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' SIERRA LABORATORIES INC <br /> The Park Corporation Date Sampled: 9/24/96 <br /> 8084 Old Auburn Road, Suite E Date Received: 9126196 <br /> ' Citrus Heights, CA 95610 Date Prepared: 1013196 <br /> Date Analyzed: 10/3/96 <br /> Sierra Project No.: 9609-266 Analyst: SM <br /> ' Client Project ID- 5023-J3/Diamond Lumber Manteca <br /> Sample Matrix. Water Report Date: 10/8/96 <br /> 1 <br /> EPA METHOD 8020-BTEX/ <br /> ' EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> (PURGE AND TRAP) <br /> Concentration, µg11 <br /> Method <br /> Client Sample No.: BEI-MWI BEI-MW2 BEI-MW3 Detection <br /> ' Limit, <br /> Sierra Sample No.: 1 16428 1 16429 1 16430 µg11 <br /> COMPOUNDS: <br /> ' Benzene 75 60 7500 05 <br /> Toluene 65 93 3000 05 <br /> MEthylbenzene 60 80 1100 05 <br /> Total Xylenes 60 190 6900 05 <br /> MTBE ND ND ND 50 <br /> Gasoline Range 3500 5300 55000 50 <br /> ' Dilution Factor 5 1 50 QC Limits <br /> % Surrogate Recovery <br /> 4-Bromofluorobenzene 94 110 90 60-130 <br /> Quality Assurance/Quality Control Data <br /> QC Sample ID: 9610-008-16707 <br /> LCS QC Spike Spike Dup QC QC <br /> ' Compounds % Rec Limits % Rec. % Rec Limits RPD Limits <br /> Benzene 88 80-120 96 94 39-150 21 0-30 <br /> Toluene 89 80-120 100 99 46-148 05 0-30 <br /> ' Ethylbenzene 3980-120 102 100 32-160 2 5 0-30 - <br /> Gasoline 95 180-120 1117 109 150-150.16 6 0-30 <br /> ' ND means Not Detected <br /> Reporting Limit(RL) =Method Detection Limit(MDL) Y Dilution Factor <br /> 1 <br />