Olmsted, 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 Olmsted in Minnesota · Population: 163,425
TRI sites such as Kerry Ingredients & Flavours Inc.; Geotek LLC; Emcor Enclosures; SDWIS systems such as Rochester; Stewartville; Byron; NPL sites such as Olmsted County Sanitary Landfill anchor Olmsted, MN's EPA extract. Derived burden score 31/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Kerry Ingredients & Flavours Inc.; Geotek LLC; Emcor Enclosures are among the largest Form R filers reporting in Olmsted; no SDWIS system here carries an active health-based flag. AQS median AQI 44 / peak 155 in 2024.
Burden score 31/100 (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 Olmsted -- 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 Olmsted, MN: EPA TRI 2023 reporting year
Same facilities, both years
-4.0%
7 facilities that filed in 2022 and 2023
Whole inventory
-5.8%
223.6 thousand lb → 210.7 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Olmsted, MN's total reported releases fell from 219.5 thousand lb in 2022 to 210.7 thousand lb in 2023, based on EPA TRI filings.
- Olmsted, MN's air releases fell from 119.7 thousand lb in 2022 to 101.1 thousand lb in 2023, based on EPA TRI filings.
- Olmsted, MN's off-site transfers rose from 99.8 thousand lb in 2022 to 109.6 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 | 234 (64%) | 131 | 0 | 155 |
| 2023 | 189 (52%) | 161 | 14 | 167 |
| 2022 | 280 (78%) | 78 | 1 | 110 |
| 2021 | 275 (76%) | 84 | 2 | 125 |
| 2020 | 292 (80%) | 73 | 1 | 111 |
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 (17)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| Rochester | 123,624 | 0 |
| Stewartville | 6,850 | 0 |
| Byron | 6,809 | 0 |
| Eyota | 2,043 | 0 |
| Oronoco | 2,040 | 0 |
| Elgin | 1,115 | 0 |
| Dover | 792 | 0 |
| Chester Heights | 300 | 0 |
| Zumbro Ridge Estates | 270 | 0 |
| Hallmark Terrace Mobile Home Park | 170 | 0 |
| Sandy Slopes Community | 158 | 0 |
| Meadowbrook Addition | 125 | 0 |
| Briarwood Subdivision | 90 | 0 |
| Clearwater Well Company | 65 | 0 |
| Country Home Trailer Park | 56 | 0 |
| Sunrise Mobile Home Park | 50 | 0 |
| Kings Park - Hyland Addition | 40 | 0 |
TRI Facilities (9)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Kerry Ingredients & Flavours Inc. | 990.8K lbs |
| 2 | Geotek LLC | 476.0K lbs |
| 3 | Emcor Enclosures | 54.6K lbs |
| 4 | Crenlo Engineered Cabs LLC - Plant 2 | 40.0K lbs |
| 5 | Halcon Corp | 35.5K lbs |
| 6 | Associated Milk Producers Inc | 27.4K lbs |
| 7 | Kemps LLC - Rochester | 10.3K lbs |
| 8 | Crenlo Engineered Cabs LLC - Plant 1 | 93 lbs |
| 9 | Benchmark | 3 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Olmsted County Sanitary Landfill | Deleted NPL Site | 40.70 |
Cities in Olmsted (7)
Frequently Asked Questions
What is the environmental risk level in Olmsted, Minnesota? ▼
Are there Superfund sites in Olmsted? ▼
How many toxic release facilities are in Olmsted? ▼
What is the air quality in Olmsted? ▼
Is the drinking water safe in Olmsted? ▼
What environmental agencies cover Olmsted? ▼
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.