Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Estates At Highland Ridge

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020ND60ND
20210.0833 ppb61ND - 0.500 ppb
2022ND60ND
2023ND80ND

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 Result
2018-05-22ND
2018-05-22ND
2018-05-22ND
2018-05-22ND
2018-05-22ND
2018-10-10ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-12-23ND
2020-05-14ND
2020-05-14ND
2020-05-14ND
2020-05-14ND
2020-05-14ND
2020-12-14ND
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-12-280.500 ppb
2022-06-21ND
2022-06-21ND
2022-06-21ND
2022-06-21ND
2022-06-21ND
2022-12-21ND
2023-06-26ND
2023-06-26ND
2023-06-26ND
2023-06-26ND
2023-06-26ND
2023-10-23ND
2023-12-12ND
2023-12-13ND