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Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing Under the Petroleum and Geothermal Energy Resources Act 1967 , an EP is required to be prepared, approved and implemented for applicable activities. The purpose of this Bridging document is to link the Beharra Springs-2 leak-off testing activity to the Beharra Springs Gas Facility Environment Plan. Where the Environment Plan does not specifically address the proposed activities and potential risks and management measures associated with the activity, details have been provided in this Bridging Document. Bridging Document BEA-EN-PL-02-0 Review record (record the last 3 revisions here or the revisions required to achieve current approval version) Revision Date Reason for issue Reviewer/s Consolidator Approver C 29/05/2019 Updated to address comments from Beach CB CB DG 0 29/05/2019 Final for submission to DMIRS CB CB DG 1 31/05/2019 Revised to address DMIRS feedback CB CB DG Review due Review frequency Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal. THE THREE WHATS What can go wrong? What could cause it to go wrong? What can I do to prevent it?

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Page 1: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document

Beharra Springs-2 Leak off testing Under the Petroleum and Geothermal Energy Resources Act 1967, an EP is required to be prepared, approved and implemented for applicable activities. The purpose of this Bridging document is to link the Beharra Springs-2 leak-off testing activity to the Beharra Springs Gas Facility Environment Plan. Where the Environment Plan does not specifically address the proposed activities and potential risks and management measures associated with the activity, details have been provided in this Bridging Document.

Bridging Document

BEA-EN-PL-02-0

Review record (record the last 3 revisions here or the revisions required to achieve current approval version)

Revision Date Reason for issue Reviewer/s Consolidator Approver

C 29/05/2019 Updated to address comments from Beach CB CB DG

0 29/05/2019 Final for submission to DMIRS CB CB DG

1 31/05/2019 Revised to address DMIRS feedback CB CB DG

Review due Review frequency

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

THE THREE WHATS What can go wrong? What could cause it to go wrong? What can I do to prevent it?

Page 2: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use Document Custodian is BSD-1 Drilling Team Beach Energy Limited: ABN 20 007 617 969 Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal. Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Table of contents

1 Introduction 2 1.1 Scope 2

2 Definitions/Acronyms 3 3 Description of Activity 3

3.1 Location of the Project 3 3.2 Timing of Activity 4 3.3 Justification 4 3.4 Overview of Activity 4 3.5 Chemical Disclosure 5

4 Description of the Environment 5 5 Environmental Risk Assessment Methodology 5 6 Environmental Performance Objectives, Standards and Measurement 6 7 Implementation strategy 13 8 Stakeholder Consultation 13 9 Other Relevant Documents 13 10 References 14 11 Document information and history 15

11.1 Controlled copy distribution 15

Table of figures

Figure 1: Regional Location 4

List of tables

Table 1: Risk Assessment 7 Table 2: Environmental performance standards and measurement criteria for additional controls. 12

List of appendices

Appendix A Chemical Disclosure 16 Appendix B Safety Data Sheets 19

Page 3: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use Document Custodian is BSD-1 Drilling Team Beach Energy Limited: ABN 20 007 617 969 Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal. Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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1 Introduction

Beach Energy Limited acquired Lattice Energy Resources (Perth Basin) Pty Ltd (previously named Origin Energy Resources Limited) on 31 January 2018. Lattice is the majority owner and the nominated operator of the Beharra Springs Gas Facility within petroleum production license L11, situated on the eastern side of the Brand Highway, approximately 31km south east of Dongara and 285 kilometres north of Perth (Figure 1).

The Beharra Springs Gas Facility Environment Plan was developed as the overarching document for management of environmental operations at the Beharra Springs Gas Facility.

This Bridging Document has been developed to link a new activity, described in Section 1.2 below, to the mitigation and management measures in the EP. Where the EP does not specifically address the activity or environmental risks associated with the activity, details have been provided within this bridging document.

1.1 Scope

The scope of this Bridging Document is the activities associated with conducting a leak-off test on the Beharra Springs–2 well.

This Bridging Document has been prepared in accordance with the Guidelines for the Development of Petroleum and Geothermal Environment Plans in Western Australia (DMP 2016) and provides:

• Justification for the project (Section 3.3),

• Description of the activity (Section 3),

• Timing of the activity (Section 3.2),

• Chemical disclosure (Section 3.5),

• A statement that all risks associated with the activity are included in and will be managed as per the management and mitigation measures outlined within the EP and this Bridging Document, and

• Identification of any other documents bridged to (Section 8).

Page 4: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use Document Custodian is BSD-1 Drilling Team Beach Energy Limited: ABN 20 007 617 969 Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal. Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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2 Definitions/Acronyms

Definitions of terms used in this document:

3 Description of Activity

3.1 Location of the Project

The BS-2 well is part of the Beharra Springs Gas Facility, which is located in the Shire of Irwin, approximately 20km south of Dongara and 350km north of Perth (Figure 1). Access to the gas facility is via Mount Adams road off the Brand Highway. The BS-2 well location is approximately 1.5 kilometres south of the Beharra Springs Gas Facility.

Terms/acronym Definition/expansion

BS-2 Beharra Springs 2

BSGF Beharra Springs Gas Facility

DMIRS Department of Mines, Industry Regulation and Safety

DMP Department of Mines and Petroleum

EP Beharra Springs Gas Facility Environment Plan (OEUP-W4100-PLN-ENV-003)

EP Act Environmental Protection Act 1986

EPO Environmental Performance Objective

Lattice Lattice Energy Resources (Perth Basin) Pty Ltd being the title holder and nominated operator of the L-11 production licence

LOC Loss of containment

Origin Origin Energy Resources Limited

PGER(E)R Petroleum and Geothermal Energy Resources (Environment) Regulations

PGERA67 Petroleum and Geothermal Energy Resources Act 1967

psi Pounds per square inch

Page 5: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use Document Custodian is BSD-1 Drilling Team Beach Energy Limited: ABN 20 007 617 969 Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal. Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Figure 1: Regional Location

3.2 Timing of Activity

The leak-off test is scheduled to begin on the 5th June 2019 and is expected to be competed in three days

3.3 Justification

The Beharra Springs field has been producing gas from the Wagina reservoir since 1992, resulting in this interval in the BS-2 well being highly pressure depleted.

In preparation for drilling through the highly depleted Wagina reservoir in the Beharra Springs Deep-1 well, the BS-2 well is to be utilised to complete diagnostic work to determine the leak off pressure of the Wagina Formation by pumping fluid down the tubing to the perforations and pressuring the tubing to a maximum surface pressure of 3,000psi.

3.4 Overview of Activity

The diagnostic work will entail:

• Mixing and pumping inhibited calcium carbonate/polymer mud into the well

• bullheading the mud down the tubing to the Wagina perforations, and

Page 6: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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• performing a formation integrity test to determine the pressure the depleted Wagina formation can hold

after it has been bridged off by the inhibited calcium carbonate polymer mud.

On completion of the test all surface pressure will be bled off the tubing, the well left standing full and shut in.

The activity will be undertaken using the following equipment and contractors:

• Slickline unit provided by Expro Group Australia

• Pumping package provided by Babylon Operations

• Tanks and Water truck to be used to fill the tanks with water sourced from the BSGF northern potable water

bore provided by Lenane Holdings

All contractors will be advised of the requirements and obligations under the EP and this bridging document through the

BSGF induction provided on arrival at the facility.

Chemicals to be utilised for the activity will be stored on pallets on the hardstand area. Liquid chemicals will be stored on

bunded pallets.

3.5 Chemical Disclosure

The Beharra Springs field has been producing gas from the Wagina reservoir since 1992, resulting in this interval in the BS-

2 well being highly pressure depleted.

In accordance with Regulation 9 of the PGER(E)R 2012, chemicals or substances that are:

• In, or added to, any treatment fluids to be used for the purposes of drilling or hydraulic fracturing

undertaken in the course of the activity; or

• Otherwise introduced into a well, reservoir or subsurface formation in the course of the activity,

must be disclosed for acceptance by DMIRS prior to commencing activities.

In addition to this, all chemicals that are to be used down hole under the EP are included on the Australian Inventory of

Chemical Substances (AICS) or are otherwise approved for use in Australia. These are detailed in Appendix A and Appendix

B to this Bridging Document.

4 Description of the Environment

A detailed description of the existing environment is provided in Section 4 of the EP. As BS-2 is located within the same

area, no additional information has been provided.

5 Environmental Risk Assessment Methodology

A review of the risk register attached as Appendix C of the EP has been undertaken considering the risks relevant to the

activity. Risks are discussed in Section 5 of the EP and those relevant to the activity are identified in Table 1 and include:

• Loss of containment of hazardous materials, waste

Page 7: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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• Loss of containment from flexible hoses

• Fire

• Spread of weeds/pathogens

• Adverse impact to existing suitability of groundwater use offsite, and

• Fauna and/or stock injury or death.

No new risks were identified and there was no increase in risk rating. The review has been undertaken in accordance with

the methodology provided in Section 5 of the EP. A summary of the risks identified as relevant to the activity and relevant

existing controls, along with any new controls, is presented in Table 1.

6 Environmental Performance Objectives, Standards and Measurement

All environmental risks and potential impacts associated with the activity will be managed in accordance with the EP and

this Bridging Document. Environmental performance objectives, standards and criteria are provided in Section 6 of the

EP. Performance objectives relevant to the activity are presented in Table 2 of this Bridging Document.

Page 8: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Table 1: Risk Assessment

Risk

ID

Risk Title Relevant Causes Consequence Key Controls Residual

Risk Rating

ENV09 Loss of containment

(LOC) of hazardous

materials / waste

EPO: No loss of

containment of

hydrocarbons, fuels,

chemicals and hazardous

materials to the

environment

EPO: No loss of

containment of liquid

and/or solid wastes to

the environment

Inadequate waste storage,

facilities and containers

Inadequate segregation of stored

materials

Inadequate labelling / damaged

or missing labels

Vehicle / mobile plant incident

during loading/unloading and

transportation

Equipment failure e.g. hose failure

during transfer

Operator error (human factor)

Poor Housekeeping

Hose rupture

Natural disaster (flood, fire,

earthquake)

Drilling sump overflow

(workovers)

Inadequate management of

drilling muds/cuttings

Downhole use of chemicals.

Release of

hazardous

materials/waste

negatively impacts:

* local air quality

leading to increased

greenhouse * soil

quality leading to

localised loss of

vegetation and

reducing its existing

suitability for land

use

* groundwater

quality reducing its

existing suitability

for use

* local amenity

Disturbance of

fauna through loss

of habitat and food

source.

Existing operational controls that apply:

Designated Hazardous Materials storage onsite

Bunded storage areas

Hazardous Materials Procedure - Approval and Control

procedure (CDN/ID3675133)

Segregation of Waste

Chemwatch access - SDS, Manifest, DG Labels.

Hazardous Materials Register

WAA-4100-SAF-REG-00001- Dangerous Goods Manifest

Standing order in place to limit diesel tank inventory is

limited to 2450 L to ensure bund has at least 110% capacity

of volume stored

Operator surveillance of sight glass LI-4100-0430

Operator checks

Emergency Spill Kits

Integrity checks (including UT and RT)

Routine inspection of hazardous material storage areas

Load in/Load out Procedure for diesel (CDN/ID 3677661),

operator present during load in of diesel

Additional activity specific controls:

Chemical disclosure to DMIRS

Low toxicity chemicals used

Medium

Page 9: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Risk

ID

Risk Title Relevant Causes Consequence Key Controls Residual

Risk Rating

ENV14 Loss of containment

from flexible hoses

EPO: No loss of

containment of

hydrocarbons, fuels,

chemicals and hazardous

materials to the

environment

EPO: No loss of

containment of liquid

and/or solid wastes to

the environment

Hose deterioration (age, UV,

vibration, corrosion, surface

abrasion, vehicle damage,

chemical attack)

Poor maintenance

Incorrect hose specifications

Incorrect use of hoses

Incorrect hose fittings and

connections

Overpressure

Thermal expansion

Low Temperature

Release of

produced

water/hydrocarbon

negatively impacts

local soil quality.

Release of

produced

water/hydrocarbon

negatively impacts

groundwater quality

reducing its existing

suitability for use.

Existing operational controls that apply:

Tagged and certified hoses (12 monthly for utility hoses)

Hose Register

Dedicated hose storage area

Regular inspections and maintenance of hoses

Inspections of hoses prior to use - checking fit for purpose

Hoses tested by 3rd party

Spare hoses retained onsite

Spill kits

WAA-4100-OPS-FRM-00002 - Self Area Management System

– SAM – Checklist

Additional activity specific controls:

Nil

Low

ENV15 Site activities initiate a

fire that escalates off site

(beyond plant boundary,

right of way or well

lease) or results in a

bushfire

EPO: Site activities do

not initiate a bushfire

Inadequate cigarette disposal

Vehicle use including trucks

(mufflers, exhausts, load in/out).

Mechanical/electrical or

operational failure of equipment

on site

Accumulation of combustibles

Arid environment

Windy conditions

Back burning / Burn offs

Vegetation maintenance

restrictions

Degradation of local

air quality (smoke).

Disturbance to

existing land use

and amenity

(destruction of

vegetation,

infrastructure).

Disturbance or

destruction of sites

of cultural heritage

Existing operational controls that apply:

Maintenance Management System (CMMS)

WAA-4100-OPS-FRM-00002 - Self Area Management System

– SAM - Checklist

Firebreak maintenance and flare kept clear of combustible

material

Permit To Work – Conventional Operations (EA/WA) (CDN

3674860)

Beharra Springs Fire Management Plan

Emergency Response Plan – Beharra Springs (CDN 3677589)

Medium

Page 10: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Risk

ID

Risk Title Relevant Causes Consequence Key Controls Residual

Risk Rating

significance.

Disturbance of

fauna through loss

of habitat and food

source.

Destruction of rare

and endangered

flora and fauna,

vegetation

communities and

fauna habitat.

Fire detection system

Fire protection system (hose reels, extinguishers)

Emergency Shutdown

Licence for flares at gas production plant current and allows

flaring during

Designated smoking area with adequate disposal

Job safety analysis for all non routine tasks.

Additional activity specific controls:

Nil

ENV19 Site activities will cause

the introduction or

spread of weeds or

pathogens

EPO: Minimise the

potential for

introduction or spread

of weeds, pest animals

or soil based pathogens

Transportation of staff and

equipment

Reduction in local

biodiversity values.

Reduction in land

use capability

Reduction of Fauna

habitat

Existing operational controls that apply:

Designated access roads for routine operations

Traffic management plans for well intervention/wireline and

workover campaigns

Weed hygiene procedures

Additional activity specific controls:

Nil

Medium

Page 11: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Risk

ID

Risk Title Relevant Causes Consequence Key Controls Residual

Risk Rating

ENV26 Site activities will result

in adverse impact to

existing suitability of

groundwater use offsite

EPO: No negative impact

to existing users of

groundwater resources

Inadequate soil and groundwater

remediation and

decommissioning

Inadequate post incident (LOC

events, spills and leaks) clean up

Loss of well integrity

Adverse impact to

existing users of

groundwater.

Existing operational controls that apply:

Monitoring of operations potable water quality

Incident management procedure

Groundwater monitoring program implemented in

accordance with Environmental Licence (L8385/2009) and EP

(OEUP-4100-PLN-ENV-003)

Additional activity specific controls:

Nil

Medium

ENV27 Site activities cause

fauna and/or stock injury

or death

EPO: Minimise impacts

to rare and endangered

flora and fauna,

vegetation communities

and fauna habitat

Transportation of personnel, plant

and equipment during routine

and non routine activities

Fauna/stock death

or injury due to:

collision with

vehicle, mobile

plant and

equipment.

Existing operational controls that apply:

Land Transport Directive requires:

* Journey Management Plans (particularly during shutdown

activities)

* Driver training

* Avoid driving during dawn and dusk

Additional activity specific controls:

Nil

Low

ENV29 Loss of containment of

produced/site drain

water

EPO: No loss of

Pump or piping leak or rupture

due to:

* inadequate design

* incorrect installation

* inappropriate

material/equipment selection

Release of

produced water

negatively impacts

soil quality and

groundwater quality

reducing its existing

Existing operational controls that apply:

Water Handling system designed such that:

* existing separator, new separator, pump and transfer

pipework between separators are within a suitably designed,

sized bunded area

Medium

Page 12: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Risk

ID

Risk Title Relevant Causes Consequence Key Controls Residual

Risk Rating

containment of liquid

and solid wastes

* inadequate maintenance

* inadequate or loss of secondary

containment integrity

Loss of power to pumping /

transfer system

suitability for use.

Release of

hydrocarbon

negatively impacts

groundwater quality

reducing its existing

suitability for use.

* pumping redundancy / spare parts maintained on site

* Interceptor pit pump operations continuously monitored by

plant process control system

* high tank level (pump failure) initiates controlled plant

shutdown

* transfer piping designed in accordance with Technical

Specification for Polyethylene (PE) Pipe Requirements A-100-

55-TS-1004 and Technical Specification for High Density

Polyethylene (HDPE) Pipeline Construction A-1000-55-TS-

1003;

• Australian Standard AS4041 Pressure Piping, and

• NATO Standard STANAG3756 where relevant.

Emergency spill kits located within vicinity of separator

bunded area

Groundwater monitoring program implemented in

accordance with Environmental Licence (L8385/2009) and EP

(OEUP-4100-PLN-ENV-003)

Separator capacity provided which consists of weir and filters

Separator system maintained in accordance with integrity

management plan

Separator system is suitably bunded and integrity of bund

maintained in accordance with integrity management plan

Additional activity specific controls:

Nil

Page 13: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Table 2: Environmental performance standards and measurement criteria for additional controls.

Environmental

Performance Objective Environmental Performance Standard Measurement Criteria Responsibility

No loss of containment

of liquid and solid

wastes

All chemicals required for use down-hole will be disclosed

to DMIRS prior to use.

Records verify no unknown or unauthorised

chemicals are utilised down hole in the well.

HSE

Representative

Beach Energy will use a low-toxicity polymer mud system. Records confirm Beach Energy has used a low-

toxicity polymer mud system.

Project Manager

Page 14: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

13 of 19

7 Implementation strategy

To meet the requirements of Regulation 15(1) of the PGER(E)R, Implementation Strategy for this Bridging

Document Section 7 of the EP describes the implementation strategy - the systems, practices, and procedures

used to ensure that the environmental impacts and risks of the activities are continuously reduced to ALARP,

and the environmental performance objectives and standards are achieved.

No changes to the current implementation strategy will occur as a result of the activity described in this

Bridging Document. All the systems and procedures described in the EP are to be applied to this activity.

8 Stakeholder Engagement and Consultation

The DMIRS Environment Division are the only identified stakeholder requiring notification of this activity being

the subject of this bridging document.

No additional consultation is required for the purposes of this EP bridging document to that included in

section 7.9 of the EP. Well intervention operations, such as those being proposed for the Beharra Springs-2

well, are considered in section 3.6 of the EP and the purpose of this bridging document is to fulfil the EP

requirements for section 3.4.1.1 Chemical Disclosure which states:

Under the Petroleum and Geothermal Energy Resources (Environment) Regulations 2012 operators of

petroleum facilities are required to disclose products, additives, chemicals and other substances that may be

used by the operator for drilling, hydraulic fracturing or other ‘down-well’ petroleum related activities.

No such products, additives, chemicals and other substances are currently used for down well activities at the

Facility. If any such products, additives, chemicals and other substances are proposed for use in future drilling

operations this will be disclosed in the relevant bridging document. Additionally, if any changes to current

operation of wells at the Facility requires the use down well use of products, additives, chemicals and other

substances, these will be disclosed to the regulator prior to use occurring.

9 Other Relevant Documents

This document should be read in conjunction with the EP. Unless otherwise stated in this document, the

management measures and commitments made in the EP apply to the activity. Other documents relevant to

the management of the activity include (but are not limited to):

• The Beharra Springs Onshore Oil Spill Contingency Plan – OSCP (WAA 4100 SAF PLN)

• Emergency Response Plan – Beharra Springs and Jingemia (CDN/ID 3677589)

• Beharra Springs Gas Facility Safety Case (WAA-4100-SAF-PLN-00003)

• Groundwater Licence (GWL155141(6))

• Environmental Licence (L8385/2009)

• Clearing Permits CPS 4607/2 and CPS 6643/1

Page 15: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility

Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

14 of 19

10 References

1. Department of Mines and Petroleum. November 2016. Guideline for the Development of Petroleum and

Geothermal Environment Plans in Western Australia, Available from

http://www.dmp.wa.gov.au/Documents/Environment/ENV-PEB-177.pdf

Page 16: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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11 Document information and history

Document custodian group

Title Name/s

Project Manager Darrell Girgenti

Document author

Position Name

Environmental Advisor Clare Bateman

Stakeholders and other contributors

Position Name

Zoë Bowen Senior Environment Advisor – Beach Energy

Controlled copy distribution

No. Name and Position Organisation

1 DMIRS ED (via EARS Online) - Environment Assessors DMIRS

2 Tim Flowers - Head of Environment Beach

3 Zoë Bowen - Senior Environmental Advisor Beach

4 Audrey Ferry - Perth ERR Aztech

5 Darrell Girgenti - Project Manager Aztech

6 Ashley Fertch - Environment Advisor Aztech

7 Clare Bateman – Environmental Advisor Aztech

Document history

Rev Date Changes made in first document Reviewer/s Consolidator Approver

A 28/05/2019 Internal for WC Review

B 29/05/2019 Final draft for Beach Energy

C 29/05/2019 Updated to address comments from

Beach Energy

0 29/05/2019 Final for Submission to DMIRS

11.1 Controlled copy distribution

Controlled Copies of this document shall be distributed to the persons/areas listed above. The Beach Energy Project

Manager (PM) shall issue revised copies to all, as they are authorised. The old copies shall be returned to PM and

destroyed.

Page 17: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

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Appendix A Chemical Disclosure

A. SYSTEM DETAILS:

OPERATOR: Beach Energy

PROJECT / WELL NAME: BS-2 LOT

SYSTEM: Leak-off test and displacement fluids

TOTAL VOLUME OF SYSTEM (m3): 175m3 (1100 bbl)

B. PRODUCT LIST

Trade name Supplier Purpose Toxicity & Eco toxicity Info % Product in

system fluid

SDS

Attached

Water N/A Base Fluid 94.62% N/A

Calcium Carbonate

Limestone LSC

/Circal 60/16 /

Stonedust

Newpark Bridging &

Weighting Agent

This product is expected to be of low toxicity.

LD50 (Ingestion) = 6450 mg/kg (rat).

Calcium carbonate occurs naturally in a wide variety of substances including limestone,

marble and egg shells. It is not anticipated to cause adverse environmental effects.

This product does not bioaccumulate.

4.16% Y

Calcium Carbonate

Omyacarb 20 / 40 Newpark

Bridging &

Weighting Agent

This product is expected to be of low toxicity.

LD50 (Ingestion) = 6450 mg/kg (rat).

Calcium carbonate occurs naturally in a wide variety of substances including limestone,

marble and egg shells. It is not anticipated to cause adverse environmental effects.

This product does not bioaccumulate.

4.16% Y

NewZan D / Xanthan

Gum (P) / Flowzan / Newpark Viscosifier

This product is expected to be of low toxicity.

LD50 (oral) > 1000 mg/kg (mouse)

LD50 (oral) > 45,000 mg/kg (rat)

LD50 (oral) > 20,000 mg/kg (dog)

LD50 (intraperitoneal): > 50 mg/kg (mouse)

LD50 (intravenous): 100-250 mg/kg (mouse

Not expected to bioaccumulate.

0.30% Y

Page 18: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

17 of 19

B. PRODUCT LIST

Trade name Supplier Purpose Toxicity & Eco toxicity Info % Product in

system fluid

SDS

Attached

Ancor-1 Newpark Corrosion Inhibitor

Toxicity Data

LD50 (Ingestion): 2200 mg/kg (rabbit)

LD50 (Intraperitoneal): 1450 mg/kg (mouse)

LD50 (Skin): > 20 mL/kg (rabbit)

TDLo (Ingestion): 16 g/kg/64 weeks (mouse - cancer)

Ecotoxicity

LC50 (shrimp): > 100 ppm.

Not expected to bioaccumulate

0.84% Y

Idcide-20 Newpark

Biocide/Prevents

bacterial

contamination of

the mud

Ecotoxicity

Constituent 1 - (10-25%)

75% Tetrakis(Hydroxymethyl)Phosphonium Sulphate (55566-30-8):

LC50 (Rainbow Trout) = 119 mg/L/96 hr

LC50(Bluegill Sunfish) = 93 mg/L/ 96 hr

EC50 (Daphnia Magna) = 19 mg/L/48 hr

LC50 (Brown Shrimp) = 340 mg/L/96 hr

LC50 (Mysid Shrimp ) = 9.5 mg/L/96 hr

LC50 (Sheepshead Minnow) = 94 mg/L/96 hr

LC50 (Jevenile Plaice) = 86 mg/L/96 hr

Waste Water management EC50 (Activated Sludge) = 24 mg/L/3 hr

Constituent 2 - (Remainder)

No Hazard

0.08% Y

NDFT 376/377 Newpark

Lost circulation

material /

Wellbore

Strengthening

This product consists of 100% organic fibres (plant material) and is therefore not anticipated

to cause adverse effects to animal or plant life if released to the environment in small

quantities

Acute Toxicity: This product is expected to be of low acute toxicity. Under normal conditions

of use, adverse health effects are not anticipated.

LD50 (Oral Toxicity) > 5000mg/kg (rat)

LD50 (Dermal Toxicity) > 2000mg/kg (rabbit)

LD50 (Inhalation Toxicity) > 5800mg/m3/4 hours

Not expected to bioaccumulate.

1.78% Y

Page 19: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

18 of 19

B. PRODUCT LIST

Trade name Supplier Purpose Toxicity & Eco toxicity Info % Product in

system fluid

SDS

Attached

Total

*Contingent chemicals are highlighted grey. 101.78%

C. Chemical List (Chemicals within fluid system identified in Table B)

Chemicals Name CAS number Mass fraction (%)

Water 7732-18-5 91.84%

Calcium Carbonate 471-34-1 7.04%

Quartz (Silica Crystalline) 14808-60-7 0.01%

Xanthan Gum 11138-66-2 0.5%

Tetrakis (Hydroxymethyl) Phosphonium Sulphate 55566-30-8 0.02%

Triethanolamine 102-71-6 0.59%

Total 100.00%

Organic Fibre 9004-34-6 (Cellulose) 1.35%

Total 1.35%

Page 20: Beharra Springs Gas Facility - Department of Mines

Beharra Springs Gas Facility Environment Plan Bridging Document Beharra Springs-2 Leak off testing

Released on 31/05/2019 - Revision 1 - Status Issued for Issued for use

Document Custodian is BSD-1 Drilling Team

Beach Energy Limited: ABN 20 007 617 969

Once printed, this is an uncontrolled document unless issued and stamped Controlled Copy or issued under a transmittal.

Based on template: AUS 1000 IMT TMP 14376462_Revision 3_Issued for Use _06/03/2019_LE-SystemsInfo-Information Mgt.

BEA-EN-PL-02-0

19 of 19

Appendix B Safety Data Sheets

Page 21: Beharra Springs Gas Facility - Department of Mines

1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER

Synonym(s) CORROSION INHIBITOR

BRINE • CORROSION INHIBITOR • DRILLING FLUID ADDITIVE • OIL AND GAS INDUSTRYUse(s)

1.2 Uses and uses advised against

1.3 Details of the supplier of the product

Supplier name NEWPARK DRILLING FLUIDS (AUSTRALIA) LTD

Address 11 Alacrity Place, Henderson, WA, 6166, AUSTRALIA

Telephone +61 8 9410 8200

Fax +61 8 9410 8299

1800 127 406 (Australia); +64 3 3530199 (International)Emergency

1.4 Emergency telephone number(s)

www.newpark.comWebsite

1.1 Product identifier

ANCOR 1Product name

2. HAZARDS IDENTIFICATION

CLASSIFIED AS HAZARDOUS ACCORDING TO AUSTRALIAN WHS REGULATIONS

2.2 Label elements

Signal word WARNING

No information provided.2.3 Other hazards

Disposal statement(s)None allocated.

Storage statement(s)None allocated.

IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy todo. Continue rinsing.

P305 + P351 + P338

If eye irritation persists: Get medical advice/attention.P337 + P313

Response statement(s)

Wash thoroughly after handling.P264Wear protective gloves/protective clothing/eye protection/face protection.P280

Prevention statement(s)

Causes serious eye irritation.H319Hazard statement(s)

Pictogram(s)

Serious Eye Damage / Eye Irritation: Category 2AGHS classification(s)

2.1 Classification of the substance or mixture

Page 1 of 6SDS Date: 06 May 2015

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ANCOR 1PRODUCT NAME

3. COMPOSITION/ INFORMATION ON INGREDIENTS

Ingredient CAS Number EC Number Content

TRIETHANOLAMINE 68 to 72%102-71-6 203-049-8

NON HAZARDOUS INGREDIENTS 28 to 32%Not Available Not Available

3.1 Substances / Mixtures

4. FIRST AID MEASURES

If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised tostop by a Poisons Information Centre, a doctor, or for at least 15 minutes.

4.1 Description of first aid measures

Eye

Inhalation If inhaled, remove from contaminated area. To protect rescuer, use a Type A (Organic vapour) respirator oran Air-line respirator (in poorly ventilated areas). Apply artificial respiration if not breathing.

Skin If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.Continue flushing with water until advised to stop by a Poisons Information Centre or a doctor.

Ingestion For advice, contact a Poison Information Centre on 13 11 26 (Australia Wide) or a doctor (at once). Ifswallowed, do not induce vomiting.

First aid facilities Eye wash facilities and safety shower should be available.

Over exposure may result in irritation to the eyes, nose and respiratory system. May cause allergic contact dermatitis.4.2 Most important symptoms and effects, both acute and delayed

4.3 Immediate medical attention and special treatment neededTreat symptomatically.

5. FIRE FIGHTING MEASURES

Combustible. May evolve toxic gases (carbon/ nitrogen oxides, amines, ammonia, hydrocarbons) when heated to decomposition.5.2 Special hazards arising from the substance or mixture

Evacuate area and contact emergency services. Toxic gases may be evolved in a fire situation. Remain upwind and notify thosedownwind of hazard. Wear full protective equipment including Self Contained Breathing Apparatus (SCBA) when combating fire. Usewaterfog to cool intact containers and nearby storage areas.

5.3 Advice for firefighters

None allocated.

5.4 Hazchem code

Dry agent, carbon dioxide, foam or water fog. Prevent contamination of drains and waterways.5.1 Extinguishing media

6. ACCIDENTAL RELEASE MEASURES

Wear Personal Protective Equipment (PPE) as detailed in section 8 of the SDS. Clear area of all unprotected personnel. Ventilatearea where possible. Contact emergency services where appropriate.

6.1 Personal precautions, protective equipment and emergency procedures

Prevent product from entering drains and waterways.6.2 Environmental precautions

Contain spillage, then cover / absorb spill with non-combustible absorbent material (vermiculite, sand, or similar), collect and place insuitable containers for disposal.

6.3 Methods of cleaning up

See Sections 8 and 13 for exposure controls and disposal.6.4 Reference to other sections

7. HANDLING AND STORAGE

Page 2 of 6SDS Date: 06 May 2015

Version No: 2.2

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ANCOR 1PRODUCT NAME

Store in a cool, dry, well ventilated area, removed from incompatible substances, heat or ignition sources and foodstuffs. Ensurecontainers are adequately labelled, protected from physical damage and sealed when not in use. Check regularly for leaks or spills.Store as a Class C1 Combustible Liquid (AS1940).

7.2 Conditions for safe storage, including any incompatibilities

No information provided.7.3 Specific end use(s)

7.1 Precautions for safe handling

Before use carefully read the product label. Use of safe work practices are recommended to avoid eye or skin contact and inhalation.Observe good personal hygiene, including washing hands before eating. Prohibit eating, drinking and smoking in contaminated areas.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

Ingredient ReferenceTWA STEL

ppm mg/m³ ppm mg/m³

Triethanolamine SWA (AUS) -- 5 -- --

8.1 Control parameters

Exposure standards

Biological limits

No biological limit values have been entered for this product.

PPE

Eye / Face Wear splash-proof goggles.

Hands Wear PVC or rubber gloves.

Body Wear coveralls.

Respiratory Where an inhalation risk exists, wear a Type A (Organic vapour) respirator. If spraying, wear a Type A-ClassP1 (Organic gases/vapours and Particulate) respirator.

Engineering controls Avoid inhalation. Use in well ventilated areas. Where an inhalation risk exists, mechanical extractionventilation is recommended. Maintain vapour levels below the recommended exposure standard.

8.2 Exposure controls

9. PHYSICAL AND CHEMICAL PROPERTIES

9.1 Information on basic physical and chemical properties COLOURLESS LIQUIDAppearanceSLIGHT ODOUROdourCLASS C1 COMBUSTIBLEFlammability> 100°CFlash pointNOT AVAILABLEBoiling pointNOT AVAILABLEMelting pointNOT AVAILABLEEvaporation rateNOT AVAILABLEpHNOT AVAILABLEVapour density1.1Specific gravitySOLUBLESolubility (water)NOT AVAILABLEVapour pressureNOT AVAILABLEUpper explosion limitNOT AVAILABLELower explosion limitNOT AVAILABLEPartition coefficientNOT AVAILABLEAutoignition temperatureNOT AVAILABLEDecomposition temperatureNOT AVAILABLEViscosity

Page 3 of 6SDS Date: 06 May 2015

Version No: 2.2

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ANCOR 1PRODUCT NAME

9.1 Information on basic physical and chemical properties NOT AVAILABLEExplosive propertiesNOT AVAILABLEOxidising propertiesNOT AVAILABLEOdour threshold

9.2 Other informationNOT AVAILABLE% Volatiles

10. STABILITY AND REACTIVITY

10.2 Chemical stability

Stable under recommended conditions of storage.

10.4 Conditions to avoid

Avoid heat, sparks, open flames and other ignition sources.

10.5 Incompatible materials

Incompatible with oxidising agents (e.g. hypochlorites), acids (e.g. nitric acid), nitrites, heat and ignition sources.

May evolve toxic gases (carbon/ nitrogen oxides, amines, ammonia, hydrocarbons) when heated to decomposition.10.6 Hazardous decomposition products

Hazardous polymerization is not expected to occur.

10.3 Possibility of hazardous reactions

10.1 ReactivityCarefully review all information provided in sections 10.2 to 10.6.

11. TOXICOLOGICAL INFORMATION

Acute toxicity May be harmful if swallowed, in contact with skin, and/or if inhaled.Toxicity Data available for the ingredient:TRIETHANOLAMINE (102-71-6):LD50 (Ingestion): 2200 mg/kg (rabbit)LD50 (Intraperitoneal): 1450 mg/kg (mouse)LD50 (Skin): > 20 mL/kg (rabbit)TDLo (Ingestion): 16 g/kg/64 weeks (mouse - cancer)

Skin Contact may result in mild irritation, redness, pain and rash.

Eye Contact may result in irritation, lacrimation, pain and redness. May result in burns with prolonged contact.

Sensitization Triethanolamine has been reported to cause allergic contact dermatitis. It is not known to cause respiratorysensitisation.

Over exposure may result in irritation of the nose and throat, with coughing. High level exposure may result inbreathing difficulties.

STOT – singleexposure

Aspiration This product is not expected to present an aspiration hazard.

Not classified as causing organ effects from repeated exposure.STOT – repeatedexposure

Reproductive Insufficient data available to classify as a reproductive toxin.

Carcinogenicity Triethanolamine is not classifiable as to its carcinogenicity to humans (IARC Group 3).

Mutagenicity Insufficient data available to classify as a mutagen.

11.1 Information on toxicological effects

12. ECOLOGICAL INFORMATION

12.1 Toxicity

LC50 (shrimp): > 100 ppm.

12.2 Persistence and degradabilityIn soil and water, triethanolamine will biodegrade fairly rapidly following acclamation (half-life in the order of days to weeks).

12.3 Bioaccumulative potentialNot expected to bioaccumulate.

Page 4 of 6SDS Date: 06 May 2015

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ANCOR 1PRODUCT NAME

12.4 Mobility in soil

In soil, residual triethanolamine may leach to groundwater.

12.5 Other adverse effects

No information provided.

13. DISPOSAL CONSIDERATIONS

Waste disposal Reduce with sodium thiosulphate/ bisulphite (not strong reducing agent), acidify with 3M sulphuric acid.Scoop into a container of water and neutralise with soda ash. Absorb with sand or similar and dispose of toan approved landfill site. Contact the manufacturer/supplier for additional information (if required).

13.1 Waste treatment methods

Legislation Dispose of in accordance with relevant local legislation.

LAND TRANSPORT(ADG)

SEA TRANSPORT(IMDG / IMO)

AIR TRANSPORT(IATA / ICAO)

14.4 Packing Group None Allocated

None Allocated None Allocated

None Allocated None Allocated

None Allocated14.3 Transporthazard class

14.1 UN Number

14.2 ProperShipping Name

None Allocated

None Allocated

None Allocated

None Allocated None Allocated

None Allocated

No information provided14.5 Environmental hazards

None AllocatedHazchem code

14.6 Special precautions for user

NOT CLASSIFIED AS A DANGEROUS GOOD BY THE CRITERIA OF THE ADG CODE, IMDG OR IATA

14. TRANSPORT INFORMATION

15. REGULATORY INFORMATION

Poison schedule Classified as a Schedule 5 (S5) Standard for the Uniform Scheduling of Medicines and Poisons (SUSMP).15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

R36 Irritating to eyes.Risk phrases

AUSTRALIA: AICS (Australian Inventory of Chemical Substances)All components are listed on AICS, or are exempt.

Inventory listing(s)

S36 Wear suitable protective clothing.Safety phrases

Xi IrritantHazard codes

Safework Australia criteria is based on the Globally Harmonised System (GHS) of Classification andLabelling of Chemicals.

Classifications

The classifications and phrases listed below are based on the Approved Criteria for Classifying HazardousSubstances [NOHSC: 1008(2004)].

16. OTHER INFORMATION

RESPIRATORS: In general the use of respirators should be limited and engineering controlsemployed to avoid exposure. If respiratory equipment must be worn ensure correct respiratorselection and training is undertaken. Remember that some respirators may be extremelyuncomfortable when used for long periods. The use of air powered or air supplied respirators shouldbe considered where prolonged or repeated use is necessary.

Additional information

Page 5 of 6SDS Date: 06 May 2015

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ANCOR 1PRODUCT NAME

PERSONAL PROTECTIVE EQUIPMENT GUIDELINES:The recommendation for protective equipment contained within this report is provided as a guideonly. Factors such as method of application, working environment, quantity used, productconcentration and the availability of engineering controls should be considered before final selectionof personal protective equipment is made.

HEALTH EFFECTS FROM EXPOSURE:It should be noted that the effects from exposure to this product will depend on several factorsincluding: frequency and duration of use; quantity used; effectiveness of control measures; protectiveequipment used and method of application. Given that it is impractical to prepare a ChemAlert reportwhich would encompass all possible scenarios, it is anticipated that users will assess the risks andapply control methods where appropriate.

ACGIH American Conference of Governmental Industrial HygienistsCAS # Chemical Abstract Service number - used to uniquely identify chemical compoundsCNS Central Nervous SystemEC No. EC No - European Community NumberEMS Emergency Schedules (Emergency Procedures for Ships Carrying Dangerous

Goods)GHS Globally Harmonized SystemGTEPG Group Text Emergency Procedure GuideIARC International Agency for Research on CancerLC50 Lethal Concentration, 50% / Median Lethal ConcentrationLD50 Lethal Dose, 50% / Median Lethal Dosemg/m³ Milligrams per Cubic MetreOEL Occupational Exposure LimitpH relates to hydrogen ion concentration using a scale of 0 (high acidic) to 14 (highly

alkaline).ppm Parts Per MillionSTEL Short-Term Exposure LimitSTOT-RE Specific target organ toxicity (repeated exposure)STOT-SE Specific target organ toxicity (single exposure)SUSMP Standard for the Uniform Scheduling of Medicines and PoisonsSWA Safe Work AustraliaTLV Threshold Limit ValueTWA Time Weighted Average

Abbreviations

This document has been compiled by RMT on behalf of the manufacturer, importer or supplier of theproduct and serves as their Safety Data Sheet ('SDS').

It is based on information concerning the product which has been provided to RMT by themanufacturer, importer or supplier or obtained from third party sources and is believed to representthe current state of knowledge as to the appropriate safety and handling precautions for the productat the time of issue. Further clarification regarding any aspect of the product should be obtaineddirectly from the manufacturer, importer or supplier.

While RMT has taken all due care to include accurate and up-to-date information in this SDS, it doesnot provide any warranty as to accuracy or completeness. As far as lawfully possible, RMT acceptsno liability for any loss, injury or damage (including consequential loss) which may be suffered orincurred by any person as a consequence of their reliance on the information contained in this SDS.

Report status

Prepared by Risk Management Technologies 5 Ventnor Ave, West Perth Western Australia 6005 Phone: +61 8 9322 1711 Fax: +61 8 9322 1794 Email: [email protected] Web: www.rmt.com.au.

[ End of SDS ]

Page 6 of 6SDS Date: 06 May 2015

Version No: 2.2

Page 27: Beharra Springs Gas Facility - Department of Mines

1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER

Synonym(s) AGRICULTURAL LIME • CALCIUM CARBONATE • CHALK • LIMESTONE • OMYACARB 10 • OMYACARB 2• OMYACARB 20 • OMYACARB 40

BRIDGING AGENT • DRILLING FLUID ADDITIVE • WEIGHTING AGENTUse(s)

1.2 Uses and uses advised against

1.3 Details of the supplier of the product

Supplier name NEWPARK DRILLING FLUIDS (AUSTRALIA) LTD

Address 11 Alacrity Place, Henderson, WA, 6166, AUSTRALIA

Telephone +61 8 9410 8200

Fax +61 8 9410 8299

1800 127 406 (Australia); +64 3 3530199 (International)Emergency

1.4 Emergency telephone number(s)

www.newpark.comWebsite

1.1 Product identifier

OMYACARBProduct name

2. HAZARDS IDENTIFICATION

NOT CLASSIFIED AS HAZARDOUS ACCORDING TO AUSTRALIAN WHS REGULATIONS

2.2 Label elementsNo signal word, pictograms, hazard or precautionary statements have been allocated.

No information provided.2.3 Other hazards

2.1 Classification of the substance or mixture

3. COMPOSITION/ INFORMATION ON INGREDIENTS

Ingredient CAS Number EC Number Content

<1%14808-60-7 238-878-4QUARTZ (CRYSTALLINE SILICA)

>96%1317-65-3 215-279-6LIMESTONE (CALCIUM CARBONATE)

3.1 Substances / Mixtures

4. FIRST AID MEASURES

If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised tostop by a Poisons Information Centre, a doctor, or for at least 15 minutes.

4.1 Description of first aid measures

Eye

Inhalation If inhaled, remove from contaminated area. Apply artificial respiration if not breathing.

Skin If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.

Ingestion For advice, contact a Poison Information Centre on 13 11 26 (Australia Wide) or a doctor (at once). Ifswallowed, do not induce vomiting.

First aid facilities No information provided.

Page 1 of 6SDS Date: 02 Jun 2015

Version No: 2.2

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OMYACARBPRODUCT NAME

See Section 11 for more detailed information on health effects and symptoms.4.2 Most important symptoms and effects, both acute and delayed

4.3 Immediate medical attention and special treatment neededTreat symptomatically.

5. FIRE FIGHTING MEASURES

Non flammable. May evolve toxic gases if strongly heated.5.2 Special hazards arising from the substance or mixture

No fire or explosion hazard exists.5.3 Advice for firefighters

None allocated.

5.4 Hazchem code

Use an extinguishing agent suitable for the surrounding fire.5.1 Extinguishing media

6. ACCIDENTAL RELEASE MEASURES

Wear Personal Protective Equipment (PPE) as detailed in section 8 of the SDS.6.1 Personal precautions, protective equipment and emergency procedures

Prevent product from entering drains and waterways.6.2 Environmental precautions

If spilt, collect and reuse where possible. Contain spillage, then collect and place in suitable containers for disposal. Avoid generatingdust.

6.3 Methods of cleaning up

See Sections 8 and 13 for exposure controls and disposal.6.4 Reference to other sections

7. HANDLING AND STORAGE

Store in a cool, dry, well ventilated area, removed from incompatible substances and foodstuffs. Ensure containers are adequatelylabelled, protected from physical damage and sealed when not in use.

7.2 Conditions for safe storage, including any incompatibilities

No information provided.7.3 Specific end use(s)

7.1 Precautions for safe handling

Before use carefully read the product label. Use of safe work practices are recommended to avoid eye or skin contact and inhalation.Observe good personal hygiene, including washing hands before eating. Prohibit eating, drinking and smoking in contaminated areas.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

Ingredient ReferenceTWA STEL

ppm mg/m³ ppm mg/m³

Calcium carbonate (Limestone, Marble, Whiting) SWA (AUS) -- 10 -- --

Quartz (respirable dust) SWA (AUS) -- 0.1 -- --

8.1 Control parameters

Exposure standards

Biological limits

No biological limit values have been entered for this product.

Page 2 of 6SDS Date: 02 Jun 2015

Version No: 2.2

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OMYACARBPRODUCT NAME

PPE

Eye / Face Wear dust-proof goggles.

Hands When using large quantities or where heavy contamination is likely, wear PVC or rubber gloves.

Body When using large quantities or where heavy contamination is likely, wear coveralls.

Respiratory Where an inhalation risk exists, wear a Class P1 (Particulate) respirator.

Engineering controls Avoid inhalation. Use in well ventilated areas. Where an inhalation risk exists, mechanical extractionventilation is recommended. Maintain dust levels below the recommended exposure standard.

8.2 Exposure controls

9. PHYSICAL AND CHEMICAL PROPERTIES

9.1 Information on basic physical and chemical properties OFF-WHITE POWDERAppearanceODOURLESSOdourNON FLAMMABLEFlammabilityNOT RELEVANTFlash pointNOT AVAILABLEBoiling point825°CMelting pointNOT RELEVANTEvaporation rateNOT RELEVANTpHNOT AVAILABLEVapour density2.7Specific gravityINSOLUBLESolubility (water)NOT RELEVANTVapour pressureNOT RELEVANTUpper explosion limitNOT RELEVANTLower explosion limitNOT AVAILABLEPartition coefficientNOT AVAILABLEAutoignition temperatureNOT AVAILABLEDecomposition temperatureNOT AVAILABLEViscosityNOT AVAILABLEExplosive propertiesNOT AVAILABLEOxidising propertiesNOT AVAILABLEOdour threshold

9.2 Other informationNOT RELEVANT% Volatiles

10. STABILITY AND REACTIVITY

10.2 Chemical stability

Stable under recommended conditions of storage.

10.4 Conditions to avoid

Avoid heat, sparks, open flames and other ignition sources.

10.5 Incompatible materials

Incompatible with acids (e.g. nitric acid), fluorine, aluminium (hot) and ammonium salts.

May evolve toxic gases if heated to decomposition.10.6 Hazardous decomposition products

Polymerization will not occur.

10.3 Possibility of hazardous reactions

10.1 ReactivityCarefully review all information provided in sections 10.2 to 10.6.

Page 3 of 6SDS Date: 02 Jun 2015

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OMYACARBPRODUCT NAME

11. TOXICOLOGICAL INFORMATION

Acute toxicity Information available for the product:This product is expected to be of low toxicity. Under normal conditions of use, adverse health effects are notanticipated.

Skin Not classified as a skin irritant. Prolonged or repeated contact may result in mild irritation and rash.

Eye Not classified as an eye irritant. Contact may result in mild irritation, lacrimation and redness.

Sensitization This product is not known to be a skin or respiratory sensitiser.

Not classified as causing organ effects from single exposure.STOT – singleexposure

Aspiration Not relevant.

Chronic exposure to respirable silica may result in pulmonary fibrosis (silicosis). However, given the lowlevels present, over exposure is not anticipated.

STOT – repeatedexposure

Reproductive Insufficient data available to classify as a reproductive toxin.

Carcinogenicity Crystalline silica is classified as carcinogenic to humans (IARC Group 1). However, there is insufficientrespirable silica in this product to be classified as a carcinogen.

Mutagenicity Insufficient data available to classify as a mutagen.

11.1 Information on toxicological effects

12. ECOLOGICAL INFORMATION

12.1 Toxicity

Calcium carbonate occurs naturally in a wide variety of substances including limestone, marble and egg shells. It is not anticipated tocause adverse environmental effects.

12.2 Persistence and degradabilityDissolved calcium carbonate dissociates into calcium and carbonate ions. Calcium ions will be assimilated by living organisms in thewater and the carbonate will become part of the carbon cycle.

12.4 Mobility in soil

Due to its limited solubility, calcium carbonate precipitates and deposits on the sediment.

12.5 Other adverse effects

No information provided.

12.3 Bioaccumulative potentialThis product does not bioaccumulate.

13. DISPOSAL CONSIDERATIONS

Waste disposal Ensure product is covered with moist soil to prevent dust generation and dispose of to approved Councillandfill. Contact the manufacturer/supplier for additional information (if required).

13.1 Waste treatment methods

Legislation Dispose of in accordance with relevant local legislation.

LAND TRANSPORT(ADG)

SEA TRANSPORT(IMDG / IMO)

AIR TRANSPORT(IATA / ICAO)

14.4 Packing Group None Allocated

None Allocated None Allocated

None Allocated None Allocated

None Allocated14.3 Transporthazard class

14.1 UN Number

14.2 ProperShipping Name

None Allocated

None Allocated

None Allocated

None Allocated None Allocated

None Allocated

No information provided14.5 Environmental hazards

NOT CLASSIFIED AS A DANGEROUS GOOD BY THE CRITERIA OF THE ADG CODE, IMDG OR IATA

14. TRANSPORT INFORMATION

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OMYACARBPRODUCT NAME

None AllocatedHazchem code

14.6 Special precautions for user

15. REGULATORY INFORMATION

Poison schedule A poison schedule number has not been allocated to this product using the criteria in the Standard for theUniform Scheduling of Medicines and Poisons (SUSMP).

15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

Risk phrases None allocated.

AUSTRALIA: AICS (Australian Inventory of Chemical Substances)All components are listed on AICS, or are exempt.

Inventory listing(s)

Safety phrases None allocated.

Hazard codes None allocated.

Safework Australia criteria is based on the Globally Harmonised System (GHS) of Classification andLabelling of Chemicals.

Classifications

The classifications and phrases listed below are based on the Approved Criteria for Classifying HazardousSubstances [NOHSC: 1008(2004)].

16. OTHER INFORMATION

RESPIRATORS: In general the use of respirators should be limited and engineering controlsemployed to avoid exposure. If respiratory equipment must be worn ensure correct respiratorselection and training is undertaken. Remember that some respirators may be extremelyuncomfortable when used for long periods. The use of air powered or air supplied respirators shouldbe considered where prolonged or repeated use is necessary.

EXPOSURE CONTROL: If utilised in a closed system the potential for over exposure is reduced. Ifnot used in a closed system, local exhaust ventilation is recommended to control exposure. Provideeye wash and safety shower in close proximity to points of potential exposure. Where the potentialfor an inhalation risk exists, an approved respirator may be required. Do not eat, store, consumefood, tobacco or drink in areas where product is used.

PERSONAL PROTECTIVE EQUIPMENT GUIDELINES:The recommendation for protective equipment contained within this report is provided as a guideonly. Factors such as method of application, working environment, quantity used, productconcentration and the availability of engineering controls should be considered before final selectionof personal protective equipment is made.

HEALTH EFFECTS FROM EXPOSURE:It should be noted that the effects from exposure to this product will depend on several factorsincluding: frequency and duration of use; quantity used; effectiveness of control measures; protectiveequipment used and method of application. Given that it is impractical to prepare a ChemAlert reportwhich would encompass all possible scenarios, it is anticipated that users will assess the risks andapply control methods where appropriate.

Additional information

Page 5 of 6SDS Date: 02 Jun 2015

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OMYACARBPRODUCT NAME

ACGIH American Conference of Governmental Industrial HygienistsCAS # Chemical Abstract Service number - used to uniquely identify chemical compoundsCNS Central Nervous SystemEC No. EC No - European Community NumberEMS Emergency Schedules (Emergency Procedures for Ships Carrying Dangerous

Goods)GHS Globally Harmonized SystemGTEPG Group Text Emergency Procedure GuideIARC International Agency for Research on CancerLC50 Lethal Concentration, 50% / Median Lethal ConcentrationLD50 Lethal Dose, 50% / Median Lethal Dosemg/m³ Milligrams per Cubic MetreOEL Occupational Exposure LimitpH relates to hydrogen ion concentration using a scale of 0 (high acidic) to 14 (highly

alkaline).ppm Parts Per MillionSTEL Short-Term Exposure LimitSTOT-RE Specific target organ toxicity (repeated exposure)STOT-SE Specific target organ toxicity (single exposure)SUSMP Standard for the Uniform Scheduling of Medicines and PoisonsSWA Safe Work AustraliaTLV Threshold Limit ValueTWA Time Weighted Average

Abbreviations

This document has been compiled by RMT on behalf of the manufacturer, importer or supplier of theproduct and serves as their Safety Data Sheet ('SDS').

It is based on information concerning the product which has been provided to RMT by themanufacturer, importer or supplier or obtained from third party sources and is believed to representthe current state of knowledge as to the appropriate safety and handling precautions for the productat the time of issue. Further clarification regarding any aspect of the product should be obtaineddirectly from the manufacturer, importer or supplier.

While RMT has taken all due care to include accurate and up-to-date information in this SDS, it doesnot provide any warranty as to accuracy or completeness. As far as lawfully possible, RMT acceptsno liability for any loss, injury or damage (including consequential loss) which may be suffered orincurred by any person as a consequence of their reliance on the information contained in this SDS.

Report status

Prepared by Risk Management Technologies 5 Ventnor Ave, West Perth Western Australia 6005 Phone: +61 8 9322 1711 Fax: +61 8 9322 1794 Email: [email protected] Web: www.rmt.com.au.

[ End of SDS ]

Page 6 of 6SDS Date: 02 Jun 2015

Version No: 2.2

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1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER

Synonym(s) CALCIUM CARBONATE • STONE DUST

BRIDGING AGENT • WEIGHTING AGENTUse(s)

1.2 Uses and uses advised against

1.3 Details of the supplier of the product

Supplier name NEWPARK DRILLING FLUIDS (AUSTRALIA) LTD

Address 11 Alacrity Place, Henderson, WA, 6166, AUSTRALIA

Telephone +61 8 9410 8200

Fax +61 8 9410 8299

1800 127 406 (Australia); +64 3 3530199 (International)Emergency

1.4 Emergency telephone number(s)

www.newpark.comWebsite

1.1 Product identifier

LIMESTONE LSC/L80Product name

2. HAZARDS IDENTIFICATION

NOT CLASSIFIED AS HAZARDOUS ACCORDING TO AUSTRALIAN WHS REGULATIONS

2.2 Label elementsNo signal word, pictograms, hazard or precautionary statements have been allocated.

No information provided.2.3 Other hazards

2.1 Classification of the substance or mixture

3. COMPOSITION/ INFORMATION ON INGREDIENTS

Ingredient CAS Number EC Number Content

QUARTZ (CRYSTALLINE SILICA) <1%14808-60-7 238-878-4

CALCIUM CARBONATE >96%471-34-1 207-439-9

3.1 Substances / Mixtures

4. FIRST AID MEASURES

If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised tostop by a Poisons Information Centre, a doctor, or for at least 15 minutes.

4.1 Description of first aid measures

Eye

Inhalation If inhaled, remove from contaminated area. Apply artificial respiration if not breathing.

Skin If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.

Ingestion For advice, contact a Poison Information Centre on 13 11 26 (Australia Wide) or a doctor (at once). Ifswallowed, do not induce vomiting.

First aid facilities No information provided.

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LIMESTONE LSC/L80PRODUCT NAME

See Section 11 for more detailed information on health effects and symptoms.4.2 Most important symptoms and effects, both acute and delayed

4.3 Immediate medical attention and special treatment neededTreat symptomatically.

5. FIRE FIGHTING MEASURES

Non flammable. May evolve toxic gases if strongly heated.5.2 Special hazards arising from the substance or mixture

No fire or explosion hazard exists.5.3 Advice for firefighters

None allocated.

5.4 Hazchem code

Use an extinguishing agent suitable for the surrounding fire.5.1 Extinguishing media

6. ACCIDENTAL RELEASE MEASURES

Wear Personal Protective Equipment (PPE) as detailed in section 8 of the SDS.6.1 Personal precautions, protective equipment and emergency procedures

Prevent product from entering drains and waterways.6.2 Environmental precautions

If spilt, collect and reuse where possible. Contain spillage, then collect and place in suitable containers for disposal. Avoid generatingdust.

6.3 Methods of cleaning up

See Sections 8 and 13 for exposure controls and disposal.6.4 Reference to other sections

7. HANDLING AND STORAGE

Store in a cool, dry, well ventilated area, removed from incompatible substances and foodstuffs. Ensure containers are adequatelylabelled, protected from physical damage and sealed when not in use.

7.2 Conditions for safe storage, including any incompatibilities

No information provided.7.3 Specific end use(s)

7.1 Precautions for safe handling

Before use carefully read the product label. Use of safe work practices are recommended to avoid eye or skin contact and inhalation.Observe good personal hygiene, including washing hands before eating. Prohibit eating, drinking and smoking in contaminated areas.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

Ingredient ReferenceTWA STEL

ppm mg/m³ ppm mg/m³

Calcium carbonate (Limestone, Marble, Whiting) SWA (AUS) -- 10 -- --

Quartz (respirable dust) SWA (AUS) -- 0.1 -- --

8.1 Control parameters

Exposure standards

Biological limits

No biological limit values have been entered for this product.

Page 2 of 6SDS Date: 16 Apr 2015

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LIMESTONE LSC/L80PRODUCT NAME

PPE

Eye / Face Wear dust-proof goggles.

Hands When using large quantities or where heavy contamination is likely, wear PVC or rubber gloves.

Body When using large quantities or where heavy contamination is likely, wear coveralls.

Respiratory Wear a Class P3 (Particulate) respirator. Where an inhalation risk exists, wear a Class P1 (Particulate)respirator.

Engineering controls Avoid inhalation. Use in well ventilated areas. Where an inhalation risk exists, mechanical extractionventilation is recommended. Maintain dust levels below the recommended exposure standard.

8.2 Exposure controls

9. PHYSICAL AND CHEMICAL PROPERTIES

9.1 Information on basic physical and chemical properties OFF-WHITE POWDERAppearanceSLIGHT ODOUROdourNON FLAMMABLEFlammabilityNOT RELEVANTFlash pointNOT AVAILABLEBoiling point825°CMelting pointNOT AVAILABLEEvaporation rateNOT AVAILABLEpHNOT AVAILABLEVapour density2.7Specific gravityINSOLUBLESolubility (water)NOT AVAILABLEVapour pressureNOT RELEVANTUpper explosion limitNOT RELEVANTLower explosion limitNOT AVAILABLEPartition coefficientNOT AVAILABLEAutoignition temperatureNOT AVAILABLEDecomposition temperatureNOT AVAILABLEViscosityNOT AVAILABLEExplosive propertiesNOT AVAILABLEOxidising propertiesNOT AVAILABLEOdour threshold

9.2 Other informationNOT AVAILABLE% Volatiles

10. STABILITY AND REACTIVITY

10.2 Chemical stability

Stable under recommended conditions of storage.

10.4 Conditions to avoid

Avoid heat, sparks, open flames and other ignition sources.

10.5 Incompatible materials

Incompatible with acids (e.g. nitric acid), fluorine, aluminium (hot) and ammonium salts.

Polymerization will not occur.

10.3 Possibility of hazardous reactions

10.1 ReactivityCarefully review all information provided in sections 10.2 to 10.6.

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LIMESTONE LSC/L80PRODUCT NAME

May evolve toxic gases if heated to decomposition.10.6 Hazardous decomposition products

11. TOXICOLOGICAL INFORMATION

Acute toxicity This product is expected to be of low toxicity. Under normal conditions of use, adverse health effects are notanticipated. LD50 (Ingestion): 6450 mg/kg (rat).

Skin Not classified as a skin irritant. Prolonged or repeated contact may result in mild irritation and rash.

Eye Not classified as an eye irritant. Contact may result in mild irritation, lacrimation and redness.

Sensitization This product is not known to be a skin or respiratory sensitiser.

Not classified as causing organ effects from single exposure.STOT – singleexposure

Aspiration Not relevant.

Chronic exposure to respirable silica may result in pulmonary fibrosis (silicosis). However, given the lowlevels present, over exposure is not anticipated.

STOT – repeatedexposure

Reproductive Insufficient data available to classify as a reproductive toxin.

Carcinogenicity Crystalline silica is classified as carcinogenic to humans (IARC Group 1). However, there is insufficientrespirable silica in this product to be classified as a carcinogen.

Mutagenicity Insufficient data available to classify as a mutagen.

11.1 Information on toxicological effects

12. ECOLOGICAL INFORMATION

12.1 Toxicity

Calcium carbonate occurs naturally in a wide variety of substances including limestone, marble and egg shells. It is not anticipated tocause adverse environmental effects.

12.2 Persistence and degradabilityBiodegradability does not pertain to inorganic substances. Dissolved calcium carbonate dissociates into calcium and carbonate ions.Calcium ions will be assimilated by living organisms in the water and the carbonate will become part of the carbon cycle.

12.4 Mobility in soil

Due to its limited solubility, calcium carbonate precipitates and deposits on the sediment.

12.5 Other adverse effects

No information provided.

12.3 Bioaccumulative potentialThis product does not bioaccumulate.

13. DISPOSAL CONSIDERATIONS

Waste disposal Ensure product is covered with moist soil to prevent dust generation and dispose of to approved Councillandfill. Contact the manufacturer/supplier for additional information (if required).

13.1 Waste treatment methods

Legislation Dispose of in accordance with relevant local legislation.

NOT CLASSIFIED AS A DANGEROUS GOOD BY THE CRITERIA OF THE ADG CODE, IMDG OR IATA

14. TRANSPORT INFORMATION

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LIMESTONE LSC/L80PRODUCT NAME

LAND TRANSPORT(ADG)

SEA TRANSPORT(IMDG / IMO)

AIR TRANSPORT(IATA / ICAO)

14.4 Packing Group None Allocated

None Allocated None Allocated

None Allocated None Allocated

None Allocated14.3 Transporthazard class

14.1 UN Number

14.2 ProperShipping Name

None Allocated

None Allocated

None Allocated

None Allocated None Allocated

None Allocated

No information provided14.5 Environmental hazards

None AllocatedHazchem code

14.6 Special precautions for user

15. REGULATORY INFORMATION

Poison schedule A poison schedule number has not been allocated to this product using the criteria in the Standard for theUniform Scheduling of Medicines and Poisons (SUSMP).

15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

Risk phrases None allocated.

AUSTRALIA: AICS (Australian Inventory of Chemical Substances)All components are listed on AICS, or are exempt.

Inventory listing(s)

Safety phrases None allocated.

Hazard codes None allocated.

Safework Australia criteria is based on the Globally Harmonised System (GHS) of Classification andLabelling of Chemicals.

Classifications

The classifications and phrases listed below are based on the Approved Criteria for Classifying HazardousSubstances [NOHSC: 1008(2004)].

16. OTHER INFORMATION

RESPIRATORS: In general the use of respirators should be limited and engineering controlsemployed to avoid exposure. If respiratory equipment must be worn ensure correct respiratorselection and training is undertaken. Remember that some respirators may be extremelyuncomfortable when used for long periods. The use of air powered or air supplied respirators shouldbe considered where prolonged or repeated use is necessary.

EXPOSURE CONTROL: If utilised in a closed system the potential for over exposure is reduced. Ifnot used in a closed system, local exhaust ventilation is recommended to control exposure. Provideeye wash and safety shower in close proximity to points of potential exposure. Where the potentialfor an inhalation risk exists, an approved respirator may be required. Do not eat, store, consumefood, tobacco or drink in areas where product is used.

PERSONAL PROTECTIVE EQUIPMENT GUIDELINES:The recommendation for protective equipment contained within this report is provided as a guideonly. Factors such as method of application, working environment, quantity used, productconcentration and the availability of engineering controls should be considered before final selectionof personal protective equipment is made.

HEALTH EFFECTS FROM EXPOSURE:It should be noted that the effects from exposure to this product will depend on several factorsincluding: frequency and duration of use; quantity used; effectiveness of control measures; protectiveequipment used and method of application. Given that it is impractical to prepare a ChemAlert reportwhich would encompass all possible scenarios, it is anticipated that users will assess the risks andapply control methods where appropriate.

Additional information

Page 5 of 6SDS Date: 16 Apr 2015

Version No: 2.1

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LIMESTONE LSC/L80PRODUCT NAME

ACGIH American Conference of Governmental Industrial HygienistsCAS # Chemical Abstract Service number - used to uniquely identify chemical compoundsCNS Central Nervous SystemEC No. EC No - European Community NumberEMS Emergency Schedules (Emergency Procedures for Ships Carrying Dangerous

Goods)GHS Globally Harmonized SystemGTEPG Group Text Emergency Procedure GuideIARC International Agency for Research on CancerLC50 Lethal Concentration, 50% / Median Lethal ConcentrationLD50 Lethal Dose, 50% / Median Lethal Dosemg/m³ Milligrams per Cubic MetreOEL Occupational Exposure LimitpH relates to hydrogen ion concentration using a scale of 0 (high acidic) to 14 (highly

alkaline).ppm Parts Per MillionSTEL Short-Term Exposure LimitSTOT-RE Specific target organ toxicity (repeated exposure)STOT-SE Specific target organ toxicity (single exposure)SUSMP Standard for the Uniform Scheduling of Medicines and PoisonsSWA Safe Work AustraliaTLV Threshold Limit ValueTWA Time Weighted Average

Abbreviations

This document has been compiled by RMT on behalf of the manufacturer, importer or supplier of theproduct and serves as their Safety Data Sheet ('SDS').

It is based on information concerning the product which has been provided to RMT by themanufacturer, importer or supplier or obtained from third party sources and is believed to representthe current state of knowledge as to the appropriate safety and handling precautions for the productat the time of issue. Further clarification regarding any aspect of the product should be obtaineddirectly from the manufacturer, importer or supplier.

While RMT has taken all due care to include accurate and up-to-date information in this SDS, it doesnot provide any warranty as to accuracy or completeness. As far as lawfully possible, RMT acceptsno liability for any loss, injury or damage (including consequential loss) which may be suffered orincurred by any person as a consequence of their reliance on the information contained in this SDS.

Report status

Prepared by Risk Management Technologies 5 Ventnor Ave, West Perth Western Australia 6005 Phone: +61 8 9322 1711 Fax: +61 8 9322 1794 Email: [email protected] Web: www.rmt.com.au.

[ End of SDS ]

Page 6 of 6SDS Date: 16 Apr 2015

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1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER

Synonym(s) IDCIDE 20

BIOCIDE • DRILLING FLUID ADDITIVE • WATER TREATMENTUse(s)

1.2 Uses and uses advised against

1.3 Details of the supplier of the product

Supplier name NEWPARK DRILLING FLUIDS (AUSTRALIA) LTD

Address 11 Alacrity Place, Henderson, WA, 6166, AUSTRALIA

Telephone +61 8 9410 8200

Fax +61 8 9410 8299

1800 127 406 (Australia); +64 3 3530199 (International)Emergency

1.4 Emergency telephone number(s)

www.newpark.comWebsite

1.1 Product identifier

IDCIDE-20Product name

2. HAZARDS IDENTIFICATION

CLASSIFIED AS HAZARDOUS ACCORDING TO SAFE WORK AUSTRALIA CRITERIA

2.2 Label elements

Signal word WARNING

IF ON SKIN: Wash with plenty of soap and water.P302 + P352IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy todo. Continue rinsing.

P305 + P351 + P338

Specific treatment is advised - see first aid instructions.P321If skin irritation or rash occurs: Get medical advice/attention.P333 + P313Take off contaminated clothing and wash before re-use.P362

Response statement(s)

Avoid breathing dust/fume/gas/mist/vapours/spray.P261Wash thoroughly after handling.P264Contaminated work clothing should not be allowed out of the workplace.P272Wear protective gloves/protective clothing/eye protection/face protection.P280

Prevention statement(s)

Causes skin irritation.H315May cause an allergic skin reaction.H317Causes serious eye irritation.H319

Hazard statement(s)

Pictograms

Skin Sensitization: Category 1Skin Corrosion/Irritation: Category 2Serious Eye Damage / Eye Irritation: Category 2A

GHS classification

2.1 Classification of the substance or mixture

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IDCIDE-20PRODUCT NAME

No information provided.2.3 Other hazards

Dispose of contents/container in accordance with relevant regulations.P501Disposal statement(s)

Storage statement(s)None allocated.

3. COMPOSITION/ INFORMATION ON INGREDIENTS

Ingredient Identification Classification Content GHS Risk

TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULPHATE

CAS: 55566-30-8EC: 259-709-0

18 to 25%Not Available Not Available

WATER CAS: 7732-18-5EC: 231-791-2

RemainderNot Available Not Available

3.1 Substances / Mixtures

4. FIRST AID MEASURES

If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised tostop by a Poisons Information Centre, a doctor, or for at least 15 minutes.

4.1 Description of first aid measures

Eye

Inhalation If inhaled, remove from contaminated area. Apply artificial respiration if not breathing.

Skin If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.Continue flushing with water until advised to stop by a Poisons Information Centre or a doctor.

Ingestion For advice, contact a Poison Information Centre on 13 11 26 (Australia Wide) or a doctor (at once). Ifswallowed, do not induce vomiting.

First aid facilities Eye wash facilities should be available.

See Section 11 for more detailed information on health effects and symptoms.4.2 Most important symptoms and effects, both acute and delayed

4.3 Immediate medical attention and special treatment neededTreat symptomatically.

5. FIRE FIGHTING MEASURES

Non flammable. May evolve toxic gases if strongly heated. May evolve carbon oxides, sulphur oxides and phosphates when heated todecomposition.

5.2 Special hazards arising from the substance or mixture

Treat as per requirements for surrounding fires. Evacuate area and contact emergency services. Remain upwind and notify thosedownwind of hazard. Wear full protective equipment including Self Contained Breathing Apparatus (SCBA) when combating fire. Usewaterfog to cool intact containers and nearby storage areas.

5.3 Advice for firefighters

None allocated.

5.4 Hazchem code

Use an extinguishing agent suitable for the surrounding fire.5.1 Extinguishing media

6. ACCIDENTAL RELEASE MEASURES

Wear Personal Protective Equipment (PPE) as detailed in Section 8. Clear area of all unprotected personnel. Ventilate area wherepossible.

6.1 Personal precautions, protective equipment and emergency procedures

Page 2 of 7

SDS Date: 28 Jul 2014

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IDCIDE-20PRODUCT NAME

Prevent product from entering drains and waterways.6.2 Environmental precautions

Contain spillage, then cover/absorb spill with non-combustible absorbent material (vermiculite, sand, or similar), collect and place insuitable containers for disposal.

6.3 Methods of cleaning up

See Sections 8 and 13 for exposure controls and disposal.6.4 Reference to other sections

7. HANDLING AND STORAGE

Store in a cool, dry, well ventilated area, removed from incompatible substances, heat or ignition sources and foodstuffs. Ensurecontainers are adequately labelled, protected from physical damage and sealed when not in use.

7.2 Conditions for safe storage, including any incompatibilities

No information provided.7.3 Specific end use(s)

7.1 Precautions for safe handling

Before use carefully read the product label. Use of safe work practices are recommended to avoid eye or skin contact and inhalation.Observe good personal hygiene, including washing hands before eating. Prohibit eating, drinking and smoking in contaminated areas.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

No exposure standards have been entered for this product.

8.1 Control parameters

Exposure standards

Biological limits

No biological limit values have been entered for this product.

PPE

Eye / Face Wear a faceshield and splash-proof goggles.

Hands Wear PVC or rubber gloves.

Body Not required under normal conditions of use.

Respiratory Not required under normal conditions of use.

Engineering controls Avoid inhalation. Use in well ventilated areas. Where an inhalation risk exists, mechanical extractionventilation is recommended.

8.2 Exposure controls

9. PHYSICAL AND CHEMICAL PROPERTIES

9.1 Information on basic physical and chemical properties COLOURLESS TO PALE YELLOW LIQUIDAppearanceSLIGHT ODOUROdourNON FLAMMABLEFlammabilityNOT RELEVANTFlash point> 100°CBoiling point< 0°CMelting pointAS FOR WATEREvaporation rate3.0 to 3.5pHNOT AVAILABLEVapour density1.08Specific gravitySOLUBLESolubility (water)

Page 3 of 7

SDS Date: 28 Jul 2014

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IDCIDE-20PRODUCT NAME

9.1 Information on basic physical and chemical properties 18 mm Hg @ 20°CVapour pressureNOT RELEVANTUpper explosion limitNOT RELEVANTLower explosion limitNOT AVAILABLEPartition coefficientNOT AVAILABLEAutoignition temperatureNOT AVAILABLEDecomposition temperatureNOT AVAILABLEViscosityNOT AVAILABLEExplosive propertiesNOT AVAILABLEOxidising propertiesNOT AVAILABLEOdour threshold

9.2 Other information> 60 % (Water)% Volatiles

10. STABILITY AND REACTIVITY

10.2 Chemical stability

Stable under recommended conditions of storage.

10.4 Conditions to avoid

Avoid heat, sparks, open flames and other ignition sources.

10.5 Incompatible materials

Incompatible with oxidising agents (eg. hypochlorites) and acids (eg. nitric acid).

May evolve carbon oxides, sulphur oxides and phosphates when heated to decomposition.10.6 Hazardous decomposition products

Polymerization is not expected to occur.

10.3 Possibility of hazardous reactions

10.1 ReactivityCarefully review all information provided in sections 10.2 to 10.6.

11. TOXICOLOGICAL INFORMATION

Eye Irritant. Contact may result in irritation, lacrimation, pain and redness.

Inhalation Low to moderate irritant. Over exposure to vapours may result in irritation of the nose and throat, withcoughing. High level exposure may result in dizziness, nausea and headache. Due to the low vapourpressure, an inhalation hazard is not anticipated with normal use.

Skin Irritant. Contact may result in irritation. May cause sensitisation by skin contact.

Ingestion May be harmful. Ingestion may result in gastrointestinal irritation, nausea, vomiting, abdominal pain anddiarrhoea.

May be harmful - irritant. This product has the potential to cause adverse health effects with over exposure.Upon dilution, the potential for adverse health effects may be reduced.

Health hazardsummary

11.1 Information on toxicological effects

Toxicity data TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULPHATE (55566-30-8)LD50 (ingestion) 248 mg/kg (rat)TDLo (ingestion) 650 mg/kg/13 weeks - intermittent (rat)

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IDCIDE-20PRODUCT NAME

12. ECOLOGICAL INFORMATION

12.1 Toxicity

75% TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULPHATE (55566-30-8):LC50 (Rainbow Trout) = 119 mg/L/96 hrLC50(Bluegill Sunfish) = 93 mg/L/ 96 hrEC50 (Daphnia Magna) = 19 mg/L/48 hrLC50 (Brown Shrimp) = 340 mg/L/96 hrLC50 (Mysid Shrimp ) = 9.5 mg/L/96 hrLC50 (Sheepshead Minnow) = 94 mg/L/96 hrLC50 (Jevenile Plaice) = 86 mg/L/96 hr

Waste Water managementEC50 (Activated Sludge) = 24 mg/L/3 hr

12.2 Persistence and degradabilityThis product is readily biodegradable.

12.4 Mobility in soil

No information provided.

12.5 Other adverse effects

No information provided.

12.3 Bioaccumulative potentialNo information provided.

13. DISPOSAL CONSIDERATIONS

Waste disposal For small amounts, absorb with sand, vermiculite or similar and dispose of to an approved landfill site. Forlarger amounts, contact the manufacturer for additional information. Prevent contamination of drains orwaterways as aquatic life may be threatened and environmental damage may result.

13.1 Waste treatment methods

Legislation Dispose of in accordance with relevant local legislation.

LAND TRANSPORT(ADG)

SEA TRANSPORT(IMDG / IMO)

AIR TRANSPORT(IATA / ICAO)

14.4 Packing Group None Allocated

None Allocated None Allocated

None Allocated None Allocated

None Allocated14.3 Transporthazard class

14.1 UN Number

14.2 ProperShipping Name

None Allocated

None Allocated

None Allocated

None Allocated None Allocated

None Allocated

No information provided14.5 Environmental hazards

None AllocatedHazchem code

14.6 Special precautions for user

NOT CLASSIFIED AS A DANGEROUS GOOD BY THE CRITERIA OF THE ADG CODE, IMDG OR IATA

14. TRANSPORT INFORMATION

15. REGULATORY INFORMATION

Poison schedule A poison schedule number has not been allocated to this product using the criteria in the Standard for theUniform Scheduling of Medicines and Poisons (SUSMP).

15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

Safework Australia criteria is based on the Globally Harmonised System (GHS) of Classification andLabelling of Chemicals.

Classifications

The classifications and phrases listed below are based on the Approved Criteria for Classifying HazardousSubstances [NOHSC: 1008(2004)].

Page 5 of 7

SDS Date: 28 Jul 2014

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IDCIDE-20PRODUCT NAME

R36/38 Irritating to eyes and skin.R43 May cause sensitisation by skin contact.

Risk phrases

AUSTRALIA: AICS (Australian Inventory of Chemical Substances)All components are listed on AICS, or are exempt.

Inventory listing(s)

S23 Do not breathe gas/fumes/vapour/spray (where applicable).S24/25 Avoid contact with skin and eyes.S36 Wear suitable protective clothing.

Safety phrases

Xi IrritantHazard codes

16. OTHER INFORMATION

EXPOSURE CONTROL: If utilised in a closed system the potential for over exposure is reduced. Ifnot used in a closed system, local exhaust ventilation is recommended to control exposure. Provideeye wash and safety shower in close proximity to points of potential exposure. Where the potentialfor an inhalation risk exists, an approved respirator may be required. Do not eat, store, consumefood, tobacco or drink in areas where product is used.

RESPIRATORS: In general the use of respirators should be limited and engineering controlsemployed to avoid exposure. If respiratory equipment must be worn ensure correct respiratorselection and training is undertaken. Remember that some respirators may be extremelyuncomfortable when used for long periods. The use of air powered or air supplied respirators shouldbe considered where prolonged or repeated use is necessary.

PERSONAL PROTECTIVE EQUIPMENT GUIDELINES:The recommendation for protective equipment contained within this report is provided as a guideonly. Factors such as method of application, working environment, quantity used, productconcentration and the availability of engineering controls should be considered before final selectionof personal protective equipment is made.

HEALTH EFFECTS FROM EXPOSURE:It should be noted that the effects from exposure to this product will depend on several factorsincluding: frequency and duration of use; quantity used; effectiveness of control measures; protectiveequipment used and method of application. Given that it is impractical to prepare a ChemAlert reportwhich would encompass all possible scenarios, it is anticipated that users will assess the risks andapply control methods where appropriate.

ACGIH American Conference of Governmental Industrial HygienistsCAS # Chemical Abstract Service number - used to uniquely identify chemical compoundsCNS Central Nervous SystemEC No. EC No - European Community NumberGHS Globally Harmonized SystemIARC International Agency for Research on CancerLC50 Lethal Concentration, 50% / Median Lethal ConcentrationLD50 Lethal Dose, 50% / Median Lethal Dosemg/m³ Milligrams per Cubic MetreOEL Occupational Exposure LimitPEL Permissible Exposure LimitpH relates to hydrogen ion concentration using a scale of 0 (high acidic) to 14 (highly

alkaline).ppm Parts Per MillionREACH Regulation on Registration, Evaluation, Authorisation and Restriction of ChemicalsSTEL Short-Term Exposure LimitSTOT-RE Specific target organ toxicity (repeated exposure)STOT-SE Specific target organ toxicity (single exposure)SUSMP Standard for the Uniform Scheduling of Medicines and PoisonsSWA Safe Work AustraliaTLV Threshold Limit ValueTWA Time Weighted Average

Abbreviations

Additional information

Page 6 of 7

SDS Date: 28 Jul 2014

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IDCIDE-20PRODUCT NAME

DescriptionRevision

Converted to GHS. 2.0

Initial SDS creation 1.0

Revision history

This document has been compiled by RMT on behalf of the manufacturer, importer or supplier of theproduct and serves as their Safety Data Sheet ('SDS').

It is based on information concerning the product which has been provided to RMT by themanufacturer, importer or supplier or obtained from third party sources and is believed to representthe current state of knowledge as to the appropriate safety and handling precautions for the productat the time of issue. Further clarification regarding any aspect of the product should be obtaineddirectly from the manufacturer, importer or supplier.

While RMT has taken all due care to include accurate and up-to-date information in this SDS, it doesnot provide any warranty as to accuracy or completeness. As far as lawfully possible, RMT acceptsno liability for any loss, injury or damage (including consequential loss) which may be suffered orincurred by any person as a consequence of their reliance on the information contained in this SDS.

Report status

Prepared by Risk Management Technologies 5 Ventnor Ave, West Perth Western Australia 6005 Phone: +61 8 9322 1711 Fax: +61 8 9322 1794 Email: [email protected] Web: www.rmt.com.au.

SDS date:

[ End of SDS ]

Revision:28 July 20142

Page 7 of 7

SDS Date: 28 Jul 2014

Page 46: Beharra Springs Gas Facility - Department of Mines

1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER

NDFT 377Synonym(s)

LOST CIRCULATION MATERIALUse(s)1.2 Uses and uses advised against

1.3 Details of the supplier of the product

NEWPARK DRILLING FLUIDS (AUSTRALIA) LTDSupplier name

11 Alacrity Place, Henderson, WA, 6166, AUSTRALIAAddress

+61 8 9410 8200Telephone

+61 8 9410 8299Fax

1800 127 406 (Australia); +64 4 917 9888 (International)Emergency

1.4 Emergency telephone number(s)

www.newpark.comWebsite

1.1 Product identifier

NDFT 376Product name

2. HAZARDS IDENTIFICATION

NOT CLASSIFIED AS HAZARDOUS ACCORDING TO SAFE WORK AUSTRALIA CRITERIA

2.2 Label elementsNo signal word, pictograms, hazard or precautionary statements have been allocated.

No information provided.2.3 Other hazards

2.1 Classification of the substance or mixture

3. COMPOSITION/ INFORMATION ON INGREDIENTS

Ingredient CAS Number EC Number Content

100%9004-34-6 232-674-9ORGANIC FIBRE(S)

3.1 Substances / Mixtures

4. FIRST AID MEASURES

If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised tostop by a Poisons Information Centre, a doctor, or for at least 15 minutes.

4.1 Description of first aid measures

Eye

If inhaled, remove from contaminated area. Apply artificial respiration if not breathing.Inhalation

If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.Continue flushing with water until advised to stop by a Poisons Information Centre or a doctor.

Skin

For advice, contact a Poisons Information Centre on 13 11 26 (Australia Wide) or a doctor (at once). Due toproduct form and application, ingestion is considered unlikely.

Ingestion

None allocated.First aid facilities

SDS Date: 21 Jun 2017

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NDFT 376PRODUCT NAME

See Section 11 for more detailed information on health effects and symptoms.4.2 Most important symptoms and effects, both acute and delayed

4.3 Immediate medical attention and special treatment neededTreat symptomatically.

5. FIRE FIGHTING MEASURES

Combustible. May evolve carbon oxides and hydrocarbons when heated to decomposition.5.2 Special hazards arising from the substance or mixture

Evacuate area and contact emergency services. Toxic gases may be evolved in a fire situation. Remain upwind and notify thosedownwind of hazard. Wear full protective equipment including Self Contained Breathing Apparatus (SCBA) when combating fire. Usewaterfog to cool intact containers and nearby storage areas.

5.3 Advice for firefighters

None allocated.

5.4 Hazchem code

Dry agent, carbon dioxide, foam or water fog. Prevent contamination of drains and waterways.5.1 Extinguishing media

6. ACCIDENTAL RELEASE MEASURES

Wear Personal Protective Equipment (PPE) as detailed in section 8 of the SDS. Clear area of all unprotected personnel. Contactemergency services where appropriate.

6.1 Personal precautions, protective equipment and emergency procedures

Prevent product from entering drains and waterways.6.2 Environmental precautions

Contain spillage, then collect and place in suitable containers for reuse or disposal. Avoid generating dust.6.3 Methods of cleaning up

See Sections 8 and 13 for exposure controls and disposal.6.4 Reference to other sections

7. HANDLING AND STORAGE

Store in a cool, dry, well ventilated area, removed from incompatible substances, heat or ignition sources and foodstuffs. Ensurecontainers are adequately labelled, protected from physical damage and sealed when not in use. Check regularly for leaks or spills.Large storage areas should have appropriate ventilation systems.

7.2 Conditions for safe storage, including any incompatibilities

No information provided.7.3 Specific end use(s)

7.1 Precautions for safe handling

Before use carefully read the product label. Use of safe work practices are recommended to avoid eye or skin contact and inhalation.Observe good personal hygiene, including washing hands before eating. Prohibit eating, drinking and smoking in contaminatedareas.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

8.1 Control parameters

Exposure standards

Ingredient ReferenceTWA STEL

ppm mg/m³ ppm mg/m³

Cellulose (paper fibre) (a) SWA (AUS) -- 10 -- --

SDS Date: 21 Jun 2017

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NDFT 376PRODUCT NAME

Biological limits

No biological limit values have been entered for this product.

PPE

Eye / Face Wear dust-proof goggles.

Hands Wear PVC or rubber gloves.

Body Not required under normal conditions of use.

Respiratory Where an inhalation risk exists, wear a Class P1 (Particulate) respirator.

Avoid inhalation. Use in well ventilated areas. Where an inhalation risk exists, mechanical explosion proofextraction ventilation is recommended. Maintain dust levels below the recommended exposure standard.

8.2 Exposure controlsEngineering controls

9. PHYSICAL AND CHEMICAL PROPERTIES

9.1 Information on basic physical and chemical propertiesYELLOW TO BROWN SOLIDAppearanceSLIGHT ODOUROdourCOMBUSTIBLEFlammabilityNOT AVAILABLEFlash pointNOT AVAILABLEBoiling pointNOT AVAILABLEMelting pointNOT AVAILABLEEvaporation rate7 to 8pHNOT AVAILABLEVapour density0.9 to 1.2Specific gravityINSOLUBLESolubility (water)NOT AVAILABLEVapour pressureNOT AVAILABLEUpper explosion limitNOT AVAILABLELower explosion limitNOT AVAILABLEPartition coefficientNOT AVAILABLEAutoignition temperatureNOT AVAILABLEDecomposition temperatureNOT AVAILABLEViscosityNOT AVAILABLEExplosive propertiesNOT AVAILABLEOxidising propertiesNOT AVAILABLEOdour threshold

10. STABILITY AND REACTIVITY

10.2 Chemical stability

Stable under recommended conditions of storage.

10.4 Conditions to avoid

Avoid heat, sparks, open flames and other ignition sources.

10.5 Incompatible materials

Incompatible with oxidising agents (e.g. hypochlorites), acids (e.g. nitric acid), heat and ignition sources.

Polymerization is not expected to occur.

10.3 Possibility of hazardous reactions

10.1 ReactivityCarefully review all information provided in sections 10.2 to 10.6.

SDS Date: 21 Jun 2017

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NDFT 376PRODUCT NAME

May evolve carbon oxides and hydrocarbons when heated to decomposition.10.6 Hazardous decomposition products

11. TOXICOLOGICAL INFORMATION

This product is expected to be of low acute toxicity. Under normal conditions of use, adverse health effectsare not anticipated.

Acute toxicity

Information available for the ingredient(s):

IngredientOral Toxicity (LD50) Dermal Toxicity (LD50) Inhalation Toxicity

(LC50)

> 5000 mg/kg (rat) > 2000 mg/kg (rabbit) > 5800 mg/m³/4 hoursORGANIC FIBRE(S)

Not classified as a skin irritant. Skin irritation is not anticipated under normal conditions of use.Skin

Not classified as an eye irritant. Eye irritation is not anticipated under normal conditions of use.Eye

Not classified as causing skin or respiratory sensitisation.Sensitisation

Not classified as causing organ damage from single exposure.STOT - singleexposure

Not relevant.Aspiration

Not classified as causing organ damage from repeated exposure.STOT - repeatedexposure

Not classified as a reproductive toxin.Reproductive

Not classified as a carcinogen.Carcinogenicity

Not classified as a mutagen.Mutagenicity

11.1 Information on toxicological effects

12. ECOLOGICAL INFORMATION

12.1 Toxicity

No information provided.

12.2 Persistence and degradabilityNo information provided.

12.4 Mobility in soil

No information provided.

No information provided.

12.5 Other adverse effects

12.3 Bioaccumulative potentialNo information provided.

13. DISPOSAL CONSIDERATIONS

Reuse or recycle where possible. Alternatively, ensure product is covered with moist soil to prevent dustgeneration and dispose of to an approved landfill site. Contact the manufacturer/supplier for additionalinformation (if required).

13.1 Waste treatment methods

Waste disposal

Dispose of in accordance with relevant local legislation.Legislation

14. TRANSPORT INFORMATION

NOT CLASSIFIED AS A DANGEROUS GOOD BY THE CRITERIA OF THE ADG CODE, IMDG OR IATA

SDS Date: 21 Jun 2017

Version No: 1.1ofPage 4 6

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NDFT 376PRODUCT NAME

LAND TRANSPORT (ADG) SEA TRANSPORT (IMDG / IMO) AIR TRANSPORT (IATA / ICAO)

None allocated.

None allocated. None allocated.

None allocated. None allocated.

None allocated.14.3 Transporthazard class

14.4 Packing Group

None allocated.

None allocated.

None allocated.

None allocated. None allocated.

None allocated.

14.1 UN Number

14.2 ProperShipping Name

No information provided.

14.5 Environmental hazards

None allocated.Hazchem code

14.6 Special precautions for user

15. REGULATORY INFORMATION

A poison schedule number has not been allocated to this product using the criteria in the Standard for theUniform Scheduling of Medicines and Poisons (SUSMP).

15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

Poison schedule

None allocated.Risk phrases

AUSTRALIA: AICS (Australian Inventory of Chemical Substances)All components are listed on AICS, or are exempt.

Inventory listing(s)

None allocated.Safety phrases

None allocated.Hazard codes

Safework Australia criteria is based on the Globally Harmonised System (GHS) of Classification andLabelling of Chemicals.

The classifications and phrases listed below are based on the Approved Criteria for Classifying HazardousSubstances [NOHSC: 1008(2004)].

Classifications

16. OTHER INFORMATION

EXPOSURE STANDARDS - TIME WEIGHTED AVERAGES: Exposure standards are established onthe premise of an 8 hour work period of normal intensity, under normal climatic conditions andwhere a 16 hour break between shifts exists to enable the body to eliminate absorbed contaminants.In the following circumstances, exposure standards must be reduced: Strenuous work conditions;hot, humid climates; high altitude conditions; extended shifts (which increase the exposure periodand shorten the period of recuperation).

COMBUSTIBLE - EXPLOSIVE CARBONACEOUS DUST: Carbonaceous/organic dusts have thepotential, with dispersion, to present an explosion hazard if an ignition source exists. All equipmentused to handle, transfer or store this product MUST BE cleaned thoroughly prior to cutting, welding,drilling or exposure to any other form of heat or ignition sources. If bulk stored, containers should beventilated on a routine basis to avoid vapour accumulation (where applicable, eg for flocculants).

PERSONAL PROTECTIVE EQUIPMENT GUIDELINES:The recommendation for protective equipment contained within this report is provided as a guideonly. Factors such as form of product, method of application, working environment, quantity used,product concentration and the availability of engineering controls should be considered before finalselection of personal protective equipment is made.

HEALTH EFFECTS FROM EXPOSURE:It should be noted that the effects from exposure to this product will depend on several factorsincluding: form of product; frequency and duration of use; quantity used; effectiveness of controlmeasures; protective equipment used and method of application. Given that it is impractical toprepare a report which would encompass all possible scenarios, it is anticipated that users willassess the risks and apply control methods where appropriate.

Additional information

SDS Date: 21 Jun 2017

Version No: 1.1ofPage 5 6

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NDFT 376PRODUCT NAME

ACGIH American Conference of Governmental Industrial HygienistsCAS # Chemical Abstract Service number - used to uniquely identify chemical compoundsCNS Central Nervous SystemEC No. EC No - European Community NumberEMS Emergency Schedules (Emergency Procedures for Ships Carrying Dangerous

Goods)GHS Globally Harmonized SystemGTEPG Group Text Emergency Procedure GuideIARC International Agency for Research on CancerLC50 Lethal Concentration, 50% / Median Lethal ConcentrationLD50 Lethal Dose, 50% / Median Lethal Dosemg/m³ Milligrams per Cubic MetreOEL Occupational Exposure LimitpH relates to hydrogen ion concentration using a scale of 0 (high acidic) to 14 (highly

alkaline).ppm Parts Per MillionSTEL Short-Term Exposure LimitSTOT-RE Specific target organ toxicity (repeated exposure)STOT-SE Specific target organ toxicity (single exposure)SUSMP Standard for the Uniform Scheduling of Medicines and PoisonsSWA Safe Work AustraliaTLV Threshold Limit ValueTWA Time Weighted Average

Abbreviations

This document has been compiled by RMT on behalf of the manufacturer, importer or supplier of theproduct and serves as their Safety Data Sheet ('SDS').

It is based on information concerning the product which has been provided to RMT by themanufacturer, importer or supplier or obtained from third party sources and is believed to representthe current state of knowledge as to the appropriate safety and handling precautions for the productat the time of issue. Further clarification regarding any aspect of the product should be obtaineddirectly from the manufacturer, importer or supplier.

While RMT has taken all due care to include accurate and up-to-date information in this SDS, itdoes not provide any warranty as to accuracy or completeness. As far as lawfully possible, RMTaccepts no liability for any loss, injury or damage (including consequential loss) which may besuffered or incurred by any person as a consequence of their reliance on the information containedin this SDS.

Report status

Risk Management Technologies 5 Ventnor Ave, West Perth Western Australia 6005 Phone: +61 8 9322 1711 Fax: +61 8 9322 1794 Email: [email protected] Web: www.rmt.com.au

Prepared by

[ End of SDS ]

SDS Date: 21 Jun 2017

Version No: 1.1ofPage 6 6

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1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER

Synonym(s) NEWZAN D • XANTHAN GUM (BIOPOLYMER)

DRILLING FLUID ADDITIVE • VISCOSITY MODIFIERUse(s)

1.2 Uses and uses advised against

1.3 Details of the supplier of the product

Supplier name NEWPARK DRILLING FLUIDS (AUSTRALIA) LTD

Address 11 Alacrity Place, Henderson, WA, 6166, AUSTRALIA

Telephone +61 8 9410 8200

Fax +61 8 9410 8299

1800 127 406 (Australia); +64 3 3530199 (International)Emergency

1.4 Emergency telephone number(s)

www.newpark.comWebsite

1.1 Product identifier

XANTHAN GUM (P)Product name

2. HAZARDS IDENTIFICATION

NOT CLASSIFIED AS HAZARDOUS ACCORDING TO SAFE WORK AUSTRALIA CRITERIA

2.2 Label elementsNo signal word, pictograms, hazard or precautionary statements have been allocated.

No information provided.2.3 Other hazards

2.1 Classification of the substance or mixture

3. COMPOSITION/ INFORMATION ON INGREDIENTS

Ingredient CAS Number EC Number Content

XANTHAN GUM >87%11138-66-2 234-394-2

WATER <13%7732-18-5 231-791-2

3.1 Substances / Mixtures

4. FIRST AID MEASURES

If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised tostop by a Poisons Information Centre, a doctor, or for at least 15 minutes.

4.1 Description of first aid measures

Eye

Inhalation If inhaled, remove from contaminated area. Apply artificial respiration if not breathing.

Skin If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.Continue flushing with water until advised to stop by a Poisons Information Centre or a doctor.

Ingestion For advice, contact a Poison Information Centre on 13 11 26 (Australia Wide) or a doctor (at once). Ifswallowed, do not induce vomiting. Ingestion is considered unlikely due to product form.

First aid facilities Eye wash facilities and safety shower should be available.

Page 1 of 6

SDS Date: 10 Feb 2015

Page 53: Beharra Springs Gas Facility - Department of Mines

XANTHAN GUM (P)PRODUCT NAME

Adverse effects not expected from this product under normal conditions of use.4.2 Most important symptoms and effects, both acute and delayed

4.3 Immediate medical attention and special treatment neededTreat symptomatically.

5. FIRE FIGHTING MEASURES

Combustible. May evolve toxic gases (carbon oxides, hydrocarbons) when heated to decomposition. Finely divided dust may formexplosive mixtures with air.

5.2 Special hazards arising from the substance or mixture

Evacuate area and contact emergency services. Toxic gases may be evolved in a fire situation. Remain upwind and notify thosedownwind of hazard. Wear full protective equipment including Self Contained Breathing Apparatus (SCBA) when combating fire. Usewaterfog to cool intact containers and nearby storage areas.

5.3 Advice for firefighters

None allocated.

5.4 Hazchem code

Dry agent, carbon dioxide, foam or water fog. Prevent contamination of drains and waterways.5.1 Extinguishing media

6. ACCIDENTAL RELEASE MEASURES

Wear Personal Protective Equipment (PPE) as detailed in section 8 of the SDS. Clear area of all unprotected personnel. Contactemergency services where appropriate.

6.1 Personal precautions, protective equipment and emergency procedures

Prevent product from entering drains and waterways.6.2 Environmental precautions

Contain spillage, then collect and place in suitable containers for reuse or disposal. Avoid generating dust.6.3 Methods of cleaning up

See Sections 8 and 13 for exposure controls and disposal.6.4 Reference to other sections

7. HANDLING AND STORAGE

Store in a cool, dry, well ventilated area, removed from incompatible substances and foodstuffs. Ensure containers are adequatelylabelled and tightly closed when not in use.

7.2 Conditions for safe storage, including any incompatibilities

No information provided.7.3 Specific end use(s)

7.1 Precautions for safe handling

Before use carefully read the product label. Use of safe work practices are recommended to avoid eye or skin contact and inhalation.Observe good personal hygiene, including washing hands before eating. Prohibit eating, drinking and smoking in contaminated areas.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

No exposure standards have been entered for this product.

8.1 Control parameters

Exposure standards

Biological limits

No biological limit values have been entered for this product.

Engineering controls Avoid inhalation. Use in well ventilated areas.8.2 Exposure controls

Page 2 of 6

SDS Date: 10 Feb 2015

Page 54: Beharra Springs Gas Facility - Department of Mines

XANTHAN GUM (P)PRODUCT NAME

PPE

Eye / Face Wear dust-proof goggles.

Hands Wear PVC or rubber gloves.

Body When using large quantities or where heavy contamination is likely, wear coveralls.

Respiratory Wear a Class P1 (Particulate) respirator. Where an inhalation risk exists, wear a Class P1 (Particulate)respirator.

9. PHYSICAL AND CHEMICAL PROPERTIES

9.1 Information on basic physical and chemical properties LIGHT BEIGE POWDERAppearanceSLIGHT ODOUROdourCOMBUSTIBLEFlammabilityNOT RELEVANTFlash pointNOT AVAILABLEBoiling pointNOT AVAILABLEMelting pointNOT AVAILABLEEvaporation rateNOT AVAILABLEpHNOT AVAILABLEVapour density1.5Specific gravityMISCIBLESolubility (water)NOT AVAILABLEVapour pressureNOT RELEVANTUpper explosion limitNOT RELEVANTLower explosion limitNOT AVAILABLEPartition coefficientNOT AVAILABLEAutoignition temperatureNOT AVAILABLEDecomposition temperatureNOT AVAILABLEViscosityNOT AVAILABLEExplosive propertiesNOT AVAILABLEOxidising propertiesNOT AVAILABLEOdour threshold

9.2 Other informationNOT AVAILABLE% Volatiles

10. STABILITY AND REACTIVITY

10.2 Chemical stability

Stable under recommended conditions of storage.

10.4 Conditions to avoid

Avoid heat, sparks, open flames and other ignition sources.

10.5 Incompatible materials

Incompatible with oxidising agents (e.g. hypochlorites) and acids (e.g. nitric acid).

May evolve carbon oxides and hydrocarbons when heated to decomposition.10.6 Hazardous decomposition products

Polymerization is not expected to occur.

10.3 Possibility of hazardous reactions

10.1 ReactivityCarefully review all information provided in sections 10.2 to 10.6.

11. TOXICOLOGICAL INFORMATION

Page 3 of 6

SDS Date: 10 Feb 2015

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XANTHAN GUM (P)PRODUCT NAME

Acute toxicity This product is expected to be of low toxicity. Under normal conditions of use, adverse health effects are notanticipated.

Skin Not classified as a skin irritant. Contact may result in mild irritation.

Eye Not classified as an eye irritant. Contact may cause discomfort, lacrimation and redness.

Sensitization This product is not known to be a skin or respiratory sensitiser.

No known effects from this product.STOT – singleexposure

Aspiration This product does not present an aspiration hazard.

No known effects from this product.STOT – repeatedexposure

Reproductive No evidence of reproductive effects.

Carcinogenicity No evidence of carcinogenic effects.

Mutagenicity No evidence of mutagenic effects.

11.1 Information on toxicological effects

12. ECOLOGICAL INFORMATION

12.1 Toxicity

No information provided.

12.2 Persistence and degradabilityNo information provided.

12.4 Mobility in soil

No information provided.

12.5 Other adverse effects

No information provided.

12.3 Bioaccumulative potentialNo information provided.

13. DISPOSAL CONSIDERATIONS

Waste disposal Ensure product is covered with moist soil to prevent dust generation and dispose of to approved Councillandfill. Contact the manufacturer/supplier for additional information (if required).

13.1 Waste treatment methods

Legislation Dispose of in accordance with relevant local legislation.

LAND TRANSPORT(ADG)

SEA TRANSPORT(IMDG / IMO)

AIR TRANSPORT(IATA / ICAO)

14.4 Packing Group None Allocated

None Allocated None Allocated

None Allocated None Allocated

None Allocated14.3 Transporthazard class

14.1 UN Number

14.2 ProperShipping Name

None Allocated

None Allocated

None Allocated

None Allocated None Allocated

None Allocated

No information provided14.5 Environmental hazards

None AllocatedHazchem code

14.6 Special precautions for user

NOT CLASSIFIED AS A DANGEROUS GOOD BY THE CRITERIA OF THE ADG CODE, IMDG OR IATA

14. TRANSPORT INFORMATION

15. REGULATORY INFORMATION

Page 4 of 6

SDS Date: 10 Feb 2015

Page 56: Beharra Springs Gas Facility - Department of Mines

XANTHAN GUM (P)PRODUCT NAME

Poison schedule A poison schedule number has not been allocated to this product using the criteria in the Standard for theUniform Scheduling of Medicines and Poisons (SUSMP).

15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

Risk phrases None allocated.

AUSTRALIA: AICS (Australian Inventory of Chemical Substances)All components are listed on AICS, or are exempt.

Inventory listing(s)

Safety phrases None allocated.

Hazard codes None allocated.

Safework Australia criteria is based on the Globally Harmonised System (GHS) of Classification andLabelling of Chemicals.

Classifications

The classifications and phrases listed below are based on the Approved Criteria for Classifying HazardousSubstances [NOHSC: 1008(2004)].

16. OTHER INFORMATION

RESPIRATORS: In general the use of respirators should be limited and engineering controlsemployed to avoid exposure. If respiratory equipment must be worn ensure correct respiratorselection and training is undertaken. Remember that some respirators may be extremelyuncomfortable when used for long periods. The use of air powered or air supplied respirators shouldbe considered where prolonged or repeated use is necessary.

PERSONAL PROTECTIVE EQUIPMENT GUIDELINES:The recommendation for protective equipment contained within this report is provided as a guideonly. Factors such as method of application, working environment, quantity used, productconcentration and the availability of engineering controls should be considered before final selectionof personal protective equipment is made.

HEALTH EFFECTS FROM EXPOSURE:It should be noted that the effects from exposure to this product will depend on several factorsincluding: frequency and duration of use; quantity used; effectiveness of control measures; protectiveequipment used and method of application. Given that it is impractical to prepare a ChemAlert reportwhich would encompass all possible scenarios, it is anticipated that users will assess the risks andapply control methods where appropriate.

ACGIH American Conference of Governmental Industrial HygienistsCAS # Chemical Abstract Service number - used to uniquely identify chemical compoundsCNS Central Nervous SystemEC No. EC No - European Community NumberEMS Emergency Schedules (Emergency Procedures for Ships Carrying Dangerous

Goods)GHS Globally Harmonized SystemGTEPG Group Text Emergency Procedure GuideIARC International Agency for Research on CancerLC50 Lethal Concentration, 50% / Median Lethal ConcentrationLD50 Lethal Dose, 50% / Median Lethal Dosemg/m³ Milligrams per Cubic MetreOEL Occupational Exposure LimitpH relates to hydrogen ion concentration using a scale of 0 (high acidic) to 14 (highly

alkaline).ppm Parts Per MillionSTEL Short-Term Exposure LimitSTOT-RE Specific target organ toxicity (repeated exposure)STOT-SE Specific target organ toxicity (single exposure)SUSMP Standard for the Uniform Scheduling of Medicines and PoisonsSWA Safe Work AustraliaTLV Threshold Limit ValueTWA Time Weighted Average

Abbreviations

Additional information

Page 5 of 6

SDS Date: 10 Feb 2015

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XANTHAN GUM (P)PRODUCT NAME

DescriptionRevision

Added Synonym. 1.3

Standard SDS Review 1.2

Standard SDS Review 1.1

Initial SDS creation 1.0

Revision history

This document has been compiled by RMT on behalf of the manufacturer, importer or supplier of theproduct and serves as their Safety Data Sheet ('SDS').

It is based on information concerning the product which has been provided to RMT by themanufacturer, importer or supplier or obtained from third party sources and is believed to representthe current state of knowledge as to the appropriate safety and handling precautions for the productat the time of issue. Further clarification regarding any aspect of the product should be obtaineddirectly from the manufacturer, importer or supplier.

While RMT has taken all due care to include accurate and up-to-date information in this SDS, it doesnot provide any warranty as to accuracy or completeness. As far as lawfully possible, RMT acceptsno liability for any loss, injury or damage (including consequential loss) which may be suffered orincurred by any person as a consequence of their reliance on the information contained in this SDS.

Report status

Prepared by Risk Management Technologies 5 Ventnor Ave, West Perth Western Australia 6005 Phone: +61 8 9322 1711 Fax: +61 8 9322 1794 Email: [email protected] Web: www.rmt.com.au.

SDS date:

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Revision:10 February 20151.3

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SDS Date: 10 Feb 2015