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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Springs Hill WSC

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)

55

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20144.51 ppb1614ND - 21.5 ppb
20152.94 ppb169ND - 11.2 ppb
20160.669 ppb164ND - 3.90 ppb
20170.400 ppb165ND - 1.50 ppb
20183.58 ppb1612ND - 15.2 ppb
20191.55 ppb1611ND - 5.40 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
2014-02-10AC418892.20 ppb
2014-02-10AC418832.40 ppb
2014-02-10AC418822.50 ppb
2014-02-10AC41888ND
2014-05-09AC538888.40 ppb
2014-05-09AC539031.60 ppb
2014-05-09AC538722.40 ppb
2014-05-09AC538897.60 ppb
2014-07-29AC614382.10 ppb
2014-07-29AC6142912.4 ppb
2014-07-29AC614281.90 ppb
2014-07-29AC6143021.5 ppb
2014-10-03AC688943.40 ppb
2014-10-03AC688811.80 ppb
2014-10-03AC688952.00 ppb
2014-10-03AC68893ND
2015-02-16AC805979.70 ppb
2015-02-16AC806001.50 ppb
2015-02-16AC806021.20 ppb
2015-02-16AC806018.80 ppb
2015-04-17AC88766ND
2015-04-17AC88769ND
2015-04-17AC88784ND
2015-04-17AC88782ND
2015-07-21AD003521.80 ppb
2015-07-21AD003731.70 ppb
2015-07-21AD003511.70 ppb
2015-07-21AD00350ND
2015-11-06AD12935ND
2015-11-06AD129519.50 ppb
2015-11-06AD1293811.2 ppb
2015-11-06AD12939ND
2016-01-13AD17847ND
2016-01-13AD17850ND
2016-01-13AD17849ND
2016-01-13AD17848ND
2016-04-05AD31807ND
2016-04-05AD31808ND
2016-04-05AD31803ND
2016-04-05AD31804ND
2016-07-07AD43292ND
2016-07-07AD432763.90 ppb
2016-07-07AD432803.90 ppb
2016-07-07AD43288ND
2016-10-06AD52651ND
2016-10-06AD52640ND
2016-10-06AD526491.50 ppb
2016-10-06AD526501.40 ppb
2017-01-26AD67115ND
2017-01-26AD67080ND
2017-01-26AD67083ND
2017-01-26AD67079ND
2017-04-21AD806661.000 ppb
2017-04-21AD80669ND
2017-04-21AD80658ND
2017-04-21AD80662ND
2017-07-24AD90334ND
2017-07-24AD903201.10 ppb
2017-07-24AD90324ND
2017-07-24AD90319ND
2017-11-17AE053491.40 ppb
2017-11-17AE053521.40 ppb
2017-11-17AE053481.50 ppb
2017-11-17AE05353ND
2018-01-19AE094821.30 ppb
2018-01-19AE094831.30 ppb
2018-01-19AE094771.000 ppb
2018-01-19AE09486ND
2018-04-04AE21181ND
2018-04-04AE211756.80 ppb
2018-04-04AE2117115.2 ppb
2018-04-04AE211736.80 ppb
2018-07-09AE325511.70 ppb
2018-07-09AE325552.00 ppb
2018-07-09AE325572.50 ppb
2018-07-09AE32556ND
2018-11-13AE459215.90 ppb
2018-11-13AE459207.10 ppb
2018-11-13AE459225.70 ppb
2018-11-13AE45917ND
2019-03-13AE584032.50 ppb
2019-03-13AE58416ND
2019-03-13AE583972.80 ppb
2019-03-13AE583992.50 ppb
2019-04-29AE639215.40 ppb
2019-04-29AE639321.70 ppb
2019-04-29AE639041.40 ppb
2019-04-29AE639273.60 ppb
2019-08-01AE76759ND
2019-08-01AE767601.30 ppb
2019-08-01AE76764ND
2019-08-01AE76766ND
2019-10-07AE85784ND
2019-10-07AE858051.10 ppb
2019-10-07AE858001.30 ppb
2019-10-07AE858021.20 ppb