Jefferson County, WA
The federal environmental record for Jefferson County (population 33,714): 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
1
PFAS-detecting water systems
1
TRI facilities
25
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Port Hadlock Detachment (USNAVY) | Indian Island | deleted | 05/31/1994 |
Drinking water: PFAS testing
Public water systems serving Jefferson 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 |
|---|---|---|
| QUIMPER WA5305783 | PFBS: 3.1 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
1 facilities in Jefferson filed TRI reports for 2024, totalling 417k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| PORT TOWNSEND PAPER CORP | PORT TOWNSEND | Methanol, Ammonia | 417k lb |
Underground fuel tanks
EPA's UST Finder records 124 tank facilities in Jefferson: 58 tanks in service and 295 closed. 25 fuel releases are on record, of which 25 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Jefferson as Zone 3, the lowest predicted indoor radon (under 2 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 Jefferson, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CHIMACUM CONTAINER SITECHIMACUM
- PORT HADLOCK DETACHMENT (USNAVY)INDIAN ISLAND
- PRICE STREET ASBESTOSPORT HADLOCK-IRONDALE