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• <br /> 25 April 2000 <br /> AGE-NC Project No. 95-0144 <br /> Page 4 of 4 <br /> presence of volatile organic compounds using an organic vapor meter(OVM), equipped with photo- <br /> ionization detector (PID). <br /> 4.3. GRAB GROUND WATER SAMPLING PROCEDURES <br /> For the collection of the `grab' ground water sample,probe boring 1513-9 will be advanced to a depth <br /> of approximately 18 feet bsg. The grab ground water sample will be collected using a Geoprobe <br /> water sampling assembly with a pre-cleaned 0.01 slotted PVC screen. The ground water sample will <br /> be extracted with a positive displacement Teflon sample tubing and ball bearing assembly inserted <br /> through the hollow center of the push rods into the screened section. The sample will be collected <br /> in laboratory-supplied,40-m1 VOA vials containing 0.5 ml hydrochloric acid as sample preservative, <br /> 1-liter amber bottles and plastic bottles. The labeled bottles will be placed in a chilled container <br /> under ice and transported under chain-of-custody to a DHS-certified laboratory. <br /> 4.4. 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 /> 4.5. BORING ABANDONMENT <br /> All probe borings will be permanently sealed to prevent vertical migration of contaminants. Soil <br /> borings shall be abandoned by backfilling with portland from the total depth to surface grade. <br /> Advanced GeoEnvironmental,Inc. <br />