Date   30 November 1998

TPA Service Envelope Agreement
Transmission Pipelines Australia (Assets) Pty Ltd
ACN 079 136 413
Transmission Pipelines Australia Pty Ltd
ACN 079 089 268

and
Victorian Energy Networks Corporation

101  Collins  Street  Melbourne   Victoria   3000   Australia
GPO  Box  128A  Melbourne  3001
Telephone  (03)  9288 1234  Facsimile  (03)  9288 1567  DX  240  Melbourne
Reference:  SET C/983240100
MELBOURNE     SYDNEY     PERTH     CANBERRA     BRISBANE     SINGAPORE     HANOI     HO CHI MINH CITY
CORRESPONDENT   OFFICE   IN   JAKARTA

Liability is limited by the Solicitors Scheme under the Professional Standards Act 1994 (NSW)

Table of contents
Clause	Page
1 Definitions and Interpretation	
1.1 Definitions	
1.2 Interpretation	
2 Term	
3 TPA Service Envelope	
3.1 The Gas Transmission System	
3.2 Specification of the TPA Service Envelope	
3.3 Effect of Expansions and/or Extensions	
3.4 Authorised MDQ	
3.5 Effect of maintenance on TPA Service Envelope	
4 TPA Service Envelope Obligations	
5 Matters requiring agreement by the parties	
5.1 Effect of Changes to the Gas Transmission System and the TPA Service Envelope Capacity	
5.2 TPA’s contribution to uplift payments	
5.3 Allocation of Authorised MDQ	
5.4 Failure to agree	
5.5 Effect of parties’ agreement	
6 Working Groups	
6.1 Facilitation of agreement by Working Group	
6.2 Resolution by Independent Expert	
6.3 Failure to agree	
6.4 Appointment of Working Groups	
6.5 Role of Working Group	
6.6 Appointment of Independent Expert	
6.7 Role of Independent Expert	
7 Maintenance by TPA	
8 VENCorp Obligations	
8.1 Performance of Tariffed VENCorp Services	
8.2 Reports	
9 Operation of compressors and custody transfer meters	
10 Insurances	
10.1 Current insurance	
10.2 TPA and VENCorp to insure	
10.3 VENCorp to insure	
10.4 Insurance claims procedure	
11 Payment	
11.1 Payment of Tariffed Transmission Service Charges to TPA	
11.2 Billing of Tariffed Transmission Services	
11.3 Charges for Tariffed Transmission Services	
11.4 Confidentiality of charges	
11.5 Conduct under Gas Transportation Deed	
12 Data	
12.1 Unverified metering data	
12.2 Verified metering data	
12.3 Provision of Metering data to TPA	
12.4 Gas flow data at Connection Points	
12.5 Operational data	
13 Intellectual property	
14 Emergencies	
15 Environment and occupational health and safety	
15.1 Compliance with environmental laws	
15.2 Compliance with occupational health and safety laws	
16 Force Majeure	
16.1 General position	
16.2 Notification to other parties	
16.3 Industrial disturbance	
16.4 Qualification	
17 Remedies	
17.1 Material Breach	
17.2 Financial Default	
17.3 Cure	
18 Ongoing application of Agreement	
18.1 Parties must agree	
18.2 Failure to reach agreement	
18.3 Amendment of Agreement	
18.4 Change to Regulatory Instrument	
19 Disputes	
20 Termination	
20.1 Termination of Agreement	
20.2 After termination	
21 Confidentiality	
22 Notices	
22.1 How notices may be given	
22.2 When notice taken as given	
22.3 Change of address or fax number	
23 Assignment	
23.1 Assignment generally	
23.2 Transfer  by State entity	
23.3 Assignment not a restriction on securities	
24 Change in taxes	
25 Relationship between parties	
25.1 No partnership or fiduciary relationship	
25.2 Joint and several liability of TPA	
26 General	
26.1 Approvals and consents	
26.2 Costs and expenses	
26.3 Governing law and jurisdiction	
26.4 Waiver	
26.5 Further action	
26.6 Whole agreement	
26.7 Unenforceable provision	
26.8 Counterparts	
26.9 Survival of provisions	
26.10 Separate obligations and expenses	
26.11 Settlement of claims	
26.12 Specific performance	
Schedule 1 Facilities and other matters relevant to Gas Transmission System	
Schedule 2 Applicable Operating Conditions	
Schedule 3 Gas Transportation Services	
Schedule 4 TPA Data Requirements	

Attachment 1  Acknowledgment

This TPA Service Envelope Agreement
is made on                                               between the following parties:

1.	Transmission Pipelines Australia Pty Ltd
ACN 079 089 268
of 180 Greens Road, Dandenong, Victoria
(TPA)
2.	Transmission Pipelines Australia (Assets) Pty Ltd
ACN 079 136 413
of 180 Greens Road, Dandenong, Victoria
(TPA Assets)
3.	Victorian Energy Networks Corporation
of 433 Smith Street, North Fitzroy, Victoria
(VENCorp)

Recitals
A.	TPA Assets owns the Gas Transmission System and TPA leases the Gas Transmission System from TPA Assets.
B.	VENCorp is established under the Act, among other things: 
(a)	to control the security and operation of the Gas Transmission System; and 
(b)	to operate the Market under the MSO Rules.
C.	The MSO Rules provide:
(a)	in clause 5.3.1(a), that TPA Assets, TPA and VENCorp must enter into a service envelope agreement to specify the capacity of TPA’s pipelines available for use by VENCorp under various operating conditions, and to provide for the Gas Transportation Services to be provided by TPA to VENCorp;
(b)	in clause 5.3.3, a process to be followed by TPA and VENCorp to agree the amount of Authorised MDQ which may be made available as a consequence of an Expansion and/or Extension which has the effect of  increasing the capacity of the Gas Transmission System; and
(c)	in the definition of Service Envelope Agreement contained in chapter 11, that the Service Envelope Agreement may also provide for other matters.
D.	TPA Assets, TPA and VENCorp have agreed that the definition of the TPA Service Envelope Capacity is based on the facilities which comprise the Gas Transmission System and the capacity associated with those facilities.
E.	This Agreement replaces the TPA Service Envelope Agreement and the Pipeline Systems Deed, both of which were entered into by the parties on 11 December 1997.

The parties agree as follows:
1	Definitions and Interpretation
1.1	Definitions
In this Agreement:
Access Arrangement means an arrangement for access to pipelines by third parties lodged with the Regulator under section 2.1 of the Access Code.
Access Code means the Victorian Third Party Access Code for Natural Gas Pipeline Systems or the National Third Party Access Code for Natural Gas Pipeline Systems, whichever is applicable at the relevant time. 
Act means the Gas Industry Act 1994 (Vic).
Annual Maintenance Schedule means a maintenance schedule prepared under clause 7.
Authorised MDQ has the same meaning as in the MSO Rules.
Award means a decision of the Dispute Resolution Panel made under clause 19.
Benchmark Distribution Unaccounted For Gas has the same meaning as in the Distribution System Code lodged with the Office of the Regulator-General on 3 November 1997.
Business Day has the same meaning as in the MSO Rules.
Confidential Information means all information disclosed by any party under this Agreement which is notified by that party in writing to the other parties as being confidential information prior to its disclosure.
Connection Point has the same meaning as in the MSO Rules.
Dispute Resolution Panel means a panel appointed under clause 19(a)(1).
Dispute Resolution Procedure means the dispute resolution procedure set out in clause 19.
Expansion has the same meaning as when used in the Tariff Order.
Extension has the same meaning as when used in the Tariff Order.
Financial Default means failure by a party to pay any amount under this Agreement to another party when due.
Financial Year has the same meaning as in the MSO Rules.
Force Majeure means an event or cause beyond the reasonable control of the party claiming force majeure including:
(a)	act of God, lightening, storm, flood, fire, earthquake, volcanic eruption or explosion;
(b)	act of public enemy, war (declared or undeclared), sabotage, blockade, revolution, riot, insurrection, civil commotion;
(c)	prolonged major power, gas or water shortage; and
(d)	any like or analogous event.
Gas has the same meaning as in the Act.
Gas Transmission System has (subject to clause 3.1) the same meaning as in the Act.
Gas Transportation Deed means a deed of that name made between VENCorp and a Market Participant for the payment of transmission charges.
Gas Transportation Services means the services set out in Schedule 3.
GJ means gigajoules and has the meaning ascribed in clause 10.3 of the MSO Rules. 
Good Practice means the exercise of that degree of skill, diligence and foresight consistent with the safe, secure and reliable operation of the Gas Transmission System and the facilities which comprise the Gas Transmission System and prudent practices that reasonably would be accepted by a significant proportion of the providers of transmission pipeline services in Australia and includes, without limitation, the establishment and maintenance of an asset management and maintenance system.
GTC means Gas Transmission Corporation established under Division 1 of Part 2 of the Act.
Independent Expert means a person appointed under clause 6.6.
Insolvency Event means that an order is made by a Court under section 459B of the Corporations Law that a body corporate be wound up in insolvency or a body corporate resolves to wind itself up or to dissolve or any like or analogous events.
LNG means liquefied natural gas.
Market has the same meaning  as in the MSO Rules.
Market Participant has the same meaning as in the MSO Rules.
Material Breach means a breach by a party having, or reasonably expected to have, a material adverse effect on any other party’s ability to: 
(a)	obtain and enjoy its primary rights and benefits under this Agreement; or 
(b)	comply with any regulatory, legislative, licence or permit obligation,
but does not include a failure by TPA to fulfil the TPA Service Envelope Obligations.
Monthly Maintenance Schedule means a maintenance schedule that is prepared under clause 7(d) and issued every month in respect of the ensuing three month period.
MSO Rules means the rules made under section 48N of the Act.
Murray Valley Extension means the Murray Valley Pipeline as set out in the Principal Transmission System Access Arrangement.
Murray Valley Pipeline means the pipeline from Chiltern to Rutherglen to Koonoomoo, being a gas transmission pipeline owned by TPA Assets and connected to the Gas Transmission System at Chiltern.
Operating Requirements means the operating requirements of VENCorp as provided for in this Agreement.
Pipeline Systems Deed means the deed dated 11 December 1997 between the parties as amended from time to time, in relation to the ownership, use, operation and maintenance of the Gas Transmission System. 
Pipeline Title means permits to own and use, licences to construct and operate, and licences to operate only, a pipeline issued under the Pipelines Act 1967 (Vic) and which are held by TPA Assets.
Principal Transmission System Access Arrangement means the Access Arrangement of that name of TPA and TPA Assets.
Regulator means the Australian Competition and Consumer Commission.
Regulatory Instrument means any Act, law, code, rule, order or sub-code regulating the gas industry in Victoria, whether made under the Act or other applicable legislation having jurisdiction over the relevant party, and includes (for the avoidance of doubt) any such instrument made in any other jurisdiction which is applicable to the Gas Transmission System.
Safety Case is the safety case referred to in Part 3 Division 2 of the Gas Safety Act 1997 (Vic).
Service means a service to be provided under this Agreement or any other service in respect of the Gas Transmission System that a party may agree to provide to another party under this Agreement. 
Tariff Order means the Victorian Gas Industry Tariff Order.
Tariffed Transmission Service has the same meaning as in the Tariff Order.
Tariffed VENCorp Service has the same meaning as in the Tariff Order.
Tariff V Customer means a person who receives gas at a Tariff V Withdrawal Point.
Tariff V Withdrawal Point has the same meaning as in the MSO Rules.
TPA Extensions/Expansions Policy means the policy of that name contained in the Principal Transmission System Access Arrangement.
TPA Service Envelope Capacity means the capacity associated with some or all of the Gas Transmission System as set out in Schedule 1. 
TPA Service Envelope Obligations means the obligations of TPA specified in clause 4.
Trading Interval has the same meaning as in the MSO Rules.
Transmission Delivery Tariff D has the same meaning as in the MSO Rules.
Transmission Zone has the same meaning as in the Tariff Order.
Working Group means the working group appointed under clause 6.4.
1.2	Interpretation
In this Agreement, headings are only for convenience and do not affect interpretation and, unless the context requires otherwise:
(a)	words in the singular include the plural and the other way around;
(b)	words of one gender include any gender;
(c)	if a word or phrase is defined, another grammatical form of that word or phrase has a corresponding meaning;
(d)	an expression indicating a natural person includes a company, partnership, joint venture, association, corporation or other body corporate and a governmental agency;
(e)	a reference to a party to this Agreement includes that party's executors, administrators, successors and permitted assigns;
(f)	a promise or agreement by 2 or more persons binds them jointly and individually;
(g)	a promise or agreement in favour of 2 or more persons is for the benefit of them jointly and individually;
(h)	a reference to a clause, party, annexure, exhibit or schedule is a reference to a clause of, and a party, annexure, exhibit and schedule to, this Agreement and a reference to this Agreement includes any annexure, exhibit or schedule;
(i)	a reference to a thing (including, but not limited to, a right) includes any part of that thing;
(j)	a reference to a right includes a remedy, power, authority, discretion or benefit; 
(k)	a reference to legislation includes any amendment to that legislation, any consolidation or replacement of it, and any subordinate legislation made under it;
(l)	a reference to an agreement other than this Agreement includes an undertaking, agreement, deed or legally enforceable arrangement or understanding, whether or not in writing;
(m)	a reference to a document includes all amendments or supplements to, or replacements or novations of, that document;
(n)	examples are descriptive only and not exhaustive;
(o)	a provision of this Agreement must not be construed against a party solely because the party was responsible for preparing this Agreement or that provision;
(p)	a reference to a body, other than a party to this Agreement (including, but not limited to, an association, authority, corporation, body corporate or institution), whether statutory or not:
(1)	which ceases to exist;
(2)	is reconstituted, renamed or replaced; or
(3)	whose powers or functions are transferred to another body,
is a reference to the body which replaces it or which serves substantially the same purposes or has the same powers or functions;
(q)	if a period of time is specified and dates from a given day or the day of an act or event, it is to be calculated exclusive of that day;
(r)	where the day on or by which something must be done is not a Business Day, that thing must be done on or by the next Business Day; and
(s)	a reference to a Regulatory Instrument or an agreement  is a reference to that Regulatory Instrument or agreement (as the case may be) as amended, varied, repealed and revoked from time to time.
2	Term
Subject to clauses 18 and 20, this Agreement continues until 11 December 2007.
3	TPA Service Envelope
3.1	The Gas Transmission System 
(a)	For the avoidance of doubt, the Gas Transmission System includes:
(1)	subject to clause 3.1(b), Extensions and Expansions to the Gas Transmission System which are included in the Gas Transmission System by operation of and in accordance with the TPA Extensions/Expansions Policy; and
(2)	any pipeline, system of pipelines or pipeline facility that is the subject of an approved connection under section 5(3) of the Act between TPA and/or TPA Assets, on the one hand, and VENCorp, on the other hand, other than any pipeline, system of pipelines or pipeline facility that becomes part of the Gas Transmission System under clause 3.1(a)(1). 
(b)	If an Extension or Expansion is included in the Gas Transmission System under clause 3.1(a)(1), then for the purposes of section 5(3) of the Act, TPA and VENCorp must execute an acknowledgment in the form of Attachment 1 whereby it is agreed that the Extension or Expansion is an approved connection under section 5(3) of the Act.
(c)	Also for the avoidance of doubt:
(1)	the pipelines more particularly described in the Order made under section 5(4) of the Gas Industry Act on 9 December 1997 and published in the Victorian Government Gazette on 11 December 1997 (page 3455), otherwise known as the Western Transmission System, are agreed not to be part of the Gas Transmission System;
(2)	the Extensions and Expansions more particularly known as the Murray Valley Extension, the Corio loop and the Brooklyn compressors, are agreed to be part of the Gas Transmission System and accordingly the parties hereby agree that those Extensions and Expansions are approved connections for the purposes of section 5(3) of the Act.
(d)	Nothing in clause 3.1(c) prevents the parties from agreeing, pursuant to section 5 of the Act or otherwise, that
(1)	the Western Transmission System; or
(2)	any Extension linking the Principal Transmission System (as more particularly defined in the Principal Transmission System Access Arrangement) with the Western Transmission System; or
(3)	any other Extension or Expansion not forming part of the Principal Transmission System,
is to become part of the Gas Transmission System.
(e)	TPA must do all things necessary to ensure that:
(A)	the Corio loop; and
(B)	the Brooklyn compressors,
are developed and included in the Gas Transmission System in accordance with clause 3.1(c)(2) within the initial regulatory period ending on 31 December 2002 and if:
(C)	the Corio loop does not become part of the Gas Transmission System in accordance with clause 3.1(c)(2) by 31 December 2002, TPA acknowledges and agrees that it will submit to the Regulator revisions to the Principal Transmission System Access Arrangement seeking a revision to the Reference Tariffs to reflect the removal from TPA’s capital base of the Corio loop; and
(D)	the Brooklyn compressors do not become part of the Gas Transmission System in accordance with clause 3.1(c)(2) by 31 December 2002, TPA acknowledges and agrees that it will submit to the Regulator revisions to the Principal Transmission System Access Arrangement seeking a revision to the Reference Tariffs to reflect the removal from TPA’s capital base of the Brooklyn compressors.
(f)	In this clause “Corio loop” means and includes the Brooklyn loop more particularly described in Schedule 1 and “Brooklyn compressors” means and includes the Brooklyn compressor upgrade more particularly described in Schedule 1.
(g)	Schedule 1 sets out the facilities which comprise the Gas Transmission System, and also the operating constraints and availabilities affecting or relevant to those facilities and to the TPA Service Envelope Capacity.
(h)	The parties must update Schedule 1 as and when changes occur to the facilities comprising the Gas Transmission System, operating constraints, availabilities or other matters relevant to the Gas Transmission System.
(i)	Notwithstanding any other provisions of this clause 3.1, if TPA and/or TPA Assets ceases to lease or own (as the case may be) the entirety of the Gas Transmission System, the parties must amend this Agreement to reflect that change and if the parties are unable to agree to those amendments, the Dispute Resolution Procedure is to apply.
3.2	Specification of the TPA Service Envelope
(a)	Subject to clauses 3.3 and 3.5, the TPA Service Envelope Capacity is the available capacity under applicable operating conditions (if any) associated with the pipelines and other facilities which comprise the Gas Transmission System from time to time as agreed between TPA and VENCorp in accordance with clause 5.1 and as set out in Schedule 2 but only if and to the extent that Authorised MDQ has been allocated by VENCorp in respect of that available capacity including but not limited to any deemed allocations of Authorised MDQ to Tariff V Customers.
(b)	If there are no or inadequate descriptions of operating conditions provided in Schedule 2, the parties must have regard to the following matters to determine the applicable operating conditions in respect of a facility which comprises the Gas Transmission System:
(1)	whether the facility is operating or not;
(2)	existing actual operating conditions affecting the facility, including without limiting the generality of this clause 3.2(b)(2), the following parameters each of which can individually affect the operation of the Gas Transmission System:
(A)	gas quality and the heating value (by zone);
(B)	the configuration of linepack in the Gas Transmission System at the beginning of the day;
(C)	the scheduling of inc/dec offers under the MSO Rules;
(D)	the existence and effect of curtailment and emergency activities;
(E)	the hourly profiles of pressure and flows of gas at each injection point on the Gas Transmission System;
(F)	the hourly flows and/or pressures of gas at key delivery points on the Gas Transmission System which are selected by agreement between TPA and VENCorp as being appropriate for the purposes for which the common computer models referred to in clause 5.2(d) are to be used; and
(G)	any other variable that is not a fixed parameter already included as part of the common computer models referred to in clause 5.2(d);
(3)	the requirements of Good Practice in relation to equipment which is the same or similar to the facility;
(4)	the relevant manufacturer’s guidelines for operating equipment which is the same or similar to the facility;
(5)	the performance specifications applicable to equipment which is the same or similar to the facility; and
(6)	the operating requirements of other facilities which are integrated with the facility.
(c)	If the parties are unable to agree the operating conditions which are applicable to any one or more of the facilities comprising the Gas Transmission System, the parties may refer that matter to a Working Group to facilitate agreement between the parties in accordance with clause 6.
3.3	Effect of Expansions and/or Extensions
If at any time during the term of this Agreement:
(a)	TPA Assets and/or TPA undertakes an Expansion and/or Extension that will become part of the Gas Transmission System; and
(b)	TPA and VENCorp are required to agree the effect on the TPA Service Envelope Capacity as a consequence of that Expansion and/or Extension to ensure that for the purposes of clause 5.3.1(a) of the MSO Rules there remains in force between them a valid service envelope agreement which accurately describes the available capacity of the Gas Transmission System, 
the parties must agree that effect in accordance with clause 5.1 of this Agreement (either with or without either facilitation by a Working Group or assistance from an Independent Expert) and the TPA Service Envelope Capacity is varied in accordance with that agreement.
3.4	Authorised MDQ
For the avoidance of doubt, in agreeing the TPA Service Envelope Capacity, including any effect on the TPA Service Envelope Capacity as a consequence of any Expansion and/or Extension, the parties will agree an associated amount of Authorised MDQ and may utilise the computer models referred to in clause 5.2(c) to enable them to do so.
3.5	Effect of maintenance on TPA Service Envelope
The capacity represented by a component of the Gas Transmission System which is not in service due to:
(a)	maintenance by TPA in accordance with a Monthly Maintenance Schedule approved by VENCorp under clause 7(d) as modified by any rescheduled maintenance during the relevant month in accordance with clauses 7(f) and (g); and/or
(b)	emergencies, emergency repairs or emergency maintenance being conducted, where those repairs or that maintenance are not attributable to a failure by TPA to:
(1)	undertake maintenance in accordance with a monthly maintenance schedule approved by VENCorp under clause 7(d); or
(2)	comply with the requirements of Good Practice,
is not included in the TPA Service Envelope Capacity for the period during which it is not in service due to such maintenance, emergency, emergency repairs or emergency maintenance.
4	TPA Service Envelope Obligations
(a)	Subject to clause 4(b), the obligations of TPA under this Agreement are to provide the Gas Transportation Services and make available the Gas Transmission System to VENCorp at all times during the term of this Agreement in accordance with the requirements of Good Practice. 
(b)	If TPA fails to comply with clause 4(a), then TPA’s liability is limited to the TPA Service Envelope Capacity, but in no circumstances is that liability to result in a payment by TPA or TPA Assets under clause 3.6.8(g) of the MSO Rules of more than either:
(1)	an amount which equates to no more than $20 per GJ (being the GJ per Trading Interval determined under clause 5.2(b) of this Agreement as representing the extent of a failure by TPA to fulfil the TPA Service Envelope Obligations); or
(2)	$1 million per calendar year,
whichever is the lower amount.
(c)	Subject to clause 4(a) and to TPA’s obligations under any applicable Regulatory Instrument, in making available the Gas Transmission System and providing the Gas Transportation Services, TPA must:
(1)	perform and discharge its obligations under any applicable Regulatory Instrument in a timely and efficient manner, including acting in accordance with any reasonable instruction by VENCorp;
(2)	act in a manner that will not preclude or materially adversely affect VENCorp’s ability to perform the Tariffed VENCorp Services;
(3)	upon becoming aware of any matter or thing which in TPA’s opinion materially adversely affects VENCorp’s ability to provide the Tariffed VENCorp Services, promptly inform VENCorp of that matter or thing;
(4)	provide all personnel, facilities, materials, equipment, spare parts, and other things reasonably required to fulfil the TPA Service Envelope Obligations; and
(5)	have reasonable regard to the Operating Requirements of VENCorp for the facilities comprising the Gas Transmission System.
5	Matters requiring agreement by the parties
5.1	Effect of Changes to the Gas Transmission System and the TPA Service Envelope Capacity
(a)	Subject to clause 5.4, if at any time:
(1)	TPA Assets and/or TPA undertakes or proposes to undertake an Expansion and/or Extension that will become part of the Gas Transmission System; or 
(2)	any other circumstance or event arises which causes a variation in the capacity of the facilities comprising the Gas Transmission System, including but not limited to a permanent change in operating conditions affecting the capacity of the facilities comprising the Gas Transmission System,
the extent to which that circumstance or event:
(3)	causes or is expected to cause a variation in the Gas Transmission System and the TPA Service Envelope Capacity; and
(4)	results in or is expected to result in additional or less Authorised MDQ being made available for allocation by VENCorp,
must be agreed by the parties, having regard to the nature of the circumstance or event, in accordance with this clause 5 as soon as practicable (and in any case no later than 10 Business Days or such other time as may be agreed between the parties) after notification of the circumstance or event.
(b)	Subject to clause 5.4, if a matter described in clause 5.1(a) arises, the parties must resolve the matter by agreeing:
(1)	subject to clause 5.1(c), the extent to which:
(A)	an Expansion and/or Extension; and/or
(B)	any other circumstance or event,
changes the capacity of the Gas Transmission System and the TPA Service Envelope Capacity; and
(2)	the amount of Authorised MDQ made available for allocation under clause 5.3.3 of the MSO Rules or withdrawn from being available (as the case may be) as a consequence of the change in the capacity of the Gas Transmission System, expressed in GJ.
(c)	In reaching a conclusion as to the matters set out in clauses 5.1(b)(1) and (2), the following matters must be taken into account:
(1)	the amount of Authorised MDQ which, at the relevant time, will already have been allocated;
(2)	the components of any Expansion and/or Extension that, at the relevant time, will already be subject to regulated charges under the Principal Transmission System Access Arrangement;
(3)	relevant design assumptions associated with the Expansion and/or Extension including without limitation the matters referred to in clauses 5.2.3(b), 5.2.4(b) and 5.2.4(d) of the MSO Rules;
(4)	changes in operating conditions affecting or expected to affect the capacity of the Gas Transmission System, including but not limited to permanent cessation of operation or de-rating or re-rating of any of the facilities comprising the Gas Transmission System;
(5)	the operational and technical requirements necessary for the safe and reliable operation of the Gas Transmission System including any relevant Expansion and/or Extension;
(6)	the economically efficient operation of the Gas Transmission System including any relevant Expansion and/or Extension; and
(7)	any other matters that the parties consider to be relevant.
5.2	TPA’s contribution to uplift payments
(a)	VENCorp will follow the procedures set out in this clause 5.2 before it makes a determination under clause 3.6.8(f)(1) of the MSO Rules as to the extent to which TPA has failed to fulfil the TPA Service Envelope Obligations.
(b)	Subject to clause 5.4, if at any time TPA or VENCorp or both need to determine the extent to which TPA has failed to fulfil the TPA Service Envelope Obligations, the parties must reach agreement as to the extent to which TPA has failed to fulfil the TPA Service Envelope Obligations, expressed in GJ per Trading Interval, in accordance with this clause 5.2.
(c)	If the parties need to determine the extent of any failure by TPA to fulfil the TPA Service Envelope Obligations under clause 5.2(b), then to the extent that any such determination is required to be translated from capacity into energy (measured in GJ) for the purposes of clause 3.6.8(g) of the MSO Rules, VENCorp and TPA must have regard to and utilise the computer models agreed between them under clause 5.2(d), to enable translations of that kind to be made.
(d)	Subject to clause 5.4, the parties must, immediately upon execution of this Agreement:
(1)	identify and attempt to agree a common computer model which can be used by them for the purposes of clause 5.2(c), which must be consistent with and take into account:
(A)	the TPA Service Envelope Obligations; and
(B)	matters of a kind identified in clauses 5.2.3(c), 5.2.4(b) and 5.2.4(d) of the MSO Rules;
and must from time to time:
(2)	update those computer models to take account of:
(A)	changes in the Gas Transmission System and the TPA Service Envelope Capacity as agreed under clause 5.1;
(B)	changes in operating conditions affecting the operation and/or capacity of the facilities comprising the Gas Transmission System;
(C)	changes in the number of customers who withdraw gas from the facilities comprising the Gas Transmission System;
(D)	changes to the matters of a kind identified in clauses 5.2.3(c), 5.2.4(b) and 5.2.4(d) of the MSO Rules; and
(E)	any other matter the parties consider to be relevant to the accurate operation of the model.
(e)	The parties must treat the computer models referred to in clause 5.2(d) and the application of those models as Confidential Information and must not disclose any part of those models or any information in relation to those models except:
(1)	to the extent that such disclosure may reasonably be necessary to apply the models for the purposes expressly contemplated by this clause 5.2; or
(2)	with the consent of the other party, which consent must not unreasonably be withheld.
5.3	Allocation of Authorised MDQ
(a)	Subject to clause 5.3(b), if at any time VENCorp proposes to allocate Authorised MDQ under clause 5.3.4(d) of the MSO Rules (other than in circumstances in which the parties have agreed that Authorised MDQ is or will become available under clause 5.1 of this Agreement), then to the extent that it is not inconsistent with the MSO Rules for VENCorp to do so and subject to clause 5.4, VENCorp and TPA must reach agreement as soon as practicable in accordance with this clause 5.3 to determine whether there is sufficient available Authorised MDQ to allow that proposed allocation to be made and if so, the amount of such Authorised MDQ which is available for allocation.
(b)	This clause 5.3 does not apply to the initial allocation of Authorised MDQ by VENCorp under clause 5.3.2 of the MSO Rules.
(c)	In reaching a conclusion as to the matters set out in clause 5.3(a), the following matters must be taken into account:
(1)	the amount of Authorised MDQ already allocated, or agreed by the parties to be available for allocation;
(2)	any of the matters referred to in clause 5.1(c) to the extent that the parties agree the matter is relevant; and
(3)	any other matters that the parties consider to be relevant.
5.4	Failure to agree
If the parties are unable to agree any matter under this clause 5, the parties may refer that matter for resolution in accordance with clause 6.
5.5	Effect of parties’ agreement
(a)	If under clause 5.1:
(1)	the parties agree (either with or without facilitation by a Working Group);
(2)	an Independent Expert assists the parties to resolve; or
(3)	a Dispute Resolution Panel makes an Award,
that a circumstance or event has or will upon commencement of operation of the relevant Expansion and/or Extension cause a variation in the Gas Transmission System and the TPA Service Envelope Capacity, the Gas Transmission System and the TPA Service Envelope Capacity is to be varied accordingly with effect from the date on which the variation becomes effective and TPA and VENCorp must amend this Agreement, to the extent necessary to reflect the variation in accordance with that agreement, resolution or Award.
(b)	If under clause 5.1:
(1)	the parties agree (either with or without facilitation by a Working Group);
(2)	an Independent Expert assists the parties to resolve; or
(3)	a Dispute Resolution Panel makes an Award,
that additional Authorised MDQ is or will be made available as a consequence of an Expansion and/or Extension, VENCorp must allocate additional Authorised MDQ if and to the extent that the additional Authorised MDQ is made available as a consequence of that Expansion and/or Extension, in accordance with clause 5.3.4 of the MSO Rules and with effect from the date on which that additional Authorised  MDQ becomes available, provided that VENCorp must not allocate Authorised MDQ in excess of the amount of Authorised MDQ agreed or resolved under clause 5.3 to have been made available as a consequence of that Expansion and/or Extension. 
(c)	If under clause 5.3:
(1)	the parties agree (either with or without facilitation by a Working Group); or
(2)	an Independent Expert assists the parties to resolve,
that an amount of Authorised MDQ is available for allocation, VENCorp must allocate Authorised MDQ in accordance with that agreement or resolution (as the case may be) and for the avoidance of doubt, this clause 5.5(c) does not apply in the case of deemed allocations of Authorised MDQ for Tariff V Customers arising under clause 5.3.4(a) of the MSO Rules.
(d)	If at any time:
(1)	the parties reach agreement (either with or without facilitation by a Working Group); or
(2)	an Independent Expert assists the parties to make a resolution; or
(3)	a Dispute Resolution Panel makes an Award,
in respect of a matter which has the effect of changing a matter or thing contemplated by this Agreement, the parties must amend this Agreement to appropriately reflect that agreement, resolution or Award.
6	Working Groups
6.1	Facilitation of agreement by Working Group
The parties may refer any matter which requires agreement between the parties under clause 3.2(b) or clause 5 to a Working Group to facilitate such agreement between the parties.
6.2	Resolution by Independent Expert
(a)	After referring a matter described in clause 5.1 to a Working Group to facilitate agreement between the parties, the parties may seek alternative dispute resolution of that matter  by an Independent Expert in accordance with clause 6.6 .
(b)	If the parties are unable to agree on any matter described in clauses 3.2(b), 5.2 or 5.3 with the facilitation of a Working Group, that matter must be referred to an Independent Expert in accordance with clause 6.6.
6.3	Failure to agree
If the parties are unable to reach agreement on a matter described in clause 5.1, either with or without facilitation of agreement by a Working Group or an Independent Expert, the parties acknowledge and agree that the matter is then a dispute between them which may be referred for resolution in accordance with the Dispute Resolution Procedure.
6.4	Appointment of Working Groups
(a)	The chief executive officers of VENCorp and TPA must appoint one or more Working Groups as soon as practicable after execution of this Agreement to review from time to time or deal with any matter required to be referred for alternative dispute resolution in accordance with clauses 3.2(c) or 5.
(b)	Each Working Group appointed under clause 6.4(a) is to comprise:
(1)	2 persons appointed by VENCorp; and
(2)	2 persons appointed by TPA.
(c)	Any person who has served as a member of a Working Group may be appointed to serve as a member of any subsequently appointed Working Group. 
6.5	Role of Working Group
(a)	The matter to be resolved by a Working Group appointed under clause 6.4, must be referred to that Working Group as soon as practicable after the Working Group is appointed.
(b)	If a matter is referred to the Working Group under clause 6.5(a), the Working Group must:
(1)	resolve the matter by unanimous agreement of the members of the Working Group within a reasonable time of the date on which the relevant matter was referred to it, given the nature of the matter; and
(2)	consult with such relevant persons, including suitably qualified experts, as the Working Group in its absolute discretion decides may assist the Working Group to resolve the matter.
6.6	Appointment of Independent Expert
(a)	If a Working Group is unable to resolve a matter referred to it under clauses 3.2(c) or 5:
(1)	the matter must immediately be referred to a suitably qualified Independent Expert; and
(2)	the chief executive officers of TPA and VENCorp must appoint such a suitably qualified Independent Expert to resolve the matter; and
(3)	if the chief executive officers are unable to agree on the expert to be appointed, they must ask the Regulator to appoint a suitably qualified Independent Expert to resolve the matter.
(b)	The chief executive officers must, or (as the case may be) must ask the Regulator to:
(1)	appoint a suitably qualified Independent Expert under clause 6.6(a) on such terms and conditions as are considered appropriate by the person or persons making the appointment; and
(2)	use reasonable endeavours to ensure that the Independent Expert has experience which is appropriate in the circumstances, having regard to the nature of the matter to be resolved.
(c)	Subject to clause 6.6(b), an Independent Expert appointed to resolve a matter under clause 6.6(a) may be appointed to resolve any number of subsequent matters.
(d)	The costs of an Independent Expert appointed under clause 6.6(a) are to be shared equally between TPA and VENCorp.
6.7	Role of Independent Expert
(a)	For the purposes of clause 5.1 the Independent Expert will act as mediator.
(b)	For the purposes of clauses 3.2(c), 5.2 and 5.3, the Independent Expert will act as arbitrator and the Commercial Arbitration Act (Vic) 1984 does not apply.
7	Maintenance by TPA
(a)	By no later than March each year or such other date as the parties agree, TPA must:-
(1)	prepare and issue to VENCorp a draft Annual Maintenance Schedule for the assets and associated equipment which form the Gas Transmission System, to apply for the next Financial Year; and
(2)	convene a meeting with VENCorp to discuss the draft Annual Maintenance Schedule.
(b)	TPA must amend the draft Annual Maintenance Schedule to take into account any reasonable changes requested by VENCorp in the meeting referred to in clause 7(a)(2) provided that TPA is not obliged to reschedule any item of maintenance to any other Financial Year.
(c)	For the avoidance of doubt, the changes which may be requested by VENCorp under clause 7(b) may include but are not limited to changes in the timing of maintenance.
(d)	On the last Business Day of every month or such other date as the parties agree, TPA must prepare and issue to VENCorp a Monthly Maintenance Schedule for the month which commences immediately after the end of the third full month after the day on which that Monthly Maintenance Schedule was issued and that Monthly Maintenance Schedule must, so far as reasonably practicable, be consistent with the draft Annual Maintenance Schedule amended in accordance with clause 7(b).
(e)	Each Monthly Maintenance Schedule must be approved by VENCorp at least 2 months prior to the first day of the month to which it relates or such other date as the parties agree, and VENCorp must not unreasonably withhold that approval.
(f)	TPA must use its reasonable endeavours to undertake all maintenance scheduled in a Monthly Maintenance Schedule in the relevant month for which it is scheduled, provided that if TPA fails for any reason to conduct an item of maintenance in the month in which it has been scheduled, TPA must:
(1)	notify VENCorp that the item of maintenance was not undertaken in the relevant month for which it was scheduled in the Monthly Maintenance Schedule; and
(2)	undertake that maintenance in the following month,
and, for the avoidance of doubt, TPA may undertake an item of maintenance in the following month in accordance with clause 7(f)(2):
(3)	without the consent of VENCorp; and
(4)	only where that item of maintenance has not previously been deferred under clause 7(f)(2) until the month following the month in which it is scheduled in the Monthly Maintenance Schedule. 
(g)	Subject to clause 7(i), VENCorp may request a change to one or more items of maintenance included in the Monthly Maintenance Schedule prepared under clause 7(d), provided that:
(1)	VENCorp has not previously requested that item of maintenance to be rescheduled; and
(2)	VENCorp must nominate an alternative day or days for that item of maintenance to be undertaken which must be within 2 months of the month for which it was scheduled in the Monthly Maintenance Schedule or such other date as the parties agree.
(h)	If VENCorp requires an item of maintenance to be changed under clause 7(g), TPA must advise VENCorp if, in TPA’s reasonable opinion, that change may have the effect of jeopardising system security.
(i)	TPA must reschedule maintenance in accordance with a request by VENCorp under clause 7(g).
(j)	If VENCorp requests a change to the Monthly Maintenance Schedule under clause 7(g) within 1 month of the date on which that maintenance was scheduled to take place, then subject to clause 7(k), VENCorp must reimburse TPA for any direct costs or expenses incurred by TPA as a result of that change to the maintenance.
(k)	TPA must use its reasonable endeavours to mitigate any direct costs or expenses it may incur as a result of rescheduling any maintenance under clause 7(i).
(l)	Subject to this clause 7, VENCorp must permit TPA to undertake maintenance in accordance with the Monthly Maintenance Schedule.
(m)	Nothing in this clause 7 is to be read or construed as affecting TPA’s right and obligation to undertake emergency maintenance in accordance with the TPA Service Envelope Capacity.
8	VENCorp Obligations
8.1	Performance of Tariffed VENCorp Services
(a)	Subject to VENCorp’s obligations under any Regulatory Instrument, in providing the Tariffed VENCorp Services and performing its obligations under this Agreement, VENCorp must:
(1)	perform and discharge its obligations under any applicable Regulatory Instrument in a timely and efficient manner;
(2)	observe Good Practice;
(3)	operate the facilities which comprise the Gas Transmission System in a manner that will not preclude or materially adversely affect TPA’s ability to comply with the TPA Service Envelope Obligations;
(4)	upon becoming aware of any matter or thing which in VENCorp’s opinion materially adversely affects TPA’s ability to fulfil the TPA Service Envelope Obligations, promptly inform TPA or TPA Assets and, subject to its obligations under the MSO Rules, this Agreement and any applicable Regulatory Instrument, act in accordance with any reasonable instruction given by TPA;
(5)	use due care and act in a manner which is consistent with the maintenance of and furtherance of the legitimate business interests of TPA and TPA Assets and their investment in the facilities which comprise the Gas Transmission System;
(6)	comply with the policies of TPA and TPA Assets that are relevant to the operation of the Gas Transmission System as advised by TPA and TPA Assets from time to time, unless:
(A)	any change in policies would materially increase the cost of providing the Tariffed VENCorp Services; and
(B)	an amended charge for provision of that higher level of Tariffed VENCorp Services is not agreed;
(7)	provide all personnel, facilities, materials, equipment, spare parts and other things reasonably required to enable VENCorp to provide the Tariffed VENCorp Services;
(8)	have reasonable regard to the operating cost, maintenance and service life of each of the assets forming part of the Gas Transmission System; and
(9)	observe and comply with all asset maintenance procedures conducted in accordance with Good Practice and as notified to it by TPA from time to time.
(b)	VENCorp:
(1)	acknowledges that the provision of the Tariffed VENCorp Services and its obligations under this Agreement will permit and enable TPA to carry out and discharge the TPA Service Envelope Obligations; and
(2)	must use its reasonable endeavours to provide the Tariffed VENCorp Services in a manner which will not prevent TPA from carrying out and discharging the TPA Service Envelope Obligations. 
8.2	Reports
Subject to any obligation of confidence imposed on VENCorp, VENCorp must in a prompt and efficient manner prepare and provide to TPA such reports and operational information and documents relating to VENCorp’s provision of the Tariffed VENCorp Services and do such things as are set out in Schedule 3.
9	Operation of compressors and custody transfer meters
Subject to VENCorp’s obligations under clause 3.1.1 of the MSO Rules, VENCorp must operate the compressors:
(a)	in a manner which results in the efficient operation of those compressors; and
(b)	in accordance with clause 8.1(a)(8) of this Agreement.
10	Insurances
10.1	Current insurance
(a)	The parties acknowledge and confirm that they each presently have in place public liability insurance in the form and to the amounts set out in this clause.
(b)	The obligation of TPA to have the industrial special risks insurances current and in place commences on the date the State of Victoria ceases to beneficially or legally own or control a majority of the issued shares in TPA Assets.
10.2	TPA and VENCorp to insure
(a)	TPA must arrange and maintain for the duration of this Agreement with insurers or underwriters of good repute, minimum insurances agreed by the parties with respect to:
(1)	industrial special risks insurance of the facilities that comprise the Gas Transmission System for their full insurable value against damage or destruction caused by accident and any insurable risk commonly insured with respect to assets of a similar nature to the facilities that comprise the Gas Transmission System and against such other insurable risks as TPA may specify;
(2)	public liability insurance of $250 million or such other amount specified by TPA Assets from time to time to cover liability for loss, injury or damage to any person or property caused by, or arising out of, any action of, or omission by, TPA Assets, TPA or any officer, employee, agent, contractor or invitee of TPA Assets or TPA under, or in relation to, the facilities which comprise the Gas Transmission System; and
(3)	any insurance required by law.
(b)	TPA must pay all premiums in respect of the insurance it is obliged to maintain by due date to ensure no lapse in the policy.
(c)	TPA must provide annually to VENCorp and TPA Assets details of insurances maintained by it, provided that any material change must be notified to VENCorp at the time of such change.
(d)	Nothing in this Agreement affects the right of TPA, TPA Assets and VENCorp to arrange and maintain insurance with respect to the facilities which comprise the Gas Transmission System for its own account and at its own expense, provided that arranging and maintaining such insurance does not prejudice the arrangement or maintenance of insurances required under this Agreement.
10.3	VENCorp to insure
(a)	VENCorp must arrange and maintain for the duration of this Agreement with insurers or underwriters of good repute, minimum insurances agreed by the parties with respect to:
(1)	public liability insurance of $250 million and professional indemnity insurance of $50 million or such other amount specified by VENCorp from time to time to cover liability for loss, injury or damage to any person or property caused by, or arising out of, any action of, or omission by VENCorp or any officer, employee, agent, contractor or invitee of VENCorp under, or in relation to, the Gas Transmission System; and
(2)	any insurance required by law.
(b)	VENCorp must pay all premiums in respect of the insurance it is obliged to maintain by due date to ensure no lapse in the policy.
(c)	VENCorp must provide annually to TPA and TPA Assets details of insurances maintained by it, provided that any material change must be notified to TPA and TPA Assets at the time of such change.
(d)	Nothing in this Agreement affects the right of VENCorp, TPA and TPA Assets to arrange and maintain insurance with respect to the Gas Transmission System  for its own account and at its own expense, provided that arranging and maintaining such insurance does not prejudice the arrangement or maintenance of insurances required under this Agreement.
10.4	Insurance claims procedure
(a)	Each of TPA and VENCorp must follow insurance policies procedures and subject to those procedures:
(1)	immediately notify the other party in writing of any occurrence or incident likely to give rise to a claim under the policies referred to in this Agreement, or of any other matter or thing in respect of which notice should be given by TPA and VENCorp under those policies;
(2)	after having given the notification to the other party under clause 10.4(a)(1), give all such information and assistance to the other party, and to the insurer or underwriter as may reasonably be practicable in the circumstances; and
(3)	give to the other party, if requested, a Statutory Declaration as to any such occurrence or incident likely to give rise to a claim under the policies referred to in this clause 10, or of any other matter or thing in respect of which notice should be given by TPA or VENCorp under those policies.
(b)	Each of TPA and VENCorp must ensure that, in the event of a claim being made under the policies referred to in this clause 10, the other party is:
(1)	entitled to; and
(2)	is given a proper opportunity to,
make full representations to the insurer or underwriter as to the loss suffered by that other party.
(c)	Despite anything to the contrary in clauses 10.4(a) or (b), each of TPA and VENCorp may take immediate action to avoid loss of life or damage to property where that is reasonably necessary in the circumstances, and any such action will not prejudice the position of TPA and VENCorp under the policies referred to in this clause 10 in respect of that occurrence or incident.
11	Payment
11.1	Payment of Tariffed Transmission Service Charges to TPA
(a)	In consideration of TPA providing the Gas Transmission System and fulfilling the TPA Service Envelope Obligations in accordance with clause 4, VENCorp must direct (and maintain its direction to) each Market Participant to make payment of all charges in respect of Tariffed Transmission Services directly to TPA without deduction or set off.
(b)	TPA acknowledges and agrees that of those charges referred to in clause 11.1(a) payments received by TPA from Market Participants will be taken by TPA to be full and complete payment of VENCorp’s liability for payment of charges to TPA under this Agreement, and that VENCorp will have no liability to TPA for payment of charges.
(c)	TPA may initiate legal proceedings or alternative dispute resolution procedures in the name of VENCorp to recover charges from a Market Participant and upon receipt of a notice in which TPA advises of its intention to initiate such proceedings, VENCorp hereby:
(1)	authorises TPA to give instructions to solicitors or advisers for or on behalf of VENCorp without need to obtain any further authorisation from VENCorp, providing that TPA must keep VENCorp informed of the commencement and continuation of such proceedings; and
(2)	appoints TPA as VENCorp’s Attorney with such licence, power and authority as may be reasonably necessary for the purposes of such proceedings, including without limitation the licence, power and authority to:
(A)	take all such steps and proceedings;
(B)	do and execute all such acts, deeds and things;
(C)	commence, carry on and prosecute, settle and compromise all actions, suits and proceedings at law or in equity; and  
(D)	do, perform and execute all such further and other acts, deeds, matters and things,
as may reasonably be necessary,  expedient or desirable for the purposes of such proceedings.
(d)	TPA indemnifies and holds VENCorp harmless in respect of all costs, expenses and claims relating to any proceedings initiated by TPA under clause 11.1(c).
(e)	VENCorp acknowledges that all rights, title and interest in and to the billing system used to calculate payments and charges under this clause 11 are the property of TPA and in no circumstances will VENCorp assume or acquire any rights to the billing system notwithstanding VENCorp’s use of or interest in the billing system or the outcome of the application of the billing system under or for the purposes of this clause 11. 
11.2	Billing of Tariffed Transmission Services
(a)	TPA must, on behalf of VENCorp, prepare and send to each Market Participant periodic invoices for the Tariffed Transmission Services provided by VENCorp to that Market Participant under that Market Participant’s Gas Transportation Deed.
(b)	For the avoidance of doubt, notwithstanding that TPA must prepare and send periodic invoices under clause 11.2(a) on behalf of VENCorp, VENCorp is in no circumstances primarily responsible for or obliged to prepare or send such periodic invoices.
(c)	Invoices prepared by TPA under clause 11.2(a) must be calculated in accordance with the applicable Gas Transportation Deed.
(d)	TPA accepts responsibility for any inaccuracies in invoices prepared by TPA under this clause 11.2 and will not make any claim against VENCorp in respect of any such inaccuracies.
(e)	TPA must deal with all enquires from Market Participants in relation to invoices prepared under this clause 11.2.
11.3	Charges for Tariffed Transmission Services
(a)	VENCorp authorises TPA, on behalf of VENCorp, to negotiate with Market Participants in relation to the charges and other matters relevant to the Tariffed Transmission Services that are to apply to the provision by VENCorp of the Tariffed Transmission Services to those Market Participants.
(b)	TPA must notify VENCorp in writing of the charges and other matters relevant to the Tariffed Transmission Services applicable to each Market Participant for the provision by VENCorp of the Tariffed Transmission Services as negotiated under clause 11.3(a).
11.4	Confidentiality of charges
(a)	Without limiting clause 21, VENCorp must take all reasonable steps to ensure that details of charges notified by TPA under clause 11.3(b) are:
(1)	kept confidential;
(2)	not communicated to any other Market Participant; and
(3)	only communicated to those persons within VENCorp and their professional advisers who require access to this information for the purposes of management, administration or enforcement of the relevant Gas Transportation Deed.
(b)	VENCorp may, from time to time for the purpose of and to the extent necessary to allow VENCorp to comply with any applicable accounting standards, request TPA to provide to VENCorp details of amounts billed to Market Participants by TPA under clauses 11.1 and 11.2, (including copy invoices) provided that VENCorp must take all reasonable steps to ensure that details of such amounts notified by TPA under this clause 11.4(b) are:
(1)	kept confidential;
(2)	not communicated to any other Market Participant; and
(3)	only communicated to those persons within VENCorp and their professional advisers who require access to this information for the purposes of management, administration or enforcement of the relevant Gas Transportation Deed.
11.5	Conduct under Gas Transportation Deed
(a)	VENCorp must comply with its obligations under a Gas Transportation Deed insofar as they relate to the Tariffed Transmission Services or matters relevant to the Tariffed Transmission Services.
(b)	VENCorp must not:
(1)	make any variation to the terms of a Gas Transportation Deed; or
(2)	grant any waiver of the terms of a Gas Transportation Deed,
insofar as the variation or waiver relates (directly or indirectly) to the Tariffed Transmission Services or matters relevant to the Tariffed Transmission Services without the prior written consent of TPA, such consent not to be unreasonably withheld.
(c)	If a Market Participant jeopardises the safety or integrity of the facilities comprising the Gas Transmission System, VENCorp must exercise such of its rights under the Gas Transportation Deed as TPA may reasonably require to ensure compliance by the Market Participant with the terms of the Gas Transportation Deed or to ensure that the Market Participant takes remedial action (as the case may be).
12	Data
12.1	Unverified metering data
(a)	Unless and to the extent the MSO Rules provide otherwise, TPA owns all raw unverified metering data obtained from metering installations owned by TPA or TPA Assets, and VENCorp has a non-exclusive royalty free right to make use of such metering data during the term of this Agreement.
(b)	The parties agree that all metering data is Confidential Information for the purposes of this Agreement and the MSO Rules.
12.2	Verified metering data
(a)	Unless and to the extent the MSO Rules provide otherwise, VENCorp owns all verified metering data obtained from metering installations for the purposes of the MSO Rules and TPA has a non-exclusive royalty free right to make use of such verified metering data during the term of this Agreement.
(b)	VENCorp may use verified metering data for a purpose contemplated by the MSO Rules providing that:
(1)	the relevant data is used by VENCorp in an aggregated form; and
(2)	VENCorp takes all reasonable actions to ensure that its use of the relevant data does not enable identification of any component part of that data, having regard to the potential commercial sensitivity of information relating to the demand and consumption patterns of customers,
and otherwise, all verified metering data is Confidential Information for the purposes of this Agreement and the MSO Rules.
12.3	Provision of Metering data to TPA
(a)	In order to enable TPA to calculate charges to Market Participants in accordance with clause 11, VENCorp must provide to TPA the following data:
(1)	the total gigajoules of Gas delivered to each Market Participant through each Transmission Zone, as metered at each custody transfer meter; and
(2)	the total gigajoules of Gas delivered through each Transmission Zone to those of each Market Participant’s customers who are subject to Transmission Delivery Tariff D, as metered at each of those customers’ sites and adjusted by the addition of Benchmark Distribution Unaccounted For Gas.
(b)	VENCorp must provide the information referred to in clause 12.3(a) as preliminary data by no later than the 3rd Business Day of each month and final data by no later than the 15th Business Day of each month.
12.4	Gas flow data at Connection Points
In order to enable TPA to calculate charges to Market Participants in accordance with clause 11, each day VENCorp must provide to TPA details of the amount of Gas flowing through custody transfer meters at each Connection Point by no later than the 3rd Business Day after the relevant day of each month.
12.5	Operational data
In order to enable TPA to monitor the extent of use of the Gas Transmission System from time to time, VENCorp must provide to TPA:
(a)	information concerning alarms and alarm signals relevant to the Gas Transmission System, which must be provided to TPA on a live basis; and
(b)	other operational information relating to the Gas Transmission System of a nature specified in Schedule 4 including but not limited to pressure, temperature and flow data along pipelines comprising the Gas Transmission System, which must be provided to TPA as soon as practicable after the data has become available to VENCorp.
13	Intellectual property
(a)	If, in the course of carrying out its obligations under this Agreement, VENCorp develops, discovers or produces a new product, concept or process which is capable of being patented or otherwise protected, that product, concept or process is the property of VENCorp, provided that VENCorp must and hereby does grant to TPA a non-exclusive royalty free right to make use of such property for the purposes of and associated with the activities, matters and things reasonably contemplated by this Agreement during the subsistence of the relevant intellectual property rights applicable to the relevant product, concept or process.
(b)	If, in the course of carrying out its obligations under this Agreement, TPA develops, discovers or produces a new product, concept or process which is capable of being patented or otherwise protected, that product, concept or process is the property of TPA, provided that TPA must and hereby does grant to VENCorp a non-exclusive royalty free right to make use of such property for the purposes of and associated with the activities, matters and things reasonably contemplated by this Agreement during the subsistence of the relevant intellectual property rights applicable to the relevant product, concept or process.
14	Emergencies
Each party agrees to cooperate in good faith to the extent to which that party is reasonably able to do so, to enable the other parties to comply with:
(a)	the Act;
(b)	the Gas Safety Act 1997;
(c)	all other Regulatory Instruments; and
(d)	each party’s Safety Case.
15	Environment and occupational health and safety
15.1	Compliance with environmental laws
(a)	Each party agrees to cooperate in good faith to the extent to which that party is reasonably able to do so, to enable the other parties to: 
(1)	achieve compliance with all relevant Commonwealth and State environmental laws, including, but not limited to the Environment Protection Act 1970, the Environment Effects Act 1978, the Planning and Environment Act 1987, and any regulation, State environment protection policy, scheme, licence, approval, permit, notice, direction or other instrument made or issued under such Acts; and
(2)	handle any third party legal actions involving either of the parties under any of the Acts or other instruments referred to in clause 15.1(a)(1).
(b)	The parties may agree from time to time that one or more of the parties will, in respect of any particular pipeline or site, be primarily responsible for compliance with the obligations imposed by any of the Acts or other instruments referred to in clause 15.1(a)(1), but no party will be deemed to have admitted any legal liability under those Acts or other instruments solely by reason of entering into such an agreement.
15.2	Compliance with occupational health and safety laws
(a)	Each party agrees to cooperate in good faith to the extent to which that party is reasonably able to do so, to enable the other parties to: 
(1)	achieve compliance with the Occupational Health and Safety Act 1985, and any regulation, State policy, scheme, licence, approval, permit, notice, direction or other instrument made or issued under such Act; and
(2)	handle any third party legal actions involving either of the parties under any of the Acts or other instruments referred to in clause 15.2(a)(1).  
(b)	The parties may agree from time to time that one or more of the parties will, in respect of any particular pipeline or site, be primarily responsible for compliance with the obligations imposed by the Act or other instruments referred to in clause 15.2(a), but no party will be deemed to have admitted any legal liability under that Act or those other instruments solely by reason of entering into such an agreement.
16	Force Majeure
16.1	General position
Non-performance (other than the obligation to pay money) of any obligation or condition required by this Agreement to be performed by any party due to Force Majeure:
(a)	will be excused during the time and to the extent that performance is prevented, wholly or in part, by Force Majeure; and
(b)	will not to that extent give rise to any liability to the other parties for any losses or damages arising out of, or in any way connected with, such non-performance.
16.2	Notification to other parties
Except as set out in this Agreement, if a party seeks relief from performance of an obligation or condition under this Agreement due to Force Majeure, the party must:
(a)	as soon as reasonably practicable but in any event within 2 days, give notice to the other parties of the occurrence of the event or circumstance claimed to be Force Majeure, including: 
(1)	full particulars relating to the event or circumstance and the cause of such failure to perform; and 
(2)	an estimate of the period of time required to remedy such failure to perform;
(b)	provide the other parties with a reasonable opportunity and assistance to examine and investigate the relevant event or circumstance which constitutes the Force Majeure and failure to perform;
(c)	exercise reasonable efforts to mitigate or remove the effects of the relevant event or circumstance but excluding any measures which are not economically feasible for the parties; and
(d)	give notice immediately to the other parties upon termination of the event or circumstance of Force Majeure.
16.3	Industrial disturbance
Nothing in this Agreement requires a party  to adjust or settle any strike, lockout or other industrial disturbance against the will of that party.
16.4	Qualification
No Force Majeure affecting the performance of any obligation or condition under this Agreement by a party operates to prevent a cause of action arising from or altering the expiration of the period of time within which by the exercise of reasonable diligence and the employment of all reasonable means, that party could have remedied the situation preventing its performance.
17	Remedies
17.1	Material Breach
(a)	If a party commits a Material Breach, then another party may give the party in default written notice specifying the Material Breach and the Service (if any) relevant to the Material Breach. 
(b)	If the party in default does not cure the Material Breach specified in the notice referred to in clause 17.1(a) within 14 days of the other party giving the notice, then the other party may by further notice to the party in default, invoke the Dispute Resolution Procedure.
17.2	Financial Default
(a)	If a party commits a Financial Default, then another party may give the party in default written notice specifying the Financial Default and the Service (if any) relevant to the Financial Default. 
(b)	If the party in default does not cure the Financial Default specified in the notice referred to in clause 17.2(a) within 7 days of the other party giving the notice, then the other party may by further notice to the party in default invoke the Dispute Resolution Procedure.
17.3	Cure
A Material Breach or Financial Default (as the case may be) is taken to have been cured where:
(a)	in the case of a Material Breach that is capable of remedy, the Material Breach has been remedied;
(b)	in the case of a Material Breach that is incapable of remedy (for example, because the time for performance has passed), then the Material Breach is taken to have been cured when the party in default:
(1)	has paid reasonable compensation to the other party for any loss suffered by the other party as a result of the Material Breach (including all costs of enforcement); and 
(2)	has taken all reasonable steps to prevent the Material Breach being repeated; and
(c)	in the case of a Financial Default, when the party in default has paid to the other party the total amount (including interest and all costs of recovery and enforcement) which is the subject of the Financial Default.
18	Ongoing application of Agreement
18.1	Parties must agree
At least six months prior to the termination of this Agreement, VENCorp and TPA must agree upon the terms of this Agreement (if any) that will continue to apply after the termination of this Agreement.
18.2	Failure to reach agreement
(a)	If:
(1)	VENCorp and TPA are unable to reach agreement or continue to agree upon the terms of this Agreement:
(A)	during the term of this Agreement; or
(B)	under clause 18.1; or
(2)	a dispute arises between VENCorp and TPA in relation to this Agreement,
then either party may refer the matter for resolution in accordance with the Dispute Resolution Procedure.
(b)	For the avoidance of doubt, the referral of a matter to a Working Group or an Independent Expert under clause 5 does not constitute a dispute to which clause 18.2(a)(2) relates.
(c)	If the parties do not reach agreement in accordance with clause 18.1, this Agreement will continue to operate with full force and effect after the due date for termination of this Agreement, until:
(1)	the parties agree upon the provisions of this Agreement that will continue to apply; or
(2)	an Award is made by a Dispute Resolution Panel as to the provisions of this Agreement that will continue to apply,
and unless the parties otherwise agree, any such agreement or Award is to have effect from the due date of termination of this Agreement.
18.3	Amendment of Agreement
Except as set out in the MSO Rules or as required by the Regulator, and subject to obtaining any necessary approvals from the Regulator, this Agreement may only be amended or supplemented in writing, signed by the parties.
18.4	Change to Regulatory Instrument
(a)	If any Regulatory Instrument is altered or any relevant determination or decision of the Regulator is made that materially affects the operation of any provision of this Agreement, this Agreement is to be amended to accommodate that change.
(b)	Without limiting clause 18.4(a), if the MSO Rules are amended so that TPA is no longer liable to make a payment under clause 3.6.8(g) of the MSO Rules due to a failure to comply with the TPA Service Envelope Obligations, the parties must renegotiate the terms of this Agreement to:
(1)	reflect any relevant provision of the MSO Rules which makes TPA otherwise liable to make a payment due to a failure to any extent by TPA to make available the Gas Transmission System; or
(2)	otherwise amend this Agreement to provide for TPA to make a payment equivalent to that which would have been payable under clause 3.6.8(g) of the MSO Rules, in the event that TPA fails to any extent to make available the Gas Transmission System.
(c)	If the parties fail to agree on the terms of this Agreement in accordance with clause 18.4(a) or (b), either party may invoke the Dispute Resolution Procedure.
19	Disputes
(a)	If a matter is referred for resolution in accordance with the Dispute Resolution Procedure, the chief executive officers of VENCorp and TPA must:
(1)	appoint a Dispute Resolution Panel as soon as practicable after the dispute is brought to the attention of either of them; and
(2)	refer that matter to the Dispute Resolution Panel as soon as practicable after that Dispute Resolution Panel is appointed.
(b)	A matter referred for resolution under clause 19(a)(2) must be arbitrated in accordance with this clause 19 and the Commercial Arbitration Act 1984 (Victoria).
(c)	A Dispute Resolution Panel appointed under clause 19(a)(1) is to comprise:
(1)	a person who is:
(A)	independent of both TPA and VENCorp;
(B)	legally qualified;
(C)	has an understanding of the gas industry;
(D)	has a detailed understanding and experience of alternative dispute resolution practice and procedures which do not involve litigation; and
(E)	has the capacity to determine the most appropriate dispute resolution in the particular circumstances of the dispute; and/or
(2)	two persons:
(A)	one of whom is appointed by TPA and one of whom is appointed by VENCorp;
(B)	who have an understanding of the gas industry; and
(C)	who have technical qualifications appropriate to resolve the dispute including but not limited to a technical understanding of matters relevant to operation of gas transmission pipelines.
(d)	A person who has previously served on a Dispute Resolution Panel is not precluded from being appointed to another Dispute Resolution Panel established in accordance with clause 19(a).
(e)	If the chief executive officers of VENCorp and TPA are unable to reach agreement as to the composition of the Dispute Resolution Panel to be appointed in accordance with clause 19(a), they must ask the Adviser appointed under clause 7.2.2(a) of the MSO Rules to appoint the Dispute Resolution Panel in accordance with clause 19(a) and must pay the reasonable costs of the Adviser in relation to the making of those appointments.
(f)	When a matter is referred to a Dispute Resolution Panel under clause 19(a)(2), the person appointed to the Dispute Resolution Panel under clause 19(c)(1) must select the form of, and procedures to apply to, the dispute resolution process which is, in the opinion of that person, reasonable, and which:
(1)	is simple, quick and inexpensive;
(2)	observes the rules of natural justice; and
(3)	encourages resolution of disputes without formal legal representation or reliance on legal procedures.
(g)	For the purposes of any Award of the Dispute Resolution Panel, the parties may agree that as part of the Award, the Dispute Resolution Panel may settle the terms and conditions of any amendments required to be made to this Agreement or any agreement replacing this Agreement.
20	Termination
20.1	Termination of Agreement
(a)	TPA Assets or TPA may terminate this Agreement at any time by notice in writing to VENCorp, if VENCorp ceases to be responsible for the security and operation of the Gas Transmission System or ceases to operate the market under the MSO Rules or otherwise ceases to perform the Tariffed VENCorp Services.
(b)	VENCorp may terminate this Agreement at any time by notice in writing to TPA and TPA Assets if an Insolvency Event occurs in relation to TPA or TPA Assets.
(c)	For the avoidance of doubt, TPA Assets or TPA is not permitted to terminate this Agreement due solely to the transfer of the property, rights and liabilities of VENCorp under the Act and this Agreement to a company incorporated under the Corporations Law of Victoria to which the business, affairs and assets of VENCorp are assigned where that company undertakes to provide the services which are the same as or substantially similar to the Tariffed VENCorp Services.
20.2	After termination
Termination of this Agreement for any reason does not affect:
(a)	any rights of a party against the other party which:
(1)	arose prior to the time at which the termination occurred; or
(2)	otherwise relates to or may arise at any future time from any breach or non-observance of that other party’s obligations under this Agreement occurring prior to termination; and
(b)	the rights and obligations of the parties under this Agreement in respect of any monies outstanding under this Agreement.
21	Confidentiality
Except as otherwise provided in this Agreement: 
(a)	each Party must treat Confidential Information as confidential and must take all reasonable precautions to ensure that its employees maintain such confidentiality; and 
(b)	the confidentiality provisions of the MSO Rules apply to all Confidential Information under this Agreement. 
22	Notices
22.1	How notices may be given
A notice, request, demand, consent or approval (each a notice) under this Agreement:
(a)	must be in writing;
(b)	may be signed for the party giving it by the party’s authorised officer, attorney or solicitor;
(c)	may be delivered personally to the person to whom it is addressed, or left at or sent by prepaid post to the person’s address, or faxed to the person’s fax number, given below:
(1)	if to TPA or TPA Assets:
Address:	180 Greens Road, Dandenong, Victoria
Fax:		(03) 9797 5295
Attention:	Chief Executive, TPA
(2)	if to VENCorp:
Address:	433 Smith Street, North Fitzroy, Victoria
Fax:		(03) 9481 9269
Attention:	Chief Executive
22.2	When notice taken as given
A notice is taken as given by the sender and received by the intended recipient:
(a)	if posted, 3 days after posting; and
(b)	if faxed, on completion of the transmission as evidenced by receipt by the delivering party of a delivery report confirming the fax has been transmitted, 
but if delivery or receipt is on a day which is not a Business Day of a party or is after 5.00pm at the place of delivery or receipt, it is taken as given at 9.00am on the next Business Day.
22.3	Change of address or fax number
A party may change its address or fax number for notices by giving notice to the other parties.
23	Assignment
23.1	Assignment generally
A party may not assign its rights under this Agreement unless it has the other parties’ written consent and the other party must not unreasonably withhold its consent.
23.2	Transfer  by State entity
Nothing in this clause prevents a party (“the first party”) transferring the whole of its rights under this Agreement where:
(a)	immediately prior to that transfer the party is ultimately controlled by the State of Victoria (the “State”), a State instrumentality or a statutory authority; and
(b)	the transfer is to a transferee selected by the State; and
(c)	the proposed transferee assumes all the obligations of the party under this Agreement,
and following any such transfer by the party, the other parties must execute and deliver to the first party a deed under which the other parties release the first party in respect of the obligations assumed by the transferee.
23.3	Assignment not a restriction on securities
Nothing in this Agreement prevents a party from pledging, mortgaging, encumbering or assigning by way of security its rights under this Agreement provided that the chargee or mortgagee must first acknowledge in writing to the other parties that upon it realising its charge or mortgage, it will be bound by the terms of this Agreement.
24	Change in taxes
(a)	If at any time after this Agreement is executed a sales tax, use tax, consumption tax, goods and services tax, value-added tax or any similar tax, impost or duty is levied upon the Services, whether that tax, impost or duty is levied under legislation of the Commonwealth of Australia or any State or Territory, the parties agree to renegotiate in good faith any provision of this Agreement which any party reasonably considers to have been affected by that change in taxes, including but not limited to any charges payable under this Agreement.
(b)	If the negotiations referred to in clause 24(a) do not result in an agreement between the parties within 20 Business Days after such negotiations have commenced, the parties must:
(1)	refer a dispute concerning charges payable under this Agreement to the Regulator and request the Regulator to decide on a fair and reasonable variation in those charges; and
(2)	resolve any other dispute in accordance with the Dispute Resolution Procedure.
(c)	The parties must comply with:
(1)	any decision of the Regulator relating to charges payable under this Agreement; and
(2)	a resolution of any other matter in accordance with the Dispute Resolution Procedure.
25	Relationship between parties
25.1	No partnership or fiduciary relationship
The parties agree and confirm that:
(a)	neither the terms of this Agreement nor any rights or obligations of any party is to be construed as creating a partnership, association, trust or other fiduciary relationship between the parties;
(b)	subject always to clause 11, VENCorp is not the agent of either TPA and TPA Assets, and VENCorp does not have any authority to receive notices or serve process on behalf of TPA or TPA Assets; 
(c)	subject always to clause 11, neither TPA Assets nor TPA is an agent of VENCorp, and nor does TPA Assets or TPA have any authority to receive notices or serve process on behalf of VENCorp; 
(d)	VENCorp will not incur any liabilities on behalf of TPA or TPA Assets, pledge the credit of TPA or TPA Assets or make any contract binding upon TPA or TPA Assets except where it is specifically authorised to do so pursuant to this Agreement; and
(e)	neither TPA Assets nor TPA will incur any liabilities on behalf of VENCorp, pledge the credit of VENCorp nor make any contract binding upon VENCorp except where either of them is specifically authorised to do so pursuant to this Agreement.
25.2	Joint and several liability of TPA
(a)	The liability of TPA Assets and TPA for performance of the obligations of TPA under this Agreement, is joint and several.
(b)	The liability of TPA Assets and TPA for performance of the obligations of TPA Assets under this Agreement, is joint and several.
26	General
26.1	Approvals and consents
Subject to the express provisions of this Agreement, whenever in this Agreement the agreement, approval or consent of a party is required, the agreement, approval or consent may be withheld at the party’s sole discretion, delayed or given subject to any condition.
26.2	Costs and expenses
Each party must pay its own legal costs and expenses for the negotiation, preparation, completion and stamping of this Agreement.
26.3	Governing law and jurisdiction
(a)	This Agreement is governed by the law of Victoria.
Each party irrevocably submits to the non-exclusive jurisdiction of the courts of Victoria and courts hearing appeals from them.
A party must not object to the jurisdiction of a court merely because the forum is inconvenient.
26.4	Waiver
(a)	A party waives a right under this Agreement only if it does so in writing. 
(b)	A party does not waive a right simply because it:
(1)	fails to exercise the right;
(2)	delays exercising the right; or
(3)	only exercises part of the right.
(c)	A waiver of one breach of a term of this Agreement does not operate as a waiver of another breach of the same term or any other term.
26.5	Further action
Each party must promptly sign any document and do anything else that is necessary or reasonably requested by the other party to give full effect to this Agreement.
26.6	Whole agreement
This Agreement:
(a)	replaces all previous agreements, representations, warranties or understandings between the parties concerning the subject matter of this Agreement; and 
(b)	contains the whole agreement between the parties.
26.7	Unenforceable provision
If a provision in this Agreement (not being clauses 4(b) or 11) is wholly or partly invalid or unenforceable in any jurisdiction, that provision or part must, to that extent and in that jurisdiction, be treated as deleted from this Agreement. This does not affect the validity or enforceability of the remaining provisions in that jurisdiction, or of the deleted provision in any other jurisdiction.
26.8	Counterparts
This Agreement:
(a)	may be executed in a number of counterparts; and 
(b)	comprises all the counterparts, taken together.
26.9	Survival of provisions
A provision of this Agreement that has not been met on, or can have effect after, completion of the transaction contemplated by this Agreement, or termination of this Agreement, continues to apply after completion or termination.
26.10	Separate obligations and expenses
Any indemnity in this Agreement is a continuing obligation, separate and independent from the other obligations of the parties. It is not necessary for a party to incur expense or make payment before enforcing a right of indemnity conferred by this Agreement.
26.11	Settlement of claims
Subject to clause 11, a party must not agree to settle any claim by a third party for which the party claims indemnity under this Agreement without first obtaining the consent of the other parties.
26.12	Specific performance
Nothing in this clause limits the right of the parties to enforce this Agreement by seeking an order for specific performance in any Court of competent jurisdiction.

Executed as an agreement:
SIGNED
for Transmission Pipelines Australia
Pty Ltd by its attorney in the presence of:
			
Witness	Attorney

Name (please print)	

SIGNED
for Transmission Pipelines Australia
(Assets) Pty Ltd by its attorney in the presence of:
			
Witness	Attorney

Name (please print)	

The official seal of
VICTORIAN ENERGY NETWORKS
CORPORATION is affixed to this
document:
			
Secretary	Director

Name (please print)	Name (please print)

Schedule 1

INDEX

1.	INTRODUCTION
1.1 	Definitions

2.	DESCRIPTION OF ASSETS.
2.1	Pipelines
2.1.1	Principal Transmission System - Rural Eastern
2.1.2	Principal Transmission System - Rural Central North
2.1.3	Principal Transmission System - Rural Central
2.1.4	Principal Transmission System - Northern Metropolitan
2.1.5	Principal Transmission System - South Eastern Metropolitan
2.1.6	Principal Transmission System - Western Metropolitan
2.2	Regulators
2.2. 1	Tyers Pressure Limiter
2.2. 2	Morwell City Gate
2.2. 3	Dandenong City Gate
2.2. 4	Wollert City Gate
2.2. 5	Wollert Pressure Limiter
2.2. 6	Laverton North City Gate
2.2. 7	Hopkins Road Pressure Limiter
2.2. 8	Clunes Road Pressure Limiter
2.2. 9	Toolamba Road Pressure Limiter
2.2.10	Dandenong Pressure Limiter
2.2.11	Clonbinane Pressure Limiter 
2.3	Compressor Stations
2.3. 1	Gooding Compressor Station
2.3. 2	Wollert Compressor Station
2.3. 3	Brooklyn Compressor Station
2.4	Pipeline Valves
2.4.1	Mainline Valves
2.4.2	Branch Valves
2.4.3	Pig Trap Valves
2.4.4	Pig Trap Kicker Valves
2.5 	Telemetry
2.6	Odorisation

3.	DESIGN CAPABILITY.
3.1	Pipelines
3.2	Regulators
3.2.1	Tyers Pressure Limiter
3.2.2	Morwell City Gate
3.2.3	Dandenong City Gate
3.2.4	Wollert City Gate
3.2.5	Wollert Pressure Limiter
3.2.6	Laverton North City Gate
3.2.7	Hopkins Road Pressure Limiter
3.2.8	Clunes Road Pressure Limiter
3.2.9	Toolamba Road Pressure Limiter
3.2.10	Dandenong Pressure Limiter
3.2.11	Clonbinane Pressure Limiter
3.3	Compressor Stations
3.3.1	Gooding Compressor Station
3.3.2	Brooklyn Compressor Station
3.3.3	Wollert Compressor Station
3.4	Pipeline Valves
3.5 	Telemetry
3.6	Odorisation

4.	OPERATING CONSTRAINTS 
4.1	Pipelines
4.2	Regulators
4.3	Compressor Stations
4.3.1 	Gooding Compressor Station
4.3.2	Wollert Compressor Station
4.3.3	Brooklyn Compressor Station
4.4	Pipeline Valves
4.5	Telemetry
4.6	Odorisation

APPENDICES
Appendix 1:	Key Plan Drawings
Appendix 2:	Operational Procedures
Appendix 3:	Compressor Stations Key Data Plan A1-301-1
Appendix 4:	TPA’s Field Operations Dept. – Critical TP Valves
Appendix 5:	TPA Pipelines Specifications Summary
Appendix 6:	Regulator Capacity Table
Appendix 7 	Brooklyn Compressors Operational Configuration.

1. 	INTRODUCTION.
See Clause 3.1(g) of this Agreement. 
The odorisation plant will be monitored by VENCorp for TPA in line with TPA procedures as specified in this Schedule.
	TPA will add the following new assets to the Service Envelope, as required by clause 3.1(e) of this Agreement, no earlier than the dates indicated below.
1.	Brooklyn - Paradise Rd Loop of 500 mm diameter (“the Brooklyn Loop”) - to be commissioned by 1 May 2001;
and 
2.	Brooklyn Compressor Upgrade - Restaging of 2 Centaur machines - to be completed by 1 October, 2000.
1.1	Definitions 
1.1.1	In this Schedule, unless the context otherwise requires, and in addition to the definitions contained in clause 1.1 of this Agreement;
“Assets” means facilities and vice versa.
“Availability” means the availability of facilities included in the Service Envelope for 100% of 24 hours per day for all days of the year less VENCorp approved maintenance less any operational ramp up times associated with particular types of facilities.
“Good design practice” means Good Practice and vice versa. 
“Maintenance” includes upgrades, refurbishments and similar work.
“Nominal Power” means the shaft power of an industrial gas turbine at standard ISO conditions of 150C, at sea level, for natural gas fuel approved by the turbine supplier for use in the turbine at 60% relative humidity, zero inlet and exhaust losses.
“Principal Transmission System” means the Gas Transmission System more particularly described in clauses 1.1 and 3.1 of this Agreement.
1.1.2	In this Schedule, unless the context otherwise requires,
(i)	All references to engineering documentation such as key plans, site layouts, assembly, process and instrumentation drawings (P&ID) form part of the Service Envelope. Amendments to such drawings shall only be considered valid if mutually agreed to by all parties in writing. In default of agreement the Dispute Resolution Procedure shall apply.
(ii)	The Principal Transmission System assets include transmission system pipelines, pipeline valves, pressure regulator stations, gas compression stations, and telemetry facilities.
(iii)	Regard shall be had to the common or usual gas industry or engineering descriptions of, and acronymns for, any place, asset, facility, thing, service, quantity, size or matter as an aid to interpretation of this Schedule.

2.	DESCRIPTION OF ASSETS.
2.1	Pipelines
The Service Envelope covers the Principal Transmission System within Victoria, total length of 1561.8 km, commencing at Longford (Eastern Victoria) in the Gippsland district and extend to Geelong (South West of Melbourne), Ballarat (Western Victoria), Bendigo (Central Victoria) and to Wodonga, Culcairn, Koonoomoo and Echuca (Northern Victoria).
The assets under the pipeline category within the Principal Transmission System are located in accordance with the following key plan drawings, copies of which are included in the Appendix 1.
•	Principal Transmission System, Longford - Dandenong - Wollert 
A4 - 363 - 1
•	Principal Transmission System,  750 diameter Dandenong - West Melbourne - Brooklyn
A4 - 363 - 2
•	Principal Transmission system, Brooklyn - Geelong 
A4 - 363 - 3
•	Principal Transmission System, Ballarat - Bendigo 
A4 - 363 – 4 Revision A (Carisbrook Offtake added after 9 December, 1997)
•	Principal Transmission System, Wollert - Albury - Echuca - Koonoomoo – Culcairn A4 - 363 – 5 Revision A. (Murray Valley and Interconnect Pipelines added after 9 December, 1997)
The pipeline assets include the provision of Principal Transmission System (excluding Murray Valley and Interconnect) passive linepack of 462117 GJ, Murray Valley passive linepack of 2135 GJ, and Interconnect passive linepack of 9733 GJ
2.1.1	Principal Transmission System
Rural Eastern (Key Plan No. A4-363-1)
Licence 50  -  T1 Diameter 450 mm Morwell to Dandenong (Morwell to Dandenong)
The pipeline commences from an offtake near Morwell City Gate  travelling in a westerly direction to Dandenong Terminal Station Frankston/Dandenong Road, Dandenong. The length of the pipeline is  126.6 km.
Licence 68  -  T38 Diameter 80 mm Pakenham (Healesville-Koo-Wee-Rup Road) 
The pipeline commences from a branch valve on pipeline licence 50 in Healesville along Healesville-Koo-Wee-Rup Road to Meter Station M040 at the Pakenham South City Gate at Healesville-Koo-Wee-Rup Road/Bald Hill Road. The length of the pipeline is  1.2 km.
Licence 107 - T32 Diameter 100 mm Clyde North (Pound Road to Tuckers Road)
The pipeline commences from a branch valve on pipeline licence 50 at Clyde North Offtake along Pound Road travelling in a southerly direction to Meter Station M038 near Clyde North regulator station at Tuckers Road. The length of the pipeline is  2.0 km.
Licence 67  -  T37 Diameter 150 mm Maryvale (Supply to APM Maryvale)
	The pipeline commences from two branch valves on pipeline licences 75  and 117 in Tyers to A.P.M. Maryvale. The length of the pipeline is  5.63 km.
Licence 91  -  T44 Diameter 100 mm Warragul (Supply to Anderson Street, Warragul)
The pipeline commences from a branch valve on pipeline licence 50  travelling in a northerly direction  to Meter Station M090 near the regulator/ station at Anderson Street/ Princes Highway. The length of the pipeline is  4.72 km.
Licence 75  -  T 60 Diameter 750 mm Longford to Dandenong (Longford to Dandenong)
The pipeline commences from Longford Metering Station travelling in a westerly direction via Gooding Compressor Station to Dandenong City Gate in Frankston /Dandenong Road, Dandenong. The length of the pipeline is  173.8 km.
Licence 117 - T60 Diameter 750 mm Rosedale to Tyers (Rosedale to Tyers)
The pipeline commences from the tee after the line valve 2 on pipeline licence 120 near Rosedale-Limestone Quarry Road/Old Rosedale Road travelling in a westerly direction to the branch valves on the pipeline licence 75 near Tyers River. The length of the pipeline is  34.3 km.
Licence 120 - T60 Diameter 750 mm Longford to Rosedale (Longford to Rosedale)
The pipeline commences from the Longford Metering Station travelling in a westerly direction in parallel with the pipeline licence 75 to terminate at a tee on pipeline licence 117 after line valve 2 and at two branch valves on the pipeline licence 75 at Old Rosedale Road. The length of the pipeline is  30.8 km.
Licence 121 - T63 Diameter 500 mm Tyers to Morwell (Tyers to Morwell)
The pipeline commences from the branch valve on pipeline licence no. 50 near Morwell City Gate at Fourth Avenue travelling in a southerly direction to the branch valves on the pipeline licences 75 and 117 at Tyers Pressure Limiter  near Tyers Glengarry West Road. The length of the pipeline is  15.7 km.
Licence 135 - T60 Diameter 750 mm Bunyip to Pakenham  (Bunyip to Pakenham)
The pipeline commences from two branch valves on licence 75 at Linevalve 8 at Doran Road travelling in a westerly direction to Linevalve 9 at Dore Road, Princess Highway. The length of the pipeline is  19.0 km.
Licence 141 - T61 Diameter 750 mm Pakenham to Wollert (Pakenham to Wollert)
The pipeline commences from the Pakenham Offtake at Dore Road/Princes Highway travelling in a north westerly direction to the Wollert Compressor Station along Summerhill Road. The length of the pipeline is  91.0 km.
2.1.2	Principal Transmission System
Rural Central Northern (Key Plan No. A4-363-5)
Licence 101 (part) - T74 Diameter 300 mm Melbourne-Wodonga-Shepparton (Wollert to Wodonga)
The pipeline commences from Wollert Compressor Station near Summerhill Road travelling in a north easterly direction to Meter Station M091 at the Wodonga City Gate near Hume Freeway / Old Murray Valley Highway. The length of the pipeline is  269.4 km.
Licence 101 (part) - T59 Diameter 200 mm Melbourne-Wodonga-Shepparton (Euroa to Shepparton)
The pipeline commences from a branch near Meter Station M064 at  Euroa City Gate along the Wollert to Wodonga pipeline in Shepparton travelling in a north westerly direction to Meter Station M081 at Shepparton City Gate along Archer Street. The length of the pipeline is  34.5 km.
Licence 132 (part) - T71 Diameter 200 mm Tatura (Shepparton to Tatura)
The pipeline commences from a tee on the pipeline licence 101 near Meter Station M081 at Shepparton City Gate near Archer Road travelling in a westerly direction to Meter Station M082 at Tatura City Gate along Dhurringile Road. The length of the pipeline is  16.0 km.
Licence 136 - T71 Diameter 200 mm Tatura to Kyabram (Tatura to Kyabram)
The pipeline commences from a branch tee on the pipeline licence 132 at Meter Station M082 at Tatura City Gate along Dhurringale Road travelling in a north westerly direction to Meter Station M067 at Kyabram City Gate at McEwan Road/Lilford Road. The length of the pipeline is  22.0 km.
Licence 152 - T85 Diameter 150 mm Kyabram to Echuca (Kyabram to Echuca)
The pipeline commences from Meter Station M067 at Kyabram City Gate at McEwan Road/Lilford Road  travelling in a north westerly direction to Meter Station M063 at Echuca City Gate at Echuca Road/Cornella Road. The length of the pipeline is  30.5 km.
Licence 176 - Diameter 200 mm Chiltern to Rutherglen (Murray Valley) (Added after 9 December, 1997)
The pipeline commences from a branch valve located on the pipeline licence 101 at Chiltern travelling in a north westerly direction to the Rutherglen City Gate at Jacks Road/Kings Road in Rutherglen. The length of the pipeline is  14.3 km. The pipeline is internally unlined with MAOP of 7400 kPa
Licence 182 – Diameter 200 mm Rutherglen to Koonoomoo (Murray Valley) (Added after 9 December, 1997)
The pipeline commences at Rutherglen City Gate and travels in a north westerly direction to the Koonoomoo City Gate.  The length of the pipeline is 89.3 km.  The pipeline is internally unlined with MAOP of 7400 kPa
Licence 178 - Diameter 450mm Barnawartha North to VIC/NSW Border (Barnawartha to VIC/NSW Border) and
NSW Licence 24 - Diameter 450mm VIC/Border to Culcairn (VIC/Border to Culcairn) (Added after 9 December, 1997)
The pipeline commences from a branch valve on the Wollert to Wodonga pipeline at  Barnawartha - Howlong Rd in Barnawartha travelling in a northerly direction to the EAPL Culcairn Meter Station in NSW. The length of TPA - owned pipeline is  62.5 km.. The pipeline is internally unlined with MAOP of 10,200 kPa. The pipeline is also fitted with Automatic Linebreak (ALB) controls as well as the remote control and monitoring of line valves along the pipeline.
2.1.3 	Principal Transmission System
Rural Central (Key Plan No. A4-363-4)
Licence 78 (part)  -  T56 Diameter 200 mm Brooklyn-Ballarat-Bendigo (Brooklyn to Ballan)
The pipeline commences from Brooklyn Compressor Station in Brooklyn travelling in a westerly direction to Ballan Bifurcation at Ballan. The length of the pipeline is  66.6 km.
Licence 78 (part)  -  T57 Diameter 150 mm Brooklyn-Ballarat-Bendigo (Ballan to Ballarat)
The pipeline commences from Ballan Bifurcation at Ballan travelling in a westerly direction along the pipeline licence 134 to Meter Station M057 at Ballarat City Gate at Warrenheip Road/Clarks Road, Ballarat. The length of the pipeline is  22.7 km. 
Licence 78 (part)  -  T70 Diameter 150 mm Brooklyn-Ballarat-Bendigo (Ballan to Bendigo)
The pipeline commences from Ballan Bifurcation at Ballan travelling in a northerly direction along the pipeline licence 131 to Bendigo City Gate near Calder Highway. The length of the pipeline is  90.8 km.

Licence 125 – T67 Diameter 150 mm Maryborough (Guildford to Maryborough)
The pipeline commences from two branch valves on the pipeline licence 75 at Guildford Offtake near Midland Highway travelling in a north westerly direction to Meter Station M068 at Maryborough City Gate at Pyrenees Highway/Townsend Road. The length of the pipeline is  33.0 km.
Licence 128 – T66 Diameter 300 mm Mt. Franklin to Kyneton (Mt Franklin to Kyneton)
The pipeline commences from a branch valve on pipeline licence 78 at Mt. Franklin Offtake travelling in a easterly direction to the Kyneton City Gate near Harts Road. The length of the pipeline is  24.0 km.
Licence 131 – T70 Diameter 300 mm Mt. Franklin to Bendigo (Mt Franklin to Bendigo)
The pipeline commences from a tee on the pipeline licence 128 at Mt. Franklin Offtake near Porcupine Ridge Road travelling in a northerly direction to Meter Station M057 at Bendigo City Gate. The length of the pipeline is  53.0 km.
Licence 134 – T57 Diameter 300 mm Ballan to Ballarat (Ballan to Ballarat)
The pipeline commences from three branch valves on licence 78 at Ballan Bifurcation travelling in a southerly direction in parallel with the pipeline licence 78 to Meter Station M054 at the Ballarat City Gate at Clarks Road/Warrenheip Road. The length of the pipeline is  23.0 km.
Licence 143 – T75 Diameter 300 mm Wandong to Kyneton (Wandong to Kyneton)
The pipeline commences from two branch valves on pipeline licence 101 at Wandong Offtake in Wandong travelling in a westerly direction to Meter Station M068 at Kyneton City Gate near Lauriston-Reservoir Road/Harts Road. The length of the pipeline is  59.5 km.
2.1.4 	Principal Transmission System
Northern Metropolitan (Key Plan No. A4-363-1)
Licence 101 (part) – T74 Diameter 600 mm Melbourne-Wodonga-Shepparton (Keon Park to Wollert)
The pipeline commences from the Wollert Compressor Station near Summerhill Road travelling in a Southerly direction to two branch valves on pipeline licence 40 at Keon Park offtake.  The length of the pipeline is  14.1 km.	
Licence 40 (part) -  T18 Diameter 450 mm Dandenong to West Melbourne (Keon Park East – Keon Park West)
The pipeline commences from Metering Station M115 at Keon Park East along Anstey Avenue travelling in a westerly direction to Metering Station M116 at Keon Park West. The length of the pipeline is  0.6 km.

2.1.5 	Principal Transmission System 
South Eastern Metropolitan (Key Plan No. A4-363-2)
Licence 36  -  T16 Diameter 750 mm Dandenong to West Melbourne (Dandenong to West Melbourne) 
The pipeline commences from Dandenong City Gate in Frankston/Dandenong Road, Dandenong via Dandenong Terminal Station to the West Melbourne Regulator Station Footscray Road, West Melbourne. The length of the pipeline is  35.6 km.
Licence 56  -  T15 Diameter 200 mm Dandenong to West Melbourne (Princes Highway to Regent St.)
The pipeline commences  from a branch valve on pipeline licence 36 at Highway Princes along Clyde Street and Regent Street to Meter Station M017 at Regent Street / Burlington Street. The length of the pipeline is  0.8 km. 
Licence 129 (part) – T65 Diameter 750 mm  Dandenong to Princes Highway (Dandenong to Princes Highway)
The pipeline commences from Dandenong City Gate to Dandenong Terminal Station, and travelling in a northerly direction to a branch valve on pipeline licence 36 near Princes Highway/Henty Street. The length of the pipeline is  5.0 km.
Licence 129 (part) – T65 Diameter 500 mm Dandenong to Princes Highway (Princes Highway to Henty Street)
The pipeline branches from the 750 mm pipeline licence 129 mentioned above section travelling in a south easterly direction via Meter station. M003 to a branch valve on the pipeline licence  36. The length of the pipeline is  0.2 km.
2.1.6	Principal Transmission System 
Western Metropolitan (Key Plans Nos. A4-363-2, 3 & 4)
Licence 108 – T33 Diameter 750  mm South Melbourne to Brooklyn (South Melbourne to Brooklyn)
The pipeline commences from two branch valve on pipeline licence 36 along Cecil Street at South Melbourne travelling in a westerly direction to Brooklyn Compressor Station at Old Geelong Road/Jones Road. The length of the pipeline is  12.84 km. 
Licence 122 – T62 Diameter 150 mm Derrimut to Sunbury (Derrimut to Sunbury)
The pipeline commences from two branch valves on pipeline licence 78  at Hopkins Road/Middle Road travelling in a northerly direction to Meter Station M045 at Sunbury City Gate near Government Road/Shields Street. The length of the pipeline is  24.0 km.
Licence 124 – T64 Diameter 450 mm Newport (Supply to Newport Power Station)
The pipeline commences from a branch valve on pipeline licence 108 near Craig Street travelling in a southerly direction to Meter Station M103 at  Newport Power Station. The length of the pipeline is  1.0 km.
Licence 164 – T89 Diameter 150 mm Unichema (Bay Street to Unichema)
The pipeline commences from a branch valve on the pipeline licence  108 at Bay Street/Buckhurst Street travelling in a north westerly direction to the Unichema Meter Station M105 at Boundary Street/Munro Street. The length of the pipeline is  0.44 km.
Licence 162 – T88 Diameter 150 mm Laverton to BHP (Laverton to BHP)
The pipeline commences from Laverton North City Gate travelling in a northerly direction along Fitzgerald Road to the Meter Station M107 (. BHP Methanol  at Fitzgerald Road/William Angliss Road. The length of the pipeline is  1.61 km.
Licence 81  -  T24 Diameter 350 mm Brooklyn to Corio (Brooklyn to Corio)
The pipeline commences from Brooklyn Compressor Station  at Brooklyn travelling in a south westerly direction to Meter Station M065 at Corio City Gate near School Road in Corio. The length of the pipeline is  50.7 km.

2.2 Pressure Regulators.
The assets under this category are installed within the Principal Transmission System and identified as City Gate or Pressure Limiter installations.
The following list of installations identifies each facility by an asset reference number and a Key Data Plan drawing number.
The nominated layout plans, assembly drawings, P&IDs and any changes to such drawings will be available to VENCorp through formal Data Transmittal and Change Management procedures (CHM 232 Safety Case – Change Management for Plant, Equipment and Associated Systems).
Procedures for operating pressure regulators and associated equipment are listed in Appendix 2.- Operational Procedures.

ASSET TITLE	Reference. Number	Key Plan Drawing No.	Site Layout
Drawing No.	Assembly
Drawing No.	P&ID
Drawing No.	
						
Tyers Pressure Limiter
Glengarry Road	P9-3	A4 – 363 – 1	L1-32-11	P9-3-5
P9-3-8	2130-PB-001	
						
Morwell City Gate 
Porters Road	P8-13	A4 – 363 – 1	L1-44-1 
L1-44-2
	P8-13-4
P8-13-5	Not Applicable
Not Automated	
						
Dandenong City Gate
Frankston-Dandenong Road	Q31-3-36	A4 – 363 – 1
A4 – 363 – 2	Q31-3-29
Q31-3-36	Q31-3-5, 22
Q31-3-26
Q31-3-27
Q31-3-40
Q31-3-41
Q31-3-42	Q31-3-55
Q31-3-56	
						
Wollert City Gate
Summerhill Road	P8-16	A4 – 363 – 1
A4 – 363 – 5	L1-37-25
L1-37-48	P8-16-1	L1-37-114
L1-37-115	
						
Wollert Pressure Limiter
Summerhill Road	P8 – 17	A4 – 363 – 1
A4 – 363 – 5	L1-37-48	P8-17-1
P8-17-2	L1-37-114
L1-37-115	
						
Laverton North City Gate
Fitzgerald Road	P8-27	A4 – 363 – 3	L1-49-1
L1-49-4	P8-27-3
P8-27-9	N/A Not Applicable
Not Automated	
						
Hopkins Road Pressure Limiter, Deer Park	P9 – 8 – 1	A4 – 363 – 4	T62-10-7	P9-8-1
P9-8-3	Not Applicable
Not Automated	
						
Clunes Road Pressure Limiter, Maryborough	P9 – 9 – 1	A4 – 363 – 4	T67-11-2	P9-1-1	N/A Not Applicable
Not Automated	
						
Toolamba Road Pressure Limiter, Shepparton	P9 – 5 – 4	A4 – 363 – 5	T71-8-8	P9-5-4
P9-5-6	N/A Not Applicable
Not Automated	
						
Dandenong Pressure Limiter – Greens Road.  (Morwell Backup Regulators)	P8-7
L2-5-44	A4-363-1
A4-363-2	L2-5-44	N/AP6-3-1	3241-PB-001	
						
Clonbinane Pressure Limiter, Clonbinane
	P9-10	A4-363-5	P9-10-5	T74-8-29	5405-PB-003	

2.2.1	Tyers Pressure Limiter
The installation provides a pressure limiting function for gas supplied into the down stream pipeline Licence 121, T63, 500 mm diameter transmission system  and connecting to Morwell Regulator Station. The two branch valve off takes to Tyers City Gate are  from the 750 mm diameter pipeline on the Longford to Dandenong 6890 kPa(g) pressure transmission system.
The site plan L1-32-11 shows the layout details of this installation. Monitoring of the facility operational conditions is by inlet and outlet pressure transmitters and outlet temperature transmitter, the data from which is telemetered to the Dandenong Control Room.  The two branch valves are each able to be remotely opened or closed.  Regulator pressure set point can be remotely adjusted.
The drawings P9-3-8 and P9-3-5 show the general arrangement and instrumentation for this installation.
The purpose of the installation is to achieve delivery temperatures at Meter Station M102 at Jeeralang meter station above minus 2 degrees C through ground heat recovery in the Tyers to Morwell pipeline without the need for heaters under all reasonable conditions of inlet temperature, pressure and flow.
The complete pressure limiter facility is within a security fence enclosure and includes station inlet pipe work connecting from the off-takes on the North and South Longford to Dandenong 750 mm diameter duplicate pipelines and the station outlet including the pig trap assembly serving the 500 m Tyers to Morwell pipeline.  The pressure regulator installation is enclosed in a solid brick building providing protection and security for that asset.  The regulator station may be manually bypassed for maintenance in accordance with TPA procedure PIP 391 Tyers Pressure Limiter- Manual By-Pass.
2.2.2	Morwell City Gate.
The regulator station provides a pressure reduction for gas supplied from Tyers Pressure Limiter into the  “Lurgi Pipeline” Licence 91, T1, 450 mm diameter transmission system and connecting to Dandenong Terminal Station/Dandenong Pressure Limiter.
The site plans L1-44-1 and L1-44-2 show the site layout details of this installation. 
The drawings P8-13-5  and P8-13-4 show the general arrangement and instrumentation for this installation
The complete city gate facility is an above ground assembly within a security fence enclosure and includes station inlet pipe work and pig trap assembly connecting from the 500 mm Tyers to Morwell pipeline and supplies the 450 mm “Lurgi Pipeline”. 
2.2.3	Dandenong City Gate.
The regulator station provides pressure reduction of gas supplied from the Longford to Dandenong MAOP 6890 kPa(g) pipeline system and delivering into the 750 mm diameter MAOP 2760 kPa(g) transmission pipeline to West Melbourne.
The drawings Q31-3-29 and Q31-3-36 show the site layout of this facility.
The regulator assembly includes remote control capability for regulator run shutoff and outlet pressure set point adjustment that is operated and maintained in accordance with TPA procedures listed in Appendix 2.
The drawings Q31-3-5, 22, 26, 27, 40, 41 and 42 show the general arrangement and flow diagram details for this installation.
The regulator assembly has provision for the addition of three extra assemblies.
The complete city gate facility is an above ground complex within a security fence enclosure and includes the station pig trap receiving assembly from the Longford Pipeline Licence 75, T60, 750 mm diameter and the outlet station pipe work connecting to the 750 mm diameter transmission pipeline to West Melbourne.
2.2.4	Wollert City Gate
The regulator station provides pressure reduction of gas supplied into the  “Keon Park” transmission pipeline Licence 101, T74, 600 mm diameter connecting to the transmission pipeline assets of the distribution companies Westar and Stratus at Meter stations M116 and M115 respectively.
The general site plan L1-37-48 shows the layout details of this installation. 
The regulator assembly includes remote control capability for regulator run shutoff and outlet pressure set point adjustment that is operated and maintained in accordance with TPA procedures listed in Appendix 2.
The drawings P8-16-1  and L1-37-25 show the general arrangement and flow diagram details for this installation
The complete city gate facility is an above ground complex within a security fence enclosure and includes the station pig trap receiving assembly from the Pakenham – Wollert pipeline Licence 141, T61, 750 mm diameter and the outlet station pipe work  connecting to the Wollert Compressor Station and Keon Park pipeline .
2.2.5	Wollert Pressure Limiter
The pressure limiter provides a back-up facility to the Wollert City Gate installation in the event of a major city gate failure or shut-down for maintenance operations.   The installation under normal operational conditions is therefore not on line.
The pressure limiter also may be operated as a pressure limiter  for the Wollert to Wodonga pipeline.  The regulator is normally isolated and bypassed.
The drawings P8-17-1 and P8-17-2 show the general arrangement and auxiliary control diagram for this installation.
The  pressure limiter is an above ground assembly and forms part of the overall Wollert City Gate installation.
2.2.6	Laverton North City Gate.
The city gate provides pressure reduction of gas from the Brooklyn Compressor Station to Corio City Gate transmission pipeline Licence 81, T24, 350 mm diameter and supplies gas into the transmission pipeline Licence 162, T88, 150 mm diameter connecting to the BHP Methanol Plant.
The site plans L1-49-1 and L1-49-4 show the layout of this city gate installation.
The drawings P8-27-9  and P8-27-3 show the general arrangement and auxiliary diagram details for this installation.
The complete city gate facility is an above ground assembly installed within a security fence enclosure and includes the station inlet  pipe work connecting from the Brooklyn-Corio transmission pipeline and outlet pipe work connecting to the pipeline supplying the BHP Methanol Plant.  The installation is installed adjacent to another city gate installation which is a Westar asset.
The city gate is located within a brick building on TPA property.
2.2.7	Hopkins Road Pressure Limiter.
The pressure limiter provides pressure reduction of gas from the Brooklyn Compressor Station to the Ballarat/Bendigo transmission pipeline Licence 78, T56, 200 mm diameter and supplies gas into the transmission pipeline Licence 122, T62, 150 mm diameter connecting to Sunbury and other TPA custody transfer meters.
The drawings P9-8-1  and P9-8-3 show the general arrangement and auxiliary diagram details for this installation.
The complete pressure limiter facility is an above ground assembly installed within a security enclosure and includes the station inlet  pipe work connecting from the Brooklyn-Ballarat/Bendigo transmission pipeline and outlet pipe work including pig trap assembly connecting to the Sunbury pipeline. 
2.2.8	Clunes Road Pressure Limiter.
The regulator installation provides gas pressure control down stream of Line Valve 3 of the Guildford – Maryborough transmission pipeline Licence 125, T67, 150 mm diameter and supplies gas into the Maryborough City Gate installation which is a Westar asset.  
The drawings T67-11-2 shows the layout of this pressure limiting regulator installation. 
The drawing P9-1-1 shows the general arrangement details for this installation.  There is no telemetry from this facility.
The complete pressure limiter facility, which is an in-ground pit assembly, is within a fenced enclosure and includes underground station inlet and outlet  pipe work connecting to the Guildford – Maryborough transmission pipeline Line Valve 3 assembly. 
2.2.9	Toolamba Road Pressure Limiter.
The regulator installation provides gas pressure control down stream of Line Valve 4 of the Shepparton – Tatura transmission pipeline Licence 132, T71, 200 mm diameter and supplies gas to the Tatura, Merrigum, Kyabram, Tongala and Echuca Meter stations.
The drawing P9-5-4 shows the layout of this pressure limiting regulator installation. .
The drawings P9-5-4 and P9-5-6 show the general arrangement and auxiliary control details for this installation..
The complete pressure limiter facility is an above ground assembly installed within a security enclosure and includes inlet and outlet pipe work connecting to transmission pipeline Line Valve 4 assembly.
2.2.10	Dandenong Pressure Limiter
The facility is also known as the “Lurgi backup regulator”, and is operated to support receipt pressures at Dandenong from the Morwell to Dandenong “Lurgi” 450 mm diameter pipeline.
The drawing L2-5-44 shows the layout of this facility. 
The facility is fitted with remote outlet pressure set point control and comprises two runs each fitted with active and monitor regulators.
The facility provider pressure reduction from a maximum 2760 kPa(g) to a typical 1700 kPa (g) minimum.
The complete regulator assembly is an above ground facility installed within the security fencing of the Dandenong Terminal Station complex.
The facility includes a gas water bath type heater installed to offset the Joule-Thompson cooling effect produced by the pressure reduction through the regulator assembly. 
2.2.11	Clonbinane Pressure Limiter (Expansion after 9 December, 1997)
This pressure limiter facilitates the input of gas from NSW via the 450 mm “Interconnect” pipeline.
The pressure limiter facility is located at LV5 in the Wollert to Wodonga pipeline, just north of the bifurcation to Kyneton.
The drawing P9-10-5 shows the layout of the facility.
The drawings T74-8-29 and 5405-PB-003 show the general arrangement and auxiliary diagram details for this installation.
The purpose of the facility is to regulate pressures in the Northern Victoria market to facilitate import of gas through the Interconnect at Culcairn. The system is required to automatically adjust the station setpoint to match the available pressures at Culcairn.  

2.3	Compressor Stations.
The assets under this category are installed within the Principal Transmission System.  The engines and compressors at each facility are identified in the Compressor Stations Key Data Plan No. A1-301-1 in Appendix 3.
The compressor stations provide appropriate gas pressures and inventory control utilising the  transmission pipeline system as detailed in this document. 
The following list of installations identifies each facility by an asset reference number and a Key Plan drawing number, and identifies relevant P&IDs.

ASSET TITLE	Reference. Number	Key Plan 
Drawing No.	P&ID
Drawing No.	
				
Gooding CS	C4-2-4	A4-363-1	1100-PB-001
TO
1100-PB-010	
				
Brooklyn CS	C1-0-39	A4-363-2
A4-363-3	1200-PB-006
TO
1200-PB-026	
				
Wollert CS	C7-0-23	A4-363-1	1300-PB-120
TO
1300-PB-128	

Compressor unit staging and gas turbine facilities are also identified in the Compressor Stations Key Data Plan A1-301-1 and as amended by the parties from time to time.
2.3.1	Gooding Compressor Station.
The compressor station provides gas compression on the Longford – Dandenong 750 mm diameter MAOP 6895 kPa(g) pressure pipeline at the location of Line Valve 5, under Licence 75, T60.
The compressor station is fitted with four (4) “Centaur” gas turbine driven centrifugal compressors manufactured by Solar Turbines of the U.S.A.  Each compressor set is rated at a nominal power of 2850 kW.
The four machines are housed in a solid brick sound attenuated building with the compressor control room, electrical switch room, staff amenities, stand-by power generator room and maintenance workshop located in the annex adjacent to the compressor building. 
The compressor station facilities include underground inlet station pipe work connecting to four compressor suction liquid separators (one dedicated to each machine) with associated inlet and outlet header pipe work, connecting into the Longford-Dandenong pipeline system.  Other features of the facility include station inlet and outlet pipe work blowdown manifolds and blowdown stack, condensate collection pipe work and storage vessels, lubricating oil coolers, lubricating oil storage facilities, gas turbine fuel gas supply system, station and compressor unit controls and SCADA facilities to the VENCorp control room.
The complete facility is enclosed within an inner and outer security  chainwire fence and locked security gates.
2.3.2	Wollert Compressor Station.
The compressor station provides gas compression from the Pakenham-Wollert outer ring main being a 750 mm diameter MAOP 6890 kPa(g) pressure pipeline and delivering into the Principal Transmission System for Shepparton, Echuca, Albury and the inter-connect to New South Wales.
The compressor station has three (3) “Saturn” gas turbine driven centrifugal compressors manufactured by Solar Turbines of the U.S.A.  Each compressor set is rated at a nominal power of 850 kW. 
The three machines are housed in a solid brick sound attenuated building with the compressor control room, electrical switch room, staff amenities, stand-by power generator room and maintenance workshop located in the annex adjacent to the compressor building. 
The compressor station facilities include underground inlet station pipe work connecting to a single liquid separator with associated header pipe work and station outlet pipe work with gas after-coolers connecting into the Wollert/Albury pipeline system.  Other features of the facility include station inlet and outlet pipe work blowdown manifolds and blowdown stack, condensate collection pipe work, cooling water storage tanks, lubricating oil coolers, lubricating oil storage facilities, gas turbine fuel gas supply system, station and unit controls and SCADA facilities to the VENCorp control room
The complete facility is installed within a site secured chain wire security fence with locked security gates.
2.3.3	Brooklyn Compressor Station.
The compressor station provides gas compression from the 750 mm diameter MAOP 2760 kPa(g) South Melbourne to Brooklyn pipeline  and delivers into the Brooklyn to Corio pipeline and Brooklyn to Ballarat pipeline.
The compressor station has two (2) Centaur and six (6) Saturn gas turbine driven centrifugal compressors rated at 2850 kW per unit and 850 kW per unit respectively.  Two (2) of the Saturn compressors have been upgraded to 950 kW since December 97.
Two Centaur and two Saturn compressors are packaged skid mounted assemblies and the other four Saturn compressors are housed in a solid brick, sound attenuated room. 
The compressor control rooms, electrical switch rooms, staff amenities, stand-by power generator room and maintenance workshop are located in adjacent  buildings. 
The compressor station facilities include underground inlet station pipe work connecting to compressor suction liquid separators (one dedicated to each machine) with associated inlet header pipe work. The station outlet pipe work includes gas after-coolers and headers with pipe work connecting into the Principal Transmission System for Geelong, and Ballarat. 
Other features of the facility include station inlet and outlet pipe work blowdown manifolds and blowdown stack, condensate collection pipe work and storage vessels, lubricating oil coolers, lubricating oil storage facilities, gas turbine fuel gas supply system, station and unit controls, and SCADA facilities to the VENCorp control room.
The facility is installed within a site secured chainwire security fence with locked security gates.

2.4	Pipelines Valves
The assets under this category within the Principal Transmission System and identified as Linevalves, Branch Valves, Pig Trap Valves, Pig Trap Kicker Valves and Blowdown Valves.  
The Linevalves, Branch Vales and Blowdown Valves are located in accordance with the following key plan drawings, copies of which are included in the Appendix 1.
•	Principal Transmission System, Longford – Dandenong – Wollert 
A –363 – 1	
•	Principal Transmission System,  750 diameter Dandenong – West Melbourne – Brooklyn
A4 – 363 – 2
•	Principal Transmission system, Brooklyn – Geelong
A4 – 363 3
•	Principal Transmission System, Ballarat – Bendigo 
A – 363 – 4
•	Principal Transmission System, Wollert – Albury – Echuca – Koonoomoo – Culcairn 
A – 363 – 5 (Koonoomoo and Culcairn installed after 9 December, 1997)
The Pig Trap Valves and Pig Trap Kicker Valves are installed at the termination of each piggable pipeline to facilitate the pigging operation.  Drawings will be made available to VENCorp at the time of pigging. 
Descriptions of each type of pipeline valves are listed as below:
2.4.1	Linevalves
Linevalves are provided in the Principal Transmission System to isolate the pipeline in segments for maintenance, operation, repair and for protection of the environment and public in the event of loss of pipeline integrity. Usually, they have by-pass facilities and provision for “blowing down” the section of main upstream and downstream of the valve operators and blowdown assemblies. The linevalves are usually located within a wire enclosure  in cross country pipelines and in pits in built-up area. The Mainline valves are normally in an “Open” Position. 
2.4.2	Branch Valves
Branch Valves are installed at the branches of the pipeline to provide isolation between the offtake and the pipeline  . Branch Valves are normally in an “Open” Position. 
2.4.3	Pig trap valves
Pig trap valve is provided at the termination of each piggable transmission pipeline as part of pigging pipe works to isolate the pipeline and the pig trap. The Pig trap valves are normally in a “Close” position. 
2.4.4	Pig trap kicker valves 
Pig trap kicker valves are provided at pigging pipe works to facilitate the launching and receiving of the pig during pigging operation. The Pig trap kicker valves are normally in a “Close” position. 
2.4.5	Blowdown valves
Blowdown valve is to facilitate pipeline blowdown, flaring, purging and pipeline equalisation prior to line valve operation by providing a throttling facility. The bypass assembly enables the line valve to be operated to fully closed position for a short period and still maintain gas flow. The valve status/position depends on its location in the pipeline system listed on the “TPA’s Field Operations Department – Critical TP Valves” in Appendix 4.
2.5	Telemetry.
The telemetry system provided under this Service Envelope includes Remote Telemetry Units (RTUs) located at each compressor station (Gooding, Brooklyn, Wollert), receipt points on the PTS (Longford, LNG, Culcairn), major valve installations (LV9 and Barnawartha), Tyers and Clonbinane pressure limiters, and Wollert and Dandenong City Gates.  Clonbinane Pressure limiter RTU is accessed via dial-up through the PSTN system.  Telemetry to delivery point meters is provided under the CTM section of the Excluded and Competitive Services Schedule.
The telemetry system is the primary means of monitoring and control of TPA assets by VENCorp, and is designed to carry data for both VENCorp and TPA. Data interfaces, storage requirements and alarm levels are specified by TPA and agreed by VENCorp.  Changes to this specification are managed under the TPA change management procedure CHM 232 and are subject to agreement of both parties.
2.6	Odorisation.
Natural gas is delivered by Esso from its Longford natural gas processing plant into the Principal Transmission System via the Longford Metering Station. Odorant is injected into the natural gas stream at the Longford Metering facility to achieve odorant concentration levels as required by the Gas Industry Act 1994 and/or Gas Safety Act 1997and/or relevant subordinate legislation.
The operation, maintenance and control of the Longford odorant installation is the responsibility of TPA. VENCorp will provide monitoring services to TPA in line with specific TPA procedures as listed in Appendix 2.
The facility is located within the site of the Longford Metering station. The main components of the odorant plant includes two(2) stainless steel storage tanks each of 20,000 litres liquid capacity within a concrete wall bund, dual odorant injection pumps complete with controls to achieve odorant injection proportional to gas flow rate and in concentration required by relevant legislation.  A third injection pump is available for local manual operation in the event of failure of the main injection pump system.
Monitoring of odorant dosing rate achieved by the system is provided by an RTU supervisory system which provides data and alarms to the VENCorp Control Room. 

3.	DESIGN CAPABILITY.
This section describes the capability of the TPA assets in the Service Envelope with respect to operation of the system, and the specific design capability of these assets. 
The system is made available for carriage of gas which meets the gas specification for transmission systems in the Gas Safety (Gas Quality) Regulations 1998 or any other like applicable laws or regulations.
In line with Good Practice VENCorp shall ensure that the gas injected into the Principal Transmission System is free from objectionable odours and from dust and other solid or liquid matters, waxes, gums or gum forming constituents which may interfere with its merchantability or cause injury to or interference with the proper operation of the pipelines, meters, regulators or other appliances through which it flows.
3.1	Pipelines
	To facilitate VENCorp to operate the TPA’s transmission pipeline for transportation of natural gas to all defined transfer points within the Principal Transmission System, the following key design parameters in relation to the pressure control of the pipeline system are determined.
-	Maximum Allowable Operating Pressure (MAOP)
-	Recorded Pipeline Length
-	Pipeline Internal Diameter
-	Internal Lining of the Pipeline (where applicable)
Pipeline capability presumes temperatures of operation between minus 20 deg. C and 45 deg. C.
Details of the above design parameters for each licensed pipeline are summarised in the TPA “Pipeline’s Specifications” Appendix 5. 
Good Practice for pipelines does not require redundant or stand-by pipeline assets.
3.2	Pressure Regulators
Regulator design capacities and over-pressure device set-points where applicable are provided in the “Regulator Capacity Table” in Appendix 6.  These capacities are associated with a minimum inlet pressure  and a design outlet pressure set-point below which the nominated capacity may be severely restricted.
Good Practice at these facilities comprises the number of duty runs and stand-by runs as designated in Appendix 6.  The capability of each facility is that provided by the total of the duty runs.  
3.2.1	Tyers Pressure Limiter.
The pressure reduction station is designated as P9-003.  The details of its design, construction and configuration are defined by drawing P9-3-8  and the details of its control and instrumentation systems are defined by drawing P9-3-5.
The design purpose of the facility is to defer the installation and operating costs associated with heaters when very low temperatures would otherwise be experienced as a result of the Joule-Thompson cooling at regulator stations.
The assembly inlet and outlet valving and pipe work is designed as a Class 600 pressure rating system and hydrostatically tested for M.A.O.P. of 6895 kPa(g).
The pressure reduction regulator is a single 200 mm diameter “Jetstream“ J8-60 Class 600 unit complete with pneumatic controllers and providing pressure control from an inlet pressure (maximum) of 6890 kPa(g) to the downstream gas pressure set point of 4400 kPa(g), determined by VENCorp and adjusted by remote operation.
Good Practice at this facility comprises one duty run and no stand-by runs.  A by-pass is provided for the purposes of maintenance or break-down. 
3.2.2	Morwell City Gate.
The pressure reduction station is designated as P8-013.  The details of its design, construction and configuration are defined by drawing P8-13-5 and details of its control and instrumentation systems are defined by drawing P8-13-4.
The assembly inlet valving and pipe work up to and including the outlet pipe spool connecting to the outlet valve is designed as a Class 600 system MAOP 7070 kPa(g) and the outlet valve and down stream system being designed as a Class 300 system MAOP 2760 kPa(g).
The pressure reduction regulator assembly is arranged as a dual run system with 200 mm diameter “Welker Jet” and “Jetstream” Class 600 regulators in active and monitor configuration and providing a pressure reduction from 4400 (typical) kPa(g) inlet to 2760 kPa(g) outlet.  The inlet valves to each of the two runs are fitted with pneumatic actuators for slam shut over pressure protection of the down stream system.
3.2.3	Dandenong City Gate.
The pressure reduction station is designated as P8-00.  The details of its design, construction and configuration are defined by drawings Q31-3-41 and Q31-3-42 and details of its control and instrumentation systems are defined by drawing Q31-5-88.
The assembly inlet valving and pipe work up to and including the outlet pipe spool connecting to the outlet valve is designed as a Class 600 system MAOP 6895 kPa(g) and the outlet valve being designed as a Class 300 system connecting to the 750 mm Dandenong to West Melbourne pipeline system.
The pressure reduction regulator assembly is arranged as a multiple run system with seven (7) runs each with a  200 mm diameter “Jetstream” Class 600 regulator active 200 mm diameter Fisher V Ball Class 600 control valve in and monitor configuration for each run and providing a pressure reduction from 6890 (maximum) kPa(g) inlet to 2760 kPa(g) outlet.  The inlet valves to each of the seven (7) runs are fitted with pneumatic actuators for slam shut over pressure protection of the down stream system. 
3.2.4	Wollert City Gate.
The pressure reduction station is designated as P8-016.  The details of its design, construction and configuration are defined by drawing P8-16-1 and details of its control and instrumentation systems are defined by drawing P8-16-2.
The assembly inlet valving and pipe work up to and including the outlet pipe spool connecting to the outlet valve is designed as a Class 600 system MAOP 6890 kPa(g) and the outlet valve and down stream system being designed as a Class 600 system MAOP 7400 kPa(g).
The pressure reduction regulator assembly is arranged as a multiple run system with three (3) runs each of 200 mm diameter “Jetstream” Class 600 regulator in active and 200 mm diameter Fisher Hi-Ball Class 600 control valves in monitor configuration for each run and providing pressure reduction from 6900 (maximum) kPa(g) inlet to 2780 kPa(g) outlet.  The outlet valves on each of the three (3) runs are fitted with pneumatic actuators for slam shut over pressure protection of the down stream system. 
3.2.5	Wollert Pressure Limiter 
The pressure reduction station is designated as P8-17.  The details of its design, construction and configuration are defined by drawing P8-17-1 and details of its control and instrumentation systems are defined by drawing P8-17-2.
The assembly inlet valving and pipe work up to and including the outlet pipe spool connecting to the outlet valve supplying the 7400 kPa Wollert to Wodonga pipeline is designed as a Class 600 system MAOP 6890 kPa(g) and the outlet valve and down stream system being designed as a Class 600 system 7400 kPa(g).
The assembly is also fitted with a bypass allowing gas from the Pakenham to Wollert pipeline to flow freely into the Wollert to Wodonga pipeline during periods of non-compression.  Key isolating valves are able to be opened and closed remotely as designated by associated P&ID Flow Diagram Nos. L1-37-114 and L1-37-115.
The pressure reduction regulator assembly is a single run system with 200 mm diameter “Welker Jet” Class 600 regulators in active and monitor (with monitor over-ride) configuration.  
The outlet valve on the single run is fitted with a pneumatic actuator for slam shut over pressure protection of the down stream system when feeding the Keon Park pipeline. Good practice at this facility comprises one duty and no stand-by runs. 
3.2.6	Laverton North City Gate.
The pressure reduction station is designated as P8-27.  The details of its design, construction and configuration are defined by drawing P8-27-9 and details of its control and instrumentation systems are defined by drawing P8-27-3.
The assembly inlet valving and pipe work up to and including the outlet pipe spool and outlet valve is designed as a Class 600 system MAOP 7390 kPaG and the outlet down stream system being designed as a Class 300 system MAOP 2760 kPaG.
The pressure reduction regulator assembly is a dual run system with 50 mm diameter “Welker Jet” Class 600 regulators in active and monitor (with monitor over-ride) configuration and providing pressure reduction from 5000 (typical) kPa(g) inlet to 2000 kPa(g) outlet.  The inlet valve on each of the two runs is fitted with a pneumatic actuator for slam shut over pressure protection of the down stream system. 
3.2.7	Hopkins Road Pressure Limiter.
The pressure reduction station is designated as P9-008.  The details of its design, construction and configuration are defined by drawing P9-8-1 and details of its control and instrumentation systems are defined by drawing
P9-8-3.
The design purpose of the facility is to defer the installation and operating costs associated with heating when very low temperatures would otherwise be experienced as a result of the Joule-Thompson cooling at regulator stations
The assembly inlet valving and pipe work up to and including the outlet pipe spool and outlet valve is designed as a Class 600 system MAOP 7390 kPa(g) and the outlet down stream system being designed as a Class 600 system MAOP 7390 kPa(g).
The pressure reduction regulator assembly is a dual run system with  a single 50 mm diameter “Welker Jet” Class 600 regulator per run and providing pressure reduction from 5000 (typical) kPa(g) inlet to 2600 kPa(g) outlet. 
3.2.8	Clunes Road Pressure Limiter.
The pressure reduction station is designated as P9-1.  The details of its design, construction and configuration are defined by drawing P9-1-1 and details of its control and instrumentation systems are defined by drawing
P9-1-5.
The design purpose of the facility is to defer the installation and operating costs associated with heating when very low temperatures would otherwise be experienced as a result of the Joule-Thompson cooling at regulator stations
The assembly inlet valving and pipe work up to and including the outlet pipe spool and outlet valve is designed as a Class 600 system MAOP 7390 kPa(g) and the outlet down stream system being designed as a Class 600 system MAOP 7390 kPa(g).
The pressure reduction regulator assembly is a dual run system with  a single 50 mm diameter “Grove” Class 600 regulators per run and providing pressure reduction from 6800 (maximum) kPa(g) inlet to 2500 kPa(g) outlet. 
3.2.9	Toolamba Road Pressure Limiter.
The pressure reduction station is designated as P9-5.  The details of its design, construction and configuration are defined by drawing P9-5-4 and details of its control and instrumentation systems are defined by drawing
P9-5-6.
The design purpose of the facility is to defer the installation and operating costs associated with heating when very low temperatures would otherwise be experienced as a result of the Joule-Thompson cooling at regulator stations
The assembly inlet valving and pipe work up to and including the outlet pipe spool and outlet valve is designed as a Class 600 system MAOP 7390 kPa(g) and the outlet down stream system being designed as a Class 600 system MAOP 7390 kPa(g).
The pressure reduction regulator assembly is a dual run system with  a single 100 mm diameter “Fisher” Class 600 control valve per run and providing pressure reduction from 3100 (minimum) kPa(g) inlet to 2760 kPa(g) outlet. 
3.2.10	Dandenong Pressure Limiter
The pressure reduction station is designated as P8-007.  The details of its design, construction and configuration are defined by drawings P6-3-1 and details of its control and instrumentation systems are defined by drawing P6-3-3.
The assembly inlet valving and pipe work up to and including the outlet pipe spool connecting to the outlet valve is designed as a Class 600 system MAOP 6895 kPa(g) and the outlet valve being designed as a Class 300.
The pressure reduction regulator assembly is arranged as a dual run system of 200 mm diameter “Jetstream” Class 600 regulators in active and monitor configuration for each run and providing pressure reduction from 2760 (maximum) kPa(g) inlet to typical 1700 kPa(g) outlet.  The inlet valves to each run are fitted with pneumatic actuators for slam shut over pressure protection of the down stream system. 
3.2.11	Clonbinane Pressure Limiter ( Installed after 9 December, 1997)
This installation is designed to reduce pressure in the section of pipeline north of line valve 5 in the 300 mm Wollert to Wodonga pipeline during supply emergency.  Line valve 5 must be closed for the pressure limiter to operate.
The details of its design, construction and configuration are defined by drawing T74-8-29 and details of its control and instrumentation systems are defined by drawing T74-8-30.  The whole assembly is designed as a Class 600 system MAOP 7400 kPa.
The pressure limiter consists of one 100NB single stage regulator run and a parallel 80NB actuated bypass.  The 80NB bypass is designed to provide automatic opening and closing capabilities.  The bypass must be set to automatically open when the regulator failed to maintain outlet pressure, and automatically close when the outlet pressure is restored above the regulator set point. 
There are no fixed set points for the installation.  The pressure limiter must be manually adjusted to meet required operations prior to commissioning.  The set-point for the regulator can be varied between 3450 kPa and 4600 kPa, and for the by-pass between 2300 kPa and 4800 kPa.
3.3 	Compressor Stations
The compressor stations are equipped with industrial gas turbines with Nominal Power capabilities summarised as follows;
a)	Gooding Compressor Station – combined Nominal Power of 8550 kW at 15 deg. Celsius ambient (equivalent to 3 Centaur units).
b)	Brooklyn Compressor Station
Geelong – combined Nominal Power of 5400 kW at 15 deg. Celsius (equivalent to 1 Centaur and 3 Saturn units)
Ballarat – combined  Nominal Power of 850 kW at 15 deg. Celsius (equivalent to 1 Saturn unit)
c)	Wollert Compressor Station – combined Nominal Power of 1700 kW at 15 deg. Celsius (equivalent to 2 Saturn units)
These Nominal Power capabilities will vary when operating conditions differ from standard conditions as specified in this Service Envelope Agreement and the attached schedules. Supplier references for compressor performance details are listed in Compressor Stations Key Data Plan No. A1-301-1 in Appendix 3. These factors include, but are not limited, to non-standard ambient air temperatures, pipeline service conditions, and in-service  equipment wear and tear consistent with the approved maintenance schedule and supplier recommendations (Solar –Gas Turbine Operations and Maintenance Instructions CS1-SB-167 and 168 and CS1-CB-306), as determined from the manufacturer’s proprietary engine and compressor performance evaluation software (Ref: Solar Centaur T4002 TCB2REV0.EXE and Solar Saturn T1202 TSB2REV0.EXE) which is provided to VENCorp. TPA shall provide updates to the software under its change management system.
At each compressor station complex, good design practice comprises the provision of spare capacity equivalent to the largest duty unit in use (within the Service Envelope).  It does not comprise of the provision of redundant common elements at each compressor station.
3.3.1 	Gooding Compressor Station
The compressor sets are configured to operate in a parallel mode such that the total station flow is divided nominally equally among the operating machines.
As Gooding Compressor Station is not fitted with a gas discharge aftercooling system, recycling of gas through the compressors is limited due to the potential for recycled gas overheating.  The station is designed that if the prevailing pipeline operating conditions dictate that recycling of gas through a compressor would be required to prevent surging, the operating compressor is automatically shut down by the unit anti-surge control logic in a non-lock out condition.
The maximum station discharge pressure and temperature at Gooding is 6890 kPaG and 45°C respectively. Gas discharge temperatures in excess of 50°C and pressures in excess of 6890 kPaG will initiate a shut down of all compressor units operating.  Units may be restarted when the temperatures and pressures return within permissible limits.
Units are not available during these automatic shut-downs.
The station is fitted with remote compressor unit start, stop, discharge pressure set point and initiation of a station emergency shut down via the VENCorp control room.  In addition, a remote “reset” function is available to reset the machine status to “ready” in the case of a compressor unit malfunction which shuts down the unit in a “non lock out” condition. Any machine that shuts down and “locks out” requires manual intervention at the station to enable a restart.  If a unit lockout fault occurs, TPA shall attend site within 3 hours of notification by VENCorp.  Also provided is a remotely operated gas turbine driver speed control for the station  which allows the VENCorp operator to control engine speed from approx. 85% to 100%.
3.3.2	Brooklyn Compressor Station 
The compressor station pipe work is configured such that all compressor units may draw gas from the station inlet header and discharge to the Geelong pipeline.  The Saturn compressor sets may also draw gas from the station inlet header or the Geelong header and discharge to the Ballarat pipeline.  The piping configuration allows for series (double staging) compression into the Ballarat pipeline.  Alternate operating configurations are shown in Appendix 7.
The compressor station discharge pipework into the Geelong pipeline and the Ballarat/Bendigo pipeline are connected with an actuated isolation “crossover” valve within the confines of the station pipework.  With the crossover valve open the discharge pressure produced by the compressor sets is common to both discharge pipelines.  
All compressor units at Brooklyn are fitted with a gas discharge aftercooling system.  As a result, recycling of gas through the compressors is permissible, although not desirable for periods exceeding half an hour. The station is designed that if the prevailing pipeline operating conditions dictate that recycling of gas through the compressor(s) is required to prevent surging, the compressor unit(s) in recycle should not be allowed to operate in this gas recycling condition for a period exceeding one-half hour before being shut down.
The maximum station discharge pressure and temperature into both the Geelong pipeline and Ballarat/Bendigo pipeline is 7390 kPaG and 45°C respectively. Gas discharge temperatures in excess of 50°C  and pressures in excess of 7390 kPaG will initiate a shutdown of all compressor units operating.  Units may be restarted when the temperatures and pressures return within permissible limits.
Units are not available during these automatic plant shut-downs.
The station is fitted with remote compressor unit start, stop and initiation of a station emergency shutdown, via the VENCorp control room.  In addition, a remote “reset” function is available to reset the compressor unit status to “ready” in the case of a compressor unit malfunction which shuts down the unit in a “non lock out” condition and for which the fault condition no longer exists.  This presumes the alarm which shut the unit down in the first instance can be cleared. Any compressor unit which shuts down and “locks out” requires manual intervention at the station to enable a restart.
At Brooklyn, one (1) Centaur and two (2) Saturn compressors are provided as spare capacity and may, as and when required, be shifted to other parts of the Gas Transmission System or elsewhere in order to enhance the capacity of the Gas Transmission System.
3.3.3	Wollert Compressor Station
The compressor sets are configured to operate in parallel such that the total station flow is divided nominally equally among the operating machines.
As Wollert Compressor Station is fitted with a gas discharge aftercooling system, recycling of gas through the compressors is permissible, although not desirable for periods exceeding half an hour.  The station is designed that if the prevailing pipeline operating conditions dictate that recycling of gas through the compressor(s) is required to prevent surging, the compressor unit(s) should not  be allowed to operate in this gas recycling condition for a period exceeding one-half hour before being shut down.
The maximum station discharge pressure and temperature at Wollert is 7400 kPaG and 45°C respectively.  Gas discharge temperature in excess of 50°C and pressures in excess of 7400 kPaG will initiate a shut down of all compressor units operating.  Units may be restarted when the temperatures and pressures return within permissible limits.
Units are not available during these automatic plant shut-downs.
The station is fitted with remote compressor unit start, stop and initiation of a station emergency shutdown, via the VENCorp control room.  In addition, a remote “reset” function is available to reset the machine status to “ready” in the case of a compressor unit malfunction which shuts down the unit in a “non lock out” condition. Any compressor unit which shuts down and “locks out” requires manual intervention at the station to enable a restart 
3.4	Pipeline Valves
As part of the major facilities within the Principal Transmission System, the following key operating parameters of the pipeline valves in relation to the pressure control of the pipeline system are determined.
- 	Maximum Allowable Operating Pressure (MAOP)
-	Size and Class of the valve
-	Recorded Valve location
- 	Type of the Valve such as ball valve or gate valve.
-	Status of each Valve, either “Open” position or “Close” position
 	Control of the Valve, either “remote control” or “manual control” and/or “Automatic Line Break”.
Details of the above operating parameters for each valves are summarised in the “TPA’s Field Operations Department – Critical TP Valves”  in Appendix 4.
3.5	Telemetry.
The telemetry system is designed to provide analog data for fringe points, supply points and compressor stations.
The data provided will be for the following system conditions:

	Pressure	Temperature	Flow (vol)	
fringe point	yes	n/a	n/a	
supply point	yes	Yes	yes  (±1.5%)	
compressor stations	yes	Yes	yes  (±10 %)	

Gas composition, hydrogen sulphide, total sulphur and moisture content are telemetered from Longford.
At compressor stations, remote control of stop and start of compressors, and turbine speed control at Gooding are provided.
The minimum poll period is 10seconds.
3.6	Odorisation.
The design parameter for the odorant plant at the Longford facility is to achieve an odorant concentration level of 7 milligrams per standard cubic metre of natural gas leaving the Longford Metering Station.
The odorant concentration level is that required by law under the Gas Industry Act 1994 and/or the Gas Safety Act 1997 and/or  the Gas Safety (Gas Quality) Regulations 1998 or any other like applicable laws or regulations.
Storage capacity is designed to permit receipt of odorant stock without interruption to gas supply.
Pumps have been designed with redundancy to permit continuous operation in event of pump failure or planned maintenance. Power gas supply is provided by regulators in a redundant configuration from the meter station M001 outlet header and gas is vented to the continuous flare.
The facility is designed to comply with the relevant codes of practice governing  the storage and handling of hazardous materials and relevant environmental rules.
Monitoring is achieved by telemetry of the odorant concentration to the VENCorp Transmission Operations Centre where alarms are alarms for excursions of concentration outside specified limits.

4.	OPERATING CONSTRAINTS.
The availability of the Principal Transmission System assets to VENCorp shall be 
(i)	limited by the constraints detailed in the following clauses for each of the asset types, and 
(ii)	shall take into account the requirements of TPA to undertake maintenance works on those assets in accordance with equipment suppliers recommendations, good practice and maintenance schedules developed by TPA and approved by VENCorp under  this Service Envelope Agreement.
The specified operating constraints within the Service Envelope shall define the limits within which VENCorp shall operate the assets in order to obtain the documented capability and availability of each asset. 
4.1 	Pipelines.
The pipelines at various locations, as mentioned in section 2.1.1 are subject to operating constraints the details of which will be defined in this Schedule to ensure VENCorp has all relevant information available to correctly and safely operate the pipelines in accordance with relevant legislative requirements and Codes of Practice and the TPA’s requirements that apply to the pipelines. 
Listed below is a compilation of operating constraints and guidelines that shall be complied with by VENCorp operators in the operation of pipeline system.
VENCorp shall operate the pipelines in compliance with applicable licence conditions.
The maximum operating pressure of the pipelines shall be limited to the Maximum Allowable Operating Pressure (MAOP) as specified in the pipeline licence condition. 
The inlet pressure to any city gate or TPA pressure limiter, during periods of peak gas demand shall not fall below the design pressure specified in the “Regulator Capacity Tables in Appendix 6. 
The maximum flows (in actual cubic metres per hour or kilograms per hour) permitted to flow through any TPA Custody Transfer Meter (CTM) delivery point is specified as Maximum Meter Capacity in the Transfer Point Plans A1-364-1 to 5 in Appendix 1.
The maximum and minimum allowable temperatures of the gas inside the pipeline shall be limited to 45oC and –20oC respectively.
The Principal Transmission System is not equipped with liquid removal facilities to enable the removal of liquids as may be injected into the system at either the PTS injection points or at each compressor station.
4.2	Pressure Regulators.
The Pressure Limiters may be operated up to the maximum inlet pressure.
The pressure regulator installations at the various locations, as tabulated in section 2.2, are subject to operating constraints the details of which will be defined in this document to ensure VENCorp has all relevant information available to correctly and safely operate these facilities in accordance with the original design criteria for each facility and in accordance with the relevant legislative requirements and Codes of practice that apply to these facilities.
In addition, VENCorp shall operate the pressure regulator facilities in such a manner that TPA is able to conduct its activities to do with modification, upgrading, maintenance and testing of all of these installations in accordance with the relevant Statutory rules and Codes of practice that apply to these facilities.  The operation of valves from their “normal” operational settings shall require TPA prior approval to avoid damage.  The change of pressure regulator units pressure set points shall require TPA prior approval.
Details of design related constraints for each installation are provided in the “Regulator Capacity Table” in Appendix 6. 
In addition to these  constraints, the following is a summary of station valves which are accessible for operation remotely via the VENCorp Dandenong Control Room.
Dandenong City Gate – 1 off station valve; 7 off regulator run valves,  7 off regulators (set point).
Wollert City Gate – 4 off station valves; 3 off regulator run valves; 3 off regulators (set point).
Longford Metering Station – 2 off station valves.
Dandenong Terminal Station – 2 off regulators (set point)
Tyers Pressure Limiter – 2 off station valves, 1 off regulators (set point).
Operation of these valves and regulator set points by VENCorp shall be strictly in accordance with TPA approved procedures.
4.3	Compressor Stations
VENCorp shall operate each compressor within the manufacturer’s published compressor performance curves and engine performance data identified in the Compressor Stations Key Data Plan in Appendix 3.
Compressors within the Service Envelope will be available to VENCorp within the meaning of availability as defined in clause 1.1 of this schedule.
VENCorp shall be responsible for determining the actual compressor driver (turbine) power required for each site. However the actual gas supply capacity of the compressor stations shall be limited by the site specific conditions at the time of operation, but within the recommended equipment suppliers specifications referenced in this agreement and available to VENCorp. These conditions include, but are not limited by, such factors as site elevation, inlet and outlet pressure losses, turndown, fuel gas specification, friction, non-ideal compression and expansion and typical ambient atmospheric conditions.
All compressors are fitted with wet seals and from time to time these seals permit the release oil into the PTS. 
The average annual compressor utilisation rate is less than 10%. Accordingly unit and station reliability may be less than optimal after long periods of shut down
TPA reserves the right to relocate, replace, substitute, modify or re-stage compressor equipment and associated drivers, control systems or any other systems affecting compressor performance provided the capability of nominal power and associated compressor performance (deduced from compressor performance curves) are not reduced below the declared levels for each station as specified within this Agreement.
The redundant unit which is provided at each compressor station may be operated in place of a unit provided within the design capability of each station, when the operating  unit fails to perform to the required capability. However the compressor stations are not designed to allow a redundant unit to be operated in addition to the units within the design capability. Operation of the redundant unit in this way may lead to failure of the entire station and the Service Envelope Capacity will be reduced accordingly.
4.3.1 	Gooding Compressor Station
Listed below is a compilation of operating constraints and guidelines that shall be complied with by VENCorp operators in the remote operation of Gooding Compressor Station:
4.3.1.1	The maximum station discharge gas pressure shall be limited to 6890 kPaG.
4.3.1.2	The minimum station inlet gas pressure shall not be allowed to fall below 4000 kPaG.
4.3.1.3	The maximum station discharge gas temperature shall be limited to 45°C.
4.3.1.4	Whenever gas compression is deemed to be required, a minimum of two(2) compressor units and a maximum of three (3) compressor units shall be operated on a continuous basis.  The fourth available compressor unit shall remain on standby status such that three (3) machines only are available for operation within the service envelope.
4.3.1.5	The time interval between starting successive compressor units shall be a minimum of two (2) minutes. Compressor units may be stopped at any time.
4.3.1.6	If a compressor unit, shuts down via the station/compressor unit controls or is remotely stopped, a remote restart of the compressor unit must comply with the following:

Time Period		VENCorp Operator Action
After Shutdown

0-10 minutes		Remote restart may be initiated

10 mins – 1 hour	Remote restart may not be initiated.

1 hour or more	Remote restart may be initiated.
4.3.1.7	Under certain pipeline operating conditions, i.e. relatively low flow and high head, the need for gas recycling through the compressor may be required. The compressor unit controls will shutdown any operating unit whenever the ratio of actual compressor flow divided by the calculated compressor flow required to maintain operations away from the surge line is less than or equal to 15%.
4.3.1.8	If a gas compressor or a series of compressors are determined to be no longer required, the subject operating units shall be shut down within 15 minutes after this determination is made.
4.3.1.9	The compressor station discharge set point by agreement between TPA and VENCorp shall be set to match, as close as practicable, the pipeline operating requirements.
4.3.1.10	VENCorp operators must allow at least eight (8) minutes for completion of the cold start sequence of a compressor unit from compressor start initiation to the point where the unit is on line and compressing gas.
4.3.1.11	Pressure differential across the compressor units of more than 300 kPa is required  to ensure satisfactory buffer gas differential pressures exist within the compressor to prevent seal oil leakage into the compressor.  VENCorp shall shut down any unit operating with less than 300 kPa for a period of 15 minutes.
4.3.1.12	Each compressor unit at Gooding is fitted with an inlet liquids knock out drum or separator with an automatic liquid dump control to a station liquid storage tank maintained in accordance with TPA procedures. If the separator liquid storage reservoir reaches a pre-determined maximum level  then this condition will initiate a compressor unit shutdown.
4.3.1.13	VENCorp shall ensure that compressors are not required to operate outside the manufacturer’s published performance curve, bounded by the surge line plus 15%, compressor speed 100% maximum, 60% minimum.
4.3.2	Wollert Compressor Station 
Listed below is a compilation of operating constraints and guidelines that shall be complied with by VENCorp operators in the remote operation of Wollert Compressor Station:
4.3.2.1	The maximum station discharge gas pressure shall be limited to 7400 kPaG.
4.3.2.2	The minimum station inlet gas pressure shall not be allowed to fall below 3000 kPaG.
4.3.2.3	The maximum station discharge gas temperature shall be limited to 45°C.
4.3.2.4	Whenever gas compression is deemed to be required, a minimum of one (1) compressor unit and a maximum of two (2) compressor units shall be operated on a continuous basis.  The third available compressor unit shall remain on standby status such that two (2) compressor units  only are available for operation within the service envelope.
4.3.2.5	The time interval between starting successive compressor units shall be a minimum of two (2) minutes. Compressor units may be stopped at any time.
4.3.2.6	If a compressor unit shuts down via the station/compressor unit controls or is remotely stopped, a remote restart of the compressor unit must comply with the following:

Time Period		VENCorp Operator Action
After Shutdown

 0-10 minutes		Remote restart may be initiated

10 mins – 1 hour	Remote restart may not be initiated.

1 hour or more		Remote restart may be initiated.
4.3.2.7	Each compressor set at Wollert is fitted with a discharge gas cooling system. Recycling of gas through any of the operating gas compressors shall be limited to a maximum of 30 minutes continuous recycle operation, otherwise the affected compressor units shall be shut down, or engine power reduced to minimum allowable loads.
4.3.2.8	If a gas compressor or a series of compressors are determined to be no longer required, the subject operating units shall be shut down within 15 minutes after this determination is made.
4.3.2.9	The compressor station discharge set point by agreement between TPA and VENCorp shall be set to match, as close as practicable, the pipeline operating requirements.
4.3.2.10	VENCorp operators must allow at least eight (8) minutes for completion of the cold start sequence of a compressor unit from compressor start initiation to the point where the unit is on line and compressing gas.
4.3.2.11	Pressure differential across the compressor units of more than 300 kPa is required  to ensure satisfactory buffer gas differential pressures exist within the compressor to prevent seal oil  leakage into the compressor.  VENCorp shall shut down any unit operating with less than 300 kPa for a period of 15 minutes.
4.3.2.12	Wollert Compressor Station is fitted with a single liquids separator located in the station inlet header with a manual liquids dump system. 
4.3.2.13	VENCorp shall ensure that compressors are not required to operate outside the manufacturer’s published performance curve, bounded by the surge line plus 15%, compressor speed 100% maximum, 60% minimum.
4.3.3	Brooklyn Compressor Station
Listed below is a compilation of operating constraints and guidelines in the remote operation of Brooklyn Compressor Station:
4.3.3.1	The maximum station discharge gas pressure shall be limited to 7390 kPaG in both the Ballarat/Bendigo pipeline and the Geelong pipeline.
4.3.3.2	The minimum station inlet gas pressure shall not be allowed to fall below 1600 kPaG.
4.3.3.3	The maximum station discharge gas temperature shall be limited to 45°C.
4.3.3.4	The operation by VENCorp of the compressors will be in accordance with configurations as set out in Appendix 7 – Brooklyn Compressors Operational Configuration.
4.3.3.5	The time interval between starting successive compressor units shall be a minimum of two (2) minutes. Compressor units may be stopped at any time.
4.3.3.6	If a compressor unit, either a Saturn or Centaur, shuts down via the station/compressor unit controls or is remotely stopped, a remote restart of the compressor unit must comply with the following:

Time Period		VENCorp Operator Action
After Shutdown

 0-10 minutes		Remote restart may be initiated

10 mins – 1 hour	Remote restart may not be initiated.

1 hour or more	Remote restart may be initiated.
4.3.3.7	Each compressor set at Brooklyn is fitted with a discharge gas cooling system. Recycling of gas through any of the operating gas compressors shall be limited to a maximum of 30 minutes continuous recycle operation, otherwise the affected compressor units shall be shut down.
4.3.3.8	If a gas compressor or a series of compressors are determined to be no longer required, the subject operating units shall be shut down within 15 minutes after this determination is made.
4.3.3.9	The compressor station discharge set point by agreement between TPA and VENCorp shall be set to match, as close as practicable, the pipeline operating requirements.
4.3.3.10	VENCorp operators must allow at least eight (8) minutes for completion of the cold start sequence of a compressor unit from compressor start initiation to the point where the unit is on line and compressing gas.
4.3.3.11	Pressure differential across the compressor units of more than 300 kPa is required to ensure satisfactory buffer gas differential pressures exist within the compressor to prevent seal oil  leakage into the compressor.  VENCorp shall shut down any unit operating with less than 300 kPa for a period of 15 minutes.
4.3.3.12	Each compressor unit at Brooklyn is fitted with an inlet liquids separator with a manual liquids dump system maintained by TPA in accordance with TPA procedures. 
4.4 	Pipeline Valves
The pipeline valves at various locations, as mentioned in section 2.5 are subject to operating constraints the details of which will be defined in this document to ensure VENCorp has all relevant information available to correctly and safely operate the pipeline system in accordance with relevant Statutory rules and Codes of practice and the TPA’s requirements that apply to the pipeline valves. Listed below is a compilation of operating constraints and guidelines that shall be complied with by VENCorp operators in the operation of pipeline system.
4.4.1	VENCorp shall operate the pipeline valves in compliance with applicable licence conditions, TPA procedures (as in Appendix 2)  and the requirements of Australian Standard AS2885. The licence conditions and TPA requirements will precede the Australian Standard. The maximum operating pressure of the pipeline valves shall be limited to the Maximum Allowable Operating Pressure (MAOP) as specified in the pipeline licence condition.
4.4.2	Operation of manually controlled valves within TPA’s Principal Gas Transmission System shall be performed only by personnel approved by TPA. 
4.4.3	Linevalves -  could be closed at any time to facilitate VENCorp’s operation of the pipeline system. However, opening of the Linevalve  shall only be allowed with the pressure differential across the valve less than or equal to 350 kPa. The transmission pipeline from Morwell to Dandenong (Pipeline T01, namely “Lurgi Line”) may  be manually opened anytime.
4.4.4	Branch valves – may not be opened with pressure differential more than or equal to 350 kPa unless approved by TPA.
4.4.5	Pig trap valves – could be opened with pressure differential less than or equal to 350 kPa unless approved by TPA.
4.4.6 	Pig trap kicker valves -  could be opened or closed to facilitate the pigging operation.
4.4.7.	Blowdown valves – could be opened or closed to facilitate pipeline blowdown, flaring, purging and pipeline equalisation prior to mainline valve operation.
4.4.8	Tie Valves – may not be opened with pressure differential more than or equal to 350 kPa unless approved by TPA.
4.5	Telemetry.
The VENCorp Transmission Operation Centre receives data on the status of systems including designated regulator stations and city gates, compressor stations, Longford Metering Station and Odorant Facilities.
The communications system availability is 99.5% on annual basis.
4.6	Odorisation.
The operating constraints for the Longford facility are stated as follows for the purpose of VENCorp information and monitoring of odorant injection operations through data telemetered to the VENCorp Control Room.
The odorant injection dose rate set point is 7 milligrams of odorant per standard cubic metre of natural gas with a process variance of +/- 1 milligram. The odorant is a blend of 70% tetrahydrothyophine (THT) and 30% tertiary butyl mercaptan (TBM).
The process operation has alarm settings for dose rates of < 6 milligrams and > 8 milligrams per cubic metre of natural gas. VENCorp shall monitor and advise TPA when average hourly concentrations exceed these limits.
The availability of the system is 99.9% with a maximum of 10 hours non-availability per annum and a single event non-availability not exceeding 3 hours.

Appendix 1:
(a)	
(b)	Key Plan Drawings

Drawing No	Title	Revision	
A4-363-1	Principal Gas Transmission System: Longford – Dandenong – Wollert Key Plan	0	
A4-363-2	Principal Gas Transmission System: 750 Dandenong – West Melbourne – Brooklyn Key Plan	0	
A4-363-3	Principal Gas Transmission System: Brooklyn – Geelong Key Plan	0	
A4-363-4	Principal Gas Transmission System: Ballarat – Bendigo Key Plan	0	
A4-363-4	Principal Gas Transmission System: Ballarat – Bendigo Key Plan	A	
A4-363-5	Principal Gas Transmission System: Wollert – Albury – Echuca Key Plan	0	
A4-363-5	Principal Gas Transmission System: Wollert – Albury – Echuca – Koonoomoo – Culcairn Key Plan	A	
A4-364-1	Principal Gas Transmission System: Longford – Dandenong – Wollert Transfer Point Plan	0	
A4-364-1	Principal Gas Transmission System: Longford – Dandenong – Wollert Transfer Point Plan	A	
A4-364-2	Principal Gas Transmission System: 750 Dandenong – West Melbourne – Brooklyn Transfer Point Plan	0	
A4-364-2	Principal Gas Transmission System: 750 Dandenong – West Melbourne – Brooklyn Transfer Point Plan	A	
A4-364-3	Principal Gas Transmission System: Brooklyn – Geelong Transfer Point Plan	0	
A4-364-3	Principal Gas Transmission System: Brooklyn – Geelong Transfer Point Plan	A	
A4-364-4	Principal Gas Transmission System: Ballarat – Bendigo Transfer Point Plan	0	
A4-364-4	Principal Gas Transmission System: Ballarat – Bendigo Transfer Point Plan	A	
A4-364-5	Principal Gas Transmission System: Wollert – Albury – Echuca Key Plan	0	
A4-364-5	Principal Gas Transmission System: Wollert – Albury – Echuca – Koonoomoo – Culcairn Key Plan	A	

Appendix 2:

TPA Operational Procedures Index

APPENDIX 2:	 TPA Operational Procedures Index

This list is a set of TPA procedures that are available to VENCorp to ensure security and safe operation of the Gas Transmission System, and compliance with TPA’s and VENCorp’s obligations under the MSO Rules and the Service Envelope Agreement.

 	Document	Document Name				Issue		Issue
	Number							No.		Date

	Company Manuals

	Health & Safety Manual
	OHS144	Safety Tagging Work Instructions			1b	21/3/97
	OPS166	Safe Work Permit & Facilities Release		2	7/4/98
	OHS200	Hazardous Areas Precautions				1	17/7/97
	OHS217	Safety Inspection Procedure				1	20/10/97
	OHS239	Protective Clothing and Equipment			1	2/2/98
	OHS240	Confined Spaces Entry Procedure			1	28/1/98

	Environment Manual
	ENV014	Purging & Venting Natural Gas			1	1/10/96
	ENV015	Fuel Handling						1	1/10/96
	ENV016	Pipeline Contaminants				1	1/10/96
	ENV017	Environmental Incidents Reporting			1	1/10/96

Management Manual
	CHM232	Safety Case, Change Management for Plant,		1	16/2/98
			Equipment and Associated Systems
	EME020	Emergency Management				2	27/5/98
	MAN368	Safety Case						3	21/5/98
	POL297	Management of Incidents				1	20/5/98
	RPT216	External Reporting in Accordance with		3	13/5/98
			the Pipelines Act and the Gas Industry Act

Departmental Manuals

	Engineering	Services
CSP326	Operational Guidelines For Standby Generator	1	4/3/98
CSP331	Evacuation Procedures				1	4/3/98
CSP335	Fire Services						1	30/3/98
CSP336	Security Guard And Patrol Services*			1	30/3/98
CSP337	Operating Guidelines For Mobile Telephones	1	30/3/98
	PIP181	Transmission Pipeline Damage Management			1	18/6/97
	PIP181wi1	Field Defect Assessment				2	17/9/97
	PIP250	Purging And Commissioning TP Pipeline Policy		1	19/3/98
	PIP254	Development of Fracture Control Plan for			1	26/3/98
		Pipelines
PIP296	Project Hand Over Documentation				1	20/4/98
	PIP299	Purging & Commissioning TP Pipelines			1	9/4/98
	PIP300	Pipeline Marking						1	8/4/98
	PIP342	Pipeline Design and Construction Standard			1	18/6/98
PIP346	Connections to TPA Assets				1	8/7/98
PIP357	Pipeline Integrity Monitoring Plan			1	8/7/98
	PLA380	Purging of Gas Plant					1	15/6/98
	POL261	Transmission System Description			1	10/3/98
	PUR202	Supply/Install of Mechanical Plant &		1	1/10/97
			Equipment
	SEC189	Security Fencing					1	30/6/97
	SEC260	Security Around Assets				1	17/3/98
	STD027	Selection and Installation of Electrical		1	9/2/98
			Equipment
	STD222	Standard for Pressure Regulating Facility -		1	3/10/97
			Design & Construction
	STD246	Cable Installation and Wiring			1	9/2/98
	VLV352	Control Valves					1	26/5/98
	VLV387	Valve Numbering System				1	13/7/98

Operations
	BCG275	Brooklyn Compressor Station Operating &		1	12/5/98
			Maintenance Manual
	GCS023	Gooding Compressor Station operating and		1	10/6/96
			Maintenance Manual
	GCS350	Gooding Compressor Station Interceptor 		1	3/4/98
			Trap Maintenance
	LNG230	LNG Facility Process Summary			1	26/3/98
	LNG288	De-Pressurisation & Purging of 2800 & 700 kPa	1	26/3/98
			Natural Gas Pipelines From BOC
	LNG289	LNG Facility Programmable Electronic		1	26/3/98
			System (PES) Operations
	LNG344	PLC Software Change Management			1	27/4/98

			LNG Facility Dandenong
	LNG345	CITECT Software Change Management		1	27/4/98

			LNG Facility Dandenong
	MEA001	Measuring Agency Laboratory			5	1/5/97
			Quality Manual
	MEA004	Longford Metering Agency -				2	13/12/96
			Emergency Plan
	MEA006	Longford Measuring Agency Manual		1	2/6/98
	MEA245	Custody Transfer Metering – Accuracy		1	1/5/98
			Verification Testing
	ODO001	Odorant Handling					1	28/7/97
	ODO002	Odorant Storage, Handling, Safety, & Fire		1	28/7/97
			Fighting
	ODO003	Maintenance of Odorant Equipment			1	28/7/97
	ODO004	Natural Gas Odorisation				1	28/7/97
	OHS198	Site Visitors Compliance Orientation		1	6/7/98
	OHS242	Safety Rules For Contractors				1	17/3/98
	PIP197	Transmission Pipeline Valve Positions			1	1/7/97
	PIP231	Pipeline Security						1	2/4/98
	PIP231wi1	Processing ‘One Call’ Notifications			1	17/4/98
	PIP268	Pipeline Valves – Inspection, Operation and			1	9/4/98		Maintenance
	PIP268wi1	Pipeline Valves – Inspection, Operation and		1	9/4/98
			Maintenance
	PIP269	Regulator & Over Pressure Protection Systems		1	9/4/98
			Inspection, Operation & Maintenance
	PIP269wi1	Regulator & Over Pressure Protection Systems	1	9/4/98
			Inspection, Operation & Maintenance
PIP270	Pipeline Syphons – Inspection, and Liquid		1	9/4/98
Withdrawal
PIP270wi1	Pipeline Syphons – Inspection, and Liquid		1	9/4/98
Withdrawal
	PIP271	Heaters – Inspection, Operation and				1	9/4/98
Maintenance
	PIP271wi1	Heaters – Inspection, Operation and			1	9/4/98
Maintenance
	PIP272	Pipeline Maintenance Compliance Audit			1	9/4/98
	PIP273	Pipeline Excavation						1	2/4/98
	PIP274	Public Awareness						1	30/4/98
	PIP294	Licenced Pipeline Work Permit				1	17/4/98
PIP391 	Tyers Pressure Limiter- Manual By-Pass.
	WCG276	Wollert Compressor Station – Operating and	1	12/5/98
			Maintenance Manual

Appendix 3:

Principal Gas transmission System:
Compressor Stations Key Data Plan 
A1-301-1
Revision A

Appendix 4:	

TPA’s Field Operations Department 

Critical TP Valves

FIELD OPERATIONS DEPARTMENT
CRITICAL TP VALVES

Note: Only TPA valves shown on this list. At shared sites the position of Distribution Company valves are not shown.

By Pass Valves. Unless stated otherwise, where by pass valves are fitted, and the by pass pipework is connected, both by pass valves are open.

Cross Tie Valves: Unless stated otherwise, where cross tie valves are installed, and the pipeline is duplicated, the cross tie valves are open. Where cross tie valves are installed, but the pipeline is not duplicated, the cross tie valves are shut.

Custody Transfer Meter Valves. Unless stated otherwise, the bypass valve for the meter skid/pit and the bypass valve on the skid, in or near the pit and the proving valves are shut. Refer to the appropriate flow diagram for full details.
Embedded sites are described below.

•	Principal Transmission System

LONGFORD – DANDENONG TP
Crosstie Valves –
Line Valve 1		Upstream Closed

By Pass Valves –
Northern Pipeline						Southern Pipeline
Valve		Upstream	Downstream		Upstream	Downstream
Line Valve 3B	N/A		N/A			Open		Shut
Line Valve 5	Shut		Open			N/A		N/A
Line Valve 7	Shut		Open			N/A		N/A

SALE CITY GATE
Valves 7, 8, 9, 10, 11, 801 & 802 are closed. Refer to flow diagram FD-S8 for full details.
Melway:	 528 F7					Vicroads: 99 B5
TYERS CITY GATE
The 300 mm branch valve  (BV 4 on flow diagram, the supply from the northern pipeline to Tyers City Gate) is closed. This valve was closed as it was thought that pipeline liquids may be present in the off take from the northern pipeline.
Valves 1, 2, 3, 362 & 364 are also shut. Refer to flow diagram FD-T4 for full details.
Melway: 528 D7					Vicroads: 98 A4		

LINE VALVE 4
Valves 402, 411, 412, 413, 421, 422, 423, 453, 471, 472 & 473 are shut. Refer to flow diagram FD-Y3 for full details.
Melway: 528 D7					Vicroads: 97 J4

GOODING COMPRESSOR STATION
LV5 and the upstream by pass valve are both closed. A non return valve must open to permit normal gas flow via the two (2) 600 mm branch valves
Melway: 528 C7					Vicroads: 97 F4

LINE VALVE 9
Valves 906, 907, 921, 924, 936, 952, 961 & 963 are shut. Refer to flow diagram FD-P7 for full details.
Melway:	318 E4					Vicroads: 96 A2

	MORWELL – DANDENONG TP

MORWELL REGULATING STATION
Valves 6, 7, 8, 10, 11, 12, 15, 17, 18, & 20 are shut. Refer to flow diagram FD-M1 for full details.
Melway:	528 C7					Vicroads: 97 H6

DANDENONG TERMINAL STATION
Valves 4, 6, 9, 11, 18, 19, 38, 63, 64, 70, 73, 75, 93, 94, 802, 804, 805,813, 814, 823, 821, 822 and BV2 (on T16) are all shut. Refer to FD-D3 for full details.
Melway:	 95 C3					Vicroads:95 E2

	DANDENONG – WEST MELBOURNE / BROOKLYN TP

DANDENONG TERMINAL STATION
Refer to the entry under Morwell – Dandenong TP.

HENTY ST
Valve 2 is shut. LV1 and both bypasses (on T18) are shut. LV1 is the meter bypass for M003. Refer to flow diagram FD-D7 for full details.
Melway:	91A C4					Vicroads: 79 E9

QUEENSWHARF RD
BV21 (on T16) and valves, 804 & 805 are shut. BV21 is the meter bypass for M011. Refer to flow diagram FD-M9 for full details.
Melway:	1A B11					Vicroads:78 H7

WEST MELBOURNE OUTSTATION 
Valves 2, 3A, 4, 5, 6, 7, 115, 802, 804, 805 & 817 are shut. Refer to flow diagram FD-W4 for full details.
Melway:	2E H7					Vicroads:78 H7

SPOTSWOOD
BV8 (on T33) is shut. This valve is the meter bypass for M013. Refer to flow diagram FD-S12 for full details.
Melway:	41 H12					Vicroads:78 F7

BROOKLYN COMPRESSOR STATION
Refer to the entry under Brooklyn – Corio.

BROOKLYN-BALLARAT-BENDIGO TP

BROOKLYN COMPRESSOR STATION
Refer to the entry under Brooklyn – Corio.

HOPKINS RD
LV1 and the bypass are shut. Refer to flow diagram FD-S5 for full details.
Melway:	511 H2						Vicroads:78 D6

SUNBURY CITY GATE
Valves 9, 10, 11 12, 802, 804, 805 & 814 are shut. Refer to flow diagram FD-S4 for full details.
Melway:	382 C6						Vicroads:78 D3

MELTON CITY GATE
Valves 13, 17, 804 & 805 are shut. Refer to flow diagram FD-M4 for full details.
Melway:	511 G2						Vicroads:78 C6

BALLAN BIFURCATION
LV7 & the downstream bypass(on T560 are shut. Valves 2, 3, 4, 9, 10, 11, 12 & 13 are shut. Refer to flow diagram FD-B2 for full details.
Melway:511 D1                                                	Vicroads: 77 D3

BALLARAT CITY GATE
Valves 3, 4, 5, 6, 8, 11, 13, 14, 15 & 16 are shut. Refer to flow diagram FD-B3 for full details.
Melway: 509 A12				Vicroads: 79 G3

GUILDFORD – OFFTAKE
At the Guildford Offtake, valves 1, 2, 3 & 4  are shut. Refer to flow diagram FD-G1 for full details.
Melway: 509 C8					Vicroads:59 D4

CLUNES RD
At Clunes Rd, line valve 3 & both bypass valves are Open. Branch valves 1 & 2 are shut. This by passes the pressure limiter Refer to flow diagram FD-C3 for full details.
Melway:520 K11	Vicroads: 58 G3

MARYBOROUGH CITY GATE
LV4 and both bypasses (on T67), & valves 3, 802,804 & 805 are shut. Refer to flow diagram FD-M3 for full details.
Melway:520 K11	Vicroads:58 F2

CASTLEMAINE CITY GATE
Valves 14, 804 & 805 are shut. Refer to flow diagram FD-C2 for full details.
Melway:509 C7	Vicroads:59 D2

BENDIGO CITY GATE
Valves 4, 5, 6, 8, 11, 17, 18, 26 & 27 are shut. Refer to flow diagram FD-B5 for full details.
Melway:509 D4	Vicroads:44 E7

BROOKLYN – CORIO TP

BROOKLYN COMPRESSOR STATION
Valves 2, 3, 5, 6, 12, 14, 17, 28, 29, 30, 31, 34, 45, 46, 47, 48, 49, 50, 802, 804 & 805 are shut. Refer to flow diagram FD-B6 for full details.
Melway:	40 H9					Vicroads:78 F7

CORIO CITY GATE
Valves 2, 18, 19, 20, 21, 25, 26, 28, 29, 31, 32, 33, 34 & 35 are shut. Refer to flow diagram FD-C1 for full details.
Melway:            224 G5		Vicroads:93 H3

WOLLERT –WODONGA – ECHUCA TP

KEON PARK
LV15B & LV16 & both bypasses (on T18) are shut. These are the meter by passes for M115 (LV15B) and M116 (LV16). Refer to flow diagram FD-R5 for full details.
Melway:7 K10 & 8 B11	 Vicroads:78 H5

WOLLERT(CITY GATE & COMPRESSOR STATION)
Valves LV2 & both bypasses (on T74), valves 2, 19, 21, 23, 36, 42, 43, 43A, 43B, 402, 26 & 27 are shut. Refer to flow diagram FD-W5 for full details. 
Melway: 512 C1	Vicroads: 98 H3

EUROA CITY GATE
Valves 1, 2, 3, 4, 5, 6, 9, 9A, 9B, 10, 12, 12A, 12B, 13, 15, 16, 18, 19,BV11, BV11A, BV12, BV 12A (on T74), 802, 804 & 805 are all shut. Refer to flow diagram FD-E2 for full details.
Melway:510 R3 	Vicroads:47 A5

SHEPPARTON CITY GATE
Valves 3, 6, 7, 15, 802, 804 & 805 are shut. Refer to flow diagram FD-S1 for full details.
Melway;521 J7	Vicroads:32 H8

TOOLAMBA RD
LV4 is shut. Both bypass valves are open. Toolamba Rd Pressure Limiter (P9-005) is installed between the by pass valves.
Melway:521 H6	Vicroads:32 F7

KYABRAM CITY GATE
Valves 1, 7, 8 , 10, 15, 16, 17, 18, 802, 804, 805 & BV7& (on T71) are shut. Refer to flow diagram FD-K1 for full details.
Melway:521 H6	Vicroads:32 B7

ECHUCA CITY GATE
Valves 1, 2, 6, 7, 13, 802, 804 & 805 are shut. Refer to flow diagram FD-E5 for full details.
Melway:521 F6	Vicroads:31 E5

WODONGA CITY GATE
Valves 2, 3, 7, 13, 14, 15, 802, 804 & 805 are shut. Refer to flow diagram FD-W1 for full details.
Melway: 522 E5	Vicroads:35 D3

Murray Valley (Chiltern - Koonoomoo)

CHILTERN VALLEY OFFTAKE
Valves 1, 2, 4, 5 & 6 are shut. Refer to flow diagram FD-C37 for full details.
Melway: 522 E6	Vicroads:35 A4

RUTHERGLEN CITY GATE
Valves 802, 804 and 805 are closed.  Refer to flow diagram FD-R2 for full details.
Melway:522 D6	Vicroads:34 J3

YARRAWONGA CITY GATE
Valves 802, 804 and 805 are closed.  Refer to flow diagram FD-Y1 for full details.
Melway:522 B6	Vicroads:34 B2

COBRAM CITY GATE
Valves 802, 804 and 805 are closed.  Refer to flow diagram FD-C33 for full details.
Melway:521 K5	Vicroads:23B9

KOONOOMOO CITY GATE
Valves 1, 2, 3, 5, 802, 804 and 805 are closed.  Refer to flow diagram FD-K5 for full details.
Melway:521 K4	Vicroads:23B7

Interconnect (Barnawartha – Culcairn)
Line valves are fitted with Automatic Line Break detection (ALB).  Both bypass valves are closed

BARNAWARTHA OFFTAKE
Valves HV01, HV02 and UV01 are open, V200, HV210 and HV03 are closed.  Refer to flow diagram FD-B45 for full details.
Melway:522 E5	Vicroads:35C3

ALTERATIONS
Updated 25 November, 1998
List updated & revised

Appendix 5:
TPA Pipelines Specifications Summary

TPA Pipelines Specifications Summary
11 November 1997
PipelineLicenceNo.	DWG
No.	Licence Name	Line Name	RecordedLength
(km)	Pipe Dia.
O.D.
(mm)	MAOP
(kPa)	Coating	Steel Grade	Wall Thickness	
									Min	Max	
36	T16	Dandenong to West Melbourne	Dandenong to West Melbourne	36.2	762.0	2760	C.T.E.	API 5L Grade X42	9.52	9.52	
202	T18	Dandenong to West Melbourne	Keon Park East – Keon Park West	0.6	457.0	2760	C.T.E.	API 5L Grade A	7.92	7.92	
50	T1	Morwell to Dandenong	Morwell to Dandenong	126.8	457.0	2760	Bitu.	SAA A.33 Class D	7.94	9.94	
50	T1	Morwell to Dandenong	Supply to Jeeralang	0.4	323.9	2760	P.E.	API 5L Grade B	6.35	6.35	
56	T15	Dandenong to West Melbourne	Princes Hwy to Regent St.	0.8	219.1	2760	C.T.E.	API 5L Grade A	6.4	6.4	
67	T37	Maryvale	Supply to APM Maryvale	5.4	168.3	6890	C.T.E.	API 5L Grade B	6.35	6.35	
68	T38	Pakenham	Healesville-Koo-Wee-Rup Road	1.2	88.9	2760	C.T.E.	API 5L Grade B	5.48	5.48	
75	T60	Longford to Dandenong	Longford to Dandenong	174.2	762.0	6890	C.T.E.	API 5L Grade X60	10.31	12.7	
78	T56	Brooklyn – Ballarat – Bendigo	Brooklyn to Ballan	66.6	219.1	7390	C.T.E.	API 5L Grade B	6.35	7.04	
78	T57	Brooklyn – Ballarat – Bendigo	Ballan to Ballarat	22.7	168.3	7390	C.T.E.	API 5L Grade B	4.78	6.35	
78	T70	Brooklyn – Ballarat – Bendigo	Ballan to Bendigo	90.8	168.3	7390	C.T.E.	API 5L Grade B	4.78	6.35	
81	T24	Brooklyn to Corio	Brooklyn to Corio	50.7	350.0	7390	C.T.E.	API 5L Grade X60	5.56	6.35	
91	T44	Warragul	Supply to Anderson St., Warragul	4.8	114.3	2760	C.T.E.	API 5L Grade B	6.02	6.02	
101	T74	Melbourne – Wodonga – Shepparton	Keon Park to Wollert	14.1	610.0	2760	P.E.	API 5L Grade X42	7.92	7.92	
101	T74	Melbourne – Wodonga – Shepparton	Wollert to Wodonga	269.4	323.9	7400	P.E.	API 5L Grade X46	6.35	7.55	
101	T59	Melbourne – Wodonga – Shepparton	Euroa to Shepparton	34.5	219.1	7400	P.E.	API 5L Grade X42	5.59	5.59	
107	T32	Clyde North	Pound Rd. to Tuckers Rd.	2.0	114.3	2760	P.E.	API 5L Grade B	6.02	6.02	
108	T33	South Melbourne to Brooklyn	South Melbourne to Brooklyn	12.8	762.0	2760	C.T.E.	API 5L Grade X42	9.52	9.52	Pipeline	DWG	Licence Name	Line Name	Recorded	Pipe Dia.	MAOP	Coating	Steel Grade	Wall Thickness		
117	T60	Rosedale to Tyers	Rosedale to Tyers	34.3	762.0	7070	C.T.E.	API 5L Grade X60	10.9	13.1	No.				(km)	(mm)						
120	T60	Longford to Rosedale	Longford to Rosedale	30.5	762.0	7070	C.T.E.	API 5L Grade X60	10.9	13.1	
121	T63	Tyers to Morwell	Tyers to Morwell	15.7	508.0	7070	C.T.E.	API 5L Grade X60	8.72	10.59	
122	T62	Derrimut to Sunbury	Derrimut to Sunbury	24.0	168.3	7390	P.E.	API 5L Grade B	6.35	6.35	
124	T64	Newport	Supply to Newport Power Station	1.0	457.0	2760	P.E.	API 5L Grade X42	7.9	9.7	
125	T67	Maryborough	Guildford to Maryborough	31.4	168.3	7390	P.E.	API 5L Grade B	6.35	6.35	
128	T66	Mt Franklin to Kyneton	Mt Franklin to Kyneton	24.5	323.9	7390	P.E.	API 5L Grade X46	6.35	7.55	
129	T65	Dandenong to Princess Hwy	Dandenong to Princess Hwy	5.0	762.0	2760	C.T.E.	API 5L Grade X42	9.52	9.52	
129	T65	Dandenong to Princess Hwy	Princess Hwy. To Henty St.	0.2	508.0	2760	P.E.	API 5L Grade B	7.92	7.92	
131	T70	Mt Franklin to Bendigo	Mt Franklin to Bendigo	50.8	323.9	7390	P.E.	API 5L Grade X46	6.35	7.55	
132	T71	Tatura	Shepparton to Tatura	16.2	219.1	7390	P.E.	API 5L Grade B	6.35	7	
134	T57	Ballan to Ballarat	Ballan to Ballarat	22.8	323.9	7390	P.E.	API 5L Grade X46	6.35	7.6	
135	T60	Bunyip to Pakenham	Bunyip to Pakenham	18.7	762.0	7070	C.T.E.	API 5L Grade X60	10.9	13.1	
136	T71	Tatura to Kyabram	Tatura to Kyabram	21.3	219.1	7390	P.E.	API 5L Grade B	6.35	7	
141	T61	Pakenham to Wollert	Pakenham to Wollert	93.1	762.0	6890	C.T.E.	API 5L Grade X60	10.6	12.7	
143	T75	Wandong to Kyneton	Wandong to Kyneton	59.5	323.9	7390	P.E.	API 5L Grade X46	6.35	7.6	
152	T85	Kyabram to Echuca	Kyabram to Echuca	30.7	168.3	7390	P.E.	API 5L Grade B	4.8	6.35	
162	T88	Laverton to BHP	Laverton to BHP	1.6	168.3	2760	P.E.	API 5L Grade X42	6.35	6.35	
164	T89	Bay St to Unichema	Supply to Bay St to Unichema	0.4	168.3	2760	P.E.	API 5L Grade X42	6.35	6.35	
176	T96	Rutherglen to Koonoomoo	Chiltern to Rutherglen	14.3	219.1	7400	P.E.	API 5L Grade X60
	4	4.8	
182	T98	Rutherglen to Koonoomoo	Rutherglen to Koonoomoo	89.3	219.1	7400	P.E.	API 5L Grade X52
API 5L Grade X42	4.32
8.2	5.2
8.2	
178		Barnawartha North to Murray River	(B)	Barnawartha North to Murray River	5.5	457.0	10200	P.E.	API 5L Grade X70	6.8	9.7	
NSW 24		Murray River to Culcairn	Murray River to Culcairn	57.0	457.0	10200	P.E.	API 5L Grade X70	6.8	9.7	
			Total Length:	1561.8						
Note:  Murray Valley (176 & 182) and Interconnect (178 & NSW 24) pipelines are unlined.  All others are lined.

Appendix 6:

Regulator Capacity Table

REGULATOR CAPACITY

CONTENT

P8-004		Dandenong CG
P8-013		Morwell CG
P8-016		Wollert CG
P8-017		Wollert CG Backup / PL
P8-027		Nth Laverton CG

P9-001		Clunes Rd. PL
P9-003		Tyers PL
P9-005		Toolamba PL
P8-007		Dandenong PL (Morwell backup)
P9-008		Hopkins Rd. PL
P9-010		Clonbinane PL

REGULATOR LOCATION
	
Regulator no	P8-004A
P8-004C
P8-004E
P8-004G	Regulator Name	DANDENONG CITY GATE	(R1 & R2)
	(R3 & R4)
	(R5 & R6)
	(R7)	
Location	    FRANKSTON ROAD
		
Suburb	DANDENONG	Melway	95 D4	Vic Roads	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	3000	
	Maximum Outlet Pressure (kPa)	2760	
	Outlet MAOP (kPa)	2760	
	Design Capacity per run  (SCMH)	177 x 103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	1.062 x 106	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	6	
			
Regulator Set Points	
	A Leg Secondary / Active setpoint	2760	
	A Leg Primary / Monitor setpoint	2800	
	B Leg Secondary / Active setpoint	2760	
	B Leg Primary / Monitor setpoint	2800	
Note:	(c)	All runs have identical set points
Set point shall not be changed without prior consultation with TPA		

			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	2900	
	A Leg Slamshut Open (kPa)	Manual Reset	
	B Leg Slamshut Close (kPa)	2900	
	B Leg Slamshut Open (kPa)	Manual Reset	
	Note: All seven runs have identical set points		
			
REMOTE SETPOINT CAPABILITY (Y/N)	N	

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
R1	Monitor	200	V25 HIBALL	37300	16	
	Active	200	JETSTREAM J8-60 100%	23390	16.4	
						
(Note : All runs have identical regulators)	

REGULATOR LOCATION
	
Regulator no	P8-013
	Regulator Name	Morwell City Gate

Location	Fifth Ave. (GAFCOR Rd)
		
Suburb	Morwell	Melway		Vic Roads 	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	3500	
	Maximum Outlet Pressure (kPa)	2760	
	Outlet MAOP (kPa)	2760	
	Design Capacity   	Leg A	298x 103	
		Leg B	292 x 103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	292 x 103	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	A Leg Secondary /Active setpoint	2760	
	A Leg Primary / Monitor setpoint	2850	
	B Leg Secondary / Active setpoint	2700	
	B Leg Primary / Monitor setpoint	2850	
Note:	Set point shall not be changed without prior consultation with TPA		
			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	2950	
	A Leg Slamshut Open (kPa)	2460	
	B Leg Slamshut Close (kPa)	3000	
	B Leg Slamshut Open (kPa)	0	
			
REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
A	Active	200	WelkerJet WJ-8N 100%	23744	18	
A	Monitor	200	WelkerJet WJ-8N 100%	23744	18	
B	Active	200	WelkerJet WJ-8N 100%	23744	18	
B	Monitor	200	JetStream J8-60 100%	23390	16.4	

REGULATOR LOCATION
	
Regulator no	P8-016A
P8-016C
	Regulator Name	WOLLERT CITY GATE (R1 & R2)
		(R3)
	
Location	SUMMERHILL RD
		
Suburb	WOLLERT	Melway		Vic Roads : 79 A 3	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	3000	
	Maximum Outlet Pressure (kPa)	2760	
	Outlet MAOP (kPa)	2760	
	Design Capacity per run  (SCMH)	200 x 103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	400 x 103	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	2	
			
Regulator Set Points	
	Secondary / Active setpoint	276	
	Primary / Monitor setpoint	2850	
Note:	(d)	All runs have identical set points
Set point shall not be changed without prior consultation with TPA		
			
	Outlet Pressure Set-point Range (Normal Operation)	2200 kPa – 2760 kPa	

SlamShut Control Set Points	
	Slamshut Close (kPa)	2950	
	Slamshut Open (kPa)	2850	
	Note: All runs have identical set points		

REMOTE SETPOINT CAPABILITY (Y/N)
	Y

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
R1, R2	Monitor	200	V25 HIBALL	37300	16	
R3	Active	200	JETSTREAM J8-60 100%	23390	16.4	
						
(Note : All runs have identical regulators)	

REGULATOR LOCATION
	
Regulator no	P8-017
	Regulator Name	Wollert Pressure Limiter
(Wollert Compressor Station)
	
Location	Summerhill Rd.
		
Suburb	Wollert	Melway		Vic Roads : 79 A 3	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	3000	
	Maximum Outlet Pressure (kPa)	2760	
	Outlet MAOP (kPa)	2760	
	Design Capacity per run  (SCMH)	156 x 103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	156 x 103	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	0	
			
Regulator Set Points	
	Secondary / Active setpoint	SHUT	
	Primary / Monitor setpoint	-	
Note:	TPA shall be consulted for setting of the set-point.		
			
SlamShut Control Set Points	
	Slamshut Close (kPa)	NONE	
	Slamshut Open (kPa)	NONE	
			
REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
A	Monitor	200	WelkerJet WJ-8N	23744	18	
	Active	200	WelkerJet WJ 8N	23744	18	

REGULATOR LOCATION
	
Regulator no	P8-027
	Regulator Name	Nth Laverton CG
	(Fitzgerald Rd. TP)
	
Location	Fitzgerald Rd.
		
Suburb	Laverton	Melway	: 53 G 2	Vic Roads	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	2200	
	Maximum Outlet Pressure (kPa)	1900	
	Outlet MAOP (kPa)	2760	
	Design Capacity per run  (SCMH)	11.7 x 103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	11.7 x 103	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	A Leg Secondary / Active setpoint	1880	
	A Leg Primary / Monitor setpoint	1950	
	A Leg Secondary / Active setpoint	1900	
	A Leg Primary / Monitor setpoint	1950	
Note:	Set point shall not be changed without prior consultation with TPA		
			
26.13	SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	2100	
	A Leg Slamshut Open (kPa)	1800	
	B Leg Slamshut Close (kPa)	2150	
	B Leg Slamshut Open (kPa)	1750	
			
REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
A,B	Monitor	50	WelkerJet WJ-2N	2044	19.1	
	Active	50	WelkerJet WJ 2N	2044	19.1	
						
(Note : All runs have identical regulators)	

REGULATOR LOCATION
	
Regulator no	P9-01
	Regulator Name	Clunes Rd
	
Location	Clunes Rd
		
Suburb	Carisbrook	Melway		Vic Roads 58 G3	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	2860	
	Maximum Outlet Pressure (kPa)	2500	
	Outlet MAOP (kPa)	7000	
	Design Capacity per run  (SCMH)	3800	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	3800	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	Leg A Secondary / Active setpoint	2350	
	Leg A Primary / Monitor setpoint	None	
	Leg B Secondary / Active setpoint	2500	
	Leg B Primary / Monitor setpoint	None	
Note:	Set point shall not be changed without prior consultation with TPA		
			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	None	
	A Leg Slamshut Open (kPa)	None	
	B Leg Slamshut Close (kPa)	None	
	B Leg Slamshut Open (kPa)	None	
REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cv	C1	
A	Active	50	Grove 11477	25	32.05	
B	Active	50	Grove 11477	25	32.05	

	
REGULATOR LOCATION
	
Regulator no	P9-003
	Regulator Name	Tyers Pressue Limiter (CG)

Location	Tyers - Glengarry Rd
		
Suburb	Tyers	Melway		Vic Roads : 98 J 4	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	4650	
	Maximum Outlet Pressure (kPa)	4460	
	Outlet MAOP (kPa)	7070	
	Design Capacity per run  (SCMH)	246 x 103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	246 x 103	
			
	Number of “Standby” runs	0	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	A Leg Active regulator setpoint	4400	
	A Leg Primary / Monitor setpoint		
Note:	Set point shall not be changed without prior consultation with TPA		
			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	None	
	A Leg Slamshut Open (kPa)	None	
	B Leg Slamshut Close (kPa)	None	
	B Leg Slamshut Open (kPa)	None	
			
REMOTE SETPOINT CAPABILITY (Y/N)
	Y

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
A,B	Active	200	JetStream J8-60 100%	23390	16.4	

(Note : All runs have identical regulators)	

REGULATOR LOCATION
	
Regulator no	P9-005
	Regulator Name	Toolamba Rd (LV-4)
	
Location	Toolamba Rd
		
Suburb	Toolamba	Melway		Vic Roads : 32 G 9	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	3100	
	Maximum Outlet Pressure (kPa)	2760	
	Outlet MAOP (kPa)	7400	
	Design Capacity per run  (SCMH)	20000	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	20000	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	A Leg Secondary / Active setpoint	2700	
	A Leg Primary / Monitor setpoint	2800	
	B Leg Secondary / Active setpoint	2760	
	B Leg Primary / Monitor setpoint	2800	
	Note: All runs have identical set points		
Note:	Set point shall not be changed without prior consultation with TPA		
			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	None	
	A Leg Slamshut Open (kPa)	None	
	B Leg Slamshut Close (kPa)	None	
	B Leg Slamshut Open (kPa)	None	
			
REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
A, B	Active	100	Fisher ED 657 Act Reg.	7580 	33.8	

(Note : All runs have identical regulators)	

REGULATOR LOCATION
	
Regulator no	P8-007	Regulator Name	Dandenong Pressure Limiter
	(Morwell backup regs)	
	
Location	GREENS ROAD
		
Suburb	DANDENONG	Melway	95 C3	Vic Roads	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	2700	
	Maximum Outlet Pressure (kPa)	1700	
	Outlet MAOP (kPa)	2760	
	Design Capacity per run  (SCMH)	38.3 x103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	38.3 x103	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	A Leg Secondary / Active setpoint	1700	
	A Leg Primary / Monitor setpoint	2100	
	B Leg Secondary / Active setpoint	1600	
	B Leg Primary / Monitor setpoint	2100	
Note:	Set point shall not be changed without prior consultation with TPA		
			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	NONE	
	A Leg Slamshut Open (kPa)	NONE	
	B Leg Slamshut Close (kPa)	NONE	
	B Leg Slamshut Open (kPa)	NONE	

			
REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
A,B	Monitor	100	JETSTREAM J4-30 100%	3677	18.4	
	Active	100	JETSTREAM J4-30 100%	3677	18.4	

REGULATOR LOCATION
	
Regulator no	P9-08
	Regulator Name	Hopkins Rd Pressure Limiter

Location	Hopkins Rd
		
Suburb	Rockbank	Melway		Vic Roads	

DESIGN PARAMETERS	
	Minimum Inlet Pressure (kPa)	3400	
	Maximum Outlet Pressure (kPa)	2600	
	Outlet MAOP (kPa)	7000	
	Design Capacity per run  (SCMH)	17 x 103	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	17 x 103	
			
	Number of “Standby” runs	1	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	A Leg Secondary / Active setpoint	2500	
	A Leg Primary / Monitor setpoint	2800	
	B Leg Secondary / Active setpoint	2600	
	B Leg Primary / Monitor setpoint	2800	
	Note: All runs have identical set points		
Note:	Set point shall not be changed without prior consultation with TPA		
			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	NONE	
	A Leg Slamshut Open (kPa)	NONE	
	B Leg Slamshut Close (kPa)	NONE	
	B Leg Slamshut Open (kPa)	NONE	

REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cg	C1	
A,B	Active	50	JetStream J2-60 100%	1400	15.1	

(Note : All runs have identical regulators)	

REGULATOR LOCATION
	
Regulator no	P9-10
	Regulator Name	Clonbinane (LV 5) Pressure Limiter

Location	Taits Rd
		
Suburb	Clonbinane	Melway		Vic Roads : 61 C 6	

DESIGN PARAMETERS	
	Inlet Pressure (kPa)	5500	
	Outlet Pressure (kPa)	4600	
	Outlet MAOP (kPa)	7400	
	Design Capacity per run  (SCMH)	57500	
	Total Station Capacity (SCMH)
(At minimum inlet pressure)	57500	
			
	Number of “Standby” runs	0	
	Number of “Duty” runs	1	
			
Regulator Set Points	
	Active regulator – (Manual adjustment)	3450 – 4600 kPa	
	By-pass valve - Open and Close – (Manual adjustment)	2300 – 4800 kPa	
			
SlamShut Control Set Points	
	A Leg Slamshut Close (kPa)	NONE	
	A Leg Slamshut Open (kPa)	NONE	
	B Leg Slamshut Close (kPa)	NONE	
	B Leg Slamshut Open (kPa)	NONE	
			
REMOTE SETPOINT CAPABILITY (Y/N)
	N

REGULATOR DETAILS
	
LEG	MODE	SIZE	TYPE	Cv	C1	
A	Active	100	Grove Regulator 	234	-	

Appendix : 7

Brooklyn Compressors 
Operational Configuration

Brooklyn Compressor Configuration			
			
Mode	Units	Station      Net Power,      kW	
1 & 11	nil	nil	
2A	4 or 5	600* - 950	
2B	6 or 7	500* - 850	
2C	8 or 9	500* - 850	
3A	4 + 5	1200* - 1900	
3B	6+ 7	1000* - 1700	
3C	8+ 9	1000* - 1700	
4A	10	1400* - 2850	
4B	11	1400* - 2850	
5A	4+5+10	2600 - 4750	
5B	6+7+10	2400 - 4550	
5C	8+9+10	2400 - 4550	
6A	10+11+     (4 or 5)	3400 - 6650	
6B	10+11+     (6 or 7)	3300 - 6550	
6C	10+11+     (8 or 9)	3300 - 6550	
8A	(11or 10) +4+5+6+7	3600 - 6950	
8B	(11or 10) +6+7+8+9	3400 - 6750	

Mode 1							Mode 2				

									   S

M		          G	        B			          M		   G	          B	

				----------------------------------------------------

Mode 3							 Mode 4					
	 S								   C

	 S

								M			G	        B
M		      G	        B

----------------------------------------------------

Mode 5							Mode 6

	  S		  S						  C		  S															

	  C								  C

M		    G		      B				M		   G		      B

----------------------------------------------------

							Mode 8

								         S
																					         S																	
								         S				
													
								         C		     S		

													
	     M			   G		        B

Schedule 2
Applicable Operating Conditions

The Service Envelope Capacity takes into account the TPA assets which are available to VENCorp, and the relevant limiting specifications of those assets, availability and physical constraints on the operation of those assets. By means of these assets VENCorp can make capacity available to gas users for transportation through the Gas Transmission System.
The available capacity of the Gas Transmission System will depend on the applicable operating conditions of the day. That is, a different set of operating conditions on the day may enable a different quantity of gas to be transported through the Gas Transmission System.
The deliverability of the system is determined by use of the agreed common computer model referenced in clause 5.2(d), in conjunction with the following:
(1)	The description of the facilities which comprise the Gas Transmission System contained in Schedule 1, and modified from time to time as assets are added to or removed from the Gas Transmission System.
(2)	The limiting specifications and availabilities of those assets, and as required by the protocols of the agreed common computer model in order to characterise the system to be modelled.
(3)	The operating constraints, as specified in this Agreement. These represent limitations on the manner in which the assets can be used, and are relevant to the extent that they influence the modeling of the system capabilities.
(4)	The applicable operating conditions of the day, which include the following parameters which can individually affect the operation of the system model:
•	gas quality and the heating value (by zone);
•	the linepack configuration at the beginning of the day;
•	the scheduling of incs, decs, curtailments and emergency activities;
•	the hourly profiles of pressure and flows at each injection point into the system;
•	the hourly flows and/or pressures at a selection of key system delivery points, which do not completely specify the system, but which are selected for the purposes to which the calibrated model is to be used;
•	any other variable that is not a fixed parameter already included as part of the calibration process of the system model.
The applicable operating conditions must be specified for the following two purposes:
(a)	MDQ Authorisation
(b)	Liabilities for Uplift under the MSO Rules
MDQ Authorisation
For the initial allocation of MDQ Authorisations, the applicable operating conditions have been specified and are incorporated in the agreed common computer model. A copy of this model is held by both TPA and VENCorp. The applicable operating conditions that are relevant to the authorisation process, and the MDQ capacity that is derived from the model, may not be changed without the agreement of both parties.
Based on the agreed common computer model, and the use of the agreed set of applicable operating conditions, the initial capacity of the system for injections at the Longford Receipt Point is determined to be 990 TJ/day.
Liabilities for Uplift under the MSO Rules
For the determination of liabilities of TPA under clause 3.6.8 of the MSO Rules, an agreed common computer model as referred to in clause 5.2(d) will be used, in conjunction with the applicable operating conditions. The operating conditions to be used in assessing the extent of the failure of TPA to perform its obligations will be those that are applicable to the conditions over the period of the failure, and where relevant they will reflect a fair assessment of the operating responsibilities of VENCorp. The agreed common computer model may be amended from time to time with the agreement of both parties.

Schedule 3
Gas Transportation Services

Section 1: 	Non-Terminable

Specific Services	
1	Provide a certified list of ‘Parameters’ and specifications limiting performance for each major item of gas plant, equipment and auxiliary facilities within the TPA Service Envelope pipeline assets, for the proper care and integrity of each asset.	
Frequency: Monthly			Measure: All assets defined	
1	Provide a ‘Plant Availability and Maintenance’ programs for the TPA Service Envelope. TPA maintains the right on a 24 hour basis (or circumstances of extreme plant outage) the right to amend the current program accordingly.	
Frequency: 				Measure: All assets defined	
-	annual program	
-	3 month rolling program	
-	weekly program	
1	Provide ‘Emergency Management’ resources, appropriate field equipment and expertise during an incident within the TPA Service Envelope.	
Frequency: As requested		Measure: Duty executive 15 mins.	
1	Provide ‘Staff Location Registration’ through notification and scope of work, duration and ramification for the TPA Service Envelope in meeting system performance.	
Frequency: Daily			Measure: Compliance audit	
1	Provide ‘Documentation Updating’ service for all operational and technical specifications, performance data, plans and other relevant materials required for effective control management of transmission pipeline system’s assets, plant and equipment.	
Frequency: On each amendment	Measure: Compliance audit	
1	Provide ‘Control Room Operators’ access to participate with field work crews during the enhancement, modification and maintenance of assets owned by TPA Assets.	
Frequency: Monthly			Measure: Competency	
1	Submit ‘Design Variation’ documentation for all existing,  new or proposed enhancement of existing TPA gas plant, equipment, systems, or operational procedures by to obtaining acceptance prior to implementation. 	
Frequency: On request		Measure: Response time	
1	Provide copies of ‘Safety Case’ documentation as and when approved by the Office of Gas Safety for all gas plant, equipment and associated with either the TPA Service Envelope.	
Frequency: As amended		Measure: Compliance audit	
1	Provide a ‘Safe Operating Environment’ for all personnel within the Dandenong City Gate in accordance with established TPA procedures.	
Frequency: Daily			Measure: Incident reports	
1	Implement and maintain a ‘Change Management’ policy, procedures and associated control documentation to ensure all enhancement, modifications and amended performance specifications for gas plant, equipment, hardware and software systems have traceable documentation at all times.	
Frequency: Daily			Measure: Random compliance audit	
1	Provide use of ‘State Mobile Radio (SMR) Communication’ fully maintained facilities for TPA use in emergencies comprising of 2 base stations and 3 mobile handsets. 	
Frequency: Daily			Measure: Reliability	

Section 2: 	Terminable

1	Provide ‘Gasman and Voice Communication’ facilities including direct RTU telephone lines between all control, monitoring and metering TPA site facilities.	
Frequency: Daily			Measure: Availability	

Schedule 4
TPA Data Requirements

RTUs
•	Live and historical alarms, performance indicators and system monitors
•	Access to sufficient data to enable the remote determination of the health of associated field equipment controlled and monitored by the RTU.
CTMs (as Responsible Person)
•	Live, historical, hourly averaged and daily averaged flows, pressure, temperature and gas quality data
•	Maximum hourly flow
•	Top of hour pressure
•	Live and historical alarms, performance indicators and system monitors
Chromatographs
•	Live, historical, hourly averaged and daily averaged gas composition, heating value and relative density data
•	Live and historical alarms, performance indicators and system monitors
Compressor Stations
•	Station configuration information including valve positions, compressors availability and usage status, etc
•	Live and historical turbine and compressor operating information including speeds, temperatures, pressures, vibration and flows
•	Live and historical station information including pressures, temperatures and flows
•	Station safety and security of supply system data including gas and fire systems, power systems, etc
Longford and Paaratte
•	Live, historical, hourly averaged and daily averaged flow, pressures, differential pressures, temperatures and gas quality data
•	Maximum hourly flow
•	Top of hour pressure
•	Alarms, performance indicators and system monitors
•	Odorant system data including odorant concentration, pump selected, etc
Line valves and major offtakes/interconnects
•	Live and historical pressure, temperature, flow and valve positions
City Gates and pressure limiters
•	Live and historical pressures, temperature, flow, setpoint and valve positions

Attachment 1
Acknowledgment

1.	Transmission Pipelines Australia Pty Ltd
ACN 079 089 268
of 180 Greens Road, Dandenong, Victoria
(TPA)
2.	Transmission Pipelines Australia (Assets) Pty Ltd
ACN 079 136 413
of 180 Greens Road, Dandenong, Victoria
(TPA Assets) and
3.	Victorian Energy Networks Corporation
of 433 Smith Street, North Fitzroy, Victoria
(VENCorp)

Hereby agree in writing that:
Subject to section 5(3) of the Gas Industry Act 1994 (Vic), the transmission pipeline or system of transmission pipelines or facility described below which does or will form part of the Gas Transmission System (as defined in the TPA Service Envelope Agreement dated [       ]) in accordance with and by operation of:
(a)	the Extensions/Expansions Policy of TPA and TPA Assets, (and as provided for in the Principal Transmission System Access Arrangement of TPA and TPA Assets); and
(b)	clauses 3.1(a)(2) and (3) of the TPA Service Envelope Agreement,
and which is:
(c)	owned or operated, or to be owned or operated, by TPA and/or TPA Assets; and
(d)	connected to the system referred to in the definition of “gas transmission system” in section 3 of the Gas Industry Act 1994 (Vic),
is, or will be, an approved connection for the purposes of the definition of “gas transmission system” in section 3 of the Gas Industry Act 1994 (Vic).

DESCRIPTION OF PIPELINES AND/OR FACILITIES WHICH ARE APPROVED CONNECTIONS AND INCORPORATED IN THE GAS TRANSMISSION SYSTEM (as defined in the Gas Industry Act 1994 (Vic)):

[Description to be inserted here]

Attachment 1 (continued)

Executed as an agreement:
SIGNED
for Transmission Pipelines Australia
Pty Ltd by its attorney in the presence of:
			
Witness	Attorney

Name (please print)	

SIGNED
for Transmission Pipelines Australia
(Assets) Pty Ltd by its attorney in the presence of:
			
Witness	Attorney

Name (please print)	

The official seal of
VICTORIAN ENERGY NETWORKS
CORPORATION is affixed to this
document:
			
Secretary	Director

Name (please print)	Name (please print)