Noise Impact Assessment · development to adverse effects from pollution, should be considered. The national planning policy framework states that planning policies and decisions

Nell Lane, Manchester Noise Impact Assessment June 2019

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Report: Noise Impact Assessment Ref: 50-017-R1-3 Date: 12th August 2019

Proposed Extension to Great Billing Waste Recycling Facility, Northamptonshire

Noise Impact Assessment August 2019

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NOISE IMPACT ASSESSMENT

Extension to Great Billing Waste Recycling Facility

Northamptonshire

Prepared for:

Report Ref: 50-016-R1-3

Date Issued: 12th August 2019



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E3P Heliport Business Park Liverpool Road Eccles Manchester M30 7RU + 44 (0) 161 707 9612 https://e3p.co.uk Registered in England CRN: 807255262

QUALITY ASSURANCE

PROJECT NUMBER 50-016

VERSION Version 1 Version 2 Version 3

REMARKS Draft for Comment Final Final

DATE 27th June 2019 9th August 2019 12th August 2019

PREPARED BY L Faulkner L Faulkner L Faulkner

QUALIFICATIONS BSc (Hons), PGDip, MIOA BSc (Hons), PGDip, MIOA

BSc (Hons), PGDip, MIOA

SIGNATURE

CHECKED BY A Edgar A Edgar A Edgar

QUALIFICATIONS BSc, MSc, PIEMA, MIEnvSc, CEnv

BSc, MSc, PIEMA, MIEnvSc, CEnv

BSc, MSc, PIEMA, MIEnvSc, CEnv

SIGNATURE

AUTHORISED BY L Faulkner L Faulkner L Faulkner

QUALIFICATIONS BSc (Hons), PGDip, MIOA BSc (Hons), PGDip, MIOA

BSc (Hons), PGDip, MIOA

SIGNATURE

https://e3p.co.uk/

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Rectangle

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EXECUTIVE SUMMARY

BACKGROUND

Site Address Lower Ecton Lane, Great Billing

National Grid Reference E 482112 N 262246

Proposed Development

Extension to existing Waste Recycling Facility at Great Billing in order that the site can process and recycle a greater proportion of waste arising within the region and incorporate a contaminated soil washing facility. The layout of the existing site will be revised to allow for greater efficiency of the recycling operations. The extension area will consist of a dedicated waste skip and HGV parking area in the extreme eastern sector. In addition, a smaller area (measuring 2,000sq.m) to the south of Lower Ecton Lane is proposed as a car parking area.

Report Objectives

The objectives of this report are to:

Identify, measure and assess the potential impact of any noise sources associated with the proposed extension, as well as existing sources, and to consider the cumulative impact of existing and proposed operations impacting upon existing residential receptors.

The report follows current and relevant British Standards in order to provide a robust assessment.

ASSESSMENT

Surveys Completed

Attended source noise measurements have been undertaken at the existing Great Billing Site in order to inform the assessment. Furthermore, an unattended background sound survey has been undertaken in the north east area of the proposed extension over a full weekday and weekend period.

Assessments

Detailed calculations have been undertaken to assess cumulative noise levels resulting from various operations and plant items, existing and proposed, at the closest receptors to the west along Lower Ecton Lane. These levels have been used to predict the Rating Level at the receptors which has been compared with the typical background sound level, accounting for any acoustic characteristics associated with the sound in accordance with BS 4142:2014.

Mitigation Requirements The assessment determined that the rating level would fall below the background sound level during daytime, evening and night-time periods. As such, no mitigation measures are required.

CONCLUSIONS

The assessment has shown that no adverse impact is predicted day, evening or night at the receptors to the west on Lower Ecton Lane. As such, noise need not be a material consideration in the granting of planning permission.



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TABLE OF CONTENTS

EXECUTIVE SUMMARY ..................................................................................................................... 2 Background ............................................................................................................................................... 2 Assessment ............................................................................................................................................... 2 Conclusions ............................................................................................................................................... 2

1. INTRODUCTION ........................................................................................................................ 4 1.1. Background .................................................................................................................................. 4 1.2. Proposed Development ............................................................................................................... 4 1.3. Limitations ................................................................................................................................... 4

2. ASSESSMENT METHODOLOGY ................................................................................................ 5 2.1. National Planning Policy Framework ......................................................................................... 5 2.2. National Planning Practice Guidance ......................................................................................... 5 2.3. BS4142: 2014 ‘Methods for rating and assessing industrial and commercial sound’ ............ 7

3. SURVEY RESULTS ..................................................................................................................... 9 3.1. Unattended Background Sound Survey ...................................................................................... 9 3.2. Attended Source Sound Measurements .................................................................................... 9

4. NOISE IMPACT ASSESSMENT ................................................................................................ 12 4.1. Weekday Daytime – All Operations ..........................................................................................14 4.2. Weekday Evening – No Crushing, Baling or Concrete Batching Plant ...................................17 4.3. Weekday Night – No Crushing, Baling or Concrete Batching Plant .......................................19 4.4. Weekend Daytime – No Crushing, Baling or Concrete Batching Plant ..................................20 4.5. BS 4142:2014 Summary of Results ..........................................................................................23

5. MITIGATION ........................................................................................................................... 24

6. CONCLUSION AND RECOMMENDATIONS ............................................................................... 25

APPENDIX I GLOSSARY OF ACOUSTIC TERMINOLOGY ................................................................... 26

APPENDIX II FIGURES ..................................................................................................................... 29

APPENDIX III MEASURED SOUND PRESSURE LEVELS ..................................................................... 31



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1. INTRODUCTION

1.1. BACKGROUND

E3P were commissioned by Mick George Limited to undertake a Noise Impact Assessment for the proposed extension to the existing Waste Recycling Facility (WRF) at Great Billing, to be referred to hereafter as ‘the Site’. This assessment looks to determine the key noise sources associated with the Site and to assess their impact, if any, upon existing or proposed residential receptors in the vicinity of the Site and to specify mitigation measures, where required.

1.2. PROPOSED DEVELOPMENT

Mick George Limited intend to extend the existing WRF in order that the site can process and recycle a greater proportion of waste arising within the region and incorporate a contaminated soil washing facility. The layout of the existing site will be revised to allow for greater efficiency of the recycling operations. The extension area will consist of a dedicated waste skip and HGV parking area in the extreme eastern sector. In addition, a smaller area (measuring 2,000sq.m) to the south of Lower Ecton Lane is proposed as a car parking area. The key sources of sound associated with the development is noise break-out from the existing Recycling Building, external mobile plant and external fixed plant items associated with the existing site and the proposed extension. This assessment has been undertaken in accordance with the following supplied drawings:

Proposed Site Layout (Drawing Number G15/19/003) dated 12th August 2019. The Proposed Site Layout is shown in Figure 1 of Appendix II.

1.3. LIMITATIONS

Where a noise or vibration survey is required to inform an assessment, E3P will endeavour to ensure that all noise and vibration measurements taken are robust, representative and reliable in order to inform an accurate assessment. Where mitigation measures are specified in this report, it should be noted that these measures are relative to a specific sound or vibration source, both in terms of the measured sound pressure and vibration level and the character of the sound source. Where either the sound pressure level or the character of the sound varies following completion of the sound survey, E3P cannot be held responsible for any subsequent variations in the proposed mitigation performance.



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2. ASSESSMENT METHODOLOGY

2.1. NATIONAL PLANNING POLICY FRAMEWORK

To prevent unacceptable risks from pollution, planning policies and decisions should ensure that new development is appropriate for its location. The effects (including cumulative effects) of pollution on health, the natural environment or general amenity, and the potential sensitivity of the area or proposed development to adverse effects from pollution, should be considered.

The national planning policy framework states that planning policies and decisions should aim to:

Avoid noise from giving rise to significant adverse impacts on health and quality of life as a result of new development.

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.

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.

2.2. NATIONAL PLANNING PRACTICE GUIDANCE

Noise needs to be considered when new developments may create additional noise and when new developments would be sensitive to the prevailing acoustic environment. When preparing local or neighbourhood plans, or taking decisions about new development, there may also be opportunities to consider improvements to the acoustic environment. Local planning authorities’ plan-making and decision-making should take account of the acoustic environment and in doing so consider:

Whether or not a significant adverse effect is occurring or is likely to occur.

Whether or not an adverse effect is occurring or is likely to occur.

Whether or not a good standard of amenity can be achieved.

In line with the explanatory note of the NPSE, this would include identifying whether the overall effect of the noise exposure (including the impact during the construction phase, where applicable) is, or would be, above or below the significant observed adverse effect level and the lowest observed adverse effect level for the given situation.



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The “observed effect levels” are as follows:

Significant observed adverse effect level: This is the level of noise exposure above which significant adverse effects on health and quality of life occur.

Lowest observed adverse effect level: This is the level of noise exposure above which adverse effects on health and quality of life can be detected.

No observed effect level: This is the level of noise exposure below which no effect at all on health or quality of life can be detected.

Table 2.1 summarises the noise exposure hierarchy, based on the likely average response.

TABLE 2.1 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, or having to close windows for some of the time because of the noise where there is no alternative ventilation. Potential for some reported 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. avoiding certain activities during periods of intrusion, having to keep windows closed most of the time because of the noise where there is no alternative ventilation. 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

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 (auditory and non-auditory).

Unacceptable adverse effect

Prevent



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The subjective nature of noise means that there is not a simple relationship between noise levels and the impact on those affected. This will depend on how various factors combine in any situation. These factors include the following:

The source and absolute level of the noise together with the time of day it occurs. Some types and level of noise will cause a greater adverse effect at night than if they occurred during the day. The adverse effect can also be greater simply because there is less background noise at night.

For non-continuous sources of noise, the number of noise events, and the frequency and pattern of occurrence of the noise can be important.

The spectral content of the noise and the general character of the noise. The local topology and topography should also be considered along with the existing and, where appropriate, the planned character of the area.

More specific factors to consider when relevant:

Where applicable, the cumulative impacts of more than one source should be considered along with the extent to which the source of noise is intermittent and of limited duration.

Consideration should also be given to whether adverse internal effects can be completely removed by closing windows and, in the case of new residential development, if the proposed mitigation relies on windows being kept closed most of the time. In both cases, a suitable alternative means of ventilation is likely to be necessary.

If external amenity spaces are an intrinsic part of the overall design, then the acoustic environment of those spaces should be considered so that they can be enjoyed as intended.

2.3. BS4142: 2014 ‘METHODS FOR RATING AND ASSESSING INDUSTRIAL AND COMMERCIAL SOUND’

This standard describes methods for rating and assessing sound of an industrial or commercial nature which includes:

Sound from industrial and manufacturing processes;

Sound from fixed installations which comprise mechanical and electrical plant and equipment;

Sound from the loading and unloading of goods and materials at industrial and / or commercial premises; and

Sound from mobile plant and vehicles that is an intrinsic part of the overall sound emanating from processes or premises, such as that from forklift trucks, or that from train or ship movements on or around an industrial or commercial Site.

The procedure detailed in the standard compares the measured or predicted specific noise level from any of the above with the background sound level at a residential dwelling. The measured background sound level at a receptor should be reliable and should not necessarily ascertain a lowest measured background sound level, but rather to quantify what is typical.

The specific noise level also acknowledges the reference time intervals depending upon whether the noise source operates during daytime (1-hour) or night-time (15-minute) periods.



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There are several ‘penalties’ which can be attributed to the specific sound level depending upon the ‘acoustic features’ of the sound level under investigation as follows:

Tonality

+2dB: where the tonality is just perceptible;

+4dB: where the tonality is clearly perceptible; and

+6dB: where the tonality is highly perceptible.

Impulsivity

+3dB: where the impulsivity is just perceptible;

+6dB: where the impulsivity is clearly perceptible; and

+9dB: where the impulsivity is highly perceptible.

Intermittency

+3dB: where the intermittency is readily distinctive against the acoustic environment.

In addition to the above, there is a penalty for ‘other sound characteristics’ of +3dB where a sound exhibits characteristics that are neither tonal nor impulsive, though are readily distinctive against the acoustic environment. BS4142 goes on to state that the rating level is equal to the specific sound level if there are no such features present or expected to be present. Assessment of the rating level relative to the background sound level can yield the following commentary:

Typically, the greater this difference (between the rating level and the background sound level), the greater the magnitude of impact;

A difference of around +10dB or more is likely to be an indication of a significant adverse impact, depending on the context;

A difference of around +5dB is likely to be an indication of an adverse impact, depending on the context; and

The lower the rating level is relative to the measured background sound level, the less likely it is that the specific sound source will have an adverse impact. Where the rating level does not exceed the background sound level, this is an indication of the specific sound source having a low impact.

It is common that a Local Planning Authority (LPA) will specify their own criterion and, where this is the case, this criterion will usually take precedence over a simple comparison of the rating level against the background sound level.



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3. SURVEY RESULTS

The measurement positions are detailed in Figure 1 of Appendix II.

3.1. UNATTENDED BACKGROUND SOUND SURVEY

E3P has conducted a full weekday and weekend Background Sound Survey in order to quantify the existing levels of background sound at the closest non-associated residential receptor to the development. The survey was carried out over the following time period:

14:00 Friday 9th June to 10:00 Tuesday 13th June 2019.

The following noise measurement position was chosen for the Background Sound Survey:

Noise Measurement Position 1 (NMP1): Located on the north eastern boundary of the proposed extension area, equidistant from the A45 as the residential receptors to the north of Lower Ecton Lane. Dominant sources of noise included road traffic and existing commercial sound associated with the WRF.

Table 3.1 details the range and median measured background sound levels. The daytime levels correspond to the LA90,1hr and the night-time levels to the LA90,15mins. Appendix III details the full hourly and 15-minute data.

TABLE 3.1 MEDIAN AND RANGE OF MEASURED BACKGROUND SOUND PRESSURE LEVELS

DATE TIME PERIOD

RANGE OF MEASURED BACKGROUND SOUND

PRESSURE LEVELS, LA90,T (dB)

MEDIAN MEASURED BACKGROUND SOUND

PRESSURE LEVELS, LA90,T (dB)

FRIDAY 7TH JUNE 2019

10:00–23:00 55.7 – 64.9 61.9

23:00–07:00 44.3 – 56.7 50.2

SATURDAY 8TH JUNE 2019

07:00–23:00 55.4 – 64.6 62.4

23:00–07:00 43.5 – 53.9 49.8

SUNDAY 9TH JUNE 2019

07:00–23:00 52.5 – 59.4 56.4

23:00–07:00 35.8 – 61.9 47.8

MONDAY 10TH JUNE 2019

07:00–11:00 61.9 – 64.5 62.8

3.2. ATTENDED SOURCE SOUND MEASUREMENTS

E3P have undertaken detailed measurements of all existing operations/plant items at the WRF, including for those that will be used within the extension. The survey was carried out over numerous days due to weather and in order to capture all applicable sources.

Measurements were undertaken as close of safely possible to ensure no interference from other operations/plant items. These looked to encompass full processes or capture a short representative period of an operation or movement of plant item.



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Table 3.2 details the measured noise levels for each plant item and/or operation. Measurements were completed with a sampling period of 20ms to allow post analysis of the noise levels. TABLE 3.2 MEASURED SOURCE NOISE LEVELS

SOURCE MEASURED NOISE

LEVEL, LAEQ,T (dB)

DISTANCE TO SOURCE (m)

ASSUMED ON-TIME IN 1-HOUR PERIOD

(seconds)

LOADING WOOD 78 5 600

HGV PASS-BY LOADED WITH SKIP

75.7 6 10

TRACKED LOADER PASS-BY

86.4 5 10

TRACKED LOADER PUTTING MATERIAL IN

LARGE CONTAINER 80.2 5 600

HGV PASS-BY OFF WEIGH BRIDGE

76.5 2 10

EMPTY SKIP PUT ON GROUND

80.2 5 5

EMPTY SKIP LOADED ONTO HGV

75.5 5 30

ASSORTED MATERIAL FALLING TO GROUND

84.6 5 1800

HGV EXITING RECYCLING BUILDING

79.9 5 10

CONCRETE BATCHING PLANT – LOADING

80.4 5 600

EXTERNAL GENERATOR

76.6 1 3600

FRONT LOADER REVERSE

79.9 5 10

FRONT LOADER PASS 76.4 5 10

FRONT LOADING PUTTING MATERIAL IN

CONTAINER 80.6 6 150

FRONT LOADER SCRAPING GROUND

80.3 5 20

SOIL SCREENER 109 LW - 2880

SOIL WASHING PLANT 109 LW - 2880

CRUSHER 82 LW - 1800

INTERNAL

SORTING CONVEYOR WITH METAL

87.2 2 1800



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SOURCE MEASURED NOISE

LEVEL, LAEQ,T (dB)

DISTANCE TO SOURCE (m)

ASSUMED ON-TIME IN 1-HOUR PERIOD

(seconds)

ALARM INSIDE BUILDING

75.7 10 1800

INTERNAL GENERATOR 92.4 2 3600

SORTING CONVEYOR 91 2 1800

FAN ON GENERATOR 94 2 3600

BEHIND METAL SORTING AREA

96 5 900

BRICK DROP 86 5 1800

EMPTY SKIP OFF HGV 83.5 5 100

MANUALLY CLEARING MATERIAL FROM

CONVEYOR 95.8 2 300

During the survey, conditions remained dry and wind speeds rarely exceeded 5m/s. The equipment outlined in Table 3.3 was used for the noise survey.

TABLE 3.3 NOISE MEASUREMENT EQUIPMENT AND CALIBRATION DATES

MEASUREMENT POSITION

EQUIPMENT DESCRIPTION

MANUFACTURER & TYPE NUMBER

SERIAL NUMBER CALIBRATION DUE DATE

NMP1 AND SOURCE

Sound Level Meter 01dB Fusion 12039 26th March 2021

Pre-amplifier 01dB Pre22 Internal

Microphone 01dB 40CE 330832

Calibrator 01dB Cal31 87281 8th March 2020

Calibration Level at Start of Survey: 93.4dB

Calibration Level at End of Survey: 93.4dB

Drift: 0.0dB

The sound level meter was field-calibrated on site using the above-mentioned calibrator prior to and after noise measurements were taken. No significant drift was witnessed as noted above. Calibration certificates are available upon request.



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4. NOISE IMPACT ASSESSMENT

This assessment has used noise levels measured on-site and information provided by Mick George Limited on the operational periods and proposed plant/operations that will form the extension. Regarding assumptions for the assessment, the following has been considered:

The daytime period has been assessed between the hours of 07:00 to 19:00 and the evening period between the hours of 19:00 and 23:00. BS4142:2014 has been used to determine the likelihood of adverse impact within the garden areas over a reference time period of 1 hour;

The night-time period has been assessed between the hours of 23:00 and 07:00 for a reference time period of 15 minutes;

On-time periods are taken from observations on Site and experience from existing Mick George Ltd Sites; and

No noise attenuation due to atmospheric absorption has been accounted for in the calculations. In addition to the measured noise levels detailed in Section 3.2, there is a requirement to calculate the sound power levels of the facades of the Recycling Building due to internal operations. As such, internal to external calculations have been undertaken below. The direct sound pressure levels (Direct SPL) within the reception building have been calculated based on the following formula: Direct SPL = LW + (10 x Log (1/ ((4*3.14) x D2))) Where: LW is the sound power level of the source D is the distance of the source from the facade

Each Direct SPL of each item of plant on each façade have been logarithmically added together to provide the Direct SPL for each façade. The reverberant sound pressure level (Reverb SPL) has been calculated as follows: Reverb SPL = LW + (10 x Log (4 / RC) Where: LW is the sound power level of the source RC is the room constant

These have again been logarithmically added together to provide the Reverb SPL for each façade for all sources. The Reverb SPL has then been logarithmically added to the Direct SPL for each façade. Assuming a Sound Reduction Index of 21dB for a single steel skin for the reception building, the following equation has been used to determine the sound power level of each façade: LW = LP + (10 x Log (S)) Where: LP is the sound pressure level of the façade assuming -6 directivity S is the surface area of the facade

Table 4.1 details the calculated sound power levels of each façade.



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TABLE 4.1 CALCULATED SOUND POWER LEVELS OF BUILDING FACADES AND ROOF

BUILDING COMPONENT ASSUMED SURFACE AREA

(m2)

CALCULATED SOUND POWER LEVEL, LW

(dB)

NORTH 500 85.4

EAST 600 88.1

SOUTH 500 87.5

WEST 600 88.8

ROOF 3000 97.1

For the BS4142:2014 assessments, penalties are applied to the specific sound level in order to provide the rating level. These penalties relate to the acoustic features of the sound source. Accordingly, the following subjective features have been accounted for in the assessment, in accordance with the subjective method detailed in BS 4142:2014, for the Site as a whole operation.

TABLE 4.2 ACOUSTIC FEATURES

ACOUSTIC FEATURE APPLICABLE? ATTRIBUTABLE

PENALTY COMMENT

TONALITY No - No tonal elements are assumed

given the masking effect offered by the A45.

IMPULSIVITY Yes

+3dB Just perceptible impulses are expected given the distance to

the receptor (>200m).

INTERMITTENCY Yes

+3dB Intermittent operations are

likely to be just perceptible over the existing sound climate.

OTHER SOUND CHARACRTERISTICS

No - Other penalties applied.

The operational periods of the existing Site and the proposed extension remain unchanged, as per below: Waste Facility All waste handling and recycling (excluding crushing and baling) operations at the site shall be carried out between the following times (including the exceptions also referred to in this condition):

05:00 Mondays to 00:00 Fridays

07:00 and 18:00 Saturdays

08:00 and 16:00 Sundays

No activities on Public Holidays and Bank Holidays (except a maximum of 20 HGV deliveries). Operation of the crushing and baling equipment shall not exceed the following times:



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07:30 and 18:00 Mondays to Fridays

08:00 and 13:00 Saturdays

No activities on Sundays or Public Holidays and Bank Holidays. Concrete Batching Plant Operation of the concrete batching plant shall be carried out between the following times:

07:00 to 18:00 Mondays to Fridays (with the exception of 20 days per annum on which the plant shall operate from 18:00 and 05:00 hours Monday to Friday)

07:00 and 13:00 Saturdays And at no other times or on Sundays, Bank or Public Holidays. As such, E3P will undertake the following assessments in order to capture all eventualities and operations to inform a robust assessment:

Weekday – Daytime 07:00 – 19:00 – All Operations.

Weekday – Evening 19:00 – 23:00 – No Crushing, Baling or Concrete Batching Plant.

Weekday – Night 23:00 – 07:00 – No Crushing, Baling or Concrete Batching Plant.

Weekend – Daytime 07:00 – 18:00 – No Crushing, Baling or Concrete Batching Plant. The above are considered robust and worst case as there are periods of overlap, particularly on Sundays when operations cease at 16:00, and background sound levels during these times will be lower.

4.1. WEEKDAY DAYTIME – ALL OPERATIONS

Table 4.3 calculates the resultant specific noise levels at the receptors to the north west. Within the calculated noise levels, allowance has been given for any line of sight removal for operations/plant/facades that are shielded from the receptor and soft ground attenuation accounting for proportion of soft ground and source height. TABLE 4.3 CALCULATION OF SPECIFIC NOISE LEVELS – WEEKDAY DAYTIME – ALL OPERATIONS

SOURCE

MEASURED NOISE LEVEL, LAEQ,T (dB)

MEASUREMENT DISTANCE

(m)

ASSUMED ON-TIME

IN 1-HOUR PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT

REMOVAL AND SOFT GROUND

CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,1HR

(dB)

LOADING WOOD

78 5 600 192 -5.0 33.5


75.7 6 10 436 -7.8 5.2



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SOURCE



(m)

ASSUMED ON-TIME

IN 1-HOUR PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,1HR

(dB)


86.4 5 10 238 -10.9 16.4

TRACKED LOADER PUTTING

MATERIAL IN LARGE

CONTAINER

80.2 5 600 238 -10.9 28.0


76.5 2 10 273 -11.1 0.1


80.2 5 5 405 -8.8 4.7

EMPTY SKIP LOADED

ONTO HGV 75.5 5 30 405 -7.7 8.8

ASSORTED MATERIAL

FALLING TO GROUND

84.6 5 1800 260 -18.8 28.5

HGV EXITING

RECYCLING BUILDING

79.9 5 10 260 -16.0 4.0


80.4 5 600 295 -8.8 28.4

EXTERNAL GENERATOR

76.6 1 3600 238 -9.8 19.2


79.9 5 10 235 -9.5 11.4

FRONT LOADER

PASS 76.4 5 10 235 -9.5 7.9



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SOURCE



(m)

ASSUMED ON-TIME

IN 1-HOUR PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,1HR

(dB)

FRONT LOADING PUTTING

MATERIAL IN

CONTAINER

80.6 6 150 235 -8.0 26.9

FRONT LOADER

SCRAPING GROUND

80.3 5 20 260 -8.1 15.3

SOIL SCREENER

109 LW - 2880 268 -7.5 43.9

SOIL WASHING

PLANT 109 LW - 2880 373 -6.5 42.1

CRUSHER 82 LW - 1800 312 -6.4 14.7

SCREENER FOR

BOTTOM ASH AREA

109 LW - 2880 405 -5.8 41.1

RB NORTH FAÇADE

85.4 LW - 3600 217 -4.2 26.5

RB EAST FAÇADE

88.1 LW - 3600 251 -14.4 17.7

RB SOUTH FAÇADE

87.5 LW - 3600 248 -14.4 17.2

RB WEST FAÇADE

88.8 LW - 3600 209 -4.1 30.3

RB ROOF 97.1 LW - 3600 240 -7.9 33.6

Table 4.4 combines the specific noise levels for all sources, applies the penalties and compares the rating level with the typical background sound levels. The background sound level used was the lowest measured between 19:00 and 23:00 on Friday, after which main operations cease.



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TABLE 4.4 BS 4142:2014 ASSESSMENT – WEEKDAY DAYTIME

COMBINED SPECIFIC NOISE

LEVEL, LAEQ,1HR

(dB)

ACOUSTIC CHARACTER CORRECTION

COMBINED RATING LEVEL,

LA,R (dB)

APPLICABLE BACKGROUND SOUND LEVEL,

LA90,1HR

(dB)

DIFFERENCE, +/- (dB)

48 +6 54 56 -2

Table 4.4 indicates that the difference between the rating level and the Background Sound Level is -2dB at the closest receptors to the west of the Site. As such, no adverse impact is predicted. Furthermore, it is predicted that the proposed extension and existing operations will result in the No Observed Adverse Effect Level (NOAEL) with the following commentary:

“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.”

The existing sound climate is already dominated by road traffic and existing similar industrial operations. As such, the introduction of additional sources at the WRF, although may increase noise levels, should not affect the acoustic character of the area. Accordingly, no action is required.

4.2. WEEKDAY EVENING – NO CRUSHING, BALING OR CONCRETE BATCHING PLANT

Table 4.5 calculates the resultant specific noise levels at the receptors to the north west during evening periods. TABLE 4.5 CALCULATION OF SPECIFIC NOISE LEVELS – WEEKDAY EVENING – NO CRUSHING, BALING OR CONCRETE BATCHING

SOURCE



(m)

ASSUMED ON-TIME

IN 1-HOUR PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,1HR

(dB)

LOADING WOOD

78 5 600 192 -5.0 33.5


86.4 5 10 238 -10.9 16.4


MATERIAL IN LARGE

CONTAINER

80.2 5 600 238 -10.9 28.0



Page 18

SOURCE



(m)

ASSUMED ON-TIME

IN 1-HOUR PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,1HR

(dB)


76.5 2 10 273 -11.1 0.1

ASSORTED MATERIAL

FALLING TO GROUND

84.6 5 1800 260 -18.8 28.5

HGV EXITING

RECYCLING BUILDING

79.9 5 10 260 -16.0 4.0

EXTERNAL GENERATOR

76.6 1 3600 238 -9.8 19.2


79.9 5 10 235 -9.5 11.4

FRONT LOADER

PASS 76.4 5 10 235 -9.5 7.9


MATERIAL IN

CONTAINER

80.6 6 150 235 -8.0 26.9

FRONT LOADER

SCRAPING GROUND

80.3 5 20 260 -8.1 15.3

RB NORTH FAÇADE

85.4 LW - 3600 217 -4.2 26.5

RB EAST FAÇADE

88.1 LW - 3600 251 -14.4 17.7

RB SOUTH FAÇADE

87.5 LW - 3600 248 -14.4 17.2

RB WEST FAÇADE

88.8 LW - 3600 209 -4.1 30.3

RB ROOF 97.1 LW - 3600 240 -7.9 33.6



Page 19

Table 4.6 combines the specific noise levels for all sources, applies the penalties and compares the rating level with the typical background sound levels. The background sound level used was the lowest measured between 19:00 and 23:00 on Friday, after which main operations cease. TABLE 4.6 BS 4142:2014 ASSESSMENT – WEEKDAY EVENING


LEVEL, LAEQ,1HR

(dB)



LA,R (dB)


LA90,1HR

(dB)


39 +6 45 56 -10

Table 4.6 indicates that the difference between the rating level and the Background Sound Level is -10dB at the closest receptors to the west of the Site. As such, no adverse impact is predicted.

4.3. WEEKDAY NIGHT – NO CRUSHING, BALING OR CONCRETE BATCHING PLANT

Table 4.7 calculates the resultant specific noise levels at the receptors to the north west during night-time periods. TABLE 4.7 CALCULATION OF SPECIFIC NOISE LEVELS – WEEKDAY NIGHT – NO CRUSHING, BALING OR CONCRETE BATCHING

SOURCE



(m)

ASSUMED ON-TIME

IN 15-MINUTE PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,15MINS

(dB)


86.4 5 10 238 -10.9 24.4


76.5 2 10 273 -11.1 6.1

HGV EXITING

RECYCLING BUILDING

79.9 5 10 260 -16.0 10.0

EXTERNAL GENERATOR

76.6 1 900 238 -9.8 25.2


79.9 5 10 235 -9.5 17.4



Page 20

SOURCE



(m)

ASSUMED ON-TIME

IN 15-MINUTE PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,15MINS

(dB)

FRONT LOADER

PASS 76.4 5 10 235 -9.5 13.9


MATERIAL IN

CONTAINER

80.6 6 150 235 -8.0 32.9

RB NORTH FAÇADE

85.4 LW - 900 217 -4.2 27.0

RB EAST FAÇADE

88.1 LW - 900 251 -14.4 18.2

RB SOUTH FAÇADE

87.5 LW - 900 248 -14.4 17.7

RB WEST FAÇADE

88.8 LW - 900 209 -4.1 30.8

RB ROOF 97.1 LW - 900 240 -7.9 33.9

Table 4.8 combines the specific noise levels for all sources, applies the penalties and compares the rating level with the typical background sound levels. The background sound level used was the lowest measured between 23:00 and 07:00 Saturday/Sunday, which is considered worst case. With regards the acoustic features, it is considered that no impulsive operations would be active or audible at the receptors and so only intermittency is applied here. TABLE 4.8 BS 4142:2014 ASSESSMENT – WEEKDAY NIGHT

COMBINED SPECIFIC NOISE LEVEL, LAEQ,15MINS

(dB)



LA,R (dB)


LA90,15MINS

(dB)


38 +3 41 42 -1


4.4. WEEKEND DAYTIME – NO CRUSHING, BALING OR CONCRETE BATCHING PLANT

Table 4.9 calculates the resultant specific noise levels at the receptors to the north west during a typical weekend period.



Page 21

TABLE 4.9 CALCULATION OF SPECIFIC NOISE LEVELS – WEEKEND DAYTIME – NO CRUSHING, BALING OR CONCRETE BATCHING PLANT

SOURCE



(m)

ASSUMED ON-TIME

IN 1-HOUR PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,1HR

(dB)

LOADING WOOD

78 5 600 192 -5.0 33.5


75.7 6 10 436 -7.8 5.2


86.4 5 10 238 -10.9 16.4


MATERIAL IN LARGE

CONTAINER

80.2 5 600 238 -10.9 28.0


76.5 2 10 273 -11.1 0.1


80.2 5 5 405 -8.8 4.7

EMPTY SKIP LOADED

ONTO HGV 75.5 5 30 405 -7.7 8.8

ASSORTED MATERIAL

FALLING TO GROUND

84.6 5 1800 260 -18.8 28.5

HGV EXITING

RECYCLING BUILDING

79.9 5 10 260 -16.0 4.0


80.4 5 600 295 -8.8 28.4

EXTERNAL GENERATOR

76.6 1 3600 238 -9.8 19.2



Page 22

SOURCE



(m)

ASSUMED ON-TIME

IN 1-HOUR PERIOD

(seconds)

DISTANCE TO

RECEPTOR (m)

LINE OF SIGHT


CORRECTION (dB)

CALCULATED SPECIFIC

NOISE LEVEL AT

RECEPTOR, LAEQ,1HR

(dB)


79.9 5 10 235 -9.5 11.4

FRONT LOADER

PASS 76.4 5 10 235 -9.5 7.9


MATERIAL IN

CONTAINER

80.6 6 150 235 -8.0 26.9

FRONT LOADER

SCRAPING GROUND

80.3 5 20 260 -8.1 15.3

RB NORTH FAÇADE

85.4 LW - 3600 217 -4.2 26.5

RB EAST FAÇADE

88.1 LW - 3600 251 -14.4 17.7

RB SOUTH FAÇADE

87.5 LW - 3600 248 -14.4 17.2

RB WEST FAÇADE

88.8 LW - 3600 209 -4.1 30.3

RB ROOF 97.1 LW - 3600 240 -7.9 33.6

Table 4.10 combines the specific noise levels for all sources, applies the penalties and compares the rating level with the typical background sound levels. The background sound level used was the lowest measured between 19:00 and 23:00 Saturday and Sunday immediately after existing operations cease on Saturday and Sunday. TABLE 4.10 BS 4142:2014 ASSESSMENT – WEEKEND DAYTIME


LEVEL, LAEQ,1HR

(dB)



LA,R (dB)


LA90,1HR

(dB)


40 +6 46 53 -7




Page 23

4.5. BS 4142:2014 SUMMARY OF RESULTS

Table 4.11 provides a summary of all the above BS 4142:2014 assessments for ease of reference: TABLE 4.11 BS 4142:2014 ASSESSMENT – SUMMARY

SCENARIO COMBINED SPECIFIC

NOISE LEVEL,

LAEQ,T

(dB)



LA,R (dB)


LA90,T

(dB)

DIFFERENCE, +/-

(dB)

Weekday Daytime

48 +6 54 56 -2

Weekday Evening

39 +6 45 56 -10

Weekday Night 38 +3 41 42 -1

Weekend Daytime

40 +6 46 53 -7



Page 24

5. MITIGATION

The previous section determined that the predicted rating level for all scenarios falls below the respective background sound level due to existing and proposed operations at the WRF. As such, no mitigation measures are required.



Page 25

6. CONCLUSION AND RECOMMENDATIONS

E3P were commissioned by Mick George Limited in order to undertake a noise impact assessment for a proposed extension to the existing WRF at Great Billing. Attended source noise measurements have been undertaken at the existing Great Billing Site in order to inform the assessment. Furthermore, an unattended background sound survey has been undertaken in the north east area of the proposed extension over a full weekday and weekend period. Detailed calculations have been undertaken to assess noise levels resulting from various operations and plant items at the closest receptors to the west along Lower Ecton Lane. These levels have been used to predict the Rating Level at the receptors which has been compared with the typical background sound level, accounting for any acoustic characteristics associated with the sound in accordance with BS 4142:2014. The assessment determined that the rating level would fall below the Background Sound Level during daytime, evening and night-time periods. as such, no mitigation measures are required. The assessment has shown that no adverse impact is predicted day, evening or night at the receptors to the west on Lower Ecton Lane. As such, noise need not be a material consideration in the granting of planning permission.

END OF REPORT



Page 26

APPENDIX I GLOSSARY OF ACOUSTIC

TERMINOLOGY



Page 27

NOISE Noise is defined as unwanted sound. Human ears are able to respond to sound in the frequency range 20 Hz (deep bass) to 20,000 Hz (high treble) and over the audible range of 0 dB (the threshold of perception) to 140 dB (the threshold of pain). The ear does not respond equally to different frequencies of the same magnitude but is more responsive to mid-frequencies than to lower or higher frequencies. To quantify noise in a manner that approximates the response of the human ear, a weighting mechanism is used. This reduces the importance of lower and higher frequencies, in a similar manner to the human ear. Furthermore, the perception of noise may be determined by a number of other factors, which may not necessarily be acoustic. In general, the impact of noise depends upon its level, the margin by which it exceeds the background level, its character and its variation over a given period of time. In some cases, the time of day and other acoustic features such as tonality or impulsiveness may be important, as may the disposition of the affected individual. Any assessment of noise should give due consideration to all of these factors when assessing the significance of a noise source. The most widely used weighting mechanism that best corresponds to the response of the human ear is the “A”-weighting scale. This is widely used for environmental noise measurement, and the levels are denoted as dB(A) or LAeq, LA90 etc., according to the parameter being measured. The decibel scale is logarithmic rather than linear, and hence a 3 dB increase in sound level represents a doubling of the sound energy present. Judgement of sound is subjective but, as a general guide, a 10 dB(A) increase can be taken to represent a doubling of loudness, whilst an increase in the order of 3 dB(A) is generally regarded as the minimum difference needed to perceive a change under normal listening conditions. An indication of the range of sound levels commonly found in the environment is given in the following table.

TABLE A1 TYPICAL SOUND PRESSURE LEVELS

SOUND PRESSURE LEVEL LOCATION/EXAMPLE

0 Threshold of hearing

20–30 Quiet bedroom at night

30–40 Living room during the day

40–50 Typical office

50–60 Inside a car

60–70 Typical high street

70–90 Inside a factory

100–110 Burglar alarm at 1 m away

110–130 Jet aircraft on take off

140 Threshold of pain



Page 28

ACOUSTIC TERMINOLOGY TABLE A2 TERMINOLOGY

DESCRIPTOR EXPLANATION

dB (decibel) The scale on which sound pressure level is expressed. It is defined as 20 times the logarithm of the ratio between the root-mean-square pressure of the sound field and a reference pressure (2E-05 Pa).

dB(A) A-weighted decibel. This is a measure of the overall level of sound across the audible spectrum with a frequency weighting (i.e. “A” weighting) to compensate for the varying sensitivity of the human ear to sound at different frequencies.

LAeq, T LAeq is defined as the notional steady sound level which, over a stated period of time (T), would contain the same amount of acoustical energy as the A-weighted fluctuating sound measured over that period.

LAmax LAmax is the maximum A-weighted sound pressure level recorded over the period stated. LAmax is sometimes used in assessing environmental noise where occasional loud noises occur, which may have little effect on the overall Leq noise level but will still affect the noise environment. Unless described otherwise, it is measured using the “fast” sound level meter response.

L10 and L90 If a non-steady noise is to be described, it is necessary to know both its level and the degree of fluctuation. The Ln indices are used for this purpose, and the term refers to the level exceeded for n% of the time. Hence L10 is the level exceeded for 10% of the time and as such can be regarded as the “average maximum level”. Similarly, L90 is the “average minimum level” and is often used to describe the background noise. It is common practice to use the L10 index to describe traffic noise.

Free-field Level

A sound field determined at a point away from reflective surfaces other than the ground with no significant contributions due to sound from other reflective surfaces. Generally, as measured outside and away from buildings.

Fast A time weighting used in the root-mean-square section of a sound level meter with a 125-millisecond time constant.

Slow A time weighting used in the root-mean-square section of a sound level meter with a 1000-millisecond time constant.



Page 29

APPENDIX II FIGURES



Page 30

FIGURE 1 – PROPOSED SITE LAYOUT AND BACKGROUND SOUND MEASUREMENT POSITION

NMP1



Page 31

APPENDIX III MEASURED SOUND PRESSURE LEVELS



Page 32

TABLE A.1 HOURLY MEASURED AMBIENT AND BACKGROUND SOUND LEVELS

PERIOD START MEASURED AMBIENT SOUND

PRESSURE LEVEL, LAEQ,1HR (dB)

MEASURED BACKGROUND SOUND LEVEL, LA90,1HR

(dB)

06/07/2019 10:00 67.2 63.6

06/07/2019 11:00 67.1 64.9

06/07/2019 12:00 66.5 64.5

06/07/2019 13:00 64.9 61.9

06/07/2019 14:00 63.5 61.2

06/07/2019 15:00 63.9 62.0

06/07/2019 16:00 64.1 62.5

06/07/2019 17:00 63.7 61.4

06/07/2019 18:00 63.9 62.1

06/07/2019 19:00 63.2 60.9

06/07/2019 20:00 61.9 58.9

06/07/2019 21:00 61.1 57.9

06/07/2019 22:00 59.6 55.7

06/07/2019 23:00 57.8 52.4

06/08/2019 00:00 56.7 49.9

06/08/2019 01:00 55.0 44.4

06/08/2019 02:00 54.3 44.7

06/08/2019 03:00 52.9 43.0

06/08/2019 04:00 55.6 49.3

06/08/2019 05:00 58.8 53.7

06/08/2019 06:00 61.0 56.7

06/08/2019 07:00 62.3 59.0

06/08/2019 08:00 63.9 61.0

06/08/2019 09:00 64.5 62.1

06/08/2019 10:00 65.2 63.0

06/08/2019 11:00 65.6 63.4

06/08/2019 12:00 66.4 64.3

06/08/2019 13:00 66.6 64.6

06/08/2019 14:00 66.1 63.9

06/08/2019 15:00 65.8 63.5

06/08/2019 16:00 65.1 62.9

06/08/2019 17:00 64.6 62.6



Page 33




(dB)

06/08/2019 18:00 63.8 61.1

06/08/2019 19:00 62.3 59.3

06/08/2019 20:00 61.7 58.5

06/08/2019 21:00 59.6 55.5

06/08/2019 22:00 59.0 55.4

06/08/2019 23:00 57.9 53.9

06/09/2019 00:00 55.3 49.7

06/09/2019 01:00 54.5 46.2

06/09/2019 02:00 52.8 43.8

06/09/2019 03:00 52.6 43.5

06/09/2019 04:00 56.5 50.4

06/09/2019 05:00 55.3 48.9

06/09/2019 06:00 56.6 52.5

06/09/2019 07:00 58.1 53.1

06/09/2019 08:00 58.2 54.5

06/09/2019 09:00 60.2 57.1

06/09/2019 10:00 60.2 56.2

06/09/2019 11:00 60.8 56.1

06/09/2019 12:00 59.6 55.6

06/09/2019 13:00 59.8 56.6

06/09/2019 14:00 62.1 58.3

06/09/2019 15:00 60.0 57.1

06/09/2019 16:00 60.1 56.6

06/09/2019 17:00 61.9 58.7

06/09/2019 18:00 62.2 59.4

06/09/2019 19:00 62.0 58.8

06/09/2019 20:00 58.9 54.2

06/09/2019 21:00 57.2 53.7

06/09/2019 22:00 57.3 52.5

06/09/2019 23:00 55.6 48.6

06/10/2019 00:00 53.6 40.3

06/10/2019 01:00 52.9 35.8

06/10/2019 02:00 52.7 38.8



Page 34




(dB)

06/10/2019 03:00 55.8 45.0

06/10/2019 04:00 59.5 53.8

06/10/2019 05:00 62.0 57.3

06/10/2019 06:00 63.9 61.0

06/10/2019 07:00 64.5 61.9

06/10/2019 08:00 65.1 62.3

06/10/2019 09:00 66.5 64.5

06/10/2019 10:00 65.9 63.3

TABLE A.2 15 MINUTE MEASURED AMBIENT AND BACKGROUND SOUND LEVELS – NIGHT-TIME ONLY

PERIOD START MEASURED AMBIENT SOUND PRESSURE LEVEL, LAEQ,15MINS

(dB)

MEASURED BACKGROUND SOUND LEVEL, LA90,15MINS

(dB)

06/07/2019 23:00 58.8 55.3

06/07/2019 23:15 57.9 53.2

06/07/2019 23:30 57.5 51.7

06/07/2019 23:45 56.9 50.1

06/08/2019 00:00 56.8 49.3

06/08/2019 00:15 57.3 52.6

06/08/2019 00:30 56.1 50.5

06/08/2019 00:45 56.4 48.9

06/08/2019 01:00 54.6 44.6

06/08/2019 01:15 55.0 47.7

06/08/2019 01:30 55.6 45.0

06/08/2019 01:45 54.7 43.1

06/08/2019 02:00 54.7 44.3

06/08/2019 02:15 53.8 43.4

06/08/2019 02:30 53.7 45.2

06/08/2019 02:45 54.8 45.5

06/08/2019 03:00 53.1 43.1

06/08/2019 03:15 53.1 41.9

06/08/2019 03:30 51.9 42.5

06/08/2019 03:45 53.5 44.0

06/08/2019 04:00 54.0 47.5



Page 35


(dB)


(dB)

06/08/2019 04:15 55.8 51.5

06/08/2019 04:30 56.1 50.3

06/08/2019 04:45 56.1 51.1

06/08/2019 05:00 57.5 51.9

06/08/2019 05:15 59.4 55.9

06/08/2019 05:30 58.8 54.7

06/08/2019 05:45 59.4 54.6

06/08/2019 06:00 59.9 55.3

06/08/2019 06:15 61.0 56.9

06/08/2019 06:30 61.2 57.0

06/08/2019 06:45 61.7 58.3

06/08/2019 23:00 58.7 54.5

06/08/2019 23:15 58.3 54.8

06/08/2019 23:30 57.2 54.0

06/08/2019 23:45 57.3 53.2

06/09/2019 00:00 55.9 51.6

06/09/2019 00:15 56.0 50.1

06/09/2019 00:30 54.6 50.4

06/09/2019 00:45 54.4 48.2

06/09/2019 01:00 54.8 47.7

06/09/2019 01:15 54.9 46.2

06/09/2019 01:30 54.3 45.9

06/09/2019 01:45 53.8 45.5

06/09/2019 02:00 54.2 47.3

06/09/2019 02:15 53.3 44.5

06/09/2019 02:30 51.8 41.5

06/09/2019 02:45 51.1 42.6

06/09/2019 03:00 53.3 43.2

06/09/2019 03:15 52.6 42.0

06/09/2019 03:30 51.9 43.1

06/09/2019 03:45 52.4 46.3

06/09/2019 04:00 59.0 51.3



Page 36


(dB)


(dB)

06/09/2019 04:15 55.6 50.7

06/09/2019 04:30 55.3 50.1

06/09/2019 04:45 54.8 49.9

06/09/2019 05:00 52.1 48.0

06/09/2019 05:15 55.5 49.7

06/09/2019 05:30 56.5 51.3

06/09/2019 05:45 55.8 49.1

06/09/2019 06:00 56.3 51.5

06/09/2019 06:15 56.0 52.3

06/09/2019 06:30 56.9 52.5

06/09/2019 06:45 57.2 54.0

06/09/2019 23:00 55.8 50.0

06/09/2019 23:15 56.0 50.8

06/09/2019 23:30 55.0 48.4

06/09/2019 23:45 55.4 47.7

06/10/2019 00:00 54.8 42.1

06/10/2019 00:15 53.4 38.2

06/10/2019 00:30 53.1 42.3

06/10/2019 00:45 52.6 40.7

06/10/2019 01:00 53.9 40.7

06/10/2019 01:15 51.9 33.9

06/10/2019 01:30 52.4 35.1

06/10/2019 01:45 53.0 36.3

06/10/2019 02:00 52.5 37.7

06/10/2019 02:15 52.9 39.9

06/10/2019 02:30 52.4 39.1

06/10/2019 02:45 53.0 38.2

06/10/2019 03:00 53.9 40.0

06/10/2019 03:15 56.1 42.3

06/10/2019 03:30 55.2 46.7

06/10/2019 03:45 57.3 47.8

06/10/2019 04:00 59.0 53.4



Page 37


(dB)


(dB)

06/10/2019 04:15 61.0 58.3

06/10/2019 04:30 58.6 52.5

06/10/2019 04:45 59.2 55.1

06/10/2019 05:00 59.4 55.3

06/10/2019 05:15 62.1 58.9

06/10/2019 05:30 62.7 59.2

06/10/2019 05:45 62.9 59.7

06/10/2019 06:00 62.9 60.3

06/10/2019 06:15 63.5 61.0

06/10/2019 06:30 64.0 61.1

06/10/2019 06:45 65.0 62.9

Documents

Noise Impact Assessment · development to adverse effects from pollution, should be considered. The national planning policy framework states that planning policies and decisions