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CAMBRIA <br /> • Cambria proposes 14 exploratory soil borings (SB-1 through SB-14) be advanced in the <br /> southern portion of the site to characterize the remaining mass of petroleum <br /> hydrocarbons in shallow soil The proposed boring locations are shown on Figure 2 <br /> Work Tasks <br /> Permits. Cambria will obtain a drilling permit from EHD <br /> Site Safety Plan• Cambria will prepare a Site Safety Plan for fieldwork <br /> Utility Clearance Cambria will mark the proposed drilling locations and will clear the locations <br /> through Underground Service Alert prior to drilling <br /> Site Investigation: Fourteen exploratory soil borings (SB-1 through SB-14) are proposed at the <br /> locations shown on Figure 2 The borings will be advanced to approximately 20 fbg using <br /> Geoprobe equipment <br /> • A Cambria geologist will supervise the drilling and will describe encountered soils collected <br /> from the well boring using the Unified Soil Classification System and Munsell Soil Color Charts <br /> Soil samples will be collected continuously for soil description, and at 5-foot intervals for <br /> chemical analyses, and organic vapor screening using a photo-ionization detector (PID) <br /> Cambria will prepare exploratory boring logs for each boring and will record the PID readings on <br /> the logs <br /> Soil samples designated for chemical analyses will be retained in plastic, stainless steel, or brass <br /> sample tubes The tubes will be covered on both ends with Teflon sheets and plastic end caps <br /> Soil samples will be labeled, entered onto a chain-of-custody record and placed into a cooler with <br /> ice for transport to a State of California certified laboratory for analyses A standard two-week <br /> turn-around time will be requested for laboratory results <br /> Chemical Analyses: Soil samples will be analyzed for total petroleum hydrocarbons as gasoline <br /> (TPHg), benzene, toluene, ethylbenzene, xylenes, fuel oxygenates (MTBE, di-isopropyl ether, <br /> tertiary amyl methyl ether, ethyl tertiary butyl ether, tertiary butanol, and ethanol), by EPA <br /> Method 8260 <br /> 0783 3 <br />