Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

South Blount Utility District

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND40ND
2020N/A00N/A
2021ND10ND
2022ND20ND
2023ND30ND

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
2018-01-22ND
2018-04-03ND
2018-07-26ND
2018-10-10ND
2018-10-10ND
2019-01-09ND
2019-04-30ND
2019-07-15ND
2019-10-15ND
2021-01-14ND
2022-01-13ND
2022-01-13ND
2023-01-12ND
2023-01-12ND
2023-01-12ND