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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Bellaire

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
20151.08 ppb165ND - 4.90 ppb
20162.07 ppb168ND - 9.60 ppb
20170.338 ppb161ND - 5.40 ppb
20180.981 ppb165ND - 3.40 ppb
20192.69 ppb168ND - 6.50 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
2014-03-03AC45258ND
2014-03-03AC45261ND
2014-03-03AC45259ND
2014-03-03AC45254ND
2014-04-07AC49611ND
2014-06-06AC56293ND
2014-06-06AC56290ND
2014-06-06AC56281ND
2014-09-25AC68297ND
2014-09-25AC68289ND
2014-09-25AC68290ND
2014-09-25AC68287ND
2014-11-21AC72733ND
2014-11-21AC72728ND
2014-11-21AC72734ND
2014-11-21AC72762ND
2015-01-20AC76921ND
2015-01-20AC76916ND
2015-01-20AC76919ND
2015-01-20AC76911ND
2015-04-28AC896903.50 ppb
2015-04-28AC89691ND
2015-04-28AC896924.90 ppb
2015-04-28AC89688ND
2015-07-20AD00092ND
2015-07-20AD001253.50 ppb
2015-07-20AD001292.60 ppb
2015-07-20AD001422.80 ppb
2015-11-13AD13597ND
2015-11-13AD13599ND
2015-11-13AD13596ND
2015-11-13AD13598ND
2016-01-12AD17555ND
2016-01-12AD175642.00 ppb
2016-01-12AD17554ND
2016-01-12AD17560ND
2016-04-06AD320556.70 ppb
2016-04-06AD320599.60 ppb
2016-04-06AD32025ND
2016-04-06AD320485.80 ppb
2016-07-07AD432812.30 ppb
2016-07-07AD432912.40 ppb
2016-07-07AD432872.10 ppb
2016-07-07AD432822.20 ppb
2016-10-04AD52460ND
2016-10-04AD52436ND
2016-10-04AD52464ND
2016-10-04AD52462ND
2017-01-18AD65320ND
2017-01-18AD65319ND
2017-01-18AD65318ND
2017-01-18AD65321ND
2017-04-10AD78902ND
2017-04-10AD78903ND
2017-04-10AD78901ND
2017-04-10AD78900ND
2017-07-20AD90096ND
2017-07-20AD900955.40 ppb
2017-07-20AD90092ND
2017-07-20AD90091ND
2017-10-16AE00790ND
2017-10-16AE00829ND
2017-10-16AE00830ND
2017-10-16AE00789ND
2018-01-24AE10136ND
2018-01-24AE10137ND
2018-01-24AE10139ND
2018-01-24AE10138ND
2018-04-09AE216313.40 ppb
2018-04-09AE216303.30 ppb
2018-04-09AE216433.40 ppb
2018-04-09AE21669ND
2018-07-02AE321672.50 ppb
2018-07-02AE321643.10 ppb
2018-07-02AE32170ND
2018-07-02AE32163ND
2018-10-12AE43395ND
2018-10-12AE43389ND
2018-10-12AE43390ND
2018-10-12AE43394ND
2019-01-15AE498044.80 ppb
2019-01-15AE498054.70 ppb
2019-01-15AE498035.50 ppb
2019-01-15AE498024.30 ppb
2019-04-02AE60861ND
2019-04-02AE60842ND
2019-04-02AE60839ND
2019-04-02AE60841ND
2019-07-10AE73859ND
2019-07-10AE73844ND
2019-07-10AE738565.20 ppb
2019-07-10AE738455.50 ppb
2019-10-22AE87194ND
2019-10-22AE871936.50 ppb
2019-10-22AE87195ND
2019-10-22AE871916.50 ppb