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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Town of Apex

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

 

139

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
20151.53 ppb164ND - 9.40 ppb
2016ND160ND
20170.205 ppb202ND - 2.10 ppb
20180.0656 ppb321ND - 2.10 ppb
20190.777 ppb3912ND - 5.20 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
2014-02-1192189539001-2ND
2014-02-1192189539003-2ND
2014-02-1192189539004-2ND
2014-02-1192189539005-2ND
2014-05-1492201240001DIS-2ND
2014-05-1492201240002DIS-2ND
2014-05-1492201240003DIS-2ND
2014-05-1492201240004DIS-2ND
2014-08-1492213447001TTH-2ND
2014-08-1492213447002TTH-2ND
2014-08-1492213447003TTH-2ND
2014-08-1492213447004TTH-2ND
2014-11-1292225241001TTH-2ND
2014-11-1292225241002TTH-2ND
2014-11-1292225241003TTH-2ND
2014-11-1292225241004TTH-2ND
2015-02-11ND
2015-02-11ND
2015-02-11ND
2015-02-11ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-08-14ND
2015-08-14ND
2015-08-14ND
2015-08-14ND
2015-11-125.00 ppb
2015-11-129.40 ppb
2015-11-125.70 ppb
2015-11-124.30 ppb
2016-02-1292286426001TTH-2ND
2016-02-1292286426003TTH-2ND
2016-02-1292286426004TTH-2ND
2016-02-1292286426005TTH-2ND
2016-05-1192297108001TTH-2ND
2016-05-1192297108003TTH-2ND
2016-05-1192297108004TTH-2ND
2016-05-1192297108005TTH-2ND
2016-08-1792309277001TTH-2ND
2016-08-1792309277002TTH-2ND
2016-08-1792309277003TTH-2ND
2016-08-1792309277004TTH-2ND
2016-11-1692319879001TTH-2ND
2016-11-1692319879002TTH-2ND
2016-11-1692319879004TTH-2ND
2016-11-1692319879005TTH-2ND
2017-02-1592329986001TTHND
2017-02-1592329986002TTHND
2017-02-1592329986004TTHND
2017-02-1592329986005TTHND
2017-05-1292340418001TTHND
2017-05-1292340418002TTH2.00 ppb
2017-05-1292340418004TTHND
2017-05-1292340418005TTH2.10 ppb
2017-08-1692351687001TTHND
2017-08-1692351687002TTHND
2017-08-1692351687003TTHND
2017-08-1692351687005TTHND
2017-11-1492363203001TTHND
2017-11-1492363203002TTHND
2017-11-1492363203003TTHND
2017-11-1492363203004TTHND
2017-11-1492363203005TTHND
2017-11-1492363203006TTHND
2017-11-1492363203007TTHND
2017-11-1492363203008TTHND
2018-02-1492373327001TTH ND
2018-02-1492373327002TTH ND
2018-02-1492373327003TTH ND
2018-02-1492373327004TTH ND
2018-02-1492373327005TTH ND
2018-02-1492373327006TTH ND
2018-02-1492373327007TTH ND
2018-02-1492373327008TTH ND
2018-05-1692384990001TTH ND
2018-05-1692384990002TTH 2.10 ppb
2018-05-1692384990003TTH ND
2018-05-1692384990004TTH ND
2018-05-1692384990005TTH ND
2018-05-1692384990006TTH ND
2018-05-1692384990007TTH ND
2018-05-1692384990008TTH ND
2018-08-1492395647001TTH ND
2018-08-1492395647002TTH ND
2018-08-1492395647003TTH ND
2018-08-1492395647004TTH ND
2018-08-1492395647005TTH ND
2018-08-1492395647006TTH ND
2018-08-1492395647007TTH ND
2018-08-1492395647008TTH ND
2018-11-1692407681001TTH ND
2018-11-1692407681002TTH ND
2018-11-1692407681003TTH ND
2018-11-1692407681004TTH ND
2018-11-1692407681005TTH ND
2018-11-1692407681006TTH ND
2018-11-1692407681007TTH ND
2018-11-1692407681008TTH ND
2019-02-1492417771001_3770ND
2019-02-1492417771001_3770ND
2019-02-1492417771002_3770ND
2019-02-1492417771002_3770ND
2019-02-1492417771004_3770ND
2019-02-1492417771004_3770ND
2019-02-1492417771005_37702.10 ppb
2019-02-1492417771005_37702.10 ppb
2019-02-1492417771006_37702.10 ppb
2019-02-1492417771006_37702.10 ppb
2019-02-1492417771007_37702.10 ppb
2019-02-1492417771007_37702.10 ppb
2019-02-1492417771008_3770ND
2019-02-1492417771009_3770ND
2019-02-1492417771009_3770ND
2019-05-1592429303001_37702.70 ppb
2019-05-1592429303002_3770ND
2019-05-1592429303003_37702.20 ppb
2019-05-1592429303004_37702.00 ppb
2019-05-1592429303005_37702.60 ppb
2019-05-1592429303006_3770ND
2019-05-1592429303007_37703.00 ppb
2019-05-3192431170001_3770ND
2019-09-2592446996002_3770ND
2019-09-2592446996003_37705.20 ppb
2019-09-2592446996004_3770ND
2019-09-2592446996005_3770ND
2019-09-2592446996006_3770ND
2019-09-2592446996007_3770ND
2019-09-2592446996008_3770ND
2019-09-2592446996009_3770ND
2019-11-1392453473001_3770ND
2019-11-1392453473002_3770ND
2019-11-1392453473003_3770ND
2019-11-1392453473004_3770ND
2019-11-1392453473005_3770ND
2019-11-1392453473006_3770ND
2019-11-1392453473007_3770ND
2019-11-1392453473008_3770ND