Hennepin, 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 Hennepin in Minnesota · Population: 1,268,903
TRI sites such as Filmtec Corp; Veolia Wts Solutions USA Inc.; Pioneer Metal Finishing; SDWIS systems such as Minneapolis; Bloomington; Brooklyn Park; NPL sites such as General Mills/Henkel Corp.; Highway 100 and County Road 3 Groundwater Plume; Joslyn Manufacturing & Supply Co. anchor Hennepin, MN's EPA extract. Derived burden score 96/100 (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 Hennepin include Greenfield; COUNTRY VIEW HOLDINGS LLC; HILLTOP ESTATES MHP, while Filmtec Corp leads reported TRI pounds among local Form R filers. AQS median AQI 42 / peak 166 in 2024.
Burden score 96/100 (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 Hennepin -- 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 Hennepin, MN: EPA TRI 2023 reporting year
Same facilities, both years
+163.6%
76 facilities that filed in 2022 and 2023
Whole inventory
+164.7%
701.0 thousand lb → 1.9 million lb, every facility that filed
Between the two reporting years, 7 facilities filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Hennepin, MN's total reported releases rose from 698.3 thousand lb in 2022 to 1.8 million lb in 2023, based on EPA TRI filings.
- Hennepin, MN's off-site transfers rose from 550.4 thousand lb in 2022 to 1.7 million lb in 2023, based on EPA TRI filings.
- Hennepin, MN's chemicals reported rose from 59 in 2022 to 70 in 2023, based on EPA TRI filings.
- Hennepin, MN's air releases fell from 146.2 thousand lb in 2022 to 126.4 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 | 243 (66%) | 119 | 3 | 166 |
| 2023 | 173 (47%) | 175 | 14 | 187 |
| 2022 | 244 (67%) | 121 | 0 | 96 |
| 2021 | 213 (58%) | 149 | 0 | 157 |
| 2020 | 206 (56%) | 158 | 1 | 158 |
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 (63)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| Minneapolis | 425,300 | 0 |
| Bloomington | 91,300 | 0 |
| Brooklyn Park | 89,995 | 0 |
| Maple Grove | 82,000 | 0 |
| Plymouth | 76,546 | 0 |
| Eden Prairie | 63,726 | 0 |
| Minnetonka | 54,474 | 0 |
| Edina | 53,494 | 0 |
| Saint Louis Park | 50,010 | 0 |
| Richfield | 36,899 | 0 |
| Brooklyn Center | 33,782 | 0 |
| Champlin | 23,919 | 0 |
| Golden Valley | 23,000 | 0 |
| Crystal | 22,937 | 0 |
| New Hope | 20,963 | 0 |
| Hopkins | 19,462 | 0 |
| Robbinsdale | 14,646 | 0 |
| Rogers | 14,430 | 0 |
| Saint Anthony Village | 9,500 | 0 |
| Mound | 9,447 | 0 |
| Minnetrista | 5,888 | 0 |
| Dayton | 4,985 | 0 |
| Wayzata | 4,592 | 0 |
| Medina | 4,205 | 0 |
| Shorewood | 3,890 | 0 |
| Orono | 3,062 | 0 |
| SE Corcoran | 2,964 | 0 |
| Osseo | 2,650 | 0 |
| Excelsior | 2,483 | 0 |
| Saint Bonifacius | 2,374 | 0 |
| Maple Plain | 2,174 | 0 |
| Spring Park | 1,743 | 0 |
| Long Lake | 1,729 | 0 |
| Tonka Bay | 1,442 | 0 |
| NE Corcoran | 1,300 | 0 |
| Riverview Apartment Partnership | 700 | 0 |
| Loretto | 637 | 0 |
| Crown College | 520 | 0 |
| Sun Valley Mobile Home Park | 500 | 0 |
| HEATHERWOOD TERRACE TOWNHOUSES | 411 | 0 |
| Rockwood Estates | 400 | 0 |
| Clearwater Forest Mobile Home Park | 367 | 0 |
| Greenfield | 313 | 3 |
| 12 Hi Mobile Home Park | 300 | 0 |
| Wyoming Park LLC | 225 | 0 |
| Shores of Eagle Lake | 160 | 0 |
| Blue Waters Leisure Park | 150 | 0 |
| COUNTRY COVE COURT LLC | 150 | 0 |
| Countryside Estates | 116 | 0 |
| HARMONY HILLS MH VILLAGE | 100 | 0 |
| ROLLING HILLS MHP LLC | 90 | 0 |
| West Broadway Apartments | 80 | 0 |
| Windsor Oaks Development | 80 | 0 |
| COUNTRY VIEW HOLDINGS LLC | 75 | 1 |
| Chosen Valley Mobile Home Park | 73 | 0 |
| Wyldewood Acres | 70 | 0 |
| EQUINOX REI LLC DELLWOOD ESTATES | 70 | 0 |
| Majestic Greens LLC Senior Living (Apt.) | 67 | 0 |
| HILLTOP ESTATES MHP | 64 | 1 |
| COACH RUN CONDOS | 60 | 1 |
| CROFT BAY VILLAGE | 48 | 3 |
| Garrison Bay Resort | 36 | 0 |
| FOUNTAIN BLUFFS MHP LLC | 25 | 0 |
TRI Facilities (50)
Superfund Sites (11)
| Site Name | Status | HRS Score |
|---|---|---|
| General Mills/Henkel Corp. | NPL Site | 36.28 |
| Highway 100 and County Road 3 Groundwater Plume | NPL Site | 50.00 |
| Joslyn Manufacturing & Supply Co. | NPL Site | 44.30 |
| NL Industries/Taracorp/Golden Auto | Deleted NPL Site | 39.97 |
| Reilly Tar & Chemical Corp. (St. Louis Park Plant) | NPL Site | 0.00 |
| South Minneapolis Residential Soil Contamination | NPL Site | 44.58 |
| Southeast Hennepin Area Groundwater and Vapor | NPL Site | 50.00 |
| Spring Park Municipal Well Field | NPL Site | 50.00 |
| Twin Cities Air Force Reserve Base (Small Arms Range Landfill) | Deleted NPL Site | 33.62 |
| Union Scrap Iron & Metal Co. | Deleted NPL Site | 42.63 |
| Whittaker Corp. | Deleted NPL Site | 40.03 |
Cities in Hennepin (36)
Frequently Asked Questions
What is the environmental risk level in Hennepin, Minnesota? ▼
Are there Superfund sites in Hennepin? ▼
How many toxic release facilities are in Hennepin? ▼
What is the air quality in Hennepin? ▼
Is the drinking water safe in Hennepin? ▼
What environmental agencies cover Hennepin? ▼
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.