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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Cameron Parish Water Works District 9

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
20151.03 ppb162ND - 8.20 ppb
20164.89 ppb168ND - 19.5 ppb
20170.118 ppb162ND - 0.940 ppb
20180.375 ppb164ND - 1.60 ppb
20190.931 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
2014-06-05L0044260-02ND
2014-06-05L0044260-01ND
2014-06-05L0044260-02ND
2014-06-05L0044260-01ND
2014-09-09L0048049-01ND
2014-09-09L0048049-02ND
2014-09-09L0048049-02ND
2014-09-09L0048049-01ND
2014-12-09L0051616-01ND
2014-12-09L0051616-02ND
2014-12-09L0051616-02ND
2014-12-09L0051616-01ND
2015-03-12LA4654-1ND
2015-03-12LA4654-2ND
2015-03-12LA4654-2ND
2015-03-12LA4654-1ND
2015-06-0835193086001ND
2015-06-0835193086002ND
2015-06-0835193086002ND
2015-06-0835193086001ND
2015-09-17LA11925-18.20 ppb
2015-09-17LA11925-2ND
2015-09-17LA11925-2ND
2015-09-17LA11925-18.20 ppb
2015-12-11LA15163-2ND
2015-12-11LA15163-2ND
2015-12-11LA15163-1ND
2015-12-11LA15163-1ND
2016-03-21LA18614-1ND
2016-03-21LA18614-2ND
2016-03-21LA18614-1ND
2016-03-21LA18614-2ND
2016-06-17LA22089-1ND
2016-06-17LA22089-2ND
2016-06-17LA22089-1ND
2016-06-17LA22089-2ND
2016-09-15LA25584-216.8 ppb
2016-09-15LA25584-216.8 ppb
2016-09-15LA25584-119.5 ppb
2016-09-15LA25584-119.5 ppb
2016-12-15LA28895-21.40 ppb
2016-12-15LA28895-21.40 ppb
2016-12-15LA28895-11.40 ppb
2016-12-15LA28895-11.40 ppb
2017-03-1635301468005ND
2017-03-1635301468004ND
2017-03-1635301468005ND
2017-03-1635301468004ND
2017-06-0935317531013ND
2017-06-0935317531014ND
2017-06-0935317531014ND
2017-06-0935317531013ND
2017-09-1935337416005ND
2017-09-19353374160060.940 ppb
2017-09-19353374160060.940 ppb
2017-09-1935337416005ND
2017-12-1335363785002ND
2017-12-1335363785001ND
2017-12-1335363785001ND
2017-12-1335363785002ND
2018-03-1535380734001ND
2018-03-1535380734002ND
2018-03-1535380734001ND
2018-03-1535380734002ND
2018-06-2035400026001ND
2018-06-20354000260021.60 ppb
2018-06-2035400026001ND
2018-06-20354000260021.60 ppb
2018-09-20354195130021.40 ppb
2018-09-2035419513001ND
2018-09-2035419513001ND
2018-09-20354195130021.40 ppb
2018-12-1735438491001ND
2018-12-1735438491002ND
2018-12-1735438491001ND
2018-12-1735438491002ND
2019-03-2135457157002ND
2019-03-2135457157001ND
2019-03-2135457157001ND
2019-03-2135457157002ND
2019-06-13354757780021.80 ppb
2019-06-13354757780021.80 ppb
2019-06-13354757780010.950 ppb
2019-06-13354757780010.950 ppb
2019-09-16354994080022.20 ppb
2019-09-16354994080011.50 ppb
2019-09-16354994080011.50 ppb
2019-09-16354994080022.20 ppb
2019-12-16355204110011.000 ppb
2019-12-1635520411002ND
2019-12-16355204110011.000 ppb
2019-12-1635520411002ND