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SiERRA LABORATORIES INC <br /> ' The Park Corporation Date Sampled: 4/26196 <br /> 8084 Old Auburn Road Date Received 5/1/96 <br /> Citrus Heights, CA 95610 Date Prepared 5/2196 <br /> Date Analyzed: 5/2/96 <br /> Sierra Protect No 9604-248 Analyst SM <br /> tClient Project ID: 5007-J3/USA Stockton#110 <br /> Sample Matrix- Water Report Date: 5/9/96 <br /> EPA METHOD 8020-BTEX/ <br /> EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> (PURGE AND TRAP) <br /> Concentration,µg/l <br /> ' Method <br /> Client Sample No : MW-5P MW-6P Detection <br /> Limit, <br /> ' Sierra Sample No : 7567 7568 lug/l <br /> COMPOUNDS <br /> Benzene ND ND 0 5 <br /> Toluene ND ND 0 5 <br /> Ethylbenzene ND ND 05 <br /> Total Xylenes ND ND 0 5 <br /> Gasoline Range ND ND 50 <br /> ' Dilution Factor 1 1 QC Limits <br /> %Surrogate Recovery <br /> ' 4-Bromofluorobenzene 95 95 60-130 <br /> ' 11QC Sample ID: 9604-248-7568 Quality Assurance/Quality Control Data <br /> LCS QC SpikeSpike Dup QC QC <br /> ' Compounds % Rec Lim ltS % Rec. % Rec Limits RPD Limits <br /> Benzene 83 80-120 91 89 80-120 1 4 0-30 <br /> Toluene 84 80-120 92 91 80-120 1 1 0-30 <br /> ' Ethylbenzene 83 80-120 89 88 80-120 08 0-30 <br /> Gasoline 92 80-120 100 108 80-120 80 0-30 <br /> ND means Not Detected <br /> ' Reporting Limit(RL)=Method Detection Limit(MDL)x Dilution Factor <br /> 1 <br />