Laserfiche WebLink
Metadata
Document management portal powered by Laserfiche WebLink 9 © 1998-2015 Laserfiche. All rights reserved.
L "Old <br /> L Mr. Lloyd Gums A91701.OIB <br /> LJanumy 15, 1996 Page 2 <br /> • The soil samples were analyzed for key PPCs; and <br /> LThis report was prepared summarizing the field and laboratory analytical findings. <br /> L3.0 BACKGROUND <br /> ` A description of the site, the geologic and hydrologic characteristics, and the project history <br /> are summarized in the following subsections. <br /> L 3.1 Site Description: The site is located in Lodi, California at 303 South Cherokee <br /> Lane in the northeast quarter of Section 12,Township 3 North,Range 6 East, Mount Diablo <br /> Baseline and Meridian(San Joaquin County Assessor's parcel number 047-353-08). Drawing <br /> L1 is a site location map. The site elevation is approximately 50 feet above mean sea level. <br /> The Cherokee Service Center currently consists of a single story service station building,two <br /> L overhead canopies and three fuel dispenser islands. Formerly three USTs, fuel dispensers, <br /> and product delivery plumbing were also maintained on the site. Portions of the site had <br /> been landscaped and paved for parking. Drawing 2 is a site plan showing the former UST <br /> and fuel dispenser island locations. <br /> 3.2 Geologic and Hydrologic Characteristics: The following subsections summarize the <br /> Lgeology and hydrology of the Lodi area. <br /> 3.2.1 Geolop-v: The site is in the central portion of the San Joaquin Valley within the <br /> L southern portion of the Great Valley geomorphic province of California. The Great Valley <br /> is a nearly flat northwest to southeast trending structural basin approximately 450 miles long <br /> by 50 miles wide. The Great Valley has been filled with a sequence of older to younger <br /> L alluvium of Pliocene to Holocene age which overlie sedimentary rocks of Cretaceous to <br /> Tertiary age. These sedimentary units, in turn, overlie a crystalline basement of Paleozoic <br /> and Mesozoic metamorphic and igneous rocks. The shallow subsurface geology in the site <br /> Lvicinity is a heterogeneous mix of gravel, sand, silt, and clay (Hackel, 1966). <br /> 3.2.2 HydroLQU: Sediments containing fresh groundwater in the San Joaquin Valley are <br /> Llargely unconsolidated silts and sands derived from river channel, flood plain, and alluvial <br /> fan deposits of Pliocene to Recent age (Davis and others, 1959). According the State of <br /> California, Department of Water Resources,San Joaquin District,the depth to groundwater <br /> Lin the vicinity of the site was approximately 45 feet below site grade (BSG) in the Spring <br /> of 1991. Local groundwater flow and water table elevation may be influenced by pumping <br /> L of water wells and recharge from various sources. The effect of these influences on <br /> groundwater beneath the site is beyond the scope of this investigation. <br />