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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Richland

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

 

168

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND240ND
2016ND320ND
2017ND320ND
20180.316 ppb3211ND - 1.59 ppb
2019ND320ND

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
2014-03-1195537ND
2014-03-1195539ND
2014-03-1195541ND
2014-03-1195535ND
2014-06-1098766ND
2014-06-1098772ND
2014-06-1098770ND
2014-06-1098768ND
2014-09-0952018ND
2014-09-0952012ND
2014-09-0952014ND
2014-09-0952016ND
2014-12-0955577ND
2014-12-0955579ND
2014-12-0955584ND
2014-12-0955582ND
2015-03-0357786ND
2015-03-0357784ND
2015-03-0357788ND
2015-03-0357790ND
2015-06-1061148ND
2015-06-1061146ND
2015-06-1061144ND
2015-06-1061142ND
2015-09-0965400ND
2015-09-0965399ND
2015-09-0965398ND
2015-09-0965397ND
2015-09-0965396ND
2015-09-0965395ND
2015-09-0965394ND
2015-09-0965393ND
2015-12-0968783ND
2015-12-0968782ND
2015-12-0968781ND
2015-12-0968780ND
2015-12-0968779ND
2015-12-0968778ND
2015-12-0968777ND
2015-12-0968776ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-06-07ND
2016-06-07ND
2016-06-07ND
2016-06-07ND
2016-06-07ND
2016-06-07ND
2016-06-07ND
2016-06-07ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-12-06ND
2016-12-06ND
2016-12-06ND
2016-12-06ND
2016-12-06ND
2016-12-06ND
2016-12-06ND
2016-12-06ND
2017-03-23ND
2017-03-23ND
2017-03-23ND
2017-03-23ND
2017-03-23ND
2017-03-23ND
2017-03-23ND
2017-03-23ND
2017-06-13ND
2017-06-13ND
2017-06-13ND
2017-06-13ND
2017-06-13ND
2017-06-13ND
2017-06-13ND
2017-06-13ND
2017-09-12ND
2017-09-12ND
2017-09-12ND
2017-09-12ND
2017-09-12ND
2017-09-12ND
2017-09-12ND
2017-09-12ND
2017-12-12ND
2017-12-12ND
2017-12-12ND
2017-12-12ND
2017-12-12ND
2017-12-12ND
2017-12-12ND
2017-12-12ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-06-12ND
2018-06-12ND
2018-06-12ND
2018-06-12ND
2018-06-12ND
2018-06-12ND
2018-06-12ND
2018-06-12ND
2018-09-110.380 ppb
2018-09-11ND
2018-09-110.760 ppb
2018-09-110.560 ppb
2018-09-11ND
2018-09-11ND
2018-09-11ND
2018-09-11ND
2018-12-110.780 ppb
2018-12-110.980 ppb
2018-12-110.900 ppb
2018-12-110.810 ppb
2018-12-111.59 ppb
2018-12-110.960 ppb
2018-12-111.13 ppb
2018-12-111.26 ppb
2019-03-12ND
2019-03-12ND
2019-03-12ND
2019-03-12ND
2019-03-12ND
2019-03-12ND
2019-03-12ND
2019-03-12ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-12-10ND
2019-12-10ND
2019-12-10ND
2019-12-10ND
2019-12-10ND
2019-12-10ND
2019-12-10ND
2019-12-10ND