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C� <br />ROY F. WESTON INC. <br />J <br />INORGANICS DUPLICATE SPIKE REPORT 08/20/92 <br />CLIENT: CITY OF STOCKTON ENVCON <br />WORK ORDER: 0000-00-00-0000 <br />SAMPLE SITE ID <br />------- -------------------- <br />LCS2 9250705-LC2 <br />LCS2 9250694-LC2 <br />WESTON BATCH #: 9208S497 <br />SPIKE#1 <br />SPIKE#2 <br />ANALYTE <br />%RECOV <br />%RECOV <br />%DIFF <br />------------- <br />Cadmium, LCS <br />------ <br />87.0 <br />85.8 <br />1.4 <br />Chromium, LCS <br />95.5 <br />96.7 <br />1.2 <br />Copper, LCS <br />97.2 <br />95.8 <br />1.5 <br />Nickel, LCS <br />97.1 <br />97.4 <br />0.31 <br />Zinc, LCS <br />97.6 <br />97.6 <br />0.00 <br />Lead, LCS <br />102 <br />100 <br />1.5 <br />