Title
Landfill Site Screening Criteria for Waste Disposal
Law
Denr Administrative Order No. 98-50
Decision Date
Jun 29, 1998
The Department of Environment and Natural Resources establishes guidelines for identifying and screening sites for sanitary landfills, ensuring safe and sanitary disposal of municipal solid waste while considering environmental impacts and local conditions.
administrative law
waste management
solid waste
A

Policy Statement

  • The DENR adopts a system aimed at ensuring safe and sanitary disposal of waste as mandated by PD 1152 and PD 984 (Pollution Control Decree of 1976).

Definitions of Key Terms

  • Absolute Criteria: Minimum site requirements necessary for consideration.
  • Conditional Criteria: Additional conditions enhancing site selection but not exclusionary.
  • Confined Aquifers: Aquifers located between impermeable layers.
  • Generation Rate: Amount of waste produced per person per day.
  • Haul Distance: Distance traveled from collection area to disposal or treatment site.
  • Impervious: Material that does not allow passage of liquids.
  • Leachate: Contaminated liquid from waste decomposition.
  • Liners: Barriers (clay or synthetic) preventing leachate leakage.
  • Perennial: Present throughout the year.
  • Recharge Area: Highly permeable area supplying water.
  • Sanitary Landfill: Engineered waste disposal site controlling environmental impact.
  • Additional terms include liquefaction, permeability, seismic, sinkholes, transfer station, topography, up-gradient, visual barriers, and waste characteristics.

Scope of Application

  • These guidelines apply to all waste disposal sites throughout the Philippines, whether operated by LGUs or private entities.

Landfill Site Identification and Screening Criteria

  • Criteria include:
    1. Area capability and availability
    2. Haul distance and time
    3. Proximity to sensitive groundwater resources
    4. Proximity to perennial surface water
    5. Occurrence of flooding
    6. Proximity to sensitive land users
    7. Local ecological conditions
    8. Current and future land use
    9. Seismic conditions
    10. Geologic conditions
    11. Soil/land conditions
    12. Topography
    13. Proximity to airports
  • Detailed parameters are provided in Annex A of the Order.

Site Identification and Screening Methodology

  • Steps involved:
    a. Data acquisition from maps, aerial photos, local interviews.
    b. Plotting excluded areas based on absolute criteria on maps.
    c. Identification of candidate areas for field survey.
    d. Conducting site surveys and evaluations.
    e. Selecting preferred sites.
  • The process includes preparing an acceptability matrix evaluating sites qualitatively.
  • Final landfill site selection requires council approval following public consultation and considering technical/financial factors.

Legal Provisions on Severability

  • If any part of the guidelines is declared unconstitutional or invalid, remaining provisions continue to be effective.

Repealing Clause

  • Previous inconsistent guidelines or rules are amended or repealed to align with these guidelines.

Amendments

  • The DENR may amend or modify these guidelines as necessary over time.

Effectivity

  • The guidelines became effective 30 days after publication in the Official Gazette or a newspaper of general circulation, dated June 29, 1998.

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