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Enseco <br />I CORNING C-- <br />I SamRle Description <br />See the attached Sample Description Information. <br />The sample was received under chain -of -custody. <br />Il Analysis Reguest <br />The following analytical tests were requested. <br />Lab ID Analysis Descrigtion <br />052242-0001 General Minerals <br />Chemical Oxygen Demand <br />Title 22 pH <br />Nitrate <br />Title 22 Specific Conductance <br />III Quality Control <br />A. Project Specific QC. No project specific QC (i.e., spikes and/or <br />duplicates) was requested. <br />B. Method Blank Results. A method blank is a laboratory -generated <br />sample which assesses the degree to which laboratory operations <br />and procedures cause false -positive analytical results for your <br />sample. <br />No target parameters were detected in the method blanks associated <br />with your sample at the reporting limit levels noted on the Method <br />Blank Report. <br />C. Laboratory Control SamRles - The LCS ProqLam <br />Duplicate Control Samgles. A DCS is a well -characterized matrix <br />(blank water, sand or celite) which is spiked with certain target <br />parameters and analyzed at approximately 10% of the sample load in <br />order to establish method -specific control limits. The DCS <br />results associated with your sample are on the attached Duplicate <br />Control Sample Report. <br />Single Control Sample. An SCS consists of a control matrix that <br />is spiked with surrogate compounds appropriate to the method being <br />used. In cases where no surrogate is available, (e.g. metals or <br />conventional analyses) a single control sample identical to the <br />DCS serves as the control sample. An SCS is prepared for each <br />s*ample lot. Accuracy is calculated identically to the DCS. The <br />SCS results associated with your sample are on the attached Single <br />Control Sample Report. <br />E <br />E <br />