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i <br /> 18 July 2008 <br /> AGE-NC Project No. 98-0452 <br /> Page 5 of 5 <br /> center of the push rods into the screen section. Samples will be collected into laboratory supplied, <br /> 40-m1 volatile organic analysis vials without sample preservative. <br /> samples will be appropriately sealed and labeIed, placed in a chilled container under ice, and <br /> transported under chain-of-custody procedure to a CDPH-certified laboratory.Each sample container <br /> will be labeled with the boring designation,time, date, and sampler's initials. <br /> 4.2. EQUIPMENT DECONTAMINATION <br /> i <br /> Prior to use,all sample collection tools will be thoroughly rinsed with clean water after being washed <br /> with a solution of.Alconox. All probing rods will be cleaned prior to advancement at each probe <br /> boring location. <br /> S <br /> 4.3. BORING ABANDONMENT <br /> All probe borings will be permanently sealed to prevent vertical migration of potential contaminants. <br /> Soil borings shall be abandoned by backfilling with portland cement from the total depth to surface <br /> grade. i <br /> Advanced GcoEnvironmental,Inc. <br /> i <br />