Stormwater Management

Stormwater runoff is generated when precipitation from rain and snow melt events flow over land and impervious surfaces and does not infiltrate into the ground. The runoff from streets, lawns, farms, and construction and industrial sites pick up fertilizers, dirt, pesticides, oil, grease and many other pollutants and discharge into our lakes, streams and rivers. This untreated discharge is detrimental to our water quality as it can adversely affect our drinking water supply and environment. Many Best Management Practices (BMP's) such as detention/retention/infiltration basins, are already in place to help keep out water clean.

Lower Gwynedd Township regulates stormwater management which goes above and beyond typical BMP's through a permit that is obtained from the Pennsylvania Department of Environmental Protection (PA DEP) through the National Pollution and Discharge Elimination System Phase II (NPDES)/Municipals Separate Storm Sewer System (MS4). This is a Federal requirement from the United States Environmental Protection Agency (USEPA) that is administered by the State. This NPDES Permit is broken up into six minimum control measures to be regulated and enforced by the Township. These minimum control measures include:

• Public Education and Outreach
• Public Participation/Involvement
• Illicit Discharge, Detection and Elimination
• Construction Site Runoff Control
• Post-Construction Runoff Control
• Pollution Prevention / Good Housekeeping

Lower Gwynedd Township has begun monitoring and testing of storm sewer outfalls that have flow during dry periods. The township asks all residents to cooperate with the inspectors, as some outfalls are located on private properties.

For any questions or concerns regarding stormwater or to report illicit discharges to the storm sewer system please call the Township at (215) 646 - 5302.

Tips For Residents:

• Thirsty
• Catch of the Day
• GRASSCYCLING
• RAIN GARDEN
• Canines for Clean Creeks
• Car Washing Information
• Septic System Information
• Winter Deicing Tips
• Vehicle Maintenance Tips
• Pet Waste Tips
• Fertilizing Tips
• Water Conservation Tips
• DEP Reminds Pool Owners to Handle Waste Water Safely

Tips For Contractors:

• Stormwater and the Construction Industry
• Stormwater Pollution Prevention
• When it Rains it Drains

FOR MORE INFORMATION ON STORMWATER MANAGEMENT, PLEASE VISIT:

• USEPA
  • Stormwater Basic Information
  • Stormwater Program
  • Stormwater Discharge From MS4's
  • Stormwater Outreach Materials and Reference Documents
• PA DEP
  • PA DEP Southeast Region Office
  • Stormwater Management Program
• (MCCD) Montgomery County Conservation District
• (FEMA) Federal Emergency Management Agency
• (CWP) Center for Watershed Protection