Warren County, OH
The federal environmental record for Warren County (population 252,148): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
9
federal cleanup sites
6
PFAS-detecting water systems
22
TRI facilities
42
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Peters Cartridge Factory | Kings Mills | on the NPL | 09/18/2012 |
Drinking water: PFAS testing
Public water systems serving Warren 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 |
|---|---|---|
| FRANKLIN PUBLIC WATER SYSTEM OH8300412 | PFOS: 4.1 ng/L | above final limit |
| WESTERN WATER COMPANY OH8300512 | PFOS: 14.1 ng/L | above final limit |
| SPRINGBORO PWS OH8301412 | PFOA: 6.9 ng/L PFOS: 5.7 ng/L PFBS: 4.2 ng/L | above final limit |
| KINGS ISLAND PWS OH8345615 | PFOS: 28.9 ng/L PFBA: 8.2 ng/L PFPeA: 6.8 ng/L | above final limit |
| LEBANON CITY OH8304112 | PFPeA: 4.5 ng/L | detected |
| WARREN CO. SOCIALVILLE PWS OH8304203 | PFPeA: 6.9 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
22 facilities in Warren filed TRI reports for 2024, totalling 147k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| MAUSER - MASON | MASON | Certain glycol ethers, sec-Butyl alcohol | 76k lb |
| ADVICS MANUFACTURING OHIO INC | LEBANON | Zinc compounds, Nitric acid | 41k lb |
| GENERAL DYNAMICS (GD-OTS) | SPRINGBORO | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid | 16k lb |
| SUNSTAR ENGINEERING AMERICAS INC. AUTOMOTIVE DIV | SPRINGBORO | Zinc compounds, Diisononyl Phthalates (DINP) | 3k lb |
| MIDMARK CORP | LEBANON | Styrene | 3k lb |
| MITSUBISHI ELECTRIC AUTOMOTIVE AMERICA INC. | MASON | Aluminum (fume or dust), Styrene | 2k lb |
| FAURECIA EMISSIONS CONTROL TECHNOLOGY | FRANKLIN | Chromium | 2k lb |
| HIGH CONCRETE GROUP LLC-SPRINGBORO | SPRINGBORO | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1k lb |
| PHARMACIA HEPAR LLC | FRANKLIN | Methanol | 807 lb |
| L3HARRIS CINCINNATI ELECTRONICS CORP | MASON | Lead | 460 lb |
| FLINT GROUP PACKAGING INKS N.A. CORP | LEBANON | Certain glycol ethers, Toluene | 450 lb |
| CINCINNATI FAN & VENTILATOR CO | MASON | Chromium | 262 lb |
| HARRIS PRODUCTS GROUP | MASON | Copper, Silver | 215 lb |
| FECON LLC | LEBANON | Manganese, Copper | 60 lb |
| THE HARTZ MOUNTAIN CORP | PLEASANT PLAIN | Phenothrin, Tetrachlorvinphos | 40 lb |
| INX INTERNATIONAL INK CO | LEBANON | Certain glycol ethers | 23 lb |
| SUNSTAR ENGINEERING AMERICAS INC. MOTORCYCLE DIV | FRANKLIN | Diisononyl Phthalates (DINP) | 19 lb |
| FERCO TECH | FRANKLIN | Nickel | 3 lb |
| ATLAS ROOFING CORP | FRANKLIN | Polycyclic aromatic compounds | 1 lb |
| SONOCO FLEXIBLE PACKAGING | FRANKLIN | - | 0 lb |
| GMI COS INC | LEBANON | - | 0 lb |
| SUN CHEMICAL CORP | FRANKLIN | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 307 tank facilities in Warren: 301 tanks in service and 683 closed. 412 fuel releases are on record, of which 42 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Warren 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 Warren, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- COAL CITY TANKER RELEASEWILMINGTON
- FRANKLIN OHIO RESIDENTIAL MERCURY SPILLFRANKIN
- FRANKLIN VOC PLUMEFRANKLIN
- JACAMAR EMERGENCY RESPONSESPRINGBORO
- KINGS MILLS LEAD SITEKINGS MILLS
- KINGS MILLS MILITARY RESERVATIONHAMILTON TOWNSHIP
- MASON ROAD LEAD SITEMASON
- PETERS CARTRIDGE FACTORYKINGS MILLS
- STRIKER ROAD DRUM SITEMAINEVILLE