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j SEQUOIA ANALYTICAL
<br /> 680 Chesapeake Drive • Redwood City, CA 94063
<br /> f (415)364-9600 FAX(415)364-9233
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<br /> I�ESNA Client Project ID: OW0365A2/Stockton, Smith�arial �� �� '<
<br /> 1710 Main Street Matra: Water
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<br /> Escalon, CA 95320 T"
<br /> == Attention: John Lane OC Sample Group: 31-12O211-12 Reported: Aug16, 1993
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<br /> f" QUALITY CONTROL DATA REPORT
<br /> ANALYTE Diesel
<br /> Method: EPA 8015
<br /> Analyst: C.Lee
<br /> Conc.Spiked: Sao
<br /> Units: pg/L
<br /> LCS Batch#: DBLKosom
<br /> Date Prepared: 8/9/93
<br /> Date Analyzed: 8/10/93
<br /> Instrument I.D.#: GCHP-5
<br /> LCS %
<br /> Recovery: 48
<br /> Control Limits: 50-150
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<br /> (. MS/MSD
<br /> -� Batch#: 3H17402
<br /> Date Prepared: 8/9/93
<br /> - Date Analyzed: 8/10/93
<br /> r,
<br /> i instrument I.D.#: GCHP-5
<br /> Matrix Spike
<br /> 9 %Recovery: 82
<br /> Matrix Spike
<br /> �<- Duplicate%
<br /> is Recovery: n
<br /> Relative%
<br /> Difference: 6.3
<br /> Sample Latch accepted due to MS/MSD results within acceptance limits.
<br /> >: )SEQUOIA ANALYTICAL Please Note:
<br /> t The LCS is a control sample of(mown,interferent tree matrix that Is analyzed using the same reagents,
<br /> preparation 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 CC limits for MS/MSD's are advisory only
<br /> Vickie Tagu and are not used to accept or reject batch results.
<br /> Project Manager 3H2O201.WAT <10>
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