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Connecticut Thermal Discharges: What you need to know

Governing Law and Regulations

Water quality standards: Connecticut General Statutes (CGS) 22a-426

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Thermal discharge variances: 22a-430-4(q) Regulations of Connecticut State Agencies (RCSA)

Regulatory Agencies

Connecticut Department of Energy and Environmental Protection (DEEP) Bureau of Water Protection and Land Reuse

U.S. Environmental Protection Agency (EPA) Region 1

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Connecticut follows the federal scheme concerning thermal discharges and has divided the state's waters into nine classifications. Each classification has its own designated level of acceptable temperature change. See the national section THERMAL DISCHARGES for more information on the federal regulatory scheme.

Administration and enforcement. DEEP's Bureau of Water Protection and Land Reuse is responsible for the administration and enforcement of the state's thermal discharge regulations.

State Requirements

STATE WATER QUALITY STANDARDS

CGS 22a-426

DEEP's Water Quality Standards and Criteria include allowable temperature increase criteria for each water quality classification. See the state section EFFLUENT LIMITATIONS for a description of the state's inland and coastal surface water classifications and designated uses.

Thermal Discharges

Inland Waters Classes AA, A, and B. There must be no changes from natural conditions that would impair any existing or designated uses assigned to the specific Class and in no case exceed 85 degrees Fahrenheit (F), or in any case raise the surface water temperature more than 4 degrees F.

Coastal and Marine Waters Classes SA and SB. There must be ...


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State Requirements

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Connecticut Thermal Discharges Resources

Thermal Discharges Products

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