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SEQUOIA ANALYTICAL
<br /> 680 Chesapeake Drive • Redwood City, CA 94063
<br /> (415) 364-9600 FAX(415) 364-9233
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<br /> RESNA Client Project ID: w0195.00,westem stone Products/Tracy Sampled: Oct 9, 1992
<br /> >'<1710 Main Street Sample Matra: Soil Received: Oct 13, 1992.
<br /> ' Escalon, CA 95320 Analysis Method: EPA 5030/8020 Reported: Oct 27, 1992.
<br /> nti it am a#: 210-1848
<br /> <Atte on: Gre Stahl F st S
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<br /> BTEX DISTINCTION
<br /> Reporting Sample Sample Sample
<br /> Analyte Limit I.D. I.D. I.D.
<br /> mg/kg 210-1848 210-1849 210-1850
<br /> SP2-A-B SP3-A-B SP4-A-B
<br /> Benzene 0.0050 N.D. N.D. 0.015
<br /> Toluene 0.0050 0.12 N.D. 0.053
<br /> Ethyl Benzene 0.0050 0.055 N.D. 0.045
<br /> Total Xylenes 0.0050 0.30 N.D. 0.12
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<br /> Quality Control Data
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<br /> Report Limit Multiplication Factor: 5.0 1.0 1.0
<br /> Date Analyzed: 10/14/92 10/15/92 10/15/92
<br /> Instrument Identification: GCHP-7 GCHP-1 GCHP-1
<br /> Surrogate Recovery, %: 77 112 113
<br /> (OC Limits = 70-130%)
<br /> Analytes reported as N.D.were not detected above the stated reporting limit.
<br /> SEQUOIA ANALYTICAL
<br /> ri L e
<br /> r ject Manager 2101840.wA7 <s>
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