Assessment Process - Chevron Corporation · comment from Monday July 26, 2010 until Monday October 4, 2010. Copies of the Draft EIS/ERMP may also be downloaded from . Chevron Australia

The Environmental Protection Authority (EPA)

invites people to make a submission on this proposal.

The environmental impact assessment process is designed

to be transparent and accountable, and includes specific

points for public involvement, including opportunities

for public review of environmental review documents.

In releasing this document for public comment, the EPA

advises that no decisions have been made to allow this

proposal to be implemented.

The Proposal

Chevron Australia Pty Ltd (Chevron), as operator of the

Wheatstone Project (Project), proposes to construct and

operate a Liquefied Natural Gas (LNG) plant and a domestic

gas (domgas) plant near Onslow on the Pilbara coast in

Western Australia (WA). The development is to be part

of the Ashburton North Strategic Industrial Area (SIA)

proposed by the Western Australian Government.

The Project will require the installation of gas gathering,

export and processing facilities in Commonwealth and

State waters and on land. The Project will require the

dredging of a shipping access channel and the construction

of a new industrial port facility. The associated LNG

processing plant will be located on the Ashburton North

Strategic Industrial Area approximately 12km south-west

of the town of Onslow, Western Australia. The LNG plant

will have a maximum capacity of 25 Million Tonnes Per

Annum (MTPA).

The Project also includes a domgas plant which will have a

capacity equal to approximately 15 per cent of LNG sales.

Domestic gas will be delivered to the Western Australian

market via the Dampier-to-Bunbury natural gas pipeline.

Assessment Process

Following referral of the Project in September 2008,

the Commonwealth Department of the Environment,

Water, Heritage and the Arts (DEWHA) and the Western

Australian Environmental Protection Authority (EPA)

determined that the proposed Project should be formally

assessed at the Environmental Impact Statement (EIS)

level under the Environment Protection and Biodiversity

Conservation Act 1999 (the EPBC Act) (EPBC 2008/4469)

and the Environmental Review and Management

Programme (ERMP) level under the Environment

Protection Act 1986, respectively.

The Commonwealth and Western Australian governments

have agreed to a coordinated environmental assessment

process. A single EIS/ERMP document that satisfies

the requirements of each jurisdiction is required under

this process. Comments from government agencies

and from the public will assist the EPA to prepare an

assessment report in which it will make recommendations

to government.

Chevron Australia has prepared the Draft

EIS/ERMP in accordance with EPA and DEWHA guidelines

and as set out in the Environmental Scoping Document

(Chevron Australia 2009). The EIS/ERMP describes the

proposal, and examines the likely environmental effects

and proposed environmental management procedures

associated with the Project.

The Draft EIS/ERMP is being placed on public exhibition

for ten weeks. DEWHA and the EPA will assess the Draft

EIS/ERMP following receipt of public submissions,

and Chevron’s response to those submissions, before

reporting to relevant ministers for a final decision on

whether the Project should be approved and if so, under

what conditions. Comments from government agencies

and from the public will assist the EPA to prepare an

assessment report in which it will make recommendations

to government. DEWHA will also be informed by comments

on the Draft EIS/ERMP and will prepare a separate

assessment report for the Minister for Environment

Protection, Heritage and the Arts.

Invitation to Comment

i

Availability of the Draft EIS/ERMP for Public Comment

This Draft EIS/ERMP will be available for public

comment from Monday July 26, 2010 until Monday

October 4, 2010.

Copies of the Draft EIS/ERMP may also be downloaded

from www.chevronaustralia.com.au. Chevron Australia

encourages the use of electronic copies of this

EIS/ERMP document.

Hard copies of the Draft EIS/ERMP may be purchased for

$10 (including postage and packaging) or a DVD version

is available free of charge by contacting:

• Chevron Australia Pty Ltd

Attention: Wheatstone EIA Coordinator

GPO Box S1580

Perth, WA 6845.

Free Call: 1800 611 246

Email: [email protected]

Copies of the Draft EIS/ERMP will be available

for examination at:

• Department of Environment and Conservation

Library/Reading Room

4th Floor, The Atrium

168 St Georges Tce

Perth, WA 6000

• JS Battye Library of West Australian History

Perth Cultural Centre

25 Francis St

Northbridge, WA 6000

• Department of Environment

and Conservation Regional Office

Lot 3, Anderson Road,

Karratha Industrial Estate, Karratha

PO Box 835, Karratha, WA 6714

• Department of Environment

and Conservation District Office

Exmouth District

20 Nimitz Street, Exmouth

PO Box 201, Exmouth, WA 6707

• Shire of Ashburton Public Libraries:

• Onslow (Shire Office, Second Ave)

• Tom Price (Community Centre)

• Paraburdoo (Paraburdoo Shopping Complex)

• Pannawonica (Pannawonica Drive)

• Department of the Environment,

Water, Heritage and the Arts Library

John Gorton Building

King Edward Tce

Parkes, ACT 2600.

Public Submissions

Why write a submission?

A submission is a way to provide information, express your

opinion and put forward your suggested course of action

- including any alternative approach. It is useful if you

indicate any suggestions you have to improve the proposal.

All submissions received by the EPA will be acknowledged.

Electronic submissions will be acknowledged electronically.

The proponent will be required to provide adequate

responses to points raised in submissions. In preparing its

assessment report for the Minister for the Environment,

the EPA will consider the information in submissions, the

proponent’s responses and other relevant information.

DEWHA will also be informed by public submissions and

the proponent’s responses in preparing it’s separate

assessment report for the Minister for Environment

Protection, Heritage and the Arts.

Submissions will be treated as public documents unless

provided and received in confidence, subject to the

requirements of the Freedom of Information Act 1992,

and may be quoted in full or in part in each report.

Invitation to Comment (cont’d)

ii

Why not join a group?

If you prefer not to write your own comments, it may be

worthwhile joining with a group or other groups interested

in making a submission on similar issues. Joint submissions

may help to reduce the workload for an individual or group,

as well as increase the pool of ideas and information. If you

form a small group (up to 10 people) please indicate all the

names of the participants. If your group is larger, please

indicate how many people your submission represents.

Developing a submission

You may agree or disagree with, or comment on, the

general issues discussed in the Draft EIS/ERMP or the

specific proposals. It helps if you give reasons for your

conclusions, supported by relevant data. You may make

an important contribution by suggesting ways to make the

proposal environmentally more acceptable.

When making comments on specific proposals in the Draft EIS/ERMP:

• Clearly state your point of view

• Indicate the source of your information or argument

if this is applicable

• Suggest recommendations, safeguards or alternatives.

Points to keep in mind

By keeping the following points in mind, you will make it

easier for your submission to be analysed:

• Attempt to list points so that issues raised are clear.

A summary of your submission is helpful

• Refer each point to the appropriate section, chapter

or recommendation in the Draft EIS/ERMP

• If you discuss different sections of the Draft EIS/

ERMP, keep them distinct and separate, so there is no

confusion as to which section you are considering

• Attach any factual information you may wish to

provide and give details of the source. Make sure

your information is accurate.

Remember to include:

• Your name

• Address

• Date

• Whether you want your submission to be confidential.

Public submissions close on October 4, 2010.

Public submissions for both the WA State process and the

Commonwealth process will be coordinated by the WA EPA.

The EPA prefers submissions to be made electronically

using one of the following:

• The submission form on the EPA’s website:

www.epa.wa.gov.au/submissions.asp

• By email to [email protected].

Alternatively, submissions can be:

• Posted to: Chairman, Environmental Protection

Authority, Locked Bag 33, Cloisters Square,

WA 6850, Attention: Peter Walkington

• Delivered to the Environmental Protection Authority,

Level 4, The Atrium, 168 St Georges Terrace,

Perth, WA 6000, Attention: Peter Walkington

or

• Faxed to (08) 6467 5562.

If you have any questions on how to make a submission,

please ring the EPA assessment officer, Peter Walkington

on (08) 6467 5412.

iii

Invitation to Comment (cont’d)

Wheatstone Project Executive Summary

iv | Chevron Australia Pty Ltd

Foreword

On behalf of Chevron Australia, I am pleased to present

this Draft Environmental Impact Statement/Environmental

Review and Management Programme for the proposed

Wheatstone Project. As the Commonwealth and Western

Australian governments have agreed to a coordinated

environmental assessment process, this document

is designed to meet the assessment requirements

of both jurisdictions.

The Wheatstone Project is intended to bring significant

benefits to Australia by underpinning a LNG and domestic

gas hub at Ashburton North with significant growth

potential for Chevron and third party natural gas.

The creation of the hub will lower the economic limit

to enable future developments, and increase the number

of supply points for domestic gas. The Wheatstone Project

will also provide an estimated 6,500 direct and indirect

jobs during construction plus significant Australian

industry participation.

Chevron Australia, proponent of the Wheatstone Project,

has been involved in managing existing oilfield operations

in the Pilbara Region of Western Australia for more than

45 years. The management of these operations on a

Class A nature reserve is widely recognised as a

demonstration of the successful co-existence of petroleum

operations and the protection and maintenance of

conservation values.

The environmental management strategies developed to

avoid or mitigate the potential impacts of the Wheatstone

Project will protect conservation and biodiversity values

and enhance Chevron Australia’s successful environmental

stewardship in the Pilbara.

The potential beneficiaries of the Wheatstone Project

range from communities in the Pilbara and the state of

Western Australia to the whole of the Australian nation

and our international customers.

Our success in managing petroleum operations, as well

as our diligence in preparing this plan, demonstrates

Chevron’s commitment to meeting our environmental

responsibilities, whilst also meeting national and

international clean energy demands.


Chevron Australia Pty Ltd | 1

Executive Summary

ContentsForeword iv

Wheatstone Project Abbreviations and Acronyms 4

1.1 Introduction 6

1.2 Project Proponent 7

1.3 Environmental and Social Commitment and Responsibility 7

1.4 Project Description 7

1.5 Development Timeline 9

1.6 Project Objectives 10

1.7 Site Selection and Development Alternatives 10

1.8 Legal Framework for the Proposal 11

1.9 Stakeholder Consultation 11

1.10 Existing Environment 11

1.10.1 Local Marine Environment 11

1.10.2 Local Terrestrial Environment 12

1.10.3 Socio-economic and Cultural Environment 13

1.11 Emissions from the Project 13

1.11.1 Greenhouse Gas and Energy Efficiency 13

1.11.2 Atmospheric Emissions 15

1.11.3 Light 15

1.11.3.1 Offshore Facilities Light Emissions 15

1.11.3.2 Onshore Facilities Light Emissions 15

1.11.4 Noise 16

1.11.4.1 Potential Onshore Noise Emissions during Construction 16

1.11.4.2 Potential Onshore Noise Emissions during Operations 17

1.11.5 Marine Discharges 17

1.11.5.1 Offshore Facilities Discharges 17

1.11.5.2 Onshore Discharges 18

1.11.6 Waste Production and Management 18

1.11.6.1 Construction Wastes 18

1.11.6.3 Waste Management 19

1.11.6.4 Local Facilities 19

1.12 Environmental Risk Assessment and Management 19

1.12.1 Overview 19

1.12.2 Marine Risk Assessment and Management 20

1.12.2.1 Water and Sediment Quality 20

1.12.2.2 Benthic Primary Producer Habitat 20

1.12.2.3 Marine Fauna 20

1.12.2.4 Coastal Processes 21


2 | Chevron Australia Pty Ltd

Executive Summary

Contents (cont’d)1.12.3 Terrestrial Risk Assessment and Management 21

1.12.3.1 Soils and Landforms 21

1.12.3.2 Groundwater 21

1.12.3.3 Surface Water 21

1.12.3.4 Flora and Vegetation 21

1.12.3.5 Terrestrial Fauna 21

1.12.3.6 Subterranean Fauna 21

1.12.3.7 Air Quality 22

1.12.4 Social Risk Assessment and Management 22

1.12.4.1 European Cultural Heritage 22

1.12.4.2 Aboriginal Cultural Heritage 22

1.12.4.3 Local Fishing and Pearling 22

1.12.4.4 Disturbance to Other Recreational Use 22

1.12.4.5 Public Amenity 23

1.12.4.6 Health and Wellbeing 23

1.13 Hydrocarbon Leaks and Spills 24

1.14 Cumulative Impacts 24

1.15 Wheatstone Environmental Management Program 24

1.15.1 Overview 24

1.15.2 Proposed Outcome-based Conditions 26

1.15.3 Proposed Statutory EMPs 26

1.15.4 Subsidiary Plans 26

1.16 Conclusion 27



TablesTable 1.1: Scale of Change to Visual Amenity 23

Table 1.2: Projects (Actions) Considered for Cumulative Assessment 25

Table 1.3: Proposed Outcome-based Conditions 26

Table 1.4: Statutory EMPs 27

Table 1.5: Marine Risk Assessment Summary 28

Table 1.6: Terrestrial Risk Assessment Summary 72

Table 1.7: Social Risk Assessment Summary 96

FiguresFigure 1.1: Location of the Wheatstone Project 6

Figure 1.2: Proposed Location of the Wheatstone Project Gas Processing Facilities and Associated Infrastructure 8

Figure 1.3: Indicative Schedule for Development of the Wheatstone Project (Trains 1 and 2) 10

Figure 1.4: Benchmarked Greenhouse Gas Emissions Intensity 14

Figure 1.5: Light Intensity 16

Figure 1.6: Predicted Noise Contours for Pile Driving During Construction 17

Figure 1.7: Predicted Noise Contours During Routine Operations 18

Figure 1.8: Wheatstone Environmental Management Program 25

Executive Summary

Executive Summary



Abbreviation Meaning

ANZECC Australian and New Zealand Environment and Conservation Council

AQIS Australian Quarantine and Inspection Service

ARMCANZ Australia New Zealand Standard Industry Classifications

ABU Chevron Australasian Business Unit (previously ASBU)

BPPH Benthic Primary Producer Habitat

BTEX Benzene, toluene, ethyl-benzene and xylene

CEMP Construction Environmental Management Plan

Condensate Natural gas condensate

CPMP Coastal Processes Management Plan

CRCP Cane River Conservation Park

CSD Cutter Suction Dredge

Cth Commonwealth

CW Cooling water

DBNGP Dampier to Bunbury Natural Gas Pipeline

DEC Western Australian Department of Environment and Conservation

DEMP Decommissioning Environmental Management Plan

DEWHA Commonwealth Department of the Environment, Water, Heritage and the Arts

DMP Department of Mines and Petroleum

DO Dissolved oxygen

DoF Department of Fisheries

DoH Department of Health

DRF Declared Rare Flora

DSDMP Dredging and Spoil Disposal Management Plan

EIS Environmental Impact Statement

EMP Environmental Management Plan

EP Act (WA) Western Australian Environmental Protection Act 1986

EPA Western Australian Environmental Protection Authority

EPBC Act (Cth) Commonwealth Environment Protection and Biodiversity Conservation Act 1999

ERMP Environmental Review and Management Programme

FEED Front End Engineering Design

FID Final Investment Decision

GHG Greenhouse Gas

GS Guidance Statement

ha Hectare(s)

IMP Introduced marine pest

Wheatstone Project Abbreviations and Acronyms




ANZECC Australian and New Zealand Environment and Conservation Council

AQIS Australian Quarantine and Inspection Service

ARMCANZ Australia New Zealand Standard Industry Classifications

ABU Chevron Australasian Business Unit (previously ASBU)

BPPH Benthic Primary Producer Habitat

BTEX Benzene, toluene, ethyl-benzene and xylene

CEMP Construction Environmental Management Plan

Condensate Natural gas condensate

CPMP Coastal Processes Management Plan

CRCP Cane River Conservation Park

CSD Cutter Suction Dredge

Cth Commonwealth

CW Cooling water

DBNGP Dampier to Bunbury Natural Gas Pipeline

DEC Western Australian Department of Environment and Conservation

DEMP Decommissioning Environmental Management Plan

DEWHA Commonwealth Department of the Environment, Water, Heritage and the Arts

DMP Department of Mines and Petroleum

DO Dissolved oxygen

DoF Department of Fisheries

DoH Department of Health

DRF Declared Rare Flora

DSDMP Dredging and Spoil Disposal Management Plan

EIS Environmental Impact Statement

EMP Environmental Management Plan

EP Act (WA) Western Australian Environmental Protection Act 1986

EPA Western Australian Environmental Protection Authority

EPBC Act (Cth) Commonwealth Environment Protection and Biodiversity Conservation Act 1999

ERMP Environmental Review and Management Programme

FEED Front End Engineering Design

FID Final Investment Decision

GHG Greenhouse Gas

GS Guidance Statement

ha Hectare(s)

IMP Introduced marine pest


LEP Levels of ecological protection

LNG Liquefied Natural Gas

MARPOL“Marine Pollution”. Refers to the International Convention for the Prevention of Pollution From Ships, 1973 as modified by the Protocol of 1978.

MEG Mono ethylene glycol

MFMP Marine Fauna Management Plan

MMscfd Million standard cubic feet per day

MOF Materials Offloading Facility

MOPP Marine Oil Pollution Plan

MTPA Million tonnes per annum

NEPM National Environment Protection Measure

NES National Environmental Significance

NO2

Nitrogen dioxide

NORM Naturally occurring radioactive material

NOPSA National Offshore Petroleum Safety Authority

NWS North West Shelf

O3

Ozone

OBC Outcome-based Condition

OE Operational Excellence

OEMP Operations Environmental Management Plan

OEMS Operational Excellence Management System

OPGGS Act (Cth) Commonwealth Offshore Petroleum and Greenhouse Gas Storage Act 2006

PASS Potential acid sulfate soils

PLF Product Loading Facility

PM10

Particulate matter of 10 microns or less

PNEC Predicted No Effect Concentration

PW Produced water (including formation water)

SIA Strategic Industrial Area

SO2

Sulfur dioxide

TPH Total petroleum hydrocarbons

TSHD Trailing Suction Hopper Dredge

TSS Total suspended solids

VSP Vertical seismic profiling

WHO World Health Organisation

Executive Summary

Executive Summary



1.1 IntroductionChevron Australia Pty Ltd (Chevron), as operator of the Wheatstone Project (Project), proposes to construct and operate a 25 million tonne per annum (MTPA) Liquefied Natural Gas (LNG) plant and a domestic gas (domgas) plant near Onslow on the Pilbara coast in Western Australia (WA) (Figure 1.1). The development is to be part of the Ashburton North Strategic Industrial Area (SIA) proposed by the Western Australian Government.

The Project comprises a range of offshore and onshore infrastructure components to recover gas from Petroleum Titles WA-253-P, WA-17-R, WA-356-P, and WA-16-R (Figure 1.1). An offshore process platform will provide initial treatment of the gas and natural gas condensate (condensate), which will then be transported via a subsea pipeline to an onshore LNG processing facility. The resultant LNG and condensate will be shipped to worldwide markets. Gas from the plant will be made available to the Western Australian domestic market via an onshore pipeline installation.

The development of the Project as a 25 MTPA multi-train LNG facility reduces the potential requirement for future expansion of Chevron’s gas-processing facilities in the Ashburton North SIA, and lessens the need for future LNG-related developments in the Pilbara; the establishment of a processing hub will facilitate development of additional offshore gas resources. These may be in the Carnarvon Basin and other areas, from both Chevron operated Petroleum Titles and those operated by other parties.

This Executive Summary has been prepared by Chevron and provides a summary overview of the information presented in the Wheatstone Draft Environmental Impact Statement /Environmental Review and Management Programme (EIS/ERMP). This includes:

• The Project development

• Site selection and development alternatives

• The existing environment

• Potential impacts and mitigation measures.

Figure 1.1: Location of the Wheatstone Project



The Draft EIS/ERMP has been prepared for the Project in accordance with the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) and the Western Australian Environmental Protection Act 1986 (EP Act). For the purposes of this document, the word “Project” is interchangeable with the word “Proposal”, as used by the Western Australian Environmental Protection Authority (EPA), and also the term “Controlled Action” as defined under the EPBC Act (Cth).

Chevron has implemented a trial of the application of a risk-based approach for environmental impact assessment at the request of the EPA. The risk-based approach enables the potential impacts or hazards associated with Project activities to be evaluated on the basis of potential risk to the environment. Environmental investigations, assessment and mitigation can then be focused on the factors or receptors considered to be at High and Medium-level risk of adverse impact. Low and Very Low risks are also assessed but in less detail. Risk-assessment summary tables can be found at the end of this Executive Summary. These detail the risk rankings assigned to each aspect and factor for the construction and operations phases of the Project. They include a summary of potential impacts, mitigation and management measures and relevant assumptions.

1.2 Project ProponentChevron Corporation is an integrated energy company whose businesses are involved in every aspect of the global crude oil and natural gas industry. In 2009, the Chevron Corporation companies produced 2.7 million net oil-equivalent barrels per day from operations around the world. As of March 2009, net production of natural gas was more than 141 Mm3 (5 billion cubic feet) per day. Chevron Corporation’s businesses employ approximately 62 000 staff, support a network of more than 22 000 retail outlets on six continents and have invested in power generating facilities in the United States, Australia and across Asia.

Chevron Corporation, through its Australian subsidiary, Chevron, has been present in Australia for more than 50 years. With more than 1800 staff, Chevron manages its equal one-sixth interest in the North West Shelf Venture, operates the Barrow Island and Thevenard Island oilfields, and leads the development of the Gorgon and Wheatstone natural gas projects. Chevron is also a partner in the Browse liquefied natural gas development and a significant investor in exploration offshore north-west Australia. In addition, Chevron’s Perth-based Global Technology Centre provides technology support and solutions to the company’s operations in Australia and around the world.

1.3 Environmental and Social Commitment and Responsibility

It is the policy of Chevron Corporation to protect the safety and health of people and the environment, and to conduct operations reliably and efficiently. The systematic management of safety, health, environment, reliability and efficiency to achieve world-class performance is defined as Operational Excellence (OE). Chevron Corporation’s commitment to OE is embodied in The Chevron Way value “Protecting People and the Environment”, which places the highest priority on health and safety, and the protection of assets and the environment.

In 2008, Chevron Corporation received attestation from Lloyd’s Register Quality Assurance that the OE management system (OEMS) meets all requirements of the International Standards Organization’s 14001 environmental management system standard and the Occupational Health and Safety Assessment Series management specification 18001, and that OEMS is implemented throughout the corporation. These standards are international benchmarks and demonstrate Chevron’s commitment to world-class performance.

Chevron has developed a range of environmental management measures and controls collectively termed the Environmental Management Program (Program). The Program is designed to facilitate the implementation of Chevron’s Strategic Australasia Business Unit (ABU) OEMS and ABU Policy 530 – Operational Excellence, and to meet legal requirements.

1.4 Project Description In August 2004, a significant gas discovery was made at the Wheatstone-1 well in Chevron’s solely held WA-253-P Petroleum Title, located offshore approximately 225 km north of Onslow in WA (Figure 1.1). This complemented the discovery in 2000 of natural gas in Petroleum Title WA-17-R, located approximately 10 km from WA-253-P. The Project will produce gas from Petroleum Titles WA-253-P and WA-17-R (held 100 per cent by Chevron companies), WA-356-P (held by third parties), and WA-16-R (held by Chevron companies and Shell Development Australia). Chevron proposes to construct and operate a 25 MTPA LNG plant and 625 million standard cubic feet per day (MMscfd) domestic gas (domgas) plant. The development is to be part of the Ashburton North SIA proposed by the Western Australian Government (Figure 1.2). The Project stands to generate significant employment opportunities: Approximately 3000 workers (maximum 5000) at the peak of construction activity in 2014 and



Figure 1.2: Proposed Location of the Wheatstone Project Gas Processing Facilities and Associated Infrastructure



approximately 300 workers (maximum 400) during operations. The Wheatstone Project will provide an estimated 6500 direct and indirect jobs during construction plus significant Australian industry participation.

Approval is being sought for the design, construction, commissioning, operation and decommissioning phases of the Project. The Project’s key characteristics include:

• Offshore production facilities with a nominal capacity of 9 MTPA LNG, including wells, subsea installations and offshore platforms

• An export pipeline (trunkline) to provide feed gas from the offshore production infrastructure to the onshore gas processing facility

• A gas processing and export facility, including 25 MTPA LNG processing facility and domestic gas processing plant, LNG and condensate product storage, power generation, water supply, waste disposal, and associated support facilities

• Marine facilities including a shipping channel, turning basin, Materials Offloading Facility (MOF) and Product Loading Facility (PLF)

• A multi-purpose infrastructure corridor, which will incorporate an access road to the site as well as the domestic gas pipeline connecting to the existing Dampier-to-Bunbury Natural Gas Pipeline (DBNGP)

• An accommodation village, access roads and supporting infrastructure.

The plant pad elevation will be raised and onshore fill material may need to be sourced from a third party quarry if it cannot be sourced locally from borrow areas. Any third-party quarries used to source the fill material will have the appropriate government licenses and approvals.

The Project is expected to have an operating life of at least 40 to 50 years. At the end of its useful life decommissioning will be required. In the lead up to this point, reuse and recycling opportunities for the Project components will be considered. For example, removal of equipment for use by a third party, or use of equipment left in situ for alternative uses. Where no feasible or practicable alternatives can be identified, the Project components will be decommissioned.

Infrastructure above the seabed will be designed for full removal, however a full assessment prior to decommissioning will be undertaken to assess if full removal is the most environmentally feasible option.

Although it is technically viable to remove subsea trunklines, they are likely to be flushed and left in place to limit impacts to the marine environment associated with the removal operation.

Typically the decommissioning activities will include:

• Decommissioning production facilities

• Flushing subsea facilities including pipelines, flowlines, manifolds and risers

• Decommissioning, suspension, plugging and abandoning wells

• Removal and/or leaving in situ of facilities as agreed with the regulator.

The decommissioning requirements for the Project will be agreed with the regulatory authorities closer to the time of decommissioning. A Decommissioning Management Plan will be developed and will consider:

• Condition of the marine and terrestrial environment

• International, National and State regulatory legislation and standards at the time of decommissioning

• Health and safety legislation and standards

• The land zoning plans and future land use options.

1.5 Development TimelineMajor Project components include Front End Engineering Design (FEED) in 2010, Final Investment Decision (FID) and construction commencing in 2011, and production scheduled to commence in 2016. The timing for the commencement of construction at Ashburton North is subject to the achievement of State and Commonwealth Government approvals, and internal approval processes. An indicative schedule for the Project is provided in Figure 1.3.



1.6 Project ObjectivesThe Project is aimed at bringing gas to international and domestic markets. It will be developed as a multiple-train gas project that will process gas for Chevron as well as third-party gas owners in the Carnarvon Basin and potentially other areas.

The primary objectives of the Project are to:

• Commercialise the hydrocarbon resources within Petroleum Titles WA-253-P, WA-17-R, WA-356-P and WA-16-R, and efficiently and reliably recover these resources

• Create a processing hub to facilitate development of additional offshore gas resources in the Carnarvon Basin and other areas, from both Chevron operated Petroleum Titles and those operated by other parties

• Provide an acceptable return on investment

• Provide an alternative and reliable source of LNG to international markets along with an additional secure source of domestic gas for the local market

• Manage all environmental, health, security and safety issues with Chevron Corporation standards and recognised global industry standards in mind.

1.7 Site Selection and Development Alternatives

A detailed evaluation of development alternatives concluded that a tie-back to a new on-shore LNG facility located at a greenfield site somewhere between the Burrup Peninsia and North West Cape was preferred. The reasons for this decision were:

• A new facility provided the potential for a strategic development for discoveries in the West Carnarvon Basin

• A new development “hub” would facilitate synergies with other proponents

• A new facility was not constrained by other proponents either technologically or spatially

• A new facility could be developed with proven technology and linked back to the domestic gas market

• Environmental and cultural heritage impacts could be reduced relative to third-party locations.

Chevron investigated a number of alternative locations for the on-shore LNG plant and associated facilities. In addition to its community engagement, Chevron made the final decision on site selection in close consultation with the Australian Commonwealth and Western Australian State

Wheatstone Project ScheduleActivity 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

Major Milestones

Environmental Approval Process

Referral

Scoping Document

Draft EIS/ERMP Public Display

Environmental Approval Decision

Front End Engineering & Design

Construction and Commissioning

Dredging Program

Upstream Facilities

Downstream Facilities

Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

Activity 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

Select Develop Execute Operate

Select Site Commence FEED FID 1st LNG Train 1 1st LNG Train 2

Figure 1.3: Indicative Schedule for Development of the Wheatstone Project (Trains 1 and 2)

* Dates are subject to change as the Project develops. ** Project detailed design to continue after FID



Governments. This process, which included consideration of matters of National Environmental Significance (NES), identified Ashburton North SIA as the preferred site, with the following key attributes:

• The least relative environmental and social constraints

• Heritage and third-party constraints but with lower relative risks than other sites

• An inundation risk attributed to low ground levels that can be mitigated by engineering solutions

• Comparable in cost to other sites, but lowest in the uncertainty range.

Although the “No Action” alternative would eliminate any environmental impacts associated with the proposed action, the need for additional supplies of natural gas would remain. The Project is considered to have significant economic advantages based on the volume of reserves discovered. Not developing would therefore result in the loss of significant socio-economic benefits for the Pilbara region, the State of Western Australia, the Commonwealth of Australia and Chevron.

1.8 Legal Framework for the ProposalThe Project will be located in both State and Commonwealth waters. The primary environmental legislation relating to its approval is the EP Act (WA) and the EBPC Act (Cth). The Draft EIS/ERMP has subsequently been prepared in accordance with the requirements of both the EP (WA) and EPBC (Cth) Acts.

In addition to these requirements, Chevron has considered both Australian and international guidance and regulations along with Chevron’s own policies and standards in the development of the Draft EIS/ERMP. Compliance with relevant environmental and social performance standards and Draft EIS/ERMP commitments will be implemented through the Wheatstone Environmental Management Program.

Safety requirements are addressed separately in accordance with National Offshore Petroleum Safety Authority (NOPSA) requirements and the State equivalent, Resources Safety.

1.9 Stakeholder ConsultationChevron is undertaking a transparent stakeholder and community engagement process in the development of the EIS/ERMP. The engagement process is consistent with the Interim Industry Guidelines to Community Involvement and the International Association for Public Participation Guidelines for best practice in Social Impact Assessment.

The stakeholder consultation strategy is aligned with Chevron’s corporate values, which drive the company’s business to be conducted in a socially responsible and ethical manner. Consultation includes government agencies, non-government organisations, Indigenous organisations, Onslow residents, tourists visiting Onslow and the private sector.

The aim of the ongoing consultation for the Project and the associated impact assessment process is to:

• Provide a forum for stakeholders to participate, deliberate and contribute in a meaningful way to discussion; to raise concerns, and to provide suggestions and advice on the Project

• Provide opportunities for stakeholder input and feedback throughout the impact-assessment process in order to inform Project decision-making

• Broaden Chevron’s knowledge of the issues, concerns and opportunities that may arise in relation to the Project to enable the development of effective mitigation and enhancement strategies

• Allow Chevron to interact with stakeholders and find the best ways to increase benefits from the Project and reduce potential adverse impacts

• Capture and address stakeholder issues and concerns during development of the EIS/ERMP

• Consider stakeholder views in planning future consultation.

1.10 Existing Environment

1.10.1 Local Marine Environment

The marine waters in the Project area are characterised by variable levels of turbidity influenced by wind, tides and weather. These waters sometimes have naturally higher levels of turbidity due to cyclonic activity. Sediments in the east of the offshore field area are uniformly clayey, silty, medium sand with shell and coral fragments. In the north, west and south-west of the offshore field area, sediments are slightly finer in texture. The nearshore area is broadly characterised by silt and sand sheets overlying limestone. High levels of sediment are discharged from the Ashburton River.

No ecologically isolated, sensitive or unique benthic habitats have been found in the Project area. All benthic habitats in the Project area are widespread, and found throughout the nearshore and offshore Pilbara marine environment. Benthic Primary Producer Habitat (BPPH) include: reefs and shoals supporting hard corals and



macroalgae; patchy and low cover seagrass beds; and mangrove stands fringing creeks and lagoons. However, the dominant habitat, in terms of spatial extent, is unconsolidated sediment without vegetation cover.

EPBC Act (Cth) listed, threatened and migratory species of birds, marine mammals, reptiles and sharks/rays are known to be present in the nearshore and offshore Project area. These include Dugongs, sawfish and marine turtles. Humpback Whales are known to utilise the waters of the region between May and November. Marine turtles are present in the Project area and nest on offshore islands including Serrurier, Thevenard, Bessieres, Locker and Ashburton (Figure 1.1) during the summer. Low density nesting has been observed on the beach 4 km west of the onshore Project area but not in front of onshore infrastructure; beaches at the Ashburton North SIA site are unsuitable for nesting as they are inundated by spring tides.

The Project area is located in the Ashburton River Catchment where the surface water environment is characterised by local rainfall, runoff from upstream catchments and tidal variation. The Ashburton River, which has a shifting nature, makes a significant contribution to sediment deposition along the coast, particularly when it is in flood. Net alongshore sediment transport is generally considered to be from west to east and the entrance bar at Hooley Creek is dynamic.

1.10.2 Local Terrestrial Environment

The area surrounding the onshore component of the Project is dominated by topography consisting of undulating dunal systems, alluvial/colluvial plains and low-lying coastal systems. Areas of low relief are associated with the samphire and supra-tidal salt flats, claypans, tidal creeks and mangroves. There are three major identifiable soil groups/types encountered in the shallow soil profile for the Ashburton North and surrounds of the Shared Infrastructure Corridor study area. Although some metal concentrations exceed the relevant ecological threshold values, these metals are naturally occurring in the area and are not considered to pose an adverse risk to human health or ecological receptors. Potential acid sulfate soils (PASS) are present at shallow depths with a thickness ranging between 0.2 m and 3.5 m. They exist predominantly along the north-eastern extent of the Ashburton North SIA.

Ashburton North is predominantly a groundwater discharge zone associated with the regional Carnarvon Basin successions. The groundwater environment is characterised by shallow water table settings and mostly saline to hypersaline groundwater environments. The water table is closely linked with topography, with groundwater flow being a reflection of the surface water catchments.

Some comparatively high dissolved metals concentrations were evident, but these are considered to be representative of background conditions and are commensurate with the accumulation of salt in the local groundwater environment.

The Ashburton North SIA is located in the Ashburton River Delta, which is characterised as a coastal flood plain. The surface water characteristics are influenced by three main components: tidal inundation by seawater, localised rainfall events and flooding of the Ashburton River. When the Ashburton River is in flood, its flood waters will spill onto the floodplain and may significantly add to the stream flow in the drainage lines of the Project area. Surface water quality at Ashburton North is a mixture of tidal seawater and runoff from local catchments.

A total of 30 vegetation units were identified, which were generally defined as very good to excellent vegetation condition. However, several vegetation units were heavily infested with weeds. Most of the vegetation units are representative of vegetation in the locality, or are substantially degraded by the invasion of buffel grass (Cenchrus ciliaris), and are therefore considered to be of low conservation significance. Five of the 30 vegetation units are identified as having some degree of local significance, but no Threatened Ecological Communities listed under the EPBC Act (Cth) or the Western Australian Wildlife Conservation Act 1950 (WC Act) occur. Additionally, no Priority Ecological Communities listed by the Western Australian Department of Environment and Conservation (DEC) were identified.

Three Priority flora species (Eremophila forrestii subsp. viridis [Priority 3], Atriplex flabelliformis [Priority 3] and Triumfetta echinata [Priority 3] as listed by the DEC) were identified within the Project area. There was also one Threatened Flora species, Eleocharis papillosa (Dwarf Desert Spike-rush), listed as Vulnerable under the EPBC Act (Cth) and as a Priority 3 flora species, and an additional Priority flora species (Abutilon uncinatum ms. [Priority 1]) found outside the Project area.

A total of 128 vertebrate fauna species were recorded, comprising 47 reptile species, four frog species, 60 bird species and 17 mammal species. Six fauna species of conservation significance, or secondary signs of these species, and three introduced mammal species were recorded. Surveys also determined that the Project area and surrounds do not support important numbers of migratory waterbirds. No short-range endemic invertebrate fauna taxa were identified, while 59 taxa of zooplankton and 82 taxa of macro-invertebrates were recorded in a study of the ephemeral claypans.



Surveys for subterranean fauna recorded no troglobitic fauna, and two species of stygofauna. It was determined that it was unlikely that those stygofauna taxa are only restricted to the study area. Therefore, the study suggested that a diverse or significant stygal community does not occur in the aquifers beneath the study area and surrounds.

Existing dust at Ashburton North is primarily wind-blown. Minor anthropogenic sources of dust include tourist or local vehicles visiting the area along the Old Onslow Road near the Ashburton River and the Old Onslow heritage area. Dust emissions generally exhibit a marked seasonal trend, related to the influence of the Pilbara’s wet and dry seasons.

Minor sources of anthropogenic gaseous emissions do exist. However, these are considered inconsequential to the background air quality. Some of the minor emission sources include motor vehicles in the surrounding area of Onslow and some small-scale power generation facilities at Onslow and Onslow Salt.

1.10.3 Socio-economic and Cultural Environment

Onslow is located 1,386 kilometres north of Perth, in the Shire of Ashburton within the Pilbara region of Western Australia. It has a population of approximately 600, and a significant Indigenous population of around 37 per cent. The Thalanyji people are the native title holders for the onshore area around Onslow including the Ashburton North SIA. With development of the Project and other industrial operations in coming years, Onslow is expected to undergo significant change in population and socio-economic way of life.

Onslow is close to a number of natural resources and has a diverse economic base including fishing, salt, oil and gas, tourism and pastoral activities. Commercial fisheries include the Onslow Prawn Managed Fishery, Pilbara Managed Trap Fishery, North Coast Blue Swimmer Fishery, Pearl Oyster Managed Fishery, Pilbara Line Fishery, Mackerel Managed Fishery, Specimen Shell Managed Fishery and the Marine Aquarium Fish Managed Fishery.

Fishing is also one of the key recreational activities in Onslow and the town’s proximity to the ocean and the Ashburton River attracts visitors in pursuit of recreational coastal activities. Many visitors stay for three to four months during the winter and camp along the Ashburton River. Visitors also use heritage trails and tours highlighting the town’s rich history. For members of the Aboriginal community, hunting and gathering remains an important recreational and cultural activity. Although some hunting

and gathering takes place across the proposed Project area, it mostly occurs along the Ashburton River and to the east of the river.

Onslow was originally settled in 1883 and the Old Onslow Townsite is registered as place 3444 on the Western Australian Register of Heritage Places. The Heritage Council of Western Australia conservation area consists of a town site area, the line of a former tramway and jetty area. The site is also listed on the Shire of Ashburton’s municipal inventory and is highly valued by Onslow residents. Aboriginal heritage surveys of the proposed plant site and surrounding areas have identified sites containing shell scatters, shell middens, evidence of grinding activities and artefacts. No ethnographic sites were identified.

Despite Onslow’s range of economic and recreational activities, it is more socio-economically disadvantaged than the broader Shire of Ashburton and Pilbara region. Its remoteness also means social infrastructure and community services are limited. Neighbouring regional centres such as Exmouth and Karratha are approximately 350 km away and most community services are either provided by larger neighbouring towns, or flown in from elsewhere. For example, Onslow’s hospital is staffed by nurses, visited by a rotation of general practitioners three times a week, and supported by specialist services flown in periodically.

1.11 Emissions from the Project Emissions, discharges and wastes will be generated during the life of the Project. Identification of the potential sources and types of emissions and wastes has enabled an assessment of the volume and toxicity of each potential waste produced. This has also enabled the identification of areas where volumes could be reduced.

1.11.1 Greenhouse Gas and Energy Efficiency

Prior to commencing feasibility studies a high-level approach was taken in addressing issues of environmental importance. This included requirements to reduce greenhouse gas (GHG) emissions through design.

The following actions have been taken to manage the Project’s GHG emissions:

• Selection of aero derivatives for gas turbines

• Selection of waste heat recovery units offshore from compressor gas turbines



• Selection of LNG process train technology and size so as to enable the consideration of aero derivative gas turbines

• The use of inlet air humidification (cooling) on the LNG process gas turbines in order to optimise gas turbine energy efficiency

• Waste heat recovery from the LNG compressor gas turbine exhausts to meet routine process heat requirements in the onshore gas processing facility

• Waste heat recovery from the gas turbine exhausts of the main generators on the offshore platform to meet specific heating requirements

• The use of sophisticated process control systems for continuous optimisation and integration between various components of the gas processing system

• The capture and use of energy recovered from the pressure let down in the liquefaction section of the onshore gas processing facility.

Estimates of GHG emissions have been compiled in a manner that is consistent with methodologies prescribed by the Commonwealth National Greenhouse and Energy Reporting Act 2007. These emissions estimates indicate that the Project could emit greenhouse gases with the global warming potential equivalent of up to 9.9 MTPA of carbon dioxide (a standard comparison measure).

Figure 1.4 shows the GHG emissions intensity associated with LNG processing for LNG projects currently in production as dark grey bars. The medium grey bars show the estimated LNG processing emissions intensity for the two Australian LNG projects that are currently under construction. Estimated LNG processing emissions intensity for other Australian LNG projects that are currently undergoing environmental impact assessment are represented by light grey bars. The estimated LNG processing emissions intensity of the Project is shown in dark blue.

Figure 1.4: Benchmarked Greenhouse Gas Emissions Intensity

Refer to Section 4.2.6 for further details on benchmarked GHG emissions performance including associated assumptions.

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Where data on the emissions intensity of the associated gas production operations is available it is presented as an additional white bar. Projects where publicly available data on gas production emissions is not available are indicated with a blue circle.

A number of opportunities to further reduce the Project’s GHG emissions have been identified and will be evaluated further during ongoing Project design and engineering.

1.11.2 Atmospheric Emissions

The Project is located in a remote area in the north-west of WA with limited man-made sources of atmospheric emissions. Existing industrial sources of air pollutants in the Onslow region are restricted to the Onslow Salt facility and other minor light industries in the Onslow township. Man-made emissions are anticipated to be low, compared to natural emissions. Due to the remoteness of the site there is limited data on existing air quality in the area. Chevron initiated a monitoring program in 2009 to collect data on the existing air quality in the region. This monitoring program is ongoing and is expected to continue through the construction phase.

The EPA and the DEC routinely apply National Environment Protection Measure (NEPM) standards and goals in WA. The EPA does not have current State-wide standards for ambient ground-level pollutant concentrations. However, the EPA has released a Draft State Environmental (Ambient Air) Policy, where it proposes that the NEPM standards (Schedule 1A and 1B) be applied across all areas of WA, excluding areas where a current environmental protection policy exists.

Predicted routine emissions modelling has predicted ground-level concentrations of nitrogen dioxide (NO

2),

ozone (O3), sulfur dioxide (SO

2) and a particulate matter of

10 microns or less (PM10

). All modelled emissions were well below NEPM guideline values: less than 5 per cent of the values at Onslow. The emissions during construction were considered to be transitory (short-term and generally mobile). The key emission during this phase is dust, which is further discussed in the Terrestrial Risk Assessment and Management section of this Executive Summary.

1.11.3 Light

1.11.3.1 Offshore Facilities Light EmissionsThe main sources of light during installation and dredging will be various vessels, drilling mobile offshore drilling units and installation platforms. Typically, white light such as fluorescent, metal halide and halogen is used on a 24-hour basis. During commissioning and operations, the main sources will be vessels, platform facility lighting and the flare system. The design reduces light spillage and the platform location is more than 140 km from the nearest mainland. The site is not near any known critical aggregation areas for cetaceans, turtles or birds. The Wheatstone Platform will not be visible from the mainland.

1.11.3.2 Onshore Facilities Light EmissionsThe Project will produce light emissions during construction, commissioning, operations and decommissioning. This light will be generated by Project activities, such as flaring and by lighting systems that provide safe areas of operation.

Light spill along the beach and dunes south-west of Entrance Point has been modelled and predicts illuminance along the dune crest peaking at 0.2 lux (the standard unit to measure illuminance). Light spill across the beach will generally be less than 0.15 lux (Figure 1.5).

From the results of the viewshed analysis and the lighting study it can be inferred that, under normal operating conditions at night, the onshore facility will be seen from Onslow as a dull glow on the horizon. Flaring events may be more visible but will occur infrequently. The PLF and MOF will have low levels of illumination. Light emissions are not expected to significantly impact the nesting productivity of turtles, discussed further in the Marine Risk Assessment and Management section, discussed further in Section 1.12.2



1.11.4 Noise

The Pilbara region is characterised by mining and industrial centres separated by large distances. Regional towns are sparsely scattered throughout the Pilbara and tend to be hundreds of kilometres apart. There are also many pastoral stations scattered throughout the region. These properties are large and the homesteads are usually isolated from anthropogenic noise sources. Given the vast distances between receptors and noise sources in the Pilbara region, background noise is often very low. Continuous onshore noise monitoring was conducted over a two-week period at five sites considered by the Onslow community to be sensitive receptors. The Project will comply with the Environmental Protection (Noise) Regulations 1997 during operations. Potential environmental impacts relating to noise are discussed in the Risk Assessment and Management section.

1.11.4.1 Potential Onshore Noise Emissions during Construction

Onshore and nearshore foundation works will include the use of pile drivers, which may present significant potential noise source for Onslow. Up to ten pile drivers could be operating at the processing facility site for up to 18 months, while pile driving for construction of the export jetty and the MOF may involve two pile drivers for up to 14 months. Modelled noise emissions for the onshore processing facility predict that pile driving, under worst case conditions, may generate sound pressure levels in Onslow of 31 dB(A) (adjusted to 41 dB(A) if pile driving noise is impulsive. Modelled predicted noise contours for piling activities are shown in Figure 1.6.

Figure 1.5: Light Intensity



1.11.4.2 Potential Onshore Noise Emissions during Operations

During the operations phase, sound pressure levels are likely to be dominated by the gas turbines, compressors and flares. Predicted noise contours for routine operations are shown in Figure 1.7. Non- routine operations represent approximately six per cent of plant availability. During upset conditions up to six flares (worst case scenario) may operate to maintain the facility within safe operational guidelines.

1.11.5 Marine Discharges

1.11.5.1 Offshore Facilities DischargesThe offshore facilities will discharge produced water, cooling water, brine, deck drainage, treated process water and treated wastewater. Wastewater (sewage and putrescible organic matter) will be treated in accordance with the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78, Annex IV).

Produced water will be treated prior to being discharged to comply with the Offshore Petroleum and Greenhouse Gas Storage Act 2006. Potentially contaminated runoff and wastewater will be collected via a drainage system prior to treatment.

Figure 1.6: Predicted Noise Contours for Pile Driving During Construction



Discharges from the facility will undergo a range of degradation and dispersion processes. Direct dilution will occur in two phases: rapid near-field and slower far-field. The first phase is impacted by the discharge velocity / momentum and density differences between the discharge and surrounding water body. The second phase is far-field mixing which rely on natural processes of winds and waves inducing dilution. Distribution is determined by tidal flows, wind velocity and regional circulation patterns.

1.11.5.2 Onshore DischargesTreated sewage and domestic grey water generated during the operations phase will be discharged through one of the nearshore ocean outfall pipelines. Volumes for discharge may range up to 435 m3 per day. Treated domestic effluent may achieve a quality suitable to be recycled for dust suppression and vehicle wash water.

During operations, process waters will include reverse osmosis brines and filter backwash water, stormwater

contaminated with hydrocarbons, clean stormwater, hydrostatic test water, and produced water from offshore facilities. This water will be treated through different parts of the plant, depending upon the source and the level of contamination.

1.11.6 Waste Production and Management

1.11.6.1 Construction WastesDuring the construction phase a waste management area will be constructed to handle and segregate wastes prior to reuse, recycling or disposal. These wastes will be segregated by type and toxicity. The wastes will be stored in accordance with Australian standards and will be covered and bunded, where appropriate.

A review of waste disposal options is currently underway. Wastes that are not reused, recycled or managed on site will be disposed of at an appropriately licensed facility, discussed further in the Waste Management section, discussed further in Section 1.11.6.3.

Figure 1.7: Predicted Noise Contours During Routine Operations



1.11.6.2 Operation Wastes

Wastes generated during the operations phase will be mainly related to spent process chemicals and consumables. Relatively minor quantities of “domestic” wastes will be generated after the completion of construction activities due to the significant reduction in onsite personnel. A waste management area is proposed for the operational phase, which will operate as described in this section.

Recyclable materials generated during the operations phase consist mainly of ferrous and non-ferrous scrap metal. Decontaminated inert wastes, such as ceramic balls and molecular sieves, form a significant portion of wastes that are uneconomic to recycle.

Controlled wastes during the operations phase will include a range of process chemicals and materials. These wastes will be appropriately transported (by a licensed carrier) for disposal at a facility licensed to handle controlled wastes.

1.11.6.3 Waste Management Waste management in the Pilbara region is currently limited to:

• Shire operated Class II landfill disposal. Shire operated Class II landfills are generally unlined landfills that can accept inert wastes, putrescible wastes, compostable organics, bio-solids and certain special wastes, such as clinical waste. Class II landfills cannot accept controlled waste. Chevron is not intending to use these sites

• Transport of waste to Perth for recycling, treatment and/or disposal

• Disposal of waste to private, third-party, waste management service providers.

All solid wastes generated offshore during construction and operations will be transported to shore for onshore disposal. The only exception to this would be putrescibles organic matter and sewage. These will be treated in accordance with MARPOL requirements.

1.11.6.4 Local FacilitiesA landfill south of the main town of Onslow was described as “nearing the end of its operational life” in the 2003 Onslow Structure Plan. Since this time, the Shire of Ashburton has employed consultants to identify new sites for a potential landfill. These sites are currently undergoing further investigation. Chevron will review the preferred location and construction of the planned landfill to determine if it is appropriate for use for the Project.

1.12 Environmental Risk Assessment and Management

1.12.1 Overview

The Pilbara region is environmentally varied and sparsely populated. It is characterised by a tropical/arid climate. To assess the existing marine, terrestrial and social environments of the Project area, a variety of detailed scientific surveys and studies have been undertaken. The information collected has provided a baseline with which to inform the assessment of potential impacts to marine, terrestrial and socio-economic and cultural environments resulting from Project development. Following guidance from the EPA, a risk assessment was conducted on each relevant aspect for each of the environmental factors (where applicable).

The impact assessment methodology undertaken during the assessment process provides a robust process for:

• Identifying potential interactions and impacts

• Predicting the consequence of an impact

• Predicting the likelihood of the consequence occurring

• Determining the potential level of inherent risk

• Developing mitigation and/or management measures

• Determining the potential level of residual risk

• Monitoring and reporting the effectiveness of the proposed mitigation measures.

A number of factors, identified during Scoping, were considered for marine, terrestrial and socio-economic and cultural environments. The sections below identify the residual risk, as defined in the draft EPA guidance, for each factor and discuss the predicted environmental outcome.

Risk-assessment summary tables can be found at the end of this Executive Summary. These detail the risk rankings assigned to each aspect and factor for both the construction and operations phase of the Project. They include a summary of potential impacts, mitigation and management measures and relevant assumptions. For details on the risk ranking procedure, including consequence and likelihood definitions specific to each factor, refer to Chapter 7, Impact Assessment Methodology and the relevant impact assessment chapters.

It should be noted that proposed Outcome-based Conditions (OBCs) have been developed for those factors assessed as either having a high residual risk, or which otherwise have a high conservation value. A set of Statutory Environmental Management Plans



(EMPs) will be finalised to demonstrate to the EPA and Department of the Environment Water Heritage and the Arts (DEWHA) how Chevron and its contractors will maintain an acceptable standard of environmental performance in areas of medium or high risk throughout the Project. Also, prior to Project construction, a set of Subsidiary EMPs will be developed for relevant work scopes and activities, which detail the specific mitigation measures and management actions which will be implemented to limit Project related impacts.

1.12.2 Marine Risk Assessment and Management

1.12.2.1 Water and Sediment QualityThe Australian and New Zealand Environment and Conservation Council and Agriculture and Resource Management Council of Australia and New Zealand (ANZECC/ARMCANZ) guidelines criteria for turbidity may be exceeded in nearshore waters during dredging and construction. Turbidity related to construction of the MOF and PLF may result in the persist during and possibly for a few hours after an activity.

Areas around the PLF and the MOF will be subject to ongoing disturbance and may be unable retain the requirements necessary to sustain a high Level of Environmental Protection (LEP) as defined by the Pilbara Coastal Water Quality Consultation Outcomes. It is proposed that a Moderate LEP be assigned to the nearshore and the offshore dredge material placement site D which occurs in State Waters. It is also proposed that a Moderate LEP be assigned to the waters within 1 km of the Project’s nearshore infrastructure. It is further proposed that a Low LEP (200 radius mixing zone) be assigned to the discharge locations, one near the PLF, the other offshore in 20 m depth of water (note that the location of outfalls is indicative at present).

A minor increased load of nitrogen and phosphorus from the nearshore outfall is anticipated and unlikely to result in significant eutrophication effects to coastal waters. A substantially increased load of nitrogen and phosphorus from the offshore outfall is anticipated, although the relative increase offshore is minimal given the high natural background turnover in the open ocean. Water quality criteria including salinity, dissolved oxygen, temperature, nitrogen and phosphorus are predicted to remain close to background levels outside of the designated mixing zones and in accordance with related ANZECC Guidelines. The residual risk from the Project to water and sediment quality has been assessed as High.

1.12.2.2 Benthic Primary Producer HabitatNo reefs or shoals will be destroyed by the dredging program; the habitat ‘hard substratum’ will remain intact. Most coral reefs in the Project area are not predicted to suffer discernible levels of damage. However, up to 50 per cent of corals at Saladin Shoal, End-of-channel Shoal and a small reef northwest of Ward Reef, which are located closest to the dredge footprint, may suffer mortality. These impacts are unlikely to recover within five years. Nevertheless, recovery in the long term is highly likely because many adult coral colonies will survive and larvae will continue to arrive from unaffected source reefs up-current. Severe coral damage, defined as damaged coral assemblages unlikely to recover within five years, will be restricted to reefs and shoals closest to the dredge footprint.

Small reductions in the abundance and distribution of seagrasses is also anticipated, although rapid recovery is predicted once the dredging program ceases. A moderate proportion of the macroalgae dominated habitat in the Project area is predicted to be severely damaged as a results of the dredging campaign, but recovery is predicted in the long term. This habitat is widespread throughout the region. The construction of the Project plant and access road will result in the loss of intertidal algal mats and samphire habitat from the Hooley Creek ecosystem. The residual risk from the Project to BPPH has therefore been conservatively assessed as High.

1.12.2.3 Marine FaunaHumpback Whales, Dugongs, dolphins, sawfishes, marine turtles and other threatened and migratory species are known to occur, at least seasonally, in the Project area. However, it is highly unlikely that Project activities will have a measurable effect on local populations of these taxa. No critical habitat for threatened or migratory species occurs in the Project area and thus critical habitat will not be directly and permanently impacted by Project activities. Indirect impact to some seagrass beds, potential feeding grounds for Dugongs, is predicted, but disturbance will be temporary and recovery rapid after the cessation of dredging. Although some activities, such as dredging and piling, are likely to result in the disturbance of individuals of some species, these activities will not result in population levels impacts. Light spill modelling suggests that turtles will not be deterred from nesting on islands in the vicinity of the Project. Some nesting turtles may be displaced from the lower-dune area to the higher-dune area of the Ashburton River Delta beach, although nesting productivity is unlikely to be affected. The residual risk from the Project to marine fauna has therefore been assessed as Medium.



1.12.2.4 Coastal ProcessesAlthough coastal processes hold no specific conservation value on their own, impacts causing change in coastal processes have the potential to impact the conservation values of nearby mangrove and algal mat communities. The main risks to coastal processes will result from the installation or nearshore and onshore coastal infrastructure. The proposed MOF breakwaters will interrupt the wave-driven alongshore sediment transport pathways, enhancing local shoreline variability and requiring sand management. In the long term, accretion is expected on the western side of the MOF breakwaters, but the direction of transport reverses slightly during winter months. In addition, tropical cyclones may transport large volumes of sediment in either direction. The change in sediment transport is expected to slow the recovery of beaches between the MOF and Beadon Creek after an erosion event, most likely caused by a tropical cyclone. The residual risk from the Project to coastal processes has therefore been conservatively assessed as Medium.

1.12.3 Terrestrial Risk Assessment and Management

1.12.3.1 Soils and LandformsThe implementation of appropriate avoidance and management measures during construction and operational earthworks reduces the risks associated with exposure of PASS, such as acidity and mobilisation of heavy metals, and the occurrence of soil erosion. Potential spills and leaks are also considered to pose a low risk; they would be rapidly detected and minor, resulting in localised consequences only. The residual risk from the Project on soils and landforms is Low.

1.12.3.2 GroundwaterImpacts to groundwater may occur from seepage of decant (seawater) from the onshore dredge placement area if the preferred option for disposal of dredge material offshore is not undertaken. The predicted impacts to the water table environment are local effects that are not likely to substantially propagate beyond the processing facility footprint. The residual risk from the Project on groundwater is Medium.

1.12.3.3 Surface WaterThere is a potential for impacts to surface water to occur through increased sediment loads and seepage water volume to drainage lines and creeks during construction earthworks, onshore dredge material placement (should this option be undertaken) and thereafter from unstable landforms. To mitigate these risks, a number of engineering solutions have been proposed. The predicted impacts to the surface water environment linked to Project are local

effects that should not propagate beyond the sub-catchments of the Ashburton River Delta. With the inclusion of the risks associated with the potential onshore dredge placement option, the Project poses a Medium level of residual risk.

1.12.3.4 Flora and VegetationThe residual risk from the Project on flora and vegetation is Medium, which is strongly based on the clearing of approximately 3100 ha of vegetation (maximum clearance scenario). A proportion of this will be rehabilitated immediately after completion of construction of the domgas pipeline. Approximately 546 ha of vegetation with high local conservation significance will be cleared. Disturbance of three known Priority 3 species (E. forrestii subsp. viridis, A. flabelliformis and T. echinata) may be necessary. Flora and vegetation present in the Project area are generally widespread and well represented in the surrounding region.

1.12.3.5 Terrestrial FaunaSix threatened fauna species or signs of these species were recorded within the study area. However, these are all highly mobile (with the exception of the Western Pebble-mound Mouse) and it is expected that the majority of individuals will move away from the Project area at the commencement of the construction phase. No species listed under the EPBC Act (Cth) are likely to be affected by the Project and it is considered highly unlikely that the conservation status of any fauna species will be affected.

The Project will require the “maximum-clearance-scenario” clearing of up to 3100 ha of terrestrial fauna habitat, a proportion of which will be rehabilitated immediately after completion of construction of the domgas pipeline. Removal of suitable habitat is likely to be the main impact on the six threatened terrestrial fauna species recorded within the Project area. All of the terrestrial fauna habitats to be cleared in the Project area are well represented in the locality and wider region, and are not of elevated conservation significance. The Project is therefore considered to have an overall Low residual risk to terrestrial fauna.

1.12.3.6 Subterranean FaunaDue to the absence of troglofauna, and the low likelihood of any communities being present, the Project will not have any impact upon their populations. Disturbance to stygofauna is not expected to have an impact to species on a population level and it is unlikely that any stygal species would be restricted to the Project area. The residual risk from the Project to subterranean fauna is Very Low.



1.12.3.7 Air QualityThe location for the proposed processing facility is currently being considered as a potential ‘processing hub’ and, as such, there is the potential for additional gas processing facilities to be located at the Ashburton North SIA. Modelling was conducted to provide an indication of the reasonably foreseeable potential ground-level concentrations of pollutants with these additional gas processing facilities. Normal and non- routine emissions from the proposed Project operations are not expected to cause any significant air quality impacts within the study area. It is also not expected that any of the pollutants studied will exceed the relevant air-quality standards. Being mindful that further scientific work is required to determine uncertainties for modelling depositions, it is also determined that the deposition of NO

2 from the proposed gas processing facility would

be insignificant. No discernable impacts on identified receptors are expected.

After the implementation of controls and with consideration of mitigating factors, the impacts from dust are likely to affect the surrounding environment on a very localised scale, primarily during the site vegetation clearance activities during site preparation. The residual risk from the Project to air quality is Low.

1.12.4 Social Risk Assessment and Management

1.12.4.1 European Cultural HeritageThere will be some Project impacts on European cultural heritage as a result of construction activities. However, all impacts on European cultural heritage sites and artefacts will be managed in accordance with relevant legislative requirements and the Old Onslow Townsite (3444) Development Impact Mitigation Plan, the provisions of which will be prepared in consultation with the Heritage Council of WA, the Shire of Ashburton and the Western Australian Maritime Museum.

1.12.4.2 Aboriginal Cultural HeritageThere will be some impacts on Aboriginal cultural heritage values due to disturbance of certain identified Aboriginal heritage sites. Chevron will manage all impacts to these sites and any future impacts on Aboriginal cultural heritage values with the objective that any such impacts do not breach the Aboriginal Heritage Act 1972 (AH Act [WA]). This may include obtaining all necessary Section 18 Notices. These measures will be undertaken with the objective of meeting the environmental protection objective for Aboriginal heritage.

1.12.4.3 Local Fishing and PearlingThe Project will affect only a small proportion of the available commercial and recreational fishing areas in the region. Target fish species are well-represented in the region and permanent changes as a result of the Project should have negligible effect on fish abundance. Some impacts, such as those resulting from dredging or temporary exclusion zones, will only occur for a relatively short period of time. Other impacts, such as permanent exclusion zones around the LNG Plant, Multi User Facilities and Common User Infrastructure, will have an ongoing effect in the area. However, the effect should be localised.

There is potential for recreational fishing by the Project workforce to impact on commercial and recreational fishing in the area. There may also be permanent loss of access to Hooley Creek, a valued recreational fishing area. Even though it is a small area and there are numerous alternatives, it is culturally important to the Onslow community and tourists.

Overall, there is likely to be some disturbance to recreational use of the marine environment and there is likely to be some reduced access to valued recreational fishing areas. However, similar and superior recreational fishing locations exist in the area and pursuit of the sport remains viable. It is possible there will be some impacts on commercial fishing. However, Chevron will liaise with holders of commercial fishing licenses to manage any impacts identified. The residual risk from the Project on local fishing and pearling is Medium.

1.12.4.4 Disturbance to Other Recreational UseThere will be some disturbance to other recreational use through exclusion zones, changed access, and minor impacts on tourist accommodation. However, similar recreational locations exist in the area and all current recreational activities can continue. In addition, there may be some additional recreation opportunities created through social investment funding.

The Project itself will have a limited direct and permanent impact on tourist accommodation. It is possible that the Project will induce impacts on tourist accommodation and hence affect the ability of tourists to enjoy the area for recreation. However, if this occurs it will be an indirect impact beyond the scope of Chevron’s responsibility.

The residual risk from the Project on disturbance to other recreational use is Medium.



1.12.4.5 Public AmenityPublic amenity refers to how noise emissions, air emissions and visual impacts (including light emissions) impact on the amenity of a local area and affect the sense of well-being and quality of life of the community. For the purposes of this assessment, ‘public’ and ‘community’ includes Onslow residents, campers, tourists, other recreational users and nearby commercial land users. The overall residual risk from the Project on public amenity related to air emissions, noise emissions and visual impacts is Low.

Public Amenity: Noise

Noise from construction activities, including noise from activities such as earth moving and vehicle movements, is predicted to fall below guideline values. It is possible, but unlikely, that noise from pile driving could occasionally exceed noise levels at Onslow because its hammering sound is more intrusive than other noises. During operations, noise is only likely to be heard on a very localised and short-term scale and it is unlikely noise levels will be exceeded at Onslow. Noise will be managed as part of the Construction Environmental Management Plan (CEMP) and the Operations Environmental Management Plan (OEMP) and comply with government regulations. The residual risk from the Project on public amenity related to noise is Low.

Public Amenity: Air Emissions

Air emissions will generally consist of dust from vehicle movements and ground clearance, emissions from construction equipment, combustion of fuel gas in the gas turbines and flaring during upset or emergency conditions. The results of an air modelling assessment show that even under worst-case conditions air quality levels do not exceed guideline values. Air emissions will be managed as part of the CEMP and OEMP. The residual risk from the Project on public amenity related to air emissions is Low.

Public Amenity: Visual Impacts

The likelihood of changes to the visual character of the Project area is almost certain, due to the size of the facility. Table 1.1 lists the scale of the change at each viewpoint. A residual risk rating has not been assigned due to the subjective nature of values associated with visual amenity.

The offshore area that will be affected by the Project is very distant from any human settlements, and the gas-production facility would only be visible to passing ships. Under normal operating conditions at night, the onshore facility will be seen from Onslow as a dull glow on the horizon. Flaring events may be more visible but will occur infrequently, and the PLF and MOF will have low levels of illumination. A residual risk rating has not been assigned due to the subjective nature of values associated with visual amenity.

1.12.4.6 Health and WellbeingThere is no statutory requirement to assess environmental outcomes on health and well-being in the EIS/ERMP. However, the Project’s potential impacts on the health and well-being of the community will be assessed separately and will be evaluated by the Department of Health (DoH) and relevant experts facilitated through the DoH. In addition, Chevron will prepare safety cases for offshore, onshore and pipeline facilities and conduct qualitative and quantitative risk assessments of potential health and safety impacts to the public that could be posed by the Project. The Project will meet all legislative requirements and EPA guidelines relating to management of safety risks.

Table 1.1: Scale of Change to Visual Amenity

Viewpoint Scale of Change

Ten Mile Dam South accommodation village area Negligible

Ashburton River campsite Minor

Old Onslow Cemetery Moderate

Four Mile Creek beach Moderate

Four Mile Creek river mouth Minor

Nearshore recreational fishing area Moderate

Onslow town; Simpson Street Negligible



1.13 Hydrocarbon Leaks and SpillsA condensate and diesel leak and spill impact assessment was conducted for the Project. Hydrodynamic modelling determined the probability of released hydrocarbons reaching sensitive receptors such as mangroves and turtle nesting beaches for a variety of potential scenarios. The severity of the resulting impact is determined largely by the location of the leak or spill relative to the receptors, characteristics of the hydrocarbons, mitigation and the range of possible environmental conditions such as currents, wind and temperature and the relative sensitivity of a receptor. Factors identified to be most sensitive are BPPH and Marine Fauna. However, while the impacts can be severe, the overall risk is greatly diminished by the very low probability of a major hydrocarbon leak or spill occurring. Even if a leak or spill occurred, it is expected that the majority of any released condensate or diesel would evaporate within approximately 48 hours. A number of design features and management measures proposed provide a high capacity for prevention and containment.

An assessment was conducted to examine the risk to different facets of the marine and terrestrial environment from a potential rupture of LNG processing facilities or storage tank failure. Since LNG is odourless, colourless, non-combustible, non-corrosive and non-toxic, it will not pollute land or water resources. If it is spilled, either on land or water, it will form a pool and vaporize rapidly, dissipating into the atmosphere with no residual trace, although there is the potential for a flammable vapour cloud to form that would pose the risk of fire or explosion if it comes in contact with an ignition source. Due to the safety implications of such events there are multiple controls in place to ensure that the potential for a release of LNG is extremely remote. A detailed assessment of the potential risk of a failure will be undertaken as part of the Facility Safety Case, which will completed prior to the commencement of operations. The proposed controls that will be incorporated into the design to mitigate against a release will be provided in the supplement to the EIS/ERMP.

1.14 Cumulative ImpactsA cumulative assessment was undertaken on the environmental and social factors examined in the Draft EIS/ERMP. The approach was via qualitative analysis and discussion, although quantification of air emissions and terrestrial footprint was included in the evaluation of cumulative effects where known, and therefore risk rankings were not undertaken. Table 1.2 shows the past, present and reasonably foreseeable future actions that were included.

The development of the Project as a 25 MTPA multi-train LNG facility reduces the potential requirement for future expansion of Chevron’s gas-processing facilities in the Ashburton North SIA. In addition, the development of the Project as an LNG hub will lessen the need for future LNG-related port developments in the Pilbara. Therefore, the potential for future cumulative impacts not included in this assessment is reduced. Cumulative effects arising from the Project and other actions included in this assessment are considered to be either not significant or manageable through the incorporation of appropriate mitigation measures. This includes environmental and social factors, which incorporate the Ashburton Delta mangrove system, offshore island ecological communities, significant local coral reef assemblages and air-shed quality.

1.15 Wheatstone Environmental Management Program

1.15.1 Overview

The Wheatstone Environmental Management Program is structured into three tiers of management which reflects the cascading but interconnected nature of documentation required for Chevron to meet its environmental obligations. Figure 1.8 illustrates the hierarchy of management in the Wheatstone Environmental Management Program.

Tier 1 of the program comprises Chevron Corporation’s OEMS as well as Chevron’s ABU Policy 530 which is central to the implementation of the OEMS in Australia.

Tier 2 of the Environmental Management Program comprises a set of OBCs and associated Statutory EMPs. The list of proposed Statutory EMPs is based on regulatory triggers from the EP Act (WA), EPBC Act (Cth), or the specific project guidelines that have been approved by the EPA and DEWHA for this Project.

Tier 3 comprises a set of Subsidiary Plans which are defined as those environmental plans which are required by and/or impose relevant legal obligations on Chevron under legislation, but are not legally binding under the Ministerial Approvals of the EIS/ERMP. Management plans which are required for Chevron internal purposes but which are not legally binding in their own right are also included in the list of Subsidiary Plans. Subsidiary Plans will not be submitted for Ministerial Approval with the EIS/ERMP.

Key Western Australian and Commonwealth legislation relating to onshore, nearshore (State waters) and offshore (Commonwealth waters) components of the Project have been considered in developing Tier 3 of the Environmental Management Program.



Figure 1.8: Wheatstone Environmental Management Program

Tier 1: Chevron OEMS

Tier 2: Wheatstone Environmental Assessment & Management Program

Tier 3: Wheatstone Subsidiary Plans

Chevron OEMS ABU Policy 530

EIS/ERMP OBCs

Statutory EMPs

Subsidiary Plans including Management Plans, Work Instructions and Procedures

Table 1.2: Projects (Actions) Considered for Cumulative Assessment

Development Description

Wheatstone Project Proposed 25 MTPA LNG plant, offshore infrastructure and associated development

BHP Billiton / Apache Macedon Gas Development (Macedon) Proposed 200 million standard cubic feet per day (MMscfd) domestic gas (domgas) plant and offshore infrastructure

Exxon Mobil / BHP Billiton Scarborough (North West Shelf) Pilbara LNG Processing Plant (Scarborough)

Proposed 6 MTPA LNG plant, possibly with additional trestle and LNG tanker berth, and offshore infrastructure

Thevenard Island Facilities Existing hydrocarbon production and storage facility

Tubridgi Gas Field and Griffin Gas Plant Discontinued field 36 km2 in area and two discontinued gas plants designated for removal

Onslow Salt 2.5 MTPA 2.5 MTPA, currently operating and producing salt from 8000 ha of salt ponds

Pastoral Leases Existing Urala and Minderoo pastoral leases within the cumulative assessment study area

Commercial Fisheries Primarily restricted to the existing inshore prawn fishery off Onslow

Recreational Fisheries Currently conducted by local residents and visitors in coastal and nearshore areas

Onslow Town Existing community of 600 to 900 people located 12 km from the Project



1.15.2 Proposed Outcome-based Conditions

Proposed OBCs have been developed for those factors assessed as either having a high residual risk, or which otherwise have a high conservation value. Matters of NES, where different from WA-defined environmental factors, were also assessed using this approach. Chevron acknowledges that final content for any OBC for the Project will be determined by the WA Minister for the Environment.

To support the achievement of predicted environmental outcomes, each OBC, with the exception of OBC 7: Operational Marine Water and Sediment Quality Protection, is linked to an associated Statutory EMP, which are proposed for EPA review and DEWHA review/approval.

Table 1.3 lists the OBCs, and associated EMPs, that are proposed for the Project.

1.15.3 Proposed Statutory EMPs

The purpose of Statutory EMPs is to demonstrate to the EPA and DEWHA how Chevron and its contractors will maintain an acceptable standard of environmental performance in areas of medium or high risk throughout the Project. Statutory EMPs will set out the overarching objectives, strategies, performance criteria and relevant external guidance documents (such as EPA guidance statements) for all subsequent subsidiary plans.

This approach will also streamline the EMP review and approval process by providing EPA and DEWHA with fewer documents which require regulatory approval, without

reducing the level of confidence that the Project will successfully manage its environmental risks.

A summary of proposed Statutory EMPs developed/to be developed for the Project is provided in Table 1.4.

1.15.4 Subsidiary Plans

As planning and design associated with construction, commissioning, operations, and decommissioning phases are finalised, a set of additional or Subsidiary Plans are likely to be required for the implementation of the Project. Subsidiary Plans may include:

• Environmental plans which are required under legislation and/or impose relevant legal obligations on Chevron, but are not legally binding under the Ministerial Approvals of the EIS/ERMP.

• Management plans which are required for Chevron internal purposes but which are not legally binding in their own right.

Subsidiary Plans will be developed to satisfy regulatory requirements other than the EP and EPBC Acts, such plans will be submitted for regulatory approval to the relevant agencies independent of the submission of the EIS/ERMP.

Subsidiary Plans developed for internal purposes will manage environmental risks specifically related to the Project’s various works programs. Such plans will contain relevant policies, processes and work procedures agreed to between Chevron and its contractors with the intention that practicable environmental management measures are implemented and monitored for their effectiveness.

Table 1.3: Proposed Outcome-based Conditions

# Proposed Outcome-based Condition Proposed Statutory Plan

1 Coastal Processes Protection Coastal Processes Management Plan

2 Mangrove and Estuarine Habitat Protection Construction Environmental Management Plan

3 Benthic Primary Producer Habitat Protection Dredge Spoil and Disposal Management Plan

4 Marine Fauna Protection Marine Fauna Management Plan & Dredge Spoil and Disposal Management Plan

5 Terrestrial Flora and Vegetation Protection Construction Environmental Management Plan

6 Terrestrial Fauna Protection Construction Environmental Management Plan

7 Operational Marine Water and Sediment Quality Protection N/A



1.16 ConclusionThis Project presents the opportunity to provide an alternative and reliable source of LNG to international markets along with an additional secure source of domgas for the local market. The short-term economic benefits of the Project to Australia (employment opportunities and royalties to Government) are significant.

Chevron has prepared the Draft EIS/ERMP in consultation with DEWHA and the Western Australian EPA and in accordance with the EPBC Act (Cth), and the EP Act (WA).

At the request of the EPA, Chevron also agreed to implement a risk-based approach to the environmental assessment of the Project. The objectives and draft methodologies for risk-based EIA, described in the EPA draft guideline Application of risk-based assessment in EIA 2009, have been utilised in preparation of this document.

In addition to Commonwealth and State Government guidelines and Chevron corporate standards, the Project has adopted further standards to assist with the development of the EIS/ERMP. More specifically, the Project has applied EPA’s recently released Environmental

Assessment Guidelines – No. 4 Towards Outcome-based Conditions, Draft, December 2009.

Based on the various legislation and guidelines outlined above, outcomes of the EIS/ERMP include the following:

• Given the design features and management measures proposed, it is concluded that the potential impacts associated with the Project will be environmentally acceptable

• The probability of a significant unplanned hydrocarbon release occurring is very low. In this unlikely event, resulting potential environmental impacts on sensitive intertidal habitats could be significant. However, the design features and management measures proposed provide a high capacity for prevention and containment.

In summary, it is concluded that the implementation of the design features, management controls and mitigation measures described within the Draft EIS/ERMP will enable potential significant impacts to environmental, matters of NES, and socio-economic or health aspects to be managed to acceptable levels.

Table 1.4: Statutory EMPs

Plan Purpose Draft

Marine Fauna Management Plan (MFMP)

The purpose of the MFMP is to reduce the risk of potential Project-attributable impacts to marine fauna as a result of marine based project activities such as nearshore installation (rock placement, piling, pipeline installation) and shipping associated with the Wheatstone Project.

Appendix O6

Dredging and Spoil Disposal Management Plan (DSDMP)

The purpose of the DSDMP is to reduce additional loss of benthic primary producer habitat (BPPH) to that specified in the ERMP for the nearshore coastal waters as a result of Chevron’s dredging and spoil disposal operations.

Appendix S1

Coastal Processes Management Plan (CPMP)

The purpose of the finalised CPMP is to reduce potential Project-attributable impacts to coastal processes associated with the placement of project marine infrastructure of the Wheatstone Project.

Appendix T1

Construction Environmental Management Plan (CEMP)

The purpose of the CEMP is to reduce the Project-attributable impacts of onshore construction (vegetation clearing, earthworks, vehicle access) and nearshore installation (rock placement, piling, and shipping) associated with the Wheatstone Project.

Appendix U1

Operations Environmental Management Plan (OEMP)

The purpose of the OEMP is to reduce the Project-attributable impacts of onshore operations and associated activities including, LNG and Domgas production, FIFO operations, vehicle access and product shipping associated with the Wheatstone Project.

To Be Developed

Decommissioning Environmental Management Plan (DEMP)

The purpose of the DEMP is to reduce Project-attributable impacts of all activities associated with the shutdown and decommissioning of the Wheatstone Project at the end of the project lifespan.

To Be Developed



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ial

pla

ced

off

sho

re

• D

red

gin

g

cam

pai

gn

d

ura

tio

n is

3-4

ye

ars

• Im

pa

cts

to w

ater

q

ual

ity

are

pre

dic

ted

to b

e te

mp

ora

ry

Rea

son

able

Mo

del

ling

co

nd

uct

ed

and

co

nfi

rms

imp

act

p

red

icti

on

s

No

t A

pp

licab

leS

ect

ion

8.2



Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Dre

dg

ing

:

Pla

cem

ent

of

dre

dg

e m

ater

ial

on

sho

re

• In

crea

sed

tu

rbid

ity

and

ligh

t at

ten

uat

ion

du

e to

d

eca

nt

wat

er

dis

char

ge

exce

ed

ing

ap

plic

able

wat

er

qu

alit

y ta

rget

s

33

Mediu

m•

Th

e o

nsh

ore

dre

dg

ed

mat

eria

l will

b

e co

nta

ine

d in

a b

un

de

d ar

ea t

o

red

uce

th

e ri

sk o

f an

un

con

fin

ed

re

leas

e o

f se

awat

er a

nd

sed

imen

ts

• A

dra

ina

ge

dit

ch (w

ith

su

mp

and

p

um

p sy

stem

) w

ill b

e in

stal

led

to

colle

ct a

nd

div

ert

seep

ag

e aw

ay

fro

m t

he

Ash

bu

rto

n D

elta

sys

tem

• D

isch

arg

e o

f d

eca

nt

wat

er f

rom

th

e o

nsh

ore

dre

dg

e m

ater

ial

pla

cem

ent

site

will

be

via

a co

ntr

olle

d p

oin

t w

hic

h w

ill in

clu

de

the

use

of

a w

eir

bo

x to

man

ag

e w

ater

hei

gh

t

• D

isch

arg

e w

ater

will

be

mo

nit

ore

d,

wit

h t

he

ob

ject

ive

of

mai

nta

inin

g

the

dis

char

ge

wat

er q

ual

ity

into

th

e n

ears

ho

re a

rea

at a

leve

l no

t in

ex

cess

of

25

0 m

g/L

To

tal

Su

spen

de

d S

olid

s (T

SS

). H

ow

ever

, th

is m

ay b

e re

fin

ed

bas

ed

on

fe

ed

ba

ck in

form

atio

n f

rom

m

on

ito

rin

g p

rog

ram

s

• M

on

ito

rin

g o

f d

eca

nt

wat

er

dis

char

ge

will

be

un

der

take

n w

ith

th

e o

bje

ctiv

e o

f co

mp

lyin

g w

ith

th

e m

axim

um

tu

rbid

ity

limit

of

25

0 m

g/L

TS

S

42

Mediu

m•

Incr

ease

d

turb

idit

y re

sult

ing

fro

m

de

can

t w

ater

re

leas

e w

ill b

e te

mp

ora

ry

• R

ece

ivin

g w

ater

s fo

r d

eca

nt

wat

er

are

seas

on

ally

tu

rbid

(A

shb

urt

on

R

iver

flo

w a

nd

cy

clo

nes

)

Rea

son

able

Mo

del

ling

co

nd

uct

ed

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Nea

rsh

ore

C

on

stru

ctio

n

Act

ivit

ies:

Co

nst

ruct

ion

of

pro

du

ct lo

ad

ing

fa

cilit

y (P

LF

) an

d ro

ck

pla

cem

ent

for

mat

eria

ls

offl

oa

din

g

faci

lity

(MO

F)

bre

akw

ater

w

alls

an

d

tru

nkl

ine

tren

chin

g an

d

stab

ilisa

tio

n

• C

han

ges

to

tu

rbid

ity

and

ligh

t at

ten

uat

ion

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• N

ears

ho

re in

fras

tru

ctu

re lo

cati

on

h

as b

een

sel

ect

ed

to r

ed

uce

ris

ks

to s

ensi

tive

wat

er q

ual

ity

rece

pto

rs

wh

ere

pra

ctic

able

• A

ctiv

ity

will

be

un

der

take

n in

a

cco

rdan

ce w

ith

th

e C

EM

P w

hic

h

will

be

fin

aliz

ed

pri

or

to

com

men

cem

ent

of

con

stru

ctio

n

act

ivit

ies

• A

DS

DM

P s

pe

cifi

c to

tru

nkl

ine

tren

chin

g a

ctiv

itie

s w

ill b

e d

evel

op

ed

61

Low

• L

oca

lise

d an

d

tem

po

rary

im

pa

cts

on

w

ater

qu

alit

y

• C

on

stru

ctio

n in

a

seas

on

ally

tu

rbid

mar

ine

envi

ron

men

t (A

shb

urt

on

R

iver

flo

w a

nd

cy

clo

nes

)

Rea

son

able

Su

rvey

dat

a av

aila

ble

an

d

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

8.2

Ap

pen

dix

U

1

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Nea

rsh

ore

C

on

stru

ctio

n

Act

ivit

ies:

Nea

rsh

ore

tr

un

klin

e tr

ench

ing

and

st

abili

sati

on

• C

han

ges

to

tu

rbid

ity

and

ligh

t at

ten

uat

ion

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

DS

DM

P f

or

com

ple

te li

st o

f m

itig

atio

n m

easu

res

• Tr

un

klin

e ro

ute

loca

tio

n h

as b

een

se

lect

ed

to r

ed

uce

ris

ks t

o

sen

siti

ve w

ater

qu

alit

y re

cep

tors

w

her

e p

ract

icab

le

• U

se g

rad

ed

rock

mat

eria

l wit

h

red

uce

d fi

nes

co

nte

nt

42

Mediu

m•

Imp

act

s to

wat

er

qu

alit

y h

ave

be

en m

od

elle

d

con

serv

ativ

ely

du

e to

u

nce

rtai

nty

in

dre

dg

ing

m

eth

od

olo

gy

Rea

son

able

Su

rvey

dat

a av

aila

ble

an

d

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

8.2

Ap

pen

dix

S

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)C

om

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Nea

rsh

ore

C

on

stru

ctio

n

Act

ivit

ies:

Tru

nkl

ine

sho

re

cro

ssin

g b

y tr

ench

ing

• C

han

ges

to

tu

rbid

ity

and

ligh

t at

ten

uat

ion

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

ctiv

ity

will

be

un

der

take

n in

a

cco

rdan

ce w

ith

th

e C

EM

P w

hic

h

will

be

fin

aliz

ed

pri

or

to

com

men

cem

ent

of

con

stru

ctio

n

act

ivit

ies

• U

se g

rad

ed

rock

mat

eria

l wit

h lo

w

fin

es c

on

ten

t

51

Mediu

m•

Dis

turb

ance

of

the

Ash

bu

rto

n

Eas

t la

go

on

fl

oo

r an

d

ad

jace

nt

seafl

oo

r w

ill

resu

lt in

te

mp

ora

ry

elev

ate

d

turb

idit

y le

vels

Rea

son

able

Su

rvey

dat

a av

aila

ble

an

d

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

8.2

Ap

pen

dix

U

1

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Nea

rsh

ore

C

on

stru

ctio

n

Act

ivit

ies:

Tru

nkl

ine

sho

re

cro

ssin

g b

y m

icro

tun

nel

ling

• C

han

ges

to

tu

rbid

ity

and

ligh

t at

ten

uat

ion

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• Tr

un

klin

e sh

ore

cro

ssin

g to

be

inst

alle

d th

rou

gh

mic

rotu

nn

ellin

g

• A

ctiv

ity

will

be

un

der

take

n in

a

cco

rdan

ce w

ith

th

e C

EM

P w

hic

h

will

be

fin

aliz

ed

pri

or

to

com

men

cem

ent

of

con

stru

ctio

n

act

ivit

ies

62

Low

• L

imit

ed

d

istu

rban

ce t

o

the

seafl

oo

r

• Te

mp

ora

ry

incr

ease

in

turb

idit

y n

ear

the

seafl

oo

r en

tran

ce o

f th

e tu

nn

el d

uri

ng

co

nst

ruct

ion

Rea

son

able

Su

rvey

dat

a av

aila

ble

an

d

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

8.2

Ap

pen

dix

U

1

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Ves

sel

Mo

vem

ents

• A

ccu

mu

lati

on

of

anti

-fo

ulin

g p

ain

ts

in m

arin

e se

dim

ents

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

ll ve

ssel

s u

nd

er t

he

con

tro

l of

the

Pro

po

nen

t w

ill c

om

ply

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n o

n t

he

Co

ntr

ol o

f H

arm

ful A

nti

-fo

ulin

g

Sys

tem

s o

n S

hip

s as

mo

nit

ore

d b

y A

ust

ralia

n Q

uar

anti

ne

and

In

spe

ctio

n S

ervi

ce (

AQ

IS)

43

Low

• V

esse

ls w

ill

com

ply

wit

h t

he

req

uir

emen

ts o

f A

QIS

Hig

h

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Dis

char

ges

fr

om

On

sho

re

Co

nst

ruct

ion

:

Co

nst

ruct

ion

d

isch

arg

es

fro

m t

he

acc

om

mo

da

-ti

on

vill

ag

e,

sto

rmw

ater

ru

n-o

ff a

nd

re

vers

e o

smo

sis

bri

ne.

• E

xce

ed

ence

of

app

licab

le w

ater

q

ual

ity

tar

get

s o

uts

ide

the

mix

ing

zo

ne

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

ctiv

ity

will

be

un

der

take

n in

a

cco

rdan

ce w

ith

th

e C

EM

P w

hic

h

will

be

fin

aliz

ed

pri

or

to

com

men

cem

ent

of

con

stru

ctio

n

act

ivit

ies

• N

ears

ho

re d

isch

arg

e lo

cati

on

s h

ave

be

en s

ele

cte

d to

re

du

ce r

isks

to

sen

siti

ve w

ater

qu

alit

y re

cep

tors

• M

ana

ge

dis

char

ges

by

taki

ng

into

a

cco

un

t th

e th

resh

old

lim

its

of

the

AN

ZE

CC

/AR

MC

AN

Z g

uid

elin

es

• D

iffu

ser

des

ign

ed

to o

pti

mis

e th

e d

iluti

on

of

the

dis

char

ge

wit

hin

th

e m

arin

e en

viro

nm

ent.

• M

ixin

g zo

ne

bo

un

dar

ies

to b

e es

tab

lish

ed

and

mo

nit

ori

ng

to

ach

ieve

ap

plic

able

wat

er q

ual

ity

targ

ets

at m

ixin

g zo

ne

bo

un

dar

y

52

Low

• T

he

use

of

a d

iffu

ser

to

incr

ease

rap

id

dilu

tio

n

• C

on

stru

ctio

n

dis

char

ges

will

b

e te

mp

ora

ry

Rea

son

able

to

Low

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e to

in

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.2

Ap

pen

dix

U

1



Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Co

nst

ruct

ion

Dis

char

ges

fr

om

Off

sho

re

Co

nst

ruct

ion

• E

xce

ed

ence

of

app

licab

le

AN

ZE

CC

/A

RM

CA

NZ

g

uid

elin

es t

hro

ug

h

dis

char

ge

of

dri

ll cu

ttin

gs

and

m

ud

s, s

ewa

ge

fro

m v

esse

ls a

nd

h

ydro

test

wat

er

34

Low

• T

he

risk

as

sess

men

t as

sum

es

po

ten

tial

of

ou

tfal

l lin

e d

isch

arg

e to

sea

, w

hic

h m

ay

incl

ud

e p

rod

uce

d w

ater

(P

W)

and

the

po

ten

tial

fo

r d

isch

arg

e o

f P

W

fro

m p

latf

orm

s

• T

his

ass

essm

ent

also

ass

um

es

that

th

e d

isch

arg

e in

to

the

envi

ron

men

t w

ill m

eet

m

inim

um

st

and

ard

s.

Ass

essm

ent

con

sid

ere

d th

e si

ze o

f th

e d

evel

op

men

t (u

ltim

ate

25

M

TP

A p

lan

t), i

ts

op

erat

ion

al li

fe

and

po

ten

tial

fo

r si

gn

ifica

nt

qu

anti

ties

of

dis

char

ge

• C

om

plia

nce

wit

h O

ffsh

ore

P

etro

leu

m a

nd

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t) R

eg

ula

tio

ns

20

09

as

they

ap

ply

fro

m t

ime

to

tim

e

• Tr

eatm

ent

in c

om

plia

nce

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n fo

r th

e P

reve

nti

on

of

Po

lluti

on

fro

m S

hip

s (M

AR

PO

L 7

3/7

8, A

nn

ex IV

)

• C

on

tro

lled

rele

ase

of

hyd

rote

st

wat

er t

o r

ed

uce

th

e ri

sk o

f to

xici

ty

imp

act

s

43

Low

• D

isch

arg

es f

rom

o

ffsh

ore

co

nst

ruct

ion

will

co

mp

ly w

ith

re

leva

nt

Co

nve

nti

on

s an

d

Re

gu

lati

on

s (C

om

plia

nce

w

ith

Off

sho

re

Pet

role

um

an

d

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t)

Re

gu

lati

on

s 2

00

9, M

AR

PO

L)

• C

on

stru

ctio

n

dis

char

ges

will

b

e te

mp

ora

ry

Hig

h

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

(fro

m s

imila

r p

roje

cts)

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sM

ain

ten

ance

D

red

gin

g•

Incr

ease

d

turb

idit

y an

d li

gh

t at

ten

uat

ion

ex

cee

ds

wat

er

qu

alit

y ta

rget

s

• M

ob

ilisa

tio

n o

f co

nta

min

ants

d

uri

ng

dre

dg

ing

le

ad

s to

an

ex

cee

den

ce o

f st

and

ard

s

33

Mediu

m•

Ass

um

es t

his

a

ctiv

ity

will

re

sult

in a

re

du

ctio

n in

ex

isti

ng

wat

er

qu

alit

y

• T

he

exis

tin

g

nea

rsh

ore

en

viro

nm

ent

is

seas

on

ally

h

igh

ly t

urb

id d

ue

to in

pu

ts f

rom

th

e A

shb

urt

on

R

iver

• O

ffsh

ore

wat

er

is m

ore

ch

ara

cter

isti

c o

f cl

ear

oce

anic

w

ater

s w

ith

less

tu

rbid

ity

and

se

dim

enta

tio

n

than

nea

rsh

ore

w

ater

s

• P

ote

nti

al n

ee

d

for

com

mu

nit

y e

du

cati

on

re

gar

din

g

visi

bili

ty o

f p

lum

e ve

rsu

s im

pa

ct

• S

urv

eys

will

be

un

der

take

n t

o

con

firm

nat

ura

l tu

rbid

ity

and

se

dim

enta

tio

n r

ates

an

d

con

tam

inat

ion

leve

ls

53

Low

• T

he

pre

dic

ted

m

ain

ten

ance

d

red

gin

g

volu

mes

are

low

fo

r th

e p

rop

ose

d

life

of

the

Pro

ject

• M

ain

ten

ance

d

red

gin

g is

p

red

icte

d to

be

sho

rt t

erm

Low

No

su

rvey

dat

a

No

mo

del

ve

rifi

cati

on

p

oss

ible

at

this

ti

me.

No

t A

pp

licab

leS

ect

ion

8.2



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sR

elea

se o

f N

OR

M•

Acc

um

ula

ted

N

OR

M in

on

sho

re

pro

cess

filt

ers

wh

ich

may

cau

se

con

tam

inat

ion

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• U

se o

f a

scal

e in

hib

ito

r to

man

ag

e b

uild

-up

of

scal

e (a

nd

ther

efo

re

nat

ura

lly o

ccu

rrin

g ra

dio

act

ive

mat

eria

l [N

OR

M])

• A

n a

pp

rove

d N

OR

M M

ana

gem

ent

Pla

n w

ill b

e d

evel

op

ed

on

id

enti

fica

tio

n o

f N

OR

M

• M

ana

gem

ent

and

dis

po

sal o

f N

OR

M in

acc

ord

ance

wit

h t

he

Gu

idel

ines

fo

r th

e m

ana

gem

ent

of

NO

RM

in t

he

oil

& g

as in

du

stry

(I

nte

rnat

ion

al A

sso

ciat

ion

of

Oil

and

Gas

Pro

du

cers

20

08

)

45

Ver

y

Low

• W

her

e p

rese

nt,

N

OR

M w

ill b

e m

ana

ge

d to

th

e re

qu

ire

d

stan

dar

ds

Hig

h

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sV

esse

l M

ove

men

ts•

Acc

um

ula

tio

n o

f an

ti-f

ou

ling

pai

nts

in

mar

ine

sed

imen

ts.

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

ll ve

ssel

s u

nd

er t

he

con

tro

l of

the

Pro

po

nen

t w

ill c

om

ply

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n o

n t

he

Co

ntr

ol o

f H

arm

ful A

nti

-fo

ulin

g

Sys

tem

s o

n S

hip

s as

mo

nit

ore

d b

y A

QIS

43

Low

• V

esse

ls w

ill

com

ply

wit

h t

he

req

uir

emen

ts o

f A

QIS

Hig

h

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sD

isch

arg

es

fro

m O

nsh

ore

O

per

atio

ns:

Nea

rsh

ore

d

isch

arg

e o

f w

aste

wat

er,

pro

cess

w

aste

wat

er,

con

tact

st

orm

wat

er a

nd

R

O b

rin

e

• E

xce

ed

ence

of

app

licab

le w

ater

q

ual

ity

tar

get

s o

uts

ide

the

mix

ing

zo

ne

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

Cs

for

wat

er q

ual

ity

• E

nd

of

pip

e d

iffu

ser

loca

ted

at t

he

PL

F

• M

ana

ge

dis

char

ges

by

taki

ng

into

a

cco

un

t th

e th

resh

old

lim

its

of

the

AN

ZE

CC

/AR

MC

AN

Z g

uid

elin

es

• M

ixin

g zo

ne

bo

un

dar

ies

to b

e es

tab

lish

ed

and

mo

nit

ori

ng

to

ach

ieve

ap

plic

able

wat

er q

ual

ity

targ

ets

at m

ixin

g zo

ne

bo

un

dar

y

52

Low

• T

he

use

of

a d

iffu

ser

to

incr

ease

rap

id

dilu

tio

n

Rea

son

able

to

Low

No

t al

l ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.2

Tab

le 12

.10

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sD

isch

arg

es

fro

m O

nsh

ore

O

per

atio

ns:

Dis

char

ge

of

PW

fro

m t

he

LN

G p

lan

t

• E

xce

ed

ence

of

the

targ

ets

for

Pre

dic

ted

No

E

ffe

ct

Co

nce

ntr

atio

n

(PN

EC

) co

nce

ntr

atio

n

ou

tsid

e th

e m

ixin

g

zon

e

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

Cs

for

wat

er q

ual

ity

• S

ele

ctio

n o

f o

utf

all l

oca

tio

n a

nd

d

iffu

ser

des

ign

fo

r a

de

qu

ate

dilu

tio

n a

nd

dis

per

sio

n o

f P

W

• T

he

Pro

po

nen

t w

ill c

har

act

eris

e P

W, p

rio

r to

th

e P

W b

ein

g b

rou

gh

t o

nsh

ore

to

det

erm

ine

app

rop

riat

e d

iluti

on

rat

es t

o a

chie

ve P

NE

C, t

o

det

erm

ine

a d

isch

arg

e lo

cati

on

an

d

to d

eter

min

e a

mix

ing

zon

e ar

ea

that

is a

ccep

tab

le t

o t

he

reg

ula

tory

a

gen

cies

EP

A a

nd

DE

WH

A

• D

iffu

ser

des

ign

an

d si

ze o

f m

ixin

g

zon

e sh

all t

ake

into

co

nsi

der

atio

n

the

ag

ree

d ta

rget

fo

r P

NE

C

• M

on

ito

r P

W c

on

cen

trat

ion

s p

rio

r to

d

isch

arg

e

42

Mediu

m•

Dis

char

ges

of

PW

will

be

man

ag

ed

to

com

ply

wit

h

rele

van

t R

eg

ula

tio

ns

(Off

sho

re

Pet

role

um

an

d

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t)

Re

gu

lati

on

s 2

00

9)

Low

Ava

ilab

le

info

rmat

ion

is

ina

de

qu

ate

No

t A

pp

licab

leS

ect

ion

8.2

Tab

le 12

.10



Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sD

isch

arg

es

fro

m O

ffsh

ore

O

per

atio

ns

• E

xce

ed

ence

of

targ

ets

for

PN

EC

o

f P

W.

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

om

plia

nce

wit

h O

ffsh

ore

P

etro

leu

m a

nd

Gre

enh

ou

se

Gas

Sto

rag

e (E

nvi

ron

men

t)

Re

gu

lati

on

s 2

00

9

• T

he

Pro

po

nen

t w

ill d

eter

min

e P

NE

C f

or

PW

dis

char

ge

thro

ug

h

eco

toxi

city

tes

tin

g an

d o

r b

ench

mar

kin

g w

ith

sim

ilar

NW

S

PW

• P

erio

dic

PW

dis

char

ge

test

ing

wit

h

full

chem

ical

ch

ara

cter

isat

ion

d

uri

ng

op

erat

ion

s

• M

on

ito

r P

W c

on

cen

trat

ion

s p

rio

r to

d

isch

arg

e

42

Mediu

m•

Dis

char

ges

of

PW

will

be

man

ag

ed

to

com

ply

wit

h

rele

van

t R

eg

ula

tio

ns

(Off

sho

re

Pet

role

um

an

d

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t)

Re

gu

lati

on

s 2

00

9)

Rea

son

able

Mo

del

ling

co

nd

uct

ed

bu

t ca

libra

tio

n s

ho

ws

occ

asio

nal

ab

erra

tio

n f

rom

o

ccu

rren

ces

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sD

isch

arg

es

fro

m O

ffsh

ore

O

per

atio

ns

• E

xce

ed

ence

of

targ

ets

for

ME

G

and

BT

EX

in P

W

du

rin

g st

art-

up

s

• D

iffu

ser

des

ign

an

d si

ze o

f m

ixin

g

zon

e sh

all t

ake

into

co

nsi

der

atio

n

the

targ

et f

or

PN

EC

• C

on

tro

l rat

e, t

imin

g an

d

char

act

eris

tics

of

dis

char

ge

of

ME

G

wit

h t

he

ob

ject

ive

of

mai

nta

inin

g

dis

char

ge

wat

er q

ual

ity

at a

leve

l n

ot

in e

xces

s o

f 5

0 m

g/L

loca

l to

th

e p

latf

orm

(or

an a

gre

ed

dis

tan

ce

fro

m t

he

pla

tfo

rm)

41

Hig

h•

Dis

char

ges

will

o

ccas

ion

ally

ex

cee

d P

NE

C

con

cen

trat

ion

s o

uts

ide

the

mix

ing

zon

e

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sD

isch

arg

es

fro

m O

ffsh

ore

O

per

atio

ns

• E

xce

ed

ence

of

targ

ets

for

Co

olin

g

Wat

er (C

W)

• D

iffu

ser

des

ign

an

d si

ze o

f m

ixin

g

zon

e sh

all t

ake

into

co

nsi

der

atio

n

the

targ

et f

or

CW

plu

me

42

Mediu

m•

Dis

char

ges

of

CW

will

be

man

ag

ed

to

com

ply

wit

h

rele

van

t R

eg

ula

tio

ns

(Off

sho

re

Pet

role

um

an

d

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t)

Re

gu

lati

on

s 2

00

9)

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sD

isch

arg

es

fro

m O

ffsh

ore

O

per

atio

ns:

Dis

char

ge

of

sew

ag

e an

d

pu

tres

cib

le

org

anic

was

te

and

bri

ne

• C

han

ges

to

b

ack

gro

un

d w

ater

an

d se

dim

ent

qu

alit

y

• Tr

eatm

ent

in c

om

plia

nce

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n f

or

the

Pre

ven

tio

n o

f P

ollu

tio

n f

rom

Sh

ips

(MA

RP

OL

73

/78

, An

nex

IV)

63

Ver

y

Low

• D

isch

arg

es f

rom

o

ffsh

ore

o

per

atio

ns

will

b

e m

ana

ge

d to

co

mp

ly w

ith

re

leva

nt

Co

nve

nti

on

s (M

AR

PO

L)

• R

apid

up

take

of

bio

avai

lble

n

utr

ien

ts b

y p

hy

top

lan

kto

n

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.2



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sL

eaks

an

d S

pill

s•

Nea

rsh

ore

leak

s an

d sp

ills

ente

rin

g

the

mar

ine

envi

ron

men

t an

d

de

gra

din

g m

arin

e w

ater

an

d

sed

imen

t q

ual

ity

34

Low

• R

isk

asse

ssm

ent

con

sid

ere

d a

hig

hly

mo

bile

, h

igh

en

erg

y sy

stem

• R

isk

asse

ssm

ent

bas

ed

on

a

wo

rst-

case

a

ccu

mu

lati

on

of

con

tam

inan

ts in

se

dim

ents

fro

m

leak

s

• In

tert

idal

are

as

con

sid

ere

d m

ost

se

nsi

tive

to

th

is

imp

act

• A

Dep

artm

ent

of

Min

es a

nd

P

etro

leu

m (

DM

P)

app

rove

d M

arin

e O

il P

ollu

tio

n P

lan

(M

OP

P)

will

be

imp

lem

ente

d an

d re

leva

nt

per

son

nel

will

be

trai

ne

d in

a

cco

rdan

ce w

ith

th

e M

OP

P

• T

he

follo

win

g m

easu

res

will

be

use

d d

uri

ng

dri

llin

g a

ctiv

itie

s to

re

du

ce t

he

risk

of

a su

bse

a b

low

ou

t:

Pro

visi

on

of

nu

mer

ou

s p

rim

ary

• an

d se

con

dar

y b

arri

ers

(su

bse

a sa

fety

val

ves,

Pro

du

ctio

n

Mas

ter

Val

ve, S

wab

Val

ve,

Tre

e C

up

, Pro

du

ctio

n S

hu

tdo

wn

V

alve

, Pro

du

ctio

n W

ing

Val

ve

etc)

Wel

l bo

re s

tab

ility

mo

del

ing

for

• re

serv

oir

an

d o

verb

urd

en

form

atio

ns

Sp

eci

fic

and

app

rove

d co

ntr

ols

•

for

wo

rk-o

ver

or

re-e

ntr

y o

per

atio

ns

24

Mediu

m•

Th

e p

rob

abili

ty

of

larg

e sc

ale

leak

s an

d sp

ills

asso

ciat

ed

wit

h

nea

rsh

ore

in

fras

tru

ctu

re

is lo

w

• T

he

abili

ty t

o

con

tain

a

nea

rsh

ore

leak

o

r sp

ill

• C

on

den

sate

h

igh

ly t

oxi

c to

m

ang

rove

se

ed

ling

s b

ut

evap

ora

tes

rap

idly

co

mp

are

d w

ith

cr

ud

e o

il

• Im

ple

men

tati

on

o

f th

e M

OP

P

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.2

Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Op

erat

ion

sL

eaks

an

d S

pill

s•

Off

sho

re le

aks

and

sp

ills

ente

rin

g th

e m

arin

e en

viro

nm

ent

and

d

eg

rad

ing

mar

ine

wat

er a

nd

se

dim

ent

qu

alit

y

• R

efer

to

“N

ears

ho

re le

aks

and

sp

ills

ente

rin

g th

e m

arin

e en

viro

nm

ent”

ab

ove

34

Low

• T

he

pro

bab

ility

o

f la

rge

scal

e le

aks

and

spill

s as

soci

ate

d w

ith

o

ffsh

ore

in

fras

tru

ctu

re is

lo

w. A

do

pti

on

of

des

ign

pra

ctic

es

to r

ed

uce

th

e ri

sk o

f sp

ills

• Im

ple

men

tati

on

o

f th

e M

OP

P

• C

on

den

sate

an

d

die

sel r

apid

ly

evap

ora

te a

nd

d

isp

erse

in t

his

en

viro

nm

ent,

re

du

cin

g th

e ri

sk

of

imp

act

to

se

nsi

tive

re

cep

tors

• L

ack

of

wat

er

qu

alit

y se

nsi

tive

re

cep

tors

at

the

off

sho

re w

ell

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.2



Mari

ne

Wate

r an

d

Sedim

ent

Qu

ality

Ad

dit

ive

Eff

ect

s•

Th

e su

m o

f al

l p

ote

nti

al

Pro

ject

-at

trib

uta

ble

im

pa

cts

fro

m a

ll P

roje

ct p

has

es

and

asp

ect

s

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

ee

abo

ve f

or

pro

po

sed

m

ana

gem

ent/

mit

igat

ion

mea

sure

s4

1H

igh

• T

he

risk

ran

kin

g

of

the

ad

dit

ive

effe

cts

of

all

Pro

ject

asp

ect

s is

det

erm

ine

d b

y th

e h

igh

est

risk

ra

nki

ng

of

any

ind

ivid

ual

asp

ect

• T

he

hig

h r

isk

ran

kin

g o

f th

e a

dd

itiv

e ef

fect

s is

det

erm

ine

d b

y th

e h

igh

ris

k ra

nki

ng

of

the

ind

ire

ct im

pa

cts

of

con

stru

ctio

n

dre

dg

ing

Low

No

t A

pp

licab

leS

ect

ion

8.2

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dre

dg

ing

• D

ire

ct: L

oss

of

sub

-tid

al B

PP

H

thro

ug

h r

emo

val

wit

hin

Pro

ject

are

a

32

Hig

h•

Lev

el o

f cr

itic

al

loss

will

be

det

erm

ine

d o

nce

th

e m

ana

gem

ent

un

it h

as b

een

d

efin

ed

• R

isk

ran

kin

g is

b

ase

d o

n

• L

oss

of

mar

ine

BP

PH

• R

isk

ran

kin

g

assu

mes

re

gu

lar

mai

nte

nan

ce

dre

dg

ing

• A

lso

co

nsi

der

ed

p

ote

nti

al fl

ow

-on

ef

fect

s to

th

e fi

shin

g in

du

stry

e.

g. fi

sh n

urs

ery

and

bre

ed

ing

ar

eas

• N

ears

ho

re in

fras

tru

ctu

re lo

cati

on

b

ase

d o

n p

rese

nce

or

abse

nce

of

BP

PH

an

d M

arin

e P

rote

cte

d A

reas

61

Low

• T

her

e is

lim

ite

d

BP

PH

in, a

nd

im

me

dia

tely

a

dja

cen

t to

, th

e d

red

ge

area

Rea

son

able

Exc

elle

nt

surv

ey

dat

a, m

od

ellin

g

con

du

cte

d

No

t A

pp

licab

leS

ect

ion

8.3



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dre

dg

ing

• In

dir

ect

: Im

pa

ct t

o

BP

PH

du

e to

in

crea

sed

tu

rbid

ity,

se

dim

enta

tio

n a

nd

lig

ht

atte

nu

atio

n

lea

din

g to

loss

of

BP

PH

in e

xces

s o

f a

ccep

tab

le le

vels

as

defi

ne

d in

EP

A

Gu

idel

ines

.

32

Hig

h•

Lev

el o

f cr

itic

al

loss

will

be

det

erm

ine

d o

nce

th

e m

ana

gem

ent

un

it h

as b

een

d

efin

ed

• R

isk

ran

kin

g is

b

ase

d o

n

• L

oss

of

mar

ine

BP

PH

• R

isk

ran

kin

g

assu

mes

re

gu

lar

mai

nte

nan

ce

dre

dg

ing

• A

lso

co

nsi

der

ed

p

ote

nti

al fl

ow

-on

ef

fect

s to

th

e fi

shin

g in

du

stry

e.

g. fi

sh n

urs

ery

and

bre

ed

ing

ar

eas

• R

efer

to

DS

DM

P f

or

com

ple

te li

st o

f m

itig

atio

n m

easu

res

• Im

ple

men

tati

on

of

mo

nit

ori

ng

p

rog

ram

s o

utl

ine

d in

th

e D

SD

MP

:

Wat

er q

ual

ity

mo

nit

ori

ng

•

loca

ted

in a

reas

of

key

sen

siti

ve

rece

pto

rs

Co

ral h

ealt

h m

on

ito

rin

g w

ith

in

• th

e Z

on

e o

f P

arti

al L

oss

, wit

h a

n

asso

ciat

ed

tier

ed

man

ag

emen

t re

spo

nse

Co

nti

ng

ency

co

ral h

ealt

h

• m

on

ito

rin

g w

ith

in t

he

Zo

ne

of

Infl

uen

ce u

nd

erta

ken

in t

he

even

t th

at w

ater

qu

alit

y tr

igg

ers

are

exce

ed

ed

, wit

h a

n

asso

ciat

ed

tier

ed

man

ag

emen

t re

spo

nse

Pre

-sp

awn

ing

and

po

st-

• sp

awn

ing

mo

nit

ori

ng

of

cora

l g

ravi

dit

y

Mo

nit

ori

ng

of

sea

gra

ss a

nd

•

oth

er B

PP

H w

ill b

e ca

rrie

d o

ut

pre

an

d p

ost

dre

dg

ing

o

per

atio

ns

and

du

rin

g su

mm

er

and

win

ter

to c

aptu

re

seas

on

alit

y.

41

Hig

h•

Lar

ge

volu

mes

o

f se

dim

ent

to

be

dre

dg

ed

• D

red

gin

g

cam

pai

gn

d

ura

tio

n is

3-4

ye

ars

• T

her

e is

lim

ite

d

BP

PH

in, a

nd

im

me

dia

tely

a

dja

cen

t to

, th

e d

red

ge

area

Rea

son

able

Exc

elle

nt

surv

ey

dat

a, m

od

ellin

g

con

du

cte

d

No

t A

pp

licab

leS

ect

ion

8.3

Ap

pen

dix

S

1

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dre

dg

ing

:

Dre

dg

e m

ater

ial

pla

cem

ent

off

sho

re

• D

ire

ct: L

oss

of

sub

-tid

al B

PP

H

du

e to

pla

cem

ent

of

dre

dg

e m

ater

ial

dir

ect

ly o

n s

ea

be

d.

• S

ele

ctio

n o

f d

red

ge

mat

eria

l p

lace

men

t si

tes

to r

ed

uce

ris

ks t

o

BP

PH

wh

ere

pra

ctic

able

61

Low

• T

her

e is

lim

ite

d

BP

PH

in, a

nd

im

me

dia

tely

a

dja

cen

t to

, th

e p

lace

men

t si

tes

• C

ora

ls c

lose

st t

o

pla

cem

ent

site

s m

on

ito

red

to

con

firm

no

a

dve

rse

imp

act

s fr

om

pla

cem

ent

act

ivit

ies

Rea

son

able

Exc

elle

nt

surv

ey

dat

a, m

od

ellin

g

con

du

cte

d

No

t A

pp

licab

leS

ect

ion

8.3



Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dre

dg

ing

:

Dre

dg

e m

ater

ial

pla

cem

ent

off

sho

re

• In

dir

ect

: Im

pa

ct o

n

BP

PH

du

e to

in

crea

sed

tu

rbid

ity,

se

dim

enta

tio

n a

nd

lig

ht

atte

nu

atio

n.

32

Hig

h•

Lev

el o

f cr

itic

al

loss

will

be

det

erm

ine

d o

nce

th

e m

ana

gem

ent

un

it h

as b

een

d

efin

ed

• R

isk

ran

kin

g is

b

ase

d o

n

• L

oss

of

mar

ine

BP

PH

• R

isk

ran

kin

g

assu

mes

re

gu

lar

mai

nte

nan

ce

dre

dg

ing

• A

lso

co

nsi

der

ed

p

ote

nti

al fl

ow

-on

ef

fect

s to

th

e fi

shin

g in

du

stry

e.

g. fi

sh n

urs

ery

and

bre

ed

ing

ar

eas

• R

efer

to

DS

DM

P f

or

com

ple

te li

st o

f m

itig

atio

n m

easu

res

• D

iffu

sers

will

be

uti

lise

d d

uri

ng

o

ffsh

ore

dre

dg

e m

ater

ial

pla

cem

ent

via

the

CS

D

42

Mediu

m•

Th

ere

is li

mit

ed

B

PP

H in

, an

d

imm

ed

iate

ly

ad

jace

nt

to, t

he

pla

cem

ent

site

s

• C

ora

ls c

lose

st t

o

site

mo

nit

ore

d

to c

on

firm

no

a

dve

rse

imp

act

s fr

om

pla

cem

ent

act

ivit

ies

Rea

son

able

Exc

elle

nt

surv

ey

dat

a, m

od

ellin

g

con

du

cte

d

No

t A

pp

licab

leS

ect

ion

8.3

Ap

pen

dix

S

1

Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dre

dg

ing

• In

dir

ect

: Im

pa

ct t

o

BP

PH

du

e to

in

crea

sed

tu

rbid

ity,

se

dim

enta

tio

n a

nd

lig

ht

atte

nu

atio

n

lea

din

g to

loss

of

BP

PH

in e

xces

s o

f a

ccep

tab

le le

vels

as

defi

ne

d in

EP

A

Gu

idel

ines

.

32

Hig

h•

Lev

el o

f cr

itic

al

loss

will

be

det

erm

ine

d o

nce

th

e m

ana

gem

ent

un

it h

as b

een

d

efin

ed

• R

isk

ran

kin

g is

b

ase

d o

n

• L

oss

of

mar

ine

BP

PH

• R

isk

ran

kin

g

assu

mes

re

gu

lar

mai

nte

nan

ce

dre

dg

ing

• A

lso

co

nsi

der

ed

p

ote

nti

al fl

ow

-on

ef

fect

s to

th

e fi

shin

g in

du

stry

e.

g. fi

sh n

urs

ery

and

bre

ed

ing

ar

eas

• R

efer

to

DS

DM

P f

or

com

ple

te li

st o

f m

itig

atio

n m

easu

res

• Im

ple

men

tati

on

of

mo

nit

ori

ng

p

rog

ram

s o

utl

ine

d in

th

e D

SD

MP

:

Wat

er q

ual

ity

mo

nit

ori

ng

•

loca

ted

in a

reas

of

key

sen

siti

ve

rece

pto

rs

Co

ral h

ealt

h m

on

ito

rin

g w

ith

in

• th

e Z

on

e o

f P

arti

al L

oss

, wit

h a

n

asso

ciat

ed

tier

ed

man

ag

emen

t re

spo

nse

Co

nti

ng

ency

co

ral h

ealt

h

• m

on

ito

rin

g w

ith

in t

he

Zo

ne

of

Infl

uen

ce u

nd

erta

ken

in t

he

even

t th

at w

ater

qu

alit

y tr

igg

ers

are

exce

ed

ed

, wit

h a

n

asso

ciat

ed

tier

ed

man

ag

emen

t re

spo

nse

Pre

-sp

awn

ing

and

po

st-

• sp

awn

ing

mo

nit

ori

ng

of

cora

l g

ravi

dit

y

Mo

nit

ori

ng

of

sea

gra

ss a

nd

•

oth

er B

PP

H w

ill b

e ca

rrie

d o

ut

pre

an

d p

ost

dre

dg

ing

o

per

atio

ns

and

du

rin

g su

mm

er

and

win

ter

to c

aptu

re

seas

on

alit

y.

41

Hig

h•

Lar

ge

volu

mes

o

f se

dim

ent

to

be

dre

dg

ed

• D

red

gin

g

cam

pai

gn

d

ura

tio

n is

3-4

ye

ars

• T

her

e is

lim

ite

d

BP

PH

in, a

nd

im

me

dia

tely

a

dja

cen

t to

, th

e d

red

ge

area

Rea

son

able

Exc

elle

nt

surv

ey

dat

a, m

od

ellin

g

con

du

cte

d

No

t A

pp

licab

leS

ect

ion

8.3

Ap

pen

dix

S

1

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dre

dg

ing

:

Dre

dg

e m

ater

ial

pla

cem

ent

off

sho

re

• D

ire

ct: L

oss

of

sub

-tid

al B

PP

H

du

e to

pla

cem

ent

of

dre

dg

e m

ater

ial

dir

ect

ly o

n s

ea

be

d.

• S

ele

ctio

n o

f d

red

ge

mat

eria

l p

lace

men

t si

tes

to r

ed

uce

ris

ks t

o

BP

PH

wh

ere

pra

ctic

able

61

Low

• T

her

e is

lim

ite

d

BP

PH

in, a

nd

im

me

dia

tely

a

dja

cen

t to

, th

e p

lace

men

t si

tes

• C

ora

ls c

lose

st t

o

pla

cem

ent

site

s m

on

ito

red

to

con

firm

no

a

dve

rse

imp

act

s fr

om

pla

cem

ent

act

ivit

ies

Rea

son

able

Exc

elle

nt

surv

ey

dat

a, m

od

ellin

g

con

du

cte

d

No

t A

pp

licab

leS

ect

ion

8.3



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dre

dg

ing

:

Dre

dg

e m

ater

ial

pla

cem

ent

on

sho

re

• In

dir

ect

: Im

pa

ct o

n

man

gro

ves

du

e to

g

rou

nd

wat

er

seep

ag

e an

d

exce

ed

ence

of

acc

epta

ble

leve

ls

du

e to

incr

ease

d

turb

idit

y an

d lig

ht

atte

nu

atio

n f

rom

to

de

can

t w

ater

d

isch

arg

e.

32

Hig

h•

Lev

el o

f cr

itic

al

loss

will

be

det

erm

ine

d o

nce

th

e m

ana

gem

ent

un

it h

as b

een

d

efin

ed

• R

isk

ran

kin

g is

b

ase

d o

n

• L

oss

of

mar

ine

BP

PH

.

• R

isk

ran

kin

g

assu

mes

re

gu

lar

mai

nte

nan

ce

dre

dg

ing

.

• A

lso

co

nsi

der

ed

p

ote

nti

al fl

ow

-on

ef

fect

s to

th

e fi

shin

g in

du

stry

e.

g. fi

sh n

urs

ery

and

bre

ed

ing

ar

eas.

• R

efer

to

DS

DM

P f

or

com

ple

te li

st o

f m

itig

atio

n m

easu

res

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

Cs

for

BP

PH

an

d m

ang

rove

s

• P

lace

men

t si

te lo

cati

on

sel

ect

ed

to

red

uce

ris

ks t

o B

PP

H w

her

e p

ract

icab

le

• D

isch

arg

e o

f d

eca

nt

wat

er f

rom

th

e o

nsh

ore

dre

dg

e m

ater

ial

pla

cem

ent

site

will

be

via

a co

ntr

olle

d p

oin

t w

hic

h w

ill in

clu

de

the

use

of

a w

eir

bo

x to

co

ntr

ol

wat

er h

eig

ht

• T

he

on

sho

re d

red

ge

mat

eria

l will

b

e co

nta

ine

d in

a b

un

de

d ar

ea t

o

red

uce

th

e ri

sk o

f an

un

con

fin

ed

re

leas

e o

f se

awat

er a

nd

sed

imen

ts

• A

dra

ina

ge

dit

ch (w

ith

su

mp

and

p

um

p sy

stem

) w

ill b

e in

stal

led

to

colle

ct a

nd

div

ert

seep

ag

e aw

ay

fro

m t

he

Ash

bu

rto

n R

iver

Del

ta

syst

em

• M

on

ito

rin

g o

f d

isch

arg

e w

ater

will

b

e u

nd

erta

ken

wit

h t

he

ob

ject

ive

of

com

ply

ing

wit

h t

he

max

imu

m

turb

idit

y lim

it o

f 2

50

mg

/L T

SS

• A

man

gro

ve m

on

ito

rin

g p

rog

ram

w

ill b

e d

esig

ne

d an

d im

ple

men

ted

to

det

ect

ch

ang

e to

man

gro

ve

hea

lth

an

d m

ang

rove

hab

itat

co

nd

itio

n. T

he

mo

nit

ori

ng

pro

gra

m

will

incl

ud

e:

Man

gro

ve t

ree

spe

cies

•

com

po

siti

on

an

d d

ensi

ty

Man

gro

ve t

ree

hea

lth

(can

op

y •

den

sity

an

d/o

r tr

ee

con

dit

ion

d

ata)

Gro

un

dw

ater

/so

ilwat

er s

alin

ity

• an

d w

ater

tab

le d

epth

Se

dim

ent

hei

gh

ts a

nd

gro

un

d

• le

vels

Hyd

roca

rbo

n a

nd

hea

vy m

etal

•

con

cen

trat

ion

in m

ang

rove

se

dim

ents

an

d se

lect

ed

m

ang

rove

-dep

end

ant

fau

na

Div

ersi

ty a

nd

abu

nd

ance

of

• m

ang

rove

-dep

end

ant

fau

na

Map

pin

g o

f m

ang

rove

hab

itat

•

dis

trib

uti

on

an

d co

astl

ine

mo

vem

ents

(Co

nt’

d)

42

Mediu

m•

Gro

un

dw

ater

ch

ara

cter

isti

cs

at m

ang

rove

lo

cati

on

s n

ot

pre

dic

ted

to

alte

r

• M

on

ito

rin

g o

f m

ang

rove

s to

co

nfi

rm n

o

ad

vers

e im

pa

cts

• L

arg

e b

uff

er

area

bet

we

en

the

on

sho

re

pla

cem

ent

site

an

d m

ang

rove

s

• S

um

p to

th

e so

uth

of

the

on

sho

re d

red

ge

mat

eria

l p

lace

men

t si

te

and

thu

s w

ell

away

fro

m t

he

man

gro

ves

to

the

wes

t o

f th

e p

lace

men

t si

te

Rea

son

able

Exc

elle

nt

surv

ey

dat

a, m

od

ellin

g

con

du

cte

d

No

t A

pp

licab

leS

ect

ion

8.3

Tab

le 12

.4

and

12.5

Ap

pen

dix

S

1



• R

efer

to

Ch

apte

r 9

: Ter

rest

rial

Ris

k A

sses

smen

t an

d M

ana

gem

ent

rela

tin

g to

gro

un

dw

ater

mo

nit

ori

ng

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Ves

sel

Mo

vem

ents

• To

xici

ty e

ffe

cts

of

anti

-fo

ula

nts

on

B

PP

H

• In

tro

du

ctio

n o

f m

arin

e p

ests

34

Low

• Fo

r th

is r

isk

asse

ssm

ent

the

focu

s w

as o

n t

he

intr

od

uct

ion

of

no

n-i

nd

igen

ou

s sp

eci

es. T

he

risk

as

sess

men

t w

as

bas

ed

on

in

tro

du

ced

sp

eci

es’

sub

seq

uen

t im

pa

ct o

n

mar

ine

BP

PH

an

d b

iod

iver

sity

.

• A

ll ve

ssel

s u

nd

er t

he

con

tro

l of

the

Pro

po

nen

t w

ill c

om

ply

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n o

n t

he

Co

ntr

ol o

f H

arm

ful A

nti

-fo

ulin

g

Sys

tem

s o

n S

hip

s as

mo

nit

ore

d b

y A

QIS

53

Low

• V

esse

ls w

ill

com

ply

wit

h t

he

req

uir

emen

ts o

f A

QIS

Hig

h

Exp

ert

inve

stig

atio

n

stu

die

s

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Ves

sel

Mo

vem

ents

• D

isch

arg

e o

f b

alla

st w

ater

• A

ll ve

ssel

s u

nd

er t

he

con

tro

l of

the

Pro

po

nen

t w

ill c

om

ply

wit

h A

QIS

b

alla

st w

ater

dis

char

ge

req

uir

emen

ts (

Au

stra

lian

Bal

last

W

ater

Man

ag

emen

t R

eq

uir

emen

ts

V4

20

08

)

53

Low

• V

esse

ls w

ill

com

ply

wit

h t

he

req

uir

emen

ts o

f A

QIS

Hig

h

Exp

ert

inve

stig

atio

n

stu

die

s

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

On

sho

re

Co

nst

ruct

ion

A

ctiv

itie

s

• D

ire

ct lo

ss o

f in

tert

idal

BP

PH

in

exce

ss o

f E

PA

G

uid

elin

es

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• N

ears

ho

re in

fras

tru

ctu

re lo

cati

on

se

lect

ed

to r

ed

uce

th

e ri

sk o

f d

istu

rban

ce t

o B

PP

H w

her

e p

ract

icab

le

• In

th

e ev

ent

of

sed

imen

t d

epo

siti

on

, ero

sio

n, d

ust

d

epo

siti

on

, or

gro

un

dw

ater

al

tera

tio

ns

in m

ang

rove

hab

itat

d

uri

ng

con

stru

ctio

n a

ctiv

ity

exce

ed

s b

ack

gro

un

d le

vels

im

ple

men

t m

itig

atio

n m

easu

res

as

defi

ne

d in

th

e D

SD

MP,

CP

MP

an

d

CE

MP

• If

cle

arin

g ex

cee

ds

per

mit

ted

area

o

f d

istu

rban

ce o

f m

ang

rove

h

abit

at:

Imm

ed

iate

ly c

ease

cle

arin

g in

•

man

gro

ve a

reas

Co

nfi

rm m

ang

rove

hab

itat

•

loss

es b

y su

rvey

an

d re

defi

ne

clea

rin

g b

ou

nd

arie

s

Inve

stig

ate

op

tio

ns

for

• re

hab

ilita

tio

n o

f m

ang

rove

h

abit

at

Iden

tify

th

e ca

use

of

exce

ssiv

e •

clea

rin

g, r

evie

w w

ork

p

roce

du

res

and

amen

d as

n

ece

ssar

y to

re

du

ce t

he

risk

of

furt

her

exc

ee

den

ce o

f p

erm

itte

d cl

eari

ng

• A

mo

nit

ori

ng

pro

gra

m w

ill b

e im

ple

men

ted

in o

rder

to

mo

nit

or

bo

th t

he

hea

lth

of

man

gro

ves

and

th

e ke

y fa

cto

rs m

ain

tain

ing

the

man

gro

ve h

abit

at

32

Hig

h•

Inte

rtid

al B

PP

H

in P

roje

ct a

rea

will

be

per

man

entl

y re

mo

ved

• E

xce

ed

ence

of

EP

A G

S N

o. 3

lo

ss g

uid

elin

es

Hig

h

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

8.3

Ap

pen

dix

S

1

Ap

pen

dix

T

1

Ap

pen

dix

U

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

On

sho

re

Co

nst

ruct

ion

A

ctiv

itie

s

• In

dir

ect

imp

act

s to

th

e A

shb

urt

on

R

iver

del

ta

man

gro

ve s

yste

m

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

Ch

apte

r 9

Se

ctio

n 9

.8 A

ir

Qu

alit

y

• N

ears

ho

re o

utf

all l

oca

tio

n s

ele

cte

d

to r

ed

uce

ris

ks t

o B

PP

H w

her

e p

ract

icab

le

• T

he

follo

win

g m

easu

res

will

be

use

d d

uri

ng

dri

llin

g a

ctiv

itie

s to

re

du

ce t

he

risk

of

a s

ub

sea

blo

wo

ut:

Pro

visi

on

of

nu

mer

ou

s p

rim

ary

• an

d se

con

dar

y b

arri

ers

(su

bse

a sa

fety

val

ves,

Pro

du

ctio

n

Mas

ter

Val

ve, S

wab

Val

ve, T

ree

Cu

p, P

rod

uct

ion

Sh

utd

ow

n

Val

ve, P

rod

uct

ion

Win

g V

alve

et

c)

Wel

l bo

re s

tab

ility

mo

del

ing

for

• re

serv

oir

an

d o

verb

urd

en

form

atio

ns

Sp

eci

fic

and

app

rove

d co

ntr

ols

•

for

wo

rk-o

ver

or

re-e

ntr

y o

per

atio

ns

Exc

lusi

on

zo

ne

aro

un

d

• w

ellh

ead

s w

ith

no

an

cho

rin

g in

ex

clu

sio

n a

rea

gaz

ette

d an

d o

n

nav

igat

ion

al c

har

ts

Man

ag

e d

isch

arg

es b

y ta

kin

g in

to

• a

cco

un

t th

e th

resh

old

lim

its

of

the

AN

ZE

CC

/AR

MC

AN

Z g

uid

elin

es

Mo

nit

ori

ng

to c

on

firm

ap

plic

able

•

wat

er q

ual

ity

targ

ets

at m

ixin

g

zon

e b

ou

nd

ary

62

Low

• It

is c

on

sid

ere

d

un

likel

y th

at a

b

low

ou

t w

ill

occ

ur

• O

n a

pp

licat

ion

of

mit

igat

ion

m

easu

res

for

wat

er q

ual

ity,

d

isch

arg

es

sho

uld

no

t im

pa

ct u

po

n

man

gro

ve

hab

itat

Rea

son

able

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Off

sho

re

Co

nst

ruct

ion

A

ctiv

itie

s

• D

ire

ct d

istu

rban

ce

to t

he

seab

ed

34

Low

• L

evel

of

crit

ical

lo

ss w

ill b

e d

eter

min

ed

on

ce

the

man

ag

emen

t u

nit

has

be

en

defi

ne

d

• N

ears

ho

re in

fras

tru

ctu

re lo

cati

on

se

lect

ed

to r

ed

uce

th

e ri

sk o

f d

istu

rban

ce t

o B

PP

H w

her

e p

ract

icab

le

61

Low

• O

ffsh

ore

in

fras

tru

ctu

re

loca

tio

n d

oes

n

ot

sup

po

rt

BP

PH

• Tr

un

klin

e ro

ute

lo

cati

on

do

es

no

t o

verl

ie

sig

nifi

can

t ar

eas

of

BP

PH

(a s

mal

l ar

ea o

f se

ag

rass

w

ill b

e te

mp

ora

rily

im

pa

cte

d)

• O

ffsh

ore

an

d

nea

rsh

ore

in

fras

tru

ctu

re

loca

tio

n

con

tain

s lim

ite

d

BP

PH

Rea

son

able

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

8.3



Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Nea

r-sh

ore

C

on

stru

ctio

n

Act

ivit

ies:

Co

nst

ruct

ion

of

PL

F an

d ro

ck

pla

cem

ent

for

MO

F b

reak

wat

er

wal

ls

• In

dir

ect

d

istu

rban

ce t

o t

he

seab

ed

fro

m

incr

ease

d

turb

idit

y,

sed

imen

tati

on

an

d

ligh

t at

ten

uat

ion

le

ad

ing

to lo

ss o

f B

PP

H in

ex

cee

den

ce o

f a

ccep

tab

le le

vels

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• M

OF

and

PL

F lo

cati

on

sel

ect

ed

to

red

uce

th

e ri

sk o

f lo

ss o

f B

PP

H

wh

ere

pra

ctic

able

• U

se g

rad

ed

rock

mat

eria

l wit

h lo

w

fin

es c

on

ten

t

• M

OF

and

PL

F m

itig

atio

n c

ove

red

u

nd

er t

he

CE

MP

61

Low

• N

ears

ho

re

infr

astr

uct

ure

lo

cati

on

co

nta

ins

limit

ed

B

PP

H

Rea

son

able

Su

rvey

dat

a av

aila

ble

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Nea

r-sh

ore

C

on

stru

ctio

n

Act

ivit

ies

Tru

nkl

ine

tren

chin

g an

d

tru

nkl

ine

stab

ilisa

tio

n

• In

dir

ect

d

istu

rban

ce t

o t

he

seab

ed

fro

m

incr

ease

d

turb

idit

y,

sed

imen

tati

on

an

d

ligh

t at

ten

uat

ion

le

ad

ing

to lo

ss o

f B

PP

H in

ex

cee

den

ce o

f a

ccep

tab

le le

vels

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• Tr

un

klin

e ro

ute

loca

tio

n s

ele

cte

d

to r

ed

uce

ris

ks t

o B

PP

H w

her

e p

ract

icab

le

• U

se e

ng

ine

ere

d ro

ck m

ater

ial w

ith

lo

w fi

nes

co

nte

nt

42

Mediu

m•

Imp

act

s to

BP

PH

h

ave

be

en

mo

del

led

co

nse

rvat

ivel

y d

ue

to

un

cert

ain

ty

• B

PP

H w

ill b

e te

mp

ora

ry

imp

act

ed

du

e to

tr

un

klin

e co

nst

ruct

ion

• A

shb

urt

on

m

ang

rove

h

abit

at is

of

hig

h

con

serv

atio

n

stat

us

Rea

son

able

Su

rvey

dat

a av

aila

ble

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.3



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Nea

r-sh

ore

C

on

stru

ctio

n

Act

ivit

ies

Tru

nkl

ine

sho

re

cro

ssin

g b

y tr

ench

ing

• D

istu

rban

ce o

f m

ang

rove

hab

itat

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• M

ain

tain

tid

al fl

ow

s to

eas

tern

en

d

of

lag

oo

n b

y u

se o

f te

mp

ora

ry g

ap

in s

and

spit

.

• C

on

tain

se

dim

ent

wit

hin

ro

ck

gro

yne

stru

ctu

res

to r

ed

uce

th

e ri

sk o

f p

ote

nti

al s

ed

imen

t sm

oth

erin

g im

pa

cts

on

man

gro

ves

• D

istu

rban

ce a

rea

to b

e la

nd

scap

ed

w

ith

th

e o

bje

ctiv

e o

f re

-in

stat

ing

to

form

er t

op

og

rap

hy

• U

se e

ng

ine

ere

d ro

ck m

ater

ial w

ith

re

du

ced

fin

es c

on

ten

t

• A

DS

DM

P s

pe

cifi

c to

tru

nkl

ine

tren

chin

g a

ctiv

itie

s w

ill b

e d

evel

op

ed

41

Hig

h•

Th

e fi

rst

tren

chin

g

act

ivit

y is

p

red

icte

d h

ave

smal

l im

pa

cts

on

ju

ven

ile

man

gro

ves

and

h

as a

ris

k ra

nki

ng

of

‘Me

diu

m’

• Tr

ench

ing

will

re

sult

in

dis

turb

ance

of

po

ten

tial

m

ang

rove

h

abit

at

• Tr

ench

ing

will

te

mp

ora

rily

b

lock

wat

er

mo

vem

ent

to

som

e ar

eas

of

the

Ash

bu

rto

n

Eas

t L

ag

oo

n

• R

epea

ted

tr

ench

ing

is

pre

dic

ted

to

dam

ag

e o

lder

an

d m

ore

es

tab

lish

ed

m

ang

rove

s,

ther

efo

re t

he

risk

ran

kin

g is

‘H

igh

’

• A

shb

urt

on

m

ang

rove

h

abit

at is

of

hig

h

con

serv

atio

n

stat

us

• M

icro

tun

nel

ling

is

th

e p

refe

rre

d

op

tio

n (

see

bel

ow

)

Rea

son

able

Su

rvey

dat

a av

aila

ble

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Nea

r-sh

ore

C

on

stru

ctio

n

Act

ivit

ies

Tru

nkl

ine

sho

re

cro

ssin

g b

y m

icro

tun

nel

ling

• N

o im

pa

ct

pre

dic

ted

• N

o m

ana

gem

ent

or

mit

igat

ion

m

easu

res

req

uir

ed

62

Low

• M

icro

tun

nel

ling

is

no

t an

tici

pat

ed

to

cau

se im

pa

cts

to

BP

PH

, in

clu

din

g

man

gro

ve

hab

itat

• T

he

entr

y an

d

exit

po

ints

of

the

mic

rotu

nn

ellin

g

hav

e a

low

BP

PH

ab

un

dan

ce

Rea

son

able

Su

rvey

dat

a av

aila

ble

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.3



Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dis

char

ge

and

W

aste

fro

m

Off

sho

re

Co

nst

ruct

ion

• Tu

rbid

ity

and

se

dim

ent

chan

ges

• To

xici

ty t

o b

iota

• P

ote

nti

al

con

tam

inat

ion

w

ith

TP

H a

nd

ME

G.

• In

crea

sed

tu

rbid

ity,

sm

oth

erin

g,

red

uce

d d

isso

lve

d

oxy

gen

(D

O).

• B

ioa

ccu

mu

lati

on

o

f ch

emic

als

and

tr

ace

met

als

in

spe

cies

/ f

oo

d

chai

n.

• E

xce

ed

ence

of

Co

mm

on

wea

lth

R

eg

ula

tio

ns

on

T

PH

.

54

Ver

y

Low

• T

his

asp

ect

do

es

no

t in

clu

de

spill

s o

r a

ccid

enta

l re

leas

e o

f m

ater

ial

• T

he

Pro

po

nen

t w

ill d

eter

min

e P

NE

C f

or

PW

dis

char

ge

• C

om

plia

nce

wit

h O

ffsh

ore

P

etro

leu

m a

nd

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t) R

eg

ula

tio

ns

20

09

• Tr

eatm

ent

in c

om

plia

nce

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n f

or

the

Pre

ven

tio

n o

f P

ollu

tio

n f

rom

Sh

ips

(MA

RP

OL

73

/78

, An

nex

IV)

(ref

)

• Tr

eatm

ent

of

PW

wit

h t

he

ob

ject

ive

of

me

etin

g th

e re

qu

irem

ents

of

the

Off

sho

re P

etro

leu

m a

nd

G

reen

ho

use

Gas

Sto

rag

e (E

nvi

ron

men

t) R

eg

ula

tio

ns

20

09

as

th

ey a

pp

ly f

or

tim

e to

tim

e

• C

on

tro

lled

rele

ase

of

hyd

rote

st

wat

er t

o r

ed

uce

po

ten

tial

fo

r to

xici

ty im

pa

cts

• M

on

ito

r P

W c

on

cen

trat

ion

s p

rio

r to

d

isch

arg

e

62

Low

• O

ffsh

ore

in

fras

tru

ctu

re

loca

tio

ns

con

tain

lim

ite

d

BP

PH

Hig

h

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Co

nst

ruct

ion

Dis

char

ges

fr

om

On

sho

re

Co

nst

ruct

ion

• In

crea

sed

met

als

and

oth

er

con

tam

inan

ts.

• In

crea

sed

tu

rbid

ity,

sal

init

y,

nu

trie

nts

an

d al

gal

b

loo

ms

lea

din

g to

lo

ss o

r d

ama

ge

to

BP

PH

in

exce

ed

ence

of

acc

epta

ble

leve

ls.

54

Ver

y

Low

• T

his

asp

ect

do

es

no

t in

clu

de

spill

s o

r a

ccid

enta

l re

leas

e o

f m

ater

ial

• N

ears

ho

re o

utf

all l

oca

tio

n s

ele

cte

d

to r

ed

uce

ris

ks t

o B

PP

H w

her

e p

ract

icab

le

• M

ana

ge

dis

char

ges

by

taki

ng

into

a

cco

un

t th

e th

resh

old

lim

its

of

the

AN

ZE

CC

/AR

MC

AN

Z g

uid

elin

es

• M

on

ito

rin

g to

co

nfi

rm a

pp

licab

le

wat

er q

ual

ity

targ

ets

at m

ixin

g

zon

e b

ou

nd

ary

61

Low

• O

ffsh

ore

in

fras

tru

ctu

re

loca

tio

ns

con

tain

lim

ite

d

BP

PH

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

sD

isch

arg

es

fro

m O

nsh

ore

O

per

atio

ns:

Nea

rsh

ore

d

isch

arg

e o

f w

aste

wat

er,

pro

cess

w

aste

wat

er,

con

tact

st

orm

wat

er a

nd

R

O b

rin

e.

• In

crea

sed

met

als

and

oth

er

con

tam

inan

ts.

• In

crea

sed

tu

rbid

ity,

sal

init

y,

nu

trie

nts

an

d al

gal

b

loo

ms

lea

din

g to

lo

ss o

r d

ama

ge

to

BP

PH

in

exce

ed

ence

of

acc

epta

ble

leve

ls.

• To

xici

ty t

o B

PP

H

54

Ver

y

Low

• T

his

asp

ect

do

es

no

t in

clu

de

spill

s o

r a

ccid

enta

l re

leas

e o

f m

ater

ial

• R

efer

to

Ch

apte

r 9

Tab

le 9

.14

fo

r su

rfa

ce w

ater

man

ag

emen

t an

d

mit

igat

ion

mea

sure

s

• E

nd

of

pip

e d

iffu

ser

loca

ted

at t

he

PL

F

• M

ixin

g zo

ne

loca

tio

n s

ele

cte

d to

re

du

ce r

isks

to

BP

PH

wh

ere

pra

ctic

able

• M

ana

ge

dis

char

ges

by

taki

ng

into

a

cco

un

t th

e th

resh

old

lim

its

of

the

AN

ZE

CC

/AR

MC

AN

Z g

uid

elin

es

• M

ixin

g zo

ne

bo

un

dar

ies

to b

e es

tab

lish

ed

and

mo

nit

ori

ng

to

ach

ieve

ap

plic

able

wat

er q

ual

ity

targ

ets

at m

ixin

g zo

ne

bo

un

dar

y

61

Low

• N

o B

PP

H a

t th

e p

oin

t o

f d

isch

arg

e an

d

wit

hin

th

e m

ixin

g

bo

un

dar

y

Rea

son

able

Mo

del

ling

co

nd

uct

ed

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.3



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

sD

isch

arg

es

fro

m O

nsh

ore

O

per

atio

ns:

Dis

char

ge

of

PW

fro

m t

he

LN

G p

lan

t

• To

xici

ty t

o B

PP

H5

4V

ery

L

ow

• T

his

asp

ect

do

es

no

t in

clu

de

spill

s o

r a

ccid

enta

l re

leas

e o

f m

ater

ial

• N

ears

ho

re o

utf

all l

oca

tio

n s

ele

cte

d

to r

ed

uce

ris

ks t

o B

PP

H w

her

e p

ract

icab

le

• S

ele

ctio

n o

f o

utf

all l

oca

tio

n a

nd

d

iffu

ser

des

ign

fo

r a

de

qu

ate

dilu

tio

n a

nd

dis

per

sio

n o

f P

W

• T

he

Pro

po

nen

t w

ill d

eter

min

e P

NE

C f

or

PW

dis

char

ge.

• Tr

eatm

ent

of

PW

wit

h t

he

ob

ject

ive

of

me

etin

g th

e re

qu

irem

ents

of

the

Off

sho

re P

etro

leu

m a

nd

G

reen

ho

use

Gas

Sto

rag

e (E

nvi

ron

men

t) R

eg

ula

tio

ns

20

09

as

th

ey a

pp

ly f

or

tim

e to

tim

e

• M

on

ito

r P

W c

on

cen

trat

ion

s p

rio

r to

d

isch

arg

e

• C

on

firm

ad

eq

ua

cy o

f d

iffu

ser

des

ign

an

d si

ze o

f m

ixin

g zo

ne

62

Low

• L

ow

ab

un

dan

ce

of

BP

PH

at

the

po

int

of

dis

char

ge

and

w

ith

in t

he

mix

ing

b

ou

nd

ary

• D

isch

arg

es f

rom

o

nsh

ore

o

per

atio

ns

will

b

e m

ana

ge

d to

co

mp

ly w

ith

re

leva

nt

Re

gu

lati

on

s (O

ffsh

ore

P

etro

leu

m a

nd

G

reen

ho

use

Gas

S

tora

ge

(En

viro

nm

ent)

R

eg

ula

tio

ns

20

09

)

Rea

son

able

Mo

del

ling

co

nd

uct

ed

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

sD

isch

arg

e an

d

Was

te f

rom

O

ffsh

ore

O

per

atio

ns

• To

xici

ty t

o b

iota

.

• P

ote

nti

al

con

tam

inat

ion

w

ith

TP

H a

nd

ME

G

• In

crea

sed

tu

rbid

ity,

sm

oth

erin

g,

red

uce

d D

O

• B

ioa

ccu

mu

lati

on

o

f ch

emic

als

and

tr

ace

met

als

in

spe

cies

/ f

oo

d

chai

n

• E

xce

ed

ence

of

Co

mm

on

wea

lth

R

eg

ula

tio

ns

on

T

PH

54

Ver

y

Low

• T

his

asp

ect

do

es

no

t in

clu

de

spill

s o

r a

ccid

enta

l re

leas

e o

f m

ater

ial

• T

he

Pro

po

nen

t w

ill d

eter

min

e P

NE

C f

or

PW

dis

char

ge

• C

om

plia

nce

wit

h O

ffsh

ore

P

etro

leu

m a

nd

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t) R

eg

ula

tio

ns

20

09

• Tr

eatm

ent

in c

om

plia

nce

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n f

or

the

Pre

ven

tio

n o

f P

ollu

tio

n f

rom

Sh

ips

(MA

RP

OL

73

/78

, An

nex

IV)

(ref

)

• C

on

tro

lled

rele

ase

of

hyd

rote

st

wat

er t

o r

ed

uce

po

ten

tial

fo

r to

xici

ty im

pa

cts

• M

on

ito

r P

W c

on

cen

trat

ion

s p

rio

r to

d

isch

arg

e

62

Low

• O

ffsh

ore

in

fras

tru

ctu

re

loca

tio

ns

con

tain

lim

ite

d

BP

PH

• D

isch

arg

es a

nd

w

aste

fro

m

off

sho

re

op

erat

ion

s w

ill

be

man

ag

ed

to

com

ply

wit

h

rele

van

t C

on

ven

tio

ns

and

R

eg

ula

tio

ns

(Off

sho

re

Pet

role

um

an

d

Gre

enh

ou

se G

as

Sto

rag

e (E

nvi

ron

men

t)

Re

gu

lati

on

s 2

00

9, M

AR

PO

L)

Hig

h

Exc

elle

nt

surv

ey

dat

a an

d

mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

sV

esse

l M

ove

men

ts•

Toxi

city

eff

ect

s o

f an

ti-f

ou

lan

ts o

n

BP

PH

• In

tro

du

ctio

n o

f m

arin

e p

ests

34

Low

• Fo

r th

is r

isk

asse

ssm

ent

the

focu

s w

as o

n t

he

intr

od

uct

ion

of

no

n-i

nd

igen

ou

s sp

eci

es

• T

he

risk

as

sess

men

t w

as

bas

ed

on

in

tro

du

ced

sp

eci

es’

sub

seq

uen

t im

pa

ct o

n

mar

ine

BP

PH

an

d b

iod

iver

sity

• A

ll ve

ssel

s u

nd

er t

he

con

tro

l of

the

Pro

po

nen

t w

ill c

om

ply

wit

h t

he

Inte

rnat

ion

al C

on

ven

tio

n o

n t

he

Co

ntr

ol o

f H

arm

ful A

nti

-fo

ulin

g

Sys

tem

s o

n S

hip

s as

mo

nit

ore

d b

y A

QIS

53

Low

• V

esse

ls w

ill

com

ply

wit

h t

he

req

uir

emen

ts o

f A

QIS

Hig

h

Exp

ert

inve

stig

atio

n

stu

die

s

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

s•

Dis

char

ge

of

bal

last

wat

er•

All

vess

els

un

der

th

e co

ntr

ol o

f th

e P

rop

on

ent

will

co

mp

ly w

ith

AQ

IS

bal

last

wat

er d

isch

arg

e re

qu

irem

ents

(A

ust

ralia

n B

alla

st

Wat

er M

ana

gem

ent

Re

qu

irem

ents

V

4 2

00

8)

53

Low

• V

esse

ls w

ill

com

ply

wit

h t

he

req

uir

emen

ts o

f A

QIS

Hig

h

Exp

ert

inve

stig

atio

n

stu

die

s

No

t A

pp

licab

leS

ect

ion

8.3



Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

sL

eaks

an

d S

pill

s•

Mo

rtal

ity

of

BP

PH

in

Ho

ole

y C

reek

re

sult

ing

fro

m le

ak

or

spill

fro

m L

NG

p

roce

ssin

g p

lan

t

24

Mediu

m•

Th

is r

isk

asse

ssm

ent

assu

mes

a

wo

rst-

case

m

ajo

r sp

ill o

f co

nd

ensa

te,

po

ten

tial

ly

imp

act

ing

on

re

gio

nal

ly

sig

nifi

can

t m

ang

rove

h

abit

at

• Im

ple

men

tati

on

, wh

ere

pra

ctic

able

, of

rele

van

t A

ust

ralia

S

tan

dar

ds

and

Co

des

in t

he

init

ial

des

ign

inte

gri

ty, p

roce

ss a

nd

uti

lity

eq

uip

men

t, m

ater

ials

han

dlin

g an

d

op

erat

ing

and

mai

nte

nan

ce

pro

ced

ure

s w

ith

th

e o

bje

ctiv

e o

f re

du

cin

g sp

ills

• A

DM

P a

pp

rove

d M

OP

P w

ill b

e im

ple

men

ted

and

rele

van

t p

erso

nn

el w

ill b

e tr

ain

ed

in

acc

ord

ance

wit

h t

he

MO

PP

• C

lean

up

and

rem

ed

iati

on

met

ho

ds

will

be

imp

lem

ente

d in

th

e ev

ent

of

a sp

ill

• M

on

ito

rin

g as

fo

r 1.

4 P

lace

men

t o

f d

red

ge

mat

eria

l on

sho

re

45

Ver

y

Low

• P

rob

abili

ty o

f la

rge

leak

s o

r sp

ills

fro

m

on

sho

re

infr

astr

uct

ure

is

low

• T

he

abili

ty t

o

rap

idly

co

nta

in a

le

ak o

r sp

ill f

rom

o

nsh

ore

in

fras

tru

ctu

re

• C

on

den

sate

is

toxi

c to

m

ang

rove

se

ed

ling

s, b

ut

evap

ora

tes

mo

re

rap

idly

th

an

cru

de

oil

• D

evel

op

men

t o

f th

e M

OP

P

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

8.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

sL

eaks

an

d

Sp

ills:

Nea

r-sh

ore

sp

ills

• M

ort

alit

y o

f B

PP

H

du

e to

ref

uel

ing

w

ork

bo

ats

at t

he

MO

F, c

on

den

sate

sp

ill d

uri

ng

loa

din

g

at P

LF

• A

s fo

r o

nsh

ore

sp

ills

ente

rin

g th

e m

arin

e en

viro

nm

ent,

ab

ove

15

Mediu

m•

Pro

bab

ility

of

larg

e le

aks

or

spill

s fr

om

n

ears

ho

re

infr

astr

uct

ure

is

low

• T

he

abili

ty t

o

rap

idly

co

nta

in a

le

ak o

r sp

ill f

rom

n

ears

ho

re

infr

astr

uct

ure

• C

on

den

sate

is

toxi

c to

m

ang

rove

se

ed

ling

s, b

ut

evap

ora

tes

mo

re

rap

idly

th

an

cru

de

oil

• D

evel

op

men

t an

d

imp

lem

enta

tio

n

of

the

MO

PP

• A

shb

urt

on

m

ang

rove

h

abit

at is

of

hig

h

con

serv

atio

n

stat

us

Se

ctio

n 8

.3



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Op

erat

ion

sL

eaks

an

d

Sp

ills:

Off

sho

re s

pill

s

• L

oss

of

wel

l co

ntr

ol r

esu

ltin

g in

lo

ss o

f B

PP

H

24

Mediu

m•

Th

is r

isk

asse

ssm

ent

assu

mes

a

wo

rst-

case

m

ajo

r sp

ill o

f co

nd

ensa

te,

po

ten

tial

ly

imp

act

ing

on

re

gio

nal

ly

sig

nifi

can

t m

ang

rove

h

abit

at

• A

s fo

r o

nsh

ore

sp

ills

ente

rin

g th

e m

arin

e en

viro

nm

ent

and

• T

he

follo

win

g m

easu

res

will

be

use

d d

uri

ng

dri

llin

g a

ctiv

itie

s to

re

du

ce t

he

risk

of

a s

ub

sea

blo

wo

ut:

Pro

visi

on

of

nu

mer

ou

s p

rim

ary

• an

d se

con

dar

y b

arri

ers

(su

bse

a sa

fety

val

ves,

Pro

du

ctio

n

Mas

ter

Val

ve, S

wab

Val

ve, T

ree

Cu

p, P

rod

uct

ion

Sh

utd

ow

n

Val

ve, P

rod

uct

ion

Win

g V

alve

et

c)

Wel

l bo

re s

tab

ility

mo

del

ing

for

• re

serv

oir

an

d o

verb

urd

en

form

atio

ns

Sp

eci

fic

and

app

rove

d co

ntr

ols

•

for

wo

rk-o

ver

or

re-e

ntr

y o

per

atio

ns

Exc

lusi

on

zo

ne

aro

un

d

• w

ellh

ead

s w

ith

no

an

cho

rin

g in

ex

clu

sio

n a

rea

gaz

ette

d an

d o

n

nav

igat

ion

al c

har

ts

25

Low

• P

rob

abili

ty o

f la

rge

leak

s o

r sp

ills

fro

m

off

sho

re

infr

astr

uct

ure

is

low

• D

evel

op

men

t an

d

imp

lem

enta

tio

n

of

the

MO

PP

• T

he

larg

e d

ista

nce

of

the

pla

tfo

rm f

rom

in

tert

idal

BP

PH

Se

ctio

n 8

.3

Ben

thic

P

rim

ary

P

rodu

cer

Habit

at

(BP

PH

)

Ad

dit

ive

Eff

ect

s•

Th

e su

m o

f al

l p

ote

nti

al

Pro

ject

-at

trib

uta

ble

im

pa

cts

fro

m a

ll P

roje

ct p

has

es

and

asp

ect

s

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

ee

abo

ve f

or

pro

po

sed

m

ana

gem

ent/

mit

igat

ion

mea

sure

s3

2H

igh

• T

he

risk

ran

kin

g

of

the

ad

dit

ive

effe

cts

of

all

Pro

ject

asp

ect

s is

det

erm

ine

d b

y th

e h

igh

est

risk

ra

nki

ng

of

any

ind

ivid

ual

asp

ect

Low

No

t A

pp

licab

leS

ect

ion

8.3

Mari

ne

Fau

na

Op

erat

ion

sP

hys

ical

P

rese

nce

of

Mar

ine

Infr

astr

uct

ure

• C

han

ge

to

beh

avio

ur

of

pro

tect

ed

mar

ine

fau

na

(in

clu

din

g

seab

ird

s), i

mp

act

s o

n m

igra

tory

p

atte

rns,

nes

tin

g

and

fee

din

g, a

nd

lo

ss a

nd

d

istu

rban

ce t

o

hab

itat

s

• C

han

ge

in t

he

abu

nd

ance

an

d

div

ersi

ty o

f p

rote

cte

d m

arin

e fa

un

a fr

om

th

e cr

eati

on

of

arti

fici

al h

abit

at

42

Mediu

m•

Ris

k as

sess

men

t d

oes

no

t re

late

to

sh

ipp

ing

, ve

ssel

s o

r co

nst

ruct

ion

• N

ears

ho

re in

fras

tru

ctu

re lo

cati

on

se

lect

ed

to r

ed

uce

ris

ks t

o h

abit

at

crit

ical

(n

esti

ng

, fe

ed

ing

and

ca

lvin

g ar

eas)

fo

r m

arin

e fa

un

a su

ch a

s H

um

pb

ack

Wh

ales

, D

ug

on

gs

and

turt

les

• A

eria

l, b

oat

an

d la

nd

bas

ed

surv

eys

to id

enti

fy a

nd

map

cri

tica

l hab

itat

fo

r m

arin

e m

amm

als

and

turt

les

pri

or

to c

on

stru

ctio

n

54

Ver

y

Low

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

in

the

vici

nit

y o

f n

ears

ho

re

infr

astr

uct

ure

• N

ears

ho

re

infr

astr

uct

ure

lo

cati

on

re

pre

sen

ts a

ve

ry s

mal

l am

ou

nt

of

avai

lab

le h

abit

at

Rea

son

able

to

Hig

h

Sh

ort

-ter

m a

nd

so

me

lon

g-t

erm

m

on

ito

rin

g d

ata

avai

lab

le

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Mari

ne

Fau

na

Op

erat

ion

sP

hys

ical

P

rese

nce

of

Mar

ine

Infr

astr

uct

ure

• C

han

ges

in

abu

nd

ance

fo

r so

me

fish

tax

a

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• N

ears

ho

re in

fras

tru

ctu

re lo

cati

on

se

lect

ed

to r

ed

uce

like

liho

od

of

fish

a

gg

reg

atin

g in

hab

itat

cri

tica

l (n

esti

ng

, fe

ed

ing

and

calv

ing

ar

eas)

fo

r m

arin

e fa

un

a

63

Ver

y

Low

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

in

the

vici

nit

y o

f n

ears

ho

re

infr

astr

uct

ure

• N

ears

ho

re

infr

astr

uct

ure

lo

cati

on

re

pre

sen

ts a

ve

ry s

mal

l am

ou

nt

of

avai

lab

le h

abit

at

Low

Un

cert

ain

ties

su

rro

un

din

g

po

pu

lati

on

re

spo

nse

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Co

nst

ruct

ion

Dre

dg

ing

• E

ntr

ain

men

t o

f m

arin

e fa

un

a (p

arti

cula

rly

juve

nile

tu

rtle

s)

rest

ing

on

th

e se

abe

d in

th

e d

red

ge

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

DS

DM

P f

or

com

ple

te li

st o

f m

itig

atio

n m

easu

res

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• P

rio

r to

co

mm

ence

men

t o

f d

red

gin

g an

d d

red

ge

mat

eria

l m

ana

gem

ent

act

ivit

ies

sele

cte

d

crew

will

re

ceiv

e tr

ain

ing

, wh

ich

w

ill in

clu

de

det

ails

on

pro

ced

ure

s in

th

e ev

ent

turt

le s

igh

tin

g, i

nju

ry

and

/or

dea

th

• W

hen

op

erat

ing

wit

h le

ss t

han

five

m

etre

s u

nd

er k

eel

cle

aran

ce, t

he

dre

dg

e w

ill in

itia

lly m

ove

slo

wly

th

rou

gh

th

e ar

ea b

efo

re

com

men

cin

g d

red

gin

g so

th

at t

he

no

ise

and

vib

rati

on

dis

turb

mar

ine

turt

les

in t

he

vici

nit

y an

d

enco

ura

ge

them

to

leav

e. T

his

will

o

nly

be

app

lied

on

dre

dg

ing

in n

ew

area

s an

d n

ot

on

ce t

he

wo

rk a

rea

has

be

en e

stab

lish

ed

• D

red

ge

pu

mp

s w

ill b

e st

op

pe

d as

so

on

as

pra

ctic

able

aft

er

com

ple

tio

n o

f d

red

gin

g an

d w

her

e re

aso

nab

ly p

ract

icab

le t

he

dra

g

hea

d w

ill r

emai

n w

ith

in f

ou

r m

etre

s o

f th

e se

abe

d u

nti

l th

e d

red

ge

pu

mp

is s

top

pe

d

• M

ana

gem

ent

of

ceta

cean

in

tera

ctio

ns

will

be

in a

cco

rdan

ce

wit

h t

he

req

uir

emen

ts s

pe

cifi

ed

u

nd

er t

he

Au

stra

lian

Nat

ion

al

Gu

idel

ines

fo

r W

hal

e an

d D

olp

hin

W

atch

ing

(20

05

)

• R

elea

se o

f h

ealt

hy

entr

ain

ed

tu

rtle

s b

ack

to

th

e m

arin

e en

viro

nm

ent

and

con

tact

th

e D

EC

if

an

inju

red

turt

le is

co

llect

ed

afte

r b

ein

g en

trai

ne

d

• In

th

e ev

ent

of

turt

le m

ort

alit

y in

cid

ent,

as

a re

sult

of

entr

ain

men

t d

uri

ng

dre

dg

ing

, rev

isio

n o

f ex

isti

ng

man

ag

emen

t m

easu

res

will

be

inve

stig

ate

d to

asc

erta

in

wh

eth

er a

dd

itio

nal

mea

sure

s m

ay

be

pu

t in

pla

ce t

o r

ed

uce

th

e p

ote

nti

al f

or

such

inci

den

ts t

o

occ

ur

in t

he

futu

re

(Co

nt’

d)

43

Low

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

in

nea

r sh

ore

w

ater

s w

her

e d

red

gin

g w

ill

occ

ur

• L

ow

en

trai

nm

ent

rate

du

rin

g

dre

dg

ing

ca

mp

aig

ns

• A

do

pti

on

of

mit

igat

ion

m

easu

res

such

as

mar

ine

fau

na

ob

serv

ers

and

ex

clu

sio

n z

on

es

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

S

1



• H

um

pb

ack

s an

d D

ug

on

g

ob

serv

atio

ns

thro

ug

ho

ut

the

wo

rks

as p

art

of

the

mar

ine

mam

mal

m

ana

gem

ent

pro

ced

ure

s

• A

ny

inci

den

t in

volv

ing

the

inju

ry o

r m

ort

alit

y o

f tu

rtle

s w

ill b

e re

po

rte

d

to t

he

DE

C a

nd

DE

WH

A w

ith

in 4

8

ho

urs

of

the

inci

den

t o

ccu

rrin

g

Mari

ne

Fau

na

Co

nst

ruct

ion

Dre

dg

ing

• L

oss

of

or

dis

turb

ance

to

cr

itic

al h

abit

at

asso

ciat

ed

wit

h

pro

tect

ed

mar

ine

fau

na

• P

ote

nti

al t

o

dir

ect

ly im

pa

ct

mar

ine

fau

na

• D

istu

rban

ce a

nd

av

oid

ance

of

area

b

y p

rote

cte

d

mar

ine

fau

na

• H

eig

hte

ne

d

com

mu

nit

y co

nce

rn

• Im

pa

cts

on

loca

l to

uri

sm o

per

ato

rs

33

Mediu

m•

Fora

gin

g h

abit

at

for

turt

les

assu

me

d to

be

mo

st c

riti

cal

hab

itat

at

risk

• A

sses

sed

the

likel

iho

od

of

loss

o

r d

istu

rban

ce

to c

riti

cal h

abit

at

imp

ort

ant

to

pro

tect

ed

m

arin

e fa

un

a

• R

efer

to

DS

DM

P f

or

com

ple

te li

st o

f m

itig

atio

n m

easu

res

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

BP

PH

• S

ele

ctio

n o

f n

avig

atio

n c

han

nel

, M

OF

and

pla

cem

ent

site

s to

re

du

ce

risk

s to

hab

itat

cri

tica

l (n

esti

ng

, fe

ed

ing

and

calv

ing

area

s) f

or

mar

ine

fau

na

such

as

Hu

mp

ba

cks,

D

ug

on

gs

and

turt

les

• D

red

gin

g an

d m

ater

ial p

lace

men

t w

ill b

e co

nd

uct

ed

du

rin

g

favo

ura

ble

wea

ther

, tid

e an

d

curr

ent

con

dit

ion

s, a

s fa

r as

re

aso

nab

ly p

ract

icab

le, t

o r

ed

uce

th

e ri

sk o

f im

pa

ct t

o m

arin

e fa

un

a w

hile

in c

lose

pro

xim

ity

to s

ensi

tive

ar

eas

54

Ver

y

Low

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

in

nea

r sh

ore

w

ater

s

• N

o f

ora

gin

g

hab

itat

s (e

.g.

sea

gra

ss b

ed

s)

for

turt

les

and

D

ug

on

gs

will

be

per

man

entl

y d

ama

ge

d as

a

resu

lt o

f d

red

gin

g

• C

riti

cal h

abit

at

for

mar

ine

mam

mal

s an

d

turt

les

do

es n

ot

occ

ur

in t

he

nea

rsh

ore

in

fras

tru

ctu

re

loca

tio

n

• C

on

stru

ctio

n is

a

tem

po

rary

a

ctiv

ity

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.5

Ap

pen

dix

S

1

Mari

ne

Fau

na

Co

nst

ruct

ion

Dre

dg

ing

• L

oss

of

or

dis

turb

ance

to

d

esig

nat

ed

n

ears

ho

re n

urs

ery

hab

itat

fo

r p

raw

ns

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

s ab

ove

42

Mediu

m•

Dis

turb

ance

to

p

raw

n n

urs

ery

hab

itat

, su

ch a

s se

ag

rass

be

ds,

is

pre

dic

ted

to b

e sh

ort

ter

m;

reco

very

is

pre

dic

ted

to

occ

ur

afte

r ce

ssat

ion

of

dre

dg

ing

• O

ther

imp

ort

ant

nu

rser

y h

abit

at,

such

as

lag

oo

ns

and

cre

eks,

will

n

ot

be

dir

ect

ly

imp

act

ed

• C

on

stru

ctio

n is

a

tem

po

rary

a

ctiv

ity

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Co

nst

ruct

ion

Co

nst

ruct

ion

A

ctiv

itie

s (m

arin

e):

Co

nst

ruct

ion

of

PL

F an

d

tru

nkl

ines

, ro

ck

pla

cem

ent

and

an

cho

r p

lace

men

t

• L

oss

of,

or

dis

turb

ance

to

, h

abit

at c

riti

cal t

o

mar

ine

fau

na

fro

m

seab

ed

d

istu

rban

ce

du

rin

g n

ears

ho

re

con

stru

ctio

n

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

ele

ctio

n o

f n

avig

atio

n c

han

nel

, M

OF

and

pla

cem

ent

site

s to

re

du

ce

risk

s to

hab

itat

cri

tica

l (n

esti

ng

, fe

ed

ing

and

calv

ing

area

s) f

or

mar

ine

fau

na

such

as

Hu

mp

ba

cks,

D

ug

on

gs

and

turt

les

• C

on

stru

ctio

n w

ill c

om

ply

wit

h t

he

OP

GG

S A

ct (C

th)

and

the

Pet

role

um

(S

ub

mer

ge

d L

and

s)

(Man

agem

ent

of

En

viro

nm

ent)

R

eg

ula

tio

ns

199

9 (a

s am

end

ed

2

00

5)

as t

hey

ap

ply

fro

m t

ime

to

tim

e

52

Low

• T

he

pro

po

sed

ch

ann

el, M

OF

and

pla

cem

ent

site

s d

o n

ot

trav

erse

or

sup

po

rt c

riti

cal

hab

itat

fo

r m

arin

e m

amm

als

and

tu

rtle

s

• M

arin

e m

amm

als

and

tu

rtle

occ

ur

in

low

den

siti

es in

ar

eas

pro

po

sed

fo

r th

e P

LF

and

tr

un

klin

e

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Mari

ne

Fau

na

Co

nst

ruct

ion

Co

nst

ruct

ion

A

ctiv

itie

s (m

arin

e):

Inst

alla

tio

n o

f al

l off

sho

re

infr

astr

uct

ure

• L

oss

of,

or

dis

turb

ance

to

, h

abit

at c

riti

cal t

o

mar

ine

fau

na

fro

m

seab

ed

d

istu

rban

ce

du

rin

g o

ffsh

ore

co

nst

ruct

ion

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

ele

ctio

n o

f n

avig

atio

n c

han

nel

, M

OF

and

pla

cem

ent

site

s to

re

du

ce

risk

s to

hab

itat

cri

tica

l (n

esti

ng

, fe

ed

ing

and

calv

ing

area

s) f

or

mar

ine

fau

na

such

as

Hu

mp

ba

cks,

D

ug

on

gs

and

turt

les

• Im

ple

men

tin

g an

ap

pro

ved

DE

MP

in

acc

ord

ance

wit

h t

he

OP

GG

S A

ct

(Cth

) an

d th

e P

etro

leu

m

(Su

bm

erg

ed

Lan

ds)

(M

anag

emen

t o

f E

nvi

ron

men

t) R

eg

ula

tio

ns

199

9

(as

amen

de

d 2

00

5)

as t

hey

ap

ply

fr

om

tim

e to

tim

e

54

Ver

y

Low

• T

he

loca

tio

n o

f th

e o

ffsh

ore

in

fras

tru

ctu

re

do

es n

ot

sup

po

rt

crit

ical

hab

itat

fo

r m

arin

e m

amm

als

or

turt

les

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Mari

ne

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Ves

sel

Mo

vem

ents

• In

jury

or

fata

litie

s to

Pro

tect

ed

M

arin

e Fa

un

a d

ue

to in

tera

ctio

ns

wit

h v

esse

ls

• C

han

ges

to

m

igra

tory

p

atte

rns,

fo

rag

ing

, b

ree

din

g

beh

avio

ur

of

pro

tect

ed

fau

na

as

a re

sult

of

dis

turb

ance

• H

eig

hte

ne

d

com

mu

nit

y/

reg

ula

tor

con

cern

42

Mediu

m•

Co

nsi

der

s ca

pit

al a

nd

m

ain

ten

ance

d

red

gin

g

• R

isk

asse

ssm

ent

con

sid

ers

it

alm

ost

cer

tain

th

at, o

ver

the

life

of

the

Pro

ject

, th

ere

will

be

inte

ract

ion

wit

h

pro

tect

ed

m

arin

e fa

un

a

• T

he

con

seq

uen

ce

ran

kin

g

con

sid

ere

d th

e fu

ll 2

5 M

TP

A

LN

G p

lan

t ca

pa

city

an

d th

e m

ost

sen

siti

ve

spe

cies

• R

efer

to

DS

DM

P a

nd

MF

MP

fo

r co

mp

lete

list

of

mit

igat

ion

m

easu

res

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• T

he

follo

win

g m

ana

gem

ent

mea

sure

s w

ill b

e ap

plie

d d

uri

ng

co

nst

ruct

ion

an

d o

per

atio

n o

f n

ears

ho

re in

fras

tru

ctu

re:

Pri

or

to t

he

com

men

cem

ent

of

• d

red

gin

g se

lect

ed

crew

will

re

ceiv

e tr

ain

ing

, wh

ich

will

in

clu

de

det

ails

on

pro

ced

ure

s in

th

e ev

ent

of

sig

hti

ng

, in

jury

an

d/

or

dea

th o

f P

rote

cte

d M

arin

e Fa

un

a (e

.g. H

um

pb

ack

s,

Du

go

ng

, tu

rtle

s, d

olp

hin

s)

All

sig

hti

ng

s o

f H

um

pb

ack

s an

d

• D

ug

on

g th

at r

esu

lt in

m

ana

gem

ent

act

ion

s b

ein

g

imp

lem

ente

d w

ill b

e re

cord

ed

Th

e ve

ssel

mas

ter

will

mai

nta

in

• a

log

of

ob

serv

ed

in-w

ater

in

cid

ents

or

inju

red

/dea

d tu

rtle

s an

d m

arin

e m

amm

als

Hu

mp

ba

cks

and

Du

go

ng

•

ob

serv

atio

ns

and

resp

on

se

pro

ced

ure

s, in

clu

din

g n

ot

com

men

cin

g d

red

gin

g o

r p

lace

men

t if

wh

ales

or

Du

go

ng

s ar

e si

gh

ted

wit

hin

a 3

00

m

ob

serv

atio

n z

on

e an

d ce

asin

g

dre

dg

ing

act

ivit

ies

if w

hal

es o

r D

ug

on

gs

ente

r a

100

m e

xclu

sio

n

zon

e

A t

rain

ed

crew

mem

ber

will

•

mai

nta

in a

loo

kou

t, d

uri

ng

d

aylig

ht

ho

urs

, fo

r H

um

pb

ack

s an

d D

ug

on

gs

wh

ile d

red

ge

are

mo

vin

g to

an

d fr

om

th

e d

red

ge

area

to

dre

dg

e m

ater

ial

pla

cem

ent

site

s. If

sig

hte

d,

dir

ect

ion

/sp

ee

d w

ill b

e a

dju

ste

d

to r

ed

uce

th

e lik

elih

oo

d o

f im

pa

ct (w

ith

in t

he

safe

ty

con

stra

ints

of

the

vess

el)

An

y in

cid

ent

invo

lvin

g th

e in

jury

•

or

mo

rtal

ity

of

turt

les

will

be

rep

ort

ed

to t

he

DE

C a

nd

DE

WH

A

wit

hin

48

ho

urs

of

the

inci

den

t o

ccu

rrin

g

43

Low

• V

esse

l sp

ee

ds

will

be

reg

ula

ted

• T

he

loca

tio

n o

f th

e p

rop

ose

d

nav

igat

ion

ch

ann

el d

oes

no

t su

pp

ort

hig

h

den

siti

es o

f m

arin

e fa

un

a (b

ase

d o

n a

eria

l an

d b

oat

bas

ed

su

rvey

s). T

urt

le

den

siti

es a

re

hig

hes

t o

ver

off

sho

re r

eef

s

• P

rese

nce

of

larg

e n

um

ber

s o

f H

um

pb

ack

s is

se

aso

nal

• T

he

maj

ori

ty o

f H

um

pb

ack

s re

mai

n in

d

eep

wat

er

bey

on

d th

e n

ears

ho

re

con

stru

ctio

n

loca

tio

n

• U

se o

f m

itig

atio

n

mea

sure

s su

ch

as m

arin

e fa

un

a o

bse

rver

s an

d

excl

usi

on

zo

nes

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

S

1

2.0

A

pp

end

ix

O6



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Ves

sel

Mo

vem

ents

• In

tro

du

ctio

n o

f m

arin

e p

est

spe

cies

to

th

e m

arin

e en

viro

nm

ent

• L

oss

of

bio

div

ersi

ty

34

Low

• A

sses

sed

in

En

viro

nm

enta

l S

cop

ing

D

ocu

men

t w

ith

b

oth

BP

PH

an

d

Mar

ine

Fau

na

as

the

rece

pto

r

• Fo

r th

is r

isk

asse

ssm

ent

the

focu

s w

as o

n t

he

intr

od

uct

ion

of

no

n-i

nd

igen

ou

s sp

eci

es

• T

he

risk

as

sess

men

t w

as

bas

ed

on

in

tro

du

ced

sp

eci

es’

sub

seq

uen

t im

pa

ct o

n

mar

ine

BP

PH

an

d b

iod

iver

sity

• P

ub

lic a

nd

fi

sher

ies

con

cern

s w

ere

con

sid

ere

d as

p

art

of

the

asse

ssm

ent

• P

ote

nti

al f

or

re-a

lign

men

t o

f L

EP

b

ou

nd

arie

s

• Im

ple

men

t In

tro

du

ced

Mar

ine

Pes

t (I

MP

) ri

sk a

sses

smen

ts, w

ith

th

e o

bje

ctiv

e o

f as

sess

men

t al

l co

nst

ruct

ion

ves

sels

en

teri

ng

the

nea

rsh

ore

are

a

Ves

sels

ass

esse

d as

hig

h o

r •

un

cert

ain

ris

k w

ill b

e in

spe

cte

d

pri

or

to m

ob

ilisa

tio

n

If IM

P a

re f

ou

nd

vess

els

will

be

• cl

ean

ed

pri

or

to m

ob

ilisa

tio

n

If v

esse

l on

sit

e is

fo

un

d to

hav

e •

IMP,

su

rvey

s w

ill b

e co

nd

uct

ed

to

det

erm

ine

if f

urt

her

act

ion

is

req

uir

ed

All

vess

els

un

der

th

e co

ntr

ol o

f •

the

Pro

po

nen

t w

ill c

om

ply

wit

h

AQ

IS b

alla

st w

ater

dis

char

ge

req

uir

emen

ts (

Au

stra

lian

B

alla

st W

ater

Man

ag

emen

t R

eq

uir

emen

ts V

4 2

00

8)

53

Low

• W

ill r

ed

uce

th

e ri

sk f

or

intr

od

uci

ng

m

arin

e p

ests

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Mari

ne

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Ves

sel

Mo

vem

ents

• In

tro

du

ctio

n o

f d

isea

ses

and

p

ath

og

ens

to

aq

ua

cult

ure

o

per

atio

ns

and

co

mm

erci

al a

nd

re

crea

tio

nal

fi

sher

ies

• L

oss

of

bio

div

ersi

ty

• B

rea

ch o

f m

arin

e b

iose

curi

ty

34

Low

• A

sses

sed

in

En

viro

nm

enta

l S

cop

ing

D

ocu

men

t w

ith

b

oth

BP

PH

an

d

Mar

ine

Fau

na

as

the

rece

pto

r

• Fo

r th

is r

isk

asse

ssm

ent

the

focu

s w

as o

n t

he

intr

od

uct

ion

of

no

n-i

nd

igen

ou

s sp

eci

es

• T

he

risk

as

sess

men

t w

as

bas

ed

on

in

tro

du

ced

sp

eci

es’

sub

seq

uen

t im

pa

ct o

n

mar

ine

BP

PH

an

d b

iod

iver

sity

• P

ub

lic a

nd

fi

sher

ies

con

cern

s w

ere

con

sid

ere

d as

p

art

of

the

asse

ssm

ent

• P

ote

nti

al f

or

re-a

lign

men

t o

f L

EP

b

ou

nd

arie

s

• Im

ple

men

t in

tro

du

ced

mar

ine

pes

t (I

MP

) ri

sk a

sses

smen

ts, w

ith

th

e o

bje

ctiv

e o

f as

sess

men

t al

l co

nst

ruct

ion

ves

sels

en

teri

ng

the

nea

rsh

ore

are

a

• V

esse

ls a

sses

sed

as h

igh

or

un

cert

ain

ris

k w

ill b

e in

spe

cte

d

pri

or

to m

ob

ilisa

tio

n

• If

IMP

are

fo

un

d ve

ssel

s w

ill b

e cl

ean

ed

pri

or

to m

ob

ilisa

tio

n

• If

ves

sel o

n s

ite

is f

ou

nd

to h

ave

IMP,

su

rvey

s w

ill b

e co

nd

uct

ed

to

det

erm

ine

if f

urt

her

act

ion

is

req

uir

ed

• A

ll ve

ssel

s u

nd

er t

he

con

tro

l of

the

Pro

po

nen

t w

ill c

om

ply

wit

h A

QIS

b

alla

st w

ater

dis

char

ge

req

uir

emen

ts (

Au

stra

lian

Bal

last

W

ater

Man

ag

emen

t R

eq

uir

emen

ts

V4

20

08

)

• T

he

Pro

po

nen

t w

ill u

nd

erta

ke

mar

ine

pes

t m

on

ito

rin

g an

d ap

ply

ri

sk m

itig

atio

n in

rel

atio

n t

o

bio

secu

rity

th

at c

on

sid

ers

Dep

artm

ent

of

Fis

her

ies

(Do

F)

pro

toco

ls a

nd

pro

ced

ure

s an

d

the

spe

cifi

c re

qu

irem

ents

of

th

e P

roje

ct

25

Low

• W

ill r

ed

uce

th

e ri

sk f

or

intr

od

uci

ng

m

arin

e p

ests

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Incr

ease

d

Re

crea

tio

nal

P

ress

ure

(F

ish

ing

, B

oat

ing

and

Is

lan

d A

cces

s)

• O

verfi

shin

g o

f fi

sh

sto

ck, r

esu

ltin

g in

st

ock

de

clin

e,

red

uct

ion

in

abu

nd

ance

an

d

po

pu

lati

on

hea

lth

, al

tere

d tr

op

hic

le

vel,

po

ten

tial

tr

op

hic

cas

cad

e

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

th

e M

FM

P

• To

re

du

ce t

he

po

ten

tial

fo

r o

verfi

shin

g o

ccu

rrin

g in

th

e P

roje

ct a

rea

, th

e fo

llow

ing

act

ion

m

ay b

e im

ple

men

ted

:

Info

rm P

roje

ct s

taff

/co

ntr

act

ors

•

of

recr

eati

on

al fi

shin

g

Re

gu

lati

on

s

Th

e P

rop

on

ent

will

wo

rk w

ith

•

the

Do

F to

re

du

ce p

ote

nti

al r

isks

to

th

e ex

isti

ng

recr

eati

on

al

fish

ery

Re

crea

tio

nal

bo

ats

and

•

recr

eati

on

al v

ehic

les

will

no

t b

e p

erm

itte

d w

ith

in t

he

wo

rkfo

rce

acc

om

mo

dat

ion

vill

ag

e o

r to

tr

avel

on

th

e a

cces

s ro

ad

fro

m

On

slo

w R

oa

d

Beh

avio

ur

stan

dar

ds

to b

e •

exp

ect

ed

fro

m a

ll co

nst

ruct

ion

w

ork

ers

will

be

clea

rly

arti

cula

ted

in a

Re

crea

tio

n C

od

e o

f C

on

du

ct. C

on

stru

ctio

n

wo

rker

s w

ill b

e as

ked

to s

ign

th

e C

od

e o

f C

on

du

ct

A c

om

mu

nit

y fe

ed

ba

ck

• p

roce

du

re w

ill b

e es

tab

lish

ed

w

her

eby

any

com

pla

ints

fro

m

the

com

mu

nit

y ab

ou

t u

na

ccep

tab

le b

ehav

iou

r fr

om

co

nst

ruct

ion

wo

rker

s w

ill b

e in

vest

igat

ed

and

, wh

ere

ne

cess

ary,

act

ion

tak

en

33

Mediu

m•

An

incr

ease

in

the

leve

l of

recr

eati

on

al

fish

ing

act

ivit

y

• A

co

de

of

con

du

ct w

ill b

e d

evel

op

ed

to

red

uce

th

e im

pa

ct o

f fi

sher

s o

n lo

cal fi

sh

sto

cks

• D

iffi

cult

to

p

red

ict

the

po

ten

tial

fish

ing

p

ress

ure

as

soci

ate

d w

ith

la

rge

nu

mb

ers

of

pe

op

le

Low

Un

cert

ain

ties

su

rro

un

din

g lo

cal

stat

us

of

fish

st

ock

s)

No

ne

kno

wn

Se

ctio

n 8

.4

Ap

pen

dix

O

6



Mari

ne

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Incr

ease

d

Re

crea

tio

nal

P

ress

ure

(F

ish

ing

, B

oat

ing

and

Is

lan

d A

cces

s)

• In

jury

/mo

rtal

ity

and

/or

dis

turb

ance

to

D

ug

on

gs

and

tu

rtle

s d

ue

to

vess

el c

olli

sio

n

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

MF

MP

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• To

re

du

ce t

he

po

ten

tial

fo

r in

crea

sed

vess

el s

trik

es o

f D

ug

on

gs

and

turt

les

fro

m

incr

ease

d re

crea

tio

nal

pre

ssu

re

the

follo

win

g a

ctio

n m

ay b

e im

ple

men

ted

:

Info

rm P

roje

ct s

taff

/co

ntr

act

ors

•

of

DE

C r

ule

s re

lati

ng

to t

he

Wild

life

Co

nse

rvat

ion

Act

195

0

e.g

. dis

tan

ce t

o k

eep

fro

m

anim

als

Re

crea

tio

nal

bo

ats

and

•

recr

eati

on

al v

ehic

les

will

no

t b

e p

erm

itte

d w

ith

in t

he

bo

un

dar

ies

of

the

Pro

ject

are

a o

r to

tra

vel

on

th

e a

cces

s ro

ad

fro

m O

nsl

ow

R

oa

d

Beh

avio

ur

stan

dar

ds

to b

e •

exp

ect

ed

fro

m a

ll co

nst

ruct

ion

w

ork

ers

will

be

clea

rly

arti

cula

ted

in a

Re

crea

tio

n C

od

e o

f C

on

du

ct. C

on

stru

ctio

n

wo

rker

s w

ill b

e as

ked

to s

ign

th

e C

od

e o

f C

on

du

ct

A c

om

mu

nit

y fe

ed

ba

ck

• p

roce

du

re w

ill b

e es

tab

lish

ed

w

her

eby

any

com

pla

ints

fro

m

the

com

mu

nit

y ab

ou

t u

na

ccep

tab

le b

ehav

iou

r fr

om

co

nst

ruct

ion

wo

rker

s w

ill b

e in

vest

igat

ed

and

, wh

ere

ne

cess

ary,

act

ion

tak

en

33

Mediu

m•

An

incr

ease

in

the

leve

l of

recr

eati

on

al

bo

atin

g a

ctiv

ity

• A

co

de

of

con

du

ct w

ill b

e d

evel

op

ed

to

red

uce

th

e im

pa

ct o

f b

oat

ers

on

m

arin

e fa

un

a

• D

iffi

cult

to

p

red

ict

the

leve

l o

f p

ote

nti

al

recr

eati

on

al

vess

el a

ctiv

ity

asso

ciat

ed

wit

h

larg

e n

um

ber

s o

f p

eo

ple

Low

Un

cert

ain

ties

su

rro

un

din

g

man

ag

emen

t

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

bu

t w

ith

g

aps

Du

go

ng

s

Turt

les

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

O

6



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Incr

ease

d

Re

crea

tio

nal

P

ress

ure

(F

ish

ing

, B

oat

ing

and

Is

lan

d A

cces

s)

• D

istu

rban

ce

lea

din

g to

re

du

ced

b

ree

din

g su

cces

s o

f n

esti

ng

mar

ine

turt

les

and

se

abir

ds

• In

terf

eren

ce w

ith

a

du

lt o

r h

atch

ling

tu

rtle

s

• Tr

amp

ling

of

nes

ts

and

bu

rro

ws

• E

rosi

on

of

suit

able

n

esti

ng

area

s

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

MF

MP

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• To

re

du

ce im

pa

cts

to P

rote

cte

d

Mar

ine

Fau

na

(tu

rtle

s an

d n

esti

ng

b

ird

s o

n is

lan

ds)

fro

m in

crea

sed

re

crea

tio

nal

pre

ssu

re t

he

follo

win

g

act

ion

s m

ay b

e im

ple

men

ted

:

Mak

e ex

isti

ng

mam

mal

an

d

• tu

rtle

aer

ial s

igh

tin

g d

ata

avai

lab

le t

o D

EC

fo

r p

lan

nin

g

pu

rpo

ses

rela

tin

g to

re

crea

tio

nal

bo

atin

g a

ctiv

ity

in

the

On

slo

w r

eg

ion

Info

rm P

roje

ct s

taff

/co

ntr

act

ors

•

of

DE

C r

ule

s re

lati

ng

to o

ffsh

ore

n

atu

re r

eser

ves

e.g

. d

om

esti

cate

d an

imal

s (s

uch

as

do

gs

and

cats

) w

ill b

e p

roh

ibit

ed

o

n o

ffsh

ore

isla

nd

s/re

serv

es

Th

e P

rop

on

ent

will

wo

rk w

ith

•

the

DE

C t

o r

ed

uce

po

ten

tial

ri

sks

fro

m e

xces

sive

re

crea

tio

nal

use

of

the

isla

nd

s w

ith

in a

25

km r

ad

ius

of

On

slo

w

Re

crea

tio

nal

bo

ats

and

•

recr

eati

on

al v

ehic

les

will

no

t b

e p

erm

itte

d w

ith

in t

he

wo

rkfo

rce

acc

om

mo

dat

ion

vill

ag

e o

r to

tr

avel

on

th

e a

cces

s ro

ad

fro

m

On

slo

w R

oa

d

Beh

avio

ur

stan

dar

ds

to b

e •

exp

ect

ed

fro

m a

ll co

nst

ruct

ion

w

ork

ers

will

be

clea

rly

arti

cula

ted

in a

Re

crea

tio

n C

od

e o

f C

on

du

ct. C

on

stru

ctio

n

wo

rker

s w

ill b

e as

ked

to s

ign

th

e C

od

e o

f C

on

du

ct

A c

om

mu

nit

y fe

ed

ba

ck

• p

roce

du

re w

ill b

e es

tab

lish

ed

w

her

eby

any

com

pla

ints

fro

m

the

com

mu

nit

y ab

ou

t u

na

ccep

tab

le b

ehav

iou

r fr

om

co

nst

ruct

ion

wo

rker

s w

ill b

e in

vest

igat

ed

and

, wh

ere

ne

cess

ary,

act

ion

tak

en

33

Mediu

m•

Incr

ease

in t

he

leve

l of

recr

eati

on

al u

se

of

the

isla

nd

s

• A

co

de

of

con

du

ct w

ill b

e d

evel

op

ed

to

red

uce

th

e im

pa

ct o

f re

crea

tio

nis

ts o

n

isla

nd

fau

na

• D

iffi

cult

to

p

red

ict

the

leve

l o

f p

ote

nti

al

recr

eati

on

al

vess

el a

ctiv

ity

asso

ciat

ed

wit

h

larg

e n

um

ber

s o

f p

eo

ple

Low

Un

cert

ain

ties

su

rro

un

din

g

man

ag

emen

t (t

her

e is

so

me

info

rmat

ion

on

is

lan

d h

abit

ats

and

spe

cies

of

nes

tin

g b

ird

s an

d

turt

les

avai

lab

le)

Turt

les

Sea

bir

ds

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

O

6



Mari

ne

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Incr

ease

d

Re

crea

tio

nal

P

ress

ure

(F

ish

ing

, B

oat

ing

and

Is

lan

d A

cces

s)

• E

nta

ng

lem

ent

or

ing

esti

on

of

mar

ine

deb

ris

fro

m r

ecr

eati

on

al

bo

ats

by

mar

ine

fau

na

e.g

. g

arb

ag

e, p

last

ics,

fi

shin

g lin

e

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

MF

MP

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• To

re

du

ce im

pa

cts

to m

arin

e fa

un

a fr

om

en

tan

gle

men

t/in

ges

tio

n o

f m

arin

e d

ebri

s th

e fo

llow

ing

act

ion

s m

ay b

e im

ple

men

ted

:

Co

nse

rvat

ion

ind

uct

ion

•

pro

gra

ms

will

be

run

fo

r em

plo

yees

an

d co

ntr

act

ors

(e.g

. to

incl

ud

e e

du

cati

on

of

bet

ter

dis

po

sal o

f fi

shin

g lin

e an

d u

se

of

bio

de

gra

dab

le fi

shin

g lin

e)

Re

crea

tio

nal

bo

ats

and

•

recr

eati

on

al v

ehic

les

will

no

t b

e p

erm

itte

d w

ith

in t

he

wo

rkfo

rce

acc

om

mo

dat

ion

vill

ag

e o

r to

tr

avel

on

th

e a

cces

s ro

ad

fro

m

On

slo

w R

oa

d

Beh

avio

ur

stan

dar

ds

to b

e •

exp

ect

ed

fro

m a

ll co

nst

ruct

ion

w

ork

ers

will

be

clea

rly

arti

cula

ted

in a

Re

crea

tio

n C

od

e o

f C

on

du

ct. C

on

stru

ctio

n

wo

rker

s w

ill b

e as

ked

to s

ign

th

e C

od

e o

f C

on

du

ct

A c

om

mu

nit

y fe

ed

ba

ck

• p

roce

du

re w

ill b

e es

tab

lish

ed

w

her

eby

any

com

pla

ints

fro

m

the

com

mu

nit

y ab

ou

t u

na

ccep

tab

le b

ehav

iou

r fr

om

co

nst

ruct

ion

wo

rker

s w

ill b

e in

vest

igat

ed

and

, wh

ere

ne

cess

ary,

act

ion

tak

en

53

Low

• A

co

de

of

con

du

ct w

ill b

e d

evel

op

ed

to

red

uce

th

e im

pa

ct o

f re

crea

tio

nis

ts o

n

the

mar

ine

envi

ron

men

t

• D

iffi

cult

to

p

red

ict

the

leve

l o

f p

ote

nti

al

recr

eati

on

al

vess

el a

ctiv

ity

asso

ciat

ed

wit

h

larg

e n

um

ber

s o

f p

eo

ple

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

O

6



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Op

erat

ion

sD

isch

arg

es a

nd

W

aste

s fr

om

N

ears

ho

re

Op

erat

ion

s

• D

istu

rban

ce t

o

pro

tect

ed

mar

ine

fau

na

.

54

Ver

y

Low

• T

his

ris

k as

sess

men

t as

sum

es t

he

min

imu

m

stan

dar

ds

will

be

app

lied

to

was

tew

ater

d

isch

arg

es f

rom

o

nsh

ore

in

fras

tru

ctu

re

and

thu

s w

ill n

ot

imp

act

on

p

rote

cte

d

mar

ine

fau

na

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• E

nd

of

pip

e d

iffu

ser

loca

ted

at

th

e P

LF

• M

ixin

g zo

ne

bo

un

dar

ies

to b

e es

tab

lish

ed

and

mo

nit

ori

ng

to

ach

ieve

ap

plic

able

wat

er q

ual

ity

targ

ets

at m

ixin

g zo

ne

bo

un

dar

y

• S

ele

ctio

n o

f o

utf

all l

oca

tio

n a

nd

d

iffu

ser

des

ign

fo

r a

de

qu

ate

dilu

tio

n a

nd

dis

per

sio

n o

f P

W

• T

he

Pro

po

nen

t w

ill d

eter

min

e P

NE

C f

or

PW

dis

char

ge

• M

ana

ge

dis

char

ges

by

taki

ng

into

a

cco

un

t th

e th

resh

old

lim

its

of

the

AN

ZE

CC

/AR

MC

AN

Z g

uid

elin

es

• Tr

eatm

ent

of

PW

wit

h t

he

ob

ject

ive

of

me

etin

g th

e re

qu

irem

ents

of

the

Off

sho

re P

etro

leu

m a

nd

G

reen

ho

use

Gas

Sto

rag

e (E

nvi

ron

men

t) R

eg

ula

tio

ns

20

09

as

th

ey a

pp

ly f

or

tim

e to

tim

e

• M

on

ito

r P

W c

on

cen

trat

ion

s p

rio

r to

d

isch

arg

e

• D

iffu

ser

des

ign

an

d si

ze o

f m

ixin

g

zon

e sh

all t

ake

into

co

nsi

der

atio

n

the

targ

et f

or

PN

EC

54

Ver

y

Low

• M

od

ellin

g

sug

ges

ts t

hat

w

ith

th

e ap

plic

atio

n o

f ap

pro

pri

ate

mit

igat

ion

m

easu

res,

d

isch

arg

es a

re

un

likel

y to

ex

cee

d A

NZ

EC

C/

AR

MC

AN

Z

gu

idel

ines

un

der

m

ost

sce

nar

ios

• O

utf

all i

n

loca

tio

n n

ot

sup

po

rtin

g

crit

ical

or

sen

siti

ve h

abit

at

for

mar

ine

fau

na

• D

isch

arg

es w

ill

be

trea

ted

to

me

et

go

vern

men

t st

and

ard

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.6

Mari

ne

Fau

na

Op

erat

ion

sD

isch

arg

es a

nd

W

aste

s fr

om

N

ears

ho

re

Op

erat

ion

s

• In

crea

se in

n

utr

ien

ts in

wat

er

lea

din

g to

eu

tro

ph

icat

ion

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

s ab

ove

54

Ver

y

Low

• M

od

ellin

g

sug

ges

ts t

hat

w

ith

th

e ap

plic

atio

n o

f ap

pro

pri

ate

mit

igat

ion

m

easu

res,

d

isch

arg

es a

re

likel

y n

ot

to

exce

ed

AN

ZE

CC

/A

RM

CA

NZ

g

uid

elin

es u

nd

er

mo

st s

cen

ario

s

• O

utf

all i

n

loca

tio

n n

ot

sup

po

rtin

g

crit

ical

or

sen

siti

ve h

abit

at

for

mar

ine

fau

na

• D

isch

arg

es w

ill

be

trea

ted

to

me

et

go

vern

men

t st

and

ard

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Mari

ne

Fau

na

Op

erat

ion

sR

ou

tin

e D

isch

arg

es

fro

m O

ffsh

ore

A

ctiv

itie

s

• To

xic

effe

cts

to

mar

ine

fau

na

fro

m

off

sho

re

dis

char

ges

54

Ver

y

Low

• T

his

ris

k as

sess

men

t as

sum

es t

he

min

imu

m

stan

dar

ds

will

be

app

lied

to

was

tew

ater

d

isch

arg

es f

rom

o

ffsh

ore

in

fras

tru

ctu

re

and

thu

s w

ill n

ot

imp

act

on

p

rote

cte

d

mar

ine

fau

na

• T

he

Pro

po

nen

t w

ill d

eter

min

e P

NE

C f

or

PW

dis

char

ge

thro

ug

h

eco

toxi

city

tes

tin

g

• C

om

plia

nce

wit

h t

he

Off

sho

re

Pet

role

um

an

d G

reen

ho

use

Gas

S

tora

ge

(En

viro

nm

ent)

Re

gu

lati

on

s 2

00

9, a

s th

ey a

pp

ly f

rom

tim

e to

ti

me

• C

on

tro

l rat

e, t

imin

g an

d

char

act

eris

tics

of

dis

char

ge

of

ME

G

wit

h t

he

ob

ject

ive

of

mai

nta

inin

g

dis

char

ge

wat

er q

ual

ity

at a

leve

l n

ot

in e

xces

s o

f 5

0 m

g/L

loca

l to

th

e p

latf

orm

(or

an a

gre

ed

dis

tan

ce

fro

m t

he

pla

tfo

rm)

• M

on

ito

r P

W c

on

cen

trat

ion

s p

rio

r to

d

isch

arg

e

54

Ver

y

Low

• L

arg

e vo

lum

es

will

be

dis

char

ge

d, b

ut

the

area

of

dis

char

ge

is in

d

eep

wat

er a

nd

h

igh

ly m

ixe

d

• T

her

e is

no

cr

itic

al f

aun

a h

abit

at a

t ri

sk

fro

m d

isch

arg

e in

th

e n

ear

vici

nit

y o

f th

e p

latf

orm

• A

do

pti

on

of

mit

igat

ion

an

d

mo

nit

ori

ng

co

mm

itm

ents

• D

isch

arg

es w

ill

be

trea

ted

to

me

et

go

vern

men

t st

and

ard

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Mari

ne

Fau

na

Op

erat

ion

sL

eaks

an

d S

pill

s (N

ears

ho

re)

• L

eaks

or

spill

s le

ad

ing

to t

he

loss

o

f h

abit

at f

or

mar

ine

fau

na

54

Ver

y

Low

• T

his

ris

k as

sess

men

t as

sum

es a

w

ors

t-ca

se

maj

or

spill

of

con

den

sate

• T

he

risk

as

sess

men

t as

sum

es a

w

ors

t-ca

se

ad

vers

e ef

fect

s o

n a

re

gio

nal

ly

sig

nifi

can

t st

and

o

f m

ang

rove

s

• R

efer

to

DS

DM

P a

nd

MF

MP

fo

r co

mp

lete

list

of

mit

igat

ion

m

easu

res

• Im

ple

men

tati

on

, wh

ere

pra

ctic

able

, of

rele

van

t A

ust

ralia

S

tan

dar

ds

and

Co

des

in t

he

init

ial

des

ign

inte

gri

ty, p

roce

ss a

nd

uti

lity

eq

uip

men

t, m

ater

ials

han

dlin

g an

d

op

erat

ing

and

mai

nte

nan

ce

pro

ced

ure

s w

ith

th

e o

bje

ctiv

e o

f re

du

cin

g sp

ills

• A

DM

P a

pp

rove

d M

OP

P w

ill b

e im

ple

men

ted

and

rele

van

t p

erso

nn

el w

ill b

e tr

ain

ed

in

acc

ord

ance

wit

h t

he

MO

PP

• C

lean

up

and

rem

ed

iati

on

met

ho

ds

will

be

imp

lem

ente

d in

th

e ev

ent

of

a sp

ill

44

Low

• T

he

risk

of

maj

or

spill

s as

soci

ate

d

wit

h n

ears

ho

re

infr

astr

uct

ure

is

low

• C

on

den

sate

is

hig

hly

ev

apo

rati

ve

• N

o t

urt

le n

esti

ng

b

each

es n

ear

PL

F an

d M

OF

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

n

ear

the

PL

F an

d

MO

F

• A

do

pti

on

of

mit

igat

ion

(a

pp

rove

d

MO

PP

) an

d

mo

nit

ori

ng

co

mm

itm

ents

• A

bili

ty t

o c

on

tain

an

d cl

ean

up

sp

ills

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Ap

pen

dix

S

1

Ap

pen

dix

O

6



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Op

erat

ion

sL

eaks

an

d S

pill

s (N

ears

ho

re)

• D

istu

rban

ce t

o

pro

tect

ed

mar

ine

fau

na

• To

xic

effe

cts

to

pro

tect

ed

mar

ine

fau

na

34

Low

• R

isk

ran

kin

g

bas

ed

on

im

pa

cts

on

in

tert

idal

h

abit

ats

and

im

pa

cts

of

spill

s o

n s

eab

ird

s,

wa

din

g b

ird

s an

d

turt

les

• W

ors

t-ca

se r

isk

bas

ed

on

co

nd

ensa

te t

ank

run

nin

g a

gro

un

d

and

asso

ciat

ed

sp

ill a

few

km

fr

om

sh

ore

• R

efer

to

DS

DM

P a

nd

MF

MP

fo

r co

mp

lete

list

of

mit

igat

ion

m

easu

res

• Im

ple

men

tati

on

, wh

ere

pra

ctic

able

, of

rele

van

t A

ust

ralia

S

tan

dar

ds

and

Co

des

in t

he

init

ial

des

ign

inte

gri

ty, p

roce

ss a

nd

uti

lity

eq

uip

men

t, m

ater

ials

han

dlin

g an

d

op

erat

ing

and

mai

nte

nan

ce

pro

ced

ure

s w

ith

th

e o

bje

ctiv

e o

f re

du

cin

g sp

ills

• A

DM

P a

pp

rove

d M

OP

P w

ill b

e im

ple

men

ted

and

rele

van

t p

erso

nn

el w

ill b

e tr

ain

ed

in

acc

ord

ance

wit

h t

he

MO

PP

• C

lean

up

and

rem

ed

iati

on

met

ho

ds

will

be

imp

lem

ente

d in

th

e ev

ent

of

a sp

ill

• T

he

follo

win

g m

easu

res

will

be

use

d d

uri

ng

dri

llin

g a

ctiv

itie

s to

re

du

ce t

he

risk

of

a su

bse

a b

low

ou

t:

Pro

visi

on

of

nu

mer

ou

s p

rim

ary

• an

d se

con

dar

y b

arri

ers

(su

bse

a sa

fety

val

ves,

Pro

du

ctio

n

Mas

ter

Val

ve, S

wab

Val

ve, T

ree

Cu

p, P

rod

uct

ion

Sh

utd

ow

n

Val

ve, P

rod

uct

ion

Win

g V

alve

et

c)

Wel

l bo

re s

tab

ility

mo

del

ing

for

• re

serv

oir

an

d o

verb

urd

en

form

atio

ns

Sp

eci

fic

and

app

rove

d co

ntr

ols

•

for

wo

rk-o

ver

or

re-e

ntr

y o

per

atio

ns

Exc

lusi

on

zo

ne

aro

un

d

• w

ellh

ead

s w

ith

no

an

cho

rin

g in

ex

clu

sio

n a

rea

gaz

ette

d an

d o

n

nav

igat

ion

al c

har

ts

34

Low

• T

he

risk

of

maj

or

spill

s as

soci

ate

d

wit

h n

ears

ho

re

infr

astr

uct

ure

is

low

• C

on

den

sate

is

hig

hly

ev

apo

rati

ve

• N

o t

urt

le n

esti

ng

b

each

es n

ear

PL

F an

d M

OF

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

n

ear

the

PL

F an

d

MO

F

• A

do

pti

on

of

mit

igat

ion

(a

pp

rove

d

MO

PP

) an

d

mo

nit

ori

ng

co

mm

itm

ents

• A

bili

ty t

o c

on

tain

an

d cl

ean

up

sp

ills

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Mari

ne

Fau

na

Op

erat

ion

sL

eaks

an

d S

pill

s (N

ears

ho

re)

• S

mo

ther

ing

and

or

oili

ng

of

mar

ine

fau

na

34

Low

• R

isk

ran

kin

g

bas

ed

on

im

pa

cts

on

in

tert

idal

h

abit

ats

and

im

pa

cts

of

spill

s o

n s

eab

ird

s,

wa

din

g b

ird

s an

d

turt

les

• W

ors

t-ca

se r

isk

bas

ed

on

co

nd

ensa

te t

ank

run

nin

g a

gro

un

d

and

asso

ciat

ed

sp

ill a

few

km

fr

om

sh

ore

• A

s ab

ove

34

Low

• A

s ab

ove

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Mari

ne

Fau

na

Op

erat

ion

sL

eaks

an

d S

pill

s (O

ffsh

ore

)•

Lea

ks o

r sp

ills

lea

din

g to

th

e lo

ss

of

hab

itat

fo

r m

arin

e fa

un

a

54

Ver

y

Low

• T

his

ris

k as

sess

men

t as

sum

es a

w

ors

t-ca

se

maj

or

spill

of

con

den

sate

• T

he

risk

as

sess

men

t as

sum

es a

w

ors

t-ca

se

ad

vers

e ef

fect

s o

n a

re

gio

nal

ly

sig

nifi

can

t st

and

o

f m

ang

rove

s

• A

s ab

ove

44

Low

• T

he

risk

of

maj

or

spill

s as

soci

ate

d

wit

h o

ffsh

ore

in

fras

tru

ctu

re is

lo

w

• C

on

den

sate

is

hig

hly

ev

apo

rati

ve

• M

arin

e m

amm

als

occ

ur

in lo

w d

ensi

ties

n

ear

the

Pla

tfo

rm

• D

ista

nce

of

pla

tfo

rm f

rom

tu

rtle

nes

tin

g

bea

ches

an

d

isla

nd

s su

pp

ort

ing

se

abir

ds

• A

do

pti

on

of

mit

igat

ion

(a

pp

rove

d

MO

PP

) an

d

mo

nit

ori

ng

co

mm

itm

ents

.

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Mari

ne

Fau

na

Op

erat

ion

sL

eaks

an

d S

pill

s (O

ffsh

ore

)•

Dis

turb

ance

to

p

rote

cte

d m

arin

e fa

un

a

• To

xic

effe

cts

to

pro

tect

ed

mar

ine

fau

na

34

Low

• R

isk

ran

kin

g

bas

ed

on

im

pa

cts

on

in

tert

idal

h

abit

ats

and

im

pa

cts

of

spill

s o

n s

eab

ird

s,

wa

din

g b

ird

s an

d

turt

les

• W

ors

t-ca

se r

isk

bas

ed

on

co

nd

ensa

te t

ank

run

nin

g a

gro

un

d

and

asso

ciat

ed

sp

ill a

few

km

fr

om

sh

ore

• A

s ab

ove

34

Low

• A

s ab

ove

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Op

erat

ion

sL

eaks

an

d S

pill

s (O

ffsh

ore

)•

Sm

oth

erin

g an

d o

r o

ilin

g o

f m

arin

e fa

un

a

34

Low

• R

isk

ran

kin

g

bas

ed

on

im

pa

cts

on

in

tert

idal

h

abit

ats

and

im

pa

cts

of

spill

s o

n s

eab

ird

s,

wa

din

g b

ird

s an

d

turt

les

• W

ors

t-ca

se r

isk

bas

ed

on

co

nd

ensa

te t

ank

run

nin

g a

gro

un

d

and

asso

ciat

ed

sp

ill a

few

km

fr

om

sh

ore

• R

efer

to

DS

DM

P a

nd

MF

MP

fo

r co

mp

lete

list

of

mit

igat

ion

m

easu

res

• Im

ple

men

tati

on

, wh

ere

pra

ctic

able

, of

rele

van

t A

ust

ralia

S

tan

dar

ds

and

Co

des

in t

he

init

ial

des

ign

inte

gri

ty, p

roce

ss a

nd

uti

lity

eq

uip

men

t, m

ater

ials

han

dlin

g an

d

op

erat

ing

and

mai

nte

nan

ce

pro

ced

ure

s w

ith

th

e o

bje

ctiv

e o

f re

du

cin

g sp

ills

• A

DM

P a

pp

rove

d M

OP

P w

ill b

e im

ple

men

ted

and

rele

van

t p

erso

nn

el w

ill b

e tr

ain

ed

in

acc

ord

ance

wit

h t

he

MO

PP

• C

lean

up

and

rem

ed

iati

on

met

ho

ds

will

be

imp

lem

ente

d in

th

e ev

ent

of

a sp

ill

• T

he

follo

win

g m

easu

res

will

be

use

d d

uri

ng

dri

llin

g a

ctiv

itie

s to

re

du

ce t

he

risk

of

a su

bse

a b

low

ou

t:

Pro

visi

on

of

nu

mer

ou

s p

rim

ary

• an

d se

con

dar

y b

arri

ers

(su

bse

a sa

fety

val

ves,

Pro

du

ctio

n

Mas

ter

Val

ve, S

wab

Val

ve, T

ree

Cu

p, P

rod

uct

ion

Sh

utd

ow

n

Val

ve, P

rod

uct

ion

Win

g V

alve

et

c)

Wel

l bo

re s

tab

ility

mo

del

ing

for

• re

serv

oir

an

d o

verb

urd

en

form

atio

ns

Sp

eci

fic

and

app

rove

d co

ntr

ols

•

for

wo

rk-o

ver

or

re-e

ntr

y o

per

atio

ns

Exc

lusi

on

zo

ne

aro

un

d

• w

ellh

ead

s w

ith

no

an

cho

rin

g in

ex

clu

sio

n a

rea

gaz

ette

d an

d o

n

nav

igat

ion

al c

har

ts

34

Low

• T

he

risk

of

maj

or

spill

s as

soci

ate

d

wit

h o

ffsh

ore

in

fras

tru

ctu

re is

lo

w

• C

on

den

sate

is

hig

hly

ev

apo

rati

ve

• M

arin

e m

amm

als

occ

ur

in lo

w d

ensi

ties

n

ear

the

Pla

tfo

rm

• D

ista

nce

of

pla

tfo

rm f

rom

tu

rtle

nes

tin

g

bea

ches

an

d

isla

nd

s su

pp

ort

ing

se

abir

ds

• A

do

pti

on

of

mit

igat

ion

(a

pp

rove

d

MO

PP

) an

d

mo

nit

ori

ng

co

mm

itm

ents

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Mari

ne

Fau

na

Co

nst

ruct

ion

No

ise

and

V

ibra

tio

n•

Alt

ere

d

dis

trib

uti

on

of

fau

na

du

e to

av

oid

ance

of

area

d

uri

ng

no

isy

con

stru

ctio

n

act

ivit

ies

(pili

ng

, d

red

gin

g, d

rilli

ng

)

• B

ehav

iou

ral

effe

cts

to

pro

tect

ed

mar

ine

fau

na

44

Low

• L

ikel

iho

od

of

no

ise

and

vi

bra

tio

n

imp

act

ing

m

arin

e fa

un

a

• N

ears

ho

re

envi

ron

men

t co

nsi

der

ed

to b

e th

e m

ost

se

nsi

tive

hab

itat

• R

eg

ula

tory

an

d

pu

blic

p

erce

pti

on

s co

nsi

der

ed

as

par

t o

f ri

sk

asse

ssm

ent

• R

efer

to

MF

MP

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• N

ears

ho

re in

fras

tru

ctu

re lo

cati

on

se

lect

ed

to r

ed

uce

ris

ks t

o c

riti

cal

hab

itat

• To

re

du

ce im

pa

cts

to m

arin

e fa

un

a th

e fo

llow

ing

act

ion

s w

ill b

e im

ple

men

ted

:

If a

mar

ine

mam

mal

or

turt

le

• en

ters

th

e o

bse

rvat

ion

zo

ne

(50

0 m

of

an a

ctiv

e p

ile

ham

mer

) th

e p

ilin

g su

per

viso

r (o

r o

ther

ind

ivid

ual

) w

ill b

e d

ire

cte

d to

mo

nit

or

the

mo

vem

ent

of

it in

rel

atio

n t

o t

he

act

ivit

y su

spen

sio

n z

on

e (s

ee

bel

ow

)

Pile

dri

vin

g a

ctiv

itie

s sh

all c

ease

•

if a

mar

ine

mam

mal

or

turt

le is

o

bse

rve

d w

ith

in t

he

act

ivit

y su

spen

sio

n z

on

e (1

00

m o

f an

a

ctiv

e p

ile h

amm

er)

Wh

ere

req

uir

ed

site

-sp

eci

fic

• n

ois

e m

od

ellin

g w

ill b

e u

nd

erta

ken

to

val

idat

e o

r m

od

ify

the

ad

op

ted

no

ise

man

ag

emen

t zo

nes

fo

r p

ilin

g

act

ivit

y

Mea

sure

s to

mit

igat

e a

gai

nst

•

the

po

ten

tial

ris

ks f

rom

ver

tica

l se

ism

ic p

rofi

ling

(VS

P)

will

be

dev

elo

pe

d (i

f re

qu

ire

d).

Th

ese

mea

sure

s w

ill c

on

sid

er s

eism

ic

gu

idel

ines

(D

EW

HA

, 20

08

), a

nd

w

ill b

e in

clu

de

d in

th

e d

raft

M

arin

e Fa

un

a M

ana

gem

ent

Pla

n

incl

ud

ed

wit

h t

he

Su

pp

lem

enta

ry E

IS/E

RM

P

43

Low

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

in

the

pro

po

sed

P

LF

(pili

ng

) ar

ea

• N

o t

urt

le n

esti

ng

o

n b

each

es

ad

jace

nt

to

pili

ng

act

ivit

y

• P

ilin

g is

a s

ho

rt

term

co

nst

ruct

ion

a

ctiv

ity

• T

he

ad

op

tio

n o

f m

itig

atio

n

mea

sure

s su

ch

as f

aun

a o

bse

rver

s an

d

ob

serv

atio

n

zon

es

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

O

6



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Op

erat

ion

sN

ois

e an

d

Vib

rati

on

• A

lter

ed

d

istr

ibu

tio

n o

f fa

un

a d

ue

to

avo

idan

ce o

f ar

ea

du

rin

g n

ois

y co

nst

ruct

ion

a

ctiv

itie

s (d

red

gin

g, d

rilli

ng

)

• B

ehav

iou

ral

effe

cts

to

pro

tect

ed

mar

ine

fau

na

44

Low

• L

ikel

iho

od

of

no

ise

and

vi

bra

tio

n

imp

act

ing

m

arin

e fa

un

a

• N

ears

ho

re

envi

ron

men

t co

nsi

der

ed

to b

e th

e m

ost

se

nsi

tive

hab

itat

• R

eg

ula

tory

an

d

pu

blic

p

erce

pti

on

s co

nsi

der

ed

as

par

t o

f ri

sk

asse

ssm

ent

• R

efer

to

MF

MP

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• M

ana

gem

ent

mea

sure

s w

ill b

e im

ple

men

ted

du

rin

g m

ain

ten

ance

d

red

gin

g w

ork

s as

fo

llow

s:

Pri

or

to t

he

com

men

cem

ent

of

• m

ain

ten

ance

dre

dg

ing

and

d

red

ge

mat

eria

l pla

cem

ent

sele

cte

d cr

ew w

ill r

ece

ive

mar

ine

fau

na

trai

nin

g, w

hic

h w

ill

incl

ud

e d

etai

ls o

n p

roce

du

res

in

the

even

t o

f si

gh

tin

g, i

nju

ry a

nd

/o

r d

eath

of

Pro

tect

ed

Mar

ine

Fau

na

(e.g

. Hu

mp

ba

cks,

D

ug

on

g, t

urt

les,

do

lph

ins)

All

sig

hti

ng

s o

f H

um

pb

ack

s an

d

• D

ug

on

g th

at r

esu

lt in

m

ana

gem

ent

act

ion

s b

ein

g

imp

lem

ente

d w

ill b

e re

cord

ed

Hu

mp

ba

ck w

hal

e an

d D

ug

on

g

• o

bse

rvat

ion

s an

d re

spo

nse

p

roce

du

res,

incl

ud

ing

no

t co

mm

enci

ng

dre

dg

ing

or

dis

po

sal i

f w

hal

es o

r D

ug

on

gs

are

sig

hte

d w

ith

in a

30

0 m

o

bse

rvat

ion

zo

ne

and

ceas

ing

d

red

gin

g a

ctiv

itie

s if

wh

ales

or

Du

go

ng

s en

ter

a 10

0 m

ex

clu

sio

n z

on

e

In t

he

even

t th

at a

Hu

mp

ba

ck

• o

r D

ug

on

g is

sig

hte

d w

ith

in t

he

100

m e

xclu

sio

n z

on

e, d

red

gin

g

will

cea

se u

nti

l th

e in

div

idu

al

has

mo

ved

ou

t o

f th

e 10

0 m

ex

clu

sio

n z

on

e o

r u

nti

l no

H

um

pb

ack

s o

r D

ug

on

g h

ave

be

en o

bse

rve

d w

ith

in t

his

zo

ne

for

10 m

inu

tes.

(Co

nt’

d)

62

Low

• M

arin

e m

amm

als

and

tu

rtle

s o

ccu

r in

lo

w d

ensi

ties

in

the

pro

po

sed

d

red

gin

g ar

ea

• N

o t

urt

le n

esti

ng

o

n b

each

es

ad

jace

nt

to

dre

dg

ing

area

• T

he

ad

op

tio

n o

f m

itig

atio

n

mea

sure

s su

ch

as f

aun

a o

bse

rver

s an

d

ob

serv

atio

n

zon

es

Rea

son

able

Sh

ort

-ter

m

mo

nit

ori

ng

dat

a av

aila

ble

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

O

6



A lo

oko

ut

will

be

mai

nta

ine

d,

• d

uri

ng

day

ligh

t h

ou

rs, f

or

Hu

mp

ba

cks

and

Du

go

ng

s w

hile

d

red

ge

are

mo

vin

g to

an

d fr

om

th

e d

red

ge

area

to

dre

dg

e m

ater

ial p

lace

men

t si

tes.

If

sig

hte

d, d

ire

ctio

n/s

pe

ed

will

be

ad

just

ed

to r

ed

uce

th

e lik

elih

oo

d o

f im

pa

ct (w

ith

in t

he

safe

ty c

on

stra

ints

of

the

vess

el)

An

y in

cid

ent

invo

lvin

g th

e in

jury

•

or

mo

rtal

ity

of

turt

les

will

be

rep

ort

ed

to t

he

DE

C a

nd

DE

WH

A

wit

hin

48

ho

urs

of

the

inci

den

t o

ccu

rrin

g

Mari

ne

Fau

na

Co

nst

ruct

ion

No

ise

and

V

ibra

tio

n•

Beh

avio

ura

l C

han

ges

, In

jury

or

Mo

rtal

ity

to

Mar

ine

Fau

na

Ass

oci

ate

d w

ith

B

last

ing

Low

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• If

bla

stin

g is

re

qu

ire

d, a

Bla

stin

g

En

viro

nm

enta

l Man

ag

emen

t P

lan

w

ill b

e d

evel

op

ed

• E

xam

ple

mit

igat

ion

s fo

r al

l bla

stin

g

act

ivit

ies

may

incl

ud

e:

Use

of

mar

ine

fau

na

ob

serv

ers

• to

co

nfi

rm t

hat

no

mam

mal

s an

d

turt

les

are

wit

hin

th

e vi

cin

ity

of

des

ign

ate

d fa

un

a ex

clu

sio

n

zon

es

54

Ver

y

Low

• B

last

ing

is

un

likel

y to

be

req

uir

ed

.

• If

re

qu

ire

d, s

ho

rt

term

in d

ura

tio

n.

• M

any

po

ten

tial

m

itig

atio

n

mea

sure

s to

re

du

ce im

pa

cts

to m

arin

e fa

un

a.

Low

Ava

ilab

le

info

rmat

ion

is

ina

de

qu

ate

Se

ctio

n 8

.4

Mari

ne

Fau

na

Op

erat

ion

sL

igh

t E

mis

sio

ns

(fro

m O

nsh

ore

In

fras

tru

ctu

re)

• A

ttra

ctio

n o

f m

arin

e tu

rtle

h

atch

ling

s

33

Mediu

m•

A p

relim

inar

y st

ud

y h

as s

ho

wn

th

at t

he

pla

nt

site

is o

f lo

w

sig

nifi

can

ce f

or

nes

tin

g

• R

efer

to

DS

DM

P a

nd

MF

MP

fo

r co

mp

lete

list

of

mit

igat

ion

m

easu

res

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• To

re

du

ce im

pa

cts

to t

urt

le

hat

chlin

gs,

lig

ht

spill

fro

m

con

stru

ctio

n a

nd

op

erat

ion

ves

sels

o

per

atin

g n

earb

y o

ffsh

ore

isla

nd

s an

d m

ain

lan

d b

each

es t

hat

su

pp

ort

m

arin

e tu

rtle

nes

tin

g w

ill b

e re

du

ced

, wh

ere

reas

on

ably

p

ract

icab

le

• T

he

Pro

po

nen

t w

ill m

on

ito

r o

nsh

ore

infr

astr

uct

ure

-at

trib

uta

ble

ch

ang

es t

o t

he

sea

-fin

din

g su

cces

s o

f m

arin

e tu

rtle

hat

chlin

gs

at r

oo

keri

es o

n

Ash

bu

rto

n Is

lan

d an

d at

th

e A

shb

urt

on

del

ta b

each

fo

r a

per

iod

to

be

det

erm

ine

d b

ase

d o

n t

he

init

ial m

on

ito

rin

g re

sult

s

• M

on

ito

rin

g w

ill b

e co

nd

uct

ed

d

uri

ng

con

stru

ctio

n, t

o c

oin

cid

e w

ith

pla

nn

ed

flar

ing

even

ts t

o

asse

ss t

he

effe

cts

of

this

act

ivit

y o

n h

atch

ling

beh

avio

ur,

p

arti

cula

rly

in r

elat

ion

to

th

eir

ori

enta

tio

n t

o t

he

bea

ch a

nd

se

a-fi

nd

ing

succ

ess

43

Low

• C

lose

st n

esti

ng

b

each

(A

shb

urt

on

D

elta

) is

> 4

km

fr

om

pla

nt

site

.

• C

lose

st is

lan

d

roo

kery

> 8

km

fr

om

pla

nt

site

.

• M

od

ellin

g

pre

dic

ts lo

w

leve

ls o

f ill

um

inat

ion

on

n

esti

ng

bea

ches

.

• A

shb

urt

on

Del

ta

nes

tin

g b

each

sc

reen

ed

by

hig

h

du

nes

.

• M

on

ito

rin

g w

ill

be

use

d to

tes

t p

red

icti

on

th

at

flar

ing

will

no

t n

eg

ativ

ely

infl

uen

ce

hat

chlin

gs.

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Tab

le 12

.6

Ap

pen

dix

S

1

3.0

A

pp

end

ix

O6



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Mari

ne

Fau

na

Op

erat

ion

sL

igh

t E

mis

sio

ns

(fro

m O

nsh

ore

In

fras

tru

ctu

re)

• In

terf

eren

ce w

ith

m

arin

e tu

rtle

n

esti

ng

beh

avio

r

33

Mediu

m•

A p

relim

inar

y st

ud

y h

as s

ho

wn

th

at t

he

pla

nt

site

is o

f lo

w

sig

nifi

can

ce f

or

nes

tin

g

• R

efer

to

DS

DM

P a

nd

MF

MP

fo

r co

mp

lete

list

of

mit

igat

ion

m

easu

res

• R

efer

to

Ch

apte

r 12

fo

r D

raft

OB

C

for

Mar

ine

Fau

na

Pro

tect

ion

• To

re

du

ce im

pa

cts

to t

urt

le

hat

chlin

gs,

lig

ht

spill

fro

m

con

stru

ctio

n a

nd

op

erat

ion

ves

sels

o

per

atin

g n

earb

y o

ffsh

ore

isla

nd

s an

d m

ain

lan

d b

each

es t

hat

su

pp

ort

m

arin

e tu

rtle

nes

tin

g w

ill b

e re

du

ced

, wh

ere

reas

on

ably

p

ract

icab

le

• T

he

Pro

po

nen

t w

ill m

on

ito

r o

nsh

ore

infr

astr

uct

ure

-at

trib

uta

ble

ch

ang

es t

o t

he

sea

-fin

din

g su

cces

s o

f m

arin

e tu

rtle

hat

chlin

gs

at r

oo

keri

es o

n

Ash

bu

rto

n Is

lan

d an

d at

th

e A

shb

urt

on

del

ta b

each

fo

r a

per

iod

to

be

det

erm

ine

d b

ase

d o

n t

he

init

ial m

on

ito

rin

g re

sult

s

• M

on

ito

rin

g w

ill b

e co

nd

uct

ed

d

uri

ng

con

stru

ctio

n, t

o c

oin

cid

e w

ith

pla

nn

ed

flar

ing

even

ts t

o

asse

ss t

he

effe

cts

of

this

act

ivit

y o

n h

atch

ling

beh

avio

ur,

p

arti

cula

rly

in r

elat

ion

to

th

eir

ori

enta

tio

n t

o t

he

bea

ch a

nd

se

a-fi

nd

ing

succ

ess

43

Low

• C

lose

st n

esti

ng

b

each

(A

shb

urt

on

D

elta

) is

> 4

km

fr

om

pla

nt

site

• C

lose

st is

lan

d

roo

kery

> 8

km

fr

om

pla

nt

site

• M

od

ellin

g

pre

dic

ts lo

w

leve

ls o

f ill

um

inat

ion

on

n

esti

ng

bea

ches

• A

shb

urt

on

Del

ta

nes

tin

g b

each

sc

reen

ed

by

hig

h

du

nes

• M

on

ito

rin

g w

ill

be

use

d to

tes

t p

red

icti

on

th

at

flar

ing

will

no

t n

eg

ativ

ely

infl

uen

ce

hat

chlin

gs

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Ch

apte

r 8

.4

Mari

ne

Fau

na

Op

erat

ion

sL

igh

t E

mis

sio

ns

(fro

m O

nsh

ore

In

fras

tru

ctu

re)

• A

ttra

ctio

n o

f se

abir

ds

crea

tin

g

po

ten

tial

fo

r in

crea

sed

p

red

atio

n o

f h

atch

ling

s

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• O

nsh

ore

infr

astr

uct

ure

loca

tio

n

sele

cte

d to

re

du

ce r

isks

to

cri

tica

l h

abit

at

43

Low

• N

o t

urt

le n

esti

ng

o

n b

each

es n

ear

the

pla

nt

site

• C

lose

st n

esti

ng

b

each

(A

shb

urt

on

D

elta

) is

> 4

km

fr

om

pla

nt

site

Rea

son

able

Mo

del

ling

co

nd

uct

ed

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4

Mari

ne

Fau

na

Ad

dit

ive

Eff

ect

s•

Th

e su

m o

f al

l p

ote

nti

al

Pro

ject

-at

trib

uta

ble

im

pa

cts

fro

m a

ll P

roje

ct p

has

es

and

asp

ect

s

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

ee

abo

ve f

or

pro

po

sed

m

ana

gem

ent/

mit

igat

ion

mea

sure

s4

2M

ediu

m•

Th

e ri

sk r

anki

ng

o

f th

e a

dd

itiv

e ef

fect

s o

f al

l P

roje

ct a

spe

cts

is d

eter

min

ed

by

the

hig

hes

t ri

sk

ran

kin

g o

f an

y in

div

idu

al a

spe

ct

Rea

son

able

No

si

gn

ifica

nt

imp

act

Se

ctio

n 8

.4



Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

s

• A

lter

atio

n o

f th

e en

tran

ce R

eg

ime

of

Ho

ole

y C

reek

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s.

• R

efer

to

Ch

apte

r 12

fo

r th

e O

BC

re

lati

ng

to C

oas

tal P

roce

sses

P

rote

ctio

n.

• M

ana

ge

con

stru

ctio

n a

nd

o

per

atio

n a

ctiv

itie

s to

re

du

ce, a

s fa

r as

pra

ctic

able

, nea

rsh

ore

in

fras

tru

ctu

re-a

ttri

bu

tab

le

imp

act

s o

n t

he

ph

ysic

al in

teg

rity

an

d fu

nct

ion

alit

y o

f co

asta

l p

roce

sses

at

Ho

ole

y C

reek

.

• M

itig

atio

n w

ill b

e in

stig

ate

d to

m

ain

tain

th

e in

teg

rity

of

the

entr

ance

re

gim

e o

f H

oo

ley

Cre

ek if

it

is d

eter

min

ed

that

th

e n

ears

ho

re

infr

astr

uct

ure

, no

t a

nat

ura

l ag

ent

of

dis

turb

ance

, was

th

e ca

use

of

the

des

tab

iliza

tio

n.

• M

itig

atio

n m

easu

res

may

incl

ud

e sa

nd

man

ag

emen

t co

nsi

stin

g o

f n

ou

rish

men

t o

f th

e fe

atu

res.

(N

ou

rish

men

t is

th

e p

roce

ss o

f p

laci

ng

or

pu

mp

ing

san

d fr

om

el

sew

her

e o

nto

an

ero

din

g fe

atu

re

to r

esh

ape

the

exis

tin

g b

each

).

• A

dap

tive

mo

nit

ori

ng

pro

gra

m t

o

mo

nit

or

chan

ges

to

th

e sp

it w

idth

at

Ho

ole

y C

reek

an

d al

l en

tran

ce

bar

s fr

om

Ash

bu

rto

n R

iver

en

tran

ce t

o B

ead

on

Cre

ek.

• T

he

Pro

po

nen

t to

pre

par

e an

an

nu

al c

oas

tal p

roce

sses

m

on

ito

rin

g re

po

rt. T

his

rep

ort

sh

all b

e m

ad

e av

aila

ble

to

rel

evan

t a

gen

cies

.

42

Mediu

m•

Wit

ho

ut

san

d

sup

ply

fro

m t

he

wes

t, t

he

exis

tin

g sp

it

wo

uld

ero

de

ove

r ap

pro

xim

atel

y 5

-10

yea

rs

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Tab

le 12

.3

Ap

pen

dix

T

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

s

• E

rosi

on

of

Su

nse

t B

each

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• M

ana

ge

con

stru

ctio

n a

nd

o

per

atio

n a

ctiv

itie

s to

re

du

ce, a

s fa

r as

pra

ctic

able

, nea

rsh

ore

in

fras

tru

ctu

re-a

ttri

bu

tab

le

imp

act

s o

n t

he

ph

ysic

al in

teg

rity

of

coas

tal p

roce

sses

an

d fu

nct

ion

alit

y at

Su

nse

t B

each

• M

itig

atio

n w

ill b

e in

stig

ate

d to

m

ain

tain

th

e in

teg

rity

of

Su

nse

t B

each

if it

is d

eter

min

ed

that

th

e n

ears

ho

re in

fras

tru

ctu

re, n

ot

a n

atu

ral a

gen

t o

f d

istu

rban

ce, w

as

the

cau

se o

f th

e er

osi

on

. Mit

igat

ion

m

easu

res

may

incl

ud

e b

each

n

ou

rish

men

t

• A

dap

tive

mo

nit

ori

ng

pro

gra

m t

o

mo

nit

or

chan

ges

to

bea

ch p

rofi

le

and

wid

th

• T

he

Pro

po

nen

t to

pre

par

e an

an

nu

al c

oas

tal p

roce

sses

m

on

ito

rin

g re

po

rt. T

his

rep

ort

sh

all b

e m

ad

e av

aila

ble

to

rel

evan

t a

gen

cies

53

Low

• S

tru

ctu

ral

con

tro

l at

Bea

do

n P

oin

t lim

its

the

po

ten

tial

fo

r er

osi

on

as

a d

ire

ct r

esu

lt o

f re

du

ced

san

d

sup

ply

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Ap

pen

dix

T

1

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

s

• E

rosi

on

of

On

slo

w

Tow

n B

each

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• R

efer

to

Dis

rup

tio

n o

f n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

: Ero

sio

n o

f S

un

set

Bea

ch a

bo

ve

43

Low

• T

he

stru

ctu

rally

co

ntr

olle

d

nat

ure

of

this

b

each

d

eter

min

es t

hat

a

loss

of

sup

ply

w

ou

ld n

ot

cau

se

ero

sio

n

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Ap

pen

dix

T

1



Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

s

• D

esta

bili

sati

on

of

Ash

bu

rto

n E

ast

chen

ier

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• R

efer

to

Ch

apte

r 12

fo

r th

e O

BC

re

lati

ng

to C

oas

tal P

roce

sses

P

rote

ctio

n

• M

ana

ge

con

stru

ctio

n a

nd

o

per

atio

n a

ctiv

itie

s to

re

du

ce, a

s fa

r as

pra

ctic

able

, nea

rsh

ore

in

fras

tru

ctu

re-a

ttri

bu

tab

le

imp

act

s o

n t

he

ph

ysic

al in

teg

rity

an

d fu

nct

ion

alit

y o

f co

asta

l p

roce

sses

at

the

Eas

t A

shb

urt

on

D

elta

• M

ana

ge

the

volu

me

of

po

ten

tial

u

pd

rift

cap

ture

of

sed

imen

ts o

n

the

wes

t si

de

of

the

MO

F b

reak

wat

ers

• M

itig

atio

n w

ill b

e in

stig

ate

d to

m

ain

tain

th

e in

teg

rity

of

the

Ash

bu

rto

n E

ast

chen

ier

if it

is

det

erm

ine

d th

at t

he

nea

rsh

ore

in

fras

tru

ctu

re, n

ot

a n

atu

ral a

gen

t o

f d

istu

rban

ce, w

as t

he

cau

se o

f th

e d

esta

bili

sati

on

• S

and

man

ag

emen

t co

nsi

stin

g o

f n

ou

rish

men

t o

f th

e ch

enie

r

• A

dap

tive

mo

nit

ori

ng

pro

gra

m t

o

mo

nit

or

chan

ges

to

Ash

bu

rto

n

Eas

t ch

enie

r w

idth

• T

he

Pro

po

nen

t to

pre

par

e an

an

nu

al c

oas

tal p

roce

sses

m

on

ito

rin

g re

po

rt. T

his

rep

ort

sh

all b

e m

ad

e av

aila

ble

to

rel

evan

t a

gen

cies

34

Low

• M

OF

bre

akw

ater

s ar

e lik

ely

to h

ave

ne

glig

ible

eff

ect

o

n o

ng

oin

g

sed

imen

t tr

ansp

ort

to

th

e w

est

of

the

MO

F

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Tab

le 12

.3

Ap

pen

dix

T

1

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e cy

clo

nic

lit

tora

l se

dim

ent

pat

hs

• A

lter

atio

n o

f th

e en

tran

ce R

eg

ime

of

Ho

ole

y C

reek

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• R

efer

to

Ch

apte

r 12

fo

r th

e O

BC

re

lati

ng

to C

oas

tal P

roce

sses

P

rote

ctio

n

• R

efer

to

Dis

rup

tio

n o

f n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

: En

tran

ce

Re

gim

e o

f H

oo

ley

Cre

ek a

bo

ve

42

Mediu

m•

Eas

twar

d

do

wn

dri

ft

ero

sio

n w

ill

cau

se m

assi

ve

chan

ge

to t

he

entr

ance

m

orp

ho

log

y in

th

e ev

ent

of

a si

gn

ifica

nt

cycl

on

e

• S

imila

r im

pa

cts

hav

e o

ccu

rre

d

ove

r an

his

tori

c p

erio

d

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Tab

le 12

.3

Ap

pen

dix

T

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o

resi

du

al r

isk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e cy

clo

nic

lit

tora

l se

dim

ent

pat

hs

• E

rosi

on

of

Su

nse

t B

each

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• R

efer

to

Dis

rup

tio

n o

f n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

: Ero

sio

n o

f S

un

set

Bea

ch a

bo

ve

52

Low

• In

th

e ev

ent

of

a cy

clo

ne

imp

act

s to

Su

nse

t B

each

w

ill o

nly

be

slig

htl

y in

crea

sed

• T

he

exis

tin

g

bea

ch is

su

ffici

entl

y w

ide

to w

ith

stan

d

seve

re c

yclo

ne

imp

act

, an

d to

re

cove

r

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Ap

pen

dix

T

1

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e cy

clo

nic

lit

tora

l se

dim

ent

pat

hs

• E

rosi

on

of

On

slo

w

Tow

n B

each

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• R

efer

to

Dis

rup

tio

n o

f n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

: Ero

sio

n o

f O

nsl

ow

To

wn

Bea

ch a

bo

ve

42

Mediu

m•

Inte

rru

pti

on

of

the

no

n-c

yclo

nic

lit

tora

l tra

nsp

ort

p

ath

will

slo

w

bea

ch r

eco

very

fo

llow

ing

an

ero

sio

n e

ven

t

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Ap

pen

dix

T

1

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f N

ears

ho

re

Infr

astr

uct

ure

• In

terr

up

tio

n o

f th

e cy

clo

nic

lit

tora

l se

dim

ent

pat

hs

• D

esta

bili

sati

on

of

Ash

bu

rto

n E

ast

chen

ier

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• R

efer

to

Ch

apte

r 12

fo

r th

e O

BC

re

lati

ng

to C

oas

tal P

roce

sses

P

rote

ctio

n

• R

efer

to

Dis

rup

tio

n o

f n

on

-cyc

lon

ic

litto

ral s

ed

imen

t p

ath

: D

esta

bili

sati

on

of

Ash

bu

rto

n E

ast

chen

ier

33

Mediu

m•

Du

e to

MO

F b

reak

wat

ers,

d

ow

nd

rift

er

osi

on

may

fo

cus

on

th

e ch

enie

r u

nd

er

cycl

on

ic

pre

ssu

re

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Tab

le 12

.3

Ap

pen

dix

T

1

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f O

nsh

ore

In

fras

tru

ctu

re

• D

isru

pti

on

of

flu

vial

pat

hw

ay

• A

shb

urt

on

Riv

er

Ch

ann

el A

vuls

ion

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• R

efer

to

Ch

apte

r 12

fo

r th

e O

BC

re

lati

ng

to C

oas

tal P

roce

sses

P

rote

ctio

n

• M

ana

ge

con

stru

ctio

n a

nd

o

per

atio

n a

ctiv

itie

s to

re

du

ce, a

s fa

r as

pra

ctic

able

, nea

rsh

ore

in

fras

tru

ctu

re-a

ttri

bu

tab

le

imp

act

s o

n t

he

ph

ysic

al in

teg

rity

an

d fu

nct

ion

alit

y o

f th

e fl

uvi

al

pat

hw

ay o

f th

e A

shb

urt

on

Riv

er

• M

itig

atio

n w

ill b

e in

stig

ate

d to

m

ain

tain

th

e in

teg

rity

of

the

flu

vial

p

ath

way

of

the

Ash

bu

rto

n R

iver

if

it is

det

erm

ine

d th

at t

he

nea

rsh

ore

in

fras

tru

ctu

re, n

ot

a n

atu

ral a

gen

t o

f d

istu

rban

ce, w

as t

he

cau

se o

f th

e d

isru

pti

on

(Co

nt’

d)

54

Ver

y

Low

• T

he

seq

uen

ce o

f ev

ents

th

at w

ill

red

uce

hyd

rau

lic

resi

stan

ce o

f th

e b

reak

ou

t p

ath

way

are

u

nlik

ely

to o

ccu

r

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Tab

le 12

.3

Ap

pen

dix

T

1



• M

ana

ge

Pro

ject

-att

rib

uta

ble

se

dim

enta

tio

n d

uri

ng

con

stru

ctio

n

• C

han

nel

cro

ss-s

ect

ion

mo

nit

ori

ng

• T

he

Pro

po

nen

t to

pre

par

e an

an

nu

al c

oas

tal p

roce

sses

m

on

ito

rin

g re

po

rt. T

his

rep

ort

sh

all b

e m

ad

e av

aila

ble

to

rel

evan

t a

gen

cies

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sC

on

stru

ctio

n o

f O

nsh

ore

In

fras

tru

ctu

re

• In

crea

sed

flo

ws

thro

ug

h c

han

nel

(i

ncl

ud

es

dra

ina

ge)

• R

eact

ivat

ion

of

pal

ae

och

ann

els

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• M

ana

ge

con

stru

ctio

n a

nd

o

per

atio

n a

ctiv

itie

s to

re

du

ce, a

s fa

r as

pra

ctic

able

, nea

rsh

ore

in

fras

tru

ctu

re-a

ttri

bu

tab

le

imp

act

s o

n t

he

ph

ysic

al in

teg

rity

an

d fu

nct

ion

alit

y o

f th

e fl

uvi

al

pat

hw

ay o

f th

e A

shb

urt

on

Riv

er

• C

han

nel

cro

ss-s

ect

ion

mo

nit

ori

ng

• T

he

Pro

po

nen

t to

pre

par

e an

an

nu

al c

oas

tal p

roce

sses

m

on

ito

rin

g re

po

rt. T

his

rep

ort

sh

all b

e m

ad

e av

aila

ble

to

rel

evan

t a

gen

cies

54

Ver

y

Low

• R

eact

ivti

atio

n

has

low

en

viro

nm

enta

l co

nse

qu

ence

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

8.5

Tab

le 12

.3

Ap

pen

dix

T

1

Coast

al

Pro

cess

esC

on

stru

ctio

n

and

Op

erat

ion

sE

xcav

atio

n o

f b

orr

ow

pit

s•

Lo

ss o

f g

eo

log

ical

h

erit

ag

e fe

atu

res

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

efer

to

CP

MP

fo

r co

mp

lete

list

of

mit

igat

ion

mea

sure

s

• F

ield

su

rvey

s to

be

un

der

take

n t

o

con

firm

, wh

ere

pra

ctic

able

, th

e g

eo

log

ical

her

ita

ge

valu

e o

f th

e P

roje

ct a

rea

and

iden

tify

fea

ture

s re

qu

irin

g p

rote

ctio

n

• D

uri

ng

bo

rro

w p

it e

xcav

atio

n,

mit

igat

ion

will

be

imp

lem

ente

d to

re

du

ce p

ote

nti

al im

pa

cts

to, a

nd

to

pro

tect

, th

ese

feat

ure

s as

re

aso

nab

ly p

ract

icab

le

44

Low

• G

eo

log

ical

h

erit

ag

e fe

atu

res

exis

t in

th

e P

roje

ct a

rea

and

req

uir

e p

rote

ctio

n;

ho

wev

er

mit

igat

ion

m

easu

res

will

be

pu

t in

pla

ce t

o

red

uce

d

istu

rban

ce o

f th

ese

feat

ure

s

Low

No

su

rvey

dat

a

No

t A

pp

licab

leS

ect

ion

8.5

Ap

pen

dix

T

1

Coast

al

Pro

cess

esA

dd

itiv

e E

ffe

cts

• T

he

sum

of

all

po

ten

tial

P

roje

ct-

attr

ibu

tab

le

imp

act

s fr

om

all

Pro

ject

ph

ases

an

d as

pe

cts

—N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

ee

abo

ve f

or

pro

po

sed

m

ana

gem

ent/

mit

igat

ion

mea

sure

s5

1M

ediu

m•

Th

e ri

sk r

anki

ng

o

f th

e a

dd

itiv

e ef

fect

s o

f al

l P

roje

ct a

spe

cts

is d

eter

min

ed

by

the

hig

hes

t ri

sk

ran

kin

g o

f an

y in

div

idu

al a

spe

ct

Lo

w

No

mo

del

ling

co

nd

uct

ed

on

a

dd

itiv

e ef

fect

s

No

t A

pp

licab

le8

.5



Table

1.6

: Ter

rest

rial R

isk

Ass

essm

ent

Su

mm

ary

For

det

ails

on

th

e ri

sk r

anki

ng

pro

ced

ure

, in

clu

din

g co

nse

qu

ence

an

d lik

elih

oo

d d

efin

itio

ns

spec

ific

to e

ach

fac

tor,

ref

er t

o C

hap

ter

7, Im

pac

t A

sses

smen

t M

eth

od

olo

gy

and

C

hap

ter

9, T

erre

stri

al R

isk

Ass

essm

ent

and

Man

agem

ent.

No

te t

hat

“C

” re

fers

to

Co

nse

qu

ence

an

d “L

” re

fers

to

Lik

elih

oo

d.

Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Soils

&

Lan

dfo

rms

Co

nst

ruct

ion

E

arth

wo

rks

• D

eg

rad

atio

n o

f so

il q

ual

ity

thro

ug

h t

he

dis

turb

ance

of

PA

SS

(i.e

. aci

dit

y an

d h

eavy

met

als)

• S

oil

ero

sio

n d

ue

to

gro

un

d

dis

turb

ance

(i.e

. w

ind

and

wat

er)

42

Mediu

m•

Ran

kin

g b

ase

d o

n

po

ten

tial

ph

ysic

al

chan

ges

to

H

oo

ley

• C

reek

an

d

Ash

bu

rto

n R

iver

D

elta

• A

SS

is n

ot

con

sid

ere

d to

be

a si

gn

ifica

nt

risk

to

th

e te

rres

tria

l en

viro

nm

ent

• H

ealt

h is

sues

as

soci

ate

d w

ith

m

osq

uit

oes

an

d

the

des

ign

of

any

sto

rmw

ater

p

on

ds

will

be

inve

stig

ate

d an

d

con

tro

ls w

ill b

e in

corp

ora

ted

into

th

e d

esig

n

• M

ana

gem

ent

of

PA

SS

mat

eria

l u

tilis

ing

bes

t p

ract

ice

met

ho

ds,

as

ou

tlin

ed

in t

he

CE

MP

• R

ed

uce

du

st g

ener

atio

n t

hro

ug

h

app

licat

ion

of

sup

pre

ssan

t o

r so

il st

abili

ser

• In

stal

lati

on

of

ero

sio

n c

on

tro

l an

d

flo

w d

iver

sio

n d

evic

es if

re

qu

ire

d

52

Low

• P

roje

ct a

rea

has

b

een

refi

ne

d to

lim

it im

pa

cts

to

Ho

ole

y C

reek

an

d

Ash

bu

rto

n R

iver

D

elta

• T

he

Pro

ject

are

a g

ener

ally

has

a

low

ris

k o

f en

cou

nte

rin

g

PA

SS

mat

eria

l

• H

ealt

h is

sues

are

as

sess

ed

in s

oci

al

imp

act

s se

ctio

n

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d d

ue

to

the

exca

vati

on

of

the

bo

rro

w s

ites

b

ein

g lik

ely

to le

ad

to

th

e m

ino

r er

osi

on

or

loss

of

loca

l lan

dfo

rms

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

Gu

idan

ce.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

9

.2.5

.1

Ap

pen

dix

U

1

Soils

&

Lan

dfo

rms

Op

erat

ion

sE

arth

wo

rks

and

M

ain

ten

ance

• D

eg

rad

atio

n o

f so

il q

ual

ity

thro

ug

h t

he

dis

turb

ance

of

PA

SS

(i.e

. aci

dit

y an

d h

eavy

met

als)

• S

oil

ero

sio

n

du

e to

gro

un

d

dis

turb

ance

(i.e

. w

ind

and

wat

er)

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• M

ana

gem

ent

of

PA

SS

mat

eria

l u

tilis

ing

bes

t p

ract

ice

met

ho

ds,

to

b

e o

utl

ine

d in

th

e O

EM

P

• R

ed

uce

du

st g

ener

atio

n t

hro

ug

h

app

licat

ion

of

sup

pre

ssan

t o

r so

il st

abili

ser

• In

stal

lati

on

of

ero

sio

n c

on

tro

l an

d

flo

w d

iver

sio

n d

evic

es if

re

qu

ire

d

64

Ver

y

Low

• In

cid

enta

l ea

rth

wo

rks

asso

ciat

ed

wit

h

on

go

ing

o

per

atio

ns

of

the

LN

G p

lan

t fa

cilit

y an

d m

ain

ten

ance

w

ork

s w

ill b

e re

qu

ire

d

thro

ug

ho

ut

the

life

of

the

Pro

ject

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

u

nlik

ely

that

th

e o

per

atio

nal

ea

rth

wo

rks

and

m

ain

ten

ance

will

le

ad

to lo

calis

ed

an

d sh

ort

–te

rm

dis

turb

ance

s to

w

ell r

epre

sen

ted

la

nd

form

s.

Furt

her

mo

re, a

ny

dis

turb

ance

s ca

n

be

rea

dily

re

me

dia

ted

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

Gu

idan

ce.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

9

.2.5

.2



Soils

&

Lan

dfo

rms

Co

nst

ruct

ion

an

d O

per

atio

ns

Lea

ks &

Sp

ills-

Sto

rag

e,

han

dlin

g an

d

tran

spo

rt

• D

eg

rad

atio

n o

f so

il q

ual

ity

du

e to

h

ydro

carb

on

s sp

ills

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

pp

rop

riat

e d

esig

n, c

on

stru

ctio

n

and

mai

nte

nan

ce o

f st

ora

ge,

h

and

ling

and

tran

sfer

in

fras

tru

ctu

re

• A

ris

k-b

ase

d in

teg

rity

ass

ura

nce

p

rog

ram

fo

r st

ora

ge

vess

els

and

p

ipel

ines

• A

de

qu

ate

and

app

rop

riat

e em

erg

ency

res

po

nse

cap

abili

ty

• S

pill

res

po

nse

pro

ced

ure

s an

d

trai

nin

g im

ple

men

tati

on

34

Low

• L

eaks

an

d sp

ills

are

mo

st li

kely

to

o

ccu

r in

as

soci

atio

n w

ith

p

ipel

ine

or

eq

uip

men

t fa

ilure

, st

ora

ge

and

h

and

ling

of

pro

du

ct, f

uel

s an

d

chem

ical

s, w

aste

st

ora

ge

and

d

isp

osa

l

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d b

y as

sess

ing

the

imp

act

s o

f a

maj

or

on

sho

re s

pill

or

leak

. It

is

anti

cip

ate

d th

at,

wit

h t

he

ad

op

tio

n

of

man

ag

emen

t co

ntr

ols

an

d

mit

igat

ion

m

easu

res,

th

is

even

t w

ou

ld b

e “U

nlik

ely”

, bu

t co

uld

per

ceiv

ably

b

e o

f “M

ajo

r”

con

seq

uen

ce

Hig

h

Sev

eral

exp

ert

inve

stig

atio

ns/

stu

die

s.

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.2.5

.3

Ad

dit

ive

Eff

ect

s•

All

of

the

abo

ve-

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• A

ll o

f th

e ab

ove

52

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

th

e P

roje

ct w

ill le

ad

to

loca

l so

il co

nta

min

atio

n

that

can

be

rea

dily

re

me

dia

ted

; min

or

imp

act

s to

sp

eci

fic

soil

char

act

eris

tics

, an

d m

ino

r er

osi

on

o

r lo

ss o

f lo

cal

lan

dfo

rms

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

9

.2.8



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Gro

un

dw

ate

rC

on

stru

ctio

n

Ear

thw

ork

s-

Dre

dg

e M

ater

ial

Pla

cem

ent

Are

as

• M

ou

nd

ing

of

the

wat

er t

able

• A

lter

ed

salt

lo

ad

ing

s to

th

e w

ater

tab

le

• S

eep

ag

e fr

om

th

e p

lace

men

t ar

ea

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• T

he

pla

cem

ent

area

has

be

en

sele

cte

d to

re

du

ce t

he

foo

tpri

nt

use

d

• D

red

ge

d m

ater

ial w

ill b

e co

nta

ine

d

in a

bu

nd

ed

area

Wh

ere

pra

ctic

able

, pla

cem

ent

in t

he

east

ern

hal

f o

f th

e p

lace

men

t ar

ea

will

be

pre

ferr

ed

to li

mit

wat

er

leve

ls in

(an

d se

epa

ge

fro

m)

the

wes

tern

hal

f o

f th

e p

lace

men

t ar

ea

• B

un

ds

will

be

des

ign

ed

to w

ith

stan

d

ero

sio

n d

uri

ng

inu

nd

atio

n e

ven

ts

• D

isch

arg

e o

f d

eca

nt

wat

er d

uri

ng

th

e fi

rst

18-2

4 m

on

ths

will

be

pu

mp

ed

via

pip

elin

e to

a m

arin

e o

utf

all

• In

stal

lati

on

of

a d

rain

ag

e d

itch

to

co

llect

an

d d

iver

t se

epa

ge

• G

rou

nd

wat

er m

on

ito

rin

g

42

Mediu

m•

Th

e p

lace

men

t o

f m

ater

ial i

nto

th

e si

tes

will

pro

mo

te

trap

pin

g o

f fi

nes

in

th

e se

ttle

d

mat

eria

l an

d

red

uce

th

e am

ou

nts

of

fin

es

in s

usp

ensi

on

• D

rain

ag

e o

f d

eca

nt

wat

er o

ver

the

pla

cem

ent

area

will

be

to t

he

sou

th a

way

fro

m

the

Ash

bu

rto

n

Del

ta

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

th

e o

nsh

ore

p

lace

men

t o

f d

red

ge

d m

ater

ial

will

lea

d to

a lo

cal

and

maj

or

chan

ge

in s

ub

-cat

chm

ent

gro

un

dw

ater

re

char

ge

pat

tern

s o

ver

a lo

cal a

rea

ove

r th

e lo

ng

term

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce.

Sh

ort

ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

9

.3.5

.1

Gro

un

dw

ate

rC

on

stru

ctio

n

and

Op

erat

ion

sP

rese

nce

of

Infr

astr

uct

ure

- P

rese

nce

of

Pla

nt

Pad

, A

cces

s R

oad

, In

fras

tru

ctu

re

Co

rrid

or

and

A

cco

mm

o-

dat

ion

Vill

age

area

• G

rou

nd

wat

er

mo

un

din

g

• C

han

ge

in

gro

un

dw

ater

flo

w

dir

ect

ion

s

• C

han

ge

in

gro

un

dw

ater

q

ual

ity

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• M

on

ito

rin

g b

ore

s 4

4L

ow

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

u

nlik

ely

that

th

e p

rese

nce

of

the

infr

astr

uct

ure

will

le

ad

to lo

cal a

nd

m

ajo

r ch

ang

e in

su

b-c

atch

men

t g

rou

nd

wat

er

rech

arg

e p

atte

rns

ove

r a

loca

l are

a o

ver

the

lon

g te

rm

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce.

Sh

ort

ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

9

.3.5

.2



Gro

un

dw

ate

rO

per

atio

nO

per

atio

nal

S

pill

s an

d

Lea

ks a

nd

S

torm

wat

er

run

-off

• C

han

ges

to

qu

alit

y o

f g

rou

nd

wat

er3

3M

ediu

m•

Th

is a

ssu

mes

b

enefi

cial

use

s as

w

ell a

s an

e

colo

gic

al v

alu

e as

soci

ate

d w

ith

th

e g

rou

nd

wat

er

reso

urc

es

• A

pp

rop

riat

e d

esig

n, c

on

stru

ctio

n

and

mai

nte

nan

ce o

f st

ora

ge,

h

and

ling

and

tran

sfer

in

fras

tru

ctu

re

• A

re

gu

lar

test

ing

pro

gra

m f

or

sto

rag

e ve

ssel

s an

d p

ipel

ines

• A

de

qu

ate

and

app

rop

riat

e em

erg

ency

res

po

nse

cap

abili

ty

• S

pill

res

po

nse

pro

ced

ure

s an

d

trai

nin

g

• Im

ple

men

tati

on

of

app

rop

riat

e tr

eatm

ent

and

/or

reh

abili

tati

on

te

chn

iqu

es w

her

e si

gn

ifica

nt

imp

act

s to

gro

un

dw

ater

occ

urs

• M

ana

gem

ent

con

tro

ls w

ill b

e im

ple

men

ted

as p

art

of

the

CE

MP

an

d th

e O

EM

P

44

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d b

y as

sess

ing

the

imp

act

s o

f a

maj

or

on

sho

re s

pill

or

leak

. It

is

anti

cip

ate

d th

at,

wit

h t

he

ad

op

tio

n

of

man

ag

emen

t co

ntr

ols

an

d

mit

igat

ion

m

easu

res,

th

is

even

t w

ou

ld b

e “U

nlik

ely”

, bu

t co

uld

per

ceiv

ably

b

e o

f “M

od

erat

e”

con

seq

uen

ce

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce.

Sh

ort

ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

9

.3.5

.3

Ap

pen

dix

U

1

Gro

un

dw

ate

rA

dd

itiv

e E

ffe

cts

• A

ll o

f th

e ab

ove

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

ll o

f th

e ab

ove

42

Mediu

m•

Ad

dit

ive

risk

ra

nki

ng

is b

ase

d

on

th

e h

igh

est

risk

–

imp

act

s to

g

rou

nd

wat

er f

rom

th

e o

nsh

ore

d

red

ge

pla

cem

ent

area

op

tio

n

• T

he

Pro

ject

is

con

sid

ere

d to

hav

e an

ove

rall

me

diu

m

resi

du

al r

isk

of

sig

nifi

can

t im

pa

ct

on

gro

un

dw

ater

af

ter

the

imp

lem

enta

tio

n o

f ap

pro

pri

ate

mit

igat

ion

co

ntr

ols

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce

Sh

ort

-ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

9

.3.8



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Su

rface

W

ate

rC

on

stru

ctio

n

Ear

thw

ork

s-

Cle

arin

g an

d

Dis

turb

ance

of

Su

rfa

ce S

oils

• In

crea

sed

run

off

an

d er

osi

on

• In

crea

sed

mo

bili

ty

of

sed

imen

ts

• In

crea

sed

se

dim

ent

loa

ds

and

sed

imen

t co

nce

ntr

atio

ns

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

on

tro

l mea

sure

s m

ay in

clu

de

eng

ine

erin

g so

luti

on

s su

ch a

s p

erim

eter

bu

nd

s an

d cu

lver

ts,

sed

imen

tati

on

po

nd

s, u

se o

f si

lt

fen

ces

and

pla

cem

ent

of

rock

at

the

surf

ace

wat

er r

elea

se p

oin

ts

• A

sys

tem

of

dra

ins

will

be

con

stru

cte

d to

div

ert

run

off

fro

m

the

Pla

nt

Pa

d to

sto

rm w

ater

se

dim

enta

tio

n p

on

ds

52

Low

• S

urf

ace

wat

er in

th

e lo

cal

envi

ron

men

t is

re

gu

larl

y tu

rbid

; a

cco

rdin

gly

it m

ay

be

assu

me

d th

at

thes

e h

abit

ats

are

resi

lien

t to

p

ote

nti

al im

pa

cts

fro

m s

ed

imen

t in

st

ream

flo

w a

nd

ti

dal

rea

ches

of

the

loca

l w

ater

cou

rse

• T

he

resi

du

al r

isk

ran

kin

g w

as

ob

tain

ed

as it

is

likel

y th

at m

ino

r ch

ang

es t

o lo

cal

wat

er r

eso

urc

es,

may

res

ult

in lo

cal

sho

rt-t

erm

an

d

smal

l re

du

ctio

n in

w

ater

qu

alit

y w

ith

n

o e

xce

ed

ence

of

bas

elin

e w

ater

q

ual

ity

leve

ls

Rea

son

able

Sh

ort

ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

le9

.4.5

.1

Su

rface

W

ate

rC

on

stru

ctio

nD

red

ge

Mat

eria

l P

lace

men

t A

rea

• C

han

ges

to

su

rfa

ce w

ater

q

ual

ity

and

q

uan

tity

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• T

he

pla

cem

ent

area

has

be

en

sele

cte

d to

re

du

ce t

he

foo

tpri

nt

use

d.

• D

red

ge

d m

ater

ial w

ill b

e co

nta

ine

d

in a

bu

nd

ed

area

• W

her

e p

ract

icab

le, p

lace

men

t in

th

e ea

ster

n h

alf

of

the

pla

cem

ent

area

will

be

pre

ferr

ed

to li

mit

wat

er

leve

ls in

(an

d se

epa

ge

fro

m)

the

wes

tern

hal

f o

f th

e p

lace

men

t ar

ea

• B

un

ds

will

be

des

ign

ed

to w

ith

stan

d

ero

sio

n d

uri

ng

inu

nd

atio

n e

ven

ts

• D

isch

arg

e o

f d

eca

nt

wat

er d

uri

ng

th

e fi

rst

18-2

4 m

on

ths

will

be

pu

mp

ed

via

pip

elin

e to

a m

arin

e o

utf

all

• In

stal

lati

on

of

a d

rain

ag

e d

itch

to

co

llect

an

d d

iver

t se

epa

ge

• S

urf

ace

wat

er m

on

ito

rin

g

42

Mediu

m•

Imp

act

s to

mar

ine

envi

ron

men

t fr

om

n

ears

ho

re d

eca

nt

wat

er d

isp

osa

l d

iscu

sse

d an

d

asse

sse

d in

C

hap

ter

8

• Im

pa

cts

to

surf

ace

wat

er m

ay

no

t b

e m

easu

rab

le

• T

he

dre

dg

e m

ater

ial i

s in

ert,

th

us

the

seaw

ater

w

ou

ld n

ot

acc

um

ula

te

dis

solv

ed

salt

s ex

cep

t b

y ev

apo

rati

on

p

roce

sses

(Co

nt’

d)

Rea

son

able

Sh

ort

ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e.

No

t A

pp

licab

leS

ect

ion

9

.4.5

.2



• T

he

resi

du

al r

isk

ran

kin

g w

as

ob

tain

ed

as it

is

likel

y th

at lo

cal

and

maj

or

chan

ge

in s

ub

-cat

chm

ent

surf

ace

wat

er

hyd

rolo

gy

and

fl

ow

re

gim

es o

ver

a lo

cal a

rea

ove

r th

e lo

ng

term

w

ou

ld o

ccu

r

Su

rface

W

ate

rC

on

stru

ctio

nP

ote

nti

al

Oxi

dat

ion

of

Aci

d S

ulf

ate

So

ils

• O

xid

atio

n

resu

ltin

g in

g

ener

atio

n o

f a

cid

an

d/o

r m

ob

ilisa

tio

n o

f m

etal

s

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• In

form

wo

rkfo

rce

of

the

nat

ure

an

d

po

ten

tial

imp

act

s o

f P

AS

S

• R

evie

w P

AS

S R

isk

Map

to

asc

erta

in

wh

eth

er P

AS

S w

ill b

e d

istu

rbe

d

• A

void

th

e d

istu

rban

ce o

f P

AS

S

wh

ere

po

ssib

le

• R

efer

to

th

e C

EM

P f

or

trea

tmen

t an

d d

isp

osa

l str

ate

gie

s w

hen

d

istu

rban

ce is

un

avo

idab

le

• M

ana

gem

ent

of

PA

SS

mat

eria

l u

tilis

ing

bes

t m

ana

gem

ent

pra

ctic

e m

eth

od

s, a

s o

utl

ine

d in

th

e C

EM

P

53

Low

• T

he

resi

du

al r

isk

ran

kin

g w

as

ob

tain

ed

as it

is

po

ssib

le t

hat

m

ino

r ch

ang

es t

o

loca

l wat

er

reso

urc

es,

resu

ltin

g in

a lo

cal

sho

rt-t

erm

an

d

smal

l re

du

ctio

n in

w

ater

qu

alit

y, w

ith

n

o e

xce

ed

ence

of

bas

elin

e w

ater

q

ual

ity,

co

uld

o

ccu

r

Hig

h

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.4.5

.3

Ap

pen

dix

U

1

Su

rface

W

ate

rO

per

atio

nP

rese

nce

of

the

Faci

litie

s•

Ch

ang

es t

o fl

oo

d

dep

ths

and

flo

od

el

evat

ion

s

• C

han

ges

to

str

eam

fl

ow

per

iod

s an

d

pea

k d

isch

arg

es

• C

han

ges

to

str

eam

fl

ow

vel

oci

ties

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• Fa

cilit

ies

des

ign

ed

to li

mit

imp

act

s to

su

rfa

ce w

ater

sys

tem

s

• C

ulv

erts

are

inco

rpo

rate

d in

to t

he

hyd

rod

ynam

ic fl

ow

mo

del

fo

r d

rain

ag

e cr

oss

ing

s tr

aver

sed

by

the

roa

d an

d in

fras

tru

ctu

re c

orr

ido

r

52

Low

• F

loo

d m

od

ellin

g

pre

dic

ts t

hat

ch

ang

es t

o fl

oo

d

dep

ths

and

el

evat

ion

s m

ay n

ot

be

mea

sura

ble

• T

he

Res

idu

al r

isk

to s

urf

ace

wat

er

fro

m t

he

pre

sen

ce

of

faci

litie

s w

as

ob

tain

ed

as it

is

likel

y th

at lo

cal

and

min

or

chan

ge

in s

ub

-cat

chm

ent

surf

ace

wat

er

hyd

rolo

gy

and

fl

ow

re

gim

es c

ou

ld

occ

ur

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

9

.4.5

.4

Su

rface

W

ate

rO

per

atio

ns

Sp

ills

and

L

eaks

• C

han

ges

to

su

rfa

ce w

ater

q

ual

ity

- N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• P

rim

ary

and

seco

nd

ary

con

tain

men

t, w

her

e ap

pro

pri

ate

• L

oa

din

g al

arm

s

• Tr

eatm

ent

of

was

te w

ater

at

sou

rce

• M

on

ito

rin

g o

f sy

stem

s fo

r ea

rly

spill

d

ete

ctio

n

34

Low

• T

he

resi

du

al r

isk

ran

kin

g as

sess

es

the

imp

act

s o

f a

maj

or

on

sho

re

spill

or

leak

. It

is

anti

cip

ate

d th

at,

wit

h t

he

ad

op

tio

n

of

man

ag

emen

t co

ntr

ols

an

d

mit

igat

ion

m

easu

res,

th

is

even

t w

ou

ld b

e “U

nlik

ely”

, bu

t co

uld

per

ceiv

ably

b

e o

f “M

ajo

r”

con

seq

uen

ce

Hig

h

Sev

eral

exp

ert

inve

stig

atio

n/

stu

die

s

No

t A

pp

licab

leS

ect

ion

9

.4.5

.5



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Su

rface

W

ate

rA

dd

itiv

e E

ffe

cts

• A

ll o

f th

e ab

ove

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

ll o

f th

e ab

ove

42

Mediu

m•

Ad

dit

ive

risk

ra

nki

ng

is s

tro

ng

ly

infl

uen

ced

by

the

hig

hes

t ri

sk

– im

pa

cts

to

surf

ace

wat

er

fro

m t

he

on

sho

re

dre

dg

e p

lace

men

t ar

ea o

pti

on

• T

he

Pro

ject

is

con

sid

ere

d to

hav

e an

ove

rall

me

diu

m

resi

du

al r

isk

of

sig

nifi

can

t im

pa

ct

on

su

rfa

ce w

ater

af

ter

the

imp

lem

enta

tio

n o

f ap

pro

pri

ate

mit

igat

ion

co

ntr

ols

Rea

son

able

Sh

ort

ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

.

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

9

.4.8



Flo

ra &

V

eget

ati

on

Co

nst

ruct

ion

V

eg

etat

ion

C

lear

ing

-

Sit

e P

rep

arat

ion

an

d S

ite

Acc

ess

• L

oss

of

flo

ra a

nd

ve

get

atio

n

• E

rosi

on

• S

pre

ad

of

intr

od

uce

d fl

ora

• O

ver-

clea

rin

g

• In

crea

sed

surf

ace

w

ater

ru

no

ff a

nd

ve

loci

ty le

ad

ing

to

incr

ease

d

sed

imen

tati

on

on

ve

get

atio

n

ou

tsid

e o

f cl

eare

d

area

33

Mediu

m•

Ran

kin

g th

e lo

ss

of

con

serv

atio

n

sig

nifi

can

t sp

eci

es (

no

t in

div

idu

als)

an

d

com

mu

nit

ies

asso

ciat

ed

wit

h

veg

etat

ion

cl

eari

ng

• R

isk

ran

kin

g

con

sid

ere

d

po

ten

tial

fo

r d

om

gas

pip

elin

e al

ign

men

t th

rou

gh

Can

e R

iver

C

on

serv

atio

n

Par

k (C

RC

P)

• D

ecl

are

d R

are

Flo

ra (

DR

F)

are

con

sid

ere

d

un

likel

y to

be

pre

sen

t, b

ase

d

on

su

rvey

s co

mp

lete

d to

d

ate.

Ris

k ra

nki

ng

was

b

ase

d o

n w

ors

t ca

se, i

n t

he

even

t th

at D

RF

are

fou

nd

in f

utu

re

surv

eys.

D

istu

rban

ce

fro

m p

ipel

ine

con

stru

ctio

n t

o

CR

CP

is n

ot

exp

ect

ed

to

seve

r co

mm

un

itie

s as

th

e d

om

gas

p

ipel

ine

alig

nm

ent

is

pro

po

sed

to b

e p

aral

lel t

o

exis

tin

g ro

ad

re

serv

e w

her

e th

ere

is e

xist

ing

d

istu

rban

ce

• Im

ple

men

t ve

get

atio

n

clea

rin

g p

roce

ss

• L

imit

cle

arin

g to

des

ign

ate

d ar

eas

and

clea

rly

mar

k th

ese

area

s

• U

tilis

e p

revi

ou

sly

clea

red

area

s w

her

e p

ract

icab

le

• Im

ple

men

t ve

hic

le h

ygie

ne

pro

ced

ure

s ap

pro

pri

ate

for

the

site

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

• D

evel

op

flo

ra a

nd

veg

etat

ion

m

ana

gem

ent

as p

art

of

the

CE

MP

• R

ehab

ilita

te d

istu

rbe

d ar

eas

wh

ere

pra

ctic

able

• W

ee

d m

ana

gem

ent

pro

ced

ure

s

42

Mediu

m•

Th

e ve

get

atio

n

un

its

and

flo

ra

wit

hin

th

e P

roje

ct

area

are

gen

eral

ly

wel

l rep

rese

nte

d

thro

ug

ho

ut

the

loca

l are

a an

d

reg

ion

or

no

t re

stri

cte

d to

th

e P

roje

ct a

rea

• N

o D

RF

loca

ted

w

ith

in P

roje

ct

area

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

cl

eari

ng

of

veg

etat

ion

is

likel

y to

lea

d to

a

loca

l lo

ng

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a C

om

mo

nw

ealt

h o

r W

A L

iste

d F

lora

sp

eci

es

Hig

h

Sev

eral

exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a.

No

t A

pp

licab

leS

ect

ion

9

.5.5

.1

Ap

pen

dix

U

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Flo

ra &

V

eget

ati

on

Co

nst

ruct

ion

Ear

thw

ork

s-

Sit

e P

rep

arat

ion

an

d Tr

ench

ing

• In

tro

du

ctio

n a

nd

/o

r sp

rea

d o

f in

tro

du

ced

flo

ra

• C

han

ges

to

n

atu

ral d

rain

ag

e p

atte

rns

and

g

rou

nd

wat

er

infi

ltra

tio

n

resu

ltin

g in

a

dve

rse

imp

act

s to

ve

get

atio

n

• In

crea

sed

du

st

pro

du

ctio

n

resu

ltin

g in

sm

oth

erin

g o

f u

nd

istu

rbe

d

veg

etat

ion

• M

ob

ilisa

tio

n o

f a

cid

s an

d m

etal

s fr

om

oxi

dis

atio

n o

f P

AS

S

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• Im

ple

men

t ve

hic

le h

ygie

ne

pro

ced

ure

s ap

pro

pri

ate

for

the

site

• W

ee

d m

ana

gem

ent

pro

ced

ure

s

• S

urf

ace

wat

er m

ana

gem

ent

such

as

dra

ins,

set

tlem

ent

po

nd

s et

c

• D

ust

su

pp

ress

ion

as

req

uir

ed

• Im

ple

men

t P

AS

S m

ana

gem

ent

mea

sure

s

52

Low

• T

his

asp

ect

as

sum

es t

hat

all

veg

etat

ion

wit

hin

th

e P

roje

ct a

rea

has

be

en r

emo

ved

(r

isk

to v

eg

etat

ion

fr

om

cle

arin

g

asse

sse

d ab

ove

)

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

ea

rth

wo

rks

cou

ld

lea

d to

an

in

crea

se in

th

e ab

un

dan

ce o

f an

ex

isti

ng

n

on

-nat

ive

flo

ra

spe

cies

wit

hin

th

e P

roje

ct a

rea

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.2

Flo

ra &

V

eget

ati

on

Co

nst

ruct

ion

an

d O

per

atio

ns

Veh

icu

lar

act

ivit

y-

Sit

e A

cces

s,

Co

nst

ruct

ion

V

ehic

les

on

S

ite

and

H

aula

ge

Veh

icle

s

• D

ire

ct im

pa

ct a

s a

resu

lt o

f o

ff-r

oa

d

dri

vin

g

• In

tro

du

ctio

n o

r sp

rea

d o

f in

tro

du

ced

flo

ra

spe

cies

• In

crea

sed

ero

sio

n

• In

crea

sed

du

st

emis

sio

ns

53

Low

• M

ain

co

nce

rn is

th

e sp

rea

d o

f ex

isti

ng

we

ed

s b

eyo

nd

the

site

an

d ra

nki

ng

is

bas

ed

on

th

is

• S

urv

eys

at t

he

site

hav

e fo

un

d

Mes

qu

ite

pre

sen

t

• T

he

risk

as

sess

men

t as

sum

es t

hat

ef

fect

ive

qu

aran

tin

e an

d

hyg

ien

e m

easu

res

will

be

app

lied

to

man

ag

e th

e sp

rea

d o

f w

ee

ds

• M

ana

ge

po

ten

tial

du

st g

ener

atio

n

thro

ug

h im

ple

men

tati

on

of

mea

sure

s to

be

ou

tlin

ed

in t

he

CE

MP

an

d O

EM

P.

• C

lear

ly m

ark

auth

ori

sed

acc

ess

tra

cks

and

roa

ds

• C

on

stru

ct a

cces

s ro

ute

s in

a

man

ner

th

at r

ed

uce

s p

ote

nti

al f

or

ero

sio

n

• W

ee

d m

ana

gem

ent

pro

ced

ure

s

63

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

ve

hic

le a

ctiv

ity

cou

ld p

oss

ibly

re

sult

in a

loca

l sh

ort

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a sp

eci

es o

r ve

get

atio

n

com

mu

nit

y

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.3

Ap

pen

dix

U

1



Flo

ra &

V

eget

ati

on

Co

nst

ruct

ion

an

d O

per

atio

ns

Fir

e-

Veh

icle

an

d

Ma

chin

ery

Act

ivit

y an

d

Em

plo

yee

Act

ivit

y (e

.g.

smo

kin

g)

• In

crea

sed

risk

of

fire

res

ult

ing

fro

m

incr

ease

d ve

hic

le

and

ma

chin

ery

act

ivit

y

• A

lter

ed

fire

re

gim

es r

esu

ltin

g

fro

m in

crea

sed

in

cid

ence

of

fire

le

ad

ing

to r

eg

ion

al

imp

act

on

sp

eci

es

abu

nd

ance

an

d

div

ersi

ty

63

Ver

y

Low

• E

nvi

ron

men

t is

su

bje

ct t

o n

atu

ral

fire

s

• R

isk

asse

ssm

ent

bas

ed

on

th

e lik

elih

oo

d o

f im

pa

cts

of

fire

(c

ause

d b

y th

e P

roje

ct)

on

flo

ra

and

veg

etat

ion

• T

her

e w

ill b

e m

ana

gem

ent

mea

sure

s o

n s

ite

to c

on

tain

fire

s

• F

ire

fig

hti

ng

and

fire

aw

aren

ess

trai

nin

g fo

r p

roje

ct p

erso

nn

el

• E

stab

lish

a c

on

tin

uo

us

fire

bre

ak

aro

un

d th

e p

erim

eter

of

the

LN

G

pla

nt

thro

ug

h v

eg

etat

ion

cle

aran

ce

54

Ver

y

Low

• P

ote

nti

al im

pa

cts

fro

m fi

re t

o fl

ora

an

d ve

get

atio

n

ou

tsid

e o

f th

e P

roje

ct a

rea

is n

ot

bel

ieve

d to

be

sig

nifi

can

t as

fire

s a

dja

cen

t to

th

e P

roje

ct w

ill b

e lim

ite

d o

r ra

pid

ly

exti

ng

uis

he

d

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

u

nlik

ely

that

a fi

re

wo

uld

res

ult

in a

lo

cal s

ho

rt-t

erm

re

du

ctio

n in

th

e ab

un

dan

ce o

f a

spe

cies

or

veg

etat

ion

co

mm

un

ity

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.4

Flo

ra &

V

eget

ati

on

Op

erat

ion

sA

ir E

mis

sio

ns-

P

lan

t O

per

atio

ns

and

Veh

icle

M

ove

men

ts

• D

etri

men

t to

ve

get

atio

n a

s a

resu

lt o

f ai

r em

issi

on

s fr

om

th

e p

roce

ssin

g

faci

lity

54

Ver

y

Low

• R

isk

asse

ssm

ent

bas

ed

on

m

ang

rove

s b

ein

g

the

mo

st

sen

siti

ve

rece

pto

r to

g

rou

nd

leve

l o

zon

e (s

eco

nd

ary

po

lluta

nt)

• A

n A

ir Q

ual

ity

scre

enin

g

asse

ssm

ent

(Au

splu

me

Ver

sio

n 6

.0)

ind

icat

es t

hat

g

rou

nd

leve

l o

zon

e co

nce

ntr

atio

ns

are

un

likel

y to

ex

cee

d

envi

ron

men

tal

limit

s (N

EP

M)

du

rin

g n

orm

al

op

erat

ion

s

• P

ho

toch

emic

al

rea

ctio

ns

asso

ciat

ed

wit

h

seco

nd

ary

po

lluta

nts

th

at

crea

te t

he

gre

ates

t im

pa

ct

on

ve

get

atio

n a

re

likel

y to

occ

ur

at

leve

ls b

elo

w

envi

ron

men

tal

limit

s - W

HO

Air

Q

ual

ity

Gu

idel

ines

fo

r ve

get

atio

n

• M

ana

gem

ent

of

the

pro

cess

ing

o

per

atio

n t

o r

ed

uce

po

lluti

ng

em

issi

on

s as

low

as

reas

on

ably

p

ract

icab

le

• R

eg

ula

r m

ain

ten

ance

of

eq

uip

men

t fo

r g

oo

d p

erfo

rman

ce a

nd

red

uce

d

emis

sio

ns

• P

lan

nin

g o

f n

on

-ro

uti

ne

(pla

nn

ed

) m

ain

ten

ance

sh

utd

ow

ns

to r

ed

uce

em

issi

on

s, w

her

e p

ract

icab

le

• O

ng

oin

g m

on

ito

rin

g o

f em

issi

on

s fr

om

th

e fa

cilit

y to

det

erm

ine

the

leve

l of

po

lluti

ng

emis

sio

ns

• Im

ple

men

tati

on

of

rem

ed

ial a

ctio

n

sho

uld

em

issi

on

leve

ls e

xce

ed

a

gre

ed

leve

ls

64

Ver

y

Low

• P

ote

nti

al im

pa

cts

to m

ang

rove

sy

stem

s ar

e as

sess

ed

in

Ch

apte

r 8

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

u

nlik

ely

that

air

em

issi

on

s w

ill

imp

act

on

th

e lo

cal s

ho

rt-t

erm

re

du

ctio

n in

th

e ab

un

dan

ce o

f a

spe

cies

or

veg

etat

ion

co

mm

un

ity

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.5



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Flo

ra &

V

eget

ati

on

Co

nst

ruct

ion

Alt

erat

ion

of

Su

rfa

ce W

ater

D

rain

ag

e - S

ite

Pre

par

atio

n,

Ear

thw

ork

s an

d P

rese

nce

o

f in

fras

tru

ctu

re

• D

etri

men

t to

ve

get

atio

n d

ue

to

chan

ges

in s

urf

ace

d

rain

ag

e p

atte

rns

• A

lter

atio

ns

to

gro

un

d w

ater

in

filt

rati

on

• In

crea

sed

ero

sio

n

lea

din

g to

d

ow

nst

ream

im

pa

cts

on

re

mn

ant

veg

etat

ion

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

etai

n n

atu

ral d

rain

ag

e w

her

e p

ract

icab

le

• Fa

cilit

ies

des

ign

ed

to li

mit

imp

act

s to

su

rfa

ce w

ater

sys

tem

s.

• M

on

ito

r d

ow

n-s

trea

m v

eg

etat

ion

53

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at

alte

rati

on

of

surf

ace

wat

er

dra

ina

ge

cou

ld

lea

d to

a lo

cal

lon

g-t

erm

re

du

ctio

n in

th

e ab

un

dan

ce o

f a

spe

cies

or

veg

etat

ion

co

mm

un

ity

ou

tsid

e o

f th

e P

roje

ct a

rea

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.6

Flo

ra &

V

eget

ati

on

Co

nst

ruct

ion

an

d O

per

atio

ns

Du

st

Su

pp

ress

ion

-A

pp

licat

ion

of

salin

e w

ater

or

oth

er

sup

pre

ssan

ts

for

du

st

con

tro

l

• D

etri

men

t to

ve

get

atio

n d

ue

to

ove

rsp

ray

or

run

-off

of

sup

ress

ents

use

d

for

du

st c

on

tro

l

• In

crea

sed

n

utr

ien

t lo

ad

ing

• In

crea

sed

p

ote

nti

al f

or

we

ed

g

row

th o

n

dis

turb

ed

gro

un

d

be

cau

se o

f av

aila

bili

ty o

f n

utr

ien

ts

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• Fr

ing

ing

veg

etat

ion

mo

nit

ori

ng

• A

man

ag

emen

t p

lan

will

be

dev

elo

pe

d as

par

t o

f th

e C

EM

P a

nd

O

EM

P w

ith

th

e ke

y o

bje

ctiv

e to

m

ana

ge

the

gen

erat

ion

of

du

st

• S

pe

cifi

c d

ust

co

ntr

ol m

easu

res

wo

uld

als

o b

e im

ple

men

ted

as p

art

of

the

stan

dar

d o

per

atio

n o

f th

e co

ncr

ete

bat

chin

g p

lan

t

53

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at d

ust

su

pp

ress

ion

co

uld

re

sult

in a

loca

l lo

ss o

f a

spe

cies

or

veg

etat

ion

co

mm

un

ity

ou

tsid

e o

f th

e p

roje

ct a

rea

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.7

Ap

pen

dix

U

1

Flo

ra &

V

eget

ati

on

Op

erat

ion

s L

eaks

& S

pill

s-

Veh

icle

R

efu

ellin

g,

Bre

akd

ow

ns

and

Pla

nt

Op

erat

ion

s

• D

etri

men

t to

ve

get

atio

n d

ue

to

chan

ges

to

su

rfa

ce w

ater

an

d

gro

un

dw

ater

q

ual

ity

• D

ire

ct im

pa

ct o

f sp

ills

on

ve

get

atio

n

43

Low

• R

isk

asse

ssm

ent

assu

mes

th

at

effe

ctiv

e st

ora

ge

and

man

ag

emen

t m

easu

res

will

be

in p

lace

• A

pp

rop

riat

e st

ora

ge

vess

els,

co

nta

inm

ent

faci

litie

s, t

ran

sfer

e

qu

ipm

ent

and

han

dlin

g m

eth

od

s

• C

aptu

re a

nd

trea

tmen

t o

f ru

no

ff

fro

m o

per

atio

nal

are

as, f

uel

far

ms

and

bu

nd

ed

area

s

• A

pp

rop

riat

e sp

ill r

esp

on

se

eq

uip

men

t, e

mer

gen

cy r

esp

on

se

trai

nin

g an

d sp

ill c

on

tin

gen

cy

pla

nn

ing

44

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

u

nlik

ely

that

leak

s an

d sp

ills

will

hav

e a

sho

rt-t

erm

im

pa

ct o

n n

ativ

e ve

get

atio

n o

uts

ide

the

Pro

ject

are

a

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.8



Flo

ra &

V

eget

ati

on

Co

nst

ruct

ion

an

d O

per

atio

ns

Dre

dg

e M

ater

ial

Pla

cem

ent

Are

a- S

eep

ag

e fr

om

P

lace

men

t A

rea

• D

etri

men

t to

ve

get

atio

n o

uts

ide

the

pla

nt

foo

tpri

nt

du

e to

ch

ang

es in

su

rfa

ce a

nd

g

rou

nd

wat

er

qu

alit

y an

d

qu

anti

ty

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• M

on

ito

rin

g b

ore

s

• M

on

ito

rin

g an

d m

ana

gem

ent

pro

gra

m (a

s a

par

t o

f th

e C

EM

P a

nd

th

e O

EM

P)

• C

on

tain

men

t an

d co

ntr

olle

d re

leas

e st

rate

gie

s in

clu

din

g se

dim

ent

po

nd

s

• D

isch

arg

e vi

a a

con

tro

l po

int

(e.g

. w

eir

bo

x)

• T

he

pla

cem

ent

area

has

be

en

sele

cte

d to

re

du

ce t

he

foo

tpri

nt

use

d

• D

red

ge

d m

ater

ial w

ill b

e co

nta

ine

d

in a

bu

nd

ed

area

• W

her

e p

ract

ical

, pla

cem

ent

in t

he

east

ern

hal

f o

f th

e p

lace

men

t ar

ea

will

be

pre

ferr

ed

to li

mit

wat

er

leve

ls in

(an

d se

epa

ge

fro

m)

the

wes

tern

hal

f o

f th

e p

lace

men

t ar

ea

• D

isch

arg

e o

f d

eca

nt

wat

er d

uri

ng

th

e fi

rst

18-2

4 m

on

ths

will

be

pu

mp

ed

via

pip

elin

e to

a m

arin

e o

utf

all

• In

stal

lati

on

of

a d

rain

ag

e d

itch

to

co

llect

an

d d

iver

t se

epa

ge

53

Low

• It

is a

ssu

me

d th

at

the

flo

ra a

nd

ve

get

atio

n o

uts

ide

of

the

pro

ject

are

a co

uld

be

sub

ject

to

an

ind

ire

ct r

isk

sho

uld

th

e d

red

ge

mat

eria

l p

lace

men

t ar

ea

cau

se im

pa

cts

thro

ug

h s

ea-w

ater

se

epa

ge

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

th

e d

red

ge

mat

eria

l p

lace

men

t ar

ea

may

cau

se a

loca

l lo

ng

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a sp

eci

es o

r ve

get

atio

n

com

mu

nit

y o

uts

ide

the

Pro

ject

are

a

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns/

stu

die

s

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.5

.9

Ap

pen

dix

U

1

Flo

ra &

V

eget

ati

on

Ad

dit

ive

Eff

ect

s•

All

of

the

abo

ve-

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• A

ll o

f th

e ab

ove

42

Mediu

m•

Flo

ra a

nd

ve

get

atio

n

pre

sen

t in

th

e P

roje

ct a

rea

are

gen

eral

ly

wid

esp

rea

d an

d

wel

l rep

rese

nte

d

in t

he

surr

ou

nd

ing

re

gio

n

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a lo

cal

lon

g-t

erm

re

du

ctio

n in

th

e ab

un

dan

ce o

f a

Co

mm

on

wea

lth

or

WA

Lis

ted

Flo

ra

spe

cies

co

uld

o

ccu

r w

ith

in t

he

Pro

ject

are

a d

ue

to c

lear

ing

du

rin

g

con

stru

ctio

n

act

ivit

ies

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.5.8



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

Ve

get

atio

n

Cle

arin

g –

Sit

e P

rep

arat

ion

• L

oss

or

alte

rati

on

o

f te

rres

tria

l fa

un

a h

abit

at

• L

oss

of

po

pu

lati

on

s

• D

ire

ct im

pa

ct w

ith

m

ach

iner

y

• Fr

ag

men

tati

on

of

terr

estr

ial f

aun

a h

abit

at r

esu

ltin

g

in r

ed

uce

d ar

ea o

f h

abit

at, a

lter

ed

b

ehav

iou

ral

pat

tern

s et

c

33

Mediu

m•

A c

on

serv

ativ

e ap

pro

ach

was

ta

ken

in t

he

even

t th

at

pro

tect

ed

fau

na

spe

cies

wer

e p

rese

nt

• H

abit

ats

pre

sen

t ar

e w

ell

rep

rese

nte

d

wit

hin

th

e lo

cal

and

reg

ion

al a

rea

• M

on

ito

rin

g an

d m

ana

gem

ent

pro

gra

m a

s p

art

of

the

CE

MP

• Im

ple

men

t ve

get

atio

n c

lear

ing

p

roce

ss

• R

ehab

ilita

te d

istu

rbe

d ar

eas

wh

ere

pra

ctic

able

• In

spe

ct c

lear

ed

area

s im

me

dia

tely

fo

r p

rese

nce

of

inju

red

anim

als

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

53

Low

• N

o im

pa

cts

to t

he

stat

us

of

any

thre

aten

ed

fau

na

are

exp

ect

ed

.

• H

abit

ats

pre

sen

t ar

e w

ell

rep

rese

nte

d w

ith

in

the

loca

l an

d

reg

ion

al a

rea

.

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at a

lo

cal s

ho

rt-t

erm

re

du

ctio

n in

th

e ab

un

dan

ce o

f a

Co

mm

on

wea

lth

or

WA

Lis

ted

Fau

na

spe

cies

co

uld

o

ccu

r.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.1

Ap

pen

dix

U

1

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

Ear

thw

ork

s –

Sit

e P

rep

arat

ion

an

d

Co

nst

ruct

ion

• M

od

ifica

tio

n o

r d

estr

uct

ion

of

fau

na

hab

itat

• E

ntr

apm

ent

in

tren

ches

an

d

bu

nd

s

• D

ire

ct im

pa

ct w

ith

m

ach

iner

y

44

Low

• R

anki

ng

is b

ase

d

on

ris

k o

f fa

un

a fa

llin

g in

to t

he

tren

ches

• R

isk

asse

ssm

ent

assu

mes

th

at

effe

ctiv

e m

ana

gem

ent

mea

sure

s ar

e in

p

lace

• M

on

ito

rin

g an

d m

ana

gem

ent

pro

gra

m a

s p

art

of

the

CE

MP

• C

on

du

ct in

spe

ctio

n o

f al

l op

en

tren

ches

an

d re

mo

ve a

ny

trap

pe

d

fau

na

. Pro

vid

e es

cap

e ro

ute

s fr

om

tr

ench

es, o

r fe

nci

ng

tren

ches

off

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

53

Low

• N

o im

pa

cts

to t

he

stat

us

of

any

thre

aten

ed

fau

na

are

exp

ect

ed

.

• H

abit

ats

pre

sen

t ar

e w

ell

rep

rese

nte

d w

ith

in

the

loca

l an

d

reg

ion

al a

rea

. Th

e re

sid

ual

ris

k ra

nki

ng

has

be

en

ob

tain

ed

as it

is

po

ssib

le t

hat

a

loca

l sh

ort

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a te

rres

tria

l fau

na

spe

cies

co

uld

o

ccu

r.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.2

Ap

pen

dix

U

1



Ter

rest

rial

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Fir

e-

Veh

icle

an

d

Ma

chin

ery

Act

ivit

y an

d

Em

plo

yee

Act

ivit

y (e

.g.

smo

kin

g)

• In

crea

sed

risk

of

fire

res

ult

ing

fro

m

incr

ease

d ve

hic

le

and

ma

chin

ery

act

ivit

y

• A

lter

ed

fire

re

gim

es r

esu

ltin

g

fro

m in

crea

sed

in

cid

ence

of

fire

le

ad

ing

to r

eg

ion

al

imp

act

on

sp

eci

es

abu

nd

ance

an

d

div

ersi

ty

63

Ver

y

Low

• E

nvi

ron

men

t is

su

bje

ct t

o n

atu

ral

fire

s

• R

isk

asse

ssm

ent

bas

ed

on

th

e lik

elih

oo

d o

f im

pa

cts

of

fire

(c

ause

d b

y th

e P

roje

ct)

on

flo

ra

and

veg

etat

ion

• T

her

e w

ill b

e m

ana

gem

ent

mea

sure

s o

n s

ite

to c

on

tain

fire

s

• A

pp

rop

riat

e fi

refi

gh

tin

g e

qu

ipm

ent

on

sit

e, t

rain

ing

of

site

per

son

nel

• E

stab

lish

a c

on

tin

uo

us

fire

bre

ak

aro

un

d th

e p

erim

eter

of

the

LN

G

pla

nt

thro

ug

h v

eg

etat

ion

cle

aran

ce

• C

on

du

ct c

on

stru

ctio

n a

nd

o

per

atio

ns

in c

lear

ed

area

s, w

her

e p

ract

icab

le

• C

aref

ully

man

ag

e ve

hic

le a

ctiv

ity

in

hig

h r

isk

area

s (e

.g. l

on

g g

rass

)

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

54

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

u

nlik

ely

that

fire

w

ill o

ccu

r as

a

resu

lt o

f th

e P

roje

ct, b

ut

wo

uld

le

ad

to a

loca

l sh

ort

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a C

om

mo

nw

ealt

h o

r W

A L

iste

d

terr

estr

ial F

aun

a sp

eci

es

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t S

ign

ifica

nt

Se

ctio

n

9.6

.5.3

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Veh

icle

A

ctiv

ity-

Sit

e A

cces

s an

d O

n-s

ite

Mo

vem

ents

• D

ire

ct im

pa

ct w

ith

ve

hic

les

• In

crea

sed

roa

d ki

ll re

sult

ing

in

attr

act

ion

of

scav

eng

ers

(e.g

. ra

pto

rs)

lea

din

g to

m

ore

ro

ad

kill

53

Low

• M

ain

co

nce

rn is

tr

affi

c o

nsi

te a

nd

tr

avel

to

an

d

fro

m s

ite

• Tr

affi

c w

ill a

lso

b

e in

crea

sed

on

ex

isti

ng

roa

ds

• P

ub

lic p

erce

pti

on

w

as c

on

sid

ere

d

as p

art

of

asse

ssm

ent

• V

ehic

les

will

be

req

uir

ed

to k

eep

to

au

tho

rise

d a

cces

s tr

ack

s an

d ro

ad

s an

d th

ese

will

be

clea

rly

mar

ked

to

faci

litat

e th

is

• R

ed

uce

d ve

hic

le s

pe

ed

s, a

pp

ly

spe

ed

limit

s

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

52

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at

veh

icle

imp

act

s m

ay o

ccu

r, a

nd

th

at t

his

may

lea

d

to a

loca

l sh

ort

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a C

om

mo

nw

ealt

h o

r W

A L

iste

d

terr

estr

ial F

aun

a sp

eci

es.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.4

Ter

rest

rial

Fau

na

Op

erat

ion

sF

lari

ng

-

Pla

nt

Op

erat

ion

s

• D

ire

ct im

pa

ct t

o

bir

ds

roo

stin

g in

in

fras

tru

ctu

re

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• H

eig

ht

of

the

sta

cks

• R

esid

ual

hea

t o

f th

e st

ack

s w

hen

n

ot

flar

ing

• C

on

tin

uo

us

pilo

t th

at m

ay

dis

cou

rag

e b

ird

s fr

om

lan

din

g

• H

eat

and

visi

ble

flam

e d

uri

ng

fl

arin

g

65

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

th

ere

is a

rem

ote

lik

elih

oo

d th

at

flar

ing

cou

ld le

ad

to

a lo

cal

sho

rt-t

erm

re

du

ctio

n in

ab

un

dan

ce o

f a

terr

estr

ial f

aun

a sp

eci

es.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.5

Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

Ve

get

atio

n

Cle

arin

g –

Sit

e P

rep

arat

ion

• L

oss

or

alte

rati

on

o

f te

rres

tria

l fa

un

a h

abit

at

• L

oss

of

po

pu

lati

on

s

• D

ire

ct im

pa

ct w

ith

m

ach

iner

y

• Fr

ag

men

tati

on

of

terr

estr

ial f

aun

a h

abit

at r

esu

ltin

g

in r

ed

uce

d ar

ea o

f h

abit

at, a

lter

ed

b

ehav

iou

ral

pat

tern

s et

c

33

Mediu

m•

A c

on

serv

ativ

e ap

pro

ach

was

ta

ken

in t

he

even

t th

at

pro

tect

ed

fau

na

spe

cies

wer

e p

rese

nt

• H

abit

ats

pre

sen

t ar

e w

ell

rep

rese

nte

d

wit

hin

th

e lo

cal

and

reg

ion

al a

rea

• M

on

ito

rin

g an

d m

ana

gem

ent

pro

gra

m a

s p

art

of

the

CE

MP

• Im

ple

men

t ve

get

atio

n c

lear

ing

p

roce

ss

• R

ehab

ilita

te d

istu

rbe

d ar

eas

wh

ere

pra

ctic

able

• In

spe

ct c

lear

ed

area

s im

me

dia

tely

fo

r p

rese

nce

of

inju

red

anim

als

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

53

Low

• N

o im

pa

cts

to t

he

stat

us

of

any

thre

aten

ed

fau

na

are

exp

ect

ed

.

• H

abit

ats

pre

sen

t ar

e w

ell

rep

rese

nte

d w

ith

in

the

loca

l an

d

reg

ion

al a

rea

.

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at a

lo

cal s

ho

rt-t

erm

re

du

ctio

n in

th

e ab

un

dan

ce o

f a

Co

mm

on

wea

lth

or

WA

Lis

ted

Fau

na

spe

cies

co

uld

o

ccu

r.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.1

Ap

pen

dix

U

1

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

Ear

thw

ork

s –

Sit

e P

rep

arat

ion

an

d

Co

nst

ruct

ion

• M

od

ifica

tio

n o

r d

estr

uct

ion

of

fau

na

hab

itat

• E

ntr

apm

ent

in

tren

ches

an

d

bu

nd

s

• D

ire

ct im

pa

ct w

ith

m

ach

iner

y

44

Low

• R

anki

ng

is b

ase

d

on

ris

k o

f fa

un

a fa

llin

g in

to t

he

tren

ches

• R

isk

asse

ssm

ent

assu

mes

th

at

effe

ctiv

e m

ana

gem

ent

mea

sure

s ar

e in

p

lace

• M

on

ito

rin

g an

d m

ana

gem

ent

pro

gra

m a

s p

art

of

the

CE

MP

• C

on

du

ct in

spe

ctio

n o

f al

l op

en

tren

ches

an

d re

mo

ve a

ny

trap

pe

d

fau

na

. Pro

vid

e es

cap

e ro

ute

s fr

om

tr

ench

es, o

r fe

nci

ng

tren

ches

off

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

53

Low

• N

o im

pa

cts

to t

he

stat

us

of

any

thre

aten

ed

fau

na

are

exp

ect

ed

.

• H

abit

ats

pre

sen

t ar

e w

ell

rep

rese

nte

d w

ith

in

the

loca

l an

d

reg

ion

al a

rea

. Th

e re

sid

ual

ris

k ra

nki

ng

has

be

en

ob

tain

ed

as it

is

po

ssib

le t

hat

a

loca

l sh

ort

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a te

rres

tria

l fau

na

spe

cies

co

uld

o

ccu

r.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.2

Ap

pen

dix

U

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

No

ise

Em

issi

on

s-

Pla

nt

Op

erat

ion

s an

d V

ehic

le

Mo

vem

ents

• Te

mp

ora

ry

loca

lise

d

beh

avio

ura

l ch

ang

es (e

.g.

mo

vem

ent

away

fr

om

th

e p

lan

t si

te)

53

Low

• P

roje

ct w

ill

com

ply

wit

h W

A

no

ise

reg

ula

tio

ns

to r

ed

uce

th

e p

ote

nti

al im

pa

ct

of

no

ise

bey

on

d

the

site

b

ou

nd

ary.

• L

imit

no

ise

emis

sio

ns

wh

ere

pra

ctic

able

• To

co

mp

ly w

ith

En

viro

nm

enta

l P

rote

ctio

n (

No

ise)

Re

gu

lati

on

s 19

97

an

d en

viro

nm

enta

l ob

ject

ives

fo

r n

ois

e em

issi

on

s d

uri

ng

co

nst

ruct

ion

act

ivit

ies,

m

ana

gem

ent

and

mit

igat

ion

m

easu

res

will

be

dev

elo

pe

d an

d

imp

lem

ente

d as

par

t o

f th

e C

EM

P

• T

he

curr

ent

Pro

ject

des

ign

an

d

imp

lem

enta

tio

n o

f in

du

stry

st

and

ard

man

ag

emen

t m

easu

res

enab

le n

ois

e le

vels

to

co

mp

ly w

ith

g

ove

rnm

ent

reg

ula

tio

ns

53

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

th

ere

is a

po

ssib

ility

th

at a

loca

l sh

ort

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a C

om

mo

nw

ealt

h o

r W

A L

iste

d Fa

un

a sp

eci

es c

ou

ld

occ

ur.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.6

Ap

pen

dix

U

1

Ter

rest

rial

Fau

na

Op

erat

ion

s L

eaks

& S

pill

s-

Veh

icle

R

efu

ellin

g,

Bre

akd

ow

ns

and

Pla

nt

Op

erat

ion

s

• L

oss

of

hab

itat

as

a re

sult

of

imp

act

to

ve

get

atio

n

• D

ire

ct im

pa

ct d

ue

to c

on

tact

wit

h

toxi

c su

bst

ance

s o

r ch

ang

es t

o

surf

ace

wat

er

qu

alit

y

43

Low

• R

isk

asse

ssm

ent

assu

mes

th

at

effe

ctiv

e st

ora

ge

and

man

ag

emen

t m

easu

res

will

be

in p

lace

.

• A

pp

rop

riat

e st

ora

ge

vess

els,

co

nta

inm

ent

faci

litie

s, t

ran

sfer

e

qu

ipm

ent

and

han

dlin

g m

eth

od

s

• C

aptu

re a

nd

trea

tmen

t o

f ru

no

ff

fro

m o

per

atio

nal

are

as a

nd

bu

nd

ed

ar

eas

• S

pill

res

po

nse

eq

uip

men

t,

emer

gen

cy r

esp

on

se t

rain

ing

and

sp

ill c

on

tin

gen

cy p

lan

nin

g

• R

emo

ve a

nd

rem

ed

iate

co

nta

min

ate

d so

il

• D

evel

op

and

imp

lem

ent

an

emp

loye

e en

viro

nm

enta

l ed

uca

tio

n

pro

gra

m/i

nd

uct

ion

54

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

u

nlik

ely

that

a

loca

l sh

ort

-ter

m

red

uct

ion

in t

he

abu

nd

ance

of

a C

om

mo

nw

ealt

h o

r W

A L

iste

d Fa

un

a sp

eci

es c

ou

ld

occ

ur.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.7

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Lig

ht

Em

issi

on

s -

Pla

nt

and

G

ener

al

Op

erat

ion

s,

Acc

om

mo

-d

atio

n V

illa

ge

• C

han

ges

to

b

ehav

iou

r o

f lo

cal

terr

estr

ial f

aun

a p

op

ula

tio

ns

• A

ttra

ctio

n t

o li

gh

t so

urc

es a

s a

resu

lt

of

inse

ct

acc

um

ula

tio

n

resu

ltin

g in

in

crea

sed

in

cid

ence

of

roa

d

kill

• L

on

g-t

erm

ch

ang

es t

o

terr

estr

ial f

aun

al

asse

mb

lag

e as

a

resu

lt o

f in

crea

sed

fo

od

sou

rce

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• L

igh

t in

ten

sity

will

be

limit

ed

to t

hat

n

ece

ssar

y fo

r th

e sa

fe o

per

atio

n o

f th

e p

lan

t

52

Low

• It

is a

ssu

me

d th

at

ligh

tin

g an

d lig

ht

spill

will

be

red

uce

d w

her

ever

p

ract

icab

le a

nd

sa

fe t

o d

o s

o in

o

rder

to

lim

it

imp

act

s to

te

rres

tria

l fau

na

fro

m li

gh

t em

issi

on

s.

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a lo

cal

sho

rt-t

erm

re

du

ctio

n in

th

e ab

un

dan

ce o

f a

Co

mm

on

wea

lth

or

WA

Lis

ted

Fau

na

spe

cies

co

uld

o

ccu

r.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.8



Ter

rest

rial

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Was

te

Han

dlin

g &

S

tora

ge

–

Pla

nt

and

G

ener

al

Op

erat

ion

s,

Acc

om

mo

da

-ti

on

Vill

ag

e

• A

ttra

ctio

n o

f te

rres

tria

l fau

na

to w

aste

res

ult

ing

in

incr

ease

d

inci

den

ce o

f ro

ad

ki

ll

• In

crea

ses

in f

eral

an

imal

po

pu

lati

on

(e

.g. c

ats,

wild

d

og

s)

• D

ire

ct im

pa

ct d

ue

to t

erre

stri

al

fau

na

be

com

ing

tr

app

ed

in w

aste

fa

cilit

ies

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

olid

was

te r

ece

pta

cles

will

hav

e co

vers

wh

ere

pra

ctic

able

. Te

mp

ora

ry c

on

tain

men

t fa

cilit

ies

will

be

avai

lab

le t

o s

tore

was

te

du

rin

g th

e ea

rly

con

stru

ctio

n

ph

ases

• W

aste

re

du

ctio

n m

easu

res

to b

e im

ple

men

ted

wh

ere

pra

ctic

able

• R

eg

ula

r d

isp

osa

l of

was

te t

o r

ed

uce

a

ccu

mu

lati

on

• M

ana

gem

ent

mea

sure

s w

ill b

e u

sed

to

lim

it f

aun

a a

cces

s to

sto

rmw

ater

p

on

ds

54

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

th

e m

ana

gem

ent

mea

sure

s d

escr

ibe

d fo

r w

aste

han

dlin

g

and

sto

rag

e ar

e u

nlik

ely

to le

ad

to

a lo

cal s

ho

rt-t

erm

in

crea

se in

th

e ab

un

dan

ce o

f an

in

tro

du

ced

anim

al.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.9

Ter

rest

rial

Fau

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Ph

ysic

al

Pre

sen

ce o

f In

fras

tru

ctu

re

(Su

rfa

ce W

ater

D

rain

ag

e)-

Co

nst

ruct

ion

o

f R

oa

d/

Cau

sew

ay,

Lo

cati

on

of

Pla

nt

Pa

d

• C

han

ges

to

su

rfa

ce w

ater

vo

lum

e an

d fl

ow

s re

sult

ing

in

imp

act

s to

fau

na

hab

itat

• Im

pa

cts

on

fau

na

and

fau

na

hab

itat

d

ue

to c

han

ges

in

veg

etat

ion

co

mm

un

ity

com

po

siti

on

an

d

the

dry

ing

ou

t o

r in

un

dat

ion

of

area

s

• Fa

un

a an

d in

p

arti

cula

r b

ird

s m

ay e

nte

r an

d

be

com

e en

trap

pe

d w

ith

in

sed

imen

tati

on

an

d o

ther

wat

er

colle

ctio

n p

on

ds

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• E

ng

ine

erin

g an

d d

esig

n s

olu

tio

ns

such

as

culv

erts

, se

dim

enta

tio

n

po

nd

s, a

silt

fen

ce a

rou

nd

the

con

stru

ctio

n a

rea

and

pla

cem

ent

of

rock

at

surf

ace

wat

er r

elea

se

po

ints

to

re

du

ce e

rosi

on

• Q

uar

anti

ne

pro

ced

ure

s w

ill b

e im

ple

men

ted

for

the

Pro

ject

• W

her

e p

ract

icab

le, p

on

ds

will

be

loca

ted

wit

hin

th

e p

erim

eter

fen

ce

and

hav

e fl

oat

s an

d/o

r fa

un

a e

gre

ss m

ats

to e

nab

le f

aun

a to

exi

t th

ese

wat

er b

od

ies

43

Low

• In

fras

tru

ctu

re w

ill

be

des

ign

ed

to

reta

in n

atu

ral

dra

ina

ge

feat

ure

s w

her

e p

ract

icab

le.

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at t

he

ph

ysic

al p

rese

nce

o

f in

fras

tru

ctu

re

cou

ld le

ad

to a

lo

cal l

on

g-t

erm

in

crea

se in

th

e ab

un

dan

ce o

f an

in

tro

du

ced

anim

al

and

cau

se a

loca

l lo

ng

-ter

m

red

uct

ion

of

a C

om

mo

nw

ealt

h o

r W

A L

iste

d Fa

un

a sp

eci

es.

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9

.6.5

.10



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Ter

rest

rial

Fau

na

Ad

dit

ive

Eff

ect

s•

All

of

the

abo

ve-

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• A

ll o

f th

e ab

ove

43

Low

• S

ix t

hre

aten

ed

fa

un

a sp

eci

es, o

r si

gn

s o

f th

ese

spe

cies

, wer

e re

cord

ed

wit

hin

th

e st

ud

y ar

ea.

Ho

wev

er, t

hey

are

g

ener

ally

hig

hly

m

ob

ile a

nd

it is

ex

pe

cte

d th

at t

he

maj

ori

ty o

f in

div

idu

als

will

m

ove

aw

ay f

rom

th

e P

roje

ct a

rea

at t

he

com

men

cem

ent

of

the

con

stru

ctio

n

ph

ase

• N

o s

pe

cies

list

ed

u

nd

er t

he

EP

BC

A

ct (C

th)

are

likel

y to

be

affe

cte

d b

y th

e P

roje

ct

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at a

lo

cal l

on

g-t

erm

re

du

ctio

n o

f a

Co

mm

on

wea

lth

or

WA

Lis

ted

Fau

na

spe

cies

co

uld

o

ccu

r

Hig

h

Sev

eral

Exp

ert

inve

stig

atio

ns

/ st

ud

ies

Exc

elle

nt

surv

ey

dat

a

Lo

ng

-ter

m

mo

nit

ori

ng

re

sult

s av

aila

ble

No

t A

pp

licab

leS

ect

ion

9

.6.8



Su

bte

rra-

nea

n F

au

na

Co

nst

ruct

ion

V

eg

etat

ion

C

lear

ing

–

Sit

e P

rep

arat

ion

an

d S

ite

Acc

ess

• L

oss

of

hab

itat

• L

oca

lise

d ch

ang

es

to t

he

sub

terr

anea

n

fau

na

hab

itat

du

e to

ch

ang

es in

th

e h

ydro

log

y an

d

hyd

rog

eo

log

y o

f th

e ar

ea

53

Low

• Fo

r th

is r

isk

asse

ssm

ent

a co

nse

rvat

ive

app

roa

ch

assu

mes

a w

ors

t ca

se s

cen

ario

th

at

sub

terr

anea

n

fau

na

may

be

pre

sen

t

• P

ote

nti

al im

pa

cts

on

su

bte

rran

ean

fa

un

a, i

f p

rese

nt,

fr

om

ve

get

atio

n

clea

rin

g is

co

nsi

der

ed

low

• Im

ple

men

t ve

get

atio

n c

lear

ing

p

roce

ss

• D

evel

op

flo

ra a

nd

veg

etat

ion

m

ana

gem

ent

as p

art

of

the

CE

MP

• W

her

e p

ract

icab

le, v

eg

etat

ion

an

d

flo

ra w

ith

in t

he

Pro

ject

are

a w

ill b

e re

tain

ed

sho

uld

cle

arin

g n

ot

be

esse

nti

al

• W

her

e p

ract

icab

le r

ehab

ilita

te

dis

turb

ed

area

s u

po

n c

om

ple

tio

n o

f a

ctiv

itie

s

• R

etai

n n

atu

ral d

rain

ag

e w

her

e p

ract

icab

le

63

Ver

y

Low

• O

nly

tw

o s

pe

cies

o

f st

ygo

fau

na

hav

e b

een

loca

ted

w

ith

in t

he

Pro

ject

ar

ea, a

nd

bo

th

spe

cies

are

like

ly

to b

e w

ides

pre

ad

th

rou

gh

ou

t th

e P

ilbar

a. N

o

tro

glo

fau

na

hav

e b

een

loca

ted

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at a

sh

ort

-ter

m im

pa

ct

to s

ub

terr

anea

n

fau

na

hab

itat

co

uld

occ

ur,

al

tho

ug

h a

fu

ll re

cove

ry w

ou

ld b

e ex

pe

cte

d

Hig

h

Exc

elle

nt

Su

rvey

D

ata

No

t A

pp

licab

leS

ect

ion

9

.7.5

.1

Su

bte

rra-

nea

n F

au

na

Co

nst

ruct

ion

E

arth

wo

rks

–

Sit

e P

rep

arat

ion

• L

oss

of

hab

itat

d

ue

to c

om

pa

ctio

n3

3M

ediu

m•

For

this

ris

k as

sess

men

t a

con

serv

ativ

e ap

pro

ach

as

sum

es a

wo

rst

case

th

at r

are

sub

terr

anea

n

fau

na

may

be

pre

sen

t

• R

etai

n v

eg

etat

ion

wh

erev

er

pra

ctic

able

• B

un

ds

to p

reve

nt

tid

al in

un

dat

ion

• S

urf

ace

wat

er m

ana

gem

ent

such

as

dra

ins,

set

tlem

ent

po

nd

s et

c

• D

ust

su

pp

ress

ion

as

req

uir

ed

• Im

ple

men

t P

AS

S m

ana

gem

ent

mea

sure

s

63

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at a

sh

ort

-ter

m im

pa

ct

to s

ub

terr

anea

n

fau

na

hab

itat

co

uld

occ

ur.

If a

n

imp

act

do

es

occ

ur,

a f

ull

reco

very

is

exp

ect

ed

Hig

h

Exc

elle

nt

Su

rvey

D

ata

No

t A

pp

licab

leS

ect

ion

9

.7.5

.1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Su

bte

rra-

nea

n F

au

na

Co

nst

ruct

ion

D

red

ge

Mat

eria

l P

lace

men

t A

rea

- Dew

ater

ing

of

Dre

dg

e M

ater

ial

• D

ire

ct im

pa

cts

du

e to

ch

ang

es in

g

rou

nd

wat

er

qu

alit

y

• L

oca

lise

d

chan

ges

to

th

e su

bte

rran

ean

fa

un

a h

abit

at d

ue

to c

han

ges

in t

he

hyd

rolo

gy

and

h

ydro

ge

olo

gy

of

the

area

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• T

he

pla

cem

ent

area

has

be

en

sele

cte

d to

re

du

ce t

he

foo

tpri

nt

use

d

• D

isch

arg

e o

f d

eca

nt

wat

er d

uri

ng

th

e fi

rst

18 t

o 2

4 m

on

ths

will

be

pu

mp

ed

via

pip

elin

e to

a m

arin

e o

utf

all

• G

rou

nd

wat

er m

on

ito

rin

g b

ore

s w

ill

be

inst

alle

d to

det

ect

an

y al

tera

tio

n

of

gro

un

dw

ater

co

nd

itio

ns

that

m

ay in

dic

ate

a p

ote

nti

al r

isk

to t

he

Ash

bu

rto

n D

elta

sys

tem

63

Ver

y

Low

• O

nly

tw

o s

pe

cies

o

f st

ygo

fau

na

hav

e b

een

loca

ted

w

ith

in t

he

Pro

ject

ar

ea, a

nd

bo

th

spe

cies

are

like

ly

to b

e w

ides

pre

ad

th

rou

gh

ou

t th

e P

ilbar

a. N

o

tro

glo

fau

na

hav

e b

een

loca

ted

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at a

sh

ort

-ter

m im

pa

ct

to s

ub

terr

anea

n

fau

na

hab

itat

co

uld

occ

ur.

If a

n

imp

act

do

es

occ

ur,

a f

ull

reco

very

is

exp

ect

ed

Hig

h

Exc

elle

nt

Su

rvey

D

ata

No

t A

pp

licab

leS

ect

ion

9

.7.5

.2

Ap

pen

dix

U

1

Su

bte

rra-

nea

n F

au

na

Op

erat

ion

s O

per

atio

nal

L

eaks

& S

pill

s –

Veh

icle

R

efu

ellin

g an

d

Bre

akd

ow

ns,

P

lan

t O

per

atio

ns

• D

ire

ct im

pa

cts

du

e to

ch

ang

es in

g

rou

nd

wat

er

qu

alit

y

33

Mediu

m•

For

this

ris

k as

sess

men

t a

con

serv

ativ

e ap

pro

ach

as

sum

es a

wo

rst

case

th

at r

are

sub

terr

anea

n

fau

na

may

be

pre

sen

t.

• A

pp

rop

riat

e st

ora

ge

vess

els,

co

nta

inm

ent

faci

litie

s, t

ran

sfer

e

qu

ipm

ent

and

han

dlin

g m

eth

od

s

• C

aptu

re a

nd

trea

tmen

t o

f ru

n-o

ff

fro

m o

per

atio

nal

are

as, f

uel

far

ms

and

bu

nd

ed

area

s

• A

pp

rop

riat

e sp

ill r

esp

on

se

eq

uip

men

t, e

mer

gen

cy r

esp

on

se

trai

nin

g an

d sp

ill c

on

tin

gen

cy

pla

nn

ing

55

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d th

ere

is a

re

mo

te li

kelih

oo

d

that

a lo

cal l

oss

of

a sm

all p

rop

ort

ion

o

f su

bte

rran

ean

fa

un

a h

abit

at

cou

ld o

ccu

r

Hig

h

Exc

elle

nt

Su

rvey

D

ata

No

t A

pp

licab

leS

ect

ion

9

.7.5

.3

Su

bte

rra-

nea

n F

au

na

Co

nst

ruct

ion

an

d O

per

atio

ns

Phy

sica

l P

rese

nce

of

Infr

astr

uct

ure

, (S

urf

ace

Wat

er

Dra

inag

e)-

Co

nst

ruct

ion

o

f Ro

ad/

Cau

sew

ay,

Lo

cati

on

of

Pla

nt

Pad

• C

han

ges

to

su

rfa

ce w

ater

fl

ow

s re

sult

ing

in

imp

act

s to

su

bte

rran

ean

h

abit

at

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• R

etai

n n

atu

ral d

rain

ag

e w

her

e p

ract

icab

le

• Fa

cilit

ies

des

ign

ed

to li

mit

imp

act

s to

su

rfa

ce w

ater

sys

tem

s

• C

ulv

erts

are

inco

rpo

rate

d in

to t

he

hyd

rod

ynam

ic fl

ow

mo

del

fo

r d

rain

ag

e cr

oss

ing

s tr

aver

sed

by

the

roa

d an

d in

fras

tru

ctu

re c

orr

ido

r

63

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

p

oss

ible

th

at a

sh

ort

-ter

m im

pa

ct

to s

ub

terr

anea

n

fau

na

hab

itat

co

uld

occ

ur.

If a

n

imp

act

do

es

occ

ur,

a f

ull

reco

very

is

exp

ect

ed

Hig

h

Exc

elle

nt

Su

rvey

D

ata

No

t A

pp

licab

leS

ect

ion

9

.7.5

.4



Su

bte

rra-

nea

n F

au

na

Ad

dit

ive

Eff

ect

s•

All

of

the

abo

ve-

No

t id

enti

fie

d in

E

nvi

ron

men

tal

Sco

pin

g D

ocu

men

t

• A

ll o

f th

e ab

ove

54

Ver

y

Low

• T

her

e ar

e n

o

tro

glo

fau

na

wit

hin

th

e su

rvey

are

a

• O

nly

tw

o s

pe

cies

o

f st

ygo

fau

na

hav

e b

een

loca

ted

w

ith

in t

he

Pro

ject

ar

ea, a

nd

bo

th

spe

cies

are

like

ly

to b

e w

ides

pre

ad

th

rou

gh

ou

t th

e P

ilbar

a

• O

vera

ll, t

he

Pro

ject

is

con

sid

ere

d to

h

ave

an o

vera

ll ve

ry lo

w r

esid

ual

ri

sk o

f h

avin

g a

sig

nifi

can

t im

pa

ct

on

th

e su

bte

rran

ean

fa

un

a o

f th

e P

roje

ct a

rea

Hig

h

Exc

elle

nt

surv

ey

dat

a

No

t A

pp

licab

leS

ect

ion

9

.7.8

Air

Qu

ality

Co

nst

ruct

ion

D

ust

g

ener

atio

n

– ve

get

atio

n

clea

rin

g

• D

ust

dep

osi

tio

n

lea

din

g to

ve

get

atio

n lo

ss.

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• D

ust

co

ntr

ol m

easu

res

will

be

un

der

take

n d

uri

ng

site

cle

aran

ce.

Th

ese

con

tro

l mea

sure

s w

ill b

e im

ple

men

ted

on

a c

ase

by

case

b

asis

an

d w

ill b

e d

epen

den

t o

n t

he

act

ivit

y in

volv

ed

and

the

pre

vaili

ng

w

eath

er c

on

dit

ion

s

• A

man

ag

emen

t p

lan

will

be

dev

elo

pe

d as

par

t o

f th

e C

EM

P w

ith

th

e ke

y o

bje

ctiv

e to

man

ag

e th

e g

ener

atio

n o

f d

ust

. A r

ang

e o

f m

ana

gem

ent

con

tro

ls a

nd

m

on

ito

rin

g p

roce

du

res

will

be

app

lied

as p

art

of

this

man

ag

emen

t p

lan

du

rin

g ke

y a

ctiv

itie

s at

th

e o

nsh

ore

dev

elo

pm

ent

area

52

Low

• T

he

site

p

rep

arat

ion

s in

volv

e si

te

clea

rin

g an

d th

e im

po

rt o

f m

ater

ial.

Th

e n

atu

re o

f th

e m

ater

ial i

s n

ot

yet

kno

wn

, ho

wev

er is

lik

ely

to r

eq

uir

e d

ust

man

ag

emen

t d

uri

ng

han

dlin

g

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a

sho

rt-t

erm

imp

act

to

gro

un

d-l

evel

co

nce

ntr

atio

ns

at

iden

tifi

ed

se

nsi

tive

re

cep

tors

re

pre

sen

t a

smal

l in

crea

se o

ver

the

bas

elin

e co

nd

itio

ns

Hig

h

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9.8

.5.1

Ap

pen

dix

U

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Mit

igati

on

s/M

an

agem

en

tR

esid

ual R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Air

Qu

ality

Co

nst

ruct

ion

an

d O

per

atio

ns

Du

st

gen

erat

ion

–

veh

icle

a

ctiv

ity

• D

ust

dep

osi

tio

n

lea

din

g to

ve

get

atio

n lo

ss

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

pe

ed

limit

s w

ill b

e u

sed

in t

he

con

stru

ctio

n a

rea

. Th

is w

ill a

ssis

t in

re

du

cin

g d

ust

gen

erat

ed

by

veh

icle

m

ove

men

ts

• E

arly

sea

ling

of

the

site

acc

ess

roa

ds

will

be

inve

stig

ate

d to

ass

ist

in m

inim

isin

g d

ust

gen

erat

ion

ca

use

d b

y ve

hic

le t

raffi

c

• A

man

ag

emen

t p

lan

will

be

dev

elo

pe

d as

par

t o

f th

e C

EM

P w

ith

th

e ke

y o

bje

ctiv

e to

man

ag

e th

e g

ener

atio

n o

f d

ust

. A r

ang

e o

f m

ana

gem

ent

con

tro

ls a

nd

m

on

ito

rin

g p

roce

du

res

will

be

app

lied

as p

art

of

this

man

ag

emen

t p

lan

du

rin

g ke

y a

ctiv

itie

s at

th

e o

nsh

ore

dev

elo

pm

ent

area

64

Ver

y

Low

• T

he

site

p

rep

arat

ion

s in

volv

e si

te

clea

rin

g an

d th

e im

po

rt o

f m

ater

ial.

Th

e n

atu

re o

f th

e m

ater

ial i

s n

ot

yet

kno

wn

, ho

wev

er is

lik

ely

to r

eq

uir

e d

ust

man

ag

emen

t d

uri

ng

han

dlin

g

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a

sho

rt-t

erm

imp

act

to

gro

un

d-l

evel

co

nce

ntr

atio

ns

at

iden

tifi

ed

se

nsi

tive

re

cep

tors

re

pre

sen

t a

smal

l in

crea

se o

ver

the

bas

elin

e co

nd

itio

ns

Hig

h

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9.8

.5.1

Ap

pen

dix

U

1

Air

Qu

ality

Co

nst

ruct

ion

an

d o

per

atio

ns

Du

st

gen

erat

ion

–

con

cret

e b

atch

ing

pla

nt

• D

ust

dep

osi

tio

n

lea

din

g to

ve

get

atio

n lo

ss

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• B

atch

ing

pla

nt

will

be

loca

ted

away

fr

om

sen

siti

ve r

ece

pto

rs, w

her

e p

ract

icab

le. S

tan

dar

d d

ust

co

ntr

ol

mea

sure

s fr

om

bat

chin

g p

lan

ts w

ill

be

imp

lem

ente

d

• S

pe

cifi

c d

ust

co

ntr

ol m

easu

res

may

b

e im

ple

men

ted

as p

art

of

the

stan

dar

d o

per

atio

n o

f th

e co

ncr

ete

bat

chin

g p

lan

t

• A

man

ag

emen

t p

lan

will

be

dev

elo

pe

d as

par

t o

f th

e C

EM

P w

ith

th

e ke

y o

bje

ctiv

e to

man

ag

e th

e g

ener

atio

n o

f d

ust

. A r

ang

e o

f m

ana

gem

ent

con

tro

ls a

nd

m

on

ito

rin

g p

roce

du

res

will

be

app

lied

as p

art

of

this

man

ag

emen

t p

lan

du

rin

g ke

y a

ctiv

itie

s at

th

e o

nsh

ore

dev

elo

pm

ent

area

44

Low

• T

he

site

p

rep

arat

ion

s in

volv

e si

te

clea

rin

g an

d th

e im

po

rt o

f m

ater

ial.

Th

e n

atu

re o

f th

e m

ater

ial i

s n

ot

yet

kno

wn

, ho

wev

er is

lik

ely

to r

eq

uir

e d

ust

man

ag

emen

t d

uri

ng

han

dlin

g

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a

sho

rt-t

erm

imp

act

to

gro

un

d-l

evel

co

nce

ntr

atio

ns

at

iden

tifi

ed

se

nsi

tive

re

cep

tors

re

pre

sen

tin

g an

in

crea

se o

ver

the

bas

elin

e co

nd

itio

ns

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

9.8

.5.1

Ap

pen

dix

U

1



Air

Qu

ality

Co

nst

ruct

ion

D

ust

g

ener

atio

n

– tr

ansp

ort

of

mat

eria

l

• D

ust

dep

osi

tio

n

lea

din

g to

ve

get

atio

n lo

ss

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• S

pe

ed

limit

s w

ill b

e in

pla

ce in

co

nst

ruct

ion

are

as. A

ny

mat

eria

l w

ith

th

e p

ote

nti

al t

o g

ener

ate

win

db

low

n d

ust

du

rin

g

tran

spo

rtat

ion

to

an

d fr

om

th

e co

nst

ruct

ion

are

a w

ill b

e co

vere

d

• A

man

ag

emen

t p

lan

will

be

dev

elo

pe

d as

par

t o

f th

e C

EM

P w

ith

th

e ke

y o

bje

ctiv

e to

man

ag

e th

e g

ener

atio

n o

f d

ust

. A r

ang

e o

f m

ana

gem

ent

con

tro

ls a

nd

m

on

ito

rin

g p

roce

du

res

will

be

app

lied

as p

art

of

this

man

ag

emen

t p

lan

du

rin

g ke

y a

ctiv

itie

s at

th

e o

nsh

ore

dev

elo

pm

ent

area

54

Ver

y

Low

• T

he

site

p

rep

arat

ion

s in

volv

e si

te

clea

rin

g an

d th

e im

po

rt o

f m

ater

ial.

Th

e n

atu

re o

f th

e m

ater

ial i

s n

ot

yet

kno

wn

, ho

wev

er is

lik

ely

to r

eq

uir

e d

ust

man

ag

emen

t d

uri

ng

han

dlin

g

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a

sho

rt-t

erm

imp

act

to

gro

un

d-l

evel

co

nce

ntr

atio

ns

at

iden

tifi

ed

se

nsi

tive

re

cep

tors

re

pre

sen

t a

smal

l in

crea

se o

ver

the

bas

elin

e co

nd

itio

ns

Hig

h

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9.8

.5.1

Ap

pen

dix

U

1

Air

Qu

ality

Co

nst

ruct

ion

an

d O

per

atio

ns

Du

st

gen

erat

ion

–

win

d er

osi

on

o

f b

are

surf

ace

s

• D

ust

dep

osi

tio

n

lea

din

g to

ve

get

atio

n lo

ss

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• G

rou

nd

clea

ran

ce le

ad

ing

to t

he

exp

osu

re o

f b

are

surf

ace

s w

ill b

e av

oid

ed

, wh

ere

pra

ctic

able

• S

tock

pile

s, if

re

qu

ire

d, w

ill h

ave

app

rop

riat

e d

ust

co

ntr

ol m

easu

res.

S

tock

pile

s w

ill b

e lo

cate

d, w

her

ever

p

ract

icab

le, a

way

fro

m s

ensi

tive

re

cep

tors

• A

man

ag

emen

t p

lan

will

be

dev

elo

pe

d as

par

t o

f th

e C

EM

P w

ith

th

e ke

y o

bje

ctiv

e to

man

ag

e th

e g

ener

atio

n o

f d

ust

. A r

ang

e o

f m

ana

gem

ent

con

tro

ls a

nd

m

on

ito

rin

g p

roce

du

res

will

be

app

lied

as p

art

of

this

man

ag

emen

t p

lan

du

rin

g ke

y a

ctiv

itie

s at

th

e o

nsh

ore

dev

elo

pm

ent

area

54

Ver

y

Low

• T

he

site

p

rep

arat

ion

s in

volv

e si

te

clea

rin

g an

d th

e im

po

rt o

f m

ater

ial.

Th

e n

atu

re o

f th

e m

ater

ial i

s n

ot

yet

kno

wn

, ho

wev

er is

lik

ely

to r

eq

uir

e d

ust

man

ag

emen

t d

uri

ng

han

dlin

g

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a

sho

rt-t

erm

imp

act

to

gro

un

d-l

evel

co

nce

ntr

atio

ns

at

iden

tifi

ed

se

nsi

tive

re

cep

tors

re

pre

sen

t a

smal

l in

crea

se o

ver

the

bas

elin

e co

nd

itio

ns

Hig

h

Lo

ng

term

m

on

ito

rin

g

resu

lts

avai

lab

le

No

t A

pp

licab

leS

ect

ion

9.8

.5.1

Ap

pen

dix

U

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Mit

igati

on

s/M

an

agem

en

tR

esid

ual R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Air

Qu

alit

yC

on

stru

ctio

nO

ther

at

mo

sph

eric

em

issi

on

s

• R

ed

uct

ion

of

air

qu

alit

y le

ad

ing

to

hu

man

hea

lth

an

d

envi

ron

men

tal

imp

act

s

51

Mediu

m•

Ran

kin

g

con

sid

ere

d

po

ten

tial

co

mm

un

ity

con

cern

s, a

nd

fu

rth

er d

etai

led

m

od

ellin

g w

ill b

e ta

ken

• A

ll e

qu

ipm

ent

will

be

wel

l m

ain

tain

ed

and

com

ply

wit

h

Au

stra

lian

Sta

nd

ard

s an

d

Re

gu

lati

on

s

• C

lear

ing

act

ivit

ies

will

be

red

uce

d,

wh

ere

pra

ctic

able

65

Ver

y

Low

• O

ther

at

mo

sph

eric

em

issi

on

s d

uri

ng

th

e co

nst

ruct

ion

p

has

e ar

e lik

ely

to

be

asso

ciat

ed

wit

h

mar

ine

vess

el

eng

ines

, a

dd

itio

nal

air

line

flig

hts

to

an

d fr

om

O

nsl

ow

an

d fr

om

ve

hic

les

and

e

qu

ipm

ent

req

uir

ed

to

sup

po

rt

con

stru

ctio

n

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

th

ere

is o

nly

a r

emo

te

chan

ce t

hat

th

ere

will

be

mea

sura

ble

ai

r q

ual

ity

imp

act

s as

soci

ate

d w

ith

o

ther

atm

osp

her

ic

emis

sio

ns

gen

erat

ed

du

rin

g

con

stru

ctio

n

Low

No

mo

del

ling

co

nd

uct

ed

No

t A

pp

licab

leS

ect

ion

9.8

.5.1

Air

Qu

alit

yO

per

atio

ns

Air

Em

issi

on

s•

Re

du

ced

air

qu

alit

y as

a r

esu

lt

of

emis

sio

n o

f p

ollu

tan

ts f

rom

th

e fa

cilit

y d

uri

ng

p

roce

ssin

g

lea

din

g to

imp

act

s o

n h

um

an h

ealt

h

and

the

envi

ron

men

t

51

Mediu

m•

Ran

kin

g

con

sid

ere

d

po

ten

tial

co

mm

un

ity

con

cern

s, a

nd

fu

rth

er d

etai

led

m

od

ellin

g w

ill b

e ta

ken

• M

ana

gem

ent

of

the

pro

cess

ing

o

per

atio

n t

o r

ed

uce

po

lluti

ng

em

issi

on

s as

low

as

reas

on

ably

p

ract

icab

le

• R

eg

ula

r m

ain

ten

ance

of

eq

uip

men

t fo

r g

oo

d p

erfo

rman

ce a

nd

red

uce

d

emis

sio

ns

• P

lan

nin

g o

f n

on

-ro

uti

ne

(pla

nn

ed

) m

ain

ten

ance

sh

utd

ow

ns

to r

ed

uce

em

issi

on

s, w

her

e p

ract

icab

le

• O

ng

oin

g m

on

ito

rin

g o

f em

issi

on

s fr

om

th

e fa

cilit

y to

det

erm

ine

the

leve

l of

po

lluti

ng

emis

sio

ns

• Im

ple

men

tati

on

of

rem

ed

ial a

ctio

n

sho

uld

em

issi

on

leve

ls e

xce

ed

a

gre

ed

leve

ls

54

Ver

y

Low

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

th

ere

is o

nly

a r

emo

te

chan

ce t

hat

th

ere

will

be

mea

sura

ble

ai

r q

ual

ity

imp

act

s fr

om

air

em

issi

on

s as

soci

ate

d w

ith

th

e o

per

atio

ns

• T

he

resi

du

al r

isk

ran

kin

g h

as b

een

o

bta

ine

d as

it is

lik

ely

that

a

sho

rt-t

erm

imp

act

to

gro

un

d-l

evel

co

nce

ntr

atio

ns

at

iden

tifi

ed

se

nsi

tive

re

cep

tors

re

pre

sen

t a

smal

l in

crea

se o

ver

the

bas

elin

e co

nd

itio

ns

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

9.8

.5.2



Air

Qu

alit

yA

dd

itiv

e E

ffe

cts

• A

ll o

f th

e ab

ove

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• A

ll o

f th

e ab

ove

52

Low

• T

he

ad

dit

ive

risk

ra

nki

ng

has

be

en

ob

tain

ed

as it

is

likel

y th

at a

sh

ort

-ter

m im

pa

ct

to g

rou

nd

-lev

el

con

cen

trat

ion

s at

id

enti

fie

d

sen

siti

ve

rece

pto

rs

rep

rese

nt

a sm

all

incr

ease

ove

r th

e b

asel

ine

con

dit

ion

s; a

nd

th

ere

is o

nly

a

rem

ote

ch

ance

th

at t

her

e w

ill b

e m

easu

rab

le a

ir

qu

alit

y im

pa

cts

asso

ciat

ed

wit

h

the

Pro

ject

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

9

.8.8



Table

1.7

: Soci

al R

isk

Ass

essm

ent

Su

mm

ary

For

det

ails

on

th

e ri

sk r

anki

ng

pro

ced

ure

, in

clu

din

g co

nse

qu

ence

an

d lik

elih

oo

d d

efin

itio

ns

spec

ific

to e

ach

fac

tor,

ref

er t

o C

hap

ter

7, Im

pac

t A

sses

smen

t M

eth

od

olo

gy

and

C

hap

ter

10, S

oci

al R

isk

Ass

essm

ent

and

Man

agem

ent.

No

te t

hat

“C

” re

fers

to

Co

nse

qu

ence

an

d “L

” re

fers

to

Lik

elih

oo

d.

Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Rec

reati

on

al

Fis

hin

gC

on

stru

ctio

nD

red

gin

g•

Re

du

ced

re

crea

tio

nal

fi

shin

g

op

po

rtu

nit

y d

ue

to

de

crea

sed

fish

st

ock

s as

a

con

seq

uen

ce o

f cl

eari

ng

crit

ical

h

abit

ats

33

Mediu

m•

Lev

el o

f im

pa

ct

to b

e d

eter

min

ed

th

rou

gh

det

aile

d

con

sult

atio

n w

ith

fi

sher

y au

tho

riti

es a

nd

d

epen

den

cy

anal

ysis

of

loca

l fi

sher

s in

p

ote

nti

al

excl

usi

on

zo

nes

• D

red

gin

g im

pa

cts

will

be

man

ag

ed

th

rou

gh

a D

SD

MP

• C

hev

ron

will

eva

luat

e th

e su

itab

ility

o

f in

vest

men

t in

re

crea

tio

n

act

ivit

ies

and

faci

litie

s fo

r th

e g

ener

al c

om

mu

nit

y as

par

t o

f it

s fu

ture

so

cial

inve

stm

ent

stra

teg

y

53

Low

• C

riti

cal h

abit

ats

will

re

cove

r fr

om

d

red

gin

g im

pa

cts

• N

o h

abit

ats

in t

he

area

are

kn

ow

n t

o

be

crit

ical

fo

r th

e o

ng

oin

g su

cces

s o

f m

arin

e fa

un

a p

op

ula

tio

ns

• Tu

rbid

ity

imp

act

s o

n w

ater

qu

alit

y d

uri

ng

dre

dg

ing

o

per

atio

ns

are

con

sid

ere

d

un

likel

y to

si

gn

ifica

ntl

y af

fect

fi

sher

ies

in t

he

area

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea

Rea

son

able

Mo

del

ling

co

nd

uct

ed

and

su

rvey

dat

a av

aila

ble

No

t A

pp

licab

leS

ect

ion

10.4

Ap

pen

dix

S

1



Rec

reati

on

al

Fis

hin

gC

on

stru

ctio

nF

ish

ing

by

Pro

ject

w

ork

forc

e

• R

ed

uce

d ca

tch

d

ue

to fi

shin

g b

y P

roje

ct w

ork

forc

e in

loca

l wat

ers

and

o

ffsh

ore

isla

nd

s

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• B

oat

s an

d re

crea

tio

nal

veh

icle

s w

ill

no

t b

e p

erm

itte

d w

ith

in t

he

wo

rkfo

rce

acc

om

mo

dat

ion

vill

ag

e o

r th

e a

cces

s ro

ad

fro

m t

he

On

slo

w

Ro

ad

• B

ehav

iou

r st

and

ard

s to

be

exp

ect

ed

fro

m a

ll co

nst

ruct

ion

w

ork

ers

will

be

clea

rly

arti

cula

ted

in

a R

ecr

eati

on

Co

de

of

Co

nd

uct

. C

on

stru

ctio

n w

ork

ers

will

be

aske

d

to s

ign

th

e C

od

e o

f C

on

du

ct

• A

co

mm

un

ity

fee

db

ack

pro

ced

ure

w

ill b

e es

tab

lish

ed

wh

ereb

y an

y co

mp

lain

ts f

rom

th

e co

mm

un

ity

abo

ut

un

acc

epta

ble

beh

avio

ur

fro

m

con

stru

ctio

n w

ork

ers

will

be

inve

stig

ate

d an

d w

her

e n

ece

ssar

y ap

pro

pri

ate

act

ion

tak

en

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

Fis

her

ies

to r

ed

uce

p

ote

nti

al r

isks

to

th

e ex

isti

ng

re

crea

tio

nal

fish

ery

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

En

viro

nm

ent

and

C

on

serv

atio

n t

o r

ed

uce

po

ten

tial

ri

sks

fro

m e

xces

sive

re

crea

tio

nal

u

se o

f th

e is

lan

ds

wit

hin

a 2

5km

ra

diu

s o

f O

nsl

ow

• Fo

r sa

fety

rea

son

s, r

ecr

eati

on

al

act

ivit

ies

such

as

fish

ing

will

no

t b

e p

erm

itte

d w

ith

in t

he

nea

rsh

ore

ex

clu

sio

n z

on

es (

for

exam

ple

, MO

F an

d P

LF

)

33

Mediu

m•

Targ

et fi

sh s

pe

cies

ar

e w

ell

rep

rese

nte

d in

th

e lo

cal a

nd

reg

ion

al

area

, ho

wev

er t

he

low

pro

du

ctiv

ity

of

oce

anic

wat

ers

in

the

Pilb

ara

mea

ns

it is

po

ssib

le

(alt

ho

ug

h u

nlik

ely)

th

at fi

sh

po

pu

lati

on

s co

uld

b

e o

verfi

she

d.

Th

eref

ore

, C

hev

ron

has

p

rop

ose

d a

nu

mb

er o

f m

ana

gem

ent

mea

sure

s to

re

du

ce t

he

imp

act

o

f fi

shin

g b

y th

e P

roje

ct w

ork

forc

e in

loca

l wat

ers

and

n

ears

ho

re is

lan

ds

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Ext

ent

of

acc

ess

rest

rict

ion

s cu

rren

tly

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.4



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Rec

reati

on

al

Fis

hin

gO

per

atio

ns

Ph

ysic

al

Pre

sen

ce o

f In

fras

tru

ctu

re

• R

ed

uce

d

recr

eati

on

al

fish

ing

o

pp

ort

un

ity

as a

re

sult

of

rest

rict

ed

a

cces

s

33

Mediu

m•

Lev

el o

f im

pa

ct

to b

e d

eter

min

ed

th

rou

gh

det

aile

d

con

sult

atio

n w

ith

ke

y st

akeh

old

ers.

• Fo

r sa

fety

rea

son

s, r

ecr

eati

on

al

act

ivit

ies

such

as

fish

ing

will

no

t b

e p

erm

itte

d w

ith

in t

he

nea

rsh

ore

ex

clu

sio

n z

on

es (

for

exam

ple

, MO

F an

d P

LF

)

• C

hev

ron

will

eva

luat

e th

e su

itab

ility

o

f in

vest

men

t in

re

crea

tio

n

act

ivit

ies

and

faci

litie

s fo

r th

e g

ener

al c

om

mu

nit

y as

par

t o

f it

s fu

ture

so

cial

inve

stm

ent

stra

teg

y

33

Mediu

m•

It is

like

ly t

hat

a

cces

s to

Ho

ole

y C

reek

by

lan

d w

ill

no

lon

ger

be

po

ssib

le d

ue

to

safe

ty e

xclu

sio

n

zon

es

• S

om

e re

stri

cte

d

acc

ess

du

e to

ex

clu

sio

n z

on

es is

re

qu

ire

d fo

r p

ub

lic

safe

ty

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Ext

ent

of

acc

ess

rest

rict

ion

s cu

rren

tly

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.4

Rec

reati

on

al

Fis

hin

gO

per

atio

ns

Fis

hin

g b

y P

roje

ct

wo

rkfo

rce

• R

ed

uce

d ca

tch

d

ue

to fi

shin

g b

y P

roje

ct w

ork

forc

e in

loca

l wat

ers

and

o

ffsh

ore

isla

nd

s

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

Fis

her

ies

to r

ed

uce

p

ote

nti

al r

isks

to

th

e ex

isti

ng

re

crea

tio

nal

fish

ery

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

En

viro

nm

ent

and

C

on

serv

atio

n t

o r

ed

uce

po

ten

tial

ri

sks

fro

m e

xces

sive

re

crea

tio

nal

u

se o

f th

e is

lan

ds

wit

hin

a 2

5km

ra

diu

s o

f O

nsl

ow

• Fo

r sa

fety

rea

son

s, r

ecr

eati

on

al

act

ivit

ies

such

as

fish

ing

will

no

t b

e p

erm

itte

d w

ith

in t

he

nea

rsh

ore

ex

clu

sio

n z

on

es (

for

exam

ple

, MO

F an

d P

LF

)

33

Mediu

m•

Po

ten

tial

imp

act

s o

n r

ecr

eati

on

al

fish

ing

by

the

Pro

ject

wo

rkfo

rce

will

be

sig

nifi

can

tly

less

du

rin

g th

e o

per

atio

ns

ph

ase

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea, h

ow

ever

th

e lo

w p

rod

uct

ivit

y o

f o

cean

ic w

ater

s in

th

e P

ilbar

a m

ean

s it

is p

oss

ible

(a

lth

ou

gh

un

likel

y)

that

fish

p

op

ula

tio

ns

cou

ld

be

ove

rfish

ed

. T

her

efo

re,

Ch

evro

n h

as

pro

po

sed

a n

um

ber

of

man

ag

emen

t m

easu

res

to

red

uce

th

e im

pa

ct

of

fish

ing

by

the

Pro

ject

wo

rkfo

rce

in lo

cal w

ater

s an

d

nea

rsh

ore

isla

nd

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Ext

ent

of

acc

ess

rest

rict

ion

s cu

rren

tly

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.4



Rec

reati

on

al

Fis

hin

gA

dd

itiv

e E

ffe

cts

• R

ed

uce

d ca

tch

d

ue

to P

roje

ct-

rela

ted

eco

log

ical

ch

ang

es, e

xclu

sio

n

zon

es, r

estr

icte

d

acc

ess,

ves

sel

mo

vem

ents

or

fish

ing

by

Pro

ject

w

ork

forc

e

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• B

oat

s an

d re

crea

tio

nal

veh

icle

s

will

no

t b

e p

erm

itte

d w

ith

in t

he

wo

rkfo

rce

acc

om

mo

dat

ion

vill

ag

e o

r th

e a

cces

s ro

ad

fro

m t

he

On

slo

w

Ro

ad

• B

ehav

iou

r st

and

ard

s to

be

exp

ect

ed

fro

m a

ll co

nst

ruct

ion

w

ork

ers

will

be

clea

rly

arti

cula

ted

in

a R

ecr

eati

on

Co

de

of

Co

nd

uct

. C

on

stru

ctio

n w

ork

ers

will

be

aske

d

to s

ign

th

e C

od

e o

f C

on

du

ct

• A

co

mm

un

ity

fee

db

ack

pro

ced

ure

w

ill b

e es

tab

lish

ed

wh

ereb

y an

y co

mp

lain

ts f

rom

th

e co

mm

un

ity

abo

ut

un

acc

epta

ble

beh

avio

ur

fro

m

con

stru

ctio

n w

ork

ers

will

be

inve

stig

ate

d an

d w

her

e n

ece

ssar

y ap

pro

pri

ate

act

ion

tak

en

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

Fis

her

ies

to r

ed

uce

p

ote

nti

al r

isks

to

th

e ex

isti

ng

re

crea

tio

nal

fish

ery

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

En

viro

nm

ent

and

C

on

serv

atio

n t

o r

ed

uce

po

ten

tial

ri

sks

fro

m e

xces

sive

re

crea

tio

nal

u

se o

f th

e is

lan

ds

wit

hin

a 2

5km

ra

diu

s o

f O

nsl

ow

• Fo

r sa

fety

rea

son

s, r

ecr

eati

on

al

act

ivit

ies

such

as

fish

ing

will

no

t b

e p

erm

itte

d w

ith

in t

he

nea

rsh

ore

ex

clu

sio

n z

on

es (

for

exam

ple

, MO

F an

d P

LF

)

• C

hev

ron

will

eva

luat

e th

e su

itab

ility

o

f in

vest

men

t in

re

crea

tio

n

act

ivit

ies

and

faci

litie

s fo

r th

e g

ener

al c

om

mu

nit

y as

par

t o

f it

s fu

ture

so

cial

inve

stm

ent

stra

teg

y

• D

red

gin

g im

pa

cts

will

be

man

ag

ed

th

rou

gh

a D

SD

MP

33

Mediu

m•

Dre

dg

ing

imp

act

s w

ill b

e ep

iso

dic

an

d af

fect

s w

ill b

e lim

ite

d to

th

e ar

ea

of

dre

dg

ing

• E

xclu

sio

n z

on

es

will

on

ly a

ffe

ct a

sm

all p

rop

ort

ion

o

f fi

shin

g ar

eas

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea, h

ow

ever

th

e lo

w p

rod

uct

ivit

y o

f o

cean

ic w

ater

s in

th

e P

ilbar

a m

ean

s it

is p

oss

ible

(a

lth

ou

gh

un

likel

y)

that

fish

p

op

ula

tio

ns

cou

ld

be

ove

rfish

ed

. T

her

efo

re,

Ch

evro

n h

as

pro

po

sed

a n

um

ber

of

man

ag

emen

t m

easu

res

to

red

uce

th

e im

pa

ct

of

fish

ing

by

the

Pro

ject

wo

rkfo

rce

in lo

cal w

ater

s an

d

nea

rsh

ore

isla

nd

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Ext

ent

of

acc

ess

rest

rict

ion

s cu

rren

tly

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.4

Ap

pen

dix

S

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Com

mer

cial

Fis

hin

g &

P

earl

ing

Co

nst

ruct

ion

D

red

gin

g•

Re

du

ced

co

mm

erci

al c

atch

d

ue

to:

•

De

crea

sed

fish

st

ock

s as

a

con

seq

uen

ce o

f cl

eari

ng

crit

ical

h

abit

ats,

in

crea

sed

tu

rbid

ity,

se

dim

enta

tio

n

and

ligh

t at

ten

uat

ion

or

oth

er e

colo

gic

al

chan

ges

th

at

resu

lt f

rom

d

red

gin

g

•

Tem

po

rary

ex

clu

sio

n z

on

es

du

rin

g d

red

gin

g

or

incr

ease

d

vess

el

mo

vem

ents

•

De

crea

sed

fish

st

ock

s as

a

con

seq

uen

ce o

f cl

eari

ng

crit

ical

h

abit

ats

33

Mediu

m•

Lev

el o

f im

pa

ct

to b

e d

eter

min

ed

th

rou

gh

det

aile

d

con

sult

atio

n w

ith

fi

sher

y au

tho

riti

es a

nd

d

epen

den

cy

anal

ysis

of

loca

l fi

sher

s in

p

ote

nti

al

excl

usi

on

zo

nes

• D

red

gin

g im

pa

cts

will

be

man

ag

ed

th

rou

gh

a D

SD

MP.

• C

hev

ron

will

cre

ate

a co

mm

erci

al

fish

ing

ind

ust

ry li

aiso

n r

ole

to

liai

se

bet

we

en C

hev

ron

an

d co

mm

erci

al

fish

ers

33

Mediu

m•

Dre

dg

ing

imp

act

s w

ill b

e ep

iso

dic

an

d im

pa

cts

will

b

e lim

ite

d to

th

e ar

ea o

f d

red

gin

g

• E

xclu

sio

n z

on

es

du

rin

g d

red

gin

g

will

be

tem

po

rary

an

d im

pa

cts

will

o

nly

aff

ect

a s

mal

l p

rop

ort

ion

of

fish

ing

area

s

• C

riti

cal h

abit

ats

will

re

cove

r fr

om

d

red

gin

g im

pa

cts

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea

• N

on

e o

f th

e co

ral-

ob

ligat

e fi

sh

spe

cies

in t

he

area

ar

e kn

ow

n t

o b

e en

dem

ic t

o t

he

Pro

ject

are

a an

d

affe

cte

d

po

pu

lati

on

s w

ill

reco

ver

thro

ug

h

recr

uit

men

t fr

om

su

rro

un

din

g ar

eas

on

ce t

he

hab

itat

h

as r

eco

vere

d

Rea

son

able

Mo

del

ling

co

nd

uct

ed

and

su

rvey

dat

a av

aila

ble

No

t A

pp

licab

leS

ect

ion

10.4

Ap

pen

dix

S

1

Com

mer

cial

Fis

hin

g &

P

earl

ing

Co

nst

ruct

ion

Co

nst

ruct

ion

A

ctiv

itie

s•

Re

du

ced

catc

h

du

e to

res

tric

ted

a

cces

s (e

xclu

sio

n

zon

es)

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

hev

ron

will

cre

ate

a co

mm

erci

al

fish

ing

ind

ust

ry li

aiso

n r

ole

to

liai

se

bet

we

en C

hev

ron

an

d co

mm

erci

al

fish

ers

• Fo

r sa

fety

rea

son

s, r

ecr

eati

on

al

act

ivit

ies

such

as

fish

ing

will

no

t b

e p

erm

itte

d w

ith

in t

he

nea

rsh

ore

ex

clu

sio

n z

on

es (

for

exam

ple

, MO

F an

d P

LF

)

44

Low

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea a

nd

fish

ing

a

ctiv

itie

s ca

n

relo

cate

to

oth

er

sect

ion

s o

f th

e fi

sher

ies

• E

xclu

sio

n z

on

es

will

on

ly a

ffe

ct a

sm

all p

rop

ort

ion

o

f fi

shin

g ar

eas

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Imp

ort

ance

/p

rese

nce

of

nu

rser

ies,

rel

ate

d

chan

ges

to

p

rod

uct

ivit

y o

f fi

sher

ies

and

full

foo

tpri

nt

of

dev

elo

pm

ent

is

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.4



Com

mer

cial

Fis

hin

g &

P

earl

ing

Co

nst

ruct

ion

Fis

hin

g b

y P

roje

ct

Co

nst

ruct

ion

W

ork

forc

e

• R

ed

uce

d ca

tch

d

ue

to fi

shin

g b

y co

nst

ruct

ion

w

ork

ers

in lo

cal

wat

ers

and

n

ears

ho

re is

lan

ds

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

Fis

her

ies

to r

ed

uce

p

ote

nti

al r

isks

to

th

e ex

isti

ng

re

crea

tio

nal

fish

ery

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

En

viro

nm

ent

and

C

on

serv

atio

n t

o r

ed

uce

po

ten

tial

ri

sks

fro

m e

xces

sive

re

crea

tio

nal

u

se o

f th

e is

lan

ds

wit

hin

a 2

5km

ra

diu

s o

f O

nsl

ow

43

Low

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea, h

ow

ever

th

e lo

w p

rod

uct

ivit

y o

f o

cean

ic w

ater

s in

th

e P

ilbar

a m

ean

s it

is p

oss

ible

(a

lth

ou

gh

un

likel

y)

that

fish

p

op

ula

tio

ns

cou

ld

be

ove

rfish

ed

. T

her

efo

re,

Ch

evro

n h

as

pro

po

sed

a n

um

ber

of

man

ag

emen

t m

easu

res

to

red

uce

th

e im

pa

ct

of

fish

ing

by

the

Pro

ject

wo

rkfo

rce

in lo

cal w

ater

s an

d

nea

rsh

ore

isla

nd

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Ext

ent

of

acc

ess

rest

rict

ion

s cu

rren

tly

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.4

Com

mer

cial

Fis

hin

g &

P

earl

ing

Op

erat

ion

sP

hys

ical

P

rese

nce

of

Infr

astr

uct

ure

• R

ed

uce

d

com

mer

cial

cat

ch

as a

res

ult

of

rest

rict

ed

acc

ess

• R

ed

uce

d

com

mer

cial

cat

ch

du

e to

per

man

ent

dam

ag

e to

cri

tica

l h

abit

ats

affe

ctin

g

sto

cks

of

avai

lab

le

for

fish

ers

33

Mediu

m•

Lev

el o

f im

pa

ct

to b

e d

eter

min

ed

th

rou

gh

det

aile

d

con

sult

atio

n w

ith

ke

y st

akeh

old

ers

• C

hev

ron

will

cre

ate

a co

mm

erci

al

fish

ing

ind

ust

ry li

aiso

n r

ole

to

liai

se

bet

we

en C

hev

ron

an

d co

mm

erci

al

fish

ers

44

Low

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea

• E

xclu

sio

n z

on

es

will

on

ly a

ffe

ct a

sm

all p

rop

ort

ion

o

f fi

shin

g ar

eas

• In

form

atio

n o

n

sust

ain

able

fish

ing

p

ract

ices

will

be

incl

ud

ed

in t

he

ind

uct

ion

of

the

con

stru

ctio

n

wo

rkfo

rce

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Imp

ort

ance

/p

rese

nce

of

nu

rser

ies,

re

late

d ch

ang

es

to p

rod

uct

ivit

y o

f fi

sher

ies

and

fu

ll fo

otp

rin

t o

f d

evel

op

men

t is

u

nce

rtai

n

No

t A

pp

licab

leS

ect

ion

10.4



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Com

mer

cial

Fis

hin

g &

P

earl

ing

Op

erat

ion

sO

per

atio

nal

A

ctiv

itie

s in

clu

din

g

Mai

nte

nan

ce

Dre

dg

ing

• R

ed

uce

d ca

tch

d

ue

to fi

shin

g b

y o

per

atio

nal

w

ork

ers

in lo

cal

wat

ers

and

n

ears

ho

re is

lan

ds

• C

han

ge

d

com

mu

nit

y id

enti

ty if

co

mm

erci

al

fish

ing

ind

ust

ry

de

clin

es in

On

slo

w

• R

ed

uce

d

com

mer

cial

cat

ch

du

e to

de

crea

sed

fi

sh s

tock

s as

a

con

seq

uen

ce o

f cl

eari

ng

crit

ical

h

abit

ats

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

hev

ron

will

cre

ate

a co

mm

erci

al

fish

ing

ind

ust

ry li

aiso

n r

ole

to

liai

se

bet

we

en C

hev

ron

an

d co

mm

erci

al

fish

ers

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

Fis

her

ies

to r

ed

uce

p

ote

nti

al r

isks

to

th

e ex

isti

ng

re

crea

tio

nal

fish

ery

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

En

viro

nm

ent

and

C

on

serv

atio

n t

o r

ed

uce

po

ten

tial

ri

sks

fro

m e

xces

sive

re

crea

tio

nal

u

se o

f th

e is

lan

ds

wit

hin

a 2

5km

ra

diu

s o

f O

nsl

ow

• D

red

gin

g im

pa

cts

will

be

man

ag

ed

th

rou

gh

a D

SD

MP

• T

her

e w

ill b

e a

role

wit

hin

Ch

evro

n

wh

o w

ill li

aise

wit

h c

om

mer

cial

fi

sher

s o

n d

red

gin

g an

d o

ther

m

arin

e co

nst

ruct

ion

act

ivit

ies

43

Low

• In

form

atio

n o

n

sust

ain

able

fish

ing

p

ract

ices

will

be

incl

ud

ed

in t

he

ind

uct

ion

of

the

op

erat

ion

al

wo

rkfo

rce

• C

hev

ron

will

m

on

ito

r ke

y co

mm

un

ity

soci

al

ind

icat

ors

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Mo

del

ling

co

nd

uct

ed

and

su

rvey

dat

a av

aila

ble

No

t A

pp

licab

leS

ect

ion

10.4

Ap

pen

dix

S

1

Com

mer

cial

Fis

hin

g &

P

earl

ing

Ad

dit

ive

Eff

ect

s •

Re

du

ced

catc

h

du

e to

Pro

ject

-re

late

d e

colo

gic

al

chan

ges

, exc

lusi

on

zo

nes

, res

tric

ted

a

cces

s, v

esse

l m

ove

men

ts o

r fi

shin

g b

y P

roje

ct

wo

rkfo

rce

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

hev

ron

will

cre

ate

a co

mm

erci

al

fish

ing

ind

ust

ry li

aiso

n r

ole

to

liai

se

bet

we

en C

hev

ron

an

d co

mm

erci

al

fish

ers

• D

red

gin

g im

pa

cts

will

be

man

ag

ed

th

rou

gh

a D

SD

MP

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

Fis

her

ies

to r

ed

uce

p

ote

nti

al r

isks

to

th

e ex

isti

ng

re

crea

tio

nal

fish

ery

• C

hev

ron

will

wo

rk w

ith

th

e W

A

Dep

artm

ent

of

En

viro

nm

ent

and

C

on

serv

atio

n t

o r

ed

uce

po

ten

tial

ri

sks

fro

m e

xces

sive

re

crea

tio

nal

u

se o

f th

e is

lan

ds

wit

hin

a 2

5km

ra

diu

s o

f O

nsl

ow

• Fo

r sa

fety

rea

son

s, r

ecr

eati

on

al

act

ivit

ies

such

as

fish

ing

will

no

t b

e p

erm

itte

d w

ith

in t

he

nea

rsh

ore

ex

clu

sio

n z

on

es (

for

exam

ple

, MO

F an

d P

LF

)

33

Mediu

m•

Dre

dg

ing

imp

act

s w

ill b

e ep

iso

dic

an

d af

fect

s w

ill b

e lim

ite

d to

th

e ar

ea

of

dre

dg

ing

• E

xclu

sio

n z

on

es

will

on

ly a

ffe

ct a

sm

all p

rop

ort

ion

o

f fi

shin

g ar

eas

• Ta

rget

fish

sp

eci

es

are

wel

l re

pre

sen

ted

in t

he

loca

l an

d re

gio

nal

ar

ea

• In

form

atio

n o

n

sust

ain

able

fish

ing

p

ract

ices

will

be

incl

ud

ed

in t

he

ind

uct

ion

of

the

con

stru

ctio

n a

nd

o

per

atio

nal

w

ork

forc

es

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

10.4

Ap

pen

dix

S

1



Rec

reati

on

Co

nst

ruct

ion

D

red

gin

g•

Re

du

ced

mar

ine

recr

eati

on

al

act

ivit

y d

ue

to

excl

usi

on

zo

nes

or

red

uce

d vi

sib

ility

as

a r

esu

lt o

f In

crea

sed

silt

in

cre

eks,

wat

erw

ays

and

sea

• Te

mp

ora

ry

red

uct

ion

of

mar

ine

recr

eati

on

al

act

ivit

ies

du

e to

te

mp

ora

ry

excl

usi

on

zo

nes

or

red

uce

d vi

sib

ility

as

a r

esu

lt o

f In

crea

sed

silt

in

cre

eks,

wat

erw

ays

and

sea

du

rin

g

mai

nte

nan

ce

dre

dg

ing

52

Low

• L

evel

of

imp

act

to

be

det

erm

ine

d

thro

ug

h

con

sult

atio

n w

ith

re

crea

tio

nal

u

sers

• C

hev

ron

will

eva

luat

e th

e su

itab

ility

o

f in

vest

men

t in

re

crea

tio

n

act

ivit

ies

and

faci

litie

s fo

r th

e g

ener

al c

om

mu

nit

y as

par

t o

f it

s fu

ture

so

cial

inve

stm

ent

stra

teg

y

51

Mediu

m•

So

cial

inve

stm

ent

fun

din

g w

ill b

e av

aila

ble

fo

r co

mm

un

ity

pro

ject

s

Rea

son

able

Mo

del

ling

co

nd

uct

ed

.

Ext

ent

of

excl

usi

on

zo

nes

cu

rren

tly

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.5

Rec

reati

on

Co

nst

ruct

ion

Ho

usi

ng

of

Co

nst

ruct

ion

W

ork

forc

e

• R

ed

uce

d a

cces

s to

te

mp

ora

ry

tou

rism

a

cco

mm

od

atio

n

du

e to

use

of

acc

om

mo

dat

ion

b

y co

nst

ruct

ion

w

ork

forc

e

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• P

roje

ct im

pa

cts

on

to

uri

sm

acc

om

mo

dat

ion

will

be

red

uce

d

thro

ug

h p

rovi

sio

n o

f a

cco

mm

od

atio

n f

or

all c

on

stru

ctio

n

wo

rker

s as

soci

ate

d w

ith

th

e P

roje

ct

52

Low

• A

ll w

ork

ers

asso

ciat

ed

wit

h

the

Pro

ject

will

be

ho

use

d at

th

e a

cco

mm

od

atio

n

villa

ge.

Th

ere

may

b

e so

me

sho

rt-t

erm

im

pa

cts

wh

ile t

he

acc

om

mo

dat

ion

vi

llag

e is

bei

ng

co

nst

ruct

ed

.

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

10.5

Rec

reati

on

Co

nst

ruct

ion

Ho

usi

ng

of

Res

iden

ts w

ho

R

elo

cate

du

e to

Eco

no

mic

O

pp

ort

un

itie

s

• R

ed

uce

d a

cces

s to

te

mp

ora

ry

tou

rism

a

cco

mm

od

atio

n

du

e to

po

pu

lati

on

g

row

th in

du

ced

by

the

Pro

ject

• R

ed

uce

d a

cces

s to

te

mp

ora

ry

tou

rism

a

cco

mm

od

atio

n

du

e to

use

of

acc

om

mo

dat

ion

b

y w

ork

forc

e o

f in

fras

tru

ctu

re

and

/or

con

stru

ctio

n

pro

ject

s in

du

ced

b

y th

e P

roje

ct

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• M

ana

gem

ent

of

po

pu

lati

on

gro

wth

is

bey

on

d C

hev

ron

’s c

on

tro

l an

d

ther

efo

re is

no

t w

ith

in C

hev

ron

’s

sco

pe

of

resp

on

sib

ility

.

• M

ana

gem

ent

of

oth

er p

roje

cts’

w

ork

forc

es is

no

t w

ith

in C

hev

ron

’s

con

tro

l or

sco

pe

of

resp

on

sib

ility

33

Mediu

m•

All

wo

rker

s as

soci

ate

d w

ith

th

e P

roje

ct w

ill b

e h

ou

sed

at t

he

acc

om

mo

dat

ion

vi

llag

e. T

her

e m

ay

be

som

e sh

ort

-ter

m

imp

act

s w

hile

th

e a

cco

mm

od

atio

n

villa

ge

is b

ein

g

con

stru

cte

d.

Low

No

mo

del

ling

co

nd

uct

ed

and

av

aila

ble

in

form

atio

n is

in

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

10.5



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Rec

reati

on

Op

erat

ion

sH

ou

sin

g o

f R

esid

ents

wh

o

Rel

oca

te d

ue

to E

con

om

ic

Op

po

rtu

nit

ies

• R

ed

uce

d a

cces

s to

te

mp

ora

ry

tou

rism

a

cco

mm

od

atio

n

du

e to

po

pu

lati

on

g

row

th in

du

ced

by

the

Pro

ject

• R

ed

uce

d a

cces

s to

te

mp

ora

ry

tou

rism

a

cco

mm

od

atio

n

du

e to

use

of

acc

om

mo

dat

ion

b

y w

ork

forc

e o

f in

fras

tru

ctu

re

and

/or

con

stru

ctio

n

pro

ject

s in

du

ced

b

y th

e P

roje

ct

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• M

ana

gem

ent

of

po

pu

lati

on

gro

wth

is

bey

on

d C

hev

ron

’s c

on

tro

l an

d

ther

efo

re is

no

t w

ith

in C

hev

ron

’s

sco

pe

of

resp

on

sib

ility

• M

ana

gem

ent

of

oth

er p

roje

cts’

w

ork

forc

es is

no

t w

ith

in C

hev

ron

’s

con

tro

l or

sco

pe

of

resp

on

sib

ility

33

Mediu

m•

Th

e p

riva

te s

ect

or

will

res

po

nd

to

dem

and

for

tem

po

rary

an

d

per

man

ent

ho

usi

ng

• G

ove

rnm

ent

will

re

leas

e la

nd

for

new

ho

usi

ng

co

nst

ruct

ion

Low

No

mo

del

ling

co

nd

uct

ed

. an

d

avai

lab

le

info

rmat

ion

is

ina

de

qu

ate

No

t A

pp

licab

leS

ect

ion

10.5

Rec

reati

on

Op

erat

ion

sP

hys

ical

P

rese

nce

of

Infr

astr

uct

ure

• R

ed

uce

d a

cces

s to

re

crea

tio

n a

reas

d

ue

to e

xclu

sio

n

zon

es, l

ead

ing

to

loss

of

recr

eati

on

al v

alu

e

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

hev

ron

will

eva

luat

e th

e su

itab

ility

o

f in

vest

men

t in

re

crea

tio

n

act

ivit

ies

and

faci

litie

s fo

r th

e g

ener

al c

om

mu

nit

y as

par

t o

f it

s fu

ture

so

cial

inve

stm

ent

stra

teg

y

51

Mediu

m•

So

cial

inve

stm

ent

fun

din

g w

ill b

e av

aila

ble

fo

r co

mm

un

ity

pro

ject

s

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

Ext

ent

of

excl

usi

on

zo

nes

cu

rren

tly

un

cert

ain

No

t A

pp

licab

leS

ect

ion

10.5

Rec

reati

on

Op

erat

ion

sO

per

atio

nal

A

ctiv

itie

s•

Re

du

ced

acc

ess

to

tem

po

rary

to

uri

sm

acc

om

mo

dat

ion

d

ue

to u

se o

f a

cco

mm

od

atio

n

by

op

erat

ion

al

wo

rkfo

rce

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• P

roje

ct im

pa

cts

on

to

uri

sm

acc

om

mo

dat

ion

will

be

red

uce

d

thro

ug

h p

rovi

sio

n o

f a

cco

mm

od

atio

n f

or

all w

ork

ers

asso

ciat

ed

wit

h t

he

Pro

ject

54

Ver

y

Low

• A

ll w

ork

ers

asso

ciat

ed

wit

h

the

Pro

ject

will

be

ho

use

d at

th

e o

per

atio

nal

vi

llag

e. T

her

e m

ay

be

som

e sh

ort

-ter

m

imp

act

s w

hile

th

e a

cco

mm

od

atio

n

villa

ge

is b

ein

g

con

stru

cte

d

Rea

son

able

Ava

ilab

le

info

rmat

ion

is

ad

eq

uat

e

No

t A

pp

licab

leS

ect

ion

10.5



Rec

reati

on

Ad

dit

ive

Eff

ect

s•

Re

du

ced

acc

ess

to

recr

eati

on

are

as

du

e to

tem

po

rary

o

r p

erm

anen

t ex

clu

sio

n z

on

es,

lea

din

g to

loss

of

recr

eati

on

al v

alu

e

• R

ed

uce

d a

cces

s to

te

mp

ora

ry

tou

rism

a

cco

mm

od

atio

n

du

e to

use

of

acc

om

mo

dat

ion

b

y P

roje

ct

con

stru

ctio

n o

r o

per

atio

nal

w

ork

forc

e;

po

pu

lati

on

gro

wth

in

du

ced

by

the

Pro

ject

; o

r u

se o

f a

cco

mm

od

atio

n

by

wo

rkfo

rce

of

infr

astr

uct

ure

an

d/o

r co

nst

ruct

ion

p

roje

cts

ind

uce

d

by

the

Pro

ject

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

hev

ron

will

eva

luat

e th

e su

itab

ility

o

f in

vest

men

t in

re

crea

tio

n

act

ivit

ies

and

faci

litie

s fo

r th

e g

ener

al c

om

mu

nit

y as

par

t o

f it

s fu

ture

so

cial

inve

stm

ent

stra

teg

y

• P

roje

ct im

pa

cts

on

to

uri

sm

acc

om

mo

dat

ion

will

be

red

uce

d

thro

ug

h p

rovi

sio

n o

f a

cco

mm

od

atio

n f

or

all w

ork

ers

asso

ciat

ed

wit

h t

he

Pro

ject

• M

ana

gem

ent

of

po

pu

lati

on

gro

wth

is

bey

on

d C

hev

ron

’s c

on

tro

l an

d

ther

efo

re is

no

t w

ith

in C

hev

ron

’s

sco

pe

of

resp

on

sib

ility

• M

ana

gem

ent

of

oth

er p

roje

cts’

w

ork

forc

es is

no

t w

ith

in C

hev

ron

’s

con

tro

l or

sco

pe

of

resp

on

sib

ility

33

Mediu

m•

So

cial

inve

stm

ent

fun

din

g w

ill b

e av

aila

ble

fo

r co

mm

un

ity

pro

ject

s

• A

ll w

ork

ers

asso

ciat

ed

wit

h

the

Pro

ject

will

be

ho

use

d at

th

e co

nst

ruct

ion

vi

llag

e. T

her

e m

ay

be

som

e sh

ort

-ter

m

imp

act

s w

hile

th

e a

cco

mm

od

atio

n

villa

ge

is b

ein

g

con

stru

cte

d

• T

he

pri

vate

se

cto

r w

ill r

esp

on

d to

d

eman

d fo

r te

mp

ora

ry a

nd

p

erm

anen

t h

ou

sin

g

• G

ove

rnm

ent

will

re

leas

e la

nd

for

new

to

uri

st

acc

om

mo

dat

ion

an

d/o

r te

mp

ora

ry

wo

rk c

amp

fa

cilit

ies

Low

Ava

ilab

le

info

rmat

ion

on

C

hev

ron

w

ork

forc

es is

re

aso

nab

le,

ho

wev

er n

o

mo

del

ling

u

nd

erta

ken

fo

r a

dd

itio

nal

p

op

ula

tio

n

gro

wth

No

t A

pp

licab

leS

ect

ion

10.5

Nois

eC

on

stru

ctio

n

Co

nst

ruct

ion

A

ctiv

itie

s•

Dim

inis

he

d q

ual

ity

of

life

du

e to

a

cou

stic

em

issi

on

s th

at a

re a

ud

ible

fr

om

key

re

cep

tor

po

ints

an

d

dim

inis

h q

ual

ity

of

life

/ se

nse

of

sere

nit

y

• S

tres

s-re

late

d

imp

act

s o

n

com

mu

nit

y w

ell-

bei

ng

as a

re

sult

of

ham

mer

ing

no

ise

52

Low

• P

roje

ct w

ill

com

ply

wit

h W

A

no

ise

reg

ula

tio

ns

to r

ed

uce

th

e p

ote

nti

al im

pa

ct

of

no

ise

bey

on

d

the

site

bo

un

dar

y

• R

eg

ula

tory

an

d

pu

blic

p

erce

pti

on

s co

nsi

der

ed

as

par

t o

f th

e ri

sk

asse

ssm

ent

• C

on

stru

ctio

n a

ctiv

itie

s w

ill c

om

ply

w

ith

En

viro

nm

enta

l Pro

tect

ion

(N

ois

e) R

eg

ula

tio

ns

199

7

• N

ois

e w

ill b

e m

ana

ge

d as

par

t o

f th

e C

EM

P. T

he

man

ag

emen

t p

lan

will

fo

cus

on

no

ise

to s

urr

ou

nd

ing

re

cep

tors

bey

on

d th

e si

te b

ou

nd

ary

44

Low

• In

du

stry

sta

nd

ard

tr

affi

c co

ntr

ols

will

b

e in

pla

ce

• N

ois

e le

vels

du

rin

g

con

stru

ctio

n w

ill

com

ply

wit

h

En

viro

nm

enta

l P

rote

ctio

n (

No

ise)

R

eg

ula

tio

ns

199

7

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce

Un

cert

ain

ties

ex

ist

aro

un

d p

ile

dri

vin

g p

rog

ram

o

f w

ork

s

No

t A

pp

licab

leS

ect

ion

10.6

Ap

pen

dix

U

1



Facto

rP

hase

Asp

ect

Pote

nti

al I

mpacts

Inh

ere

nt

Ris

k (f

rom

Sco

pin

g

Docu

men

t)

Com

men

ts/

Ass

um

pti

on

s (f

rom

Sco

pin

g

Docu

men

t)

Man

agem

en

t an

d M

itig

ati

on M

easu

res

Res

idu

al R

isk

Com

men

ts/

Ass

um

pti

on

s (R

elati

ng t

o re

sidu

al

risk

ran

kin

g)

Con

fiden

ce L

evel

an

d J

ust

ifica

tion

Pote

nti

al

Impacts

to

Matt

ers

of

NE

S

EIS

/ER

MP

R

efere

nce

CL

Ran

kin

gC

LR

an

kin

g

Nois

eO

per

atio

ns

Op

erat

ion

s A

ctiv

itie

s•

Dim

inis

he

d q

ual

ity

of

life

du

e to

a

cou

stic

em

issi

on

s th

at a

re a

ud

ible

fr

om

key

re

cep

tor

po

ints

an

d

dim

inis

h q

ual

ity

of

life

/ se

nse

of

sere

nit

y

52

Low

• P

roje

ct w

ill

com

ply

wit

h W

A

no

ise

reg

ula

tio

ns

to r

ed

uce

th

e p

ote

nti

al im

pa

ct

of

no

ise

bey

on

d

the

site

bo

un

dar

y

• R

eg

ula

tory

an

d

pu

blic

p

erce

pti

on

s co

nsi

der

ed

as

par

t o

f th

e ri

sk

asse

ssm

ent

• O

per

atio

nal

act

ivit

ies

will

co

mp

ly

wit

h E

nvi

ron

men

tal P

rote

ctio

n

(No

ise)

Re

gu

lati

on

s 19

97

44

Low

• N

ois

e le

vels

du

rin

g

con

stru

ctio

n w

ill

com

ply

wit

h

En

viro

nm

enta

l P

rote

ctio

n (

No

ise)

R

eg

ula

tio

ns

199

7

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce

Un

cert

ain

ties

ex

ist

aro

un

d p

ile

dri

vin

g p

rog

ram

o

f w

ork

s

No

t A

pp

licab

leS

ect

ion

10.6

Nois

eA

dd

itiv

e E

ffe

cts

• D

imin

ish

ed

qu

alit

y o

f lif

e d

ue

to

aco

ust

ic e

mis

sio

ns

that

are

au

dib

le

fro

m k

ey r

ece

pto

r p

oin

ts

• S

tres

s-re

late

d

imp

act

s o

n

com

mu

nit

y w

ell-

bei

ng

as a

re

sult

of

aco

ust

ic

emis

sio

ns

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• C

on

stru

ctio

n a

nd

op

erat

ion

al

act

ivit

ies

will

co

mp

ly w

ith

E

nvi

ron

men

tal P

rote

ctio

n (

No

ise)

R

eg

ula

tio

ns

199

7

• N

ois

e w

ill b

e m

ana

ge

d as

par

t o

f th

e C

EM

P. T

he

man

ag

emen

t p

lan

will

fo

cus

on

no

ise

to s

urr

ou

nd

ing

re

cep

tors

bey

on

d th

e si

te b

ou

nd

ary

44

Low

• N

ois

e le

vels

du

rin

g

con

stru

ctio

n w

ill

com

ply

wit

h

En

viro

nm

enta

l P

rote

ctio

n (

No

ise)

R

eg

ula

tio

ns

199

7

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce

Un

cert

ain

ties

ex

ist

aro

un

d p

ile

dri

vin

g p

rog

ram

o

f w

ork

s

No

t A

pp

licab

leS

ect

ion

10.6

Ap

pen

dix

U

1

Air

E

mis

sion

sC

on

stru

ctio

n

Co

nst

ruct

ion

A

ctiv

itie

s•

Incr

ease

d

resp

irat

ory

d

isea

se d

ue

to

incr

ease

d

emis

sio

ns

• D

ecr

ease

d p

ub

lic

amen

ity

du

e to

in

crea

sed

air

emis

sio

ns

53

Low

• W

ill b

e m

ana

ge

d

in a

cco

rdan

ce

wit

h o

utc

om

e o

f co

nsu

ltat

ion

a

ctiv

itie

s re

gar

din

g

curr

ent

use

s an

d

valu

es

• D

ust

will

be

man

ag

ed

as p

art

of

the

CE

MP,

incl

ud

ing

mit

igat

ion

m

easu

res

as d

etai

led

in C

hap

ter

9,

Terr

estr

ial R

isk

Ass

essm

ent

and

M

ana

gem

ent

• In

du

stry

sta

nd

ard

traf

fic

man

ag

emen

t co

ntr

ols

will

be

in

pla

ce

53

Low

• A

ir e

mis

sio

ns

will

g

ener

ally

co

nsi

st

of

du

st f

rom

ve

hic

le

mo

vem

ents

an

d

gro

un

d cl

eara

nce

an

d em

issi

on

s fr

om

co

nst

ruct

ion

e

qu

ipm

ent

• A

ir q

ual

ity

will

co

mp

ly w

ith

th

e E

PA

Gu

idan

ce f

or

the

Ass

essm

ent

of

En

viro

nm

enta

l Fa

cto

rs

– p

reve

nti

on

of

air

qu

alit

y im

pa

cts

fro

m la

nd

d

evel

op

men

t si

tes

– N

o.1

8, 2

00

0

• In

du

stry

sta

nd

ard

tr

affi

c m

ana

gem

ent

con

tro

ls w

ill b

e in

p

lace

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce

Un

cert

ain

ties

ar

ou

nd

nu

mb

er,

volu

me

and

typ

e o

f ro

ad

traf

fic

and

h

eavy

veh

icle

s n

ot

yet

kno

wn

No

t A

pp

licab

leS

ect

ion

10.6



Air

E

mis

sion

sO

per

atio

ns

Op

erat

ion

s•

De

crea

sed

pu

blic

am

enit

y d

ue

to

incr

ease

d ai

r em

issi

on

s

53

Low

• W

ill b

e m

ana

ge

d

in a

cco

rdan

ce

wit

h o

utc

om

e o

f co

nsu

ltat

ion

a

ctiv

itie

s re

gar

din

g

curr

ent

use

s an

d

valu

es

• D

ust

will

be

man

ag

ed

as a

par

t o

f th

e O

EM

P5

3L

ow

Th

e m

ain

act

ivit

ies

likel

y to

gen

erat

e ai

r em

issi

on

s d

uri

ng

o

per

atio

ns

are

the

follo

win

g:

• C

om

bu

stio

n o

f fu

el g

as in

th

e g

as

turb

ines

• F

lari

ng

du

rin

g

up

set

or

emer

gen

cy

con

dit

ion

s

• D

ust

gen

erat

ed

d

uri

ng

rou

tin

e m

ain

ten

ance

• T

he

Pro

ject

will

co

mp

ly w

ith

Sta

te

En

viro

nm

enta

l (A

mb

ien

t A

ir)

Po

licy

00

9. D

raft

P

olic

y fo

r P

ub

lic

and

Sta

keh

old

er

Co

mm

ent.

(E

PA

2

00

9)

Rea

son

able

Su

rvey

dat

a av

aila

ble

fro

m

on

e ex

per

t –

com

plie

s w

ith

EP

A

gu

idan

ce.

No

t A

pp

licab

leS

ect

ion

10.6

Air

E

mis

sion

sA

dd

itiv

e E

ffe

cts

• D

ecr

ease

d p

ub

lic

amen

ity

du

e to

in

crea

sed

air

emis

sio

ns

-N

ot

iden

tifi

ed

in

En

viro

nm

enta

l S

cop

ing

Do

cum

ent

• D

ust

will

be

man

ag

ed

as p

art

of

the

CE

MP

• In

du

stry

sta

nd

ard

traf

fic

man

ag

emen

t co

ntr

ols

will

be

in

pla

ce

53

Low

• A

ir q

ual

ity

will

co

mp

ly w

ith

th

e E

PA

Gu

idan

ce f

or

the

Ass

essm

ent

of

En

viro

nm

enta

l Fa

cto

rs

– p

reve

nti

on

of

air

qu

alit

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10.6

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Documents

Assessment Process - Chevron Corporation · comment from Monday July 26, 2010 until Monday October 4, 2010. Copies of the Draft EIS/ERMP may also be downloaded from . Chevron Australia