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National Drinking Water Database


Trichloroacetic acid in Minnesota


Trichloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.

The Most Polluted Communities in Minnesota

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

Ranked by highest average Trichloroacetic acid level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Mora
Mora, MN
3,44414 of 1434.73 ppb
(2.7 to 61 ppb)
2Kennedy
Kennedy, MN
2324 of 424.25 ppb
(21 to 28 ppb)
3Cromwell
Cromwell, MN
2295 of 524.12 ppb
(0.6 to 44 ppb)
4Hallock
Hallock, MN
1,1514 of 420.75 ppb
(18 to 23 ppb)
5Lancaster
Lancaster, MN
3514 of 420.5 ppb
(18 to 22 ppb)
6Stephen
Stephen, MN
6828 of 820.27 ppb
(1.3 to 29.5 ppb)
7Eveleth
Eveleth, MN
3,86516 of 1620.2 ppb
(6.4 to 41 ppb)
8Ranier
Ranier, MN
40016 of 1619.25 ppb
(14 to 28 ppb)
9Lake Bronson
Lake Bronson, MN
2354 of 419 ppb
(17 to 20 ppb)
10New London
New London, MN
1,0665 of 518.94 ppb
(0.7 to 28 ppb)

Health Based Limits for Trichloroacetic acid

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.20 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.20 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.60 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.1000 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.3000 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.3000 ppb

Violation Summary for Trichloroacetic acid in Minnesota

There are no violations reported for this contaminant in Minnesota