Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

City of Cockrell Hill

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.29 ppb882.40 ppb - 6.40 ppb
20150.963 ppb82ND - 3.90 ppb
2016ND80ND
2017ND80ND
20186.28 ppb87ND - 35.4 ppb
20190.675 ppb82ND - 3.20 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
2014-03-17Q14084750023.60 ppb
2014-03-17Q14084750013.20 ppb
2014-06-04Q14193340022.40 ppb
2014-06-04Q14193340015.60 ppb
2014-09-18Q14456820025.00 ppb
2014-09-18Q14456820016.40 ppb
2014-11-17Q14561410023.60 ppb
2014-11-17Q14561410014.50 ppb
2015-03-11Q1509067002ND
2015-03-11Q15090670013.80 ppb
2015-06-09Q1521041001ND
2015-06-09Q15210410023.90 ppb
2015-08-18Q1532668002ND
2015-08-18Q1532668001ND
2015-10-21Q1541385002ND
2015-10-21Q1541385001ND
2016-02-03Q1604946002ND
2016-02-03Q1604946001ND
2016-05-19Q1619951002ND
2016-05-19Q1619951001ND
2016-07-26Q1630656001ND
2016-07-26Q1630656002ND
2016-10-21Q1645091001ND
2016-10-21Q1645091002ND
2017-02-09Q1705777002ND
2017-02-09Q1705777001ND
2017-04-24Q1716528003ND
2017-04-24Q1716528002ND
2017-07-26Q1731047002ND
2017-07-26Q1731047001ND
2017-11-08Q1757340001ND
2017-11-08Q1757340002ND
2018-02-07Q180509500335.4 ppb
2018-02-07Q1805095002ND
2018-05-02Q18178030022.80 ppb
2018-05-02Q18178030012.40 ppb
2018-08-13Q18322360012.60 ppb
2018-08-13Q18322360022.30 ppb
2018-11-08Q18448790022.60 ppb
2018-11-08Q18448790012.10 ppb
2019-01-16Q19023630032.20 ppb
2019-01-16Q19023630013.20 ppb
2019-04-17Q1915783001ND
2019-04-17Q1915783002ND
2019-09-05Q1962653002ND
2019-09-05Q1962653001ND
2019-11-07Q1976136001ND
2019-11-07Q1976136002ND