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3.11 PROJECT GRADING Grading would be approximately balanced on-site,and would include the moving of approximately 700,000 cubic yards of cut and approximately 700,000 cubic yards of fill. 3.11.1 PROPOSED GRADING NEIGHBORHOODS AIB Most of Neighborhoods A/B was or is currently in agricultural,dairy or open space uses.The land area is predominately flat at approximately I%cross-grade and is generally suitable for development in its current grade conditions, with only finish grading required.Grading and drainage patterns are generally from southwest to northeast,and infrastructure systems have been designed accordingly.However, several land forms on the property may require greater than fine grading.The Delta College site is generally located within a depressed area created by Caltrans in the 1960s,which used the site as a borrow pit for construction of I-205 and I-580. This feature is made more pronounced by an existing ridge condition directly north of the college site that may require substantial grading to allow circulation access and pad development. It is anticipated that this knoll area development will be at a 20 to 30 foot higher elevation than the adjacent college and residential parcels to the south and east. A conceptual grading plan has been developed in the College Park at Mountain House Specific Plan III to allow for development in this area with potential infrastructure and circulation access.Other less substantial grading requirements include the filling and removal of the existing irrigation ditch network through the site,while still maintaining off-site connections, and the removal of berms along Grant Line Road, predominately at the northwest corner of the existing residential neighborhood.It is the intent of the applicants to provide balanced cut-and-fill grading for all areas of Neighborhoods A/B. 3.11.2 PROPOSED GRADING IN NEIGHBORHOOD D The College Park portion of Neighborhood D has no significant grading issues.The area consists of pasture and fallow and productive agriculture lands with an average cross-slope of I%to 2%draining from southeast to northwest and requiring only fine grading. 3.12 PROJECT PHASING As shown in Figure 3-17,the College Park project would be developed in four phases(Phases I through IV)over 20 years,with construction commencing in 2005 and ending in 2025.Phase I,from 2005 to 2008,would include residential, school, and neighborhood park development on the GNK,LLC parcel, and residential development on the InvestWest Matthews Land,Inc. and Pegasus parcels.Phase II,from 2008 to 2012,would include residential development on the Hernandez,Mendoza,and Buck parcels, and school and community park development on the GNK,LLC parcel.Phase III, from 2012 to 2015,would include commercial, office,and industrial development on the GNK,LLC parcel. Phase IV, from 2015 to 2025,would include residential development in Grant Line Village,if any.Development of Delta College would occur during all four phases.Table 3-5 provides more precise phasing information for the college. The utility and roadway infrastructure described earlier in this chapter would be developed,as needed,to serve each phase of the College Park project.Project phasing is shown in Figure 3-17.Utility phasing is shown in Figures 3-12 through 3-14. College Park at Mountain House Specific Plan III Draft EIR EDAW San Joaquin County 3-43 Project Description