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prominently tall spreading deciduous trees. During summer, they would provide windbreaks and shade relief, thereby reducing electricity needs for air conditioning; during winter, they would facilitate sun exposure to each home, thereby reducing natural gas demands. Residential Population Projection. The proposed development would result in an onsite Y population of approximately 530 persons, based upon the calculations shown in Table 3 below. Table 3: Po ula#ion Projection Land Use Dwelling Units a Persons per dwelling unit Population R-M 99 2.7 b 267 R-MH 130 2.Ob 260 Total 229 — 527 Notes: a Does not include second unit dwellings. b Specific Plan III,Table 3-13:Housing Analysis Infrastructure. o Roadways. The major roadways that would serve the proposed development are Mountain House Parkway and Grant tine Road, which are located to the east and south of the subject site, respectively. De Anza Boulevard, Prosperity Street, Hydrangea Glen, and Teixeira Avenue would provide direct access to the development: (De Anza Boulevard (a minor arterial), Hydrangea Glen (a local street), and Prosperity Street and Teixeira Avenue (collectors) have not yet been constructed.) o Drainage. The storm drain system within the proposed development would be constructed in the street rights-of-way prior to paving. The system would consist of gravity-flow pipelines (i.e., storm drains)with lateral pipes to catch basins (drop inlets) installed at intervals along the street gutters. Storm drains would exit the project site at the future Hydrangea Glen and De Anza Boulevard and would connect to the existing downstream storm drain system in Neighborhood F. In addition to storm drains, the existing system includes Water Quality Basin No. 1 that removes storm water pollutants prior to discharge to Mountain House Creek and Old River. In keeping with the policies of the 1994 Master Plan, a post-development Storm Water Master Plan (SWMP)would be prepared by the applicant that includes provisions addressing: (1)public education and outreach on stormwater impacts; (2)public involvement/participation; (3) illicit discharge detection and elimination; (4)construction site storm water runoff control; (5) post construction storm water management; and (6) pollution prevention/good housekeeping for municipal operations. The applicant would submit the SWMP to the County when submitting project improvement plans. The County and the MHCSD would review these plans prior to Final Map approval. o Water Supply. Water supply would be provided by the MHCSD from the water treatment plant located on the north side of Byron Road. Pipelines would be extended south from the existing water distribution system in Neighborhood F along De Anza Boulevard and the future Prosperity Street. Connecting water pipelines would also be installed in the future Teixeira Avenue and Hydrangea Glen. The water distribution pipelines within the proposed development would be constructed in the street rights-of-way prior to paving. o Wastewater. The MHCSD would provide wastewater service. Wastewater would be collected in sanitary sewers, treated at a plant owned and operated by the MHCSD north of Byron Road, and disposed of on land or discharged to Old River following treatment and disinfection. Sanitary sewers would exit the project site along the future Hydrangea Glen and De Anza Boulevard and would connect to the existing downstream sanitary 7