FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

KLEINFELDER 2 SITE SETTD G S 2.1. SITE LOCATION The site is located at 200 North Beckman, which runs parallel and east of Highway 99 and just south of Highway 12 eastbound (Victor Road), in Lodi, California. The site is situated in Subsection M of Section 6, Township 3 North, Range 7 East, Mount Diablo Baseline and Meridian according to the Lodi North 7.5 Minute Topographic Map (1968, Photorevised 1976). 2.2. CURRENT SITE USE The subject site is a San Joaquin County Mosquito & ector Control District (SJC/MVCD) facility. The site includes a working office, open sh d, former wash down area, and non operating small retention basins. A former Shell Gas Station is located north of the site and a trucking yard east of the site. CalTrans maintenance station is located south of the site. Beckman Road is located adjacent and west of the property beyond which is Highway 99. 2.3. GEOLOGY AND HYDROGEOLOGY The site lies within the Great Valley Geomorphic Province of California. The valley is approximately 400 miles long and averages about 50 miles wide, and comprises about 20,000 square miles. The valley has been filled with a thick sequence of marine and non-marine sediments from the late Jurassic to Holocene Periods. The uppermost strata of the Great Valley represent, for the most part, the alluvial, flood, and delta plains of two major rivers (Sacramento and San Joaquin Rivers) and their tributaries. The valley deposits are derived from the Coast Ranges to the west and the Siena Nevada to the cast. Granitic and metamorphic rocks outcrop along the eastern and southeastern flanks of the j valley. Marine sedimentary rocks outcrop along most of the western, southwestern, southern, and southeastern flanks; and volcanic rocks and deposits outcrop along the northeastern flanks of the valley. The valley geomorphology includes dissected uplands, low alluvial plains and fans, river flood plains and channels, overflow lands, and lake bottoms. According to San Joaquin County Flood Control and Water Conservation District (SJCFCWCD) maps, dated Spring 1999, depth to groundwater in the vicinity of the site is approximately 65 feet bgs. SJCFCWCD groundwater maps indicate groundwater flow direction is south to southwest. Groundwater flow directions may significantly fluctuate due to groundwater pumping, rainfall, groundwater recharge, etc. Therefore, based on these factors, changes in groundwater depth, gradient and flow direction may vary at this site. Please see site specific data based on installation of groundwater monitoring wells in Section 4.4. i 36274/ST03RI919 Page 3 of 19 Z 2004 Kleinfelder, Inc. January 5,2004 }