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2 . 0 INTRODUCTION 2 . 1 PROJECT SUMMARY The proposed action to be considered in this Environmental Review Document is the proposal by E1 Rancho Rock and Sand, Inc. to expand and develop quarrying activities into the southern portion of their lease holding. The current lease holding encompasses 480 acres, essentially the western 3/4 of Section 1, T.2 N. , R.9 E. , M.D.B. & M. Refer to Figure 1 for a Location Map of the site. The current valid Excavation Permit, EP 81-9, addresses approximately 67. 1 acres in the northern portion of the lease holding. E1 Rancho Rock and Sand, Inc. proposes to expand the existing permitted area to include the entire 480 acre lease holding. The proposed expansion will necessitate the minor addition of equipment to the processing plant and the construction of short haul roads or conveyors from the southern portion of the property. The proposed expansion will create a. potential increase in maximum haul traffic. Project expansion will allow continued development of the quarrying operation within reserves that contain a higher quality raw material with a lower clay content. San Joaquin County requires a Conditional Use Permit (CUP) and County-approved Reclamation Plan for continued development of the quarrying operation beyond that allowed by the current CUP EP 81-9. Waste Discharge Requirements may be imposed by the Regional Water Quality Control Board. An Authority to Construct must be obtained from the Air Pollution Control District. A Streambed Alteration Permit may be required for the upgrading of haul roads and construction of conveyors from the southern portion of the lease holding. 2 .2 APPLICABLE CEQA REGULATIONS This section addresses compliance with the requirements of the California Environmental Quality Act (CEQA) , and the public review process. The information in this report is intended to supplement the San Joaquin County Planning Department's initial project review, and to provide information needed for the County to prepare its Initial Study for the E1 Rancho Rock and Sand, Inc. Quarry Conditional Use Permit. The California Environmental Quality Act (CEQA) (Public Resources Code Sec. 21000 et seq. ) sets forth guidelines for protection of the quality of the environment and prevention of environmental damage. The purpose of CEQA is to inform government decision-makers and the public about (1) potential significant environmental effects of proposed activities, (2) ways in which environmental 8 t CONDOR