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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

City of Kerrville

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

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39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND10ND
2015ND60ND
2016ND50ND
2017ND120ND
2018ND80ND
2019ND70ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as 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
2014-07-16AC59841ND
2015-04-15AC88380ND
2015-07-20AD00201ND
2015-07-20AD00203ND
2015-08-14AD04432ND
2015-08-14AD04428ND
2015-08-14AD04430ND
2016-02-01AD21129ND
2016-04-18AD33348ND
2016-07-05AD42974ND
2016-07-05AD42962ND
2016-10-24AD54358ND
2017-04-06AD78768ND
2017-05-08AD83088ND
2017-05-08AD83086ND
2017-05-09AD83357ND
2017-05-09AD83359ND
2017-05-09AD83355ND
2017-07-05AD88335ND
2017-07-05AD88337ND
2017-07-05AD88333ND
2017-07-05AD88339ND
2017-10-09AD99820ND
2017-10-09AD99818ND
2018-01-08AE08106ND
2018-01-08AE08108ND
2018-03-22AE19623ND
2018-07-16AE33381ND
2018-10-01AE42259ND
2018-10-01AE42261ND
2018-10-01AE42265ND
2018-10-01AE42263ND
2019-01-14AE49587ND
2019-01-14AE49579ND
2019-04-08AE61438ND
2019-04-08AE61434ND
2019-07-15AE74443ND
2019-07-15AE74449ND
2019-10-03AE85692ND