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C A M B R I A <br /> The soil stockpile was sampled and profiled for disposal <br /> (laboratory data in Appendix D) On October 24, 2002, Manley <br /> and Sons Trucking, Inc of Sacramento, California transported <br /> the soil to Allied Waste Industries' Forward Landfill in <br /> Manteca, California for disposal <br /> Well Materials Wells MW-2 through MW-6 were constructed using four-inch <br /> diameter, Schedule 40 PVC casing with a screen slot size of <br /> 0 020-inch and#2/12 Monterey sand <br /> Screened Interval• Wells MW-2 through MW-6 are screened from 55 to 70 fbg <br /> Monitoring well construction details are presented on Table 1 <br /> and recorded on the exploratory boring logs(Appendix B) <br /> Well Development/Sampling Blaine developed and purged wells MW-2 through MW-6 on <br /> September 17 and 24, 2002 and sampled the wells on <br /> September 30, 2002 Blaine developed the wells using surge <br /> . block agitation and pump evacuation Blaine's groundwater <br /> monitoring and well development report, which includes field <br /> sheets,is presented as Appendix C <br /> Wellhead Survey Virgil Chavez Land Surveying (licensed land surveyor <br /> No 6323) of Vallejo, California surveyed the top of casing <br /> elevations for wells MW-2 through MW-6 relative to mean sea <br /> level' and surveyed the well's latitude and longitude on <br /> October 25, 2002(Appendix E) <br /> Groundwater Flow Direction Cambria evaluated water-level measurement data from <br /> September 30, 2002 and prepared a groundwater contour reap <br /> (Figure 3) Groundwater flow direction is east to northeast this <br /> quarter with an approximate hydraulic gradient of 0 002 <br /> HYDROCARBON DISTRIBUTION IN SOIL <br /> No TPHg, BTEX, or fuel oxygenates were detected in soil samples collected from well borings <br /> MW-2 and MW-4 through MW-6 No soil samples were analyzed from well boring MW-3, <br /> because it is located adjacent to boring SBA <br /> 0953 4 <br />