Marshall County, WV
The federal environmental record for Marshall County (population 29,405): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
3
federal cleanup sites
2
PFAS-detecting water systems
13
TRI facilities
20
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Hanlin-Allied-Olin | Moundsville | on the NPL | 07/22/1999 |
Drinking water: PFAS testing
Public water systems serving Marshall 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 |
|---|---|---|
| MARSHALL COUNTY PSD 1 WV3302606 | PFHxS: 4.5 ng/L PFBS: 3.7 ng/L | detected |
| MARSHALL COUNTY PSD 4 WV3302609 | PFBS: 10.3 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
13 facilities in Marshall filed TRI reports for 2024, totalling 1.7M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| AMERICAN ELECTRIC POWER KAMMER/MITCHELL PLANT | MOUNDSVILLE | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 925k lb |
| COVESTRO | PROCTOR | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Zinc compounds | 593k lb |
| MARSHALL COUNTY COAL RESOURCES INC. | MOUNDSVILLE | Lead, Mercury | 45k lb |
| WESTLAKE NATRIUM LLC | PROCTOR | Ammonia, Mercury compounds | 39k lb |
| NATRIUM GAS PLANT | PROCTOR | Benzene, n-Hexane | 15k lb |
| WILLIAMS OHIO VALLEY MIDSTREAM - MOUNDSVILLE FRACTIONATION P | MOUNDSVILLE | n-Hexane, Cyclohexane | 14k lb |
| ELEMENTIS SPECIATIES INC | PROCTOR | Toluene, Ammonia | 10k lb |
| WILLIAMS OHIO VALLEY MIDSTREAM - FORT BEELER GAS PROCESSING | CAMERON | n-Hexane, Xylene (mixed isomers) | 10k lb |
| MAJORSVILLE | DALLAS | n-Hexane | 6k lb |
| OAK GROVE PLANT | MOUNDSVILLE | n-Hexane, Ethylbenzene | 4k lb |
| CERTAINTEED GYPSUM | PROCTOR | Mercury, Lead compounds | 63 lb |
| HIGHLINE WARREN LLC - WARREN NORTHEAST | GLEN DALE | Zinc compounds | 8 lb |
| PVS TECHNOLOGIES -NATRIUM | NEW MARTINSVILLE | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 128 tank facilities in Marshall: 49 tanks in service and 341 closed. 64 fuel releases are on record, of which 20 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Marshall 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 Marshall, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- GLENDALE TCE SITEGLEN DALE
- HANLIN-ALLIED-OLINMOUNDSVILLE
- MOUNDSVILLE ZINCMOUNDSVILLE