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0 (i rl <br /> 1 <br /> 10 2nd Avenue South HD7 Pacheco CA 94553 5°60 <br /> Inc.McCampbell Analytical, Teleplione 925-798-1620 Fax 925-798-1622 <br /> Website www mccampbell coin E-mail maina tnccampbell coin <br /> Z-4 <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrde r 0403245 <br /> EPAMethod SW8021B/8015Cm Extraction SW5030B BatchlD 10767 Spiked Sample ID W13242-009A <br /> Sample Spiked MS" MSD- IMS-MSD LCS LCSD LCS-LCSD Acceptance Cnteria(%) <br /> pg/L pg/L %Ree %Rec %RPD %Rec %Rec % RPD Low High <br /> TPH(btex)£ ND 60 106 100 5 53 102 102 0 70 130 <br /> MTBE i JND 10 105 112 603 100 103 223 70 130 <br /> Benzene — — ND 10 117 117 - 0 - 110 113 222 70 130 <br /> Toluene ND 10 107 110 217 103 104 i 0 926 70 130 <br /> Ethylbenzene ND 10 112 113 0712 109 110 1 22 70 130 <br /> Xylenes ND 30 100 100 0 96 100 408 70 130 <br /> -%SS WI 10 110 107 J 214 106 106 0 70 130 <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 /> 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)I((MS+MSD)1 2) <br /> "MS and I or MSD spike recoveries may not be near 100%or the RPDs near o%if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked orb)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 /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> N R N 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 /> DHS Certification No 1644dL1—QkQC Officer <br />