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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Woodland-davis Clean Water Agency

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

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND60ND
2017ND120ND
2018ND120ND
2019ND110ND

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
2016-07-155810-002-1027ND
2016-08-195810-002-1315ND
2016-09-165810-002-1315ND
2016-10-145810-002-1200ND
2016-11-095810-002-1158ND
2016-12-145810-002-1112ND
2017-01-115810-002-1054ND
2017-02-085810-002-1046ND
2017-03-085810-002-1126ND
2017-04-125810-002-1045ND
2017-05-125810-002-1110ND
2017-06-155810-002-1117ND
2017-07-135810-002-1630ND
2017-08-145810-002-1045ND
2017-09-135810-002-1001ND
2017-10-135810-002-1201ND
2017-11-085810-002-1130ND
2017-12-135810-002-1032ND
2018-01-095810-002-1059ND
2018-02-145810-002-1112ND
2018-03-195810-002-1400ND
2018-04-115810-002-1034ND
2018-05-095810-002-1030ND
2018-06-135810-002-1124ND
2018-07-115810-002-1050ND
2018-08-085810-002-1121ND
2018-09-125810-002-1035ND
2018-10-105810-002-1115ND
2018-11-145810-002-1200ND
2018-12-125810-002-1040ND
2019-01-095810-002-1021ND
2019-02-135810-002-1220ND
2019-04-105810-002-1155ND
2019-05-085810-002-1111ND
2019-06-205810-002-0928ND
2019-07-105810-002-1130ND
2019-08-215810-002-1300ND
2019-09-095810-002-0940ND
2019-10-095810-002-1150ND
2019-11-065810-002-1024ND
2019-12-165810-002-0950ND