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EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 0 <br /> ' Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br />' <br /> QA/0C REPORT <br /> 1 <br /> Attention- Mr John Juhrend TPHd Analyzed 05-10-95 <br />' GEOCON Matrix Water <br /> 3235 Sunrise Blvd., #6 <br /> Rancho Cordova, CA 95742 <br /> Project S8100-06-11A <br />' TPHd <br /> PPB <br /> Reporting Limit. 50 <br />' QA/QC PARAMETER <br /> Matrix Blank ND <br />' PERCENT RECOVERIES <br /> Laboratory Control Spike 70% <br />' Laboratory Control Spike 71% <br /> Duplicate <br /> 1 - <br /> PPB = Pans per billion = ug/L = micrograms per Liter <br /> 1 ND = Not detected Compound(s) may be present at concentrations below the reporting limit <br /> 5p*m&Sptlu:Duplicates were each spitted with 5000 ug of dime[standard <br /> ANALY11CAL PROCIUDURES. <br /> 1YI Id—Total petroleum hydrocarbons as diesel(high boding points)arc measured by extraction usmg EPA Method method 3510,followed <br /> by modified EPA Method 8415,with direct sample injection into a GC equipped with do FID <br /> 05-17-95 <br /> ob rat7ory Representative Date Reported <br /> EXCELCIIEM ENVIRONMENTAL LABS 1S CERTIFIED BY TIIE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTII SERVICES AS A IIAZARDOUS WASI E THFI ING LABORAT ORY <br /> (Certification No 1760) <br />