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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

South Gate Water Department

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

 

56

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
2014N/A00N/A
2015N/A00N/A
20160.500 ppb84ND - 1.000 ppb
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
2016-07-129440-800-09311.000 ppb
2016-07-129440-803-08271.000 ppb
2016-07-129440-802-07401.000 ppb
2016-07-129440-801-12411.000 ppb
2016-10-119588-800-0838ND
2016-10-119588-803-0816ND
2016-10-119588-802-0740ND
2016-10-119588-801-0904ND
2017-01-119588-802-0744ND
2017-01-119588-801-1155ND
2017-01-119588-800-0942ND
2017-01-119588-803-0835ND
2017-04-119588-800-0752ND
2017-04-119588-802-0927ND
2017-04-119588-801-1138ND
2017-04-119588-803-0834ND
2017-07-129588-802-0723ND
2017-07-129588-800-0919ND
2017-07-129588-801-1132ND
2017-07-129588-803-0823ND
2017-10-109588-803-0822ND
2017-10-109588-802-0911ND
2017-10-109588-800-0744ND
2017-10-109588-801-1121ND
2018-01-099588-802-0731ND
2018-01-109588-801-1049ND
2018-01-109588-800-0906ND
2018-01-109588-803-0813ND
2018-04-109588-801-1224ND
2018-04-109588-800-0830ND
2018-04-109588-803-0916ND
2018-04-109588-802-1029ND
2018-07-109588-801-1254ND
2018-07-109588-803-0834ND
2018-07-109588-802-0742ND
2018-07-109588-800-1011ND
2018-10-099588-800-0746ND
2018-10-099588-803-1020ND
2018-10-099588-802-1109ND
2018-10-099588-801-1238ND
2019-01-099588-802-0732ND
2019-01-099588-803-0826ND
2019-01-099588-800-0930ND
2019-01-099588-801-1131ND
2019-04-099588-802-0918ND
2019-04-099588-803-0830ND
2019-04-099588-800-0748ND
2019-04-099588-801-1059ND
2019-07-099588-800-0752ND
2019-07-099588-801-1113ND
2019-07-099588-802-1307ND
2019-07-099588-803-0829ND
2019-10-089588-800-0746ND
2019-10-089588-801-1105ND
2019-10-089588-802-0911ND
2019-10-089588-803-0825ND