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' LEVEL III Data Validation Report <br /> PROJECT: UniFirst Facility — Stockton, CA <br />' LABORATORY: STL— San Francisco, Pleasanton, CA <br /> LAB NUMBER: 2005-04-0631 <br />' SAMPLES: MW-1-10', MW-1-30' <br />' MATRIX: Soil <br /> Analysis TPH-Gasoline <br />' 8015M <br /> Holding Time ✓ <br /> Surrogate Recovery ✓ <br /> MSIMSD Note 1 <br />' LCS (Blank Spike) ✓ <br /> Method Blanks ✓ <br /> lie Duplicates NA <br /> Trip/Field/Equipment Blanks NA <br />' Reporting Limits ✓ <br />' ✓ --QC criteria were met <br /> Notes 1 The sample spiked is from this project but from a different analytical group Mean <br /> percent recoveries and the RPD between the percent recoveries met QC <br /> acceptance criteria <br />' Summa <br />' Based on this Level III validation, these data are usable for their intended purpose None of <br /> • these data were qualified or refected <br /> URS Corporation R\GW105dih150 doc <br />