Grant, WI
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Grant in Wisconsin · Population: 51,678
Grant, WI is tracked across three EPA datasets covering 13 Toxics Release Inventory (TRI) facilities, 25 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 40/100 (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 922.9K lbs of reported toxic releases under EPCRA Section 313, while 17 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 36 and a peak AQI of 82 in 2024, with 72% 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 | 263 (72%) | 103 | 0 | 82 |
| 2023 | 198 (54%) | 160 | 4 | 221 |
| 2022 | 241 (67%) | 118 | 0 | 80 |
| 2021 | 200 (56%) | 155 | 0 | 96 |
| 2020 | 235 (65%) | 126 | 0 | 84 |
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 Wisconsin, see the EPA's AirNow.gov.
Water Systems (25)
| System | Population | Violations |
|---|---|---|
| PLATTEVILLE WATERWORKS | 12,268 | 0 |
| LANCASTER WATERWORKS | 3,868 | 0 |
| BOSCOBEL WATERWORKS | 3,237 | 0 |
| FENNIMORE WATERWORKS | 2,507 | 0 |
| CUBA CITY WATERWORKS | 2,141 | 1 |
| MUSCODA WATERWORKS | 1,453 | 4 |
| HAZEL GREEN WATERWORKS | 1,193 | 2 |
| DICKEYVILLE WATERWORKS | 1,069 | 0 |
| CASSVILLE WATERWORKS | 777 | 2 |
| MONTFORT WATERWORKS | 718 | 5 |
| POTOSI WATERWORKS | 718 | 3 |
| BLOOMINGTON WATERWORKS | 682 | 0 |
| LIVINGSTON WATERWORKS | 664 | 0 |
| KIELER SD NO 1 | 560 | 1 |
| TENNYSON WATERWORKS | 367 | 3 |
| BAGLEY WATERWORKS | 353 | 2 |
| FOUNTAIN PLAZA MHP | 186 | 1 |
| MOUNT HOPE WATERWORKS | 181 | 2 |
| PATCH GROVE WATERWORKS | 160 | 0 |
| STITZER SANITARY DIST 1 | 150 | 4 |
| MARYVILLE SD 2 | 100 | 1 |
| OAK PARK COMMUNITY | 90 | 3 |
| BLUFFSIDE COURT | 40 | 1 |
| STATELINE MOBILE HOME PARK | 37 | 6 |
| RIVER VISTA ESTATES LLC | 30 | 3 |
TRI Facilities (13)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Energizer Holdings Inc.-Fennimore | 361.2K lbs |
| 2 | Foremost Farms USA | 302.7K lbs |
| 3 | Scot Industries Inc | 96.7K lbs |
| 4 | Loudspeaker Components LLC | 70.0K lbs |
| 5 | Emmi Roth Platteville | 37.7K lbs |
| 6 | Safe Food Chemical Innovations-Kieler | 30.0K lbs |
| 7 | Muscoda Protein Products | 19.8K lbs |
| 8 | Milk Specialties Global-Boscobel | 4.8K lbs |
| 9 | Durr Universal Inc. | 42 lbs |
| 10 | Amcor Wisconsin LLC | 0 lbs |
| 11 | Skyline Homes | 0 lbs |
| 12 | Amcor Packaging Inc | 0 lbs |
| 13 | Saputo Cheese USA Inc. | 0 lbs |
Cities in Grant (6)
Frequently Asked Questions
What is the environmental risk level in Grant, Wisconsin? ▼
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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.