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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

North Texas Municipal Water District - Bonham Water Treatment Plant

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.675 ppb41ND - 2.70 ppb
20130.733 ppb31ND - 2.20 ppb
2014ND10ND
20154.30 ppb114.30 ppb
20162.70 ppb112.70 ppb
2017ND10ND

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
2012-03-051203120005ND
2012-06-041206070004ND
2012-08-211208A510062.70 ppb
2012-12-061212342002ND
2013-03-071303267009ND
2013-06-11Q13021430012.20 ppb
2013-09-09Q1306727001ND
2014-07-09Q1427045003ND
2015-05-19Q15184400064.30 ppb
2016-07-27Q16306620112.70 ppb
2017-06-14Q1725114001ND