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Glanbia Doc No IE0310818-22-RP-0001 Issue A Project Purple 2 05 July 2012
ATTACHMENT 4
BASELINE NOISE SURVEY AND MODELLING REPORT (IE0310818-22-RP-0003)
BY PM GROUP
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CONTENTS
1. INTRODUCTION 4
2. SCOPE 4
3. NOISE SURVEY 5
3.1 Quiet Area Screening 5
3.2 Noise Monitoring 5
3.3 Baseline Noise Monitoring Results 10
3.4 Tonal Analysis 21
3.5 Discussion 22
3.6 Location NSL1 22
3.7 Location NSL2 22
3.8 Location NSL3 22
3.9 Location NSL4 23
3.10 Location NSL5 23
4. NOISE MODEL 24
4.1 Brief Description of ISO 9613-2: 1996 24
4.2 Noise Model Input Data 25
4.3 Noise Model Results 27
5. IMPACT ASSESSMENT 28
5.1 External Sources 28
5.2 Cumulative impact 30
5.3 Discussion of Impact 32
6. CONCLUSION 35
APPENDIX A 36 Nearest Noise Sensitive Locations 36
APPENDIX B 38 Noise Meter and Calibrator Certificates of Calibration 38
APPENDIX C 39 Noise Monitoring Full Spectrum Data 39
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APPENDIX D 76 iso-contour Plots 76
APPENDIX E 80 Model Sources Sound Power Data 80
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1. INTRODUCTION
PM Group was requested to carry out an environmental noise impact assessment of the proposed Project Purple facility in Belview, Co Kilkenny on behalf of Glanbia Ltd. The proposed site lies 2km southeast of the village of Slieveroe and 1km west of Belview port. The entire IDA landbank site measures 40.35 ha, of which 37.63 ha is zoned for industrial development under the Ferrybank-Belview Local Area Plan (March 2009).
As part of this impact assessment a baseline noise survey and environmental noise modelling was conducted to assess the impact of the proposed facility on the nearest noise sensitive locations.
2. SCOPE
The scope of the work carried out is as follows:
• Daytime noise monitoring
• Evening time noise monitoring
• Night time noise monitoring
• 1/3rd octave band analysis at each location for the day and night time scenarios
• Noise modelling of proposed facility
The noise survey was conducted on the 24th and 25th of May 2012 in accordance with the ISO 1996: Acoustics- Description and measurement of environmental noise and the EPA Guidance Note – Guidance Note for Noise: Licence Applications, Surveys and Assessments in Relation to Scheduled Activities (NG4). This report details the noise levels recorded during the survey. A drawing showing the location of monitoring locations is included in Appendix A.
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3. NOISE SURVEY
3.1 Quiet Area Screening
Prior to commencing the noise monitoring survey the site was screened to evaluate if the site was located in a ‘Quiet Area’ in order to determine the level of noise monitoring required.
The screening was conducted as per the EPA guidance ‘’Guidance Note for Noise: Licence Applications, Surveys and Assessments in Relation to Scheduled Activities (NG4)”
The results from this screening are displayed in Table 3.1 below:
Table 3.1: Quiet Area Screening
Screening Question Answer
Is the site >3km away from urban areas with a population of >1,000 people?
No
Is the site >10km away from urban areas with a population of >5,000 people?
No
Is the site >15km away from urban areas with a population of >10,000 people?
No
Is the site >3km away from any local industry? No
Is the site >10km away from any major industry centre? No
Is the site >5km away from any national primary route? No
Is the site >7.5km away from any motorway or dual carriageway?
No
Based on the above screening assessment the area is not classified as a ‘Quiet Area’.
3.2 Noise Monitoring
The baseline noise monitoring survey was carried out by PM Group on the 24th and 25th of May 2012. In accordance with EPA NG4 guidance note the survey was carried out over daytime, evening and night-time periods. Daytime period is defined as 07:00hrs to 19:00hrs, evening period is defined as 19:00hrs to 23:00hrs and the night-time period is defined as 23:00hrs to 07:00hrs.
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NG4 specifies the recommended minimum survey durations which are detailed below.
i Sampling period is to be the time period T stated within the relevant licence. Typically this will be either 15 minutes or 30 minutes in
duration. This applies to day, evening and night time periods.
ii Night-time measurements should normally be made between 23:00hrs and 04:00hrs, Sunday to Thursday, with 23:00hrs being the
preferred start time.
Measurements were conducted over the course of the survey period as follows:
• 09:09hrs to 13:13hrs on 25.05.2012 (Daytime)
• 19:18hrs to 22:22hrs on 24:05:2012 (Evening)
• 12:07hrs to 02:58hrs on 25.05.2012 (Night-time)
Measurements were conducted on sample periods of 30 minutes duration for daytime and evening monitoring, and of two 15 minute durations for night-time monitoring. For further details refer to Section 3.3 of this report.
The following parameters were recorded at each environmental noise monitoring location, along with details concerning the weather and noise sources identified:
• LAeq
• LAMax
• LA10
• LA90
Refer to Section 3.2.5 for a description of the noise terminology used in this report.
3.2.1 Noise Monitoring Locations
Noise measurements were conducted at the five nearest sensitive locations (NSL’s).
See Table 3.2 below for noise monitoring location descriptions & Figure 1 in Appendix A.
Period Minimum Survey Duration
Daytime (07:00 to 19:00hrs)
4 hour survey with a minimum of 3 sampling periodsi at each noise monitoring location.
Evening (19:00 to 23:00hrs) 2 hour survey with a minimum of 1 sampling period at each noise monitoring location.
Night-timeii (23:00 to 07:00hrs)
3 hour survey with a minimum of 2 sampling periods at each noise monitoring location.
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Table 3.2: Description of Noise Monitoring Points
Noise Monitoring Points Description
Noise Sensitive Location
NSL1 Nearest noise sensitive location located west of the site (National Grid Co-ordinates = E265210, N112917)
NSL2 Nearest noise sensitive location – located southeast of the site (National Grid Co-ordinates = E264281, N112599)
NSL3 Noise sensitive location – located north of the site (National Grid Co-ordinates = E 264835, N 113409)
NSL4 Noise sensitive location – located north of the site (National Grid Co-ordinates = E 264495, N 113328)
NSL5 Noise sensitive location – located northeast of the site (National Grid Co-ordinates = E 263789, N 113600)
3.2.2 Noise Guidance & Standards
The noise monitoring was conducted in accordance with the following guidance:
• EPA Guidance Note for Noise: Licence Applications, Surveys and Assessments in Relation to Scheduled Activities (NG4)
• International Standard ISO 1996-1:2003 - Acoustics – Description and Measurement of Environmental Noise (2003)
3.2.3 Equipment
The following noise measurement equipment was used to conduct the noise monitoring:
• Bruel and Kjaer Type 2250-L Sound Level Meter and Bruel and Kjaer 2260 Sound Level Meter were used. The microphone was protected from extraneous noises with a microphone shield.
• Both meters were calibrated before and after each monitoring period using the Bruel and Kjaer Type 4231 Calibrator.
• Tripods.
The Sound Level Meter and calibrator calibration certificates are included in Appendix B.
3.2.4 Weather
The weather throughout the survey period was dry. There was no wind of any consequence during the survey periods.
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3.2.5 Measurement Parameters
Noise is measured in terms of decibels (dB). The various measurement parameters and noise terminology are defined below.
• Decibel (dB)
Decibel (dB) is the standard unit for expressing the noise level (sound pressure level). It is calculated as a logarithm of the intensity of sound. It is derived from the logarithm of the ratio between the value of a quantity and a reference quantity. For sound pressure level the reference quantity is
20µPa which is the threshold of normal hearing and equates to 0dB. At the upper end of the scale 140dB is the threshold of pain.
• A-weighted Decibel (dBA)
Decibels measured on a sound level meter incorporating a frequency weighting (A weighting) which differentiates between sound of different frequency (pitch) in a similar way to the human ear. This takes account of the fact that the human ear has different sensitivities to sound at different frequencies.
• Leq
The equivalent continuous sound level – the sound pressure level of a steady sound having the same energy as a fluctuating sound over a specified measuring period. It can be considered similar to an average level. The LAeq value is the A-weighted Leq.
• LA90 and LA10 Values
The LA90 and LA10 values represent the A-weighted sound pressure levels exceeded for a percentage of the instrument measuring time. The LA90 represents the sound pressure level exceeded for 90% of the monitoring period and is a good indicator of the background noise level excluding peak noise events. LA10 indicates the sound pressure level exceeded for 10% of the monitoring period and is a good parameter for expressing event noise such as passing traffic.
• LAMax (dBA)
The maximum instantaneous value recorded over the monitoring period including A-weighting
• dB LAr, T
The equivalent continuous A- weighted sound pressure level during a specified time interval, T, plus specified adjustments for tonal character and impulsiveness of the sound.
• Tonal Noise
One-third octave band tonal analysis involves the calculation of an averaged, unweighted noise level to represent the frequencies within each third of an octave. These noise levels are then compared with the noise levels calculated for the adjacent one-third octave bands. If a noise level is at least 5dB higher than the noise levels representing the adjacent bands
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then it is considered tonal, since it is significantly louder than noise levels at similar frequencies.
• Impulsive Noise
A noise that is of short duration (typically less than one second), the sound pressure level of which is significantly higher than the background. e.g. hammer blow to metal sheet.
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3.3 Baseline Noise Monitoring Results
The results of the baseline environmental noise monitoring for each noise monitoring location is summarised in Table 3.3 to 3.7 below. Appendix A includes a drawing showing the location of each monitoring point.
The LA90 result represents the sound pressure level exceeded for 90% of the monitoring period and is a good indicator of the background noise level excluding peak noise events. LA10 indicates the sound pressure level exceeded for 10% of the monitoring period and is a good parameter for expressing event noise such as passing traffic.
Table 3.3 Results of NSL 1 Daytime, Evening time and Night Time Monitoring
Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Daytime
NSL1, A
10:20 47 69 50 38
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant sound of traffic in the distance (second most dominant sound). Light breeze throughout measurement- leaves on trees rustling. Birdsong constant. Intermittent construction noises audible where work was being carried out at farm buildings. Intermittent sounds of reversing trucks (reversing ‘beep’ sound). Light aeroplane sound in the distance. Car idling close to meter and jeep drove by meter.
NSL1, B
10:56 48 67 50 39
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant sound of traffic in the distance (second most dominant sound). Light breeze throughout measurement- leaves on trees rustling. Birdsong constant. Intermittent construction activity noise (movement of heavy machinery). A number of various alarms audible in the distance intermittently. Jet flying overhead.
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
NSL1, C
11:28 46 66 49 37
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant sound of traffic in the distance (second most dominant sound). Light breeze throughout measurement- leaves on trees rustling. Birdsong constant. Intermittent construction activity noise (movement of heavy machinery). Light airplane and jet passed overhead.
Daytime NSL1
Arithmetic Average of LA90 dB(A) 38
Arithmetic Average of LAeq dB(A) 47
Day time Criterion, dB LAr,T 47
Evening Time
NSL1, D
19:18 37 68 39 33
Traffic in the distance constantly audible (dominant noise source). Birdsong constant. Motorbike audible in the distance. Intermittent faint sound of rustling leaves in nearby trees. Virtually no wind throughout measurement period. Sound of truck reversing in the distance (beeping sound).
Evening Time NSL1
Arithmetic Average of LA90 dB(A) 33
Arithmetic Average of LAeq dB(A) 37
Day time Criterion, dB LAr,T 37
Night Time
NSL1, E 12:07 37 55 39 34
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Intermittent rustling of leaves on trees. Wind speed has increased from evening monitoring period.
NSL1, F 12:22 38 56 40 35 As above
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Night Time NSL1
Arithmetic Average of LA90 dB(A) 34
Arithmetic Average of LAeq dB(A) 37
Day time Criterion, dB LAr,T 37
Table 3.4 Results of NSL 2 Daytime, Evening time and Night Time Monitoring
Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Daytime
NSL2, A
12:09 46 66 50 36
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Light airplane passed overhead at start of measurement. Birdsong constant. Intermittent sound of traffic and heavy machinery moving in the distance. Rustling of leaves on tress when breeze picked up, only a slight breeze present.
NSL2, B
12:42 49 78 45 35
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Birdsong constant. Intermittent sound of traffic and heavy machinery moving in the distance. Rustling of leaves on tress when breeze became heavy, however only a slight breeze present. Car passed by meter.
NSL2, C 13:13 49 85 49 36
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source).
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Birdsong constant. Intermittent sound of traffic and heavy machinery moving in the distance. Rustling of leaves on tress when breeze became heavy, however only a slight breeze present. Jeep passed by meter. Two jets passed overhead at separate occasions.
Daytime NSL2
Arithmetic Average of LA90 dB(A) 36
Arithmetic Average of LAeq dB(A) 48
Day time Criterion, dB LAr,T 48
Evening Time
NSL2, D
20:03 42 73 44 34
Traffic audible in the distance- very faint. Birdsong constant. Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Virtually no wind. Three dogs passed meter and started barking. Recreational plane flying overhead. A number of pedestrians walked past chatting. People shouting in the distance audible.
Evening Time NSL2
Arithmetic Average of LA90 dB(A) 34
Arithmetic Average of LAeq dB(A) 42
Day time Criterion, dB LAr,T 42
Night Time
NSL2, E 02:02 38 58 40 34
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant rustling of leaves on trees. Wind speed has increased from evening monitoring period.
NSL2, F 02:19 39 58 41 34 As above
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Night Time NSL2
Arithmetic Average of LA90 dB(A) 34
Arithmetic Average of LAeq dB(A) 38
Day time Criterion, dB LAr,T 38
Table 3.5 Results of NSL 3 Daytime, Evening time and Night Time Monitoring
Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Daytime
NSL3, A
09:09 49 80 58 40
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). This NSL was very close to the facility. Birdsong constant. Very slight rustling of leaves (breeze minimal). Intermittent sound of traffic from nearby road. Sound of car revving in the distance. Intermittent sound of dog barking in nearby house for first 10 minutes of measurement. Car drove past during measurement. Light airplane passed overhead. Pedestrian passed by and spoke (approximately 3 minutes).
NSL3, B
09.40 47 71 38 49
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). This NSL was very close to the facility. Birdsong constant. Very slight rustling of leaves (breeze minimal). Intermittent sound of traffic from nearby road. A sudden loud sound from nearby industry. Man came from nearby
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
house and spoke for approximately 5 minutes.
NSL3, C
10:11 47 69 49 40
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). This NSL was very close to the facility. Birdsong constant. Very slight rustling of leaves (breeze minimal). Intermittent sound of traffic from nearby road. Reversing lorry in the distance audible (beeping sound). Car revving on nearby road very audible. Lady came from nearby house and spoke beside meter for approximately 4-5 minutes.
Daytime NSL3
Arithmetic Average of LA90 dB(A) 45
Arithmetic Average of LAeq dB(A) 48
Day time Criterion, dB LAr,T 48
Evening Time
NSL3, D
20.53 50 68 53 38
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). This NSL was very close to the facility. Birdsong constant. Pedestrian walked by and spoke for approximately 5 minutes. Traffic audible in the distance; faint sound. Loud truck audible on nearby road.
Evening Time NSL3
Arithmetic Average of LA90 dB(A) 38
Arithmetic Average of LAeq dB(A) 50
Day time Criterion, dB LAr,T 50
Night Time NSL3, E 00:48 41 63 43 36
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source).
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Intermittent rustling of leaves on trees. Motorbike accelerating in the distance intermittently. Intermittent sound of cars passing on nearby road. Wind speed has increased from evening monitoring period.
NSL3, F 01:03 43 58 46 36 As above
Night Time NSL3
Arithmetic Average of LA90 dB(A) 36
Arithmetic Average of LAeq dB(A) 42
Day time Criterion, dB LAr,T 42
Table 3.6 Results of NSL 4 Daytime, Evening time and Night Time Monitoring
Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Daytime
NSL4, A
10:54 55 78 48 36
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant birdsong. Faint sound of traffic on nearby road. Intermittent sound of machinery operating in the distance. Virtually no breeze. 8 cars and 2 vans drove past during the measurement.
NSL4, B
11:25 55 80 54 38
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant birdsong. Faint sound of traffic on nearby road. Intermittent sound of machinery operating in the distance.
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Virtually no breeze. 6 cars drove past meter during measurement. Pedestrian past and spoke loudly for approximately 3mins. Banging sound of gates in house directly behind meter. Sound of helicopter in the distance audible. Children playing in nearby house for approximately 20minutes of measurement. 6 cars drove past during measurement.
NSL4, C
11:55 56 79 50 36
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant birdsong. Faint sound of traffic on nearby road. Intermittent sound of machinery operating in the distance. Virtually no breeze. 15 cars and one small truck drove past. Children playing in garden of house directly behind meter. Light airplane flying overhead.
Daytime NSL4
Arithmetic Average of LA90 dB(A) 37
Arithmetic Average of LAeq dB(A) 55
Day time Criterion, dB LAr,T 55
Evening Time
NSL4, D
21:38 58 83 55 36
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Birdsong constant. 17 cars and one flatbed truck drove directly past meter. Sound of truck reversing in the distance (beeping sound). Pedestrians went by chatting.
Evening Time NSL4
Arithmetic Average of LA90 dB(A) 36
Arithmetic Average of LAeq dB(A) 58
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Day time Criterion, dB LAr,T 58
Night Time
NSL4, E 01:24 37 64 39 34
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (very audible - dominant noise source). . Constant rustle of leaves. Wind speed has increased from evening monitoring period.
NSL4, F 01:39 38 59 40 35 As above
Night Time NSL4
Arithmetic Average of LA90 dB(A) 34
Arithmetic Average of LAeq dB(A) 38
Day time Criterion, dB LAr,T 38
Table 3.7 Results of NSL 5 Daytime, Evening time and Night Time Monitoring
Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
Daytime
NSL5, A
12:39 55 82 44 33
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant birdsong. Slight rustling of leaves on trees. Dog barking occasionally in distance. Man came and spoke during measurement for approx 5-7 minutes. 8 cars drove past.
NSL5, B 13:10 53 76 46 34
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
source). Constant birdsong. Slight rustling of leaves on trees. Light airplane audible in the distance. Dog barking occasionally in the distance. Man talking close by for approximately 15 minutes.
NSL5, C
13:40 54 81 47 35
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Constant birdsong. Motorbike revving in the distance audible. Car starting up in nearby house. Breeze noticeably stronger during this measurement period; rustling of leaves on trees more audible. 8 cars and one loud van drove past.
Daytime NSL5
Arithmetic Average of LA90 dB(A) 34
Arithmetic Average of LAeq dB(A) 54
Day time Criterion, dB LAr,T 54
Evening Time
NSL5, D
22:22 47 77 38 31
Constant drone of stack from SmartPly Europe OSB (orientated strand board) facility (dominant noise source). Noise of traffic in the distance; faint sound. No birdsong. People shouting intermittently in the distance. Dog barking in the distance. 3 cars drove past during measurement.
Evening Time NSL5
Arithmetic Average of LA90 dB(A) 31
Arithmetic Average of LAeq dB(A) 47
Day time Criterion, dB LAr,T 47
Night Time NSL5, E 02:43 35 60 37 31 Constant drone of stack from SmartPly Europe OSB
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Noise Monitoring
Period
Monitoring Period Ref
No.
Start Time
LAeq dB(A)
LAMAX
dB(A) LA10
dB(A) LA90
dB(A) Audible Sounds during Monitoring Period
(orientated strand board) facility (dominant noise source). Constant rustle of leaves. Wind speed has increased from evening monitoring period.
NSL5, F 02:58 37 57 39 33 As above
Night Time NSL5
Arithmetic Average of LA90 dB(A) 32
Arithmetic Average of LAeq dB(A) 36
Day time Criterion, dB LAr,T 36
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3.4 Tonal Analysis
Tonal analysis was carried out on the results of the noise survey for each monitoring period. This involved the analysis of the spectrum of noise levels recorded at each monitoring location with respect to the frequencies (Hz) at which they occurred.
One-third octave band tonal analysis was employed and involves the calculation of an averaged noise level to represent the frequencies within each third of an octave. These noise levels are then compared with the noise levels calculated for the adjacent one-third octave bands. If a noise level meets the below criteria with regard to the noise levels representing the adjacent bands then it is considered tonal, since it is significantly louder than noise levels at similar frequencies.
• 15dB in low K frequency one third octave bands (25Hz to 125Hz);
• 8dB in middle K frequency bands (160Hz to 400Hz), and;
• 5dB in high K frequency bands (500Hz to 10,000Hz).
During the monitoring period a low audible tone was discernable at all NSL’s as a result of the stack from SmartPly Europe OSB (orientated strand board) facility located approximately 1.2km north east of NSL 1. Although subjectively discernable, in line with ISO 1996-2007 Annex D and based on the full spectrum graphs in Appendix C, it can be determined that there is no tonal noise present at any of the NSL’s.
Table 3.8: Tonal Noise Results
Noise Measurement Noise Level dB(A) Frequency (Hz)
NSL 1 Tonal Noise not detected for Day, Evening and Night
Time Monitoring
NSL2 Tonal Noise not detected for Day, Evening and Night Time Monitoring
NSL3 Tonal Noise not detected for Day, Evening and Night
Time Monitoring
NSL4 Tonal Noise not detected for Day, Evening and Night
Time Monitoring
NSL5 Tonal Noise not detected for Day, Evening and Night Time Monitoring
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3.5 Discussion
The environmental noise measurement results for the daytime, evening time and night-time noise monitoring periods at locations NSL1 – NSL5 are outlined in Table 3.2 to Table 3.7.
In the absence of tonal noise at any NSL (as per Section 3.4) LAeq = LAr,T.
3.6 Location NSL1
Traffic travelling in the distance was the dominant noise source from this monitoring location. During the monitoring period a low audible tone was discernable at NSL1 as a result of the stack from SmartPly Europe OSB (orientated strand board) facility located north east of the noise monitoring location. Although subjectively discernable, in line with ISO 1996-2007 Annex D and based on the full spectrum data available in Appendix C it can be concluded that there is no tonal noise present. The arithmetic averages for NSL 1 were of the order of 47dB(A) LAr,T and 38dB(A) LA90 for daytime, 37dB(A) LAr,T and 33dB(A) LA90 for evening and 37dB(A) LAr,T and 34dB(A) LA90 for night-time monitoring.
3.7 Location NSL2
During the noise survey, the constant drone of the stack from SmartPly Europe OSB (orientated strand board) facility was the dominant noise source. During the evening monitoring, pedestrians and dogs passed by the noise meter. There was intermittent traffic and machinery movement in the distance.
During the monitoring period a low audible tone was discernable at NSL2 as a result of the stack located east of NSL 1. Although subjectively discernable, in line with ISO 1996-2007 Annex D and based on the full spectrum data available in Appendix C it can be concluded that there is no tonal noise present. The arithmetic averages for NSL 2 were of the order of 48dB(A) LAr,T and 36dB(A) LA90 for daytime, 42dB(A) LAr,T
and 34dB(A) LA90 for evening and 38dB(A) LAr,T and 34dB(A) LA90 for night-time monitoring.
3.8 Location NSL3
Again the dominant noise source at this NSL was the constant drone of the stack from the nearby SmartPly Europe OSB (orientated strand board) facility. During the daytime survey, traffic passing on the nearby road was noted as a source of intermittent background noise.
Again during the monitoring period a low audible tone in the form of the constant drone from the sawmill was discernable at NSL3. Although subjectively discernable, in line with ISO 1996-2007 Annex D and based on the full spectrum data available in Appendix C it can be concluded that there is no tonal noise present. The arithmetic averages for NSL 3 were of the order of 48dB(A) LAr,T and 45dB(A) LA90 for daytime, 50dB(A) LAr,T and 38dB(A) LA90 for evening and 42dB(A) LAr,T and 36dB(A) LA90 for night-time monitoring.
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3.9 Location NSL4
During the noise survey, the constant drone of the stack from the nearby SmartPly Europe OSB (orientated strand board) facility was the dominant noise source. This noise monitoring was completed on a nearby road where traffic movement was the source of intermittent noise increase as traffic passed directly past the noise meter.
Again during the monitoring period a low audible tone resulting from the constant drone from the nearby SmartPly Europe OSB (orientated strand board) facility was discernable at NSL4. Although subjectively discernable, in line with ISO 1996-2007 Annex D and based on the full spectrum data available in Appendix C it can be concluded that there is no tonal noise present. The arithmetic averages for NSL 4 were of the order of 55dB(A) LAr,T and 37dB(A) LA90 for daytime, 58dB(A) LAr,T and 36dB(A) LA90 for evening and 38dB(A) LAr,T and 34dB(A) LA90 for night-time monitoring.
3.10 Location NSL5
The constant drone of the stack from the nearby SmartPly Europe OSB (orientated strand board) facility was the dominant noise source. During the daytime and evening monitoring, traffic drove directly passed the noise meter.
During the monitoring period a low audible tone resulting from the cconstant drone from the nearby sawmill was discernable at NSL5. Although subjectively discernable, in line with ISO 1996-2007 Annex D and based on the full spectrum data available in Appendix C it can be concluded that there is no tonal noise present The arithmetic averages for NSL 5 were of the order of 54dB(A) LAr,T and 34dB(A) LA90 for daytime, 47dB(A) LAr,T and 31dB(A) LA90 for evening and 36dB(A) LAr,T and 32dB(A) LA90 for night-time monitoring.
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4. NOISE MODEL
The Bruel & Kjaer Predictor Type 7810, V7.10 software package was used to model the noise levels to be emitted to the surrounding environment from the proposed development.
Predictor Type 7810 is a proprietary noise calculation package for computing noise levels in the vicinity of industrial sites. Calculations are based on the International Standard ISO 9613-2: 1996 “Acoustics – Attenuation of Sound Outdoors – Part 2: General Method of Calculation.” This method has the scope to take into account a range of factors affecting the attenuation of sound including:
• Magnitude of the noise source in terms of sound power;
• Distance between the source and the receiver;
• Presence of obstacles such as screens or barriers in the propagation path;
• Presence of reflecting surfaces;
• Hardness of the ground between the source and receiver;
• Attenuation due to atmospheric adsorption;
• Meteorological effects such as wind gradient, temperature gradient and humidity.
Calculations are performed over octave bands from 63 Hz to 8 kHz and results are reported in overall A-weighted decibels (dBA).
4.1 Brief Description of ISO 9613-2: 1996
ISO9613-2:1996 calculates the noise level based on each of the factors discussed above. However, the effect of meteorological conditions is significantly simplified by calculating the average downwind sound pressure level, LAT (DW), for the following conditions:
• Wind direction at an angle of ±45° to the direction connecting the centre of the specified receiver region with the wind blowing from source to receiver, and;
• Wind speed between approximately 1ms-1 and 5ms-1, measured at a height of 3m to 11m above the ground.
The equations and calculations also hold for average propagation under a well developed moderate ground based temperature inversion, which commonly occurs on clear calm nights.
The average downwind sound pressure level from any point source at a receiver location, LAT(DW), is determined by calculating LfT(DW) which is the equivalent continuous downwind octave-sound pressure level at the receiver location. This is calculated for each point source, and its image sources, and for the eight octave
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bands with nominal midband frequencies from 63Hz to 8 kHz. The equation for calculating this parameter is given below:
ADLDWL cWfT −+=)(
where:
Lw is the octave band sound power level produced by the point source;
Dc is the directivity correction for the point source;
A is the octave band attenuation that occurs during propagation, namely attenuation due to geometric divergence, atmospheric absorption, ground effect, barriers and miscellaneous other effects.
The agreement between calculated and measured values of LAT (DW) support the estimated accuracy shown in Table 4.1.
Table 4.1: Estimated accuracy for broadband noise of LAT (DW)
Height, h1 Distance, d
2
0<d<100m 100m<d<1000m
0<h<5m ±3dB ±3dB
5m<h<30m ±1dB ±3dB
Note 1: h Mean height of the source and receiver.
Note 2: d Mean distance between the source and receiver.
These estimates have been made from situations where there are no effects due to reflections or attenuation due to screening.
4.2 Noise Model Input Data
The primary noise sources from the proposed facility are as follows:
• 5 x Milk Intake Pumps
• 1 X Cream Export Pump
• 6 x Idling Milk Trucks
• 1 x Vegetable Oil Pump
• 1 x Miscellaneous Intake Pump
• 3 x Cooling towers
• 3 x Condenser
• 2 x Dryers
The input data to the model for each noise source also includes:
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• The source positions – this is the proposed location on the site of each principal equipment item/noise source (refer to the iso-contour drawing Appendix D).
• The source elevation (metres) – the height at which noise is emitted
− Milk & Cream Intake Pumps (Point Source) – 0.5m
− Miscellaneous Intake Pump (Point Source) – 0.5m
− Vegetable Oil Pump (Point Source) – 0.5m
− Top of Dryer Stacks (Point Source) – 47.5m
− Cooling tower (Point Source) – 28m
− Condensers (Point Source) – 8m
− Heavy Good Vehicles (HGVs) (Point Source) -0.5m
• Directivity – emission direction, all point sources emanate in a 360O
direction
• Source Noise Emissions – The A-weighted sound power levels for each source between frequencies 63Hz and 8kHz. In accordance with ISO 9613-2, the sound power levels at 31Hz were not inputted to the model.
• Working Hours – The model allows the user to define daytime and night-time periods, so that noise levels can be predicted for each period e.g. daytime/night-time. The following operational requirements were taken into account in the model:
5 x Milk Intake Pumps (all during day & evening, 3 during night at any one time)
1 X Cream Export Pump (not operational at night)
6 x Idling Milk Trucks (3 only operational at night at any one time)
1 x Vegetable Oil Pump (not operational at night)
1 x Miscellaneous Intake Pump (operational day, evening & night)
3 x Cooling towers (operational day, evening & night)
3 x Condenser (operational day, evening & night)
2 x Dryers (operational day, evening & night)
• The Receptor Positions – Receptors NSL1, NSL 2, NSL 3, NSL 4 and NSL 5 are the nearest noise sensitive locations where noise monitoring was carried out by PM Group in May 2012.
• Receptor Elevation – 1.5m is typical for a single storey house but for a worst case scenario (i.e. average height of a two-story house bedroom window) 4m was inputted into the model. NSL 5 inline with local topography was elevated 20m above the facilities proposed ground floor level of approximately 21m.
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• Ground Conditions - Ground conditions between the noise sources and the receptor points were also included in the model, namely grass and hardstanding areas as applicable. A background map of the proposed site was included in the model for reference purposes.
4.2.1 Assumptions
Noise sources which are located internally and which are not foreseen to have significant building breakout have been omitted from the model.
The above model inputs are for normal operation of the facility.
It should be noted that the proposed facility is still in early design. Detailed design data for the facilities noise sources is not yet available. Therefore in the absence of detailed design data ‘’typical’’ noise source data has been used as detailed in Appendix E. Therefore the above noise sources provide an indicative impact only.
4.3 Noise Model Results
Table 4.3 and 4.4 details the predicted maximum noise contribution (dBA) at the five NSL locations due to the noise sources from the proposed site.
Table 4.3: Predicted Daytime and Evening facility Noise Contribution
Receiver Point Contribution of Facility (dBA) (Day and Evening)
NSL1 39
NSL2 37
NSL3 34
NSL4 39
NSL5 30
Table 4.4: Predicted Night-time facility Noise Contribution
Receiver Point Contribution of Facility (dBA) (Night-time)
NSL1 37
NSL2 35
NSL3 32
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Receiver Point Contribution of Facility (dBA) (Night-time)
NSL4 36
NSL5 28
Noise level predictions were made for a grid of receiver points around the site and coloured iso-contours of the noise levels thereby generated to give an overall picture of the spatial distribution of noise levels within the grid. The iso-contour of predicted noise levels is contained in Appendix D.
5. IMPACT ASSESSMENT
In order to assess the impact of the resulting facility noise levels, as determined in Section 4, it is necessary to compare the results to applicable standards.
In accordance with EPA guidance Note NG4, given the existing background noise levels (LA90) (refer to Section 3 of this report) the appropriate noise criteria for the site should be follows:
• Daytime (07:00 to 19:00hrs) – 55dB LAr,T;
• Evening time (19:00 to 23:00hrs) – 50dB LAr,T;
• Night time (23:00 to 07:00hrs) – 45dB LAeq,T.
5.1 External Sources
The background noise survey carried out in May 2012 provides the current noise levels for the NSL’s inclusive of current industry. However, in order to accurately determine the proposed facility’s impact other planned industries must also be taken into account.
In Oct 2009 SUPRAM limited were granted planning permission for a pharmaceutical facility adjacent to the southern boundary of the proposed Glanbia facility. Although granted in 2009 this facility has not been built. In order to determine the predicted impact of both facilities on the nearest NSL’s, noise data was obtained from the publicly available EIS prepared by DPS Engineering. From this EIS it was predicted that there will be five primary noise sources onsite.
• Manufacturing and building services plant
• Delivers to warehouse
• Service yard activities
• Car parking
• Additional vehicular traffic on existing public roads
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The DPS Engineering assessment selected three NSL’s. Although these NSL’s (NSL1, NSL2 and NSL3) are not identical to the NSL locations detailed in Table 3.2 they are in the vicinity of NSL1, NSL4 and NSL2 respectively. Therefore it can be assumed that the predicted noise impact at these locations will be representative of the impact at NSL1, NSL4 and NSL2.
Based on the DPS Engineering Assessment the predicted SUPRAM impact on the various NSL’s is detailed in Table 5.1: Data from SUPRAM EIS was provided unweighted. Therefore an A weighted correction calculation was applied.
Table 5.1: SUPRAM Predicted Impact
Noise Source Glanbia NSL Location
SUPRAM NLS Location
Predicted Impact (dB(A))
Manufacturing and building services plant
NSL1 NSL1 35
NSL4 NSL2 28
NSL2 NSL3 30
Delivers to warehouse
NSL1 NSL1 22
Service yard activities
NSL1 NSL1 32
Car parking NSL1 NSL1 21
The above values are for daytime only with the exception of Manufacturing and Building Services plant which will operate 24/7. Based on the above Table 5.1, the predicated daytime impact from the proposed SUPRAM facility on NSL1 is 37dB(A), NSL2 is 30 dB(A) and NSL4 is 28dB(A).
The predicted impact from additional vehicular traffic is as follows:
Table 5.2 SUPRAM Traffic Impact
Year Location Change in Noise Level (dB)
Opening year 2010 Junction at Access Road Gorteens Area and N29
+0.21
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Year Location Change in Noise Level (dB)
Design year 2020 Junction at Access Road Gorteens Area and N29
+0.18
5.2 Cumulative impact
5.2.1 Daytime
The following table depicts the expected daytime cumulative impact from the proposed development:
Table 5.3: Daytime Cumulative Noise Impact
Location Monitored Ambient
Noise (LAr,T )
(dBA)
Predicted Contribution of
SUPRAM Facility (dBA)
Predicted Contribution of
Glanbia Facility (dBA)
Cumulative Noise Levels
(dBA)
Difference*
NSL 1 47 37 39 48 +1
NSL 2 48 30 37 48 0
NSL 3 48 0 33 48 0
NSL 4 55 28 39 55 0
NSL 5 54 0 30 54 0
5.2.2 Evening time
The following table depicts the expected evening time cumulative impact from the proposed development:
Table 5.4: Evening Time Cumulative Noise Impact
Location Monitored Ambient
Noise (LAr,T )
(dBA)
Predicted Contribution of
SUPRAM Facility (dBA)
Predicted Contribution
of Glanbia Facility (dBA)
Cumulative Noise Levels (dBA)
Difference*
NSL 1 37 35 39 42 +5
NSL 2 42 30 37 43 +1
NSL 3 50 0 33 50 0
NSL 4 58 28 39 58 0
NSL 5 47 0 30 47 0
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5.2.3 Night-time
The following table depicts the expected nigh-time cumulative impact from the proposed development:
Table 5.5: Night Time Cumulative Noise Impact
Location Monitored Ambient
Noise (LAr,T )
(dBA)
Predicted Contribution of
SUPRAM Facility (dBA)
Predicted Contribution of Glanbia Facility
(dBA)
Cumulative Noise Levels (dBA)
Difference*
NSL 1 37 35 37 41 +4
NSL 2 38 30 35 40 +2
NSL 3 42 0 32 42 0
NSL 4 38 28 36 40 +2
NSL 5 36 0 28 37 +1
5.2.4 Additional Vehicular Traffic and on Public Roads
Malachy Walsh and Partners have provided predicted traffic flows with and without the Proposed Development. These traffic flow values have been used to determine the predicted change in noise levels at the nearest residential dwelling to the main access road (L3412) junction with the N29. The method for calculating the increase in noise is based on the procedures within the NRA publication Guidelines for the Treatment of Noise and Vibration in National Road Schemes1 and the Department of Transport Welsh Office’s publication Calculation of Road Traffic Noise 2. Although these guidelines are for the planning and design of national road schemes they can also be used to determine the indicative impact from increased traffic movements. The NRA publication stipulates a design goal of 60dB Lden for all new national road schemes. In order to establish if the predicted impact from the proposed development will exceed this limit, Method B from the NRA guidance has been applied to determine the roads Lden. Lden is the day-evening-night composite noise indicator adopted by the EU for assuming overall road noise annoyance. Tables 5.6 and 5.7 below indicate resultant traffic flows and changes in noise levels associated with the subject site for current and opening years 2015 and deign year 2030.
1 National Roads Authority, 2004. “Guidelines for the Treatment of Noise and Vibration in National Road
Schemes” 2 Department of Transport Welsh Office (HMSO), 1988. “Calculation of Road Traffic Noise”
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Table 5.6 Changes in Traffic Noise Levels for AADT 2015
Opening Year 2015
Location Annual Average Daily Traffic Figures NRA Method B Lden (dB) Combined with Development
Change in Noise Level at (L3412) junction with the N29 (dB)
Year 2015 without development
Year 2015 with development
L3412 690 1120 57 +2
N29 2550 2980
Table 5.7 Changes in Traffic Noise Levels for AADT 2030
Design Year 2030
Location Annual Average Daily Traffic Figures NRA Method B Lden (dB), Combined with Development
Change in Noise Level at (L3412) junction with the N29 (dB)
Year 2030 without development
Year 2030 with development
L3412 860 1290 57 +2
N29 3180 3610
Based on Table 5.6 and 5.7 it can be seen that noise levels for from the proposed facility at (L3412) junction with the N29 will increase noise levels during the opening year and design year by +2dB. The calculated Lden values obtained are below the NRA design limit of 60dB Lden.
5.3 Discussion of Impact
In accordance with EPA guidance Note NG4, given the existing background noise levels (LA90) (refer to Section 3 of this report) the noise attributable solely to onsite activities shall not exceed the below criteria:
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• Daytime (07:00 to 19:00hrs) – 55dB LAr,T;
• Evening time (19:00 to 23:00hrs) – 50dB LAr,T;
• Night time (23:00 to 07:00hrs) – 45dB LAeq,T.
As some of the existing NSL are already in exceedence of these criteria the perceived impact rating needs to be assessed.
The perceived impact rating and the subjective response to changes in noise levels with regards to perceived changes in loudness has been outlined Table 5.8 below:
Table 5.8: Perceived Impact Rating and Subjective Responses
Change in Noise
Level
Impact Rating
EPA Glossary of Impacts
Subjective Reaction
Subjective Change
0 No Change N/A N/A N/A
<3 dB(A) Not Significant
Neutral, Imperceptible or Slight Impact
Barely perceptible
Negligible
3 – 5 dB(A)
Minor Significant Impact: Positive or Negative only
Perceptible Noticeable
6 - 10 dB(A)
Moderate Up to a doubling of loudness
Clearly Noticeable
11 – 15 dB(A)
Major Over a doubling of loudness
Substantial
>15dB(A) Severe Profound Significant Impact: Negative only
-- Very Substantial
Note: Based on Extract from Morris, Peter and Therivel, Riki, Methods of Environmental Impact Assessment 2nd Edition, 2001.
5.3.1 Daytime
Current noise levels at NSL1, NSL2 and NSL3 are currently low. The predicted impact at these NSL’s can be considered negligible given the maximum expected increase of +1dB(A). Current noise levels at NSL4 and NSL5 are high with NSL 4 already at the limit of 55dB LAr,T. There is no predicted change to current noise levels at NSL4 and NSL5 from the proposed facility
5.3.2 Evening Time
Current noise levels at NSL1and NSL2 are again currently low. The predicted impact at NSL2 can be considered negligible given the expected increase of +1 dB(A). The
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predicted impact at NSL1 can be considered minor but is still well below the limit 50dB LAr,T. Current noise levels at NSL3, NSL4 and NSL5 are high with NSL 3 already at the limit of 50dB LAr,T and NSL 4 already exceeding the limit of 55 dB LAr,T by +8 dB(A). There is no predicted change to current noise levels at NSL3, NSL 4 and NSL 5 from the proposed facility.
5.3.3 Night Time
Current noise levels at the NSL’s are currently low with the exception of NSL 3 at 42dB(A)LAr,T. The predicted impact at NSL2, NSL4 and NSL 5 can be considered negligible given the maximum expected increase of +2 dB(A). The predicted impact on NSL 1 can be considered minor with an increase of +4dB(A). However the cumulative impact at all NSL’s is expected to remain below the night time limit 45dB LAr,T. There is no predicted change to current noise levels at NSL3 from the proposed facility.
5.3.4 Traffic
It is expected that noise levels for from the proposed facility at (L3412) junction with the N29 will increase noise levels during the opening year and design year by +2dB. The impact of the SUPRAM facility on these values can not be predicted given the obsolete traffic data present in the SUPRAM EIS.
Although noise levels exceed the recommended increase of 1dB, in accordance with the NRA guidance, the derived combined maximum expected noise does not exceed the roads design goal of 60dB Lden. Therefore no mitigation measures are required. Based on these values it can be concluded that the perceived noise impact from traffic at the L3412 junction with the N29 is negligible.
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6. CONCLUSION
The ambient noise monitoring results indicate that existing noise levels at the noise sensitive locations are already generally low with the exception of NSL3, NSL4 and NSL5. The daytime results for NSL 4 are already equal to the 55dB LAr,T limit. The evening time results for NSL 3 are equal to the 50dB LAr,T limit while the results for NSL 4 are already exceeding the limit by +8dB(A). NSL 5 although not equal to or exceeding any limit still remains high during the daytime monitoring period at 54dB(A).
The cumulative impact of the predicted noise levels at the NSL’s resulting from the proposed facility, SUPRAM facility and together with the existing noise levels also indicate that there will be no significant cumulative noise effect at the NSL’s. The highest predicated increase on ambient noise is at NSL1 during the evening time. It is expected that ambient noise level will increase by +5dB(A). This is considered to be of minor significance with the predicated cumulative value still below the relative limit of 50dB LAr.
Tonal noise analysis of the existing noise environment indicates that there is currently no tonal noise detectable at any of the NSL’s. The design of the noise sources at the facility will ensure that tonal noise will not arise at the NSL’s due to the facility operation.
Based on the values presented in Table 5.6 and 5.7 the perceived noise impact from traffic at the L3412 junction with the N29 can be considered negligible.
Therefore in accordance with the EPA guidance Note NG4 noise attributable solely to onsite activities shall not exceed the below criteria:
• Daytime (07:00 to 19:00hrs) – 55dB LAr,T;
• Evening time (19:00 to 23:00hrs) – 50dB LAr,T;
• Night time (23:00 to 07:00hrs) – 45dB LAeq,T.
It can be concluded that the development will not have any significant adverse impact on ambient noise levels.
.
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APPENDIX A
NEAREST NOISE SENSITIVE LOCATIONS
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Figure 1: Noise Monitoring Locations
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APPENDIX B
NOISE METER AND CALIBRATOR CERTIFICATES OF CALIBRATION
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APPENDIX C
NOISE MONITORING FULL SPECTRUM DATA
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Noise Monitoring 1/3 Octave Band Data
Start Time 16Hz 20Hz 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz
NSL1, A 25/05/2012
10:20 52 53 52 51 50 50 50 45 43 43 41
NSL1, B 25/05/2012
10:56 53 52 52 51 50 50 50 46 44 41 40
NSL1, C 25/05/2012
11:28 49 48 49 49 48 48 50 48 43 43 42
NSL1, A 25/05/2012
12:09 49 48 48 49 50 48 42 41 40 36 36
NSL2, B 25/05/2012
12:42 50 50 50 51 53 50 51 43 42 45 41
NSL2, C 25/05/2012
13:13 55 52 52 50 49 48 48 47 45 44 43
NSL1, D 24/05/2012
19:18 -- 44 45 43 45 45 43 39 38 34 31
NSL2, D 24/05/2012
20:03 -- 48 49 52 54 48 42 38 40 38 37
NSL3, D 24/05/2012
20:53 -- 46 46 47 45 47 48 45 43 40 41
NSL4, D 24/05/2012
21:38 -- 49 48 50 56 57 58 50 50 49 46
NSL5, D 24/05/2012
22:22 -- 48 49 47 51 50 45 45 44 40 39
NSL1, E 25/05/2012
00:07 -- 46 46 45 45 41 40 38 41 34 33
NSL1, F 25/05/2012
00:22 -- 47 47 45 44 42 41 38 41 34 33
NSL3, E 25/05/2012
00:48 -- 44 49 53 59 63 66 69 77 75 77
NSL3, F 25/05/2012
01:03 -- 45 44 43 44 42 42 41 45 40 41
NSL4, E 25/05/2012
01:24 -- 55 52 49 47 44 42 39 40 35 34
NSL4, F 25/05/2012
01:39 -- 57 54 51 48 46 43 40 40 35 34
NSL2, E 25/05/2012 -- 54 60 63 69 68 68 68 74 68 71
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Start Time 16Hz 20Hz 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz
02:02
NSL2, F 25/05/2012
02:19 -- 55 56 46 43 43 42 40 40 34 35
NSL5, E 25/05/2012
02:43 -- 49 48 45 42 41 40 39 41 30 29
NSL5, F 25/05/2012
02:58 -- 53 58 60 61 64 67 69 73 68 70
NSL3, A 25/05/2012
09:09 -- 50 52 52 50 53 52 47 44 42 41
NSL3, B 25/05/2012
09:40 -- 51 51 51 50 51 50 46 43 41 41
NSL3, C 25/05/2012
10:10 51 54 51 50 51 51 52 45 44 45
NSL4, A 25/05/2012
10:54 -- 55 53 51 49 51 51 48 46 44 44
NSL4, B 25/05/2012
11:24 -- 55 56 57 58 56 57 53 50 49 48
NSL4, C 25/05/2012
11:55 -- 52 51 49 52 56 53 47 50 48 46
NSL5, A 25/05/2012
12:39 -- 56 61 68 70 71 80 76 78 83 82
NSL5, B 25/05/2012
13:10 -- 65 63 60 58 56 52 49 48 44 45
NSL5, C 25/05/2012
13:40 -- 68 65 63 60 58 54 51 49 47 46
Start Time 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz 1000Hz 1250Hz 1600Hz 2000Hz
NSL1, A 25/05/2012
10:20 39 39 38 36 37 35 35 33 31 28 27
NSL1, B 25/05/2012
10:56 40 37 36 35 36 36 34 33 31 28 28
NSL1, C 25/05/2012
11:28 39 39 38 36 35 33 32 31 29 28 27
NSL1, A 25/05/2012
12:09 36 34 34 31 32 30 29 29 30 31 32
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 42 of 82
Start Time 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz 1000Hz 1250Hz 1600Hz 2000Hz
NSL2, B 25/05/2012
12:42 42 41 42 39 40 39 39 39 38 37 36
NSL2, C 25/05/2012
13:13 43 43 40 38 36 35 34 33 33 31 32
NSL1, D 24/05/2012
19:18 29 25 29 29 30 28 28 28 25 25 25
NSL2, D 24/05/2012
20:03 37 37 37 35 31 31 33 31 29 29 28
NSL3, D 24/05/2012
20:53 41 35 35 35 34 34 34 34 32 37 43
NSL4, D 24/05/2012
21:38 45 47 48 46 48 47 49 51 50 48 46
NSL5, D 24/05/2012
22:22 40 39 38 38 39 40 42 40 38 34 31
NSL1, E 25/05/2012
00:07 30 30 35 33 32 30 28 27 23 20 18
NSL1, F 25/05/2012
00:22 30 31 37 34 33 31 27 26 23 21 20
NSL3, E 25/05/2012
00:48 76 77 80 81 81 81 82 84 83 79 77
NSL3, F 25/05/2012
01:03 37 35 36 34 34 35 34 34 32 29 27
NSL4, E 25/05/2012
01:24 32 32 34 30 30 28 28 26 25 24 24
NSL4, F 25/05/2012
01:39 32 32 34 31 30 29 29 27 26 25 25
NSL2, E 25/05/2012
02:02 72 73 78 78 78 78 78 77 76 75 74
NSL2, F 25/05/2012
02:19 33 32 34 32 31 30 29 28 26 26 25
NSL5, E 25/05/2012
02:43 30 31 33 30 27 27 26 25 23 20 19
NSL5, F 25/05/2012
02:58 71 72 76 75 75 76 77 77 76 75 74
NSL3, A 25/05/2012
09:09 40 38 37 36 37 39 39 39 37 37 37
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 43 of 82
Start Time 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz 1000Hz 1250Hz 1600Hz 2000Hz
NSL3, B 25/05/2012
09:40 39 38 35 34 34 36 36 36 33 33 36
NSL3, C 25/05/2012
10:10 43 40 36 36 37 37 37 36 33 31 33
NSL4, A 25/05/2012
10:54 44 44 43 42 44 45 47 47 46 44 42
NSL4, B 25/05/2012
11:24 46 45 44 44 45 45 45 46 46 45 44
NSL4, C 25/05/2012
11:55 46 46 45 44 45 46 48 49 47 45 43
NSL5, A 25/05/2012
12:39 85 86 87 89 90 92 96 99 97 94 94
NSL5, B 25/05/2012
13:10 46 47 44 44 45 45 46 45 43 40 37
NSL5, C 25/05/2012
13:40 47 46 44 44 46 46 46 47 45 42 41
Start Time 2500Hz 3150Hz 4000Hz 5000Hz 6300Hz 8000Hz 10000Hz 12500Hz 16000Hz
NSL1, A 25/05/2012
10:20 29 38 40 34 35 30 -- -- --
NSL1, B 25/05/2012
10:56 31 39 43 38 38 35 -- -- --
NSL1, C 25/05/2012
11:28 29 38 40 34 34 33 -- -- --
NSL1, A 25/05/2012
12:09 36 38 37 35 33 25 -- -- --
NSL2, B 25/05/2012
12:42 34 34 36 37 33 27 -- -- --
NSL2, C 25/05/2012
13:13 35 37 37 33 28 22 -- -- --
NSL1, D 24/05/2012
19:18 25 23 22 21 20 16 16 16 16
NSL2, D 24/05/2012
20:03 26 28 32 32 28 24 19 16 16
NSL3, D 24/05/2012 44 40 35 30 30 27 24 22 23
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 44 of 82
Start Time 2500Hz 3150Hz 4000Hz 5000Hz 6300Hz 8000Hz 10000Hz 12500Hz 16000Hz 20:53
NSL4, D 24/05/2012
21:38 43 40 38 35 33 31 30 28 26
NSL5, D 24/05/2012
22:22 29 28 25 22 21 21 21 17 17
NSL1, E 25/05/2012
00:07 17 16 16 16 15 14 14 14 15
NSL1, F 25/05/2012
00:22 19 19 19 19 18 17 16 14 15
NSL3, E 25/05/2012
00:48 74 73 72 71 69 67 63 60 57
NSL3, F 25/05/2012
01:03 26 26 27 26 25 24 23 21 19
NSL4, E 25/05/2012
01:24 24 23 23 22 20 19 18 16 16
NSL4, F 25/05/2012
01:39 24 23 23 23 21 20 19 17 17
NSL2, E 25/05/2012
02:02 74 75 74 72 70 67 63 59 56
NSL2, F 25/05/2012
02:19 25 25 25 24 22 21 20 17 16
NSL5, E 25/05/2012
02:43 18 18 18 16 15 14 14 13 14
NSL5, F 25/05/2012
02:58 73 73 72 70 67 65 62 60 57
NSL3, A 25/05/2012
09:09 37 38 39 36 35 32 24 22 20
NSL3, B 25/05/2012
09:40 36 33 34 36 36 34 21 19 18
NSL3, C 25/05/2012
10:10 34 38 38 34 31 28 22 21 19
NSL4, A 25/05/2012
10:54 40 38 37 36 33 29 26 23 22
NSL4, B 25/05/2012
11:24 43 40 39 37 35 32 28 25 23
NSL4, C 25/05/2012 40 38 37 35 32 29 28 26 25
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 45 of 82
Start Time 2500Hz 3150Hz 4000Hz 5000Hz 6300Hz 8000Hz 10000Hz 12500Hz 16000Hz 11:55
NSL5, A 25/05/2012
12:39 93 93 89 85 82 80 75 70 64
NSL5, B 25/05/2012
13:10 35 34 34 32 29 28 26 25 24
NSL5, C 25/05/2012
13:40 39 38 37 35 33 31 29 26 23
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 46 of 82
NSL1, A
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL1,A – Daytime
Suspected 1/3 Octave Band Frequency of Tone Hz
4000
Magnitude of Tone dB Leq 40
Is the magnitude greater than the threshold of hearing
No
Level Change from Preceding 1/3 Octave Band, dB Leq
2
Level Change from Following 1/3 Octave Band, dB Leq
6
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 47 of 82
NSL1, B
0
10
20
30
40
50
60
Fr e que nc y
LLeq
Tonal Analysis NSL1,B - Daytime
Suspected 1/3 Octave Band Frequency of Tone Hz
4000
Magnitude of Tone dB Leq 43
Is the magnitude greater than the threshold of hearing
No
Level Change from Preceding 1/3 Octave Band, dB Leq
4
Level Change from Following 1/3 Octave Band, dB Leq
5
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 48 of 82
NSL1, C
0
10
20
30
40
50
60
F req uency
LLeq
Tonal Analysis NSL1,C – Daytime – 11:28
Suspected 1/3 Octave Band Frequency of Tone Hz
4000
Magnitude of Tone dB Leq 40
Is the magnitude greater than the threshold of hearing
No
Level Change from Preceding 1/3 Octave Band, dB Leq
2
Level Change from Following 1/3 Octave Band, dB Leq
6
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 49 of 82
NSL1, D
0
5
10
15
20
25
30
35
40
45
50
16Hz
25Hz
40Hz
63Hz
100H
z
160H
z
250H
z
630H
z
1000
Hz
1600
Hz
2500
Hz
4000
Hz
6300
Hz
1000
0Hz
1600
0 Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL1, D – Evening Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion N/A
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 50 of 82
NSL1, E
0
5
10
15
20
25
30
35
40
45
50
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL1, E – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
100
Magnitude of Tone dB Leq 41
Is the magnitude greater than the threshold of hearing
Yes
Level Change from Preceding 1/3 Octave Band, dB Leq
38
Level Change from Following 1/3 Octave Band, dB Leq
34
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 51 of 82
NSL1, F
0
5
10
15
20
25
30
35
40
45
50
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL1, F – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
100 315
Magnitude of Tone dB Leq 41 37
Is the magnitude greater than the threshold of hearing
Yes Yes
Level Change from Preceding 1/3 Octave Band, dB Leq
38 31
Level Change from Following 1/3 Octave Band, dB Leq
34 34
Are the level changes both greater than or equal to the relevant frequency constant?
No No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 52 of 82
NSL2, A
0
10
20
30
40
50
60
20H
z
31.5
Hz
50H
z
80H
z
125H
z
200H
z
315H
z
500H
z
800H
z
1250H
z
2000H
z
3150H
z
5000H
z
8000H
z
12500H
z
Frequency
LL
eq
LLeq
Tonal Analysis NSL2,A – Daytime – 12:09
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 53 of 82
N SL2 , B
0
10
20
30
40
50
60
Fr equency
LLeq
Tonal Analysis NSL2,B – Daytime – 12:42
Suspected 1/3 Octave Band Frequency of Tone Hz
125
Magnitude of Tone dB Leq 45
Is the magnitude greater than the threshold of hearing
No
Level Change from Preceding 1/3 Octave Band, dB Leq
3
Level Change from Following 1/3 Octave Band, dB Leq
4
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 54 of 82
NSL2, C
0
10
20
30
40
50
60
Fr e que nc y
LLeq
Tonal Analysis NSL2,C – Daytime – 13:13
Suspected 1/3 Octave Band Frequency of Tone Hz
N/A
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
No Tone Present
Conclusion N/A
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 55 of 82
NSL2, D
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL2, D – Evening Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
34
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 56 of 82
NSL2, E
0
10
20
30
40
50
60
70
80
90
F requency
LLeq
Tonal Analysis NSL2, E – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
100
Magnitude of Tone dB Leq 74
Is the magnitude greater than the threshold of hearing
Yes
Level Change from Preceding 1/3 Octave Band, dB Leq
68
Level Change from Following 1/3 Octave Band, dB Leq
68
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 57 of 82
NSL2, F
0
10
20
30
40
50
60
F requency
LLeq
Tonal Analysis NSL2, F – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 58 of 82
NSL3, A
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL3, A – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 59 of 82
NSL3, B
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL3, B – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 60 of 82
NSL3, C
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL3, C – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
25
Magnitude of Tone dB Leq 54
Is the magnitude greater than the threshold of hearing
No
Level Change from Preceding 1/3 Octave Band, dB Leq
51
Level Change from Following 1/3 Octave Band, dB Leq
51
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 61 of 82
NSL3, D
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL3, D – Evening Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 62 of 82
NSL3, E
0
10
20
30
40
50
60
70
80
90
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL3, E – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 63 of 82
NSL3, F
0
5
10
15
20
25
30
35
40
45
50
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL3, F – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
100
Magnitude of Tone dB Leq 45
Is the magnitude greater than the threshold of hearing
Yes
Level Change from Preceding 1/3 Octave Band, dB Leq
41
Level Change from Following 1/3 Octave Band, dB Leq
40
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 64 of 82
NSL4, A
0
10
20
30
40
50
60
Fr e que nc y
LLeq
Tonal Analysis NSL4, A – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 65 of 82
NSL4, B
0
10
20
30
40
50
60
70
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL4, B – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 66 of 82
NSL4, C
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL4, C – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
50
Magnitude of Tone dB Leq 56
Is the magnitude greater than the threshold of hearing
Yes
Level Change from Preceding 1/3 Octave Band, dB Leq
52
Level Change from Following 1/3 Octave Band, dB Leq
53
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 67 of 82
NSL4, D
0
10
20
30
40
50
60
70
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL4, D – Evening Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 68 of 82
NSL4, E
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Fr e que nc y
LLeq
Tonal Analysis NSL4, E – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 69 of 82
NSL4, F
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL4, F – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 70 of 82
NSL5, A
0
20
40
60
80
100
120
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL5, A – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
63
Magnitude of Tone dB Leq 80
Is the magnitude greater than the threshold of hearing
Yes
Level Change from Preceding 1/3 Octave Band, dB Leq
71
Level Change from Following 1/3 Octave Band, dB Leq
76
Are the level changes both greater than or equal to the relevant frequency constant?
no
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 71 of 82
NSL5, B
0
10
20
30
40
50
60
70
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL5, B – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 72 of 82
NSL5, C
0
10
20
30
40
50
60
70
80
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL5, C – Day Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 73 of 82
NSL5, D
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL5, D – Evening Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 74 of 82
NSL5, E
0
10
20
30
40
50
60
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL5, E – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
None
Magnitude of Tone dB Leq N/A
Is the magnitude greater than the threshold of hearing
N/A
Level Change from Preceding 1/3 Octave Band, dB Leq
N/A
Level Change from Following 1/3 Octave Band, dB Leq
N/A
Are the level changes both greater than or equal to the relevant frequency constant?
N/A
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 75 of 82
NSL5, F
0
10
20
30
40
50
60
70
80
90
20Hz
31.5
Hz
50Hz
80Hz
125H
z
200H
z
315H
z
500H
z
800H
z
1250
Hz
2000
Hz
3150
Hz
5000
Hz
8000
Hz
1250
0Hz
Frequency
LL
eq
LLeq
Tonal Analysis NSL5, F – Night Time
Suspected 1/3 Octave Band Frequency of Tone Hz
100
Magnitude of Tone dB Leq 73
Is the magnitude greater than the threshold of hearing
Yes
Level Change from Preceding 1/3 Octave Band, dB Leq
69
Level Change from Following 1/3 Octave Band, dB Leq
68
Are the level changes both greater than or equal to the relevant frequency constant?
No
Conclusion No Tone Present
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 76 of 82
APPENDIX D
ISO-CONTOUR PLOTS
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 77 of 82
Figure 2: Daytime Contour Plots
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 78 of 82
Figure 3: Evening Contour Plots
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 79 of 82
Figure 4: Night-time Contour Plots
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 80 of 82
APPENDIX E
MODEL SOURCES SOUND POWER DATA
Glanbia Doc No IE0310818-22-RP-0003 Issue A Project Purple 2 05 July 2012
IE0310818-22-RP-0003_A_05.DOC Page 81 of 82
Milk intake pumps x 6 Dist. 3m Item
Description 63 125 250 500 1000 2000 4000 8000 Total
Sound Pressure Level (dBA) 71.0 71.0 71.0 71.0 71.0 71.0 71.0 71.0 80.0
Sound Power Level (dBA) 88.5 88.5 88.5 88.5 88.5 88.5 88.5 88.5 97.6
Miscellaneous intake pumps x 7
Dist. 3m Item
Description 63 125 250 500 1000 2000 4000 8000 Total
Sound Pressure Level (dBA) 71.0 71.0 71.0 71.0 71.0 71.0 71.0 71.0 80.0
Sound Power Level (dBA) 88.5 88.5 88.5 88.5 88.5 88.5 88.5 88.5 97.6
Vegetable oil pump x 1 Dist. 3m Item
Description 63 125 250 500 1000 2000 4000 8000 Total
Sound Pressure Level (dBA) 71.0 71.0 71.0 71.0 71.0 71.0 71.0 71.0 80.0
Sound Power Level (dBA) 88.5 88.5 88.5 88.5 88.5 88.5 88.5 88.5 97.6
HGV x 6 Dist. 7m Item
Description 63 125 250 500 1000 2000 4000 8000 Total
Sound Pressure Level (dBA) 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 67.8
Sound Power Level (dBA) 83.7 83.7 83.7 83.7 83.7 83.7 83.7 83.7 92.7
Drier stacks x 2
Description 63 125 250 500 1000 2000 4000 8000 Total
Sound Power Level (dB) 82.0 82.0 82.0 82.0 82.0 82.0 82.0 82.0 91.0
Conversion -26.2 -16.1 -8.6 -3.2 0 1.2 1 -1.1
Sound Power Level (dBA) 55.8 65.9 73.4 78.8 82 83.2 83 80.9 89.0
Condensers x 3
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IE0310818-22-RP-0003_A_05.DOC Page 82 of 82
Description 63 125 250 500 1000 2000 4000 8000 Total
Sound Power Level (dB) 104.0 101.0 101.0 99.0 95.0 89.0 83.0 77.0 108.0
Conversion -26.2 -16.1 -8.6 -3.2 0 1.2 1 -1.1
Sound Power Level (dBA) 77.8 84.9 92.4 95.8 95 90.2 84 75.9 100.2
Cooling towers x3
Description 63 125 250 500 1000 2000 4000 8000 Total
Sound Power Level (dB) 95.0 94.0 93.0 88.0 87.0 82.0 78.0 73.0 99.6
Conversion -26.2 -16.1 -8.6 -3.2 0 1.2 1 -1.1
Sound Power Level (dBA) 68.8 77.9 84.4 84.8 87 83.2 79 71.9 91.6
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