Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Jefferson County Water Control and Improvement District 10

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

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND30ND
2022ND20ND
2023ND10ND

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
2018-01-31AE11563ND
2019-02-21AE55356ND
2020-02-13AE98437ND
2021-05-24AF55157ND
2021-07-19AF62432ND
2021-11-18AF77134ND
2022-01-12AF80004ND
2022-04-12AF92929ND
2023-01-09AG23456ND