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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

 

90

Samples

0

Samples exceeding legal limit (MCL)

42

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.548 ppb82ND - 3.05 ppb
20151.38 ppb1610ND - 3.49 ppb
20161.10 ppb1611ND - 2.80 ppb
20170.734 ppb157ND - 2.80 ppb
20180.669 ppb187ND - 2.52 ppb
20190.369 ppb175ND - 1.56 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
2014-09-22L5257799-51.33 ppb
2014-09-22L5257799-4ND
2014-09-22L5257799-3ND
2014-09-22L5257799-23.05 ppb
2014-12-30S603680ND
2014-12-30L5397204-4ND
2014-12-30L5397204-3ND
2014-12-30L5397204-2ND
2015-03-31L5526188-6ND
2015-03-31L5526188-5ND
2015-03-31L5526188-7ND
2015-03-31L5526188-8ND
2015-06-30L5676935-5ND
2015-06-30L5676935-43.25 ppb
2015-06-30L5676935-32.10 ppb
2015-06-30L5676935-21.89 ppb
2015-06-30L5676935-11.57 ppb
2015-09-30L5855211-8 HAA52.82 ppb
2015-09-30L5855211-7 HAA51.22 ppb
2015-09-30L5855211-6 HAA5ND
2015-09-30L5855211-5 HAA52.54 ppb
2015-12-21L5976007-81.85 ppb
2015-12-21L5976007-61.38 ppb
2015-12-21L5976007-73.49 ppb
2016-03-31L6169969-82.80 ppb
2016-03-31L6169969-71.40 ppb
2016-03-31L6169969-61.30 ppb
2016-03-31L6169969-51.60 ppb
2016-06-29L6343273-5 HAA5ND
2016-06-29L6343273-6 HAA5ND
2016-06-29L6343273-7 HHA5ND
2016-06-29L6343273-8 HAA5ND
2016-09-29L6498471-81.80 ppb
2016-09-29L6498471-71.000 ppb
2016-09-29L6498471-61.80 ppb
2016-09-29L6498471-5ND
2016-12-1421965720082.60 ppb
2016-12-1421965720071.000 ppb
2016-12-1421965720061.30 ppb
2016-12-1421965720051.000 ppb
2017-03-302219201005ND
2017-03-3022192010062.80 ppb
2017-03-302219201007ND
2017-03-302219201008ND
2017-06-2822429570082.20 ppb
2017-06-282242957007ND
2017-06-282242957006ND
2017-06-2822429570051.70 ppb
2017-12-19S782113ND
2017-12-19S7821111.05 ppb
2017-12-19S7821101.08 ppb
2017-12-19S7821081.07 ppb
2017-12-19S7821071.11 ppb
2017-12-19S782105ND
2017-12-19S782104ND
2018-01-16S769240ND
2018-01-16S769239ND
2018-03-2610516112.26 ppb
2018-03-261051599ND
2018-03-2610515891.97 ppb
2018-03-281051593ND
2018-06-26S808472ND
2018-06-26S808470ND
2018-06-26S8084681.81 ppb
2018-06-26S808466ND
2018-09-26S808662ND
2018-09-26S8086582.52 ppb
2018-09-26S8086601.25 ppb
2018-09-26S808663ND
2018-12-17S854859ND
2018-12-17S854857ND
2018-12-17S8548491.10 ppb
2018-12-17S8548471.13 ppb
2019-03-28S866475ND
2019-03-28S866467ND
2019-03-28S856468ND
2019-03-28S856466ND
2019-03-28S856465ND
2019-06-27S893181ND
2019-06-27S8931751.05 ppb
2019-06-27S8931771.56 ppb
2019-06-27S893179ND
2019-09-30S9093011.00 ppb
2019-09-30S9092851.30 ppb
2019-10-31S925207ND
2019-10-31S9252041.37 ppb
2019-12-09S927514ND
2019-12-09S927526ND
2019-12-09S927522ND
2019-12-09S927518ND