Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1-Dichloroethylene

Quartz Hill Water District

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

MORE ABOUT THIS CONTAMINANT

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND90ND
2016ND90ND
2017ND90ND
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-10-283761-021-0655ND
2014-10-283761-018-0836ND
2014-10-283761-017-0844ND
2014-10-283761-016-0707ND
2014-10-283761-015-0904ND
2014-10-283761-012-0736ND
2014-10-283761-009-0821ND
2014-10-283761-006-0758ND
2014-10-283761-005-0742ND
2015-10-133761-017-0838ND
2015-10-133761-021-0908ND
2015-10-133761-018-0848ND
2015-10-133761-005-0735ND
2015-10-133761-016-0900ND
2015-10-133761-006-0800ND
2015-10-133761-015-0825ND
2015-10-133761-009-0815ND
2015-10-133761-012-0720ND
2016-07-193761-021-0715ND
2016-07-193761-005-0845ND
2016-07-193761-006-0810ND
2016-07-193761-009-0755ND
2016-07-193761-012-0830ND
2016-07-193761-018-0725ND
2016-07-193761-017-0740ND
2016-07-193761-016-0705ND
2016-07-193761-015-0650ND
2017-07-183761-018-0805ND
2017-07-183761-015-0735ND
2017-07-183761-021-0715ND
2017-07-183761-012-0850ND
2017-07-183761-009-0815ND
2017-07-183761-017-0750ND
2017-07-183761-006-0840ND
2017-07-183761-016-0700ND
2017-07-183761-005-0900ND