port operations 290mtpa noise assessment report · 2016-12-02 · subject: port operations 290mtpa...

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PORT OPERATIONS 290MTPA NOISE ASSESSMENT REPORT

BHP BILLITON IRON ORE 075063-140-100 Rev3-6 September 2016

Client: BHP Billiton Iron Ore Subject: Port Operations 290MTPA Noise Assessment Report

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DOCUMENT CONTROL & REVIEW INFORMATION

Client: BHP Billiton Iron Ore

Client Contact: Cleve Etherington

SVT Contact:

SVT Office:

SVT Job No:

SVT Document No: 075063-140-100 Rev3-6 September 2016

Rev Description Prepared Reviewed Date

3 Updated Table 7.2 6 September 2016

2 Updated with commnets 23 August 2016

1 Issued to Client 15 August 2016

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EXECUTIVE SUMMARY Overview

BHP Billiton Iron Ore is proposing to increase the approved throughput of its port operations from 270 Mtpa under the current operating licence to 290 Mtpa.

This increase in port throughput capacity will be achieved primarily through improving the availability and utilisation of existing infrastructure in the Port Hedland Inner Harbour including car dumpers, ship loaders, conveyors, stackers and reclaimers. In addition, some minor upgrades are required to selected plant predominately involving upgrades to selected conveyor drive motors and other minor engineering changes, to increase the ore handling rates across the following existing routes:

Direct Shipped Ore route from Car Dumper 2 to Ship Loader’s 5 & 6 via conveyor P564 (Nelson Point);

Direct Shipped Ore route from Car Dumper’s 4 & 5 to Ship Loader’s 7 & 8 (Finucane Island);

Inflow route from Car Dumper’s 4 & 5 to Stacker’s 9 & 10 (Finucane Island) SVT has undertaken an environmental noise impact assessment of the proposed minor upgrades (the Project) at BHP Billiton Iron Ore’s Port Hedland facilities in Western Australia.

Billiton Iron Ore Noise Objectives

BHP Billiton Iron Ore’s Port Operations are located adjacent to the Town of Port Hedland. Due to historical land use planning, there is limited buffer between industry and residential area’s.

BHP Billiton Iron Ore and the Department of Environmental Regulation (Noise Management Branch) have agreed to a noise management approach which includes implementing an Environmental Noise Reduction Management Plan (ENRMP) to minimise and manage BHP Billiton Iron Ore’s noise impacts. The ENRMP sets out the following noise objectives for BHP Billiton Iron Ore’s port operations:

To reduce noise to as low as reasonably practicable, acknowledging growth, and

Where reasonably possible, comply with the requirements of the Environmental Protection (Noise) Regulations 1997 (including seeking an exemption if necessary);

Where it is impracticable to comply with Environmental Protection (Noise) Regulations 1997, ensuring continuous improvement is facilitated through an Environmental Noise Reduction Management Plan (ENRMP);

Ensure that new plant and infrastructure being planned for the Port facilities, particularly Prescribed Plant as defined by the Environmental Protection Act (1986), complies with the Environmental Protection (Noise) Regulations 1997 where land use planning constraints allow; and

Comply with the Western Australian Planning Commission’s State Planning Policy 5.4 Road and Rail Transport Noise and Freight Considerations in Land Use Planning where land use planning constraints allow.


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Noise Modelling

The project noise model has been assessed against the base case cumulative noise levels as previously defined for BHP Billiton Iron Ore’s growth projects (i.e. Port Hedland Inner Harbour Project) – see section 6.1. The project modelling was undertaken and assessed for the in-isolation and BHP Billiton Iron Ore’s cumulative case (see section 5.3).

Port Facility Compliance and ALARP

Compliance

All noise control recommendations have been based on meeting BHP Billiton Iron Ore’s noise objectives.

Noise modelling results contained in the body of the report predict that without any noise control the proposed project will not be compliant with the noise objectives and the cumulative noise impacts on the receivers will increase.

Noise Control and ALARP

A detailed examination of engineering noise controls for the proposed project has been undertaken in order to determine which noise control options are reasonably practicable. The examination has used an integrated approach taking the following factors into account:

BHP Billiton Iron Ore’s noise objectives; magnitude of predicted noise impacts at the sensitive receptors; ranking of noise source contributions at the sensitive receptors; and the principle of As Low as Reasonably Practicable (ALARP) which balances noise

attenuation by considering positive and negative impacts of the noise attenuation on: o safety; o reliability of system with noise attenuation in place; o ongoing maintenance requirements; o operations; and o life cycle costs

In order to ensure that noise control benefits are properly understood, various studies have been undertaken in order to determine which noise control options will provide solutions that meet BHP Billiton Iron Ore’s noise objectives and the ALARP principles. Some of these studies include the following:

long-term measurement of a range of low noise idlers – the aim of these trials was to determine which of the low noise idler types provides the best reduction in noise over an extended period of time. The trials were run over 18 months in order to monitor each idler type and to determine if the noise reduction benefit they offer deteriorates over time;

measurement of conveyors with varying belt widths and speeds; and

ALARP work sessions – Various ALARP work sessions have been held involving subject matter experts. The primary purpose of the work sessions was to understand the practicability of various noise control solutions and determine the optimum approach.

Project Noise Control Requirements


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In order to achieve the BHP Billiton Iron Ore Noise Objectives, noise controls have been recommended for each of the following cases considered in the study:

In-isolation Case

The following conclusions were determined for the in-isolation case:

it was not reasonably practicable for the in-isolation case to be compliant with the assigned levels;

Noise control will be implemented so that each equipment item on its own achieves the assigned noise levels for the in-isolation case; and

Noise control will be implemented so that the cumulative case noise levels remain the same as the base case model.

Cumulative Case

Noise controls have been recommended so that the cumulative noise levels achieve the base case noise levels (i.e. previous predicted noise levels from growth expansions).

Of the noise controls recommended Drive P10 has been identified for noise shielding.


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TABLE OF CONTENTS DOCUMENT CONTROL & REVIEW INFORMATION ............................... II

EXECUTIVE SUMMARY ....................................................................... III

TABLE OF CONTENTS ............................................................................6

1 INTRODUCTION .............................................................................8 1.1 Applicable Documents ................................................................................................8 1.2 Major Activities ..........................................................................................................8

2 APPLICABLE REGULATIONS AND ASSIGNED LEVELS ....................9 2.1 BHP Billiton Iron Ore Noise Objectives .........................................................................9 2.2 Environmental Protection (Noise) Regulations 1997 ......................................................9 2.2.1 Applicable Noise Limits for the Project ..........................................................................................................10

3 BHP BILLITON IRON ORE PORT HEDLAND OPERATIONS .......... 12

3.1 Previous Noise Modelling Overview ........................................................................... 12

4 OUTLINE OF PROPOSED PROJECT .............................................. 13

5 NOISE MODELLING – OVERVIEW ............................................... 15 5.1 Noise Model Software .............................................................................................. 15 5.2 Input Data .............................................................................................................. 15 5.2.1 Noise Source Sound Power Levels ................................................................................................................15 5.2.2 Topography and Ground Types ....................................................................................................................15 5.2.3 Receiving Locations ....................................................................................................................................16 5.2.4 Meteorology ...............................................................................................................................................16 5.3 Project Noise Model Configuration ............................................................................. 17 5.4 Noise Model Validation and Background Noise ............................................................ 17

6 NOISE MODELLING RESULTS ..................................................... 18 6.1 Base Case Noise Modelling Results ............................................................................ 18 6.2 Project Noise Modelling Results and Noise Map .......................................................... 19 6.2.1 Project – In-isolation case ...........................................................................................................................19 6.2.2 Project – Cumulative case ...........................................................................................................................20

7 ANALYSIS OF RESULTS, NOISE CONTROL AND ALARP .............. 22

7.1 Methodology ........................................................................................................... 22 7.2 Noise Control Philosophy .......................................................................................... 22 7.3 Noise Control and ALARP ......................................................................................... 23 7.4 Cumulative Impact Compliance ................................................................................. 23 7.5 Noise Control Requirements ..................................................................................... 25 7.5.1 In Isolation Noise Controls ..........................................................................................................................25 7.5.2 Cumulative Noise Controls ...........................................................................................................................26

8 CONCLUSIONS ............................................................................ 27 8.1 In-isolation Case ..................................................................................................... 27 8.2 Cumulative Case ...................................................................................................... 27

APPENDIX A. APPLICABLE NOISE LEGISLATION ............................. A-1

APPENDIX B. SOURCE SOUND POWER LEVEL .................................. B-1


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APPENDIX C. SCHEMATIC SHOWING UPGRADED ROUTES .............. C-1


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1 INTRODUCTION SVT have been engaged by BHP Billiton Iron Ore Pty Ltd (BHP Billiton Iron Ore) to undertake an environmental noise impact assessment of the proposed minor upgrades (the Project) to it’s Nelson Point and Finucane Island port facilities in Port Hedland, Western Australia.

The objectives of the noise assessment were to:

Quantify the predicted noise levels as a result of project;

Assess the noise impacts of the project on noise sensitive receivers in Port Hedland; and

Where appropriate, recommend noise mitigation options to achieve compliance with Billiton Iron Ore’s noise objectives.

1.1 Applicable Documents The following lists the applicable documents for the project:

1) Environmental Protection Act 1986

2) Environmental Protection (Noise) Regulations 1997

3) BHP Billiton Iron Ore’s Environmental Noise Reduction Management Plan – Port Hedland Rev 6, January 2016

4) SVT Document: 075063-66-100 “Port Hedland Inner Harbour Project (PHIHP) Environmental Noise Assessment” Rev 6, September 2011.

5) SVT Document: 075063-102-200 “Port Hedland Inner Harbour Project (PHIHP) Deferral: Noise Assessment” Rev 4, January 2014.

1.2 Major Activities The major activities undertaken during the project environmental noise assessment are listed below:

Measurement of equipment noise levels representative of the proposed equipment and calculation of associated Sound Power Levels (SWL) for noise modelling;

Modelling of the project, including various equipment configurations and operational scenarios, assessment of noise control options and prediction of noise impact in Port Hedland;

Evaluation of the proposed project against BHP Billiton Iron Ore’s noise objectives; and

ALARP work sessions to assess the practicability of various noise control options that were proposed as a result of noise modelling in order to meet BHP Billiton Iron Ore’s noise objectives.

This report will present the noise modelling results, noise compliance assessment and recommended noise controls for the project, based on the activities undertaken and the outcomes of the ALARP work sessions.


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2 APPLICABLE REGULATIONS AND ASSIGNED LEVELS

2.1 BHP Billiton Iron Ore Noise Objectives BHP Billiton Iron Ore’s noise objectives are as follows:

Reduce noise to as low as reasonably practicable, acknowledging growth, and where reasonably possible, comply with the requirements of the Environmental Protection (Noise) Regulations 1997 (including seeking an exemption if necessary);

Where it is impracticable to comply with Environmental Protection (Noise) Regulations 1997, ensure continuous improvement is facilitated through an Environmental Noise Reduction Management Plan (ENRMP);

Ensure that new plant and infrastructure being planned for the Port facilities, particularly Prescribed Plant as defined by the Environmental Protection Act (1986), complies with the Environmental Protection (Noise) Regulations 1997 where land use planning constraints allow; and

Comply with the Western Australian Planning Commission’s State Planning Policy 5.4 Road and Rail Transport Noise and Freight Considerations in Land Use Planning where land use planning constraints allow.

2.2 Environmental Protection (Noise) Regulations 1997 Environmental noise management in Western Australia is implemented through the Environmental Protection (Noise) Regulations 1997 which operate under the Environmental Protection Act 1986. The regulations specify maximum noise levels (assigned levels), which are the highest noise levels that can be received at noise sensitive premises, commercial premises and industrial premises.

The assigned levels in Port Hedland are different for individual noise sensitive premises because an influencing factor is incorporated into these assigned noise levels. This influencing factor depends on land use zonings within a 100 metre and 450 metre radius from the noise receiver. The influencing factors in Port Hedland are presented in Figure 2-1.

The regulations define three types of assigned noise level:

LAmax assigned noise level means a noise level which is not to be exceeded at any time;

LA1 assigned noise level which is not to be exceeded for more than 1% of the time; and

LA10 assigned noise level which is not to be exceeded for more than 10% of the time.

The LA10 noise limit is the most significant for this study since this is representative of continuous noise emissions from the port facility. In addition, the port facilities operate 24 hours a day and therefore, the most stringent noise limit is applicable during night-time hours (2200-0700).

Consequently, the LA10 night-time assigned noise level is used to assess the project.


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Figure 2-1 Influencing factors applicable to different areas of Port Hedland

2.2.1 Applicable Noise Limits for the Project

The applicable assigned noise levels (including influencing factors and penalties) for the noise sensitive receivers being assessed for the Project are presented in Table 2-1. The receiver locations are also graphically presented in Figure 2-2.

A detailed discussion of the Environmental Protection (Noise) Regulations 1997 is presented in Appendix A.

Table 2-1 Assigned noise levels for noise sensitive receivers in Port Hedland

Noise sensitive receiver Assigned noise level in dB(A)

for night time1

Brearley Street 32

Hospital 32

Police Station 47

Pretty Pool 30

Wedgefield Camp 39

South Hedland 35

1 Night time (2200-0700) assigned noise levels have been used because these levels are the most stringent.


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Figure 2-2 Map of Port Hedland noise sensitive receivers

Figure 2-3 Map of Port Hedland area and surrounding noise sensitive receivers


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3 BHP BILLITON IRON ORE PORT HEDLAND OPERATIONS BHP Billiton Iron Ore is one of Australia’s largest iron ore producers, operating open pit mining operations in the Pilbara region of Western Australia at Mt Whaleback, Yandi, Jimblebar, Orebody 18, Orebody 23/25, Area C and Yarrie/Nimingarra. Two dedicated heavy haulage rail systems, running from Newman, Area C and Yandi mines as well as Yarrie/Nimingarra operations, deliver the ore to BHP Billiton Iron Ore’s Port Hedland port facilities.

The BHP Billiton Iron Ore Port Hedland port facilities consist of processing, stockpiling and shiploading operations at Finucane Island and Nelson Point, located on the opposite sides of the Port Hedland Inner Harbour.

3.1 Previous Noise Modelling Overview Noise surveys of BHP Billiton Iron Ore’s Port Hedland operations have been undertaken progressively over the years commencing prior to the PACE Project (2004). Noise modelling has been undertaken prior to each project phase and has provided noise contours and predicted noise levels at a number of sites in Port Hedland. These include:

Brearley Street

Hospital

Police Station

Pretty Pool.

The location of these receivers used in the model can be seen in Figure 2-2.

BHP Billiton Iron Ore has undertaken ongoing modelling and monitoring of these sites and will continue to use the Hospital2 site as the point of reference to measure noise performance. These sites are monitored biannually3 in accordance with BHP Billiton’s Environmental Noise Reduction Management Plan (ENRMP) for Port Hedland. BHP Billiton Iron Ore considers the Hospital to be the most appropriate reference site location with respect to noise for the following reasons:

It is located within an area reflective of where the community lives;

The monitoring location is adjacent to the old Hospital building – a noise sensitive area;

It is more directly influenced by BHP Billiton Iron Ore’s operations (i.e. away from other port operations and ocean influences); and

It is slightly elevated compared to the surrounding topography and hence, is likely to provide a more conservative assessment point.

2 This site no longer operates as a hospital.

3 Biannual monitoring consists of attended measurements within Port Hedland. The main focus of the attended measurements is to validate the accuracy of the noise model.


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4 OUTLINE OF PROPOSED PROJECT The proposed Project is part of an overall effort to increase BHP Billiton Iron Ore’s Port Hedland Inner Harbour capacity. The scope of the Project includes a series of machine and conveyor speed upgrades and utilisation improvements that will deliver higher tonnage rates to various routes of the inner harbour. The proposed increase in the utilisation of BHP Billiton Iron Ore’s current plant and equipment through the Project (i.e. utilisation improvements) is not expected to result in an increase in the predicted noise emissions. Noise modelling is undertaken using worst case parameters i.e. assumes that all plant and equipment on-site is operating at the same time, on a continuous basis (24 hours a day, 7days a week) and under worst case meteorological conditions. In reality, not all plant and equipment will be operated at the same time, with many noise sources not running at any one time.

This conservative modelling approach ensures that the highest potential cumulative received noise levels are considered in the noise assessment. By increasing the current utilisation of the existing plant and equipment, these changes are therefore by default already incorporated into the noise assessment. The project and associated modelling includes upgrades to the following routes:

Direct Shipped Ore route from Car Dumper 2 to Ship Loader’s 5 & 6 via conveyor P564 (Nelson Point);

Direct Shipped Ore route from Car Dumper’s 4 & 5 to Ship Loader’s 7 & 8 (Finucane Island);

Inflow route from Car Dumper’s 4 & 5 to Stacker’s 9 & 10 (Finucane Island)

Proposed changes to specific equipment are listed in Table 4-1 below. Conceptual drawings of the proposed upgrades are presented in Appendix C.

Table 4-1 Proposed route upgrades

Equipment Item (Noise Source) Conveyor Belt Speed (m/s) Drive Size (kW)

Exisiting Proposed Exisiting Proposed

P865 5 5 2 x 1250 2 x 1500

P809 4.5 5.1 710 800

SLP7 5 5 2 x 315 2 x 355

SLP8 5 5 2 x 315 2 x 355

P800 4.3 5.1 1000 1000

P801 4.7 5 450 800

P802 4.3 5.1 2 x 630 1750

STK9 4.8 5.5 2 x 250 2 x 355


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Equipment Item (Noise Source) Conveyor Belt Speed (m/s) Drive Size (kW)

Exisiting Proposed Exisiting Proposed

P898 4.3 5.1 630 800

P804 4.3 5.1 2 x 630 1750

STK10 4.8 5.5 2 x 250 2 x 355

SLP5 5 5 2 x 315 2 x 355

SLP6 5 5 2 x 315 2 x 355

Definitions for acronyms used in Table 4-1

P - Conveyor STK - Stacker SLP - Shiploader


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5 NOISE MODELLING – OVERVIEW Noise emissions from the BHP Billiton Port Hedland facilities consist of two components: rail and port, both of which have a separate noise model. This report covers the assessment of the port operational noise.

The Project noise model contains port equipment as noise sources operating at both the Nelson Point and Finucane Island facilities. The noise model is validated regularly in accordance with BHP Billiton Iron Ore’s ENRMP and noise objectives.

The following sections will present an overview of the Port Hedland noise model and detailed information on the inputs for the Project noise model configuration.

5.1 Noise Model Software An acoustic model has been developed using SoundPlan noise modelling program. The SoundPlan software calculates sound pressure levels at nominated receiver locations and produces noise contours over a defined area of interest around the noise sources, as required. The inputs required are noise source emission data, ground topographical data, meteorological data and noise sensitive receiver locations.

The model has been used to generate noise contours and predict noise levels at noise sensitive locations for the area around Port Hedland.

5.2 Input Data

5.2.1 Noise Source Sound Power Levels

The Port Hedland noise model contains a large amount of detail, in that it consists of approximately 400 noise sources4. The sound power levels (SWLs) of existing equipment used in the model are derived from on-site noise measurements and the SWLs of new proposed equipment have been allocated in accordance with BHP Billiton Iron Ore’s Standards. The on-site measurements include near field noise measurements, used to determine the equipment SWLs, and far field noise measurements used to validate the SWLs and the model.

5.2.2 Topography and Ground Types

Topographical information for the noise model was provided by BHP Billiton Iron Ore, which were imported into the noise model directly. Ground absorption for hard and soft surfaces is as specified by the CONCAWE5 propagation algorithm. The ground absorption for the sea surface has been set to zero (perfectly reflecting), representing a realistic worst-case condition at the frequencies of interest. Soft ground has been used for land, and stockpiles in the form of berms have been included in the model. CONCAWE is a conservative algorithm that has been shown to over predict. It is accepted by the Department of Environment Regulation (DER).

4 Each major equipment item has been modelled so that significant noise sources can be identified and appropriate noise controls can be determined.

5 CONCAWE (Conservation of Clean Air and Water in Europe) was established in 1963 by a group of oil companies to carry out research on environmental issues relevant to the oil industry. The outcome was an empirical algorithm which predicts noise levels at receiving locations.


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5.2.3 Receiving Locations

The noise model has been used to predict noise levels at six noise sensitive receivers, at which baseline noise levels have been previously established. These locations are listed in Table 5-1.

Table 5-1 Co-ordinates of receiving locations

Location GPS co-ordinates (GDA94, Zone 50)

Brearley Street 7753338 N, 667699 E

Hospital 7753424 N, 665799 E

Police Station 7753117 N, 664652 E

Pretty Pool 7752609 N, 671261 E

Wedgefield 7746567 N, 666048 E

South Hedland 7742771 N, 667852 E

5.2.4 Meteorology

Certain meteorological conditions can increase noise levels at a receiving location by a process known as refraction. When refraction occurs, sound waves that would normally propagate directly outwards from a source can be bent downwards, causing an increase in noise levels. Such refraction occurs during temperature inversions and where there is a wind gradient.

The SoundPlan noise model has a range of different algorithms that it can use to calculate noise levels for user defined meteorological conditions. The CONCAWE algorithm for industrial noise simulation has been used in the SoundPlan model to predict the sound levels at each of the point receiver locations and the surroundings. Meteorological conditions assigned to the model are in accordance with Environmental Protection Authority (EPA) recommendations for worst-case weather conditions outlined in Guidance for the Assessment of Environmental Factors, Environmental Noise, Draft No. 8, May 2007:

Day (0700 - 1900) wind speed – 4 m/s; Pasquill Stability Class E; temperature – 20°C; and relative humidity – 50%.

Night (1900 – 0700) wind speed – 3 m/s; Pasquill Stability Class F; temperature – 15°C; and relative humidity – 50%.

The night-time meteorological conditions proposed by the EPA’s Guidance Note 8 includes the refraction effects of sound waves during propagation in the parts of the atmosphere close to the ground. Worst case conditions usually occur during night time when downward refraction bends the waves towards the ground, increasing the noise levels at the receiver. The night-time meteorological conditions were used in the Project model as this represents the worst case conditions.


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5.3 Project Noise Model Configuration The Port Hedland base case model has been updated to include the proposed equipment changes, as shown in Table 5-2. The modelling was undertaken for the following two cases:

In-isolation case: This scenario only includes the new equipment operating together (i.e. excludes existing equipment). It includes the conveyor drives but not the conveyors because the existing drives will be replaced with new drives, whereas the existing conveyor line stands will remain.

Cumulative case: The cumulative case model includes the existing facility, plus all in-isolation changes listed above, as well as the ‘cumulative only’ sources listed in Table 5-2, which are the conveyors that are increasing in speed6 to accommodate the higher tonnage required.

Table 5-2 – Items of equipment modelled for the Project

Location Equipment type Equipment items included

IN-ISOLATION

Finucane Island Drives P562A(SLP5), P562B(SLP5), P566A(SLP6), P566B(SLP6), P801, P802, P803(STK9), P804, P805(STK10), P809, P865A, P865B, P898, P903A(SLP7), P903B(SL7), P906A(SLP8), P906B(SLP8)

CUMULATIVE-ONLY

Finucane Island Conveyor Speed

Increases6 P800, P801, P802, P803(STK9), P804, P805 (STK10), P809, P898

5.4 Noise Model Validation and Background Noise Biannual validation measurements are undertaken at Port Hedland. These measurements are used to validate the noise model and to determine the model accuracy. The latest measurements were undertaken in March 2015 and the model was found to be, on average, accurate to within 1.5 dB7 of the measured value.

6All modelling was undertaken under the assumption that 1 m/s increase in conveyor speed linearly increases noise by 3 dB.

7 Refer to SVT document 075063-117-100 for details of the latest biannual measurements.


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6 NOISE MODELLING RESULTS

6.1 Base Case Noise Modelling Results Consistent with the noise objectives, BHP Billiton Iron Ore’s aim is to ensure there is no net increase in the predicted cumulative noise emissions at key sensitive receptors as a result of its expansion projects. To achieve this outcome the predicted cumulative noise emissions are assessed against a set of baseline noise levels that have been established for previous growth projects.

The predicted worst-case8 cumulative noise levels at the noise sensitive receivers for the base case model are given in Table 6-1. Figure 6-1 shows the noise contours for the base case9 .

Table 6-1 Point receiver predictions for base case

Receiver locations Base Case

LA10 noise levels Assigned LA10

noise levels

Brearley Street 49.7 32

Hospital 57.2 32

Police Station 60.6 47

Pretty Pool 33.2 30

Wedgefield 35.0 39

South Hedland 26.3 35

8 Worst-case conditions are defined as worst-case operational conditions (i.e. all plant equipment operating) and worst-case environmental conditions (i.e. as defined by Environmental Protection Authority, Guidance for the Assessment of Environmental Factors, Environmental Noise, Draft No. 8, May 2007).

9 The noise contours presented are based on Port Hedland Inner Harbour Project minus the South Yard project (PHIHP-SY) as defined in SVT document 075063-66-100.


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Figure 6-1 Base case noise contours of the Port Hedland area

6.2 Project Noise Modelling Results and Noise Map The following sections present the in-isolation case and cumulative case noise modelling results for the proposed upgrades. These results are based on the configuration previously shown in Table 5-2, assuming no noise controls have been applied.

6.2.1 Project – In-isolation case

The predicted received noise levels for the in-isolation model are presented in Table 6-2. As can be seen from the results, the received noise levels exceed the assigned level at the Hospital.


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Table 6-2 Model Predicted Noise Levels at Noise Sensitive Receivers – In-isolation case

Receiver LA10 noise level

Exceedence Assigned noise level In Isolation model result

Brearley St 32 27.2 0

Hospital 32 34.6 2.6

Police Station 47 43.7 0

Pretty Pool 30 15.8 0

The in-isolation modelling results show that the BHP Billiton Iron Ore objectives are not achieved at the Hospital and therefore noise control is required. The noise controls required in order for the in-isolation case to achieve the objectives are listed in section 7. A noise contour map of the in isolation case is presented in Figure 6-2.

Figure 6-2 In-isolation Case Noise Contours

6.2.2 Project – Cumulative case

The predicted received noise levels for the cumulative model are presented in Table 6-3. As can be seen from the cumulative results, the received noise levels are higher than the base case at Brearley Street, Hospital, Police Station and Pretty Pool. The received noise levels are also higher than the base case at Wedgefield and South Hedland, however these receivers have not been considered as they meet the assigned noise levels. A noise contour map of the cumulative results is presented in Figure 6-3.


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Table 6-3: Noise modelling results predictions for the Cumulative case

Receiver LA10 noise level Increase in received

noise levels Base Case Cumulative model result

Brearley St 49.7 49.8 0.1

Hospital 57.2 57.9 0.7

Police Station 60.6 60.5 -0.1

Pretty Pool 33.2 32.9 -0.3

The cumulative case modelling results show that the noise levels have increased for the Project when compared to the base case at most receiver locations. Therefore, the BHP Billiton Iron Ore objectives have not been achieved and noise control is required. The noise controls required in order for the cumulative case to achieve the objectives are listed in section 7.5.2.

Figure 6-3 Cumulative Case Noise Contours


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7 ANALYSIS OF RESULTS, NOISE CONTROL AND ALARP

7.1 Methodology The primary purpose of environmental noise control is to propose noise control measures that will reduce noise levels at the sensitive receivers so that they will be compliant with the assigned noise levels. Unfortunately this is not always feasible, as it may not be possible to practicably implement noise control measures to the extent required to reduce noise at the receivers to achieve compliance with the assigned noise levels.

With this in mind, the noise control methodology followed in this report uses an integrated approach, taking the following factors into account:

BHP Billiton Iron Ore’s noise objectives (see section 2.1); Noise Source Contribution Ranking; Base Case Noise Levels; Prioritisation of Noise Control; and Achieving a level As Low as Reasonably Practicable (ALARP).

7.2 Noise Control Philosophy The following sections consider the recommended noise controls for the in-isolation case and the cumulative case for the Project. In recommending the noise controls, the following has been considered:

Noise Source Contribution Ranking. Effective noise control starts with determining which noise sources are contributing significantly to the noise level at the different receivers. In order to effectively reduce the noise at this receiver it is necessary to first address the primary noise sources before addressing the less significant noise source contributors. Without addressing the primary noise sources, the overall noise level will not be significantly reduced.

Baseline Noise Level. The primary (i.e. highest contribution) noise source at a receiver that has the least practical attenuation will set the baseline for the minimum achievable noise level at that receiver. From this noise level a sliding scale of diminishing returns results.

Prioritisation of Noise Control for Multiple Receivers and Sources. The Port Hedland model consists of approximately 400 noise sources and 6 noise sensitive receivers. The sensitive receivers are distributed at various distances from the facility. Each receiver has a different set of top noise source contributors. In some cases the top noise source contributions are similar for some receivers, but not for all. In order to evaluate this complex situation the analysis of multiple noise sources and receivers requires a holistic approach. This is achieved by determining the correlation between noise sources and the ranking of the noise source contribution at the different receivers.

Achieving ALARP. In order to determine what noise control is practicable, factors such as noise reduction at receiver, maintenance, safety and cost are taken into consideration. Ultimately these factors require input from multiple disciplines. For the project, a series of ALARP workshops have been undertaken which have included representation from a range of subject matter experts (see section 7.5).


075063-140-100-Rev 3-6 September 2016

7.3 Noise Control and ALARP A detailed examination of engineering noise controls for the project has been undertaken via a series of interdisciplinary ALARP workshops. An integrated approach was taken that focused on a range of factors. These included:

BHP Billiton Iron Ore’s noise objectives; Magnitude of predicted noise impacts at the sensitive receivers; Ranking of noise source contributions at the sensitive receivers; and The principle of As Low As Reasonably Practicable (ALARP), which balances noise

attenuation by considering positive and negative impacts of this attenuation on: o Safety; o Reliability with the noise attenuation in place; o On-going maintenance requirements; o Operations; and o Life cycle costs.

The prime aim of the integrated approach was to meet BHP Billiton Iron Ore’s noise objectives where reasonably practicable, based on optimisation of noise controls across BHP Billiton Iron Ore’s Port Hedland operations.

In order to ensure that noise control benefits are properly understood, various studies have been commissioned in order to determine which noise control options would provide solutions that meet BHP Billiton Iron Ore’s noise objectives. Some of these studies include the following:

Long-term measurement of a range of low noise idlers and ultra-low noise idlers for conveyor belts, aimed at determining which idler provided the best noise reduction over an extended period of time.

Biannual field noise measurements which are used to determine changes in equipment noise and quantify the received noise levels in the community and validate the noise model.

Field measurements of conveyors with varying belt widths and speeds. A reduction in belt speed results in a reduction in noise, but requires an increase in belt width.

ALARP Work Sessions. Various ALARP work sessions were held. The primary purpose of the work sessions was to investigate various noise control options in terms of practicability. The ALARP work sessions evaluated practicability in terms of the following factors:

a. Noise reduction. b. Impact on maintenance/operations. c. Impact on engineering design. d. Impact on safety. e. Benchmarking. f. Life cycle cost.

7.4 Cumulative Impact Compliance To estimate the feasibility of achieving compliance, the cumulative noise impact at the Hospital has been taken as a representative case. The rationale behind using the Hospital is that it has traditionally been used as the benchmark for noise sensitive receivers identified in BHP Billiton Iron Ore’s ENRMP (see section 3.1 for details).


075063-140-100-Rev 3-6 September 2016

BHP Billiton Iron Ore’s Port Operations has approximately 400 noise sources that contribute to the overall noise at the Hospital. Figure 7-1 details the noise reduction required for each noise source in order to achieve compliance at the Hospital, with the most stringent assigned level (i.e. 32 dB(A) at night time). Figure 7-1 also shows the accumulated noise at the Hospital as each noise source is added to the overall noise. As can be seen from Figure 7-1 it is not reasonably practicable to achieve the assigned noise level, given the amount of noise control required to reduce the facilities noise levels.

Figure 7-1 Pareto chart showing the noise contribution at the Hospital and the cumulative increase in the noise level at the Hospital with each noise source.


Doc: 075063-140-100-Rev 3-6 September 2016

7.5 Noise Control Requirements In order to achieve the BHP Billiton Iron Ore Noise Objectives, noise controls are required for both the In-isolation and Cumulative Case modelling scenarios.

7.5.1 In Isolation Noise Controls

Analysis of the In-isolation Case model data showed that noise control is required on all Project related equipment items except for stackers and shiploaders10.

Due to the extent of the noise controls required to achieve compliance, an ALARP analysis and ALARP workshop (see section 7.3) was held in order to determine if the proposed noise controls were reasonably practicable.

As a result of the ALARP workshopit was determined that:

it was not reasonably practicable for the in-isolation case (all Project upgrades considered together) to be compliant with the assigned levels;

Noise impacts from each equipment item on its own was found to achieve the assigned noise level; and

Noise control will be implemented so that the cumulative case noise levels remain the same as the base case model.

10 Previous ALARP Workshops have shown that noise control on Stackers, Reclaimers and Shiploaders are not practicable and therefore these items were not considered for noise control.



7.5.2 Cumulative Noise Controls

Noise controls are required to meet the cumulative noise objective (i.e. there is no net increase in cumulative noise as a result of the project). As the cumulative case includes existing infrastructure and the proposed upgrades, various noise control options were investigated during the study.

Of the noise controls options considered Drive P10 was selected for noise control. The effect on the cumulative levels from applying noise shielding on this drive are shown in Table 7-1.

Table 7-1 Cumulative Noise Impacts with noise control on Drive P10

Receiver

LA10 noise level Change in Noise Levels Base Case

Cumulative model result with Noise Control

Brearley St 49.7 49.4 -0.3

Hospital 57.2 57.2 0

Police Station 60.6 60.4 -0.2

Pretty Pool 33.2 32.7 -0.5



8 CONCLUSIONS Based on the outcomes of the noise modelling, noise control analysis and ALARP workshop, the following has been concluded:

8.1 In-isolation Case In-isolation Case - The In-isolation assessment and ALARP process has deemed it not practicable to meet the level of reduction required for the In-isolation Case. Therefore, no noise control is recommended for the in isolation case. Additional justification for not undertaking noise control for equipment in the In-isolation Case includes:

o There is no noise benefit to the community if in isolation noise controls are implemented on individual equipment items because they do not reduce the cumulative noise levels in the Town of Port Hedland; and

o Unlike previous large expansions, the equipment proposed to be upgraded cannot operate meaningfully on its own, so applying noise control in-isolation is not applicable.

8.2 Cumulative Case o In order to meet the cumulative base case noise levels and achieve BHP Billiton Iron

Ore’s noise objectives, shielding on P10 drive is required.


Doc: 075063-140-100-Rev 3-6 September 2016 Page A-1

Appendix A. Applicable Noise legislation Noise management in Western Australia is implemented through the Environmental Protection (Noise) Regulations 1997 which operate under the Environmental Protection Act 1986. The Regulations specify maximum noise levels (assigned levels), which are the highest noise levels that can be received at noise sensitive premises, commercial premises and industrial premises.

Assigned noise levels have been set differently for the different types of premises. For noise sensitive premises, i.e. residences, an ‘influencing factor’ is incorporated into the assigned noise levels.

The regulations define three types of assigned noise level:

LAmax assigned noise level means a noise level which is not to be exceeded at any time;

LA1 assigned noise level which is not to be exceeded for more than 1% of the time;

LA10 assigned noise level which is not to be exceeded for more than 10% of the time.

The LA10 noise limit is the most significant for this study since this is representative of continuous noise emissions from the port facility. Table A 1 shows the assigned noise levels for noise sensitive premises. As can be seen from the table the time of day also affects the assigned levels for noise sensitive residences.

Table A 1 Assigned noise levels for noise sensitive premises11

Type of premises receiving noise Time of day Assigned level dB(A)

LA10 LA1 LAmax

Locations within 15 m of a building

directly associated with a noise sensitive use.

0700 to 1900 hours Monday to Saturday

45+ influencing

factor

55+ influencing

factor

65+ influencing

factor

0900 to 1900 hours Sundays and public holidays

40+ influencing

factor

50+ influencing

factor

65+ influencing

factor

1900 to 2200 hours all days 40+

influencing factor

50+ influencing

factor

55+ influencing

factor

2200 hours on any day to 0700 hours Monday to Saturday and 0900 hours Sunday and public

holidays

35+ influencing

factor

45+ influencing

factor

55+ influencing

factor

Locations further than 15 m from a building directly associated with a noise

sensitive use. All hours 60 75 80

Commercial premises All hours 60 75 80

Industrial and utility premises All hours 65 80 90

11 Environmental Protection (Noise) Regulations 1997



Since the port facilities operate 24 hours a day, the most stringent noise limit that would apply to noise emissions will occur during night time hours.

Table A 2 Assigned penalties for intrusive or dominant noise characteristics12

Adjustment where noise emission is not music these adjustments are cumulative to a maximum of 15 dB

Where tonality is present Where modulation is present Where impulsiveness is present

+5 dB +5 dB +10 dB

Noise levels at the receiver are subject to penalty corrections if the noise exhibits intrusive or dominant characteristics, i.e. if the noise is impulsive, tonal or modulated. That is, the measured or predicted noise levels are increased by the applicable penalties, and the adjusted noise levels must comply with the assigned noise levels. Regulation 9 sets out objective tests to assess whether the noise is taken to be free of these characteristics.

Assigned Level Evaluation for Port Hedland

As the assessment is for a multitude of different premises, different assigned noise levels will be applicable to different areas of the town. As can be seen from Table A 1, different premises zoning classifications have different assigned levels. Therefore, industrial premises have an assigned LA10 value of 65 dB(A), commercial premises have an assigned LA10 value of 60 dB(A) while residential premises have different assigned levels, depending on the day of the week, the time of day and surrounding land use. The relevant zone for each receiver is shown in Table A 3.

Table A 3 Applicable Zones

Residential Commercial (60 dB(A)) Industrial (65 dB(A))

Hospital Pretty Pool South Hedland Brearley Street Wedgefield Residential

Police Station (influencing factor = 17 dB for residents at police station)

Wedgefield Industrial Estate

The most stringent assigned levels are applicable to residential areas at night time (2200 to 0700), on weekends from 0900 and public holidays. Residential areas will therefore be the focus of the assessment.

Influencing Factors

The influencing factor is calculated at the noise sensitive premises and the calculated value is added to the assigned noise levels as shown in Table A 1. The influencing factor depends on land use zonings within 100 metres and 450 metres radius from the noise receiver. The value is dependent on:

12 Environmental Protection (Noise) Regulations 1997



the proportion of industrial land use zonings;

the proportion of commercial zonings; and

the presence of major roads within the radius circles.

Due to the large number of noise sensitive premises an influencing factor has not been calculated for each premises, but rather an influencing factor has been calculated for specific areas as shown in Table A 1 and Table A 4, which is considered representative of the area. As can be seen from the figure, and as expected, the influencing factor and therefore the assigned noise level, varies within the town area.

Table A 4 Influencing factor for various locations in Port Hedland

Residential area Influencing factor

Police Station 17 dB

Wedgefield 9 dB

Hospital 2 dB

Brearley Street 1 to 2 dB

Pretty Pool 0

South Hedland 0

Figure A 1 Influencing factors that can be applied to different areas of Port Hedland, image © 2009 Google – Map Data © 2009 DigitalGlobe

Corrections for Characteristic of Noise

Noise levels at the receiver are subject to penalty corrections if the noise exhibits intrusive or dominant characteristics, i.e. if the noise is impulsive, tonal, or modulating. Table A 5 presents the



penalties incurred for noise that exhibits intrusive or dominant characteristics (i.e. if it has tonal, modulating or impulsive characteristics).

For the cumulative case, tonality was assessed for the Port Hedland area using 1/3rd octave measurements taken over 30 minute periods at various locations in the Town of Port Hedland. It was found that tonal signals were present in areas extending from McKay Street to the corner of McGregor and Lukis streets. A 5 dB penalty therefore applies to this area and will be applied to the cumulative case. Beyond the McGregor and Lukis street intersection no tonal characteristics could be attributed to the BHP Billiton Iron Ore facility that was found within the noise measurements. The 5 dB penalty should therefore not be applied to these areas.

As the existing ambient noise levels are high, the tonal penalty has not been applied to the in-isolation case, as noise from the existing plant will mask any tonality from the new plant.

Assigned Noise Levels for Port Hedland

In order to ensure that the new plant does not significantly contribute to the received noise levels at the receivers in Port Hedland and South Hedland, the assigned levels have been reduced by 5 dB in accordance with the regulation for a non-significant contributor. Taking into account penalties and influencing factors, the assigned noise levels at the various receivers used in the Port Hedland model are presented in Table A 5.

Table A 5 Assigned noise levels for noise sensitive premises including 5 dB offset for non-significant contributor

Position Influencing factor in dB

LA10 Assigned noise levels in dB(A)13 Non significant

contributor

LA10 Assigned noise levels in dB(A)

Day Evening Night Day Evening Night

Brearley Street 2 47 42 37 5 42 37 32 Hospital 2 47 42 37 5 42 37 32 Police Station 17 62 57 52 5 57 52 47 Pretty Pool 0 45 40 35 5 45 40 30 Wedgefield 9 54 49 44 5 49 44 39

South Hedland 0 45 40 35 5 45 40 30

13 LA10 assigned noise level that is not to be exceeded for more than 10% of the time. The LA10 noise limit is the most significant for this study since this is representative of continuous noise emissions from the port facility.


Doc: 075063--140-100-Rev3-6 September 2016 Page B-1

Appendix B. Source Sound Power Level

Source O/A in dBA

Sound Power Level in dB lin

31 63 125 250 500 1k 2k 4k 8k

CD 1 111.2 122.9 123.1 118.2 113.9 107.5 104.3 100.8 97.6 88

CD 2 111.2 122.9 123.1 118.2 113.9 107.5 104.3 100.8 97.6 88

CD 3 111.2 122.9 123.1 118.2 113.9 107.5 104.3 100.8 97.6 88

Drive P10 114.3 103.2 110.6 106.5 105.8 112.3 111.7 103.3 92.2 82.5

Drive P11 101.8 99.7 100.5 104.9 102.8 98 96.3 94.5 88.1 76.4

Drive P113 W 114.2 103.9 105 109.8 108.7 110.5 110.4 107.9 96.9 94.6

Drive P117 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P118A 108.4 134.2 123 111.9 106.4 107 103.8 93.6 85.2 77.8

Drive P118B 108.4 134.2 123 111.9 106.4 107 103.8 93.6 85.2 77.8

Drive P119 E Shiploader 2

101.8 99.7 100.5 104.9 102.8 98 96.3 94.5 88.1 76.4

Drive P119 W Shiploader 2

101.8 99.7 100.5 104.9 102.8 98 96.3 94.5 88.1 76.4

Drive P12 N 110 107.7 109.9 108.5 104.6 105.6 108.4 94.4 93.6 88.5

Drive P12 S 110.9 103.5 111 109.9 106.4 107.7 108.9 95.9 91.9 85.7

Drive P14 N 107.1 106.9 112.3 108.3 105.7 103.4 103.9 96.8 93.2 85.9

Drive P14 S 106.8 105.4 110.9 107.7 106.1 103.1 103.7 96.1 92.2 86

Drive P16 N 118.6 104.9 109.8 111 108.9 114.7 110 115.3 102.2 95.4

Drive P16 S 109.6 103.8 107.8 106.5 105.4 106.1 106.6 101.1 92.4 86.2

Drive P2 N 105.7 100.9 104.2 104.1 103 104.3 98.9 99.6 87.7 79.3

Drive P2 S 107 101.2 104.7 102.8 104.3 107.6 100.9 96.5 87.3 79

Drive P201N 111.3 107 110.8 106.4 106.4 110.4 106.4 103.2 94.2 86.7

Drive P201S 111.3 107 110.8 106.4 106.4 110.4 106.4 103.2 94.2 86.7

Drive P202 113.3 103.3 106.7 106.1 104.8 105.3 109.7 108.3 97.5 93.5

Drive P203 A 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive P203 B 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive P205 E 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive P206 111.3 107 110.8 106.4 106.4 110.4 106.4 103.2 94.2 86.7

Drive P21 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P22 S 112.1 97 102.2 104.4 103.8 102.2 108.6 107.6 93.6 92.5

Drive P23 N 111.6 95.9 102.6 102.5 104.3 109.7 107 104.3 98.1 89.1

Drive P24 E 102.5 95.1 98.6 106 99.7 99.2 97.4 95.4 89.3 87.8

Drive P25A 108.4 134.2 123 111.9 106.4 107 103.8 93.6 85.2 77.8

Drive P25B 108.4 134.2 123 111.9 106.4 107 103.8 93.6 85.2 77.8



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

Drive P26 E Shiploader 1

101.8 99.7 100.5 104.9 102.8 98 96.3 94.5 88.1 76.4

Drive P26 W Shiploader 1

101.8 99.7 100.5 104.9 102.8 98 96.3 94.5 88.1 76.4

Drive P29 114.3 103.2 110.6 106.5 105.8 112.3 111.7 103.3 92.2 82.5

Drive P350 98.4 93.1 101.2 101.2 93.3 96 95.9 85.1 77.1 70.4

Drive P351 113.3 103.2 107.6 105.4 105.4 110.4 110.9 102.8 95.7 88.9

Drive P353 N 91.3 93.7 90.7 89.6 91 91.5 84.9 80.2 71.3 65.5

Drive P354 108.9 99.6 103.4 103.8 103.5 104.7 107.2 96.3 88.4 84.3

Drive P355 113.8 102.1 104.2 102.4 106.1 111.2 111.5 103.1 95.3 83.6

Drive P501 114.3 103.9 105.7 104.3 106.3 112 112 103 94.4 84.9

Drive P502 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P503 N 114.2 102.2 107.3 109 106.5 107 112.3 106.2 95.6 88.7

Drive P503 S 115.8 102 107.5 109.7 107.3 107.9 113.6 109 97.7 89.8

Drive P505 A 109 106.9 108.6 108.5 108.5 103.4 106.5 99.2 90.6 85.1

Drive P505 B 109 106.9 108.6 108.5 108.5 103.4 106.5 99.2 90.6 85.1

Drive P510 N 111.5 101.4 105.5 107.4 103.8 107.9 108.6 103.6 94.7 86.4

Drive P510 S 107.2 101.6 105.8 104.8 102.1 105.9 103.7 96.8 89.4 82.8

Drive P511 W 117.3 104.3 105.4 108.4 106.6 110.9 115 110.2 99.4 91

Drive P512 N 114.1 105.5 106.5 107.5 106.2 107.7 111.7 106.9 98.3 89.9

Drive P513 W 113 102.1 103.6 104.7 104.5 105.4 112 101.2 94.6 88.3

Drive P514 102.5 95.1 98.6 106 99.7 99.2 97.4 95.4 89.3 87.8

Drive P516 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P551 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P551A 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P552 113.8 102.1 104.2 102.4 106.1 111.2 111.5 103.1 95.3 83.6

Drive P560 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive P561 112.7 103 107.9 108.8 109.7 110.3 106.9 107.1 90.1 82.1

Drive P562 Shiploader 5 A

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

Drive P562 Shiploader 5 B

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

Drive P563 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P564 112.7 103 107.9 108.8 109.7 110.3 106.9 107.1 90.1 82.1

Drive P565 112.7 103 107.9 108.8 109.7 110.3 106.9 107.1 90.1 82.1

Drive P566 Shiploader 6 A

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

Drive P566 Shiploader 6 B

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

Drive P601 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P602 102.5 95.1 98.6 106 99.7 99.2 97.4 95.4 89.3 87.8

Drive P610 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P611 102.5 95.1 98.6 106 99.7 99.2 97.4 95.4 89.3 87.8

Drive P620 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive P621 W 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive P700 E 114.6 110 106.9 106.8 108.2 109.9 112.8 104.2 94.2 87.7

Drive P700 W 108.9 111.2 112.9 108.8 108.5 106.1 101.9 102.7 95.5 92.4

Drive P701 E 115.2 103.1 106.2 106.6 106.2 105.2 113.5 107.9 96.4 92.5

Drive P701 W 113.4 99.9 104.7 106.5 107 108.5 111.1 104.8 96.5 92.7

Drive P702 A 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive P702 B 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive P730 111.3 107 110.8 106.4 106.4 110.4 106.4 103.2 94.2 86.7

Drive WY P702 A 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive WY P702 B 110.1 105.8 108.6 106.3 107.5 110.6 103.9 99.4 90.2 82

Drive WY P704 104.5 100.2 105.6 102.9 101.6 100.9 101.8 94.8 88.6 81

Drive WY P705 E 113.8 105.8 107.9 109 107.5 109 112.3 102 93.2 85.9

Drive WY P800 112.8 108 111.5 102.9 104.1 106.5 111.7 99.9 92.3 84.2

Drive WY P801 W 108 133.8 122.6 111.5 106 106.6 103.4 93.2 84.8 77.4

Drive WY P802 S 108.5 134.3 123.1 112 106.5 107.1 103.9 93.7 85.3 77.9

Drive WY P804 W 108.4 134.2 123 111.9 106.4 107 103.8 93.6 85.2 77.8

Drive WY P807 E 107.4 99 102.2 101.8 101.9 105.1 104.5 97.5 87.1 79.1

Drive WY P807 W 106.6 102.9 105.1 101.6 102.1 108.1 99.8 92.1 86.6 79.3

Drive WY P808 104.5 100.2 105.6 102.9 101.6 100.9 101.8 94.8 88.6 81

Drive WY P809 S 108 133.8 122.6 111.5 106 106.6 103.4 93.2 84.8 77.4

Drive WY P810 E 104.8 99.4 104.8 101.3 101.9 102.9 101.4 94.9 82.7 67.7

Drive WY P811 N 106 104.2 103.4 102.6 105.2 104.5 102.1 95.7 84.2 67.3

Drive WY P812 N 96.5 101.1 103.3 98.9 96.3 92.8 92.4 88 77.9 81.8

Drive WY P813 101.8 99.7 100.5 104.9 102.8 98 96.3 94.5 88.1 76.4

Drive WY P815 W 104.5 100.2 105.6 102.9 101.6 100.9 101.8 94.8 88.6 81

Drive WY P816 E 108.8 103.9 106.6 105.5 104 104.4 106 101.3 90.2 81.7

Drive WY P817 108.8 103.9 106.6 105.5 104 104.4 106 101.3 90.2 81.7

Drive WY P818 108.2 102.3 108.3 109.4 105.1 105.3 104.4 98.1 93.6 96.5



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

Drive WY P861 SE 112.7 110.2 111.9 107.9 110.3 113.4 105.3 102.6 96.9 90.2

Drive WY P862 W 113.4 101.1 103.4 103.7 104.3 110.9 111.4 101 92.2 83.6

Drive WY P863 101.8 99.7 100.5 104.9 102.8 98 96.3 94.5 88.1 76.4

Drive WY P865 E 108.4 134.2 123 111.9 106.4 107 103.8 93.6 85.2 77.8

Drive WY P865 W 108.4 134.2 123 111.9 106.4 107 103.8 93.6 85.2 77.8

Drive WY P866 110.4 100.7 99.1 101 102.6 104.7 108.7 100.9 92.6 79.7

Drive WY P885 109.1 101.9 102 102.8 108.1 106.1 106.2 98.4 89.6 84

Drive WY P886 112.8 108 111.5 102.9 104.1 106.5 111.7 99.9 92.3 84.2

Drive WY P887 N 110.4 100.7 99.1 101 102.6 104.7 108.7 100.9 92.6 79.7

Drive WY P887 S 110.5 101.6 98.8 101.6 102.6 108.7 107.5 100.5 93.1 79.6

Drive WY P890 N 110.4 100.7 99.1 101 102.6 104.7 108.7 100.9 92.6 79.7

Drive WY P890 S 114.3 102 105.3 105.5 107.2 111.6 111.7 103.8 98.7 86.6

Drive WY P891 109.8 101.6 101.4 100.4 100.3 106.9 106.9 102 89 82.3

Drive WY P891 E 109.8 101.6 101.4 100.4 100.3 106.9 106.9 102 89 82.3

Drive WY P892 112.7 110.2 111.9 107.9 110.3 113.4 105.3 102.6 96.9 90.2

Drive WY P893 N 110.4 100.7 99.1 101 102.6 104.7 108.7 100.9 92.6 79.7

Drive WY P893 S 110.5 101.6 98.8 101.6 102.6 108.7 107.5 100.5 93.1 79.6

Drive WY P895 112.1 97 102.2 104.4 103.8 102.2 108.6 107.6 93.6 92.5

Drive WY P896 102.5 95.1 98.6 106 99.7 99.2 97.4 95.4 89.3 87.8

Drive WY P897 105.7 100.2 104.7 105.2 103.1 103.6 101.3 96.7 93.2 90.1

Drive WY P898 108 133.8 122.6 111.5 106 106.6 103.4 93.2 84.8 77.4

Drive WY P901 113.4 101.1 103.4 103.7 104.3 110.9 111.4 101 92.2 83.6

Drive WY P902 113.4 101.1 103.4 103.7 104.3 110.9 111.4 101 92.2 83.6

Drive WY P903 Shiploader 7A

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

Drive WY P903 Shiploader 7B

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

Drive WY P904 113.4 101.1 103.4 103.7 104.3 110.9 111.4 101 92.2 83.6

Drive WY P905 113.4 101.1 103.4 103.7 104.3 110.9 111.4 101 92.2 83.6

Drive WY P906 Shiploader 8A

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

Drive WY P906 Shiploader 8B

105 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

Drive WY P910 no1 112.7 103 107.9 108.8 109.7 110.3 106.9 107.1 90.1 82.1

Drive WY P910 no2 112.7 103 107.9 108.8 109.7 110.3 106.9 107.1 90.1 82.1

Drive WY P911 117.3 105.2 108.8 110.3 108.6 114.2 110 113.2 102.3 94.9

Drive WY P913 112.1 101.6 106.8 105.7 103 105.8 108.8 106.3 98.7 90.5



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

Drive WY P914 112.1 101.6 106.8 105.7 103 105.8 108.8 106.3 98.7 90.5

LRP1 NP 114.2 121.6 125.5 119.9 116.3 110.6 107.5 104.9 101.7 93.4

LRP2 FI 110 120 123 116.3 111.9 107.1 103.3 100 94.7 85.8

LRP3 NP 114.2 121.6 125.5 119.9 116.3 110.6 107.5 104.9 101.7 93.4

P10 89.2 104 109.6 109.5 108.8 106 101.2 96.7 88.1 83.8

P11 91.2 105.9 112.7 113 110.6 106.4 105.5 102.6 95.2 90.5

P117 89.7 116.4 116 113.5 111.5 106.3 101.1 99.5 92.1 86.5

P118 87.2 118.4 121.9 122 117.9 111.4 109.2 105.8 97.7 90.7

P119 Shiploader 2 87.2 107.8 111.3 111.4 107.3 100.8 98.6 95.2 87.1 80.1

P12 83.5 120.6 124.9 116.3 114.3 110.4 104.5 104.3 95.3 86.1

P13 Stacker 8 87.5 106.4 109.8 109.2 108.8 101.8 95.7 94.3 85.6 80.1

P13 Stacker 8 Chute

106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6

P13 Stacker 8 Drive 106.8 106.7 106.2 108.4 104.9 104.9 101.3 99.5 91.2 86.9

P14 84 113.7 114.9 110.4 109.8 109.5 108.2 106.9 100 93.2

P15 Stacker 5 85.9 97.4 104.3 104.2 103.2 100.1 97.2 95.8 86 79.8

P15 Stacker 5 Chute

106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6

P15 Stacker 5 N Drive

106.1 103.4 103.7 105.2 104 102.9 101.2 99.5 92.2 87.2

P15 Stacker 5 S Drive

105.8 101.6 104.4 107.8 104.4 102.8 101.1 98.3 91.8 85.4

P16 90.8 123.4 120.2 118.2 117.9 119.9 115.2 108.4 100.8 94.3

P2 91.6 115.7 119.5 117.4 115.6 111.5 106.1 105.6 100.2 93.4

P201 85.2 112.3 119.2 113.4 110.8 106.6 101.1 96.7 88.1 79.9

P202 89.2 107.8 113.5 110.3 108.6 107.4 102.3 101.8 97.5 90.1

P203 88.6 114.9 120.2 115.7 112.5 110.3 106.6 102.5 97.4 93.8

P205 86.4 112.6 115.9 110.8 109.3 107.8 103.8 100.4 93.2 89.1

P206 85.3 110.4 116.3 112.6 108.2 106.7 102.4 97.7 91.7 86.9

P21 90.8 109.3 110.1 107.5 105 104.1 98.9 96.1 89.2 83.5

P22 90.5 111.4 115.3 112.3 109.4 106.1 101.4 101 90.3 84.9

P23 92.4 111.1 109.4 108.3 109.7 110.3 103.6 98.9 90 84.2

P24 88.8 109.1 113.7 114.2 110.1 107.1 102 100.8 91.8 85.1

P25 87.2 118.4 121.9 122 117.9 111.4 109.2 105.8 97.7 90.7

P26 Shiploader 1 87.2 107 110.5 110.6 106.5 100 97.8 94.4 86.3 79.3

P29 89.2 104 109.6 109.5 108.8 106 101.2 96.7 88.1 83.8

P32 Reclaimer 5 92.1 108.1 112.5 112 110.8 107.7 103.2 98.2 90.6 85.2



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

P32 Reclaimer 5 Bucket Drive

116.3 101.5 105.5 110.3 113.5 112.2 113.6 107.1 100.1 96.8

P32 Reclaimer 5 Chute

106.1 101 98 100.5 101.2 101.4 102.8 98.1 95.1 87.3

P32 Reclaimer 5 Drive

115.8 104.7 107.4 109.6 109.9 109 114.2 106.3 97 88.4

P350 89.7 116.7 120.5 115.7 113.4 112.4 108.2 103.2 97.3 92.8

P351 88.9 104.2 108.9 105.8 105 102.5 96.7 92.9 85 78.9

P353 93.9 114.8 117.7 115.6 111.8 110.1 106.3 103.9 96.1 89.9

P354 84.9 107.1 111.8 108.7 107.9 105.4 99.6 95.8 87.9 81.8

P355 85.2 105.8 112.7 106.9 104.3 100.1 94.6 90.2 81.6 73.4

P501 86.2 109.7 108.5 110.5 111.9 112 108 103 95.3 87.7

P502 90.3 114.4 120.3 116.7 112.2 110.8 106.5 101.7 95.8 90.9

P503 86 114.9 118.8 116 115.3 115.7 109.2 104.9 96.5 90.4

P504 Stacker 6 96.7 106 110.3 111.2 109.2 110.3 110.1 106.3 98.5 92.9

P504 Stacker 6 Chute

106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6

P504 Stacker 6 Drive

108.5 98.7 104.1 107.2 105.5 104.7 103.8 102.5 92.7 85.7

P505 86 118.3 115 118 117.4 115.7 108 103.3 94.1 89.4

P506 Stacker 7 96.7 105.7 110 110.8 108.9 110 109.8 106 98.2 92.6

P506 Stacker 7 Chute

106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6

P506 Stacker 7 Drive

108.5 98.7 104.1 107.2 105.5 104.7 103.8 102.5 92.7 85.7

P509 Reclaimer 6 94.6 105.9 111.6 112.2 112.6 111.5 105.1 100.1 93.1 86.8

P509 Reclaimer 6 Bucket Drive

111 99.4 101.4 106.2 106.8 104.7 109.1 101.7 95.9 86

P509 Reclaimer 6 Chute

106.1 101 98 100.5 101.2 101.4 102.8 98.1 95.1 87.3

P509 Reclaimer 6 Drive

115.7 104.1 106.1 110.9 111.4 109.4 113.8 106.4 100.5 90.6

P510 86 120.3 116.7 118.3 117.7 114.8 109.3 105.1 96.4 91.1

P511 86.6 102.1 107.5 109 109.8 107.8 104 99.5 93.3 88.8

P512 87.7 117.4 115.5 112.6 112.3 110.3 105.9 101.9 93.4 89.4

P513 86.3 118.1 115.4 116.7 118.2 114.7 109.5 105.5 99.6 100

P514 85 104.7 108.3 104.5 104.6 101.1 97 89.5 80.1 76.5

P516 90.3 115.5 121.5 117.8 113.3 111.9 107.6 102.9 96.9 92.1

P551 90.3 111.2 117.1 113.4 109 107.6 103.3 98.5 92.5 87.7



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

P551A 90.3 111.2 117.1 113.4 109 107.5 103.2 98.5 92.5 87.7

P552 81.3 101.6 104.1 104 102.4 100.8 98.5 95 88.7 85.2

P560 84.9 109 111.4 107.8 106 104 98.4 96 89.8 84.1

P561 84.2 111.7 117.4 114.2 112.5 111.4 106.3 105.7 101.5 94.1

P562 Shiploader 5 85.2 105.8 112.7 106.9 104.3 100.1 94.6 90.2 81.6 73.4

P563 84.2 102.8 108.5 105.3 103.6 102.5 97.3 96.8 92.6 85.1

P564 East 79.7 87.7 93.4 90.2 88.9 88.4 83.4 82.9 78.4

P564 North 47.2 93 82.8 68.6 58.7 50.1 44.6

P564 Roof 47.7 94.5 84.2 70 60 51.5 45.9

P564 sec2 slanted part

87.2 107.5 113.2 110 108.3 107.1 102 101.5 97.2 89.8

P564 sec3 ground elev

87.2 109.7 115.4 112.2 110.5 109.3 104.2 103.7 99.4 92

P564 South 80.7 109.6 115.3 112.1 111 110.9 106 105.4 100.8

P564 West 79 86.8 92.5 89.3 88 87.6 82.7 82.1 77.6

P565 84.2 111.7 117.4 114.2 112.5 111.4 106.3 105.8 101.5 94.1

P566 Shiploader 6 85.2 106.5 113.4 107.6 105 100.8 95.3 90.9 82.3 74.1

P601 91.1 107.4 111 113.2 113.8 112.3 107.3 101.5 92.4 87.6

P602 90.3 117 122.9 119.2 114.8 113.3 109 104.3 98.3 93.5

P610 91.5 108.8 112.5 113.4 114.3 114 107.8 102 93.9 89.4

P611 91.5 106.7 110.4 111.2 112.1 111.8 105.7 99.8 91.7 87.3

P620 86.3 111.1 113.6 113.5 111.9 110.3 108 104.5 98.2 94.7

P621 89 110.7 117.3 112 110.6 107.9 104.1 100.3 94.4 89.9

P700 91.1 119.8 123 123.3 120.4 120.3 114.2 111.2 104.5 97.5

P701 89.3 117.9 117 117 118.3 115.5 109.9 106.2 100.9 93.9

P702 87.5 107.8 110.4 108.5 106.8 104 100.9 98.5 94.5 87.5

P730 85.2 113.1 118.8 115.6 113.9 112.8 107.6 107.1 102.9 95.4

P775 82.9 104.7 102 103.3 104.8 101.3 96.1 92.1 86.2 79.6

P775 Drive 105 95.7 99.5 99.9 99.6 100.8 103.3 92.4 84.5 80.4

P776 90.3 106.4 112.4 108.7 104.2 102.8 98.5 93.7 87.8 83

P776 Drive 105 95.2 100.6 103.7 102 101.2 100.3 99 89.2 82.2

T250 91.7 83.2 88.1 87.1 85 90.9 87.8 81.4 74.7 67.8

TS1 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS2/354 113.5 105 109.9 108.9 106.7 112.7 109.6 103.2 96.5 89.6

TS20 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS201 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

TS202 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS207 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS22 88.7 80.2 85.1 84.1 81.9 87.9 84.8 78.4 71.7 64.8

TS26 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS3 114.7 106.2 111.1 110.1 108 113.9 110.9 104.4 97.7 90.8

TS350 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS351 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS355 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS4 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS501 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS502 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS503 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS504/515 88.7 80.2 85.1 84.1 81.9 87.9 84.8 78.4 71.7 64.8

TS505 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS506 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS513 91.7 83.2 88.1 87.1 85 90.9 87.8 81.4 74.7 67.8

TS551 88.7 80.2 85.1 84.1 81.9 87.9 84.8 78.4 71.7 64.8

TS560 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS563 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS601 113.5 105 109.9 108.9 106.7 112.7 109.6 103.2 96.5 89.6

TS602 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS603 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS604 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS700 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS701 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS730 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

TS774 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

TS775 98.7 90.2 95.1 94.1 91.9 97.9 94.8 88.4 81.7 74.8

TS780 91.7 83.2 88.1 87.1 85 90.9 87.8 81.4 74.7 67.8

TS8 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY CD4 111.2 122.9 123.1 118.2 113.9 107.5 104.3 100.8 97.6 88

WY CD5 111.2 122.9 123.1 118.2 113.9 107.5 104.3 100.8 97.6 88

WY P702 93.9 119.8 122.2 118.1 114.2 110.9 110 107.8 104 100.6

WY P704 86 103.2 110.8 113.3 111.3 106.7 104.8 104.8 99.6 96.8

WY P705 88 114.1 124.5 121.4 116.4 114 108 104.5 95.9 90.7



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

WY P800 96.1 116.7 124.9 120 118.1 116.1 110.9 109.3 102.6 95.5

WY P801 87.9 112.1 110.7 112.1 114.7 109.7 104 100.6 93.6 87.5

WY P802 94.1 124.9 127.7 126.5 123.8 122.8 117.1 115.2 108.8 100.3

WY P803 Stacker 9 90 104.6 109.6 109.1 108.2 103.7 95.7 93.6 85 60.4

WY P803 Stacker 9 Chute

106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6

WY P803 Stacker 9 Drive

107.7 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

WY P804 94.7 127.9 129.1 126.7 125 122.9 119.7 117.2 107.8 98.3

WY P805 Stacker 10

90 96.7 101.1 101.9 100 101.1 100.9 97.1 89.2 83.7


106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6


107.7 133.5 122.3 111.2 105.7 106.3 103.1 92.9 84.5 77.1

WY P806 Reclaimer 7

94.6 105.8 111.5 112.1 112.5 111.4 105 100 93 86.7

WY P806 Reclaimer 7 Bucket

Drive

111 99.4 101.4 106.2 106.8 104.7 109.1 101.7 95.9 86

WY P806 Reclaimer 7 Chute

106.1 101 98 100.5 101.2 101.4 102.8 98.1 95.1 87.3

WY P806 Reclaimer 7 Drive

115.7 104.1 106.1 110.9 111.4 109.4 113.8 106.4 100.5 90.6

WY P807 90 117.3 123.2 120.9 119.1 119.9 112.7 111.1 103.8 95.9

WY P808 92.3 117.5 118.7 116.3 114.7 112.6 109.4 106.8 97.4 88

WY P809 B 91.3 109.8 113.4 113.5 114.2 111.2 104.3 102 94.2 87.1

WY P809 rev 86.8 110.7 114.3 114.4 115.1 112.1 105.2 102.9 95.1 88

WY P810 87 110.5 117.6 116.3 117.4 112.3 106.2 103.2 92.9 97

WY P811 87.3 116.7 120.1 116.5 114.3 114.3 107.5 104.1 97 90.2

WY P812 84.6 115.8 120.4 119.5 116.4 110.8 105.3 103.8 95.5 89.6

WY P813 Shiploader 4

85.3 103.9 109.8 106.1 101.7 100.2 95.9 91.2 85.2 80.4

WY P815 88.6 114.6 118.5 117.3 115.6 110.3 105.3 102.4 96.5 93.7

WY P816 99.7 124.8 126.4 122 120.5 119.4 118 116.9 111.2 107

WY P817 99.7 124.8 126.4 122 120.5 119.4 118 116.9 111.2 107

WY P818 85.7 107.7 111.2 111.3 107.2 100.7 98.5 95.1 87 80

WY P861 82.8 115.6 116.3 116.7 112.2 108.2 101.8 98.8 92.7 88.8

WY P862 87.7 121 121.1 120.5 117.2 114.5 110.9 106.5 98.9 94



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k


85.3 103.9 109.8 106.1 101.7 100.2 95.9 91.2 85.2 80.4

WY P865 88.5 115.6 120.2 117.7 116.6 116.6 109.9 107.8 101.5 94.4

WY P866 91.7 110.4 113.1 111.9 109.2 108.3 102.6 100.7 94.2 85.7

WY P885 91.7 111.3 114.1 112.8 110.2 109.2 103.5 101.6 95.1 86.6

WY P886 87.3 114.7 115.8 113.5 111.8 109.7 106.5 104 94.6 85.1

WY P887 82.7 114.1 115.2 114.3 112.5 111 106.2 104.4 96.1 90.8

WY P888 Stacker 11

87.7 95.6 100.9 101.7 99.8 100.9 100.7 96.9 89.1 83.5


106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6


108.5 98.7 104.1 107.2 105.5 104.7 103.8 102.5 92.7 85.7

WY P889 Reclaimer 8

83.1 103.9 106.3 105.5 102.9 98.9 91.7 88.4 81.6 79

WY P889 Reclaimer 8 Bucket

Drive

113 102.8 102.7 106.6 114.3 111.2 108.5 101.4 98.2 95.7


106.1 101 98 100.5 101.2 101.4 102.8 98.1 95.1 87.3

WY P889 Reclaimer 8 Drive

110 96.6 99.8 100.4 102.8 110 104.4 101.6 94.4 83

WY P890 83.1 114.9 115 113.6 112.2 112.2 106.6 104.1 97.4 91.8

WY P891 85.7 104.1 109.7 109.9 110.2 106.5 98.4 96.5 88.4 81.1

WY P892 90 109.5 115.4 113.1 111.2 112.1 104.9 103.3 96 88.1

WY P893 85.6 117.8 114.8 113.7 115.1 115.7 109 104.3 95.4 89.6

WY P894 Stacker 12

80.8 101.6 103.7 99.7 98.4 96 87.8 85.7 74.4 92.9


106.3 97.3 105 108.6 105.1 105.4 101.1 96.5 89.2 81.6


87.2 86.2 91 91.3 88.1 85.8 81.5 76.9 69.2 62

WY P895 90.3 112.3 118.3 114.6 110.1 108.7 104.4 99.6 93.7 88.9

WY P896 85.2 106.5 113.4 107.6 105 100.8 95.3 90.9 82.3 74.1

WY P897 85.3 114.4 120.3 116.6 112.2 110.7 106.4 101.7 95.7 90.9

WY P898 90.9 109.3 113.8 111.3 110.3 110.2 103.6 101.5 95.2 88.1

WY P901 75.3 104.4 110.3 106.6 102.2 100.7 96.4 91.7 85.7 80.9

WY P902 85.3 115.3 121.2 117.5 113.1 111.6 107.3 102.6 96.6 91.8


85.3 103.7 109.6 105.9 101.5 100 95.7 91 85 80.2

WY P904 75.3 104.3 110.2 106.5 102.1 100.6 96.3 91.6 85.6 80.8



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

WY P905 85.3 115.4 121.3 117.6 113.2 111.7 107.4 102.7 96.7 91.9


85.3 103.6 109.5 105.8 101.4 99.9 95.6 90.9 84.9 80.1

WY P910 88.5 115.6 120.2 117.7 116.6 116.6 109.9 107.8 101.5 94.4

WY P911 89.9 112.5 114.9 111.3 109.5 107.5 101.9 99.5 93.3 87.6

WY P913 88.5 106.1 110.6 108.1 107 107 100.4 98.2 91.9 84.8

WY P914 85.2 108.1 115 109.2 106.6 102.4 96.9 92.5 83.9 75.7

WY P980 Rec10 87.6 98.8 104.5 105.1 105.5 104.4 98 93 86 79.7

WY P980 Rec10 Drive A

105 91.5 96.3 98.1 98.6 100.1 102.7 96.4 88.1 84.3

WY P980 Rec10 Drive B

105 91.5 96.3 98.1 98.6 100.1 102.7 96.4 88.1 84.3

WY P980 Reclaimer 10 Bucket Drive

111 99.4 101.4 106.2 106.8 104.7 109.1 101.7 95.9 86


106.1 101 98 100.5 101.2 101.4 102.8 98.1 95.1 87.3

WY P981 81.3 113.1 119 115.3 110.9 109.4 105.1 100.4 94.4 89.6

WY P981 Drive 105 95.3 100.2 101.1 102 102.6 99.2 99.4 82.4 74.4

WY P982 81.3 107 112.9 109.2 104.8 103.4 99.1 94.3 88.3 83.5

WY P982 Drive 105 94.1 95.6 96.7 96.5 97.4 104 93.2 86.6 80.3

WY P983 81.3 104.9 110.9 107.2 102.7 101.3 97 92.3 86.3 81.5

WY P983 Drive 105 94.1 95.6 96.7 96.5 97.4 104 93.2 86.6 80.3

WY P984 81.3 101.1 107 103.3 98.8 97.4 93.1 88.4 82.4 77.6

WY P984 Drive 104.4 90.9 95.7 97.5 98 99.5 102.1 95.8 87.5 83.7

WY TS702 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS704 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

WY TS800 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

WY TS801 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS807 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS808 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS809 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

WY TS810 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

WY TS811 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

WY TS865 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

WY TS885 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS890 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS892 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8



Source O/A in dBA


31 63 125 250 500 1k 2k 4k 8k

WY TS895 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS896 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS897 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS901 111.7 103.2 108.1 107.1 105 110.9 107.8 101.4 94.7 87.8

WY TS910 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS911 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS913 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS914 88.7 80.2 85.1 84.1 81.9 87.9 84.8 78.4 71.7 64.8

WY TS981 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS982 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS983 108.7 100.2 105.1 104.1 101.9 107.9 104.8 98.4 91.7 84.8

WY TS984 88.7 80.2 85.1 84.1 81.9 87.9 84.8 78.4 71.7 64.8

Source Lw' 31 63 125 250 500 1 2 4 8

CD 1 111.2 122.9 123.1 118.2 113.9 107.5 104.3 100.8 97.6 88

CD 2 111.2 122.9 123.1 118.2 113.9 107.5 104.3 100.8 97.6 88


Doc: 075063--140-100-Rev3-6 September 2016 Page C-1

Appendix C. Schematic showing upgraded routes

Figure C- 1 Upgraded routes at Nelson Point

Figure C- 2 Upgraded routes at Finucane Island