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^/ U ^��� ~�'&=��8.���� �~�^U Inc.� Unnn Thorpe "�� xn » noo�� <br /> 351N. Beckman Road 0 P.O. Box 357 0 Lodi, CA 95241 <br /> (209) 368-6175 NN (209) 462-4581 ~» <br /> Contractor's License #495h99 <br /> July 8, 1993 <br /> San Joaquin Health Services <br /> 1601 E. Hazelton Ave. <br /> P. O. Box 2009 <br /> Stockton, CA 95201 <br /> RE: WORK PLAN FOR OVER EXCAVATION/RESAMPLE <br /> 1. A. Owner of property: Wm. C. Anderson <br /> B. Address of site : 21018 E. Comstock Rd. , Linden, CA <br /> C. Owner of tanks : Wm. C. Anderson <br /> D. Contact Person : Same as above <br /> E. Contractor : Jim Thorpe Oil, Inc. <br /> dba Rich-Mart Construction <br /> ` <br /> 2. A. Scale Drawings : Attached <br /> 3. A. Groundwater Depth : 100 to 115 feet, per SJHS/EHD <br /> map, <br /> B. Soil To Be Removed: Approximately 300 Cu. Yds. <br /> 4. History of Site : The property is located on <br /> Comstock Rd. , approximately 10 miles north and east of the <br /> city of Stockton in San Joaquin County, California. The site <br /> is currently operated as a working walnut orchard. The site <br /> is situated within an essentially agricultural area. Nearby <br /> properties are primarily orchards and some residences. The <br /> overall topography is essentially flat with a slight fall to <br /> the west. <br /> 5. Project History : On December 14, 1990, a 10, 000 <br /> gallon diesel storage tank and associated product line were <br /> removed by Jim Thorpe Oil, Inc. The tank was in relatively <br /> good condition. Two soil samples were taken at a depth of 13 <br /> feet, one at the north and south ends of the tank location <br /> respectively. Sample results showed non-detectable for TPH- <br /> diesel and B, T, E & X. The excavation at the north end, <br /> however, showed obvious soil discoloration and had an odor of <br /> petroleum. There was no sign of contamination at the south <br /> end of the excavation. SJHS/EHD representitive Tish Briggs <br /> noted this in her report at the time. No soil samples were <br /> taken from the spoil pile and it was returned to the <br /> excavation during the backfill operation. Both samples were <br /> analyzed using California DOHS LUFT methods for diesel/8015 <br />