MS4 Program Information

Program Overview

The Pennsylvania Department of Environmental Protection has issued the Township an NPDES Permit for Stormwater Discharges from its small Municipal Separate Storm Sewer System (MS4). The Township’s MS4 system is inclusive of inlets, catch basins, storm sewers pipes, swales, and stormwater detention facilities, among many other facilities that collect, convey or manage stormwater. The MS4 Permit regulates discharges from the Township’s MS4 to the Waters of the Commonwealth with the intent of reducing the discharge of pollutants and increasing water quality to the maximum extent practicable. To comply with the requirements of the Permit, the Township must implement a plan to address the following six Minimum Control Measures (MCMs):

MCM 1 – Public Education and Outreach

MCM 2 – Public Participation and Involvement

MCM 3 – Illicit Discharge Detection and Elimination

MCM 4 – Construction Site Runoff Control

MCM 5 – Post-Construction Storm Water Management in New Development and Redevelopment

MCM 6 – Pollution Prevention/Good Housekeeping

Residents Roles in Helping to Prevent Stream Pollution

Township residents can help reduce the discharge of pollutants to the streams and protect water quality by doing the following:

Never dump anything besides stormwater into a storm drain, inlet, swale or stream. Dumping in these areas is an Illicit Discharge and is a violation of the Township Prohibited Discharge Ordinance.

Report Illicit Discharges. If you observe anyone dumping anything into the MS4 system, or notice a non-stormwater discharge entering the MS4 or a stream, immediately notify the Township.

Pick up and properly dispose of pet waste. Pet waste should never be disposed of in storm drains, inlets, catch basins, or streams.

Wash vehicles such that wash water does not enter the MS4. Wash vehicles in lawn or gravel areas, or take them to commercial car washes.

Recycle or properly dispose of hazardous materials including paints, used oil, and chemicals.

Pick up litter, debris, or garbage from yards, sidewalks, driveways, and other areas so that it is not washed into a storm drain.

Reporting Illicit Discharges

It is important to remember that stormwater runoff collected by the MS4 does not get treated before it is discharged to a waterway. The MS4 is intended to convey only stormwater. An illicit discharge is any type of pollutant or substance that enters the storm sewer system that is not comprised entirely of stormwater. Such examples of these pollutants are:

Yard Waste, Grass Clippings, Leaves

Oil, grease, or chemicals

Soap suds

Animal waste

Garbage, debris, or litter

Residents and members of the community serve an important role in identifying and reporting illicit discharges to help prevent pollution of our streams and lakes. Anything that enters the MS4 system that is not stormwater is considered an illicit discharge. If you observe any instance of dumping any substance into a storm inlet, or notice discolored or evidently contaminated discharge from any storm sewer, please notify the Township Office by phone or through submission on the Township Website.