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j SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City,CA 94063 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> Qera Project ID: W0623, Falcon Fre Station #2 <br /> i 1710 Main Street <br /> �Escalon, CA 95320 <br /> SAttention: John Lane CC Sample Group 205-179$ Reported: May 26, 1992 , <br /> ' QUAM Y CONTROL DATA REPORT <br /> ANALYTE Chicro- <br /> 1.14%chlorcethene Trichloroethene benzene 1-leptachlar Ndnn Dieldiin <br /> Method: EPA 8010 EPA 8010 EPA 8010 EPA 8080 EPA 8080 EPA 8060 <br /> Analyst.- M.La,khenan M.Laikhtman M L ukhtman A Glover A.Glover A.Glover <br /> Reporting Units: pg/kg pg/kg pg/k9 ug/kg pg/kg pg/kg <br /> Date Analyzed. May 2o, 1992 May 20, 1992 May 20, 1992 May S. 1992 May 6, 1992 May C 1992 <br /> CC Sample#: vBLK051s92 V13LK051592 VBLK051592 BUMSO492 BLK050492 BLKD50492 <br /> ' Sample Conc: N.D. N.D N D. N D. N.D N.D <br /> iSpike Conc. <br /> Added: 50 5o 50 20 20 80 <br /> Conc.Matrix <br /> Spike: 59 57 57 94 14 70 <br /> Matrix Spike <br /> ' %Recovery: 118 114 114 47 70 88 <br /> Conc. Matrix <br /> ' Spike Dup.: 63 60 60 10 15 74 <br /> Matra Spike <br /> ' Duplicate <br /> % Recovery: 126 120 120 50 75 93 <br /> ' Relative <br /> % Difference: 66 5.1 51 6.2 69 55 <br /> 1 <br /> EQUOIA ANALYTICAL %Reeaverf Conc of M S -Conc of Sample x 100 <br /> Spike Conc Added <br /> a Reiatrve%Difference Conc of M S -Conc of M S D x 100 <br /> (Conc ofMS + Conn ofMSD)/2 <br /> rolect Manager 2051798 WAY <7> <br />