Hampshire, Portsmouth and Southampton Minerals and Waste Local Plan: Adopted December 1998

Inert Waste Scenarios

Main Contents Page	Need for Waste Facilities	Clinical Waste
6. Meeting the Need for Waste Management	Non-Inert Waste Scenarios	Scrapyards
General Considerations	Inert Waste Scenarios	Waste Water (Sewage) and Sewage Sludge
Waste Arisings	Landfilling and Landraising	Ancillary Waste Development
Waste Minimisation and Recycling	Waste Processing
Resource Recovery	Difficult and Special Waste

6.50 The following two scenarios were developed in the preparation of the Plan.

(i) 'Worst Case' Scenario

This scenario assumes the current reduction level of Category A waste to be 0% with no increase over the Plan period. In the absence of alternatives, it assumes disposal to landfill.

(ii) 'Best Case' Scenario

This scenario is in line with SERPLAN waste planning advice (RPC2700) and assumes an increase from 0% to 25% reduction in Category A waste requiring disposal by 2000. In the absence of alternatives, it assumes all residual waste is disposed of to landfill.

6.51 The two scenarios tested in Table 9 show that by the end of 2001 Hampshire will still have significant permitted inert (Category A) waste landfill capacity remaining. Under the 'Worst Case' scenario remaining permitted void capacity would stand at approximately 11.8 million cubic metres. This would increase under the 'Best Case' scenario to approximately 13.0 million cubic metres. Revision of these scenarios in the light of more recent information on permitted void space, as referred to in paragraph 6.38 above, reduces this range of surplus inert waste void space to between 6.6 and 7.7 million cubic metres. Notwithstanding this reduction, in view of the large surplus of permitted void space that is expected to remain at the end of the Plan period, it is considered unnecessary to identify additional sites for inert waste landfill in the Plan.

Table 9: Forecast Waste Disposal Requirement for Inert Waste 1 April 1993 - 31 December 2001
Scenario	Forecast Category A Waste Arisings 1993-2001	Reduction Target	Total Category A Waste Disposed to Landfill		Void-space remaining at 31 December 2001
	(thousand tonnes)		(thousand tonnes)	(thousand m³)	(thousand m³)
Worst Case	14884	0%	14884	9923	11796
Best Case	14884	25% (by 2000)	13190	8793	13001
(figures rounded) SERPLAN conversion formula used to convert tonnage to in-tip equivalent volume: 0.67 tonnes Category A waste per cubic metre.