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110 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br /> McCampbell Analytical IncTelephone 925-798 1620 Fax 925 798-1622 <br /> h /Iwww mccaaipbell corn E-mail rnajn@=campbelI com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm - <br /> Matnx W WorkOrder 0308207 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 8170 Spiked Sample ID 0308196-004A <br /> Sample Spiked MS` MSD* MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L %Rec %Rec %RPD %Rec % Rec % RPD Low High <br /> TPH(htex)£ ND 60 115 123 682 107 105 149 70 130 <br />' MTBB ND 10 t00 112 107 106 103 3 15 70 130 <br /> Benzene 5 052 10 82 4 892 427 112 108 3 15 70 130 <br /> Toluene ND 10 102 109 621 104 101 2 55 70 130 <br />' Ethylbenzene ND 10 111 113 150 110 110 0 70 130 <br /> ?xylenes ND 30 103 103 0 100 100 0 70 130 <br />' %SS 104 100 105 113 733 103 101 2 13 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL wrth the following exceptions <br /> NONE <br /> MS=Matrix Spike MSp=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)!(MS+MSD)'2 <br /> *MS and/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 /> £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> ' N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentrabon in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> anala content <br /> 1 <br />