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Bttilt� ��6-�6?S �lauain� 43�22t�S �ctt
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tr��2 �a�q►ut
DF.STC�'�l D��TION ��T�3S �t�'T
�ta.GIW A�4 Q�O�ta� f�WDvradb
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Ap�pcalnrl ta �nst�t Ag��verl I3�amt! �atufmtrd l�btal Pra�aat 5mtus
1 1 S"f�111�'ED 1�`�t�l'ItS TO �tML'!' �GHI'�I�1(s'XL)
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S I� U IG N O C..1 N'i' Y
DiVIS(ON OF ENCiNEERING AND RQAIaS A 1�IVIS{AN OF Ti-IF PUFile�C' WORKS I)�1'ARTE�1t'i�lT
W�Il�nm A jdhns, P E, Counly Ln��neer Denni� M ScoU, I' D�retl�r
AGREEMENT TU PAY FEES
ENGINEER'S AGREEMENT NUM�ER O
r G- R• o
This agreemeiit between Spoka�te County and l•
whose interest in the pro�ect �s
(iF'�WitB e�� y
is entered �nto th�s day of 19 �i Th�s agreement �s applicable to the pro�ect
known as
That the individuals and part�es named herein as hav�ng an tnterest in the above described property or pro�ect agree
to the following
1 Re�mburse Spokane County for pro�ect review and �nspectinn fees as s�ecified �n Chapter 9 14 of
the Spokane County Code The fees will be based on actual salary costs incurred by Spokane
County for pro�ect rev�ews and or inspections plus a ten percent admin�straUve charge, and will
be b�lled monthly as accrued Any b�lling amounts due, �ncluding any expenses �ncurred �n t11e
collect�on of an overdue account, must be pa�d pr�Ar tA the County's �cceptance of the pro�ect for
fil�ng If a pro�ecl �s approved and/or filed wid� a balance still owing, the unpaid balance shall be
paid w�thin 3A days of the invoice date
2 'I'he undersigned agrees that these fees are due and payable upon rece�pt of the b�ll�ng as spec�fied
above
3 Any tnvaees not pa�d wtth�n 30 days of the tnvoice date wtll be cons�dered delinquent If a�iy
outstanding balance on the account fQr this pro�ect �s not pa�d wtthtn 30 d�ys of the invo�ce date,
no further r�v�ews of the pro�ect documents w�ll be c�ntlucted un�l the ent�re account balance ts
paid Any balance on the account for this pro�ect not paud w�thui 65 days of the invoice date may
result tn legal act�on or the in�t�ation of other collectton p�acedures, �nctudmg referral ta a
collection agency Tlie Sponsor will be lt�ble for any and all expenses incurred by the Counry far
the colleetion of overdue accounts
4 Tl�e manthly billing should be sent to the attention of
NAME I o
/�DDRESS g
a
CITY, STATE c� r�
Z1P CODE
PHONE !f �d
I understand that failure to pay these fees may result m delay �n complet�on or approval of the pro�ect �r other
poss�ble sancttons
D If th�s fee agreement is completed by someone other than die Sponsor e, the pro�ect owner or a
prme�pal tn the firm sponsor�ng the pro�ect), such as the Engineer des�gn�ng the pro�ect, d�en
wntten author�zation from the Sponsor specifically authorizing the Age�t to execute this Fee
Agreement �s attached to th�s ee Agreeme
SiGN�TURE
�i,f' G. a2 ,t
a
(PRINT NAME)
RETURI� YEL�OW CO�Y TO SPQKAI�LE CO E GINEERS
k1s\tlagreefee dc�c 2/1/96
lOZ6 W Broadtivay Ave Spokene WA 99260-OI70 (509) 45G-3600 I�'AX: (509) 3243478 TDD: (S09) 324-3166
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Parcel 4519'I 0601
Owner APPIEWAY CHEVROLET, INC
:�,�r�
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OwRer Add�+ess a .L�� u�� c���`� c«t �te �4�- rncirs�'i j a i ��rnua
PO 80X 14558 SPOKANE WA 99214 `�f ���taso� ���t`�y j a tu 4 s�unro RAtu�T
a �ncsnts T _,�nu,� ��i cucs ��carst� I
�ns�roro' �t���i "Y' _�ct�' 1� M�t �i�u
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Site Address
6514 E 1 ST AVE SPO
Legal Description
RESOLUTION 86-0806, EXC THE E 7FT BLK 6 FQR SARGENT �nnao� I I I
RD R/W I t I 1 �t a
�aa�
NE COR SD BLK, TH N 45DEG W TO A PT 14FT N OF SD BLK 6 a� L� 4 i i I �`j I 4�� j��
PER T
LN DAF� BEG AT A PT ON N LN SD 6LK SD PT BEING 25FT WLY
OF
BLK 6 8 S 14FT LYC NLY OF 8 ADJ TO SD BLK 6 8 LYG WLY OF
A
WEST► DiSHMAN
a .^taoias�s
I
Natloe This �s nat a legal doc;umen� Dala depicted on this map is generat 8 subject to oonstant revision It is intended for referenoe
use only Legal documents shoutd be obtained from �e appropriate agency
r
�`taluation of aon-infiltration swgte t�echnotogies for t�dnent of st�orm waber im Spo�ae
Coanty
Gentra! Considerations
'Phe treatment of storm wat�r pnor to discharge to a natur�l w�t�r body is moav�ted by two separate
conoern,s Where storm water �s d�scbarg�d over t6e Spokane �alley Aqwfe�r t�rough the use of dryvv�lls
the maJor c:oncern �s over the lewel of toxsc metals vf oi! products that aught r+each the driaking wster supply
Where storm water �s discharged to surface water the pnmars► c�nc�n �a for the nutnent loading frvm storm
water thai emght cause nuisance algal blooms An additional concern is the intcoduc�ian of sediment that
oould cover gsvel 68ds m smeams and imp�ct 5sh habuat, c�og mists to storm water manag�m�at syst�ns
or reduce the storage c�apac�ty of storm water fac�Uties
Cr�ven tbe differeuQes between the aature of contaeunams assoc�ated vv�th the d�ec�ent conc�erns t6�t undaLe
the �vater qcr�lity cons�derahons that w�e h$ve for storm water, rt �s d�icuh to estab�sb a s�e critena for
evaluatmg treatmesrt systems We ne�d a two step system F�rst, the relevant water quai�ty goafs for the
r+eaesv� wate,� at issue ar� �dent�ed Second, the data on the p�ormance of tbe sy�tem bemg exam�c�ed �s
�ompared vv�tfi t�e water quaIitY Soals for the re�ivw� �ra�er.
A third cons�deratton not directty related to the technology is the portion af the ivnoff that will be r�nred
to be treated by the system For example, the v�eta�ed �ltration svvale �s d�gn� w store'h mch of
runo� 1fie exoess ov8r tlus aazount rs sitow� to overflow dit�ect�► u�to the dry�v+ell or ather ov�rr8ow
structur+e For maay storm waier applicahons m Washun�ton a`�avater quality storm" has b�n defined AU
of t6e nmoff �om tlus evem, usually expre.ssed in terms of vohm�e per umt time, must pass through the
b�ent system. The eaccess �s allow� to by pass A flow coirtrol mlet instelled ahead of �e treatment
system �s oomtnonty us� to drver excess flaws
The d�ussion beiow descnbes process� that c�a be used far the two most eommon cas�s in Spokane,
discharge to ground w�ster and d�sch$rge to sur�ce w�ter The cnt�ne vatues discuss�ad sre thase for wluch
we have signifrcant amowus of data and for winch we heve documented water quality concerns
Storm Wat+er Tr�adaent Goals for Croaod Water
There �re tv�o �pproaches that c�aFUtd be used for e�abl�sbin�g the cnteria for prote�ng ground water from
storm water dts�harges We c�n estabhsh tratmeat tec�aolo�,y perForn�ance staada�ds or we can set
acceptable ca�t levels for the water body its�lf Loc�! ordmances tend to rely an the fu^st appma�ch.
State regulatcons teer�d to foUow the second appr+oacb A combmation wonld probably re,ceive the vrnd�t
ac�eptaace
When the m6ltradoo swate (grassed perc�lation srea) coacept was developed fos the Spokane Valley
Aquifer the u�form�on ava�lable at the time md�cxital that this technology would protect w�t�r quatrty at a
leve! consaste� aith the non-de�radat�on goal set for the Aquifer When the Guu�elrnes for Stormw�arter
Ma��agement w�re written a table of per�orman�e tevels assumed For ulSltratioa svvai�s was adopted as the
a�ceptable lev�el of remaval for ahernate systems approved under the Gurdelrn�es In Tab�e 1 below I hav�e
expaaded that table to taclude some specsfic c�ntaminants not u� the onginal table and I have conv�rted the
removal rates to cLscharge coacentrations based on the average ooacentrations in ninvffassumed for those
contarou�aats m tt�e early studiea done m Spoksae Gounty With one exoephon I bei�eve thst thts table �s
v�Ld today as a ba�is fur review�g the perfiormance of a�t�native treatrn.�i systems to be used to treat
storm water pnor to d�scharge to drywells T wouid reduoe the conc�entratton cntena for lead to 0 QOS
m,g/L, dun�g the last decade or so, wlth the remo�+a1 of lead fram gasoLne, the average concentcation of
f�d �n n�noff has dropped by at least a factor of IO Whil� the percent remova! would be expected to be
about the sa�ne, the e�ueM concentraeon should drop
I
I would use the mfiarmation m t�e tabte to evatuate a tneatment syrst�n us�ag the fotlowmg process F'�rst, I
would compane the water quatrty of t6e receiving water wcth thee Standar�s If attyy contannnant in the
r��qg was et or above the Standard th�s wauld c�ed flag that conta�u�nt (Th�s �s basod on the act�on
tevel for gvund vvaier standards v�olahons �n WAC 173-200} Then I w�auld compare the r�noval raies for
the technology be�ng reviewed with the table If there sre no flagged coa�armaants m the re�ceiving water a
te,c�aolo�r that aclneved e�ther the per�ent removal crit�a or the coneentraaon cntena ('if the test was doae
on actual stoim water nmo� the technology would be considered accep�table If t�ere are flagged
contaminaats, the tec5nology would be requir� to produce aa effiuent conoentration low� d�an that Found
in the rece�vwg waier
Table 1 Expect�d �ontaminant Removal Performan�e of Infiltrghon Swates
Comaminant Expected R�noval F.�cpe�cted Concentration in Graund Water Dnnkiqg
�ercent Dis�har�e Water Standard
Total Suspended 95 10 mg/L n/a
Sol�ds
Total D�ssolved SoLds 50 J 75 m$/L 1 500 m�/L
Chloride 0 I 20d m�/L 250 m$/i.
Total N�uc�en 80 1 8 m�lL I 10 n��/L.
Nrtro�+en N'ctr�ate 30 0 7 a�/L t0 m�/L.
l�i�ea Ammotua I I I
Tatal Phosphon� 90 0 08 m�/L n!a
Ortho Phos�horus 90 0 435 rr�L n/a
Tooc�c M�tals, Typ�caJ I 80 n!a I
Total Cop� i5 0 03 m�r/L 10 m$/I,
Total L�d I 90 I 0 OS m$/L 0 OS m�/L
Totai Ziac 80 015 m�/I. S 0 m�/I.
Orgamc Ch�mcals, 60 n/a
Ty�nca!
HOD I 69 I 60 ac�/L I n!a
Total Orgazuc 60 60 n�g/L. n/a
CAfI)OA
Total P�roi�m 90 10 mg/L l mg/L'
Hydrocarbons
Bactena, �ecat 99 3 Ox10'/100 nil 1 orgamsm /100 m1
Cohform
Bactena. Total 99 3 Oac10'/100 ml 1 orgs�sm 104 ml
Co�orm
MoLes 7�on�h ths�e u no stmn�r+d far TPH m Dnnlang Watea per sc i mffi/i. �s tbe vatue typicaUy assocsetod w�ffi
imacc�ptable taste an�d oda�
Storm Wat�er 1'r�hnent Goats tor Sarrface V1►ater
'i�e process invotved for s�uface water would esseatiaUy mirror t�at followed for ground water Howeber,
when the �tsan treatment tschnotogy was devetoped, surface wster unpacts were not con�dered
There is no reason to expect that tbe tn8ltrarion swale will achi�ve cfesn up levels adequate f�or sur�ce watei
pratecuoa There was no concerted effort to evatuate the potecmal unpact of n�8hreted storm arater on
surface water un ouc early work. Wtule there are surface water qualcty standard cod�d in Wasluagton
(VI/AC 173•ZOl) ui many c�sss these are superseded by siandards specif�c to the vvat� body T�ns �s true for
the Spokane Rive.� w�ere there �s a stre�n speca�c standard for phosphorus and Lanta oa metals and
an�moaia ar+e ev+otvmg, The mformadon �mm�unz� m Table 2 rncludes staadards �awn from a vane�tyy of
sources These are generaltyy vaLd for d�scharge to the Spokaae River
Table 2 Expected Contanua$nt R�emaval Performanae of Infila�tion Swales comparod with Surfa�ce W�ter
Standards
ContaQUtuat E�ected Removal Expect�d Concentrat�on �n Surface Water b�scharge
pencent D�sc�ar�e Standards
Total Suspended 95 10 mg/L 20 a�g/I.
SoLd�
Totat D�ssolved Sohds I SO 75 mg/L I A/a
Chloride 0 200 m�/L I 230 mplL
Total l�t'ttro�en 80 18 m�/L 10 m�/L
Nb�a�en Ntcate 30 0 7�/L 10 a�/[.
Ntro�en anmon�a l I I
Total Phos�horus 90 0 08 m$/L 0 02S m$/L�
Ortho Phosphorus 90 0_035 m�/L n/a
Toxic Metals, Tv�ical I 80 I I
Tota1 Copper 8S 30 u�/L 2 6 u�/L'
Total L�d 90 45 uR/L. 0 2$ u�i,�
Total �inc I 84 1 SO u$!L 241u$/L'
�rgamc Chem�cals, 60
BOD 6A 60 a�/L I 30 m�/I,�
Total4rgamc 60 60 mg/L n/a
Carban
Totsl Petroleum 90 10 mg/L 10 mg/L'
Hydrocarbons
Bactena, Fecal 99 3 Ox10'/200 ml 100 orgamsim 100 ml i
Coliform
Bactena, Total 99 3 Ox10'/100 mi n/a
Col�form
I�ooes Ec�to�& Kmg Coimty Stoam Wa�erD�sr6o Cno�ca
a Total phospholus lev�ea �stabl,s�ed as be�ng pro��e of Lo� Lake smr� vvatex q�ty
3 Chro�iccntene hased a� 20 m�/L toial
4 Standand Mumccpa[ �Vasiewwaicar T�ea�t Plani d�har�e.
s Staaderd fa� comsact r�cc�tton.
Apptication of the Review Glriteria to the CFS Starmwater Tr�eetment Sy�stem
And now to your specific quesUon Does the CFS Stonnvvater T�ee� System n�t ow crteria for
stormvvater quahty managen�ent?
Based on ihe data 6rom you prov�ded and �e cnten� above the �FS Stormwater Treaimem Syste� woutd
be a borderlme t�me�nt system to ptace upstream fmm a drywell m�ecaon po�nt over the Aquc�r Tius �s
based on the fa�ure of the system to remar�e mtfate n�+ogen and the borderline �'ectnreness at ac�evmg
the d�su�d con�entradon for effiu�nt Total Petroleum Hydroc�rbons 'i'he removal rates reported fi�r metals
ectd the other organic oompound ind�cators are in the range expected for utfittrabon swales TTtiee metals
vonoent�ons in the effiuent from tfie CFS syst�m are lower a�an t6ose exp�ct�d from swales However,
these data sre based on storm nuioff "c�eaaer" thaa that stud�ed m the work done rn Spokane This
accounis for the lowe� e�uent cvncentrations and d�ay or may not �mpact the rem.ova! rates
Companng the removai charactenstics of the CFS Stormwater Treatment System vvrth the rece��ng water
standards that we would expect m Spokane �s not qune as good These systems might seive as trea�i�i
pnor to discharge to a biofihretron system or other final ire�Lnent pr9ovess, but they would aot be sufficient
alone The system falls coa�tderably short of m�etiug the m streani phosphorus concentrat�on for the
Spol�r�me Rivef The r+eported e�ueut level for total phosphorus would requ�re a 201 �on to a�clueve the
goal Sumlarly, the average e�ueat copper and lead aont�nvations are s�eral times �gh� than diose c�ted
for chromc fis6 taxic�ty, av�e z�nc �s very near t1�e cbmmc toaoc ieve] C�veq that the Spokane Rive�
periodic�y exceeds th� chronic level for l�ad and aac, it �s un�kely that du�ect discharge of �FS
Stormwater Treatm�t Syste9m ef�uent to the River would be penmtted by Ecology The sysieu� nught
work on surfac� water other than the Spokarte Rrver
If you hav�e any quesdons on my thml�g on th�B, fet me know
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STORMWATERT�
MANAGEMENT
December 22, 1997
Dea�a Franz
Spokane County Publ�c Works
1026 W Broadway Ave
Spokane, WA 99260
Re StormFilterT"" Treatment System
Deaz Mr Franz
Thank you for speaking with me regarding the StormFilterT"" System and the Emcon
project
As discussed, I plan to give you a bnef presentation regarding the system on Jaauary 7`�'
We have some shdes of vanous appl�cations and will address design, performance and
maintenance �ssues We encourage you to invite others to attend and I have advised Mike
Morse of Emcon. The pres�ntation should last about an hour
Thank you again aad I will look forward to seei�g you at 2 PM on Jaouary '7`
Yours truly,
STOR;MV�TATER MANAGEMENT
elon R. Wilson, P E
Duector of Sales
2035 N E Columbla Blvd Portiand, Oregon 972I1 •(503) 240�3393 Fax (503) 24Q-9553 http //wrvw s7vrmwatermgt com
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Managerr�ent...
Stormwater Management is a progressive,
product oriented company whose mission
is to develop �nnovative stormwater treat-
ment solutions for engmeers, developers
and Jurisd�ct�onal authorities to help keep
our water ways ciean a
Since 1991, SLormwater Managemer�t's t
patented signature product, the CSFa° s
Stormwater Treatment System (CSF"), has ,t,
been treating stormwater runoff from srr�all
single retail sites to large urban parking
lots, res�dential sveets, urban roadways
and freeways c
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In addition to our product lines, Stormwater -''a'�
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others in analyz�ng and developing solu- E 4
Uons for unique stormwater runoff s�tua-
Uons As part of our research and develo�
ment commitment, we work to Fnd ef�cient
and econom�cal solutions to meei the
requirements of the National Pollution
Discharge El�mination Systetn
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stormwater iuno�/ l�n� t/�oe 18 mil�, �/ane
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Our staff scientists are continually working
to improve ways of treatmg stormwater �f
runoff by o
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Overall filter hydraulics analys�s r ,r
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Field research and analys�s
Stormwater and waste water
characterization studies 1 q
4 Pre-Veatment studies y��
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SedimentBUon studies
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Mant�facta�ring
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Over 30, 000 cublc yards of /eaves a�e processed
annua//y at our 70 arne pro�essing fac!/ity
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of the Redfa/ F/otiv Fi/tei Certrir�
assures ne/iab/e periormance
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Our professlonal englneering stafi Js expenen�ed /n deslgrnRg a
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b�oad array of stormwater a�v/Icat/ons
f�� j, 9 ri i
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4 The purpose of the CSF° is to filter out and n
prevent pollutants from entenng our water J M
ways Like any effective filtrabon system,
penodically these pollutants must be
removed to restore the CSF° to its fuii eff�-
�i� ciency Mamtenance needs are dependent
Q,+` on the poilutant load characterrstics of
each site Stormwate� Management pro-
vides deLailed Operat�on Maintenance
-s guidelines w�th each unrt
M
r'�c
Maintenance services can be p�ov�ded
completely, or �n part by Stormwater
Managemerit We provide tracking of all
systems, �otrfy the owner of maintenance
needs, and noUfy the regulatory agency
that the system has been maintained
The Radla/ F/ow Filter Cartridges are qurck/y and
easily �emoved and iiep/aced dunng mafntenance
oper�tians
-f` �Y
e
o
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I i
R�II Lsanes 18� �1tt�er l�sdlw dLedla In i�s�ldw�l Land
@alls¢�ed QorRposttng Pl�ooesssd N.� �ilts� wlltarMsAla Applte�tlo�B
The Sustalnab/e Cy+c%
Awards
1997 Envi�rrn�e�nta/ �994 Ern�inoo►�nte�rfta/ Ex�e!llei�c+e
A�ah�r of dre IQear /n�otrataer o� the Y1e,ai
McGraw Hill, Northwest Environmental AssociaLon of Washington Businesses
Resource Rev�ew
1992 Engineev�rrg
1986 A�Oe�rit Awaid Ex�el�enc�e Gran�d Awa�d
Metro, Urnfied Sewerage Agency, NRCS American Consulting Engineers Counal
Stormwater Design Program
�9�2 Eirg�rne��ing
Ex�e/� Gran�l Awand
Consuitmg Eng�neers Courtc�l of Oregon
�lpplications
Stormwat�r Managen�e+nt has plac�tl CSF� Stormwater
Treatn�ent Systen�s in a wide varie�y of applications inciuding:
Roegiavta/ Fie�eway SJ�st�ms anod Roeadi�rays Sina// Com�te,ncua/ an0 P�rb/'ic Pbje�cts
r
California Corridor Constructors, McDonald s Corporation (multiple)
San Joaquin Hills Transportabon 6oston Market (multiple)
Corridor, Orange County, CA Taco Bell (multiple)
Oregon Department of Transporta�on, City of Lake Oswego Fire Station,
U S Highway 30, St Helens, OR Lake Oswego, OR
Tn West S�de Light Rail, Park and Community Transit Maintenance Facility,
R�des, and Mamtenance Facilities. Everett, WA
P�tland, OR
Regiana/ Munecipa/ Stoornrwatieer
Large Co�rr►ne�ncia/ P➢►ejects /nt�uvve�rne,rtt Facr7�it "�es
Nike, Nike World Campus, City of Olymp�a. G�les SVeet Regior�al
Beaverton, OR Water Quality Facility, Olympia, WA
Costco Wholesale CorporaUon (muitiple) Washiru,�ton County, 185th Ave
Office Max, Kirkland, WA Regional Facility, Hillsboro. OR
Safeway, Olymp�a. WA
Meridian Park Hospital, TualaUn, OR �side�rtia/ Coolle+cta�r Raadways
Courtside Apartments, Otympia. WA Sllver Ridge, C�ty of Portland, OR
Lighthouse Plaza. Rehoboth Beach, DE E Lake Sammamish,
City of Redmond, WA
Buriington Public Works Department,
Burlmgton, VT
Snohom�sh County, Lake Stevens
Bridge Deck, Snohomish Courrty. WA
(503) 240-3393
'1-BOO-548-4667
Fax (503) 240-9553
s
2035 N E Columbla Blvd
Portland, O�egon 9721 '1
http //www stormwatermgt com
Storm�vater Management All About Us bttp /haww stonnwatermgt cow/aboirt.hUnl
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J �ft�R'AtM�'��`LrR� y K' L
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atl aaa�.t us
Who We Are and Wh�t We �o
Stonnwater Management of Portland, Oregon, is a progressrve product onentated
company whose miss�on is to develop mnovat�ve stormwater treatment soluhons I
for eng�neers, developers and �unsdictional authont�es to keep our water ways TMed� sho,�s
clean f
Since 1991, Stormwater Maaa�emeat's patent� s�gnature product, the CSF� Stormwater
Trea�nent Syste�n, has been treahng stormwater ruaoff from small commercial sites to large
urban mall parkinQ lots, residential stree�s, urban roadwavs and freewavs
1�� As part of our research aad developmeat comm�tment, we work to fiod �cient an
y� economical solutions to meet the requirements of the Na�onal Pollut�on Discharge
El�minaron System (NPDES) Stormwater Man�gement also provides techn�cal
support to others in analyzing and develop�ng soluUons for unique stormwater runof
srtuattons
The CSF� uhLzes a specially processed filter media denved from Autumn leaves t
�eat stormwater runoff 30,000 cubic yards of le�ves are gathered through the City of Portlaad's
leaf collechon program and brought to our 10 acre site where they are composted over aa
8-month penod The mature compost �s then processed into pellets and used as an effechve, cost
ef�icient filter med�a
The filter m�ia removes up to 90 percent of the oils, greases, heavy aietals, sediments and other
pollutant� that contamiaate our waterwavs and threaten aa�uat�c life The filter media is oacked in
perforated cartridges that are housed in concnete vaults The contaminated stormwater pe�rcblate,s
throu�h the cartrid�es aad down throuKh a pipe system that is cast iato the floor of �e vault T6e
treated water is channeled mto a collection pipe or directly into a stream or wetland
Oace the filter medi� is used and is no lon�er �cient, it �s remov�, tested and then can be
recomposted to biode�rade organic poltutants 1'be oompost can then be used for landscaping,
erosion control, or as da�ly cover for landfills.
5 s'
�3
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►�11 Lsss�s C�a�esticQ Peoah�es r�ils li fl�fte�d la�d
ne Colteote/ ol l��rs� f11tu S�d� Cii 0�61�r fllt�r Y�/i� ia�11aa11oa�
The Susta�rrable Cycle Fall leaves to compost to filtration, and ther� recycled to land apphcatron
Please Contact Us
1 of 2 12/OS/97 13 51 32
StomtA►atet Maosgement All About Us lutpJ/www storniwsienu�kcom/abont htinl
Please fill out the form below and hit the "submit" button at the bottom when you are ready to
send
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home ahout us praducts awards �uid �ued�a co� era�,e li�erature en�neenn�
Copynght 1997, Stormwaier Nianagement
2 of 2 12/OS/9713 51 32
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1 of 3 12/OS/97 35
Storn��r►ater Managem�nt Water F�trahor� httpJ/www �cormwatern��c,�n�/
Clean Water is our V'�on Abo�t us
wh� �e �a
we've helped w�th
What's New state-of-the-art
Updated Fall 1997
SY
Produets
In�i�oducing the Linear Filter Now offenag three
The CSF� Linear F�lter �s rcc:ogai2ed as ',f;' solut�ons to
am m�ovatrve "Best Management '�'1 stormwaterThe
treaanent
PIdChCe" (B�� 1RCCZS VBttOUS r�"�'
CSF� Drop-In
regulatory agency reqwremeats for F�ter, The CSF�
r�emovwg stormwater pollutants For pp�n F�ter and the
more mformaUon regard.u�g the new CSF� Linear F'ilt�r
Lmear F'ilter, please see our u�d�ted
prndu�t� ���n CIiQs and
Awards
Announcing the new CSF Desig�t Awards and aews
Monual j c l�ps from experts
wbo reoogmze om�
We have �mpleted a ncw Design o f
Manual that allows engineering firms to
de,sign their ovrn CSF� systcros! For
more mformation please see our p__ Liter�ture
u�dated engin�rine saction �mP�y �d
product �nfonaation
Updated news clips ond b�+ochure ���le PDF
Gheck out the latest news sirticle.s for and MS Word files
w6at they're saying abo�l us We have
also �tt� our brochure with Engineering
w-d�pth informat�on about Stonuwater r Research, d�gn and
Management techwc�l
���g
and rec�t stucLes
p
HOW t0 COIItACt US
STOP;MWATER
MANAGF:N�NT
2035 N E Columbia Blvd
Portland, Oregon 97211
Phone (503) 240-3393
Fax (503) 240-9553
Annapolis, Maryland
Phone (410) 266-8665
Fax (410) 266-5588
Send Us a Note!
How did you 6ear about our
web site?
Choose One
-e r r�' i
SLibiril t
And, visit us �t these upcomiag
Trade S6ows!
2 af 3 12�05/97 13 32 38
St�rnia►ater Mauageweat Wat�r Filtrahon Lttp //www storu��vatem3gt con�!
b
about us products cLps and awards hterature (�meenn�
(4� Copyright 1997, Stormwater Management
3 of 3 12/ilS/97 l3 32 38
Storni�vater Manag�m�nt Products litq� //wtivar �ormwaternigi.00n}/products.Lmil
ti
ar��wwr�s� r
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�ur Full Line mf Pa�dess� �ass� �a�$�
S�a�mvyat�r lt�am�ffi�t ai�e� �a�►v �e CSF� �t�r�wr�ter
Treatment System w three differe�nt coafi�urations the CSF�
�t�r the CS�� B3rop-ln �'iDter and 4he n�w CS��
Linear Filter
Fle� 8o��odo� Tallia searlaq lld
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No matter which option you c�oose, you'll receive the following
t�enefits
The CSF� is recognized as an innovabve "Best Management
I�ractic�" (l��F) a�d m�ts vanous regul�t��Y ���Y
requirements for reinoviag stormwater pollutants
Is suitable for street, hi�hway and traasit faci�i�i�s,
r�idential, retail and commercial developments, busule.ss and
industrial sites, and maintenance facilities
Is uniquely effective for constrained srtes and treatment of
higb stormwater flows
Re�wres sunple and predictable maintenance
Uses less than 10'/0 of land compare,ci to ponds and swales
H'igh treatment �c�ency re�noves up to 90% of all solids,
85% of oils and �reases, and 82% to 98% of heavy metals
H'igh range s�zes from 0 13 to 8 0 cfs and gceater
Saves up to 10 times the cost of traditional stormwater
treatme,nt methods
Introducing the New CSF� Linear Fitter
1 of 2 12/OS/97 13 33 2l
Storm�vaier Manag��uent Products LttpJl�v�v stormwatcrmgt co�nlproducts.btuil
Pr�l��s�w��t
L.inear Fitter
s�a. c�.■ c�a.o��
Tialliz ��aris�
Gral�
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The CSF� Linear Filter (see Figure 1) �s panc�ularly
advantageous where small flows are being treated or there is little
available hydraul�c head to spare The unit can be vonfi�ured u�
between parking area wheel stops such that ruaoff sheet flows into
the filter
The CSF� L�near Filter cons�sts of one or two pre-cast concrete
channels that are 10 or 20 feet in length and 2'9" in width These
units tr�rt peak water qual�ty design flows ranging from 0 13 cfs
to 0 27 cfs The CSF� Lmear Filters are installed flush v�nth
finished grade and function similar to a c,atch basin or memch
drain The top of the unit is grated for easy access
Typically, the CSF� Lmear F�Iter is installed as the primary
receiver of runoff similar to grated catch basm but is eqwpped
vv�th side chaanels to pmvide for pre-treatment The grate is tiraffic
bearing lids so they can be installed in parking lots, and for ail
prachcal purposes, take up no land ar�
iRftS[TR�i NAMI�C Cfl latt�l �111[� O�IRII �M MSat 0! ItAJ/Ott
ar
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Fi�ire I Clrck to see J�ill srze.
For more informat�on regarding the new CSF� Linear F�lter,
plesse contact us at mfo(u�stormwaterm�t com
home about us products awards and m�a oovera�e literature
cn�neermg
Copynght 1997, Stormwater Management
2 of 2 12/OS/97 l3 33 29
Storn�water Maaagewent Engm�enng Researcli I�ttp lhvr��� stom�w at��gt.cbm/eng�n htriil
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Emg�neeni�g end Researctr
CSF� Design, Operation Maintenance
An�oanciRg the new CSF� Design Man��al
We have completed a new Design Manual that allows eng�neenog
firms to design the�r own C SF� systems
The Design Manual provides you with Standard Details and
Sp�ificai�ons m CAD format on CD ROM
The Design Manual provides desig� examples and case
hist�ories
S�ormwater Manageraent provides Quality Control and
Techaical Support Services at ao cost
Design Services available for custom applications
For more tnformat�on regarding CSF� designs, please contact our
engmeenng department at enQineenn�(�a,,stormwaterm�t com
I�ow does tl�e CSF� work
v co�aa� v,�u� uc� 000ss
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rw�. ssu,mc� °i`R�cv�
w�oui ��o+r ;�unemc[
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The GSF� �s design� to unprove the quality of stormwater runoff
before it enters receiving streams, estuaries, ponds, lakes, etc The
granular compost med�a acts as a mechan�cal filter to remove
sedunents and as an ion exchanger to remove dissolved ionic
pollutants such as to�uc heavy metals The CSF� also acts as an
adsorber to remove organic chemicals, and prov�des a substrate to
a�d in the m�crobial degradarion of orgaruc compounds (such as oil
and grease) between storms
CSF� StorYnwater Treatment Systems are sized to treat the peak
flow (or a portion of the peak) of a water qualrty design storm, as
1 of 3 12/05/97 13 34.44
Storn�w$ter 11Rana��went En�inaenng ResearcL httpJ/www s�tormwatenugtcow/eogm.Ltwl
filtraUon system, penodically rhese pnllutanLs m�st be removed to
restore the CSF� to its full �ciency and effechven�s
Ma�ntenance reqwrements and frequency are dependent on the
pollutant load characteristics of each s�te
Mamtenance services can be provided coropletely, or in part by
Stormwater Management We provide tracking of all u�stalled
systems, notify the system's owner of maintenance needs, and
notify t6e regulatory agency that the syste�n has been maintained
To ass�st the owner with maintenance issues, Stormwater
Management provides detailed Operation Maintenance
Guidelines v�nth each unit
Media residu�ls can be recomposted and used in laadscaping,
erosion control applications and cover for landfills This
ecological process m�mm�ze.s disposal costs
RouUne ma�ntenance of the CSF� is simple and inexpensive
Ma�ntena�nce requirements of a CSF� filter are retated to the type
of discharge which the unit receives Idealty, the filter is
m�untained dunng the dry season and is prepar�i to tre,�t
stormwater during the rainy season
Quest�ons? Comments� Send an email messa�e to ow
mau�tenance department at maintenancena�stormwaterm�t com
home about as products awards and media covera�e lite.rature
enginoering
Copyright 1997, Stormwaier Managem�t
3 of 3 12/OS/97 13 34 50
Stonuwat�r Niaue�esnent News Clzps and Awards �ttpJlwww stormwa�mgtcoiu/awards Ltuil
i
��''�y�dtT�'�` 4
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o
ll�@WS CIJ�pS �ltd /Ai4►�I�B
Recent Articles in t6e Trades
"Once stormwater reaches a Eng��teering
prescribed level witt�n a News-Recol�
vault, water �s siphoned
through cylinder banks
Treated water exits thiough Filtration System
a dra�n lme connecced to the U�es Leaves to
bottom of each filler The Remove Solids
SY�� SepLember 1, 1997
�T approx�mately 80% of all page 12
suspended soLds, metals,
hydrocarboas ansi othe� poUutants, conciudod
Unified Sewerage Agency, Hillsboro, OR m a
chree year study
The system takes as little as a leath of the
space of traditional stormwater s�vales or ponds
Installation oosts are al� about 10% of
oonventional tr�eatcaeni systems, the firm says `In
our case, the s�te was very l�m�ted for space,' says
Svott NL Dahlqui,st, design engineer for Richar�d
Carot�ers Assoc�ates, S�ttte-based desiga
eantgmneers for the NIASCA pm�ect 'A pond of
near�y 150,000 cu i� wauld have been necessary to
l" t I1IDOff fl�OID IhC CdID�t1S�
"The oounty requued all Pollution
ranoff leaving the Engineering,
developed site to be treat� T" Spac�Saving
pnor to discharge to t6e Fil�ers Handle
wetlands The CSF filter
technology uses less than 10 �igh-Volume
percent of the land r�wred Storm Runoff
for comenuonal ponds and Au 1997
swales, Fage 39
has a large
treatment c�pacity with low operabon and
mamieaance rvquirements and saves up to 10
hmes the oost of oonvenUOnal met�ods
'Com►�onal on-grade detention and bioswales
were not feasible due to the liauted developab le
land laad area,' explams Costco Director of
Developmeat Jack Frank "I�e CSF system
allowed us to use the properly very e�c�enily
1 of 5 12/OSl97 13 36 13
Stonnv�at�� Mana�eiuent Nen+s Clips aud Aw�ds littpJ/ww�� slv��u�vat�-rw�� wiulaw.uil�.I�u�il
s "State and local agencies Wat�ar
have chosen the fiite,� system EnviroR�r�eRt 8c
as a best management
pracUce to hetp meet Teebnology,
Nat�onal Pollutant Dns►charge Compost Media
�Lmmation S�stcm pernut Capture
requirements for stormwater Pollutants from
9�LY Stormwater
Stormwaler feeds into Runo�'
c�tch basu�s oonnectc�d to a pipe that leads iato the Jul 1997
filter, which per�'orms three pnmary treatment Y�
p page 21
Adsorpaon �moves some of the oil and
grease organic chenucals stick to the
composted le,�ves
M�hanical filtration traps some so�ds and
sediments w�thin tlie porous structure of the
granular f�lter mediom
Cation exchange removes soluble heavy
metals leaf oompost�ag forms h�nuc
substancc� that contam a h�gh caUoa
exchaage capacrty
"I'h�s �s a very, very exc�hng breaktfinaugh m
pa�ve stormwat� treaiment because �t goes
beyond sedimentation and filtration,' says Roger
Sntherland, vice prestdent and duec�+ar of water
resources for Kurahashi dc Assoc�ates 'C6emical
procc�ses within the media ac�e reducmg pollutants
oa a mass bas�s'"
"Stormwat� Management's Civil Engitteerittg
method of treanng 11�eivs, Stormwater
storniwater nmoff makes System Turns
mventive use of leaves that
W�ste into
otheavvise m�ght be
landfiUod The Treatment
�mr�onmentally June 1997
system �s a boost co those page 44
mandat�d to clean up
slorniwate�r nmoff 'Pari of
our v�sion is to help -T-
uaptove the quality of the
water nutn�ng mto our rlvers and streams and also
to pro�vuie an eoononuc sol�on to (pmv�du�g)
clean water' Sa�d Vice Pr�dent ]ames Lenhart,
P E'In terms oi sol�ons, you have w satrsfy the
needs of the develop� and the goveroment
agency That �s oom�ng closer to a reality as
des�gners aad developers aroe disoovenng the
aqnbutes of the CSF and the po�'ive �mpact it
ran h�ve on water quality
2 of 5 12/OS/97 13 36 15
Stonuwat�r Mana$�nnnt �V�w� Chp, �ucl Aw� Lttp !/www �tunuw�t��nu�;t wwlawards html
"TThe CSF� bas been Water dc Wostes
installed in h�eat3ng maay Iligest,
stormwater ninoff Stormwater
s�toatxons throughont the Treatment S stem
United St�tes These
appl�cations wclude small Satisfies Both
suigle retail sit�.s to large Developer and
ucbaa parlang lots, R�gulator
re�dent�a! streets, u�an 1997
roadways and freeways
These systems meax Page 10
stormwater �lows from O 1 to 8 cubic feet per
second. The CSF� c�n be mstalled in sidewalks
and parkmg lots, and for all prachcal purposes
take up no laad �ace T6e CSF� can also be
mst�Ued m chall�ng appucaUon areas w►th
sle� slopes and very de� hydrauLC grade Lnes
"When the pr�ssures of I.and sttd Woter,
urban vvth oollids with
the nec�to protect our W Dec'td ous Lesves
natural envu�onmen the
so�ution oRen pres�ts a r �``�i for Stor�nwater
s�gnil"icant challenge TreStme�lt
Costco �dendfied a I S acc�e March/April 1997
site to construct a store in page 54
'I i�d,, Oregon. Due to the
Lnuted space on the sit�,
the use of trad�honel stormwater iecbmologies
suGh as ponds and swales was not prachc�al
"We're v�ry ple�ased with the solution that
Stormwater Management ce�ommended," says
Cost� gc�eral stor�e manager Steve Marcy "We
we,�e ablc to retain the numba of parkmg spaces
we had originally plannsd for on the s�te,
e�echvety treat the stormwater nmoY� from our
parking lot, aad mcet our re�ulatory obGgations In
a responslble aad oost eff�ve manner
"What do you do vv�th McGru►a-Hill
r 30,000 cubic yards of falten No�'fhw+ester�
leaves7 In Portland, Oregon, Environmental
th�t qneshon has been
a�asw�red w�th the the hel Resoaree Gatd�
of the engweeis at p Eovironmental
Y Stormwater Manegemen� Achiever of t6e
Stormwater Menagem�nt y�; Stormwater
W has develaped a process to Management
compost leaves into a 81ter Januaty 1997
medium that treats sotrmw�ter rwioff, remavwg
pollutants aad disclh��g�1g clean watea mto pages 25
strrams aad rrvers Tbis kind of imaovahve
t�unl�ng 6as earned Stormwater Managemeat the
Environmental Actueve� of t6e Year award"
3 of 5 12/OS/97 13 36 18
Stonuvva�r Msua$e�n�t N�ws Cvps mtd Awards httpJ/www s�ttormwat�aug�c�m/awards Ltnil
"The San 1oaq�n Hills Environnre�etal
TransportaUton Corridor �s Solutio�ts
an 18-mile multilane,
d�v�ded coll tu wa �•�d•��R Compost at
y the Root ot New
beiween San Joaquin T
Capistrano and Newport Stormwater
BeaGh (orange County) Runo�' Treatment
Calif The stonnwater System
tr+�tment sqstem had to be September 1996
adaptable to the drve�e a e 26
challenges of collecdng and P g
tr�ating stormwater nmoff from a highway
ninning thraugh mountainous and fully deweloped
land mcapable of abso�in,g nuioff T6e
treatment system chosen is based on the CSF�
Stormwater Treatment System developed by the
envuonmental engineers at Stormwaier
Management of Portland, Oregon."
n �l@Q P01���1"S Tc�E'i 1Ip Alaska Airlines
the�r autumn leaves, they Tarning Over Old
probably ar�n't aware they LeBVes
are helpuig fight water S tember 1996
pollution The cm►'s le,aves eP
are a pnmary ingredient in a pages 9-10
aew environmenial
tecbnology that �s helpmg
clean up lakes and strean�s
all over the West. Stormwat�r Management, a
four-year-vld Portland firm, oom�osts these leaves
and proce�ses ihe oompost to create the unique
filhat�on mc�d�um that �s at the heart of the
coaipany's CSF� Storntwater Ti�eatment System."
"A three year study of a �IO�C1P
CSF� Stormwater Commercial
Tre�nent System Applieations for
messured removal rai�.s for
a11 typcs of poi�uhon Compost B�ofilters
Ov� tbe results mcLcate
that the CSF� perf'ormance October 1995
ravcs as uutam W P g
1 ao�d�ngs inc�se The first a es 57-b0
flush portions of storms
genecally carry the lug,6est
level of pollutants and cause the shock loacLngs
that can lead to fish laUs in rece�ving waters Data
indicates thai the filter effectively reduces the fiist
fulsh loadtngs to sa�fe levels A CSF� System
has be� ui operation for two yeais at a Metm
Transfer 5tation in Gladstone, Oregon Acoording
to Came Craten, who was Me,�ro Hazardous
Matenal Manager at the time the system was
installed, there has been a aoucable im�ravem�nt
in both the water and habitat quality of the
wetland over the past two years She reports
in� p�ce of wat�r fowl and fi�h in the
we�land and reduced amount of algae io the
receiving wate�
4 of 5 1?J�5�97 13 36.21
Sto�nwa�er Mana�euient News CLps and Awards i�ttp /hvww stormwate�rn�g�oomlaw►ards bh�l
Comments� Qu�ons� Please send an
email message to us at
info(�a,stormwatermQt com
home about, us producis awards and medi� coverage liteaature
en�inccrui�
Cd Copyright 1997, Stormwater Mana$ement
I
I
S�of 5� IZ/,OS/9'1 13 36 21
81/0�„1998 12:88 5932409553 STORMWATER�MGT PAGE ,01
t
2035 N.E. Colurttbia Blvd.
Portland O on 972�1
All �d 11� F I� E� 110 �hane: (503� 240�3393
Fax: (503� 2�40`9553
1•800�-548-466T
htq�J/irvtivw.si+�rr»�►aiiern�gtcom
�ba D�an Franz From: Felon R. Wilson; P.E
F�c 509�324-3476 Pa4gess 2
�ho�s 509�00 0ar�e� January 8� 1998
e�e� StormF�ber Sys�em CCs JefP Lower Emoon
0�rgeee4 D For 1'�ev�vu 0�ease �:onunent D�lease Reply D P�ease Reeycte
•'Cotnntentss
Dut�ng our meeting yesterday� there �wer�e several items which I promised fio
address:
Q. V1lhat is the cost of Perolite�
A. $01 S to $0.25Ab
Q. VUhat is the life of the Fab�� F�Ite�?
A. The Fii�er is oonstruc�bed!'� of a syn�hetic maten�l, polyester and shoutd not
de8rade. 1i1�e would expect 4�i� life to be �n the range of 10 years wlth normal'
opera�on.
Q- Dofyou have oold weather ir�feroenoes regac�ding FreeaeJThaw oonoems?
A. Yes, we have a SfiormFiitrer in' Delawar�e. The project'is the Lighthouse Plaza
and the contact is Brian Tumer'withh Sussex County, �DE aQ �302�856-7219. Our last
�nversation with him �indic�ted no problems.
01/8�;1998 12:88 5032489553 STO(�MWATER� MGT PAGE 82
f
�i
r
P
January�8, 1958
�t
E
t
Q• Du ,you have any systems r�vvhlch discharge into jnfiltration structunes?
A. Yes� there are several in th� Se�le anea. In� p�ficular, there is a 8oston Marke�t�
installat�on in 1Cent which dischar�es from the StormFilter to an infiltrabon stru�ure.
Piease caii if ther+e ar+e, ad�i�onal questions or conoems. We look forward to
reviewing the Spokane st�nd�t+Eiis.
r
i t
Paea 2
b
S O K A N E C O U N T Y
DIVISION OFEA1GIrDEERAVG AND ROADS A DNISION OF THE PLIBLIC WORICS DEPARTME�iT
Wflliam A johns, P B, County fingineer Denrus M Scott, P E, Director
January 27, 1998
Mike Morse
Fmoon
7106 Wesi Will D Altan Laae
Su�te 102
Spokane, WA 99224
Sub��t Appltway Site
Water Qnelity Alternative Treatineat System
De�r 1Vfike.
The Spokane Cow�ty En�aeer's Office has grne� cansiderat�on to �our proposal to nse CSF F�lters f�r
stornn watsr quaLty tr�nt, �n lieu of usmg the Grassed Peroolat�on Aneas (C�PA) descn�d m. the
Spokane Couirty Drainage standards The CSF filters are manufactured by Stiormwat�r I��u�e�ent,
located �n Portland, Oregon You have provided Spokaue Coimty witb brochures and technical uifo�an
on th�s product
'I�te follo�wing issueslconcerns would need to be addr�ssed sabsf�.ctonly, �n order Sor the Caunty Eng�neer's
Office to penrui this CSF filter system to be �sed
The water quaLty treatmeut syst� will aeed to be abte to perform �a a dependable, cons�steat manner,
such thai pollutant reduction roquu+emeats will be met. The pollutaat r�eductton reqwre�aents are listed
m Table 5-1 of the County's Gufdel�nes,�'or Storniwater Manageme�t Please prov�de mdependent t�st
results wluch danon� these cntena can be satisfied. If some or a11 of �.s uiformabon �s pr�ed
ia your pubhcation entttled "Indepeerrdent Three Year Perfornrance Summary", please d�rect us to the
tabt�s where tlus �s l�sted so we can readily make the dtr�t c,ompanson As we undersKaad tt from
previous canver�ons, the Couaty's cntena can be met by usin� a oombvnanon of filter m�d�a What
combmanon would �ai be
How re�dily available �s the filt�r media' If Stormwa�r N��oag�nent gces out of busmess, are �ere
other sour+ces available? If so, whe�?
How weU doe.s the CSF filter systera fuacbon under cold-clim,aie coud�pons? Spokane's ctunate �s
sign�ficantly oolder than the West Coast ar�ea, w�e�e frost dept6s can o� go dovvn to 3' 4' Please
provide us �nth perforniance records and r�eferences as �t relaLes to �is issue
What maiatenance program do you propo5e� As stated pre�nously, the County will aat assume the
maurt�enaace responsibil�h� of dus treatmeat systan, however, we need to make sure d�a�t an a,dequate
ma�n�teaanoe program is put in place pnor to acc�tanoe of plans �or oonstrucdon On a relaLed note,
the County Engineer's Office will reqw�e an annual maintenance cost to be ca�nputed. Surety for
1Q26 W 8rcadway Ave Spolcane, WA 99260-0170 •(509) 956-360U FAX (509) 324-3478 TDD (5� 324-3166
Apple�vay Page 2
Letter to Emoon dat� 1/2�/98
maiatenance in a form acceptable to the Couuty Eugiaeer wiU n�ed tio creat�od. The Surety w,ll need
ta oover a mioimuai of 10 y�ears of maznt�aance, aIId be re�newable and ad�usted accordingty, at the end
of tea years V
May we suggest�tl�t m uist�ea�d of usmg the CSF� Filter syste�n, yvn consider usiag a GPA� svvale for watier
qualtty �t At a depth of 3 ft to 5 8, �v�staU am m�permeable luner and d�+ect die treated wa�er to xa
dr�rvr►ell-
For aay altefnabve, please coord�naLe your eff+orts wrt6 the WDOE� smoe as you reported �tb�eir ia�dal
crit�na dnvestthe �eed��or�a crea�ive solution on water quaLfiy b�at�nent In t�e ne�r fudu�, C'ount�► sta�
W�DO� sta� aad yourself will neo�d Lo meet awd discuss rt�is Please pruvrde us with �e name of the
indtvidusl you are v�rork�g at ViTDOE.
If you hav� any quest�tons or commests �eel free m call us at 456-3600
S�acer+ely, S�acerely,
Div. ,Engineecing d� Roads I�iv, of Engia g�E Roads
Doug Busko, E I.T R De�aa �ran� P.
Plans Review Enguieer Plans Review Coordinator/Eng�taeer
oc Bil! Hemming,s, SpQkane Co�mty
The StormGafe�"
Sto�mw�t�� High Flow Bypa�
I�Tts pn any Standard Sli� Manholed
ApPl�catOons:
The StormGateTM° high flow
bypass enhances water
quality facilrty operation by
dfrecting more polluted low
flows to stormwater quality
fac�liUes while allowing fvr
the bypassing of extreme
flows The StormGateTM' can
be used in conjunction with
stormwater quality faciltt�es
such as filters, swales�
oil/water separators. ponds,
lffgA Ffow
and water quality manholes
How irt Worfcs:
In F7ow L+ow Row
to Trsatntettit
The system works by allow-
��g water quality flows to
be routed to a water quali-
ty facility downstream
Higher flows from more r.
intense storms are restnct
ed by the orifice and d�rect-
ed over an ad�ustable weir,
thus bypassing the water
quality fac�lity
Syst�m F�atu�e►s and B�n�f�t�:
Enha�ces settling of sediments by increasing stormwater retention time
Feld ad�ustable we�r
Co�rosion-free const�uct�on. utiltzing no galvanized components
"Flat" flow discharge characteristics
Low flow isolation valve for maintenance or sp�ll containment
Easily i�stalls into any standard 48" or greater manhole
Standard drawings, specifications� and design program available in CA� Format
Design Guidelines available upon request
Engineering support provided by Stormwater Management's engineering staff
Reduces engineering costs
STORMWATER'�
n���,��E���r
http //www stormwebeRngt com
Typical S�or�»Gatefl''' Applicafions
StormGate"�
Storrnwater Uitimate
Collection s �Ischarge •r�
System Point
Catch Basin Pfpe
Inlet Swcture Surtace Water
Trench Dreln Water Quality InfllVation
Manhole
StormGate�" w�th a Wate� Quality Manhole
StormGate�''' Manhote
Stormwater Ult(mate
Collect(an S s S Discharge
System Point
CSF Stonr�water
Treatment SysLem
StormGate�' wlth a CSF� Stormwater Treatment System
StormGate'"' Manhole
Stormwater Ultlmate
Collectfon S Ofs�harge •r�
System Po�nt
011/Water
Separator
StormGate�" wlth a 011/Water Separator
StormGate"`'
s
y Uttimate
Discharge .r�
Poirtt
Pond or Swale INet
Structure
Stormwater
ColleoUon
System
StormGate�" wOth a Pond or Swale
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The �to�ml�il�`e�
(Formerly the CSF'� Stormwater Treatment System)
Inde end'ent
7'h�°ee Ye�r Pe�° o�mance ��S'u�zmac
l)uta C'ompiled rand Analyzed by:
j �1 en
T'he llni�ed �'�ve�°a�e �sJ'
�illsbo�°o, Ore�on
2035 N E Columbia Bivd Portland, OR 97211 •(503) 240-3393 Fax (503� 240-9553
r�
rea�'e� S�
e CS stat��'
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A„w�3'� by
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Unif�d S� D e �o�
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V
LINIFIED SEWERAGE AGENCY OF WASHINGTON COUNTY
February 1, 1994
Jaines I3. Lenhart, P.E�.
CSF Treatment Systems, Inc.
P.O. Box 19390
Portland, Oregon 97280
Dear Jim:
At your request I have prepared thi� overview of the role that the
Unified Sewerage Agency (IISA) has played in the testing of the
prototype Compost Storm Water Filter which drains 72 acres and is
located at 185th Avenue in Hillsboro, Oregon.
During the first year of the project, it was a �oint effort between
several jurisdictions. Metropolitan Service District of Portland
provided the money for the consulting services to design the filter,
oversee the project, and write the final report. Washington County
Department of Land Use and Transportation paid for the constructio,n of
the filter. USA conducted the monitoring program to determine the
effectiveness oF the Filter. During the second and third years of
operation, USA assumed all the consult�ng and monitoring costs.
My role was to design the monitoring program and coordinate the
sampling, analysis, and storage of the data in the USA data base.
USA selected, purchased, and operated the automatic storm water
samplers and �low monitors. The samples were analyzed in USA's Water
Quality Laboratory using standard environmental testi�g procedures.
The Oil and Grease tests were co�tracted to a private lab by USA.
I produced the laboratory and Flow data reports Erom the data base For
W&H Pacific. I also reviewed all reports, including the tables,
statistical analysis, and graphs, prepared by W&H Pacific before they
were published.
The data and interpretations, that have been published, accurately
reflect our current knowledge of the system.
The working relationship between W&H Pacific personnel and myself has
been very professional and we have both gained from it.
If 1 can be of further assistance, please contact me at 503-693-4493.
Sincerely,
anice K. Miller
Water Resources Analyst
/bk
155 Nonh F�rst Avenue. Su�te 270 Phone 503/648-8621
Hfltsboro, Oregon 9T124 FAX 503/640-3525
STORMWATER�'
MANAGFMFNT
Tecfinical Memorandum
BACKGROUND
This report summarizes three years of storm��ater pollutant and treatment data ta�en &om
a prototype CSF� StormK ater T�eatment S� stem.
Data v� ere f rst taken in the Fall of l 99l and are termed Winter 1991-92 results
Subsequentlti sampling as cont�nued for the Winter l 992-93. and Winter 1993-9�
Stormv►ater �n and out of the CSF� v►as sampled and tested for or�anic chemicals.
inorganlc chemlcals (hea��� metals. etc nutrients, and solids
Tributat-�, Area
A total of 74 acres dra�ns to the s�te Th�s consists of 3 9 acres of fi�►e lane artenal (S W
l85' Atie �}uch is p�ped directly to the storm outlet. and 70 acres of rnlaed res�dentia]
wbich is also intercepted b� the stonn dra�n sy stem and routed to the site
CSF'� Stormvr�ater Treatment Facilitv Sizing
The facility was sized pr�manl} on the basis of permeability tests From these tests, a
des�gn flov► rate of 2 25 gpm/ft' v�as chosen as an average flow rate for the first half hour
of flow� through a dra�ned compost bed Th�s �s equ�valent to a compost bed surface area
reqwrement of 200 ft'/cfs
For the w�estem Tualatin River Basin. �t has been found that peak design nows for the
water quality penod (May through October 1) rarely exceed 1/3 times the two-year design
storm For th�s small bas�n. using the Rational Method. the peak design flow for the test
fac�lit} was detemuned to be 6 7 cfs
The CSF� as constructed, has approximately 1,200 ft'of compost surface in a 100 foot
lon� by 2 foot w�de bed
SAMPLING AND LA.BORATORY ANALYSIS
T`hird party sampling and laboratory analysis were done by the Unified Sewerage Agency
(USA), using standard LISEPA sampling protocol The ma�ority of chemical analysis
w�ere also performed at the USA Water Qual�ty Laboratory
A sampl�ng rate of 1 per 10,000 gallons was based on rainfall of 0.2 inches and the s�ze of
the drainage area Sampling first flush and flow paced flows was accomplished using
programmable ISCO automatic samplers
Laborator�} Analvsis
Influent and effluent samples Kere collected from the automatic samplers b� techn�c�ans
of the L�SA lab follo«�ng cessation of a sampled storm e�ent
Table 1 shov�s laboraton anal� s�s procedures used for the v�ater chemistry dunn� the
third ear of this pro�ect Although essent�all� similar over the three �tear caurse of
sampling. mmor procedural modifications resulted in increased sens�tivit�• for some tests
ICP analti sis as used for the metals
RAINFALL CHARACTERISTICS AND SAMPLING DATES
Yea r 1, I 991-92
The ne�i ly constructed facilit}� was read} to recei� e stormK ater �n early August, 1991
Ho«�e4er, ra�nfall dunng the fall of 1991v�as anomalous Rainfall during the months of
August. Sept�mber and Octaber v� ere all belov� normal August 3 8%. September 99 8%0,
October �0 S% belo�t n�rmal In November ho��ever, ra�nfall amounts increased to 19
percent above nonnaJ followed by a recard drought
Table 2 shows rainfall amounts, intens�ties and storm durations for the samples taken
dunng the first year of testuig These were recorded at tbe Reedville Fire Station
continuous momtoring rain gau�e, wh�ch is located about one mile from the slte There
were two isolated small storms at tbe site on August 9 and 31, for which �nfluent and
effluent grab samples v�ere obtauned, which was not measured at tb►e Reed�rille gauge
since the gauge w as out of service on those days
A total of rune storm events were sampled dur�ng the first }�ear of testing
Yea r 2, 1992-93
Following the drought of 1991-92, the 1992-93 storm season w�as charactenzed by a
record rainfall amount Because of the sampling problems it was not }�ossible to sample
the fall period adequately. Thus sampl�ng and data analysis for the 1992-93 season
concenvated on the late v��nter and spnng penods This is useful since sampling dunng
the first year of operat�on (1991-92) concentrated on the fall storms, from wluch one
expects the hea�iest loading of pollutants With the second year of operation, vr►e now
have a good picture of how ef�ective the CSF� is at pollutant removal dunng the late
w•inter and spnng operat�on
Table 3 show�s rainfall amounts, �ntensit�es and stonn dwation for the samples taken
dur�ng the second yeaz of test�ng as recorded at the Reedville Fire Station continuous
monitoring ra�n gauge
A total of four storm e��ents «ere sampled during the second ��ear of testing
Yea r 3, 1993
Follov► �ng the drou�ht of 1991-92 and the record ra�nfall of 199?-93, the 1993-9� stonn
season sa�v a return to more nonnal conditians 7'able 4 shows rainfall amounts.
�ntens�ties and storm durat�on for the samples tal.en dunng the th�rd year of testing All
were recorded at the Reed� �Ile Fixe StaUQn Contlnuous mon�tonn� rain gauge As seen �n
Table 4. the sampl�ng per�od v� as more e� enl�� spread o��er the season than that of the
pre� ious tv►�o ears
A total of four storm events were sampled dunng the third }�ear of test�ng
Companng these rainfall data. lt can be seen thal the highest ra�nfall quantities and
intens�t�es uere seen in stonns sampled durin� the first veaz of operation
SEDIMENT BUILD-UP ON THE CSF�
Summer 1993
ln August I993, a systematized sampling of accumulated sed�ment layer v�►hich had
formed on top of the corapost bed was undertaken The results are summarued as
follow•s:
Average T6ickness Thickness Range Est"srnated Volume
Cell 1 1 271nches 0.85 to l 6 Inches l d it
Ce112 0 75 Inches 0.4 to l.5 Inches 42 ft�
Ce113 0 25 Inches 1 to U 5 Inches 16 ft
Total 7� ft3 (2.7 yds 3)
Thts does not include the addit�onat sediment v�hich had accumulated in the foreba�.
wh�ch uas estimated as an addltional l S cubic yards This matenal represents suspended
and settled solids removed b}• the CSF� due to the filvat�on action of the compost bed
Summer I994
In August 199�. sediment accumulaUon on each cell was aga�n measwed, although not as
�ntensively as dunng the previous summer ?'he results are summanaed as follows
A�•era�e Thickness Estimated Volume
Gell I 1 0 Inches l� 5 ft'
Cell 2 l� lnches 67 ft'
Cell 3 0� Inches 31 0 ft'
Total Il l ft' (�.l �ds')
S'I�OR�'�1 'R'AT�R QUALTI'� DAT.4 A1titD ANALYSLS
The data for the three year penod of tesnng are summanzed for each pollutant in tabular
form The use of autornatic samplers perm�tted the collection of an in�ba] first flush (FF)
sample and a second flow paced (FP) sample for the durat�on of the storm event
The first flush pornon of a storm event �s generally s�gnificantly higher �n chemical and
solids load,ng F�rst flush runoff represents the most cnt�cal need for storm water
treatment due to the effect of pollutant shock loadings on receiving waters Each table
(except in cases where data are limited) presenu the first flush portion undet a separate
column The flow paced poruon of a storm event exh�bits relatively low pollutant loadings
(compared to first flush), as can be seen by examining the data tables
In each table, both first flush ar�d flow paced data are also combined and weighed equally
for statisttcal putposes ur�der a third column (Me�n All Data).
For each set of data, the mean ar�d percent removal for the first flush Mean A1l Data,
and flow paced are g�ven In addition, the standard deviat�on, the 9S% confidence interval,
and the upper and lower 9S% confidence intervals are calculated for most data,
There are relanvely few set standards for storra water treatment As a gu�de to water
quality goals, Table S shows the relative concentrat��ns of inetals in water. cons�dering
both fresh and manne vmaters, for wh�ch measured acute and chron�c adverse affects are
knawn In addit�on. Table 5 gtves the EPA drink�ng water standards and Oregon
secondary standards.
A. Lab pH
T'be three year meas data for Lab pH, Sol,ds and COD are summanzed :n Table 6
Lab pH
pH was measured �n the laboratory immed�ately upon retrieval of the sa�nples Data for
Lab pH are given in Table 7 Influent mean pH was ?.6 for tbe first flush data and inean
of all data, effluent mean pH was 7.4 for the first flush data and mean of all data also.
Influent pH ranged from a low of 6 7 to a h�gh of 8 3, effluent pH ranged from a low of
�Otoahighof80
One of the potent��l advantages of the CSF �s thai the compost used has a very high
buffenng capacity in the sl�ghtly a�kaline range
B. Tu�idity, Totai Suspended Solids (TSS) and C�emical OzyEen Demand (COD)
Turb�dity, TSS and COD represent probably some of the most important perimeters �n
tegard to evaJuanng pollubon control from starm water runoff
Tu�i dity
Turbid�ty �s a measurement of the clanty or transparency of water In add�tion to so�l
parbcles, collo3dal organic matter in particutar will scatter or absorb tight and tbus prevent
its transm�ss�on, result�ng �n increased turbidity Turb�d�ty is measured in NTU units A
clear Iake, for eacample, will have a turbidtty of 20 to 25 NTU.
Turbidity dat� are given �n Table 8 and Graph 1 Mean first flush removal for tt�rb�d�ty
was 86.3 percent For the Mean All Data category, it averaged 81.7 perceni
Effluent from the CSF is invanably very clear. The only exception is follovv�ng
ma�ntenance (sediment removal and till�ng) or the �nstallat,on of new compost, when the
effluent dunng the first one to two storms wnll have a light tan color� indicative of tannin
release However, tbis qu�ckly clears up
To�l Suspended Solids ('T'SS)
Total Suspended Solids (TSS) measures those solids which can be removed by settl�ng
over an extended perlod of t�me, such as would occur in a wastewater treatment clar�fier
The environmenta] �mpaci of TSS is not only due to the solids tbemselves and their
smother�ng effect and oxygen demand, but also to the fact that the solids are act�ve
binding agents, and transport nutr�ents, heavy metals and pathogenic microorgan�sms The
primary removal mechanism for TSS is by direct filtration by the CSF
The TSS data are given in Table 9 and Graph 1 Mean first flush removal for TSS was
93.6 percent For the Mean All Data category, it aversged 91.8 percent
In wastewater treatment, secondary treatment objectives require a mear� TSS efflueni of
30 0 mg/L
C�emical OzyEen Demand (COD)
Cbemica] Oxygen Demat�d (COD) me�sures the total amount of organic matter in the
sample An acid digestion process, using a strong ox,dizing agent. is used for COD
determinat�on
The COD data are given �n Table 10 and Grapb 1 Mean first flusb removal for COD was
79.3 percent For the Mean All Data category, it averaged 70 4 percent
COD in raw mun�cipa] wastev��ater usually averages two to three t�mes measured BODS
levels COD in the effluent of secondanly treated wastewater v�nll be in the range of 70
to 90 mg2
Staadsrd Deviation/Dampening Effect Tur�idity, TSS and COD
Grapb 2 shows the calculated standard dev�ations for Turb�djty, TSS and COD based on
the data g�ven in Tables 8, 9 and 10. Standard deviat�on measures the degree to which
data tend to spread or deviate from the mean In any treatment process, the influent storm
can be ex ected to have a hi h variabil� or standard deviation, in measured
waters p g tY
values The ob�ect of a good treatment process is to reduce the effluent levels to a
consistent and reliably low value, with a low standard dev�ation This is called a
dampen�ng effect The standard deviations shown �n Graph 2 illustrate the high expected
standard dev�at�on expe�ted for influent storm r+vaters and the very good dampening
effected by the compost treatment system, evidenced by the low effluent standard
deviations This ind�cates that the system is capable of v+nthstanding high tnfluent shock
loadings while maintaining relat�vely uniform effluent treatment standards
G Total Volatile Suspended Solids, Setdeabte Solids, Tota! D�ssolved Salids, Tota!
Solids
Total Volatile Suspeaded Solids ('I'VSS)
Total Vola'le Suspended Sol�ds ('TVSS), an est�ru�ate of the organic content of the Total
Suspended Sol,ds. were determ�ned only during the first year of test�ng (1991-92} The
TVSS data are g�ven �n Table I 1 and, due to the relatively smal2 data set, only the Mean
All Data value is calculated For 1'�SS, influent averaged 39 9 t 47.4 m�/L, effluent 4 5
f 5 7 mg/L, for a 88.8 percent reducfion.
Settleable Solids (SS)
Settieable Sol�ds (SS) are measured by d�term�ning the amount of sol�d matenal which
v+nll settle out in an Ir,nhoff Cone in one hour It is a volumetnc measurement, expressed
as ml/L and sncludes sand and gnt The we�ght per volume (mg/L) �s also included in the
Total Suspended Sol�ds test
Settleable Sol�ds were measured on an �rregular ba.s�s over the three year test period, so
only the 1Viean All Data is calculated as shown in Table 12 For T'VSS, lnfluent
averaged 1 75 f 2 0 ml/L, effluent 0 09 0 02 ml/L, for a 94.7 percent reduct�on
Total Dissolved Solids (1'DS)
Total Dissolved Solids (TDS) is a measurement of the soluble salts and oiher small �on�c
spec�es present �n a water sample
In the effluent of the CSF there is a�ways a sl�ght increase in the TDS, primanly due to
the loss of l�ghter caUons, pnmar�ly Ca, K,11��1g and Na �n the ion exchange process (See
also Sect�on S 4�
1'be TDS data are given �n Table 13 Mean first flush removal (�ncrease) for TDS K•as
+22 4 perceni For the Mean All Data category, �t averaged a 36.5 percent increase
These data are a�so shown (together with TS) �n Graph 3
Thas relatively srr�all increase �n TDS does not represent an environmental problem at the
effluent levels measured For companson, Oregon Secondary Dnnking Water Standards
st�pulate a max�mum TDS of S40 mg/L for drinking water The trade-off for the retat�vely
slighi increase in TDS by the Compost Stornn Water Filter is the capture of heavy metals
from the storm water influent
Tota! Solids (TS)
Total Solids (TS) includes the Total Suspended (TSS} and Total Dissolved (T'DS) solids,
added together Tbe TS data are g�ven in Table 14 Mean first flush removal for TS was
62 S percent For the Mean Al1 Data category, it averaged 48 percent. These data are
also shown (together v�nth TDS) �n Graph 3
The relanvely low percent reduct�on in TS, desp�te very h�gh TSS removal rates, is
expla�ned by the concomitant increase �n TDS Graph 4 plots the :elanonship between
TDS and TSS tn determ�n�ng Tota] Solids removal
D. Nutrients
The nutnents tested for the three year period were Total Phosphorus, Soluble Phosphorus,
Toial K�eldahl N�trogen �'CKN), Ammon�a (NH3) and Nitrate (NO3) A summary of these
nutnent data is g�ven in Table 1 S
Fhosphotus
Phospharus was measured �n two forms Total Phosphorus (T-P) wh�ch includes both that
bound to suspended sol�ds and the soluble or ortho form, and Soluble Phosphorus (S-P),
wh�ch includes only the free ion�c (unbound) form In storm waters, most influent
phosphorus is present �n the bound form and is measured as Total Phasphorus Water
quality regulat�ons are typ�cally wntten around Total Phosphorous
Totai Phosphozus (T-P) Vs. S�Iuble Phospbornus (S-P)
The data for Total Phosphorus measurements are g�ven in Table 16 and Grraph S I�+Iean
first flush removal for T-P was 62 5 percent For the IViean All Data category, �t
averaged 48 7 percent These removal rates appear sim�lar to those recorded for
alternahve types of storm water treatment ponds, swales and sand filters
The data for Soluble Phosphorus messurements are g�ven in Table 17 and Graph S
Soluble Phosphorus showed a consistent increase in the effiuent from the CSF� v�nth
an �nfluent mean of 0 09 mglL (FF) to 0 10 mglL (Mean All Data), and an eff�uent
mean of 0 29 mg/L Thus, wh�le �nfluent S-P compnsed less than 8% of the Totel
Phosphorus in the first flush influent, �t compnsed 56% of the Total Phosphorus �n the
first flush effluent, desp�te the 57.4% overall decrease in effluent Total Phosphorus Th�s
relat�onsh�p between Tota] Phosphorus and Soluble Phosphorus, and the �ncrease �n
Soluble Phosphorus as a propornon of tbe Total Phosphorus in the effluent, is also shown
in Graph 6.
We hypothesize that as the Tota1 Phosphorus is captured by the compost bed, primanly
through filtration, Solubte Phosphorus is released (unbound) frora the captured suspended
solids through microbi�l and/or chemical action Soluble Phospborus �s an anion, and,
although the compost has a very high cation exchange capacity, it is relatively weak �n
anion exchange sites Thus, the Soluble Phosphorus "leaks" through �nto the e�'luent This
relabvely weak anion exchange capacity is also the primary cause of the increase in
effluent concentrations of mtrate nitrogen and boron (See below) CSF Treatrrient
Systems, Inc is currently work�ng on an add�tive to correct this problem
Over the three year period of these tests, there has been an increase in Total Phosphorus
removal efficiency, end a decrease �n effluent �eve�s of Soluble Phosphorus This could
be due to a build up of alvminum comp�ewng compounds in the compost bed, which will
tend to b�nd soluble forms of phosphonis
It is also importani to recognise that the total amouni of phosphorous losd�ng to recieving
water is decre,�sed by the use of a CSF
Niaogea Compounds
Nitrogen compounds tested �ncluded Total K�eldahl Nitrogen CCKN). Ammonia N��ogen
(NH3) and Ni�ate Nitrogen (NO3) The means fram tbese data are also summanzed �n
Table l S
Tota1 K�eida�il Nitrogen (TTCN) measures organic forms of n�trogen TKN was the most
common form of nitrogen at the site. The data for TKN measurements are g�ven �n Table
18 and Graph 7 Mean first flush removal for TI�N was 72 3 percent Far the Mean All
Data category, it averaged S? 4 percent
Ammonia (1vH3) 2s a problem �n storm water since it is tox�c to many forms of aquatic
l�fe It is reported to be acutety toxic tfl salmonlds in concentranons as low as 0 083
mp,/L The d�ta for NH3 measurements are grven in Tabte 19 and Graph 7. Influent
NH3 levels measured at 185th Avenue were fa�rly low, w�th the highest value recorded
as 0.28 rrig/L Meari first flush �emoval for NH3 was 64 6 percent For the Mesn All
Data category, �t averaged 59.5 percent
The data for Nitrate (NO3) measurements are given in Tabie 12 and Graph 7. Nitrate
values showed a consistent increase �n effluent levels throughout the thtee yeazs of
sa�npling NeWertheless, nitrate is n�t considered a water quality problem unless
concentrat�ons are h�gh The mean first flusb (worst case) concentrat�on for NO3 of 1 63
mg2 �s still well below the dnnking water standard of 10 mg/L (Table S)
N�trate is an an�on, and thus �s poorty reta�ned by the compost bed We think thai the
increase is due to the mi�robia] metabolism of oTganic n�trogen arid ammonia captured
by the filter, and their conversion to n�rrate which then �s released into the effluent waters
Over the three year penod of this teshng, there appears to be an increase �n nitrate release
�n the effluent, poss�bly due to the buildup and continued metabolism of other nitrogen
compounds
Tota] Nitrogen is detennlned by adding TKN, NH3 and NO3 Graph 8 shows mean Total
Nitrogen, determ�ned through addition, in the �nfluent and effluent for the first flush and
Mean All Data It also depicts the relationsh�p between the different forms of nitrogen
the decrease in T'KN and NH3 levels �n the ef�luent, and relarve increase �n NO3
E Metals
All metals were analyzed by ICP (Induct�vely Coupled Plasma) scan With the excepnon
of the exchange ions (SecUon S 5), the metals are determ�ned to the part•per-b�ll�on (ug/L)
level A summary of the metals data is given in Table 21
The metals are discussed in groups below, based on the relative concentrahon of each
metal in the storm water.
Aluminum (Al) and I�n (Fe)
Aluminurr� and Iron were present in the highest concentrat�ons While h�gh levels of
aluminum are not known to be of environmental concern, iron is known to produce
adverse chron�c effecu on fresh water organisms �n concentrat�ons as low as 1,000 ug/I.
State of Oregon Secondary Dnnking Water Standards l�mit iron to 300 ug/L.
The aluminum data are given in Table 22 and Graph 9 Mean first flush remova] for Al
was 88 2 percen! For the Mean All Data category, tit averaged 84.4 percen�
Iron was present in the highest concentrat�ons of any metal in the storm waters tested
The �ron data are given in Table 23 and Graph 9 Iviean first flush removal for Fe was
93 4 percent For the Mean All Data category, it averaged 90.6 percent
In the data for the winter of 1993, it is �nteresrng to note the except�onally high value for
iron (Fe} in the first flush pornon of the January 19, 1993 storm 130,000 uglL (Graph
I 0) Th�s storm occurred after a protracted penod of freez�ng weather and unusually heavy
snow fall in January, a per�od when the surface of the compost �r� the CSF was frozen
so�id for over a week Dunng this week preced�ng the storm event, the roads were heavily
sanded and many veh�cles used cha�ns We suspect that the high iron values are due to
the sand blasnng effect on veh�cular under as well as erosion of �ron from t�re
cha�ns This represents the h�ghest metal loading expenenced to date vv�th �he CSF
Removal of �ron dunng the first flush penod of th�s particular storm was 99 3 percent
Barium (Ba), rsanganese (lMn), Lead (Pb), Ziac (Zn)
This group was messured at tbe second highest concentrat�ons Of Ll�►e four metals, banum
and manganese are reIabvely ben�gn in regard to adverse environmental impact, although
both are Iisted on eitber the EPA Dnnk�ng Water Standards (Ba 1,000 uglL) or the
Oregon Secondary Drinking Water Standards (Mn SO mg2) The test resuits for Ba and
Mn are g�ven in Tables 24 and 25 respectively and Graph 11. Removal rates for both by
the CSF were sahsfactory.
Lead and Zinc, on the other hand, are both listed prionty pollutants. Lead has been
demonstrated to produce adverse acute effects on fresh water organisms in concentrations
as low as S3 ug/L, and chronic effects at 3.2 ug/L Z�nc �s listed as produc�ng adverse
acute effects on fresh water organ�sms �n concentrations as low �s 120 ug/L, and chronic
effects at 1IO ug/L
In the �rst year of test�ng (1991-92), no lead was detected in influent samples, an
anomaly which was quesuoned When the core samples taken during the summer of 1992
were aaaiyzed following the f rst year of opelation, increased levels of lead were detected
over background levels in the compost, indicating that lead had been present �n the
influent s�orm waters USA laboratory personnel then discovered that the re�son no lead
was found was due to a programming error in the ICP. Th:s was corrected and, during
the vv�nters of 1992-93 and I993•94, cons�derable quantit�es of lead have been detected
in the mfluent storrn waters For this reason, there are only two years of data ava�lable
for lead
The lead dat� sre g�ven sn Table 26 and Graph 11 Mean first flush reinoval for Pb was
86.4 percent For the Mean All Data category, it averaged 82,5 percent
Z�nc was present �n relat�vely h�gh concentrat�ons The �nc data are g�ven in Table 27
and Greph 1 I Mean f rst flush removal for Zn was 85 9 percent For the Mean All
Data category, it averaged 83 2 percent
Qiromium (Cr}, Cob�lt (Co), Copp►er (Gti), Nickel (hi), Vanadium
T'bis group of inetals was present an relat�vely low concentrabons Chrom�um, Copper and
Nickel are listed priority pollutants The data for tbese metals are given ln Tables 28 (Cr),
29 (Co), 30 (Cu�, 3l (Ni) and 32 (V) and Graph 12
Bomn (B�
8oron is unusual for a metal in that �t is an anion For this reason, there was an increase
in boron ;n the effluents of the CSF, tbe data for which are given in Table 33. We belzeve
that most of the �n�reased boron in the effluent is denved directly from the compost itself
Fortunatety, boron, in most localit�es� poses relahvely l�ttle environmental and/or huuian
bealth nsk The ms�n problem vhth boron is �n regard to �mgabon of boron sens�t�ve
plants, sucb as �ettuce, where �t becomes a problem at the 750 ug/L leve] for long-term
irrigation use The mean value of rivers and lakes in the US is stated (EPA) to be 0.1
mglL Sea water is reported to contain 4.S mg/L in the form of borate The m�nimum
lethal dose for m�nnows exposed to bonc acid is reported to Tange from 18,000 to 19,500
mglL, depending on the hardness of the water.
In the case of the CSF, �he h�ghest mean level of Boron was 36.0 ug/L (mean FP). The
highest one-time value recorded was I30 ug/L, dunng the second starm sampled in 1991
immediately follow�ng compleUon of construction
Me�is Below Detection limits or Estimstes.
ICP scans were also run on other metals Of these� Beryllium (Be), Thallium (TL), S�iver
{Ag), Selenium (Se), Antimony (Sb), and, dunr�g the last year, Molybdenum (Mo) were
consistently below detect�an l�m�ts
Arsen�c (As) was usually also not detected except �n S samples For these five samples,
tbe mean influent measured 8 9 ug/L f 7 4, the effluent 2 6 ugfL t 0 8, yield�ng a mean
temoval efficiency of 70.9 percent
Cadmium (Cd) was cons�stently either below detect�on limits, or aust above detection
l�mits in the estimate range The est�mate ran�e for the ICP analysis yields values with
a certa�nty of t SO%
On a theoretical basis, cadmium remova] by the CSF should be h�gh, if sufficient
quantities of cadm�um were present This has also been demonstrated by bench-scale tests
F. Cstion Fachange Ions
The compost in the CSF acts as an �on exchanger, v�nth its canon exchange capac�ty be�ng
greatest In cat�on exchange, l�ghter elements are exchanged for heavier elements, such
as heavy metals This should result �n the loss from the system of such lighter cat�ons as
calc�um (Ca}, potass�um (K), magnesium (Mg) and sodium (Na) Tables 34 (1991•92),
35 (1992-93) and 36 (1993-94) show that the measured results are consistent vv�th theory,
there be�ng a in the amounts of these l�ght elements in effluent samples It 3s �mportant
to bear in mind that the data shown in these Tab]e are in mg/L or parts per mill�on, as
opposed to the ug/L or parts per b�ll�on standard used for the heavy metals measured The
loss of these l�ghter elements dunng the exchange process is probably responsible for the
ma�or part of the increase in total d�ssolved sol�ds observed in the CSF effluent samples
(Sect�on 5 1.5)
G. Oil Grease and Petroleum Hydrocar�ons
Oil Grease samples were taken on an irregular basis. Table 37 and Graph 13 show the
results for the samples taken and analyzed Oit Grease removal averaged 80.9 percent,
Petroleum Hydrocarbon removal 84 0 perceni.
The �n�luen! values for Oil Grease are probably low due to the difficulty in obtain�ng
a properly mixed sample
There were numerous storm events dur�ng the three year penod in wh�ch heavy o�l and
grease influent loadings were v�sually apparent, v�nth no sign of sheen in the CSF effluent
H. Surge Loads
The CSF has consistently demonstrated best results under the heav�est pollutant load,n�s
To assess the relanve magnttude of these surge loads, and the treatme.nt capab�lity of the
CSF under these condibons, Table 38 was prepazed In this tabte, the h�ghest peak loading
eveni for eacb of the constituenu listed, along wYth the measured effluent data, were taken
from the 3 Year Summary Tables The percent removal foT that peak load�ng event wss
calculated For comparison purposes, the 3 Year first flush (FF) mear� for each of the
constituenis was also used These values were also depicted in Graphs 14 through 18
As cen be seen, surge laad�ngs many t�mes higher tha�n mean first flush loadtngs were
successfully handled with very h�gh removal efficienc�es This �ndicates that the CSF is
well suited for installation in more hea�•ily polluted environmenis, and could probably
handle many accidental spill candit�ons wnth a higb degree of rel�abslity
L Comparison of Mean Dam Over 7�ree Years
Table 39 sbows a year-by-year comparison of inean first flush and Mean A11 Data
�nfluent and ef�luent measurements 1'he purpose is to ascertain as to whether or not any
�mprovement and/or loss of treatment eff�c�ency has taken place over the current three
year life of the facility Although the cor�npost �n the new CeII 1, constructed during the
summer of 1992, ar�d that added to the top of Cell 3, has been in service for only two
years, the majonty of the compost at the 185th Avenue site has been in service treabng
storm water flows for a tota] of three yesrs
The Data from Table 39 are also shown in Graphs 19 through 28
In reviewing these data, �t is �mportant to look at measured effluent values, since the
percent removal value is strongly influenced by mean �nfluent load�ng rates Loading
(based on samples measured) dunng the second and third years of operat�on was not as
h�gb as during the first year of operat�on However, based on sediment accumulation rates
and ra�nfall amounts, cumulat�ve load�ngs dunng the second and th�rd years of operafion
were s�gn�f car►tly h�gher
On reviewing these data, it appears that sarr�e decrease in treatment effsciency has taken
place over the three year penod I�iean effluents for Turbidity and TSS have nsen slightly
COD bas remaaned rela�ively stable (foIlowing an improveinent �n 1992-93); while TKN
(based on absolute effluent values had improved
In al1 of the metals, there appears to be a slight decrease in removal rstes, and a
concom�tant increase in effluent vaiues. Nevertheless, metal removals are still very
sansfactory through the ihree years of operation. The decrease �n metal removal rates �s
most I�keIy due to a decrease �n the availab�lity of cation ex�hange ions, as the excbange
s�te become loaded w�th the removed metals
Total Phosphorus removal, on both an absolute (based on effluent values) and percentage
removal basis has increased over the three year period Table 40 shows mean values for
Total and Soluble Pbosphorus, shov+nng that the �mprovement in Total Phosphorus
performance is pnmanly due to greaily �mproved retenbon of Soluble Phosphorus V�'e
thsnk that this may be due to the accumularon of aluminum �ons in the compost bed
(which have been removed from the influent storm waters) and the format�on of �nsoluble
aluminurn•phosphorus complexes in the compost bed However, this is �ust a theory, due
to the cherri�cal complexity of the system, other interactions may be tak�ng place as well
and the improved removal of Soluble Phosphorus may be, and probably is, due to a
nu�nber of synergist�c events
Table 40 also shows tbat there has been an 3ncrease in N3vate levels in effluent samples
over the three year peflod Th�s snd�cates that the improvement in Soluble Phosphorus
removal �s not due to an �ncrease in anion exchange capac�ty, for such an increase would
also �mprove Nitrate removals The �ncreased effluent levels of Nitrate are probably due
to the accumulat�on of organic nitrogen spec�es, and the m�crobial metabolism of these
compounds
Connparison to Recieving V�'at�rs
On October 22, 1991, personnel of the USA lab took a grab sample from Beaverton Creek
at the start of a 0 6 inch storm, and analyzed the samples The sampling site was upstream
of the compost storm water treatment site discharge Beaverton Creek is the receiving
water for the compost flter effluent These data provide an intereshng companson of the
pollutant levels of the treated effluent from the compost storm water filter, v�nth those
levels in the creek These data are g�ven �n Table 41, �nd compared graphically in Graphs
h nfluent and the 1991 mean in�luent data
29 to 31 Both tlie November 1991 first fl us
at the treatment facility site are used for comparison of potential levels of untreated storm
water discharge into tbe creek The 1991 mean effluent levels from the treatment facility
are used to show treatment results
Both mean total suspended solids and total volat�le suspended sol�ds from the ireatment
facility were lower than values �n the receiving waters Nutnents were generally higher,
with the exception of N�trate� but nevertheless s�gn�ficantly lower than the raw storm
water pnor to treatment S�nce 1991, effluent levels of Nitrate have increased For metals,
Zinc and Banum showed the best results, effluent levels from the composi treatment being
lower than those in the rece�ving water Other heavy metals, panc�ularly Cobalt,
Chrom�wn, Copper, and Nickel, were not sign�ficantly higher than those levels found �n
the creek waters The one problem was Boron, wh�ch increased in concentration as a
result of treatment, probably due to anion exchange losses However, the levels of Boron
encountered do not pose an env�ronmental problem
K. Bacteria and Floatables
('I�ese d�►ta from the f�cility durinE the first yesr of operation)
Bacteria
It was �ntended to sample and analyze for potential pathogens, panc�ularly fecal
coliforms and Enterococcus To obta�n reliable samples for this purpose. �t was necessary
to obta�n fresh grab samples dur�ng a storm event, usmg stenlized containers Because of
timing and logisnc problems, it was not poss�ble to obtain these samples.
Removal of bacteria and other m�croorganisms is generally directly related to Total
Suspended Solids (TSS) removal rates, since the majonty of m�croorganisms are attached
directly to sol�ds The h�gh TSS removal efficsencies obtained by the CSF would
indirectly suggest correspondingly high m�crobial remova] rates
F1os�bles
Although not sampled quan�tat�vely, visual observat�on showed large quant�t�es of
floatables entenng w�th the influent storm w�ater Items included oil, containers, cigatette
filters, leaves, wood debns and m�scellaneous plast�cs NormaJly many of these items
would float over the surface of a treatment pond or swale and into the rece�ving water
If the compost treatment facil�ty �s des�gned vv�th scum baffles all of these �tems v�nll be
captured on the surface of the compost bed Current des�gn standazds �nclude the
installation of a series of scum baffles to ensure h�gh removal effic�enc�es for floatables,
including al grease
Acla�ow�ledgments
We thank the Un�fied Sewerage Agency for their cont�nued cooperat�on and �nterest �n
the testing of tlse CSF at lSSth Avenue �n �Lllsboro Parncular thanks are due to John
Jackson, Director of Plann�ng, Jan 1Viiller, Water Resources Analyst, Jan W�lson,
Superv�sor of the USA Water Quality Laboratory, and the laboratory and field operat�ons
staff
We also v+nsh to thank R�ck Raetz, P.E and t}�e Washington County Deparhnent of Land
Use and Transportat�on for their continued interest and cooperat�on in the CSF pro�ect
TA6 LE 1 CSF Treatrnent Systems, lnc
91419�4
Laboratory Anarysis Procedures
MIN. REPORT
ANALYSlS UNRS REFERENCE EDR10N PROCEDURE LIMiT (MRL�
Turbtdrty NTU Std Met�ds 1Bth 2130 01
Condu�bvrty Lab umhalcm Std Methcds t8th 2510 01
COD (Chem�cal Oxygen Oemand) mgA EPA Rev 83 410 4 5 9
pH Lab pH Std Meth�ds 18th 4500•H 01
TS (Tota! Sol�ds� mgA Std Methods 18ih 2540-8 2 0
TDS (Totaf D�ssolved Sol�ds) mgll Caicufabon 01
TSS (Total Suspenaed Sofids� mgll Std Metho�s 18th 2540-D 0 2
TVSS (Total Volat�le Suspended Sobds} mgA Std Metho�s 16th 209D 0 2
SS (Settleable Sol�ds) mVi Std Methods 16th Z09E 01
NH3•N (Ammorna) mg� Std Methads 1�th 45D0-NH3•H 0 025
TKN (Total �eldahl �Orgatuc) Nit►ogen) mgli EPA Rev 83 351 2 0 025
NO2NO3-N (N��de-N�trate N�Vogenj mgll Std Met�ads 17th 4540•Na3-F 0 01
T-PO4 P(Total Phosphorus) my9 EPA Rev 83 3�5 4 0 025
S-0PO4-P (Soluble or Ortho Phosphorus) mgll Std Methods 17th 4504-P F 0 025
Ca (Calaum) mgA EPA Rev 83 Z�0 7 141
Mg (Magr�es�um) mgll EPA Rev 83 ZOQ 7 0 05
Na (Sodium� mgA EPA Rev 83 2�fl 7 0 03
K(Potassium) mgA EPA Rev 83 200 7 1 2
Ci (Chlor�de� mgll EPA Rev 83 352 2 0 25
As tArsen�c) ug�l EPA Rev 83 20& 3 25 8
Ba (Bar�um) �oll EPA Rev 63 200 7 0 5
9e (8ery�ihum) ug�l EPA Rev 63 200.7 0 a
B(Boron) ug/1 EPA Rev 83 200 7 11 8
Cd (Cadm�um� ugll EPA Rev 83 200 7 2.8
Cr (Chromium) ugll EPA Rev 83 200 7 4 0
Co (Cobalt) ugll EPA Rev 83 200 7 3 8
Cu (Copper) �gtl EPA Rev 83 20U 7 4 4
Fe (Iron) ug�! EPA Rev 83 200 7 3 5
Pb (Lead) u�ll EPA Rev 83 200 7 3 3
Mn (Manganese) ugll EPA Rev 83 200 7 3 2
N� (N�ckel) uglt EPA Aev 83 200 7 7 3
Ag (S�iver) ugll EPA Rev 83 200 7 6 3
v(Vanad�um) ugll EPA Rev 83 200 7 a.7
Zn (Z�nc) ugll EPA Rev 83 200 7 14
Sb �Antimony� ugll EPA Rev 83 240 7 27
AI (Aluminum� u�ll EPA Rev 83 200 7 44 2
Se (Selen,um) u�ll EPA Rev 83 Z00 7 4, 4
TI (Thail�um) ug�l EPA Rev 83 200 7 34 8
Hg (Mercury) ug�l EPA Rev 83 2451 0 05
0� 8 Grease mg11 EPA Rev 83 IR 4132 0 5
Pet Hydro (Petroleum Hydrocarbonsj mgA EPA Rev 83 IR 4181 0 5
Ref USA Laboratory
TABLE 2 CSF Treatmem Systems �nc
Compost Storm Water Filter (CS�T""� -185th Avenue
Rainfall Data Storm Events Sampled Winter 1991-92
Date of Previous Total Storm Max�mum/ Storm
Storm Event 72 Hours in Rainfail n. Hou► i�n Dur�tion (hrs.�
819191
8131191
1 10/22i91 0 000 0 600 0160 8
2� 0�2�� oeo a�a o� �z
3 10J28191 0.537 0 599 0124 10
4 11/12�91 0 512 0 317 Q 099 5
5 11/13/91 0 916 0 630 0 256 15
6 11/15191 1 167 0 897 0199 14
7 ����9r9� 2 7�2 376 0 218 2a
I
Rainfall Data 1991-92
1 600 T
1 400 T
i 1 200 s
I
1 000
H
d i
0.800 T
c
0 fi 0 0
0.400
0 200
-i- -f- --r- �-rl
1 2 3 4 5 6 7
Storm Event
TABLE 3 CSf Treatmem Systems. Inc
Compost Storm Water Fi ter (CSFT"") -185th Avenue
Rainfall Data Storm Events Sampled Winter 1992-93
Date ot Prewous Totai Storm Manimunv Storm
Storm Event T2 Hours n. Reunfall n. Hour �n. Dura�on (hrs.�
1 1J19193 0 032 0 736 0 072 18
2 2120193 0176 0 352 0 072 12
3 3/1/93 0 0 0 552 0128 10
4 3/14193 0 024 0168 0 056 22
�M
Rainfall Data 1992-93
oe- I
o�
0 6
05
N
C� 0 4 I I
C l
r r
03
0 2
01
p
1 2 3 4
Storm Event
TABLE 4 CSF Treatmem Systems, Inc
Compost Storm Water Fiiter (CSFT"") -185th Avenue
Rainfall Data Storm Events Sampled -1993-94
Date oi Previous Total Storm MaxirnurtV Storm
Storm Event T2 Hours n. Ra�nfall i�n Hour n. Duration (�rs.�
0030 0�92 oi� 7
2 11/301'93 0 4�5 0 376 0 088 9
3 t ti30193 0.0 0 368 0 056 i 2
4 211194 0 016 0 328 0 072 12
Rainfall Data 1993-94
04
i
0 3 5
03,
I
A
0 25 R
N
d
r 02
i
c
0 15 1
0.1
0 05 i
0
2 3 4
Storm Event
TABLE 5 CSF Treatmern Systems
914194
CQIYIpOSt StOI Wate� Fllter �CSF
Water Quality Criteria (EPA 44015•86-001 j
F�esh Waters Ma�ine Waters Prionty EPA Drinking Oregon Seco�dary
Acute Chronis Acute Ch�onic Poilutant Ca�inogen Water Drinking Water
Meials (u�l u�l u�lla mq►L (uglLl mgll. (u9l�)
Antimorry (Sb) 9,Q00 0 1,6�0 0 Y N
Arsenic �As) Y Y 0 OS (50 O)
Arsenic (As) Pent 850 0 48 0 2,319 0 13 0 Y Y
Arsenic �Asl T�I. 360 0 190 0 69 0 36 0 Y Y
8arium (Ba) N N 10 (100a 0�
8eryllium (Be) 130 0 5 3 Y Y 0 01(10 0�
Cadmium �Cd) 3 9 t 1 43 0 9 3 Y N 0 05 (54 0)
Chtoride 8&0 0 230 0 N N
Chromwm (C�j Hex. 16 0 11,0 1 1 50 0 Y N 0 OS (50 0)
Chromium (Cr) T�. 1.740 0 214 0 10.300 0 N N 0 05 (50 Oj
Copper (Cu) 18 0 12 0 2.9 2 9 Y N 13 (1,300 0)'
Ct�anide (Cn� 22 0 5 2 10 10 Y N
iron (Fej t,000 0 N N 0 3(3a0 0)
leed (Pb) 82 0 3 2 1A0 0 5 6 Y N 0 015 (15 Oj'
Manpanese (Mn) N N 0 05 (50 0)
Me�cu H 2 4 0 012 2.1 0 025 Y N 0 002 (2 01
Nickel (Ni� 1,400 0 160 0 75 0 8 3 Y N
Selernum (Se) 2S0 0 35 0 410 0 54 0 Y N 0 Ot (10 0�
Silver (Ag) 4 t 01 2 3 Y N 0 05 (50 0�
Thalfium fTr� 1,400 0 40 0 2.130 0 Y N
Iinc (Zn) 120.0 110 0 95 0 86 0 Y N 5 0(5,00� 0)
Additional Criteria
pH 60-90
Totat Dissotved Solids (TDS� 500 mg�l
Nitrate Nitro�en (NO3� N N 10 mqlL
Acbon Level
TAB LE 6 CSF Treatment Systems
9/3194
Compost Storm Water Filter (CSFT"'�
3 Year Data Summary -185th Avenue
Mean Data Summary Lab pH, Solids COD
Frst Flush (FF1 Mean Mean Ail Data' I Mean
Influent Effluent Rercent Influent Efiluent Percent
(mo�L1 (m I� Removal m �L (mq/t) Remcval
Lab pH �_pH unitsj 7.6 7 4 NA 7.6 7 4 NA
Standard Oev�at�on 0 4 0 2 0 4 0 2
Turbidity (-NTU urnis) t43.9 19 7 86.396 923 16.9 81.7°�
Standard Dev�t�on t t 6 4 11 7 102 0 9 8
Total Suspended Solids (TSS) 380.3 24.5 93.6°�b 225 9 18.5 91.8°,b
Standard Dev�at�on 420 6 16 0 324 5 13 9
Chemical Oxy�en Demand (C00� 211.1 43.T 79.3°,6 137.9 40 8 70 4°b
Standard Dev�at�an 59 9 t 9 0 S 32 8 20 6
Total Volat�le Suspended Solids (TVSS)' 39.9 4 5 88.8°�6
St�andard Dev�atian 47 4 5 7
Settleabie Solids (SS mllL units) 1.75 0 09 94 7°�6
Standard Dev�at�an 2 00 0 02
Total D�ssolved Sol�ds (TDS� 139 0 1701 t22 4°�6 111.7 1525 +36 5°�
Standard Dev�at�on 63 3 57 2 56 3 62 6
Total Sol�ds (TS) 519.3 194.5 625°�b 337.5 173.1 48.7°�
Standard Dev,al�or� 412 8 62 7 333 4 69 3
FF F�rst Flush �Time Paced) Mean All Data First Flush Flow Paoed Data We�ghed Equally
FP Flow Paced
One Year Data Only NA Not Appl�cable
TAB LE 7 CSF TreatmeM Systems, Inc
913194
Compost Storm Water Filter (CSFT"')
3 Year Data Summary 185#h Avenue Lab pH (pH)
First Flush Mean At! Oata' N Flow-Paced
Storm Event Influent EfflueM Storm Ev�nt iMiuent Effluent Storm Event Influent ERiuent
pate m rL Dete m/L Date m 1� (m!
10122-9t-G 819/91 •G Bl9191-G
t0/25l91-FF 6 7 7 3 8/31191•G 8131/91-G
10/28r91-FF 71 7 2 10/22•9i -G 10122191-FP 7 3 7 5
111�2191•FF 7 6 7 5 10lZ?191-FP 7 3 7 5 t0/25��1•FP 71 13
11/13/91 •FF 7 6 13 10/25/91 •�F 6 7 7 3 10128l91-FP 7 3 7 5
i���9�9�-FF 7 7 7 a i0J25�9�-FP 71 7 3 1�it3191-FP T 2 a
t�19,�93-FF 7 8 7 fi t0128 7 t 7 2 11115/91-FP
2J20/93•FF 17 7 5 10128l91-FP 7 3 15 1l19193-FP 7 7 7 7
3,�14193-FF 81 7 5 11�12191•FF 7 6 7 5 ZJ20/93•FP 7 9 7 7
11i21193•FF 7 6 7 0 11/13/91-FF 7 6 7 3 3/1193•FP 7 6 7 5
11�30►93•FF 8 3 7 5 11/13191-FP 7 2 7 4 3I14l93-FP 7 8 8 0
2113�94•FF 7 8 7 3 11/15I�1-FP 11130/93-FP 7 4 7 2
j» 9f9� -FF 7 7 7� 12�30/93-FP 7 5 7 a
1/19�93-FF 7 8 7 6 2113194-FP 7 7 7 5
1/19193-FP 7 7 7 7
2'201�3-FF 7 7 7 5
Z120l93-�P 7 9 7 7
3r��s3-FP s 7 5
3�14/93•FF 61 7 5
3rt4193-FP 7 8 8 0
11121/9�-FF 7 fi 7 0
t 1t30�93•FF 8 3 7 5
1 ti130193-FP 4 7 2
12'30193-FP 7 5 7 4
2l� 3�9�4-FF T 6 7 3
2l13l94•FP 7 7 7 5
I 7 T4 ?.5 TS
Mean_ 7 6 7 4 6
Mean Removal NA NA NA
Std Dev= 04 02 04 02 03 02
Max�mum= 8 3 16 8 3 8 0 7 9 8 0
Mmimum= 67 70 67 70 71 72
N= 11 11 22 22 11 11
FF First Fiush (T�me Paced) Meart All Data Firsl Flush 8 Flow Paced Data We�ghed Eq�al�y
FP Flow Paced
91ank Csll Analys�s Not Pertormed NA Not Appl�cabfe
TABLE 8 CSF Treatment Systems �nc
8��30r9a
Compost Storm Water Filter (CSFT"")
3 Year Data Summary -185th Avenue Turbidity
First Flush 4FF) Mean All Data' Flow�Paced (FP#
Storm Event Infiuent Effiuent Storm Event influent Elfluent Storm Event Influent Effluent
Dete �NTU} (NTU� Date �NTU) (NTU) Dat� �NTU) (NTU�
10122-9t-G 81�191-G 819191-G
10125+91-FF 42 QO 33 00 8t31/91-G 8l31 /91 •G
10128�91-FF 810 5 50 10J22•9t -G 10l22191-FP 120 00 20 00
t t 11219i -FF 350.00 8 00 10/2?191-FP 120 00 20 00 10l25/91 •FP 17 00 8 00
11113�91-FF 300 00 36 00 10125��91 •FF 42 00 33 00 101?8l91-FP 810 5 40
11 I1919 �-FF 1 t 0 00 6 00 10/25.�91-FP 17 00 8 00 11113191-FP 34 00 N 00
1/19/93-FF 150 00 17 00 10/28�91 •FF 810 5 50 11/15/91-FP 18 00 1100
2120j93•F� 10/28191-FP 810 5 40 1/19l93-FP 39 00 18 00
3114193-FF 8100 17 00 11/1 ?191 •FF 350 00 8 00 2/20/93•FP
11/21/93-FF 84 00 26 00 11/13/91 •FF 300 04 36 00 3/t193•FP
11/30193-FF 250 00 33 00 11l13�91-FP 34 00 26 00 3/14/93 FP 26 00 12 00
2d13/94•FF 64 00 15 00 11/15191-FP 16 00 1100 11l30193•FP 19 OQ 15 00
11119191-FF 110 00 6 DO 12130193-FP
1/19/93-FF 150 00 17 QO 2d13/94•FP 34 00 6 50
1119693-FP 39.Q0 18 00
2120�93•FF
2120/93-FP
311193-FP
3114/93 FF 81 00 17 00
3114/93-FP 26 0� 12 40
11l21193-FF 84 00 26 0�
11/30193-FF 250 00 33 00
11/30/93-FP 19 04 15 00
12130/93-FP
?�13�9�4•FF 64 Ofl 15 00
2113/94-FP 34 00 8 50
Mean_ 143.9 19 7 92.3 16.9 35.0 13.8
Mean Rernoval 86 396 81.7°b 60 T°b
Std Dev.� 116 4 117 102 0 9.8 33 4 6 6
95� Conf. Int= 722 7 2 45 8 4 4 218 4 3
Upper 95°A In�= 2161 2� 9 136 2 213 56 8 18
Lower 9596 Int.= 717 12 4 46 5 12 4 13 2 9 4
Maximum= 350 0 36 0 350 0 36 0 120 0 26 0
M�nimum= 81 5 5 61 5 4 81 5 4
N= 10 10 19 19 9 9
F= F�rst Flush �T�me Paced) Mean Ail Oata First Flush Flow Pace� Da1a We�ghed Eqvally
FP Flow Paced
8lank Ce11= Ana�ys�s Not Periormed
TAB L E 9 CSF Treatmer�t Systems
�o��a
Compost Storm Water Fiiter �CSFT"')
3 Year Data Summary 185th Avenue Total Suspended Sotids (TSS)
First Flush (FFl Mean All Da�' I Flow•Pac�d (FP1 i
Storm Event Influent E#fluent Stotm Event Influetri Effiuent Storm Event Influent Effluent
Date m�L Dete m!L �m,� Cate �,m l� (m�
t O/22-91-G 522 00 95 00 819191-G 54 60 3 70 8191'91-� 54 fi0 310
10�25/91 •FF 961 Q 20 90 8f31191-G 38 70 12.60 8131/91-G 38 70 12 60
10128l91 •FF 56 90 24 20 10122•91 •G 522 00 35 00 10122191 •FP 451.0� 28 70
11/12e'91 FF 330 00 2 30 10!22l91 •FP 4310Q 70 10i25/91 •FP 46 40 7 00
11t13/91-FF 1610 00 3120 1a12�191-FF 9610 Z� 90 10128I91•FP 24 50 170
11/19�91 •FF 156 00 2 30 10125191-FP 46 40 7 00 111131�1-FP 15100 13 00
1/19193-FF 292 00 12 80 10/26/91-FF 56 90 24 20 11115/91-FP 38 20 4 20
?12�f93-FF 76 00 a0 �Or28r9�•FP 2a 50 y 70 ���9193•FP 98 00 13 20
3�1a�93 FF a36 00 ap 00 1�i�219�-FF 330 00 2 30 2l2or93-FP 27 20 8 80
11�21/93 FF 34S 00 58 54 11113/91 •FF 1610 00 31 20 3/1193•FP 54 00 8.00
11f30j93-FF 520 0� 2Q 4U 11113l91-FP 151 00 13 00 3/14193-FP 66 00 2100
2113194•FF 163 Qa 30 00 11115/9t•FP 38 20 4 20 11l30193•FP 59 00 9 80
11119,�91-FF 156 00 2 30 12l30193•FP 82 00 36 00
1l19193-FF 292 00 12 84 2113194•FP 118 00 20 04
1H9/93•FP 98 00 13 20
?J20193-FF 76 00 16 40
2/20l'93•FP 27 20 8 80
3l1 �93-FP 54 00 8 00
3Pt4/93-FF 436 00 40 00
3!14193•FP 66 00 2100
11/2il93 FF 306 00 58 50
11l30/93•FF 520 00 20 40
11i30/93-FP 59 00 9 80
12/34l93•�P 820Q 36 00
?�13/94 163 00 30 00
Z11319�4-FP 118 00 24 00
1
Mean_ 380 3 24.5 225 9 18.5 93.5 13.a
Mean °�b Removal 93 6°� 91.8°� 8S 796
Std Dev.= 42D 6 16 0 324 5 13 9 109 0 9 9
95°� Cont. Int= 238 0 9 0 124 7 5 4 571 5 2
Upper 95� Int.= 618 3 33 5 350 6 23 9 150 5 18 6
Lower 95� Int 142 3 15 5 1011 13 2 36 4 8 2
M�ximum= 1fi10 0 58 5 1610 0 58 5 4510 36 0
Mmimum= 56 9 2 3 24 5 17 24 5 17
N= 12 12 26 28 14 14
FF F�rst Flush ��me Paced) Mean Ail Data First Flush 8 Flow Paced Data We�ghed Equatly
FP Flow Paced
TABLE 10 CSFTreatment Systems
ar�ors�a
Compost Storm Water Filter (CSFT"')
3 Year Data Summary -165th Avenue Chemical Oxygen Demand (COD)
Frst Flush (FFl Mean All Dat� N FlovwPaced (FP#
Storm Event Influent Eifluent Storm Event Iniiuent Effluent Storm Event IMiuent ENtuent
Date �mg� m tl Date �m I�L �mglL) Date f_ m 1L�
10/22•91-G 180 00 80 00 819191-G 175 00 55 00 8/9/91-G 173 00 55 00
10125/91 •FF 105 00 68 00 &'31191-G 80 40 64 00 8l31/91-G 80 40 64 OQ
1 Of26l91-FF 44 00 40 00 10/22-91 •G 180 00 80 QD 10l�?191-FP 12T 00 96 50
11l12191 •FF 150 00 32 00 10/2?�91-FP 127 00 96 50 10J25191-FP 66 00 310�
11/13191-FF 644 00 46 p0 10/25/91 •FF 105 00 68 00 10128/91-FP 3200 26 00
1 il19�91 •FF 210 00 27 00 10/25/9i-FP 66 00 3100 11/t3l91-FP 54 00 29 00
�119�93-FF 17a 00 37 00 �0l28��•FF a4 00 a0 Ofl 11/15r9�-FP 64 00 a5 �0
2�20�93•FF 55 30 2a 10 10�28r9� -FP 32 00 2� 00 �119/93-FP 52 Oa 3 00
3�1a193•FF 2a6 00 24 00 ��1�2�9�•FF �50 00 32 Oa Z120193•FP
11f21193-FF 222 00 62 30 11/13191•FF fi44 00 46 00 3/1193•FP 3910 27 00
11130/93•FF 35100 5fi 90 11113/9t-FP 54 00 29 00 3114193-FP 57 60 22.80
2/13/94-FF 152 00 2710 11/t 5�91 •FP 64 00 45 60 11/30193•FP 52 00 34 50
11119'91•FF 21� OU 27 00 12/30193-FP 57 80 26 30
1r19193•FF 17a o0 37 00 2113r94-FP 57 2� 2a 90
1119/93-FP 52 00 13 00
2�20�93-FF 55 30 2a 10
21201�3-FP
3/1/93-FP 3910 27 00
3/14!93-FF 246 00 24 00
3�14193 FP 57 60 z2 80
t 1/21l93-FF 222.00 62 30
11/30193•FF 35100 56 90
t r30�93-FP 52 00 34 50
12/30/93 FP 57 80 26 30
?113f94-FF 152 00 2710
2113/94-FP 57 2Q 24 90
Mean_ 2111 43 7 137.9 40 8 70.3 36.1
Mean °�6 Removal 79.3°,6 70.4°�6 45 8°b
Std. Dev.= 159 9 19 0 132 8 20 6 38 9 22 4
95°b CoM Int= 90 5 10 7 52 t 81 21 2 12.2
Upper 95� InG= 30t 6 54 4 190 0 48 9 9t 5 50 3
Lower 95�6 int 120 6 33 0 85 8 32+7 491 2b 0
Max�mum= 644 0 80 0 644 0 96 5 175 0 96 5
Mirnmum= 44 0 24 0 32 0 13 0 32 0 13 0
N= 12 12 25 25 13 13
FF First Flush (Time Paced) Mean All Data F�rst Flush Flow Paced Data We�ghed Equally
FP Ftow Paced
Bfank Cell Ana�ys�s Not Periormed
G ra h 1 CSF Treatme� Systems, Inc
p 9,�4
CSF 3 Year Data Summary
Turbidjty, Total Suspended Solids �TSS) Chemicai Oxygen Demand (COD)
400
350 Intluent
300 Effluent
250
mg/L
TSS GOD
NTU 200
(Turbrdity)
150
100 i,
50
Turb TSS COD Turb TSS COD
Mean First Mean All Data
Flush Data Weighed Equaily
G ra h� CSF Treatment Sysiems, Inc
p 9,?J9d
CSF 3 Year Data Summary
Standard Deviation Turbidity, TSS COD
450
400 Infiuent
350
Effluent
300
mg/L 250
(TSS 8 COD)
NTU 200
(Turb�dity)
150
100
50
Turb TSS COD Turb TSS COD
Mean First Mean All Data
Flush Data Weighed Equally
�r r
TABLE 11 CSF Treatment Sysiems, inc
Compost Storm Water Fi ter (CSFT'"�
3 Year Data Summary -185th Avenue
Total Voiatile Suspended Solids (TVSS)
Total Votat�le Sus�ended Solids (TVSS)
Storm Event Irniuent Eftluent Percent
Date (mNL1 (mQiL1 Removal
8�9�91 •G
Bt31/91 •G 1 29 105 t 8 G°!o
10122 •91-G 61 50 5 87 90 5%
t 0122i�1-FP 48 0� 6 40 66 7°�
10125191-FF 2b 10 3 60 86 2%
10/25/91-FP 7 20 176 75 6%
101�191-FF 8 00 20 9fl +161 3%
14128/91 •FP 5 66 1 QO 83 0°!0
11112/91 •FF 72 30 1 14 98 4%
11113191-FF 170 OU 6 8� 96 Q°k
1� P13l91-FP 21 50 3 52 83 6%
1 111 5191-FP 9 60 132 86 3%
11 19191-F� 48 00 0 24 99 5 �o
Mean_ 39 9 4.5
Mean °ro Removal 88 8°�b
Std Dev 47 4 5 7
95°ro Cont Int_ 26 8 3 2
Upper 95°�6 Int� 66 8 7 7
lowet 95°�6 Int 131 13
Maximum= 170 0 20 9
Mmimum= 13 0 2
N= 12 12
FF First Flush (T�me Pace�)
FP II Flow Paced
Blank Cell Analys�s Not Perlortned
TABLE 12 CsF Treatmer� Systems, �nc
913194
Compost Storm Water Filter (CSFT"'�
3 Yesr Data Summary -185th Avenue
Settleable Solids (SS)
Settleable Solids (SS)
Storm Event Influent Etfluent Percent
Date (mllll ImilL) Removal
10l2219t -FP 3 00 c010 96 7%
10f25�91 •FP 160 c010 93 8°�
10128t91-FP 190 c010 94 7°!0
11t13191 •FF 150 c010 98 7%
11/13191-FP 0 70 c010 85 7%
11i15/�1 •FP 0 40 �010 75 0°�6
11119/91-FF 0 50 c010 80 0°l0
1119193•FP 0 60 <010 83 3°�6
3114/93-FF 1 50 c010 93 3°l0
11130193-FP 2.00 c0 05 97 5%
11130J93-FF 0 20 c0 05 75 0%
2113194•FF 1 13 012 89 4%
Mean_ 1.75 0.09
Mean °ro Removal 94.7°�6
Std Dev.: 2 0 0 02
95°� CoM Int= 1 1 0 01
Upper 9596 Int 2 9 011
Lower 95°� InL- 0 6 0 08
Maximum� 7 5 012
Mmimum= 0 2 0 OS
N: 12 12
FF Frst Flush (Time Paced)
FP Flow Paced
c= Betow Detecbon �m�t Detechon L,m�t Dunng 1991 Was 01 mVL, Detect�on �md
Improved To 0 05 ml/l In 1993
TA6 L E 13 CSF Treatment Systems
9131'9�4
Compost Storm Water Filter (CSFT""�
3 Year Data Summary -165th Avenue Total Dissotved Sofids (TDS)
First Flush 4FFl Mean AA Data• Row•Paced fFP)
Siorm Event ir�fluent Effluent Sfiorm Event Influent Efttuent Storm Event Influent EHluent
Date m/L (m� Oete m!L (m� Date �m /Ll m IL
10/22•91-G 3S 00 144 00 819191-G t85 00 202 819l91-G t 85 00 202 00
10/25.�1-FF 114 00 219 00 8/31191 •G 10140 247 00 8/31191-G 107 00 247 00
10/?$��91•FF 63 00 144 00 10/22-9�-G 38 00 144 00 10I22l91-FP 95 Oa 163 Ofl
11/12I91 •FF 2G6 00 106 00 10127191-FP 95 00 163 00 i 0125l91-FP 56 Oa 8100
t r� 3�9� FF 10 00 3� 00 10/25.�91-FF a o0 2� 9 00 10r�91 •FP 58 00 76 00
11119�� -FF 134 Oa 98 00 10/25191-FP 56 00 8100 11113/91 •FP 8100 107 00
1/t9�93-FF 196 Ofl 243 00 10/2�91 •FF 63.00 144 00 11/15�91-FP 98 0� 116 00
�.�20193-FF 194 00 �0 00 10128�91 •FP 58 Oa 76 00 1119193 FP 44 OD 83.00
3�14I�3-FF i 10 00 242 Oa 11l12191-FF 266 00 106 00 ?�20193•FP 139 00 145 00
11�21/93 FF 118 00 184 00 11/13l�1-FF 110 00 13100 311193-FP 80 0� 106 00
11130193 FF 132.00 144 OD 11l13194-FP 6100 107 00 3/14/�3-FP 102 00 195 0�
2�13l9�-FF 193 00 126 Oa 11J15.�1-FP 98 00 116.00 11/30/�3•FP 63 00 78 Qa
11 J19191 •FF 134 00 98 00 12l30193•FP 60 00 66 Oa
1l19/93•FF 196 00 243 00 2113l�-FP 68 00 256 OD
1119f93•FP 44 00 83 00
2120193 FF 194 0� 260 00
2120�93-FP 139 00 145 00
3/1193•FP 80 0� 106 00
3/14193-FF 110 QU 242 00
3n a�93•FP 02 0� 195 00
11/21l93•FF 118 Oa 184 00
11l30i93-FF 132 Oa 144 00
11130�93•FP 63 00 18 00
12130l93-FP 60 Ofl 6S Oa
2�13�'94•FF 193 00 126 04
2l13/94-FP 68 00 256 00
Mean_ 139 0 1701 1117 152.5 88.3 137 4
Mean Removal +22.4°,6 +36.5� ♦S5 6°�b
Std. Dev: 63 3 57 2 56 3 62 6 37 7 65 0
95°�b Conf. int= 35 6 32 4 216 24 0 �9 8 341
Upper 95� Int: 174 8 202 4 133.3 176 5 108.0 1714
Lower 95°�6 in�- 103 2 137 7 901 128 4 68 5 103 3
Maximum:. 266 0 260 0 2fi6 0 264 0 185 0 256 0
Mimmurt►� 38 0 98 0 38 0 66 0 44 0 66 0
N= 12 12 26 ZG 14 14
FF Frst Flush (Time Paced) Mean All Data F�rs1 Flush 8 Flow Paced Data We�ghed Equally
FP F1cw Paced
Blank Cell Analys�s Not Periormed
TQBLE 14 CSF Treatmern Systems ��z
9f3194
Compost Storm INater Filter (CSFT'"}
3 Year Data Summary 185th Avenue Totai Sotids (TS)
First Flush �,FF� Mean All Data' Flcw�Paced �FPI
Storm Event Influent Effiuent Stcrm Event influent Effluent Storm Event Influent Efiluent
Dete m IL (m� Date (m� Oate m L (m�
10/22-91 •G 5fi0 00 180 00 8/9�91 •G 2d0 QO 260 00 8/9191-G 240 OD 26Q 00
10125l91-FF 210 00 240 00 8�31191-G 146.00 260 00 6l3i 191-G 146 00 260 00
10l28l91 •FF 120 00 168 00 10/22•91-G 560 00 180 00 10/22l91 •FP 546 00 192 Oa
1111?J91-FF 596 00 1Q8 00 10122�91-FP 54S 00 192 10125l91-FP 102 00 88 00
��r13�9� -FF 1720.00 162 00 0�25�91 •FF 210 00 2a0 00 0128�9� -FF 82 00 80 00
11�19191-FF 29� 00 100 00 10/25191-FP 102 00 88 Ofl 11113/91 •FP 232 00 120 00
1/79193-FF 488 00 256 00 10lZ8191-FF 120 Oa /68 00 11/15�191-FP 136 00 120 00
212a/93 FF 270 00 276 Oa 10/2819t-FP 82 QO 80 Oa 1/19193-FP 142 00 96 00
3r14193•FF 546 00 282 00 11/12J91-FF 59fi 00 108 00 ?l20193-FP 166 �0 154 00
i 1�21/93-FF a24 00 2a2 00 11/13r91-FF 1720 00 162 00 3�1193-FP 134 DO 1 a.00
11 /30193• FF 652 00 164 00 11/13/91 •FP 232 00 1 ZO 00 3�14193-FP 168 00 216 00
2J� 3�94 FF 356 00 156 00 1 t� 519� -FP 136 40 20 00 1 �130f99•FP 22 00 88 00
11I19/91-FF 290 00 100 00 12130/93•FP 142 00 102 00
1119/93-FF 488 00 256 00 2�131�4-FP 186 00 276 00
1/19/93 FP 142 00 96 0�
2/20�93 FF 270 00 276.00
2l20l93-FP 166 00 154 00
3/t/93-FP 134 00 114 00
3I14l�3•FF 546 00 282 00
3/14/93•FP 168 Ofl 216.00
11l21193-FF 424 00 242 Oa
t 1I30193-FF 652 00 164 00
11I30/93•FP 122 00 88 00
12130/93 FP 142 00 102 00
?113J94-FF 356 00 156 00
?11319�-FP 186 0� 276 Oa
Mean_ 519.3 194 5 337.5 173.1 181.7 154 7
Mean °ro Renroval 625°� 48.7°�6 14.9g6
Std Dev.= 412 8 62.7 333 4 69 3 113 6 717
95°�o Cont. int= 233 5 35 5 1281 2fi 7 59 5 37 6
Upper 95°�b Int.- 152 9 230 0 465 7 199 7 2412 1923
Lower 9596 In�= 285 8 159 0 209 �4 146 4 122 2 117 2
Maximum= 1720 0 282 0 1720 0 282 0 546 0 276 0
Mm�mum: 1 ZO 0 100 0 82 0 80 0 82 0 0
N= 12 12 26 26 14 14
FF First F�ush (T�me Paced) Mean All Data First Flush 8 Fiow Pac�d Data We►ghed Equaily
FP Flow Paced
Blank Cell Analys+s Not Pertorme�
G raa 1 1 CSF Trealmenl Systems. Inc
9/5/94
CSFTM 3 Year Data Summary
Total Solids (TSj Totai Dissolved Solids (TDS)
soo
500 Iniluent
Effluent
aoo
r
mg/L 300
200
100
3
s
y
O
TS TDS TS TDS
Mean First Mean All Data
Flush Data Weighed Equaliy
0
G ra h 4 CSF Treatmenl Systems, Inc
p 9,z,�4
CSF 3 Year Data Summary
Relationship Totai Solids (TS) TSS TDS
soo
500 TDS
TSS.
aoo
mg/L 300
TS Reduction
TS Reduction
625%
487%
2��
f
10
Influe�t Efiluent Infiuent Effluent
Mean First Mean All Data
Flush Data Weighed Equally
TABLE 15 CSF t�eatment Systems, �nc
9I3!lJ44
Compast Storm, Water Filter ��CSF�")
3 Year Data Summary -185th Avenue
Mean Data Summary Nutrients
Frst�Flush �FFl Mean Mean All Data• Mean
Influent Efftuent Percent Influent Eitluent Percent
(matL') (mQiL1 Removal (m�ll� (m�IL1 Removal
Total Phosphorus (T Pj t� 0 52 57.4°� 0.90 0.49 r44 996
Standard Dev�at�on 1 29 0 4ti 0 97 0 36
Soluble,Phosphorus (S-P) 0 09 0.29 +244 4°,� 010 0.29 ♦197.4°�
Siandard Dev�aUon 0 05 0 21 0�06 �0 20
Total K�e�dahl Nitrogen (TKN� 248 4 69 723°� 1:63 0.70 57 4°�b
Standard Dev�at�on 2 i 7 0 36 1 70 0 46
Ammonia Nitrogen (NH3) 014 0.05 64.6°� 0.12 0 OS 59.5�
Slandard �Dev�ation 0 09 0 03 0'09 0 03
N�trate Nit�ogen (NO3� 0 58 1.63 +180 9°� 0 49 1.21 +144.8�
Standard Dev�at�on 0 43 147 0 39 1 17
FF F�rst Flush {��me Paced) Mean All �ia Fast Flush Flow Paced Data We�ghed Equally
FP Flow Paced
TA6LE 1 fi CSF Treatment Systems, Inc
8��3or�a
Compost Storm Water Filter (CSFT"")
3 Year Data Summary -185th Avenue Total Phosphorus (T P)
First Flush (FFl Mean All Data' Flow•Paced (FP)
Storm Event Influent ENluent Stonn Event Influent Effluent Stonn Event InNuent Effluent
Oate m/L m ll O�te m L (m� Date _(mglL) m L
10/22-91-G 1350 0 900 8l9191-G 1 280 0 780 819191-G 1280 0 780
t 0125191-FF 0 440 0 800 8l31191-G 148Q 0 517 8l31/91 •G 1480 0 517
10128�91-FF 0 033 0 510 10122-91-G 136Q 0 904 10I22l91•FP 0 945 0 920
11/12�91-FF 3�4 1400 10/22l91-FP 0 945 0 920 10/25/�ti•FP 0 470 0.550
1/13191-FF 4 400 1 Q00 10125/91-FF 0 440 0 800 10�28�91 •FP 0190 0 460
11119°91-FF 0 640 0 306 10125191-FP 0 470 0 550 11113i91-FP 1400 1000
1�19193-FF 0 99fl 0195 10128/91•FF 0 033 0 510 11/15l91-FP 0 900 1000
2/20193-FF 0 289 0 210 10/28191 •FP 0190 0 460 1l19/93•FP 0 404 0 250
3114193-FF 0 919 0 278 11/12/91-FF 3 200 1400 2/�0193-FP 0181 0113
112il93•FF 0 752 0 262 1 t1�3191-FF 4 400 1000 311193-FP 0188 0 249
11130/93-FF 1 220 0 229 11113/91•FP 14fl0 1000 3/14193-FP 0 2B8 0 223
21� 3194-F F 0 443 0163 11115�91-FP 0 908 1000 11/30193-FP 0 410 0 200
11/19/91 •FF 0 640 0 306 12130/93-FP 0180 0124
1119/93•FF 0 990 0195 2113/94-FP 0 280 0180
tl19l93-FP 0 a0a 0 250
?J20/93-FF 0 289 0 210
?1'2�!93-FP 0161 0173
3/1/93-FP 0188 0 209
3n4r93•FF 0 9�9 0 278
31�a�93-FP 0 288 0 223
11121l93•FF 0 752 0 2S2
11/30193•FF 1220 0 229
11/30193-FP 0 410 0 Z00
12130I93-FP 0180 0120
Z/13�94-FF 0 443 0163
213lS4-FP 0 280 0180
Mean_ 1.22 0.52 0.90 0 49 0 61 0 47
Mean Removal 57.4°� 44 9g6 23 49b
Std. Dev.= 1 29 0 a� 0 97 0 36 0 a9 0 33
95°b Conf Int= 0 73 0 23 0 37 014 0 25 017
Uppet 959G Int 195 0 75 127 0 63 0 87 0 64
Lower 9596 Int.= 0 50 0 29 0 52 0 36 0 3G 0 30
Max�mum� 4 40 1 a0 4 40 140 148 100
Minimum; 0 03 016 0 03 012 018 012
N= 12 12 2G 26 14 14
F F= F��s� Flush (T�me Paced) Mean All Data First Flush 8 Fiow Paced Data We�gh¢d Equalfy
FP �law Paced
TA6 L E 17 CSF Treatment Systems, Inc
9�1l94
Compost Storm Water Fi ter �CSFT"")
3 Year Data Summary -185th Avenue Soluble Phosphorus (S P)
First Flush (FF� Meen All Oab' N Flow-Paced (FP�
Siorm Event Influent Effluent S�rm Event Influer�t EHtuent Storm Event Influent Effiuent
Dete (mg/L� m IL Date (mq� Date m L (m�
t 1 7 i 8�9191-G
10/22 9-G 0 8 0 648 81919 -G
10125/91-FF 0 027 0 511 8"31�1-G 0.096 0 644 8/31191-G 0 096 0 644
10/28i91-FF 4 088 0 425 10/22-91-G 0187 0 648 10122/91 •FP 0 216 0 627
11112'91 •FF 0 31 0 527 18I2?J91 •FP 0 216 0 627 10125/91 •FP 0 080 0 411
11J13l9i•FF 0132 0 454 101�5,�91-FF 0 0�7 0 511 10128191-FP 0 074 0 362
1��9�9�-�F o 090 0 32� 10/25t91-FP 0.080 0 a� 1 1�i13�9�•FP 0.2aa 0 ao5
t/19,�93-FF 0 Ofi1 0115 10128l91-FF 0.088 0 425 1 i/15/91-FP 0 247 0 419
212�193-FF 0 052 0112 10I�191-FP 0 074 0 362 1J19193-FP 0 061 0147
3/14193-FF 0 038 0133 11112l91-FF 0131 0 527 2/20193•FP 0 075 0109
11/21193-FF 0 097 0105 11J13/91•FF 0132 0 454 3l1193•FP 0 049 4146
»l3o�93-FF o os0 p 09y 11/13��91-FP 0 2aa 0 465 3��as93-FP o Q5a o 1a2
?113/94-FF 0 056 0 074 11/15/9� -FP 0 247 0 419 11�30193•FP 0136 0135
11/19191-FF Q 090 0 321 12130/93•FP 0 043 0 OS4
1/19l93•FF 0 061 0115 2113��94-FP 0 047 0 078
1l19/93-FP 0 051 4147
2l20�93•FF 0 052 0112
2/20/93•FP 0 075 0109
3/a193-FP 0 OA9 0146
3f14!93-FF 0 038 0133
3�14/93•FP 0 054 0142
11/21193•FF 0 097 0105
11030/93•FF 0 060 0 091
11/30�93•FP 0136 0135
t 2130�93-FP 0 043 0 064
2l13�9�4•FF 0 058 0 074
2l13/94•FP 0 041 0 078
Mean_ 0 09 0 29 O 10 0.29 011 0.29
Meen °�6 Removat +244.4°�e t197.49b ♦163 6°�6
Std Dev= 005 02t 006 020 008 021
9596 Cont Int= 0 03 012 0 02 0.08 0 04 011
Upper 9S9b Int 011 0 41 012 0 37 015 0 40
Lowe� 95°ro InG= 0 06 017 0 07 0 21 0 07 018
Maximum= 019 0 6� 0 23 0 65 0 25 0 64
Mm�mutn_ 0 03 0 47 0 Q3 0 06 0 04 0 06
N= 12 12 25 25 13 13
FF Firs1 Flush ��me Paced� Mean AI1 Data First Flush 8 Flow Paced Data We�ghed Equally
FP Flow PaCed
Blank Cell Anaiys+s Nat Pertormed
G ra h� CSF Treatment Systems, Inc
p 9/2/94
CSF 3 Year Data Summary
Total Phosphorus (T PO4) Soluble Phosphorus (S PO4)
14
1.2 Influent
t..J
Efiluent
0.8
mglL
0.6 I
0.4
0.2
0
T- PO4 S• PO4 T- P�4 S- PO4
Mean First Mean All Data
Flush Data Weighed Equally
i1
s r i r
G ra h� CSF Trealment Systems, Inc
9/2J94
CSF 3 Year Data Summary
Relationship Totai �T PO4) to Soluble �S PO4) Phosphorus
Mean Redu lon Total
Phosphon� 57 4%
k i Total Phosphorus
1.2 t,,,,i
Mean Red��on Tota1 Soluble Phosphon�s
1
�tosphoru. 44 9%
0.8
mglL
o.s
0.4
0.2
r
O
Iniluent Etfiuent Intiuent Efflue�t
Mean First Me�n All Data
Flush Data Weighed Equ�lly
TABLE 18 CsF Treatment systems, �n�
9I1194
Compost Storm Water Filter (CSFT"'}
3 Year Data Summary -185th Avenue Total Kjeldahl Nitrogen (TKN)
Frst Flush (FF# Mean AA Data• N Flow•Paced (FP�
Storm Event Influent Eftluent Stotm Event Influent Effluent Storm Event Irrfluent Effluent
Date m L) (m�/l.} Date m/L �m� Dabe �(mgil) m IL
t0/22-91-G 3�400 1260 8J9191-G 2 584 1600 8l9J91•G 2 580 16Q0
10125�91 •FF 1 170 1010 8��3i 191-G 1800 1844 8J31191-G 1800 1840
10�281�1-FF 0 520 0 044 10122-9t -G 3 400 1250 10/22191-FP 1400 1 16�
11l12l91 •FF 3 000 1 10a 10/22/91-FP 1400 1 160 10/25/91 •FP 0 730 0 360
11113/91-�F 8 720 0 840 14/25��91-FF 1 170 1010 10/28191•FP 0 350 0 250
1 t It 9l9t •FI� 1400 0 20U 10125l91 •FP 0 730 0 360 11113191-FP 0 600 1100
1l19193-FF i a00 0 a97 10�2.8��� •FF 0 520 0 Oa4 1 �15r9� -FP 0 800 0 9�0
2l20/93•FF 0 718 Q 413 10128191-FP 0 350 0 250 1/191�3-FP 0 596 0 397
3��a�93-F� 2 �60 0 669 2�9� -FF 3 0�� 1 100 ?J20193•FP 0 a2a 0 324
11/21193-FF 2 500 1 100 11013�1-FF 8 720 0 800 3J1193-FP 0 486 0 491
11130�93-FF 2 950 0 722 11/13l91 0 600 100 3r�a�3-FP o 86�a 0 50a
2�� 3194•FF 18� 0 0 426 r� 5�9� •FP 0 800 0 960 1 r30r93•FP 0 6a2 0135
n 9/9i -FF y aoa 0 200 ti30��93-FP 0 756 0 a�s
r� 9193-FF a00 0 a97 Zr� 3!94-FP 0 7� 6 0 269
1/191�93-FP 0 596 0 391
2J20l93•FF 0 718 0 413
2120193-FP 0 42A 0 324
311193•FP 0 486 0 491
3114l93•FF 2164 0 669
3�t4f93•FP 0 864 0 504
11i21193-FF 2 50a 1 108
11130193-FF 2 950 0 722
11130�93 FP Q 642 0135
12l30/93•FP 0 756 0 476
2�� 3�9a-FF 8� 0 0 a26
2113�4 FP 0116 0 269
Mean_ 2 48 0 69 1.63 0 70 O 91 0.70
Mean Removal 723°b 57.4°b 22.fi�b
Std Dev 217 0 36 170 0 46 0 62 0 54
95°� Coni. Int- 1 23 0 22 0 66 018 0 32 0 28
Upper 95� Int 3 71 0 90 2 29 0 67 1 23 0 99
Lower 9S� In�= 1.25 0 47 0 98 0 52 0 59 0 42
Maxlmum= 8 72 1 2S 8 72 184 2.58 184
Mmimum= 0 52 0 04 0 35 0 04 0 35 014
N= 12 12 26 26 14 14
FF F�rst Flush (T�me Pacedf Mean Ail Data F'Ust Flush 8 Flow Paced Data We�ghed Equally
FP Flow Paced
TABLE 19 CSF Treatmeni Systems, Inc
9,�� 194
COI�T�pOSt StOr�I Wate� Fllter �CSF
3 Year Data Summary 185th Avenue Ammonia Nitcogen (NH3)
First Flush (FF1 Mean All Data' Row•Pa�d (FPl
Storm Event Influent Eftluent Stotm Event Influent EHluent Storm Event fnfluent Effluent
Date m�L m�Ll L Date m L (m� Oste (m!
10/22-91 •G 0 268 0 054 8/9�91-G 8�9'91-G
10/2�l91-FF 051 0 041 8131f�1•G 0 273 0 093 8/31/91-G Q.273 0 093
10/�l91-FF 0 097 0 049 10122•91-G 0 268 0 054 10/22191-FP 0 258 0 049
f 1/1?191-FF 0 038 0 055 1012?191-FP 0.258 0 049 1 Q!?5/91 •FP 0 047 0 039
11113191-FF 0 048 0 Q31 10125/�J1-FF 0 451 0 041 10t28191•FP 0 089 054
11119!91-FF 0.016 0140 10/23191 •FP 0 047 0 039 11/13i�1-FP 0 017 0 093
1/19/93•FF Q 171 0 Q54 101�8191 •FF 0 Q97 0 049 11/15/91-FP 0 01? 0 015
21Z0/93-FF 0184 0 051 10/28/91 •FP 0 089 0 054 1119193•FP 0112 0 076
3/14193-FF 0.166 0 032 111t 2/91-FF 0 038 0 055 2120/93-FP 0.058 0 050
11121/�3-FF 0 268 0 052 11113f91-FF 0 048 0 031 3lt193•FP 4146 0 O70
11/30/93 FF 0 �a0 0 0� o r� 3r9� •FP 0 0� 7 0 093 3��a�93-FP o Osfl 0 02�
2'13l94•FF 0 276 0 042 11l! 5/91-FP 0 011 0 015 11/30193-FP 0 014 0 a10
11 /19.'91-FF 0 018 0140 12/301�3•FP 0104 0 O10
1l19,�3•FF 0171 0 054 2/13/g4•FP 0 089 0 a20
1/19,�93-FP 0112 0 076
2l�0,�93-FF 0184 0 051
2124i93-FP 0 058 0 050
3i1�93-FP 0146 0 070
3114i93•FF D 166 0 032
3�t4193•Fp 0 Q60 0 021
11121I93•FF 0 268 0 052
11J30193•FF 0140 0 014
11130l93•FP 0 014 0 O10
12130�J3 FP 0104 0 O10
2�13/94-FF Q 276 0 042
2'13194-FP 0 a69 0 OZQ
Mean_ 0.14 0 05 0.12 0.05 010 0 05
Meen Removal 64 6� 59.59b 52 5°�6
Std Dev 0 09 0 03 0 09 0 03 0 OS 0 03
9596 Conf Int= 0 05 0 02 0 Q4 0 01 0 05 0 02
Upper 95� Int.= 0 ZO 0 07 016 0 46 014 0 06
Lower 95°� Int: 0 09 0 03 0 08 0 04 0 05 0 03
Maximum= 0 28 014 0 28 0 t4 0 27 0 09
Mmimum= 042 001 001 001 001 001
N= 12 i 2 25 25 13 13
FF Frst Flush (T�me Paced) 'Mean All Data First Fiush 8 Flow Pa�ed Data We�ghed Equaily
FP Flow Paced
Blank Cell Analys�s Not Periormed
TAB LE 20 CSF Treatment Systems �nc
9�1194
Compos# Storm Water Filter (CSFT""�
3 Year Data Summary -185th Avenue Nitrate Nitrogen (NO3)
First Flush �FFl Mean All Oata' N Flow-Paced F� P�
Storm Event IMiuent Eftluent Storm Event influent Eflluent Storm Event Influent Effluent
Date m/U m/L Date m!L �m� Date (m!
10122-91-G 0 423 0 592 819191 •G B/91'91-G
�o125i9t•FF 0 a27 Oo0 8�3�19�-G 0 558 0 7�5 B�3�J91-G 0 558 0 713
10/28/91 FF 0102 0 326 10122-91-G 0 423 0 592 10/22/91-FP 0 703 0 711
11/12l91-FF 0 491 0 259 10/22l91 •FP 0 703 0 711 10/25.�91-FP 0 230 0 235
11113�91-FF 0 059 0143 10l25191-FF 0 427 1040 t 0/28191-FP 0170 0191
11��9�9�•FF 0 245 0 223 10�25r9�-FP 0 230 0 235 ���t3�91�FP Q �10 0193
1l19�93-FF 0 76� 2 570 10/26l91-FF 0102 0 328 11115191-FP 0 012 0190
2/20193-FF 1010 3 460 101�6191-FP 170 0191 1/19193•FP 0 323 0 862
3�14I9�-Ff 0 588 2.930 11/1?191 •FF 0 491 0 259 ?120/93-FP 1310 1 330
t 1/21/93 FF 1 010 4 230 11/13�91-FF 0 054 0,143 3/11�3•FP 0.444 0 866
�1r30f93-FF 0 328 0 9a9 ���13r9�•FP 0 ��0 0 �93 3r�a�93-FP 0 6n 2 590
2J13194•FF 1320 2 790 11l15191-FP 0 072 0190 1113Q�9"s-FP Q 084 0 431
11l19�91 •FF 0 245 0 223 12/30/93•FP 0 326 1084
1119/93-FF 0 765 2.570 2l13�4•FP 0 406 1354
1/19193•FP 0 323 0 862
2120/93-FF 1010 3 460
2/20193•FP 1310 1330
311193•FP 0 444 0 866
3►14/93-FF 0 568 2 930
3��a�93 FP 0 677 2.59�
11/21/93-FF 1 010 4 230
)1130193•FF 0 326 0 9a9
11l�0193•FP 0 Q84 0 431
2l30�93•FP 0 326 1084
?113�94-FF 1 52a 2 790
2Jt3'94-FP 0 406 1 350
Mean_ O 58 1.63 0 49 121 C.42 0 83
Mean Rertwvai ♦180.9°� +144.8� +98 S°b
Std. Dev 0 a3 1 a7 0 39 7 0 34 0 6�
95°�6 Cont Int= 0 24 0 83 015 0 46 019 0 37
Upper 95°�b Int 0 82 2 46 0 65 167 0.60 1 19
Lower 95°� Int 0 34 0 80 0 34 0 75 0 23 0 46
Maximum= 1 52 4 23 1 52 4 23 131 2 59
Mmimum= 0 06 0 t4 0 06 014 0 07 019
N= 12 12 25 25 13 13
FF First Fiush (T�me Paced) Mean All Data F�rst Flush 8 Flow Paced Data We�gh:,� Equaily
FP Flow Paced
Biank Cell Ana�ys�s Noi Pertormed
r ar �rr �■r �r r a� r� �r �r ��s s�
G ra h 7 CSF Treatment Systems, Inc
p
CSF 3 Year Data Summar 9'�4
v
Tatal Kjeldahi (TKN), Ammonia (NH3) Nitraie (NO3� Nitrogen
2 .5
t Influent
2
Eflluent
15
mg/L
N
i
O
TKN NH3 NO3 TKN NH3 NO3
Mean First Mean Ali Data
Fiush Data Weighed Equally
G ra CSF Treafinern Sysiems, inc
p 9/2/94
CSF 3 Year Data Summary
Total Nitrogen (TKN NH3 NO3)
T T
3.5
28 2 Total
Nitrogen Reduclioi NO3
�^'''r
3
i NH3
2.5
131 Total TKN
Nrtrogen Reducfror
2
mglL
c"�
1.5 r
�Y
f ry
f
1
0.5
t
f
0
Influent Eftluent Influent Efftuent
Mean First Mean All Data
Flush Data Weighed Equally
r s■� ��r a� a�r i�r ��r a�r
TABLE 21 CSFTreatment Systems, Inc
9/3194
Compost Storm Water Filter (CSFT"'�
3 Year Data Summary -185th Avenue
Mean Data Summary Metals
First Flush �FFl Mean Mean Ail DaEa' Mean
Influent Effiuent Percent Irtfluent Effluent Percenl
Iu411� (u�1 Removal (u�R.) (uQil1 Removal
Atuminum (AI� 11,180.7 1,3t6.2 88.2°b 6,889 9 1�077.4 84.4�
Standard Dev�at�on t 2,0051 7515 9,086 3 S25 9
Iron (�e} 27,5151 1,820.1 93.4°b 15,068.8 1,417.1 90 6°�
Standard Dev�at�on 36,fi151 89D.2 26,976 6 780 8
Banum (9a) 145.9 34.0 76 7% 89.9 30.2 66.5°�6
Standard Dev�atron 1061 10 8 89 8 1a S
Manganese �Mn) 336.8 43 6 87.1°�6 210.3 39.2 81.396
Standard Dev�aaon s 346 0 212 266 0 23 7
Lead (Pb)' 63 0 8 6 86.4°b 37.3 6 5 825°�6
StBndard Dev�at�on 3t 9 3 5 32 3 31
Z�nc (Zn) 256 2 36 0 85 9°,b 177 3 29 7 83 2°,b
Standard Dev�at�on 15a 4 1� 2 132 5 12.9
Chromium (Cr) 19.2 3.4 823°�6 tt.8 41 651°b
Stand�rd Dewat�un 12 4 16 10 6 4 4
Cobalt (Co) 10.0 O 9 90.6°�6 6 5 0 9 85 9°b
Standard Dev�at�on 1 9 0 0 6 7 4 0 9
Copper (Cu) 37.9 9.5 75.1°�6 25.8 9.0 65.3°,b
Standard Dewat�on 16 9 31 1 S 3 3.8
N�cket (Nf) 13.9 4.S 67 6°� 9.5 4.9 481°b
Standard Dev�at�on B 6 19 7 5 3 7
Vanadium (Vj 44.5 9.6 78.3°�6 �.8 9.1 68.3°�
Standard Dev�aUon 47 6 3 6 35 5 3 6
Boron (B) 24.2 34.0 +�Q.496 21.6 35,1 +61.2°�
Standard Dev�at�on 9 4 20 2 12.7 27 5
FF F�rs1 Flush (T�me Paced) Mean All Data F�rst Flush 8 Fiow Paced Data We�ghed Equally
FP Flow Paced
Two Years Data Only
TABLE 22 CSF Treatment systems, �nc
9I1194
�ompost Storm Water Filter (CSFT"'�
3 Year Data Summary -185th Avenue Aluminum (AI)
Fl�st Flush �FFl Mean ai oata' Flow•Paced IFP)
Storm Event Influent Etiluent Storm Event Influent Enlueni Stornn Event Ictfluent Effluent
Date u/L (u�il.l Dete u IL (u�/l.) Dete u/L
10l22•91-G 30P 5 1,576 0 819/91 •G 8J9191-G
10/25191 •FF 3,799 4 1,919 0 8/31191-G 5,554 0 1,408 0 8J3i/91-G 5,554 0 i,408 0
1O128191•FF 10/22-9t-G 302 5 1,576 0 10/22191-FP 10,880 0 1,396 0
11/12�91 •FF 23,140 0 3016 10/22191•FP 10,8$0 0 1,396 0 t0/25/91•FP 1,168 0 514 0
3�9� FF 4 �,080 0 2,085 0 10r25�9i •FF 3,799 0 1,919 0 0128r91-FP 1,a65 0 3831
11/19'91 •FF 7561 327 5 10l25191-FP 1,168 0 514 0 11/13/91-FP 4,762 0 1,760 0
1/19!93-FF 9,660 0 598 0 10128/91•FF 11/15191•FP 3,660 0 608 6
2�20�93-FF 3,850 4 732 0 0�28�9� -FP �,465 0 383 i r19/93•FP 3,000 0 932 0
3114d93-FF 12,Z04 0 1,564 4 11/1 ti91-FF 23,100 0 5016 2/20/93•FP 1,460 0 736 0
11l21/93�-FF 10,400 0 2,310 0 11113l91•FF 41,080 4 2,085 0 3l1193 FP 1,940 0 448 0
11/3Q�93•FF 14,204 0 2,160 0 11113l91-FP 4,762 0 1,760 0 3/14/93•FP 2,300 0 8710
2113/9a-FF 3,640 0 7Q9 0 11/15191 •FP 3,66a Q 608 6 11/30/93-FP 1,860 0 1,OG4 0
111t 9191-FF 7561 327 5 1?J30193-FP 1,950 0 8110
1179/93•FF 9,660 0 598 0?113t94•FP 2,370 0 452 0
1/19/93-FP 3,000 0 932 0
2120193•FF 3,850 0 ?32 0
2120193•FP 1,460 0 736 0
311/93-FP 1,940 0 448 0
3J1 a193 FF 12.200 0 1,560 0
3��a�93•FP 2,300 0 8710
11l21l93-FF 10,400 0 2,310 0
1 i130!93 FF 1a,200 0 2,�60 0
11130�93 FP 1,860 0 1,060 0
ti30r93 FP 1,950 0 8� 10
2/13/94 FF 3,640 0 709 0
21�3�9a-FP 2,370 0 a52 0
Mean_ 11,180 7 1,316 2 6�889 9 1,077 4 3,259.2 875 4
Mean °,b Removal 88.2°�6 84.4°� 73.1°,b
Std Dev 12,0051 7515 9,086 3 625 9 2,642 3 428 6
9596 Coni. Int= 7,094 4 4441 3,635 2 250 4 1,4� 3 233 0
Upper 95°,b Int.- 18,2751 1,760 3 10,525 0 1,327 8 4,695 5 1,108 3
Lower 9596 Int 4,086 3 8�21 3,254 7 821.0 1,822 8 642 4
Max�mum= 41,080 0 2,310 0 41,080 0 2,3t0 0 10,880 0 1.760 0
Min�mum= 302 5 327 5 302 5 327 5 1,168 0 3831
N= 11 11 24 24 13 13
FF F�rst Flush (Time Paced) Mean A!I Data F�rst Flush 8 Flow Paced Data We�ghed Equaliy 4
FP Flow Paced
Blank Cell Analys�s Not Perlormed
T/�BLE 23 CSFTreatment Systems
9/1194
Compost Storm Water Fiiter (CSFT"")
3 Year Data Summary 185th Avenue Iron (Fe�
Ficst Flush (FF� Mean All Data' Flow-Paced (FP)
Storm Event IMiuent Efiluent Storm Event Influent E#fiuent Storm Event Influent Eifluent
Date ,(u�lll (uolL� Date ,�1 (ug1L1 �ete u �L (u�
10122•91 •G 25,844 0 1,928 0 B.�J191-G 8l9�91-G
10/25/91 •FF 5,636 0 2,444 0 8►3119� •G 5,465 0 1,233 0 8131/91-G 5,465 0 1,233 0
10!?.�191•FF 10/2'1-91-G 25,844 0 1,928 0 1Q�2?J91•FP 16,750 0 1,914 0
�i�1ti9�•FF �3,860 0 6081 10122�9�•�P �6,750 0 i,9�a 0 �0125�9�•FP 1,795 0 722 2
111�3.�91-FF 53,ia0 0 2,730 0�0�2519�-FF 5,636 0 2,4aa 0 �0/28r9�•FP 2,029 0 5a4
11 �191�1 •FF 10,940 0 1,330 0 10125l91-FP 1,795 0 722.2 11/13191 •FP 6,3310 1,92b 0
1/19193-FF 130,000 0 934 0 10128f91 •FF 111! 5l91 •FP 4,8010 780 9
212Q/93•FF 4,860 0 947 0 10128l91-FP 2,029 0 5441 1l19/93•FP 4,500 0 1,220 0
3��a�93•FF �6,600 0 �,950 0 ����2r9�-FF �3,860 0 648 2f2o193•FP 2,084 0 907 0
11 �21193-FF 15,200 0 3,020 Q 11 d13/91-FF 53,140 0 2,730 0 3/1193-FP 2,510 0 293 0
11l30/93 FF 20,900 0 3,030 0 11113t91-FP 6,3310 1,926 0 3/14l93-FP 3,223 0 1,130 0
?113/94 FF 5,69� 0 1,100 0 11l15l91-FP 4,8010 78fl 9 11/30/93 FP 2,660 0 1,4Z0 0
11�19191-FF 10,940 0 1,330 0 12130193-FP 3,000 0 1,090 4
1119,�93-FF 130,000 0 934 0 2113�94-FP 3,844 0 810 0
1/19.�93•FP 4,500 0 1,220 0
?12a��93-FF 4,860 0 947 4
2t�0193•FP 2,080 0 907 0
3/1193•FP 2,510 0 293 0
3�14l93•FF 16,600 0 1,950 0
3114l93•FP 3,223 0 1,130 0
11/2t193-F� 15,�0 0 3,020 0
11i30t93•FF 20,900 0 3,030 0
11J3��3-FP 2,660 0 �,a20 0
12130F93-FP 3,Oa0 0 1,090 0
2113194-FF 5,690 0 1,100 0
2J13194•FP 3,840 0 810 0
Mesn- 21,515.1 1,6201 15,068 8 1,417.1 4�537.2 1�076 2
Mean Removal 93 4°,� 90.6°� 76.3°�
Sid. Dev 36,6151 890.2 2�,976 6 780 8 3,930 2 483 0
9596 Co� Int= 21,637 7 5261 10,792 7 312 4 2,136 5 262.5
Upper 95� InG= 49,152 8 2,34G 2 25,8614 1,729 5 6�673 7 1,338 7
Lower 95°� int.= 5,877 4 1,294 0 4,2761 1,104 8 2,440 8 813 6
Max�mum= 130,000 0 3,030 0 130,000 0 3,03U 0 16,750 0 1,926 0
Mirnmum- 4�860 0 6081 1�795 0 293 0 1.795 0 293 0
N= 11 11 24 24 13 13
FF F�rst Flush (T�me Paced) Mean All Data Firsi Flush 8 Flow Paced Data We�ghe�d Equally
FP Flow Paced
BJank Ce�l Analysis Not Pe�formed
G ra h 9 CSF Treatment Systems. Inc
p 9/2/94
CSFTM 3 Year Data Summary
Aluminum (AI) iron (Fej
30000
Inftuent
25000
Efflue�t
20000
ug/L 15000
10000
5000
0
AI Fe AI Fe
Mean First Mean All Data
Flush Data Weighed Equally
r i
GRAPH 1� csF Treatmer» systems, �nc
9/4/94
CSF TM 3 Year Data Summary
First Flush Januaty 19,1993 Storm Event
�a0000 �30,000.0
p Influent
120000 99 3 °�o p Effluent
Removal
100000
80000
ug/L
60000
40000 93 8%
Removal
20000 9660 0
934 0 598 0
0
I
Iron (Fe) Aluminum (AI)
TABLE 24 CSF Treatment Systems, Inc
9�3,'94
Compost Storm Vllater Fiiter (CSFT"")
3 Year Data Summary -185th Avenue Barium (Ba)
First Flush F�F' Mean All Deta' T Flow-Paced 4FP#
Storm Event Influent Effluent Storm Event Influent Effluent Slorm Event Influent Efilueni
Date u IL (ugll.) Dete �u! Date u (u!
10/22•91-G 142 60 26 70 B19J91-G 6/9J91-G
10/25l91-FF 47 60 42 60 613119t -G 84 70 74 90 8131/91-G 84 70 74 90
10128�91 •FF 10/22•91-G 142 60 26 70 10/2?J91 •FP 11130 29 90
111121�1-FF 21910 15 30 10�'22J91 •FP 11130 29 90 10125�91-FP 1610 11 70
11�t3�91-FF a2590 3� 50 10r25���•FF a78fl 4280 10/28�9�•FP 21 90 �970
11/19r9� -FF 00 00 24 80 10i25.�91 FP t 610 1 t 70 t 1 �13/91-FP 57 90 2170
1/19193•FF 124 00 37 00 t0/28/�1 •FF 11l15/91-FP 50 80 16 00
2I20f93•FF 57 Ofl 39 00 10/?8�91-FP 21 90 19 70 1119193•FP 38 30 16 70
3/14r93-FF 138 00 52 60 11/12191-FF 21910 15 3U 2J20193•FP 24.00 23 60
11/21193•FF �08 00 a� 90 �n3�9�-FF 425 90 3� 50 3/1193•FP 25.10 �3.50
11130193•FF 176 00 39 8� 11113!91-FP 57 90 21 70 3114193-FP 2g 80 38 60
2113!94-FF 66 50 22 80 11115l91 •FP 50 80 16 00 11/30/93-FP 26 90 19 30
�/19�91-FF 10� 50 2a 80 2130�93-FP 30 70 5 80
1t19i93 FF 124 00 37 Oa 2�13194-FP 34 60 43 S�0
1r19i93•FP 38 30 18 70
2'20J93•FF 57 00 39 Oa
212�193•FP 24 QO 23 8fl
31t193•FP 2510 15 50
3114193•FF 138 00 52 60
3!14f93•�'P 29 80 38 60
11J21193•FF 108 QO 4190
11130193•FF 176 00 39 80
11130193-FP 28 90 19.3fl
12l30/93-FP 30 70 15 80
?113194-FF 66 50 22.60
2J13/94-FP 34 60 43 80
Mean_ 145 9 34.0 89 9 30.2 425 26 9
Mean Removal 76 796 66.5°� 36.7�6
Std. Dev.= 1061 10 8 89 8 14 8 27 7 17 2
95°� Coni. Int= S2 7 6 4 35 9 5 9 151 9 4
Upper 9596 In�= 208 6 40 4 125 8 361 57.5 36 2
Lower 95°b Int.= 83 2 27 6 54 0 24 2 214 i 15
Maximum= 425 9 52 6 425 9 74 9 1113 74 9
Mirnmum- 47 8 15 3 161 11 7 161 117
N= 11 11 24 24 13 13
FF F�rst Flush (Time Paced) Mean A11 Data F�rst Flush 8 Flow Pac�d Data We�ghed Equalty
FP Flow Pace�
Blank Cell Analys�s Not Pertormed
TABLE 25 CSF Treatment Systems �n�
9/3�94
Compost Storm Water Filter (CSF�'"}
3 Year Data Summary -185th Avenue Manganese (Mn)
Frst Flush �FF� Mean All Data• Flow-Paced (FP)
Storm Event I�fluent E�luenl Storm Ev�nt Influent EAluent Storm Event Influent Effluent
Date u�L tu� Date u�L (u� Date u L (u�
10/22-91-G 39 26 6101 819l9i -G 6l9191 •G
10125�91 105 5Q 52 30 6l31/91-G 152 70 64 00 6/31191-G 15270 64 00
10128/91 •FF 10122•91 •G 39 26 61.01 10l22�91-FP 36410 5101
1111 ?191-FF 60t 9fl 912 10/2?191-FP 36410 5101 10l2�191 •FP 36 29 15 90
111� 3�91-FF 1264 00 56 04 10/25l91 •FF 105 50 5Z 30 10i28l91 •FP 53 72 19 83
11 ot 9r9� •FF 226 50 1190 10/25/91 •FP 3G 29 15 90 11113191-FP 154 60 33 88
1l19�93-FF 234 00 23 60 10��91•FF 11115l91-FP 104 0� 13 92
2'20/93-FF 81 50 43 00 10128l91 •FP 53 72 19 83 1/19/93-FP 98 00 19.70
3n4193-FF 309 00 70 50 t t�12J9t-FF 60190 912 2/20�93•FP 33 60 1S 8E�
��12��93•FF 287 00 6� t��i3�91-FF �26�a 00 58 0� 31��93•FP 49 30 1a 60
1 �i30193�•FF 42100 46 30 1 r13i9� -FP 15a 80 33 88 3�14�93-FP 65 20 a5 ZO
2113/94-FF 135 00 37 00 11115�91-FP 104 00 13 92 11130193-FP 77 00 37 90
11/19�91 •FF 2�6 50 1190 12I30/93•FP 63 70 �'t 90
1J19193•FF 234 00 23 60 ZJ13194 FP 89 70 104 00
1119�93•FP 98 00 19 70
2'20�93 FF 81 50 43 00
2l20/93-FP 33 fi0 19 80
31I193-FP a9 30 �a �0
3l14/93 FF 309 �0 70 50
3114/93-FP 65 20 45 20
11121f93•FF 287 00 66 40
11l30I93•FF 42100 4fi�30
11/30/93•FP 77 Oa 37 90
i 2130�93-FP 63 70 22 90
2113i94 FF 135 00 37 04
2/13�9�4 89 70 104 00
Mean_ 336.8 43.6 210.3 39 2 103.2 35 6
Mean Remcval 87.1°,� 81.3°,b 65 �°�b
Std Dev.= 348 0 212 266 0 23 7 87 4 25 9
9596 Conf Int= 205 6 12 5 106 4 9.5 47 5 141
Upper 95°� In4= 542 4 56 t 316 7 48 7 150 6 49 7
Lower 95°,6 Int.: 131 1 31 1 103 9 29 6 55 7 21 5
Max�mum= 1264 0 7Q 5 1264 0 104 0 3641 104 0
Minimum= 39 3 91 33 6 91 33 6 13 9
N= 11 11 24 24 13 13
FF F�rst Flush (T�me Paced� Mea: All Data F�rst Ffush 8 Flow Paced Data We�ghed Equaliy
FP Flow Paced
Blank Cell Analys�s Not Perfortned
TABLE 26 CSF Treatmerri Systems
Compost Storm Water Filter (CSFT"'�
3 Year Data Summary -185th Avenue Lead (Pb)
Frst Flush SF� Mean All Data' T Flow-Peced (FP)
Storm Event Influent Effluent Storm Event Influent Cffiuent Storm Event Influent Effiuent
Date u il (u� Date u�� Date Iu�1L) u IL
10122•91 •G 819191-G 8l9191-G
1QI25/91 •FF 8t31l91-G 8l31/91-G
10�28l91-FF 10122•91-G 10/22191-FP
11112191-FF 10/22l91 •FP 1 �125191-FP
11113f91-FF 10/25191-FF 10/28/91-FP
11/19f91 •FF 10/25J91-FP 11/13.'9� -FP
1119/93•FF 6700 665 �Or28�91•FF 11i�5�9�-FP
2/20/93-FF 27 00 5 31 10128J91-FP 1119193•FP 2Q 80 5 68
3rt4!93-FF 90 90 8 39 11�t 2191 •FF 2lZ0193-FP t0 �0 5 48
11121/93•FF 62 60 11 10 11/13/91-FF 311J93•FP 12 8U 3 48
11l30/93-FF 104 00 14 34 t 1J13191 •FP 3114/93-FP 15 70 5 01
2113/94-FF 2S 60 5 59 11J15/91 •FP 11/30193-FP 13 50 5 86
11119/91-FF �2�30�93-FP �6a0 a �5
1119193•FF 67 OQ 6 65 2l13/94-FP 17 20 3 6fi
11191�3•FP 20 84 5 68
2/20/93-�F 27 00 5 31
2120193•FP 1010 5 48
311193-FP 12 80 3 48
3/t4/93-FF 90 90 8 39
3114193-FP 15 70 5 01
11/21/93•FF 62.60 1110
11�30�93-FF 10a 00 �a 30
1�130/93-FP 13 50 5.86
12l30/93-FP lfi 40 415
2113/94-FF 26 60 5 59
2l13l94-FP 17 20 3 66
Mean_ 63.0 8.6 37 3 6.5 15.2 4 8
Mean °A Removal 85 4�6 825� 68 7�
S� Dev: 319 3 5 32 3 3 t 3 5 10
95°� Conf. Int= 25 5 2 8 17 6 11 2� 01
Upper 95�b Int.= 88 6 114 54 9 8 2 17 8 5 5
Lower95�int.: 375 57 197 48 t27 40
Maximum_ 104 0 14 3 104 0 14 3 20 8 5 9
M�nimum: 26 6 5 3 101 3 5 101 3 5
N= 6 6 13 13 7 1
FF F�rst Ftush (T�me Paced) Mean All Data Ftrs: Flush 8 Flow Pac�d Data We�ghed Equaliy
FP Flow Pace�
8tank Cel! analys�s Not Performed
TAB LE 27 CS� Treatment Systems �nc
Compost Storm Vllater Fi ter (CSFTM'�
3 Year Data Summary 185th Avenue Zinc (Zn�
Flrst Flush 4FF� r Mean All Data' Flow•Peced F� P�
Storm Event Ir�fluent Effiuent Storm Event tnfluent Effluent Storm Event Influer�t Effluent
Date u!L) (u� Date u�L �u� Da�e �!u L� u IL
0��•9� -G 15 7S 2� a0 8�9�9� •G 150 00 32 90 819r91-G 150 00 3290
o�2sr�� -FF aa �0 2� �o e�� �s� �o a� oo s�3� �s� -G �o �z ao
10t28r91 FF 10/22•9� •G 15 76 2140 10�2ti91 •FP 318 t 4 23 56
11/12l91•FF 27aa0 2� 89 �0�22�9�-FP 3�6�0 2356 �Or25.�1•FP 5282 127�
11113�91-FF 556 40 37 5a 0125r9� -FF �aa 90 27 a0 Di�91 •FP 18�! 00 13 5a
11/19,'91 •FF 230 00 17 46 1 O125l91-FP 52 82 12 T1 11113J91 •FP 109 3� 20 52
1/i 9I93-FF 294 00 36 20 10/28V�91 •FF 11/15/91 •FP 99 5B 13 59
2ilaf93-FF 119 00 36 70 10128191-FP 180 00 13 54 1/19i93•FP 88 40 2a 20
3�1419"s-FF 309 00 49 30 11Jt2�91•FF 274 40 2189 2120193-FP 5410 2$ 2�
1 121193-f F 312 00 5100 11113�91 •FF 556 40 37 54 311193-FP 76 60 3610
1113Ul93- FF 439 00 64 20 11/13/91-FP t 09 3� 20 �2 3l14�3-FP 92 90 40 00
2It3/94-FF 124 00 2710 1 i115i91•FP 99 58 13 �9 11l30/93•FP 78 20 30 00
11119l91-FF 230 00 17 46 12/30l93•FP 94 70 22 3U
1119193-FF 294 00 36 20 2113194•FP 84 80 27 20
1119.d93-FP 86 40 24 20
?120/93 FF 119 00 36 70
�'2Qi93 FP 5410 28 20
3/t�93•FP 76 6Q 3610
3/14l93-FF 309 00 49 30
3�14�93�FP 92 90 4a 00
11/21f93-FF 312 00 57 00
11130J93-FF 439 00 64 20
11l301�3-FP 78 20 30 00
1?l30I93-FP 9doT0 22.30
2/13/94-FF 124 00 2710
?J13/94•FP 84 80 27 20
Mean= 256.2 36.0 177.3 29.7 115.2 24.8
Mean 96 Removal 85 9°� 83.2°�6 78 5°�
Std Dev 154 4 15 2 132.5 12 9 6$1 8 3
95� Cont Inti: 91 2 9 0 5� 9 5 t 35 7 4 4
Upper 95°�e Int,� 3415 45 0 �9 2 34 6 150 9 291
Lower 95�b In�= 165 0 27 0 125 3 24 7 79 6 20 4
Maximum= 556 4 64 2 556 a 64 2 3161 44 0
Mimmurr� 15 6 17.5 15 8 12 7 52 8 12 7
N= 11 11 25 25 14 14
FF Firsl Flush (T�me Paced) Mean All Data F�rst Flush 8 Flow PQ^e� Data We�ghed Equaily
FP Flow Paced
8iank Ceil AnalysiS Not Pertormed
G ra h 11 CSF Treatment Systems, Inc
p 9�4
CSFTM 3 Year Data Sur�mary
Barium �Ba), Manganese �Mn), Lead (Pb) Zinc �Zn)
350 T T T
Influent
300
t...� Effluent
250
r
200
ug/L
150
100 f
50
0
8a Mn Pb Zn Ba Mn Pb Zn
Mean First Mean All Data
Fiush Dat� Weighed Equatly
r �r �r�rr r� �r s �rr r� �r�r r r�
TABLE 28 CSFTreatment Systems �nc
Compost Storm Water Filter (CSFT"")
3 Year Data Summary -185th Avenue Chromium (Cr�
Frst Flush (FF� Mean Ali Data' Flow-Pac�d (FP)
Storm Event Influent Effluent Siotm Event Iniluent Ef�luent Storm Event Influent EHluent
Date u IL �u� Date u IL (u�ll1 �ate iu�lll (u��
10J22•91-G 17 58 3 90 8l9191-G 6 70 3.30 B191'91-G 6 70 3.3Q
10/25191-FF 7 00 31 8131/91-G 6 40 4 00 8131/91-G 6 40 4 0�
1oI28191-�F to/22-91-G 17 56 3 90 10122�J1-FP ta 59 23 69
11�1219� •FF 17 96 165 10/22191 •FP t4 59 23 69 10125l91-FP 2 44 6 84
11113t9ti •FF 52 OS 2 99 101Z5f91 •FF 7 �0 310 10128l9i FP 3 00 156
�n9��9� FF �3 24 1 66 10i25191 •FP 2.aa 6 8a �n3�9� •FP 6 98 2 75
1/19/93•FF 15 40 2.68 101��91 •FF 11115l91 •FP 5 25 3 94
2�20/g3•FF 10 a0 2 60 �O��fl�9� •FP 3 00 1 56 1it9193-FP a 35 2 24
3f14l93•FF 24 20 4 29 11l1?J91•FF 17 96 165 2J20193-FP 2 95 2 32
11I21r93�FF 16 00 4 90 1 ��13191 •FF S2 06 2 99 3�1193-FP 5 86 0 71
11/30i93•FF 28 50 6 98 11/13.�91 •FP 6 98 2 75 3/14193-FP 5 47 2.68
2r� 3�9a•FF 0 30 2 a7 ���15,�9� •FP 5 25 3 9� �r30f93-FP 6 55 6 56
11/19�9�-FF 13 24 16S 1?130193-FP 7 64 2 34
1/19d93•FF 15 40 2 68 ?113194-FP 5 29 2 51
1119l93-FP 4 35 2 24
2�20193-�F 10 40 2 60
2124193-FP 2 95 2 32
311193-FP 5 86 0 71
3114/93-FF 24 20 4 29
3�14l93•FP 5 47 2 68
11121/93-FF 16 00 4 94
11130193•FF 26 50 6 98
11/301�3-FP 6 55 6 56
12�30l93•FP 7.64 234
2113�4-FF 10 30 2 47
?J13!94-FP 5 29 2 5t
Mean_ 19 2 3 4 1 t.8 41 6 0 4.T
Mean 9b Removal 82 3°�G 65196 21.69b
Std Dev.: 12 4 1.6 10 6 4 4 3 0 5 7
9596 Cont. In�= 7 3 0 9 4 2 17 15 3 0
Uppet 93°b in�= 26 5 4 3 15.9 5 8 7 5 7 7
lower 95X In�= 118 2 5 7.6 2.4 4 4 1 7
Maximum: 521 7 0 521 231 t4 6 23 7
Mmimum= 0 17 2.4 0 7 2 4 0 7
N_ 11 11 25 25 14 14
FF F�rst Flush (Time Paced� Mean Ali Data Firs1 Flush 8 Flow Paced Dala Werghed Equally
FP Flow PaOed
Blank Cell Analys�s Not Performed
TABLE 29 CSF Treatment Systems, lnc
gr3�g
COI�pOSt StOrITI �ater Fl�te� �CSF
3 Year Data Summary 185th Avenue Cobalt (Co)
Flrst Flush F�F Mean Ali Data' Flow•Paced 1FP�
Stornn Event Influent EfNuent Storm Event Influent Eifluent Storm Event Influent Effluent
Oate u IL (u� Date u�L (ug/! Det� u �L (u!
10/22-91-G 1131 100 8d9191-G 8/9191-G
1 Oi25�'91-FF 3 00 1 10 8f31191-G 5 80 4 40 8/31191-G 5 80 4 40
10/ZB'�t -FF 10/22-91 •G 1131 100 10/22/9t •FP 9 80 135
t t/1 ?�91-FF 12 86 0 29 10122191-FP 9 60 135 10125l91 0 80 0 32
11/13/91 •FF 3516 ti 45 10/25/91-FF 3 00 1 10 10/28I91-FP 120 0 29
11 �19�91-FF 5 78 0 20 10125/91-FP 0 80 0 32 11 /13/91-FP 3 98 0 85
1/19193•�'F 7 86 0 55 10/28t91 •FF 11/15�191-FP 2 69 0 42
2l2a1'93-FF 2 81 0 45 10�28191 •FP 120 0 29 1119193•FP 2 79 0 69
3114193•f F 12 50 1 25 11/12d91 •FF 12 86 0 29 ZI20/93-FP 0 9� 0 00
t �121193 FF 8 98 2 05 1 �i13r91-FF 3516 45 3r1193-FP 68 0 0�
11130193•FF 13 70 165 11/13�91-FP 3 98 0 85 3/14l93-FP 2 20 0 82
2113P94•FF 3 45 p 74 11115.�91 •FP 2 69 0 42 11130/93•FP 184 0 91
2113194-FP 2 26 0 50 11119191-FF 5 78 2a 12/30/93-FP 205 0 66
1/19,�93 FF 7 86 0 55
1/19/93•FP 2 79 0 fi9
2lZOl93•FF 2 81 0 45
2'20i�3-FP 0 9c 0 00
311193-FP 166 0 40
3114l93-FF 12 50 125
3/14193-FP 2 20 0 82
11121/93-FF S 96 2 05
11/34193•FF 13 70 165
1 �130/93•FP 184 0 91
12/3fl/93•FP 2 05 0 6�
2l13I94-FF 3 45 0 74
2113194-FP 2 28 0 50
Mean_ 10 0 0.9 6.5 0.9 3.0 O 9
Mean Removal 90.6� 85.9°�6 701
Std Dev.= 90 06 7a 09 26 12
95°�6 Conf Int= 51 0 3 3 0 0 4 14 0 7
Upper 95°,6 int.: 151 13 9 4 13 4 4 16
Lower 95� In�: 4 9 0 6 3 5 0 6 15 0 2
Maximum= 35 2 21 35 2 4 4 9 8 4 4
M�n�mum= 23 02 08 00 08 00
N= 12 12 24 24 12 12
FF F�rsi Flush (T�me Paced) Mean All Data Frst Flush 8� Flow Paced Qata We+ghed Equal�y
FP Flow Paced
Btank Cell Analys+s Not PerfoRned
TABLE 30 CSFTreatmentSystems
9/2J94
Compost Storm Water Filter (CSFT"")
3 Year Data Summary -185th Avenue Copper (Cu)
T
Frst Flush (FFl Mean All Data' Flow-Paced IFP�
Storm Event Influent Efftuenl Storm Event influent Effluent Storm Event Influenl Effiuent
Dete �ug� �u� Dete �u� (u� Date u L (u�
10P22-9t -G 36 71 1190 8l9191-G 46 30 17 70 8/9191 •G 46 30 17 70
10i25l91 •FF 60 810 8/31 l91 •G 3170 18 60 6131/91-G 3! .70 18 60
t 0128/91-FF 10/22•91 •G 36 71 119U 14122/91-FP 28 56 1120
1111�19t•FF 35 59 6 74 1�/22191•FP 26 56 11 ZO 10/25191-FP 6 95 6 79
11113I91 •FF 81 18 9 30 10l25l91 •FF ZO 60 610 10128l9t -FP 10 30 6 36
1 J19�9� -�F 25 96 7 22 1 p125�91 •FP 6 95 6; 9 11/13/91 •FP 12 8Q 6 81
�119/93-FF 34 90 8 29 10/28191-FF 11115�91 •FP 13 64 6 08
�J20r93•FF 15 60 6 32 O128r91 •�'P i 0 30 6 36 1/19193•FP 1 20 5 49
3�1a�93 FF 4� 60 9 50 i tn 2�91 •FF 35 59 6 74 2l20/93•FP 8 2a 7 3a
11121l93•FF 3610 15 40 11�13�91-FF 81 16 9 30 311/93-FP 1010 5 05
11130/93-FF 48 20 14 20 11/13�91 •FP 12 80 6 61 3�141�3-FP 15 90 8 61
2I13I94•FF 20 30 7 01 11/15191-F� 13 64 6 08 1113Ul93-FP i 170 8 48
11/19�91 •FF 25 96 7 22 121301�3-FP 1130 7 80
1019'93-FF 34 9Q 8 29 2113194-FP 10 60 4 05
1119�93-FP 11 ZO 5 49
2I20l93-FF 15 60 6 32
?120�93-FP 8 24 134
311t93•FP 1010 5 OS
3/14193•FF 4160 9 50
3�14/93•FP 15 90 8 61
11121l93-FF 5610 15 40
11t30193-FF 48 ZO 14 20
1/30193-FP 11 70 8 48
12'30193-FP 1130 7 80
tit 3194-FF 20 50 7 01
2��3�•FP 10 60 a a5
Mean= 379 95 258 90 164 86
Mean ��6 Removat 75.1°� 65 3� 47.5°�6
Std Dev= 189 31 183 38 112 44
959b CoM Int= 112 18 7 2 1 5 5 9 2.3
Upper 95°�6 Int: 491 113 33 0 14 5 22 3 10 9
Lower 9596 Int: 26 7 7 6 18 7 7 5 10.5 6 3
Maximum= 612 15 4 812 16 6 46 3 18 6
Mirnmurr� 15 6 6 3 7 0 41 7 0 41
N= 11 11 25 25 14 14
FF F�rst Flus� (Time Paced) Mean All Data F�rst Fiush 8 Ffow Paced Data We�ghed Equally
FP z Flow Pac�
Blank Cell Anal�rs�s Nat Pertormed
TA6LE 31 CSF Trea�merri Systems �nc
9lZ194
Compost Storm Water Fi ter �CSFT""}
3 Year Data Summary -185th Avenue Nickel (Ni)
Flrst Flush SFF� Mean All Oata' I Flow-Paced (FP)
St�rm Event influent Efiluent Storm Eveni Influent Effluent Stotm Event Influent Etfluent
Dete �uQ1U (u� Da� u IL,� �u� Oabe (uQILI u�l
10122•91 •G 4 34 3 00 8l9/91 •G 819�91-G
10/25�91-FF 510 3 20 8l31l91-G 15 20 13 20 8131/91-G 15 20 13 20
10/28/91 •FF 10122•91-G 4 34 3 00 t O/22l91-FP 12 00 17.28
1111?J91-FF 19 61 4 36 10122191-FP 12 00 17 28 10125J91•FP 318 610
11113191-FF 33 94 8 22 101�5191 •FF 510 3 28 10126191 •FP 2.69 2.00
rt 9�9� FF 1 t 95 190 t 0�2519� •FP 318 610 11113/91-FP 4 64 2.89
1019.�93-FF 17 80 6 40 101?8/91•FF 11115l91 •FP 4 58 189
2J201�3-FF 9 64 412 10128►9i -FP 2 69 20Q 1/19/93-FP 4 7Q 4 4Q
3114193-FF 15 90 4 2� 1 ti12191-FF 19 61 4 36 ?J20/93-FP 4 22 3.85
11/21 i93-FF 11 50 5 28 11/13191-FF 33 94 8 22 3/t 193-FP 4 48 5 86
11/30193•FF 47 8U 6 49 11113/91 •FP 4 64 2.89 3114193-FP 7 40 4 35
2'13194-FF 4 94 2 24 11/15191-FP 4 58 189 11130/93-FP 3 36 2 94
9�9� •FF 1195 90 12130/93-FP a 39 96
1l19193•FF 1? 80 6 40 2/13194-FP 3 91 111
1/19�93•FP 410 4 40
Z/20l93•FF 9 6a a 12
?�20l93•FP 4 22 3 85
3r� �93-FP 4 a6 5 88
3/14�93-FF 15 90 4 24
3/14193•FP 7 40 4 35
11121193-FF 11 50 5 26
11/30/93•FF 17 80 6 49
1Il30l�3-FP 3 36 2 94
12/30/93-FP 4 39 1 96
2�13l94-FF 4 94 2 24
2/13194 FP 3 91 1 71
Mean.: 13.9 4.5 9 5 4.9 5.8 5.3
Mean °,b Removal 67 6°b 48.t°,6 8.4°�6
Std. Dev.: 8 6 19 7 5 3 7 3 7 41
95°�6 Conf. Int= 51 12 3 0 15 2 0 2 6
Upper 95°b Int.= 19 0 5 6 12 5 6 4 7 8 18
Lower 95°A In�= 8 8 3 3 6 5 3 4 3 7 2 7
Max�mum= 33 9 8 2 33 9 17 3 15 2 17.3
Mirnmur� 4 3 19 21 17 2 7 17
N= 110 110 240 240 t30 130
FF F�rst Flush (Time Paced) Mean AII Data Flrst Fiush 7ow Paced Da� INe�ghed Equally
FP Flow Paced
Blank Cell Analys+s Not Perfonned
TA6 LE 32 CSF 7reatment Systems. Inc
912194
Compost Storm Water Filter �CSF�'"�
3 Year Data Summary -185th Avenue Vanadium (V)
Frst Flush F�F Mean All Deta• N Flow�Paoed iFP1
Storm Event Influent Effiuent Storm Event Influent Elftuent Storm Event Influent Efiluent
Dete u L �u� Date u L� (u� Dete u!L u�lL�
�o�Z2-9� -G 9 80 �s 7a 8�9�1-G
10/25t91 •FF 1610 11 10 Bi31/91-G 26.10 1260 Sl31191-G 2610 12 60
1 Of28l91 •FF 10122-91-G 9 80 16 74 10/22J91 •FP 4515 15 98
1� dt 2l91-FF 13 42 618 10122/91 •FP 4515 15 98 10125�91-FP 6 69 13 68
11 r131�1 •FF 177 QU 12 50 10125.�91 •FF 1610 11 10 1 Q128:�91-FP 7 09 811
11/191�1 •FF 27 98 4 9� 10/25,�91-FP 6 69 13 68 11l13f91-FP 19 00 10 50
1/19'93 FF 40 20 5 51 10/28/91 •FF 11/15191 •FP 14 71 6 78
2�2��93-F� 8 20 6 78 0�28�9i -FP 7 08 8� 1 r19r93-FP 15 0� 6 39
3na�93-FF 62 30 170 ��12�9� •FF �3 a2 818 ti20�93-FP 9 76 6 55
11P21f�3 a2 40 12 50 i u�3i9� •�F 177 00 2 50 3n�93•FP �a� 30 3 28
1113�193-FF 61 20 9 3� 11/13l91-FP 19 00 10 50 3�14l93-FP 14 24 919
?113194-FF 20 50 6 66 11/15l91•FP 14 71 61$ 11/30193-FP 9 49 7 78
11s19�91•FF 27 98 4� 1213fl193•FP 'l0 6fl 5 59
1d19'93-FF 40 ZO 5 51 2113f94•FP 1� 70 6 45
i119,'93•FP 15 00 b 39
2120193-FF 18 2� 6 78
Z120093-FP 9 76 6 55
311/93-FP 10 30 3 28
3114/93-FF 62.30 1178
3�141�33-FP 14 ZO 919
1112)193•FF 42 44 12 50
11130193-FF 61 20 9 30
��r3o�93-FP 9 a9 7 78
1?130193-FP 10 60 5 59
2113l�4-FF 20 50 6 66
2113�94•FP 13 70 645
28.8 9.1 155 87
Mean- 44.5 9 6
Mean 96 Removal 78 3°� 68 3� 441°b
Std Dev= 476 36 355 36 103 36
95°�6 Conf. Int= 28 2 21 14 2 14 5 6 2 0
Upper 9S°,� in�: 72 6 118 43.0 10 5 21.1 10 6
lower 95� int� 16 3 7 5 14 6 7 7 9 9 fi 7
Maximum- 177 0 16 7 177 0 16 7 45 2 16 0
Minimum: 9 8 5 0 6 7 3 3 6 7 3 3
N= 11 11 24 24 13 13
FF First Flush (Time Paced) Mean A�I Qata Frst Flush 8 Flow Paced Data We�ghed Equally
FP Flow Paced
Blank Cell Anafys+s Not Pertorme�
G ra h� 2 CSF Treatment Systems, Inc
9/2/94
CSFTM 3 Year Data Summary
Chromium (Cr), Cobalt (Co), Copper (Cu), Nickel (Ni) Vanadium (V)
45 T T
40
Infiueni
35 Effluent
30
25
ug/L
20
15
y
10
5
Cr Co Cu Ni V Cr Co Cu Ni V
Mean First Mean All Data
Flush Data Weighed Equaliy
�r r r s �r ar �r. �r
TAB LE 33 CSF Treatment Systems, Inc
9�1194
Compost Storm Water Filter (CSFT'"}
3 Year Data Summary -185th Avenue Boron �B)
Frst Flush F�F Mean All Data' Flow•Paced IFP)
Siorm Event Influent Effluent Storm Event Infl�nt Effluent Storm Event IMluent Efftuent
Date �u Il (ugll.) Date lY�`/ (u� Da�e ,,,�ug� (��►►L)
10122•91-G 9 90 70 OQ 81919i -G 819J91-G
10/25191 •FF 26 90 6170 Bl31/91-G 64 60 130 00 6+"31I91-G 64 60 130 0�
10�. i 0/22 91 •G 9 9U 70.Q4 10f2?191-FP 14 60 76 70
�12�91-FF 22 70 a0 70 10I22191-FP t4 60 76 70 10125I91 •FP 1 84 a0 2�
11.°13i91-FF 8 70 29 00 10/25,'91-FF 28 90 6170 10/2�91-FP 12 Bfl 36 90
11�19'91-FF �6 �0 �2 T0 10125►91•FP 80 40 20 ���3�91•FP 1a a0 30 00
1o1S,'93-FF 33 90 1140 SOl28l91•FF 11115/91-FP 2900 2110
2120/93-FF 2S 9� 23 30 10128l91-FP 12 80 36 9� 1M9193•FP 9 31 11 Sa
3�14l93-FF 2710 2� 20 11/12l91-FF 22.70 44 70 21�i93•FP 12 24 16 20
11;2�193-FF 29 80 S2 00 11113191-FF 8 70 29 00 311193-FP 10 80 5 21
11I30�93•�f 2610 36 60 11N3l91•FP 14 40 30 00 3/14/93-FP 14 50 19 80
2d13f94-FF 39 00 13 70 11/15191-FP 29 OQ 2710 11l30l93-FP 2610 28 30
11119�91-FF 1610 1210 12/30193-FP 28 00 1910
1119�93-FF 33 90 1140 2/13194-FP 9 97 27 00
1119/93•FP 9 31 1160
2�20r93•FF 25 90 23 30
2'20193•FP 12 20 16 20
3l�193-FP 10 84 5 21
3'14r93 FF 2710 23 20
3114193-FP 14 50 19 80
l/2r193-FF 29 80 52 00
11130193-FF 2610 36 60
1113019�-FP 2610 28 30
12130f93•FP 26 00 1910
2113�94-F� 39 00 13 70
2l13/�4-FP 9 9� 27 00
Mean, 24 2 34.0 218 351 19.7 36.0
Mean Removal f40 d9b f61 2°�b +82.9ib
Std. Dev.: 9 a 20 2 12 7 27 5 15 0 33 2
95°b Cont. lnt= 5 5 iZ 0 51 17 0 8 2 181
Upper 95°�6 Int: 29 7 45 9 26 8 461 27 9 54 t
Lower 95°�6 Int 18 6 22 0 16 7 24 t 11 5 18 0
Maximum= 39 4 70 0 64 6 13U 0 64 6 130 0
Mmimum- 8 7 114 8 7 5 2 9 3 5 2
N= >i 2a 2a 13 �3
FF Frsi Fl�sh ('i �me Paced) Mean All Data F�rsl Flush 8 Flow PaCed Data We�ghed Equally
FP Flow Paced
Blank Ce11= Anatys�s Not Perlortned
TABLE 34 CSF Treatmenl Systems
e�,�a
Compost Storm Water Filter (CSFT"''
Mean Removat Raies Cation Exchange Ions -1991-92
Storm Event Ca I Ca E K• I K- E r Mg I Mg E Na I Na E
Date (mqil) m /L (m�ll.) m /L �mqlll m tl� �mgll.l
8!9l91-G
8J31/91 G 24 80 48 36 3 74 13 29 2 84 1214 1135 1169
10/22-91 G 1187 9 47 3 52 9 95 3 54 2 65 2 91 3 64
10/2?191-FP 13 05 14 66 312 10 47 3 81 3 76 3 86 511
10f25l9i -FF 12 50 25 30 1 79 714 146 6 03 3 75 5 00
10f25191-FP 5 50 6 53 133 4 75 0 93 165 185 2 06
10128/91-FF
10/28/91-�P 6 66 14 51 139 d 94 105 3 64 2 46 2 52
11/12/91-FF 29 95 12 43 4 58 2 89 5 93 2 58 8 54 3 32
11/13/91-FF 34 80 13 70 4 47 3 39 7 53 318 413 3 24
11/t 3/91-FP 7 91 9 74 191 3 36 164 2 34 2 35 2 49
11115J�1-FP 2134 1196 217 2 33 3 33 2 45 5 92 2 57
1 t119/91-FF 18 5a 13 86 2 01 2.28 2 37 2�d a 02 3 7a
Mean_ 17.0 16 4 2.7 5 9 31 3 9 4.6 41
Mean 96 Removal 3 496 +1117� �25 4� 11.3�
Std Oev: 97 116 1 2 38 21 30 2.9 27
Maximum_ 34 8 48 4 4 6 13 3 7 5 121 114 111
Minimum: 5 5 6 5 13 2 3 0 9 1 7 19 21
N= it 11 11 11 11 11 11 11
I= tntlueM FF F�rsl Flush �Time Paced)
E= Ettluen! FP Ffow Paced
81ank Cell Analys�s Not Performed
r rt �rr �r a� a� �r �r a� �r �r �r r� rr
�r nr �r rr a� s ir �r a�
TA� L E 35 CSF Treatment Systems,' inc
8131/94
Compost Stornn Water Filter (CSF�"�
I�ean Removal Rates Cation Exchange lons -1992-93
s
StormEvent Ca•I Ca•E K•I K-E Mg-I Mg•E Na•I Ne-E
Dete (mglL1 m!L (mqlL1 m/L m� IL (mqlL) m L (m9IL�
1r19193 FF 31.a0 30 �0 218 97. 515 9 2� �0 30 9 67
111919�-FP 8 04 10 30 104_ 173 164 2 82 2 09 3 79
2/20193•�F 28 70 33 iQ 181 186 5 95 1140 7 87 8 95
2/20193-FP 16 40 1810 1 16 145 4 95 5 93 5 ZO 614
3/1193-FP 10 50 t 2 60 0 90 1 13 2 47 3 76 3 08 3 89
3/14�93•FF 28 �0 40 20 2 05 2.06 a 07 t 3�40 6�6 9 84�
3/14f�3 FP 13 80 29 40 1 16 189 3 32 9 23 4 24 7 80
IWean_ 1g6, 249 1.5 17 39 80 5.6 72
Mean 96 Removel a27.0°6 +12.5� �102 4°� ♦26.7�b
Std. Dev.= 9 7 113 0 5 0 4 15 3 9 2 9 2 6
Maximum= 31 40 2 2 2 21 0 13 4 10 3 9 8
Minimum= 8 0 10 3� 0 9 1 1 16 2 8 21 3 8
N= 7 7 7 7 7 7 7 1
I= Influern FF First Flush (T�me Paced►
E E(fluent �FP Flow P_aced
TABLE 36 CSF Treatmet�t Systems
8131194
COmpOSt StOrI� Water Fllter �CSF
Mean Removal Rates Cation Exchange lons -1993•94
Storm Event Ca I Ca E K- I K- E Mg -1 Mg E Na I Na E
Date m/L m IL m�l (mqlL) m!L (mq1L) (m�L (mg/L)
11121�4 FF 16 40 1810 2 37 184 2 50 5 42 4 46 3 64
11/30194 FF 22 30 13 40 192 1 51 311 3 64 4 00 3 66
11/30/94 FP 510 6 95 0 80 1 10 0 82 1� 170 2 26
12/3Q/94 FP 9 04 7 89 141 0 93 137 2 22 2 27 2 49
2l13l94 FF 27 Oa 13 70 2 07 123 4 48 4 30 8 42 4 50
2113l94 FP 10 20 33 00 1 13 170 2 46 12 20 2 86 8 64
Mean_ 15 0 15.5 1.6 1.4 25 5 0 4 O 4.2
Mean Removal +3.3°b 14 3°lo t10179b ♦6.296
Std. Dev� 8 4 9 5 0 6 0 4 13 3 8 2 4 2 3
Maximum= 210 33 0 2 4 18 4 5 12 2 6 4 8 6
Minimutn_ 51 7 0 0 8 0 9 0 8 2 0 1 7 2 3
N= 6 6 6 6 6 6 6 6
r
I=1n0uenl FF Firsl Flush (Time Paced)
E= Ernuern FP Flow Paced
r� w�r r r�r a� a� r r�r r r��
TA6LE 37 CSF TreatmeM Systems �R�
9/3194
Compost Storm Water Fiiter �CSFT"'�
3 Year Data Summary 85th Avenue
Oil Grease, Petroleum Hydrocarbons
Oii 8� Grease M Petroleum Hydrocatbons
Storm Event Influent Effluent Perc�nt Influeni Efflueni Percent
Date (molL) �m�ILI Removei (malLl �mq.�L1 Removal
10125191-FF 4 90 <100 79 6°l0 3 90 c0 60 8� 6°�
11J13;91-FF 2 70 c0.50 81,5QOo
11119l91 •FF
1119.'93-FP 8 20 0?2 91 2% 6 00 c0 50 917%
11�21193•FF 160 c0 50 68 8°Jo 1 10 cQ 50 54 5%
i 1130193•FF a 30 1 a0 67 4°l0 3 30 0 98 7� 3°la
Mea�= 4.8 0.9 3 7 0 6
Mean °b Removei 80 9 Q
Std Dev.= 2 7 0 4 8 0 2
9596 Con1 Int= 2 7 0 4 14 0 2
Upper 95°,6 int 7 4 13 5 2 0 8
Lower 95°a Int 2 i 0 5 2 3 0 4
Max�mum= 8 2 14 6 0 10
Mimmum= 16 0 5 1 1 0 5
N 4 4 6 6
FF First Fiush (Time Paced)
FP Flow Paced
81ank Ceil Analys�s Not Perfortne�
c= 8elow Dete�bon �m�. Detect�ot� �m�t Dunng 1991 Was 10 mgll For 08G And 0 6 mgll. For P�t H, De�tect�on
�md Was Improved To 0 5 mg/l For Both ln 1993
G ra h 13 CSF Treatmeni Systems, Inc
p 9/2/94
CSFT� 3 Year Data Summary
Oil Grease; Petroleum Hydrocarbo�s
5
a Intluent
Effluent
3
mg/L
2
7
I
1
Oil Grease Petroleum Hydrocarbons
Mean All Data
Weighed Equally
r� �w �s �r r a� rr a� r �r r r■� �■s� �r
i r i
TABLE 38 CSF Treatment Systems
9/5/94
Compost Storm Water Filter (CSFT""�
3 Year Data Summa�ry Peak or Surge Loading Events
Peak load Peak load Peak Load r Pe�k load r 3 Year Mean r 3 Year Mean 3 Year Mean
Constiluent Date Inttuent E�luent 9� Removal FF Iniluent FF ENiuent FF -�6 Aemoval
Soltds 8� Nutrlents
Turb�d�ty (NTU) 11113191 FF 350 00 S 00 97 7°r6 143 91 19 65 86 3�0
Total Suspended Sof'uis (TSS mgll)} t 1l13191 FF 1610 00 3120 981°� 380 30 24 50 93 6%
Total Volatde Suspended Sol�ds (TVSS mgll..) 11l13/91 FF 170 00 6 8� 9f 0°r6 39 95' 4 47' 88 8°�
Chemica) �cygen Demand (C00 mgJL)) 11/13191 FF 644 00 46 00 92 9% 211 11 43 70 79 3°�
Total Phospt�us (T PO4 mglL) 11113/91 FF 4 400 1000 77 3� 1224 0 521 57 4%
Total K�etdahl N�trogen (TKN mgllj) 11I13J91 FF 8 720 0 800 90 B°/d 2479 0 687 72 3°�
Ammon�a Nitrogen (NN3 N• mglL) 2l1319�1- FF 0 276 0 042 84 8°� 0144 0 051 64 6%
Metels
Alumirtum (AI ug/l) 11/13191- FF 41,080 0 2,085 0 9d 9'r6 11,180 7 1,316 2 88 2%
Iron (Fe uglL� t119/93 FF 130,OQ0 0 934 0 99 3% 27,5151 1,8201 93 4%
8anum �Ba ttgll} 11/13191 FF 425 90 31 50 92 6% 145 34 02 76 79�
Manganese (Mn uglL) 11/13l91 FF t 264 00 58 04 95 4�Ia 336 79 43 56 871�a
Lead (Pb ugil) 1 t/30193 FF 104 04 14 30 86 3°/0 63 02" 8 56" 86 4°k
Z�nc (Zn uglL) 11113/91- FF 556 40 37 54 93 3% 256 22 36 02 85 9°l0
Chrom�um �Cr uglt) 11/13l91 FF 52 OS 2 99 94 3°� 1915 3 38 82 3�0
Cobalt (Co ugll� 11/13191 FF 3516 145 95 9% 9 97 0 94 90 6°/0
Cop�r �Cu uglL)
11113�91- FF 8 t� 8 t 5 a0 8109�0 37 90 9 a5 75 �°io
N�ckel (N� ugll) 11/13,`91 FF 33 9� 2 92 9°�6 44 46 9 63 78 3%
Vanadium (V uglL) 11/13/91 �F 177 00
r
One Year Data Or�y FF e First Flush
Two Years Oata Oniy
G ra h 14 CSF Trealment Systems, Inc
9/4/94
CSFT"" 3 Year Data Summary
Turbidity, TSS COD Peak Load Event vs. 3 Year Mean First Flush Data
1800
1600
Influent
1400 Eftluent
1200
mg/L
(TSS 8 COD) 000
NTU
(Turbtdity) 800
6��
400
200
p
Turb TSS COD Turb TSS COD
Peak Load Event 3 Year Mean First
Fiush Data
i �r r rr �r �r a� �r r �r r �r
r ri �r r ir
G ra h 1 5 CSF T�eatment Systems, Inc
9/5i94
CSF 3 Year Data Summary
T-PO4, TKN NH3 Peak Load Event vs. 3 Year Mean First Flush Data
9
Influent
Effluent
6
5
mg/L
a
3
2
1
T-PO4 TKN NH3 T•PO4 TKN NH3
Peak load Event 3 Year Mean First
Flush Data
G ra h 1� CSF Treatmern Systems, Inc
p
9/4l94
C.7F 3 Year Data Summary
AI Fe Peak Load Event vs. 3 Year Mean First Flush Data
140000
120000
influent
��rl
100000 Effluent
80000
uglL
60000
40000
20000
0
AI Fe AI Fe
Pe�k Load Event 3 Year Mean First
Flush Data
�r r r r r r r� r �■r �r r�
r� i r �■�r a� r �r �r r s
G ra h 17 o CSF Treatmenl Systems, Inc
p
CSF 3 Year Data Summar 9�4�4
y
6a, Mn, Pb, Zn Peak Load Event vs. 3 Year Mean First Flush Data
1400
1200 influent
1000 Effluent
800
ug/L
600
.r
400
200
0
Ba Mn Pb Zn Ba Mn Pb Zn
Peak l.oad Event 3 Year Mean First
Flush Data
G ra 1� CSF Treatment Systems, Inc
p
CSFTM 3 Year Data Summar 9/4/94
Y
Cr, Co, Cu, Ni, V- Peak Load Event vs. 3 Year Mean First Flush Data
180
160
Infiuent
140
Effluent
120
ug/L 100
80
60
40
20
Cr Co Cu Ni V Cr Co Cu Ni V
Peak Load Event 3 Year Mean First
Fiush Data
r■� r� �r �r r��� r a� r� i r■r �r r
TABLE 39 CSF Treatme�t Systems
9�a�a
Compost Storm Water Fi ter �CSFT'")
Comparison 3 Seasons Mean Data
1991-92 Storm Season 1992-93 Stonn Season 1993-94 Storm Season
Mean Mean Mean Mean Mean Mean
Influent Effluent Removal Influent Eftiuent Removal 1 Influent Effluent Removal
Turbid�ty (NTU}
Alt Dat� 100 7 t 5 9 84.2°�6 74 0 16 0 78 4°� 90 2 19 5 78 4°b
F�rst Flush Data 2S3 3 16 7 93 4°�6 1 t 5 5 17 0 85.3°�6 132 7 24 7 81.4°,b
TSS (mg�L)
AII Oata 275 0 14 4 94 8gb 149 9 17 2 88.5� 2a8 0 291 86.096
F�rst Flush Data 698 7 11 9 98.3°,6 268 0 1 91.4°,6 329 7 36 3 89.0°�b
COD (mg/l)
AI9 Data 148 6 49 2 66 9°�6 104 0 24 7 76.396 148 7 38 7 74 0°�b
First Flush Oata 334 7 35 0 89.5°b 158 4 28 4 82.1°,b 2417 48 8 79 8°b
Total P (mgll)
All Data 1 31 0 78 40 5°ro 0 47 0 22 53 2�6 0 55 019 65.5°�
F�rst �lush Data 2 75 0 90 67 3°� 0 73 0 23 68.9g6 0 8t 0 22 729°�b
TKN (mglLj
AII Daia 2 04 0 90 55.9°ro 0 95 0 47 50.5°� 1 56 0 52 66 7°,6
F��st Flush Data 4 37 0 70 84 0°� 143 0 56 60.8� 2.42 0 75 69.0°�6
Fe �ugsl)
AI� Data 13.3281 1,4691 89 0°�6 23,39� 1 t,05a 4 95.5°� 8,546 3 1,745 0 79 6°�
F�rst Flush Data 25�980 0 1.556 0 94 0°6 54,466 7 t,277 0 97.5°� 13,930 0 2,383 3 829°�6
Cr (uglL)
Att Data 12.77 4 95 612°� 9 80 2 50 74 596 12.04 4 30 64 3°�b
F�rst Flush Data 27 76 211 92.4°� 16 70 3 20 80.8� 17 60 4 78 T28°b
Cu (uglL)
AII Data 2919 9 73 66 7gb 19 70 7 20 63.5°�b Zb 40 9 49 64196
Firs1 Flush Data 47 58 7 75 e3.79b 30 70 8.00 73 9°b 4160 12 20 70.7°b
Pb (uD�L)
aii Data 3a 90 5 20 8519� a0 �5 7 aa 81.a�
F�rst Flush Data 6160 6 80 89.0°b 64 40 10 33 84.0°�b
Zn (ugiL)
AII Data 188 73 22 04 88 3°,� 147 70 35 75 8°�6 188 78 37 97 T9•9°,b
F�rst Flush Data ��3 60 25 60 92.8°,b 240 �0 4a 70 631°b 29167 49 43 831°�6
TA�LE 40 CSF Treatmertl Systems, Ir►c�
9/41'94
Compost S#orm Wa�ter Filter (CS 'F TM
Comparisonr• 3 Seasons Mean Data
1991=92 Sto�m Seeson i 992=93 Storm Season 1993•94 S'�orm Season
iNean Mean 9b Mean Miean �6 Mean Mean
Influenl Efiluent Removal Intluent EHluent �Removal Iniiuent EHiuent Removal
Total P ((m�IL)
Mean All Dala 1 29 0 78 39 5� 0 d7 0� 22 53 2°,6� 0 55 019 65.5�
Soluble P (m8/l.)
Mean AII Oata 013 0 49 �276 996 0 06 "013 116 7� 0 O7 0 09 +28.6�
Nit�ate-N (mgll)
Mean -'Aq Data 0 29 0 40 +37 9°� 0 73 2 09 +/86 3�6 0 61 181 .196 Tg6
r r �r r a�r� e■� �e�e r
�r r a� r a� s
GRAPH 19 CSF Trealmern Systems, Inc
CSF Cor�nparative Results 3 Storm Seasons 9/5/94
Turbidity
Mean All Data and First Flush Data -185th Avenue
300
p influent
250 Eflluent
200
NTU 150
100
50
0
Mean F F Mean F F Mean F F
1991-92 1992•93 1993-94
G RAPH 2� CSF Treatment Systems, Inc
CSFTM Comparative Results 3 Storm Seasons 9�5/94
Total Suspended Solids (TSS�
Mean All Date and First Flush Data -185th Avenue
700 T 7
600 influent
500 Effluent
400
mg/L
300
200
100
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
i r i r
r �r
G RAPH 21 CSF Treaimern Systems, Inc
CSFTM Comparative Resuits 3 Storm Seasons 9/5/94
Chemical Oxygen Demand (COD)
Mean All Data and First Flush Data -185th Avenue
350
Infiuent
300
Effluent
250
200
mg/L
�50
�oo
50
�r
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
GRAPH 22
CS�TM Com arative Results 3 Storm Seasons 9/5/94realment Systerns �nc
p
Total Phosphorus �T-P)
Mean All Date end First Flush Data -185th Avenue
3
2.5 Influent
Effluent
2
n�g/L 1 5
1
a'
T
05
r
..y
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
r r �■r r �r
i
G RA PH 23 CSF Treatment Systems, Inc
CSF� Comparative Results 3 Storm Seasons 9/5/94
Total Kj�idahl Nitrogen (TKN)
Mean All Data and First Flush Data -185ih Avenue
4.5
4
Intluent
35
Eftluent
3
2.5
mg/l.
2
A
1.5
a
1
0.5
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
G RAPH 2�4 CSF T�eatme�t Sysfems, Inc
CSF Comparative Results 3 Storm Seasons 9��4
Chromium (Cr)
Mean All Data snd First Flush Data -185th Avenue
30
25 Infiuent
Ef�luent
20 i
ug/L 15
10
5
1
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
r
GRAPH 25 csF T�eatment systems. �nc
CSFTM Comparative Results 3 Storm Seasons 9�5/94
Gopper (Cu�
Mean All Data and First Flush Data -185th Avenue
50
Iniluent
40
Effluent
30
r
ug/L
20
i'
1 l y
L
X
10
O
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
G RAPH 26 CSF Treatmer�l Sysfems inc
CSF Comparative Resuits 3 Storm Seasons 9/5/94
Iron �Fe)
Mean All Data and First Flush Data -185th Avenue
60000
50000 Influent
Efiluent
40000 i
ug/L 30000
20000
10000
0
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
r i
�r r ��1
GRAPH 2 7 CSF Trealmenl Systems
CSFT� Com arative Results 3 Storm Seasans 915l94
p
Lead (Pb)
Mean Alt Dete end First Flush Data -185th Avenue
70
60
t iniluent
I•
50 Effiuent
I
40
uglL
30
20
10
a v�
0
Mean F F Mean F F
1992-93 1993-94
G RAPH 28 CSF Treatment Systems �nc
CSFTM Comparative Results 3 Storm Seasons 9/5/94
Zinc (Zn�
Mean All Data and First Flush Dat� -185th Avenue
400
350
Infiuent
300 Effiuent
250
uglL 200
150
100
50
p
Mean F F Mean F F Mean F F
1991-92 1992-93 1993-94
r i 1
F
0
TA� LE 41 CSF Treatmern Systems �Rc
Comparison Stormwater Influent and CSFTM'
Etfluent to Receiving Water Quality -1991 Data
Frst Flush Mean CSF��'" Mean Beaverton
Poilutant Urnts In�uent Influent Effluent Creelc
{Mean Nov 19911 (Meart All Data 1991 (Mean All Dat�1 (Grab •1012?1911
TS mgll 383 08 155 69 232 00
TDS mgll 108 OS 141 23 218 00
TSS mgn 698 70 275 03 �a�37, 5 60�
TVSS mgA 98 60 39 95 4 47 512
C4D mg� 334� 70 148 57 `49"24 18 00
T•P�4 mgA 2 75 131 0 78 0 29
S-PO4 mgll 0 09 0 32 0 08
TKN mgR 2 04 0 90 0 65
NO�N mgA 0 30 0 40 0 46
NH3•N mgll 010 0 06 0'03
A! ugll� 877515 1134 44 4�s ao
B ugll 2104 50 39 i 5491
Ba ugjl 116 24 28 63�� 5185�
Ca mg�l 16 99 16 41 21 Q8
Co ugtl 1,7 93 8 40 106 100
Cr ugll 27 76 t 2 77 4 95 2 01
Cu ug�1 a7 58 29 9 9 73 B 96
Fe ug11 13326 09 146912 1219 00
K mgA 2.73 5 95 2 85
Mg rtigli 313 3°92 7 36
Mn ug/l 282�07 35 54 1016 Oa'
Na mgA 4 65 4 t 3 14 79
Ni uq�l 2t 183 t 0 66 5 82 3'32
v ugn 3� 00 o� a 59
Zn ug/l 353 60 188 73 22 04 3fi 82
reat+r�� Sysie�5.lnc,
�SF T
.e�
GR� ece��►� g
or 1 $O S H �NFI.UE
r F as T Ftv
M �AN iNF����
M N E��LUEN
0 0 VEAT�� CREE
o gEA
do
a
00
00
5 o o
00
o a
0 0-_ `"'t
00
�og
0 0 a o,
oo�
o
q o o a �-�'l
0 0
10_0 o0
do o 0
a�-- oa
+�o'�.
oo
2 00 vo
o° o�
00 on
°o o_ o°
0
w
1,(� o•� d ,o o 0
o o,o
00 o�a COD
aa
o d- 'r'
0 TS$
Sp�.1[�s
1/�
GRAPH 30 CSF�Treatment Systems, Inc
CSF Comparison to Rec�iving� Waters -1991
3
o FIAST FLUSH INFLUENT
25 0 00
o
o
MEAN INFLUENT
o
0
2 I
o AAEAN EFFLUENT 1
o
D 1 1
BEAVERTON CREEK
rng/l �.s o�< o
o
o t�
a
o
o ti
o
o 5
o
a
o
o
o
�.5 0
o f
o
o
o
o
0 0
T-PO4 TKN NO3-N NH�3-N
'NUTRIEIVTS
31 CSF Trealmen! Syslems. Inc
C�FTM �omp�rison to Receiving �/aters -1991
i T..
4 FIRST FLUSH� INFLUENT
00
35U MEAN INFLUENT
o
0
MEAN EFFIUENT
300
�Q
o
,o
BEAVERTON CREEK
250 o
o
o�
o
o�
ugll z�
0
o
0
o-
o
1'S0
o
o r
o
r
D,
V�! O
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q
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o
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Co C r Cu Ni Zn
HEAVY ME, �14LS
r s� s� ■■o
i
1�A�I�GEME�i11�'
d�
I
Version 1 5
S�OPm��/a�E9r� IVIa11ag�I�'�e1a�
2035 AI.E. Columbia Blvd.
Portland, OR` 97211
Ph. (503) 2�0-33g3
Fax (503) 240-9553 j
d 1-800-5�8-4667
www.stormwatermg� com
sroRn�warER�
MANAGEMENT
o
This product manual has been pnepared to describe and facilitate the use
of the CSF� Stormwater Treatment System. This manual is periodically
upda�ed to incorporate additfons and refnements. Feedback from those
using this manual is invaluab/e to improving jts conten� and mainraining
the highest level of service. If you would like to call us with your
comments, p/ease call our toll-fnee number 9-80�-548-4667.
Version 1.5
Released December 10,1997
Stormwater Management
2035 N.E. Columbia Blvd.
Portiand, OR 97211
U S Patent No 5,624,576, and other U S and foreign Patents Pending
STORMWATER MANAGEMENT 12/10/97
STORMWATER'"
MANAGEMENT
Stormwater Management cont�nuously stnves to improve and develop new appiications
and technologies In order to keep you informed of the latest developments, please fill
out the form below and mail or fax �t to us We will keep you updated with all of the
latest information on Stormwater Management's CSF� Stormwater Treatment System
If you have questions concemmg this Design Manual or need additional information
applicable to your pro�ect, please contact us at (503) 240-3393� our toll free number
(800) 548-4fi67, or visit us at our website www stormwatermgt com
PLEASE F/LL OUT AND RETURIV FORM TO:
STORMWATER MANAGEMENT
2035 N.E. Columbia Blvd.
Portland, OR 97211
Fax: (503J 240-9553
YES! Please send updates for my CSF� Design Manual as soon as
they are available
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Title
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STORMWATER MANAGEMENT 12/10/97
I
Federal involvement in water quality issues began m 1948 when Congress enacted the Federai Water
Pollution Control Act to provide fundmg for states to construct wastewater treatment facilit�es However,
it was not unbl 1972 that the federai govemment took charge of regulat�ng the quality of the Nation's
water supplies by passmg a total revision of the 1948 Federal Water Pollubon Control Ac� The 1972
amendments to the Federal Water Pollubon Control Act referred to as the The Ciean Water Act
("CWA")) was passed with two maJor strategies �rst, it mandated that the federal govemment provide
finanGal assistance for die construction of local sewage Veatment plants so that wastewater is treated
before it is reteased mto waterways Second, it required �at all industnal and municipal wastewater
discharged directly mto navigabie waters receNe a permit through the Nadonal Pollutant Discharge
El�m�nation System ("NPDES") Navigable waters mean waters of the Urnted States, including terr�tonal
seas, mterstate waters, waters used m commerce (past, present or possibly future), lakes, nvers,
streams, certam wetlands, mudflats, sandflats and ponds Ci�es were to ach�eve secondary treatment of
wastewater (at least 85% removal of conventional wastes) to meet water quality standards Industnes
were to meet pollut�on controi limits first by use of Best Pract�cable Technology and later by improved
Best Available Technology Both ma�or strateg�es of the CWA are supported by research activities
authorized by the law, plus permrt and penaliy provisions for enforcement These programs are
adm�nistered by the Environmental Protect�on Agency (EPA), while state and local govemments have
ma�or day-taday responsibility for implemenhng the law
The CWA irnt�ai strategies pnmar�ly focused on controlimg water pollut�on from mdustnal processed
wastewater and municipal sewage known as "point source" water polludon Because of the CWA, the
Un�ted States has expenenced success at manag�ng po�nt source water pollufion as evidenced by
cleaner water ways today in companson to those years precedmg the 1972 amendment Yet, as
mdustnal and municipal sources have abated pollut�on, uncontrolled non-pomt sources have become a
relahvely larger portion of remammg water qual�ty problems contnbubng between 50% to 80% of the
Nation's water pollution accordmg to vanous reports The term "non-po�nt source" water poliut�on (also
known as "wet weathe�', "stormwater� and "urban runofP° pollubon) is defined as water runoff, snow melt
runoff and surfa� n.inoff and dramage Non-pomt source pollutants mclude heavy metals, damaging
nutnents, sed�ment and pest�c�des The EPA and state water quality authonties have idenUfied wet
weather flows as the largest remammg threat to water quality The 1992 Nat�onal Water Quality
inventory Repo�t to Congress concluded °that stormwater runoff from a number of d�ffuse souroes
inciuding urban runoff is a leading cause of water quality impa�rment"
In Febn,ary 19g7 Congress responded to publ�c concem that, despite much progress, significant water
quality problems persis� Congress, after 6 years of cong�essional efforts, ovenNhelm�ngly passed the
1987 amendment tc the Ciean Water Act known as the "Water Qual�ty Act of 1987" Among �ts many
provisions, the 1987 legisla�on focused on four mam areas
Water fox�ns These are substances such as heavy metals and organ�c chem�cals that may
have a sever, poss�bly irreversible� effect on human health and/or the environment These toxms enter
water systems by mdustnai discharge, airbome depositions and stormwater runoff
Increased state r+espons►bil�ty Th�s shrfts water quality reqwrements and respons�bdit�es to the
states and requires states to idenbfy bodies of water that do not meet water quality standards, identify
and regulate sources of toxic contammants, and create p�ograms to control non-QO�nt sourcce Qollu�on
Reduce murncrpa! a�d This phases out federal assistance for construcbon of mun�cipal
wastewater treatment plants
Non polnt sour�es This program requires states to develop and implement programs to controi
non-ooint sources of aollut�on firom urban areas, plus construction, �orestry, farms, and minmg sites
One clear regulator emphasis m these four main areas of the 1987 CWA amendment was the
mcreasing attenUon to non-pomt sources of water pollutants Acxordmgly, EPA's clean water programs
are now focusing to a large extent on solvmg non-pomt source pollufion problems However, because
non-pomt source pollutants cannot be traced to any single idenbfiable (pomt) source and because of the
huge number of non-point sources, remedies for non-pomt sour�ce pollutants are more complicated than
those for point sour� poliutants As a resu�, non-pomt source polluhon presents a formidable chailenge
to policy makers
Section 402 (p) was added to the Clean Water Act in 1967 to require implementation of a comprehensive
two-phase approach for addressing stormwater discharges under the NPDES program However, no
offic�al actions were taken until 1990
In 1990 Congress estabi�shed firm deadlmes and pnonUes for EPA to require perm�ts for discharges of
stormwater that is not mixed or contaminated w�h househoid or industrial waste water EPA's act�ons
followed on November 16, 1990 (amended m 1992) with the adopUon of Phase I regutabons pertammg to
stormwater discharge mto sur�ace water bod�es as defined by 40 Code of Federal Regulabons Sec 122-
124 Phase I established that a NPDES permit is required for stormwater discharge from municipalit�es
with separate storm sewer system that serve a population greater �an 100,000 and certain defined
industriai activiUes Under the 1987 CWA amendment, small c�ties were to be sub�ect to stormwater
permit requ�rements in October 1992 In October 1992, Congress gave EPA and small cides unt�l
October 1994 to comply w�th the law After October 1, 1994, the permit exemption for smaller ci�es
expired, and techrncally they are m violat�on of the CWA for d�scharging without a permit, but EPA
offic�als have said they would not take enforcement act�ons agamst these c�t�es Phase I also includes
departments of transportation, flood control distncts, spec�al distn�ts and port authoribes The permit
applicant may be e�ther the property owner, the consuitmg engmeer or the development contractor To
receive a NPDES perm�t, the municipality or spec�fic industry has to develop a stormwater management
plan and idenbfy Best Management Practices for stormwater treatment and discharge
Best Management Practices (8MP's) are measures, systems, processes or controls that reduce
pollutants at the source to prevent the pollut�on of stormwater runoff discharge from the s�te BMP's can
be used to direct polluted runoff to natural or other types of treatment NPDES does not require spec.�fic
BMP's because the practice should be selected on a case-by-case basis dependmg on the partrcular
acbvibes ongoing at the facility and other factors These factors might include quality and quantity of
ramfall reaching the site, the area of land ava�lable for management pract�ces and the overall direct and
indirect cost of implement�ng the practices
Amendment to Requirements for NPDES Permits for Stormwater Discharge Under Section 402 (p)(6� of
the CWA was effective on August 2, 1995 This amendment establ�shes a"commonsense approach"
which will provide for a sequential appiica�on process for all Phase II stormwater discharges Phase II
stormwater discharges �nclude all discharges composed ent�rely of stonnwater, except those specificaliy
classified as Phase I discharge Phase II �egulations are currently in draft fiorm for review
The EPA is the federal goveming body of the CWA However, because of the 1967 CWA fiocus of
increasmg state responsibility over water qualrty standards, much of the implementat�on and
enforcement act�ons have been delegated to the States and their local Junsd�ct�onal authonty Although
the CWA is the foundation for stormwater discharge regulations, each of these States and local
�unsdictional authonbes have interpreted the CWA federal regulations independenUy and enacted their
own stormwater discharge rules and regulabons Accordingly, stormwater Best Management Pract�ces
and regulat�ons can vary between �unsdicbonal authorities
However, EPA delegat�on of environmental �egulatory implementation and enforcement to the state level
has come into quesbon The EPA has been at center of Congress's recent efforts to re-engineer
govemment interact�on and responsibilities Some of EPA's pro�ects are mtended to focus on tl�e
implementation of current laws One specific mitiafive of the EPA is to focus on the water quality
program in the water quality program many of the initiatives start from a watershed approach to
problem-solving This approach recogn�zes that nemammg water quality problems requine attenrion to
non-pomt pollubon sources managed on the basis of geographic area defined by natural or hydrologic
features mstead of poliUcal boundanes
f
1 0
A. Introduction
Fit4er nAedia Characteristics
2. Pollutant Removal
3. System, Hydraulics
Figure 1. Pre-cast Concrete Vau/t
Figune 2. Radia/ F/ow Filter Cartridge
B. Design Constants
�0 STORMWATER MANAGEMENT 12/10/97
T1
sroRMwar�R�
MANAGEMENT
Stormwater Management �s a progressive, product onented company whose mission is
to develop innovative stormwater treatment solutions for engineers, developers and
�ur�sdictional authonties to help keep our water ways ciean
Since 1991, Stormwater Management's patented signature product, the CSF�
Stormwater Treatment System (CSF�, has been treating stormwater runoff from small
single retail sites to large urban parking lots, residential streets, urban roadways and
freeways
The CSF� Stormwater T�eatment System uses Radial Flow Filter Cartridges housed in
standard size pre-cast concrete vaults or cast m place vaults to produce a self-contamed
stormwater filtenng system The filter systems are instailed in-line with storm drains
The fiiters work by percolating stormwater through the cylindrical cartndges containing
CSF� filter media The filter media traps particulates and adsorbs matenals such as
dissolved metals and hydrocarbons Surface scums, float�ng oil and grease are also
removed After passing through the fiiter media, the stormwater flows into a collection
pipe or discharges to an open channel drainage way
CSF� Stormwate� T�eatment Systems are designed to be very effectwe for the
treatment of first flush flows, particularly those storms early m the rainy season In
generai, the CSF�'s efficiency is highest when pollutant concentrations are highest
FILTER MEDIA CHARACTERISTICS
In the Autumn, deciduous trees begin to
drop their leaves in preparation for the
winter In meVopol�tan areas the leaves
accumulate, clog storm drains, and may
potentially cause local floodmg To prevent
this, many aties have leaf coilection
programs Leaves are e�her swept up or
brought to drop off points and then
uansported to landfills, municipal or
commerc�al composting facilities
Using a feed stock of pure dec�duous
leaves (i e no mixed yard debns such as
prunmgs and g�ass) Stormwater
Management composts leaves collected by
O STORMWATER MANAGEMENT 12/10/97
fi2
the C�y of Partland, Qregon, over a penad of e�ght months into a mature s#able
compos# Stormwater Management then pracesses the finrshed compast into a granular
med�� which resembtes soil and has no odor`s C�nce c�mplete, the media has physical
and chern�cal charact�r�st�cs desira�ble for the f Itrat�an of stormwater
Pallutan# Rerna�rai
There are three prirnary pollutant removal mechanisms perfQrmed by the �SF� f�l#er
media These mechanisms are m�chan�cal filEra#�on to r�move sediments, ch�mical
proc�sses to remove soluble metals, and adsarpt�on praperties to remove oils ar�d
greases.
Sedimen#s
The media is contained in a senes af radiaf t�ow filter cartndges which have a seven inch
thick layer of the media #hrough whlch stormwster passes Sediments are filtered out an
bath tF�e surface af the filter and the surFaces af granules throughaut the med�a matnx
As sed►ments are remaued fram stormwa#er runoff and accumulate on the surface of the
filter, the permeabil�ty will decl�ne thus requcnng facil�ty rna�nfenance h�ia�ntenance
cauld include period�c or�fice ad�us#ments, back flushing, or media remava�l and
replacement Sediment remov�l will vary w�th part�cie srze distributian, but remov�l h�s
b�een as high as 95°!0
H�avy Me#als
fihe media also ac#s as a chemical filter to remave d�ssolved ionic pollutants such as
heavy m�tals, including lead, copper, and zinc The mechanism vf ca#�or� ex�hange is
provided by humic ac��s, wh�ch �re a produc# af lrhe aerobic biolog�cal act�vrty dunng the
camposting pracess Heavy metal removal rates vary fi�am 65°I� to 95°Ip
O�Is Greases
�temoua� of ails and greases (a�G� and ather organi� �c�mpounds �s �acilitated by the
h�gh organic carbon content of the rrted�a The syst�m perfarms best when �&G
laadings are le�s than 25 mg1l Measured remava! rates are as high as g�°/a
Q�tailed performanoe data are available upon request F�emoval af ather pollu#ants such
as chlonnated hydro�arbons has be�n demanstrated. Howe�rer, �n #he case o� specif�c
targe# pollutants we recomm�nd a charactenzatian study b� performed �n our laboratory
z
M
Y
p
k p
I� z
z rp re a
�eaf compos# is pra�cessed
M 3 frrto a petle�ized f�ffer
'i media.
_v
STQRIVIINI�TER 1VI�►NAGEMEfVT 12110197
T3
SYSTEM HYDRAULICS
CSF� Stormwater Treatment Systems are sized to treat the peak flow of a water qual�ty
design storm, as �t passes through the filter The peak flow is determmed by
calculations based on the contributing watershed hydrology and using a design storm
magnitude The design storm is usually based on the requirements set by the local
regulatory agency The particular s�ze of a CSF� is determined by the number of Radial
Flow Filter Ca�tndges required to treat the peak stormwater flow
T�a�l'�Io BoaNng L�d
Batfie
r-
r
ys.
Yt�tii�ip
I
Y��1��
s�
yN^`
y►1
�1adeMdnde ManNbld
Figure 1.
The typical unit configuration as diagrammed by Figure 1 consists of an inlet bay, baffle�
cartndge bay� an overfiow baffle, and outlet bay The inlet bay serves as a gnt chamber
and provides for flow transition into the cartndge bay The flow spreader provides for
the trapping of floatables, oils, and surface scum Water enters the cartndge bay
through the flow spreader and tiegins to pond As shovm in Figure 2, the water ponds,
infiltrates through the media into the mner dramage tube and begins to raise the float
Once the ponding submerges the cylmders, the float �nnll pull loose the semi buoyant ball
and generate a siphon effect which greatly increases the flow potential across the filter
media
O STORMWATER MANAGEMENT 12/10/97
T4
Radial Flow Cartridge Filter Friming �ystem I�i�gram Pos� �''1ow
I Air Reiief vatve
`Threaded Cap�
x�d
Flaar
I
Filter Surface
�i
a e��������� s� li i
��a�����m
;w s���+ar��+
i m�$z
��£l�`��� f i i �t8�'
i
Inner I]�ra�nage Tube
i
r
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Baoy�at Ball
I
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w�►���r��
a���m�a��W�`���$�rrs a���aa
ectron I 4
a �sa�ma. xW�.�.�w�na�s.�
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1
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.R 9 d,� w ea y iJ� V
�w�+»ffi�+'�'��'��"1�'��ke���$'��' er'� i
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s E
7 FlowCantralVah+e
h
�������m�������.w����
mree���,w �e qeaa ���m.��4a ro+��*�am+�F�P&�+$�s
a�aa�z�8�z �����a���a a��a�z a� a8�z�8�s<�a�a�
���ucr�te��u��� ��im.Canne�'
Brainage M�mf�Id Pr�e
f
1
�w�,� �M �rw�row
Figure 2.
T`he s�phon effeci will cantinue unt�l the water is drawn down to the lawer lip of the hood
at which t�me air is entrained and the siphan �s I�st INater wi�t contir�ue to drain
graa�atianally until the ball reseats r#seif and resets t�e system
Each �artndge is des�gned to treat a peak flow of 15 gpm (30 cartndgesl�fs�. For
example a peak destgn starmwater �tow rate af 5� gpm wvuld requ�re that 1 Q
cartr�dges be used m the treatment vau�.
The cartndges connect intv a pipe man�fold wh�ch is cast into the floor af �he vault
The CSF� typ�cally requires 2 3 feet of head drfferer�tial between the invert of the inlet
and the invert of the outiet
C� STORMWATER MAhiAGEMENT 12110191
T5
Because of the highly porous nature of the granular compost media, the flow through a
newly installed cartndge is restricted to 15 gpm using a flow control valve located at the
outlet of each marnfold pipe
The valve controls the flow nom three to e�ght cylinders (i e 45 to 120 gpm) The vaive
is calibrated and ad�usted such that, at design head, the maximum flow is throttled to the
number of cylinders on line times 15 gpm per cylinder
Over a penod of time the permeability of the media declines from sediment deposition
When this occurs, the flow control valve can be opened to help restore the system to
design flow This is facilitated by decreasing the head loss across the valve which
increases the potential across the filter
The CSF� is also designed with an mline overflow The overflow operates when the
inflow rate is greater than the infiitration capacity of the fiiter media
Depending on individual site charactenstics, some filters are equipped with high and/or
low flow bypasses High flow bypasses are installed when the calculated peak storm
event generates a flow which overcomes the overflow capac�ty or design capac�ty of the
filter This is especially important fo� the pre-cast Drop-In Filters �ow flow bypasses
are sometimes installed to prevent continuous inflows caused by ground water seepage
which usually does not require treatment For more information on bypassing the CSF�,
refer to the System Design secUon
OTHER MEDIA
Stormwater Management has also made avaiable other media to allow for the
customization of a system These media include
Pleated fabnc cartridge mserts
Pe�ite and zeolite for TSS metals removal
O STORMWATER MANAGEMENT 12/10/97
T6
�T�RAI��IVe4f �R�
n���a���rEn�r
��rtrid+�e Infarrna�ion
Weights� Dry Cartrid$e with Media: 150 Ibs.
Wet Cartridge wi�h M�dia: 25Q Ibs,
Car#riage Volume: 2.44 ft�
Cartridge Dimensions: Height =19.5" x Diameter Z0,5"
1 Cart�idge =15 gpm
�1 cfs �L4� gpm 30 Cartridg��
�e�eral Information
Ar�a o# Pipes:
Mominal Diarne#er Area fft��
Z" 0.�27 8
a.o���
5" 0.1964
8" 4.349D
Manninc�'s Coeffc�ent for
PVC Pipe 0.49�
Cvncrete Pipe 0.012
Weight af Wa#er: G�.4 lbsl ft�
Weight of Co�ncre�e: '145 Ibs1 f�
1V�eight of Soil: 'f 00 Ibsl f�
STORIUIINATER MAI�IAG�MENT 1211 Qf9l
IVl l!' IV 11 G E All E fV T
�vo
A. Applications
�B. Ty�pical Stormwater Tre�tment Con�gurations
C. Isometric Drawings
1. CSF� Drop-In Filter
2. CS� Linear Filter
3. CSF� Open Filter with Lid
4. CSF'� Open Filter witti 3- Sided Bridge Sections
f� D. �Case Studies
1. Regional Municipal Stormwater Improvement Facility
i
2. Heavy Vehicle Traffic
3. Restaurant Parking Lot
4. Regional Freeway System
4 STORMWATER MANAGEMENT 12/10/97
A1
STORMWATERTM
MANAGEMENT
The CSF`� has been used in a number of applications throughout the United
States CSF� is a desirable alternative to ponds and swales when the value of
land is high and the cost of instaliing large facilities becomes a ma�or pro�ect
expense The CSF� is also used where design constraints such as land slope,
hydraulic grade line or available area do not allow the installation of other
stormwater treatment technologies
Typical Development Applications:
Parking lots for fast food restaurants
Parking lots and access roads for large and small commercial
developments
Industrial parking lots
High density multifamily housing
Single family housing
Typical Roadway Applications (usualiy with pretreatment)
Residential
Arterial roads
Freeways
Bndge decks
There are other specialized appl�cations in which the CSF� has been used
including vehicle washing pads, industr�al applications (other than pa�Cing lots)
and specific waste waters The CSF� media demonstrates excellent removal
characteristics fo� specific target pollutants. For specialized applications,
laboratory testing of the water nonnally needs to be conducted to establish the
operational parameters Stormwater Management's Research and Development
staff is experienced at performing these studies
Configurations
There are many ways the CSF� can be configured into the stormwater system
The simplest configuration is to install a CSF� iniine with the storm system
w�thout any detention, bypass or pretreatment Figure 1 gives some
4 STORMWATER MANAGEMENT 12/10/97
diagrammatic examples of d�fferent configurations. The CSF� is a versatile water
quality facility designed to meet your stonnwater requirements
Different configurations may result from the need to provide pretreatment In light
of the land use, site hydrology, the stormwater management plan for the site,
and locai regulatory requirements, an essential element of the design process is
to evaluate pretreatment needs Pretreatment may include sedimentation vaults
or manholes, oil water separators, detention/sedimentation tanks, or high flow
and low flow bypasses
Agency Approvals as a BMP
The use of stormwater Best Management Practices (BMP's) are usuaily
regulated by the local goveming agency The CSF� is approved as a BMP w�th
many agencies, though the system may not yet be evaluated for use by the local
stormwater management agency that will review your pro�ect
It �s our recommendation that early in the design process you venfy acceptance
for use of a CSF� on your pro�ect In the event that the agency is not familiar
with the system and requires addibonal information, Stormwater Management
will provide support via informat�on and/or presentations to seek acceptance of
the CSF� as a BMP within the Junsdiction.
0 STORMWATER MANAGEMENT 12/10/97
S'nO1�MWATER"'
MANAGEMENT
Figure 1.
TYPICAL STORMWATER TJREATMENT CONFlGURATIONS
f �F� f
Sy�m P�t
P'pe
S�a(aae Water
Irfihra�on
CSF INLINE WITH OVERFLOW IN UNIT
scortnwacer A°"" s�tte' aif� nAanl�fe uN�u uhtrnace
.r� e
�..7F
CSF OfFUNE
Uhimate
f f o�� s
Collecbon Pre-TneabnerR
Sedirtoent fonebay
we� v�c
Svrale c
08�Water SepatB[Or �.•71-
CSF OFFLINE WITH PRE•TREATMENT
�TORMWAI�ER�
MANA�EMENT
Figure 1 Continued.
T YPlCAL STORMWA TER TREA?MENT CONF/GURA TIONS
f
csF
CSF OFFUNE WiTH DEfENTION/PRE-TREATMENT
f C$F
C$F�
MULTIPLE CSF� UN(TS (SERIES OR PARALLEU
f �F
Lo�w Row
CSF� LOW FLOW BYPASS
NOTE THERE ARE OTHER CONFlGURATIONS THAT UTILIZE THE CSF'�
CALL STORMWATER MANAGEMENT TO RECElVE TECHNICAL
SUPPORT FOR YOUR PARTICULAR SITE
MA�AIAGE11�E1V T
e
The Foilowing Drawings Represent �3-Dimensiona! Views of the:
e CSF� Drop-In Filter
CSF� Linear Filter
e CSF�" Open Filter with Lid
e CSF� Open Filter with 3-Sided Bridge Sect�ons
These units are available at many locations throughout the United States
I
O STORMWATER MANAGEMENT 12/10/97
GENERAL NOTES:
1) CSF STQRMWATER TREATMENT SYSTEAA BY STORWIWATER AIANAGEMENT.
PORTtAND. OREGON (503-240-3393)
TOP SECTION
No 814—TL-3-332P
>>aw
coo+rantzea Q�cmo�d P�aco ooa
r
1 �v�;w
--�-�-12-,s,� �urt,l
�i�i�' r F T�i �i �7
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—Tor� lift Muhm
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No 814-48R -$�,i� e �/r
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CSF� 8'x14' DROP—IN FILTER 1
SCALE N T S
CSf Slorma�ater Treelment System
U.S PATENT No 5.322.829.
No 5.62�4.578 AND OTBBR U S
ATID FORBIGN PAT�.rV'E'3 PENDiNG
o 8•x14' OROP—IN F1LTfR TYP/CAL S'IORMWATIER
QlPt00E0 V/EW
CSF� STOIPMWATfR TREATMENT SYSTEM M A N A e E M E N T
�ux. w�cn ►w_ auwwc ww�. a� r oa �o
.s seo� �ar� .�aoaovw�wc
GENERAL NOTES:
(8) Tratfic Bewmq G2 Crotes 1) CSf STORMWATER TREATAAENT SYSTEAA 81r STORAJWATER NANAf.'�MENT�
PORTUWD. OREGON (503-2�0-3393)
THE 7YPE OF OUTLET IS OPTIONAL. EPtCINEER MAY SPECIfY
CATCH BASIN. AAIWHOLE OR OtTCH HEAD WORK
(4) Rodrol ito�r Oo�t►eeqp
e
2fi36—CSF TRENCH-�
�.aoo bs. e
co�.�� eo�i� o�,a w�►
s -r
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16
(2) ��oflK Baormg C4 Crolas
2 -9 1/Y
C� 01 Qutb!
—Tan GoMOn��ed
�rine tnsels
171
B�! Pb�t
(P�uq �o► Oul�et ConEit�on)
Mole
f1o� Con lnsl0lle0 A(t!► Se �tT� o
s
O
1 11r1 Mol!
G2 CSF OUTLET Q a
t,soo o
0
o, e
0
o o.
0
3 1/4' 3 -3 3/�
CSF� LINEAR FILTER CSl�stormweter Trea�ment S�slem
SCALE N T$ U S PATBNT No 5.322.82A.
No 5,824.576 AND OTHE[t U S
AND FOREIGN PATFN7'S PENDING
°Q UNEAR FlLTER TYPICAL
S'�OR1ilWAT1ER"
�n o.,� plPLOOED 17EW M A N A O E M E N T
1 r CSF'STORMWATER TREATIIfEM Sr5TE11
s�uF. ar�cr aa ar�n�w mc oa��ae� a.rn roa�t�a o+ o�n
I I�D7 I
GENERAL NO
OR1lAN0� OREGON 503 E�T�SYSTE BY STaRAAWATER MANAGEMEKT.
4—Ton l�it Mthor
4 Waces In Top
OPTIONAL COVER
No 8056—T
14.800 Ibs
1
T—�'
CSF TRENCH e
e (21) aad�al F'Iow Corindges
No 8056-8
�s.soo e e
e
e s�-r
e s -s�
e �m
Fiow co�c.of va�ve ona Psp,r,q�
e
le�tolled A! Pionl e
A
0
0 �J
0
o-ar 9 r a-To� �rt aKno�
4 Ploees In Top
'l Couplmg ot OuGet
CSF� OPEN FILTER PRE—CAST SECTION 1
SCALE N T 5
C3'1�S�orm�a�er 7}+ealmen! Syslem
U S PATBNT No 8.322.829.
No 5.824,878 AND OTHHR U.S
AND FOREiGN PATEIYTS PBNDINC
OPfN FILTER T1'P1CAL PRE—CAST SECflON
..a fXPL00E0 V/FW M A F�N�
CSF' STORMWATER 7REATMfNT SYSTEM
w�. v�ct No oru�rwa �u wur� !0°° s� ryw� aA o�u
�s �o.�+ �eorac
GENERAL NOTES:
1) CSF STORMWATER TREATMENT MTEM 8Y STORMWATER MANA�,EMEM.
PORTI.AN� OREGON (503-240-3393)
J-332P FRAAIE 8 COVER.
OPTIOAW. R1�RS.
AND CAWAMYEp UIppER
END wa,L sECttON
10•—�
TOP SEC110N
IN90E lENC1H
f
AS REOUIREO
Y 3
i
T'
F' Y
t`
6�-r
M
j �Q��y
t 8llSf SECTtGN
\l
v
OUTIET PIPE
GIST IN FLOOR
r
a
1C' IN�OE YYID7H SEE CHART L 10r
END WALL SECTtON s
INLET PIPE
�nEa wnu
AT INLET OF VAULT
W
V
O
f?f y�
z
I
SECTioN viEw
INSIOE HEIGHT
+'—Or 5—� I 6'—� I 7'—� 8'—d' 9'—d' 10'—�l
INSIDE WIDTH
10'—�' 12'—Or I tJ I 14 I 1S I 16 —tf I 17'—� I 18 —ff I 19 I 20 —Or
SIZING CHART
Note Ecch CSF Flter {s Custom O�qrsed Md ProQuteO To Meel Project Md Jobs�ta ReQunemenis
CSF� OPEN FILTER 1
SCALE N T S
CSf S�ormwater ?}�eaiment S,�s�em
U S PATENT No 5.322.828.
No 5.824 576 AND OTH6R U S
AND FOREIGN PAT6NT3 PSNDING
OPfN FILTER TYPICAL
P1AN AND SEC110N VIEW �R�wA�
MANAQEMENT
CSF' STORAIWATER TRfA�AIEM SYST�M
1 wu�. �aur ►+o� aw�wacc c� rw� iwee� oocua� s�n ra+n�ua a� �a
�s sr�w �09� .uaovtin.c„�e moa�ioaom auoso�eo
All �11 A G E'IVd IY T
Stormwater Management has designed over 300 CSF�' Stormwater Treatment
Systems The following case studies represent a few examples and provide
some insight on why and how the CSF� is used in both public and prrvate
applications
O STORMWATER MANAGEMENT 12/10/97
STORMWATER�'
MANAGEMENT
Pro�ect Giles Street, Regional
Stormwater Treatment Facility
Olympia, Washington.
Appl�cat�on Regional
Municipal Stormwater
Improvement Facility.
Site Information:
Area of Tneatment:
200 Acres
Unjt Size: 12' x 37'
Number of Cartridges: 80
Flow: 2.67 cfs
Project Summary: The Giles Street Regional Facil�ty treats stormwater runoff
from a 200 acre watershed within the City of Olympia. Land use inciudes mature
commercial and residential developments and artenal roadways The high levels
of pollutants flowing into Schneider Creek from this watershed has long been a
concem of the City
Challenge: Due to very heavy doses of initial flush pollutants (heavy metals, oils
and greases) polluting Schneider Creek, the City of Olympia needed to treat the
stormwater runoff w�thin lim�ted available land. During the winte� months, water
quality in the creek was described as being "real sticky and greasy" by City
engineers In order to successfully treat the stormwater runoff, the City looked at
several options to improve water quality flowing into Schneider Creek Several
unique problems such as the iocation and elevation of the s�te did not allow for
conventional solutions
Why was the CSI�' Stormwa�er Treatment System chosen? In order to
successfully treat the runoff from the site with either a pond or swale, the City
would have needed to purchase a considerable amount of land immediately
surrounding the current drainage way The City also surmised that a pond or
swale within the available land area would not have removed the desired
amounts of pollutants that contaminate Schne�der Creek City of Olymp�a
engineers knew of several CSF�" projects within the city that were successful in
STORMWATER MANAGEMENT 12/10/97
treating stormwater runoff where space constraints were an issue Stormwater
Management was contacted and immediately began working with the city
engineers to design a system that wouid treat the high levels of pollutants, and
handle flow rates up to 2 7 cfs The approved CSF� System also required only
10 percent of the land needed for traditional stormwater treatment ponds
Results: The CSF� Stormwater Treatment System was an appropnate solution
for the unique charactenstics of the watershed The runoff flowing into the fiiter
is very dark, oily, and full of sediments The CSFF�" helps to protect the hab�tat
resources by removing debris/trash, sediments, heavy metals and petroleum
products from stoRnwater runoff before discharging into Schneider Creek The
space-saving design and ease of maintenance features made the CSF� the
ideal solution The ability of the CSF� System to effectively filter out pollutants,
allows the natural habitat to flounsh once again City engineers also praised the
cost benefits assoc�ated with the CSF� and �ts versatility
0
0 STORMWATER MANAGEMENT 12/10/97
STORMWATER'"
MANAGEMENT
Project Metro South Waste Transfer Station
Oregon City, Oregon j
Appl�cat►on• Heavy Vehicie Traffic
Sjte Information:
Anea of Treatment: 7.5 Acres
Filter Sfze: 10' x 21'
Flow: 0 .93 cfs
Project Summary: The 7 5 acre Metro South
Waste Transfer Station has approximately 75-80%
impervious surface (asphalt and bwldings A large
number of vehicles off-load waste at the station
annuaily
Th�s traffic generates a significant level of pollution, some of which finds its way into
stonnwater runoff In addition to the stormwater pollutants noRnaqy associated with
automotive traffic, the liquids that drain from the waste trucks also enter the runoff The
CSF� Stormwater Treatment System was installed at the end of an existing swale to
enhance the runoff quality and protect the natural resources of a pond
Chal/enge: This pro�ect represents a situation where stormwater runoff quality
probfems were present at an existing development The CSF� was instalied after it was
determined that the cuRent treatment system (swale) was not effectively removing
pollutants (sediments, oil grease) from stormwater runoff
Why was �he CS� Stormwater Treatmen! System specified? Due to severe
conditions at the transfer site, the County saw a need to mcrease the filtrat�on of the
stormwater n.�noff Stormwater Management was contacted to consuit and then design
the CSF� System The County was looking for innovative stonnwater treatment
technology, and chose Stormwater Management
Results: The CSF� fiiter protects the naturai resources of the pond, allowing rt to
function as wildlife habitat The filter p�otects the habitat resources by removmg
debns/trash, sed�ments, heavy metais, and petroleum products (organic chemicals) from
stormwater nanoff pnor to its discharge to the pond Transfer station workers have
indicated the quality of the pond has improved since the installation of the CSF Their
assessment is based on the increased number of wildlrfe species observed utilizing the
habitat
O STORMWATER MANAGEMENT 12l10/97
�'f'ORMWATER"
MANAGEMEHT
r
F
Pro�ect: McDonald's Restaurant,
Vancouver, Washington.
Appl�catron Restaurant Parking Lot
Site lnformation:
Acnes of Treatment: 1.3
Filter Size: 6' x 12'
JVumber of Cartridges: 9
F/ow: 0.31 cfs
Project Summary: A fast food
restaurant located in an urban setting
required an effective and space-saving
stormwater treatment system to handie
runoff from the�r parking lot
Chal/enge: The restaurant is located on a small lot in Southwest Vancouve�
The restaurant did not have the room to place a conventional grassy swale or
detention pond to handle its stormwater runoff Grassy swales and detention
ponds take a significant amount of space to adequately handle the pro�ected
amount of runoff from the pa�lcing fot, therefore they were not feasible solutions
Why was the CS�' Stormwater Tneatment System Chosen? Where land is
scarce, the CSF� Stormwater Treatment System is available for space-saving
drop-in instatlations The CSF� was placed under the restaurant's parking lot
aliowing the restaurant to effectively treat its stormwater runoff without taking up
add�tional valuable land The CSF� Drop-In Filters are also easy and mexpensive
to clean. This is system is maintained by Stormwater Management annually
O STORMWATER MANAGEMENT 12/10/97
sroRMwarER�
MAJVAGEMENT
Pr��ect San Joaquin Hills
Transportation Corridor
(SJHTC), Orange County,
I
California.
r
Applicatron Regional Freeway
System.
Sile /nformation: j
Area of Treatment: 18
��r
�f
miles
Filter Size(s): 12' x 28'
through 25' x 90'
Flow: 1 cfs through 8 cfs
i h J
Project Summary: The 18 mile SJHTC tollway links San Juan Capistrano and
Newport Beach in Southem California The muiti-lane divided highway has 11
interchanges, and 76 bridges The Environmental Impact Statement (EIS)
identified numerous measures to mitigate the impact of the pro�ect on the
environment, including treatment of pavement runoff New federal regulations
and the SJHTC's EIS required permanent facilities to intercept poilutants coming
from the highway
Chalienge: In technical studies conducted in Contra Costa and Los Angeles
Counties, a methodology for forecasting pollutant loads from h�ghway n,inoff was
developed The study �dent�fied pollutants including sediments, metals, oils and
greases found in any highway runoff The EIS required that stormwater runoff
be detained and treated to assure that increased peak flows and pollutants do
not impact downstream channels The EIS originally suggested the use of
OiUWate� separators with detention basins to treat the first flush stormwater
O STORMWATER MANAGEMENT 12/10/97
runoff While oil/water separators do allow coarse sediments to settle and oil
droplets to float to the surface, they do not t�eat dissolved chemicals In order
for the oil/water separators to work properly, the detention ponds would have to
be very large Maintenance demands for oil/wate� separators are signficant, and
therefore, �t was detemnined another means of stormwater treatrnent was
required.
Why was the CSF� Stormwater Tneatment System Chosen� Several
methods of stormwater treatment were evaluated, including infi�ration basins
that required imported soil materials that were speaally formulated to meet the
required infiltration rate tolerance Due to the size and scope of the pro�ect, each
method was studied for its filtration capability, amount of land required to support
the technology, maintenance and cost The CSF� Stormwater Treatment System
offered excellent treatment prope�ties at high flow rates This allowed flexibility
in a fast track design process to reduce costs and meet tight schedules
O STORMWATER MANAGEMENT 12/10/97
S1
t STORMWATER'"
MANAGEMENT
A. CSF�" System Design Considerations
1) Site Hydrological Characteristics
2) Assessing Water Quality
3) Sizing, Siting, System Hyd�aulics and Structural Considerations
4) Incorporating the CSF�' into the Site Stormwater Management
Pian
B. Pretreatment Requirements
1) Source Control
2) Site Sweeping
3) Catch Basin Operation Maintenance
4) Pretreatment BMP's
P
5) Sedimentation Facility Design (Empincal Method)
6) Sedimentation Facil�ty Design (Based on Mass Loading and
Particle Size Distribution)
7) Spiil Containment and Recovery
C. Bypassing the CSF�
1) High Flow Bypassing
2) Base Flow Bypassing
D. Interim Sediment Control Measures
E. CSF� Design Process
1) Desi n Process Flow Chart
2 CS� Pro ect Information Sheet #1
1
3) CSF�" Project Information Sheet #2 Drop In
4) CSF� Pro�ect Information Sheet #2 Linear
5) CSF� Project Information Sheet #2 Open
6) CSF� Pro�ect Informa�on Sheet #2 Site Pian
O STORMWATER MANAGEMENT 12/10J97
S2
STORMWATER�'
MANAGEMEIV T
0
There are four primary factors which relate to the design of a CSF� These
factors are
Establishing the treatment flow from site hydrological characteristics
Assessing water quality and the need for pretreatment
Sizing, siting, system hydraulics and structural considerations
Incorporating the CSF� into the site stomnwater management plan
Site Hyd�ological Characteristics
Most wate� qual�ty facil�ties are designed around a design storm, usually
established by the locai regulatory agency Based on historical data the agency
determines the retum penod of the storm and specifies a modeling methodology
to calculate either the peak water quality flow or the runoff volume associated
with the design storm
The CSF�' �s a flow based system, and therefore, is sized by calculating the peak
flow associated with the design storm
Another consideration related to the site hydrology is the calculated peak design
fiow used for s�z�ng the conveyance system The storm retum per�od is usually
set by the regulatory agency and vanes from the 10 year to the 100 year storm
This eak flow is important for the evaluation of the hydraulic conveyance of the
CS�in the case of severe storm events
The designer also needs to consider the presence of base flows as well. If
groundwater releases a persistent flow to the CSF�', a base flow bypass may be
needed
In many urban areas where development has increased peak flows and caused
local flooding, many agencies require detention of runoff to reduce the peak
flows from the site to pre-developed conditions. In this case, detention becomes
a factor in how to configure the CSF� into the storm system
4 STORMWATER MANAGEMENT 12/10/97
S3
Watershed Characteristics
Though difficult to quantify, the designer needs to consider other hydrologic
factors such as watershed size relative to the peak flow Larger watersheds w�th
a lower C or CN Value can produce the same peak flow as a smalle� more
impeniious site, but the total volume of flow from a given storm is greater.
Hence, an up sizing of the facility may be needed
A suggested methodology is
Qlreat
�105��
Where Q is the design flow established from the hydrology model and C is the
"Rational Coefficient
For example, w�th a C factor of 0 7 and Q=1.0 cfs, the resuit would be
Qrrea� 1 105� -114 or about 14% increase in the size of the facilrty
Note This methodology is based on our best engineenng �udgment given the
limited information availabie
Detentio�
The CSF� is usually placed downstream of detention systems. Th�s allows for
downsizing of the facility, and if designed properly, also aliows for excellent
pretreatment However, the detent�on system prolongs the flow into the CSF�
and decreases the rest period In this case, the CSF� needs to be up sized.
The minimum recommended CSF� size is a 6'x8' Drop-In with 5 cartndges If
the detention flow exceeds 0 17 cfs, we then recommend the facility be up s�zed
by 50% of maximum detained flow rate
Assessing Water Quality
Assessing the quality of stormwater directed to water quality facilities is difficult.
Ultimateiy, each site develops its own water quality charactenstics and even
these will vary with time, seasons and random events such as spilis or erosion
There are many factors which influence water quality Land use, storm dynamics,
source control and maintenance practices are some ma�or factors Though there
are few specific guidelines available, it is desirable to establish the potentiaf for
sediment loading and oil and grease loading to the filter In general, if heavy
sediment loading is anticipated, a pretreatment system needs to be considered
O STORMWATER MANAGEMENT 12/10/97
since sedirnents will gradually occlude the surface of the filter and reduce
permeability
To ach�eve the des�red result, the designer needs to estimate the mass loading
of sediments from a site and compare this to the acceptable mass loading of
sediments to the fiiter An acceptable loading is a function of the level of decline
in filter permeability and the frequency of maintenance implementation of
sedimentation pretreatment is discussed in the Pretreatment section of this
manual
if heavy O&G loading is ant�cipated, i.e 25 mg/l or greater, then the use of a
standard API separator or coalescing piate sepa�ator needs to be considered as
a pretreatment In the case of specific pollutants such as organics or metals
coming from a particular site, it may be necessary to pe�form some specific
laboratory tests to characterize the stormwater and document treatment
effectiveness
Sizing, Siting, System Hydraulics and Structural Considerations
The following three sections provide detailed step by step instructions for the
design of all different types of CSF�' configurations The designer shouid
familianze themselves with the design process flow chart to insure that all of the
needed steps are being met
If you have any questions regarding the design process, piease feel free to
contact the Stormwater Management engineenng department and we wili be
more than happy to assist you
Incorporating the CSF�' into the Site Stormwate� Management Plan
Many agencies require that an operat�ons and maintenance plan be submttted
with the stormwater quality facility Th�s document is normally submitted to the
contractor by StoITnwater Management with the shop drawing review package
We do however, stress that the CSF�' is a component of a stormwater system
and should be incorporated into a stormwater management plan The plan
should include methods for source cont�ol, regular maintenance needs such as
sweeping, and maintenance requirements of the storm system itse�, including
cleaning of catch basins, pipe inspections, maintenance of pretreatment facilities
and maintenance of the CSF�
STORMWATER MANAGEMENT 12/10/97
S5
STORMWATERTM
MANAGEMENT
The CSF� is intended to be part of an entire stormwater system which includes a
series of components All of these components play a role in water quality
improvement The pnmary stoRnwater system components are
Source Control
Site Sweeping
Catch basin Operation and Maintenance
Pretreatment BMP's
CSF� Stormwater Treatment System
During the design process, the engineer must make some assumptions as to
how the land use, hydrology and site characterist�cs will affect the stormwater
runoff Based on these assumptions, the engineer shouid then develop a
stormwater management plan that inciudes the selection and des�gn of the water
quality t�eatment facilities
Source Controi
All sites have certain degrees of control on the source and magnitude of
pollutants that are sub�ected to being introduced to the storm system
Businesses with non-public parking lots tend to have a lot of control, even to the
extent that employees with leaking vehicles are notfied Businesses with public
parkmg lots have less control, and roadways have almost no control Other
factors such as atmospheric deposition are not controllable on any s�te The
engmeer needs to understand what potential pol(utants will come from the site
and provide for the design accordingly The engineer may want to include
recommendations to the owner as to what source control measures are needed
to minimize pollutant exposure to the storm system
Some ma�or controllable contnbutors to site runoff pollution are
Landscape design, e g mounding berms to the top of curb
Landscape irngation, fertil�zation and pest control pract�ces
Veh�cle and equipment washing
Roof treatments, e g using zinc for moss control
Vehicle and equipment maintenance
Garbage storage, e g leaking dumpsters
O STORMWATER MANAGEMENT 12/10/97
S6
Principal business activities, e g fast food restaurants washing greasy mats
in the parking lot
Business sanitation practices e g sweeping metal filings to the outside rather
than picking them up
Site Sweeping
It is useful to know the frequency of sweeping and vacuuming of the paved
drainage surfaces as this will have direct impact on sediments, floatables, and
BOD Many commercial parking lots are swept weekly. Though sweeping is
pnncipally focused on la�ge sized particles and trash, analysis of street sweeping
debns has shown elevated levels of Total Petroleum Hydrocarbons (TPH) and
heavy metals
Catch Basin Operation and Maintenance
The catch basins are the first oppo�tunity to pre-treat runoff upon entry into the
storm system Stonnwater Management recommends the use of sumped catch
basins with an inverted elbow to trap some oit and floatables The sump should
be at least 18" from the invert of the outlet preferably 24"
Sto�rnwater Management recommends that all of the catch basins be inspected
every 6 months for sediments and oil accumulation They should aiso be
inspected to insure all piping is intact and bypasses are ciosed They need to
be cleaned when the sediment accumulation is greater than '/Z of the sump
depth, or annually when the CSF� is maintained, which ever comes first
Pretreatment BMP's
There are finro types of pretreatment used in conJunction with the CSF� First is
removal of oils and greases when hea�ry loads are expected Most commonly
used is pre-settling of sediments to reduce loading to the surface of the filters
Oils and Greases
Parking lots and roadways tend to generate sustained loadings of oil and grease
at levels of 10 mg/I or less From paved surfaces, peak oil and grease (O&G)
concentrations can easily hit 30 ppm The O&G content is usualiy composed of
a combina�on of free oils, creating a sheen and a sediment fraction to which
O&G has adhered Under these circumstances, the CSF�' does not need 0&G
pretreatment
In some appl�cations, such as v�ehicle maintenance facilities, O&G loading may
exceed the capacity of the CSF Sustained amounts in excess of 25 mgll may
trigger the need for a pretreatment facility Our base recommendation is the
add�tion of an API separator which has the ab�l�ty to be retrofitted as a coalescing
O STORMWATER MANAGEMENT 12/10/97
S7
plate separator These systems need to be sized and maintained in accordance
with the manufacturer's recommendations
If periodic loads of free oil and grease are expected The scum baffles and/or
flow spreaders can be fit with oil adsorbent booms or bags which are penodically
removed and replaced
Sedimentation
Pre-settling of stormwater runoff prior to discharging to a CSF� will reduce the
sediment load�ngs to the filter chamber and increase the filter's operat�onal life
Design of the pretreatment facility will vary with the local regulations and
construction methods Pre-settling can be achieved with
Small surface ponds/detention facilities
Sedimentation manholes
P�e-cast and cast in place vaults
Large diameter pipes
Underground detent�on facilities with sedimentation trapping features
The designer must first make a determination as to the need for pretreatment
sedimentation In general, the following recommendations are made
Roadways with no curb and gutter Required
Roadways with curb and gutter Recommended
Developments with steep slopes and erosive so�ls Required
Regional Facilities w�th a low C factor 0 7) Required
Single Family Developments Recommended
Multifamily Developments Optional
Small 2 acre or less commerc�al Optional
Sedimentation Facility Design (Empirical Method)
Once the determination is made to prov�de pretreatment, the designer then
needs to size and design the pretreatment unit There are many techniques
available for sizing the facilities We recommend the following featu�es be
designed into the pretreatment facility
Provide high flow diversion upstream to prevent re-suspension of sediments
dunng high flows
Provide a two chamber system to allow quiescent flow in the second
chamber
O STORMWATER MANAGEMENT 12/10/97
S8
Provide an inverted elbow to allow for increase capture efficiency of
floatables in the first chambe�
Provide an upright circular weir onfice to skim ciear water from the surface in
the second chamber
Provide a minimum of 12" depth for the accumulation of sediment
Size the storage volume of the second chamber to contain a min�mum of two
minutes of residence time based on the peak design inflow Do not include
the maximum sediment storage volume in this calculat�on
A procedure for sizing a sedimentation facility has been developed by
Stormwate� Management using empirical data gathered by evaluating settling
rates of sediments collected from the surface of filters �n the field The
procedure is as follows
1 Calcu{ate the peak flow Q peak (cfs) into the sedimentation system
2 Calculate the settling volume, V settl�ng (ft"3) in the second chamber based
on 2 minute settling time
V settlmg Q peak X 120
3 Determine the area dimensions of the facility and the plan area of chamber 2
by using standard vault or manhole shapes availabte to you
4 Calculate the sediment volume Vs (using a minimum of 12" of sediment
depth)
Vs 1 foot X area of chamber 2
5 Calculate total volume from the floor of system to invert the outlet
V total V settl�ng Vs
For example: a 6'X12' CSF� has an inflow of 0 31 cfs The settl�ng volume (V
settling) is (0 31)(120) 37.2 ft"3. Choose a 48" manhole with a center dwide�
This yields 6 28 ft"3 per vertical foot The total depth of the manhole below the
invert of the outlet is 37 2/6 28 1= 6 9 ft It may be more economical to try a
60" manhole which would need to be only 4 feet below the hydraulic grade line
Sedimentation Facility Design (Based on Mass Loading and Particle S�ze Distnbubon)
Stormwater Management is in the process of developing more sophisticated
methods of evaluating the need for sedimentation pretreatment facilities It is
U STORMWATER MANAGEMENT 12/10/97
S9
problematic that this procedure requires significant data and assumptions If the
engineer can provide an estimate of the sediment loading into a storm system,
the following methodology can be used to size the pretreatment facility and
predict the fiiter performance between maintenance cycles
The following factors need to be established
1. TSS Loading Entering the Catch Basin(s) or Storm System Between
Maintenance Cycles
This is a very difficult number to establish Usually there are no data for
the specifc site or even similar land use in the pro�ect vicinity Many times
the local stormwater agency will have some sampling data from which to
estimate annual TSS loading
2. Catch Basin Trapping Efficiency
Efficiency of catch basin trapping will depend heavily on particle size
distribution Data from studies of catch basin residual indicate that most
of the solids captured are fine sands and above If addit�onal data is not
available, we recommend the use of the predominate soil senes from the
soil sun�ey
3. Pretreatm�nt Capture E�ciency
There a�e many different methods of facility design The tables below
provide some general information on particle sizes and settling velociUes
of smail diameter particles
Table 1 Particle Sizes
Soi! Se�arates E�uiv D�ameter (mm) Ec�unr Diameter M�crons
Very Coarse Sand 2 0-1 0 2000-1000
Coarse Sand 1 0-0 5 1000-500
Medium Sand 0 5-0 25 500-250
Fine Sand 0 25-0 10 250-100
Very Fine Sand 0 10-0 05 100-50
Silt 0 05-0 002 50-2
Cla� <0 002 <2
Reference Urban Surface Water Manaaement, Walesh
O STORMWATER MANAGEMENT 12/10/97
S10
Table 2- Settling Velocities of S�herical Particies (S=2.65, T= 68 de� F�
Diameter (Microns) Velocity (ft/sec) Diameter (Microns) Velocity (ft/sec)
8 0 00019 30 0 0027
10 0 00029 40 0 0047
12 0 00042 50 0 0074
15 0 00066 60 0 011
18 0 00095 80 0 019
20 0.0012 100 0 029
25 0 0018
Reference Urban Surface Water Mana�ement, Walesh
Using these tables, the designer can calculate the needed residence time
to drop a desired particle size a fixed distance from the surface of a
quiescent plug flow settling chamber Diameters smaller than 60 microns
begin to require very long times, hence, large settling fac�l�ties Our
recommendation is to size the facility for diameters of 60 microns which
will drop 1 32 feet in 120 seconds The outlet should skim water from the
surface with a maximum water depth of 4 inches Assume a removal
effic�ency of 70%
Smaller diameter particles wili be trapped by the radial flow filter
cartridges The filtenng e�ciency of the �iters will increase as the system
matu�es, however, there is an associated decrease in the hydraulic
efficiency of the system
4. Desired Frequency of Maintenance
Ma�ntenance frequency is highly dependent on the site charactenstics,
storm dynamics, and vanous random events which occur on the s�te
throughout the course of the year As w�h any stormwater treatment
system, maintenance needs will vary from site to site and year to year
Mamtenance is usually pe�formed annualiy Typically, maintenance is
driven by sediment loading Hence� the more effective the pretreatment,
the less frequent the maintenance requirements This manual has a copy
of the O&M Guidelines for the CSF�`' Filter
5. Radial Flow Filter Perfo�rnance
As a CSF� radial flow filter cartndge captures suspended solids f�om
stormwater, it accumulates sediments on the surface. This progressive
loading of sediments will reduce the cartndge permeability and cause a
decline in the systems hydraulic efficiency
0 STORMWATER MANAGEMENT 12/10/97
S11
Studies of the CSF�' Filter indicate that a loading of 11 Ibs of dry weight
sediment per cyl�nder incident to filter chamber will decrease the
permeabil�ty to 60% of design value The following is the resun of
sediment loading studies by Stormwater Management It shows how
system permeability is affected by sediments after entenng the cartndge
chamber
Sediment Loading Perfomance Curve
Radial Florn{ Cartndae
i i i�
i: i i i i i I
z i i
14 I 1 i 'i i
i i i i� i i i
i i I i i
i 7� i_i i i
i i
a 12 �one�f-ApproximaLely— f
T�
v —NoSediimentJnfiuence— Y
3 r_
I I
010.. f
LL �ne.O�ApproximaLeTy:Unear i i
"Ss'dlmentlnfluenc�
8'" i 1 i'� i i i
4 I, I I I i I
I I i I I I I I
I I I I i I I
6 i 2 2
0 1000 2000 3000 4000 6000 6000 7000
Sediment Loading (grams)
If the designer knows the maximum allowable decline in system efficiency, i e
Flow/15gpm, this graph can then be used to establish the total sediment load
between maintenance cycles For example, a unit with 24 cartridges and a 50%
allowable decline would accumulate about 114 kg or 255 Ibs of sediment
Assuming that the fiiters are 85% efficient �n capturing TSS, the total allowable
mass of TSS into the system is 300 Ibs
Methodology
1 Size the CSF� according to the design flow and determine the number of
cartridges required (NcART)
2 Estimate the Total TSS Loading and Particie Size Distnbution (MTSS) between
desired maintenance intervals
3 Establish the Catch Basin Trap Efficiency (E �g) (15% by defauit) (assume
fine sands and above)
4 Establish credit for sweeping and maintenance practices (Sweep) (8% for
weekly sweeping�
O STORMWATER MANAGEMENT 12/10/97
S12
5 Establish maximum allowable decline in CSF� hydraulic efficiency EcsF
Qmin/15 and use Table 1 to determine the total allowable mass loading in
Ibs/cartridge (McART) Use a CSF�' trap efficiency of 80%
Using the information above calculate the total mass of TS needed to be
removed Th�s is accompl�shed by setting up an equation to caiculate the total
mass comin into the CSF�" and setting it equal to the allowable mass of TSS
into the CS�
(MTSS)(1 �MCART��NCART��O 8O
The equation is then solved for the efficiency of the pretreatment (EPRE)
EPRE ��MCART}�NCART�IO HO� I �MTSS�� -Ece)(1-SweeP)]
4nce the required efficiency of the pretreatment is determined, the total mass
removed by the pretreatment can be calculated by
M PRE �MTSS� �E PRE�
It is then up to the designer to estimate the smallest particle size fraction needed
to be removed at the caiculated pretreatment efficiency Using the given settling
velocities, the fac�lity can then be s�zed
Spill Containment and Recovery
Since the CSF� is not dependent on vegetation and large volumes of water to
function, it is effective for spill containment and can be qu�ckly and inexpensively
maintained to restore its function
In the event of a spill, the cleanup and disposal of residuais need to be done in
accordance with local regulations and spill response requirements
O STORMWATER MANAGEMENT 12/10/97
S13
sroRMwarFRTM
MANAGEMENT
0
There are two bypass modes which need to be considered with the CSF�'
These modes are high flow bypassing and base flow bypassing Each pro�ect
needs to be evaluated for both of these factors
High Flow Bypassing
High flows can �educe the effectiveness of the CSF� and other water quality
facilities by resuspending sediments and flushing captured floatables High flow
bypassing is typicaily achieved by installing a flow spiitter upstream of the facility
or pretreatment facility High flow bypassing ifor the CSF� is needed when
The flow through a CSF�' Drop-in exceeds 2.2 cfs
The flow through a CSF�' Open system exceeds 2 0 cfs per 4' weir
The flow through a CSF� L�near Filter exceeds 1 3 cfs
The use of a high flow bypass set to the water quality design flow is aiso
recommended when pretreatment is needed so the size of the pretreatment
facility can be reduced since it is more efficient
To m�nimize the occurrence of pulsing, there have been a number of s�mple
structural designs of high flow bypasses The purpose of the high flow bypass �s
to shunt high flows around the separator to avoid re-suspension and increase the
effectiveness of poilutant removai
There are a number of different methods used to facilitate high flow bypass�ng.
One of the simpiest methods used is to place fin►o outlet pipes in a manhole A
smailer p�pe is placed at a low elevation to direct the low flows (or water quality
flows) to a water quality facility This pipe is then modeled as a long tube orifice
to calculate the head requ�red to drive the water quality des�gn flow. One the
head requirement �s known, the invert of a larger high flow pipe is placed at the
water surface elevation
Though inexpensive, this type of configuration does not function as well as
intended Based on fieid observations these are some of the problems
encountered
if the small pipe is iniine with the larger pipe, shooting flows will greatly
increase the flows through the small pipe
If the smaller pipe is restncted with an onfice, ciogging with debris may occur
O STORMWATER MANAGEMENT 12/10/97
S14
Since both pipes act as an orifice, dunng high flow events flows to the water
quality facility will exceed design values
What is actualty constructed in the fieid is not always what was designed by
the engineer and the unit is not easily filed ad�usted
A more sophisticated method of designing a high flow bypass uses a weir and
orifice in combination The invert of the onfice is set to the invert elevation of the
inlet pipe As flow increases the o�ifice will begin to submerge, i e head needs
to build up on the orifice to pass more flow. Once the flow reaches a
predetemnined amount a certain head elevation will be needed to drive the flow
through the or�fice
The invert of the overflow weir is set to the design water surface elevation for
the orifice As the flow increases above this design value, water begins to spill
over the weir Below is the stage discharge characteristic of a system with a 3
foot weir and 6 inch onfice
8 00
700
6 00
5 00
v 400
3
0
300
200
1 00
000�
O N t�D C�O O N m O N
O O O O O N N N
Stage f�om Orifice Invert (k)
Or�fice Weir Bev 1 0 Total Flow
Note the flat characteristic of the orifice vs. the exponential charactenstic of the
weir The combination of these charactenstics is desirable since at h�gher
stages the flow into the water quality facility is relatively independent of the
stage above the design head on the orifice This characteristic is because the
flow through an onfice �s proportion to the square �oot head whereas the flow
over a weir is proportional to the head raised to the 3/2 power The equations
are
Orifice Q CA.�2gH
O STORMWATER MANAGEMENT 12/10/97
S15
where Q= flow in cubic feet per second, A is the inside area of the orifice in
f square feet, g is the gravitational constant (32 2 ft/sec^2) and H is the head on
the onfice C is the discha�ge coefficient For a long tube ori�ce assume C=
0 82 (Brater and King, 1982)
Weir Q ClH
where I is the length of the weir in feet H is the head on the weir in feet, and C
is approximated at about 3 4
The Stormwater Management "StormGate" High Flow Bypass
Stormwater Management provides a product to help the engineer simplify
bypass design, reduce design time Stormwater Management manufactures a
field ad�ustable weir which is shipped as a kit to a concrete pre-caster for
installation into a manhole Stormwater Management also provides the enginee�
with standard plans and details located in the details section of this manual
Base Flow Bypassing
Field expe�ience has demonstra�ted that continuous inflows, from interflow or
base flows, �nnll not give the CSF a rest per�od between storms and reduce the
system permeability Field data collection has also shown that these base flows
typically have low pollutant concentrat�ons and do not require treatment
There are two types of base flow bypasses The first �s a simple inve�ted elbow
w�th a control onfice, which is field ad�usted to allow the base flows to bypass the
CSF�'. This bypass continues to operate throughout a storm event, thus
bypassing some of the runoff from the CSF�'
The second type of low flow bypass is a field ad�usted float actuated control
valve The valve is ad�usted during steady state conditions to the osition whe�e
the drivin head water surface elevation is at the invert of the CS�inlet
9
Whe�n a storm occurs, the rising limb of the hydrograph causes a surge in the
CSF inlet making an internal float rise As the float rises, it closes the control
valve which shuts off the low flow bypass Once the stoRn has passed, the
inflow rate reduces to a point where the float subsides and the bypass begms to
operate again This allows for treatment of all inflows Base flow bypasses are
available from Stormwater Management
O STORMWATER MANAGEMENT 12/10/97
7
a
8A IC OP RATIO HYDROIOGY DATA W Z
5 E NS MAINTENANCE GUIOELINES W
f ►�rortotopC wroOEi I
BYPASS FLOW Ilj MINIAIUId MlNUM. MNNTENANCE INCL110ES tNSPECTION OF pQlrtPpNENN1'S AND REAtGWU. OF �tENTS. CQNTRIBUTiHG 11R�p �oe.tea) I s
OUTI.Er PIPE B) INSPECT M1EA1 C01dCR�ON IN TME EVENT OF A 5 YfAR STORid GRfATER C 3 W
1 NOTE. FOLLOW ALI. LOCAL. STATE. FEDERAL SARElY GIJIOEUNES TI�[E Of COHCEAtiRAT10N lntatl I
�ac �H�r�srn► rrn�,our� I
RETURN P£R�00 Cf PEAK iLOw �s S
GENERAL NOTES: e��s c��� I 2
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INLET PIPE SET PRECAST wEIR wALL wITH w
1 THE STORMGATE OATA
A 2" x 7' ANGLE AND GROUT IN
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THE STORMGATE�' PLAN VIEW 1 3 °R`F`c� �A� I
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speeHied in the pro�tets genecai techn+col speaRtotion9 or..a
0 SI�dO Cate Valve Sltall be Coniitruttad ol f'1FC with sto�nfess steel shoft
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INLET PIPE LOW FLOW atainless steel 3 1 PRECAST CONCRETE MANWCLE
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2 2 PRE-CAST CONCRETE VAULT COMPONENTS 8 Sonded PY� RlUngs shall oe uaed on dll PVC �nlet and euttat pi�
J Z NfE1RS At pro�act ccmo�etion, werra sholl Qa sa! to
4 6� MIN A. Prrcost Cortarete� Sholl be prowded etcording to C478 ia,rd, ond 9eele� ot ol� �oirtts w�th ¢�I�cone sealant Seolan�t sh� be�wo�rkes
8. Joint Seo�ant Shou be Conseal CS-t01 or fngmear apa�ora� into �o�nt trom botl+ sFdas.
2 3 CONTRACTOR Pitaill0E0 CObtPONf1VY'S 3 3 CLEANUP Remora oll extqa ntaterials rotks. roqts. or fore�9n matenal.
leoving ehe a�te �n o eleon. con+pfete eondit�on approvee br the ERqmear Afl
ri PVC nrtd �b�glo�a Idle�r corr�p�nanta shntl be free o! vny loie�qn matanofs
THE STORMGATE SECTION VIEW A—A a Conc�eto (�or �+erete not co�ae oy p�e—coat s�ufcouon aeove) Sha�► ,�etuding eoncrate one axresa sea=cnt
ba 3000 ps�. 28 doy ssttength. 3/� �n�h round rocM. 4 ine1+ elump n�odmw+n
SCALE. N T S pleced w�th�n 90 n+�nutes ol �mtcel mix�reg 3 4 PVC piplNC Shol1 Qa �oinrd tn Qeeardareee with A5T1►1 OZ564
�ast �r
1 OF 1
S16
sroRn�warFR�
MANAGEMENT
a
The CSF�' can be used as a part of the eros�on and sediment control plan during
the construction phase of the pro�ect
With the CSF�, the following sediment control principles can be applied
The CSF� can act as a sedimentation vault to drop out sediments from small
storms
The CSF� can be used to filter a limited amount of flows through filter fabncs
The following measures can be taken to accomptish this
For Linear Filters and Drop-In Filters:
1 Install all of the filte� components except the cartridges
2 Plug ail of the 2" discharge po�ts in the facility except 2(DO NOT GLUE)
3 Using a 4" to 2" adapter, plug each end of a coil (about 100 feet) of 4n flexible
slotted pipe with a filter sock into 2 of the ports (DO NOT GLUE)
(this can be repeated for multiple ports)
4 Allow the pipe to float freely in the system and slowly filter runoff through the
sock to help reduce the TSS leaving the construction site
For Open Filters with two or more Cells:
1 In cell 1(the upstream cell) place 2" PVC plugs �n all of the manifold inlet
ports (DO NOT GLUE)
2 In downstream end, cell 2, install a 4" to 2" PVC adapter fitting into each of
the 2 open ports (DO NOT GLUE)
3 Connect the finro fittings with about 100 feet of 4" flexible slotted drainage
pipe with an external fiiter sock (This can be repeated as needed with more
pipe and fittings)
Upon compl�et�on and stabilization of the pro�ect, the contractor wili need to clean
out the CSF and remove the plugs in preparation for the installation of the radial
flow filter cartndges
NOTE: The CSF�" shouid not be considered to be the sole means of
sediment control It can be used in con�unction with other erosion and
sediment control practices and integrated into the erosion and sediment control
plan
O STORMWATER MANAGEMENT 12/10/97
The following pages outline the basic design process for all CSF�' units.
The attached flowchart can be used as a guide to lead you through a step-
by-step proce�s to insure a quick and accurate solution to your stormwater
quality challenge.
Also included in this section are sample information sheets 1, 2,and 3 that
can be photocopied and faxed to us so that we can provide you with your
CSF design. Blank information sheets are included in,the Updates Section.
4 STORMWATER MANAGEMENT 12/10/97
CSF STORMINATER TREATMENT SYSTEM
DES�C°71V PROCoESS
PS„�o ed Scopins� Deslq� Co�truction Phase
wa� n� F�
1,�,� (aersn �'1 I
I
I I
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P� S¢� on0 sMoCl Ye4 of C8F ta► �Mo drop .,..f l�as Stonmrs�n�
d� Iq�olppy �n0 -a doalQn f1� Yow (lanf 1�1 0�+1� w► Oad►�spta� ol �Ipn to m�maUy ome�s oot�trumon moeyt�M Mp��rt o P Q ro8ee
msalrlp� atd atd a�oq CD �P �0
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�o �°aa�dn° a�, f
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M�i11�AGEAq�1V T
4 STORMWATER MANAGEMENT 12/10/97
�S'AMPLE
(Originals for use in Update Section)
CSF�' P�oject Info�mation Sheet #1
Date 12/1/9T Page Z oj 3
To: Stormwater Mcrnageme�t Fronr: J�wvSwu;t�.
Attn: Company: Sw��n�i�
Fax Nu�ber: 503-240-9SS3 Fax 1Yi�inber: (S0�) 333-3333
cc: rovwJoner�
Project Nnme: Tva�o�. Mc+.LL
Projecl Address i 050 1 TO�` �4 vPi Tu�.�ov. W�4 98 T6 5
Estimated Co��structio�r Date: ZL�T
Project Ei:giieeer: (NQ»re a»d Tille) To�,w�w�,tik
A�ldress: 12 3 4� W 12"� �treet. �o�r�tl,a�n,cZ
Plrone/Fax Number 503 -333 -2222 �AJC 503 -333 -3333
Filter Ow�ier (Responsible for Mair�tenance): T��aw �aa.L+4_�For.i.a,ttow
Address: ID50 17� �4v� Ti,c�i�a. WA 98765
Plrone/Fax Number (360 543 -21[JO �AK (360 543 -0012
Water Qtrcrlity Regu/ating Agency and Standards: Ci,tv of Turi�ov
Contributing Area (Acres): 6 C Factor or CN: 98
Do you want Maintenunce provided by Stormwuter Manogement? aC Yes No
If no, wl�o will be responsible jor m�intenaace?
Plio�ie Na�nber:
Describe Lajid Use:
Sediment Potential: Low x Medium High
Oi! Qnd Grease: Low x Normal Heavy
Otl�er Pollutants or data available7 �o�i.L �eri,e�i� cv cZa�v I,oa�n.
Comme�its: IVeed� r�vi,�.w c.Qwc�il,et� i,w 2 d,a��+
O STORMWATER MANAGEMENT 12/10/97
STORMWATER�'
MANAGEMENT
CS� PROJECT INFORMATION SHEET #2
SAMPLE
(ORIGINALS FOR USE IN UPDATE SECTION)
CSF� DROP- N F LT
ER DATA
DESIGN WATER QUALiTY FLOW (cfs) I d•
PEAK FLOW (cfs) f
RETURN PERI00 OF PEAK FLOW (yrs) 2�
RADIAL FLOW CARTRIDGES REQUIRED G'J
CSF' STORMWATER SYSTEM SIZE U,r �Z
(In-Out)=2 3' Min I E MATERIAL DIAMETER
INLET PIPE 1 I?�t• 3 I�'/Z I 8
INLET PIPE I ���o I /✓,�4
INLET PIPE #3 it/�/�q 1�/�q
OUTLET PIPE I ZtD t� N'/� I 8�'
RIM ELEVATION(S)
�i�
1 �w 4
2��3
2 =2�d•�� \3 =?-�4•�
ADJUSTABLE LID YES�
DOOR OPENING DIRECTION (FACING
DOwNSTREAM SEE FiGURE ABOVE
EXAMPLE `2 TO 1' OR 1 TO 2'
USE 'N/A' FOR METAL GRATE)
T
H-20 TRAFFIC RATED LID �C�CE�/NO
[AODER YES/�
ANTI-FLOATATION BALLAST WIDTH HEIGHT
(USE N/A IF NOT REQUIRED)
r
sroRn+rwarER�
MANAGEMENT
CS� PROJECT 1NFORMATI4IV SHEET #2
SAMPLE
(ORIGINALS FOR USE IN UPDATE SECTION)
CSF L NEAR F LTER DATA
DESIGN WATER QUALITY FLOW (cfs) Q, Z�
PEAK FLOW (cf s) Zp
RETURN PERIOD OF PEAK FLOW (yrs)
RADIAL FLOW CARTRIDGES �g
CSF STORMWATER SYSTEM SIZE �XZp
RIM ELEVATION //D.0
I E MATERIAL DIAMETER
INLET PIPE it//,�q I�/� I �I�
OUTLET PIPE �/v 4"
OVERFLOW PIPE /Q$.
STORMWATER�'
MANAGEMENT
CS� PROJECT INFORMAl70N SHEET #2
SAMPLE
(ORIGINALS FOR USE IN UPDATE SECTION)
CSF OPEN F LTER DATA
DESIGN WATER QUALITY FLOW �cfs) 3•
PEAK FLOW (cfs) I /v 3
RETURN PERIOD OF PEAK FLOW (yrs) I Z�
RADIAL FLOW CARTRIDGES �p
CSF� STORMWATER SYSTEM LENGTH �f��
CSF STORMWATER SYSTEM WIDTH lG�
TOP OF WA�L ELEVATfON ��•.3
FINISHED FLOOR ELEVATION 1 /�v•
WALL HEIGHT
NUMBE OF FLOW SPREA
(In—Out)=2 4' M�n I E MATERIAL OIAMETER
INLET PIPE 1 I �/Z.� ��✓l� I�Z
INLET PIPE I !iI l�i
INLET PIPE #3 ��A I Nl�
OUTLET PIPE Go�✓L
STORMWAtER
MANAGEMEN
CSF� PR4JECT 1NFORMA770N SHEET #�3
SAMPLE SITE PLAN
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D1
STORMWATER'"
MAHAGEMENT
I
Introduction
Figure 1 shows a typical CSF'� Drop-In filter which consists of one or more pre-cast
concrete vaults ranging from 6'x8' to 8'x18' in size These units treat peak water quality
design flows ranging from 017 cfs to 0 8 cfs Drop-In urnts can be placed in senes or
parallel to treat higher fiows if needed
Design Considerations
Typically, the D�op-In is installed in-line with the storm system They can be �nstalied
with traffic bearing lids for parking lot applications, and for all practical purposes, take up
no land area
Ma�or design cons�derations are
Water Quality Fiow Range from 0 17 to 0 80 cfs (higher for multiple Drop-In Urnts)
2 3 feet of drop from the inlet invert to the outlet invert
Access for Maintenance
Pretreatment cons�derations
Buoyancy Measures
High Flow Bypass for flows >2 2 cfs
Applications
Parking lots
Roadways
Residential developments
Retail/commercial developments
Business/industr�al s�tes
Maintenance fac�lities
The Design Process
The followmg design documentation has been constructed as a step by step procsss to
allow for easy and efficient incorporation into the c�vii construction documents by the
Civil Engineer
We recommend that you review the design cntena and call Stormwater Management if
you have any questions Our technical staff has a broad expenence base and can
ass�st you with your stormwater problems
STORMWATER MANAGEMENT 12/10/97
D2
PRECAST CONCRETE VoULT ACCE55 DOORS
FIOw SPREAOER ��ROUTES
RADIAL FLOW CARTRIOGE
I BACKfWSM PORT
INLET BAY
iLOW
PVC PiPE M4NIFOLO
SLIDE GATE VALVE
SUNP TRENCH
CSF� DROP-IN FILTER SECTION VIEW
NTi.
L`FtStormntrr gieatruenf �yslem
vs v.mn e aar aso
axo onsu v �.�o ra�oe
OAtIM18 PfN�fNC
I Or���f Y� "'�J'y 1F�rrr
STORMWATER CSF"'STOR1/fYATER TREATbIENT SYSTE6f
M A N A Q E M E N T CSF DROP—!N FILTER
r� mur ao roia�a ar es mues w r� PICtJRB 1�
d
Figure 1
STORMWATER MANAGEMENT 12/10/97
D3
STORMWATER"'
MANAGEMENT
1 I
Important Files for this Unit:
DI SPEC.TXT ASCII text file Specifications
DI SPEC.DOC Word 7.0 file Specifications
608CSF.DWG AutoCAD Version 12 6'x8' Drop-In Standard Detail
612CSF.DWG AutoCAD Version 12 S'x12' Drop-In Standard Detaii
814CSF.DWG AutoCAD Version 12 8'x14' D�op-In Standard Detail
818CSF.DWG AutoCAD Version 12 8'x18' Drop-In Standard Detail
DROPDATA.DWG AutoCAD Version 12 Drop-in Data Biock Detail
NOTE: Periodically check our web site at http:/lwww.stormwatermgt.com to see
if there are design changes. Updated files can be downloaded.
Step 1- Verify with Local Agency
Venfy with locai agency if the CSF� is an app�oved BMP Technology If approved,
proceed to Step 2 If not yet accepted, call StoRnwater Management for assistance in
gaining approvai
Step 2 Calculate Flows
Calculate water quality flow (Q� and peak conveyance flow (Q�) usmg approved
hydrologic models which are usually estabiished by the regulatory agency If there are
no agency gu�delines we recommend the Santa Barbara Urban Hydrograph method for
the water quality flows Evaluate the need to ad�ust flow based on land use and C
factor, using methodology outlined in the System Design section
Step 3- Pretreatment and Bypassing
Establish need for pretreatment and bypassmg needs as outiined in the Pretreatment
and Bypassmg sections of the System Design section
6' x S' vaults �nnll require a pretreatment manhole
If Q� �s greater than 2 2 cfs, the facility should have a high flow bypass
Step 4- Size the CSF�
Determine the numbe� of cartndges required, and then size the CSF� based on
Table 1 below The number of cartndges is determined by
O STORMWATER MANAGEMENT 12/10/97
D4
449 gp'n cfs
Number of Cartridges Qtreat x
15 gp
Cartridge
There may be cases where more cartndges are added as more of the site is
developed if this is the case, the urnt should be s�zed to the ult�mate build out
conditions
Table 1
Determination of CSF'� Drop-In Dimensions
CSF�' Flow Typ�cal Number Nominal Extenor
Model Rate of Cartridges Footprint
Number (cfs) Available Width Length
6x8 Up to 0 17 4 or 5 7 9
6x 12 0 20 to 0.30 6 or 9 7 13
8x 12 0 40 to 0 46 12 or 14 10 14
8x 14 0 40 to 0 60 12 to 18 10 16
8x16 0 53 to 0.74 16 to 22 10 18
6x 16 0 67 to 0.87 20 to 26 10 20
Sx14/8x14 0.90 to 1.34 27 to 40 10 36
8x 14/8x 16 1 37 to 1 47 41 to 44 10 38
8x16/8x16 1 50 to 1.60 45 to 48 10 40
8x18/8x16 1.64 to 1.74 49 to 52 10 42
8x18/8x18 1 77 to 1.87 fi3 to 56 10 44
Note Availability of vault dimensions may vary with region
For Example Q 0 45 cfs Therefore. the number of cartndges 0 45 449 15
13 5 cartndges Round up to 14 and then use Table 1 to set the vault size at 8x14
Step 5- Determine Inlet and Outlet Geometry
Diagram how the CSF�' fits into your storm system
Determine rim and pipe invert elevations for the CSF� Remember that a difference
of 2.3 feet must be mamtained between the mlet and outiet invert elevations Note
Use of standard riser sections w�ll help reduce the overall cost of a urnt.
The CSF� requires a mirnmum depth of 5 25 feet from the top of the lid to the invert
of the outlet
Show all pipe penetrations on the site plan Pipes can enter the CSF� from the end
or the side withm the confines of the mlet bay The inlet p�pe is preferably 0 1 feet
above the invert of the flow spreader wh�ch is 2 2 feet from the invert of the outlet
pipe The mlet invert may be g�eater than 01 feet but additional energy diss�pa�on
O STORMWATER MANAGEMENT 12/10/97
D5
features may be required mside the vauit The typical vauit is about 7 feet deep
from the top of lid to the invert of the outlet pipe Pipes may enter at an angle,
however as the angle �ncreases, the penetrat�on becomes elliptical and begins to
�mpact the strength of the vault's side The hole cast mto the vault is typically 2"
greater in diameter than the outside diameter of the pipe Angies greater than 10°
from perpendicular to the face of the vault should be spec�ied by the engineer on
the plans
Any type of pipe material can be used Smooth pipes such as PVC pipes should
have sanded fitt�ngs to ensure a good non-slip seal with the vault Stormwater
Management recammends the use of flex�ble couplings on both the inlet and outlet
ptpes
When setting the invert of the outlet pipe, remember to consider backwater effects,
especially �f the outlet pipe is discharging to a larger diameter drain pipe, open
channel watervvay or tidally influenced body of water Periodic fresh water
submersion of the CSF�" dunng extreme events is acceptable
Step 6 Grading Consideration
Determine if the lid is flat, or if it needs to be sloped to match finish grade Steep lid
slopes are available Venfy wnth Stormwater Management in case of siopes >1 0%
If the I�d needs to be sloped 3" or less across the length or width, an ad�ustable lid
may be specified Typ�cally it is less expenswe to have the lid blocked and grouted
in field by the contractor than to use an ad�ustable lid
In landscaped areas, keep the top of the vault raised to prevent it from receivmg
direct runoff
Step 7 Maintenance Access
Always s�te the CSF� with maintenance access in mind Keep the unit out of the
main travel way when mstalled in a paved area to avoid dynamic loading Place the
CSF� �n a parking stall when avadable
Specify which way doors should swing open to make the urnt most accessible.
In landscaped areas make certa�n that the CSF� does not have plants or other
amenities installed on the access side of the filter Metal grating can be used m
place of the standard doors in a non-traffic beanng application However, grating will
cost more Grating is most advantageous for maintenance access when the un� is
very shallow
Install a ladder if the depth from the top of I�d to the inve�t of the outlet exceeds 8
feet or is required by agency
Step 8 Buoyancy Considerations
If high groundwater is expected in the area� Table 2 can be used for est�mat�ng the
amount of anti-floatation ballast reqwred The table values below are dimensioned
O STORMWATER MANAGEMENT 12/10/97
D6
for ballast running along the entire length of both s�des of the filter indicated Ballast
connection details will be provided with shop dra�nnngs Contact Stomnwater
Management for the ballast dimens�ons for other vault depths and sizes
Assumptions Neglect soil fnction, Weight of Concrete =145 Ibs/ft"3, sod
weight 100 Ibs/ft^3, the groundwater �s to the top of the vault.
Table 2 Anti-floatation Ballast
CSF Anti-Floata�on CSF Anti-Floatabon
Model Standard Ballast Model Standard Ballast
Number Depd� (f� Width (ft� Height(f� Number Oepth ifd Width (ftl Height �fq
6x8 5 00 1 00 0 70 Sx14 5 00 0 80 0 50
6 00 1 50 0 75 6 00 1 25 0 70
7 00 1 80 1 25 7 00 1 55 1 35
I s oo I 2�o i 2s I e oo i 8o I� so
9 00 2.25 1 75 9 00 2 05 1 1 b
10 00 2.50 1 40 10 00 2.20 1 45
11 00 2 65 1.50 11 00 2 35 1 35
12 00 2 80 1 50 12 00 2 45 1.65
6x12 5 00 0 90 0.50 Bx18 5 00 1.25 0 65
I s oo I� zo i os I s oo I� so o0
I� oo I i as i.ZO �.00 I�� �.00
8 00 1 65 1 25 8 00 210 1 25
9 00 1 SO 1 45 9 00 2 30 1 25
10 00 1 95 1 30 10 00 2.45 1 25
11.00 2 05 1 45 11 00 2.55 1.65
12 00 215 1 45 12.00 2.65 1.90
STEP 9- Engineer's Cost Estimate
The CSF� Drop-In Filte� is usualiy bid on a lump sum basis
Stormwater Management will provide you w�th an estimate of the system cost as part
of the review process
Stormwater Management can also prov�de a maintenance cost estimate upon
request
Step 10 Stormwater Management Review
Stormwater Management will review your design at no cost
Fax your CSF� Pro�ect Information Sheet Numbe� 1 to Stormwater Management
Fax the Drop-In F�Iter Data block (Information Sheet Number 2) to Stormwater
Management
0 STORMWATER MANAGEMENT 12/10/97
D7
Fax the site plan to Stormwater Management (preferably 20 scale)
We will respond with comments or notify you that the design is m accordance with
our recommendations
Step 11 Submit Plans and Specifications for Agency Review
From the files provided by Stormwater Management, extract the appropriate file and
import it to your standard detail sheet You can remove the Stormwater
Management title block We recommend that you not make changes to the actual
drawing without checking �nnth Stormwater Management We also ask that the U S
Patent info�mation remain on the drawing This protects other people from adopting
proprietary product designs without their knowledge
Spec�fications can be imported into your specials section or piaced on a plan sheet
If there are no comments on review, proceed to the bidding and construction phase
of the pro�ect �therwise, make the changes noted and resubmit If needed, call
Stormwater Management with comments
END OF SECTION
0 STORMWATER MANAGEMENT 12/10/97
GENERAL NOTES: CS1�"'Slormwater Trealrnent System
U S PATENT No 5.322�829,
Nc 5.624.576 AND 01'HEIt U S
1) CSF STORMWATER TREATMENT SYSTEM 8Y STORMWATER MANAGEMENT. AND FORE[CN PATENTS PENDING
PORTLAND. OREGON (503-240-3393)
DESIGN
PROCESS TIPS
REFERENCE CS F DR OP-IN FIL DATA
DESIGN WATER OUALITY FLOW (cis� I
STEP 2 PEAK FLOW (cfs)
RETURN PER100 OF PfAK FLOW (y�s)
STEP 4 RADIAL F�OW CARTRIOGES REOUIRED 15 gpm/cortrrdge'
CSF' STORMWATER SYSTEM SIZE x� Nominat d�mens�ons
(In-Out)=2 3' Min r 1 E f MATERIAL DIAMETER
INLET PIPE 1
Note The�e ccn be one or
STEP 5 INLET PIPE �2 N/A N/A N/A more �nlet p�pes
INLET PIPE �3 N/A N/A N/A I
OUTLET PIPE I I I
RIM ELEVATION(S)
1 4 N/A
n` Use double or tnple 3'x3'
STEP 6 stondo�d doors
2 3i
2 N/A '�3 N/A
ADJUSTABIE LID YES/NO Use �f the I�d �s not level
Mox�mun screw ad�ustment �s 3"
OOOR OPENING DIRECTION (FACING
DOWNSTREAM SEE FIGURE A80VE TO
STEP 7 EXAMPLE �2 TO 1' OR 1 TO 2'
USE 'N/A' FOR METAL GRATEa
H-20 TRAFFIC RATEO LID YES/NO
LAODER YES/NO Use �f requ�red by Agency or
ANTI-FLOATATION BALLAST WIDTH HEIGHT 8 ft deep
STEP 8 �USE N/A IF NOT REOUIRED) N/A N/A
t
OROPDATA OwG
ALL DROP-IN VAUITS W1LL HAVE THE MAXIMUM
NUAABER Of FILTER INLET PORTS CAST IN
UNUSEO PORTS WILL 8E PLUGGEO
OR�OP-IN fI1TfR
oESnH c��� SlORMWAtER'
CSF' STORMWATER TIQEATYfNT S1rSTEAI M A N A A E M F M T
I w�aacT �+o I owu�a+c �uc wu�. wa oocuB� arn +a+rw�t a ms
.s s�ow �oo� e.,o.+ ee�a.+ �aoo►aoa�o �sa�asv
rs, cm,:.rbr .w, wa� r$/�/»�
L1
STORMWA TER
MANAGEMENT
Introduction
The CSF� Linear Fjlter consists of one or two pre-cast concrete channels that are 10 or
20 feet in length and 2'9" in width These units treat peak water quality design flows
ranging from 0 13 cfs to 0 27 cfs The CSF� Linear Filters are installed flush with
finished grade, function similar to a catch basin or trench drain The top of the unit has
either doors or grates for easy access The Linear Filter is typically installed inline like
the Drop-In Filter
Design Considerations
The Linear Filter, as illustrated in Figure 1, is installed as the primary rece�ver of runoff
similar to a grated catch basin The grate is a traffic beanng lid which allows the flter to
be installed in parkmg lots, and for all practical purposes, take up no land area
Some of the ma�or design considerations are
Needs 3 5 feet from the nm to the invert of the outlet for a covered unit
Needs a minimum of 3 0 feet from the nm to the �nvert of the outlet fo� a grated urnt
Access for Maintenance
Pretreatment and/or flow splitting needs
Maximum overflow capacity of 1 9 cfs assuming f�ee discharge over the concrete
overflow weir
The Linear Fiiter can be equipped with an intemai open channel gutter system which
conveys flows to a pretreatment device for the removal of excess sediments or heavy
loads of oil and grease The gutters are equipped with orifice restnctions to limit the
magnitude of flows into the pretreatment device mak�ng it an effective high flow bypass
Runoff enters the un�t by sheet flow from the paved surface It is captured in the side
gutter and flows to the pretreatment facility Water m the pretreatment fac�l�ty flows into
the body of the fiiter where it flows through the fiiter media, is collected in the under
drain and d�scharged out the lower pipe to a catch basin, manhole, etc
The filter is equ�pped w�th an overflow to insure there is no local flooding m the event the
filter cartr�dges are occluded w�th sed�ments Mamtenance of the urnt �s typicaliy less
because there are no confined space entry requ�rements, and access is very qu�ck and
easy
4 STORMWATER MANAGEMENT 12/10/97
Applications
The Lmear Filter is particulariy useful where small flows are being treated or the s�te is
very flat and there is little available hydraulic head to spare The unit can be conf�gured
between wheel stops �n a park�ng area which sheet flows n�noff to the unit
This style of urnt is also being used for treating runoff from fueling pads and loading
docks See examples of some of the possible Linear Filter applications on the follo�nnng
pages
Retro•Fit
The retro-fit market has many possible appiications for the Linear Filter The
Linear F�iter can be installed by replacing an existing catch basin without having
to "chase the grade," thus reduc�ng the high cost of re-piping the storm system
The Design Process
The foilowing design documentation has been constructed as a step by step process to
allow for easy and efficient incorporation of the linear filter into the civii construction
documents by the Civil Engineer
We recommend that you review the design criteria and call Stormwater Management if
you have any questions Our technical staff has a broad expenence base and can
assist you �nnth your stormwate� problems
PRE-TREATNENT M�NHOLE CSf' uNEaR PILTER ouTLET C�TCN BASIN OR MANHaLE
r
j
i
0 t AlvD CRE�SE
SE�iMENT
CSF LINEAR FILTER TYPICAL LAYOUT
SCALE N T 5
O STORMWATER MANAGEMENT 12/10/97
STORMWATL�I
MANAQEMENT
CS� LINEAR FILTER APPLICAl10NS
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MANAQEMENT
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L3
STORMWATER'�
MANAGEMFNT
Important Files for this Unit:
LN_SPEC.TXT ASC11 text file Specifications
LN_SPEC.DOC Word 7.0 file Specifications
LN_DET.DWG AutoCAD Version 12 Standard Detail
NOTE: Periodically check our web site at http:// www.stormwatermg�com to see
if there are design changes. Updated f�les can be downloaded.
Step 1- Verify with Local Agency
Ver�fy w�th local agency �f the CSF� is an approved BMP Technology If approved�
proceed to Step 2 If not yet accepted, call Stonnwate� Management for assistance in
gairnng approval
Step 2 Calculate Flows
Caiculate water quality fiow (Q�,� and peak conveyance flow (Q� using approved
hydrologic models which are usually established by regulatory agency If there are no
agency guidelines we recommend the Santa Barbara Urban Hydrograph method for the
water quality flows Evaluate the need to ad�ust flow based on land use and C factor,
and detention using methodology outlined in the System Design section
Step 3- P�etreatment and Bypassing
Due to its small size we recommend the use of pretreatment for all linear filters
The linear filter's overflow weir is designed for a maximum peak fiow event of 1 9 cfs
before the water surface etevation reaches the bottom of the grate
The pretreatment device can be a manhole or small vault with a down tumed 90° ell
as shown in the previous figure
Step 4- Size the CSF�
Determine the number of cartndges required, and then size the CSF� based on
Tabie 1 below The number of cartridges
449 gpm cfs
Number of Cartrrdges Qtreat x
15 g
Cartrtdge
O STORMWATER MANAGEMENT 12/10/97
�a
There may be cases where more cartridges are added as more of the site �s
developed if this is the case, the unit should be sized to the uitimate bwid out
conditions
Table 3
Determination of CSF'� Linear Dimensions
CSF� Flow Number of Nominal Ex�erior
Model Rate Cariridges Footpnnt
Number Icfs) Available Width (ft� Length (ft)
Single Up to 0.13 3 or 4 3 10
Double 0.14 to 0.27 5, 6, 7 or 8 3 20
Note Availability of vault dimensions may vary v�nth region
Footpnnt length does not include inlet or outlet catch basm
Un�ts with 5 or 6 ca�tridges can have bu�lt-in pretreatment
For Example Q� 0 18 cfs Therefore the number of cartndges 0 18 449 15
5 4 cartridges Round up to 6 and then use Table 3 to set the Linear fiiter size at a
double unit (3'x20')
Step 5- Determine Inlet and Outlet Geometry
Determine nm and pipe invert elevations for the CSF� The elevation difference
between the nm and the 4" outlet pipe is 3 5 feet for a covered un�t and 3 0 feet for
the grated unit Remember that the CSF�" Linear filter should aiways be set level
Any type of p�pe mater�al can be used Smooth p�pes such as PVC pipes should
have sanded fittings to ensure a good non-slip seal with the vault Stormwater
Management recommends the use of flexible coupiings on all the inlet and outlet
pipes
When setting the invert of the outlet pipe, remember to cons�der backwater effects�
especially if the outlet pipe is discharging to a larger diameter drain pipe, open
channel watervvay or tidally influenced body of water Penodic fresh water
submers�on of the CSF� dunng extreme events is acceptable
Set the invert of the outlet pipe for the outlet catch basin (or manhole) such that the
water surface elevation of the hydraulic design storm (e g 25 year stoRn) does not
exceed the crown of 4" inlet pipe
Pipes leaving the linear filter should be set to slope using Manrnng's equation for
open channel flow In general, the outlet catch basin (or manhole) should be placed
as near as poss�ble to the L�near Filter
O STORMWATER MANAGEMENT 12/10/97
L5
In some cases the trench concept of the Linear filter can be extended by the addibon
of trench drains such as Polydrain�
Step 6 Grading Consideration
The linear fiiter needs to be set level Maximum allowable longitudinal siope is
0 42% or 1" in 20 feet Maximum allowabie cross slope is 2%
Step 7 Maintenance Access
Always site the CSF'� v�nth maintenance access in mind To avoid dynamic loading,
try to keep the unit out of the main travel way when instalied in a paved area Place
the CSF� �n a parking stall when available
In landscaped areas make certain that the CSF� does not have plants or other
amenities installed on the access side of the filter The nm elevation should be a
minimum of 1" above the f�nished landscape grade
Step 8 Buoyancy Considerations
Buoyancy measures are not required for the Linear Filter
Step 9- Engineer's Cost Estimate
The CSF� L�near Filter is usually bid on a lump sum basis
Stormwater Management will provide you with an estimate of the system cost as part
of the review p�ocess
Stonnwater Management can also provide a maintenance cost estimate upon
request
Step 10 Stormwater Management Review
Stormwater Management will review your design at no cost
Fax your CSF� Pro�ect Information Sheet Number 1 to Stormwater Management
Fax the Linear Data block (Information Sheet Number 2) to Stormwater
Management
Fax the site plan to Stormwater Management (preferably 20 scale)
We will respond w�th comments or notify you that the design is m accordance with
our recommendations
O STORMWATER MANAGEMENT 12/10/97
L6
Step 11 Submit Plans and Specifications for Agency Review
From the disks prov�ded by Stormwate� Management, extract the appropnate file
and import it to your stand and details sheet You can remove the Stormwater
Management title block We recommend that you not make changes to the actual
drawing wrthout checking with Stormwater Management We also ask that the U S
Patent information remain on the dravinng This p�otects other peopie from adopting
proprietary product designs without their knowledge
Specifications can be imported into your speciais sectio� or placed on a plan sheet
If there are no comments on review, proceed to the bidding and construction phase
of the pro�ect Otherwise make the changes noted and resubmit If needed, call
Stormwater Management with comments
END OF SECTION
O STORMWATER MANAGEMENT 12/10/97
1
CSJ�'�Slormwater Treatment System
GENER NOTES: u s PATENT No 5,3zz.s2s,
No 5.624�598 AND OTNER U S
1) CSF STORMWATER TREATMENT SYSTEM 8Y STORMWATER MANACEMENT. AND FOREIGN PATENTS PENDING
PORTLANO. OREGON (503-240-3393)
DESIGN
PROCESS TIPS
REFERENCE
CSF� LINEAR FILTER DATA
DESIGN WATER OUALITY FIOW (cfs) From 0 13 to 0 2 cis
STEP 2 PEAK FLOW (cfs) Mox�mum tlow of 1 3 cfs
RETURN PERIOD OF PEAK FLOW (cfs) I
STEP 4 FLOW CARTRIQGES 4. 5. 6. 7. or 8
CSF' STORMWATER SYSTEM SIZE x� 10' or 20'
RIM ELEVATION I
1 E MATERIAL DIAMETER
STEP 5 INLET PIPE I� I Optionol
OUTI.ET PIPE 4" I E ot 3 0' below rim
OVERFI.OW PIPE G minimurn
L�NDATA OWG
n "R uN�R BTORMWAT�I f
OESICN DATA w
CSf' S'TORA/WATER TRfATMENT Sl'STEY A N A 0 E M E N T
�cT I orw�,+c wWu ��e ootuew �ua raRrtMa a+ a�r
�s �o.v �oas a aoq�s�oaom �ao+a�
J�ii (iAG YWI ROI OAR. 1��
o�
ST�RMWATER'"
MANAGEMENT
Introduction
The CSF� Open Filter consists of large pre-cast or cast in piace vaults which may or
may not have a traffic bearing I�d These units are vanable in size rang�ng from 10' x 20'
to multiple un�ts measunng 25' X 100' These units are designed to treat peak water
quality design flows ranging from 0 8 cfs to in excess of 8 cfs
Design Considerations
Since these units are larger, they are more specialized and site specific They are
usually incorporated into the grading plan and frequently will have vanable wall he�ghts
as well as varying lengths and widths to fit the specific site des�gn constraints
Our techrncal staff is experienced in the siting of these facii�t�es, and will p�ovide you
with assistance at your request
Some of the ma�or design considerations are
Needs a minimum of 2 4 feet of drop from the inlet invert to the invert of the outlet
Outlet hydraulics and backwater conditions
Siting Issues
Access for Maintenance
Needs for Pretreatment and/or flow splittmg
Buoyancy Measures
Structural considerations for cast In place units
Appiications
These unrts are typically used in large commercial and residential developments,
roadways and regional water quality facii�ties for m�xed land use Design of these units
is typically associated �nnth detentioNsedimentation ponds or vaults
Regional Facilities
In many cases a municipality desires to construct a regional facility to treat large
mult�-owner and muiti-use properties This can be done as a water quality
retrofit pro�ect or as part of a new development These types of pro�ects are
O STORMWATER MANAGEMENT 12/10/97
02
sometimes difficult to fund due to sequenc�ng of development and sharing of
costs by developers and/or land owners
The CSF� Open Filter can help accommodate phased financ�ng For example,
the facility structure can be constructed and the cartridges added on an "as you
gop basis, or the entire facility can be constructed in phases
The Design Process
The follornnng design documentation has been constructed as a step by step process to
allow for easy and efficient incorporat�on into the c�v�l construction documents by the
C�vil Engineer There are many different configurations for the CSF� Open Filter The
standard details provided are representative of typical installations
Structural details are submitted dur�ng the shop drawing review process
We recommend that you review the design critena and call Stormwater Management if
you have any questions Our technical staff has a broad expenence base and can
assist you with your stormwater problems
Custom Designs
In some instances custom designs are required Stormwater Management's
engineenng staff has the capability of producing drawings and details should they be
needed There may be extra costs associated with custom designs
O STORMWATER MANAGEMENT 12/10/97
03
STORMWATER
MANAGEMENT
f
Important Files for this Unit:
OP_SPEC.TXT ASCII text fle Specifications
OP_SPEC.DOC Word 7.0 file Specifications
OP DET.DWG AutoCAD Version 12 Standa�d Detail
NOTE: Periodicaily check our web s�te at http:llwww.stormwatermgt.com to see
if there are design changes. Updated files can be downloaded.
Step 1- Verify with Local Agency
Verify with local agency �f the CSF� �s an approved BMP Technology If approved,
proceed to Step 2 If not yet accepted, catl Stormwater Management for assistance in
gaming approval
Step 2 Calculate Flows
Calculate water quality flow (Q�� and peak conveyance flow (Q using approved
hydrologic modeis which are usuaily established by regulatory agency If there are no
agency guidelines, we recommend the Santa Barbara Urban Hydrograph method for the
water quality flows Evaluate the need to ad�ust flow based on land use and C factor,
and detention using rriethodology outlined in the CSF� System Design Introduction
Step 3- Pretreatment and Bypassing
The CSF� Open Filter typically requires pretreatment, espec�ally large regional
facilities rece�vmg roadway runoff and sediments
The filter should have a high flow bypass if the peak design flow exceeds 2 2 cfs per
42" length of weir
Step 4- SiZe the CSF`�
Determine the number of cartr�dges required The number of cartndges �s
determmed by
44 9 gp'n cfs
Number of Cartrrdges Qtreat x
15 gp
Cartrtdge
4 STORMWATER MANAGEMENT 12/10/97
04
There may be cases where more cartndges are added as more of the site is
developed if this is the case, the urnt should be sized to the ultimate build out
condit�ons
Step 5- Dimensioning the CSF� Open Fiiter.
Establish if the Open Filter wiil have a lid or �nnil be open Urnts with a lid typicaily
have a spread footing ranging from 12" to 24"
Determine intenor dimensions of the CSF� based on Table 1 below usmg the design
water qual�ty flow determmed m step 2 Add 2' for estimating extenor length and
width Oversize the urnt as appropriate if future expansion of the site is anticipated
Write these dimensions in the spaces provided in the Design Data Block
CSF Open Filter Sizing Table
W ater Quality Total Interior Interior RFC/Line Rows/
Fiow (cfs) RFC W idth (ft) Length (ft} Cell 1 x Cell 2 Cell
1 74 52 8 0 38 5 6x7 4
1 87 56 8 0 40 0 7x7 4
2 01 60 8 0 42 0 7x8 4
2 14 64 8 0 44 0 8x8 4
2 17 65 11 0 38 5 6x7 5
2 34 70 11 0 40 0 7x7 5
2 51 75 11 0 42 0 7x8 5
2 61 78 12 5 38 5 6x7 6
2 67 80 11 0 44 0 8x8 5
2 81 84 12 5 40 0 7x7 6
3 01 90 12 5 42 0 7x8 6
3 04 91 14 0 38 5 6x7 7
3 21 96 12 5 44 0 8x8 6
3 27 98 14 0 40 0 7x7 7
3 48 104 15 5 38 5 6x7 8
3 51 105 14 0 42 0 7x8 7
3 74 112 14 0 44 0 8x8 7
401 120 155 420 7x8 8
4 28 128 15 5 44 0 8x8 8
4 81 144 20 0 44 0 8x8 9
5 35 160 21 5 44 0 8x8 10
5 88 176 23 0 44 0 8x8 11
6 42 192 24 5 44 0 8x8 12
6 95 208 29 0 44 0 8x8 13
7 49 224 30 5 44 0 8x8 14
8 02 240 32 0 44 0 8x8 15
8 56 256 33 5 44.0 Sx8 16
9 09 272 38 0 44 0 8x8 17
9 62 288 39 5 44 0 8x8 18
10 16 304 41 0 44 0 8x8 19
10 69 320 42 5 44 0 Sx8 20
Table 1• CSF� Open Filter Sizing
0 STORMWATER MANAGEMENT 12/10/97
Q5
Determ�ne top of wall erevation �Qr nm elewation for cavered units� and ptace the
number �n#a the design data black If the unit has no lid, keep the tap af wall
e[eva#�on a min�murrt vf above �he ground surface
Determ�ne the inlet pipe invert eleWat�on and place this �urnber into the design data
block.
Calculate the fin�shed flaar e�evat�an af the cartfldge bays w#��ch are a minimum 1 83
fe�t beiow #he inv�rt af the infet p�pe. Place this number on the Design aata Block
Set the crown of the outlet p�p� to match the crawn of the 4" PVC pipe marnfold
Crawn vf 4" PVC �s 15 fee# below the finished floor et�v��on
Determir�e the numb�r af fiow spreaders for the system us�ng Tabte 2 I� the peak
design flows e�ceed the max�mum flow from 7able 2, high flow bypass�ng needs ta
be cons�dered Place the number �f flarnr spreade�s in fhe des�gn Data Block
Table 2
D�termining the Number of Flow �preaders
CS�" UVidth IVumber of 42" Maxrmum Flaw
Ran�e Flaw Spreaders Gapacity
S' 2�cf$
8' 1�' 2 4 4 cfs
1�'-18' 3 I fi�cfs
Calculate the w�ll he�ght by subtrac#Rng the #ap af wal� elevation from the finrshed
floor etevation Place thrs number �nto the appr�prrate space prov�ded on the Des�gn
aata B1ock
The CSF� �pen Units are available in either pre-cast or cast in place des�gns
Structural deta�ls rnn11 be pravided by Stormwater Mar�agement to #h� Con#ractor vi�
shop draw�ngs, to be reviewed by the engineer
Custom des�gns ar structural drawings can be provided by Stormwater IIl�anagement
dunng the design reuiew process
�ther S#ant�ard Dimens�ons•
Radial Flaw Cartr�dges �R�C} spaced 1 75' on a Ime
7 Q' minimum f��om �enter af RFC to side or end wall
2.75` minimum from �enter af RFC to ups�ream ssde of �ut[et Bay wall
75' m,n�mum from center of RFC to end wall far s�de wall inlet pipe
a? outiet a�y w�dtn
Step 8- Sit�ng the CSF� �pen Filter
Keep CSF� Dawnstrearn af other Stormwater Structures Whenever pos�ib�e,
posEt�on the �SF� downstream of deten#ran structures, sedimentation, and flow
STa�MV1lATER MANAGEMENT 12J10l91
os
splitting devices Positioning the CSF� downstream of these devices will potentially
decrease the frequency and cost of mamtenance for the unit
Maintenance Access Always site the CSF� �nnth maintenance access in mind
Open Filters are typically fenced m landscaped areas Make certain that the CSF�
does not have plants or other amenities mstalled on the access side of the filter.
Provide access to a minimum of one side along the length of the filter for vehicle
access Assume H-20 loadmg with a 12 foot mirnmum v�ndth
If the unit is fenced, the fenc�ng along the access side must be removable
For covered urnts, keep it out of the main travel way Place the access doors for the
CSF� in a parking area when available Specify which way doors should swnng open
to make the unit most accessible
Evaluate the v�sual impacts of the facility Remember, its primary function is to
collect stormwater pollutants
Step 7 Buoyancy
For large units, concrete ballast �s typ�cally cost prohibitive Dunng the design
process, verify groundwate� elevations with the proJect geo-technical engineer
For systems sub�ect to high groundwater, a perimeter dram can be mstalled
Typicaliy the drain cons�sts of a 4" perforated drampipe surrounded by d�ain �ock
and filter fabric The drain discharges to the outlet bay of the CSF�
The Engineer is responsible for anti-floatation measures
STEP 9- Engineer's Cost Est�mate
The CSF� Open Fiiter is usually bid on a lump sum basis
Stormwater Management will provide you with an estimate of the system cost as part
of the review process
Stormwater Management can also provide a maintenance cost estimate upon
request
Step 10 Stormwater Management Review
Stormwater Management will rev�ew your design at no cost
Fax your CSF� Pro�ect Information Sheet Number 1 to Stormwater Management
Fax the Open Filter Data biock (Information Sheet Number 2) to Stormwater
Management
O STORMWATER MANAGEMENT 12/10/97
07
Fax the site plan to Stormwater Management (preferably 20 scale)
We �nnll respond v+nth comments or notify you that the design is m accordance with
our recommendat�ons
Step 11 Submit Plans and Specifications fo� Agency Review
F�om the disks provided by Stormwater Management, extract the approp�iate file
and import it to your standard detaiis sheet You can remove the Stormwater
Management title block We recommend that you not make changes to the actual
drav�nng without checking v�nth Stormwater Management We also ask that the U S
Patent information remain on the drawing This protects other people from adopting
proprietary product designs without their knowledge
Specifications can be imported into your specials section or placed on a plan sheet
If there are no comments on review, proceed to the bidding and construction phase
of the pro�ect Otherw�se make the changes noted and resubmit If needed, call
Stormwater Management with comments
END OF SECTION
4 STORMWATER MANAGEMENT 12/10/97
GENERAL NOTES CSJ�Stormwater Treatment System
U S PATENT No 5.322.829.
No 5.624.578 AND OTHER U S
i) CSF STORMWATER TREATMENT SYSTEM BY STORMWATER MANAGEMENT, ANO FOREtCN PATENTS PENDING
PORTLANO. OREGON (503-240-3393)
DESIGN
PROCESS TIPS
REFERENCE
CSF� QPEN FILTER DATA
DESIGN WATER QUALITY FLOW (cfs) I
STEP 2 PEAK FLOW (cfs)
RETURN PERIOD Of PEAK FLOW (c!s)
RAOIAL FLOW CARTRIOGES 15 gpm/co�tndge
STEP 4 CSF' STORMWATER SYSTEM LENGTH
CSF STORMWATER SYSTEM WIOTH �ov See Toble 1
TOP OF WALL ELEVATION I
FiN15HE0 FLOOR ELEVATION I
WALL HEIGHT
NUMBER OF FLOW SPREADERS 't�� See Toble 2
STEP 5 I E MATERIAL OIAMETER
INLET PIPE 1 I� I I
INLET PIPE �f2 �oo See Step 5
INLET PIPE (f 3 (IE In IE Out)=2 4' M�n
OUTLET PIPE I I I
OPENOATA DWG
ooc� r-�gi o�ta� oto� a�o
oa.�.n rar n..wm R o.=a OPEN FILTER
csf's�a� �a ��rwervr srsrEw �'ORMWM F T�R
an� aau� �n roRn.aa a� o�
sc�ut I v�cr «a I� �uc �u+a. tswsaaow aws�o�e�
�s saw wsw, �oeo.a.+
�s* mr �r ao► ww ��/�/!IY
M/� 111 /8 E 18�f E A1 T
0 0 a S s
A. Bidding/Construction Phase Process Outline
B. Construction Obseevation Checklist
1. CSF� Drop-In Filter
2. CSF� Linear Filter
3. CSF� Opero Fiiter
C. Filte� Media lnstaliation Request Form
STORMWATER MANAGEMENT 12/10/97
B1
ST4RMWATER�'
MANAGEMENT
A typical process for the bidding and construction phase of a pro�ect �s listed below
1 Contractor obtains bid package from engineer
2 Contractor subm�ts s�te plan and des�gn data to Stormwater Management for review
and quotat�on
3 Contractor's bid is submitted to owner/engineer for opening
4 Contractor wins contract
5 Contracto� piaces an order with Stormwater Management for the system Contractor
coordinates delivery time and location
6 Stormwater Management subm�ts Product Package to contractor for review
The Product Package is comprised of
Shop drawing of urnt (for pre-cast urnts)
Constn,ction Details (for Cast in Place units)
Operations and Maintenance Guidel�nes
Installation Guidelines
Const�uction Observation Checklist
Cartndge Instaliation Request Form
The Contractor is responsible for having shop drawings reviewed by the site civil
engineer or designated representative Upon approval, the shop drawing(s)
is/are returned to Stormwater Management with authonzation to proceed
7 Pr�or to detivery of a pre-cast system, the Contractor needs to complete the
following
Excavation and sub-base preparation to design lines and grades
The system w�ll be delivered to the s�te, and then the contractor
Sets the vault (Contracto� may be required to provide crane to lift precast vault
sections from the truck See Stormwater Management quotation for details)
Grouts inlet and outlet p�pes
Grouts intenor concrete waiis
Attaches energy dissipater
Backfill and compact to specificat�on
Site clean up
O STORMWATER MANAGEMENT 12/10/97
62
8 When proJect construction is complete and the site is clean, the system is then ready
for the instaliation of the filter cartndges The contractor needs to complete and
retum the Cartrldge Installatjon Reques! Form to Stormwater Management and
schedule the delivery of the cartndges (Please ailow two weeks for delivery of
cartridges
9 Stormwater Management personnel install the ca�tndges and verify the system is
operationai
4 STORMWATER MANAGEMENT 12/10/97
STORMWATER'"
MAIVAGEMENT
CS� Dro -In Fil ter
p
Date: Observer:
Project Name: Project Number:
Contractor Name:
Site Conditions:
0 Vegetation/erosion controls in place before filter is operational The CSF� is
not intended to treat construction related sediment loading All stormwater
pipes and catch basins should be cleaned prior to putting the CSF�' on-line
Vault Doors:
Operational
0 Correct location
Vault JointslPenetrations:
0 Seal all �oints with Conseal �oint seal
0 All pipe penetrations sealed with grout (make sure the inside edges are smooth)
0 Pipe inverts and diameters
Interior Concrete Walls:
Properiy grouted in place
0 Fiow spreaders attached and sealed
Cart�idges:
0 Correct number installed as per plans (by Stormwater Management)
D Plugs installed in floor where cartridge not required (by Stormwater Management)
Energy Dissipater:
Attached properly
Gate Valves:
Installed with stem collar set properiy
Comments:
O STORMWATER MANAGEMENT 12/10/97
STORMWATER"'
MANAGEMENT
CSF Linear Fi�ter
Date: Observer:
Project Name: Project Number:
Contractor Name:
Site Conditions:
0 Vegetation/erosion controls in place before filter is operational The CSF�' is
not intended to treat construction related sediment loading All stormwater
pipes and catch basins should be cleaned pnor to putting the CSF�' on-line
Grates:
Operational
Correct location
Vault Joints/Penetrations:
0 Seal all �oints w�th Conseal �oint seal
All pipe penetrations sealed with grout (make sure the inside edges are smooth)
D Pipe inverts and diameters correct
interior Concrete Walls:
0 Properly grouted in place
Cartridges:
C7 Correct number instalied as per plans (by Stormwater Management)
Plugs installed in floor where ca�tridge not required (by Stormwater
Management)
Gate Valves:
installed with stem collar set properly
Comments:
4 STORMWATER MANAGEMENT 12/10/97
sroRMwarER�
MANAGEMENT
CSF O en Fil ter
p
Date: Obsenrer:
Project Name: Project Number:
Contractor Name:
Site Conditions:
0 Vegetation/erosion cont�ols in place before fiiter is operational The CSF�' is
not intended to treat construction related sediment loading All stormwater
pipes and catch basins should be cleaned prior to putting the CSF� on-line
Access Doors:
0 Correct location and operational
Joints/Penetrations:
Seal �oints with Conseai �oint seal as specified
All pipe penetrat�ons sealed with grout (ins�de edges to be smooth)
Pipe inverts and dtameters correct
Panel Posts:
Set in concrete as specified
Interior Concrete Walls:
0 Attached securely in proper orientation
Sealed with silicon as specified
0 Set to proper elevation and level
Outlet Bay Grating:
0 Hot dipped galvanized as spec�fied
0 Grating set properly into frame
Relief Drains:
4" Perforated pipe with discharge as shown on plans
PVC Piping Netwo�k:
0 2" connection points open and clean for cartridge installation
0 Couplings flush with outlet bay
4" PVC lines clean
STORMWATER MANAGEMENT 12/10/97
Radial Flow Cartridges (installed by Stormwater IlAanagement):
0 Correct number installed as per plans (by Stormwater Management)
C) Plugs installed in floor where cartridge not required (by Stormwater
Management)
Slide Gate Valves:
0 Co�rect number installed as specified
0 Valve set to correct partial open setting
Comments:
m STORMWATER MANAGEMENT 12M 0/97
sroRn�rwarER�
fl�1 A N A G E M E N T FlLTER MED/A /NSTALLATIOIY
REQUEST FORM
P�o�ect Name Pro�ect Number
Dear Contractor or Owner
in order to serve you more e�ciently, Stormwater Management (SM) requests that this form be
filled out pnor to scheduling the installation of the fiiter cartridges for your CSF� Stormwater
Treatment System Also attached for your informat�on is the Construction Observation
Checkijst that will be used dunng the cartndge �nstallation
It is important to understand the CSF� is not intended to treat construction related sediments in
its normal operation Ideally the CSF� should not be put in operation untd the site's sediment
has been stabilized with the final landscaping and/or paving The site's stormwater system
including the CSF�, catch basins and interconnecting pipes should be cleaned of sediment
loads deposited during the construction process pflor to placing the CSF� on-line
The CSF� can be utilized for treatment of construction sed�ment loads as a sedimentation
structure prior to installation of the cartridges Contact us for detaiis if interested in this option
The stormwater system will still require cleaning pnor to filter cartndge mstallation.
Please check the box if it applies to your site
1) The site is not stabil�zed� however, the Owner understands that mstallation of the
cartndges pnor to sed�ment stabilization wili potentially mcrease required maintenance for
the CSF� until the sediment is stabilized
2) A flow splitter stn,cture �s upstream of the CSF� and the inlet pipe is plugged to keep the
filter off-line until the site is ready Local Jurisdiction's approval (if required) has been
obta�ned
3) Construction sed�ments are stabilized and cleaned from the site
Please fill in the requested data and sign form before faxing back to SM Upon receipt of this
form, SM will call to schedule the installation Please allow 2 weeks for delivery If you have
any questions regarding this fo�m or the installat�on process� do not hesitate to call us
I have �ead the above and verify the CSF� on site is ready for filter cartndge installation In the
event that the site is not ready when SM arnves on site, I agree to pay for SM's travel time at
$50/hour plus $2/mile to and from the site
Contractor Owner Information (circle one)
Company Name
Contact Name
Mailmg Address
Phone Numbe� Fax
S�gned Date
I I I I
C'�'.F� �TORI6�WA TE1� 7'1�A T'1�E11TT' �'�',ST'�1�
Note: This guideli�e should be use�l as a part of the site stormwater
management plan.
2035 N.E. Columbia Bivd.
Portland, Oregon 97211
1-800-548-4667
(503) 240-3393 Fax (503) 240-9553
http://www.stormwatermgt.com
s
12/ 10/97
Product Support
�OIAJ��1 �IVI !�'IUT
2035 N E Columbia Blvd
Portland, Uregon 97211
Phone (503) 240-3393 Fax. (503) 240-9553
1-800-548-4667
http //www stormwatenngt com
12/10/97
SECTION 1
INTRODUCTION TO CSF�' STOR;MWATER TREATMENT SYSTEMS
1.1 DESCRIPTION
The CSF� Stormwater Treatment System is offered tn three diffecent configurations the Drop-In Filter, the
Linear F�iter, and the Open Filter (see figures I- 3) Each uses Rad�al Flow F�Iter Cartridges typically housed
�n standard size pre-cast concrete vaults to produce a self-contained stormwater filtering system The filter
systems are installed �n-line w�th storm dra�ns The filter works by pass�ng stormwater through the Rad�al Flow
Filter Cartr�dges containing CSF� filter med�a The filter media traps particulates and adsorbs materials such as
dissolved metals and hydrocarbons Float�ng surface scums and insoluble oil and grease are also removed
After passing through the filter media, the stormwater flows into a collection pipe or discharges to an open
channel drainage way
1.2 OPERATION
1.2.1 Purpose
The CSF� �s a system designed to improve the quality of stormwater runoff from the urban env�ronment before
it enters rece�v�ng �vatenvays it is intended to function as a BMP (Best Management Practice) to meet local,
state, and federal requ�rements wh�ch have been developed to comply with the Clean Water Act
Through mdependent third party studies, �t has been demonstrated that CSF� filters are highly effective for
treatment of first flush flows and flow paced flows dur�ng the latter part of a storm In general, the CSF�'s
efficiency �s h�ghest when pollutant concentrations are highest The primary target pollutants for removal are
Sediments (TSS), Soluble Metals, and Oil Grease
1.2.2 Siz�ng
CSF� filters are sized to treat the peak flow of a�vater quality design storm, as �t passes through the filter The
peak �1ow is determined by calculations based on the contribut�ng watershed hydrology and us�ng a des�gn
storm magn�tude The design storm is usualty based on the regulatory requirements set by the local stormwater
management agency The part�cular size of a CSF� unit is determ�ned by the number of Rad�al Flow F�lter
Cartr�dges (see F�gure 4) requ�red to t�eat the peak stormwater flow. Each card�dge �s des�gned to treat a peak
flow of 15 gpm For example a peak des�gn stormwater flow rate of 150 gpm would requ�re that l0 cartridges
be used �n the treatment vault
Because of the h�ghly porous nature of the granular filter med�a, the flow through a �ewly �nstalled cartridge is
restricted to 15 gpm, us�n� a valve, to ensure adequate pollutant-med�a contact t�me.
1.2.3 Basic Function
The CSF� unit �s designed to allow stormwater runoff to percolate horizontally through a radtal flow filter
cartridge contaming filter med�a The granular compost filter med�a acts as a mechanical filter to remove
sediments aod as an ion exchanger to remove d�ssolved heavy metals The media also acts as an adsorber to
remove O�ls and Greases
12/10/97
Radial Flow Cartridge Filter Priming System Diagrani Post Flow
Air Rel�et Valve
Threaded Csp
Nood
Fioat
Frlter Surface
r�
j Y
n
j Filter Media j Filter Med�
f
i inner Dra�nage Tube
v h I
1
r Buoysnt Bsll
v i
Water Flow
Direction I j
v G
i j Ball Sest
V i
r Flow Control Valve
Concrete Floor 2 in. Connection Nipple
M Drainage Manifold P�pe
Figure 4. Individual Radial Flow Filter Cartridge
1.2.4 Priming System Fuaction
The treated stormwater collects in the center tube of the cartr�dge wh�ch �s equipped with a self prim�ng s�phon
system This system, �llustcated by F�gure 4, consists of a"ball valve" located at the base of the cartridge and
a float located at the top of the cartridge. In�tially the ball rests in a seat effect�vely closing off the port to the
dra�nage manifold As a result, the filter fills the center dramage tube until the water level has riseA high
enough to purge the a�r from the filter cartridges and displaces the float At a water depth of 22 inches the float
pulls loose the ball and allows the filtered water to dra�n out through the manifold Th�s effect�vely "primes" a
s�phon with�n the drainage tube and greatly increases the potential across �e filter. The prim�ng system
increases the durabil�ty (ab�l�ty to be loaded w�th sed�ment) of the CSF� A related feature is the CSF� "hood"
Th�s hood ma�nta�ns the s�phon effect by preventing a�r from being drawn �nto the cartr�dge unt�l the external
water level drops below the bottom of the hood
All CSF� un�ts are designed with an overflow The overflow operates when the inflow rate is geater than the
�nfiltrat�on capac�ty of the filter media Early in the ra�ny season sed�ment loading w�li have only a small affect
on the infiltrat�on rate of the filter med�a As the season progresses, sed�ment will build up on the vault floor
12/10/97
and on the filter surface Bu�ld-up of sed�ment will cause the infiltcation rate to gradually slow As the
operat�ng season continues to progess, sediment �ccumulation w�ll continue to cause the infiltration capac�ty to
decrease. At some point tt may be necessary to perform orifice ad�ustment ma�ntenance, which tnvolves further
opening of the flow control valves
The CSF� is aiso equipped w�th scum baffles that trap float�ng debr�s and surface films, even during overflow
conditions Depend�ng on indrvidual site characteristics, some filters are equipped with high and/or low �low
bypasses High flow bypasses are instailed when the calculated peak storm event generates a flow wh�ch
overcomes the overflow capacity of the filter This is espec�ally �mportant for the Drop-In filters Low flow
bypasses are sometimes installed to bypass continuous mflows caused by gound water seepage, wh�ch usually
do not require treatment
1.2.4 Maintenance Overview
The pr�mary purpose of the CSF� is to filter out and prevent pollutants from entering our water ways Like any
effective filtration system, periodically these pollutants must be removed to restore the CSF� to its full
effic�ency and effect�veness Maintenance requ�rements �nd frequency are dependent on the pollutant load
characterist�cs of each site To assist the owner with ma�ntenance issues, Stormwater Management provides
detailed Operation Ma�ntenance Gu�delines with each un�t
Ma�ntenance serv�ces can be prov�ded completely, or in part, by Stormwater Management We prov�de track�ng
of all mstalled systems, notify the system's owner of maintenance needs, and nohfy the regulatory agency that
the system has been mamtained
Ma�ntenance is usually performed late in the dry season to re�uvenate the fiiter media �nd prepare the system
for the next cainy season Maintenance act�v�ties can also be requ�red in the event of a chemical sp�ll or
excessive sed�ment load�ng due to site erosion or extreme storms It is also good practice to �nspect the system
after severe storm events
Media residuals can be re-composted to reduce residual hydrocarbons and then used �n landscaping, eros�on
control applicat�ons or da�ly cover for landfills This susta�nable process helps m�nim�ze total ma�ntenance
costs
12/10/97
sEC�oN 2
RECOMMENDED MAINTENANCE AND EXPECTED PERFOPSVIANCE
2.1 TYPES OF AZAIIVTENANCE
Presently, procedures have been developed for two tevels of m�intenance 1 Inspection/minor maintenance
and, 2 Ma�or ma�ntenance Inspection/m�nor ma��tenance activit�es are combined s�nce the m�nor mainte�ance
does not require special equ�pment and typ�cally littte or no matenals are �n need of d�sposal Inspection/minor
maintenance typ�catly mvoives opening the flow restr�cting valves (to pre-set levels) and clean up of vegetat�on
and debr�s Ma�or maintenance tncludes back flushing or cartr�dge replacement Ma�or maintenance may
�nvolve disposal of materiats which require cons�deration of regulatory gu�delines In addit�on, depend�ng on
the particular un�t configuration and equipment used, ma�or maintenance may requ�re an understanding of
OSHA rules Table 1 summar�zes the pr�mary act�v�ties associated wlth CSF� filter maintenance
Table l: CSF� STORMWATER TREATMENT SYSTEM MAINTENANCE
Faciliq� Component �fa�ntenunce hen 111nintenance Ac�vity Expected Facfliry Performance
Reqwring A[uintenance Activity Is Required ARer lliaintaimng
CSF" Filter Cartr�dges and Trash and Debns Remov�l Floatabic ob�ects or othet Permanent removal from storm
Containment Structure trosh �s pr�ent m the filt�rr Remove to system
avoid hindrance of fiitrat�on and
el�minate unsipJ�tiv debr�s and trash
Vegetat�on Removal Weeds or othet vegetation �s gro�vmg Remove weeds and other ve�etat�on to
from the s�des of the canndges avoid interference with �nfiltrat�on
Cartridge Replacement and 1 Media has becn contam�nated by high l New med�a �s able to eflectrvely
Sediment Removal levels of pollutants, such as aRer a spill veat stortmvater
2 Compast infiitration capac�ty �s
unrecoverable by b�ck flushmg due to 2 Restore the �nfiltration capac�ry of
exccssrve sed�ment loadin�. the cartndRes
Dra�na�e S}�tem P�ping Flushing W�th Water Drainage system �s obstructed by debns Outflo�v �s not restncted
or sed�ment
Preceding Sed�ment Trash and Drbns Removal Ev�dence of trash or floating de6ns �n Trash and debns removed aesthet�cs
Trappmg Devices (Ponds, �vater improved, potent�al pollunan sonrce
S�vales, Sedimcntation removed
Manholes, etc
5ed�ment Removal Reduced swra�e depth due to sediment Sediment �s removed to design depth
(excavat�on. dred��n�, accumulat�on forebay or mc�nhole regams sed�ment
vacuuming) trappm� e�ciency
12/10/97
2.2 MAINTENANCE ACTIVITIES
2.2.1 Maintenance Activity Timing
Three scheduled �nspect�ons/maintenance activities should take place during the year One of these dates are
for m�nor ma�ntenance actrvrt�es (routine inspect�on, debris removal, further opening of the flow restr�cting
valve) The second date is to determ�ne the type of major maintenance r�quired and, if required for disposal,
obtain samples of the sediments and compost It �s often poss�bte to determ�ne what type of maintenance will
be requ�red dur�ng the valve adJustment v�sit In th�s case, the second visit may be om�tted unless samples of
the filter media and sed�ment are requtred for analys�s The third scheduled date �s to perform major
ma�ntenance actrv�ties (back flush�ng or replacement of the compost cartridges and associated sediment
removal) in addition to the scheduled actrvities, it is �mportant to check the cond�t�on of the filter after ma�or
storms to check for damage caused by high flows and to check for high sed�ment accumulat�on wh�ch may be
caused by local�zed erosion �n the drainage area It may be necessary to ad,Just maintenance act�v�ty scheduling
depend�ng on the actual operatmg conditions encountered by the filter system
In general the m�nor maintenance act�vities �vill occur dur�ng the ra�ny season, the ma�ntenance inspect�on will
occur in early to mid summer, and the ma�or ma�ntenance work will occur in late summer to early fall when
flows into the filter are not likely to be present
The months indicated in Table 2 show the best recommended t�mes of year for ma�ntenance activit�es to occur
in the Pacific Northwest
Table 2: WORK CALENDAR FOR TYPICAL WET/DRY SEASON
WET I WET DRY I WET
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
X XX XX XXX �:XX
X= Schedule Observation And Minor Ma�ntenance.
XX Schedule Maintenance Inspection aod media sampling during one of these months.
XXX= Schedule Major Maintenance during one of these months.
2.2.2 Msintenance Activity Frequency
The pnmary factor controlling timmg of ma�ntenance for CSF� filters is sed�mentat�on A properly funct�oning
filter will remove solids from water by trapp�ng these particulates within the porous structure of the med�a The
flow through the filter will naturally decrease as more and more sol�ds are trapped Eventually the flow through
a filter will be low enough to requ�re mamtenance At th�s time e�ther the media is back flushed (purge
sediment by revers�ng flow direction) or the cartridges are replaced Sediment should be removed from
upstream trapping devices on an as needed bas�s to prevent materiai from be�ng re-suspended a�d discharged to
the filter
Site condit�ons greatly influence maintenance requ�rements CSF� filters located tn areas w�th erosion or actrve
construction should be inspected and mamtained more oRen than those �n fully-stabil�zed areas w�th little
eros�on The maintenance frequency may be ad�usted as addit�onal mon�toring �nformat�on becomes ava�lable
during the inspectton program Areas wh�ch develop known problems should be inspected more frequently
than other areas which demonstrate no problems, part�cularly, after large storms Ultimately, inspection and
12/10/97
mamtenance act�v�t�es should be scheduled based on the h�storic records and character�stics of an ind�v�dual
filter It is recommended that the ma�ntenance agency develop a database to properly manage compost filter
ma�ntenance progams
Pnor to the development of the maintenance database, the ma�ntenance frequencies shown in Table 3 should be
followed Frequenc�es shouid be updated as required The recommended �n�tial frequency for inspection/m�nor
maintenance is two t�mes per year for the drop-�n unit. CSF� un�ts should be inspected �fter all ma�or storms
Sediment removal on an annual bas�s �s recommended unt�l further knowled�e is g�ined about a particular
filter
Table 3: FREQUENCY OF MAINTENANCE ACTIVITY
INSPECTION/MINOR MAJOR MAIIVTENANCE
1VIAINTENANCE (TIMES/YEAR) �'TIMES/YEAR)
CSF�' Units 1�ancl after ma,jor storms) 1(exce�t in the case of a s�ill)
2.3 MAINTENANCE CREW REQUIREMENTS
Table 4 lists the ant�c�pated crew requ�rements for filter maintenance operations The removal of back flush
water and sediments during ma�or ma�ntenance act�v�t�es can be accomplished using e�ther a pump and water
truck or a vacuum truck All applicable safety (OSHA) and disposal regulat�ons should be followed A general
descr�ption of the ma�ntenance act�v�ties follows
Table 4: ANTICIPATED CREW REQUIREMENTS
[nspection/M�nor Ma�or M��ntenence. M��or Ma�atenance:
Maintenance Sediment Removai CArt�idEe Re�lBCement
Laborer
Util�ty Worker 1 1 1
Sen�or Sewer O�erator
Vacuum/Water Truck Operator 1 1
Haul�n� Truck 4perator 1
Total 1* 2* 3*
Special Requ�rements Knowledge of Proper Knowledge of Back Knowledge of
Valve Pos�tioning Flush Procedures Cartridge Removat
and Installation
Procedures
May requ�re QSHA trained person if vault entry occurs
12/10/97
2.4 MAINTENANCE METHODS
2.4.1 Minor M�inteaance/Valve Adjustmeet Method (Once A Year)
Minor maintenance typically w�ll ��volve the steps below, however if it appears that a sp�ll of some type has
occurred, the local hazard control agency and Stonnwater Management should be notified immediately. In t6e
case of a spill, the worker should �bort maintenance activities until the prope� guidance has been
obtained.
Steus for Mmor Maintenance
1 Maintenance ta be performed by a ut�lity worker famil�ar with CSF� un�ts
2 If applicable, set up safety equ�pment up to protect pedestrians from fall hazards presented by
open doors Also set up appropr�ate safety equ�pment for work near roadways
3 lnspect the external cond�t�on of the unit and take notes concern�ng defects/problems
4 Open the doors to the vault and allow the filter to a�r out for 5-10 m�nutes
5 Without enter�ng the vault, inspect the inside of the unit, includ�ng components
6 Take notes about the external and �ntemal condit�on
7 Give part�cular attention to record�ng the level of sed�ment build-up on the floor of the vault �n the forebay,
and on top of the internal components If flow is occurr�ng, note the level of water and estimate the flow
rate per dra�nage pipe Record all observations
8 Remove large loose debr�s and trash should be removed using a pole with a grapple or net on the end
9 Locate the flow restr�cting sl�de gate valves
10 Open the valves furcher by pulling upward on the handle of the sl�de gate using a pole w�th a r�ng on the
botiom end Open the valve fully on the m�d-season v�sit
11 If flow is occurring, note the relat�ve increase due to opening the valve
12 Close and fasten the door, and remove safety equ�pment
13 F�nally, make notes about the local drainage area relative to ongoing construction, erosion problems, or
h�gh loadings of other materials to the filter
12/10/97
2.4.2 Major Maintenance Inspection (Once A Yesr)
The pr�mary goal of the ma�or ma�ntenance �nspect�on �s to assess the cond�tion of the cartridges relat�ve to the
level of sediment load�ng It may be desirabte to conduct this inspect�on during a storm to observe the relat�ve
flow through the compost cartridges If the submecged cartr�dges are severely plugged, large amounts of
sed�ments should be present, very little flow will be discharging from the dramage pipes, and �t is likely that the
cartridges need to be replaced if the submerged cartndges are only partiatty plugged, s�gn�ficant flow wtll still
be discharging from the dramage pipes, only low levels of sediment w�ll be present, and back flushing may be
the appropriate ma�or maintenance type Ma�or maintenance mspection w�il typ�cally mvolve the steps below
However, if �t appears that a sp�il of some type has occurred, the local hazard control agency and Stormwater
Management should be notified immediately In t6e case of a sp�ll, the worker should abort maintenance
activities until the proper guidance has been obtained.
Steus For Pre-Maior M�intenance Insaection
1 Ma�ntenance to be performed by a utility �vorker familiar w�th CSFF��" units
2 If appl�cable, set up safety equ�pment to protect pedestrians from fall hazards presented by open doors
Also, set up appropriate safety equ�pment for work near roadways
3 Inspect the external condition of the unit and take notes concerning defects/proble�ns
4 Open the doors to tl�e vault and allow the vault to air out for 5-10 minutes
5 Without entering the vault, grve the inside of the un�t, including components, a general cond�tion
�nspect�on
6 Take notes about the external and internal condition
7 Give part�cular attention to recording the level of sed�ment bu�ld-up on the floor of tl�e vault, �n the forebay,
and on top of the mternal components
8 Remove large loose debris and trash using a pole with a grapple or net on the end
9 If the vislt �s dur�ng a storm, make the flow observat�ons d�scussed above
l0 Close and fasten the door, and remove safety equipment
11 Make notes about the local drainage area relative to ongomg construct�on, eros�on probiems, or h�gh
loadings of other materials to the filter
12 Review the condition reports from the previous minor ma�ntenance v�sit Review the current condition and
determ�ne the appropr�ate type of ma�or maintenance If no flow observat�ons have ban made, use the
following critena back flush the un�ts if there is tess than 1 inch of fine sed�ment (not coarse debr�s such
as bark mulch) build-up on the floor of the vault, reptace the cartridges �f there �s more than 1 inch of fine
sediment build-up
12/10/97
2.4.3 Msjor Maintenance/Back Flushing Method
Major ma�ntenance/back flushing typically w�ll involve the steps below Howevec, if �t appears that a sp�il of
some type has occurred, the local hazard control agency and Stormwater Management should be notified
�mmed�ately In t6e case of a spill, t6e worker s6ould abort mainten�nce activities until t6e proper
guidance has been obtained. Depend�ng on the configuration of the part�cular filter, a worker may be requ�red
to enter the vault to perform some tasks If vault entry �s required, 4SHA rules for general confined space entry
must be followed Back flushing should occur dunng dry weather and �t may be necessary to plug the filter
inlet pipe if base flows exist
Depending on the nature of the sed�ments accumulated on the surface of the filter, back flush�ng may or may
not be an opt�on In cases where the sediment �s sticky and plastic, back flushing may not be effective
Ste�s For Back Flushine Ma�ntenance
1 A ut�l�ry �vorker and water (or vacuum) truck operator are required to perform this ma�ntenance The
veh�cle used to back tlush the filters must be equipped with a dev�ce to deliver a clean water flow of 1 S
gpm to each cartridge be�ng flushed In add�tion, the proper flush water hose to cartridge connectors must
be used Informat�on concerning the connect�on method is available from Stormwater Management
2 If appl�cable, set up safety equipment to protect pedestrians from fall hazards presented by open doors
Also, set up appropr�ate safery equipment for work near roadways
3 inspect the external cond�t�on of the unit and take notes concern�ng defects/problems
4 Open the doors to the vault and allow the filter to air out for 5-10 minutes
5 W�thout enter�ng the vault, give the �nstde of the filter a general condit�on inspect�on The atmospher�c
qualtty is tested using a properly cal�brated dev�ce Note: Do not perform vault entry if acceptable
atmospheric quality cannot be attained. Use OSHA equipment and guidelines.
6 Make notes about the external and internal condit�on
7 G�ve particular attention to record�ng the level of sediment bu�ld-up on the floor of the vault, in the forebay,
and on top of the �nternal components
8 Remove large loose debris and tra�sh us�ng a pole with a grapple or net on the end
9 Hose off or vacuum the outside of each basket with a low pressure spray or vacuum
10 The worker shoutd remove the 4" top cap from the back flush tube This tube �s centered at the top of each
cartr�dge (see F�gure 3, Cartridge)
11 Attach the back flush hose to the top of the back flush tube
12 Slowly fill the central dra�nage tube such that the ball valve does not become unseated Br�ng the flow rate
to a level between 15 and 20 gpm Apply a flow of approx�mately fo� a duration of 3 to 5 m�nutes It is
important that the amount of water �n the truck be sufficient to hose off and flush the required number of
cartr�dges, otherwise addit�onal refitl trips will be required (Stormwater Management ut�l�zes a
recirculating system and removes the sed�ment from the backflush water with a portable filter
12/10/97
13 Repeat steps 9 through 12 for all cartridges
14 Inspect the float mechanism to �nsure it travels freety in the center dra�nage tube If needed, apply a light
film of s�l�con lubricant to the cap Screw the cap be on insuring a water t�ght seal Inspect the a�r celief
valve to �nsure it operates
15 Pump (or vacuum) the fiush water and sed�ments from the vault back into the truck reservoir.
16 Locate the flow restr�cting sl�de gate valves
17 Reset the opening of the valves to �the lowest level by pushing downward on the ha�dle of the slide gate
using a pole w�th a ring on the bottom end The lowest level setting w�ll have been preset us�ng a
restraining collar on the valve shaft The valve opening correspond�ng to th�s setting is determmed by the
number of cartridges on the drainage line The valve opening is set to allow flow of 15 gpm/cartr�dge for
freshty charged or back flushed cartridges
18 Close and fasten the door, and remove safety equipment
19 Make notes �bout the tocal drainage area relative to ongoing construction, erosion probtems, or h�gh
Ioadings of other mater�als to the filter
NOTE: An alternate method to back flushing ts to completely remove the float assembly and plugg�ng the 2"
discharge port with an inflatable plug This plug must be able to fit ins�de a 2 inch d�ameter schedule 40 PVC
pipe until �nflated and is used to prevent the flush water from ex�t�ng through the outlet rather than passing
through the med�a The valve stem of the inflatable plug should be r�g�d �nd long enough to protrude
approx�mately 2 inches above the top of the back flush port when �nflated All other operations remain the
same
12/10/97
2.4.4 Major Maintenance/Csrtridge Replacement
Ma�or ma�ntenance/filter cartr�dge replacement typically �nvolve the steps below. However, �f �t appears that a
spill of some rype has occurred, the local hazard control agency and Stormwater Management should be
not�fied immed�ately. In the case of a spill, the worker should abort maintenance activities until t6e
proper guidance has been obtained. Depending on the configuration of the particular filter, a worker may be
required to enter the vault to perform some tasks If vault entry is requ�red, OSHA rules for general confined
space entry must be followed Filter cartridge replacement should occur dunng dry weather and it may be
necessary to plug the filter mlet pipe �f base flows ex�st There should be no standing water present in the vault
during this operation
Stens For Cartridge ReQlacement Ma�ntenance
1 Depending on the particular unit, one or t�vo utiliry �vorkers and a haul�ng truck operator will del�ver the
replacement cartridges to the location of the filter Information concerning how to obta�n the replaceme�t
cartridges is available from Storm�vater Management Arrangements should be made in advance for a
vacuum truck to clean out sed�ment pr�or to placing the new cartr�dges �nto the system
2 If applicable, set up safety equ�pment to protect pedestr�ans from fall hazards presented by open doors
Also, set up appropr�ate safety equ�pment for work near roadways
3 Inspect the external cond�tion of the un�t and take notes concerning defects/problems
4 Open the doors to the vault and allow the filter to a�r out for 5-10 minutes
5 Without entermg the vault, give the �nside of the unit, �nclud�ng components, a general condition
inspection
6 Make notes about the external and �nternal condit�on
7 G�ve part�cular attent�on to record�ng the level of sed�ment bu�ld-up on the floor of the vault, �n the forebay,
and on top of the internal components
8 Remove large loose debris and trash us�ng a pole with a grapple or net on the end
9 Using a boom, crane, or other device (dolly and ramp), off load the replacement cartridges l 50 Ibs each)
and set aside
l0 Us�ng an appropriate sl�ng, attach the cable from the boom, crane, or tripod to the cartr�dge being removed
Th�s actrv�ty may require that workers enter the vault to remove the cartridges from the dra�nage system and
place them under the vault opening for l�ft�n� Take care not to damage the drainage system connect�ng
PVC nipple Th�s n�pple should remain �nstalled �n the dramage pipes (See figure 4)
11 Remove the cartridge (250 lbs each) from the vault Care must be used to avoid damaging the cartr�dges
dur�ng removal and �nstallation The cost of repair�ng components damaged dur�ng maintenance wtll be the
respons�b�l�ty of the owner unless the operation is being performed by Stormwater Management and the
damage is not related to discharges to the system
l2 Set the used cartridge aside or load onto the hauling truck
13 Cont�nue steps 10 through 12 until all cartr�dges have been removed
12/ 10/97
14 Us�ng a vacuum truck, remove deposited sediment from the floor of the vault and, if large amounts are
present, from the forebay A vacuum truck may not be necessary �f the sediment �s relatrvely dry and the
unit ts small lt may be possible to shovel the sediment into conta�ners wb�ch, once full, are l�fted
mechan�cally from the vault and placed onto the haul�ng truck
I S Once the sediments are removed from the vault, �t �s necessary to assess the cond�tion of the cartridge-
drainage system connection nipples These are short sect�ons of 2 �nch schedule 40 PVC which should
protrude above the floor of the vault If requ�red, apply a light coating of FDA approved silicon grease to
the outs�de of the exposed portion of the nipples Th�s ensures a water tight connect�on between the
cartridge and the dra�nage pipe Replace any damaged nipples
16 Us�ng the boom, crane, or tripod, lower and install the new cartr�dges Once again, take care not to damage
connect�ons
17 Locate the flow restr�ct�ng slide gate valves
18 Reset the open�ng of the valves to the lo�vest level by pushtng downward on the handle of the sl�de gate
us�ng a pole with a ring on the bottom end The lowest level setting will have been preset us�ng a
restraming collar on the valve shaft The valve open�ng corresponding to this setting is determmed by the
number of cartr�dges on the drainage line The valve opening is set to allow a flow of 15 gprtt/cartr�dge for
freshly charged or back flushed filters
19 Close and fasten the door, and remove safety equtpment
20 Make notes about the local drainage area relat�ve to ongoing construction, erosion problems, or high
loadings of other mater�als to the fiiter
21. Finally, d�spose of the residual mater�als in accordance with applicable regulations Make arrangements to
return the used cartridges to Stormwater Management
2.4.5 Related Maintenaace Activities (Performed On An As Needed Basis)
CSF�' un�ts are often �ust one of many components �n a more comprehensrve stormwater dra�nage and treatment
system The entire system may include catch bas�ns, detent�on vautts, sedimentat�on vaults and manholes,
detention/retention ponds, swales, artificial wetlands, and othec mtsceilaneous components In order for
ma�ntenance of the CSF`� un�t to be successful, �t is �mperative that all other components be properly
mamtained The maintenance/repa�r of upstream fac�lit�es should be carried out prior to the CSF� ma�ntenance
activ�ties In add�t�on to cons�dering upstream fac�lit�es, it �s also �mportant to correct any problems ident�fied
�n the dra�nage area Dra�nage area concerns may �nclude. erosion problems, heavy oil gease loading, and
discharges of �nappropriate mater�als
12/10/97
2.5 TYPICAL EQUIPMENT REQUIRED FOR MAINTENANCE ACTIVITIES
Typical equipment required for conduct�ng ma�ntenance �s shown �n Table S Some of the materials listed are
suggestions rather than requirements It should be noted that there is more than one way to accompl�sh some
tasks Owners w�th available labor and equlpment resources may desire to use alternat�ve methods However,
it is adv�sable that guidance from Stormwater Management be obtained prior to using alternat�ve techn�ques
Quest�ons about proper equipment sboutd be directed to Stormwater Management.
Table 5: MAINTENANCE EQUIPMENT REQUIREMENTS
Muintenance Equi�ment Re�uired
Minor Ma�ntenance Pre-Ma�or Ma�ntenance Ma�or Maiatenance Back Ma�or Mamtenance
Valve Ad,�ustment Inspection Flushm� Cartridge Re�lacement
Safery Equ�pment* first Safety Equipment* first Safety Equ�pment* first Safety Equ�pment* first
aid, cones, barcicades, aid, cones, barc�cades, aid, cones, bart�cades, a�d, cones, barncades,
flagg�ng, flares, tape, flagg�ng, flares, tape, flagging, flares, tape, flagging, flares, tape,
vests, hard hats vests, hard hats vests, hard hats vests, hard hats
Work Clothes rubber Work Clothes rubber Work Clothes rubber Work Clothes rubber
boots, coveralls, �loves boots, coveralls, �loves boots, coveralls, �loves boots, coveralls, �loves
Door Bolt, Wrench, Door Bolt, Wrench, Door Bolt, Wrench, Door Bolt, Wrench,
Pentasocket And Pentasocket And Pentasocket And Pentasocket And
Miscellaneous Tools M�scellaneous Tools M�scelianeous Toois M�scellaneous Toots
Ta�e Measure T��e Measure Tape Measure Ta�e Measure
Flashli�ht Flashl��ht Flashl��ht Flashli�ht
Gra�pte or Net Pole Grapple or Net Pole Grapple or Net Pole Grap�le or Net Pole
Valve Ad�ustment Pole Record Keep�n� Forms Valve Ad�ustment Pole Valve Ad,�ustment Pole
Record Keep�n� Forms Trash/Debris Co�tainer Record Kee��n� Forms Record Keepin� Forms
Trash/Debris Container WaterNacuum Truck Vacuum Truck
Back Flush Connections Replacement Cartrid�es
Back Flush Flow Control Cartr�d�e Haulin� Truck
Spray Nozzle Lift�n� Device (3001b)
Cartrid�e Outlet Plu�s Shovels
Vault Inlet Pipe Plu� Extra 2 Inch PVC Caps
Back Flush T�mer Trash/Debris Conta�ner
S�I�con Valve Grease Vault Inlet Pi�e Plu�
Trash/Debr�s Container Dotl�r
Ladder PVC Pi�e Cutter
Ladder
Cartr�dge Insta{lation
And Removat Slin�
10 Feet of Extra 2 Inch
PVC P�pe
*Coafined space equipment mAy be required for vault ent�y. This equipment must be used by personnel wrth the appropriate
OSHA trAining This equ�pment typ�cally �ncludes. atmosphe�ic testing dev�ces, atmospheric pu�ging aad ventilatmg devices,
and ent�y. ex�t, and rescue assisting devices
12/10/97
2.6 MATERIAL DISPOSAL
The accumulated sed�ment found in stormwater veatment and conveyance systems must be handled and
d�sposed of in a manner wh�ch will not allow the material to affect surface or ground water It is possible for
sed�ments to conta�n measurable concentrations of heavy metals and organ�c chemicals (such as pestic�des and
petroleum products) Areas with the geatest potential for h�gh pollutant loading include industr�al areas and
heavily traveled artertals Sediments and Elush waters must be disposed of �n accordance w�th all applicable
waste d�sposal regulations It is not appropr�ate to d�scharge these mater�als back to the stormwater drainage
system Part of an�an��ng for ma�ntenance to occur should �nciude coordination of disposal of sot�ds (landfill
coordinat�on) and liquids (munic�pal vacuum truck decant facil�ty, local wastewater tceatment plant, on-s�te
treatment and discharge) Owners should contact the local public works department and inqutre about how the
department disposes of the�r street waste res�duals
Disposal methods or reuse of the compost contained in tl�e cartridges will be determined by Stormwater
Management If the material has been contaminated with any unusual substance, the cost of special handl�ng
and d�sposal �vill be the responsibility of the owner
12/10/97
Sample CS�' 1Vginor IV�aintenance And Inspection Data Sheet
Date: Location:
F�tter Size: TYPE: Open Drop-Ia Linear Personnel:
Filter Observations
Med�a Months �n Serv�ce•
Oil and Grease �n Forebay
Sed�ment Depth �n Forebay
Sediment Depth on Vault Floor
Structural Damage
Estimated Flo�v From Dra�nage Pipes (if available)
Cartridges Submerged (Yes No How Deep
CSF�' Minor Maintenance Activihes (check off if done and �ive descri�tion�
Remove Trash and Debr�s
Valve Ad�ustment (to full open)
Minor Structural Repairs
Dra�nage Area Report
Excess�ve Oil and Grease Load�ng (Yes No Source
Sed�ment Accumulat�on on Pavement (Yes No Source
Eros�on of Landscaped Areas (Yes No Source
Items Needing Furt6er Work:
Comments:
12/10/97
Sample CSF�' Major Maintenance Inspection Data Sheet
It may be des�rable to conduct this �nspect�on dur�ng a storm to observe the relatrve 11ow through the CSF'�
cartridges. If the submerged cartridges are severely plugged, large amounts of sediments should be present, very
littie flow will be discharging lrom the dramage pipes, and �t �s likely that the cartr�dges need to be repleced during
ma�or ma�ntenance. If the submerged cartrQdges are only part�ally plugged, s�gn�ftcant Ilow will still be discharging
from the drainage p�pes, oaly low levels of sedimeat w�ll be present, and back tlushing may be the appropriate major
ma�atenance type.
Date: Location:
Filter Size: TYPE: Open Drop-In Linear Personnet:
Fiiter Observat�ons
Med�a Months in Serv�ce
Oil and Grease in Forebay
Sediment Depth in Forebay
Sed�ment Depth on Vault Floor
Structural Damage
Estimated Fiow From Drainage Pipes (�f ava�lable)
Cartridges Submerged� (Yes No How Deep�
Draina�e Area Re�ort
Excessive O�I and Grease Loading (Yes No Source
Sediment Accumulation on Pavement (Yes No Source
Eros�on of Landscaped Areas (Yes No Source
Comments
Rev�ew the condition reports from the previous m�nor ma�nteaance visits. Rev�ew the current cond�t�on and
determ�ne the appropr�ate type ot maJor maintenance. If no tlow observ�t�ons have been msde, use the following
cr�ter�a: back itush the units if there is less than sbout l �nch of fine sed�ment (not coarse debris such as b�rk
mulch) bu�ld-up oa the tloor of the vault; replace the cartr�dges �t there is more than about 1 inch of fine sediment
bu�ld-up.
12/10/97
Sample CSF�' Major Maintenance-Back Ftush Data Sheet
Date: Location:
Filter Size: TYPE: Open Drop-Ia Linear Personnet:
List Safety Procedures and Equipment Used:
Filter Observations
Media Months in Service
Oil and Grease in Forebay
Sed�ment Depth �n Focebay
Sediment Depth on Vault Floor
Structural Damage
Draina�e Area ReQort
Excess�ve Oil and Grease Load�ng (Yes No Source
Sediment Accumulat�on on Pavement (Yes No Source
Erosion of Landscaped Areas (Yes No Source
CSF�' B�ck Flush Maintenance Act�v�t�es (check off if done and �ive description�
Remove Trash and Debr�s
Back Flush Cartridges (all or not?)
Sediment Removal (method�)
Quantity of Sed�ment Removed (estimate�)
Minor Structural Repairs
Res�duals (debris, sed�ment, flush water) D�sposal Methods
Notes/Problems:
12/10/97
Sample CSF� Major Maintenance-Cartridge Replacement Data Sheet
Date: Location:
Filter Size: TYPE: Open Drop-In Linear Personnel:
List Safety Procedures and Equipmeat Used:
Filter Observations
Media Months �n Serv�ce
Oil and Grease in Forebay
Sed�ment Deptl� �n Forebay
Sed�ment Depd� on Vault Floor
Structural Damage
Drainage Area Report
Excessive Oil and Grease Load�ng (Yes No Source
Sediment Accumulat�on on Pavement (Yes No Source
Erosion of Landscaped Areas (Yes No Source
CSF'� CartridQe Re�lacement Maintenance Activities (check off �f done and give descriQtion�
Remove Trash and Debris (Yes No Details
Replace Cartridges (Yes No Details
Sed�ment Removed (Yes No Details
Quantity of Sediment Removed (estunate�)
M�nor Structural Repairs (Yes No Deta�ls
Res�duals (debris, sediment) Disposal Methods
Notes/Problems:
l 2/ 10/97
Ii�1A111AGEAIf�1V T
o o o- o
A. CSF�'' Drop-In Filter Standard Detail
CSF� Linear Filter Standard Detail
C. CSF� Open Filter S$andard Detail
D. CSF� Open Filter with Cover
E. Standard Speci�cations
GENERAL NOTES: �s�ormi►ecer 1�eatrnea� system
1) CSF�STORMWAT� TREATMENT SYSTEM BY STORMWATER MANA,CEMENT. PORTIAND. QRECON (5�3-240-3393) Ne e eE s�s �r�c rn'� 'va
2) ALL CSF'�STORIdWATER TREATklENT SYSTEMS REOl11RE RECUTAtt MNNTENANCE REfER TO OPEftATtON ANO ���CN PATSN7S P6MDINC
MWNTENANCE MANUAL FOR OETAILS
3) PRE—CAST CONCRETE VAULT CON5TRUCTEO IN ACCORDANCE WITH l�STM C858
4) EXTERNAL PIPiNC ANO COUPUNGS PRBVIDEO 91r OTHERS
5) fLEX18LE COUPUNCS TO 8E SEi t� OUTSIOE FA�E OF wnLL. fERNCO OR ENGINEER ARPRd1fEp
6) SEE OROP—IN fILTER pATA SMEET FOR VAULT DIMENS�ONS. EI.EVATtONS ANO NUAI6ER OP CARTRIpGES
7) ANTI—F'LOATATION BALLaST TO 8E SET ALONG ENTIRE LENCTH OF BOTH S1DE5 OF FILTER AS ShlOWN
SEE OROP—IN fILTER QATA BLOCK fOR BALLAST WIDTH ANO HEIGHT DIMENSIONS
ANTI—FLOATATtON BALLpST
ALTERNATE PIPE
(B1r OTHERS)
PRE—CAST ALTERNATE
CONCRETE VAULT a o a a ENERGY OiS51PATER
Q
e I
A t t- =9r' A
A A
6AY�� 2
LAO ER ?YP 2' 1 X 2' SUMP
INLET PIPE
(Blr OTHERS)
6�
QUTLET PIPE
(81r OTHERS) FLEXIBLE COUPUNG
Z s�` (B1r OTHERS)
�2' 8 ENERCY DISSIPATER (TYP)
�o'�iz' �•/x
a f
o
PIPE MANIFOLD (TYP)
6'x8' CSF� DROP—IN FILTER PLAN VIEW 1
SG4LE N T S
s- 3 x3 o�oNo Pw� 000RS (rn) TRAFFIC BEARINC uo
l
�I _C'� ��y` y�
���y_
1'— OVfRFLOW S LNVT (TYP)
ROW SPREAOER ��V� �qpOER (lYP)
RA0�1L FLC
IOGE ('IYP)
SLIOE GATE t 4 5'
V�� MINIMUAA NOTE 1 E IN 1 E OUT 2.3' MIN
a
�PIPE
�yJ�,��;?,���i�,��,�i4 A�/WIFOLO (TYP)
��a 7� I Rt R
w��i. �,w)
6'x8' CSF� DROP—IN FILTER SECTION A—A A—A
SCAIE N T S
q� ats�oKa an� otoaa er, oaa onr•
o�., R g� .00�oio, en aoa ,�,e OROP—IN FILTER STANDARD OETA/L $fQRMWA�.R'
�n PLAN AND SfCflON V/EW M A N A 0 E M E N T
CSF' STOR�IWATER TREATAIENT S1'STEM
ss•� �a+zct Ka o�wwa rus �wE. ea� eun naRn�a ae w�
.s sNOw aa-rao�-a000 �sr.o.c aio�a4a�o t�oa�o-ms
GENERAL NOTES:
6s�sYo,msaeer 11rc,tment s�stem
1) (�STORMWATER TREATMENf SYSTEM 9Y STORAAWATER MANAGEMENT. PORTUND. OREGON (503-240-3393) u.9. PaTBrR No 6.a22.ezo.
2) ALL CSF�STORMWATER TREATMENT SYSTEA�IS REOUIRE RECULAR 1�tAINTEWWCE REFER TO OPERATION AND No 6 ea�.b7e ntYO o'iHBR u8
wuNTEwwCE M�wu�L fOR DETaLS AND fOR�CN PATBIQT9 P8N0ING
3) PRE-CAST CONCRETE VAULT CONSTRUCTEO IN ACCOROANCE WITH ASTM C858
4) EXTERNAI PIPiNG AND COUPUNGS PROVIOEO 9Y OTHERS
5) FLExiB�E COUPUaCS TO 8E SET OuTSiOf faCE OF wnU.. FERNCO OR ENCINEER APPROVED
6) SEE OROP-IN FtLTER OATA SHEET FOR VAULT pINENStONS� ELEVATIONS AND NUMBER OF CARTRIDCES
7) ANTI-fLOATAT10N BAILAST TO BE SET ALONG ENTIRE LENGTH OF 80TH SIOES OF FILTER AS SNOWN
SEE OROP-IN FII.TER QATA BL�CK FOR BALLAST WIDTN AN� HEIGHT O1MEN5lONS
ANTI-FLQATATION BALLAST r ALTERNATE PIPE
(BY OTHERS) (81r OTHERS)
�s a a r u s s s s s aj v 1
PttE-CAST 1'-2 3/4 1� �2 1� 1�'2' �r I
CONCRETE VAULT L--� t
11 1/2" INLET BAY
1'-ld'—
A 6 -�i i
A ,r It�IET PtPE
(BY OTHERS)
s
Q r
2�->
oun� P�PE �x�eLE couPUNc
(8Y OTHERS) -2 (s�r on�Eas>
4 ��z' �Z,'� ENERGY Di55iPaTER (tt�)
I r. t G x 4� .SV�P
4 4
a a a a n s a
Y Y r
RAOIAL FLOW PIPE M/WIFOLD (TYP)
CARTRIDCE {TYP)
6'x12� CSF� DROP—IN FILTER PLAN vlEw 1
SCALE N T S
3-3 x3 01�►MOND PWTE OOORS (lYP) TitAFFIC Bfl�RING UO
s' .i i� t' r r
��rr �'r�Yrr-;r'�
�y
OVERFLOW JOINT SEAIANT (1YP) f
ROUTES PI.OW SPREADER (TYP)
RAOtAL f'LOW
GIRTRI�E (71'P)
SuDE GATE
VALVE (TYP) MINIMUM o
NOTE. 1 E IN I E OUT 2 3' MIN
045`
c� a
a c L
PIPE AAIWifOLO (TYP) -�`,..,.'�-�-,...�,-Q
w INTERIOR WALL (1YP) ac:�����'�������
6'x 12' CSF� DROP—IN FILTER SECTION A—A A—A
SCALE N T S
aso� n�� o�oao er oaa ouc�
OROP—JN F/LTER StAN0AR0 OFTAIt g�pRMWATER
o�.� i�. i ��o irw PLAN AND SECTION VIEW
CSF' STORYWATER TR£ATMENT S1�STEA/ M A N A O E M E N T
�Ne oocu�a�►euo� rome� on ao:e
I S�At!- I PRp�IECt ND OIWIttN� fU,[ N�WG
t�l10�f �iAA��'
i A5 9+OrM f�p7 6t?L�.O�C
GENERAL NOTES: �'Slormnaler 1�retmene sygtem
1) CSF�STORMWATER TREATMENT SYSTEM 8Y STORMWATER I�uw�►GE�E�vT. PORtUwO, OREGON (g03-240-3393) No a eP .a�e �o a� v.s
2) ALL CSF STORAAWATER TREATMENT SYSTEMS REQUIRE REGUTAR I�AA�NTEntANCE REFER TO OpERAT10N AND �D Po�tE1CN P�TBM's PBNDUVC
MNNTENANCE MNNWIL FOR OETAILS
3) PR£-CAST CONCRETE VAULT CONSTRUCTEO IN ACCOROANCE VVITFI ASTM C858
4) QcTERNAt. PIPING AND COUPUNGS PftOVIDED 81r OTHERS
5) FLEx18lE COUPUNGS TO 8E SET 1�' OuTSIDE FnCE OF wnLL FERNCO OR ENCINEER APPRpvED
6) SEE OROP-IN FIITER DATA SHEET FOR VAULT OIMENSIONS. ELE1/ATIONS ANO NUAABER OF CARTRIQCES
7) ANTI-F�OATATION BALLAST TO HE SET ALQNG ENTIRE LENGTH OF BOTH SIOES OF FiLTER AS SH01MN
SEE DROP -IN FlITER pATA BLOCK FOR BALiAST WIOTH ANO HEIGHT QIMEI�lONS
ANTI-FLOATATION BAW�ST
(er on�ERS) a�TER�aTE PiPE
(8Y OTHERS)
v a
4 0
a
i
r��--� �o ,/r ��o �`/r
PRE-CI�ST T
y A
CONCRETE VAULT Q A
c 1'-�
2
a
U�/ INLET PiPE
(8Y OTHERS)
t'- t t /2"
3'
OUTIET PIPE 6 8 FLEXIBLE COUPUNG
(8Y OTHER5) (9Y OTHERS)
OUTLET j a/
8AY
iNTERfOR WALL (TYP) 2' �N� �Y 1' X 4' SUMP
12'
I I F--t' 6
—�-i—<
a
\RADIAL FLOw
PIPE IrtANIFOI� (?YP) CARTRIOGE (TYP)
8'x12' CSF� DROP—IN FILTER PLAN VIEW 1
SCALE N T S
3-3 x3 DIAMOND PU►TE p00RS (TYP)� T��C BEARING UD (TYP)
1
1 ti 1
-6 �`����y
ft
JOINT SEALANT (TYP) ��yy SRREADER (TYP)
OVERFL W
ROUTE�
RADtAL FLOW
CARTRiOGE (1YP)
45
suoE ca,rE MINIMUM
vawE (m)
j NOTE I E IN I E OUT 2 3' 1�IN
a5�
o
L
...-..G�..�-.ti,..�
P�e �uw�fa�o
�i INTERIOR WAU. (TYP) ENERbY
DISSIPATER (1YP)
8'x12' CSF� DROP—IN FILTER SECTION A—A A—A
SCALE N T S
5i OROP-IN fiLTER STANQARD OETAIt
PUIN AND SECT/ON V/EW StORMWATER
MANAOEMENT
CSi'STORA/WATER TRFATNENT SrSTEM
i 1 sau �a►rcci �w. cxw�NO ����a �a+ aso
.s s+�ow� r�s e�xsr.o.c
1
GENERAL NOTES: c�stormAater n�+eatrneat s,p�t�em
u s p��wr No a.�zx,e�
1) CSF�STQRI�IWATER TREATMENT SYSTEM 8Y STORMwATER 1r1ANAGEMENT. PORTUINO. ORECON (503-2�0-3393) No a.02s 67s AND OTHBR u.8.
2) ALL CSf�STORMWATER TREATMENT SYSTEAAS REOUIRE REGULAR buUNTENANCE REfER TO OPERATION ANp �D POREtCN PATEN7S PENDING
WUNTENANCE DAlWUAL FOR OETAILS
3) PRE–G4ST CONCRETE VAULT CONSTRUCTEO IN ACCOROANCE WtTM ASTM C858
4) EXTERNAL PIPINC AND COUPUNGS PROVIDED 8Y OTHERS
5) FLEXIBLE COUPIIN(S TO 8E SET 1�' OUTS�DE FACE OF WALL. FERNCO OR ENGINEER APPROVEp
6) SEE OROP–IN FILTER DATA SHEET FOR VAULT DIMENSlONS. ELE1/ATtONS AND NUAABER OF CARTRIDGES
7) ANTt–FLOATATION 9ALLAS'T TO 8E SET ALONG ENTIRE LENGTN OF BOTH SIDES OF fILTER aS SHOWN
SEE OROP–IN FlLTER QATA BLOCK FOR BALLAST WIDTH M1D HEICHT OIYENSIONS
ANTI–FLOATATION BALLAST
(8Y OTHERS) ALTERNATE PIRE
I I �8Y OTHERS)
PRE�CAST e i 0 a c o y
CONCRETE VAUIT o c o c
c d a- t 9
j I—�'—f �o f,o �/r ��—a• a
A A
I► f I
9 c'
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INLET PIPE
(8Y OTHERS)
B'
t'-t0 t/2'
t� 3 LADOER (iYP)�
OUTIET PIPE j/ FLD(19LE COUPLINC
(BY OTHERS) (81r OTHERS)
0 1' X 5' SU�AP
BAV j�� j INLET 8AY
i
14' 2•
c v c F-1 o
c 4� 1
D c p I
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S L O
PIPE MANIFOLD (TYP) �OW
CARTRIDGE (T1rP)
8'x 14' CSF� DROP—IN FILTER PLAN VIEW 1
SCAIE N T S
3 3 x3 �tAMONO PLATE OOORS �TYP) «F�C @EARING UO (TY�)
`i`�,\`�� y r
f �I ,,.a-���
6
OVERFIOW �OER (TYP) JOINT Sf11lAM (1YP) FLOW SPR R 7YP
ROUTES r
RADIAL FLOW
CARTRIDCE (TYP)
SLIDE GATE
VALVE (1'YP) 4 5
MINIMU�A j NGTE
j j j I E IN 1 E OUT 2 3' MIN
o j j i
�.�As�
t o C a p
c 7 c v
o PIPE ENERGY :'t
AtANIFOlO (TYP) OISSIPATER (TVP) A i
INTERIOR WA�L (lYP)
8'x14' CSF� DROP—IN FILTER SECTION A—A A—A
SCAI.E N T S
S+tEET cct�o+m n� aedQO sr o�a oas.
o� OROP-1N FlLTER STANOARD DETAIL g�pRMWATJER
PIAN AND SECTtON VIEW
MANAQEMENT
i CSF' STORMWATER TRE�I TA/ENT S'YST�M
sc� I w+oucr No. I oruwn�a r0.c wwc. �seau iaas� �ua so�a
�s sww� r�� s�se�s.o�e
GENERAL NOTES: �Storm�ater Treatr�ent System
1) CSF�STORAAWATER TREATMENT SYSTEY 91r STOl�IWAiER WWAGEYENT. PORTINrD ORECQN (503-240-3Sg3) U S PA?ENT No S.32E,829,
2) I1LL CSf�STORYWATER TRfJ1TYEM SYSTEMS REOUiRE RECULAR YNNTENAtYCf REFER TO QPEW►TtON ANO No 5.624.578 AIVD 01'H6R U S
IrWHTENANCE INMIUAI FOR OETAILS. AND FOREIGN PATENT3 PEND[NC
3) PRE-GIST CONCttETE VAUIT COrlSTRUCTED IN ACCOROANCE MA1N /�ST6A C858
4) ExTERNAL PtPtt�tG IWD COUPUIYCS PRGVIDEO 6Y OTMERS
5) FLEXtBLE COUPUNCS TO 8E SET 18' OUTSIOE FACE OF WALI. FERNCO OR ENC�NEER I1PPRavED
6) SEE DROP-IN FiLrER W1TA SHEET FOR VAIJLT OIYENSIONS. EIEYATlONS AND NUNBER OF GRTRIDCES
7) MRI-FIQATA110N BALUIST TO 8E SET IILONG EMIRE LENGTM OF BOTH �OES QF ft�TER /�S SNpNrN
SEE OROP-IN FlITER MTA B�OCK FOR BAttJ�ST NfiOTH ANO HpCHT O1IAENSIOtrS
M1TI-fLQATATtON BALIJ�ST
(8tt OTMERS) ALTERNATE PiPE
(81r OTHERS)
PiZE—C�ST n Q a L a t 4 a o c 1
COIVCRETE VAl1LT `s 4
A �--1 10 1 }i-�10 4 /2" 01 -T
a
9'
9'
a
9 (6r oT�tIERS)
t'-lO 1/Z h
-3
lADOER (TYP)
OUTLET P�PE
(8Y OTHERS) y a FLEXIBLE COUPLINC
OUTLET (81r OTHERS)
8 AY -r, r E
IMET 8AY 1' X S SUMP
Z
16
1 c t a c w
a
e o c L e t
a
PiPE WINIFOLp (TYP) �OW
8'x 16' CSF� DROP—IN FILTER PLAN VIEW 1
SCALE N T S
3-3x3' OWA40N0 PtATE DOORS (TYP)� TW1fFIC BEAR�NG UD (11rP)�
�j d c w
A A
SV�W�, y
pyERFLdW tJ�DOER ('111P) I FIOw SPttEAOER
ROUTES
Rnou� c�ow
ca►arn�oce (nrP)
suo� cnre
vawE (T�r�) 4 s� i
IdINIMUM j j j_ j j j N- I.E OUT 2.3' Ii1tN
0
0 4S�
e e 4 0
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iNTER�OR waLL (T1rP)
8'x 16' CSF� DROP—IN FILTER SECTION A—A A—A
SCI►I.E. N T S
STORMWATER• 1
o DROP—IN FILtER STANDARD DETAIL
�"ro+ o.n PLAN ANO SECTfON VIEW `1 M A N A O E M E N T
CSF' STORMWATER MfATA/ENT SYSTEY ar
scx� I vr�n Ka ow�c mc sasso soaaa�
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GENERAL NOTES:
1) CSF�STORYNfATER TRFJ►TMENT SYSTEAA BY STORMVYATER MANAGEhtENT. PORTlANO. OREOON (3�J—Z40-3393) tI S PATBHT No 6.�P2.OE9.
2) All CSF�STORAIWATER TREIITYENT SYSTEIAS f�OUIRE RECUWt MWNTENANCE REFER TO OPERATION AND No 8 d't�.578 AND OTRBR U.8
1AWNTENAtiCE YANUM. FOR OETAILS ANO POREIGN PATENTS PENDiN6
3) PitE—CI15T CONCRETE VAULT COt�iSTRUCTEO IN ACCOROANCE WITH AST�1 C858.
4) EXTEf�lAL PtPING ANO COUPUNGS PR01I10£0 BY OTHERS
S) F1.EX18L,E COUPUNGS TO BE SET 18' CUTSIDE FA�CE OF WI1LL. FERNCO OR ENGINEER AP?ROVEp
6 j SEE ORCP—IN FlLTER 0�►TA SHEET FOR VIWLT OtMENStONS ELFVA1tOHS ANO NUNBER OF C�1RTf�pGES
7) ANTI—FLOATATION BALL/�ST TO 8E SET ALONG ENTtRE t,EMGTN QF BOTH SlDES OF FILTER JlS StlpWN
S�E OROP—IN f1lTER OATA BIOCK FaR BAU/�ST WIOTN AND HE�GHT OINENStONS
ANTI—FlOATATION BN.J,/lST q��R�� p�p�
(e�r oTwEas) (e�r On+ERSj
e
Pi��G�ST s v v o s v o s a v v t e
CONCRETE VAtlLT 5
A c 1' 1� 1'r �10 1�'1" �1'—��} d 1'�9e 7�8 .t A
t
i r
9r f a INIET PIPE
(BY OTHERS)
a tl
L
s -�o ,/r u►�osR c�)
OUTLET PIPE a `iLEX18LE COUPUNG
(9Y OT►iERS)
F Ir�LET 8nr (Br OTHERS)
e J 1' X S' SUIMP
z �/e i
+a•
Y C y
t r d Q
4 I
a s a n s a e n Q Q t
S' r S a
PIPE AAAPIIFOLO (TYP) RAp1AL FLOW GIRTRIOCES (TYP)
8'x1 S' CSF DROP—IN FILTER PLAN VIEW 1
SCALE N T S
2-3 s3 OIAWtOND PIATE OOORS (T1P) TRAFFtC BfJ�RiNG UO (iYP)
c i r r _l +r
e .r
I 4
1 JOINT SE/1U1NT (lYP)
01�ERFLOYV
ROUTES j SPREADER (iYP�
4 S a RI1DtAL FIOW
MINIMUM a
SUQ£ GATE
VALVE (T�P)
i 1•—g' E�N 1 E OUT 2 3 t�iN
r
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e a
t e e
PIPE WWIfOLO (1YP) ENER� 01SSIPATER (SYP)
INTERtpR WALL ('1YP)
8'x 18' CSf DROP—IN FILTER SECTION A—A A—A
SG1LE N T S
ots+rxa .r rar o�xaa rr o[a oon
a..�, p� R OROP—IN FILTER STANDARO DETA/t
PLIN AND SECTION VIEW M�R��A��R
CSF'STORMWATER TREAT�IfNT S1'STE1/
w�u. I v+�►ac� ko I oiuw��c raF wW�. ��o�a�o�` aw� oq a�a
•s srow r�� erees.o�c
CSJ�Stormiraler Treatment Syslem
U S PATBNT No 5.9�2.829.
1 GROUT (TYP) VAULT WALL No 5.821.s78 AND OTHER v.S
SEE NOTE 2 ANO FORBIGN PATENTS PBNDINC
KEY MIN
GENERAL NOTES:
4
1) INTERIOR WALLS SFIALL 8E 3.000 PSI
CONCRETE MINIUAIlM REINFORCE WITH �4
r
REBARS 17' 0 C 8 W
TOP VIEw ���R sw�u sE� a.� .rauvrs, eon+
s�oES, w�rHHON-s,��nc caau�
3) FOR LEVEL F100R SET H• 20r FOR 80TIi
UPSTREAM AND OOWNSTREA�I WALIS FOR
SLOPINC FLOORS SET UPSTRfJU►1 WALL TO
PRECAST INTERIOR WALL H e 2d' ANO IAAICE DOWNSTREMA WALL TAt.LER
SEE NOTE 1 TO IrWTCH THE EI.EVA'RON OF UPSTRF1Wt WAIL.
EMBEOOED FRAME
(CAST INTO WALL)
yA
14
o
o o o GROUT
GROUT
H SEE NOTE 3
�1
i O o a �i o i r
s r r
L- A
FRONT VIEW SECTION A-A
INTERIOR WALL (TYP)
SCAIE N T S
1" GROUT (lYP)
SEE NOTE 2 VAULT WALL
1" KEY MIN
r
i 4
i
3
TOP VIEW
PRECAST INTERIOR WALL
SEE NOTE 1 �r
HOLE FOR 10" PIPE
r 8
GROUT --�7
H SEE GROUT
NOTE 3
O O
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FRONT VIEW SECTION 8-8
DOWNSTREAM INTERIOR WALL FOR
UPSTREAM VAULT IN SERIES 2
SCALE N T 5
��c�am en ato� w� o�au our,
d INTER/OR WALL STANOAI�O OETAlL
PLAN ANO SECTfON NEW 8'�'4RMWATER
MANA6EMENT
1 CSF'' STORMWAT�R TItfATY£NT SYSTEY �rra oauB� ain o� aso
I a�c� No I oa,�.�+c cnr w,�t ana�sio-mao fwaia�ae�
as s� �s �RmoRmc
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J 1
GENERAL NOTES: w
1) CS'f�ST�7A?ER Tt�ATYtENT SYSTEM B�t STOitYNrATER IAArU1f�M1E1R. P�t?MN0. aREGON (503-2�0-3383)
Z, ���„n�,�o 3
W
s� w�-c� vo�c� w�n.T a�s�cra� w�co� w� �rn c�ss. c�
ocror� a�c cou�cs Paov�v e,r on+d�s.
s) Fuaae� oouwmcs To eE sEr �er ou�s+c� af +x� �o ae ��waa�ov�o t a�d
s� �-u+ Fuha aT� v�u aav��aas �rro �a af c�r�s
7) AM1-f�0�►TATt�I BALIAST TO 8E SET KOrtG EH11i� LENC�1� OF 60tl1 S1�5 OF F41FR AS SfiO�MN. Q
SEE OROP-M i11TER �IITA BLrOf�i f1�t 8�1Li/lST WID111 11f� l�fT
Mfil-f1rOd1TATlON BA.I/�s�"T
(81r 011iF.RS}
a o� o c 9 a b o o C 9 e a
r C Q
n o I o R
t•--a w t r i �o t� �•-�r--I—ta-tr ,�o t to i A
o
OONCRE7E WWLT 1 l o 1�
9 6 Q y �o
A �E C� Z y�j a
INLET PIPE y W� eo
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1'-10 1/r t'-10 1/? O 1
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8'x 14'/8'X 14' CSF� OROP—IN FILTERS SECTION A—A A—A
SCALE NT.S
S
C�Slonms�Icr !}�e�tment S�slem
d.e PAlB1VT Na S.32II.0�.
Ma 6.02�.5�4 AND OTNBR U.S.
AND iOR&GN PA'1'�JTS PBN0INC
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GENERAI NOTES:
1) CSi�STORYM/ATER TREAT1tEM 51f5iEY 6tt STORYMtATQt YAt�NT. P�OR1tAMA, �1 (9�03-Z�0-3393�. �41{�
i Z.) ALL CSi°STpAMNtATER TREAIYElIT S1rSTE,1tS R�RE i�C1AAR YAtN1ENAMCE. t�fER T� OPERATiON AND
INIfIr1EM%lCE YMIt�AL iOR OETAAS.
3) PRE-CAST OO�iE YAtAT CO�iRUC�m o� �ANCE w1iM /ISTY C8S9.
i 4) EXTF�fAl. PIPIkG AND COUPLWGS PRONiD£0 8tt O1ftER5.
S.) il�.E 10 8� SET t� OURIDE iACE Oi WALI. FEiWCO OR I1P�D. Q
os�-w Fn� a►�,► s� v�n� a�s, a�w� rwo �aure�+ cz c�ar�ac�s Z�
o o Ta Ton �,oac� e��us� ��►�+r� f a� as a
Mm-Ftor►rA� ew.�nsr
(er o�s) 1
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P�� C e a 4 Y r
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e 1'e�-, 10 1 r 0 1 �+1'-� 1'� 10 1 �10 1 /1r 1'L
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S�ALE N T S
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n�c e�c uo (n�)
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L
8'x 14'/8'X 16' CSF DROP–IN FILTERS SECTION VIEW A–A
SCALE N T 5
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GENERAL NOTES:
1) C�STOWIMAIER iRfA11�EM SYSZEY 8Y Sf�R11wA�ER IAAMAtt�EM. PO�iTW�. �GON (503-2�0—J393)
2a AlL C5F 1REAIUE�R 51�5?FMS REO� �tJLAR NAtNTFJ�lA1�E. t�FER TO OPQtA1t�q At�D
Ii11AMTElIAI�ICE IUIN�IAI OETIIOS.
A
Z.) PI�E�CJ16T O�E VA�AT 9�1 A00� MI1M kSTY W
4) Ex�Q�W1L PMC+� IWD OOtA�u1�GS PROv�QEO 8tt 01MERS. �s O
SJ FL�7�£ OOUPL9iG5 TO 8E �T 1� 01115�E fRCE ��fAiL i'E1�00 OR B
8.� SEE OilO�-Oi f11.TEA MTA i'C�t VMAT EIEYA�iS AtfD tilpt8ER Oi GIR'IR�t�S.
7) IIMI-FtDATATt0�1 8N1/IST� TO 8E SET A1�G ENTt� LF�IC111 Of 807H SmES F4TER AS S1lO�N.
�E OROP-M F'LLTER QATA BLOCK iQR 6ALL/�ST WID1H AND N£3pfT �NS.
AN11-ftAI1TAt10N BI1LiAS7
ti• r .I
I f
�r r t r e� r i 'r v s
�ER YWIT
TO 1 1 1 C s O 1 •9 7
r- f A
r nuFT eAr
A
0
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t•-�o �/Y' t�o� t�I r-to t/r' L y
Z
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1�, t/�
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Z
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a) SE�E �tOP-M i1LTEit OI1G SItEET inR VAtiLT 0�, ELFYATq�iS AND I�ilJ1i�R OP CJ1Rif�OCES.
arn-�aT� ewnsT ro eF s�r �,c ��cn+ a� eon+ s�s or Fa�x �s
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s�em
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SCALE: N T S 1 Ba.blo�.
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SCALF N.T.S 1
z�-� NOTES:
CSF` UNEEtR FILTER TO 8E SUPPUEO 81f ALL CSF'STORMWATER TREATI�AAEl�R SYSTEMS C SF� LI N EAR FI LTER DATA
STORMWATER MANAGEMENT ((503) 240-3393) REpUIRE REGUTAR MAtNTENANCE. FiEFER TO
2) SOUD TOP CATCH �ASIN OR I�ANHOLE TO 8E QPERAT�ON AND AIAINTENANCE YANUAI FOR �EfIUIS OESIGN WATER OUAUTY FLOW (cfs) r
f t INSTALLEO AND CONSTRUCTED lN ACCORaANCE 8) PRE-CAST CONCRETE VAULT CONSTRUCTED IN p�K FLOW (cf9) I'"
wITH LOCAL REGULATIONS ANO PLUM8ING COOE ACCORQANCE wITH ASTI�I C858
g e Q 3) CO�PACT �►S SPECiFlED 9) ExTERtv�►L PtPtNG aND COUPUNGS PROv�OED 8ir �0 i N n
4� 4) I E OuT OF OUTLEf CATCH BASIN TO BE EOl1AL �THERS
TO OR LE55 'fHAN CATCH BAStN 4" INLET 10 SEE LINEIIR FiLTER QATA SHEET FOR VAULT C�� �RMM►ATER SYSTEM SlZE N x
t SEE NOTE 3 5) OUTLET OF CATCH BASIN GIV ABUT THE CSF• OR OIMENSIONS. EIFNAT10NS ANO NUAABER Of RIM EI.EVATION gheet Humeer r
8E PlACEO DOWNSTREAM wiTH SLOPED PIPES (S. CARTRIOCES I�� I�►�� I ��METER
CSF UNEAR FILTER SECTION B-B B-B 6) PRWIDE FLEXt81E COUPLINGS IYPICAL ALL PIPES 11 PRE-TREATMENT STRifCTURE SHOULD HAVE INLET PIPE I�?� I I °n O�
COUPLING TO 8E SET 18 OUTSIOE FA�E OF A OOWMURNED 90r ELBOW ON THE OUTLET p�,ET PIPE PVC 4�
SCAIE N T S WALL. FERNCO OR ENCINEER APPROVEO P1PE p�yERFLOW PiPE ��'f3 J'�? 997
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r
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3'-3' Na 8.82l.670 AND OTHBEt O.S
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ro �–tr�►T�� 8 a �r �u
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4' x a' PvC �(rn�) W
CSF� LINEAR FILTER PLAN VIEW CATCH BASIN PLAN VIEW L
J
SCALE• N.T S SCALE: N.T S 1
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SCALE NTS 1
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SCALE N T S 1
Z._3 ��r NOTES:
CSF' UNfAR FILTER TO BE SUPPUED 8Y ALL CSF'STORMWA�ER TRFATMENT SY°STEMS CSF LINEAR FILTER DATA
STORMWATER Ml�£�1ENT ((SQ3) 240-3393} RECUIRE REGULAtt A1AlNTENAl�CE REFER TO
2) SOUO TOP CATCH 8AS1N OR MlWHO1.E TO BE �D I�AnINTEN�wCE 1�nl�UAL FOR DETa�S pES�GPI WATER pUALI'TY FLOW (c!s) I
INSTALlFO AND CONSTRUC'fE0 IN A�CQROANCE 8) PRE—G�ST CO�ICRETE VAUIT CONSTRUCTEO IN p� �pyy
Q WITH LOCAL REGUtAnONS �uvD PW�18lNG CODE ACCORQANCE WITH ASTM C858
1 a Q 3) COt�lPACT aS SPECIFIED RETURN PERt00 OF P�A1c FL4w
9) fXTERNA�L PIPINC AND COUPIJNGS PR01/�OED 8Y �qp� �pyy �TRi0G�5
4• a 4) I E. OUT OF OUi'LET CATCN BI�SIN TO 8E EQUAL OTHERS.
TO OR LESS THAN CATCH BASIOV 4" INLET 10 )�E UNfAR FlLTER OATA SHEET FOR VAULT CSF"" STORMWATER SYSTEM 5lZE x 3
r n SEE NOTE 3 5) Ot1�LET OF CATCH BASIN CAN A9UT THE CSF OR QIMENSIONS. ELEVATIONS AND NUMBER OF RiM ELE\/ATION I
8E RlACEO DOWI�STREAM WITH SlOPED PIPES (5. CARTRIOG£5 I I.E. I MATERlAL I DIAl�IETER 0•t
6) PR01fi0E FLEXf6t.E COUPUNCS TYPiCJ�I ALL PIPES t t) PitE-TREATNtENT STRUCTURE SHOULO HAVE INLET PtPE I?" I 'Y? I O F
CSF LINEAR FILTER SECTION 8-8 8-8 couPUNc To eE s� oursioE FacF oF A D�MfPiTURNEO 90r ELBOW ON THE OUTLET oun� a�� I"3 I� I a'
S SCAl.E N.T S WALL. fERNCO OR ENG�NEfR APPROVED PIPE Y E R f O W P I F� I� I'�' I_
1 f87
r
3'-r G�1�Storm+►aler 9�eafinent System
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CSF' 6 CARTRIOGE UNEAR FILTER PLAN VlE1N
SCALE: N.T S 1
W
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To ou�n� cAtcH a�s�N J
(s� noorE 2)
Y
s"'z� 6' A/C 9C E16�1N C�NSEA� T
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SCALE N.T.S 1 Z
2'-3 1/7'
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SCALE N T S 1 SCALE N T S 1
NOTES:
1 j CSf` LINEAR itLTER TO 8E SUPPUEO 8Y 7) ALL CSF TREATMENT SYSTEIAS
d STORNtWATER MANAG£MEMT ((503) 240-3393) �4UIRE REGUTAR I�eAttdTEwWCE a� To CSF LINEAR FILTER DATA
2) SOUD TOP CATCH BASIN OR wwKOLE TO BE �PERATION /WO W1INTENAtSCE MIMIUAL FOR OETAILS
SEE NOTE 3 �NSTALLEO AND CONSTRUCTED IN AQCORDANCE 8) PRE-CAST CONCRETE VAULT CONSTRUCTED IN OESIGN WATER QlUd.111r FIOW �cfa) I
WITH LOCAL REGUlAT10NS AND PWM8ING CODE ACCORDANCE WITH ASTM C858 PEAK Fl.01N �cfs) I
3) COIiAPACT /�S SPECIFIEG 9) EXTERNAL F=IP�NG ANO COUPUNGS PROVtDEO BY RETURN PERi00 OF PFAK FLOW N
CSF� LINEAR FILTER SECTION 8-8 B I E. OF CATCH BASlN OUTLET TO BE EOUAL TO OR on�Eas w�nu� �ow cr�r�nc�s M�
SCALE N T S LESS THAN CATCH BASIN 4' INLET 10 SEE UNEAR FILTER OATA SHEET FOR VAULT CSF` STBRI�IWATfR SYSTEM S1ZE 3 x?
5) OUTIET OF CJITCH eASIN CAN A8llT THE CSF OR OtMENS10NS ELEVATIONS AND NUMBER OF RID�I ELEVATION
HE PLACED OOWNSTREAM WtTH SLOPE� WPES (S. CARTRiDCES d y N
6) PROVtDE FLEX18LE COUPUNGS TYPICAL Al1 PIPES 11 PRE-TR�'ATI,AENT STRUCTURE SHOULO HAVE
INLET PIPE
WALL OR fNCINE AP� ROVEO P��wNTURNED 90r EL80W ON THE OU?1.ET 0�� RtPE PVC 4' O F
2) s� csf• uN� a G�RiOGE DE7a� FOR O�ERFLOW a��F ��ra I?�
ouT� c e o�w�. 1897
CoNsEx 3�-�' G�''Siormsater 7heatme�l System
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C�_,,, �e AND FORBICN PATSNTS P�NDINC
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W
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SCALE• N T.S 1 SCALE• T S 1
a NOTES:
1) CSF• UNEAR FiL1ER TO BE SUPPUEp 8Y 7) ALL CSi�STORiiAWATER TREATMENT 5Y5TEhiS
4. Y STORMWAT`ER t�l1WACEi MENT (($03� 2�0 -3393) R�O�JIRf REGUTAR WUNTENAtYCE. To CSf LINEAR FILTER DATA
2) SOUD tOP CATCH 8A5IN QR I�AANFlOLE TO BE CPERATiON MID MNNTEPlA�tC£ I�AANUAL FOR OETAILS
T,= t INSTAllEO ANO CONSTRUCTED IN Al�CORaANCE 8) PRE—CAST CONCRETE VAULT CANSTRUCTEO IN DESIGM WATER QilAL11Y FIOW (cf9) I
t SEE NOTE 3 WITH LOCAL REGUlAT10sVS AND PIUAAB(NC CODE AC�ARQANCE W�TFI /1STY CgSg PEAK FLOW (cfs) I
3) CO�PACT AS SPEC�EO 9) E7cTERNAI PtPING AN� COUPUNGS PROVIDED BY REiur� PER�OD OF Pf1+K fLOW
CSF UNEAR FILTER SECTION 8-8 8-8 4) 1 E. OF CATt�I BASIN OUTLET TO 8E EOUAL TO OR OTHERS w�ow. �ow c,�nt�s �?�2
SCALE N T S IESS THAN CATCH BASIN 4� INLET 10 SEE LINEAR FILTER �ATA SHEET FOR VAUIT CS'�' STORMWATER SYSTEM SIZE x�
5) OUTLET Of CATCH 8ASlN CAN ABUT THE CSF� OR o��rE�aNS ELEVATIONS AND NUMBER OF R�I� ELEyAT1pN I
BE Pi,ACEO DOWNSTREAAA WRH SLOPEO PIPES (S. CARTRIOGES
I.E I�ATERUIL I OIA�eETER �est �Jumber
6) PROi/IDE FlEX18LE COUPUNGS lYPiCAL ALL PIPES 11 PRE—TREATMENT STRUCTURE SHOULO HAVE INLET PIPE 1� I I O F
COUPLU�G TO BE SET tg' OUTSIDE FACE OF A�WNTURNEO 9Q ELBOW ON THE OUTIET
WALL FERNCO OR ENCINEER APPRaV�p RIpE, OUTIET PiP� I� I I 4'
12 ��E CSF' UNEJ�R 4 CARTRIQGE OETAtL FOR P�� 3
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SCAIE N T.5 1 SCALE N.T S 1
a=��—
2 l NOTES:
cs� uN� To e� s�,��o 8� Al.l CSF'STORMWATER TREATMENT SY'STE�iS C S F� LI N E A R F I LT E R DATA
STOiiMWATER MANA�Cf�tENT ((503) 24G-33S3) REOUtRE REGULAR UWNTENANCE REfER TO
2) SOUO TOP CATCH BASIN OR MANHOLE TO 8E a'ERATION AND I�IAIN?ENANCE QAIWUAL fOR OETAILS DESIGN WATER OUAUT1f F'lOW �cts) I
(NSTALIED AND CONSTRUCTEO IN /ICOORO/WCE 8� PRE-CAST CONCRETE VAULT CONSTRUCTED IN PEAK iLOW C�9� I
WITH LOCAL REGULATIONS AND PLUUABtNG COOE AQCORQMICE W11H /�ST1,1 C858 RETURN PERIOa Of PfAK F'I.OW M
3) CW�IPACT AS SPECIFIED 9) EXTERNAL PIPtNC AN� COUPUNCS PROM1IIOED 8Y RADIAL fLOW CARTRIaGES
4 Q 1 E. OF CATCH BAStN OUTLET TO 8E EOUAL TO OR OTHERS CSF` STORMwATER SYSTEt�i SIZE x 3
LESS THAN CAYCH BASIN 4� iNLET 10 SEE LINEAR FILTER QATA SHEET FOR VAULT
RIAA ELEVATiON I ?3�
t SEE NOTE 3 S) OUTI.ET OF CATCH BASIN CAN ABUT THE CSF' OR OINENSsONS. ELEVATIONS ANO NUMBER OF N E ��1ATERWI DIA�AETER
8E PU4CE0 QOWNSTREAM WITH SLOPED �PES (S. CaRTRIDG�S INLET PIPE S�eet Number
6) PROiV10E FLEX181.E COUPLINCS TYPICAL ALL PIPES 11 RRE—TREATMENT STRUCTURE SHOULD HAVE p��T P�PE N?� PVC 4•
CSF LINEAR F'ILTER SECTION 8 8 8 �µ��,p� OR ENGINEER OF �PQpyyNTURNEp gpr E�gpW ON THE OUTLET py�FLOW PtPE I"' I"' I"'
SCA�E N T.S 1
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r
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NOTES:
2''3 '�r CSF' UNE/IR FILTER TO BE �JFPUED 8Y Au cs�s�o�wA� sYsr�s CS F� LI N EAR FI LTER DATA
STORMWATER MAI�fA�ENENT ((503) 240-3393) REGUIRE REaJIA�t IrWNTENANOE. REfER TO
2) SOUD TOP CATCH BASIN OR NWNHOLE TO 8£ OPER!►T10N /UID MNNfTENANCE AAIWUAL FOR DETAILS P� �w u�TM ��a�
INSTALLEO AND COt�iSTRUCTEO IN ACCORO�WCE 8) PRE-CAST CONCltETE VAULT CONSTRUCTED IN
a WRM LOCAL REGUTATIQNS ANO PLUMBING C00£ ACCORDANCE WITH /�STM C858 RETURN PEREOD OF PFA�c FLOW N
a 3) CO#APA�T AS SPECIFlED 9) EXTERNAI PIPINC AND COUPUNGS Rit�VID£D BY RADWL FIOW CARTttIDCES I ?t?
4 4) I E OF CATCH 8AS(N OUTI£T TO BE EOUAL TO OR CTHERS CSF" STORMwATER StrSTE�[ S�ZE N� x�
r LESS THAN CATCH BASIN 4" INLET 1 p) SEE UNfAR Fl�TER QATA SHEET FOR VAU�T RIM EIEVATION I
=r 5) OUTLET OF CATCN BASIN CAN ABUT THE CSi'' OR 0(MENSEONS. EI.EVATIONS IWO NUMBER OF
SEE PWTE 3 1 E. 11ATERIAL QIAMETER
eF awcFO a�� wm� s�o�o ��s (s. caarR�uc�s Pi a sa� cv�e�
6) PROVIDE F'I.EXIBIE COUPIINGS TYPiCA1 ALL PfPES 11 PRE-TREATMENT STRUCTURE SHWJLO HAVE p�p� I��' I I 4�
CSF� LINEAR fILTER SECTION 8-8 8-B coupuKc ro eE s�r »r oursroE Fac� oF A ppW��EO 90� ELBOW ON THE OUTLET
WAII. FERNCO aR ENGINEER APPROVEO RiPE 01iERFLOW PiRE I I Q F
SCALE N T S 1 12 SEE CSF UNEAR 4 CARTRIDGE OETAtL FOR
OUTLET C 8 OETAlL 897
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GENERAL NOTES: �i
O
t) CSF STORMWATER TREATMENT SYSTEM 8Y STORMWATER MANAGEMENT.
PORTLANO. OREGON (503-240-3393)
2) ALL CSF STORMWATER TREATMENT SYSTEMS REQUIRE REGULAR
MAINTENANCE. REFER TO OPERATION AND MAINTENANCE MANUAL
FOR DETAILS
3) EXTERNAL PiPING ANO COUPUNGS PROVI�ED 8Y OTHERS
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CSF�OPEN FILTER SECTION 8-8 8
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C.SI�'''Stormwater Treatment System a
U S �PATENT No 5.322�629.
No 5.624.576 AND OTHER U S
AND FOREIGN PATENTS PENDING W� N
x
CSF� STORMWATER TREATMENT SYSTEM
General Specifications
DROP-IN FILTER UNIT
PART1 GENERAL
1 1 SECTION INCLUDES
A Drop-In Filter CSF� Stormwater Treatment System
1 2 RELATED SECTIONS
A Section
13 SUBMITTALS
A Stormwater Management or authonzed vauit supplier to subm�t
shop drawing to Contractor for Engineer's approval
B Stormwater Management to submit Operation and Maintenance
Manual to Contractor
PART 2 PRODUCTS
2 1 FLOW KIT COMPONENTS
A All flow kit components are provided by Stormwater Management,
2035 NE Columbia Bivd Portland, OR 97211, 503-240-3393.
B Filter Media
1 Filter media shall be made exclusively of fallen deciduous
leaves with less than 5% by dry weight of woody or green
yard debris matenals
2 Filter media shall be granular and shall contain less than
0 5% foreign material such as glass or plastic contaminants
Media shall be dry at the time of installation with a moisture
content (wet weight basis) no greate� 10%.
3. Maximum level of dust for fiiter media shall be defined as•
media passing through a U S Standard Sieve #4 shall have
no more than 10% (by mass of dry media) passing a U S.
Standard Sieve #45
4 Filter media shall be by Stormwater Management
C� STORMWATER MANAGEMENT 12/10/97
C Radial Flow Cartridge
1 Cartridges shail be constructed from linear low density
polyethylene bottom, top, and inner ring Outer screen shall
consist of '/z"x%z" or '/Z"x1" galvanized welded wire (16 gage
minimum) bonded to PVC. Screen fasteners to be
aluminum or stainless steel Internal fittings shall consist of
ABS fittings, PVC inne� core w�th a siphon device consisting
of a polystyrene float, polypropylene bali valve, with
stainless steel connectors Outer filter fabnc shall be
fiberglass 10x8 5 clear mesh. Inner filter fabric shail be
woven polyethylene with a 20 US Sieve opening size All
miscellaneous screws, nuts, and fasteners to be stainless
steel or engineer approved All water tight fittings to be
sealed with Sealant in conformance with FDA Regulat�on
21 CFR 175 000
2 Cartridges shall have CSF�' filter media instailed (see
spec�fication above)
D Weirs Shall be constructed of PVC by Stormwater Management
E PVC Piping (inside filter) All intemal PVC piping and fittings shall
meet ASTM D 1785
F Flow Spreader Shall be constructed of fiberglass or spun LDPE
G Slide Gate Vaive Shall be constructed of PVC with stainless steel
shaft and aluminum handle
2 2 PRE-CAST CONCRETE VAULT COMPONENTS
A Precast Concrete Vault Shall be provided accord�ng to ASTM
C858-83
B Vault Joint Sealant Shall be Conseal CS-101 or Engineer
approved
C Doors Shall have hot dipped galvan�zed covers w�th recessed i�ft
handle and a locking latch with 3I8" pentahead bolts Pentahead
key to be provided for filter doors
D Ladder Boit-on ladder shall have a hot dipped gaivanized finish.
Pull up ladder extender shall extend a minimum of 24 inches above
the top rung of ladder
STORA�IWATER MANAGEMENT 12/10/97
2 3 COIVTRACTOR PROVIDED COMPONENTS
A Concrete (for concrete not covered by p�e-cast specification
above) Shall be 3000 psi, 28 day strength, 3/4 inch round rock, 4
inch slump maximum, placed within 90 mmutes of initial mixing
B Silicone Sealant Shall be pure RTV silicone conforming to Federal
Specification Number TT S001543A or TT S00230C or Engineer
approved
C Grout Shall be non-shrink grout meeting the requirements of
Corps of Engineers CRD-0588 Specimens molded, cured and
tested in accordance w�th ASTM C-109 shall have minimum
compressive strength of 6,200 psi Grout shall not exhibit visible
bleeding
D Sub-Base Shall be six (6) �nch m�n�rnum of 314 inch minus rock,
95% compaction Compact undisturbed sub-grade matenals to
95% of maximum dens�ty at 2% of optimum moisture
Unsuitable materiai below sub-grade shall be replaced to s�te
engineer's approval
E Back�ll. Shail be 3/4 inch m�nus rock (95% compaction), or as
othenivise specified in the proJects general technical specifications
PART 3 EXECUTION
3 1 PRECAST CONCRETE VAULT
A Vault floor shall slope 1/4 inch (max across the width and slope
downstream 1 inch per 12 foot of length Vault top finish grade
shali be even with surrounding finish grade surface unless
otherwise noted on plans
B Contractor to grout ail inlet and outlet pipes flush with vault interior
wall Contractor to grout intenor wails
C Sanded PVC fittings shall be used on all PVC inlet and outlet pipes
3 2 RADIAL FLOW CARTRIDGE
A Ca�tridges shall not be installed until the pro�ect site is clean and
stabil�zed The pro�ect site includes any surface that contnbutes
storm drainage to the CSF� filter All impermeable surfaces shall
be clean and free of dirt and debns. All catch basins, manholes
STORMWATER MANAGEMENT 12/l0/97
and pipes shall be free of dirt and sediments.
B Contractor must notify Stomnwater Management (503-240-3393)
two (2) weeks before cartridge instaliat�on A Stormwater
Management representabve will deliver and offload cartndges
complete with filter media and plugs as shown by plans
3 3 WEIRS At pro�ect compietion, weirs shall be level and sealed at all �oints
with silicone sealant Sealant shail be worked into �oint from both sides
3 4 CLEANUP Remove all excess materials, rocks, roots, or foreign material,
leaving the site in a clean, compiete condition approved by the Enginee�
All PVC and fiberglass filter components shall be free of any foreign
materials including concrete and excess sealant
3 5 PVC PIPING Shall be �oined in accordance with ASTM D2564
END OF SECTION
Revised 12/10/97
C� STORMWATER MANAGEMENT 12/10/97
CSF� STORMWATER TREATMENT SYSTEM
General Specifications
LINEAR FILTER UNIT
PART 1 GENERAL
1 1 SECTION INCLUDES
A. Linear Filter CSF� Stormwater Treatment System
1 2 RELATED SECTIONS
A Section
13 SUBMITTALS
A Stormwater Management to submit shop drawing to Contractor for
Engineer's approval
B Stormwater Management to submit Operation and Maintenance
Manual to Contractor
PART 2 PRODUCTS
2 1 FLOW KIT COMPONENTS
A All flow kit components are prov�ded by Stormwater Management,
2035 NE Columbia Blvd Portland, �R 97211, 503-240-3393
B Filter Media
1 Filter media shall be made exclusively of fallen deciduous
leaves with less than 5% by dry weight of woody or green
yard debris materials
2 Fiiter media shall be granular and shall contain less than
0.5% foreign material such as glass o� piastic contaminants
Media shall be dry at the time of installation w�th a moisture
content (wet weight basis) no greater 10%.
3 Maximum level of dust for filter media shail be defined as
media passing through a U.S Standard Sieve #4 shall have
no more than 10% (by mass of dry media) passing a U.S
Standard Sieve #45.
4 Filter media shall be by Stormwater Management
STORMWATER MANAGEMENT 12/10/97
C Radial Flow Cartridge
1 Cartridges shall be constructed f�om linear low density
polyethylene bottom, top, and inner ring. Outer screen shall
cons�st of '/2"x'/z" or %z"x1" gaivanized welded wire (16 gage
minimum) bonded to PVC Screen fasteners to be
aluminum or stainless steel. Intemal fittings shall consist of
ABS fitt�ngs, PVC inner core with a siphon device consisting
of a polystyrene float, polyp�opylene ball valve, with
stainless steel connectors Outer filter fabric shail be
fibergiass 10x8 5 clear mesh Inner filter fabric shall be
woven polyethylene with a 20 US Sieve opening size. All
miscellaneous screws, nuts, and fasteners to be stainless
steel or engineer approved All water tight fittings to be
sealed with Sealant in conformance with FDA Regulation
21 CFR 175 000
2 Cartridges shall have CSF�" fiiter media installed (see
specificat�on above)
D PVC Piping (inside filter) All internal PVC piping and fittings shall
meet ASTM D1785
E Slide Gate Valve Shall be constructed of PVC with stainless steel
shaft and aluminum handle
F Gutters Shall be constructed of PVC Vinyl, white, with a minimum
side wall thickness of 1.9 mm Brackets shall be able to withstand
a minimum load of 50 pounds per bracket
2 2 PRE-CAST CONCRETE VAULT COMPONENTS
A Precast Concrete Vault Shall be provided according to ASTM
C858-83
B Vault Joint Sealant Shall be Conseal CS-101 or Engineer
approved
C. Grating: Shail be in accordance with State DOT specifications for
H-20 Traffic Loading
2 3 CONTRACTOR PROVIDED COMPONENTS
A Concrete (for concrete not covered by pre-cast specification
above) Shall be 3000 psi, 28 day strength, 3/4 inch round rock, 4
STORMWATER MANAGEMENT 12/10/97
inch slump maximum, piaced withm 90 minutes of initial mixing
B Silicone Sealant• Shall be pure RTV silicone conforming to Federal
Specification Number TT S001543A or TT S00230C or Engineer
approved.
C Grout: Shall be non-shnnk grout meeting the requirements of
Corps of Engineers CRD-0588 Specimens molded, cured and
tested in accordance with ASTM C-109 shall have minimum
compressive strength of 6,200 psi Grout shall not exhibit visible
bleeding
D Sub-Base Shall be six (6) inch minimum of 3/4 inch minus rock,
95% compaction Compact undisturbed sub-grade matenals to
95% of maximum dens�ty at 2% of optimum moisture
Unsuitable material below sub-grade shail be replaced to site
engineer's approval
E Backfill Shall be 3/4 inch minus rock (95% compaction), or as
othenNise specified in the pro�ects generat technical specifications
PART 3 EXECUTION
3 1 PRECAST CONCRETE VAULT
A Vault floor shall slope 1/4 inch (max across the width and slope
downstream 1 inch per 12 foot of length Vault top finish grade
shali be even with surrounding finish grade surface unless
othervvise noted on plans
B Contractor to grout all inlet and outlet pipes flush with vault interior
wall Contractor to grout interior walis
C Sanded PVC fittings shall be used on all PVC inlet and outlet pipes
3 2 RADIAL FLOW CARTRIDGE
A Cartridges shali not be installed until the pro�ect site is clean and
stab�lized The pro�ect site includes any surface that contributes
storm drainage to the CSF� filter. All impermeable sutfaces shall
be clean and free of dirt and debris. All catch basins, manholes
and pipes shall be free of dirt and sediments.
B Contractor must notify StoRnwater Management (503-240-3393)
two (2) weeks before cartndge installation A Stomnwater
Management personnel will deliver and offload cartridges complete
S'TORMWATER MANAGEMENT 12/10/9?
with fiiter media and plugs as shown by plans
3 3 WEIRS• At pro�ect complet�on, weirs shall be level and sealed at all �oints
with silicone sealant Sealant shall be worked into Joint ftom both sides.
3 4 CLEANUP Remove ali excess materials, rocks, roots, or foreign mater�al,
leaving the site in a clean, complete condition approved by the Engineer.
All PVC and fiberglass filter components shall be free of any foreign
materials including concrete and excess sealant.
3 5 PVC PIPING Shall be �oined in accordance with ASTM D2564
END OF SECTION
Revised 12/10/97
C� STORMWATER MANAGEMENT 12/10/97
CSF� STORMWATER TREATMENT SYSTEM
General Specifications
OPEN FILTER UNIT
PART1 GENERAL
1 1 SECTION INCLUDES
A Open Filter CSF� Stormwater Treatment System.
1 2 RELATED SECTIONS
A Section
13 SUBMITTALS
A Stormwater Management to submit shop drawing to Contractor for
Engineer's approval
B Stormwater Management to submit Ope�ation and Maintenance
Manual to Contractor
C Contractor to submit to Engineer for approval concrete mix
design, certificates of compliance for cement and water quality test
resuits
2 1 FLOW KIT COMPONENTS
A All flow kit components are provided by Stormwater Management,
2035 NE Columbia Bivd Portland, OR 97211, 503-240-3393.
B Filter Media
1 Filter media shall be made exclusively of fallen deciduous
leaves with less than 5% by dry weight of woody or green
yard debris materiais
2 Filter media shall be granular and shall contain less than
0 5% foreign matenal such as glass or plastic contaminants
Media shall be dry at the time of installation with a moisture
content (wet weight bas�s) no greater 10%
3 Max�mum level of dust for filter media shall be defined as
media passing through a U.S. Standard Sieve #4 shall have
no more than 10% (by mass of dry med�a) passing a U S.
Standard Sieve #45
@i STORMWATER MANAGEMENT �/�/97
4 Filter media shall be by Stormwater Management
C Radial Flow Cartndge
1 Cartndges shall be constructed from linear low density
polyethylene bottom, top, and inner ring. Outer screen shall
consist of '/"x%2" or '/Z'x1" galvanized welded wire (16 gage
minimum) bonded to PVC Screen fasteners to be
aluminum or stainless steel Intemal fittings shall consist of
ABS fittings, PVC inner core with a siphon device consisting
of a polystyrene float, polypropylene ball valve, with
stainless steel connecto�s Outer filter fabric shall be
fiberglass 10x8 5 clear mesh Inner filte� fabric shall be
woven polyethylene with a 20 US Sieve opening size All
miscellaneous screws, nuts, and fasteners to be stainless
steel or engineer approved All water tight fittings to be
sealed with Sealant in conformance with FDA Regulation
21 CFR 175 000
2 Cartridges shall have CSF� filter media installed (see
specification above)
D Flow Spreader Shall be constructed of LDPE by Stormwater
Management
E PVC Piping (inside filter) All internal PVC piping and fittings shall
meet ASTM D 1785
F Slide Gate Valve Shall be constructed of PVC with stainless steel
shaft and aluminum handle
G Flow Spreader Frame Shall be made of PVC or reinforced
fiberglass by Stormwater Management
H Hardware Shall be stainless steel
2 3 CONTRACTOR PROVIDED COMPONENTS
A Drain Pipe shall be AASHTO M252 type S HDPE slotted
(perforated). All pipe �oints shall be made according to
manufacturers specifications
B Silicone Joint Sealant
Silicone sealant shall be pure RTV sdicone conforming to Federal
STORMWATER MANAGEMENT 7/1/97
Specification Number TT S001543A or TT S00230C or Engineer
approved
C Sub-Base
Sub-base shall be 6" mtnimum of 3/4" minus rock, 95%
compaction Compact und�sturbed sub-grade materials to 95% of
maximum density at 2% of optimum moisture Unsuitable
matenal below sub-grade shall be replaced to site engineers
approvai
D Backfill
Backfill shall be 3/4" minus rock (95% compaction), or as otherwise
specified in the pro�ect's general technical specifications
E Grating
All grating to have a hot dipped galvanized finish and shall be
constructed in conformance w�th American Nationai Standard
ANSI/NAAMM 531-93
F Grout
Cement-type grout shall be non-shrink grout meeting the
requirements of Corps of Engineers CRD-0588. Specimens
molded, cured and tested in accordance with ASTM C-109 shall
have minimum compressive strength of 6,200 psi Grout shall not
exhibit visible bleeding
G Doors
Doors Shall have hot dipped galvanized covers w�th recessed lift
handle and a locking latch with 3/8" pentahead bolts Pentahead
key to be provided for filter doors
H Ladder
Boit-on ladder shall have a hot dipped gaivanized finish. Pull up
ladder extender shall extend a mmimum of 24" above the top rung
of ladder.
I Cast-In-Place Concrete and Reinforcement
STORMWATER MANAGEMENT 7/1/97
1 Concrete shall be 3000 psi, 28 day strength, 3/4 inch
crushed rock, 4 inch slump maximum, placed within 90
minutes of initial mixing
2 Reinforcement steei to be fi0 KSI deformed, free of rust and
clean
3 Pre-Cast concrete altemat�ve is acceptable.
J 3-Sided Pre-Cast Concrete Cover
1 Pre-cast 3-sided cover to be designed in accordance with
the "Standard Specifications for Highway Bridges" adopted
by the American Association of State Highway
Transportation Officials, 1992
2 Cast-In-Piace aiternative is acceptable Contractor to
provide sealed structural drawings for �eview by Engineer
PART 3 EXECUTION
3 1 RADIAL FLOW CARTRIDGE
A Cartndges shall not be instalied until the pro�ect site is clean and
stabilized The project site includes any surface which contributes
storm drainage to the CSF� filter All impermeable surfaces shall
be clean and free of dirt and debns All catch basins, manholes
and pipes shall be free of dirt and sediments
B Contractor must notify Stormwater Management (503-240-3393)
finro (2) weeks before cartridge instaliation Stormwater
Management personnel or authorized agent will install cartridges
complete with filter media and plugs at all other locations in the
pipe manifold where a cartridge is not specified
3 2 WEIRS shall be level and sealed at all �oints with silicone sealant
Sealant shall be worked into joint from both sides
3 3 CLEANUP• Remove all excess materials, rocks, �oots, or foreign matenai,
leaving the site in a clean, complete condition approved by the Engineer.
All PVC and fiberglass filter components shall be free of any foreign
matenals includ�ng concrete and excess sealant
3 4 FLOW SPREADER FRAMES Shail be installed within 3/8 inch of plan
d�mensions and set vertically.
C� STORMWATER MANAGEMENT 7/1/97
3 5 PVC PIPING Shall be Joined in accordance with ASTM D2564
3 6 CAST-IN-PLACE CONCRETE FINISHING
A Unexposed Wall Finish Patch all rock pockets, form tie holes, and
other irregularities with mortar No further finishing w�li be required
B Ordinary Wall Finish Immediately after removal of foRns, patch or
point up all defects and cure patches to a point 6" below exposed
grade. After pointings have set sufficiently, grind or fill all form
marks and pointings to give a smooth su�face even with the flat wall
surface
C Horizontal Surfaces
1 Finish upper horizontal surfaces such as tops of walls by
placing an excess of concrete in the forms and removing or
str�king off such excess with a wooden float and forcing
coarse aggregate below mortar surface The use of mortar
topping for surfaces falling under this classification will not
be permitted
2 After concrete has been struck off, work surface thoroughly
and float with a wooden, canvas or cork float, by skilled and
experienced concrete finishers. Before this last finish has
set, broom surface lightly, parallel to the long dimension,
with a fine brush to remove surface cement film leaving a
fine-grained, smooth, but sandy texture
ENO OF SECTION
Revised 12/10/97
STORMWATER MANAGEMENT' 7/1/97
STORMWATER"
MANAGEMENT
CS� PROJECT INFORMATION SHEET #2
CSF DROP- N F LTER DATA
DESIGN WATER QUALITY FLOW (cfs) I
PEAK FLOW (cfs)
RETURN PERIOD OF PEAK FLOW (yrs)
RADiAL FLOw CARTRiDGES REQUIRED
CSF� STORMWATER SYSTEM SIZE
(In—Out)=2 3' Min I E MATERIAL OIAMETER
INLET P1PE 1 I I
INLET PIPE #2 I I
INLET PIPE #3
OUTLET PIPE
RIM ELEVATION(S)
1 4
��4 1
2 3
2 ��3
ADJUSTABLE LID YES/NO
OOOR OPENING OIRECTION (FACING
DOWNSTREAM SEE FIGURE ABOVE
EXAMPI.E '2 TO 1' OR `1 TO 2'
USE 'N/A' FOR METAL GRATE)
H-20 TRAFFIC RATED LID YES/NO
LADDER YES/NO
AIVTI—FLOATATION BALLAST WIDTH HEIGHT
(USE N/A IF NOT REQUIRED)
sroRMwarER~
MANAGiEMENT
CS� PROJECT INFORMATl�N SHEET #2
CSF DROP- N F LTERS N SER ES DATA
DESIGN WATER QUALIN FLOW (cfs)
PEAK FLOW (cfs)
RETURN PERIOD OF PEAK FLOW (yrs)
RADIAL FLOW CARTRIDGES REQUIRED
CSF STORMWATER SYSTEM SIZE
Downst�eam Filter Upstream Filter
(In—Out}=2 3' Min I E MATERIAL DIAMETER I E MATERIAL DIAMETER
INLET PIPE 1 I I I I I I
INLET PIPE �2 I I I I I I
INLET PIPE I I I I
OUTLET PIPE I I I I
RIM ELEVATION(S)
1 4 1 4
1 fl.ow 4� 1�aw 4��
2�
2 �Downstreom 3 2 Upstream�
ADJUSTABLE LID YES/NO
DOOR OPENING DIRECTION (FACING
DOWNSTREAM SEE FIGURE ABOVE
EXAMPLE '2 TO 1' OR 1 TO 2'
USE 'N/A' FOR METAL GRATE)
H-20 TRAFFIC RATED LID YES/N�
IADDER YES/NO
ANTI—FLOATATION BALIAST WIDTH HEIGHT
(USE N/A IF BALLAST NOT REQUIRED)
Upstreom F�Iter
Oownstreom Filter
M�iIV/iQFA9ElVT
r
CS� PROJECT lNFORIVIAl70N SHEET #2
CSF L NEAR F LTER DATA
DESIGN WATER QUALITY FLOW �(cfs)
PEAK �FLOW (cfs)
RETURN PERIOD OF PEAK FLOW (yrs)
RADIAL FLOW CARTRIDGES
CSF' STORMWATER SYSTEM SIZE
RIM ELEVATION
I E MATERIAL DIAMETER
INLET PIPE I I
OUTLET PIPE 4"
OVERFLOW PIPE I I I
STORMWATER"'
MANAQEMENT
CSI PROJECT INF�RMATI4N SHEET #2
F N F T
CS E L ER DATA
DESIGN WATER QUA�iTY FLOW (cfs)
PEAK FLOW (cfs)
RETURN PERIOD OF PEAK FLOW (yrs)
RADIAL FLOW CARTRIDGES
CSF� STORMWATER SYSTEM LENGTH
CSF' STORMWATER SYSTEM WIDTH
TOP OF WALL ELEVATION
FINISHED FLOOR ELEVATION
WALL HEIGHT
NUMBER OF FLOW SPREADERS
(In—Out)=2 4' Min I E MATERIAL DIAMETER
INL� PIPE I I I
INLET PIPE �2 I I I
INLET PIPE I I I
OUTLET PIPE I I