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Recommendations of the On -Site Wastewater Treatment Systems <br />Nitrogen Reduction Technology Expert Review Panel February 2014 <br />3.9.7 <br />Review Timeline and Recommendations <br />65 <br />3.10 Elevated <br />Sand Mounds................................................................................................................ <br />66 <br />3.10.1 <br />Detailed Definition of Practice <br />66 <br />3.10.2 <br />Nitrogen Load Reduction and Recommended Credit <br />66 <br />3.10.3 <br />Ancillary Issues and Interactions with Other Practices <br />72 <br />3.10.4 <br />Design and Installation Criteria <br />72 <br />3.10.5 <br />Temporal Performance <br />73 <br />3.10.6 <br />Recommended Management Requirements <br />73 <br />3.10.7 <br />Review Timeline and Recommendations <br />74 <br />3.11 Permeable Reactive Barriers....................................................................................................... <br />74 <br />3.11.1 <br />Detailed Definition of Practice <br />74 <br />3.11.2 <br />Nitrogen Load Reduction and Recommended Credit <br />75 <br />3.11.3 <br />Ancillary Issues and Interactions with Other Practices <br />77 <br />3.11.4 <br />Design and Installation Criteria <br />77 <br />3.11.5 <br />Temporal Performance <br />78 <br />3.11.6 Recommended Management Requirements 79 <br />3.11.7 Review Timeline and Recommendations 79 <br />4 Examples........................................................................................................................................80 <br />5 Future Research and Management Recommendations................................................................. 81 <br />5.1 Alkalinity Control....................................................................................................................... 81 <br />5.2 BMP Sampling............................................................................................................................ 81 <br />5.3 Data Sharing and Reciprocity..................................................................................................... 81 <br />5.4 Variable Baseline and BMP Performance by Soil Type............................................................. 82 <br />6 References........................................................................................................................................83 <br />Tables <br />Table ES -1-1. Summary of BMP Recommendations for Ex Situ Unit Processes ....................................... 11 <br />Table ES- 1-2. Summary of BMP Recommendations for In Situ Soil Treatment Unit Processes ............... 12 <br />Table ES -1-3. Summary of Net TN Load Reductions for Combined In Situ and Ex Situ Systems............ 13 <br />Table 1-1. List of OWTS Panelists.............................................................................................................14 <br />Table 2-1. TN Concentration for Various Design Flow Assumptions........................................................ 19 <br />Table 3-1. Summary of BMP Recommendations for Ex Situ Unit Processes ............................................. 29 <br />Table 3-2. Summary of BMP Recommendations for In Situ Soil Treatment Unit Processes ..................... 31 <br />Table 3-3. Summary of Net TN Load Reductions for Combined In Situ and Ex Situ Systems .................. 31 <br />O TETM.McKwc. <br />4 <br />