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t <br /> SEQUOIAANALYTICALANALYTICAL <br /> 680 ChesapeakeY <br /> (415) 364-9600 FAX (415) 364-9233 <br /> I RESNA Client Project ID F7120 93, Dunk Stop Stockton <br /> 3315 Almaden Expwy,, Suite 34 Matrix Water <br /> San Jose, CA 95118 <br /> Attention Rich Garlow CC Sample Group 3E19502 -04 Reported May 17, 1993 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Diesel <br /> Method. EPA 8015 <br /> Analyst- C tee <br /> Conc. Spiked 300 <br /> Units jag/L <br /> LCS Batch# DBLK051093 <br /> Date Prepared- 5/10/93 <br />' Date Analyzed. 5/11/93 <br /> Instrument I D # GCHP-5 <br /> LCS % <br /> Recovery 63 <br /> Control Limits 50-150 <br />' MS/MSD <br /> Batch #- D3E09102 <br /> Date Prepared 5/10/93 <br /> Date Analyzed 5/11/93 <br /> Instrument I D #. GCHP-5 <br />' Matrix Spike <br /> % Recovery 76 <br /> Matrix Spike <br />' Duplicate % <br /> Recovery: 85 <br /> Relative % <br />' Difference 11 <br /> SEQUOIA ANALYTICAL Please Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents <br /> r preparation and analytical methods employed for the samples The LCS%recovery data is used for <br />' ` { ` validation of sample batch results Due to matrix effects,the OC limits for MS/MSD s are advisory only <br /> Vickie Tag and are not used to accept or reject batch results <br /> P3E19501 RES <s> <br /> Project Manager <br />