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Environmental Laboratories_ —!MAALMAM <br /> 1� <br /> - Working To Restore Nature <br /> ANALYSTS REPORT <br /> 10201ab frm <br /> Attention: Mr Bill Channell Date Sampled: 09-17-92 <br /> RESNA Date Received: 09-18-92 <br /> 1710 Main Street BTEX Analyzed: 09-21-92 <br /> Escalon, CA 95320 TPHg Analyzed: 09-21-92 <br /> Project: 19509-L, Project #W0321 TPHd Analyzed: NR <br /> Knowles Property, Stockton Matrix: Water <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Wb 2pb Wb ppb <br /> Detection Limit 0 5 05 0.5 0.5 50 50 <br /> SAMPLE <br /> Laboratory Identification <br /> KP MW-8 ND ND ND ND ND NR <br /> W1209466 <br /> ppb = parts per billion = ug/L = micrograms per hter <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,ethylbenzene,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 phototontzation detector <br /> (PID)and a flame-ionization detector(FID) in series <br /> 1711g—Total petroleum hydrocarbons as gasoline (low-to-medium boiling points)are measured by extraction using EPA Method 5030, <br /> followed by analysis using modified EPA Method 8015,which utilizes a GC equipped with an FID <br /> TPHd—Total petroleum hydrocarbons as diesel(high boding points)are measured by extraction using EPA Method 3550 for soils and <br /> EPA Method 351((0 for water,followed by modified EPA Method 8015 with direct sample injection into a GC equipped with an FID <br /> l September 25, 1992 <br /> Laboratory RepreVentative Date Reported <br /> RESNA ENYIRONhIE1 MAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> Certification No 1211) <br /> 4250 A b-ag Str—r + Ff4mf— Cr", 0.1538 4 'lore {510i 523-0775 m (1230) 2.17-5223 • FAX (510) 551-875A <br />