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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Hoosick Falls

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

 

81

Samples

0

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.66 ppb991.20 ppb - 5.99 ppb
20151.25 ppb129ND - 2.90 ppb
20160.191 ppb164ND - 1.000 ppb
20173.14 ppb168ND - 45.5 ppb
20180.121 ppb153ND - 0.710 ppb
20190.0411 ppb131ND - 0.534 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
2014-06-09JH14036901.20 ppb
2014-06-09JH14036922.00 ppb
2014-06-09JH14036942.00 ppb
2014-09-18JH14067885.99 ppb
2014-09-18JH14067861.31 ppb
2014-09-18JH14067904.24 ppb
2014-12-16JH14088722.37 ppb
2014-12-16JH14088742.90 ppb
2014-12-16JH14088701.91 ppb
2015-03-17JH1501638ND
2015-03-17JH1501640ND
2015-03-17JH1501636ND
2015-03-17JH15016421.15 ppb
2015-09-21JH15065492.10 ppb
2015-09-21JH15065512.90 ppb
2015-09-21JH15065551.20 ppb
2015-09-21JH15065532.50 ppb
2015-12-11JH15084030.910 ppb
2015-12-11JH15084070.880 ppb
2015-12-11JH15084051.20 ppb
2015-12-11JH15084092.20 ppb
2016-03-21JH1601919ND
2016-03-21JH1601921ND
2016-03-21JH1601925ND
2016-03-21JH1601923ND
2016-06-14JH1604876ND
2016-06-14JH16048700.510 ppb
2016-06-14JH1604872ND
2016-06-14JH1604874ND
2016-09-22JH16082570.690 ppb
2016-09-22JH1608259ND
2016-09-22JH16082550.850 ppb
2016-09-22JH16082531.000 ppb
2016-12-20JH1611115ND
2016-12-20JH1611111ND
2016-12-20JH1611113ND
2016-12-20JH1611109ND
2017-03-27JH1702121ND
2017-03-27JH1702117ND
2017-03-27JH1702123ND
2017-03-27JH1702119ND
2017-06-20JH170414645.5 ppb
2017-06-20JH1704150ND
2017-06-20JH1704152ND
2017-06-2011799ND
2017-09-20JH17077340.967 ppb
2017-09-20JH17077280.679 ppb
2017-09-20JH17077300.635 ppb
2017-09-20JH17077320.890 ppb
2017-12-11JH17098400.540 ppb
2017-12-11JH1709838ND
2017-12-11JH17098440.510 ppb
2017-12-11JH17098420.560 ppb
2018-02-20JH1801171-72ND
2018-02-20JH1801168ND
2018-02-20JH1801166ND
2018-02-20JH1801172ND
2018-02-20JH1801171ND
2018-02-20JH1801170ND
2018-06-18JH1804227ND
2018-06-18JH1804230ND
2018-06-18JH1804228ND
2018-06-18JH18042340.600 ppb
2018-06-18JH18042320.710 ppb
2018-12-11JH1809749-HAA5ND
2018-12-11JH18097480.510 ppb
2018-12-11JH1809750-HAA5ND
2018-12-11JH1809751-HAA5ND
2019-03-11JH1901457ND
2019-03-11JH19014550.534 ppb
2019-03-11JH1901459ND
2019-03-11JH1901461ND
2019-06-12JH1903676ND
2019-06-12JH1903675-HAAND
2019-06-12JH1903673-HAAND
2019-06-12JH1903674-HAAND
2019-06-12JH1903676-DBPND
2019-12-09JH1908731ND
2019-12-09JH1908728ND
2019-12-09JH1908729ND
2019-12-09JH1908730ND