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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Galveston County WCID 1

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
2014ND160ND
20150.963 ppb166ND - 2.70 ppb
2016ND160ND
20170.525 ppb162ND - 4.40 ppb
2018ND160ND
2019ND160ND

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
2014-02-21AC44226ND
2014-02-21AC44230ND
2014-02-21AC44227ND
2014-02-21AC44225ND
2014-06-03AC55872ND
2014-06-03AC55878ND
2014-06-03AC55877ND
2014-06-03AC55876ND
2014-07-30AC61614ND
2014-07-30AC61608ND
2014-07-30AC61617ND
2014-07-30AC61615ND
2014-10-22AC70303ND
2014-10-22AC70304ND
2014-10-22AC70301ND
2014-10-22AC70302ND
2015-01-15AC76421ND
2015-01-15AC76422ND
2015-01-15AC76428ND
2015-01-15AC76427ND
2015-05-06AC907072.30 ppb
2015-05-06AC907472.60 ppb
2015-05-06AC90752ND
2015-05-06AC907452.50 ppb
2015-07-07AC985362.60 ppb
2015-07-07AC985342.70 ppb
2015-07-07AC985372.70 ppb
2015-07-07AC98533ND
2015-10-28AD11981ND
2015-10-28AD11982ND
2015-10-28AD11984ND
2015-10-28AD11983ND
2016-01-26AD20033ND
2016-01-26AD20041ND
2016-01-26AD20028ND
2016-01-26AD20029ND
2016-05-16AD36756ND
2016-05-16AD36780ND
2016-05-16AD36781ND
2016-05-16AD36752ND
2016-09-29AD51874ND
2016-09-29AD51880ND
2016-09-29AD51872ND
2016-09-29AD51873ND
2016-11-29AD59335ND
2016-11-29AD59340ND
2016-11-29AD59342ND
2016-11-29AD59338ND
2017-01-26AD67138ND
2017-01-26AD67132ND
2017-01-26AD67130ND
2017-01-26AD67131ND
2017-04-25AD81130ND
2017-04-25AD81150ND
2017-04-25AD81124ND
2017-04-25AD811264.40 ppb
2017-07-24AD90283ND
2017-07-24AD90336ND
2017-07-24AD90287ND
2017-07-24AD902864.00 ppb
2017-10-16AE00813ND
2017-10-16AE00812ND
2017-10-16AE00811ND
2017-10-16AE00810ND
2018-02-26AE15345ND
2018-02-26AE15346ND
2018-02-26AE15347ND
2018-02-26AE15348ND
2018-05-21AE26975ND
2018-05-21AE26960ND
2018-05-21AE26976ND
2018-05-21AE26961ND
2018-08-28AE38649ND
2018-08-28AE38652ND
2018-08-28AE38653ND
2018-08-28AE38647ND
2018-10-15AE43601ND
2018-10-15AE43600ND
2018-10-15AE43599ND
2018-10-15AE43598ND
2019-01-31AE52412ND
2019-01-31AE52409ND
2019-01-31AE52411ND
2019-01-31AE52410ND
2019-04-22AE63166ND
2019-04-22AE63163ND
2019-04-22AE63164ND
2019-04-22AE63169ND
2019-07-15AE74328ND
2019-07-15AE74347ND
2019-07-15AE74332ND
2019-07-15AE74331ND
2019-10-02AE85465ND
2019-10-02AE85466ND
2019-10-02AE85462ND
2019-10-02AE85463ND