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typically fluvial origins, laid down by southwest-trending streams carrying andesitic debris from the Sierra Nevada. The units are stratified, but discontinuous over large areas , with cut and fill channeling. Mudflow deposits derived from the Sierra Nevada occur as interbeds. The Laguna Formation overlies the Mehrten Formation, and is truncated above by the Arroyo Seco Gravel. The Laguna Formation is characterized by beds of arkosic alluvial gravel, sand and silt. Pebbles and cobbles of quartz and metamorphic fragments dominate the gravelly units, but the matrix of the gravel and the Laguna ' s finer grained sediments are arkosic, in contrast to the andesitic deposits of the underlying Mehrten Formation. The San Luis Ranch Alluvium is comprised of fine to coarse-grained fan, mudflow, terrace and floodplain deposits. Overburden in the Qroiect site area consists of the Redding Soil Series, a gravelly loam with cobble-gravelly surface textures. This soil has a USDA Capability Rating of Class IV. This soil has been characterized as a red, acid, iron-silica hardpan, with thick continuous clay coatings on ped surfaces. Topsoil will not be removed from the project site. The northern portion of the project site consists of moderately to steeply rolling topography which slopes away northerly toward the Calaveras River. The southern portion of the project site consists of flat to gently rolling topography intersected by low-lying swales and drainage courses. Excavation from the northern half of the site has resulted in the removal of the rolling hilltops. Excavation from the southern portion, of the site is anticipated to take place as an open pit/gravel-sand pit operation. The topography of the site is illustrated on the U.S. Geological Survey 7 1/2 Minute Quadrangle Map of the Valley Springs Southwest Quad. Elevations on the property range from approximately 180 feet above sea level in the northwest corner of the site to approximately 320 feet above sea level in the southeast corner. 12 . Environmental Description - Briefly describe the environment of site and surrounding area. Include existing area land use, soil, vegetation, ground water elevation, surface water characteristics, average annual rainfall and other factors pertaining to environmental impacts and their mitigation and reclamation: The dominant plant community on the property is non-native grassland Additional plant communities represented include northern vernal pool and Swale and riparian scrub. Much of 3 *%� CONDOR