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Clean Water Act (CWA) protects the chemical, physical, and biological integrity of the nation’s waters. It sets requirements for each state to develop programs to address:
U.S. Environmental Protection Agency (EPA) enforces these standards through the
National Pollutant Discharge Elimination System (NPDES) program, which regulates discharges from point sources. The
Maryland Department of the Environment (MDE) has delegated authority to issue NPDES discharge permits within Maryland. The Maryland Department of Transportation State Highway Administration (MDOT SHA) is covered under a Municipal Separate Storm Sewer System (MS4) permit.
Our program shows transportation professionals how to reduce pollutants through erosion control, proper disposal of vehicle fluids, programs to stop roadside dumping and more.
To reduce nitrogen, phosphorus and sediment from reaching the Chesapeake Bay, MDOT SHA follows Best Management Practices (BMPs) for structural stormwater controls, nonstructural stormwater controls, source control and land use.
Use this tool to view MDOT SHA projects that have been proposed to improve water quality in the Chesapeake Bay. Here you can also access completed projects.
MDOT SHA is permitted to control storm drain system pollutants through a series of programs. Public notices are posted on the MDOT SHA
TMDL Implementation Public Notice page.
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