# ECSU - North Heat Plant: 5 USTs permanently closed (66,500 gal, heating oil; diesel; gasoline) in Willimantic, CT

**Score:** 50/100

| Field | Value |
|---|---|
| Site | ECSU - North Heat Plant |
| DEEP facility ID | 163-9638 |
| Action | Tank permanently closed |
| Status | Permanently Closed |
| Dates | 2026-04-21 |
| Location | Willimantic, CT, 06226 |
| Tanks | 5 |
| Capacity (gallons) | 66500 |
| Substances | Heating Oil(on-site consumption); Diesel; Gasoline |
| Closure type | Tank was Removed From Ground |
| Tank construction | Coated & Cathodically Protected Steel (sti-P3); Fiberglass Reinforced Plastic |

## Why this score
- Tank taken out of service: removal, closure or replacement work.
- 66,500 gallons of capacity.

Source: Connecticut Department of Energy and Environmental Protection (DEEP) Underground Storage Tank Enforcement Summary (data.ct.gov) (https://data.ct.gov/d/utni-rddb). Last refreshed: 2026-11-04T06:08:35.566Z.
From the CT DEEP UST Enforcement Summary and UST Facility and Tank Details. A notice records what an inspector cited; most are resolved without penalty and status can change. Tank events use the registry's last-used and installation dates as reported by owners and may be updated late. Site level only; individual respondents, person-named facilities and street addresses are not shown. Verify with CT DEEP.