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if <br /> 13 August 2002 <br /> AGE-NC Project No. 02-0950 _ <br /> Page 5 of 5 <br /> sample preservative. Samples for TPH-d analysis will be collected into laboratory-supplied, 1 liter <br /> amber bottles without sample preservative. Total lead'samples will be collected into laboratory- <br /> supplied,I 6-oz <br /> aboratory-supplied,l6-oz plastic bottles, containing 5 milliliters of nitric acid as a 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 sof Alconox. All probing rods will be cleaned, prior to <br /> advancement at each probe boring-location. <br /> 4.5. BORING ABANDONMENT <br /> All probe borings will be permanently sealed to prevent vertical migration ofpotential contaminants. <br /> Soil borings shall be abandoned by backfilling with portland cement from the total depth to surface _ <br /> grade. <br /> y Advanced GeoEnvironmental;Inc. <br />