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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Town of Ferriday 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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20145.95 ppb168ND - 27.0 ppb
20155.21 ppb1614ND - 15.5 ppb
20163.36 ppb1612ND - 8.70 ppb
20171.78 ppb164ND - 7.50 ppb
2018ND160ND
20196.50 ppb1614ND - 21.1 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
2014-02-19L0039977-0212.0 ppb
2014-02-19L0039977-0127.0 ppb
2014-02-19L0039977-0212.0 ppb
2014-02-19L0039977-0127.0 ppb
2014-05-14L0043099-09ND
2014-05-14L0043099-10ND
2014-05-14L0043099-10ND
2014-05-14L0043099-09ND
2014-08-14351514680017.40 ppb
2014-08-14351514680021.20 ppb
2014-08-14351514680021.20 ppb
2014-08-14351514680017.40 ppb
2014-11-17L0050823-01ND
2014-11-17L0050823-02ND
2014-11-17L0050823-02ND
2014-11-17L0050823-01ND
2015-02-17LA3922-1ND
2015-02-17LA3922-21.50 ppb
2015-02-17LA3922-21.50 ppb
2015-02-17LA3922-1ND
2015-05-19351901260013.40 ppb
2015-05-19351901260023.10 ppb
2015-05-19351901260023.10 ppb
2015-05-19351901260013.40 ppb
2015-08-18352040920022.10 ppb
2015-08-18352040920022.10 ppb
2015-08-18352040920012.60 ppb
2015-08-18352040920012.60 ppb
2015-11-17LA14376-115.5 ppb
2015-11-17LA14376-213.5 ppb
2015-11-17LA14376-213.5 ppb
2015-11-17LA14376-115.5 ppb
2016-02-18LA17444-12.10 ppb
2016-02-18LA17444-22.10 ppb
2016-02-18LA17444-22.10 ppb
2016-02-18LA17444-12.10 ppb
2016-05-17LA20830-2ND
2016-05-17LA20830-1ND
2016-05-17LA20830-2ND
2016-05-17LA20830-1ND
2016-08-16LA24653-15.90 ppb
2016-08-16LA24653-15.90 ppb
2016-08-24LA24653-28.70 ppb
2016-08-24LA24653-28.70 ppb
2016-11-14LA27748-14.70 ppb
2016-11-14LA27748-14.70 ppb
2016-11-18LA27914-13.40 ppb
2016-11-18LA27914-13.40 ppb
2017-02-0835294518002ND
2017-02-0835294518001ND
2017-02-0835294518001ND
2017-02-0835294518002ND
2017-05-0135309911005ND
2017-05-0135309911005ND
2017-05-0135309911006ND
2017-05-0135309911006ND
2017-08-09353296870057.50 ppb
2017-08-09353296870066.70 ppb
2017-08-09353296870057.50 ppb
2017-08-09353296870066.70 ppb
2017-11-0835347264002ND
2017-11-0835347264001ND
2017-11-0835347264001ND
2017-11-0835347264002ND
2018-02-2035375729002ND
2018-02-2035375729001ND
2018-02-2035375729002ND
2018-02-2035375729001ND
2018-05-0935391497002ND
2018-05-0935391497001ND
2018-05-0935391497001ND
2018-05-0935391497002ND
2018-08-0135408243002ND
2018-08-0135408243001ND
2018-08-0135408243001ND
2018-08-0135408243002ND
2018-11-2735433612001ND
2018-11-2735433612002ND
2018-11-2735433612001ND
2018-11-2735433612002ND
2019-02-133544850100219.0 ppb
2019-02-133544850100121.1 ppb
2019-02-133544850100121.1 ppb
2019-02-133544850100219.0 ppb
2019-05-07354677150022.40 ppb
2019-05-07354677150022.40 ppb
2019-05-07354677150012.20 ppb
2019-05-07354677150012.20 ppb
2019-08-2135492680002ND
2019-08-21354926800011.40 ppb
2019-08-21354926800011.40 ppb
2019-08-2135492680002ND
2019-11-13355126770012.50 ppb
2019-11-13355126770023.40 ppb
2019-11-13355126770012.50 ppb
2019-11-13355126770023.40 ppb