Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Knights Landing Service District

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

 

5

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
2020ND20ND
2021N/A00N/A
2022ND10ND
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
2019-01-15CA5710004_004_004-201901150920ND
2020-02-25CA5710004_005_005-202002250955ND
2020-02-25CA5710004_003_003-202002251100ND
2022-07-25CA5710004_004_004-202207251023ND
2023-12-29CA5710004_003_003-202312290752ND