TRA for Storage Tank Erection

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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 1 of 34
General
Facility Information:
Company: Dolphin Energy Limited Qatar Operation
Location: Ras Laffan Gas Plant, Qatar
Unit: Fire Zone: FZ02 Unit: 144 Tag #: 144-OT-1001 Name: Construction of Liquid Sulphur Storage Tank
Project ID: DEL QOP
Study Duration:
Start: 6/13/2011
End: 6/13/2011
Methodology:
Type: Task Risk Assessment as per QOP OMS Procedure QQH-GEN-0000-FRP-00025
GENERAL:
The new Sulphur Tank will be constructed using two construction methods; (1) conventional tank construction for Tank shell course 5 and 6, and a temporary roof
dome structure (2) using a Hydraulic Tank Jacking Equipment to install Tank shell course 1, 2, 3 and 4. This TRA will cover both construction methodologies.

CONDITIONS:
1. Tank foundation, bottom and annular plate installation is completed with all NDT and radiography completed.
2. All pre-fabricated parts required for the construction of the tank is shipped from the DOPET yard in DELWA to the construction site in the Dolphin Facility.
3. All fabricated parts shall be identified with Tank No, Part No, Item No and Drawing No.
4. All pre-fabricated items are properly supported and packed for transport from the DOPET yard in DELWA to the construction site in the Dolphin Facility.
5. All Hydraulic Tank Jacking equipment shall have valid 3
rd
Party Inspection Certificates.
6. All other lifting equipment used during the course of work shall have valid 3
rd
Party Inspection Certificates (expect field welded lugs which will be inspected by
competent welding inspector from DOPET or PMT).
7. All tank construction work shall comply with the Dolphin PTW and Safe Work System.
8. Four (4) Naked Flame Permits are allowed during the construction of the Tank; when additional Naked Flame Permits are required then the requirement shall be
re-assessed by QOP ( Based on the quantum of work permitted without causing distortion due to welding).
9. QOP approved Rescue Plan in place.
10. During the lifting process all required guy wires (4) shall be in place to maintain tank stability.
11. Guy wires shall be installed and the roof will have four (4) open areas (no plate installed) to prevent movement or lifting of the tank during high winds and for
ventilation.
12. Maximum number of personnel allowed inside during lifting of tank shell using hydraulic jacks is 6 people (two hydraulic jack operators, two helpers, and two
safety watch).
13. Maximum number of personnel allowed inside the tank area during welding of shell course 5 and 6, and roof structure is 14
14. Maximum number of personnel allowed inside the tank area during welding of shell course 4, 3, 2 and 1 is 10 subject to work conditions.
15. Maximum number of personnel allowed inside the tank area during vacuum box testing of bottom plate welds is 4.
16. No lifting activities (crane operation) if wind speed is above 20 knots as per Dolphin standard.



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ASSUMPTIONS:
1. All items that are required for tank construction and pre-fabricated in DOPET and Vendor workshops have passed the required inspections as stipulated in the ITP
2. All dimensional measurements of tank ancillary equipment have been pre-checked and conform to the Company approved drawings and are within the allowable
tolerances
3. Tank is constructed in accordance with API 650 Standard
4. All personnel assigned to operate the Hydraulic Tank Jacking Equipment are competent
5. Construction of the roof dome temporary structure requires mobile scaffolding
6. Welding of the horizontal and vertical seams and seal welding of the roof plates requires mobile scaffolding
7. Temporary structure required to support the crown plate, roof frame and roof petals during construction of the roof dome.

STEPS OF THE WORK METHOD STATEMENT:

1. Receiving Material on Site
2. Conventional Construction of Tank Shell Course 5 and 6
3. Construction of Curb Angle
4. Construction of roof dome temporary structure
5. Installation of Hydraulic Tank Jacking Equipment
6. Construction of Tank Shell Course 1, 2, 3, and 4
7. Installation of Tank staircase, roof walkway and steam coils
8. Vacuum Box Testing
9. Hydrostatic Testing
10. Painting

















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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 3 of 34
Team Members
First Name Last Name Title Company
Narendran CK Project HSE Manager DOPET
Veeraraghavan N HSE Officer DOPET
Srinivasa Rao Sr. Project Engineer DOPET
Sunil Palmal Tank Supervisor DOPET
Jeeri Reddy Tank Engineer DEL
Nitin Reddy Mech Supervisor DEL
Ramadhan Al Bulshi HSE Officer DEL
Reginald Simons Project Specialist DEL
Shaji Kumar Field HSE Coordinator DEL
Neil Cooper ERT Chief DEL
Malik Al Bushi Sr. HSE Officer DEL




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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 4 of 34
Sessions
Date Duration Description Leader Scribe Comment
1. 6/13/2011 1.50 Reginald Simons Reginald Simons




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Attendance
Team Members
Sessions
1. 6/13/2011

Hours
Narendran Present 1.5
Veeraraghavan Present 1.5
Srinivasa Present 1.5
Sunil Present 1.5
Jeeri Present 1.5
Nitin Present 1.5
Ramadhan Present 1.5
Reginald Present 1.5
Shaji Present 1.5
Neil Present 1.5
Malik Present 1.5




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Drawings
Drawing / Procedure Title File Path





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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 7 of 34
Revalidation History
Start Date End Date Comments
6/13/2011 6/13/2011




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System
System / Main Activity Drawings Comment
1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment




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Subsystems
Rig Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step Activities Design Conditions/Parameters Drawings Comment
1. Receiving Material on Site
2. Conventional Construction of Tank Shell Course 5 and 6
3. Construction of Curb Angle
4. Construction of roof dome temporary structure
5. Installation & Testing of Hydraulic Tank Jacking Equipment
6. Construction of Tank Shell Course 1, 2, 3, and 4
7. Installation of Tank staircase, roof walkway and steam coils
8. Vacuum Box Testing of Bottom & roof plate welds
9. Hydrostatic Testing
10. Blasting & Painting




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Worksheet
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 1. Receiving Material on Site Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Vehicle movement 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT
2. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
3. Crane failure (with load) 1. Property damage Moderate 1. Certified equipment Remote B (8) 1. Ensure no personnel under
suspended load.
Sunil Palmal
2. Crane inspection
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
2. Personal injury Major 1. Certified equipment Remote B (16)
2. Swinging zone shall be
Barricaded
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
4. Oil spills (hydraulic oil from crane) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Crane inspection
3. Competent


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System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 1. Receiving Material on Site Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
operator/personnel
5. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation
6. Manual handling (shifting heavy
equipment)
1. Personal injury Minor 1. Trained personnel in manual
handling technique
Remote A (1)
2. TBT
3. Supervision
7. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 2. Conventional Construction of Tank Shell Course 5 and 6 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Caught in between equipment and
pinch points
1. Personal injury Minor 1. PPE Remote A (1)
2. Competent personnel
3. Barricade with proper
warning signage
2. Crane failure (with load) 1. Property damage Moderate 1. Certified equipment Remote B (8) 1. Ensure no personnel under
suspended load.
Sunil Palmal
2. Crane inspection
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
2. Personal injury Major 1. Certified equipment Remote B (16)


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System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 2. Conventional Construction of Tank Shell Course 5 and 6 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
2. Swinging zone shall be
Barricaded
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
3. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
4. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person
3. Proper earthing
4. Proper cable & hoses
management
5. Fire 1. Property damage Minor 1. Fire watcher Remote A (1)
2. Firefighting equipment
3. Habitat with fire blanket
4. Gas monitor
2. Personal injury Moderate 1. Firefighting equipment Remote B (8)
2. TBT
3. Approved PPE
6. Flying objects (due to grinding) 1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment


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System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 2. Conventional Construction of Tank Shell Course 5 and 6 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
7. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation
8. Inhalation of fumes (welding) 1. Personal injury Minor 1. Adequate ventilation Remote A (1) 3. 3M face Mask should be kept at site Veeraraghavan N
2. Approved PPE
3. Proper positioning by
competent person
9. Manual handling (shifting heavy
equipment)
1. Personal injury Minor 1. Trained personnel in manual
handling technique
Remote A (1)
2. TBT
3. Supervision
10. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
11. Oil spills (Diesel from Gen set) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Crane inspection
3. Competent
operator/personnel
12. Radiography 1. Personal injury Minor 1. Competent personnel Remote A (1)
2. Radiography shall be done in
normal off hours
3. Barricade with proper
warning signage
13. Working at height 1. Personal injury Minor 1. Fall protection with 100 % tie
off
Remote A (1)
2. TBT
3. Supervision
4. Competent personnel
14. Vehicle movement 1. Property damage Moderate 1. Competent driver Remote B (8)


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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 14 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 2. Conventional Construction of Tank Shell Course 5 and 6 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
2. Banks man
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 3. Construction of Curb Angle Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Caught in between equipment and
pinch points
1. Personal injury Minor 1. PPE Remote A (1)
2. Competent personnel
3. Barricade with proper
warning signage
2. Chemical exposure 1. Personal injury Minor 1. Approved PPE Remote A (1)
2. Competent personnel
3. MSDS
4. TBT
3. Crane failure (with load) 1. Property damage Moderate 1. Certified equipment Remote B (8) 1. Ensure no personnel under
suspended load.
Sunil Palmal
2. Crane inspection
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
2. Personal injury Major 1. Certified equipment Remote B (16)
2. Swinging zone shall be
Barricaded
3. Adequate tag line


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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 15 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 3. Construction of Curb Angle Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
4. Competent personnel
5. Crane SWL should be check
before lifting
4. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
5. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person
3. Proper earthing
4. Proper cable & hoses
management
6. Fire 1. Property damage Minor 1. Fire watcher Remote A (1)
2. Firefighting equipment
3. Habitat with fire blanket
4. Gas monitor
2. Personal injury Moderate 1. Firefighting equipment Remote B (8)
2. TBT
3. Approved PPE
7. Flying objects (due to grinding) 1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
8. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter


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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 16 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 3. Construction of Curb Angle Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Work rotation
9. Inhalation of fumes (welding) 1. Personal injury Minor 1. Adequate ventilation Remote A (1) 3. 3M face Mask should be kept at site Veeraraghavan N
2. Approved PPE
3. Proper positioning by
competent person
10. Manual handling (shifting tools &
Tackles)
1. Personal injury Minor 1. Trained personnel in manual
handling technique
Remote A (1)
2. TBT
3. Supervision
11. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
12. Oil spills (Diesel from Gen set) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Crane inspection
3. Competent
operator/personnel
13. Radiography 1. Personal injury Minor 1. Competent personnel Remote A (1)
2. Radiography shall be done in
normal off hours
3. Barricade with proper
warning signage
14. Working at height 1. Personal injury Minor 1. Fall protection with 100 % tie
off
Remote A (1)
2. TBT
3. Supervision
4. Competent personnel
15. Vehicle movement 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man
3. Pre-start route survey
4. TBT


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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 17 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 3. Construction of Curb Angle Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 4. Construction of roof dome temporary structure Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Caught in between equipment and
pinch points
1. Personal injury Minor 1. PPE Remote A (1)
2. Competent personnel
3. Barricade with proper
warning signage
2. Crane failure (with load) 1. Property damage Moderate 1. Certified equipment Remote B (8) 1. Ensure no personnel under
suspended load.
Sunil Palmal
2. Crane inspection
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
2. Personal injury Major 1. Certified equipment Remote B (16)
2. Swinging zone shall be
Barricaded
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
3. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)


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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 18 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 4. Construction of roof dome temporary structure Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
2. Load is properly secured
3. TBT
4. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person
3. Proper earthing
4. Proper cable & hoses
management
5. Fire 1. Property damage Minor 1. Fire watcher Remote A (1)
2. Firefighting equipment
3. Habitat with fire blanket
4. Gas monitor
2. Personal injury Moderate 1. Firefighting equipment Remote B (8)
2. TBT
3. Approved PPE
6. Flying objects (due to grinding) 1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
7. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation
8. Inhalation of fumes (welding) 1. Personal injury Minor 1. Adequate ventilation Remote A (1) 3. 3M face Mask should be kept at site Veeraraghavan N
2. Approved PPE
3. Proper positioning by
competent person
9. Manual handling (shifting tools &
Tackles)
1. Personal injury Minor 1. Trained personnel in manual
handling technique
Remote A (1)
2. TBT


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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 19 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 4. Construction of roof dome temporary structure Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Supervision
10. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
11. Oil spills (Diesel from Gen set) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Crane inspection
3. Competent
operator/personnel
12. Vehicle movement (Crane & Flat bed) 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT
13. Working at height 1. Personal injury Minor 1. Fall protection with 100 % tie
off
Remote A (1)
2. TBT
3. Supervision
4. Competent personnel

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 5. Installation & Testing of Hydraulic Tank Jacking Equipment Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Caught in between equipment and
pinch points
1. Personal injury Minor 1. PPE Remote A (1)
2. Competent personnel


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System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 5. Installation & Testing of Hydraulic Tank Jacking Equipment Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Barricade with proper
warning signage
2. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
3. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person
3. Proper earthing
4. Proper cable & hoses
management
4. Failure of hydraulic jack(s) 1. Personal injury Minor 1. Certified equipment Remote A (1)
2. Regular inspection of Jacking
equipment by competent
person
3. Competent personnel
4. TBT
5. Flying objects (due to grinding) 1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
6. Fire 1. Property damage Minor 1. Fire watcher Remote A (1)
2. Firefighting equipment
3. Habitat with fire blanket
4. Gas monitor
2. Personal injury Moderate 1. Firefighting equipment Remote B (8)
2. TBT


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System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 5. Installation & Testing of Hydraulic Tank Jacking Equipment Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Approved PPE
7. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation
8. Inhalation of fumes (welding) 1. Personal injury Minor 1. Adequate ventilation Remote A (1) 3. 3M face Mask should be kept at site Veeraraghavan N
2. Approved PPE
3. Proper positioning by
competent person
9. Manual handling (shifting tools &
Tackles)
1. Personal injury Minor 1. Trained personnel in manual
handling technique
Remote A (1)
2. TBT
3. Supervision
10. Oil spills (hydraulic oil) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Crane inspection
3. Competent
operator/personnel
11. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
12. Vehicle movement 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment


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Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 22 of 34
Subsystem / Job Step: 6. Construction of Tank Shell Course 1, 2, 3, and 4 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Caught in between equipment and
pinch points
1. Personal injury Minor 1. PPE Remote A (1)
2. Competent personnel
3. Barricade with proper
warning signage
2. Chemical exposure 1. Personal injury Minor 1. Approved PPE Remote A (1)
2. Competent personnel
3. MSDS
4. TBT
3. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
4. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person
3. Proper earthing
4. Proper cable & hoses
management
5. Failure of hydraulic jack(s) 1. Property damage Major 1. Anti fall (Mechanical) locking
system equipped with the
lifting jacks
Remote B (16)
2. Load is Guided by a trestle
(columns) which lowers the
load slowly.
3. Certified equipment
4. Regular inspection of Tank
Jacking equipments by
competent person
5. Competent
operator/personnel
2. Personal injury Major 1. Anti fall (Mechanical) locking Remote B (16)


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 23 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 6. Construction of Tank Shell Course 1, 2, 3, and 4 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
system equipped with the
lifting jacks
2. Load is Guided by a trestle
(columns) which lowers the
load slowly.
3. Certified equipment
4. Regular inspection of Jacking
equipments by competent
person
5. Competent
operator/personnel
6. Fire 1. Property damage Minor 1. Fire watcher Remote A (1)
2. Firefighting equipment
3. Habitat with fire blanket
4. Gas monitor
2. Personal injury Moderate 1. Firefighting equipment Remote B (8)
2. TBT
3. Approved PPE
7. Flying objects (due to grinding) 1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
8. Flying objects (due to release of stored
energy)
1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
9. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 24 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 6. Construction of Tank Shell Course 1, 2, 3, and 4 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
10. Inhalation of fumes (welding) 1. Personal injury Minor 1. Adequate ventilation Remote A (1) 3. 3M face Mask should be kept at site Veeraraghavan N
2. Approved PPE
3. Proper positioning by
competent person
11. Manual handling (shifting Tools &
tackles)
1. Personal injury Minor 1. Trained personnel in manual
handling technique
Remote A (1)
2. TBT
3. Supervision
12. Oil spills (diesel fuel) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Inspection
3. Competent
operator/personnel
13. Oil spills (hydraulic oil) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Crane & Hydraulic pump
inspection
3. Competent
operator/personnel
14. Radiography 1. Personal injury Minor 1. Competent personnel Remote A (1)
2. Radiography shall be done in
normal off hours
3. Barricade with proper
warning signage
15. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
16. Vehicle movement (crane & flat bed) 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 25 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 6. Construction of Tank Shell Course 1, 2, 3, and 4 Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
2. Banks man
3. TBT
17. Working at height 1. Personal injury Minor 1. Fall protection with 100 % tie
off
Remote A (1)
2. TBT
3. Supervision
4. Competent personnel

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 7. Installation of Tank staircase, roof walkway and steam coils Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Caught in between equipment and
pinch points
1. Personal injury Minor 1. PPE Remote A (1)
2. Competent personnel
3. Barricade with proper
warning signage
2. Chemical exposure 1. Personal injury Minor 1. Approved PPE Remote A (1)
2. Competent personnel
3. MSDS
4. TBT
3. Crane failure (with load) 1. Property damage Moderate 1. Certified equipment Remote B (8) 1. Ensure no personnel under
suspended load.
Sunil Palmal
2. Crane inspection
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
2. Personal injury Major 1. Certified equipment Remote B (16)
2. Swinging zone shall be
Barricaded


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 26 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 7. Installation of Tank staircase, roof walkway and steam coils Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Adequate tag line
4. Competent personnel
5. Crane SWL should be check
before lifting
4. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
5. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person
3. Proper earthing
4. Proper cable & hoses
management
6. Fire 1. Property damage Minor 1. Fire watcher Remote A (1)
2. Firefighting equipment
3. Habitat with fire blanket
4. Gas monitor
2. Personal injury Moderate 1. Firefighting equipment Remote B (8)
2. TBT
3. Approved PPE
7. Flying objects (due to grinding) 1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
8. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 27 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 7. Installation of Tank staircase, roof walkway and steam coils Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
2. Rest shelter
3. Work rotation
9. Inhalation of fumes (welding) 1. Personal injury Minor 1. Adequate ventilation Remote A (1) 3. 3M face Mask should be kept at site Veeraraghavan N
2. Approved PPE
3. Proper positioning by
competent person
10. Manual handling (shifting of tools &
Tackles)
1. Personal injury Minor 1. Trained personnel in manual
handling technique
Remote A (1)
2. TBT
3. Supervision
11. Oil spills (diesel fuel) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Inspection
3. Competent
operator/personnel
12. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
13. Vehicle movement (crane & flat bed) 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT
14. Working at height 1. Personal injury Minor 1. Fall protection with 100 % tie
off
Remote A (1)
2. TBT
3. Supervision
4. Competent personnel


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 28 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 7. Installation of Tank staircase, roof walkway and steam coils Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
15. Vehicle movement 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 8. Vacuum Box Testing of Bottom & roof plate welds Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Caught in between equipment and
pinch points
1. Personal injury Minor 1. PPE Remote A (1)
2. Competent personnel
3. Barricade with proper
warning signage
2. Confined space 1. Personal injury Moderate 1. Approved rescue plan Remote B (8)
2. DEL Confined space entry
procedure
3. Hole watch
4. TBT
5. Competent personnel
3. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 29 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 8. Vacuum Box Testing of Bottom & roof plate welds Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
4. Flying objects (due to release of stored
energy)
1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
5. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation
6. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 9. Hydrostatic Testing Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 30 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 9. Hydrostatic Testing Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Proper earthing
4. Proper cable & hoses
management
3. Oil spills (diesel fuel) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Inspection
3. Competent
operator/personnel
4. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation
5. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
6. Working at height 1. Personal injury Minor 1. Fall protection with 100 % tie
off
Remote A (1)
2. TBT
3. Supervision
4. Competent personnel
7. Flooding 1. Property damage Major 1. Proper tank Inspection
throughout construction
Remote B (16)
2. Compliance with QA/QC
Procedures
3. Tank is constructed in
accordance with API 650
2. Personal injury Moderate 1. Proper tank Inspection
throughout construction
Remote B (8)
2. Compliance with QA/QC
Procedures
3. Tank is constructed in
accordance with API 650


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 31 of 34

System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 10. Blasting & Painting Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
1. Chemical exposure 1. Personal injury Minor 1. Approved PPE Remote A (1)
2. Competent personnel
3. MSDS
4. TBT
2. Dropped objects 1. Property damage Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Load is properly secured
3. TBT
3. Flying objects (due to release of stored
energy)
1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
4. Heat Stress 1. Personal injury Moderate 1. DEL heat stress
management program
Remote B (8) 2. Suffient water shall be in place in
rest shelter
Veeraraghavan N
2. Rest shelter
3. Work rotation
5. Oil spills (diesel fuel) 1. Environmental impact Minor 1. Certified equipment Remote A (1)
2. Inspection
3. Competent
operator/personnel
6. Slip, trip and falls 1. Personal injury Minor 1. Good housekeeping to be
maintained
Remote A (1)
2. Warning signage
3. Proper cable & hoses
management
7. Vehicle movement 1. Property damage Moderate 1. Competent driver Remote B (8)
2. Banks man


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 32 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 10. Blasting & Painting Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Pre-start route survey
4. TBT
2. Personal injury Minor 1. Competent driver Remote A (1)
2. Banks man
3. TBT
8. Working at height 1. Personal injury Minor 1. Fall protection with 100 % tie
off
Remote A (1)
2. TBT
3. Supervision
4. Competent personnel
9. Noise 1. Personal injury Minor 1. Hearing protection Remote A (1)
2. Controlled operation
10. Flying objects (grit blasting) 1. Personal injury Moderate 1. Approved PPE Remote B (8) 4. Ensure that a proper habitat is in
place to prevent the release of grit
to atmosphere
Sunil Palmal
2. TBT
3. Competent personnel
4. Approved & Certified
equipment
5. Habitat covering area blasted
11. Inhalation of fumes (paint/chemicals) 1. Personal injury Minor 1. MSDS Remote A (1) 3. 3M face Mask should be kept at site Veeraraghavan N
2. Approved and appropriate
PPE
3. TBT
12. Electric shock 1. Personal injury Moderate 1. Certified & DEL inspected
Electrical equipment
Remote B (8)
2. Regular inspection by
competent person
3. Proper earthing
4. Proper cable & hoses
management
13. Flying objects (due to grinding/power
brushing)
1. Personal injury Moderate 1. Approved PPE Remote B (8)
2. TBT


TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 33 of 34
System / Main Activity: 1. Sulphur Tank Construction using Hydraulic Tank Jacking Equipment
Subsystem / Job Step: 10. Blasting & Painting Drawings:
Activities: Equipment ID:
Design Conditions/Parameters:
Hazards/Safety Issue or concerns Consequences S Safeguards
Risk Matrix
Recommendations Responsibility
L RR
3. Competent personnel
4. Approved & Certified
equipment




TASK RISK ASSESSMENT



Sulphur Tank Construction Using Hydraulic Tank Jacking Equipment Page 34 of 34
Recommendations
Recommendations Place(s) Used Responsibility Comment Signature
1. Ensure no personnel under suspended load. Hazards: 1.1.3, 1.2.2, 1.3.3, 1.4.2,
1.7.3
Sunil Palmal
2. Suffient water shall be in place in rest shelter Hazards: 1.1.5, 1.2.7, 1.3.8, 1.4.7,
1.5.7, 1.6.9, 1.7.8, 1.8.5, 1.9.4,
1.10.4
Veeraraghavan N
3. 3M face Mask should be kept at site Hazards: 1.2.8, 1.3.9, 1.4.8, 1.5.8,
1.6.10, 1.7.9, 1.10.11
Veeraraghavan N
4. Ensure that a proper habitat is in place to prevent the
release of grit to atmosphere
Hazards: 1.10.10 Sunil Palmal