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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Angleton

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
2014ND160ND
20150.763 ppb164ND - 3.60 ppb
20160.156 ppb161ND - 2.50 ppb
2017ND160ND
2018ND160ND
20191.54 ppb164ND - 7.90 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
2014-02-25AC44464ND
2014-02-25AC44447ND
2014-02-25AC44429ND
2014-02-25AC44473ND
2014-05-08AC53626ND
2014-05-08AC53593ND
2014-05-08AC53629ND
2014-05-08AC53610ND
2014-08-08AC62907ND
2014-08-08AC62926ND
2014-08-08AC62906ND
2014-08-08AC62905ND
2014-11-03AC71031ND
2014-11-03AC71018ND
2014-11-03AC71026ND
2014-11-03AC71022ND
2015-01-15AC764373.10 ppb
2015-01-15AC764333.60 ppb
2015-01-15AC764392.30 ppb
2015-01-15AC764343.20 ppb
2015-04-06AC87333ND
2015-04-06AC87341ND
2015-04-06AC87342ND
2015-04-06AC87339ND
2015-07-31AD02070ND
2015-07-31AD02071ND
2015-07-31AD02072ND
2015-07-31AD02068ND
2015-10-08AD09989ND
2015-10-08AD09988ND
2015-10-08AD09984ND
2015-10-08AD09987ND
2016-01-20AD18906ND
2016-01-20AD18908ND
2016-01-20AD18905ND
2016-01-20AD18907ND
2016-04-14AD33173ND
2016-04-14AD33175ND
2016-04-14AD33174ND
2016-04-14AD33171ND
2016-07-19AD446842.50 ppb
2016-07-19AD44688ND
2016-07-19AD44690ND
2016-07-19AD44687ND
2016-12-08AD61142ND
2016-12-08AD61146ND
2016-12-08AD61145ND
2016-12-08AD61143ND
2017-01-12AD64677ND
2017-01-12AD64676ND
2017-01-12AD64671ND
2017-01-12AD64675ND
2017-05-23AD85183ND
2017-05-23AD85187ND
2017-05-23AD85184ND
2017-05-23AD85186ND
2017-07-13AD89257ND
2017-07-13AD89258ND
2017-07-13AD89260ND
2017-07-13AD89259ND
2017-10-03AD99023ND
2017-10-03AD99024ND
2017-10-03AD99022ND
2017-10-03AD99025ND
2018-01-25AE10519ND
2018-01-25AE10516ND
2018-01-25AE10518ND
2018-01-25AE10517ND
2018-04-19AE23188ND
2018-04-19AE23198ND
2018-04-19AE23197ND
2018-04-19AE23187ND
2018-08-15AE37127ND
2018-08-15AE37126ND
2018-08-15AE37124ND
2018-08-15AE37122ND
2018-11-08AE45758ND
2018-11-08AE45756ND
2018-11-08AE45757ND
2018-11-08AE45759ND
2019-01-28AE515976.30 ppb
2019-01-28AE515966.70 ppb
2019-01-28AE515957.90 ppb
2019-01-28AE51598ND
2019-05-02AE64621ND
2019-05-02AE64622ND
2019-05-02AE64594ND
2019-05-02AE64587ND
2019-08-09AE78016ND
2019-08-09AE78007ND
2019-08-09AE78009ND
2019-08-09AE78008ND
2019-10-01AE853013.80 ppb
2019-10-01AE85304ND
2019-10-01AE85299ND
2019-10-01AE85309ND