Fond Du Lac, WI
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 Fond Du Lac in Wisconsin · Population: 104,053
TRI sites such as Actus Nutrition-Fond Du Lac; Saputo Cheese USA Inc; Western Lime Eden Facility - Lime Production; SDWIS systems such as WAUPUN UTILITIES; NORTH FOND DU LAC WATERWORKS; FOND DU LAC TN WATER UTILITY; NPL sites such as Ripon City Landfill anchor Fond Du Lac, WI's EPA extract. Derived burden score 43/100 (Moderate 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 Fond Du Lac include NORTH FOND DU LAC WATERWORKS; FOND DU LAC TN WATER UTILITY, while Actus Nutrition-Fond Du Lac leads reported TRI pounds among local Form R filers. AQS median AQI 38 / peak 77 in 2024.
Burden score 43/100 (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 Fond Du Lac -- 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 Fond Du Lac, WI: EPA TRI 2023 reporting year
Same facilities, both years
-8.4%
14 facilities that filed in 2022 and 2023
Whole inventory
-8.4%
416.5 thousand lb → 381.7 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Fond Du Lac, WI's total reported releases fell from 416.5 thousand lb in 2022 to 381.7 thousand lb in 2023, based on EPA TRI filings.
- Fond Du Lac, WI's air releases fell from 87.5 thousand lb in 2022 to 75.7 thousand lb in 2023, based on EPA TRI filings.
- Fond Du Lac, WI's water releases fell from 149.2 thousand lb in 2022 to 136.7 thousand lb in 2023, based on EPA TRI filings.
- Fond Du Lac, WI's off-site transfers fell from 179.8 thousand lb in 2022 to 169.4 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 | 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 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 (6)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| WAUPUN UTILITIES | 8,056 | 0 |
| NORTH FOND DU LAC WATERWORKS | 5,414 | 6 |
| FOND DU LAC TN WATER UTILITY | 980 | 1 |
| BRANDON WATERWORKS | 872 | 0 |
| MARY HILL PARK SANITARY DIST | 65 | 0 |
| COLONIAL GARDENS HOMES | 48 | 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 |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Ripon City Landfill | NPL Site | 39.04 |
Cities in Fond Du Lac (8)
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? ▼
What is the air quality in Fond Du Lac? ▼
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.