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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Southington Water Department

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

 

80

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.39 ppb168ND - 30.0 ppb
2015N/A00N/A
20162.02 ppb168ND - 23.0 ppb
20171.32 ppb169ND - 13.2 ppb
20181.53 ppb168ND - 12.0 ppb
20195.18 ppb168ND - 37.0 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
2014-02-11E402719-2CHND
2014-02-11E402719-3CHND
2014-02-11E402719-4CHND
2014-02-11E402719-1CHND
2014-05-21E405J92-1CH0.900 ppb
2014-05-21E405J92-2CHND
2014-05-21E405J92-3CH0.730 ppb
2014-05-21E405J92-4CHND
2014-08-06E408629-4GEND
2014-08-06E408629-3GE30.0 ppb
2014-08-06E408629-2GE30.0 ppb
2014-08-06E408629-1GE6.30 ppb
2014-11-19E411H83-1GE1.000 ppb
2014-11-19E411H83-2GEND
2014-11-19E411H83-3GE0.760 ppb
2014-11-19E411H83-4GE0.520 ppb
2016-02-17E602H32-1GE0.770 ppb
2016-02-17E602H32-2GE0.650 ppb
2016-02-17E602H32-3GEND
2016-02-17E602H32-4GEND
2016-06-16E606J93-2GE1.20 ppb
2016-06-16E606J93-4GE1.40 ppb
2016-06-16E606J93-3GE0.580 ppb
2016-06-16E606J93-1GE1.10 ppb
2016-08-10E608F97-2GE23.0 ppb
2016-08-10E608F97-3GEND
2016-08-10E608F97-4GEND
2016-08-10E608F97-1GE3.60 ppb
2016-11-16E611K73-1GEND
2016-11-16E611K73-2GEND
2016-11-16E611K73-3GEND
2016-11-16E611K73-4GEND
2017-02-15E702E82-1GE0.940 ppb
2017-02-15E702E82-4GE0.590 ppb
2017-02-15E702E82-3GEND
2017-02-15E702E82-2GE0.660 ppb
2017-05-17D7E1784-02HA5ND
2017-05-17D7E1784-03HA5ND
2017-05-17D7E1784-04HA5ND
2017-05-23D7E2298-01HA51.90 ppb
2017-08-09D7H1248-04HA5ND
2017-08-09D7H1248-01HA51.60 ppb
2017-08-09D7H1248-02HA513.2 ppb
2017-08-09D7H1248-03HA5ND
2017-11-15D7K1449-02HA50.600 ppb
2017-11-15D7K1449-03HA5ND
2017-11-15D7K1449-04HA50.900 ppb
2017-11-15D7K1449-01HA50.700 ppb
2018-02-14D8B1083-01HA50.800 ppb
2018-02-14D8B1083-02HA50.800 ppb
2018-02-14D8B1083-03HA5ND
2018-02-14D8B1083-04HA5ND
2018-05-17D8E1923-02HA51.40 ppb
2018-05-17D8E1923-04HA5ND
2018-05-17D8E1923-03HA5ND
2018-05-17D8E1923-01HA57.10 ppb
2018-08-16D8H1999-01HA50.900 ppb
2018-08-16D8H1999-02HA512.0 ppb
2018-08-16D8H1999-03HA5ND
2018-08-16D8H1999-04HA5ND
2018-11-14D8K1692-04HA50.700 ppb
2018-11-14D8K1692-02HA50.800 ppb
2018-11-14D8K1692-01HA5ND
2018-11-14D8K1692-03HA5ND
2019-02-13D9B1230-01HA5ND
2019-02-13D9B1230-02HA50.563 ppb
2019-02-13D9B1230-03HA5ND
2019-02-13D9B1230-04HA5ND
2019-05-15D9E1867-02HA50.675 ppb
2019-05-15D9E1867-03HA5ND
2019-05-15D9E1867-04HA5ND
2019-06-10D9F1015-01HA51.27 ppb
2019-08-14D9H1826-01HA56.60 ppb
2019-08-14D9H1826-03HA537.0 ppb
2019-08-14D9H1826-02HA534.0 ppb
2019-08-14D9H1826-04HA51.60 ppb
2019-11-13D9K1352-01HA5ND
2019-11-13D9K1352-02HA5ND
2019-11-13D9K1352-03HA5ND
2019-11-13D9K1352-04HA51.16 ppb