Skagit County, WA
The federal environmental record for Skagit County (population 131,417): 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
1
PFAS-detecting water systems
12
TRI facilities
83
open tank releases
Drinking water: PFAS testing
Public water systems serving Skagit 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 |
|---|---|---|
| SKAGIT COUNTY PUD 1 JUDY RES WA5379500 | PFBA: 21.1 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
12 facilities in Skagit filed TRI reports for 2024, totalling 461k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| HF SINCLAIR PUGET SOUND REFINING LLC | ANACORTES | Diethanolamine, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 240k lb |
| TESORO REFINING & MARKETING CO LLC | ANACORTES | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), 1,2,4-Trimethylbenzene | 174k lb |
| DAKOTA CREEK INDUSTRIES INC. | ANACORTES | Xylene (mixed isomers) | 13k lb |
| FREDONIA GENERATING FACILITY | MOUNT VERNON | Ammonia | 11k lb |
| CHEMTRADE SOLUTIONS LLC | ANACORTES | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 7k lb |
| JANICKI INDUSTRIES INC | SEDRO WOOLLEY | Styrene, Diisocyanates | 5k lb |
| SPI BURLINGTON | MOUNT VERNON | Ammonia, Dioxin and dioxin-like compounds | 5k lb |
| PACIFIC WOODTECH | BURLINGTON | Diisocyanates | 4k lb |
| WILBUR ELLIS MT VERNON | MOUNT VERNON | Ammonia | 1k lb |
| PERDUE FOODS - MOUNT VERNON PROCESSING PLANT | MOUNT VERNON | Peracetic acid | 1k lb |
| HALLMARK REFINING CORP | MOUNT VERNON | - | 0 lb |
| AIR LIQUIDE HYDROGEN PLANT | ANACORTES | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 392 tank facilities in Skagit: 202 tanks in service and 884 closed. 84 fuel releases are on record, of which 83 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Skagit 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 Skagit, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CUSTOM PLYWOOD MILLANACORTES
- PORT OF ANACORTES: DAKOTA CREEK INDUSTRIESANACORTES
- SHELL OIL COANACORTES
- USDOHS CG BURROWS ISLAND LIGHT STATIONANACORTES