Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dichloroacetic acid

Pecan Grove MUD

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)

47

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.53 ppb169ND - 4.60 ppb
20153.80 ppb169ND - 12.6 ppb
20161.64 ppb1610ND - 4.10 ppb
20172.66 ppb1612ND - 6.60 ppb
20180.263 ppb162ND - 2.10 ppb
20191.01 ppb165ND - 6.30 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
2014-02-17AC43094ND
2014-02-17AC43069ND
2014-02-17AC43095ND
2014-02-17AC43016ND
2014-04-01AC489031.000 ppb
2014-04-01AC48902ND
2014-04-01AC489061.60 ppb
2014-04-01AC48907ND
2014-08-15AC640931.90 ppb
2014-08-15AC640951.80 ppb
2014-08-15AC64106ND
2014-08-15AC641521.30 ppb
2014-10-02AC687754.50 ppb
2014-10-02AC687764.60 ppb
2014-10-02AC687793.50 ppb
2014-10-02AC687914.20 ppb
2015-01-14AC761916.60 ppb
2015-01-14AC761897.70 ppb
2015-01-14AC761868.20 ppb
2015-01-14AC761905.80 ppb
2015-04-07AC874485.90 ppb
2015-04-07AC8746412.6 ppb
2015-04-07AC874497.10 ppb
2015-04-07AC874585.90 ppb
2015-07-09AC98967ND
2015-07-09AC98962ND
2015-07-09AC989631.000 ppb
2015-07-09AC98964ND
2015-10-26AD11684ND
2015-10-26AD11681ND
2015-10-26AD11675ND
2015-10-26AD11690ND
2016-01-21AD192373.80 ppb
2016-01-21AD192402.00 ppb
2016-01-21AD192361.70 ppb
2016-01-21AD192321.90 ppb
2016-05-06AD357993.40 ppb
2016-05-06AD357983.80 ppb
2016-05-06AD357964.10 ppb
2016-05-06AD357952.80 ppb
2016-07-15AD44497ND
2016-07-15AD44492ND
2016-07-15AD445101.70 ppb
2016-07-15AD44509ND
2016-12-07AD60875ND
2016-12-07AD608781.000 ppb
2016-12-07AD60877ND
2016-12-07AD60876ND
2017-02-01AD680785.00 ppb
2017-02-01AD680475.70 ppb
2017-02-01AD680776.60 ppb
2017-02-01AD680764.70 ppb
2017-05-02AD821212.20 ppb
2017-05-02AD821131.80 ppb
2017-05-02AD821112.20 ppb
2017-05-02AD821233.10 ppb
2017-07-05AD88308ND
2017-07-05AD88313ND
2017-07-05AD88309ND
2017-07-05AD88310ND
2017-10-17AE010391.10 ppb
2017-10-17AE010693.90 ppb
2017-10-17AE010683.80 ppb
2017-10-17AE010702.50 ppb
2018-02-02AE12182ND
2018-02-02AE12177ND
2018-02-02AE12181ND
2018-02-02AE12184ND
2018-04-09AE21638ND
2018-04-09AE21645ND
2018-04-09AE21666ND
2018-04-09AE21670ND
2018-07-05AE32390ND
2018-07-05AE32412ND
2018-07-05AE32400ND
2018-07-05AE32402ND
2018-10-15AE43391ND
2018-10-15AE433882.10 ppb
2018-10-15AE433872.10 ppb
2018-10-15AE43393ND
2019-01-14AE495132.50 ppb
2019-01-14AE495203.30 ppb
2019-01-14AE495192.30 ppb
2019-01-14AE495211.80 ppb
2019-04-11AE62016ND
2019-04-11AE62009ND
2019-04-11AE62010ND
2019-04-11AE62011ND
2019-07-15AE74365ND
2019-07-15AE74366ND
2019-07-15AE74377ND
2019-07-15AE743756.30 ppb
2019-10-08AE85968ND
2019-10-08AE85965ND
2019-10-08AE85966ND
2019-11-22AE90356ND