Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Westbound Water Supply Corporation Cisco Source

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-11-28Q1848312002ND
2018-11-28Q1848312004ND
2019-12-17Q1980357004ND
2019-12-17Q1980357006ND
2020-11-09Q2043631003ND
2020-11-09Q2043631009ND
2021-02-09Q2103863001ND
2021-02-09Q2103863003ND
2022-02-16Q2205765002ND
2022-02-16Q2205765004ND
2023-02-07Q2304671006ND
2023-07-12Q2327347004ND