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` decrease in service as the City expands. All existing and future facilities will meet or exceed the minimum requirements established by the State of California Office of Drinking Water. Tbis demand will be met by the collection of fees through the PFFD, and the infrastructure built and dedicated by the developers for their projects will put in place the improvements necessary to accommodate the growth as it occurs. 6. The City's Public Facilities Financing Plan has assigned costs to the anticipated water facility improvements and establishes a set of infrastructure fees adequate to finance or serve as a basis V for financing necessary improvements.The PFFP is the vehicle the City will use to provide all the needed facilities to accommodate the full build out of the City. ` General Plan build-out and associated expansion of the City water well system would increase demands on the underlying groundwater system. Based on projected water demands, new annual demands could amount to an additional 11,000 acre-feet by 2040; combined with existing usage of about 6,000 acre-feet, total annual water demands would amount to about17,000 acre-feet annually. About 60 percent of this demand would rely on the ground water system, about 10,000 acre-feet annually. Despite increases in groundwater demand for urban development purposes, future impacts on the groundwater system are expected to be minimized as a result of the City's �- adopted Groundwater Preservation Program as well as its ability to use SSJID water as a non- potable water source. The City of Ripon is also researching and contemplating the feasibility of connecting to the South San Joaquin Irrigation District's Surface Water Supply project to help �. supplement the City's future potable water demands. The City has a master plan for expansion of the potable water system to meet the present and future demands of the community. Expansion will consist of additional wells and above ground storage capacity to ensure an adequate supply of potable water. The City plans to construct 2 new elevated storage tanks, the fast around 27,000 population and the second at around 39,000.The ` City anticipates that 14 new domestic water wells will be required to serve future demands during the planning period covered by the Water Master Plan 2040. These wells will be required with every 2,000 increment increase in population to keep up with future demands. d. Wastewater Collection and Treatment Determinations The City of Ripon's Wastewater Treatment Facility has met and expects to continue to meet annual wastewater collection and treatment demand within the SOI in compliance with the Central Valley Regional Water Quality Control Board's Waste Discharge Requirements. Growth in the SOI will increase the overall demand on the wastewater collection and treatment facility in the city. Future growth in accordance with build out of the SOI is expected to generate the typical amount of treatment needs associated with the type of urban development that has occurred in the past. According to the Wastewater Treatment Plant Facility Plan (March 3, 2009) the City's wastewater treatment facility can support a population of about 20,000 within the SOI, which is L within the 10-year sphere horizon of the SOI. The City anticipates that the existing treatment facility will continue to be in service until such time as upgrades and/or new facilities are needed to ensure that wastewater collection and treatment match urban growth. Phasing and exact timing of expansion and/or additional facilities to accommodate additional growth has not been determined, however improvements and expansion to the Wastewater Treatment Facility must take place prior to the City's population reaching 20,000 which is approximately slated to happen around 2017. Any improvements and/or expansion to the existing facility will likely require higher treatment, which will also meet anticipated discharge -3-