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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Middletown Water Department

Trichloroacetic 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
201414.8 ppb242410.00 ppb - 21.6 ppb
2015N/A00N/A
201612.5 ppb16168.00 ppb - 16.4 ppb
201710.9 ppb16166.70 ppb - 15.3 ppb
201813.2 ppb161611.3 ppb - 15.8 ppb
201912.6 ppb16169.60 ppb - 17.2 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic 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 20038899711.6 ppb
2014-01-07DBP 20038899814.1 ppb
2014-01-07DBP 20038899914.0 ppb
2014-01-07DBP 20038899612.6 ppb
2014-03-13DBP 20039266515.6 ppb
2014-03-13DBP 20039266614.4 ppb
2014-03-13DBP 20039266715.0 ppb
2014-03-13DBP 20039266814.6 ppb
2014-04-04DBP 20039370516.7 ppb
2014-04-04DBP 20039370421.6 ppb
2014-04-04DBP 20039370315.6 ppb
2014-04-04DBP 20039370217.2 ppb
2014-07-03DBP 20039899517.8 ppb
2014-07-03DBP 20039899613.8 ppb
2014-07-03DBP 20039899819.2 ppb
2014-07-03DBP 20039899919.4 ppb
2014-10-02DBP 20040538713.1 ppb
2014-10-02DBP 20040538812.0 ppb
2014-10-02DBP 20040538915.3 ppb
2014-10-02DBP 20040539015.4 ppb
2014-12-11DBP 20040945712.9 ppb
2014-12-11DBP 20040945612.2 ppb
2014-12-11DBP 20040945510.00 ppb
2014-12-11DBP 20040945410.8 ppb
2016-01-07DBP 2004315898.00 ppb
2016-01-07DBP 20043159010.7 ppb
2016-01-07DBP 20043159111.5 ppb
2016-01-07DBP 20043158810.1 ppb
2016-04-07DBP 20043684114.8 ppb
2016-04-07DBP 20043684212.3 ppb
2016-04-07DBP 20043684315.1 ppb
2016-04-07DBP 20043684416.4 ppb
2016-07-07DBP 20044403513.8 ppb
2016-07-07DBP 20044403614.4 ppb
2016-07-07DBP 20044403413.9 ppb
2016-07-07DBP 20044403314.5 ppb
2016-10-07DBP 20045191611.2 ppb
2016-10-07DBP 2004519178.60 ppb
2016-10-07DBP 20045191813.1 ppb
2016-10-07DBP 20045191912.1 ppb
2017-01-05DBP 2004581906.70 ppb
2017-01-05DBP 2004581916.70 ppb
2017-01-05DBP 2004581928.00 ppb
2017-01-05DBP 2004581937.50 ppb
2017-04-07DBP 20046409111.4 ppb
2017-04-07DBP 2004640889.40 ppb
2017-04-07DBP 20046408910.7 ppb
2017-04-07DBP 20046409012.8 ppb
2017-07-06DBP 20047128314.0 ppb
2017-07-06DBP 20047128413.2 ppb
2017-07-06DBP 20047128514.8 ppb
2017-07-06DBP 20047128615.3 ppb
2017-10-05DBP 20047879211.2 ppb
2017-10-05DBP 20047879310.6 ppb
2017-10-05DBP 20047879411.2 ppb
2017-10-05DBP 20047879510.9 ppb
2018-01-05DBP 20048541011.3 ppb
2018-01-05DBP 20048541312.8 ppb
2018-01-05DBP 20048541215.8 ppb
2018-01-05DBP 20048541112.1 ppb
2018-04-05DBP 20049144613.0 ppb
2018-04-05DBP 20049144713.8 ppb
2018-04-05DBP 20049144814.3 ppb
2018-04-05DBP 20049144913.9 ppb
2018-07-04DBP 20049864112.4 ppb
2018-07-04DBP 20049864012.9 ppb
2018-07-04DBP 20049863812.4 ppb
2018-07-04DBP 20049863912.3 ppb
2018-10-04DBP 20050804712.0 ppb
2018-10-04DBP 20050804814.2 ppb
2018-10-04DBP 20050804913.6 ppb
2018-10-04DBP 20050805013.7 ppb
2019-01-03DBP 20051750612.7 ppb
2019-01-03DBP 20051750711.8 ppb
2019-01-03DBP 20051750817.2 ppb
2019-01-03DBP 20051750912.4 ppb
2019-04-04DBP 20052718314.2 ppb
2019-04-04DBP 20052718514.9 ppb
2019-04-04DBP 20052718416.3 ppb
2019-04-04DBP 20052718213.8 ppb
2019-07-03DBP 20053892212.0 ppb
2019-07-03DBP 20053892312.1 ppb
2019-07-03DBP 20053892411.3 ppb
2019-07-03DBP 20053892511.3 ppb
2019-10-17DBP 2005533339.60 ppb
2019-10-17DBP 20055333510.1 ppb
2019-10-17DBP 20055333711.2 ppb
2019-10-17DBP 20055333911.2 ppb