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National Drinking Water Database


Dichloromethane (methylene chloride) in Wisconsin


Dichloromethane is a widely-used paint remover, solvent and metal degreasing agent; it is discharged into the environment from the manufacture of chemicals, textiles, electronics, metals and plastics, pharmaceuticals and pesticides. [read more]

The Most Polluted Communities in Wisconsin

164 water utilities reported detecting Dichloromethane (methylene chloride) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Dichloromethane (methylene chloride) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Northernaire ON Deer Lake Condominiums
Three Lakes, WI
3001 of 22 ppb
(0 to 4 ppb)
2St Peters Parochial Sch & Chrch
Chippewa Falls, WI
801 of 21.8 ppb
(0 to 3.6 ppb)
3Somers School
Kenosha, WI
6801 of 21.75 ppb
(0 to 3.5 ppb)
4W E Energies Ergs Training Facility
Racine, WI
852 of 31.63 ppb
(0 to 4.3 ppb)
5Kettle Moraine Correctional Institution
Plymouth, WI
1,5441 of 41.03 ppb
(0 to 4.1 ppb)
6Advocap Inc/Headstart
Markesan, WI
751 of 10.79 ppb
(0.79 ppb)
7Butternut Waterworks
Butternut, WI
3971 of 50.76 ppb
(0 to 3.8 ppb)
8Greenleaf Waterworks
Greenleaf, WI
6501 of 10.72 ppb
(0.72 ppb)
9Spacious Acres Mobile HM Community
Sullivan, WI
5501 of 10.61 ppb
(0.61 ppb)
10Neenah Waterworks
Neenah, WI
24,5002 of 30.54 ppb
(0 to 1.09 ppb)

Health Based Limits for Dichloromethane (methylene chloride)

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.4 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.4.6 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 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.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.500 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.2000 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.2000 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.10000 ppb

Violation Summary for Dichloromethane (methylene chloride) in Wisconsin

There are no violations reported for this contaminant in Wisconsin