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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 /> mca <br />' Website www cmpbell corn E mail main@mccaaipbell com <br /> . QC SUMMARY REPORT FOR SW8021 B/8015Cm <br /> Matrix W WorkOrder 0405479 <br /> EPA Method SW8021BI8015Cm Extraction SW5030B BatchlD 11749 Spiked Sample ID 0405476-006A <br /> Sample Spiked MS" MSD` MS-MSD' LCS LCS❑ LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg1L %Rec %Rec % RPD % Rec %Rec % RPD Low High <br /> TPH(btex)£ ND 60 98 939 426 98 1 987 0 587 70 130 <br /> MTBE ND t0 109 102 734 997 107 749 70 130 <br />' Benzene ND 10 119 107 101 108 111 297 70 130 <br /> Toluene ND 10 110 982 114 103 105 260 70 130 <br />' Ethylbenzene ND 10 114 106 689 107 110 286 70 130 <br /> Xylenes ND 30 100 953 478 963 967 0 345 70 130 <br />' %aSS 101 10 107 105 176 102 104 1 49 70 130 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the€rillowing exceptions <br /> 1 NONE <br /> lie <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />' MS=Matrix Spoke 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)I((MS+MSD)12) <br /> MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0%tf a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)of 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 /> NIA=not applicable or 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 /> analyte content <br /> 1 DHS Certification No 1644 T L— QA/QC Officer <br /> 1 <br />