Huron, MI
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 Huron in Michigan · Population: 31,258
TRI sites such as Corteva Agriscience LLC - Harbor Beach Operations; Blue Diamond Steel Casting,inc.; Huron Casting Inc; SDWIS systems such as NORTH MUSKEGON; BAD AXE; CASEVILLE TOWNSHIP anchor Huron, MI'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 Huron include HARBOR BEACH, CITY OF; CASEVILLE, CITY OF, while Corteva Agriscience LLC - Harbor Beach Operations leads reported TRI pounds among local Form R filers. AQS median AQI 38 / peak 119 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 Huron -- 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 Huron, MI: EPA TRI 2023 reporting year
Same facilities, both years
+0.5%
8 facilities that filed in 2022 and 2023
Whole inventory
+0.5%
1.3 million lb → 1.3 million lb, every facility that filed
- Huron, MI's total reported releases rose from 1.3 million lb in 2022 to 1.3 million lb in 2023, based on EPA TRI filings.
- Huron, MI's water releases rose from 1.3 thousand lb in 2022 to 4.7 thousand lb in 2023, based on EPA TRI filings.
- Huron, MI's land releases fell from 32.6 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Huron, MI's chemicals reported rose from 17 in 2022 to 18 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 | 216 (88%) | 28 | 1 | 119 |
| 2023 | 209 (87%) | 27 | 4 | 133 |
| 2022 | 227 (93%) | 15 | 1 | 122 |
| 2021 | 221 (90%) | 23 | 2 | 101 |
| 2020 | 246 (92%) | 13 | 7 | 150 |
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 Michigan, see the EPA's AirNow.gov.
Water Systems (16)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| NORTH MUSKEGON | 3,786 | 0 |
| BAD AXE | 3,129 | 0 |
| CASEVILLE TOWNSHIP | 2,005 | 0 |
| SEBEWAING LIGHT & WATER | 1,721 | 0 |
| HARBOR BEACH, CITY OF | 1,604 | 4 |
| PIGEON, VILLAGE OF | 1,208 | 0 |
| PORT HOPE-GORE-RUBICON U. A. | 1,058 | 0 |
| PORT AUSTIN AREA SEWER & WATER | 1,004 | 0 |
| ELKTON, VILLAGE OF | 808 | 0 |
| CASEVILLE, CITY OF | 777 | 3 |
| SAND BEACH TOWNSHIP | 525 | 0 |
| HURON TOWNSHIP (HURON COUNTY) | 437 | 0 |
| OWENDALE, VILLAGE OF | 241 | 0 |
| POINTE AUX BARQUES TOWNSHIP | 178 | 0 |
| HURON DUNES SUBDIVISION | 175 | 0 |
| HURON REGIONAL WATER AUTHORITY | 0 | 0 |
TRI Facilities (8)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Corteva Agriscience LLC - Harbor Beach Operations | 2.3M lbs |
| 2 | Blue Diamond Steel Casting,inc. | 1.5M lbs |
| 3 | Huron Casting Inc | 1.1M lbs |
| 4 | Valley Enterprises Inc. | 141.6K lbs |
| 5 | Michigan Sugar Co - Sebewaing Factory | 70.0K lbs |
| 6 | Sensient Flavors LLC | 10.7K lbs |
| 7 | Tower Automotive Operations USA I LLC | 1.6K lbs |
| 8 | Thumb Tool & Engineering | 0 lbs |
Cities in Huron (10)
Frequently Asked Questions
What is the environmental risk level in Huron, Michigan? ▼
Are there Superfund sites in Huron? ▼
How many toxic release facilities are in Huron? ▼
What is the air quality in Huron? ▼
Is the drinking water safe in Huron? ▼
What environmental agencies cover Huron? ▼
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.