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SIERRA LABORATORIES INC <br /> Park Corporation Date Sampled: 3/13/96 <br /> 8084 Old Auburn Road Date Received. 3/13/96 ' <br /> Citrus Heights, CA 95610 Date Prepared: 3/18-3/19196 <br /> Date Analyzed 3/18-3/19/96 <br /> Sierra Project No : 9603-123 Analyst- SM ' <br /> Client Protect ID• 5023-J3/Diamond Lumber <br /> Sample Matrix Water Report Date. 3/21/96 <br /> EPA METHOD 8020-BTEX/ <br /> EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) ' <br /> (PURGE AND TRAP) <br /> Concentration, µgfI <br /> Method ' <br /> Client Sample No : SRK-MWI SPK-MW2 SRK-MW3 BEI-MW1 Detection <br /> Limit, ' <br /> Sierra Sample No. 8486 8497 8488 8489 ligfl <br /> COMPOUNDS: <br /> Benzene ND ND ND 380 05 <br /> Toluene ND ND ND 20 05 <br /> Ethylbenzene ND ND ND 380 05 <br /> Total Xylenes ND ND ND 1000 05 <br /> Gasoline Range ND ND ND 10000 50 <br /> DilutLvn Factor 1 1 1 10 QC Limits <br /> % Surrogate Recovery <br /> 4-Bromo€luorobenzene 110 110 110 110 60-130 <br /> Quality Assurance/Quality Control Data <br /> LQC 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-I20 99 100 80-120 03 0-30 <br /> Gasoline 93 80-120 98 94 80-120 4 3 0-30 <br /> ND means Not Detected <br /> Reporting Limit(RL)=Method Detection Limit(MDL)x Dilution Factor <br /> i <br />