Spokane County WA Public Works Homepage

Wastewater Operations

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The Wastewater Operations section provides inspection, operation and maintenance of the greater Spokane County’s Wastewater Collection System. We make every effort to provide reliable, cost-effective, timely and courteous service to the public.

The primary responsibility is to ensure that the Wastewater Collection system functions properly. The collection system continues to expand each year due to growth of the areas we serve.

System Process

The generated wastewater flows come from household items such as sinks, showers, toilets, washing machines, etc. and are combined with wastewater flows from businesses and industries. The combined wastewater flows are transported by gravity through the Spokane County’s wastewater collection lines. In low lying areas the wastewater is pumped to higher elevations and all of the wastewater ultimately flows into large Interceptor pipes that end at the Spokane County Regional Water Reclamation Facility (SCRWRF) or the City of Spokane Riverside Park Water Reclamation Facility (RPWRF) for treatment.

System Make-Up

The Spokane County Wastewater Collection system is currently made up of 34 Wastewater Pumping Stations, approximately 37 miles of pressure force-mains, 665 miles of gravity sewer collection pipes, and 14,550 manholes.

Contact for Service

Wastewater Operations provides on-call emergency services 24-hours per day.

If you have questions about the Wastewater Collection system or a problem to report, contact Wastewater Operations:  509-477-1984

  1. Spokane County WA Homepage

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  1. Spokane County

  2. 1116 W Broadway Avenue

  3. Spokane, WA 99260

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