MO8,415 active USTs

Missouri Gas Station Compliance Guide

Everything fuel station operators in Missouri need to know about UST compliance, managed by the Missouri Department of Natural Resources, Environmental Remediation Program – Underground Storage Tanks Section.

State Agency

Missouri Department of Natural Resources, Environmental Remediation Program – Underground Storage Tanks Section

DNR Tanks Section

Phone: (573) 751-6822

Email: tanks-compliance@dnr.mo.gov

Visit MoDNR 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

Missouri State Requirements

RequirementDeadlineFrequencyPenalty
Tank RegistrationPrior to operationOne-time$10,000
Annual FeeAnnuallyAnnual$500/month
Release DetectionMonthlyMonthly$10,000/day

Penalties, Cleanup Fund, Training, Fees & Inspectors

State-specific figures for Missouri are being re-verified against Missouri Department of Natural Resources, Environmental Remediation Program – Underground Storage Tanks Section 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:

Missouri Department of Natural Resources, Environmental Remediation Program – Underground Storage Tanks Section · (573) 751-6822

Disclaimer: This guide is based on published Missouri regulations. Requirements change — always verify current obligations with the MoDNR.