CHRISP STREET, POPLAR, LONDON PLANNING DISCHARGE - CONDITION 01 CONSTRUCTION ENVIRONMENTAL MANAGEMENT & CONSTRUCTION LOGISTICS PoplarHARCA & Telford Homes November 2019
SHEPPARD ROBSON 2 CHRISP STREET, LONDON Introduction
This document has been prepared in support of discharging Condition 01 of n) Temporary public toilets to be made available on the site for the period between Planning Application PA/16/01612 for the water infrastructure in the development. the demolition of the existing public toilets and the opening of the Community Hub building (within Phase 2 only). The condition is as follows: The development in the relevant Phase shall not be carried out other than in 1 - No development, including any works of demolition, in a particular Phase accordance with the approved details. shall commence until a Construction Environmental Management & Construction Logistics Plan for that Phase have been submitted to and approved in writing Reason: In the interests of highway and pedestrian safety and to preserve the by the Local Planning Authority, in consultation with Transport for London and amenity of the area in accordance with the requirements of Tower Hamlets Core Dockland Light Railway. Strategy policy SP09 and SP10.
The plans shall aim to minimise the amenity, environmental and road network impacts of the demolition and construction activities and include the details of: a) Telephone, email and postal address of the site manager and details of complaints procedures for members of the public; b) Method statement for the removal of any Japanese knotweed c) Dust Management Strategy to minimise the emission of dust and dirt during construction including but not restricted to spraying of materials with water, wheel washing facilities, street cleaning and monitoring of dust emissions in accordance with the Mayor of London’s Control of Dust and Emissions during Construction and Demolition SPG (July 2014); d) Measures to maintain the site in a tidy condition in terms of disposal/storage of waste and storage of construction plant and materials; e) Scheme for recycling/disposition of waste resulting from demolition and construction works; f) Ingress and egress to and from the site for vehicles; g) Proposed numbers and timing of vehicle movements through the day and the proposed access routes, delivery scheduling, use of holding areas, logistics and consolidation centres; h) Parking of vehicles for site operatives and visitors; i) Travel Plan for construction workers; j) Location and size of site offices, welfare and toilet facilities; k) Erection and maintenance of security hoardings including decorative displays and facilities for public viewing; l) Measures to ensure that pedestrian access past the site is safe and not obstructed; m) Measures to minimise risks to pedestrians and cyclists, including but not restricted to accreditation of the Fleet Operator Recognition Scheme (FORS) and use of banksmen for supervision of vehicular ingress and egress.
CHRISP STREET, LONDON 3 PHASE I AND II PROJECT EXECUTION PLAN
This document describes how Telford Homes (PLC) intends to manage the construction project at Chrisp Street Market
The main aim of this report is to show: Project Execution Plan
• The management controls that Telford Homes have in place to reduce any adverse impact the development may have on the local amenity.
• To ensure that Traffic Movements to and from the development will not have a detrimental impact on the Highways, Public and Local Residents
• Outline the main sequencing, phasing and logistical planning to inform the construction team on the methodology to deliver the project.
• This document should be read in conjunction with the Construction Phase Plan, Health and Safety Plan and Project Management Plan.
Chrisp Street Market Chrisp Street Poplar London E14 6ET
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4 CHRISP STREET, LONDON Document History Table of Contents
Revision Status Description Author Checked By Date Objectives and scope of PEP ...... 4
Description of the Project ...... 5
Location ...... 6
Site Constraints ...... 7
Project Execution Strategy ...... 9
Methodology ...... 14
Demolition ...... 14
Enabling works ...... 16
Foundation Installation ...... 16
Groundworks and Sub-Structure ...... 16
Superstructure ...... 16
Facade ...... 20
Retail fit out...... 21
Site Logistics ...... 22
Security, Erection and Maintenance of Hoarding ...... 22
Vehicle Circulation / Access to site ...... 24
Storage of Hazardous Materials ...... 25
Demolition and Site Waste Management Strategy ...... 25
Site Lighting ...... 27
Construction Dust ...... 29
Construction Noise and Vibration ...... 29
Wheel Washing ...... 29
Principle Plant and Equipment ...... 29
Cranage ...... 30
Site Accommodation ...... 32
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CHRISP STREET, LONDON 5 Traffic Management Plan ...... 33 Objectives and scope of PEP
This document describes how Telford Homes (PLC) intends to manage the construction project at Chrisp Street Market
The main aim of this report is to show:
The management controls that Telford Homes have in place to reduce any adverse impact the development may have on the local amenity.
To ensure that Traffic Movements to and from the development will not have a detrimental impact on the Highways, Public and Local Residents
Outline the main sequencing, phasing and logistical planning to inform the construction team on the methodology to deliver the project.
This document should be read in conjunction with the Construction Phase Plan, Health and Safety Plan and Project Management Plan.
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6 CHRISP STREET, LONDON Description of the Project Location
The proposed development provides for the mixed-use regeneration of Chrisp Street Market and will The site is located at Central National Grid Reference TQ379811 and is situated within the London provide the following: Borough of Tower Hamlets.
• A total of approximately 19,500sqm of retail, leisure, employment and community floorspace, including a new six screen cinema, community hub building and additional new M retail units; Existing Site Chrisp Street • Significant public realm improvements and enhancement to the Market Square, a new market canopy, new and improved routes through the site and new public squares; A, B, C F&G H • 649 new residential dwellings including the replacement of 124 social rented units with much higher quality accommodation; Phase 1 Phase 2
• High quality residential accommodation that meets minimum floorspace standards, has access to private and communal amenity spaces and play areas;
• Retention and refurbishment of Festival of Britain buildings, including 43 residential units, ground floor retail units and the Clock Tower; and D E J, K & L
• Erection of a landmark building in the south eastern corner on East India Dock Road which will act as a marker for the entrance to the district centre. Figure 1
Figure 2
Proposed view looking north along Market Way - Daytime
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CHRISP STREET, LONDON 7 Site Constraints
Local Residents
The scheme is to be constructed with a high number of existing residents remaining in their current homes which will be surrounded by construction activity. All utilities to these dwellings will have to Local Schools remain live until the new permanent services are installed and switched over. There are two schools located within area and it is important to ensure they understand the risk of
an operational construction. It is very important that we have minimal impact on these areas and Local Retailers try and direct any construction related traffic away from these routes.
Chrisp Street Market is occupied by many different shops and many of the existing retailers will be By allowing the construction traffic to exit onto East India Dock Road via Kerby Street will ensure continuing to trade in the new Chrisp Street development once the new scheme is complete. Many that construction vehicles do not migrate into local residential streets. of the existing retailers will be changing from their current location and there is a strategic plan to We are in early discussions with DBFO and London Borough of Tower Hamlets to allow vehicles to ensure that minimal disruption is made to trading. All utilities to these retail units will need to exit from Kerby Street onto East India Dock Road thus allowing better control of vehicles entering remain live until the new permanent services are installed and switched over. and leaving and thus avoiding dispersion into local streets with greater risk to public.
DLR
To the East of the site the DLR (Stratford to Lewisham/Canary Wharf train) runs adjacent to Block M. We will enter into an Asset Protection Agreement and all work packages will be issued using the DLR Template and will be signed off by the DLR in advance using a letter of “No Objection”.
We shall allow a minimum of Five Weeks from issue to approval Public Footfall
It is important that footfall is maintained throughout the development to ensure trade does not suffer due to construction works.
Pupils from nearby schools will be using footways to walk to homes, DLR stations and bus stops. It is important that the construction activities do not affect their access out of the area. If it does, alternative access routes must be made available.
Public Highways
Chrisp Street Market is surrounded by four active carriageways.
• North Boundary - Cordelia way is a two-way street. This street is used on bus routes and is frequently used as a link to the two local schools. • East Boundary – Chrisp Street is a two-way street and busy most of the day. The street is used on bus routes and is a key link road to the A13. Chrisp Street is also the access for vehicles to Chrisp Street Market which has large vehicles making deliveries. • South Boundary – East India Dock Road is an A road with two lanes of traffic on either side of the road and is busy throughout the day. • West Boundary – Kerby Street is a two-way street with restricted access to the East India dock road which is managed by a lockable gate. Request to use this access on to Kerby street is has been applied for and has had agreement in principle to exit only subject to a formal submission Proposed view looking north along Market Way - Nightime
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8 CHRISP STREET, LONDON Project Execution Strategy M The project will be split in to two Phases:
Phase 1 will consist of:
• Blocks A, B & C A, B, C H • Blocks D & E F & G • Block M • Market Canopy Construction and Regeneration
Phase 2 will consist of:
• Block H • Blocks F & G • Blocks J, K & L
Blocks Phase Number of Units D E J, K & L Blocks A,B and C Phase 1 144 Block D and E Phase 1 31 Block M Phase 1 81 Block F,G&H Phase 2 237 Block J,K and L Phase 2 156
The project is scheduled for a commencement date of May 2020 and is anticipated to have a 8-year 12 | Page construction duration to complete both Phase 1 & 2.
It is foreseen that all blocks in Phase 1 will run concurrently. There is also a strategy to start Block H during Phase 1 construction period. Blocks F, G, J, K & L will be the last Blocks constructed and will be programmed to run concurrently. Sequence 1
The Key Dates are as follows:
Revision 12 Programme
Description Block D Block E Block A, B & C Block M Block H Blocks F&G Block J, K, L Demolition 11/05/20 11/05/20 11/05/20 12/08/21 25/03/22 29/09/21 Enabling 11/05/20 Piling 11/08/20 09/09/20 30/09/20 07/07/20 11/05/22 21/10/22 19/07/22 Structure 19/10/20 25/11/20 19/02/21 03/03/21 23/12/22 17/07/23 23/12/22 Fit Out 25/01/21 25/01/21 27/10/21 08/02/22 19/01/24 18/04/24 09/02/24 Shared 16/09/22 (A) Buy to Rent 17/05/23 (BTR) Handover 06/04/22 06/04/22 18/01/23 18/06/25 18/03/25 (G) 21/03/25 16/06/25 (F)
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CHRISP STREET, LONDON 9 Methodology Sequence 2 The construction sequence and proposed methodology is detailed below, these assumptions are based on stage 2 design information
Demolition
This specialist activity will be undertaken by a qualified tried and tested contractor who will ensure that minimal disturbance is caused during the demolition operations. All works will be controlled and the work areas segregated from the public. Telford Homes and the appointed contractor will ensure that Waste, Dust and Logistics all have management plans prior to works commencing. The Demolition stage will involve the removal of buildings down to ground floor slab only.
A separate contractor will be appointed to undertake this enabling works package i.e. removal of Ground floor slab and all works below ground level.
Block A, B & C
Demolition of Clarissa house (24 flats), The young Prince, Poplar Boys Club and the Coop is required to release the construction of these blocks.
The bridge which is connected at either end to the Festival of Britain buildings will have to be removed post relocation of William Hill into existing SureStart.
Block D & E
Demolition of existing Canopy, Garages, Aurora House (8 flats).
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No demolition required Sequence 3 Block H Demolition of Aurora house (16 flats)
Block F & G
Demolition of all the existing retail and residential Blocks
Block J, K & L
Demolition of all existing residential and retail ensuring that the idea Store is not disturbed by demolition works.
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Enabling works
The enabling works package will include but not limited to:
• The removal of the existing ground floor slabs and existing foundation. • Reduce dig • Stockpile management and soil testing • Service diversions and TBS route installation • Pile mat installation (using crushed onsite material where possible to save cost and vehicle movement)
Foundation Installation Demolition Strategy It is foreseen that throughout the project foundations will predominately be CFA piles. Depth, Size and location is still to be designed. There is a possibility that Blocks D & E maybe constructed on a Raft foundation or using shallow foundation caps and ground beams.
Foundation design ensures that consideration of existing buildings and services is given. It also helps to avoid disruption to the existing retailers.
Contiguous pile wall pile walls will be installed to form basements.
UXO probing maybe required at pile location depending on historic information and the risk of a strike. LBTH LBTH Owned Owned During this operation it will be important to ensure logistic plans are followed and that access and egress for Piling Rigs, excavators and concrete wagons is maintained. Wheel washing facilities will also have to be provided to protect public highways. Prior notice to the surrounding residents will have to be given.
Any excavated material will have to be stockpiled and is subject to testing and disposed of accordance with its waste classification to a licenced waste disposal station(s).
Groundworks and Sub-Structure
The Ground works package will include but not limited to:
• Pile mat removal
17 | Page • Pile Cap construction • Drainage and service run installation • Basement construction to Blocks M and F and G • Ground Floor Slab construction • Tower Crane base installation • Drainage and services
Superstructure
Overview of Structural Scheme
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RESIDENTIAL BLOCKS ABOVE PODIUM LEVEL These floors are to be constructed as 250mm thick reinforced concrete “flat slabs”. Columns are A 750mm thick transfer slab is to be provided to support the podium and residential blocks over provided at locations to suit the apartment layouts and to limit span lengths to suit the proposed the long span supermarket and loading bay areas. floor construction. Balconies arrangements also determine columns positions. Where level 1 and mezzanines exist, columns are assumed to align with the residential grid above. BALCONIES Every apartment includes a balcony, typically recessed or “loggia” balconies except for Block H Block D & E where the balconies cantilever. The balconies are typically vertically stacked in each block, to minimise the need for thermal insulation above or below the slab and the ensuing awkward steps These are duplex units in which the residential accommodation extends from ground floor level in structural slab levels. This also avoids localised reduction in floor to ceiling heights. Balconies upwards to G+3, so no transfer structures are required. The longer span podium slab across the are thermally separated from the surrounding floor plates by means of thermal breaks cast into loading bays can be accommodated with the increased loading bay head height. the slab. A study shows column positions in Block E, Block D would be similar. Although the unit layouts have since changed, the same columns centres and approximate COLUMNS positions will still apply. Column grids within apartments are slightly irregular to suit internal apartment layouts including A 450mm thick transfer slab is estimated to be require to support the podium level across the balcony locations. Columns are 200mm wide to fit into partition walls. The column breadth will loading bay entry. vary depending on the number of stories to be supported overhead. Columns below podium level will vary in shape and arrangement according to the layout of each Block M unit. As mentioned above, if the column grid differs from that of the residential unit above, a thickened transfer slab will be required. The slab construction and column grid on the upper storeys will be typical of all the residential LEVEL 2 PODIUM AND TRANSFER STRUCTURES blocks, and the same column grid will be replicated at ground floor level to avoid transfer The podium supports isolated raised planters and a significant depth of finishes to include paving, structure. insulation and drainage. The podium is at Level 2, and the slab steps in level and changes in Market Canopy thickness according to whether it is internal or external and the length of span supported. Many areas require a change in structural grid above and below podium Level 2, which requires a substantial transfer structure at that level. The preferred option is a solid transfer slab of uniform The primary structure of the Market canopy comprises steel columns rising from a fixed base to depth. This minimises overall depth and simplifies construction in comparison to a beam and slab form portal frames with steel roof beams in both north-south and east wet directions. This system. Alternative options of down stand beams and slabs were investigated; these are most structure supports a timber diagrid which acts in a similar to the Hub roof. Maximum steel depth is economic in terms of material volumes but it was felt that the other cost and programme benefits 1000mm with glulam timber beams 950 deep by of a flat soffit during design and construction outweighed the savings of a minimum-concrete 460mm wide. volume solution. Where a thickened level 2 slab transfer structure is not employed, it is assumed that residential Block H column positions can be replicated at ground floor level with minimum offsets. Where this is not acceptable then a thickened transfer slab is required. This is a tower of 2 wings; G+14 and G+24 in height. The apartment layouts and slab and LATERAL STABILITY columns construction is typical, although the columns will have to Stability of the buildings under horizontal load is to be provided by reinforced concrete shear be bigger (longer) than the other blocks due to the greater building’s loads, and balconies now walls, typically located around stair, lift and services cores. project as cantilevers. The key issue for Block H is that of lateral stability. Lateral stability is provided by reinforced concrete shear walls within the central core, linked to each other by a 350mm Typically, each residential block has sufficient number of potential shear walls within each core, thickened lift lobby slab. and suitable locations of cores within each block, to ensure sufficient stability, by inspection. There is a transfer structure at Level 2 to accommodate the non-residential column grid at lower The key issue has been to ensure that the cores extend down to foundation level where shear levels. walls are required. Where cores do not exist below podium level, then they have been ignored in terms of any contribution to lateral stability. Block F & G In some locations a single shear wall is provided at ground floor level, below or in close proximity to services cores at upper floors, in order to transfer lateral loads to foundations. Core H is exceptional in that lateral stability and design of reinforced concrete shear walls will be A 750mm thick transfer slab is to be provided to support the podium and residential blocks across critical to the building design owing to its height being much greater than the other blocks within the loading bay area. this development. There is no thickened transfer slab over the retail areas, on the basis that column positions will be vertically stacked from ground level upwards, and that column spacings under the landscaped Blocks A, B & C podium will be limited to about approximately 5m centres.
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Facade
Blocks J, K & L The external Façade is formed of Traditional Brickwork with the exception of Block H which would be a more modern methods of construction. A 900mm thick transfer slab is provided to support the podium and residential blocks over the cinema box and loading bay areas. This is accommodated by increased head height within the loading bay where level 1 is not present, and the fact that the cinema box is sunk into the ground. Where level 1 and mezzanines exist in smaller retails units, columns are assumed to align with residential grid above
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Retail fit out Site Logistics
The retail includes a number of independent retailers and national chains such as Boots, Iceland and No work will be permitted outside the hours of 08:00 and 18:00 Monday to Friday and 08:00 to William Hill. 13:00 on a Saturday. Nor at any time on Sunday and bank Holidays without prior written approval of the local authority. Some retailers are being relocated, others remain insitu or are vacating the area. It is envisaged that due to the nature of the works some out of hours working will be required and Generally, the independent retailers will have their shop front replaced and even be assisted with agreement will be sought with LEO. white box fit out within an agreed budget.
The nationally chains generally require a shell and care package, as the retailer will be undertaking their own fit out. Security, Erection and Maintenance of Hoarding • Suitable hoarding in accordance with GS7 will be erected and where applicable will be A number of strategic moves are required in order to free up the new development (some erected in accordance with local authority guidelines. temporary, some permanent) • Additionally, pedestrian barriers will be placed around the works area, which will be removed progressively as the works progress.
• A detail design has been undertaken by PTA associates for all hoarding types applicable to
the scheme.
• Lighting and security cameras will be in place on all hoarding as required
• Warning signs highlighting the dangers of construction sites and also highlighting potential
risks will be on display in designated areas around the site.
• Third parties will be encouraged to notify the company of any concerns they may have and contact names of the person(s) responsible will be displayed on the hoarding.
• Telford Homes will be in regular contact with the local Police to seek advice and their assistance to control unauthorized access
• Telford Homes will seek out all opportunity to liaise with all members of the public/residence associations to keep all informed of progress and to deal with any concerns
raised
• Temporary access routes and covered walkways will be constructed to allow waste management and protected means of escape.
• Where necessary permission will be sought to construct hoarding on public footpaths.
• Protected walkways and gantry’s will be constructed to facilitate offloading. E.g. Block M frontage onto Chrisp Street will require such an arrangement.
• A Company will be appointed to provide branding and decorative displays on the hoarding and we will seek the opportunity to engage with the local schools in finalising and agreeing design options.
• The design will include designated windows for public viewing.
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Vehicle Circulation / Access to site
Block A, B & C
Access into site will be phased throughout the construction sequence for Blocks A, B & C. The first access points will be located on Cordelia Street and serve as an entrance only with an exit point being located on Southill Street.
Once the Groundworks are complete the new access and egress points for vehicles will be at the new loading bay entrance.
Block D & E
Hoarding Lines Block D will have a vehicle access point at the North of Aurora House on Kerby Street, a Block M turning area will need to be provided so vehicles can exit from this location. This area will be shared with the retailers.
Access to site for Block E will be of Kerby Street where the new loading bay will be located. This can be used for construction materials deliveries and retail unit delivers. Blocks F & G
Blocks A, B & C Block M Block M will have two vehicle entrance points throughout the construction period which will Gantry (Demo Stage) also serve as an exit. One will be located on Chrisp Street Market to the south of the Block Gantry (Demo Stage) and the other North of the block on Willis Street.
Block H Blocks J, K & L Block E Block H access will be from Chrisp Street which will serve as an exit and entrance throughout the duration of the build.
Block F & G
TBC
Block J, K & L 25 | Page TBC
All construction and permanent crossovers will be organised by the logistic consultant Mayer Brown. Mayer Brown will also plan all major construction traffic routes ensuring that minimal disturbance is caused to the surrounding area. Key to this is the approval of Kerby Street access and egress via the East India Dock Road.
Achieving access of East India Dock Road is essential to avoid construction traffic migrating into residential areas and close to local schools and is a better means of control by our appointed Traffic Marshalls.
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A high priority will be given to the placement of Traffic Marshalls around the development to ensure that pedestrians remain safe at all times and also to ensure that public rights of way are not • Strict compliance with all relevant legal requirements, codes of practice and regulations; obstructed. • Organise our operations in order to minimise waste by considering materials and the method of construction at the design stage. We will forecast the type of waste and how it will be managed before construction commences; Storage of Hazardous Materials
• Seek to minimise waste by drafting a Site Waste Management Plan (SWMP) identifying the Detail Waste Acceptance Criteria (WAC) tests will be carried out to classify the existing ground. types of waste, recording any design stage considerations and build waste management targets into tender specifications; Our Geotechnical Engineer will provide a remediation strategy in relation to the scheme in regard to both imported and exported materials. • Train all staff to improve awareness of re-using materials and providing regular toolbox talks on site with all workers; Where ever possible materials will be tested, screened and recycled and used on site. (E.g. Crushed Concrete) • Careful selection in the choice of equipment, materials and working methods to make the most efficient use of stores, resources and leftover materials; TH (PLC) will wherever possible design out any hazardous material within the permanent works • Encourage energy savings by ensuring that all power appliances and equipment is switched All materials delivered to site will be stored in accordance with manufactures recommendations off when not in use. Re-use of parts and components where possible and encourage re-use of stationary in office and materials on site until unserviceable; Detailed COSHH data sheets will be obtained from the supply chain to confirm specific requirements related to each item and the recommendation in the handling, storage and use of the product • Order stationery/materials in bulk where possible in order to avoid unnecessary deliveries,
therefore, reducing direct cost and fuel usage emissions; Demolition and Site Waste Management Strategy
• Encourage customers to specify materials and equipment which has the least environmental TH(PLC) are committed to conducting their business in a manner which is both professional and effect during manufacture, when in service, and which can be recycled at the end of its life; ethical whilst at all times paying attention to their environmental responsibilities including the correct disposal, re-use and segregation of waste: • Ensure disposal of waste through approved disposal contractors in compliance with existing legal controls and retain waste disposal notes for all transactions removed from site. All bulk The hierarchy adopted when sourcing suppliers and sub-contractors is as noted below: waste paper disposals will be sent to recycling unit;
• All records of SWMP’s will be retained on site for inspection throughout the contract and retained in the office for 2 years after completion (A copy will also be given to the client on completion);
• Apply lessons learnt and resources saved on other sites;
• As waste is processed on site, the SWMP will be updated and reference made to waste transfer notes on an ongoing basis for all trades;
• General waste to be disposed of using segregated skips provided under contract arrangements. Larger skips to be used to reduce vehicle movements and ensure skips are full prior to exchange
• Consider modern methods of construction prefabrication etc to reduce amount of waste and Opportunities for reuse have been identified: work on site whilst serving to reduce the on-site construction programme.
• Reuse of Crush Concrete into Piling Mat (subject to available storage) Japanese Knotweed
These responsibilities will be addressed by implementing the following:
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A thorough Survey of the site has been undertaken and confirmation report has been Site Lighting received confirming that the site is free of Japanese Knotweed and therefore no remediation is required is this respect. Verification letter is contained within the Appendices Temporary lighting will be installed along the access roads and will be mounted on temporary poles.
The use of some the existing light columns is under consideration and will involve relocation to suit proposed development.
The lights will be cited as low as possible i.e. circa Five Meters to prevent light glare but provide sufficient clearance for construction Plant and Equipment.
Tower Cranes will have lighting mounted on the MAST (SON Floodlights or similar approved) to illuminate the construction working area and which will be limited to a specific construction task area and for the duration of the task only and will be adjusted as the construction work progresses.
Additional Aviation warning lights will be mounted on the cranes and the detail and specification will be agreed with London City Airport.
To prevent glare-especially in regard to drivers operating the DLR and HS1 the lights will be sensitively positioned in accordance with good industry practice for the control of obtrusive lights as given in ILP GN01:2011 Guidance Notes for the reduction of Obtrusive Lights or CIE Publication 150:2003
All pedestrian routes/corridors and stairs will be lit using Five Foot 110V Fittings (Lumen Output of 4500LM all other task lighting will be provided by the trades and the lighting levels will be appropriate for the task in accordance with HSE publication HSG38 “Lighting at Work” and will be relocated as the works progress.
Protected areas will be created for residence with access control to prevent anti-social behaviour.
The design will follow guidance BE EN12464-2:2007.
The internal lights will remain lit to aid access by security should they be required to access the building during the night in the event of an emergency.
All other lights will be on timers/photocells to ensure lights are switched off during periods of inactivity to meet our stainability objectives
In regard to hoarding lights they will be on their own timer and photocell but will not turn off after 18:00 hours
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Construction Dust
Identification of good working practices and suitable mitigation measures in order to minimise the potential for dust emissions and nuisance risks
A detailed dust management plan reference 777322-MLM-ZZ-XX-RP-J-0002 dated April 2019 is included within the Appendices.
Dust will be managed accordingly and methods will be dependent on what element of works are being undertaken.
All Lorries will be sheeted before leaving site if the contents are likely to cause nuisance
A dust management plan will be produced for the project which will identify what stages of the construction sequence are at risk of creating dust and control measures will be detailed on how to manage the process but will include but not restricted to the following:
• Spraying of materials with Water • Wheel washing facilities • Street cleaning (last resort as prevention will be the primary objective) • Dust monitoring will be undertaken in accordance with the Mayor of London’s Control of Dust and Emissions during Construction and Demolition SPG (July 2014)
Construction Noise and Vibration
Noise and vibration will be minimised through best practice and good management in order to minimise impact on the local residents and sensitive receivers in the local vicinity.
All plant and equipment will be fitted with the correct and maintained exhaust mufflers and noise suppression kits.
Noise readings will be taken as and when necessary to ensure that noise levels are kept to a minimum and do not exceed trigger levels.
Wheel Washing
An area of hand standing will be established from the outset near all vehicle exit gates where vehicles will be washed down using a jet wash. Run off will be directed back towards site via settlement tank and discharged to sewer.
All gully outlets will be screened off to prevent debris entering the drainage system
To regulate water run off a Thames Water discharge license will be obtained
Principle Plant and Equipment • 360 Excavators, Dumpers and Muck Away Wagons • Forklifts • Piling Rigs
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• Crusher and Screening Plant • Tower lighting • Mobile Cranes • Tower Cranes • Tower lighting • Concrete Pumps • Hoists • Concrete Wagons • MEWPS • Generators • Screed Pumps
Cranage
All cranes on Chrisp street development and are planning to be Luffing Cranes.
Over sail licenses will have to be obtained for all cranes
Anti-collision and zoning system will have to be installed to ensure cranes in close proximity do not collide and restricted lifting areas cannot be breached.
Cranes to be powered by Generators with a view to change to a HV feed at a later date.
Voids to be left in structural slabs for the cranes
Mobile Crane positions for Tower Crane erecting to be planned. This is to be included in the Crane Strategy document.
Stakeholders to consider: • DLR • Existing Residents • Existing Retail • Highways • Market place • Pedestrian walkways
Crane Strategy plan to be produced for the Erection, Crane Type, Duration and Demobilisation of all Tower Cranes.
Hoisting Arrangements
Goods and Passenger hoist will be provided on each block
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Site Accommodation If required there will also be potential for small welfare units located on site but this will be Phase 1 subject to available space.
The main project office will be located in the old Poplar Harca office which is located on the East See Site office plan below. India Dock Road. The project office is risk assessed to accommodate circa of 150 people and this will include Telford staff and Sub-contractor management.
Project Office
Due to the Phase 2 development the project office will be vacated and a new project office and welfare unit will need to established before Phase 1 building works are completed.
There will be a separate area located outside the offices which has room for drying rooms, toilets and canteen space for site operatives.
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Traffic Management Plan All vehicles will be taken onto site and off loaded within the development-If not possible then offloading areas will be agreed with the Local Authorities and appropriate compound licences will be Telford Homes will work with Mayer Brown and the local borough to develop a Traffic put in place Management scheme that will reduce the impact of the development on the local community. (Construction Logistics Plan) All vehicles will be accompanied by a banksman traffic marshal (Provided by both Telford Homes and the respective sub-contractor responsible for the delivery) A key factor to this Scheme is the acceptance of opening the Kerby Street access to the East India Dock road, this access can be for construction vehicles only and will remove the need for Un-authorised or un-notified deliveries will be refused entry any construction traffic to pass any local schools. Queuing of Trucks or Lorries will not be permitted.
Telford Homes will strive to ensure that traffic congestion due to construction vehicles is As part of the procedure for allocating delivery times to suppliers, care will be taken to reduce the minimal and that construction vehicles access site on arrival and do not congest roads. number of vehicles travelling to the site within peak periods.
Each project will have its unique Traffic management plan detailing traffic movements once site Wherever possible deliveries will be taken onto site earlier to allow vehicles to be off loaded during is accessed by any vehicle. peak times and they will only be allowed to leave after peak traffic flow periods.
Travel Plan and Car Parking Generally, we will endeavour to take receipt of deliveries between the hours of 09:30am and 03:30 pm (school times). The project will have no provision for parking on site. This information will be distributed to all staff and sub-contractors via email before they are due on site.
Sub-contractors will only be allowed to drive to site to off load material and tools and the site team Storage of Plant and Material will be vigilant to ensure illegal parking is avoided. Any breaches will be strictly dealt with and persistent offenders will be removed from site A high emphasise will be placed on maintaining a clean and tidy site in terms of disposal and storage of waste and storage of construction plant and material.
Public Transport During the initial Enabling works an area will be set up to store Concrete and other recyclable materials from the initial enabling works. Through procurement and agreed induction process all operatives will be encouraged to use Public Transport wherever practicable.
The DLR is the best source is transport that is located at all mayor Underground and national rail Inspection and Control of the Works locations. The best DLR stops to access Chrisp Street is All Saints and Langdon Park
Telford Homes will in conjunction with their Sub-contractors develop an inspection and test plan procedure for the inspection and monitoring of the works Deliveries and Off-loading Complaints Procedure The CLOCS Standard for construction logistics: Managing work related road risk has been developed Telford Homes PLC will sign up to the Considerate Constructors Scheme as a common national standard for use by the construction logistics industry and this will be adopted on this scheme. In order to continuously improve our working methods and environment, feedback will be encouraged, received and reacted to. Fleet Operators Recognition Scheme (FORS) will also be adopted by contractors and suppliers to demonstrate compliance to CLOCS This will encompass every side of the working environment of a construction site including the workforce itself, visitors, Retailers, Traders and the surrounding public, schools etc. All deliveries of materials to site or removal from site shall take place during the hours and in the The Compliments/ Comments/ Complaints Record will be used by companies and suppliers to manner specified in the Site Wide Construction Transport Management Plan. document any feedback received and how issues or queries were resolved.
A weekly delivery programme will be developed by the site management and discussed and agreed All complaints will be managed and overseen by the Project Manager responsible for the Block or with the contractors and circulated on Fridays (One week in advance) Phase under his direct control Public Toilets
37 | Page 38 | Page
The current Public Toilets will be demolished and replaced with a Temporary Public Toilet and the Appendix 1-CLP opening of the Community Hub within Phase 2 The design is to be developed but will consist of 3 DDA Compliant Toilets
39 | Page
40 | Page
Appendix 3 -Programme
& Reports
43 | Page -Drawings
Knotweed Verification Report Knotweed Dust Management Dust Management Plan
Page • • |
41 Appendix 2 PHASE I AND II CONSTRUCTION LOGISTICS PLAN
TELFORD HOMES
CHRISP STREET MARKET POPLAR
CONSTRUCTION LOGISTICS PLAN
NOVEMBER 2019 TELFORD HOMES CHRISP STREET MARKET CONSTRUCTION LOGISTICS PLAN
1 INTRODUCTION
1.1 Introduction live This CLP is prepared in accordance with Transport for London’s ‘Construction Logistics Plan Guidance’ – he ‘Project Execution Plan’ prepared by Telford
1.2 CLP Objectives TELFORD HOMES Lower emissions
Enhance safety CHRISP STREET MARKET Reduce congestion POPLAR
• CONSTRUCTION LOGISTICS • PLAN • NOVEMBER 2019 • • • •
1.3 Site Context Project Code: Prepared by: Position: Issue Date: Status: –
Mayer Brown Limited 1 TELFORD HOMES TELFORD HOMES CHRISP STREET MARKET CHRISP STREET MARKET CONSTRUCTION LOGISTICS PLAN CONSTRUCTION LOGISTICS PLAN
1.4 Development Description – Out of date / to be updated. Refer to paragraphs 3.1 and 6.1 • • • • • • • • • • • • • •
1.5 CLP Structure
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2 Context, Considerations and Challenges The Mayor’s Transport Strategy (2010) 2.1 Policy Context The Traffic Management Act 2004 The Act makes ‘...provision in In particular, Proposal 99 states that “ for regulating the carrying out of works and other activities in the street’. It acknowledges that • Aim for 50% of HGVs and vans serving London to be members of FORS by 2016; • Encourage, and where appropriate specify, improved freight movement efficiency through, for Designing for Deliveries, Freight Transport Association (2006) • Support freight industry land requirements for locally focussed consolidation and/or break facilities and access to waterways and railways”. “… Construction Logistics and Community Safety Standard (CLOCS) (Version 3, 2019) promotion of ‘delivery and servicing plans’, ‘construction logistics plans’, the Fleet Operator Recognition Scheme and other efficiency measures, across London”. The London Freight Plan (2007) “…the appropriate, through London to support London’s economy, in balance with the needs of other , the environment and Londoners’ quality of life”. The Plan identifies FORS, DSPs, Delivering a Road Freight Legacy (2013) Fleet Operator Recognition Scheme (FORS) • Better planning; friendly. It’s relevance to the CLP • Improving safety; is via its mention in the Mayor’s Transport Strategy and requirements will be • Re • Kerbside access; • Increasing efficiency; Transport for London Low Emission Zones • Effective communications; and • Journey planning. The London Plan (2011) Addressing the key trends and challenges that London will face, this Mayor’s document pays
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• 2.2 Context Maps
– 2.3 Local Access including Highway, Public Transport, Cycling and Walking – A] Footway Closures B] Highways – C] Parking – D] Bus Stops:-
•
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E] Cycle Routes:- F] Pedestrian Crossings Chrisp Street – Cordelia Street East India Dock Road A] Highways B] Footway Closures
C] Bus Stops:- D] Cycle Routes:- 2.4 Considerations and Challenges
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– LBTH’s ’s The Contractor’s Traffic Marshalls and Security Personnel will be trained and fur
Contractor’s traffic management schemes, in particular any road or lane closures, must take account
TfL’s
– St Saviour’s Primary School
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3 Construction Programme and Methodology • • • • •
• • • • • • • • • • • •
Construction Programme Description Block D Block E Block A, B & C Block M Block H Blocks F&G Block J, K, L Demolition 11/05/20 11/05/20 11/05/20 12/08/21 25/03/22 29/09/21 Enabling 11/05/20 Piling 11/08/20 09/09/20 30/09/20 07/07/20 11/05/22 21/10/22 19/07/22 Structure 19/10/20 25/11/20 19/02/21 03/03/21 23/12/22 17/07/23 23/12/22 Fit Out 25/01/21 25/01/21 27/10/21 08/02/22 19/01/24 18/04/24 09/02/24 Shared 16/09/22 (A) Buy to Rent 17/05/23 (BTR) Handover 06/04/22 06/04/22 18/01/23 18/06/25 18/03/25 (G) 21/03/25 16/06/25 (F) 3.2 Phase 1 3.3 Phase 2 •
• • • • • •
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4 Vehicle Routing and Access
It is proposed that the developer’s Community Liaison Officer will work with the school to assist in s through controlled ‘gate’ feature and turn left on to EIDR (see also 4.6 below).
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5 Strategies to Reduce Impacts projects’ vehicles and drivers are reported to the Project Manager and any relevant parties. The ‘FORS Manager’ reporting toll, or similar, will be used. High Impact Site – Planned measures Checklist Committed Proposed Measures influencing construction vehicles and deliveries
Material procurement measures There are to be no unexpected or unscheduled vehicles arriving at the site Other measures
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ordination of ‘drop off’ trips by the same supplier or haulier;
– –
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6 Estimated Vehicle Movements
Table 2 - Estimated Construction Vehicles – HGVs – Monthly and Daily Number of trips Construction Stage Time period (max) Phase 1 –
–
–
Phase 2
Peak period of construction 1800 90 Phase 1 + Phase 2
• • • • –
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TELFORD HOMES CHRISP STREET MARKET CONSTRUCTION LOGISTICS PLAN
7 Implementing, Monitoring and Updating
CLO’s role will • Number of vehicle movements to site; collected through the delivery management system • Total • By vehicle type /size • Late arrivals • Time spent on site • Delivery/collection accuracy compared to schedule
• Breaches and complaints • Vehicle routing • Unexpected arrivals • Unacceptable waiting / parking outside of site • Supplier FORS accreditation
• Safety • Logistics • Record of associated fatalities and serious injuries • Ways staff are travelling to site • Vehicles and operations not meeting safety requirements
7.5 7.6
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26 27
28 30
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32
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PHASE I AND II DUST MANAGEMENT PLAN Telford Homes PLC Chrisp Street Market, Tower Hamlets
Dust Management Plan Chrisp Street Market Chrisp Street Market Dust Management Plan © MLM Consulting Engineers Limited Dust Management Plan © MLM Consulting Engineers Limited
Notice
This document and its contents have been prepared and intended solely for Telford Homes PLC. The information Contents in this dust management report and its use is in relation to the planning application for Chrisp Street Market, Tower Hamlets. Limitations and Exceptions ...... 1
MLM Consulting Engineers Limited assumes no responsibility to any other party in respect of or arising out of or in Introduction ...... 2 connection with this document and/or its contents. 2.1 General ...... 2 2.2 Report Structure ...... 2 Document History 2.3 Objectives ...... 2
Client: Telford Homes PLC The Site ...... 3 Project: Chrisp Street Market, Tower Hamlets Document Title: Dust Management Plan 3.1 Location and Description ...... 3 Document Reference: 777322-MLM-ZZ-XX-RP-J-0002 3.2 Proposed Development ...... 3 MLM Reference: DG/777322/KN Air Quality Standards and Relevant Guidance ...... 4 Revision Status Description Author Checked and Approved Date C01 S2 Alex Crayton Karunakar Nagula 24/04/19 4.1 International Legislation and Policy ...... 4 4.2 National Legislation and Policy ...... 4 4.3 Control of Dust and Particulates Associated with Construction ...... 7 4.4 Regional Planning Policy ...... 7 4.5 Local Planning Policy ...... 9 4.6 Guidance ...... 10
Local Baseline Air Quality ...... 11
5.1 Local Air Quality Management ...... 11 5.2 Local Emission Sources ...... 11 5.3 Local Authority Air Quality Monitoring Data ...... 11 5.4 Defra Background Maps ...... 11 5.5 London Atmospheric Emission Inventory Maps ...... 12
5.6 Site Specific Diffusion Tube Monitoring for NO2 ...... 12
Proposed Works Summary and Timetable ...... 13
6.1 Summary of the Construction Programme ...... 13 6.2 Construction Methods to be used in each Stage of the Development ...... 13
Construction Phase Methodology ...... 15
7.1 Prediction Method and Approach ...... 15 7.2 Significance Criteria of Construction Phase Impacts ...... 20
Construction Dust Impact Assessment ...... 21
8.1 Dust Impacts during the Construction Phase of the Proposed Development ...... 21 8.2 Potential Dust Emission Magnitude ...... 21 8.3 Sensitivity of the Surrounding Area ...... 22
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8.4 Defining the Risk of Impacts ...... 24 8.5 Construction Traffic ...... 24 Limitations and Exceptions
Measures to Control Dust and Emissions during Construction and Demolition Phase ...... 25 This report and its findings should be considered in relation to the terms and conditions proposed and scope of works agreed between MLM and the client. 9.1 Site Management ...... 25 9.2 Preparing and Maintaining the Site ...... 25 This report provides available factual data for the site and the surrounding area at the time of the study and as obtained by the means described in the text. The data is related to the site on the basis of the site 9.3 Reducing Emissions from Vehicles ...... 27 location information provided by the Client. 9.4 Operations ...... 28 It should be appreciated that the information that has been made available to date, is not necessarily 9.5 Waste Management ...... 28 exhaustive and that further information relevant to the proposed site usage may be provided which could 9.6 Mitigation Measures Specific to Demolition ...... 29 change the overall findings. 9.7 Measures Specific to Earthworks ...... 29 The copyright in this report and other plans and documents prepared by MLM Consulting Engineers Ltd 9.8 Measures Specific to Construction ...... 29 (MLM) is owned by them and no such report, plan or document may be reproduced, published or adapted 9.9 Measures Specific to Trackout ...... 29 without their written consent. Complete copies of this report may, however, be made and distributed by the Client as an expedient in dealing with matters related to its commission. Monitoring Residual Impacts ...... 31 The content of websites visited during the internet searches has not been validated and is accepted de 10.1 General ...... 31 facto and without prejudice. Anyone relying upon the information obtained from such sources does so at their own risk. Notwithstanding, MLM takes all reasonable care in assessing information only from 10.2 Proposed Dust Monitoring ...... 31 reputable and professional sources. No responsibility can be accepted by MLM for inaccuracies within the 10.3 Automatic PM10 Monitoring ...... 31 data supplied. 10.4 Reporting ...... 32 This report is prepared and written in the context of the proposals stated in the introduction to this report 10.5 Instrument Malfunction ...... 33 and should not be used in a differing context. Furthermore, new information, improved practices and legislation may necessitate an alteration to the report in whole or in part after its submission. Therefore, Non-Road Mobile Machinery (NRMM) ...... 34 with any change in circumstances or after the expiry of one year from the date of the report, the report should be referred to us for re-assessment and, if necessary, re-appraisal. 11.1 2015 Emission Standards ...... 34 11.2 2020 Emission Standards ...... 34
Implementation and Management ...... 35
Figures
Figure 1: Site Location Plan Figure 2: Site Location and Local Authority Monitoring points Figure 3: Windrose from London City Airport meteorological station 2017 Figure 4: Construction Dust Buffer zones Figure 5: Trackout Dust Buffer Zones Figure 6: Indicative Osiris Monitoring Locations
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Introduction The Site
2.1 General 3.1 Location and Description
MLM Consulting Engineers Ltd (MLM) was commissioned by Telford Homes PLC (the Client) to prepare a The development site is a broadly rectangular area that is located in Poplar, east London within the Dust Management Plan (DMP) to discharge planning condition 1c of the permitted planning application for jurisdiction of the LBTH. The area is bordered by the A13 East India Dock Road to the south, Chrisp Street the area known as Chrisp Street Market (ref: PA/16/01612) states that: to the east, Cordelia Street to the North and Kerbey Street to the west (‘Site’). The Site comprises the Chrisp Street Market District Centre; a mixed use area including approximately 18,234m2 retail and “1 - No development, including any works of demolition, in a particular Phase shall commence until a commercial floorspace and 212 residential properties, centred around the Chrisp Street Market which is Construction Environmental Management & Construction Logistics Plan for that Phase have been located in the middle of the Site. The site location is shown in Figure 1. submitted to and approved in writing by the Local Planning Authority, in consultation with Transport for London and Dockland Light Railway. The plans shall aim to minimise the amenity, environmental and The surrounding area of the site is primarily of residential nature that has been regenerated in recent years. road network impacts of the demolition and construction activities and include the details of: The Clock Tower within the Site is Grade II listed and there are a number of listed buildings to the immediate south and southwest of the site including All Saints Church with St Frideswide, Poplar Baths and c) Dust Management Strategy to minimise the emission of dust and dirt during construction the Susan Lawrence and Elizabeth Lansbury School (all Grade II listed). including but not restricted to spraying of materials with water, wheel washing facilities, street There are a number of open space areas within the surrounding area, the Lansbury Lawrence Primary cleaning and monitoring of dust emissions in accordance with the Mayor of London's Control of School is located to the northwest of the Site on Cordelia Street and in terms of healthcare facilities, Chrisp Dust and Emissions during Construction and Demolition SPG (July 2014); Street Health Centre is located on Chrisp Street to the northeast of the Site.
The development in the relevant Phase shall not be carried out other than in accordance with the 3.2 Proposed Development approved details.” The Proposed Development includes the: The development proposals include for the comprehensive redevelopment of the existing area including 19 new buildings and enhancement of the existing market (‘Proposed Development’). The Proposed Demolition of existing buildings with the exceptions of: Development site falls within the planning jurisdiction of the London Borough of Tower Hamlets (LBTH). o Any festival of Britain buildings; 2.2 Report Structure o The Clock Tower; and o The Idea Store; The structure of the report is summarised below: Erection of 19 new buildings ranging from 3 to 25 storeys providing; o 643 residential units (Class C3) A brief description of the site and Proposed Development; o Refurbishment of existing festival of Britain buildings; A brief description of the legislation governing air quality in England; o The reconfiguration and replacement of existing commercial premises and provision of new Baseline air quality conditions in the vicinity of the site; commercial premises including a new cinema (Class D2); Details of the proposed works; o Alterations and additions to the existing Idea Store for community and multi-function use Details of the methodology used for the dust impact assessment; and, (Class D1); Mitigation measures to manage dust emissions. o Flexible affordable workspace/community space (Class B1/D1); Office space (Class B1); 2.3 Objectives o o Retail, financial and professional services and café/restaurant floor space (Classes A1 – The objectives of this report are: A3), including a food store (A1); o Public House (Class A4); To assess the present levels of dust (ie PM10 – particles which are less than 10μm in diameter o Hot food takeaway (Class A5); concentrations) around the Proposed Development site based upon the Local Authority data and the o Upgrade and provision of new public open space including a children’s play area; background atmospheric concentrations, as available in the public domain; and, o New public realm; Assess the potential dust impacts during the construction phase of the development and develop the o Landscaping works and new lighting; appropriate dust mitigation measures. o Cycle parking spaces including visitor cycle parking; and o Provision of disabled parking spaces.
Figure 2 shows the proposed site layout plan.
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Air Quality Standards and Relevant Guidance The NAQOs apply to external air where there is relevant exposure to the public over the associated averaging periods within each objective. Guidance is provided within Local Air Quality Management Technical Guidance 20166 (LAQM.TG (16)) issued by Defra for Local Authorities, on where the NAQOs 4.1 International Legislation and Policy apply as detailed in Table 4.2. The objectives do not apply in workplace locations, to internal air or where people are unlikely to be regularly exposed (ie centre of roadways). The European Directive (2008/50/EC)1 sets legally binding limits for concentrations of outdoor air of major air pollutants that impact public health such as particulate matter (PM10 and PM2.5) and nitrogen dioxide Table 4.2 Locations where Air Quality Objectives Apply 2 (NO2). The European Directive is implemented in the UK under the Air Quality Standards Regulations 2010 . The obligations under the Air Quality Standards Regulations 2010 are separate from those of the 2000 and Averaging Period Objectives Should Apply at: Objectives Should Generally Not Apply at: 2002 UK Regulations because local authorities in the UK will only have powers to manage some of the pollutants in the Air Quality Standards Regulations 2010 as most of the source pollutants will be managed Annual mean All locations where members of the Building façades of offices or other places by the Environment Agency under the Environmental Permitting Regime3. Therefore, the obligation to meet public might be regularly exposed. of work where members of the public do the Air Quality Standards Regulations 2010 rests with the Secretary of State for Environment. Building façades of residential not have regular access. properties, schools, hospitals, care homes etc 4.2 National Legislation and Policy Hotels, unless people live there as their permanent residence. 4.2.1 Local Air Quality Management Gardens of residential properties. Part IV of the Environment Act 19954, requires the UK Government to publish an Air Quality Strategy and local authorities to review, assess and manage air quality within their areas. This is known as Local Air Kerbside sites (as opposed to locations at Quality Management (LAQM). The 2007 Air Quality Strategy5 establishes the policy for ambient air quality the building façade), or any other location in the UK. It includes the National Air Quality Objectives (NAQOs) for the protection of human health and where public exposure is expected to be vegetation for 11 pollutants. Those NAQOs included as part of LAQM are prescribed in the Air Quality short term. (England) Regulations 2000 and the Air Quality (Amendment) (England) Regulations 2002. Table 4.1 24-hour mean All locations where the annual mean Kerbside sites (as opposed to locations at presents the NAQOs for Nitrogen dioxide (NO2) and particulate matter with an aerodynamic diameter of 10 and eight-hour objective would apply, together with the building façade), or any other location μg or less (PM10), the key pollutants of concern in relation to vehicle emissions. mean hotels. where public exposure is expected to be Table 4.1 Relevant Objectives set out in the Air Quality Strategy short term. Gardens of residential properties* Pollutant Concentrations Measured As One-hour mean All locations where the annual mean Kerbside sites where the public would not and: be expected to have regular access. 200 μg/m3 not to be exceeded more than 1 hour mean
Nitrogen Dioxide (NO2) 18 times per year 24 and eight-hour mean objectives 40 μg/m3 Annual mean apply. Kerbside sites (for example, 50 μg/m3 not to be exceeded more than 35 24 hour mean pavements of busy shopping streets). Particulate Matter times per year (PM10) Those parts of car parks, bus stations 3 40 μg/m Annual mean and railway stations etc which are not Particulate Matter 25 μg/m3 Annual Mean fully enclosed, where members of the (PM2.5) public might reasonably be expected to spend one hour or more.
The Air Quality Strategy also introduced a new policy framework for tackling fine particles (PM2.5) including an exposure reduction target. However, although EU Directive 2008/50/EC includes a new regulatory Any outdoor locations where members of the public might reasonably framework for PM2.5 this pollutant is not included within LAQM, therefore, there is no requirement to assess this pollutant unless as part of an Environmental Impact Assessment (EIA). expected to spend one hour or longer. 15-min mean All locations where members of the However, to ensure a robust assessment PM2.5 has been considered in this assessment. The objective for public might reasonably be exposed this pollutant has been included in Table 4.1. for a period of 15 minutes.
* – Such locations should represent parts of the garden where relevant public exposure to pollutants is likely, for example where there is seating or play areas. It is unlikely that relevant public exposure to
pollutants would occur at the extremities of the garden boundary, or in front gardens, although local judgement should always be applied. 1 Directive 2008/50/EC Of The European Parliament And Of The Council, 21st May 2008. 2 Air Quality Regulations 2010 --- Statutory Instrument 2010 No. 1001 3 The Environmental Permitting (England and Wales) Regulations 2016, as amended. 4 Environment Act 1995, 1995, The Stationery Office. 5 The Air Quality Strategy for England, Scotland, Wales and Northern Ireland, March 2011. 6 Local Air Quality Management, Technical Guidance (TG16), Department of Environment Food and Rural Affairs (Feb 2018).
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4.2.2 National Planning Policy Framework 4.3 Control of Dust and Particulates Associated with Construction
The latest guidance published in July 2018, the National Planning Policy Framework (NPPF)7 sets out the Section 79 of the Environmental Protection Act (1990)9 states that where a statutory nuisance is shown to Government's planning policies for England and how these are expected to be applied. It replaces exist, the local authority must serve an abatement notice. Statutory nuisance is defined as: Planning Policy Statement 238: Planning and Pollution Control and NPPF 2012 which provided planning guidance for local authorities with regards to air quality. 'Any dust or other effluvia arising on industrial, trade or business premises and being prejudicial to health or a nuisance' At the heart of the NPPF is a presumption in favour of sustainable development. 'Any accumulation or deposition which is prejudicial to health or a nuisance' It provides a framework within which locally-prepared plans for housing and other development can be produced. It requires Local Plans to be consistent with the principles and policies set out in the Framework Failure to comply with an abatement notice is an offence and if necessary, the local authority may abate the with the objective of contributing to the achievement of sustainable development. nuisance and recover expenses.
Current planning law requires that application for planning permissions must be determined in accordance In the context of the proposed development, the main potential for nuisance of this nature will arise during with the relevant development plan (ie Local Plan or Neighbourhood Plan). The NPPF should be taken into the construction phase - potential sources being the clearance, earthworks, construction and landscaping account in the preparation of development plans and therefore the policies set out within the Framework processes. are a material consideration in planning decisions. There are no statutory limit values for dust deposition above which 'nuisance' is deemed to exist - Under paragraph 103, it states that: 'nuisance' is a subjective concept and its perception is highly dependent upon the existing conditions and the change which has occurred. However, research has been undertaken by a number of parties to “The planning system should actively manage patterns of growth in support of these objectives. determine community responses to such impacts and correlate these to dust deposition rates. However, Significant development should be focused on locations which are or can be made sustainable, impacts remain subjective and statutory limits have yet to be derived. through limiting the need to travel and offering a genuine choice of transport modes. This can help to reduce congestion and emissions, and improve air quality and public health. However, opportunities 4.4 Regional Planning Policy to maximise sustainable transport solutions will vary between urban and rural areas, and this should be taken into account in both plan-making and decision-making.” 4.4.1 Cleaning the Air – The Major’s Air Quality Strategy, 2010
10 Under paragraph 170(e), it states that: The Mayor of London’s Air Quality Strategy sets out a series of policies and proposals for implementation of the UK AQS and for the achievement of the air quality standards and objectives within Greater London. “Planning policies and decisions should contribute to and enhance the natural and local environment With regards new developments the following policies are of relevance: by preventing new and existing development from contributing to, being put at unacceptable risk from, or being adversely affected by, unacceptable levels of soil, air, water or noise pollution or land Policy '7 - Using the planning process to improve air quality - new developments in London as a minimum instability. Development should, wherever possible, help to improve local environmental conditions shall be 'air quality neutral': The Mayor will encourage boroughs to require emissions assessments to be such as air and water quality, taking into account relevant information such as river basin management carried out alongside conventional air quality assessments. Where air quality impacts are predicted to plans.“ arise from developments these will have to be offset by developer contributions and mitigation measures secured through planning conditions, section 106 agreements or the Community Infrastructure Levy. Under paragraph 181, it states that: Policy '8 - Maximising the air quality benefits of low to zero carbon energy supply': The Mayor will apply “Planning policies and decisions should sustain and contribute towards compliance with relevant limit emission limits for both PM and NOx for new biomass boilers and NOx emission limits for Combined Heat values or national objectives for pollutants, taking into account the presence of Air Quality and Power Plant (CHPP). Air quality assessments will be required for all developments proposing Management Areas and Clean Air Zones, and the cumulative impacts from individual sites in local biomass boilers or CHPPs and operators will be required to provide evidence yearly to demonstrate areas. Opportunities to improve air quality or mitigate impacts should be identified, such as through compliance with the emission limits. traffic and travel management, and green infrastructure provision and enhancement. So far as possible these opportunities should be considered at the plan-making stage, to ensure a strategic Policy '9 - Energy efficient buildings': The Mayor will set CO2 reduction targets for new developments approach and limit the need for issues to be reconsidered when determining individual applications. which will be achieved using the Mayor's Energy Hierarchy. These measures will result in reductions of
Planning decisions should ensure that any new development in Air Quality Management Areas and NOx emissions. Clean Air Zones is consistent with the local air quality action plan.” Policy '10 - Improved air quality in the public realm': The Mayor will encourage the improvement of air quality in the public realm by planting vegetation to trap particulate matter. Through the planning system
the Mayor will increase the number of green roofs and living walls across London. Additionally, he will encourage the planting of trees in areas of poor air quality.
9 7 National Planning Policy Framework. July 2018. Ministry of Housing, Communities and Local Government Environmental Protection Act 1990, 1990, The Stationery Office. 8 Planning Policy Statement 23 (PPS 23): Planning and Pollution Control (ODPM). 10 Available at https://www.london.gov.uk/sites/default/files/Air_Quality_Strategy_v3.pdf
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4.4.2 The London Plan 2016 ‘Policy SI2 – Energy Infrastructure’ states that major development proposals within Heat Network Priority Areas should: The London Plan11 was first published in March 2015 and consolidated the London Plan 2011 with the Revised Early Minor Alterations to the London Plan12 and the Further Alterations to the London Plan also Use zero emissions or secondary heat sources; 13 published in March 2015. Further Minor Alterations to the London Plan were made in March 2016 . The Use low emission combined heat and power (CHP), only where there is a case for CHP to enable the Plan is the overall strategic plan for London setting out an integrated economic, environmental, transport delivery of an area-wide heat network; and social framework for the development of London over the next 20-25 years. It specifically addresses how development can help support the implementation of the Mayor's Air Quality Strategy and achieve a Use ultra-low NOx gas boilers; and, reduction in pollutant emissions and public exposure to pollution. CHP and ultra-low gas boiler communal or district heating systems should be designed to meet the requirements of policy SI1 (previously 7.14). Policy 5.7 deals with renewable energy and states that ‘all renewable energy systems should be located and designed to avoid any adverse impacts on air quality’. 4.5 Local Planning Policy
'Policy 7.14 - Improving Air Quality' requires all development proposals to: 4.5.1 London Borough of Tower Hamlets Core Strategy
Minimise increased exposure to existing poor air quality, make provision to address local problems of air LBTH Core Strategy was adopted in 2010 by LBTH, superseding all existing local planning documents. The quality (particularly within Air Quality Management Areas or AQMAs) and promote greater use of Core Strategy contains two policies which are dedicated to air quality. sustainable transport modes through travel plans. Strategic Policy SP03 which aims to address air pollution in LBTH by: Promote sustainable design and construction to reduce emissions from demolition and construction of buildings including following current best practice guidance. Continuing to promote the use of public transport and reducing reliance on private motor vehicles; Be at least 'air quality neutral' and therefore not leading to further deterioration of existing poor air Managing and improving air quality along transport corridors and traffic-congestion points by working quality. with Transport for London; and Look, in the first instance, to implement measures on-site to reduce emissions from a development. If Implementing a “Clear Zone” in the borough to improve air quality. inappropriate or impractical, other measures should be considered and where found to provide equivalent air quality benefits, planning obligations or planning conditions should be used to ensure their Strategic Policy SP10 seeks to: implementation. Ensure that buildings and neighbourhoods promote good design principles to create buildings, spaces The policy also states that ‘permission will only be granted where a detailed assessment of biomass boilers and places that are sustainable. It also promotes the use of design and construction techniques to shows no adverse impact from emissions’. reduce air pollution.
4.4.3 The Draft New London Plan 2018 4.5.2 London Borough of Tower Hamlets Managing Development, Development Plan Document, 2013 The draft ‘New London Plan’ was originally published for consultation in December 2017, with the most The Managing Development Plan Document for LBTH provides guidance for managing development across recent version, including minor changes and clarifications following the consultation period, published in the Borough. Policy DM9 – Improving Air Quality states that: August 2018. Much of the policy with regards to Air Quality has remained consistent with notable introductions of: “Major development will be required to submit an air quality assessment demonstrating how it will ‘Policy SI1 – Improving Air Quality’ requiring all development proposals to also: prevent or reduce associated air pollution during construction or demolition; and Minor development will be required to submit details outlining practices to prevent or reduce associated demonstrate how they plan to comply with the Non-Road Mobile Machinery Low Emission Zone air pollution during construction or demolition.” standards and reduce the emissions from the demolition and construction of buildings following best practice; and 4.5.3 London Borough of Tower Hamlets Draft Local Plan 2031 Masterplans and development briefs for large-scale development proposals subject to an Environmental LBTH has produced a draft Local Plan which was available for comment between 11 November 2016 and 2 Impact Assessment should propose methods of achieving an Air Quality Positive approach through the January 2017. The draft Local Plan contains one policy relevant to air quality, ES 2 Improving Air Quality, new development. which states:
“Development is required to at least meet the ‘Air Quality Neutral’ standard, including promoting the use of low or zero emission transport and reducing the reliance on private motor vehicles.
An Air Quality Impact Assessment, using the GLA’s approved methodology, is required as part of the planning application for:
11 Available at https://www.london.gov.uk/file/22780/download?token=a-BvX_IN Major developments; 12 Available at https://www.london.gov.uk/what-we-do/planning/london-plan/past-versions-and-alterations-london-plan Developments which will require substantial earthworks or demolition; 13 Available at https://www.london.gov.uk/sites/default/files/the_london_plan_malp_final_for_web_0606_0.pdf
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Developments which include education or health facilities or open space, including child play space; Local Baseline Air Quality and New build developments in areas of sub-standard air quality. 5.1 Local Air Quality Management
New build developments which propose to provide any private, communal or public open space, including LBTH has declared the entire borough as an AQMA for exceedances of the annual mean PM10 and NO2 child play space, in areas of sub-standard air quality, are required to demonstrate that the proposal has NAQOs. The main source of pollution in the Borough is traffic; other sources include onsite energy considered the positioning and design of the open space, to reduce exposure of future users to air generation, central heating systems and construction sites. pollution.” 5.2 Local Emission Sources Draft policy ES 2 is relevant to this proposed development as it specifically refers to “new build developments which propose to provide any private, communal or public open space, including child play The Proposed Development is located in an area where air quality is mainly influenced by emissions from space, in areas of sub-standard air quality”. road transport using the A13, Chrisp Street, Cordelia Street and Kerbey Street. There are no industrial pollution sources in the immediate vicinity of the site that will influence local air quality. 4.6 Guidance 5.3 Local Authority Air Quality Monitoring Data A summary of the publications referred to in the undertaking of this assessment is provided below. There are currently no automatic monitoring stations in the vicinity of the Proposed Development and only 4.6.1 Guidance on the Assessment of Dust from Demolition and Construction one roadside diffusion tube monitoring site, located at Chrisp Street/East India Dock Road junction, monitoring NO2 concentrations, close to the Proposed Development site. A summary of the latest available Guidance on the Assessment of Dust from Demolition and Construction 14 published by the Institute of Air data from that site is presented in Table 5.1. Quality Management (IAQM) was produced to provide guidance to developers, consultants and 3 environmental health officers on how to assess the impacts arising from construction activities. The Table 5.1 LBTH Diffusion Tube Annual Mean NO2 Concentrations (µg/m ) emphasis of the methodology is on classifying sites according to the risk of impacts (in terms of dust nuisance, PM10 impacts on public exposure and impact upon sensitive ecological receptors) and to identify Site ID Description 2015 2016 2017 mitigation measures appropriate to the level of risk identified. 76 Chrisp Street/East India Dock Road 51 48 49 4.6.2 Mayor of London’s Supplementary Planning Guidance for the Control of Dust and Emissions during *Bold denotes exceedance of the relevant NAQO Construction and Demolition
This Supplementary Planning Guidance15 (SPG) builds on the voluntary guidance published in 2006 by the The monitoring results presented in Table 5.1 for the last three years indicate exceedances of the annual London Councils to establish best practice in mitigating impacts on air quality during construction and mean objective. The site is located near the busy junction of Chrisp Street and the A13 East India Dock demolition work. The SPG incorporates more detailed guidance and best practice, and seeks to address Road, with the monitored concentrations likely to reflect the localised conditions to that area and not emissions from Non-Road Mobile Machinery (NRMM) through the use of a Low Emission Zone, which was represent the Site as a whole. introduced in September 2015. There is currently no monitoring of Particulate Matter undertaken in the vicinity of the Proposed The SPG provides a methodology for assessing the potential impact of construction and demolition Development. activities on air quality following the same procedure as set out in the IAQM guidance. It then identifies the relevant controls and mitigation measures that should be put in place to minimise any adverse impacts, 5.4 Defra Background Maps which need to be set out, in draft, in an air quality assessment report submitted with the planning application, and then formalised post submission as an Air Quality and Dust Management Plan. Details of Additional information on estimated background pollutant concentrations has been obtained from the 17 site air quality monitoring protocols are also provided with varying requirements depending on the size of DEFRA background maps provided on UK-AIR, the Air Quality Information Resource . These maps are the site and the potential risk of adverse impacts. available in 1km x 1km grid squares and provide an estimate of concentrations between 2017 and 2020. Concentrations have been taken from the grid square that includes the Proposed Development site and the 4.6.3 Tower Hamlets Code of Construction Practice identified sensitive receptors. Estimated air pollution concentrations for NO2, PM10 and PM2.5 have been extracted from the 2015 background pollution maps for 2018 and are set out in Table 5.2. All of the annual LBTH’s Code of Construction Practice (CoCP) document16 sets out the standards and procedures for mean background concentrations are well below the relevant objectives. managing the environmental impacts of construction major projects and small scale construction within the borough. Section 7 within the document discusses the dust, air quality and asbestos requirements of Table 5.2 Annual Mean Background Concentrations from Defra based for 2018. developments within the borough. Background Concentrations (μg/m3) Grid Square NO2 PM10 PM2.5 537500, 181500 27.3 18.4 11.4
14 Environmental Protection UK and Institute of Air Quality Management (Version 1.2 Updated January 2017). Land Use Planning & Development Control: Planning for Air Quality 15 Mayor of London (July 2014): The control of dust and emissions during construction and demolition --- Supplementary Planning Guidance. 16 Available at: https://www.towerhamlets.gov.uk/Documents/Consumer-affairs/Investigation,-inspections-and-monitoring/Monitoring/cocp.pdf 17 Available at http://uk-air.defra.gov.uk
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5.5 London Atmospheric Emission Inventory Maps Proposed Works Summary and Timetable
The London Atmospheric Emissions Inventory (LAEI) provides estimates of key pollutants (NO2, PM10, PM2.5 6.1 Summary of the Construction Programme and CO2) for the base year 2013 and projected forward to 2020, 2025, and 2030. The LAEI 2013 was published in 2016. However, due to revised road transport emission factors (COPERT 5) the data has been further updated in April 2017. The data is provided at a resolution of 20m x 20m for the whole of Greater A summary construction programme of each activity stage and the predicted timescales to undertake these London area within the M25 boundary. works is shown below in Table 6.1. The works are set to begin in 2019 with the completion of the second phase in 2027.
NO2 and PM10 concentrations for the year 2020 have been obtained for a grid covering the Site defined by: Table 6.1 Construction timetable for each phase of the Proposed Development X(m) min: 537740 X(m) max: 537960 Timescales – Demolition to Phase Blocks Y(m) min: 180020 Y(m) max: 180300 Handover A, B and C Sep 2019 to Jan 2024 Concentrations are presented in Table 5.3 for the maximum, minimum and average concentrations across the Site. D Sep 2019 to Oct 2022 E Sep 2019 to Oct 2022 Table 5.3 LAEI 2020 Concentrations at the Proposed Development Site. Phase 1 F and G Oct 2023 to Aug 2027 3 Concentrations (μg/m ) M Aug 2019 to Apr 2022 Pollutant Maximum Minimum Average H Aug 2020 to June 2024
NO2 44.7 30.0 32.6 Phase 2 J, K L Dec 2022 to May 2027
PM10 27.8 23.8 24.5 6.2 Construction Methods to be used in each Stage of the Development
Maximum LAEI 2020 NO2 concentrations correlate with the existing diffusion tube monitoring at Chrisp Street as seen in Table 5.1. Therefore it is likely that the concentrations seen in the Table 5.3 give a good Construction methods to be used on site and timescales for the works are provided below. representation of the likely concentrations across the whole site. It is therefore considered that existing Demolition concentrations are below the relevant standard for NO2 and PM10 across the majority of the site.
Existing utilities will be identified and protected; 5.6 Site Specific Diffusion Tube Monitoring for NO2 Relevant surveys will be conducted such as for asbestos and soils; A 3-month diffusion tube monitoring is currently being undertaken to measure the concentrations across the External hoardings will be constructed at the site perimeter including temporary walkways where Site. necessary for public protection. Hoarding will be 2.4m in height, secured by timber posts and concrete blocks; The results of this monitoring are expected in June. If necessary, this document will be updated to reflect any significant changes in the overall air quality situation at the Site. Internal strip out of existing buildings and removal of asbestos (if required); External scaffolding to be erected and polythene sheeting used to enclose existing structures; Removal of mechanical plant to be recycled offsite; Demolition of building on a floor by floor basis; o Soft strip of building first using chutes, skips and rigid rucks to remove the waste/rubble from the site. Waste will be segregated and recycled where possible; o Mechanical mini breakers will be used to demolish the superstructure from second floor to roof level, with tracked excavators and long reach mechanical breakers used to demolish the lower floors; Access points for demolition vehicles and material collection will be within the site hoardings and vehicles will be cleaned with high pressure hoses prior to exiting the site.
Substructure and Basement Levels
Excavation and breaking out of old foundations will be done using hydraulic machines and small plant; Structural works will be completed using HGVs for Steel Reinforcement deliveries, mobile cranage and concrete pumps.
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Basements will be constructed within a secant piled wall. Piles will be installed using large piling rigs. Construction Phase Methodology Once the perimeter is completed, large diameter load bearing piles will be installed. The equipment used will comprise 100 Tonne Piling Rigs and Services Cranes; It is inevitable that with any development, demolition and construction activities would cause some Concrete works will provide new basement slabs and basement perimeter walls; disturbance to those nearby. Dust arising from most construction activities tends to be of a coarse nature, Wheel washing facilities will be established and maintained for delivery vehicles accessing the site; and which through dispersion by the wind, can lead to soiling of property including windows, cars, external paintwork and laundry. Deliveries will be managed and scheduled to ensure minimal disruption to the local highways. The ability of dust particles to remain suspended in the air depends on its shape, size and density. Coarse Superstructure particles (>30μm) tend to be deposited within 100m of source. Finer particles, between 10-30μm, are generally deposited within 200 to 500m of source, while very fine particles (<10μm), which remain The superstructure of each building will be constructed using Tower Cranes which will be located in the suspended for longer, can travel up to 1km from source. The greatest proportion of construction dust is allocated podium areas; made up of coarse particles, thus the majority of dust emissions are deposited within 100m of source. The superstructure will be completed by erecting the main core, followed by the structural concrete frame and then the building envelope; and As well as giving rise to annoyance due to soiling of surfaces from dust emissions, there is evidence of major construction activities causing increases in long term PM10 concentrations and in the number of days Hoists will be used to transport materials and operatives. High pressure pumps will deliver concrete from 3 exceeding the short term PM10 objective of 50μg/m . The potential for impacts to occur during the the ground to the relevant work levels and additional staircases will be built for emergency routes. construction of a proposed development must therefore be considered, to ensure appropriate mitigation measures are applied to reduce potential impacts at adjacent receptors. However, it should be noted that Envelope, Roof, Shell and Core disruption due to demolition and construction is a localised phenomenon and is temporary in nature.
All blocks except H will be traditionally brick built laid from scaffolding; During the construction of the Proposed Development, lorries would require access to the site to deliver Bricks will be delivered by HGVs and stored on site, mortar will be batched and mixed on site; and remove materials; earthmoving plant and other mobile machinery will work on site and generators and cranes will also be in operation. These machines produce exhaust emissions; of particular concern are Block H will be completed using unitised cladding. Cladding will be delivered on Flat Bed HGVs and emissions of NO2 and PM10. unloaded using Tower Cranes on pallets. The assessment of construction impacts has followed the methodology set out within guidance produced Fit Out and External Works by the Greater London Authority (GLA) and the Institute of Air Quality Management (IAQM) on assessing impacts from construction activities and is set out below. Retail units will be completed to the Shell and Core stage, with fit out to be completed by the occupier; Apartments will be completed to the internal fit out standards and priorities; 7.1 Prediction Method and Approach External hard and soft landscaping will be completed prior to occupation and in line with the phasing In order to assess the potential impacts, the activities on construction sites are divided into four categories. strategy. These are:
Demolition (removal of existing structures); Earthworks (soil-stripping, ground-levelling, excavation and landscaping); Construction (activities involved in the provision of a new structure); and Trackout (the transport of dust and dirt from the construction site onto the public road network where it may be deposited and then re-suspended by vehicles using the network).
For each activity, the risk of dust annoyance, health and ecological impact is determined using three risk categories: low, medium and high risk. The risk category may be different for each of the four activities. The risk magnitude identified for each of the construction activities is then compared to the number of sensitive receptors in the near vicinity of the site in order to determine the risks posed by the construction activities to these receptors.
Step 1: Screen the Need for an Assessment
The first step is to screen the requirement for a more detailed assessment. An assessment is required where there is:
A 'human receptor' within 350m of the boundary of the site or 50m of the route(s) used by construction vehicles on the public highway, up to 500m from the site entrance(s); and/or An 'ecological receptor' within 50m of the boundary of the site; or 50m of the route(s) used by the construction vehicles on the public highway, up to 500m from the site entrance(s).
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Step 2A: Define the Potential Dust Emission Magnitude Step 2B: Defining the Sensitivity of the Area
This is based on the scale of the anticipated works and the proximity of nearby receptors. The risk is The sensitivity of the area is defined for dust soiling, human health (PM10) and ecological receptors. The classified as small, medium or large for each of the four categories. sensitivity of the area takes into account the following factors:
Demolition: The potential dust emission classes for demolition are: The specific sensitivities of receptors in the area; The proximity and number of receptors Large: Total building volume >50,000m3, potentially dusty construction material (eg Concrete), on site In the case of PM10, the local background concentration; and, crushing and screening, demolition activities >20m above ground level; Site specific factors, such as whether there are natural shelters, such as trees, to reduce the risk of Medium: total building volume 20,000m3 - 50,000m3, potentially dusty construction material, demolition wind-blown dust. activities 10-20m above ground level; and Small: total building volume <20,000m3, construction material with low potential for dust release (eg Table 7.1 is used to define the sensitivity of different types of receptors to dust soiling, health effects and metal cladding or timber), demolition activities <10m above ground, demolition during wetter months. ecological effects.
Earthworks: This involves excavating material, haulage, tipping and stockpiling. The potential dust Table 7.1 Examples of Factors Defining Sensitivity of an Area emission classes for earthworks are: Sensitivity of Area Dust Soiling Human Receptors Ecological Receptors Large: Total site area >10,000m2, potentially dusty soil type (eg clay, which would be prone to Users can reasonably expect Locations with an suspension when dry due to small particle size), >10 heavy earth moving vehicles active at any one time, enjoyment of a high level of international or national formation of bunds >8m in height, total material moved >100,000 tonnes; amenity. designation and the Medium: Total site area 2,500m2 - 10,000m2, moderately dusty soil (eg silt), five - ten heavy earth moving The appearance, aesthetics 10 – 100 dwellings within designated features vehicles active at any one time, formation of bunds 4m - 8m in height, total material moved 20,000 or value of their property 20m of site. may be affected by would be diminished by dust soiling. tonnes- 100,000 tonnes; and soiling. Local PM10 Locations where there 2 Small: Total site area <2,500m , soil type with large grain size (eg sand),
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Sensitivity of Area Dust Soiling Human Receptors Ecological Receptors Annual Mean Distance from the Source (m) Receptor Number of PM10 The enjoyment of amenity Sensitivity Receptors Concentrations <20 <50 <100 <200 <350 would not reasonably be Locations with a local expected. designation where the 10-100 High Medium Low Low Low Property would not features may be 24-28μg/m³ 1-10 Medium Low Low Low Low reasonably be expected to affected by dust Locations where human be diminished in appearance, deposition. >100 Medium Low Low Low Low exposure is transient. aesthetics or value by soiling. No receptors within 20m. <24 g/m³ 10-100 Low Low Low Low Low There is transient exposure, eg Local Nature μ Local PM10 where the people or property Reserve with dust 1-10 Low Low Low Low Low concentrations well Low would reasonably be sensitive features. below the objectives >10 High Medium Low Low Low expected to be present only (less than 75%). >32μg/m³ for limited periods of time as eg public footpaths, 1-10 Medium Low Low Low Low part of the normal pattern of playing fields, parks and use of the land. >10 Low Low Low Low Low shopping streets. 28-32μg/m³ eg playing fields, farmland 1-10 Low Low Low Low Low unless commercially sensitive Medium horticultural, footpaths, short >10 Low Low Low Low Low 24-28μg/m³ lived car parks and roads. 1-10 Low Low Low Low Low
>10 Low Low Low Low Low <24μg/m³ Based on the sensitivities assigned to the different receptors surrounding the site and numbers of receptors 1-10 Low Low Low Low Low within certain distances of the site, a sensitivity classification can be defined for each. Tables 7.2 to 7.4 Low ≥1 Low Low Low Low Low indicate the criteria used to determine the sensitivity of the area to dust soiling, human health and ecological impacts. Table 7.4 Sensitivity of the Area to Ecological Impacts Table 7.2 Sensitivity of the Area to Dust Soiling on People and Property Distance from the Source (m) Receptor Sensitivity Distance from the Source (m) <20 <50 Pollutant Concentrations <20 <50 <100 <350 High High Medium >100 High High Medium Low Medium Medium Low High 10-100 High Medium Low Low Low Low Low 1-10 Medium Low Low Low Step 2C: Define the Risk of Impacts Medium >1 Medium Low Low Low
Low >1 Low Low Low Low The final step is to combine the dust emission magnitude determined in step 2A with the sensitivity of the area determined in step 2B to determine the risk of impacts with no mitigation applied. Tables 7.5 to 7.7 indicate the method used to assign the level of risk for each construction activity. Table 7.3 Sensitivity of the Area to Human Health Impacts The identified risk of impact is then used to identify appropriate mitigation measures for inclusion within a Annual Mean Distance from the Source (m) Receptor Number of Dust Management Plan (DMP). PM10 Sensitivity Receptors Concentrations <20 <50 <100 <200 <350 Table 7.5 Risk of Dust Impacts from Demolition >100 High High High Medium Low Sensitivity of Area Large Medium Small >32μg/m³ 10-100 High High Medium Low Low High High Risk Medium Risk Medium Risk 1-10 High Medium Low Low Low High >100 High High Medium Low Low Medium High Risk Medium Risk Low Risk 28-32μg/m³ 10-100 High Medium Low Low Low Low Medium Risk Low Risk Negligible 1-10 High Medium Low Low Low >100 High Medium Low Low Low
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Table 7.6 Risk of Dust Impacts from Earthworks/Construction Construction Dust Impact Assessment Sensitivity of Area Large Medium Small High High Risk Medium Risk Low Risk 8.1 Dust Impacts during the Construction Phase of the Proposed Development
Medium Medium Risk Medium Risk Low Risk The Proposed Development site and the surrounding area is currently predominantly residential and community facilities in nature. Low Low Risk Low Risk Negligible Dust emissions from demolition/construction activities can result in significant impacts on ecologically Table 7.7 Risk of Dust Impacts from Trackout sensitive receptors within 50m of a construction site. A review of data held on the Defra’s MAGIC website18 shows no sites designated as important within 50m of the Site. Therefore, the construction phase dust impacts on this receptor have not been considered within this assessment. Sensitivity of Area Large Medium Small
High High Risk Medium Risk Low Risk As discussed in Section 5.5, the PM10 concentrations taken from the Defra Background and LAEI maps in the vicinity of the Site are expected to be below the relevant objective limits (Table 5.3). The data indicates 3 Medium Medium Risk Low Risk Negligible background PM10 concentrations are approximately 20 - 24μg/m .
Low Low Risk Low Risk Negligible The precise behaviour of the dust, its residence time in the atmosphere, and the distance it may travel before being deposited will depend upon a number of factors. These include wind direction and strength, 7.2 Significance Criteria of Construction Phase Impacts local topography and the presence of intervening structures (buildings, etc) that may intercept dust before it reaches sensitive locations. Furthermore, dust would be naturally suppressed by rainfall. As detailed in the assessment methodology, each activity during construction is assessed and the dust emission magnitude defined. The sensitivity of the surrounding area to potential impacts is then A wind rose from London City Airport meteorological station for the year 2017 is shown in Figure 3. We considered. The risk of dust effects is then identified based on the dust magnitude and sensitivity of consider this station as a representative of the Site. Figure 3 shows that the prevailing wind direction during surrounding area. This is then used to identify appropriate mitigation. 2017 was predominantly south-westerly. Areas most consistently affected by pollutants are influenced by prevailing winds that are generally located downwind of an emission source, and therefore these are likely to be to the north-east of the Site.
8.2 Potential Dust Emission Magnitude
The dust emission magnitude is based on the scale of anticipated works at the site and has been classified as small, medium or large for each of the four activities; demolition, earthworks, construction and trackout.
Based on the information available from the GLA and IAQM guidance on the assessment of dust from demolition and construction activities, we have qualitatively assessed the magnitude of dust emissions during of each activity and summarised in Table 8.1.
The demolition and construction of the Proposed Development will be phased, however the assessment is considering the total magnitude of the development as a whole, assuming that is will all occur at once for a worst case assessment.
Demolition
Demolition is described as any activity involved with the removal of an existing structure. This may also be referred to as de-construction, specifically when a building is to be removed a small part at a time.
Approximately 24,000m3 of demolition material is predicted to be generated during the demolition phase. It is likely that the buildings to be demolished are comprised of dusty materials including brick and concrete and demolition will occur at heights between 10 – 20m. It is considered that, the potential dust emission magnitude would be ‘Medium’ for demolition activities.
18 Available at http://magic.defra.gov.uk/MagicMap.aspx?
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Earthworks Site-specific factors ie whether there are natural shelters such as trees, to reduce the risk of wind-blown dust. Earthworks are those activities involved in preparing the Site for construction such as excavation of material, including excavation of the basement and removal of material, haulage, tipping, stockpiling and Based on the IAQM guidance residential dwellings and school are considered as 'High' sensitivity receptors levelling. while commercial areas or places of work are ‘Medium’ sensitivity receptors in relation to both dust soiling and health effects of PM10. The Site covers an area of >10,000m2. It will involve excavation of ground material to allow for the new basement levels. It is considered that, the potential dust emission magnitude would be ‘ ’ for Large The Proposed Development and the surrounding area is predominantly residential in nature, therefore, it is earthwork activities. considered that the receptors are of high sensitivity.
Construction As seen in Figure 4, there are >10 high sensitive receptors within the 20m buffer of the Site and more high sensitive receptors within the 50m buffer and downwind of the Site. As a result, given the distance and There are a number of issues that can impact the dust emission class during construction activities number of these receptors, the sensitivity of the surrounding area is considered to be ‘High’ in relation to including the size of the building, materials used for construction, the method of construction and the dust soiling effects on people and property from the demolition, earthworks and construction activities. duration of the build. The resulting sensitivity of receptors in the surround areas is summarised in Table 8.2 below. Based on the current design layout the total building volume for the site will be 25,000 – 100,000m3. There Table 8.2 Sensitivity of Receptors will be on-site concrete batching and blasting. The construction works will include piling, substructure and superstructure construction, fit out and building services works. Given the scale of the Proposed Development, it is considered to have a dust emission class of ‘Medium’ with regards to construction Potential Impact Sensitivity at Site activities. Receptor sensitivity High
Trackout Dust Soiling Number of receptors 10-100 within 20m Sensitivity of the area High The risk of impacts occurring during trackout is predominantly dependent on the number of vehicles accessing the site on a daily basis. However, vehicle size and speed, the duration of activities and local Receptor sensitivity High geology are also factors which are used to determine the emission class of the site as a result of trackout. 3 Annual mean PM10 concentration < 24 μg/m Human Health According to the Transport Assessment (TA) provided for the Environmental Statement submitted for Number of receptors 10-100 within 20m Chrisp Street dated June 2016, a worst case assessment of the number of construction vehicles added to the local road network during the busiest period of construction has been provided. There will be a number Sensitivity of the area Low of access points for the Site, changing in line with the relevant phasing. As such all roads surrounding the market are predicted to be impacted by the construction traffic. Based on the figures in the TA, the Trackout may occur from the side of the roads used by the construction traffic and up to 50m from the Site maximum number of vehicles per day would be 140 HGVs along Chrisp Street and East India Dock Road, access point from a small site. Based on the road layout it is understood that the construction traffic will with all roads predicted to exceed an additional 50 AADT. This is a worst case assessment and the amount have direct access to the Proposed Development site all roads surrounding Chrisp Street Market, with the of vehicles and local roads affected will vary throughout the demolition and construction period. access points changing with the relevant phasing.
The resulting magnitude of emissions from trackout activities are therefore considered to be ‘Large’. As can be seen from Figure 5, there are a number of high sensitivity receptors within 20m of the trackout route. As such the sensitivity of trackout with respect to dust soiling is considered to be ‘High’. Table 8.1 Summary of Dust Emission Magnitude for Each Activity Table 8.3 Summary of Sensitivity of Surrounding Area Source Magnitude Sensitivity of Surrounding Area Demolition Medium Potential Impact Earthworks Large Demolition Earthworks Construction Trackout Construction Medium Dust Soiling High High High High Trackout Large Human Health Low Low Low Low
8.3 Sensitivity of the Surrounding Area
The sensitivity of the surrounding area takes into account the following factors:
The specific sensitivities of receptors in the area; The proximity and number of those receptors; In the case of PM10, the local background concentrations; and,
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8.4 Defining the Risk of Impacts Measures to Control Dust and Emissions during Construction and The dust emission magnitude (as set out in Table 8.1) is combined with the sensitivity of the area (Table 8.3) Demolition Phase to determine the risk of both dust soiling and human health impacts, assuming no mitigation measures applied at the Site. Each risk is a conservative assessment as the magnitude is based on the entire Appropriate measures set out below have been adopted from GLA’s SPG and IAQM Guidance will be demolition and construction activities across the Site occurring simultaneously, whereas in reality, only a implemented to ensure that air quality impacts of construction and demolition activities are minimised and small section of the Site will have operations occurring at any one time. any mitigation measures employed are effective. The risk of impacts associated with each activity are provided in Table 8.4 below and have been used to 9.1 Site Management identify site-specific mitigation measures, which are set out in Section 9 of this report. The site management practises, set out below, would be followed to ensure that the Site is responsibly Table 8.4 Summary of Risk Effects to Define Site Specific Mitigation managed during the demolition and construction phases of the Proposed Development.
Risk 9.1.1 Stakeholder Engagement Potential Impact Demolition Earthworks Construction Trackout A stakeholder communications plan would be developed that includes community engagement before work Dust Soiling Medium Risk High Risk Medium Risk High Risk on the Site commences. Human Health Negligible Risk Low Risk Low Risk Low Risk It is important to ensure that those sensitive to the impacts (ie residential receptors) are notified and consulted before work commences and that they have an easy and effective mechanism for informing the 8.5 Construction Traffic developer of their concerns and issues;
Construction related transport, including all deliveries from HDVs and workers travelling to the construction Contact details for the person responsible for dust and emissions generated from the Site will be displayed site and Non Road Movable Machinery (NRMM) or site plant, has the potential to give rise to increased on the Site boundary at regular intervals so that local residents and businesses are able to contact the pollutant concentrations resulting from the associated road transport emissions and diesel engines. These relevant person/team to raise any issues that they may have and report complaints. Site Manager or the emissions are short term and typically last for the duration of the construction works, however nearby deputy will be responsible for management of dust emissions on the Site (‘Site Manager/Nominated sensitive receptors can be impacted by those emissions. Person’).
The 2017 IAQM planning guidance presents that a detailed air quality assessment is required where an A log book recording any complaints received should be kept and made available to the Local Authority increase of more than 25 daily HDV trips occurs within an AQMA as a result of the development. According should this be requested - all complaints should be responded to. to the TA, dated June 2016, the worst case peak busy period number of HGVs added to the local road would be 140 AADT. Due to the phased nature of the Proposed Development, the Site access is likely to The potential cumulative effects of emissions from several development sites will be considered and change and as such every road surrounding the Chrisp Street Market is likely to be affected. managed between the sites, where appropriate.
A detailed assessment of construction traffic impacts was undertaken as part of the Air Quality Assessment 9.1.2 Site Inspections and reported within the Environmental Statement for the Proposed Development. The results of the assessment showed that the worst case impact of the construction traffic would be ‘small adverse’. As The Nominated Person will actively monitor the Site to ensure the control of dust and emissions. Dry and such relevant steps should be included as per the mitigation section below to minimise the risk of impact. windy conditions increase the likelihood of dust and emissions being produced and dispersed, so extra precautions will take place during these times.
The frequency of site inspections would be increased by the Nominate Person when activities with a high potential to produce dust and emissions and dust are being carried out, and during prolonged dry or windy conditions,
Any exceptional incidents that could cause dust and air quality pollutant emissions would be recorded, either on or off the Site, and the action taken to resolve the situation is also recorded in the log book.
9.2 Preparing and Maintaining the Site
The way in which a site is prepared and maintained can have a significant impact on the control of dust and emissions. Below are some measures that will be used to minimise emissions from the Proposed Development.
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9.2.1 Site layout 9.3 Reducing Emissions from Vehicles
When planning their construction works developers will aim to: Emissions from vehicles associated with construction sites can significantly add to levels of local air pollution, so it is important that best practice is employed to reduce these. Locate machinery and dust generating activities away from receptors; Create a physical distance and/or barrier between dust/emission generating activities and receptors, as 9.3.1 Reduce Vehicle Idling described in Section 6 this will include relevant walkways to protect public footpaths; The Site will be managed so that vehicles do not have to wait to park safely. However, should vehicles Install solid screens or barriers around dust generating activities. As described in Section 6 these will be have to wait they would not idle. Generally, if a vehicle is stationary for more than a minute, turning off the 2.4m high and secured to timber panels and concrete blocks; engine will reduce emissions and fuel costs. Stockpiles will be covered/seeded to prevent wind whipping; and, Loose materials will be removed as soon as possible. 9.3.2 Construction Logistics Plan Deliveries to construction sites can contribute greatly to congestion and emissions at and around sites. 9.2.2 Green Infrastructure Construction Logistics Plan (CLP) would be developed and implemented as part of wider transport assessment for the Proposed Development. A CLP is a framework that allows deliveries and removals to The benefit of vegetation in reducing the impacts of air pollutants is still being researched. However, be managed so that they are made when they are most needed, at times when they will contribute less to several studies show a positive impact. Site operators are encouraged to install green walls, screens and congestion and at locations where loading and unloading can take place safely. The CLP for the Site other vegetation to minimise the impact of dust/pollution and also to improve the local environment during would help site managers to: construction. Cut congestion in the local area, reducing the environmental impact of deliveries and inconvenience to 9.2.3 Site maintenance local road users; Developers will keep their construction sites in good order. The below measures would be considered: Save time and money; Improve the safety of deliveries; and, The Site or construction area would be bunded to prevent runoff. Runoff and mud would be avoided as Improve delivery reliability. it can lead to dust once dry as well as polluting local waterways and sewers; Hoardings, fencing, barriers and scaffolding would be regularly cleaned using wet methods, where The CLP will be tailored to the Site’s requirements and its local context, including the location of sensitive possible to prevent re-suspension of particulate matter. Water will be collected for reuse and the use of receptors. Things that would be considered include: recycled and non-potable water will be maximised; Looking at where legal loading can take place; Regular checks of buildings within 100m of the site boundary would be carried out to check for soiling Create specific loading and unloading areas; due to dust with cleaning carried out, where necessary; and, Using freight operators who can demonstrate their commitment to best practice; Require a change of shoes and clothes by staff and visitors before going off-site to reduce the transport Consolidating deliveries so fewer journeys are needed; and, of dust or provide cleaning facilities such as showers or boot cleaners, where appropriate. Using sustainable delivery methods, such as via a canal or railway (if possible). 9.2.4 Dealing with Spillages 9.3.3 Travel Plans Spillages can occur with a wide range of liquid and materials, including those which are hazardous. The following measures will address this issue: Measures to be set out in travel plans would include schemes that encourage workers not to use single- occupancy cars to travel to and from the Site but instead to cycle, walk, use public transport or car share. Use bunded areas wherever practicable; Reducing car miles not only reduces emissions but can produce financial benefits and productivity improvements, saving both the business and its staff money and time. Regularly inspect the site area for spillages; Have spillage kits readily available; Guidance produced by DfT on Workplace Travel Plans will be used. This guidance is available at: Clean spillages using agreed wet handling methods; www.dft.gov.uk/pgr/sustainable/travelplans/work/essentialguide.pdf Vacuum or sweep regularly to prevent the build-up of fine waste dust material, which has spilled on the Site and is designated as waste that is no longer required; 9.3.4 Diesel or Petrol Generators Fit for use - this should be dealt with in accordance with the Waste Management Licensing Regulations Even modern diesel or petrol powered plant items emit higher levels of PM and NOx than electric (WMLR), 1994; and, equivalents. Therefore, wherever possible, renewable, mains or battery powered plant items would be Inform the Environment Agency, Fire and Emergency Planning Authority or the Health Protection Agency used. (HPA) if harmful substances are spilled. More information is provided by the Environment Agency in Pollution Prevention Guideline 6. (https://www. gov.uk/government/organisations/environment-agency).
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9.4 Operations Set up a dedicated store for timber, from which workers can re-use supplies; Store any materials away from sensitive locations in fenced off areas; 9.4.1 Cutting Grinding and Sawing Label all waste storage areas and skips, detailing the type of waste; Ideally, cutting, grinding and sawing would not be conducted on-site and prefabricated material and Employ a just-in-time policy to deliver materials in order to reduce the storage time on-site; modules would be brought in, where possible. In cases where such work must take place, spraying water, Consider using recycled materials and recycle any materials used on site rather than disposing of them preferably from a water efficient spray pump, over the material as it is being cut would be employed to (including timber, aggregates, soil, tarmac, bricks, masonry, concrete and glass). The BRE Smart Waste reduce the amount of dust generated. management tool (www.smartwaste.co.uk) is an on line template contractors can use to input data on the amount and type of waste and it will be sorted by the tool. CIRIA provides lists of recycled materials Scabbling is the process of grinding concrete using a machine tipped with steel or carbide material to rapidly pound it. The following measures should be in place to comply with best practice: that companies will accept. Any materials re-used, however, should be suitable for purpose, for example any suspected contaminated soil should not be re-used until it has been tested first; and, Pre-wash work surfaces; If practicable, remove materials for recycling from buildings prior to demolition or from demolition spoil. Screen off work areas; and, Sweeping away. 9.6 Mitigation Measures Specific to Demolition
9.4.2 Mobile Crushing Plant Demolition activities can generate significant dust and also cause resuspension of dust currently within the building. The following measures should be put in place to reduce the dust emission impact: This is an inherently dusty activity and will often take place on the sites normally classed as medium or high risk dust emission sites. Based on the information from the Client, there is no on-site crushing’. Therefore, Soft stripping is an effective way of screening dust and preventing dispersion, outer walls should be no measures are recommended. retained to act as screens; Water suppression should be used to damp down dust and other debris that could generate dust; and 9.4.3 Concrete Batching Where practical, manual or mechanical demolition techniques should be used. Blasting should be avoided in order to control dust. As for mobile crushing plants, construction sites with concrete batching plants will often be categorised as medium or high risk. Based on the information from Client, there is ‘no’ onsite concrete batching proposed. Therefore, no measures are recommended. However, if onsite concrete crushing and screening is 9.7 Measures Specific to Earthworks undertaken, the conditions within the relevant Environmental Permit should be complied with. Following earthwork activities it is important to reduce the generation and resuspension of dust through re- 9.4.4 Chutes, Conveyors and Skips vegetating exposed areas and soil stockpiles to stabilise surfaces. Where this is not possible, hessian and/or mulches to re-vegetate or cover with topsoil will be used. Skips, chutes and conveyors would be covered and, if necessary, completely enclosed to ensure that dust does not escape. Similarly, drop heights would be minimised to control the fall of materials. 9.8 Measures Specific to Construction
9.5 Waste Management It is important that cement, sand, fine aggregates and other fine powders are sealed after use and should be stored in enclosed or bunded containers or silos. Some materials would be kept damp to reduce the 9.5.1 Bonfires risk of drying out.
Taking into account the Clean Air Act 1993 and nuisance legislation (Environmental Protection Act 1990), it 9.9 Measures Specific to Trackout is recommended that: 9.9.1 Haul Routes Bonfires are prohibited; Unpaved haul routes can account for a significant proportion of fugitive dust emissions, especially in dry or No burning of any material is permitted on-site; and, windy conditions, when the generation of dust through the movement of vehicles is exacerbated. It is Any excess material should be reused or recycled on or off-site in accordance with appropriate recommended that to comply with good practice, Nominated Person would as far as possible ensure that legislation. hard surfaces or paving are used for all haul routes, even if routes are temporary.
9.5.2 Waste and Recycling Plans It is important that haul routes and local access roads are kept free of dust as far as possible and are swept regularly. Where possible, this would be water-assisted to increase damping down. However, care would If required, a waste and/or recycling plan would be prepared for the Site. The Environment Agency be taken to not to contaminate sewers or local waterways. suggests that a waste plan includes the following best practise procedures: 9.9.2 Wheel Washing Identify the waste types that are likely to be produced and aim to reduce the amount of waste as much as possible, through identifying routes to reuse or recycle materials. The Waste and Resources Action Vehicles, in particular wheels, would be washed or cleaned before leaving the Site. A wheel wash facilities would be installed, preferably with the application of rumble grids to dislodge accumulated dust and mud. programme (WRAP www.wrap.org.uk) provides a list of ten quick wins for reducing and re-using waste; Ideally the route from the wheel wash to the public road should be a paved. Where layout permits, the site Control access to storage areas to minimise risk of theft or damage; access gates should be located at least 10m from receptors.
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9.9.3 Covering Vehicles Monitoring Residual Impacts All vehicles carrying dusty materials will be securely covered before leaving the site, to prevent dust spilling on the road and being swept away by the wind. 10.1 General
9.9.4 Dust Suppressants Environmental monitoring during construction projects can be beneficial and can be used to:
The use of dust suppressants (Calcium Magnesium Acetate) at road sides and along roads close to and Demonstrate the efficacy of mitigation measures; within construction and industrial waste sites with high levels of local PM10 pollution would be considered, if Reduce costs by effective targeting of mitigation measures; appropriate. Demonstrate compliance with regulatory or other standards; Demonstrate a commitment to reduce environmental impacts; Reduce complaints from site staff and the public; Reduce potential for conflict with regulators; and, Speed up dispute resolution.
Sites for which monitoring is particularly likely to be beneficial include large or long-term sites in sensitive areas (eg residential), contaminated sites, and sites in sensitive air quality areas, such as AQMAs.
Monitoring regimes can range from real-time, continuous monitoring to the visual assessment of dust generation, depending on the risks identified for the respective construction activities.
Given the medium risks of the proposed construction works, site specific monitoring is required to demonstrate the efficacy of mitigation measures.
For the duration of demolition and construction activities, monitoring will be undertaken as detailed in the below sections.
10.2 Proposed Dust Monitoring
10.2.1 Visual Inspection
Visual assessment of dust generation will be undertaken at regular intervals throughout the working day, by the Site Manager. If dust is noticed, or there is deemed to be a ‘dust episode’ then this will be documented in the site logbook, the entry to include:
Time & date; Confirmation of any visible dust emissions; Remedial actions taken if emissions observed; and Wind direction and strength (a weather station, wind sock or a knowledge of the Beaufort Scale would assist in this).
Should any operatives observe that dust generated by onsite activities is transgressing off site, this should be reported to Site Manager/Nominated Person.
10.3 Automatic PM10 Monitoring
Based on the dust emission magnitudes and sensitivity of the local area and the size of the site, PM10 monitoring using Osiris nephelometers (or similar) at two locations, one downwind and one upwind will be utilised during the construction stages that have the highest potential for dust emissions. This will help determine if any increased particulate emissions are likely to be from the Site or part of a regional episode. Monitoring for baseline concentrations should preferably begin three months prior to the works commencing.
It is proposed that the Osiris monitor be stationed at two relevant locations during the specific phase of the works, depending on the works being undertaken. The indicative monitoring locations are presented in Figure 6.
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Nephelometer instruments, such as Osiris, are not a reference equivalent method for the determination of Where data is held on an online platform such as that for the Osiris monitors, LBTH will be provided with the airborne particulates, however, they do provide continuous data in near real-time that may be related to site login details. events and are considered by many regulators as an appropriate and economical technique for this type of application. The frequency of reporting may be amended if agreed by all parties.
These instruments measure continuous concentrations of the PM10 fraction of suspended particle matter 10.5 Instrument Malfunction and these data are posted to a website, to allow ‘on request’ examination of unratified data. Where continuous erroneous data is noted, or no data is recorded due to instrument malfunction or failure 3 A Site Warning Level (SWL) of 200g/m (15-minute average PM10 ambient concentration) will be of the modem to connect to website for a continuous period of 24hrs, an air quality specialist from MLM implemented. If this is reached, a warning email will be sent to the air quality team at MLM and the will attend the site within five working days. If the problem can’t be solved on site, a replacement Osiris Nominated Person on the Site. The Site Manager/Nominated Person will review the mitigation measures monitor or similar will be provided within ten working days. implemented at that time to ensure best practice measures are in place.
3 A Site Action Level (SAL) of 250g/m (15-minute average PM10 ambient concentration) will be adopted for the Site. If this level is reached, an instantaneous email will be sent to the air quality team at MLM, and the Site Manager/Nominated Person.
Where the site threshold for PM10 is being significantly breached (two 15-minute average exceedances in two consecutive 15-minute runs) Site Manager/Nominated Person should stop work immediately and ensure best practice measures are in place before restarting. Where there are breaches of the PM10 threshold local authorities can use their powers to prevent the statutory nuisance.
A review of the monitoring and reporting methods will be undertaken if the PM10 concentrations are consistently low (below 250g/m3), in consultation with the Local Authority, to determine whether to continue monitoring PM10 on the Site. For example, a meeting may be called with all parties present to discuss the action levels, if it is determined they need to be altered in any way.
If the Site Manager/Nominated Person receives an email stating that the SAL has been exceeded they will:
Review the activities on site and determine if there is dust being generated from on-site activities; Identify if the exceedance is deemed to be from the site activities, and if so ensure that additional mitigation is applied as soon as is practicable;
These additional mitigation measures will remain in place until a time that the ambient PM10 concentrations are below the SAL; If the exceedance is deemed to be from the site activities, this shall be recorded in the site logbook and LBTH will be notified as soon as is practicable after the incident; Where it is deemed that the source of the SAL exceedance is not a result of on-site activities, then the
concentrations measured on site will be compared to the PM10 concentrations measured at nearby automatic monitoring stations, so as to identify any region-wide pollution episodes. LBTH will be notified at the appropriate time.
Where the Site Manager/Nominated Person is not able to carry out these tasks, they will ensure a deputy is on the Site in his/her absence.
Automatic monitoring is supplementary to the visual inspections and observations and not to be used as a replacement for the visual monitoring.
10.4 Reporting
Regular reports (quarterly) will provide automatic monitoring results. Reports will be sent by email to LBTH for information.
The reports will present the monitoring locations, methods and results, any deviations, complaints received and will make comparison with air quality criteria agreed with LBTH, and other standards, where appropriate.
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Implementation and Management Non-Road Mobile Machinery (NRMM) The Site Manager/Nominated Person shall be responsible for the control of environmental impacts of It is important to take action to reduce emissions from non-road mobile machinery (NRMM) to protect and construction activities. The Site Manager/Nominated Person shall be briefed and trained appropriately. A improve Londoners’ health. The latest version of the London Atmospheric Emissions Inventory estimates deputy will be appointed as the responsible person in his/her absence. that in 2010 the NRMM used on construction sites was responsible for 12% of NOx emissions and 15% of PM10 emissions in Greater London. As part of the air quality management regime, the Site Manager/Nominated Person will keep a site logbook documenting the maintenance of effective emissions control methods and details of any complaints or To address this significant contribution by non-road mobile machinery to London’s poor air quality the GLA incidents, and actions taken. will seek to control the emissions from this equipment from 2015 by establishing emissions standards for London. This will apply to development from 1st September 2015 and is included to give developers notice The Site Manager/Nominated Person shall liaise regularly with LBTH and other stakeholders, if required. so that they can develop their supply chain and so the boroughs can develop procedures to secure, monitor and enforce these standards through the planning system. Emissions control procedures and equipment will only work satisfactorily if carried out or used appropriately. The Site Manager/Nominated Person shall maintain good housekeeping and ensure that all 11.1 2015 Emission Standards equipment is well maintained and used appropriately.
From 1 September 2015 NRMM of net power between 37kW and 560kW used in London will be required to It is important that all site personnel are aware of the requirement for the control of environmental impacts, meet the standards set out below. This will apply to both variable and constant speed engines for both and appropriate training shall be given to all site personnel, covering: NOx and PM. These standards will be based upon engine emissions standards set in EU Directive 97/68/EC and its subsequent amendments. Health and environmental impacts of emissions to air; The benefits of controlling emissions to air; NRMM used on the site of any major development within Greater London will be required to meet Stage Emission control measures; IIIA of the Directive as a minimum; and Method statements; and, Importance of good communication. 11.2 2020 Emission Standards
From 1 September 2020 the following will apply:
NRMM used on any site within Greater London will be required to meet Stage IIIB of the Directive as a minimum.
The requirements set out above may be met using the following techniques:
Reorganisation of NRMM fleet; Replacing equipment (with new or second hand equipment which meets the policy); Retrofit abatement technologies; and Re-engineering.
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Figures
Figure 1: Site Location Plan
Figure 2: Site Location and Local Authority Monitoring points
Figure 3: Windrose from London City Airport meteorological station 2017
Figure 4: Construction Dust Buffer zones
Figure 5: Trackout Dust Buffer Zones
Figure 6: Indicative Osiris Monitoring Locations
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