Site Waste Management Plans and the Code

Dr Mervyn Jones, WRAP

WRAP’s seven programmes

WRAP’s construction focus:

Waste minimisation and management Materials recycling Procurement - (Recycled Content)

Materials resource efficiency

Overall material consumption by construction industry (>400 Mt per year)

M t

on

nes

Quantity of construction and demolition waste generated (~100 Mt per year inerts)Waste construction

materials that are recycled / re-used (~60 Mt per year)

Overall waste generated (>150 Mt per year)

controlled waste (~20 Mt per year)

Materials efficiency as part of sustainable construction Sustainability goals

Energy Materials Water

Waste avoidance and minimisation

Segregate, recover, reclaim

and recycle

Return surplus materials

Specification of materials with low enviro. impact

Use local C&D waste / reclaimed products

Use less material

Material selection

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Use products with higher recycled content

Demolition Protocol

DTI Site Waste

Management Plans

Green Guide

Ecopoints

RC Toolkit

Code for Sustainable Homes (2006)

'Where the site waste management plan includes procedures and commitments that minimise waste generated on site in accordance with WRAP/Envirowise guidance'

Waste Management Hierarchy

Reduce the generation of wasteReuse materials for the same or a different purpose

Recycle the materials to recover valueDispose, using the best practical environmental option

True Cost of WasteThe original

purchase price and

transportation costs of the

materials

+

The cost of their handling,

storage, transport and

disposal

+

The loss of income from not salvaging the materials

e.g. 8 cu yd skip

Skip hire £120

Labour to fill skip £163

Cost of materials put in skip £1095

TOTAL TRUE COST £1378(Source: AMEC)

True cost of waste

Extraction of raw material for block

Energy for block manufacture

Stored for transport

Delivered to site

Stored on site

Delivered to point of fix

Broken whilst being laid

Taken to waste container

Disposed of

Embodied energy at all stages!

Example – Concrete Block

Potential savings

Case studies have shown savings of:

3% of build costs

20% of materials on site

0.2% of total project costs saved through segregation

(Source: Taylor Woodrow)

Residential Waste Streams

The top five waste streams for residential, in terms of arisings are:

Concrete & bricks Packaging Timber Plasterboard

Miscellaneous

Waste per average newbuild house

Typical 80m2 housing unit =

15.36m3 waste

Approx 5 skips

9.6 tonnes

£6,715

Waste Segregation

Basic waste segregation into:

General Waste (Non-hazardous)

Inert Waste

Mixed Metals

(+ Hazardous waste separated

out)

£90£0£90

£258

£90

Waste Segregation

Housing development (30 skips /week):

Mixed waste system = £4,970

Segregated waste = £1,935

Ca 60% saving

SWMP format

3 elements:GuidanceChecklist (35 questions)Data recording sheet

Guidance covers:Waste and legislationDuty of careWaste minimisationTraining materialsReporting requirements

www.wrap.org.uk/construction/on_site

Message of SWMP Pre design stages

Part of early project planning process as a framework introducing other tool & requirements such as demolition protocol, duty of care etc

Design stages

The design is a key factor in influencing waste arising during construction. Encourage design team to reduce waste at source.

Construction stages

Implement on site at all levels of construction activity. Communication and training to all site staff, where necessary.

Site Waste Management Plans: Current Practice

Just in time delivery, secure storage areas, double handling eliminated

Clearly located and defined storage areas for materials

Segregated containers at the workface; use of compacters and balers on site

Containers optimised for segregation with clear labels and signs

Separate containers for hazardous waste

Layout and skip location considered at design stage

Site design, storage and logistics

Takeback schemes with suppliers for surplus materials and packaging

Wood, plasterboard, packaging and inert

Metals and high value materials

Recycling of materials

Reuse area on site for all materials, collaboration with local community groups to use surplus

Concrete, soils and inert materials, on and off site

Inert materials

Reuse of materials

Waste minimisation included as part of the design; use of standard sizes, prefabrication, etc.

Opportunities for recycling and reuse identified prior to construction

Listed in SWMP before site work commences

Identification of waste arisings and disposal routes

Contractual agreements with set targets and regular review

Agreements with subcontractors on how to manage waste

Subcontractors

Contractual agreements with high levels of recycling; partnership working

Dialogue to establish opportunities for recycling

Waste management contractors

Responsibility for individual areas designated to individuals and subcontractors

One person designated as overall waste champion

Responsibility for waste management

Documentation showing compliance with legal requirements

Duty of Care

BestGoodStandardActivity

Just in time delivery, secure storage areas, double handling eliminated

Clearly located and defined storage areas for materials

Segregated containers at the workface; use of compacters and balers on site

Containers optimised for segregation with clear labels and signs

Separate containers for hazardous waste

Layout and skip location considered at design stage

Site design, storage and logistics

Takeback schemes with suppliers for surplus materials and packaging

Wood, plasterboard, packaging and inert

Metals and high value materials

Recycling of materials

Reuse area on site for all materials, collaboration with local community groups to use surplus

Concrete, soils and inert materials, on and off site

Inert materials

Reuse of materials

Waste minimisation included as part of the design; use of standard sizes, prefabrication, etc.

Opportunities for recycling and reuse identified prior to construction

Listed in SWMP before site work commences

Identification of waste arisings and disposal routes

Contractual agreements with set targets and regular review

Agreements with subcontractors on how to manage waste

Subcontractors

Contractual agreements with high levels of recycling; partnership working

Dialogue to establish opportunities for recycling

Waste management contractors

Responsibility for individual areas designated to individuals and subcontractors

One person designated as overall waste champion

Responsibility for waste management

Documentation showing compliance with legal requirements

Duty of Care

BestGoodStandardActivity

Activity not carried out

Activity carried out occasionally or at low level

Activity carried out thoroughly on all sites

Housing Sector SWMP Support

Sector specific suite of tools, requirements and guidance

Provides model templates, requirements and clauses for incorporating into new and existing SWMPs based on:

Standard practiceGood practiceBest practice

Housing Sector SWMP Support

Specific elements include:Guidance for commissioning clients

and housebuildersTemplate for developing a waste

strategy Model clauses for

Trade contractors Waste service providers

Requirements for good and best practice implementation of SWMPs

Materials Resource Efficiency in Construction

www.wrap.org.uk/construction