Laserfiche WebLink
GRANITE CONSTRUCTION COMPANY <br /> WKA No 2088 06 <br /> October 12, 1994 <br /> Page 2 <br /> asphalt batch plant, the western portion is occupied by a construction maintenance facility and <br /> offices (Plates 2 and 3) <br /> The site and surrounding areas are relatively flat, surface elevation on site is approximately 18 <br /> feet above sea level The site is bounded to the north and south by open fields and to the west <br /> by South Harlan Road, a north-south trending Southern Pacific Railroad easement bounds the site <br /> to the east <br /> Physiographic and Hydrogeologic Setting <br /> The site is located in the central portion of the Great Valley geomorphic province of California <br /> The Great Valley is bounded by the mountains and foothills of the Sierra Nevada Range to the <br /> east and the California Coast Ranges to the west The Geologic formations of the Great Valley <br /> are typified by thick sequences of alluvial sediments deposited during the filling of a large ancient <br /> basin The 1985 United States Geological Survey (USGS) "Geologic Map of the Late Cenozoic <br /> Deposits of the Sacramento Valley and Northern Sierra Foothills, California," shows the site to <br /> be underlain by Holocene age basin deposits These deposits consist primarily of fine-grained silt <br /> and clay <br /> The site lies within the San Joaquin River Ground Water Basin (California Department of Water <br /> Resources, 1986) Ground water is estimated to range from 10 to 25 feet below grade and varies <br /> in flow from a northeasterly to a northwesterly direction, based on our experience in the area <br /> PREVIOUS WORK <br /> One waste oil, two diesel and two unleaded gasoline USTs were removed from the site on April <br /> 22, 1992 The former waste oil UST was located easterly of the shop building which is located <br /> easterly of the above ground diesel tanks <br /> `O% <br /> WALLACE KUHL <br /> H<ryl,dl��k= £r ASSOCIATES INC <br />