For the Attention of: Mr. Gabriel McCann
Proctor & Gamble (Manufacturing),
Green Road,
Newbridge,
Co. Kildare.
Prepared by: Mr. Peter Coogan
Acoustic Consultant (IOA)
Reviewed by: Mr. Stephen Stapleton
Environmental Scientist
Report No: ECS5209 revision 1
Monitoring Date: 22nd November & 8th / 9th December 2015
Repeat Monitoring Date: 1st & 2nd February 2016
Report Date: 6th January 2016
Revised Report Date: 11th February 2016
This report shall not be reproduced except in full, without the approval of BnM Environmental.
_______________________________________________________________________________________________________
Bord na Móna Environmental Ltd
Registered Office: Main Street, Newbridge, Co Kildare, Ireland. Registered No: 303312, VAT No: IE6323313B
AN ENVIRONMENTAL NOISE MONITORING
ASSESSMENT ON BEHALF OF PROCTOR &
GAMBLE (MANUFACTURING) IRELAND LTD.,
GREEN ROAD, NEWBRIDGE, CO. KILDARE.
IPPC LICENCE NO. P0297-02
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EXECUTIVE SUMMARY
BnM Environmental was commissioned by Mr. Gabriel McCann of Proctor & Gamble (Manufacturing)
Ireland Ltd, in relation to carrying out an environmental noise assessment within the vicinity of the
Newbridge facility in compliance with the requirements of their IPPC Licence (P0297-02).
Triplicate daytime and duplicate night-time noise monitoring was conducted at four boundary locations
and three noise sensitive locations for 15 minute intervals, during the 22nd November & 8th / 9th
December 2015. On Review of the exceedances reported and following engineering remedial works to
the VS-2 dust extraction unit, repeat daytime noise monitoring was completed on the 1st and 2nd
February at the AN2-A and AN3A monitoring locations. The acoustic assessment and report are in
accordance with International Standard Organisation (ISO) 1996 Acoustics –Part 1, 2, and 3 in
addition to the Environmental Protection Agency 2012, “Guidance note for Noise: Licence
Applications, Surveys and Assessments in Relation to Scheduled Activities (NG4) 2016”.
Figure 1, presents the SPL for each NSL due to site activity during day/night time monitoring events.
Figure 1. Summary of site specific noise levels at the nearest NSL’s,
Condition 8.3 of IPPC Licence P0297-02 states that ‘’Activities on-site shall not give rise to noise levels
off-site, at noise sensitive locations, which exceed the following sound pressure limits (Leq,15
minutes) subject to Condition 3 of this licence:
8.3.1 Daytime: 55 dB(A)
8.3.2 Night-time: 45 dB(A).’’
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Condition 3.4.1 ‘’Noise from the activity shall not give rise to sound pressure levels (Leq,15 minutes)
measured at the specified noise sensitive locations which exceed the limit value(s) by more than 2
dB(A).’’
DAY-TIME
Daytime noise measurements ranged from 57 – 68 dB(A) while background/Specific noise levels
ranged from 56 – 65 dB(A).
The specific noise levels at all noise sensitive locations exceeded the respective Licence limits for day-
time noise. The dominant source of noise was attributed to heavy road traffic on the Adjacent M7
motorway and contributed largely to noise levels. The wind on the day was from a west/south-westerly
direction meaning the road traffic was more audible downwind at the P&G facility on the day of
measurement. The noise of road traffic tyres traveling on wet roads additionally contributed to
increased noise levels.
There was no clear tonal or impulsive component due to site activity present at any of the noise
sensitive locations.
Following a review of the above results, an additional noise survey was completed in February 2016 at
the AN2A and AN3A noise sensitive locations following engineering remedial works on the VS-2 dust
extraction unit, the following reductions in were noted:
December AN2A 61- 63 dB(A) → February repeat measurements AN2A 55dB(A) on all 3 occasions
December AN3A 65- 68 dB(A) → February repeat measurements AN3A 64- 65dB(A).
NIGHT-TIME
The specific noise levels at all noise sensitive locations AN1A and AN2A do not exceed the respective
Licence limits for night-time noise, subject to Condition 3.4.1. The specific noise level at noise
sensitive locations AN3A was found to be 58/59dB(A) which exceeds license limits.
The second extrapolated value of AN3A was 56/57 dB(A) which does not exceed the respective
Licence limits for night-time noise, subject to Condition 3.4.1
Dominant sources of noise at night included traffic on the M7 motorway while during quite period of
low background traffic, dust extraction fans on the southern facade at AN3A were dominant.
In summary noise levels at the P&G facility are dominated by road traffic on the M7 motorway however
during periods of low background traffic noise, extractions fans on the south facing façade dominate
noise levels at ANA3.
The wind on the day was from a west/south-westerly direction meaning the road traffic was more
audible downwind at the P&G facility on the day of measurement. The noise of road traffic tyres
traveling on wet roads additionally contributed to increased noise levels.
Respectively Submitted,
________________________
Mr. Peter Coogan
Acoustic Consultant (IOA)
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TABLE OF CONTENTS
Page Number
1.0 INTRODUCTION 5
2.0 NOISE CRITERIA 6
3.0 METHODOLOGY 6
3.1 MEASUREMENT PARAMETERS 6
3.2 TONAL & IMPULSIVE CHARACHTERISTICS 7
3.3 STANDARDS & GUIDANCE 7
3.4 SITE INFORMATION 7
3.5 MEASUREMENT PERIOD 8
4.0 INSTRUMENTATION/EQUIPMENT USED 9
5.0 RESULTS & DISCUSSION 10
5.1 SITE BOUNDARY RESULTS 12
5.1.1 SITE BOUNDARY DISCUSSION 14
5.2 NOISE SENSITIVE LOCATION RESULTS 18
5.2.1 NOISE SENSITIVE LOCATION DISCUSSION 20
5.2.2 PREDICTED SPL AT THE NEAREST NSL’S 23
5.3 TONAL NOISE ASSESSMENT 26
5.4 ASSESSMENT OF ON-SITE NOISE SOURCES 26
Appendix I Map of all Noise Monitoring Locations
Appendix II Noise Meter Calibration Certificates
Appendix III Frequency Spectra at Noise Measurement Locations AN1 – AN3
Appendix IV Checklist as per NG4
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1.0 INTRODUCTION
The Newbridge based Proctor & Gamble (Manufacturing) Ireland Ltd, facility is licensed by the
Environmental Protection Agency (EPA) under Integrated Pollution Prevention and Control
(IPPC) number PO297-02. The site is located approximately 2.2km directly South of
Newbridge town centre, within the IDA Industrial estate (see Figure 1).
Figure 1 – Location of P&G facility
The facility is bounded by agricultural lands to the East, Industrial to the North, residential to
the West. The Southern perimeter of the facility partially bounds the M7 motorway.
In compliance with IPPC Licence P0297-02, P&G are required to conduct annual noise
monitoring at the site for submission to the agency as part of their Annual Environmental
Review (AER).
BnM Environmental was commissioned to conduct the annual noise survey. An Acoustic
Consultant from BnM Environmental subsequently visited the site on the 22nd November & 8th /
9th December 2015 to conduct the 2015 noise monitoring event. Repeat measurement were
completed on the 1st and 2nd February following improvements and remedial works to the VS-2
dust extraction unit. The survey consisted of measurements representative of noise levels at
four boundary locations and at 3 on-site locations to best represent sound emissions to the
nearest noise sensitive locations by day and by night.
This report details the sampling and analytical methodologies employed and also includes a
broad interpretation of the results obtained.
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2.0 NOISE CRITERIA
In compliance with the requirements of Condition 9 (Noise) of IPPC Licence P0297-02,
Proctor & Gamble (Manufacturing) Ireland Ltd is obliged to;
Condition 8.1 - The licensee shall carry out a noise survey of the site operations annually
Condition 8.3 - Activities on-site shall not give rise to noise levels off-site, at noise sensitive
locations, which exceed the following sound pressure limits (Leq,15 minutes) subject to
Condition 3 of this licence:
8.3.1 Daytime:Until 2nd May 2000: 60 dB(A)
Thereafter: 55 dB(A)
8.3.2 Night-time:Until 2nd May 2000: 50 dB(A)
Thereafter: 45 dB(A)
Condition 8.4 - There shall be no clearly audible tonal component or impulsive component in
the noise emission from the activity at any noise sensitive location.
3.4 Noise
3.4.1 Noise from the activity shall not give rise to sound pressure levels (Leq,15 minutes)
measured at the specified noise sensitive locations which exceed the limit value(s) by more
than 2 dB(A).
The survey should be undertaken in accordance with the methodology specified in the
‘‘Environmental Noise Survey guidance Document’’ as published by the Agency’’.
3.0 METHODOLOGY
3.1 Measurement Parameters
3.1.1 LAeq Values
LAeq (t) values represent the continuous equivalent sound level over a specified time (t) in the
A weighted scale. This value expresses the average levels over time and is a linear integral.
3.1.2 LAMax Values
The maximum RMS, A-Weighted sound pressure level occurring within a specified time
period.
3.1.3 LA90 and LA10 Values
The LA90 and LA10 values represent the A-weighted sound levels exceeded for a percentage
of the instrument measuring time. LA10 indicates that for 10% of the monitoring period, the
sound levels were greater than the quoted value. LA10 is a good statistical parameter for
expressing event noise such as passing traffic. The LA90 represents post event sound levels
and is a good indicator of background noise levels.
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3.2 Tonal and Impulsive Characteristics
For the purpose of this report, tonal noise is characterised in accordance with Section 5.1 of
the EPA’s NG4 document, which indicates that a noise source is tonal if a 1/3 octave band
exceeds adjacent bands by;
· 15dB in low/frequency 1/3 octave bands (25Hz to 125Hz);
· 8dB in middle/frequency bands (160Hz to 400Hz), and;
· 5dB in high/frequency bands (500Hz to 10,000Hz).
An impulsive noise is of short duration (typically less than one second), it is brief and abrupt,
its’ startling effect causes greater annoyance than would be expected from a simple
measurement of sound pressure level. For example an instantaneous bang/thud that maybe
associated with pile driving, hammering etc.
3.3 Standards and Guidance
The acoustic assessment and subsequent report are in accordance with International
Standard Organisation (ISO) 1996 Acoustics – Description and Measurement of
Environmental Noise Part 1, 2, and 3, in addition to the Environmental Protection Agency
Environmental Noise Survey Guidance Document Revision 4 (NG4) 2016.
3.4 Site information
2.4.1 All measurements were taken at 1.2 -1.5 m height above local ground level and at least 3.5m
away from reflective surfaces other than the ground.
3.4.2 The weather was dry and calm, with a wind-speed of <5ms/sec at the time of the assessment.
3.4.3 Table 2.1 describes the locations of the monitoring positions for the noise survey.
3.4.4 Triplicate noise measurements were obtained at each sampling location during daytime hours
and duplicate measurements during night-time hours, for a minimum time period of 15
minutes, in accordance with the EPA Noise Guidance 4 document
3.4.5 Sampling Locations are presented in Table 3.1 overleaf (Please refer to map included in
Appendix I).
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TABLE 3.1 : LOCATION OF NOISE MONITORING MEASUREMENTS
Map Ref
No.
Location
Type
Grid Ref.
Irish Grid Location
BN1 Boundary IN 80157 IG 13234
Eastern corner, behind facility car-park.
BN2 Boundary IN 80111 IG 13118
South-East corner of site, along raised grass embankment
BN3 Boundary IN 79829 IG 13282
Western corner, along raised grass embankment.
BN4 Boundary IN 79889 IG 13377
North-West corner, within car-park.
AN1A Noise
Sensitive IN 79849 IG 13306
27 Meters from residential dwelling along North-West boundary.
AN2A Noise
Sensitive IN 79846 IG 13265
18 Meters from residential dwelling within Grange Heights, along South-West Boundary
AN3A Noise
Sensitive IN 79947 IG 13190
Located along grass embankment on Southern boundary to represent emissions to residents at Grange View (20m)
Note 1 – The grid coordinates of each monitoring station was logged with a handheld Garmin GPS 60.
The units of measurement are Irish Grid (IG).
3.5 Measurement Period
Daytime noise measurements were conducted at each boundary and noise sensitive location
over a one day period. Measurements were conducted on the 22nd November (11am – 7pm).
Each location was monitored in triplicate (15mins each).
The night-time noise measurements were conducted between the hours of 11pm on the 8th
December and 3.30am on the 9th December. Each location was monitored in duplicate
(15mins each). In addition to this night time measurements were taken when the plant was in
shutdown on the 8/9th December.
Repeat measurements were taken on the 1st and 2nd of February 2016.
Measurements were conducted on a rotational basis around the site in order to achieve
representative results.
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4.0 INSTRUMENTATION EQUIPMENT USED
The following equipment was employed during the acoustic assessments on the 22nd November,
8th/9th of December 2015 and 1st/2nd February 2016.
Bruel & Kjaer Real-Time Noise Analyzer Type 2250-Light
Model No: 2250-Light
Serial No. 3000428
Certificate and Calibration:
18th November 2014
Calibrator Type: B&K 4231
Serial No: 2415925
Date of Certificate and Calibration:
8th December 2015
On Site Calibration.
Calibration level = 94 dB(A)
Each instrument was calibrated to 94 dB (A) immediately before sampling and was subsequently
checked after the measurement periods with no drift in calibration level noted.
A handheld Garmin GPS60 was used to record the grid coordinated of each environmental noise
monitoring location.
A handheld anemometer (Kestrel 2500) was used to take on-site weather measurements on the
day of monitoring.
Certified current annual calibration certificates are provided in Appendix 2.
Note: The monitoring equipment was manned throughout the sampling period and
comments/notes taken to assist the interpretation and assessment of results.
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5.0 RESULTS AND DISCUSSION
Table 5.1: Weather data taken from Met Éireann station, i.e. Casement.
Table 5.2: On–Site Weather Data Recordings / Observations
Table 5.3: Site Boundary Noise Monitoring Results – Daytime.
Table 5.4: Site Boundary Noise Monitoring Results – Night-time.
Table 5.5: Noise Sensitive Location Monitoring Results – Daytime.
Table 5.6: Noise Sensitive Location Monitoring Results – Night-time.
Weather Conditions: Met Eireann Data
Table 4.3 below; details the weather conditions on the day/night of monitoring from the nearest
Met Éireann station in Casement.
Weather Conditions: Site Data
Table 4.3 below; details the on-site weather conditions observed/recorded on the day/night of the
monitoring events.
TABLE 5.2: WEATHER CONDITIONS ONSITE
Date Rainfall
(mm)
Mean.
Temp 0C Note 1
Mean Wind Speed
(m/sec)
Wind
direction
Pressure
(mbar) Note 1
22/12/2015
(11:53)
Occasional
rain fall 6.9 0.8 From
W/SW 1013
8/12/15
(23:00)
Occasional
rain fall 9.0 4.4 average
From W/SW
1009.8
01/02/16 None 8 1.2 From NW 1002
02/02/16 None 6 2.4 From NW 1002.5
Note 1: Wind speed, temperature and pressure measurements taken with a calibrated Kestrel
2500 30mm Vane Anemometer (I.D. TS-K-01).
An environmental noise monitoring consultant from BnM Environmental visited the P&G
Newbridge site for the purpose of conducting the annual day and night time, noise monitoring
assessments. Monitoring was conducted in accordance with Licence Register No. P0297-02
issued by the Environmental Protection Agency (EPA).
TABLE 5.1: MET EIREANN WEATHER DATA CASEMENT
Date Period Rainfall
(mm)
Max. Temp 0C
Min. Temp 0C
Mean Wind
Speed (m/sec)
22/11/2015 Daytime 0.1 8 -1.2 2.57
08/12/2015
9/12/2015
Day/Night
1.5 12.5 4 5.22
1/02/16 Daytime
Repeat
1.1 12.3 5.3 3.2
2/02/16 1.3 7.3 1.7 4.5
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In addition to the weather data presented in Table 4.1, on site weather measurements were also
taken on-site using a portable hand-held Kestrel 2500 30mm Vane Anemometer. It was noted
that the average wind speed was low (<5m/sec) and suitable for noise monitoring for the duration
of the noise monitoring assessment.
Noise monitoring was conducted in accordance with International Standard Organisation (ISO)
1996 Acoustics – Description and Measurement of Environmental Noise Part 1, 2, and 3 in
addition to the Environmental Protection Agency Environmental Noise Survey Guidance
Document (NG4) at each of the four boundary locations (BN1-BN4) and three Noise Sensitive
Locations (AN1A-AN3A).
Section 7.8 of the EPA’s NG4 document describes methods for estimating the specific noise level
(LART). For the purposes of this report this report the following approach was adopted to determine
the site specific noise;
Boundary Location
The CRTN method for assessing road traffic describes the L10 value as being most representative
value for road traffic noise, which has since become the ‘de facto’ measurement index for
describing road traffic noise. Considering that the road traffic was the dominant source (LA10
values) it is therefore reasonable to assume that the residual noise was due to operations within
the P&G facility (LA90 values) and may therefore be referred to as the specific noise.
Noise Sensitive Locations
The NG4 document states that ‘‘…for facilities that operate continuously for 24 hours, it may be
appropriate to measure at a time when all (or most) other noises have subsided. This will often
mean measuring late at night when general traffic noise has reduced. Where noise output from
the facility can be temporarily eliminated or subdued, it may be possible to estimate the facility’s
specific noise level by measuring the noise level with and without the facility running’’.
This method was adopted to determine the specific noise at these locations. All noise sources
were shut down at the facility for 1 hour to determine the residual noise at these locations.
Specific Noise = Ambient Noise – Residual Noise
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5.1 SITE BOUNDARY RESULTS
Table 5.3 presents the results of the noise monitoring survey carried out at the Proctor & Gamble (Manufacturing) Ireland Ltd. facility during normal day time
activities.
TABLE 5.3: BOUNDARY MEASUREMENT RESULTS (DAY TIME)
Location
No.
Duration
(mins.)
Start
Time
LAeq
dB(A)
LA10
dB(A)
LA90
dB(A)
LAFMax
dB(A)
Specific
Noise
dB(A) 1
Comments / Site Observations Summary
BN1 15
12:13 63 65 62 69 62 Site: Continuous low level hum from fans @ eastern gable end of facility.
Occasional traffic movement about site.
Background: Low level hum from neighbouring facility to the north west
(120m approx). Road traffic on M7 continuously audible in the distance
and dominant.
13:57 65 66 62 70 62
16:06 65 66 63 70 63
BN2 15
14:19 68 69 66 72 66 Site: Continuous low level hum from air extraction fan. Whining noise
from dust extraction unit on southern facade of building (approx. 50
meter).
Background: Road traffic on M7 dominant.
15:26 66 67 64 75 64
15:42 69 70 67 73 67
BN3 15
10:10 60 62 59 69 59 Site: Continuous low level hum from dust extraction and boiler room (40-
100m approx.). Occasional traffic movement in nearby car-park (30-50m
approx.)
Background: Road traffic on M7 dominant throughout measurement. Bird
Singing.
11:00 61 62 59 68 59
16:49 63 64 61 71 61
BN4 15
09:54 60 61 58 76 58 Site: Occasional passing site traffic on IDA entrance Rd.(20m) + traffic
entering/exiting car-park (15m).
Background: Continuous faint hum (chiller units) from neighbouring
facility (Lilly O’Briens) and occasional FLT reversing alarms & rattling
pallet forks. Banging of shipping containers. LAFmax during round 2 due
to the bang of a shipping container as truck passed over speed ramp on
IDA entrance road. Road traffic continuously audible in the distance.
Occasional birdsong.
11:53 61 62 58 89 58
13:40 61 62 59 78 59
Note 1 - Specific noise component attributable to the licensed site. Based upon L90 value. This is worst case scenario as L90 would have been influenced by road traffic on the M7 which was continuously audible in the distance (See page 11).
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Table 5.4 presents the results of the noise monitoring survey carried out at the Proctor & Gamble (Manufacturing) Ireland Ltd. facility during normal night-time
activities.
TABLE 5.4: BOUNDARY MEASUREMENT RESULTS (NIGHT-TIME)
Location
No.
Duration
(mins.)
Start
Time
LAeq
dB(A)
LA10
dB(A)
LA90
dB(A)
LAFMax
dB(A)
Specific
Noise
dB(A) 1
Comments / Site Observations Summary
BN1 15
23:54 58 60 53 67 53 Site: Continuous low level hum from air extraction fans @ eastern
gable end of facility - dominant.
Background: Continuous hum from neighbouring facility to the
north (120m approx). Road traffic occasionally audible in the
distance. 01:16 56 59 52 69 52
BN2 15
00:12 64 66 61 70 61 Site: Continuous low level hum from air extraction fan continuously
audible. Whining noise form dust extraction unit on south facing
façade - dominant.
Background: Continuous passing road traffic on M7 audible and dominant at times.
00:57 63 64 61 70 61
BN3 15
01:49 55 57 53 68 53 Site: Continuous low level hum from dust extraction (100m
approx.) and boiler house (approx. 40metrs)
Background: Passing road traffic on M7 dominant throughout
measurement. 02:22 56 58 53 65 53
BN4 15
02:39 53 55 50 62 50
Site: Occasional passing site traffic on IDA entrance Rd.(20m).
Low level hum of activity faintly audible during periods of low
background noise.
Background:. Low level road traffic noise, continuously audible in the distance. Low level chiller fans in neighbouring facility (Lilly O’Briens)
02:53 53 54 50 78 50
Note 1 - Specific noise component attributable to the licensed site. Based upon L90 value. This is worst case scenario as L90 would have been influenced by road traffic on the M7 which was continuously audible in the distance (See page 11).
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5.1.1 SITE BOUNDARY DISCUSSION
BN1
Monitoring station BN1 is at the Eastern corner of the facility, just behind the car-park. This
location has a clear view of the facility and associated auxiliary equipment along the Eastern
gable of the main building (see Plate 1)
.
Plate 1 – BN1
As can be seen from Tables 5.3 and 5.4, the resultant SPL’s were 63/65 dB(A) daytime and
56/58dB(A) night-time. On site field notes showed that a continuous hum from a facility located
approximately 120 meters north of BN1 was audible, however road traffic on the M7 motorway
was continuous and dominant. Audible on-site activity included; continuous low level noise from
air extraction fans on the eastern gable end of the main building (110m approx.) and occasional
movement of on-site traffic.
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BN2
Monitoring location BN2 is located along a raised grass embankment at the Southern corner of
the P&G facility. This monitoring station has a partial view of the P&G facility (seen Plate 2).
Plate 2 – BN2
As can be seen from Tables 5.3 and 5.4, the resultant SPL’s ranged from 66-69 dB(A) during the
daytime and 63/64 dB(A) during the night-time hours. On site field notes showed that passing
traffic on the M7 motorway was the dominant noise source during the day/night time monitoring.
The only source of on-site noise was due to the air extraction fans, which were occasionally faintly
audible during the daytime events and occasionally audible during the night –time events. The
whining from the dust extraction fans was clearly audible.
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BN3
Monitoring location BN3 is located along a raised grass embankment, at the Western corner of
the facility (see Plate 3).
Plate 3 – BN3
As can be seen from Tables 5.3 and 5.4, the resultant SPL’s for day-time noise ranged from 60-
63 dB(A) during the daytime and 55/56 dB(A) during the night-time hours. On site field notes
showed that passing traffic on the M7 motorway was the dominant noise source during the
day/night time monitoring events.
The only source of on-site noise was a continuous low level hum from the dust extractor (100m
approx.) and boiler house (40m) which was audible during the day and night time events during
periods of low passing traffic on the M7.
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BN4
Monitoring location BN4 is located within the North-West car-park, in front of fire assembly point A
(see Plate 4 below).
Plate 4 – BN4
As can be seen from Tables 5.3 and 5.4, the resultant SPL’s for day-time noise ranged from 60-
61 dB(A. The night-time SPL’s were 53 dB(A) respectively. On site field notes showed that
passing traffic on the IDA entrance Rd. (20m) and passing traffic on the Green Road were the
dominant sources of noise during the day-time monitoring event and included the banging of
trucks/shipping containers passing over speed ramps. During the night-time monitoring event the
dominant source of noise was due to road traffic on the M7 (low level), Green road and IDA
Industrial estate entrance. Audible site activity included occasional traffic entering/exiting the
facility car-park, and site traffic passing on the IDA Industrial estate entrance/exit road.
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5.2 NOISE SENSITIVE LOCATION RESULTS
Table 5.5 presents the results of the noise monitoring survey carried out at the Proctor & Gamble (Manufacturing) Ireland Ltd. facility during normal day time
activities.
TABLE 5.5: NOISE SENSITIVELOCATION RESULTS (DAY TIME)
Location
No.
Duration
(mins.) Start Time
LAeq
dB(A)
LA10
dB(A)
LA90
dB(A)
LAFMax
dB(A)
Specific
Noise
dB(A) 1
Predicted
SPL to
nearest NSL
dB(A) 2
Comments / Site Observations Summary
AN1A 15
10:27 58 58 56 78 <56 <52 Site: Continuous low level hum from nearby condenser unit.
Background: Road traffic on M7 continuously audible in the
distance (dominant). Occasional dog barking audible in the
distance.
11:35 57 58 56 66 <56 <52
16:33 59 60 58 76 <58 <54
AN2A 15
10:44 60 61 58 71 <58 <55 Site: Continuous low level hum of activity, audible during periods of low background noise (Rd. traffic). Background: Road traffic on M7 continuously audible and dominant. Occasional bird singing.
11:18 61 62 59 66 <59 <56
17:06 63 65 62 69 <62 <59
AN2A
Repeated 15
14:55 1/2/16 55 56 53 75 <53 <50 Site: Continuous low level hum of activity, audible during periods of low background noise (Rd. traffic). Background: Road traffic on M7 continuously audible and
dominant.
15:50 1/2/16 55 57 54 63 <54 <51
11:55 2/2/16 55 56 54 60 <54 <51
AN3A 15
14:37 68 70 65 73 <65 <60 Site: Dust extractor fans – continuous and clearly audible.
Hissing from compressed air lines.
Background: Continuous heavy traffic on M7- dominant.
Helicopter over head during round 3.
14:53 65 66 64 70 <64 <59
15:09 66 67 64 75 <64 <59
AN3A
Repeated 15
15:10 1/2/16 65 66 63 70 <63 <58 Site: Dust extractor fans – continuous and audible at times.
No tonal noise detected.
Background: Passing road traffic on M7 - dominant.
11:39 2/2/16 64 66 62 71 <62 <55
11:15 2/2/16 64 65 62 69 <62 <55
Note 1 - Specific noise component attributable to the licensed site. Based upon L90 value. This is worst case scenario as L90 would have been influenced by road traffic on the M7 which was continuously audible in the distance (See page 11).
Note 2 - Calculated noise level at the nearest NSL (see Section 5.2.2 on page 23 of this report for calculation methodology)
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Table 5.6 presents the results of the noise monitoring survey carried out at the Proctor & Gamble (Manufacturing) Ireland Ltd. facility during normal night-time
activities.
TABLE 5.6: NOISE SENSITIVELOCATION RESULTS (NIGHT-TIME)
Location
No.
Duration
(mins.)
Start
Time
LAeq
dB(A)
LA10
dB(A)
LA90
dB(A)
LAFMax
dB(A)
Specific
Noise
dB(A) 1
Predicted SPL to
nearest NSL
dB(A) 2
Comments / Site Observations Summary
AN1A 15
22:58 57 58 51 74 Measurement during plant shut-down – M7 Rd. traffic dominant & dog barking in
nearest dwelling
01:32 56 56 54 72 493 45
Site: Very faint hum of operations audible.
Continuous low level hum from nearby condenser
unit and boiler house.
Background: Road traffic continuously audible in
the distance (dominant). Dog barking in nearest
dwelling
03:10 55 57 54 68 483 44
AN2A 15
23:17 58 60 55 66 Measurement during plant shut-down – M7 Rd. traffic dominant
02:05 55 57 53 65 483 45 Site: Continuous low level hum of activity, audible during periods of low background noise (Rd. traffic). Background: Road traffic on M7 continuously audible and dominant.
03:27 55 57 51 64 483 45
AN3A 15
23:33 56 58 53 65 Measurement during plant shut-down – M7 Rd. traffic dominant & dog barking in
nearest dwelling
00:28 61 63 58 69 59 54
Site: Dust extractor fans – continuous and
dominant during periods of low passing traffic.
Whining noise form dust extraction unit on south
facing façade – No tonal noise detected.
Background: Passing road traffic on M7 -
occasionally dominant. Dog barking in nearest
dwelling.
00:42 60 62 58 63 58 53
Note 1 - Specific noise component attributable to the licensed site. Calculated by subtracting the residual noise from the ambient noise (See page 11). Note 2 - Calculated noise level at the nearest NSL (see Section 5.2.2 on page 23 of this report for calculation methodology)
Note 3 – Ambient noise is less than background noise, Therefore the Specific Noise must be at least 7dB(A) less than the Ambient noise.
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4.2.1 NOISE SENSITIVE LOCATION DISCUSSION
AN1A (27 Meters from residential dwelling along North-West boundary)
Monitoring station AN1A is located along the North-West boundary, beside the air cooled
condenser units. This location was chosen to best represent sound emissions to an occupied
residential dwelling; situated 27 meters North-West of this monitoring station (see Plate 5).
Plate 5 – AN1A
As can be seen from Tables 5.5 and 5.6, the resultant SPL’s were 57-59dB(A) daytime and 55-56
dB(A) night-time. On site field notes showed that passing traffic on the M7 motorway was the
dominant noise source of on-site noise during the day/night time monitoring events. During the
night time events the condenser unit (10m) and boiler house (40m) were faintly audible. These
were not audible during the day-time event due to ‘masking’ by a wide range of non-
distinguishable extraneous sources.
To determine the predicted sound pressure levels to the nearest NSL, and to determine the
compliance status with IPPC licence P0297-02, please refer to Section 5.2.2 (Predicted SPL at
nearest NSL).
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AN2A
Monitoring location AN2A is located along a raised grass embankment, along the South-West
perimeter the facility (see Plate 6).
Plate 6 – AN2A
This location was chosen to best represent sound emissions to the nearest residential dwelling;
situated approximately 20 meters South-West of this monitoring station, within the Grange Heights
housing estate.
As can be seen from Tables 5.5 and 5.6, the resultant SPL’s for day-time noise ranged from 60-
63 dB(A). The night-time SPL’s recordings were 55 dB(A). On site field notes showed that
passing traffic on the M7 motorway was the dominant noise source during the day/night time
monitoring events. The only source of on-site noise was a continuous low level hum from the dust
extractor and vents which was audible during the day and night time events during periods of low
passing traffic on the M7.
On review of these results, repeat noise monitoring was completed on the 1st and 2nd February
2016 following engineering modifications complete on the dust extraction unit in VS 2.
As can be seen from table 5.5, the resultant SPL’s for day-time noise was consistent at 55 dB(A).
On site field notes showed that passing traffic on the M7 motorway was the dominant noise
source during the day time monitoring events. The only source of on-site noise was a continuous
low level hum from the dust extractor and vents which was audible during the day and night time
events during periods of low passing traffic on the M7.
To determine the predicted sound pressure levels to the nearest NSL, and to determine the
compliance status with IPPC licence P0297-02, please refer to Section 5.2.2 (Predicted SPL at
nearest NSL).
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AN3A (Located along grass embankment on Southern boundary to represent emissions to
residents at Grange View).
Monitoring location AN3A is located along a raised grass embankment, along the Southern
perimeter the facility (see Plate 7).
Plate 7 – AN3A
This location was chosen to best represent sound emissions to the nearest residential dwelling;
situated approximately 20 meters West of this monitoring station, within the Grange View housing
estate.
As can be seen from Tables 5.5 and 5.6, the resultant SPL’s ranged from 65 -68 dB(A) during the
day-time and 60/61 dB(A) during the night-time. On site field notes showed that passing traffic on
the M7 motorway (62m to nearside carriageway) and the continuous hum from the dust extractor
fans (75m) were the dominant sources of noise in both the daytime and night-time monitoring
events.
On review of these results, repeat noise monitoring was completed on the 1st and 2nd February
2016 following engineering modifications complete on the dust extraction unit in VS 2.
As can be seen from table 5.5, the resultant SPL’s for day-time noise ranged from 64 to 65 dB(A).
On site field notes showed that passing traffic on the M7 motorway (62m to nearside carriageway)
was dominant. The dust extraction unit was audible but noise levels realty reduced following
remedial works.
To determine the predicted sound pressure levels to the nearest NSL, and to determine the
compliance status with IPPC licence P0297-02, please refer to Section 5.2.2 (Predicted SPL at
nearest NSL).
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5.2.2 PREDICTED SPL AT THE NEAREST NSL’S
Condition 8.3 of IPC Licence P0297-02 states that ‘’Activities on-site shall not give rise to noise
levels off-site, at noise sensitive locations, which exceed the following sound pressure limits
(Leq,15 minutes) subject to Condition 3 of this licence:
8.3.1 Daytime: 55 dB(A)
8.3.2 Night-time: 45 dB(A).’’
Condition 3.4.1 ‘’Noise from the activity shall not give rise to sound pressure levels (Leq,15
minutes) measured at the specified noise sensitive locations which exceed the limit value(s) by
more than 2 dB(A).’’
It order to establish compliance with these conditions, the following approach has been employed;
Step 1 – Establish ambient SPL on site at 3 on-site locations (AN1A-AN3A) during typical daytime
and night-time hours.
Step 2 – Establish the residual SPL on site at 3 onsite locations (AN1A-AN3A) during typical daytime
and night-time hours when the all noise sources within the P&G facility are shut down.
Step 3 – Establish the specific SPL on site at 3 onsite locations (AN1A-AN3A) during typical daytime
and night-time hours by subtracting the residual noise from the ambient noise at each
location. Specific Noise = Ambient Noise – Residual Noise
Step 4 – Use the known specific noise at the 3 on-site locations to extrapolate the SPL at the
nearest noise sensitive locations. The following methodology is employed;
In order to represent the worst case scenario the highest specific noise established for each
location (AN1A - AN3A) during the day/night is taken to be the noise emission exclusively due to
activity within the P&G facility during these times. It is also worth noting that the topography of the
landscape is undulating, with a 7 foot soil berm between the source and receiver. All measurements
were conducted on-top of this soil berm to represent the worst possible scenario (I.e. a direct line of
sight from source to receiver). There is also some soft grassland and some mature deciduous trees
along the site boundary, which are not taken into consideration for the purposes of this calculation.
To predict the noise level at the nearest NSL’s due to activity within P&G, the reference sound
pressure level at known distance (R1) was determined. This reference pressure level at R1 is
then used to determine the SPL at a given distance R2 to represent the SPL at the nearest NSL’s.
Predictions shall be carried out by employing the inverse square law, which is a “rule-of-thumb”
used to calculate the expected reduction in noise levels as one moves away from the source.
Generally, as one doubles the distance from the source, a reduction of 6 dB is expected. Within a
confined space however, this rule does not apply due to reflection, where a diffuse field is set up
at a level higher than that expected from this law.
The Inverse Square law is defined as.
Lp2 = Lp1 - 20 Log (R2/R1) where:
Lp2 is the calculated sound pressure level at R2 meters towards the receiver location
(NSL).
Lp1 is the measured reference sound pressure level at R1 meters from P&G
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AN1A (Where R1 = 72 and R2 = 48)
Daytime – R1 Lp2 = Lp1 - 20 Log (R2/R1) = 56 – 20 Log (72/48) = 52.48 ≈ <52 dB(A).
Daytime – R2 Lp2 = Lp1 - 20 Log (R2/R1) = 56 – 20 Log (72/48) = 52.48 ≈ <52 dB(A).
Daytime – R3 Lp2 = Lp1 - 20 Log (R2/R1) = 58 – 20 Log (72/48) = 54.48 ≈ <54 dB(A).
Night-time Lp2 = Lp1 - 20 Log (R2/R1) = 49 – 20 Log (72/48) = 45.48 ≈ 45 dB(A).
Night-time Lp2 = Lp1 - 20 Log (R2/R1) = 48 – 20 Log (72/48) = 44.48 ≈ 44 dB(A).
The extrapolated SPL for day-time (<52-<54 dB(A)) noise does not exceed the daytime limit of
55dB(A). The night-time noise level at the nearest NSL (<44-<45 dB(A) does not exceed the limit set
out under conditions;
8.3.2 Night-time: 45 dB(A).’’
It is expected it will meet within Condition 3.4.1 ‘’Noise from the activity shall not give rise to sound
pressure levels (Leq,15 minutes) measured at the specified noise sensitive locations which
exceed the limit value(s) by more than 2 dB(A).
Conclusion = Compliant
AN2A (Where R1 = 59 and R2 = 80)
Daytime Lp2 = Lp1 - 20 Log (R2/R1) = 58 – 20 Log (80/59) = 55.36 ≈ <55 dB(A).
Daytime Lp2 = Lp1 - 20 Log (R2/R1) = 59 – 20 Log (80/59) = 56.36 ≈ <56 dB(A).
Daytime Lp2 = Lp1 - 20 Log (R2/R1) = 62 – 20 Log (80/59) = 59.36 ≈ <59 dB(A).
Daytime Repeat Lp2 = Lp1 - 20 Log (R2/R1) = 53 – 20 Log (80/59) = 50.35 ≈ <50 dB(A).
Daytime Repeat Lp2 = Lp1 - 20 Log (R2/R1) = 54 – 20 Log (80/59) = 51.35 ≈ <51 dB(A).
Daytime Repeat Lp2 = Lp1 - 20 Log (R2/R1) = 54 – 20 Log (80/59) = 51.35 ≈ <51 dB(A).
Night-time Lp2 = Lp1 - 20 Log (R2/R1) = 48 – 20 Log (80/59) = 45.35 ≈ 45 dB(A).
Night-time Lp2 = Lp1 - 20 Log (R2/R1) = 48 – 20 Log (80/59) = 45.35 ≈ 45 dB(A).
The extrapolated SPL for the repeat day-time measurement following remedial works (<50-<51
dB(A)) meet the daytime limit of 55dB(A). The night-time noise level at the nearest NSL (45 dB(A))
meets the limit of 45dB(A).
The results satisfy Condition 3.4.1 ‘’Noise from the activity shall not give rise to sound pressure
levels (Leq,15 minutes) measured at the specified noise sensitive locations which exceed the limit
value(s) by more than 2 dB(A).
Conclusion = Compliant
AN3A (Where R1 = 51/75 and R2 = 91)
Daytime Lp2 = Lp1 - 20 Log (R2/R1) = 65 – 20 Log (91/51) = 59.97 ≈ <60 dB(A).
Daytime Lp2 = Lp1 - 20 Log (R2/R1) = 64 – 20 Log (91/51) = 58.97 ≈ <59 dB(A).
Daytime Lp2 = Lp1 - 20 Log (R2/R1) = 64 – 20 Log (91/51) = 58.97 ≈ <59 dB(A).
Daytime Repeat Lp2 = Lp1 - 20 Log (R2/R1) = 63 – 20 Log (91/51) = 57.97 ≈ <58 dB(A).
Daytime Repeat Lp2 = Lp1 - 20 Log (R2/R1) = 62 – 20 Log (91/51) = 54.97 ≈ <55 dB(A).
Daytime Repeat Lp2 = Lp1 - 20 Log (R2/R1) = 62 – 20 Log (91/51) = 54.97 ≈ <55 dB(A).
Night-time Lp2 = Lp1 - 20 Log (R2/R1) = 59 – 20 Log (91/51) = 53.97 ≈ 54 dB(A).
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Night-time Lp2 = Lp1 - 20 Log (R2/R1) = 58 – 20 Log (91/51) = 52.97 ≈ 53 dB(A).
The extrapolated SPL for day-time (<59-<60 dB(A)) fails to meet the daytime limit of 55dB(A).
On repeating these noise measurement following engineering remedial works, the extrapolated SPL
for day-time (<55-<58 dB(A)) fails to meet the daytime limit of 55dB(A) on one occasion –
measurement 1 = <58 dB(A), measurement 2 & 3 = <55 dB(A)
The night-time noise of 56 - 57dB(A) fails to meet the night-time limit (45dB(A)). The 49dB(A) result
also fails to meet with Condition 3.4.1 ‘’Noise from the activity shall not give rise to sound pressure
levels (Leq,15 minutes) measured at the specified noise sensitive locations which exceed the limit
value(s) by more than 2 dB(A).
Conclusion = Non-compliant
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5.3 Tonal Noise Assessment
For the purpose of this report, tonal noise is characterised in accordance with Section 5.1 of the
EPA’s NG4 document, which indicates that a noise source is tonal if a 1/3 octave band exceeds
adjacent bands by;
· 15dB in low/frequency 1/3 octave bands (25Hz to 125Hz);
· 8dB in middle/frequency bands (160Hz to 400Hz), and;
· 5dB in high/frequency bands (500Hz to 10,000Hz).
A desktop analysis of the spectral content for each monitoring location was conducted. It was
found that there was no tonal noise present during the daytime or night-time monitoring location.
The frequency graphs for each noise sensitive location are presented in Appendix III of this
report. Frequency graphs for the four boundary monitoring locations are available upon request.
5.4 Assessment of on-site Noise Sources
In order to determine the sound power level (Lw) of the principal environmental noise, associated
with activity within the P&G facility, noise measurements were conducted at 5 pieces of equipment at
a reference distance of 1 meter. The results of the assessment are presented in tabular format
below.
TABLE 5.7: Sound Power Level of on-site Noise Sources
Source Description Ref. Distance LAeq (dB)
NS1 AHU5 – Chilled Water 1 meter 80
NS2 VS1 – Dust Extract 1 meter 78
NS3 Toothbrush Compressor
House 1 meter 69
NS4 VS1 – Air Cooled
Condensers 1 meter 73
NS5 Dust Extract Chamber –
4m above ground 1 meter 79
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Appendix I
Map of all Noise Monitoring Locations
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Appendix III
Frequency Spectra at Noise Measurement Locations AN1 – AN3
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AN1A – Day
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70
[dB]
Project 003
A Z
Cursor values
X: 630 Hz
LAeq: 47.4 dB
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70
[dB]
Project 007
A Z
Cursor values
X: 630 Hz
LAeq: 46.9 dB
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70
[dB]
Project 020
A Z
Cursor values
X: 630 Hz
LAeq: 48.7 dB
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AN1A – Night
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70[dB]
Project 18
A Z
Cursor values
X: 630 Hz
LAeq: 39.3 dB
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70[dB]
Project 21
A Z
Cursor values
X: 630 Hz
LAeq: 38.4 dB
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AN2A – Day
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70
[dB]
Project 004
A Z
Cursor values
X: 630 Hz
LAeq: 49.5 dB
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70
[dB]
Project 006
A Z
Cursor values
X: 630 Hz
LAeq: 50.1 dB
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
50
60
70
[dB]
Project 022
A Z
Cursor values
X: 630 Hz
LAeq: 52.2 dB
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Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 34 February 2016
AN2A – Day – Repeat
16 31.5 63 125 250 500 1k 2k 4k 8k 16k 31.5k
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Project 039
A Z
Cursor values
X: 10 kHz
LAeq: 26.3 dB
16 31.5 63 125 250 500 1k 2k 4k 8k 16k 31.5k
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Project 040
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X: 630 Hz
LAeq: 43.8 dB
16 31.5 63 125 250 500 1k 2k 4k 8k 16k 31.5k
[Hz]
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Project 041
A Z
Cursor values
X: 630 Hz
LAeq: 43.3 dB
For
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s only
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Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
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se.
EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 35 February 2016
AN2A - Night
31.5 125 500 2k 8k 31.5k
[Hz]
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Project 23
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Cursor values
X: 630 Hz
LAeq: 44.3 dB
31.5 125 500 2k 8k 31.5k
[Hz]
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Project 25
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Cursor values
X: 630 Hz
LAeq: 43.2 dB
For
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Conse
nt of
copy
right
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r req
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for a
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se.
EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 36 February 2016
AN3A – Day
31.5 125 500 2k 8k 31.5k
[Hz]
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Project 014
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Cursor values
X: 630 Hz
LAeq: 53.5 dB
31.5 125 500 2k 8k 31.5k
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Project 015
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Cursor values
X: 630 Hz
LAeq: 53.4 dB
31.5 125 500 2k 8k 31.5k
[Hz]
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Project 016
A Z
Cursor values
X: 630 Hz
LAeq: 54.0 dB
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 37 February 2016
AN3A – Day – Repeat
16 31.5 63 125 250 500 1k 2k 4k 8k 16k 31.5k
[Hz]
0
10
20
30
40
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60
70
[dB]
Project 042
A Z
Cursor values
X: 10 kHz
LAeq: 20.8 dB
16 31.5 63 125 250 500 1k 2k 4k 8k 16k 31.5k
[Hz]
10
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Project 043
A Z
Cursor values
X: 1 kHz
LAeq: 58.5 dB
16 31.5 63 125 250 500 1k 2k 4k 8k 16k 31.5k
[Hz]
10
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Project 044
A Z
Cursor values
X: 100 Hz
LAeq: 48.1 dB
For
insp
ectio
n pur
pose
s only
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Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 38 February 2016
AN3A - Night
31.5 125 500 2k 8k 31.5k
[Hz]
0
10
20
30
40
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60
70[dB]
Project 027
A Z
Cursor values
X: 630 Hz
LAeq: 46.0 dB
31.5 125 500 2k 8k 31.5k
[Hz]
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Project 028
A Z
Cursor values
X: 630 Hz
LAeq: 40.8 dB
For
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Conse
nt of
copy
right
owne
r req
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for a
ny ot
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se.
EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 39 February 2016
Appendix IV
Noise Meter Calibration Certificates
For
insp
ectio
n pur
pose
s only
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Conse
nt of
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uired
for a
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EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 40 February 2016
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 41 February 2016
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 42 February 2016
Appendix III
Checklist as per NG4 Guidance Document
For
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ectio
n pur
pose
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EPA Export 08-05-2016:00:59:04
Report No. ECS5209 rev 1
Proctor & Gamble (Manufacturing) Ireland Ltd. Page 43 February 2016
Item Included
Yes () – No (X)
Manufacturer, model type and serial number of the sound level meter, calibrator and microphone used for annual survey.
The type of windshield and other microphone attachments used.
The date the equipment was last calibrated to a traceable standard
Calibration before and after the measurements
The frequency weighting networks and meter response time (i.e. fast or slow)
A description of the measurement site and of the range of sound sources including the type of sound (continuous, intermittent, impulsive, tonal).
Measures to exclude extraneous noise and reference to the methodologies followed throughout the survey.
A map of the measurement site showing the locations of the measurement positions.
Photographs illustrating the positioning of the sound level meter (recommended but optional).
Details of the intervening ground between sources and measurement positions and the presence of barriers etc.
The time and date of the measurement.
A description of the meteorological conditions
The background noise level (where practicable).
The names of the person/s that undertook the survey and drafted the survey report.
For
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ectio
n pur
pose
s only
.
Conse
nt of
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