Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

Coalinga

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

 

84

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-12-225810-904-0952ND
2014-12-225810-903-0858ND
2014-12-225810-902-0924ND
2014-12-225810-901-0827ND
2015-03-185810-901-0905ND
2015-03-185810-904-1042ND
2015-03-185810-903-0948ND
2015-03-185810-902-1017ND
2015-05-279590-901-0855ND
2015-05-279590-904-1020ND
2015-05-279590-903-0925ND
2015-05-279590-902-0955ND
2015-07-229590-901-0840ND
2015-07-229590-903-1017ND
2015-07-229590-904-0915ND
2015-07-229590-902-0950ND
2015-10-289590-901-0930ND
2015-10-289590-903-0830ND
2015-10-289590-902-0756ND
2015-10-289590-904-0855ND
2016-01-209590-901-0855ND
2016-01-209590-903-1045ND
2016-01-209590-904-0930ND
2016-01-209590-902-1008ND
2016-04-139590-902-0745ND
2016-04-139590-903-0705ND
2016-04-139590-904-0935ND
2016-04-139590-901-0825ND
2016-07-209590-902-0745ND
2016-07-209590-901-0840ND
2016-07-209590-903-0815ND
2016-07-209590-904-0720ND
2016-10-129590-902-0735ND
2016-10-129590-901-0905ND
2016-10-129590-903-0810ND
2016-10-129590-904-0835ND
2017-01-049590-903-0840ND
2017-01-049590-904-0910ND
2017-01-049590-901-0930ND
2017-01-049590-902-0810ND
2017-04-129590-901-0835ND
2017-04-129590-904-0810ND
2017-04-129590-902-0750ND
2017-04-129590-903-0730ND
2017-07-199590-902-0840ND
2017-07-199590-904-0905ND
2017-07-199590-901-0945ND
2017-07-199590-903-0825ND
2017-10-259590-903-0850ND
2017-10-259590-904-0935ND
2017-10-259590-901-0732ND
2017-10-259590-902-0810ND
2018-01-179590-902-0740ND
2018-01-179590-901-0850ND
2018-01-179590-903-0812ND
2018-01-179590-904-0923ND
2018-04-125810-901-1100ND
2018-04-125810-904-1015ND
2018-04-125810-902-0839ND
2018-04-125810-903-0930ND
2018-07-175810-901-0830ND
2018-07-175810-902-0645ND
2018-07-175810-904-0800ND
2018-07-175810-903-0720ND
2018-10-095806-903-0725ND
2018-10-095806-901-0845ND
2018-10-095806-904-0810ND
2018-10-095806-902-0700ND
2019-01-285806-901-0905ND
2019-01-285806-904-0850ND
2019-01-285806-903-0800ND
2019-01-285806-902-0755ND
2019-04-095806-901-0910ND
2019-04-095806-903-0810ND
2019-04-095806-904-0845ND
2019-04-095806-902-0745ND
2019-07-165806-903-0830ND
2019-07-165806-902-0847ND
2019-07-165806-904-0910ND
2019-07-165806-901-0940ND
2019-10-155806-901-0910ND
2019-10-155806-904-0830ND
2019-10-155806-902-0735ND
2019-10-155806-903-0755ND