Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Highridge Water Authority

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
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
2018-06-137054911001ND
2018-06-137054911002ND
2019-06-127093386001ND
2019-06-127093386002ND
2019-07-167097758001ND
2019-07-167097758002ND
2020-02-2521769547.00ND
2020-02-2521769567.00ND
2021-02-1623985688.00ND
2021-02-1623985708.00ND
2022-06-0726956514.00ND
2022-06-0726956534.00ND
2023-03-2128626417.00ND
2023-03-2128626437.00ND