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110 2nd Avenue South #D7 Pacbeco CA 94553 5560 <br /> Inc.McCampbell Analytical, Telephone 925-798-1620 Fax 925 798-1622 <br /> ho I Website www rnecampbell cam E-mail main rweampbell cam <br /> ' QC SUMMARY REPORT FOR SW8021W8015Cm <br /> Matrix W WorkOrder 0406242 <br /> EPA Method SW8021B/8015Cm Extraction SW50303 BatchlD 11961 Spiked Sample ID 0406242-021A <br /> Sample Spiked MS- MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Cntr�ria(%) <br /> pg/L pg/L %Rec %Rec %RPD %Rec % Rec %RPD Low High <br /> TPH(btex)E ND 60 976 954 221 100 961 422 70 130 <br /> M-1 BE ND 10 98 1 937 465 994 936 604 70 130 <br /> Benzene ND 10 112 102 891 109 106 303 70 130 <br /> Toluene ND 10 108 949 125 104 100 3 87 70 130 <br /> Ethylbenzene ND 10 110 IH f 0 835 108 106 236 70 130 <br /> Xylenes ND 30 96 967 0 692 953 95 0 350 70 130 <br /> %SS 867 10 107 107 0 106 104 1 56 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 /> I <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`(NIS- MSD)I((MS+MSD)/2) <br /> MS and I 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 /> . 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 '1 QA/QC Officer <br />