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pe-1803 shelley lake TAYr..oR ENGrN~ERING. rNc STflRAGE V(]~UME - W. 105 MIS510N A'vE CAL+CULATIflN SHEET 5L7[TE 206 U51NG 5C5'['R-55 INFORMATION SPOKANE, WA 99201 PRO]ECT- VAI.LEY RIUGE i]ATE 24-5ep~96 - TOTA7_. AREA 1.99 Rc DE5IGNED L7LM STORM EVE1+I`F FREQC7ENCY: 100 YEAR BAS1N 1]EVELC]T'ED SASIN C SOIL TYPE (2) {3} [4) TYPE ❑F Sfii]KFtACE 5 F CTI FACTDR (2 x 3) B - 80°fo IMPERVIf3L.15-RC]CK WI PDQR COVER U 90 0 STR.EETS 10352 98 1014496 RbQFS, ETC 38104 9$ 3734192 F.ANI7SCAPING DVER ROCK 38104 40 3429350 TQTAI.S 85560 375 8178048 CDMPQSITE CN 94 F" FACTCDR (IN) ? fi - "5" -PC's"I'ENTUAI. fiETEN"['I[3N 0 58 (MA}QMUIvi) ' I p'- p 2(S)- 2.48 I'F LE55 THAN QR EQUAL T[] ZER(7. - NO RUNC3FF GENERATED "Q" -RUNGFF T7EFTH. 2.01 VOLUME, "Q x AREA": 14499 C.F. - - TAVLQR ENGr►vEEwNG, nrrc STORAGE VDLU1ViE w 106 MISSIvN AVE CALCULATTUN SHEE'T SLfITE 206 []S]NG SC5 TR-55 [NFOkMATIC]N 5PQKANE, WA 99201 PROdECS VA3-LEY RIDGE IlATE 24-5ep-95 . `I"OTAI.. AREA 5.70 Ac. DESIGIdEI] I]LM _ S'1'dRM EVENT FRE[3UEtIC7° 100 YEAR BASIH IiEVEE.ClPED BA5IN D SOIL TYPE (2) (3) (4) Tl'FE OF 5[]RFACE 5 F. CN FACT{3R (2 x 3) B- 8D% IMPERVIC}[1S-RCCK WI POf3R COVER 97469 90 8772210 STREETS 99616 48 9762368 ROOFS, ETC 29000 98 2842400 LANDSCAP6NG QVER ROCK 22000 40 1980000 TC]TALS 248(}85 376 23356578 COMPOSFi"E Ct+i 94 P,* FACTCIR (IN) 2 G "5" -PQTEN'TLAL RETENTIQN. 0 62 (MAXiM[!M} P- 4 2(5). 2 48 IF LESS TI-IAN OR EQUAL T() 2ERQ, NC] Ri7NC}FF GEAEE[dATED "Q" -RUNQFF DEPTN • 1 98 in . V[JLLfME, "Q x AREA" 40909 C.F. + . , rAYLOR ENcrN~ERr►vG,1Nc STURAGE VOLllME - Va 106 MI55ICJN r1VE CALC[ILAATIUN SHEET SLIITE 206 USING 5C5 TR-55 R3FDRMATI[!N SPOICAI+IE, WA 99201 PRC?1ECT V'AL1.EY R1DGE ❑ATE 25-5ep-96 TQ'['pI, p,REA 1,42 Ac DESIuNED I7LM STOCtM EVENT FREQL3ENCY. 1o➢ IE1R BA5iN I]EV,ELUPEt] 1iASZN E 5[]IL T't PE (Z) (3) (4) TYPE OF S[1FFACE S.F. CN FACTL]R (2 x 3) S- 80% IMgERVIC]U5-itC1CK W1 POOR Ct]VEIt 49416 40 4357440 STREETS 13490 98 1322020 RO7FS, ETC , 0 98 0 LAN175CAPiNG OVER RL?CK 0 90 ' 0 , TOTALS 61906 376 5574460 COMPQSITE CN 92 P^ FAcTvR (Fv) 26 _ "5" -PC3TEMIAL RETENN~{7A1 0 90 (MAX[M4.FM] ~ I • p_ p 2(S) 2 42 IF LESS TI-iAN UR EQUAL TC1 7-ERO , I~O RI]NOFF GENERI4TED "Q" -RUNOFF 1]EPTH 1.76 in - VClLUME, "Q x AFLF.A". 9100 C.F. ~ ( ,