Select Committee on Environmental Audit Written Evidence


Submission of evidence from the Quarry Products Association

  1.  The Quarry Products Association (QPA) is the major trade association representing the UK aggregates industry.

  2.  QPA members include major national and international quarry companies, and many small and medium sized businesses significant in regional and local markets. QPA members account for 90% of the output of aggregates in the UK. The scope of QPA membership includes supply of crushed rock and sand and gravel aggregates—both land won and marine dredged—recycled aggregates, asphalt, ready-mixed concrete, lime, mortar and silica sand.

  3.  The Committee considered the issue of the aggregates levy in some detail before the levy decision was announced in the 2000 Budget, and the issues we have raised in this submission are closely related to those discussions. In particular, concerns raised by the Committee about the criteria for assessing the environmental merit of the (then proposed) levy have yet to be addressed by Government. We have focussed particularly on two of the key inquiry issues identified by the Committee.

    —  The impact of specific environmental tax measures (or their absence).

    —  The adequacy and effectiveness with which the impacts of existing fiscal instruments are monitored and appraised.

THE IMPACT OF SPECIFIC ENVIRONMENTAL TAX MEASURES (OR THEIR ABSENCE)

  4.  The QPA evidence will focus on the aggregates levy, and issues associated with the development and implementation of the levy. The prospect of an aggregates tax or levy was introduced in the July 1997 Budget, the levy was announced in the March 2000 Budget and implemented in April 2002, therefore providing an appropriate case history to test the policies and principles set out in the 2003 Pre-Budget Report, previous Budgets and Pre Budget Reports, and the review associated with the 2002 Pre Budget Report, "Tax and the environment: using economic instruments".

  5.  The 2003 Pre Budget Report lists the environmental impacts of the aggregates levy (table 7.2) as "Reductions in noise and vibrations, dust and other emissions to air, visual intrusion, loss of amenity and damage to wildlife habitats".

  6.  It should be noted that the development and implementation of the aggregates levy was accompanied by no detailed environmental objectives, targets, or measurement criteria, other than the very general assertions set out in successive Budgets and Pre Budget Reports.

  7.  It has been apparent for some time that the aggregates levy is likely to be shown to be a weak environmental measure. Prior to the introduction of the levy, the QPA had commissioned independent research on the (prospective) levy from two eminent environmental economic consultancies, Ecotec Research and Consulting Ltd, and Professor David Pearce/EFTEC.

  8.  The two reports concluded:

    "In conclusion, the positive environmental effects associated with an aggregates tax seem to be rather limited. The tax would offer no incentive to producers to reduce the environmental impact of their operations. The only impact of the tax would be to reduce demand (which seems relatively price inelastic), and yet the linkage between output and the external costs associated with aggregates supply may be rather weak. Furthermore, the environmental impact of a change in demand depends both on the way in which the (more or less) marginal reduction in output occurs, and on the way in which these changes are reflected in changes in external costs.

    In terms of its potential for encouraging recycling of construction wastes, the effect is unlikely to be strong unless the differential between a tax on primary sources and recycled materials is set at a very high level. It would be better to address (though administratively difficult since this would require valuable Parliamentary time) the primary legislation which allows those handling construction wastes to employ them for somewhat superfluous purposes which are exempt from waste management licensing.

    There would appear to be alternative ways of addressing, within the planning system, both the issue of demand and the environmental impacts of aggregates supply. As mentioned above, there are also better ways of encouraging re-use of construction wastes. The case for an aggregates tax is therefore highly questionable."[66]

    "We conclude that an aggregates tax is an extremely inefficient way to try and secure an environmental target: (a) because the demand is inelastic and (b) because the tax is a products tax rather than an externality tax. This suggests that a package of measures directly targeted at the environmental impacts will be more effective than an aggregates tax."[67]

  9.  The key point, that the levy is inherently inefficient because it is a crude volume tax, is highlighted by EFTEC/Pearce:

  10.  "But the fact that the `product' is taxed rather than the externality, has formidable implications for the effectiveness of the tax. For it means that the industry has no incentive to reduce the environmental impact of each tonne of aggregates. Were it to do so, it would reduce the environmental impact, but it would not reduce its tax burdens. The only way a product tax helps is by reducing the quantity of the product and, as we have seen above, this will not happen on any significant scale because of the inelasticity of demand for aggregates. This feature of product taxes for environmental control is well known. Environmental taxes should, as far as possible, always be targeted at the externality itself, not the product embodying the externality".

  11.  So in practice the levy can only produce significant environmental benefits if either:

    —  it generates a significant reduction in the total volume of extraction of aggregates, particularly if that reduction is focussed on sites with poor environmental performance; and/or

    —  it incentivises operators to improve environmental standards and further reduce environmental impacts.

  12.  In reality the aggregates market has shown the following characteristics since the introduction of the levy.

  13.  Total primary aggregates demand has generally declined over the past 21 months, due to both the impact of the levy and other market factors.

  However, the key levy impact in the primary aggregates market has been reduced demand for low quality crushed rock, a "by-product" of the production of premium rock, for which demand has not changed significantly.

  As a result stockpiling of low grade rock in quarries has increased significantly.

So, while overall rock sales across the weighbridge have declined due to the levy, the volume of total extraction has been less affected—the balancing item being increased stockpiling of low grade aggregates.

  Sales of recycled materials such as construction and demolition waste have continued to increase, but the trend growth remains similar to the pre-tax growth rate (in practice, new "waste" definitions now being implemented by Government are in danger of reducing the existing level of sales from recycled sector).


  14.  The key tax impact has been the substitution of low grade (now stockpiled) primary aggregates by other non-taxed extracted materials. These include the use of tax exempt minerals such as shales and clay in low quality aggregates markets.

  15.  The market has seen no significant change in the overall level of quarrying of crushed rock and sand and gravel aggregates and china clay and slate (although some substitution of china clay waste and slate waste for crushed rock waste), but an increase in the quarrying of other non taxed minerals such as shale for use in aggregates markets.

  16.  The net impact of this market substitution of lower quality crushed rock is likely to have been an overall increase in the total volume of quarrying and extraction of minerals for the supply of aggregates markets by some 2/3 million tonnes in Great Britain, including both taxed and untaxed minerals (conversely, it is difficult to see how this changing supply pattern could have led to any net reduction in total extraction).

  17.  Anecdotal evidence would suggest that the marginal transfer of supply of lower quality materials from crushed rock quarries to some other, less well regulated, sources of supply is likely to have generated overall environmental disbenefits.

  18.  The overall conclusion is that, while the levy has reduced demand for low quality crushed rock, the levy has generated a less efficient use of total mineral resources, an overall increase in mineral extraction, hence the use of total production as a proxy for reducing environmental impacts has failed.

  19.  This overall pattern of market changes is unlikely to have generated overall environmental improvements—indeed, the most likely net environmental outcome is perverse.

  20.  The environmental impact of the aggregates levy can also be examined in more detail by assessing the impact of the levy on the specific outcomes listed by the Treasury, most recently in the 2003 Pre Budget Report. ("Reductions in noise and vibration, dust and other emissions to air, visual intrusion, loss of amenity and damage to wildlife habitats.")

IMPACT ON "NOISE AND VIBRATION, DUST AND OTHER EMISSION TO AIR"

  21.  The earlier listing of the market impacts summarises operational consequences of the levy, notably:

    —  The increased stockpiling of lower quality materials in aggregates quarries.

    —  The transfer of supply from taxed aggregates operators to other non-taxed suppliers of extracted minerals.

    —  The likely net increase in total extraction of materials to supply aggregates markets.

    —  The increased activity of poorly regulated operators at the margin of the industry exploiting materials without tax liability.

    —  The structure of the levy, providing no incentives for the aggregates industry to reduce its tax burden by further maximising/reducing environmental impacts.

  Hence the operational environmental impacts of the levy are likely to have been perverse.

  22.  In this context it can be noted that the latest recording of serious pollution incidents affecting all media (air, land, and water) by the Environment Agency indicates a relatively low level of such impacts by the aggregates industry.

EA SECTOR ANALYSIS OF SERIOUS POLLUTION INCIDENTS


2001
2002
% change

Mining and quarrying
9
7
-22
Other Sectors
1,845
1,459
-21
Total
1,854
1,468
-21


  Of the seven incidents recorded for the mining and quarrying sector for 2002, two were related to (taxed) primary aggregates extraction, accounting for 0.13% of the total.

IMPACT ON "LOSS OF AMENITY AND DAMAGE TO WILDLIFE HABITATS."

  23.  There is no evidence that the levy has led to an improvement in the impacts above. Indeed, based upon the market impacts and marginal transfer of supply to non-mainstream aggregates suppliers described earlier, it is difficult to see how improvements could have been achieved.

  24.  In reality the aggregates industry has an impressive record of restoration and aftercare of sites to enhance wildlife habitats and biodiversity. English Nature has identified over 700 sites of Special Scientific Interest which have origins in aggregates and other mineral operations. The Quarry Products Association and predecessor association have been running an annual restoration award scheme for 35 years, with over 300 awards made, and the industry has worked closely with organisations such as English Nature, the RSPB and the Wildlife Trusts to promote and implement conservation/biodiversity best practice at operational and restored sites.

  25.  The latest English Nature assessment of the condition of SSSIs in England ("England's best wildlife and geological sites—the condition of Sites of Special Scientific Interest in England in 2003—December 2003) identifies that 42% of SSSI land by area is in unfavourable condition. Of the reasons identified for generating such unfavourable conditions, the category of "planning permission—other mineral and waste" has the lowest recorded adverse impact.

RECYCLING

  26.  The associated purpose of the aggregates levy is to encourage recycling. To quote the 2003 Pre Budget Report (Para 7.64), the levy "also promotes greater efficiency in the use of virgin aggregates and the development of alternative materials such as waste tyres".

  27.  The development of the recycling sector has been as follows:

THE GROWTH OF SUPPLY OF RECYCLED AND SECONDARY AGGREGATES


Volume Summaries million tonnes pa (GB)
Recycled/Secondary Source
1989-90*
2001**

Construction/Demolition waste
11
42
Road planning's
6
6
Slags
4.4
2.3
Colliery spoil
2.8
0.8
China clay waste
1.5
2.3
Slate waste
0.5
0.6
Other
5.8
6.0
Total
32.0
60.0

* From "The occurrence and utilisation of mineral and construction wastes" ARUP Economics for the DoE 1991.

** Survey of Arisings and Use of Construction and Demolition Waste in England & Wales in 2001: ODPM/Nov 2002 Table 5.9.

** Survey of Arisings and Use of Secondary Materials as Aggregates in England & Wales in 2001: ODPM/Nov 2002 Page 11, with QPA estimate for Scotland to produce GB total.

  MARKET SHARES OF PRIMARY & RECYCLED/SECONDARY AGGREGATES

COMPARISON WITH PRIMARY AGGREGATES SUPPLY MILLION TONNES PA (GB)


Aggregates Source
1989
2001
2002
2003*
% Change

Primary
300
222
214
205
-32
Recycled/Secondary
32
60
62
65
+103
Total
332
282
276
270
-19
Recycled/Secondary
Market share
9.6%
21.3%
22.5%
24.1%

*QPA estimate for 2003.

  28.  The tables above demonstrate a very significant growth in the supply of recycled/secondary/alternative aggregates in recent years. This growth has occurred over the last 12/15 years, without an aggregates levy, for reasons including:

    —  The increasing cost of landfill, including the impact of the landfill tax.

    —  The increasing willingness of clients to use such materials, implying greater technical awareness and confidence in these materials.

    —  More effective and "professional" marketing of recycling and secondary materials.

CONSTRUCTION AND DEMOLITION WASTE, ROAD PLANNINGS, AND RAILWAY BALLAST

  29.  The supply of these recycled materials is mature and well established. The results of the ODPM research carried out in 2001, indicates that the potential additional supply from these sources is relatively restricted. The August 2002 ODPM consultation (Consultation Paper—Draft National and Regional Guidelines for Aggregates Provision in England 2001-16 (Paragraph A15)) includes the following assessment:

    "The available evidence suggests that there has been a rapid increase in the use of C and D waste (construction and demolition waste) since 1990. This means that most of the C and D waste that is easy to recycle is now being recycled and therefore it is likely to become progressively more difficult to increase the use of C and D waste further. While there is potential for increased supply from some mineral wastes, a number of other sources of alternatives to primary aggregates are decreasing as a result of industrial changes."

SECONDARY MATERIALS

  30.  As with C and D waste, some secondary materials such as iron and steel slags are well-established elements of aggregates market supply. In such cases the aggregates levy has had little impact on supply from domestic sources.

  31.  The most significant noted change in the pattern of supply has been the expansion of untaxed quarrying, encompassing both legal and illegal activities.

  32.  Illegal activities refer to the supply of untaxed rock and sand and gravel into aggregates markets by suppliers who have not registered for aggregates levy or falsified returns to Customs and Excise. While such illegal activities account for a low proportion of the aggregates market, and evidence of such activities in Great Britain has been limited, it has proved a very significant problem in Northern Ireland.

  33.  More significant than these illegal activities in the expansion in supply of extracted minerals outside the scope of the aggregates levy. The growing significance of these non-taxed minerals is due to the structure and detail of the levy, which includes a wide range of materials which are not subject to the levy or exempt from the levy. Such exceptions include:

    "Anything consisting entirely of the following substances:

    —  China clay waste.

    —  Ball clay waste.

    —  Spoil from the processing after extraction of industrial minerals.

    —  Aggregates necessarily arising from the laying of foundations or of pipes and cables on building sites.

    —  Aggregates necessarily arising from navigation dredging.

    —  Aggregates necessarily arising from highway construction.

  Any material, more than half of which consists of the following substances:

    —  Clay, soil, vegetable or other organic matter.

    —  Coal.

    —  Lignite.

    —  Slate.

    —  Shale.

    —  Processing waste resulting from the separation of coal, lignite, slate or shale from other aggregates after extraction.

    —  Drill cutting from oil exploration in UK waters or from land drilling.

    —  Materials arising from utility works.

  Any overburden arising from the extraction of these materials or from the extraction of any industrial minerals is taxable unless it is a specifically exempt material. Interburden from china clay and ball clay extraction is not taxable."[68]

  34.  The fact that the legislation allows materials comprising of more than 50% of the listed minerals and other materials, and under 50% of (otherwise tax liable) rock and/or sand and gravel, to be sold without tax has stimulated new mineral workings of these "mixed" materials, and other re-activation of old workings of poor quality materials. While we do not have quantified evidence, we believe it likely that in general the environmental impacts of such opportunistic extraction and workings would be greater than equivalent supply from an established and fully regulated crushed rock or sand and gravel quarry, wharf, or depot.

THE ADEQUACY AND EFFECTIVENESS WITH WHICH THE IMPACTS OF EXISTING FISCAL INSTRUMENTS ARE MONITORED AND APPRAISED

  35.  The lack of clear criteria for monitoring and assessing the potential and actual impacts of the aggregates levy has been a long standing problem.

  36.  This submission has already identified that the aggregates levy was introduced with no detailed environmental objectives, targets, benchmarks or measurement criteria, other than very generalised statements.

  37.  This failure follows a similar lack of clarity leading up to the implementation of the aggregates levy. In 1999 the QPA submitted a detailed package of regulatory and voluntary proposals to Government as the basis for a more environmentally effective alternative than an aggregates levy. During the course of the subsequent negotiations between the QPA and Government, Government's failure to identify policy objectives created real problems for the industry during the negotiations. The QPA proposal was eventually rejected by Government as inadequate, but in over 12 months of negotiations the QPA was never advised as to what would constitute an "adequate" proposal. This issue was reflected in earlier Committee inquiries, and was compounded by the willingness of the Government to implement a negotiated agreement with the pesticides industry—as an alternative to a pesticides tax—when the proposals put forward by that industry were notably less significant (both in terms of cost and likely environmental effectiveness) than the proposals for a negotiated agreement put forward by the quarrying industry.

    "But we entirely endorse the view that the Government has failed to clarify what the objectives of the tax should be, and to specify a clear criterion by which to judge any further revision of the voluntary industry package. We found it interesting, for example, that the Minster placed so much emphasis on increasing recycling as a primary objective of the tax—as opposed to ameliorating the environmental impacts which quarrying gives rise to. We were also surprised that the Minister and the Treasury in both oral and written evidence were unable to throw more light on how they would assess voluntary proposals against the benefits brought about by a tax. We asked the Treasury for written clarification, but their response pointed only to the different effects each option would have."[69]

  38.  There is a history of a lack of transparency and openness in the appraisal of environmental taxation which is still apparent in respect of the aggregates levy.

  39.  Since the implementation of the aggregates levy there have been two specific assessment exercises by Government.

  40.  First, in early 2003 HM Customs and Excise carried out a survey on the issues of quarry waste and the impact of the aggregates levy.

  The industry assumed that this survey was in response to clearly identifiable concerns that, due to the structure of the levy, low quality aggregates (sometimes referred to as quarry waste) were accumulating in rock quarries due to substitution in lower quality aggregates markets by other extracted materials not liable to the levy (as described earlier in this evidence). In reality the survey was not concerned about this accumulation of stockpiles as a result of tax generated substitution, but only materials identified by Customs and Excise as:

    "Characterised by their extremely limited use as an aggregate and, consequently, have little or no commercial value".[70]



  41.  As a consequence of the very limited definition of waste or low quality aggregates covered by the survey, the survey process and results were of minimal value in terms of providing useful assessment information for the levy. The terms of reference of the survey were drawn far too tightly to enable a proper assessment of the key substitution issues associated with the levy.

  42.  Second, due to the increasingly well documented economic and environmental problems arising in Northern Ireland following the implementation of the levy, Government commissioned a report, "The Assessment of the State of the Construction Aggregates Sector in Northern Ireland" (the Symonds Report). This report validated the issues highlighted by QPA Northern Ireland, and has resulted in an acknowledgement from the Treasury that the levy has not met its objectives in Northern Ireland, and the movement towards a reduced levy rate/environmental agreement scheme for Northern Ireland confirmed in the 2003 Pre Budget Report. The industry and authorities in Northern Ireland are relieved at the Treasury's change of policy with regard to the levy, but there is also a frustration that the damaging impacts of the levy were accurately predicted before the levy implementation, but were not given adequate consideration by Government at that stage. A degree of complacency about Government's consideration of the levy effect in Northern Ireland prior to the introduction of the levy can be detected in Government statements.

    "We have listened carefully to arguments about the implications of the aggregates levy for Northern Ireland. The industry there will be generally protected because imports of aggregate will be subject to the levy and exports will be relieved. Opportunities to smuggle aggregates into Northern Ireland will be pretty limited because of the bulky nature of the products involved and their low value. Customs operational staff have much experience of dealing with such matters. I am confident that, combined with the legitimate quarrying industry, Customs will combat the potential for smuggling across the Northern Ireland land border."

  Stephen Timms, Financial Secretary, Hansard, 23 April 2001

ENVIRONMENTAL ASSESSMENT OF THE AGGREGATES LEVY

  43.  The Government states in the 2003 Pre Budget Report that:

    "The Government continues to monitor the impact of the levy to ensure that it is achieving its objectives." Paragraph 7.65.

  44.  In spite of this statement, however, we are concerned that there has been no apparent general monitoring and assessment process within Government which clarifies the objectives of the levy, and the impact of the levy in meeting these objectives.

  45.  The reality of the position is that the aggregates levy was formally raised as a policy option in the July 1997 Budget, the levy was introduced in April 2002, and has now been operating for nearly two years, but there are still no clear objectives for the levy in terms of either environmental outcomes or recycling volumes.

  46.  The QPA produced a detailed assessment of the impact of the aggregates levy in October 2003, copies of which were submitted to the Treasury and other Government departments with an interest in the levy.

  47.  This assessment acknowledged that information on the impact of the levy was inevitably incomplete, but there was reasonable evidence that the market impact of the levy had been to increase the total volume of extraction of minerals for use in aggregates markets, including some substitution of lower quality crushed rock by other extracted materials not liable to the levy. Taking account of the distorting effect of the levy, which has:

    —  encouraged extraction and/or supply of minerals not subject to the aggregates levy;

    —  increased the stockpiling of low quality material within aggregates quarries, and reduced the resource efficiency of such operations; and

    —  provided no incentive for good environmental performance.

  there is a significant likelihood that the overall environmental impact of the levy to date has been perverse, (as described earlier in this submission).

  48.  Similarly, while the supply of recycled and secondary aggregates has increased in recent years, there is little evidence that the post-levy trend has significantly exceeded the pre-levy trend of increase in the supply of recycled and secondary materials into aggregates markets.

  49.  The 2003 Pre Budget Report makes the following assessment of the levy.

    "There are early indications that extraction of virgin aggregate has decreased since the levy's introduction and that construction companies are using more construction and demolition waste rather than sending it to waste disposal sites."

PRE-BUDGET REPORT—PARAGRAPH 7.65

  50.  The Report goes on to state "The Government has examined with the aggregates industry and others a range of issues relating to the scope of the levy in order to clarify the liability of certain materials, protect revenue and ensure that the levy continues to fulfil its environmental objectives."

2003 PRE BUDGET REPORT—PARAGRAPH 7.65

  51.  These are very superficial assessments which takes no account of the market consequences of the levy described earlier, nor the environmental implications of these changes.

  52.  The assertion that "and ensure that the levy continues to fulfil its environmental objectives" is made without any supporting information or clarity on the environmental objectives, or how the levy has impacted upon such environmental objectives, or what criteria have been used to judge the claimed environmental success.

  53.  There remains an outstanding need for Government to commission and/or participate in a comprehensive and transparent assessment of the environmental impacts of the aggregates levy. In spite of carrying out such a process in Northern Ireland, there is no evidence of a willingness within Government to review the environmental impact of the levy in Great Britain. We believe the available evidence is sufficient to identify the urgent need for the implementation of such an assessment.

January 2004



66   Source: Environmental Effectiveness of a tax on the supply of aggregates-Ecotec Research and Consulting Ltd 1998. Back

67   Source: The Economic Benefits of Environmental Awareness and Training Programmes in the Aggregates Industry-Professor David Pearce/EFTEC Ltd 1999. Back

68   Source: Notice AGL1 March 2003, HM Customs and Excise. Back

69   EAC Fourth Report-The Pre Budget Report 1999: Pesticides, Aggregates and the Climate Change Levy-14 Feb 2000. Back

70   Source: Aggregates levy-Consultation on Waste Aggregate-Customs and Excise Dec 2002. Back


 
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