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k'q KLEINFELDER <br /> 2. SITE SETTING <br /> 21 SITE LOCATION <br /> The site Is located at 2000 West Turner Road, which runs east to west between <br /> Interstate 5 and State Highway 99 in Lodi, California The location of the existing <br /> underground storage tank (UST) discussed in Section 3 of this report is situated in an <br /> area south of the main office building and In the east-west trending roadway north of <br /> Building No 86 (See Plate 1) A second UST was previously located adjacent and east <br /> to the existing tank The UST area is overlain with concrete and asphalt <br /> 22 CURRENT SITE USE <br /> The subject site is currently an operating facility utilized by General Mills Inc The site <br /> consists of an office, food production preparation facilities, fuel storage areas, silos, and <br /> parking areas, etc , 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 <br /> 20,000 square miles The valley has been filled with a thick sequence of marine and <br /> non-marine sediments from the late Jurassic to Holocene The uppermost strata of the <br /> Great Valley represent, for the most part, the alluvial, flood, and delta plains of two <br /> major rivers (Sacramento and San Joaquin Rivers) and their tributaries <br /> The valley deposits are derived from the Coast Ranges to the west and the Sierra <br /> Nevada to the east Granitic and metamorphic rocks outcrop along the eastern and <br /> southeastern flanks of the valley Marine sedimentary rocks outcrop along most of the <br /> western, southwestern, southern, and southeastern flanks, and volcanic rocks and <br /> deposits outcrop along the northeastern flanks of the valley The valley geomorphology <br /> includes dissected uplands, low alluvial plains and fans, river flood plains and channels, <br /> overflow lands, and lake bottoms <br /> According to San Joaquin County Flood Control and Water Conservation District <br /> (SJCFCWCD) maps, dated Spring 1999, depth to groundwater in the vicinity of the site <br /> is approximately 35 feet below ground surface (bgs) SJCFCWCD groundwater maps <br /> indicate groundwater flow direction is south by southwest Groundwater flow directions <br /> • may significantly fluctuate due to groundwater pumping, rainfall, groundwater recharge, <br /> etc <br /> 28209 T09/STO5R1323/DH Iv Page 2 of 12 <br /> 0 2005, Kleinfelder, Inc October 21, 2005 <br />