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SSERRA LABORATORIES INC ' <br /> 1 <br /> The Park Corporation Date Sampled 3/28/97 ' <br /> 5100 East Hunter Avenue Date Received 412/97 <br /> Anaheim, CA 92807 Date Prepared 4/4/97 ' <br /> Date Analyzed 4/4/97 <br /> Sierra Project No 9704-023 Analyst SM <br /> Client Project 1D 5023-J1/D Lumber Manteca ' <br /> Sample Matrix Water Report Date 4/10/97 <br /> EPA METHOD 8020-BTEX/EPA METHOD 8015-Gasoline Range Hydrocarbons (C4-C12) r <br /> (Purge& Trap) <br /> Concentration,pg/1 <br /> SRI.- SRK- SRK- 8E1- SEI- BEI- Method <br /> Client Sample No MW-7 MW 8 MW1 MW2 MW3 MWI MW2 MW3 Detection <br /> Limit, ' <br /> Sierra Sample No 4911 4912 4913 4914 4915 4916 4917 4918 µg/1 <br /> COMPOUNDS ' <br /> Benzene 46 25 1 3 66 1 0 98 79 2500 05 <br /> Toluene ND 24 1 9 3 9 093 28 67 1900 05 <br /> Ethylbenzene 1 9 ' ND ND 45 ND 140 210 450 05 <br /> Total Xylenes 1 2 20 20 47 1 9 160 320 4200 05 <br /> Gasoline <br /> ND ND ND 310 ND 5300 8600 22000 50 <br /> Dilution Factor 1 1 ! 1 ! 1 [ 1007 QC Limits <br /> % Surrogate Recovery <br /> 70-125 r <br /> 4-Bromofluorobenzene 92 90 89 90 93 110 110 95 <br /> 1 <br /> Quality Assurance/Quality Control Data <br /> QC Sample 1D 9704-41-5029 ' <br /> LCS Spike Spike Dup QC QC <br /> Compounds % Ree %o Re °/6 R e c Limits RPD Limits <br /> Benzene 96 93 90 39-150 2 7 0-30 ' <br /> Toluene 98 98 92 46-148 63 0-30 <br /> Ethylbenzene 98 98 92 32-160 66 0-30 ' <br /> Gasoline 110 102 99 1 <br /> 50-150 3 7 0-30 <br /> ND moans Not Detected . <br /> 1 <br /> I <br />