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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Dalton Utilities

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

177

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201412.5 ppb3231ND - 26.0 ppb
201520.8 ppb323212.0 ppb - 33.0 ppb
201615.1 ppb3229ND - 30.0 ppb
201716.8 ppb3228ND - 30.0 ppb
201812.3 ppb3228ND - 24.0 ppb
201910.3 ppb3229ND - 21.0 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
2014-01-27AI271318.90 ppb
2014-01-27AI271327.30 ppb
2014-01-27AI271335.10 ppb
2014-01-27AI271345.80 ppb
2014-01-27AI271354.10 ppb
2014-01-27AI2713611.0 ppb
2014-01-27AI271376.50 ppb
2014-01-27AI271384.60 ppb
2014-04-21AI3837222.0 ppb
2014-04-21AI383738.00 ppb
2014-04-21AI383745.40 ppb
2014-04-21AI3837511.0 ppb
2014-04-21AI3837614.0 ppb
2014-04-21AI3837726.0 ppb
2014-04-21AI3837813.0 ppb
2014-04-21AI383798.80 ppb
2014-07-28AI4699422.0 ppb
2014-07-28AI4699520.0 ppb
2014-07-28AI469968.80 ppb
2014-07-28AI4699716.0 ppb
2014-07-28AI4699812.0 ppb
2014-07-28AI4699919.0 ppb
2014-07-28AI4700026.0 ppb
2014-07-28AI4700121.0 ppb
2014-10-27AI5836914.0 ppb
2014-10-27AI5837014.0 ppb
2014-10-27AI583719.20 ppb
2014-10-27AI5837214.0 ppb
2014-10-27AI5837311.0 ppb
2014-10-27AI58374ND
2014-10-27AI5837518.0 ppb
2014-10-27AI5837612.0 ppb
2015-01-26AI6339813.0 ppb
2015-01-26AI6339913.0 ppb
2015-01-26AI6340013.0 ppb
2015-01-26AI6340121.0 ppb
2015-01-26AI6340222.0 ppb
2015-01-26AI6340313.0 ppb
2015-01-26AI6340414.0 ppb
2015-01-26AI6340512.0 ppb
2015-06-10AI7945519.0 ppb
2015-06-10AI7945626.0 ppb
2015-06-10AI7945717.0 ppb
2015-06-10AI7945812.0 ppb
2015-06-10AI7945915.0 ppb
2015-06-10AI7946021.0 ppb
2015-06-10AI7946129.0 ppb
2015-06-10AI7946219.0 ppb
2015-07-27AI8418227.0 ppb
2015-07-27AI8418328.0 ppb
2015-07-27AI8418418.0 ppb
2015-07-27AI8418519.0 ppb
2015-07-27AI8418620.0 ppb
2015-07-27AI8418726.0 ppb
2015-07-27AI8418833.0 ppb
2015-07-27AI8418925.0 ppb
2015-11-30AJ0163119.0 ppb
2015-11-30AJ0163223.0 ppb
2015-11-30AJ0163320.0 ppb
2015-11-30AJ0163425.0 ppb
2015-11-30AJ0163523.0 ppb
2015-11-30AJ0163630.0 ppb
2015-11-30AJ0163727.0 ppb
2015-11-30AJ0163823.0 ppb
2016-01-26AJ049989.70 ppb
2016-01-26AJ049999.60 ppb
2016-01-26AJ050008.60 ppb
2016-01-26AJ0500119.0 ppb
2016-01-26AJ050027.70 ppb
2016-01-26AJ0500320.0 ppb
2016-01-26AJ0500412.0 ppb
2016-01-26AJ050058.90 ppb
2016-04-27AJ1094310.00 ppb
2016-04-27AJ1094412.0 ppb
2016-04-27AJ109459.30 ppb
2016-04-27AJ10946ND
2016-04-27AJ1094711.0 ppb
2016-04-27AJ1094813.0 ppb
2016-04-27AJ1094912.0 ppb
2016-04-27AJ1095015.0 ppb
2016-07-27AJ1986230.0 ppb
2016-07-27AJ1986323.0 ppb
2016-07-27AJ1986430.0 ppb
2016-07-27AJ19865ND
2016-07-27AJ1986630.0 ppb
2016-07-27AJ1986715.0 ppb
2016-07-27AJ1986820.0 ppb
2016-07-27AJ1986923.0 ppb
2016-10-26AJ3219030.0 ppb
2016-10-26AJ3219126.0 ppb
2016-10-26AJ321928.90 ppb
2016-10-26AJ32193ND
2016-10-26AJ3219414.0 ppb
2016-10-26AJ321958.80 ppb
2016-10-26AJ3219625.0 ppb
2016-10-26AJ3219722.0 ppb
2017-01-25AJ4350118.0 ppb
2017-01-25AJ4350216.0 ppb
2017-01-25AJ4350316.0 ppb
2017-01-25AJ43504ND
2017-01-25AJ4350513.0 ppb
2017-01-25AJ4350619.0 ppb
2017-01-25AJ4350725.0 ppb
2017-01-25AJ435088.50 ppb
2017-04-24AJ5378815.0 ppb
2017-04-24AJ5378914.0 ppb
2017-04-24AJ5379015.0 ppb
2017-04-24AJ53791ND
2017-04-24AJ5379216.0 ppb
2017-04-24AJ5379321.0 ppb
2017-04-24AJ5379410.00 ppb
2017-04-24AJ537959.20 ppb
2017-07-26AJ6175530.0 ppb
2017-07-26AJ6175626.0 ppb
2017-07-26AJ6175720.0 ppb
2017-07-26AJ61758ND
2017-07-26AJ6175922.0 ppb
2017-07-26AJ6176027.0 ppb
2017-07-26AJ6176127.0 ppb
2017-07-26AJ6176223.0 ppb
2017-10-24AJ7225027.0 ppb
2017-10-24AJ7225126.0 ppb
2017-10-24AJ7225223.0 ppb
2017-10-24AJ72253ND
2017-10-24AJ7225412.0 ppb
2017-10-24AJ7225525.0 ppb
2017-10-24AJ7225617.0 ppb
2017-10-24AJ7225717.0 ppb
2018-01-22AJ768036.90 ppb
2018-01-22AJ768047.90 ppb
2018-01-22AJ768058.70 ppb
2018-01-22AJ76806ND
2018-01-22AJ768078.50 ppb
2018-01-22AJ768087.70 ppb
2018-01-22AJ768098.30 ppb
2018-01-22AJ768106.90 ppb
2018-04-25AJ8810615.0 ppb
2018-04-25AJ8810712.0 ppb
2018-04-25AJ8810817.0 ppb
2018-04-25AJ88109ND
2018-04-25AJ881108.10 ppb
2018-04-25AJ8811115.0 ppb
2018-04-25AJ8811212.0 ppb
2018-04-25AJ8811316.0 ppb
2018-07-25AJ9539921.0 ppb
2018-07-25AJ9540020.0 ppb
2018-07-25AJ9540115.0 ppb
2018-07-25AJ95402ND
2018-07-25AJ9540314.0 ppb
2018-07-25AJ9540420.0 ppb
2018-07-25AJ9540510.00 ppb
2018-07-25AJ9540614.0 ppb
2018-10-24AK0472623.0 ppb
2018-10-24AK0472724.0 ppb
2018-10-24AK0472813.0 ppb
2018-10-24AK04729ND
2018-10-24AK0473017.0 ppb
2018-10-24AK0473124.0 ppb
2018-10-24AK0473211.0 ppb
2018-10-24AK0473319.0 ppb
2019-01-22AK097599.20 ppb
2019-01-22AK0976012.0 ppb
2019-01-22AK097617.90 ppb
2019-01-22AK09762ND
2019-01-22AK0976314.0 ppb
2019-01-22AK0976414.0 ppb
2019-01-22AK097655.80 ppb
2019-01-22AK097669.30 ppb
2019-04-23AK156419.50 ppb
2019-04-23AK156428.20 ppb
2019-04-23AK156437.20 ppb
2019-04-23AK15644ND
2019-04-23AK1564513.0 ppb
2019-04-23AK1564615.0 ppb
2019-04-23AK156475.10 ppb
2019-04-23AK1564810.00 ppb
2019-07-24AK2333914.0 ppb
2019-07-24AK2334011.0 ppb
2019-07-24AK233418.90 ppb
2019-07-24AK233429.20 ppb
2019-07-24AK2334317.0 ppb
2019-07-24AK2334411.0 ppb
2019-07-24AK2334512.0 ppb
2019-07-24AK2334611.0 ppb
2019-10-22AK3542617.0 ppb
2019-10-22AK3542718.0 ppb
2019-10-22AK354287.50 ppb
2019-10-22AK35429ND
2019-10-22AK3543021.0 ppb
2019-10-22AK3543111.0 ppb
2019-10-22AK3543211.0 ppb
2019-10-22AK354339.60 ppb