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1 � <br /> EXCELCHEM l <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br />' REP <br /> QA/QC ORT <br />' Attention Mr CIaudio Avila Date Analyzed 03-09-97 <br /> EMCON Matrix Sod <br />' 1433 North Market Boulevard <br /> Sacramento, CA 95834 <br />' Project 22605-10101/IBC <br /> Lead <br />' PPM <br /> Reporting Limit 25 <br /> QA/QC PARAMETER <br />' Matrix Blank ND <br /> PERCENT RECOVERIES <br />' Matrix Spike 85% <br /> Matrix Spike Duplicate 94% <br />' Laboratory Control Spike 90% <br />' Laboratory Control Spike Duplicate 94% <br /> ppm=parts per million=mg hg=milligram per kilogram <br />' ND=Not detected Compound(s)may be present at concentrations below the reporting limit <br /> ANALYTICAL PROCEDURES <br />' Lead—is measured by digestion using EPA Method 3050 followed by EPA Method 7420 <br />' ratory 03-10-97 <br /> La oRepresentative Date Reported <br /> FXCELCHhNJ FN'-IRnNMFNTAI 1 ABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DFPAR710F1PP OF d,a I TH eFR%It P;Aq A HAZARDOUS%ASTE TrS11NG LABORATORY <br /> (l-�Uacanon No 17o0) <br />