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03 August 2001 <br /> AGE--NC Project No. 99-0641 <br /> Page 6 of 6 <br /> 4.5. BORING ABANDONMENT <br /> The soil probe boring will be permanently sealed to prevent vertical migration of potential <br /> contaminants, Soil borings shall be abandoned by backfilling with bentonite or cement-bentonite <br /> slurry from the total depth to surface grade. The PHS-EHD will be notified for grout inspection at <br /> least 48 hours prior to conducting grouting procedures. <br /> Advanced GeoEnvironmentaf,Inc. <br />