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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Berkeley County PSD/Opequon

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

 

102

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
2015ND170ND
2016ND160ND
20170.125 ppb161ND - 2.00 ppb
2018ND180ND
2019ND190ND

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
2014-02-19S2HAA_21405118ND
2014-02-19S2HAA_21405119ND
2014-02-19S2HAA_21405120ND
2014-02-19S2HAA_21405121ND
2014-05-06S2HAA_21412703ND
2014-05-06S2HAA_21412704ND
2014-05-06S2HAA_21412705ND
2014-05-06S2HAA_21412706ND
2014-08-06S2HAA_21421946ND
2014-08-06S2HAA_21421947ND
2014-08-06S2HAA_21421948ND
2014-08-06S2HAA_21421949ND
2014-11-19S2HAA_21432402ND
2014-11-19S2HAA_21432403ND
2014-11-19S2HAA_21432404ND
2014-11-19S2HAA_21432405ND
2015-02-04S2HAA_21503612ND
2015-02-04S2HAA_21503613ND
2015-02-04S2HAA_21503614ND
2015-02-04S2HAA_21503615ND
2015-02-04S2HAA_21503616ND
2015-05-13S2HAA_21513401ND
2015-05-13S2HAA_21513402ND
2015-05-13S2HAA_21513403ND
2015-05-13S2HAA_21513404ND
2015-08-19S2HAA_21523215ND
2015-08-19S2HAA_21523216ND
2015-08-19S2HAA_21523217ND
2015-08-19S2HAA_21523218ND
2015-11-2321532804ND
2015-11-2321532805ND
2015-11-2321532806ND
2015-11-2321532807ND
2016-02-2321605506ND
2016-02-2321605507ND
2016-02-2321605508ND
2016-02-2321605509ND
2016-05-1021613219ND
2016-05-1021613220ND
2016-05-1021613221ND
2016-05-1021613222ND
2016-08-15216229-06ND
2016-08-15216229-07ND
2016-08-15216229-08ND
2016-08-15216229-09ND
2016-11-07216313-06ND
2016-11-07216313-07ND
2016-11-07216313-08ND
2016-11-07216313-09ND
2017-02-14217046-02ND
2017-02-14217046-03ND
2017-02-14217046-04ND
2017-02-14217046-05ND
2017-05-18217139-02ND
2017-05-18217139-03ND
2017-05-18217139-04ND
2017-05-18217139-05ND
2017-08-09217222-02ND
2017-08-09217222-03ND
2017-08-09217222-04ND
2017-08-09217222-052.00 ppb
2017-11-27217332-02ND
2017-11-27217332-03ND
2017-11-27217332-04ND
2017-11-27217332-05ND
2018-02-14218046-19ND
2018-02-14218046-20ND
2018-02-14218046-21ND
2018-02-14218046-22ND
2018-05-24218145-19ND
2018-05-24218145-20ND
2018-05-24218145-21ND
2018-05-24218145-22ND
2018-05-24218145-23ND
2018-08-16218229-02ND
2018-08-16218229-03ND
2018-08-16218229-04ND
2018-08-16218229-05ND
2018-08-16218229-06ND
2018-11-27218332-02ND
2018-11-27218332-03ND
2018-11-27218332-04ND
2018-11-27218332-05ND
2019-02-25219057-02ND
2019-02-25219057-03ND
2019-02-25219057-04ND
2019-02-25219057-05ND
2019-05-16219137-02ND
2019-05-16219137-03ND
2019-05-16219137-04ND
2019-05-16219137-05ND
2019-05-16219137-06ND
2019-08-07219220-02ND
2019-08-07219220-04ND
2019-08-07219220-05ND
2019-08-07219220-06ND
2019-08-072192203ND
2019-11-21219326-02ND
2019-11-21219326-03ND
2019-11-21219326-04ND
2019-11-21219326-05ND
2019-11-21219326-06ND