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SIERRA LABORATORIES INC <br /> Park Corporation Date Sampled: 3/13/96 <br /> 8084 Old Auburn Road Date Received. 3113196 <br />' Citrus Heights, CA 95610 Date Prepared. 3118-3119196 <br /> Date Analyzed. 3118-3119/96 <br />' Sierra Project No : 9603-123 Analyst SM <br /> Client Protect ID. 5023-J3/Diamond Lumber <br /> Sample Matrix. Water Report Date. 3/21196 <br /> EPA METHOD 8020-BTEX/ <br /> ' EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> (PURGE AND TRAP) <br /> Concentration,µg11 <br /> ' Method <br /> Client Sample No - BEI-MW2 BEI-MW3 Tavel Blank Detection <br /> ' Limit, <br /> Sierra Sample NO., 8490 8491 8492 110/1 <br /> COMPOUNDS: <br /> ' Benzene 160 5000 ND 05 <br /> Toluene 72 5000 ND 05 <br /> Ethylbenzene 130 980 ND 05 <br /> Total Xylenes 300 6200 ND 05 <br /> ' Gasoline Range 5200 33000 ND 50 <br /> Dilution Factor 2 25 1C Limits <br /> % Surrogate Recovery Q <br /> ' 4-Bromofluorobenzene 120 110 110 60-130 <br /> ' Quality Assurance/Quality Control Data <br /> QC Sample ID 9603-123-5592 <br /> LCS QC Spike Spike Dup QC QC <br /> ' Compounds % Rec Limits % Rec % Rec Limits RPD Limits <br /> Benzene 98 80-120 97 98 80-120 10 0-30 <br /> ' Toluene 100 80-120 100 100 80-120 05 0-30 - <br /> Ethylbenzene 99 80-120 99 100 80-120 03 0-30 <br /> Gasoline 193 80-120 98 94 80-120 43 0-30 11 <br /> ' ND means Not Detected <br /> Reporting Limit(RL)=Method Detection Limit(MDL)x Dilution Factor <br />