Ram Services Limited Health and Safety Method Statement and Risk Assessment Documentation
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Contract Blackpool Tanks – for KMI
Contract No J- 4302
Document ref 4302/ MS01 Revision status D
Prepared by Name Signed Date
Andrew Murray 13.10.10
Checked by
N K Dymott 13.10.10
Communicated to
Contracts supervisor Paul Haworth
Foreman Darren Jackson
Revised by Date Issued to Details
AM 10.01.11 D Oaks / Site Headwall crack repair added
Paul Haworth 24/02/11 Colin Pratt Pundit Testing
Copied to Date Copied to Date
Colin Pratt 15.10.10
Related documentation (delete or amend as
needed)
� Ram Services Safe Working Guidance Notes
� COSHH Assessments
� Health and Safety Plan - By KMI+
� Site Safety Rules - By KMI+
� Permit to Work - By KMI+
� Material data sheets
Other (Specify)
Ram Services Limited Holyoake House 240-244 Lowerhouse Lane Burnley Lancashire BB12 6NG
Tel 01282 452211 Fax 01282 452244 Email [email protected]
File Master Copy �
Site Master Copy �
Circulation Copy �
Ram Services Limited Health and Safety Method Statement and Risk Assessment Documentation
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1 Work to be undertaken
a. This method statement relates to forming access holes for piling rigs
b. The main work activities to be carried out are as follows;
i. Set up safe system of work and entry to the tank – refer to KMI method statements
ii. Take sample cores and retain for off site testing
iii. Complete leak sealing works to the interconnecting tunnel
iv. Headwall strengthening by installation of steel dowels
v. Initial leak sealing works to perimeter of tank 2
vi. Undertake Pundit Testing to crack around channel and sump area
2 Location(s) of Work to be carried out
a. Under Ground Holding Tanks, KMI Site, Seasiders Way, Blackpool, Lancashire
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3 Responsibility
a. Overall responsibility for the implementation of this procedure rests with the Foreman (named above) in charge on site
b. The foreman concerned should ensure that all team members, sub-contractors and other relevant parties are fully briefed on the content of this and other related documentation.
Details of all such briefings should be recorded on the form provided with this document.
4 Contact details
Ram Services Limited
Head Office Tel 01282 452211
Fax 01282 452244
Email [email protected]
Contracts Manager – Andrew Murray Tel 07808 365 991
Contracts Supervisor – Paul Haworth Tel 07802 554 579
Ste Foreman – Darren Jackson Mob 07411 823 916
Client KMI+
PO Box 518
Brunswick House
Hindley Green Business Park
Leigh Road
Hindley Green
Wigan
WN1 9AR
Tel 01942 763700
Email [email protected]
Site Contact – Colin Pratt Mobile 07872 401 845
5 Supervision
a. Work will be supervised on site by the foreman in charge
b. Additional supervision will be undertaken by a visiting contracts supervisor, normally on a daily basis, dependent on work activities
6 First Aid
a. Nominated first aiders are as follows
i. All Ram Services Operatives are First Aid Trained
7 Training Certification
a. Relevant employee training certification is attached herewith and/or will be held by the person in charge on site Training requirements are
i. CSCS Cards
ii. Confined Spaces Working Training Certification
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8 Programme
a. Start date 18th October 2010. See programme BB attached or any revisions circulated to the site
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Method Statement and Risk Assessment Documentation
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9
Risk Assessment
Ref
Hazard
Persons at
risk
P S R
Control measure
P
S R Link
1
Unfamiliar working environment
2 3 6
All operatives working on site shall receive site
induction training administered by KMI +
All operatives will be briefed upon and understand
the contents of this Risk Assessment and Method
Statement before any work is undertaken. Ensure
you have signed the record sheet to the back of this
document.
1
3 3
2
Construction operations
2 3 6
All Ram Services operatives shall wear as standard
the following personal protective equipment hard
hat, reflective vests and safety boots. Other types
of safety equipment will be worn as deemed
necessary by COSHH assessment and for
individual work activities that will be undertaken.
Operatives involved with drilling and coring
operations will be required to wear adequate
hearing protection and eye protection. Gloves will
be worn at all times.
1
3 3
3
Use of small electrical plant
2 3 6
All plant and equipment shall be suitable for
purpose, checked and maintained in accordance
with current good practise. All electrical small
tools shall operate at 110V CTE, and have current
PAT certification.
Plant shall only be operated by experienced
operatives who are competent to do so. No plant
should be left to operate unattended at any time
1
3 3
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and should be placed away in the works stores or
van when the plant is no longer being used.
All fuelled plant will have drip trays placed
beneath them to catch any fuel drips or spillages.
4
Manual Handling
Operatives
3 3 9
Care should be taken when carrying heavy
materials, especially over uneven ground. Only
handle what you feel comfortable doing so.
In particular care should be taken when lifting
equipment or materials from the van, use two
people and employ good lifting techniques.
Task – The task of drilling cores does involve
manual handling of the equipment.
Individual Capabilities. – No operatives on this
contract have reported any difficulties in lifting or
handling.
Load. – The equipment will be placed into the tank
and waste will be removed using a crane.
Environment – The environment where the works
will be undertaken is solid under foot, although the
environment will be poorly lit and on an incline.
All carrying or lifting of materials will be done on
solid ground.
1
3 3
5
Slips, trips and falls
Operatives
2
3
6
Be aware when routing cables to route them in
such a way as not to cause a trip hazard.
Any debris found which may cause a hazard
should be removed or if it cannot be removed
should be marked so it is clear to everyone where
the hazard is.
1
3
3
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6
Use of vibrating tools
Operatives
3 3 9
Refer to Ram Services HAVS policy document.
Complete HAVS records daily and return sheets to
the office on a weekly basis.
1
3 3
7
High Noise levels
Operatives
3 3 9
Works which will be undertaken may produce high
levels of noise, all operatives within the work area
will wear hearing protection at all times.
Warnings to other people entering the work area
will be posted giving warning that ear protection
must be worn.
1
3 3
8
Housekeeping
Operatives
Other trades
2 2 4
Bad housekeeping resulting in an untidy work area
not only looks unprofessional but also can cause
injury to yourselves and others around you.
Clear materials and plant away when not in use.
All debris arising from the works will be removed
from the tank by crane, supervised by KMI+. Stack
waste and cores into appropriate skips or bag up in
rubble sacks and stacked neatly in a safe place.
All cables and hoses will routed as to not cause trip
hazards.
1
2 2
9
Area of work
Other trades 3 3 9
Any other contractors working in the tanks must be
protected from our works.
1
3 3
10
Working in a confined space
Operatives
4 4 16 The vessel in which the works will take place is a
closed tank, below ground. Therefore the tank is
classed as a confined space.
All operatives entering the tank will be confined
space trained, hold current certification and be
1
4 4
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competent to work in a confined space.
Before works commence a gas monitor will be
lowered down into the tank on a rope and a sample
of the atmosphere taken as is good practice, once
the atmosphere is deemed safe then the works may
commence, one operative will record gas levels at
regular intervals and be aware of any changes.
A top man will be in attendance at all times and
will be in contact with the operatives in the tank at
all times.
Access and egress to the tank will by means of a
crane and man-rider and the work team will be in
constant communication with the crane operator at
all times.
A gas monitor will remain in the man rider and
with the working party at all times.
In the event of an alarm REMEMBER –
MONITORS ALARM AT SAFE LEVELS. Don
escape sets and evacuate the area, in a safe and
calm manner via the man rider. The capacity of the
man rider will be sufficient for the number of
people in the tank and the bottom man will
supervise the evacuation. All operatives will be
issued with 30 minute re breather escape sets
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11
Working at height
4 4 12 Access to the work area will be by way of a man
rider an appointed person must supervise all lifting
operations.
When working in man-rider all operatives will
wear a harness and short lanyard and be attached to
the anchor points of the man-rider at all times.
Harnesses will have been inspected in the last 6
months and be fit for purpose.
All current certification for all lifting equipment
being used will be available on site for inspection.
As all the equipment is being used for lifting
people, therefore it should have been tested within
the last six months, as per Lifting Operations and
Lifting Equipment Regulations 1998.
Whilst in the man rider operatives should never
attempt to climb on the sides of the man rider or
stand on anything, which renders the handrail,
guard ineffective.
In case of crane malfunction the operatives will be
lowered to the tank floor, where a standby crane
will attach to the man rider.
Lifting operations will be supervised by the
Appointed Person (Lifting Operations) supplied by
KMI+
1
4 4
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12
Use of PPE
Operatives
2 2 4
Operatives are responsible for the care and use of
all PPE as issued. When replacements are required
it will be issued free of charge by Ram Services.
All items of PPE will be issued to current
standards, particularly as below
• Eye Protection to BS EN 166
• Hearing Protection to BS EN 352
• Hand Protection to BS EN 388 or 374
• Respiratory protection to BS EN 140 c/w
particle filter
In addition all operatives entering the tank will
wear long sleeved overalls and harnesses.
Harnesses are inspected at minimum 6 monthly
intervals and records kept at the Burnley office
1
2 2
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Explanatory notes on risk classification
Risk is the likelihood of potential harm from a hazard being realised. The extent of risk will depend on;
� The likelihood/probability of that harm occurring
� The potential severity of that harm ie of any resultant injury or adverse health effect
� The population which might be affected by the hazard ie the number of people who might be exposed
The risk assessment should be reviewed if there is reason to suspect that they are no longer valid or there has been significant change in the matters to which they relate.
Probability that harm will occur * Potential severity of harm *
0 Almost impossible Probability close to zero 0 No harm No injury, damage, sickness or other
loss
1 Extremely unlikely Highly improbable, never known
to occur 1 Minor harm
Minor injury with short term effect,
minor damage or loss
2 Unlikely Improbable, remote chance 2 Moderate harm Lost time injury or illness, moderate damage or loss
3 Likely Possible, has happened occasionally
3 Serious harm Over 3 day injury or illness, substantial damage or loss
4 Extremely likely Probable, commonly occurs 4 Major harm Major injury, major damage or loss
5 Almost certain Inevitable, definite, continually occurs
5 Catastrophic harm Fatality (inc to public) or disabling illness, catastrophic damage or loss
Risk classification and required action;
Probability (P) * Severity (S) *
0 1 2 3 4 5
No harm Minor harm Moderate
harm
Serious harm Major harm Catastrophic
harm
0 Almost impossible - - - - - -
1 Extremely unlikely - 1 2 3 4 5
2 Unlikely - 2 4 6 8 10
3 Likely - 3 6 9 12 15
4 Extremely likely - 4 8 12 16 20
5 Almost certain24 - 5 10 15 20 25
Risk rating/classification
0 – 1 Low No action required
5 – 6 Low Maintain control measures to ensure as reasonably practicable the control of residual risk
8 – 16 Medium Apply control measures to reduce risk rating to a level as low as reasonably practicable
20 – 25 High activity not permitted – hazard to be avoided or risk considerably reduced
10 Resources
a. Labour
i. Working Drilling Foreman
ii. 4 -5 other drilling operatives
Linked information to be considered in conjunction with this document
D Drawing / sketch M Method statement P Safe Working Procedure
G Published guidance F Health and Safety Plan O Other
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b. Materials
i. None
c. Plant
i. Drilling Rigs 4 No
ii. Extension Rods
iii. Core Bits 45 dia, Core Bits 100mm dia. Core bits 40mm
iv. Automatic motor drivers.
v. Head Coupling
vi. 5 x 3 phase generators and distribution boards
vii. Leads 16amp and 32amp
viii. Small tools
d. Sub-contractors
i. Testconsult Ltd – Pull out testing.
ii. Barry Green Associates
11 Method Statements
a. Method 1 - Access
i. Attend site safety induction administered by KMI+. Before any works commence
ensure that all operatives have read and understood this document and signed up
to the register.
ii. Permit to work in confined spaces must be issued by the client before works may commence.
iii. Familiarise ones self with the works to be undertaken and set up work area for generators on drip trays.
iv. Liase with the lift supervisor and the crane operator to establish safe system of works, communication and emergency procedures. A top man will be in attendance to record
entrants into the confined space and deal with any emergencies. If you need to leave the
tank for any emergency sound air horn. Ensure that it is clear with all concerned that
it is agreed what will happen in the event of an incident.
v. Lower gas monitor into tank and use peak reading setting to obtain and record readings of the atmosphere leave in whilst preparing materials. When gas levels are checked
and deemed safe works may commence.
vi. Load equipment into man rider with, PPE, Gas Monitor, Escape Sets and all necessary tools. Operatives will wear harnesses with lanyards and attach to anchor points of
the man rider.
vii. Power supplies for plant within the chamber will be via 3-phase armoured cable from generators set at the surface. Connect cables on the tank floor and use whip check leads
to reinforce the connections. Cables to be firmly secured and fixed at the surface.
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viii. Cooling water hoses will be single length or with joints supported as above.
ix. Use crane with nylon straps to raise the cables end and secure to eyebolt fixed to the floor adjacent to the generator.
x. Generators to be fixed to earthing point driven into or set into the ground.
b. Method 2 – Test Cores Tanks 1 and 2 Refer to drawing 2/12/2001 & 2/12/301
i. Set up drilling rig from scaffold access to both headwalls of the interconnecting tunnel. Access will be via scaffold and position of cores to be agreed with the engineer.
Drilling rigs to be fixed to the concrete wall face with expanding anchored or 12mm
nuggets. On completion fixings will be removed or driven to below 25mm from the
surface and holes repaired with Flexcrete Fastfill repair mortar
ii. Core 100 diameter to 850mm deep and retain cores for off site testing
iii. When the cores are drilled using the point of a chisel on a breaker roughen up the sides
of the core holes to give a key to repair material. Pack the hole with Flexcrete Fastfill
repair mortar packed firmly into the holes.
iv. Repeat to the floor / wall interface in tank 2 at 4 No locations as directed by the engineer. The cores to be drilled at 45 to intersect the diaphragm wall and recover
samples of the compressible joint filler. Bag samples for subsequent inspection.
v. Holes to be filled as previously [confirm on site whether the core hole can be used for resin injection works before filling]
vi. Refer to drawing showing detail of 100mm section to be cut out to reveal corrosion of reinforcement. When exposed the detail is to be recorded and photographed before
filling back with repair mortar.
c. Method 3 – Headwall Leak Sealing Works Refer to drawing 2/12/3001
i. Set up works from scaffold access to both headwalls and access the interconnecting tunnel via dedicated platforms.
ii. Core 45mm dia pilot holes to monitor seepage through the 8000 thickness of the headwall See drawing [it will be possible to set out the pilot holes to coincide with the
headwall strengthening works and utilise the holes for subsequent works]
iii. Access the tunnel opening and set out the 2 rings of grouting holes at 1175mm and 1925mm from the opening. Set out 12 injection points around each ring, nominally
410mm centres, Drill 15mm dia holes to minimum 350mm to the outside of the
concrete pipe.
iv. Fix non-return injection packers and set up manual resin pump. Install TamPur 130 until refusal or resin is witnessed at adjacent holes.
v. When complete remove packers and the holes are to be filled with plugging mortar to
finish flush to adjacent surfaces.
vi. Repeat to each end of the interconnecting pipe.
vii. Note: All materials used to be recorded on daily allocation sheets
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d. Method 4 – Headwall Strengthening Works Refer to drawing 2/12/3002A
i. Set up works from scaffold access to both headwalls via dedicated scaffold platforms.
ii. Set out hole pattern as shown on drawing. Note the works to tank 1 and tank 2 have different layouts,
iii. Core 45mm dia holes, at slightly inclined angle to assist removing drilling slurry. Holes to be cored to a depth of 1625mm deep. Flush out holes with clean water via 110v
electric pump
iv. Use machine wire brushing extension fitted to rotary drill to clean out and roughen the surface of the holes. Remove dust debris with manual blow out pump, from the back of
the hole, until the air is noticeably clean.
v. Load Hilti Hit RE-500 into dispenser with extension tube and flange plate and use pneumatic dispenser to install anchor resin into the rear of the hole. Fill to
approximately 2/3 full, drawing the nozzle forward slowly. De pressurise the container
to avoid waste of material.
vi. Place reinforcement bar and drive into the hole and recess to ensure 50mm cover to the bar end. Allow to cure and fill the end of the hole with repair mortar.
vii. Note: One location in the diaphragm wall will to be left open for subsequent pull out testing. The test bar will be shorter and threaded for pull out testing equipment. Testing
to be undertaken by Test Consult Ltd.
viii. Note: All materials used to be recorded on daily allocation sheets
e. Method 4 – Tank 2 Base slab Leak Sealing Refer to drawing 2/12/3002A
i. Complete cover meter survey to identify the largest and closest reinforcing bars. Paint mark the steel where identified. Set out holes at 500- 750 centres avoiding the biggest
concentration of steel.
f. Method 5 – Crack in Headwall
i. Ensure safe access to the headwall as described above and
safe provision of 110v power
ii. Mark straight lines either side of the concrete crack at approx.
50mm apart.
iii. Use 110v cutting equipment to cut a dovetailed joint to minimum 40mm deep.
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iv. Use110v breaker to remove the concrete within the new joint, maintaining the dovetail profile
v. .
vi. Stem leaks with plugging mortar and fill back to original line and level with Fastfill repair mortar.
vii. Drill 15mm dia holes to minimum at 45° at 150mm from the repair to intersect the crack at 150mm from the face.
viii. Fix non-return injection packers and set up manual resin pump. Install TamPur 130 until refusal or resin is witnessed at adjacent holes.
ix. When complete remove packers and the holes are to be filled with plugging mortar to
finish flush to adjacent surfaces.
g. Method 6 - Stage One Leak Sealing
i. Use angle finder to ensure rigs are secured in place. Fit 42mm coring bits 750 long and automatic motor drivers. Drill the 750mm core and change to 100 long core bit with
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500mm extension rod. Core to depth of approximately 1700mm until the interface is
apparent.
ii. Fix packer with non-return valve into the hole to prevent water escaping from the hole and to enable subsequent resin injection.
iii. Commence resin injection from the obviously wet areas, as below the headwall and hole centres here should be at 750mm, as leak paths are obvious. When drilling in the
drier areas the centres are to be closed up to approx 500mm and leak paths confirmed
by injection of tracing dye.
iv. Continue to complete a section of the tank perimeter prior to resin injection.
v. Use single piston pneumatic pump to inject water with drain tracing dye into each packer position. Record areas where dye is evident in adjacent packers, or the floor
/wall joint.
vi. Resin injection. Material to be stored for 24 hours within the tank before use.
vii. Re-fix the non-return injection packers and set up twin component manual resin pump. Compressor to be sited on top of the tank and all hoses lowered into the tank will have
connections supported by whip check connectors. Install TamPur 125 at 1:1 ratio until
refusal or resin is witnessed at adjacent holes. Limit material use to maximum of 20kg
per packer.
viii. When complete remove packers and drill out resin material to minimum depth of 500m.
The holes are then to be filled with cementitious repair mortar to finish flush to adjacent
surfaces.
ix. Note: All materials used to be recorded on daily allocation sheets
h. Method 7
i. Identify cracked areas.
ii. Undertake Pundit Testing and record readings.
iii. Compile results and provide report for the client off site.
12 Third Party Considerations
a. Liase with other contractors working in the area.
13 Interface with others
a. All setting out will be confirmed by KMI+.
14 Monitoring requirements
a. Compliance with this method statement and general health and safety requirements will be monitored through site safety audits carried out routinely by Ram Services management or
their appointed health and safety representatives
b. Issues raised by such checks will be discussed with the site foreman and any corrective action implemented accordingly
c. Safety audit check findings should be recorded on the form provided for subsequent review
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15 Emergency Procedures
a. Refer to site induction training and KMI+ method statements
b. In case of minor injury seek out treatment from site first aider, if it is thought that casualty treatment is needed the details of the nearest hospital is listed below
c. In case of serious injury or emergency Summon emergency services (999) stating nature of emergency, working environment (e.g. confined space, on elevated scaffold etc) number
and details of casualties and location
Site location - Under Ground Holding Tanks, KMI Site, Seasiders Way, Blackpool, Lancashire
Nearest hospital is at: Blackpool Victoria, 352 Lytham Road, Blackpool, FY4 1DW
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Work Completion and Quality Handover Certificate
Contract Name and Job No
Client
Site Location
Location Works undertaken Completed
OK
Date
Site cleared and left clean and tidy on completion
Outstanding issues to be addressed (snagging)
This is to certify that all work covered by this method statement document has been completed in accordance with the
requirements detailed therein and to the clients satisfaction.
Job completed by (foreman)
Signed (foreman) Date
Job accepted by (client rep)
Signed (client rep) Date
Job completion reviewed by (Ram manager)
Signed (Ram manager) Date
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Site Briefing Record
Contract Subject � Site induction
KMI+ Blackpool Tanks RA/MS � Tool box talk
Contract No Documentation Ref � Method statement/risk assessment
J-4302 � COSHH assessment
Start date 01/03/10 � Other (specify)
Date Name Signature Briefing by