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' SIERRA LABORATORIES INC <br /> 1 <br /> f <br /> ' Park Environmental Corporation Sierra Client No 10000-92 Date Sampled. 0989/92 <br /> 2140 Professional Drive,Suite 130 Sierra Project No. SP-310-92 Date Received- 10141!92 <br /> Roseville,California 95661 Client Project No. 1125 J1 Date Prepared 10/01.10/06(9 <br /> Cllent Project Date Analyzed- 10/151-10M6/92 <br /> N{A j <br /> SamplePreparatlon SolventExtractlon <br /> ' Sample Analysis. 80154v4odtfied(TPNH as Diesel-CADHS LUFT) Report Date. .10109192 <br /> ' Matri-JSplke Duplicate Report <br /> Sample Type Liquid <br /> TPH-Dtesel (Range) <br /> Matrix Spike 89 (50-150) <br /> Recovery(`70) <br /> Matrix Spike Duplicate 110 (50-150) <br /> Recovery(%) <br /> ' Relative Per-cent 21 (0-30) <br /> Difference <br /> Quality Control Reference Number C001.100592(1)glb0007-200-201 <br />