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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Imperial

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

 

84

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND80ND
2016ND210ND
2017ND160ND
2018ND120ND
2019ND110ND

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
2014-01-149469-902-0815ND
2014-01-149469-900-0830ND
2014-01-149469-901-0803ND
2014-01-149469-903-0846ND
2014-04-229469-903-0805ND
2014-04-229469-902-0900ND
2014-04-229469-901-0920ND
2014-04-229469-900-0840ND
2014-07-159469-903-0930ND
2014-07-159469-902-0750ND
2014-07-159469-901-0810ND
2014-07-159469-900-0910ND
2014-10-159469-902-0830ND
2014-10-159469-901-0815ND
2014-10-159469-903-1010ND
2014-10-159469-900-0950ND
2015-01-139588-903-0950ND
2015-01-139588-902-0925ND
2015-01-139588-901-0905ND
2015-01-139588-900-1015ND
2015-04-084792-903-0850ND
2015-04-084792-902-0830ND
2015-04-084792-900-0912ND
2015-04-084792-901-0816ND
2016-01-051677-900-0000ND
2016-01-141677-901-0000ND
2016-01-141677-900-0000ND
2016-01-141677-903-0000ND
2016-01-141677-902-0000ND
2016-04-055806-901-1115ND
2016-04-055806-900-1000ND
2016-04-055806-903-1040ND
2016-04-055806-902-1055ND
2016-05-175806-901-0846ND
2016-05-175806-900-0956ND
2016-05-175806-903-0910ND
2016-05-175806-902-1010ND
2016-08-035806-903-0950ND
2016-08-035806-901-0740ND
2016-08-035806-900-0825ND
2016-08-035806-902-0755ND
2016-11-095806-903-0915ND
2016-11-095806-902-0940ND
2016-11-095806-901-0725ND
2016-11-095806-900-0850ND
2017-02-075806-902-1051ND
2017-02-075806-903-1300ND
2017-02-075806-900-1415ND
2017-02-075806-901-1043ND
2017-05-115806-900-1135ND
2017-05-115806-903-1015ND
2017-05-115806-901-0940ND
2017-05-115806-902-0920ND
2017-08-095806-903-0910ND
2017-08-095806-900-1405ND
2017-08-095806-902-1435ND
2017-08-095806-901-0845ND
2017-11-155806-900-1125ND
2017-11-155806-903-0914ND
2017-11-155806-901-0825ND
2017-11-155806-902-0844ND
2018-02-135806-901-0744ND
2018-02-135806-903-0831ND
2018-02-135806-902-0804ND
2018-02-135806-900-0928ND
2018-05-165806-901-1308ND
2018-05-165806-903-1005ND
2018-05-165806-902-0935ND
2018-05-165806-900-1035ND
2018-08-161610-901-1000ND
2018-08-161610-902-1125ND
2018-08-161610-900-1105ND
2018-08-161610-903-1020ND
2019-02-135806-900-0925ND
2019-02-135806-902-0815ND
2019-02-135806-901-0944ND
2019-05-155806-900-1020ND
2019-05-155806-900-1045ND
2019-05-155806-900-1430ND
2019-05-155806-900-1300ND
2019-11-124790-902-1445ND
2019-11-124790-903-1325ND
2019-11-124790-901-1310ND
2019-11-124790-900-1345ND