EIF Renewable Energy Holdings, a leading landfill gas-to-energy company, and Seneca Meadows, Inc., an environmental award winning waste management company, today announced the opening of Seneca Energy II, a landfill gas-to-renewable natural gas facility located at the Seneca Meadows Landfill in Seneca Falls, NY. The companies celebrated the opening of the facility at a ribbon cutting ceremony on July 22nd.