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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Arcadia

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
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND200ND
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
2014-01-319588-802-1100ND
2014-01-319588-800-1115ND
2014-01-319588-801-1125ND
2014-01-319588-803-1140ND
2014-04-249588-803-1315ND
2014-04-249588-802-1355ND
2014-04-249588-801-1330ND
2014-04-249588-800-1340ND
2014-07-289588-803-1320ND
2014-07-289588-802-1410ND
2014-07-289588-801-1345ND
2014-07-289588-800-1335ND
2014-10-289588-802-1215ND
2014-10-289588-801-1230ND
2014-10-289588-803-1240ND
2014-10-289588-800-1225ND
2015-01-309588-803-1105ND
2015-01-309588-802-1030ND
2015-01-309588-801-1050ND
2015-01-309588-800-1040ND
2015-04-309588-803-0910ND
2015-04-309588-802-0945ND
2015-04-309588-800-0920ND
2015-04-309588-801-0935ND
2015-07-319588-801-0940ND
2015-07-319588-800-0950ND
2015-07-319588-803-1005ND
2015-07-319588-802-0925ND
2015-10-309588-801-1110ND
2015-10-309588-800-1100ND
2015-10-309588-803-1125ND
2015-10-309588-802-1045ND
2016-01-299588-801-1115ND
2016-01-299588-800-1105ND
2016-01-299588-803-1130ND
2016-01-299588-802-1050ND
2016-04-289588-801-1010ND
2016-04-289588-800-0955ND
2016-04-289588-803-1025ND
2016-04-289588-802-0945ND
2016-07-299588-801-1125ND
2016-07-299588-800-1115ND
2016-07-299588-803-1140ND
2016-07-299588-802-1100ND
2016-10-289588-800-0945ND
2016-10-289588-802-0930ND
2016-10-289588-803-1010ND
2016-10-289588-801-0955ND
2017-01-309588-801-0950ND
2017-01-309588-800-0940ND
2017-01-309588-802-0925ND
2017-01-309588-803-1000ND
2017-04-289588-803-0955ND
2017-04-289588-800-0930ND
2017-04-289588-801-0940ND
2017-04-289588-802-0920ND
2017-07-319588-803-1355ND
2017-07-319588-801-1425ND
2017-07-319588-800-1415ND
2017-07-319588-802-1445ND
2017-10-319588-803-1015ND
2017-10-319588-800-0955ND
2017-10-319588-802-0945ND
2017-10-319588-801-1005ND
2018-01-319588-802-0940ND
2018-01-319588-803-1025ND
2018-01-319588-800-0955ND
2018-01-319588-801-1005ND
2018-02-209588-802-0855ND
2018-02-209588-803-0925ND
2018-02-209588-800-0910ND
2018-02-209588-801-0920ND
2018-04-279588-803-0945ND
2018-04-279588-800-1000ND
2018-04-279588-801-1010ND
2018-04-279588-802-1020ND
2018-07-309588-802-0930ND
2018-07-309588-803-1020ND
2018-07-309588-801-1000ND
2018-07-309588-800-0945ND
2018-10-309588-803-1020ND
2018-10-309588-802-0940ND
2018-10-309588-801-1005ND
2018-10-309588-800-0955ND
2019-01-299588-803-1030ND
2019-01-299588-800-0955ND
2019-01-299588-801-1005ND
2019-01-299588-802-0945ND
2019-04-299588-800-0955ND
2019-04-299588-802-0940ND
2019-04-299588-803-1025ND
2019-04-299588-801-1010ND
2019-07-299588-802-0845ND
2019-07-299588-800-0900ND
2019-07-299588-803-0935ND
2019-07-299588-801-0920ND
2019-10-299588-802-0920ND
2019-10-299588-801-0945ND
2019-10-299588-800-0935ND
2019-10-299588-803-0955ND