Hinkley Point C Development Consent Order Application

Transcription

Hinkley Point C
Development
Consent Order
Application
Environmental
Statement
Doc Ref 4.17
October 2011
Environmental Statement - Annex 5
Waste Management Implementation Strategy
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CONTENTS
1.
INTRODUCTION ............................................................................................................. 5
1.1
Introduction...................................................................................................................... 5
1.2
Objectives........................................................................................................................ 6
1.3
Scope .............................................................................................................................. 7
1.4
Methodology .................................................................................................................... 8
2.
WASTE POLICY............................................................................................................11
2.1
Introduction....................................................................................................................11
2.2
International Policy ........................................................................................................11
2.3
National Policy and Legislation......................................................................................11
2.4
Regional Policy and Legislation.....................................................................................15
2.5
Local Policy ...................................................................................................................16
2.6
Guidance .......................................................................................................................17
2.7
EDF Energy Vision for Waste Management ..................................................................18
3.
THE PROPOSED DEVELOPMENT ..............................................................................19
3.1
Construction Scope for the HPC Project .......................................................................19
3.2
Construction Scope for the HPC Development Site ......................................................21
3.3
Construction Scope for the Off-Site Associated Developments.....................................22
4.
ANALYSIS OF EARTHWORKS AND CONSTRUCTION PHASE WASTES .................29
4.1
Introduction....................................................................................................................29
4.2
Earthworks and Construction Waste at the HPC Development Site..............................32
4.3
Earthworks and Construction Waste at the Off-Site Associated
Developments ............................................................................................................................35
5.
OPERATIONAL WASTES .............................................................................................43
5.1
Operational Wastes at HPC Power Station ...................................................................43
5.2
Operational Waste at the Associated Developments.....................................................45
6.
POST-OPERATIONAL/ DECOMMISSIONING WASTES .............................................47
6.1
Introduction....................................................................................................................47
6.2
Decommissioning Wastes from HPC Power Station .....................................................50
7.
SCHEDULE OF WASTE PRODUCTION ......................................................................51
7.1
Strategic Plan ................................................................................................................51
7.2
Schedule of Waste Production ......................................................................................51
7.3
Implications....................................................................................................................53
8.
ANALYSIS OF LOCAL AND REGIONAL WASTE FACILITIES.....................................55
8.1
Introduction....................................................................................................................55
8.2
Local Facilities ...............................................................................................................55
8.3
Regional Facilities .........................................................................................................62
9.
WASTE OPTIONS APPRAISAL....................................................................................65
9.1
Introduction....................................................................................................................65
9.2
Waste Transportation Options .......................................................................................65
9.3
Waste Facility Options...................................................................................................67
Waste Management Implementation Strategy - Hinkley Point C Project - October 2011
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10.
10.1
10.2
10.3
10.4
11.
11.1
12.
12.1
WASTE PLAN ...............................................................................................................69
Introduction....................................................................................................................69
Construction Phase .......................................................................................................70
Operational Phase.........................................................................................................72
Post-Operational/Decommissioning Phases..................................................................73
KEY PERFORMANCE INDICATORS ...........................................................................75
Targets ..........................................................................................................................75
SUMMARY ....................................................................................................................77
Summary .......................................................................................................................77
TABLES
Table 4.1: Total Earthworks/Construction Phase Waste Quantity Estimates .............................31
Table 4.2: Management of Main Waste Streams at the HPC Development Site........................32
Table 4.3: Management of Main Waste Streams at the Temporary Jetty ..................................33
Table 4.4: Management of Main Waste Streams at the HPC Accommodation Campus............34
Table 4.5: Management of Main Waste Streams at Combwich Wharf Refurbishment and
Extension ...................................................................................................................................35
Table 4.6: Management of Main Waste Streams at Combwich Wharf Freight Laydown Facility36
Table 4.7: Management of Main Waste Streams at Bridgwater A..............................................37
Table 4.8: Management of Main Waste Streams at Bridgwater C..............................................38
Table 4.9: Management of Main Waste Streams at Cannington Park and Ride Facility ............39
Table 4.10: Management of Main Waste Streams at Cannington Bypass .................................40
Table 4.11: Management of Main Waste Streams at Junction 23 ..............................................40
Table 4.12: Management of Main Waste Streams at Junction 24 ..............................................41
Table 4.13: Management of Main Waste Streams at Williton Park and Ride Facility .................42
Table 5.1: Total Operational Phase Waste Quantity Estimates at HPC Power Station ..............43
Table 5.2: Non-Radioactive Operational Waste Per Annum at HPC (based on two EPR units) 43
Table 5.3: Operational Intermediate Level Waste (ILW) Waste Generation and Proposed
Management Strategy for the HPC UK EPRs ............................................................................44
Table 5.4: Operational Low Level Waste (LLW) (two units) .......................................................44
Table 5.5: Spent Fuel (two units) ...............................................................................................44
Table 5.6: Total Operational Phase Wastes at the Associated Development Sites ...................45
Table 6.1: Total Decommissioning/Post-Operational Phase Waste Quantity Estimates ............47
Table 6.2: Estimated HPC Decommissioning Radioactive Waste Quantities.............................50
Table 7.1: HPC Project Strategic Programme ............................................................................52
Table 7.2: Schedule of Waste Production (2011-2023)..............................................................53
Table 8.1: Material Required for Residential/Commercial Developments in Bridgwater 20112121 ...........................................................................................................................................56
Table 8.2: Waste Facility Search for Somerset ..........................................................................58
Table 8.3: Other Landfills located within Somerset ....................................................................62
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FIGURES
Figure 1.1: The Waste Hierarchy ................................................................................................. 6
Figure 3.1: Location of Proposed Developments] ......................................................................20
3
4
1.
INTRODUCTION
1.1
Introduction
1.1.1
This document is submitted as part of the application to the Infrastructure Planning
Commission (IPC) for a Development Consent Order (DCO). It serves as an
implementation strategy for the management of non-radiological waste which will be
produced
during
the
earthworks/construction,
operational
and
postoperational/decommissioning phases of Hinkley Point C (HPC) development site and
the off-site associated developments.
1.1.2
This strategy only considers the management of non-radioactive waste streams, not
spent fuel or radioactive waste which arise during the operation and
decommissioning of HPC, as these are dealt within Chapter 5 (Decommissioning of
HPC) and Chapter 7 (Spent Fuel and Radioactive Waste Management) of Volume 2
of the Environmental Statement. However, for completeness, predicted volumes of
radioactive waste are reported.
1.1.3
Where waste is unavoidably generated, it shall be dealt with in a way that follows the
waste hierarchy (see Figure 1.1) and applies the Best Available Techniques (BAT).
Furthermore, the most sustainable transport options will be employed where
practicable.
Consequently, these principles form the basis of this Waste
Management Implementation Strategy document. If waste is not managed properly
during its handling, storage, transport, treatment and disposal, this can result in
pollution of the environment and can impact upon human health. Hence, this
document aims to ensure that all waste management measures to be employed
protect both the environment and people, and comply with UK legislation (including
the Site Waste Management Regulations 2008, the Environmental Protection (Duty
of Care) Regulations 1991 and the Hazardous Waste Regulations 2005)
(see Section 2).
1.1.4
Waste is defined as any substance or object which the holder discards, intends to
discard or is required to discard. Waste can be subdivided into three broad
categories, namely inert, non-hazardous and hazardous, as described below:
• inert waste does not undergo any significant physical, chemical or biological
transformations (e.g. brick, concrete and glass). Notably, construction and
demolition type waste will be the largest proportion produced from the project;
• non-hazardous waste is reactive but not considered harmful to human health
and/or the environment (e.g. organic matter in household waste); and
• hazardous waste has properties which are considered harmful to human health
and/or the environment (e.g. some remedial waste, batteries and fluorescent
tubes). Hazardous waste will comprise the smallest proportion of waste produced
from the project.
1.1.5
The waste hierarchy requires prevention of waste generation in the first instance and
reducing, as far as possible, the volume requiring disposal once the waste has been
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produced. The waste hierarchy gives an order of preference for waste management
options to minimise the volume for disposal, as illustrated in Figure 1.1.
1.1.6
In conjunction with the waste hierarchy, the proximity principle is considered
throughout this document. The proximity principle, encourages the management of
waste close to its place of generation, thus reducing the impacts of transporting
waste over long distances and promoting management of the waste within its region
of origin.
1.1.7
It is important to note that construction materials used within a nuclear new build
project must be of a higher standard in terms of quality than that for general
construction (e.g. to avoid salt corrosion). However, through the consideration of the
principles set out in this strategy document, it will be possible to achieve a level of
waste re-use/disposal that is in line with, or more sustainable than current waste best
practice. Notably, in terms of earthworks, construction and demolition related waste,
EDF Energy has set a target of re-using, recycling or recovering at least 90% of this
(including soil, but excluding hazardous waste). The remaining 10% would be sent to
landfill (e.g. non-treatable hazardous wastes). This would include a target of reusing100% of excavated clean soils, as far as reasonably practicable.
Figure 1.1: The Waste Hierarchy
Source: Defra
1.2
Objectives
1.2.1
EDF Energy’s aim is to achieve a level of waste management and performance that
is better than current best practice. This can be achieved through the following
objectives:
• ensure waste minimisation through prevention, and where waste is produced
through the HPC Project, that it is re-used, recycled, recovered or disposed of in
the most sustainable manner; and
• provide measures to improve sustainability and minimise vehicle movements
where possible.
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1.2.2
From these main objectives, the following objectives are set and are tied in with the
sustainability aims of the HPC Project.
• prevent and reduce the volumes of waste produced through the application of the
waste hierarchy;
• maximise re-use and recycling within the wider development;
• maximise re-use and recycling outside of the HPC Project; and
• minimise the impact upon the existing waste management infrastructure.
1.2.3
The above objectives will be achieved by ensuring that, where possible, wastes are
minimised at the source. Any waste arisings will be managed in a responsible
manner throughout all phases of the development.
1.3
Scope
1.3.1
This Waste Management Implementation Strategy comprises the following:
• a detailed review of relevant UK, national, regional and local waste policies,
legislation and guidance, and EDF Energy’s vision for waste management
(Section 2);
• the scope of works for each of the developments, including projected timescales
(Section 3);
• an assessment of the earthworks/construction phase related waste, including
analysis of the cut and fill volumes and the construction techniques/materials.
This will enable a detailed calculation of the volume of waste to be produced for
each development (Section 4);
• determination of the precise type, nature and predicted volumes of operational
(Section 5) and post-operational/decommissioning wastes (Section 6);
• a schedule of waste production for the construction of the HPC power station and
the construction, operation and post-operation of the associated developments
ties the various developments together (Section 7);
• comparison of local and regional waste facilities, including current and future
capabilities and capacities (Section 8);
• a Waste Options Appraisal, to be undertaken in liaison with relevant stakeholders,
considering the capabilities, sustainability and cost of various waste facilities in
the surrounding area (Section 9);
• the Waste Plan will be determined by the outcomes of the Waste Options
Appraisal and will set out the most appropriate waste management options and
how these will be implemented (Section 10); and
• the performance of the Waste Plan will be measured by EDF Energy’s Key
Performance Indicators (Section 11).
1.3.2
Furthermore, this document seeks to address and incorporate comments received
during the pre-application consultation.
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1.4
Methodology
1.4.1
The construction areas are:
• the HPC development site (comprising the power station, temporary jetty and
accommodation campus); and
• the off-site associated developments.
1.4.2
Activities with the potential to generate waste at the HPC development site and the
off-site associated developments were considered. The main types of wastes to be
produced at each phase of the development are as follows:
• earthworks/construction waste (e.g. demolition/remedial wastes of any preexisting developments, old formwork, cuttings of rebar/steel structures and from
new infrastructure, buildings and fit-out);
• operational wastes (e.g. maintenance of pipes, equipment and control rooms at
HPC power station, and general waste produced from the workers at their
offices/accommodation); and
• post-operational/decommissioning waste – where applicable (e.g. demolition
waste and spoil).
1.4.3
In order to calculate the anticipated waste volumes for the construction of the HPC
development site, reference has been made to the construction of the Flamanville 3
nuclear power station in France. This is considered to be an appropriate reference
as it used similar construction techniques and is likely to produce comparable waste
types and quantities. As HPC is to have two UK EPR units and Flamanville has only
one, the waste volumes from Flamanville have been doubled with an additional 10%
added to the total calculated volume as a contingency measure. The operational
waste volumes for HPC power station were based upon typical arisings from the
Flamanville nuclear power station during 2006.
1.4.4
The anticipated construction waste volumes arising from the off-site associated
development sites were calculated as approximately 1% of the estimated material
volumes required for construction, as provided by a Quantity Surveyor. The
percentage was considered appropriate based upon experience from other similarly
scaled projects, combined with professional judgement.
Furthermore, as a
conservative measure, a 20% contingency has been assigned to the total
numbers calculated.
1.4.5
The operational waste volumes estimated for the accommodation campuses were
based upon national performance indicators for Sedgemoor residents, as provided by
Somerset Waste Partnership (SWP). Furthermore, consideration was taken of British
Standard 5906, which provides estimates of operational waste generation for various
developments. The operational waste volumes for the non-accommodation campus
sites were derived from experience of similarly scaled projects and
professional judgement.
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1.4.6
The post-operational waste volume estimates for the associated developments were
determined as the estimated volume required for construction (as provided by the
Quantity Surveyor), minus the any infrastructure to remain on site for its legacy use.
The types of waste to be produced from the post-operational phases were
considered to be similar to the construction phase.
1.4.7
To assist in the analysis of local and regional waste facilities, meetings were held
with Somerset County Council (SCC), SWP and the Environment Agency (EA). This
provided detailed information on the current and future capacities of the facilities, as
well as further details on the nature of waste accepted, processes involved and
anticipated costs. A conservative approach to calculating estimated waste volumes
has been assumed, based upon the maximum likely waste volumes. Information
regarding existing waste infrastructure in the vicinity was gathered primarily from the
online NetRegs Waste Directory and other local sources of information, including the
Somerset Waste Local Plan adopted in 2005 and the EA.
1.4.8
Following calculation of the predicted waste volumes and analysis of available waste
facilities, a Waste Options Appraisal was undertaken.
This considered the
capabilities, sustainability and cost of various waste facilities in the surrounding area.
1.4.9
Of note, as the HPC Project evolves and further information becomes available, this
strategy will be updated.
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2.
WASTE POLICY
2.1
Introduction
2.1.1
This section outlines the key international, UK, national, regional, local wastes
policies, legislation and guidance to which this waste strategy will adhere to, as
outlined below:
2.2
International Policy
2.2.1
Directive (2008/98/EC) - This Directive provides the overarching legislative
framework for the collection, transport, recovery and disposal of waste, and includes
a common definition of waste. It encourages the prevention and reduction of harmful
waste by requiring that Member States have control regimes into place.
2.2.2
EC Landfill Directive (1999/31/EC) - This directive aims to prevent, or reduce as far
as possible, negative effects on the environment from the landfilling of waste.
2.2.3
EC Regulation Shipments of Waste (1013/2006) - This regulation aims at
strengthening, simplifying and specifying the procedures for controlling waste
shipments to improve environmental protection.
2.2.4
EC Directive on the Incineration on Waste (2000/76/EC) - This aims to limit the
risks that waste incineration poses to the environment and human health. The Waste
Incineration Directive is implemented through Environmental Permitting Regulations
in England and Wales.
2.2.5
EC Directive on Integrated Pollution Prevention Control (86/61/EC) - This
Directive encourages minimising pollution from various industrial sources throughout
the EU. Operators of industrial installations undertaking activities covered by Annex I
of the IPPC Directive are required to obtain an environmental permit from the
authorities in the EU countries.
2.3
National Policy and Legislation
2.3.1
The EA and local authorities are responsible for the enforcement of waste
management controls in England and Wales, while the Department for Environment,
Food and Rural Affairs (Defra) is responsible for recycling policy and waste
regulations. Relevant UK and National waste legislation is outlined below:
a) Overarching Strategies
2.3.2
The Waste Strategy for England 2007 - This national strategy for waste sets out the
government’s views on waste management in England. The strategy commits to
setting new national targets for the reduction of household waste through recycling
and composting by at least 40% by 2010, 45% by 2015 and 50% by 2020, in
comparison to 2000 levels. In addition, new national targets are expected for the
reduction of commercial/industrial waste going to landfill; a 20% reduction in material
going to landfill by 2010 compared to 2004. Notably, this project aims to achieve a
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rate of <10% of earthworks, construction and demolition waste going to landfill (i.e.
non-treatable hazardous waste). Key objectives were stated as follows:
• decoupling waste growth from economic growth with more emphasis on waste
prevention and re-use;
• meeting and exceeding the Landfill Directive diversion targets for biodegradable
municipal waste;
• increasing diversion from landfill and securing better integration of treatment for
municipal and non-municipal waste;
• securing the investment in infrastructure needed to divert waste from landfill and
for the management of hazardous waste; and
• getting the most environmental benefit from that investment, through increased
recycling of resources and recovery of energy from residential waste using a mix
of technologies.
2.3.3
Strategy for Sustainable Construction 2008 - The Strategy for Sustainable
Construction aims to deliver the policies set out in the UK’s Sustainable Development
Strategy. It is a joint industry and government initiative, and is intended to promote
leadership and behavioural change, as well as delivering benefits to both the
construction industry and the wider economy. The strategy aims to reduce
construction, demolition and excavation waste to landfill by 50%, by 2012, compared
to 2008 levels. As previously mentioned, this project aims to achieve a rate of <10%
of earthworks, construction and demolition waste going to landfill.
b) Acts
2.3.4
The Environmental Protection Act 1990 - This Act addresses areas of significant
environmental concern including waste disposal. Waste Management issues are
considered under Part II of the EPA. Controlled waste includes commercial,
industrial (including agricultural waste from 2006) and household waste. Under the
Act, the deposition of waste to land without a licence or breaching licence is an
offence. The Act is also designed to prevent environmental pollution or harm to
human health by prohibiting treatment, storage and disposal of controlled wastes
without a licence or in breach of a licence
2.3.5
Waste and Emissions Trading Act 2003 - The Act implements a commitment to
introduce tradable allowances for Local Authorities to restrict the amount of
biodegradable municipal waste sent to landfill.
c) Regulations
2.3.6
The Waste (England and Wales) Regulations 2011 (2011/988) - These regulations
will require businesses to confirm that they have applied the waste management
hierarchy when transferring waste, and include a declaration on their waste transfer
note or consignment note.
2.3.7
Environmental Permitting (England and Wales) Regulations 2010 (2010/675) These regulations introduce a new streamlined system of environmental permitting in
England and Wales for certain installations, waste operations and mobile plants.
Activities under these regimes will be covered by a single form of environmental
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permit governed by one set of regulations. This provides a system for environmental
permits and exemptions for industrial activities, mobile plant, waste operations,
mining waste operations, water discharge activities, groundwater activities and
radioactive substances. It also sets out the powers, functions and duties of the
regulators.
Notably, the requirements of the Landfill Directive and Waste
Management Licensing are applied under these regulations.
2.3.8
Controlled Waste (Registration of Carriers and Seizure of Vehicles) Regulations
1991 (SI 1991/1624) introduce a registration system for carriers of controlled waste,
whereby all waste material to be transported off-site must be disposed of by
registered waste carriers, using vehicles licensed for the transport of waste materials
and taken to an appropriately licensed waste management facility. Furthermore, the
Control of Pollution (Amendment) Act 1989 requires carriers of controlled waste to
register with the EA and outlines the penalties (including seizure and disposal) for
vehicles shown to have been used for illegal waste disposal, and the Controlled
Waste Regulations 1992 (SI 1992/588) defines household, industrial and
commercial waste for waste management licensing purposes. Notably, these
regulations are currently under review by the Government.
2.3.9
The above policies link closely with the Environmental Protection (Duty of Care)
Regulations 1991 (SI 1991/2839), whereby any organisation disposing of waste
should be able to account for all of its waste and demonstrate that it was done
legally.
2.3.10
The Site Waste Management Plans Regulations 2011 aim to make the
construction industry more sustainable by ensuring that those responsible for
development projects are aware of the waste being produced, so that it can be
reduced. These regulations make it an offence to fail to prepare and implement a
site waste management plan (SWMP) for certain construction projects that have an
estimated cost of more than £300,000 (excluding VAT). Additional requirements are
described in the Schedule for projects over £500,000.
2.3.11
New definitions for hazardous waste and non-hazardous waste are given by the
Hazardous Waste (England and Wales) Regulations 2005 (SI 2005/894). Overall,
the regulations aim to track and control hazardous waste movements.
A
consignment note is required prior to the removal of any waste. Notably, a waste
producer who produces over 500kg of hazardous waste a year must notify the EA.
2.3.12
Transfrontier Shipment of Waste (Amendment) Regulations 2007 (SI 2007/1711)
– These regulations set out rules for shipping waste, including importing and
exporting to and from countries within the EC and outside the EU.
2.3.13
Contaminated Land (England) Regulations 2006 (SI 2006/1380) – These
regulations set out provisions relating to the identification and remediation of
contaminated land. It also determines sites which require regulation as ‘special sites’
and adds land contaminated by radioactive substances to this classification.
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d) National Planning Policy
2.3.14
Planning Policy Statement 10 (PPS10): Planning for Sustainable Waste
Management – PPS10 forms part of the national waste management plan for the
UK. The main aim of the policies is to protect human health and the environment by
producing less waste and by using it as a resource wherever possible. PPS10 sets
out the key planning objectives for waste planning authorities. In summary, they
should prepare and deliver planning strategies that:
• help deliver sustainable development through driving waste management up the
waste hierarchy, addressing waste as a resource and looking to disposal as the
last option;
• provide a framework in which communities take more responsibility for their own
waste, and enable sufficient and timely provision of waste management facilities
to meet the needs of their communities;
• help implement the national waste strategy, and supporting targets, are consistent
with obligations required under European legislation and support and complement
other guidance and legal controls;
• help secure the recovery or disposal of waste without harming the environment,
and enable waste to be disposed of in one of the nearest appropriate installations;
• reflect the concerns and interests of communities, the needs of waste collection
authorities, waste disposal authorities and business, and encourage
competitiveness;
• protect green belts but recognise the particular needs of some types of waste
management facilities when defining detailed green belt boundaries; and
• ensure the design and layout of new development supports sustainable waste
management.
e) Producer Responsibility
2.3.15
The Environment Act 1995 (Waste and Producer Responsibility, S92/S93-99) This Act requires provision of appropriate waste disposal technologies and the
prevention or reduction of waste through re-use, recycling and the use of waste as an
energy source.
2.3.16
The Producer Responsibility Obligations (Packaging Waste) Regulations 2007
(S1 2007/871) - These regulations revoke and replace the Producer Responsibility
Obligations (Packaging Waste) Regulations 2005, adding a new key definition for
small producers (a producer that has a turnover of between £2-5 million). The
regulations only apply to businesses that handle more than 50 tonnes of
packaging/packaging materials a year.
A producer may demonstrate their
compliance with the regulations by obtaining Packaging Waste Recovery Notes and /
or Packaging Waste Export Recovery Notes.
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f) Waste Streams
2.3.17
The Waste Electrical and Electronic Equipment (WEEE) Regulations 2006 (SI
2006/3289) - The regulations aim to reduce the volume of WEEE waste being taken
to Landfill sites by allowing separate collection, recovery, treatment, recycling and
safe disposal of the waste. Producers of WEEE responsible for financing the
management of WEEE from products placed on the market before 13th August 2005
and by 15th March 2007 were required to join schemes which will be responsible for
the financing and ensuring WEEE is treated at an authorised facility. The producers
and distributors of WEEE are also required to make sure household WEEE products
can be returned free of charge and treated in an appropriate way.
2.3.18
Waste Batteries and Accumulators Regulations 2009 (SI 2009/1890) - These
regulations set out requirements for waste battery collection, treatment, recycling and
disposal for all battery types.
2.3.19
Control of Pollution (Oil Storage) (England) Regulations 2001 (SI 2005/2954) These regulations impose general requirements for preventing the pollution of
controlled waters from oil storage, in particular from fixed tanks or mobile bowsers.
2.4
Regional Policy and Legislation
a) Regional Waste Strategy
2.4.1
The development falls within the south-west region of England and therefore The
Regional Waste Strategy for the South West ‘From Rubbish to Resource’ (20042020) applies. This is a non-statutory Regional Waste Strategy which aims to ensure
that by the year 2020 over 45% of waste is recycled and re-used and less than 20%
of waste produced in the region will be landfilled. One of the key areas for action is
to adopt the waste hierarchy to reduce the amount of waste being produced, before
considering re-use, recycling, recovery or disposal. The strategy’s policies and
actions address local authorities, the waste industry, non-governmental organisations
and community groups as they are key partners to deliver the strategy.
b) Regional Planning Policy
2.4.2
The Government's revocation of regional strategies was quashed in the High Court
on 10 November 2010. However, on that same date the Government reiterated in a
letter to Chief Planners its intention to revoke regional strategies through the
Localism Bill. This letter was also challenged but, on 7 February 2011, the High
Court held that the Government's advice to local authorities that the proposed
revocation of regional strategies was to be regarded as a material consideration in
their planning development control decisions should stand. The decision of the High
Court was upheld by the Court of Appeal on 27 May 2011. Therefore, the regional
strategies remain in place but in the case of development control decisions it is for
planning decision makers to decide on the weight to attach to the strategies.
Consequently, the following policies are potentially relevant:
2.4.3
Regional Planning Guidance 10 for the South West 2001 – 2016 (RPG10) (2001)
states that the Government’s aim is that plans and decisions on waste management
should choose the Best Practicable Environmental Option (BPEO) that will be based
15
on three considerations: the waste hierarchy; the proximity principle; and regional
self-sufficiency.
2.4.4
The Draft Revised Regional Spatial Strategy (RSS) for the South West
Incorporating the Secretary of State’s Proposed Changes 2008 – 2026 (July
2008) sets out regional policies in relation to: the provision of waste sites; waste
facilities and the waste hierarchy; hazardous waste; and controlling, reusing and
recycling waste in development.
2.4.5
The Somerset & Exmoor National Park Joint Structure Plan Review 1991-2011
(2000) (relevant policies ‘saved’ from 27 September 2007) provides a
comprehensive strategic land use framework for waste management. It also explains
that Somerset County Council will prepare a Waste Local Plan to provide a detailed
framework for the management of waste in Somerset.
2.5
Local Policy
a) Local Waste Policy
2.5.1
SCC is responsible for ensuring that waste infrastructure requirements are planned
and appropriate for the area.
2.5.2
The Somerset Waste Local Plan (2001-2011) (adopted in February 2005) sets out
the broad land use framework for future waste management in Somerset. It covers
all forms of waste including household, commercial, industrial and construction
waste. The plan states that the most significant implication is the amount of waste
disposed of to landfill will have to be reduced in order to meet government disposal
targets. In addition, most waste sent to landfill will require pre-treatment. The plan
has a number of policies which provide commitment to sustainable waste
management, including the waste hierarchy and the proximity principle, whereby
waste is managed close to its sources of generation.
2.5.3
The emerging Waste Core Strategy will set out SCC’s approach to waste
management planning in Somerset until 2028. Once adopted, it will replace the
Somerset Waste Local Plan. The ‘Waste Planning: Issues and Options (II)’
consultation commenced on 16 March 2011 and concluded on 11 May 2011. EDF
Energy has submitted representations in response to the consultation.
b) Local Planning Policy
2.5.4
The West Somerset Local Plan (2006) (relevant policies ‘saved’ from 17 April 2009)
does not set out any specific policies in relation to waste. The West Somerset
District Local Development Framework Core Strategy (Options Paper) (January
2010) is at a preliminary stage of preparation and, once adopted, will replace the
Local Plan and form part of the Development Plan for West Somerset. The Options
Paper does not include any emerging policies relating to waste.
2.5.5
The Sedgemoor District Local Plan 1991-2011 (2004) (relevant policies ‘saved’
from 27 September 2007) aims to minimise waste. The local plan explains that the
Somerset Waste Local Plan forms part of the Development Plan and needs to be
considered in determining planning applications.
16
2.5.6
The Sedgemoor District Local Development Framework Core Strategy
(Proposed Submission) (September 2010) will, once adopted, replace the Local
Plan and form part of the Development Plan for Sedgemoor. The Core Strategy
(Proposed Submission) sets out emerging policies that seek to minimise waste and
maximise recycling.
2.5.7
EDF Energy submitted representations objecting to other parts of the Core Strategy
Proposed Submission; namely, Chapter 4 ‘Major Infrastructure Projects’ (and
policies MIP1, MIP2 and MIP3 contained in that chapter) and those sections relating
to housing and Hinkley Point. EDF Energy also participated at the relevant
Examination in Public (EiP) hearings.
2.5.8
At the close of the hearing sessions on 26 May 2011, the Inspector agreed with
Sedgemoor District Council (SDC) and EDF Energy that, in an attempt to reach
agreement on the disputed Chapter 4, SDC would re-draft Chapter 4 and
EDF Energy would have the opportunity to respond. The position of both parties in
relation to the re-drafted Chapter 4 was set out in correspondence between SDC,
EDF Energy and the Inspector. As a result of the correspondence invited by the
Inspector, SDC has agreed to further changes to the Core Strategy which make clear
that the Core Strategy does not set any policies, tests or requirements for the IPC to
apply in deciding whether any element of the development comprised in an
application for development consent is acceptable, nor the basis on which any such
application should be approved. Instead, the chapter is to set out those matters
which SDC may take into account in preparing its LIR for the Hinkley Point C DCO
application. These, therefore, represent aspirations of the Council, rather than formal
planning policy for the Hinkley Point C DCO application. This was confirmed in the
Inspector’s binding report of the EiP, published on 27 September 2011. It is
expected that the Core Strategy will be adopted in October 2011.
2.5.9
West Somerset Council (WSC) and SDC have jointly prepared the Consultation Draft
version of the Hinkley Point C Project Supplementary Planning Document
(February 2011) (the draft HPC SPD) in relation to the HPC Project. Public
consultation on the draft HPC SPD commenced on 1 March 2011 and concluded on
12 April 2011. The draft HPC SPD sets out that, in line with national requirements, a
SWMP should be provided for all sites to reduce carbon emissions associated
with waste.
2.5.10
EDF Energy has submitted representations which object to the draft HPC SPD.
Following the Sedgemoor Core Strategy EiP and subsequent correspondence with
the Inspector, it is clear that the SPD cannot set tests, policies or requirements for
the IPC to apply to the consideration of the Hinkley Point C Project. If the Councils
continue with the SPD preparation, its text will need to be considered in this light and
it could not carry any significant weight in the determination of the DCO application.
2.6
Guidance
2.6.1
Waste & Resources Action Programme (WRAP) – This programme aims to help
the UK government to meet national and international commitments and to support
resource efficiency in the UK. This is achieved by helping businesses and individuals
within the UK to benefit from reducing waste, develop sustainable products and use
resources in an efficient way.
17
2.6.2
Contaminated Land Applications in Real Environments (CL:AIRE) is an
independent, non-profit organisation that aims to encourage the sustainable
remediation of contaminated land and groundwater throughout the UK, for effective
social and economic use. This is achieved by increasing awareness and confidence
in practical, sustainable remedial solutions.
2.6.3
Defra has published guidance document Government Review of Waste Policy in
England 2011. This review includes actions and commitments for reducing waste,
with a steer towards a zero waste economy. Of note, the review states that Defra
plan to expand the capacity to treat construction and demolition waste through
improved information on waste supply and composition, and developing further the
supply chains for recyclates and solid recovered fuel.
2.7
EDF Energy Vision for Waste Management
2.7.1
EDF Energy’s waste management vision is ‘to safely and consistently manage the
production, treatment and disposal of waste in compliance with all relevant waste
legislation, taking into account external and internal policy drivers, environmental and
waste management principles, best practice and using innovative technologies where
practicable and applicable to actively minimise impact on the environment and to
protect workers and the public’.
2.7.2
The delivery of the vision will be ensured through the implementation of integrated
waste management principles and detailed site waste management planning, which
in turn will be underpinned by appropriate operating procedures and instructions
throughout the supply chain.
18
3.
THE PROPOSED DEVELOPMENT
3.1
Construction Scope for the HPC Project
3.1.1
The key developments are listed below and Figure 3.1 shows their location.
a) HPC Development Site
• HPC Power Station.
• Temporary Jetty.
• HPC Accommodation Campus.
b) Off-Site Associated Developments
• Refurbishment and Extension of Combwich Wharf and Freight Laydown Facility.
• Bridgwater A Accommodation Campus.
• Bridgwater C Accommodation Campus.
• Cannington Park and Ride Facility.
• Cannington Bypass.
• Junction 23 – Park and Ride, Freight Management and Courier Consolidation
Facilities and Induction Centre.
• Junction 24 – Park and Ride Facility, Freight Management Facility, Temporary
Consolidation Facility for Postal/Courier Deliveries and Temporary Induction
Centre.
• Williton Park and Ride Facility.
3.1.2
Outline of proposed developments and the activities that will produce waste at each
of these sites is given in the sections below.
19
Figure 3.1: Location of Proposed Developments
20
3.2
Construction Scope for the HPC Development Site
i. HPC Power Station
3.2.1
HPC will comprise a range of buildings above ground, sea bed and sub-surface
structures and related facilities including:
• two Nuclear Islands each comprising a UK EPR reactor and other associated
buildings;
• two Conventional Islands, each including a Turbine Hall, located adjacent to the
Nuclear Islands;
• a Cooling Water Pumphouse for each UK EPR reactor unit with related
infrastructure;
• sea bed cooling water intakes and outfall structures together with tunnels
connecting these to the cooling water pumphouses and turbine halls;
• fuel and waste management facilities, transmission infrastructure including the
National Grid 400kV substation, staff facilities, administration, storage facilities
and other plant;
• a Public Information Centre (PIC) to provide education and public facilities;
• a Sea Wall incorporating a public footpath; and
• access and parking facilities for workers, visitors and deliveries for the main
nuclear plant and the national Grid 400kV substation.
3.2.2
Some reversible site preparation works will be carried out at the HPC development
site in advance of the DCO being granted pursuant to EDF Energy’s site preparation
planning permission. Civil works are proposed to commence in 2013 and continue
until 2019. EDF Energy’s target for the first nuclear reactor becoming operational is
in 2019, with the second reactor in full power by mid-2020. The power station is
proposed to be operational for approximately 60 years.
3.2.3
The proposed earthworks operations to re-profile the site will not produce any surplus
material requiring removal from site, with the exception of a small amount of
contaminated soil to be remediated as part of the enabling works. At present, there
are three derelict barns on-site which require demolition, and thus will produce a
small quantity of demolition waste. Waste would generally be produced during the
construction phase from off-cuts from fitting and spent materials. During the
operational phase, waste would be produced from maintenance activities and
workers would produce some general waste. Predominantly demolition-type waste
would be produced during the decommissioning phase.
ii. Temporary Jetty
3.2.4
It is proposed for a temporary jetty to be constructed, whereby some of the material
required for construction of the HPC development site will be delivered. It is
anticipated that construction would commence in early 2012 for approximately 15
months. The temporary jetty would be removed following completion of the HPC
construction phase.
21
3.2.5
It has been assumed that all of the infrastructure would be removed and the land
would be restored as part of the wider HPC legacy strategy.
3.2.6
Wastes will be generated from the construction and post-operational phases of the
proposed development. Operational phase wastes would be negligible.
iii. HPC Accommodation Campus
3.2.7
The HPC Accommodation Campus consists of:
• an accommodation campus including living space for 510 occupants within 15
accommodation buildings; two 5-a-side football pitches and associated toilet
facilities; 319 car parking spaces and motorcycle and bicycle parking spaces; an
amenity building providing amongst other things administration, canteen, laundry,
gymnasium and recreational facilities; and bus drop-off point; internal access
roads;
• access off the C182 (Wick Moor Drove);
• landscaping within the site, including tree planting around the perimeter of the
site; and
• other ancillary development including signage, fencing, lighting, CCTV and
utilities.
3.2.8
The proposed development would be used by EDF Energy during the construction
phase of the HPC power station to accommodate non-home-based workers for
approximately six years.
3.2.9
It is anticipated that construction would commence in Quarter 2 2013 for
approximately 15 months. It is estimated that the accommodation campus would be
operated by EDF Energy between Quarter 3 2014 and Quarter 1 2021, after which its
post-operational phase would commence.
3.2.10
It has been assumed that all of the infrastructure would be removed and the land
would be restored as part of the wider HPC legacy strategy.
3.2.11
Waste will be generated from the construction, operational and post-operational
phases of the HPC Accommodation Campus.
3.3
Construction Scope for the Off-Site Associated Developments
a) Refurbishment and Extension of Combwich Wharf and Freight Laydown
Facility
3.3.1
The Proposed Development Consists of:
• refurbishment and extension of Combwich Wharf to accommodate deliveries by
water of Abnormal Indivisible Loads (AILs) and bulky construction goods
associated with the construction of HPC power station;
• provision of a new freight laydown facility in areas to the south of Combwich
village for the handling and storage of AILs and construction materials before they
are transported to the HPC development site;
22
• improvement to the existing EDF Energy owned Combwich Wharf access road;
and
• minor alteration to the C182 at its junction with the Combwich Wharf access road.
3.3.2
This proposed development would be used by EDF Energy during the construction
phase of HPC power station and will continue to be used thereafter on an occasional
basis for the delivery of AILs during the operational phase of HPC. The laydown
would be restored to agricultural land. See the Post-Operational Strategy appended
to the Planning Statement for details.
3.3.3
It is anticipated that construction of Combwich Wharf would commence in Quarter 1
2013 for approximately 12 months. It will be operated by EDF Energy from Quarter 1
2014. Construction of the Combwich Freight Laydown Facility is anticipated to
commence in Quarter 1 2014 for approximately 12 months, it would be operated by
EDF Energy from Quarter 1 2015 to Quarter 3 2021, after which its post-operational
phase would commence.
3.3.4
Waste will be generated from the refurbishment and extension of Combwich Wharf
during the demolition, earthworks and construction phases of the development.
Operational waste would be negligible. With regards to the Freight Laydown Facility,
waste will be produced from its construction, operational and post-operational
phases. Notably, earthworks materials from the site preparation works would be
stored on-site for re-use during the post-operational phase of the proposed
development.
b) Bridgwater A Accommodation Campus
3.3.5
The Bridgwater A accommodation Campus Consists of:
• an accommodation campus, including living space for 850 occupants within 25
accommodation buildings; three football pitches (one full size and two 5-a-side
pitches) and associated changing facilities; 543 car parking spaces and bus,
motorcycle and bicycle parking spaces; an amenity building providing amongst
other things administration, canteen, laundry, gymnasium and recreational
facilities; and internal access roads;
• access of the A39 (Bath Road), changes to the road marking along the A39 (Bath
Road) and the stopping up of Fredrick Road;
• a new drainage rhyne;
• landscaping within the site, including tree planting around the perimeter of the
site; and
• other ancillary development, including signage, fencing, lighting, CCTV and
utilities.
3.3.6
phase of HPC power station to accommodate non-home-based workers for
approximately six and a half years.
3.3.7
It is anticipated that construction would commence in Quarter 1 2013. The proposed
development is likely to be constructed in a phased basis, with construction generally
23
proceeding south to north. First occupation is expected to be in Quarter 3 2014 and
use of the proposed development is anticipated to cease in Quarter 1 2021, after
which its post-operational phase would commence.
3.3.8
It has been assumed that some infrastructure would be removed and some retained,
some of which would not be confirmed until closer to the time EDF Energy would
cease use of the site. See the Post-Operational Strategy appended to the Planning
Statement for details.
3.3.9
Waste would be generated from the demolition/earthworks (including remediation)/
construction, operational and post-operational phases of the proposed development.
c) Bridgwater C Accommodation Campus
3.3.10
The Bridgwater C accommodation campus consists of:
• an accommodation campus, living space for 150 occupants within four
accommodation buildings; an all weather 5-a-side football pitch; 66 car parking
spaces, and motorcycle and bicycle spaces; a temporary canteen building for a
period of approximately six month until the facilities at Bridgwater A
accommodation campus become operational; and internal access roads;
• alterations to the existing gyratory on the A39 (Bath Road), including provision of
two bus shelters and changes to the road markings;
• access road off College Way;
• landscaping within the site, including tree planting along College Way; and
utilities.
3.3.11
phase of the HPC power station to accommodate non-home-based workers for
approximately seven years. It is anticipated that construction of the proposed
development would commence in Quarter 1 2013 for approximately 12 months. It is
estimated that the accommodation campus would be operated by EDF Energy
between Quarter 1 2014 and Quarter 1 2021, after which the facility would no longer
be required by EDF Energy.
3.3.12
It is assumed that the majority of infrastructure would be retained. See the Post
Operational Strategy appended to the Planning Statement for details.
3.3.13
Waste would be generated during the earthworks (including remediation),
construction and operational phases of the proposed development.
d) Cannington Park and Ride Facility
3.3.14
Cannington Park and Ride Facility consists of:
• a park and ride facility, including two separate parking areas for the parking of
workforce (132 car and minibus/van spaces and including 4 accessible bays) and
visitors (120 car and minibus/van spaces, including 3 accessible bays) including a
24
bus waiting area and some ancillary structures including bus shelters and
security/welfare facilities;
• a new access onto the A39 via a new left turn entry and exit, junction;
• widening of the A39 and provision of footway between site access and A39 Main
Road eastern roundabout;
• landscaping, screen planting and the provision of earth bunds for visual mitigation
and spoil storage;
• surface water drainage infrastructure (including a detention pond); and
utilities.
3.3.15
phase of the HPC power station to transport and manage the flow of some of the
construction workforce to and from the HPC construction site for approximately eight
years.
3.3.16
It is anticipated that construction of the proposed development would commence in
Quarter 1 2013 for approximately 11 months. It is anticipated that the park and ride
would be operated by EDF Energy between Quarter 4 2013 and Quarter 4 2021,
after which its post-operational phase would commence.
3.3.17
It has been assumed that the site will be restored to its current agricultural use. See
the Post-Operational Strategy appended to the Planning Statement for details.
3.3.18
Waste would be generated during the earthworks/construction, operational and postoperational phases of the proposed development.
e) Cannington Bypass
3.3.19
Cannington Bypass consists of:
• a 1.5km single carriageway road, with a design speed of 40 miles per hour (mph)
(70 kilometres per hour (kmph)), 7.3m wide with a minimum 2.5m wide verge on
the west side and a 3.5m wide cycle/footway on the eastern side;
• a new roundabout to join the C182 (Rodway) and alterations to the alignment of
the existing side roads and accesses including the C182 (Rodway), Chad’s Hill,
Withiel Drive and Sandy Lane; and field accesses;
• environmental mitigation, including earth binds, screen planting and an ecological
underpass;
• drainage including culverts and balancing ponds; and
• associated signage, crossing, services and lighting.
3.3.20
and operational phase of the HPC Project and would be adopted as a public highway
for wider use by local road users.
25
3.3.21
Construction of the proposed development would commence in Quarter 1 2013 for
approximately 25 months. It is anticipated that the proposed development would be
available from Quarter 4 2014 to support the construction and operational phases of
the HPC power station. Following completion of the construction phase, at a time to
be agreed with the highways authority, part of the proposed development would be
adopted and thereafter maintained by the highways authority, with the remainder of
the land returned to existing landowners.
3.3.22
Waste would be generated during the earthworks and construction phases of the
proposed development. Operational phase wastes would be negligible.
f) Junction 23 Park and Ride Facility, Freight Management Facility,
Consolidation Facility for Postal/Courier Deliveries and Induction Centre
3.3.23
The Junction 23 site consists of:
• a park and ride facility, including hardstanding for vehicle parking for 1,300 cars,
minibuses and vans, and associated motorcycle, bicycle and bus parking spaces;
bus terminus; and ancillary structures, including bus shelters and amenity/welfare
and security buildings;
• a freight management facility, including hardstanding for vehicle parking for 85
heavy goods vehicles (HGVs) and other vehicles; a freight checking area;
associated
car
parking
and
ancillary
structures,
including
an
administration/amenity and security building;
• a consolidation facility for postal/courier deliveries comprising a consolidation
facility building with associated parking area;
• a worker induction centre comprising induction space and welfare facilities; and
120 car parking spaces and motorcycle and bicycle spaces;
• new site access and site access improvements comprising realignment of the
highway arrangements off the Dunball roundabout;
•
internal roads and a roundabout;
• works to River Parrett flood defences;
• landscaping, screen planting, ecological mitigation area and the provision of earth
bunds for visual mitigation and spoil storage;
• surface water drainage infrastructure (including detention pond); and
• other ancillary development, including fencing, lighting, CCTV, signage and
utilities.
3.3.24
phase of the HPC power station for approximately six and a half years.
3.3.25
Quarter 3 2013 for approximately 12 months. It is estimated that the proposed
development would be operated by EDF Energy between Quarter 3 2014 and
Quarter 4 2020, after which its post-operational phase would commence.
26
3.3.26
Future use of the site at this stage has not been fixed, however, for this assessment
it is assumed that the site would be restored to its current agricultural use. Additional
landscaping, drainage and ecological mitigation habitats associated with EDF
Energy’s use of the site would however be left in place. See the Post-Operational
Strategy appended to the Planning Statement for details.
3.3.27
g) Junction 24 Park and Ride Facility, Freight Management Facility, Temporary
Consolidation Facility for Postal/Courier Deliveries and Temporary
Induction Centre.
3.3.28
The Junction 24 site consists of:
• a park and ride facility, including parking within existing warehouse building and
externally for 1,300 cars, minibuses and vans, and associated motorcycle, bicycle
and bus parking spaces; bus terminus; and ancillary structures, including bus
shelters and amenity/welfare and security areas/buildings;
• a freight management facility, including an area for vehicle parking for 140 heavy
goods vehicles (HGVs), reducing to 55 spaces once the facilities at Junction 23
become available; a freight checking area; and ancillary structures, including
administration/amenity and security areas/buildings;
• a temporary consolidation facility for postal/courier deliveries comprising a
consolidation facility building with associated parking area, until the facilities at
Junction 23 become available;
• a temporary worker induction centre located within existing tray wash and vehicle
maintenance building comprising induction space and welfare facilities; and 75 car
parking spaces and motorcycle and bicycle spaces, until the facilities at Junction
23 become available;
• internal roads;
• landscaping; and
• other ancillary development, including fencing, lighting, CCTV, signage and
utilities.
3.3.29
phase of the (HPC) power station for approximately nine years.
3.3.30
Quarter 1 2013. It is estimated that the proposed development would be fully
operational by Quarter 3 2013 with the facilities being introduced in phases from
Quarter 1 2013 onwards. EDF Energy would operate the site until Quarter 1 2022,
3.3.31
It has been assumed that any temporary built works carried out in relation to the
operation of the site as a park and ride facility and freight management facility would
be removed and appropriate measures would be carried out to allow the site to be
available for storage/distribution purposes. See the Post-Operational Strategy
appended to the Planning Statement for details.
27
3.3.32
h) Williton Park and Ride Facility
3.3.33
Williton Park and Ride Facility consists of:
• a park and ride facility, including a 160 space car park for workers’ vehicles, a bus
waiting area and some ancillary structures including bus shelters and
security/welfare facilities, accessed from the existing lorry park access from the
B3190;
• landscaping and supplementary screen planting for visual mitigation; and
utilities.
3.3.34
phase of the HPC power station to transport and manage the flow of some of the
construction workforce to and from the HPC construction site for approximately seven
years.
3.3.35
Quarter 1 2013 for approximately nine months. It is anticipated that the park and ride
would be operated by EDF Energy between Quarter 4 2013 and Quarter 4 2020,
3.3.36
It has been assumed that the site would be restored to its current use as a lorry park.
See the Post-Operational Strategy appended to the Planning Statement for details.
3.3.37
Waste would be generated during the earthworks, construction, operational and postoperational phases of the proposed development.
28
4.
ANALYSIS OF EARTHWORKS AND
CONSTRUCTION PHASE WASTES
4.1
Introduction
4.1.1
This chapter aims to determine the material types and waste volumes that will arise
from the earthworks and construction phase of the HPC development site and the
off-site associated developments.
4.1.2
The main type of earthworks material/waste would be excavated soils as part of site
preparation activities. Typically, this would include:
• vegetation;
• topsoil;
• subsoil;
• natural ground; and
• made ground.
4.1.3
Typically, earthworks and construction waste falls into three classifications inert, nonhazardous and hazardous wastes.
4.1.4
At the HPC development site and most of the off-site associated developments, the
majority of excavated materials created to facilitate construction would be retained
on-site for re-use as backfill and landscaping during the post-operational phase. This
is sustainable and prevents/minimises waste production.
Consequently, this
significantly reduces the amount of material to be classified as waste, which would
require removal from site for re-use, recycling, recovery or disposal.
4.1.5
Contributing factors to construction waste include over-procurement, a high finishing
standard requirement and a lack of space for storage of unused materials.
Furthermore, poor segregation of waste can lead to a reduction in re-use and
recycling rates. Additionally, Bridgwater A and C sites are subject to ground
contamination, and as a result, there are likely to be some remediation wastes.
4.1.6
On the basis that only limited demolition (e.g. from the remaining out-buildings) and
ground works are required, waste associated with the construction phase will be
directly related to the actions of the construction contractor.
4.1.7
Nuclear power stations require a higher quality finish than standard developments
(e.g. to combat problems such as salt corrosion), therefore most construction waste
at the HPC power station will be generated through off-cuts from fitting materials and
spent materials. However, delivery of AILs will assist in reducing such wastes, as
materials will be pre-constructed. Waste will also be produced from the packaging of
construction materials and the operation of maintenance facilities.
29
4.1.8
The construction phase of the HPC development site and the off-site associated
developments is likely to generate the following main waste streams:
•
•
•
•
•
•
•
•
•
4.1.9
In addition, the following waste materials will be produced, but in smaller quantities:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
4.1.10
asphalt;
brick;
cardboard;
ceramic/bricks;
general waste;
glass;
hazardous;
insulation;
masonry;
metals;
packaging waste;
paint cans;
plaster;
plastics;
roof materials;
scrap metal;
soils/excavated waste;
timber;
vinyl; and
wiring.
General waste would also be produced during the construction phase from the
construction workers. Typical wastes would include:
•
•
•
•
•
30
aggregate;
cement;
concrete;
formwork;
prefabricated parts;
reinforcing steel;
sand;
pipe work; and
structural steelwork.
cardboard;
food;
fluorescent bulbs;
glass;
paper;
•
•
•
•
plastic;
printer cartridges;
sewage; and
wood.
4.1.11
Hazardous wastes would include some remedial wastes (e.g. the Bridgwater A and C
sites), chemicals and minor oil and hydrocarbon spillages. Only small volumes of
hazardous waste are anticipated.
4.1.12
Table 4.1 below outlines the predicted waste volumes during the earthworks and
construction phase of the HPC development site and the off-site associated
developments. Table 4.1 also provides a breakdown of the overall waste in terms of
type (e.g. inert, non-hazardous and hazardous). The table also includes estimated
waste volumes for the remediation of the Bridgwater A and C sites. However,
updated figures will be provided upon completion of the site investigation and risk
assessments. The remediation strategies will aim to minimise waste disposal by
encouraging on-site treatment and re-use where economically practicable. Where
volumes have been provided in cubic metres, these have been converted to tonnes
assuming a density of 2.0 tonnes per m3. This conversion has been based upon a
typical density of sand and gravel being 1.8 tonnes per m3, plus a conservative
allowance for bulking of material, resulting in 2.0 tonnes per m3.
Table 4.1: Total Earthworks/Construction Phase Waste Quantity Estimates
Inert
NonHazardous
Hazardous
150,000
68,000
2,000
220,000
242,000
1,767
471
118
2,356
2,828
23,972
6,392
1,589
31,953
38,344
2,103
560
140
2,803
3,364
28,775
8,800
12,062
49,637
59,564
Bridgwater C
accommodation campus
(including any remediation
waste)
1,592
608
1,766
3,966
4,760
Cannington Park and ride
2,099
560
140
2,799
3,359
40,364
10,764
2,691
53,819
64,583
Earthworks/Construction
Waste (tonnes)
TOTAL
TOTAL
(Contingency
= 10% HPC
Power
Station, 20%
AD's)
HPC Development Site
HPC power station (including
the temporary jetty)
HPC accommodation
campus
Off-Site Associated Development Sites
Combwich Wharf
refurbishment and extension
Combwich Wharf freight
laydown facility
Bridgwater A accommodation
campus (including
remediation waste)
Cannington bypass
31
Earthworks/Construction
Waste (tonnes)
Inert
NonHazardous
Hazardous
TOTAL
TOTAL
(Contingency
= 10% HPC
Power
Station, 20%
AD's)
Junction 23
4,295
1,145
286
5,726
6,872
Junction 24
2,577
687
172
3,436
4,123
Williton park and ride
2,273
606
152
3,031
3,636
259,817
98,593
21,116
379,526
433,433
TOTAL
4.1.13
There will be some highway improvements proposed as part of the HPC Project,
however, these works are assumed to be produce only negligible waste volumes and
therefore are not considered further.
4.2
Earthworks and Construction Waste at the HPC Development Site
4.2.1
This section describes the various types and volumes of waste that will be produced
as part of the earthworks and construction phase at the HPC development site. In
addition, the proposed management of these wastes in terms of the waste hierarchy
is given.
a) HPC Power Station
4.2.2
The proposed earthworks strategy provides a cut and fill balance for excavated
material (e.g. topsoil, subsoil, rock, etc) at the HPC development site. Consequently,
it is not anticipated that excavated soils will leave the site. Topsoil and unnecessary
subsoil will be stripped and it is the intention that these materials will be re-used onsite for landscaping.
4.2.3
Table 4.1 displays the total quantity of waste to be produced from the construction of
the HPC power station. Table 4.2 summarises the management of the main
construction waste streams in relation to the waste hierarchy (see Section 1). Any
vegetation that is stripped, including green matter and timber, would be recovered for
appropriate uses on-site or off-site. As outlined in paragraph 3.2.3, there are
currently three derelict barns located on-site which will require demolition. It is
intended to re-use suitable materials from the barns either on or off-site.
Table 4.2: Management of Main Waste Streams at the HPC Development Site
Earthworks
32
Prevent/Reduce
Re-Use
Recycle/Recover
• Design of earthwork
excavations and
storage methods to
prevent material being
sent off-site.
• Storage of topsoil and
subsoil on-site
pending future use,
either for
reinstatement during
the site preparation
phase or restoration
postdecommissioning.
• No surplus soils
anticipated. Cut and
fill balance.
• Recover any
vegetation stripped
either on-site (e.g.
shredding) or off-site
(e.g. anaerobic
digestor/composting.
Construction
Decommissioning
Prevent/Reduce
Re-Use
Recycle/Recover
• Careful design,
appropriate ordering
of materials and use
of best practice. For
example, careful
ordering of materials
will reduce the
amount of unwanted
material, such as
aggregate, being
brought to site.
• Design (e.g. low
cobalt steels and
optimisation of
neutron shielding) to
reduce
decommissioning
wastes.
• Sell direct to the local
market for re-use, or
send material to a
treatment centre for
later re-use in line
with the WRAP Waste
Aggregate Protocol.
This will also reduce
vehicle movements
and adheres to the
proximity principle.
market for re-use (e.g.
whole units or
fabrics/components/m
aterials), although
dependent on
changing construction
standards over time.
• Send off-site to a
Material Recycling
Facility (MRF).
MRF.
b) Temporary Jetty
4.2.4
The volumes of waste to be produced from the construction phase of the temporary
jetty are included in the figures given for the HPC power station, as displayed in
Table 4.1. The management of the various waste streams are summarised in
Table 4.3, in order of the waste hierarchy.
Table 4.3: Management of Main Waste Streams at the Temporary Jetty
Construction
Design of Buildings
Prevent/Reduce
Re-Use
Recycle/Recover
• Careful design and
of materials. This
will reduce the
amount of unwanted
material brought to
site.
• Use of best practice
techniques will
reduce the amount
of resultant waste
(e.g. off-cuts).
• Modular units will be
prefabricated,
therefore reducing
the amount of offcuts.
• Use of modular
units.
• Sell direct to the
local market for reuse or send material
to a treatment centre
for later re-use.
MRF.
local market for reuse (e.g.
fabrics/components/
materials), although
dependent on
changing
construction
MRF.
33
c) HPC Accommodation Campus
4.2.5
During the early construction phase, after the site preparation works have been
completed, the HPC Accommodation Campus will be constructed. Excavated
material, such as topsoil and subsoil would be stored on-site for re-use during
removal and restoration of the land.
4.2.6
The living accommodation is proposed to be of modular construction and therefore
will produce minimal waste, with the units likely to be prefabricated, hence reducing
construction off-cuts. This will maximise the potential for re-use following the
operational phase, with complete units, components and building fabrics suitable for
re-use/recycling following their removal from site, although this is market dependent.
A two-storey, amenity building is to be built and is likely to be of modular
construction, although this is not confirmed. However, where feasible, it is proposed
to re-use components/materials (e.g. cladding). It should be noted that EDF Energy
are to prepare a Re-use Strategy for the HPC development site and the off-site
associated developments. The volumes of waste to be produced from the
earthworks and construction phases of the HPC Accommodation Campus are
displayed in Table 4.1. Table 4.4 summarises the management of waste streams, in
terms of the waste hierarchy.
Table 4.4: Management of Main Waste Streams at the HPC Accommodation Campus
Prevent/Reduce
Re-Use
Recycle/Recover
Earthworks (to
form part of the
HPC Power
Station
earthworks
activity).
excavations and
storage methods (e.g.
purposeful bunds) to
sent off-site.
• Storage of topsoil and
subsoil on-site as
landscaped bunds.
Construction
of materials. This will
reduce the amount of
unwanted material
brought to site.
• - Use of best practice
techniques will reduce
the amount of
resultant waste (e.g.
off-cuts).
• - Modular units will be
prefabricated,
therefore reducing the
amount of off-cuts.
• Use of modular units.
market for re-use or
send material to a
later re-use.
• No surplus soil
anticipated.
• Send any stripped
vegetation to an
anaerobic digestor
plant/composting
facility.
MRF.
Design of
Buildings
34
whole units or
fabrics/components/m
aterials), although
dependent on
changing construction
MRF.
4.3
Earthworks and Construction Waste at the Off-Site Associated
Developments
4.3.1
The following sections provide further detail on the anticipated materials and waste
arisings at each of the off-site associated development sites during the earthworks
and construction phases:
a) Refurbishment and Extension of Combwich Wharf
4.3.2
As part of the refurbishment and extension works, the demolition of some redundant
features on-site would occur, resulting in general demolition type waste. Some minor
earthworks activity is anticipated. The total earthworks and construction (including
demolition) waste to be created as a result of the refurbishment and extension works
is displayed in Table 4.1. Table 4.5 summarises the management of waste streams
in order of the waste hierarchy.
Table 4.5: Management of Main Waste Streams at Combwich Wharf Refurbishment and
Extension
Prevent/Reduce
Re-Use
Recycle
Earthworks
excavations and
storage methods to
limit material being
sent off-site.
• Send surplus
earthworks material
off-site to an MRF.
Construction/
Demolition
of materials. This will
unwanted material
brought to site.
the amount of
off-cuts).
• Re-use surplus
earthworks materials
at another site e.g.
through the National
Industrial Symbiosis
Programme (NISP) or
a waste broker.
send material to a
later re-use.
MRF.
b) Combwich Wharf Freight Laydown Facility
4.3.3
It is proposed for approximately 250mm of topsoil to be stripped where the platform is
to be constructed. The topsoil will be used to form part of a flood defence bund and
noise bund.
Capping material, sub-base material, concrete and bituminous
macadam will be imported to form the site and will subsequently be removed from
site during reinstatement.
4.3.4
Modular buildings are proposed to be constructed. Consequently, materials will
generally be brought to site cut to size and partly/fully constructed. The volumes of
waste to be produced from the earthworks and construction phase of Combwich
Wharf Freight Laydown Facility are displayed in Table 4.1 and the management of
the various waste streams are summarised in Table 4.6, in order of the waste
hierarchy.
35
Table 4.6: Management of Main Waste Streams at Combwich Wharf Freight Laydown
Facility
Earthworks
Construction
Design of
Buildings
Prevent/Reduce
Re-Use
Recycle/Recover
excavations (e.g. restrict
depth of dig to 250mm)
and storage methods to
sent-off site.
appropriate ordering of
materials. This will
unwanted material
brought to site.
the amount of resultant
waste (e.g. off-cuts).
• Modular units will be
prefabricated, therefore
reducing the amount of
off-cuts.
• Use of modular
buildings.
• Stripped topsoil will be
used to cover flooding
and noise bunds.
Remaining topsoil will be
stockpiled on-site.
anticipated. Cut and
fill balance.
• Sell direct to local
market or send material
to a treatment centre for
later re-use.
MRF.
whole units or
fabrics/components/mat
erials), although
dependent on changing
construction standards
over time.
MRF.
c) Bridgwater A Accommodation Campus
4.3.5
Due to the previous use of the site as a cellophane works, a degree of ground and
groundwater remediation is likely to be required prior to commencing construction
works. Confirmation of the extent of contamination is currently being investigated
through intrusive site investigation.
4.3.6
The remedial works are to be designed to render the site as suitable for a residential
end use, which is proposed to be the likely legacy use for the site. The final details of
this remediation are currently unavailable; however, conservative estimates of the
potential remediation and demolition volumes have been incorporated into the overall
waste volumes. These estimates are based on the volume of contaminated arisings
during redevelopment of a site in north-east Bridgwater, combined with professional
judgement.
4.3.7
Where practical, contaminated soils will be treated on-site. Any grossly contaminated
soils which could not be treated on-site would require off-site removal for treatment or
disposal. As an estimate, 90% of the contaminated soils excavated are likely to be
treatable and available for re-use if economically viable, with 10% requiring removal
off-site.
36
4.3.8
As the site is located within flood zone 3A, it is proposed for site levels to be raised,
requiring material to be imported to site. The majority of waste to be removed from
site will arise from the breaking out of hardstanding and existing structures. The
accommodation and amenity building is likely to be of modular construction (although
not confirmed) and will produce minimal waste during its construction. The volumes
of waste to be produced from the earthworks and construction phases of the
Bridgwater A Accommodation Campus are displayed in Table 4.1. The management
of waste streams are displayed in Table 4.7, in order of the waste hierarchy.
Table 4.7: Management of Main Waste Streams at Bridgwater A
Prevent/Reduce
Re-Use
Recycle/Recover
Dispose
Remedial
Waste
• Remedial strategy
designed specific
to end use.
• On-site treatment
for re-use on-site.
• Off-site treatment
of soils.
Earthworks
• No surplus clean
soils anticipated.
• No surplus clean
soils anticipated.
Construction
• Careful design
and appropriate
ordering of
materials. This
will reduce the
amount of
unwanted
material brought
to site.
• Use of best
practice
techniques will
reduce the
amount of
resultant waste
(e.g. off-cuts).
• Use of modular
units which will be
prefabricated,
therefore
reducing off-cuts.
• Use of modular
units.
market or send
material to a
treatment centre
for later re-use.
vegetation to an
anaerobic
digestor
plant/composting
facility.
MRF.
• Non
treatable
soils
(<10%).
• N/A
Design of
Buildings
local market for
re-use (e.g. whole
units or
fabrics/componen
ts/materials),
although
dependent on
changing
construction
standards over
time.
MRF.
• N/A
• N/A
37
d) Bridgwater C Accommodation Campus
4.3.9
The site is an existing rugby pitch and is underlain by an infilled brick pit. As a result,
the potential for the site to be impacted by contamination has been identified.
Consequently, an intrusive ground investigation was undertaken to determine the
nature and extent of contamination at the site, whereby household waste was
recorded. In view of the site’s redevelopment to an accommodation campus, a
remediation design is currently being produced to mitigate any source-pathwayreceptor linkages which could affect future site users or the water environment. As
such, there is a potential for remediation wastes to arise, likely to involve removal of
contaminated wastes from site for treatment or disposal.
4.3.10
Due to potentially poor ground conditions as a result of infilling activities (e.g.
stability), it is proposed to pile the buildings to approximately 30 metres below ground
`level (m bgl) (with a bentonite seal in place to prevent contamination from reaching
any sensitive groundwater resources at depth) and also to pile the access roads.
This will result in some pile arisings.
4.3.11
It is proposed that site levels be raised slightly across the site. As such, material will
be imported to site. The four accommodation blocks are to comprise mixed framed
and modular construction. Due to the potential ground stability issues, it is proposed
that the buildings on-site to be constructed of lightweight steel and timber
construction, as opposed to brick. The volumes of waste to be produced from the
earthworks and construction phases of the Bridgwater C site are displayed in
Table 4.1. The management of the waste streams is shown in Table 4.8, in order of
the waste hierarchy.
Table 4.8: Management of Main Waste Streams at Bridgwater C
38
Prevent/Reduce
Re-Use
Recycle/Recover
Dispose
Remedial
Waste
• Remedial strategy
designed specific to
end use
• Off-site
treatment.
Earthworks
excavations and
storage methods to
prevent material
being sent-off site.
• On-site
treatment for
re-use onsite.
• No surplus
soils
anticipated.
• Non
treatable
soils
(<10%).
• N/A
• Send any
stripped
vegetation to an
anaerobic
digestor
plant/composting
facility.
Construction
Prevent/Reduce
Re-Use
Recycle/Recover
Dispose
ordering of materials.
This will reduce the
amount of unwanted
material brought to
site.
techniques will
off-cuts).
• Use of modular units
which will be
prefabricated,
therefore reducing
off-cuts.
• Sell direct to
local market
or send
material to a
treatment
centre for
later re-use.
• Send to an offsite MRF.
• N/A
e) Cannington Park and Ride Facility
4.3.12
Surplus excavated soils would be stored on-site for re-use during restoration of the
land. There will be no removal or importation of soils to the site. The sub-base
would be held upon a plastic grid in the parking bay areas where the sub-base stone
is exposed. There would be some small buildings, including security and welfare
facilities, which would be of modular construction. The volumes of waste to be
produced from the earthworks and construction phases of the Cannington Park and
Ride Facility are displayed in Table 4.1. Table 4.9 details the management of the
waste streams at Cannington Park and Ride Facility in terms of the waste hierarchy.
Table 4.9: Management of Main Waste Streams at Cannington Park and Ride Facility
Type
Prevent/Reduce
Re-Use
Recycle/Recover
Earthworks
• Storage of surplus soils as • No surplus soils
excavations and storage
bund for re-use during
anticipated.
methods (e.g. purposeful
restoration.
bunds) to prevent material
vegetation to an
being sent off-site.
anaerobic digestor
plant/composting
facility.
Construction • Careful design and
• Send off-site to a MRF.
market for re-use or send
materials. This will reduce
material to a treatment
the amount of unwanted
centre for later re-use.
material brought to site.
techniques will reduce the
amount of resultant waste
(e.g. off-cuts).
Design of
• Sell direct to local market • Send off-site to a MRF.
• Design of buildings.
Buildings
for re-use of components
/materials (e.g. cladding)
from the framed units,
although depends on
demand.
39
f) Cannington Bypass
4.3.13
It is proposed to excavate a cutting for the road to pass through. As there is not
adequate space for material to be stored on-site (e.g. as a bund), this would result in
material being removed from site, as shown in Table 4.1. The management of the
waste streams at Cannington Bypass in terms of the waste hierarchy is shown in
Table 4.10.
Table 4.10: Management of Main Waste Streams at Cannington Bypass
Type
Prevent/Reduce
Re-Use
Recycle/Recover
Earthworks
excavations and
limit material being
sent off-site.
• Re-use surplus soils at
another site e.g.
Programme (NISP) or
a waste broker.
Construction
unwanted material
brought to site.
send material to a
later re-use.
vegetation to an
anaerobic digestor
plant/composting
facility.
• Send surplus soil offsite to an MRF.
g) Junction 23 – Park and Ride, Freight Management and Courier
Consolidation Facilities and Induction Centre
4.3.14
It is understood that a potential for a degree of soil and groundwater contamination
exists at the site due to dumping of waste by the former landowner. However, at this
stage, it is assumed that remediation will not be required as a risk to future site users
and the wider environment has not been identified. As a worst case scenario, site
levels will require raising to approximately 1.0m, due to an identified risk of flooding
at the site. It is proposed for topsoil to be stripped across the site and all surplus
excavated soils to remain on-site as bunds. There would be some earthworks
material requiring removal from site as shown in Table 4.1, predominantly arising
from the removal of existing roads. The proposed management of waste streams in
terms of the waste hierarchy is given in Table 4.11.
Table 4.11: Management of Main Waste Streams at Junction 23
Earthworks
40
Prevent/Reduce
Re-Use
Recycle/Recover
excavations and
limit material being sent
off-site.
• Storage of surplus soils
as bunds on-site for reuse (where required)
during reinstatement.
• Recover any stripped
vegetation either on-site
(e.g. shredding) or offsite.
Construction
Design of
Buildings
Prevent/Reduce
Re-Use
Recycle/Recover
unwanted material
brought to site.
which will be
reducing off-cuts.
later re-use.
whole units or
erials), although
over time.
h) Junction 24 – Park and Ride Facility, Freight Management Facility,
Temporary Consolidation Facility for Postal/Courier Deliveries and
Temporary Induction Centre.
4.3.15
The site currently comprises a storage and distribution centre which is proposed to
be refurbished to form the Junction 24 site. In terms of earthworks, there would be
only some minor remodelling of the ground contours at the site. It is proposed for
modular buildings to be constructed, which will produce minimal waste as the units
are likely to be prefabricated. The volumes of waste to be produced from the
earthworks/construction phase of the development are displayed in Table 4.1. The
main waste streams to be produced and their proposed management are outlined in
order of the waste hierarchy in Table 4.12.
Table 4.12: Management of Main Waste Streams at Junction 24
Earthworks
Prevent/Reduce
Re-Use
Recycle/Recover
methods (e.g. purposeful
bunds) to limit material
anticipated.
anticipated.
41
Construction
Design of
Buildings
Prevent/Reduce
Re-Use
Recycle/Recover
materials. This will reduce
the amount of unwanted
material brought to site.
techniques will reduce the
amount of resultant waste
(e.g. off-cuts).
which will be
reducing off-cuts.
later re-use.
• - Send off-site to
a MRF.
whole units or
erials), although
over time.
MRF.
i) Williton Park and Ride Facility
4.3.16
An existing lorry park/depot and storage area is proposed to be developed to provide
a temporary park and ride facility. Consequently, construction wastes are anticipated
to be at relatively low levels due to a minimal change in use. Some earthworks
hardcore and pavements are to be removed. The volumes of waste to be produced
from the earthworks and construction phases of the Williton Park and Ride Facility
are displayed in Table 4.1. Table 4.13 outlines the main waste streams and their
proposed management in order of the waste hierarchy.
Table 4.13: Management of Main Waste Streams at Williton Park and Ride Facility
42
Type
Prevent/Reduce
Re-Use
Recycle
Earthworks
methods to limit material
• Send surplus
earthworks
material off-site
to an MRF.
Construction/Demolition
Waste
material. This will
unwanted material
brought to site.
techniques.
• Re-use surplus
earthworks materials
at another site e.g.
Programme (NISP)
or a waste broker.
local market for reuse or send material
to a treatment centre
for later re-use.
• Send off-site to
a MRF.
5.
OPERATIONAL WASTES
5.1
Operational Wastes at HPC Power Station
a) HPC Power Station
5.1.1
The HPC power station is proposed to be in operation for 60 years. As such, waste
will be continually produced during this period. The anticipated activities during the
operational phase of the HPC development site is described below in terms of likely
waste production below, with total numbers displayed in Table 5.1 below.
Table 5.1: Total Operational Phase Waste Quantity Estimates at HPC Power Station
Operational Waste (tonnes)
TOTAL (tonnes per
annum)
TOTAL (over lifetime of
development)
HPC Power Station (Non Radioactive
Waste)
5.1.2
1,140
68,400
(60 years)
It has been determined that 1,140 tonnes of non-radioactive waste will be produced
each operational year, as shown in Table 5.2. Of this, approximately 940 tonnes will
comprise inert wastes (e.g. brick and glass) and commercial waste and 200 tonnes
would comprise hazardous waste. Operational wastes will be produced from workers
(e.g. general waste) and activities including maintenance of pipes, equipment and
control rooms.
Table 5.2: Non-Radioactive Operational Waste Per Annum at HPC (based on two EPR units)
Waste Type
Tonnes per Annum
Inert and Commercial Waste
940
Hazardous Waste
200
Total
5.1.3
1,140
Chapter 7 of the Environmental Statement sets out the type and quantity of
radioactive waste and spent fuel that will be generated during the operation of the
HPC power station. The volumes of waste are based on experience of operating
pressurised water reactors (PWRs) in France and Germany. The waste from these
PWRs is considered to be representative of the waste from the EPR. Waste package
numbers were developed based on operating experience and are based on waste
loadings used during existing operations. The predicted radioactive waste and spent
fuel volumes are summarised in Table 5.3, Table 5.4 and Table 5.5.
43
Table 5.3: Operational Intermediate Level Waste (ILW) Waste Generation and Proposed
Management Strategy for the HPC UK EPRs
ILW Stream
Anticipated Annual
Raw Waste Volume
from Two UK EPRs
3
(m )
Lifetime (60yr) Raw
Waste Volume from
3
Two UK EPRs (m )
Anticipated Lifetime
(60yr) Package
Numbers from Two
UK EPRs
ILW ion exchange
resins
6
360
900
ILW spent cartridge
filters
5
300
720
5
300
1,200
Operational wastes
>2mSv/hr
2
120
360
ILW wet sludge
2
120
3
Totals
20m
480
3
1,200m
3,660 Packages
Table 5.4: Operational Low Level Waste (LLW) (two units)
Waste Type
Estimated Annual Raw
Waste Volume from Two
3
UK EPRs (m )
Lifetime (60yr) Raw
Waste Volume from Two
3
UK EPRs (m )
15
900
Wet sludge (from sumps, tanks)
1
60
LLW cartridge filters from auxiliary circuit
treatment
0.1
Evaporator concentrates
6
360
Air and water Filters
8
480
Noncombustible
25
1,500
Combustible
75
4,500
4
240
12
720
146
8,766
Steam Generator Blowdown System APG
(SGBS) ion-exchange resins
Dry active wastes
(excluding metals)
Waste oils and solvents
Metal scraps and metallic waste
Total
6
Table 5.5: Spent Fuel (two units)
Total Number of Spent
Fuel Assemblies from
Two EPRs (60yrs)
Spent Fuel
44
6,800
Raw Waste Volume from
3
Two UK EPRs (m )
Total Number of Spent
Fuel Canisters for
Disposal to Geological
Disposal Facility
1,513
1,700
5.2
Operational Waste at the Associated Developments
5.2.1
Table 5.6 displays the total wastes volumes anticipated to be produced at the
associated development sites during their operational lifetime.
Table 5.6: Total Operational Phase Wastes at the Associated Development Sites
Operational Waste (tonnes)
TOTAL
(tonnes per annum)
TOTAL
(over lifetime of development)
Temporary jetty
0
0
168
1,008
0
0
75
487
Bridgwater A accommodation campus
280
1,820
Bridgwater C accommodation campus
50
325
Cannington park and ride
86
688
0
0
Junction 23
86
600
Junction 24
86
744
86
600
917
6,272
HPC accommodation campus
Off-Site Associated Developments
Combwich Wharf refurbishment and
extension
Combwich Wharf freight laydown
facility
Cannington bypass
Total
i. HPC Accommodation Campus
5.2.2
Operational waste produced at the campus is likely to comprise general domestic
waste, including food waste, paper/card, plastic bottles, clinical waste, sanitary and
gardening wastes. However, as there is a canteen on each site, minimal cooking
facilities will be available, limiting the production of food waste.
5.2.3
The national performance indicators show that Sedgemoor residents generate for
collection approximately 400kg per head per annum of wastes. However, based on
the assumption above, it would be reasonable to assume that the wastes generated
per worker at the campuses are unlikely to exceed 220kg per annum. To allow a
margin for peaks and some uncertainty it appears reasonable a general increase of
50% for consideration of spatial requirements etc. This results in an assumption that
each worker will generate approximately 330kg of wastes for collection per annum.
Hence, based on 510 workers, this equates to approximately 168 tonnes of general
waste being produced from the HPC accommodation campus each year, which
would total approximately 1,008 tonnes during the six year operational phase of the
campus (see Table 5.6).
45
ii. Bridgwater A and C Accommodation Campuses
5.2.4
As per paragraph 5.2.3, assuming that each worker will generate approximately
330kg of wastes for collection per annum and based on 850 workers residing at
Bridgwater A, this equates to approximately 280 tonnes of general waste being
produced from the campus each year, totalling approximately 1,820 tonnes over the
operational phase of approximately six and a half years. However, as Bridgwater A
is to be constructed in two phases, this calculation is considered to be conservative,
as the full 850 workers will not be present until the second construction phase is
complete. At Bridgwater C there will be 150 residing workers at the campus which
will equate to approximately 50 tonnes of general waste per annum and
approximately 350 tonnes over its lifetime of seven years (see Table 5.6).
iii. Operational Wastes at the Remaining Associated Developments
5.2.5
Operational wastes from the temporary jetty, Combwich Wharf refurbishment and
extension and Cannington Bypass will be negligible. There would be some general
waste from the welfare facilities, security facilities and waste bins at Cannington Park
and Ride Facility, Junction 23/24 and Williton Park and Ride Facility. The predicted
waste volumes for these associated development sites are displayed in Table 5.6.
The numbers are based on calculations from similar scaled projects, combined with
professional judgement. There will be minor quantities of general waste and office
type waste (e.g. paper) produced from the operational phase of the Combwich Wharf
freight laydown facility.
5.2.6
Notably, workers housed in pre-existing accommodation within Somerset will not
exert any undue burden upon the local waste management infrastructure/facilities, as
it is already assumed that this accommodation will be occupied.
46
6.
POST-OPERATIONAL/
DECOMMISSIONING WASTES
6.1
Introduction
6.1.1
The majority of the associated development sites are proposed to be removed and
reinstated once the HPC power station has been constructed. The HPC power
station will require decommissioning once electricity generation has ceased (in 60+
years time). The Post-Operation Strategy sets out the process by which the postoperational state will be determined for each off-site associated development site,
whilst the HPC development site has its own legacy strategy. This chapter details
the various post-operational/decommissioning phase waste streams which will be
produced from the HPC Project, as summarised in Table 6.1. As a conservative
measure, this chapter sets out the worst case scenarios in terms of waste production.
6.1.2
Careful design of the various developments will maximise re-use and recycling of
these waste streams. As it is difficult to predict the future markets, following the
operational phases of the associated developments and the HPC power station,
there will be a review stage, whereby the proposed waste management methods
would be reassessed. This would take into account the development of new
management methods or facilities becoming available to the project from the time of
this document drafting.
Table 6.1: Total Decommissioning/Post-Operational Phase Waste Quantity Estimates
Decommissioning/PostOperational Phase Waste
(tonnes)
Inert
NonHazardous
Hazardous
(79%)
(20%)
(1%)
TOTAL
TOTAL
(Contingenc
y = 10%
HPC Power
Station,
20% AD's)
HPC power station
115,100
26,140
14,57
145,697
160,267
Temporary jetty
37,707
9,546
477
47,730
57,276
HPC accommodation
campus
29,709
7,521
376
37,606
45,128
Off-Site Associated Development Sites
Combwich Wharf freight
laydown facility
265,756
67,280
3,364
336,400
403,680
Bridgwater A
accommodation campus
61,523
15,576
778
77,877
93,453
Cannington park and ride
14,096
3,569
178
17,843
21,412
Junction 23
76,343
19,327
966
96,636
115,964
Junction 24
2,462
623
31
3,116
3,739
815
206
10
1,031
1,238
603,511
149,788
6,180
763,936
902,157
TOTAL
47
6.1.3
a)
Post-Operational Phase Wastes from the Associated Developments
i.
Temporary Jetty
The jetty is only a temporary development and will be removed following construction
of the HPC power station. The estimated waste volumes to be generated during the
post-operational phase of this development are displayed in Table 6.1.
ii.
6.1.4
HPC Accommodation Campus
It is proposed to completely remove of the campus and restore the land. This will
include removal of all infrastructure and excavation of footings. As the living
accommodation will probably comprise prefabricated modular units, there is the
potential that entire units, components and building fabrics could be re-used following
their removal from site, although is recognised that this is market dependent. There
is also a potential that the suppliers could enter a contract to buy back parts or all of
the units (e.g. frames, fabrics, timber cladding). It is EDF Energy’s intention to re-use
the modular units where practical, although factors such as construction standards
over time (e.g. insulation) would need to be considered. EDF Energy will explore the
options for re-use at a later date and compile a Re-use Strategy. As the amenity
building may not be of modular construction, the potential for re-use of materials
would be reduced, however, it may be possible to re-use some components. The
estimated waste volumes to be generated during the post-operational phase of the
HPC Accommodation Campus are displayed in Table 6.1.
iii. Refurbishment and Extension of Combwich Wharf and Freight
Laydown Facility
6.1.5
It is proposed for Combwich Wharf to remain operational, including the road linking it
to the laydown area; hence, there will not be any post-operational waste. The Freight
Laydown Facility is proposed to be removed and the site restored to agricultural land.
This would include removal of all imported fill, which will be re-used off-site (e.g.
through NISP). The estimated waste volumes to be generated during the postoperational phase of the Combwich Wharf Freight Laydown Facility are displayed in
Table 6.1.
iv. Bridgwater A Accommodation Campus
6.1.6
It is proposed for the accommodation campus to be removed from site, with the
exception of the rhyne network and main access, which will be left as postoperational. As per the HPC Accommodation Campus and Bridgwater C, the site
buildings are to be of modular construction. Consequently, a potential for re-use of
entire units or parts/components of the units (e.g. fabrics) may be possible following
their removal from site. The estimated waste volumes to be generated during the
post-operational phase of the Bridgwater A Accommodation Campus are displayed in
Table 6.1.
v.
6.1.7
48
Bridgwater C Accommodation Campus
It is proposed that once the HPC power station has been constructed, that the
campus would be transferred to a third party for use in connection with Bridgwater
College. As the units are to be of semi-modular construction, this will allow flexibility
for the college, allowing a series of options for re-use.
vi. Cannington Park and Ride Facility
6.1.8
The site would be restored to its current agricultural use once the park and ride
facility is no longer required. Some of the landscaping would be retained. There is a
potential for re-use of the access road surfacing (tarmacadam) and the geo-grid from
which the parking bays are formed. There is a potential for the on-site cabins
(security and welfare facilities) to be sold on and re-used. The estimated waste
volumes to be generated during the post-operational phase of the development are
displayed in Table 6.1. The volumes in Table 6.1 assume a worst-case scenario,
whereby re-use of the access road surfacing and the geo-grid does not occur.
vii. Cannington Bypass
6.1.9
6.2.7 It is proposed for Cannington Bypass to be retained to support the operational
phase of the HPC power station and would be adopted by the highways authority for
use as a public highway. Hence, there will be no post-operational wastes produced
from this development.
viii. Junction 23 – Park and Ride, Freight Management and Courier
Consolidation Facilities and Induction Centre
6.1.10
Future re-use for the site is currently undecided, however, for this assessment a
worst-case scenario is assumed, whereby the site would be restored to its current
agricultural use. The estimated waste volumes to be generated during the postoperational phase of the Junction 23 site are displayed in Table 6.1.
ix. Junction 24 Park and Ride Facility, Freight Management Facility,
Temporary Consolidation Facility for Postal/Courier Deliveries and
Temporary Induction Centre
6.1.11
It is proposed for the temporary induction centre and postal facility to be removed
during Q3 2014 with the remainder of the Junction 24 site in its operational phase
until the HPC power station has been constructed. The post-operational phase of the
development will require the removal of the temporary built works carried out in
relation to the operation of the site as a park and ride facility and freight management
facility and appropriate measures would be carried out to allow the site to be
available for storage/distribution purposes. The estimated waste volumes to be
generated during the post-operational phase of the development are displayed in
Table 6.1.
x.
6.1.12
Williton Park and Ride Facility
The site is proposed to be re-used as a lorry park depot and storage area, which will
require some changes to the site layout, resulting in some earthworks and
construction/demolition type waste. The estimated waste volumes to be generated
during the post-operational phase of Williton Park and Ride Facility are displayed in
Table 6.1.
49
6.2
Decommissioning Wastes from HPC Power Station
6.2.1
The HPC power station decommissioning strategy and waste management
arrangements are described in detail within Chapter 4 of the Environmental
Statement.
6.2.2
The decommissioning strategy to be employed for HPC is Early Site Clearance.
Fundamentally this strategy means that decommissioning would commence as soon
as practicable after the end of generation at the site, and would proceed without
significant delay to complete the process of decommissioning of the site.
6.2.3
The decommissioning process is likely to take up to 20 years to complete. Waste
would be created during the site decommissioning from removing plant equipment,
structures, buildings and facilities. As such, the greatest proportion of waste would
be non-radioactive and suitable for re-use or recycling.
6.2.4
It has been calculated that approximately 160,300 tonnes of waste would be
segregated and stored temporarily on-site, prior to re-use or being sent to a MRF. A
detailed breakdown of waste types and volumes is given in Table 6.1. Furthermore,
Table 6.2 provides a breakdown of the radioactive waste to be produced during
decommissioning.
Table 6.2: Estimated HPC Decommissioning Radioactive Waste Quantities
Primary Nuclear Island decommissioning waste
Clean-up waste (Secondary waste from the
decontamination, decommissioning & clean-up
of the plant)
50
ILW (t)
LLW (t)
VLLW (t)
1,559
8,885
14,438
129
320
1,966
7.
SCHEDULE OF WASTE PRODUCTION
7.1
Strategic Plan
7.1.1
For the purpose of this document, it is assumed that the DCO would be granted in
mid-October 2012, and EDF Energy’s target for the first nuclear reactor becoming
operational is 2019. With regards to the HPC power station, the civil works are
proposed to commence for UK EPR Reactor Unit 1 in 2013 and continue until mid2018. It is proposed that both units will be operational by mid-2020. The strategic
programme for the HPC development site is displayed in Table 7.1 below.
7.2
Schedule of Waste Production
7.2.1
In total, approximately 1.5 million tonnes of waste is predicted to be produced during
the earthworks/construction, operation and decommissioning/post-operational
phases of the HPC development site and the off-site associated developments. The
main construction waste peak occurs during mid-2013, as indicated in Table 7.2,
attributable to the majority of the associated developments being under construction
at this same time, along with the site preparation works and jetty construction at
HPC. The waste volumes decrease notably in early 2015, owing to the onset of the
operational phases of the associated developments, although the construction of the
HPC power station continues. The volumes remain relatively constant until mid2020, when they begin to increase significantly as the post-operational phases
commence. A significant peak occurs in 2021, particularly associated with the
removal of the following sites: the temporary jetty, the HPC Accommodation Campus,
Bridgwater A, Cannington Park and Ride Facility, Combwich Wharf Freight Laydown
Facility and the Junction 23/24 sites. Table 7.2 does not include the operation or
decommissioning of the HPC power station.
7.2.2
Following the operational phases and prior to the post-operational phases of the
associated developments and HPC power station (in 60+ years), there will be a
review stage, whereby the proposed waste management methods would be
reassessed. This would take into account any new management methods or
facilities becoming available to the project from the time of this document drafting.
51
Table 7.1: HPC Project Strategic Programme
52
Table 7.2: Schedule of Waste Production (2011-2023) (tonnes)
Waste Total
160000
140000
120000
100000
80000
60000
40000
20000
Sep-22
Mar-22
Sep-21
Mar-21
Sep-20
Mar-20
Sep-19
Mar-19
Sep-18
Mar-18
Sep-17
Mar-17
Sep-16
Mar-16
Sep-15
Mar-15
Sep-14
Mar-14
Sep-13
Mar-13
Sep-12
Mar-12
Sep-11
Mar-11
0
7.3
Worker population – Waste Implications
7.3.1
It is projected that the peak workforce will total 5,600 in 2016, before gradually falling
toward the end of construction of HPC power station 2020. Of these 5,600 workers,
it is predicted that 1,900 will not require accommodation (e.g. commute to work from
home) and the accommodation campuses will house up to 1,510 workers.
Consequently, there will be an increase in general waste production and the use of
existing infrastructure within Somerset during the construction period, due to the
influx of up 1,510 additional people at the temporary accommodation campuses. The
remaining workers will be housed in accommodation within the local area. Notably,
these workers will not exert any undue burden upon the local waste management
infrastructure/facilities, as it is already assumed that this accommodation will
be occupied.
53
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54
8.
ANALYSIS OF LOCAL AND REGIONAL
WASTE FACILITIES
8.1
Introduction
8.1.1
Due to the extent of the development and constraints at the HPC development site
and the off-site associated developments (e.g. lack of available space), it will not be
practical to treat waste on-site. As a result, it is proposed to sustainably use the
existing waste infrastructure within the surrounding and wider area of Hinkley Point to
re-use, recycle and recover the waste produced. Furthermore, the proximity principle
will be applied, whereby waste facilities located closest to the point of waste
production are given consideration over facilities located further away.
8.1.2
This section assesses the existing waste infrastructure within the vicinity of the
developments, and its suitability for processing waste produced as a result of the
HPC Project. This takes into account the distances of the various waste facilities
(e.g. proximity principle), the waste types that they accept, together with volumes
(including waste peaks) and costs (where information is available). Notably, a Waste
Options Appraisal is given in Section 9. These facilities are discussed in the
sequence of the waste hierarchy.
8.1.3
Any remaining waste would be disposed of at landfill, however, it is EDF’s policy that
this would not exceed more than 10% of the total earthworks, construction and
demolition waste produced. This would be achieved through segregation at facilities
on-site as described in Section 10.
8.1.4
It should be noted that following the operational phases and prior to the postoperational phase of the associated developments and the HPC power station, there
will be a review stage, whereby the proposed waste management methods would be
reassessed.
8.2
Local Facilities
a) Preparation for Re-use
8.2.1
It is proposed for there to be no undue burden upon existing waste infrastructure
within Somerset as a result of the HPC Project. Where possible, excavated soils will
be re-used on the site of origin during cut and fill operations or reinstatement. It may
also be possible to re-use soils directly on other sites, for example through NISP. Of
note, calculations based upon figures provided by SCC, indicate that between 2011
to 2021, a total of 14,695 tonnes of earthworks material would be required in
Bridgwater for the development of residential and commercial properties (excluding
HPC and the off-site associated developments) (see Table 8.1 below). As such, it
may be possible to re-use surplus soils on some of these development sites.
55
Table 8.1: Material Required for Residential/Commercial Developments in
Bridgwater 2011-2121
Residual 2011-2021
Residential (units)
2
Commercial (m )
Tonnage of Material Required
3,265
7,405
90,000
7,290
TOTAL (tonnes)
14,695*
*Note:
• Assumes only 25% of developments would require material from Hinkley Point.
• Crushed material would be required across approximately one third of the site area.
• A capping layer of 600mm will be required.
• Assumes residential properties occupy an average area of 28m2.
Source of Material:
Commercial
Location
Planning Ref.
Area of
Development
2013
Area of
Development
2016
Area of
Development
2021
Express Park – majority of site now
built out.
09/01/00015
-
-
-
Permission for Police HQ granted
(construction dependant on PFI
funding).
(4 office blocks, 1
hotel, 1
restaurant, 1
public house, 1
pfs) approved
05.04.2002
09/10/00007
-
-
-
(3 storey office
building to house
police HQ – 7,000
2
m)
56
2
2
Regional Agricultural Business Centre
37/04/00054(O/L)
-
B1: 500 m
2
B8: 4,350 m
2
A1: 850 m
Bristol Road Phase 1 – assume build
out by 2016
09/06/00011(O/L)
-
B1: 7,000 m
2
B8: 2,500 m
-
Bristol Road Phase 2 – consent
granted for private 62 bed hospital.
09/10/00010
5,300 m
(hospital)
-
-
Little Sydenham Farm – now NE
Bridgwater. Morrisons RDC now under
construction (800,000 sq ft) Further
2
27,500 m , B1(a) and 8,500 B1 (b)(c)
with outline. Assume all built out by
2021
09/08/00017
72,000 m2
B1: 18,000 m2
2
2
B1: 500 m
2
B8: 4,350 m
2
A1: 850 m
B1: 18,000 m2
Residential
8.2.2
Location
Planning Ref.
No.
Properties
2013
No.
Properties
2016
No.
Properties
2021
Friarn Street – 24 units completed
08/92/00159
-
-
-
Horsepond – 24 units completed
08/07/00303
-
-
-
Monmouth Trading Estate
08/07/00224
26
27
-
Old Taunton Road industrial estate
08/07/00363
76
-
-
Wembdon Road – granted subject to
s.106
08/10/00157
-
212
-
George Street (14 units) completed
08/05/00247
-
-
-
St.Mary Street/George Street (31 units)
completed
08/06/00258
-
-
-
North East Bridgwater – development
will commence from the north of the
site.
09/08/00017
350
400
1,000
NDR – outstanding 344 units now all
now completed
-
-
-
-
South Bridgwater – total units 1460.
Site (452 completed)
37/04/00014
37/05/00014
450
558
-
Federal Mogal (see site plan) – 126
dwellings (granted subject to S.106)
08/10/00073
-
126
-
Crypton site, Bristol Road (see site
plan) – 40 dwellings
08/10/00088
-
40
-
Materials of value, such as pipes and steel and fill materials could be sold direct to
the local market. This would need to be done in line with the relevant regulations,
including the WRAP Quality Protocols. By selling the material locally, this would
have the advantage of reducing vehicle movements on roads further afield. Some of
the accommodation units are proposed to be of modular construction type, therefore
there will be a potential for contracts such as ‘buy-back’ to be sought with suppliers,
or the direct re-use of materials/components. Due to potential design life issues, it is
far more likely that components of structures would be suitable for re-use rather than
whole units. Furthermore, if feasible with the likely legacy use of the site,
infrastructure will remain in-situ.
b) Recycling
i. Surplus Soils
8.2.3
If it is not possible to directly re-use surplus soils on-site or on other sites (e.g.
through NISP), then these will be transported to a MRF (see paragraph 8.2.5).
ii. Construction and Demolition Waste
8.2.4
In Somerset, there are numerous small scale MRF’s/Waste Transfer Plants which
can take mixed waste and segregate it for processing.
8.2.5
An assessment of 52 operational MRF’s and Waste Transfer Plants within Somerset
has been undertaken, using information provided in SCC’s Mineral and Waste
Development Framework. The assessment was based on the annual tonnage
57
capacity of each facility (as per the Environment Agency Public Register) and its
distance from the HPC development site; the results, of which are presented as
Table 8.2 below. Following discussions with SCC, it is apparent that facilities in
Somerset are either small-scale or recycle predominantly household type wastes,
rather than construction and demolition waste.
Table 8.2: Waste Facility Search for Somerset
Recycling Facility
Distance
(miles)
Capacity
(tonnes p/a)
Operator
Post
Code
Material Recycling Facilities and Waste Transfer Stations
Old Station Yard Scrap Metal
26.4
49,999
J C Thomas & Sons Ltd
BA6 9LU
Myrtle Garage Scrap Metal Yard
36.4
13,000
Pylle Motor Spares Ltd
BA4 6TA
Green Ore Farm, Wells
32.7
74,999
Bruchen Down Ltd
BA5
Park Farm Scrap Yard
26.4
5,000
Colin White
BA6 9NN
Hamp Yard Scrap Metal Recycling
10.3
5,000
John Metcalfe
TA6 7RR
Black - Ram Recycling Ltd
19.2
74,999
Black - Ram Recycling Ltd
TA9 4AG
Johnson Metals Ltd
11.5
7,500
Johnson Metals Ltd
TA6 5L7
Abbey Hill Trading Estate Scrap
43.0
5,000
L & W Metals (Yeovil) Ltd
BA21 3AR
45.7
5,000
Mountstar Metals Ltd
BA21 5HA
Symonds Salvage - Henstridge
50.7
4,999
R Symonds
BA21 5HA
Springmead Works Scrap Yard
33.1
25,000
Sheppard (Group) Ltd George
TA20 1BB
Metal Yard
Penmill Trading Estate Scrap Metal
Yard
Cohen Chard Division
Scrap Metal Mecycling Yard
27.6
5,000
Smith D V & R R
TA11 7JB
Blacknell Lane Scrap Metal Recycling
42.4
25,000
Hallett Recycling Ltd
TA18 7HE
W S Scrap Metals
49.2
5,000
Stoodley William
BA7 7NR
Martock Waste Paper (now Viridor)
25.0
50,000
Viridor
TA12 6HB
Old Railway Yard Scrap Metal
30.1
5,000
Crossleys Motor Services Ltd
TA11 7E7
43.0
5,000
BA21 3AR
Tyre Renewals Ltd
41.5
24,999
T R L Ltd
BA7 7DT
Kedgeworth 2000 Ltd
50.7
2,500
Kedgeworth 2000 Ltd
BA8 0TN
Priory Way Scrap Metal Recycling
21.9
25,000
Sims Group UK Ltd
TA1 2BB
Priory Depot Waste transfer Stations
21.9
25,000
Deane D L O
TA1 2BB
The Old Brickworks Metal Recycling
28.7
5,000
A J Garrett
TA21 9HW
Wansbrough Mill
13.2
50,000
St. Regis Paper Co Ltd
TA23 0AY
EB Janes Ltd
19.6
2,500
EB Janes Ltd
TA24 5BJ
Yard
Recycling Yard
Yard
58
Recycling Facility
Distance
(miles)
Capacity
(tonnes p/a)
Operator
Post
Code
May Gurney Plc
BA4 6NA
Somerset County Council
BA11 4RN
Evercreech Depot
38.3
74,999
Frome Waste Recycling Centre
46.5
7,500
Lime Kiln Hill Transfer Station
45.4
75,000
Western Skip Hire Ltd
BA11 3PH
Southwood Waste Transfer Station
38.0
74,999
Commercial Recycling Ltd
BA4 6LX
Bunns Lane Scrap Metal Recycling
48.9
24,999
Ransome J W & Son
BA11 3PH
Burcott House Farm Transfer Station
31.5
25,000
Lansdown, B W & E F
BA5 1NH
Colley Lane Depot
12.0
149,998
May Gurney Plc
TA6 5LB
6.5
25,000
J Roberts and Sons
TA6 3BB
Burnham Waste Ltd
19.2
74,999
Burnham Waste Ltd
TA9 4AN
Brue Avenue Transfer Station
12.2
2,499
Hemmings Frederick
TA6 5LT
Dunwear Transfer Station
13.5
500
Towens Waste Management
TA7 0AA
Yard Transfer Stations
Spaxton Road Transfer Station
Ltd
The Old Oil Works Transfer Station
18.9
25,000
Rickard Terence E
TA9 3AH
Silver Lining
16.6
4,999
Silver Lining Industries
TA7 0JS
Axe Road Transfer Station
12.1
25,000
Erwin Rhodes Contracting Ltd
TA6 5LP
Dunwear Depot
13.5
25,000
R K Bell Ltd
TA4 0AA
Perry's Material Recycling Facility
12.7
74,999
Perry's Recycling
TA6 6AJ
Castlefields Transfer Station
12.1
25,000
S Roberts & Son (Bridgwater
TA6 4BB
Ltd)
Whiscombe Hill Transfer Station
27.2
25,000
Westcombe Waste Ltd
TA11 6HY
Dimmer Hazardous Waste Transfer
42.2
5,000
Viridor Waste Management
BA7 7NR
Perry's MRF
38.0
74,999
Perry's Recycling Ltd
BA22 8DL
Priorswood Taunton MRF
20.2
25,000
Viridor
TA2 8QY
Greenham Quarry Transfer Stations
33.3
25,000
Wasteology Ltd
TA21 0JU
Wellington Waste Skips Transfer
28.7
25,000
Palfrey Mr A R & Ralfrey Mrs B
TA21 9HW
Station
Station
J
Taunton Trading Estate Transfer
30.6
25,000
Riste Jnr Mr H
TA2 6RX
Bickenhall Lane Transfer Station
25.6
5,000
Somerset County Council
TA3 6TN
Silver Lining Industries Ltd
24.0
16,499
Silver Lining Industries
TA1 2BB
Mart Road Industrial Estate Transfer
19.5
25,000
West Somerset Council
TA24 5BY
42.2
25,000
Viridor
BA7 7NR
Station
Station
Dimmer Materials Recycling Facility
(mrf)
59
Recycling Facility
Distance
(miles)
Capacity
(tonnes p/a)
Operator
Post
Code
Monksham Farm, Frome
BA11 5BR
Dimmer In Vessel Composting
BA7 7 NR
Composting Facilities
Monksham Farm, Frome
46.7
1,469
Dimmer In Vessel Composting and
42.2
35,000
rotary composting
and Rotary Composting
Dimmer Open Windrow
42.2
15,000
Dimmer Open Windrow
BA7 7NR
Walpole Composting and Wood
15.4
74,999
Walpole Composting and Wood
TA6 4TF
Shredding Facility
Shredding Facility
Smokey Farm Staplegrove
25.0
2,500
Smokey Farm Staplegrove
TA2 6SL
Whiteball Landfill Site
31.9
25,000
Whiteball Landfill Site
TA21 0LT
Lime Kiln Hill Quarry Landfill Site
45.4
52,000
Lime Kiln Hill Quarry Landfill
BA11 3PH
Landfills
Site
Walpole Landfill
15.4
446,350
Walpole Landfill
TA6 4TF
Dimmer Landfill
42.2
150,000
Dimmer Landfill
BA7 7NR
Whiscombe Hill Landfill
27.2
25,000
TA11 6HY
Anaerobic Digestion / Sewage Treatment Facilities
Ham Sewage Treatment Works (AD
22.7
~3,000
Wessex Water
Taunton
6.1
19,999
-
TA5 2NJ
Plan)
Cannington Cold Stores
8.2.6
It is reported by SCC in their document Waste Management Need to 2028
(March 2011), that in terms of construction/demolition waste, 104,857 tonnes of inert,
24,936 tonnes of non-inert and 39,410 tonnes of ‘other’ waste was received by
licensed facilities within Somerset during 2008, totalling 393,603 tonnes. Following
discussions with SCC, it is apparent that, in order for there to be a sufficient capacity
to deal with the volumes of waste to be produced from the HPC Project, it will be
necessary to use a network of smaller MRF’s within Somerset and the surrounding
counties, namely Devon, Gloucestershire, Dorset, Wiltshire, Monmouthshire
and Glamorgan.
8.2.7
A search carried out by the Environment Agency of waste management facilities
within Somerset and the surrounding counties of Dorset, Wiltshire and Devon has
confirmed additional capacity.
iii. General Waste from the Accommodation Campuses
8.2.8
60
In terms of municipal solid waste, 279,117 tonnes arose within Somerset during
2009/2010 (Ref 8.13). Of this, 45% was recycled, 0.7% was treated and 54% was
sent to landfill. The national performance indicators show that Sedgemoor residents
generate for collection approximately 400kg per head per annum of wastes.
8.2.9
The majority of general waste from the accommodation campuses is anticipated to
be re-useable, recyclable or recoverable. In Somerset, waste collection is carried out
by SWP. However, in view of the non-residential amenities at the accommodation
campuses (e.g. canteens and bars) and under Schedule 2 of the Controlled Waste
Regulations 1992 (see paragraph 2.3.8), the Local Authority would charge for
collecting the waste. However, EDF Energy could opt for employing a commercial
contractor, which has several advantages (see paragraph 9.3.4).
8.2.10
Viridor has several outlets for various materials. Food waste could be delivered to
sites at Castle Cary, Exeter, Bournemouth and Ludlow. There is a MRF at
Priorswood, Taunton that can receive co-mingled wastes, as well as individual
specific waste streams such as glass. Residual wastes that are non-recyclable
would currently be sent to the Walpole Landfill. Viridor also operate several
household waste recycling centres on behalf of SCC (Bridgwater, Chard, Highbridge,
Taunton and Williton) with individual capacities of <25,000 tonnes per annum.
iv. Hazardous Waste
8.2.11
According to SCC’s document Waste Management Need to 2028 (March 2011), it is
assumed that approximately 33,865 tonnes of hazardous waste is produced in
Somerset annually. The only facility within Somerset which can accept hazardous
waste is Walpole landfill, which takes asbestos waste. Notably, the nearest nonlandfill site which can accept hazardous waste is the Energy from Waste Plant near
Heathrow.
v. Food/Vegetation
8.2.12
There is a composting and wood shredding facility at Walpole Landfill close to
Junction 23 of the M5 which has a capacity of <75,000 tonnes per annum.
Furthermore, there is an in-vessel/rotary composting facility, along with an open
windrow composting facility at Dimmer Landfill near Castle Cary, which accepts
35,000 tonnes and 15,000 tonnes per annum; however, these facilities are to close
by 2014.
c) Other Recovery
i. Energy from Waste (EfW)
8.2.13
There is an anaerobic digestion plant operating in Cannington which has an annual
capacity of <20,000 tonnes. It may be possible for this facility to accept food waste
from the HPC development.
8.2.14
Furthermore, there are proposals for a mechanical biological treatment (MBT) and
anaerobic digestion facility to be constructed to the north-east of Walpole Landfill,
Somerset. If this is developed, then the facility will be operational by 2014 and would
provide treatment of segregated organic waste to recover energy and compost from
waste that currently goes to landfill. Waste that could be accepted includes
vegetation and food.
8.2.15
The closest EfW facility able to accept significant volumes of waste is located at
Heathrow Airport, approximately 140 miles from Hinkley Point.
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d) Disposal
i. Landfill
8.2.16
A suitably located landfill, which accepts construction and demolition waste is
Walpole Landfill, operated by Viridor and situated close to Junction 23 of the M5,
which is approximately 15 miles from the main HPC site. This landfill has a permitted
input of up to 446,350 tonnes per annum.
8.2.17
There are four other landfills located within Somerset, which would be suitable for
disposal of construction and demolition type waste, as listed below in Table 8.3.
However, these landfills are less desirable than Walpole Landfill as they have lower
capacities and are located further away from the HPC sites (see Section 9).
Table 8.3: Other Landfills located within Somerset
Name
Operator
Dimmer Landfill
Viridor
42
150,000
Unknown
Lime Kiln Hill Quarry Landfill
Western Skip Hire
Ltd
45
52,000
Unknown
Westcombe Waste
Ltd
27
25,000
2017
Whiteball Landfill
Whiteball Landfill
Ltd
32
25,000
2015
Distance
from HPC
Development
Site (miles)
Capacity
(tonnes
p/a)
Proposed Date
of Closure
8.3
Regional Facilities
8.3.1
In view of the restricted capacity of construction and demolition waste which can be
recycled within Somerset each year, a review of regional facilities is given below.
Notably, Bristol has two ports (Avonmouth and Royal Portbury Dock) and Cardiff has
a port which could be reached by barge from Combwich Wharf. Discussions with the
EA has revealed that facilities within surrounding counties also comprise relatively
small scale MRF’s not capable of accepting vast quantities of construction/demolition
waste. However, there is a good network of small to medium sized waste transfer
plants, and treatment sites.
b) Dorset
8.3.2
In Poole, Dorset, Commercial Recycling Ltd operate MRF’s which can accept up to
175,000 and 25,000 tonnes of waste per annum respectively. Also in Poole, New
Earth Solutions operate a Mechanical Biological Treatment (MBT) facility which can
accept 50,000 tonnes of household wastes each year.
c) Bristol/Avonmouth
8.3.3
62
There are various MRF’s within Bristol and Avonmouth which can accept construction
and demolition waste, although none of these can accept significant quantities of
waste.
8.3.4
New Earth Solutions has recently opened a 200,000 tonnes per annum MBT facility
in Avonmouth, capable of recycling plastic, metals and biological waste. Viridor has
also been given consent to construct a MRF and EfW facility in Avonmouth, which
would separate 150,000 tonnes of recyclable materials from other waste each year.
8.3.5
Viridor has consent to construct an EfW facility at the proposed MRF in Avonmouth,
which would treat up to 350,000 tonnes of residual waste a year.
8.3.6
A landfill which accepts hazardous waste in Bristol is Kingweston Landfill.
d) Cardiff
8.3.7
In Cardiff, Biffa Waste Management Ltd operates a MRF which is able to accept
150,000 tonnes of waste per annum. There are various facilities which are able to
recycle metal, including European Metal Recycling which accepts up to 1,000,000
tonnes of metal per year and Celsa Manufacturing UK Ltd, which can accept
<500,000 tonnes of metal (steel) per year. However, as the majority of waste from
the HPC development site and the off-site associated developments will comprise
construction and demolition waste, these facilities will be of limited use to the project.
In Newport, Sims Group operates the Newport Recycling Centre, which can recycle
up to 250,000 tonnes of WEEE and plastics each year.
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64
9.
WASTE OPTIONS APPRAISAL
9.1
Introduction
9.1.1
This exercise will identify the most competitive and sustainable solution for the
preferred facilities and the route for disposal. Typically, distances between the point
of waste generation and its final destination are significant factors to be considered
when deciding upon which waste management facilities to use. There needs to be a
degree of certainty in the availability of disposal routes.
9.1.2
However, it is proposed for there to be no undue burden upon existing waste
infrastructure as a result of the proposed developments. Where possible, excavated
soils will be re-used on the site of origin during cut and fill operations or
reinstatement. If it is not possible to directly re-use soils on-site, then these will be
re-used on a nearby development, or transported to a MRF. Notably, the greatest
volumes of waste will arise from the decommissioning of HPC power station (in
approximately 60 years time) and the post-operational phase of the associated
development sites (in approximately nine years time).
9.2
Waste Transportation Options
a) Temporary Jetty
9.2.1
The temporary jetty at the main HPC development site will be removed following
construction of HPC power station. The jetty has been designed for the importation
of construction materials, mainly cement products. Imported materials would be offloaded from the barge using an extendable arm. It may be possible for containerised
materials, such as wastes, to be loaded onto the barge via a mobile crane, however,
this will be timing dependent as the importation of materials would take priority.
Furthermore, space for storage of waste materials prior to loading would be restricted
and the design of the jetty does not allow for the export of containerised waste.
9.2.2
It should be noted that, where possible, site-won material will be used in place of
imported aggregates, although this would be dependent upon the quality, quantity
and type of aggregate produced and will only be determined once site
works commence.
b) Barge
9.2.3
Rather than transporting waste by road to the Bristol, Avonmouth and Cardiff areas, it
may be preferable to do so via barges leaving from Combwich Wharf or the jetty, with
the benefit of reducing traffic volumes on the roads to these more distant locations.
Following discussions with SCC, the use of barges to transport waste is actively
encouraged, due to the sustainable benefits. As such, the contractor in charge of
waste management will be encouraged to achieve this if possible. However,
commercial considerations must be taken into account and this could preclude local
markets. Notably, this would result in Combwich Wharf laydown and the jetty being
classed as Waste Transfer Stations.
65
9.2.4
According to Figure 7.2, the majority of construction waste will be produced between
2011 and 2014. However, the strategic programme of works (Figure 7.1) indicates
that Combwich Wharf will not be fully refurbished until the beginning of 2014, with
Combwich Laydown not complete until early 2015. The laydown area is essential for
the storage/stockpiling of waste materials prior to be loaded onto the barges. As
such, the option to transport earthworks and construction wastes from the
construction of the associated development sites by barge will be restricted until the
laydown area is operational.
9.2.5
In terms of the whole project, the greatest waste volumes would be produced from
the post-operational phases of the associated developments around 2020, while
Combwich Laydown is proposed to be reinstated in mid-2021, after the majority of
other associated developments have completed their post-operational phase.
However, the storage of significant quantities of out-going waste at the laydown
would be restricted, as the main purpose of the laydown is to facilitate the
construction of the HPC development site; hence it is unlikely that there would be
sufficient space for this.
9.2.6
The surrounding transport network is not considered suitable for bringing material
back from the off-site associated developments and when the laydown is at capacity,
it may result in trucks idling on the surrounding roads, resulting in traffic problems.
Essentially, wastes produced outside of the HPC development site should be sent to
facilities heading away from Combwich Wharf, as to not contribute to traffic volumes
in the area. As such, the greatest opportunity to transport wastes by barge from
Combwich Wharf would arise from the post-operational phase of Combwich Wharf
Laydown itself.
9.2.7
Notably, the schedule for removing waste by barge would be restricted by the tides,
with arrival and departure manoeuvres only possible during high tide. The AILs and
other bulk construction goods to be delivered by barge will arrive at irregular
intervals, hence it may take up to three tidal cycles for AILs to arrive, unload and
depart. During these periods, an alternative method of disposal will be required (e.g.
via road). In addition, barge movements would be restricted during certain adverse
weather conditions.
9.2.8
Due to the uncertainties of transporting waste by barge, this option is considered to
be commercially unviable for the contractor.
c) Road
9.2.9
66
The road leading out from the HPC development site is a ‘C’ road, which is met by a
network of ‘A’ roads that lead to main arterial roads including the M5 motorway. In
the initial construction phases, these roads will be subject to large volumes of
construction related traffic, including vehicles transporting waste to surrounding
MRF’s. As such, wastes produced at the associated development sites should be
sent to facilities in close proximity, but preferably not in the direction of the HPC
development site, as to not further contribute to traffic volumes in that area. Notably,
once the Cannington Bypass is operational (late 2014), traffic volumes will be
reduced on the ‘A’ roads in and around the village of Cannington, lessening the
burden on local communities. Further details of the road network infrastructure are
given in the Freight Management Strategy and Transport Assessment.
9.2.10
The railway infrastructure surrounding Hinkley Point is considered to be of limited use
to the project. There is a small railhead at Bridgwater; however, this may limit the
capacity for expansion due to its location within a residential area. At Taunton, there
is a stabling area, but no freight handling facilities. Approximately 12km to the west
of the HPC development site, a privately owned railway line exists with a plant at
Williton, however, third party ownership may cause access constraints, etc. Further
detail of the rail network infrastructure is given in the Freight Management Strategy.
9.3
Waste Facility Options
a) Preparation for Re-use
i. Direct to Market
9.3.1
Where possible, materials of value should be sold direct to local market for re-use
generally in its original manufactured state (e.g. scrap metal, aggregate). The use of
NISP could assist in the identification of companies/sites that may require large
quantities of construction and demolition wastes, for example, large scale housing
developments. Notably, Bridgwater is to undergo regeneration, therefore there may
be opportunities for re-use of materials from those developments, as shown in
Table 8.1.
ii. Recycling
9.3.2
There are not any large scale MRF’s which can accept construction and demolition
waste within Somerset or within the surrounding counties of Dorset, Wiltshire, Devon,
Glamorgan and Gloucestershire. However, there is a network of small to medium
sized waste transfer plants, treatment sites which can accept such wastes.
iii. General Waste from the Accommodation Campuses
9.3.3
There are two options for collection of general wastes from the accommodation
campuses. This is through SWP or through a commercial contractor. Should
collection through SWP be the preferred option, then consultation with SWP would
be necessary to enable them to prepare accordingly. Should commercial contractors
be the preferred option, then this may place EDF Energy in a better position to vet
the staff from a security stand point as part of a collection contract, than they would if
the service was to be provided by the local waste collection authority.
9.3.4
Commercial waste collections tend not to be as prescriptive as the local waste
collection service as they have to react to a greater range of constraints from
customers. For instance, domestic waste is relatively generic and will typically
contain a mixture of plastic, paper, food and cardboard, whereas a commercial outlet
may predominantly produce specific waste materials such as glass or paper.
Quantities of materials for commercial properties would also vary greatly and there
may be the need for larger containers than would typically hold domestic wastes.
67
b) Other Recovery
i.
Energy from Waste (EfW)
9.3.5
A review of existing waste infrastructure in Somerset and the surrounding area has
revealed there to be no EfW facilities suitable for accepting large volumes of
construction related wastes. At present, the closest EfW facility able to accept
significant volumes of waste is located at Heathrow Airport, approximately 140 miles
from Hinkley Point. Although this facility is a significant distance from Somerset, in
terms of the waste hierarchy, this option is preferable over disposal at landfill.
However, it is unlikely that waste produced from the various Hinkley developments
will have calorific values great enough to be make incineration worthwhile from an
energy recovery perspective. General wastes, which have higher calorific values to
construction/demolition type wastes, will be dealt with by the contractor employed
and depending on their policy and the level of segregation, may involve recovery at
local anaerobic digestion facilities.
9.3.6
Consent has been granted to construct an EfW facility in Avonmouth, which would
treat up to 350,000 tonnes of residual waste a year. Consequently, this facility may
be available for use as part of the operational and decommissioning phases of the
developments. However, at this stage, it is not feasible to include this facility in this
waste management strategy.
ii. Anaerobic Digestion/Composting
9.3.7
It is preferential, that where possible, food waste produced during the construction,
operational and post-operational/decommissioning phases are sent to an anaerobic
digestion plant or for composting, along with vegetation stripped as part of the site
clearance works which cannot be re-used on-site. There is currently an anaerobic
digestion plant operating in Cannington which has an annual capacity of <20,000
tonnes, which may be able to accept such waste. In addition, there is a composting
and wood shredding facility at Walpole Landfill, approximately 1km from Junction 23
of the M5 which has a capacity of <75,000 tonnes per annum.
9.3.8
Planning permission has been granted for a mechanical biological treatment (MBT)
and anaerobic digestion facility to be constructed to the north-east of Walpole
Landfill, Somerset. Assuming that this facility will be developed, it will be operational
around 2014 and would provide treatment of segregated organic waste to recover
energy and compost from waste. However, 2014 would be too late for vegetation
stripped from site clearance to be sent to this facility.
c) Disposal
9.3.9
68
Disposal is considered to be waste management option of last resort, as reflected in
EDF Energy’s Key Performance Indicators (Section 11). Wastes which are most
likely to be sent to landfill are soils that are grossly contaminated and not suitable for
treatment (e.g. remedial soils from Bridgwater A), and a proportion of general wastes
which will be collected from the accommodation campuses. Based on the proximity
principle and permitted tonnage, Walpole Landfill situated close to Junction 23 of the
M5 is considered to be the most suitable landfill for disposal of wastes from the
various developments (see Section 7).
10. WASTE PLAN
10.1
Introduction
10.1.1
This section of the document is an implementation strategy and practical guide
detailing the methods by which waste will be managed on the HPC development site
and the off-site associated developments during the earthworks/construction,
operational and post-operational/decommissioning phases. The preferred options for
waste management are discussed in order of these three phases below. Notably, as
the project evolves and further information becomes available, this Waste Plan will
be updated accordingly.
a) Management
10.1.2
At the time of waste generation EDF Energy will appoint a contractor who will
consider all types of waste facilities and transport options. All proposals will be
approved by SCC and the EA. EDF Energy proposes to employ a contractor to take
responsibility for all waste management activities. By centralising the management
of waste through the employment of a competent and qualified contractor, it is
anticipated that compliance with waste legislation (e.g. Duty of Care) will be relatively
straight forward. The waste management contractor will maintain a waste compound
at each site where wastes will be segregated. EDF Energy will ensure that the
contractor complies with all sustainability objectives (see Section 11 for EDF
Energy’s sustainability and waste targets).
b) Waste Tracking and Reporting
10.1.3
In order to reduce the environmental impact of waste arisings during the construction
phase of the HPC development site and the off-site associated developments, a
SWMP will be implemented at each site. The contractor will be responsible for its
implementation, maintenance and management. The contractor would also ensure
that:
• all Duty of Care documentation is kept in a dedicated file and be made available
for viewing as required;
• all disposal documentation (e.g. transfer notes and consignment notes) are clearly
marked with the time and date of collection. In addition, the final destination of the
waste, a detailed description of the waste type and if appropriate the European
Waste Code (EWC) would also be recorded on the document;
• a quantitative and qualitative estimate of worksite waste produced during
construction is kept; and
• where necessary, the requirements for reporting under the Hazardous Waste
Regulations 2005 are met (e.g. the hazard rating).
10.1.4
In order to store and then re-use materials on the site of origin, and in line with
Environment Agency guidance, a Design Statement will be produced to demonstrate
that the material is not a waste or has ceased to be waste. This would comprise a
Materials Management Plan (MMP) and a Verification Plan/Report. Essentially, a
69
purpose for the use of the excavated material must be demonstrated for it to not be
considered as waste. The MMP and SWMP ensure that the most suitable use of
waste materials and methods of disposal are employed. Furthermore, in order to reuse contaminated soils on the site of origin (e.g. Bridgwater A and C), this should be
undertaking in line with the CL:AIRE protocol.
10.1.5
A Verification Plan needs to be included in the Design Statement. This plan must
identify how the placement of materials is to be recorded and the quantity of material
to be used. It would contain a statement on how the use of materials relates to the
remediation or design objectives. A Verification Report must also be produced to act
as an audit trail to show that materials and wastes have gone to the correct places.
10.1.6
There may also be an opportunity to directly re-use clean excavated materials on
other development sites (e.g. surplus soils from Cannington Bypass at Combwich
Laydown), although at this would be dependant on various factors such as timings
and the quality of materials. This may require an environmental permit.
10.2
Construction Phase
10.2.1
The proposed waste management methods are discussed below in order of the
waste hierarchy.
a) Prevention
i. Procurement
10.2.2
Consideration will be given to the procurement of materials to minimise overordering, thereby reducing waste. Careful procurement will also reduce waste
arisings associated with future removal/reinstatement of the facilities. Notably, due to
the high standards required for nuclear power stations, there will generally be more
waste than for standard developments, however, adoption of best practice
construction methods will reduce the amount of waste produced.
10.2.3
All the main equipment for the UK EPR reactor units will be constructed off-site and
the majority of the accommodation campus buildings will be modular. Consequently,
these materials will be delivered as AILs to site, therefore reducing the production of
construction waste (e.g. from off-cuts).
10.2.4
As the project evolves, further analysis of the potential for efficient use of materials
will be undertaken by the waste management contractor.
b) Preparing for Re-use
i. Excavated Materials
10.2.5
70
It is proposed for excavated soils from pre-construction activities, such as levelling, to
be re-used on-site (where feasible). Only soils which are considered to be chemically
and geotechnically suitable will be re-used. The vegetation will be stripped and the
topsoil, subsoil and natural ground will be separated. The re-use of soils on-site is
not only sustainable, but assists in minimising construction traffic on the road.
Potential re-use opportunities include:
• re-use of the topsoil, subsoil and vegetation for landscape restoration;
• re-use of deeper subsoil and rock to construct the main platform or bunding;
• use of excavated natural bedrock (where appropriate); and
• recovery of secondary aggregates from excavated Made Ground.
10.2.6
The proposed cut and fill operation ensures that there will be no surplus earthworks
material at the HPC Development Site, i.e. all excavated soils will be re-used on-site
to create the construction and permanent development platforms and within the final
landscape restoration proposals. As discussed in Section 4, there will be some
surplus soil from the construction of Cannington Bypass, which will be made
available if required to the local market. In the event of encountering contaminated
soils during excavation activities, it is anticipated that these will be segregated on-site
for safe re-use; subject to the appropriate controls being implemented from the MMP
and CL:AIRE protocol.
10.2.7
It may be possible to retain some of the stripped vegetation on site for re-use in
landscaping.
c) Recycling
10.2.8
It is proposed for a waste management consolidation centre (compound) to be
constructed at each development site for the short-term storage of waste during the
construction phase, whereby:
• waste material would only be held at the compound short-term;
• large quantities of mixed dry recyclable material would be separated into their
main waste streams (e.g. metal, concrete, wood, brick, plasterboard and
hazardous waste) prior to being re-used on-site, or transported off-site to be
recycled, treated, recovered or disposed of;
• once segregated, components would be baled where possible (e.g. cardboard
packaging), prior to sending to reprocessors to minimise volumes and hence
reduce vehicle movements; and
• hazardous waste would also be segregated and stored safely on-site, prior to
being removed from site for treatment or disposal at a specialist hazardous waste
facility. Tanks containing hydrocarbon fuels and other chemicals would have their
contents emptied and removed from site by a specialist contractor.
10.2.9
Following segregation, waste generated on-site would be sent to third party waste
management facilities. The treatment or recovery of wastes will not take place on the
site itself, due to the lack of available space (with the exception of remedial wastes
from Bridgwater A and C). If it is not feasible to directly re-use soils either on the site
of origin or off-site, then these will be transported off-site to a MRF, or if
contaminated, sent to an appropriate soil treatment facility.
71
d) Other Recovery
10.2.10 Where practicable, stripped vegetation from the HPC Development Site and the offsite associated developments which cannot be re-used on-site during restoration, will
be sent to a composting facility or anaerobic digestion plant, and it is anticipated that
food waste would be sent to these facilities also.
e) Disposal
10.2.11 The disposal of waste to landfill would only be considered as an option of last resort.
The waste producer would ensure that all waste is being disposed of in a safe
manner.
All waste carriers and waste management sites used for the
recovery/disposal of waste from the subject sites must be appropriately licensed.
10.2.12 Where necessary, it is proposed for sewage at the off-site associated developments
to be collected and sent to a foul sewer. At HPC, sewage will be tertiary treated prior
to being discharged via the construction outfall to the foreshore.
10.3
Operational Phase
a) General Waste from the Accommodation Campuses
10.3.1
The use of commercial contractors is considered to be the most suitable option for
the collection of wastes from the campuses. It is possible that the Local Authority
would not wish to collect the wastes from these facilities. Although the waste could
be defined as household wastes at present, it is likely that there would be a charge
for the service and following a review of the Controlled Waste Regulations 1992, this
type of waste might not be defined as household in the future.
10.3.2
Each occupant within the development will be made aware of their responsibilities
with regard to general, bulky and recyclable wastes in their workers contract or
apartment lease. Each apartment will be provided with two containers, colour-coded
to suit the scheme to be implemented across the development. Food waste will not
be separated out in the apartments as the bulk of the food waste will be collected at
the canteen.
10.3.3
To minimise any odour problems that waste, the waste will not be allowed to remain
uncollected from waste storage areas for more than seven days. In addition, all
waste rooms will require a water supply and positive drainage to a foul sewer so they
can be washed down periodically. A further specific area will need to be set aside
elsewhere in the development for the washing out of mobile containers.
10.3.4
The site management team will be responsible for ensuring appropriate separation of
the recyclable element of the wastes and for ensuring that the wastes are
appropriately stored ready for collection.
10.3.5
Specific mobile containers will be provided either by EDF Energy if using the Local
Authority service or by the commercial contractor using a different colour to those
used for conventional refuse for the collection of separated dry recyclables.
72
10.3.6
Commercial waste must be kept separate from the domestic wastes and separate
areas have been provided for commercial waste storage. The management team will
encourage commercial users to adopt practices in accordance with appropriate
environmental management systems.
10.3.7
There will not be significant bulky waste generation as the apartments will be fully
furnished. The most likely bulky waste removal will be identified by the facilities
management team. However, where the residents need this service they will be
expected to participate in the council service with respect to bulky wastes, which
includes pre-booked collections, or alternatively the residents could deliver their
wastes to the nearest recycling centre.
10.3.8
If waste is deposited in communal areas then it will be necessary for the facilities
management team to deal with it swiftly, moving the wastes to a storage area.
10.4
Post-Operational/Decommissioning Phases
10.4.1
Anticipated waste types arising from the post-operational/decommissioning phases
will be similar to those produced from construction. As such, the same procedures
from Section 10.2 would be applied. Notably, waste arising from demolition would
not be suitable for re-use on a greenfield site and would therefore be sold direct to
market, sent to a MRF for recycling, or as a last resort, to landfill for disposal. In
order to assist with material reclamation (e.g. to sell direct to market), demolition
contractors will undertake a ‘soft strip’ prior to carrying out machine demolition.
Where sites are to be restored to greenfield status, topsoil and subsoil stripped
during the initial earthworks and stored on-site, will be available for re-use.
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74
11. KEY PERFORMANCE INDICATORS
11.1
Targets
11.1.1
EDF Energy is aiming to achieve zero waste to landfill by 2020, across all of its
projects. Hence, through the application of the waste hierarchy it will be possible to
strive towards this target.
11.1.2
In terms of construction and demolition related waste, EDF Energy has set a target of
re-using, recycling or recovering at least 90% of its earthworks, construction and
demolition related waste (including soil but excluding hazardous waste). This would
include a target of re-using, as far as practicable, 100% of excavated clean soils
within the development.
11.1.3
Consequently, in order to reach this main target, the following objectives are set:
• prevent and reduce the volumes of waste produced through the application of the
waste hierarchy;
• maximise re-use and recycling within the wider development;
• maximise re-use and recycling outside of the HPC Project; and
• minimise the impact upon the existing waste management infrastructure.
11.1.4
The main ways to achieve these objectives are to:
• ensure construction methods follow best practice;
• reduce vehicle movements on the road through two way trips and barges;
• re-use materials on the associated developments during the post-operational
phase; and
• encourage re-use of material through a waste inventory.
11.1.5
It is proposed for there to be a review stage prior to the post-operational phases of
the associated developments (c.2020) and the decommissioning phase of HPC
power station. This pause will allow the proposed waste management methods to be
reassessed, taking into consideration any new management methods or waste
facilities becoming available to the project from the time of this document drafting.
Consequently, an updated Waste Management Implementation Strategy will be
produced with new KPI’s included.
11.1.6
EDF Energy will ensure that the contractor complies with all sustainability objectives
and will enforce mechanisms for monitoring and checking achievement, with an aim
of annual improvement. Furthermore, all workers involved with the project will be
actively encouraged to recycle and this will be monitored accordingly.
75
76
12. SUMMARY
12.1
Summary
12.1.1
The key principle detailed throughout this strategy is that waste will be managed in
accordance with the waste hierarchy. This will be supported by the implementation
of the proximity principle, whereby waste would be managed as close as reasonably
practicable to the point of origin.
12.1.2
Essentially, it is intended for the production of waste to be prevented or minimised at
its source where possible. For example, during the site preparation phases, this will
be achieved through careful design of cut and fill operations to prevent material being
sent off-site where possible and the use of best practice construction techniques.
Notably, a cut and fill balance is anticipated across the majority of sites. Material will
be ordered with care and the use of modular units at some of the sites is proposed,
which will reduce the amount of off-cuts. Furthermore, following the operational
phase, modular units could be sold direct to local market for re-use, although this is
dependent upon changing construction standards over time.
12.1.3
Waste will be segregated and stored on-site within a dedicated compound pending
its onward transfer to a recovery facility or final destination. Generally, surplus soils
will be stored on the site of origin as landscape/noise/flood attenuation bunds
throughout the operational phase. This material will then be re-used on-site during
the post-operational phase. In terms of soils which cannot be re-used on the site or
origin, it maybe possible for these to be re-used on other development sites within
the broader Somerset region.
12.1.4
Any soil or construction/demolition material which cannot be re-used (e.g. sold direct
to market) could be sent to a MRF. Ideally, vegetation stripped during the site
preparation phase which cannot be retained on-site, would be sent to an anaerobic
digester plant/composting facility for recovery. Notably, it is unlikely that waste
produced from the various Hinkley developments will have calorific values great
enough to make incineration worthwhile from an energy recovery perspective.
12.1.5
Although it is the intention for waste to be managed in order of the waste hierarchy,
inevitably there will be some waste which will require disposal at landfill, for example,
radioactive wastes and remedial waste from Bridgwater A and Bridgwater C
Accommodation Campuses.
12.1.6
It is proposed for there to be no undue burden upon existing waste infrastructure as a
result of the proposed developments, which this strategy demonstrates through
proposals to prevent and reduce waste production where possible.
12.1.7
In total, approximately 1.5 million tonnes of waste is predicted to be produced for the
entire project. The main construction waste peak occurs during mid-2013, while
post-operational phase waste volumes peak in the latter part of 2021. Following the
operational phases and prior to the post-operational/decommissioning phases of the
associated developments and HPC power station, there will be a review stage,
whereby the proposed waste management methods would be reassessed. This
77
would take into account any new waste management methods or facilities available
to the project from the time of this document drafting.
12.1.8
78
EDF Energy will ensure that contractors comply with all sustainability objectives,
including the re-use, recycling or recovering at least 90% of its earthworks,
construction and demolition related waste (including soil but excluding hazardous
waste), and will enforce mechanisms for monitoring and checking achievement.
edfenergy.com
EDF Energy plc. Registered in England and Wales. Registered No. 2366852.
Registered Office: 40 Grosvenor Place, Victoria, London, SW1X 7E

Hinkley Point C Development Consent Order Application

Transcription

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