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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Anson County Water System

Dichloroacetic 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

 

105

Samples

0

Samples exceeding legal limit (MCL)

104

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201422.7 ppb161613.0 ppb - 38.0 ppb
201523.8 ppb161611.0 ppb - 32.0 ppb
201617.8 ppb161612.0 ppb - 27.0 ppb
201724.4 ppb161614.0 ppb - 35.0 ppb
201821.0 ppb2423ND - 33.0 ppb
201916.4 ppb17179.10 ppb - 25.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-2692195050001DIS-217.0 ppb
2014-03-2692195050002DIS-213.0 ppb
2014-03-2692195050003DIS-214.0 ppb
2014-03-2692195050004DIS-216.0 ppb
2014-05-2192202517001DIS-229.0 ppb
2014-05-2192202517002DIS-230.0 ppb
2014-05-2192202517003DIS-238.0 ppb
2014-05-2192202517004DIS-238.0 ppb
2014-08-2292214563001TTH-224.0 ppb
2014-08-2292214563002TTH-226.0 ppb
2014-08-2292214563003TTH-226.0 ppb
2014-08-2292214563004TTH-225.0 ppb
2014-11-1892226519001TTH-217.0 ppb
2014-11-1892226519002TTH-217.0 ppb
2014-11-1892226519003TTH-215.0 ppb
2014-11-1892226519004TTH-218.0 ppb
2015-02-1813.0 ppb
2015-02-1812.0 ppb
2015-02-1811.0 ppb
2015-02-1815.0 ppb
2015-05-2022.0 ppb
2015-05-2019.0 ppb
2015-05-2028.0 ppb
2015-05-2028.0 ppb
2015-08-1928.0 ppb
2015-08-1928.0 ppb
2015-08-1929.0 ppb
2015-08-1932.0 ppb
2015-11-1830.3 ppb
2015-11-1828.0 ppb
2015-11-1827.0 ppb
2015-11-1831.0 ppb
2016-02-1792287116001TTH-212.0 ppb
2016-02-1792287116002TTH-213.0 ppb
2016-02-1792287116003TTH-213.0 ppb
2016-02-1792287116004TTH-212.0 ppb
2016-05-1992298434001TTH-219.0 ppb
2016-05-1992298434002TTH-217.0 ppb
2016-05-1992298434003TTH-216.0 ppb
2016-05-1992298434004TTH-218.0 ppb
2016-08-1792309424001TTH-225.0 ppb
2016-08-1792309424002TTH-224.0 ppb
2016-08-1792309424003TTH-227.0 ppb
2016-08-1792309424004TTH-226.0 ppb
2016-11-1692320211001TTH-214.0 ppb
2016-11-1692320211002TTH-214.0 ppb
2016-11-1692320211003TTH-214.0 ppb
2016-11-1692320211004TTH-220.0 ppb
2017-02-1592330355001TTH19.0 ppb
2017-02-1592330355002TTH19.0 ppb
2017-02-1592330355003TTH21.0 ppb
2017-02-1592330355004TTH25.0 ppb
2017-05-1292341157001TTH26.0 ppb
2017-05-1292341157002TTH33.0 ppb
2017-05-1292341157003TTH35.0 ppb
2017-05-1292341157004TTH28.0 ppb
2017-08-1692352111001TTH31.0 ppb
2017-08-1692352111002TTH32.0 ppb
2017-08-1692352111005TTH31.0 ppb
2017-08-1792352111004TTH31.0 ppb
2017-11-1592363800001TTH14.0 ppb
2017-11-1592363800002TTH16.0 ppb
2017-11-1592363800003TTH15.0 ppb
2017-11-1592363800004TTH14.0 ppb
2018-02-1492373624005TTH 19.0 ppb
2018-02-1492373624006TTH 19.0 ppb
2018-02-1492373624007TTH 19.0 ppb
2018-02-1492373624008TTH 21.0 ppb
2018-05-0992384772001TTH 26.0 ppb
2018-05-0992384772002TTH 27.0 ppb
2018-05-0992384772003TTH 26.0 ppb
2018-05-0992384772004TTH 24.0 ppb
2018-08-0992395748001TTH 32.0 ppb
2018-08-0992395748002TTH 33.0 ppb
2018-08-0992395748003TTH 32.0 ppb
2018-08-0992395748004TTH 30.0 ppb
2018-11-282424-18 ND
2018-11-282425-18 18.0 ppb
2018-11-282426-18 17.0 ppb
2018-11-282427-18 9.00 ppb
2018-11-2892409452002 17.0 ppb
2018-11-2892409452002_377017.0 ppb
2018-11-2892409452003 20.0 ppb
2018-11-2892409452003_377020.0 ppb
2018-11-2892409452004 20.0 ppb
2018-11-2892409452004_377020.0 ppb
2018-11-2892409452005 19.0 ppb
2018-11-2892409452005_377019.0 ppb
2019-02-1292418267001_377013.0 ppb
2019-02-1292418267002_377012.0 ppb
2019-02-1292418267003_377013.0 ppb
2019-02-1292418267004_377012.0 ppb
2019-05-2292430651001_377023.0 ppb
2019-05-2292430651002_377022.0 ppb
2019-05-2292430651003_377021.0 ppb
2019-05-2292430651004_377022.0 ppb
2019-08-1492442133002_377024.0 ppb
2019-08-1492442133004_377023.0 ppb
2019-08-2092442133001_377025.0 ppb
2019-08-2692442996001_377018.0 ppb
2019-11-1992455540001_377010.00 ppb
2019-11-1992455540002_37709.70 ppb
2019-11-1992455540003_37709.10 ppb
2019-11-1992455540004_377010.00 ppb
2019-12-0492457286001_377012.0 ppb