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fir �• ~ <br /> . 06 November 2003 <br /> AGE-NC Project No 98-0511 <br /> Page 5 of 5 <br /> screen For the collection of grab ground water samples, the water sampling assembly will be <br /> advanced to the specific water-bearing zone and retracted to expose the well screen The ground <br /> water sample will be extracted by lowering a polyethylene bailer through the hollow center of the <br /> push rods into the screen section Samples for TPH-g, BTEX, and fuel oxygenate analyses will be <br /> collected into laboratory-supplied, 40-m1 VOA vials containing 0 5-ml of hydrochloric acid as <br /> sample preservative <br /> Appropriately sealed and labeled samples will be placed in a chilled container under ice and <br /> transported under chain-of-custody procedure to a DHS-certified laboratory Each sample container <br /> will be labeled with the boring designation, time, date and sampler's initials <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 of each soil boring <br /> 4 5 BORING ABANDONMENT <br /> Probe borings will be permanently sealed to prevent vertical migration of potential contaminants <br /> Probe borings shall be abandoned by backfilling with portland cement from the total depth to surface <br /> grade <br /> Advanced GeoEnvi ron mental,Inc <br />