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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Lackland Air Force Base

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)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
2015ND160ND
2016ND160ND
20170.0625 ppb161ND - 1.000 ppb
20180.738 ppb165ND - 4.30 ppb
2019ND160ND

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
2014-02-14AC43077ND
2014-02-14AC43066ND
2014-02-14AC43078ND
2014-02-14AC43063ND
2014-04-09AC50025ND
2014-04-09AC50044ND
2014-04-09AC50030ND
2014-04-09AC50026ND
2014-07-21AC60387ND
2014-07-21AC60361ND
2014-07-21AC60371ND
2014-07-21AC60368ND
2014-12-19AC75643ND
2014-12-19AC75644ND
2014-12-19AC75640ND
2014-12-19AC75642ND
2015-02-27AC82302ND
2015-02-27AC82327ND
2015-02-27AC82295ND
2015-02-27AC82304ND
2015-06-24AC97206ND
2015-06-24AC97214ND
2015-06-24AC97205ND
2015-06-24AC97209ND
2015-08-20AD04780ND
2015-08-20AD04788ND
2015-08-20AD04779ND
2015-08-20AD04791ND
2015-11-18AD13986ND
2015-11-18AD13987ND
2015-11-18AD13988ND
2015-11-18AD13989ND
2016-03-08AD27526ND
2016-03-08AD27521ND
2016-03-08AD27522ND
2016-03-08AD27523ND
2016-06-22AD41495ND
2016-06-22AD41487ND
2016-06-22AD41485ND
2016-06-22AD41507ND
2016-09-21AD50494ND
2016-09-21AD50495ND
2016-09-21AD50493ND
2016-09-21AD50497ND
2016-12-12AD61649ND
2016-12-12AD61642ND
2016-12-12AD61645ND
2016-12-12AD61648ND
2017-03-02AD73081ND
2017-03-02AD73079ND
2017-03-02AD73067ND
2017-03-02AD73084ND
2017-04-11AD79174ND
2017-04-11AD79173ND
2017-04-11AD79172ND
2017-04-11AD79171ND
2017-08-10AD92713ND
2017-08-10AD92739ND
2017-08-10AD927121.000 ppb
2017-08-10AD92738ND
2017-12-08AE07408ND
2017-12-08AE07407ND
2017-12-08AE07406ND
2017-12-08AE07405ND
2018-01-19AE09495ND
2018-01-19AE09493ND
2018-01-19AE09494ND
2018-01-19AE09496ND
2018-04-11AE22002ND
2018-04-11AE22000ND
2018-04-11AE22001ND
2018-04-11AE220034.30 ppb
2018-07-30AE34851ND
2018-07-30AE348481.10 ppb
2018-07-30AE348492.60 ppb
2018-07-30AE348451.000 ppb
2018-10-17AE43912ND
2018-10-17AE43915ND
2018-10-17AE439142.80 ppb
2018-10-17AE43918ND
2019-01-25AE51575ND
2019-01-25AE51576ND
2019-01-25AE51581ND
2019-01-25AE51578ND
2019-04-11AE62026ND
2019-04-11AE62025ND
2019-04-11AE62021ND
2019-04-11AE62024ND
2019-08-06AE77206ND
2019-08-06AE77199ND
2019-08-06AE77201ND
2019-08-06AE77218ND
2019-10-23AE87375ND
2019-10-23AE87396ND
2019-10-23AE87409ND
2019-10-23AE87390ND