1 This prosecution is brought by Inspector Seneviratne of the WorkCover Authority of NSW against Caltex Petroleum Distributors Pty Limited (the defendant) and issued under the Occupational Health and Safety Act 2000 (the Act).
2 It is alleged the defendant breached s8(1) of the Act in that it:
. . . . . DID FAIL , contrary to Section 8(1) of the 2000 Act to ensure the health, safety and welfare at work of all of the employees of the Defendant employer, and in particular, Lindsay Barry.
The particulars of the charge are the defendant:
. . . failed to provide and maintain a safe system of work in relation to the transfer of fuel from underground tanks into road tank trucks at the site such that employees were not exposed to the risk of fuel explosion during the transfer process, in particular by failing to ensure that:
(i) the transfer of fuel was done by bottom-loading.
(ii) the road tank trucks were properly purged of fuel prior to the transfer of fuel taking place.
(iii) the transfer of fuel complied with the Dangerous Goods (General) Regulations 1999 (NSW) in particular, clauses 196 and 136.
3 The defendant pleaded guilty to the charge.
4 An agreed statement of facts was tendered which relevantly reads as follows:
3. At all material times, Qantas Airways Limited ("Qantas") leased the site from the Federal Airports Corporation. By declarations made pursuant to Airports (Transitional) Act 1996 (Cth), the SACL became the successor to the Federal Airports Corporation. The Lease commenced on 1 July 1992 for five years until 30 June 1997 when it continued on a monthly basis ("the Lease"). Qantas used the site for refuelling its mobile ground plant as well as for the storage and use of jet fuel, lead replacement petrol (LRP) and diesel fuel.
4. At all material times, SACL retained control over the site. In particular, SACL could issue rules to Qantas relating to the operation, safety, use and occupation of the Airport, including the site, as well as enter the site to maintain or repair the site, or to exercise the powers and authorities of the SACL under the Federal Airports Corporation Act 1986.
5. At all material times, Qantas was in control of the site and regularly removed fuel from the site.
6. At all material times, Qantas was an employer in the State of New South Wales and employed people to work at the site.
7. On or about 2 August 2002, Qantas contracted with Caltex Petroleum Distributors Pty Ltd (CPD), trading as Metropolitan Fuel Distributors to remove approximately 110,000 litres of LRP and 40,000 litres of diesel ("the fuel") from underground tanks at the site, and to transfer the fuel to a site owned by Caltex Australia Pty Ltd in Banksmeadow.
8. CPD were at all material times an employer in the State of New South Wales whose undertaking was to remove the fuel from the underground tanks at the site, being CPD's place of work at the time the fuel was being removed.
9. CPD in turn contracted with Kel Campbell Pty Limited ("Kel") for the provision of tankers and drivers required for the removal of the fuel. A standing contract existed between CPD and Kel dated 2 January 2002 ("the Contract") which provided that CPD could at any time issue a delivery advice to Kel for the collection and delivery of fuel product. As part of that contract, Kel agreed to ensure that deliveries were carried out in accordance with Australian Standard 1940 "Storage and Handling of Flammable and Combustible Liquids" and the "Ampol Driver Instruction Manual", as well as the AIP-CP8-1991 "Precautions Against Electrostatic Ignition During Tank Vehicle Loading", the Australian code for the transport of dangerous goods by road and rail (ADG Code) and the AIP-CP14-1995 "The Transport of Petroleum Products by Road".
10. On or about 31 May 2002, Greg Clay ("Clay"), an employee of CPD, attended the site for a visual assessment of access for vehicles and equipment required to do the job.
11. On or about 14 June 2002, Clay submitted a quote to Qantas for the transfer of approximately 110,000 litres of petrol and 40,000 litres of diesel from the underground tanks and the site to the Caltex terminal. The quote stated that CPD would provide dangerous goods approved road tankers, dangerous goods licensed road tanker drivers and dangerous goods approved personnel to operate equipment and facilitate safe transfer procedures.
12. On 2 August 2002, Adam Machon ("Machon"), employed by Qantas as a Senior Fuel Technical Officer, sent a fax to Clay accepting the quote and confirming the transfer date of 11 August 2002 and nominated John Calfas, an employee of Qantas, as the Qantas representative who would be at the site while the transfer process occurred.
13. Between 2 August and 11 August 2002, Machon had four telephone conversations with Clay regarding site access, timing of work and an overview of Qantas requirements for the fuel transfer. At all material times, Qantas did not have a written procedure for fuel removal from underground tanks at the site. Machon did not request to see any procedures developed by CPD regarding fuel removal it intended to take place on 11 August 2002.
14. On 5 August 2002, Steve Fox ("Fox"), an Operations Manager employed by CPD, faxed a copy of Machon's fax dated 2 August 2002 to Bevan Burns ("Burns"). Burns, employed by Kel, made verbal arrangements with Clay in accordance with the Contract to provide tanker vehicles for the fuel transfer. Burns stated that two tanker vehicles would be provided.
15. On 11 August 2002 ("the incident date"), the following people were present at the site being:
a) John Calfas ("Calfas"), employee of Qantas;
b) Greg Clay ("Clay"), employee of CPD;
c) Bevan Burns ("Burns"), employee of Kel;
d) Sean Riordan ("Riordan"), employee of Kel;
e) Sean Gosper ("Gosper"), employee of CPD.
f) The injured person, Lindsay Barry ("Barry"), an employee of CPD.
16. On 11 August 2002, the work being undertaken by employees of Qantas, CPD and Kel at the site in transferring the fuel was the undertaking of each company and the site was the place of work of each company. There was no nominated supervisor for the transfer of fuel process.
17. At the time of the incident, SACL had in place a procedure where any work at the site such as the transfer of fuel, should have been subject to their supervision and approval and documented in an Approved Works Plan. SACL failed to ensure this had occurred prior to the incident. CPD was not aware of SACL's procedure.
18. On 11 August 2002, between 5.00 am and 6.00 am, Barry arrived at the site and met Gosper and Clay. At approximately 5.30 am, Riordan arrived, driving tanker vehicle TVK-400, with tanker barrel N16327 attached to it, and was later joined by Burns.
19. Barry, Clay, Gosper, Burns and Riordan met Calfas outside Gate 27 of the airport at around 6.00 am.
20. At around 7.00 am, Barry and his colleagues began transferring LRP from the first underground tank at the site to tanker vehicle VBB-276. Gosper installed the connections from the underground tank opening to the tanker, bottom filling the tanker by pumping through the CPD rigid truck, UVE-487. Discussion between Burns, Clay and Barry took place regarding the slow flow rate of the fuel pumping into the tanker. The second tanker, TVK-400, was positioned for pumping LRP into the first tanker. Following further discussions, it was decided to bring two other tanker vehicles in order to assist with the expedition of the fuel transfer process.
21. Gosper, Burns and Riordan returned to the site at around 8.30 am with two road tanker vehicles. At around 9.00 am, the loading of petrol on the first tanker was completed and a new tanker was moved into its place to continue the transfer of petrol. Once the first underground petrol tank was empty, Gosper reconnected the new tanker to the second underground petrol tank and continued loading petrol.
22. At this time a decision was made by Burns to pump diesel from the underground diesel tank into another tanker being tanker TVK-400, using the CPD rigid, for pumping but to fill the tanker from the top and not the bottom. This decision was made as the pumping process was perceived to be too slow.
23. The CPD rigid was moved to the site alongside the tanker TVK-400. Another tanker being loaded with petrol at the time was approximately ten (10) metres away from tanker TVK-400. Gosper made the connections for diesel loading.
24. At around 11.00 am, Barry looked at the site glass on the side of tanker TVK-400 to check if compartments numbered 4 and 5 were empty. Barry then began top loading fuel from the underground tank containing diesel fuel to the tanker barrel attached to tanker TVK-400. He used the hose reel from the CPD rigid to transfer diesel through the open hatch on top of compartment five (5) in the barrel.
25. Barry climbed the tanker barrel while holding a hose, inserted the hose into the open hatch of number five (5) compartment and began filling it with diesel. Barry completed filling number five (5) compartment with diesel. He then inserted the hose reel into the open hatch of number four (4) compartment with a hose. Number four (4) compartment had contained petrol the previous day.
26. At approximately 11.28 am, while Barry was on top of the tanker barrel checking the progress of the pumping in number four (4) compartment, an explosion occurred and a flame came out of number four (4) compartment of the tanker barrel causing burn injuries to Barry.
27. At the time of the incident, Barry was wearing a nylon safety vest and had on his person a mobile phone.
28. It was found by the attending NSW Fire Brigade that one of the bonding straps between the tanker and the pumper truck in question, could have been pulled out of the clamp.
29. Barry was taken to hospital and later the Concord Hospital Burns Unit and treated for burns to his face and chest. Barry was off work for a number of weeks as a result of his injury.
30. At the time of the accident, CPD had a document entitled "Caltex Australia - Driver's Handbook" ("the Handbook"). The Handbook stated that:
"Section Six - LOADING
PROTECTIVE CLOTHING: The minimum requirement is long sleeved shirts, long trousers, nitrile or chemically resistant gloves, safety footwear and safety glasses. Long sleeved, long legged cotton coveralls may be authorised to be used as a suitable substitute garment, however, care must be taken to ensure they are removed in a safe zone after the loading operation is complete.
…
MIXED LOADS/SWITCH LOADING: When switch loading is carried out, i.e. loading a high flashpoint product such as kerosene or distillate into a compartment that previously carried a low flashpoint product such as petrol, it is important to ensure the low flashpoint product is completely drained from the compartment to be re-loaded
It does not take a great deal of petrol residue in that compartment to contaminate the high flashpoint product carried next.
…
When switch loading, initial flow rates must be kept to a maximum of 1 metre per second, until the fill spear outlet or tank inlet is fully submerged. Excessive initial flow rates can cause turbulence in the incoming liquid and generate large charges of static electricity. These charges could be released as a spark with sufficient energy to ignite the vapour/air mixture inside the compartment if an object was introduced into the tank compartment or a fill spear was removed prior to the charges having enough time to dissipate.
Always wait TWO minutes before you dip the compartment or introduce any other object into the compartment that you have just finished loading. If in doubt about switch loading procedure or compartment draining, consult your Supervisor prior to loading.
…
You must also make sure any residue from the previous load is completely removed so the compartment to be loaded is completely drain dry .
SPLASH LOADING: Never splash load a vehicle through incorrectly positioning the vehicle at the loading rack. Reposition the vehicle before you start to load if the fuel spear is too far from the compartment entrance to afford vertical entry. Splash loading is a dangerous practice and could cause a loading rack fire. When loading by spear, make sure the bottom of the spear reaches and maintains metal contact with the bottom of the compartment being loaded and is also in contact with the rim of the tank hatch. If pre-set meters are not fitted on the loading arms, under no circumstances must you attempt to load with more than one arm at a time.
Section Seven - DISCHARGING
…
CUSTOMER ACCESS TO TOP OF TANKER: Accessing the top of tankers to verify compartment dips is a hazardous practice and should not be necessary in most circumstances.
31 In addition, the Handbook detailed the risks of static electricity (section three). Barry was not familiar with the contents of the Handbook.
32 The Dangerous Goods (General) Regulation 1999 applicable at the time of the accident provides in Clause 196 that for the filling and emptying of tanks on vehicles the following:
(1) In this clause , "fill" and "empty" mean, in relation to a tank, to place any quantity of dangerous goods into or to remove any quantity of dangerous goods from the tank, respectively.
(2) A person must not fill a tank of, in or on a vehicle with dangerous goods of Class 3 or subsidiary risk 3 or empty
any such goods from such a tank unless the requirements of this clause , the ADG Code and AS 2809 are observed.
(3) Clamps used to effect earthing or electrical bonding must be applied as far as possible from sources of flammable vapour.
(4) Except in or on approved premises, the filling must be done:
(a) otherwise than through open hatches, and
(b) by means of a liquid-tight connection between the fill pipe and the tank.
(5) Subclause (2), in so far as it requires compliance with subclause (3), the ADG Code and AS 2809 , applies to and in respect of the filling of a tank with a combustible liquid if the tank has contained a flammable liquid and has not been examined by a competent person and found by him or her to be gas-free since flammable liquid was last present in it.
33 The Dangerous Goods (General) Regulation 1999 applicable at the time of the accident provides in Clause 136 (2) that:
(2) For the purposes of section 9 (1) (c) of the Act, the prescribed manner and conditions of the keeping of the dangerous goods referred to in subclause (1) in the quantities prescribed by that subclause are that:
(a) they are kept and handled in accordance with AS 1940 (The storage and handling of flammable and combustible liquids) , and
(b) the provisions of Part 3 and clause 139 are observed in relation to them.
34 The Australian Standard 1940 referred to in Clause 136 (2) provides at Clause 8.3.2 that if Open-hatch filling is to be utilised it shall comply with:
a) The flammable liquid transfer shall be through rigid piping extending to and in contact with the bottom of the vehicle tank department during the entire transfer operation. A hose shall not be used inside a vehicle compartment.
35 In addition, clause 8.2.7 provides as follows:-
Flow rates - means shall be provided or procedures established to control the flow velocity into the compartment of a tank vehicle to less than 1 metre per second until a minimum level of 150mm has been reached. Maximum flow velocity thereafter shall not exceed 7 metres per second until filling is nearly completed, when the flow velocity shall again be reduced to minimise hydraulic shock when filling stops.
36 Clause 8.2.9 of the Australian Standard 1940 provides as follows:-
Earthing and bonding. Means shall be provided to dissipate static electricity during filling operations in accordance with AS1020.
37 Clause 8.2.10 of the Australian Standard 1940 provides as follows:-
Bond wire connection. The bond between the vehicle tank being filled and the filling facility shall be made by means of a flexible sheathed welding cable having a cross-sectional area of not less than 10mm squared (322 divided by .2) where equivalent, securely attached to the filling facility at one end and provided with a robust spring clip G clamp, plug and socket or equivalent specially designed for the purpose at the other end.
Note:-
1. The size of the flexible sheathed welding cable above is unrelated to its resistance but is necessary to provide a robust flexible connection suitable for field use.
2. A flexible cable used to prevent over filling of the tank vehicle and containing a dedicated bond wire connected by a special plug and socket is an acceptable alternative.
3. The sheathing on a bond cable should be resistant to the product.
38 After the incident SACL, CPD, Kel and Qantas revised their system regarding the process to be undertaken for the removal of the remaining fill in the underground tanks at the site. Meetings between SACL, Qantas, and CPD determined that the process to pump out the remaining fuel at the site would be undertaken on 11 and 12 December 2002. Qantas and SACL required inductions for all contractors, the induction to be led by Qantas at the offices of SACL starting at 10.00am on the day of the job. SACL required a Works Plan Application to be submitted to them by 27 November 2002 for their approval from Qantas. SACL agreed for an exclusion zone to operate and agreed to close bays 36 and 37 for the duration of the work. A requirement that there would be only one tanker on site at any one time was also agreed. Qantas was to ensure that the work site was kept clean and stationary vehicles are cleaned prior to commencing pump out.
39 A new procedure for product removal from underground tanks was prepared by CPD and reviewed by Qantas and provided to SACL for their review, a copy of which is hereto attached and marked annexure "A".
40 On or about 9 December 2002 a completed "Approved Air Side Works Plan" issued by SACL set out the conditions for the removal of fuel from the site on Wednesday 11 December 2002 and Thursday 12 December 2002, a copy of which is hereto attached and marked annexure "B".
41 On 11 and 12 December 2002, the transfer of fuel process was undertaken by employees of CPD being Stephen Fox, Greg Clay, Shane Gosper. John Turnbull, an employee of Kel attended as well as another Kel employee, Mr G. Markham. In addition, representatives from Qantas supervised the process, being Hans Schurch and John Calfas. Representatives from SACL also supervised the process, being Owen Jarvis and Mark Farrar (SACL Aviation Safety and OHS Manager).
42 On 11 and 12 December 2002, all persons present during the transfer process were instructed to wear cotton drill shirts and pants, static free safety vests, eye wear, chemical resistant gloves, safety lace up steel cap boots and ear plugs. Mobile phones were not permitted to be used at the site.
43 On the occasion of removal of the remaining fuel, the discharge hose of the pump was connected to the bottom valve of the compartment on the road tanker to be filled, and no filling took place from the top of the tanker by way of an open hatch.
44 The Defendant investigated the causes of the accident, and in a report dated 14 August 2002 (Tab B of Exhibit "BD1" to the Affidavit of Barry Dunn) concluded:
The most likely cause of the explosion and fire was a static spark emanating from the charged fuel in the explosive atmosphere of the compartment to which the diesel was being pumped.
Compartment #4 had an explosive mixture due to the last load being unleaded petrol and the hatch was open to air. The filling of compartment #5 may have contributed to the static build up with the explosion occurring shortly after filling of compartment #4 commenced.
The exact point of sparking is impossible to determine however the injured driver stated that the explosion occurred after he touched the top of the barrel.
45 The Prosecutor obtained a report dated 26 July 2004 from Dr Denis Barrett, consultant engineer, who also concluded that the cause of the explosion was as a result of ignition of petrol vapour that was present in number four (4) compartment of the tanker in question. In his report, Dr Barrett concluded that " bottom loading was the preferred and much safer procedure on this occasion ".
46 The Prosecutor also obtained a report dated 24 September 2004 from David Pearson, Senior Fire and Explosions Specialist, Testsafe Australia. In that report, Mr Pearson concluded that the most likely ignition source would be from an electrostatic discharge as a result of fuel pumping operations, or from the injured persons body or clothing. Mr Barry's mobile phone could not be excluded as a potential source of ignition.
5 This breach of the Act occurred in the transfer of fuel from underground tanks into road tank trucks at an area known as the GSE Fuel Farm Facility near Bay 37 of the Sydney International Airport (the site). Employees were exposed to the risk of fuel explosion during the transfer process. That risk was made manifest by an explosion causing injury to Mr Barry, an employee of the defendant and, on the day concerned, a driver for the defendant. In particular, the defendant failed to ensure the transfer of fuel was conducted by the "bottom loading" method; the road tank trucks were properly purged of fuel prior to the transfer of fuel taking place; and the procedure followed for the transfer of diesel fuel complied with the Dangerous Goods (General) Regulations 1999 (NSW), in particular, clauses 196 and 136.
6 The application for order was first returnable before the Court on 13 October 2004. On that early date, the defendant advised the Court that it would be entering a plea of guilty to the charge.