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Treatment Facilities

Cleaning and Restoring Water Resources

The LOTT Clean Water Alliance operates a complex system of facilities worth an estimated $1 billion. Treatment facilities include the Budd Inlet Treatment Plant, Budd Inlet Reclaimed Water Plant and Martin Way Reclaimed Water Plant. The conveyance system includes a reclaimed water storage tank, three major pump stations, miles of sewer interceptor lines and reclaimed water pipelines, and the Hawks Prairie Reclaimed Water Ponds and Recharge Basins.

Aerial view of the Budd Inlet Treatment Plant, Olympia WA
Overview of two secondary clarifiers at the Budd Inlet Treatment Plant, Olympia, Washington

LOTT’s Central Treatment Plant​

The heart of LOTT’s system is the Budd Inlet Treatment Plant, located in Olympia. The plant operates 24 hours a day, every day, cleaning wastewater to the highest standards of any wastewater treatment plant along Puget Sound. The plant treats wastewater to advanced secondary standards with nitrogen removal. This step is critical to protect water quality in Budd Inlet, where most of the treated water is discharged. About 13 million gallons of wastewater flow through the plant on average each day, though flows are much higher in the wet months.

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Overview of two secondary clarifiers at the Budd Inlet Treatment Plant, Olympia, Washington

LOTT’s Central Treatment Plant​

The heart of LOTT’s system is the Budd Inlet Treatment Plant, located in Olympia. The plant operates 24 hours a day, every day, cleaning wastewater to the highest standards of any wastewater treatment plant along Puget Sound. The plant treats wastewater to advanced secondary standards with nitrogen removal. This step is critical to protect water quality in Budd Inlet, where most of the treated water is discharged. About 13 million gallons of wastewater flow through the plant on average each day, though flows are much higher in the wet months.

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Budd Inlet Reclaimed Water Plant, Olympia, WA

Producing Reclaimed Water at the Budd Inlet Plant

The Budd Inlet Reclaimed Water Plant treats the wastewater to even higher standards, producing Class A reclaimed water – a valuable resource that can be used safely for many purposes. The plant uses a sand filter system and an additional chlorine disinfection step to meet Class A standards. The facility can produce up to 1.5 million gallons per day. In the summer, most of this water is used to irrigate several downtown Olympia parks and streetscapes, and the Tumwater Valley Golf Course.

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LOTT's Martin Way Reclaimed Water Plant, Lacey WA

Producing Reclaimed Water at LOTT's Satellite Plant in Lacey

The Martin Way Reclaimed Water Plant is a satellite treatment facility that treats raw wastewater to high-quality, Class A reclaimed water standards. The plant features membrane bioreactor technology, which combines biological treatment, microfiltration and chlorine disinfection to meet Class A standards. The facility can produce up to 1.5 million gallons per day. Most of this water is used to replenish groundwater at two facilities: LOTT’s Hawks Prairie Ponds and Recharge Basins and the Woodland Creek Groundwater Recharge Facility, owned by the cities of Lacey and Olympia.

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LOTT's Hawks Prairie Ponds and Recharge Basins site, Lacey WA

Replenishing Groundwater with Class A Reclaimed Water

At this 40-acre site on Hogum Bay Road in Lacey, Class A reclaimed water circulates through a series of five constructed wetland ponds. Water from the ponds then flows to shallow gravel basins. From there, the water infiltrates through the soils to replenish groundwater. The site is open to the public and features walking trails, viewing benches, wildlife, native plantings and kiosks with information about reclaimed water.

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Reclaimed water tank at T Street Park, Tumwater WA

Co-Locating a Park and a Storage Tank

LOTT’s Reclaimed Water Storage Tank is located at the site of the Deschutes Valley Park on T Street. The one-million-gallon storage tank allows for use of Class A reclaimed water to irrigate the Tumwater Valley Golf Course and other sites. The storage tank is built into the hillside and provides the foundation for the small neighborhood park overlooking the Deschutes River valley. Park features include a playground, restrooms, benches and a beautiful tile mosaic that highlights the many connections between our communities and our water.

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