Jefferson County, MO
The federal environmental record for Jefferson County (population 231,230): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
13
federal cleanup sites
4
PFAS-detecting water systems
12
TRI facilities
23
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Minker/Stout/Romaine Creek | Imperial | on the NPL | 09/08/1983 |
| Southwest Jefferson County Mining | Jefferson County | on the NPL | 09/23/2009 |
Drinking water: PFAS testing
Public water systems serving Jefferson 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 |
|---|---|---|
| CRYSTAL CITY PWS MO6010198 | PFBA: 22 ng/L | detected |
| FESTUS PWS MO6010276 | PFBA: 9.2 ng/L | detected |
| HERCULANEUM PWS MO6010359 | PFBA: 9.1 ng/L | detected |
| JEFFERSON COUNTY PWSD 6 MO6024298 | PFPeA: 3.9 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
12 facilities in Jefferson filed TRI reports for 2024, totalling 240k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| METAL CONTAINER CORP - ARNOLD CAN PLANT | ARNOLD | Certain glycol ethers, n-Butyl alcohol | 143k lb |
| H-J ENTERPRISES INC | HIGH RIDGE | Copper, Lead | 39k lb |
| SINCLAIR & RUSH INC. | ARNOLD | Mixture | 24k lb |
| RIVER CEMENT CO (DBA BUZZI UNICEM USA) | FESTUS | Ammonia, Manganese compounds | 21k lb |
| SUPERIOR INDUSTRIAL SOLUTIONS INC. | ARNOLD | Toluene, Styrene | 6k lb |
| AMEREN MISSOURI RUSH ISLAND ENERGY CENTER | FESTUS | Hydrogen fluoride, Barium And Barium Compounds | 6k lb |
| PVS DX INC. | FESTUS | Chlorine | 151 lb |
| ARDAGH GLASS INC | PEVELY | Lead And Lead Compounds | 101 lb |
| ENGINEERED COIL CO. DBA DRS MARLO COIL | HIGH RIDGE | Copper, Chromium | 46 lb |
| DDP SPECIALTY ELECTRONIC MATERIALS US LLC | PEVELY | - | 0 lb |
| CARONDELET FOUNDRY CORP | PEVELY | - | 0 lb |
| MASTERCHEM INDUSTRIES (BEHR LLC -- ST LOUIS) | IMPERIAL | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 299 tank facilities in Jefferson: 279 tanks in service and 638 closed. 123 fuel releases are on record, of which 23 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Jefferson 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 Jefferson, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BUTCHER BRANCH ROAD DRUMSHILLSBORO
- DEAD END DRUMDE SOTO
- DESOTO ABANDONED CONTAINERSDESOTO
- HEMATITE RADIOACTIVEHEMATITE
- HERCULANEUM - LEAD SMELTER SITEHERCULANEUM
- LEE & MAMMOTH MINESDESOTO
- MINKER/STOUT/ROMAINE CREEKIMPERIAL
- PCE CASTLE ACRESFESTUS
- SOUTHEAST MISSOURI LEAD HAUL ROADSHILLSBORO
- SOUTHWEST JEFFERSON COUNTY MININGJEFFERSON COUNTY
- STOUT RESIDENCEIMPERIAL
- TIMES BEACHTIMES BEACH
- VALLES MINES COMPANYVALLES MINES