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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbeli Analytical, Inc. Telephone 925-798-1620 Fax 925 798-1622 <br /> Website www mccampbelI coin Eanail mai rr mccmnpbeil coin <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0402163 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 10344 Spiked Sample ID 0402173-013A <br /> Sample Spiked MS• MSD' IMS-MSD LCS LCSD ILCS-LCSD Acceptance Criteria(%) <br /> NgIL lig! % Rec %Rec %RPD %Rec %Rec I % RPD Low High <br /> TPH(btex)£ ND 60 108 107 1 11 -- 102 --103 I 1 49 70 - 130 <br /> MTBEND 10 106 - 864 207 95 7 98 1 I 247 70 130 <br /> Benzene ND 10 107 _ 107 0 102 - 106 3 67 70 , 130 <br /> Toluene ND 10 102 105 341 985 101 223 70 130 <br /> Ethylbenzene - ND �W 109 111 156 105 107 1 2 05 70 130 — <br /> Xylenes _ ND 30 100 107 645 963 —100 I 3 74 70 130 <br /> %SS - --- -- 107 10 101 - 992 168 - 98 103 4- 4 84 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 /> LONE <br /> M <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)I(Amount Spiked} RPD=100`(MS- MSD)I((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 Fill <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 sod 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 />