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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Perry

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

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND60ND
2019ND20ND

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
2014-03-18AI36159ND
2014-03-18AI36158ND
2014-03-18AI36157ND
2014-03-18AI36156ND
2014-06-17AI43446ND
2014-06-17AI43445ND
2014-06-17AI43444ND
2014-06-17AI43443ND
2014-09-17AI54375ND
2014-09-17AI54372ND
2014-09-17AI54373ND
2014-09-17AI54374ND
2015-03-17AI69157ND
2015-03-17AI69156ND
2015-03-17AI69155ND
2015-03-17AI69154ND
2015-06-16AI79895ND
2015-06-16AI79892ND
2015-06-16AI79893ND
2015-06-16AI79894ND
2015-09-15AI89768ND
2015-09-15AI89767ND
2015-09-15AI89766ND
2015-09-15AI89765ND
2015-12-15AJ02907ND
2015-12-15AJ02906ND
2015-12-15AJ02905ND
2015-12-15AJ02904ND
2016-03-15AJ08242ND
2016-03-15AJ08241ND
2016-03-15AJ08240ND
2016-03-15AJ08239ND
2016-06-13AJ13976ND
2016-06-13AJ13977ND
2016-06-13AJ13975ND
2016-06-13AJ13974ND
2016-09-19AJ28035ND
2016-09-19AJ28034ND
2016-09-19AJ28033ND
2016-09-19AJ28032ND
2016-12-19AJ37088ND
2016-12-19AJ37087ND
2016-12-19AJ37086ND
2016-12-19AJ37085ND
2017-03-20AJ48302ND
2017-03-20AJ48301ND
2017-03-20AJ48300ND
2017-03-20AJ48299ND
2017-06-19AJ57898ND
2017-06-19AJ57897ND
2017-06-19AJ57899ND
2017-06-19AJ57900ND
2017-09-18AJ68483ND
2017-09-18AJ68482ND
2017-09-18AJ68481ND
2017-09-18AJ68480ND
2017-12-18AJ75629ND
2017-12-18AJ75627ND
2017-12-18AJ75628ND
2017-12-18AJ75630ND
2018-03-19AJ86150ND
2018-03-19AJ86149ND
2018-03-19AJ86148ND
2018-03-19AJ86147ND
2018-06-11AJ91528ND
2018-06-11AJ91527ND
2019-06-04191301-02ND
2019-06-04191301-01ND