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CAL TECH Environmental Laboratories <br /> (0' 681-1 Roticu ui4 :\�rnuc. ('aromnunt_( 1 `)07'i-1 l ae <br /> 121GI)IIOnC (�O-!) -'/2_27110 1 a\: 00') _.'�_7 <br /> QA/QC Report <br /> Method: 60108 <br /> Matrix: Soil <br /> Date Analyzed: 11/19/07 <br /> Units: m k/Kg <br /> Perimeters Method LCS-2 LCSD-2 Spike LCS % LCSD % Limits RPD <br /> Blank Added Rec. Rec. <br /> Chromium 0 1 1.02 0.997 1 102 100 60-140 2 <br /> Copper 0 1 1.05 1.01 1 105 101 60-140 4 <br /> Lead 0 0.97 0:966 1 97 97 60-140 0 <br /> Nickle 0 0.983 0.966 1 98 97 60-140 1 <br /> Zinc 0 1.04 1.04 1 104 104 60-140 0 <br /> LCS: Laboratory Control Standard <br /> LCSD: Laboratory Control Standard Duplicate <br /> RPD: Relative Percent Difference of LCS and LCSD <br /> TOTALLY l9C[DICA"TI P) TO ('liST{)NIHZ SATISFACTION <br />