3. blast management plan v5.2 final - yorke.sa.gov.au

Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)

ML 6438 | EML 6439 | MPL 146

PEPR Submission Date: 02/02/2018

BLAST MANAGEMENT PLAN


ML 6438 | EML 6439 | MPL 146 i PEPR Submission Date: 02/02/2018

Table of Contents

DOCUMENT OWNER .................................................................................................. IV

DOCUMENT APPROVER ............................................................................................ IV

REVISION HISTORY .................................................................................................. IV

DEFINITION OF TERMS .............................................................................................. V

1. INTRODUCTION .............................................................................................. 1

1.1 ENVIRONMENTAL MANAGEMENT SYSTEM ........................................................................ 1

1.2 OBJECTIVES ............................................................................................................................ 1

2. BLASTING CONDITIONS................................................................................. 1

3. BLASTING CLAUSES ...................................................................................... 2

4. BASELINE MEASUREMENTS AND MODELLING ............................................. 3

5. UNCERTAINTY ASSESSMENT ........................................................................ 4

6. KEY RISKS ...................................................................................................... 5

7. BLASTING CONTROL MEASURES .................................................................. 5

7.1 KEY APPOINTMENTS AND RESPONSIBILITIES ................................................................... 6

7.2 AIR OVERPRESSURE AND VIBRATION CONTROL MEASURES ........................................ 7

7.3 FLY-ROCK CONTROL MEASURES ........................................................................................ 8

7.3.1 Determination of Blast Exclusion Zones .................................................................... 8

7.3.2 Establishing and Implementing a Blast Exclusion Zone ............................................ 9

7.3.3 Maintaining a Blast Exclusion Zone ........................................................................... 9

7.4 ADVERSE METEOROLOGICAL CONDITIONS ....................................................................10

7.5 PROTECTION OF UNDERGROUND UTILITIES ...................................................................10

7.6 TRAINING ...............................................................................................................................10

8. CONSULTATION ........................................................................................... 11

8.1 CONSULTATION WITH NEIGHBOURING RESIDENTS AND COMMUNITY .......................11

8.2 CONSULTATION WITH GOVERNMENT AGENCIES ...........................................................11

9. RESPONSE PROCEDURES ............................................................................ 11

9.1 OPERATIONAL RESPONSE PROCESS ...............................................................................11

9.2 EXCEEDANCE PROTOCOL ..................................................................................................12

9.3 COMMUNITY RESPONSE PROCESS ..................................................................................12

9.4 LANDOWNER NOTIFICATION ..............................................................................................13

10. MONITORING PROGRAM .............................................................................. 13


ML 6438 | EML 6439 | MPL 146 ii PEPR Submission Date: 02/02/2018

10.1 MONITORING METHODOLOGY ...........................................................................................13

10.2 MEASUREMENT EQUIPMENT ..............................................................................................13

10.3 PERMANENT MONITORING LOCATIONS ...........................................................................14

10.4 AD HOC MONITORING LOCATIONS ....................................................................................14

10.5 MONITORING RECORDS ......................................................................................................14

10.6 MONITORING LOCATIONS TYPE AND PURPOSE .............................................................15

10.7 DATA ANALYSIS ....................................................................................................................15

11. REPORTING .................................................................................................. 15

12. PERFORMANCE INDICATORS ...................................................................... 16

13. CONTINUAL IMPROVEMENT ........................................................................ 16

14. REVIEW ......................................................................................................... 16

15. REFERENCES ................................................................................................ 17

16. APPENDICES ................................................................................................ 18


ML 6438 | EML 6439 | MPL 146 iii PEPR Submission Date: 02/02/2018

List of Tables

Table 1: Human comfort criteria at residential premises .......................................................................... 3 Table 2: Vibration criteria for commercial and industrial buildings or structures ...................................... 3 Table 3 Vibration criteria for public or private buried utilities .................................................................... 3 Table 4: Proposed open pit blast design parameters for the Hillside Mine .............................................. 4 Table 5: Actions to be taken to check blasting related assumptions during early operations .................. 5 Table 6: AS 2187.2: Summary of blast design variables affecting vibration and air overpressure .......... 6 Table 7: Blasting control measures and responsibilities .......................................................................... 7 Table 8: Trigger Level .............................................................................................................................11 Table 9: Monitoring equipment purpose and location ............................................................................15

List of Figures

Figure 1: Sensitive receptor locations ....................................................................................................18 Figure 2: Hillside Mine blast monitoring plan ..........................................................................................19 Figure 3: Hillside Mine extent of vibration impacts from open pit blasting .............................................20 Figure 4: Hillside Mine extent of air overpressure impacts from open pit blasting .................................21 Figure 5: Hillside Mine blast exclusion fly-rock exclusion zone ..............................................................22

List of Appendices

Appendix 1: Location Maps

Appendix 2: Blasting Protocol and Blasting Schedule

Appendix 3: Correspondence Records

Appendix 4: Blast Management Plan Requirements Checklist


ML 6438 | EML 6439 | MPL 146 iv PEPR Submission Date: 02/02/2018

Document Owner

Sustainability Manager

Document Approver

Chief Mining Engineer

Revision History

Version No. Date Published Details

1.0 24/03/2017 First draft – Management review

2.0 29/05/2017 Technical Review - Resonate

3.0 01/06/2017 HMCV Draft copy

4.0 25/09/2017 Updated with DPC and HMCV comments

5.0 21/12/2017 Approved by Management – Ready for PEPR submission


ML 6438 | EML 6439 | MPL 146 v PEPR Submission Date: 02/02/2018

Definition of Terms

ACR Annual Compliance Report.

Air overpressure The pressure caused by a blast-generated shock wave over and above normal atmospheric pressure. It is measured in decibels using the linear weighting scale dB(Lin). Air overpressure is often below the range of human hearing. There are generally five sources of blast-generated air overpressure:

Air Pressure Pulse – Low frequency pressure caused by rock displacement at the face (piston-like movement or bulking of the rock mass)

Gas Release Pulse – High frequency pressure caused by gases venting through the face

Stemming Release Pulse – High frequency pressure caused by gases venting through the stemming

Rock Pressure Pulse – Typically insignificant air pressure generated by the ground vibration

Noise – High frequency energy from detonating cord or surface delays

BTL Blast Trigger Level

BMP Blast Management Plan

BOM Australian Government - Bureau of Meteorology

Burden and spacing

The distance from a blast hole to the rock free face – ie. the linear width of rock to be blasted by that blast hole. Spacing is the lateral distance between blast holes

dB Decibel - a unit of measurement used to express noise (or sound) level. It is based on a logarithmic scale

dB(Lin) or dBL Flat or Linear frequency response i.e. unweighted decibel level

DSD Department of State Development, South Australia

DPC Department of the Premier and Cabinet, South Australia

EFS Extended Feasibility Study

EMS Environmental Management System

EPA Environment Protection Agency, South Australia

GPS Global Positioning System

Hz Frequency is the number of times a vibrating object oscillates (moves back and forth) in one second. Fast movements produce high frequency sound (high pitch/tone), but slow movements mean the frequency (pitch/tone) is low. 1 Hz is equal to 1 cycle per second

HMCV Hillside Mine Community Voice

ISO14001:2015 International Standard Organisation Environmental Management Systems

MIC Maximum Instantaneous Charge (MIC), that is the explosive charge mass detonated per delay

ML Mineral Lease 643

MLP Mining Lease Proposal

MMS Multi-Media Messaging Service

mm/s Millimetres per second, unit of vibration velocity

PPV Peak particle velocity is the maximum vector sum of the three velocity components in vibrations, ie. longitudinal, transverse and vertical (measured in mm/s)


ML 6438 | EML 6439 | MPL 146 vi PEPR Submission Date: 02/02/2018

PVS Peak vector sum, measured in mm/s

QA/QC Quality Assurance/Quality Control

Rex Rex Minerals Ltd

ROM Run-of-mine

RSF Rock Storage Facility

SMS Short Message Service

TSF Tailings Storage Facility


ML 6438 | EML 6439 | MPL 146 1 PEPR Submission Date: 02/02/2018

1. INTRODUCTION

Rex Minerals Limited plans to develop and operate the Hillside Mine, situated 12 kilometres south of the

township of Ardrossan on the Yorke Peninsula, South Australia. Conventional open cut mining techniques

will be employed using trucks and excavators to deliver ore to a processing plant that will produce a

copper concentrate.

Blasting of ore and overburden can have impacts on the surrounding community. These impacts mainly

include fly-rock, vibration through the air (overpressure) and earth (ground vibration) and the generation

of dust and fumes. This Plan provides a description of the measures to be implemented by the Hillside

Mine to manage the impacts on these areas and comply with the conditions outlined within the ML, EML

and MPL conditions and other statutory requirements.

Impacts associated with fume, dust and odour from blasting activities are covered under the Air Quality

Management Plan (AQMP).

1.1 ENVIRONMENTAL MANAGEMENT SYSTEM

Rex Minerals is committed to minimising the impact of its operations on the local environment and

community, and is developing a comprehensive Environmental Management System (EMS) that will be

based on the International Standard 140001:2015. This Blast Management Plan (BMP) will be a

component of the Hillside Mine EMS.

1.2 OBJECTIVES

The objectives of this BMP are to provide a framework for:

ensuring compliance with all relevant statutory requirements;

Rex Minerals Policies and Standards;

implementing tools and practices to manage and minimise the impact of blasting from mining

operations on the environment and nearby residences;

providing details on blast management responsibilities; and

maintaining an effective response mechanism to deal with issues and complaints.

2. BLASTING CONDITIONS

The following Hillside Mine ML (Second Schedule) conditions relate to blasting.

15. The Tenement Holder must ensure that no fly-rock encroaches on third party property unless the Tenement Holder obtains a registered Waiver of Exemption under the Act to undertake mining activities that would include such an encroachment.

16. The Tenement Holder must notify property owners adjacent to and within the Land, subject to their consent, of all blasts no less than forty eight hours in advance of those blasts.

Explanatory Note: The consent required is for the notification of blasting, and not the blasting itself.

33. In accordance with section 70B(2)(d) of the Act it is a condition of the grant of the Mining Tenement that a proposed PEPR submitted in accordance with Part 10A of the Act must include reports from suitably qualified independent experts on the following matters:



33.1. The capacity of the Tenement Holder to achieve compliance with the Act and the Program in light of its management systems, personnel, policies, procedures, practices and resources.

33.2. The effectiveness of the proposed strategies in the proposed PEPR achieving the environmental outcomes identified in the proposed PEPR, including but not limited to reports from:

33.2.1. an Independent Mining and Blasting Expert (ie. for Blasting operations)

There are no Hillside Mine EML or MPL (Second Schedule) conditions that relate to blasting.

3. BLASTING CLAUSES

Blasting Outcome

The following Hillside Mine ML (Sixth Schedule) clauses relate to blasting

Blasting Outcome

9. The Tenement Holder must, in construction and operation, ensure that there are no adverse

impacts to:

9.1 public safety;

9.2 human comfort,

9.3 third party property (including stock),

9.4 adjacent land use,

9.5 aircraft, or

9.6 other receptors.

from airblast, fly-rock and vibration caused by blasting.

Blasting Strategies

10. The Tenement Holder is required to address the following matters for the purposes of Regulation

65(2)(c) of the Regulations in relation to the outcome in Sixth Schedule Clause 8;

10.1. develop strategies for the management of impacts from blasting, including the determination

of blast exclusion zones, in accordance with relevant standards including the Australian

Standard AS 2187.2;

10.2. develop strategies for establishing and implementing a blast exclusion zone between any

third party property, and the designated blast area, for all blasting events during mining

operations;

10.3. develop strategies to ensure that the blast exclusion zone is maintained between the public

and the designated blast area, for all blasting events during mining operations.

10.4. A blasting protocol and blasting schedule will be developed in consultation with residents of

land within and adjoining the Land to reflect the needs of the neighbouring land use practices

(including aerial crop dusting).



11. The Tenement Holder is required to address the following matters for the purposes of Regulation

65(2)(d) of the Regulations in relation to the outcome in Sixth Schedule Clause 8;

11.1. blasting criteria is set in accordance with the Australian Standard AS 2187.2.

11.2. Measurements taken to demonstrate achievement of the outcome in Sixth Schedule Clause 8 must

be taken in accordance with Australian Standard AS 2187.2.

There are no Hillside Mine EML or MPL (Sixth Schedule) conditions that relate to blasting.

With respect to Clause 11.1 the blasting criteria defined in the Australian Standards is listed below.

When assessing at sensitive receptors (ie. nearest residences), guidance is obtained from AS 2187.2 –

2006, Australian Standard “Explosives-Storage, transport and use Part 2: Use of explosives” (AS 2187.2).

Table 1, Table 2 and Table 3 below outline the criteria based on AS2187.2.

Table 1: Human comfort criteria at residential premises

Parameter Limits

Ground Vibration 5mm/s PPV for 95% of blasts per year, 10mm/s PPV maximum unless

agreement is reached with the occupier that a higher limit may apply

Air Overpressure 115 dB(Lin) for 95% of blasts per year, 120 dB(Lin) maximum unless

agreement is reached with the occupier that a higher limit may apply

Table 2: Vibration criteria for commercial and industrial buildings or structures

Parameter Limits

Ground Vibration 25mm/s PPV maximum

Table 3 Vibration criteria for public or private buried utilities

Parameter Limits

Ground Vibration 100mm/s PPV maximum

4. BASELINE MEASUREMENTS AND MODELLING

Baseline measurements of the air overpressure were carried out to demonstrate the influence of

environmental factors on air overpressure levels (Saros 2013). Saros undertook a study over a one

month period by correlating wind speed measurements with peak air overpressure levels recorded at

an adjacent location.

Over the one month monitoring duration, in excess of 370,000 air overpressure measurements were

obtained. The baseline study shows that even without blasting the background air overpressure can

exceed the ML limits of 115dBL level, with a maximum level in excess of 135dBL for more than 4,500

(>1%) non-blast related events (such as wind, lightening, trucks, trains and fireworks).



Saros modelled the air overpressure and vibration levels from proposed blasting for the Hillside Mine for

the original pit proposed in the MLP. The new EFS pit design is smaller in size than the MLP but uses the

same drill and blast parameters. The maximum size of individual blasts is smaller for the EFS pit design.

Therefore, the Saros air overpressure and vibration modelling can be considered conservative for the

EFS pit design as it was performed for the larger MLP design. The modelled levels of air overpressure

and vibration at the receptor locations is shown in Appendix 1 Figure 1: Location Maps. Receptors 17, 25

and 26 were not considered sensitive receptors at the time of modelling in the MLP because the larger

pit design required those places of residence to move to install a RSF and TSF and this is reflected in the

Location Map which was accurate in that context. The new EFS pit design now makes them sensitive

receptors, however they are still well outside modelled impacts of air overpressure, vibration and fly rock

as shown in Appendix 1 Figure 3 and Figure 4. The MLP exclusion zone distance for fly-rock from the

open pit perimeter was modelled to be 426 metres by Mining Plus (2012) and is also shown in Appendix

1 Location Maps. The same distance was used in the blast exclusion zone for flyrock in the smaller EFS

pit design.

5. UNCERTAINTY ASSESSMENT

The variability in the geology and rock strengths will be an important factor in the planning and design of

blasting practices. The modelling of blasting impacts including ground vibration and air overpressure,

were based on the proposed open pit design parameters for the MLP pit design, however they are exactly

the same as the smaller EFS pit design and are described in Table 4.

Table 4: Proposed open pit blast design parameters for the Hillside Mine

Parameter Type/Value

Bench Height 10 metres

Burden 6.0 – 7.0 metres*

Spacing 5.0 – 6.0 metres*

Blast Hole Diameter 229 millimetres

Stemming 3.5 metres

Subdrill 1.0 – 1.5 metres*

Explosive Type ANFO/Bulk Emulsion*

Powder Factor 0.6 – 0.9 kg/m3

Charge per Blast Hole Up to 350 kilograms

Initiation Pyrotechnic

*Variability dependent on the rock strength and ground conditions

The key actions to confirm assumptions for blasting are listed below in Table 5.



Table 5: Actions to be taken to check blasting related assumptions during early operations

Assumption Action

Drill and blast design

is representative of

modelling parameters

Review all drill and blast data through Quality control processes to ensure

parameters are as per the modelling assumptions, ie. stemming length.

Drill and blast design

is will ensure no

exceedance of criteria

Ensure ongoing drill and blast data and monitoring results to ensure that blasts

are well under the BTL trigger level 1. If they are not, then investigate the cause

and adjust blasting accordingly, ie. initiation timing and direction.

Weather influence on

air overpressure

Review air overpressure monitoring results with atmospheric measurements

from the site weather station compared with modelling to improve understanding

and adjust blasting accordingly.

Geology influence on

vibration

Review the vibration monitoring results with the geology including density, P-

wave and S-wave velocities compared with modelling to improve understanding

and adjust blasting accordingly.

Blast exclusion zone

clearance

Review all blast videos and recorded locations of fly-rock to confirm that the

modelled blast exclusion zone is adequate. If it is proposed to change the blast

exclusion zone distance based on historical blasting performance then an

application to do so will be made in accordance with the South Australia Mining

Act which will require a change to the PEPR.

Monitoring alerts

system

Calibration of trigger alerts system with levels to ensure adequate warning

ahead of time to respond to rising dust trends and avoid compliance criteria

exceedances.

6. KEY RISKS

Based on the modelling undertaken, the key potential blasting impacts associated with the Hillside Mine

are outlined below.

The Saros modelling shows that the air overpressure and vibration levels will be well under the ML

conditions using standard drill and blast practices.

The modelling shows extremely low risk of exceedance of the conditions for air overpressure and vibration

for sensitive receptors 34 and 35. After year 5, the fly-rock exclusion zone will extend into some small

areas used for agriculture within the ML along the western border of the pit. This requires a blasting

protocol and schedule developed in consultation with residents of land within and adjacent to the land to

reflect the needs of neighbouring land use practices.

Fume and dust from blasting activities are covered under the AQMP.

7. BLASTING CONTROL MEASURES

To mitigate potential air overpressure, vibration and fly-rock impacts from the Hillside Mine, a number of

management controls will be implemented throughout the life of the mine. These controls are detailed in

the following sub-sections.



The Australia Standard AS 2187.2 states the variables within and outside the control of blasting operators

and these are listed below in Table 6 for vibration and air overpressure.

Table 6: AS 2187.2: Summary of blast design variables affecting vibration and air overpressure

The Hillside Mine will plan to minimise the impact of variables listed outside the control of the blasting

operators (eg. weather conditions).

7.1 KEY APPOINTMENTS AND RESPONSIBILITIES

Nominated Responsible Person: that person who has overall responsibility and control over handling,

storage and use of explosives on the Mine Site. The names of the Nominated Responsible Person and

their assistant shall be entered into the Mine Record Book.

Development Supervisor: The supervisor(s) will be responsible for the day-to-day operations and

management of drilling and charging operations.

Production Supervisor: The supervisor(s) responsible for the day-to-day management and control of all

other pit activities such as load and haul operations.



Drill and Blast Engineer: The engineer(s) will be responsible for all aspects of the drill and blast planning,

design, and QA/QC systems and adherence.

Blast Controller: The person given ultimate responsibility, control and authority for the safety and success

of each blast. They are responsible for clearing personnel, livestock and equipment from the blast

exclusion zone.

Shotfirer: The person in charge of the firing of the shot. The Blast Controller and Shotfirer shall not be the

same person.

Blast Guard: The individual(s) supporting the Blast Controller in ensuring clearance distances are

observed and that the clearance area is secure.

Magazine Keeper: The individual who has been given the responsibility by the Nominated Responsible

Person to maintain the explosives magazines and maintain records in accordance with the required

legislation.

7.2 AIR OVERPRESSURE AND VIBRATION CONTROL MEASURES

Table 7 describes the control measures to mitigate air overpressure and vibration associated with blasting

activities at the Hillside Mine and summarises the responsibilities that have been documented within this

Plan. If blasting activity results in an adverse impact on amenity, all reasonable and practicable measures

will be taken to minimise further impacts from the activity. This includes (but is not limited to) the following

measures to the extent practicable:

Table 7: Blasting control measures and responsibilities

Blast control measures Responsibility Timing

Pre-blast planning

Determination of safe blast exclusion zone and location of Blast Guards. Blast Controller Ongoing

Conducting a pre-blast environmental assessment with consideration given to wind speed, direction, and meteorological conditions prior to each blast. Meteorological conditions will then be compared with historical Hillside Mine blasting outcomes. These will be further refined over time based on specific site conditions.

Blast Controller Ongoing

Use of an initiation sequence that minimises vibration. Drill and Blast Engineer

Ongoing

Use of adequate stemming lengths to ensure maximum confinement of explosive charges, whilst minimising fly-rock and air overpressure.

Drill and Blast Engineer

Ongoing

Use of suitable quality stemming material - being either crushed rock sourced from site or imported gravel when necessary.

Mining Manager Ongoing

Ensuring adequate burden is present on all faces and blast holes. Development Supervisor

Ongoing

Blasting at the Hillside Mine pit perimeters requires modified drill and blast practices including pre-splitting and buffer blasting to ensure fly-rock stays within the exclusion zone.

Drill and Blast Engineer

Ongoing

Adherence to blast loading and initiation designs unless risks are determined by the shot-firer at the time of loading that may be mitigated through changes to design.


Operational response processes and post blast learning

Operate in accordance with this BMP and implement procedures contained within this management plan.

All employees Ongoing



Ensure the blast and meteorological monitoring network is maintained and results are routinely analysed, assessed and reported.


In accordance with Section 10

Receiving, reporting and responding to any complaints in relation to blasting through the 24-hour community response line.


Ongoing

In the event of exceedance of the blast limits, the situation should be reported to the Operations Manager.

Operations Manager

Ongoing

Report the results of any blast monitoring in accordance with the ML conditions.


As required

Ensure that all employees and contractors are given adequate training in environmental awareness, legal responsibilities, and blast control methods.


Ongoing

Any corrective action as an operational response will be recorded and reported to the Senior Environment Advisor who is to keep a record of all significant proactive and reactive actions. The Community Relations Advisor must be informed of any complaint and details must be recorded in the complaints register in addition to response and actions taken.


Ongoing

Use of monitoring data and techniques to establish and refine predictive tools to estimate likely air overpressure and vibration levels during the design process of subsequent blasts.


7.3 FLY-ROCK CONTROL MEASURES

The generation of fly-rock is managed by incorporating appropriate controls in blast designs, as briefly

described in Table 7. These controls include design of stemming lengths and quality stemming materials

to minimise the potential for generating fly-rock, ensuring adequate burden is maintained to minimise the

risk of generating fly-rock due to face bursting. These measures, along with an appropriate exclusion

zone with relevant mine safety regulations, are used to ensure there is no damage or injury to personnel,

livestock, property, equipment, or power lines from fly-rock.

The Hillside Mine will use crushed rock stemming to improve stemming confinement and hence reduce

the chance of fly-rock and elevated blast air overpressure.

7.3.1 Determination of Blast Exclusion Zones

The blast exclusion zone for each blast will vary depending on the size and location of the blast (lateral

and vertical). The blast exclusion zone comprises an inner zone which is established prior to the loading

of shot and an outer zone which adjoins the boundary of the inner zone and is established prior to the

final connections of the initiation system. The inner exclusion zone allows work to continue in surrounding

areas during loading but prevents unauthorised access of personnel, plant and equipment. It will be

identified by blast cones, berms and signage. All personnel will be informed of this procedure during

induction. The outer exclusion zone defines areas where potentially fly-rock may land, and must be

cleared of personnel, livestock and machinery. An outer exclusion zone of 426 metres (Appendix 1

Location Maps) was determined by independent consultants (Mining Plus 2012). This assumed blasting

at surface on the perimeter of the pit. The road re-alignment of the Yorke Highway will take this road

outside the blast exclusion zone. The Hillside Mine design means this blast exclusion zone will provide

the desired protection from fly-rock. The horizontal distance of the blast exclusion zone will change with

time as the mining front moves both laterally and vertically. As the mining front gets deeper in the mine

the lateral and vertical extent blast exclusion zone at surface will become less because the walls will act

as a barrier. As the mining front moves slowly, and each individual blast is visually monitored, it will be

clear to Rex Management when it is necessary change the extent of the blast exclusion zone.



As the mining front moves south and west in year 5, the blast exclusion zone will occasionally extend on

to a small area of adjacent third-party property being used for agriculture. Rex Minerals will work with the

landowner to develop an agreed notification protocol (Appendix 2 Blasting Protocol and Blasting

Schedule). This protocol will include a clear plan indicating the blast location, proposed time and exact

extent of blast clearance area to facilitate planning and timing of agricultural activities including aerial

crop dusting.

All blasts will be internally reviewed by Rex Minerals for their performance. This information will be used

to continually reassess the adequacy of blast design controls in reducing the generation of fly-rock. The

information will also be used to reassess the size of the blast exclusion zone established for people and

livestock in the vicinity of a blast.

7.3.2 Establishing and Implementing a Blast Exclusion Zone

The Blast Controller will determine the blast exclusion zone for each blast. The Blast Controller will inspect

the areas before the establishment of the zone with the Shotfirer. Once an area is determined to be clear,

the Blast Controller will immediately assign the Blast Guards and their locations to prevent access to the

blast exclusion zone.

If the blast exclusion zone occurs on third party property, then the Blast Controller will survey the area

from a point of clear visibility from within the mine operational area with the assigned Blast Guard for that

location. This may include the use of drones. If the area is determined to be clear then the Blast Controller

will assign a Blast Guard to monitor the area in case personnel or livestock try to enter the blast exclusion

zone via third party adjacent property during maintenance of the blasting exclusion zone.

All Blast Guards must be competent and have a clear understanding of their duty. Prior to the blast, a

formal briefing shall be held with the Blast Guards to provide the clearance sheet and allocate guard

positions.

The Blast Guard shall proceed to the allocated guard position and will:

clear people from the area on their way;

block roads by parking across the road;

place Blast Guard signs facing oncoming traffic;

direct persons to park at least 20 metres back from the position, to the side of the road;

call ‘Hold the Shot’, and contact the Shotfirer or Blast Controller if any personnel, livestock, machinery

or approaching aircraft is noticed inside or travelling towards the blast exclusion zone.

7.3.3 Maintaining a Blast Exclusion Zone

Once guards are in position at their designated locations:

Fifteen minutes prior to the blast the Blast Controller is to notify the Mine via the designated channel

on the mine radio of the intention to blast.

All people near the blast area are to be made aware of the planned blast and understand the meaning

of the blast sirens and warning devices, which will be given 15 minutes before firing to warn people

that firing is imminent and to move from the firing zone.

The Blast Controller is to contact the Development Supervisor and advise that the fixed site siren on

the ROM pad can be activated.



All personnel will report to their Supervisors that they are outside the Blast Exclusion zone and

Supervisors will report to the Blast Controller that their people are accounted for.

The Shotfirer will inform the Blast Controller that the shot is ready for firing.

Once the Blast Guards are in position the Blast Controller shall sweep the operational area to ensure

no personnel are left inside the clearance area.

The Blast Controller then informs the Shotfirer that the area is clear and they may run out the lead

in line.

The Shotfirer then warns everyone that the shot is ready to fire.

The Blast Controller conducts a final check with all guards then notifies the Shotfirer that the shot is

ready to fire.

If a response is not received by the Blast Controller from a Blast Guard they will nominate a

responsible person to check and report on the failure to reply.

The Blast Controller’s call will include the location and time of firing.

The Shotfirer acknowledges then activates the tone generator on the radio and requests radio

silence.

The Shotfirer then sounds the siren and announces that the shot is about to be fired.

The siren is stopped and then the Shotfirer waits 10 seconds, then fires the shot if safe to do so.

If at any time the Blast Controller is concerned for the safety of persons and property they will abort

the blast.

7.4 ADVERSE METEOROLOGICAL CONDITIONS

The monitoring of current and forecast meteorological conditions will be used to assist in blast planning.

Occasionally, there will be meteorological conditions at the Hillside Mine site, or surrounding region, which

may give rise to situations that are unsuitable for blasting. Such conditions may include temperature

inversions and wind directions which may have the effect of focusing the sound waves from the blast site

at significant distances. Understanding the local meteorological conditions on blasting such as wind

direction and speed and temperature inversions will be the subject of further study over the early stages

of mine operation.

Data from the Hillside Mine weather station and particularly forecast data from the BOM, will be utilised

to identify the potential for temperature inversions.

7.5 PROTECTION OF UNDERGROUND UTILITIES

Given the significant distance between the Hillside Mine blasting locations and adjacent private land, it is

unlikely that any damage to underground or public utilities will occur given the level of ground vibration

required to cause this type of damage must be greater than 100mm/s PPV (see Table 3).

7.6 TRAINING

To ensure the effective implementation of this BMP, all Hillside Mine personnel and contractors will be

advised of blast management requirements as part of the Hillside Mine general induction. Additional blast

management training, including regular toolbox meetings as necessary, will be provided to personnel and

contractors who require specific skills or knowledge relating to blast impacts and mitigation.



8. CONSULTATION

8.1 CONSULTATION WITH NEIGHBOURING RESIDENTS AND COMMUNITY

Rex Minerals will maintain a weekly schedule of planned blasts which will be posted on the Hillside Mine

website, and on a noticeboard at the entrance to the mine. It should be noted that the weekly schedule

is subject to variation depending on daily factors, including variable weather, which may ultimately delay

a blast until conditions improve.

Rex Minerals will notify property owners adjacent to, and landowners within, the ML area of all blasts no

less than forty-eight hours in advance of those blasts subject to their consent (the consent required is for

the notification of blasting, and not the blasting itself), and at a closer time just prior to the blasts using

communication methods to be agreed with the community, likely to be via an SMS messaging system

(see Appendix 2 Blasting Protocol and Blasting Schedule).

Further to this, Rex Minerals will send out a group SMS message to those residents who have requested

to be on a blast notification list prior to blasting in order to avoid surprise and maintain good working

relationships. Residents will be able to request to be added to this blast notification list through the Hillside

Mine website or through direct contact with Rex Minerals.

8.2 CONSULTATION WITH GOVERNMENT AGENCIES

This BMP is being prepared in consultation with the DPC, the EPA and Safework SA.

9. RESPONSE PROCEDURES

9.1 OPERATIONAL RESPONSE PROCESS

Blasting is an instantaneous batch process, unlike air quality and noise. The permanent real-time blast

vibration and air overpressure monitors are to provide data in real-time with alert functions and to draw

attention to rising trends in the blasting at site. The primary recipient of alerts is the Mining Manager. The

alert will be based on a tier system with level 1 and 2 alerts. Previous baseline data of a nearby site has

shown that the air overpressure can exceed the ML criteria even without blasting. Therefore, air

overpressure exceedances will only be investigated if they occur at the exact time of blasting otherwise

there could be many false positive exceedances.

Proposed initial trigger levels are shown in Table 8. These should be evaluated and revised throughout

mining operations to ensure optimal performance and avoidance of exceedances.

Table 8: Trigger Level

Trigger

Level Leading Indicator Criteria Description response triggered

BTL 1 Vibration PPV >5 and

<10mm/s

Or

Air overpressure >115 and

<120dB(lin)

Or

Review current and planned operations considering:

Geology

Blast timing sequence and throw direction

Charge weight per hole

Stemming quantity and quality

Size of the blast

Current and forecasted weather conditions.



Trigger

Level Leading Indicator Criteria Description response triggered

Fly rock displacement >350

and <426m

Revised activities and additional blast restrictions may be applied or

planned as required. This is a prompt that compliance limit could be

exceeded for vibration and air overpressure if the rolling 12-month

average exceeds 5% of blasts.

BTL 2 Vibration PPV >=10mm/s

Or

Air overpressure >=120dB(lin)

Or

Fly rock Displacement

>=426m

Unless agreed with the property owner for a higher level, this trigger level

for vibration and air overpressure exceeds the ML criteria in Sixth

Schedule Clause 11.1. Whilst not necessarily an exceedance of

conditions if the fly-rock displacement exceeds 426m which considered

the minimum distance for the blast exclusion zone then this also will

trigger a BTL 2.

All blasting activities will cease and an independent blasting expert will be

employed to investigate the cause of the exceedance and report back to

the Mining Manager the proposed changes to blasting procedures to

prevent a re-occurrence.

9.2 EXCEEDANCE PROTOCOL

In situations where the results of blast monitoring exceed the ground vibration and air overpressure

criteria (refer Section 3), an investigation will be initiated to determine what actions need to be taken to

ensure further exceedances do not occur. Blasting consultants may be engaged to provide expert

analysis and interpretation of blasting results as part of an investigation into an exceedance of criteria.

The Minister of Mines will be notified of a breach of the ML conditions as per Regulation 87 of the South

Australia Mining Regulations 2011.

9.3 COMMUNITY RESPONSE PROCESS

All complaints received regarding operational blast activities will be responded to in accordance with the

established Hillside Mine procedure for complaints. This procedure details the obligations of the Hillside

Mine in regard to receiving, handling, responding to, and recording details of all community complaints.

Upon receipt of a complaint from the community, Rex Minerals will follow the standard complaints

management procedure which includes response times to provide feedback to the complainant.

Preliminary investigations will commence as soon as practicable to determine the likely causes of the

complaint using information such as the prevailing meteorological conditions, the nature of activities

taking place and recent monitoring results. A response will be provided as soon as practicable, which

may include the provision of relevant monitoring data.

Where specific complaints are received in relation to blast air overpressure, vibration and fly-rock at a

particular residence, portable attended monitoring units may be deployed in consultation with the

complainant to monitor future blast impacts at the relevant location.

Every effort will be made to ensure that concerns are addressed in a manner that facilitates a mutually

acceptable outcome for both the complainant and Rex Minerals.



Rex Minerals will record all community complaints into the site event management database in

accordance with the Hillside Mine complaints management procedure. The database will include

reporting, incident/event notification, close out action tracking, inspections, and audits. The trends of the

type, number, and time for resolution of complaints will be reported in the Annual Compliance Report

(ACR).

9.4 LANDOWNER NOTIFICATION

Condition 43 of the Second Schedule of the ML conditions requires the development of a

Communications and Operating Protocol with owners of adjacent land. This protocol will include

communications and issues management relating to blasting as specified in the Community Engagement

Plan. Clause 10.4 specifically relates to blasting and Rex Management at the Hillside Mine will notify

property owners and residents of land adjacent to and within the Land and the Operations Manager of

the local aerial crop dusting company, subject to their consent, of blasts as described in Appendix 2.

10. MONITORING PROGRAM

The monitoring program has been designed to ensure that adequate monitoring is undertaken to confirm

compliance with ML Sixth Schedule Clause 11 requiring blasting criteria is set in accordance with the

Australian Standard AS 2187.2 (refer Section 3). The program specifies monitoring requirements, and

provides guidelines on data analysis and reporting. Additional information relating to maintenance and

calibration of the monitoring system is also specified. Apart from the criteria specified in Section 3, Rex

Minerals will record all complaints and provide feedback of action taken in respect to the blasting

outcomes. Rex Minerals will monitor the trend of all complaints to see if the actions taken ensure that the

blasting outcomes of Clause 9 are being achieved.

10.1 MONITORING METHODOLOGY

The blast monitoring program will monitor peak air overpressure in dB(Lin) and vibration PPV in mm/s

associated with blasting activities. All aspects of blast monitoring will be conducted in accordance with

Australian Standard AS 2187.2. Flyrock displacement will be monitored using visual methods from blast

guards, permanent cameras or drones.

10.2 MEASUREMENT EQUIPMENT

Ground vibration will be measured with a tri-axial geophone with a flat frequency response to within 5%

over the frequency range 5 Hz to 250 Hz. For permanent monitoring stations, the geophone will be

attached to a mass of at least 30kg to ensure good coupling with the ground. The mass will be buried so

that its uppermost surface will be level with the ground surface.

Air overpressure will be measured with a microphone having a lower limiting frequency of 2 Hz (- 3 dB

response point of the measurement system) and a detector onset time of not greater than 100

microseconds as assessed in accordance with Australian Standard AS 1259.1 – 1990 Acoustics - Sound

level meters Non-integrating. The microphone will be located 1.2 to 1.5 metres above the ground.

Fly-rock displacement will be monitored by visual methods either by Blast Guards, permanent cameras,

or drones, and the final location recorded using a GPS.



10.3 PERMANENT MONITORING LOCATIONS

The Hillside Mine will install two permanent blast-monitoring systems for the life of the mine. These

systems will be automated and connected to the mine network to provide real-time vibration and air

overpressure data. The proposed monitoring locations are presented in Appendix 1 Location Maps.

The blast monitors will be calibrated in accordance with Australian Standard AS 2187.2. Copies of

calibration certificates will be filed and the date of last calibration recorded on each monitor.

10.4 AD HOC MONITORING LOCATIONS

In accordance with this Plan, ad hoc monitoring will be undertaken with portable units to assist in

measuring air overpressure and ground vibration at relevant locations surrounding the operation. The

intent of these measurements will be to confirm compliance at the nearest sensitive premises as well as

to enable learning on the propagation characteristics under the various meteorological conditions that

occur during blasting.

It is expected that these measurements will continue until sufficient data has been obtained to adequately

understand the propagation of air-blast overpressure under the typical range of prevailing meteorological

conditions encountered during blasting. This data will also be correlated with the permanent monitoring

locations to enable a typical propagation correction to be determined for the nearest sensitive premises.

The proposed monitoring locations are presented in Appendix 1 Location Maps.

In response to complaints, ad hoc monitoring may be undertaken (in consultation with the complainant)

where it is considered an appropriate response.

10.5 MONITORING RECORDS

The Hillside Mine will collect and record the following for each blast:

MIC in kilograms (kg);

location of the blast within the mine (including which bench level);

air overpressure level, dB(Lin) peak;

PVS in mm/s;

location, date and time of recording the MIC;

meteorological conditions from the Hillside Mine weather station (including temperature, relative

humidity, wind speed and direction), as well as the BOM forecast for the period of blasting;

information that can be used by a Geographic Information System to produce a map showing blast

location with respect to sensitive premises and measurement results at each monitoring location;

and

video record of the blast.

Permanent measurement equipment will be connected to the mine communications network and an

automatic notification sent to key mine personnel if an exceedance is registered to allow follow up actions

to occur quickly.



10.6 MONITORING LOCATIONS TYPE AND PURPOSE

The blast monitoring requirements for the Hillside Mine will cover two key areas, namely permanent and

ad hoc monitoring locations. The monitoring equipment’s purpose is provided in Table 9, with the

locations also identified in Appendix 1 Location Maps. The initial proposed monitoring locations may

change over the life of the mine after consultation with the DPC due to operational requirements.

Table 9: Monitoring equipment purpose and location

Site No.

Monitoring Equipment Monitoring Type / Frequency

Location

MGA Zone 53 (GDA94)

Purpose

W1 Weather Station Continuous 762,004E

6,177,076N

Record of meteorological conditions relating to all blasts

P1 Permanent vibration and air overpressure monitoring station

Continuous 763,263E

6,179,149N

Record of all blast events for life of mine

Residential compliance

P2 Permanent vibration and air overpressure monitoring station

Continuous 762,371E

6,172,675N

Record of all blast events for life of mine


B1 Portable vibration and air overpressure monitoring unit

Ad hoc

765,667 E

6,178,851N



Ad hoc

760,175E

6,175,171N



Ad hoc

764,161E

6,171,238N



Ad hoc

764,379E

6,176,042N


10.7 DATA ANALYSIS

Following the completion of blasting, the blast results for each monitoring location (see Section 10.6) are

reviewed for compliance with blasting criteria for ground vibration and air overpressure (see Section 3).

The percentage of blasts within each of the criteria (as defined by Australian Standard AS 2187.2) will be

calculated at each monitoring location against the total number of blasts on a rolling 12-month basis.

11. REPORTING

The reporting and notification of blast results that exceed the blast criteria will be undertaken in

accordance with the Hillside Mine procedure for complaints.

In the event that the monitoring results from a blast identify an exceedance of the ground vibration or air

overpressure criteria at any of the blast monitoring locations, Rex Minerals will conduct investigations to

ascertain the cause of the exceedance.



Rex Minerals will prepare a detailed report outlining the results of the investigation and may provide the

relevant agencies with the report which will:

identify the date, time and scale of the exceedance;

identify the cause or likely cause of the exceedance;

describe the actions taken in relation to the exceedance; and

identify any measures being undertaken to minimise the risk of future exceedance of blasting criteria.

Rex Minerals will implement any recommendations as a result of the investigation, in order to minimise

or prevent any future blast exceedances.

The Hillside Mine will report on the performance of the BMP including all compliance monitoring results

in the ACR and provide regular updates to members of the HMCV consultation group. The ACR will be

provided to the HMCV and made available for public information on the Rex Minerals website.

12. PERFORMANCE INDICATORS

The following performance indicators will be measured against the Hillside Mine ML conditions:

compliance with relevant blasting criteria at monitoring locations, in particular those representative

of sensitive receptor locations;

minimisation of blasting complaints as evidenced by trends in the frequency and extent of complaints;

and

compliance with this Plan, as indicated by internal and statutory reporting.

13. CONTINUAL IMPROVEMENT

The Hillside Mine will strive to continually improve on the mine’s environmental and operational

performance by applying the principles of best practice to mining operations, including where cost-

effective and practicable, the adoption of new best practice technologies and improved blast control

measures. Progress will be monitored using the performance indicators in Section 12.

14. REVIEW

This Plan will be reviewed, and if necessary revised, to the satisfaction of the DPC (in consultation with

relevant government agencies):

following changes to the project approval or licence conditions relating to blast management or

monitoring;

following significant incidents at the Hillside Mine relating to blasting;

following the conduct of an independent environmental audit which requires changes to the BMP or

to the blast monitoring practices;

if there is a relevant change in technology or legislation; or

annually.



15. REFERENCES Australian Standard AS 2187.2-2006 ‘Explosives - Storage, transport and use Part 2: Use of explosives'.

EPA - Environmental Protection Licence (application to be submitted for approval prior to project commencement).

Rex Minerals Ltd, Hillside Mine Mineral Lease Application.

Government of South Australia, Mineral Lease 6438, 16 September 2014.

Saros, Hillside Mine Blasting Impact Assessment, 8 March 2013.

Hillside Mine blasting standard operating procedures.

Hillside Mine – Description of the Mining Operations.

Mining Plus, Rex Minerals Ltd. Drill and Blast Management Plan Rev 1.4 (2012).

Australian Standard AS 1259.1 – 1990 Acoustics - Sound level meters Non-integrating.



16. APPENDICES

Appendix 1: Location Maps

Figure 1: Sensitive receptor locations



Figure 2: Hillside Mine blast monitoring plan



Figure 3: Hillside Mine extent of vibration impacts from open pit blasting



Figure 4: Hillside Mine extent of air overpressure impacts from open pit blasting



Figure 5: Hillside Mine blast exclusion fly-rock exclusion zone



Appendix 2: Blasting Protocol and Blasting Schedule

Rex Management at the Hillside Mine will endeavour to limit production blasting to once a day at 1:00pm.

Rex Management will apply for a No-Fly-Zone over the final pit outline as a safety precaution. This will

not restrict aircraft from carrying out normal aerial crop dusting activities on adjacent land and third party

property.

Rex Management at the Hillside Mine will notify property owners and residents of land adjacent to and

within the Land, subject to their consent (consent being defined as per ML 6438):

of all blasts no less than 48 hours in advance of those blasts;

any change in the time of the blasts that has been previously communicated at least 48 hours prior

to blasting, as soon as a decision to change the blast time has been made.

The preferred method of communication, unless otherwise requested, of the blasts will be via SMS to the

property owners and residents and any other people as requested by either the property owners or

residents.

The blast exclusion zone will move with the mining front over time.

Rex Management will notify the affected property owners, residents and the Operations Manager of the

local crop dusting company (Aerotech) subject to their consent:

when the blast exclusion zone occurs on adjacent land and third-party property no less than 48 hours

in advance of those blasts. Notification will include the date, time, duration and location of the blast

exclusion zone;

any change in the date, time, duration and location of the blast exclusion zone that has been

previously communicated at least 48 hours prior to blasting as soon as a decision to change the blast

exclusion zone has been decided.

The preferred method of communication, unless otherwise requested, of the blasts will be via SMS and

MMS for the location to the property owners, residents and Operations Manager of the local aerial crop

dusting company and any other people requested by either the property owners, residents and the

Operations Manager of the local crop dusting company.



Appendix 3: Correspondence Records

Key relevant communications with DSD, DPC, Safework SA, EPA and the community relating to this

management plan are detailed below.

Date Communication with: Action or Outcomes

23/03/2017 DSD Outline of proposed management plan and monitoring program structure.

03/04/2017 HMCV Outline presented by Rex Minerals of content of proposed Blast Management Plan and Blast Monitoring Program.

13/04/2017 DSD Updated on status of plan development.



Appendix 4: Blast Management Plan Requirements Checklist

Condition Requirement Section

Rex Minerals Hillside Mine Mineral Lease Conditions (ML 6438) Second Schedule

Blasting

15. The Tenement Holder must ensure that no flyrock encroaches on third party

property unless the Tenement Holder obtains a registered Waiver of Exemption

under the Act to undertake mining activities that would include such an

encroachment.

2, 6, 7.2, 8.1, Appendix 1

16. The Tenement Holder must notify property owners adjacent to and within the Land,

subject to their consent, of all blasts no less than forty eight hours in advance of

those blasts.

Explanatory Note: The consent required is for the notification of blasting, and not the blasting

itself.

2, 8, Appendix 2

Additional Information in the Program

33. In accordance with section 70B(2)(d) of the Act it is a condition of the grant of the

Mining Tenement that a proposed PEPR submitted in accordance with Part 10A of

the Act must include reports from suitably qualified independent experts on the

following matters:

33.2 The effectiveness of the proposed strategies in the proposed PEPR achieving the

environmental outcomes identified in the proposed PEPR, including but not limited

to reports from:

33.2.1 An Independent Mining and Blasting Expert (i.e.: for Blasting operations) 4, 5, 6, Appendix 4

Communication Protocol

43. The Tenement Holder must develop (in consultation with the owners of land and to

the satisfaction of the Director of Mines) a communication and operating protocol

between itself and owners of land adjacent to and on the Land prior to the

commencement of mining operations that includes the following matters:

2, 3, 7.2, 8, 9, Appendix 2

43.1 Interaction with landholder operations;

43.2 emergency procedures;

43.3 communications and issue management processes;

43.4 land management;

43.5 dispute resolution;

43.6 ongoing communication about the Tenement Holder’s operations;




43.7 receiving and considering feedback;

43.8 safety procedures;

43.9 access protocols; and

43.10 any matters identified by the Director of Mines in writing.

44. The Tenement Holder must maintain and adhere to the protocol to the satisfaction

of the Director of Mines for the term of the Mining Tenement.

2, 3, 7.2, 8, 9.3, 9.4, 11,

Appendix 2

Complaints Register

45 The Tenement Holder must operate a 24 hour per day, 7 day per week, free-call

telephone complaints line for the purpose of receiving complaints from members of

the public in relation to mining operations.

9.3, 9.4, 11,

Appendix 2

46. The Tenement Holder must take reasonable measures to notify the public of the

complaints line telephone number and the fact that it is a complaints line.

9.3, 9.4, 11

Appendix 2

47. The Tenement Holder must establish and maintain a public complaints register. The

public complaints register must, as a minimum, record the following detail in relation

to each compliant received in which it is alleged that environmental harm (including

an environmental nuisance) has been caused by the mining operations:

9.3, 11,

Appendix 2

Appendix 5

47.1 the time at which the complaint was received;

47.2 all personal details of the complainant which were provided by the complainant or,

if no such details were provided, a note to that effect;

47.3 the subject-matter of the complaint;

47.4 the action taken by the tenement holder in relation to the complaint, including any

follow-up contact with the complainant; and

47.5 if no action was taken by the tenement holder, the reasons why no action was taken.

48. All records in respect of the public complaints must be maintained for a period of at

least 7 years. Appendix 2

49. The Tenement Holder must make the public complaints register publicly available

except for the name and contact details of each complainant. 11, Appendix 2

Rex Minerals Hillside Mine Miscellaneous Purposes Licence Conditions (MPL 146) Second Schedule

There are no Hillside Mine MPL conditions (Second Schedule) relating to blasting.

Rex Minerals Hillside Mine Extractive Minerals Lease Conditions (EML 6439) Second Schedule

There are no Hillside Mine EPL conditions (Second Schedule) relating to blasting.




Rex Minerals Hillside Mine Mineral Lease Conditions (ML 6438) Sixth Schedule

Blasting Outcome

9. The Tenement Holder must, in construction and operation, ensure that there are no

adverse impacts to:

2, 3, 4, 6, 7, 10

9.1 Public safety.

9.2 Human comfort,

9.3 Third party property including stock),

9.4 Adjacent land use,

9.5 Aircraft, or

9.6 Other receptors,

from airblast, flyrock and vibration caused by blasting

Blasting Strategies

10. The Tenement Holder is required to address the following matters for the purposes

of Regulation 65(2)(c) of the Regulations in relation to the outcome in Sixth

Schedule Clause 8;

10.1 Develop strategies for the management of impacts from blasting, including the

determination of blast exclusion zones, in accordance with relevant standards

including the Australian Standard AS 2187.2;

2, 4, 7, 7.2

10.2 Develop strategies for establishing and implementing a blast exclusion zone

between any third party property, and the designated blast area, for all blasting

events during mining operations;

2, 4, 7.2

10.3 Development strategies to ensure that the blast exclusion zone is maintained

between the public and the designated blast area, for all blasting events during

mining operations.

2, 4, 7.2

10.4 A blasting protocol and blasting schedule will be developed in consultation with

residents of land within and adjoining the Land to reflect the needs of the

neighbouring land use practices (including aerial crop dusting).

8.1, Appendix 2

11. The Tenement Holder is required to address the following matters for the purposes

of Regulation 65(2(d) of the Regulations in relation to the outcome in Sixth Schedule

Clause 8;

11.1 Blasting criteria is set in accordance with the Australian Standard AS 2187.2. 3, 7




11.2 Measurements taken to demonstrate achievement of the outcome in Sixth

Schedule Clause 8 must be taken in accordance with Australian Standard AS

2187.2.

10, 10.1, 10.2, 10.3, 10.7

Rex Minerals Hillside Mine Miscellaneous Purposes Licence Conditions (MPL 146) Sixth Schedule

There are no Hillside Mine MPL conditions (Second Schedule) relating to blasting.

Rex Minerals Hillside Mine Extractive Minerals Lease Conditions (EML 6439) Sixth Schedule

There are no Hillside Mine EPL conditions (Second Schedule) relating to blasting.

3. blast management plan v5.2 final - yorke.sa.gov.au

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