noise impact assessment: at - south tynesideplanning.southtyneside.info/mvm.dms/planning...uk coal...

56a Leabrooks Road

Somercotes Derbyshire

DE55 4HB Tel No: 01773 607483 Fax No: 01773 603331

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Noise Impact Assessment: For Proposed Anaerobic Digestion (AD) Plant At The UK Coal Disposal Site Off Follingsby Lane Wardley For Tamar Energy Report No.: R13.0707/DRK Report Date: 9th August 2013 Consultant: D.R. Kettlewell MSc MAE MIOA I.Eng Noise & Vibration Consultants Ltd 56a Leabrooks Road Somercotes Derbyshire DE55 4HB Tel no.: 01773 607483 Fax no.: 01773 603331 Email: [email protected] Web site: noiseandvibration.co.uk Member of Institute of Acoustics Member of Association of Noise Consultants Member of Academy of Experts

SOUTH TYNESIDE MBC PLANNING GROUP

RECEIVED 28/08/2013

ST/0995/13/FUL

Noise Impact Assessment: For Proposed Anaerobic Digestion (AD) Plant

At The UK Coal Disposal Site Off Follingsby Lane Wardley Report prepared by: Noise & Vibration Consultants Ltd 56a Leabrooks Road Somercotes Derbyshire DE55 4HB On behalf of:

Tamar Energy Report No.: R13.0707/DRK

Report undertaken & checked by: D R Kettlewell MSc MIOA MAE I.Eng – Principal Consultant

Date: 9th August 2013

Noise Impact Assessment AD Facility UK Coal Disposal Site, Wardley 9th August 2013 _____________________________________________________________________________________________

R13.0707/DRK Tamar Energy

Summary

1. Tamar Energy is applying for planning permission to construct and operate an Anaerobic Digestion (“AD”) Facility. The Local Authority has requested a noise assessment of the proposed site to be located at the UK Coal Disposal Site, Off Follingsby Lane, Wardley.

2. The noise assessment determines the impact from the AD Unit at the nearest existing residential properties. The development includes a Reception Building, Biofilters, Gatehouse, Weighbridge, Gas Holders, Substation, Combined Heat & Power (“CHP”) plant, Digesters, Digester Storage Tanks, associated pumps, transformers, Boiler Room, Digestate Separator, Oils Store, Office, parking and surplus gas burner.

3. Noise levels have been considered and assessed during the

construction and the operational phases of the proposed development. Relevant and appropriate noise guidance and standards have been used to determine the noise impact and where appropriate amelioration measures provided to mitigate noise sources to acceptable and reasonable levels.

4. To determine any likely impact from noise it was necessary to

establish the existing noise climate at the nearest residential property areas. This information has helped determine any likely noise impact on nearest receptors to the site during the construction and operation of the proposed development.

5. Background noise measurements have been undertaken in the vicinity

of nearest residential properties during a typical Sunday morning through to a Monday morning period to establish the lowest likely background levels.

6. Measurements undertaken at similar sites operating in the UK have

been referred to for information on typical site operational noise levels during peak noise events. This information has enabled us determine the noise contribution from the proposed site at the nearest residential properties for comparison with background measurements in accordance with BS4142: 1997.

7. The Local Authority has been formally consulted in respect of

appropriate noise criteria for this type of development. We have been advised that the site should consider BS4142: 1997 in terms of noise criteria at the nearest residential properties. Reference should also be made to WHO guidance and BS8233: 1999 `good’ design for noise levels within bedrooms with window open to justify the design limit.

Existing Noise Climate:

8. The results of the investigations into the existing noise climate have

established the following:



Typical background noise levels during the Sunday and Monday morning daytime period ranged on average between 39dB(A) and 55dB(A) L90 and a residual noise level of 50dB(A) to 58dB(A) Leq (at the nearest residential boundary). The background noise levels through the night-time period are shown to be typically around 37-43dB LA90 and residual levels of between 47dB(A) to 52dB(A) Leq . Typical Peak Noise from a Similar AD unit

9. The recorded noise levels at 1-metre distance from other similar AD units located at sites in the UK, varied from 56dB(A) to 75dB(A) Leq. Conclusions

10. The report predicts the impact of noise from fixed and mobile plant that

would be used at the proposed site during the construction and operational work activities. The noise assessment concludes the following:

During the construction phase of the development, there will be a

variety of noise sources in use at different stages and their associated activities will vary from day to day. The highest noise levels relative to nearest receptors are likely to occur at the start of the construction in the particular working area during colliery spoil movements, infrastructure development and building construction. These activities do not normally occur over long periods of time and best practical means would be employed to control the noise being generated. The noise levels generated during construction are likely to result in an impact magnitude classification of negligible at residential receptors and slight at commercial receptors and neutral to minor in terms of impact significance. The construction phase noise impacts from the facility are therefore not considered to represent a significant impact.

During the operation of the site it is concluded in respect of the resultant residual impact, that with the proposed mitigation measures, there is likely to be a negligible or slight effect and according to the British Standard during daytime and night-time periods would indicate that complaint is unlikely and during night-time periods noise levels would be well within sleep disturbance criteria.

The assessment of increase in road traffic noise concludes that there would be a negligible to minor impact magnitude at the nearest affected residential dwelling and therefore a neutral to slight impact significance in road traffic noise. The increase in EIA terms is not considered significant.

Noise amelioration measures have been proposed to meet the

requirements of best available techniques (BAT).



Expert Opinion 11. Taking into account the proposed operational times of the

development, the noise control measures proposed, predicted noise levels and the relative position of the nearest existing residential properties to the development, it is our expert opinion that the resultant noise levels would fall within limits according to appropriate guidance and standards.



CONTENTS

Section Page Number 1. Introduction 1 2. Site Description 3

3. Noise Policy, Guidance & Standards 5 4. Assessment Methodology 10 5. Baseline Conditions 15 6. Noise Level Predictions 18 7. Conclusions 24 8. Noise Control Measures 26 References Figures 1 - 2 Appendix 1 Basic Acoustic Terminology

Appendix 2 Instrumentation and Fieldwork Details Appendix 3 Baseline Noise Measurement Results at Fixed Location

Appendix 4 Typical AD Noise Levels Appendix 5 Construction Plant Inventory Appendix 6 Noise Contour Maps Appendix 7 Consultant’s Experience & Qualifications


R13.0707/DRK Tamar Energy Page 1

NOISE ASSESSMENT 1.1 Introduction

1.1.1 This report assesses the impact of the Proposed Development with regard to noise. It describes the methods used to assess the impacts, the baseline conditions that currently exist at the site and the potentially affected noise sensitive receptors. The potential direct and indirect impacts arising from the proposed development and an example of mitigation measures required are also described.

1.1.2 The assessment includes the consideration of:

information on typical existing site noise climate;

information on the noise impact on existing residential dwellings from site noise sources;

information and predictions on noise from construction works;

information on the impact on noise from heavy goods vehicle movements and site operations; and

an example of noise mitigation measures to comply with current noise standards and guidance.

1.1.3 The above potential noise impacts are considered in the context of the existing background noise at the site, which is influenced by local road traffic, distant road traffic and occasional aircraft and birdsong.

1.1.4 Appendix 1 provides details of technical terms within the chapter, for ease of reference. There is also a chart showing typical everyday noise levels to assist in understanding the subjective level of noise in terms of decibels.

1.1.5 The areas of new plant relevant to the planning application relates to the following equipment (as shown on Figure 1 attached):

Reception Building with 4 off fast acting roller shutter doors; Enclosed Biofilter; Wastewater treatment unit; Ancillary storage building; Transformers; Gatehouse Office/Weighbridge/Weighbridge Control; 3 x cylindrical digestion tanks; 2 x cylindrical digestate storage tanks; 4 x feedstock buffer tanks; 3 x Pasteurisation tanks; 2 x Combined Heat and Power Units; 1 x Spherical Gas Holders, Emergency Surplus Gas Burner; Gas conditioning unit; Containerised Oils Store; Substation with a single storey building to house switchgear; Connecting pipework



Site office and mess facilities within the reception building; Parking; Sealed concrete pad; Pond for the retention of surface water run-off; Mobile plant; HGV’s

1.1.6 It is intended that the Anaerobic Digester (“AD”) Facility would operate

continuously. The hours proposed for delivery of waste for the facility would relate to daytime periods from 0700 to 1800 hours Monday to Friday and 0800 to 1330 hours on Saturdays. Waste will not be accepted on Sundays or Bank Holidays.

1.1.7 The aim of the noise assessment is to provide information and advice on the

following: identify plant equipment and its location; identify the nearest noise sensitive receptors or sites; determine likely source noise levels; provide information on existing background and specific site noise levels at the

nearest sensitive receptors; provide predictions of resultant noise levels at the nearest sensitive receptors;

and provide an example of amelioration measures to reduce noise and vibration for

the proposed development by applying Best Available Techniques (“BAT”). 1.1.8 To establish the existence and locality of any significant site noise, the methodology

and approach includes the following: establish the nearest noise sensitive sites; evaluation of typical background and ambient noise levels; evaluation of noise sources from the site in terms of typical LAeq levels; assessment of noise sources in relation to appropriate guidance and standards;

and identification of noise amelioration measures using BAT (`best available

techniques’) where new noise sources have been identified as being significant or have the potential of causing a significant increase in existing noise levels.



2.0 SITE DESCRIPTION

2.1 General 2.1.1 The project is to seek consent for, build and operate a commercial anaerobic

digestion (AD) plant on the old UK Coal Stocking site at Wardley, off Follingsby Lane. The application site is 2.77 hectares in size. This includes the internal haul road from the access/egress point from the public highway (Follingsby Lane) to the proposed siting of the AD Facility within the UK Coal Disposal Point. The application site is shown edged red on drawing 13015_02 Site Plan (as proposed).

2.1.2 The proposed AD Facility will take in by products of the food industry, and through

Anaerobic Digestion produce biogas and digestate. The digestate will be used as a soil improving material and fertiliser substitute, and the biogas will run gas engines, generating electricity. This will be fed into the local distribution network, or be provided directly to nearby industries. The process is entirely enclosed form start to finish complying with appropriate regulations on food waste; no handling, processing or storage takes place outside.

2.2 Site Operation Hours 2.2.1 The site would operate continuously (i.e. 24 hours, 7 days per week). For delivery of waste

this is intended to be Monday to Friday 0700 to 1800 hours and Saturdays 0800 to 1330 hours.

2.3 Site Layout 2.3.1 The draft design layout for the AD Facility is provided in Figure 2 attached. Access

to the site would be via the existing entrance and exit via Foliingsby Lane. 2.4 Nearest Receptors 2.4.1 In relation to the AD facility, the nearest receptors are located southeast and

northeast off Follingsby Lane at a distance of approximately 720-800 metres and northwest adjacent to the A184 Newcastle Road at a distance of approximately 710 metres.

2.4.2 West of the site is Follingsby Industrial Park with the nearest commercial building

approximately 130 metres distance. There is an existing office on the site adjacent to the coal stocking area.

2.4.3 Figures 1 and 2 attached, shows the layout of the site and the site position relative to the nearest existing residential areas. The site and surrounding land area is formed the generally flat relative to the nearest residential receptors.

2.5 Site Activities

2.5.1 The proposed technology is a wet AD process and is summarised as follows

Material is brought on site in bulk loads, weighed on the inbound weighbridge. Liquid wastes are received into purpose built tanks. Solid wastes are driven into the reception building through the fast acting roller

shutter doors, which close when the vehicle is inside.



The vehicle is unloaded within the building, which is held under negative pressure to ensure that emissions do not escape. Doors remain closed except during vehicle entry or exit.

Materials are de-packaged and macerated, prior to pasteurisation. A material of soup-like consistency is moved to the digesters, where a culture

of bacteria digests the materials. During digestion bio-methane is given off by the process, and captured. Bio-methane is used to run gas engines, which drive generators, creating

renewable heat and electricity. The remaining solid product is available for use as a soil-improving fertiliser

substitute. It will be stored in sealed tanks until required for use, at which point it will be tankered off site.

Heat will be either used in pasteurisation and heating of tanks and buildings, or will be exported offsite through direct connections to be established with heat receptors. If the heat is to be transported to neighbouring industrial, commercial or residential uses then it will be piped through underground piping.

2.5.2 Details of typical noise levels associated with the fixed and mobile plant equipment that would be used on site is detailed in Appendix 4 of this report.

2.5.3 The secondary noise source associated with the export of digestate from site would relate to the movement of Heavy Goods Vehicles (HGVs) travelling to and from the site.

2.5.4 The separation distance from the site to the nearest residential receptors is provided below in Table 2.1.

Table 2.1: Distance to Nearest Receptors

Position Approximate Distance to AD Facility (m)

1.Dwelling to west to southwest (adj. to A194(M)) 790 2.Dwellings along Follingsby Lane (southeast) 710 3.Dwellings to northeast (adj to A184 & W Pastures) 1200-1600 4.Dwellings to the north (adj. to A184 Newcastle Rd) 750-850 5.Industrial/Commercial buildings (west) 140



3.0 NOISE POLICY, GUIDANCE & STANDARDS

3.1 General Planning Policy Introduction

3.1.1 The ambient environmental noise at any location will vary according to the

activities in progress around the location. In the vicinity of a busy motorway, for example, the noise level will remain fairly constant due to the relatively steady noise input from road traffic, whereas the noise level close to a source of high noise over short periods, such as an airport, will vary over a much wider range. It is therefore necessary to consider how to quantify the existing noise levels in an area in order to accurately assess the acceptability of the introduction of a new noise source.

Relevant Noise Criteria: 3.1.2 The following section outlines the key planning policy and guidance that

relates to the assessment of residential amenity and protection of residents from general environmental and industrial noise sources.

General Planning Guidance

3.1.3 The Government recently removed the existing Planning Policy Guidance on noise, which was known as PPG24: 1994. The National Framework Planning Policy (“NFPP”), which has recently been published states:

“109. The planning system should contribute to and enhance the natural and

local environment by: preventing both new and existing development from contributing to or being

put at unacceptable risk from, or being adversely affected by unacceptable levels of soil, air, water or noise pollution or land instability;”

3.1.4 The Noise Policy Statement for England (“NPSE”) – March 2010 has the

following long term vision in policy aims:

“Through the effective management and control of environmental, neighbour and neighbourhood noise within the context of Government policy on sustainable development;

avoid significant adverse impacts on health and quality of life;

mitigate and minimise adverse impacts on health and quality of life; and

where possible, contribute to the improvement of health and quality of life.



Former Planning Policy Guidance Note 24 (PPG24) `Planning and Noise: 1994

3.1.5 The introduction of PPG24, states:

`The aim of this guidance is to provide advice on how the planning system can be used to minimise the adverse impact of noise without placing unreasonable restrictions on development or adding unduly to the costs and administrative burdens of business.’

3.1.6 PPG 24 introduced the concept of Noise Exposure Categories (NEC), which had been derived to assist local planning authorities in their consideration of planning applications for residential developments near transport related noise sources. Whilst the NEC procedure was only applicable for the introduction of a new residential development into an area with an existing noise source, it provided information to show acceptable noise limits in planning terms, for assessing residential development to protect amenity within garden areas. Within Annex B, guidance was given for various types of noise sources, which include, for example, industrial noise, commercial developments, road traffic, construction sites, aircraft and railways. Whilst this guidance was only directly relevant to the proposed new residential development, it nonetheless provided information on what absolute noise levels were deemed to be acceptable for existing residential development affected by transportation noise.

3.1.7 The level at the boundary of NEC A and NEC B was based on guidance provided by the World Health Organisation (WHO) health criteria from 1980, which stated that `general daytime outdoor noise levels of less than 55dB(A) Leq are desirable to prevent any significant community annoyance”.

3.1.8 The night-time noise level at the boundary of NEC A (i.e. 45dB(A) Leq8hrs) and NEC B was also based upon the WHO health criteria, stating that `based on limited data available, a level of less than 35dB(A) is recommended to preserve the restorative process of sleep’. This was based on an internal room level.

3.1.9 Table 3.1 below provides an interpretation of the NEC categories in terms of granting planning permission.

Table 3.1: NEC Categories

NEC Category

Description Noise Range LAeq,T dB

A Noise need not be considered as a determining factor in granting planning permission, although the noise level at the high end of the category should not be regarded as desirable.

<55dB(A) daytime (16hr) <45dB(A) night-time (8hr) Road, rail and mixed sources

B Noise should be taken into account when determining planning applications and, where appropriate, conditions imposed to ensure an adequate level of protection.

55-63dB(A) daytime (16hr) 45-59dB(A) night-time (8hr) Road, rail and mixed sources



3.1.10 For noisy industrial developments the guidance referred to BS4142 Method for rating industrial noise affecting mixed residential and industrial areas. It gives the comment that “The likelihood of complaints about noise from industrial development can be assessed, where the Standard is appropriate, using guidance in BS4142: 1990.” [Note: the standard was updated in 1997].

3.1.11 Further comment is made in respect of noise levels within buildings in that “In addition, general guidance on acceptable noise levels within buildings can be found in BS8233: 1987.” [Note: the standard was updated in 1999]

Industrial Noise Criteria BS4142: 1997 `Method for rating industrial noise affecting mixed residential and industrial areas'

3.1.12 BS4142: 1997 `Method for Rating industrial noise affecting mixed residential and

industrial areas' is based on the measurement of background noise using LA90 noise measurements compared to source noise levels measured in LAeq measurements. The differential between the two measurements; once any corrections have been applied for source noise tonality, distinct impulses etc (i.e. rating level), determines the likelihood of complaints. If the difference between the rating level and background is +5dB(A) above background, then the standard says that the noise is of marginal significance; if the differential is +10dB(A) above background then complaints are likely. The lower the difference between the rating level and background level the greater the indication that complaint is unlikely.

Internal Room Noise Criteria

BS 8233:1999 `Sound insulation and noise reduction for buildings – Code of Practice’

3.1.13 The British Standard BS8233: 1999, `Sound insulation and noise reduction for

buildings – Code of Practice’ provides additional guidance on noise levels within buildings. These are based on the WHO recommendations and the criteria given in the standard for unoccupied spaces within residential properties include the following: Table 3.2: BS8233: 1999 Internal noise level guidance for dwellings

Criterion Typical Situation

Design Range , LAeq, dB Good Reasonable

Reasonable conditions for work Cellular Office 40 50 Reasonable conditions for work Staff Room 35 45 Reasonable conditions for work Executive office 35 40 Reasonable conditions for sleeping and resting

Living Rooms 30 40

Reasonable conditions for sleeping and Resting

Bedrooms 30 35

For a reasonable standard in bedrooms at night, individual noise events (measured with the F time-weighting) should not normally exceed 45dB LAmax



General Community Noise & Night-time Environmental Noise

World Health Organisation (WHO) Guidelines for Community Noise: April 1999 3.1.14 This document provides further updated information on noise and its effects on the

community. Within the document it states “The effects of noise in dwellings, typically, are sleep disturbance, annoyance and speech interference. For bedrooms the critical effect is sleep disturbance. Indoor guideline values for bedrooms are 30dB LAeq for continuous noise and 45dB LAmax for single sound events. Lower noise levels may be disturbing depending upon the nature of the noise source. At night-time, outside sound levels about 1 metre from facades of living spaces should not exceed 45dB LAeq, so that people may sleep with bedroom windows open. This value was obtained by assuming that the noise reduction from outside to inside with the window open is 15dB. To enable casual conversation indoors during daytime, the sound level of interfering noise should not exceed 35dB LAeq. To protect the majority of people from being seriously annoyed during the daytime, the outdoor sound level from steady, continuous noise should not exceed 55dB LAeq on balconies, terraces and in outdoor living areas. To protect the majority of people from being moderately annoyed during the daytime, the outdoor sound level should not exceed 50dB LAeq. Where it is practical and feasible, the lower outdoor sound level should be considered the maximum desirable sound level for new development.”

3.1.15 In 2009, the World Health Organisation published `Night Noise Guidelines for

Europe’, which it describes as an extension to the WHO `Guidelines for community noise’ (1999). It concludes that “Considering the scientific evidence on the thresholds of night noise exposure indicated by Lnight,outside as defined in the Environmental Noise Directive (2002/48/EC), an Lnight,outside of 40dB should be the target of the night noise guideline (NNG) to protect the public, including the most vulnerable groups such as children, the chronically ill and the elderly. Lnight,outside value of 55dB is recommended as an interim target for those countries where the NNG cannot be achieved in the short term for various reasons, and where policy-makers choose to adopt a stepwise approach.” The target of 40dB(A) outside would relate to an internal noise level within bedrooms of 25-30dB(A) Leq8hours.

Construction Noise BS5228-1 2009 Code of Practice for noise and vibration control on

construction and open sites 3.1.16 In the forward of this standard it states `This British Standard refers to the need for

the protection against noise and vibration of persons living and working in the vicinity of, and those working on, construction and open sites. It recommends procedures for noise and vibration control in respect of construction operations, and aims to assist architects, contractors and site operatives, designers, developers, engineers, local authority environmental health officers and planners.’

[Reference: BS5228-1: 2009 item iii)] 3.1.17 Under the heading `Use of this document’ it states `As a code of practice, this part

of BS5228 takes the form of guidance and recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure claims of compliance are not misleading.’

[Reference: BS5228-1: 2009 item iv)]



3.1.18 This scope of the standard is clarified as follows:

`This part of BS5228 gives recommendations for basic methods of noise control relating to construction and open sites where work activities/operations generate significant noise levels, including industry-specific guidance. The legislative background to noise control is described and recommendations are given regarding procedures for the establishment of effective liaison between developers, site operators and local authorities. This part of BS5228 provides guidance concerning methods of predicting and measuring noise and assessing its impact on those exposed to it.’

[Reference: BS5228-1: 2009 page 1, section 1] 3.2 Consultation with the Local Authority - Relevant Guidance and Criteria: 3.2.1 Recent contact with South Tyneside Council has indicated that during daytime the

noise `rating’ level from site should not exceed background noise +5dB(A) in accordance with BS4142. Reference to other standards such as WHO guidance for night-time noise and BS8233: 1999 provide guidance on sleep disturbance criteria and appropriate internal design noise levels within sensitive rooms.



4.0 ASSESSMENT METHODOLOGY

4.1 General 4.1.1 To establish the impact of the Proposed Development in relation to noise on existing

residential areas it is necessary to consider the relevant noise guidance, standards and policy for an industrial development. The following information examines the guidance and establishes the methodology to be adopted for assessing noise impacts.

4.1.2 Information used in this assessment has been obtained from the following sources:

Ordnance Survey maps of the local area. Tamar Energy provided information relating to the general layout of the

proposed site. Former Planning Policy Guidance 24 (PPG24), `Noise and Planning’ – 1994 British Standards BS4142: 1997, BS5228: 1997, BS7445: 2003 & BS8233:

1999 Department of Transport `Calculation of Road Traffic Noise': 1988. Design Manual for Roads and Bridges, Volume 11, Environmental Assessment:

1999 4.1.3 Contact was made with South Tyneside Council Environmental Health Officer with

regard to nearest sensitive receptors and appropriate noise criteria.

4.1.4 Background noise measurements were undertaken at positions in the vicinity of nearest residential property boundaries to identify typical noise levels when the site is not operational. The monitoring of residual and background noise was carried out during a Sunday daytime and night-time period such that the lowest likely background noise levels during operational time periods could be determined for the assessment.

Noise Assessment Criteria

Construction Noise

4.1.5 For construction noise BS 5228 is the appropriate standard. This is an approved code of practice under the Control of Pollution Act and consequently there is a legal requirement for construction noise to be controlled according to the recommendations given in BS 5228. The standard does not give noise limits for construction sites, but emphasis is placed on ensuring that best practical means are adopted to control noise on site.

Road Traffic Noise

4.1.6 In November 2006 the Department of Transport published a Transport Analysis Guidance (TAG unit 3.3.2) in which it states “It should be recognised that, in many situations, relatively large changes in traffic flows are required to bring about significant changes in the response to noise levels in the longer term. For freely flowing traffic, a difference of about 3dB in noise level is required before there is a statistically significant change in the average assessment of nuisance.” [ref. paragraph 1.15]. (Note: This is based on an 18 hour traffic flow assessment)



4.1.7 The Design Manual for Roads and Bridges (DMRB) – May 2008 (Part 2 GD 01/08) provides information and advice principally for Trunk Road works. The guidance states, “It may also be applicable in part to other roads with similar characteristics. Where it is used for local road schemes, it is for the local highway authority to decide on the extent to which the documents in the manual are appropriate in any particular situation.” Volume 11, Section 3, Part 7 (HD 213/11) of the DMRB: November 2011 provides advice on noise and vibration. The procedure for assessing noise impacts advises the use of a LA10 measurement index based on an 18 hour time period (i.e. 0600 to 2400 hours). Further assessment of the impact would be required where changes of 1dB(A) or more are expected in the short-term and changes of 3dB(A) in the long term. Section 3.37 provides an example of the magnitude of impact for different changes in noise level for the short-term and long-term situation. Tables 3.1 and 3.2 within Part 7 of the DMRB are provided below, represented as Table 4.1 and 4.2.

Table 4.1: Example of Magnitude of Impact for Changes in Road Traffic Noise

in the short term

Noise Change, LA10,18hour Magnitude of Impact 0 No Change

0.1-0.9 Negligible 1-2.9 Minor 3-4.9 Moderate

5+ Major Table 4.2: Example of Magnitude of Impact for Changes in Road Traffic Noise

in the long term

Noise Change, LA10,18hour Magnitude of Impact 0 No Change

1.0-2.9 Negligible 3.0-4.9 Minor 5-9.9 Moderate 10+ Major

Fixed Plant Noise

4.1.8 The assessment for fixed industrial noise has been undertaken with reference to BS4142: 1997. The standard indicates that if the level difference between the background noise and the rating level (i.e. site noise with any noise character correction) is 10dB(A) or greater then complaints are likely. Therefore, to ensure that the 10dB(A) level difference is not reached, the rating level for site activities should aim to be less than 5dB(A) above the background level [i.e. below LA90+5dB(A) with removal of noise character through design process].

4.1.10 For night-time periods, it is important to protect residents from sleep disturbance and therefore WHO night-time guidelines for Europe advises an aim of 40dB(A) Leq8hrs as appropriate. For a `good’ to `reasonable’ internal bedroom design level according to BS8233: 1999 a level of 35dB to 40dB LAeq8hrs is advised.

4.1.11 The calculation method used in this study is based upon ISO 9613: 2, noise

propagation model, which takes into account source position, screening effects, distance and direction in relation to the nearest receptor. Noise predictions have been undertaken using CadnaA noise modelling software.



4.1.12 The assessment has used empirical field data taken at other similar sites in the UK to calculate the expected resultant noise contribution at the nearest property boundary locations during daytime and night-time operations.

4.1.13 The assessment is based on plant noise levels as outlined in Appendix 4 and

assumes that a reasonable level of noise amelioration measures have been included in the design, similar to those outlined in Section 6. These measures are intended to minimise noise impacts relative to the nearest receptor.

Survey Techniques 4.1.14 The background noise survey was carried out in accordance with BS4142: 1997.

The monitoring of environmental noise has been carried out in accordance with advice given in BS 7445:2003 `Description and measurement of environmental noise’.

Assessment of Significance

4.1.15 The two principal criteria to predict the significance of potential noise impacts are:

magnitude of the impact; and sensitivity of the receptors.

4.1.16 This assessment combines the above criteria to predict the significance of the noise

impacts of the proposed development.

Draft Guidelines for Noise Impact Assessment – Cumulative Effects 4.1.17 The Institute of Acoustics (IOA) and the Institute of Environmental Management

and Assessment (IEMA) Joint Working Party have provided draft ‘Guidelines for Noise Impact Assessment’. The guidelines set out an example of how changes in noise level may be assessed. Tables 4.3 and 4.4 below show the proposed impact magnitude methodology taking account of the guidance in BS 4142: 1997 for fixed plant noise (e.g. fans, condensers and generators etc.) and general changes in environmental noise level for non-industrial noise sources. Table 4.3: Impact Magnitude Scale – General environmental noise

Noise Level Change LAeq (dB)

Subjective response Impact Significance

0 No change Neutral impact 0-2.9 Barely perceptible Minor impact 3.0-9.9 Noticeable Moderate impact 10.0 or more More than a doubling or

halving of loudness Major impact

4.1.18 It should be noted that the above key changes in noise levels reflects the way that

human perception of sound is heard. A change of 3dB(A) is generally accepted to be the smallest change in the general noise climate that is perceptible to the human ear. A change of 10dB(A) in general terms is also accepted as being the point at which the human ear subjectively assesses the noise as being double or half the perceptible loudness of noise. The level change between 3dB(A) and below 10dB(A) is noticeable and in the same way that BS4142 defines the change in level above background it falls into a `marginal significance’ zone.



4.1.19 It is considered that the above criteria provides a good indication of the likely significance in general changes in noise levels to assess the cumulative effect of the site fixed plant and vehicle movement noise levels.

4.1.20 Table 4.4 below shows the proposed impact magnitude and subjective response

based on BS4142 methodology, which allows for any potential noise character (i.e. rating level).

Table 4.4: Impact Magnitude Scale - Future Noise against Existing (Operational Phase) in accordance with BS4142: 1997

Note: The `rating’ level is the difference between the noise contribution from site

and the existing background noise level allowing for any adjustments required for any unusual noise characteristic. The Guidelines state that the use of one decimal place is merely intended to avoid ambiguities at category boundaries, rather than an endorsement of the accuracy to be expected during noise assessment. The Standard advises that rounding of numbers to one decimal place should relate to levels of 0.5dB or above, which is reflected in the table limits. The impact magnitude scale in Tables 4.3 and 4.4 are used in the assessment of operational noise and Tables 4.1 and 4.2 for road traffic noise impacts. The impact scale in relation to construction noise is slightly different as construction noise is a temporary noise source and therefore the magnitude of impact is different. Table 4.5 below shows the impact scale used to assess construction noise.

Table 4.5: Impact Magnitude Category – Construction Noise

Change in Noise Level dB(A)

Subjective Response Impact Magnitude

0 to 2.9 Imperceptible to Barely perceptible No significant impact (negligible)

3.0 to 9.9 Noticeable up to doubling or halving in loudness

Slight

10.0 or more More than a doubling or halving in loudness but not exceeding any statutory limits

Moderate

10.0 or more but exceeding an absolute level of 70dB(A) Leq

More than a doubling or halving in loudness but not exceeding any statutory limits

Substantial

Note: Construction noise is a temporary noise source and whilst it may exceed +10dB(A) above residual noise during peak noise events, the nature of the impact is unlikely to produce anything greater than a moderate change in noise levels due to its temporary nature. The only situation where the construction noise may exceed guidance and therefore result in a substantial impact is where the absolute noise level is very high at sensitive receptor locations for a short duration (i.e. >70dB(A) Leq1hr), however the application of `best practice’ would be followed in this situation to mitigate effects.

Rating Level above background noise dB(A) in accordance with BS4142: 1997

Subjective Response Impact Magnitude

-10 to 0 Complaint highly unlikely Negligible +0.1 to +4.4 Complaint unlikely Negligible +4.5 to +9.4 Marginal significance Slight +9.5 to +15 Complaint Likely Moderate to Substantial Higher than +15 Complaint highly likely Severe



4.1.21 In order to determine the significance of an impact, the magnitude of the impact must be determined and the sensitivity of the receptors to the impact. For this assessment, the categories presented in Table 4.6 have been adopted.

Table 4.6: Receptor Sensitivity

Receptor Sensitivity Type of Receptor High Dwellings/residential properties including houses, flats, old peoples

homes, hospitals, schools, churches, caravans and open spaces/conservation areas where the existing noise level is low.

Moderate Commercial premises including retails and offices etc.

Low Industrial premises including warehouses and distribution etc.

4.1.22 Based upon the assessment of impact magnitude and the sensitivity of individual

receptors, the matrix given in Table 4.7 has been developed in order to provide an indication of the possible significance of each predicted noise impact. Given that there are many factors, which may affect the significance of an impact, not least, the character of the noise and timescales over which the noise operates, the overall significance must be assessed on an individual basis using professional judgement and experience. Therefore, whilst the matrix provides a useful indication of the likely significance it cannot be rigorously applied in all situations.

Table 4.7: Significance Matrix

Impact Magnitude Receptor Sensitivity

High Moderate Low Severe Major Major/Moderate Moderate/Minor

Substantial Major/Moderate Moderate Minor

Moderate Moderate Moderate/Minor Minor/Neutral

Slight Minor Minor/Neutral Neutral

No significant impact (negligible)

Neutral Neutral Neutral

Where an impact is defined as Major or Major/Moderate then the impact is considered significant in EIA terms.

4.1.22 The monitoring of environmental noise has been carried out in terms of monitoring conditions in accordance with advice given in BS 7445:2003 `Description and measurement of environmental noise’.



5.0 BASELINE CONDITIONS Site Noise Survey 5.1 A detailed environmental noise survey was carried out for the AD facility at three

locations representing baseline levels at the nearest residential property positions during a typical Sunday. The receptor positions are likely to produce the lowest typical background noise levels due to the relative traffic flow on the local road network.

5.2 The main source of existing noise affecting nearest receptor properties relates to the

movement of traffic along local and distant roads. 5.3 Noise monitoring was undertaken at the nearest receptor position to establish the

noise climate, which is detailed below: Position 1: The nearest residential property boundary southwest of the site at a

distance of approximately 790 metres from the AD facility. Receptors 2: The nearest residential receptor southeast of the proposed

development is at a distance of approximately 710 metres from the AD facility. The colliery landform provides a significant natural acoustic screen in this direction. Receptor 3: The nearest receptor off the A184 in a northern direction at a distance of approximately 750 to 850 metres

Receptor 4: The nearest residential property northeast of the site is at a distance of approximately 1.2 kilometres from the nearest AD plant.

Receptor 5: The nearest commercial receptor in a westerly direction would be at a

distance of approximately 140 metres. 5.4 The noise monitoring positions are indicated on Figure 2. 5.5 The fixed monitoring positions provide us with broadband noise data of the existing

noise climate around the Site at the nearest residential properties. 5.6 The noise monitoring exercise was carried out on a Sunday morning period through

to a Monday morning to establish typical and lowest likely ambient noise climate. Details of the instrumentation used for the survey are detailed in Appendix 2. Noise Survey Results

5.7 The results of average measurements taken at the fixed monitoring positions at site

are presented below in Table 5.1 and detailed measurements in Appendix 3.



Table 5.1: Average Noise Levels (Sunday daytime and night-time)

Location Period LAeq dB

LA10 dB

LA90 dB

LAmax dB

A. West off Follingsby Lane Daytime (0700-2300) 55.8 56.9 50.5 57-80 A. West off Follingsby Lane Night-time (2300-0700) 51.4 53.9 43.0 59-72 B. Southeast off Follingsby Lane Daytime (0700-2300) 55.2 50.4 39.1 59-89 B. Southeast off Follingsby Lane Night-time (2300-0700) 52.0 47.3 39.3 52-79 C. Northeast off W Pastures Daytime (0700-2300) 49.6 50.5 41.9 61-76 C. Northeast off W Pastures Night-time (2300-0700) 46.8 44.9 36.9 48-76

Table 5.2: Average Noise Levels (Monday daytime)

Location Period LAeq dB

LA10 dB

LA90 dB

LAmax dB

A. West off Follingsby Lane Daytime (0700-1200) 57.7 59.7 54.7 67-72 B. Southeast off Follingsby Lane Daytime (0700-1200) 55.2 55.1 50.2 74-81 C. Northeast off W Pastures Daytime (0700-1200) 53.6 54.0 48.0 69-79

5.7 Based on the results of the background noise survey and the guidance provided

within BS4142: 1997 the following noise criteria would be applicable to the nearest residential receptors.

5.8 With respect to setting the background noise, BS4142 covers this in Section 7 of the standard. At paragraph 7.1.2, the Standard states:

“Ensure that the measurement time interval is sufficient to obtain representative value of the background noise level.”

5.9 At paragraph 7.1.3, the standard goes on to say:

“Make measurements during periods when the background noise level is typical of the background noise...”

5.10 Clearly the aim of BS4142 is devise a measuring regime that will result in a typical and representative value for the background level. Measuring the background levels for extended periods and using an average LA90 level complies with the spirit of BS4142, as opposed to the use of minimum data that does not meet the standard.

Table 5.2: Proposed Noise Criteria at Nearest Residential Boundary

Position Time Period

Typical Existing LA90 (dB)

Lowest Existing LA90 (dB)

Proposed Site Noise Criteria: LAeq (dB)

1.Dwelling to west to southwest (adj. to A194(M))

Daytime Night-time

51 43

39 35

<44 (1 hour) <35* (5 mins)

2.Dwellings along Follingsby Lane (southeast)

Daytime Night-time

39 39

33 33

<38 (1 hour) <35* (5 mins)

3.Dwellings to northeast (adj to A184 & W Pastures)

Daytime Night-time

42 37

35 31

<40 (1 hour) <35* (5 mins)

4.Dwellings to the north (adj. to A184 Newcastle Rd)

Daytime Night-time

42 37

35 31

<40 (1 hour) <35* (5 mins)

*Note: The lower limit of 35dB LAeq5mins is proposed as it meets all criteria for sleep disturbance and general absolute limits for residential amenity.



5.11 The night-time proposed criteria level set well below the WHO night-time European noise guidance (2009) to protect sleep disturbance and well within a `good’ design within bedrooms with open window according to BS8233: 1999.



6.0 NOISE LEVEL PREDICTIONS

Construction Noise

6.1 Initial site preparation work is likely to involve demolition, the movement of colliery

spoil and the construction of new buildings and infrastructure. It is considered that excavators, haulage lorries, cranes, dumpers, concrete mixers, diggers and power tools would all, at some time during the construction programme, be operating on the site. In addition, ancillary equipment such as small generators and compressors may also be operating on occasions during the construction period. A list of the construction plant considered in the assessment is included in Appendix 5.

6.2 The above noise sources and their associated activities would vary from day to day and may be in use at different stages of construction for relatively short durations. The noisiest activities are expected during colliery spoil movements at the initial stages of the development when excavators or similar may be in use.

6.3 The actual noise level produced by construction work would vary at the nearest property boundary at any time depending upon a number of factors including the plant location, duration of operation, hours of operation, intervening topography and type of plant being used.

6.4 Detailed below is an indication of the highest likely noise levels at the nearest receptors based on earthworks operations, building construction and general site activities.

6.5 The calculations use the methodology given in BS5228. Under this methodology the sound power level of the noise source is defined and the attenuation is calculated between its location and the selected receiver, taking account of distance, screening due to barriers, ground attenuation and the time that a noise source would be operating.

6.6 It is difficult to estimate how long the different types of activity would last, but

typically in areas close to the site boundary (i.e. noisiest construction period assessed) this is normally completed in weeks rather than months.

6.7 The results of calculations for site preparation, infrastructure work, general site

activities and building construction are shown below in Table 6.1.



Table 6.1: Noise Predictions for Highest Likely Construction Noise

Position Distance to receptor (m)

Activity Predicted Noise (highest likely) level dB LAeq

Existing Residual Noise LAeq dB

Change in noise level LAeq dB

1.Dwelling to west to southwest (adj. to A194(M))

790-850 Site Preparation General activities Infrastructure Building Constr’n

41-43 40-41 38-42 41-42

57 +0.1 to +0.3 +0.1

0 to +0.1 +0.1



42-43 41-42 39-43 42-43

55 +0.2 to +0.3 +0.1 to +0.2 +0.1 to +0.3 +0.2 to +0.3



36-39 35-37 33-38 36-39

54 0 to +0.1 0 to +0.1 0 to +0.1 0 to +0.1



42-43 40-41 39-42 42-43

54 +0.2 to +0.3 +0.1 to +0.2 +0.1 to +0.3 +0.2 to +0.3

5.Commercial/ Industrial receptors


55-57 53-56 51-57 55-57

55 +3 to +4.1 +2.1 to +3.5 +1.5 to +4.1 +3 to +4.1

6.8 During the construction period, the highest noise levels are likely to be created

during site preparation activities, introduction of infrastructure and building construction. This would be within the level of noise normally found to be acceptable for a temporary activity of this type.

6.9 The noise levels generated during construction are likely to result in an impact

magnitude classification of negligible at residential receptors and slight at commercial receptors and therefore neutral to minor in terms of impact significance.

6.10 The construction phase noise impacts from the facility are therefore not considered to represent a significant impact. Operational Fixed & Mobile Plant Noise

6.11 Table 6.2 below shows the highest likely noise prediction relating to fixed and mobile plant noise sources operating during day and fixed plant operating during night-time periods at the AD facility. The assessment has been undertaken on the basis that the AD design includes noise amelioration measures similar to those outlined in section 8.0. Noise prediction maps are contained within Appendix 6.



Table 6.2: Predicted Noise Contribution from the AD Facility (daytime)

Receptor Position Predicted Noise Contribution from Fixed & Mobile Plant LAeq dB

Noise Criteria Based on BS4142 limit* LAeq dB (daytime)

Predicted level compared to lowest background level according to BS4142:1997

1.Dwelling west to southwest (adj. to A194(M))

36 44 -8


35 38 -3


29-35 40 -11 to -5


36-37 40 -4 to -3

*Note: The above noise predictions assume all plant operating during the daytime and the lowest measured background noise level (i.e. `worst case’). In view of the distances to receptors, existing residual noise levels (i.e. ambient LAeq’s) and mitigation strategy, we do not expect the site to attract a noise character correction.

6.12 With reference to Table 6.2 it can be seen that an assessment of the site noise

contribution according to B1412:1997 concludes that complaints are unlikely (i.e. even when allowing for a +5dB penalty for noise character, the rating level is less than +5dB(A) above background) according to the standard (refer to column 4 of Table 6.2). Cumulative Impact

6.13 Consideration of the cumulative impact of the operation of the fixed plant and vehicle movements on site has been undertaken. The results of the noise predictions are presented below in Table 6.3.

Table 6.3: Predicted Cumulative Noise Contribution from Fixed Plant & Vehicle movements

Receptor Position Predicted Noise Contribution from Fixed Plant & Mobile plant LAeq dB

Typical Ambient noise level LAeq dB

Predicted cumulative noise level LAeq (dB)

Change dB(A)

Impact significance


36 57 57 0 Neutral


36 55 55 0 Neutral


29-35 54 54 0 Neutral


36-37 54 54 0 Neutral



Note: Column 4 above is calculated by the logarithmic addition of columns 2 and 3 and column 5 is the difference between columns 3 and 4.

6.14 For the cumulative effect, the predicted levels are well below existing residual

noise levels, which show no change in noise levels at the nearest receptor and a neutral magnitude of impact. The cumulative operational noise impacts from the facility are therefore not considered to represent a significant impact in EIA terms.

6.15 The noise levels generated during site operations during the daytime period are

likely to result in an impact magnitude classification of negligible at residential receptors and neutral in terms of impact significance. Commercial Receptors

6.16 The noise criteria for commercial receptors adjacent to the site would be different to residential receptors. The relevant standard for offices within this type of receptor is BS8233: 1999 and is detailed in section 3.1.13 of this report.

6.17 For an office type environment a `good’ to `reasonable’ design range for internal

noise levels would be 35-50dB LAeq. This would equate to an external noise level of 45-65dB LAeq assuming an open window (i.e. WHO guidance assumes a reduction of -15dB & BS8233:1999 10dB to 15dB for open window) or around 57-72dB LAeq with a single glazed window.

6.18 The results of noise predictions at the nearest commercial receptors is provided

below in Table 6.4. Table 6.4: Noise prediction at nearest commercial receptor

Receptor Position Predicted Noise Contribution from fixed and mobile plant LAeq dB

Predicted internal noise level based on BS8233:1999 (open window) LAeq dB (daytime)

BS8233: 1999 `good’ to `reasonable’ internal design level LAeq dB 8hrs

5.Commercial/Industrial Receptors

49 34-39 35-50

Office on site (adjacent to coal stocking area)

54 39-44 35-50

6.19 The above predicted noise levels from the AD site at the nearest commercial

building is shown to be within the general `good’ to `reasonable’ design range for various types of offices with an open window and would therefore be acceptable.

6.20 Table 6.5 below provides details of the predicted noise levels for the night-time

period when there will not be any HGV or mobile plant movements. The CHP enclosures and biofilter system are included in the night-time assessment.



Table 6.5: Predicted Noise Contribution from the AD Facility (night-time) Receptor Position Predicted

noise contribution from fixed plant LAeq dB

Internal noise level based on BS8233: LAeq dB (night-time)

Noise criteria based on BS4142 limit LAeq dB (night-time)

BS8233: 1999 `good’ internal design level LAeq dB 8hrs

WHO Night-time limits LAeq8hrs dB


22 11-16 35 <35 40


30 17-22 33 <35 40


22-29 9-20 31 <35 40


28-30 16-21 31 <35 40

6.21 The above table shows that night-time noise levels are within BS4142: 1997 limits,

WHO guidelines for night-time noise and within ` good’ design according to BS8233:1999 internal noise limits. The impact magnitude would be negligible and a neutral impact significance.

Surplus Gas Burner Noise 6.22 During emergency periods when the CHP unit is switched off, which is an unusual

situation, then the gas needs to be burned off, the resultant noise level with this operating is provided below during the night-time period (i.e. highest likely):

Table 6.6: Predicted Noise Contribution from the Gas Burner (night-time) Receptor Position Predicted

noise contribution from gas burner LAeq dB

Cumulative predicted noise with gas burner, bio-filter fans & pumps LAeq dB

Internal noise level based on BS8233: LAeq dB (night-time)

Noise criteria based on BS4142 limit LAeq dB (night-time)

BS8233: 1999 `good’ internal design level LAeq dB 8hrs


8 21 35 <35 40


10 26 33 <35 40


4-9 19-26 31 <35 40


9 25 31 <35 40



Road Traffic Noise:

6.23 The proposed development is likely to increase traffic flows along Follingsby Lane. It is therefore necessary to establish the likely impact as a result of this increased traffic flow, on existing residential receptors. The impact assessment assesses the potential increase in noise due to increased traffic flows based on the highest increase in road traffic volumes.

6.24 The methodology found within Calculation of Road Traffic Noise (“CRTN”) has been

used for calculation of road traffic noise. This has been undertaken to predict the likely increase in noise associated with increased traffic flow when the site is operational. The traffic flow data provided by Bancroft Consulting has been used and the noise level at the nearest residential locations has been calculated, based on the above methodology. The results of these calculations are detailed in Table 6.7.

6.25 The daily traffic flows for vehicle movements on and off the Site have been used to

show the change in noise climate at the nearest existing dwellings (Table 6.7). 6.26 The nearest existing dwellings are potentially affected by traffic flow onto the Site

and any increased traffic flow onto Folingsby Lane travelling west of the site entrance. For details of traffic flow data see the Transport Statement.

6.27 The following table provides details of the predicted impact due to the increased

traffic flow. The existing dwelling positioned off Follingsby Lane located south west of the site would be mainly affected by any direct traffic flow increase along this section of the road.

6.28 The Transport Statement indicates that the increase in road traffic movements on a

weekday basis would be 82 two-way daily Heavy Goods Vehicles and 10 two-way daily staff vehicles. The lowest measured baseline flow during the weekday ATC survey has been used to assess the impact to represent the highest likely impact. Table 6.7: Predicted Road Traffic noise increase at Existing Residential Properties During Daytime based on highest likely traffic movements Location (Refer to Figure 2)

Predicted noise level without development (daytime) LAeq dB11hour

Highest Noise contribution from HGV movements LAeq dB11hour

Resultant noise level with development LAeq dB1hour

Change in noise levels (daytime) LAeq dB1hour


48.6 47.6 51.1 +2.5

Evaluation of Impacts

6.29 The impact due to the proposed development for the daytime scenario shows a

minor magnitude of impact in the short-term and negligible in the long-term (i.e. refer to Tables 4.1 & 4.2) at the existing property closest to the transport route from and to the site and is therefore not deemed to be significant.



7.0 CONCLUSIONS Introduction 7.1 Noise levels have been considered and assessed during the construction and the

operational phases of the proposed development. Relevant and appropriate noise guidance and standards have been used to determine the noise impact and where appropriate amelioration measures are proposed to mitigate noise sources to acceptable and reasonable levels. This noise assessment has been undertaken to inform and guide the detailed design of the development such that any likely noise impact on existing dwellings or offices is minimised.

7.2 To establish any likely impact from noise it was necessary to establish the existing

noise climate at the site. This information has helped determine any likely noise impact on nearest receptors to the site during the construction and operation of the proposed development.

7.3 The Environmental Health Officer at South Tyneside Council has been formally

consulted for the assessment to establish appropriate noise criteria. Baseline Noise Conditions

7.4 Typical background noise levels during the Sunday and Monday morning daytime

period ranged on average between 39dB(A) and 55dB(A) L90 and a residual noise level of 50dB(A) to 58dB(A) Leq (at the nearest residential boundary). The background noise levels through the night-time period are shown to be typically around 37 to 43dB LA90 and residual levels of between 47dB(A) to 52dB(A) Leq .

7.5 Subjective observations at nearest residential properties indicate that distant noise

from road traffic, occasional local road traffic and birdsong form the general noise climate at the nearest receptors.

Likely Effects 7.6 During the construction phase of the development, there will be a variety of noise

sources in use at different stages and their associated activities will vary from day to day. The highest noise levels relative to nearest receptors are likely to occur at the start of the construction in the particular working area during preparation work, infrastructure development and building construction. These activities do not normally occur over long periods of time.

7.7 During the operation of the site it is concluded in respect of the resultant residual

impact, that with the proposed mitigation measures, there is likely to be a negligible impact magnitude and neutral impact significance. According to BS4142 during daytime periods complaint is unlikely and for night-time complaint unlikely and absolute levels would be well within sleep disturbance criteria according to WHO guidance and BS8233: 1999.

7.8 The Transport Statement concludes that there would be no significant increase in

road traffic movements on local roads and therefore there is likely to be a negligible to minor impact in road traffic noise.



Mitigation 7.9 For construction noise, in accordance with appropriate standards, best practical

means would be employed to control the noise generation. 7.10 For operational noise proposed mitigation measures will ensure that the resultant

noise levels are within appropriate guidance and standards. The measures are based on the employment of Best Available Techniques (BAT) to mitigate any potential peak noise sources.

Conclusions 7.11 The noise levels generated during construction are likely to result in an impact

magnitude classification of negligible at residential receptors and slight at commercial receptors and neutral to minor in terms of impact significance. The construction phase noise impacts from the facility are therefore not considered to represent a significant impact.

7.12 During the operational phase, we have provided an example of mitigation measures

that could be implemented to control noise from the associated plant on site and management control of the site. The predicted noise levels are shown to give a negligible impact magnitude and neutral impact significance.



8.0 NOISE CONTROL MEASURES

Construction Noise:

8.1 In accordance with BS5228, best practical means would be employed to control the noise generation (e.g. using equipment that is regularly maintained, careful positioning of noisy plant to minimise noise in direction of residents, purchase/hire low noise plant or where practicable equipment fitted with silencers or acoustic hoods, avoid running plant or engines when not in use, avoid using reverse alarms unless `white noise’ type wherever practicable etc.).

8.2 In consideration of the likely highest levels of construction noise which would occur

during short-term activities at the closest approach to nearest dwellings around the site, the following approach would be incorporated in the construction management programme:

Restriction of construction hours to non-sensitive times of day would normally

form part of the planning consent conditions. Careful positioning of plant to minimise noise radiating in direction of nearest

sensitive receptors. Avoid un-necessary operation of plant and vehicle engines when not in use. Create any proposed local earth mound screens at the start of the

construction phase.

Road Traffic Noise 8.3 The road traffic increase as a result of the development is shown to produce a minor

impact magnitude in the short-term and negligible impact in the long term according to the DMRB assessment methodology. In terms of impact significance there would be a neutral to slight impact in road traffic noise at the nearest receptors off Follingsby Lane.

Industrial Noise 8.4 The Local Authority has been consulted in respect of noise limit criteria for site

operations, to ensure that local resident amenity is protected. 8.5 The predicted noise levels from the site have been calculated with the following

example of mitigation measures in place to ensure that the resultant noise levels are within appropriate guidance and standards.

Screening 8.6 The existing earth mound screen along the western boundary of the site would

assist in reducing noise radiating towards the commercial buildings and residential dwellings in this direction.



CHP Unit 8.7 The Combine Heat & Power unit to be fitted within an acoustic enclosure designed

to limit the noise `break-out’ to a level not exceeding 75dB(A) @ 1m Leq5mins and approximately 65dB(A) @ 10m Leq5mins and appropriate silencers fitted to the enclosure ventilation openings and exhaust.

Bio-filter System 8.8 The Bio-filter system is housed within a concrete structure and therefore general fan

casing noise is contained. The fan stack or any ventilation opening to atmosphere should be designed to a noise level not exceeding 70dB(A) @ 1m Leq5mins.

Pumps, Compressor & Associated Material Transfer & Heating Plant 8.9 Associated transfer and heating plant for the digester, storage tanks and CHP unit

designed to reduce airborne noise from pumps to a level not exceeding 72dB(A) Leq5mins at 1m.

Mobile Plant

8.10 Any use of mobile plant within the reception building or occasionally externally should be fitted with a `white noise’ reverse alarm (e.g. Brigade Electronics `smart alarms’) to avoid the use of tonal `beeper’ alarms. Alternatively, turning off the reverse alarm by the use of a banks man or visual alarm would achieve the same result subject to an appropriate health and safety risk assessment. Where possible, the HGV route through site should be designed such that reverse alarm use is minimised.

Site Management:

8.11 Minimise reversing of HGVs, ensure doors into the CHP enclosure are kept closed, avoid un-necessary revving of HGV engines and engines to be turned off when vehicle is stationary when external to the reception building.



REFERENCES

BS4142: 1997 Method for rating industrial noise affecting mixed residential and industrial areas. Planning Policy Guidance (PPG) 24 `Planning and Noise’: 1994 BS8233: 1999 Sound Insulation and noise reduction for buildings – Code of Practice Guidelines for Community Noise – World Health Organisation: April 1999 BS7445:2003 - Description and measurement of environmental noise. Calculation of Road Traffic Noise (CRTN): 1988 DETR `Guidance on the new approach to appraisal’:1998 Department of Transport - Transport Analysis Guidance (TAG unit 3.3.2) November 2006

Design Manual for Roads and Bridges, Volume 11, Environmental Assessment: 2008.

BS5228-1: 2009 `Code of practice for noise and vibration control on construction and open sites’ ISO 9613-2: Acoustics – Attenuation of sound during propagation outdoors: General method of calculation



FIGURES



Figure 1: Site Layout



Figure 2: Noise Monitoring & Receptor Positions



APPENDIX 1

BASIC ACOUSTIC TERMINOLOGY Sound is produced by mechanical vibration of a surface, which sets up rapid pressure fluctuations in the surrounding air. Sound Pressure Level is a measurement of the size of these pressure fluctuations. It is expressed in decibels (dB) on a logarithmic scale. Each 3 dB increase in sound pressure level represents a doubling of the sound energy. The threshold of hearing is approximately 0 dB. The rate at which the pressure fluctuations occur determines the pitch or frequency of the sound. The frequency is expressed in Hertz (Hz), that is, cycles per second. The human ear is sensitive to sounds from about 20 Hz to 20,000 Hz. Although sound can be of one discrete frequency - a 'pure tone' - most noises are made up of many different frequencies. The human ear is more sensitive to some frequencies than others, and modern instruments can measure sound in the same 'subjective' way. This is the basis of the A-weighted sound level dB(A), normally used to assess the effect of noise on people. The dB(A) weighting emphasis’s or reduces the importance of certain frequencies within the audible range. Noise Measurement The measurement of sound pressure level is only really meaningful where the level of noise is constant. In the typical industrial environment noise levels can vary widely and sometimes short duration high levels of noise are interspersed with periods of relative quiet. The most widely used means of 'averaging' the noise over a period of time is the Equivalent Continuous Sound Level. Normally written as L

Aeq this value takes into account both the level of noise and the length of time over which it occurs. There are many meters available which are capable of measuring L

Aeq by

electronic integration over the measurement period. The L

Aeq or A-weighted equivalent continuous noise level is a measure of the total noise energy over

a stated time period and includes all the varying noise levels and re-expresses as an 'average', allowing for the length of time for which each noise level was presented. The L

An parameters are defined as the noise levels which are exceeded for n% of the monitoring

period, thus, for example, the LA90 parameter is the noise level exceeded for 90% of the 15 minute period, i.e. 13.5 minutes. The LA50 parameter is the noise level exceeded for 50% of the hourly period, i.e. 30 minutes, etc. The L

max parameter is the maximum RMS A-weighted noise level

occurring during the measurement period.



The definition in layman’s terms is given below for terminology used in the measurement and results obtained during the survey work. A-weighting: Normal hearing covers the frequency (pitch) range from about 20Hz to 20,000 Hz but sensitivity of the ear is greatest between about 500Hz and 5000Hz. The "A-weighting" is an electrical circuit built into noise meters to mimic this characteristic of the human ear. Ambient noise: The totally encompassing sound in a given situation at a given time usually composed of sound from many sources near and far. Attenuation: Noise reduction Background noise: The general quiet periods of ambient noise when the noise source under investigation is not there. Decibel (dB): The unit of measurement for sound based on a logarithmic scale. 0dB is the threshold of normal hearing; 140dB is the threshold of pain. A change of 1dB is only detectable under controlled laboratory conditions. dB(A) [decibel A weighted]: Decibels measured on a sound level meter incorporating a frequency weighting (A weighting) serves to distinguish sounds of different frequency (or pitch) in a similar way to how the human ear responds. Measurements in dB(A) broadly agree with an individual's assessment of loudness. A change of 3dB(A) is the minimum perceptible under normal everyday conditions, and a change of 10dB(A) corresponds roughly to doubling or halving the loudness of sound. dB(C): [decibel C weighted]: Frequency weighting which does not alter low frequency octave band levels by very much compared to `A' weighting. Similar to linear reading (i.e. linear does not alter frequency spectra at all) Frequency (Hz): The number of sound waves to pass a point in one second. LAeq: This is a noise index used to describe the "average" level of a noise that varies with time (T). It allows for the different sensitivities of the human ear to different frequencies (pitch), and averages fluctuating noise levels in a manner, which correlates well with human perceptions of loudness. LA10,T: This noise index gives an indication of the upper limit or peak levels of the fluctuating noise. It is the "A weighted" noise level exceeded for 10 per cent of the specified measurement period (T). e.g. If the measurement period was over 10 hours and the LA10 reading was say 60dB, then this means that for 1 hour out of 10 the level went above 60dB. LA90,T: This noise index gives an indication of the lower limit or levels of the fluctuating noise. It is the "A weighted" noise level exceeded for 90 per cent of the specified measurement period (T). e.g. If the measurement period was over 10 hours and the LA90 reading was say 50dB, then this means that for 9 hours out of 10 the level went above 50dB. LAmax: This is the highest `A’ weighted noise level recorded during a noise measurement period. Residual noise: The ambient noise remaining at a given position in a given situation when the noise source under investigation is not there. Specific noise: The noise source under investigation for assessing the likelihood of complaints



Examples of typical noise levels:

Source/Activity Indicative noise level [dB(A)]

Threshold of hearing 0 Rural night-time background 20-40 Quiet bedroom 35 Wind farm at 350m 35-45 Busy road at 5km 35-45 Car at 65km/h at 100m 55 Busy general office 60 Conversation 60 Truck at 50km/h at 100m 65 City Traffic at 5m 75-85 Pneumatic drill at 7m 95 Jet aircraft at 250m 105 Threshold of pain 140



APPENDIX 2

Instrumentation and Fieldwork Details Background noise measurements were undertaken at the site boundary adjacent to the nearest residential property boundary to identify typical noise levels before the proposed site is built. The monitoring of residual and background noise was carried out during a 44-hour period from late afternoon on a Saturday through to early afternoon on the Monday, such that typical and representative background noise levels could be determined for the assessment. Instrumentation:

Manufacturer Description Type Calibration Due date

Serial No.

Cirrus Integrating sound level meter

171A January 2014 G061253


171A March 2014 G066350


811B December 2013

C17796FD

Cirrus Electronic Calibrator CR: 513A June 2014 031692 The noise meters used during the survey is a precision grade type 1 meter to IEC 651 standard and accuracy. Calibration Setting: 94dB @ 1 kHz Meter Setting: Fast Response Fieldwork Details: Site: Follingsby Lane, Wardley, Gateshead Date of test: 14th – 15th July 2013 Start Time: 0700 hours (29 hour monitoring period) Calibration: Before and after: 94dB at 1kHz Survey Description and Procedure: The noise meters were calibrated prior to and after measurements to ensure accuracy of results. Background noise measurements were taken in the vicinity of nearest residential propertyies or at a representative position relative to local noise sources (e.g. local road network) during a Sunday period when noise levels are likely to be at their lowest. Refer to Figure 2 for monitoring locations. Background noise readings were taken at a height of 1.5m from the ground. Readings of LAeq, LA10, LA90 and LAmax were recorded over 15 minute intervals. Calibration

The noise meters were calibrated with the electronic calibrator prior to commencement and on completion of the survey. No significant drift in calibration was observed.



Meteorological Conditions

Weather details were recorded during the period of the survey and are detailed below: Sunday 14th July 2013

During the daytime it was dry, variable cloud with light westerly winds (1-3m/s). Temperature 15-23deg C.

The night-time monitoring period was dry, clear skies, with light west-south-west to

westerly wind conditions (1-2m/s). Temperature 9-14degC. Monday 15th July 2013 The monitoring period remained dry, clear skies and a light westerly wind (1-2m/s). Temperature 15-21degC. The above climatic conditions were suitable for monitoring environmental noise levels in accordance with advice given in BS7445: 2003 `Description and measurement of environmental noise’



APPENDIX 3 Baseline Noise Measurement Results at Fixed Location



Noise Survey ResultsDate: Sunday 14th July 2013 TABLE 1

Location: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 1 - West off Follingsby Lane

Instrumentation: Cirrus 811B Integrating Precision SLM (C17796FD) Calibration due Dec. 2013Weather Conditions: Dry, partly cloudy, light westerly winds (1-3m/s), temp. 16-23degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations

(mins.) (dB) (dB) (dB) (dB)

07:00 15:00 45.6 47.1 40.2 63.8 Distant road traff ic noise07:15 15:00 45.2 47.0 40.9 66.5 Distant road traff ic noise07:30 15:00 46.7 48.5 41.3 64.807:45 15:00 46.5 48.4 39.0 65.808:00 15:00 45.0 47.5 41.1 67.408:15 15:00 47.8 50.2 41.9 64.208:30 15:00 49.5 50.6 43.4 76.908:45 15:00 49.9 50.2 43.2 80.009:00 15:00 48.5 51.4 44.6 59.509:15 15:00 50.3 53.0 45.1 62.709:30 15:00 48.6 50.7 45.1 66.109:45 15:00 49.2 51.2 46.6 56.910:00 15:00 48.1 50.1 44.5 60.210:15 15:00 49.8 52.4 45.7 64.310:30 15:00 51.6 54.8 47.2 61.110:45 15:00 52.1 54.3 48.8 68.311:00 15:00 52.2 54.5 49.4 60.711:15 15:00 54.0 57.1 48.7 65.411:30 15:00 53.3 55.8 49.4 61.511:45 15:00 53.5 55.8 50.8 61.712:00 15:00 55.2 57.7 51.6 65.712:15 15:00 55.1 57.6 51.6 64.212:30 15:00 55.0 57.6 51.0 66.812:45 15:00 56.0 58.5 52.0 65.913:00 15:00 55.6 57.9 52.0 67.013:15 15:00 56.9 59.1 54.0 69.113:30 15:00 56.4 58.8 52.0 71.513:45 15:00 56.9 59.2 53.2 69.614:00 15:00 57.2 59.7 53.1 68.914:15 15:00 56.0 58.5 52.1 65.114:30 15:00 57.4 60.0 53.6 67.114:45 15:00 57.7 60.1 54.4 67.3

Average 0700-1500 53.5 54.2 47.7 56.9-80.0





Instrumentation: Cirrus 811B Integrating Precision SLM (C17796FD) Calibration due Dec. 2013Weather Conditions: Dry, partly cloudy-clear, light westerly winds (1-2m/s), temp. 15-23degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


15:00 15:00 57.1 59.4 53.8 65.7 Distant road traff ic noise15:15 15:00 57.7 59.9 54.8 69.415:30 15:00 57.6 59.8 54.1 67.315:45 15:00 57.8 60.3 54.3 67.116:00 15:00 58.5 60.6 54.5 73.116:15 15:00 58.8 60.6 54.7 73.216:30 15:00 58.0 60.1 55.3 67.416:45 15:00 58.1 60.2 54.8 70.417:00 15:00 57.5 59.7 54.6 67.817:15 15:00 57.2 59.6 53.7 65.417:30 15:00 57.7 59.9 54.7 66.717:45 15:00 58.6 60.8 55.6 67.418:00 15:00 58.6 61.1 55.1 69.218:15 15:00 58.8 60.8 55.3 75.418:30 15:00 58.8 60.8 55.5 72.518:45 15:00 59.2 61.2 55.8 74.819:00 15:00 58.1 60.6 54.4 65.619:15 15:00 58.2 60.2 54.6 76.219:30 15:00 57.4 59.7 53.8 69.119:45 15:00 57.2 59.8 53.2 66.720:00 15:00 56.5 58.8 53.1 68.520:15 15:00 57.5 59.8 54.0 68.920:30 15:00 57.7 60.3 53.3 69.120:45 15:00 56.6 59.0 53.2 66.121:00 15:00 56.5 59.2 51.2 64.621:15 15:00 55.8 58.4 51.5 65.521:30 15:00 54.6 57.5 49.4 69.921:45 15:00 54.1 56.9 49.2 65.922:00 15:00 54.5 57.3 49.6 64.722:15 15:00 55.6 57.5 50.2 72.122:30 15:00 54.0 57.0 47.2 66.422:45 15:00 55.2 58.3 49.5 64.2

Average 1500-2300 57.3 59.5 53.3 64.2-76.2



Noise Survey ResultsDate: Sunday 14th - Monday 15th July 2013 TABLE 3

Site: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 1 - West off Follingsby Lane

Instrumentation: Cirrus 811B Integrating Precision SLM (C17796FD) Calibration due Dec. 2013Weather Conditions: Dry, clear, light WSW-W winds (1-2m/s), temp. 9-14degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


23:00 15:00 55.2 58.0 50.1 65.6 Distant road traff ic noise23:15 15:00 54.3 57.2 48.3 67.623:30 15:00 53.6 56.7 48.1 65.423:45 15:00 54.1 57.1 48.9 66.500:00 15:00 53.1 56.5 45.7 65.000:15 15:00 53.0 56.1 47.5 65.600:30 15:00 51.3 55.2 43.0 63.500:45 15:00 51.5 55.2 43.7 66.201:00 15:00 50.3 54.0 40.7 65.001:15 15:00 48.0 51.6 39.4 64.201:30 15:00 48.8 52.5 39.7 61.601:45 15:00 48.9 52.4 40.2 70.202:00 15:00 45.9 50.0 34.8 61.402:15 15:00 47.8 52.2 34.5 61.902:30 15:00 48.0 52.0 36.4 60.702:45 15:00 48.2 52.0 40.4 60.503:00 15:00 49.2 52.9 40.9 62.503:15 15:00 47.1 51.0 35.6 64.403:30 15:00 49.2 53.2 37.6 63.403:45 15:00 47.9 51.9 37.1 63.004:00 15:00 47.4 51.5 38.2 59.804:15 15:00 49.4 53.0 40.1 60.904:30 15:00 49.1 52.5 39.5 60.904:45 15:00 48.7 51.7 42.8 62.505:00 15:00 50.4 52.2 41.5 64.805:15 15:00 51.1 54.7 43.9 63.105:30 15:00 49.1 51.6 44.9 58.505:45 15:00 52.1 54.6 48.0 63.306:00 15:00 54.4 56.8 49.9 64.606:15 15:00 54.9 57.0 51.3 71.906:30 15:00 53.3 54.9 50.5 64.806:45 15:00 54.7 56.6 51.6 68.6

Average 2300-0700 51.4 53.9 43.0 58.5-71.9Average 0700-2300 55.8 56.9 50.5 56.9-80.0



Noise Survey ResultsDate: Monday 15th July 2013 TABLE 4


Instrumentation: Cirrus 811B Integrating Precision SLM (C17796FD) Calibration due Dec. 2013Weather Conditions: Dry, clear skies, temperature 15-21degC, light westerly wind (1-2m/s)Calibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


07:00 15:00 56.9 59.7 53.6 66.7 Distant road traff ic noise07:15 15:00 57.2 59.2 54.2 71.9 Distant road traff ic noise07:30 15:00 58.7 60.7 54.6 72.307:45 15:00 57.0 59.1 51.9 69.808:00 15:00 55.7 58.3 56.3 68.908:15 15:00 60.0 61.9 55.0 71.208:30 15:00 58.9 59.6 55.7 72.408:45 15:00 57.6 58.8 54.0 69.909:00 15:00 55.8 60.4 55.6 68.709:15 15:00 59.0 60.8 54.7 70.409:30 15:00 55.5 56.9 54.2 71.109:45 15:00 57.8 59.7 55.7 68.910:00 15:00 56.1 58.1 52.1 71.310:15 15:00 58.9 61.5 55.4 70.510:30 15:00 59.0 61.6 55.7 68.710:45 15:00 57.7 58.7 55.8 67.811:00 15:00 57.3 59.4 54.8 69.411:15 15:00 59.0 61.8 53.5 68.611:30 15:00 56.5 57.9 54.9 69.111:45 15:00 57.4 59.2 55.6 70.2

Average 0700-1200 57.7 59.7 54.7 67-72



Noise Survey Results TABLE 5

Date: Sunday 14th July 2013Location: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 2 - South East off Follingsby Lane

Instrumentation: Cirrus 171A Real Time Analyser (G066350) Calibration due March 2014Weather Conditions: Dry, partly cloudy, light westerly winds (1-3m/s), temp. 16-23degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


07:00 15:00 51.3 47.4 32.6 82.0 Distant road traff ic noise from A18407:15 15:00 40.1 40.8 33.5 59.0 Distant road traff ic noise from A18407:30 15:00 52.9 47.3 34.5 75.6 Distant road traff ic noise from A18407:45 15:00 55.2 45.0 33.7 77.408:00 15:00 53.1 47.6 34.0 75.508:15 15:00 53.1 41.8 34.2 76.208:30 15:00 52.6 40.8 34.0 74.908:45 15:00 56.4 45.5 33.6 79.109:00 15:00 52.0 43.7 33.3 73.109:15 15:00 47.5 42.2 33.9 70.109:30 15:00 52.6 51.8 35.4 73.709:45 15:00 52.4 42.3 35.6 74.810:00 15:00 55.1 46.6 35.9 81.110:15 15:00 54.5 44.2 36.4 80.210:30 15:00 62.3 60.5 38.2 89.510:45 15:00 51.4 46.5 38.7 76.211:00 15:00 55.3 51.7 39.1 77.011:15 15:00 56.0 52.4 38.2 74.711:30 15:00 56.6 50.5 38.9 75.511:45 15:00 55.0 47.4 39.9 74.312:00 15:00 53.2 47.6 39.2 76.512:15 15:00 53.1 49.6 39.4 73.912:30 15:00 55.8 52.2 40.0 74.812:45 15:00 56.3 53.1 40.6 79.113:00 15:00 56.0 53.1 40.9 78.213:15 15:00 50.9 46.8 40.3 74.313:30 15:00 54.2 48.9 40.5 76.913:45 15:00 53.3 48.6 41.2 76.314:00 15:00 53.2 53.3 40.7 73.314:15 15:00 52.1 51.5 40.0 71.314:30 15:00 52.3 49.9 40.7 73.914:45 15:00 54.6 52.1 40.4 73.9

Average 0700-1500 54.6 48.2 37.4 59-89




Location: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 2 - South East off Follingsby Lane

Instrumentation: Cirrus 171A Real Time Analyser (G066350) Calibration due March 2014Weather Conditions: Dry, partly cloudy-clear, light westerly winds (1-2m/s), temp. 15-23degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


15:00 15:00 59.2 56.2 41.7 84.6 Distant road traff ic noise from A18415:15 15:00 53.9 51.9 40.4 76.615:30 15:00 57.7 55.3 41.1 80.615:45 15:00 54.7 52.4 40.6 75.116:00 15:00 52.9 51.6 41.0 74.616:15 15:00 55.3 53.6 41.4 75.716:30 15:00 53.8 49.6 40.6 77.016:45 15:00 56.6 53.0 40.8 76.617:00 15:00 57.3 54.2 41.3 77.517:15 15:00 54.6 50.3 40.6 75.717:30 15:00 49.6 47.2 40.9 74.417:45 15:00 53.2 52.6 41.6 76.218:00 15:00 54.5 52.2 41.5 76.318:15 15:00 53.1 50.5 41.0 79.818:30 15:00 52.7 51.4 42.3 75.318:45 15:00 52.6 52.9 41.8 73.619:00 15:00 49.5 49.1 41.7 71.219:15 15:00 54.6 48.7 40.7 76.319:30 15:00 55.1 51.6 41.5 73.819:45 15:00 52.9 50.3 40.3 72.820:00 15:00 56.2 52.5 40.7 74.520:15 15:00 60.2 59.4 41.8 78.520:30 15:00 57.5 54.5 41.2 76.120:45 15:00 59.4 58.9 40.0 79.821:00 15:00 57.3 58.8 40.4 76.521:15 15:00 54.4 48.5 39.8 75.221:30 15:00 56.5 53.7 39.5 75.021:45 15:00 55.7 51.5 39.8 74.022:00 15:00 56.3 54.4 40.6 74.922:15 15:00 56.5 55.0 40.1 78.322:30 15:00 54.0 48.6 39.9 76.322:45 15:00 56.0 53.4 41.2 76.3

Average 1500-2300 55.7 52.6 40.9 71-85




Site: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 2 - South East off Follingsby Lane

Instrumentation: Cirrus 171A Real Time Analyser (G066350) Calibration due March 2014Weather Conditions: Dry, clear, light WSW-W winds (1-2m/s), temp. 9-14degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


23:00 15:00 54.9 50.9 40.6 76.9 Distant road traff ic noise from A18423:15 15:00 54.5 53.2 41.1 75.923:30 15:00 52.9 51.7 42.2 76.123:45 15:00 49.5 50.3 41.9 70.900:00 15:00 52.2 48.5 40.2 74.300:15 15:00 53.3 51.2 41.0 77.500:30 15:00 49.3 51.2 40.9 70.800:45 15:00 49.8 51.4 41.2 74.601:00 15:00 53.5 51.6 41.9 75.101:15 15:00 46.3 50.0 39.5 57.901:30 15:00 50.8 49.5 38.5 77.601:45 15:00 51.9 47.7 37.2 76.202:00 15:00 43.2 44.7 35.4 64.202:15 15:00 51.8 47.1 36.5 79.902:30 15:00 44.4 48.0 37.1 59.202:45 15:00 53.4 48.9 39.2 78.403:00 15:00 40.7 43.1 35.4 59.403:15 15:00 47.4 40.0 34.7 74.303:30 15:00 49.5 41.3 33.1 76.503:45 15:00 43.0 39.1 33.5 67.904:00 15:00 48.4 41.0 35.9 75.404:15 15:00 39.7 41.9 35.8 51.604:30 15:00 51.4 44.5 37.1 75.304:45 15:00 50.6 42.2 36.7 74.105:00 15:00 48.0 41.6 37.0 74.505:15 15:00 48.3 42.1 37.9 72.805:30 15:00 53.7 46.0 40.3 73.605:45 15:00 53.0 47.1 42.0 76.806:00 15:00 54.0 49.1 45.3 77.406:15 15:00 54.8 49.7 45.9 74.806:30 15:00 58.6 56.6 46.3 75.5 Distant road traff ic noise from A18406:45 15:00 56.4 53.1 45.0 73.4

Average 2300-0700 52.0 47.3 39.3 52-79Average 0700-2300 55.2 50.4 39.1 59-89



Noise Survey Results TABLE 8

Date: Monday 15th July 2013Location: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 2 - South East off Follingsby Lane

Instrumentation: Cirrus 171A Real Time Analyser (G066350) Calibration due March 2014Weather Conditions: Dry, clear skies, temperature 15-21degC, light westerly wind (1-2m/s)Calibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


07:00 15:00 51.7 53.4 47.7 78.7 Distant road traff ic noise from A18407:15 15:00 52.7 54.2 47.6 77.0 Distant road traff ic noise from A18407:30 15:00 54.9 55.7 50.2 76.6 Distant road traff ic noise from A18407:45 15:00 57.2 53.4 49.4 77.508:00 15:00 52.8 58.3 50.5 75.708:15 15:00 54.9 49.9 50.4 74.408:30 15:00 54.4 54.7 50.0 76.208:45 15:00 58.7 60.4 49.8 76.309:00 15:00 50.5 53.9 49.9 79.809:15 15:00 50.4 54.2 50.8 76.509:30 15:00 56.7 59.8 51.7 78.809:45 15:00 54.7 46.2 50.4 77.210:00 15:00 57.6 58.8 50.5 80.210:15 15:00 54.3 53.3 50.7 78.810:30 15:00 54.4 56.8 52.0 81.110:45 15:00 53.2 54.7 50.7 77.511:00 15:00 58.8 60.9 50.6 76.311:15 15:00 55.6 56.4 49.3 78.811:30 15:00 55.5 53.8 50.9 80.411:45 15:00 53.3 52.6 51.2 79.9

Average 0700-1200 55.2 55.1 50.2 74-81




Location: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 3 - North East off W Pastures

Instrumentation: Cirrus 171A Real Time Analyser (G061253) Calibration due Jan 2014Weather Conditions: Dry, partly cloudy, light westerly winds (1-3m/s), temp. 16-23degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


07:00 15:00 45.4 47.9 38.5 63.2 Occasional road traff ic07:15 15:00 45.9 47.3 38.6 63.5 Occasional road traff ic07:30 15:00 44.2 46.8 37.5 64.1 Occasional road traff ic07:45 15:00 45.3 46.2 37.1 62.908:00 15:00 44.8 46.5 38.7 65.608:15 15:00 46.4 49.9 38.9 64.608:30 15:00 44.9 47.1 39.1 62.408:45 15:00 46.2 48.8 37.6 66.209:00 15:00 46.3 47.0 38.0 63.809:15 15:00 45.8 47.7 39.3 64.709:30 15:00 47.0 50.0 42.2 60.409:45 15:00 46.2 49.8 41.0 59.810:00 15:00 46.7 49.8 40.9 63.710:15 15:00 44.5 44.9 40.0 63.510:30 15:00 47.3 47.5 40.5 70.010:45 15:00 50.6 52.2 43.6 69.611:00 15:00 51.9 54.3 45.0 67.611:15 15:00 50.5 51.9 42.3 73.011:30 15:00 45.8 47.4 40.4 63.411:45 15:00 50.5 52.8 45.7 65.312:00 15:00 53.4 55.7 44.4 73.712:15 15:00 47.9 50.1 43.6 62.912:30 15:00 48.4 51.3 42.6 64.412:45 15:00 49.2 51.3 43.0 63.713:00 15:00 51.3 52.1 44.1 73.213:15 15:00 50.4 52.5 44.4 66.713:30 15:00 50.5 53.1 46.0 64.713:45 15:00 51.0 52.9 44.7 68.314:00 15:00 50.6 53.0 44.5 66.114:15 15:00 49.9 51.7 44.8 67.214:30 15:00 49.2 50.9 43.8 67.214:45 15:00 51.9 54.8 46.2 69.1

Average 0700-1500 48.8 50.2 41.8 63-74





Instrumentation: Cirrus 171A Real Time Analyser (G061253) Calibration due Jan 2014Weather Conditions: Dry, partly cloudy-clear, light westerly winds (1-2m/s), temp. 15-23degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


15:00 15:00 50.0 52.3 45.2 61.4 Occasional road traff ic15:15 15:00 52.0 54.0 45.4 72.9 Occasional road traff ic15:30 15:00 50.9 54.0 44.5 68.015:45 15:00 50.0 52.0 45.1 66.316:00 15:00 49.8 51.9 45.0 67.116:15 15:00 51.8 54.4 46.0 67.116:30 15:00 51.0 53.3 45.6 68.216:45 15:00 49.8 52.1 45.7 61.617:00 15:00 51.2 53.7 45.1 67.517:15 15:00 51.2 54.2 45.5 63.217:30 15:00 51.2 53.7 46.2 63.017:45 15:00 53.6 55.4 45.4 71.418:00 15:00 52.2 54.9 45.9 64.218:15 15:00 51.7 54.4 45.8 66.818:30 15:00 51.4 54.1 45.9 66.118:45 15:00 51.8 54.4 46.3 63.419:00 15:00 52.5 55.2 46.5 69.119:15 15:00 52.4 54.7 45.3 68.919:30 15:00 51.5 53.8 45.2 66.719:45 15:00 49.0 51.3 42.6 65.620:00 15:00 45.1 47.1 39.0 65.720:15 15:00 54.8 54.0 40.3 76.720:30 15:00 44.9 44.9 36.3 70.120:45 15:00 43.1 42.2 34.9 64.121:00 15:00 51.0 50.4 35.1 71.121:15 15:00 44.6 45.1 34.8 63.521:30 15:00 42.1 42.4 34.7 60.921:45 15:00 42.1 42.2 34.9 60.522:00 15:00 47.6 49.4 35.7 66.222:15 15:00 46.2 47.9 36.0 65.222:30 15:00 44.7 45.0 35.5 64.422:45 15:00 44.1 45.1 36.8 62.9

Average 1500-2300 50.3 50.9 41.9 60.5-76.7




Site: Former UK Coal Stocking Site,Off Follingsby Lane,Wardley Client: Tamar EnergyProject: AD FacilityData: Position 3 - North East off W Pastures

Instrumentation: Cirrus 171A Real Time Analyser (G061253) Calibration due Jan 2014Weather Conditions: Dry, clear, light WSW-W winds (1-2m/s), temp. 9-14degCCalibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


23:00 15:00 43.1 45.0 35.5 63.3 Occasional road traff ic23:15 15:00 44.0 44.0 35.6 62.6 Occasional road traff ic23:30 15:00 44.2 43.5 35.1 68.523:45 15:00 42.5 42.5 35.0 63.500:00 15:00 45.2 44.8 35.9 69.900:15 15:00 39.9 42.3 35.8 54.700:30 15:00 42.6 43.3 36.3 62.300:45 15:00 42.6 44.5 35.8 61.201:00 15:00 40.7 43.3 34.8 56.701:15 15:00 35.4 37.3 32.2 50.201:30 15:00 39.2 36.2 31.9 60.301:45 15:00 34.2 36.4 31.0 48.402:00 15:00 42.8 40.6 32.1 63.302:15 15:00 38.7 38.8 32.5 57.202:30 15:00 38.4 37.9 32.9 58.102:45 15:00 41.0 40.7 33.1 60.403:00 15:00 44.6 39.0 32.6 71.403:15 15:00 36.1 37.6 33.7 47.903:30 15:00 36.5 38.0 33.9 49.703:45 15:00 45.9 47.8 32.5 65.204:00 15:00 47.3 53.0 35.3 61.604:15 15:00 41.7 43.2 36.0 61.904:30 15:00 42.3 45.3 38.0 54.204:45 15:00 44.8 48.4 37.8 58.005:00 15:00 47.8 51.3 40.0 56.705:15 15:00 50.5 53.9 42.3 61.805:30 15:00 49.0 52.3 42.8 59.505:45 15:00 48.7 51.8 42.8 60.606:00 15:00 51.2 53.8 46.3 62.906:15 15:00 53.9 54.6 47.3 71.406:30 15:00 55.0 54.5 46.9 75.506:45 15:00 50.4 52.2 46.4 66.9

Average 2300-0700 46.8 44.9 36.9 48-76Average 0700-2300 49.6 50.5 41.9 61-76



Noise Survey ResultsDate: Monday 15th July 2013 TABLE 12


Instrumentation: Cirrus 171A Real Time Analyser (G061253) Calibration due Jan 2014Weather Conditions: Dry, clear skies, temperature 15-21degC, light westerly wind (1-2m/s)Calibration: 94dBStart Time Run Time LAeq LA10 LA90 LAmax Observations


07:00 15:00 51.7 53.4 47.7 68.7 Occasional road traff ic07:15 15:00 52.7 54.2 47.6 71 Occasional road traff ic07:30 15:00 54.9 55.7 50.2 79.6 Occasional road traff ic07:45 15:00 55.0 51.9 46.8 75.608:00 15:00 50.6 56.8 47.9 77.808:15 15:00 52.7 48.4 47.8 74.508:30 15:00 52.2 53.2 47.4 75.808:45 15:00 56.5 58.9 47.2 78.909:00 15:00 48.3 52.4 47.3 77.609:15 15:00 48.2 52.7 48.2 78.909:30 15:00 56.7 59.8 49.1 73.409:45 15:00 52.5 44.7 47.8 73.410:00 15:00 55.4 58.5 47.9 77.610:15 15:00 52.1 51.8 48.1 74.510:30 15:00 55.6 57.7 49.4 69.910:45 15:00 47.8 52.3 48.1 74.811:00 15:00 56.6 59.4 48.0 74.511:15 15:00 53.4 54.9 46.7 72.211:30 15:00 53.3 52.3 48.3 77.611:45 15:00 51.1 51.1 48.6 74.1

Average 0700-1200 53.6 54.0 48.0 69-79



0

10

20

30

40

50

60

70

80

9007

:00

08:1

5

09:3

0

10:4

5

12:0

0

13:1

5

14:3

0

15:4

5

17:0

0

18:1

5

19:3

0

20:4

5

22:0

0

23:1

5

00:3

0

01:4

5

03:0

0

04:1

5

05:3

0

06:4

5

08:0

0

09:1

5

10:3

0

11:4

5

SP

L d

B(A

)

Time

Background Noise Survey - Position 1 (West) Sunday 14th - Monday 15th July 2013

LAeq LA10 LA90 LAmax

0

10

20

30

40

50

60

70

80

90

100

07:0

0

08:1

5

09:3

0

10:4

5

12:0

0

13:1

5

14:3

0

15:4

5

17:0

0

18:1

5

19:3

0

20:4

5

22:0

0

23:1

5

00:3

0

01:4

5

03:0

0

04:1

5

05:3

0

06:4

5

08:0

0

09:1

5

10:3

0

11:4

5

SP

Ld

B(A

)

Time

Background Noise Survey - Position 2 (South East) Sunday 14th - Monday 15th July 2013




0

10

20

30

40

50

60

70

80

9007

:00

08:1

5

09:3

0

10:4

5

12:0

0

13:1

5

14:3

0

15:4

5

17:0

0

18:1

5

19:3

0

20:4

5

22:0

0

23:1

5

00:3

0

01:4

5

03:0

0

04:1

5

05:3

0

06:4

5

08:0

0

09:1

5

10:3

0

11:4

5

SP

Ld

B(A

)

Time

Background Noise Survey - Position 3 (North East) Sunday 14th - Monday 15th July 2013




APPENDIX 4

Typical AD Noise Levels Noise Source Typical Noise Level

LAeq dB

CHP Enclosure 65 @ 10m

Digester/Dewatering Feed Pumps <70 @ 1m

Digester Recirculation Pump 68-70 @ 1m

Mixing Compressor 72 @ 1m

Biofilter Building 70-75 @ 1m

Biofilter Fan Stack (1m end of stack) 70 @ 1m

Flare Plant 70-75 @ 1m

Transfer Pump 68-70 @ 1m

Hot water Pump 72 @ 1m

Reverberant noise level within

reception building (highest likely)

80-85

Mobile Noise Source Typical Noise Level

LAeq dB

HGV 73-75 @ 10m



APPENDIX 5

Construction Plant Inventory

Site Preparation:

Plant Type Sound

Power

Level

%

Operating

Time

Distance Ratio

Excavatator/Loader 108 100 0.8

Lorry 103 10 0.8

General Site Noisy Activities:

Plant Type Sound

Power

Level

%

Operating

Time

Distance

Ratio

JCB 108 100 0.8

Dumper 95 100 0.8

Lorry 103 10 0.8

Compressor (silenced) 98 100 1.0

Generator (silenced) 95 100 1.0

Infrastructure Construction:

Plant Type Sound

Power

Level

%

Operating

Time

Distance

Ratio

Asphalt Melter 103 100 0.8

Asphalt Spreader 110 100 0.8

Road Roller 96 100 0.8

Lorry 103 100 0.8

Concrete activities 92-107 100 0.8

Poker Vibrator 100-112 100 1.0

Water pump 107 100 1.0



Building Construction Activities:

Plant Type Sound

Power

Level

%

Operating

Time

Distance

Ratio

Excavator 106 100 1.0

Steelwork Erection 108 100 1.0

Concrete Pump 103 10 1.0

HGV 103 50 1.0

Concrete vibrators 106 100 1.0

Cutting/Grinding 107 100 1.0

Hydraulic pump 106 100 1.0



APPENDIX 6

Noise Contour Maps



NOISE MAP 1: Daytime Noise Map



NOISE MAP 2: Night-time Noise Map



APPENDIX 7

Consultants Experience & Qualifications



Consultants Experience & Qualifications Dean Robert Kettlewell - MSc MIOA MAE I.Eng (Director – Principal Acoustic Consultant)

Précis

As Director and Principal Acoustic Consultant with Noise & Vibration Consultants Ltd, Dean has over 30 years background experience in a wide range of issues relating to environmental, industrial and commercial noise and vibration assessment. He currently manages corporate and unit specific contracts for: Assessment of Environmental & Industrial Noise Environmental Noise Impact Assessments Integrated Pollution Prevention and Control (IPPC) Applications Industrial Noise Assessment and Control Planning Issues for Residential and Commercial Development Noise at Work Regulations Assessments Building Acoustics and Sound Insulation Tests Wind Farm Noise Impact Assessments Entertainment Noise Assessment and Control Architectural Acoustics Expert Witness representation for Deafness and `Vibration White Finger’ Claims Specialist knowledge in the Design of Noise Control Systems Ground borne vibration measurement and assessment Project Management of Noise Control Systems Hand-arm Vibration Assessments Relevant Work Experience Director & Principal Consultant - Noise & Vibration Consultants Ltd 2001- to date Senior Acoustic Consultant - Vibrock Limited 1998 - 2001 Associate & Principal Acoustic Consultant - John Savidge & Associates 1994 - 1998 Technical Manager – LBJ Limited (Noise Control Division) 1990 - 1994 Technical Engineer/ Technical Manager (1988) - Vibac (Noise Control) Ltd 1982 - 1990 Qualifications and Education M.Sc. Applied Acoustics (Derby University – Distinction) HNC Electrical & Electronic Engineering IOA Diploma in Acoustics & Noise Control IOA Certificate in Law and Administration Certificate of Competence in Workplace Noise Assessment Certificate of Competence in Ground Vibration Monitoring Affiliations: Member of Institute of Acoustics (MIOA) Member of Academy of Experts (MAE) Member of Association of Noise Consultants (ANC)

Incorporated Engineer

NVC Noise &

Vibration Consultants Ltd

noise impact assessment: at - south tynesideplanning.southtyneside.info/mvm.dms/planning...uk coal...

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