Consumer Confidence Rule (CCR) violations in Wisconsin
9 active public water systems in Wisconsin had a Consumer Confidence Rule (CCR) violation in the past three years, 9 of them in the latest quarter of EPA's data. What Consumer Confidence Rule (CCR) is and why it matters.
Systems with a Consumer Confidence Rule (CCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Montello Waterworks Montello · Marquette County |
1,329 | 4 | 1 | |
|
Whitelaw Waterworks Whitelaw · Manitowoc County |
757 | 3 | 1 | |
|
Hale Park Meadows Muskego · Waukesha County |
720 | 1 | 1 | |
|
Port Wing Sanitary District Port Wing · Bayfield County |
400 | 1 | 1 | |
|
Bains Country Estates MHP Sheboygan Falls · Sheboygan County |
200 | 4 | 1 | |
|
Norris INC Mukwonago · Waukesha County |
141 | 5 | 4 | |
|
Manitou Falls Sanitary District NO 1 Superior · Douglas County |
95 | 10 | 5 | |
|
Mauston Green Acres Mauston · Juneau County |
40 | 3 | 2 | |
|
Shady Oaks MHP Menomonie · Dunn County |
40 | 4 | 3 |
About this data
A system is counted once if any of its violations in the past three years involved Consumer Confidence Rule (CCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Consumer Confidence Rule (CCR) alone.
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.