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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Hilton Head PSD 1

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
20151.10 ppb161ND - 17.7 ppb
2016ND160ND
2017ND160ND
20180.130 ppb161ND - 2.07 ppb
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
2014-01-142140115-23ND
2014-01-142140115-24ND
2014-01-142140115-25ND
2014-01-142140115-22ND
2014-04-072140408-24ND
2014-04-072140408-25ND
2014-04-072140408-26ND
2014-04-072140408-27ND
2014-07-082140709-12ND
2014-07-082140709-13ND
2014-07-082140709-14ND
2014-07-082140709-15ND
2014-10-152141016-13ND
2014-10-152141016-15ND
2014-10-152141016-14ND
2014-10-152141016-12ND
2015-01-122150113-28ND
2015-01-122150113-29ND
2015-01-122150113-30ND
2015-01-122150113-31ND
2015-04-072150408-4017.7 ppb
2015-04-072150408-41ND
2015-04-072150408-42ND
2015-04-072150408-43ND
2015-07-132150714-11ND
2015-07-132150714-13ND
2015-07-132150714-12ND
2015-07-132150714-10ND
2015-10-142151015-3ND
2015-10-142151015-4ND
2015-10-142151015-5ND
2015-10-142151015-2ND
2016-01-142160115-05ND
2016-01-142160115-04ND
2016-01-142160115-03ND
2016-01-142160115-02ND
2016-04-122160413-25ND
2016-04-122160413-24ND
2016-04-122160413-26ND
2016-04-122160413-27ND
2016-07-122160713-14ND
2016-07-122160713-15ND
2016-07-122160713-16ND
2016-07-122160713-17ND
2016-12-062161208-02ND
2016-12-062161208-03ND
2016-12-062161208-04ND
2016-12-062161208-05ND
2017-01-112170112-15ND
2017-01-112170112-12ND
2017-01-112170112-13ND
2017-01-112170112-14ND
2017-04-112170412-02ND
2017-04-112170412-03ND
2017-04-112170412-04ND
2017-04-112170412-05ND
2017-07-132170714-84ND
2017-07-132170714-83ND
2017-07-132170714-82ND
2017-07-132170714-81BND
2017-10-102171011-20ND
2017-10-102171011-21ND
2017-10-102171011-22ND
2017-10-102171011-23ND
2018-01-102180112-85ND
2018-01-102180112-84ND
2018-01-102180112-83ND
2018-01-102180112-82ND
2018-04-112180412-37ND
2018-04-112180412-34ND
2018-04-112180412-35ND
2018-04-112180412-36ND
2018-07-122180717-05ND
2018-07-122180717-042.07 ppb
2018-07-122180717-03ND
2018-08-202180821-06ND
2018-12-172181219-02ND
2018-12-172181219-04ND
2018-12-172181219-05ND
2018-12-182181219-03ND
2019-01-142190115-02ND
2019-01-142190115-03ND
2019-01-142190115-04ND
2019-01-142190115-05ND
2019-04-112190412-44ND
2019-04-112190412-47ND
2019-04-112190412-46ND
2019-04-112190412-45ND
2019-07-092190710-03ND
2019-07-092190710-05ND
2019-07-092190710-04ND
2019-07-092190710-02ND
2019-10-072191008-05ND
2019-10-072191008-04ND
2019-10-072191008-03ND
2019-10-072191008-02ND