Lyon County, KY
The federal environmental record for Lyon County (population 9,101): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
0
federal cleanup sites
1
PFAS-detecting water systems
1
TRI facilities
0
open tank releases
Drinking water: PFAS testing
Public water systems serving Lyon 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 |
|---|---|---|
| LYON COUNTY WATER DISTRICT KY0720933 | PFBA: 51.2 ng/L PFOS: 4.4 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
1 facilities in Lyon filed TRI reports for 2024, totalling 16 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| MARATHON PETROLEUM CO - KUTTAWA KY TERMINAL | KUTTAWA | Naphthalene, Lead And Lead Compounds | 16 lb |
Underground fuel tanks
EPA's UST Finder records 49 tank facilities in Lyon: 25 tanks in service and 118 closed. 40 fuel releases are on record, of which 0 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Lyon 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 - $39