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SIERRA LABORAToms iNc ' <br /> GHH Engineering, Inc. Date Sampled. 1116/98 ' <br /> 8084 Old Auburn Road,Suite E Date Received. 1/20198 . <br /> Citrus Heights, CA 95610 Date Prepared 1122198 ' <br /> Date Analyzed 1/22198 <br /> Sierra Project No.- 9801-156 Analyst SM <br /> Client Project ID. 5059 10/USA-LODI ' <br /> Sample Matrix: Water Report Date. 1/23198 <br /> EPA METHOD 8020-BTEXI , <br /> EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> (PURGE AND TRAP_) <br /> Concentration, µg11 <br /> Method <br /> Client Sample No : MW-3 MW-2 MW-1 MW-8 Detection <br /> Limit, <br /> Sierra Sample No : 793 794 795 796 µg/l , <br /> COMPOUNDS— <br /> Benzene ND ND ND ND 05 <br /> Toluene ND ND ND ND 05 , <br /> Ethylbenzene ND ND ND ND 05 <br /> Total Xylenes ND ND ND ND 05 <br /> MTBE ND ND ND ND 5 0 . <br /> Gasoline Range u w ND ND ND ND --50- <br /> Dilution Factor 1 1 1 l QC Limits ' <br /> %Surrogate Recovery <br /> 4-Bromofluorobenzene 94 94 95 1 96 1 70-125 <br /> Quality Assurance/Quality Control Data <br /> QC Sample ID: 9801-129-605 <br /> LCS QC Spike Spike Dup QC QC ' <br /> Compounds % Rec Limits % Rec % Rec Limits RPD Limits <br /> Benzene 99 80-120 93 94 39-150 107 0-30 ' <br /> Toluene 100 80-120 100 100 46-148 000 0-30 <br /> Ethylbenzene 102 80-120 100 100 32-160 0 00 0-30 <br /> Gasoline 108 80-120 1 101 103 50-150 2 0 0-30 <br /> ND means Not Detected <br /> Reporting Limit(PL)=Method Detection Limit(MDL)x Dilution Factor <br /> 1 <br />