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1 t0 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925 798-1622 <br /> http/1wwwwccampbcllcom E-mail mam r mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0305251 <br /> BPA Method SW8021 B/6015Cm Extraction SW5030B BatchlD 6935 Spiked Sample ID 0305262-007A <br /> Sample Spiked MS' MSD- MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> lig/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)£ ND 60 96 1 95 6 0 522 977 969 0 824 70 130 <br /> MTBE ND 10 969 101 411 919 941 242 70 130 <br /> Benzene ND 10 919 93 6 178 927 91 5 135 70 130 <br /> Toluene ND 10 97 973 0 285 964 959 0 598 70 130 <br /> Ethylbenzene Nf) 10 962 976 138 983 95 7 266 70 130 <br /> Xylenes ND 30 100 100 0 103 100 328 70 I 130 <br /> %SS 100 100 98 7 99 6 0 854 981 976 0 599 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 /> MS=Matrix Spike MSD=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%i1 a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that speaFic sample matrix interferes with spike recovery <br /> £TPH(btex)=sum of BTEK areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=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 />