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National Drinking Water Database

Combined Radium (-226 & -228) in Wisconsin

Radium is a radioactive element usually found around uranium deposits. [read more]

The Most Polluted Communities in Wisconsin

218 water utilities reported detecting Combined Radium (-226 & -228) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Combined Radium (-226 & -228) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Franklin Water Utility
Franklin, WI
22,5001 of 18.35 pCi/L
(8.35 pCi/L)
2Holland TN Sanitary Dist
Town Of Holland, WI
4504 of 47.15 pCi/L
(4.1 to 10.2 pCi/L)
3Brookfield Hills Apartments
Brookfield, WI
7001 of 16.6 pCi/L
(6.6 pCi/L)
4Little Chute Waterworks
Little Chute, WI
10,8231 of 16.2 pCi/L
(6.2 pCi/L)
5Burlington Waterworks
Burlington, WI
9,9582 of 25.85 pCi/L
(4.9 to 6.8 pCi/L)
6Geneva National Golf Club
Lake Geneva, WI
1,25010 of 105.66 pCi/L
(0.16 to 14.8 pCi/L)
7Town of Bristol Waterworks
Bristol, WI
5984 of 45.5 pCi/L
(0.3 to 7.6 pCi/L)
8Whitnall Garden Apartments
Hales Corners, WI
2004 of 45.5 pCi/L
(5.2 to 5.9 pCi/L)
9Ledgeview TN Sanitary Dist #2
De Pere, WI
3,5187 of 75.41 pCi/L
(4.7 to 6.6 pCi/L)
10Waupun Public Utilities
Waupun, WI
8,5315 of 55.38 pCi/L
(4.9 to 6.1 pCi/L)

Health Based Limits for Combined Radium (-226 & -228)

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 pCi/L
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.5 pCi/L

Violation Summary for Combined Radium (-226 & -228) in Wisconsin

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Wisconsin since 2004

Violation TypeNumber of Violations
Failure to monitor regularly1