Siskiyou County, CA
The federal environmental record for Siskiyou County (population 42,905): 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
7
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Blue Ledge Mine | Rogue River - Siskiyou National Forest | on the NPL | 09/16/2011 |
| J.H. Baxter & Co. | Weed | on the NPL | 10/04/1989 |
Drinking water: PFAS testing
No public water system serving Siskiyou 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 Siskiyou filed TRI reports for 2024, totalling 496 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| ROSEBURG FOREST PRODUCTS CO. - WEED FACILITY | WEED | Lead compounds, Dioxin and dioxin-like compounds | 496 lb |
| TIMBER PRODUCTS CO. | YREKA | - | 0 lb |
| PACIFIC STATES TREATING | WEED | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 32 tank facilities in Siskiyou: 111 tanks in service and 0 closed. 199 fuel releases are on record, of which 7 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Siskiyou 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 Siskiyou, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BLUE LEDGE MINESEIAD VALLEY
- J.H. BAXTER & CO.WEED
- MT. HEBRON WORK CENTERMACDOEL
- SISKON MINESOMES BAR
- SOUTHERN PACIFIC TRANSPORTATION CODUNSMUIR
- STATELINE DUMP SITETULELAKE