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Change Order Three This change order totaled $80,192 and involved constructing the concrete foundation and underground electrical connections from the existing building to the storage shed, as well as the cost of the two forklifts required to remove the shed from the shipping trailer, and mounting it to the foundation. This cost also included the concrete ramps used to access the storage shed and the transformer needed to step down the voltage of the only available, unused circuit serving the existing library to the voltage needed for the shed systems. This cost was as expected and, as stated earlier, was the reason for the relatively high contingency amount recommended at the time of award. Change Order Four This change order included six components. Two were changes/improvements to the existing plans as requested by the library staff as the project was underway: installation of a slat wall instead of reinstalling the shelving on a wall outside the remodel area (as shown on the plans) based upon a different, preferred way of displaying library material; and fabrication and installation of a heavy-duty steel railing on the edges of the ramp leading to the storage shed. This railing was thought important to avoid heavy book carts being inadvertently pushed off the edge by library staff. These two components cost a combined $19,339. Three components involved required unforeseen miscellaneous items necessary to connect the modified HVAC system in the remodeled area to the existing HVAC system. Specifically, new conduit was required for the thermostat wiring, additional modifications were required to the duct work to connect several HVAC diffusers correctly, and it was necessary to install wiring to power the variable air flow valves which control the balance of air flow in the existing library and in the remodel area. These items added $9,547 to the project cost. Finally, at the final inspection the Fire Marshal requested some modifications to the fire alarm strobe light alerting system. These changes cost a total of $2,959. These six components resulted in Change Order Four at a cost of $31,252. Change Order Five This change order had three components and increased the contract by $3,364. The first component was deductive in the amount of $3,901. This removed the work associated with the relocation of the panel and intruder alarm added in Change Order Two. When the contractor began this work, it proved more complicated than expected. It was determined that this work would best be performed by Harvey Electric, a City on- call contractor who had prior experience with how the old existing system was wired. The second component added $698 to install additional stainless steel wall corner guards in areas that were identified by the library staff as where heavy book cart use would occur. Finally, an additional cost of $6,567 was required to hire a crane and pay riggers to lift the storage shed into position because the two large forklifts that were included in Change Order Three were inadequate for positioning the storage shed in the very tight area that the shed was to be installed. There is no credit associated with not using the forklifts as they were brought on-site and were used to attempt the lift as was dictated by the City in Change Order Three. Page 4 of 5