trans-1,2-Dichloroethylene

Waterford Township

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
2013	N/A	0	N/A
2014	ND	18	ND
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	ND	8	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
2014-03-05	LLF10999	ND
2014-03-05	LLF11000	ND
2014-06-04	LLF20945	ND
2014-06-04	LLF20944	ND
2014-06-04	LLF20947	ND
2014-06-04	LLF20946	ND
2014-06-04	LLF20943	ND
2014-06-04	LLF20942	ND
2014-06-04	LLF20939	ND
2014-06-04	LLF20941	ND
2014-06-04	LLF20940	ND
2014-06-04	LLF20936	ND
2014-06-04	LLF20938	ND
2014-06-04	LLF20937	ND
2014-09-10	LLF37550	ND
2014-09-10	LLF37549	ND
2014-10-09	LLF48781	ND
2014-12-09	LLF48780	ND
2018-03-06	LLH68969	ND
2018-03-06	LLH68968	ND
2018-05-16	LLH80892	ND
2018-05-16	LLH80891	ND
2018-07-19	LLH94051	ND
2018-07-19	LLH94052	ND
2018-12-06	LLI18228	ND
2018-12-06	LLI18229	ND