Connecticut Drinking Water regulations & environmental compliance analysis

Connecticut Drinking Water: What you need to know

Governing Law and Regulations

State water supplies: Connecticut General Statutes (CGS) 25-32 to 25-54

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Public water supplies: 19-13-B80 Regulations of Connecticut State Agencies (RCSA)

Drinking water quality: 19-13-B101 RCSA and 19-13-B102 RCSA

Emergency assistance grants: 25-33b-5 RCSA

Operator certification program: 25-32-9 RCSA

Regulatory Agencies

Connecticut Department of Public Health (CDPH) Regulatory Services Branch Drinking Water Section

Public Utilities Regulatory Authority (PURA)

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 has been granted primacy from the U.S. Environmental Protection Agency (EPA) to administer the drinking water protection requirements under the federal Safe Drinking Water Act (SDWA). The Connecticut Department of Public Health (CDPH) has jurisdiction over all matters concerning the purity and adequacy of any water supply source used by any municipality, public institution, or water supply company. This includes the methods used to obtain water, the safety of the distribution system, the adequacy of treatment, and the construction and operation of water distribution plants and systems.

The state generally follows the federal rules for maximum contaminant levels (MCLs). In addition to the federal MCLs, Connecticut has more stringent standards for nickel of 0.1 milligrams per liter (mg/L), silver (0.05 mg/L), and chloride (250 mg/L).

Administration and enforcement. CDPH's Drinking Water Section has primary responsibility for administering the drinking water protection program in Connecticut.

State Requirements


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More on this topic:

Governing Law and Regulations
Regulatory Agencies
Comparison: State vs. Federal
State Requirements