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National Drinking Water Database


Trichloroacetic acid in Maine


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 Maine

73 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)
1Jackman Utility District
Jackman, ME
1,06023 of 2374.07 ppb
(30.33 to 150 ppb)
2Newport Water District
Newport, ME
1,59020 of 2067.85 ppb
(33 to 130 ppb)
3Milo Water District
Milo, ME
1,68821 of 2164.71 ppb
(32.43 to 110 ppb)
4Eagle Lake Water & Sewer Dist.
Eagle Lake, ME
67815 of 2257.82 ppb
(0 to 157 ppb)
5North Haven Water Department
North Haven, ME
29313 of 2351.83 ppb
(0 to 158 ppb)
6St Francis Water District
St Francis, ME
8013 of 1551 ppb
(0 to 100 ppb)
7Madison Water District
Madison, ME
2,92323 of 2348.17 ppb
(7.5 to 96 ppb)
8Great Salt Bay Sanitary Dist
Damariscotta, ME
1,6735 of 545.9 ppb
(37 to 55 ppb)
9Canton Water District
Canton, ME
28519 of 1940.26 ppb
(15 to 98 ppb)
10Mars Hill Utility District
Saco, ME
1,80022 of 2337.13 ppb
(0 to 94 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 Maine

There are no violations reported for this contaminant in Maine