Specifications include, but are not limited to: The City of Columbia Utilities Department is seeking a contractor(s) for services performing water main installation and/or relocation. Water distribution main installation shall be limited to the installation of distribution mains sixteen (16) inches or less in diameter. The contractor shall work under the supervision of the Director of Utilities, or his duly authorized representative(s), who shall assign work orders and inspect the work. All materials salvaged or removed shall be returned to the City as directed by the City representative. Salvaged material shall be completely disassembled, sorted in lots of like components, and placed in boxes or other suitable containers with the quantity of the items shown on a tag or other appropriate marking, and shall be returned to the City’s storeroom at 1514 Business Loop 70 East, or other location as designated by the City representative. All materials salvaged or removed that City representative does not direct to be returned shall be disposed of by and at the expense of the contractor.