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j SEQUOIA( ANALYTICAL
<br /> 1900 Bates Avenue • Suite LM • Concord, Cafifornia 94520
<br /> (510) 686-9600 - FAX (510) 686-9689 y
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<br /> Engineering Science&Tech. Client Project 10: SEA-92-1/Arco#548/Stockton Sampled: Mar 24r:fiS:fi-
<br /> , 1992:;
<br /> 41-A Lafayette Circle Sample Descript: Extract of Soil Sample, SB1-0 Relogged: Mar 26, i 992
<br /> ,::Lafayette, CA 94549 Extracted: Mar 26, 1992;;
<br /> Y Attention: Brian Thomas Lab Number: 203-1136 Analyzed: 3/30-3/31/92-
<br /> Reported:
<br /> /30-3/31/92:Re orted: Apr 3, 1992
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<br /> ' TCLP METALS
<br /> EPA Detection Chronic Toxicity Regulatory Sample
<br /> lAnalyte HW No. Limit Reference Level Level Results
<br /> ' mg/L(ppm) mg/L(ppm) mg/L(ppm) mg/L(ppm)
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<br /> Cadmium................................. ......... 0006 0.010 0.01 1.0 N.D.
<br /> Chromium......................................... D007 0.010 0.05 5.0 N.D.
<br /> Lead.................................................... D008 0.0050 0.05 5.0 N.D.
<br /> Mercury............................................. D009 0.00020 0.002 0.2 N.D.
<br /> Selenium............................................ D010 0.0050 0.01 1.0 N.D.
<br /> 'Silver.................................................. D011 0.010 0.05 5.0 N.D.
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<br /> 'Analytes reported as N.D.were not present above the stated limit of detection.
<br /> �U01A ANALYTICAL
<br /> Scott A. Chieffo
<br /> ' Project Manager 2031136.EEE <z,
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