Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Ponderosa S/d

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
2018ND10ND
2019ND10ND
2020ND30ND
2021ND40ND
2022ND40ND
2023ND40ND

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
2018-04-12CB03472-01RE1ND
2019-04-16CC04280-01ND
2020-04-01CD03181-01ND
2020-08-05CD12136-01ND
2020-10-07CD13750-01ND
2021-01-13CD18731-01ND
2021-04-21CE02821-01ND
2021-07-14CE07607-01ND
2021-10-13CE12470-01ND
2022-01-26CE17926-01ND
2022-04-20CF02420-01ND
2022-08-08CF07143-01ND
2022-10-05CF12757-01ND
2023-01-25752-1983-1ND
2023-04-2637729_23-20811ND
2023-08-1537729_23-45203ND
2023-10-1837729_23-59288ND