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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Golden State Water Company (GSWC) - Culver City

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.05 ppb1612ND - 3.60 ppb
20150.413 ppb163ND - 2.30 ppb
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
2014-02-032706-802-10232.30 ppb
2014-02-032706-800-0930ND
2014-02-032706-801-11162.30 ppb
2014-02-032706-803-10032.20 ppb
2014-05-052706-803-09332.90 ppb
2014-05-052706-802-09563.10 ppb
2014-05-052706-801-10542.80 ppb
2014-05-052706-800-08442.20 ppb
2014-08-042706-803-09153.00 ppb
2014-08-042706-802-09473.60 ppb
2014-08-042706-801-1059ND
2014-08-042706-800-08353.40 ppb
2014-11-032706-802-1053ND
2014-11-032706-801-10582.20 ppb
2014-11-032706-803-1021ND
2014-11-032706-800-09212.80 ppb
2015-02-032706-803-0901ND
2015-02-032706-802-0928ND
2015-02-032706-801-0958ND
2015-02-032706-800-08292.20 ppb
2015-05-052706-803-0753ND
2015-05-052706-802-08172.10 ppb
2015-05-052706-800-07232.30 ppb
2015-05-052706-801-0921ND
2015-08-040007-800-0855ND
2015-08-040007-803-0845ND
2015-08-040007-802-0915ND
2015-08-040007-801-1140ND
2015-11-092706-801-1332ND
2015-11-092706-800-0823ND
2015-11-092706-803-0955ND
2015-11-092706-802-1128ND
2016-02-012706-801-1141ND
2016-02-012706-800-1105ND
2016-02-012706-803-1257ND
2016-02-012706-802-1241ND
2016-05-022706-801-1029ND
2016-05-022706-800-1245ND
2016-05-022706-803-1204ND
2016-05-022706-802-1138ND
2016-08-012706-803-1251ND
2016-08-012706-801-1040ND
2016-08-012706-800-1155ND
2016-08-012706-802-1141ND
2016-11-082706-803-1127ND
2016-11-082706-801-1210ND
2016-11-082706-802-1144ND
2016-11-082706-800-1101ND
2017-02-089590-802-1211ND
2017-02-089590-803-1229ND
2017-02-089590-801-1114ND
2017-02-089590-800-0930ND
2017-05-019590-802-1030ND
2017-05-019590-800-0920ND
2017-05-019590-801-1132ND
2017-05-019590-803-0955ND
2017-08-079590-800-0835ND
2017-08-079590-801-0940ND
2017-08-079590-803-1130ND
2017-08-079590-802-1105ND
2017-11-069590-803-1148ND
2017-11-069590-800-0923ND
2017-11-069590-802-1218ND
2017-11-069590-801-1302ND
2018-02-059590-803-1105ND
2018-02-059590-800-0900ND
2018-02-059590-801-1210ND
2018-02-059590-802-1125ND
2018-04-309590-801-1205ND
2018-04-309590-802-1115ND
2018-04-309590-803-1055ND
2018-04-309590-800-0840ND
2018-08-069590-801-1210ND
2018-08-069590-803-1105ND
2018-08-069590-802-1130ND
2018-08-069590-800-0850ND
2018-11-059590-801-1135ND
2018-11-059590-803-1035ND
2018-11-059590-802-1055ND
2018-11-059590-800-0825ND
2019-02-049590-800-0755ND
2019-02-049590-802-1020ND
2019-02-049590-801-1120ND
2019-02-049590-803-0955ND
2019-05-079590-800-0750ND
2019-05-079590-802-1035ND
2019-05-079590-803-1005ND
2019-05-079590-801-1115ND
2019-08-059590-803-0951ND
2019-08-059590-802-1024ND
2019-08-059590-800-0917ND
2019-08-059590-801-1130ND
2019-11-049590-803-1010ND
2019-11-049590-802-1105ND
2019-11-049590-800-0840ND
2019-11-049590-801-1150ND