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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Backwood Village Water System

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

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND160ND
20170.283 ppb166ND - 0.900 ppb
20180.850 ppb166ND - 2.90 ppb
20190.611 ppb168ND - 1.50 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
2014-06-101308802ND
2014-06-101308801ND
2014-06-101308802ND
2014-06-101308801ND
2015-03-121378288ND
2015-03-121378289ND
2015-03-121378289ND
2015-03-121378288ND
2016-03-231476794ND
2016-03-231476795ND
2016-03-231476795ND
2016-03-231476794ND
2016-06-221501567ND
2016-06-221501568ND
2016-06-221501568ND
2016-06-221501567ND
2016-09-211526548ND
2016-09-211526549ND
2016-09-211526549ND
2016-09-211526548ND
2016-12-211550366ND
2016-12-211550367ND
2016-12-211550367ND
2016-12-211550366ND
2017-03-2235302283005ND
2017-03-2235302283006ND
2017-03-2235302283006ND
2017-03-2235302283005ND
2017-06-1935319444006ND
2017-06-19353194440050.620 ppb
2017-06-19353194440050.620 ppb
2017-06-1935319444006ND
2017-09-2035337201003ND
2017-09-20353372010020.900 ppb
2017-09-20353372010020.900 ppb
2017-09-2035337201003ND
2017-12-1735364467001ND
2017-12-17353644670020.740 ppb
2017-12-1735364467001ND
2017-12-17353644670020.740 ppb
2018-03-2035381351001ND
2018-03-2035381351002ND
2018-03-2035381351001ND
2018-03-2035381351002ND
2018-06-05353968240012.80 ppb
2018-06-05353968240022.90 ppb
2018-06-05353968240012.80 ppb
2018-06-05353968240022.90 ppb
2018-09-17354187530021.10 ppb
2018-09-1735418753001ND
2018-09-1735418753001ND
2018-09-17354187530021.10 ppb
2018-12-1235437300001ND
2018-12-1235437300002ND
2018-12-1235437300001ND
2018-12-1235437300002ND
2019-03-18354563140020.990 ppb
2019-03-1835456314001ND
2019-03-1835456314001ND
2019-03-18354563140020.990 ppb
2019-06-19354770810021.50 ppb
2019-06-19354770810021.50 ppb
2019-06-1935477081001ND
2019-06-1935477081001ND
2019-09-23355009310021.20 ppb
2019-09-2335500931001ND
2019-09-2335500931001ND
2019-09-23355009310021.20 ppb
2019-12-1835520381001ND
2019-12-18355203810021.20 ppb
2019-12-1835520381001ND
2019-12-18355203810021.20 ppb