asked the Secretary of State for Wales what are the estimated reserves of sand and gravel within the area of each Welsh county, what estimates he has of the requirements for sand and gravel in the Principality up to the end of the century, what mineral reserves in Wales he expects to be worked out before the end of the century, and if he will make a statement.

The most recent estimates of permitted reserves of land-won sand and gravel were made by the aggregates working parties for North Wales and South Wales following a survey of the position on 1 January 1982. The figures are:

	Permitted sand and gravel reserves at 1.1.82 Million Tonnes
NORTH WALES
Clwyd	15·3
Gwynedd	4·6
South Wales
Dyfed	1·2
Powys
Mid Glamorgan	0·5
West Glamorgan
Gwent	Nil
South Glamorgan	Nil

Note: Figures for South Wales are bracketed for reasons of commercial confidentiality.Reserves of marine deposits and gravel were not quantifiable.Requirements for the production of sand and gravel for the period 1981–1991 as identified by the aggregates working parties are set out in Welsh Office circular 30/82, "Guidelines for Aggregates Provision in England and Wales". The requirements for both land-won and marine-dredged production for 1981–1991 are:

Region	Requirement for sand and gravel Million Tonnes
North Wales	17·26
South Wales	14·25

Further surveys of both permitted reserves and forecast demand will be carried out in 1986.Reserves of sand and gravel or other minerals likely to be worked out over a future period cannot be readily or accurately assessed.

	1979–80 Outturn £M	1980–81 Outturn £M	1981–82 Outturn £M	1982–83 Outturn £M	1983–84 Outturn £M	1984–85 Estimated Outturn £M	1985–86 Provision M
Clwyd	16·7	13·3	18·5	15·1	15·0	12·3	12·8
Dyfed	18·9	16·5	20·2	16·2	16·7	17·7	17·3
Gwent	13·6	14·5	17·5	14·2	14·0	14·8	24·5
Gwynedd	16·5	13·6	16·2	13·1	12·7	13·6	14·9
Mid Glamorgan	17·8	15·7	19·7	16·9	17·5	17·0	18·0
Powys	14·6	12·8	10·8	8·7	11·0	11·1	11·2
South Glamorgan	12·4	10·9	12·4	12·1	12·8	9·9	10·2
West Glamorgan	12·6	11·1	12·5	12·2	11·7	13·7	13·0
Wales	122·9	108·4	127·8	108·5	114·4	110·1	121·7

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