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EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> mm <br /> 500 Giuseppe Court, Suite 9 a <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax#- (916) 7734784 <br /> OA/OC REPORT <br /> Attention Mr Matthew Taylor Date Analyzed 08-21-96 <br /> Wallace-Kuhl& Associates Matrix Water <br /> 3050 Industrial Blvd <br /> West Sacramento, CA 95691 <br /> Project 2938 0311444 Manposa <br /> TPHo <br /> PPB <br /> Reporting Limit 500 <br /> QA/QC PARAMETER <br /> Matrix Blank ND <br /> PERCENT RECOVERIES <br /> Laboratory Control Spike 79% <br /> Laboratory Control Spike Duplicate 91% <br /> PPS=Parts per billion=ug/l-=micrograms per Liter <br /> ND =Not detected. Compound(s)may be present at concentrations below the reporting limit <br /> Spikes&Spike Duplicates were each spiked with 5000 ug of motor oil standard. <br /> ANALYTICAL PROCEDURES <br /> TPHo—Total petroleum hvdrocarbons as oil(high boiling points)are measured by extraction using EPA Method 3510 followed by modified EPA <br /> Method 8015 with direct sample infection into a GC equipped with an FII} <br /> 08-26-96 <br /> Lab ratory Representative Date Reported <br /> I <br />