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1 <br /> LEVEL III Data Validation Report <br />' PROJECT: UniFirst Facility—Stockton, CA <br /> tLABORATORY: STL-- San Francisco, Pleasanton, CA <br /> LAB NUMBER: 2005-04-0574 <br />' SAMPLES: MW-4-10', MW-4-30', MW-3-10', MW-3-25', MW-2-16', MW-2-30' <br />' MATRIX: Soil <br /> Analysis Diesel <br />' 8015M <br /> Holding Time ✓ <br />' Surrogate Recovery ✓ <br /> MS/MSD NA <br />' LCS (Blank Spike) ✓ <br /> Method Blanks Note 1 <br />'• Duplicates NA m <br /> Tnp/Field/Equipment Blanks NA <br />' Reporting Limits ✓ <br /> [Chromatography Note 2 �^ <br /> t <br /> ✓ —QC criteria were met <br /> iNotes None <br /> 1 The method blank associated with sample MW-4-30' and MW-3-10' contained <br /> diesel at a concentration of 177 glkg Since the diluted samples did not contain <br /> diesel no action was taken <br />' 2 In all samples where diesel was reported, the laboratory stated that the actual <br /> material that was quantitated were unknown hydrocarbons in the diesel range <br />' Consequently, report concentrations of diesel in those samples were flagged "J," <br /> estimated <br />' Summer <br /> Based on this Level III validation, these data are usable as qualified for their intended purpose <br />' None of these data were refected <br />' URS Corporation R\GH\05dih151 doc <br />