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CHANGE ORDER BACK-UP DOCUMENTATION FIN No.: 431759-2-54-01 Change Order No.: 01 Page 1 of 8 Contract No: IRC -0853 Amount $863,685.50 and 87 Days Issue A — Add Time, Time Related Costs and Extra Work Costs for Soil Injection Operation Entitlement Analysis The purpose of this Change Order is to increase the Contract Time by 87 days for reasons beyond the Contractor's control, in accordance with General Condition 12.02 of the Contract. This Change Order will also provide compensation to the Contractor for Delay Damages in accordance with General Condition 12.06 of the Contract. Further, this Change Order will account for the costs associated with the actual work effort, all totaling $403,538.00. During construction of the 43rd Ave. & SR60 Intersection Improvements project, an existing drainage trunk line located under EB SR60 was found to have leaks after air voids were discovered between the pipe and existing roadway surface. Further investigations of the leaks and resulting voids were performed by FDOT personnel via GPR scanning below the roadway surface, and Contractor personnel via CCN recordings inside the existing pipe. As a result of these investigations, the FDOT decided to have the County's contractor perform Polyurethane injection to fill the voids and stabilize the surrounding soils beneath the roadway surface. The work includes MOT setup for each shift, CCTV filming each shift, standby vacuum truck and Polyurethane injection (per Uretek proposal dated June 10, 2022) for three specific areas identified in the GPR scanning. All work will be performed in accordance with Developmental Special Provision SECTION 173 SHALLOW SUBSURFACE POLYURETHANE INJECTION (attached as Exhibit D). Since this was aresult of existing conditions not noted in the plans, these costs are unforeseen and consequently, the contractor is entitled to additional compensation. When the Contractor found the voids, they stopped work on April 26, 2022, and submitted a notice of delay and intention to claim for additional costs. Subsequently, the FDOT engaged a consultant to perform ground penetrating radar (GPR) to determine the extent of the voids on April 27, 2022, with a report date of May 11, 2022. After much discussion between the FDOT and the County, an agreement was reached to perform urethane soil injection in the void areas found through the GPR process and the Contractor was directed to perform the work. After the agreement was reached, the Contractor engaged a subcontractor for the soil injection. Due to prior commitments, the subcontractor was not able to mobilize to the project until July 18, 2022. After mobilizing to the project, the subcontractor diligently pursued the soil injection and completed the work on July 27, 2022. The Contractor remobilized to the project and began productive work on August 2, 2022. Time Analysis A time impact analysis was performed by the Engineer which determined there was an impact of 87 days to project completion date — see Exhibit C. The Contractor requested 87 days. It was agreed to grant 87 calendar days. i M,