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Analysis of Monthly Billing for a GDU Combined Water and Bever Customer at Current and Proposed Rates Monthly Usage Cost at *Cost at GDU Current Rates Proposed Rates *Cost at Consultant Recommendation 0 Gals(Min) $18.35 $71.60 $38.26 5,000 Gals $42.30 $90.35 $81.81 7,000 Gals $52.36 $98.33 $99.71 *Both GDU Proposed and Consultant Recommended Rates are subject to Public Hearing. General Development Utilities, Inc., in May 1993, advised the County that it now wishes to sell its water and wastewater utility system located in the Vero Highlands/Shores areas. The Indian River County utility service area surrounds the GDU franchised area. The County utility system currently supplies water to GDU to provide water service to the franchised area. The County's policy has been to acquire such privately -held utilities and to expand its regional and subregional water and wastewater facilities. Acquisition of this system will assist the County in implementing this policy. ANALYSIS As of December 31, 1992, the GDU system served approximately 1,393 water equivalent residential units (ERUs) and 1,324 wastewater ERUs, with an additional 123 ERUs of water and 88 ERUs of sewer capacity reserved. The projected buildout of the project.is 3,724 ERUs. Analysis of ERU9 Current and Projected at Buildout The Wastewater Treatment Plant is designed for 850,000 gallons per day (GPD) capacity. It is operated as a conventional activated sludge plant with aerobic digester. The Department of Environmental Protection permitted capacity of the plant is 450,000 GPD, due to effluent disposal capacity. To increase the permitted capacity of the plant to the design capacity of 850,000 GPD will require an increase in the effluent disposal capacity. The projected costs for the facilities to increase the effluent disposal capacity are included in the revenue requirements.for the system. The Wastewater Collection System consists of approximately 104,902 feet (19.86 miles) of 4"-16" pipe and nine lift stations as listed on page S-6 and 6(A) of the 1992 Annual Report (attached). The system data indicates that the wastewater collection system is installed to serve an additional 515 lots. The Net Sewer Utility Plant in Service as of December 31, 1992, as reported in the 1992 Annual Report, is shown as follows: 2'5 L_ JUL 20 i m, BOOK 90 PAGE 28 ERUs/Current BRUs/Lines Available Projected BRUs/Buildout ERUs To Buildout Water 1,516 __[515 677 3,724 2,331 Sewer 1,412 13,724 2,400 The Wastewater Treatment Plant is designed for 850,000 gallons per day (GPD) capacity. It is operated as a conventional activated sludge plant with aerobic digester. The Department of Environmental Protection permitted capacity of the plant is 450,000 GPD, due to effluent disposal capacity. To increase the permitted capacity of the plant to the design capacity of 850,000 GPD will require an increase in the effluent disposal capacity. The projected costs for the facilities to increase the effluent disposal capacity are included in the revenue requirements.for the system. The Wastewater Collection System consists of approximately 104,902 feet (19.86 miles) of 4"-16" pipe and nine lift stations as listed on page S-6 and 6(A) of the 1992 Annual Report (attached). The system data indicates that the wastewater collection system is installed to serve an additional 515 lots. The Net Sewer Utility Plant in Service as of December 31, 1992, as reported in the 1992 Annual Report, is shown as follows: 2'5 L_ JUL 20 i m, BOOK 90 PAGE 28