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1 <br /> RECLAMATION PLAN <br /> I. DESCRIPTION OF ENVIRONMENTAL SETTING <br /> The Vernalis Sand and Gravel Plant property is in the southern portion San Joaquin County <br /> near the intersection of Interstates 5 and 580. The property encompasses 501.01 acres within <br /> { the northern triangle of the intersection. Vernalis is approximately 5 miles to the northeast of <br /> the project. (See Plate 1) The outline of the Vernalis property is shown in Plate 2. A vicinity <br /> map of the southeastern portion of the San Joaquin County is also shown. Assessor parcel <br /> numbers for the Vernalis Sand and Gravel Plant property is 265-120-06,13,16 & 265-08- <br /> 10,11,12. <br /> r <br /> HISTORY <br /> �. The site currently being mined, and the property west of 1-580 was originally used as grazing <br /> land. As the need for construction material developed during the construction of the Interstate <br /> Highway System, Cal Trans developed the property as a rock and sand quarry. The property <br /> was purchased by Brown in 1979 and subsequently permitted in 1986 as the Brown Quarry. <br /> PRESENT USE <br /> The property to the north of the active quarry is presently an almond orchard, and has been <br /> intensely farmed since the construction of the Delta Mendota canal in the 1960's. <br /> �'- Present land uses in the area include mining, agricultural and cattle grazing. The land surface <br /> and native vegetation in this area have been extensively disturbed by past shallow mining <br /> excavations in the stream channel and by overgrazing of livestock. <br /> .r A. Maps - See Attached <br /> B. Geology <br /> The project site is located in the Resources Sectors C2, C3, C4, and B3 as defined in the <br /> SMARA EIR #9, Designation of Regionally Significant Construction Aggregate Resources in <br /> 'c the Stockton-Lodi Production Consumption Region. Resource Sector C covers a 900 acre <br /> portion of the alluvial fan formed by Hospital Creek along the western edge of the Valley. <br /> The fan is on the eastern flank of the Diablo Range and was formed by streams flowing north- <br /> eastward from the base of the mountains. The material in the fan is composed of San Luis <br /> Ranch alluvium and Los Banos alluvium, which contain reworked sediments derived from <br /> older alluvial fan deposits. The unit is approximately the same age as the late Pleistocene <br /> Modesto and Riverbank Formations that occur on the east side of the Valley in the Sierran <br /> Foothills. <br /> The course clasts are largely composed of metagraywacke, chert, and quartz with smaller <br /> amounts of quartzite, schist, sandstone, basalt, and andesite. Maximum rock size in this <br /> material is 10 inches with approximately 40 percent in the plus one inch size range. <br /> F <br /> r\ <br />