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Phone: (610) 869-2138
Phone: (610) 869-2138
Welcome
Stormwater is the runoff water after it rains or snows. Stormwater picks up litter, sand, bacteria, and chemicals as it flows over the land and into storm drains, and it carries these pollutants to our streams, ponds, wetlands and coastal waters. Please see our updates highlighted below.
Educational info & student activities
Strom Water Educational Materials
The stormwater educational materials for this year’s MCM 1 MS4 requirements for Londonderry Township can be viewed below.
Illicit discharge awareness
The EPA defines an illicit discharge as ‘any discharge to an MS4 (Stormwater System) that is not composed entirely of stormwater. The Township encourages residents to report any illicit discharges or water quality complaints to Township staff. Some examples of reportable activities include:
- Household cleaners and chemicals
- Lawn fertilizers, grass clippings, and other maintenance products
- Vehicle fluids including oil and runoff from washing
- Animal waste
- Plastics and other trash
If you witness an illicit discharge into the municipal storm sewer system, please call 610.869.2138 and provide the following:
- Name
- Date of Observation
- What was observed?
- Nearest Address
- Was there an odor/color to the discharge?
If you are calling after normal business hours, please leave a detailed message. You may also submit a written summary to the municipal office that contains the information above.
additional information
County Information
Chester Conservation District website (https://www.chesco.org/284/ErosionStormwater).
EPA Information
EPA Stormwater website (https://www.epa.gov/npdes/npdes-stormwater-program)
DEP Information
PADEP Stormwater website (https://www.dep.pa.gov/Business/Water/CleanWater/StormwaterMgmt/Pages/default.aspx)