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ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 0 <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> QA/QC REPORT <br />' Attention Mr Claudia Avila Date Analyzed 04-09-97 <br /> EMCON Matnx Sod <br />' 1433 North Market Boulevard <br /> Sacramento, CA 95834 <br />' Project 22605-101-01/IBC <br /> STLC <br />' Lead <br /> PPB <br /> Reporting Limit <br />' QA/QC PARAMETER <br /> Matnx Blank ND <br /> PERCENT RECOVERIES <br />' Matnx Spike 118% <br /> Matnx Spike Duplicate 1090/0 <br />' LaboratoryControl Spike 98/ <br /> Laboratory Control Spike Duplicate 106% <br />' ppb=parts per billion=ug/L=micrograms per liter <br /> Nb=Not detected Compound(c)may be present at concentrations below the reporting limit <br /> ANALYTICAL PROCEDURES <br /> STLC Lead--is measured by extraction using IltlM WET drg�sted by EPA Method 3010A followed by EPA Method 7420 <br /> Qt�m'- —I <br /> 04-10-97 <br /> a oratory epresentative Date Reported <br /> FWELGHENI ENVIRONMENTAL LABS ISCER-nFIED RN THE STATE OF CALIFORNIA <br /> DFPARTMENTOF HEAT TH SLRVICES AS A IIAZARDOUS N klTF TFST1Ni,I ABORATORY <br /> ((erllLcahon No I,no) <br /> i <br />