Islington Head House

Final Green Procurement Plan

Document: EL-HAL-02428-21233-ISL-ENV-B-IN

London Cable Replacement Tunnels

Costain Group Ltd

May 2014

Islington Head House

Final Green Procurement Plan

London Cable Replacement Tunnels

Costain Group Ltd

Halcrow Group Limited Elms House, 43 Brook Green, London W6 7EF tel +44 20 3479 8000 fax +44 20 3479 8001 halcrow.com

Halcrow Group Limited has prepared this report in accordance with the instructions of the client, for the client’s sole and specific use. Any other persons who use any information contained herein do so at their own risk.

Islington – Final Green Procurement Plan May 2014

Document history

Final Green Procurement Plan – Islington Head House London Cable Replacement Tunnels Costain Group Ltd

This document has been issued and amended as follows:

Revision Date Description Created by Verified by Approved by

A 29.05.2014 Documentation to Tom Blackman Kripa Shaun Firth support discharge of Dwarakanath Islington Council Planning Condition. Instruction number 0278.

B 11.08.2014 Status change to Tom Blackman Kripa Shaun Firth Final Dwarakanath

Islington – Final Green Procurement Plan May 2014

Contents

1. Introduction ...... 3 1. 1 Purpose ...... 3 1. 2 Overview ...... 3 2. Objectives ...... 5 3. Materials Inventory and Sustainable Design Measures...... 6 4. Targets and performance indicators ...... 8 5. Actions & procedures ...... 9

Islington – Final Green Procurement Plan May 2014

1. Introduction

This document is prepared according to the Costain instructions number 0278 to prepare documentation in support of discharge of planning conditions that was included in the Planning decision notice for application number P2012/0424/FUL. The proposed development is the construction of an electricity utility head house building, required in connection with National Grid cable tunnel works.

Another document, the Green Performance Plan (EC-HAL-02317-21233-ISL-ENV) has been prepared along with this report. Both reports will form part of the documentation that will support in discharging the planning condition.

1. 1 Purpose The purpose of this Green Procurement Plan is to comply with one of the planning conditions set out in the Planning Decision Notice for the construction of an electricity utility head house building required in connection with National Grid cable tunnel works (P2012/0424/FUL). The condition to which this documentation relates is set out below:

The development shall be carried out strictl y in accordance with the details so approved and shall be maintained as such thereafter. REASON: To ensure that sustainable management of water in accordance with

policies: 5.13 and 5.15 of the London Plan 2011, policy Env39 of the Islington Unitary Development Plan 2002 and policies: CS10C and E and CS15G of the Islington Core Strategy 2011. [Core Strategy ‘Spatial Policies’ CS1-CS8 may be relevant] and the Environmental Design SPD. MATERIALS (DETAILS): A green performance and procurement plan for all materials shall be submitted to and approved in writing by the Local Planning Authority prior to any superstructure work commencing on site.

This Green Procurement Plan is prepared in accordance with guidance set out in the Mayor’s Green Procurement Code.

1. 2 Overview The purpose of the London Cable Replacement Tunnels project is to install a series of replacement National Grid high voltage cable tunnels at strategic locations throughout London. The tunnels extend from Willesden in the west, to Hackney in the east and Wimbledon in the south. The tunnels will house 400 kV electricity supply cables linking National Grid Electricity Transmission plc (National Grid) existing substations at Hackney and St John’s Wood, and will also make provision for possible future connections.

The scheme comprises three main tunnels: • Hackney to St John’s Wood (approximately 12.4km long) at 4m nominal internal diameter

Islington – Final Green Procurement Plan May 2014 • St John’s Wood to Willesden (approximately 7.1km long) at 3m nominal internal diameter. • Wimbledon to Kensal Green (approximately 12.4km long) at 3m nominal internal diameter. In addition to the tunnels, proposals include the construction of 13 head-houses (some off line) above the tunnel route to provide access and ventilation. The scope also includes the 14 shafts of various diameters that form part of the temporary or permanent works. The organisations involved in the project are:

• National Grid will be the operator of the Head House • UK Power Networks (UKPN) own the site and will be constructing a new Switch House adjacent (to the north) to the proposed head house. • Costain will construct the head house. • CH2MHill (Halcrow) - design team leaders and are providing structural engineering, tunnel engineering design, environmental and planning services for the head house design. • Fereday Pollard - Architect for the head house. • Capita - building services designers for the head house. The designers for the project are CH2MHill (Halcrow), advising on detailed design and material specification for the Head House components, and Costain will construct the structure, and appointed as the construction contractor by the client- National Grid. This procurement plan has been prepared collaboratively by CH2MHill and Costain, and therefore reflects our own environmental policies and procurement practices.

Islington – Final Green Procurement Plan May 2014 2. Objectives

Both CH2MHill and Costain have established Group level environmental, procurement and ethical policies that have guided setting the objectives of this Green Procurement Plan. Costain’s Responsible Procurement Policy states their commitment to manage economic, environmental and social issues arising in their supply chain. Furthermore it outlines how they will engage with their supply chain and internal procurement divisions to deliver the objectives of the policy. CH2MHill’s Supply Chain Policy, Health, Safety and Environment Policy and Sustainability Policies clearly sets out commitment to the protection of environmental resources, engagement with likeminded suppliers, health and safety of the workforce and upholding integrity and human rights in places of operation.

CH2MHill conducts a Direct Sustainability Procurement approach to choose its suppliers under two segments- for provision of services by bidders and sub-contractors and for the selection of sustainable products. The process is conducted in a structured manner through appropriate evaluation tools at the bidding process using the CH2MHill Materials and Sub Contractor Management System (CMAS).

The objectives for this Green Procurement Plan, based on Costain and CH2MHill’s objectives are: • To comply with all relevant legislation; • To ensure that the supply chain’s environmental and social credentials are considered in the supply chain evaluation process; • Consider where possible whole life cost of goods including source, durability, adaptability, possibilities for re-use, recyclability, energy efficiency, packaging and resulting waste disposal issues; • Educate and train the procurement and commercial teams to deliver these stated objectives, including the development of an agreed action plan with an identified action owner; • Raise awareness of the Companies commitment and these objectives to all staff, supply chain and stakeholders

Islington – Final Green Procurement Plan May 2014 3. Materials Inventory and Sustainable Design Measures This section provides an inventory of materials indicated in the design drawings (32-HAL-00144- 21233-ISL-ARC - General Arrangement Ground Floor Level and 32-HAL-00145-21233-ISL- ARC - General Arrangement Mezzanine Floor Level, 32-HAL-00146, 147, 148 and 149) and associated drawings (78-HAL-00864-21233-ISL-CIV).

Table 1: Inventory of construction materials proposed for building at the Islington Head House Key Building Components Building Specified Sustainable Design Measure component material Masonry 100mm thick yellow brick; Costain SHE Material Procurement 215mm dense concrete document (attached in Appendix A) block work; 140mm encourages their procurement process to medium concrete block specify materials such as block work with work high recycled content. Stainless steel cavity wall ties As the Head house will not be inhabited, no space heating provision has been made, instead insulation techniques are being used. Internal Precast concrete Prefabricated material will reduce material lintel/cover slab waste (by comparison to insitu). Costain Material Procurement Document encourages the use of recycled content in cement, such as PFA. Cladding -Wall Kingspan composite Kingspan Ecosafe Insulated panel has a BRE insulated structure or Green Guide Rating A+ equivalent Cladding - roof Kalzip i nsulated standing Material is primarily aluminium, which is 95% seam roofing system recyclable. Kalzip is typically a low U-Value insulation system which will help insulate interiors of the head house. Miscellaneous Building Components Linings Board lining with 2 hour fire To adhere to Health & Safety standards separation Doors - External Steel works with 2 hour fire No specific sustainable design measure and Internal separation Door National Grid Spec, No specific sustainable design measure Ironmongery generally stainless steel Guard rail Mild galvanised steel or No specific sustainable design measure aluminium Louvres Generally aluminium, profile Aluminium is 95% recyclable. to be developed @ Stage F Surface finishes Floor tiles and paint All paint will be of low VOC content Stainless steel Stainless steel cavity wall ties As the Head house will not be inhabited, no ties space heating provision has been made, instead insulation techniques are being used. Bird Box and Schwegler 1mr Avianex Bird Both boxe s are of wood -concrete material to Bumble Bee box Box provide nesting space for birds and bee- Schwegler Bumble Bee box contributing to enhance biodiversity.

Islington – Final Green Procurement Plan May 2014 Building Specified material Sustainable Design Measure component Timber Timber is not specified in Costain Group SHE Material Procurement the materials list for the document states that they will promote the submitted design, but use of certified timber, and seek to use it measures will be followed where they are able to. where applicable. Source: Building specification (Architectural) @ Stage E (May 2013 - BD -HAL -00247 -21233 -ISL - ARC -B-R2).

Islington – Final Green Procurement Plan May 2014

4. Targets and performance indicators From the list of materials in table 1 above, products for the following components have already been specified implying there will be limited influence in the procurement decision making process. It is worth noting that the products identified already achieve high sustainability ratings:

- Wall cladding- Kingspan cladding material has secured Green Guide Rating A+ and the company has a commitment to recycle cladding material after decommissioning of the project. - Roof cladding- Kalzip- the material comprises of aluminium, which is currently 95% recyclable. - Lintel and cover slab- Design specification requires this building component to be pre- cast concrete, implying less material wastage (and reduced emissions related to materials transport).

Table 2: KPIs and Targets for Construction material procurement Key Performance Industry Target Project Construction Indicator Target % recycled content in 10 > 10 Masonry (% of mass) % recycled content in 20 80 concrete (% of mass) % timber used in the 100 100 construction of temporary work are sourced from FSC Industry target derived from WRAP reference guide Choosing Construction Products GB4.1

Table 3: Key building component suppliers Product Supplier compliance with responsible Materials Detail Supplier sourcing principles Clay facing Environmental Performance declaration bricks BS Lee Marley http://www.leemarley.com/about/environmental- Masonry EN 771-1 Brickwork performance/ Statement of commitment Concrete facing block work BS ISO 14001 Masonry EN771-3 Hanson UK BES 6001 (very good) Lintel and Buchan slab concrete Concrete (precast) Solutions ISO 14001 Structural Bourne steel and construction Steel cladding Engineering ISO 14001

The targets may be monitored and recorded during the construction phase to track performance. The following section sets out the action plan to the implementation of a sustainable procurement plan for the Islington Head House construction.

Islington – Final Green Procurement Plan May 2014

5. Actions & procedures

In order to achieve the objectives set out in section 2 and to monitor progress against the list of targets set in section 4, it will be imperative to identify an action plan to address the following items: Implementation activities Proposed mode of Proposed action owner implementation Training and dissemination Quantity Surveyors to Costain Environment of information on undertake Costain’s online Manager sustainable procurement Sustainable procurement training and pass test at end of training. KPI monitoring and Review of construction Costain Environment accountability purchase order for supply of Manager key materials Materials usability post Inclusion of material Costain Quality Manager decommissioning disposal options in operation and maintenance manual during handover of completed structure

A record of the training events, supplier selection mode and performance monitoring will be maintained by Costain throughout the construction phase for transparency and audit purposes.

Islington – Final Green Procurement Plan May 2014

Appendices

Islington – Final Green Procurement Plan May 2014

APPENDIX A- Costain Sustainable Procurement Policy

Islington – Final Green Procurement Plan May 2014

APPENDIX B- Costain SHE Procurement Document

Safety, Health & Environment Section 4 – Do Work Procedures & Guidance SHE Material Procurement

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SHE Material Procurement

Issue/Revision Prepared By Reviewed By Approved By Issue Date 0 A Coumbe A Baldry/L Webb P H Fisher August 2007

1 A Baldry A O‟Shea P H Fisher June 2010

The information contained herein is the property of Costain Group and is provided on condition that it will not be reproduced, copied, lent or disclosed, directly or indirectly, nor used for any purpose other than that for which it was specifically furnished

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CONTENTS

1. Introduction ...... 3

2. Scope ...... 3

3. Responsibilities ...... 3

4. Definitions ...... 3

5. Tools ...... 3

6. Considerations ...... 3-4 6.1 During Design ...... 3 6.2 At Purchase of Materials ...... 4

7. List of Prohibited Materials (Mandatory “Black” List) ...... 4-6

8. List of Referable Materials (Advisory "Grey” List) ...... 6-7

9. List of Preferred Materials (Green List) ...... 7-10

10. Specific Procurement Requirements ...... 10 10.1 Recycled/Recovered Material ...... 10

11. References and Further Reading ...... 10

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1.0 Introduction

The aim of this document is to provide baseline materials data and an insight into the philosophy and intent of the Group with regard to material procurement. For further information on specific materials issues, contact a member of the SHE Department.

2.0 Scope

This document is a guidance document to be implemented by all operating sectors of the Group. Of particular significance are operations or elements of projects that source and purchase materials or those elements of the Group involved in the design of projects and the specification of materials.

3.0 Responsibilities

Those persons listed below have a responsibility to ensure that the considerations and guidance within this document are fully implemented:

Tender team Design team Procurement Department Project Manager Quantity Surveyor Regional SHE Advisor Project SHE Advisor / Project SHE Systems Co-ordinator

4.0 Definitions

Prohibited Materials (Mandatory “Black” List) - Materials and substances that are banned by the UK or European law. For list see paragraph 7.0.

Referable Materials (Advisory "Grey” List) - Materials and substances that, whilst not banned by legislation, are considered by Costain to be potentially hazardous or environmentally deleterious at one or more stages of their life cycle. For list of materials and substances see paragraph 8.0; the list includes supporting information indicating the rationale for appearing on this list. This list also includes guidance for some materials that should not be used in specific situations.

Preferred Materials (Green List) – Materials and substances that are considered by Costain to be preferable, due to their restricted environmental impact or environmental desirability. These materials and substances are outlined in paragraph 9.0 of this document.

5.0 Tools

CMSD-267 SHE Tender Checklist IBP „Supply Chain Management‟ IBP „Project Procurement‟

6.0 Considerations

6.1 During Design

Where a designer or client specifies a material/substance on the Mandatory (Black) or Advisory (Grey) lists, Costain should request that a suitable alternative is specified. Costain must not specify alternative materials/substances, unless it has been agreed that Costain will assume design responsibility; Work with the design team and the client and make them aware of these lists; Refer to the documents listed in paragraph 11 (References & Further Reading) of this guidance to identify suitable alternative materials as necessary; Consider reuse of the materials and use of recycled materials within the design and specification. ______Section 4 - SHE Material Procurement Page 3 June 2010

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6.2 At Purchase of Materials

Review the list below (Black, Grey and Green in Paragraphs 7, 8 and 9 respectively) prior to purchase to ensure that the best material is selected. Be aware of and apply any additional national or local legal requirements; Write the prohibited materials list into contractual arrangements with suppliers and subcontractors wherever practical. For all substances that are classified and labelled as potentially hazardous to health, a suitable and sufficient COSHH assessment must be completed by a competent person prior to any use of that substance or material. All importers of these substances and materials must ensure that the supplier provides material safety data sheets and any other relevant documentation. See the Health and Wellbeing section of this manual for additional information. Seek viable recycled or reused material alternatives as best practice and where specified in the contract. See requirements below for importing recycled materials. Ensure that, where practicable, green list substances are procured as a preferred option. Delivery of materials should be carefully considered to reduce, where possible, the number of deliveries required. Timing of deliveries is also important and should be considered with the local residents in mind. Out of hours deliveries should be avoided where possible and traffic management plans should be developed and communicated. Storage of materials should be suitably planned to avoid damage of materials due to plant and vehicle movements by providing enough space for manoeuvring or adverse weather conditions by adequately covering materials. Over-ordering should be avoided and material should be ordered just in time where practicable. Consideration should be given to the requirements of the SAVE IT campaign (see Waste & Materials Management section of this Manual).

7.0 List of Prohibited Materials (Mandatory “Black” List)

Suppliers and contractors must guarantee that the following materials will not be used on any Costain Group projects (unless in specific circumstances described below, where appropriate) and that the substances are not substantially present in products supplied to Costain Group.

In some cases, national or local legislation may prohibit the use of other materials or substances in specific circumstances not listed here. The requirements of all applicable legislation must be strictly adhered to at all times.

Asbestos or asbestos containing products These include white asbestos (chrysotile), brown asbestos (amosite) and blue asbestos (Crocidolite). Asbestos is a proven carcinogen and there is no known cure for asbestos related diseases.

Calcium Chloride admixtures in reinforced concrete The protective oxide film that forms over steel in concrete is not stable in concretes containing calcium chloride, and therefore the potential for corrosion exists. Appropriate limits for chloride ion sources are detailed in BS5328 and BS8110. Only admixtures with sufficiently low chloride content to meet these overall limits should be used in mixes in contact with steel or corrodible metal. This includes mortar in contact with metal wall ties.

CFCs, HCFCs, Halons etc Any product which consists of, contains or uses in its manufacture (e.g. extruded polystyrene using CFCs as a blowing agent) substances currently prohibited by the Montreal Protocol on substances that deplete the ozone layer. This does not preclude the use of substances to be phased out.

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High Alumina Cement (HAC) in structural elements The chemical resistance of HAC is reduced following conversion (crystallographic alteration) that occurs naturally with age or accelerated by increased temperature. Conversion products are also more susceptible to chemical attack.

Lead used in circumstances where prohibited by UK Legislation Lead is toxic and human ingestion can result in anaemia, digestion disorder and damage to the central nervous system. It is also a cumulative poison and prolonged low level exposure can result in low IQ behavioural disorders, hyperactivity in children and cardiovascular disease in soft water areas. This is particularly important in children where retarded development may arise.

The use of lead is therefore prohibited by legislation in specific circumstances such as for water pipes, lead lined tanks, lead-based solders and paints.

Lindane (gamma-HCH) Lindane is used as a wood treatment and as an insecticide spray and is considered to be carcinogenic, and to cause damage to the nervous system and hormone disruption. Its use is already banned in Sweden, Denmark, France and the Netherlands and this is currently under consideration in the UK.

Mundic Blocks and Mundic Concrete Mundic blocks and concrete are formed from contaminated aggregates from mining wastes. The structural strength is reduced to a friable and weak condition subject to certain ambient conditions.

Polychlorinated Biphenyls ( PCBs), Polychlorinated Terphenyls ( PCTs) PCBs and PCTs are a family of organochlorine chemicals used extensively as insulator in electrical equipment. They are considered to be carcinogenic. Their use and manufacture is now prohibited in the UK.

Pentachlorophenol or timber treated with Pentachlorophenol Pentachlorophenol is a manufactured chemical used as a biocide and wood preservative. Short term exposure to high concentrations or long term exposure to low concentrations can cause harm to the liver, kidneys, blood gastro intestines, immune and nervous system.

Tributyltin ( TBT) TBT is a family of chemicals including TBT oxide, TBT sulphide, TBT adiapate TBT methylacrylate TBT fluoride and TBT acetate. TBT is used as a fungicide and bactericide in underwater and anti fouling paints, as a water-repellent coating, antioxidant, preservative for wood, textiles leather and glass, as a curing agent and a corrosion inhibitor. It is a potent central nervous system toxin and skin irritant causing pruritis or itching, and exposure can cause nausea, cramps and vomiting.

Urea Formaldehyde Foam or other materials that may release formaldehyde at concentrations above limits set by HSE Urea Formaldehyde Foam is a cellular product, which has poor strength properties but good thermal properties. It is used in wall cavities to improve thermal insulation.

Building materials made with formaldehyde resins can emit formaldehyde gas (colourless and strong smelling) that may pose a hazard to human health. Formaldehyde is considered to be carcinogenic.

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Vermiculite (unless established as asbestos free) Vermiculite is the mineralogical name given to hydrated laminar magnesium-aluminium-iron silicates that resemble mica in appearance. It has been commonly used as an aggregate in lightweight concretes. Vermiculite is a dusty material and is associated with asbestos, which occurs as impurities in some vermiculite ore bodies. Use of vermiculite products is only permitted where it has been established that it is free from asbestos fibres.

8.0 List of Referable Materials (Advisory "Grey” List) The following materials and substances are not currently banned by legislation, but in the specific circumstances described, are considered to be potentially hazardous and/or environmentally deleterious or technically undesirable at one or more stages of their life cycle. This list includes certain materials and substances that should be avoided in undesirable circumstances but may be acceptable in other circumstances. These materials should not be used without guidance from the SHE Department.

Lead, or any other materials containing lead that may be ingested, inhaled or absorbed Lead is a naturally occurring substance that can affect almost every organ and system in the body. The most sensitive is the central nervous system, particularly in children. Lead also damages kidneys and the immune system. The effects are the same whether it is breathed or swallowed. Note: The use of lead is prohibited in certain specific circumstances. (See Mandatory List for details). Legal requirements must be strictly adhered to at all times. Where work may involve exposure of a person to lead, the nature and degree of exposure must be assessed. Users of lead should observe the recommended procedures of personal hygiene.

Man Made Mineral Fibre (MMF) or naturally occurring fibre with a thickness of 3 microns or less and between 5 and 200 microns in length, unless appropriately sealed to prevent migration Recent evidence suggests these materials (for example rock wool and slag wool) may be carcinogenic and pose a similar risk to human health as asbestos.

PVC (Polyvinyl Chloride) and other non-biodegradable plastics PVC has many applications in construction, but is considered environmentally deleterious in manufacture, and is hazardous when burnt. PVC is not considered to be a sustainable material as it is derived from fossil fuels and its poor recyclability requires it to be land filled where additives such as phthalates can leach out contaminating soil and groundwater.

Polyurethane or Polyisocyanate Foam Rigid polyurethane and polyisocyanate foams will, when ignited, burn rapidly and produce intense heat, dense smoke and gases, which are irritating, flammable and/or toxic. As with other organic materials, the most significant gas is usually carbon monoxide. Thermal decomposition products from polyurethane foam consist mainly of carbon monoxide, benzene, toluene, oxides of nitrogen, hydrogen cyanide, acetaldehyde, acetone, propane, carbon dioxide, alkenes and water vapour.

Chromium VI Control of Substances Hazardous to Health (Amendment) Regulations 2004 prohibits the use of cement which has a Chromium VI concentration of greater than 2 parts per million. These requirements also apply to a range of products that contain cement such as mortars, grouts and tile adhesives etc. The requirement has been introduced to help prevent allergic contact dermatitis, a potentially serious condition that can lead to permanent disability which can occur when wet cement containing chromium VI comes into contact with the skin.

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Restriction on Certain Hazardous Substances in Electrical & Electronic Equipment The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2005 prohibits, other than in certain exempt cases, the use of lead, mercury, cadmium, hexavalent chromium and types of brominates flame retardant because of their hazardous nature and disposal requirements.

Solvent Based Paints Any paint (including oil based paints) with a high solvent content (VOC's) is potentially hazardous to health. The ability of organic chemicals to cause health effects varies greatly from those that are highly toxic, to those with no known health effect. As with other pollutants, the extent and nature of the health effects will depend on many factors including level of exposure and length of time exposed. Eye and respiratory tract irritation, headaches, dizziness, visual disorders, and memory impairment are among the immediate symptoms that some people have experienced soon after exposure to some organics. Organic solvents such as benzene are known carcinogens.

Timber from unknown or uncertified sources (unless from proven sustainable source) Where possible, all timber should be procured from sources independently certified to the Forest Stewardship Council (FSC) Standards, or equivalent. Please refer to the Central SHE Department for further guidance or clarification of standards. See „green list‟ below for preferred options

Wood Wool Cement Slabs used as permanent formwork Caution is needed when using slabs as permanent formwork in concrete because the absorbency of the material has a tendency to produce a loss of fine aggregate and grout from the concrete and may also cause inadequate compaction.

9.0 List of Preferred Materials (Green List)

The following list specifies materials and substances that are considered by Costain Group to be preferable due to their environmental desirability or reduced environmental impact. The inclusion of materials and substances on this list does not imply that they have zero environmental impact, but their use represents a tangible step towards the protection of environmental and/or human health.

Certified Sustainable Timber (certified by Central Point of Expertise on Timber (CPET) approved scheme)

There is huge public concern about the destruction of the world‟s forests. More and more people demand products that come from well-managed and sustainable forests. This demand has led to many different labels on forest products, making claims such as „for every tree felled at least two are planted‟. Many of these claims are irrelevant or misleading. An authoritative study by the World Wildlife Fund for Nature (WWF) found that of a sample of 80 different environmental claims found on wood and paper products, only three could even be partially substantiated.

Sustainable timber (sources) refers to forest management that must minimise harm to ecosystems, maintain forest productivity, ensure forest health and vitality and maintain biodiversity. The details of the interpretation must be decided based on balanced participation of social, environmental and economic interests.

Actively seeking to procure legal timber and timber products is a mandatory government policy, which applies to all central government departments, agencies and sponsored bodies. Guidance for contracts where this is a requirement is detailed below. Although this is not currently a Costain Policy, contracts should aspire to meet the requirements where possible.

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In order to meet the UK Government‟s criteria for sustainable timber, the material must be (a) 'recycled timber' or (b) timber from a 'sustainable source' (as described above); or (c) a combination of (a) and (b).

To assist organisations to meet the Government‟s and client requirements and/or to ensure that all timber products are procured from legal sources, the Central Point of Expertise on Timber Procurement (CPET) was set up by the Department for Environment, Food and Rural Affairs (Defra), and is operated by ProForest. This Guidance Note was produced based on content from the CPET Website and provides information to ensure compliance CPET approved schemes include Forestry Stewardship Council (FSC), Programme for the Endorsement of Forest Certificate (PEFC), Canadian Standards Association (CSA) and Sustainable Forestry Initiative (SFI). FSC certified timber is probably the most common and most recognised certification schemes but there are other available.

Compliance can be achieved by ensuring that the contracts between the contractor and their timber and timber products suppliers have a Supplementary Condition of Contract regarding Timber and Wood Derived Products. This requirement should be included within the contract where required and evidence of certification discussed at pre commencement meetings. Requirement to only purchase certificated timber should be highlighted at the early stage of the contract and included within the contract documentation to subcontractors and suppliers.

Documentary evidence demonstrating the timber supplied is from the sustainable source should be made available by the subcontractor or supplier. The evidence should include full chain of custody from the forest source(s) to the end user.

Normally, when purchasing from a certified supplier, they will provide you with a copy of their Chain of Custody certificate (COC certificate). In some cases, they may only provide you with their COC number. The duration of holding records on site for the purpose of audit verification should be agreed with the client.

When specifying timber from a sustainable source, the contractor must request that the COC number be displayed on all documentation from the supplier regarding that material, such as delivery slips and invoices. This is a requirement of their COC certification. Where timber is being procured from a company that is submitting their COC number as evidence of the delivery, it is not necessary to obtain individual COC numbers from the original sources. The invoice or delivery slip will specify which products are from a certified source and a record of these numbers and details should be kept..

Costain Group will promote the use of certified timber with our clients, and seek to use it wherever we are able to.

Suggested Timber Specification Policy for Inclusion in Tender Documentation “Forest management can be environmentally appropriate and socially beneficial, but it can also be environmentally and socially damaging. Costain Group recognises its responsibility as a consumer of forest products to ensure that we have a neutral, if not positive, effect on the world‟s forests.

We will give preference to timber and timber products which carry the Forest Stewardship Councils (FSC) Trademark, or other label from an equivalent independent certification system for good forest management. This will take into account environmental, ecological; biodiversity, social and economic needs, showing the timber (tropical, temperate or boreal, hardwood or softwood) or timber product is from a credible sustainable source.

If FSC (or equivalent) trademarked timber proves to be unavailable, contactors will, as a second resort only, use timber from a known source, and will attempt to gain as much assurance as possible that the forest is well-managed and will provide documentation of proof.”

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Reused and Recycled Materials Provided that reused or recycled materials are of sufficient quality and of comparable cost, they should be specified in preference to virgin materials. Reused materials are preferable to recycled materials due to the energy inputs required. See Specific Procurement Requirements (paragraph 10.1 below) and the Waste and Material Management section of this manual for further information when importing recovered/recycled material and the legal requirements.

The use of recycled and reused materials is becoming an important policy driver in public procurement. It is becoming increasingly prevalent in a number of sectors where there are a variety of quick wins which can be specified to achieve high proportions of recycled material as part of the total material spend.

Education The government‟s Building Schools for the Future has sustainability built into the design briefs and procurement templates. For many of these school construction projects, value requirements are set by the client for recycled materials (currently 10%) which are specified to help them achieve the required environmental assessment.

Health The Government‟s NHS plans for new hospitals include, as part of the clients business case, funding for an appraisal and evaluation of the environmental impacts such as waste production and recycling. This requirement will be passed to the contractor as set value requirements (also typically 10% recycled materials). Highways Local Authorities have policy requirements in areas such as sustainability, procurement good practice, best value and waste management. Government guidance on public procurement highlights tender/ contract specification as the key stage to set their policy requirements, which will ultimately be passed to the contractor to implement.

Examples of Quick Wins Importing of Recycled Aggregates recovered in line with the „WRAP Quality Protocol‟ for: o Use of material in structural fill o Use in temporary lay down areas, haul roads or as a piling mat (see Paragraph 10 below) Reuse of material from demolition through gaining relevant Environmental permits or waste exemptions to crush and reuse. (See Waste & Material Management section of this manual) Structural steel, which contains on average around 60%+ recycled material Recycled cement or grout replacement material such as PFA (Pulverised Fuel Ash) Specification of other materials with significant recycled content, for example blockwork and floor coverings. For further information or guidance see the further reading section or contact your SHE/Environmental Advisor. Other information sources include the WRAP (Waste and Resources Action Programme) website www.wrap.org.uk and the Building research establishment website www.bremap.co.uk which provides further information on recycled or secondary materials in your area.

Materials with Low Embodied Energy / Enhanced design life Materials with low embodied energy (i.e. reduced energy inputs during raw materials extraction manufacture, production) which are sourced locally are preferable to materials requiring a high level of energy to manufacture and/or which must travel long distances.

Durable, long lasting and reusable materials are preferable to single use disposable materials due to their reduced environmental impact.

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Safety, Health & Environment Section 4 – Do Work Procedures & Guidance SHE Material Procurement

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Pre-fabricated materials Prefabricated materials constructed off-site are generally preferable to those constructed on site, since wastage can be more efficiently controlled and transport requirements are usually reduced.

Clay piping The use of clay pipes instead of plastic for utilities is more environmentally beneficial due to the lack of oil and chemicals used in its production. The extraction of clay causes less damage than the production of plastic and it also will break down in the environment more easily than its plastic equivalent at the end of its life.

10 Specific Procurement Requirements

10.1 Recycled/Recovered Material

When purchasing and importing recycled/recovered material (i.e. material which was once a waste and has been processed to make a product which is suitable for use) the recycled/recovered material must either be processed in accordance with the WRAP Quality Protocol (see link for additional information www.wrap.org.uk/recycling_industry/quality_protocols/index.html) or imported under a Waste Exemption or environmental permit.

If the original waste material is not processed in accordance with the WRAP Quality Protocol to produce a recycled/recovered product, then it is deemed not to be fully recovered and is still classified as a waste. See the Waste and Material Management section of this manual for detailed requirements for importing recycled materials.

11. References and Further Reading

The Green Guide to Specification – An environmental profiling system for Building Materials and Components, BRE, 1998 Excluded Materials: An Industry Survey, CIRIA, 1996 Good Practice in the Selection of Construction Materials, Shehan, Ove Arup & Partners 1997 Hazardous Building Materials - A guide to the Selection of Environmentally Responsible Alternatives 2nd Edition, Curwell et al Spon Press, 2002. Alternatives to PVC – Supplier guide, Greenpeace A Clients Guide to Greener Construction CIRIA Special Publication 120 Sustainable Retail Premises: an environmental management guide to design, refurbishment and management of retail premises BRE Environment. www.wrap.org.uk -for information on recycled alternatives in construction specification www.aggregain.org.uk -for information on recycled aggregates www.bremap.co.uk - for sourcing recycled or secondary materials.

The following sections of this Manual Waste and Material Management SHE Work Winning (Tendering & Estimating) Traffic Routes, Vehicles & the Protection of Pedestrians Storage and Materials

______Section 4 - SHE Material Procurement Page 10 June 2010

Islington – Final Green Procurement Plan May 2014

APPENDIX C- Supplier Certifications

Certificate of Registration

ENVIRONMENTAL MANAGEMENT SYSTEM - ISO 14001:2004

This is to certify that: Bourne Construction Engineering Ltd St. Clements House St. Clements Road Poole BH12 4GP United Kingdom

Holds Certificate Number: EMS 545747

and operates an Environmental Management System which complies with the requirements of ISO 14001:2004 for the following scope:

The provision of design, manufacturing, installation, refurbishment and project management construction engineering services. Services combine to provide total structural steelwork and off site solutions, and associated packages, to clients' specifications and requirements.

For and on behalf of BSI: Gary Fenton, Global Assurance Director

Originally registered: 08/06/2009 Latest Issue: 30/11/2012 Expiry Date: 08/06/2015

Page: 1 of 1

This certificate was issued electronically and remains the property of BSI and is bound by the conditions of contract. An electronic certificate can be authenticated online. Printed copies can be validated at www.bsigroup.com/ClientDirectory

Information and Contact: BSI, Kitemark Court, Davy Avenue, Knowlhill, Milton Keynes MK5 8PP. Tel: + 44 845 080 9000 BSI Assurance UK Limited, registered in England under number 7805321 at 389 Chiswick High Road, London W4 4AL, UK. A Member of the BSI Group of Companies. Certificate of Registration

ENVIRONMENTAL MANAGEMENT SYSTEM - ISO 14001:2004

This is to certify that: Buchans Concrete Solutions Kings Lane Byley Middlewich CW10 9NB United Kingdom

Holds Certificate Number: EMS 564628

and operates an Environmental Management System which complies with the requirements of ISO 14001:2004 for the following scope:

The design, manufacture, supply and installation of structural pre-cast reinforced and pre-stressed concrete building and civil engineering elements.

For and on behalf of BSI: Gary Fenton, Global Assurance Director

Originally registered: 22/03/2011 Latest Issue: 13/12/2013 Expiry Date: 22/03/2017

Page: 1 of 1

Certificate Schedule (attached to and forming part of Certificate No: CP E 00024)

Environmental Management Systems Certification – ISO 14001:2004

Hanson Building Products Ltd Hanson House 14 Castle Hill Maidenhead SL6 4JJ

Location Activity

Hanson Building Products, Kirton Works, Station Road, The winning of clay, manufacture and Kirton, Newark NG22 9LG storage of claybricks. Hanson Building Products, Corngreaves Trading Estate, The Manufacture and storage of clay Cradley Heath, B64 7DD bricks. Hanson Building Products, Borras Road, Borras, Wrexham The manufacture of concrete building LL13 9TW blocks. The manufacture of concrete building Hanson Building Products, Sproughton Road, Ipswich, blocks, and pre-cast concrete building IP1 5AN elements. Hanson Aggregate Blocks, Sutton Courtenay Lane, Milton, The manufacture of concrete building Abingdon OX14 4UB blocks. Hanson Building Products, Marine Parade, Southampton The manufacture of concrete building SO14 5JF blocks. The winning of clay, manufacture and Hanson Building Products, Redbank, Atherstone Road, storage of clay bricks, manufacture of Measham, DE12 7EL terracotta building products and concrete flue systems. Hanson Building Products, Birchwood Way, Cotes Park The manufacture of pre-cast concrete Industrial Estate, Somercotes, Alfreton DE55 5NH building elements. Hanson Floors and Pre-cast, Alfreton Road, Derby The manufacture of pre-cast concrete DE21 4BN building elements. Hanson Thermalite, Hams Hall Distribution Park, Canton The manufacture of aerated, lightweight, Lane, Coleshill B46 1AQ concrete building blocks. Hanson Thermalite, Enterprise Way, Nr Thatcham, Newbury The manufacture of aerated, lightweight, RG13 7NA concrete building blocks. Hanson Building Products, 2 Gibbett Lane, Shawell, The manufacture of concrete building Lutterworth LE17 6AA blocks. Hanson Floors and Pre-cast, Hoveringham, Nottingham The manufacture of pre-cast concrete NG14 7JX building elements. Hanson Building Products, Ibsley Airfield, Ringwood The manufacture of concrete building BH24 3PJ blocks.

The manufacture of concrete paving and Hanson Formpave, Tufthorn Avenue, Coleford GL16 8PR kerbing systems.

Page 1 of 2 Issue No: 002 Issue date: 20 January 2014

This Certificate Schedule is valid from 20 January 2014 to 30 April 2014

Certificate Schedule (attached to and forming part of Certificate No: CP E 00024)

Environmental Management Systems Certification – ISO 14001:2004

Hanson Building Products Ltd Hanson House 14 Castle Hill Maidenhead SL6 4JJ

Location Activity

Hanson Building Products, Kings Dyke Works, 222 Manufacture of concrete building blocks. Peterborough Road, Whittlesey PE7 1PD Hanson Building Products, Heath Road, Bagworth, Desford The winning of clay, manufacture and LE67 1DL storage of clay bricks. Hanson Building Products, Claughton Manor Works, The winning of clay, manufacture and Claughton LA2 9JY storage of clay bricks. Hanson Building Products, Kings Dyke Works, 222 The winning of clay, manufacture and Peterborough Road, Whittlesey PE7 1PD storage of clay bricks. Hanson Clay Products Ltd, Accrington Nori Factory, The winning of clay, manufacture and Accrington BB5 6NR storage of clay bricks. Hanson Clay Products Ltd, Howley Park Factory, Quarry The winning of clay, manufacture and Lane, Woodkirk, Nr Dewsbury WF12 7JJ storage of clay bricks. Hanson Clay Products Limited, Swillington Factory, The winning of clay, manufacture and Wakefield Road, Swillington, Leeds LS26 8BT storage of clay bricks. Hanson Building Products, Wilnecote Brick Works, Hedging The winning of clay, manufacture and Lane, Tamworth B77 5EU storage of clay bricks.

Page 2 of 2 Issue No: 002 Issue date: 20 January 2014

This Certificate Schedule is valid from 20 January 2014 to 30 April 2014