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14 November 2000 <br /> AGE-NC Project No. 00-0782 <br /> Page 3 of 4 <br /> 3.4. Equipment Decontamination <br /> Prior to sample collection, Geoprobe soil sampling equipment was thoroughly rinsed with clean <br /> water after being washed with a solution of Alconox. Geoprobe rods were thoroughly cleaned prior <br /> to soil probe boring advancement. <br /> 4.0. FINDINGS <br /> Laboratory analysis of soil and ground water samples were utilized to assess the hydrocarbon-impact <br /> on the two media. <br /> 4.1 SOIL PROFILE <br /> Generally,light brown, damp, fine sand with silt and silty sand was encountered from approximately <br /> 4 feet bsg to approximately 12 feet bsg. Light brown to gray, damp, silty clay with sand was <br /> encountered from approximately 12 feet bsg to 24 feet bsg. The boring log is included in Appendix <br /> A. <br /> 4.2. ANALYTICAL RESULTS OF SOIL SAMPLES <br /> One soil sample from probe boring B 1 collected at 20 feet bsg was submitted to a DHS-certified <br /> laboratory(McCampbell Analytical Inc.) for analysis as noted above. TPH-d, volatile organics and <br /> fuel oxygenated compounds were not detected above laboratory reporting limits in the soil sample <br /> analysis. <br /> Analytical results of the soil sample is summarized in Table 1. Copies of the laboratory report <br /> (McCampbell Analytical Inc. Lab number 52150) and chain-of-custody form are included in <br /> Appendix B. <br /> 4.3. ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> A ground water sample from boring B2 was submitted to a DHS-certified laboratory(McCampbell <br /> Analytical Inc.) for analysis as noted above. TPH-d and MTBE were detected in the ground water <br /> sample at concentrations of 190 micrograms per liter (µg/1) and 1.2 ,ug/l, respectively. BTEX <br /> compounds, volatile organics and the remaining fuel oxygenated compounds were not detected <br /> above laboratory reporting limits in the ground water sample analysis. <br /> Advanced GeoEnvironmental,Inc. <br />