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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Berlin Water Department

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

96

Samples

0

Samples exceeding legal limit (MCL)

65

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.74 ppb1610ND - 6.21 ppb
20151.39 ppb1613ND - 6.02 ppb
20161.74 ppb1610ND - 5.50 ppb
20172.78 ppb1611ND - 6.60 ppb
20182.12 ppb169ND - 7.20 ppb
20192.60 ppb1612ND - 7.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-11L4976583-12.75 ppb
2014-03-11L4976583-25.90 ppb
2014-03-11L4976583-32.68 ppb
2014-03-11L4976583-4ND
2014-06-09L5106402-33.60 ppb
2014-06-09L5106402-22.33 ppb
2014-06-09L5106402-4ND
2014-06-09L5106402-11.62 ppb
2014-09-08L5239835-41.57 ppb
2014-09-08L5239835-3ND
2014-09-08L5239835-1ND
2014-09-08L5239835-2ND
2014-12-09L5358773-30.550 ppb
2014-12-09L5358773-20.690 ppb
2014-12-09L5358773-1ND
2014-12-09L5358773-46.21 ppb
2015-03-10L5492784-40.440 ppb
2015-03-10L5492784-26.02 ppb
2015-03-10L5492784-12.00 ppb
2015-03-10L5492784-33.51 ppb
2015-06-10L5644202-30.620 ppb
2015-06-10L5644202-1ND
2015-06-10L5644202-41.78 ppb
2015-06-10L5644202-20.510 ppb
2015-09-09L5815489-30.360 ppb
2015-09-09L5815489-1ND
2015-09-09L5815489-40.950 ppb
2015-09-09L5815489-20.350 ppb
2015-12-10L5956662-1ND
2015-12-10L5956662-21.49 ppb
2015-12-10L5956662-42.55 ppb
2015-12-10L5956662-31.59 ppb
2016-03-0934139681.50 ppb
2016-03-0934139715.50 ppb
2016-03-0934139694.30 ppb
2016-03-0934139704.80 ppb
2016-06-083468633ND
2016-06-083468631ND
2016-06-0834686301.40 ppb
2016-06-0834686322.10 ppb
2016-09-063540046ND
2016-09-063540044ND
2016-09-063540043ND
2016-09-0635400452.20 ppb
2016-12-0736013462.00 ppb
2016-12-073601347ND
2016-12-0736013442.90 ppb
2016-12-0736013451.20 ppb
2017-03-0836513222.70 ppb
2017-03-083651324ND
2017-03-0836513214.70 ppb
2017-03-0836513234.40 ppb
2017-06-0837107604.80 ppb
2017-06-0837107612.40 ppb
2017-06-083710763ND
2017-06-0837107624.40 ppb
2017-09-113776255ND
2017-09-113776257ND
2017-09-1137762562.50 ppb
2017-09-1137762542.20 ppb
2017-12-0838385636.60 ppb
2017-12-0838385616.20 ppb
2017-12-0838385623.60 ppb
2017-12-083838564ND
2018-03-0938889401.70 ppb
2018-03-093888943ND
2018-03-0938889427.20 ppb
2018-03-0938889412.50 ppb
2018-06-133961656ND
2018-06-133961659ND
2018-06-133961657ND
2018-06-1339616583.30 ppb
2018-09-104051611ND
2018-09-1040516121.10 ppb
2018-09-1040516103.00 ppb
2018-09-104051613ND
2018-12-0741442745.20 ppb
2018-12-0741442755.70 ppb
2018-12-0741442734.20 ppb
2018-12-074144276ND
2019-03-0842244791.50 ppb
2019-03-0842244762.40 ppb
2019-03-0842244785.00 ppb
2019-03-0842244772.90 ppb
2019-06-0743222653.90 ppb
2019-06-0743222661.80 ppb
2019-06-074322268ND
2019-06-0743222677.60 ppb
2019-09-1944322261.20 ppb
2019-09-194432229ND
2019-09-1944322282.90 ppb
2019-09-194432227ND
2019-12-034504914ND
2019-12-0345049137.00 ppb
2019-12-0345049123.00 ppb
2019-12-0345049112.40 ppb