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3. PROJECT DESCRIMON the plant facilities and office during the construction phase and provide water supply during the — operation of the project. Grid power will be supplied by connecting to existing power at the intersection of South Costa — Ranch and Blewett Roads. Service will be underground on-site and a transformer will be located next to the aggregate processing site. Fuel for the asphalt plant will be provided by existing natural gas service. The Project would also utilize diesel fuel and gasoline for vehicle fuel and — back-up power generation. There would be two 10,000 gallon above-ground diesel fuel tanks, and one 3,000 gallon above-ground gasoline tank. There is no public sewer serving the project site. A new septic tank would be installed within the plant site to service the office area and another tank would be installed to service the relocated house and bam. The existing septic tank/leach fields serving the house and bam would be — removed during mining excavation. Power,fuel and water usage are discussed below in Section 3.6.3. — SITE DRAINAGE All disturbed surface runoff would either be directed to silt ponds or contained within the mining excavations. No separate dedicated storm water retention ponds are proposed. The overall mining would be self-contained, meaning that surface drainage would be directed to the open pits. As mining commences at the site,all storm water drainage would be directed to the operating pits. Water would be directed to the operating pits through a series of berms,ditches, pipes, and regrading to prevent erosion and sedimentation. Upon final reclamation, site drainage would drain towards the northeast and southeast corners where it would first pond in two separate sumps,then percolate into the ground. DUST CONTROL During site preparation and grading, at least one water truck will provide dust suppression by watering internal roads, areas in advance of stripping and at placement of fill for berms and _ structure pads. Site preparation,stripping and grading will be conducted primarily during the wet season when the soil moisture is at its highest. The San Joaquin Valley Unwed Air Pollution Control District(SJVUAPCD)rule 8020(Fugitive Dust Requirements for control of fine particulate matter equal to or less than 10 microns (PMIO)from Construction,Demolition, Excavation and Extraction Activities)will apply during the project's construction phase. The mining operation will regulated by SJVUAPCD Rule 8020. Dust suppression for the operations will include the watering of mining areas and haul roads by water trucks as necessary to reduce dust. Approximately 80,000 gallons per day of water will be used for dust suppression. — In the mining operations the water will be applied by a water truck at the pit face and along the haul roads. Spray bars will be located at the feed hopper and at the field conveyor transfer points. RMC Pacific Vemalis Quarry Mining and Reclamation Project 3-14 ESA/703015 Admitustrmive Dratl EIR Match 2004