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5.ENVIRONMENTAL CHECKLIST MOUNTAIN HOUSE NEIGHBORHOODS K AND L INITIAL STUDY 16.UTILITIES AND SERVICE SYSTEMS Water distribution pipelines to serve Neighborhoods K and L would be installed along the neighborhood streets and easements prior to building any houses. Neighborhoods K and L would be served by extending distribution pipelines from the existing treated water main on Byron Road. Water distribution system improvements would be constructed in conjunction with the grading for the street system and before streets are paved. Construction impacts would include noise and dust from construction equipment and traffic impacts associated with removal of spoils and delivery of pipe, valves, and fire hydrants. These impacts would be temporary,extending only through the period of construction. Construction impacts were discussed in the 1994 MEIR. No additional construction-related mitigation measures are necessary. Demand for Water Service. As already noted,the currently proposed development would allow a similar number of dwelling units and about 190 more 'obs than anticipated with SPIT. The proposal would not create substantial new 1 P P P water demand beyond that evaluated in the SPII Initial Study. The water demand projected for all of SPII was 5,462 acre-feet per year(afly). The demand for the project would not create a need for new or expanded water facilities beyond those previously evaluated. An SB 610 CEQA analysis and an SB 221 Subdivision Analysis for Water Supply have both been completed and certified by the San Joaquin County Board of Supervisors for the entire SPII area. These analyses confirmed that an adequate water supply was available for all of SPIT. Wastewater Facilities. The MHCSD would provide wastewater service to the i project. To serve the proposed project site, additional pipeline extensions from the existing backbone line located north of Byron Road, including some lift stations,would be installed and extended. Smaller sewer lines would be constructed under roadways to serve individual homes and businesses. Local sanitary sewers to serve Neighborhoods K and L would be installed along the streets and easements prior to building any houses. Due to elevation ' variations, local sewers may convey wastewater by gravity flow to a set of three -_ pump stations. These stations would operate in series to lift or pump the wastewater through force mains to sewers at higher elevations. Eventually, theI wastewater would be pumped up to the existing 30-inch main trunk sewer north ? of the WWTP. Construction of the sewers would be done in conjunction with the grading for they street system and before the streets are paved. Construction impacts would include noise and dust from construction equipment and traffic impacts associated with removal of spoils and delivery of pipe and pre-cast concrete manholes. These impacts would be temporary, extending only through the period of construction. Construction impacts were discussed in the 1994 MEIR and the SPIT Initial Study. No additional sewer construction-related mitigation I measures are necessary. f �r 5-200