trans-1,2-Dichloroethylene

South Bayou Macon Ws

NOTE: South Bayou Macon Ws purchases water from Turkey Creek Water System which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by Turkey Creek Water System.

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	N/A	0	N/A
2015	ND	2	ND
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	ND	2	ND
2019	N/A	0	N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2015-06-16	35193581002	ND
2015-06-16	35193581003	ND
2015-06-16	35193581004	ND
2015-06-16	35193581002	ND
2015-06-16	35193581003	ND
2015-06-16	35193581004	ND
2015-07-07	35196543001	ND
2015-07-07	35196543001	ND
2018-04-18	35387355001	ND
2018-04-18	35387355002	ND
2018-04-18	35387355003	ND
2018-04-18	35387355001	ND
2018-04-18	35387355002	ND
2018-04-18	35387355003	ND