Macoupin County, IL
The federal environmental record for Macoupin County (population 44,018): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
1
federal cleanup sites
2
PFAS-detecting water systems
2
TRI facilities
39
open tank releases
Drinking water: PFAS testing
Public water systems serving Macoupin 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 |
|---|---|---|
| STAUNTON IL1171050 | PFBA: 5.3 ng/L | detected |
| BRIGHTON IL1174160 | PFBA: 23 ng/L PFPeA: 4.8 ng/L PFHxA: 4.7 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
2 facilities in Macoupin filed TRI reports for 2024, totalling 0 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| PRAIRIE FARMS DAIRY INC | CARLINVILLE | - | 0 lb |
| MENNEL MILLING CO OF ILLINOIS | MOUNT OLIVE | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 182 tank facilities in Macoupin: 95 tanks in service and 396 closed. 133 fuel releases are on record, of which 39 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Macoupin as Zone 2, moderate predicted indoor radon (2 to 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 Macoupin, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- GIRARD CARBON TETRACHLORIDE SPILLGIRARD