16 - s06.static-shell.com · 16.3 water management criteria qgc has developed a suite of management...

275

16.0 Water management – Emergency discharge plans

276

16.0 Water management – Emergency discharge plans

# Department Condition Description Completion date Status

Pre-Dec 2012 Post-Dec 2012

35 52d ivCompletion of upgraded emergency response plans to cover all regulated water and waste storage facilities

April 2014

36 49h, 52d i IV 53B c Develop Emergency Discharge Management Plan July 2013

Commitments completed Evergreen Commitments

Commitments work in progress Firm deliverables for that month

16.1 INTRODUCTION

QGC’s water management facilities handle substantial water volumes of varying quality. A ‘best practice’

approach requires plans and procedures for situations where equipment or facility failure could result in a spill or

emergency discharge.

A specific response guide has been developed for unforeseen emergency discharges from critical elements in

the water management system and related infrastructure. The focus is on risk scenarios using the likelihood or

potential to cause significant impacts on MNES.

This document presents the QGC Upstream Gas Field - Unforeseen Emergency Discharge Plan (UEDP) for the

QCLNG project. The plan has been prepared to fulfil Commitment 36 of the Stage 2 CSG WMMP for compliance

with the requirements of EPBC approval 53B c (formerly conditions 49h (I) and (II)) and 53B e (i) (III) (formerly

Condition 52d (I) (IV)) of federal approval EPBC 2008/4398 to develop a Stage 3 CSG WMMP.

16.1.1 PLAN FRAMEWORK AND CONTEXT

The UEDP has been designed as an overarching plan and Emergency Response Guideline (ERG) that links directly

with existing QGC incident management and emergency response plans developed under QGC’s Environmental

Management System (EMS) in accordance with the international standard AS/NZS ISO 14001.

The plan is a specific response guide developed for handling unforeseen emergency discharges from critical

elements of QGC’s water management system and related infrastructure. The plan is focused on scenarios

that are ranked in accordance with or potential to cause significant or long-term impacts or harm to a Matter

of National Environmental Significance (MNES) and events or situations that results in an abnormal state and

require an immediate response in order to contain, minimise and/or to prevent – serious environmental harm as

defined in Queensland's Environmental Protection Act 1994.

277

The primary risk scenarios specifically identified in this Plan include:

• Loss of containment or discharges from CSG water storages and aggregation ponds;

• Loss of containment or discharges from brine storages and aggregation ponds;

• Uncontaminated discharge of CSG water, brine or treatment chemicals from water treatment facilities; and

• Serious rupture or damage to CSG water or brine trunklines.

This Plan complies with the relevant HSSE Management System standards and procedures as listed in the table

of references (Section 16.1.2) and has been developed to complement all existing and future management plans

and procedures for responding to environmental incidents including QGC’s site-based emergency management

procedures, dam safety emergency response plans and individual pond operating plans for individual CSG

regulated storages and water treatment plant (WTP) operations management plans.

Emergency preparedness and response at QGC is not described in one document. There are several layers of

emergency management at QGC and a range of standards, plans, procedures and guides prepared for the various

organisational and system levels. An overview of emergency management at QGC is provided in Figure 16-1.

This UEDP shall function as an Emergency Response Guide (ERG) for the purpose of QGC’s management

structure and should be read and implemented in conjunction with the QGC Environmental Emergency Incident

Response and Reporting Procedure (QCOPS-OPS-ENV-PCE-000012) and any relevant site-based emergency

response procedure in place for a particular site or asset type.

16.1.2 REFERENCE DOCUMENTS

This list of reference documents to the UEDP presented here should be read in conjunction with this

Stage 3 WMMP:

• Emergency Management Standard: QCQGC-BX00-HSS-STD-000011 (QGC, 2012);

• Incident Management Plan: QCQGC-BX00-HSS-PLN-000002 (QGC, 2012);

• Procedure for Environmental Emergency Incident Management: QCOPS-OPS-ENV-PCE-000014 (QGC, 2012);

• Environmental Emergency Incident Response and Reporting Procedure: QCOPS-OPS-ENV-PCE-000012 (QGC,

2012); and

• Site Emergency Response Procedure – Kenya: QCOPS-BX55-HSS-PCE-000001-4 (QGC, 2013).

278

Figure 16-1 – QGC's environmental emergency management structure

BG Internal Control

Framework (Standards)

Safety CaseBG-ST-HSSE-AI-

001

EnvironmentBG-ST-HSSE-

ENV-001

Incident Reporting and Investigation

BG-ST-HSSE- EFF-001

Crisis Management

BGA-HSSE-GEN- ST-0900

QGC Incident and Near Miss Reporting,

Investigation and Analysis Standard

QCQGC-BX00-HSS-STD- 000011

QGC Emergency Management Standard QCQGC-BX00-HSS-STD-

000011

Safety Case – Upstream Operations

QCOPS-OPS-HSS-SAC-000001

QGC Incident Management Plan (IMP)QCQGC-BX00-HSS-PLN-

000002

Environmental Emergency Incident

Management ProcedureQCOPS-OPS-ENV-PCE-

000014

Environmental Emergency Incident

Response and Reporting Procedure

QCOPS-OPS-ENV-PCE-000012

QGC Emergency Response Procedure

(site based)

Emergency Response Guide (ERG)

This document outlines the minimum mandatory requirements for ensuring

all incidents and near misses are reported,

investigated, analysed and corrective and preventive

action implemented to prevent reoccurrence .

A Safety Case is a document that ensures

that suitable and sufficient measures are in place to

prevent a major accident or environmental event and

to reduce the effects of these events should

they occur .

Development against the requirements of ISO 14001 (as part of QGC’s EMS) and to provide linkage between

the BG Standards and QGC’s emergency response

relating specifically to an environmental incident

management .

Documents the requirements for responding to and investigating and environmental

incident . This document should be referred to in conjunction with ERG’s . It shall be used to

compliment the EMS Procedure for Environmental Emergency Incident Management .

BG Standards are documents developed by

BG Group Governance Committee . Compliance

with BG Standards is mandatory for all BG

employees and contractors .

This document outlines the fundamental concepts and

principles for emergency management activities undertaken at QGC . It also outlines the QGC

Emergency Management System structure .

This document outlines QGS’s Incident Management System .

It describes the identification, notification, escalation and activation arrangements of the QGC

Indicent Management Team (IMT) . It takes

precedence over all ERPs .

Emergency Response Procedure’s (ERPs) are a

site specific document that outlines the Emergency Response for a specific

area .

The ERG is a specific response plan developed for handling a particular type of emergency event

(i .e . gas explosion) . They are contained as

appendices to the broader Emergency Response

Procedure .

279

16.1.3 EXCLUSIONS AND RELATIONSHIP WITH EXTERNAL PROJECTS

The UEDP has been developed to incorporate QGC’s QCLNG upstream gas field CSG water management

activities. In accordance with the Department variation to project conditions dated 2 November 2012 EPBC

2008/4398 QCLNG Gasfield, this plan does not incorporate elements relevant to treated CSG water provided to

SunWater under the Glebe Weir or Chinchilla Weir Pipeline Projects.

60A: The proponent must treat all coal seam gas water as required under this approval before the coal seam

gas water associated with the approved action enters the following pipelines:

• The Kenya to Chinchilla Pipeline referred to the Department (EPC 2011/6000); and

• The Woleebee Creek to Glebe Weir pipeline (EPBC 2011/6181).

Once the CSG water has been treated as required under this approval and has entered the pipelines specified

above, conditions 43-60 will no longer apply to that water. QGC is actively engaged with SunWater through

relevant water service agreements for the projects and to develop and implement resource management

and monitoring plans and operating protocols to ensure compliance with project conditions and sustainable

beneficial use.

While the Kenya to Chinchilla Weir and Woleebee Creek to Glebe Weir pipelines are not included in this plan, QGC

has amended the Kenya Site Emergency Response Procedure (ERP) (QCOPS-BX55-HSS-PCE-000001-4) and QGC

Incident Reporting Investigation Procedure (QCQGC-BX00-HSS-PCE-000017) to ensure notifications and response

actions are in place to appropriately manage risks associated with augmentation of town water supplies for the

Kenya to Chinchilla Pipeline Project, including relevant notification procedures.

16.2 ENVIRONMENTAL VALUES PROTECTION OBJECTIVES

QGC has identified the following objectives for protecting environmental values in relation to CSG water

management:

• The extraction and treatment of CSG water is not causing adverse impacts to the surrounding environment,

including site specific environmental values;

• Treated water for beneficial reuse is meeting specified water quality criteria tailored for the intended reuse

application and to avoid any adverse environmental impacts;

• Avoid the potential for accidental spills and leaks of brine ponds and saline waste;

• Avoid surface water contamination of nearby waterways;

• Protect the groundwater quality in the vicinity of the WTP and storage ponds by minimising the potential for

seepage of untreated CSG water and brine product from storage ponds to groundwater;

• Minimising the generation of concentrated brine waste from the WTPs;

• Decommissioning and rehabilitation of brine ponds/basins is to be undertaken as required throughout the

life of the project; and

• Maximise treated water recovery from the WTPs for beneficial reuse.

280

16.3 WATER MANAGEMENT CRITERIA

QGC has developed a suite of management criteria intended to be utilised as a tool to assess the overall

performance of the QGC's CSG Water Management Strategy and the continual development and implementation

of the system.

The management criteria provided below incorporate specific environmental objectives against which each

component or use within the proposed water management network is to be monitored and assessed for

performance as they are progressively implemented into the network.

The criteria also constitute active tools for avoidance, management and mitigation for potential and actual

environmental harm including unforeseen emergency discharges. Control measures have been proposed to

manage the potential risks of unauthorised release or spills to an acceptable level. These measures incorporate

standard actions and procedures including monitoring.

These management criteria are not set or enforced as compliance limits but act as performance tool to assist

QGC with the continual improvement and efficiency of the water management strategy and system. The criteria

have been developed in compliance with the requirements of Section 310D (5)(e) of the EP Act and in accordance

with the associated environmental conditions contained within QGC’s relevant upstream gas field environmental

authorities.

281

CSG Water

Management

System

Management

Objective

Monitoring

Frequency

Management Criteria

Performance Indicator and Actions

Production

Wells1

To monitor the

quality of CSG water

produced from

wells to ensure

environmental values

of end use beneficial

reuse are preserved

Produced water

from a sample of

production wells

is sampled and

analysed at least

annually

Performance Indicators

• Produced water quality parameters that exceed

a deviation of 20% above long-term average2 are

investigated

• Early warning detection (LOR) of restricted substances

that may cause environmental harm

• Early warning detection of elevated levels of parameters

that may cause integrity issues to well and pipeline

infrastructure4

Potential Actions Required

• Additional monitoring undertaken inform investigation

into change in chemical parameter concentrations

• Control use of water or reduce water production from

affected wells

Wellhead

Separator

Zero leaks and spills

from infrastructure.

No visible damage to

vegetation or soil on

surrounding land

Producing wells to

be visited at least

monthly to check

for signs of leaks or

vegetation damage


• Surveillance Monitoring indicates vegetation health

surrounding facilities

• Infrastructure integrity (leakage data)


• Investigate any signs of leaks or damage to vegetation to

locate, isolate, contain and/or repair any leaks identified

Water

Gathering

Line

• Minimise leaks

or spills from

gathering line

and pumping

infrastructure

• No visible

damage to

vegetation or soil

on surrounding

land

• No observable

reduction in

groundwater

quality

Annual inspection

of ground above

a sample of the

water gathering

lines for evidence

of water leakage or

vegetation damage

Pipeline Integrity

Management

System (PIMS)


• Surveillance monitoring indicates vegetation health


• Infrastructure integrity (leakage data)


• Investigate any signs of leaks or damage to vegetation

to locate and isolate, contain and/or repair any leaks

identified

• Inspections of additional sections of water gathering

system if warranted by findings from initial inspections

Water

Trunklines

• Minimise

leaks or spills

from pipeline

and pumping

infrastructure

• No visible

damage to

vegetation or soil

on surrounding

land

• No observable

reduction in

groundwater

quality

Data recording and

telemetry (Flow)

Annually

(surveillance)


• Surveillance monitoring indicates vegetation health


• Infrastructure integrity inspections

• Leakage rates inferred by flow metering trends and/or

variance between inflow and outflow meters


• Determine whether inferred leakage rates are consistent

with leaking trunkline

• Locate any leaks, then isolate, contain and/or repair those

leaks

1 QGC currently samples all CSG production well. As the project expands, a selection of representative CSG production wells will be sampled in each

operating field. 2 Across the standard suite of parameters tested under the existing QGC monitoring program. 3 Limit of reporting. 4 Indicated through existing water quality sampling program of Low Point Drains (LDP).

282

CSG Water

Management

System

Management

Objective

Monitoring

Frequency

Management Criteria


In-field

Storage

Tanks, Ponds

Regional

ponds

(untreated

CSG water)

• Zero leaks and

spills

• No storage

failures or

overtopping

• No untreated

CSG water

entering the

receiving

environment

• No observable

reduction in

groundwater

quality

Tanks

Data recording and

telemetry (level and

flow)

Ponds

Annual integrity

inspections

Performance Indicators Tanks

• High level alarm

Regional Ponds

• Early warning water forecasting indicates inflows

may exceed 1/5 of the regional pond storage capacity

(storages sized for five days at peak flows)

• Percentage completion of specified maintenance and

inspection routines


• Confirm real time data reports are consistent between

flow metering systems

• Increase pond monitoring frequency

• Assess maintenance backlog and determine whether

additional resources are required to rectify backlog

• Take action to reduce levels by diverting flow, reducing

residence time in regional storage ponds and/or

increasing flows to WTP

Aggregation

Dams

(untreated

CSG water)

• No visible

damage to

vegetation or soil

on surrounding

land

• No observable

reduction in

groundwater

quality

• No mortality or

entrapment of

local fauna and

livestock

• No accumulation

of salts and other

contaminants

in the sub-soil

profile below the

collection system

• No storage

failures or

overtopping

Data recording and

telemetry (Level)

Quarterly

(quality and

surveillance)


• Early warning water level reaches Maximum Operating

Level (MOL)

• Mandatory Reporting Level (MRL)

• Full Integrity of security and fauna exclusion fencing

around HDPE lined facilities

• Pond wall, liner, and seepage collection system integrity

controls confirmed through shallow groundwater

monitoring underdrainage leakage detection

• No pond overtopping as controlled by water transfer

balancing and routine MRL monitoring

• No emergency release under normal and design storm

conditions

• EA Conditions, Notification Schedule I:

• Annual dam inspections by suitably qualified people

• Early warning detection of restricted substances that

may cause environmental harm

• Early warning detection of elevated levels of parameters

that may cause integrity issues to well and pipeline

infrastructure


• Confirm monitoring data reports and increase

monitoring frequency as required based on analysis of

inflow forecasting;

• System modification to divert/reduce inflows and

investigate integrity/quality concerns

• Manage storage pond capacity through balancing via

transfer of water between CSG water dams

• System modification to divert/accept increase flow to

WTP and beneficial use

• Manage inflow to the pond (including diversion or

reduction of production)

• Works to rectify any leakage or seepage detected from

dams

• Works to rectify fauna exclusion structures surrounding

HDPE lined facilities

5 Infield storage tanks are designed for three hour residence time at peak flows 6 A telemetry project for ponds is currently being developed and has not yet been implemented project-wide. Where telemetry does not exist, interim transition

monitoring programs for water levels will continue to operate. Pond level monitoring according to existing systems may vary in frequency depending on

individual pond type/use and operating status.

283

CSG Water

Management

System

Management

Objective

Monitoring

Frequency

Management Criteria


Reverse

Osmosis

Plants

• CSG water to

be treated to

acceptable

standards for

approved end

uses

• No visible

damage to

vegetation or soil

on surrounding

land

• Zero leaks and

spills outside

bunded areas

• No unauthorised

discharges

to receiving

environments

• No chemical

containment

failures

Data recording and

telemetry (flows

and pressure and

some water quality

parameters)

Daily, weekly and

monthly water

quality monitoring

depending on

beneficial use

Monthly

(surveillance)


• Water to be treated to specific water quality standards

relevant to the end use

• Early warning departure from water quality

requirements through daily monitoring of key permeate

characteristics (such as EC)

• Surveillance monitoring and maintenance program

indicates infrastructure integrity



monitoring frequency

• System modification to reduce or divert inflows and

investigate integrity/quality concerns, corrective actions

taken where required

• Isolate or change source water

• System modification to recirculate outflows back to

storage ponds during remedial works and testing

• Manage production (including reduction of production)

to be instigated, remedial works required

• Implementation of Plant Operator environmental

inspection program

Treated

Water Pond

(and Pump

Stations)

• Zero leaks and

spills

• No storage

failures

• No observable

deterioration in

treated water

quality

• No mortality or

entrapment of

local fauna and

livestock

Data recording and

telemetry (Level)

Daily and weekly

(Quality)

Quarterly

(surveillance)



Level (MOL)


around HDPE lined facilities

• No pond overtopping as controlled by water transfer/


• Early warning departure from water quality

requirements through daily monitoring of key permeate

characteristics (such as EC)


• Confirming monitoring data reports and increase


inflow forecasting;

• System modification to reduce/divert inflows and



• Manage storage pond capacity through increasing

outflows to beneficial use where possible

• Manage WTP production (including reduction of

throughput) to be instigated, remedial works required

• Recirculate water through water treatment plant if

required or redirect water to a beneficial use for which

the quality is acceptable or alternative use such as

construction where available


HDPE lined facilities

284

CSG Water

Management

System

Management

Objective

Monitoring

Frequency

Management Criteria


Brine

Containment

Ponds

• Zero leaks and

spills

• No storage

failures

• No observable

reduction in

groundwater

quality

• No accumulation

of salts and other

contaminants

in the sub-soil

profile below the

collection system

• No mortality or

entrapment of

local fauna and

livestock

• Water quality fit

for purpose or

for contractual

agreement

Data recording and

telemetry (Level)

Quarterly

(Quality and

surveillance)



Level (MOL)

• Mandatory Reporting Level (MRL)


around facilities

• Pond wall, liner, and seepage collection and

recirculation system integrity controls confirmed

through shallow groundwater monitoring/

underdrainage leakage detection and surveillance

monitoring

• No pond overtopping as controlled by water transfer/


• Annual dam inspections by suitably qualified people




inflow forecasting

• System modification to reduce/divert inflows and



• Manage brine production (including reduction of WTP

throughput) to be instigated, remedial works required

• Works to rectify any leakage or seepage detected from

dams


HDPE or synthetic geomembrane lined facilities

• Implementation of actions resulting from annual pond

inspections

Table 16-1 – QGC's water management criteria – management network

Although not specifically required for the purpose of the UEDP and for the purpose of the plan, the management

criteria outlined below for on tenement use of CSG water and preferred outlet uses has been included for

information and to illustrate how QGC will manage and monitor these activities on a routine basis and some of

the high-level control and actions in place to ensure sustainable operation.

285

CSG Water Use

CSG Water

Management

System

Performance

Objective

Management

Criteria

Monitoring

Frequency


Managed

utilisation of

CSG Water for

authorised

Petroleum

Activities

Waste

irrigation

Dust suppression

Pond

construction

• No increase in

weed and pest

species

• No

accumulation

of salts

and other

contaminants

in the soil

profile

• No degradation

of soil profile

and structure

• No visible

damage to

vegetation

or soil on

surrounding

land

As required

(per event/use)


• Visual surveillance monitoring

(pre and post-event)

• Water application rates, quality

monitoring and data logging in

accordance with the QGC Land

Release Management Plan

• EA Condition – Dust Suppression

and Land Release Limits


• Restrict/control use of water and

initiate investigations and further

monitoring

• Remediation action implemented

• Performance Improvement

process to be initiated

Direct Supply to

Water Service

Provider

Non-QGC

Infrastructure

• Provision of

100% of agreed

supply

• No reduction in

agreed supply

water quality

Real-time telemetry

(flows/pressure and

some water quality

parameters)3

Daily, weekly and

monthly water

quality monitoring

depending on

beneficial use

Monthly

(surveillance)


• Early warning departure from

water quality requirements

through daily monitoring of key

permeate characteristics

(such as EC)


• Confirm monitoring data

reports and increase monitoring

frequency

• System modification to reduce/

divert inflows and investigate

integrity/quality concerns,

corrective actions taken where

required

• Manage production (including

reduction of production) to

be instigated, remedial works

required

• Recirculate water through water

treatment plant if required or

redirect water to a beneficial

use for which the quality is

acceptable

1 QGC’s environmental responsibility under the QGC QCLNG CWMP and Project EAs is limited to supplying the required treated associated water to the

nominated Treated Water Pond (to agreed Quality and Quantity). 2 Metering estimation is based on system performance 3 Real-time telemetry is an automated data transfer process and does not occur instantaneously.

286

CSG Water Use

CSG Water

Management

System

Performance

Objective

Management

Criteria

Monitoring

Frequency


Aquifer

Repressurisation

(Managed

Aquifer

Recharge) Pilot

(Prefeasibility

Trials)

Post

treatment facility

• Zero leaks and

spills outside

bunded areas

• No storage

failures

Quarterly water

quality monitoring

of ponds

Monthly

(surveillance)


• Surveillance monitoring indicates

vegetation health surrounding

facilities, and infrastructure

integrity (no leakage)


• System modification to restrict/

divert inflows

• Regular maintenance regime

• Shut down if required at

pump infrastructure or

isolate trunklines to instigate

maintenance

Recharge process • No degradation

of background

groundwater

quality

• No over-

pressurisation

of the aquifer

Real-time Telemetry

(flows/pressure and

some water quality

parameters)

Aquifer Monitoring

(quality)


• Water quality monitoring to

determine no deterioration of

background water quality in the

target aquifer

• Aquifer pressure monitoring to

determine no over-pressurisation

of injection well or surrounding

monitoring wells.


• System modification to restrict/

control injection flows and

inflows

• Shut down if required at pump

infrastructure to Investigate

quality/pressure concerns

4 Refer treated water ponds objectives and criteria 5 To be determined through the feasibility stage of the aquifer pressurisation project investigations

Table 16-2 – Water management criteria – water outlets and use

16.4 ENVIRONMENTAL CONSEQUENCE RATING ASSESSMENT AND MANAGEMENT RESPONSE

QGC has considered the environmental consequence rating profile of each of the process element and over-

arching strategies for the management of CSG water, including the intended treatment proposed. The key

environmental risks for each management option have been assessed and assigned a rating based on potential

consequence with regard to environmental harm.

For the purpose of the UEDP all key infrastructure elements of the water management system have been

captured in the Environmental Rating Table (Table 16-3). The assessment and rating does not take into account

the likelihood or risk profile of such an incident occurring as the QGC Water Management Criteria (Section 16.3)

have been specifically developed to allow for continuous evaluation and optimisation of the water management

system and thus reduce the likelihood or potential for such events. Therefore the ratings assessment below is

specifically derived to determine trigger and response actions for such unforeseen emergency events if these

were to occur.

287

Consequence

type

Consequences Level

Negligible I Minor II Moderate III Major IV Critical V

Natural

Environment

Negligible impact

on fauna/flora

habitat, aquatic

ecosystems or

water resources.

Incident reporting

according to

routine protocols

Impact on fauna,

flora and/or

habitat but no

negative effects

on ecosystem.

Requires

immediate

regulator

notification

Short-term

impact on

sensitive

environmental

features. Triggers

regulatory

investigation

Long-term impact

of regional

significances

on sensitive

environmental

features

(e.g. wetlands).

Regulatory

intervention

and/or action

Destruction

of sensitive

environmental

features. Severe

impact on

ecosystems.

Regulatory

and high level

government

intervention

and/or action

Potential Consequence I II III IV V

Wells – Spills and leaks

Gathering lines and trunklines – Spills and Leaks

Treated water ponds – Wall failure or discharge

Water treatment facilities-- Spills and discharge of CSG water, brine or chemicals

Regulated CSG ponds – Wall failure or discharge

Regulated brine ponds – Wall failure or discharge

Table 16-3 – UEDP Environmental Consequence Rating Table

QGC has separated the risk scenarios for unforeseen emergency discharges into two key categories: primary

and secondary risks. These categories have been selected based on the specific consequence rating relating to

unforeseen discharges from those elements of the system and the potential for of significant environmental

harm. The process of categorisation allows nomination of key areas that require specific UEDP actions above and

beyond the existing standard incident and emergency response procedures covering all unauthorised releases as

detailed in Section 16.5).

Secondary risk scenarios include accidental spills and leaks that are contained and do not result in an indirect or

direct release to groundwater or surface waters with potential for significant or long-term impacts or harm.

Secondary risk scenarios are determined as those that have been categorised with a potential consequence rating

of I, II or III and require response actions as per the standard procedures listed in Section 16.5 and include:

• Restricted spills of treated CSG water, brine or water treatment chemicals from Water Treatment Facilities;

and

• Minor leaks or spills of treated CSG water or brine from pipelines or storage ponds.

Primary risk scenarios include unforeseen emergency discharges that would result in indirect or direct release to

groundwater or surface waters with potential for significant or long-term impacts or harm.

288

Primary risk scenarios are determined as those categorised with a potential consequence rating of IV or V and

require additional UEDP monitoring, response and reporting actions as listed in Section 18.6, including:



• Uncontained discharge of CSG water, brine or treatment chemicals from water treatment facilities; and

• Serious rupture or damage to CSG water and brine trunklines.

Prescribed management measures including monitoring described in Section 16.6 are in additional to the

standard procures under existing Environmental Incident Plans listed in Section 16.5 are specific triggers enacted

through implementation of this UEDP.

16.5 ENVIRONMENTAL INCIDENT RESPONSE AND REPORTING PROCEDURES

The following procedures shall give guidance and direction on how to handle specific types of incidents relating

to all unauthorised releases and unforeseen discharges. These procedures are a summary of immediate response,

control and monitoring actions. The full procedures are detailed in the QGC Environmental Emergency Incident

Response and Reporting Procedure QCOPS-OPS-ENV-PCE-000012 including identification of the steps and

responses to be undertaken upon discovery of an unauthorised release.

Figure 16-2 – Environmental emergency incidents – unauthorised releases action response procedures

Emergency or Incident Environmental Impact Action Response Plan

Unauthorised release (1)

Dam collapse, breach or

overflow (2)

CSG waters

Chemicals (hydrocarbons,

TEG/other)

Brines and concentrates

Hydraulic stimulation release

Spills to land or water

Downstream flooding

Refer to Section 16.5.1 CSG Water Release

Refer to Section 16 .5 .2 Fuel, Oil and Chemical Spills

Refer to Section 16.5.3 Brines and Concentrates

Refer to Section 16.5.4 Hydraulic Stimulation Fluid Releases

Refer above

Refer to Individual Pond Operating Procedures (IPOPs)

Refer to Section 16.6.1 Dam Collapse, Breach or Overflow

289

16.5.1 CSG WATER RELEASE

Immediate response

• The person(s) after initial discovery of the incident should immediately seek to stop the flow of water if safe

and possible to do so;

• Notification of supervisor of the incident providing relevant incident category assessment according to QGC

Incident Report Matrix;

• Incident category assessment according to QGC Incident Assessment Matrix;

• Supervisor to advise Line Manager of incident in accordance with QGC Emergency Response Procedure

protocols;

• Supervisor to notify Field Environment Officer (FEO) and complete an incident report;

• Supervisor to contact Land Access Consultant if incident occurred off QGC-owned land, and provide details of

incident and actions to address the situation; and

• Land Access Consultant to contact landowner and advise of incident.

Control and minimise

• Attempt to stem the flow of the water by creating earthen bunds or using surrounding material available:

Extra caution should be taken to minimise any impacts on nearby environmentally sensitive areas (ESA) or

watercourses;

• Determine estimated quantity of water released; and

• Trace the flow of the spill to its maximum extent.

Assessment

• Perform sampling of the water at origin of the spill recording the following parameters:

• pH

• Electrical Conductivity (EC)

• Temperature (°C)

• FEO shall visit site of incident if required to do so for assessment:

• Confirm details of the spill (i.e. cause of the release, extent of spill, location, water quality parameters as

reported);

• Take photographic record of incident;

• Identify significant features (waterways, vegetation types, built structures within the receiving

environment); and

• Confirm incident category in accordance with QGC Incident Assessment Matrix.

• FEO to report details of incident to Manager Environment;

• Supervisor to issue Incident Flash, in accordance with QGC Incident and Near Miss Reporting and

Investigation Requirements; and

• Supervisor of owning business unit reports incident in Synergi in accordance with QGC Incident Reporting,

Investigation and Analysis Standard.

290

Notification

• Manager Environment provides notification to the regulatory body (DEHP) consistent with conditions of site

specific EA:

• Initial advice to be provided within 24 hours of becoming aware of incident; and

• Written Incident report required to be submitted to DEHP within 10 business days of the initial

notification in accordance with site specific EA.

• Immediate notification to SunWater and the Queensland Office of Water Supply Regulator is required where

an unplanned release of contaminant to waters occurs within the area of the Chinchilla or Dawson River

Drinking Water Supply Schemes which involves a material impact to the water quality provided under those

schemes in a way that would have an adverse effect on public health; and

• The Department notification is undertaken in accordance with Condition 106 of the gas field approval

including reporting of non-compliance and remedial action within five business days.

Remediation and monitoring

• FEO to assess need for ongoing environmental monitoring based on impact. Monitoring may include but is

not limited to:

• Soil and/or water sampling to be undertaken to assess changes from background. For soils monitoring

this may include but not be limited to three replicate samples at depth intervals of 0 to 10 cm, 20 to 30

cm and 50 to 60 cm at both an analogue and the impact site as a minimum. For monitoring of waters

this program must include upstream, downstream and impact site monitoring procedures. Advice should

be sought from a suitably qualified person in the area of land contamination matters before sampling is

undertaken; and

• Regular visual inspections of the site, including but not limited to the establishment of fixed-point

photographic monitoring points.

• FEO to assess and provide advice on the need for remedial works that addresses issues of environmental

impact. FEO shall provide such advice to the business unit who will be responsible for implementation. Such

works may include but are not limited to:

• Reinstatement of landform;

• Removal of ponded water;

• Re-vegetation of impacted areas;

• Removal of contaminated soil with cartage and disposal to be undertaken by an appropriately licensed

operator. Waste records to be forwarded to and retained by the FEO; and

• Establishment of exclusion zones to allow natural site rehabilitation.

All sampling of soils and waters shall be undertaken in accordance with the DEHP Monitoring and Sampling

Manual 2009, Environmental Protection (Water) Policy 2009 Version 2 (or any subsequent approved version).

*Sampling of soils and waters shall be undertaken in accordance with the DEHP Monitoring and Sampling Manual 2009 Environmental Protection

(Water) Policy 2009 Version 2.

291

16.5.2 FUEL, OIL, CHEMICAL OR EFFLUENT SPILLS

Immediate response

As per procedure in Section 16.5.1.


• Check if the necessary product information is available. Refer to the Safety Data Sheet (SDS);

• Determine estimated quantity of contaminant; and

• Trace the flow of the spill to its maximum extent.

*All SDS, the register of hazardous substances and risk assessments are available via Chem Alert accessible by the

intranet at: http://qgcintranet/hsse/Pages/Chem%20Alert/Chem 20%Alert.aspx.*

Assessment


DEHP notification


Remediation and monitoring


16.5.3 BRINES AND CONCENTRATES

Immediate response (as per procedure in Section 16.5.1).

16.6 UEDP SPECIFIC RESPONSE ACTIONS AND REPORTING PROCEDURES

The following procedures shall give guidance and direction on how to handle significant unauthorised releases

and unforeseen discharges resulting in potential for significant or long-term environmental impact through

direct or indirect release to surface or groundwater.

These procedures are to be implemented in addition to those identified in Section 16.5.

The response plan can be triggered by four events resulting in direct or indirect release to surface or groundwater:



• Uncontained discharge of CSG water, brine or treatment chemicals from water treatment facilities; and

• Serious rupture or damage to CSG water and brine trunklines.

292

16.6.1 REGULATED DAM COLLAPSE, BREACH OR OVERFLOW (CSG WATER OR BRINE)

The Mandatory Reporting Level (MRL) is the level at which it is mandatory that the holder of a DEHP authorised

Environmental Authority must communicate to DEHP that there is a possibility of a spillway discharge from a

regulated dam.

Once the MRL is reached, QGC must act to reduce the pond water level to below the MRL with the aim of

reducing the risk of a pond spill occurring. Available action strategies are dependant on the individual pond type

and its connectivity to the overall water management systems and thus have to be considered on a case-by-case

basis. All regulated dams are constructed with engineered spillways to ensure that in the unlikely event of a spill

occurring that the integrity of the pond structure is maintained.

Should it become necessary to discharge CSG water from a regulated storage, such an action would be done with

notification to and engagement with the Queensland Regulator. In the event of such a release a specific receiving

environment water quality monitoring program would be implemented involving the monitoring at a number of

locations in receiving waters downstream of the release.

Figures 16-3, 16-4 and 16-5 provide regionalised surface water catchment plans for the three QCLNG Project

development areas. The plans indicate all key QCLNG project related ponds (existing and proposed at the time of

publication). The plans are to be used as a tool in the selection of potential upstream and downstream surface

water monitoring locations. In addition the plans indicate proposed surface water monitoring locations specific

to the three (3) QGC Water Treatment Plant Hubs, these locations are further described in Table 16-6 UEDP

monitoring locations for water treatment plant hubs.

Table 16-4 provides a summary of typical mechanisms to avoid, minimise and manage risks of emergency

discharge from regulated storages. This table should be read in conjunction with the water management criteria

and controls identified in Section 16-3.

Avoid Minimise Manage if Releases Occur

Operate ponds below Maximum

Operating Level (MOL)

If a pond(s) reaches MOL immediately

review system water balance and

forecast and consider if action is

required

Mitigation and monitoring procedure

implemented

Continuous monitoring of CSG water

systems (inflows, storage levels and

outflows) including increased frequency

if required

Where modelling or monitoring

indicated pond(s) may exceed MRL

initiate system management actions

(e.g. water transfer to other ponds,

increase outflows to WTP, diversion

or cease inflows to pond) to avoid or

minimise potential for controlled spill

event

• Agency and landholder notifications

• Remediation, monitoring and

reporting

Regular water balance forecasting

to provide early warning of system

peaks or triggers for management and

contingency planning

Where routine inspections indicate risk

of potential loss of hydraulic integrity

of a pond, immediately initiate system

management actions to avoid or

minimise potential for uncontrolled

spill event (e.g. actions as per above, or

where required)

Management controls during emergency

event (refer Table 16-5)

Table 16-4 – Mechanisms to avoid, minimise and manage risks – regulated storages

293

Assessment and monitoring

• Determine estimated quantity of water released;

• Trace the flow of the spill to its maximum extent;

• Implement surface water quality sampling and monitoring;

• Initial site and surface water sampling of the water at origin of the spill and downstream and at an upstream

reference point should at a minimum record the following parameters:

• pH;

• Electrical Conductivity (EC); and

• Temperature (°C);

• Where initial surface water sampling downstream at the nearest property boundary indicates elevated levels

of the above parameters in concentrations that have the potential to cause significant environmental harm

then additional UEDP monitoring should be actioned as per below;

• All of the major QCLNG project ponds (existing and proposed) are identified in Figures 16-3, 16-4 and 16-5,

current at the date of publication of the plan:

• Where these ponds fall inside regional water treatment plant hubs, potential surface water monitoring

locations should be sourced from the Table 16-7 – Unforeseen Emergency Discharge Monitoring

Locations – Water Treatment Plant Hubs. These specific monitoring locations are also identified on the

corresponding catchment area Figures 16-4 and 16-5;

• Where these ponds fall outside the identified regional water treatment plant hubs, then suitable

upstream and downstream surface water monitoring locations should be determined by the on-site

FEO or relevant environmental coordinator with guidance from the Figures 16-3, 16-4 and 16-5 indicating

surface water catchments for the respective development regions. For the Southern Gas Fields region two

(2) potential monitoring locations have been proposed for consideration as these are active QGC Receiving

Environment Monitoring Plan (REMP) sites. For the Central Gas Fields and additional four (4) sites have

been located north of the Condamine River along Columboola Creek;

• Individual Pond Operating Plans identify sensitive receptors, surface and ground water users and

downstream land users who would be impacted by these receptors in case of emergency discharge such

as a dam break. The referenced list of downstream receptors and locations may be used as a guidance and

to assist in tracing the flow of the spill to its maximum extent;

• Where downstream groundwater allocations are identified in the IPOP, advice should be sought from the

Environment Manager (based on geologist input) for these ponds; and

• Conduct monitoring of nearby water monitoring bores if required where there is likelihood of significant

or long-term groundwater impacts from infiltration.

294

Figure 16-3 – QCLNG Project UEDP Catchment – Southern Gas Fields

!!

!

!!

!

!

!

!!!

!

_̂

_̂

_̂

C o n d a m i n e R i v e rC o n d a m i n e R i v e rC a t c h m e n tC a t c h m e n t

M a c i n t y r e & W e i r R i v e r sM a c i n t y r e & W e i r R i v e r sC a t c h m e n tC a t c h m e n t

M o o n i e R i v e rM o o n i e R i v e rC a t c h m e n tC a t c h m e n t

Kenya PondsCentralWTP

Sean 1David Pond

Jen 2(Janda)

Kenya EastStoragePond

Broadwater

Celeste

Glendower

RubyJo

HIGH ST

WINTONS RD

DALBYJANDOWAE RD

WARREGO HWY

DALBY KOGAN RD

MACALISTER BELL RDWARRAKOGAN RD

DAANDINENANDI RD

KOGANCONDAMINE RD

TARA KOGAN RD

SURATDEVELOPMENTAL RD

MOONIE HWY

CHINCHILL

AKOGAN

RD

W

ERANGA

NORTH RD

ROAD RD LAXTO

N ST

TALBOT ST

MACALISTER

WILKIE CREEK RD

BISLEY RD

ARNOLDS RD

CAMPBELLST

MIE

GU

N YA H

CT

GA

ITH

S R

D

BRYANT ST

TULL

Y RD

JONES RD

KUMARILLA

LANE

RED

LAN

D C

T

GAT

HS

RD

WILKIERD

KUM

BAR

ILLA

LAN

E

WIL

LAC

YS R

D

DAV

ISR

D

WEITZELS RD

HIGH ST

BRYAN

TSRD

DO

RA

NS

RD

KITTLES

RD

SAN

DY

CR

EEK

RD

MAR

ULA

RD

P LU

NKET

TR

D

BRIDLES RD

MI L LERSEASE M ENT RD

RYDERSRD

BO BBLACKS RD

WILKINS RD

ROSS RD

KUPUNN

DULEEN RD

FABI

ANS

RD

WINTONS RD

PERCYJURGS RD

WO

LKIS

RD

WA R

RA

WE I

RAC

CES

SR

D

LOGIE RD

WEBB RD

HILLIARS RD

DALG

LEI S

HR

D

ARN

OLD

SR

D

BID

S TR

UPS

RD

BISLE

YR

D

GRAHAMS RD

HO

SIE

RS

RD

TULLY RD

WAL

LAC

ES

RD

CO

X R

D

EHLMA RD

MC

CU

TCH

EON

S R

D

WARRA

JANDOWAE RD

KARINGALAPUNYAL RD

CREEK RD

S W

OLS

KIS

RD

STEINOHRTSRD

MALES DR

OLMS R

D

W ESTS RD

WOLFFS RD

WI LSONS RD

HAY

STA

CK

NO

RTH

RD

CASEYS RD

WIL

GA

DR

WARRA

MARNHULL RD

CHAPPELLS RD

OLD

PER

TH R

D

SKER

MAN

S RD

WHYALLA RD

BARTELSR

D

MCKAYS RD

PRIC

ES

RD

BUN

GYBAH

RD

CAVES RD

VIC

KER

Y R

D

V ELL

NAS

OSRD

HEALYS

CROSS ING RD

MITCHELLS RD

LEWING

TONR

D

BAN

ANA

BRID

GERD

BOBARTS RD

KUOUNNDULEEN RD

COOPERS RD

NORMAN RD

KUPUNN DULEEN RD

ELSD

ENS

RD

WARA

MARNHULL RD

SHARPES RD

GLEN MONA RD

CAR

LIS

HS

RD

SAN

DY

CR

EEK

RD

RID

GE

RD

HEA

LYS

RD

WO LSKIS RD

GRAYS RD

TERESE RD

STRETCHWORTH RD

MARTINS RD

FLETTS RD

SMITHS RD

HAR

WO

OD

S R

D

COLS RD

BILLABONG LANE

KOOKABURRA DR

COMMUNITYLANE

EMU PDE

BULLOAK DR

TOOMBILLA RD

CHARLES DR

FLETTSRD W

FOREST RD

HOADLEYS RD

WIL

LIAM

S R

D

TUCKERANG RD

CYPRESS RD

GR

AD

EL R

D

GRAHAMS RD

MACALISTER TULLY RD

BABANA

BRIDGE RD

WE

ST V

ALLE

Y R

D

HEREWARD RD

R C

LAR

KS

RD

CROSBIES RD

WEIAMBILLA RD

NAN

DI R

D

LUCHTS R D

MUHLINGS RD

KOFOEDS RD

HAMILTONS RD

WARRA

KOGAN RD

OHALLO

RANS

RD

JONES RD

HOPELANDSCHOOL RD

HURSES RD

THE

WAL

LABY

TR

K

SOUTH RD

CH

UR

CH

RD

TIMOTHY RD

FREES RD

FAGANS RD

MYRA RD

WEGNERS R

D

DAANDINE

SOLDIERS

RD

MATTHEWS RD

SMITHS RD

KLEID

ONS RD

JOSEPH RD

WARA MARNHULL RD

KUM

BAR

ILLA

LAN

E

FORESTRY RD

GRAHA MS RD

GREENBANK

ACCESSRD

WATTLE DR

NORTH KOGAN RD

CHINCHILLASIXTEEN MILE RD

SEIGMEIERS RD

PIRRINUAN

APUNYAL RD

NA U

SC

HUTZ

RD

MCKEE DR

WO

LSK

IS R

D

WARRAMARNHULL RD

ALEX

AN

DER

S R

DNORTH KOGAN RD

WAUGH RD

ARCHER

S CROSS

ING R

D

KUMBARILLA

FOREST RD

DAANDINE WARRA RD

TAYLORS

RD

NINE MILE STOCK ROUTE RD

KUMMEROWS RD

QUIRES RD

BROWNS RD

THETEN RD

B RIDERS RD

JO

NES RD

ROCKY CR

KUPU

NN

RD

WOLFFS RD

CRYSTAL CREEK RD

LEAHYS

RD

KUM

BAR

ILLA

RD

EHL M

ABO

UN

DARY

RD

SOUTH RD

BRAEM

ARW

ARRA

RD

YOUNGS RD

JEITZS RD

OLDW

ARREGO

HWY

BRAEMAR

BOUNDARY

RD

CLYN

ES RD

BOUNDARY RD

REDGUM RD

MACALISTERWILKIE CREEK RD

MACALISTER

PIRRINUAN RD

AVE

NU

E R

D

D UC

KLO

S CH

OOL

RD

HAYSTACK RD

SCHULTZS RD

CLA

RKE

S R

D

MULLERS RD

HOPELAND SCHOOL RD

MACALISTER

BELL RD

CAR

MO

DYS

LAN

E

WA

RRA

CANAGA

CR

EEKR

D

MONTROSE RD

CECIL PLAINS

MOONIE RD

STEINOHRTS RD

CROWDERS

CREEK RD

DAANDINE RD

WEITZELSRD

CAMBRIDGE

CROSSINGRD

BRO

A DW

ATE

RR

D

SIXTEEN MILE

HALL RD

WILKIN RD

BANANA

BRIDGERD

MCLEODS

RD

CARTENS LANE

RESERVEDR D

DUCKLO GULERA RD

GO

RAN

BA

LAN

E

KUMBARILLA LANE

MCLARENS RD

KE RRS RD

GU

LER

A R

D

H E AL

EYS

CR OS

SING RD

DULEEN DAANDINE RD

WARREGOHWY

KENTS RD

WAR

RAKO

GANRD

MILLBANK RD

CECIL PLAINS RD

DAANDINENANDI RD

JANDO

WAE

MAC

ALIS

TER

RD

BEEL BEE RD

WARREGOHWY

OLD MOONIE RD

CECIL PLAIN S MOONIE RD

KOGANCONDAMINE RD

HALLIFORD RD

TARA

KOGANRD


DALBYKOGAN RD

MOONIE

HWY

WIL

KIE

CR

EEK

FINCH CREEK

TWEN

TY SIX MILE C

REEK

SIXTEEN MILE CREEK

WAA

R W

AAR

CR

EEK

PIEB

ALD

CR

EEK

WAMBO CREEK

CRAWLERSCREEK

MOONIE RIVER

KOGA

N CR

EEK

DOWNFALL CREEK

CATT

LE C

REEK

WEIR R

IVER

HORSE GULLY

FINCH CREEK

EASTERN BRANCH CREEK

DURABILLA CREEK

TOOMBILLA CREEK

PIEB

ALD

CR

EEK

BRAEMAR C

REEK

BRO

ADW

ATER

GU

LLY

COORANGA CREEK

JANDOWAE C

REEK

DUNMORE CREEK

FINCH CREEK

CROW

DER

CREE

K

JINGI

JINGI

CREEK

JIMBOUR CREEK

MORAMBY CREEK

BACK C

REE

K

GILBERT GULLY

CONDAMINE RIVER

KOGAN CREEK

A

B

"Based on or contains data provided by the State of Queensland (Department of Natural Resources and Mines) 2013. In consideration of the State permitting use of this data you acknowledge and agree that the State gives no warranty in relation to the data (including accuracy, reliability, completeness, currency or suitability) and accepts no liability (including without limitation, liability in negligence) for any loss, damage or costs (including consequential damage) relating to any use of the data. Data must not be used for direct marketing or be used in breach of the privacy laws."

Note: Every effort has been made to ensure this information is spatially accurate. The location of this information should not be relied on as the exact field location.

Unforeseen Emergency Discharge Plan - South

8/07/2013 CL M_28494_03DATA SOURCE:

Map Projection: GDA94

±0 2 4 6 8

Kilometers

ADATE: CREATED BY: REV NO:MAP NO:MAP TYPE: OtherDCDB, Watercourses, Fields, Springs- DNRM; Roads - StreetPro v3LNCHECKED BY:

1:250,000SCALE: at (A3)

_̂ UEDD Monitoring Locations

Threatened Ecological Communities

Box Gum Grassy Woodland

Brigalow

Grassland

SEVT

Weeping Myall Woodlands

Trunkline - Water

Proposed Trunkline - Water

! Ponds

" Water Treatment Plant

Proposed UIC

QGC Owned Land

QCLNG EIS Area

Subcatchment Area

Major Watercourse

Minor Watercourse

Principal Road

Secondary Road

Label UEDD Monitoring Locations Easting NorthingA Condamine River at Banana Bridge crossing on the Warra-Kogan Road. 277441 7027643B Condamine River at Healy’s Crossing, south of Warra. 280411 7022132QCLNG Project UEDP Catchment – Southern Gas Fields

Kilometres

0 2 4 6 8 10

!!

!

!!

!

!

!

!!!

!

_̂

_̂

_̂


M a c i n t y r e & W e i r R i v e r sM a c i n t y r e & W e i r R i v e r sC a t c h m e n tC a t c h m e n t

M o o n i e R i v e rM o o n i e R i v e rC a t c h m e n tC a t c h m e n t

Kenya PondsCentralWTP

Sean 1David Pond

Jen 2(Janda)

Kenya EastStoragePond

Broadwater

Celeste

Glendower

RubyJo

HIGH ST

WINTONS RD

DALBYJANDOWAE RD

WARREGO HWY

DALBY KOGAN RD

MACALISTER BELL RDWARRAKOGAN RD

DAANDINENANDI RD

KOGANCONDAMINE RD

TARA KOGAN RD


MOONIE HWY

CHINCHILL

AKOGAN

RD

W

ERANGA

NORTH RD

ROAD RD LAXTO

N ST

TALBOT ST

MACALISTER

WILKIE CREEK RD

BISLEY RD

ARNOLDS RD

CAMPBELLST

MIE

GU

N YA H

CT

GA

ITH

S R

D

BRYANT ST

TULL

Y RD

JONES RD

KUMARILLA

LANE

RED

LAN

D C

T

GAT

HS

RD

WILKIERD

KUM

BAR

ILLA

LAN

E

WIL

LAC

YS R

D

DAV

ISR

D

WEITZELS RD

HIGH ST

BRYAN

TSRD

DO

RA

NS

RD

KITTLES

RD

SAN

DY

CR

EEK

RD

MAR

ULA

RD

P LU

NKET

TR

D

BRIDLES RD

MI L LERSEASE M ENT RD

RYDERSRD

BO BBLACKS RD

WILKINS RD

ROSS RD

KUPUNN

DULEEN RD

FABI

ANS

RD

WINTONS RD

PERCYJURGS RD

WO

LKIS

RD

WA R

RA

WE I

RAC

CES

SR

D

LOGIE RD

WEBB RD

HILLIARS RD

DALG

LEI S

HR

D

ARN

OLD

SR

D

BID

S TR

UPS

RD

BISLE

YR

D

GRAHAMS RD

HO

SIE

RS

RD

TULLY RD

WAL

LAC

ES

RD

CO

X R

D

EHLMA RD

MC

CU

TCH

EON

S R

D

WARRA

JANDOWAE RD

KARINGALAPUNYAL RD

CREEK RD

S W

OLS

KIS

RD

STEINOHRTSRD

MALES DR

OLMS R

D

W ESTS RD

WOLFFS RD

WI LSONS RD

HAY

STA

CK

NO

RTH

RD

CASEYS RD

WIL

GA

DR

WARRA

MARNHULL RD

CHAPPELLS RD

OLD

PER

TH R

D

SKER

MAN

S RD

WHYALLA RD

BARTELSR

D

MCKAYS RD

PRIC

ES

RD

BUN

GYBAH

RD

CAVES RD

VIC

KER

Y R

D

V ELL

NAS

OSRD

HEALYS

CROSS ING RD

MITCHELLS RD

LEWING

TONR

D

BAN

ANA

BRID

GERD

BOBARTS RD

KUOUNNDULEEN RD

COOPERS RD

NORMAN RD

KUPUNN DULEEN RD

ELSD

ENS

RD

WARA

MARNHULL RD

SHARPES RD

GLEN MONA RD

CAR

LIS

HS

RD

SAN

DY

CR

EEK

RD

RID

GE

RD

HEA

LYS

RD

WO LSKIS RD

GRAYS RD

TERESE RD

STRETCHWORTH RD

MARTINS RD

FLETTS RD

SMITHS RD

HAR

WO

OD

S R

D

COLS RD

BILLABONG LANE

KOOKABURRA DR

COMMUNITYLANE

EMU PDE

BULLOAK DR

TOOMBILLA RD

CHARLES DR

FLETTSRD W

FOREST RD

HOADLEYS RD

WIL

LIAM

S R

D

TUCKERANG RD

CYPRESS RD

GR

AD

EL R

D

GRAHAMS RD

MACALISTER TULLY RD

BABANA

BRIDGE RD

WE

ST V

ALLE

Y R

D

HEREWARD RD

R C

LAR

KS

RD

CROSBIES RD

WEIAMBILLA RD

NAN

DI R

D

LUCHTS R D

MUHLINGS RD

KOFOEDS RD

HAMILTONS RD

WARRA

KOGAN RD

OHALLO

RANS

RD

JONES RD

HOPELANDSCHOOL RD

HURSES RD

THE

WAL

LABY

TR

K

SOUTH RD

CH

UR

CH

RD

TIMOTHY RD

FREES RD

FAGANS RD

MYRA RD

WEGNERS R

D

DAANDINE

SOLDIERS

RD

MATTHEWS RD

SMITHS RD

KLEID

ONS RD

JOSEPH RD

WARA MARNHULL RD

KUM

BAR

ILLA

LAN

E

FORESTRY RD

GRAHA MS RD

GREENBANK

ACCESSRD

WATTLE DR

NORTH KOGAN RD


SEIGMEIERS RD

PIRRINUAN

APUNYAL RD

NA U

SC

HUTZ

RD

MCKEE DR

WO

LSK

IS R

D

WARRAMARNHULL RD

ALEX

AN

DER

S R

DNORTH KOGAN RD

WAUGH RD

ARCHER

S CROSS

ING R

D

KUMBARILLA

FOREST RD

DAANDINE WARRA RD

TAYLORS

RD

NINE MILE STOCK ROUTE RD

KUMMEROWS RD

QUIRES RD

BROWNS RD

THETEN RD

B RIDERS RD

JO

NES RD

ROCKY CR

KUPU

NN

RD

WOLFFS RD

CRYSTAL CREEK RD

LEAHYS

RD

KUM

BAR

ILLA

RD

EHL M

ABO

UN

DARY

RD

SOUTH RD

BRAEM

ARW

ARRA

RD

YOUNGS RD

JEITZS RD

OLDW

ARREGO

HWY

BRAEMAR

BOUNDARY

RD

CLYN

ES RD

BOUNDARY RD

REDGUM RD

MACALISTERWILKIE CREEK RD

MACALISTER

PIRRINUAN RD

AVE

NU

E R

D

D UC

KLO

S CH

OOL

RD

HAYSTACK RD

SCHULTZS RD

CLA

RKE

S R

D

MULLERS RD

HOPELAND SCHOOL RD

MACALISTER

BELL RD

CAR

MO

DYS

LAN

E

WA

RRA

CANAGA

CR

EEKR

D

MONTROSE RD

CECIL PLAINS

MOONIE RD

STEINOHRTS RD

CROWDERS

CREEK RD

DAANDINE RD

WEITZELSRD

CAMBRIDGE

CROSSINGRD

BRO

A DW

ATE

RR

D

SIXTEEN MILE

HALL RD

WILKIN RD

BANANA

BRIDGERD

MCLEODS

RD

CARTENS LANE

RESERVEDR D

DUCKLO GULERA RD

GO

RAN

BA

LAN

E

KUMBARILLA LANE

MCLARENS RD

KE RRS RD

GU

LER

A R

D

H E AL

EYS

CR OS

SING RD

DULEEN DAANDINE RD

WARREGOHWY

KENTS RD

WAR

RAKO

GANRD

MILLBANK RD

CECIL PLAINS RD

DAANDINENANDI RD

JANDO

WAE

MAC

ALIS

TER

RD

BEEL BEE RD

WARREGOHWY

OLD MOONIE RD

CECIL PLAIN S MOONIE RD

KOGANCONDAMINE RD

HALLIFORD RD

TARA

KOGANRD


DALBYKOGAN RD

MOONIE

HWY

WIL

KIE

CR

EEK

FINCH CREEK

TWEN

TY SIX MILE C

REEK

SIXTEEN MILE CREEK

WAA

R W

AAR

CR

EEK

PIEB

ALD

CR

EEK

WAMBO CREEK

CRAWLERSCREEK

MOONIE RIVER

KOGA

N CR

EEK

DOWNFALL CREEK

CATT

LE C

REEK

WEIR R

IVER

HORSE GULLY

FINCH CREEK

EASTERN BRANCH CREEK

DURABILLA CREEK

TOOMBILLA CREEK

PIEB

ALD

CR

EEK

BRAEMAR C

REEK

BRO

ADW

ATER

GU

LLY

COORANGA CREEK

JANDOWAE C

REEK

DUNMORE CREEK

FINCH CREEK

CROW

DER

CREE

K

JINGI

JINGI

CREEK

JIMBOUR CREEK

MORAMBY CREEK

BACK C

REE

K

GILBERT GULLY

CONDAMINE RIVER

KOGAN CREEK

A

B



Unforeseen Emergency Discharge Plan - South

8/07/2013 CL M_28494_03DATA SOURCE:


±0 2 4 6 8

Kilometers

ADATE: CREATED BY: REV NO:MAP NO:MAP TYPE: OtherDCDB, Watercourses, Fields, Springs- DNRM; Roads - StreetPro v3LNCHECKED BY:

1:250,000SCALE: at (A3)




Brigalow

Grassland

SEVT


Trunkline - Water

Proposed Trunkline - Water

! Ponds


Proposed UIC

QGC Owned Land

QCLNG EIS Area

Subcatchment Area

Major Watercourse

Minor Watercourse

Principal Road

Secondary Road

Label UEDD Monitoring Locations Easting NorthingA Condamine River at Banana Bridge crossing on the Warra-Kogan Road. 277441 7027643B Condamine River at Healy’s Crossing, south of Warra. 280411 7022132

295

Figure 16-4 – QCLNG Project UEDP Catchment – Central Gas Fields

X

X

XXXXXX

XXXX

"

"

!!

!

!!

!

!!!

!

!

!!

_̂

_̂

_̂_̂

_̂

_̂

_̂_̂

B a l o n n e R i v e rB a l o n n e R i v e rC a t c h m e n tC a t c h m e n t


Glen Eden

Kenya EastStorage Pond

Central WTP

Lauren 1

Windibri WTP Berwyndale South 4

McNulity Pond

Large Kenya PondOrana Pond 1,2,3,4,5RhynieKenya Treated Water Pond Kenya Sedimentation

.

Celeste

CHINCH ILLA

SOUT H RD

TARA KOGAN RD

KOGAN CONDAMINE RD

CH

INCHILLATARA

RD

WARREGO HWY

DOWNES ST

LEICHHARDTHWY

INVERAI RD

CONDAMINEKOGAN RD

LEICHHARDTHWY

CHINCHILL

AKOGAN

RD

THO

RPE

ST

BAKI

NGBO

ARD

RD

BLAN

CHARD

ST

CO

LLS

CT

POLLARDST

BISLEY RD

TRAC

K

DAW

SON

S GATE

RD

QUIRKS RD

CO

LE ST

WERONA RD

RUB

BISH

DUM

P RD

JONESS RD

MIZ

PAH

DR

MCKENNA RD

CAM

PIO

NR

D

PARK

ST

BIS

LEY

RD

GA

SKE

LAN

E

CO

LOM

B

ULA STOCK RTE

WEITZELS RD

GEARYS RD

RID

GE

RD

BARKERSRD

MAC

KIE

ST

MARNILANE

RA

CEC

OU

RS E

RD

H

UNTER

RD

CECILIA RD

KRUGERS

RD

LEICH HAR

DT

RD

GOWS RD

GLE

ESO

NS

RD

GORMLEYS

RD

DAW

SON

GAT

ES

RD

PEB

BLEW

OOD ST

MCGOVERNS

RD

ELER SLEALANE E

STEVENSONS RD

WALSHS RD

DAH

LKES

RD

SPINIFIX RD

TEM

P OR

ARI L

YC

LOSE

DR

D

VERONICA RD

BURNCLUITHRD

RO

YALT

Y R

D

AIN

SWO

R TH

ST

SMIT

HS

RD

CLOSED R

D

BOOTHS RD

RYALLS RD

STANKE RD

OLD

PER

TH R

D

LON

DO

NBR

IDG

E R

D

HO

BSO

NSRD

VAN

RE

NAN

S R

D

OAK ST

CHINCHILLA

TARA RD

GLASSON ST

STE

WAR

TS R

D

RIF

LER

ANG

E R

D

CHIN

CHILLA

WOND

AI RD

HO

LM

ES RD

LEICHHARDT

HWY

BUTT

ERFL

Y R

D

C BR

AITH

WAITE

S

RD

BELL

BIR

D R

D

A GRAHAMS RD

WEI

RR

D

AKE

RS

GU

LLY

RD

MCNULTY ST

WEIR RD

TOLMAH CT

NOTHURFTS RD

B TENNYSONS RD

GORRINES RD

CH

INCH

ILLA

SOU

THR

D

OLIV

ERSRD

RYALLS RD

BUTTS RD

LITHGO

WS

RD

BARTELSRD

ALKIRA LANE

HOPELANDSCHOOL RD

CONDAMINEKOGAN RD

MARY RD

REIDS RD

ELLERSLIE

LANDRD

OLD M A

N

LAGOO N

RD

WE

IR L

AN

E

ROXBOROU GH RD

BUTLERS RD

PRIC

E S

T

PHIPPSSUBDIVISION RD

CLOSED RD

BRYA

NTS

RD

CAM

PIO

NS

RD

RENNICKS RD

CLOSED RD

DAYBREAK RD

GOSPERS RD

CHILDS RD

BRENNANS RD

CLOSED RD

THAMES RD

MC

AULL

IFFE

S R

D

WILLI

AMS RD

WIN DM

ILL

RD

SIXTEEN MILE HALL RD

TREGATHLYN R

D

ZELLER ST

CLO

SED

RD

RYANS RD

DOUGA LLS RD

TOM

ALO

U LA

NE

MARY RD

GRAYS RD

WIN

FIEL

D RD

TERESE RD

STEINOHRTS RD

R WALLS RD

MACHANESS RD

ELE RSLEALANE

AUBURN RD

CHANCES

PLA

IN RD

FLETTS RD

MULLERS RD

ELER

SLE

A LA

NE

BILLABONG LANE

KYTES RD

KOOKABURRA DR

LLOYD ST

BURNT

BRIDG

E RD

EMU PDE

HORSWOODS RD

VANR

ENAN

S RD

CHARLES DR

FLETTSRD W

CLARKS RD

RAVENS R

D

VAN RENANS RD

SOUTH RD

DOHERTYS RD

MCLENNANS RD

WE

ST V

ALLE

Y R

D

PASCOES R D

PHIP

PS R

D

GLENOLIVE RD

DAHLERS RD

R K

ER

RS

RD

CLOSED RD

HONNERYS RD

DAV

IES

RD

HUBBARDSR

D

KOFOEDS RD O

HALLOR

ANSRD

KER

WIC

KS R

D

MALES R D

GAZZARDS RD

NOTHDU RF T

SRD

TAMES RD

QUIRES RD

ROBBOS RD

TREASURES RD

AERODROME RD

SOU

THG

LEN

NO

RTH

RD

TEMPORARILY CLOSED RD

HURSES RD

THE

WAL

LABY

TR

K

CH

UR

CH

RD

PHIP

PS R

D

LEICHHARDT

HWY

KRUGERSRD

THOMPSONS

RD

RACE COURSE RD

WAI

NSRD

KUMMEROWS RD

GREENSWAMP RD

BURNCLUITH SCHOOL RD

A GRAHAMS RD

WIL

SON

RD

GRAYS RD

WARREGOHWY

SHERIFFS RD

BARAKULA RD

DAV

IES

RD

SUNNYGLEN RD

FORTUNE

DR

CRYSTAL CREEK RD

BLACKB

UR

NS R

D

HUBBARDS RD

CLOSED RD

SUTT

ON

S R

D

LEES

RD

DR

ILDO

OL R

D

S HE

RW

OO

DR

D

ORCHARD RD

RED

HILLR

D

CAM E

BYRD

GO

RAN

BA

LAN

E

BRAITHWAITES RD

NO

EL

RO

BIN

SON

SR

D

VANRENANS RD

UNDULLACREEK RD

SOUTH RD

B TENNYSONS RD

B KERRS RD

JOSEPH RD

WED

RATS

RD

GOLDEN GLOW RD

ENGINE RD

MYRA RD

C KERRS RD


CLYN

ES RD

MALES DR

RYALLS TO HOOKSW OODSTOCK RTE

BIDGOODS RD

TIMOTHY RD

AVE

NU

E R

D

STA

INE

S R

D

FREEMAN

SR

D

LUCKY RD

LEBSA

NFTS R

D

BROWNLIES RD

MC

NU

LTY

RD

BAKERS RD

HOPELAND SCHOOL RD

MONTROSE RD

MILLERS RD

SCOULLERS RD

WEITZELSRD

MILLBANK RD

ISO

NS

RD

DONOGHUE RD

CAM

EBY

RD

BLAC KSWAMP RD

OLD CAMEBY RD

HOOKSWOOD PELHAM R D

CARTENS LANE

ARCHER

S CROSS

ING R

D

MCCASKERS RD

BOORT KOI TO

RYALLS STOCK R T E

GO

OM

BI F

AIR

YME

ADO

W R

D

HU

MBUG

RD

WARRENS

RD

GREENSWAMP RD

THE PEAK RD

FAIRYMEADOW RD

UPPER HUMBUG RD

WEIAMBILLA RD

WERANGA NORTH RD

TARA

KOGANRD

BENN

ETT

SCHO

OLRD

KOGAN

CONDAMINERD

KOGAN

CONDAMINE RD

CHIN

CH

IL L A

T AR

AR

D

WARREGOHWY

CHINCHILLA

MILES

BOTTLE

TREE

CR

EEK

UNDULLACREEK

ELEV

EN M

ILE

CR

EEK

UNDULLACREEK

COLUMBOOLA CREEK

CONDAMINE RIVER

TWEN

TY SIX MILE C

REEK

SIXTEEN MILE CREEK

COBB

AREE

NA C

REEK

WAMBO CREEK

HORSE GULLY

HUMBUG CREEK

ELEV

ENM

ILE

CR

EEK

COOLOOMALA CREEK

WIEAM

BILLA CR

EEK

CHARLEYS C

REEK

CAM

EBY

CR

EEK

UNDULLA CREEK

SAN

DY

CR

EEK

UN

DU

LLA

CR

EEK

ROCKY CREEK

BRANCH

CREEK

NINE MILE CREEK

BAKING BOARD CREEK

JACK

CREEK

DO

GW

OO

D C

REE

K

BOG

RA

MBI

LLA

CR

EEK

F

CD

I

E

GJ



Unforeseen Emergency Discharge Plan - Central

9/07/2013 LN M_28494_02DATA SOURCE:

Map Projection: GDA94 Zone 56

±0 2 4 6

Kilometers

ADATE: CREATED BY: REV NO:MAP NO:MAP TYPE: OtherDCDB, Watercourses, Fields, Springs- DNRM; Roads - StreetPro v3CLCHECKED BY:

1:200,000SCALE: at (A3)




Brigalow

Grassland

SEVT


Trunkline - Water

! Ponds


Proposed UIC

QGC Owned Land

QCLNG EIS Area

Subcatchment Area

Major Watercourse

Minor Watercourse

Principal Road

Secondary Road

Label UEDD Monitoring Locations Easting NorthingC Nine Mile Creek – upstream QGC Kenya site boundary (tributary of Wieambilla Creek) 251743 7015878D Wieambilla Creek – upstream QGC Kenya site boundary 245393 7015923E Wieambilla Creek – downstream QGC Kenya site boundary 243916 7018865F Wieambilla Creek –downstream QGC Kenya site at the Kogan-Condamine Road crossing. 239703 7022777G Condamine River –upstream QGC Windibri site boundary 235081 7028002H Condamine River –downstream site – outside of managed irrigation reach at Glen Olive Road crossing 220305 7026170I Sandy Creek – upstream QGC Windibri site boundary 234947 7023476J Condamine River –downstream QGC Windibri site boundary 231740 7029169

QCLNG Project UEDP Catchment – Central Gas Fields

Kilometres

0 2 4 6 8 10

X

X

XXXXXX

XXXX

"

"

!!

!

!!

!

!!!

!

!

!!

_̂

_̂

_̂_̂

_̂

_̂

_̂_̂



Glen Eden

Kenya EastStorage Pond

Central WTP

Lauren 1

Windibri WTP Berwyndale South 4

McNulity Pond

Large Kenya PondOrana Pond 1,2,3,4,5RhynieKenya Treated Water Pond Kenya Sedimentation

.

Celeste

CHINCH ILLA

SOUT H RD

TARA KOGAN RD

KOGAN CONDAMINE RD

CH

INCHILLATARA

RD

WARREGO HWY

DOWNES ST

LEICHHARDTHWY

INVERAI RD

CONDAMINEKOGAN RD

LEICHHARDTHWY

CHINCHILL

AKOGAN

RD

THO

RPE

ST

BAKI

NGBO

ARD

RD

BLAN

CHARD

ST

CO

LLS

CT

POLLARDST

BISLEY RD

TRAC

K

DAW

SON

S GATE

RD

QUIRKS RD

CO

LE ST

WERONA RD

RUB

BISH

DUM

P RD

JONESS RD

MIZ

PAH

DR

MCKENNA RD

CAM

PIO

NR

D

PARK

ST

BIS

LEY

RD

GA

SKE

LAN

E

CO

LOM

B

ULA STOCK RTE

WEITZELS RD

GEARYS RD

RID

GE

RD

BARKERSRD

MAC

KIE

ST

MARNILANE

RA

CEC

OU

RS E

RD

H

UNTER

RD

CECILIA RD

KRUGERS

RD

LEICH HAR

DT

RD

GOWS RD

GLE

ESO

NS

RD

GORMLEYS

RD

DAW

SON

GAT

ES

RD

PEB

BLEW

OOD ST

MCGOVERNS

RD

ELER SLEALANE E

STEVENSONS RD

WALSHS RD

DAH

LKES

RD

SPINIFIX RD

TEM

P OR

ARI L

YC

LOSE

DR

D

VERONICA RD

BURNCLUITHRD

RO

YALT

Y R

D

AIN

SWO

R TH

ST

SMIT

HS

RD

CLOSED R

D

BOOTHS RD

RYALLS RD

STANKE RD

OLD

PER

TH R

D

LON

DO

NBR

IDG

E R

D

HO

BSO

NSRD

VAN

RE

NAN

S R

D

OAK ST

CHINCHILLA

TARA RD

GLASSON ST

STE

WAR

TS R

D

RIF

LER

ANG

E R

D

CHIN

CHILLA

WOND

AI RD

HO

LM

ES RD

LEICHHARDT

HWY

BUTT

ERFL

Y R

D

C BR

AITH

WAITE

S

RD

BELL

BIR

D R

D

A GRAHAMS RD

WEI

RR

D

AKE

RS

GU

LLY

RD

MCNULTY ST

WEIR RD

TOLMAH CT

NOTHURFTS RD

B TENNYSONS RD

GORRINES RD

CH

INCH

ILLA

SOU

THR

D

OLIV

ERSRD

RYALLS RD

BUTTS RD

LITHGO

WS

RD

BARTELSRD

ALKIRA LANE

HOPELANDSCHOOL RD

CONDAMINEKOGAN RD

MARY RD

REIDS RD

ELLERSLIE

LANDRD

OLD M A

N

LAGOO N

RD

WE

IR L

AN

E

ROXBOROU GH RD

BUTLERS RD

PRIC

E S

T

PHIPPSSUBDIVISION RD

CLOSED RD

BRYA

NTS

RD

CAM

PIO

NS

RD

RENNICKS RD

CLOSED RD

DAYBREAK RD

GOSPERS RD

CHILDS RD

BRENNANS RD

CLOSED RD

THAMES RD

MC

AULL

IFFE

S R

D

WILLI

AMS RD

WIN DM

ILL

RD

SIXTEEN MILE HALL RD

TREGATHLYN R

D

ZELLER ST

CLO

SED

RD

RYANS RD

DOUGA LLS RD

TOM

ALO

U LA

NE

MARY RD

GRAYS RD

WIN

FIEL

D RD

TERESE RD

STEINOHRTS RD

R WALLS RD

MACHANESS RD

ELE RSLEALANE

AUBURN RD

CHANCES

PLA

IN RD

FLETTS RD

MULLERS RD

ELER

SLE

A LA

NE

BILLABONG LANE

KYTES RD

KOOKABURRA DR

LLOYD ST

BURNT

BRIDG

E RD

EMU PDE

HORSWOODS RD

VANR

ENAN

S RD

CHARLES DR

FLETTSRD W

CLARKS RD

RAVENS R

D

VAN RENANS RD

SOUTH RD

DOHERTYS RD

MCLENNANS RD

WE

ST V

ALLE

Y R

D

PASCOES R D

PHIP

PS R

D

GLENOLIVE RD

DAHLERS RD

R K

ER

RS

RD

CLOSED RD

HONNERYS RD

DAV

IES

RD

HUBBARDSR

D

KOFOEDS RD O

HALLOR

ANSRD

KER

WIC

KS R

D

MALES R D

GAZZARDS RD

NOTHDU RF T

SRD

TAMES RD

QUIRES RD

ROBBOS RD

TREASURES RD

AERODROME RD

SOU

THG

LEN

NO

RTH

RD

TEMPORARILY CLOSED RD

HURSES RD

THE

WAL

LABY

TR

KC

HU

RC

H R

D

PHIP

PS R

D

LEICHHARDT

HWY

KRUGERSRD

THOMPSONS

RD

RACE COURSE RD

WAI

NSRD

KUMMEROWS RD

GREENSWAMP RD

BURNCLUITH SCHOOL RD

A GRAHAMS RD

WIL

SON

RD

GRAYS RD

WARREGOHWY

SHERIFFS RD

BARAKULA RD

DAV

IES

RD

SUNNYGLEN RD

FORTUNE

DR

CRYSTAL CREEK RD

BLACKB

UR

NS R

D

HUBBARDS RD

CLOSED RD

SUTT

ON

S R

D

LEES

RD

DR

ILDO

OL R

D

S HE

RW

OO

DR

D

ORCHARD RD

RED

HILLR

D

CAM E

BYRD

GO

RAN

BA

LAN

E

BRAITHWAITES RD

NO

EL

RO

BIN

SON

SR

D

VANRENANS RD

UNDULLACREEK RD

SOUTH RD

B TENNYSONS RD

B KERRS RD

JOSEPH RD

WED

RATS

RD

GOLDEN GLOW RD

ENGINE RD

MYRA RD

C KERRS RD


CLYN

ES RD

MALES DR

RYALLS TO HOOKSW OODSTOCK RTE

BIDGOODS RD

TIMOTHY RD

AVE

NU

E R

D

STA

INE

S R

D

FREEMAN

SR

D

LUCKY RD

LEBSA

NFTS R

D

BROWNLIES RD

MC

NU

LTY

RD

BAKERS RD

HOPELAND SCHOOL RD

MONTROSE RD

MILLERS RD

SCOULLERS RD

WEITZELSRD

MILLBANK RD

ISO

NS

RD

DONOGHUE RD

CAM

EBY

RD

BLAC KSWAMP RD

OLD CAMEBY RD

HOOKSWOOD PELHAM R D

CARTENS LANE

ARCHER

S CROSS

ING R

D

MCCASKERS RD

BOORT KOI TO

RYALLS STOCK R T E

GO

OM

BI F

AIR

YME

ADO

W R

D

HU

MBUG

RD

WARRENS

RD

GREENSWAMP RD

THE PEAK RD

FAIRYMEADOW RD

UPPER HUMBUG RD

WEIAMBILLA RD

WERANGA NORTH RD

TARA

KOGANRD

BENN

ETT

SCHO

OLRD

KOGAN

CONDAMINERD

KOGAN

CONDAMINE RD

CHIN

CH

IL L A

T AR

AR

D

WARREGOHWY

CHINCHILLA

MILES

BOTTLE

TREE

CR

EEK

UNDULLACREEK

ELEV

EN M

ILE

CR

EEK

UNDULLACREEK

COLUMBOOLA CREEK

CONDAMINE RIVER

TWEN

TY SIX MILE C

REEK

SIXTEEN MILE CREEK

COBB

AREE

NA C

REEK

WAMBO CREEK

HORSE GULLY

HUMBUG CREEK

ELEV

ENM

ILE

CR

EEK

COOLOOMALA CREEK

WIEAM

BILLA CR

EEK

CHARLEYS C

REEK

CAM

EBY

CR

EEK

UNDULLA CREEK

SAN

DY

CR

EEK

UN

DU

LLA

CR

EEK

ROCKY CREEK

BRANCH

CREEK

NINE MILE CREEK

BAKING BOARD CREEK

JACK

CREEK

DO

GW

OO

D C

REE

K

BOG

RA

MBI

LLA

CR

EEK

F

CD

I

E

GJ



Unforeseen Emergency Discharge Plan - Central

9/07/2013 LN M_28494_02DATA SOURCE:

Map Projection: GDA94 Zone 56

±0 2 4 6

Kilometers


1:200,000SCALE: at (A3)




Brigalow

Grassland

SEVT


Trunkline - Water

! Ponds


Proposed UIC

QGC Owned Land

QCLNG EIS Area

Subcatchment Area

Major Watercourse

Minor Watercourse

Principal Road

Secondary Road

Label UEDD Monitoring Locations Easting NorthingC Nine Mile Creek – upstream QGC Kenya site boundary (tributary of Wieambilla Creek) 251743 7015878D Wieambilla Creek – upstream QGC Kenya site boundary 245393 7015923E Wieambilla Creek – downstream QGC Kenya site boundary 243916 7018865F Wieambilla Creek –downstream QGC Kenya site at the Kogan-Condamine Road crossing. 239703 7022777G Condamine River –upstream QGC Windibri site boundary 235081 7028002H Condamine River –downstream site – outside of managed irrigation reach at Glen Olive Road crossing 220305 7026170I Sandy Creek – upstream QGC Windibri site boundary 234947 7023476J Condamine River –downstream QGC Windibri site boundary 231740 7029169

296

Figure 16-5 – QCLNG Project UEDP Catchment – Northern Gas Fields

X

X

XXXX

"!

!

_̂

_̂

_̂

_̂

_̂

Woleebee Creek(Cells 1-3)NWTP Pond 1,2,3,4,5

D a w s o n R i v e rD a w s o n R i v e rC a t c h m e n tC a t c h m e n t


Polaris Pond

Northern WTP


Bull Gul ly

JACK

SON

WAN

DOAN

RD

LEICHH

ARDT

HW

Y

DALGOWAN

WILLIAMS RD

JOUNQUAYS RD

STIL

LER

ST

TIP

RD

ROSE RD

ROCHECREEK RD

OLD F ORRESTRD

DONNERS RD

NAR WONA

H

CROS SING

RD

IOLAN

THE R

D

DUNCANACCESS RD

CU

RR

ANS

LAN

E

STANLEYPARKRD

JAC

KS

ON SCHOOL

BU

S RTE

GALES RD

BOWLINGS RD

HO

PKIN

SRD

TIPRD

KEHLSRD

WIN

DE Y

ERRD

MAR

KW

ELL

S R

D

TRACK

BARNEYS

LANE

SOM

MERFIELD RD

EZZYSRD

NUMBER

ONE LANE

WOOLEEBEE RD

TRACK

MYRANGA RD

HUNTS RD

ELD

ERS

RD

NUMBERSIX RD

Q

RD

DALW

OG

A N

SOUTH

RD

WH

ATM

ANS

LAN

E

MILRAIN RD

BAKERS RD

BAKERS

RD

HAI

RS

RD

BRUGGEMANNS RD

SHEADYS RD

KOWGURAN RD

MAYES RD

KNIG

HTS

RD

V RD

GI LIGUL G ULRD

MCA

LLIS

TERS

RD

MARTIN

D ALE RD

M ONE RD

MYALL PARK TOHOOKSWOOD RD

JAM

ES

RD

ALDRIDGE RD

GREENS RD

MT

OR

GAN RD

WOOLEEBEE

RD

ARCHINALLS

RD

OFF

RE T

REAT RD

SAW PITLANE

C

ATTLEDOWNS RD

CROSSROADSRD

GLE

NLE

A R

D

M TW O RD

GILIGULGUL RD

ANNAMAROO RD

MYAL L

PARK RD

RETREAT RD

YAPUNYA RD

RACEC

OUR

SE

LANE

WELDONS RD

BIGVALLEY RD

UPP

ER D

OW

NFA

LLC

REE

K R

D

WILLETTS MILL RD

BOGAND

ILL A

RD

GURULMU

NDI R

D

BUNDI RD

TEMPORARILY

CLOSED RD

DIL

LON

S R

D

COMBABULA RD

JUA N

DA

HCREE

KR

D

CURR

AN

S

LANE

DRILLHAM

SCHOOLR

D

HOWARDSRD

WARRAMOO RD

CLARKE CREEK RD

CORMACKS RD

CO

RFI

ELD

S R

D

TUMBA DOWNS RD

NEL

DER

S R

D

OLD

INJUNE RD

GROSMONT RD

EWIN

GDALE R

D

DUNN

SR

D

CO

RM

ACKS

RD

BUNDI TWO RD

K RD

Q RD

LUCKY DOWNS RD

EYS RD

AQUA

PARK RD

GLE

ND O

ANRD

GLENBARWIG RD

HORNET BANK RD

WIL

LETT

SRD

DRAGONCRESTRD

DA

LGO

WAN

WI L

LIAM

SR

D

CATTLEDOWNS RD

GADSBYS RD

KABUNGAR

D

N ORTH DULACCAHALL RDFRIZZELLS RD

OFF

CR

OSS

RO

ADS

RD

HASLOPS RD

OLDCHINCHILLA RD

WHITELEYS RD

BA

ILEY SR

D

DU

LAC

CA

NO

RTH

RD

HICKS RD

L RD

GREENS RD

COCKATOO RD

CORBETTS BACK RD

HANSENS RD

NUMBERSEVEN RD

OFF LAWTON

ROBINSON

RD

HENRYS RD

SANDS RD

BOGANDILLA RD

PONTY

POOL RD

DEEARNE RD

NUMBER ONEOF

F

J ACKSON WANDOAN

RD

KTW

OR

D

DOWNFALL

CREEK RD

BUNGILDOON RD

RED RANGE RD

CHAPMANS RD

DEVONCOURT RD

TRASKS LANE

CECILS RD

BOGANDILLAWEST RD

NUMBERTWO RD

MYA

L LP A

RK

RD

DALWOGAN RD

MANTOVASRD

GLENAUBYN RD

CROSSROADS RD

BUNDI RD

HE R

MIT

A GE

RD

GULLAGIMBI RD

NUM

BER

FIVE

RD

LAWTON ROBINSON RD

WILDFLOWER RD

DULACCA

NORTH

RD

PARAD

I SE

DO

WN

SR

D

MUNDALYA RD

CROSSROADS RD

FOSTERS RD

KINFAUNS RDBR

ADSHAW

SRD

RYALS RD

MT MYRTLE RD

NUMBERFOUR RD

BUR

RA

DO

OR

D

MURRAYS RD

OLD CHINC HILLA RD

COAT

ES

RD

BURUNGA LANE

WALSHS RD

PEAK

ES R

D

WAL

LAN

CR

EEK RD

UPPERDOWNFALL RD

WELSHS RD

TARANA

CROSSI NG

RD

HOMEBUSH RD

ZILL

MANS RD

CRACOW RD

MAIDENS

RD

SUNDOWN RD

YEOVIL RD

STILLER

BROS RD

SMITHS RD

GURULMUNDI RD

GOLDENS RD

MIDDLE CREEK RD

BOORAL RD

PERRETTSRD

LTR

EE

CREEK

RD

BUN GABAN RD

TWELVEMILE RD

POTTERS

FLAT RD

INJUNE RD

ROMATAROOM RD

NATHAN RDJA

C

KSON

WA

ND

OA

N

RD

LEICHHARDT

HWY

WANDOAN

TAROOM

CO

CK

ATO

OC

REE

K

JUANDAH

CREEK

TCHANNING C

REEK

WOLE

EBEE

CREEK

WOLE

EBEE

CREEK

HORSE GULLY

BENTLEY

CR

EEK

TCH

ANN

ING

CR

EEK

BOTTLE TREE CREEK

CO

CK

ATOO

CR

EEK

TCHANNING

CREEK

WO

LEEB

EE C

REEK

WO

LEEB

EECR

EEK

KENNEDYCREEK

PIGEONCREEK

JUANDAH

CREEK

BULLOCK CREEK

JUANDAH CREEK

CONLOI CREEK

JUAN

DAH

GU

LLY

(MAI

NBR

ANC

H)

JUANDAH CREEK

DAWSON RIVER

KINNOUL CREEK

PINE

CREEK

EURO

MBA

H CR

EEK

KUNGAY MUNGAY CREEK

JUAN

DAH

CR

EEK

SAWPITCREEK

BYRNE CREEK

NINEMILECREEK

DOWNFALL CREEK

NINEMILECREEK

L TREE CREEK

MAY

NE C

REEK

NINEMILECREEK

DAWSON RIVER

HO

RS

E C

REE

K(M

AIN

BR

ANC

H)

DO

GW

OO

DC

REE

K

SAN

DY

CR

EEK

ROCHE CREEK

BRIDGE CREEKWERINGA CREEK

ROCHE CREEK

ELEVEN MILE CREEK

CAMISLA CREEK

SCOTT CREEK

SCOTCHY CREEK

SWAM

P CR

EEK

LONG GULLY

COMBABULA CREEK

JUANDAH GULLY

CANAL CREEK

BLACKBOY CREEK

BUNGABAN CREEK

BULL

OC

K G

ULL

Y

DAWSON RIVER

FOU

R M

ILE CR

EEK

STAKEYAR

D

CR

EEK

TWEN

TY MILE C

REE

K

CLARK CREEK

NO

ON

GA C

REEK

RAMYARD CREEK

PADD

YS C

REEK

CO

MBI

DIB

AN C

REE

K

WALLAN CREEK

BACK CREEK

HORSE CREEK

(EASTBRANCH)

PON

TYPOO

L CR

EEK

MUD CREEK

WANDOAN CREEK

HORSE CREEK

K

L

M

N

O



Unforeseen Emergency Discharge Plan - North

8/07/2013 LN M_28494_01DATA SOURCE:


±0 2 4 6 8 10

Kilometers


1:300,000SCALE: at (A3)




Brigalow

Grassland

SEVT


Trunkline - Water

! Ponds


Proposed UIC

QGC Owned Land

QCLNG EIS Area

Subcatchment Area

Major Watercourse

Minor Watercourse

Principal Road

Secondary Road

Label UEDD Monitoring Locations Easting Northing

K Wandoan Creek – un-named tributary downstream north-east of QGC Delga Park site at Bakers Road Crossing (adjacent QGC LaPilli property 773046 7093793

L Wandoan Creek – downstream north of QGC Delga Park site at Sundown Road Crossing (adjacent QGC LaPilli property) 771624 7096884

M Wandoan Creek – downstream site at Bundi Road Crossing 783916 7104970N Junda Creek – downstream of Woleebee Creek confluence at Booral Road Crossing 789104 7117403O Junda Creek – upstream of Dawson River Confluence at Leichardt Hwy Crossing 780337 7160753

X

X

XXXX

"!

!

_̂

_̂

_̂

_̂

_̂

Woleebee Creek(Cells 1-3)NWTP Pond 1,2,3,4,5

D a w s o n R i v e rD a w s o n R i v e rC a t c h m e n tC a t c h m e n t


Polaris Pond

Northern WTP


Bull Gul ly

JACK

SO

N

WAN

DOAN

RD

LEICHHARDT

HWY

DALGOWAN

WILLIAMS RD

JOUNQUAYS RD

STIL

LER

ST

TIP

RD

ROSE RD

ROCHECREEK RD

OLD F ORRESTRD

DONNERS RD

NAR WONA

H

CROS SING

RD

IOLAN

THE R

D

DUNCANACCESS RD

CU

RR

ANS

LAN

E

STANLEYPARKRD

JAC

KS

ON SCHOOL

BU

S RTE

GALES RD

BOWLINGS RD

HO

PKIN

SRD

TIPRD

KEHLSRD

WIN

DE Y

ERRD

MAR

KW

ELL

S R

D

TRACK

BARNEYS

LANE

SOM

MERFIELD RD

EZZYSRD

NUMBER

ONE LANE

WOOLEEBEE RD

TRACK

MYRANGA RD

HUNTS RD

ELD

ERS

RD

NUMBERSIX RD

Q

RD

DALW

OG

A N

SOUTH

RD

WH

ATM

ANS

LAN

E

MILRAIN RD

BAKERS RD

BAKERS

RD

HAI

RS

RD

BRUGGEMANNS RD

SHEADYS RD

KOWGURAN RD

MAYES RD

KNIG

HTS

RD

V RD

GI LIGUL G ULRD

MCA

LLIS

TERS

RD

MARTIND ALE RD

M ONE RD

MYALL PARK TOHOOKSWOOD RD

JAM

ES

RD

ALDRIDGE RD

GREENS RD

MT

OR

GAN RD

WOOLEEBEE

RD

ARCHINALLS

RD

OFF

RE T

REAT RD

SAW PITLANE

C

ATTLEDOWNS RD

CROSSROADSRD

GLE

NLE

A R

D

M TW O RD

GILIGULGUL RD

ANNAMAROO RD

MYAL L

PARK RD

RETREAT RD

YAPUNYA RD

RACEC

OUR

SE

LANE

WELDONS RD

BIGVALLEY RD

UPP

ER D

OW

NFA

LLC

REE

K R

D

WILLETTS MILL RD

BOGAND

ILL A

RD

GURULMU

NDI R

D

BUNDI RD

TEMPORARILY

CLOSED RD

DIL

LON

S R

D

COMBABULA RD

JUA N

DA

HCREE

KR

D

CURR

AN

S

LANE

DRILLHAM

SCHOOLR

D

HOWARDSRD

WARRAMOO RD

CLARKE CREEK RD

CORMACKS RD

CO

RFI

ELD

S R

D

TUMBA DOWNS RD

NEL

DER

S R

DOLD

INJUNE RD

GROSMONT RD

EWIN

GDALE R

D

DUNN

SR

D

CORM

ACKS

RD

BUNDI TWO RD

K RD

Q RD

LUCKY DOWNS RD

EYS RD

AQUA

PARK RD

GLE

ND O

ANRD

GLENBARWIG RD

HORNET BANK RD

WIL

LETT

SRD

DRAGONCRESTRD

DA

LGO

WAN

WI L

LIAM

SR

D

CATTLEDOWNS RD

GADSBYS RD

KABUNGAR

D

N ORTH DULACCAHALL RDFRIZZELLS RD

OFF

CR

OSS

RO

ADS

RD

HASLOPS RD

OLDCHINCHILLA RD

WHITELEYS RD

BA

ILEY SR

D

DU

LAC

CA

NO

RTH

RD

HICKS RD

L RD

GREENS RD

COCKATOO RD

CORBETTS BACK RD

HANSENS RD

NUMBERSEVEN RD

OFF LAWTON

ROBINSON

RD

HENRYS RD

SANDS RD

BOGANDILLA RD

PONTY

POOL RD

DEEARNE RD

NUMBER ONEOF

F

J ACKSON WANDOAN

RD

KTW

OR

D

DOWNFALL

CREEK RD

BUNGILDOON RD

RED RANGE RD

CHAPMANS RD

DEVONCOURT RD

TRASKS LANE

CECILS RD

BOGANDILLAWEST RD

NUMBERTWO RD

MYA

L LP A

RK

RD

DALWOGAN RD

MANTOVASRD

GLENAUBYN RD

CROSSROADS RD

BUNDI RD

HE R

MIT

A GE

RD

GULLAGIMBI RD

NUM

BER

FIVE

RD

LAWTON ROBINSON RD

WILDFLOWER RD

DULACCA

NORTH

RD

PARAD

I SE

DO

WN

SR

D

MUNDALYA RD

CROSSROADS RD

FOSTERS RD

KINFAUNS RD

BRAD

SHAWS

RD

RYALS RD

MT MYRTLE RD

NUMBERFOUR RD

BUR

RA

DO

OR

D

MURRAYS RD

OLD CHINC HILLA RD

COAT

ES

RD

BURUNGA LANE

WALSHS RD

PEAK

ES R

D

WAL

LAN

CR

EEK RD

UPPERDOWNFALL RD

WELSHS RD

TARANA

CROSSI NG

RD

HOMEBUSH RD

ZILL

MANS RD

CRACOW RD

MAIDENSRD

SUNDOWN RD

YEOVIL RD

STILLER

BROS RD

SMITHS RD

GURULMUNDI RD

GOLDENS RD

MIDDLE CREEK RD

BOORAL RD

PERRETTSRD

LTR

EE

CREEK

RD

BUN GABAN RD

TWELVEMILE RD

POTTERS

FLAT RD

INJUNE RD

ROMATAROOM RD

NATHAN RD

JAC

KSON

WA

ND

OA

N

RD

LEICHHARDT

HWY

WANDOAN

TAROOM

CO

CK

ATO

OC

REE

K

JUANDAH

CREEK

TCHANNING C

REEK

WOLEEBEE

CREEK

WOLE

EBEE

CREEK

HORSE GULLY

BENTLEY

CR

EEK

TCH

ANN

ING

CR

EEK

BOTTLE TREE CREEK

COCKATOO

CREEK

TCHANNING

CREEK

WO

LEEB

EE C

REEK

WOLE

EBEE

CREE

K

KENNEDYCREEK

PIGEONCREEK

JUANDAH

CREEK

BULLOCK CREEK

JUANDAH CREEK

CONLOI CREEK

JUAN

DAH

GU

LLY

(MAI

NBR

ANC

H)

JUANDAH CREEK

DAWSON RIVER

KINNOUL CREEK

PINE

CREEK

EURO

MBA

H CR

EEK

KUNGAY MUNGAY CREEK

JUAN

DAH

CR

EEK

SAWPITCREEK

BYRNE CREEK

NINEMILECREEK

DOWNFALL CREEK

NINEMILECREEK

L TREE CREEK

MAY

NE C

REEK

NINEMILECREEK

DAWSON RIVER

HO

RS

E C

REE

K(M

AIN

BR

ANC

H)

DOG

WO

OD

CREE

K

SAN

DY

CR

EEK

ROCHE CREEK

BRIDGE CREEK

WERINGA CREEK

ROCHE CREEK

ELEVEN MILE CREEK

CAMISLA CREEK

SCOTT CREEK

SCOTCHY CREEK

SWAM

P CR

EEK

LONG GULLY

COMBABULA CREEK

JUANDAH GULLY

CANAL CREEK

BLACKBOY CREEK

BUNGABAN CREEK

BULL

OC

K G

ULL

Y

DAWSON RIVER

FOU

R M

ILE CR

EEK

STAKEYARD

CREEK

TWEN

TY MILE C

REE

K

CLARK CREEK

NO

ON

GA C

REEK

RAMYARD CREEK

PADDYS CREEK

CO

MBI

DIB

AN C

REE

K

WALLAN CREEK

BACK CREEK

HORSE CREEK

(EASTBRANCH)

PON

TYPOO

L CR

EEK

MUD CREEK

WANDOAN CREEK

HORSE CREEK

K

L

M

N

O



Unforeseen Emergency Discharge Plan - North

8/07/2013 LN M_28494_01DATA SOURCE:


±0 2 4 6 8 10

Kilometers


1:300,000SCALE: at (A3)




Brigalow

Grassland

SEVT


Trunkline - Water

! Ponds


Proposed UIC

QGC Owned Land

QCLNG EIS Area

Subcatchment Area

Major Watercourse

Minor Watercourse

Principal Road

Secondary Road

Label UEDD Monitoring Locations Easting Northing

K Wandoan Creek – un-named tributary downstream north-east of QGC Delga Park site at Bakers Road Crossing (adjacent QGC LaPilli property 773046 7093793

L Wandoan Creek – downstream north of QGC Delga Park site at Sundown Road Crossing (adjacent QGC LaPilli property) 771624 7096884

M Wandoan Creek – downstream site at Bundi Road Crossing 783916 7104970N Junda Creek – downstream of Woleebee Creek confluence at Booral Road Crossing 789104 7117403O Junda Creek – upstream of Dawson River Confluence at Leichardt Hwy Crossing 780337 7160753

QCLNG Project UEDP Catchment – Northern Gas Fields

Kilometres

0 2 4 6 8 10

297

Immediate response

• All immediate response actions as per procedure in Section 16.5.1 ;

• Review the relevant IPOP for relevant contact details for external notifications to people deemed to be

potentially impacted including;

• Sensitive Receptors – Landowners, or Persons At Risk (PAR);

• Surface Water Allocations;

• Groundwater Allocations; and

• External Emergency Contacts


• Review the IPOP and implement the specific emergency management procedures. Standard emergency

action considerations are identified in Table 16-5.

Item Emergency Action Considerations

1

• Potential human injuries and environmental harm should be managed through an On-Scene Coordinator. The

On-Scene Coordinator will assist the General Manager in notifying the population at risk from the emergency

and, if required, assisting with evacuation of those people

• The potential risk of, or further, human injuries should be managed by removing any nonessential staff from

the area of the incident

2

• Risks associated with the incident should be managed by barricading off or delineating danger areas (if safe to

do so) the affected area and restricting access

• In assessing the extent of a potential uncontrolled release, no attempt should be made to traverse across or

immediately downstream of the affected area

• In the case of an imminent release, the potential release area should be barricaded (if safe to do so). Temporary

barricading options will be dependent on availability and mobilisation times (and could include temporary

earth bunds or sand bags).

3

• Water delivery pumps should be switched off

• In the event of an imminent release, excess water should be pumped or decanted from the pond if practical

and safe to do so

4

• Prevention of imminent or additional release should be managed in consultation with the Engineering Design

Officer (EDO) responsible for the certification of the Pond.

• A QGC-approved earthmoving contractor should be mobilised to site promptly and, if required, the EDO

responsible for the certification of the pond should also be mobilised to site to direct stabilisation works where

practicable to do so.

5

• In the unlikely event that the uncontrolled release has not been contained, the Queensland State Emergency

Services (SES) should be contacted. However this should not be taken as a transfer of responsibility from

the On-Scene Coordinator and support personnel. All pond specific emergency procedures should still be

implemented.

6• If there is an uncontained flow which may impact infrastructure, the relevant local council and appropriate

service providers should be contacted

7• Remediation works should be undertaken in consultation with the QGC Site Construction Manager, or Field

Operation Manager or Asset Owner, Lead Pond Engineer and RPEDA

Table 16-5 – QCLNG pond emergency actions and considerations

298

Notification

As per the procedure in Section 16.5.1.

Remediation and Monitoring

As per the procedure in Section 16.5.1 and where required as per Section 16.6.4.

16.6.2 UNCONTAINED DISCHARGE OF CSG WATER, BRINE OR CHEMICALS FROM WATER TREATMENT

FACILITIES

During operation and maintenance of QGC's Water Treatment Plans, significant or long-term environmental impact

through uncontained discharges or spills are not expected nor considered likely. This is primarily due to the plant

design, layout and operational controls in place. However, as the corresponding potential consequences of an

uncontained discharge or spoll is categorised as a primary risk scenario, specific UEDP measures have been identified

below for QGC's water treatment plant hubs.

Table 16-6 provides a summary of typical mechanisms to avoid, minimise and manage risks of uncontained

emergency discharge from water treatment plant hubs. This table should be read in conjunction with the water

management criteria and controls identified in Section 16.3 and Table 16-4 for the purposed of risk associated with

regulated storages located adjacent the Water Treatment Plants.

Where initial surface water sampling downstream at the nearest property boundary indicates elevated levels in

concentrations that have the potential to cause significant environmental harm then additional UEDP monitoring

should be actioned. Potential surface water monitoring locations should be sourced from the Table 16.7 Unforeseen

Emergency Discharge Monitoring Locations – Water Treatment Plant Hubs (also identified on the Figure 16.4 and 16.5)

and monitoring of nearby water monitoring bores should be carried out where there is likelihood of significant or

long-term groundwater impacts from infiltration.

Notification



As per the procedure in Section 18.5.1 and where required Section 13.6.4.

299

Design, monitoring and maintenance Control measures Manage if releases occur

• Treated water quality is to be

regularly monitored to determine

compliance with the adopted

criteria for authorised release and

beneficial reuse

• The WTPs are bunded where

practical to capture any CSG water

or chemical spills including sludge,

fuel, oil and chemical storage areas

• Daily and weekly inspections

indicates infrastructure integrity

• Completion of routine

environmental checklists

• Rapid close-out of incidents and

non-conformances

• All personnel to attend a site

induction which contains relevant

environmental requirements

• Additional and ongoing

environmental training as required

• Constant supervision on site

• Environmental audits of work sites,

sub-contractors and compliance

issues

• Planned and unplanned

maintenance regime indicates

infrastructure integrity

• Regular environmental alerts and

toolboxes

• Maintenance of adequate capacity

and redundancy in the water

infrastructure to provide a buffer

in case of WTP malfunction and/or

emergency incident

• Water quality controls will include

some or all of the following as

required:

• Detention storage sufficient

to manage stormwater

quantity and a combination

of an sediment separator and

stormwater rock swales to

manage stormwater quality

• Stormwater quality

improvement devices (SQID)

including gross pollutant

traps to reduces the impact of

contaminated water entering

the first flush pond

• A procedure specific to

emptying the first flush pond

• Testing of water quality in

chemical service pits prior to

removal

• Minimising disturbance and

bare areas, and where this is

unavoidable, use of sediment

control devices. During the

operation of the plant, the

scheduling of heavy vehicle

movements will (where

possible) occur during daytime

hours (7 am to 6 pm) including

chemical deliveries

• Mitigation and monitoring

procedure implemented



reporting

• Management Controls for the plant

during emergency event include:

• System modification to reduce

or divert inflows and investigate

integrity/quality concerns,

corrective actions taken where

required

• Isolate or change source water

• System modification to

recirculate outflows back to

storage ponds during remedial

works and testing

• Manage production (including

reduction of in-flows) to be

instigated during remedial

works

Table 16-6 – Mechanisms to avoid, minimise and manage the risks of emergency discharge from water treatment plants

300

Water Treatment

Plant HubsAssociated Storages Surface Water Monitoring Locations

Approximate

Coordinates

(DATUM: WGS84)

Kenya Central

Water Treatment

Plant (CWTP)

• Orana Pond 1

• Orana 2, 3 and 4 RO Reject

and Brine Ponds

• Rhynie Pond

• Kenya Pond

• WTP Sedimentation Pond

• Kenya Treated Water Pond

Nine Mile Creek – upstream QGC Kenya site

boundary (tributary of Wieambilla Creek)

0251743 easting

7015878 northing

Wieambilla Creek – upstream QGC Kenya site

boundary

0245393 easting

7015923 northing

Wieambilla Creek – downstream QGC Kenya site

boundary

0243916 easting

7018865 northing

Wieambilla Creek – downstream QGC Kenya site at

the Kogan-Condamine Road crossing.

0239703 easting

7022777 northing

Condamine River – upstream QGC Windibri site

boundary

0235081 easting

7028002 northing

Condamine River – downstream site – outside

of managed irrigation reach at Glen Olive Road

crossing

0220305 easting

7026170 northing

Windibri Water

Treatment Plant

(WWTP)

Berwyndale South Pond 4 Sandy Creek – upstream QGC Windibri site boundary 0234947 easting

7023476 northing

Condamine River – upstream QGC Windibri site

boundary

0235081 easting

7028002 northing

Condamine River – downstream QGC Windibri site

boundary

0231740 easting

7029169 northing

Condamine River – downstream site – outside

of managed irrigation reach at Glen Olive Road

crossing

0220305 easting

7026170 northing

Woleebee Creek

Northern WTP

(NWTP)

Woleebee Creek Cells 1-3

Northern NTP Pond

NWTP Pond 2 Treated Water,

NWTP Ponds 3, 4 and 5

Sedimentation, RO Reject, Brine

and Clean In Place (CIP) waste

Wandoan Creek – unnamed tributary downstream

north-east of QGC Delga Park site at Bakers Road

Crossing (adjacent QGC LaPilli property)

773046 easting

7093793 northing

Wandoan Creek – downstream north of QGC Delga

Park site at Sundown Road Crossing (adjacent QGC

LaPilli property)

771624 easting

7096884 northing

Wandoan Creek – downstream site at Bundi Road

Crossing

783916 easting

7104970 northing

Juandah Creek – downstream of Woleebee Creek

confluence at Booral Road Crossing

789104 easting

7117403 northing

Juandah Creek* – upstream of Dawson River

Confluence at Leichardt Hwy Crossing

780337 easting

7160753 northing

Notes:• The Water Treatment Plant Hub's proposed monitoring sites are to be used as a guide to UEDP sampling. These sites should only be used where safe access is

possible and where relevant to the specific UED event.• Upstream reference sites for the Northern WTP hub should be located where possible on the QGC Delga Park site using upstream drainage locations where water

is present or flowing during the event. • * Upstream Dawson River 8 Springs monitoring location for Dawson River 8 Springs. This site should only be triggered where event-related quality impacts are

detected beyond other upstream monitoring locations identified.

Table 16-7 – Unforeseen emergency discharge monitoring locations – water treatment plant hubs

301

16.6.3 SERIOUS RUPTURE OR DAMAGE TO CSG WATER AND BRINE TRUNKLINES

QGC's regionalised water treatment plants and water management system are underpinned by a network of

trunklines primary for the transport and untreated CSG water. In the future; in accordance with the development

of QGC’s brine management strategy (see Chapter 15) this network of trunklines may require to be expanded to

also include the transport of brine between treatment facilities to end use destinations. This section has been

developed based on the design information and management strategies already employed for water trunklines

and equally cover the potential for transport of brine and concentrates.

Review of any future design and development details of potential brine and CSG brine and concentrate trunklines

will be made if require to amend and update relevant portions of the avoidance, mitigation and minimisation

principles and actions procedures outlined below. Table 16.8 provides a summary of typical mechanisms to avoid,

minimise and manage risks of serious rupture or damage to CSG water and brine trunklines. The table identifies

that one of the key primary methods for avoidance of such events is though robust design and installation of

the lines. This table should be read in conjunction with the water management criteria and controls identified in

Section 16.3.

Design, Monitoring and Maintenance Control Measures Manage if Releases Occur

• Design elements of water trunklines

include:

• Concrete lined carbon steel

• Minimum 20 year design life

from first LNG production

• Nominally sized to limit the

maximum flow velocity to

between 2 to 3 m/s as an initial

estimate

• Flowmeters at each end to

detect leaks

• Pressure indication at the inlet

• Back pressure control valve may

be installed at the end of the

trunkline if elevation changes

may result in significant

negative static pressure being

experienced

• Surge protection to prevent

damage of the pipeline due to

water hammer

• Combination air/vacuum vents

installed at all high points for

removal of gas and to prevent

boiling of liquids due to vacuum

formation

• Pipelines are pressure tested to

ensure there are no leaks prior to

commissioning

• Surveillance monitoring of

vegetation health surrounding

facilities and along the ROW

• Routine Infrastructure integrity

inspections

• Online flow telemetry and control

mechanisms to allow:

• Leakage rates to be inferred by

flow metering trends and/or

variance between inflow and

outflow meters

• Control mechanisms to diver or

isolate flows

• Installation and maintenance of

marker posts along the ROW

• Obtaining accurate as built data

to support internal GIS systems

and Dial Before YOU DIG (National

Referral Service for Information on

Underground Pipes and Cables)

• Pipeline Integrity Management Unit

(PIMS).

• Mitigation and monitoring

procedure implemented


• System modification to divert

or isolate flows and investigate

integrity/quality concerns, corrective

actions taken where required


reporting

Table 16-8 – Mechanisms to avoid, minimise and manage the risks of serious rupture or damage to CSG water and brine trunklines

302

Any failure, rupture or breach of a CSG water or brine trunkline or collection header has the potential to release

contaminant that may cause environmental harm depending on the extent of the release and its location.

The potential volume of liquid released will be determined by:

• The pipe diameter;

• Volume of water contained in the pipe;

• Distance of the particular piece of pipe to isolation valves;

• Height of the failure point relative to the rest of the pipeline;

• Flow rates; and

• The time it takes to isolate the line.

Assessment and monitoring (as per the procedures in Section 16.5)

• Section 16.5.1 for CSG water, or, Section 16.5.3 for brines and concentrates;

• Where initial surface water sampling downstream at the nearest property boundary indicates elevated levels

of the listed parameters in concentrations that have the potential to cause significant environmental harm

then additional UEDP monitoring should be actioned;

• All of the major QCLNG water trunklines (existing and proposed near term) are identified in Figures 16.3, 16.4

and 16.5, current at the date of publication of the plan:

• Where any failure scenario is located in close proximity to a regional Water Treatment Plant Hub, potential

surface water monitoring locations should be sourced from the Table 16.7 Unforeseen Emergency

Discharge Monitoring Locations – Water Treatment Plant Hubs. These specific monitoring locations are

also identified on the corresponding catchment area Figures 16.4 and 16.5);

• Where any failure scenario is located outside the identified regional Water Treatment Plant Hubs, then

suitable upstream and downstream surface water monitoring locations should be determined by the

on-site FEO or relevant environmental coordinator with guidance from the Figures 16.3, 16.4 and 16.5

indicating surface water catchments for the respective development region; and

• Conduct monitoring of nearby water monitoring bores if required where there is likelihood of significant or

long term groundwater impacts from infiltration.

Notification



As per the procedure in Section 18.5.1 and where required as per Section 16.6.4.

16.7 UEDP REMEDIATION AND MONITORING

The type scale and extent of remediation works required to manage an unforeseen emergency discharge will

be developed specific to the particular situation, event location including the extent of the environmental harm

caused and with consultation and engagement with impacted stakeholders.

Where initial review of remedial works and assessment of monitoring as per Section 18.5.1 indicates ongoing risk

of an adverse or significant effect on the receiving environment or stakeholders, QGC will develop a Site Specific

Remediation Plan (SSRP).

The SSRP will be developed using input from the relevant engineering, environmental and technical disciplines

and be structured to be consistent with the principles and objectives of the QGC Remediation, Rehabilitation,

Recovery and Monitoring Plan (RRRMP) QCLNG-BX00-ENV-PLN-000026 as approved by The Department in

accordance with gas field Conditions 15 to 17.

303

The SSRP will include but not be limited to:

• An assessment of initial remedial works conducted

• Potential and actual effects on the receiving environment and the need for further investigation and

assessment;

• An assessment of potential and actual effects on environmental values and MNES and/or surface and

groundwater users; and

• Details of proposed remedial and rehabilitation actions to be taken including:

• areas to be rehabilitated;

• land uses of each area to be rehabilitated prior to disturbance;

• vegetation communities present, including a map of suitable scale displaying the distribution of

vegetation communities including impacted areas;

• proposed revegetation methods;

• timeframes for rehabilitation; and

• ongoing monitoring and reporting .

An initial SSRP (where required) will be developed within a further 10 business days post the provision of an

incident report (see Section 16.5.1) where practicable. On completion of the remediation and rehabilitation

activities identified in the SSRP a summary report will be prepared covering the following items:

• A final assessment of the actual or potential environmental harm that has occurred or may occur in the

longer term as a result of the release;

• The success or otherwise of actions taken at the time of the incident to prevent or minimise environmental

harm;

• The successes of remediation and rehabilitation activities carried out under the plan; and

• Any outstanding or ongoing issues and/or concerns.

The initial SSRPs and Summary Reports will be made available to The Department and the Queensland Regulator

as part of the engagement phase and during the ongoing remediation and monitoring process.

16.8 EMERGENCY SCENARIO SIMULATION

16.8.1 INTRODUCTION

The basis of design and operating philosophy of the water management infrastructure is to manage produced

water without the need to overflow or make an emergency discharge. To demonstrate the robustness of the

system, an extreme emergency scenario has been simulated. This simulation takes the format of an artificial

series of events affecting the Central and Northern WTP facilities. The scenario is set outside the normal

operating parameters of the system.

16.8.2 SCENARIO ASSUMPTIONS

Figure 16-6 illustrates the key infrastructure elements in the system. The simulation assumes:

• The scenario runs from the onset of major depressurisation in the Southern and Central Gas Fields in

December 2013;

• The key section begins in December 2014 when water treatment capacity is at a peak of up to 112 ML/d for

Central and Southern and 100 ML/d for Northern;

• Throughout 2013, the Central plant undergoes routine planned maintenance and upgrade shutdowns;

• All inflows from the Central and Southern regional ponds report to the raw water ponds system, Orana 1

or Orana 5;

304

Figure 16-6 – Central and Southern Gas Fields collection and storage networks

Pump

Existing ponds

Under construction or to be built

Development blocks

MCNULTY200 ML

MCNULTY

AVON DOWNS

CHINCHILLA WEIR

SUNW

ATER

KENYA WTP 112 ML/d

INDUSTRIAL REUSE

MINING SECTORREUSE

WINDIBRI WTP

6 ML/d

BELLEVUE

LAUREN104 ML

BERWYNDALE

BERWYN S / WINDIBRI

MATILDA – JOHN

LAUREN

ARGYLE

KENYA

CODIE

ORANA 15,158 ML

KENYA TREATED WATER

170 ML

KATE

ORANA 52,130 ML

KENYA EAST

JAMMAT / OWEN

MARGARET

KENYA EAST597 ML

KENYA 2,001 ML

RHYNIE3,719 ML

DAVID

SEAN

DAVID334 ML

CELESTE310 ML

JORDAN

WILL / RIDGEWOOD S

MICHELLE

WILL / RIDGEWOOD N

CELESTE

MYRTLE

TEVIOT

ABERDEEN

MARIE RAE

MYRTLE150 ML

RUBY-JO760 ML

JEN

ISABELLA

RUBY-JO

POPPY

BARNEY

CLUNIE

COUGALS

BROADWATER

HARRY

GLENDOWER

BROADWATER370 ML

GLENDOWER481 ML

POND 44,370 ML

RO R

EJEC

T

ORANA 4752 ML

ORANA 31,040 ML

ORANA 21,280 ML

RWF

BRINE CONCENTRATOR

CONC

ENTR

ATED

BRI

NE

FRO

M N

ORT

HER

N W

TP

GLEN EDEN115 ML

305

• From December 2014, additional inflows of 754 ML are added to the production profile, due to precipitation

falling directly onto pond surfaces. The ponds do not have any upstream catchments so there are no overland

flow inputs; and

• A plant breakdown has caused a stop in the treatment process or the offtake pipeline is unable to discharge

the treated water.

The objective of the analysis is to answer two key questions:

• If the treatment plant is not operating how long can CSG water abstraction continue before the raw water

ponds reach maximum operating level?

• When the raw water ponds are full, how long can the regional ponds hold water below Maximum Operating

Level (MOL) before CSG water abstraction has to be curtailed?

16.8.3 SIMULATION RESULTS

The results for Central and Southern are displayed in Figure 16-7.

Figure 16-7 – Emergency Event: Simulation results

1,000Volu

me

Stor

age

Cap

acit

y (M

L) /

Vol

um

e in

Sto

rage

(ML)

01/

11/2

013

01/

12/2

013

01/

01/

2014

01/

02/2

014

01/

03/

2014

01/

04/

2014

01/

05/

2014

01/

06

/20

14

01/

07/

2014

01/

08/

2014

01/

09

/20

14

01/

10/2

014

01/

11/2

014

01/

12/2

014

01/

01/

2015

01/

02/2

015

01/

03/

2015

01/

04/

2015

01/

05/

2015

01/

06

/20

15

01/

07/

2015

01/

08/

2015

01/

09

/20

15

01/

10/2

015

01/

11/2

015

01/

12/2

015

01/

01/

2016

01/

02/2

016

01/

03/

2016

01/

04/

2016

01/

05/

2016

01/

06

/20

16

01/

07/

2016

01/

08/

2016

01/

09

/20

16

01/

10/2

016

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

11,000

12,000

13,000

Updated 13 November 2013

WTPs and Pond 4 transferWithdrawal rate (ML/d)Current storage (Rynie + Orana 1 + Orana 5): 4400 ML

Rynie

Orana

Orana 5

South flows50 days of WTPs shutdown

(01/11/14-20/01/15)

Flood event December 2014

160

140

120

100

80

60

40

20

0K

WTP

Wit

hd

raw

al R

ate

(ML/

d)

306

• On the left side of the graph is the commencement of major depressurisation in January 2014;

• Inflows gradually increase over the year to a maximum of 92 ML/d;

• The yellow line displays the withdrawal rate (i.e. the volume of water treated in the plant) planned shutdowns

for maintenance during the early part of 2013 are included;

• The blue line displays the increasing combined raw water pond levels as water production ramps up;

• In December 2014, an extreme event similar to the Queensland December 2010 event is added to the

simulation – 754 ML for the Kenya WTP complex and 118 ML for the NWTP complex;

• The total valume is derived from total December 2010 rainfall of 348.8 mm (from BoM as measured at Miles

Post Office, station number 042023) and total area of the ponds (e.g. 2,191,000 m2 for the Kenya complex);

• The simulation reverts to mean rainfall from January 2015 which, at 95.4 mm, is higher than the January 2011

recorded total of 88.6 mm;

• In addition 50 days of plant shutdown are added to the simulation;

• The lack of treatment capacity results in a sharp increase in pond operating level, and

• Despite water backing up in the raw water ponds, the Maximum Operating Level (MOL) is not exceeded.

Therefore, under such a scenario the production profile can be managed without discharge of untreated water

while a plan for plant startup or wells shutdown can be implemented. Furthermore, if this analysis considered

the regional storage ponds in the Southern Gas Fields, an additional 40 days storage is available. Therefore, the

results can be considered as conservative and should represent a worst case condition over the life of the project.

Running the same scenario for the Northern Gas Fields, the duration for shut down for the Northern Gas Fields

is limited to 26 days using the same operating assumptions as for the Central and Southern case. Although

this is less time than for the Central and Southern Gas Fields, it still provides sufficient time to manage water

production such that all raw water is contained within the ponds. Again, a plan for either start-up of water

facilities or the shut-down of wells would be prepared to contain and treat all raw water. As a back-up, an

additional 46 days of storage is available in the Polaris regional pond.

In case of water quality issues, water can be recirculated for further treatment and temporarily stored in existing

ponds. If out-of-spec water is detected by the in-line monitor at the Treated Water Pond Outlet, inflow to the

Treated Water Pond ceases and the treated water is re-circulated to the Raw Water Pond.

The plants are operated under a performance incentive whereby the operator must meet the Nomination that

QGC has set for delivery of water to the respective beneficial use schemes. By managing production incentives

the potential for extended shutdowns is minimised. Therefore, an extended shutdown of up to 50 days is not

considered to be a likely scenario.

In terms of the key questions of the analysis:

• The Kenya complex can store CSG water for up to 50 days without treatment. Those 50 days are more than

adequate to address any plant failures.

• The regional pond complex adds another 40 days to the storage capacity;

• Under a similar scenario the NWTP has 26 days of storage available – also sufficient time to address plant

failures. With an additional 46 days regional storage; and

• To avoid reaching MOL the water production profile will be managed including inflows.

# Department Condition Description Completion date Status

Pre-Dec 2012 Post-Dec 2012

35 52d ivCompletion of upgraded emergency response plans to cover all regulated water and waste storage facilities

April 2014

36 49h, 52d i IV 53B c Develop Emergency Discharge Management Plan July 2013

Commitments completed Evergreen Commitments

Commitments work in progress Firm deliverables for that month