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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

West View Water Authority

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

 

160

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
2015ND320ND
20160.0625 ppb321ND - 2.00 ppb
2017ND240ND
2018ND80ND
20190.922 ppb3216ND - 4.42 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
2014-02-062968849ND
2014-02-062968845ND
2014-02-062968847ND
2014-02-062968851ND
2014-02-062968846ND
2014-02-062968850ND
2014-02-062968844ND
2014-02-062968848ND
2014-05-123023853ND
2014-05-123023849ND
2014-05-123023851ND
2014-05-123023855ND
2014-05-123023850ND
2014-05-123023854ND
2014-05-123023848ND
2014-05-123023852ND
2014-08-063076650ND
2014-08-063076646ND
2014-08-063076648ND
2014-08-063076652ND
2014-08-063076647ND
2014-08-063076651ND
2014-08-063076645ND
2014-08-063076649ND
2014-11-103136270ND
2014-11-103136266ND
2014-11-103136268ND
2014-11-103136272ND
2014-11-103136267ND
2014-11-103136271ND
2014-11-103136265ND
2014-11-103136269ND
2015-02-0512692142ND
2015-02-0512458542ND
2015-02-0512458553ND
2015-02-0512458586ND
2015-02-0512692131ND
2015-02-0512458575ND
2015-02-0512458531ND
2015-02-0512458564ND
2015-05-1213198331ND
2015-05-1213075320ND
2015-05-1213075331ND
2015-05-1213075364ND
2015-05-1213198320ND
2015-05-1213075353ND
2015-05-1213075309ND
2015-05-1213075342ND
2015-08-0613451090ND
2015-08-0613451046ND
2015-08-0613451068ND
2015-08-0613451112ND
2015-08-0613451057ND
2015-08-0613451101ND
2015-08-0613451035ND
2015-08-0613451079ND
2015-11-1013573613ND
2015-11-1013573569ND
2015-11-1013573591ND
2015-11-1013573635ND
2015-11-1013573580ND
2015-11-1013573624ND
2015-11-1013573558ND
2015-11-1013573602ND
2016-02-0313928032ND
2016-02-0313927988ND
2016-02-0313928010ND
2016-02-0313928054ND
2016-02-0313927999ND
2016-02-0313928043ND
2016-02-0313927977ND
2016-02-0313928021ND
2016-05-1014329399ND
2016-05-1014329355ND
2016-05-1014329377ND
2016-05-1014329421ND
2016-05-10143293662.00 ppb
2016-05-1014329410ND
2016-05-1014329344ND
2016-05-1014329388ND
2016-08-1114822761ND
2016-08-1114822717ND
2016-08-1114822739ND
2016-08-1114822783ND
2016-08-1114822728ND
2016-08-1114822772ND
2016-08-1114822706ND
2016-08-1114822750ND
2016-11-0715297951ND
2016-11-0715297907ND
2016-11-0715297929ND
2016-11-0715297973ND
2016-11-0715297918ND
2016-11-0715297962ND
2016-11-0715297896ND
2016-11-0715297940ND
2017-02-0615724274ND
2017-02-0615724241ND
2017-02-0615724263ND
2017-02-0615724296ND
2017-02-0615724252ND
2017-02-0615724285ND
2017-02-0615724230ND
2017-02-0615724307ND
2017-05-1016176672ND
2017-05-1016176628ND
2017-05-1016176650ND
2017-05-1016176694ND
2017-05-1016176639ND
2017-05-1016176683ND
2017-05-1016176617ND
2017-05-1016176661ND
2017-08-0816646543ND
2017-08-0816646510ND
2017-08-0816646532ND
2017-08-0816646565ND
2017-08-0816646521ND
2017-08-0816646554ND
2017-08-0816646499ND
2017-08-0816646576ND
2018-11-078110753-01ND
2018-11-078110753-02ND
2018-11-078110753-03ND
2018-11-078110753-04ND
2018-11-078110753-05ND
2018-11-078110753-06ND
2018-11-078110753-07ND
2018-11-078110753-08ND
2019-02-069020578-01ND
2019-02-069020578-02ND
2019-02-069020578-03ND
2019-02-069020578-04ND
2019-02-069020578-05ND
2019-02-069020578-06ND
2019-02-069020578-07ND
2019-02-069020578-08ND
2019-05-109051069-01ND
2019-05-109051069-02ND
2019-05-109051069-031.02 ppb
2019-05-109051069-04ND
2019-05-109051069-053.03 ppb
2019-05-109051069-061.06 ppb
2019-05-109051069-071.71 ppb
2019-05-109051069-081.44 ppb
2019-08-089080898-011.52 ppb
2019-08-089080898-02ND
2019-08-089080898-034.42 ppb
2019-08-089080898-041.42 ppb
2019-08-089080898-051.81 ppb
2019-08-089080898-061.66 ppb
2019-08-089080903-01ND
2019-08-089080903-02ND
2019-11-079110755-011.13 ppb
2019-11-079110755-021.95 ppb
2019-11-079110755-031.88 ppb
2019-11-079110755-041.85 ppb
2019-11-079110755-05ND
2019-11-079110755-061.58 ppb
2019-11-079110755-072.02 ppb
2019-11-079110755-08ND