MS4 Pollutant Reduction Pla

The Municipal Separate Storm Sewer System (MS4) is the system of conveyances (including sidewalks, roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains) owned and operated by the City of Monessen and designed or used for collecting or conveying stormwater, and that is not used for collecting or conveying sewage.

The City of Monessen is required to develop and implement a Pollutant Reduction Plan (PRP) for MS4 discharges to impaired portions of a UNT to Speers Run and several Unnamed Tributaries (UNT's) to the Monongahela River as part of the 2018 National Pollutant Discharge Elimination System (NPDES) MS4 General Permit application to the Pennsylvania Department of Environmental Protection (PA DEP). This plan has been prepared based on the best and most current guidance made available by PA DEP. Click here to view the report.

Below is the link to the various fact sheets relating to the MS4 Program:

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