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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Golden State Water Company (GSWC) - Bell, Bell Gardens

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

 

128

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
20143.06 ppb1610ND - 7.50 ppb
20150.188 ppb161ND - 3.00 ppb
20160.250 ppb162ND - 2.00 ppb
2017ND160ND
2018ND320ND
2019ND320ND

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
2014-02-042706-800-11053.70 ppb
2014-02-042706-801-1045ND
2014-02-042706-802-1055ND
2014-02-042706-803-0950ND
2014-05-062706-800-1038ND
2014-05-062706-801-10186.00 ppb
2014-05-062706-802-10296.20 ppb
2014-05-062706-803-09225.00 ppb
2014-08-052706-800-1057ND
2014-08-052706-801-10357.40 ppb
2014-08-052706-802-10457.50 ppb
2014-08-052706-803-09373.60 ppb
2014-11-042706-800-11122.60 ppb
2014-11-042706-801-10503.40 ppb
2014-11-042706-802-1100ND
2014-11-042706-803-09373.60 ppb
2015-02-032706-800-1022ND
2015-02-032706-801-1001ND
2015-02-032706-802-1014ND
2015-02-032706-803-09053.00 ppb
2015-05-052706-800-1045ND
2015-05-052706-801-1015ND
2015-05-052706-802-1035ND
2015-05-052706-803-0917ND
2015-08-040007-800-1048ND
2015-08-040007-801-1018ND
2015-08-040007-802-1036ND
2015-08-040007-803-0920ND
2015-11-032706-800-1056ND
2015-11-032706-801-1030ND
2015-11-032706-802-1045ND
2015-11-032706-803-0935ND
2016-02-022706-800-1042ND
2016-02-022706-801-1104ND
2016-02-022706-802-1053ND
2016-02-022706-803-1015ND
2016-05-032706-800-1107ND
2016-05-032706-801-1003ND
2016-05-032706-802-10222.00 ppb
2016-05-032706-803-0906ND
2016-08-022706-800-1106ND
2016-08-022706-801-0956ND
2016-08-022706-802-1010ND
2016-08-022706-803-0900ND
2016-11-082706-800-0916ND
2016-11-082706-801-09002.00 ppb
2016-11-082706-802-0909ND
2016-11-082706-803-0758ND
2017-02-079590-800-1109ND
2017-02-079590-801-1011ND
2017-02-079590-802-1026ND
2017-02-079590-803-0915ND
2017-05-029590-800-1029ND
2017-05-029590-801-1008ND
2017-05-029590-802-1021ND
2017-05-029590-803-0911ND
2017-08-019590-800-1036ND
2017-08-019590-801-1025ND
2017-08-019590-802-1009ND
2017-08-019590-803-0917ND
2017-11-079590-800-1043ND
2017-11-079590-801-1025ND
2017-11-079590-802-1035ND
2017-11-079590-803-0932ND
2018-02-069590-800-1103ND
2018-02-069590-801-1052ND
2018-02-069590-802-1032ND
2018-02-069590-803-0904ND
2018-02-069590-804-0926ND
2018-02-069590-805-1155ND
2018-02-069590-806-0821ND
2018-02-069590-807-0810ND
2018-05-019590-800-1034ND
2018-05-019590-801-1009ND
2018-05-019590-802-1025ND
2018-05-019590-803-0848ND
2018-05-019590-804-0913ND
2018-05-019590-805-1132ND
2018-05-019590-806-0803ND
2018-05-019590-807-0750ND
2018-08-089590-800-1021ND
2018-08-089590-801-0958ND
2018-08-089590-802-1009ND
2018-08-089590-803-0923ND
2018-08-089590-804-0938ND
2018-08-089590-805-1108ND
2018-08-089590-806-0854ND
2018-08-089590-807-0911ND
2018-11-079590-800-0953ND
2018-11-079590-801-0926ND
2018-11-079590-802-0940ND
2018-11-079590-803-0916ND
2018-11-079590-804-0907ND
2018-11-079590-805-1006ND
2018-11-079590-806-0853ND
2018-11-079590-807-0843ND
2019-02-069590-800-0926ND
2019-02-069590-801-0854ND
2019-02-069590-802-0915ND
2019-02-069590-803-0731ND
2019-02-069590-804-0758ND
2019-02-069590-805-1038ND
2019-02-069590-806-0642ND
2019-02-069590-807-0630ND
2019-05-079590-800-1033ND
2019-05-079590-801-1003ND
2019-05-079590-802-1021ND
2019-05-079590-803-0830ND
2019-05-079590-804-0856ND
2019-05-079590-805-1137ND
2019-05-079590-806-0741ND
2019-05-079590-807-0725ND
2019-08-069590-800-1113ND
2019-08-069590-801-1051ND
2019-08-069590-802-1102ND
2019-08-069590-803-0933ND
2019-08-069590-804-0957ND
2019-08-069590-805-1240ND
2019-08-069590-806-0851ND
2019-08-069590-807-0837ND
2019-11-059590-800-1137ND
2019-11-059590-801-1110ND
2019-11-059590-802-1126ND
2019-11-059590-803-0937ND
2019-11-059590-804-1005ND
2019-11-059590-805-1237ND
2019-11-059590-806-0850ND
2019-11-059590-807-0835ND