Material Recovery Facility Retrofit - Removal of equipment floor pits and modification and install of new pits; removal of structural columns and install of new structure; install of cast-in-place concrete walls (interior); New door opening in existing concrete building wall; new janitor closet; new vestibule from plant to break room. New lighting and power connections for equipment. Demolition of existing HVAC equipment and replacement (RTUs, ventilation fans, etc.) Relocation of water heater.