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National Drinking Water Database


Benzene in Wisconsin


Benzene is a petroleum chemical that contaminates drinking water due to emissions from petroleum and chemical industries, leaching landfills and gas storage tanks. [read more]

The Most Polluted Communities in Wisconsin

26 water utilities reported detecting Benzene in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Benzene level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Menards Midwest Mfg Admin Bldg
Eau Claire, WI
1002 of 51.56 ppb
(0 to 5.1 ppb)
2Withee Waterworks
Withee, WI
51411 of 120.71 ppb
(0 to 1.29 ppb)
3Faith Community Church/School
Fort Atkinson, WI
4681 of 40.35 ppb
(0 to 1.4 ppb)
4Vetesnik Power Sports
Richland Center, WI
804 of 70.33 ppb
(0 to 1.4 ppb)
5Almena Waterworks
Almena, WI
7651 of 50.25 ppb
(0 to 1.25 ppb)
6WI Dot Wayside 4 Preston
Friendship, WI
5001 of 10.2 ppb
(0.2 ppb)
7Meadowview School
Oconomowoc, WI
6511 of 40.13 ppb
(0 to 0.52 ppb)
8Country Acres Mobile Hms 2
Horicon, WI
512 of 60.13 ppb
(0 to 0.54 ppb)
9Oakwood Terrace
Portage, WI
1001 of 10.11 ppb
(0.11 ppb)
10Jack Walters & Sons Corp
Allenton, WI
602 of 70.11 ppb
(0 to 0.49 ppb)

Health Based Limits for Benzene

StandardDescriptionLevel
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.0.15 ppb
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.1 ppb
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.2.2 ppb
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 ppb
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.100 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.100 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.200 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.200 ppb

Violation Summary for Benzene in Wisconsin

There are no violations reported for this contaminant in Wisconsin