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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Donna

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
2013N/A00N/A
20140.706 ppb161ND - 11.3 ppb
2015ND160ND
2016ND160ND
20170.525 ppb161ND - 8.40 ppb
20181.11 ppb164ND - 5.00 ppb
20190.925 ppb162ND - 8.00 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
2014-02-28AC45292ND
2014-02-28AC45323ND
2014-02-28AC45263ND
2014-02-28AC45262ND
2014-04-22AC51353ND
2014-04-22AC51354ND
2014-04-22AC51357ND
2014-04-22AC5135511.3 ppb
2014-07-23AC60760ND
2014-07-23AC60762ND
2014-07-23AC60761ND
2014-07-23AC60759ND
2014-10-21AC70154ND
2014-10-21AC70166ND
2014-10-21AC70172ND
2014-10-21AC70148ND
2015-01-21AC77195ND
2015-01-21AC77201ND
2015-01-21AC77194ND
2015-01-21AC77193ND
2015-04-07AC87476ND
2015-04-07AC87440ND
2015-04-07AC87456ND
2015-04-07AC87479ND
2015-07-14AC99326ND
2015-07-14AC99332ND
2015-07-14AC99335ND
2015-07-14AC99331ND
2015-10-20AD11171ND
2015-10-20AD11178ND
2015-10-20AD11157ND
2015-10-20AD11159ND
2016-03-02AD26624ND
2016-03-02AD26616ND
2016-03-02AD26620ND
2016-03-02AD26622ND
2016-06-08AD39754ND
2016-06-08AD39751ND
2016-06-08AD39718ND
2016-06-08AD39717ND
2016-07-14AD44234ND
2016-07-14AD44223ND
2016-07-14AD44225ND
2016-07-14AD44230ND
2016-11-15AD58002ND
2016-11-15AD57986ND
2016-11-15AD57984ND
2016-11-15AD58005ND
2017-01-10AD63923ND
2017-01-10AD63927ND
2017-01-10AD63929ND
2017-01-10AD63937ND
2017-05-01AD81751ND
2017-05-01AD81750ND
2017-05-01AD81749ND
2017-05-01AD817778.40 ppb
2017-07-12AD89054ND
2017-07-12AD89051ND
2017-07-12AD89055ND
2017-07-12AD89044ND
2017-10-31AE02904ND
2017-10-31AE02914ND
2017-10-31AE02921ND
2017-10-31AE02907ND
2018-01-24AE10152ND
2018-01-24AE10145ND
2018-01-24AE10144ND
2018-01-24AE10142ND
2018-04-11AE22041ND
2018-04-11AE22038ND
2018-04-11AE22042ND
2018-04-11AE22040ND
2018-08-16AE373274.50 ppb
2018-08-16AE373324.60 ppb
2018-08-16AE373315.00 ppb
2018-08-16AE373243.60 ppb
2018-10-10AE43057ND
2018-10-10AE43056ND
2018-10-10AE43075ND
2018-10-10AE43076ND
2019-02-26AE55924ND
2019-02-26AE55916ND
2019-02-26AE55915ND
2019-02-26AE55946ND
2019-05-21AE67337ND
2019-05-21AE67344ND
2019-05-21AE67333ND
2019-05-21AE67341ND
2019-09-05AE82251ND
2019-09-05AE82247ND
2019-09-05AE82248ND
2019-09-05AE82253ND
2019-12-03AE90991ND
2019-12-03AE909986.80 ppb
2019-12-03AE90992ND
2019-12-03AE909878.00 ppb