Likelihood Consequence Moderate Significant Major Catastrophic Almost Certain 11 16 20 23 25 Likely 7 12 17 21 24 Possible 4 8 13 18 22 Unlikely 2 5 9 14 19 Rare 1 3 6 10 15 (Tick Low, Medium or High) 1 - 5 Low Risk 6 - 17 Medium Risk 18 - 25 High Risk Investigation Required: Low - Person involved in incident and supervisor complete investigation to end of shift. Medium - Person involved in incident, supervisor and line manager complete investigation within 7 days - SHE Dept. assistance if required. High - Person involved in incident, supervisor, line manager, SHE Dept and Department manager (or delegate) and other experts as required complete investigation within 7 days. LIKELIHOOD Almost Certain Event is expected to occur in most occasions. Frequency: Weekly Likely Event is expected to occur on many occasions. Frequency: Monthly Possible Event is expected to occur on some occasions. Frequency: Yearly Unlikely Event is expected to occur infrequently. Frequency: 5 Years Rare Event is not expected to occur, but may occur under exceptional circumstances. CONSEQUENCES Environment Community/Reputation Operational/Property Damage Catastrophic Severe health effects Death or severe impact of protected flora, fauna, wildlife, long term, prosecution/litigation Community complaint received with impact at state level, prosecution Cessation of operations by government or local community > 1 week Downtime of critical equipment > 1 Week Property Damage >$200’000 Record of health effects, impact on protected flora, fauna, wildlife, emissions exceeds legal standard, loss of containment off site. Containment loss > 200 Ltr Community complaint received with impact at State level Prosecution/Litigation Cessation of operations by government or local community < 1 week Downtime of critical equipment >1Shift<1week Property Damage >$50’000<$200’000 Significant Loss of containment of substance (remains on premises) >50ltr <200ltr Community complaint received with impact at local Council level Downtime of critical equipment > 4 hours < 12 hours Property Damage >$10’000 <$50’000 Moderate Loss of containment of substance, (remains on premises) >20ltr <50ltr Community complaint satisfactorily resolved between the community and site and has future impact Downtime of critical equipment >1 hour<4 hours Property Damage > $2,000<$10,000 Loss of containment of substance (remains on premises) <20 litres. Local complaint satisfactorily resolved Downtime of critical equipment < 1Hours Property Damage < $2,000
Hazard Potential Pollution Incident and conditions influencing likelihood of occurrence Likelihood of incident occurring Consequence of incident Proposed Actions Pre –emptive actions (avoid impact) Control Actions (minimise impact) Risk Hydrocarbon Storage Polluting Incident Hydrocarbon spill to land from bulk tanks and drum storage areas Influencing Conditions Breakage of pipe or fitting Impact/damage to tank/racks or bunding releasing diesel or oil Hydrocarbons not stored correctly Rare Catastrophic Pre-emptive Actions Appropriately designed and constructed bunding for all bulk tanks and drum storages Spill kits located on site Regular inspections and maintenance Continuing education through toolbox meetings Compliant refuelling systems used supply contractor Site induction for all employees and contractors External Audits of dangerous goods storage area Incident control actions: Stop release at sources Contain release using spill kits or earth bunding Follow incidence response plan and procedure Remediate area High (15) Chemical Storage Polluting Incident Chemical spill to land from bulk tanks and drum storage areas Influencing Conditions Breakage of pipe or fitting Impact/damage to tank/racks or bunding releasing diesel or oil Chemicals not stored correctly Rare Major Pre-emptive Actions Appropriately designed and constructed bunding for all bulk tanks and drum storages Regular inspections and maintenance Continuing education through toolbox meetings Compliant refuelling systems used supply contractor Site induction for all employees and contractors External Audits of dangerous goods storage area Incident control actions: Stop release at source where safe to do so Follow incidence response plan and emergency response plan Engage contractor to carry out clean up and dispose of material to licensed facility Remediate area where necessary High (15) Hazard Potential Pollution Incident and conditions influencing likelihood of occurrence Likelihood of incident occurring Consequence of incident Proposed Actions Pre –emptive actions (avoid impact) Control Actions (minimise impact) Risk
Tailings Storage Facility (TSF) Polluting Incident TSF2 overtopping pit wall Influencing Conditions Major rainfall/storm event Rare Catastrophic Pre -emptive Actions: TSF designed and operated in accordance of Rasp TSF Construction and Operations Manual. and monthly routine inspections carried out Re use of water in tailings facility Incident Control Actions: Cease pumping of tailings into TSF or divert flow to alternate area of TSF Control release of tailings or water by installing temporary earth bunding down slope of release Follow incident response plan and emergency response procedure High (15) Surface water storage Polluting Incident Overtopping of surface catchment dams/ponds releasing contaminated water onto land Influencing Conditions Poor maintenance of storage ponds/drains Major rainfall/storm event Rare Catastrophic Pre-emptive Actions: Catchments, ponds/dams and drains designed and located in accordance with regulator approved Site Water Management Plan Regular drain maintenance carried out Regular inspections carried out Installation of high water markers in all surface water storage facilities. Incident Control Actions: Cease flow of water into dam/pond via diversions or pumping Follow incident response plan Remediate area that impacted upon by release High (15) Medium (10) Mobile Plant Polluting Incident Release of oil/fuel from plant Influencing Conditions Damage due to plant collision Poor maintenance Equipment failure Unlikely Pre-emptive Actions Spill kits located on site Regular inspections and maintenance Continuing education through toolbox meetings Compliant refuelling systems Site induction for all employees and contractors Incident control actions: Stop release at sources Contain release using spill kits or earth bunding Follow incidence response plan and procedure Remediate area Medium (14) Hazard Potential Pollution Incident and conditions influencing likelihood of occurrence Likelihood of incident occurring Consequence of incident Proposed Actions Pre –emptive actions impact) Control Actions (minimise impact) Polluting Incident Rare Catastrophic
Concentrate transport Spillage of metal concentrates from rail wagons Influencing Conditions failure causing train to derail resulting in release of lead/zinc concentrate to land Rolling failure causing train to derail resulting in release of lead/zinc concentrate to land Agreements in place with rail transport company regarding standards and methods of transport Programmed track inspections carried out Regular track maintenance carried out Incident control actions: Make site safe Follow incidence response plan and emergency response procedure Remediate area High (15) Ground water seepage Pollution Incident Seepage from surface water storages and TSF to land and groundwater Influencing Conditions Failure of interception trench pumps Blockage of interception trenches Transformer failure or long term power failure Unlikely Pre-emptive Actions Routine monitoring of piezometer depths carried out Routine monitoring of ground in piezometers carried out Daily inspections carried out of all pumps and trenches surrounding TSF and evaporation dam Backup diesel pumps on site Incident control actions Carryout repair or improvement works to interception trench pumping systems Connect diesel pumps to system in the event of long term power interruption Remediate area Medium (14) Particulate matter Pollution Incident Dust from the CML7 blowing into the local community Influencing Conditions Failure of dust suppression through water trucks or chemical application Dry and windy environmental conditions Medium (14) Pre-emptive Actions Routine monitoring of dust levels Routine monitoring of weather conditions Daily activity of water truck Backup water truck available Incident control actions Follow incidence response plan and emergency response procedure Remediate area Hazard Potential Pollution Incident and conditions influencing likelihood of occurrence Likelihood of incident occurring Consequence of incident Proposed Actions Pre –emptive actions (avoid impact) Control Actions (minimise impact) Gas Storage Pollution Incident Rare Significant