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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Town of Boone

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

 

90

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.000 ppb124ND - 7.70 ppb
20150.143 ppb141ND - 2.00 ppb
20160.200 ppb161ND - 3.20 ppb
20170.138 ppb161ND - 2.20 ppb
20180.131 ppb161ND - 2.10 ppb
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
2014-02-0492188737002-2ND
2014-02-0492188737004-2ND
2014-02-0492188737001-2ND
2014-05-0692200307001DIS1.50 ppb
2014-05-0692200307002DISND
2014-05-0692200307003DISND
2014-08-0592212154001TTH1.20 ppb
2014-08-0592212154002TTH1.60 ppb
2014-08-0592212154003TTH7.70 ppb
2014-11-1292225463001TTHND
2014-11-1292225463002TTHND
2014-11-1292225463003TTHND
2015-02-10ND
2015-02-10ND
2015-02-10ND
2015-05-12ND
2015-05-12ND
2015-05-12ND
2015-08-112.00 ppb
2015-08-11ND
2015-08-11ND
2015-08-31ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2016-02-0892285721001TTHND
2016-02-0892285721002TTHND
2016-02-0892285721003TTHND
2016-02-0892285721004TTH3.20 ppb
2016-05-0392296315001TTHND
2016-05-0392296315002TTHND
2016-05-0392296315003TTHND
2016-05-0392296315004TTHND
2016-08-0292307720004TTHND
2016-08-0292307720003TTHND
2016-08-0292307720002TTHND
2016-08-0292307720001TTHND
2016-11-0392318558001TTHND
2016-11-0392318558004TTHND
2016-11-0392318558003TTHND
2016-11-0392318558002TTHND
2017-02-0892329381001TTHND
2017-02-0892329381002TTHND
2017-02-0892329381003TTHND
2017-02-0892329381004TTHND
2017-05-0392339477004TTHND
2017-05-0392339477002TTHND
2017-05-0392339477001TTHND
2017-05-0392339477003TTHND
2017-08-0892350885001TTH2.20 ppb
2017-08-0892350885002TTHND
2017-08-0892350885003TTHND
2017-08-0892350885004TTHND
2017-11-1492363472001TTHND
2017-11-1492363472003TTHND
2017-11-1492363472002TTHND
2017-11-1492363472004TTHND
2018-02-0792372639004TTH ND
2018-02-0792372639003TTH ND
2018-02-0792372639002TTH ND
2018-02-0792372639001TTH ND
2018-05-0892384010004TTH ND
2018-05-0892384010001TTH ND
2018-05-0892384010002TTH ND
2018-05-0892384010003TTH ND
2018-08-1492395788004TTH ND
2018-08-1492395788003TTH 2.10 ppb
2018-08-1492395788002TTH ND
2018-08-1492395788001TTH ND
2018-11-0792406516001TTH ND
2018-11-0792406516002TTH ND
2018-11-0792406516003TTH ND
2018-11-0792406516004TTH ND
2019-02-1292417651001_3770ND
2019-02-1292417651002_3770ND
2019-02-1292417651003_3770ND
2019-02-1292417651004_3770ND
2019-05-0792428585001_3770ND
2019-05-0792428585004_3770ND
2019-05-0792428585003_3770ND
2019-05-0792428585002_3770ND
2019-08-0792440540002_3770ND
2019-08-0792440540004_3770ND
2019-08-0792440540003_3770ND
2019-08-0792440540001_3770ND
2019-11-0592452480004_3770ND
2019-11-0592452480003_3770ND
2019-11-0592452480002_3770ND
2019-11-0592452480001_3770ND