2008, 04-03 Septic Tank Letter*Wane
417alley
11707 E. Sprague Ave. • Suite 106 • Spokane Valley, WA 99206
(509) 921-1000 • Fax (509) 921-1008 • cityhall@spokanevalley.org
April 3, 2008
Matt Iris
JR Bonnett Engineering
803 E. 3rd Ave.
Spokane, WA 99202
Dear Mr. Iris;
The City has received your request regarding information about install a septic tank for
Martin Alderete, at 4907 N. Bolivar Rd., which is located in a flood zone B. A flood
zone B is a 500 year flood plain, with a moderate chance of flooding. The City
understands that the septic tank is necessary until sewer is available in this area.
The City's requirements for installation of the septic tank in a flood zone B are
precautions are to be taken to prevent the backflow of any liquid into the house or other
structure, by the installation of a backflow valve. Although the flood zone B is a
moderate risk, the City is requiring the tank to have a waterproof seal.
After the installation of sewer lines into the street and the home is hooked up to the
County sewer system, the tank must be decommissioned and a certificate of
decommission must be filed with the City for its records.
Please do not hesitate to let us know if you have any other questions.
Sincerely,
Kathy McClung,
Director, Community Development
City of Spokane Valley
509-688-0030
kmcclung@spokanevalley.org
CC: Address file