Frequently Asked Questions


  • What is a sanitary land fill and what differentiates MCWMC landfill from all other existing landfills?

    • A sanitary landfill is a pit with a protected layer bottom where trash is buried in multi-layered format and compressed to make it more solid and covered to prevent emission of foul odor and gas, strolling of flies and isolate the trash from the environment.
    • The alternative layering of garbage, soil, liners and pipes ensures that the waste release is safe to the environment--particularly to the communities within and around the sanitary landfill complex --by eliminating harmful pollutants from accumulated waste and allowing safe decomposition.

  • How does an engineered sanitary landfill differ to an open dumpsites?

    • A sanitary landfill provides an organized way of waste management. Unlike an open dumpsite, it needs to be monitored to ensure that the proper procedures and requirements mandated by law are being followed. Soil is the major component given that it is applied in the landfill on a regular basis as covering of the waste. There is also an assurance the land and water nearby the sanitary landfill are not polluted for the fact that the waste undergone various treatments to avoid hazardous and toxic chemicals.

  • How does Metro Clark’s engineered sanitary landfill work?

    • The process starts by digging a large hole in the ground. It is then lined with thick plastic liners and layers of clay. A network of plumbing that works as a collection system for any liquids can be found in the bottom.
    • Waste can be added once the landfill is set up. However, trash are not just simply added. They are dumped in layers which are placed alternately with soil. This alternation of materials reduces odors and allows for more rapid decomposition. The leachate will then be collected by the pipes and goes to the leachate pond. It runs through different stages in the leachate pond to reduce the hazardous materials then diverted to reed bed to break down harmful chemicals before releasing. The methane gas produced by the decomposed wastes goes to the gas capture facility and burn 24/7.

  • What are the documentary requirements when entering MOA with MCWM?



      • An updated company Profile with the ff. valid permits and certificates:

      • Certificate of Registration and Tax Exemption (for Locators) or Mayor's permit
      • SEC Registration (if applicable)
      • DTI
      • BIR Registration
      • Other Clearances or certifications


      • Documentary requirements of the Non-Hazardous Waste Generators
      • A valid Transporter Registration Certificate (TRC)
      • CCO Registration Certificate Transporter (for Asbestos)


      • Documentary requirements of the Non-Hazardous Waste Generators
      • Environmental Compliance Certificate
      • A valid TSD (Treatment, Storage and Disposal) Facility Permit that matches MCWM’s TSD for specific waste to be disposed of
      • EMB Certificate of Accreditation of Pollution Control Officer
      • Certificate of Product Registration for Equipment or Devices from DOH (for Health Care Waste Treaters)
      • Technical Performance Evaluation Report issued by NRL-EAMC (for Health Care Waste Treaters)
      • CCO Registration Certificate Service Provider (for Asbestos)


      • Documentary requirements of the Non-Hazardous Waste Generators
      • Certificate of Non-coverage for DENR-EMB
      • PEZA Certificate of Registration as Waste Hauler/Collector wherein MCWM is stated as Final Disposal Site (certificate may follow for new PEZA applicants upon its release)
      • Latest OR/CR of Authorized Transport Vehicle
      • Proof of Training on Waste Management under PEZA