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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Avon Water Company

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

 

80

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
20140.0656 ppb162ND - 0.540 ppb
2015N/A00N/A
2016ND160ND
20170.106 ppb163ND - 0.600 ppb
20180.0313 ppb161ND - 0.500 ppb
2019ND160ND

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
2014-01-16E401A25-2CH0.510 ppb
2014-01-16E401A25-3CH0.540 ppb
2014-01-16E401A25-4CHND
2014-01-16E401A25-1CHND
2014-04-15E404E43-1CHND
2014-04-15E404E43-2CHND
2014-04-15E404E43-3CHND
2014-04-15E404E43-4CHND
2014-07-14E407C09-4GEND
2014-07-14E407C09-3GEND
2014-07-14E407C09-2GEND
2014-07-14E407C09-1GEND
2014-10-16E410F41-1GEND
2014-10-16E410F41-2GEND
2014-10-16E410F41-3GEND
2014-10-16E410F41-4GEND
2016-01-15E601D17-1GEND
2016-01-15E601D17-2GEND
2016-01-15E601D17-3GEND
2016-01-15E601D17-4GEND
2016-04-19E605079-2GEND
2016-04-19E605079-4GEND
2016-04-19E605079-3GEND
2016-04-19E605079-1GEND
2016-07-13E607C00-2GEND
2016-07-13E607C00-3GEND
2016-07-13E607C00-4GEND
2016-07-13E607C00-1GEND
2016-10-14E610G73-1GEND
2016-10-14E610G73-2GEND
2016-10-14E610G73-3GEND
2016-10-14E610G73-4GEND
2017-01-13E701C67-1GEND
2017-01-13E701C67-4GEND
2017-01-13E701C67-3GEND
2017-01-13E701C67-2GEND
2017-04-13D7D1107-01HA5ND
2017-04-13D7D1107-02HA5ND
2017-04-13D7D1107-03HA5ND
2017-04-13D7D1107-04HA5ND
2017-07-14D7G1331-04HA5ND
2017-07-14D7G1331-01HA5ND
2017-07-14D7G1331-02HA50.600 ppb
2017-07-14D7G1331-03HA5ND
2017-10-13D7J1362-02HA5ND
2017-10-13D7J1362-03HA50.600 ppb
2017-10-13D7J1362-04HA5ND
2017-10-13D7J1362-01HA50.500 ppb
2018-01-24D8A1669-01HA5ND
2018-01-24D8A1669-02HA5ND
2018-01-24D8A1669-03HA5ND
2018-01-24D8A1669-04HA5ND
2018-04-25D8D2151-09HA50.500 ppb
2018-04-25D8D2151-11HA5ND
2018-04-25D8D2151-10HA5ND
2018-04-25D8D2151-08HA5ND
2018-07-26CA98743ND
2018-07-26CA98744ND
2018-07-26CA98745ND
2018-07-26CA98746ND
2018-10-09DBP 200508678ND
2018-10-09DBP 200508665ND
2018-10-09DBP 200508664ND
2018-10-09DBP 200508676ND
2019-01-08DBP 200518131ND
2019-01-08DBP 200518132ND
2019-01-08DBP 200518133ND
2019-01-08DBP 200518135ND
2019-04-11DBP 200528270ND
2019-04-11DBP 200528269ND
2019-04-11DBP 200528268ND
2019-04-11DBP 200528267ND
2019-07-02DBP 200538992ND
2019-07-02DBP 200538993ND
2019-07-02DBP 200538995ND
2019-07-02DBP 200538996ND
2019-10-03DBP 200551429ND
2019-10-03DBP 200551430ND
2019-10-03DBP 200551431ND
2019-10-03DBP 200551432ND