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October 13, 2009 Lab ID : STK0939015 Bear Creek Winery Customer : 3-14067 Quality Control- Inorganic onstiment Method DatedD Type Units Conc. QC Data DQO Note et Chem itrite 300.0 09/29/2009:212620 CCB ppm 0.000 0.3 CCV ppm 15.00 109% 90-110 ulfate 300.0 0929/2009:210232 LCS mg/L 50.00 101% 90-110 MS mg/L 1000 103% 78-137 (STK0938839-001) MSD mgt 1000 103% 78-137 MSRPD mgtL 100.0 0.2% <12.3 300.0 09292009:212620 CCB ppm 0.00 2 CCV ppm 50.00 102% 90-110 CCB ppm 0.00 2 CCV Ppm 50.00 104% 90-110 Nitrogen,Total Kjeldahl 351.1 10/05/2009:210422 Blank mg/L ND <1 LCS mg/L 10.00 67.7% 41-148 LCS 1119/1. 10.00 78.9% 41-148 MS mg/L 0.4000 106% 25-149 (STK0938962-001) MSD mg/L 0.4000 19.8% 25-149 435 MSRPD mg1L 0.4000 0.34 <1 AS 55400 0929/2009:210262 MS mg/L ]00.0 100% 90-110 (SP 0909765-001) MSD mg/L 100.0 100% 90-110 MSRPD m 100.0 0.0 <_O.1 55400 0929/2009:212656 CCB M91L 0.000 0.1 CCV m 100.0 100% 99-101 Nitrogen,Total Kjeldahl EPA351.2 10/07/2009:212970 CCB mgt0.000 0.2 CCV mg/L 2.000 100% 90-110 CCB mg/L 0.032 0.2 CCV m L 2.000 100% 90-110 Definition ICB :Initial Calibration Blank-Analyzed to verify the instrument baseline is within criteria. CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. CCB :Continuing Calibration Blank-Analyzed to verify the instrument baseline is within criteria. Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. LES :Laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. MS :Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how that sample matrix affects analyte recovery. MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted.The recoveries are an indication of how that sample matrix affects analyte recovery. Dup :Duplicate Sample-A random sample with each batch is prepared and analyzed in duplicate.The relative percent difference is an indication of precision for the preparation and analysis. MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation and analysis. ND :Non-detect-Result was below the DQO listed for the analyte. DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. Explanation 435 :Sample matrix my be affecting this analyte.Data was accepted based on the LCS or CCV recovery. Page 6 of 6