Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Rogersville Water System

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND20ND
2020N/A00N/A
2021ND50ND
2022ND60ND
2023ND70ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Result
2018-03-13ND
2018-03-27ND
2018-05-14ND
2018-08-02ND
2018-10-31ND
2019-04-08ND
2019-07-15ND
2021-01-12ND
2021-04-06ND
2021-04-21ND
2021-07-26ND
2021-10-13ND
2022-01-11ND
2022-01-11ND
2022-04-06ND
2022-04-06ND
2022-07-11ND
2022-10-07ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-04-04ND
2023-04-18ND
2023-07-18ND
2023-10-31ND