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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Badger Water Supply

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.250 ppb41ND - 1.000 ppb
20150.857 ppb71ND - 6.00 ppb
2016ND60ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-07-1420631951.000 ppb
2014-08-262075289ND
2014-10-152086435ND
2014-10-152086436ND
2015-01-23OE2113326.00 ppb
2015-04-06OE228625ND
2015-04-06OE228626ND
2015-07-06OE264406ND
2015-07-06OE264405ND
2015-10-06OE303048ND
2015-10-06OE303049ND
2016-01-12OE334981ND
2016-01-12OE334982ND
2016-04-04OE361966ND
2016-04-04OE361965ND
2016-07-04OE398521ND
2016-07-04OE398520ND
2017-07-11OE537386ND
2017-07-11OE537387ND
2018-07-16OE684462ND
2018-07-16OE684463ND
2019-07-17OE837333ND
2019-07-19OE837334ND