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Total 659 100,189,000 6,644,917 797,390 92,746,693 Material Extracted equals total pit volume less overburden and topsoil SOURCE: Spinardi Associates,2004. TABLE 3-2 PROPOSED PROJECT MINING AND RECLAMATION SCHEDULE Mining Product Years to Mine Years to Mine Range of Years Range of Years Operation (Tons) (1.7 mtnstyr) (4.0 minslyr) to Mine to Reclaim Phase I 4,468,000 3 1 0 to 3 59 to 60 Phase II 11,006,000 6 3 1 to 9 4 to 12 Phase III 11,814,000 7 3 4 to 16 8 to 18 Phase IVa 5,445,900 3 1 7 to 19 58 to 60 Phase IVb 4,139,000 2 1 8 to 22 58 to 60 Phase V 16,759,000 10 4 9 to 32 15 to 33 Phase VI 21,769,000 13 5 13 to 45 18 to 46 Phase VII 8,605,000 5 2 21 to 56 23 to 57 Phase IX 5,086,000 3 1 2310 59 24 to 60 Total 99,477,900 59 25 25 to 59 SOURCE: Reclamation Plan,RMC Pacific Materials,Inc.Vernalis Quarry,October 2003 Pit Operations A 7Y:-yard excavator will excavate material from the pit and load the pit run material into 40-ton off-road haul trucks. The haul trucks will transport the pit run material to a feed hopper where the material will be dumped and fed to a series of field conveyors. The field conveyors will transport the pit run material from the pit bottom to the aggregate plant. The feed hopper and field conveyors will be moved as new phases are excavated. The series of field conveyors will be extended as the pit becomes farther from the plant. No processing of material is planned in the pit bottom. Setbacks, Slopes and Depth Temporary slopes, other than along Blewett Road, Koster Road, and South Costa Ranch Road would be mined to a 3/4:1 slope. The mining areas along Blewett Road, Koster Road, and South Costa Ranch Road and next to Hospital Creek would be mined to a 2:1 slope for slope protection near the Delta Mendota Canal and Hospital Creek and the two perimeter roads. Within two years after mining has been completed within a phase, the slope will be backfilled to 2:1 using overburden and interbedded' clays. San Joaquin County Surface Mining Ordinance 9-1415.3k requires final slopes over 50 feet in vertical distance to have terraces and terrace drainage. Minimum final slopes may be 1 112:1. In lieu of this requirement, the applicant is requesting to build final slopes to a fully engineered 2:1 (horizontal to San Joaquin County QX-01-2\Lonestar California Community Development Page 8