Gresham Oregon

Taking in an average of 13 million gallons of sewage per day, the wastewater treatment plant in Gresham, Ore. is one of the city’s largest users of energy. Located near the Columbia River northeast of Portland, the Gresham Wastewater Treatment Plant (WWTP) is a basic secondary activated sludge facility with 20 million gallons/day (mgd) of Read more