Adams, WA
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 Adams in Washington · Population: 20,690
TRI sites such as McCain Foods USA Inc; Simplot U.S. Food Group Holdings Llc.; SDWIS systems such as OTHELLO WATER DEPARTMENT; PACIFIC CITY OF; RITZVILLE WATER DEPARTMENT anchor Adams, WA's EPA extract. Derived burden score 26/100 (Low 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 Adams include Cypress Country Estates, while McCain Foods USA Inc leads reported TRI pounds among local Form R filers. AQS median AQI 18 / peak 71 in 2024.
Burden score 26/100 (Low 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 Adams -- 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 Adams, WA: EPA TRI 2023 reporting year
Same facilities, both years
+237.4%
2 facilities that filed in 2022 and 2023
Whole inventory
+237.4%
404.7 thousand lb → 1.4 million lb, every facility that filed
- Adams, WA's total reported releases rose from 404.7 thousand lb in 2022 to 1.4 million lb in 2023, based on EPA TRI filings.
- Adams, WA's off-site transfers rose from 378.9 thousand lb in 2022 to 1.4 million lb in 2023, based on EPA TRI filings.
- Adams, WA's air releases fell from 25.9 thousand lb in 2022 to 13.1 thousand lb in 2023, based on EPA TRI filings.
- Adams, WA's chemicals reported rose from 5 in 2022 to 6 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 | 328 (93%) | 23 | 0 | 71 |
| 2023 | 330 (90%) | 32 | 1 | 267 |
| 2022 | 327 (90%) | 34 | 2 | 162 |
| 2021 | 333 (91%) | 24 | 3 | 191 |
| 2020 | 345 (95%) | 11 | 0 | 266 |
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 Washington, see the EPA's AirNow.gov.
Water Systems (26)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| OTHELLO WATER DEPARTMENT | 8,755 | 0 |
| PACIFIC CITY OF | 7,925 | 0 |
| RITZVILLE WATER DEPARTMENT | 1,725 | 0 |
| LIND TOWN OF | 903 | 0 |
| ADAMS COUNTY WATER DIST #1 | 870 | 0 |
| ST JOHN TOWN OF | 800 | 0 |
| ROYAL WATER DISTRICT | 430 | 0 |
| RINGOLD DOMESTIC WATER CORP | 340 | 0 |
| WEST MESA DOMESTIC WATER ASSN | 316 | 0 |
| Cypress Country Estates | 253 | 1 |
| WASHTUCNA WATER DEPARTMENT | 250 | 0 |
| SUMMERSET WEST WATER ASSOCIATION | 240 | 0 |
| Rustic Ridge | 221 | 0 |
| OTHELLO COUNTRY CLUB WATER ASSN | 208 | 0 |
| BIRD DOG FAMILY LTD PARTNERSHIP II | 186 | 0 |
| WEST 15 DOMESTIC WATER ASSN | 150 | 0 |
| RADAR HILL WATER SYSTEM | 128 | 0 |
| STAHL HUTTERIAN BRETHREN | 122 | 0 |
| Richview | 120 | 0 |
| MEADOW LANE WATER ASSN | 98 | 0 |
| FAIRVIEW DOMESTIC WATER ASSN | 89 | 0 |
| West Side Mobile Court | 80 | 0 |
| BASIN VIEW WATER ASSOCIATION | 60 | 0 |
| HIGHLAND ESTATES WATER SYSTEM | 53 | 0 |
| Legacy Resort | 46 | 0 |
| SOUTH OTHELLO WATER USERS | 35 | 0 |
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | McCain Foods USA Inc | 1.7M lbs |
| 2 | Simplot U.S. Food Group Holdings Llc. | 192.8K lbs |
Cities in Adams (4)
Frequently Asked Questions
What is the environmental risk level in Adams, Washington? ▼
Are there Superfund sites in Adams? ▼
How many toxic release facilities are in Adams? ▼
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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.