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NOTICE OF PREPARATION ENVIRONMENTAL IMPACT REPORT NO. ER-96-2 On the basis of the Initial Study prepared for the project described below, the Environmental Review Officer has determined that the project may have a significant impact on the environment and hereby gives notice that an Environmental Impact Report is to be prepared in accordance with the provisions of the California Environmental Quality Act (CEQA), as amended. APPLICATION The applicant has submitted Quarry Excavation Application No. QX-94-1 to expand an existing, permitted quarry excavation. The applicant is proposing to excavate approximately 67 million tons of material in three phases over approximately 50 years. PROJECT The applicant, Brown Sand, Inc., is proposing to expand the permitted reserves of its existing sand and gravel mine in the southern portion of San Joaquin County, north of the intersection of Interstates 5 and 580. The existing sand and gravel mine has been in operation since 1986. Of the 501-acre site, approximately 283 acres will be disturbed. The applicant is proposing to excavate in three phases over a 50-year period. Excavation will continue in the existing, permitted pit, in the far southem corner of the site, to a depth of 50 feet. This pit will ultimately be filled and reclaimed to the original pre-mining grade. The proposed excavations on the remaining portion of the site will include the excavation of three large pits, approximately 150 feet deep, to be reclaimed to a final depth of approximately 100 to 130 feet. Working slopes and final slopes of these three pits will be 2:1, with no backfill required. The proposed end use after reclamation will be grazing. The site is presently used for sand and gravel mining, grazing, and orchards. Surrounding land uses include mining, agriculture (orchards and grazing), and open space. The 121-acre portion of the site west of 1-580 is shown within the boundaries of the project area as 'Reserve.' However, no disturbance of this portion of the site is proposed, and any expansion of quarry activities into this area would require additional permitting and environmental review. PROJECT SIZE The project site is a total of 501.11 acres, of which 282.7 acres will be excavated. LOCATION The project is located in the southern portion of San Joaquin County, north of the intersection of C7 states-5-and-5-89 fT-4 c. a Notice of Preparation - 1 - ER-96-2