Wastewater/Sewer Utility

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Wastewater refers to any water that needs cleaning after it is used indoors – such as water from dish washing, laundry, baths/showers, toilets, and countless other sources. All wastewater produced by the City of Tumwater is managed and treated by LOTT Clean Water Alliance plant. LOTT provides sewage treatment for all regional wastewater flows within Tumwater, Lacey, Olympia and select areas of Thurston County. 

LOTT is a non-profit corporation whose services include wastewater treatment, reclaimed water production, and long-range planning for regional sewage treatment needs. “LOTT” stands for its four government partners – Lacey, Olympia, Tumwater, and Thurston County. Functioning as a quasi-governmental agency, LOTT is governed by a Board of four elected officials appointed from its partner jurisdictions and operates under the authority of an intergovernmental agreement. Joint facilities include a large centralized treatment plant, a satellite treatment plant, three major pump stations, major sewer interceptor pipelines, and reclaimed water distribution pipelines.