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CHRQMALAB, INC. <br /> V=� Environmental Services(SDB) <br /> April 10 , 1998 Submission # 9803455 <br />' HARDING LAWSON (SACRAMENTO) <br /> Atten: Gary Haeck <br />' Protect - 38737 004 <br /> Received - March 30 , 1998 <br />' re. Surrogate report for 1 sample for Fuel Oxygenates by GC/MS <br /> analysis <br /> Method: EPA SW846 Method 8260 Modified <br />' Lab Run#. 12120 <br /> Matrix. SOIL <br /> % Recovery <br /> Sample# Client Sample ID Surrogate Recovered Limits <br /> 177966-1 HP-2SG D4-1, 2-DICHLOROETHANE 107 70-121 <br /> % Recovery <br /> Sample# OC Sample Type Surrogate Recovered Limits <br /> 180023-1 Reagent blank (MDB) D4-1, 2-DICHLOROETHANE 109 70-121 <br /> 180024-1 Spiked blank (BSP) D4-1, 2-DICHLOROETHANE 104 70-121 <br /> 0025-1 Spiked blank duplicate (BSD)D4-1, 2--DICHLOROETHANE 114 70-121 <br /> I <br /> ' V060 <br /> . UCSURFII 229 J1EWEI 10 Apr 9$12 5 <br /> ' 1220 Quarry Lane • Pleasanton, California 94566-4756 <br /> (510) 484-1919 • Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />