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McCAWBELL ANALYTICAL INC. 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> -7Tele,510-798-1620 Fam 510-798-1622 <br /> QC REPORT FOR AA METALS <br /> 1 <br />' Date: 07/22/94 Matrix: Soil <br />' Concentration Recovery <br /> Analyte (mg/kg,mq/L) Amount RPD <br /> Sample MS MSD Spiked MS MSD <br />' Total Lead 0.0 1.0 0.9 I 96 93 3.2 <br /> Total Cadmium N/A N/A N/A N/A N/A N/A N/A <br />' Total Chromium N/A N/A N/A N/A N/A N/A N/A <br /> Total Nickel N/A N/A N/A N/A N/A N/A N/A <br /> Total Zinc N/A N/A N/A N/A N/A N/A N/A <br /> 1 <br /> STLC LEAD N/A N/A N/A N/A N/A N/A N/A <br /> Arsenic N/A N/A N/A N/A N/A N/A N/A <br /> I <br />' % Ret = (HS - Sams{e) / amount spiked x 100 <br /> RPD = (MS - RSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />