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. 09 February 2005 <br /> AGE-NC Project No 03-1153 <br /> Page 5 of 5 <br /> i <br /> Additionally, soil samples will be field-screened for the presence of volatile organic compounds <br /> using an organic vapor meter (OVM), equipped with photo-ionization detector (PID Thermo <br /> Environmental 580, 10 0 eV, calibrated to isobutylene) <br /> 43 GRAB GROUND WATER SAMPLING PROCEDURES <br /> The soil boring will be advanced to the top of the ground water table, as identified by collection of <br /> a saturated soil sample, to collect grab ground water samples Once ground water has been <br /> encountered, the samples will be collected using a Geoprobe water sampling assembly with a pre- <br /> cleaned, 1-inch diameter, 0 01-inch slotted polyvinylchloride (PVC) screen The ground water <br /> samples will be extracted by lowering a Teflon hose-bailer through the hollow center of the push <br /> rods into the screened section <br /> The ground water samples will be collected into three laboratory-supplied,40-milliliter(ml)volatile <br /> organic analysis (VOA) vials containing 0 5 ml 18% hydrochloric acid solution as a sample <br /> preservative, and one I-liter amber bottle without preservative Following collection, the samples <br /> will be appropriately labeled, placed on ice, and kept in a chilled container until delivered to the <br /> laboratory for analysis Chain of custody protocols will be used to document sample custody transfer <br /> from the field to the analytical laboratory A chain of custody form will accompany the samples <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 the probe boring location <br /> 4 5 BORING ABANDONMENT <br /> The soil probe boring will be permanently sealed to prevent vertical migration of potential <br /> contaminants The soil boring shall be abandoned by backfilling with portland cement from total <br /> depth to surface grade utilizing a tremie pipe <br /> • <br /> Advanced GeoEnvironmentsl,Inc <br />