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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Shorelands Water Company Inc.

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20149.97 ppb1615ND - 19.5 ppb
20150.660 ppb169ND - 1.88 ppb
20164.47 ppb1610ND - 10.7 ppb
20171.27 ppb168ND - 4.01 ppb
20181.02 ppb179ND - 3.54 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
2014-02-25HA030614-095.33 ppb
2014-02-25HA030614-086.48 ppb
2014-02-25HA030614-067.31 ppb
2014-02-25HA030614-077.92 ppb
2014-05-27HA060414-0715.2 ppb
2014-05-27HA060414-089.46 ppb
2014-05-27HA060414-0616.5 ppb
2014-05-27HA060414-09ND
2014-08-26HA090414-195.02 ppb
2014-08-26HA090414-201.19 ppb
2014-08-26HA090414-2110.4 ppb
2014-08-26HA090414-1811.7 ppb
2014-11-24HA120114-1911.8 ppb
2014-11-24HA120114-2119.5 ppb
2014-11-24HA120114-1813.5 ppb
2014-11-24HA120114-2018.2 ppb
2015-02-24HA030415-070.440 ppb
2015-02-24HA030415-06ND
2015-02-24HA030415-10ND
2015-02-24HA030415-091.47 ppb
2015-05-26HA052915-180.720 ppb
2015-05-26HA052915-171.11 ppb
2015-05-26HA052915-201.30 ppb
2015-05-26HA052915-190.950 ppb
2015-08-25HA09012015-18ND
2015-08-25HA09012015-19ND
2015-08-25HA09012015-161.73 ppb
2015-08-25HA09012015-17ND
2015-11-23HA113015-250.960 ppb
2015-11-23HA113015-261.88 ppb
2015-11-23HA113015-28ND
2015-11-23HA113015-29ND
2016-02-23HA030116-179.38 ppb
2016-02-23HA030116-158.07 ppb
2016-02-23HA030116-145.63 ppb
2016-02-23HA030116-166.75 ppb
2016-05-24HA060316-208.92 ppb
2016-05-24HA060316-2110.1 ppb
2016-05-24HA060316-228.59 ppb
2016-05-24HA060316-2310.7 ppb
2016-08-23HA090116A-201.64 ppb
2016-08-23HA090116A-19ND
2016-08-23HA090116A-18ND
2016-08-23HA090116A-17ND
2016-11-21HA120616-17ND
2016-11-21HA120616-16ND
2016-11-21HA120616-191.78 ppb
2016-11-21HA120616-18ND
2017-02-28HA030717-232.17 ppb
2017-02-28HA030717-211.73 ppb
2017-02-28HA030717-202.99 ppb
2017-02-28HA030717-22ND
2017-05-23HA060117-09ND
2017-05-23HA060117-111.59 ppb
2017-05-23HA060117-10ND
2017-05-23HA060117-08ND
2017-08-22HA083117-21ND
2017-08-22HA083117-22ND
2017-08-22HA083117-242.08 ppb
2017-08-22HA083117-23ND
2017-11-28HA120517B-133.66 ppb
2017-11-28HA120517B-152.09 ppb
2017-11-28HA120517B-12ND
2017-11-28HA120517B-144.01 ppb
2018-02-26HA030218-182.30 ppb
2018-02-26HA030218-162.13 ppb
2018-02-26HA030218-171.14 ppb
2018-02-26HA030218-192.68 ppb
2018-05-24HA060518-161.75 ppb
2018-05-24HA060518-071.08 ppb
2018-05-24HA060518-063.54 ppb
2018-05-24HA060518-081.52 ppb
2018-08-22HA090518_23ND
2018-08-22HA090518_24ND
2018-08-22HA090518_21ND
2018-08-22HA090518_221.19 ppb
2018-08-2340741401ND
2018-11-1942399901ND
2018-11-1942400001ND
2018-11-1942400101ND
2018-11-1942400201ND
2019-02-1943078201ND
2019-02-1943078501ND
2019-02-1943078401ND
2019-02-1943078301ND
2019-05-2044270701ND
2019-05-2044271001ND
2019-05-2044270901ND
2019-05-2044270801ND
2019-08-1945935601ND
2019-08-1945935301ND
2019-08-1945935401ND
2019-08-1945935501ND
2019-11-1847272301ND
2019-11-1847272401ND
2019-11-1847272201ND
2019-11-1847272101ND