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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Davidson Water Inc.

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.109 ppb321ND - 3.50 ppb
20151.40 ppb3211ND - 5.50 ppb
20161.03 ppb328ND - 6.00 ppb
20170.531 ppb326ND - 4.00 ppb
20180.125 ppb321ND - 4.00 ppb
20190.875 ppb3211ND - 4.00 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
2014-02-03777937TND
2014-02-03777938TND
2014-02-03777939TND
2014-02-03777940TND
2014-02-03777941TND
2014-02-03777942TND
2014-02-03777943TND
2014-02-03777944TND
2014-05-06784626TND
2014-05-06784627TND
2014-05-06784628TND
2014-05-06784629T3.50 ppb
2014-05-06784630TND
2014-05-06784631TND
2014-05-06784632TND
2014-05-06784633TND
2014-08-05791674TND
2014-08-05791675TND
2014-08-05791676TND
2014-08-05791677TND
2014-08-05791678TND
2014-08-05791679TND
2014-08-05791680TND
2014-08-05791681TND
2014-11-03798791TND
2014-11-03798792TND
2014-11-03798793TND
2014-11-03798796TND
2014-11-03798795TND
2014-11-04798794TND
2014-11-04798797TND
2014-11-04798798TND
2015-02-02ND
2015-02-02ND
2015-02-02ND
2015-02-03ND
2015-02-03ND
2015-02-03ND
2015-02-03ND
2015-02-03ND
2015-05-04ND
2015-05-04ND
2015-05-042.20 ppb
2015-05-04ND
2015-05-04ND
2015-05-04ND
2015-05-04ND
2015-05-04ND
2015-08-043.80 ppb
2015-08-044.90 ppb
2015-08-045.10 ppb
2015-08-044.90 ppb
2015-08-043.70 ppb
2015-08-044.80 ppb
2015-08-045.10 ppb
2015-08-045.50 ppb
2015-11-03ND
2015-11-03ND
2015-11-032.60 ppb
2015-11-032.20 ppb
2015-11-03ND
2015-11-03ND
2015-11-03ND
2015-11-03ND
2016-02-033395349ND
2016-02-033395350ND
2016-02-033395351ND
2016-02-033395352ND
2016-02-033395353ND
2016-02-033395354ND
2016-02-033395355ND
2016-02-033395356ND
2016-05-023440242ND
2016-05-023440243ND
2016-05-023440244ND
2016-05-023440245ND
2016-05-023440246ND
2016-05-023440247ND
2016-05-023440248ND
2016-05-023440249ND
2016-08-0137729_16-260764.00 ppb
2016-08-0237729_16-26069ND
2016-08-0237729_16-260705.00 ppb
2016-08-0237729_16-260715.00 ppb
2016-08-0237729_16-260724.00 ppb
2016-08-0237729_16-260734.00 ppb
2016-08-0237729_16-260746.00 ppb
2016-08-0237729_16-26075ND
2016-11-0837729_16-390983.00 ppb
2016-11-0837729_16-390992.00 ppb
2016-11-0837729_16-39100ND
2016-11-0837729_16-39101ND
2016-11-0837729_16-39102ND
2016-11-0837729_16-39103ND
2016-11-0837729_16-39104ND
2016-11-0837729_16-39105ND
2017-02-0637729_17-04502ND
2017-02-0637729_17-04503ND
2017-02-0637729_17-04504ND
2017-02-0637729_17-04505ND
2017-02-0637729_17-04506ND
2017-02-0637729_17-04507ND
2017-02-0637729_17-04508ND
2017-02-0637729_17-04509ND
2017-05-0237729_17-14909ND
2017-05-0237729_17-14910ND
2017-05-0237729_17-14911ND
2017-05-0237729_17-14912ND
2017-05-0237729_17-14913ND
2017-05-0237729_17-14914ND
2017-05-0237729_17-14915ND
2017-05-0237729_17-14916ND
2017-08-0737729_17-28140ND
2017-08-0737729_17-28141ND
2017-08-0737729_17-28142ND
2017-08-0737729_17-28143ND
2017-08-0737729_17-28144ND
2017-08-0737729_17-281454.00 ppb
2017-08-0737729_17-28146ND
2017-08-0737729_17-28147ND
2017-11-0637729_17-422013.00 ppb
2017-11-0637729_17-422022.00 ppb
2017-11-0637729_17-422033.00 ppb
2017-11-0637729_17-42204ND
2017-11-0637729_17-42205ND
2017-11-0637729_17-422063.00 ppb
2017-11-0637729_17-42207ND
2017-11-0637729_17-422082.00 ppb
2018-02-0637729_18-05464 ND
2018-02-0637729_18-05465 ND
2018-02-0637729_18-05466 ND
2018-02-0637729_18-05467 ND
2018-02-0637729_18-05468 ND
2018-02-0637729_18-05469 4.00 ppb
2018-02-0637729_18-05470 ND
2018-02-0637729_18-05471 ND
2018-05-0837729_18-18189 ND
2018-05-0837729_18-18190 ND
2018-05-0837729_18-18191 ND
2018-05-0837729_18-18192 ND
2018-05-0837729_18-18193 ND
2018-05-0837729_18-18194 ND
2018-05-0837729_18-18195 ND
2018-05-0837729_18-18196 ND
2018-08-0837729_18-32777 ND
2018-08-0837729_18-32778 ND
2018-08-0837729_18-32779 ND
2018-08-0837729_18-32780 ND
2018-08-0837729_18-32781 ND
2018-08-0837729_18-32782 ND
2018-08-0837729_18-32783 ND
2018-08-0837729_18-32784 ND
2018-11-0637729_18-46674 ND
2018-11-0637729_18-46675 ND
2018-11-0637729_18-46676 ND
2018-11-0637729_18-46677 ND
2018-11-0637729_18-46678 ND
2018-11-0637729_18-46679 ND
2018-11-0637729_18-46680 ND
2018-11-0637729_18-46681 ND
2019-02-0637729_19-05682 ND
2019-02-0637729_19-05693 ND
2019-02-0637729_19-05694 ND
2019-02-0637729_19-05695 ND
2019-02-0637729_19-05696 ND
2019-02-0637729_19-05697 ND
2019-02-0637729_19-05698 ND
2019-02-0637729_19-05699 ND
2019-05-0737729_19-18790 ND
2019-05-0737729_19-18791 3.00 ppb
2019-05-0737729_19-18792 ND
2019-05-0737729_19-18793 3.00 ppb
2019-05-0737729_19-18794 ND
2019-05-0737729_19-18795 4.00 ppb
2019-05-0737729_19-18796 2.00 ppb
2019-05-0737729_19-18797 2.00 ppb
2019-08-0637729_19-33836 ND
2019-08-0637729_19-33837 ND
2019-08-0637729_19-33838 3.00 ppb
2019-08-0637729_19-33839 3.00 ppb
2019-08-0637729_19-33840 2.00 ppb
2019-08-0637729_19-33841 2.00 ppb
2019-08-0637729_19-33842 2.00 ppb
2019-08-0637729_19-33843 2.00 ppb
2019-11-0537729_19-47816 ND
2019-11-0537729_19-47817 ND
2019-11-0537729_19-47818 ND
2019-11-0537729_19-47819 ND
2019-11-0537729_19-47820 ND
2019-11-0537729_19-47821 ND
2019-11-0537729_19-47822 ND
2019-11-0537729_19-47823 ND