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=McCanmplbell <br /> 110 2nd Avenue South #D7,Pacheco,CA 94553-5560 <br /> Analytical, Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> b /lwww mcc hell com E-mail rnaui@niccaLbcl1 coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0401260 <br /> EPA Method SW8021618015Cm Extraction SW50308 BatchlD 10067 Spiked Sample 0 0401260-OO1A <br /> Sample Spiked MS* MSD" MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg1L % Rec %Rec %RPD %Rec %Rec % RPD Low High 1 <br /> TPH(btex)£ ND 60 95 955 0 443 101 937 799 70 130 <br /> MTBE ND 10 109 105 380 939 946 0 707 70 130 <br /> Benzene ND 10 100 101 0 846 966 101 411 70 130 <br /> Toluene ND 10 106 106 0 103 104 0 556 70 130 <br /> Ethylbenzene ND 10 104 105 0 603 102 104 2 50 70 130 <br /> Xylenes ND 30 107 107 0 103 107 317 70 130 <br /> %SS 114 10 109 109 0 110 111 1 15 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)/(Amount Spiked) RPD=100'(MS- MSD)/((MS+MSD)/2) <br /> *MS and/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 /> • WA=not enough sample to perforrn mmnx spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matnx or sample diluted due to high matrix or <br /> anal a content <br /> DHS Certification NO 1644 }�QA/QC Officer <br />