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SIERRA LABORATORIES INC ' <br /> 7F <br /> L <br /> Corporation Date Sampled: 1/24/97 <br /> Auburn Road Date Received 1/29197 <br /> ghts, CA 95610 Date Prepared- 1/30197 <br /> Date Analyzed 1130/97 <br /> ject No 9701-242 Analyst- SM <br /> tect ID: 5007431USA-Stockton#110atrix. Water Report Date 2/3/97 <br /> EPA METHOD 8020-13TEX/ ' <br /> EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> (PURGE AND TRAP) , <br /> Concentration, gg/l <br /> Method <br /> Client Sample No : MW-1-P MW-2-P MW-3-P MW-4-P Detection <br /> Sierra Sample N() 01 I61 Limit, <br /> 01162 01163 01164 µb/l ' <br /> COMPOUNDS <br /> Benzene ND 100 ND ND <br /> Toluene 0 5 <br /> ND 63 27 ND OS <br /> Ethylbenzene ND ND ND ND 05 <br /> Total Xylenes ND 20 ND ND 05 <br /> Gasoline Range ND 930 <br /> 110 ND 50 <br /> Dilution Factor 1 1 1 1 r <br /> % Surrogate Recovery QC Limits <br /> 4-Bromofluorobenzene 100 110 100 <br /> ]00 70-125 <br /> Quality Assurance/Quality Control Data <br /> QC Sample ID 9701-142 <br /> LCS Spike Spike Dup QC QC <br /> Compounds % Rec % Ree % Rec Limits RPD Limits <br /> Benzene 105 98 100 39-150 2 3 <br /> Toluene 0-'0 <br /> 108 100 102 46-148127 0-30 <br /> Ethylbenzene 105 I00 102 32-160 27 0-30 ' <br /> Gasoline 99 96 84 50-150 113 <br /> 0-30 <br /> ND means Not <br /> Detected <br /> Reporting Limit(RL)=Method Detection Limit(MDL)x Dilution Factor , <br />