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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Beacon City

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

 

76

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
2015ND80ND
20160.963 ppb1610ND - 2.40 ppb
2017ND40ND
2018ND160ND
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
2014-01-14420-74020-2ND
2014-01-14420-74020-4ND
2014-01-14420-74020-1ND
2014-01-14420-74020-3ND
2014-04-08420-76538-4ND
2014-04-08420-76538-3ND
2014-04-08420-76538-1ND
2014-04-08420-76538-2ND
2014-07-22420-80202-2AND
2014-07-22420-80202-1ND
2014-07-22420-80202-3ND
2014-07-22420-80202-4ND
2014-10-14420-83395-4ND
2014-10-14420-83395-1ND
2014-10-14420-83395-3ND
2014-10-14420-83395-2ND
2015-01-2001201504ND
2015-01-2001201504CND
2015-01-2001201504AND
2015-01-2001201504END
2015-04-14420-89226-2ND
2015-04-14420-89226-3ND
2015-04-14420-89226-4ND
2015-04-14420-89226-1ND
2016-01-20BC1693ND
2016-01-20BC16961.30 ppb
2016-01-20BC16941.80 ppb
2016-01-20BC16951.80 ppb
2016-04-27CB168671.10 ppb
2016-04-27CB168651.80 ppb
2016-04-27CB16866ND
2016-04-27CB16864ND
2016-07-21CB161656ND
2016-07-21CB1616572.40 ppb
2016-07-21CB1616581.20 ppb
2016-07-21CB1616551.10 ppb
2016-10-25BW163904ND
2016-10-25BW0639071.70 ppb
2016-10-25BW163905ND
2016-10-25BW1639061.20 ppb
2017-10-24BE172724ND
2017-10-24BE172726ND
2017-10-24BE172725ND
2017-10-24BE172723ND
2018-01-16BC180143ND
2018-01-16BC180144ND
2018-01-16BC180145ND
2018-01-16BC180146ND
2018-04-11CB180724ND
2018-04-11CB180726ND
2018-04-11CB180725ND
2018-04-11CB180723ND
2018-07-12CB181423ND
2018-07-12CB181424ND
2018-07-12CB181421ND
2018-07-12CB181422ND
2018-10-11CB182428ND
2018-10-11CB182430ND
2018-10-11CB182431ND
2018-10-11CB182429ND
2019-01-08CC26745ND
2019-01-08CC26744ND
2019-01-08CC26747ND
2019-01-08CC26746ND
2019-04-10CB190925ND
2019-04-10CB190924ND
2019-04-10CB190922ND
2019-04-10CB190923ND
2019-07-09CD55878ND
2019-07-09CD55877ND
2019-07-09CD55879ND
2019-07-09CD55876ND
2019-10-08CE30665ND
2019-10-08CE30666ND
2019-10-08CE30668ND
2019-10-08CE30667ND