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Sequoia 680 w.nesapeake Dnve Redwood Gtr CA 94063 (4.j) 364-9600 FAX (415) 364 9233
<br /> (1) 1900 Bates Avenue,Swic L Concord,CA 94520 (510) 686-9600 FAX(510)686 %89
<br /> Analytical 819 Sinker Avenue,SLute 8 Sacmmento,CA 95834 (916) 921-9600 FAX(916)931 0100
<br /> � 653 24 n-Stockton
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<br /> l55 Capitol Mali, 6th Fir Mauve Water
<br /> Sacramento, CA 95814
<br /> kttentlon Laurie Depies CC Sample Goup 5020941=943 Reported W Mar 7, 1995
<br /> QUALITY CONTROL DATA REPORT
<br /> ANALYTE ENV*
<br /> Benzene Toluene Benzene Xylenes Diesel
<br /> Method: EPA 8020 EPA B020 EPA 8020 EPA 8020 EPA 8015M
<br /> Analyst: C Lee C Lee C Lse C Les C Lee
<br /> Concentration
<br /> Spiked: 10 ug/L 10 ug/L 10 ug/L 30 ug/L 300 ug/L
<br /> LCS Batch#: LCS022895 LCS022895 LCS022895 LCS022895 LCS022795
<br /> Date Prepared: 2/28/95 2/28/95 2/28/95 2/28/95 2/27/95
<br /> Date Analyzed: 2/28/95 2/28/95 2/28195 2/28/95 3/1/95
<br /> Instrument I.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-3B
<br /> LCS %
<br /> Recovery: 96 95 95 95 1v7
<br /> Control Limits: 75-125 75.125 75.125 M125 60-130
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<br /> MS/MSD
<br /> Batch # 5020824 5020824 50201124 5020824 800022795
<br /> Date Prepared- 2/28/95 2/28/95 2/28/95 2/28/95 2/27/95
<br /> Date Analyzed• 2/28/95 2/28/95 2/26/95 2/28/95 3/1/95
<br /> Instrument l.D #- GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-38
<br /> Matrix Spike
<br /> % Recovery' 93 93 95 94 107
<br /> Matnx Spike
<br /> Duplicate %
<br /> Recovery: 96 95 95 96 56
<br /> Relative %
<br /> Difference: 3.2 2.1 00 2.1 63
<br /> U0IA ANALYTICAL Nease Note
<br /> The LCS is a control sample of known,utterlerent free matrix that is analyzed using the same reagelft,
<br /> preparation and anaiy ad methods employed for the samples The LCS%recoverydata mused for
<br /> validation of sample batch results Due to matrix effects,the QC limits for MS/MSUs are advisory only
<br /> Linda C Schneider and are not used to accept or reject batch results
<br /> Project Manager
<br /> 5020941 ERS <3>
<br />
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