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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Leander

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
2014ND160ND
20150.650 ppb164ND - 3.00 ppb
20160.706 ppb163ND - 4.70 ppb
20170.169 ppb161ND - 2.70 ppb
2018ND160ND
20190.769 ppb164ND - 4.00 ppb

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
2014-02-18AC43436ND
2014-02-18AC43430ND
2014-02-18AC43425ND
2014-02-18AC43427ND
2014-04-29AC52161ND
2014-04-29AC52163ND
2014-04-29AC52170ND
2014-04-29AC52165ND
2014-08-12AC63227ND
2014-08-12AC63250ND
2014-08-12AC63252ND
2014-08-12AC63249ND
2014-10-27AC70596ND
2014-10-27AC70575ND
2014-10-27AC70576ND
2014-10-27AC70595ND
2015-03-12AC84044ND
2015-03-12AC84041ND
2015-03-12AC84042ND
2015-03-12AC84043ND
2015-06-02AC94256ND
2015-06-02AC94263ND
2015-06-02AC94259ND
2015-06-02AC94258ND
2015-08-31AD050272.50 ppb
2015-08-31AD050262.60 ppb
2015-08-31AD050282.30 ppb
2015-09-02AD053073.00 ppb
2015-11-03AD12375ND
2015-11-03AD12363ND
2015-11-03AD12361ND
2015-11-03AD12376ND
2016-02-29AD26014ND
2016-02-29AD26016ND
2016-02-29AD26013ND
2016-02-29AD26015ND
2016-06-03AD39268ND
2016-06-03AD39269ND
2016-06-03AD39271ND
2016-06-03AD39270ND
2016-09-14AD494183.30 ppb
2016-09-14AD494144.70 ppb
2016-09-14AD494223.30 ppb
2016-09-14AD49425ND
2016-11-01AD55812ND
2016-11-01AD55811ND
2016-11-01AD55810ND
2016-11-01AD55809ND
2017-03-01AD72750ND
2017-03-01AD72751ND
2017-03-01AD72747ND
2017-03-01AD72746ND
2017-06-06AD86649ND
2017-06-06AD86650ND
2017-06-06AD86646ND
2017-06-06AD86651ND
2017-07-27AD91075ND
2017-07-27AD91078ND
2017-07-27AD91080ND
2017-07-27AD910832.70 ppb
2017-10-12AE00547ND
2017-10-12AE00550ND
2017-10-12AE00549ND
2017-10-12AE00548ND
2018-02-22AE15009ND
2018-02-22AE15008ND
2018-02-22AE14998ND
2018-02-22AE15033ND
2018-04-26AE24131ND
2018-04-26AE24132ND
2018-04-26AE24128ND
2018-04-26AE24130ND
2018-08-09AE36325ND
2018-08-09AE36328ND
2018-08-09AE36332ND
2018-08-09AE36330ND
2018-10-30AE44864ND
2018-10-30AE44866ND
2018-10-30AE44861ND
2018-10-30AE44865ND
2019-01-24AE51181ND
2019-01-24AE511752.40 ppb
2019-01-24AE51182ND
2019-01-31AE52405ND
2019-04-02AE60832ND
2019-04-02AE60863ND
2019-04-02AE60829ND
2019-04-02AE60833ND
2019-07-25AE759294.00 ppb
2019-07-25AE75920ND
2019-07-25AE759223.50 ppb
2019-07-25AE759252.40 ppb
2019-11-26AE90553ND
2019-11-26AE90555ND
2019-11-26AE90554ND
2019-11-26AE90557ND