St. Louis, MN
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 St. Louis in Minnesota · Population: 200,056
TRI sites such as Me Global Inc; Hibbard Renewable Energy Center; Cirrus Design Corp/cirrus Aircraft; SDWIS systems such as Duluth; Hibbing; Virginia; NPL sites such as Arrowhead Refinery Co.; St. Louis River Site anchor St. Louis, MN's EPA extract. Derived burden score 61/100 (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 St. Louis include Duluth; Eveleth; Biwabik, while Me Global Inc leads reported TRI pounds among local Form R filers. AQS median AQI 39 / peak 114 in 2024.
Burden score 61/100 (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 St. Louis -- 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 St. Louis, MN: EPA TRI 2023 reporting year
Same facilities, both years
-30.0%
17 facilities that filed in 2022 and 2023
Whole inventory
-30.0%
435.1 thousand lb → 304.7 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- St. Louis, MN's total reported releases fell from 435.1 thousand lb in 2022 to 304.7 thousand lb in 2023, based on EPA TRI filings.
- St. Louis, MN's air releases fell from 189.8 thousand lb in 2022 to 73.7 thousand lb in 2023, based on EPA TRI filings.
- St. Louis, MN's chemicals reported fell from 28 in 2022 to 23 in 2023, based on EPA TRI filings.
- St. Louis, MN's off-site transfers fell from 245.3 thousand lb in 2022 to 231.0 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 | 286 (78%) | 77 | 3 | 114 |
| 2023 | 221 (61%) | 136 | 6 | 286 |
| 2022 | 322 (88%) | 43 | 0 | 75 |
| 2021 | 283 (78%) | 72 | 8 | 159 |
| 2020 | 279 (76%) | 86 | 1 | 104 |
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 Minnesota, see the EPA's AirNow.gov.
Water Systems (29)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| Duluth | 86,859 | 1 |
| Hibbing | 16,028 | 0 |
| Virginia | 8,361 | 0 |
| Hermantown | 7,215 | 0 |
| Chisholm | 4,940 | 0 |
| Eveleth | 3,770 | 2 |
| Proctor | 3,099 | 0 |
| Mountain Iron | 2,880 | 0 |
| Hoyt Lakes | 2,020 | 0 |
| Gilbert | 1,829 | 0 |
| Aurora | 1,764 | 0 |
| White Township | 1,559 | 0 |
| Babbitt | 1,379 | 0 |
| Rice Lake | 1,085 | 0 |
| Buhl | 1,000 | 0 |
| Biwabik | 975 | 4 |
| Cook | 574 | 0 |
| Fayal Township | 565 | 0 |
| Floodwood | 501 | 0 |
| Breitung | 446 | 1 |
| Tower | 426 | 4 |
| Orr | 249 | 0 |
| Kinney | 154 | 0 |
| Meadowlands | 135 | 2 |
| McKinley | 110 | 0 |
| Iron Junction | 87 | 0 |
| MN Correctional Facility - Togo | 75 | 0 |
| Iron Bowl MHP | 44 | 0 |
| Lakeland Terrace Mobile Home Park | 42 | 0 |
TRI Facilities (22)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Me Global Inc | 700.2K lbs |
| 2 | Hibbard Renewable Energy Center | 284.8K lbs |
| 3 | Cirrus Design Corp/cirrus Aircraft | 228.5K lbs |
| 4 | Mn Twist Drill Aquisition LLC | 142.6K lbs |
| 5 | Duluth Paper Mill | 87.5K lbs |
| 6 | Hibbing Renewable Energy Center | 74.9K lbs |
| 7 | L&m Radiator Inc | 9.2K lbs |
| 8 | Compass Minerals America Inc | 8.0K lbs |
| 9 | Detroit Reman-Dmr Electronics | 854 lbs |
| 10 | Northern Foundry | 787 lbs |
| 11 | Federal Prison Camp | 702 lbs |
| 12 | Virginia Public Utilities | 315 lbs |
| 13 | Dyno Nobel Inc | 132 lbs |
| 14 | CAST7 LLC | 120 lbs |
| 15 | Altec Industries Inc. | 109 lbs |
| 16 | Primary Products Ingredients Americas LLC - Duluth | 55 lbs |
| 17 | Gerdau Ameristeel US Inc | 6 lbs |
| 18 | Irathane Systems-Minnesota LLC | 1 lbs |
| 19 | Austin Powder Mining LLC | 0 lbs |
| 20 | Lake States Lumber Inc. | 0 lbs |
| 21 | Hirel Systems LLC | 0 lbs |
| 22 | Joy Global Surface Mining Inc. | 0 lbs |
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Arrowhead Refinery Co. | Deleted NPL Site | 43.75 |
| St. Louis River Site | NPL Site | 32.08 |
Cities in St. Louis (25)
Frequently Asked Questions
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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.