Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Pennsylvania American Water Company Yardley

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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND70ND
2021ND70ND
2022ND80ND
2023ND70ND

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
2018-04-1139062701ND
2018-08-1440630801ND
2018-08-1440630201ND
2019-04-0443649801ND
2019-08-2245815901ND
2019-08-2245816001ND
2020-01-0621487041.00ND
2020-04-0922005634.00ND
2020-04-0922005613.00ND
2020-07-0922591151.00ND
2020-08-0622780444.00ND
2020-08-0622780465.00ND
2020-10-1223166534.00ND
2021-01-0623695988.00ND
2021-04-0624230998.00ND
2021-04-0624230977.00ND
2021-07-0724812022.00ND
2021-08-0225004506.00ND
2021-08-0225004527.00ND
2021-10-0425387739.00ND
2022-01-0325926367.00ND
2022-03-0926272432.00ND
2022-04-0626447227.00ND
2022-04-0626447252.00ND
2022-07-1227020335.00ND
2022-08-0427216467.00ND
2022-08-0427216416.00ND
2022-10-1327625720.00ND
2023-01-0328156604.00ND
2023-04-1728684431.00ND
2023-04-1728684410.00ND
2023-07-1229285450.00ND
2023-08-0929478518.00ND
2023-08-0929478497.00ND
2023-10-1129870745.00ND