2007 annual report to primary industries and ......2007 annual report – riverland pipeline march...

2007 Annual Report – Riverland Pipeline March 2008

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2007 ANNUAL REPORT

TO

PRIMARY INDUSTRIES AND

RESOURCES SA

(Petroleum and Geothermal Group)

ON

Pipeline Licence 6

RIVERLAND PIPELINE

March 2008


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TABLE OF CONTENTS

1 INTRODUCTION ................................................................................................... 4

2 PIPELINE THROUGHPUT .................................................................................... 4

3 STATEMENT OF EXPENDITURE ........................................................................ 4

4 SAFETY AND ENVIRONMENT ............................................................................ 4

4.1 Environmental Management ..................................................................................4

4.2 Environmental Audits.............................................................................................4

5 INSPECTION AND MAINTENANCE ACTIVITIES................................................ 5

5.1 Routine Inspection and Maintenance....................................................................5

5.2 Non-Routine Maintenance......................................................................................5

6 CORROSION CONTROL...................................................................................... 6

6.1 Coating....................................................................................................................6

6.2 Pipeline Cathodic Protection .................................................................................6

7 RIGHT OF WAY MANAGEMENT ......................................................................... 6

7.1 Right of Way Patrols...............................................................................................6

7.2 Signage ...................................................................................................................6

7.3 Landholder Contacts..............................................................................................7

7.4 Pipeline Awareness Program ................................................................................7

7.5 Pipeline Location Service ......................................................................................7

8 EMERGENCY MANAGEMENT............................................................................. 7

8.1 Emergency Response Plan....................................................................................7


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8.2 Emergency Response Exercise.............................................................................7

9 COMPLIANCE ISSUES ........................................................................................ 8

9.1 Compliance Audits .................................................................................................8

10 MANAGEMENT SYSTEMS........................................................................... 8

11 REPORTS GENERATED IN 2007................................................................. 9

12 KNOWN OR FORESEEABLE ACTIVITIES AFFECTING THE PIPELINE ... 9

13 FUTURE OPERATIONS................................................................................ 9

APPENDIX 1 : ASSESSMENT OF DECLARED ENVIRONMENTAL MANAGEMENT OBJECTIVES 2007.................................................................................................... 10

APPENDIX 2 : RIVERLAND PIPELINE POTENTIAL SURVEY RESULTS (FEBRUARY 2007).................................................................................................... 14

APPENDIX 3 : RIVERLAND PIPELINE POTENTIAL SURVEY GRAPHICAL RESULTS (FEBRUARY 2007) .................................................................................. 26


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1 Introduction

The Riverland Pipeline is operated and maintained by APT O&M Services Pty. Ltd. (herein referred to as APT O&M) a company within the APA Group. APT O&M previously traded as Origin Energy Asset Management Services and was sold to APA Group on 2 July 2007.

This annual report has been prepared by APT O&M on behalf of Envestra Limited, the pipeline licensee, in accordance with section 33 of the Petroleum Regulations (SA) 2000 and meets the requirements of South Australian Pipeline Licence 6.

As required by Pipeline Licence 6, an annual review of the Riverland pipeline operations for the 2007 calendar year is provided herein.

2 Pipeline Throughput

The pipeline throughput for the year 2007 was approximately 894TJ.

3 Statement of Expenditure

Commercial in confidence.

4 Safety and Environment

There were no reported safety or environmental incidents on the Riverland Pipeline during 2007.

4.1 Environmental Management

To comply with the requirements of Australian Standard AS2885 “Pipelines – Gas & Liquid Petroleum” and the South Australian Petroleum Act and Regulations 2000, APT O&M operates the pipeline in accordance with the Riverland Pipeline Statement of Environmental Objectives (SEO) which defines performance objectives for management of environmental issues along the pipeline right of way. All SEO Objectives were achieved in 2007. An annual summary of SEO compliance is contained in Appendix 1.

In accordance with the requirements of AS2885, line of sight between pipeline marker posts has been preserved along the pipeline easement to safeguard against any third party damage to the asset.

4.2 Environmental Audits

An environmental audit was commissioned by the SA Pipelines Group to assess the performance of Riverland Pipeline activities in accordance with the requirements of the Riverland Pipeline Licence (PL6) and environmental objectives specified in the Statement of Environmental Objectives (SEO) for the Riverland Pipeline (Dec 2003). The environmental audit comprised of an inspection of the Angaston to Berri natural gas transmission pipeline and Murray Bridge natural gas lateral pipeline corridors and a review of operational systems and programs associated with the ongoing monitoring and measurement of environmental objectives for the Riverland pipeline. Representatives from the operating group participated in the environmental audit conducted on 12 to14 June 2007. The audit demonstrated that the pipeline corridor and infrastructure sites are in good condition, ensuring the integrity of the gas infrastructure and stability of the ground surface along the pipeline corridor. The audit found that activities associated with the operation and maintenance of the Riverland pipeline are generally being performed in accordance with the environmental objectives specified in the SEO.


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There were 5 recommendations for improvement identified during the course of the environmental audit. They related to soil stability, wombat activity along the pipeline corridor and the management of overgrown vegetation affecting the line of sight along the corridor. One of the recommendations has been actioned and the remaining 4 are scheduled to be completed during 2008. The current and previous environmental audits have demonstrated that the environmental objectives for the Riverland Pipeline specified in the SEO and APIA Code of Environmental Practice are being met as part of the ongoing management of the pipeline corridor and operation and maintenance activities. As a result of the June 2007 audit it was recommended that environmental audit frequency is extended to every second year. This change in frequency will be proposed in the December 2008 SEO revision.

5 Inspection and Maintenance Activities

5.1 Routine Inspection and Maintenance

Routine maintenance on the Riverland Pipeline has been carried out in accordance with the maintenance schedule contained in the Riverland Pipeline Safety and Operating Plan. This has consisted of patrols, 6 monthly maintenance of valves and other mechanical equipment and annual maintenance of electrical and instrumentation components. The meters were replaced at National Dairies Meter Station and Murray Bridge Gate Station.

The Angaston reciprocating compressor unit is owned by Envestra Ltd and operated and maintained by Epic Energy under a service agreement with APT O&M. Routine maintenance was carried out on the Angaston compressor unit during 2007. This maintenance included routine inspection and testing of the Fisher type gas regulators, testing of the station safety relief valves, battery inspection and testing, electrical compliance tests, junction box inspections, testing of meter station instrumentation, compressor unit control / shutdown systems, compressor unit mechanical systems and oil sampling. Epic Energy will continue to operate and maintain the Angaston Compressor station under the Service Level Agreement with APT O&M in 2008.

5.2 Non-Routine Maintenance

The following non-routine maintenance was carried out during 2007:

• A number of sacrificial anodes were installed at the Berri end of the pipeline to improve the level of cathodic protection.

• CloseSure flanges are installed on the Riverland Pipeline to enable pigging facilities to be attached to the pipeline. An attempt was made to refurbish the plug in a leaking CloseSure flange at MLV5, but was unsuccessful due to gas bypassing the completion plug, making it unsafe to remove the blind flange. The leak was found to be from an external guide pin and was able to be repaired without removing the plug.

Four other CloseSure flanges on the pipeline were inspected for leakage past the plug and one was found to be leaking. The plug was found to be loose in another flange. Replacement of three flanges by hot tap and stopple will be required before the pipeline can be pigged.

• Maintenance and servicing of regulators was required at the Murray Bridge Gate Station and T&R Meats Meter Station due to the regulator pilots freezing. This resulted in low gas supply pressure at times of increased flow. The station configuration was modified to have a normally open bypass set at a lower supply pressure to ensure that a gas outage was avoided. Freezing of the regulators was caused by low ambient temperatures and a higher than normal pressure in the Moomba to Adelaide Pipeline, which feeds the Riverland Pipeline. The Murray Bridge Gate Station capacity will be upgraded in 2008, which includes installation of a water bath heater.


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• Minor modifications were made to pipework in the Angaston Compressor Station after it was identified that two pipes were rubbing due to vibration when the compressor was running.

6 Corrosion Control

To mitigate corrosion, the Riverland pipeline is coated with a High Density Polyethylene (HDPE) coating system which serves to isolate the external pipeline surfaces from corrosive elements in the surrounding environment. Field joints are coated with a field applied tape wrap system. Secondary protection at coating imperfections is achieved through the use of cathodic protection.

6.1 Coating

An excavation of a coating defect was carried out at KP 41.9 on the Berri lateral. This excavation was outstanding from the 2005 DCVG Survey and had been delayed due to difficulty obtaining land access. The DCVG Survey indicated a 15% IR drop at this site, however no corrosion was evident when the pipeline was excavated. The coating was found to have been damaged by white ants, which was consistent with other coating defects excavated in 2006. The pipeline and the coating were repaired. The next DCVG survey will be carried out in 2010.

6.2 Pipeline Cathodic Protection

The effectiveness of the cathodic protection is monitored by carrying out a full line potential survey on a six monthly basis as per APT O&M Work Instruction 6606. In February 2007 routine checks of test points along the pipeline showed that all sections of the pipeline were protected and there were no major areas of concern for the CP system on the pipeline. The February 2007 potential survey results have been tabulated in Appendix 2 with the associated graphical summary in Appendix 3.

A six monthly Cathodic Protection survey of the Riverland Pipeline was completed in November 2007 and indicated that part of the pipeline close to Berri was unprotected. It was found that there was an electrical short on the pipeline from deteriorated rubber at a pipe support bracket that was draining current from the pipeline. The insulation on the support has been replaced and the pipeline potential was confirmed to have increased to an acceptable level by sampling a number of test points. The November survey results have not been included in this report as they do not represent the normal cathodic protection levels. Two additional coating defects at the Berri end of the pipeline will be excavated in 2008 to verify that the lapse in Cathodic Protection has not caused corrosion of the pipeline.

7 Right of Way Management

7.1 Right of Way Patrols

In accordance with the maintenance schedule, ground patrols were carried out weekly within the townships of Murray Bridge, Swan Reach, Angaston and Berri. Ground patrols were carried out monthly of the entire pipeline route and aerial patrols were carried out quarterly.

7.2 Signage

All signage on the Riverland Pipeline is installed in accordance with AS2885 and maintains “Line of Sight”. The pipeline signage is monitored and replaced as required, as part of the routine patrol duties.

Compound signage providing contact details, emergency “Toll Free” numbers, site location and “HAZCHEM” details are installed at all facilities on the Riverland Pipeline. This signage is maintained in conjunction with routine activities. Re-branding of pipeline markers has commenced to reflect the change in pipeline operator’s name.


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7.3 Landholder Contacts

There are 116 landowners /occupiers along the Riverland Pipeline and laterals. During 2007, notices were sent to landowners and occupiers along the pipeline route in relation to cathodic protection surveys.

A property owner contact scheme is in place to visit each owner or occupier annually. This is to ensure that ongoing communication is maintained with landowners and occupiers and to identify and address any issues arising. Additional contacts were made with respective landholders and/or occupiers in the course of routine pipeline operations and maintenance activities (eg: corrosion surveys through properties, line valve maintenance, routine patrols). All landowners/occupiers were visited in the last quarter of 2007. Each land owner/occupier was reminded of their obligations to ensure pipeline safety and presented with information relating to Pipeline Safety and the Dial Before You Dig Service.

Landowners/occupiers were asked if they had any issues regarding the right of way and were also made aware of requirements and obligations with respect to the pipeline easement. There was no landowner/occupier complaints received during 2007.

7.4 Pipeline Awareness Program

In addition to the landowner/occupier visits, a formal Pipeline Awareness Program for the Riverland Pipeline is in place. The 2007 Awareness Program involved visits to fire authorities, police, ambulance, councils, earthmoving contractors and various community members, highlighting pipeline safety and awareness. The focus of the visits is to improve the awareness of pipeline operations and to provide the community with key contacts to enable sound management of activities in the vicinity of the pipeline assets.

7.5 Pipeline Location Service

APT O&M provides a free service to locate its pipelines for other utilities and third parties carrying out civil work in the vicinity. This is administered through the Dial Before You Dig (1100) organisation. There were a total of 69 location requests along the Riverland pipeline in 2007. All works carried out within the pipeline easement were conducted under APT O&M’s “Permit to Work” System. The works are constantly supervised to ensure the safety and integrity of the pipeline system and personnel.

8 Emergency Management

8.1 Emergency Response Plan

The Emergency Response Plan (which is a combined plan for PL6 and PL11) was reviewed and updated in June 2007 to incorporate owner and operator name changes and changes to the organisation structure. Recommendations from the May 2007 emergency exercise were also incorporated. The Emergency Response Plan for the Riverland pipeline is due for review in June 2008.

8.2 Emergency Response Exercise

The last emergency exercise conducted for the Riverland pipeline system occurred in May 2007. The exercise was carried out on the Riverland/Berri to Mildura transmission pipeline system. It simulated a realistic emergency scenario and was designed to assess the ability of field operators and the emergency response team to respond to both a serious injury and a major gas escape from a transmission pipeline, in an industrial area. As a result of the emergency exercise 13 recommendations were made and 11 of these recommendations have been actioned. The remaining two actions will be completed during 2008.


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9 Compliance Issues

During 2007 the Riverland Pipeline was operated and maintained in compliance with the South Australian Petroleum Act 2000, Petroleum Regulations 2000 and Pipeline Licence 6. Compliance with all objectives contained within the Riverland Pipeline’s Statement of Environmental Objectives was achieved during 2007.

9.1 Compliance Audits

An internal audit of the Riverland Pipeline Safety and Operating Plan (SAOP) was carried out in June 2007. The audit of the Riverland Pipeline assessed the operator’s compliance to the SAOP, and section 4 of AS 2885.3 and confirmed the pipeline is being maintained in accordance with the SAOP and relevant requirements. To ensure continuous improvement and ongoing compliance to AS 2885, the audit made 13 recommendations in total, of which 8 have been actioned. Five remaining actions have been scheduled for completion in 2008 along with three outstanding actions from previous audits.

10 Management Systems

APT O&M utilises a number of management systems to ensure effective operations and management of the pipeline. Some of these are listed below:

• A Health Safety and Environment Management System that governs all APT O&M operations as they impact occupational health, safety and environmental matters.

• A risk management system to ensure that hazards are identified and risks evaluated and managed. Hazards are identified using HAZOPs, safety reviews, job safety analysis, incident reports and investigations, audits and inspections together with the AS2885 risk assessment.

• The APT O&M Gas Transmission Pipeline Operations and Maintenance Procedure Manual containing standards and practices for the operation and maintenance of transmission pipelines managed by APT O&M. These procedures are continually reviewed and periodically updated as appropriate.

• An Asset Protection Operations and Maintenance Manual containing standards and practices for activities such as coatings, pipeline patrols, leakage management, cathodic protection, earthing and DCVG surveys.

• A Document Management System which allows the controlled updating, distribution and viewing of pipeline documentation.

• A Management of Change System that assesses proposed changes to the pipeline across all engineering disciplines, operational parameters and documentation. This system interfaces with the Document Management System to ensure relevant documentation affected by the change is updated and distributed.

• An audit program that assesses contractor and operational management performance.

• An electronic database system called the Management of Audits, Regulatory Compliance and Incident System (MARCIS). The system provides ready access to all electronic copies of legislation, regulations, codes, licenses, etc through an associated intranet facility. Using this system APA Group has adopted a ‘compliance grid’ approach to summarising requirements into an easily understood and manageable format. Where requirements are dated and periodically actionable, the system is designed to automatically advise the responsible manager of the pending requirement and track the requirement through to completion.


Page 9 of 27

11 Reports generated in 2007

APT O&M generated the following reports during 2007:

• PL6 Annual Report for 2006, submitted in March 2007

• Quarterly Compliance with SEO Reports

• Pipeline Licence PL6 Environmental Audit report June 2007

• Annual Cathodic Protection Potential Survey Report February and November 2007

• Riverland and Berri to Mildura Transmission Pipeline 2007 Emergency Response Exercise May 2007

• Riverland Safety and Operating Plan Audit Report June 2007

12 Known or foreseeable Activities affecting the pipeline

Due to the growth in peak demand on this pipeline it is anticipated that the Angaston Compressor will need to be run for extended periods of time. Minor modifications to the compressor are being considered to facilitate continuous operation of the compressor without tripping the over current protection circuitry.

13 Future Operations

Future operations planned for the next 12 months include:

• Routine preventative maintenance in accordance with the Safety and Operating Plan.

• An Emergency Response Exercise.

• Environmental monitoring and an environmental audit as required by the Statement of Environmental Objectives and the Environmental Management Plan for the pipeline.

• An audit of the pipeline facilities.

• Pipeline Awareness seminars with third parties.

• Monitoring of the level of cathodic protection on the pipeline.

• Murray Bridge Gate Station upgrade including installation of a water bath heater.


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APPENDIX 1 : ASSESSMENT OF DECLARED ENVIRONMENTAL MANAGEMENT OBJECTIVES 2007

OBJECTIVE GOAL MEASURE/HOW ACHIEVED/NOT ACHIEVED COMMENTS

1. Vegetation – to promote and maintain vegetation in accordance with surroundings

To encourage regrowth of native grasses and shrubs along the right-of-way, (i.e. – not in farmland used for cropping or pasture).

To ensure environmental weeds and pathogens along the right-of-way are managed in a manner consistent with adjoining land. To manage vegetation regrowth along the right-of-way, so as not to restrict access (our access not third party access) or to incur damage to the pipeline infrastructure. To monitor and manage Branched Broomrape (Orobanche ramose) within defined containment area along Murray Bridge lateral pipeline.

To ensure that pipeline operations do not impinge upon existing native fauna habitats.

Native vegetation regrowth (grasses, shrubs & trees) along easement is typical of adjoining areas. No new weed infestations as a result of pipeline operations. Minimal spread of weeds along the pipeline easement. Vegetation trimmed rather than cleared where possible. No identified spread along pipeline easement as a result of operations & maintenance activities. No landholder complaints or non-compliances with Code of Control for Broomrape in the course of pipeline operations. Native fauna habitats along easement are typical of adjoining areas.

Achieved

Vegetation clearance took place throughout 2007 to address actions fom the 2006 and 2007 Environmental Audits.


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2. Soil – to conserve the original state of the soil

To minimise the likelihood of erosion or subsidence occurring along the right-of-way.

To manage soil rehabilitation areas in an appropriate manner.

Soil erosion and/or subsidence is better, or at least consistent with the surrounding area.

Rehabilitation areas support regrowth consistent with the surrounding area

Achieved There is no evidence of soil compaction or associated poor plant growth on the pipeline easement.

3. To promote and maintain water drainage patterns where it is not detrimental to the pipeline

To ensure that operation and maintenance activities do not give rise to pollution of watercourses To ensure that there is no evidence of altered drainage patterns, unless required to protect the pipeline from wash away

Solid & liquid wastes have not polluted rivers, streams, watercourses, dams or lakes.

Bank stability maintained, especially following high rainfall events.

Likely alteration to drainage patterns not evidenced by soil erosion or subsidence.

Achieved

No alteration to drainage patterns were observed in 2007.

4. To minimise uncontrolled atmospheric emissions.

To limit uncontrolled emissions to atmosphere. To minimise dust generation.

No unintentional gas emissions reported.

No complaints from third parties in respect of air quality.

Compliance with Legislative requirements of Environment Protection Act1993 in respect of gaseous and dust emissions.

Achieved

There have been no unintentional gas emissions throughout 2007.

5. Land Use – to avoid significant disturbance to land use or damage to infrastructure

To minimise disturbance to land use and damage to infrastructure.

To inform landholders of likely land use disturbance as a direct result of operations.

No complaints from landowners in relation to land use, modifications or infrastructure damage

Records show that landowners are appropriately consulted regarding pipeline activities, which may affect their particular property.

Achieved Landowner liaison has been completed for 2007 and there were no complaints received from landowners.


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6. Public Safety – to minimise risks to public and third party health and safety

To ensure that adequate measures are in place to protect public and third party safety during operations and maintenance activities.

To prevent third party access on the pipeline easement

To ensure that adequate measures are in place to protect public and third party during routine maintenance operations.

To minimise the risk of fire during routine operations

No occupational health, safety and welfare incidents or accidents involving third parties.

No unauthorised activity on the pipeline easement.

Documentation evidence of public safety management and pipeline awareness sessions, in the course of pipeline operations. Adherence to AS2885 demonstrated via annual reports, emergency response reports and Fitness for Purpose reports.[ ref to Petroleum Act 2000 ]

No fire outbreaks arising from pipeline operations.

Achieved

Achieved

No incidents occurred

Pipeline Awareness presentations were carried out for the Riverland Pipeline to improve pipeline awareness and pipeline Safety in 2007.

7. To minimise noise due to operations

To ensure that operations comply with noise standards and where possible ensure landowners are not disturbed.

No noise related complaints from landowners or third parties.

Compliance with legislation requirements of the environmental protection Act 1993 in respect of noise emissions.

Achieved No complaints were received from land owners or third parties.

8. Waste – to manage all operational wastes in an appropriate manner

To ensure that all wastes are removed from the site and, re-used, re-cycled or appropriately disposed of.

No waste evident on or off the easement arising from pipeline operations. Documented waste disposal records to confirm appropriate disposal.

Achieved Normal operational waste returned to the depot and dealt with accordingly.


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9. To appropriately manage cultural heritage sites during pipeline operations and

maintenance activities.

To manage identified Aboriginal and European heritage sites in accordance with prescribed procedures.

Management of identified heritage sites in consultation with traditional custodians.

Compliance with work instructions in relation to heritage site management.

Compliance with Legislative requirements of Aboriginal Heritage Act 1988 and Heritage Act 1993 in respect of previously identified and potentially ‘new’ sites along the pipeline easement.

Achieved

10. To minimize the risk of loss of supply to consumers.

To minimise the potential for significant disruption of gas supply to customers where possible.

No interruption to supply

Achieved

No interruptions to supply in the Riverland region during 2007.


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APPENDIX 2 : RIVERLAND PIPELINE POTENTIAL SURVEY RESULTS (FEBRUARY 2007)

MURRAY BRIDGE LATERAL

K.P. LOCATION GPS CO-ORD GPS CO-ORD

POT ON FEB

07 (mV)

POT. (OFF) (mV)

ANODE (I)

(mA)

PREV ON FEB 06

(mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

0.0 MLV 1 Sedan Junction 54H0339505 UTM6175173 -1344

-1007

1.4 Mg anode 54H0338869 UTM6174062 -1209 -997 0 Anode disconnected (August 2005)

2.7 54H0339032 UTM6172608 -1254 -951 On road

4.5 54H0339001 UTM6170888 -1252 -910 On road

5.8 54H0339012 UTM6169608 -1315 -864 On road

7.3 54H0339037 UTM6168144 -1249 -879 On road

9.2

Mag anode installed prior to Feb 2007 54H0339371 UTM6166307 -1218 -851

On road, new anode installed

10.5 54H0339303 UTM6164985 -1212 -854 On road

11.3 54H0339272 UTM6164187 -1184 -912 On road

12.3 Enter & exit gate (east) 54H0339664 UTM6163277

(see report) -882

Enter at gate off road at "yellow" paint on post, TP along f'line

13.3 Pipe leaves paddock 54H0339795 UTM6162374 -1152 -853

On road, just past driveway

14.5 54H0339715 UTM6161188 -1160 -876 On road

15.8 Mg anode 54H0339734 UTM6159822 -1070 -7 -867 7

On road, near road crossing. Anode potential = -1.68V (Feb 2006)

17.0 54H0339647 UTM6158716 -1070 -857 On road, at road crossing


Page 15 of 27


POT ON FEB

07 (mV)

POT. (OFF) (mV)

ANODE (I)

(mA)

PREV ON FEB 06

(mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

18.3 54H0339583 UTM6157344 -1074 -834 On road, at road crossing

19.6 54H0339571 UTM6156140 -1040 -827 On road

20.6 54H0339543 UTM6155139 -1045 -828 On road

21.8 54H0339376 UTM6153870 -1070 -830 On road

23.3 54H0339115 UTM6152474 -1072 -821 On road

24.8 Enter & exit gate by KP 23.3 54H0338817 UTM6150943 -1094 -896 On road

26.3 Mg anode 54H0338563 UTM6149538 -921 _ Anode disconnected(Feb 2007)

27.8 54H0338320 UTM6147949 -1009 -926

28.7 54H0338231 UTM6147146 -1011 -952 On road, Percys Rd.

29.7 54H0338683 UTM6146240 -981 -905 On road, Eilcher Rd.

31.4 Mg anode 54H0339449 UTM6144718 -1004 -966

Anode disconnected (August 2005). Put logger on here

32.8 54H039357 UTM6143361 -1055 -999 On road

34.2 54H0339225 UTM6141990 -1085 -980 On road

35.6 54H0339033 UTM6140593 -1138 -

1021 On road

37.0 Mg anode 54H0338831 UTM6139217 -1117 5 -

1081 11 On road. Anode potential = -1.68V (Feb 2006)

38.1

Adjacent Mannum - Whyalla pipeline 54H0338653 UTM6138048 -1137

-1163 On road

39.2 Pfeiffer Rd - Zn earthing 54H0338569 UTM6137055 -994

-1000 On road

39.2 Mg anode 54H0338564 UTM6137026 -1032 -

1057

On road. Anode disconnected (August 2005).


Page 16 of 27


POT ON FEB

07 (mV)

POT. (OFF) (mV)

ANODE (I)

(mA)

PREV ON FEB 06

(mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

39.9 54H0338539 UTM6136333 -1034 -

1116 Just off the road on a driveway

41.2 Pfeiffer Rd - Zn earthing 54H0338510 UTM6135067 -1011

-1064 On road

41.2 Old TP 54H0338508 UTM6135054 -1061 -

1064 On road

42.8 54H0338570 UTM6133429 -1030 -

1116 On road

43.7 Mg anode: Reedy Creek 54H0338678 UTM6132477 -1040

-1080

Anode disconnected (August 2005).

45.1

Mannum Murray Bridge Rd - Zn Earthing 54H0338763 UTM6131136 -1045 -968 On road

46.7 54H0338703 UTM6129603 -1005 -

1032 On road

48.1 54H0338646 UTM6128123 -1105 -

1057 On road

48.9

Zn earthing, Mg anode installed prior to Feb 2007 54H0338624 UTM6127467 -1101

-1077

On road, new anode installed

48.9 Old TP 54H0338619 UTM6127442 -1081 -

1069 On road

49.8 54H0338569 UTM6126462 -1090 -

1073 On road

51.7 2 gates, 2nd fence line 54H0338711 UTM6124637 -1030

-1027

53.0 54H0338991 UTM6123406 -1123 -

1037 On road, Wagennecket Rd.

54.6

Contact landowner for access _ _

(see report) _

No access, landowner could not be contacted

56.0 08 8532 3325 54H0339528 UTM6120448 -1103 -985 Enter via Govt. Rd off Mannum Road


Page 17 of 27


POT ON FEB

07 (mV)

POT. (OFF) (mV)

ANODE (I)

(mA)

PREV ON FEB 06

(mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

57.1 Wilkin Rd - Zn earthing 54H0339551 UTM6119322 -1135 -950

57.1

Old TP, Mg anode installed prior to Feb 2007 54H0339556 UTM6119319 -1104 -951 New anode installed

59.3 Stone fence road 54H0339876 UTM6117177 -1157 -

1016 On road, Stonefence Rd.

60.6 54H0339911 UTM6115805 -1216 -990

61.9 Via gate on Bigmore Rd 54H0339982 UTM6114948 -1260 -967

Enter via gate on north side of house in Guerin Rd

62.6 Bigmore Rd - Zn earthing 54H0340155 UTM6113893 -1284

-1006

62.6

Old TP, Mg anode installed prior to Feb 2007 54H0340155 UTM6113896 -1254

-1009 New anode installed

63.4 Nilpeena Rd - Zn earthing 54H0340867 UTM6113627 -1280 -970

63.4 Old TP - Mg anode 54H0340871 UTM6113616 -1220 3

-1001 3

Anode potential = -1.64V (Feb 2006)

64.0 Murray Bridge M/S Inlet (U/S) 54H0341331 UTM6113209 -1274

-1127

Reading taken across insulation at V1. Put logger on here.

64.0 Murray Bridge M/S Inlet (D/S) -575 -554

Reading taken across insulation at V1

64.0 Murray Bridge M/S Outlet (U/S) 54H0341337 UTM6113213 -569 -554

64.0

Murray Bridge M/S Outlet (D/S) Nat. Dairies -1286 -993

64.0

Murray Bridge M/S Outlet (D/S) Metro Meats 470 -495

Reading taken at V14 u/ground side of valve (not insulated)

Navigation Datum - Australian Geodetic 66


Page 18 of 27

BERRI LATERAL

K.P. LOCATION GPS CO-ORD GPS CO-ORD POT ON FEB 07 (mV)

POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

0

Angaston M/S outlet (D/S) - Berri Lat. 54H0318451 UTM6180174 -1340 1 -1400 1

0.4 Zn earthing 54H0318528 UTM6189865 -1098 -1003

0.6 Crennis Mines Rd 54H0318471 UTM6179706 -1060 -895

2.2 Mg anode (Long Gully Rd) 54H0319398 UTM6178371 -989 1 -842 1

Anode potential = -1.38V (Feb 2007)

3.5 54H0320275 UTM6177447 -959 -850

4.0 Mg anode ?? 54H0320707 UTM6177231 -989 1 -856 1

Possibly Zn Anode, potential =-1.15V (Feb 2007)

5.5 54H0322204 UTM6177080 -953 -943 Put logger on here

7.1 Lindsay Park Stud (In driveway) 54H0323232 UTM6175981 -1002 -921

8.1 Mg anode Collingrove Rd 54H0324094 UTM6175697 -1046 2 -950 1

Anode potential = -1.54V(Feb 2006)

9.6 Sedan - Angaston Rd 54H0325361 UTM6176216 -1063 -856

10.9 Mitchells Paddock 54H0326561 UTM6175703 -1027 -550

12.1 Zn anode, Mt Eagle Rd 54H0327747 UTM6175438 -1070 12 -980 32

Requires new current shunt, have to open box to measure current

13.3 Henshke Rd 54H0328875 UTM6175137 -1036 -860

14.5 White Gates Rd 54H0330024 UTM6174907 -1030 -930

15.6 Zn anode 54H0331115 UTM6174968 -1036 1 -895 23

Requires new current shunt, have to open box to measure current


Page 19 of 27


POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

16.8 54H0332143 UTM6175520 -963 -835

KP15.6 - KP23.1 are in property belonging to Joe Keyne

18.5 54H0333828 UTM6175070 -1028 -853 Contact him on 085648235 before entering property.

19.8 54H0335040 UTM6175167 -968 -810

Joe Keynes house is located at farm property at Keyneton on Keyneton to Sedan Rd

21.3 54H0336508 UTM6175478 -961 -810

21.9 54H0337050 UTM6175612 -947 -725

23.1 54H0338121 UTM6176012 -982 -610

24.7 SA water pipe Crossing 54H0339466 UTM6175189 -963 -530 -370 Put logger on here

24.7

MLV 2 Sedan Junction - Murray Bridge 54H0339505 UTM6175173 -1051 -660

26.0 Zn anode, Old house 54H0340701 UTM6174808 -890 5 -770 28

Zn anode potential =-0.90V, possibly should be replaced

27.1 Exits paddock 54H0341544 UTM6174551 -929 -700

28.6 Mg Anode 54H0343247 UTM6174572 -927 -720 2

No anode at this location (Feb 2007). Only one cable in test point head

30.0 54H0344720 UTM6174584 -1009 -742

30.7 Bitumen Rd 54H0345407 UTM6174591 -907 -738

31.6 Red tape on tree 54H0346197 UTM6174652 -902 -763

32.7 Cross Rd 54H0347346 UTM6174612 -989 -777

33.7 54H0348346 UTM6174624 -889 -782


Page 20 of 27


POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

34.9 Zn anode 54H0349581 UTM6174626 -902 6 -760 11

Zinc anode potential = -1.02V. Note: both lugs insulated from box where current measured

36.3 54H0350990 UTM6174638 -1020 -806

37.8 54H0352460 UTM6174714 -962 -753

39.3 54H0353994 UTM6174763 -1020 -851

40.0 54H0354692 UTM6174767 -1075 -850

41.7 54H0356400 UTM6174768 -1033 -862

43.1 54H0357727 UTM6174854 -1070 -869

44.5 54H0359142 UTM6174912 -1104 -897

45.4

Mag anode installed prior to Feb 2007 54H0360062 UTM6174931 -1113 -913 New anode installed

47.5 54H0362118 UTM6174910 -1155 -930

Contact property owner(S.Lang) before entering. Enter via gate at KP45.4(new lock installed)

48.9 54H0363462 UTM6175054 -1165 -940

50.3 54H0364943 UTM6175115 -1160 -901

52.0 54H0366574 UTM6174867 -1234 -943

53.6 54H0368138 UTM6174390 -1280 -819

55.1 54H0369576 UTM6174560 -1267 -923 Near Driveway

55.5 MLV 3 54H0369993 UTM6174692 -1270 -916

55.5 Zn Earthing (near MLV) 54H0369993 UTM6174692 -1287 -904


Page 21 of 27


POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

56.2 Zn Earthing 54H0370243 UTM6174630 -1076 -767

Black lead (Zn? ) potential = -0.83V, White lead (pipe?) potential = -1.29V

57.0


57.5 River bank - D/S side, Zn Earthing 54H0371069 UTM6173959 -1280 -836

59.1 MLV 4, Zn Earthing 54H0371826 UTM6172701 -1276 -941

59.6 Mg anode 54H0372387 UTM6172730 -1441 1 -1060 3 Anode potential = -1.60V (Feb 2007)

60.4 54H0373175 UTM6172754 -1298 -958

Enter property Swan Produce see property owner drive towards easement

62.0 54H0374826 UTM6172784 -1269 -900

Easement, btween KP62.0 and KP67.5 keep fence on your RHS

63.2 54H0375968 UTM6172788 -1276 -872 Easement

64.4 54H0377170 UTM6172806 -1282 -865 Easement

66.0 54H0378781 UTM6172827 -1218 -893 Easement

67.5 54H0380300 UTM6172841 -1306 -964

Easement, between KP67.5 and KP68.9 keep fence on your LHS

68.9 54H0381697 UTM6172863 -1325 -961 Easement

70.0 54H0382795 UTM6172870 -1341 -900 Easement

70.8 54H0383604 UTM6172883 -1320 -772 Easement

72.2 54H0384981 UTM6172916 -1322 -893 Easement


Page 22 of 27


POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

73.3

Mag anode installed prior to Feb 2007 54H0386019 UTM6172917 -1301 -854

Gravel Road, new anode installed

75.0 54H0387479 UTM6173855 -1279 -875

76.7 54H0388866 UTM6174886 -1225 -1060

From KP 76.7 drive North up fence to gate to get to KP77.6

77.6 54H0389611 UTM6175387 -1288 -1040

78.8 54H0390392 UTM6175901 -1213 -1070

80.1


82.0 54H0392651 UTM6178285 -1200 -969

83.1 54H0393612 UTM6178935 -1220 -954 Exit via fenceline to highway

85.0 54H0395176 UTM6179986 -1168 -867 Enter via driveway near sheds off highway

86.5 54H0396384 UTM6180803 -1155 -854

88.2 54H0397812 UTM6181837 -1138 -893

90.0 54H0399186 UTM6182977 -1139 -945 Last TP before pipeline crosses highway

92.0 54H0400540 UTM6184361 -1128 -959

93.5 Mg anode 54H0402048 UTM6184390 -1169 3 -990 3

94.9 54H0403388 UTM6184398 -1110 -916

96.9 54H0405397 UTM6184645 -1083 -844 enter via driveway

98.3 54H0406780 UTM6184787 -1079 -916

99.8 54H0408316 UTM6184820 -1058 -852

101.1 54H0409563 UTM6184832 -1124 -972

103.1 54H0411596 UTM6185032 -1138 -960


Page 23 of 27


POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

104.2 54H0412718 UTM6185123 -1105 -942 Magger Rd.

105.7 MLV 5, Zn anode 54H0414214 UTM6185283 -1067 -935 10

Zn anode disconnected potential = -0.90V (Feb 2007)

105.7 Zn earthing (near MLV) 54H0414186 UTM6185275 -1166 -983

107.6 54H0415231 UTM6185363 -1070 -865

109.0 54H0417468 UTM6185626 -1069 -883

110.4 54H0418868 UTM6185795 -1089 -952

111.8 54H0420261 UTM6185989 -1084 -902

113.1 54H0421494 UTM6186067 -1101 -915

114.5 54H0422995 UTM6186332 -1148 -921

116.7 54H0425124 UTM6186536 -1085 -950

118.5 54H0427042 UTM6186827 -1068 -857

120.3 54H0428282 UTM6186863 -1108 -929

122.2 54H0430389 UTM6187608 Test point post removed from ground - No cables

124.3 54H0432448 UTM6188178 -1121 -979

126.4 54H0434435 UTM6188855 -1158 -999

127.7 54H0435632 UTM6189288 -1091 -958

129.1 54H0437030 UTM6189713 -1077 -994

133.2 54H0440716 UTM6191518 -1068 -995

134.4 54H0441803 UTM6192028 -1033 -859

136.0 54H0443212 UTM6192703 -1104 -1029

138.2 54H0445221 UTM6193652 -1116 -1036

139.0 MLV 6, Zn earthing 54H0445956 UTM6193994 -1108 -1020


Page 24 of 27


POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

139.9 River bank - U/S, Zn earthing 54H0446672 UTM6194381 -1061 -1047

139.9 River bank - U/S 54H0446672 UTM6194381 -1056 -1044 Put logger on here

141.6 Mg anode 54H0448279 UTM6195121 -987 -1006

Anode Potential = -0.78V, anode disconnected Feb 2006

143.2 54H0449598 UTM6195946 -1011 -1061

144.0 MLV 7 - track to rubbish dump 54H0450298 UTM6196340 -1033 -1068

144.7 54H0450747 UTM6196723 -1004 -962

146.4 54H0451449 UTM6198378 -1004 -1098

148.0 54H0451778 UTM6199898 -960 -1020

149.7 Zn Anode 54H0452144 UTM6201576 -1036 -963 5

Zn anode potential =-0.80V disconnected Feb 2007

151.0 54H0452419 UTM6202851 -1023 -1029

152.4 54H0453206 UTM6203559 -1027 -963 Enter property and see owner

153.9 Cnr Rumball & Puddletown Rd 54H0454464 UTM6203949 -1042 -1054

This TP next to Zn earthing TP

153.9 Zn earthing 54H0454467 UTM6203949 -1037 -1060

155.5 Dalziell Rd - Zn earthing 54H0455388 UTM6204989 -999 -1043

155.5 Old TP 54H0455351 UTM6204952 -997 -1014 This TP next to Zn earthing TP

156.9 Spendiff Rd - Zn earthing 54H0456070 UTM6204990 -986 -964

Take readings well away from post

157.8 Spendiff Rd - Zn earthing 54H0457565 UTM6205007 -963 -956

Take readings well away from post

157.8 Old TP 54H0457564 UTM6205006 -1003 -903 This TP next to Zn earthing TP


Page 25 of 27


POT OFF (mV)

ANODE (I)

(mA)

PREV ON FEB

06 (mV)

PREV. OFF (mV)

PREV. ANODE(I) (mA)

FOR. STRUCT. (mV)

COMMENTS

158.7 Mg anode - Dalziell Rd 54H0457588 UTM6205904 -1049 3 -1030 6

Anode Potential = -1.23V Feb 2007

159.7 Berri M/S - MLV 8 54H0457969 UTM6206380 -1030 -1010

159.7 Berri M/S - Inlet U/S 54H0458124 UTM6206388 -1019 -1010 Put logger on here

159.7 Berri M/S - Inlet D/S -256 -240

Navigation Datum - Australian Geodetic 66


Page 26 of 27

APPENDIX 3 : RIVERLAND PIPELINE POTENTIAL SURVEY GRAPHICAL RESULTS (FEBRUARY 2007)

Potential Summary and Graph for Murray Bridge Lateral

February 2007

-2000

-1900

-1800

-1700

-1600

-1500

-1400

-1300

-1200

-1100

-1000

-900

-800

-700

-600

-500

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

Testing Location

mV

negative to C

u/C

uS

O4 r

efe

rence c

ell

Potential February 2007 -850


Page 27 of 27

Potential Summary and Graph for Berri Lateral

February 2007

-2000

-1900

-1800

-1700

-1600

-1500

-1400

-1300

-1200

-1100

-1000

-900

-800

-700

-600

-500

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88 91 94 97 100 103 106 109 112 115 118 121 124

Testing Location

mV

neg

ati

ve t

o C

u/C

uS

O4 r

efe

ren

ce c

ell

Potential February 2007 -850

2007 annual report to primary industries and ......2007 annual report – riverland pipeline march...

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