Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Arbor Hills Water Works

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND80ND
2021ND20ND
2022ND20ND
2023ND50ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 60 ppb

The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for trans-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
2020-01-15CF13838-POCSND
2020-01-17CF15441-POCSND
2020-01-17CF15444-POCSND
2020-01-17CF15442-POCSND
2020-01-17CF15443-POCSND
2020-05-14AW08956-POCSND
2020-05-14AW08958-POCSND
2020-10-06AW19319-POCSND
2021-05-18AX09492-POCSND
2021-05-18AX09490-POCSND
2022-04-08AY05847-POCSND
2022-04-08AY05849-POCSND
2023-01-1923A1937-23-POCSND
2023-01-1923A1937-20-POCSND
2023-01-1923A1937-08-POCSND
2023-01-1923A1937-17-POCSND
2023-12-19AZ22865-POCND