Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Columbia Water Company

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
2018ND10ND
2019ND10ND
2020ND40ND
2021ND10ND
2022ND10ND
2023ND40ND

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
2018-04-022306480001ND
2019-04-109042204-01ND
2020-04-0722172651.00ND
2020-04-0722172672.00ND
2020-04-1322172773.00ND
2020-04-2322173053.00ND
2021-04-1224395234.00ND
2022-04-1126608862.00ND
2023-03-0628662970.00ND
2023-04-0328859671.00ND
2023-04-1729061118.00ND
2023-04-1728859833.00ND