Laserfiche WebLink
a <br /> s <br /> Emeco <br /> A C"> g C—P.Mv <br /> Sample Description <br /> See the attached Sample Description Information. <br /> The sample was received under chain-of-custody. <br /> iI Analysis Request - <br /> The following analytical tests were requested. <br /> LabID_ Al sis Descri tion <br /> 057862- na <br /> 0001. Se al Petroleum Hydrocarbons (Gasoline) and BTEX <br /> etal s <br /> IYI Qualit�_Contral <br /> A. Pro _qct SQecific 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 <br /> attached Method Blank Report. <br /> C. Laboratory Control Samoles - The LCS Frogr_am <br /> Du licate Control Samples. A DCS is a well-characterized matrix <br /> (blank water, sand ar celite) which is spiked with certain target <br /> parameters and analyzed at approximately 101/1. 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 /> Accuracy is measured by Percent Recovery as in: <br /> recovery = {measured zoncentration x 100 <br /> (actual concentration) <br /> Precision is measured using duplicate tests by Relative Percent Difference <br /> (RPD) as in: <br /> RPD = % recoverr test I - % recn_very test x 100 <br /> (% recovery test I t % recovery test 2)/2 <br /> i <br /> t <br /> r <br />