Brown, 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 Brown in Wisconsin · Population: 269,425
TRI sites such as Georgia-Pacific Broadway LLC; Carboline Global Inc.; Proampac; SDWIS systems such as DE PERE WATERWORKS SA 1; HOWARD WATERWORKS; ASHWAUBENON WATERWORKS; NPL sites such as Better Brite Plating Chrome & Zinc Shops anchor Brown, WI's EPA extract. Derived burden score 73/100 (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 Brown include HOWARD WATERWORKS; ALLOUEZ WATERWORKS; LEDGEVIEW TN SANITARY DIST 2, while Georgia-Pacific Broadway LLC leads reported TRI pounds among local Form R filers. AQS median AQI 37 / peak 87 in 2024.
Burden score 73/100 (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 Brown -- 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 Brown, WI: EPA TRI 2023 reporting year
Same facilities, both years
-11.2%
45 facilities that filed in 2022 and 2023
Whole inventory
-10.3%
911.9 thousand lb → 818.1 thousand lb, every facility that filed
Between the two reporting years, 3 facilities filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Brown, WI's total reported releases fell from 911.9 thousand lb in 2022 to 810.2 thousand lb in 2023, based on EPA TRI filings.
- Brown, WI's water releases fell from 288.1 thousand lb in 2022 to 230.6 thousand lb in 2023, based on EPA TRI filings.
- Brown, WI's air releases fell from 263.2 thousand lb in 2022 to 244.4 thousand lb in 2023, based on EPA TRI filings.
- Brown, WI's off-site transfers fell from 360.7 thousand lb in 2022 to 335.1 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 | 290 (79%) | 76 | 0 | 87 |
| 2023 | 216 (59%) | 136 | 8 | 179 |
| 2022 | 262 (73%) | 95 | 2 | 112 |
| 2021 | 231 (63%) | 131 | 3 | 125 |
| 2020 | 261 (71%) | 104 | 1 | 119 |
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 (21)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| DE PERE WATERWORKS SA 1 | 25,660 | 0 |
| HOWARD WATERWORKS | 21,133 | 4 |
| ASHWAUBENON WATERWORKS | 17,730 | 0 |
| BELLEVUE WATERWORKS | 16,715 | 0 |
| ALLOUEZ WATERWORKS | 13,923 | 3 |
| LEDGEVIEW TN SANITARY DIST 2 | 7,602 | 3 |
| LAWRENCE WATERWORKS | 5,398 | 0 |
| SUAMICO WATERWORKS | 4,697 | 2 |
| ONEIDA #1 OR SITE #1 | 4,393 | 0 |
| HOBART WATERWORKS S A 1 | 3,670 | 0 |
| SCOTT WATER UTILITY DIST | 1,875 | 0 |
| RIDGELAND | 691 | 0 |
| HOBART WATERWORKS S A 3 | 658 | 0 |
| GREENLEAF WATERWORKS | 650 | 0 |
| HOBART WATERWORKS S A 2 | 450 | 0 |
| DE PERE WATERWORKS SA 2 | 118 | 0 |
| HILLSIDE | 63 | 0 |
| HOBART WATERWORKS S A 4 | 53 | 0 |
| SAND HILL | 38 | 0 |
| ANNAS HOUSE | 32 | 0 |
| CENTRAL BROWN CO WATER AUTHORITY | 25 | 0 |
TRI Facilities (50)
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Better Brite Plating Chrome & Zinc Shops | NPL Site | 48.91 |
Cities in Brown (11)
Frequently Asked Questions
What is the environmental risk level in Brown, Wisconsin? ▼
Are there Superfund sites in Brown? ▼
How many toxic release facilities are in Brown? ▼
What is the air quality in Brown? ▼
Is the drinking water safe in Brown? ▼
What environmental agencies cover Brown? ▼
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.