T BAILEY INC 4/8/2018 Change Order 1

Project: WFP East Clearwell Roof Replacement Change Order No.01 Change Order Effective Date: 3/15/18 Justification: The project scope included repairs to the surface of the concrete floor slab in the East Clearwell. The design anticipated that approximately 25% of the floor slab would require resurfacing. After our design-build contractor began work repairing the floor surface, it was discovered the delamination of the concrete floor surface was spread throughout the entire floor slab. WCD-003 covers the additional costs to increase the repair area from 25% to 100% of the floor slab. Work Change Directive— No. 004 Repair Concrete Spalls on North Wall of the East Clearwell: WCD —No. 004 is a lump sum revision of$6,577.06. WCD-004 did not add any calendar days. Justification: After the existing roof was removed, two concrete spalls were found on the north wall of the east clearwell. The spalls occurred at an expansion joint and were caused by past settlement of two wall sections. Due to the past settlement, the top sections of the walls pushed against each other causing the concrete to crack and spall. The spalled area was covered by the roof and was not visible until the roof was removed. The depth of the spalls was approximately half the thickness of the wall and required repairs. WCD-004 covers the additional costs to saw-cut, remove the damaged section, dowel and epoxy new reinforcing steel and replace the damaged concrete with new concrete. Work Change Directive— No. 005 — Replace the Existing Suction Pipe for the Recovered Water Sample Pump: WCD-005 is a lump sum revision of$1,526.60. WCD-005 did not add any calendar days. Justification: The existing sample pump suction pipe had obstructions inside the pipe. WFP personnel planned to replace the pipe. Our design-build contractor was working in the same area where the suction pipe was buried. Our contractor was replacing a section of the recovered water pipe where the sample pump's suction pipe tied into. In order to replace the recovered water pipe, our design-build contractor had a section of the sample pump's suction pipe exposed. The work our design-build contractor was doing was time sensitive. By having our design-build contractor replace the sample pump's obstructed pipe, we avoided having multiple crews working in the same small area. Our design- build contractor was able to replace the sample pump pipe while they also worked on replacing a section of the recovered water pipe, thus saving time. WFP East Clearwell Roof Replacement March 15, 2018 WO#UP3662 006363 -4