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1 <br /> east end Soil sample NCS-5 was collected on April 24, 1992, from a depth of 5 5 feet below ground <br /> surface (bgs) in the product delivery piping trench The sample was collected by removing 6 inches <br /> of soil from the bottom of the trench and then driving a 2-inch (inside diameter) by 6-inch long brass <br /> ' liner vertically into the undisturbed soil Ms Pam Violet from San Joaquin County Public Health <br /> Services, Environmental Health Division, was on site during soil sampling activities <br /> ' The ends of the brass liners were immediately covered with Teflon tape, capped with plastic <br /> ' endcaps, labeled with sample tags identifying the sample number, date, location, name of sampler, <br /> and sample depth, placed in waterproof, air tight resealable bags, and stored in a cooler containing <br /> ' ice Chain-of-custody forms were filled out for both sampling events Chain-of-custody forms <br /> include name of sampler, laboratory name, requested analyses, date, time and location of each <br /> ' sample, and signatures for each relinquishment Chain-of-custody forms are included in Appendix C <br /> ' All samples were couriered to Compu Chem Western Division of Sacramento, California <br /> Additional samples, NCS-IA and NCS-2A, were collected from stockpiled soils and held by the <br /> laboratory at the request of San Joaquin County Public Health Services, Environmental Health <br /> rDivision With the approval of Diane Henson of San Joaquin County, these samples were not <br /> analyzed because a clean closure of the tank pit would not occur Ground water was not encountered <br /> ' during UST removal, therefore, water samples were not collected The product delivery pipe trench <br /> was left open until soil sample NCS-5 could be collected in the presence of Ms Pam Violet from San <br /> ' Joaquin County Public Health Services, Environmental Health Division, on April 24, 1992 <br /> ' Due to the relative certainty of historic storage of leaded gasoline in tank 817B-2, requested <br /> analyses of the soil samples collected during tank removal operations were total petroleum <br /> hydrocarbons (TPH) as gasoline using Department of Health Services, Leaking Underground Fuel <br /> Tank Gas Chromatograph-Flame Ionization Detector (DHS LUFT GC-FID) methods, benzene, <br /> ' toluene, ethylbenzene, and xylenes using United States Environmental Protection Agency (EPA) <br /> method 8020, ethylene dibromide using EPA method 8010, organic lead using DHS LUFT and EPA <br /> method 7420, and total lead using EPA method 6010 <br /> TANKRMU NEW <br /> 04"[62LTATRI 5/14M 9 <br />