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' Sparger Analytical Laboratory Division <br /> —' <br /> 1� Mobile Laboratory Division <br /> Technology Inc. Scientific Division <br /> with Automation in Mina <br /> EPA Method 7420 <br /> Lead <br /> LCS/LCSD Recoveries <br /> Attention: Mr. Charles Metzinger Date Sampled: Apr 14, 1998 <br /> EMCON Date Received: Apr 14, 1998 <br /> 1433 North Market Blvd. Date Analyzed: Apr 21, 1998 <br /> Sacramento, CA 95834 Invoice# : 9349APR98 <br /> Project#: 20939-011-001 Project Name: San Joaquin Cty-DAW <br /> ' Client ID: LCS/LCSD LAB ID: 9804208 <br /> Matrix: Soil Dilution 1: 1 <br /> Units: (mg/kg) <br /> ' Spike LCS% LCSD% % <br /> Analyte Conc. LCS Recovery LCSD Recovery RSD <br /> ' Lead 1000 940 94.0% 946 94.6% 0.64% <br /> ppm=parts per million=mglkg=milligram per kilogram <br /> ND=Not Detected. Comppund)s)may be present at concentrations below the detection limit <br /> 1 <br /> ' Q , U Apr 22, 1998 <br /> L.Abellanosa, Inorganics Supervisor Date Reported <br /> SPARGER TECHNOLOGY ANALYTICAL IABORATORY,INC.IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No.1614) <br /> 74201css <br /> 3050 Fite Circle, Suite 112 • Sacramento, California 958 ? • (916) 362-8947 • FAX(916) 362-0947 <br />