Umatilla, 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 Umatilla in Oregon · Population: 80,087
TRI sites such as Lamb Weston Inc.; Lakeside Foods Inc.; American Rock Products Hermiston; SDWIS systems such as HERMISTON, CITY OF; PENDLETON, CITY OF; UMATILLA, CITY OF anchor Umatilla, OR's EPA extract. Derived burden score 39/100 (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 Umatilla include PENDLETON, CITY OF; CTUIR PWD MISSION; ATHENA, CITY OF, while Lamb Weston Inc. leads reported TRI pounds among local Form R filers. AQS median AQI 38 / peak 117 in 2024.
Burden score 39/100 (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 Umatilla -- 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 Umatilla, OR: EPA TRI 2023 reporting year
Same facilities, both years
+39.8%
7 facilities that filed in 2022 and 2023
Whole inventory
+39.8%
324.4 thousand lb → 453.4 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Umatilla, OR's total reported releases rose from 324.4 thousand lb in 2022 to 453.4 thousand lb in 2023, based on EPA TRI filings.
- Umatilla, OR's air releases fell from 19.7 thousand lb in 2022 to 5.2 thousand lb in 2023, based on EPA TRI filings.
- Umatilla, OR's off-site transfers rose from 245.8 thousand lb in 2022 to 401.8 thousand lb in 2023, based on EPA TRI filings.
- Umatilla, OR's land releases fell from 58.8 thousand lb in 2022 to 46.3 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 | 272 (74%) | 90 | 4 | 117 |
| 2023 | 259 (71%) | 103 | 0 | 267 |
| 2022 | 244 (67%) | 118 | 3 | 141 |
| 2021 | 265 (73%) | 92 | 6 | 169 |
| 2020 | 273 (75%) | 85 | 0 | 738 |
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 (30)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| HERMISTON, CITY OF | 20,000 | 0 |
| PENDLETON, CITY OF | 16,996 | 1 |
| UMATILLA, CITY OF | 8,256 | 0 |
| MILTON-FREEWATER, CITY OF | 7,145 | 0 |
| STANFIELD, CITY OF | 2,115 | 0 |
| PILOT ROCK, CITY OF | 1,326 | 0 |
| CTUIR PWD MISSION | 1,310 | 1 |
| ATHENA, CITY OF | 1,238 | 4 |
| WESTON, CITY OF | 714 | 0 |
| ECHO, CITY OF | 632 | 0 |
| ADAMS WATER DEPT, CITY OF | 400 | 0 |
| VISTA HOME PARK | 300 | 0 |
| CHARLES TRACTS WATER COMPANY | 290 | 0 |
| UKIAH, CITY OF | 235 | 1 |
| HELIX, CITY OF | 190 | 2 |
| RIETH WATER DISTRICT | 150 | 0 |
| HAT ROCK WATER COMPANY | 150 | 17 |
| HERITAGE IMPROVEMENT DISTRICT | 125 | 0 |
| CHART SUBDIVISION | 125 | 1 |
| SHADY REST MOBILE COURT | 110 | 0 |
| NORTH HILL WATER CORPORATION | 100 | 4 |
| VINCENT WATER COMPANY | 90 | 1 |
| STANFIELD HUTTERIAN | 80 | 0 |
| GREEN MEADOWS WTR CORPORATION | 75 | 0 |
| MCKAY ACRES IMPROVEMENT DIST | 75 | 0 |
| POWER CITY WATER CO-OP | 70 | 0 |
| HALLS TRAILER COURT | 60 | 0 |
| STEWARTS ADDITION | 50 | 0 |
| BLACK MOUNTAIN WATER DISTRICT | 43 | 0 |
| DESIRE FOR HEALING, INC | 33 | 2 |
TRI Facilities (10)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Lamb Weston Inc. | 1.4M lbs |
| 2 | Lakeside Foods Inc. | 104.8K lbs |
| 3 | American Rock Products Hermiston | 5.8K lbs |
| 4 | Lippert Components Inc. - Plant #27 | 5.8K lbs |
| 5 | US Army National Guard Rees Training Center Ranges | 5.4K lbs |
| 6 | Grain Craft | 0 lbs |
| 7 | Clayton Hermiston | 0 lbs |
| 8 | Chs Hermiston Feed | 0 lbs |
| 9 | Keystone Rv | 0 lbs |
| 10 | Keystone Rv | 0 lbs |
Cities in Umatilla (12)
Frequently Asked Questions
What is the environmental risk level in Umatilla, Oregon? ▼
Are there Superfund sites in Umatilla? ▼
How many toxic release facilities are in Umatilla? ▼
What is the air quality in Umatilla? ▼
Is the drinking water safe in Umatilla? ▼
What environmental agencies cover Umatilla? ▼
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.