Penn Township is one of approximately 670 small urban communities within the Commonwealth of Pennsylvania required to have its municipal separate storm sewer system (MS4) regulated under the Pennsylvania Department of Environmental Protection’s (PADEP’s) National Pollution Discharge Elimination System (NPDES) Phase II permit program for storm water discharges from storm sewer systems within small-to medium-sized communities within urbanized areas as defined by the 2000 U.S. Census. Learn more about stormwater, MS4, and what Penn Township’s stormwater management includes…
