Winnebago, 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. 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 Winnebago in Wisconsin · Population: 171,357
TRI sites such as Neenah Foundry Co Neenah Operations; Essity Professional Hygiene N.a. LLC; Galloway Co; SDWIS systems such as NEENAH WATERWORKS; FOX CROSSING UTILITIES WEST; FOX CROSSING UTILITIES EAST anchor Winnebago, WI's EPA extract. Derived burden score 60/100 (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 Winnebago include NEENAH WATERWORKS; FOX CROSSING UTILITIES WEST; FOX CROSSING UTILITIES EAST, while Neenah Foundry Co Neenah Operations leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 60/100 (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 Winnebago -- 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 Winnebago, WI: EPA TRI 2023 reporting year
Same facilities, both years
+26.8%
27 facilities that filed in 2022 and 2023
Whole inventory
+26.8%
699.4 thousand lb → 886.7 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Winnebago, WI's total reported releases rose from 699.4 thousand lb in 2022 to 886.7 thousand lb in 2023, based on EPA TRI filings.
- Winnebago, WI's off-site transfers rose from 461.1 thousand lb in 2022 to 621.9 thousand lb in 2023, based on EPA TRI filings.
- Winnebago, WI's water releases fell from 870 lb in 2022 to 573 lb in 2023, based on EPA TRI filings.
- Winnebago, WI's air releases rose from 237.4 thousand lb in 2022 to 264.2 thousand lb in 2023, based on EPA TRI filings.
Water Systems (8)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| NEENAH WATERWORKS | 27,506 | 2 |
| FOX CROSSING UTILITIES WEST | 14,000 | 1 |
| FOX CROSSING UTILITIES EAST | 10,927 | 1 |
| ALGOMA TN SANITARY DIST 1 | 3,935 | 0 |
| WINNECONNE WATERWORKS | 2,502 | 32 |
| WISCONSIN VETERANS HOME | 1,240 | 0 |
| WINNEBAGO AREA SANITARY DISTRICT | 90 | 0 |
| SILVERCREST APARTMENTS | 51 | 0 |
TRI Facilities (34)
Cities in Winnebago (4)
Frequently Asked Questions
What is the environmental risk level in Winnebago, Wisconsin? ▼
Are there Superfund sites in Winnebago? ▼
How many toxic release facilities are in Winnebago? ▼
What is the air quality in Winnebago? ▼
Is the drinking water safe in Winnebago? ▼
What environmental agencies cover Winnebago? ▼
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.