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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

Montebello Land & Water Company

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.

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND10ND
2014ND190ND
2015ND160ND
2016ND160ND
2017ND160ND

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
2013-10-229588-803-1015ND
2014-01-149588-801-0955ND
2014-01-149588-800-0935ND
2014-01-149588-802-1025ND
2014-01-219588-800-0900ND
2014-01-219588-801-0920ND
2014-01-219588-802-0945ND
2014-01-219588-803-0845ND
2014-04-229588-802-0930ND
2014-04-229588-803-0955ND
2014-04-229588-801-1025ND
2014-04-229588-800-1045ND
2014-07-159588-802-1030ND
2014-07-159588-803-0920ND
2014-07-159588-801-1000ND
2014-07-159588-800-0945ND
2014-10-219588-802-1010ND
2014-10-219588-801-1045ND
2014-10-219588-803-1030ND
2014-10-219588-800-1105ND
2015-01-209588-802-0820ND
2015-01-209588-803-0840ND
2015-01-209588-801-0900ND
2015-01-209588-800-0915ND
2015-04-219588-803-0830ND
2015-04-219588-800-0910ND
2015-04-219588-801-0855ND
2015-04-219588-802-0815ND
2015-07-219588-802-0845ND
2015-07-219588-800-1005ND
2015-07-219588-801-0945ND
2015-07-219588-803-0905ND
2015-10-209588-802-1005ND
2015-10-209588-800-1110ND
2015-10-209588-801-1055ND
2015-10-209588-803-1025ND
2016-01-199588-802-0830ND
2016-01-199588-800-0915ND
2016-01-199588-803-0845ND
2016-01-199588-801-0900ND
2016-04-199588-802-1005ND
2016-04-199588-803-1025ND
2016-04-199588-800-1105ND
2016-04-199588-801-1045ND
2016-07-199588-801-1010ND
2016-07-199588-800-1030ND
2016-07-199588-802-0925ND
2016-07-199588-803-0950ND
2016-10-189588-801-1025ND
2016-10-189588-802-0935ND
2016-10-189588-803-0955ND
2016-10-189588-800-1045ND
2017-01-319588-801-1300ND
2017-01-319588-802-1225ND
2017-01-319588-803-1240ND
2017-01-319588-800-1315ND
2017-04-189588-801-1000ND
2017-04-189588-802-0910ND
2017-04-189588-803-0930ND
2017-04-189588-800-1020ND
2017-07-189588-801-0915ND
2017-07-189588-802-0840ND
2017-07-189588-800-0935ND
2017-07-189588-803-0855ND
2017-10-179588-800-0930ND
2017-10-179588-802-0830ND
2017-10-179588-803-0845ND
2017-10-179588-801-0910ND