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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Elk Creek Community Services District

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

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND30ND
2017ND80ND
2018ND80ND
20190.250 ppb81ND - 2.00 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
2014-11-255867-003-1000ND
2015-08-265867-900-1100ND
2016-06-165867-900-1130ND
2016-06-165867-901-1200ND
2016-11-045867-900-1150ND
2017-02-015867-901-1230ND
2017-02-015867-900-1205ND
2017-05-045867-901-0700ND
2017-05-045867-900-0730ND
2017-08-155867-901-1025ND
2017-08-155867-900-1015ND
2017-11-015867-901-1245ND
2017-11-015867-900-1215ND
2018-02-085867-901-0950ND
2018-02-085867-900-0930ND
2018-05-145867-900-0900ND
2018-05-145867-901-1000ND
2018-08-105867-900-1315ND
2018-08-105867-901-1245ND
2018-11-075867-900-1030ND
2018-11-075867-901-1100ND
2019-02-015867-901-0810ND
2019-02-015867-900-0810ND
2019-05-095867-900-12002.00 ppb
2019-05-095867-901-1230ND
2019-08-065867-901-0900ND
2019-09-165867-900-1100ND
2019-11-055867-900-1230ND
2019-11-055867-901-1250ND