Sebastian, AR
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 Sebastian in Arkansas · Population: 128,448
TRI sites such as Ok Foods-Ft Smith; Gerdau-Fort Smith Mill; US Army National Guard Fort Chaffee Ranges; SDWIS systems such as FORT SMITH WATER UTILITIES; JAMES FORK REGIONAL WATER DISTRICT; GREENWOOD WATERWORKS; NPL sites such as Industrial Waste Control anchor Sebastian, AR's EPA extract. Derived burden score 62/100 (High 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 Sebastian include FORT SMITH WATER UTILITIES; JAMES FORK REGIONAL WATER DISTRICT; MILLTOWN-WASHBURN WATER USERS, while Ok Foods-Ft Smith leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 62/100 (High 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 Sebastian -- 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 Sebastian, AR: EPA TRI 2023 reporting year
Same facilities, both years
-37.2%
22 facilities that filed in 2022 and 2023
Whole inventory
-36.7%
723.5 thousand lb → 457.6 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Sebastian, AR's total reported releases fell from 723.5 thousand lb in 2022 to 454.6 thousand lb in 2023, based on EPA TRI filings.
- Sebastian, AR's off-site transfers fell from 211.1 thousand lb in 2022 to 54.1 thousand lb in 2023, based on EPA TRI filings.
- Sebastian, AR's air releases rose from 50.2 thousand lb in 2022 to 79.2 thousand lb in 2023, based on EPA TRI filings.
- Sebastian, AR's water releases fell from 402.8 thousand lb in 2022 to 263.4 thousand lb in 2023, based on EPA TRI filings.
Water Systems (13)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| FORT SMITH WATER UTILITIES | 86,209 | 4 |
| JAMES FORK REGIONAL WATER DISTRICT | 11,538 | 21 |
| GREENWOOD WATERWORKS | 9,905 | 0 |
| BARLING WATERWORKS | 5,822 | 0 |
| MILLTOWN-WASHBURN WATER USERS | 4,325 | 125 |
| LAVACA WATERWORKS | 3,650 | 0 |
| MANSFIELD WATERWORKS | 2,367 | 34 |
| CENTRAL CITY WATER DEPARTMENT | 1,227 | 0 |
| HUNTINGTON WATERWORKS | 782 | 24 |
| HARTFORD WATERWORKS | 725 | 39 |
| BONANZA WATERWORKS | 610 | 0 |
| FCMTC WATERWORKS | 500 | 4 |
| FRANKLIN-SEBASTIAN PWA | 0 | 0 |
TRI Facilities (26)
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Industrial Waste Control | Deleted NPL Site | 30.31 |
Cities in Sebastian (11)
Frequently Asked Questions
What is the environmental risk level in Sebastian, Arkansas? ▼
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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.