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Small landfill closure criteria – Risk assessment for small closed landfills

Publication date:  December 2002
Publication reference number:  TR 124

This report presents a method of risk assessment for small closed landfills. Small landfills have been defined as being less than 15,000 cubic metres in volume.

The project developed a practical method to help district and city councils toidentify the risks from small closed landfills. A semi-quantitative risk assessment method was developed based on a hazard/ pathway/ receptor risk model. This allows individual hazards at each site to be ranked (high, medium, or low) and individual landfills to be ranked against each other. Ranking landfill sites allows councils to set priorities, target monitoring, and implement appropriate management plans.