Ventia - Confined Space Risk Assessment & Permit

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Confined space risk assessment

Is it a Confined Space?
To establish if a space is a potential Confined Space the following questions need to be answered. The first step is to examine the physical characteristics and the inherent hazards of the space itself, not the task or any tasks to be performed within that space.
Is the space an enclosed or partially enclosed space that is not intended or designed primarily as a place for human occupancy?
Is the space liable at any time to have? a) An oxygen concentration outside the safe oxygen range b) A concentration of airborne contaminant that may cause impairment, loss of consciousness or asphyxiation c) A concentration of flammable airborne contaminant that may cause injury from fire or explosion d) Engulfment in a stored free-flowing solid or rising liquid that may cause suffocation or drowning.
This works area is NOT deemed to be a confined space. Continue works as per your SHEWMS and/or work instructions. Notify a supervisor if you are unsure about the outcome of this assessment.
This works area IS deemed to be a confined space. Continue with the risk assessment below.

Atmospheric conditions

Test the atmosphere for 5 minutes around the entry and at different locations in the space (e.g. working area, top, middle, bottom) and record the readings below
Gas monitor serial number
Do you know the bump test procedure?
Which type of monitor are you using?
This gas monitor can not be bump tested on site, return to storeman for testing.
Has the gas monitor been successfully bump tested this shift?
Stop and bump test before proceeding. If you are unable to bump test or the test was unsuccessful, notify your supervisor immediately.
Oxygen Oxygen Deficiency if < 19.5% Oxygen Enrichment if > 23.5%
Hydrogen Sulphide <10ppm
Carbon monoxide <30ppm
Lower Exposure Limit (LEL) % <10%
Are all readings within safe levels?
Continuous monitoring is to be carried out through the duration of the works in the workers breathing space.

Are there any unusual features and / or adjacent processes that may impact on the need, or safety, of entry.
Describe the feature/s or process/es and how you will control the risks.
Oxygen deficiency or surplus
List the controls
Combustible atmosphere
List the controls
Toxic atmosphere
List the controls
Fluids
List the controls
Contaminants
List the controls
Oxidisation, decomposition
List the controls
Moving equipment (in/outside)
List the controls
Engulfment
List the controls
Pressurised lines (air/fluid/gas)
List the controls
Machinery that may auto start
List the controls
Natural hazards, insects etc.
List the controls
Electrocution
List the controls
Ergonomics (poor posture)
List the controls
Difficult access/egress
List the controls
Fire/explosion
List the controls
Hazardous chemicals
List the controls
Excessive noise
List the controls
Poor lighting
List the controls
Dust
List the controls
Remote location
List the controls
Poor communication
List the controls
Competent person

Confined Space Permit

Work Controls
Confined space physically isolated from hazardous energy
Emergency response plan in place and understood
Confined space been cleaned and/or purged of contaminants
Appropriate type / suitable number of fire extinguishers
If hot works are undertaken, dedicated Fire Watch during and 30 minutes after works required and organised
Weather conditions considered e.g. risk of heavy rain/potential flooding
Adequate earthing to electrical equipment
All electrical equipment is intrinsically safe
Confined Space Entry Log
Breathing apparatus required and organised
Standby and entry personnel fit and competent
Gas testing / monitoring required and organised including Atmospheric Monitoring Log
Associated pipelines, tanks, valves certified gas /liquid/vapour free and isolated
Exclusion zone set up and adjacent works considered
Area barricaded and warning signage in place
Extraction / forced ventilation required and organised
Flammable/Combustible materials removed from area
First Aider with CPR competency required and organised
Communication equipment required, organised and tested
Safe & adequate access and egress

A person required to work under this Permit to Work (PTW) must comply with \ the following instructions:
1. Ensure you understand the scope of the work activity and your role / tasks.
2. Ensure you have read, and/or have had explained and understand the requirements of the SHEWMS and any associated Permits. Ask questions if you are unsure and report any concerns / issues immediately.
3. At the start of each working shift ensure the Permit Acceptor has had the Permit revalidated and obtained permission to commence work.
Notify the Permit Acceptor immediately if you become aware of a new hazard or change in conditions while performing the works.
Sign on

I’VE BEEN ADVISED OF AND UNDERSTAND THE CONTROL MEASURES AND PRECAUTIONS TO BE OBSERVED WITH THE ENTRY AND WORK IN THE CONFINED SPACE
Time in
Sign in
Time out
Sign out

All works associated with this permit have been:
All persons and equipment accounted for:
Equipment checked and restocked correctly:
Work area & adjacent areas have been inspected after completion of the works and all hazards made safe:
Works completed
Permit issuer: I confirm that the works have been completed and that the area has been left in a safe condition.
No permit required.

Rescue Plan

IMPORTANT NOTE
Emergency procedures are to be rehearsed prior to works commencing. Should a change occur to the crew a new plan, with roles identified shall be made.
Emergency Response Equipment required
- Gas monitor
- Tripod/Davit arm
- Safety harness
- Winch system
- Lighting
- Fall arrest
- Fall restraint
- Life line/Rescue rope
- Stretcher
- BA kit
- Arachnipod
Site Location Details (including muster / meeting points):

Have all participants been briefed on and agree with the emergency rescue plan?
Do not commence works until all parties have been briefed and agree to the plan.