Maryland Stormwater-General regulations & environmental compliance analysis

Maryland Stormwater-General: What you need to know

Governing Law and Regulations

General stormwater permits: Code of Maryland Regulations (COMAR) and COMAR

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Stormwater management: COMAR to

Regulatory Agencies

Maryland Department of the Environment (MDE) Water Management Administration

U.S. Environmental Protection Agency (EPA) Region 3

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Maryland is authorized by the U.S. Environmental Protection Agency (EPA) to administer the federal National Pollutant Discharge Elimination System (NPDES) permit program for wastewater discharges, including stormwater. The state issues general permits covering stormwater discharges associated with industrial activities, construction activities, and municipal separate storm sewer systems (MS4s). In addition, Maryland issues individual stormwater discharge permits to facilities that do not qualify for general permit coverage. See the national section STORMWATER—GENERAL for information on the federal stormwater permitting program and the state sections STORMWATER—INDUSTRIAL FACILITIES, STORMWATER—CONSTRUCTION ACTIVITIES, and STORMWATER—MUNICIPALITIES for information on the state requirements for specific stormwater discharges.

Administration and enforcement. MDE's Water Management Administration is responsible for enforcing and administering the NPDES stormwater discharge permit program in Maryland.

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