MS4 - Municipal Separate Storm Systems
In accordance with the Pennsylvania Department of Environmental Protection’s (DEP) National Pollutant Discharge Elimination System (NPDES) General Permit regulations, Easttown 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).
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. The six BMP categories are:
- Public Education & Outreach
- Public Participation & Involvement
- Illicit Discharge Detection & Elimination
- Construction Site Stormwater Runoff
- Post Construction Stormwater Management in New Development & Redevelopment
- Pollution Prevention and Good Housekeeping for Municipal Operations & Maintenance
The federal regulations provide flexibility within these six categories of BMPs.
Township residents can learn more about these regulations and the need to improve stormwater quality by visiting the Pennsylvania Department of Environmental Protection’s (DEP) stormwater website by clicking here, or reviewing the following information. Additional information can also be found by visiting the website of the Chester-Ridley-Crum Watersheds Association, or by clicking the links below.
- DEP Southeast Regional Office
- DRN Clean Water Partners booklet
- Stormwater Discharges from MS4s
- Stormwater Public Education
- Stormwater Outreach Materials and Reference Documents
- National Menu of Best Management Practices (BMPs)
- Chester County Water Resources Authority
- Chester County Conservation District
- Easttown Township's Stormwater Management Ordinance
- Caring for Your Animals - Protecting Water Quality
- Rain Gardens Brochure
- Link Between Fertilizer and Stream Health
- Township Swimming Pool Discharge Requirements
- DEP Swimming Pool Discharge Requirements
- Natural Lands Trust - Nature Notes
- Monthly Stormwater Planner for Residents
- Oil and Water Don't Mix - Stop the Sheen!
- Motor Oil, Antifreeze, Car Batteries, Tires and Scrap Metal - what to do with them
- Winter and Spring Tips for Yard Care and Stormwater Management
- Proper Mulching is Key to Healthy Trees
- Good Housekeeping Practices for Auto Maintenance, Repair and Fueling Operations
- Good Housekeeping Practices for Restaurants & Food Service Establishments
- Soil Erosion and Sediment Requirements for Minor Construction Project Activities
- 20 Ways to Protect your Stream and Streamside Property
- Water Quality Hotlines - Who to call to report “illicit” discharges into storm sewers or if you see storm sewer discharge flowing into a stream.
- What the Construction Industry Should Know About Stormwater In Our Community
- Construction Industry - Approval to Build is Just the Beginning
- When it Rains, It Drains - Understanding stormwater and how it can affect your money, safety, health and the environment.