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CAMBRIA <br /> Groundwater Depths Groundwater was first observed at approximately 65 0 fbg <br /> during drilling activities Groundwater level stabilized in the <br /> boring at approximately 64 8 fbg <br /> Sediment Litliology Sediment Irthology generally consists of silt (ML) to 8 0 fbg <br /> underlain by silty sand (SM) to 14 0 fbg, and silt (ML) to the <br /> total explored depth of 75 5 fbg <br /> Chemical Analyses Soil and groundwater samples were analyzed for TPHg by EPA <br /> Method 8015 (modified), benzene, toluene, ethylbenzene, <br /> xylenes (BTEX), and MTBE by EPA Method 8020B, fuel <br /> oxygenates (TAME, TBA, DIPS, ETBE, and MTBE) and <br /> lead scavengers (1,2-Dicloroethane, and 1,2-Dibromoethane), <br /> by EPA Method 8260A <br /> Soil Disposal Soil cuttings from the investigation were placed on and <br /> covered with plastic sheeting, profiled, and accepted for <br /> . disposal at Forward's Manteca, California landfill The soil <br /> was hauled to the landfill on October 6, 1999 by Manley and <br /> Sons Trucking, Inc <br /> Well Construction <br /> Well Materials Well MW-1 was constructed using two-inch diameter, <br /> Schedule 40 PVC casing with a 0 020-inch screen slot size and <br /> #2112 Lonestar sandpack <br /> Screened Interval The screened interval in well MW-1 is from approximately <br /> 60 to 75 fbg Monitoring well construction details are <br /> presented in Table l and recorded on the exploratory boring <br /> log (Appendix B) <br /> Well Development/Sampling Blaine Tech Services of San Jose (Blaine) developed and <br /> purged well MW-1 on October 14, 1999 Blaine developed <br /> the well using surge block agitation and pump evacuation <br /> Following well development, Blaine collected groundwater <br /> samples from well MW-1 on October 27, 1999 Blaine's <br /> 241-1359 3 <br />