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t <br /> Preliminary Investigation and Evaluation Report— Califomia Cedar Products <br /> 24 Disposal <br /> Paper and plastic waste from sampling and cementing activities were disposed in <br /> the onsite waste disposal bin Wash water was disposed in the plant sanitary <br /> sewer Soil and water generated during sampling were disposed by the laboratory <br /> under their periodic waste disposal program <br />' 3.0 Results <br /> 31 Soil Descriptions <br /> Soil samples collected during this investigation are described on the Exploratory <br /> Boring Logs presented in Appendix A The subsurface soils consisted of fine- to <br /> coarse-grained materials that included clay {CL} and poorly graded sand {SP} <br /> Generally, from the bottom of the tank excavation to 24 5 feet bgs, the sods were <br /> olive gray in color consisting of moist to wet sand From 24 5 feet bgs to the depth <br /> explored at 30 feet the soils consisted of light olive brown clay <br /> Wet conditions were observed at about 13 feet bgs in B1 and may be attributed to <br /> the vicinity of a water main that had a recent leak repaired Wet conditions were <br /> observed at depth from 18 to 19 feet bgs in B2, B3 and B4 in soils consisting of <br /> olive gray poorly graded fine sand <br /> 32 Soil Analytical Results <br /> Soil samples consisting of fine sand and clay were selected for analytical testing <br /> based on five-foot intervals and from field observations above the presently <br />' saturated zone and from deposits just below the contact with the sand and clay <br /> . Selected soils were tested for TPH-d, BTEX and 5 fuel oxygenates The results are <br /> RAS Consulting <br /> r <br />