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Contenls <br />(continued) <br /> <br />12,4 Proposal for Revision of the Existing Monitoring System ........ 12-8 <br /> <br />12.4.1 <br />12.4.2 <br /> <br />12,4.3 <br />12.4.4 <br />12.4.5 <br />12.4.6 <br />12,4.7 <br /> <br />Potential for Use of Existing Monitoring Wells .......... 12-8 <br />Numbers, Location and Spacing of Proposed Monitoring <br />Wells ....................................... 12-8 <br />Proposed Monitoring Well Screened Depths ........... 12-9 <br />Surface Water Monitoring System .................. 12-10 <br />New/Upgraded Monitoring System Proposal .......... 12-11 <br />Well Abandonment Request ...................... 12-13 <br />Action Plan .................................. 12-13 <br /> <br />12.5 Sampling and Analysis Plan ........................... 12-14 <br /> <br />12.5.1 Detection Monitoring Requirements ................. 12-14 <br /> <br />12.5.1.1 <br />12.5.1.2 <br />12.5.1.3 <br />12.5.1.4 <br /> <br />Analytical Parameters .................. 12-14 <br />Proposed Sampling Schedule and Frequency . 12-15 <br />Rate and Flow Direction of Groundwater ..... 12-15 <br />Vertical and Lateral Control .............. 12-16 <br /> <br />12.5.2 Sampling and Analysis Procedures ................. 12-16 <br /> <br />12.5.2.1 <br />12.5.2.2 <br />12.5.2.3 <br />12.5.2.4 <br />-12.5.2.5 <br />12.5.2.6 <br />12.5.2.7 <br />12.5.2.8 <br />12.5.2.9 <br /> <br />Sampling Equipment and Containers ........ 12-16 <br />Equipment Cleaning Procedures ........... 12-16 <br />Water Level Measurement Procedures ...... 12-17 <br />Purging Procedures .................... 12-17 <br />Sample Collection Procedures ............ 12-18 <br />Field QA/QC Procedures ................ 12-18 <br />Preservation and Transport of Samples ...... 12-19 <br />Chain-of-Custody Documentation .......... 12-20 <br />Laboratory QA/QC Procedures ............ 12-20 <br /> <br />12.5.3 Data Evaluation ............................... 12-21 <br /> <br />12.5.3.1 <br />12.5.3.2 <br />12.5.3.3 <br /> <br />Groundwater Standards ................. 12-21 <br />Surface Water Standards ......... ; ...... 12-21 <br />Statistical Analysis ..................... 12-21 <br /> <br />12.6 Results/Reporting Requirements ........................ 12-23 <br /> <br />12.7 Detection of Elevated Constituent Levels .................. 12-23 <br /> <br />CDM Camp Dresser & McKee <br /> <br />iv <br /> <br /> <br />