Connecticut Stormwater-General regulations & environmental compliance analysis

Connecticut Stormwater-General: 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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Industrial facilities: 22a-430-3 RCSA

Construction activities: 22a-430-3 RCSA

Commercial activities: 22a-430-3 RCSA

Municipalities: 22a-430-3 RCSA

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. For additional information about Connecticut's wastewater discharge permit program, see the state section NPDES PERMIT.

Similar to the federal program, the state has developed NPDES general permits for stormwater discharges from industrial facilities, dewatering wastewaters and construction activities, and municipal separate storm sewer systems (MS4s). In addition, the state also has a general permit for commercial activities with 5 or more acres of contiguous impervious surfaces.

See the national section STORMWATER—GENERAL for more information on the federal program and the state sections STORMWATER—INDUSTRIAL FACILITIES, STORMWATER—CONSTRUCTION ACTIVITIES, and STORMWATER—MUNICIPALITIES for information on the state requirements for these specific types of stormwater discharges.

Any facilities or activities that do not qualify ...

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