MS4 Pollutant Reduction Plan (Melvin Avenue Basin)

G&A developed a Pollutant Reduction Plan (PRP) for Morrisville Borough in accordance with the requirements of the General Permit for Stormwater Discharges from Small Municipal Separate Storm Sewer Systems (MS4).  The Borough’s MS4 Approval of Coverage was issued by the Pennsylvania Department of Environmental Protection and required the reduction of sediment loading to the impaired Rock Run and Martins Creek watersheds.  The MS4 PRP established the existing pollutant loading discharged from the MS4 to Rock Run and Martins Creek and presented a plan to reduce these pollutants.

Morrisville Borough

Morrisville, PA

Market Segment



Kurt Schroeder, P.E.
Executive Vice President

The MS4 Permit’s PRP specified a stormwater Best Management Practice to upgrade the existing Melvin Avenue detention basin to capture sediment and provide the required sediment loading reduction. The project included the excavation of the existing soil media in the basin and importin amended soils to help promote infiltration. In addition, new headwall and outlet structures were installed. New plantings and landscaping were installed to naturalize the basin and help with water quality.

G&A assisted the Borough in securing grant funding through the Commonwealth of Pennsylvania Commonwealth Financing Authority’s Watershed Restoration and Protection Program (WRPP) for $187,992, and combined with the Borough’s successful PA Small Water and Sewer Grant in the amount of $122,008, were able to complete this important project.

G&A also performed survey services, design, permitting, and provided construction oversight. Through the completion of this project Morrisville Borough was able to meet their pollutant reduction required by the MS4 Permit.