Lenawee, 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.
Environmental data for Lenawee in Michigan · Population: 98,823
TRI sites such as Ervin Industries Inc; W2 Fuel LLC; Ppg Industries-Adrian; SDWIS systems such as ADRIAN; TECUMSEH; MADISON TOWNSHIP; NPL sites such as Anderson Development Co. anchor Lenawee, MI's EPA extract. Derived burden score 50/100 (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 Lenawee include CLINTON; MORENCI; DEERFIELD, while Ervin Industries Inc leads reported TRI pounds among local Form R filers. AQS median AQI 43 / peak 97 in 2024.
Burden score 50/100 (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 Lenawee -- 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 Lenawee, MI: EPA TRI 2023 reporting year
Same facilities, both years
-76.3%
10 facilities that filed in 2022 and 2023
Whole inventory
-76.3%
758.0 thousand lb → 179.9 thousand lb, every facility that filed
- Lenawee, MI's total reported releases fell from 758.0 thousand lb in 2022 to 179.9 thousand lb in 2023, based on EPA TRI filings.
- Lenawee, MI's air releases rose from 15.2 thousand lb in 2022 to 168.9 thousand lb in 2023, based on EPA TRI filings.
- Lenawee, MI's off-site transfers fell from 742.6 thousand lb in 2022 to 10.7 thousand lb in 2023, based on EPA TRI filings.
- Lenawee, MI's water releases fell from 323 lb in 2022 to 254 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 | 253 (69%) | 113 | 0 | 97 |
| 2023 | 188 (52%) | 166 | 8 | 165 |
| 2022 | 250 (68%) | 115 | 0 | 97 |
| 2021 | 188 (58%) | 134 | 0 | 93 |
| 2020 | 248 (68%) | 116 | 2 | 122 |
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 (25)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| ADRIAN | 23,663 | 0 |
| TECUMSEH | 8,521 | 0 |
| MADISON TOWNSHIP | 3,480 | 0 |
| BLISSFIELD | 3,276 | 0 |
| CLINTON | 2,336 | 4 |
| HUDSON | 2,307 | 0 |
| MORENCI | 2,220 | 1 |
| DEERFIELD | 943 | 36 |
| ONSTED | 907 | 0 |
| FAIRFIELD TOWNSHIP | 717 | 0 |
| BRITTON | 611 | 0 |
| ADDISON | 605 | 14 |
| SOUTH SHORE WATER SYSTEM | 488 | 0 |
| LEE VILLA MOBILE HOME PARK | 283 | 1 |
| RIGA TOWNSHIP | 266 | 20 |
| LAKE ARROWHEAD ESTATES | 231 | 0 |
| LEFFINGWELL ESTATES | 210 | 2 |
| MAN NOR FARMS SUBDIVISION | 193 | 0 |
| RICHLYN MANOR | 192 | 0 |
| WATERS EDGE MH COMMUNITY | 180 | 19 |
| DJW PROPERTIES MI LLC | 144 | 0 |
| BROOKDALE ADRIAN | 115 | 0 |
| CLINTON ESTATES | 68 | 1 |
| PARK VIEW COURT | 63 | 0 |
| SUNSET MHP | 53 | 6 |
TRI Facilities (11)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Ervin Industries Inc | 2.5M lbs |
| 2 | W2 Fuel LLC | 1.0M lbs |
| 3 | Ppg Industries-Adrian | 32.0K lbs |
| 4 | Wacker Chemical Corp | 21.2K lbs |
| 5 | Anderson Development Co | 21.1K lbs |
| 6 | Crimson Holdings LLC | 16.9K lbs |
| 7 | Valero Renewable Fuels Co LLC | 7.0K lbs |
| 8 | Ervin Technologies | 6.1K lbs |
| 9 | Silbond Corp | 1.3K lbs |
| 10 | Adrian Steel Co | 183 lbs |
| 11 | Inteva Products-Adrian Operations | 6 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Anderson Development Co. | Deleted NPL Site | 31.02 |
Cities in Lenawee (14)
Frequently Asked Questions
What is the environmental risk level in Lenawee, Michigan? ▼
Are there Superfund sites in Lenawee? ▼
How many toxic release facilities are in Lenawee? ▼
What is the air quality in Lenawee? ▼
Is the drinking water safe in Lenawee? ▼
What environmental agencies cover Lenawee? ▼
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.