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29 September 1998 <br /> AGE-NG Project No. 98-0492 <br /> Page 6 of f <br /> .4.5. BORING ABANDONMENT' <br /> All probe borings will be permanently.sealed to prev_e t.vertical migration of contaminants. Soil <br /> borings shall be abandoned by backfilling with cement- lorry from the total depth to surface grade. <br /> -Advanced GeoEnvironmental,Inc. <br />