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tl) Sequoia <br /> 680 Chesapeake Dnve 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 /> frilly Analytical 819 Stinker Avenue Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> ax <br /> Blaine Tech Services, Inc Y Client Project ID Y Chevron 9-4183/960515-A2 <br /> :985 Timothy Drive Matra Liquid ; <br /> `San Jose, CA 95133 <br /> {gAttention Jim Keller Work Order# 9605036-03 N Reported May 29, 1996.{ <br /> n V6vr.h,}` • ,n 4 . [ , rr. ryn , v r ' ,r,v .r.v '. rn „ ,} , r.., , r1 '. yr i rr r,l 4 r vwt rrry ,r{ <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Phenol 2-Chlorophenol 1,4-Dichloro N-Nitroso-Dl- <br /> benzene N-propylamine <br /> QC Batch#: MSo522968270EXA MW5229W270EXA MS0522968270EXA MS0522969270EXA <br /> Analy Method: EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Prep Method: EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst B Pitamah B Pitamah B Pitamah 8 Pitamah <br /> MS/MSD#: 9605A2603 9605A2603 9605A2603 9605A2603 <br /> Sample Conc N D N D N D N D <br /> Prepared Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I D # F4 F4 F4 F4 <br /> Conc Spiked. 200 pg/L 200pg/L 20oug/L 200 Ng/L <br /> Result 72 150 140 160 <br />• MS % Recovery 36 75 70 80 <br /> Dup Result: 73 150 150 160 <br /> MSD %Recov • 37 75 75 80 <br /> RPD 14 00 69 00 <br /> RPD Limit 0-20 0.15 0-13 0-18 <br /> LCS #. BLK052296 BLK052296 BLK052296 BLK0522% <br /> Prepared Date: 5/2x/96 5/22/96 5/22/96 x/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I.D.#. F4 F4 F4 F4 <br /> Conc Spiked 2ooug/L 200pg/L 200 Ng/L 2Wpg/L <br /> LCS Result 78 160 150 170 <br /> LCS % R@COV.' 39 80 75 85 <br /> LCS 12-110 27-123 36.97 41-116 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> esALYTICAL <br /> 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 /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> P **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> PPage 1 of 3 9605C36 BLA <5> <br />