Estimates of discharge from wastewater treatment plants for 1,518 U.S. Geological Survey study watersheds, 1978 through 2012
This product consists of a table of annual discharge estimates in millions of gallons per day from wastewater treatment plants (WWTPs) for 1,518 watersheds in the conterminous United States.  The data are based on information extracted from the U.S. Environmental Protection Agency’s Clean Watersheds Needs Survey. The …