Clallam County, WA
The federal environmental record for Clallam County (population 77,616): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
8
federal cleanup sites
2
PFAS-detecting water systems
4
TRI facilities
39
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Makah Reservation Warmhouse Beach Dump | Neah Bay | on the NPL | 12/12/2013 |
Drinking water: PFAS testing
Public water systems serving Clallam 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 |
|---|---|---|
| PORT ANGELES COMPOSITE WA5343296 | PFBA: 5 ng/L | detected |
| SEQUIM CITY OF WA5377620 | PFBS: 5.8 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
4 facilities in Clallam filed TRI reports for 2024, totalling 14k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| MCKINLEY PAPER CO. - WASHINGTON MILL | PORT ANGELES | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 12k lb |
| PACIFIC NORTHWEST NATIONAL LABORATORY - SEQUIM CAMPUS | SEQUIM | Lead | 2k lb |
| WESTPORT LLC 50 METER FACILITY | PORT ANGELES | Styrene | 126 lb |
| INTERFOR US - PORT ANGELES | PORT ANGELES | Lead | 34 lb |
Underground fuel tanks
EPA's UST Finder records 284 tank facilities in Clallam: 148 tanks in service and 688 closed. 45 fuel releases are on record, of which 39 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Clallam 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 Clallam, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- 40 WEST PALMER STREETSEQUIM
- E-CYCLE NWSEQUIM
- MAKAH RESERVATION WARMHOUSE BEACH DUMPNEAH BAY
- MIDWAY METALSSEQUIM
- RAYONIER INC 13TH & M ST LANDFILLPORT ANGELES
- RAYONIER INC MT PLEASANT LANDFILLPORT ANGELES
- US DA FS SNIDER WORK CENTER OLYMPICPORT ANGELES
- US DOE BPA PORT ANGELES SUBSTATIONPORT ANGELES