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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Manchester Twp Water Utility - Western

Dichloroacetic 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

 

97

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
20160.205 ppb161ND - 3.28 ppb
2017ND160ND
20180.529 ppb162ND - 6.01 ppb
20190.154 ppb172ND - 1.53 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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
2014-03-12340313136ND
2014-03-12340313132ND
2014-03-12340313134ND
2014-03-12340313130ND
2014-06-11340611130ND
2014-06-11340611132ND
2014-06-11340611134ND
2014-06-11340611136ND
2014-09-10340911077ND
2014-09-10340911079ND
2014-09-10340911081ND
2014-09-10340911083ND
2014-12-10341211017ND
2014-12-10341211015ND
2014-12-10341211019ND
2014-12-10341211021ND
2015-03-11350312066ND
2015-03-11350312070ND
2015-03-11350312072ND
2015-03-11350312068ND
2015-06-10350610115ND
2015-06-10350610111ND
2015-06-10350610113ND
2015-06-10350610109ND
2015-09-09350909059ND
2015-09-09350909055ND
2015-09-09350909065ND
2015-09-09350909057ND
2015-12-09351209027ND
2015-12-09351209031ND
2015-12-09351209033ND
2015-12-09351209029ND
2016-03-09360309035ND
2016-03-09360309039ND
2016-03-09360309037ND
2016-03-09360309041ND
2016-06-08360608073ND
2016-06-08360608077ND
2016-06-08360608079ND
2016-06-08360608075ND
2016-09-07360907029ND
2016-09-07360907031ND
2016-09-07360907027ND
2016-09-07360907033ND
2016-12-07361207037ND
2016-12-073612070393.28 ppb
2016-12-07361207035ND
2016-12-07361207033ND
2017-03-08370308059ND
2017-03-08370308063ND
2017-03-08370308071ND
2017-03-08370308061ND
2017-06-08370609074ND
2017-06-08370609081ND
2017-06-08370609078ND
2017-06-08370609076ND
2017-09-06370906053ND
2017-09-06370906051ND
2017-09-06370906049ND
2017-09-06370906055ND
2017-12-06371206058ND
2017-12-06371206060ND
2017-12-06371206064ND
2017-12-06371206062ND
2018-03-06380306053ND
2018-03-063803060576.01 ppb
2018-03-06380306059ND
2018-03-06380306055ND
2018-06-05380605102ND
2018-06-05380605100ND
2018-06-05380605106ND
2018-06-053806051042.45 ppb
2018-09-06380906750ND
2018-09-06380906744ND
2018-09-06380906746ND
2018-09-06380906748ND
2018-12-05381205704.2ND
2018-12-05381205706.2ND
2018-12-05381205708.2ND
2018-12-05381205710.2ND
2019-03-11390311717.2ND
2019-03-11390311716.2ND
2019-03-11390311718.2ND
2019-03-11390311715.2ND
2019-06-07390607707ND
2019-06-07390607703ND
2019-06-07390607709ND
2019-06-07390607705ND
2019-09-05390905772.2AND
2019-09-05390905772.2ND
2019-09-05390905775.2ND
2019-09-05390905773.2ND
2019-09-05390905774.21.53 ppb
2019-12-04391204713.2ND
2019-12-04391204711.2ND
2019-12-04391204712.21.08 ppb
2019-12-04391204714.2ND