Upstream Controlled Document - General Template Aus

Bridging Document WAA 4100 ENV PLN

For internal Origin use and distribution only. Subject to employee confidentiality obligations.

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

THE THREE WHATS

What can go wrong? What could cause it to go wrong? What can I do to prevent it?

Integrated Gas

BEHARRA SPRINGS 2016 FLOWLINE AND PIPELINE INSPECTION AND CATHODIC PROTECTION SYSTEM UPGRADE BRIDGING DOCUMENT Beharra Springs Gas Facility Environmental Plan (OEUP-W4100-PLN-ENV-003 Revision 3.3)

This document has been developed to link the works associated with undertaking the Beharra Springs flowline and sales gas pipeline inspections and cathodic protection system upgrade to the Beharra Springs Gas Facility Environmental Plan (EP). Where the EP does not specifically address the proposed activities and/or the potential environmental risks and management measures associated with the Activity details have been provided in this Bridging Document.

Review record

Rev Date Reason for issue Reviewer/s Consolidator Approver

0 07/10/2016 Final – issued for DMP approval K.Hunt / S.Maloney

K.Presley S.Cornish

Beharra Springs 2016 Flowline and Pipeline Inspection and Cathodic Protection System Upgrade Bridging Document

Released on 07/10/2016 – Revision 0 - Status Final issued for DMP approval Document Custodian is IG-Operations-Conv-HSE-Environment

Origin Energy Resources Limited: ABN 66 007 845 338 Page 2 of 17

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal. Based on template: AUS 1000 IMT TMP 4881989_Revision 2_IFU_03/03/2016_IG-SystemsInfo-DocRecordsMgt

Table of contents

1. Purpose and Contact 3

2. Scope 3

3. Definitions and acronyms 3

4. Description of the Activity 4

4.1 Mobilisation of plant and equipment 4 4.2 Flowline and sales gas pipeline inspections 4 4.3 Cathodic protection system upgrade 5 4.4 Waste 6 4.5 Hazardous materials / chemicals 7 4.6 Staff, accommodation and facilities 8

5. Location of the activity 8

6. Timing of the activity 10

7. Existing environment 11

8. Risk assessment 11

9. Other relevant documents 12

10. References 12

11. Document information and history 12

11.1 Controlled copy distribution 13

Table of figures

Figure 1 : Beharra Springs Gas Facility Locality Plan 9

Figure 2 : Approximate location of 3 excavation locations for the flowline inspection 10

Figure 3 : Approximate location of 2 excavation locations for the sales gas pipeline inspection 10

List of appendices

Appendix A Cross Reference to EP 14

Appendix B Beharra Springs Gas Facility Risk Register 15

Appendix C Indicative Layout of Cathodic Protection Upgrade 16





1. Purpose and Contact

Origin Energy Resources Limited (Origin) has developed the Environmental Plan – Beharra Springs Gas Facility (OEUP-W4100-PLN-ENV-003, Revision 3.3) (the EP) as an overarching framework for the management of the environmental aspects of Origin’s operations at the Beharra Springs Gas Facility (the Facility).

This document, Beharra Springs Facility 2016 Flowline and Inspection and Cathodic Protection System Upgrade (the Bridging Document) has been developed to link the Activity to the mitigation and management measures in the EP. Where the EP does not specifically address the Activity and/or the potential environmental risks associated with the Activity details have been provided in this Bridging Document.

The contact details for the Facility are as follows:

Mr Scott Cornish Operations Manager (Acting) & HSE Manager Conventional Operations Origin Energy Resources Limited t 07 3028 5720 m 0429783460 e [email protected]

2. Scope

The scope of this Bridging Document includes the following activities;

direct inspection of the Beharra Springs low pressure flowline and sales gas pipeline

installation of upgraded impressed current cathodic protection (ICCP) system.

This Bridging Document has been prepared in accordance with the Guidelines for the Preparation and Submission of an Environment Plan (DMP 2012) and provides:

a description of the activity (section 4);

the location of activity (section 5);

the proposed timing of activity (section 6);

any other specifics not included in the EP being bridged to (section 4, section 7 and Appendix A);

a statement that all risks associated with the Activity are included in, and will be managed as per the management/mitigation measures outlined in the EP being bridged to (section 8); and

identification of any other documents bridged to (section 9).

3. Definitions and acronyms

Definitions, acronyms and terms used in this document:

Term/Acronym Definition/Expansion

Bridging Document Beharra Springs 2016 Flowline and Pipeline Inspection and Cathodic Protection System Upgrade Bridging Document (WAA 4100 ENV PLN, Revision 0)

CP Cathodic Protection

DCVG Direct current voltage gradient

DER Department of Environment Regulation

DMP Department of Mines and Petroleum

Environmental Licence refers to the Environmental Licence issued by the Western Australian Department of Environment Regulation under the Environmental Protection Act 1986

EP Environmental Plan – Beharra Springs Gas Facility (OEUP-W4100-PLN-ENV-003, Revision 3.3)

Groundwater Licence refers to the Licence to Take Water issued by the Western Australian Department





Term/Acronym Definition/Expansion

of Water under the Rights in Irrigation and Water Act 1914

ha Hectare(s)

HDPE High density polyethylene

IBC Intermediate bulk container

ICCP Impressed Current Cathodic Protection

kL Kilolitre(s)

km Kilometre(s)

L Litre(s)

m Metre(s)

mm Millimetre(s)

Origin Origin Energy Resources Limited

the Activity refers to the Beharra Springs 2016 flowline and sales gas pipeline inspection and the impressed current cathodic protection system upgrade works

the Facility Beharra Springs Gas Facility

UT Ultrasonic testing

4. Description of the Activity

This bridging document relates to the 2016 low pressure flowline and sales gas pipeline works program which consist of:

Redback to Beharra Springs Gas Plant flowline and sales gas pipeline direct inspections and coating repair; and

Impressed current cathodic protection system upgrade.

With the exception of the Activities described in the following sections, normal operation and maintenance activities (including routine inspections and monitoring) associated with the Facility will continue as per the relevant regulatory approvals, the EP and the Facility’s Safety Case WAA-4100-SAF-PLN-00003.

4.1 Mobilisation of plant and equipment

The Activity will require mobilisation of the following plant and equipment:

For the flowline/sales gas pipeline inspections - trailer mounted hydro-vac, <5 tonne excavator, hand tools, inspection and testing equipment.

For the upgrade of cathodic protection system - boring rig, diesel generator, <5 tonne excavator or “ditch witch”.

Laydown of plant and equipment will be located within a previously cleared and maintained area within the Gas Production Plant (clearing permit CPS4607). No temporary site buildings or facilities are required to support the Activity.

4.2 Flowline and sales gas pipeline inspections

The objective of the flowline (x3 locations) and pipeline (x2 locations) direct inspections is to complete an external visual inspection of the protective coating (and if necessary rectification) at anomalous locations identified during the September 2015 direct current voltage gradient (DCVG) survey.

To undertake this work, it will be necessary to:

1. Locate and isolate (if appropriate) any services that could be accidently exposed or damaged during excavation. The flowline and sales gas pipeline will remain in service during the Activity.

2. Positively identify the location of the flowline and sales gas pipeline by pot-holing using hydro-vac excavation method or hand digging in accordance with Origin’s procedure AUS-1000-ENG-PRO-9111421. During this process high pressure water may be used to excavate pot holes/trenches. All material excavated using the hydro-vac will be stored within the hydro-vac unit and will be used





during backfilling. The water used during the process will be sourced either from the existing licensed groundwater bores (GWL155141(5)) at the Gas Production Plant or an appropriately licensed facility offsite. Approximately 3 kL of water will be required.

3. Mark out the flowline and sales gas pipeline right of way extent and area for excavation to ensure works are limited to as small as area as possible and do not encroach outside of existing approved cleared areas (clearing permit CPS4607 and CPS6643). No new clearing will be necessary as part of the Activity.

4. Excavate three, one metre long (along the flowline) and two, one metre long (along the sales gas pipeline) inspection pits that provide 360

o visual access. The sales gas pipeline inspection pits will

be located approximately 760 m and 1491 m east of the Gas Production Plant boundary and the flowline inspection pits will be located directly south of the existing operations accommodation camp. Initially, the excavation will be undertaken using a <5 tonne excavator. Once the excavation is within 1 m of the flowline/pipeline, the remaining excavation will be completed using a non mechanical method such as hand digging or hyrdo-vac excavation. The excavations are expected to be a maximum of 1.5 m deep at each location. (refer Figure 2 for indicative flowline excavation locations and Figure 3 for indicative sales gas pipeline excavation locations).

5. Stockpile excavated material within the right of way easement at a height not greater than 1.5 m. Temporary stabilisation measures such as wetting down to prevent dust generation and erection of silt fencing or stormwater runoff diversion to prevent washing away during wet weather will be implemented as appropriate.

6. Inspect and record the condition of the flowline/pipeline coating both visually (evidenced by photographs) and using a holiday detector in accordance with Origin’s procedure AUS-1000-ENG-PRO-11532223.

7. Repair any identified coating defects identified using STOPAQ® system in accordance with Origin’s procedure AUS-1000-E55-PLN-9094242.

8. Verify coating repairs using a holiday detector in accordance with Origin’s procedure Q-1000-ENG-PRO-8057406.

9. Securely fence and implement a daily maintenance and inspection program for any inspection pits that need to remain open overnight. Daily maintenance and inspection checks will include confirming that no trapped fauna and the excavations remain stable and safe prior to re-entry. Any rainwater that enters the inspection pit will be pumped out to grade. It is likely that inspection pits could remain open for up to 2 nights.

10. Backfill inspection pits with soil stockpiled during excavation, taking care to ensure the soil is free from rocks that could damage the pipe. It is unlikely that any new material will be brought to site. However, should additional backfilling material be required, it will be sourced locally, from an appropriately licensed quarry. Backfilling will be undertaken in accordance with Origin’s procedure AUS-1000-ENG-PRO-9111421. Compaction of backfill will be undertaken using static methods (such as light hand operated rollers) and not vibrating /dynamic equipment to prevent damage to the flowline/pipeline.

In addition to the external visual and holiday testing detailed for the flowline and pipeline, the flowline will also be inspected internally using an ultrasonic testing (UT) based non intrusive scanning technology. Repair of any internal defects identified during the ultrasonic corrosion mapping of the flowline and are not included in the scope of this Activity. Should work be required to rectify internal defects to the flowline, a new bridging document will be submitted to DMP for approval.

4.3 Cathodic protection system upgrade

It has been identified that the existing cathodic protection system at the Facility requires upgrade to optimise the installation and meet the required output current needed to maintain adequate protection potentials. The upgrade will involve:

1. Mobilising plant and equipment (refer section 4.1) required to undertake the upgrade works.

2. Boring (at three locations) 6 inch diameter, 25-28 m deep holes to allow installation of new deep well anode groundbeds (consisting of anodes, vent pipes and inspection pit).

3. Installing new transformer rectifier unit (TR unit) near the sales gas pipeline pig launcher facility within the Gas Production Plant’s fenced boundary.

4. Excavating six new connection locations along the flowline/sales gas pipeline using non-mechanical excavation method. The excavations will be 1 m wide, 1 m long and 1.5 m deep.





5. Excavating 0.8 m deep, 300 mm wide trenches for placement of connecting cables. Excavation will be undertaken using a <5 tonne excavator or “ditch witch”.

6. Installing the connecting cables from the three new anodes to the six new connection locations along the pipeline / flowline . The connections will be made using pin brazing technique.

7. Excavated material, backfilling and inspection and maintenance of all open excavations left overnight will be managed in the same manner as detailed in section 4.2 for the flowline/sales gas pipeline inspection pits.

Appendix C shows the indicative locations of the three anodes (GB1, GB2 and GB3) and the transformer rectifier unit (TR unit). The exact location of the anodes, connection locations and connecting cable trenches is subject to on site confirmation to be undertaken at the time of the site installation and may vary slightly depending on the ground conditions.

4.4 Waste

Waste generated during the Activity will be managed as described in section 3.5, table 3.3 of the EP.

Some additional wastes not addressed in the EP that will be generated during the Activity include general waste associated with pipeline coating off cuts and hydro-vac excavated material. For completeness, Table 3.3 from the EP, with the additional wastes likely to be generated during the Activity is provided below.

Waste Generated Storage Conditions Disposal Method

Used oil The Activity will not generate any used oil. Therefore this is not part of this Bridging Document scope.

Produced formation water

The Activity will not generate any produced formation water. Therefore this is not part of this Bridging Document scope.

Permeate gas No storage required.

Excess gas (i.e. that which is not used to fuel gas compressors or generator) to be flared in vertical flare.

General waste (from control room, waste paper, food scraps etc)

Dedicated sealed bins located within the site office and accommodation camp. Separate bins provided for recyclable materials.

Collected by and disposed of by an appropriately licensed contractor. Volumes tracked by waste contractor collection records and invoices.

Greywater (includes sewage from site office and camp accommodation)

Onsite septic treatment system that discharges to leach drains located near workshop.

Onsite septic treatment system that discharges to leach drains located near workshop.

Skimmed product from evaporation pond and interceptor pits

The Activity will not generate any produced formation water. Therefore this is not part of this Bridging Document scope.

General waste from coating repairs

Tape and wrap off cuts from coating repair and packaging stored within the dedicated lay down area within the Gas Production Plant.


Pipeline inspection and cathodic protection system upgrade - general waste

Pallets, packaging, old/replaced plant and equipment, stored in dedicated lay down area within the Gas Production Plant.


Hydrostatic test water The Activity will not require hydrostatic testing. Therefore this is not part of this Bridging Document scope.





4.5 Hazardous materials / chemicals

No new or increased chemical or hazardous material storage (other than those already detailed in section 3.4, table 3.2 of the EP) will be stored at the Facility.

Refuelling of all plant and equipment will be undertaken at the Gas production plant utilising the existing facilities. Refuelling will not be undertaken along the right of way.

Table 3-2 of the EP has been produced below and updated to include any hazardous substances, chemicals and dangerous goods required during the Activity.

Hazardous Substance / Chemical

Description and Use Storage Quantity and Location

Methanol Methanol will not be used or stored directly by the Activity.

Lube oil and hydraulic fluid

Combustible liquid. General plant and equipment maintenance.

Stored in three 1000 L IBCs, 200 L drums and 20 L pails within the chemical storage area.

Diesel Combustible liquid. Fuel for backup generator and other plant/equipment.

4,500 L day-tank adjacent to the generators.

During maintenance campaigns, plant and equipment brought to site may contain self bunded diesel storages for power generation e.g. trailer mounted nitrogen generator, truck mounted boring unit. Typically, temporary diesel power generation tanks are self bunded.

Condensate Condensate will not be generated, stored or transported that is directly linked with the Activity.

Unleaded petrol Flammable liquid. Used for primarily for site vehicles, plant and equipment.

Maximum 200 L storage in vendor supplied metal drums within the chemical storage area.

Compressed gases

Used during routine and non-routine maintenance activities such as purging and welding.

During normal operation and maintenance up to six manpacks; Acetylene – Six G size cylinder. Oxygen – Six G size cylinders. Stored in designated area adjacent to the Workshop.

During maintenance campaigns a dedicated nitrogen generator may be mobilised to site to avoid large cylinder storages.

Activated carbon Activated carbon will not be generated, stored or transported that is directly linked with the Activity.

Corrosion inhibitor

Corrosion inhibitor will not be generated, stored or transported that is directly linked with the Activity.

Puraspec (Zinc Oxide Desiccant)

Puraspec will not be generated, stored or transported that is directly linked with the Activity.

H2S - Hydrogen Sulphide

Hydrogen sulphide will not be generated, stored or transported that is directly linked with the Activity.

Liquefied Petroleum Gas (LPG)

LPG will not be generated, stored or transported that is directly linked with the Activity.

Grease For use in equipment operation and maintenance.

300 L stored in the chemical storage area.

Monoethylene MEG will not be generated, stored or transported that is directly linked with the





Hazardous Substance / Chemical

Description and Use Storage Quantity and Location

glycol (MEG) Activity.

Biocide Biocide will not be generated, stored or transported that is directly linked with the Activity.

Engine coolant Engine coolant will not be generated, stored or transported that is directly linked with the Activity.

Radiator flush Radiator flush will not be generated, stored or transported that is directly linked with the Activity.

Foam concentrate

Foam used for fire fighting. 20 L stored in the fire fighting trailer.

Roundup Round up will not be stored or transported that is directly linked with the Activity.

Solvents and paints

Fabric maintenance, repair of/coating of pipe, plant and equipment

Up to 4 x 20 L containers stored in the chemical storage area.

4.6 Staff, accommodation and facilities

The duration for the proposed activities is expected to be 20 – 40 days (inclusive) distributed throughout November and December 2016. Work will be undertaken during daylight hours. Up to 6 people will be on site for this activity (in addition to the normal operational workforce).

The additional staff / contractors will be accommodated either in Dongara township or the Beharra Springs existing operations camp.

Given the short duration of works and limited people involved, it will not be necessary to provide temporary site offices/kitchens or ablution facilities. The existing facilities are suitably sized to accommodate the additional staff/contractor required to undertake the Activity.

5. Location of the activity

The Facility is situated in the Shire of Irwin, in the northern Perth Basin, approximately 25 kilometres (km) south east of Dongara and 350 km north of Perth. The Facility is located on unallocated crown land, being Lot 12453 on Parcel P221090 within Production Licence L11. Access to the Facility is via a 10 km long access road, accessed from Mt Adams Road and the Brand Highway. Figure 1 shows the location of the Facility. The Activity primarily relates to the sales gas pipeline and low pressure flowline. The location of the proposed inspection excavations and anode boreholes are indicated on Figure 2, Figure 3 and Appendix C.





Figure 1 : Beharra Springs Gas Facility Locality Plan





Figure 2 : Approximate location of 3 excavation locations for the flowline inspection

Figure 3 : Approximate location of 2 excavation locations for the sales gas pipeline inspection

6. Timing of the activity

It is proposed to commence the activity on the 1 November 2016, with all site works (including site reinstatement and demobilisation) being completed by 31 December 016.





7. Existing environment

A detailed description of the existing environment is provided in section 4 of the EP.

8. Risk assessment

A review of the current environmental risk assessment (dated 13 June 2016) has been undertaken. The review found that of the 30 existing environmental risks, 16 are applicable to the Activity. These include:

Risk ID ENV02 Loss of containment (LOC) of hydrocarbon from production flowline

Risk ID ENV06 Loss of containment (LOC) of hydrocarbon from sales gas pipeline

Risk ID ENV09 Loss of containment (LOC) of Hazardous Materials / Waste

Risk ID ENV10 Loss of power to the plant

Risk ID ENV12 Loss of containment as a result of accident involving land transport / mobile plant and equipment

Risk ID ENV16 Loss of containment from flexible hoses

Risk ID ENV 17 Site activities initiate a fire that escalates off site (beyond plant boundary, right of way or well lease) or results in a bushfire

Risk ID ENV18 Inappropriate clearing of vegetation

Risk ID ENV20 Site activities will cause disturbance to site of cultural heritage

Risk ID ENV22 Site activities will cause the introduction or spread of weeds or pathogens

Risk ID ENV 24 Site activities will cause amenity (noise, dust, light, odour emissions) impacts

Risk ID Env25 Site activities will result in groundwater extraction that exceeds aquifer recharge

Risk ID ENV 26 Site activities will result in the loss of containment of hydrocarbons, fuels, chemicals and hazardous materials

Risk ID ENV27 Inappropriate management of sewage and domestic waste

Risk ID ENV 28 Site activities will result in adverse impact to existing suitability of soils/land use

Risk ID ENV30 Site activities cause fauna and/or stock injury or death

A copy of the applicable environmental risks (extracted from the Facility’s current environmental risk register) is provided in Appendix B.

No new / additional risks were identified for the Activity.

The risk assessment and review was undertaken in accordance with the methodology provided in section 5 of the EP.


Released on 07/10/2016 – Revision 0 - Status Final issued for DMP approval Document Custodian is IG –Operations-Conv-HSE-Environment



9. Other relevant documents

This document should be read in conjunction with the EP. Unless otherwise stated in this document the management measures and commitments made in the EP apply to the Activity. Other relevant documents relevant to the management of the Activity include (but are not limited to):

Emergency Response Plan – Beharra Springs & Jingemia (CDN/ID 3677589 formerly OEUP-W4100-PLN-SAF-002)

Beharra Springs Gas Facility Safety Case (WAA-4100-SAF-PLN-00003)

Environmental licence (8385/2009)

Groundwater licence (GWL155141(5))

Clearing permit (CPS4607 and CPS6643)

10. References

Department of Mines and Petroleum (DMP 2012). Guidelines for the Preparation and Submission of an Environment Plan, accessed on 13 May 2016 at http://www.dmp.wa.gov.au/Documents/Environment/ENV-PEB-177.pdf

Origin Energy Resources Limited (Origin 2015). Environmental Plan – Beharra Springs Gas Facility (OEUP-W4100-PLN-ENV-003, Revision 3.3)

Origin Energy Resources Limited (Origin 2016a). Beharra Springs Gas Facility Safety Case (WAA-

4100-SAF-PLN-00003)

Origin Energy Resources Limited (Origin 2016b). Emergency Response Plan – Beharra Springs & Jingemia (CDN/ID 3677589 formerly OEUP-W4100-PLN-SAF-002)

Origin Energy Resources Limited (Origin 2016c). Right of Way Maintenance Procedure (AUS-1000-

ENG-PRO-9111421)

Origin Energy Resources Limited (Origin 2016d). Pipeline Defect Assessment and Repair Plan (AUS-1000-E55-PLN-9094242)

Origin Energy Resources Limited (Origin 2016e). Testing Coating on Steel Pipelines to Detect Holidays

(QLD-1000-EMG-PRO-8057406)

Origin Energy Resources Limited (Origin 2016f). Pipeline Direct Assessment Procedure (AUS-1000-ENG-PRO-11532223)

11. Document information and history

DOCUMENT CUSTODIAN GROUP

Title Name/s

IG – Operations-Conv-HSE-Environment S.Cornish

DOCUMENT AUTHOR

Position Name

Senior Environmental Consultant K.Presley

STAKEHOLDERS AND OTHER CONTRIBUTORS

Position Name

Pipeline Integrity Engineer S.Maloney

CONTROLLED COPY DISTRIBUTION

No. Name and Position Organisation

1 Scott Cornish Origin Energy

DOCUMENT HISTORY

http://www.dmp.wa.gov.au/Documents/Environment/ENV-PEB-177.pdf





Rev Date Changes made in document Reviewer/s Consolidator Approver

0 7/10/2016 Final – issued to DMP for approval

K.Hunt / S.Maloney

K.Presley S.Cornish

11.1 Controlled copy distribution

Controlled Copies of this document shall be distributed to the persons/areas listed above. The HSE Manager – Upstream Operations shall issue revised copies to all, as they are authorised. The old copies shall be returned to HSE Manager – Conventional Operations and destroyed.





Appendix A Cross Reference to EP

EP Section Relevant section of the Bridging Document

Section 1 Introduction No change with exception of Activity Scope, refer to section 2 of this Bridging Document.

Section 2 Legislation and Other Requirements No change. All activities will continue to be undertaken in accordance with applicable legislative and regulatory authority approval requirements.

Section 3 Description of the Activity No change except where noted in section 4 of this Bridging Document.

Section 4 Existing Environment No change. Refer to section 4 of the EP for Description of the Environment.

Section 5 Risk Assessment The existing Facility environmental risk register has been reviewed. Where appropriate existing risks and controls identified in the risk register have been extracted and included in Section 8 of this Bridging document. The review and update of the risk assessment was completed in accordance with methodology provided in section 5 of the EP.

Section 6 Performance Objectives, Standards and Criteria

No change. Section 6 of the EP will continue to apply to the Activity.

Section 7 Implementation Strategy No change. Section 7 of the EP will be applied to the Activity.





Appendix B Beharra Springs Gas Facility Risk Register

Org

anisa

tion U

nit

Resp

onsib

le

Risk

Registry

Risk

ID

Risk

Type

Prim

ary

Conse

quence

Cate

gory

Risk Title Risk Causes Risk Owners Risk Consequence Assumption Made

Enviro

nm

enta

l

Existing Controls

Overa

ll Contro

l

Effe

ctiv

eness

Conse

quence

Lik

elih

ood

Overa

ll Level o

f Risk

Tre

at o

r Accept R

isk

Accepta

nce B

y

Risk Treatment Options Risk Treatment Plan Actions

Overa

ll Targ

et L

evel o

f

Risk

Last R

evie

w D

ate

Date

to b

e R

evie

wed

Depth of burial

Pipeline design - wall thickness, corrosion allowance, material of construction

Pipeline design - designed to be pigged

Wrapped pipeline (painted)

Pipeline markers

Cathodic Protection

Ultra-sonic thickness testing

Annual coating surveys

Routine corrosion checks

Underground service drawings

Pipeline locator

Easement checks and maintenance

Pressure safety valves (PSVs)

Low pressure trip closing plant outlet

Maintenance Management System (eAMS)

AUS-1000-OPS-PRO-00001 – Permit To Work – Conventional Operations (EA/WA)

OEUP-INT1000-PRO-SAF-006 – Land Transport Procedure

OEUP-1000-PRO-SAF-182 - Lifting and Load Safety Operations - AUS

OEUP-INT1000-PRO-BUS-006 - Management of Change (MOC) Procedure

WAA-4100-SAF-PLN-00002 – Emergency Response Plan – Beharra Springs and

Jingemia

Fire protection system (hose reels, extinguishers)

Emergency Shutdown

Pipeline designed, maintained and operated in accordance with AS2885.

Beharra Springs Pipeline Pigging SOP (OEUP-4100-SOP-OPS-057)


Trained and competent staff involved in lifting operations (drivers, riggers,

doggers)

Lifting equipment certified by 3rd party contractor

Lifting equipment register (LER)

Lifesaving Rules #10 Suspended Loads

AUS-1000-SAF-PRO-00015 - Working at Heights Procedure.

Exclusion zones, barricading etc

WAA-4100-OPS-GDL-00001 - SIMOPS Matrix

Designated Hazardous Materials storage onsite

Bunded waste store

INT-1000-SAF-PRO-00010 - Hazardous Materials Procedure - Approval and Control

procedure

Segregation

Chemwatch access - SDS, Manifest, DG Labels.

Hazardous Materials Register

WAA-4100-SAF-REG-00001- Dangerous Goods Manifest

IBCS, drums etc available and used onsite for storage.

PPE for any potential exposures

Licensed Manitou/forklift operators

Diesel transfer underground piping (steel wrapped pipe)

Diesel transfer to generator by steel wrapped pipe

Diesel tank is bunded

Operator surveillance of sight glass LI-4100-0430

Operator checks

Bunding

Emergency Spill Kits

Corrosion inhibitors in flowlines

Cathodic protection

Competency trained operators (first aid, fire trained)

Transport companies are appropriately licensed and competent

Integrity checks

Inspection Checklists

Load in/Load out Procedure

Environmental Licence requirements

SOP procedure for management of drilling fluids and sumps

13/12/2016

Suspended flowlines are

purged and inerted with low

pressure nitrogen.

Therefore, no environmental

risks associated with LOC

event.

Escalation of LOC event

could occur if ignition source

available. Risk of Bushfire

assessed separately.

Permeable soil-landscape

system tends to allow

infiltration of LOC events to

shallow groundwater rather

than as runoff to surface

waters. (Section 4 of

Beharra Springs

Environmental Plan OEUP-

4100-PLN-ENV-003).

All Beharra flow / pipelines

easements cleared in

October 2015.

3 - S

erio

us

Substa

ntia

lly E

ffectiv

e - 7

5%

Loss of containment (LOC) of

hydrocarbon from production

flowline

EPO: No loss of containment of

hydrocarbons, fuels, chemicals

and hazardous materials

Excavation

Corrosion

Erosion

Loss of cathodic protection

Exceeding design conditions (e.g.

overpressure)

Vibration

Utilisation of out of specification

material

Inadequate plant monitoring

Maintenance system failure

Natural disaster (flood, fire,

earthquake)

Hydrates on Redback South #1

Low temperature embrittlement

across choke valve

Operator error

Subsidence

Rooks, Gary Release of hydrocarbon negatively

impacts local air quality leading to

increased greenhouse gas emissions.

Release of hydrocarbon negatively

impacts soil quality leading to

localised loss of vegetation and

reducing its existing suitability for

land use.


impacts groundwater quality


use.


impacts local amenity.


impacts fauna through loss of habitat

and loss of food sources.

Accept

Mediu

m

13/06/2016

3 - S

erio

us

2 - H

ighly

Unlik

ely

Mediu

m

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env02

Opera

tional

Enviro

nm

ent

INT-1000-ENG-PLN-00003 - Integrity Management Plan - Piping Systems (applicable

to flowlines and production plant piping)

WAA-4100-ENG-PLN-00001 - Integrity Management System - Beharra Springs

Pipeline design - wall thickness, corrosion allowance, material of construction,

depth of burial

Well Head Automated Shut Off Valves

Pipeline markers

Cathodic protection

Corrosion inhibitor injection at the wellhead

Wrapped pipe (painted)

Preventative Maintenance including: ongoing ultra-sonic thickness testing; annual

coating surveys; routine corrosion checks

Underground service drawings

Pipeline locator

Easement checks and maintenance

Pressure safety valve (PSVs)

Pressure control with alarm

Hydraulically actuated pressure trip

Methanol injection

Hydrate temperature alarm with trip function (closes choke valve)

Field and Well Operation SOP (WAA-4100-OPS-SOP-00029)

2 out of 3 voting low temperature trip - closes the SDV



Jingemia

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env06

Opera

tional

Enviro

nm

ent


hydrocarbon from the Sales

Gas Pipeline




Corrosion

Excavation

Maintenance system failure

Pigging - opening the pig receiver

under pressure


earthquake)

Impact (vehicle, mobile plant)

Crane or lifting equipment failure



increased greenhouse gas emissions.


impacts soil quality leading to

localised loss of vegetation and


land use.




use.


impacts local amenity.


impacts fauna through loss of

habitat, loss of food sources,

disturbance to normal feeding,

breeding cycles (noise).

Sales Gas Pipeline is

approximately 1.64km long

Operating Pressure 4500kpa

Buried for majority of route

(1.5km) with exception of

pig receiving and metering

station which is fenced

No public access. Pipeline

located within Redback to

BHS Plant right of way.

Loss of containment could

escalate to bushfire (see Risk

ID RSK-103522)

3 - S

erio

us

Substa

ntia

lly E

ffectiv

e - 7

5%

3 - S

erio

us

2 - H

ighly

Unlik

ely

Mediu

m

Tre

at

Development of Pipeline

Integrity Management Plan

for Beharra.

ACT-170511: Development of

Pipeline Integrity Management

Plan for Beharra. Sam Maloney.

30/09/2016.

Mediu

m

13/06/2016

13/12/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env09

Opera

tional

Enviro

nm

ent


Hazardous Materials / Waste





liquid and solid wastes

Inadequate waste storage, facilities

and containers.

Inadequate segregation of stored

materials

Inadequate labelling / damaged or

missing labels

Vehicle / mobile plant incident

during loading/unloading and

transportation

Equipment failure e.g. hose failure

during transfer

Operator error

Poor Housekeeping

Pipe rupture (diesel lines)

Hose rupture


earthquake)

Drilling sump overflow (workovers)

Well intervention / wirelining

activities.

Poor shutdown planning

Subsidence

Inadequate management of drilling

muds/cuttings

Inadequate management of pipeline

pigging activities

Rooks, Gary Release of hazardous

materials/waste negatively impacts

local air quality leading to increased

greenhouse gas emissions and

reduced local amenity.

Release of hazardous


soil quality leading to localised loss

of vegetation.



groundwater quality reducing its

existing suitability for use.

Products: Diesel (tank 4000

L), Nitrogen, Lube Oil, Pond

waste, corrosion inhibitor,

biocide, water treatment

chemicals.

LOC Condensate and

Methanol tanks assessed in

separate risk.

Drilling sump required for

workovers (<450 kL).

Tanker (20 kL) rollover and

release on/off site resulting

in recordable spill.

Release could escalate to

fire depending on proximity

to ignition source.

No Environmentally Sensitive

Areas (ESAs), Declared Rare

Flora (DFR) or EPBC species

known within L14 permit

area.

Refer section 4 of Beharra

Springs EP (OEUP-4100-PLN-

ENV-003).

3 - S

erio

us

Substa

ntia

lly E

ffectiv

e - 7

5%

3 - S

erio

us

2 - H

ighly

Unlik

ely

Mediu

m

Accep

t

Mediu

m

13/06/2016

13/12/2016

Page 1 of 4

Org

anisa

tion U

nit

Resp

onsib

le

Risk

Registry

Risk

ID

Risk

Type

Prim

ary

Conse

quence

Cate

gory


Enviro

nm

enta

l

Existing Controls

Overa

ll Contro

l

Effe

ctiv

eness

Conse

quence

Lik

elih

ood

Overa

ll Level o

f Risk

Tre

at o

r Accept R

isk

Accepta

nce B

y


Overa

ll Targ

et L

evel o

f

Risk

Last R

evie

w D

ate

Date

to b

e R

evie

wed

Groundwater monitoring program implemented in accordance with Environmental

Licence (L8385/2009/1) and EP (OEUP-4100-PLN-ENV-003).


Trained and competent staff involved in lifting operations (drivers, riggers,

doggers)

Lifting equipment certified by 3rd party contractor

Lifting equipment register (LER)

Lifesaving Rules #10 Suspended Loads

AUS-1000-SAF-PRO-00015 - Working at Heights Procedure.

Exclusion zones, barricading etc

WAA-4100-OPS-GDL-00001 - SIMOPS Matrix

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env10

Opera

tional

Enviro

nm

ent

Loss of power to the plant.

EPO: Minimise impacts to the

local airshed

EPO: Minimise amenity impacts

due to noise, dust, light and

odour emissions

No back up power available during

power plant maintenance and testing

activities

Excavation - Buried power line dug

up during shutdown activities

Electrical surge

Generator driver (e.g. gas /diesel

engine failure)

Generator trip

Emergency shutdown

Operator error

Rooks, Gary Excessive flaring / venting negatively


loss of amenity and increased

greenhouse gas emissions.

Loss of power assumed to be

short term 3 days (time

needed to mobilise

emergency power

generation)

1 - M

inor


AUS-1000-OPS-PRO-00002 - Equipment Isolation Procedure

Trained and competent staff - licensed electricians. HV qualified personnel only to

work on HV equipment.

Maintenance Management System (CMMS/eAMS)

Electrical equipment checks and certification (CMMS/eAMS)

Design and installation to standard / locked switch boards / IP2X (physical barrier

to live components)

100% redundancy

Back up generator

Tie in for hire generator

Load bank fitted

Exclusion zone for HV

Transformer maintenance (CMMS/eAMS)

Substa

ntia

lly E

ffectiv

e - 7

5%

1 - M

inor

4 - P

ossib

le

Mediu

m

Accept

Rooks, G

ary

Mediu

m

13/06/2016

13/12/2016

ORG-HSE-FRM-006 - Safety Specifications - Light and Heavy Vehicles


Regular inspections of all vehicles (weekly checklists completed).

Journey Management Plans (particularly during shutdown activities)

Driver training

Approved Origin car hire

Life Saving Rule #1 - Always wear a seatbelt when in moving vehicles or mobile

plant seatbelt and mobile phone

Life Saving Rule #2 - Never talk or text on a hand-held mobile phone when

operating a vehicle or mobile plant

In Vehicle Monitoring System (IVMS)

ORG-HSE-DVE-037 – Health and Fitness for Work

ORG-HSE-DVE-023 – Drug and Alcohol Management

ORG-HSE-POL-002 – Drug and Alcohol Policy

ORG-HSE-DVE-043 - Fatigue Risk Management

Licensed drivers

Road Rules compliance

Speed Limits on Site (variable as required)

Minimum vehicle specification has been clarified by ORA for dirt road driving.

Avoid driving at dusk and dawn where fauna movements greatest.



OEUP-1000-PRO-SAF-181 – Working at Heights (CA) - AUS

Licensed operators and/or trained and competent operators

Familiarisation checklists

VOC checklists

Traffic Management Plan in place for increased volumes of traffic (Shutdowns)

Exclusion zones.

Forklift reversing beepers and beacons

EWP users wear a harness

Escorting and Spotters

Maintenance management system (eAMS)

Pre-inspection of equipment

Life Saving Rule 5 - barricading and signage

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env16

Opera

tional

Enviro

nm

ent

Loss of containment from

flexible hoses.






Hose deterioration (age, UV,

vibration, corrosion, surface

abrasion, vehicle damage, chemical

attack)

Poor maintenance

Incorrect hose specifications

Incorrect use of hoses

Incorrect hose fittings and

connections

Overpressure

Thermal expansion

Low Temperature


impacts local soil quality.




use.

Air compressor hoses, load

in/load out hoses, pond

skimming hoses, fuel

transfer hoses.

Products: Methanol,

Condensate, Diesel,

Compressed Air, Nitrogen,

Lube Oil, Pond waste,

corrosion inhibitor, biocide,

water treatment chemicals.

2 - M

odera

te

Tagged and certified hoses (12 monthly for utility hoses).

Hose Register

Dedicated hose storage area.

Regular inspections and maintenance of hoses.

Inspections of hoses prior to use - checking fit for purpose.

Trained and competent operations personnel.

Hoses tested by 3rd party - Methanol and Condensate hoses sent to Perth for

testing.

Spare hoses retained onsite.

Spill kits

WAA-4100-OPS-SOP-0010-SELF AREA MANAGEMENT (SAM) Beharra Springs

Substa

ntia

lly E

ffectiv

e - 7

5%

2 - M

odera

te

2 - H

ighly

Unlik

ely

Low

Accept

Rooks, G

ary

Low

13/06/2016

13/12/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env17

Opera

tional

Enviro

nm

ent

Site activities initiate a fire

that escalates off site (beyond

plant boundary, right of way

or well lease) or results in a

bushfire

EPO: Avoid initiation of

bushfire due to site activities

Flaring at gas production plant

Testing of new production wells /

flowlines (ground flaring)

Process incident resulting in fire

Loss of well control

Hot work

Inadequate cigarette disposal

Vehicle use including trucks

(mufflers, exhausts, load in/out).

Mechanical/electrical or operational

failure of equipment on site

Accumulation of combustibles -

vegetation under/around process

skids and admin building

Arid environment

Windy conditions

Back burning / Burn offs

Vegetation maintenance restrictions

Rooks, Gary Degradation of local air quality

(smoke)

Disturbance to existing land use and

amenity (destruction of vegetation,

infrastructure)

Disturbance or destruction of sites of

cultural heritage significance

Disturbance of fauna through loss of

habitat and food source

Destruction of rare and endangered

flora and fauna, vegetation

communities and fauna habitat

Reliant on Dongara Fire

Brigade for Bushfire

response.

Fire contained within plant /

right of way or well lease

boundary considered to pose

no environmental impact.

Ecosystem has evolved to

recover from fire reducing

the duration of the impact.

3 - S

erio

us

Local emergency services (DFES and local brigade)

Vehicle equipped (4WD) to use secondary escape routes


WAA-4100-OPS-SOP-00010 - SELF AREA MANAGEMENT (SAM) Beharra Springs

WAA-4100-OPS-FRM-00002 - Self Area Management System – SAM - Checklist

Firebreak maintenance and flare kept clear of combustible material





Jingemia

Emergency Response Drill and Exercises

Test escape routes

Fire protection system (hose reels, extinguishers)

Emergency Shutdown

Certified earthing of plant equipment.

DFES/FESA back-burning in local area

Weed control around plant

Earthing

DFES/FESA approval for drilling ground pits for flaring

Licence for flares at gas production plant current

Designated smoking area with adequate disposal

Fire extinguishers

Routine training program implemented with local fire authority.

Substa

ntia

lly E

ffectiv

e - 7

5%

3 - S

erio

us

3 - U

nlik

ely

Mediu

m

Accept

Mediu

m

13/06/2016

13/12/2016

06/12/2016

1 - M

inor

4 - P

ossib

le

Mediu

m

Accept

Mediu

m

06/06/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env12

Opera

tional

Enviro

nm

ent

Release of hydrocarbon /hydraulic

oil or diesel negatively impacts soil

quality leading to localised loss of

vegetation .

Release of hydrocarbon /hydraulic

oil or diesel negatively impacts



Rooks, GaryFatigue

Stress

Poor road conditions (unsealed roads)

Poor vehicle conditions

Unfamiliar conditions and location

Speeding / reckless driving

Collision with an animal

Other road users / Third party

Adverse weather (rain etc)

Drug & Alcohol influence

Multiple work teams within small

area due to plant shutdown

campaign

Rollover

Hydraulic failure

Incorrect tyre pressures

Impact with process equipment and

pipework

Impact with vehicles

Reversing into plant or persons - poor

visibility

Congestion in the workshop.

Unstable ground

Incorrect use of equipment

Poorly maintained equipment

Incompetent operator

Loss of containment as a result

of accident involving land

transport / mobile plant and

equipment




Injury to / fatality of fauna

(refer to Risk ID30).

1 - M

inor

Substa

ntia

lly E

ffectiv

e - 7

5%

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env09

Opera

tional

Enviro

nm

ent


Hazardous Materials / Waste






Inadequate waste storage, facilities

and containers.

Inadequate segregation of stored

materials

Inadequate labelling / damaged or

missing labels

Vehicle / mobile plant incident

during loading/unloading and

transportation

Equipment failure e.g. hose failure

during transfer

Operator error

Poor Housekeeping

Pipe rupture (diesel lines)

Hose rupture


earthquake)

Drilling sump overflow (workovers)

Well intervention / wirelining

activities.

Poor shutdown planning

Subsidence

Inadequate management of drilling

muds/cuttings

Inadequate management of pipeline

pigging activities

Rooks, Gary Release of hazardous


local air quality leading to increased

greenhouse gas emissions and

reduced local amenity.



soil quality leading to localised loss

of vegetation.





Products: Diesel (tank 4000

L), Nitrogen, Lube Oil, Pond

waste, corrosion inhibitor,

biocide, water treatment

chemicals.

LOC Condensate and

Methanol tanks assessed in

separate risk.

Drilling sump required for

workovers (<450 kL).

Tanker (20 kL) rollover and

release on/off site resulting

in recordable spill.

Release could escalate to

fire depending on proximity

to ignition source.

No Environmentally Sensitive

Areas (ESAs), Declared Rare

Flora (DFR) or EPBC species

known within L14 permit

area.

Refer section 4 of Beharra

Springs EP (OEUP-4100-PLN-

ENV-003).

3 - S

erio

us

Substa

ntia

lly E

ffectiv

e - 7

5%

3 - S

erio

us

2 - H

ighly

Unlik

ely

Mediu

m

Accep

t

Mediu

m

13/06/2016

13/12/2016

Page 2 of 4

Org

anisa

tion U

nit

Resp

onsib

le

Risk

Registry

Risk

ID

Risk

Type

Prim

ary

Conse

quence

Cate

gory


Enviro

nm

enta

l

Existing Controls

Overa

ll Contro

l

Effe

ctiv

eness

Conse

quence

Lik

elih

ood

Overa

ll Level o

f Risk

Tre

at o

r Accept R

isk

Accepta

nce B

y


Overa

ll Targ

et L

evel o

f

Risk

Last R

evie

w D

ate

Date

to b

e R

evie

wed

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env18

Opera

tional

Enviro

nm

ent

Inappropriate clearing of

vegetation

EPO: Minimise impacts to rare

and endangered flora and

fauna, vegetation communities

and fauna habitat

Unauthorised clearing/vegetation

removal as a result of:

* Routine operations (maintenance of

firebreaks, operational areas, access

roads)

* Construction activities (clearing

new drilling pads, flowline right of

way, access roads)

* Major maintenance campaigns

(clearing for well workovers,

flowline repair)

Rooks, Gary Loss of vegetation, loss of declared

rare flora or priority species

Loss of fauna habitat

Soil erosion

Weed and pest invasion

Clearing permit CPS6643/1

allows area of up to 25 ha to

be maintained for

operations.

Any new clearing will

require a permit.

North Yardanogo 1 and South

Yardanogo 1 fully

rehabilitated.

3 - S

erio

us


INT-1000-SAF-PRO-00006 - HSE Induction Procedure

Pre-clearing flora surveys

Use of existing disturbed areas wherever practicable

Regulatory approval obtained for all new vegetation clearing or where outside the

permitted areas on CPS 6643/1 and CPS4607/1

Rehabilitation undertaken in accordance with clearing permit CPS6643/1 and

CPS4607/1

Vehicle hygiene inspection and hygiene declaration procedures will be used during

construction activities

Soil erosion control measures implemented and maintained until rehabilitation

established/completed.

3 - S

erio

us

4 - P

ossib

le

Mediu

m

Accept

Mediu

m

13/06/2016

13/12/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env20

Opera

tional

Enviro

nm

ent

Site activities will cause

disturbance to sites of cultural

heritage

EPO: Avoid, or if avoidance is

not practicable, minimise

disturbance to site of cultural

heritage

Vegetation clearing and earthworks

Transportation of staff and

equipment

Rooks, Gary Negative impact to local cultural

heritage values

Sites of cultural heritage

significance are likely to

exist near site.

No known aboriginal

archaeological sites

identified in surveys

undertaken within L11.

(Section 4 of Beharra Springs

EP)

3 - S

erio

us

Database Searches - A desktop survey completed prior to engagement.

Disturbance Procedure

Cultural Heritage Surveys

INT-1000-SAF-PRO-00006 - HSE Induction Procedure

Designated access roads for routine operations

Traffic management plans for well intervention/wireline and workover campaigns

Consultation with traditional owners undertaken prior to new construction

activities where appropriate.

Substa

ntia

lly E

ffectiv

e - 7

5%

3 - S

erio

us

1 - R

em

ote

Low

Accept

Rooks, G

ary

Low

13/06/2016

13/12/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env22

Opera

tional

Enviro

nm

ent

Site activities will cause the

introduction or spread of

weeds or pathogens

EPO: Minimise the potential for


weeds, pest animals or soil

based pathogens to ALARP

Routine operations (e.g. Maintenance

of firebreaks, operational areas,

access roads)


equipment

Import of gravel/soil for road

construction and maintenance, well

lease establishment

Rooks, Gary Reduction in local biodiversity values

Reduction in land use capability

Weeds can establish on

disturbed areas with minor

encroachment into

neighbouring bushland.

Weeds have previously been

introduced in gravel brought

to site.

Dieback disease risk minimal

due to calcareous nature of

soils.

2 - M

odera

te

Spraying Programs

Weed removal by operators

Well site inspections

INT-1000-SAF-PRO-00006- HSE Induction Procedure

Designated access roads for routine operations

Traffic management plans for well intervention/wireline and workover campaigns

Cleared / disturbed areas rehabilitated in accordance with clearing permit

CPS6643/1 and CPS4607/1

Training and competency

Weed hygiene procedures implemented during construction activities

Gravel sourced from local quarries that hold current extractive licence

Partia

lly E

ffectiv

e - 5

0%

2 - M

odera

te

4 - P

ossib

le

Mediu

m

Accept

Rooks, G

ary

Mediu

m

13/06/2016

13/12/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env24

Opera

tional

Enviro

nm

ent

Site activities will cause

amenity (noise, dust, light,

odour emissions) impacts

EPO: Minimise amenity impacts

due to noise, dust, light and

odour emissions

Flaring and other production

processes generating air, light and

noise emissions

Production well drilling, workovers

and well intervention activities

generating air, light, noise and dust

emissions

Shutdown campaigns generating air,

light, noise and dust emissions


equipment generating noise, dust

emissions

Odour from evaporation ponds

Rooks, Gary Reduced amenity for sensitive

receptors

Reduction in habitat value

Reduction in land use capability

Increase in insects

Facility is remote keeping

consequences contained

Closest residence

approximately 7km.

2 - M

odera

te

Remote location of facility minimises impact of noise, light and odour

Facility maintenance

Plant integrity monitoring

Environmental Licence requirements (L8385/2009/1) and EP (OEUP-4100-PLN-ENV-

003)

Plant Layout / Plant design

Physical noise barriers - Purpose built noise reduction on compressor shed walls

Sound reducing enclosures

Temporary lighting towers required for plant shutdown, well

intervention/workovers located to ensure directed to worksite with minimal offsite

impact

Where practical major maintenance campaigns limited to daylight hours

Substa

ntia

lly E

ffectiv

e - 7

5%

2 - M

odera

te

1 - R

em

ote

Low

Accept

Rooks, G

ary

Low

13/06/2016

13/12/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env25

Opera

tional

Enviro

nm

ent

Site activities will result in

groundwater extraction that

exceeds aquifer recharge

EPO: Maintain sustainable

groundwater extraction

Unauthorised extraction of

groundwater for routine and non-

routine activities such as potable

water, dust suppression, washdown,

drilling, well workovers and

intervention, rehabilitation,

decommissioning

Rooks, Gary Unsustainable drawdown of aquifer

Damage to vegetation due to

drawdown of shallow water

Shutdown campaigns and

normal operations require

minimal water supply.

2 - M

odera

te

Groundwater licence including annual volumetric

entitlement

Metering of water extraction

New bores for drilling activities require licensing

Substa

ntia

lly E

ffectiv

e

- 75%

2 - M

odera

te

1 - R

em

ote

Low

Accept

Rooks, G

ary

Low

13/06/2016

13/12/2016

Bunding


Corrosion inhibitors in flowlines

Competency trained operators (first aid, fire trained)


OEUP-W-4100-SOP-OPS-006 - SOP Condensate storage and load-out

OEUP-W4100-SOP-OPS-007 - BHS Methanol Tank Load-In Beharra Springs

WAA-4100-OPS-SOP-00010 - SELF AREA MANAGEMENT (SAM) Beharra Springs

WAA-4100-OPS-FRM-00002 - Self Area Management System – SAM - Checklist

INT-1000-ENG-PLN-00003 - Integrity Management Plan - Piping Systems

WAA-4100-ENG-PLN-00001 - Integrity Management System - Beharra Springs

OEUP-INT1000-PRO-SCM-003 - Integrated Gas Contract Management

Risk Assessment for scope of work

AUS-1000-SAF-PLN-00005 - Risk Management Plan

INT-1000-ENG-PLN-00023 - Well Integrity Management Plan (Con Ops)




Major maintenance campaings to mobilise appropriate bunded storage facilities

where onsite facilities are not adequate




Jingemia

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env27

Opera

tional

Enviro

nm

ent

Inappropriate management of

sewage and domestic waste



EPO: Minimise potential for


weeds, pest animals, or soil-

based pathogens

Generation and handling of liquid

and solid wastes

Inadequate waste segregation

Overloading of sewage treatment

system at gas plant/accommodation

building (operations)

Release of insufficiently treated

sewage at project/maintenance

sites.

Rooks, Gary Contamination of groundwater

Contamination of surface water

Contamination of soils

Disturbance or destruction of

biodiversity values

Increase in vermin / pests

3 - S

erio

us

Bunded waste store


Competency trained operators


Integrity checks

Inspection Checklists

Weekly collection of domestic waste undertaken and disposed of at local transfer

station by an appropriately licensed contractor.

Covered bins provided for the collection and storage of domestic wastes.

Plant and equipment for sewage treatment appropriately constructed, monitored

and maintained.

Sewage treatment leach drains fenced.

Sewage treatment facilities are designed, operated and maintained in accordance

with local and state laws

Licensed plumber engaged to undertake necessary maintenance / upgrade works

During major maintenance campaigns, consideration given to mobilising temporary

amenities

Substa

ntia

lly E

ffectiv

e - 7

5%

3 - S

erio

us

2 - H

ighly

Unlik

ely

Mediu

m

Accep

t

Ro

oks, G

ary

Mediu

m

13/06/2016

13/12/2016

13/12/2016

3 - S

erio

us

2 - H

ighly

Unlik

ely

Mediu

m

Tre

at

Rooks, G

ary

Development of oil spill

contingency plan in

accordance with RMA

regulations 2015.

1. Develop oil spill contingency

plan (K.Hunt 31/12/16)

2. Submit to DMP for approval

(K.Hunt 31/12/16)

3. Update ERP / EP as appropriate.

(K.Hunt 31/01/17)

Mediu

m

13/06/2016

Rooks, Gary Contamination of groundwater

Contamination of surface water

Contamination of soils

Disturbance or destruction of rare

and

endangered flora and fauna,

vegetation

communities and fauna habitat

Fauna mortality

Fire

Regulatory breach

Loss of hydrocarbons

associated with produced

water storage addressed in

Risk ID ENV015

3 - S

erio

us

Substa

ntia

lly E

ffectiv

e - 7

5%

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env26

Opera

tional

Enviro

nm

ent

Site activities will result in the

loss of containment of


and hazardous materials.


fuels, chemicals and hazardous

materials

Transport, storage and handling of

fuels, chemicals and hazardous

materials (refuelling, vehicle

accident, spills and leaks, blown

hydraulic

hoses, PSV lift)

Process incident

Production well drilling, workovers

and well intervention activities

Operation and refuelling of mobile

plant and equipment

Inclement weather

Inappropriate storage during major

maintenance campaigns.

Page 3 of 4

Org

anisa

tion U

nit

Resp

onsib

le

Risk

Registry

Risk

ID

Risk

Type

Prim

ary

Conse

quence

Cate

gory


Enviro

nm

enta

l

Existing Controls

Overa

ll Contro

l

Effe

ctiv

eness

Conse

quence

Lik

elih

ood

Overa

ll Level o

f Risk

Tre

at o

r Accept R

isk

Accepta

nce B

y


Overa

ll Targ

et L

evel o

f

Risk

Last R

evie

w D

ate

Date

to b

e R

evie

wed

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env28

Opera

tional

Enviro

nm

ent

Site activities will result in

adverse impact to existing

suitability of soils/land use

EPO: No adverse impacts to

existing users of soils/land

Subsidence

Inappropriate placement of

infrastructure

Inadequate rehabilitation

Construction of new gas wells,

access roads, flowlines

Inadequate post incident (LOC/spills

leaks) clean up

Inadequate decommissioning and

closure

Soil profile / contours not correctly

reinstated and compacted

Rooks, Gary Disturbance to landholders during

construction activities (new wells,

flowlines, access roads) and major

maintenance campaigns (e.g. Well

workover)

Soil erosion or subsidence

2 - M

odera

te

When required, adequate consultation with landholders will be undertaken prior to

commencement of construction activities

Rehabilitation to be completed as soon as practicable upon completion of works in

accordance with clearing permit

Rehabilitation works may include:

* ripping of heavily compacted soils

* installing and maintaining soil erosion control measures

Substa

ntia

lly E

ffectiv

e - 7

5%

2 - M

odera

te

2 - High

ly Un

likely

Low

Accep

t

Ro

oks, G

ary

Low

13/06/2016

13/12/2016

Pro

ductio

n

REG

-100390-B

eharra

Sprin

gs

Env30

Opera

tional

Enviro

nm

ent

Site activities cause fauna

and/or stock injury or death

EPO: Minimise impacts to rare

and endangered flora and

fauna, vegetation communities

and fauna habitat

Evaporation ponds/drill sumps not

fenced

Inadequate stakeholder / landholder

engagement

Gates left open / unlocked

Transportation of personnel, plant

and equipment during routine and

non routine activities

Pond fencing removed or inadequate

durnig pond repairs/instrusive soil

sampling

Rooks, Gary Fauna/stock death or injury due to:

* entrapment in pond/sump

* drinking unsuitable water quality

* collision with vehicle, mobile plant

and equipment

Impacts as a result of

bushfire addressed in

separate risk.

Review of OCIS records

shows incident involving

fauna occurs almost weekly

When required, adequate consultation with landholders will be undertaken prior to

commencement of construction activities

Evaporation ponds are fenced

Drilling sumps inspected regularly and reinstated as soon as practical upon

completion of work

OEUP-INT1000-PRO-SAF-006 – Land Transport Procedure requires:

* Journey Management Plans (particularly during shutdown activities)

* Driver training

* Avoid driving during dawn and dusk

Minimal and intermitted stored water in evaporation ponds therefore unlikely to

attract fauna

Life Saving Rule #2 - Never talk or text on a hand-held mobile phone when

operating a vehicle or mobile plant

ORG-HSE-DVE-037 – Health and Fitness for Work

ORG-HSE-DVE-023 – Drug and Alcohol Management

ORG-HSE-POL-002 – Drug and Alcohol Policy

ORG-HSE-DVE-043 - Fatigue Risk Management

Lighting towers are fitted with spikes to deter nesting birds

Substa

ntia

lly E

ffectiv

e - 7

5%

3 - S

erio

us

2 - High

ly Un

likely

Med

ium

Accep

t

Ro

oks, G

ary

Mediu

m

13/06/2016

13/12/2016

Page 4 of 4





Appendix C Indicative Layout of Cathodic Protection Upgrade



