Dunn, ND
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 Dunn in North Dakota · Population: 4,043
TRI sites such as Bear Creek Gas Plant; SDWIS systems such as KILLDEER CITY OF; HALLIDAY CITY OF; DUNN CENTER CITY OF anchor Dunn, ND's EPA extract. Derived burden score 15/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Bear Creek Gas Plant is among the largest Form R filers reporting in Dunn; no SDWIS system here carries an active health-based flag. AQS median AQI 37 / peak 157 in 2024.
Burden score 15/100 (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 Dunn -- 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 Dunn, ND: EPA TRI 2023 reporting year
Same facilities, both years
-6.1%
1 facilities that filed in 2022 and 2023
Whole inventory
-6.1%
16.7 thousand lb → 15.7 thousand lb, every facility that filed
- Dunn, ND's total reported releases fell from 16.7 thousand lb in 2022 to 15.7 thousand lb in 2023, based on EPA TRI filings.
- Dunn, ND's off-site transfers fell from 10.2 thousand lb in 2022 to 9.0 thousand lb in 2023, based on EPA TRI filings.
- Dunn, ND's air releases rose from 6.5 thousand lb in 2022 to 6.7 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 | 304 (83%) | 53 | 5 | 157 |
| 2023 | 263 (72%) | 85 | 11 | 318 |
| 2022 | 308 (85%) | 54 | 0 | 82 |
| 2021 | 277 (76%) | 78 | 7 | 184 |
| 2020 | 347 (95%) | 19 | 0 | 62 |
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 North Dakota, see the EPA's AirNow.gov.
Water Systems (5)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| KILLDEER CITY OF | 939 | 0 |
| HALLIDAY CITY OF | 188 | 0 |
| DUNN CENTER CITY OF | 146 | 0 |
| DODGE CITY OF | 87 | 0 |
| MANNING WATER BOARD | 55 | 0 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Bear Creek Gas Plant | 32.4K lbs |
Cities in Dunn (5)
Frequently Asked Questions
What is the environmental risk level in Dunn, North Dakota? ▼
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How many toxic release facilities are in Dunn? ▼
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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.