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Environmental Laboratories t Working to Restore Nature 4250E Albrae Street Fremont,CA 94538 Phone (510)623-0775 , (800)247-5223 FAX (510)651-8754 ANALYSIS REPORT � ('� 912319Z� 10201ab frm Attention Mr. Rich Chandler Date Sampled. 03-04-92 Delta Environmental Date Received: 03-06-92 3330 Data Dr. Suite 100 BTEX Analyzed 03-10-92 Rancho Cordova, CA 95670 TPHg Analyzed: 03-10-92 Project: AGS 19505-Ly Project #40-91-831 TPHd Analyzed: NR Station #695, Lodi Matrix. Water Ethyl- Total Benzene Toluene benzene Xylenes TPHg TPHd ppb ppb L p Rpb p42h Detection Limit. 0.5 0.5 0.5 0.5 50 100 SAMPLE Laboratory Identification i MW-1 260 32 5.8 88 3600 NR W1203178 MW-22 16 ND ND 16 120 NR WIM179 MW-25 ND ND 09 16 250 NR W12D3180 MW-27 16 12 09 15 530 NR W1203181 MW-24 ND ND ND ND ND NR W1203182 ppb = parts per billion = Kg/L W micrograms per titer ND = Not detected Compound(s)may be present at concentrations below the detection hind NR = Analysts not requested ANALYTICAL PROCEDURES BTEEX—Benzene,toluene,ethylbenzene,and total xylene isomers(BTEX)arc measured by extraction using EPA Method 5030 followed by analysts using EPA Method 8020/602,which utilizes a gas chromatograph(GC)equipped with a photoionisation detector (PID)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 analysts 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 fop/water,followed by modified EPA Method 8015 with direct sample injection into a GC equipped with an FID i March 13. 1992 Laboratory Representative Date Reported RESNA ENVIRONMENTAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY (Certification No 1211)