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' 7 <br /> March 11, 2010 Lab ID : STK1031449 <br /> San Joaquin County Solid Waste Customer : 3-2956 <br /> Quality Control - Inorganic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Chloride 300.0 02/23/2010:201884 LCS mg/L 25.00 95.8% 90-110 <br /> MS mg/L 500.0 101% 86-128 <br /> (STK1031449-001) MSD mg/L 500.0 101% 86-128 <br /> MSRPD, m 100.0 0.1% <23.0 <br /> 300.0 02/23/2010:202159 ICV ppm 50.00 97.5% 90-110 <br /> ICB ppm -0.1 1 <br /> CCB ppm -0.1 1 <br /> CCV EEM 25.00 97.7% 90-110 <br /> Sulfate 300.0 02/23/2010:201884 LCS mg/L 50.00 96.6% 90-110 <br /> MS mg/L 1000 102% 78-137 <br /> (STK1031449-001) MSD mg/L 1000 102% 78-137 <br /> MSRPD mgfL 100.0 0.2% <12.3 <br /> 300.0 02/23/2010:202159 ICV ppm 100.0 98.4% 90-110 <br /> ICB ppm -0.62 2 <br /> CCB ppm -0.34 2 <br /> CCV PPM 50.00 98.4% 90-110 <br /> Nitrate+Nitrite as N 450ONO3F MS mg/L 4.000 84.1 % 5-285 <br /> (CH 1070886-001) MSD mg/L 4.000 90.1% 5-285 <br /> MSRPD, I mg/L 1 4.000 1 5.9% <30.4 <br /> 450ONO3F 02/18/2010:201902 CCB mg/L 0.015 0.1 <br /> CCV mg/L 4.000 97.3% 90-110 <br /> CCB mg/L 0.01 0.1 <br /> CCV m 4.000 99.9% 90-110 <br /> Definition <br /> ICV :Initial Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> ICB Initial Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <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 /> 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 /> 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 /> Dup :Duplicate Sample-A random sample with each batch is prepared and analyzed in duplicate.The relative percent difference is an <br /> indication of precision for the preparation and analysis. <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 /> i <br /> s <br /> 3 <br /> Page 8of8 <br />