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CAMBRIA <br /> boring specifications are described in Table I and locations are <br /> shown on Figure 2 <br /> Boring Depths Borings SBA through SB-14 were drilled to 20 feet below grade <br /> (fbg) and well boring MW-15 was drilled to 25 fbg <br /> Groundwater Depths: Groundwater was encountered in the borings at depths ranging <br /> from 115 to 18 fbg <br /> Soil Classification: Soils encountered during drilling activities are described on the <br /> boring logs (Appendix B) and summarized below The soil <br /> descriptions are based on the Unified Soil Classification System <br /> and the Munsell Soil Color Charts Soils encountered consisted <br /> of silt (ML), sands (SM, SP, and SW), and gravels (GP and <br /> GW) In general, native soil beneath the site is silt to depths <br /> ranging from 13 to 18 fbg, underlain by sand to the total depth <br /> explored of 20 fbg Non-native fill was encountered in many <br /> borings at shallow (I to 3 fbg) and deeper depths within the <br /> former UST complex located in the southeastern corner of the <br /> site <br /> Chemical Analyses. Soil samples collected from the bonngs were analyzed for total <br /> petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, <br /> ethylbenzene, and xylenes (BTEX), fuel oxygenates [methyl <br /> tertiary butyl ether (MTBE), tertiary amyl methyl ether, tertiary <br /> butyl alcohol (TBA), di-isopropyl ether (DIPE), ethyl tertiary <br /> butyl ether, and ethanol], and lead scavengers <br /> [1,2-dichloroethane (1,2-DCA) and 1,2-dibromoethane] by EPA <br /> Method 8260B The soil samples were also analyzed for lead by <br /> EPA Method 6010B <br /> Soil Disposal- Approximately 4 cubic yards of drill cuttings were generated <br /> from drilling the borings and from well destruction activities <br /> (discussed below) and covered with plastic sheeting and stored <br /> onsite The soil was profiled for disposal and transported to <br /> Allied Waste Industries' Forward Landfill in Manteca, <br /> • California on October 27,2004 for disposal <br /> 0783 3 <br />