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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Bear Creek Special Utility District

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

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.17 ppb62ND - 3.80 ppb
20152.81 ppb84ND - 9.00 ppb
2016ND80ND
2017ND80ND
20181.76 ppb86ND - 2.70 ppb
20191.41 ppb86ND - 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
2014-04-28Q1413595004ND
2014-04-28Q14135950033.80 ppb
2014-07-25Q1431514002ND
2014-07-25Q1431514001ND
2014-10-21Q14538210023.20 ppb
2014-10-21Q1453821001ND
2015-01-27Q15030420042.50 ppb
2015-01-27Q15030420032.60 ppb
2015-04-28Q1515881002ND
2015-04-28Q1515881001ND
2015-09-18Q15368720028.40 ppb
2015-09-18Q15368720019.00 ppb
2015-11-10Q1544439002ND
2015-11-10Q1544439001ND
2016-01-25Q1603374002ND
2016-01-25Q1603374001ND
2016-05-10Q1618357002ND
2016-05-10Q1618357001ND
2016-08-01Q1631430002ND
2016-08-01Q1631430001ND
2016-10-21Q1645007003ND
2016-10-21Q1645007004ND
2017-02-01Q1704361002ND
2017-02-01Q1704361001ND
2017-05-03Q1718514002ND
2017-05-03Q1718514001ND
2017-07-25Q1730627002ND
2017-07-25Q1730627001ND
2017-11-03Q1757159002ND
2017-11-03Q1757159004ND
2018-02-01Q1804133002ND
2018-02-01Q1804133001ND
2018-05-10Q18194030012.10 ppb
2018-05-10Q18194030022.10 ppb
2018-08-23Q18340320022.30 ppb
2018-08-23Q18340320012.70 ppb
2018-11-07Q18448560042.60 ppb
2018-11-07Q18448560032.30 ppb
2019-02-07Q19058910012.20 ppb
2019-02-07Q19058910022.10 ppb
2019-05-09Q19233240022.00 ppb
2019-05-09Q19233240011.80 ppb
2019-09-06Q19635190021.30 ppb
2019-09-06Q1963519001ND
2019-11-14Q1976915003ND
2019-11-14Q19769150041.90 ppb