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110 2nd Avenue South 91]7 Pacheco CA 94553 5560 <br /> LAA I McCampbell Analytical Inc Telephone 925-798-1624 Fax 925-798 1622 <br /> hap//www mccampbell corn E-mail mam a mccampbell corn <br /> • <br /> QC SUMMARY REPORT FOR SW8021B/801SCm <br /> Matrix W WorkOrder 0311268 <br /> EPA Method SW8021 Bl8015Cm Extraction SW5030B BatchiD 9400 Spiked Sample ID 0311267-002A <br /> Sample Spiked MS' MSD' MS-MSD LCS LCSD 'LCS-LCSD Acceptance Criteria (%) <br /> pg/L pg/L % Rec %Rec % RPD % Rec %Rec ` % RPD Low High <br /> TPH(btex)� ND 60 986 103 3 98 968 942 282 70 130 <br /> MTBE ND 10 81 9 84 253 929 96 3 20 70 130 <br /> Benzene ND 10 906 907 0 179 934 97 !— 3 86 — 70 _ - —130 <br /> Toluene ND 10 962 96 5 0 306 959 995 1 374 70 130 <br /> Ethylbenzene ND 10 978 982 0 388 1174 101 3 20 70 130 <br /> Xylenes ND 30 100 100 0 100 100 0 70 130 <br /> %SS 101 100 102 102 0 101 104 256 70 130 <br /> A]I 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=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Controi Sample Duplicate RPD=Relative Percent <br /> Dev[ation <br /> %Recovery=100'(MS Sample)/(Amount Spiked) RPD=100'(MS- MSD)1((MS+MSD)1 2) <br /> 'MS and 1 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 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 sod matrix or exceeds 2x spike amount for water matnx or sample diluted due to high matrix or <br /> analyte content <br />