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AEGIS ENVIRONMENTAL, INC- <br /> STANDARD OPERATING BORING SAMPLING <br /> EDURES <br /> RE: 50IL <br /> SOP-1 <br /> ass <br /> Duren drilling, soil samples for chemical analysis are collected in thin�walled inches out der a+amete tubes, <br /> 9 4 or 6 inches long y <br /> of varying diameters and lengths (e.g , split- <br /> barrel <br /> or four of the selected tubes, plus a spacer tube, are set in an t8-inch long sp <br /> barrel sampler of the appropriate inside-diameter <br /> Where possible, the split-barrel sampler is driven its entire <br /> el from the either hydraulically <br /> the <br /> using a 140-pound drop hammer The sampler is extra m the ler <br /> brass tubes, containing the soil samples, are remommed and cappedd Upon woh alum nurnp{oil <br /> the selected brass tubes are either Immediately <br /> Teflon sheets and plastic caps or the samples are extrudedass arrom he <br /> tubes and sealed <br /> or Te The samples are <br /> within other appropriate cleaned sample containers (e g , g 1 <br /> n hermetically sealed, labeled, and refrigerated for d nlimize the potential for cross- <br /> under strict chain-of- <br /> the These procedures m <br /> custody, to the analytical laboratory prior to chemical <br /> contamination and volatilization of volatile organic compounds (VOc) p <br /> analysis the <br /> One soil sample collected at each sampling interval is analyzed in <br /> detector,1eo gani vapor <br /> ld using either <br /> O flame ionization <br /> a portable phototontzation detector (PVD}, this <br /> analyzer, catalytic gas detector or an explabs absence <br /> f hydrocarbons,he purpose and the samples to <br /> ylass lar <br /> b a qualitatively determine the presence <br /> soil sample s sealed in either a brass tube, g <br /> be analyzed at the laboratory measur <br /> orP lastic bag to allow for some volatilization of VOcThe <br /> SID is then <br /> used <br /> toce data e <br /> the concentrations of hydrocarbons within the containers <br /> recorded on both field notes and the boring logs at the depth corresponding to the <br /> sampling point <br /> to document the soil and/orf the materials profilegraphic ea <br /> th <br /> Other soil samples are collectedo <br /> All <br /> the project site, and estimate the relative permeability <br /> drilling and sampling equipment are either steam-cleaned e a�washed <br /> s Been boreholes to <br /> n solution and <br /> dr+ 9 <br /> double-rinsed in d fo�dcrossecontam+nat on rior to use at eachs <br /> minimize the potential <br /> ATTACHNeNTISCP_l1FESF;V3ARY 1992 <br />