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underlying the former USTs was removed, and the following samples were collected from <br /> a depth of approximately 3 feet below the bottom of the former USTs <br /> • Two samples (samples ST-IA and ST-lB) from beneath the former <br /> gasoline tank <br /> • Two samples (samples ST-3A and ST-3B) from beneath the former <br /> wastewater tank <br /> • Three samples (samples ST-2A, ST-2B and ST-2C)from beneath the <br /> former diesel tank <br /> A sample (ST-2D)was also collected from native soil at a depth of approximately 6 feet <br /> below the bottom of the former diesel tank Additionally, one sample (RF) was collected <br /> from a depth of approximately 2 feet beneath the former remote fill line associated with the <br /> diesel tank Figure 3 shows the approximate locations of the initial soil samples <br /> 2 Composite samples were collected from stockpiled soil excavated during removal of the <br /> USTs (designated Stockpile 1, Stockpile 2, and Stockpile 3) Stockpile 1 represents soil <br /> removed from the former gasoline tank excavation, Stockpile 2 represents soil removed from <br /> the former diesel tank excavation, and Stockpile 3 represents soil removed from the former <br /> wastewater tank excavation <br /> . 3 Soils from the excavated areas and from beneath the former remote fill lane were removed with <br /> a backhoe bucket and sampled an clean 3-inch brass sleeves Care was taken to select portions <br /> of soil which had not come an contact with the bucket Samples were collected from the <br /> stockpiles(1) in clean 3-inch brass sleeves which were hand driven into the soil After sample <br /> collection, sleeves were capped with Teflon tape and plastic fraction caps, labeled, placed in <br /> an iced cooler, and transported under proper Chain-of-Custody to Canome Environmental <br /> Laboratory, a California-certified analytical laboratory in Stockton A copy of the laboratory <br /> reports and Chain-of-Custody forms are included in the Tank Closure Report in Appendix A <br /> 2.1 LABORATORY RESULTS <br /> 1 Laboratory results for the initial soil samples are summarized an Table 1 Samples ST-1A, <br /> ST-1B, and Stockpile I were analyzed for the following <br /> Total petroleum hydrocarbons as gasoline (TPHg) by Modified <br /> EPA Method 8015 <br /> • Benzene, toluene, ethylbenzene and total xylenes (BTEX) by <br /> EPA Method 8020 <br /> tl>Each stockpile was divided into quadrants,and a sample was collected from several inches below the surface of the <br /> soil from each quadrant A minimum of three samples were collected from each of the stockpiles <br /> 2 <br /> ENVIRONMENTAL SOLUTIONS <br />