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Lead in Wisconsin drinking water

828 community water systems tested

7.2%
of tested systems exceeded the lead action level
(60/828)

Lead is a neurotoxin with no known safe level. It usually enters water from old service lines and household plumbing rather than the source, so results vary system to system. The EPA acts when the 90th-percentile sample exceeds 0.015 mg/L.

Water systems

Lead value per system, LCR compliance samples. EPA action level — 0.015 mg/L at the 90th percentile. Systems that exceeded the lead action level are highlighted and listed first. “Not detected” means the contaminant was measured but not found.
SystemCityPopulationLead (mg/L)
ACORN ACRES MHP OLNEY 52 0.1527 mg/L
LAKE MILLS WATERWORKS LAKE MILLS 6,211 0.1010 mg/L
ASPEN RIDGE MARENGO 50 0.0537 mg/L
ELKHORN WATERWORKS ELKHORN 10,317 0.0452 mg/L
KELLNERSVILLE WATERWORKS KELLNERSVILLE 301 0.0421 mg/L
ASHLAND WATER UTILITY ASHLAND 8,000 0.0417 mg/L
RIVER GARDEN APTS THIENSVILLE 25 0.0415 mg/L
PEARCES MOBILE HOME ESTATES MAUSTON 37 0.0353 mg/L
EAGLE WATERWORKS EAGLE 1,950 0.0343 mg/L
MUSCODA WATERWORKS MUSCODA 1,453 0.0332 mg/L
BLACK RIVER FALLS WATERWORKS BLACK RIVER FALLS 3,608 0.0312 mg/L
MARATHON CITY WATERWORKS MARATHON CITY 1,695 0.0287 mg/L
SCHOENSTATT SISTERS OF MARY WAUKESHA 80 0.0279 mg/L
NU ROC HEALTH AND REHABILITATION CENTER LAONA 86 0.0271 mg/L
BROCKWAY SANITARY DIST 1 BLACK RIVER FALLS 2,692 0.0250 mg/L
CHILTON WATERWORKS CHILTON 4,191 0.0248 mg/L
SCHOFIELD WATERWORKS SCHOFIELD 2,205 0.0248 mg/L
MANAWA WATERWORKS MANAWA 1,300 0.0244 mg/L
GREEN LAKE WATERWORKS GREEN LAKE 1,002 0.0224 mg/L
JEFFERSON WATERWORKS JEFFERSON 7,926 0.0224 mg/L
NORTH SHORE WATER COMMISSION GLENDALE 35,598 0.0219 mg/L
THORP WATERWORKS THORP 1,636 0.0216 mg/L
CEDAR LAKE HOME 5 WEST BEND 330 0.0215 mg/L
WISCONSIN VETERANS HOME KING 1,240 0.0214 mg/L
PLYMOUTH UTILITIES PLYMOUTH 8,964 0.0208 mg/L
BEAVER DAM WATER UTILITY BEAVER DAM 16,200 0.0207 mg/L
NEENAH WATERWORKS NEENAH 27,506 0.0204 mg/L
FRIESLAND WATERWORKS FRIESLAND 345 0.0200 mg/L
RACINE WATERWORKS RACINE 105,100 0.0191 mg/L
KOHLER WATERWORKS KOHLER 2,271 0.0190 mg/L
JOHNSON CREEK WATERWORKS JOHNSON CREEK 3,318 0.0188 mg/L
MILWAUKEE WATERWORKS MILWAUKEE 626,000 0.0186 mg/L
WAUWATOSA WATERWORKS WAUWATOSA 49,064 0.0186 mg/L
WATERLOO WATERWORKS WATERLOO 3,520 0.0183 mg/L
PEPIN WATERWORKS PEPIN 816 0.0181 mg/L
GREEN BAY WATERWORKS GREEN BAY 107,369 0.0180 mg/L
KIEL WATERWORKS KIEL 3,932 0.0180 mg/L
EMBARRASS WATERWORKS EMBARRASS 347 0.0179 mg/L
MELROSE WATERWORKS MELROSE 524 0.0177 mg/L
MARIAN HEIGHTS SUBDIVISION ELM GROVE 400 0.0174 mg/L
SPENCER WATERWORKS SPENCER 1,848 0.0170 mg/L
STOUGHTON WATERWORKS STOUGHTON 13,078 0.0170 mg/L
TWO RIVERS WATERWORKS TWO RIVERS 11,270 0.0170 mg/L
OCONTO FALLS WATERWORKS OCONTO FALLS 2,892 0.0170 mg/L
MENASHA ELEC & WATER UTIL MENASHA 15,144 0.0164 mg/L
LODI WATERWORKS LODI 3,146 0.0164 mg/L
RAVINE FARMS HM OWNERS ASSOC MEQUON 100 0.0163 mg/L
SHARON WATERWORKS SHARON 1,549 0.0162 mg/L
SHADY OAKS MHP MENOMONIE 40 0.0161 mg/L
DONS MOBILE MANOR WAUNAKEE 160 0.0160 mg/L
WATERTOWN WATERWORKS WATERTOWN 23,945 0.0160 mg/L
ELKHART LAKE WATERWORKS ELKHART LAKE 1,567 0.0160 mg/L
WI AIR NATIONAL GUARD VOLK FIELD CAMP DOUGLAS 400 0.0158 mg/L
EDGERTON WATERWORKS EDGERTON 5,512 0.0156 mg/L
MINERAL POINT WATERWORKS MINERAL POINT 2,487 0.0155 mg/L
MT HOREB WATERWORKS MOUNT HOREB 7,756 0.0154 mg/L
UNION CENTER WATERWORKS UNION CENTER 225 0.0154 mg/L
MENOMONEE FALLS WW - SURFACE WATER MENOMONEE FALLS 23,867 0.0153 mg/L
NORTH FOND DU LAC WATERWORKS NORTH FOND DU LAC 5,414 0.0152 mg/L
PINE VALLEY COMMUNITY VILLAGE RICHLAND CENTER 225 0.0150 mg/L
BERLIN WATERWORKS BERLIN 5,524 0.0150 mg/L
WEYAUWEGA WATERWORKS WEYAUWEGA 1,820 0.0150 mg/L
OSSEO WATERWORKS OSSEO 1,701 0.0150 mg/L
HILBERT WATERWORKS HILBERT 1,176 0.0150 mg/L
MARSHFIELD UTILITIES MARSHFIELD 18,815 0.0150 mg/L
WESTSHIRE FARMS AT THE LAKES DELAVAN 300 0.0149 mg/L
TAMARACK HEALTH HAYWARD MEDICAL CENTER HAYWARD 85 0.0148 mg/L
CEDAR LAKE HOME 9 WEST BEND 206 0.0148 mg/L
ATHENS WATERWORKS ATHENS 1,025 0.0147 mg/L
ST JOHNS NORTHWESTERN ACADEMIES DELAFIELD 340 0.0146 mg/L
SHOREWOOD WATERWORKS SHOREWOOD 13,535 0.0146 mg/L
WHITEWATER WATERWORKS WHITEWATER 14,000 0.0145 mg/L
MANITOWOC WATERWORKS MANITOWOC 34,500 0.0145 mg/L
BLUFFVIEW SANITARY DISTRICT PRAIRIE DU SAC 450 0.0144 mg/L
COUNTRY VINEYARD 4 OREGON 28 0.0144 mg/L
SUPERIOR WATER LIGHT & POWER COMPANY SUPERIOR 26,084 0.0144 mg/L
SHAWANO WATERWORKS SHAWANO 9,610 0.0143 mg/L
ARGYLE WATERWORKS ARGYLE 823 0.0143 mg/L
CUDAHY WATERWORKS CUDAHY 18,659 0.0142 mg/L
CASSVILLE WATERWORKS CASSVILLE 777 0.0141 mg/L
REDGRANITE WATERWORKS REDGRANITE 2,019 0.0141 mg/L
AMANI VILLAGE SANITARY DIST OSCEOLA 100 0.0141 mg/L
NEW POST 150 0.0140 mg/L
MONTELLO WATERWORKS MONTELLO 1,329 0.0140 mg/L
MONROE WATERWORKS MONROE 10,780 0.0138 mg/L
KETTLE MORAINE CORRECTIONAL INSTITUTION PLYMOUTH 1,544 0.0137 mg/L
REEDSVILLE WATERWORKS REEDSVILLE 1,200 0.0137 mg/L
FULTON UTILITY DISTRICT EDGERTON 200 0.0136 mg/L
RANDOLPH WATER DEPT RANDOLPH 1,800 0.0135 mg/L
HARTLAND WATERWORKS HARTLAND 9,212 0.0135 mg/L
FRIENDSHIP WATERWORKS FRIENDSHIP 781 0.0134 mg/L
MILLADORE WATERWORKS MILLADORE 280 0.0134 mg/L
LONE ROCK WATERWORKS LONE ROCK 895 0.0134 mg/L
STURGEON BAY WATERWORKS STURGEON BAY 9,700 0.0133 mg/L
BURLINGTON WATERWORKS BURLINGTON 11,043 0.0132 mg/L
STANLEY WATERWORKS STANLEY 3,500 0.0132 mg/L
DELAFIELD WATERWORKS DELAFIELD 300 0.0131 mg/L
SOUTH MILWAUKEE WATERWORKS SOUTH MILWAUKEE 21,340 0.0131 mg/L
NEW HOLSTEIN WATERWORKS NEW HOLSTEIN 3,012 0.0131 mg/L
JUNEAU WATERWORKS JUNEAU 2,627 0.0130 mg/L