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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 /> http l/tivww mscampbell com E-mail mam(a3mccampbel!corn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0303138 <br /> EPA Method SW8021Bl8015Cm Extraction SW5030B BatchlD 6121 Spiked Sample ID 0303137-001A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> Ng/L Ng/L °X. Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 943 954 l 17 105 116 103 80 120 <br /> MTBE ND to 100 102 1 58 914 833 922 80 120 <br /> Benzene ND to 115 110 389 91 933 245 80 120 <br /> Toluene ND 10 117 112 398 967 882 171 80 120 <br /> Ethylbenzene ND 10 116 112 338 942 100 591 80 120 <br /> Xylenes ND 30 113 113 0 923 933 1 08 80 120 <br /> %SS 972 100 953 946 0 702 962 986 244 80 120 <br /> All target compounds in the Method Blank ofthis extraction batch were ND less than the method R1,with the following exceptions <br /> I NONE <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 /> NIA=not enough sample to perform matnx spike and matrix spike duplicate <br /> N R=analyte concentration 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 /> analyte content <br /> %Recovery=100'(MS-Sample)1(Amount Spiked),RPD=100'(MS—MSD)I(MS+MSD)'2 <br /> *MS and I or MSD spike recoveries may not be near I OG%or the BPDs 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 interferes with spike recovery <br />