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K L E I N F E L D E R <br /> 2 SITE SETTING <br /> 2.1. SITE LOCATION <br /> The site is located at 2000 West Turner Road, which runs east to west between Interstate 5 and <br /> 1 State Highway 99 in Lodi, California The location of the existing UST discussed in Section 3 of <br /> this report is situated in an area south of the main office budding and in the east-west trending <br /> roadway north of Budding No 86 (See Plate 1) A second UST was previously located adjacent <br />' to the existing tank The underground storage tank (UST) area is overlain with concrete and <br /> asphalt <br /> 2.2. CURRENT SITE USE <br /> The subject site is currently an operating facility utilized by General Mills Inc The site consists <br /> of an office, food product preparation facilities, fuel storage areas, silos, and parking areas, etc , <br /> for food production purposes <br /> 2 3. GEOLOGY AND HYDROGEOLOGY <br /> The site lies within the Great Valley Geomorphic Province of California The valley is <br /> approximately 400 miles long and averages about 50 miles wide, and comprises about 20,000 <br /> square miles The valley has been filled with a thick sequence of marine and non-marine <br /> sediments from the late Jurassic to Holocene The uppermost strata of the Great Valley <br /> represent, for the most part, the alluvial, flood, and delta plains of two major rivers (Sacramento <br /> and San Joaquin Rivers) and their tributaries <br />' The valley deposits are derived from the Coast Ranges to the west and the Sierra Nevada to the <br /> east Granitic and metamorphic rocks outcrop along the eastern and southeastern flanks of the <br /> valley Marine sedimentary rocks outcrop along most of the western, southwestern, southern, <br /> and southeastern flanks, and volcanic rocks and deposits outcrop along the northeastern flanks of <br /> the valley The valley geomorphology includes dissected uplands, low alluvial plains and fans, <br />' river flood plains and channels, overflow lands, and lake bottoms <br /> According to San Joaquin County Flood Control and Water Conservation District (SJCFCWCD) <br />' maps, dated Spring 1998, depth to groundwater in the vicinity of the site is approximately 35 feet <br /> below ground surface (bgs) SJCFCWCD groundwater maps indicate groundwater flow <br /> direction is towards the south Groundwater flow directions may significantly fluctuate due to <br /> groundwater pumping, rainfall, groundwater recharge, etc Therefore, based on these factors, <br /> changes in groundwater depth, gradient and flow direction may vary at this site <br />' 18748 T02/ST02R420 Page 2 of 11 <br /> ©2002 Kleinfelder, Inc August 29,2002 <br />