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07-02-'13 14;55 FROM -SKS ENTERPRISES INC <br />June 20, 2013 <br />SKS Enterprises <br />209-7593154 <br />Lab M <br />Customer <br />Quality Control - Inorganic <br />E <br />T-889 P0071015 F-676 <br />: STK1335057 <br />: 3-13071 <br />Constituent <br />Method <br />Date/TD <br />Type <br />Units <br />Conc. <br />QC Data <br />DQO <br />Note <br />Metals <br />Copper <br />3050 <br />05/31/13:206059amb <br />LCS <br />mg/kg <br />40.00 <br />98.1 % <br />85-115 <br />MS <br />mg/kg <br />40.00 <br />94.6% <br />75-125 <br />(CC 1381509-001) <br />MSD <br />mg/kg <br />40.00 <br />95.3% <br />75-125 <br />MSRPD <br />mg/kg <br />39.94 <br />0.6% <br />520 <br />PDS <br />mgft <br />40.00 <br />105% <br />75-125 <br />Lead <br />3050 <br />05131/13:206059amb <br />Blank <br />mg/kg <br />ND <br /><0.5 <br />LCs <br />mg/kg <br />40.00 <br />94.4% <br />85-115 <br />MS <br />mg/kg <br />40,00 <br />87.6% <br />75-125 <br />(CC 1381509-001) <br />MSD <br />mg/kg <br />40.00 <br />86.2% <br />75-125 <br />MSRPD <br />mg/kg <br />39.94 <br />1.4% <br />:520 <br />PDS <br />m <br />40.00 <br />1 98.5% <br />75-125 <br />Nickel <br />3050 <br />05/31/13:206059amb <br />Blank <br />mg/kg <br />ND <br /><0.5 <br />LCS <br />mg/kg <br />40,00 <br />98.1170 <br />85-115 <br />MS <br />mg/kg <br />40.00 <br />85.1 % <br />75-125 <br />(CC 1381509-001) <br />MSD <br />mg/kg <br />40.00 <br />85.4% <br />75-125 <br />MSRPD <br />mg/kg <br />39.94 <br />0,24b <br /><-20 <br />PDS <br />m <br />40.00 <br />94.0% <br />1 75-125 <br />Selenium <br />3050 <br />05/31/13:206059amb <br />Blank <br />mg/kg <br />ND <br /><0.5 <br />LCS <br />mgtkg <br />39.96 <br />88.2% <br />85-115 <br />MS <br />mg/kg <br />39.98 <br />89.0% <br />75-125 <br />(CC 1381509-001) <br />MSD <br />mg/kg <br />39,98 <br />88.4% <br />75-125 <br />MSRPD <br />mg/kg <br />39.94 <br />0.6% <br />520 <br />PDS <br />m <br />39.98 <br />1 101% <br />75-125 <br />Zinc <br />3050 <br />05/31/13:206059amb <br />Blank <br />mg/kg <br />ND <br /><1 <br />LCS <br />mg/kg <br />40.00 <br />93.1 % <br />85-115 <br />MS <br />mgtkg <br />40.00 <br />$6.7% <br />75-125 <br />(CC 1381509-001) <br />MSD <br />mg/kg <br />40.00 <br />79.3% <br />75-125 <br />MSRPD <br />mg/kg <br />39.94 <br />5.87o <br /><20 <br />PDS <br />m <br />40.00 <br />96.7% <br />75-125 <br />Mercury <br />7471 <br />06/05/13:206266ac <br />Blank <br />mg/kg <br />ND <br /><0.03 <br />LCS <br />mg/kg <br />0.2500 <br />99,4% <br />85-115 <br />MS <br />mg/kg <br />0.2500 <br />75.8% <br />75-125 <br />(SP 1304771-001) <br />MSD <br />mg/kg <br />0,2500 <br />101% <br />75-125 <br />MSRPD <br />m <br />0.2500 <br />19.3% <br />X20 <br />Wet Chem <br />%a Solids <br />254DG <br />05/31/13;206107jmg <br />Blank <br />410 <br />ND <br /><0,1 <br />(STKI335057-001 <br />Du <br />% <br />0.9% <br />23.9 <br />Definition <br />PDS failed, matrix - Post Digestion Spike (PDS) not within Acceptance Range (AR) because of matrix interferences affecting this <br />PDS <br />analyte. <br />CCV : Continuing Calibration Verification - Analyzed to verify the instrument calibration is within criteria. <br />CCB : Continuing Calibration Blank, Analyzed to verify the instrument baselino is within criteria. <br />Blank : Method Blank - Prepared to verify that the preparation process is not contributing contamination to the samples. <br />LCS : Laboratory Control Standard/Sample - Prepared to verify that the preparation process is not affecting analyte recovery. <br />Matrix Spikes - A random kample N spiked with a known amount of analyte. The recoveries are an indication of how that sample <br />MS matrix affects analyte recovery. <br />: Matrix Spiko Duplicate of MS/MSD pair - A random sample duplicate is spiked with a known amount of analyted. The recoveries <br />MSD <br />are an indication of how that sample matrix affects analyte recovery. <br />: Duplicate Sample - A random sample with each batch is prepared and analyzed in duplicate. The relative percent difference is an <br />Dup <br />indication of precision for the preparation and analysis. <br />: MS/MSD Relative Percent Difference (RPD) , The MS relative percent difference is an indication of precision for the preparation <br />MSRPD <br />and analysis. <br />ND : Non -detect - Result was below the DQO listed for the analyte. <br />DQO ; Data Quality Objective - This is the criteria against which the quality control data is compared. <br />Page 6of6 <br />Received Time Jul, 2. 2013 2:59PM No -0709 <br />