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MA TRIX ENVIRONMENTAL LABORA TORIES" <br /> 3017 KILGORE ROAD#100 RANCHO CORDOVA, CA 9S742 PHONE(916)63S-3962 FAX(916) 63S-9331 <br /> ANALYSIS TPH MATRIX SPIKE SUMMARY <br /> Client: Helmick & Lerner, Inc. <br /> Contact: D. Nakamoto Date Sampled: N/A <br /> COC No: 4173 Date Received: N/A <br /> Project No: City of Tracy Fire Dept. #2 Date Extracted: 10/12/93 <br /> Matrix: SOIL Date of Analysis: 10/12/93 <br /> CONC CONC PERCENT <br /> COMPOUND SPIKED MEASURED RECOVERY RPD <br /> (mg/L) LCS LCSD LCS LCSD <br /> DIESEL 100 83 80 83% 80% 4% <br /> LCS= LABORATORY CONTROL SPIKE <br /> LCSD= LABORATORY CONTROL SPIKE DUPLICATE <br /> RPD= RELATIVE PERCENT DIFFERENCE <br /> C= CONCENTRATION <br />