Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

St Albans Water Department

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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 Lab ID Result
2018-01-161801-01210-001ND
2018-01-161801-01210-002ND
2019-01-221901-01623-001ND
2019-01-221901-01623-002ND
2020-01-132001-00985-001ND
2020-01-132001-00985-002ND
2021-01-112101-00903-001ND
2021-01-112101-00903-002ND
2022-01-192201-01530-001ND
2022-01-192201-01530-002ND
2023-02-212302-04849-002ND
2023-02-212302-04849-001ND