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i IM <br /> 02 January 2009 <br /> AGE-NC Project No. 99-0682 <br /> Page 7 of 7 <br /> of after one use, requiring no decontaminating and the Teflon tubing used with the inertia pump is <br /> either dedicated to each well or changed at each sampling event, thereby minimizing cross <br /> contamination due to sampling devices. Samples will be drawn and collected in such a manner that <br /> agitation and exposure of the ground water to the atmosphere are minimal. <br /> I ' <br /> 1 <br /> 3 . 6.4 . Sample Handling <br /> i <br /> Ground water samples will be collected into laboratory supplied containers . Ground water samples <br /> to be analyzed for constituents listed in Section 2.2. willbe collected into laboratory-supplied 404ri1 <br /> volatile organic analysis (VOA) vials without sample preservative. Samples for TPH-d will be <br /> collected into 1 -liter glass amberbottles without preservative. Following collection, the samples will <br /> be placed on ice and kept in a cooler until delivered to the laboratory for analysis. Chain of custody <br /> protocols will be used to document sample custody transfer from the field to the analytical <br /> laboratory. A chain of custody form will accompany the samples. <br /> 3 . 7 . EQUIPMENT DECONTAMINATION <br /> All sampling tools used for sample collection will be thoroughly rinsed with clean water after being <br /> washed with a solution ofAlconox. All down-hole drilling and sampling equipment will be pressure <br /> washed prior to starting each boring. <br /> 3 . 8 . BORING ABANDONMENT <br /> All soil probe borings and soilborings not completed as monitoring wells wiltbe permanently sealed <br /> to prevent vertical migration of potential contaminants . Soil borings shall be abandoned by <br /> backfilling with cement slurry from total depth to surface grade. The EHD will be notified for grout <br /> inspection at least 48 hours prior to conducting grouting procedures. <br /> Advanced GeoEnvironmental, Lic. <br />