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Phase I Environmental Site Assessment r COPPER ENTERPRISES/LOCKEFORD WINERY 12470 Locke Road, Lockeford, California .a 1.0. INTRODUCTION AND BACKGROUND Advanced GeoEnviron mental,Inc.(AGE)has been retained by Ms.Laura Maffei of Pacific State :3 Bank to perform a Phase I Environmental Site Assessment of the site located at 12470 Locke Road ` (subject property),Lockeford,California.The purpose ofthe Phase I Environmental Site Assessment was to identify and assess environmental characteristics of the subject property that could lead to i liability in the event of ownership,that could have a potential impact on property value,or that could .� impact the present or future use of the subject property. I The subject property is located southwest of the town of Lockeford on the southeast side of Locke Road, in an area of low to moderate topographic relief approximately 2,000 feet west of State Highway 88. Figure I .shows the setting of the property, which is in the southwest quadrant of Section 36,Township 4 North,Range 7 East,Mount Diablo Base and Meridian(Figure 1 -Location Map,7.5 MinuteUSGS Topographic Series,Lockeford Quadrangle,California-San Joaquin County, 1965,photo revised 1979).Elevation ofthe property is approximately 100 feet above mean sea level. The regional slope of the area is relatively gentle and dips toward the southwest. The subject property includes a cluster of seven buildings and associated structures of the former Lockeford Winery'at the northern end, and an approximately 1,000- by 600-foot vacant lot immediately south of the building complex. The property is recorded as Parcel 9,Page 32,Book 51 (APN 051-320-09) of the San Joaquin County Tax Assessor's Office (Figure 3). The prominent :4 features on the subject property are depicted in Figure 2; photographs of the property are provided in Appendix A. j r Land use of the surrounding sites is primarily commercial and industrial. 2.0. REGIONAL GEOLOGIC/IIYDROGEOLOGIC SETTING i The subject property is situated within the Great Valley Geomorphic Province of California,a large, 3 p p .� elongate, northwest trending, asymmetric structural trough. The Great Valley Province has been filled to its present elevation with thick sequences of sediment ranging in age from Jurassic to .3 Recent,creating a nearly horizontal alluvial plain, extending from the Tehachapi Mountains in the . south to the Klamath Mountains in the north. The western and eastern boundaries of this province are comprised of the California Coastal Ranges and the Sierra Nevada, respectively. Rocks composing the basement complex of the province have not been completely defined but are believed to be metamorphic and igneous in origin. The northern and southern portions of the Great Valley Province have been designated the San Joaquin and Sacramento Valleys, respectively. .Advanced GeoEnvironmentsl,Inc. a 9 e