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19 October 2004 <br /> AGE-NC Project No. 04-1180 <br /> Page 5 of 7 _ <br /> 3.2.2. Collection and Analysis of Ground Water Samples <br /> 66 Water samples were collected from MW-1 using the dedicated disposable plastic bailer after <br /> allowing the well to achieve a minimum 80%recovery of th&pre-purge water volume. The water <br /> sample was transferred into 40-m1 volatile organic analysis (VOA) vials containing 0.5 ml 18% <br /> hydrochloric acid as a sample preservative. After collection,,the samples were properly labeled, <br /> placed in a chilled container and transported under chain:of custody to CTEL, a California <br /> LW DHS-certified analytical laboratory, to be analyzed for: <br /> • TPH-g in accordance with EPA Method 8015M; and <br /> BTEX and the fuel additives 1,2-DCA and EDB in accordance with EPA Method 8260B. <br /> 4.0. FINDINGS �� oG <br /> The soil stratigraphy and depth to ground water were determined i nt <br /> impact to soil and ground water was quantified by the laboratory <br /> • 4.1. STRATIGRAPHY <br /> In general,brown clayey silt,sandy silt and silty sand was encountered from surface grade to depths <br /> of approximately 50 feet bsg. ,Brown, well-graded gravelly sand with silt or sandy silt was <br /> encountered from depths of 50 to 55 feet bsg. Samples were damp to moist from 10 to 45 feet bsg <br /> and in general, had low plasticity, toughness and consistency. Field observations did not detect <br /> petroleum hydrocarbon-like odor in any of the soil samples collected. Boring logs are included in <br /> Appendix B. <br /> �•• 4.2. LABORATORY RESULTS OF SOIL SAMPLES <br /> Three soil samples were submitted to CTEL for analysis. No target analytes were detected in the <br /> analyzed soil samples. A copy of the laboratory report (CTEL Project No. CT214-0408138) is <br /> included in Appendix E. <br /> v+ Advanced GcoEnvironmental,Inc. <br /> Irr <br />