Laserfiche WebLink
680 Chesapeake Drive Redwood City CA 94063 (650)364 9600 FAX 1650)364-9Z33 <br /> Sequoia 404 N WISet Lane Walnut Creek CA 94598 (925)988-9600 FAX M25)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D --Petaluma CA 94954 — -(707)792-1865 FAX(707)792-034Z — <br /> 1551 industrial Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)232-961 Z <br /> Gettler-Ryan- Dublin Tient Project ID Unocal SS#5886, Stockton <br /> 6747 Sierra Court, Suite J Matrix Liquid <br /> Dublin, CA 94568 <br /> Attention Deanna Harding OC Sample Group 9060540-560 Reported Jun 17, 1999 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Benzene Toluene Ethyl Xylenes <br /> Benzene - <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst J Minkel J Minkel J Minkel J Minkel <br /> MS/MSO <br /> Batch# 9060546 9060546 9060546 9060546 <br /> Date Prepared 6/9/99 6/9/99 6/9/99 6/9/99 <br /> Date Analyzed 6/9/99 6/9/99 6/9/99 6/9/99 <br /> Instrument I D # HP 5 HP-5 HP-5 HP 5 <br /> Conc Spiked 20jug/L 20yg/L 20ftg/L 60ug/L <br /> Matrix Spike <br /> % Recovery 105 105 105 107 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery 95 95 95 67 <br /> Relative% <br /> Difference 10 10 10 46 <br /> LCS Batch# 5LCS06099 5LCS06099 5LCS06099 5LCS06099 <br /> Date Prepared 6/9/99 6/9/99 6/9/99 6/9/99 <br /> Date Analyzed 6/9/99 6/9/99 6/9/99 6/9/99 <br /> Instrument I D # HP 5 HP-5 HP 5 HP 5 <br /> LCS % <br /> Recovery 100 100 100 103 <br /> ecovery <br /> Control Limits 70-130 70-130 70-130 70-130 <br /> Please Note <br /> The LCS is a control sample of known interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL,#1271 preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> /} fortified with known quantities of specific compounds and subjected to the entire analytical procedure If • <br /> CL/�'f��tt the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recove is to be used to validate the batch <br /> Julianne Fegley <br /> Project Manager <br /> 9060540 GET <31> <br />