Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dichloroacetic acid

NJ American Water - Mount Holly

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

80

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.27 ppb1615ND - 5.20 ppb
20151.84 ppb1612ND - 9.60 ppb
20161.69 ppb1614ND - 3.30 ppb
20172.24 ppb1613ND - 7.00 ppb
20183.04 ppb1614ND - 7.60 ppb
20191.68 ppb1612ND - 5.90 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
2014-02-12245743012.60 ppb
2014-02-12245746011.60 ppb
2014-02-12245747014.60 ppb
2014-02-12245749011.70 ppb
2014-05-09255237011.50 ppb
2014-05-09255238015.20 ppb
2014-05-09255236011.70 ppb
2014-05-09255239013.40 ppb
2014-08-0726608001ND
2014-08-07266081012.30 ppb
2014-08-07266079011.40 ppb
2014-08-07266082011.60 ppb
2014-11-07274159012.90 ppb
2014-11-07274158011.60 ppb
2014-11-07274157012.40 ppb
2014-11-07274160011.80 ppb
2015-02-09281088012.40 ppb
2015-02-09281086011.10 ppb
2015-02-09281083011.70 ppb
2015-02-09281087012.00 ppb
2015-05-08290595011.30 ppb
2015-05-08290592011.40 ppb
2015-05-0829059301ND
2015-05-08290594012.20 ppb
2015-08-07300488011.10 ppb
2015-08-0730048501ND
2015-08-0730048601ND
2015-08-07300487012.00 ppb
2015-11-0930680401ND
2015-11-09306809013.40 ppb
2015-11-09306805011.20 ppb
2015-11-09306807019.60 ppb
2016-02-09313764011.80 ppb
2016-02-09313759011.70 ppb
2016-02-09313763013.30 ppb
2016-02-09313762011.30 ppb
2016-05-09321020011.50 ppb
2016-05-09321022013.20 ppb
2016-05-09321023011.80 ppb
2016-05-09321021011.40 ppb
2016-08-08331042011.60 ppb
2016-08-08331044012.60 ppb
2016-08-08331045011.60 ppb
2016-08-0833104301ND
2016-11-0733895201ND
2016-11-07338950011.70 ppb
2016-11-07338954011.90 ppb
2016-11-07338953011.70 ppb
2017-02-08348059012.60 ppb
2017-02-08348054011.80 ppb
2017-02-08348060012.50 ppb
2017-02-08348058011.20 ppb
2017-05-08356027012.90 ppb
2017-05-08356026014.20 ppb
2017-05-08356023012.00 ppb
2017-05-0835602501ND
2017-08-17370988012.00 ppb
2017-08-1737098601ND
2017-08-1737098701ND
2017-08-17370989011.10 ppb
2017-11-07378139013.50 ppb
2017-11-07378141012.60 ppb
2017-11-07378140017.00 ppb
2017-11-07378137012.50 ppb
2018-02-07387546013.20 ppb
2018-02-07387542012.80 ppb
2018-02-07387544012.00 ppb
2018-02-07387545014.20 ppb
2018-05-07395858014.20 ppb
2018-05-07395854014.00 ppb
2018-05-07395857016.40 ppb
2018-05-07395856011.90 ppb
2018-08-08407657017.60 ppb
2018-08-0840765601ND
2018-08-08407658011.40 ppb
2018-08-08407643011.40 ppb
2018-11-06420879013.80 ppb
2018-11-0642087801ND
2018-11-06420880012.90 ppb
2018-11-06420865012.80 ppb
2019-02-07430751011.40 ppb
2019-02-07430753011.60 ppb
2019-02-0743075201ND
2019-02-07430754011.40 ppb
2019-05-06442685011.40 ppb
2019-05-06442686012.30 ppb
2019-05-06442683011.30 ppb
2019-05-0644268401ND
2019-08-0745932001ND
2019-08-07459318012.40 ppb
2019-08-07459319011.60 ppb
2019-08-07459317014.70 ppb
2019-11-07472712011.30 ppb
2019-11-0747270901ND
2019-11-07472710015.90 ppb
2019-11-07472711011.50 ppb