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Tap water quality report

Wisconsin

Across Wisconsin's 831 community water suppliers, 1% exceed the EPA lead action level and 1.9% have detectable PFAS.

1%
exceed lead action level
(8/828 suppliers)
1.9%
PFOA/PFOS detected
(1/54 suppliers)
831
water suppliers
Lead by supplier PFAS by supplier

Largest water suppliers

Lead is the LCR 90th-percentile result; a value above 0.015 mg/L exceeds the EPA action level. “—” means no lead sample is on file for that supplier.
SupplierCityPopulationLead (p90)
Milwaukee Waterworks Milwaukee 626,000 0.0053 mg/L
Green Bay Waterworks Green Bay 107,369 0.0025 mg/L
Racine Waterworks Racine 105,100 0.0033 mg/L
Kenosha Water Utility Kenosha 99,218 0.0041 mg/L
Appleton Waterworks Menasha 74,511 0.0013 mg/L
West Allis Waterworks West Allis 63,240 0.0024 mg/L
Oshkosh Waterworks Oshkosh 63,000 0.0061 mg/L
Sheboygan Water Utilities Sheboygan 49,931 0.0022 mg/L
Wauwatosa Waterworks Wauwatosa 49,064 0.0084 mg/L
North Shore Water Commission Glendale 35,598 0.0110 mg/L
Manitowoc Waterworks Manitowoc 34,500 0.0077 mg/L
Oak Creek Waterworks Oak Creek 32,104 0.0020 mg/L
Neenah Waterworks Neenah 27,506 0.0100 mg/L
Stevens Point Waterworks Stevens Point 26,717 0.0024 mg/L
Superior Water Light & Power Company Superior 26,084 0.0056 mg/L
De Pere Waterworks Sa 1 De Pere 25,660 0.0007 mg/L
Fitchburg Utility Dist 1 Fitchburg 24,500 0.0023 mg/L
Watertown Waterworks Watertown 23,945 0.0110 mg/L
Menomonee Falls Ww - Surface Water Menomonee Falls 23,867 0.0021 mg/L
Franklin Water Utility Franklin 22,500 0.0030 mg/L
Caledonia Water Utility - Village of Caledonia 21,819 0.0033 mg/L
Grand Chute Tn San Dist 1 Grand Chute 21,583 0.0031 mg/L
South Milwaukee Waterworks South Milwaukee 21,340 0.0077 mg/L
Howard Waterworks Green Bay 21,133 0.0012 mg/L
Germantown Water Utility Germantown 20,027 0.0017 mg/L
Marshfield Utilities Marshfield 18,815 0.0082 mg/L
Cudahy Waterworks Cudahy 18,659 0.0130 mg/L
Onalaska Waterworks Onalaska 18,000 0.0000 mg/L
Ashwaubenon Waterworks Green Bay 17,730 0.0034 mg/L
Bellevue Waterworks Green Bay 16,715 0.0027 mg/L
Beaver Dam Water Utility Beaver Dam 16,200 0.0113 mg/L
River Falls Waterworks River Falls 16,000 0.0009 mg/L
Hartford Waterworks Hartford 15,805 0.0009 mg/L
Menasha Elec & Water Util Menasha 15,144 0.0011 mg/L
Greendale Waterworks Greendale 14,393 0.0003 mg/L
Whitefish Bay Waterworks Whitefish Bay 14,272 0.0047 mg/L
Verona Waterworks Verona 14,030 0.0029 mg/L
Fox Crossing Utilities West Neenah 14,000 0.0018 mg/L
Whitewater Waterworks Whitewater 14,000 0.0100 mg/L
Allouez Waterworks Green Bay 13,923 0.0059 mg/L
Shorewood Waterworks Shorewood 13,535 0.0032 mg/L
Plover Waterworks Plover 13,486 0.0038 mg/L
Stoughton Waterworks Stoughton 13,078 0.0042 mg/L
Darboy Sanitary Dist 1 Appleton 13,024 0.0005 mg/L
Glendale Waterworks Glendale 12,883 0.0017 mg/L
Port Washington Waterworks Port Washington 12,853 0.0059 mg/L
Brown Deer Waterworks Brown Deer 12,741 0.0009 mg/L
Baraboo Waterworks Baraboo 12,703 0.0081 mg/L
Cedarburg L & W Commission Cedarburg 12,500 0.0076 mg/L
Grafton Waterworks Grafton 12,269 0.0033 mg/L
Platteville Waterworks Platteville 12,268 0.0103 mg/L
Greenville Utilities Vil of Greenville 11,340 0.0075 mg/L
Two Rivers Waterworks Two Rivers 11,270 0.0130 mg/L
Oregon Waterworks Oregon 11,200 0.0050 mg/L
Mequon Water Utility Mequon 11,152 0.0005 mg/L
Burlington Waterworks Burlington 11,043 0.0150 mg/L
Marinette Waterworks Marinette 10,968 0.0009 mg/L
Fox Crossing Utilities East Neenah 10,927 0.0051 mg/L
New Richmond Waterworks New Richmond 10,824 0.0015 mg/L
Monroe Waterworks Monroe 10,780 0.0047 mg/L
Pleasant Prairie Water Utility Pleasant Prairie 10,754 0.0009 mg/L
Portage Waterworks Portage 10,437 0.0062 mg/L
Elkhorn Waterworks Elkhorn 10,317 0.0140 mg/L
Sturgeon Bay Waterworks Sturgeon Bay 9,700 0.0036 mg/L
Mcfarland Waterworks Mc Farland 9,676 0.0021 mg/L
Merrill Waterworks Merrill 9,661 0.0003 mg/L
Altoona Waterworks Altoona 9,627 0.0010 mg/L
Shawano Waterworks Shawano 9,610 0.0037 mg/L
Cottage Grove Waterworks Cottage Grove 9,345 0.0023 mg/L
Hartland Waterworks Hartland 9,212 0.0042 mg/L
Delavan Waterworks Delavan 9,028 0.0100 mg/L
Rice Lake Waterworks Rice Lake 9,012 0.0010 mg/L
Plymouth Utilities Plymouth 8,964 0.0062 mg/L
Sheboygan Falls Utilities Sheboygan Falls 8,687 0.0054 mg/L
Pewaukee City Water and Sewer Utility Pewaukee 8,671 0.0026 mg/L
Monona Waterworks Monona 8,624 0.0028 mg/L
Rhinelander Water & Wastewater Rhinelander 8,234 0.0010 mg/L
Pewaukee Village Waterworks Pewaukee 8,166 0.0000 mg/L
Waupun Utilities Waupun 8,056 0.0012 mg/L
Ashland Water Utility Ashland 8,000 0.0065 mg/L
Jefferson Waterworks Jefferson 7,926 0.0035 mg/L
Jackson Waterworks Jackson 7,844 0.0024 mg/L
Antigo Waterworks Antigo 7,780 0.0019 mg/L
Mt Horeb Waterworks Mount Horeb 7,756 0.0030 mg/L
Kimberly Waterworks Kimberly 7,608 0.0130 mg/L
Ledgeview Tn Sanitary Dist 2 De Pere 7,602 0.0021 mg/L
New London Waterworks New London 7,187 0.0130 mg/L
Kronenwetter Water & Sewer Utility Kronenwetter 6,931 0.0008 mg/L
Fox Point Waterworks Fox Point 6,808 0.0074 mg/L
Lake Hallie Waterworks Village of Chippewa Falls 6,701 0.0012 mg/L
Town of Brookfield San Dist 4 Brookfield 6,419 0.0034 mg/L
Rib Mountain Water Utility Wausau 6,398 0.0024 mg/L
Lake Mills Waterworks Lake Mills 6,211 0.0046 mg/L
Slinger Water Utility Slinger 5,659 0.0031 mg/L
Milton Waterworks Milton 5,588 0.0015 mg/L
Berlin Waterworks Berlin 5,524 0.0006 mg/L
Edgerton Waterworks Edgerton 5,512 0.0028 mg/L
Harrison Utilities - Fka Waverly Sd Menasha 5,500 0.0000 mg/L
North Fond Du Lac Waterworks North Fond Du Lac 5,414 0.0091 mg/L
Lawrence Waterworks De Pere 5,398 0.0000 mg/L