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12 November 2009 <br /> AGE-NC Project No. 98-0497 <br /> Page 5 of 5 <br /> I <br /> using an organic vapor meter (OVM), equipped with ph ato-ionization detector(PID). <br /> 3.4. EQUIPMENT DECONTAMINATION <br /> Prior to use,all sampling tools used for sample collection will be thoroughly rinsed with clean water ' <br /> after being washed with a solution of Alconox. All probing rods will be cleaned prior to <br /> advancement at each probe boring location. <br /> 3.5. BORING ABANDONMENT <br /> All probe borings will be permanently sealed to prevent v rtical migration of potential contaminants. <br /> Soil borings shall be abandoned by backfilling with port land cement from the total depth to surface <br /> grade. <br /> t <br /> r <br /> a <br /> Advanced GeoEnvironmental,Ine. <br />