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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Donna

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)

73

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.44 ppb1613ND - 4.10 ppb
20151.64 ppb1615ND - 2.40 ppb
20162.13 ppb1614ND - 4.50 ppb
20170.975 ppb167ND - 7.40 ppb
20181.17 ppb1611ND - 3.40 ppb
20191.07 ppb1613ND - 1.70 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
2014-02-28AC452921.40 ppb
2014-02-28AC453231.40 ppb
2014-02-28AC452631.60 ppb
2014-02-28AC452624.10 ppb
2014-04-22AC513531.50 ppb
2014-04-22AC513541.10 ppb
2014-04-22AC513571.30 ppb
2014-04-22AC513551.40 ppb
2014-07-23AC60760ND
2014-07-23AC60762ND
2014-07-23AC607611.20 ppb
2014-07-23AC60759ND
2014-10-21AC701542.20 ppb
2014-10-21AC701661.90 ppb
2014-10-21AC701722.30 ppb
2014-10-21AC701481.60 ppb
2015-01-21AC771951.70 ppb
2015-01-21AC77201ND
2015-01-21AC771941.70 ppb
2015-01-21AC771931.50 ppb
2015-04-07AC874762.00 ppb
2015-04-07AC874401.60 ppb
2015-04-07AC874561.70 ppb
2015-04-07AC874792.10 ppb
2015-07-14AC993262.40 ppb
2015-07-14AC993321.70 ppb
2015-07-14AC993351.70 ppb
2015-07-14AC993311.50 ppb
2015-10-20AD111711.30 ppb
2015-10-20AD111782.00 ppb
2015-10-20AD111571.70 ppb
2015-10-20AD111591.70 ppb
2016-03-02AD266241.10 ppb
2016-03-02AD26616ND
2016-03-02AD26620ND
2016-03-02AD266221.10 ppb
2016-06-08AD397543.60 ppb
2016-06-08AD397512.70 ppb
2016-06-08AD397182.60 ppb
2016-06-08AD397172.10 ppb
2016-07-14AD442343.00 ppb
2016-07-14AD442233.30 ppb
2016-07-14AD442254.50 ppb
2016-07-14AD442302.80 ppb
2016-11-15AD580021.80 ppb
2016-11-15AD579861.80 ppb
2016-11-15AD579841.60 ppb
2016-11-15AD580052.10 ppb
2017-01-10AD639231.20 ppb
2017-01-10AD639271.40 ppb
2017-01-10AD639291.70 ppb
2017-01-10AD639371.80 ppb
2017-05-01AD81751ND
2017-05-01AD817501.000 ppb
2017-05-01AD81749ND
2017-05-01AD81777ND
2017-07-12AD89054ND
2017-07-12AD89051ND
2017-07-12AD89055ND
2017-07-12AD890441.10 ppb
2017-10-31AE029047.40 ppb
2017-10-31AE02914ND
2017-10-31AE02921ND
2017-10-31AE02907ND
2018-01-24AE10152ND
2018-01-24AE101451.000 ppb
2018-01-24AE10144ND
2018-01-24AE10142ND
2018-04-11AE22041ND
2018-04-11AE220381.40 ppb
2018-04-11AE220421.20 ppb
2018-04-11AE220401.000 ppb
2018-08-16AE373271.000 ppb
2018-08-16AE373321.10 ppb
2018-08-16AE373311.10 ppb
2018-08-16AE37324ND
2018-10-10AE430572.40 ppb
2018-10-10AE430562.70 ppb
2018-10-10AE430753.40 ppb
2018-10-10AE430762.40 ppb
2019-02-26AE559241.60 ppb
2019-02-26AE559161.30 ppb
2019-02-26AE559151.60 ppb
2019-02-26AE559461.30 ppb
2019-05-21AE673371.20 ppb
2019-05-21AE673441.40 ppb
2019-05-21AE67333ND
2019-05-21AE67341ND
2019-09-05AE822511.000 ppb
2019-09-05AE822471.000 ppb
2019-09-05AE822481.10 ppb
2019-09-05AE82253ND
2019-12-03AE909911.50 ppb
2019-12-03AE909981.20 ppb
2019-12-03AE909921.20 ppb
2019-12-03AE909871.70 ppb