RESOURCES PTE LTD Co. Reg. No. 200101754G
5 9
W O O D L A N D S
I N D
P K
E 2 ,
&
S I N G A P O R E
7 5 7 4 7 6
T E L :
6 4 6 4 9 9 5 9
F A X :
6 4 6 4 9 9 4 9
02 June 2014
From: Senior Safety Manager
To:
Executive Manager
Subject: # 40-2014, ACTIVITY HAZARD RISK ASSESSMENT FOR CEILING AND WALL HACKING AT NANYANG TECHNOLOGICAL
UNIVERSITY
Ref: (a) Ministry of Manpower Regulations Regarding General Safety and Health 354A
1. Per reference (a), this risk assessment was completed to identify hazards that pose risk to workers, evaluate those hazards for
severity and likelihood of occurrence, and recommend corrective actions that will eliminate or minimize hazards associated with
hacking operations. Currently the following areas have been identified for this type of work:
a. Hall 8
b. Hall 11
2. This AHA will be reviewed periodically and updated as needed to reflect changes in working conditions, processes or addition of
new materials or equipment.
Introduction………………………………………………………………………………………………………….Page 1 & 2
Inventory of Work Activities………………………………………………………………………………….Page 3
1
Activity Risk Assessment Matrix……………………………………………………………………………Page 4
Activity Based Risk Assessment Form……………………………………………………………………Page 5
Fall Protection Plan……………………………..………………………………………………………………..Page
Listing of Competent Persons……………………………………………………………………………….Page 6
3. Please address any questions or concerns to me at 8205 8249 or lee_wilson@pnhgrp.com.
Respectfully,
T. L. Wilson
2
Risk Assessment Form
#40-2014, ACTIVITY HAZARD RISK ASSESSMENT FOR CEILING AND WALL HACKING OPERATIONS
Inventory of Work Activities
Company: PNH Resources PTE LTD
No.
1
2
Process Description
Preparation of the worksite and
prepare appropriate safety
precautions.
Assemble the appropriate tools
3
Prepare for demolitions
4
Debris removal
5
Removal of the footing of the wall
6
Clean-up
02 June 2014
Work Activities
Erect appropriate barricade to restrict access by unauthorized personnel. Post required safety warning signs to alert all that this is
a construction zone and must be avoided without appropriate safety equipment including hard hats, steel toed shoes, eye/face
protection and hearing protection.
Appropriate tools will depend on the scope of work but may include large sledgehammers, ball-peen hammers, impact drills,
chisels, use of jackhammers, shovels and wheelbarrows.
Drill small holes in surface to be hacked, holes should be about 8 inches apart and drill holes in the mortar on the corner of each
block of a concrete block wall. Chisel into the holes with a ball-peen hammer to widen them to about 3 inches or 7.62 cm in
diameter. Begin removing sections of wall with a sledgehammer. If the wall is over the worker’s head, make the first strikes with
the hammer at chest level, making sure that the worker moves after each blow to a clear spot. If it is a lower wall, start at the top
of the wall and work your way down.
Pick up the rubble with shovels and place in wheelbarrow. Remove debris from the premise by the wheel barrow and place In a
suitable receptacle for ultimate removal from the campus.
Remove the footing of the wall with a jackhammer. After the footing has been removed use the shovel to dig up any remaining
debris and transfer the debris as stated above to a suitable receptacles for ultimate removal from the campus.
Employ the use of brooms and mops as necessary to remove all remaining debris and reduce the level of dust as much as possible
as this may impact the finishing work.
3
#40-2014 ACTIVITY HAZARD RISK ASSESSMENT – FIVE POINT MATRIX EMPLOYED TO
QUANTIFY RISK – 02 June 2014
Risk Criteria
Severity (1-5, Lowest – Highest)
Likelihood ( 1-5, Lowest - Highest)
1-Negligible Injuries: slight injury or health effect,
2-Minor Injuries: Injury or ill health requiring first aid treatment only
3-Moderate Injury: Injury requiring medical treatment or ill health leading to disability
4-Major Injury Disability: serious injury or life threatening occupational disease
5-Castrophic: serious injury resulting in fatality or irreversible health damage with death
1-Rare: very unlikely to happen,
2-Remote: not likely to happen most of the time,
3-Occasional: likely to happen sometime,
4-Major Injury Disability: likely to happen several times regularly,
5-Almost Certain: Likely to happen
Risk Level (Severity x Likelihood)
Trivial Risk
:
Tolerable Risk :
Moderate Risk :
Substantial Risk :
Intolerable Risk :
1 to 2 (L)
3 to 9 (L)
10 to 19 (M)
20 to 24 (H)
25 (H)
- First aid treatment injury, minor cuts or bruises, clean-up effort for environmental impact
- First aid treatment Injury, minor cuts or bruises, clean-up effort for environmental impact
- Temporary disability, lost time injury, outpatient treatment, minor or short term environmental impact
- Serious Injury, permanent disability, major disruption and damage to equipment or structure, significant environmental
- Fatality or fatalities, serious injury, permanent disability, major structural or equipment damage, detriment environmental
The table above provides numerical methodology to better prioritize hazards. These values are the
criteria for the Activity-Based Risk Assessments beginning on the following page. No catastrophic
risk of any certainty was identified.
Risk is calculated mathematically by multiplying severity of the operation by the likelihood an
accident will occur. Generally risk levels calculated at 9 and below are considered acceptable,
manageable risk. This does not preclude the need to try and mitigate all risk to the lowest
possible level. However, those above nine should receive additional scrutiny to determine what
steps are available to reduce overall risk including, administrative controls, substitution of a
higher hazardous material for a less hazardous material, use of engineering controls or use of
personal protective equipment (PPE).
4
Risk Assessment Form
Activity-Based Risk Assessment Form
Company:
PNH RESOURCES PTE LTD
Process/Location:
#40-2014, Electric Arc Welding
Approved by:
(Name, designation)
(Date)
Bradamente Amoroso (Martin)
Project Manager
02 June 2014
1.
Conducted by: (Names, designations)
(Date)
Lee Wilson
Senior Safety Manager
02 June 2014
Last Review
Date:
Next
Review
Date:
Hazard Identification
Paul Lim
Operations Manager
02 June 2014
2. Risk Evaluation
01 December 2014
3. Risk Control
1a
1b
1c
1d
2a
2b
2c
2d
3a
3b
No
Work Activity
Hazard
Existing Risk Control
(if any)
SevErity
Additional Risk Control
Motor vehicle
(MV) accident
resulting in
injury or fatality
2
Likel
yhood
2
Risk
Level
Delivery of
tools,
equipment and
materials to the
worksite via the
public road
systems
Site Preparation
– Erection of
Protective/
Safety
Barricades,
Posting of
Safety Signage
Possible Accident/
Ill Health & Persons
at Risk
MV operator and
others who may be
assisting him in this
transportation
evolution.
4
Document any an all training
and inspections associated
with this phase of the
operation.
Action
Officer
Designation
Senior Safety
Manger and
Project
Manager
2
2
4
Recommend that usage of
eye protection be
emphasized before hacking
start and then several times
during the project.
Project
Manager
and Senior
Safety
Manager
1
2
Sight Hazard
from flying
debris
Musculoskeletal
from moving/
manipulating
safety barricade
materials.
Personnel
performing the
construction/
installation of the
safety/protective
barricades.
Personnel
performing the
construction/
installation of the
safety/protective
barricades.
MV operator maintains a
current and appropriate MV
operator’s license
Vehicle is inspected prior to use
to ensure it is in good condition
for use on public roadways.
All PNH workers are issued sight
protection and receive training
on sight conservation several
times during the calendar year.
All PNH workers receive training
at least 3 times annually on the
risk of musculoskeletal injuries
including sprains, strains,
muscle tearing and ligament
damage.
5
2
2
4
Sight Protection equipment
should always be inspected
prior to use.
Ensure that all training
includes:
1. Lift with the legs,
2. Keep back straight,
3. Hold load close to body,
4. Don’t twist with load,
Project
Manager
and Senior
Safety
Manager
No
3
Work Activity
Hacking of
Ceilings and
walls.
Hazard
Sight Hazard due
to significant
amounts of
flying debris –
High Eye Hazard
operation.
Noise creating a
hearing hazard.
Musculoskeletal
Disorders
including
vibration
injuries.
Workers may be
at risk of
developing a
secondary form
of Reynaud’s
Syndrome or
“Vibration White
Finger” (VWF)
Possible Accident/
Ill Health & Persons
at Risk
Workers assigned to
perform hacking on
both ceilings and
walls.
Workers assigned to
perform hacking on
both ceilings and
walls
Workers operating
hacking tools for
prolonged periods
and/or in awkward
positions.
Existing Risk Control
(if any)
Wearing of safety glasses and/or
other eye face protection as
needed.
Wearing of hearing protection.
Take frequent breaks as needed
to alleviate muscle and joint
fatigue.
Training should include a
discussion on methods of
improving circulation (i.e.
massaging the extremities on
breaks)
Vary work positions during the
day, trade off jobs with other
works.
In addition,
hacking on the
ceiling places
workers at risk
of developing
sprains, strains,
ligament or
other types of
musculoskeletal
disorders.
6
SevErity
3
3
3
Likel
yhood
2
2
2
Risk
Level
6
6
6
5. Inspect planned path first.
Additional Risk Control
Hacking of the ceilings will
place workers at increased
risk due to the fact that they
will be looking up. Chipping
goggles may need to be
supplied in order to avoid
eye injuries. Eyes must be
flushed for 15 minutes to
remove debris.
Single hearing protection
should be adequate. A noise
survey can be requested
from the Safety Office to
rule out potential
requirement four double
protection.
When purchasing new tools
for these types of
operations, ergonomic
support should be one of the
major considerations.
Report all suspected
instances of the
development of Reynaud’s
Syndrome so that they may
be properly investigated.
Action
Officer
Designation
Senior Safety
Manager
Project
Manager
Project
Supervisor
Senior Safety
Manager &
Project
Manager &
Project
Supervisor.
Senior Safety
Manager
Project
Manager
Project
Supervisor
Use of Working
at Height (WHE)
Equipment to
access ceiling
areas when
hacking.
4
5
Ensure
Inspection Is
completed on
any type of WHE
equipment used
during this
phase of work.
Ensure that all
inspections are
documented.
Injury/fatalities from
falls.
Work Activity
Hazard
Debris Removal
– hacked
materials shall
we swept up,
scooped and
place in wheel
barrow(s) for
removal to
debris staging
area.
Musculoskeletal
– from repetitive
bending, lifting
and transporting
of debris.
Possible Accident/
Ill Health & Persons
at Risk
Personnel involved
with debris removal
Cleanup/
Housekeeping
and General
Restoration of
Worksite –
Ensure that the
worksite is
thoroughly
cleaned and
returned to a
condition
supporting
normal
See sections A, B, and D in the
fall protections plan for;
3
3
9
Scaffolds,
WHE &
PFAS and ancillary equipment.
Work above 3 meters requires
that the Project Supervisor
obtain a working at height chit
from the Safety Department.
For use of scaffold she the Fall
Protection Plan on Page 24.
Existing Risk Control
(if any)
Training to cover:
Severity
2
Likel
yhood
2
Risk
Level
4
It is imperative that correct
procedures be used when
working at height. Work
above 1.8 meters (6 feet)
requires the use of personal
fall arrest systems.
Inspections shall include:
1. Harness webbing;
2. Snaps, hooks &
karabiners;
3. D Rings &
4. Buckles and Adjusters
Senior Safety
Manager
Additional Risk Control
Action
Officer
Designation
Senior Safety
Manager
Review good work practices
to be observed when
avoiding these types of
injuries.
Take frequent breaks as needed
to alleviate muscle and joint
fatigue.
Training should include a
discussion on methods of
improving circulation (i.e.
massaging the extremities on
breaks)
Sight Hazard
when conducing
sweeping, high
cleaning, and
general cleaning.
Workers assigned to
complete the
cleanup phase of this
project.
Vary work positions during the
day, trade off jobs with other
works.
Sight Protection – issue to all
PNH workers
Training – All PNH personnel
receive training regarding both
sight conservation and
avoidance of musculoskeletal
injuries.
7
Project
Manager
Project
Supervisor
Project
Manager
Project
Surpervisor
2
2
4
Training for MSDs as
discussed in section 2 above.
Always report any and all
incidences of
musculoskeletal disorders to
the Safety Department and
Project Supervisor.
Project
Manager
and
Supervisor
and Senior
Safety
Manager.
occupancy
Work Activity
(5)
Hazard
Possible Accident/
Ill Health & Persons
at Risk
Existing Risk Control
(if any)
Musculoskeletal
Disorders (MSD)
- when lifting,
carrying, and
otherwise
moving
equipment,
excess materials
and tools from
the worksite
8
Severity
Likel
yhood
Risk
Level
Additional Risk Control
Action
Officer
Designation
QUALIFICATIONS AND POINTS OF CONTACT FOR THIS PROJECT FROM PNH RESOURCES PTE
LTD AND GOODMNAN ENVIRONMENTAL PTE LTD (APPLICABLE MONTH) 2014
Competent/Qualified Personnel: (These should be tailored to fit the project)
Lee Wilson - 8205 8249
QP/ First Aid CPR/ Heat Stress Program/ Respiratory Protection Program/ Hearing/Sight Conservation Program/Training Coordinator
Ms. Thazin Nwe (Jennifer) 8522 6014
HAZMAT Coordinator
Lim Joseph – 9683 7072
CP/ Scaffolds/ Fall Protection
Eng Yong Chye – 9626 9262
PNH Project Manage/CP/ Electrical/ First Aid CPR/Lock Out/Tag Out
Equipment Used :
Hand and Power Tools
First Aid Kit
Eyewash Station
Fire Extinguisher
Inspection Requirements:
Daily inspection of equipment for damage or
leaks before use.
Inspect PPE daily and before use.
Inspect first aid kit at least weekly.
Visual inspection of Fire extinguisher daily.
Daily housekeeping of work areas
Daily site safety inspection by Safety Manager
and project quality control.
9
Training Requirements:
First Aid / CPR
Emergency Telephone Number
Daily / Weekly Safety tool box Meetings and
safety training.