The 31st Contracting Squadron requires the supply and delivery of one (1) combination sewer cleaner truck to Aviano Air Base Italy. All solicitation information can be found in the following attachmen... The 31st Contracting Squadron requires the supply and delivery of one (1) combination sewer cleaner truck to Aviano Air Base Italy. All solicitation information can be found in the following attachments: Combined Synopsis Solicitation Combination Sewer Cleaner Truck Attachment 1 – Technical Specifications Combination Sewer Cleaner Truck Attachment 2 – Price Schedule Attachment 3 – Prior Experience