Laserfiche WebLink
Mr. Mark Clardy <br /> ' Page 8 <br /> April 3, 2006 <br /> • will be recorded onto a chain-of-custody(COC) document that will accompany the samples to <br /> ' the laboratory and will designate the samples to be analyzed. <br /> Each borehole will be logged for lithological content using the Unified Soil Classification <br /> ' System guidelines, and for color,relative moisture content, and other observable distinguishing <br /> characteristics(i.e., color changes, debris,rootlets,or odor). <br /> ' Laboratory Analytical Procedures <br /> The samples will be submitted to a State-certified laboratory for analysis. Soil samples for pre- <br /> profiling purposes will be analyzed according to the requirements of the landfill. Leachibility <br /> tests will be conducted on soil samples according to the Designated Level Methodology for <br /> Waste Classification and Cleanup Level Determination published by the RWQCB in 1989. <br /> Based on TPH concentrations, selected soil samples may be analyzed for leachibility according <br /> to the soluble threshold leaching concentration(STLC)test using deionized water. STLC <br /> analyses will only be performed on selected samples with detections of TPH-d and TPH-cr. <br /> ' If you have any questions regarding this letter,please call me at(510)466-7161. <br /> Sincerely, <br /> ' SCIENCE APP ICA TIONS INTERNATIONAL CORPORATION <br /> \S 'j5Rf O GF01✓°^s <br /> Q MICHAEL HURD T <br /> No. 0068 <br /> ' <br /> Mae HG CERTIFIED <br /> Senior Project Manager HYDROGEOLOGIST <br /> ' EXP, 0 V/ <br /> Enclosures: 9TF OF CpUFo�<a\P <br /> Figure 1: Location Map <br /> ' Figure 2: Vicinity Map <br /> Figure 3: Site Map <br /> ' Attachment 1:Figures and Tables from November,2005 Investigation Report <br /> 1 <br />