Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

South Grafton Water District

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

 

23

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
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND30ND
2023ND200ND

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 Result
2022-09-06ND
2022-10-03ND
2022-11-07ND
2023-02-06ND
2023-02-06ND
2023-03-06ND
2023-03-06ND
2023-04-03ND
2023-04-03ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-06-12ND
2023-06-12ND
2023-07-10ND
2023-07-10ND
2023-08-07ND
2023-08-07ND
2023-09-05ND
2023-09-05ND
2023-10-02ND
2023-11-06ND
2023-12-04ND