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1 <br />' Appendix A - Site Background Information <br /> AGE-NC Project No 99-0624 <br />' Page 4 of 4 <br />' have been filled to the present elevation with thick sequences of sediment ranging in age from <br /> Jurassic to present day, creating a nearly flat lying alluvial plain extending from the Tehachapi <br /> Mountains in the south to the Klamath Mountains in the north The western and eastern boundaries <br />' of this province are comprised of the California Coast Range and the Sierra Nevada Mountains, <br /> respectively <br />' Based on a General Soil Map from the San Joaquin County Soil Survey, published by the United <br /> States Department of Agriculture Soil Conservation Service in 1992, the site area is described as <br /> being within the Tokay-Acampo(TA)association The TA soils are located within low fan terraces <br />' along the Mokelumne River, and generally consist of moderate well drained, moderate coarse <br /> textured soils that are deep to a cemented hardpan The TA soils generally formed in alluvium <br /> derived from granitic rock sources <br /> I <br /> lie <br /> I <br /> I <br /> I <br /> I <br /> IAdvanced GeoEnWronmental,Inc <br />