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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
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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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)
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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:
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
ML 6438 | EML 6439 | MPL 146 2 PEPR Submission Date: 02/02/2018
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).
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
ML 6438 | EML 6439 | MPL 146 3 PEPR Submission Date: 02/02/2018
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).
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
ML 6438 | EML 6439 | MPL 146 4 PEPR Submission Date: 02/02/2018
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.
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
ML 6438 | EML 6439 | MPL 146 5 PEPR Submission Date: 02/02/2018
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.
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
ML 6438 | EML 6439 | MPL 146 6 PEPR Submission Date: 02/02/2018
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.
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
ML 6438 | EML 6439 | MPL 146 7 PEPR Submission Date: 02/02/2018
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.
Mining Manager Ongoing
Operational response processes and post blast learning
Operate in accordance with this BMP and implement procedures contained within this management plan.
All employees Ongoing
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
ML 6438 | EML 6439 | MPL 146 8 PEPR Submission Date: 02/02/2018
Ensure the blast and meteorological monitoring network is maintained and results are routinely analysed, assessed and reported.
Sustainability Manager
In accordance with Section 10
Receiving, reporting and responding to any complaints in relation to blasting through the 24-hour community response line.
Sustainability Manager
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.
Sustainability Manager
As required
Ensure that all employees and contractors are given adequate training in environmental awareness, legal responsibilities, and blast control methods.
Sustainability Manager
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.
Sustainability Manager
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.
Mining Manager Ongoing
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.
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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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.
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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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.
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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.
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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.
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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.
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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.
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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
Residential compliance
B1 Portable vibration and air overpressure monitoring unit
Ad hoc
765,667 E
6,178,851N
Residential compliance
B2 Portable vibration and air overpressure monitoring unit
Ad hoc
760,175E
6,175,171N
Residential compliance
B3 Portable vibration and air overpressure monitoring unit
Ad hoc
764,161E
6,171,238N
Residential compliance
B4 Portable vibration and air overpressure monitoring unit
Ad hoc
764,379E
6,176,042N
Residential compliance
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.
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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.
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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.
Hillside Copper Mine Blast Management Plan Program for Environment Protection and Rehabilitation (PEPR)
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16. APPENDICES
Appendix 1: Location Maps
Figure 1: Sensitive receptor locations
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Figure 2: Hillside Mine blast monitoring plan
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Figure 3: Hillside Mine extent of vibration impacts from open pit blasting
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Figure 4: Hillside Mine extent of air overpressure impacts from open pit blasting
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Figure 5: Hillside Mine blast exclusion fly-rock exclusion zone
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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.
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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.
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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;
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Condition Requirement Section
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.
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Condition Requirement Section
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
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Condition Requirement Section
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.