Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Clare, City of

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.

 

40

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
20200.146 ppb92ND - 0.730 ppb
20210.156 ppb113ND - 0.580 ppb
20220.149 ppb102ND - 0.830 ppb
20230.0550 ppb101ND - 0.550 ppb

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
2020-01-08ND
2020-01-08ND
2020-01-08ND
2020-04-14ND
2020-04-140.730 ppb
2020-07-010.580 ppb
2020-07-01ND
2020-10-14ND
2020-10-14ND
2021-01-050.580 ppb
2021-01-05ND
2021-01-05ND
2021-01-05ND
2021-04-070.580 ppb
2021-04-07ND
2021-06-03ND
2021-07-07ND
2021-07-070.560 ppb
2021-10-05ND
2021-10-05ND
2022-01-10ND
2022-01-10ND
2022-01-10ND
2022-01-10ND
2022-04-06ND
2022-04-060.660 ppb
2022-07-13ND
2022-07-130.830 ppb
2022-10-05ND
2022-10-05ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-04-050.550 ppb
2023-04-05ND
2023-07-05ND
2023-07-05ND
2023-10-04ND
2023-10-04ND