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SEANALYTICAL <br /> � 61UDIA <br /> 1900 Bates Avenge a Suite LM • Concord,California 94520 <br /> (510)686-9600 * FAX(510) 686-9689 <br /> rr„o...:rr'nG.n"'.,c�i vs.e::�,i«4 kc-w"s?Y'`•.c:v;hk�`^S'tr;°'i,�,'�v n° {fr r,'�`'+F y..'.:.� �..Y..re <br /> ux As"oclates Client i�roJecf YCl Arcot S %Sfockton <br /> 1855 Gateway Blvd , Ste 770 Matrix <br /> Concord, CA 94520 <br /> Attention Paul Supple QC Sample Group 308-0860 Reported Sep 8, 1993 <br /> QUALITY CONTROL DATA REPORT <br /> ANA YTE <br /> $TLC Lead <br /> Method- EPA 7421 <br /> ' Analyst: 1313 <br /> Conc. Spiked 10 <br /> Units mg/L <br /> ' LCS Batch#. BLK09M93MS <br /> Date Prepared. 9/6/93 <br /> ' Date Analyzed 9/7/93 <br /> instrument LD #: SpectrAA-4o0 <br /> LCS. % <br /> Recovery. so <br /> Control Limits: 75-125 <br /> MS/MSD <br /> I <br /> Batch# BLK090693MS <br /> Date Prepared 9/6/93 <br /> IDate Analyzed- 9/7/93 <br /> nstrument I D #: SpectrAA-400 <br /> Matrix Spike <br /> ' %Recovery ao <br /> Matrix Spike <br /> ' Duplicate % <br /> Recovery 84 <br /> Relative % <br /> ' Difference 49 <br /> tE101U0g1ANYTICAL Please Note <br /> The LCS Is a control sample of known,interferent free matrix that is analyzed using the same reagents, j <br /> reparation and analytical methods employed for the samples The LCS%recovery data Is used for <br /> validation of sample batch results Due to matrix effects,the QC limits for MS/MS[Ys are advisory only <br /> Kenneth K F Lee and are not used to aompt or refect batch results <br /> Laboratory Director <br />' 3080860 ROTI <2> <br />