Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Mary Francis Subdivision

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
2018-03-21AE19340ND
2018-08-06AE35858ND
2019-05-07AE65192ND
2019-05-07AE65206ND
2020-05-06AF09700ND
2020-05-06AF09732ND
2021-08-03AF64475ND
2021-08-03AF64485ND
2022-10-19AG17644ND
2022-10-19AG17646ND
2023-05-23AG41639ND
2023-05-23AG41641ND