UST Check → counties → Illinois → Clay
Underground storage tanks & leak sites in Clay County, IL
Every figure below is from EPA UST Finder — the EPA-compiled national registry of state-reported underground storage tanks — county aggregates as published by EPA.
66registered tank facilities
33open tanks
144closed tanks
48leak incidents on record
8cleanups still open
8 leak cleanups in
Clay County are still open — the state has not closed the case.
An open cleanup near a property you're buying or lending on is a findable, checkable fact: it appears in a
per-address screen with distance and the registry record.
Largest registered facilities
By open-tank count, from the facility-level registry. Every fact is attributed to the EPA record (linked ID); something wrong — use the correction path in the footer and we'll fix or remove it promptly.
| Facility | City | Open / closed tanks | Status | EPA record |
|---|---|---|---|---|
| South Central FS, Inc. | Flora | 12 / 0 | Open UST(s) | IL7043916 |
| Hucks #103 | Flora | 4 / 2 | Open UST(s) | IL7021676 |
| Clay City Citgo | Clay City | 4 / 0 | Open UST(s) | IL7021609 |
| Mach 1 Food Shop | Flora | 4 / 0 | Open UST(s) | IL7044609 |
| Xenia Citgo | Xenia | 3 / 3 | Open UST(s) | IL7021606 |
| Caseys General Store #1666 | Louisville | 2 / 0 | Open UST(s) | IL7030335 |
| Casey's General Store | Flora | 2 / 0 | Open UST(s) | IL7039401 |
| Casey's General Store #2557 | Clay City | 2 / 0 | Open UST(s) | IL7042499 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Knapp Oil Company, Inc. | Xenia | 2017-12-11 | Gasoline | IL250305007_20171134 |
| CountryMark Refining & Logistics, LLC | Flora | 2012-08-16 | Gasoline Diesel | IL250105070_20120856 |
| Louisville Service Station | Louisville | 2010-02-04 | Gasoline Diesel | IL250205005_20100119 |
| Flora, City of | Flora | 2002-05-28 | Diesel | IL250105053_20020743 |
| Economart | Flora | 2000-11-02 | Gasoline | IL250105041_20002113 |
| Clay City, Village of | Clay City | 1999-08-30 | Gasoline | IL250055009_992042 |
What this means if you're buying or lending here
- "Closed" ≠ clean. A closed tank was taken out of service per the registry — many were closed without soil testing, especially before the late 1990s.
- The registry is incomplete by design. Tanks removed before 1986 and most residential heating-oil tanks were never registered. A county with 66 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 8 cases in this county are still open; contamination may still be under investigation or remediation — distance from a specific parcel is what matters, and that's a per-address question.
Screen a specific property
This page covers the county. A purchase or loan decision needs the registry around one address: registered tanks at the parcel, every facility within 500 and 1,500 ft, leak cleanups with status and distance — each line cited to the official record.
Screen an address — $49 How it worksThis is a screen of EPA-registered tank and leak records, not an environmental site assessment. State registries are incomplete by design: tanks removed before 1986 and most residential heating-oil tanks were never registered, so a clean screen cannot prove the absence of a tank. "Closed" means a tank was taken out of service per the registry — it does not certify that no contamination remains.
source: EPA UST Finder EPA data vintage 2024-12-04 computed 2026-06-12