Seminole County Landfill Gas Expansion January 25, 2012 news by COMANCO COMANCO > COMANCO BLOG > news > Seminole County Landfill Gas Expansion COMANCO is proud to announce our award of the Seminole County Landfill Gas Expansion project scheduled to begin March 1st. We are excited to continue our work with Seminole County and look forward to a safe and productive project. Previous Post Next Post