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G:a <br /> Coca-Cola Enterprises- West <br /> USTEC job No.90054.03 <br /> i... <br /> ambient conditions for a minimum of fifteen minutes. The HNU probe was then inserted <br /> through the seal of the plastic bag into the"headspace" above the soil sample. <br /> a�a <br /> is <br /> The highest HNU readings were then recorded in meter units on the stratigraphic logs <br /> (Appendix D). The HNU readings were used along with visual observations to screen samples <br /> ' for laboratory analysis. A summary of soil field screening results is presented in Table 4. <br /> hX� <br /> 3.1.6 Samplintf Care and Handling <br /> �+ All soil and groundwater samples were handled in accordance with USTEC policy for the care <br /> and handling of samples as defined in the site specific work plan. Soil samples were prepared <br /> by covering the ends of each sample retainer with aluminum foil and capping with plastic <br /> endcaps. The caps were then sealed with duct tape,labeled,and placed in a resealable plastic <br /> bag. The samples were then placed on ice and maintained at arjut 4° Celsius to minimize <br /> potential volatilization of organic Compounds until delivery to Sequoia Analytical Laboratories, <br /> x <br /> Inc.,Redwood City,California. No preservatives were used except for ice. <br /> -, e wrapped with"bubble wrap"to prevent breakage and <br /> Groundwater sample bars and vials wer <br /> placed in resealable plastic bags. The groundwater samples were then placed on ice to minimize <br /> ` potential volatilization of organic compounds until delivery to Sequoia Analytical Laboratories. <br /> No preservatives were used except ice and laboratory prepared vials containing hydrochloric <br /> acid. <br /> Chain-of-custody documentation was maintained by USTEC personnel and accompanied the <br /> transfer of groundwater samples from the field to Sequoia Analytical Laboratories. The chain-oE- <br /> custody documentation is included in Appendix F. The laboratory certificates of analvsis are <br /> included in Appendix G. <br /> 3.1.7 Equip rnent Decontamination Procedures <br /> The drilling rig and associated tools were decontaminated prior to entering the site and were <br /> ! ? steam cleaned between borings. All sampling Lluipmenl used was decontaminated between <br /> 12 <br /> t <br />