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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Lyford

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

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND60ND
2017ND80ND
2018ND80ND
2019ND80ND

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
2014-03-03AC45334ND
2014-06-02AC55668ND
2014-07-21AC60265ND
2014-11-17AC72237ND
2015-02-24AC81670ND
2015-05-28AC93603ND
2015-09-21AD07798ND
2015-11-09AD12984ND
2016-02-24AD25357ND
2016-05-16AD36812ND
2016-09-26AD51368ND
2016-09-26AD51453ND
2016-11-30AD59553ND
2016-11-30AD59561ND
2017-03-13AD74628ND
2017-03-13AD74632ND
2017-05-30AD85884ND
2017-05-30AD85883ND
2017-09-05AD94698ND
2017-09-05AD94709ND
2017-11-02AE03420ND
2017-11-02AE03417ND
2018-02-23AE15357ND
2018-02-23AE15358ND
2018-04-27AE24371ND
2018-04-27AE24369ND
2018-09-10AE39759ND
2018-09-10AE39773ND
2018-10-08AE43091ND
2018-10-08AE43096ND
2019-02-28AE56527ND
2019-02-28AE56509ND
2019-04-01AE60627ND
2019-04-01AE60645ND
2019-07-16AE74591ND
2019-07-16AE74590ND
2019-10-07AE85793ND
2019-10-07AE85809ND