Specifications include, but are not limited to: Vendor shall acid wash boiler #2 located at the East Moline Powerhouse to remove mineral and chemical build up in the boiler. Contractor shall provide all materials, equipment, chemicals and staff necessary to acid wash boiler No 2 located on the facility premises in a safe and appropriate manner. Contractor shall remove the hard scale by punching the internal drum and tubes and remove any build up on plates that bolt inside the drum and boiler assembly and remove. Contractor shall perform the accepted methods for acid washing a gas fire boiler and manufactures specifications recommended for cleaning the boiler and following all safety sanitation guidelines defined by OSHA and EPA in this type of procedure.