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CHROMALAB, INC. Submission #: 2000-12-0334 <br /> Environmental Services(SD13) ' <br /> To: P.G.& E-SF Environmental Support& Services Test Method: 1664 <br /> Attn: Gary Pforr Prep Method: 1664 j <br /> Batch QC Report <br /> OH& Grease(Total) by EPA 1664 <br /> Laboratory Control Spike (LCSILCSD) Soil QC Batch#2000112/18-01.23 <br /> LCS: 2000112/18-01.23-002 Extracted: 12/18/2000 Analyzed 12/19/2000 <br /> 1 <br /> LCSD: 2000/12/18-01.23-003 Extracted: 12/18/2000 Analyzed. 12/19/2000 <br /> Compound Conc. [mg/Kg] Exp.Conc. [mg/Kg] Recovery[%] RPD Ctrl. Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%] Recovery RPD LCS LCSD <br /> Oil&Grease(total) 654 698 800 800 81.8 87.3 6.5 80-120 20 <br /> i <br /> F <br /> 4 <br /> n <br /> 1 <br /> I <br /> 1220 Quarry Lane'Pleasanton,CA 94566-4756 <br /> Telephone:(925)484-1919'Facsimile:(925)484-1096 <br /> Printed on: 12/19/2000 16:46 Page 10 of 10 ! <br />