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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Lutcher Waterworks

Monochloroacetic 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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.23 ppb1612ND - 7.10 ppb
20151.51 ppb1610ND - 6.10 ppb
2016ND160ND
20170.450 ppb164ND - 1.80 ppb
20180.813 ppb166ND - 3.00 ppb
20191.74 ppb1612ND - 3.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic 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.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-122011640131.90 ppb
2014-02-122011640121.90 ppb
2014-02-122011640131.90 ppb
2014-02-122011640121.90 ppb
2014-05-142039250012.50 ppb
2014-05-142039250027.10 ppb
2014-05-142039250027.10 ppb
2014-05-142039250012.50 ppb
2014-08-132080210016.10 ppb
2014-08-13208021002ND
2014-08-13208021002ND
2014-08-132080210016.10 ppb
2014-11-122012242001ND
2014-11-1220122420026.30 ppb
2014-11-1220122420026.30 ppb
2014-11-122012242001ND
2015-02-1120159650016.10 ppb
2015-02-1120159650021.70 ppb
2015-02-1120159650021.70 ppb
2015-02-1120159650016.10 ppb
2015-05-1320198950011.40 ppb
2015-05-1320198950021.60 ppb
2015-05-1320198950021.60 ppb
2015-05-1320198950011.40 ppb
2015-08-122024032002ND
2015-08-1220240320011.30 ppb
2015-08-122024032002ND
2015-08-1220240320011.30 ppb
2015-11-112028618001ND
2015-11-112028618002ND
2015-11-112028618002ND
2015-11-112028618001ND
2016-02-102032448001ND
2016-02-102032448002ND
2016-02-102032448002ND
2016-02-102032448001ND
2016-05-112036564002ND
2016-05-112036564001ND
2016-05-112036564002ND
2016-05-112036564001ND
2016-08-102041063001ND
2016-08-102041070001ND
2016-08-102041070001ND
2016-08-102041063001ND
2016-11-092045626001ND
2016-11-092045627001ND
2016-11-092045627001ND
2016-11-092045626001ND
2017-02-1535295932007ND
2017-02-1535295932006ND
2017-02-1535295932006ND
2017-02-1535295932007ND
2017-05-1635312602009ND
2017-05-1635312602009ND
2017-05-1635312602010ND
2017-05-1635312602010ND
2017-08-1035329798003ND
2017-08-1035329798004ND
2017-08-1035329798003ND
2017-08-1035329798004ND
2017-11-07353468850021.80 ppb
2017-11-07353468850011.80 ppb
2017-11-07353468850011.80 ppb
2017-11-07353468850021.80 ppb
2018-02-0835373297002ND
2018-02-0835373297001ND
2018-02-0835373297002ND
2018-02-0835373297001ND
2018-05-0435390330002ND
2018-05-0435390330002ND
2018-05-0435390330001ND
2018-05-0435390330001ND
2018-08-0235408577002ND
2018-08-02354085770011.90 ppb
2018-08-02354085770011.90 ppb
2018-08-0235408577002ND
2018-11-01354287930013.00 ppb
2018-11-01354287930021.60 ppb
2018-11-01354287930013.00 ppb
2018-11-01354287930021.60 ppb
2019-02-12354479000021.40 ppb
2019-02-12354479000011.50 ppb
2019-02-12354479000011.50 ppb
2019-02-12354479000021.40 ppb
2019-05-1435468880002ND
2019-05-1435468880002ND
2019-05-1435468880001ND
2019-05-1435468880001ND
2019-08-13354899960022.80 ppb
2019-08-13354899960012.70 ppb
2019-08-13354899960012.70 ppb
2019-08-13354899960022.80 ppb
2019-11-04355095800011.90 ppb
2019-11-04355095800023.60 ppb
2019-11-04355095800011.90 ppb
2019-11-04355095800023.60 ppb