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Artesian Environmental Consultants, Inc <br /> Standard Operating Procedures <br /> COLLECTING ORGANIC VAPOR DATA FROM SOIL SA.MPLES <br /> Soil samples from drill cutungs, soil piles or tank excavations are placed with minimal <br /> disturbance into pre-cleaned standard soil sample collection jars The jars are filled to <br /> approximately one half full The soil samples are broken up to provided sufficient surface <br /> area to allow for volatilization Aluminum foil is placed over the mouth of the jai The jar <br /> mouth is then capped with the lid <br /> The jars are then placed out of direct sunlight and allowed to sit undisturbed for a minimum <br /> of twenty minutes, allowing time for the air in the headspace and soil to equilibrate <br /> An orgaruc vapor analyzer(OVA)or photoiomzation detector(PID) is to be calibrated and <br /> i the batteries checked prior to each use After the headspace within the sample jar and soil <br /> vapor has equibbrated,the probe of the organic vapor analyzer or photoionization detector <br /> should be inserted into the jar, puncturing the aluminum foil The piesence of any organic <br /> vapor detected should be treasured and recorded in parts per million (ppm) <br /> } The samples used for collecting organic vapor data are nevei submitted foi analytical <br /> testing <br />