Cowlitz County, WA
The federal environmental record for Cowlitz County (population 112,864): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
2
federal cleanup sites
1
PFAS-detecting water systems
17
TRI facilities
55
open tank releases
Drinking water: PFAS testing
Public water systems serving Cowlitz 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 |
|---|---|---|
| WOODLAND CITY OF WA5398200 | PFBA: 23.4 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
17 facilities in Cowlitz filed TRI reports for 2024, totalling 2.2M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| WESTROCK LONGVIEW LLC | LONGVIEW | Methanol, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1.1M lb |
| NIPPON DYNAWAVE PACKAGING CO. | LONGVIEW | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methanol | 755k lb |
| NORTH PACIFIC PAPER CO LLC LONGVIEW | LONGVIEW | Methanol, Phenol | 280k lb |
| SKYLINE STEEL LLC-LONGVIEW | LONGVIEW | Manganese, Lead | 26k lb |
| LANXESS CORP KALAMA SITE | KALAMA | Toluene, Methanol | 25k lb |
| WESTLAKE US 2 LLC - LONGVIEW | LONGVIEW | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Chlorine | 10k lb |
| STEELSCAPE | KALAMA | Chromium compounds (except for chromite ore mined in the Transvaal Region), 1,2,4-Trimethylbenzene | 3k lb |
| GLACIER NORTHWEST INC LONGVIEW READY-MIX PLANT | LONGVIEW | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead | 988 lb |
| FOSTER POULTRY FARMS KELSO PLANT | KELSO | Peracetic acid | 885 lb |
| GLACIER NORTHWEST INC WOODLAND READY-MIX PLANT | WOODLAND | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead | 113 lb |
| SOLVAY CHEMICALS INC | LONGVIEW | Naphthalene, Nitric acid | 75 lb |
| FXI INC. - LONGVIEW | LONGVIEW | Toluene diisocyanate (mixed isomers) | 61 lb |
| WOODLAND USNR LLC | WOODLAND | Manganese, Chromium | 30 lb |
| HASA INC | LONGVIEW | Chlorine | 5 lb |
| OWENS-BROCKWAY GLASS CONTAINER INC - PLANT #02 | KALAMA | Lead compounds | 3 lb |
| KELSO RM | KELSO | Lead And Lead Compounds | 0 lb |
| INTERFOR LONGVIEW DIV | LONGVIEW | Lead compounds | 0 lb |
Underground fuel tanks
EPA's UST Finder records 356 tank facilities in Cowlitz: 206 tanks in service and 797 closed. 58 fuel releases are on record, of which 55 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Cowlitz 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 Cowlitz, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- SUNSET STORAGEKELSO
- WEYERHAEUSER COLONGVIEW