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National Drinking Water Database

Lead (total) in Wisconsin

Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits. [read more]

The Most Polluted Communities in Wisconsin

1,654 water utilities reported detecting Lead (total) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Lead (total) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Rock River Shores
Beloit, WI
753 of 326.36 ppb
(6.5 to 37.68 ppb)
2DE Soto High-Middle School
De Soto, WI
4036 of 625.49 ppb
(2.73 to 132 ppb)
3Genoa City Waterworks
Genoa City, WI
2,0603 of 324.56 ppb
(15.55 to 31.3 ppb)
4Athens Waterworks
Athens, WI
1,1021 of 123.71 ppb
(23.71 ppb)
5Eagle Waterworks
Eagle, WI
1,72814 of 1417.94 ppb
(1.85 to 49.77 ppb)
6First Congreg United Church of Christ
Watertown, WI
3013 of 317.81 ppb
(2.5 to 47.47 ppb)
7New Hope Community Church
Wausau, WI
3603 of 317.75 ppb
(10.5 to 26.65 ppb)
8Elm Grove Luth CH & Schl Gym
Elm Grove, WI
3504 of 416.6 ppb
(4.72 to 29.7 ppb)
9Dane Waterworks
Dane, WI
95415 of 1616.42 ppb
(0 to 149 ppb)
10Luxemburg Waterworks
Luxemburg, WI
2,2921 of 115.97 ppb
(15.97 ppb)

Health Based Limits for Lead (total)

Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.2 ppb

Violation Summary for Lead (total) in Wisconsin

There are no violations reported for this contaminant in Wisconsin