CT4,974 active USTs

Connecticut Gas Station Compliance Guide

Everything fuel station operators in Connecticut need to know about UST compliance, managed by the Connecticut Department of Energy and Environmental Protection, Storage Tank & PCB Enforcement Unit – Underground Storage Tank Program.

State Agency

Connecticut Department of Energy and Environmental Protection, Storage Tank & PCB Enforcement Unit – Underground Storage Tank Program

DEEP UST Program

Phone: (860) 424-3374

Email: deep.USTEnforcement@ct.gov

Visit CT DEEP Website →

Compliance Deadlines

Federal EPA Requirements

RequirementDeadlinePenaltyCFR
Monthly Release DetectionOngoing — monthlyup to $74,943/day (40 CFR 19.4, 2025)40 CFR 280.41
Walkthrough InspectionEvery 30 days (containment sumps and hand-held release detection equipment annually)up to $74,943/day (40 CFR 19.4, 2025)40 CFR 280.36
Operator Training (Class A/B/C)Within 30 days of designationup to $74,943/day (40 CFR 19.4, 2025)40 CFR 280.242
Financial ResponsibilityContinuousup to $74,943/day (40 CFR 19.4, 2025)40 CFR 280.90
Spill/Overfill Prevention EquipmentRequired at all UST systemsup to $74,943/day (40 CFR 19.4, 2025)40 CFR 280.30
Corrosion Protection TestingEvery 3 years (all systems); impressed-current rectifiers checked every 60 daysup to $74,943/day (40 CFR 19.4, 2025)40 CFR 280.31
Release ReportingWithin 24 hours of discoveryup to $74,943/day (40 CFR 19.4, 2025)40 CFR 280.50
UST Registration/NotificationWithin 30 days of bringing the tank into useup to $29,980 per tank/day (40 CFR 19.4, 2025)40 CFR 280.22

Connecticut State Requirements

RequirementDeadlineFrequencyPenalty
Registration RenewalAnnuallyAnnual$1,000/day
Release DetectionMonthlyMonthly$1,000/day
Tightness TestingEvery 5 years5 years$1,000/day

Penalties, Cleanup Fund, Training, Fees & Inspectors

State-specific figures for Connecticut are being re-verified against Connecticut Department of Energy and Environmental Protection, Storage Tank & PCB Enforcement Unit – Underground Storage Tank Program sources and are not shown until confirmed.

This covers maximum penalties, cleanup fund limits and eligibility, operator training intervals and approved providers, registration and annual tank fees, and inspector requirements. Federal requirements above still apply in every state. For current state figures, contact the program directly:

Connecticut Department of Energy and Environmental Protection, Storage Tank & PCB Enforcement Unit – Underground Storage Tank Program · (860) 424-3374

Disclaimer: This guide is based on published Connecticut regulations. Requirements change — always verify current obligations with the CT DEEP.