Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Erie City 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND70ND
2019ND50ND
2020ND30ND
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
2018-01-083849232ND
2018-02-203876401ND
2018-05-083931239ND
2018-05-213941491ND
2018-08-064012683ND
2018-08-214030524ND
2018-11-054111318ND
2019-01-234181796ND
2019-05-214302831ND
2019-09-104415500ND
2019-11-189112945-01ND
2019-11-184489097ND
2020-03-1921954377.00ND
2020-05-1822336334.00ND
2020-09-0923112173.00ND
2021-04-0624363626.00ND
2021-05-1924561030.00ND
2022-04-1226577554.00ND
2022-05-1726770587.00ND
2023-04-0428825962.00ND
2023-04-1828826016.00ND