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Environmental Laboratories JKM=AW^!s <br /> Working To Restore Nature <br /> ANALYSIS REPORT <br /> Attention John Lane Date Sampled 03-12-93 <br /> RESNA Date Received 03-16-93 <br /> 1710 Main Street BTEX Analyzed 03-26-96 <br /> Escalon, California 95320 TPHg Analyzed 03-26-96 <br /> Project 110200L, Project W032700 TPHd Analyzed NR <br /> Knowles Property, Stockton Matrix Water <br /> Ethyl Total <br /> Benzene Toluene Benzene Xylenes TPHg TPHd <br /> ppb ppb ppb ppb ppb -- ppb <br /> Detection Limit 05 05 05 05 50 50 <br /> SAMPLE <br /> Laboratory Identification <br /> KP MW7 ND ND ND ND ND NR <br /> W1303307 <br /> KP MW8 ND ND ND ND ND NR <br /> W1303308 <br /> ppb=parts per bilhen=ug/L=micrograms per liter <br /> ND=Not detected Compound(s)maybe present at coocentrabons below the detection limit. <br /> NR=Analysis not requested. <br /> ANALYTICAL PROCEDURES <br /> BTEX Benzene,toluene ethylbeamne,and total xylene isomers(BTEX)are measured by extraction using EPA Method 5030 <br /> followed by analysis usmg EPA Method 8020/602,which utilizes a gas chromatograph(GC)equipped with a photolonctauon detector <br /> (PID)and a flame ionization detector(FID)in serves <br /> TPHg Total petroleum hydrocarbons as gasoline(low to medium boiling points)are measured by extraction using EPA Metbod 5030 <br /> followed by analysis using modified EPA Method 8015,whish utilizes a GC equipped with an FID <br /> TPHd Total petroleum bydrocarbons as diesel(high boiling points)ate measured by extraction using EPA Method 3550 far soils and <br /> EPA Method 355,10 for water,followed by modified EPA Metbod 8015 with direct sample injection into a GC equipped with an FID <br /> %"= ._ Aeni 1,1993 <br /> Laboratory Repj66ntative Date Reported <br /> RESNA ENVIRONMENTAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certificanon No 1211) <br /> 42501 Albrae Street 0 Fremont, CA 94538 • Phone (510) 623-0775 • (800) 247-5223 9 FAX (510) 651-8754 <br />