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1 110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925 798-1622 <br /> i ' http//www mccampbell com E mail mun(rnccampbell com <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matnx W WorkOrder 0303329 <br /> ' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 6235 Spiked Sample 10 0303332-004A <br /> Sample Spiked MS* I MSD* IMS-MSD-1 LC5 LCSD LCS-LCSD Ameptance Criteria(%) <br /> Compound <br /> ' 1.19/1- pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low I High <br /> TPH(gas) ND 60 117 116 0 160 946 922 262 80 120 <br /> ' MTBE ND 10 113 115 1 82 972 942 315 80 120 <br /> Benzene ND 10 110 109 145 117 109 724 80 120 <br /> Toluene ND 10 101 100 0 996 114 111 272 80 120 <br /> ' Ethylbenzene ND 10 112 111 0 873 117 111 537 80 120 <br /> Xylenes ND 30 107 107 0 113 110 299 80 120 <br /> ' %SS 976 t00 976 95 9 175 928 927 00645 80 120 <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 /> 1 <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 matnx spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sad matnx or exceeds 2x spike amount forwater matrix or sample diluted due to high matrix or <br /> ' analyte content <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%rf a)the sample is inhomogenous AND contains significant concentrations of <br /> ' analyte relative to the amount spiked,or b)if that specrfic sample matrix interferes with spike recovery <br />