Stormwater Tips & Guidelines
In accordance with the Pennsylvania Department of Environmental Protection’s (DEP) National Pollutant Discharge Elimination System (NPDES) General Permit regulations, Willistown Township is required to develop and implement a stormwater management program.
The program is based on the federal Municipal Separate Storm Sewer System (MS4) protocol (developed by DEP).
Best Management Practices
The DEP’s protocols provide our township with suitable guidelines to design a local program that addresses the DEP’s six Best Management Practices (or BMPs), which are also known as control measures.
These six BMP’s are designed to reduce the discharge of pollutants from MS4s, to the maximum extent practicable, to protect water quality, and to satisfy the appropriate requirements of the Federal Clean Water Act.
Best Management Practices Categories
The six BMP categories are:
Construction Site Stormwater Runoff Control Measure
Illicit Discharge Detection and Elimination Control Measure
Pollution Prevention and Good Housekeeping for Municipal Operations and Maintenance Control Measure
Post Construction Stormwater Management in New Development and Redevelopment Control Measure
Public Education and Outreach Control Measure
Public Participation and Involvement Control Measure
The federal regulations provide flexibility within these six categories of BMP’s.
Best Management Practices Guidelines
Go to best management practices links for pet owners, business owners, property management, and automobile maintenance.
Report Violations or Problems
Citizens are important advocates for the health of our local streams and water systems. To report a concern,
see the list of events to report and whom to contact
Township residents can learn more about these regulations and the need to improve stormwater quality by visiting the
, or reviewing the
Chester-Ridley-Crum Watersheds Association website
688 Sugartown Road
Malvern, PA 19355
Monday - Friday
8 a.m.-4 p.m.
DEP Stormwater Management
Chester Co. Conservation District
Chester Co. Water Resources Authority
Environmental Protection Agency
Municipal Stormwater - MS4
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688 Sugartown Road, Malvern, PA 19355
Monday - Friday, 8 a.m.-4 p.m.