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1102nd Avenue South #D7 Pacheco CA 94553-5560 <br /> Inc.McCampbell Analytical, Telephone 925 798-1620 Fax 925 798-1622 <br /> /—A I Website www ntccampbell com E mail mainginccampbell cont <br /> 0 QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> W 0 Sample Matrix Water QC Matrix Water WorkOrder 0504049 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 15734 Spiked Sample ID 0504046-004A <br /> Sample Spiked MS MSD MS-MSD LCS LCSD LC�S-LCSD Acceptance Criteria(%) <br /> Analyte <br /> ug <br /> 1L pg1L % Rec % Rec %RPD % Rec °/a Rec °/� n RPD MS 1 MSD LCS/LCSD <br /> TPH(btex)£ ND 60 92 8 92 0 866 103 964 699 70- 130 70- 130 <br /> MTBE ND 10 939 90 4 10 103 102 1 57 70- 130 70- 130 <br /> Benzene ND 10 108 104 421 113 112 0 599 70- 130 70-130 <br /> Toluene ND 10 104 101 3 15 109 108 0 851 70- 130 70- 130 <br /> Ethylbenzene ND 10 105 I 102 3 48 i 109 108 1 63 70- 130 70. 130' <br /> Xylenes ND 30 91 3 i 90 3 1 1 10 96 95 3 0 697 70- 130 70 130 <br /> %SS 97 10 117 113 281 112 114 1 58 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 /> BATCH 15734 SUMMARY_ <br /> ample ID Date Sampled Date Extracted Date Anakyzed Sample ID date Sampled Date Extracted e An <br /> Datalyzed <br /> 504049-002A 4105105 4108105 4108145 702 AM <br /> MS m Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD M Laboratory Control Sample Duplicate RPD=Relative Percent Deviation <br /> %Recovery=100 (MS Sample)I(Amount Spiked) RPD=100'(MS- MSD)1((MS+MSD)1 2) <br /> MS 1 MSD spike recoveries and/or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is inhomogenous AND <br /> 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 FID <br /> cluttered chromatogram sample peak coelutes with surrogate peak <br /> 1A=not applicable or not enough sample to perform matrix spike and matrix spike duplicate <br /> N R=ana4 a 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 analyte content <br /> DHS Certification No 1644 QA/QC Officer <br />