Mason County, KY
The federal environmental record for Mason County (population 16,930): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
3
federal cleanup sites
3
PFAS-detecting water systems
5
TRI facilities
0
open tank releases
Drinking water: PFAS testing
Public water systems serving Mason 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 |
|---|---|---|
| BUFFALO TRAIL WATER ASSOC KY0810046 | 6:2 FTS: 22 ng/L PFBA: 6.8 ng/L PFPeA: 5 ng/L | above final limit |
| MAYSVILLE UTILITY COMMISSION KY0810275 | PFPeA: 8.3 ng/L | detected |
| WESTERN LEWIS RECTORVILLE WATER DISTRICT KY0810366 | HFPO-DA: 7.3 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
5 facilities in Mason filed TRI reports for 2024, totalling 1.4M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| SPURLOCK POWER STATION | MAYSVILLE | Manganese And Manganese Compounds, Barium And Barium Compounds | 1.4M lb |
| GREEN TOKAI CO - MAYSVILLE | MAYSVILLE | Chromium | 3k lb |
| INTERNATIONAL PAPER | MAYSVILLE | Lead, Mercury | 386 lb |
| CARMEUSE LIME & STONE MAYSVILLE FACILITY | MAYSVILLE | Lead compounds | 129 lb |
| WALD LLC | MAYSVILLE | Lead And Lead Compounds | 45 lb |
Underground fuel tanks
EPA's UST Finder records 110 tank facilities in Mason: 65 tanks in service and 237 closed. 83 fuel releases are on record, of which 0 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Mason 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 Mason, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CARGILL FIREMAYSVILLE
- EPT CUTTING FLUID SPILLMAYSVILLE
- HAYSWOOD HOSPITALMAYSVILLE