County · Wisconsin
Brown County, Wisconsin: drinking water records
This overview covers 14 ZIP codes and 22 community water systems in Brown County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Howard Waterworks WI4050468 | 21,133 | 240 | 0 | 2 | 1.2 ppb |
| Allouez Waterworks WI4050455 | 13,923 | 120 | 0 | 1 | 5.9 ppb |
| Ledgeview Tn Sanitary Dist 2 WI4051418 | 7,602 | 180 | 0 | 2 | 2.1 ppb |
| Suamico Waterworks WI4051031 | 4,697 | 120 | 0 | 1 | 1.1 ppb |
| Denmark Waterworks WI4050351 | 2,684 | 120 | 0 | 1 | 0.7 ppb |
| Green Bay Waterworks WI4050356 | 107,369 | 120 | 0 | 0 | 2.5 ppb |
| De Pere Waterworks Sa 1 WI4050453 | 25,660 | 120 | 0 | 0 | 0.7 ppb |
| Ashwaubenon Waterworks WI4050456 | 17,730 | 120 | 0 | 0 | 3.4 ppb |
| Bellevue Waterworks WI4050459 | 16,715 | 120 | 0 | 0 | 2.7 ppb |
| Lawrence Waterworks WI4051625 | 5,398 | 120 | 0 | 0 | 0 ppb |
| Pulaski Waterworks WI4050355 | 4,040 | 120 | 0 | 0 | 0.8 ppb |
| Wrightstown Waterworks WI4050464 | 3,815 | 0 | 0 | 1 | 0 ppb |
| Holland Tn Sanitary Dist WI4050726 | 495 | 0 | 0 | 1 | 0 ppb |
| Hobart Waterworks S a 1 WI4051698 | 3,670 | 0 | 0 | 0 | 2.3 ppb |
| Scott Water Utility Dist WI4050071 | 1,875 | 0 | 0 | 0 | 1.8 ppb |
| Hobart Waterworks S a 3 WI4052077 | 658 | 0 | 0 | 0 | 0.9 ppb |
| Greenleaf Waterworks WI4050466 | 650 | 0 | 0 | 0 | 2.4 ppb |
| Hobart Waterworks S a 2 WI4051769 | 450 | 0 | 0 | 0 | 1.5 ppb |
| De Pere Waterworks Sa 2 WI4052638 | 118 | 0 | 0 | 0 | 0 ppb |
| Hobart Waterworks S a 4 WI4052639 | 53 | 0 | 0 | 0 | 0.3 ppb |
| Annas House WI4051141 | 32 | 0 | 0 | 0 | 0 ppb |
| Central Brown Co Water Authority WI4360287 | 25 | 0 | 0 | 0 | not reported |
ZIP reports in Brown County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.