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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Raleigh

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

 

288

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
20141.26 ppb4826ND - 3.30 ppb
20150.329 ppb487ND - 2.40 ppb
20161.65 ppb4831ND - 4.60 ppb
20170.877 ppb4819ND - 3.60 ppb
2018ND480ND
20190.243 ppb485ND - 2.68 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
2014-02-2537604201403040332.70 ppb
2014-02-2537604201403040332.30 ppb
2014-02-2537604201403040332.40 ppb
2014-02-2537604201403040332.30 ppb
2014-02-2537604201403040331.70 ppb
2014-02-2537604201403040331.80 ppb
2014-02-2537604201403040331.60 ppb
2014-02-2537604201403040332.50 ppb
2014-02-2537604201403040332.40 ppb
2014-02-2537604201403040332.60 ppb
2014-02-2537604201403040332.60 ppb
2014-02-2537604201403040332.30 ppb
2014-05-0237604201405121002.40 ppb
2014-05-0237604201405121002.00 ppb
2014-05-0237604201405121001.70 ppb
2014-05-0237604201405121001.70 ppb
2014-05-0237604201405121002.20 ppb
2014-05-0237604201405121002.40 ppb
2014-05-0237604201405121003.10 ppb
2014-05-0237604201405121003.30 ppb
2014-05-0237604201405121003.20 ppb
2014-05-0237604201405121002.10 ppb
2014-05-0237604201405121002.40 ppb
2014-05-0237604201405121002.80 ppb
2014-08-073083706ND
2014-08-073083707ND
2014-08-073083708ND
2014-08-073083709ND
2014-08-073083710ND
2014-08-073083711ND
2014-08-073083712ND
2014-08-073083713ND
2014-08-073083714ND
2014-08-073083715ND
2014-08-073083716ND
2014-08-073083717ND
2014-11-063135629ND
2014-11-063135630ND
2014-11-063135631ND
2014-11-063135632ND
2014-11-063135633ND
2014-11-063135634ND
2014-11-063135635ND
2014-11-063135650ND
2014-11-063135651ND
2014-11-0631356522.10 ppb
2014-11-0631356532.00 ppb
2014-11-063135654ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-03-11ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-08-062.40 ppb
2015-08-062.20 ppb
2015-08-06ND
2015-08-062.30 ppb
2015-08-062.30 ppb
2015-08-062.20 ppb
2015-11-05ND
2015-11-052.30 ppb
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-052.10 ppb
2016-02-048048-020416-B01MND
2016-02-048048-020416-B02M3.10 ppb
2016-02-048048-020416-B03MND
2016-02-048048-020416-B04MND
2016-02-048048-020416-B05MND
2016-02-048048-020416-B06M2.50 ppb
2016-02-048048-020416-B07MND
2016-02-048048-020416-B08M2.80 ppb
2016-02-048048-020416-B09MND
2016-02-048048-020416-B10M2.80 ppb
2016-02-048048-020416-B11M3.20 ppb
2016-02-048048-020416-B12M2.90 ppb
2016-05-1237604201605050123.46 ppb
2016-05-1237604201605050124.60 ppb
2016-05-1237604201605050122.99 ppb
2016-05-1237604201605050123.10 ppb
2016-05-1237604201605050122.16 ppb
2016-05-1237604201605050122.05 ppb
2016-05-1237604201605050121.81 ppb
2016-05-1237604201605050121.76 ppb
2016-05-1237604201605050121.39 ppb
2016-05-1237604201605050121.41 ppb
2016-05-1237604201605050123.54 ppb
2016-05-1237604201605050121.22 ppb
2016-08-298048-082916-B01MND
2016-08-298048-082916-B02M3.10 ppb
2016-08-298048-082916-B03MND
2016-08-298048-082916-B04MND
2016-08-298048-082916-B05MND
2016-08-298048-082916-B06M2.50 ppb
2016-08-298048-082916-B07MND
2016-08-298048-082916-B08M2.80 ppb
2016-08-298048-082916-B09M2.00 ppb
2016-08-298048-082916-B10M2.60 ppb
2016-08-298048-082916-B11M3.00 ppb
2016-08-298048-082916-B12M2.60 ppb
2016-11-228048-112216-B01MND
2016-11-228048-112216-B02M2.20 ppb
2016-11-228048-112216-B03MND
2016-11-228048-112216-B04MND
2016-11-228048-112216-B05M2.00 ppb
2016-11-228048-112216-B06M2.10 ppb
2016-11-228048-112216-B07MND
2016-11-228048-112216-B08M2.00 ppb
2016-11-228048-112216-B09MND
2016-11-228048-112216-B10MND
2016-11-228048-112216-B11M2.90 ppb
2016-11-228048-112216-B12M2.50 ppb
2017-02-028048-020217-B01MND
2017-02-028048-020217-B02M2.50 ppb
2017-02-028048-020217-B03MND
2017-02-028048-020217-B04MND
2017-02-028048-020217-B05M2.10 ppb
2017-02-028048-020217-B06MND
2017-02-028048-020217-B07MND
2017-02-028048-020217-B08M2.80 ppb
2017-02-028048-020217-B09MND
2017-02-028048-020217-B10MND
2017-02-028048-020217-B11M2.40 ppb
2017-02-028048-020217-B12M2.10 ppb
2017-05-0537604201705040111.40 ppb
2017-05-053760420170504011ND
2017-05-0537604201705040111.60 ppb
2017-05-053760420170504011ND
2017-05-0537604201705040111.10 ppb
2017-05-053760420170504011ND
2017-05-0537604201705040111.40 ppb
2017-05-053760420170504011ND
2017-05-053760420170504011ND
2017-05-0537604201705040111.50 ppb
2017-05-053760420170504011ND
2017-05-0537604201705040111.20 ppb
2017-08-248048-082417-B01MND
2017-08-248048-082417-B02M3.20 ppb
2017-08-248048-082417-B03MND
2017-08-248048-082417-B04MND
2017-08-248048-082417-B05MND
2017-08-248048-082417-B06M3.10 ppb
2017-08-248048-082417-B07MND
2017-08-248048-082417-B08M3.60 ppb
2017-08-248048-082417-B09M2.20 ppb
2017-08-248048-082417-B10M2.60 ppb
2017-08-248048-082417-B11M2.20 ppb
2017-08-248048-082417-B12M3.10 ppb
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-023760420171102013ND
2017-11-0237604201711020132.00 ppb
2017-11-023760420171102013ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-02-013760420180201020ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-05-033760420180503013ND
2018-08-278048-082718-B01MND
2018-08-278048-082718-B02MND
2018-08-278048-082718-B03MND
2018-08-278048-082718-B04MND
2018-08-278048-082718-B05MND
2018-08-278048-082718-B06MND
2018-08-278048-082718-B07MND
2018-08-278048-082718-B08MND
2018-08-278048-082718-B09MND
2018-08-278048-082718-B10MND
2018-08-278048-082718-B11MND
2018-08-278048-082718-B12MND
2018-11-198048-111918-B01MND
2018-11-198048-111918-B02MND
2018-11-198048-111918-B03MND
2018-11-198048-111918-B04MND
2018-11-198048-111918-B05MND
2018-11-198048-111918-B06MND
2018-11-198048-111918-B07MND
2018-11-198048-111918-B08MND
2018-11-198048-111918-B09MND
2018-11-198048-111918-B10MND
2018-11-198048-111918-B11MND
2018-11-198048-111918-B12MND
2019-02-198048-021919-B01MND
2019-02-198048-021919-B02MND
2019-02-198048-021919-B03MND
2019-02-198048-021919-B04MND
2019-02-198048-021919-B05MND
2019-02-198048-021919-B06MND
2019-02-198048-021919-B07MND
2019-02-198048-021919-B08MND
2019-02-198048-021919-B09MND
2019-02-198048-021919-B10MND
2019-02-198048-021919-B11MND
2019-02-198048-021919-B12MND
2019-05-0237604201905020132.68 ppb
2019-05-0237604201905020132.22 ppb
2019-05-023760420190502013ND
2019-05-0237604201905020132.17 ppb
2019-05-023760420190502013ND
2019-05-023760420190502013ND
2019-05-0237604201905020132.19 ppb
2019-05-023760420190502013ND
2019-05-023760420190502013ND
2019-05-023760420190502013ND
2019-05-0237604201905020132.39 ppb
2019-05-023760420190502013ND
2019-08-012019080101507A ND
2019-08-012019080101513A ND
2019-08-012019080101514A ND
2019-08-012019080101515C ND
2019-08-012019080101516A ND
2019-08-012019080101517A ND
2019-08-012019080101518A ND
2019-08-012019080101520C ND
2019-08-012019080101521A ND
2019-08-012019080101522C ND
2019-08-012019080101523A ND
2019-08-012019080101524A ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND
2019-11-073760420191107013ND