appendix 5 noise assessment 77 14/07/2017
Post on 20-Jan-2022
1 Views
Preview:
TRANSCRIPT
Headon Camp Industrial Estate, Headon, Retford, Nottinghamshire.
Planning Statement Appendices.
HC/0738/5
APPENDIX 5
NOISE ASSESSMENT
NC
C R
ecei
ved
14/0
7/20
17
www.wyg.com creative minds safe hands
Waste to Energy Assests Ltd
Proposed Drying/Processing of Wood &
Waste Materials to Provide a Range of
Fuel Products at Headon Camp
Industrial Estate, Retford,
Nottinghamshire
Noise Assessment
July 2017
Executive Park, Avalon Way, Anstey, Leicester, LE7 7GR
Tel: +44 (0)116 234 8000
Email: nigel.mann@wyg.com
NC
C R
ecei
ved
14/0
7/20
17
www.wyg.com creative minds safe hands
Document Control
Project: Proposed Drying/Processing of Wood & Waste Materials to Provide a Range of
Fuel Products at Headon Camp Industrial Estate, Retford, Nottinghamshire
Client: Waste to Energy Assets Ltd
Job Number: A102068
File Origin: O:\Acoustics Air Quality and Noise\Fee Earning Projects\A102068
Document Checking:
Prepared by: Graham Davis AMIOA
Senior Consultant, Environmental Scientist Initials: GD
Contributor: Rebecca Jeffs
Consultant, Environmental Scientist Initials: RJ
Verified by: Nigel Mann MIOA
Director, Environmental Scientist Initials: NM
Issue Date Status
1 26th June 2017 First Issue
2 5th July 2017 Second Issue – Minor Amendments
3
4
NC
C R
ecei
ved
14/0
7/20
17
www.wyg.com creative minds safe hands
Contents Page
1.0 Introduction.................................................................................................................................. 2
2.0 Assessment Criteria ....................................................................................................................... 5
3.0 Assessment Methodology .............................................................................................................. 6
4.0 Noise Survey .............................................................................................................................. 10
5.0 Assessment of Key Effects ........................................................................................................... 13
6.0 Conclusions of Noise Assessment .................................................................................................... 16
Appendix Contents
Appendix A – Acoustic Terminology and Abbreviations
Appendix B – Sketches
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 2 A102068
Headon Camp, Retford July 2017
1.0 Introduction
1.1 Purpose of this Report
This report presents the findings of a noise assessment undertaken for the industrial drying of imported
wood and waste materials to produce various fuel products, including dried, split logs, woodchip and
woodchip briquettes at Headon Camp Industrial Estate, Retford, Nottinghamshire. The plant associated
with the process provides heating to the log and chip drying facility; the following noise sources have been
included within the assessment:
• 132 No. Angus Orlan Super 130 kW housed within the existing northern building
• 9 No. Angus Orlan Super 60 kW housed within the existing northern building
• 21 No. Angus Orlan Super 130 kW housed within the existing southern building
• 2 No. Angus Orlan Super 500 kW housed within the existing southern building
• 1 No. Wood Shredder (based upon AK 510 K)
• 20 No. Heat Exchange Fans and associated ducting
• 3 No. Aggreko Generators
• Waster sorting and screening
• Deliveries of materials
A description of the existing noise environment in and around the site is provided. Noise surveys have
been undertaken and the results used to verify predictions of the short-term and long-term effects of noise.
The noise levels from the proposed development have been predicted based on noise measurements at
local representative receptors using CADNA noise modelling software which incorporates ISO 9613
methodologies and calculations.
A list of acoustic terminology and abbreviations used in this report is provided in Appendix A and sketches
as visual aids to the assessment are presented in Appendix B.
1.2 Legislative Context (England)
This report is intended to provide information relevant to the local planning authority and their consultees
in support of a planning application for the above proposed development. Policy guidance with respect to
noise is found in National Planning Policy Framework (NPPF). With regard to noise and planning, NPPF
contains the following 4 short statements (section 123):
▪ Avoid noise from giving rise to significant adverse impacts on health and quality of life as a
result of new development;
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 3 A102068
Headon Camp, Retford July 2017
▪ Mitigate and reduce to a minimum other adverse impacts on health and quality of life arising
from noise from new development, including through the use of conditions;
▪ Recognise that development will often create some noise and existing businesses wanting to
develop in continuance of their business should not have unreasonable restrictions put on them
because of changes in nearby land uses since they were established; and
▪ Identify and protect areas of tranquillity which have remained relatively undisturbed by noise
and are prized for their recreational and amenity value for this reason.
In support of the NPPF, Planning Practice Guidance (PPG): Noise was launched in March 2014. The overall
aim of this guidance is tying in with the principles of the NPPF and the Explanatory Note of the Noise Policy
Statement for England (NPSE), which states, 'identify whether the overall effect of noise exposure is, or
would be, above or below the significant observed adverse effect level and the lowest observed adverse
effect level for the given situation.’
A summary of the effects of noise exposure associated with both noise generating developments and noise
sensitive developments is presented within the PPG and repeated as follows:
Table 1.1 Noise Exposure Hierarchy
Perception Examples of Outcomes Increasing Effect Level Action
Not noticeable No Effect No Observed Effect No Specific Measures
Required
Noticeable and not intrusive
Noise can be heard, but does not cause any change in behaviour or attitude. Can slightly affect the acoustic character of the area but not such that there is a perceived change in the quality of life.
No Observed Adverse Effect No Specific Measures
Required
Lowest Observed Adverse Effect Level
Noticeable and intrusive
Noise can be heard and causes small changes in behaviour and/or attitude, e.g. turning up volume of television; speaking more loudly; closing windows
for some of the time because of the noise. Potential for non-awakening sleep disturbance. Affects the acoustic character of the area such that there is a
perceived change in the quality of life.
Observed Adverse Effect Mitigate and reduce to
a minimum
Significant Observed Adverse Effect Level
Noticeable and disruptive
The noise causes a material change in behaviour and/or attitude, e.g. having to keep windows closed most of the time, avoiding certain activities during
periods of intrusion. Potential for sleep disturbance resulting in difficulty in getting to sleep, premature awakening and difficulty in getting back to sleep.
Quality of life diminished due to change in acoustic character of the area.
Significant Observed Adverse Effect
Avoid
Noticeable and very disruptive
Extensive and regular changes in behaviour and/or an inability to mitigate effect of noise leading to psychological stress or physiological effects, e.g.
regular sleep deprivation/awakening; loss of appetite, significant, medically definable harm, e.g.
auditory and non-auditory
Unacceptable Observed Adverse Effect
Prevent
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 4 A102068
Headon Camp, Retford July 2017
The NPPF, NPSE and PPG: Noise do not, however, present absolute noise level criteria which define SOAEL,
LOAEL and NOEL which is applicable to all sources of noise in all situations. Therefore, within the context
of the Proposed Development, national planning policy and appropriate guidance documents, including the
‘BS 4142 – ‘Methods for rating and assessing industrial and commercial sound’ (2014), Section 2.0 presents
the noise level criteria used as a basis of this assessment.
The PPG: Noise also states that neither the NPSE nor the NPPF (which reflects the Noise Policy Statement)
expects noise to be considered in isolation, separately from the economic, social and other environmental
dimensions of the proposed development.
1.3 Acoustic Consultants’ Qualifications, Professional Membership
The lead project Acoustic Consultant is Graham Davis. The report has been checked and verified by Nigel
Mann. Relevant qualifications, membership and experience are summarised below.
Name Education
Institute of Acoustics
Post Graduate Diploma in
Acoustic and Noise Control (Pass Date)
Experience in Undertaking Noise
Assessments (Start date of
working in noise & acoustics)
Attained Associate Membership of the
Institute of Acoustics
(date)
Attained Membership of the
Institute of Acoustics
(date)
Rebecca Jeffs
BSc (2016) - May 2016 - -
Graham Davis
BA (2008) Nov 2013 Sep 2011 Jan 2014 -
Nigel Mann Bsc, (1997) Msc (1999)
Nov 2001 Nov 1998 Nov 2001 Jul 2005
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 5 A102068
Headon Camp, Retford July 2017
2.0 Assessment Criteria
In order to enable the assessment of the proposed development in terms of LOAEL and SOAEL, Table 2.1
presents equivalent noise levels and associated actions with the target noise level criteria identified. The
noise level criteria detailed below have been derived from standards and design guidance including:
BS 4142:2014, ‘Methods for rating and assessing industrial and commercial sound’
BS 8233:2014 – ‘Guidance on Sound Insulation and Noise Reduction for Buildings’
Table 2.1 Noise Level Criteria and Actions
Effect Level Noise Level Criteria Action / Justification
No Observed Adverse Effect
Noise Rating Level (LAeq,T) is 10 dB below background noise level (LA90,T)
Action: None
Justification: BS 4142 (2014) indication of low impact
Internal noise levels below (with windows open):
Bedrooms (night-time) – 30 dBLAeq,8hours
Living Rooms (daytime) – 35 dBLAeq,16hours
Action: None Justification: Within BS 8233 criteria
Lowest Observed Adverse Effect Level
(LOAEL)
Noise Rating Level (LAeq,T) between 0 – 5 dB above the
background noise level (LA90,T). LOAEL is equivalent to
background noise level.
Action: None Justification: BS 4142 (2014) indication of low impact, depending on the context in which it
occurs.
Internal noise levels achieve (with windows open):
Bedrooms (night-time) – 30 dBLAeq,8hours
Living Rooms (daytime) – 35 dBLAeq,16hours
Action: None Justification: Within BS 8233 criteria
Significant Observed Adverse Effect Level
(SOAEL)
Noise Rating Level (LAeq,T) 10 dB or greater above the background noise level (LA90,T).
Action: Reduce as far as practicable depending
on context
Justification: BS 4142 (2014) indication of an adverse impact depending on the context in
which it occurs.
Internal noise levels exceed (with windows closed):
Bedrooms (night-time) – 30 dBLAeq,8hours
Living Rooms (daytime) – 35 dBLAeq,16hours
Action: Mitigate Justification: Exceeds BS 8233 criteria
Unacceptable Observed Adverse
Effect Level (UOAEL)
Noise Rating Level (LAeq,T) 15 dB or greater above the background noise level (LA90,T).
Action: Reduce as far as practicable depending
on context
Justification: BS 4142 (2014) indication of significant adverse impact is 10 dB above
background depending on the context in which it occurs.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 6 A102068
Headon Camp, Retford July 2017
3.0 Assessment Methodology
3.1 Noise Modelling Methodology
Three-dimensional noise modelling was undertaken which was based on the monitoring data to predict
source noise levels at a large number of locations both horizontally and vertically. CADNA noise modelling
software has been used. This model is based on ISO 9613 noise propagation methodology. The modelling
software calculates noise levels based on the emission parameters and spatial settings that are entered.
Input data, assumptions and model settings as given in the table below have been used.
Table 3.1 Modelling Parameters Sources and Assumptions
Parameter Source Details
Horizontal distances – around site
Ordnance Survey Ordnance Survey
Ground levels Site Observations and Ordnance Survey
OS panorama contours.
Building heights – around site WYG Observations 8 m height for two storey properties and 4 m for one storey
Barrier heights WYG Observations None included within model.
Receptor positions WYG 1 m from façade, height of 1.5m (day) and 4 m (Night). 4 m height for model grid.
Absorbent Ground CADNA Frequency dependant ground absorption has been applied based on values specified in VDI 2714/16 clause 6.3.
Proposed Plans Hughes Craven Drawing Name: Site Layout. Drawing No. 0738-5-8. Revision: F Date: 28/06/2017
It is acknowledged that a number of these assumptions will affect the overall noise levels presented in this
report. However, it should be noted that certain assumptions made, as identified above, are worst case.
3.2 Model Input Data
3.2.1 Internal Plant Noise Data
In order to represent noise from internally located boilers, reverberant noise levels have been calculated
using the following manufacturer’s data:
Northern Building
• 132 No. Angus Orlan Super 130 kW housed within the existing building - 60 dBA at 1m
• 9 No. Angus Orlan Super 60 kW housed within the existing building - 60 dBA at 1m
Southern Building
• 21 No. Angus Orlan Super 130 kW housed within the existing building - 60 dBA at 1m
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 7 A102068
Headon Camp, Retford July 2017
• 2 No. Angus Orlan Super 60 kW housed within the existing building - 60 dBA at 1m
Vertical area sources have been defined in the model to represent noise break-out from within the
processing areas. The acoustic performance of the housing of the boilers and processing areas is not
known, however a conservative reduction of Rw 20 dB has been included within the model to account for
the single-skin enclosure and acoustic weaknesses such as vents and door seals. For the purposes of this
worst-case assessment, all sources are considered to be operating at full capacity at all times.
Table 3.2 Northern Building: Processing Areas Noise Input Data
BSP Unit Ecoangus Wood Burners (130 kw) Ecoangus Wood Burners (60 kw)
Length 86.0 86.0
Width 33.0 33.0
Height 8.0 8.0
RT 4.8 4.8
r distance from source to nearest internal facade
5.0 5.0
Q Directivity 4.0 4.0
Lw 65.0 65.0
Volume of Space 22704.0 22704.0
Surface Areas 7580.0 7580.0
A Total Absorption 758.0 758.0
Alpha bar 0.1 0.1
Rc Room Constant 842.2 842.2
SPL 47.0 47.0
Calculated Reverberant SPL Based on Number of Sources
68.1 57.4
Total Internal Reverberant Noise Level 68.7 dBA
Table 3.3 Southern Building: Processing Areas Noise Input Data
BSP Unit Ecoangus Wood Burners (130 kw) Ecoangus Wood Burners (500 kw)
Length 86.0 86.0
Width 33.0 33.0
Height 8.0 8.0
RT 4.8 4.8
r distance from source to nearest internal facade
5.0 5.0
Q Directivity 4.0 4.0
Lw 65.0 65.0
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 8 A102068
Headon Camp, Retford July 2017
BSP Unit Ecoangus Wood Burners (130 kw) Ecoangus Wood Burners (500 kw)
Volume of Space 22704.0 22704.0
Surface Areas 7580.0 7580.0
A Total Absorption 758.0 758.0
Alpha bar 0.1 0.1
Rc Room Constant 842.2 842.2
SPL 47.0 47.0
Calculated Reverberant SPL Based on Number of Sources
60.2 50.0
Total Internal Reverberant Noise Level 60.6 dBA
3.2.2 External Plant Noise Data
The following model input data has been used to represent externally located items of plant, including
generators and heat exchanger fans.
Table 3.4 External Plant Noise Data
Description
Octave Band Centre Frequency (Hz) Single Figure (dBA) @1m
31.5 63 125 250 500 1000 2000 4000 8000
Aggreko Silent
Generator 84.7 77.9 81.6 73.5 70.3 67.6 62.7 54.8 49.8 73.3
Heat Exchanger
Fan 99.4 91.2 83.5 74.6 72.8 63.7 58.4 55.9 49.8 73.6
Shredder & Screening Equipment
70.4 69.6 66.8 67.7 69.3 60.5 57.6 51.8 41.1 70.6
@10m
3.2.3 Delivery Noise Data
The following model input data has been used to represent HGVs delivering materials to the site, noise
from vehicle arrivals and departures have been modelled as a line source along the site access road, whilst
noise from the unloading process has been modelled adjacent to the waste wood sorting and screening
area as a point source.
LAeq,1hr Noise Level:
1 Minute Lp 72.7 dB (Vehicle Unloading)
= 54.9 dB at 3 m distance (Point Source)
= 50.1 dB at 3m distance (Line Source; 2 No. Vehicle Pass-bys)
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 9 A102068
Headon Camp, Retford July 2017
3.3 Sensitive Receptors
Table 3.3 below summarises receptor locations that have been selected to represent worst-case residential
receptors with respect to direct noise from the site. Ground and first floor facades (adjacent and facing the
proposed development) of nearest properties have been represented. The locations of the receptors are
shown on SK02 in Appendix B.
Table 3.5 Existing Receptor Locations
Ref. Description Approximate
Distance to Source (m)
Height (m)
R1 Damson Croft, Ladywell Rise 16 1.5
R2 Cae Coch, Headon 80 1.5
R3 Ladywell Bungalow, Ladywell Rise 109 1.5
R4 Bottom Woodbeck Farm, Grove Road 926 4.0
R5 Hillcrest, Headon 815 4.0
R6 Mill Hill Farm, Headon 366 4.0
R7 Brickyard Farm, Greenspotts Lane 299 4.0
3.4 Tranquillity Rating
An assessment of the existing tranquillity level of the site has been based on the mapping data published
by Campaign to Protect Rural England (CPRE). This uses a colour coded system and a 500m assessment
grid for the whole of England, and a tranquillity rating of between 1 and 10 is assigned (1 being least
tranquil and 10 being most). By reference to these maps the development is assessed as falling into
Zone 5.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 10 A102068
Headon Camp, Retford July 2017
4.0 Noise Survey
4.1 Noise Survey Methodology
A monitoring survey was undertaken to characterise baseline ambient noise levels currently experienced on
the site and to establish the relative local background and traffic noise levels. Equipment used during the
survey included:
Rion NL-52 Environmental Noise Analyser (WYG15) s/n 620858
Rion NL-52 Environmental Noise Analyser (WYG20) s/n 253702
Rion NC-74 Sound Calibrator s/n 35046823
The measurement equipment was checked against the appropriate calibrator at the beginning and end of
the measurements, in accordance with recommended practice and no drift was observed. The accuracy of
the calibrators can be traced to National Physical Laboratory Standards, calibration certificates for which
are available on request.
A baseline monitoring survey was undertaken at six locations (as specified in the following table and shown
in SK01 of Appendix B) from Friday 3rd February 2017 to Wednesday 8th February 2017. Attended short
term measurements were undertaken at five locations during the day, evening and night-time periods with
one additional location being measured unattended over a 121 hour period. The raw data collected from
the long term monitoring is available upon request.
Measurements were taken in general accordance with BS 7445-1:2003 The Description and Measurement
of Environmental Noise: Guide to quantities and procedures.
Table 4.1 Noise Monitoring Locations
Ref Description
LT1 West of Damson Croft by Industrial estate entrance road
ST1 West of Ladywell Bungalow
ST2 North of Bottom Woodbeck Farm
ST3 West of Brickyard Farm
ST4 East of Greenspotts Lane
ST5 On public footpath north of Hillcrest
4.2 Noise Survey Results
Existing ambient noise levels around the site are dominated by road traffic noise on Lady Well Lane,
Hazelwood Lane and Greenspotts Lane.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 11 A102068
Headon Camp, Retford July 2017
Ambient and background noise levels are usually described using the LAeq index (a form of energy average)
and the LA90 index (i.e. the level exceeded for 90% of the measurement period) respectively. Road traffic
noise is generally described using the LA10 index (i.e. the level exceeded for 10% of the measurement
period).
Table 4.2. Meteorological Conditions during the Survey
Survey Location/
Date & Time Temperature Wind Speed
Wind Direction
Cloud Cover
(Oktas) Dominant Noise Source
Day ST1 08/02/2017
12:39 4.0 ºC 0-2 m/s NE 6
Road traffic noise on Lady Well Lane, bird scarers in field, distant drilling from site.
Day ST2 08/02/2017
09:53 4.0 ºC 0-2 m/s NE 7
Road traffic noise on Hazelwood Lane, birds.
Day ST3 08/02/2017
11:44 4.0 ºC 0-2 m/s NE 6
Road traffic noise on Lady Well Lane.
Day ST4 08/02/2017
10:39 4.0 ºC 0-1 m/s NE 7
Occasional car passes on Greenspotts Lane, occasional
distant traffic noise, birds, distant bangs.
Day ST5 08/02/2017
10:17 4.0 ºC 0-1 m/s NE 7
Occasional distant road traffic noise, birds.
Evening ST1 07/02/2017
21:55 3.0 ºC 0-1 m/s NE 7
Road traffic noise on Lady Well Lane, occasional car enters
industrial estate.
Evening ST2 07/02/2017
20:38 3.0 ºC 0-1 m/s NE 7
Road traffic noise Hazelwood Lane, aircraft, wildlife.
Evening ST3 07/02/2017
22:40 3.0 ºC 0-1 m/s NE 7
Road traffic noise on Lady Well Lane.
Evening ST4 07/02/2017
21:26 3.0 ºC 0-1 m/s NE 7
Occasional distant road traffic noise, wildlife, airplanes.
Evening ST5 07/02/2017
21:05 3.0 ºC 0-1 m/s NE 7
Occasional distant road traffic noise, wildlife.
Night ST1 07/02/2017
23:25 3.0 ºC 0-1 m/s NE 7
Occasional car pass on Lady Well Lane.
Night ST2 07/02/2017
23:04 3.0 ºC 0-1 m/s NE 7
Occasional car pass on Hazelwood Lane, wildlife.
Night ST3 08/02/2017
00:26 3.0 ºC 0-1 m/s NE 7
Occasional distant road traffic noise, wildlife.
Night ST4 08/02/2017
00:06 3.0 ºC 0-1 m/s NE 7
Occasional distant road traffic noise, wildlife.
Night ST5 07/02/2017
23:47 3.0 ºC 0-1 m/s NE 7
Occasional distant road traffic noise, wildlife.
The results of the statistical measurements and frequency measurements conducted during the survey are
summarised in the following table. All values are sound pressure levels in dB (re: 2 x 10-5 Pa). For the long-
term (LT) location, the presented LAeq,T and LA10,T are average noise levels whilst the LA90 is the modal noise
level of each 5 minute measurement over the stated survey period.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 12 A102068
Headon Camp, Retford July 2017
Table 4.3 Results of Baseline Noise Monitoring Survey
Period Duration
(T) Monitoring Date and Times Location
LAeq,T (dB)
LAmax,T (dB)
LAmin,T (dB)
LA10,T (dB)
LA90,T (dB)
Weekday Daytime
07:00 - 23:00 49 Hours
03/02/2017 – 08/02/2017 07:00 - 23:00
LT1
56.7 84.9 21.4 57.4 39.0
Weekday Night-time
23:00 – 07:00 24 Hours
03/02/2017 – 08/02/2017 23:00 - 07:00
47.1 79.2 18.1 37.1 23.0
Weekday Daytime
07:00 - 23:00 32 Hours
03/02/2017 – 08/02/2017 07:00 - 23:00
55.4 93.4 19.7 53.7 39.0
Weekday Night-time
23:00 – 07:00 16 Hours
03/02/2017 – 08/02/2017 23:00 - 07:00
47.0 79.8 20.6 39.9 29.0
Daytime 07:00 - 19:00
15 Mins 08/02/2017 12:39 ST1 65.3 82.1 26.1 68.2 32.4
15 Mins 08/02/2017 09:53 ST2 61.6 80.9 29.2 60.0 34.1
15 Mins 08/02/2017 11:44 ST3 56.8 81.9 27.0 60.0 30.1
15 Mins 08/02/2017 10:39 ST4 56.2 81.1 30.4 47.6 36.7
15 Mins 08/02/2017 10:17 ST5 38.2 58.9 28.7 40.6 33.6
Evening 19:00 - 23:00
15 Mins 07/02/2017 21:55 ST1 60.7 83.4 24.1 58.7 26.1
15 Mins 07/02/2017 20:38 ST2 61.8 78.6 26.1 62.2 34.8
15 Mins 07/02/2017 22:40 ST3 51.8 70.5 25.0 52.1 26.4
15 Mins 07/02/201721:26 ST4 49.5 84.8 29.9 44.1 34.0
15 Mins 07/02/2017 21:05 ST5 39.6 52.3 24.3 43.1 30.1
Night-time 23:00 - 07:00
15 Mins 07/02/2017 23:25 ST1 51.1 75.1 21.5 39.3 22.6
15 Mins 07/02/2017 23:04 ST2 29.0 58.0 23.7 29.9 25.6
15 Mins 08/02/2017 00:26 ST3 43.4 68.5 22.5 29.7 23.7
15 Mins 08/02/2017 00:06 ST4 31.0 53.8 17.5 31.7 19.6
15 Mins 07/02/2017 23:47 ST5 28.1 52.2 19.1 30.4 22.1
All values are sound pressure levels in dB re: 2x 10-5 Pa
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 13 A102068
Headon Camp, Retford July 2017
5.0 Assessment of Key Effects
5.1 Noise Intrusion Assessment
Internal LAeq noise levels, at nearby sensitive receptors from the site have been assessed both with
windows open, where a reduction from a partially open window of 15 dB has been used, and with windows
closed where an assumption of single glazing with a sound reduction of 30 dB has been used. For the
purposes of this worst-case assessment, deliveries and sorting and screening and all plant are considered
to be operational during the daytime, during the night time period it is understood that only the drying
plant will be fully operational (i.e. no deliveries or use of sorting plant).
Table 5.1 Noise Intrusion Levels Daytime LAeq,T
Location External Façade LAeq
at a 1m Distance
Internal LAeq with windows open
Internal LAeq with windows closed
Criteria Internal LAeq
Daytime/Night-time
R1 41.2 31.2 11.2 35
R2 33.6 23.6 3.6 35
R3 32.5 22.5 2.5 35
R4 19.0 9.0 0.0 35
R5 24.8 14.8 0.0 35
R6 37.3 27.3 7.3 35
R7 26.7 16.7 0.0 35
All values are sound pressure levels in dB re: 2x 10-5 Pa.
Table 5.2 Noise Intrusion Levels Night-time LAeq,T
Location External Façade LAeq
at a 1m Distance
Internal LAeq with windows open
Internal LAeq with windows closed
Criteria Internal LAeq
Daytime/Night-time
R1 29.9 19.9 0.0 30
R2 30.3 20.3 0.3 30
R3 27.0 17.0 0.0 30
R4 15.8 5.8 0.0 30
R5 17.3 7.3 0.0 30
R6 28.1 18.1 0.0 30
R7 24.1 14.1 0.0 30
All values are sound pressure levels in dB re: 2x 10-5 Pa.
The assessment presented in the table above shows that worst-case internal LAeq noise levels from the
proposed site are predicted to be below the BS 8233 noise intrusion criteria and therefore below the
Lowest Observed Adverse Effect Level at all existing residential receptors with windows open or closed
during both daytime and night-time periods.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 14 A102068
Headon Camp, Retford July 2017
5.2 BS 4142 Noise Assessment
The assessment compares the predicted noise levels from the facility with the existing measured
background noise LA90 at the surrounding existing residential receptors. The representative existing
measured background noise level for each receptor has been established from a statistical analysis of the
long-term noise survey data and a review of the short-term noise survey data.
Table 5.3 below presents the difference between the background noise level and noise rating level
associated with the proposed plant. Given the very low absolute noise levels, in line with the guidance
provided within with BS 4142, of +2 dB has been included to account for tonal elements of the noise
associated with the plant which may be just perceptible at the surrounding receptor locations. For the
purposes of this worst-case assessment, the plant is considered to be operating at full capacity during both
the daytime and night-time periods.
Table 5.3 Noise Assessment for Proposed Plant
Ref
Measured Average Pre-Installation Background
LA90 Predicted Noise Level LAeq Noise Rating Level BS 4142 Score
Daytime Night-time Daytime Night-time Daytime Night-time Daytime Night-time
R1 39 23 41 30 43 32 4 9
R2 32 23 34 30 36 32 4 9
R3 32 23 33 27 35 29 3 6
R4 34 24 19 16 21 18 -13 -6
R5 34 22 25 17 27 19 -7 -3
R6 37 24 37 28 39 30 3 6
R7 37 24 27 24 29 26 -8 2
All values are sound pressure levels in dBA re: 2x 10-5 Pa.
All calculations used to derive the above table (including averaging of background noise levels and predicted source noise levels) have
been undertaken to 1 decimal place to avoid perpetuation of rounding errors. However, in accordance with BS4142 para 8.6 the
levels are expressed as integers (with 0.5 dB being rounded up). This may mean that the arithmetics in the above table may appear
to be up to 1 dB incorrect due to this rounding.
As presented in Table 5.3, worst-case noise rating levels are predicted to be no more than 4 dB above
background levels at all selected sensitive receptors during daytime periods and is therefore expected to
have a low impact. During the night-time period noise from the proposed plant is expected to be above
background noise levels at surrounding receptor locations, however it should be noted that as BS 4142
considers noise levels externally, greater emphasis should be given to the noise intrusion assessment in
section 5.1 above which demonstrates that noise levels within nearby dwellings are predicted to be very
low and are expected to be well within the relevant noise intrusion criteria (that relate to sleep disturbance
and internal resting conditions). Therefore noise from the site is expected to have a low impact.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 15 A102068
Headon Camp, Retford July 2017
5.3 Tranquillity Assessment
An assessment of the existing tranquillity level of the site has been based on the mapping data published
by Campaign to Protect Rural England (CPRE). This uses a colour coded system and a 500m assessment
grid for the whole of England, and a tranquillity rating of between 1 and 10 is assigned (1 being least
tranquil and 10 being most). By reference to these maps the development is assessed as falling into Zone 5
and is of some tranquillity value. The site is located within an existing industrial estate and there are no
public rights of way within the site itself with the nearest public footpaths and access routes located to the
west of the development site. As the proposed development will not disrupt current public rights of way
and is located on the site of an existing commercial premises, the development is considered to have a
negligible effect on local access to areas of greater tranquillity.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd 16 A102068
Headon Camp, Retford July 2017
6.0 Conclusions of Noise Assessment
This report presents the findings of a noise assessment for the industrial drying of imported wood and
waste materials to produce various fuel products, including dried, split logs, woodchip and woodchip
briquettes at Headon Camp Industrial Estate, Retford. Section 123 of the NPPF gives four test points
against which the proposed development has been assessed. Considering each of these points, the
following conclusions can be drawn:
NPPF 123 A & B
In considering the NPPF test in section 123, points A & B, as it has been demonstrated that the BS 8233
criteria will be achieved at the closest receptors during both daytime and night-time periods with windows
open or closed when the plant will be in operation. Therefore, the proposals will not have a ‘significant
adverse impact’ on health or quality of life.
NPPF 123 C & D
No nearby business will have unreasonable restrictions put on them as a result of the proposals. In
addition, it is considered that the continued use of the site for industrial purposes will have a negligible
effect on the tranquillity of the area or local access to areas of greater tranquillity.
Planning Practice Guidance: Noise
Based on the assessment undertaken predicted noise levels even when the plant is operating at full
capacity at existing receptors are predicted to fall below the Significant Observed Adverse Effect Level
(SOAEL).
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd A102068
Headon Camp, Retford July 2017
Appendices
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd A102068
Headon Camp, Retford July 2017
Appendix A – Acoustic Terminology and Abbreviations
An explanation of the specific acoustic terminology referred to within this report is provided below.
dB Sound levels from any source can be measured in frequency bands in order to provide detailed
information about the spectral content of the noise, i.e. whether it is high-pitched, low-pitched, or
with no distinct tonal character. These measurements are usually undertaken in octave or third
octave frequency bands. If these values are summed logarithmically, a single dB figure is
obtained. This is usually not very helpful as it simply describes the total amount of acoustic
energy measured and does not take any account of the ear’s ability to hear certain frequencies
more readily than others.
dB(A) Instead, the dBA figure is used, as this is found to relate better to the loudness of the sound
heard. The dBA figure is obtained by subtracting an appropriate correction, which represents the
variation in the ear’s ability to hear different frequencies, from the individual octave or third
octave band values, before summing them logarithmically. As a result the single dBA value
provides a good representation of how loud a sound is.
LAeq Since almost all sounds vary or fluctuate with time it is helpful, instead of having an
instantaneous value to describe the noise event, to have an average of the total acoustic energy
experienced over its duration. The LAeq, 07:00 – 23:00 for example, describes the equivalent
continuous noise level over the 12 hour period between 7 am and 11 pm. During this time period
the LpA at any particular time is likely to have been either greater or lower that the LAeq, 07:00 – 23:00.
LAmin The LAmin is the quietest instantaneous noise level. This is usually the quietest 125 milliseconds
measured during any given period of time.
LAmax The LAmax is the loudest instantaneous noise level. This is usually the loudest 125 milliseconds
measured during any given period of time.
Ln Another method of describing, with a single value, a noise level which varies over a given time
period is, instead of considering the average amount of acoustic energy, to consider the length of
time for which a particular noise level is exceeded. If a level of x dBA is exceeded for say. 6
minutes within one hour, then that level can be described as being exceeded for 10% of the total
measurement period. This is denoted as the LA10, 1 hr = x dB.
The LA10 index is often used in the description of road traffic noise, whilst the LA90, the noise level
exceeded for 90% of the measurement period, is the usual descriptor for underlying background
noise. LA1 and LAmax are common descriptors of construction noise.
Rw The weighted sound reduction index determined using the above measurement procedure, but
weighted in accordance with the procedures set down in BS EN ISO 717-1. Partitioning and
building board manufacturers commonly use this index to describe the inherent sound insulation
performance of their products.
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd A102068
Headon Camp, Retford July 2017
An explanation of abbreviations used within this report is provided below.
CADNA – Computer Aided Noise Abatement
DMRB – Design Manual for Roads and Bridges
HGV – Heavy Goods Vehicle
UDP – Unitary Development Plan
UKAS – United Kingdom Accreditation Service
WYGE – WYG Environment
NC
C R
ecei
ved
14/0
7/20
17
Noise Assessment
Waste to Energy Assets Ltd A102068
Headon Camp, Retford July 2017
Appendix B – Sketches
SK01 Noise Monitoring Locations
SK02 Receptor Locations
SK03 Worst-case Daytime LAeq Noise Levels
SK04 Worst-case Night-time LAeq Noise Levels
NC
C R
ecei
ved
14/0
7/20
17
LT1ST1
ST2
ST3
ST4
ST5
ST6Ladywell Lane
474100
474100
474200
474200
474300
474300
474400
474400
474500
474500
474600
474600
474700
474700
474800
474800
474900
474900
475000
475000
475100
475100
475200
475200
475300
475300
475400
475400
475500
475500
475600
475600
475700
475700
475800
475800
475900
475900
476000
4760003
76
90
0
37
69
00
37
70
00
37
70
00
37
71
00
37
71
00
37
72
00
37
72
00
37
73
00
37
73
00
37
74
00
37
74
00
37
75
00
37
75
00
37
76
00
37
76
00
37
77
00
37
77
00
37
78
00
37
78
00
37
79
00
37
79
00
37
80
00
37
80
00
37
81
00
37
81
00
37
82
00
37
82
00
37
83
00
37
83
00
Client:
Waste to EnergyAssets Ltd
Project:
Headon Camp, Retford
Drawing Title / Scenario:
Noise Monitoring Locations
Drawing Number:
SK01
Key:
Scale : Not to scale
WYGE Leicester 29.06.17
This map is based upon Ordnance Survey material reproducedby WYG on behalf of Her Majesty's Stationery Office, © Crown Copyright. Unauthorised reproduction infringesCrown copyright and may lead to civil proceedings.
Licence Number AL 553611
Executive ParkAvalon WayAnsteyLeicestershireLE7 7GRTel 0116 234 8000
© WYG Environment
NC
C R
ecei
ved
14/0
7/20
17
R1
R3
R2
R4
R5
R6
R7
474100
474100
474200
474200
474300
474300
474400
474400
474500
474500
474600
474600
474700
474700
474800
474800
474900
474900
475000
475000
475100
475100
475200
475200
475300
475300
475400
475400
475500
475500
475600
475600
475700
475700
475800
475800
475900
475900
476000
4760003
76
90
0
37
69
00
37
70
00
37
70
00
37
71
00
37
71
00
37
72
00
37
72
00
37
73
00
37
73
00
37
74
00
37
74
00
37
75
00
37
75
00
37
76
00
37
76
00
37
77
00
37
77
00
37
78
00
37
78
00
37
79
00
37
79
00
37
80
00
37
80
00
37
81
00
37
81
00
37
82
00
37
82
00
37
83
00
37
83
00
Client:
Waste to EnergyAssets Ltd
Project:
Headon Camp, Retford
Drawing Title / Scenario:
Sensitive ReceptorLocation
Drawing Number:
SK02
Key:
Scale : Not to scale
WYGE Leicester 29.06.17
This map is based upon Ordnance Survey material reproducedby WYG on behalf of Her Majesty's Stationery Office, © Crown Copyright. Unauthorised reproduction infringesCrown copyright and may lead to civil proceedings.
Licence Number AL 553611
Executive ParkAvalon WayAnsteyLeicestershireLE7 7GRTel 0116 234 8000
© WYG Environment
NC
C R
ecei
ved
14/0
7/20
17
474900
474900
474920
474920
474940
474940
474960
474960
474980
474980
475000
475000
475020
475020
475040
475040
475060
475060
475080
475080
475100
475100
475120
475120
475140
475140
475160
475160
475180
475180
475200
475200
475220
475220
475240
475240
475260
4752603
77
94
0
37
79
40
37
79
60
37
79
60
37
79
80
37
79
80
37
80
00
37
80
00
37
80
20
37
80
20
37
80
40
37
80
40
37
80
60
37
80
60
37
80
80
37
80
80
37
81
00
37
81
00
37
81
20
37
81
20
37
81
40
37
81
40
37
81
60
37
81
60
37
81
80
37
81
80
37
82
00
37
82
00
37
82
20
37
82
20
37
82
40
37
82
40
Client:
Waste to EnergyAssets Ltd
Project:
Headon Camp, Retford
Drawing Title / Scenario:
Worst-Case DaytimeLAeq Noise Levels
Drawing Number:
SK03
Key:
0.0 - 50.0 dB 50.0 - 55.0 dB 55.0 - 60.0 dB >60.0 dB
Scale : Not to scale
WYGE Leicester 29.06.17
This map is based upon Ordnance Survey material reproducedby WYG on behalf of Her Majesty's Stationery Office, © Crown Copyright. Unauthorised reproduction infringesCrown copyright and may lead to civil proceedings.
Licence Number AL 553611
Executive ParkAvalon WayAnsteyLeicestershireLE7 7GRTel 0116 234 8000
© WYG Environment
NC
C R
ecei
ved
14/0
7/20
17
474900
474900
474920
474920
474940
474940
474960
474960
474980
474980
475000
475000
475020
475020
475040
475040
475060
475060
475080
475080
475100
475100
475120
475120
475140
475140
475160
475160
475180
475180
475200
475200
475220
475220
475240
475240
475260
4752603
77
94
0
37
79
40
37
79
60
37
79
60
37
79
80
37
79
80
37
80
00
37
80
00
37
80
20
37
80
20
37
80
40
37
80
40
37
80
60
37
80
60
37
80
80
37
80
80
37
81
00
37
81
00
37
81
20
37
81
20
37
81
40
37
81
40
37
81
60
37
81
60
37
81
80
37
81
80
37
82
00
37
82
00
37
82
20
37
82
20
37
82
40
37
82
40
Client:
Waste to EnergyAssets Ltd
Project:
Headon Camp, Retford
Drawing Title / Scenario:
Worst-Case Night-time LAeq Noise Levels
Drawing Number:
SK04
Key:
0.0 - 50.0 dB 50.0 - 55.0 dB 55.0 - 60.0 dB >60.0 dB
Scale : Not to scale
WYGE Leicester 29.06.17
This map is based upon Ordnance Survey material reproducedby WYG on behalf of Her Majesty's Stationery Office, © Crown Copyright. Unauthorised reproduction infringesCrown copyright and may lead to civil proceedings.
Licence Number AL 553611
Executive ParkAvalon WayAnsteyLeicestershireLE7 7GRTel 0116 234 8000
© WYG Environment
NC
C R
ecei
ved
14/0
7/20
17
top related