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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Lincoln Hills Subdivision Ws

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

 

76

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND80ND
2016ND160ND
20171.76 ppb1610ND - 4.80 ppb
20180.245 ppb164ND - 1.000 ppb
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
2014-08-121325224ND
2014-08-121325223ND
2014-08-121325224ND
2014-08-121325223ND
2015-08-261422233ND
2015-08-261422234ND
2015-08-261422234ND
2015-08-261422233ND
2015-11-031441234ND
2015-11-031441235ND
2015-11-031441235ND
2015-11-031441234ND
2016-02-171468300ND
2016-02-171468301ND
2016-02-171468301ND
2016-02-171468300ND
2016-05-301496259ND
2016-05-301496260ND
2016-05-301496260ND
2016-05-301496259ND
2016-08-181518357ND
2016-08-181518358ND
2016-08-181518358ND
2016-08-181518357ND
2016-11-161542211ND
2016-11-161542210ND
2016-11-161542211ND
2016-11-161542210ND
2017-02-01352925820042.70 ppb
2017-02-01352925820033.90 ppb
2017-02-01352925820033.90 ppb
2017-02-01352925820042.70 ppb
2017-05-0435310618006ND
2017-05-0435310618005ND
2017-05-0435310618005ND
2017-05-0435310618006ND
2017-08-0235328002015ND
2017-08-02353280020161.30 ppb
2017-08-02353280020161.30 ppb
2017-08-0235328002015ND
2017-11-02353461600024.80 ppb
2017-11-02353461600011.40 ppb
2017-11-02353461600011.40 ppb
2017-11-02353461600024.80 ppb
2018-03-2235381948001ND
2018-03-2235381948002ND
2018-03-2235381948001ND
2018-03-2235381948002ND
2018-05-1035391935001ND
2018-05-10353919350020.960 ppb
2018-05-1035391935001ND
2018-05-10353919350020.960 ppb
2018-08-0235408589001ND
2018-08-0235408589002ND
2018-08-0235408589001ND
2018-08-0235408589002ND
2018-11-09354301930011.000 ppb
2018-11-0935430193002ND
2018-11-09354301930011.000 ppb
2018-11-0935430193002ND
2019-02-0135445748002ND
2019-02-0135445748001ND
2019-02-0135445748001ND
2019-02-0135445748002ND
2019-05-0135465860002ND
2019-05-0135465860002ND
2019-05-0135465860001ND
2019-05-0135465860001ND
2019-08-0135487254002ND
2019-08-0135487254001ND
2019-08-0135487254001ND
2019-08-0135487254002ND
2019-11-1435512559001ND
2019-11-1435512559002ND
2019-11-1435512559001ND
2019-11-1435512559002ND