Blue Earth, 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. 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 Blue Earth in Minnesota · Population: 69,386
TRI sites such as Chs Mankato; Adm; Crown Cork & Seal Co Inc; SDWIS systems such as Mankato; Eagle Lake; Lake Crystal; NPL sites such as Lehillier/Mankato Site anchor Blue Earth, MN's EPA extract. Derived burden score 48/100 (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 Blue Earth include Amboy; Hillcrest Health Care Center, while Chs Mankato leads reported TRI pounds among local Form R filers. AQS median AQI 45 / peak 80 in 2024.
Burden score 48/100 (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 Blue Earth -- 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 Blue Earth, MN: EPA TRI 2023 reporting year
Same facilities, both years
+10.5%
15 facilities that filed in 2022 and 2023
Whole inventory
+10.5%
1.2 million lb → 1.3 million lb, every facility that filed
- Blue Earth, MN's total reported releases rose from 1.2 million lb in 2022 to 1.3 million lb in 2023, based on EPA TRI filings.
- Blue Earth, MN's off-site transfers fell from 28.7 thousand lb in 2022 to 6.2 thousand lb in 2023, based on EPA TRI filings.
- Blue Earth, MN's air releases rose from 1.2 million lb in 2022 to 1.3 million lb in 2023, based on EPA TRI filings.
Air Quality History (2024–2024)
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 | 90 (62%) | 56 | 0 | 80 |
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 (18)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| Mankato | 42,803 | 0 |
| Eagle Lake | 3,268 | 0 |
| Lake Crystal | 2,554 | 0 |
| Mapleton | 1,756 | 0 |
| Madison Lake | 1,017 | 0 |
| Saint Clair | 846 | 0 |
| Minnesota Lake | 683 | 0 |
| Good Thunder | 583 | 0 |
| Amboy | 535 | 12 |
| South Bend Township | 325 | 0 |
| Vernon Center | 323 | 0 |
| Skyline | 289 | 0 |
| Pemberton | 247 | 0 |
| Rapidan Development Company, Inc. | 164 | 0 |
| GC Mankato Hill LLC | 140 | 0 |
| Hillcrest Health Care Center | 94 | 3 |
| Riverbend Homes and More | 60 | 0 |
| Terrace View East Condominium Assoc. | 38 | 0 |
TRI Facilities (15)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Chs Mankato | 3.2M lbs |
| 2 | Adm | 2.8M lbs |
| 3 | Crown Cork & Seal Co Inc | 418.2K lbs |
| 4 | Mankato Energy Center | 271.0K lbs |
| 5 | Poet Biorefining Lake Crystal | 25.4K lbs |
| 6 | Tbei - Truck Bodies & Equipment International (lake Crystal) | 6.0K lbs |
| 7 | Mps Mankato LLC | 5.8K lbs |
| 8 | Industrial Fabrication Services Inc. | 4.7K lbs |
| 9 | Ccm - Mankato North | 384 lbs |
| 10 | Nortech Systems-Mankato | 2 lbs |
| 11 | Rolls-Royce Solutions America Inc. | 0 lbs |
| 12 | Big Gain Inc | 0 lbs |
| 13 | Hubbard Feeds Inc | 0 lbs |
| 14 | Ei Microcircuits | 0 lbs |
| 15 | Minnesota Elevator Inc | 0 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Lehillier/Mankato Site | NPL Site | 42.49 |
Cities in Blue Earth (12)
Frequently Asked Questions
What is the environmental risk level in Blue Earth, Minnesota? ▼
Are there Superfund sites in Blue Earth? ▼
How many toxic release facilities are in Blue Earth? ▼
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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.