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Consent Item ?P Indian River County, Florida Department of Utility Services Board Memorandum Date: September 29, 2023 To: Indian River County Board of County Commissioners Through: John A. Titkanich, Jr., County Administrator Sean C. Lieske, Director of Utility Services From: Howard G. Richards, PE, Manager, Capital Projects Prepared by: Robert J. Tobar, EI, Utility Design Engineer Subject: Bowman Consulting Group, LTD. Work Order 14 Amendment 1— North County 24 -Inch Force Main Replacement Background: Indian River County Department of Utility Services (IRCDUS) manages lift station 203, which is located at the decommissioned North Wastewater Treatment Facility (NWWTF). Lift Station 203 receives sewage from a 24 -inch ductile iron force main that runs west to the facility from Old Dixie Highway. The 24 -inch force main is a high-value asset, carrying sewage from Indian River County's north wastewater service area directly to lift station 203, then pumped to the IRCDUS Central Wastewater Treatment Facility (CWWTF). During a recent repair of the 24 -inch force main, it was discovered that the pipeline is significantly corroded and determined that the likelihood of failure is very high. In addition, the consequences of failure include significant damage to private property thus exposing IRCDUS to significant financial risk. It was determined that the optimum solution to mitigate the high risk of failure of the 24 -inch force main, is to undertake a capital project to do a complete replacement on a fast-track basis. On February 21, 2023, the Board of County Commissioners (BCC) approved Work Order (WO) 14 to Bowman Consulting Group, LTD. (Bowman) in the amount of $88,230.00 to provide design, bid support, and construction management services during construction (SDC) for replacement of the 24 -inch force main. WO 14 was executed under Bowman's CCNA 2018 contract, renewed and extended in 2021. Discussion: As noted above, the project to replace the 24 -inch force main is being done on a fast-track basis (i.e., expedited schedule) due to the high financial risk of failure. During a design constructability review, it was determined that changing the new force main alignment, by moving it approximately 50 -feet south of the existing location, would avoid conflicts with Red Stick Golf Course and allow construction to commence sooner (i.e., reduce timeline to complete). This, in turn, requires an easement dedication to Indian River County, which will require an additional scope of services by Bowman. Page 1 of 2 51