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Sparge, Analytical Laboratory Division <br /> Mobile Laboratory Division <br /> Technology, Inc. Scientific Division <br /> ' vVith 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: 980420A <br /> ' Matrix: Water Dilution 1 1 <br /> Units: (mg/1) <br /> Spike LCS% LCSD% % <br /> Analyte Conc. LCS Recovery LCSD Recovery RSD <br /> ' Lead 10.0 9.59 95.9% 9.55 95.5% 0.42% <br /> ppm-parts per million=mgh=milligram per liter <br /> NO=Not Detected. Compountl(s)may be present at concentrations below the detection limit. <br /> Apr 22, 1998 <br /> L.Abellanosa, Inorganics Supervisor Date Reported <br /> ' SPARGER TECHNOLOGY ANALYTICAL LABORATORY.INC.IS CERTIFIED BY THE ST TE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING L BORATORY <br /> (Cahificatmn No.1614) <br /> 74201csw <br /> ' 3050 Fite Circle, Suite 112 9 Sacramento, California 95827 • (916) 362-8947 • FAX (916) 362-0947 <br />