2 plants indexed.
Pilot Rock STP is a secondary treatment plant serving 1,540 people in Umatilla County, Oregon. It discharges 643.52 thousand cubic meters annually within the Columbia River Basin.
ECHO STP is a secondary treatment plant in Umatilla County, Oregon, serving 690 people. It discharges 227.13 volume units daily and has a designed capacity of 454.25 volume units.
UtilityRadar indexes 2 wastewater treatment plants in Umatilla County, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, PILOT ROCK STP has the highest designed capacity at 946 m3/day.