Connecticut Stormwater-Municipalities regulations & environmental compliance analysis

Connecticut Stormwater-Municipalities: What you need to know

Governing Law and Regulations

National Pollutant Discharge Elimination System (NPDES) permits: 22a-430-3 Regulations of Connecticut State Agencies (RCSA)

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Municipalities: 22a-430-3 RCSA

2017 Permit Coverage

Regulatory Agency

Connecticut Department of Energy and Environmental Protection (DEEP) Environmental Enforcement Bureau of Materials Management and Compliance Assurance Water Permitting and Enforcement Division

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Connecticut is fully authorized by the U.S. Environmental Protection Agency (EPA) to develop and issue the National Pollutant Discharge Elimination System (NPDES) permits, including for discharges resulting from stormwater runoff associated with municipal separate storm sewer systems (MS4s).

Similar to the federal program, the state has developed a NPDES general permit for stormwater discharges from MS4s. See the national section STORMWATER—MUNICIPALITIES for more information on the federal MS4 permitting program.

Administration and enforcement. Connecticut Department of Energy and Environmental Protection's (DEEP) Water Permitting and Enforcement Division is responsible for the administration and enforcement of the NPDES stormwater discharge permit program in Connecticut.

Note: Connecticut issued a new MS4 permit on January 20, 2016, that goes into effect on July 1, 2017. The current permit has been extended to June 30, 2017. There is no reregistration required for extension under the current permit. Permittees covered under the current general permit must continue to implement their Stormwater Management Plan (SMP), conduct annual sampling, ...


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