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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Wylie

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
20141.56 ppb166ND - 6.30 ppb
20153.93 ppb169ND - 11.4 ppb
20160.269 ppb161ND - 4.30 ppb
2017ND160ND
20181.61 ppb1612ND - 3.00 ppb
20191.69 ppb1614ND - 3.50 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
2014-02-10Q1404131004ND
2014-02-10Q1404131003ND
2014-02-10Q1404131002ND
2014-02-10Q1404131001ND
2014-04-08Q1410812007ND
2014-04-08Q14108120042.20 ppb
2014-04-08Q14108120032.30 ppb
2014-04-08Q1410812002ND
2014-08-01Q1433379002ND
2014-08-01Q1433379001ND
2014-08-01Q1433379003ND
2014-08-01Q1433379004ND
2014-10-21Q14538360045.00 ppb
2014-10-21Q14538360034.80 ppb
2014-10-21Q14538360026.30 ppb
2014-10-21Q14538360014.30 ppb
2015-01-28Q15033430042.60 ppb
2015-01-28Q15033430033.00 ppb
2015-01-28Q15033430023.80 ppb
2015-01-28Q15033430012.30 ppb
2015-04-23Q1515259003ND
2015-04-23Q1515259004ND
2015-04-23Q1515259006ND
2015-04-23Q1515259005ND
2015-07-29Q1529664001ND
2015-07-29Q1529664004ND
2015-07-29Q1529664003ND
2015-07-29Q15296640028.00 ppb
2015-10-13Q154007200410.6 ppb
2015-10-13Q154007200311.1 ppb
2015-10-13Q154007200211.4 ppb
2015-10-13Q154007200110.00 ppb
2016-02-01Q1604377002ND
2016-02-01Q1604377001ND
2016-02-01Q1604377003ND
2016-02-01Q1604377004ND
2016-05-02Q1617285004ND
2016-05-02Q1617285003ND
2016-05-02Q1617285002ND
2016-05-02Q16172850014.30 ppb
2016-07-28Q1631002004ND
2016-07-28Q1631002003ND
2016-07-28Q1631002002ND
2016-07-28Q1631002001ND
2016-10-17Q1644219004ND
2016-10-17Q1644219007ND
2016-10-17Q1644219006ND
2016-10-17Q1644219005ND
2017-01-18Q1702896002ND
2017-01-18Q1702896004ND
2017-01-18Q1702896001ND
2017-01-18Q1702896003ND
2017-04-28Q1717609004ND
2017-04-28Q1717609003ND
2017-04-28Q1717609002ND
2017-04-28Q1717609001ND
2017-07-19Q1730097002ND
2017-07-19Q1730097001ND
2017-07-19Q1730097004ND
2017-07-19Q1730097003ND
2017-10-18Q1753895007ND
2017-10-18Q1753895003ND
2017-10-18Q1753895006ND
2017-10-18Q1753895002ND
2018-01-23Q1802552002ND
2018-01-23Q1802552004ND
2018-01-23Q1802552001ND
2018-01-23Q1802552003ND
2018-04-25Q18170230012.40 ppb
2018-04-25Q18170230022.40 ppb
2018-04-25Q18170230032.40 ppb
2018-04-25Q18170230042.20 ppb
2018-07-27Q18301060012.20 ppb
2018-07-27Q18301060072.00 ppb
2018-07-27Q18301060063.00 ppb
2018-07-27Q18301060052.10 ppb
2018-10-19Q18420250041.90 ppb
2018-10-19Q18420250031.50 ppb
2018-10-19Q18420250021.50 ppb
2018-10-19Q18420250012.10 ppb
2019-01-15Q19020430052.10 ppb
2019-01-15Q19020430042.00 ppb
2019-01-15Q19020430062.20 ppb
2019-01-15Q19020430072.10 ppb
2019-04-24Q19168050022.60 ppb
2019-04-24Q19168050041.30 ppb
2019-04-24Q19168050013.50 ppb
2019-04-24Q19168050031.30 ppb
2019-08-02Q19507200041.70 ppb
2019-08-02Q19507200032.20 ppb
2019-08-02Q19507200022.10 ppb
2019-08-02Q19507200011.90 ppb
2019-11-14Q19769140011.000 ppb
2019-11-14Q1976914004ND
2019-11-14Q1976914003ND
2019-11-14Q19769140021.000 ppb