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Inc. <br /> 1102nd Avenue South 447 Pacheco CA 94551-5560 <br /> int <br /> McCampbell Analytical, c. Telephone 925-798-1620 Fax 925-798-1622 <br /> -� Website www mccampbell com E mail main@mecampbell coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0405225 <br /> EP�Method SW80218/8015CM Extraction SW5030B BatchlD 11543 Spiked Sample ID 0405228-001A <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)a ND 60 103 103 i 0 102 973 427 70 130 <br /> MTBE - - ND �10 102 105 �! 237 101 101 0 - 70 130 <br /> Benzene ND 10 _ 112 114 1 42 113 110 271 70 130 <br /> Toluene ND 10 108 107 0 391 113 105 678 70 130 <br /> Ethylbenzene ND 10 112 115 1 2 10 116 110 539 70 130 <br /> - I <br /> Xylenes ND 30 100 107 645 107 100 645 70 130 <br /> %SS 995 10 103 102 127 102 102 0 70 130 <br /> All target compounds in the Method Blank of this extraction batch were Nil less than the method RL with the following exceptions <br /> NOME <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)1(Amount Spiked) RPD=100'(MS- MSD)1((MS+MSD)J 2) <br /> 'MS and 1 or MSD spike recoveries may not be near 100%or the RPI)s 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 vnth spike recovery <br /> £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes mth surrogate peak <br /> N/A=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 /> DNS Certification No 1644 4XQA/QC Officer <br />