Franklin County, MO
The federal environmental record for Franklin County (population 106,404): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
3
Superfund NPL sites
7
federal cleanup sites
2
PFAS-detecting water systems
19
TRI facilities
14
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Oak Grove Village Well | Oak Grove Village | on the NPL | 09/05/2002 |
| Riverfront | New Haven | on the NPL | 12/01/2000 |
| Sporlan Valve Plant #1 | Washington | on the NPL | 05/15/2019 |
Drinking water: PFAS testing
Public water systems serving Franklin 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 |
|---|---|---|
| CIRCLE C MHP MO6048106 | PFHxS: 7.3 ng/L PFOS: 5.9 ng/L | above final limit |
| ST CLAIR PWS MO6010708 | PFHxS: 5.6 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
19 facilities in Franklin filed TRI reports for 2024, totalling 1.1M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| AMEREN MISSOURI LABADIE ENERGY CENTER | LABADIE | Barium And Barium Compounds, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 981k lb |
| HENNIGES AUTOMOTIVE | NEW HAVEN | Zinc compounds, Sodium nitrite | 45k lb |
| M & R PLATING | WASHINGTON | Zinc compounds, Manganese | 39k lb |
| RTI ADVANCED FORMING INC. | WASHINGTON | Sodium nitrite, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 36k lb |
| PARKER HANNIFIN SPORLAN DIV - PLANT #3 | WASHINGTON | Copper, Lead | 8k lb |
| PARKER HANNIFIN SPORLAN DIV - PLANT #1 | WASHINGTON | Copper | 4k lb |
| PLZ CORP. | SAINT CLAIR | n-Hexane, Cyclohexane | 3k lb |
| AEROFIL TECHNOLOGY INC | SULLIVAN | Toluene, Xylene (mixed isomers) | 3k lb |
| PLAZE INC | PACIFIC | Methanol, Sodium nitrite | 2k lb |
| DAP GLOBAL INC. | PACIFIC | Tris(1,3-dichloro-2-propyl) phosphate, Diisocyanates | 2k lb |
| PLZ CORP. | SAINT CLAIR | n-Hexane, Toluene | 187 lb |
| MERAMEC GROUP | SULLIVAN | Diisocyanates, Ethylene glycol | 182 lb |
| ATRO LLC | SAINT CLAIR | Diisocyanates | 5 lb |
| PACIFIC DAIRY SOLUTIONS | PACIFIC | Nitric acid | 5 lb |
| HEAT & CONTROL INC. | UNION | - | 0 lb |
| SIESCO VALLEY SCREW PRODUCTS | UNION | - | 0 lb |
| ACE MANUFACTURING & PARTS CO | SULLIVAN | - | 0 lb |
| TRUE MANUFACTURING CO INC | PACIFIC | - | 0 lb |
| GATEWAY EXTRUSIONS LTD. | UNION | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 255 tank facilities in Franklin: 207 tanks in service and 551 closed. 106 fuel releases are on record, of which 14 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Franklin 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 Franklin, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CHLANDA PROPERTYGRAY SUMMIT
- GOOD HOPE ROAD DRUMS SITE C O US EPA REGION 7BERGER
- HIGHWAY AF WELLSSULLIVAN
- OAK GROVE VILLAGE WELLSULLIVAN
- PARKER HANNIFIN CORP SPORLAN VALVE DIV PLANT 1WASHINGTON
- RIVERFRONTNEW HAVEN
- US TECHNOLOGY CORPBERGER