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110 2nd Avenue South,ND7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http/lwww mccampbell corn B-maul mam@mccampbell com <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix A WorkOrder 0301344 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 5747 Spiked Sample ID 0301343-011A <br /> Sample Spiked MS` MSD` MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(°h) <br /> Compound <br />' LIgIL pg/L %Rec %RPD %Rec %Rec % RPD Low high~ <br /> TPH(gas) NO 60 112 110 1 Ol Ill 117 563 80 120 <br />' MTBE ND 10 93 924 0 664 92 987 704 80 120— <br /> Benzene ND 10 114 Ill 2 79 113 110 272 80 120 <br />' Toluene ND 10 113 109 3 11 112 110 1 43 80 120 <br /> Ethylbenzene ND 10 Ill 107 279 110 108 214 80 120 <br /> Xylenes ND 30 113 Ito 299 113 110 299 80 120 <br />' %SS 95 6 100 973 964 0 950 995 95 6 304 80 120 <br /> EAllmpounds nn the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> 1 <br /> 1 <br /> I <br /> I <br /> I <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <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 /> I analyte content <br /> %Recovery=100`(MS-Sample)I(Amount Spiked) RPD=100`(MS--MSD)I(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 /> analyte relative to the amountspiked or b)if that specific sample matrix interferes with spike recovery <br />