COMPLIANCE INFO_JTD 9/3/2025 - Laserfiche WebLink

Home Browse Search

Foothill Sanitary Landfill Page 7 of 53 San Joaquin County DPW - Solid Waste Joint Technical Document Revised 6/09/2020 4. WASTE MANAGEMENT UNIT CHARACTERISTICS AND SITING 4.1. Airport Safety Title 27 CCR and Subtitle D of the federal regulations have requirements for locating new landfills within five miles of an airport, one of which is that the Federal Aviation Administration and other airport officials be notified of new landfill modules. However, because the landfill is located further than 5 miles from the nearest airport, these requirements do not apply. 4.2. Volumetric Capacity The total airspace of the landfill (gross volume) is approximately 138 million CY, of which a total of approximately 130 million CY may receive refuse fill and associated cover soils, not including final cover (Table 3). This capacity estimate is based on: The conceptual landfill base design with a minimum landfill elevation 180 ft. MSL (Figure 5) Maximum height of 432 ft MSL and the proposed final contours (Figure 6) Landfill Disposal area footprint of 674 acres Side slopes of approximately 3 to 1 (Figure 6) 4.3. Site Life Estimate The Foothill Sanitary Landfill is anticipated to reach capacity in approximately the year 2087. This estimate is based on the June 2024 aerial survey and the calculated volume of available airspace (Table 5). 4.4. Soil Availability Total future soil needs, including daily and intermediate cover (assume to represent 20% by volume of waste disposed, operations soil over future LCRS, and final cover, are estimated to be approximately 29.1 million CY (Tables 3 and 4). This estimate assumes continued use as soil for daily cover. The on-site sources of cover from excavation of the future modules are estimated to be approximately 48 million CY. These estimates indicate an abundance of soil cover, such that it