Connecticut Groundwater regulations & environmental compliance analysis

Connecticut Groundwater: What you need to know

Governing Law and Regulations

Safe Drinking Water Act (SDWA), 42 USC 300f to 300j-26, and national primary drinking water regulations (NPDWR) at 40 CFR 141.1 to 141.571

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Hazardous waste treatment, storage, and disposal facilities (TSDFs): 22a-449(c)-104(a) Regulations of Connecticut State Agencies (RCSA)

Interim-status TSDFs: 22a-449(c)-105 RCSA

Groundwater criteria: 22a-133k Appendix C RCSA

Groundwater remediation: 22a-133k-3 RCSA

Groundwater at TSDFs: 22a-449(c)-104 RCSA and 22a-449(c)-105 RCSA

Aquifer protection: 22a-354i-1 to 22a-354i-10 RCSA

Best management practices (BMPs) for regulated activities: 22a-354i-9 RCSA

Regulatory Agencies

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

DEEP Bureau of Materials Management and Compliance Assurance

Connecticut Department of Public Health (DPH)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Connecticut protects state groundwater by use of a groundwater classification system based on groundwater use. Numeric standards for groundwater cleanup are based on the state's drinking water regulations. Connecticut has additional groundwater standards beyond those of the Environmental Protection Agency (EPA) for treatment, storage, and disposal facilities (TSDFs) and interim-status facilities. See the national section GROUNDWATER for more information.

The state has also adopted aquifer protection rules that limit the future development of lands within aquifers, and applies specific standards to existing facilities located within designated aquifer areas.

Administration and enforcement. DEEP and DPH share ...


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