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2. Revenue Sufficiency Analysis <br />• 2.2 SOURCE DATA <br />The following sub -sections present the key source data relied upon in updating the RSA. <br />1.2.1 Beginning Fund Balances <br />The County's FY 2023 Annual Comprehensive Financial Report (ACFR) and supporting trial balance were <br />used to establish IRCDUS' beginning FY 2024 (October 1, 2023) balances. Schedule 2 of Appendix A <br />presents a summary of the beginning fund balances for each of IRCDUS' funds. <br />2.2.2 Revenues <br />IRCDUS' generates revenues primarily through monthly user rates from retail and bulk customers, impact <br />fees, other miscellaneous fees, and interest on fund balances. Rate revenue projections were based upon <br />actuals for FY 2023 and an evaluation of FY 2024 year-to-date revenue collected, adjusted annually to <br />reflect assumed customer growth, changes in demand, and assumed rate revenue adjustments. Service <br />availability (fixed charges) rate revenue for water, sewer, and reclaimed water service were projected based <br />on growth in ERUs within the system, while volumetric rate revenue was projected based on associated <br />growth of water demand and associated billed sewer volumes from new customer connections. <br />• Impact fees are one-time charges paid by a new customer for their share of system capacity. Such fees <br />are the mechanism by which growth can "pay its own way" and minimize the extent to which existing <br />customers must bear the cost of facilities that will be used to serve new customers or customers requiring <br />additional capacity. Projected impact fee revenues reflect the assumed growth in new customers and <br />associated ERUs growth along with the recommended changes to IRCDUS' water and sewer impact fees <br />as documented in the impact fee study performed by Stantec in parallel with this Study. <br />Projections of all other non -rate revenues were based upon IRCDUS estimates for FY 2024 and reflect the <br />amounts within the preliminary FY 2025 Budget8, excluding interest income, which was calculated annually <br />based upon projected average fund balances and assumed interest rates. The projection of revenues is <br />provided on Schedule 3 of Appendix A. <br />IRCDUS' expenditures during the projection period consist of all operating and maintenance (O&M) <br />expenses, minor capital outlays, debt service expenses, and cash funding of capital improvements. <br />Operating Expenses <br />8 Developed by IRCDUS staff to include proposed changes to miscellaneous services charges as described herein. <br />0 <br />a <br />M <br />