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110 2nd Avenue South #D7,Pacheco,CA 94553-5560 <br /> Inc.McCampbell Analytical, Telephone 925-798-1620 Fax 925-798 1622 <br />' 24 Website www mccampbell com E mail rroin@mccampbell corn <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> W O Sample Matrix Water QC Matrix Water WorkOrder 0412541 <br />' EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 14499 Spiked Sample 1D 0412530-005A <br /> Analyte Sample!, Spiked MS` MSD' MS-MSD` LCS LCSD LCS-LCSD Acceptance Cnteria(%) <br />' Ng/L Ng/L % Rec %Rec % RPD %Rec %Rec %RPD MS 1 MSD LCS/LCSD <br /> TPH(btex)£ ND 60 968 101 458 97 1 933 392 70-130 70-130 <br />' MTBE ND 10 973 100 279 88 9 87 2 12 70- 130 70- 130 <br /> Benzene ND 10 99 105 5 87 93 7 929 0 960 70- 130 70- 130 <br /> Toluene ND 10 968 104 7 14 965 965 0 70- 130 70-130 <br />' Ethylbenzene ND 10 105 107 200 998 98 6 1 17 70- 130 70-130 <br /> Xylenes ND 30 91 7 95 3 57 100 997 0 334 70- 130 70-130 <br />' %SS 109 10 109 1 t 0 1 32 99 99 0 70-130 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/MSD spike recovenes and/or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is <br /> inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample s matrix interferes with the spike recovery <br /> £TPH(btex)=sum of BTEX areas from the FED <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 m sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> anal a content <br /> DHS Certification No 1644 QA/QC Officer <br />