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L <br /> Environmental Laboratories --- <br /> Working to Restore Nature + <br /> 42501 Albrae Street <br /> Fremont,CA 94538 <br /> 11 Phone:(510)623-0775 <br /> (800)247-5223 <br /> FAX:(510)651-8754 ANALYSIS REP RT <br /> Attention: "Ms. Tina LePage Date Sampled: 03-26-9210201ab-frm <br /> RESNA Date Received: 03-27-92 <br /> 1710 Main Street BTEX Analyzed: 04-02-92 <br /> Escalo CA 9532Q l <br /> � TPHg Analyzed: 04-02-92 <br /> Project: AGS 19509-1, Project #W0613 TPHd Analyzed: NR <br /> Tracy High School Matrix: Water <br /> Ethyl- Total 1 <br /> f <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> ppb Wb ppb ppb aph W <br /> Detection Limit: 0.5 0.5 0.5 0.5 50 100 <br />' SAMPLE <br /> I <br /> Laboratory Identification I <br /> } THS T-1 ND ND ND ND ND NR <br /> W1203685 <br /> THS T-2 ND ND ND ND ND NR <br /> W1203686 <br /> THS T-3 ND ND ND ND ND NR <br /> W1203687 <br /> I <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 />` BM—Benzene,toluene,eihylbcnzene,and total xylene isomers(STEN)are measured by extraction using EPA Method 50M <br /> followed by analysis using EPA Method 8020/602,which utilizes a gas chromatograph(GC)equipped with a photoionization 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, p <br /> followed by analysis using modified EPA Method 8015,which utilizes a GC equipped with an FID. <br /> 1711d—Totalpetroleum hydrocarbons as diesel(high boiling points)are measured by extraction using EPA Method 3550 for soils and I <br />` EPA Method 3510 for orate ,followed by modified EPA Method 8015 with direct sample injection into a GC equipped with an FID. <br /> April 9 1992 <br /> Laboratory Representative Date Reported <br /> RESNA ENVIRONMENTAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY i <br /> (Certification No. 1211) <br /> _ _.Y--- _ -.,.tee• _ —_ ------ <br />