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110 2nd Avenue South,#177,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798 1620 Fax 925-798-1622 <br />' h J/www mccampbell cam E-mail mainmccanTbell cam — <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm - <br /> Matrix W WorkOrder 0309221 <br />' EPA Method SW8021818015CM Extraction SW5030B BatchlD 8502 Spiked Sample ID 0309217-OD1A <br /> Sample Spiked MS' MSD' MS-MSD` LCS LCSD LCS-LCSD Acceptance Criteria M) <br />' pg/L pg/L % Rec % RBC % RPD %Rec %Rec % RPD Low High <br /> TPH(btex) ND 60 966 953 140 968 983 1 54 70 130 <br />' MTBE ND 10 107 108 0 541 96 1 946 1 57 70 130 <br /> Benzene ND 10 96 4 962 0 182 96 2 98 4 227 70 130 <br />' Toluene ND 10 96 6 963 0 298 97 1 989 1 88 70 130 <br /> Ethylbenzene ND 10 98 5 976 0 892 98 1 101 2 50 70 130 <br /> Xylenes ND 30 100 963 3 74 100 100 0 70 130 <br />' %SS 106 100 102 102 0 102 103 184 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 /> I <br /> MS=Matnx Spike MSD=Matrix 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)/(MS+MSD)'2 <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 /> anaSyte 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 coetutes with surrogate peak <br />' NIA=not enough sample to perform matrix spike and matnx spike duplicate <br /> NR=analyte concentration m sample exceeds spike amount for sad matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrtx or <br /> anal a content <br />