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GRANITE CONSTRUCTION COMPANY <br /> TRACY EXCAVATION EXPANSION <br /> PAGE 5 <br /> C. MINING PLAN <br /> 1. Operation Plan <br /> Granite is proposing a revised project to harvest sand and gravel from property located on the west side <br /> of the California Aqueduct (i.e. the project site). Excavation would begin on the North Side of Corral <br /> Hollow Creek as the sequence shows on the enclosed mining plan DWG-02. Excavation would occur over <br /> an approximate 6 year period. All of the excavated material would be transported to the existing <br /> processing plant located on the east side of the California Aqueduct by means of a conveyor bridge installed <br /> over the California Aqueduct. The Department of Water Resources ("DWR") has approved the location <br /> and design of this temporary installation and will issue a permit upon their review of our project's <br /> environmental clearance. <br /> 2. Topsoil <br /> Although the site has been previously mined and much of the topsoil was removed during those previous <br /> mining activities,there are still some isolated pockets of topsoils that vary in thickness up to two (2) feet <br /> in depth. Those topsoils that still remain on the project site would be initially excavated and separately <br /> stockpiled within the setback areas and on the then unexcavated areas, for use during reclamation of the <br /> project. After removal of topsoils, excavation would proceed to remove the sand, gravel, and interbedded <br /> lean clays. Lean clays encountered during excavation would be used to construct compacted clay berms <br /> along the creek, final slopes and sold as unclassified fill material. <br />