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Sequoia 819$ nl54 <br /> Sacrameento,o,CAA 9588 34 <br /> (916)921-9600 <br /> Analytical FAX(916)921-01 OD <br /> www.sequoialabs.com <br /> Kleinfelder-Stockton Project:DSS-Tracy 5512627 <br /> 2825 East Myrtle Street Project Number.2913 LEO Reported: <br /> Stockton CA,95205 Project Manager.Francis Bean 01/17/06 15:10 <br /> Anions by EPA Method 300.0 - Quality Control <br /> Sequoia Analytical - Sacramento <br /> E <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Nates <br /> Batch 6010034-General Preparation/EPA 300.0 <br /> Blank(6010034-BLKI) Prepared&Analyzed: 12/29/05 <br /> Chloride ND 0.20 MgA <br />! Nitrate as NO3 ND 0.10 " <br /> E Orthophosphate as PO4 ND 0.50 QL06 <br /> Laboratory Control Sample(6010034-BSI) Prepared&Analyzed: 12/29/05 <br /> Nitrate as NO3 4.94 0.10 mg/I 5.00 99 90-110 <br /> Chloride 4.86 0.20 5.00 97 90-110 <br /> Orthophosphate as PO4 4,14 0,50 3.26 127 90-110 QL06 <br /> Matrix Spike(6010034-MSI) Source-5512627-01 Prepared&Analyzed: 12/29/05 <br /> Chloride 107 2,0 mgll 50,0 63.2 88 80-120 <br /> Nitrate as NO3 69.3 1.0 50.0 20.5 98 80-120 <br /> Orthophosphale as PO4 36.2 5.0 32,6 ND ]H 80-120 QL06 <br /> Matrix Spike(6010034-MS2) Source:S512630-01 Prepared: 12/29/05 Analyzed: 12/30/05 <br /> Nitrate as NO3 56.8 l.0 mg/I 50.0 7.65 98 80-120 <br /> Chloride 54.7 2,0 50,0 7.11 95 80-120 <br /> Orthophosphate as PO4 37.1 5.0 32.6 ND 114 80-120 QL06 <br /> Batch 6010227-General Preparation/EPA 300.0 <br /> Blank(6010227-BLKI) Prepared&Analyzed:01/13/06 <br /> Sulfate as SO4 ND 0.20 mg/1 <br /> Laboratory Control Sample(6010227-BSI) Prepared&Analyzed:01/13/06 <br /> Sulfate as SO4 9.93 0.20 mgll 10.0 99 90-110 <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 13 of 15 <br />