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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

Calcasieu Parish WW District 9 Carlyss

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.

 

92

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.546 ppb2410ND - 1.52 ppb
20140.200 ppb242ND - 2.40 ppb
20150.744 ppb3218ND - 1.70 ppb
20160.208 ppb82ND - 0.830 ppb
20170.835 ppb440.740 ppb - 0.930 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for trichloroacetic acid was defined by the Environmental Protection Agency as 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
2013-04-09S13040117AND
2013-04-09S13040116AND
2013-04-09S13040114A1.12 ppb
2013-04-09S13040114A1.12 ppb
2013-04-09S13040115AND
2013-04-09S13040116AND
2013-04-09S13040115AND
2013-04-09S13040117AND
2013-07-01S13070040A1.19 ppb
2013-07-01S13070039A1.43 ppb
2013-07-01S13070037A1.52 ppb
2013-07-01S13070038A1.29 ppb
2013-07-01S13070040A1.19 ppb
2013-07-01S13070037A1.52 ppb
2013-07-01S13070039A1.43 ppb
2013-07-01S13070038A1.29 ppb
2013-10-08S13100177AND
2013-10-08S13100180AND
2013-10-08S13100180AND
2013-10-08S1300178AND
2013-10-08S13100177AND
2013-10-08S13100179AND
2013-10-08S13100179AND
2013-10-08S1300178AND
2014-04-08S14040201AND
2014-04-08S14040200AND
2014-04-08S14040202AND
2014-04-08S14040201AND
2014-04-08S14040200AND
2014-04-08S14040199AND
2014-04-08S14040199AND
2014-04-08S14040202AND
2014-07-0335145595004ND
2014-07-0335145595001ND
2014-07-0335145595002ND
2014-07-0335145595003ND
2014-07-0335145595004ND
2014-07-0335145595001ND
2014-07-0335145595002ND
2014-07-0335145595003ND
2014-10-01L0048867-04ND
2014-10-01L0048867-01ND
2014-10-01L0048867-032.40 ppb
2014-10-01L0048867-032.40 ppb
2014-10-01L0048867-01ND
2014-10-01L0048867-04ND
2014-10-01L0048867-02ND
2014-10-01L0048867-02ND
2015-01-06L0052756-02ND
2015-01-06L0052756-03ND
2015-01-06L0052756-04ND
2015-01-06L0052756-011.20 ppb
2015-01-06L0052756-03ND
2015-01-06L0052756-011.20 ppb
2015-01-06L0052756-02ND
2015-01-06L0052756-04ND
2015-04-07LA5868-4ND
2015-04-07LA5868-3ND
2015-04-07LA5868-2ND
2015-04-07LA5868-1ND
2015-04-07LA5868-3ND
2015-04-07LA5868-4ND
2015-04-07LA5868-2ND
2015-04-07LA5868-1ND
2015-07-07351975490021.10 ppb
2015-07-07351975490041.10 ppb
2015-07-07351975490011.20 ppb
2015-07-07351975490031.60 ppb
2015-07-07351975490041.10 ppb
2015-07-07351975490021.10 ppb
2015-07-07351975490011.20 ppb
2015-07-07351975490031.60 ppb
2015-10-06LA12620-41.70 ppb
2015-10-06LA12620-41.70 ppb
2015-10-06LA12620-31.50 ppb
2015-10-06LA12620-21.30 ppb
2015-10-06LA12620-11.20 ppb
2015-10-06LA12620-11.20 ppb
2015-10-06LA12620-21.30 ppb
2015-10-06LA12620-31.50 ppb
2016-07-01LA22823-3ND
2016-07-01LA22823-20.830 ppb
2016-07-01LA22823-1ND
2016-07-01LA22823-1ND
2016-07-01LA22823-20.830 ppb
2016-07-01LA22823-3ND
2016-07-01LA22823-4ND
2016-07-01LA22823-4ND
2017-07-06353227130090.740 ppb
2017-07-06353227130090.740 ppb
2017-07-06353227130100.930 ppb
2017-07-06353227130100.930 ppb