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Landfill discharges monitoring (section 6 in the Guide)

Monitoring is part of the overall management system for a closed landfill and should consider a variety of situations (low flow/high flow etc) and provide adequate data for the operator and the regional council to monitor environmental effects.

Leachate monitoring

  • quantities, strength and composition of leachate
  • leachate monitoring locations should be established based on variation in the waste disposed of at the landfill.

Landfill gas monitoring (section 6.9)

  • determine the extent of any landfill gas migration offsite
  • identify migration pathways
  • assess risks onsite and at neighbouring properties
  • identify any requirement for landfill gas control measures.

Parameters chosen for surface water and groundwater quality monitoring programmes should be able to:

  • describe the overall status of the waters adequately
  • detect contaminants discharged from the landfill or other relevant sources reliably
  • be measured consistently, quickly and cost-effectively.
  • Trigger levels can be set to provide early warning of possible non-compliance issues.

Significant additional information on monitoring programmes and estimating landfill gas generation is included in this Guide.

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Last updated: 17 September 2007