burgess design group / jdsi consulting engineers

BURGESS DESIGN GROUP /

JDSI CONSULTING ENGINEERS

BROOKLANDS HENLEY BROOK DEVELOPMENT

APA GROUP

PARMELIA GAS PIPELINE

AS2885 SAFETY MANAGEMENT STUDY

WORKSHOP REPORT

Document No: R-BDG-1336

Rev Date Description Prepared Checked Approved Licensee

0 11/01/2019 Issued for Use

R Thornton M Woolridge R Thornton

Snr Pipeline Integrity Engineer

Graduate Mechanical Engineer


1 31/07/2019

Issued for Use – Updated as per results of Workshop Session #2

R Thornton B Watters R Thornton


Project Officer Snr Pipeline Integrity Engineer

1a 15/08/2019 Issued for Use – Updated as per Client comments

R Thornton B Watters R Thornton Snr Pipeline

Integrity Engineer

Project Officer Snr Pipeline Integrity Engineer

Version: 1, Version Date: 10/02/2021Document Set ID: 6210764Version: 2, Version Date: 13/08/2021Document Set ID: 6828932

kris-a

WM1 - Received Stamp Auto Date

kate-g

Planning Info - DSI/Approval Date/Disclaimer

JDSI | BURGESS DESIGN GROUP

BROOKLANDS DEVELOPMENT APA GROUP PGP AS2885 SMS

WORKSHOP REPORT

Rev 1a R-BDG-1336 i

Disclaimer

1. Whilst the information contained in this document is considered to be true and correct at the date of publication, changes in circumstances after the time of publication may impact on the accuracy of the information. The information may change without notice and Pipeline Integrity Pty Ltd is not in any way liable for the accuracy of any information printed and stored or in any way interpreted and used by a user.

2. Whilst the information contained in this document has been presented with all due care, Pipeline Integrity Pty Ltd does not warrant or represent that the information is free from errors or omission.




WORKSHOP REPORT

Rev 1a R-BDG-1336 ii

CONTENTS

1.0 TABLE OF ABBREVIATIONS AND TERMS ............................................................... 1

2.0 REFERENCES ........................................................................................................... 2

3.0 EXECUTIVE SUMMARY ............................................................................................ 3

4.0 INTRODUCTION ........................................................................................................ 4

5.0 PIPELINE OVERVIEW ............................................................................................... 4

6.0 PROPOSED DEVELOPMENT OVERVIEW ............................................................... 5

6.1 Construction Details .................................................................................................... 6

7.0 SCOPE OF WORKSHOP ........................................................................................... 7

7.1 Excluded from Scope................................................................................................... 7

8.0 METHODOLOGY ....................................................................................................... 8

8.1 Assumptions ................................................................................................................ 8

9.0 WORKSHOP SCHEDULE .......................................................................................... 8

10.0 ATTENDEES .............................................................................................................. 9

11.0 LOCATION CLASSIFICATION REVIEW .................................................................. 10

12.0 RESULTS ................................................................................................................. 11

12.1 Major Accident Events ............................................................................................. 11

12.2 Formal ALARP Assessment .................................................................................... 12

12.3 Actions .................................................................................................................... 13

13.0 CONCLUSION ......................................................................................................... 18

APPENDIX A: LOCATION CLASSIFICATION REVIEW RESULTS .................................... 19

APPENDIX B: AS2885 SAFETY MANAGEMENT STUDY RESULTS ................................. 20

APPENDIX C: SIGN ON SHEETS ...................................................................................... 21

APPENDIX D: REFERENCE DOCUMENTS ....................................................................... 22

APPENDIX E: RISK ASSESSMENT MATRIX ..................................................................... 23




WORKSHOP REPORT

Rev 1a R-BDG-1336 iii

LIST OF TABLES

Table 1: Abbreviations and Terms used in the Report ........................................................... 1

Table 2: Reference Documents ............................................................................................. 2

Table 3: Pipeline Overview.................................................................................................... 4

Table 4: Workshop Schedule ................................................................................................ 8

Table 5: Workshop #1 Attendees .......................................................................................... 9

Table 6: Workshop #2 Attendees .......................................................................................... 9

Table 7: Location Classification Review .............................................................................. 10

Table 8: MAE Summary ...................................................................................................... 11

Table 9: ALARP Summary .................................................................................................. 12

Table 10: Action Item Summary .......................................................................................... 17




WORKSHOP REPORT

Rev 1a R-BDG-1336 1

1.0 TABLE OF ABBREVIATIONS AND TERMS

Abbreviation /

Term

Description

ALARP Risk associated with a Threat is deemed ALARP if the threat is controlled,

or the residual risk is assessed to be low or negligible, or the residual risk is

assessed to be intermediate and is formally demonstrated to be ALARP.

(AS2885.0 Section 1.5.3)

BDG Burgess Design Group

JDSI JDSI Consulting Engineers

KP Kilometre Point

MAE A Major Accident Event (MAE) is defined as “an event connected with a

pipeline operation, including a natural event, having the potential to cause

multiple fatalities of persons engaged in the operation or other protected

persons”. (AS2885.3 Appendix E2)

MAOP Maximum Allowable Operating Pressure

Multiple More than two (with respect to MAE)

Non-Credible

Threat

Threat for which the likelihood of occurrence is so low that it does not exist

for any practical purpose at that location. (AS2885.0 Section 1.5.43)

PGP Parmelia Gas Pipeline

SMS Safety Management Study

TOR Terms of Reference

Table 1: Abbreviations and Terms used in the Report




WORKSHOP REPORT

Rev 1a R-BDG-1336 2

2.0 REFERENCES

Table 2: Reference Documents

Document Number Title

Standards

AS2885.0 - 2018 Pipelines Gas and Liquid Petroleum, Part 0 – General Requirements

AS2885.1 - 2018 Pipelines Gas and Liquid Petroleum, Part 1 – Design and Construction

AS2885.3 - 2012 Pipelines Gas and Liquid Petroleum, Part 3 – Operation & Maintenance

AS2885.6 - 2018 Pipelines Gas and Liquid Petroleum, Part 6 – Pipeline Safety Management

AS ISO 31000 Risk Management – Principles and Guidelines

Documents

PGP.2373-RP-HSE-0001 Parmelia Gas Pipeline System 2018 AS2885 SMS Workshop Report

R-BDG-1336, Rev 0 Brooklands Estate Initial Safety Management Study Workshop Report

TOR-JDSI-1469 Brooklands Estate Safety Management Study Update Terms of Reference

AS2885.6 - 2018 AS2885.6-2018 Risk Assessment Matrix

R-PI-453 SMS Guide Words

Drawings

PRO BRO 03-011-01

(Date: 26.06.19)

Structure Plan Map - Brooklands Estate

MIRHB-1-008A

(Rev A, Date: 6/6/2019)

Proposed Lot Typology Plan - Brooklands Estate

N/A Aerial Photograph - Brooklands Estate

N/A Locality Plan - Brooklands Estate

N/A Aerial Photograph with Pipeline Centreline - Brooklands Estate

101-D-L-39 PGP Alignment Sheet




WORKSHOP REPORT

Rev 1a R-BDG-1336 3

3.0 EXECUTIVE SUMMARY

The AS2885 Safety Management Study for the proposed development at Brooklands, Henley Brook has been successfully completed in accordance with the Terms of Reference Document No: TOR-JDSI-1469 and AS2885.

All identified threats to and from the Parmelia Gas Pipeline from the proposed development were assessed to ensure the on-going safe operation of the Pipeline.

24 Actions were raised in the initial workshop and 3 additional actions were raised in the second workshop. There were also 3 hazards identified which require a Formal ALARP Assessment.

Upon completion of these Actions and Formal ALARP Assessments all threats to and from the Pipeline from the proposed development are considered to be adequately controlled and managed as per the requirements of AS2885.

The AS2885 Safety Management Study Workshop was conducted at the APA Group Office, Level 5 Eastpoint Plaza Perth. The first workshop was held on the 6th December 2018 and a second workshop was held on the 25th July 2019. These workshops contained all parties required for the successful completion of the Safety Management Study.

As part of the Safety Management Study a Location Classification Review was also performed in accordance with AS2885.




WORKSHOP REPORT

Rev 1a R-BDG-1336 4

4.0 INTRODUCTION

Pipeline Integrity Pty Ltd was engaged by Burgess Design Group and JDSI to perform an AS2885 Safety Management Study and Location Classification Review Workshop for the Parmelia Gas Pipeline in the location of the proposed development at Brooklands Estate, Henley Brook.

This document forms the Workshop Report and outlines the Safety Management Study and Location Classification Review Workshop details, results and actions raised.

5.0 PIPELINE OVERVIEW

An overview of the Pipeline for the relevant section is outlined below.

Item Parmelia Pipeline

Pipeline License No 1, 2, 3

Location of Pipeline Affected by

Proposed Works

Gnangara Road – KP305.977 (Start)

Park Street – KP308.048 (Finish)

Product Natural Gas

Design Code AS 2885 (Originally built to ASME B31.8)

Diameter DN350

MAOP 7.48 MPa

Pipe Type API 5L X52

Wall Thickness Standard - 5.16 mm

Heavy Wall – 6.35mm

Coating Type Bonded HDPE Coating (Yellow Jacket)

Measurement Length (4.7kW/m2 Radiation Contour)

300 m

(180 m to 12.6 kW/m2)

(as per 2018 SMS Workshop Report Appendix 4 – Section ID 2)

Current Location Class (Prior to Development)

T1 (No Secondary Class)


Depth of Cover Generally 800mm to 1500mm

Above Ground Facilities Nil

DMIRS Licenced Asset Yes

Easement (50’)

Table 3: Pipeline Overview

For further details refer to the drawings and documentation listed in Section 2.0.




WORKSHOP REPORT

Rev 1a R-BDG-1336 5

6.0 PROPOSED DEVELOPMENT OVERVIEW

Burgess Design Group/JDSI are proposing to undertake a Residential Subdivision Property Development Project at Brooklands Estate in Henley Brook.

The Local Structure Plan area will encompass the following area / roads:

Gnangara Road

Pine Street

Henley Brook Ave

Park Street, and

Lord Street

The JDSI component of the development is as per the proposed Lot Topography Plan,

Document Number: MIRHB-1-008A.

The Proposed Works are within the vicinity of the Parmelia Gas Pipeline which is operated by APA Group.

The proposed development consists of the following:

Total Site Area is approximately 234 ha

Approximately 3500 dwellings with an average lot size of 350 to 375m2

Residential lots which include areas of: o R30 zoning o R40 zoning o R60 zoning

Primary Schools (two)

Possible Future Lifestyle Village

Public Open Space (approx. 15% of Gross Area, 13.09% creditable under planning calculations)

Foreshore Area

Water Corporation Facilities (three)

Roads and Installation of Services

Proposed Road Crossing the PGP at POS14 along with Buried Services in the Road Easement

Note: The above areas are approximated only and subject to Final Survey and Design.

The development is encumbered by an Easement for the Parmelia Gas Pipeline (PGP). This corridor extends in a North to South direction through the centre of the development area.

Details of the proposed development are as per the following documents which are included as part of the Terms of Reference attached in Appendix D.

Document No: Title

PRO BRO 03-011-01

(Date: 26.06.19)


MIRHB-1-008A

(Rev A, Date: 6/6/2019)






WORKSHOP REPORT

Rev 1a R-BDG-1336 6

6.1 Construction Details

Details of the proposed Construction Activities in the vicinity of the Parmelia Gas Pipeline are as outlined below:

• Surveying and Marking

• Establishment of Site Facilities (TBC)

• Earth Works

o Clear and Grade

o Clear and Removal of Large Trees

o Import and fill

o Compaction

• Construction activities for:

o Roadworks

o New Road crossing of the PGP at POS14

o Concrete footpaths

o Landscaping

o Hardscaping

o Fencing

o Light Poles

• Installation of Services (Trenching, Backfill, Compaction, Potential Micro tunnelling)

o Electrical/Power

o Communications

o Gas

o Water

o Drainage

o Sewer

o Irrigation for Landscaping

Note: The majority of the above activities will be performed around and on the Parmelia

Gas Pipeline Easement.




WORKSHOP REPORT

Rev 1a R-BDG-1336 7

7.0 SCOPE OF WORKSHOP

The Workshop Scope undertaken was to perform an AS2885 Safety Management Study (SMS) Workshop and document the process for the proposed development at Brooklands Estate in Henley Brook.

This assessment was required to take into account the relevant section of the following existing operating Pipeline:

Parmelia Gas Pipeline (Operated by APA Group) (KP305.977 308.048)

As part of the SMS Workshop assessment, the following is required:

1. Review of the Location Classification for the above Pipeline taking into account the Proposed Works

2. Safety Management Study for the above Pipeline for the section in which the pipeline measurement length encompasses the Proposed Works (Location Specific and Non-Location Specific Threats)

The Safety Management Study is required to assess:

1. Threats to the Pipeline from proposed Construction activities 2. Any new threats which may exist from the proposed works (during Operations) 3. If current controls to existing threats are sufficient taking into account the proposed

works and any Location Class changes which may arise (Loc Specific and Non-Loc Specific Threats)

The above is a License and AS2885 requirement for the Parmelia Gas Pipeline.

The purpose of the Safety Management Study it to ensure the continued safe operation of the pipeline and safety of those in the surrounding area from the pipeline.

An initial Safety Management Study was performed in December of 2018 for Burgess Design Group. However, since then a new road crossing of the PGP as well as minor changes to the Structure Plan have been proposed. As such, a second workshop was performed in order to update the Safety Management Study accordingly against the revised Structure Plan.

7.1 Excluded from Scope

The following items are excluded from the Scope:

Construction HAZID

Formal ALARP Assessment (Performed Post Workshop as Required)

Assessment of the any other gas pipelines




WORKSHOP REPORT

Rev 1a R-BDG-1336 8

8.0 METHODOLOGY

The Location Classification Review was performed by assessing each pipeline section and utilising local knowledge of relevant personnel within the workshop to establish the land use for each section. Location Class was assigned in accordance with AS2885.6.

The Safety Management Study Workshop was performed in accordance with AS2885 (Sections 0 / 1 / 3 / 6) and the process outlined in the Terms of Reference Document No: TOR-JDSI-1469. The Terms of Reference document is attached in Appendix D and should be referred to where further information is required.

Documentation utilised during the workshop included the reference documentation as listed in Section 2.0.

8.1 Assumptions

All information supplied is a true and accurate representation of the relevant pipeline details and proposed development works.

9.0 WORKSHOP SCHEDULE

The Safety Management Study was conducted in the APA Group Perth Office located at Eastpoint Plaza, Adelaide Tce Perth, WA per the details below.

Date Detail Start Finish

6th December 2018 SMS Workshop #1 9:00 am 2:00 pm

25th July 2019 SMS Workshop #2 9:00 am 12:00 pm

Table 4: Workshop Schedule




WORKSHOP REPORT

Rev 1a R-BDG-1336 9

10.0 ATTENDEES

The attendees for the two workshops are listed in the tables below.

Prior to commencement of the workshops, the group confirmed that all required parties were present to allow the Safety Management Study to be performed.

Name Initials Position Company

Developer’s Consultant – BDG

Mark Szabo MS Associate Director BDG

Mitchell Bisby MB Senior Designer BDG

Owner & Operator – APA

Gerry Connell GC Technical Officer APA Group

Adam Crichton AC Risk Engineer APA Group

Andre Schmitz AS Corridor Protection APA Group

Bill Ivory BI Corridor Protection Lead WA & NT APA Group

Facilitator - Pipeline Integrity

Rob Thornton RT Independent Facilitator & Scribe Pipeline Integrity

Table 5: Workshop #1 Attendees

Name Initials Position Company

Developer’s Consultant – JDSI

David Hellmuth DH Director JDSI Consulting Engineers



Adam Crichton AC Risk / Pipeline Engineer APA Group

Warren Guthrie WG Regional Manager – PGP South APA Group

Facilitator - Pipeline Integrity


Table 6: Workshop #2 Attendees

A copy of the Attendance Sign on Sheets are attached in Appendix C.




WORKSHOP REPORT

Rev 1a R-BDG-1336 10

11.0 LOCATION CLASSIFICATION REVIEW

A Location Classification Review was performed for the relevant section of the Parmelia Gas Pipeline as part of the SMS Workshop. The Location Classification Review was performed in accordance with AS2885.6 - 2018.

A copy of the Location Classification Review is attached in Appendix A.

The Results of the Location Classification Review are summarised below.

Section Pipeline Kilometre Post (kilometre)

Current Location

Classification

Revised Location

Classification

Start Finish Primary Secondary Primary Secondary

1 PGP Gnangara Rd

(KP - 305.977)

Park Street

(KP -

308.048)

T1

Residential -

Remains at

T1

Residential

-

Table 7: Location Classification Review




WORKSHOP REPORT


12.0 RESULTS

The results of the Safety Management Study Workshop were recorded using a spread sheet based logging tool and included assessment of the following:

Construction Activities and Threats to Pipeline

New Location Specific Threats (from Proposed Works during Operations)

Location Specific Threats (Existing which needs to be assessed based on a Location Class Change)

Non Location Specific Threats (During Operations which could result in a Failure Event. Assessed based on changes to Location Class which could potentially affect consequences and risk analysis)

A copy of the results is attached in Appendix B.

12.1 Major Accident Events

Major Accident Events (MAE) describes those hazards which could result in multiple fatalities. There were 3 Major Accident Events identified during the Safety Management Study and are summarised below.

Job

Step

ID

Loc.

Description

Kilometre

Point Threat Description

Additional Controls

/ Actions Risk Level


C - 11

Gnangara

Road to Park

Street

305.977 to

308.048 Open Trenching

Refer actions 16, 17,

18, 19, 20 in Table 9

Failure not

credible once

slab is installed

C - 12

Gnangara

Road to Park

Street

305.977 to

308.048

Micro-tunnelling of

service installation

under gas pipeline

(likely to be sewer or

storm water only)

Refer action 25 in

Table 9

Intermediate

(Catastrophic,

Hypothetical)

New & Existing Location Specific Threats (During Operations)

LS –

10

Gnangara

Road to Park

Street

305.977 to

308.048 Installation of Bores

Refer to action 23 in

Table 9

Intermediate

(Catastrophic,

Hypothetical)

Table 8: MAE Summary




WORKSHOP REPORT


12.2 Formal ALARP Assessment

Formal ALARP Assessments are required for the following threats:

Major Accident Events

Threats with Risk Levels of Intermediate or higher

Prior to additional controls being specified, Item ID C-11 (Open Trenching) was identified as a Major Accident Event with a Risk Level of Intermediate or Higher. With the additional controls that were specified, Failure was considered no longer possible for C-11, hence Formal ALARP Assessment is not required.

Three hazards were identified during the workshop which require a Formal ALARP Assessment, a summary is provided below.

Job

Step

ID

Loc.

Description

Kilometre

Point Threat Description

Additional Controls

/ Actions Risk Level


C – 8

Gnangara

Road to Park

Street

305.977 to

308.048

Auguring for Light Pole

Installation

Refer action 12 in

Table 9

Intermediate

(Major, Remote)

C - 12

Gnangara

Road to Park

Street

305.977 to

308.048

Micro-tunnelling of

service installation

under gas pipeline

(likely to be sewer or

storm water only)

Refer action 25 in

Table 9

Intermediate

(Catastrophic,

Hypothetical)

New & Existing Location Specific Threats (During Operations)

LS –

10

Gnangara

Road to Park

Street

305.977 to

308.048 Installation of Bores

Refer to action 23 in

Table 9

Intermediate

(Catastrophic,

Hypothetical)

Table 9: ALARP Summary




WORKSHOP REPORT


12.3 Actions

The Actions from the Safety Management Study and Location Classification Review Workshop were also recorded using a spread sheet based logging tool.

27 Actions were raised during the Safety Management Study and Location Classification Review Workshop. A summary is outlined in the table below.

Item

ID

Lo

cati

on

Pip

elin

e

Feature

Description

Threat

Description

Action / Control

Measure

Acti

on

ee

Date

Required


C-1

Gnangara

Road to

Park

Street

PGP General

Road Legal

Vehicles

crossing the

Gas Pipeline

1. Ensure designated

vehicle & equipment

crossing points are

installed across the gas

pipeline and build up

cover to 1200mm at this

location

MS

Prior to

Works

C-2

Gnangara

Road to

Park

Street

PGP General

Non - Road

Legal Vehicles /

Equipment

crossing the

Gas Pipeline

2. Details of all Non Road

Legal Vehicles and

equipment to cross the

gas pipeline easement

are to be submitted to

APA Group for

assessment prior to

commencing works

3. Refer to action 1 above

regarding crossing points

MS Prior to

Works

C-3

Gnangara

Road to

Park

Street

PGP

Installation of

Offices and Set

Up of Lay Down

Areas

Equipment /

Building loads

over the

Pipeline

4. No Equipment / Offices

or Laydown areas to be

established on the

Pipeline Easement

MS Duration

of Works

C-4

Gnangara

Road to

Park

Street

PGP Survey and

Marking

Installation of

Survey Pegs

(Including

Marking of

Pipeline

Easement)

5. Survey of the PGP

(incl. potholing) to be

performed by Approved

Contractor under APA

PTW System

6. The PGP corridor is be

surveyed and pegged out

with Hi Viz Rope Flagged

Fence prior to any site

MS

MS

Prior to

Works

Prior to

Works




WORKSHOP REPORT


Item

ID

Lo

cati

on

Pip

elin

e

Feature

Description

Threat

Description

Action / Control

Measure

Acti

on

ee

Date

Required

clearing / earthworks

commencing

7. All works on Pipeline

Easement to be under

APA PTW System and all

works adjacent to Pipeline

Easement to be under

Third Party Works

Authorisation

8. APA to confirm marker

sign spacing is in

accordance with required

Location Class

Requirements and rectify

as required

MS

GC

Duration

of Works

Prior to

Works

C-5

Gnangara

Road to

Park

Street

PGP

Clearing and

Grubbing (minor

vegetation,

bushes, trees)

Entangled

vegetation roots

around pipeline

9. Any trees to be

removed on Pipeline

Easement to be removed

under APA PTW

requirements

MS At time of

Works

C -6

Gnangara

Road to

Park

Street

PGP Earthworks

Excavation /

Removal of

Cover (Clear

and Grade, Strip

Top Soil,

Landscaping

Works,

Establishing Site

Levels)

10. Refer actions above

regarding Flagging of

Easement

C-7

Gnangara

Road to

Park

Street

PGP Earthworks

Auguring for

Bollard / Fence

Post Installation

11. Refer actions above

C-8

Gnangara

Road to

Park

Street

PGP Earthworks

Auguring for

Light Pole

Installation

12. Refer existing ALARP

Assessment and actions

above




WORKSHOP REPORT


Item

ID

Lo

cati

on

Pip

elin

e

Feature

Description

Threat

Description

Action / Control

Measure

Acti

on

ee

Date

Required

C - 10

Gnangara

Road to

Park

Street

PGP

Earthworks -

Compaction

Activities

(Development

and at Road

Crossings)

Compaction /

Vibrations from

Equipment

13. There must be no

vibrating compaction used

within 10 metres of the

Gas Pipeline and only

static rollers or light walk

behind plate compactors

(600mm x 600mm

maximum plate size) are

to be utilised within 10

metres either side of the

Gas Pipeline

14. BDG to provide

proposed vibratory

equipment for approval for

works within 10m of gas

pipeline

15. Refer additional

actions above

MS

MS

Duration

of Works

Prior to

Works

C - 11

Gnangara

Road to

Park

Street

PGP

Buried Service

Installation:

Lighting cables,

Power, Water,

Gas,

Communication,

Drainage,

Sewer, Irrigation

for Landscaping

Open Trenching

16. Excavator Size limited

to 10 Tonne and GP

Teeth Only

17. Refer to Actions

above regarding works on

Pipeline Easement

18. Install Concrete Slabs

under road and in road

reserve prior to additional

services going in.

19. APA to provide details

of slabbing requirements

20. Any major services

crossing pipeline including

Sewer, Water Mains etc

will require a slab over the

Pipeline

MS

MS

GC

MS

Duration

of Works

Prior to

Road Construction

Prior to

Works

Prior to

Road Construction




WORKSHOP REPORT


Item

ID

Lo

cati

on

Pip

elin

e

Feature

Description

Threat

Description

Action / Control

Measure

Acti

on

ee

Date

Required

C - 12

Gnangara

Road to

Park

Street

PGP

Service

Installation:

Lighting cables,

Power, Water,

Gas

Communication,

Drainage,

Sewer

Micro tunnelling

of service

installation

under gas

pipeline (likely to

be sewer or

storm water

only)

25. Refer to Actions

regarding works on

Pipeline Easement.

MS/

DH

Prior to

Works

C - 13

Gnangara

Road to

Park

Street

PGP

Construction

Activities for:

Roadworks,

Concrete

footpaths,

Landscaping,

Hardscaping

(Retaining

Walls, Fencing

etc)

No additional

threats

identified.

Threats from

these activities

covered under

threat

assessments

above (eg.

Excavation,

Compaction,

Vehicle Loads)

21. Excavation, Inspection

and Recoating of Pipeline

required at new road

crossing location

TBC Prior to

Road Construction

New & Existing Loc Specific Threats (During Operations)

LS - 6

Gnangara

Road to

Park

Street

PGP

Buried Services

(Existing or

New) at Road

Crossing

Excavation and

Maintenance of

services at

Road Crossings

22. Refer action above regarding requirement for slabs at road crossings

LS –

6A/B/C

Gnangara

Road to

Park

Street

PGP

New Buried

Services and

New Road

Crossing of

PGP - at POS14

connecting

Brooklands

Drive to Park St

Vehicle Loads,

Maintenance

Activities

including: road

widening,

grading, open

drain, clearing

and vibratory

compaction.

Excavation and

Maintenance

services at

Road Crossings

26. Install Slabs above gas pipeline at new

service crossing locations and new road crossing

location (under road and either side).

APA to provide details of required slab.

DH/

GC

Prior to

Works




WORKSHOP REPORT


Item

ID

Lo

cati

on

Pip

elin

e

Feature

Description

Threat

Description

Action / Control

Measure

Acti

on

ee

Date

Required

LS - 10

Gnangara

Road to

Park

Street

PGP Public Open

Space

Installation of

Bores

23. Consider improving

liaison and signage

27. 100m is the maximum

preferred sign spacing.

Anything beyond 100m to

be approved by APA

Group.

GC

MH

Prior to

Works

Prior to

Works

LS - 16

Gnangara

Road to

Park

Street

PGP

Electrical

Transformers

and Equipment

Refer to action

24. Details of Electrical

Equipment and

Transformers to be

submitted to APA for

assessment to confirm

compliance with AS4853

BDG /

APA

Prior to

Electrical

Equipment

Installation

Table 10: Action Item Summary

For further details of the actions raised, please refer to Appendix B.

The Actions were assigned only to persons in the Safety Management Study Workshop with a view that they could be re-assigned to a relevant team member following consultation with the person concerned.

An estimated target date has been assigned during the workshop. This may be updated following review and approval of the action plan developed.

The above will allow the Safety Management Study to be closed out and the actions to be performed as a separate item.




WORKSHOP REPORT


13.0 CONCLUSION

The AS2885 Safety Management Study and Location Classification Review Workshop for the Parmelia Gas Pipeline in the location of the proposed development at Brooklands Estate, Henley Brook has been successfully completed in accordance with the Terms of Reference Document No: TOR-JDSI-1469 and AS2885.

All identified threats to and from the Parmelia Gas Pipeline from the proposed development were assessed with 27 Actions raised to ensure the on-going safe operation of the Pipeline. There were also 3 hazards identified which require a Formal ALARP Assessment.

Upon completion of these actions and Formal ALARP Assessments, all threats to and from the Pipeline from the proposed development are considered to be adequately controlled and managed as per the requirements of the Terms of Reference and AS2885.




WORKSHOP REPORT


APPENDIX A: LOCATION CLASSIFICATION REVIEW RESULTS

Document No: LCR-BDG-1309, Rev B


AS2885 LOCATION CLASSIFICATION REVIEWDoc No: LCR-BDG-1309 Rev: B

Note: Changes made in Session #2 are in blue

MAOP

Measurement Length @ MAOP

(4.7kW/m2

Radiation Contour)

(See Note 2)

Development / Encroachment within Measurement Length

Location ClassChange

Start Finish MPa metre Primary Secondary Yes / No Yes / No Primary Secondary

1Parmelia

Gas Pipeline

Gnangara Rd(KP -

305.977)

Park Street (KP - 308.048)

101-D-L-39 7.48 300mT1

Residential -

YesBrooklands Estate, Henley Brook Residential Development(Refer Development Structure Plan for details)

Session #2Assessed updated Structure Plan which includes:- Possible Future Lifestyle Village- New Road Crossing of PGP and Buried Services Crossings of PGP at POS14 connecting Brooklands Drive to Park St- Change in location of Primary Schools (x2) (but outside PGP 4.7kW/m2 radiation contour)

No - -

DBP corridor discussed and CIC deemed not required as its in its

own Easement.

Lifestyle Village location acceptable subject to not including

a Aged Care Facility.

-

Note 2: Radiation Contour is as per Parmelia Gas Pipeline 2018 AS2885 SMS Workshop Report (Appendix 4 - Section ID 2)

Action

Note 1: Current Location Class for PGP is as per Parmelia Gas Pipeline 2018 AS2885 SMS Workshop Report (Appendix 5 - Section ID 10 - Ellenbrook South)

BROOKLANDS ESTATE, HENLEY BROOK DEVELOPMENT

SectionKilometre Post (kilometre)

Alignment Sheet

Drawing No:

Current Location Classification(See Note 1)

Revised Location Classification NotePipeline

1 of 1




WORKSHOP REPORT


APPENDIX B: AS2885 SAFETY MANAGEMENT STUDY RESULTS

Document No: RA-BDG-1310, Rev B


AS2885 SMS RISK ASSESSMENT

BROOKLANDS, HENLEY BROOK DEVELOPMENT

Doc. No: RA-BDG-1310, Rev B Note: Changes made in Session #2 are in blue

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Wall Thickness Marking 1. Ensure designated vehicle & equipment crossing points are installed across the gas pipeline and build up cover to 1200mm at this location

MS Prior to Works

Burial Liaison

Burial Marking 2. Details of all Non Road Legal Vehicles and equipment to cross the gas pipeline easement are to be submitted to APA Group for assessment prior to commencing works

MS Prior to Works

Liaison 3. Refer to action 1 above regarding crossing points

Wall Thickness Marking 4. No Equipment / Offices or Laydown areas to be established on the Pipeline Easement

MS Duration of Works

Burial Liaison

Wall Thickness Marking 5. Survey of the PGP (incl. pot-holing) to be performed by Approved Contractor under APA PTW System

MS Prior to Works

Burial DBYD 6. The PGP corridor is be surveyed and pegged out with Hi Viz Rope Flagged Fence prior to any site clearing / earthworks commencing

MS Prior to Works

Liaison 7. All works on Pipeline Easement to be under APA PTW System and all works adjacent to Pipeline Easement to be under Third Party Works Authorisation


8. APA to confirm marker sign spacing is in accordance with required Location Class Requirements and rectify as required

GC Prior to Works

Marking 9. Any trees to be removed on Pipeline Easement under APA PTW requirements

MS At time of Works

Liaison

APA PTW and Procedures

Marking 10. Refer actions above regarding Flagging of Easement

DBYDAPA PTW and ProceduresLiaison

Burial Marking 11. Refer actions above

Wall Thickness DBYDLiaison

Marking 12. Refer existing ALARP Assessment and actions above

DBYDLiaison

Wall Thickness LiaisonAPA Procedures

APA PTW & Procedures 13. There must be no vibrating compaction used within 10 metres of the Gas Pipeline and only static rollers or light walk behind plate compactors (600mm x 600mm maximum plate size) are to be utilised within 10 metres either side of the Gas Pipeline


Liaison 14. BDG to provide proposed vibratory equipment for approval for works within 10m of gas pipeline

MS Prior to Works

15. Refer additional actions above

Marking 16. Excavator Size limited to 10 Tonne and GP Teeth Only


DBYD 17. Refer to Actions above regarding works on Pipeline Easement

APA PTW and Procedures 18. Install Concrete Slabs under road and in road reserve prior to additional services going in.

MS Prior to Road Road Construction

Liaison 19. APA to provide details of slabbing requirements

GC Prior to Works

Pot Holing 20. Any major services crossing pipeline including Sewer, Water Mains etc. will require a slab over the Pipeline

MS During Construction Works

Marking 25. Refer to Actions above regarding works on Pipeline Easement

MS/DH Prior to Works

DBYD

APA PTW and Procedures

Liaison

Pot Holing

21. Excavation, Inspection and Recoating of Pipeline required at new road crossing location

TBC Prior to Road Construction

PGP 305.977 to 308.048

YesT1 YesM

ajor

Construction Activities for: - Roadworks - Concrete footpaths- Landscaping- Hardscaping (Retaining Walls, Fencing etc.)

No additional threats identified Threats from these activities covered under threat assessments above (e.g. Excavation, Compaction, Vehicle Loads)

Neg

ligib

le

Neg

ligib

le

Yes

Yes

305.977 to 308.048

C - 13

C - 12

C - 10 2 Phys / 2 Proc / 100m / No Rupture / 10 GJ/s

PGP

C - 11

Gnangara Road to Park Street

C - 14 Gnangara Road to Park Street

Yes305.977 to 308.048

PGPGnangara Road to Park Street

Micro tunnelling of service installation under gas pipeline (likely to be sewer or storm water only)

Yes

Threat Identification

Threat DescriptionThreat Credibility

Justification Location Description Pipeline

Additional Threat ControlRisk Analysis

Kilometre Point

Lo

cati

on

Cla

ssif

icat

ion

Feature Description

Location

Physical Controls (External Interference

protection if applicable)

Yes

Is Threat Credible?

Installation of Survey Pegs (Including Marking of Pipeline Easement)

Yes Yes 2 Phys / 2 Proc / 100m / No Rupture / 10 GJ/s

No

No Yes


PGP 305.977 to 308.048

Yes

No

No

Sev

ere

Sev

ere

Min

or

Consequence Severity

Failure Mode and Consequences (Refer

AS2885.6 Section 3.4 for guidance)

Rem

ote

N/A

Sev

ere

N/A

Sev

ere

Triv

ial

Min

or

Min

or

N/A

Min

or

Sev

ere

Inte

rmed

iate

Neg

ligib

le

Neg

ligib

le

Cat

astr

ophi

c

Is Formal ALARP

Assessment required?

(Requirements as per AS2885.6,

Section 4)

Action Comments

Priority Date

Required

Failure Event and

ConsequenceAction / Control Measure

Act

ion

ee Failure Event Credible /

AS2885 Non-Compliance


Consequence Severity Risk Level

Maj

or

Yes 2 Phys / 2 Proc / 100m / No Rupture / 10 GJ/s

Yes

Triv

ial

Min

or

Neg

ligib

le

T1 Clearing and Grubbing (minor vegetation, bushes, trees)

Yes No

Yes

Neg

ligib

le

Neg

ligib

le

Pipe buckling requiring repair

2 Phys / 2 Proc / 100m / No Rupture / 10 GJ/s

Item ID

Existing Threat Control

Yes Pipeline Rupture & Ignition

Hyp

othe

tical

Cat

astr

ophi

c

Sev

ere

Min

or

Maj

or

Sev

ere

Sev

ere

Inte

rmed

iate

Neg

ligib

le

Residual Risk Analysis

Is this a Major Accident Event?

Additional CommentsExt. Int. Threat?

Procedural Controls(Design and/or procedural


Required Controls for EI Threats (Physical / Procedural

/ Sign Spacing / Rupture / Energy Release)

T1/T2 require Separation & Resistance to Penetration. Refer AS2885.6 Sect 5.4.4

Failure Event Credible /


Rem

ote

Dent and Gouge requiring repair

C -6

Rem

ote

N/A

Fre

qu

ency

Risk Level

Fre

qu

encyIs Risk

Acceptable or ALARP?

No

C-7 Auguring for Bollard / Fence Post Installation

EarthworksT1


Neg

ligib

le

PGP


Yes


305.977 to 308.048

T1 Earthworks Excavation / Removal of Cover (Clear and Grade, Strip Top Soil, Landscaping Works, Establishing Site Levels)

Yes

Is this a Major

Accident Event?

Is Risk Acceptable or

ALARP?

Is Formal ALARP


Low

Low

Min

or

Pipeline Rupture & Ignition

Hyp

othe

tical

Cat

astr

ophi

c

Sev

ere

Min

or

Pipeline Rupture & Ignition

Hyp

othe

tical

No

NoNo

YesNo

Neg

ligib

le

Neg

ligib

le

Neg

ligib

le

Yes Yes No

Sev

ere

Sev

ere

Inte

rmed

iate

Failure not credible once slab is installed

N/A

Sev

ere

N/A

Low

Neg

ligib

le

Neg

ligib

le

No Yes

Low

Neg

ligib

le

Neg

ligib

le

Yes Yes YesGnangara Road to Park Street

PGP 305.977 to 308.048

T1 Service Installation - Lighting cables- Power- Water- Gas- Communication- Drainage - Sewer

T1

T1 Installation of Services within roads:- Electrical and Communications- Water, Drainage

No additional threats identified Threats from these activities covered under threat assessments above (e.g. Excavation, Compaction, Vehicle Loads)

Neg

ligib

le

No Yes No

Yes No


PGP 305.977 to 308.048

T1

305.977 to 308.048

T1 Earthworks - Compaction Activities (Development and at Road Crossings)

Compaction / Vibrations from Equipment

Yes YesGnangara Road to Park Street

C-9 Earthworks - Import of Fill (approx. maximum of 0.5m additional cover over pipeline)

Loads on Pipeline


PGP 305.977 to 308.048

T1 Installation of Offices and Set Up of Lay Down Areas

Equipment / Building loads over the Pipeline

Triv

ial

Min

or


PGP 305.977 to 308.048

T1 Survey and Marking


Neg

ligib

le

Neg

ligib

le

No


PGP

C-1 Gnangara Road to Park Street

PGP 305.977 to 308.048

T1 General Road Legal Vehicles crossing the Gas Pipeline


No

Neg

ligib

le

Neg

ligib

le


PGP 305.977 to 308.048

T1 General Non - Road Legal Vehicles / Equipment crossing the Gas Pipeline


Yes Pipeline Dent requiring repair

C-5 Entangled vegetation roots around pipeline


Yes

C-3

305.977 to 308.048

Low

Low

C-4

Buried Service Installation - Lighting cables- Power- Water- Gas- Communication- Drainage - Sewer- Irrigation for Landscaping

Open Trenching

PGP


PGP 305.977 to 308.048

T1 Earthworks Auguring for Light Pole Installation


Yes Minor Leak (from Pilot Drill) with potential ignition

Rem

ote

Maj

or

Sev

ere

Min

or

Sev

ere

Min

or

Min

or

Inte

rmed

iate

Low

Neg

ligib

le

Low

Neg

ligib

le

Neg

ligib

le

No Yes Yes

Page 1 of 3


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Kilometre Point

Lo

cati

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Cla

ssif

icat

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Feature Description

Location



Is Threat Credible?




Is Formal ALARP



Section 4)

Action Comments

Priority Date

Required

Failure Event and


Act

ion




Item ID

Existing Threat Control Residual Risk Analysis









AS2885 Non-Compliance F

req

uen

cy

Risk Level

Fre

qu

encyIs Risk


Is this a Major

Accident Event?


ALARP?

Is Formal ALARP


Burial MarkingWall Thickness Patrolling

DBYDLiaison

Burial MarkingWall Thickness Patrolling

DBYDLiaison

Burial PatrollingWall Thickness InspectionsSlab

Burial LiaisonWall Thickness PatrollingSlab DBYD

Burial Marking 22. Refer action above regarding requirement for slabs at road crossings

Slab PatrollingDBYDLiaison

Burial Patrolling 26. Install Slabs above gas pipeline at new service crossing locations and new road crossing location (under road and either side).APA to provide details of required slab.

DH/GC Prior to works

Wall Thickness InspectionsSlab

Burial Liaison 26. Install Slabs above gas pipeline at new service crossing locations and new road crossing location (under road and either side).APA to provide details of required slab.


Slab PatrollingDBYD

Burial Marking 26. Install Slabs above gas pipeline at new service crossing locations and new road crossing location (under road and either side).APA to provide details of required slab.


Slab PatrollingDBYDLiaison

Wall Thickness Marking

Burial PatrollingLiaison





Marking 23. Consider improving liaison and signage GC Prior to Works

Liaison 27. 100m is the maximum preferred sign spacing. Anything beyond 100m to be approved by APA Group.

DH Prior to Works

DBYDPatrolling

Wall Thickness Patrolling

Burial LiaisonDBYD

Slab Marking

PatrollingDBYDLiaison

LS - 6C Gnangara Road to Park Street

PGP 305.977 to 308.048

T1 New Buried Services at New Road Crossing of PGP - at POS14 connecting Brooklands Drive to Park St

Session #2 - 25/7/19

Excavation and Maintenance of services at Road Crossings


No

No


No

T1 Major Service Crossing under Gas Pipeline (with Slabs Installed above Gas Pipeline) (incl. Sewer, Water Main or Drain)

No

LS - 6A Gnangara Road to Park Street

PGP 305.977 to 308.048

T1 New Road Crossing of PGP -at POS14 connecting Brooklands Drive to Park St

Session #2 - 25/7/19

Vehicle Loads Yes Yes 2 Phys / 2 Proc / 100m / No Rupture / 10 GJ/s

No

LS - 6B


PGP 305.977 to 308.048

T1 Public Open Space - Drainage infrastructure located outside Pipeline Easement, however draining overflow into easement

Drainage overflow into easement and potential erosion.

Hyp

othe

tical

LS - 11 Yes No


PGP 305.977 to 308.048


Yes

No


PGP 305.977 to 308.048

T1 Public Open Space Maintenance Activities (Irrigation repairs, Mowing etc.)


No


PGP 305.977 to 308.048

T1 New Road Crossing of PGP -at POS14 connecting Brooklands Drive to Park St

Session #2 - 25/7/19

Maintenance activities impacting pipeline including road widening, grading, open drain clearing and vibratory compaction


No


PGP

Maintenance activities impacting pipeline including road widening, grading, open drain clearing and vibratory compaction

Rupture with potential ignition

Drainage Basin outside of Pipeline Easement

Maintenance Activities No Drainage Basins outside of Pipeline Easement

T1



No

Min

or

Sev

ere

LS - 3 Gnangara Road to Park Street

Yes

PGP 305.977 to 308.048

T1 Public Open Space

LS - 4 T1 New Road Crossing - x3 to 4 Roads being upgraded

Vehicle Loads Yes Yes 2 Phys / 2 Proc / 100m / No Rupture / 10 GJ/s

New Road Crossing - x3 to 4 Roads being upgraded

LS - 9

No

305.977 to 308.048

305.977 to 308.048


Road Legal Vehicle Loads (Although no tracks expected)



PGP T1

Pedestrian Paths Maintenance activities impacting pipeline


No

LS - 15 POS over Pipeline Easement


PGP 305.977 to 308.048

T1 Fencing / Bollards Installation / Maintenance activities impacting pipeline

Yes

PGP 305.977 to 308.048

T1

Cat

astr

ophi

c

Sev

ere

Min

or

Maj

or

New & Existing Loc Specific Threats (During Operations)

Inte

rmed

iate

Neg

ligib

le

Neg

ligib

le

Low

Neg

ligib

le

Neg

ligib

le

YesLS - 10 Gnangara Road to Park Street


LS - 12


PGP 305.977 to 308.048

T1 Buried Services (Existing or New) at Road Crossing

Excavation and Maintenance of services at Road Crossings

Yes

Excavation and Maintenance Yes Yes 2 Phys / 2 Proc / 100m / No Rupture / 10 GJ/s

No

PGP 305.977 to 308.048

T1 Public Open Space Installation of Bores Yes

No


PGP 305.977 to 308.048

T1 Drainage Basin Flooding of Easement No Drainage basins designed for 1 in 1 year flood and outside of the easement


PGP 305.977 to 308.048

T1 Public Open Space Fencing Maintenance / Bollards


No

PGP 305.977 to 308.048

T1 Access along Pipeline by APA Group

Access restricted

Subject to ALARP Assessment which is to be performed

Yes

PGP 305.977 to 308.048

YesYes



PGP 305.977 to 308.048

T1 Residential Landowner Activities (Abutting Easement)

Fence Maintenance, Reticulation, Mowing, Gardening, Bores, Pergolas, Cultivating, Horticulture Activity and External Building Construction

No Separation between Residence Fence and Pipeline of approx. 10m

Page 2 of 3


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Kilometre Point

Lo

cati

on

Cla

ssif

icat

ion

Feature Description

Location



Is Threat Credible?




Is Formal ALARP



Section 4)

Action Comments

Priority Date

Required

Failure Event and


Act

ion




Item ID

Existing Threat Control Residual Risk Analysis









AS2885 Non-Compliance F

req

uen

cy

Risk Level

Fre

qu

encyIs Risk


Is this a Major

Accident Event?


ALARP?

Is Formal ALARP


24. Details of Electrical Equipment and Transformers to be submitted to APA for assessment to confirm compliance with AS4853

BDG / APA

Prior to Electrical Equipment Installation

Non Location Specific Threats (During Operations which could result in a Failure Event) - No Change to Location Class Wall Thickness In-Line InspectionCathodic Protection InspectionsPipe Coating Patrolling

Odorised GasDCVG Survey

NLS - 3 Gnangara Road to Park Street

PGP 305.977 to 308.048

T1 N/A Failure of Threat Control Measures - All Controls Fail - Leading to a Failure Event (as per AS2885.6 Sect 3.7, Control Failure Check)

No Failure Event, LS-10, already assessed so no further assessment required for All Controls Fail

PGP 305.977 to 308.048

T1 Electrical Transformers and Equipment

Refer to action Yes Refer to Action

NLS - 1 Gnangara Road to Park Street

Low

Neg

ligib

le

Neg

ligib

le

Leak (pin hole expected with no ignition)

Rem

ote

Yes NoNo

No

Low

NLS - 2 305.977 to 308.048

Internal CorrosionGnangara Road to Park Street

N/A

Sev

ere

Min

or

Sev

ere

Min

or

Min

or


LS - 16

NoYes

No active internal corrosion on pipeline as evident by ILI

T1 N/A

305.977 to 308.048

PGP

Neg

ligib

le

PGP

T1 N/A External Corrosion Yes

Page 3 of 3




WORKSHOP REPORT


APPENDIX C: SIGN ON SHEETS

Workshop Session #1

Workshop Session #2




WORKSHOP REPORT


APPENDIX D: REFERENCE DOCUMENTS

Terms of Reference Document (Doc No: TOR-JDSI-1469)

SMS Guide Words


JDSI CONSULTING ENGINEERS

BROOKLANDS, HENLEY BROOK DEVELOPMENT

APA GROUP

PARMELIA GAS PIPELINE

AS2885 SAFETY MANAGEMENT STUDY WORKSHOP

TERMS OF REFERENCE

Document No: TOR-JDSI-1469Rev Date Description Prepared Checked Approved Licensee

0 18/07/2019 Issued for Use R Thornton

B Watters R Thornton

Snr Pipeline Engineer

Project Officer Snr Pipeline Engineer


JDSI CONSULTING ENGINEERSBROOKLANDS DEVELOPMENT

AS2885 SMS WORKSHOPTERMS OF REFERENCE

Rev 0 TOR-JDSI-1469 i

Disclaimer

1. Whilst the information contained in this document is considered to be true and correct at the date of publication, changes in circumstances after the time of publication may impact on the accuracy of the information. The information may change without notice and Pipeline Integrity Pty Ltd is not in any way liable for the accuracy of any information printed and stored or in any way interpreted and used by a user.

2. Whilst the information contained in this document has been presented with all due care, Pipeline Integrity Pty Ltd does not warrant or represent that the information is free from errors or omission.




Rev 0 TOR-JDSI-1469 ii

CONTENTS

1.0 TABLE OF ABBREVIATIONS AND TERMS ................................................................ 4

2.0 REFERENCES ............................................................................................................. 5

3.0 SCOPE ......................................................................................................................... 6

3.1 Excluded from Scope .................................................................................................... 6

4.0 PIPELINE OVERVIEW ................................................................................................. 7

5.0 PROPOSED DEVELOPMENT OVERVIEW ................................................................ 8

5.1 Proposed Construction Activities ................................................................................... 9

6.0 ATTENDEES, VENUE & WORKSHOP SCHEDULE ................................................. 10

7.0 TERMS OF REFERENCE ......................................................................................... 11

7.1 Safety Management Study Facilitator ......................................................................... 11

7.2 Process ....................................................................................................................... 11

7.3 Preparation .................................................................................................................. 12

7.4 Workshop .................................................................................................................... 13

7.5 Reporting ..................................................................................................................... 15

7.6 Management of Actions ............................................................................................... 15

APPENDIX A: RISK MATRIX ............................................................................................... 16

APPENDIX B: PROPOSED DEVELOPMENT DRAWINGS ................................................. 17




Rev 0 TOR-JDSI-1469 iii

LIST OF FIGURES

Figure 1: SMS Workshop Process ........................................................................................ 13

LIST OF TABLES

Table 1: Abbreviations and Terms used in the body of the Report ......................................... 4

Table 2: Reference Documents .............................................................................................. 5

Table 3: Pipeline Overview ..................................................................................................... 7

Table 4: Proposed Works Drawings ....................................................................................... 8

Table 5: Workshop Schedule ................................................................................................ 10

Table 6: Proposed Workshop Attendees .............................................................................. 10




Rev 0 TOR-JDSI-1469 4

1.0 TABLE OF ABBREVIATIONS AND TERMS

Abbreviation / Term

Description

ALARP Risk associated with a Threat is deemed ALARP if the threat is controlled, or the residual risk is assessed to be low or negligible, or the residual risk is assessed to be intermediate and is formally demonstrated to be ALARP. (AS2885.0 Section 1.5.3)

JDSI JDSI Consulting Engineers KP Kilometre Point MAE A Major Accident Event (MAE) is defined as “an event connected with a

pipeline operation, including a natural event, having the potential to cause multiple fatalities of persons engaged in the operation or other protected persons”. (AS2885.3 Appendix E2)

MAOP Maximum Allowable Operating Pressure Multiple More than two (with respect to MAE) Non-Credible Threat Threat for which the likelihood of occurrence is so low that it does not exist

for any practical purpose at that location. (AS2885.0 Section 1.5.43) PGP Parmelia Gas Pipeline SMS Safety Management Study TOR Terms of Reference

Table 1: Abbreviations and Terms used in the body of the Report





2.0 REFERENCES

Table 2: Reference Documents

Document Number Title Standards AS2885.0 - 2018 Pipelines Gas and Liquid Petroleum, Part 0 – General Requirements AS2885.1 - 2018 Pipelines Gas and Liquid Petroleum, Part 1 – Design and Construction AS2885.3 - 2012 Pipelines Gas and Liquid Petroleum, Part 3 – Operation & Maintenance AS2885.6 - 2018 Pipelines Gas and Liquid Petroleum, Part 6 – Pipeline Safety Management AS ISO 31000 Risk Management – Principles and Guidelines Documents PGP.2373-RP-HSE-0001 Parmelia Gas Pipeline System 2018 AS2885 SMS Workshop Report R-BDG-1336 Brooklands Estate Initial Safety Management Study Workshop Report AS2885.6 - 2018 AS2885.6-2018 Risk Assessment Matrix R-PI-453 SMS Guide Words Drawings PRO BRO 03-011-01 (Date: 26.06.19)


MIRHB-1-008A (Rev A, Date: 6/6/2019)



N/A Locality Plan - Brooklands Estate

N/A Aerial Photograph with Pipeline Centreline - Brooklands Estate

101-D-L-39 PGP Alignment Sheet





3.0 SCOPE

The Scope of this Terms of Reference document is to outline the requirements for an AS2885 Safety Management Study (SMS) Workshop and document the process for the proposed Residential Subdivision Property Development Project at Brooklands Estate, in Henley Brook.

This SMS Workshop is required to take into account the relevant section of the following existing operating pipeline:

Parmelia Gas Pipeline (Operated by APA Group) (KP305.977 KP308.048)

As part of the SMS Workshop assessment, the following is required:

1. Review of the Location Classification for the above pipeline taking into account the Proposed Works

2. Safety Management Study for the above Pipeline for the section in which the pipeline measurement length encompasses the Proposed Works (Location Specific and Non-Location Specific Threats)

The Safety Management Study is required to assess:

1. Threats to the pipeline from proposed construction activities 2. Any new threats which may exist from the proposed works (during Operations) 3. If current controls to existing threats are sufficient taking into account the proposed

works and any Location Class changes which may arise

The above is a License and AS2885 requirement for the Parmelia Gas Pipeline.

The purpose of the Safety Management Study is to ensure the continued safe operation of the pipeline and safety of those in the surrounding area from the pipeline.

An initial Safety Management Study was performed in December of 2018 for Burgess Design Group (refer Workshop Report Doc No: R-BDG-1336). However, since then a new road crossing of the PGP as well as minor changes to the Structure Plan have been proposed. As such, a second workshop needs to be performed in order to update the Safety Management Study accordingly against the revised Structure Plan.

3.1 Excluded from Scope

The following items are excluded from the Scope:

Construction HAZID Formal ALARP Assessment (Performed Post Workshop as Required). Assessment of any other Gas Pipelines.





4.0 PIPELINE OVERVIEW

An overview of the Pipeline and relevant section which is to be assessed as part of the above Scope is outlined below.

Item Parmelia Pipeline

Pipeline License No 1, 2, 3

Location of Pipeline Affected by Proposed Works

Gnangara Road – KP305.977 (Start) Park Street – KP308.048 (Finish)

Product Natural Gas

Design Code AS 2885 (Originally built to ASME B31.8)

Diameter DN350

MAOP 7.48 MPa

Pipe Type API 5L X52

Wall Thickness Standard - 5.16 mm

Heavy Wall – 6.35mm

Coating Type Bonded HDPE Coating (Yellow Jacket)

Measurement Length (4.7kW/m2 Radiation Contour)

300 m (180 m to 12.6 kW/m2)


Current Location Class (Prior to Development)

T1 (No Secondary Class) (as per 2018 SMS Workshop Report Appendix 5 – Section ID

10)

Depth of Cover Generally 800mm to 1500mm

Above Ground Facilities Nil

DMP Licenced Asset Yes

Easement 50’

Table 3: Pipeline Overview

For further details refer to the drawings and documentation listed in Section 2.0.





5.0 PROPOSED DEVELOPMENT OVERVIEW

JDSI Consulting Engineers are involved in the Residential Subdivision Property Development Project at Brooklands Estate, in Henley Brook.

The development will encompass the following area / roads:

Gnangara Road Pine Street Henley Brook Ave Park Street, and Lord Street

The Proposed Works are within the vicinity of the Parmelia Gas Pipeline which is operated by APA Group.

The proposed development consists of the following:

Total Site Area is approximately 135 ha Approximately 3600 dwellings with an average Lot Size of 375m2 Residential lots which include areas of:

o R30 zoning o R40 zoning o R60 zoning

Primary Schools (two) Possible Future Lifestyle Village Public Open Space (approx. 12% of Area) Foreshore Area Water Corporation Facilities (three) Roads and Installation of Services A new road crossing the PGP (at Public Open Space 14)

Note: The above areas are approximated only and subject to Final Survey and Design.

The development is encumbered by an Easement for the Parmelia Gas Pipeline (PGP). This corridor extends in a North to South direction through the development area.

Details of the proposed works are as per the following documents which are attached in Appendix B:

Table 4: Proposed Works Drawings

Document No: Title

PRO BRO 03-011-01 (Date: 26.06.19) Structure Plan Map - Brooklands Estate

MIRHB-1-008A (Rev A, Date: 6/6/2019)







5.1 Proposed Construction Activities

Details of the proposed Construction Activities in the vicinity of the Parmelia Gas Pipeline are as outlined below:

Surveying and Marking

Establishment of Site Facilities (TBC)

Earth Works o Clear and Grade o Clear and Removal of Large Trees o Import and fill o Compaction

Construction activities for:

o Roadworks o New Road crossing of the PGP o Concrete footpaths o Landscaping o Hardscaping o Fencing o Light Poles

Installation of Services (Trenching, Backfill, Compaction)

o Electrical/Power o Communications o Gas o Water o Drainage o Sewer o Irrigation for Landscaping

Note: The majority of the above activities will be performed on the Parmelia Gas Pipeline Easement.





6.0 ATTENDEES, VENUE & WORKSHOP SCHEDULE

The Safety Management Study is scheduled to be conducted at the APA Group Office located at Eastpoint Plaza, Adelaide Tce Perth, WA per the details below.

Date Detail Start Finish Report Submission

25/07/2019 SMS Workshop 9:00 am 1:00 pm Draft - 1-2 weeks

Final – 1 week from receiving Draft comments

Table 5: Workshop Schedule

The proposed attendees for the workshop are listed below:

Name Initials Position Company Developer’s Consultant – JDSI Consulting Engineers

David Hellmuth DH Managing Director JDSI



Adam Crichton AC Risk Engineer APA Group

Warren Guthrie WG PGP Team Leader APA Group

Facilitator – Pipeline Integrity


Table 6: Proposed Workshop Attendees





7.0 TERMS OF REFERENCE

7.1 Safety Management Study Facilitator

The Facilitator provides a key role and shall:

Be given the necessary support and authority to objectively, systematically and impartially execute the requirements of these TOR

Provide requirements to the Workshop Sponsor that are necessary to ensure that the requirements of these TOR are met, with regard to the conduct of the workshop, preparation and issuance of the necessary documents

Have suitable equipment for recording minutes of the workshop Be experienced in facilitating similar style workshops and have suitable personal

attributes in order to foster the active participation of all attendees and maintain effective time and resources management

Possess adequate and relevant technical knowledge and experience to understand and control discussion and / or facilitate resolution of issues

Liaise with the Workshop Sponsor and / or other relevant parties to plan the Workshop

Ensure the adequacy, currency and validity of all documentations, data and information prior to use in the AS2885 SMS Workshop

Lead and conduct the SMS Workshop Ensure the workshop team comprises representation by all required stakeholders,

together with a broad spectrum of experiences relevant to the design & operation of pipeline systems

Record, review, approve and distribute the workshop meeting minutes, including a record of all decisions

Produce a record of all threats (inclusive of both credible and non-credible hazards) considered and Corrective Recommendations (based on the assessed risks) identified

Prepare, approve and distribute the Workshop Report outlining and demonstrating how the purpose and requirements of these TOR are met

Have a good knowledge of AS2885

7.2 Process

The following sections outline the SMS process and requirements for each stage of the SMS.





7.3 Preparation

As preparation for the workshop the following shall be performed:

Populate the SMS logging tool with all relevant Features, Crossings, Location Classification and KP points required to perform the SMS.

Collate all necessary reference documentation consisting of: o Design Basis Manual or relevant Pipeline details o Drawings (including Facility General Arrangements, Route Drawing/Alignment

Sheets where applicable) o Previous SMS / Location Classification Review (where relevant) o Pipeline Easement Reference Documentation (Patrol reports, Photographs,

Encroachments, Proposed Crossings as applicable) o Calculations:

Penetration resistance calculations (including Critical Defect Length) 4.7KW/m2 Radiation Contour (Measurement Length)

o Details of any Proposed Works or Developments near the Pipeline Prepare a summary of the following pipeline details:

o MAOP o Design Code o Nominal Diameter o Wall Thickness o Pipe Grade o Pipe Coating o Minimum Depth of Cover





7.4 Workshop

The Workshop will be conducted as per the requirements of AS2885.6-2018. The SMS process will be as outlined in the table below (taken from AS2885.6 Figure A1).

Figure 1: SMS Workshop Process





Essentially the process will be as follows:

Present the pipeline details Conduct Location Classification Review “Walk” the line section via aerial photographs or similar (e.g. Photos of identified

features) and refer to the location classes as defined by the Location Classification Review

Employ AS2885 with regard to location sub-classes, signage requirements and minimum number of protection measures (physical and procedural)

Select first section and review landowners and activities Review / log non-location threats that are general to that section including parallel

threats. If the threat is credible, log external interference protection measures and other prevention measures as necessary

If necessary, proceed to risk assessment using the risk matrix from AS2885.6-2018 attached in Appendix A

Select “Location Specific Threats” and review / log threats and external interference protection measures and other prevention measures as necessary, and proceed to risk matrix assessment as necessary

Log recommendations where required. Assign to appropriate personnel in attendance at workshop and provide estimated target date for completion.

Where the Risk is deemed not acceptable or not “As Low as Reasonably Practical (ALARP)” apply further control measures and re-assess until residual risk is acceptable

Identify Major Accident Events (events which could cause multiple fatalities) Identify threats requiring a Formal ALARP Assessment (includes MAE Events and

Threats with Risk Levels of Intermediate or higher) Note: Where required Formal ALARP Assessments will be done as a separate

Scope of Work and is outside this Terms of Reference Repeat steps above for subsequent sections

NOTE 1: Typical threats will be risk assessed the first time they are encountered and then referenced (or copied) where they apply for subsequent typical threats

NOTE 2: Non-Location Threats include non-process threats to Pipeline including corrosion, intentional damage etc.





7.5 Reporting

The documentation to be submitted upon completion of the SMS Workshop consists of a Report containing:

A populated register of the threats identified in the workshop and their assessment A list of actions generated during the workshop A copy of or reference to the Logging Tool Worksheet used in the SMS The Location Class Review Results A list of any Major Accident Events identified An outline of the Methodology and Reference to the Terms of Reference

The Reporting Schedule is as outlined in Section 6.0.

7.6 Management of Actions

Upon completion of the final report, the Client will perform a review and prepare a proposed action plan. This will be submitted to the Pipeline Licensee in a timely manner along with the SMS report prepared in order to facilitate the management of the required actions.

Actions raised from the SMS will be implemented in the Client’s relevant Action Management System.

This will close out the SMS Project and allow management of the required actions to be taken as a separate project.





APPENDIX A: RISK MATRIX

AS2885.6 - 2018 Risk Matrix


AS2885.6‐2018 RISK MATRIX

Catastrophic Major Severe Minor Trivial

Multiple fatalities result

One or two fatalities; or several

people with life-threatening injuries

Injury or illness requiring hospital

treatment

Injuries requiring first aid treatment

Minimal impact on health & safety

Fre

qu

ent

Expected to occur once per year or more.

Extreme Extreme High Intermediate Low

Occ

asio

nal

May occur occasionally in the life of the pipeline

Extreme High Intermediate Low Low

Un

like

ly

Unlikely to occur within the life of the pipeline, but possible.

High High Intermediate Low Negligible

Rem

ote Not anticipated for this

pipeline at this location.High Intermediate Low Negligible Negligible

Hyp

oth

etic

al

Theoretically possible but would only occur under extraordinary circumstances

Intermediate Low Negligible Negligible Negligible

No loss or restriction of

pipeline supply

Environment

Widespread or significant societal

impact, such as complete loss of supply to a major

city for an extended time

(more than a few days)

Widespread societal impact such as loss of

supply to a major city for a short time (hours to days) or to a localized area for a longer time

Localized societal impact or short-

term supply interruption (hours)

Interruption or restriction of supply

but shortfall met from other sources

Intermediate Repeat threat identification and risk evaluation processes to verify the risk estimation; determine the accuracy and uncertainty of the

estimation. Where the risk rank is confirmed to be "intermediate", where reasonably practicable modify the threat, the frequency or the

consequence to reduce the risk rank to "low" or "negligible".

Where it is not reasonably practicable to reduce the risk rank to "low" or "negligible", action shall be taken to:

(a) remove threats, reduce frequencies and/or reduce severity of consequences to the extent practicable; and

(b) Formally demonstrate ALARP

For an in‐service pipeline, the reduction to "low" or "negligible" or demonstration of ALARP shall be completed as soon as possible. Risk

reduction or demonstration of ALARP should be completed within a few months.Low

Impact widespread; viability of

ecosystems or species affected; or

permanent major changes

Major impact well outside Pipeline

Corridor or site; or long-term severe

effects; or rectification difficult

Localised impact, substantially

rectified within a year or so

Impact very localized and very

short-term (weeks), minimal

rectification

No effect; or minor impact rectified

rapidly (days) with negligible residual

effect

FR

EQ

UE

NC

YC

ON

SE

QU

EN

CE

S

Typical Severity Classes

People

Supply

NOTE: Appendix G in AS2885.6:2018 provides guidance on assessment of consequence severities

Risk Rank Risk Treatment Actions

Extreme Modify the threat, the frequency or the consequences so that the risk rank is reduced to Intermediate or lower.

For an in‐service pipeline, the risk shall be reduced immediately.

High Modify the threat, the frequency or the consequences so that the risk rank is reduced to Intermediate or lower.

For an in‐service pipeline, the risk shall be reduced as soon as possible. Risk Reduction should be completed within a timescale of not more than

a few weeks.

Determine the management plan for the threat to prevent occurrence and to monitor changes that could affect the classification

Negligible Review at the next relevant SMS (for periodic operational review, Land Use Change, Encroachment, or change of operating conditions)





APPENDIX B: PROPOSED DEVELOPMENT DRAWINGS

Document No: Title

PRO BRO 03-011-01 (Date: 26.06.19) Structure Plan Map - Brooklands Estate

MIRHB-1-008A (Rev A, Date: 6/6/2019)




POS 2

POS 9

1.8105ha

3.8789ha

1.5546ha

2.8455ha

Partridge Street

WC

1.8921haPOS 6

POS 4

Henley Street

Drive

POS 10

1.3007ha

Henley

New

4.1810ha

Place

POS 13

POS 3

3.5001ha

Old

PSPS

Street

0.7741haPOS 1

1.8106ha

Place

3.5005ha

Lord

Brooklands

Fairmount Blvd

Astu

rian

Driv

e

Gnangara Road

Street

Martingale A

ve

Pine Street

Andrea Drive

Petrana

Park Street

Martingale

Ave

Pinaster Pde

Losino Blvd

Arpent Link

WC

POS 7

0.9482haPOS 8

WC

POS 150.3867ha

POS 50.5249ha

POS 145.7756ha

POS 160.2901ha

NON-CREDITABLE

POS 115.4733ha

POS 121.5820ha

BrookA

ve

Lord

POSSIBLE ROAD CROSSING,SUBJECT TO PIPELINE RISKASSESSMENT

NORTH

Plan No:Date:

Client:Planner:26.06.19

PROGRESSMS/MB

CITY OF SWANHENLEY BROOK

HENLEY BROOK STRUCTURE PLANPLAN 1: STRUCTURE PLAN MAP

All areas and dimensions are subject to survey, engineering and detailed design

and may change without notice. © Copyright of Burgess Design Group.

LEGEND

STRUCTURE PLAN AREA

MRS RESERVES

OTHER REGIONAL ROAD

LOCAL SCHEME ZONES

RESIDENTIAL (R30-R60)

LOCAL SCHEME RESERVES

PUBLIC OPEN SPACE

PUBLIC PURPOSES - PRIMARY SCHOOL

PUBLIC PURPOSES - WATER CORPORATION

ROADS

INTEGRATOR B (25.2m)

NEIGHBOURHOOD CONNECTOR A (24.4m)

NEIGHBOURHOOD CONNECTOR B (19.4m)

ACCESS STREET B (18m)

ACCESS STREET C & D (10-15m)

SAFE ACTIVE STREET (15m)

LANEWAY (6m)

INDICATIVE EXTERNAL ROADS

OTHER

INDICATIVE ST LEONARDS CREEK ALIGNMENT(SUBJECT TO FURTHER ASSESSMENT)

GAS PIPELINE EASEMENT

NOISE MODELLING REQUIRED

POSSIBLE FUTURE LIFESTYLE VILLAGE

POSSIBLE FUTURE RAILWAY

ROUNDABOUT INTERSECTION

POSSIBLE BLACK COCKATOO ROOST TREETO BE RETAINED

PS

WC

0 100 200 300m

SCALE 1:7,500

5025

(A3)


AVEN

UE

HENLEY BRO

OK

STREETLO

RD

DRIVEGNANGARA

DRIVE

AST

URIA

N

JOHN

SAUNDERS

STREETRO

BERT

STREETPIN

E

STREETPARK

STREET

GEORGEFFPLA

CEDIANE DRIVE

BROOKLANDS

STREET

HENLEY

NORTH

Date: 30.07.15

CITY OF SWANHENLEY BROOK

BROOKLANDSAERIAL PHOTOGRAPH

Plan No:

Client: ProgressPlanner: ZM

PRO BRO 9-03

LEGEND

Subject Land

500m400300200

SCALE 1:15,000

0 100

(A4)


BROOKLANDS DRIVE

HENLEY STREET

PARK STREET

30M WID

E DAMPIER PIP

ELINE

20M WID

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20

15

4.2 17

15

12

30

12.5

30

12.5

12.5

30

30

12.5 15

30

13.2

30

30

12.5

30

12.5

12.5

30

12.5

12.5

30

12.5

12.5

30

12.5

12.5

30

12.5

3.8

27.6

14.9

18

4.6 15.8

30

24.9

27.6

15

30

15

12.5

30

9.2 3.4

29.4

12.7

27

17

4.2 12

20

15

20

12.5

12.5 12.5

20

12.5

12.5

20

12.5

3.8

17.4

17.5

18.6

12.8

37.5

12.5

40

10.5

10.7

35.3

12.5

12.8

32.8

15 141.3

30

12.5

12.5

30

15

15

30

17

17

30

15

15

30

12

30

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12.5

30

12.5

12.5

30

15

22

4.212

25

15

25

15

15

25

15

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22

15

12

12.5

30

30

12.5

30

12

30

15

30

17

30

15

30

12.5

30

15

30

12.5

30

10.5

30

12.5

30

4.2 12

20

15

17

15

20

15

15

20

15

4.2

17

15

12

12.5

30

12.5

30

10.5

3010.5

12.5

30

12.5

15

30

15

12.5

30

12.5

15

30

15

17

30

17

15

30

15

12

30

12

12.5

30

12.5

12.5

30

12.5

15

22

4.212

25

15

25

15

15

25

15

4.2

22

15

12

30

12.5

30

12.5

30

12

30

15

30

17

30

15

30

12.5

30

15

30

12.5

30

10.5

30

12.5

30

17

4.2 12

20

15

12.5

20

12.5

12.5

20

12.5

4.2

17

15

12

17

30

17

30

15

30

15

15

30

15

15

30

15

30

15

1527

4.212

30

15

12.50

30

12.512.5

12.5

30

12

4.2

27

15

25

15

25

15

25

15

25

15

25

17

25

15

20

15

20

4.2

17

15

12

30

12.5

30

12.5

12.5

30

12.5

12.5

30

12.5

12.5

30

12.5

12.5

30

12.5

14.5

30

14.5

27

4.212

30

15

15

30

15

15

30

15

22.8

3.6

28.1

17.5

28.5

32.5

15

25

1312.5

25

12.5

25

12.5

25

15

25

15

4.2 22

17.5

14.5

22

4.214.5

25

17.5

15

25

15

12.5

25

12.5

12.5

25

12.5

12.5

25

12.5

15

25

15

12.5

25

12.5

10.5

25

10.5

12.5

25

12.5

12.5

25

12.5

17.1

25

17.1

16.6

10.7

30

10.5

17

4.2

12 20

15

15 20

15

15 20

15

12

4.2

17

15

10.8

25

30

12.5

25

12.5

25

10.525

12.5

25

15

25

12.5

25

12.5

25

12.5

25

12.5

12.5

25

12.5

20

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20

17 4.2

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23.3 4

9.6

24.7

12.5

12.6

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12.5

12.6

21.6

12.5

4.517

12.5 9.6

12.5

25

12.5

25

12.5

25

12.5

12.5

25

12.5

12.5

25

12.5

12.5

25

12.5

10.5

25

10.5

10.5

25

10.5

25

10.5

10.5

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15

15

17

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12 2015 20

15 20

15

12

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17

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10.8

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19

12.5

25

12.5

12.5

25

12.5

25

12.5

25

12.5

25

12.5

25

15

20

15

20

12.5

20

12.5

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25

12.5

25

12.5

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12.5

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15.2

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28.1

13.1

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13.1

29.3

25.5

15.7

20.9

12

11

30

21

23.5

17

30

17

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10

37

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11.6

37

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38.8

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13.6

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30

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15

30

15

30

17

17

30

15

15

30

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12.5

30

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10.5

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12.5

30

15

15

30

17

17

30

15

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30

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12.5

30

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10.5

30

12.5

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30

15

15

30

17

17

30

15

15

30

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28.5

12

27.7

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15

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15

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30

15

30

17

30

15

30

12.5

30

10.5

30

12.5

30

10.5

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12.5

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25

12.8

25

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25

15

15

25

17

25

17

15

25

15

17

4.2

12

20

15

12.5

20

12.5

12.5

20

12.5

12

4.2 17

15

30

15

30

17

30

15

30

12.5

30

10.5

30

12.8

30

30

12.8

30

12.8

10.5

30

10.5

12.5

30

12.5

15

30

15

17

30

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15

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17

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12

20

15

12.5

20

12.5

12.5

20

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15

15

25

25

17

25

15

25

12.5

25

10.5

25

12.8

25

25

15.3

25

15.3

15

25

15

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12.5

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22

15

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14

25

17

17

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30.6

15

15

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15

15

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27.5

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30

27

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30

15

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15

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15

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17

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12

25

15

15

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15

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30

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17

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15

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27

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15

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15

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17

30

17

30

17

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15

15

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17

17

15

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30

17

17

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27

15.9

12.9

20

15

20

15

20

15

15

15

15

20

20

15

15

15

15

20

15

15

20

20

15

15

20

15

15

20

15

15

20

15

15

20

15

15

20

15

15

4.217

15.5

12.5

5.6

119.9

4.4

45.8

61.2

6.1

190.3

6.1

DESIGNINDICATIVE

DESIGNINDICATIVE

1.126ha

1.332ha

1075m²

1393m²

3162m²

9871m²

760m²

1100m²

5118m² 352m²

557m²

3980m²

8086m²4619m²

458m²

3116m²

1.205ha

4989m²

2513m²

POS 2

POS 5

POS 6

POS 7 POS 8

POS 10

POS 9

POS 11 POS 12

POS 13

POS 14

POS 15

POS 4

314m²250m²250m²296m²

313m²

313m²

375m²

425m²

375m²

349m²

473m² 375m² 375m² 445m²

432m²

464m²

526m²

464m²

387m²

387m²

251m²225m²225m²225m²225m²225m²225m²225m²

249m²

225m²

225m²

225m²

225m²

225m²

225m²

225m²

225m²

225m²

225m²

225m²

225m²

225m²

209m²

187m²

188m²

187m²

187m²

188m²

187m²

188m²

187m²

188m²

187m²

188m²

210m²

371m²375m²375m²369m²

424m²

375m²

313m²

313m²

313m²

375m²

313m²

375m²

245m² 250m² 250m² 245m²

375m²

313m²

375m²

312m²

312m²

312m²

375m²

424m²

446m²375m²375m²445m²

424m²

425m²

375m²

313m²

313m²

313m²

375m²

313m²

375m²

295m² 250m² 250m² 296m²

450m²

375m²

450m²

375m²

375m²

375m²

450m²

510m²

509m²

450m²390m²450m²

312m²

375m²

312m²

313m²

313m²

375m²

370m² 375m² 375m² 370m²

375m²

313m²

313m²

312m²

375m²

313m²

153m²135m²153m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

179m²

273m²225m²225m²225m²225m²225m²273m²

179m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

188m²

187m²

153m²135m²153m²

521m²375m²375m²520m²

450m²

510m²

450m²

375m²

315m²

315m²

375m²

375m²

375m²

450m²

475m²300m² 296m²

329m²

375m²

375m²

375m²

315m²

315m²

375m²

450m²

510m²

450m²

370m²375m²375m²521m²

375m²

450m²

375m²

450m²

375m²

450m²

510m²

510m²

450m²

520m²

374m² 447m²494m²

616m²

523m²

375m²

313m²

375m²

313m²

375m²

313m²

447m²

421m²

561m²

385m²

462m²

385m²

462m²

385m²

475m²445m²

395m²450m²375m²375m²465m²505m²

300m²

296m²

375m² 375m² 375m² 450m² 395m²

375m²375m²375m²375m²375m²534m²

651m² 450m² 375m² 374m² 352m²

295m² 250m² 250m² 250m² 386m²

484m²

382m²

426m²

469m²

375m²

450m²

510m²

450m²

359m²

375m²

375m²

371m²375m²375m²371m²

375m²

375m²

359m²

450m²

510m²

450m²

375m²

450m²

375m²

315m²

375m²

296m² 300m² 300m² 296m²

375m²

315m²

375m²

450m²

375m²

450m²

510m²

450m²

359m²

375m²

375m²

371m²375m²375m²371m²

375m²

375m²

359m²

450m²

510m²

450m²

375m²

450m²

375m²

315m²

375m²

296m² 250m² 250m² 296m²

509m²

450m²

450m²

450m²

450m²

445m²375m²375m²445m²

375m²

375m²

375m²

375m²

424m²

300m² 295m²

375m²

375m²

375m²

375m²

375m²

434m²

446m²450m²450m²645m²

441m²

334m²

313m²

312m²

312m²

375m²

433m²

433m²375m²313m²313m²313m²375m²313m²263m²313m²313m²427m²525m²

296m²

300m²

300m²

296m²

534m² 313m² 312m² 262m² 312m² 375m² 312m² 312m² 312m² 312m²

250m²

246m²

314m²

299m²

279m²

255m²

313m²313m²313m²313m²313m²263m²263m²263m²459m²296m²

300m²

300m²

296m²

523m² 312m² 312m² 312m² 312m² 312m² 313m²

300m² 250m²313m² 313m²

375m²

446m²

450m²

375m²

498m²

339m²375m²

328m²

342m²348m²

597m²

510m²

536m²647m²

643m²428m²

490m² 906m²

450m²

510m²

450m²

375m²

375m²

446m²

380m² 375m² 600m²

428m²

371m²

417m²375m²377m²

380m² 315m² 375m² 315m² 375m² 450m² 510m² 450m²

525m²

404m²

395m²

458m²

450m²510m²450m²375m²315m²375m²315m²377m²

380m² 315m² 375m² 315m² 375m² 450m² 510m² 450m²

429m²

421m²

409m²

392m²

450m²510m²450m²375m²315m²375m²315m²377m²

320m²263m²313m²375m²425m²375m²

295m²

250m²

250m²

296m²

450m² 510m² 450m² 375m² 315m² 384m²

384m²315m²375m²450m²510m²450m²

296m²

250m²

250m²

296m²

375m² 425m² 375m² 313m² 263m² 320m²

383m²375m²312m²370m²

376m² 316m² 379m² 386m²

470m²

372m²

375m²

446m²

421m²

425m²

468m²479m²458m²458m²458m²382m²466m²

458m² 375m² 450m² 450m² 450m² 510m²

371m²

375m²

375m²

371m²

510m²450m²450m²450m²375m²458m²

458m² 375m² 450m² 450m² 450m² 510m²

510m²450m²510m²450m²510m²473m²

300m²

300m²

300m²

300m²

300m²

300m²

300m²

300m²

300m²

300m²

300m²

300m²

306m²

7527m²

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163 164 165

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creativedp.com.auW

[email protected]

(08) 9325 0200P

28 Brown Street, East Perth WA 6004A

A Mirvac ProjectDATUM: AHD

PROJECTION: PCG 94

DATE: 06/06/2019

PLAN: MIRHB-1-008ALots 102 - 107 & 14332 Henley Street, Lots 56 & 57 Park St & Lots 10, 11, 83, 84, 94 - 99 & 12352 Brooklands Drive, HENLEY BROOK

PROPOSED LOT TYPOLOGY PLAN

CHECK: BK

PLANNER: BK

DRAWN: RF

REVISION: A

0

shown on plan are subject to final survey. Carriageways depicted on plan are diagrammatic only.

responsibility is taken for any errors or omissions and is subject to change. Areas and dimensions

without prior consent from CD+P. All care has been taken in preparation of this plan but no

No part of this plan may be reproduced in any formCopyright Creative Design + Planning.

NORTH

15 30 45m

@ A1Scale: NTS

Size No. %

Lots Total Lots

119m² - 159m² 1.05%

160m² - 179m² 0.35%

180m² - 234m² 11.19%

235m² - 319m² 153 26.75%

320m² - 449m² 213 37.24%

450m² - 499m² 15.03%

500m² - 549m² 6.64%

550m² - 599m² 0.35%

600m² - 1000m² 1.22%

0.17%

Total Number of Lots 572

Minimum Lot Size 135m²

Maximum Lot Size 7527m²

Average Lot Size 373m²

Total Lot Area 21.3426ha

1001m²+ (GH)

6

2

64

86

38

2

7

1

TOTAL

17 x 30 Lots

15 x 30 Lots

12.5 x 30 Lots

10.5 x 30 Lots

7.5 x 30 RL Lots

17 x 25 Lots

15 x 25 Lots

12.5 x 25 Lots

10.5 x 25 Lots

7.5 x 25 RL Lots

15 x 20 Lots

12.5 x 20 Lots

7.5 x 18 Lots

94%

6%

20%

15%

8%

0%

0%

20%

8%

3%

0%

14%

0%

0%

TARGET %

+1 GH Lots

571 Lots

37 Lots

94 Lots

121 Lots

19 Lots

29 Lots

15 Lots

62 Lots

69 Lots

8 Lots

41 Lots

47 Lots

23 Lots

6 Lots

LOTS

100%

6.5%

16.5%

21.2%

3.3%

5.1%

2.6%

10.9%

12.1%

1.4%

7.2%

8.2%

4.0%

1.0%

%

LEGEND

LOT YIELD

DRAFT


GUIDE WORDS FOR AS2885

SAFETY MANAGEMENT STUDY WORKSHOP –

THREAT IDENTIFICATION

Document No: R-PI-453 Rev Date Description Prepared Checked Approved Licensee

0 03/07/2015 Issued for Use R Thornton

R Thornton




AS2885 SMS WORKSHOP GUIDE WORDS


Rev 0 R-PI-453 2

External Interference Natural Events

Blasting Cyclone*

Bogged Vehicles* Earthquake*

Cable Installation ‐ Plough Erosion Of Cover Or Support

Deep Ripping To 900mm Floods* (Erosion Or Impact Damage)

Deep Ploughing To 600mm Ground Movement*

Ploughing To 300mm Inundation Leading To Floatation

Excavation – Drainage / Ditch Maintenance Lightning*

Excavation Rail Maintenance Wind*

Excavation Road Maintenance Fire*

Excavation Installation Of New Services Other

Horizontal Boring / Drilling Electrical Effects

Marine Anchors Fault Voltages (From Nearby Electricity Towers)

Post Driving – Fence Construction / Maintenance

Induced Voltages (From Parallel Power Lines)

Vertical Boring ‐ Posthole Augers Operational And Maintenance Activities

Trench Excavation ‐ Other Services Bypass Control System Logic*

Other Exceeding MAOP*

Grading Inaccurate Test Equipment* (Leading To Incorrect Control And Safety Equipment Settings)

Pipeline Maintenance Activities Inadequate Servicing Of Equipment*

Vehicle Loads Inadequate / Incomplete Maintenance Procedures*

Vehicle Impact (Road, Rail, Aircraft) Incorrect Operation Of Control And Protective Equipment*

Excessive Backfill (External Load) Incorrect Pigging Operation*

Corrosion Incorrect Valve Operating Sequence*

Bacterial Corrosion Maintenance Actions Contrary To Procedures*

Environmental SCC Fatigue From Pressure Cycling

External Corrosion Construction Defects

Internal Corrosion Undetected Or Unreported Damage To The Pipe, Coating Or Equipment*

Stray Current Corrosion Undetected Or Unreported Critical Weld Defects*

Stress Corrosion Cracking Failure To Install The Specified Materials Or

Equipment*

Internal Erosion Failure To Install Equipment Using The Correct Procedures Or Materials*

Other Failure To Install Equipment In Accordance With Specified Design*

Failure To Install Pipeline In Specified Location Or In A Specified Manner*

Inadequate Testing Of Materials To Ensure Defects Have Been Detected Prior To Hand Over*

* Most likely will be non‐locational threats


AS2885 SMS WORKSHOP GUIDE WORDS


Rev 0 R-PI-453 3

Design Defects Material Defects

External Loads – Rail Incorrectly Identified Components*

External Loads – Vehicle Manufacturing Defect*

Temperature Exceeds Design* Under Strength Pipe*

Temperature Less Than Design* Insufficient Inspection And Testing To Confirm Acceptability Of Material And Equipment

Specify Incorrect Test Procedures* Incorrect Specification, Supply, Handling, Storage Or Installation Which Allows Faults To Remain Undetected Or Damages The Item

Stresses Exceed Allowable* Other

Inadequate ITP Plan To Confirm Acceptability Of Material*

Intentional Damage

Failure To Specify Required Material Characteristics*

Malicious Damage*

Incorrect Material Specified* Sabotage*

Incorrect Diameter* Terrorism*

Design Pressure Incorrect* Other

Failure To Define Correct Range Of Operating Conditions*

Other Threats

Other Mine Subsidence

Seismic Surveys*

* Most likely will be non‐locational threats




WORKSHOP REPORT


APPENDIX E: RISK ASSESSMENT MATRIX

AS2885.6-2018 Risk Assessment Matrix


AS2885.6‐2018 RISK MATRIX

Catastrophic Major Severe Minor Trivial

Multiple fatalities result

One or two fatalities; or several

people with life-threatening injuries

Injury or illness requiring hospital

treatment

Injuries requiring first aid treatment

Minimal impact on health & safety

Fre

qu

ent

Expected to occur once per year or more.

Extreme Extreme High Intermediate Low

Occ

asio

nal

May occur occasionally in the life of the pipeline

Extreme High Intermediate Low Low

Un

like

ly

Unlikely to occur within the life of the pipeline, but possible.

High High Intermediate Low Negligible

Rem

ote Not anticipated for this

pipeline at this location.High Intermediate Low Negligible Negligible

Hyp

oth

etic

al

Theoretically possible but would only occur under extraordinary circumstances

Intermediate Low Negligible Negligible Negligible

No loss or restriction of

pipeline supply

Environment

Widespread or significant societal

impact, such as complete loss of supply to a major

city for an extended time

(more than a few days)

Widespread societal impact such as loss of

supply to a major city for a short time (hours to days) or to a localized area for a longer time

Localized societal impact or short-

term supply interruption (hours)

Interruption or restriction of supply

but shortfall met from other sources

Intermediate Repeat threat identification and risk evaluation processes to verify the risk estimation; determine the accuracy and uncertainty of the

estimation. Where the risk rank is confirmed to be "intermediate", where reasonably practicable modify the threat, the frequency or the

consequence to reduce the risk rank to "low" or "negligible".

Where it is not reasonably practicable to reduce the risk rank to "low" or "negligible", action shall be taken to:

(a) remove threats, reduce frequencies and/or reduce severity of consequences to the extent practicable; and

(b) Formally demonstrate ALARP

For an in‐service pipeline, the reduction to "low" or "negligible" or demonstration of ALARP shall be completed as soon as possible. Risk

reduction or demonstration of ALARP should be completed within a few months.Low

Impact widespread; viability of

ecosystems or species affected; or

permanent major changes

Major impact well outside Pipeline

Corridor or site; or long-term severe

effects; or rectification difficult

Localised impact, substantially

rectified within a year or so

Impact very localized and very

short-term (weeks), minimal

rectification

No effect; or minor impact rectified

rapidly (days) with negligible residual

effect

FR

EQ

UE

NC

YC

ON

SE

QU

EN

CE

S

Typical Severity Classes

People

Supply

NOTE: Appendix G in AS2885.6:2018 provides guidance on assessment of consequence severities

Risk Rank Risk Treatment Actions

Extreme Modify the threat, the frequency or the consequences so that the risk rank is reduced to Intermediate or lower.

For an in‐service pipeline, the risk shall be reduced immediately.

High Modify the threat, the frequency or the consequences so that the risk rank is reduced to Intermediate or lower.

For an in‐service pipeline, the risk shall be reduced as soon as possible. Risk Reduction should be completed within a timescale of not more than

a few weeks.

Determine the management plan for the threat to prevent occurrence and to monitor changes that could affect the classification

Negligible Review at the next relevant SMS (for periodic operational review, Land Use Change, Encroachment, or change of operating conditions)
