Phoenixville’s MS4 Program

River area in the fallPhoenixville’s Municipal Separate Storm Sewer System (MS4) Program

Untreated and uncontrolled stormwater runoff is the number one cause of impairment in local Pennsylvania waterways. Polluted runoff is often transported through municipal stormwater systems where it is eventually discharged into streams.

The United States Environmental Protection Agency (EPA) has established a municipal stormwater management program known as the MS4 Program that is intended to improve water quality of the waterways in the United States, by reducing the quantities of pollutants that stormwaters can carry into stormsewer systems during storm events.

Discharge Permit

As part of the MS4 Program, the Borough of Phoenixville, like other municipalities, holds a permit to discharge stormwater into the local waterways.

As part of this permit, the Borough is responsible for overseeing a stormwater management program that reduces the discharge of pollutants to the maximum extent possible, and that satisfies the water quality requirements of the Clean Water Act. In Pennsylvania, the MS4 program is administered by the Pennsylvania Department of Environmental Protection (DEP).

Program Elements

The MS4 stormwater management program has six elements known as “minimum control measures” (MCM). It is intended that implementation of these six MCMs will result in an immediate and long-term reduction of pollutants that are discharged into waterways. The six minimum control measures include: 

  • Borough Pollution Prevention/Good HousekeepingStream surrounded by greenery
  • Construction Site Runoff Control
  • Illicit Discharge Detection and Elimination
  • Post Construction Runoff Control
  • Public Education and Outreach
  • Public Participation and Involvement

Do Your Part

The Borough of Phoenixville is committed to improving water quality within the municipal watershed through better management of stormwater runoff. Every resident and business owner needs to participate in the municipal stormwater program by reducing and preventing pollutant runoff from their own property. They should also report any non-stormwater discharges that flow into local waterways to the Borough at 610-933-8801.