Laserfiche WebLink
j SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> t916) 921 9600 • FAX (916) 921 0100 <br /> Aegis Environmental Consultants Client Project ID Shell, 141 N EI Dorado, Stockton <br /> 1050 Melody Lane, Ste 160 Matrix Water <br /> Roseville, CA 95678 <br /> Attention Paul Graff QC Sample Goup 305-0353 Reported May 17, 1993 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method EPA 602 EPA 602 EPA 602 EPA 602 <br /> Analyst Chiaravalioti Chiaravalloti Chiaravalloti Chtaravalioti <br /> Concentration <br /> Spiked 10 10 10 30 <br /> LCS Batch# LCS051493 LCS051493 LCS051493 LCS051493 <br /> Date Prepared- 5/14/93 5/14/93 5/14/93 5/14/93 <br /> Date Analyzed 5/14/93 5/14/93 5/14/93 5/14/93 <br /> Instrument I D # HP 2 HP-2 HP-2 HP-2 <br /> is <br /> LCS <br /> Recovery 96 89 84 94 <br /> Control Limits 80-120 80-120 80-120 80-120 <br /> MS/MSD <br /> Batch# 3050403 3050403 3050403 3050403 <br /> Date Prepared 5/14/93 5/14/93 5/14/93 5/14/93 <br /> Date Analyzed 5/14/93 5/14/93 5/14/93 5/14/93 <br /> instrument I.❑ # HP 2 HP-2 HP-2 HP-2 <br /> Matrix Spike <br /> % Recovery 94 100 100 100 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery 95 100 100 100 <br /> Relative % <br /> Difference 11 00 00 00 <br /> 0 SEQUOIA ANALYTICAL Please Note <br /> The LCS is a control sample of known interferent free matrix that is analyzed using the same reagents <br /> preparation and analytical methods employed for the samples The LCS%recovery data is used for <br /> validation of sample batch results Cue to matrix effects,the CC limits for MS/MSD s are advisory only <br /> Wendy Amundsen and are not used to accept or reject batch results <br /> Laboratory Director 3050353 AEG <2> <br />