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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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.