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SIERRA LABORATORIES INC ' <br /> The Park Corporation Date Sampled: 10/10/96 <br /> 8084 Old Auburn Road Date Received: 10/11/96 <br /> Citrus Heights, CA 95610 Date Prepared: 10/11/96 , <br /> Date Analyzed. 10111/96 <br /> Sierra Project No • 9610-113 Analyst- SM <br /> Client Project ID: 5059-J51USA Lodi <br /> Sample Matrix Water Report Date. 10/21196 <br /> EPA METHOD 8020-BTEX/ ' <br /> EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> (PURGE AND TRAP) ' <br /> - 7 7 7— -7- 7 Concentration;pgll- <br /> Method <br /> Client Sample No.. MW-7 MW-5 MW-6 MW-4 Detection <br /> Limit, <br /> Sierra Sample No • 17407 17408 17409 17410 p.g/l ' <br /> COMPOUNDS- <br /> Benzene ND ND ND ND 05 <br /> Toluene ND ND ND ND 05 ' <br /> lrthylbenzene ND ND ND ND 05 <br /> Total Xylenes ND ND ND ND 05 <br /> MTBE ND ND ND ND 50 <br /> Gasoline Range ND ND ND ND 50 <br /> Dilution factor 1 1 l 1 QC Limits r <br /> % Surrogate Recovery. <br /> 4-Bromofluorobenzene 89 83 88 84 70-125 <br /> Quality Assurance/Quality Control Data <br /> QC Sample ID• 9610-I 13-17407 <br /> LCS QC Spike Dup QC QC <br /> Compounds % Rec. Limits % Rec. Limits RPD Limits <br /> Benzene 98 97 95 39-150 23 0-30 , <br /> Toluene 91 102 100 46-148 25 0-30 <br /> Ethylbenzene 88 105 102 32-160 24 0-30 ' <br /> Gasoline 1102 1106 1106 150-150106 0-30 <br /> ND means Not Detected <br /> Reporting Limit(RL)=Method Detection Limit(MDL)x Dilution Factor <br /> i <br /> e <br />