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Page i of i <br />SOP NUMBER 28.1 Analytical Data Validation <br />1.0 PURPOSE AND SCOPE ............................................................................................28.0-1 <br />2.0 RESPONSIBILITIES AND QUALIFICATIONS ......................................................28.0-1 <br />3.0 LIST OF RELATED SOPs .........................................................................................28.0-1 <br />4.0 DATA REVIEW PROCEDURES ..............................................................................28.0-1 <br />4.1 Review of Sample-Specific Criteria ............................................................... 28.0-2 <br /> 4.1.1 Case Narrative Comments ............................................................... ..28.0-2 <br /> 4.1.2 Chain-of-Custody and Sample Receipt ........................................... ..28.0-3 <br /> 4.1.3 Holding Times ................................................................................. ..28.0-3 <br /> 4.1.4 Method Blank (Preparation Blank) ................................................. ..28.0-3 <br /> 4.1.5 Matrix-Dependent Quality Control ................................................. ..28.0-4 <br /> 4.1.6 Method-Specific Quality Control Measures ................................... .. 28.0-5 <br /> 4.1.7 Field Quality Control Samples ........................................................ ..28.0-9 <br /> 4.1.8 Reporting Limits .............................................................................. 28.0-11 <br /> 4.1.9 Other Items Identified in the Case Narrative .................................. 28.0-12 <br /> 4.1.10 Completeness of the Data Package ................................................. 28.0-12 <br />4.2 Review of Laboratory Performance Parameters ........................................... 28.0-12 <br /> 4.2.1 Initial Calibration ............................................................................ 28.0-13 <br /> 4.2.2 Continuing Calibration Verification ................................................ 28.0-13 <br /> 4.2.3 Laboratory Control Sample Analysis .............................................. 28.0-14 <br /> 4.2.4 Compound Identification ................................................................. 28.0-15 <br /> 4.2.5 Target Analyte Quantification ......................................................... 28.0-15 <br /> 4.2.6 Verification ...................................................................................... 28.0-15 <br /> 4.2.7 Method Specific Quality Control Checks ....................................... 28.0-16 <br />5.0 DOC UMENTATION ............................................................................................... 28.0-16 <br />5.1 Data Review Worksheets .............................................................................. 28.0-16 <br />5.2 Data Review Narrative Reports .................................................................... 28.0-17 <br />List of Tables <br />Table 1 Data Validation Qualifier Definitions ........................................................... 28.0-20 <br />Table 2 Data Validation Qualifier Codes and Bias Direction Codes ......................... 28.0-21 <br />List of Figures <br />Figure 1 Data Review Worksheet for Sample-Specific Parameters ............................ 28.0-22 <br />Figure 2 Data Review Worksheet for Laboratory Performance Parameters ............... 28.0-24 <br />Powertech <br />Rev 28-1 JAB <br />Attachment A <br />R Squared Inc <br />28.1-i <br />4/23/2007