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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Town of Addison

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
20142.16 ppb1610ND - 4.50 ppb
20152.98 ppb1611ND - 6.80 ppb
20160.594 ppb163ND - 3.50 ppb
2017ND160ND
20181.75 ppb1612ND - 3.20 ppb
20191.14 ppb169ND - 3.40 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
2014-02-18Q14051400062.70 ppb
2014-02-18Q14051400053.00 ppb
2014-02-18Q14051400042.40 ppb
2014-02-18Q1405140003ND
2014-04-17Q14124330043.20 ppb
2014-04-17Q14124330033.90 ppb
2014-04-17Q14124330023.90 ppb
2014-04-17Q14124330014.10 ppb
2014-07-03Q1425908004ND
2014-07-03Q1425908003ND
2014-07-03Q1425908001ND
2014-07-03Q1425908002ND
2014-10-22Q1453647004ND
2014-10-22Q14536470033.60 ppb
2014-10-22Q14536470024.50 ppb
2014-10-22Q14536470013.20 ppb
2015-02-11Q1505703004ND
2015-02-11Q15057030034.10 ppb
2015-02-11Q15057030024.30 ppb
2015-02-11Q15057030013.80 ppb
2015-04-20Q15146570036.10 ppb
2015-04-20Q15146570045.40 ppb
2015-04-20Q15146570066.80 ppb
2015-04-20Q15146570056.60 ppb
2015-07-14Q1527119004ND
2015-07-14Q1527119003ND
2015-07-14Q1527119002ND
2015-07-14Q1527119001ND
2015-10-08Q15397080043.00 ppb
2015-10-08Q15397080033.00 ppb
2015-10-08Q15397080022.40 ppb
2015-10-08Q15397080012.10 ppb
2016-01-06Q1600326002ND
2016-01-06Q1600326001ND
2016-01-06Q1600326003ND
2016-01-06Q1600326004ND
2016-04-06Q16136730043.50 ppb
2016-04-06Q16136730032.90 ppb
2016-04-06Q1613673002ND
2016-04-06Q16136730013.10 ppb
2016-07-26Q1630655004ND
2016-07-26Q1630655003ND
2016-07-26Q1630655002ND
2016-07-26Q1630655001ND
2016-10-12Q1643610001ND
2016-10-12Q1643610004ND
2016-10-12Q1643610003ND
2016-10-12Q1643610002ND
2017-01-19Q1702694006ND
2017-01-19Q1702694003ND
2017-01-19Q1702694005ND
2017-01-19Q1702694002ND
2017-04-17Q1715800004ND
2017-04-17Q1715800003ND
2017-04-17Q1715800002ND
2017-04-17Q1715800001ND
2017-07-12Q1728657002ND
2017-07-12Q1728657001ND
2017-07-12Q1728657003ND
2017-07-12Q1728657004ND
2017-10-25Q1755289002ND
2017-10-25Q1755289004ND
2017-10-25Q1755289001ND
2017-10-25Q1755289003ND
2018-01-30Q1803429002ND
2018-01-30Q1803429005ND
2018-01-30Q1803429001ND
2018-01-30Q1803429004ND
2018-04-25Q18169980032.20 ppb
2018-04-25Q18169980012.50 ppb
2018-04-25Q18169980042.50 ppb
2018-04-25Q18169980022.50 ppb
2018-08-07Q18312650051.60 ppb
2018-08-07Q18312650041.40 ppb
2018-08-07Q18312650031.30 ppb
2018-08-07Q18312650021.70 ppb
2018-11-07Q18449720043.20 ppb
2018-11-07Q18449720033.20 ppb
2018-11-07Q18449720023.20 ppb
2018-11-07Q18449720012.70 ppb
2019-01-23Q1903743003ND
2019-01-23Q1903743001ND
2019-01-23Q1903743002ND
2019-01-23Q1903743004ND
2019-04-16Q19151780063.40 ppb
2019-04-16Q19151780052.60 ppb
2019-04-16Q19151780042.90 ppb
2019-04-16Q19151780032.50 ppb
2019-07-30Q19486710042.00 ppb
2019-07-30Q19486710031.20 ppb
2019-07-30Q19486710021.50 ppb
2019-07-30Q19486710011.10 ppb
2019-10-01Q1970365001ND
2019-10-01Q19703650041.000 ppb
2019-10-01Q1970365003ND
2019-10-01Q1970365002ND