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` 4 <br /> 18 July 2002 <br /> AGE-NC Project No 95-0109 <br /> Page 8 of 8 s <br /> analysis Chain-of-custody protocols will be used to document sample custody transfer from the field <br /> to the analytical laboratory A chain-of-custody form will accompany the samples <br /> 4 5 EQUIPMENT DECONTAMINATION <br /> All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox <br /> and rinsed with clean water prior to each sampling location All probing rods will be cleaned prior <br /> to advancement at each probe boring location Hollow-stem augers will be steam-cleaned prior to <br /> each boring <br /> 4 6 BORING ABANDONMENT <br /> All soil borings not completed as monitoring wells, if any, will be permanently sealed to prevent <br /> vertical migration of potential contaminants Soil borings shall be abandoned by backfilling with <br /> bentonite or cement-bentonite slurry from the total depth to surface grade The EHD will be notified <br /> for grout inspection at least 48 hours prior to conducting grouting procedures <br /> Advanced GeoEnviron mental,Inc <br /> r <br />