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April 9, 2013 Lab ID : STK1332465 <br /> Musco Family Olive Environmental Customer : 3-11544 <br /> Quality Control - Organic <br /> constituent Method Date/ID Type Units Conc. QC Data DQO rote <br /> )r�,anic <br /> u ;31K 03/27/13:203119AMM Blank mg/L ND <0.3 <br /> MS mg/L 15.00 143% 75-114 435 <br /> (VI 1340559-001) MSD mg/L 15.00 138% 75-114 435 <br /> MSRPD _mgIL 15.00 1 2.8% X3.0 <br /> 5310C 03/29/13:204654AMM CCV ppm 15.00 96.0% 67-122 <br /> CCV L ppm 15.00 96.2% 1 67-122 <br /> Uclinition <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 /> MS Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how that sample <br /> matrix affects analyte 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 /> 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 /> Explanation <br /> 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. <br /> Page 11 of 11 <br />