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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Eros 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
20141.68 ppb168ND - 5.60 ppb
20150.788 ppb166ND - 2.80 ppb
20164.11 ppb168ND - 14.2 ppb
2017ND160ND
20180.613 ppb164ND - 2.50 ppb
20191.41 ppb1612ND - 2.60 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
2014-02-06L0039520-045.60 ppb
2014-02-06L0039520-035.00 ppb
2014-02-06L0039520-045.60 ppb
2014-02-06L0039520-035.00 ppb
2014-05-21L0043401-03ND
2014-05-21L0043401-04ND
2014-05-21L0043401-04ND
2014-05-21L0043401-03ND
2014-08-18351509890011.40 ppb
2014-08-18351509890021.40 ppb
2014-08-18351509890021.40 ppb
2014-08-18351509890011.40 ppb
2014-11-03L0050157-01ND
2014-11-03L0050157-02ND
2014-11-03L0050157-02ND
2014-11-03L0050157-01ND
2015-02-18LA3787-1ND
2015-02-18LA3787-2ND
2015-02-18LA3787-2ND
2015-02-18LA3787-1ND
2015-05-21351901240011.20 ppb
2015-05-2135190124002ND
2015-05-2135190124002ND
2015-05-21351901240011.20 ppb
2015-08-1335203109002ND
2015-08-1335203109001ND
2015-08-1335203109002ND
2015-08-1335203109001ND
2015-11-18LA14266-12.30 ppb
2015-11-18LA14266-22.80 ppb
2015-11-18LA14266-22.80 ppb
2015-11-18LA14266-12.30 ppb
2016-02-1035229692001ND
2016-02-1035229692002ND
2016-02-1035229692002ND
2016-02-1035229692001ND
2016-05-17LA20734-2ND
2016-05-17LA20734-1ND
2016-05-17LA20734-2ND
2016-05-17LA20734-1ND
2016-08-19LA24433-114.2 ppb
2016-08-19LA24433-214.1 ppb
2016-08-19LA24433-214.1 ppb
2016-08-19LA24433-114.2 ppb
2016-11-16LA27745-12.20 ppb
2016-11-16LA27745-22.40 ppb
2016-11-16LA27745-22.40 ppb
2016-11-16LA27745-12.20 ppb
2017-02-1335294965007ND
2017-02-1335294965006ND
2017-02-1335294965006ND
2017-02-1335294965007ND
2017-05-1135312128007ND
2017-05-1135312128007ND
2017-05-1135312128008ND
2017-05-1135312128008ND
2017-08-1535331285005ND
2017-08-1535331285006ND
2017-08-1535331285005ND
2017-08-1535331285006ND
2017-11-2035350174002ND
2017-11-2035350174001ND
2017-11-2035350174001ND
2017-11-2035350174002ND
2018-02-1235373922002ND
2018-02-1235373922001ND
2018-02-1235373922002ND
2018-02-1235373922001ND
2018-05-1035391961002ND
2018-05-1035391961002ND
2018-05-1035391961001ND
2018-05-1035391961001ND
2018-08-07354098960022.50 ppb
2018-08-07354098960012.40 ppb
2018-08-07354098960012.40 ppb
2018-08-07354098960022.50 ppb
2018-11-0635429706001ND
2018-11-0635429706002ND
2018-11-0635429706001ND
2018-11-0635429706002ND
2019-02-07354471460022.60 ppb
2019-02-07354471460012.30 ppb
2019-02-07354471460012.30 ppb
2019-02-07354471460022.60 ppb
2019-05-0735468220002ND
2019-05-0735468220002ND
2019-05-07354682200011.40 ppb
2019-05-07354682200011.40 ppb
2019-08-0635488695002ND
2019-08-06354886950012.00 ppb
2019-08-06354886950012.00 ppb
2019-08-0635488695002ND
2019-11-05355109250011.40 ppb
2019-11-05355109250021.60 ppb
2019-11-05355109250011.40 ppb
2019-11-05355109250021.60 ppb