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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of El Centro

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
20150.425 ppb163ND - 2.30 ppb
20160.950 ppb167ND - 2.40 ppb
20170.688 ppb165ND - 2.40 ppb
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
2014-04-093761-903-0828ND
2014-04-093761-902-0918ND
2014-04-093761-901-0900ND
2014-04-093761-900-0740ND
2014-07-093761-903-0639ND
2014-07-093761-902-0752ND
2014-07-093761-900-0838ND
2014-07-153761-901-0750ND
2014-10-153761-903-0756ND
2014-10-153761-902-0940ND
2014-10-153761-901-0835ND
2014-10-153761-900-1016ND
2015-01-223761-901-1045ND
2015-01-223761-902-0900ND
2015-01-223761-903-1015ND
2015-01-223761-900-0830ND
2015-04-083761-903-0911ND
2015-04-083761-902-08212.20 ppb
2015-04-083761-901-0842ND
2015-04-083761-900-07462.30 ppb
2015-07-163761-900-06552.30 ppb
2015-07-163761-901-0840ND
2015-07-163761-902-0925ND
2015-07-163761-903-0754ND
2015-10-213761-903-0930ND
2015-10-213761-902-0830ND
2015-10-213761-900-0750ND
2015-10-213761-901-0900ND
2016-01-203761-902-0850ND
2016-01-203761-901-0920ND
2016-01-203761-903-1020ND
2016-01-203761-900-0810ND
2016-04-203761-901-09102.00 ppb
2016-04-203761-902-09502.40 ppb
2016-04-203761-900-0735ND
2016-04-203761-903-0830ND
2016-07-133761-901-1000ND
2016-07-133761-900-06452.40 ppb
2016-07-133761-902-09152.30 ppb
2016-07-133761-903-0800ND
2016-10-133761-902-10142.00 ppb
2016-10-133761-901-10502.10 ppb
2016-10-133761-900-07502.00 ppb
2016-10-133761-903-0929ND
2017-01-193761-902-1120ND
2017-01-193761-903-09592.10 ppb
2017-01-193761-901-1039ND
2017-01-193761-900-0917ND
2017-04-133761-903-0825ND
2017-04-133761-902-0925ND
2017-04-133761-901-1040ND
2017-04-133761-900-0720ND
2017-07-263761-902-09252.10 ppb
2017-07-263761-901-10402.20 ppb
2017-07-263761-903-08152.40 ppb
2017-07-263761-900-07102.20 ppb
2017-10-183761-900-0730ND
2017-10-183761-901-1315ND
2017-10-183761-903-0845ND
2017-10-183761-902-0955ND
2018-01-243761-900-0815ND
2018-01-243761-903-0920ND
2018-01-243761-901-1150ND
2018-01-243761-902-1035ND
2018-04-183761-903-0830ND
2018-04-183761-901-1105ND
2018-04-183761-902-0950ND
2018-04-183761-900-0725ND
2018-07-183761-900-0605ND
2018-07-183761-903-0720ND
2018-07-183761-901-0935ND
2018-07-183761-902-0825ND
2018-10-183761-900-0625ND
2018-10-183761-902-1010ND
2018-10-183761-903-0740ND
2018-10-183761-901-0900ND
2019-01-233761-902-0955ND
2019-01-233761-903-0820ND
2019-01-233761-900-0705ND
2019-01-233761-901-1110ND
2019-04-103761-903-0725ND
2019-04-103761-902-0840ND
2019-04-103761-900-0604ND
2019-04-103761-901-0955ND
2019-07-103761-903-0737ND
2019-07-103761-902-0855ND
2019-07-103761-901-1000ND
2019-07-103761-900-0632ND
2019-10-163761-903-0620ND
2019-10-163761-902-0715ND
2019-10-163761-900-0530ND
2019-10-163761-901-0815ND