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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Johnson County SUD

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
20140.769 ppb164ND - 3.70 ppb
20150.500 ppb162ND - 5.00 ppb
20160.938 ppb163ND - 6.50 ppb
20170.381 ppb162ND - 5.00 ppb
20181.48 ppb1612ND - 3.50 ppb
20190.963 ppb1610ND - 2.20 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
2014-02-20Q1405677004ND
2014-02-20Q1405677003ND
2014-02-20Q1405677002ND
2014-02-20Q1405677001ND
2014-05-29Q1418453017ND
2014-05-29Q14184530163.70 ppb
2014-05-29Q1418453015ND
2014-05-29Q14184530142.90 ppb
2014-07-22Q1430047007ND
2014-07-22Q1430047006ND
2014-07-22Q1430047004ND
2014-07-22Q1430047005ND
2014-10-28Q1454251001ND
2014-10-28Q14542510043.60 ppb
2014-10-28Q14542510032.10 ppb
2014-10-28Q1454251002ND
2015-02-03Q1504045019ND
2015-02-03Q1504045018ND
2015-02-03Q1504045017ND
2015-02-03Q1504045016ND
2015-04-16Q1514524022ND
2015-04-16Q1514524023ND
2015-04-16Q1514524021ND
2015-04-16Q1514524024ND
2015-08-05Q1531043018ND
2015-08-05Q1531043017ND
2015-08-05Q1531043016ND
2015-08-05Q1531043015ND
2015-12-07Q1548491004ND
2015-12-07Q1548491003ND
2015-12-07Q15484910023.00 ppb
2015-12-07Q15484910015.00 ppb
2016-03-17Q1611268002ND
2016-03-17Q1611268001ND
2016-03-17Q1611268004ND
2016-03-17Q16112680032.60 ppb
2016-06-01Q1621680015ND
2016-06-01Q1621680014ND
2016-06-01Q1621680013ND
2016-06-01Q1621680012ND
2016-09-19Q1638628004ND
2016-09-19Q16386280035.90 ppb
2016-09-19Q16386280026.50 ppb
2016-09-19Q1638628001ND
2016-11-21Q1650944009ND
2016-11-21Q1650944024ND
2016-11-21Q1650944010ND
2016-11-21Q1650944023ND
2017-02-14Q1706687006ND
2017-02-14Q17066870045.00 ppb
2017-02-14Q17066870141.10 ppb
2017-02-14Q1706687003ND
2017-05-04Q1718433014ND
2017-05-04Q1718433004ND
2017-05-04Q1718433013ND
2017-05-04Q1718433003ND
2017-08-16Q1736301049ND
2017-08-16Q1736301048ND
2017-08-16Q1736301050ND
2017-08-16Q1736301051ND
2017-11-07Q1756990029ND
2017-11-07Q1756990009ND
2017-11-07Q1756990028ND
2017-11-07Q1756990008ND
2018-02-21Q1807323012ND
2018-02-21Q1807323011ND
2018-02-21Q1807323005ND
2018-02-21Q1807323010ND
2018-05-30Q18215250011.60 ppb
2018-05-30Q18215250031.80 ppb
2018-05-30Q18215250041.60 ppb
2018-05-30Q18215250021.20 ppb
2018-09-11Q18361640051.50 ppb
2018-09-11Q18361640041.70 ppb
2018-09-11Q18361640031.60 ppb
2018-09-11Q18361640021.60 ppb
2018-12-10Q18502360072.10 ppb
2018-12-10Q18502360063.40 ppb
2018-12-10Q18502360052.10 ppb
2018-12-10Q18502360043.50 ppb
2019-02-20Q19075290361.50 ppb
2019-02-20Q19075290161.000 ppb
2019-02-20Q19075290171.80 ppb
2019-02-20Q19075290181.60 ppb
2019-05-21Q19274290211.70 ppb
2019-05-21Q19274290202.20 ppb
2019-05-21Q19274290191.70 ppb
2019-05-21Q1927429018ND
2019-07-31Q19499480051.40 ppb
2019-07-31Q19499480041.10 ppb
2019-07-31Q19499480031.40 ppb
2019-07-31Q1949948002ND
2019-10-16Q1972826001ND
2019-10-16Q1972826004ND
2019-10-16Q1972826003ND
2019-10-16Q1972826002ND