County · Wisconsin
Green County, Wisconsin: drinking water records
This overview covers 7 ZIP codes and 10 community water systems in Green County. It also stands in for 1 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 |
|---|---|---|---|---|---|
| Monroe Waterworks WI1230078 | 10,780 | 300 | 0 | 0 | 4.7 ppb |
| New Glarus Waterworks WI1230084 | 2,348 | 0 | 0 | 1 | 0 ppb |
| Monticello Waterworks WI1230083 | 1,217 | 0 | 0 | 1 | 0.3 ppb |
| Pleasant View Nursing Home WI1230081 | 260 | 0 | 0 | 1 | 2.5 ppb |
| Browntown Waterworks WI1230077 | 256 | 0 | 0 | 2 | 2.5 ppb |
| Brodhead Waterworks WI1230072 | 3,216 | 0 | 0 | 0 | 1.0 ppb |
| Belleville Waterworks WI1130209 | 2,712 | 0 | 0 | 0 | 1.5 ppb |
| Brooklyn Waterworks WI1230075 | 1,524 | 0 | 0 | 0 | 0.8 ppb |
| Albany Waterworks WI1230071 | 1,018 | 0 | 0 | 0 | 0.6 ppb |
| Van-Gogh Homes LLC WI1230076 | 46 | 0 | 0 | 0 | 2.7 ppb |
ZIP reports in Green County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 53550.
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.