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Sequoia 680 Chesapeake Drive Redwood City.CA 94063 (415) 364-9600 FAX(415)364-9233
<br /> 1900 Bates Avenue Suite L Concord,CA 94530 (510) 686.9600 FAX(510)686-9689
<br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0100
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<br /> s"Pacific Environmental Graup Client Project 1D: 310-001.03J0788, Bu'k Plant
<br /> >2025 Gateway Place, Suite 440 Matrix: Liquid n>
<br /> San Jose, CA 95110
<br /> Attention: Maree Doden CC Sample Group: 9409054 04, Ofi, 14, 18 R arced: Sep i6, 1994 €
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<br /> QUALITY CONTROL DATA REPORT .
<br /> ANALYTE Beryllium Cadmium Chromium Nickel
<br /> Method: EPA 200.7 EPA 200.7 EPA200.7 EPA200.7
<br /> Analyst: S.O'Donnell S.CYOonnell S.O'Donnell S.O'Donnell
<br /> MS/MSD
<br /> Batch#: 940926301 940926301 940926301 940926301
<br /> Date Prepared: 9/8/94 9/8/94 9/8/94 9/8/94
<br /> Date Analyzed: 9/8/94 9/8/94 9/8/94 9/8/94
<br /> Instrument E.D.#: MTJA-4 MTJA-4 MTJA-4 MTJA-4
<br /> Cone.Spiked: 1.0 mg/L 1.0 mg/L 1.0 mg/L 1.0 mg/L
<br /> Matrix Spike
<br /> %Recovery: 83 • 83 83 85
<br /> Matrix Spike
<br /> Duplicate%
<br /> Recovery: 90 89 89 92
<br /> Relative%
<br /> Difference: 8.1 7A 7.0 7:9
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<br /> 1
<br /> LCS Batch#:
<br /> Date Prepared:
<br /> Date Analyzed: '
<br /> Instrument l.D.#:
<br /> LCS%
<br /> Recovery:
<br /> [- %Recovery
<br /> -Control Limits: 75-125 75-125 75-125 75-125
<br /> Please Note:
<br /> The LCS is a control sample of known,Interferent free matrix that Is analyzed using the same reagents,
<br /> WA ANALYTICAL ' preparation,and analytical methods employed for the samples. The matrix spike Is an aliquot of sample
<br /> fortified with known quantities of specific compounds and subjected to the entire analyticaF procedure. h
<br /> the eovery of analytes from the matrix spike does not fall within specified control limits due to matrix
<br /> interference,the LCS recovery is to be used to validate the batch.
<br /> le°En A. Manning
<br /> Project Manager 9409054.PPP <3>
<br />
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