UST Check → counties → Illinois → DeKalb

Underground storage tanks & leak sites in DeKalb 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.

273registered tank facilities

164open tanks

585closed tanks

204leak incidents on record

55cleanups still open

55 leak cleanups in DeKalb 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.

Open leak cleanups — most recently reported

Site	City	Reported	Substance	EPA record
PPRE, LLC	Sandwich	2016-07-28	Unleaded	IL370105051_20160671
Lueken, Becky	Sandwich	2014-08-08	Gasoline	IL374855045_20140920
Oakland & Sycamore Road Development LLC	Sycamore	2011-05-26	UsedOil	IL370555038_20110542
De Kalb Forge Co.	De Kalb	2009-07-13	FuelOil	IL370105013_20090748
De Kalb Forge Company	De Kalb	2009-06-15	FuelOil	IL370105013_20090642
De Kalb Forge Company	De Kalb	2009-04-29	Gasoline FuelOil	IL370105013_20090418

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 273 registered facilities has an unknown number of unregistered ones.
Open cleanups are the headline. 55 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 works

This 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