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• <br /> September 11, 2013 lab ID : STK1338534 <br /> California Water Service Customer : 3-9045 <br /> Quality Control-Organic <br /> Constituent Method Date/ID Type UnitsCanc. QC Data DQO Note <br /> Organic <br /> o-terphenyl 8015M (STK1339534-001) MSD mg/L 2.632 73.0% 0-208 <br /> MSRPD m 2.632 0.015 52 <br /> 8015M 09/06/13:213159VRG CCV mg/L 50.00 86.19 70-130 <br /> CCV m 50.00 90.1% 70-130 <br /> PH-Diesel 8015M i 09/06/13:210231VRG Blank mg/L ND <0.5 <br /> LCS mg/L 26.32 86.5% 64-106 <br /> MS mg/L 26.32 81.3% 21-145 <br /> (STK1338534-001) MSD mg/L 26.32 80.8% 21-145 <br /> MSRPD I m 2.632 0.6% 1 5572 <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 /> LCS :Iabomtory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. <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 analyzed.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 Obiective-This is the criteria a ainst which the quality control data is compared. <br /> Explanation <br /> 360 :CCV above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. <br /> 435 :Sam le matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recov <br /> Page 16 of 16 <br />