3 plants indexed.
WARDEN DOMESTIC STP is a secondary treatment plant serving 2,690 people in Grant County, Washington. It discharges 681.37 megaliters annually and operates under U.S. EPA NPDES regulations.
Coulee City STP is a secondary treatment plant in Grant County, Washington, serving 565 people. It discharges treated wastewater inland, with a designed capacity of 272.55 and current volume of 264.98.
Sand Dunes WWTP serves 16,836 people in Grant County, Washington. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.
UtilityRadar indexes 3 wastewater treatment plants in Grant County, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, WARDEN DOMESTIC STP has the highest designed capacity at 1,173 m3/day.