The Coldwater Wastewater Treatment Plant (WWTP) in Michigan utilizes a trickling filter/solids contact (TF/SC) process for secondary wastewater treatment. The facility has an average design flow of 140 liters per second (3.2 million gal per day [mgd]) and a peak hourly design flow of 351 liters per second (8 mgd).
Radnor Township manages storm water by offering above-ground community recreation area and below-ground relief of surface floodingFounded in 1682 and located 13 miles west of Philadelphia, the Radnor Township municipality is the home of more than 30,000 residents. Radnor Township lies along the Main Line, a group of wealthy Philadelphia suburbs. For several decades, however, the township has required effective storm water management because the area is frequently plagued by huge storm events resulting in significant flooding, sometimes 2 to 3 ft deep.