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KARARA MINING LTD

Karara Mining Limited Barricades and Barriers Standard

Document ID: CORP-HS-STD-1020 Revision ID: 0 Revision Date: 23-Jun-15

Information Sensitivity: Business

© 2012 by Karara Mining Limited

This document contains proprietary information of Karara Mining Limited. Any use of this document without

express, prior, written permission from Karara Mining Limited and/or its affiliates is prohibited

KARARA MINING LTD

KARARA MINING LIMITED BARRICADES AND BARRIERS STANDARD

"This document has been prepared by Karara Mining Limited for exclusive use on the Karara Iron Ore Project ("the Purpose"). Use of this document other than for the Purpose is not permitted."

CORP-HS-STD-1020 - KARARA MINING LIMITED

KML DATE ORIG REVIEW DESCRIPTION REV APPROVAL

4-Jun-09 JL DT PM Issued for use 0 P McBain J Lee D Tancred

SC 29-Jul-09 BM Re-issused for use JL 1 S Campbell J Lee B McLernon

KC 5-Jan-11 EH JL Re-issused for use 2 K Coupar E Hewitt J Lee

22-May-12 Re-issued for use 3 S Campbell irian J Body

1 23-Jun-15 Re-issued for use 4 ( G Parian ..Griggs Duke

CORP-HS-STD-1020 Page 2

Rev 4 Re-issused for use

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CONTENTS PURPOSE 5

1.1 Revision Amendments 5

SCOPE 6

DEFINITIONS 7

RESPONSIBILITIES 10

REQUIREMENTS 11 5.

5.1 Identification of Barricade and Barrier Requirements 11

12 5.2 Permit to Work

5.3 Risk / Hazard Analysis

5.4 Selection of Barricading...

5.5 installation of Barricading

5.6 Information Tags

5.7 Signage

12

12

13

13

14

5.8 Lighting

5.9 Inspection

5.10 Environmental Avoidance Sites

14

14

14

ADDITIONAL REQUIREMENTS 15 6.

6.1 Selection and Use of Barricades 15

6.2 Specific Situations Requiring Barricades

6.3 Types of Barriers

15

16

6.4 Exclusion Zones 16

6.5 Responsibility for Barriers and Barricades

6.6 Removal

17

17

REFERENCES 18

7.1 Supporting Documents 18



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Appendices

APPENDIX 1- GUIDELINES FOR BARRICADING

APPENDIX 2- TYPES OF BARRICADES AND BARRIERS



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PURPOSE

The purpose of this procedure is to define the minimum Health and Safety requirements relating to the use of Barricades and Barriers at all Karara Mining Limited sites.

1.1 Revision Amendments

For section 6.4 - Exclusion Zone 'Short Term exclusion zones and Long Term exclusion zones' have been removed.

Appendix 2 has changes in regards to Commissioning Flagging and Tape.

Bunting and Flagging requirements for pedestrian walkways.

Page 5 CORP-HS-STD-1020


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SCOPE

This Standard applies to all Karara Iron Ore Project (KIOP) participants. The Contractor is responsible for the development and implementation of an approved KML specific Barricades and Barriers Procedure which shall satisfy the requirements outlined in this Standard.

This Standard does not address barricades or barriers that may be required for security management reasons.

This Standard does not address design of permanent barricades or barriers that are integral to plant or Site operation - as distinct from Site activities.



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DEFINITIONS

Barricade As defined in the Occupational Health and Safety Regulation (1996) a barricade is a temporary fence consisting of rigid vertical and horizontal members.

In this Procedure it is additionally a solid barrier, such as a guard rail, capable of withstanding a force of 550 N acting outward or downward at any point on the top rail, edge or support post, or a force of 350 N per linear metre acting outward or downward on the top rail or edge of any guard rail, that is placed around a floor hole or floor opening to keep persons from walking into a hole or opening during any time the hole or opening cover must be removed.

Barrier A method or something that prevents or controls movement across or beyond, or from one place to another. May be an enclosure.

Fencing A 1.8 metre high link mesh is an acceptable alternative to a hoarding if the only requirement is to secure the site from members of the public. The fence should be erected to all elevations of the Site.

Hoarding A hoarding is defined in the OH&S Regulations (1996) as 'a substantial and fully sheeted fence or screen', while a barricade is defined as a 'temporary fence consisting of rigid vertical and horizontal members'.

Job Hazard Analysis (JHA) A process used to identify hazards associated with a job or task or scope of work, evaluate the risk associated with each hazard, and determine appropriate risk controls strategies. A hazard management tool undertaken on the day, by the work team, for the task at hand is prepared under OH&S Regulation (1996) Section 3.143.


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Karara Mining Limited KML

To have permission or to be possible. Also indicates a probable intention

May

Expressing negation, denial, refusal or prohibition of an idea

May not

The Occupational Health and Safety Regulations (1996) outlines the minimum Health and Safety requirements:

OH&S Regulations

• Regulations have the effect of spelling out the specific requirements of the legislation.

• Regulations may prescribe minimum standards. They may have a general application or they may define specific requirements related to a particular hazard or a particular type of work.

Regulations may also be for the licensing or granting of approvals, certificates, etc.

Any person engaged to carry out work or is involved with work carried out on the Karara Mining Limited sites.

Participants

The Karara Iron Ore Project (KIOP). Project

To be considered as part of the documented, local risk assessment process.

Recommended

Mandatory minimum to be achieved. Requirement

Risk Assessment A Risk Assessment is used to mean the overall process of estimating the magnitude of the risk and deciding what actions will be taken (as defined in AS/NZS 4801). A formal analysis of the likelihood and impact of potential incidents and the means to prevent or minimise their occurrence or consequences.



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Scaffold As defined in the AS/NZS 4576:1995 a scaffold is a temporary structure for supporting access platforms or working platforms.

Shall A mandatory requirement. Exceptions to this requirement need the endorsement of the KML OSH Manager and the approval of the KML General Manager.

Shall not Expressing a negative intention or a 'No' in reference to some event or situation occurring.

Should The word "should" indicates that the primary intention is to comply with the full requirements as if they were mandatory. However, there will be circumstances where local conditions may demonstrate that the requirement is either not applicable or an alternative approach is necessary. In cases where "should" has been used in a requirement, variation can only be considered as compliance if the most Senior Manager on Site approves it based on an evaluation of the risk. The risk management approach adopted must be consistent with KML requirements and follow the Hierarchy of Controls.

Should not Indicates advisability or a 'No' in reference to an event or situation occurring.



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RESPONSIBILITIES

All KML Project participants are responsible for the application of, and compliance with, this Standard at work locations where they have operational responsibilities. KML will monitor and assess compliance with the Contractor's Project specific Procedure to verify and evaluate the Contractor's performance against the requirements outlined in this Standard and their own procedures.

Contractors are responsible for the development and implementation of an approved Project specific Barricades and Barriers Procedure which satisfies the requirements of this Standard. Contractors are responsible to ensure that their personnel and their subcontractor's personnel comply with this Standard, Contractor's procedures and other KML Procedures.

All Supervisors are responsible for the day to day application of this Standard.

All Project participants have a responsibility to comply with this Standard.

All Project participants have a duty of care, to their work team and others in relation to the application and maintenance of this standard, for work they, their work team or others undertake.



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REQUIREMENTS 5 •

Identification of Barricade and Barrier Requirements 5.1

Barricades and Barriers shall be in place where required by Risk Assessments or methods of work and include but not limited to such works as civil installation works, excavations, explosive powered tool use, demolition, hazardous installation works, commissioning and start-up etc.

All temporary hazards in areas where people, including visitors, members of the public and mobile equipment may enter shall be appropriately barricaded.

Use of barricades and barriers shall comply with Work Permit requirements.

Site activity planning shall include identification of such requirements, utilising Risk Assessment outcomes (controls identification) and activity execution plans. Specialist advice may be required for certain types of barricades or barriers that are outside normal Contractor's experience (e.g. an asbestos enclosure). This shall be highlighted in Project specific procedures, and may be provided by specialist contractors.

State Regulatory requirements may also apply and shall be checked and complied with (also see section 6.3).

Barricades and barriers are required for (but are not limited to);

a) Segregation of personnel from operating equipment (cranes, forklifts, etc).

b) Segregation of operating equipment from operating plant, including high voltage power lines, excavations, mines.

c) Prevention of access to potentially unsafe areas (high voltage, rotating equipment etc).

d) Proximity to high temperature or pressure or high voltage.

e) Traffic management and segregation.

f) Containment of dust or particulate substances in the atmosphere (e.g. spray paint, sand blasting dust, asbestos etc.).

g) Falling into open penetrations/cavities/man-holes/where grating or decking has been removed etc.

h) Prevention of access to decommissioned facilities, walkways, lifts etc.

i) Prevention of access to non-authorised personnel (as controlled by permit to work - not security) including during non-work hours.



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Segregation from discharges from use, storage or transport of hazardous materials.

Prevention of falling: from elevated work areas, or into water.

Maintaining a controlled condition to allow certain work to take place (e.g. wind breaks, tents or work covers for electrical work, welding).

Segregation of installation personnel from commissioning and start-up activities.

j)

k)

I)

m)

These physical barricades and barriers shall be specified together with required signage and appropriate lighting to ensure effective hazard management 24 hrs per day. In locations where visibility may be impaired (e.g. extreme weather) and at night, consideration shall be given to additional barricade or barrier warning such as general lighting, audible alarms, flashing lights etc.

5.2 Permit to Work

Barricades and/or barriers shall be included as appropriate as controls in work planning for activities controlled under a permit to work. Refer KML Permit to Work Procedure ('CORP-HS-PRO-1016).

Risk I Hazard Analysis 5.3

During specific task planning, where a Job Hazard Analysis (JHA) is used, due consideration must be given to inclusion of barricades and barriers as hazard controls where not already dictated by the work planning or specific site procedures already written or established.

5.4 Selection of Barricading

Barricading methods shall deter entry of unauthorised personnel into a designated Hazardous work area. Selection of barriers shall be in accordance with the hazard being isolated and could range from a temporary, flagging, tape, rail/pipe "fence" to water-filled "blocks" to semi-permanent perimeter fence with locked gate access (also see Appendix 2).

After a Risk Assessment has been completed and where the hazard is expected to exist for less than one (1) day, the barricade may consist of a visual warning and demarcation. Personnel may enter these areas if they have a valid need and have identified and understood the nature of the hazard.

Where the hazard will exist for more than one (1) day, the barricade shall provide a physical barrier as well as a visual warning. Personnel shall not enter these areas unless they are specifically working in the hazard zone (e.g. within a trench).



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Specific requirements include:

• Barricading that is self-supporting shall be provided where a person can fall one (1) metre or more into a trench, excavation or the like.

• Barricading shall be provided around such areas where there is a risk to the health and safety of persons on a Project, e.g. under scaffold erection or dismantle. Barricading can be used as a temporary measure in place of hoarding for such periods as they are adequate.

• High-pressure warning signs and danger tape shall be placed on the barricade at any access points when under pressure test to warn personnel to stay clear of the test areas. Only personnel directly associated with the test are permitted to work in the test areas

• Equipment and Systems that are in a transition phase from a static state to an energised state

Note: Bunting, flagging, plastic tapes are visual warning and do not constitute as a barricade.

Installation of Barricading 5.5

Unless the State's regulations specify a more stringent requirement barricading shall be installed at least one (1) metre beyond the edge of penetrations and least one (1) metre beyond the hazardous zones:

• The barricading needs to be erected and signage installed.

Information Tags 5.6

All safety barriers shall have prominently displayed signage that clearly communicates:

• The hazard (the purpose of the barricade).

• The date of erection.

• The responsible Supervisor's name and telephone number of who erected the safety barrier plus the contracting company's name.

• Any other information required to enter the area safely.

• Personnel who require access to the barricaded area shall seek permission of the person responsible for the barricade, prior to entry. If permission is not given personnel shall not enter.



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5.7 Signage

Warning signs are integral to barricade and barrier use. Warning signs and barricades shall be periodically inspected to ensure they are clean and in the correct position. Signage shall comply with AS 1319.

Warning signs and barricades shall be updated as hazards change

Removal of warning signs and barricades shall only be permitted when the hazards are eliminated.

5.8 Lighting

Temporary well lit flood lighting on an uninterruptible power supply is to be installed and to be automatically activated upon dusk if work or general access around the restricted area is required after normal daylight hours.

5.9 Inspection

Barriers and barricades erected for an extended period of time shall be inspected regularly by the responsible Contractor for the Contractor's area. The Contractor shall ensure the integrity of the barrier or barricade, that it is fit-for-purpose (or still required) and signage and warning tags are still in place, readable and appropriate. Inspections will be undertaken by the KML Representatives to ensure compliance with this Standard.

5.10 Environmental Avoidance Sites

Environmental avoidance sites in the field that are either (a) within approved clearing areas or (b) within 10 metres of the boundary of a clearing. The area will be barricaded with continuous orange bunting. This bunting shall have an information tags attached at approximately 50 metre intervals. In addition the following coloured flagging tape will be attached with the information tags:

• Aboriginal Heritage Avoidance Sites: Pink and Black striped flagging tape

• Flora Avoidance Sites: Red and White striped flagging tape

• Fauna Avoidance Sites: Red and White striped flagging tape

Further details are available in Environmental Procedure - KML Approvals Requests and Ground Disturbance (CORP-EN-PRO-1004).



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ADDITIONAL REQUIREMENTS

Selection and Use of Barricades 6.1

When selecting the type of barricade, the following factors shall be considered (but is not limited to):

• Risk created by the hazard.

• Familiarity with the hazard.

• Visibility of the hazard.

• The amount of clearance from the hazard.

The Guidelines for Barricading (See Appendix 1) provides a guide to the selection of barricades according to the level of risk presented by a hazard or to restrict access. For most applications, bunting may be used for restricted access or for temporary hazards of low risk. Longer term, high-risk hazards require hard barricading (See Appendix 2).

Specific Situations Requiring Barricades 6.2

The following situations should always be hard barricaded (e.g. barrier boards, concrete or water filled barriers, timber or scaffold fencing etc.):

a) All trenches (excluding those where barricading is impractical and the risk is proven to be non-existent).

b) Excavations.

c) Open sides of all floors.

d) Floor openings.

e) Stairwells.

f) Roofs.

g) Platforms.

h) Walkways from which a person can fall from any height and sustain an injury.

For other cases (e.g. a shallow trench or footing) the consequences of the fall, regardless of the height, shall be taken into account when deciding the appropriate barricading to use. Wind rows



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constructed from spoil from the excavation may suffice as a hard barricade provided warning is supplemented by the appropriate barricade as indicated in the matrix.

Minimum requirements for the erection of barricades as follows (but are not limited to):

a) Not less than one (1) metre from the hazard,

b) Height of barricade to be one (1) metre minimum.

c) Earth windrows of one (1) metre can be used in low access areas with the written approval of the KML Registered Manager (or his nominee).

d) Caps must be fitted to all star pickets or stakes.

e) Yellow flashing lights in darkness or high wind/dust conditions.

f) Appropriate signage maintained in a legible state at all times.

g) Illumination to be provided as for all traffic areas.

h) Information tag required and maintained in a legible format at all times (see section 5.6).

6.3 Types of Barriers

Basic types of barriers shall comply with (but are not limited to) the following:

• Barricade (OH&S Regulation 3.75).

• Hoarding (OH&S Regulation 3.75).

• Scaffold (OH&S Regulation 3.67).

• Gantry (OH&S Regulation 3.76 and 3.77).

• Fencing.

Colour coding of barricades shall be aligned with Appendix 2 of this Standard.

6.4 Exclusion Zones

Exclusion zones shall be established under work at heights and under load arcs of cranes to prevent objects falling on persons below. As a rule of thumb, exclusion zones shall be the distance between an angle of 70° from horizontal to the highest point at which work is being done. Where this is impractical, two (2) metres is minimum standard. There shall be no access to exclusion zones under any circumstances (unless authorised by a responsible person).

Refer section 5.4 as to barricading selection and requirements.



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6.5 Responsibility for Barriers and Barricades

Responsibility for establishing and maintaining barricades:

• Any person who creates or is about to create a hazard.

• Any person that removes a barricade must re-establish it immediately.

• Contractors shall maintain barricades continuously until the hazard has been eliminated.

• All barricades shall be checked prior to the end of each shift.

Contractors must ensure that their barricades and barriers are removed once the hazard has been removed.

6.6 Removal

Barricades shall be removed immediately after the work is complete or the hazard no longer exists. If barricading impedes the safe placement or removal of materials from the barricaded area, a suitable amount of barricade shall be removed, following an assessment and reduction of any potential risks e.g. Warning signs or sentries. Barricades shall be replaced immediately on completion of such work.



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REFERENCES

• AS 1319: Safety signs for the occupational environment

• AS/NZS 4576 Guidelines for scaffolding

• Occupational Safety and Health Act (1984)

• Occupational Safety and Health Regulations (1996)

• WorkSafe WA Code of Practice: Excavations (2005)

7.1 Supporting Documents

• CORP-EN-PRO-1004: KML Approvals Requests and Ground Disturbance Procedure

• CORP-HS-FRM-1062: KML Job Hazard Analysis Form

• CORP-HS-PLN-1001: KML Occupational Health and Safety Management Plan

• CORP-HS-PRO-1020: KML Job Hazard Analysis Procedure



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Appendix 1- Guidelines for Barricading

Appendix 1 CORP-HS-STD-1020 : Rev 4: Issued for use : 23-Jun-15

KARARA MINING LTD


LEGEND HAZARD WARNING PROTECTIVE^ ffi D5 / S Preferred Application

V Acceptable Alternative

** - Magenta & Yellow tape supplemented by Radiation warning signs

# - Welding screens

* - An alternative for use within Sub Stations etc may be plastic cones and chain. Barriers must be supplemented by signage

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z Accident Location O i-< o V* vv Commissioning Q! Q. < • • • • • • Electricity O Q a: • • • •• • Excavations 5 < X

•• Falls (general) ss \-

2 H Men working above &

load Arcs • O

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• • Welding/Hot work

sv** s V Radiation (ionising)

Appendix 1 CORP-HS-STD-1020 ; Rev 4: Issued for use : 23-Jun-15

KARARA MINING LTD


LEGEND PROTECTIVE WARNING HAZARD 01 O) ^ S Preferred Application

•s Acceptable Alternative

** - Magenta & Yellow tape supplemented by Radiation warning signs

# - Welding screens

* - An alternative for use within Sub Stations etc may be plastic cones and chain. Barriers must be suppiemented by signage.

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Slew Arcs • •

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Defined walkways •/ • • • •

Appendix 1 CORP-HS-STD-1020 : Rev 4: Issued for use : 23-Jun-15


Appendix 2- Types of Barricades and Barriers

CORP-HS-5 Appendix 2

Rev 4: Issued for use

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COLOUR PURPOSE PHOTO

RED & WHITE 'Danger Tape'

Designates a Danger Barricade and shall be used for the following:

• To restrict access to a defined area containing hazards and risks, e.g. a hole in the ground; overhead work is being conducted from which an object may fall; construction and building areas; earthworks involving mobile and other moving equipment; etc.

• To provide protection to those personnel working within the defined area from unauthorised access by any other person or activity.

• No person shall enter into the barricaded area, unless authorised to do so.

• Authority to enter shall be obtained from the Contractor who has control of the barricade.

• Each Danger Barricade shall have an Information Tag attached to it, to identify the purpose, the owner and the duration of requirement of the barricade.

BLACK & YELLOW

Designates a Caution Barricade and shall be used for purposes other than unauthorised entry requirements such as bringing attention to hazards. Prior to entering personnel shall stop, look and assess prior to proceeding with caution if safe to do so.

idr/^ 'Caution Tape'

AOM

CORP-HS-STD-1020 Appendix 2


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SAFETY FLAGGING (Bunting)

Designates walkways, temporary separation of pedestrian ways and roadways, etc.

0̂ information tag shail be insitu upon erection.

(Except green which denotes 'Commissioning')

BLACK & PINK Designates heritage exclusion areas.

GREEN & WHITE TAPE

Designates areas under commissioning control (subject to Project's Commissioning Management Plan).

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RED & WHITE FLAGGING TAPE

Designates flora exclusion zones.

(20mm width) j

PHOTO PURPOSE BARRIERS

J Traffic Cones Temporary means of directing traffic away

from hazardous areas such as slew arcs of cranes, or equipment parked on roadways.

Note; Where the slew arc of a crane's counterweights present crushing hazard, an alternative barricade is to be used to prevent pedestrian access.

- ~ • m

«



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Semi-permanent delineation of walkways or protection from hazardous areas where there is no risk of a fall. Prevents general access. Mesh or Webbing is not to be substituted in areas where hard barricading is required.

Mesh or Webbing Fence

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PHOTO BARRICADES PURPOSE

Concrete or Water Filled Barriers

Provides protection for workers in close proximity of high traffic areas such as main roads. May also be used to block road access or barricade trenches and works next to roadways.

winTf : i i n

Scaffold or Timber Fencing

Hard barricading used to prevent access and protect workers from falls. This type of barricading shall be topped with red/white tape and an information tag.

Gate Fence Semi-permanent delineation of walkways or protection of hazardous areas. May be used to protect from falls around trenches provided fencing is at least 1 metre from the edge of the trench. Prevents general access. Must be secured or at least 2 metres away from edge of excavation. Subject to the hazard, shall be taped with red/white or black/yellow tape.

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Barrier Boards Temporary protection for workers in high traffic areas, directs traffic away from areas such as work sites, pedestrian traffic only access and hazardous areas. Subject to the hazard, shall be coloured red/white or black/yellow.

Semi-permanent mound of loose materials, of an appropriate height placed at the toe or crest of a slope as a barrier to prevent personnel or equipment from falling from one level to another.

Windrow 1 K :



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