Landfill Site Selection Guidelines
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Questions and Answers

What is the maximum hydraulic conductivity value that characterizes suitable subsurface layers for landfill siting?

  • 1 x 10-9 m/s
  • 1 x 10-8 m/s (correct)
  • 1 x 10-7 m/s
  • 1 x 10-6 m/s
  • Which of the following methods can be used to obtain information about geological conditions during site selection?

  • Soil borings (correct)
  • Remote sensing
  • Geophysical surveys
  • Hydraulic fracturing
  • Why is knowledge about groundwater flow direction important in landfill monitoring?

  • It is necessary for determining the size of the landfill.
  • It helps to identify the location of potential contaminant sinks. (correct)
  • It determines the material used for landfill liners.
  • It ensures construction efficiency.
  • What is the benefit of having subsurface layers of very low hydraulic conductivity in landfills?

    <p>It eliminates the need for a base liner.</p> Signup and view all the answers

    Which tool is used to develop a groundwater monitoring system around a landfill?

    <p>Groundwater monitoring wells</p> Signup and view all the answers

    What is the minimum recommended distance for landfill sites from occupied dwellings?

    <p>500 m</p> Signup and view all the answers

    Why should landfill sites be located away from waterways and water bodies?

    <p>To prevent emissions from affecting water quality</p> Signup and view all the answers

    What role does the geological condition of a landfill site play in site selection?

    <p>It is crucial for assessing risk of emissions</p> Signup and view all the answers

    Which factor is NOT mentioned as a consideration for landfill site selection?

    <p>City waste management policies</p> Signup and view all the answers

    What is the purpose of a buffer zone around landfill sites?

    <p>To reduce noise and odor nuisances</p> Signup and view all the answers

    How can future land use be a consideration in landfill site selection?

    <p>Urban settlements may expand rapidly</p> Signup and view all the answers

    What is one risk associated with placing a landfill too close to an airport?

    <p>Potential hazard to aircrafts due to bird strikes</p> Signup and view all the answers

    What factor influences transportation costs relative to landfill site selection?

    <p>Distance from the landfill to waste generation locations</p> Signup and view all the answers

    Study Notes

    Landfill Site Selection

    • Neighborhood:
      • Landfills should be situated at least 500 meters away from residences, waterways, and water bodies.
      • Consider future urban expansion and avoid locations near airports due to bird strike risks.
      • Buffer zones with vegetation help segregate landfills from residential areas, minimizing noise, odor, and vector migration.
    • Geological and Hydrogeological Conditions:
      • To mitigate environmental risks, carefully assess the geological and hydrogeological conditions of the site.
      • Sites with low hydraulic conductivity (less than 1 x 10-8 m/s) are preferable to minimize construction costs.
      • Investigate groundwater flow direction to establish a comprehensive monitoring system.
      • Geological maps and soil borings can provide valuable information during site selection.

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    Description

    This quiz covers essential guidelines for selecting landfill sites, focusing on their proximity to neighborhoods and assessing geological conditions. Key considerations include distance from residences, airport locations, and the importance of monitoring groundwater flow. Learn the best practices for environmental safety in landfill management.

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