Columbia, OR
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Columbia in Oregon · Population: 53,178
TRI sites such as Dyno Nobel- St.helens Plant; Pge Beaver Plant & Port Westward Plant; US Gypsum Co; SDWIS systems such as ST HELENS, CITY OF; SCAPPOOSE, CITY OF; MCNULTY WATER PUD anchor Columbia, OR's EPA extract. Derived burden score 43/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Columbia include ST HELENS, CITY OF; SCAPPOOSE, CITY OF; MCNULTY WATER PUD, while Dyno Nobel- St.helens Plant leads reported TRI pounds among local Form R filers. AQS median AQI 26 / peak 74 in 2024.
Burden score 43/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Columbia -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Columbia, OR: EPA TRI 2023 reporting year
Same facilities, both years
-6.1%
5 facilities that filed in 2022 and 2023
Whole inventory
-6.1%
6.8 million lb → 6.3 million lb, every facility that filed
- Columbia, OR's total reported releases fell from 6.8 million lb in 2022 to 6.3 million lb in 2023, based on EPA TRI filings.
- Columbia, OR's water releases fell from 175.1 thousand lb in 2022 to 75.8 thousand lb in 2023, based on EPA TRI filings.
- Columbia, OR's chemicals reported fell from 12 in 2022 to 10 in 2023, based on EPA TRI filings.
- Columbia, OR's air releases fell from 6.6 million lb in 2022 to 6.3 million lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 354 (97%) | 10 | 0 | 74 |
| 2023 | 329 (90%) | 34 | 2 | 115 |
| 2022 | 293 (81%) | 66 | 1 | 162 |
| 2021 | 319 (92%) | 26 | 0 | 66 |
| 2020 | 332 (91%) | 22 | 1 | 293 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Oregon, see the EPA's AirNow.gov.
Water Systems (39)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| ST HELENS, CITY OF | 13,410 | 1 |
| SCAPPOOSE, CITY OF | 8,710 | 3 |
| MCNULTY WATER PUD | 2,500 | 3 |
| CLATSKANIE, CITY OF | 2,188 | 0 |
| VERNONIA, CITY OF | 2,100 | 2 |
| WARREN WATER ASSOCIATION | 2,050 | 1 |
| COLUMBIA CITY MUN WATERWORKS | 1,995 | 3 |
| CITY OF RAINIER | 1,932 | 4 |
| WESTPORT WATER ASSOCIATION | 550 | 0 |
| WESTERN HILLS MH ESTATES | 375 | 12 |
| FISHHAWK LAKE RESERVE AND COMMUNITY | 350 | 1 |
| QUINCY WATER ASSOCIATION | 300 | 0 |
| WAUNA WATER DISTRICT | 188 | 0 |
| MIDLAND WATER ASSOCIATION | 160 | 28 |
| SIGLER COVE MARINA | 150 | 2 |
| FISCHERS PLACE MHP | 130 | 10 |
| COLUMBIA ACRES WATER ASSOC | 110 | 5 |
| LOST CREEK HEIGHTS WTR ASSOC | 100 | 0 |
| WESTPORT HEIGHTS | 90 | 0 |
| DEER VIEW COOPERATIVE | 90 | 0 |
| DEER ISLAND WATERWORKS | 90 | 11 |
| PARADISE MOORAGE | 90 | 1 |
| GOBLE WATER ASSOCIATION | 85 | 1 |
| COLUMBIA HILLS HOA | 84 | 0 |
| TAMARACK MOBILE HOME PARK | 80 | 1 |
| WAPATO MOORAGE ASSOCIATION | 74 | 1 |
| PRESCOTT, CITY OF | 70 | 6 |
| LAUREL RIDGE MHP | 70 | 1 |
| MARSHLAND WATER ASSOCIATION | 70 | 15 |
| DEER ISLAND HEIGHTS WS | 60 | 4 |
| DEER ISLAND VILLAGE MHP | 50 | 1 |
| CEDAR TREE MOBILE HOME PARK | 50 | 2 |
| DEER ISLAND VILLAGE MHP-FAWN LANE | 50 | 0 |
| J & M MOBILE HOME PARK | 45 | 5 |
| DIKESIDE MOORAGE | 45 | 0 |
| BERNDT CREEK WATER CORP | 45 | 1 |
| CROWN MOBILE HOME PARK | 42 | 2 |
| SWEDETOWN WATER ASSOC | 40 | 2 |
| WESTLAND WATER ASSOCIATION | 25 | 1 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Dyno Nobel- St.helens Plant | 32.0M lbs |
| 2 | Pge Beaver Plant & Port Westward Plant | 421.4K lbs |
| 3 | US Gypsum Co | 46 lbs |
| 4 | Conrad Wood Preserving Co | 0 lbs |
| 5 | Columbia Pacific Bio-Refinery | 0 lbs |
Cities in Columbia (8)
Frequently Asked Questions
What is the environmental risk level in Columbia, Oregon? ▼
Are there Superfund sites in Columbia? ▼
How many toxic release facilities are in Columbia? ▼
What is the air quality in Columbia? ▼
Is the drinking water safe in Columbia? ▼
What environmental agencies cover Columbia? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.