Ram Services Limited Health and Safety Method Statement ... · Method Statement and Risk Assessment Documentation L: ... of this Risk Assessment and Method Statement before any work

Ram Services Limited Health and Safety Method Statement and Risk Assessment Documentation

L:\Completed contracts\J4301 - J4400\J-4302 KMI Bloomfield Road Tanks\MS01- Rev D.doc Page 1 of 19

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 �



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



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



8 Programme

a. Start date 18th October 2010. See programme BB attached or any revisions circulated to the site

Ram Services Lim

ited

Health and Safety

Method Statement and Risk Assessment Documentation

L:\Completed contracts\J4301 - J4400\J-4302 KMI Bloomfield Road Tanks\MS01- Rev D.doc

Page 5 of 19

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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Health and Safety



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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

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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



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



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.



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



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.



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



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



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



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



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

Documents

Ram Services Limited Health and Safety Method Statement ... · Method Statement and Risk Assessment Documentation L: ... of this Risk Assessment and Method Statement before any work