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110 2nd Avenue South 4D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 92$-798 1620 Fax 925-798-1622 <br />' http 11www mcewupbell com E-mail majn@mccampbell corn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> I <br /> Matrix W WorkOrder 0305251 <br />' EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 6929 Spiked Sample ID 0305237-011A <br /> Sample Spiked MS' MSD' MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria M <br /> Compound <br />' pglL pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)£ ND 60 977 982 0 510 987 982 0 483 70 130 <br /> MTBE ND 10 107 119 104 978 966 1 19 70 130 <br /> Benzene ND 10 95 1 963 1 25 958 934 262 70 i 130 <br /> Toluene NO 10 99 1 997 0 584 101 976 3 16 70 j 130 <br />' Ethylbenzene ND 10 994 100 0 682 99 1 98 3 0 856 70 I 130 — <br /> I <br /> Xylenes ND 30 103 107 3 17 103 100 328 70 130 <br />' %SS 104 100 100 100 0 100 100 0 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 /> I +r <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> 1 <br /> 1 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)I(Amount Spiked),RPD=100'(MS—MSD)J(MS+MSD)'2 <br /> 1 "MS and 1 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 specific sample matrix interferes with spike recovery <br /> £TPH(btex)=sum of BTEX areas from the FID <br />' #cluttered chromatogram sample peak coelutes with surrogate peak <br /> N/A=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 /> 1 <br />