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1-9 <br /> alternative final cover as defined in 27 CCR. A traditional barrier layer is not proposed for the <br /> alternative final cover design. The 2013 Joint Technical Document OTD) includes the Final <br /> Cover CQA Plan (GLA, 2005) and an Alternative Final Cover Design Report (GLA, 2005) as <br /> appendices. The cost of constructing the final cover includes site preparation, site grading, <br /> final cover placement and settlement monument installation. <br /> 1.8.2 Final Cover Construction Quality Assurance Monitoring and Testing <br /> The Gcosts for CQA include the final cover placement tests, inspections., and reporting. As <br /> mentioned above, the Final Cover COA Plan (GLA, 2OO5) is included as an appendix to the <br /> 2013 JTD. <br /> 1.8.3 Drainage Control System <br /> The Gcosts for the drainage control system include the construction, removal and <br /> replacement of inlet structures and down drains over an approximate 187.&acre area. <br /> Construction of the permanent drainage control system for the current fill area is complete. <br /> As operations expand, the drainage control facilities for the upcoming fill area are installed <br /> concurrent with liner construction as part of neral ongoing landfill development. No costs <br /> for drainage construction, other than for final closure items,. are included in the closure cost <br /> estimate. <br /> 1.8.4 Landscaping and Erosion Control <br /> This category covers the cost of landscaping construction, which includes soil preparation <br /> and planting of vegetative materials. <br /> 1.8.5 Gas Control System <br /> This category includes the cost of extendin sioa of-the wells through the final cover and <br /> lateral piping system modification during placement of the final cover system. <br /> 1.8.6 Site Security <br /> This category includes costs for required signage at closure of Stage VI or any lesser portion <br /> of the site. The site is currently enclosed with a perimeter fence and gates or has <br /> topographic constraints to prevent unauthorized access to the site property. <br /> 1.8.7 Structure Removal/Decommissioning of Environmental Control Systems QeffieAiotR <br /> This category generally includes costs for dismantling and removal of on-site structures (i.e., <br /> fee booths and landfill scales). No costs have been included for decommissioning of the <br /> environmental control systems since none is planned at this time. <br /> 1.8.8 Gas Migration Monitoring System <br /> This category assumes that all gas migration monitoring probes will be placed during active <br /> operations as required under 27 CCR, Sections 20921 through 20939. <br /> Forward Landfill SWT Engineering <br /> PCPCMP Amendment No.4-May 2013 <br /> z:\projects\allied waste\forward\five year permit rvw 2013\jtd-5 yr pr 2013\appendices\app a-pcpcmp 2013\text\pcpcmp amend <br /> 2013.doc <br />