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Argon Laboratories <br /> Organics • Inorganics • On-Site <br /> 3008 McKittrick Ct., Suite N Ceres, CA 95307 • (209) 537-7836 <br /> GROUND ZERO ANALYSIS, INC. Date Sampled: 04/04/95 <br /> 3422 W. Hammer Ln. , Suite C-294 Date Received: 04/04/95 <br /> Stockton, CA 95219 Date Reported: 04/05/95 <br /> Project ID: 011 Matrix: Soil <br /> Lead (Pb) <br /> EPA Method 7420 <br /> Sample Sample Detection Results <br /> Number Description Limit <br /> ------ ----------- --------- ---------------------- <br /> PPm ppm <br /> 504011 SP1-(C1,C2 ) comp. 5 .0 ND <br /> 504012 SP1- (C3,C4 ) comp. 5 . 0 ND <br /> 504013 SP1- (C5 ,C6 ) comp. 5 . 0 ND <br /> 504014 SP1- (C7 ,C8) comp. 5 . 0 ND <br /> 504015 SP1- (C9,C10) comp. 5 . 0 ND <br /> QA/QC: 109% Spike Recovery 504015 <br /> 3 . 8% Duplicate Spike Deviation <br /> Note: ppm=mg/Kg <br /> Sample prepared by extraction method 3050 . <br /> ARGON LABORATORIES <br /> l "X--__ Lit <br /> Hiram Cueto <br /> Lab Director <br /> ARGON MOBILE LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> D.O.H.S.AS A HAZARDOUS WASTE TESTING LABORATORY(CERTIFICATION NO. 1873) <br />