Laserfiche WebLink
Frontier Transportation, Inc. B23502.01 <br /> October 16, 1996 Page 9 <br /> Twining is a California Department of Health Services certified hazardous waste laboratory <br /> (Certificate No. 1371) for the analyses outlined herein. A description of laboratory quality <br /> assurance/quality control procedures proposed for the analyses are described in the SOPS <br /> presented in Appendix A- <br /> 5.0 RESULTS AND FINDINGS <br /> Results of the field investigation and laboratory testing are summarized in the following <br /> subsections. <br /> 5.1 Soil Profile: The foregoing is a general summary of the subsurface conditions <br /> encountered in the soil borings drilled for this investigation. Stratification lines on the soil <br /> boring logs represent approximate boundaries between soil types. Actual transitions <br /> between soil types may be gradual, and the interpretation of various soil types from soil <br /> cuttings is subjective. Soil samples collected during drilling of soil borings and boreholes <br /> for monitoring wells were utilized for visual characterization of soils. <br /> The soil profile beneath the site consists of sandy clay interbedded with clayey sand to a <br /> depth of 26.5 feet BSG, the greatest depth explored in monitoring well boreholes. <br /> Descriptions of the conditions encountered in the soil borings are presented in the soil <br /> borings logs in Appendix B. <br /> 5.2 Soil Analytical.Results: Soil sample analytical results for soil borings S-1 from below <br /> the former fuel dispenser, S-2 from below the former product lines, B-1 through B-4 <br /> surrounding the former gasoline UST, and MW-1RA,MW-1RB, and MW-2RA from refusal <br /> borings for monitoring wells are summarized in Table 5. Soil sample laboratory analysis <br /> reports and chain-of-custody documentation are presented in Appendix D. <br /> 1 <br />