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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Middletown 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

 

88

Samples

0

Samples exceeding legal limit (MCL)

88

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201414.3 ppb24245.60 ppb - 29.0 ppb
2015N/A00N/A
201615.0 ppb16167.00 ppb - 24.2 ppb
201711.8 ppb16164.90 ppb - 22.2 ppb
201811.2 ppb16162.70 ppb - 15.9 ppb
20198.72 ppb16161.90 ppb - 17.1 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
2014-01-07DBP 2003889979.80 ppb
2014-01-07DBP 2003889988.50 ppb
2014-01-07DBP 20038899913.2 ppb
2014-01-07DBP 20038899611.3 ppb
2014-03-13DBP 20039266515.0 ppb
2014-03-13DBP 20039266613.3 ppb
2014-03-13DBP 20039266711.4 ppb
2014-03-13DBP 20039266813.9 ppb
2014-04-04DBP 20039370515.1 ppb
2014-04-04DBP 20039370413.3 ppb
2014-04-04DBP 20039370314.1 ppb
2014-04-04DBP 20039370216.5 ppb
2014-07-03DBP 20039899526.1 ppb
2014-07-03DBP 2003989969.00 ppb
2014-07-03DBP 20039899821.6 ppb
2014-07-03DBP 20039899929.0 ppb
2014-10-02DBP 20040538717.7 ppb
2014-10-02DBP 20040538814.0 ppb
2014-10-02DBP 2004053898.90 ppb
2014-10-02DBP 20040539021.5 ppb
2014-12-11DBP 20040945714.6 ppb
2014-12-11DBP 2004094565.60 ppb
2014-12-11DBP 2004094559.30 ppb
2014-12-11DBP 20040945411.6 ppb
2016-01-07DBP 2004315897.60 ppb
2016-01-07DBP 2004315907.00 ppb
2016-01-07DBP 20043159110.2 ppb
2016-01-07DBP 20043158810.00 ppb
2016-04-07DBP 20043684119.1 ppb
2016-04-07DBP 20043684214.1 ppb
2016-04-07DBP 20043684319.0 ppb
2016-04-07DBP 20043684420.9 ppb
2016-07-07DBP 20044403520.5 ppb
2016-07-07DBP 20044403624.2 ppb
2016-07-07DBP 20044403420.0 ppb
2016-07-07DBP 20044403322.8 ppb
2016-10-07DBP 20045191613.1 ppb
2016-10-07DBP 20045191710.7 ppb
2016-10-07DBP 2004519187.30 ppb
2016-10-07DBP 20045191912.9 ppb
2017-01-05DBP 2004581907.20 ppb
2017-01-05DBP 2004581917.00 ppb
2017-01-05DBP 2004581924.90 ppb
2017-01-05DBP 2004581937.70 ppb
2017-04-07DBP 20046409113.3 ppb
2017-04-07DBP 20046408811.4 ppb
2017-04-07DBP 20046408912.2 ppb
2017-04-07DBP 20046409013.9 ppb
2017-07-06DBP 20047128318.6 ppb
2017-07-06DBP 20047128416.8 ppb
2017-07-06DBP 20047128515.0 ppb
2017-07-06DBP 20047128622.2 ppb
2017-10-05DBP 20047879212.5 ppb
2017-10-05DBP 2004787939.70 ppb
2017-10-05DBP 2004787947.60 ppb
2017-10-05DBP 2004787959.00 ppb
2018-01-05DBP 20048541010.7 ppb
2018-01-05DBP 20048541311.8 ppb
2018-01-05DBP 2004854123.40 ppb
2018-01-05DBP 20048541111.3 ppb
2018-04-05DBP 20049144614.6 ppb
2018-04-05DBP 20049144715.0 ppb
2018-04-05DBP 20049144815.8 ppb
2018-04-05DBP 20049144914.8 ppb
2018-07-04DBP 20049864115.9 ppb
2018-07-04DBP 20049864012.8 ppb
2018-07-04DBP 20049863815.1 ppb
2018-07-04DBP 20049863913.2 ppb
2018-10-04DBP 2005080479.00 ppb
2018-10-04DBP 2005080488.00 ppb
2018-10-04DBP 2005080492.70 ppb
2018-10-04DBP 2005080504.60 ppb
2019-01-03DBP 20051750613.1 ppb
2019-01-03DBP 20051750712.2 ppb
2019-01-03DBP 2005175082.00 ppb
2019-01-03DBP 20051750912.9 ppb
2019-04-04DBP 20052718314.4 ppb
2019-04-04DBP 20052718516.0 ppb
2019-04-04DBP 20052718417.1 ppb
2019-04-04DBP 20052718213.8 ppb
2019-07-03DBP 2005389222.90 ppb
2019-07-03DBP 2005389239.30 ppb
2019-07-03DBP 2005389241.90 ppb
2019-07-03DBP 2005389252.00 ppb
2019-10-17DBP 2005533337.20 ppb
2019-10-17DBP 2005533352.20 ppb
2019-10-17DBP 2005533375.80 ppb
2019-10-17DBP 2005533396.70 ppb