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LOTT Leads the Way with Biological Nutrient Removal


Photo by EG Aerial Photography

LOTT Clean Water Alliance provides wastewater treatment and water reclamation services for nearly 120,000 residents in Lacey, Olympia, Tumwater, and Thurston County, WA. The non-profit, formed by four government partners, is recognized locally, regionally, and nationally as an industry leader in progressive treatment approaches that meet some of the most stringent discharge limits in the United States. LOTT operates the Budd Inlet Treatment Plant, which was built in the early 1950s in downtown Olympia, Washington.

The Washington State Department of Ecology has initiated a general permit process that will eventually require all 84 wastewater treatment plants discharging into the Puget Sound to implement biological nutrient removal (BNR). BNR is an important treatment process to reduce nitrogen in wastewater effluent. This process reduces nutrient loading in receiving water bodies,... (more)