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Exhibit A — Scope of Work Indian River County Department of Utility Services Wabasso Wastewater Repump-to-Inline Conversion, Project ID 21.25.519 Preliminary Design, Design, Permitting and Bid Phase Services September 2, 2025 PROJECT UNDERSTANDING Indian River County Department of Utilities Services (IRCDUS) owns and operates the Wabasso Water Reclamation Facility. The treatment system has been out of commission for several years, and the site strictly operates as a re -pump facility for domestic wastewater flows. Domestic wastewater from two separate forcemains cascade into the existing surge tank (open tank structure) and is repumped via duplex submersible pump arrangement (each pump rated for 495 gpm) through a 16 -inch forcemain that routes southbound on Old Dixie Highway to the Gifford Wastewater Treatment Plant. Nine (9) additional pump stations discharge into the 16 -inch forcemain downstream of this station. The pumps are initiated through level control floats and Across -The -Line (ATL) starters. Much of the existing treatment infrastructure at the Wabasso Water Reclamation Facility has deteriorated due to age and lack of use. The cascading forcemains entering the old surge tank has resulted in corrosion of nearby structures and odor issues. There is also significant grease build-up in the holding tanks that is causing operations to utilize blowers to mitigate. Furthermore, the existing site has several safety issues pertaining to the catwalks, gratings, handrailings and other walking -working surface components that need to be addressed for staff safety. There is a proposed site to be developed adjacent to the site and IRCDUS desires to implement improvements to the existing site and convert the wastewater re -pump station to be an inline pump station in order to contain the odors. The general scope will include construction of an inline booster pump station equipped with Variable Frequency Drives to account for wide range of flows and an allowance for additional pumps to be added in the future for elevated capacity. The station will require, per FDEP regulations, a permanent standby diesel driven generator that will provide backup power when utility power is lost. Additionally, IRCDUS desires to construct a building to house the proposed pumping units and the electrical equipment. The following scope is provided to perform hydraulic modeling, design, permitting and bid phase professional services associated with the Wabasso Inline Booster Pump Station (WIBPS). SCOPE OF SERVICES Task 1— Preliminary Engineering & Due Diligence The Consultant shall develop an estimate of the probable cost (EPC) for the Build phase of the project, including contractor, owner direct purchase (ODP), and other direct costs (ODC). At the onset of the Design phase, the Consultant shall review the IRCDUS budget for the project and provide an opinion of its "reasonableness" relative to the scope of the project and the Consultant's understanding of the project. Consultant will prepare a list of data to be collected by IRCDUS that is to be utilized for calibration of the hydraulic model and design of the station. It is assumed that this information will consist of three (3) months of operating data used for the analysis and design. Task schedule is contingent upon receipt of this data to execute subsequent tasks. Consultant will review and evaluate data provided. Consultant will visit each of the nine (9) sewer pump stations and perform drawdown testing to better define flow rates from each of the station when analyzing capacity of the 16 -inch force main. Consultant will provide up to K:\WPB_Civil\General\Black\Florida\IRCU\NWWTP Inline BPS\20250813 - WIBPS Scope.docx Page 1