Douglas County, NV
The federal environmental record for Douglas County (population 49,545): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
4
federal cleanup sites
2
PFAS-detecting water systems
1
TRI facilities
3
open tank releases
Drinking water: PFAS testing
Public water systems serving Douglas 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 |
|---|---|---|
| GARDNERVILLE WATER COMPANY NV0000065 | PFBS: 8.6 ng/L PFOS: 4 ng/L PFHxS: 3.1 ng/L | detected |
| INDIAN HILLS GID NV0000355 | PFPeA: 5 ng/L PFHxA: 4.3 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
1 facilities in Douglas filed TRI reports for 2024, totalling 599 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| AERVOE LLC | GARDNERVILLE | n-Hexane | 599 lb |
Underground fuel tanks
EPA's UST Finder records 140 tank facilities in Douglas: 69 tanks in service and 291 closed. 93 fuel releases are on record, of which 3 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Douglas 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 Douglas, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- DOUGLAS HIGH SCHOOL MERCURY SPILLMINDEN
- DOUGLAS CO SAN LDFLGARDNERVILLE
- PAU WA LU MERCURYGARDNERVILLE
- VETA GRANDE MINING COGARDNERVILLE