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KLEINFELDER <br /> The soil borings were closed in accordance with the protocol described in Appendix B and <br /> PHS/EHD guidelines Mr Steve Sasson of PHS/EHD observed the grouting of the borings Soil <br /> cuttings generated while drilling were placed on and covered by visqueen and stored on site <br /> pending chemical analysis Analysis and disposal of drill cuttings was not included in this scope <br /> of work <br /> 1 4.2.2 CHANNEL WATER SAMPLE <br /> A channel surface water sample (#13072) was collected for quantitative analysis (refer to Plate <br /> 2) The sample was collected by lowering a sterile disposable bailer into the water surface and <br /> decanting into laboratory prepared containers <br /> 1 4.3 LABORATORY ANALYSIS <br /> Each of the Hydropunch IITI water samples selected for quantitative analysis was submitted <br /> 1 under chain-of-custody control to Sequoia Analytical Laboratories (Sequoia) of Sacramento, <br /> California Sequoia is certified by the California Department of Toxic Substances to perform the <br /> requested analyses The Hydropunch IIT"' water samples were analyzed on a normal laboratory <br /> turnaround schedule, which usually requires approximately 10 to 15 working days The surface <br /> water sample was analyzed on a rush 3-day laboratory turnaround schedule <br /> ' The water samples were analyzed for the following <br /> Sample Location Number of Samples Sample Analysis <br /> Analyzed <br /> Borings HP-I*, HP-2*, (I per Hydropunch • TPH-Extractable fuel fingerpnnt by <br /> ' and HP-3 location) EPA Method 3510, DHS LUFT <br /> • TPH-Purgeable, BTEX, EPA <br /> Methods 5030/DHS LUFT <br /> Channel Surface Sample I Sample a Volatile Organics by GUMS by EPA <br /> 8240 <br /> Acid/Base Neutral Organics GUMS <br /> by EPA 8270 <br /> * Insufficient water was collected to complete all sample analysis listed <br /> 20-1129-30/20178314 Page 7 of 13 <br /> ' © 1997, Kleinfel&r ]nL July 14 1997 <br />