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3.0 Project Description <br />Avion Project SEIR <br />Page 3-3 <br />Table 3-1 <br />Total Project Square Footage <br />Product Type <br />Square Footage of <br />Product Type Number of Units <br />Total Square Footage of <br />Product Type <br />Product 1 2,289 20 45,780 <br />Product 2 2,303 20 46,060 <br />Product 3 2,446 22 53,812 <br />Product 4 2,479 22 54,538 <br />TOTAL 84 200,190 <br /> <br />3.3.2 Natural Open Space <br />The project would preserve approximately 23.75 acres of natural open space on-site through <br />dedication to the City’s MHPA. The on-site MHPA open space would include preservation of two <br />open space lots (Lots A and B), which would be dedicated in fee title to the City of San Diego. Within <br />Lots A and B to be dedicated in fee title to the City, the project applicant would retain ownership of <br />the 50-foot radii lots surrounding the storm drain outlets and grant them to the City through a <br />Covenant of Easement. <br />3.3.3 Grading and Retaining Walls <br />Implementation of the VTM would result in approximately 296,000 cubic yards of cut (maximum <br />depth of 52 feet) and 296,000 cubic yards of fill (maximum depth of 64 feet) over the approximately <br />15.69-acre graded area, resulting in a net balance of soils on the project site. Manufactured slopes in <br />excess of 10 feet in height at a 2:1 gradient would be created on the perimeter of the development <br />area boundary. Cut slopes would have a maximum height of 52 feet and 2:1 gradient. All the <br />manufactured slopes would be contoured. <br />The project would construct retaining walls with a total length of 2,038 feet and a maximum height <br />of 55 feet, 7 inches. Retaining walls would be constructed along both sides of the drainage that <br />would be crossed by Winecreek Drive, on the western project boundary adjacent to the row of <br />detached multi-family residential units accessed by Private Drives B and C, and on the eastern <br />project boundary downslope from Private Drive E (see Figure 3-3). <br />3.3.4 Water, Sewer, and Stormwater Systems <br />A summary of the proposed water, sewer, and stormwater improvements for the project is provided <br />below. <br />3.3.4.1 Water <br />Water service would be provided by the City of San Diego Public Utilities Department. The project <br />would connect to existing water service facilities within the Heritage Bluffs residential development <br />to north.