Boggabri Coal Mine - Idemitsu...Boggabri Coal Mine - November 2016 Environmental Noise Monitoring 16407_R01 Page 3 1.3 Terminology & Abbreviations Some definitions of terms and abbreviations,

Boggabri Coal Mine

________________________________________

Environmental Noise Monitoring

November 2016

Prepared for

Boggabri Coal Operations Pty Ltd________________________________________

Boggabri Coal Mine - November 2016 Environmental Noise Monitoring16407_R01 Page i

Boggabri Coal Mine

November 2016Environmental Noise Monitoring

Reference: 16407_R01

Report date: 1 December 2016

Prepared forBoggabri Coal Operations Pty Ltd

PO Box 12

Boggabri NSW 2382

Prepared byGlobal Acoustics Pty Ltd

PO Box 3115

Thornton NSW 2322

Prepared: Jesse Tribby

Scientist (Acoustics)

QA Review: Joel Curran

Chemical Engineer (Acoustics)

Global Acoustics Pty Ltd ~ Environmental noise modelling and impact assessment ~ Sound power testing ~ Noise

control advice ~ Noise and vibration monitoring ~ OHS noise monitoring and advice ~ Expert evidence in Land and

Environment and Compensation Courts ~ Architectural acoustics ~ Blasting assessments and monitoring ~ Noise

management plans (NMP) ~ Sound level meter and noise logger sales and hire

Boggabri Coal Mine - November 2016 Environmental Noise Monitoring16407_R01 Page ii

EXECUTIVE SUMMARYGlobal Acoustics was engaged by Boggabri Coal Operations Pty Ltd to conduct a noise survey around

Boggabri Coal Mine (BCM), an open cut coal mine located north-east of the township of Boggabri, NSW.

Attended environmental noise monitoring described in this report was undertaken during the night period

of 15/16 November 2016. There were eight attended monitoring locations during this survey as listed in

Table 1.1 and shown in Figure 1.

The survey purpose was to quantify and describe the existing acoustic environment around the mine and

compare results with relevant limits in the project approval and Environment Protection Licence (EPL).

Attended monitoring was conducted during the night period in accordance with the EPA ‘Industrial Noise

Policy’ (INP) guidelines and Australian Standard AS 1055 ‘Acoustics, Description and Measurement of

Environmental Noise’. The duration of each measurement was 15 minutes. Monitoring was conducted

during the night period, as project approval and EPL noise limits are the same for the day, evening and night

periods, and it is considered that night is the most conservative period in which to monitor.

Noise levels from BCM complied with the LAeq,15 minute and LA1,1 minute project approval and EPL

criteria at all monitoring locations during the November 2016 survey.

No measurements occurred during which BCM was directly measurable, was within 5 dB of the criteria and

where meteorological conditions resulted in criteria applying (in accordance with the project approval and

EPL). Therefore no measurements required examination using the low frequency assessment methods

outlined in Section 2.3.2.

Global Acoustics Pty Ltd

Boggabri Coal Mine - November 2016 Environmental Noise Monitoring16407_R01 Page iii

Table of Contents

1 INTRODUCTION........................................................................................................................................................1

1.1 Background............................................................................................................................................................1

1.2 Monitoring Locations...........................................................................................................................................1

1.3 Terminology & Abbreviations............................................................................................................................3

2 CONSENT AND CRITERIA......................................................................................................................................4

2.1 Project Approval...................................................................................................................................................4

2.1.1 Project Approval Impact Assessment Criteria...............................................................................................4

2.1.2 Cumulative Noise Criteria..............................................................................................................................5

2.2 Environment Protection Licence.........................................................................................................................5

2.3 Modifying Factors.................................................................................................................................................6

2.3.1 Tonality, Intermittent and Impulsive Noise...................................................................................................6

2.3.2 Low Frequency Noise......................................................................................................................................6

3 METHODOLOGY........................................................................................................................................................8

3.1 Overview................................................................................................................................................................8

3.2 Cumulative Noise.................................................................................................................................................8

3.3 Modification Factors.............................................................................................................................................9

3.4 Monitoring Equipment.........................................................................................................................................9

4 RESULTS......................................................................................................................................................................10

4.1 Attended Noise Monitoring..............................................................................................................................10

4.2 Project Specific Criteria and Weather Conditions..........................................................................................11

4.3 Cumulative Noise Assessment.........................................................................................................................13

4.4 Low Frequency Assessment..............................................................................................................................14

4.5 Atmospheric Conditions....................................................................................................................................14

5 SUMMARY OF COMPLIANCE..............................................................................................................................15

5.1 Operational Noise Assessment.........................................................................................................................15

5.2 Low Frequency Assessment..............................................................................................................................15

Boggabri Coal Mine - November 2016 Environmental Noise Monitoring16407_R01 Page iv

AppendicesA STATUTORY REQUIREMENTS........................................................................................................................16

B CALIBRATION CERTIFICATES........................................................................................................................26

Boggabri Coal Mine - November 2016 Environmental Noise Monitoring16407_R01 Page 1

1 INTRODUCTION

1.1 Background

Global Acoustics was engaged by Boggabri Coal Operations Pty Ltd to conduct a noise survey around

Boggabri Coal Mine (BCM), an open cut coal mine located north-east of the township of Boggabri, NSW.

Attended environmental noise monitoring described in this report was undertaken during the night period

of 15/16 November 2016. There were eight attended monitoring locations during this survey as listed in

Table 1.1 and shown in Figure 1.

The survey purpose was to quantify and describe the existing acoustic environment around the mine and

compare results with relevant limits.

1.2 Monitoring Locations

There were eight monitoring locations during this survey as detailed in Table 1.1 and shown on Figure 1. It

should be noted that this figure shows the actual monitoring position, not the location of residences.

Table 1.1: BCM MONITORING LOCATIONS

Report Descriptor Property Name and Location

N1 'Goonbri', Goonbri Road

N2 'Sylvania', Dripping Rock Road

N3 'Picton', Dripping Rock Road

N4 'Barbers Lagoon', Boggabri-Manilla Road

N5 'Glenhope', 84 Warners Road

N6 'Roma', Vine Lane

N7 'Arlington', Curracabah Road

N8 'Roma 2', 94 Warners Road


Figure 1: Boggabri Coal Attended Noise Monitoring Locations (Source: BCM Noise Management Plan)


1.3 Terminology & Abbreviations

Some definitions of terms and abbreviations, which may be used in this report, are provided in Table 1.2.

Table 1.2: TERMINOLOGY & ABBREVIATIONS

Descriptor Definition

LA The A-weighted root mean squared (RMS) noise level at any instant

LAmax The maximum A-weighted noise level over a time period or for an event

LA1 The noise level which is exceeded for 1 per cent of the time

LA10The noise level which is exceeded for 10 percent of the time, which is approximately the

average of the maximum noise levels

LA50 The noise level which is exceeded for 50 per cent of the time

LA90The level exceeded for 90 percent of the time, which is approximately the average of the

minimum noise levels. The LA90 level is often referred to as the “background” noiselevel and is commonly used to determine noise criteria for assessment purposes

LAmin The minimum A-weighted noise level over a time period or for an event

LAeq The average noise energy during a measurement period

Lpk The unweighted peak noise level at any instant

dB(A)Noise level measurement units are decibels (dB). The “A” weighting scale is used to

describe human response to noise

SPLSound pressure level (SPL), fluctuations in pressure measured as 10 times a logarithmic

scale, the reference pressure being 20 micropascals

ABLAssessment background level (ABL), the 10th percentile background noise level for a

single period (day, evening or night) of a 24 hour monitoring period

RBLRating background level (RBL), the background noise level for a period (day, evening or

night) determined from ABL data

Hertz (Hz)Cycles per second, the frequency of fluctuations in pressure, sound is usually a

combination of many frequencies together

VTGVertical temperature gradient in degrees Celsius per 100 metres altitude. Estimated from

wind speed and sigma theta data

IADenotes Inaudible. When site only noise is noted as IA, there was no noise from the

source of interest audible at the monitoring location

NMDenotes Not Measurable. If site only noise is noted as NM, this means some noise from

the source of interest was audible at low-levels, but could not be quantified

Day This is the period 7:00am to 6:00pm

Evening This is the period 6:00pm to 10:00pm

Night This is the period 10:00pm to 7:00am


2 CONSENT AND CRITERIA

All monitoring has been carried out in accordance with the most recent BCM project approval, Environment

Protection Licence (EPL 12407) and Noise Management Plan (NMP).

2.1 Project Approval

2.1.1 Project Approval Impact Assessment Criteria

Noise conditions from BCM's MOD 4 consolidated approval (09-0182) are reproduced in Appendix A.

Table 3 in Section 5 of the approval outlines the day, evening and night time impact assessment criteria for

the project, which are reproduced in Table 2.1.

Table 2.1: NIGHT TIME PROJECT APPROVAL IMPACT ASSESSMENT CRITERIA

Descriptor Monitoring LocationProperty Name

Day/Evening/Night ImpactAssessment CriterionLAeq,15minute dB

Night Impact Assessment CriterionLA1,1minute dB

N1 Goonbri NA1 NA1

N2 Sylvania 35 45

N3 Picton 35 45

N4 Barbers Lagoon 35 45

N5 Glenhope NA1 NA1

N6 Roma 35 45

N7 Arlington 35 45

N8 Roma 2 NA1 NA1

Note:

1. NA indicates that this location is acquisition upon request, and therefore, has no applicable criteria.

Notes under the criteria table in the project approval state that:

“ 1. Noise generated by the project is to be measured in accordance with the relevant requirements, and

exemptions (including certain meteorological conditions), of the NSW Industrial Noise Policy.

2. Operational noise generated by the project includes noise generated from the use of the private haul road and

proposed rail spur.”

Further to this, Section 14 – Noise Measurement, outlines further detail on meteorological exclusions:

“Where conditions in this approval refer to measurement of noise within the context of the NSW Industrial Noise

Policy the inversion class to be applied to the project is Class G.”


Based on the information in the project approval noise limits have been assumed to apply under all

meteorological conditions except for:

• wind speeds greater than 3 m/s at 10 metres above ground level.

As noise limits apply under the strongest inversion conditions, stability class G, no exemptions for inversion

conditions are applicable for BCM.

2.1.2 Cumulative Noise Criteria

Cumulative noise impact assessment criteria as specified in Table 4 of Section 7 of BCM's approval are

detailed in Table 2.2.

Table 2.2: NIGHT LAeq,period CUMULATIVE CRITERIA

Descriptor Monitoring LocationProperty Name

Cumulative Impact Assessment CriterionLAeq,night dB

N1 Goonbri NA1

N2 Sylvania 40

N3 Picton 40

N4 Barbers Lagoon 40

N5 Glenhope NA1

N6 Roma 40

N7 Arlington 40

N8 Roma 2 NA1

Note:

1. NA indicates that this location is acquisition upon request, and therefore, has no applicable criteria.

Notes from project approval:

1. Cumulative noise is to be measured in accordance with the relevant requirements, and exemptions (including certain meteorologicalconditions), of the NSW Industrial Noise Policy; and

2. Operational noise includes noise from the mining operations and use of private haul roads and rail spurs.

2.2 Environment Protection Licence

BCM holds Environment Protection Licence (EPL) No.12407. Section L3 of the licence specifies noise limits

and the meteorological conditions in which they apply. These limits and meteorological exclusions are

consistent between the EPL and the project approval, however, the EPL does not specify cumulative noise

criteria.

Section M8 of the EPL specifies monthly monitoring during the night period for fifteen minutes at each

location. Eight monitoring locations were included in this survey while changes to the NMP were being

finalised. These proposed changes will remove the requirement for monitoring at N1, N5 and N8.


2.3 Modifying Factors

Noise monitoring and reporting is carried out generally in accordance with the Environment Protection

Authority (EPA) 'Industrial Noise Policy' (INP). Chapter 4 of the INP deals specifically with modifying

factors that may apply to industrial noise. The most common modifying factors are addressed in detail

below.

2.3.1 Tonality, Intermittent and Impulsive Noise

As defined in the Industrial Noise Policy:

Tonal noise contains a prominent frequency and is characterised by a definite pitch.

Impulsive noise has high peaks of short duration or a sequence of such peaks.

Intermittent noise is characterised by the level suddenly dropping to the background noise levels several times

during a measurement, with a noticeable change in noise level of at least 5 dB. Intermittent noise applies to

night-time only.

Years of monitoring have indicated that noise levels from mining operations, particularly those levels

measured at significant distances from the source, are relatively continuous. Given this, noise levels from

BCM at the monitoring locations are unlikely to be intermittent. In addition, there is no equipment on site

that is likely to generate tonal or impulsive noise as defined in the INP.

2.3.2 Low Frequency Noise

INP Method

As defined in the Industrial Noise Policy:

Low frequency noise contains major components within the low frequency range (20 Hz to 250 Hz) of the

frequency spectrum.

As detailed in Chapter 4 of the INP, low frequency noise should be assessed by measuring the site only

C-weighted and site only A-weighted level over the same time period. The correction/penalty of 5 dB is

applied if the difference between the two levels is 15 dB or more.

Broner Method

Low frequency noise can also be assessed against criteria specified in the paper “A Simple Method for Low

Frequency Noise Emission Assessment” (Broner JLFNV vol29-1 pp1-14 2010). If the total predicted site only

C-weighted noise level at a receptor exceeds the relevant criterion, a 5 dB penalty (modifying factor) is

added to measured levels. This method is included to provide a comparison with the INP method.


Low Frequency Assessment Methods

Low frequency assessment methods are detailed in Table 2.3.

Table 2.3: LOW FREQUENCY ASSESSMENT METHODS AND MODIFYING FACTOR TRIGGERS

Assessment Method Calculation Method Night Period ModifyingFactor Trigger

Day Period ModifyingFactor Trigger

Broner, 2010 Site only LCeq >60 >65

INP, total Site only LCeq minus site only LAeq >=15 >=15

The EPA is currently undertaking a review of the assessment of low frequency noise. While a Draft

Industrial Noise Guideline (ING) was released in September 2015, low frequency noise results from BMC

have been compared to the assessment methods and modifying factor triggers presented above. The

applicability of these triggers have been considering when applying low frequency modifying factor

corrections.


3 METHODOLOGY

3.1 Overview

Noise monitoring was conducted in accordance with the Environmental Protection Authority (EPA)

'Industrial Noise Policy' (INP) guidelines and Australian Standard AS1055 'Acoustics, Description and

Measurement of Environmental Noise'. Atmospheric condition measurement was also undertaken.

Monitoring was conducted during the night period, as project approval and EPL noise limits are the same

for the day, evening and night periods, and it is considered that night is a more conservative period in which

to monitor. One fifteen minute measurement was taken at each location.

In most cases, monitoring near the residence façade is impractical due to barking dogs or issues with

obtaining access. In all cases, measurements for this survey were undertaken at a suitable and

representative location.

The terms 'Inaudible' (IA) or 'Not Measurable' (NM) may be used in this report. When site noise is noted as

IA, no site noise was audible at the monitoring location. NM indicates that some site noise was audible, but

indeterminate due to one of the following reasons:

• site noise levels were insignificant and unlikely, in many cases, to be even noticed; or

• site noise levels were masked by another relatively loud noise source, but were estimated to be lessthan LAeq 30 dB, which is insignificant in terms of any applicable criterion.

If site noise were NM due to masking but estimated to be significant in relation to a relevant criterion, we

would employ methods as per the Industrial Noise Policy (e.g. measure closer and back calculate) to

determine a value for reporting.

All sites noted NM in this report are due to insignificant absolute values.

Meteorological data was obtained from the BCM weather station. This allowed correlation of atmospheric

parameters and measured noise levels.

3.2 Cumulative Noise

In order to assess cumulative noise impacts as required, we have assumed total mining noise levels from the

attended survey will apply for the entire period being assessed.


3.3 Modification Factors

Years of monitoring have indicated that noise levels from mining operations, particularly those levels

measured at significant distances from the source are relatively continuous. Given this, noise levels from

BCM at the monitoring locations are unlikely to be intermittent. In addition, there is no equipment on site at

BCM that would generate impulsive noise as defined in the INP. However, low frequency noise from BCM

has been addressed.

3.4 Monitoring Equipment

The equipment used to measure environmental noise levels is detailed in Table 3.1. Calibration certificates

are provided in Appendix B.

Table 3.1: ATTENDED NOISE MONITORING EQUIPMENT

Model Serial Number Calibration Due Date

Rion NA-28 sound level analyser 01070590 28/06/2018

Pulsar 1096 acoustic calibrator 57413 23/12/2017


4 RESULTS

4.1 Attended Noise Monitoring

Noise levels measured at each location during attended surveys are provided in Table 4.1.

Table 4.1: MEASURED NOISE LEVELS - NOVEMBER 20161

Location andProperty Name

Start Date andTime

LAmax dB

LA1 dB

LA10 dB

LA50 dB

LAeq dB

LA90 dB

LAmin dB

N1 - Goonbri 15/11/2016 22:56 49 39 36 33 34 31 29

N2 - Sylvania 15/11/2016 22:00 52 50 46 36 41 34 32

N3 - Picton 15/11/2016 22:27 38 34 32 30 30 28 25

N4 - Barbers Lagoon 15/11/2016 23:54 37 32 30 29 29 27 26

N5 - Glenhope 16/11/2016 00:19 67 50 35 32 41 28 25

N6 - Roma 16/11/2016 01:09 43 34 27 25 26 23 20

N7 - Arlington 16/11/2016 01:42 44 31 26 22 24 20 18

N8 - Roma 2 16/11/2016 00:39 51 41 40 30 35 23 21

Notes:

1. Levels in this table are not necessarily the result of activity at BCM.


4.2 Project Specific Criteria and Weather ConditionsTable 4.2 compares measured LAeq,15minute levels from BCM with project approval and EPL criteria.

Table 4.2: LAeq,15minute GENERATED BY BCM AGAINST PROJECT APPROVAL/EPL CRITERIA – NOVEMBER 2016


Start Date andTime

Wind Speedm/s1

Criterion dB2 CriterionApplies?2,6

BCMLAeq,15min dB3,4

Exceedance2,4,5

N1 - Goonbri 15/11/2016 22:56 0.6 NA NA 28 NA

N2 - Sylvania 15/11/2016 22:00 1.1 35 Yes IA Nil

N3 - Picton 15/11/2016 22:27 0.7 35 Yes IA Nil

N4 - Barbers Lagoon 15/11/2016 23:54 0.6 35 Yes IA Nil

N5 - Glenhope 16/11/2016 00:19 0.8 NA NA IA NA

N6 - Roma 16/11/2016 01:09 1.0 35 Yes IA Nil

N7 - Arlington 16/11/2016 01:42 0.6 35 Yes IA Nil

N8 - Roma 2 16/11/2016 00:39 1.0 NA NA IA NA

Notes:

1. Criterion may or may not apply due to rounding of meteorological data values;

2. NA in 'Criterion', 'Criterion Applies' and 'Exceedance' columns indicates this location is acquisition upon request and has no applicablenoise limits;

3. Estimated or measured LAeq,15minute attributed to BCM;

4. Bold results in red are possible exceedances of relevant criteria;

5. NA in exceedance column indicates atmospheric conditions outside those specified in project approval and EPL, therefore criterion doesnot apply; and

6. Noise emission limits do not apply during wind speeds greater than 3 metres per second (at a height of 10 metres).


Table 4.3 compares measured LA1,1minute levels from BCM with project approval and EPL criteria.

Table 4.3: LA1,1minute GENERATED BY BCM AGAINST PROJECT APPROVAL/EPL CRITERIA – NOVEMBER 2016


Start Date andTime

Wind Speedm/s1

Criterion dB2 CriterionApplies?2,6

BCM LA1,1mindB3,4

Exceedance2,4,5

N1 - Goonbri 15/11/2016 22:56 0.6 NA NA 31 NA

N2 - Sylvania 15/11/2016 22:00 1.1 45 Yes IA Nil

N3 - Picton 15/11/2016 22:27 0.7 45 Yes IA Nil

N4 - Barbers Lagoon 15/11/2016 23:54 0.6 45 Yes IA Nil

N5 - Glenhope 16/11/2016 00:19 0.8 NA NA IA NA

N6 - Roma 16/11/2016 01:09 1.0 45 Yes IA Nil

N7 - Arlington 16/11/2016 01:42 0.6 45 Yes IA Nil

N8 - Roma 2 16/11/2016 00:39 1.0 NA NA IA NA

Notes:

1. Criterion may or may not apply due to rounding of meteorological data values;

2. NA in 'Criterion', 'Criterion Applies' and 'Exceedance' columns indicates this location is acquisition upon request and has no applicablenoise limits;

3. Estimated or measured LAeq,15minute attributed to BCM;

4. Bold results in red are possible exceedances of relevant criteria;

5. NA in exceedance column indicates atmospheric conditions outside those specified in project approval and EPL, therefore criterion doesnot apply; and

6. Noise emission limits do not apply during wind speeds greater than 3 metres per second (at a height of 10 metres).


4.3 Cumulative Noise AssessmentTable 4.4 compares measured LAeq levels for BCM and all other audible mining operations with cumulative

noise impact assessment criteria, as detailed in the project approval.

Table 4.4: MINING LAeq,period NOISE LEVELS AGAINST BCM CUMULATIVE IMPACT ASSESSMENT CRITERIA – NOVEMBER 2016

Location and Property Name

Start Date and Time CumulativeCriterion

LAeq,period dB1

BCM CumulativeLAeq,period dB2,3,4

Exceedance1,4

N1 - Goonbri 15/11/2016 22:56 NA 29 NA

N2 - Sylvania 15/11/2016 22:00 40 Nil Nil

N3 - Picton 15/11/2016 22:27 40 Nil Nil

N4 - Barbers Lagoon 15/11/2016 23:54 40 Nil Nil

N5 - Glenhope 16/11/2016 00:19 NA Nil NA

N6 - Roma 16/11/2016 01:09 40 Nil Nil

N7 - Arlington 16/11/2016 01:42 40 Nil Nil

N8 - Roma 2 16/11/2016 00:39 NA Nil NA

Notes:

1. NA in criterion and exceedance columns indicates this location is acquisition on request and has no applicable noise limits ormeteorological conditions are outside those specified in project approval and EPL, therefore criterion does not apply;

2. These are results for BCM and all other mining noise. 15 minute measurements have been assumed to apply across the entire night periodas worst case results;

3. By definition, cumulative noise refers to two or more noise sources. If only one source of mining noise is audible, or if BCM is inaudible,then the measured cumulative noise is defined here as Nil; and

4. Bold results in red are possible exceedances of relevant criteria.


4.4 Low Frequency Assessment

Table 4.5 provides statistics for attended noise monitoring undertaken around BCM in November 2016.

Table 4.5: ATTENDED MEASUREMENT STATISTICS FOR BCM – NOVEMBER 2016

Conditions Total for November 2016

Number of measurements 8

Number of measurements where criterion applies (where thereis an applicable criterion)

5

Number of measurements where BCM was directly measurable(not less than a maximum cut-off value), was within 5 dB of the

criteria and where met results in criterion applying

0

None of the 8 measurements occurred during which BCM was directly measurable (not “inaudible”, “not

measurable” or less than a maximum cut-off value “<30 dB”), was within 5 dB of the relevant criteria and




4.5 Atmospheric Conditions

Atmospheric condition measurement data, collected with each noise measurement, using a kestrel hand held

meteorological monitor are shown in Table 4.6. Atmospheric condition data is routinely recorded on a site-

by-site basis to show conditions during the monitoring period. The wind speed, direction and temperature

were measured at 1.8 metres. Attended noise monitoring is not undertaken during rain or hail.

Table 4.6: MEASURED ATMOSPHERIC CONDITIONS – NOVEMBER 2016


Start Date andTime

TemperatureDegrees

Wind Speed m/s 1,2

Wind DirectionDegrees 1,2

Cloud CoverEighths

N1 - Goonbri 15/11/2016 22:56 14 0.7 115 0

N2 - Sylvania 15/11/2016 22:00 18 0.4 285 1

N3 - Picton 15/11/2016 22:27 17 0.0 - 0

N4 - Barbers Lagoon 15/11/2016 23:54 17 0.0 - 0

N5 - Glenhope 16/11/2016 00:19 13 1.0 60 0

N6 - Roma 16/11/2016 01:09 11 0.5 230 0

N7 - Arlington 16/11/2016 01:42 11 0.6 90 0

N8 - Roma 2 16/11/2016 00:39 14 0.0 - 0

Notes:

1. Wind speed and direction measured at 1.8 metres; and

2. “-” denotes calm conditions at 1.8 metres.


5 SUMMARY OF COMPLIANCE

The following summaries apply to attended noise monitoring conducted during the night of

15/16 November 2016.

5.1 Operational Noise Assessment

Activities from BCM complied with the relevant project approval and EPL noise limits during monitoring on

15/16 November 2016 at all monitoring locations.

5.2 Low Frequency Assessment

No measurements occurred during which BCM was directly measurable, was within 5 dB of the criteria and




Global Acoustics Pty Ltd


APPENDIX

A STATUTORY REQUIREMENTS


The noise sections of the BCM's project approval are reproduced below:

A.1 BCM DEVELOPMENT CONSENT








The noise sections of the BCM's EPL are reproduced below:

A.2 BCM EPL CONDITIONS



APPENDIX

B CALIBRATION CERTIFICATES



Documents

Boggabri Coal Mine - Idemitsu...Boggabri Coal Mine - November 2016 Environmental Noise Monitoring 16407_R01 Page 3 1.3 Terminology & Abbreviations Some definitions of terms and abbreviations,