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NOI/Application preparation


The following is a selection of resources for those seeking assistance in preparing an MS4 Notice of Intent (NOI) or application for permit coverage.

Links to resources outside of DEP's website do not necessarily constitute an endorsement.

2018 General permit (pag-13)

2018 NOI/Application preparation

  • DEP Statewide Existing Use Classifications
    Final PAG-13 permit package, including the NOI form and instructions

  • eMapPA
    This DEP application can be used to view urbanized areas (UAs) based on the 2000 and 2010 censuses along with other facilities and features.

  • MS4 Municipal Requirements Table (PDF)
    Table containing all municipalities and most non-municipal entities in Pennsylvania with regulated small municipal separate storm sewer systems (MS4s) that have applied or are expected to apply for National Pollutant Discharge Elimination System (NPDES) permit coverage and the surface waters the MS4 is believed to discharge to that are considered “impaired” according to DEP’s latest Integrated Water Quality Monitoring and Assessment Report

  • MS4 Non-Municipal Requirements Table (PDF)
    Table containing most non-municipal entities in Pennsylvania with regulated small municipal separate storm sewer systems (MS4s) that have applied or are expected to apply for National Pollutant Discharge Elimination System (NPDES) permit coverage and the surface waters the MS4 is believed to discharge to that are considered “impaired” according to DEP’s latest Integrated Water Quality Monitoring and Assessment Report