Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

City of Hearne

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
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
2018-06-21AE31001ND
2018-06-21AE31005ND
2018-06-21AE31007ND
2018-06-21AE30999ND
2019-05-16AE66869ND
2019-05-16AE66871ND
2019-05-16AE66873ND
2019-05-16AE66875ND
2020-04-23AF07870ND
2020-06-30AF17373ND
2020-06-30AF17375ND
2020-06-30AF17377ND
2021-06-08AF56947ND
2021-06-08AF56967ND
2021-06-08AF56965ND
2021-06-08AF56957ND
2022-06-22AG01932ND
2022-06-22AG01934ND
2022-06-22AG01936ND
2022-06-22AG01938ND
2023-06-13AG44230ND
2023-06-13AG44232ND
2023-06-13AG44234ND
2023-07-27AG50404ND