Prosecutor's evidence
17Mr I Taylor of senior counsel who appeared with Ms J McDonald of counsel for the prosecutor, tendered the ASF which provided:
1. At all material times, the Prosecutor was a government official (Investigator) appointed under section 127 of the Mine Health and Safety Act 2004 and thereby by section 47A of the Occupational Health and Safety Act 2000 (OHS Act) taken to have been appointed as an inspector under the OHS Act and authorised by section 106 of that Act to institute proceedings in this matter.
2. At all material times the Defendant Austerberry Directional Drilling Services Pty Ltd (ACN 081 885 083) (ADDS) was a corporation with its registered office located at 93a Young Street, Carrington, NSW, 2294.
3. At all material times the sole director of ADDS was Mr Shayne Austerberry, who was concerned in the management of ADDS.
4. At all material times the sole shareholder of ADDS was a company called Directional Nominees Pty Ltd (ACN 074 568 657), the sole shareholder of which was Mr Shayne Austerberry.
5. ADDS provides services including installing pipelines using a trenchless technology called horizontal directional drilling (HDD).
6. At all material times, ADDS was an employer within the meaning of the OHS Act. On 1 August 2009, ADDS employed approximately 17 people. Of those, 5 were engaged in administration including Mr Bob Reynolds, General Manager and Mr Wayne Hunt, Operations Manager.
7. Aside from being the sole director of ADDS, Mr Austerberry's position in ADDS was driller and supervisor of ADDS's drill crews. At all material times, ADDS paid Mr Austerberry a wage.
8. At all material times Eastern Star Gas Limited (ACN 094 269 780) (ESG) was a publically listed corporation whose registered office is level 7, 51-57 Pitt Street, Sydney, NSW, 2000 and the holding company for a group of companies, including Eastern Energy Australia Pty Ltd ACN (009 321 662) (EEA), that undertake coal seam gas exploration in NSW. ESG had full operational control over EEA. On or about 17 November 2011, Santos Limited (ACN 007 550 923) acquired the shares in ESG and, as such ESG became a subsidiary of Santos Limited on or about that date. On or about 30 November 2012, ESG changed its name to Santos NSW Pty Ltd.
9. ESG is the holder of Petroleum Assessment Lease 2 (PAL 2) and Petroleum Exploration Licence 238 (PEL 238) which fully incorporates and fully surrounds PAL 2.
10. The land the subject of PAL 2 and PEL 238 is located near Narrabri in NSW.
11. PAL 2 and PEL 238 are "petroleum titles" granted pursuant to the Petroleum (Onshore) Act 1991 (POS Act). ESG was the nominated 'operator' of the titles, pursuant to the Petroleum (Onshore) Regulation 2007 and the Schedule of Onshore Petroleum Exploration and Production Safety Requirements published by the Department of Mineral Resources in August 1992.
12. Pursuant to section 128 of the POS Act the holder of a petroleum title must carry out all petroleum exploration operations and operations for the recovery of petroleum in the title area in accordance with the provisions of the OHS Act.
THE WORKPLACE - THE BOHENA CREEK PROJECT
13. In or about 2009, ESG required gas and water gathering pipelines to be installed on land within PAL 2 for what is known as the Bibblewindi West Production Pilot (Bibblewindi West Project).
14. The installation of the pipelines was part of petroleum exploration operations and/or operations for the recovery of petroleum and consequently was governed by the POS Act and accordingly was a "mining workplace" as defined in section 4 of the OHS Act.
15. ESG applied to and obtained from the Director General of the then Department of Primary Industry approval to construct the pipelines.
16. ESG either directly or via EEA contracted a Queensland based company, Greene Pipeline Services Pty Ltd atf GPO Trust, trading as GD Pipelines (ABN 63 643 583 248) (GD Pipelines) to install, as part of the Bibblewindi West Project, pipelines to either side of Bohena Creek, using standard trenching techniques.
17. ESG determined to complete the pipeline under Bohena Creek utilising HDD.
18. HDD involves drilling a pilot hole using a directional drilling technique that allows control of direction and depth. A drill head is attached to metal rods (known as the "drill string") and guided towards a reception pit. Once the drill string arrives at the reception pit a reaming device is attached and the pilot hole is enlarged as the reaming bit is returned along the path of the pilot hole. Often the pipeline to be installed is dragged behind the reamer attached to a swivel.
19. HDD is common in the coal seam gas, water and electrical services industries.
ADDS CONTRACT
20. In or about mid 2009, EEA (on behalf of ESG) contracted with ADDS to install the pipe under Bohena Creek (Work Site) using HDD, in order to complete the pipeline partially installed by GD Pipelines (Bohena Creek Project).
21. ESG had engaged ADDS on two other similar jobs in early 2009, as a sub-contractor to a company called Adtech FRP Pipelines. These jobs involved the installation of a fibreglass pipeline for ESG from Bibblewindi to Wilga Park (Adtech Jobs).
22. The initial inquiry for the work required for the Bohena Creek Project was made by Brett Langley, Manager Surface Engineering for ESG to Mr Bob Reynolds, General Manager of ADDS.
23. Following a site inspection by Mr Reynolds on 21 April 2009, ADDS provided a quotation to ESG dated 20 July 2009 to install the pipeline using HDD across Bohena Creek for a total cost of $312,827.46 (Quotation). The Quotation stipulated that the:
(a) pipe would be supplied by ESG;
(b) fusion joining and debeading was to be done by ESG;
(c) full site access was to be supplied by ESG; and
(d) water was to be supplied by ESG.
24. The Quotation attached to it ADDS's "Terms & Conditions of Trade".
25. On 21 July 2009 EEA accepted the Quotation by issuing a handwritten purchase Order to ADDS (Purchase Order). The Purchase Order was requested by Erhart Stockhausen, Senior Petroleum Engineer for ESG and signed by Peter Lansom, Executive Director Operations for ESG.
26. Mr Stockhausen sent the Purchase Order by email on 22 July 2009 to Mr Bob Reynolds and Wayne Hunt of ADDS. Mr Stockhausen's email of 22 July 2009 stated:
"Note that all personnel will require an induction at the Narrabri office before entering the forest as conditions on site have changed, and I'm assuming some people won't have the normal ESG induction anyway."
27. ADDS appointed Mr Shayne Austerberry as the supervisor of its drill crew on the Bohena Creek Project. He was the person who had responsibility for making the relevant decisions as to ADDS's acts and omissions at the Work Site.
28. In or about July 2009, ADDS made a verbal agreement with a company known as Applied Soil Technology Pty Limited (ACN 081 885 082) (AST) to provide, at an hourly rate, at the Work Site:
(a) a vacuum tanker which would suck mud out of the borehole to be drilled by ADDS and remove it from the Work Site;
(b) a prime mover to tow the tanker; and
(c) an operator.
29. ADDS had engaged AST on at least seven previous occasions.
30. Mr Courtenay Edwards is and was the sole director of AST. Mr Edwards and his wife, Margaret Edwards are the joint shareholders of AST. The principal business activity of AST is the transportation and injection into the ground of liquid food waste. However, AST also provides vacuum tanker services.
31. In or about July 2009, AST made a verbal agreement with a company known as The Saver Guys Pty Ltd (ACN 125 166 832) (TSG) to assist AST carry out its part of the Bohena Creek Project and in particular:
(a) to provide a prime mover to tow AST's vacuum tanker;
(b) to assist in the removal of mud from the Work Site; and
(c) to provide an operator of the prime mover and AST's vacuum tanker.
32. Mr Bruce Austin, who was 57 years old at the time of the accident, was the sole director and shareholder of TSG. The principal business activity of TSG was the provision of services requiring a prime mover, in particular earthmoving. All work undertaken by TSG at the Work Site, pursuant to the verbal agreement with AST referred to above, was provided by Mr Austin.
33. At all material times, the Work Site was the "place of work" of ESG, ADDS, AST and TSG within the meaning of section 8(2) of the OHS Act.
34. At all material times, the Bohena Creek Project was the "undertaking" of ESG, ADDS, AST and TSG within the meaning of section 8(2) of the OHS Act.
SITE SUPERVISION
35. On 21 July 2009, ESG requested GD Pipelines to provide a site supervisor for the duration of the Bohena Creek Project who would, amongst other things, stay "in regular contact with John Higgins (Site Manager) regarding issues and updates."
36. Mr Dan Roulston, an employee of GD Pipelines was appointed as the site supervisor.
37. ADDS employees, Mr Austerberry, Mr Robert Milne, Mr Ken Anderson and Mr Michael Anderson first arrived at the Work Site on the morning of Wednesday 29 July 2009. They were shown around by Mr Roulston.
38. Mr Bruce Austin first arrived at the Work Site on 30 July 2009. Mr Roulston did not show him around the Work Site.
INDUCTION
39. Mr Austerberry and Mr Milne had received an induction by ESG in January 2009 (in preparation for the Adtech Jobs). ESG regarded that induction as still being current and did not require them to undertake a further induction.
40. Mr Roulston arranged for an induction by ESG for Messrs Michael and Ken Anderson and Mr Bruce Austin. That took place on Friday 31 July 2009, two days after work had commenced at the Work Site. It was provided by ESG's safety officer, Tom Bennett at ESG's Narrabri office.
29 JULY 2009
41. When the ADDS employees arrived at the Work Site on 29 July 2009, the pipeline for the Bohena Creek Project was already welded up and lying on the ground at the Work Site ready to be installed when the ADDS crew arrived. The length of pipeline required to be installed under the creek was between 280 metres and 350 metres.
42. The pipeline was constructed from 200mm high density polyethylene pipeline (DN200 PN8 SDR21 PE100 Metric Pressure Pipe Series 1) manufactured by PPI Corporation Pty Limited.
43. ADDS utilised 29 July 2009 to set up its equipment.
44. The entry and exit holes for the pipeline had already been prepared. ADDS was not advised who had prepared those holes.
45. ADDS used star pickets and orange barrier mesh to create a square fence around each of the pits, each being approximately 4 metres across and two metres from the hole.
30 JULY 2009
46. When Mr Austin arrived at the Work Site on the morning of Thursday 30 July 2009, he set up the vacuum truck near the ADDS drilling equipment.
47. Drilling began for the installation of the water pipe, on the western side of the creek, on Thursday 30 July 2009. On that day:
(a) Mr Robert Milne operated the drilling machine;
(b) Mr Shayne Austerberry guided the drill head using the electronic sounder;
(c) Mr Michael Anderson mixed the drilling mud (to create the lubricant) and put it into the reservoir that that ran into the drilling machine;
(d) Mr Ken Anderson kept the bore logs (containing the measurements of depth, distance and the alignment of the drill);
(e) Mr Dan Roulston provided a 3 km water line and regularly refuelled the pump to supply water for drilling and periodically checked on what was happening at the site;
(f) there was no work for the vacuum truck so Mr Bruce Austin helped with the mud mixing and site clean-up.
48. By the end of Thursday 30 July 2009 the pilot hole beneath the creek had been completed.
31 JULY 2009
49. On Friday morning, the ADDS employees, on the eastern side of Bohena Creek, attached a reamer to the drill string (also known as drill rods) using an adaptor. A swivel, shackles and a pipecap was attached the pipeline. ADDS then began reaming the hole and simultaneously pulling in the pipeline.
50. Sometime between 12:00pm and 3.00pm Mr Robert Milne, who was on the western side of the creek and who was pulling out the drill rods with the reamer and pipe attached, noticed the pipeline had become stuck and was no longer being pulled through the borehole.
51. After Mr Robert Milne recovered the remaining drill rods from the borehole, which measured around 120 metres, it was discovered that the reamer was no longer attached to them. He observed that the thread adaptor from the drill rods to the reamer had failed. It appeared that the reamer was still attached to the pipe under the ground.
RETRIEVAL PROCEDURES
52. The ADDS personnel together with Mr Roulston and Mr Bruce Austin participated in a meeting on 31 July 2009. They discussed the problem and possible solutions, including leaving the pipeline and reamer in the ground and starting again and attempting to retrieve it.
53. ADDS decided, following that discussion, and with the agreement of those in that meeting, to try and pull the pipeline out from under the ground (the First Retrieval Procedure). By doing this the reamer may have been retrieved. The reamer was owned by ADDS.
54. Initially the First Retrieval Procedure was performed by attaching a sling to the end of the pipeline, then attaching that sling to the backhoe (which was owned by GD Pipelines) with a chain. Mr Roulston drove the backhoe and reversed in an attempt to pull the pipeline out Later the sling, with the pipeline attached, was attached to a WesTrac Caterpillar 320C hydraulic excavator which was driven in reverse by Mr Austerberry.
55. In an interview conducted by Inspector Paul Raftery on 14 October 2009 Mr Ken Anderson stated that he spoke to Mr Austin during the First Retrieval Procedure and told Mr Austin to stand with him, some 10-15 metres away from the entrance of the drill hole, saying to Mr Austin that if the pipe broke while it was being pulled it could fling out of the hole and anything could happen. Mr Roulston said that when the First Retrieval Procedure was undertaken he was standing in the bush at what he thought was considered a safe distance.
56. This First Retrieval Procedure was attempted about 6 times on 31 July 2009. On each attempt the pipe collapsed where it had been tied causing the sling to come off. Each time it failed gently, with no recoil. Ultimately the outer sheath of the sling failed. The First Retrieval Procedure was then abandoned.
57. The work team at the Work Site then met again and discussed what further steps might be taken. A decision was taken that an attempt ought be made to try and excavate the pipe and reamer from the creek (the Attempted Excavation).
58. Mr Austerberry then drove the WesTrac Caterpillar 320C hydraulic excavator (excavator) to the middle of the creek, to a position where, based on the number of drill rods that had been recovered, the ADDS crew suspected the reamer and front end of the pipe were located, and began to dig, with the objective being to dig up the reamer and disconnect it from the pipeline, which would make pulling the pipeline back out easier. While Mr Austerberry was undertaking the Attempted Excavation, sand and water flowed back into the hole making the process difficult. Some drilling mud was found, but not the pipeline. As it was getting dark it was decided to back-fill the hole and try again on the next day, Saturday. The work crew, including Mr Austin, left the site at around 4.30pm - 5.30pm.
1 AUGUST 2009
59. On the morning of Saturday 1 August 2009 Messrs Ken and Michael Anderson left Narrabri to return home.
60. Messrs Austerberry, Milne, Roulston and Austin returned to the Work Site to attempt to recover the pipeline and reamer.
61. A small pipe of about 110mm diameter was placed inside the 200mm pipeline already under the creek using a sling and a backhoe. The small pipe had a beacon inside it, so its position could be detected from the creek surface. Once the beacon had been pushed to what was believed to be the end of the pipeline digging in the creek began, with Mr Austerberry and later Mr Bruce Austin, operating the excavator.
62. The attempt to dig up the reamer was unsuccessful and at around 1.30pm - 2.30pm on 1 August 2009, attempts to dig up the reamer and pipeline were abandoned.
63. Mr Austerberry then decided they should have a further attempt at pulling the pipeline out from under the ground (the Activity).
64. Mr Austin drove the excavator over to the eastern side of the creek so the Activity could begin. Meanwhile Mr Roulston commenced back filling the hole in the creek using GD Pipeline's backhoe.
65. Before the Activity commenced on Saturday 1 August 2009 a toolbox talk was held during which Mr Austerberry said "everybody's got to keep out the bloody road." There are no documents recording this tool box talk.
66. ADDS did not have any documented safe work procedure method, job safety analysis or risk assessment for the Activity.
67. One side of the orange bunting, being that across the front of the entry pit from which the pipeline protruded, was pulled down before the Activity commenced so that the bunting did not get in the way.
68. Using a 10 millimetre, two legged chain that was on-site to be used to lift the drill rods onto the truck used to transport them, Mr Robert Milne tied one leg of the chain in a clove hitch knot around the pipe and placed the other leg of the chains around a bucket tooth on the excavator and choke hitched it back over the chain.
69. The chain was a lifting chain and should not have been used to pull the pipeline. The chain had a breaking strength less than the pulling power of the excavator.
70. Mr Bruce Austin then started operating the excavator for the retrieval process, approximately 2 - 4 metres from the end of the pit. He moved the arm and bucket of the excavator, the pipe may have moved a little bit and then the chain broke. The other leg of the chain was then attached as before by Mr Milne. The pipe was again pulled. It moved about a metre before shearing off the pipe. The chain was reattached one or more times but sheared off the pipe each time.
71. Mr Austin then suggested placing a piece of wood inside the pipe to prevent the pipe crushing and shearing. This was done by Mr Milne, using a chainsaw to cut a suitably sized piece of wood and then placing the wood inside the pipe to stop the pipe collapsing while it was being pulled. This was not a procedure that ADDS had ever used before. It was successful in stopping the pipe shearing and the pipe started to move as Mr Austin drove the excavator backwards.
72. After about 35 metres of pipe had been extracted, Mr Milne suggested Mr Austerberry take over driving the excavator as Mr Austin was having difficulty going in a straight line whilst reversing.
73. When Mr Austerberry then took over the excavator, he told Mr Austin to go and sit on a log about 17m from the pipeline. He pointed to a tree stump or log behind the tree line, where they had been sitting earlier in the day. He said to him, words to the effect "Keep out of the road and go and sit down there" " and continued pointing to the tree stump or log.
74. Mr Austerberry and Mr Milne both observed Mr Austin heading in the direction of the log or tree stump, but neither observed him reach the designated point. No one watched him to ensure that he stayed at the designated point.
75. Mr Austerberry reversed the excavator whilst being directed by Mr Milne. Mr Milne was watching the movement of the excavator and did not turn around to look at the progress of the pipe out of the pit or to observe what Mr Austin was doing.
76. Initially Mr Austerberry looked straight down at the pipeline. He then, turned around (away from the pit) to see where he was going.
77. At a distance of about 145 metres from the entry pit, at approximately 3.45pm, the chain broke (for the second time that day) and the pipeline recoiled.
78. Mr Austerberry and Mr Milne retrieved the broken chain set and walked back towards the entry pit, with the intention of cutting the pipe and re-pulling whatever remained. They looked over to the tree stump or log to see what Mr Austin was doing but he was not there.
79. They called to Mr Austin and received no reply. A short time later Mr Milne found Mr Austin lying on the ground adjacent to the entry pit and inside the orange bunting around the pit, with his head facing a southerly direction, right up against the barricade.
80. Mr Austerberry gave Mr Austin first aid. Mr Milne called for an ambulance.
81. The ambulance officers treated Mr Austin at the site before transporting him to the highway, arriving about 5.20pm. He was then transferred to a helicopter ambulance, but due to difficulty stabilising Mr Austin the helicopter did not leave the scene until 6.35pm. It proceeded to Tamworth Hospital, arriving at approximately 7.15pm. He was subsequently transferred to John Hunter Hospital in Newcastle, arriving there at around 4.50am. On 4 August 2009 it was found that there was negligible neurological recovery and after the ventilator was removed, he died from his injuries around 5.30pm.
82. The autopsy found that the direct cause of death was a closed head injury. Mr Austin had suffered a cerebral haemorrhage, haemorrhage around the upper spinal cord, a broken jaw, an injury and laceration involving the left earlobe and a bruised scalp.
83. Video and photos of the scene taken after the accident show that the pipeline had come to rest in a wide arc over seven metres away from the pit. There was a spot on the bowed pipeline which has been wiped clean of some mud. This part of the pipe was tested and Mr Austin's DNA was found.
84. Mr Austin's death was caused by him being hit in the head by the pipeline as it recoiled following the failure of the chain being used to pull it from the ground.
RISK ASSESSMENTS
85. In relation to the retrieval procedures of the kind undertaken on this occasion:
(a) Mr Austerberry had performed the procedure over a dozen times in his career without incident or injury;
(b) Mr Robert Milne had been involved in the procedure on a number of occasions;
(c) Mr Michael Anderson had seen the procedure performed once in Darwin.
86. ADDS, Mr Roulston and Mr Bruce Austin participated in the discussions/ tool box talks in relation to the First Retrieval Procedure, the Attempted Excavation and the Activity in which the procedure, and the requirement to stay well away was specifically discussed. There are no written records of these discussions/ tool box talks.
87. None one from ADDS, Mr Roulston nor Mr Austin informed ESG about the retrieval procedures including the Activity prior to that conduct taking place.
CONTRAVENTION OF OHS ACT
88. ADDS, by its acts and omissions set out below, failed to ensure that people, other than employees of ADDS, in particular Mr Bruce Austin, were not exposed to risks to their health or safety arising from the conduct of ADDS's undertaking while they were at ADDS's place of work, specifically to the risk of being struck by a recoiling polyethylene pipeline.
Particular 2 - ADDS should not have attempted to pull the pipeline out of the ground
89. ADDS undertook the Activity when the pipeline became stuck, instead of leaving that pipeline underground, drilling a new hole and installing another line of pipe.
90. It is not uncommon for a pipeline to become stuck while being pulled into a drilled hole using HDD techniques, the causes of which are many and various. The cause of the pipeline at the Work Site becoming stuck has not been determined, but the primary theory is that the ground conditions changed causing what is known as a 'hydraulic lock'.
91. When a polyethylene pipeline of 200mm diameter is pulled in circumstances where one end is underground and becomes stuck, for instance due to hydraulic lock, then, as the pipeline is pulled it stretches and energy builds in the pipeline, such that if the end being pulled is released the pipeline will recoil along its length and as it recoils it will move. This phenomenon was known to both Mr Austerberry and Mr Milne of ADDS as at 1 August 2009.
92. A polyethylene pipeline of 200mm diameter is a hard and heavy object, in the manner of a solid plastic. During recoil, because of its weight and momentum, there is a risk of injury to any person struck by the pipeline.
93. Prior to the accident occurring, as noted above, attempts to pull the pipeline out of the ground had resulted in the pipeline collapsing, the outer sheath of a sling failing and the chain being used to the pull the pipeline breaking. In the circumstances it was readily foreseeable to ADDS employees, including Mr Austerberry, that the chain might break again. If it broke it was readily foreseeable that the pipe would recoil, creating a risk of injury to any person who might be struck by the recoiling pipe.
94. ADDS acknowledges that, in the circumstances that prevailed, when the pipeline became stuck it ought not have attempted the Activity. It ought to have decided to abandon the pipeline underground, drill a new hole and install another line of pipe.
Particular 3 - ADDS failed to conduct and record a Risk Assessment
95. According to Mr Ken Anderson upon arrival at the Bohena Creek Site, ADDS did a job safety analysis . However, there are no accounts or documentary records of a job safety analysis or risk assessment being performed in relation to the Bohena Creek Project or the Activity.
96. ADDS conducted several discussions/toolbox talks when the pipeline became stuck, however there are no documentary records of these meetings.
97. The discussions/toolbox talks involved discussions of possible solutions to deal with the pipeline which had become stuck. This included leaving the pipeline and reamer in the ground and starting again as well as the retrieval procedures and the attempted excavation. The talks also included words to the effect "keep out of the bloody road".
98. However, ADDS failed to take any adequate steps to identify the risks associated with the Activity before it proceeded and in particular ADDS:
(a) failed, before conducting the Activity, to conduct an adequate risk assessment; and
(b) failed, before conducting the Activity, to record a risk assessment of the Activity.
Particular 4 - ADDS failed to determine and communicate a Safe Work Method
99. ADDS convened and participated in the discussions/ tool box talks. However, ADDS did not devise a documented safe work method for the Activity.
100. At the time of the accident ADDS had approximately 42 documented Safe Work Method Procedures (SWP), but none covered the Activity.
101. ADDS had a documented "Company Health & Safety Plan" (Safety Plan). Amongst other things, it required new employees and contractors to complete an ADDS induction programme.
102. In relation to an induction/training for Mr Bruce Austin for work at the Work Site:
(a) ADDS did not conduct an induction, and had never inducted Mr Bruce Austin for work with ADDS, however ADDS had contracted directly with TSG on at least seven prior occasions and Mr Austerberry had worked with Mr Bruce Austin on approximately 25 prior occasions (which included the 7 occasions where there was a direct contract between TSG and ADDS);
(b) there is no evidence of any induction by TSG;
(c) there is no evidence of any induction by AST;
103. Mr Ralston (GD Pipelines) arranged for Mr Bruce Austin to undertake an induction on 31 July 2009 with ESG's safety officer, Tom Bennett at ESG's Narrabri office.
104. ADDS Safety Plan required pre-operational toolbox meetings, to conduct on-site hazard assessments and the implementation of hazard controls and complete hazard assessment and control forms. There are no documentary records in relation to these matters.
105. In the circumstances, directions to "stay out of the bloody road" did not constitute an adequate safe work method for the Activity.
106. ADDS failed to take any or any adequate steps to determine a safe work method for the Activity and communicate that method to Mr Bruce Austin at the Work Site before it proceeded with the Activity, in particular ADDS:
(a) failed to devise a safe work method for the Activity;
(b) failed to document a safe work method for the Activity;
(c) failed to give any or any adequate information or instruction to Mr Bruce Austin at the Work Site as to a safe work method to conduct the Activity.
Particular 5 - ADDS failed to establish and supervise an Exclusion Area
107. ADDS failed to ensure that Mr Bruce Austin would not be in a position where he could be struck by the polyethylene pipeline recoiling, when undertaking the Activity, ADDS:
(a) failed to establish an exclusion zone, being an area where no person was to enter lest they be struck by the pipeline recoiling (the exclusion area);
(b) failed to give any adequate information to Mr Bruce Austin as to the danger of standing within the exclusion area;
(c) failed to give any adequate instructions to Mr Bruce Austin requiring him to remain outside the exclusion area;
(d) failed to erect a barrier, such as fencing or bunting, to mark out the boundary of the exclusion area;
(e) failed to supervise Mr Bruce Austin to ensure he did not enter the exclusion area; and
(f) failed to check that Mr Bruce Austin was outside the exclusion area before engaging in the Activity.
108. The risk to Mr Bruce Austin arose because he was standing in an area where he could be struck by the pipeline if it recoiled.
109. ADDS could have taken steps to reduce or remove that risk by taking the steps set out at paragraph 105.
Particular 6 - ADDS Failed to Cease the Activity after the first attempt failed
110. ADDS failed to cease the Activity, or assess the safety of the Activity, once a chain being used to pull the pipeline broke for the first time on 1 August 2009.
111. Once the chain broke for the first time it was foreseeable that it could break again at a time when more pipe was exposed when there would be a corresponding increased risk of recoil.
112. ADDS could have taken steps to reduce or remove that risk of injury to Mr Bruce Austin by stopping the Activity after the chain first broke.
Particular 7 - ADDS failed to take steps to prevent the pipeline recoiling
113. ADDS failed to take steps, which would have reduced or removed the risk of injury to Mr Bruce Austin by preventing the pipeline recoiling, including:
(a) undertaken an analysis of the pulling-power of the excavator being used to pull the pipeline and the break-strength of the pipeline and of the chain connecting the pipeline to the excavator to identify the risk that the pipeline or the chain might fail;
(b) utilising equipment to pull the pipeline out from the ground that had less pulling power than the break-point of the pipeline and of whatever was used to connect the pipeline to that machine;
(c) utilising equipment appropriate for the task, in particular slings rather than chains and a pulling head or pipecap attached to the end of the pipeline;
(d) pulling the pipeline out in short sections and then cutting it, or by pulling a section and then re-positioning the sling to a position close to the exit pit.
114. If the pulling power of the machine being used to pull the pipeline from the ground had been less than the break-point of the pipeline and of whatever was used to connect the pipeline to that machine then the risk of the pipe or the connection failing and the pipe recoiling would have been reduced or removed.
115. If equipment appropriate to the task, in particular slings and a pulling head or pipecap, had been used the risk of the connection failing would have been reduced.
116. If the pipeline had been pulled out in short sections, by pulling a section and then cutting it, or by pulling a section and then re-positioning the sling to a position close to the exit pit, then the amount of pipeline exposed above ground under pressure would have been reduced, and accordingly the amount of recoil if the pipeline or connection failed would have been reduced.
18Mr Taylor also tendered what was described as the Prosecutor's Tender Bundle. It contained the following documents:
- 2 videos: Schematic video of horizontal directional drilling together with NSW Police video of Petroleum Assessment Lease 2 ("PAL 2") incident scene which were played during the proceedings.
- 20 colour photographs taken by Inspector Steve Millington, Dan Roulston and Mr Tom Bennett showing the site, the pipe, the reamer, the pit area, the log and surrounding bush.
- PAL 2 Plan and Locality Plan of the incident.
- Amended survey plans Bibblewindi West Lateral Pilot Project ("PWL") Petroleum Exploration Licence 238 ("PEL 238"), Bohena Creek pipeline crossing.
- Austerberry Directional Drilling Services Quotation for Directional Drilling dated 20 July 2009.
- Eastern Star Gas Eastern Energy Australia Purchase Order dated 21 July 2009.
- Email from Eastern Star Gas to Austerberry Directional Drilling Services attaching Purchase Order dated 22 July 2009.
- Email from Eastern Star Gas to G D Pipelines dated 21 July 2009.