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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

Nueces County WCID 3

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.

 

75

Samples

0

Samples exceeding legal limit (MCL)

52

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20131.04 ppb74ND - 2.20 ppb
20141.67 ppb16161.000 ppb - 3.90 ppb
20151.33 ppb1611ND - 3.00 ppb
20160.969 ppb1611ND - 1.80 ppb
20171.09 ppb1610ND - 2.30 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
2012-01-261201643005ND
2012-05-161205536002ND
2012-07-111207412004ND
2012-10-101210388002ND
2013-02-12AC10417ND
2013-04-24AC17672ND
2013-08-06AC26945ND
2013-12-16AC376502.20 ppb
2013-12-16AC376461.70 ppb
2013-12-16AC376451.90 ppb
2013-12-16AC376271.50 ppb
2014-03-12AC467181.70 ppb
2014-03-12AC467191.50 ppb
2014-03-12AC467301.60 ppb
2014-03-12AC467201.90 ppb
2014-05-22AC550941.60 ppb
2014-05-22AC550971.30 ppb
2014-05-22AC550961.60 ppb
2014-05-22AC550921.40 ppb
2014-08-06AC624061.90 ppb
2014-08-06AC624121.90 ppb
2014-08-06AC623981.60 ppb
2014-08-06AC623881.50 ppb
2014-11-10AC717211.000 ppb
2014-11-10AC716831.10 ppb
2014-11-10AC717173.90 ppb
2014-11-10AC717181.20 ppb
2015-02-19AC81158ND
2015-02-19AC81157ND
2015-02-19AC81162ND
2015-02-19AC81163ND
2015-04-23AC893921.50 ppb
2015-04-23AC893941.20 ppb
2015-04-23AC893931.40 ppb
2015-04-23AC893911.10 ppb
2015-09-17AD07547ND
2015-09-17AD075283.00 ppb
2015-09-17AD075262.50 ppb
2015-09-17AD075272.60 ppb
2015-12-02AD151561.90 ppb
2015-12-02AD151532.10 ppb
2015-12-02AD151521.90 ppb
2015-12-02AD151512.00 ppb
2016-02-11AD233421.40 ppb
2016-02-11AD233431.50 ppb
2016-02-11AD233381.60 ppb
2016-02-11AD233451.80 ppb
2016-04-12AD327631.20 ppb
2016-04-12AD327691.30 ppb
2016-04-12AD32783ND
2016-04-12AD327601.20 ppb
2016-09-12AD487701.30 ppb
2016-09-12AD487801.20 ppb
2016-09-12AD487811.30 ppb
2016-09-12AD487821.70 ppb
2016-12-05AD60280ND
2016-12-05AD60282ND
2016-12-05AD60284ND
2016-12-05AD60281ND
2017-03-21AD76013ND
2017-03-21AD76012ND
2017-03-21AD76011ND
2017-03-21AD76010ND
2017-05-11AD839091.50 ppb
2017-05-11AD839261.60 ppb
2017-05-11AD839111.50 ppb
2017-05-11AD839101.50 ppb
2017-09-14AD962292.30 ppb
2017-09-14AD962251.10 ppb
2017-09-14AD962282.00 ppb
2017-09-14AD962261.80 ppb
2017-11-17AE05344ND
2017-11-17AE053462.10 ppb
2017-11-17AE053452.10 ppb
2017-11-17AE05343ND