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CAMâ–º BRIA <br /> UST Soil Sampling: With guidance from Mr. Von Flue, Cambria staff collected three soil <br /> samples from beneath the each of the USTs. Six soil samples (ST-1 through ST-3 and RT-1 <br /> through RT-3) were collected at a depth of approximately 12 feet below grade (fbg) in native <br /> soil. Soil samples were collected from the tank pit using an excavator. The soil was removed <br /> from the excavator bucket, packed into clean brass sample tubes, and the tube ends were covered <br /> with Teflon tape and plastic end caps. Sampling locations are shown on Figure 2. <br /> Dispenser and Product Piping Soil Sampling: Four product dispensers and the associated <br /> product piping were removed prior to Cambria's arrival onsite. Cambria collected soil samples <br /> (D-1 through D-4) beneath the product dispensers and soil samples (P-1 through P-6) beneath <br /> the product piping at an approximate depth of 3 fbg (Figure 2). Soil samples were collected in <br /> the same manner described above using a backhoe. <br /> Waste Oil Tank Removal: One 550-gallon waste oil tank was removed on December 7, 2004 by <br /> Paradiso. Mr. Ray Von Flue and Cambria field staff were present to witness the removal and <br /> condition of the tank. The tank was in good condition, with no signs of failure. <br /> Waste Oil Tank Soil Sampling: With guidance from Mr. Von Flue, Cambria staff collected a <br /> soil sample (WO-1)from beneath the waste oil tank at 8 fbg. The soil sample was collected from <br /> the waste oil tank excavation as described above using an excavator. <br /> Soil Chemical Analyses: All soil samples were labeled, placed into a cooler with ice, entered <br /> onto a chain of custody record, and transported to a California-certified analytical laboratory. <br /> Soil samples collected from beneath the dispensers, piping and fuel USTs were analyzed for total <br /> petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, xylenes (BTEX), <br /> and fuel oxygenates (methyl tertiary butyl ether [MTBE], di-isopropyl ether, ethyl tertiary butyl <br /> ether, tertiary butyl alcohol, and tertiary amyl methyl ether) by EPA Method 8260B. Soil <br /> samples collected from beneath the hoists were analyzed for total recoverable petroleum <br /> hydrocarbons (TRPH) by EPA Method 418.1M, total petroleum hydrocarbons as diesel (TPHd) <br /> by EPA Method 8015M, BTEX by EPA Method 8260B, and polychlorinated biphenyls (PCBs) <br /> by EPA Method 8082. The soil sample from the waste oil tank pit was analyzed for TPHd by <br /> EPA Method 8015M, BTEX, fuel oxygenates and chlorinated hydrocarbons by EPA Method <br /> 826013, metals (chromium, Iead, nickel, zinc, and cadmium) by EPA Method 6010B, and PCBs <br /> by EPA Method 8082. <br /> Soil Reuse: Pea gravel and soil generated during the UST's, dispensers, and product piping <br /> removal was stored onsite and covered with plastic sheeting. The soil stockpiles were sampled <br /> and analyzed (Appendix B). The pea gravel and soil stockpiled on site were used to backfill the <br /> open excavations after consultation with SJCEHD staff. <br /> 0323 2 <br />