Tank Cleaning Hazard Register

					L	M	H	S
TC Hazard	Location	Threat	Top Event	Potential Consequences	Potential Risk
TC Hazard	Location	Threat	Top Event	Potential Consequences	P	A	E	R
Oil Non Toxic Non Flammable	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality Pollution Asset damage	B2	B1	B2	B1

Oil Flammable inerted	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality (multiple) Pollution Fire & Explosion Asset damage	B2	B1	B2	B1
Oil Flammable Non inerted	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality (multiple) Pollution Fire & Explosion Asset damage	B5	B5	B4	B4
Oil Flammable Gas Freeing	At any time	Maintenance failure Equipment failure Human error Inadequate PPE	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality (multiple) Pollution Fire & Explosion Asset damage	B5	B4	B4	B4
Oil Toxic	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment	Chronic disease (cancer) Injury Permanent Disability Fatality (multiple) Pollution	B5	B2	C2	C2
Oil Toxic Gas Freeing	At any time	loss of primary containment	Loss of primary containment	Chronic disease (cancer) Injury Permanent Disability Fatality (multiple) Pollution	B5	B1	C2	C2

Chemical Non Toxic Non Flammable	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality Pollution Asset damage	B3	B1	C2	B1

Chemical Flammable Inerted	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality (multiple) Pollution Fire & Explosion Asset damage	B5	B2	B2	B2
Chemical Flammable Non Inerted	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality (multiple) Pollution Fire & Explosion Asset damage	B5	B5	B5	B4
Chemical Flammable Gas Freeing	At any time	loss of primary containment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Permanent Disability Fatality (multiple) Pollution Fire & Explosion Asset damage	B5	B5	B5	B4
Chemical Toxic	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Chronic disease (cancer) Permanent Disability Fatality Pollution	B5	B2	B2	B4
Chemical Toxic Gas Freeing	At any time	loss of primary containment	Loss of primary containment Release of cargo Release of cargo vapours Release of Inert Gas	Injury Chronic disease (cancer) Permanent Disability Fatality Pollution	B5	B2	B2	B4
Cargo Self Reactive	At any time	Human error Lack of awareness Stowage failure Inadequate PPE Maintenance failure Equipment failure	Loss of primary containment (Reaction / polymerization)	Injury Fatality Pollution Fire & Explosion Asset damage	B3	B2	B1	B3
Cargo Water Reactive	At Sea	Human error Lack of awareness Stowage failure Inadequate PPE Maintenance failure Equipment failure	Loss of primary containment (Reaction, Contact to product) (Acid reaction with Water – excessive heat and/or creation of flammable vapours)	Injury Fatality Pollution Fire & Explosion Asset damage	B4	B2	B2	B3
Cargo Reactive with other	At Sea	Human error Lack of awareness Stowage failure Inadequate PPE Maintenance failure Equipment failure	Loss of primary containment (Spontaneous Reaction)	Injury Fatality Pollution Fire & Explosion Asset damage	B5	B4	B2	B2
Corrosive cargo	At Sea or in Port	Maintenance failure Equipment failure Human error Inadequate PPE	Loss of primary containment (Exposure to corrosive liquid or vapours Damage to the cargo system Breakthrough of the cargo to the Ballast Tank)	Injury Fatality Over pressurisation Pollution	C3	C1	C2	C3

Solidifying cargo	At any time	Maintenance failure Equipment failure Human error Hot surface Inadequate PPE	Loss of primary containment Blocking of vapour system.	Injury Over pressurisation Pollution	C2	C3	B4	B3
High Viscosity cargo	At any time	Equipment failure Human error	Loss of primary containment Un-pumpable Cargo in the Tank	Injury Over pressurisation Pollution	B2	B2	B3	B2
High Density Cargo	At any time	Equipment failure Human error	Loss of primary containment Damage of the vessels structure	Injury Permanent Disability Pollution Asset damage	B1	B2	B1	B1

Cargo Slops Reactive	At any time	Maintenance failure Equipment failure Human error Inadequate PPE Wrong equipment	Loss of primary containment Spontaneous Reaction Polymerization Creation of Excessive Heat Creation of hazardous vapours Release of cargo Release of cargo vapours Release of Inert Gas	Injury Fatality Pollution Fire & Explosion Asset damage	B5	B2	B1	B2

Nitrogen	At Sea and in port	Equipment failure Maintenance failure Human error	Loss of primary containment (Nitrogen in the Tank remaining, Tank over pressurisation Excessive Nitrogen on deck, Reaction with cargo residue)	Injury Asphyxiation Fatality Pollution Asset damage	B5	B4	B1	B4
Tank Entry for Tank Cleaning operations	At any time	Equipment failure Maintenance failure Human error	Slips and Fall Unsuitable atmosphere	Injury Asphyxiation Fatality	C5	B1	B1	C3