Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

Cary

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
2015ND320ND
2016ND320ND
2017ND320ND
2018ND320ND
2019ND320ND

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
2014-02-11C401194-06RE2ND
2014-02-11C401194-07RE2ND
2014-02-11C401194-08RE2ND
2014-02-11C401194-01RE2ND
2014-02-11C401194-02RE2ND
2014-02-11C401194-03ND
2014-02-11C401194-04ND
2014-02-11C401194-05ND
2014-05-14C405687-01RE1ND
2014-05-14C405687-02RE1ND
2014-05-14C405687-03ND
2014-05-14C405687-04RE2ND
2014-05-14C405687-05ND
2014-05-14C405687-06RE1ND
2014-05-14C405687-07RE2ND
2014-05-14C405687-08RE2ND
2014-08-13C409021-01RE1ND
2014-08-13C409021-02RE2ND
2014-08-13C409021-03RE1ND
2014-08-13C409021-04RE1ND
2014-08-13C409021-05RE1ND
2014-08-13C409021-06RE2ND
2014-08-13C409021-07RE2ND
2014-08-13C409021-08RE2ND
2014-11-12C412850-01RE1ND
2014-11-12C412850-02RE1ND
2014-11-12C412850-03RE1ND
2014-11-12C412850-04RE1ND
2014-11-12C412850-05ND
2014-11-12C412850-06RE1ND
2014-11-12C412850-07RE1ND
2014-11-12C412850-08ND
2015-02-12ND
2015-02-12ND
2015-02-12ND
2015-02-12ND
2015-02-12ND
2015-02-12ND
2015-02-12ND
2015-02-12ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-08-12ND
2015-08-12ND
2015-08-12ND
2015-08-12ND
2015-08-12ND
2015-08-12ND
2015-08-12ND
2015-08-12ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2015-11-09ND
2016-02-09CZ00075-01ND
2016-02-09CZ00075-02ND
2016-02-09CZ00075-03ND
2016-02-09CZ00075-04ND
2016-02-09CZ00075-05ND
2016-02-09CZ00075-06ND
2016-02-09CZ00075-07RE1ND
2016-02-09CZ00075-08ND
2016-05-1037729_16-14953ND
2016-05-1037729_16-14954ND
2016-05-1037729_16-14955ND
2016-05-1037729_16-14956ND
2016-05-1037729_16-14957ND
2016-05-1037729_16-14958ND
2016-05-1037729_16-14959ND
2016-05-1037729_16-14960ND
2016-08-09CZ10257-01ND
2016-08-09CZ10257-02ND
2016-08-09CZ10257-03RE1ND
2016-08-09CZ10257-04RE1ND
2016-08-09CZ10257-05RE1ND
2016-08-09CZ10257-06ND
2016-08-09CZ10257-07RE1ND
2016-08-09CZ10257-08RE1ND
2016-11-08CZ15257-01ND
2016-11-08CZ15257-02ND
2016-11-08CZ15257-03ND
2016-11-08CZ15257-04ND
2016-11-08CZ15257-05ND
2016-11-08CZ15257-06ND
2016-11-08CZ15257-07ND
2016-11-08CZ15257-08ND
2017-02-08CA00188-01ND
2017-02-08CA00188-02ND
2017-02-08CA00188-03ND
2017-02-08CA00188-04ND
2017-02-08CA00188-05ND
2017-02-08CA00188-06ND
2017-02-08CA00188-07ND
2017-02-08CA00188-08ND
2017-05-09CA04754-01ND
2017-05-09CA04754-02ND
2017-05-09CA04754-03ND
2017-05-09CA04754-04ND
2017-05-09CA04754-05ND
2017-05-09CA04754-06ND
2017-05-09CA04754-07ND
2017-05-09CA04754-08ND
2017-08-08CA09930-01ND
2017-08-08CA09930-02ND
2017-08-08CA09930-03ND
2017-08-08CA09930-04ND
2017-08-08CA09930-05ND
2017-08-08CA09930-06ND
2017-08-08CA09930-07ND
2017-08-08CA09930-08ND
2017-11-07CA15883-01ND
2017-11-07CA15883-02ND
2017-11-07CA15883-03ND
2017-11-07CA15883-04ND
2017-11-07CA15883-05ND
2017-11-07CA15883-06ND
2017-11-07CA15883-07ND
2017-11-07CA15883-08ND
2018-02-06CB00145-01 ND
2018-02-06CB00145-02 ND
2018-02-06CB00145-03 ND
2018-02-06CB00145-04 ND
2018-02-06CB00145-05 ND
2018-02-06CB00145-06 ND
2018-02-06CB00145-07 ND
2018-02-06CB00145-08 ND
2018-05-08CB04657-01 ND
2018-05-08CB04657-02 ND
2018-05-08CB04657-03 ND
2018-05-08CB04657-04 ND
2018-05-08CB04657-05 ND
2018-05-08CB04657-06 ND
2018-05-08CB04657-07 ND
2018-05-08CB04657-08 ND
2018-08-16CB09807-01 ND
2018-08-16CB09807-02 ND
2018-08-16CB09807-03 ND
2018-08-16CB09807-04 ND
2018-08-16CB09807-05 ND
2018-08-16CB09807-06 ND
2018-08-16CB09807-07 ND
2018-08-16CB09807-08 ND
2018-11-13CB15225-01 ND
2018-11-13CB15225-02 ND
2018-11-13CB15225-03 ND
2018-11-13CB15225-05 ND
2018-11-13CB15225-06 ND
2018-11-13CB15225-07 ND
2018-11-13CB15225-08 ND
2018-11-14CB17515-01 ND
2019-02-12CC00060-01 ND
2019-02-12CC00060-02 ND
2019-02-12CC00060-03 ND
2019-02-12CC00060-04 ND
2019-02-12CC00060-05 ND
2019-02-12CC00060-06 ND
2019-02-12CC00060-07 ND
2019-02-12CC00060-08 ND
2019-05-14CC05465-01 ND
2019-05-14CC05465-02 ND
2019-05-14CC05465-03 ND
2019-05-14CC05465-04 ND
2019-05-14CC05465-05 ND
2019-05-14CC05465-06 ND
2019-05-14CC05465-07 ND
2019-05-14CC05465-08 ND
2019-08-13CC11375-01 ND
2019-08-13CC11375-02 ND
2019-08-13CC11375-03 ND
2019-08-13CC11375-04 ND
2019-08-13CC11375-05 ND
2019-08-13CC11375-06 ND
2019-08-13CC11375-07 ND
2019-08-13CC11375-08 ND
2019-11-12CC16863-01 ND
2019-11-12CC16863-02 ND
2019-11-12CC16863-03 ND
2019-11-12CC16863-04 ND
2019-11-12CC16863-05 ND
2019-11-12CC16863-06 ND
2019-11-12CC16863-07 ND
2019-11-12CC16863-08 ND