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RDSI Matrix <br /> 0 <br /> RDSI SECTION REG. CITATION RESPONSE REFERENCE <br /> III.A.10. Design Details 23 CCR 2542 (Liner Liner S sy tem: Liner system is a composite liner consisting of a 2 foot Appendix B, <br /> System) clay liner (max. permeability 1 x 10-7 cm/sec) overlaid by a CEP Dwg. P6 <br /> geomembrane. For final design, a geosynthetic clay liner(GCL) may Appendix I, FDSR <br /> be substituted for the 2 foot clay liner. See Drawing P6 for typical Sec. 1.3.3, Pages <br /> liner details. 1-8 to 1-9 <br /> 14 CCR 17773, Final Cover - Existing Landfill: Final covering existing landfill areas Appendix B, <br /> 23 CCR 2581 (Final would consist of a 2-foot foundation layer and a 1-foot minimum soil CEP Dwg. P6 <br /> Cover) barrier (max. permeability 1 x 10-6 cm/sec) with a 1-foot minimum Appendix I, FDSR <br /> topsoil layer. Sec. 1.5.3 Page 1- <br /> 17 <br /> Final Cover - Expansion Landfill: Final cover for expansion landfill <br /> areas will consist of a composite cover system an 18 inch foundation <br /> layer(max. permeability 1 x 10-6 cm/sec), a geomembrane, and an <br /> 18 inch soil cover layer. For final design, a geosynthetic clay liner <br /> (GCL) may be substituted for the low permeability foundation layer or <br /> the soil barrier layer. See Drawing P6 for typical cover details. <br /> 14 CCR 17776 (Drain Drain System: Drainage layer would be either drainage sand or Appendix B, <br /> System) geocomposite type drain net (drain net with geotextile filter). If a CEP Dwg. P6 <br /> drain net is used, a minimum 1 foot thick soil layer would be placed Appendix I, FDSR <br /> over drain net for protection of the liner system. See Drawing P6 for Sec. 1.3.5, Page 1- <br /> typical details. 10 <br /> 14 CCR 17781(c)(1 Leachate Collection System: The leachate collection consists of a Appendix B, CEP <br /> (A) (Leachate series of gravel filled trenches with a 6-inch minimum diameter Dwg. P6 <br /> Collect) collection pipe. The trenches grade down to a collection sump area. Appendix I, FDSR <br /> The leachate is pumped out of the collection sump by a submerged Sec. 1.3.6 and <br /> pump to perimeter forcemain. See details 7, 8, and 9 Drawing P6 1.3.7 <br /> and FDSR section 1.3.6 and 1.3.7. Pages 1-10 to 1-11 <br /> R.W. Beck 2-9 <br /> Revised October 2, 1997 <br /> City of Stockton <br />