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Sequoia 819 Striker Avenue,Suite <br /> ® Sacramento,CA 9583 <br /> e } a 1 (916)921-9600 <br /> L Analytical FAX(916)921-010- <br /> Analytical <br /> )921-010 <br /> www.sequoislabs.cod <br /> Kleinfelder-Stockton Project: Northbrook S308269 <br /> 2825 East Myrtle Street Project Number: 34202.E01 Reported: <br /> Stockton CA,95205 Project Manager: Joe Zilles 08/20/03 17:53 <br /> Total Metals by EPA 6000/7000 Series Methods <br /> Sequoia Analytical- Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> J <br /> B2-24"(5308269-01)Soil Sampled: 08/13/03 08:45 Received: 08/13/03 16:50 <br /> Cadmium ND 1.0 mg/kg 4 3080192 08/14/03 08/15/03 EPA 6010B <br /> Chromium 20 1.0 " " 1. " 1. " <br /> Hexavalent Chromium 4.3 2.5 10 3080254 08/18/03 08/18/03 EPA 7196A <br /> Nickel 15 4.0 4 3080192 08/14/03 08/15/03 EPA 6010B <br /> Lead ND 10 <br /> Zinc 58 1.0 " <br /> B3-24"(S308269-02)Soil Sampled: 08/13/0309:10 Received:08/13/03 16:50 <br /> Cadmium ND 1.0 mg/kg 4 3080192 08/14/03 08/15/03 EPA 6010B. J <br /> Chromium 19 1.0 11 11 " If I. <br /> Hexavalent Chromium ND 1.2 5 3080254 08/18/03 08/18/03 EPA 7196A <br /> Nickel 17 4.0 4 3080192 08/14/03 08/15/03 EPA 6010B 1. <br /> Lead ND 10 " J <br /> Zinc 36 1.0 <br /> 134-24"(S308269-03)Soil Sampled:08/13/03 09:20 Received:08/13/03 1.6:50 <br /> Cadmium ND 1.0 mg/kg 4 3080192 08/14/03 08/15/03 EPA 6010B <br /> Chromium 22 1.0 " " 11 11 " „ <br /> Hexavalent Chromium ND 1.2 5 3080254 08/18/03 08/18/03 EPA 7196A 1 <br /> Nickel 20 4.0 4 3080192 08/14/03 08/15/03 EPA 6010B J <br /> Lead ND 10 <br /> Zinc 34 1.0 <br /> B5-24"(S308269-04')Soil Sampled: 08/13/03 1.0:15 Received:08/13/03 16:50 <br /> Cadmium ND 1.0 mg/kg 4 3080192 08/14/03 08/15/03 EPA 6010B <br /> Chromium 20 1.0 1. " " 11 11 fff <br /> Hexavalent Chromium ND 1.2 5 3080254 08/18/03 08/18/03 EPA 7196A I <br /> Nickel 18 4.0 4 3080192 08/14/03 08/15/03 EPA 6010B J <br /> Lead ND 10 <br /> Zinc 34 1.0 <br /> J <br /> J <br /> Sequoia Analytical -Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. Unless otherwise stated, results are reported on a wet weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> Page 6 of 29 <br />