Laserfiche WebLink
` Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> V07 <br /> lonviros, Inc Client Project ID Shell, 620 W Charter Way, Stockton, CA <br /> P O Box 259 Matrix Air <br /> Sonoma, CA 95476-0259 <br /> Attention Matt Donohue GSC Sample Group 6051499-1500 Reported May 28, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst V Owens V Owens V Owens V Owens <br /> Concentration <br /> Spiked 2 0 mg/m3 2 0 mg/m° 2 0 mg/m3 6 0 mg/m3 <br /> LCS Batch# LCS051796 LCS051796 LCS051796 LCS051796 <br /> Date Prepared 05/17/96 05/17/96 05/17/96 05/17/96 <br /> Date Analyzed 05/17/96 05/17/96 05/17/96 05/17/96 <br /> Instrument I D # GGHP-7 GCHP-7 GCHP-7 GCHP-7 <br /> LCS % <br /> Recovery 94 94 95 96 <br /> Control Limits 75-125 75-125 75-125 75-125 <br /> MS/MSD <br /> Batch # BS051796 85051796 BS051796 BS051796 <br /> Date Prepared 05/17/96 05/17/96 05/17/96 05/17/96 <br /> Date Analyzed 05/17/96 05/17/96 05/17/96 05/17/96 <br /> Instrument I D # GCHP-7 GCHP-7 GCHP-7 GCHP-7 <br /> Matrix Spike <br /> % Recovery 94 94 95 96 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery. 92 93 95 96 <br /> Relative% <br /> Difference 22 11 00 00 <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 /> �� f/VY4 <br /> preparation and analytical methods employed for the samples The LCS%recovery data is used for <br />�7LYinda <br /> validation of sample batch results Due to matrix effects,the OC limits for MS/MSG's are advisory only <br /> C Schneider and are not used to acceptor reject batch results <br /> Project Manager/Sacramento Laboratory <br /> 6051499 ENV <3> <br />