1,1-Dichloroethylene (aka 1,1-DCE; 1,1-Dichloroethene; Vinylidene dichloride)

GENERAL INFORMATION
1,1-Dichloroethylene is an organic liquid with a mild, sweet, chloroform-like odor. Virtually all 1,1-dichloroethylene is used in making adhesives, synthetic fibers, refrigerants, food packaging and coating resins such as the saran types. The major source of 1,1-dichloroethylene in drinking water is discharge from industrial chemical factories.

HEALTH EFFECTS
Some people who drink water containing 1,1-dichloroethylene well in excess of the maximum contaminant level (MCL) for many years could experience problems with their liver.

Standard value 1: 
7.00
Standard units 1: 
ppb
Input units: 
ug/L
ppb
Contaminant group: 
VOC
Standard type 1: 
MCL
Action is recommended 1: 

MCL ADVISORY - ACTION IS HIGHLY RECOMMENDED
1,1-Dichloroethylene levels were detected in your water sample to exceed the maximum contaminant level (MCL).

Action is optional 1: 

ACTION IS OPTIONAL
1,1-Dichloroethylene levels were detected in your water sample but do not exceed the maximum contaminant level.

Typical range in Ohio: 
detection suggest human source
Major sources in drinking water: 
Discharge from industrial chemical factories
Treatment options: 

TREATMENT OPTIONS
Granular Activated Carbon (GAC) or Powdered Activated Carbon (PAC) are considered the best available technologies (BAT) for treatment of many organic contaminants including organic pesticides, volatile organic compound (VOCs), and Trihalomethanes (THMs) (by-products of chlorination). Treatment can be at the tap (called point of use or POU) or the entire house.

Website resources: 

WEBSITE RESOURCES

Fact sheets: 

FACT SHEETS