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Environmental Laboratories_ AFW="AF,WAr-R . Working To Restore Nature ANALYSIS REPORT 10201ab frm Attention Mr. Bill Channell Date Sampled. 02-12-93 RESNA Date Received 02-19-93 1710 Main Street BTEX Analyzed: 02-22-93 Escalon, CA 95320 TPHg Analyzed- 02-22-93 Project. 11020 01., Project W0385.00 TPHd Analyzed NR Ekholm Property, Escalon Matrix Water Ethyl- Total Benzene Toluene benzene Xylenes TPHg TPHd ppb Xb ppb 2pb DDb Wm Detection Linut. 0.5 0.5 0.5 0.5 50 50 SAMPLE Laboratory Identification . EP MW-1 ND ND ND ND ND NR W1302361 ppb = parts per billion = ug/L = micrograms per liter ND = Not detected Compound(s)may be present at concentrations below the detection limit NR = Analysis not requested ANALYTICAL PROCEDURES BTEX—Benzene,toluene,ethylbenzene,and total xylene isomers(BTEX)are measured by extraction using EPA Method 5030 followed by analysis using EPA Method 8020/602,which utilizes a gas chromatograph(GC)equipped with a photoionaation detector (PIA)and a flame-ionization detector(FID)in series TPHg—Total petroleum hydrocarbons as gasoline (low-to-medium boiling points)are measured by extraction using EPA Method 5030, followed by analysis using modified EPA Method 8015,which utilizes a GC equipped with an FID TPHd—Total petroleum hydrocarbons as diesel(high boiling points)are measured by extraction using EPA Method 3550 for soils and EPA Method 3510 for water,followed by modified EPA Method 8015 with direct sample injection into a GC equipped with an FID _ February 26 1993 . Laboratory RePresentative Date Reported RESNA ENVIRONMENTAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESI'fNG LABORATORY (Certification No 1211) 42501 Albrae Street 0 Fremont, CA 94538 0 Phone (510) 623-0775 0 (800) 247-5223 • FAX (510) 651-8754