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INTER -OFFICE MEMORANDUM <br />DEPARTMENT OF PUBLIC WORKS <br />DIVISION OF ENVIRONMENTAL SERVICES <br />TO: Members of the Board of Public Works <br />Michael Schmidt, Assistant City Attorney Public Works <br />Theresa Heffner, Clerk <br />FROM: Jacob M. Klosinski, P.E., Assistant City Engineer <br />SUBJECT: 117-059B South Well Field Water Treatment Plant and Distribution <br />System Improvements — Contract B — Water Main (PROJ00000082) <br />Agenda Request — Change Order No. 2 and Project Completion Affidavit <br />DATE: January 7, 2025 <br />The Division of Engineering and Division of Water are issuing this Agenda Request to the Board of <br />Public Works for the approval of the Project Completion Affidavit for Project No. 117-059B South <br />Well Field Water Treatment Plant and Distribution System Improvements — Contract B — <br />Watermain. <br />117-059B Contract Cost Summary <br />Original Contract Sum: $1,597,000.00 <br />Contract Sum with previous Change Order: $1,620,606.65 <br />Net Change by previously authorized change orders: $ 23,606.65 <br />Current Change Order: ($ 35,798.28) <br />Final contract cost: $1,584,808.37 <br />Total percent change for entire project: -0.76% <br />Change Order No. 2 includes adjustment to final amounts for unit price items: <br />• Compacted Aggregate No. 53 — Deduct <br />• HMA Surface, Type B, 9.5mm — Increase <br />• HMA Base, Type B, 25mm — Increase <br />• 30-inch Casing with 20-inch Carrier, Granular Backfill — Decrease <br />• 24-inch Watermain, Ductile Iron, CL50, Trench Spoil Backfill — Increase <br />• 20-inch Watermain, Ductile Iron, CL50, Trench Spoil Backfill — Increase <br />• 16-inch Watermain, Ductile Iron, CL 50, Trench Spoil Backfill — Increase <br />• 12-inch Watermain, Ductile Iron, CL50, Trench Spoil Backfill — Increase <br />• 6-inch Watermain, Ductile Iron, CL50, Trench Spoil Backfill — Decrease <br />• 20-inch Butterfly Valve and Box w/ Joint Restraints — Increase <br />• 16-inch Butterfly Valve and Box w. Joint Restraints — Increase <br />• 24-inch Ductile Iron Mechanical Joint 45 Degree Bend w/ Joint Restraints — Decrease <br />• 20-inch Ductile Iron Mechanical Joint 45 Degree Bend w/ Joint Restraints — Increase <br />• 20-inch Ductile Iron Mechanical Joint 11.25 Degree Bend w/ Joint Restraints — Decrease <br />• 24-inch x 20-inch Ductile Iron Mechanical Joint Reducer w/ Joint Restraints — Increase <br />• 24-inch x 16-inch Ductile Iron Mechanical Joint Reducer w/ Joint Restraints — Increase <br />• 24-inch Ductile Iron Mechanical Joint Tee w/ Joint Restraints — Increase <br />