The Clean Water Act is the federal legislation that governs stormwater management. Stormwater point discharges to waters of the U.S. are regulated using National Pollutant Discharge Elimination System (NPDES) permits. In 1999, federal regulations extended coverage of the NPDES program to local separate storm sewer systems (MS4’s) serving populations less than 100,000. Upper Uwchlan Township is required to comply with the NPDES program as an MS4. Under the NPDES stormwater program, permittees must develop a stormwater management plan that provides the details of how the community will comply with the requirements of the permit. Permits are based on a framework of six minimum control measures:
Active Stormwater Projects
In 2018, Upper Uwchlan Township was awarded grant funding through the Department of Environmental Protection (DEP) for a stormwater management project. The Township’s project, Restoration of the Marsh Creek Watershed, was one of 61 projects selected by the DEP. The project will include the restoration of approximately 700 linear feet of streambank to a tributary of the Marsh Creek, the construction of a naturalized detention basin at Upland Farms and the naturalization of Township owned detention basins located off of Heather Hill Drive.
Report An Illicit Discharge
If you have observed illegal dumping of any materials - e.g., used oil, soap/detergents or other compounds, waste water, trash, or yard waste - into a street, storm drain, or watercourse, please report this discharge via the Township's Report a Concern map.
Upper Uwchlan Township's Municipal Separate Storm Sewer System (MS4)
Upper Uwchlan Township is a participant in and is complying with all the requirements of the Pennsylvania Department of Environmental Protection's (DEP) Municipal Separate Storm Sewer System (MS4) program. The goals of the MS4 program and Upper Uwchlan Township are to reduce the discharge of pollutants from the Township, to protect water quality, and to satisfy requirements of the Clean Water Act. Please remember that the water, and any items that go into a storm sewer, goes directly into local streams. This water is not cleaned in any way and does not go to the waste water treatment plant. Residents can assist in keeping our stormwater and stormwater system clean by doing the following: dispose of water properly, clean up after your pets, use fertilizers properly and efficiently to prevent excess runoff, and store potential pollutants indoors. Please monitor stormwater inlets near your property. No one should dump anything into the storm sewer system. If you see someone dumping please call the township at 610-458-9400.
Watersheds Located in Upper Uwchlan Township
For more information about stormwater management, please see the information displayed on bulletin boards in the township building and other various businesses throughout Eagle Village.
Maintenance Tips for Homeowners
Leaves and Yard Waste
- EPA: National Menu of Stormwater Best Management Practices
- EPA: Stormwater Discharges from MS4s
- EPA: What You Can Do - Healthy Watersheds
- DEP: How to be Storm Water Smart
- DEP: Management of Cleaning Wastewater Fact Sheet
- Home Advisor: Stormwater Best Practices for Homeowners
- Penn State Extension: Guide to Proper Pet Waste Disposal
- OSU College of Engineering: Freshwater Pollution
- Alabama Cooperative Extension: Understanding Types of Water Pollution
- Project Oceanography: Pollution and Water Quality
- Texas Cooperative Extension: What is Water Pollution?
- Be StormWater Smart MS4 Brochure 4-29-2020
- Chester County Annual Water Status Report 2019
- Healthy Benefits of Green Infrastructure - EPA
- Homeowners Guide to Stormwater BMP Maintenance
- Homeowners Guide to Stormwater Management
- Illicit Discharge Detection and Elimination Fact Sheet
- Protecting Water Quality from Urban Runoff - EPA
- Stormwater Place Mat
- Swimming Pool Discharge and Disposal Guidelines
- When It Rains It Drains Brochure