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January 11, 2011 Lab ID : STK1051068 <br /> Musco Family Olive Environmental Customer : 3-11544 <br /> Quality Control-Organic <br /> f <br /> Constituent Method Date/]D Type Units Cone. QC Data DQO Note <br /> Organic <br /> OC 5310C 01106/2011:200229 Blank mg/L ND <0.3 <br /> BS mglL 50.00 75.6% 75-114 <br /> BSD mg/L 50.00 85.8% 75-114 <br /> BSRPD m 50.00 1 12.5% 1 X3.0 <br /> 5310C 01/06/201 1:200304 CCV ppm 50.00 1 86.0% 76-1 19 <br /> CCV ppm 50.00 92.6% 76-1 <br /> i9 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> BS :Blank Spikes-A blank is spiked with a known amount of analyte.It is prepared to verify that the preparation process is not <br /> affecting analyte recovery. <br /> BSD :Blank Spike Duplicate of BS/BSD pair-A blank duplicate is spiked with a known amount of analyte.It is prepared to verify that <br /> 1 the preparation process is not affecting analyte recovery. <br /> BSRPD ;BS/BSD Relative Percent Difference(RPD)-The BS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> ND :Non-detect-Result was below the DQO listed for the analyte. <br /> DQO :Data 2uality Objective-This is the criteria against which the quality control data is compared. <br /> , s <br /> 4 <br /> l <br /> Page 11 of II <br /> I <br /> f <br /> u <br />