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t Draft: March 31, /999 Page 18 <br />' All laboratory data reduction will be performed in accordance with the appropriate <br />' methodology and presented as analytical results. The laboratory data will be reviewed to verify that <br />the appropriate units aze assigned to all concentrations. Additionally, further data reduction may <br />include graphing using spreadsheet or database software. <br />6.3.2 Data Validation <br />' Data will be evaluated for precision, accuracy, and completeness. Validation of field data <br />will be performed by an internal documented annual procedures audit. <br />' 6.4 Data Management <br />All analytical data reports will be tabulated within l month of receipt from the laboratory. <br />' Analytical laboratory data will be available for inspection and maintained in a central job file. All <br />records will be maintained for the life of the mine. Types of records to be maintained for this project <br />include the following: <br />- Field log books <br />' Chain-of-custody records <br />' - Any discrepancy/deficiency reports <br />- Laboratory analytical reports <br />- All supporting QC information <br />6.5 Internal Quality Control Checks <br />' 6.5.1 Qaality Control Checks-Field Activities <br />The quality control samples used to measure accuracy and precision affected by field <br />' activities are described in Appendix C and are summarized below: <br />Field Blanks <br />t Field blanks are samples of de-ionized or distilled water which are submitted to the <br />laboratory for analysis. Field blanks will be collected as a quality check on sample preparation <br />' technique, external contamination, and the analytical method. One blank per sampling event will <br />be analyzed using the technique described in Appendix C. Field blanks will be labeled and handled <br />' as regular samples. <br />1 <br />1 <br /> <br />Agapito Associates, Inc. <br />