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Environmental Laboratories <br /> Working To Restore Nature <br /> ANALYSIS REPORT <br /> 10MIab.frm <br /> Attention- Ms Tina LePage Date Sampled: 06-16-92 <br /> RESNA Date Received 06-19-92 <br /> 1710 Main Street BTEX Analyzed: 06-29-92 <br /> Escalon, CA 95320 TPHg Analyzed 06-29-92 <br /> Project. AGS 19509-1 , Project #W0376 TPHd Analyzed- 06-30-92 <br /> Chevron, Stockton Matrix. Water <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Ppb 2pbWb Nb Wb Wb <br /> Detection Limit: OS 05 05 05 50 50 <br /> SAMPLE <br /> Laboratory Identification <br /> CS MW-1 ND 06 ND 09 160 ND <br /> W1206467 <br /> CS MW-2 ND ND ND ND ND ND <br /> W1206468 <br /> ppb = parts per billion - ug/L = micrograms per liter <br /> ND = Not detected Compound(s)may be present at concentrations below the detection limit <br /> NR = Analysis not requested <br /> ANALYTICAL PROCEDURES <br /> BTEX—Benzene,toluene,ethyfbenzene,and total xylene isomers(BTEX)are measured by extraction using EPA Method 5030 <br /> followed by analysis using EPA-Method 8020/602,which utilizes a gas chromatograph(GC)equipped with a phototonrratton detector <br /> (PID)and a flame-ionization detector(FID)in series. <br /> TPHg--Total petroleum hydrocarbons as gasoline(low-to-medium boiling points)are measured by extraction using EPA Method 5030, <br /> followed by analysts using modified EPA Method 8015,which utilizes a GC equipped with an FID <br /> Wild—Total petroleum hydrocarbons as diesel(high boiling points)are measured by extraction using EPA Method 3550 for soils and <br /> EPA Method 3510 for water,followed by modified EPA Method 8015 with direct sample injection into a GC equipped vAth an FID <br /> July 6. 1992 <br /> Laboratory Re esentative Date Reported <br /> • RE_wA ENVIRONMENPAL LABORATORY 15 CERTIFIED BY THE STATE OF CAUFORNI A' <br /> DEPARTMENT'OF HEALTH SERVICES ASA HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1211) <br /> 42501 A16rae Street• Fremont, CA 94538 • Phone (510) 623-0775 • (800) 247-5223 41 FAX (510) 651-8754 <br />