Wastewater plants in Washington

Leavenworth City of POTW

Leavenworth, Washington

Leavenworth City of POTW serves approximately 1,970 residents in Leavenworth, Washington. The plant treats municipal wastewater before discharging into the local watershed.

Not Reported 1,970 Low

Kalama Wastewater Treatment Plant

Kalama, Washington

Kalama Wastewater Treatment Plant serves the city of Kalama, Washington, USA. It treats wastewater from approximately 2,515 residents and discharges into the local watershed.

Not Reported 2,515 Low

EPHRATA S_T FACILITY

Ephrata, Washington

Ephrata S_T Facility is a municipal wastewater treatment plant serving approximately 6,890 people in Ephrata, Washington, United States. It operates under the US Clean Water Act framework.

Not Reported 6,890 Low

COLVILLE SEW LAGOON

Colville, Washington

COLVILLE SEW LAGOON is a municipal wastewater treatment plant serving Colville, Washington. It treats wastewater for approximately 5,116 residents and discharges into the local watershed.

Not Reported 5,116 Low

CLE ELUM S_T FACILITY

Cle Elum, Washington

Cle Elum S_T Facility is a municipal wastewater treatment plant serving Cle Elum, Washington, USA. It treats wastewater from a population of approximately 4,168 under the US Clean Water Act.

Not Reported 4,168 Low

CHENEY S_T FACILITY

Cheney, Washington

Cheney S_T Facility is a municipal wastewater treatment plant serving Cheney, Washington, USA. It serves a population of approximately 10,790 and operates under the US Clean Water Act framework.

Not Reported 10,790 Low

Chelan City of POTW

Chelan Falls, Washington

Chelan City of POTW serves 3,627 people in Chelan Falls, Washington. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge.

Not Reported 3,627 Low

CASHMERE STP FACILITY

Cashmere, Washington

Cashmere STP Facility serves 3,075 people in Cashmere, Washington. The plant discharges treated wastewater into the Wenatchee River watershed, which flows to the Columbia River.

Not Reported 3,075 Low

BINGEN POTW

Bingen, Washington

Bingen POTW serves approximately 2,955 residents in Bingen, Washington. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.

Not Reported 2,955 Low

BENTON CITY S_T FAC

Benton City, Washington

Benton City S_T FAC is a municipal wastewater treatment plant in Benton City, Washington, serving approximately 3,145 people. It operates under the US Clean Water Act framework with state-level NPDES permitting.

Not Reported 3,145 Low

ARLINGTON TREATMENT

Arlington, Washington

Arlington Treatment serves approximately 17,930 residents in Arlington, Washington. The plant operates under U.S. EPA and Washington state regulations, discharging treated wastewater into the Stillaguamish River watershed.

Not Reported 17,930 Low

ZILLAH TREATMENT

Zillah, Washington

Zillah Treatment serves approximately 3,000 residents in Zillah, Washington. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.

Not Reported 3,000 Low

Yakima Regional POTW

Yakima, Washington

Yakima Regional POTW serves over 105,000 people in Yakima, Washington. The plant operates under the US Clean Water Act, treating municipal wastewater before discharge into the Yakima River basin.

Not Reported 105,141 Medium

Woodland Wastewater Treatment Plant

Woodland, Washington

Woodland Wastewater Treatment Plant serves approximately 5,550 residents in Woodland, Washington. The facility discharges treated effluent into the local watershed, contributing to the Columbia River basin.

Not Reported 5,550 Low

WEST RICHLAND SEW TRT FAC

West Richland, Washington

West Richland Sew Trt Fac serves approximately 12,200 people in West Richland, Washington. The plant operates under the U.S. Clean Water Act via NPDES permits, discharging treated wastewater to local waterways.

Not Reported 12,200 Low

City of WESTPORT WW Treatment_Sewer

Westport, Washington

The City of Westport WW Treatment_Sewer plant serves approximately 2,022 residents in Westport, Washington, USA. It is located near the coast of Grays Harbor County, discharging into the Pacific Ocean watershed.

Not Reported 2,022 Medium

WENATCHEE POTW

Wenatchee, Washington

WENATCHEE POTW serves approximately 32,090 people in Wenatchee, Washington. The plant discharges treated wastewater into the Columbia River basin, supporting local water quality and downstream ecosystems.

Not Reported 32,090 Low

WASHOUGAL S_T FACILITY

Washougal, Washington

Washougal S_T Facility is a municipal wastewater treatment plant serving approximately 14,210 people in Washougal, Washington, USA. It operates under the US Clean Water Act and EPA NPDES permit framework.

Not Reported 14,210 Low

WAPATO STP

Wapato, Washington

WAPATO STP serves Wapato, Washington, treating wastewater for approximately 6,375 residents. The plant operates under the US Clean Water Act, discharging into the Yakima River basin.

Not Reported 6,375 Low

WALLA WALLA STP

Walla Walla, Washington

Walla Walla STP serves approximately 31,670 residents in Walla Walla, Washington. The plant discharges treated wastewater into the local watershed, ultimately draining to the Columbia River basin.

Not Reported 31,670 Low