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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Travis County Water Control and Improvement District 19

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
20151.63 ppb41ND - 6.50 ppb
2016ND40ND
2017ND40ND
2018ND40ND
20192.20 ppb41ND - 8.80 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
2014-03-17AC47123ND
2014-06-19AC57535ND
2014-09-10AC66534ND
2014-11-18AC72369ND
2015-03-11AC83732ND
2015-06-24AC972216.50 ppb
2015-09-22AD08014ND
2015-11-16AD13578ND
2016-02-11AD23353ND
2016-05-27AD38631ND
2016-08-05AD47098ND
2016-11-03AD56455ND
2017-02-01AD68090ND
2017-05-15AD84221ND
2017-07-17AD89490ND
2017-11-30AE06310ND
2018-02-20AE14405ND
2018-05-16AE26545ND
2018-07-24AE34314ND
2018-11-15AE46208ND
2019-02-12AE54024ND
2019-06-07AE694738.80 ppb
2019-08-16AE79086ND
2019-12-05AE91398ND