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SIERRA LABORATORIES INC <br />' <br /> Park Environmental Corporation Date Sampled: 9/22195 <br /> ' 8084 Old Auburn Road,Suite E Date Received.- 9/26/95 <br /> Citrus Heights, CA 95610 Date Prepared: 9/27-9128/95 <br /> Date Analyzed: 9127,-9128/95 <br /> Sierra Project No.: 9509-153 Analyst: SM <br /> Client Project ID-. 5023-33/Diam Lumb -Manteca <br /> ' Sample Matrix: Water Report Date: 10/12/95 <br /> EPA METHOD 8020-BTEX/ <br /> EPA METHOD 8015 MODIFIED-GASOLINE RANGE HYDROCARBONS (C4-C12) <br /> (PURGE AND TRAP) <br /> ' Concentration, µg/1 <br /> SRK SRK SRK BEI Method <br /> Client Sample No.: MW-1 MW-2 MW-3 MW-1 Detection <br /> Limit, <br /> Sierra Sample No.: 8066 8067 8068 8069 Li <br /> t COMPOUNDS: <br /> Benzene ND I 1 ND 14 05 <br /> Toluene ND ND ND 20 05 <br /> Ethylbenzene ND ND ND 32 05 <br /> Total Xylenes ND 076 ND 8 1 05 <br /> Gasoline Range ND 65 ND 420 50 <br /> Dilution Factor I 1 I I QC Limits <br /> ' % Surrogate Recovery <br /> 1-Chloro-2-fluorobenzene 86 90 87 79 60-130 <br /> Quality Assurance/Quality Control Data <br /> QC Sample ID: 9509-133-7947 <br /> LCS QC Spike Spike Dup QC QC <br /> Compounds % Rec. Limits % Rec % Rec. Limits RPD Limits <br /> Benzene 86 80-120 89 91 39-150 28 0-30 <br /> Toluene 86 80-I20 188 90 46-148 2 2 0-30 <br /> EthyIbenzene 86 80-120 87 89 32-160 34 0-30 <br /> ' Gasoline 93 80-120 95 93 50-150 125 0-30 <br /> ND means Not Detected <br /> Reporting Limit(RL)=Method Detection Limit(MDL)x Dilution Factor <br />