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Lodi Food and Liquor <br /> Job #20-0166 <br /> Page 2 <br /> The sampler was driven into the soil approximately 18 inches with a 140-pound <br /> hammer dropped repeatedly from a height of 30 inches. The samples were removed <br /> from the sampler, the ends covered with aluminum foil, capped, and sealed with duct <br /> tape. <br /> Four additional shallow six-inch borings (B-4, B-5, B-6 and B-7) were hand <br /> augured down to depths of approximately 4, 3, 3, and 5 feet respectively. These <br /> shallow borings were located around the dispensing units and lines. Soil samples <br /> were collected in 6-inch brass sleeves, the ends covered with aluminum foil, capped, <br /> and sealed with duct tape. Table I below summarizes the sample depths for each <br /> boring. <br /> TABLE I <br /> BORING LOCATION SAMPLE DEPTH (FT) <br /> B-1 16-16.5 <br /> 21-21 .5 <br /> B-2 16-16.5 <br /> 21-21 .5 <br /> B-3 16-16.5 <br /> 21-21 .5 <br /> B-4 3.5-4.0 <br /> B-5 2.5-3.0 <br /> B-6 1 .0-1.5 <br /> 2.5-3.0 <br /> B-7 1 .5-2.0 <br /> 4.5-5.0 <br /> All soil samples were labeled and placed into cold storage. The appropriate chain-of- <br /> custody forms were completed (see Appendix B for copies) and a total of twelve soil <br /> samples were shipped to Precision Environmental Laboratories, a California State <br /> certified laboratory located in Orange, California, for analysis. <br /> Soil samples from the borings were examined in the field and visually logged based <br /> on the Unified Soil Classification System. At the completion of the field work, all <br /> borings over 3 feet in depth were sealed with neat cement. Borings three feet and <br /> under were backfilled with the native soils. Asphalt patch was applied to the <br /> surface. <br /> To prevent cross-contamination between samples, all sampling equipment was cleaned <br /> prior to each sampling interval by washing with trisodium phosphate (TSP) , rinsing <br /> with water, and then rinsing again with distilled water. <br />