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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

Clearbrooke Estates Pump District

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

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND20ND
2016ND20ND
2017ND30ND
2018ND30ND
2019ND20ND

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
2014-04-15S479172ND
2014-08-26S588720ND
2014-08-26S588722ND
2015-08-20S614713ND
2015-08-20S614714ND
2016-08-09S670427ND
2016-08-09S670428ND
2017-04-20S730803ND
2017-08-29S737126ND
2017-08-29S737130ND
2018-08-30S812123ND
2018-08-30S812127ND
2018-08-30S812128ND
2019-08-21S865032ND
2019-08-21S865036ND