Fond Du Lac, 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 Fond Du Lac in Wisconsin · Population: 104,053
Fond Du Lac, WI is tracked across three EPA datasets covering 17 Toxics Release Inventory (TRI) facilities, 14 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 44/100 (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 2.1M lbs of reported toxic releases under EPCRA Section 313, while 4 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 38 and a peak AQI of 77 in 2024, with 93% 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 | 190 (93%) | 15 | 0 | 77 |
| 2023 | 162 (79%) | 38 | 4 | 122 |
| 2022 | 193 (95%) | 9 | 1 | 108 |
| 2021 | 178 (86%) | 30 | 0 | 90 |
| 2020 | 194 (95%) | 9 | 2 | 115 |
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 (14)
| System | Population | Violations |
|---|---|---|
| WAUPUN UTILITIES | 8,056 | 0 |
| RIPON WATER UTILITY | 7,716 | 1 |
| NORTH FOND DU LAC WATERWORKS | 5,014 | 4 |
| CAMPBELLSPORT WATERWORKS | 1,825 | 1 |
| OAKFIELD WATERWORKS | 1,058 | 0 |
| ASHWOOD GROVE EDGEWATER | 1,046 | 0 |
| FOND DU LAC TN WATER UTILITY | 980 | 1 |
| BRANDON WATERWORKS | 872 | 0 |
| ST CLOUD WATERWORKS | 494 | 0 |
| MOUNT CALVARY WATERWORKS | 478 | 0 |
| FAIRWATER WATERWORKS | 365 | 0 |
| MARY HILL PARK SANITARY DIST | 65 | 0 |
| COLONIAL GARDENS HOMES | 48 | 0 |
| ELMORE HEIGHTS TRAILER COURT | 30 | 0 |
TRI Facilities (17)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Actus Nutrition-Fond Du Lac | 680.7K lbs |
| 2 | Saputo Cheese USA Inc | 431.5K lbs |
| 3 | Western Lime Eden Facility - Lime Production | 326.0K lbs |
| 4 | Sargento Cheese Inc - St. Cloud | 285.9K lbs |
| 5 | Brunswick Corp Mercury Marine Div | 161.5K lbs |
| 6 | U.S. Chrome Corp. of Wisconsin | 82.5K lbs |
| 7 | Alliance Laundry Systems LLC | 44.4K lbs |
| 8 | Fives Giddings & Lewis LLC | 43.0K lbs |
| 9 | Central Wire Inc | 26.3K lbs |
| 10 | Alliance Laundry Systems LLC Stanton Plant | 3.0K lbs |
| 11 | Brenner Tank LLC | 100 lbs |
| 12 | South Fond Du Lac Energy Center | 18 lbs |
| 13 | Rb Royal Industries Inc. | 2 lbs |
| 14 | Wells Vehicle Electronics L.P. | 1 lbs |
| 15 | Bci Burke Co LLC | 0 lbs |
| 16 | Seneca Foods Corp | 0 lbs |
| 17 | Belgioioso Cheese - Byron Plant | 0 lbs |
Cities in Fond Du Lac (6)
Frequently Asked Questions
What is the environmental risk level in Fond Du Lac, Wisconsin? ▼
Are there Superfund sites in Fond Du Lac? ▼
How many toxic release facilities are in Fond Du Lac? ▼
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Is the drinking water safe in Fond Du Lac? ▼
What environmental agencies cover Fond Du Lac? ▼
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.