Wisconsin
Brown County drinking water quality
148 active public water systems serve 246,754 people in Brown County. 113 are compliant, 35 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
22 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Green Bay Waterworks Green Bay |
107,369 | 0 | 0 | |
|
DE Pere Waterworks SA 1 De Pere |
25,660 | 0 | 0 | |
|
Howard Waterworks Green Bay |
21,133 | 3 | 0 | |
|
Ashwaubenon Waterworks Green Bay |
17,730 | 1 | 0 | |
|
Bellevue Waterworks Green Bay |
16,715 | 2 | 1 | |
|
Allouez Waterworks Green Bay |
13,923 | 2 | 0 | |
|
Ledgeview TN Sanitary Dist 2 De Pere |
7,602 | 2 | 0 | |
|
Lawrence Waterworks De Pere |
5,398 | 0 | 0 | |
|
Suamico Waterworks Suamico |
4,697 | 0 | 0 | |
|
Pulaski Waterworks Pulaski |
4,040 | 0 | 0 | |
|
Wrightstown Waterworks Wrightstown |
3,815 | 1 | 0 | |
|
Hobart Waterworks S a 1 Hobart |
3,758 | 1 | 0 | |
|
Denmark Waterworks Denmark |
2,684 | 3 | 1 | |
|
Scott Water Utility Dist New Franken |
1,875 | 0 | 0 | |
|
Hobart Waterworks S a 3 Hobart |
820 | 1 | 0 | |
|
Greenleaf Waterworks Greenleaf |
650 | 0 | 0 | |
|
Holland TN Sanitary Dist Town Of Holland |
495 | 1 | 1 | |
|
Hobart Waterworks S a 2 Hobart |
450 | 1 | 0 | |
|
DE Pere Waterworks SA 2 De Pere |
118 | 0 | 0 | |
|
Hobart Waterworks S a 4 Hobart |
68 | 3 | 1 | |
|
Annas House New Franken |
32 | 1 | 0 | |
|
Central Brown CO Water Authority Allouez |
25 | 0 | 0 |
Non-community systems (126: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (153, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Wisconsin records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.