Less than once every 1,
6 Existing Control and Mitigation Measures
6.1 Approach
Various control and mitigation measures were considered during each of the risk workshops and factored into the assessment of the risk levels.
These are noted in each of the risk registers and compiled into a single, comprehensive list in Section 9.1.
It should be noted that the approach adopted during the risk workshops was to consider all existing control and mitigations measures applicable to each specific risk event, even if these control measures were not specifically noted against that event in the Risk Register.
6.2 List of Control and Mitigation Measures
Existing controls and mitigation measures that were identified during the course of the workshops and factored into the assignment of the risk levels included:
OH&S Equipment
Personal protection equipment (PPE), including gas analysers and gas detection equipment (personal, portable, stationary, etc) Installed oxygen analysers fitted with alarm
Testing for gases on regular basis (i.e acetylene)
Additional protective equipment used in hazardous locations such as acid plant, smelting and refining
Provision of full time emergency services at Olympic Dam Enforcement of safe working practices
Provision of adequate safety measures for electrical equipment, working at height, confined spaces and other hazardous work conditions
Implementation of Fatal Risk Control protocols for light vehicles, surface mobile equipment, underground ground control, hazardous materials and molten material management
Operation Monitoring of radiation exposure Housekeeping activities
Enforcement of policies and procedures for management of hazardous materials including chemical, fuels, explosives, molten materials.
Effective contractor management Material safety data sheets (MSDS)
Pond management
Environment Protection Authority - trade waste processes Application of strict clearance procedures
Provision of adequate ventilation, dust extraction and standard dust control and operating procedures for enclosed spaces Implementation of appropriate stock management system, shed
Provision of pril, fogging, dust extraction systems Provision of dust suppression systems
Contractors required to remove all inert recyclable waste on site Provision of emergency response procedures, contentment
procedures
Provision of blast-proof, separation distance, barriers
Provision of safe working procedures, compliance with explosive legislation, geotechnical evaluation of tunnel condition pre and post blast
Provision of adequate traffic management and follow BHP Billiton procedures
Follow AQIS inspection procedures for barges and other ship vessels
Design and Community activities
Housing pods will be built sequentially allowing a learning process, knowledge of the existing market
Implementation of traffic control measures Recreational facilities
Design for storage capacity at the pump station. Provide telemetry system and alarm to warn a failure, standby pump
Design and construction of a full range of recreation activities
Implementation of security measures
Construction of bunded storage tanks, reservoirs and general storage facilities for hazardous liquids such as fuels, acids and reagents used in the metallurgical process
Appropriate design and construction of the new facilities Adequate geotechnical design and site survey before
commissioning of any activities
Application of conservative modelling strategies (especially for noise and dust)
Standard design, manufacture and installation practices using standard engineering solutions
Fitting of dust extractors in enclosed locations that generate dust Environment BHP Billiton policies for environment protection
Appropriate washdown procedures
Provide daily inspection and rescue operations of fauna in open trenches
Design to include recovery of spill
Provision of appropriate shoring /benching of trenches, ponds, etc, Compliance with relevant EPA requirements
Identification of items of significance, such as mound springs, Aboriginal settlement areas and other heritage included areas prior
to finalising design
Provision of fencing along above-ground installations such as compressor/pump stations, assembly yards, intermodals and other storage areas
Recycle materials, lubricants, where practicable
Undertake modelling, hydro-geology testing, depressurising bores Design of capping layer to minimise wind scour
Standards Compliance with the Australian Dangerous Goods (ADG) for transport of all hazardous goods
Compliance with all applicable Australian (and other) Standards Design of plant
and equipment
The use of HAZOP (and equivalent procedures) where relevant Design in accordance with standards
Provision of adequate guarding, anchor points Design for correct capacity
Design to include environment and climate considerations, including any specific state regulations (i.e. SA, NT, etc) Design for low velocity intake water pipeline
Engage a conservative nature of the modelling, safe working procedures
Provision of protection in the electrical supply system, cable bridges, standard operating procedures for areas around chemical storage facilities
Design of new plant assumed to be equivalent or better than the current operating plant
Design systems to minimise fugitive emissions and provide building ventilation to control accumulation of polonium in smelter Certification ISO 9001
ISO 14001 Other BHP
Billiton Policies
Employment policies (which will also be required to be adopted as a minimum by all contractors and sub-contractors)
6.3 Overview of BHP Billiton Procedures and Policies
The BHP Billiton procedures and policies that have been reviewed indicate that there is an ethos in place that is focused on managing the impacts from its operations on the
environment, the public and on the employees.
This opinion has been formed as a result of numerous meetings that have occurred in addition to the risk workshops. The discussions, responses and general approach provided by BHP Billiton staff have indicated an awareness of the various procedures and policies and a willingness to implement these as appropriate.
The procedures and policies are extensive. There is a wide range of very specific policies in place which appear to address most of the more common or expected situation that might be found at a mining or processing site and which are reinforced by the more wide ranging standards on risk management, including the health, safety and environment and
community standards.
Based on the assumption that these standards and policies are effectively implemented, there is a high degree of confidence that BHP Billiton is actively managing their risks and subsequent impacts on the environment and that the allowances made for the effectiveness of these policies and procedures in the risk assessment are realistic and valid.
Note that the approach taken by BHP Billiton with regard to the risk registers produced for this report has been to use them as a template and transfer relevant information to their ongoing project risk management.