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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Moberly

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.19 ppb202ND - 12.1 ppb
20150.339 ppb161ND - 5.43 ppb
2016ND160ND
2017ND160ND
2018ND160ND
20190.336 ppb161ND - 5.38 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
2014-03-05AC19900ND
2014-03-05AC19899ND
2014-03-05AC19901ND
2014-03-05AC19902ND
2014-06-16AC28655ND
2014-06-16AC2866212.1 ppb
2014-06-16AC2866111.7 ppb
2014-06-16AC28659ND
2014-06-16AC28658ND
2014-06-16AC28657ND
2014-06-16AC28656ND
2014-06-16AC28660ND
2014-09-18AC35640ND
2014-09-18AC35641ND
2014-09-18AC35642ND
2014-09-18AC35643ND
2014-12-09AC39512ND
2014-12-09AC39511ND
2014-12-09AC39510ND
2014-12-09AC39509ND
2015-03-09AC43590ND
2015-03-09AC43589ND
2015-03-09AC435915.43 ppb
2015-03-09AC43588ND
2015-06-09AC51257ND
2015-06-09AC51259ND
2015-06-09AC51258ND
2015-06-09AC51256ND
2015-09-08AC59532ND
2015-09-08AC59530ND
2015-09-08AC59529ND
2015-09-08AC59531ND
2015-12-07AC63959ND
2015-12-07AC63961ND
2015-12-07AC63962ND
2015-12-08AC63960ND
2016-03-09AC67661ND
2016-03-09AC67660ND
2016-03-09AC67663ND
2016-03-09AC67662ND
2016-06-07AC74901ND
2016-06-07AC74902ND
2016-06-07AC74903ND
2016-06-07AC74904ND
2016-09-07AC83881ND
2016-09-07AC83884ND
2016-09-07AC83883ND
2016-09-07AC83882ND
2016-12-15AC88474ND
2016-12-15AC88475ND
2016-12-15AC88473ND
2016-12-15AC88472ND
2017-03-13AC92158ND
2017-03-13AC92159ND
2017-03-13AC92161ND
2017-03-13AC92160ND
2017-06-06AC98501ND
2017-06-06AC98498ND
2017-06-06AC98499ND
2017-06-06AC98500ND
2017-09-08AD06477ND
2017-09-08AD06475ND
2017-09-08AD06476ND
2017-09-08AD06478ND
2017-12-06AD10628ND
2017-12-06AD10629ND
2017-12-06AD10627ND
2017-12-06AD10630ND
2018-03-07AD16508ND
2018-03-07AD16507ND
2018-03-07AD16506ND
2018-03-07AD16505ND
2018-06-19AD27318ND
2018-06-19AD27317ND
2018-06-19AD27316ND
2018-06-19AD27319ND
2018-09-20AD32942ND
2018-09-20AD32943ND
2018-09-20AD32944ND
2018-09-20AD32941ND
2018-12-11AD36784ND
2018-12-11AD36785ND
2018-12-11AD36786ND
2018-12-11AD36787ND
2019-03-08AD40533ND
2019-03-08AD40536ND
2019-03-08AD40534ND
2019-03-08AD40535ND
2019-06-06AD49128ND
2019-06-06AD49129ND
2019-06-06AD49130ND
2019-06-06AD49131ND
2019-09-12AD55213ND
2019-09-12AD552145.38 ppb
2019-09-12AD55215ND
2019-09-12AD55216ND
2019-12-09AD59122ND
2019-12-09AD59123ND
2019-12-09AD59120ND
2019-12-09AD59121ND