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<br /> 680 Chesapeake Drive - Redwood�rrra ,
<br /> 63
<br /> (415) 364-9600 - FAX(415) 364-9233
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<br /> �� ��RESNA Client Project ID: OWb365.02/Stockton, Smith Canal � fi
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<br /> 1710 Main Street Matrnc: Water
<br /> Escalon, CA 95320
<br /> ;qAttention: John Lane OC Sample Group: 3H2O211-12 Reported: Aug 16, 1993
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<br /> QUALITY CONTROL DATA REPORT
<br /> r=`t ANALYTE Ethyl-
<br /> !-__-i Benzene Toluene Benzene Xylenes
<br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020
<br /> Analyst: M.Nipp M.Nipp M.Nipp M.Nipp
<br /> Conn. Spiked: 10 10 10 30
<br /> Units: {rg/L u9/L ug/L pg/L
<br /> LCS Batch#: GBLK081193 GBLKO81193 GBLK081193 GBLK081193
<br /> Date Prepared: N.A N.A. N.A. N.A.
<br /> Date Analyzed: 8/11/93 8/11/93 8/11/93 8/11/93
<br /> Instrument I.D.#: GCHP-3 GCHP-3 GCHP-3 GCHP-3
<br /> LCS %
<br /> Recovery: 99 99 99 100
<br /> =;I Control Limits: 80-120 80-120 84-120 BG-120
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<br /> MS/MSD
<br /> Batch#: 31-140907 31-140907 3H40907 3H40907
<br /> Date Prepared: NA NA NA N.A.
<br /> Date Analyzed: 8/11/93 8/11/93 8/11/93 8/11/93
<br /> Instrument I.D.#: GCHP-3 GCHP-3 GCHP-3 GCHP-3
<br /> E.r Matrix Spike
<br /> % Recovery: 140 100 100 100
<br /> Matrix Spike
<br /> Duplicate%
<br /> Recovery: 100 100 140 103
<br /> Relative %
<br /> Difference: 0.0 0.0 0.0 3.0
<br /> SEQUOIA ANALYTICAL Please Note:
<br /> i The LCS is a control sample of known,Interferent free matrix that is analyzed using the same reagents,
<br /> 1 - preparation and analytical methods employed for the samples. The LCS%recovery data is used for
<br /> '.;a IvJ'f/JY validation of sample batch results. Due to matrix effects,the GC limits for MS/MSD's are advisory only
<br /> and are not used to acceptor reject batch results.
<br /> VickiaTag
<br /> Project Manager 3H2O201.WAT <8>
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