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SIERRA LABORATORIES INC ' <br /> The Park Corporation Date Sampled: 1/23/97 <br /> 8084 Old Auburn Road Date Received. 1/29/97 <br /> Citrus Heights, CA 95610 Date Prepared 1/29197 <br /> Date Analyzed 1/29/97 <br /> Sierra Protect No 9701-241 Analyst SM <br /> Client Protect ID' 505945/USA-Lodi <br /> Sample Matrix Water Report Date 1/30/97 <br /> EPA METHOD 8020-13TEX/ <br /> EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> _(PURGE AND TRAP)_ - <br /> Concentration, pg/l <br /> Method ' <br /> Client Sample No S-1 S-2 Detection <br /> Limit, <br /> Sierra Sample No 01159 01160 µg/1 ' <br /> COMPOUNDS <br /> Benzene 110 990 05 <br /> Toluene 850 1100 05 ' <br /> Ethylbenzene 16 ND 05 <br /> Total Xylenes 1700 4600 05 <br /> MTBE ND ND 50 <br /> Gasoline Range 9600 14000 50 <br /> Dilution Factor 10 10 QC Limits <br /> % Surrogate Recovery <br /> 4-Bromofluorobenzene 87 97 70-125 ' <br /> Quality Assurance/Quality Control Data ' <br /> QC Sample ID 9701-200-00901 <br /> LCS Spike Spike Dup QC QC <br /> Compounds % Ree % Rec % Ree Limits RPD Limits <br /> Benzene 94 98 100 39-150 23 0-30 <br /> Toluene 96 100 102 46-148 27 0-30 <br /> Ethylbenzene 93 L00 102 32-160 27 0-30 <br /> Gasoline 92 196 184 50-150 13 0-30 <br /> ND means Not Detected <br /> Reporting Limit(RL)=Method Detection Limit(MDL)x Dilution Factor ' <br />