Minnehaha, SD
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against every other tracked county rather than against fixed national thresholds.
Environmental data for Minnehaha in South Dakota · Population: 200,689
Minnehaha, SD is tracked across three EPA datasets covering 27 Toxics Release Inventory (TRI) facilities, 17 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 53/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 22.2M lbs of reported toxic releases under EPCRA Section 313, while 10 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 34 and a peak AQI of 145 in 2024, with 81% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
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 | 297 (81%) | 66 | 2 | 145 |
| 2023 | 235 (64%) | 103 | 23 | 181 |
| 2022 | 300 (82%) | 64 | 1 | 105 |
| 2021 | 266 (76%) | 78 | 3 | 193 |
| 2020 | 298 (81%) | 68 | 0 | 90 |
Source: EPA Air Quality System (AQS) Annual AQI by County 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 South Dakota, see the EPA's AirNow.gov.
Water Systems (17)
| System | Population | Violations |
|---|---|---|
| SIOUX FALLS | 216,462 | 1 |
| MINNEHAHA COMMUNITY WATER CORP | 13,435 | 0 |
| BRANDON | 11,048 | 0 |
| DELL RAPIDS | 3,633 | 0 |
| HARTFORD | 3,396 | 0 |
| CROOKS | 1,362 | 0 |
| BALTIC | 1,271 | 1 |
| GARRETSON | 1,228 | 1 |
| VALLEY SPRINGS | 925 | 4 |
| COLTON | 738 | 1 |
| HUMBOLDT | 579 | 5 |
| PINE LAKE HILLS | 320 | 3 |
| VALLEY VIEW ESTATES | 230 | 2 |
| MORROW CROSSING MHC | 150 | 0 |
| SKYLINE HEIGHTS | 110 | 1 |
| PROSPECT MANOR MHC | 94 | 0 |
| BEULAH LAND WATER | 50 | 3 |
TRI Facilities (27)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Smithfield Packaged Meats Corp - Sioux Falls | 21.3M lbs |
| 2 | Masterbrand Cabinets LLC | 421.0K lbs |
| 3 | Design Tanks LLC | 247.4K lbs |
| 4 | Marmen Energy Co | 192.0K lbs |
| 5 | Henkel of America Inc. | 12.3K lbs |
| 6 | Chs Corson Feed | 4.6K lbs |
| 7 | Knife River-Madison Street | 1.7K lbs |
| 8 | Knife River-Rice Street | 879 lbs |
| 9 | Diamond Mowers Inc. | 423 lbs |
| 10 | Graco Inc Sioux Falls | 162 lbs |
| 11 | Hansen Manufacturing DBA Hi-Roller Conveyors | 92 lbs |
| 12 | US Dod Usaf Joe Foss Field Ang Sd | 60 lbs |
| 13 | Curt Manufacturing LLC | 51 lbs |
| 14 | Hancock Concrete Products | 21 lbs |
| 15 | Safety-Kleen Systems | 20 lbs |
| 16 | Tcc - Sioux Falls | 3 lbs |
| 17 | Raven Industries Inc. | 0 lbs |
| 18 | Cemcast Pipe & Precast LLC | 0 lbs |
| 19 | Gates Corp | 0 lbs |
| 20 | Electronic Systems Inc | 0 lbs |
| 21 | Allied Oil & Tire Co LLC | 0 lbs |
| 22 | Alex C. Fergusson LLC | 0 lbs |
| 23 | Rosenbauer South Dakota LLC | 0 lbs |
| 24 | Daktronics Inc | 0 lbs |
| 25 | Purina Animal Nutrition LLC - Sioux Falls Sd | 0 lbs |
| 26 | Hoh Water Technology Inc | 0 lbs |
| 27 | Knife River Corson Ready Mix Plant | 0 lbs |
Cities in Minnehaha (5)
Frequently Asked Questions
What is the environmental risk level in Minnehaha, South Dakota? ▼
Are there Superfund sites in Minnehaha? ▼
How many toxic release facilities are in Minnehaha? ▼
What is the air quality in Minnehaha? ▼
Is the drinking water safe in Minnehaha? ▼
What environmental agencies cover Minnehaha? ▼
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.