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July 24, 2012 Lab ID : STKI236775 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Inorganic <br /> Constituent %tuthod Dote/11) Type Unit% Cone. QC Data DQU Note <br /> Wet Chem <br /> Nitrate 300.0 07/18/12:208032MCA LCS mg/l. 20.00 102% 90-110 <br /> MS mg/L 400.0 103% 88-124 <br /> (STK1236620-001) MSD mg/L 400.0 103% 88-124 <br /> MSRPD mg/L 100.0 0.1% 529.1 <br /> L.CS mg/L 20.00 105% 90-110 <br /> MS mg/L 400.0 105% 88-124 <br /> (S77C1236775-003) MSD m9/L 400.0 106% 88-124 <br /> MSRPD mg/L 100.0 13% 59.1 <br /> 300.0 0711&12:2106l6CJJ CCB ppm -0.016 OA <br /> CCV ppm 20.00 105% 90-110 <br /> CCB ppm -0.022 0.4 <br /> CCV ppm 20.00 105% 90-110 <br /> CCB Ppm -0.026 0.4 <br /> CCV ppm 20.00 105% 90-110 <br /> CCB Ppm -0.036 0.4 <br /> CCV m 20.00 103% 90-110 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> CCB :Continuing Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <br /> 1 Cs : laboratory Control Standanl/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. <br /> vl ti :Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how chat sample <br /> matrix affects analyse recovery. <br /> MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> DQO Dasa unlit'ohjective-This is the criteria a adnst which the tialitycontroldataiscompa,ed. <br /> Page 1 I of I I <br />