Table 6: Brownfields input data entry

Volume and area units

Select from dropdown box. Brownfields Input and Geometric Input worksheets must use the same units.

Residual constructed airspace at project commencement date of new project

Enter estimate of residual airspace in Mm³ or m³ (depending on which box was checked at the start).

Life of residual airspace

Calculated automatically (based on the relevant date entered in the General Input worksheet).

Footprint of existing landfill

Enter estimate of footprint area in Ha or m² (depending on which box was checked at the start).

Nature of continuing development

Check box for Overlay or Extension to Footprint as appropriate.

Existing flare station

Checking this box means there is an existing flare station in place that will be utilised for the new development as well.

Existing leachate pre-treatment

Checking this box means there is an existing leachate pre-treatment facility in place that will be utilised for the new development as well.

Existing leachate disposal

Checking this box means there is a leachate disposal system in place that will be utilised for the new development as well.

Stormwater works to be completed during residual life of airspace already constructed

• Stormwater open drains - enter length in metres
• Stabilised drains/ flumes - enter length in metres
• Piped drains - enter length in metres.

Gas system works to be completed during residual life of airspace already constructed

• Horizontal collection pipework - enter length in metres
• Vertical extraction wells - enter length in metres
• Main header pipe - enter length in metres
• Laterals to verticals - enter length in metres
• Condensate traps - enter number.

Final cap to be completed on residual airspace

Enter area in Ha or m² (depending on which box was checked at the start).

Stockpiles

Volumes of existing stockpiles for topsoil, unsuitables, sub-topsoil, low permeability material, and structural material - enter estimate of volume in Mm³ or m³ (depending on which box was checked at the start).

Value of aftercare fund that has been accumulated to date or amount to be set aside as a start-up fund if nothing has been collected.

Enter $ lump sum.

Waste

For the Brownfields situation waste data is input in the General Inputs sheet as outlined in Table 5 of this section.