Approval of Change Order #17 – Boomerang Corporation - North Park Road Improvements — E-7

City of Tiffin - Iowa Change Order Details 52-7662-615 Description STP-U-7662(615)--70-52, Letting Date- December 17, 2024 Prime Contractor Boomerang Corp. 13225 Circle Dr Suite A, Anamosa, IA 52205 Anamosa, IA, IA 52205 Change Order 17 Status Pending Date Created 07/20/2026 Type Non-Substantial Summary Add items and change items to incorporate a sanitary sewer service extension to Daytona estates located on the SW corner of Mopar Drive and North Park Rd. This sanitary was intended to be installed in a previous project but was never constructed. Change Order Description 8240: Add item for 2504-0200408 SANITARY SEWER SERVICE STUB, POLYVINYL CHLORIDE PIPE (PVC), 8 IN. 8250: Add item for 2529-8174050 PATCH SUBDRAIN 8260: Add item for 6100-2503050 {EXTRA WORK} TYPE C-1 CONNECTION 0080: Increase quantity for 2115-0100000 MODIFIED SUBBASE Awarded Project Amount $5,458,891.91 Authorized Project Amount $5,561,949.41 Change Order Amount $23,777.27 Revised Project Amount $5,585,726.68 Change Order Details: 07/23/2026 52-7662-615 Page 1 of 5