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Artesian Environmental Consultants, Inc <br /> Standard Operating Procedures <br />' COLLECTING ORGANIC VAPOR DATA FROM SOIL SAMPLES <br />' Soil samples from drill cuttings, soil piles or tank excavations-are placed with minimal <br /> disturbance into pre-cleaned standard soil sample collection jars The bars are filled to <br /> approximately one half full The soil samples are broken rip to provided sufficient surface <br /> area to allow for volatilization Aluminum foil is placed over the mouth of the far The far <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 organic vapor analyzer (OVA) or phototonization detector (PID) is to be calibrated and <br /> the batteries checked prior to each use After the headspace within the sample lar and soil <br /> vapor has equilibrated, the probe of the organic vapor analyzer or photoionization detector <br /> should be inserted into the lar, puncturing the aluminum foil The presence of any organic <br /> vapor detected should be measured and recorded in parts per million (ppm) <br /> The samples used for collecting organic vapor data are never submitted for analytical <br /> tesung <br /> I <br />