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110 2nd Avenuc South #D7 Pacheco CA 94553-5560 <br /> Inc.McCampbell Analytical, Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 Website www mccampbell coin E-mail mai rr mccampbell coin <br /> QC SUMMARY REPORT FOR SW8021.B/8015Cm <br /> Matrix W WorkOrder 0403052 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 10598 Spiked Sample ID 0403051-002A <br /> Sample Spiked MS" MSD" MS-MSD LCS LCSD !LCS-LCSD Acceptance Criteria (%) <br /> Ng1L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)c ND 60 107 104 259 105 104 0 783 70 130 <br /> MTBE ND 10 100 — 10 i 1 54 99 t 108 849 70 130 <br /> bencene ND 10 _ 103 108 5 03 - 104 107 288 70 130 <br /> Toluene ND 10 973 104 631 98 5 101 287 70 130 <br /> Ethylbenzene ND 10 106 109 267 106 108 235 70 130 <br /> Xylenes ND 30 100 l00 0 963 100 374 70 130 <br /> %SS 105 10 100 102 I 1 31-- _97 3 967--1 0 625 - 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=t00'(MS- MSD)/((MS+MSD)12) <br /> *MS and!or MSD spike recoveries may not be near 10U%or the RPDs near o%tf a)the sample is inhomogenous AND contains significant concentrations of <br /> anaiyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> E TPH(btex)=sum of STEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> N/A=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 /> DHS Certification No 1644 QA/QC Officer <br />