Baker, 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.
Environmental data for Baker in Oregon · Population: 16,796
TRI sites such as Ash Grove Cement Co; SDWIS systems such as BAKER CITY; HUNTINGTON, CITY OF; HAINES, CITY OF anchor Baker, OR's EPA extract. Derived burden score 30/100 (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 Baker include RICHLAND, CITY OF; WESTERN HEIGHTS WATER COMPANY; IDAHO POWER-OXBOW VILLAGE, while Ash Grove Cement Co leads reported TRI pounds among local Form R filers. AQS median AQI 28 / peak 155 in 2024.
Burden score 30/100 (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 Baker -- 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 Baker, OR: EPA TRI 2023 reporting year
Same facilities, both years
+40.0%
1 facilities that filed in 2022 and 2023
Whole inventory
+40.0%
16.5 thousand lb → 23.1 thousand lb, every facility that filed
- Baker, OR's total reported releases rose from 16.5 thousand lb in 2022 to 23.1 thousand lb in 2023, based on EPA TRI filings.
- Baker, OR's air releases rose from 14.2 thousand lb in 2022 to 21.1 thousand lb in 2023, based on EPA TRI filings.
- Baker, OR's off-site transfers fell from 2.3 thousand lb in 2022 to 1.9 thousand 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 | 279 (76%) | 84 | 1 | 155 |
| 2023 | 301 (83%) | 62 | 0 | 83 |
| 2022 | 283 (78%) | 79 | 3 | 124 |
| 2021 | 271 (74%) | 88 | 1 | 155 |
| 2020 | 282 (77%) | 77 | 2 | 225 |
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 (8)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| BAKER CITY | 10,349 | 0 |
| HUNTINGTON, CITY OF | 510 | 0 |
| HAINES, CITY OF | 395 | 0 |
| HALFWAY, CITY OF | 346 | 0 |
| RICHLAND, CITY OF | 165 | 21 |
| WESTERN HEIGHTS WATER COMPANY | 90 | 2 |
| IDAHO POWER-OXBOW VILLAGE | 75 | 2 |
| UNITY, CITY OF | 40 | 5 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Ash Grove Cement Co | 71.7K lbs |
Cities in Baker (8)
Frequently Asked Questions
What is the environmental risk level in Baker, Oregon? ▼
Are there Superfund sites in Baker? ▼
How many toxic release facilities are in Baker? ▼
What is the air quality in Baker? ▼
Is the drinking water safe in Baker? ▼
What environmental agencies cover Baker? ▼
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.