Prosecutor's evidence
11Mr PJ Gow of counsel, who appeared for the prosecutor, tendered an agreed bundle of documents on sentence, which included an ASF which provided:
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2.At all material times ZEINA KHOUZAME ("the defendant") of 200 Edgar Street, Condell Park, in the state of New South Wales traded as FAY PROPERTY MAINTENANCE ("Fay Property").
3.The defendant, under the auspices of Fay Property ran a business performing gardening, lawn mowing, trimming, rubbish removal, tree lopping and clearing.
4.At all material times the defendant employed persons to perform work.
5.The defendant managed Fay Property, visited work sites and was aware of the usual method of work on sites.
6.At all material times the Defendant employed Joseph Khouzame and would from time to time receive assistance from family members, Haussam Khouzame, Fayrouz Khouzame and James Khouzame.
7.The defendant operated as Fay Property from 21 January 2008 and was the holder of that trading name. The trading name was previously held by Fayrouz Khouzame, the mother of Zeina Khouzame.
8.In return for their services, Joseph Khouzame as well Haussam, Fayrouz and James Khouzame were provided with payments in the form of paying for their various expenses such as mortgage payments, utility bills, school fees and general shopping.
9.The incident occurred at 46 Wendy Avenue, Georges Hall ("the property") which was a vacant block of land on the corner of Wendy Avenue and Christopher Avenue in a built up residential area. Fay Property had been engaged by the land owner, Mohamad (Michael) Darwich to remove a number of trees at the site in preparation for building.
10.The Defendant was paid $3,000.00 for the work including the removal of trees and taking the tree waste from the site.
11.On 2 November 2009 Joseph Khouzame, Haussam Khouzame, James Khouzame and Fayrouz Khouzame, were removing trees at the property.
12.The Defendant's workers had been working at the property for up to one week prior to the incident.
13.Throughout the relevant time there was no person on the property who held any formal qualification for tree work.
Details of Incident
14.On the day of incident, the Defendant, Joseph Khouzame (then aged 16 years), Haussam Khouzame and Fayrouz Khouzame felled several trees and then cut up the tree parts while they were on the ground. The cuttings were then taken away in a trailer.
15.The trees at the property prior to the incident were felled at their bases.
16.The employees and those assisting were wearing fluorescent shirts, safety boots, gloves, safety hats, ear muffs and safety goggles.
17.At approximately 1:20pm, Joseph Khouzame who was operating a chainsaw, cut down a large tree (about 20m high) at its base, which then fell onto power lines on Christopher Avenue (being an adjoining street), bringing down those power lines and a number of power poles. On top of the power poles was a pole top transformer that was irreparably damaged when it fell, as a result of the incident, spilling approximately 400 litres of oil, some of which spilled into the gutter.
18.The tree had been about two metres from an adjoining fence that separated the neighbouring property upon which a house was built. Joseph Khouzame cut the tree approximately one metre from its base (the stump being about 600mm in diameter) using two cuts similar to a recognised "scarf and back cut", a method of tree felling. The scarf is most commonly a wedge shape cut in the trunk of the tree that designates the direction of fall. The back cut should be on the opposite side of the scarf. A small section of wood known as hinge wood is left between the scarf and back cut, which allows the tree to fall in a controlled manner.
19.While the cut made was similar to a scarf and back cut, it was fundamentally flawed as the back cut was made a forty five degree angle and there was also no holding wood.
20.Shortly before the incident, Zeina and Fayouz Khouzame left the property to have one of the chainsaws re-sharpened and get some food to have a break during which time, neither Haussam nor Joseph Khouzame were being supervised. Prior to departing, the Defendant told Joseph not to take any risks and to wait until she got back to remove the third tree.
21.CCTV footage obtained by WorkCover Authority investigators captured the subject tree falling to the road surface. It shows a utility motor vehicle parked in the intersection of Wendy and Christopher Avenues which had been stopped there for at least 15 minutes before the tree fell. A witness to the incident saw a rope attached to the back of the utility leading up to the subject tree and saw a person on the corner of Wendy Avenue and Christopher Avenue wave to the driver of the utility to start driving. The witness saw the rope snap as the utility drove forward.
22.The CCTV footage shows utility being driven away as the tree fell onto the power lines and also shows at least two vehicles drove through the intersection and around the stationary utility in the minutes before the tree fell. The footage also shows that a person jogged past the intersection minutes before the tree fell and a worker standing in the approximate position where the tree ultimately fell some 30 or so seconds before the fall. It was evident that there was inadequate traffic control in place before the tree fell.
23.The power lines that were brought down consisted of both 11,000 volt (high voltage power lines) and 415 volt (low voltage power lines). Sparks were emitted from the fallen lines as they came to the ground which indicates that they were energised at the time. In the process of the 11,000 volt lines falling, there was a risk that they could contact the low voltage lines suspended by the same power poles. Such contact can allow for high voltage electricity to pass to the low voltage circuit, thereby entering houses and potentially causing an electric shock or electrocution to persons using electrical appliances in their homes. Approximately 56 premises were impacted by the power outage due to the fallen lines.
24.At least one of the nearby homes was within the possible fall radius of the tree but most were within the safe zone for tree felling of two times the height of the tree required by the Amenity Tree Industry Code of Practice 1998.
25.Officers of the New South Wales Fire Brigade then attended the scene. Fire officers and officers of the New South Wales Police Force (who also attended the scene) saw that there was inadequate traffic control in place when they arrived. Those officers and local residents saw a Fay Property worker using a chainsaw to cut branches from the fallen tree after the power lines had been brought down and before the power had been confirmed as isolated by the electricity authority. The Defendant had not yet returned to the property. The workers were seen to be moving under, around and stepping over the fallen lines which were entangled in the branches of the tree.
26.While the power lines were on the ground, Ausgird personnel (formerly Energy Australia) indicated that there was a risk of electric shock or electrocution to anyone within the vicinity of the downed power lines, including Fay Property workers, emergency responders and members of the public. This risk emanated from contact with the conductor but also from a risk known as "step potential", in that a person could be close to, but not on top of, grounded high voltage overhead lines and still be electrocuted as the person has a potential voltage between the legs when he or she steps. Some of the Fay Property workers only moved away from the power lines at the direction of emergency service personnel.
27.The method used to fell the trees, the lack of traffic and pedestrian control and the potential for electric shock or electrocution from falling and fallen power lines, gave rise to a significant risk that this incident could have resulted in death or serious injury to workers and/or members of the public. Fortunately, no injuries were sustained.
28.This incident caused substantial damage to power infrastructure resulting in nearby homes being without power for a period of time. The cost of rectifying the damage has been estimated at $99,000.00 for electricity infrastructure and approximately $1,700.00 for damage to one resident's home.
Systems of Work Prior to the incident
29.Not all employees were wearing adequate personal protective equipment at the time of the incident. At different stages, some were wearing fluorescent shirts, safety boots, gloves, safety hats, ear muffs and safety goggles. Appropriate personal protective equipment for work being conducted would have included, at a minimum, helmets, facial shields, hearing protection, gloves, cut resistant pants and chaps for chainsaw operators.
30.Zeina Khouzame, Joseph Khouzame, Haussam Khouzame, James Khouzame and Fayrouz Khouzame did not have any formal qualifications to conduct the relevant tree work although Haussam Khouzame asserted that he had extensive experience as a tree removalist, dating back more than 20 years where he began assisting his father in removing trees in a village in Lebanon. Joseph Khouzame (then only 16 years of age) claimed he had experience conducting tree work for Fay Property and also with another family company which only performed limited tree work. Joseph Khouzame claimed that he was given instruction in amenity tree work by Haussam Khouzame.
31.There is no evidence that there were written work procedures for the type of work conducted by the Defendant's business.
32.Control measures identified in the risk assessment and safe work procedures were not implemented including the clearing of a safe zone, provision of adequate traffic management and felling a large tree at the base.
33.A vehicle that was tied to a tree to pull the tree in a desired direction. This is an unsafe practice. In any event, the Amenity Tree Industry Code of Practice 1998 requires a safe working zone to be set up and maintained when felling a tree. That zone should extend for at least twice the height of the tree and should identify an escape route for an area of 45 degrees behind the line of the fall of the tree. The power lines were in fact within the impact zone and no 45 degree escape route was identified.
34.Employees claim that the rope was tied to another tree, near the tree to stop it falling towards the power lines. There is no industry code that recommends the use of ropes in the way described by the defendant's employees.
35.Both the Amenity Tree Industry Code of Practice 1998 and Work Near Overhead Power Lines Code of Practice 2006 stipulate that the minimum safe working distance for power lines, up to 132,000 volts is 3 metres and the latter code indicates that if any part of a branch is touching live power lines, the entire branch may be live including the leaves. However, after the tree was felled, a worker used a chainsaw to cut branches from the crown of the tree despite the risk that the live power lines on the road were live which were entangled in the branches of the felled tree.
Work systems after the incident
36.Following the incident the defendant developed safe work method statements and risk assessments. These documents were based on practical guidance given in the Amenity Tree Industry Code of Practice 1998.
37.The defendant stated that Fay Property Maintenance no longer conducted tree work on the scale seen at the property.
Prior convictions
The Defendant has no prior convictions under occupational health and safety legislation.
12The agreed tender bundle contained the following documents:
i.Business Name Extract of Fay Property Maintenance;
ii.Factual Inspection Report of Inspector C Jelley;
iii.Aerial Photo (Whereis.com) of the property;
iv.Aerial Photo (Google Maps Australia) of the property;
v.Photographs of site;
vi.Amenity Tree Industry Code of Practice 1998;
vii.Work Near Overhead Power Lines Code of Practice 2006;
viii.Risk Assessment;
ix.Safe Work Procedure;
x.Prior Conviction Record showing the defendant has no prior convictions.