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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

Lake Cities Municipal Utility Authority

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.

 

95

Samples

0

Samples exceeding legal limit (MCL)

54

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.05 ppb1511ND - 3.10 ppb
20130.844 ppb165ND - 3.50 ppb
20142.11 ppb1612ND - 12.0 ppb
20151.43 ppb1614ND - 2.20 ppb
20160.644 ppb168ND - 1.40 ppb
20170.306 ppb164ND - 1.30 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
2012-02-151202501009ND
2012-02-1512025010083.10 ppb
2012-02-1512025010102.80 ppb
2012-05-2412057910061.000 ppb
2012-05-2412057910051.000 ppb
2012-05-2412057910071.000 ppb
2012-05-2412057910081.000 ppb
2012-07-171207639005ND
2012-07-1712076390081.10 ppb
2012-07-171207639007ND
2012-07-171207639006ND
2012-10-1712106790051.20 ppb
2012-10-1712106790061.60 ppb
2012-10-1712106790071.000 ppb
2012-10-1712106790081.000 ppb
2013-02-0513021270113.30 ppb
2013-02-0513021270102.50 ppb
2013-02-0513021270093.00 ppb
2013-02-0513021270083.50 ppb
2013-04-091304446005ND
2013-04-0913044460061.20 ppb
2013-04-091304446007ND
2013-04-091304446008ND
2013-08-02Q1305210001ND
2013-08-02Q1305210002ND
2013-08-02Q1305210003ND
2013-08-02Q1305210004ND
2013-10-24Q1309785004ND
2013-10-24Q1309785003ND
2013-10-24Q1309785002ND
2013-10-24Q1309785001ND
2014-03-07Q14074530013.50 ppb
2014-03-07Q14074530023.50 ppb
2014-03-07Q14074530033.20 ppb
2014-03-07Q14074530043.10 ppb
2014-06-19Q1422461001ND
2014-06-19Q1422461002ND
2014-06-19Q1422461003ND
2014-06-19Q1422461004ND
2014-09-18Q144597400212.0 ppb
2014-09-18Q14459740031.10 ppb
2014-09-18Q14459740041.000 ppb
2014-09-18Q14459740051.10 ppb
2014-12-17Q14603150011.30 ppb
2014-12-17Q14603150041.20 ppb
2014-12-17Q14603150031.50 ppb
2014-12-17Q14603150021.30 ppb
2015-03-17Q15099130052.10 ppb
2015-03-17Q15099130042.00 ppb
2015-03-17Q15099130032.10 ppb
2015-03-17Q15099130022.00 ppb
2015-06-09Q15213550022.10 ppb
2015-06-09Q15213550032.20 ppb
2015-06-09Q15213550042.00 ppb
2015-06-09Q15213550052.00 ppb
2015-09-01Q1533843004ND
2015-09-01Q15338430031.000 ppb
2015-09-01Q15338430021.000 ppb
2015-09-01Q1533843001ND
2015-11-04Q15437980021.10 ppb
2015-11-04Q15437980011.10 ppb
2015-11-04Q15437980031.10 ppb
2015-11-04Q15437980041.10 ppb
2016-02-23Q16078600041.20 ppb
2016-02-23Q16078600021.20 ppb
2016-02-23Q16078600011.20 ppb
2016-02-23Q16078600031.20 ppb
2016-05-18Q16199110011.30 ppb
2016-05-18Q16199110021.40 ppb
2016-05-18Q16199110031.40 ppb
2016-05-18Q16199110041.40 ppb
2016-08-04Q1632453003ND
2016-08-04Q1632453001ND
2016-08-04Q1632453002ND
2016-08-04Q1632453004ND
2016-10-19Q1644915010ND
2016-10-19Q1644915009ND
2016-10-19Q1644915008ND
2016-10-19Q1644915007ND
2017-01-23Q17029000011.20 ppb
2017-01-23Q17029000041.20 ppb
2017-01-23Q17029000021.30 ppb
2017-01-23Q17029000031.20 ppb
2017-04-18Q1715878005ND
2017-04-18Q1715878003ND
2017-04-18Q1715878002ND
2017-04-18Q1715878004ND
2017-07-11Q1728204001ND
2017-07-11Q1728204002ND
2017-07-11Q1728204004ND
2017-07-11Q1728204003ND
2017-10-12Q1752250003ND
2017-10-12Q1752250011ND
2017-10-12Q1752250002ND
2017-10-12Q1752250010ND