Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Tarentum Borough 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.

 

7

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
20211.60 ppb21ND - 3.20 ppb
2022ND10ND
2023ND10ND

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
2018-11-1518K1486-01ND
2019-09-2619I2837-01ND
2020-08-1122899403.00ND
2021-06-1424735473.003.20 ppb
2021-11-1625676346.00ND
2022-05-2426747872.00ND
2023-02-2128435029.00ND