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1 <br />101151 A oil 3 101 CAP Lei1 1 ..o )10 sk <br />Site Safety Plan <br />Field work performed by GeoStrategies (GSI) is conducted in accordance with GSI's Health <br />and Safety Plan and the Site Safety Plan. GSI personnel and subcontractors who perform <br />work at the site are briefed on the contents of these plans prior to initiating site work. The <br />GSI geologist or engineer at the site when the work is performed acts as the Site Safety <br />Officer. GSI utilizes a photoionization detector (PID) to monitor ambient conditions as part <br />of the Health and Safety Plan. <br />Collection of Samples <br />Soil samples are collected from the wall or base of the excavation with a hand -driven <br />sampling device fitted with a 2 -inch -diameter, clean brass tube or stainless steel liner. If <br />safety considerations preclude collection of the samples with the drive sampler, the <br />excavating equipment is used to bring soil from the pit wall to the surface, where a sample <br />tube is filled by driving it into the soil in the excavator's bucket. After removal from the <br />sampling device, sample tubes are covered on both ends with teflon sheeting, capped, <br />labeled, and place in a cooler with blue ice for preservation. A chain -of -custody form is <br />initiated in the field and accompanies the selected soil samples to the analytical laboratory. <br />If it is necessary to collect a sample of groundwater standing in the UST pit, the sample <br />is collected by lowering a new, clean teflon bailer into the pit from a safe position along <br />the pit wall. Once filled and retrieved, the groundwater in the bailer is carefully decanted <br />into the appropriate containers supplied by the analytical laboratory. If required, <br />preservative is added to the sample bottles by the laboratory prior to delivery. The samples <br />are then labelled and place in a cooler with blue ice for preservation. A chain -of -custody <br />form is initiated in the field and accompanies the selected soil samples to the analytical <br />laboratory. <br />Field Screening of Soil Sammi <br />A PID is used to perform head -space analysis in the field for the presence of organic <br />vapors from soil samples. This test procedure involves placing a small amount of the soil <br />to be screened in a sealable plastic bag. The bag is warmed in the sun to allow organic <br />compounds in the soil sample to volatilize. The PID probe is inserted through the wall of <br />the bag and into the headspace inside, and the meter reading is recorded in the field notes. <br />A-1 <br />