Ruth Kinsey - Nottinghamshire

1

Ruth Kinsey

From: Richard Mills <[email protected]>Sent: 15 December 2016 15:20To: development managementSubject: CLASP Demolition REF 8/15/03017/CTY Conditions 9 & 10Attachments: Environment Management Plan v4 15.12.16.pdf

Hello Ruth, please find the updated Environmental management plan concerning the recording of noise levels before and during the demolition works. A further report of noise level recordings will be submitted once the actual demolition work begins. Many thanks

Richard Mills Building Surveyor

M 07753 625 270 T 0115 838 4883

E [email protected]

W www.arc-partnership.co.uk

Head Office: 4th Floor, City Gate East, Tollhouse Hill, Nottingham, NG1 5FS

Arc Property Services Partnership Limited (trading as arc partnership) is a joint venture between Nottinghamshire County Council and Scape Group. Arc Property ServicesPartnership Limited is registered in England and Wales. Company registration number 10074366. VAT registration number 239 5189 74.

rk18

Received

Environment Management Plan

Demolition of CLASP Block, County

Hall, Loughborough Rd, West

Bridgford, Nottingham NG2 7QP

For

Nottinghamshire County Council

Version 4 Issued: 15/12/16

Job Number: 8185

rk18

Received

Method Statement: CLASP County Hall, Nottingham

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Introduction

The site of the works is situated on a live council office site and car park, just off a main arterial route into

Nottingham city centre. Work involves site set up, asbestos removal, careful separation and demolition of

the CLASP Block and associated link corridors, ground works for the car park, reinstatements to H block

and Riverside and installation of a new bike shed.

Works will be phased to minimise the disruption to the parking area.

This Method Statement covers all of the control measures and safe working practices to enable the works

to be carried out in this highly sensitive business area.

• Site set up, exclusion boundary, tree protection and car park management.

• Establish safe pedestrian access to the Data centre and Riverside building.

• Establish dust protection scaffold to the Data block refrigeration plant.

• Asbestos removal in accordance with the Acorn Analytical demolition survey and removal

specification

• Demolition of the CLASP block, link corridors and car park planters

• Reinstatement work to the facades of the H block and Riverside building and temporary

protection there-to.

• Ground works for cycle storage provision.

• Conversion of the concrete raft foundation for temporary car parking

Site Location

CLASP Block, County Hall, Loughborough Road, West Bridgford, Nottingham NG2 7QP


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Contents

1. Lorry Routing for Construction Traffic .................................................................... 4

2. Measures to Prevent the Deposit of Debris on the Public Highway ........................ 4

3. The Segregation of Movements on Site .................................................................. 6

4. Measures for the Control of Noise, Vibration and Dust Emissions .......................... 7

5. Waste Segregation ............................................................................................... 15


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Introduction - Environmental Protection Act

CMEC Demolition Ltd recognises its Duty of Care under The Environmental Protection Act, the

Environmental Protection (Duty of Care) Regulations, The Controlled Waste (Registration of Carriers and

Seizure of Vehicles) Regulations, Special Waste Regulations and other associated statutory provisions.

“Controlled Waste” will only be released to a “Registered Carrier” after proof (original only) has been

produced by the “authorised person” all parts of the “Waste Transfer Note” will be suitably completed

with a copy remaining with CMEC Demolition Ltd for no less than 2 years.

Should “Special Waste” need to be removed from a project this too will only be released to a “Registered

Carrier” after the completion of a “Special Waste Transfer Note”. Pre-notification of the movement will be

given to the Environmental Agency and CMEC Demolition Ltd. will retain a copy of the SWTN for no less

than three years.

1. Lorry Routing for Construction Traffic

The works are situated at CLASP Block, County Hall, Loughborough Road, West Bridgford, Nottingham.

Our works have been programmed to comply with Nottinghamshire County Council’s specification to

maximise parking spaces still available during the works. Construction traffic routes / construction staff

routes / protection measures are as shown in the following three drawings for each relevant phase

(Drawing numbers 8185-001-01, 8185-001-02 & 8185-001-03).

Access / Egress

The access / egress point for the works will be via access points off Loughborough Road as indicated on the

Proposed Site Plan.

The routes will be maintained and kept clear at all times.

The utmost caution will be adopted when entering and leaving the site, owing to the close proximity of

pedestrians, especially shoppers, other road uses and visitors etc.

A traffic operative will be employed for the meet & greet, movements of plant / vehicles and all drivers of

construction traffic will adhere to the existing speed restriction areas.

2. Measures to Prevent the Deposit of Debris on the Public Highway

Haul Routes General

Un-paved haul routes can account for a significant proportion of fugitive dust emissions, especially in dry

or windy conditions, when the generation of dust through the movement of vehicles is exacerbated. It is

recommended that to ensure good practice, contractors should ensure that hard surfaces or paving is used

for all haul routes, which will be possible and the method used to minimise dust and the spread of debris in

this instance


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Actions taken:

• Wheel washing (pressure washer) on leaving site.

• Additional damping down of haul routes with water plus a suitable additive binder/suppressant if

necessary.

• Leave tarmac in place for all haul routes on site for as long as possible.

• Hard landscaping of haul routes or use of a suitable dust suppressant.

• Ensure there is no site runoff of water / mud.

Demolition Works

• Use water as dust suppressant

• Use water canon & sprays/misters at ground level

• Operating high reach demolition equipment with integral water spray capabilities

• Use enclosed chutes and covered skips

• Securely cover skips

• Wrap building to be demolished

• Cutting equipment to use water as suppressant or suitable LEV (local exhaust ventilation)

Demolition Traffic

• All vehicles to switch off engines – no idling vehicles

• Effective vehicle cleaning and specific wheel-washing on leaving site (pressure washer)

• All loads entering and leaving site to be covered

• Ensure no site runoff of water or mud

• All non road mobile machinery (NRMM) to use ultra low sulphur tax-exempt diesel (ULSD) where

available

• On-road vehicles to comply to set emission standards (e.g. Euro IV)

• Hard surfacing and effective cleaning of haul routes

• 5mph limit around site (higher limits may be appropriate dependant on the site)

Site Activities

• Minimise dust generating activities on windy and dry days.

• Use water as dust suppressant plus a suitable additive binder/suppressant where applicable.

• Cover, seed and fence stockpiles to prevent wind-whipping.

Prevention of Pollutants Entering the Surface Water Course

We presume that Nottinghamshire County Council currently hold an active license for the whole site area

permitting the discharge of surface water off site into the adjacent surface water course. Within this

license agreement we understand that there will be stipulated threshold levels for suspended solids etc

and daily water samples are taken for analysis to ensure the permit threshold values for discharge are not

exceeded.

There may also be the potential for hydrocarbon contaminated runoff associated with potential hydraulic

spills which can occur during demolition activities.

Prior to the demolition works commencing, we are proposing to implement the following measures to all

drains surrounding the perimeter of the buildings to be demolished:

• All drainage/ surface water gullies to be packed with straw.

• The drainage covers will be lifted and a layer of permeable geotextile (terram 1000 gauge) will be

placed on the concrete slab and over the opening before the covers are replaced.


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• The geotextile will sit in between the straw and the gulley cover. The geotextile will surround the

drainage cover by approximately 2m diameter.

• On top of the geotextile prior to the re-placement of the drainage/ gulley covers oil absorbent pads

will be placed to mitigate the potential for hydrocarbon impacted fluids to enter the surface water

courses should any hydraulic spills occur on site.

• Surrounding each drainage cover sat on the geotextile will be a small bund of 10mm clean stone

(no fines) wrapped in geotextile.

Should any rain/dust suppression required during the demolition activities, wash such materials towards

the drainage network. The measures detailed above will prevent particles from being discharged at

elevated levels off site. On a regular basis the accumulated sand around the

geotextile filtration system will be removed and the site surface swept clean.

The site drainage covers will be lifted on a regular basis to ensure the filtration system is working

effectively. The oil absorbent mats and the geotextile within the drains will be replaced/ cleaned as

required.

Should there be a significant difference in the water quality currently being discharged once the demolition

works has commenced then we will review our control measures.

Implementation of the appropriate mitigation measures above will help reduce the impact of the

construction activities to medium; or even low risk.

3. The Segregation of Construction Vehicle and Pedestrian Movements on Site

There will be separate, clearly sign-posted vehicular access and pedestrian only access gates as shown on

drawings 8185-001-P01 (Phase 1), 8185-001-P02 (Phase 2) & 8185-001-P03 (Phase 3).

The location of the site setup, including welfare units are shown on the above mentioned drawings.

Access to the site welfare and bunker bins location will be securely segregated from the main site.

The main point of pedestrian, construction staff, access will be via a pedestrian only access set into the

hoarding as indicated on the site plan.

Safe walk ways will be clearly marked and escape routes will be protected by safety fan hoardings as

shown in the drawings.

All vehicle access to the site will be under the assistance of a traffic operative. This will ensure that any

pedestrians accessing the site will be secure from the gate to the segregated route to the site

office/welfare.

Additional Project Specific Setup

• Asbestos Decontamination Unit

• Transit routes

• Asbestos Waste Disposal Skips.


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Site Security

CMEC Demolition will erect a 2.4m designed temporary solid hoarding to form a secure boundary with site

access from Loughborough Road, agreed with the Contract Administrator.

The main point of vehicle access will be as shown on attached drawings. All access gates will be locked at

all times to prevent unauthorised access. However, it is crucial that the area be inspected for trespassers

on a regular basis by the CMEC supervisor.

Access and egress to the site will be strictly controlled and only authorised personnel and site visitors will

be allowed on site.

Visitors to site MUST first report to the site office where they MUST sign in the site log and be inducted

into the site safety rules, site visitors will be accompanied by CMEC site representative at all times.

Visiting safety officers or HSE inspectors will be accompanied by CMEC Demolition site manager or

supervisor on their tour of the works and a copy of their report recommendations will be retained in the

site office.

4. Measures for the Control of Noise, Vibration and Dust Emissions - Including

Mitigation Measures in the Event of a Complaint

Protection of the Public

Our aim is to minimize the impact of the project on adjacent neighbours & businesses and on the

environment.

A dedicated Site Manager will be appointed not only to monitor the works on site, but also to act as a point

of contact to address any local concerns or queries. Contact Details for both the Site Manager and for

Head Office will be prominently displayed both in and around the site together with details for out of hours

contact.

We aim to organize our works to cause the minimum levels of disruption to the general public and to

protect them from the affects of our activities. This is principally achieved by maintaining a secure and

protected site. This not only prevents unauthorized access to the site but also prevents dust/material

being freely blown / moved out into the public areas.

Scaffolding covered in debris netting will be installed to all elevations of the CLASP Block as shown on the

site plan.

Solid fencing will be erected to all site boundaries prior to main demolition works commencing in order to

minimise dust migration and ensure the protection of the public. Warning notices and restricted area

notices will be positioned at vantage points. The inner perimeter of the working area is to receive a further

block and mesh hoarding as necessary to demark active demolition zones or protected services.

Elevations which front public rights of way will have sentries in attendance when needed. During plant

demolition the management of pedestrians and traffic will be implemented by CMEC jointly with

Nottinghamshire County Council / City Council / Local Highways Authority.


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Noise & Vibration

It is our policy, when dealing with noise & vibration mitigation, to control the noise at the source by

modifying the equipment itself or replacing it with a quieter model. However, this will not completely

combat the issue as the very nature of the demolition process creates noise. When it is not possible to

modify the equipment itself, the next best options are to block/absorb the sound.

All mechanical equipment intended for use on this project is of the design standard required to conform to

the Noise at Work Regulations 2005.

As a matter of policy we monitor and maintain all of our equipment to minimize the levels of noise

produced. This is an ongoing programme, undertaken irrespective of the nature of the projects on which

they are used.

In addition to this ongoing programme we also assess each project, prior to the start, to ensure that noise

mitigation practices are built into the project methodology.

At the planning consent stage it is not unusual for local authorities to place conditions which seek to

control this impact upon the local community. This may take the form of a request for a code of

construction practice which may stipulate management controls, hours of permitted working, special

restrictions relating to night-working, requests for the type of plant to be used etc. We are committed to

working closely with local authorities to ensure that these conditions are enforced and maintained

throughout the duration of the project.

The planning consent may also impose noise or vibration limits at either the closest receptors or at the site

boundary and may ask for levels to be monitored to verify that these levels are not exceeded. We actively

monitor the noise levels of our projects are agreed locations throughout the project and ensure that these

are maintained within the pre-agreed levels.

In line with this policy we can confirm that we would implement the following best practice guidance as

part of our standard procedure:

Site Planning

• Erect solid barriers to site boundary

• Plan site layout – machinery and noise causing activities are located away from sensitive receptors

wherever possible

• Identify responsible person in charge

Demolition Traffic

• All vehicles to switch off engines – no idling vehicles

Demolition Works

• Only use appropriately powered equipment(low noise emission) for the task in-hand

• Activities to be undertaken within time restrictions

• No radios/stereos on site

Site Activities

• Target methodologies that minimise noise generation

• Use barriers as suppressant where applicable


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Noise Control

Noise levels will be monitored throughout the course of the works. It is accepted that noise cannot be

eliminated entirely, but reasonable steps will be taken to reduce any adverse effects of noise generated by

the works.

Previously works of this scale and nature have been carried out and we have assessed the results to inform

our methodology for future schemes. A table summary of these results is shown below for reference. The

nature of the works and type of structures will allow controlled sectional removal of structural elements

using remotely operated plant. The nature and capability of the plant proposed to be used is such that all

operations will be carried out with the minimum of noise and emissions generated on the site.

Noise Monitoring

A copy of the Clasp Block Demolition – County Hall Baseline Noise Assessment is enclosed overleaf.

In addition, a further noise survey will be carried out once the demolition works have commenced.

Date: December 2016

Report Reference: HW00920

Prepared By: David Collins MIOA

Clasp Block Demolition – County Hall

Baseline Noise Assessment

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QUALIFICATIONS AND LIMITATIONS

The following notes should be read in conjunction with the report: -

The report has been prepared and written solely for the purpose of providing information in regard to the existing noise climate to determine a noise limit Condition. Furthermore, new information, changed practices or new legislation may necessitate revised interpretation of the report after the date of its submission.

Unless specifically referred to, the report has not addressed health and safety matters relating to noise, or liabilities relating to nuisance.

All information, comments and opinions given in the report are based on the information given or obtained.

Via East Midlands Ltd, Environmental Management and Design team, prepared this report for the sole and exclusive use of CMEC Demolition, in response to specific instructions. Other parties using the information contained in this report do so at their own risk and any duty of care to those parties is excluded.

Client CMEC Demolition

Job Title Baseline Noise Assessment

Job Number/ File Reference

HW00920

Date 8th December 2016

Signed Name Date

Prepared by

David Collins B.Eng. MSc, MIOA

Project Engineer 8th December 2016

Reviewed by

Derek Hair B.Sc. C. Env. MIEnv.Sc. MIIRSM

Principal Project Engineer 8th December 2016

Via East Midlands Ltd

Head Office: Bilsthorpe Highways Depot, Bilsthorpe Business Park, Eakring Road, Bilsthorpe, Newark NG22 8ST

Telephone: 0115 804 2100

Website: http://www.viaem.co.uk

Data Protection

Data Protection

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[INTENTIONALLY BLANK]

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Contents

1.0 INTRODUCTION………………………………………………………………………………………………………………………..……6

2.0 LOCATION…………..………………………………………………………………………………………………………………….….….6

3.0 NOISE SURVEY………………….….………………………………………………………………………………………………………..7

3.1 Methodology…………………..…………………………………………………………………………………………7

3.2 Weather Conditions…………………………………………………………………………………………………..7

3.3 Observations……………………………………………………………………………………………………………..8

3.4 Results……………………………………………………………………………………………………………………….8

4.0 SUMMARY………………………………………………………………………………………………………………………….……..….8

APPENDIX A (Site Photos)…….…………………………………………….…………………………………………………..…….…..9

APPENDIX B (Calibration Certificates)……………………………………………………………………………………..…………12

APPENDIX C (Glossary of Terms).………………………….………………………………………………………………..…………15

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1.0 INTRODUCTION

Via East Midlands Ltd have been commissioned by CMEC Demolition to assess existing noise levels adjacent to sensitive receptors neighbouring the County Hall site which are likely to be most impacted by noise during the demolition phase of the Clasp Block building.

Condition 9 of planning application Ref: 8/15/03017/CTY contains a noise condition worded as follows:

The total free-field noise level including noise from demolition activities on site, measured as an LAeq,1hr shall not exceed the ambient noise level (in the absence of demolition activities) by more than 5dB subject to a minimum cut-off level of 65dB LAeq,1hr when measured at the nearest receptor. In the event that the noise level specified in this condition is exceeded, the contractor shall review working methods and procedures, agree steps to mitigate the noise with the CPA, which have been designed in accordance with BS5228-1 Code of Practice for Noise and Vibration Control on Construction and Open Sites, and carry out works in accordance with the approved details. Reason: To safeguard the amenity that nearby residents could reasonably expect to enjoy in compliance

with Rushcliffe Borough Non-Statutory Replacement Local Plan Policy GP2 - Design and Amenity Criteria.

The noise condition relates to the ABC Method for determining the threshold of significant effect guidance given in BS5228-1 Code of practice for Noise and Vibration on Construction and Open Sites. This noise survey will determine the appropriate noise limit through a baseline noise survey of the pre-existing noise climate at the nearest sensitive receptors.

2.0 SITE LOCATION

Figure 1 – Location Plan

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3.0 NOISE SURVEY

3.1 Methodology

Attended noise measurements were undertaken at the position indicated in Figure 2 below adjacent to the rear boundary with properties on Sandringham Avenue to the south of the Clasp Block (See site photos in Appendix A). This location has been chosen as it is the most sensitive location where the pre-existing ambient noise level will be significantly lower than properties along Loughborough Road which will be subject to much higher noise levels due to road traffic.

Figure 2 – Noise monitoring positions (Image from Google Earth)

Measurements were undertaken in accordance with BS7445-1 – Description and Measurement of Environmental Noise. The Sound Level Meter was mounted ~1.5m above ground level and 3.5m from the boundary fence. The noise monitoring equipment used was in accordance with the specifications given in BS61672-1 Electroacoustics – Sound Level Meters. The Sound Level Meter (SLM) was calibrated before and after use and no significant drift was observed. Copies of the calibration certificates are provided in Appendix B.

Type Serial No Last Calibrated

Casella - CEL 63X 0939675 20th Jun 2016

Table 3.1 – List of Instrumentation Used

3.2 Weather Conditions

The conditions were dry and mild with temperatures ~ 13oC and a light SE breeze. There was high cloud cover throughout the survey.

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3.3 Observations

The dominant noise source was road traffic noise from Loughborough Road (A60). The only other notable contributions were occasional vehicle movements within the car park and occasional sirens from emergency vehicles travelling along Loughborough Road. All audible noise sources throughout the survey were considered typical of what would be expected at this location.

3.4 Results

Table 3.2 – Noise Monitoring Results

The measured LAeq,15mins varies from 54.7dB to 58.3dB with a log average level of 56.0dB. Therefore, in accordance with Condition 9 the noise limit for demolition activities is 65dB LAeq,1hr .

It is recommended that further noise surveys are undertaken in the early stages of the main demolition phase of works to measure the operational noise from demolition activities and to determine if the operations are in compliance with Condition 9 and if further mitigation measures will be required to comply with the conditioned limit.

It should be noted that the reference location for the conditioned limit is at nearby receptors which is assumed to be within the curtilage and therefore some allowance may be made for the extra distance and screening from the close boarded boundary fencing, where further noise surveys take place within car park at the southern boundary.

4.0 SUMMARY

Via’s Noise Engineer was commissioned to undertake a baseline noise survey to establish the pre-existing ambient noise level to enable setting of the noise limit in Condition 9 of application Ref: 8/15/03017/CTY

The assessment reveals existing ambient noise levels in the range 54.7dB to 58.3dB therefore, in accordance with Condition 9 the noise limit for demolition activities is 65dB LAeq,1hr.

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APPENDIX A (Photos)

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View looking North towards the Clasp Block Building

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View looking south towards rear boundary of properties on Sandringham Avenue

View looking north east towards Loughborough Road (A60)

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APPENDIX B (Calibration Certificates)

13

Data Protection

14

Data Protection

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APPENDIX C (Glossary of Terms)

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Glossary of Terms

Decibel Scale (dB) is a logarithmic number scale that allows a wide range of amplitude values to be compressed into a small set of number values. Numbers in decibels must be treated as logarithmic values during mathematical calculations.

‘A’ weighting dB(A) is a weighting of the audible frequencies designed to simulate the

frequency response of the human ear to noise at low to moderate sound levels. A-weighted sound levels are used to assess daily or weekly noise exposure.

LAeq,T When a noise varies over time, the LAeq is the ‘A’ weighted equivalent

continuous sound which would contain the same sound energy as the time varying sound.

Lnight Night equivalent level : Leq. A-weighted, Sound Level, measured overnight 23.00 - 0700 hours. Also known as the Night Noise Indicator.

LA10,T is the ‘A’ weighted noise level exceeded for 10% of the measurement

period (T).

LA90,T is the ‘A’ weighted noise level exceeded for 90% of the measurement

period (T). LAmax A-weighted, Maximum, Sound Level Rw a single-number quantity which characterises the airborne sound insulation

of a material or building element over a range of frequencies. (laboratory measurement).

Spectrum adaption terms: The single number rating method defined in BS EN ISO 717 uses a C and Ctr standard reference curve to determine the weighted value of airborne

sound insulation where: C is an A-weighted pink noise spectrum and Ctr is an A-weighted urban traffic noise spectrum Rw+Ctr a single number quantity which characterises the airborne sound insulation

properties of a material that has been adjusted for urban road traffic and other noises with a large component of low frequencies.


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Environmental Site Plan – Noise Monitoring Locations

Dust & Nuisance Control

All of our works are undertaken in accordance with BS6187 Code of Practice Guidance for The control of

dust and emissions from construction and demolition. The location of all plant and machinery, specifically

crushing plant, will be positioned as far as is reasonably practicable from sensitive receptors, specifically

members of the public and adjacent residential & business properties. As a matter of course all plant and

machinery will have the engines turned off when idling.

It is recognised that the emission of dust from any building and demolition operations is largely inevitable,

particularly when dry and windy weather conditions prevail.

In assessing the need for dust control measures regard shall be paid to: -

• The nature of the works.

• Location of the building to be demolished within the site

• Nature, location and size of stockpiles and the length of time they are to be on-site

• Occurrence and scale of dust generating activities - including cutting, grinding and sawing

• Number and type of vehicles and plant required on-site


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• Potential for dirt or mud to be made airborne through vehicle movements and weather conditions.

• Weather conditions likely to prevail during dust generating operations.

• Proximity of dust sensitive properties (residential, commercial and industrial).

• Effects on the general public and road users.

Dust control equipment is readily available on site from the commencement of works. The choice of plant

and equipment and the method of work will reflect the necessity to employ best practicable means in the

control of dust. Generally, where alternative methods exist, intrinsically dusty operations such as dry

sweeping or dry sandblasting are not utilised and alternative operations instigated.

Dust & Particulate Control

All of our works are undertaken in accordance with BS6187 Code of Practice Guidance for The control of

dust and emissions from construction and demolition. The location of all plant and machinery, specifically

crushing plant, will be positioned as far as is reasonably practicable from sensitive receptors, specifically

members of the public and adjacent residential & business properties. As a matter of course all plant and

machinery will have the engines turned off when idling.

All CMEC Plant and Machinery have engines compliant with EU emission regulations. In addition all

exhaust gases are mixed with intake air to reduce particle matter (PM) and nitrogen (NOx) emissions.

Dust Control Measures

Where adequate dust control cannot be achieved by the choice of appropriate plant, equipment and work

method common means of dust suppression involve the use of water and/or containment by screening

and enclosure.

Water Suppression

Water suppression of dust may be employed to good effect for operations such as cutting or sandblasting

of stone or concrete as well as in more general applications where dampening can prevent excessive wind

whipping of dust from stockpiles and operational areas of the site, or from demolition.

Where dust is likely to be a persistent problem a water spray system should be available from the

commencement of the works. The use of such systems can be particularly effective in operations such as

the removal of soil during construction. The need to ensure that adequate water supplies are available,

either from the mains, bowsers or other sources is a prime consideration at the planning stage.

A Dust Boss System will be in place together with water jets located on the jaws of the excavators and

directional water jets located up wind of the works to damp down the work face.

Screening and Enclosure

Finely divided materials such as sand and cement products should be stored where practicable under cover

or in sealed containers. In some circumstances screening or enclosure may be required in addition to water

suppression, and if correctly designed can have added advantages noise reduction and preventing visual

access to unauthorised personnel.

Other Methods

Although most dust problems will be controlled in practice by water suppression and/or screening, other

techniques such as local extraction to a filter unit may be an appropriate option in some circumstances.


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Atomizing nozzles

The most effective method of dust control is the application of water to it. The best way to apply water is

through the use of spray nozzles. Nozzles provide uniform water distribution, exact spray patterns, and

precisely-defined droplet sizes. This is done primarily with full or hollow cone nozzles, or even air

atomizing nozzles.

General Site House Keeping

Both water suppression and screening have practical limitations. In warm weather, for example, water will

evaporate quickly from dusty materials leaving the site in a condition likely to result in dust emissions due

to wind whipping or vehicle movements.

As far as practical constraints will allow sources of dust such as spillage of finely divided materials should

be removed promptly using a wet cleaning technique. The importance of cleaning also applies to internal

roadways and the highway, which may become coated with dust from other operations and can become a

secondary source of dust emissions.

The creation of dust has been identified as a potential cause for concern. This has been taken into

consideration and we are to adopt a dust suppressive method of demolition. The main objectives are to

both minimize the production of dust by controlled demolition methods and suppress any dust that is

generated at source.

Given the requirement to ‘damp down’ dust generated both at the workface and during crushing

operations, consideration will be given to discharge of slurry into the adjacent live sewers. All such gully

outlets will be bundled with sand bags and also have a filter system installed in the form of ‘terram’

membrane to ensure slurry run off does not enter the drainage system.

Monitoring

Noise will be monitored in accordance with our form SF6 attached in section 9 in the Risk Assessment &

Method Statement.

Dust Prevention Methodologies

Points Covered:

• Summary of work to be carried out.

• Description of site layout and access – including proposed haul routes, location of site equipment

including supply of water for damping down, source of water (wherever possible from recycled or

grey water), drainage and enclosed areas.

• Inventory and timetable of all dust generating activities.

• List of all dust and emission control methods to be used.

• Timescale of dust producing activities.

• Details of any fuel stored on site.

• Identification of an authorised on-site responsible person. Ideally this person needs to have

knowledge of pollution control and vehicle emissions.

• Summary of monitoring protocols and agreed procedure of notification to the enforcing authority

nominated person(s).

• Details and procedure on using a site log book (to record information including exceptional

incidents causing dust episodes and action taken, identification and details of vehicle washing, site

inspections).


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In line with this policy we can confirm that we would implement the following best practice guidance as

part of our standard procedure:

Dust Control Measures

We will ensure that all actions follow best practicable means (BPM) at all times to minimise dust and

emissions. The following identifies the activities that are most likely to produce dust and outlines

BPM. These measures have been intended to be stringent but achievable to deal with the specific air

pollution problems facing Contractors.

Pre-Start Preparation

For all sites with areas of open ground that are close to receptors, we will follow best practice to prevent

dust from being generated outside the boundary. The method statement is designed to ensure that

machinery and dust generating activities are not located close (or in the direction of prevailing wind) to

boundaries and sensitive receptors. For high risk sites, we will implement monitoring before work begins

to identify baseline dust levels. This information can be used to inform site design and layout.

Site Planning

• Plan site layout–locate dust activity away from sensitive receptors.

• Plan site layout – minimise movement of construction traffic around site.

• Erect solid barriers to site boundary

• No bonfires

• All site personnel are fully trained

• Trained and responsible manager on site during working times to maintain logbook and site

inspections.

• Put in place dust real-time monitors across site.

Communication

The management of CMEC Demolition Ltd sees communications between workers as an essential part of

effective Health, Safety and Environmental management and will endeavour to communicate to

employees their commitment to Safety, the environment and to ensure that employees are familiar with

the contents of the Company Health & Safety and Environmental Policies. Communication with employees

will be in the form of directions and statements, in writing, by way of the Policy Statement and by example.

We can confirm that we will operate timed delivery and collections. This system will allow us to ensure

that all access to site will be overseen by a member of staff on a ‘Meet and Greet’ basis. This will improve

site security and ensure that minimum disruption to all the access routes surrounding the site.

Environmental Issues

Working adjacent to a public highway

All operatives / operators are to strictly adhere to all site rules. Due care and consideration will be

afforded to all persons within the immediate area, in particular: council members of staff, members of the

public and visitors.

Working adjacent to occupied premises

Cordon off the immediate work area with solid Heras type double clipped security fencing to protect the

public from dust and debris, post warning signs to make all aware. Carry out letter drop to adjacent


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properties advising of the works and contact numbers in case of problems. Adopt a safe system of work,

ensuring all affected by the works are informed.

Damage to adjacent properties

Adequate protection to all adjacent properties is to be in place prior to commencement of demolition

works, this includes the erection of scaffold end protection to the sensitive elevations.

Site Neighbourhood

The demolition site is adjacent to Nottinghamshire County Hall, its car park, public footpaths, main roads,

the River Trent, businesses & residential properties. We will take all necessary precautions to prevent

nuisance, disturbance, disruption etc to all of our neighbours.

Noise

It is our policy, when dealing with noise & vibration mitigation, to control the noise at the source by

modifying the equipment itself or replacing it with a quieter model. However, this will not completely

combat the issue as the very nature of the demolition process creates noise. When it is not possible to

modify the equipment itself, the next best options are to block/absorb the sound.

Full details are enclosed within Section 3.11 of the RAMS.

Nuisance

Take all necessary precautions to prevent nuisance from smoke, dust, rubbish, vermin, etc.

In general terms, the intended method of structural demolition work and loading operations on this

project will be by employing hand working and mechanical methods. The requirement for operatives to

work at heights will be avoided whenever alternate methods of working are practicable.

No fires will be allowed on site.

Protection Measures For Existing Trees

CMEC are committed to working to the British Standard BS 5837 Trees in relation to design, demolition and

construction Recommendations. Any trees identified, either by Nottinghamshire County Council or our

Site Manager, as being in potential risk of damage will be clearly marked and protected by heras fencing.

The fencing will be set at a distance from the tree trunk so as to protect the tree root ball and canopy from:

• abrasion of bark and wounds that leave wood tissue exposed

• crushing of roots be vehicles / plant equipment and / or storage of materials

• severing and removal of roots by excavation

• broken branches leaving wood tissues exposed

• poor pruning

• fire damage

• poisoning of roots from spillage or storage of fuel, oil, chemicals etc

• changes in soil levels around trees resulting in root death

• installation of impermeable surfaces

We are committed to the protection of the environment and take all reasonable steps to ensure that we

avoid damaging the existing flora of the local area.


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5. A Scheme for the Segregation into Different Waste Streams and Recycling /

Disposal of Waste Arising from Demolition

Storage of Materials

We do not utilise large quantities of materials during the general course of our works, however, we would

undertake the following to ensure that all waste was stored safely:

General Principals

• Ensure that all waste is collected, segregated and disposed of safely and in accordance with

statutory regulations and CMEC Demolition Ltd procedures.

• Ensure that all waste containers are correctly locked and labelled in accordance with statutory and

CMEC Demolition Ltd policy requirement

• Waste/Skip containers will be placed as close as possible to the point of origin and clearly identified

for each specific type of waste

• External storage areas will be kept free of animals/rodent infestations

• The Supervisors / Manager is responsible for ensuring that the number of containers provided is

compatible with the volume of waste produced.

• All waste generated on CMEC Demolition Ltd premises whether internally or externally will be

stored in a safe and practical manner so as to ensure the minimum of offence to members of the

public and employees.

• Hazardous waste will be transferred only by an authorised contractor who holds all relevant

licenses and approvals from the enforcing authority which in this case is the Environment Agency.

Specific, Controlled, Waste Streams

Asbestos

Identification and removal of asbestos containing materials (ACM’s) will be carried out prior to the

commencement of demolition works. This is going to be undertaken by an approved specialist Asbestos

Removal contractor. However, it is possible that some ACM’s will remain undetected until the soft

strip/demolition works. Site Managers, Supervisors and Operatives are fully trained in the identification of

Asbestos and operate a pre-determined process to minimize any potential hazard and the potential delay

to the contract.

We work to the following procedure in relation to Asbestos Removal:

• Establish the type & extent of asbestos present – by client survey

• Submit relevant notifications (eg. NNLAW)

• Segregate the area

• Operatives to wear appropriate PPE

• Remove non-asbestos material

• Spray asbestos material in-situ

• Remove in whole pieces

• Wrap in designated plastic

• Sealed waste stored in secure onsite containers

• Remove to a licensed holding waste station to be bulked and taken to licensed landfill

• Complete appropriate paperwork & keep for 3 years

Gas Bottles

If any gas bottles are found on site they will be securely stored and returned to the manufacturer.


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Paint

Any liquid paint tins/containers would be treated as ‘chemical’ waste and disposed of as follows:

Any chemicals discovered after the commencement of works on site will be quarantined in a bunded area

able to hold 110% of the chemicals if spilled. MSD’s would be obtained or analyses ordered. Dependent

upon the results disposal will be arranged by a fully licensed carrier.

Refrigeration / Air Conditioning Equipment

Refrigeration / Air conditioning units / R22 graded units and associated pipe work will be de-gassed by a

specialist contractor at the earliest opportunity. We would look to work closely with local companies who

recover any refrigerant for recycling / treatment.

Products under the Waste Electrical or Electronic Equipment Directive (WEEE)

Any products on site that are categorised as Waste Electrical or Electronic Equipment are collected and

stored in a secure area on site. They would be collected and taken to the nearest recycling site for

recycling / reprocessing.

Tyres

Tyres found on site would be collected and stored in a central area for licensed collection and

recycling/reprocessing.

Water Oil and Fuels

Water, Oils & Fuels will be sampled at the earliest opportunity and drained and disposed of through a

licensed undertaker. They would be collected and taken to the nearest OSS Group site for recycling /

reprocessing.

Mercury

Any demolition materials containing Mercury (e.g. Florescent tubes) would be collected and stored in a

coffin in a secure central location and be collected by Site Clear Solutions on a carriers round for

reprocessing and recycling.

Waste Disposal

All waste materials will be separated into types for recycling where possible. Non-ferrous metals will be

taken on an ongoing basis from the site to be recycled. No burning will take place on site.

Debris will be placed into wagons or skips for removal to an appropriate waste disposal site or recycling

station.

Wagons entering and leaving the site will be assisted by a traffic operative to prevent any inconvenience to

road users or pedestrians.

Skips and wagons will be sheeted prior to leaving site to prevent materials being windblown during transit.

The frequency of waste collections will be determined so as to avoid unnecessary accumulation of waste in

storage areas and to minimize the impact of the transport vehicles on the surrounding neighbourhood.

Documents

Ruth Kinsey - Nottinghamshire