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A water system of storage tanks,booster pump, and pipelines with a capacity of 20.0 mgd has been approved and partially built to serve buildout under the MHMP.The WSMP Update(2003)includes information on size and location of this programmed infrastructure within the MHMP area.Downstream water conveyance trunk pipelines have already been developed in Central Parkway and DeAnza Boulevard, extending from the WTP to just north of Mascot Boulevard(Figure 3-13).These pipelines have been developed to their maximum capacity(i.e.,sized ` to serve all of Mountain House, including the College Park project).These pipelines would be extended to the College Park project site under the proposed project to provide potable water service to the project,and one or two new pump stations would be provided, as required,to pump water from the WTP to the project site(Figure 3-13).In addition,two water storage tanks would be provided under the proposed project on the college property, one for Zone 1 and one for Zone 2,to serve the proposed project(Figure 3-13).With development of these proposed water pipelines,pump stations, and storage tanks,MHCSD has determined that adequate water infrastructure would be provided to serve the proposed project. A less-than-significant impact would occur. BBID operates the raw water infrastructure to the WTP. hi anticipation of the expansion of the WTP,the raw water pump station and the pipeline to the WTP have been sized for a maximum capacity of 20 mgd of raw water. Per BBID contracts with MHCSD,BBID will add new pumps along the pipeline,as required,to serve the MHMP, including the proposed project.Therefore,sufficient raw water infrastructure will be in place to allow BBID to convey adequate water to the WTP to serve the proposed project. A less-than-significant impact would occur. The environmental impacts associated with the water conveyance,pump,and storage infrastructure to be developed as part of the proposed project(Figure 3-13)are addressed in the appropriate sections of Chapter 4. Although the phased expansion of the WTP required to serve the proposed project and the balance of the MHMP has already been approved and represents a separate project under CEQA,the significant environmental impacts associated with the development of the WTP to its maximum capacity are summarized below for information purposes from the Mitigated Negative Declaration prepared for Use Permit 97-13. ► The project would incrementally or substantially increase water discharged into Old River as a result of tertiary treatment. The project would remove prime foraging habitat for the Swainson's hawk Construction and development of the water-treatment plant would impact an adjacent small wetland on the northern boundary of the project site. ► The project would store potentially hazardous chemicals on-site,and the project would increase the amount of chemical-laden sludge disposed of in the water-treatment process. ► The project would construct large water storage tanks that would be visible from several sides of the project site, especially from Byron Road. ► The project would use outdoor lighting for water-treatment plant operations and security. ► Construction of a water-treatment plant would allow for future construction of the MHMP community. All above impacts as identified in the Mitigated Negative Declaration prepared for Use Permit 97-13 were considered"potentially significant unless mitigation incorporated"before implementation of mitigation measures and"less than significant"after implementation of mitigation measures. Mitigation Measure 4.5.2: Public Utilities—Demand for Water Infrastructure. No mitigation is required. College Park at Mountain House Specific Plan III Draft EIR EDAW San Joaquin County 4.5-33 Public Utilities