Agmt23 West Yost & Associates, Inc.

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REV: 06-16-23 JB EXHIBIT “A” SCOPE OF SERVICES AND FEE The tasks that the Consultant shall perform under this Agreement are described below. Task 1. Kickoff Meeting, Data Collection and Review Consultant will coordinate with HF&H to hold a project kickoff meeting to discuss project objectives, data requirements, data available and potential capacity fee calculations. The Consultant team will compile and review the existing Water System Master Plan (“WSMP”), Sewer Master Plan (“SMP”), information available for the upcoming sewer rate study, the specific plans and related utility plans for key areas of the City where growth is anticipated. The Consultant team will review the growth assumptions included in those plans as well as in other recent studies and planning documents adopted by the City. City will provide relevant background reports and data for review. Kickoff meeting assumed to be a virtual meeting. Task 1 Actions Consultant will coordinate with HF&H to prepare a kickoff meeting agenda and notes. Consultant will prepare a Data Inventory table. Task 2. Growth Impact Analysis Consultant will compile identified improvement projects for inclusion in the analysis and update capital costs to 2023 dollars. The 2011 WSMP identified the need for a new 2.0 MG tank and associated pump station in the Main City zone to meet future growth, as well as several pipelines to address future fire flow conditions. The tank sizing will be analyzed based on the latest demand projections from the 2020 Urban Water Management Plan (UWMP) and the storage sizing criteria from the 2011 WSMP. Pipeline projects identified in the WSMP will be reviewed with the City to determine relevant projects that should be included in the analysis. Consultant will work with the City to obtain and review sewer system project information to determine which capital improvement projects or portions of projects are attributable to future. Consultant will also evaluate whether capacity can be increased to serve future growth through the implementation of inflow and infiltration reduction measures. Consultant will tabulate the capital cost for replacement. Consultant will review selected projects and cost estimates with the City. Consultant will prepare capital cost estimates in 2023 dollars. For the water system, unit costs of the tank and booster pump station will be reviewed and compared with more recent tank and pump station cost data from the City and other agencies. For the sewer system, costs presented in the SMP will be escalated to 2023 dollars. If the capital improvement projects have a specific limited geographic benefit to development, then the analysis will consider whether it is appropriate to propose fee zones rather than a citywide capacity fee. ATTY/AGR.2023.117/West Yost (Nexus Fee Study) (Page 11 of 15)