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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Bcwsa Sangaree WD

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

 

96

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
2015ND160ND
20160.353 ppb161ND - 5.65 ppb
2017ND160ND
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
2014-01-272140128-13ND
2014-01-272140128-14ND
2014-01-272140128-15ND
2014-01-272140128-12ND
2014-04-232140424-18ND
2014-04-232140424-19ND
2014-04-232140424-20ND
2014-04-232140424-21ND
2014-07-242140725-5ND
2014-07-242140725-6ND
2014-07-242140725-7ND
2014-07-242140725-8ND
2014-10-292141030-21ND
2014-10-292141030-23ND
2014-10-292141030-22ND
2014-10-292141030-20ND
2015-01-272150128-46ND
2015-01-272150128-47ND
2015-01-272150128-48ND
2015-01-272150128-49ND
2015-04-232150424-2ND
2015-04-232150424-3ND
2015-04-232150424-4ND
2015-04-232150424-5ND
2015-07-312150731-19ND
2015-07-312150731-21ND
2015-07-312150731-20ND
2015-07-312150731-18ND
2015-10-292151030-11ND
2015-10-292151030-8ND
2015-10-292151030-9ND
2015-10-292151030-10ND
2016-01-262160127-41ND
2016-01-262160127-40ND
2016-01-262160127-39ND
2016-01-262160127-38ND
2016-04-272160429-03ND
2016-04-272160429-02ND
2016-04-272160429-04ND
2016-04-272160429-05ND
2016-08-012160802-02ND
2016-08-012160802-03ND
2016-08-012160802-04ND
2016-08-012160802-05ND
2016-10-282161101-30HND
2016-10-282161101-31ND
2016-10-282161101-325.65 ppb
2016-10-282161101-33ND
2017-01-262170127-09ND
2017-01-262170127-06ND
2017-01-262170127-07ND
2017-01-262170127-08ND
2017-04-252170428-14ND
2017-04-252170428-15ND
2017-04-252170428-16ND
2017-04-252170428-17ND
2017-07-262170728-38ND
2017-07-262170728-37ND
2017-07-262170728-36ND
2017-07-262170728-35ND
2017-10-252171027-11ND
2017-10-252171027-12ND
2017-10-252171027-13ND
2017-10-252171027-14ND
2018-01-222180124-48ND
2018-01-222180124-47ND
2018-01-222180124-46ND
2018-01-222180124-45ND
2018-04-262180501-15ND
2018-04-262180501-12ND
2018-04-262180501-13ND
2018-04-262180501-14ND
2018-07-242180727-15ND
2018-07-242180727-14ND
2018-07-242180727-13ND
2018-07-242180727-12ND
2018-10-232181025-18ND
2018-10-232181025-19ND
2018-10-232181025-20ND
2018-10-232181025-21ND
2019-01-302190131-22ND
2019-01-302190131-23ND
2019-01-302190131-24ND
2019-01-302190131-25ND
2019-04-232190424-22ND
2019-04-232190424-25ND
2019-04-232190424-24ND
2019-04-232190424-23ND
2019-07-232190725-07ND
2019-07-232190725-09ND
2019-07-232190725-08ND
2019-07-232190725-06ND
2019-10-222191023-51ND
2019-10-222191023-50ND
2019-10-222191023-49ND
2019-10-222191023-48ND