Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Knoxville Water Department

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND20ND
2022ND10ND
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
2018-09-111824375-01ND
2019-05-147090194001ND
2020-08-1122833128.00ND
2021-03-0924092663.00ND
2021-03-0924092619.00ND
2022-10-1327674599.00ND
2023-06-0629143798.00ND
2023-06-0629143818.00ND