Wasco County, OR
The federal environmental record for Wasco County (population 26,333): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
6
federal cleanup sites
0
PFAS-detecting water systems
3
TRI facilities
19
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Martin-Marietta Aluminum Co. | The Dalles | deleted | 06/10/1986 |
| Union Pacific Railroad Co. Tie-Treating Plant | The Dalles | on the NPL | 08/30/1990 |
Drinking water: PFAS testing
No public water system serving Wasco reported a PFAS detection in the UCMR5 national testing round. Systems serving under 3,300 people were only sampled in part, so absence from this table is not proof of absence in the water.
Facilities reporting toxic releases (2024)
3 facilities in Wasco filed TRI reports for 2024, totalling 7k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| AMERITIES WEST LLC | THE DALLES | Copper And Copper Compounds, Creosote | 6k lb |
| HOOD RIVER SAND GRAVEL & READY MIX - THE DALLES | THE DALLES | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1k lb |
| HYDRO EXTRUSION USA LLC | THE DALLES | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 137 tank facilities in Wasco: 65 tanks in service and 355 closed. 85 fuel releases are on record, of which 19 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Wasco 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 - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Wasco, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- AMERITIESTHE DALLES
- BPA CELILO SUBSTATION AND CONVERTER STATIONTHE DALLES
- NORTHWEST ALUMINUM CO SITETHE DALLES
- THE DALLES DAM USACETHE DALLES
- THE DALLES ROUNDHOUSE (FORMER)THE DALLES
- UNION PACIFIC RAILROAD CO. TIE-TREATING PLANTTHE DALLES