Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Hca Roan Filter Plant

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND20ND
2021ND40ND
2022ND10ND
2023ND50ND

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
2018-10-308111439-01ND
2019-10-249105284-01ND
2020-06-1722436149.00ND
2020-10-1923201730.00ND
2021-01-0723731030.00ND
2021-04-0824266635.00ND
2021-07-0124848278.00ND
2021-10-2025424848.00ND
2022-05-2626669368.00ND
2023-02-2828541383.00ND
2023-05-0228921489.00ND
2023-05-2428921743.00ND
2023-08-2229719406.00ND
2023-11-1430089973.00ND