Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Candlewood Park Water District

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.

 

16

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
2020ND50ND
2021ND30ND
2022ND30ND
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
2020-01-27AW01792-POCSND
2020-08-27AW16649-POCSND
2020-08-27AW16651-POCSND
2020-09-22420-181340-1-POCSND
2020-09-22420-181340-2-POCSND
2021-04-21AX07611-POCSND
2021-04-21AX07609-POCSND
2021-10-06AX20377-POCSND
2022-06-16AY10393-POCSND
2022-06-16AY10389-POCSND
2022-12-08AY21972-POCSND
2023-05-02CN95930-POCSND
2023-05-02CN95932-POCSND
2023-06-07AZ10246-POCSND
2023-06-07AZ10248-POCSND
2023-12-18AZ22799-POCND