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' 110 2nd Avenue South,#137 Pacheco,CA 94553 5560 <br /> McCampbell Analytical, jnC. Telephone 925-ell co 20 Fax 925-798-1622 <br /> Websete wrvw mccan>Qbell com E rruri mainQmccanipbell com <br /> I <br /> QC SUMMARY REPORT FOR SW$021B1$015Cm <br /> W O Sample Matrix Water <br /> QC Matrix Water WorkOrder 0410373 <br />' EPA Method SW8021B18015CM Extraction SW5030B BatchlD 13698 Spiked Sample ID 0410357-009A <br /> MSD* LCS LCSD LCS-LCSD Acceptance Criteria <br /> Sample Spiked MS* MSD" MS- (%} <br /> Analyte <br />' pg/L. pg/L %RBC %Ree %RPD %Rec %Rec % RPD LOW High <br /> TPH(btex)a ND 60 968 807 182 r945 <br /> 977 597 70 130 <br /> MTBE ND 10 977 103 5 31 986 419 74 130 <br /> Benzene ND 10 967101 412 102 619 70 130 <br /> Toluene ND 10 943 969 266 906 974 715 70 130 <br />' ND 10 995 101 238 94 100 635 70 130 <br /> Ethylbenzene <br /> Xylenes <br /> ND 30 863 903 453 813 90 101 70 130 <br />' %SS 115 10 104 105 101 108 108 0 74 130 <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 /> 1 <br />' MS=Matnx 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)I((MS+MSD)!2) <br /> MS/MSD spike recoveries and/or%RPD may fail outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is <br /> inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample's matrix interferes with the 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 />' anala content <br />' DHS Certification No 1644 <br /> L/—&QA/QC Officer <br />