COMPLIANCE INFO_JTD 7-14-25 - Laserfiche WebLink

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North County RC&SL Page 24 of 64 Public Works/Solid Waste Joint Technical Document County of San Joaquin – Revised July 14, 2025 At completion, the height of the landfill will not exceed 320 ft elevation without written approval by jurisdictional agencies. 5.3 CONSTRUCTION SEQUENCING PLANS Because sizing of the areas is dependent on many operational issues, such as anticipated waste stream and capital cost expenditures, the actual size and configuration of each Lined Area will be adjusted by the County to meet the needs of the County. 5.3.1 Excavation and Stockpiling Plans An excavation plan and a stockpile plan will be incorporated into the design of each area. Excavation plans will include the earthwork slopes and base grades, liner limits, LCRS systems, perimeter berms, haul ramps, drainage ditches and storm water basins, and locations of ancillary facilities. The stockpile plans will show the location and grading contours for temporary placement of the surplus soils. The County may seek to lease land adjacent to the landfill property for the placement of an interim stockpile for soil needed for closure. Near the end of landfill development, particularly for Area 11, stockpiling may occur on the top deck of previously constructed areas that have been filled to interim heights. Soil may also be stockpiled north of the refuse fill in non-wetland mitigation areas. 5.3.2 Base Preparation and Liner Placement Plans The base of each lined area will provide drainage to a sump, from which leachate will be removed (Appendix B, Drawing 2). The sump for each area will be located on the permanent exterior edge of the landfill. This will allow access to the leachate sump via a side slope leachate riser. Each lined area will be separately designed and submitted for approval based on the requirements of the regulations and permits (including WDRs) in effect at the time of submittal.