Landfill Daily Cover Soil Volume
Computes daily cover volume, its share of all airspace consumed.
Example
You enter
- Working face length (ft) 100
- Working face width (ft) 150
- Cover depth (in) 6
- Operating days per year 312
- Committed airspace cost ($/cy) 8
- Annual waste tonnage (tons) 250000
- In-place density (lb/cy) 1200
- Alternative cover annual cost ($) 5000
You get
- Cover soil per day 277.8 cy over 15000 sq ft
- Cover soil per year 86667 cy, placed and then permanently buried
- Share of all airspace consumed 17.2% of the site's airspace is dirt
- Annual airspace value of the soil 693333
- Net saving with an alternative cover $688333 a year
- Recovered (ton) 52000
- Extra site life (yr) 0.208
Details, formula, and sources
Computes daily cover volume, its share of all airspace consumed, and what an approved alternative daily cover would save. The worked face buries 86,667 cy of soil a year, 17% of the site's airspace, worth $693,333. The cover is doing a job and an alternative must be approved as meeting it.
cover volume = working face area x cover depth; its share = cover volume / (waste airspace + cover volume); the airspace value = cover volume x the committed cost per cubic yard.
Geometry against the site's own airspace value. Six inches of daily cover is the common baseline requirement; the permit and the regulator govern.
Public arithmetic; the requirement itself is in the site's permit.
Estimate. AHJ and licensed professional govern.
Field names used by the API: face_length_ft, face_width_ft, cover_depth_in, operating_days, airspace_value_per_cy, annual_tons, in_place_density_lb_per_cy, alternative_cover_annual_cost, cover_cy_per_day, cover_cy_per_year, cover_share_pct, cover_airspace_value, net_saving, recovered_tons, extra_site_life_years
- Airspace value the committed cost per cubic yard, before the cost of buying, hauling, and placing the soilsite financial assurance
- Alternative cover its own annual cost is entered and netted; approval is not assumedpermit / regulator