EPA MS4 Program Information
The National Pollutant Discharge Elimination System (NPDES) Phase II stormwater program requires that Municipal Separate Storm Sewer System (MS4s) address the six required elements contained in the federal regulations to reduce water pollution:
General Information
Information for Homeowners and Residents
Information for Businesses
Information for Builders and Developers
Additional Educational Material For Protecting Streams
20 Ways to Protect Your Stream & Streamside Property
Click here for more information
When it Rains
Click here for more information
Keep Car Washing from Harming Our Streams
Click here for more information
Fertilizer Informational Flyer
Click here for more information
Pennsylvania Sea Grant
PA DEP Stormwater Management
Helpful Links
EPAs NPDES Permit Program Basics
EPAs Municipal Stormwater Resources
(NPDES Stormwater Discharge from MS4s)
PA DEP’s Stormwater Management Home Page
Ridley Township Citizen Water Quality Hotlines
Sanitary Sewer Backups and Overflows or Illegal Dumping
Ridley Township
(Monday thru Friday 8:30 am to 4:30 pm)
610-534-4800
After Hours Dial 9-1-1
Spills, Leaks, Creek Contamination
DEP Water Quality Hotline
484-250-5900
Fisk Kills, Illegal Fishing
PA Fish Commission
717-626-0228
Water Main Breaks
Aqua, PA
610-525-1402
Construction Site Erosion and Sediment Discharge
Delaware County Conservation District
610-892-9484