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PennDOT MS4 Permit - Municipal Coordination

This FAQ outlines PennDOT's MS4 permit which covers stormwater conveyances operated by PennDOT and used for collecting or conveying stormwater runoff associated with PennDOT roads, bridges, and related structures, such as maintenance facilities.  Topics include the operational responsibility for stormwater systems on state roads, inspections, illegal discharges and other frequently raised questions regarding PennDOT and municipal coordination related to stormwater systems.


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  1. Toni Pogue

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