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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Anna

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

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
20154.50 ppb114.50 ppb
2016ND10ND
2017ND10ND
20181.46 ppb54ND - 2.70 ppb
20191.44 ppb1610ND - 4.30 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
2014-05-22Q1417366022ND
2015-06-29Q15244550214.50 ppb
2016-05-25Q1620634004ND
2017-06-05Q1724295001ND
2018-09-27Q18387500011.70 ppb
2018-11-26Q18476460041.80 ppb
2018-11-26Q1847646003ND
2018-11-26Q18476460022.70 ppb
2018-11-26Q18476460011.10 ppb
2019-02-14Q1907030011ND
2019-02-14Q19070300053.00 ppb
2019-02-14Q19070300122.30 ppb
2019-02-14Q19070300044.30 ppb
2019-06-21Q19390930042.20 ppb
2019-06-21Q19390930031.50 ppb
2019-06-21Q19390930023.10 ppb
2019-06-21Q1939093001ND
2019-08-15Q19559530052.00 ppb
2019-08-15Q1955953004ND
2019-08-15Q19559530031.60 ppb
2019-08-15Q1955953002ND
2019-11-07Q1976117001ND
2019-11-07Q19761170041.50 ppb
2019-11-07Q1976117003ND
2019-11-07Q19761170021.60 ppb