Laserfiche WebLink
' The landfill cross sections, shown on Drawing 3, illustrate the gen- <br /> eral relationship between the existing ground, excavation subgrade, <br /> ' final landfill surface profiles, perimeter berm(s) , and fill advance- <br /> ment direction within the modules. The four-working-face detail shown <br /> ' on Drawing 3 highlights the refuse placement method and lift construc- <br /> tion. The active face advancement will be skewed in the direction of <br /> ' fill placement to promote drainage. <br /> ' 4.2 SITE CAPACITY AND SERVICE LIFE <br /> Estimates of waste capacity, earthwork, and soil cover requirements <br /> ' are presented in Table 1 . Based on the stated assumptions, the site <br /> has a refuse capacity of 17,300,000 cubic yards. <br /> ' The sanitarylandfill service life is calculated based on a comparison <br /> ' of projected waste generation rates (increased by 3 percent a year <br /> according to Harney Lane Sanitary Landfill records) and the refuse <br /> ' capacity of the landfill . The landfill service life is approximately <br /> 36 years. <br /> 4.3 EARTHWORK <br /> Earthwork for the project includes the excavation of on-site soils, <br /> construction of earthfill for the roadway and perimeter berm, and <br /> preparation of the soil stockpile and screening berm. <br /> ' 4.3. 1 Excavation <br /> The site will be excavated within the limit lines and to the base of <br /> excavation contours shown on Drawing 2. In general , the excavated <br /> soils will be suitable for direct use as daily and intermediate soil <br /> ' cover. Selected soils intended for use as final cover will be clayey <br /> or silty soils with a permeability of 1 x 10-6 cm/sec or less. These <br /> soils may be placed directly as needed or stockpiled in locations as <br /> shown on Drawing 1 . <br /> ' PJ9 9390209A.00D 12 <br /> ' mon Associates <br />