Washington, OK
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 Washington in Oklahoma · Population: 52,895
TRI sites such as Schlumberger Bartlesville Product Center; Superior Cos Inc Machining & Fabrication Div; SDWIS systems such as DEWEY PUBLIC WORKS AUTHORITY; GRAND LAKE PWA; WASHINGTON CO RWD #2; NPL sites such as National Zinc Corp. anchor Washington, OK's EPA extract. Derived burden score 37/100 (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 Washington include DEWEY PUBLIC WORKS AUTHORITY; GRAND LAKE PWA; WASHINGTON CO RWD #2, while Schlumberger Bartlesville Product Center leads reported TRI pounds among local Form R filers. AQS median AQI 47 / peak 156 in 2024.
Burden score 37/100 (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 Washington -- 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 Washington, OK: EPA TRI 2023 reporting year
Same facilities, both years
-26.7%
1 facilities that filed in 2022 and 2023
Whole inventory
-26.7%
65.0 thousand lb → 47.6 thousand lb, every facility that filed
- Washington, OK's total reported releases fell from 65.0 thousand lb in 2022 to 47.6 thousand lb in 2023, based on EPA TRI filings.
- Washington, OK's air releases rose from 204 lb in 2022 to 270 lb in 2023, based on EPA TRI filings.
- Washington, OK's off-site transfers fell from 64.8 thousand lb in 2022 to 47.4 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 | 182 (57%) | 128 | 7 | 156 |
| 2021 | 168 (49%) | 170 | 7 | 139 |
| 2020 | 232 (67%) | 111 | 1 | 101 |
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 Oklahoma, see the EPA's AirNow.gov.
Water Systems (15)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| DEWEY PUBLIC WORKS AUTHORITY | 3,490 | 16 |
| GRAND LAKE PWA | 2,800 | 7 |
| WASHINGTON CO RWD #2 | 2,250 | 3 |
| WASHINGTON CO RWD #1 | 1,375 | 0 |
| OSAGE CO RWD # 1 | 930 | 3 |
| WASHINGTON CO RWD #5 | 900 | 4 |
| LE ANN WATER | 750 | 13 |
| COPAN PWA | 733 | 108 |
| RAMONA PUBLIC WORKS AUTHORITY | 564 | 11 |
| NOWATA CO RW & S DIST #1 | 500 | 3 |
| OCHELATA UTILITY AUTHORITY | 494 | 1 |
| OSAGE CO RWD #18 (EVERGREEN) | 302 | 61 |
| WASHINGTON CO RWD #7 | 258 | 22 |
| BAR-DEW WATER ASSOC INC | 130 | 1 |
| BRANSON MOUNTAIN VILLAGE | 30 | 0 |
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Schlumberger Bartlesville Product Center | 115.5K lbs |
| 2 | Superior Cos Inc Machining & Fabrication Div | 0 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| National Zinc Corp. | Proposed NPL Site | 50.00 |
Cities in Washington (5)
Frequently Asked Questions
What is the environmental risk level in Washington, Oklahoma? ▼
Are there Superfund sites in Washington? ▼
How many toxic release facilities are in Washington? ▼
What is the air quality in Washington? ▼
Is the drinking water safe in Washington? ▼
What environmental agencies cover Washington? ▼
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.