DE2,100 active USTs
Delaware Gas Station Compliance Guide
Everything fuel station operators in Delaware need to know about UST compliance, managed by the Delaware Dept. of Natural Resources & Environmental Control.
State Agency
Delaware Dept. of Natural Resources & Environmental Control
DNREC Tank Management Program
Compliance Deadlines
Federal EPA Requirements
| Requirement | Deadline | Penalty | CFR |
|---|---|---|---|
| Monthly Release Detection | Ongoing — monthly | $11,524/day | 40 CFR 280.41 |
| Annual Walkthrough Inspection | Annually by Oct 13 | $59,017/day | 40 CFR 280.36 |
| Operator Training (Class A/B/C) | Within 30 days of designation | $25,000 | 40 CFR 280.242 |
| Financial Responsibility | Continuous | $11,524/day | 40 CFR 280.90 |
| Spill/Overfill Prevention Equipment | Required at all UST systems | $59,017/day | 40 CFR 280.30 |
| Corrosion Protection Testing | Every 3 years (impressed current) / 5 years (other) | $11,524/day | 40 CFR 280.31 |
| Release Reporting | Within 24 hours of discovery | $59,017/day | 40 CFR 280.50 |
| UST Registration/Notification | Within 30 days of installation | $11,524/day | 40 CFR 280.22 |
Delaware State Requirements
| Requirement | Deadline | Frequency | Penalty |
|---|---|---|---|
| Tank Registration | Prior to operation | One-time | $10,000 |
| Annual Fee | Annually | Annual | $500/month |
| Release Detection | Monthly | Monthly | $10,000/day |
Penalties & Enforcement
Max Daily Penalty
$10,000
Max Per Violation
$25,000
Criminal Penalties
No
Cleanup Fund
Underground Storage Tank Trust Fund
Coverage Limit
$1,000,000
Deductible
$15,000
Eligible
Yes
Operator Training
Class A
Required
Class B
Required
Class C
Required
Online Accepted
Yes
Refresher interval: 3 years
Approved providers: DNREC-approved
Registration & Fees
Annual Tank Fee
$130/tank
Registration Fee
$75
Late Penalty
$500/month
Find a UST Inspector
Tank Management Section
Division of Waste & Hazardous Substances
Phone: (302) 395-2500
Email: dnrec.tanks@delaware.gov
Third-party inspectors accepted
Find Inspectors →Disclaimer: This guide is based on published Delaware regulations. Requirements change — always verify current obligations with the DNREC.