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Utilities Sewer Design
1026 West Broadway Ave
Public Works Bldg. 4th Floor
Spokane, WA 99260
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(509) 477-3604
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Sewer Planning and Design

The Sewer Planning and Design section accounts for Spokane County's sewer construction projects. The on going goal of the sewer program is the elimination of septic tanks above the Spokane Valley-Rathdrum Aquifer, Spokane's sole source potable water supply.

2014 Comprehensive Wastewater Management Plan

The 2014 CWMP has the overarching goal of continuing to protect the Spokane-Rathdrum Aquifer by guiding Spokane County's implementation of its wastewater management program, while satisfying regulations established by the Washington State Departments of Health (DOH) and Ecology (Ecology), the Spokane Regional Health District, and other regulators.The CWMP outlines sewer program implementation steps necessary to fulfill the County's requirements per the Growth Management Act (GMA).

Bid Tabs

Miscellaneous Information

Sewer Maps

Notice: These maps are not legal documents. Data depicted on these maps is general and schematic in nature. Please contact the Division of Utilities if you need specific information regarding the County's sewer system.