Appendix B: Landfill FCA Model Input Costs - Default Values

The following tables provide guidance on indicative costs (range, typical and default costs or values) for items scheduled in the model Cost Input worksheet. As you may notice, the model already has data in the various input sheets. However, these default values are inserted only to enable the model to generate an IBC value.

Before you take the results of this model beyond an initial drafting stage we strongly advise you to obtain advice on these inputs. The rates provided are for guidance only and are likely to alter according to relevant market and economic parameters as well as site-specific data.

The sources - and therefore the accuracy - of costing information will depend on whether the site is an existing and operating landfill or a planned site, and the degree to which planning, resource consent processes and design have progressed.

Other sources of cost and conversion values that have been used to produce the figures given in the following tables include:

current site development costs
operators of landfills of a similar size
consultants' reports on landfill development
contractor and supplier estimates and quotes
tendered contract prices
construction and contracting cost handbooks and indices.

The following tables are presented in the same order as in the model Cost Input worksheet.

Updating the typical values and ranges in the tip boxes

Periodically the Ministry for the Environment may issue an update to the cost and/or other information contained in the tip boxes. The Updater will consist of an Excel spreadsheet. When the Updater is opened, Excel may ask about virus protection. Select 'Enable Macros'. Answer Yes to the dialogue boxes that follow to select an FCA model file to update. The file must be the same version as the Updater. Once a valid file is selected, the typical values and ranges will be automatically updated and the FCA model saved under the same name.

The date on which the cost data were developed will be shown on the Instructions worksheet.

Table B1 presents indicative costs for planning and pre-development activity components. Note: actual costs will be site-specific and may vary significantly from those presented in the table.

Table B1: Typical planning and pre-development costs

View typical planning and pre-development costs (large table)

Table B2 presents indicative costs for base cost activity components. Note: actual costs will be site-specific and may vary significantly from those presented in the table.

Table B2: Typical base costs

Activity/system	Cost range	Typical/default value
Engineering: Detailed design and documentation	4-7% of capital works costs	6% of capital works costs
Engineering: Construction management	5-8% of capital works costs	6.5% of capital works costs
Contractor's P&G	10-15% of capital works costs	12.5% of capital works costs

Table B3 presents indicative costs for development activity components. Note: actual costs will be site-specific and may vary significantly from those presented in the table.

Table B3: Typical development costs

View typical development costs (large table)

Table B4 presents indicative costs for Operation activity components. Note: actual costs will be site-specific and may vary significantly from those presented in the table.

Table B4: Typical operation costs

View typical operation costs (large table)

Table B5 presents indicative costs for closure activity components. Note actual costs will be site-specific and may vary significantly from those presented in the table.

Table B5: Typical closure costs

Activity/system	Cost range	Typical/default value
Removal of facilities	$30,000-$150,000	-
Modifications to site stormwater, leachate, landfill gas and other systems: Final cover	1-3% of final cover construction cost	1% of final cover construction cost
Modifications to site stormwater, leachate, landfill gas and other systems: Landfill gas system	1-5% of final cover construction cost	1% of landfill gas system construction cost
Modifications to site stormwater, leachate, landfill gas and other systems: Leachate system	1-3% of final cover construction cost	1.5% of leachate system construction cost
Modifications to site stormwater, leachate, landfill gas and other systems: On-site surface water control	1-3% of final cover construction cost	1.5% of surface water system construction cost
Design consultants/third party engineering	6-10% of closure costs	7.5% of closure costs

Post-closure costs include all costs associated with the maintenance and monitoring of a landfill after it has stopped accepting solid waste. Table B6 presents some of the typical individual costs that an owner/operator may incur during aftercare (post-closure care).

Table B6: Typical average aftercare (post-closure care) costs

View typical average aftercare (post-closure care) costs (large table)

Table B7 presents indicative costs for contingency activity components. Note: actual costs will be site-specific and may vary significantly from those presented in the table.

Table B7: Typical contingency costs

Activity/system	Cost range	Typical/default value
Pre-development	15-30% of pre-development cost	20% of pre-development cost
Development	7.5-20% of development cost	10% of development cost
Operations		0%
Closure	7.5-20% of closure cost	10% of closure cost
Aftercare (post-closure care)	0-15% of aftercare cost	7.5% of aftercare cost

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