Walworth, 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 Walworth in Wisconsin · Population: 105,447
TRI sites such as Plymouth Tube Trent Plant; Brunk Industries Inc.; Getzen Co Inc.; SDWIS systems such as WHITEWATER WATERWORKS; ELKHORN WATERWORKS; DELAVAN WATERWORKS; NPL sites such as Delavan Municipal Well #4 anchor Walworth, WI's EPA extract. Derived burden score 49/100 (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 Walworth include ELKHORN WATERWORKS; BLOOMFIELD, VILLAGE OF; WILLIAMS BAY WATERWORKS, while Plymouth Tube Trent Plant leads reported TRI pounds among local Form R filers. AQS median AQI 42 / peak 100 in 2024.
Burden score 49/100 (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 Walworth -- 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 Walworth, WI: EPA TRI 2023 reporting year
Same facilities, both years
-17.3%
20 facilities that filed in 2022 and 2023
Whole inventory
-30.3%
39.3 thousand lb → 27.4 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Walworth, WI's total reported releases fell from 33.1 thousand lb in 2022 to 27.4 thousand lb in 2023, based on EPA TRI filings.
- Walworth, WI's off-site transfers fell from 21.6 thousand lb in 2022 to 17.6 thousand lb in 2023, based on EPA TRI filings.
- Walworth, WI's air releases fell from 10.8 thousand lb in 2022 to 9.1 thousand lb in 2023, based on EPA TRI filings.
- Walworth, WI's chemicals reported fell from 20 in 2022 to 19 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 | 169 (82%) | 37 | 0 | 100 |
| 2023 | 138 (68%) | 48 | 17 | 143 |
| 2022 | 181 (91%) | 16 | 3 | 105 |
| 2021 | 184 (83%) | 36 | 1 | 101 |
| 2020 | 180 (91%) | 14 | 4 | 136 |
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 (22)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| WHITEWATER WATERWORKS | 14,000 | 0 |
| ELKHORN WATERWORKS | 10,317 | 26 |
| DELAVAN WATERWORKS | 9,028 | 0 |
| EAST TROY WATERWORKS | 5,054 | 0 |
| BLOOMFIELD, VILLAGE OF | 4,071 | 8 |
| LAKE COMO SANITARY DIST 1 | 3,038 | 0 |
| WILLIAMS BAY WATERWORKS | 2,601 | 1 |
| WALWORTH WATERWORKS | 2,304 | 1 |
| GENEVA NATIONAL COMMUNITY SERVICES | 2,250 | 0 |
| DARIEN WATERWORKS | 1,573 | 0 |
| SHARON WATERWORKS | 1,549 | 6 |
| INTERLAKEN RESORT AND VILLAGE | 500 | 2 |
| COUNTY LINE ESTATES | 240 | 2 |
| TROY CENTER SANITARY DISTRICT | 170 | 0 |
| CAPRON MHP | 90 | 0 |
| TOWN HALL APTS | 90 | 0 |
| INSPIRATION MINISTRIES & MEADOWS APTS | 80 | 0 |
| VINTAGE ON THE PONDS | 60 | 0 |
| WOLFS MOBILE HOMES | 40 | 0 |
| EAST TROY S D 3 | 40 | 2 |
| ELIZABETH MANOR APTS | 30 | 0 |
| SNUG HARBOR INN MHP | 30 | 0 |
TRI Facilities (22)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Plymouth Tube Trent Plant | 89.1K lbs |
| 2 | Brunk Industries Inc. | 31.0K lbs |
| 3 | Getzen Co Inc. | 22.6K lbs |
| 4 | Hudapack Metal Treating Inc | 18.9K lbs |
| 5 | Conagra Foods Packaged Foods LLC | 16.4K lbs |
| 6 | Hexpol - Whitewater | 3.4K lbs |
| 7 | Stellana US | 1.4K lbs |
| 8 | Usg Interiors LLC | 1.3K lbs |
| 9 | R&l Spring Co | 1.1K lbs |
| 10 | Usg Structural Technologies LLC | 460 lbs |
| 11 | Wisconsin Precision Casting Corp | 113 lbs |
| 12 | Precision Plus Inc. | 102 lbs |
| 13 | Wisconsin Precision Casting Corp | 93 lbs |
| 14 | Applied Material Solutions Inc | 40 lbs |
| 15 | Coperion Process Solutions LLC | 18 lbs |
| 16 | Spx Flow US LLC | 13 lbs |
| 17 | Pentair Flow Technologies | 5 lbs |
| 18 | Exacto LLC | 5 lbs |
| 19 | Spx Flow US LLC | 4 lbs |
| 20 | Professional Power Products Inc | 0 lbs |
| 21 | Intertractor America Corp | 0 lbs |
| 22 | Iseli Precision LLC | 0 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Delavan Municipal Well #4 | NPL Site | 28.90 |
Cities in Walworth (11)
Frequently Asked Questions
What is the environmental risk level in Walworth, Wisconsin? ▼
Are there Superfund sites in Walworth? ▼
How many toxic release facilities are in Walworth? ▼
What is the air quality in Walworth? ▼
Is the drinking water safe in Walworth? ▼
What environmental agencies cover Walworth? ▼
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.