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MATRIX ENVIRONMENTAL LABORA TORIES <br /> 3017KILGORE ROAD 9100 RANCHO CORDOVA, CA 95741 PHONE(916)63S-3962 FAX(916)63S-9331 <br /> 1 1 ANALYSIS: LEAD MATRIX SPIKE SUMMARY <br /> CLIENT: Walsh & Associates <br /> ' CONTACT: J. Clayton Date Sampled: N/A <br /> COC No: 4064 Date Received: N/A <br /> Project No: 1685--010 Date Extracted: 8/20/93 <br /> ' Matrix: LEACHATE Date of Analysis: 8/23/93 <br /> ' CONC CONC PERCENT <br /> COMPOUND SPIKED MEASURED RECOVERY RPD <br /> (mg/L) LCS LCSD LCS LCSD <br /> 1 <br /> LEAD 3 .6 3 .35 3 . 26 93% 91% 2% <br /> J <br /> LCS= LABORATORY CONTROL SPIKE <br /> LCSD-- LABORATORY CONTROL SPIKE DUPLICATE <br /> pRPD= RELATIVE PERCENT DIFFERENCE <br /> CONC= CONCENTRATION <br /> I 1 <br />; <br /> i <br /> 1 <br /> 1 <br /> 1 <br />