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Analysis Background The project site is currently being utilized as a walnut orchard. George Reed, Inc., operates a quarry adjacent to and immediately south of the proposed quarry. This quarry was approved under QX-90-1 and is scheduled to complete reclamation of the entire site by the end of 2001. A ten percent expansion of QX-90- 1 was approved under IP-00-5 in October of this year. IP-00-5 permitted an additional 12 acres, shown on the site plan, for excavation and allowed the operator to continue excavation while the subject permit is being processed. Sand and gravel excavated from the existing quarry is processed at an existing plant located on the north bank of the Mokelumne River, which is operating under existing Quarry Excavation Permit No. QX-84-2. Project Description This application is for a Quarry Excavation Permit to excavate approximately two million tons of sand and gravel from 69.5 acres of a 79-acre project site, in two phases. Excavation and site reclamation are scheduled to be completed in 12 years. The maximum depth of excavation is approximately 30 feet. Reclaimed slopes are proposed to be at 2 to 1 or flatter. The excavation is located in the southwest quadrant of Mackville Road and the Mokelumne River, north of the Town of Clements. Excavation will proceed from the south to the north in approximately five-acre increments. Sand and gravel excavated from the site will be processed at the existing plant on the north bank of the Mokelumne River and will be transported via trucks on an existing bridge. Geology The site is identified by the Department of Conservation, Division of Mines and Geology (DMG), as a Mineral Resource Zone—3 (MRZ—3)of potential significance. The project site lies within the ancient flood plain of the Mokelumne River and contains alluvial deposits of soil, sand, gravel,and rock. General Plan and Zoning The General Plan designation for the site is General Agriculture (A/G), and the zoning is AG-40 (General Agriculture, 40-acre minimum parcel size). A Quarry Excavation Permit may be approved in the AG-40 zone if the property to be excavated contains substantial deposits of mineral resources. The proposed project complies with all General Plan and Development Title provisions. Department of Parks and Recreation The proposed quarry is located adjacent to Stillmann Magee County Park, which is located north of the project site. Excavation is proposed within 25 feet of the park boundary. The Department of Parks and Recreation responded to this application with several concerns including noise, dust, slope stability, and aesthetics. The applicant has proposed the following mitigation measures: 1. All equipment used at the site will be equipped with state-of-the-art noise shielding and muffling devices to minimize noise from the operation of the equipment. 2. Dust suppressants or water will be used on all haul roads and within the excavation site as needed to prevent dust from the equipment operation. San Joaquin County QX-99-2\Reed Community Development Page 3