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110 2nd Avenue South,##D7 Pacheco,CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925 798-1622 <br /> IWebsite www mccampbell corn E-mail niatn@i scampbell com <br /> QC SUMMARY REPORT FOR SW8015C <br /> Matrix W WorkOrder 0406291 <br /> EPA Method SW3015C Extraction SW3510C BatchlD 12004 Spiked Sample ID NIA <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Cntena (%) <br /> pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low Htgh W <br /> TPH(d) N/A 7500 NIA N/A N/A 105 882 171 70 130 <br /> %SS N/A 2500 NIA NIA N/A 112 96 158 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> I NONE <br /> r <br /> I <br /> lie <br /> r <br /> r <br /> r <br /> r <br /> r MS=Matrix Spike MSD=Matnx Spike Duplicate,LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)I(Amount Spiked) RPD=100*(MS- MSD)I((MS+MSD)12) <br /> r *MS and 1 or MSD spike recoveries may not be near 100%or the RPDs near 0%it a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> r NR=analyte concentration in sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> lanalyte content <br /> DHS Certification No 1644 —QA/QC Officer <br /> r <br /> I <br />