Knox County, IL
The federal environmental record for Knox County (population 48,411): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
5
federal cleanup sites
2
PFAS-detecting water systems
3
TRI facilities
47
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Galesburg/Koppers Co. | Galesburg | on the NPL | 09/08/1983 |
Drinking water: PFAS testing
Public water systems serving Knox with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| ABINGDON IL0950050 | PFBA: 50 ng/L PFPeA: 10 ng/L PFOA: 9.4 ng/L | above final limit |
| GALESBURG IL0950200 | PFBA: 85 ng/L PFPeA: 15 ng/L PFOA: 14 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
3 facilities in Knox filed TRI reports for 2024, totalling 48k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| NATIONAL COATINGS INC | GALESBURG | Certain glycol ethers, 1,2,4-Trimethylbenzene | 37k lb |
| KOPPERS INC. (GALESBURG IL) | GALESBURG | Creosote, Polycyclic aromatic compounds | 7k lb |
| GATES CORP | GALESBURG | Zinc compounds, Antimony compounds | 4k lb |
Underground fuel tanks
EPA's UST Finder records 227 tank facilities in Knox: 107 tanks in service and 447 closed. 142 fuel releases are on record, of which 47 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Knox as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Knox, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- ABINGDON POTTERYABINGDON
- GALESBURG RESIDENTIAL MERCURY SPILLGALESBURG
- GALESBURG/KOPPERS CO.GALESBURG
- GATES RUBBER COMPANYGALESBURG
- OUTBOARD MARINE CORPORATIONGALESBURG