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Table 1 <br /> DERICKSON TRUCKING <br /> ESCALON, CALIFORNIA <br /> EXCAVATION CONFIRMATION SAMPLES <br /> ANALYTICAL RESULTS <br /> 7/12/93 <br /> SAMPLE LOCATION BENZENE TOLUENE ETHYL-BENZENE TOTAL TPH <br /> XYLENES (diesel) <br /> NW-1 North Wall ND ND ND ND ND <br /> at 13 Ft <br /> WW-1 West Wall ND ND ND ND ND <br /> at 15 Ft <br /> EW-1 East Wall ND ND ND ND N D <br /> at 17 Ft <br /> BH-1 Bottom Hole ND ND ND ND ND <br /> at 35 Ft <br /> SW-1 South Wall ND ND ND ND ND <br /> at 25 Ft <br /> Results in milligrams per kilogram (mg/kg) - parts per million (ppm) <br /> Analytical Method: BTEX - EPA 5030/8020; TPHd - EPA 8015M <br /> Minimum Detection Level:BTE - 0.005 mg/kg - ppm; Xylenes-0.015 mg/kg-ppm; <br /> TPHd-0.1 mg/kg-ppm <br /> ND-None Detected <br /> AGI's mobile laboratory was present to perform on-site chemical analysis for BTEX <br /> and TPHd on splits of the confirmation samples. The ability to generate accurate <br /> analytical results on location provided assurance that excavation objectives had been <br /> met and allowed immediate refilling of the excavation. The mobile laboratory reports <br /> are provided in Appendix B. <br /> 6 of 7 <br />