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819 Stoker Avenue,Suite 8 <br /> � Sequoia • . Saaamento,CA95834 <br /> (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical w .sequolalabs.com <br /> ' Kleinfelder-Stockton Project. Helena Chemical <br /> 2825 East Myrtle Street Project Number: 23-4850-60 Reported: <br /> Stockton CA,95205 Project Manager: Joe Zilles 04/22/02 13:14 <br /> Conventional Chemistry Parameters by APHA/EPA Methods - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC limits RPD limit Notes <br /> Batch 2040363-General Preparation <br /> ,Batch <br /> (2040363-BSI) _ _ _ Prepared:04/15/02 Analyzed:04/16/02 <br /> Total Kjeldahl Nitrogen 102 20 mg/kg 120 85 80-120 <br /> Matrix Spike(2040363-MSI) _ _ _ Source: P204100-01 Prepared:04/15/02 Analyzed:04/16/02 <br /> Total Kjeldahl Nitrogen 209 20 mg/kg 120 130 66 75-125 QM-07 <br /> Matrix Spike Dup(2040363-MSDI) Source: P204100-01 Prepared:04/15/02 Analyzed:04/16/02 <br /> Total Kjeldahl Nitrogen 213 20 mg/kg 120 130 69 75-125 2 35 QM-07 <br /> ii <br /> f <br /> 1 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain or <br /> custody document. This analytical report must be reproduced in its entirety. <br /> _ Page 23 of 24 _ <br /> I <br />