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<br />51. JTD, Appendix I, p.5, section 2.3.3: The "Construction Quality Assurance" section does not address the
<br />requirements in T27CCR 21790(b)(8)(C), T27CCR 20323 and T27CCR 20324.
<br />Text has been added indicating that third -party certification will be provided. An
<br />estimated cost for Construction Quality Assurance is shown on Appendix I, Table 2-3.
<br />JTD, Appendix I, p.7, section 2.3.7: This section does not describe how often the leachate volume will be
<br />measured or describe the reporting requirements. Pursuant to T27CCR 20340(h).
<br />A brief description of these features, as they may exist at closure, has been added. An
<br />estimated cost for Construction Quality Assurance is shown on Appendix I, Table 2-3.
<br />Also see Item 47.
<br />52. JTD, Appendix I, p.8, section 3.2: This section does not address the number of years of postclosure
<br />monitoring and maintenance required by T27CCR 21180(a).
<br />Text explicitly identifying a 30 -year postclosure period has been added, supplementing
<br />the note at the bottom of Appendix I, Table 3-1.
<br />53. JTD, Appendix I, p.8, section 3.2: This section does not address postclosure monitoring and maintenance of
<br />the site security systems as required by T27CCR 21180(a)(1).
<br />The referenced section addresses closure activities that will be addressed in the Final
<br />Closure Plan in the year 2055 (approximately). In the Preliminary Closure Plan, we
<br />include an approximate cost for these activities (Appendix I, Table 3-1).
<br />54. JTD, Appendix I, Appendix A, Site Development Plan: Appendix A does not show the fifteen foot wide
<br />benches required for every fifty feet of vertical height. Pursuant to T27CCR 21790(b)(8)(B), T27CCR
<br />21140(b) and T27CCR 21090(a).
<br />See Item 50.
<br />55. JTD, Appendix I, Appendix C, Landfill Gas Collection and Monitoring System: Section four, "Landfill
<br />Gas Migration and Monitoring Probes," requires more detail. This section does not describe the depth of the
<br />probes, the monitoring frequency, type of gas sampled, well construction, structure monitoring, corrective
<br />action, or EA reporting. Pursuant to T27CCR 20925-20937.
<br />The Methane Monitoring Plan, containing this information, has been added as
<br />Appendix P.
<br />56. JTD, Appendix M: The volumetric capacity calculations do not include the amount of capacity consumed by
<br />liner construction, intermediate cover and final cover, as required by T27CCR 21600(b)(3)(B).
<br />For the purposes of calculating site life, the volumetric capacity of the landfill (including
<br />refuse, daily cover, and intermediate cover) is the volume between two surfaces: The
<br />top of the operations layer over the LCRS, and the underside of the closure cap.
<br />This volume excludes the LCRS and operations layer at the base of the landfill and the
<br />closure cap at the final landfill surface. Calculation of capacity consumed by the closure
<br />cap is reflected in the final page of Appendix M and in Table 3-1. We think it important
<br />to note that the base of the landfill, shown in the Preliminary Closure Plan, is conceptual
<br />in nature, and subject to revision based on further engineering studies. The volume
<br />associated with the uncertainty in the landfill base is much greater than the volume
<br />associated with the LCRS and operations layer.
<br />Notes Regarding Comments 6 San Joaquin County DPW/Solid Waste
<br />Foothill JTD October 14, 2005
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