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110 2nd Avenue South HD7 Pacheco CA 94553 5`60 <br /> I <br /> McCampbell Analytical, nc. Telephone 925-798-1620 Fax 925 798 1622 <br /> Website www mecampbeli com E mail mama me c,smpbell com <br /> • QC SUMMARY REPORT FOR SW8015C <br /> Matrix W WorkOrdE r 0403195 <br /> EPA Method SW8015C Extraction SW3510C satchlD 10720 Spiked Sample Ib Nlz, <br /> Sample Spiked MS* MSD* MS-MSD LCS LCSD jLCS-LGSD Acceptance Criteria(%) <br /> pg/L pg/L %Rec %Rec % RPD % Rec %°Rec %RPD —Low High <br /> TPH(d) NIA 7500 NIA N/A N/A94 9 95 9 0 980 70 130 <br /> %SS N/A 2500 N/A N/A NIA 103 105 247 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 /> NONE <br /> MS-Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100"(MS-Sample)/(Amount Spiked) RPD=100'(MS- MSD)I((MS+MSD)12) <br /> "MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specific sample matrix rnterferes with spike recovery <br /> N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> 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 /> analyte content <br /> DHS Certtfcatton No 1644 X=.-.QAjQC Officer <br />