Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

South Middleton Twp Water Authority

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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND90ND
2022ND90ND
2023ND60ND

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
2018-05-158052993-01ND
2018-05-158052993-02ND
2018-05-158052993-03ND
2019-05-149052836-02ND
2019-05-149052836-03ND
2019-05-149052836-01ND
2020-05-1422355416.00ND
2020-05-1422355395.00ND
2020-05-1422355374.00ND
2021-02-1724007049.00ND
2021-02-1724007001.00ND
2021-02-1724007025.00ND
2021-05-1824579628.00ND
2021-05-1824579677.00ND
2021-05-1824579653.00ND
2021-08-1725164845.00ND
2021-08-1725164894.00ND
2021-08-1725164870.00ND
2022-05-1726788395.00ND
2022-05-1726788444.00ND
2022-05-1726788420.00ND
2022-08-2327587373.00ND
2022-08-2327587374.00ND
2022-08-2327587372.00ND
2022-11-1627948222.00ND
2022-11-1627948246.00ND
2022-11-1627948197.00ND
2023-03-3028650579.00ND
2023-03-3028650628.00ND
2023-03-3028650604.00ND
2023-05-2529247716.00ND
2023-05-2529247715.00ND
2023-05-2529247714.00ND