Data as at 14 September 2026 · from the Queensland EP Act public register
EPML00977513 · MOUNT ISA MINES LIMITED
Minerals environmental authority EPML00977513 (MOUNT ISA MINES LIMITED), Granted. 355 conditions indexed. No PRC plan.
- Status
- Granted
- Holders
- MOUNT ISA MINES LIMITED
- Tenures
- ML2484; ML2485; ML2721; ML2722; ML2723; ML2724; ML2725; ML2726; ML2727; ML5414; ML5424; ML5432; ML5434; ML5576; ML8058
- PRC plan
- None
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
355 numbered conditions read from the current instrument. Page numbers link into the register PDF.
- A1
This environmental authority authorises environmental harm caused by the carrying out of mining activities by the holder of this environmental authority. Where mining activities are undertaken in accordance with the conditions of this environmental authority, environmental harm caused in compliance with the conditions is taken to be authorised. Where there is no condition or this environmental authority is silent on a matter, the lack of a condition or silence shall not be construed as authorising environmental harm.
- A2
In carrying out the mining activities, the holder of the environmental authority must comply with Appendix 2 (Authorised Mining Activities). Maintenance of Measures, Plant and Equipment
- A3
The holder must: (a) install all measures, plant and equipment necessary to ensure compliance with the conditions of this environmental authority; (b) maintain such measures, plant and equipment in a proper and efficient condition; (c) operate such measures, plant and equipment in a proper and efficient manner; (d) ensure all instruments and devices used for the measurement or monitoring of any parameter under any condition of this environmental authority are calibrated, and appropriately operated and maintained.
- A4
No change, replacement or alteration of any plant or equipment is permitted if the change, replacement or alteration materially increases, or is likely to materially increase, the risk of environmental harm caused by the mining activities. Plans, Systems, Programs and Monitoring
- A5
If a condition of this environmental authority requires the holder to prepare a plan or a program, the holder of this environmental authority may include such plan or program in its Plan of Operations.
- A6
Any management or monitoring plans, systems or programs required to be developed and implemented by a condition of this environmental authority must be reviewed for effectiveness in minimising the likelihood of environmental harm on an annual basis, or in accordance with the timeframe as otherwise specified in this environmental authority, and amended promptly if required.
- A7
Monitoring records or reports required under this environmental authority must be maintained and be readily accessible at the place to which this environmental authority relates for a period of not less than five (5) years.
- A8
The holder of this environmental authority must, upon request from the administering authority, supply monitoring records, plans and reports in the form and by the means requested by the administering authority within fourteen (14) days, or a timeframe otherwise agreed between the administering authority and the holder of this environmental authority. Financial assurance
- A9
The holder of this environmental authority must provide financial assurance of an amount determined by the administering authority in accordance with the most recent edition of the administering authority's Guideline - Calculating financial assurance for mining projects, and in a form acceptable to the administering authority.
- A10
The financial assurance must remain in force until the administering authority is satisfied no claim on the financial assurance will be required. Permit OFFICIAL Environmental Authority Risk management
- A11
The holder of this environmental authority must maintain a risk management system for mining activities which conforms to the Standard for Risk Management (ISO31000:2009) or the Standard for Environmental Management Systems (ISO14001:2004), or the latest edition of the equivalently recognised Standard. Emergency Response / Contingency
- A12
Within six (6) months of the commencement of this environmental authority, the holder of this environmental authority must develop and implement an emergency response/contingency plan to respond to emergency events and incidents.
- A13
The emergency response/contingency plan required under condition A12 must address the following matters as a minimum: (a) response procedures to be implemented to prevent or minimise the risk of environmental harm arising from incidents; (b) response procedures to minimise the extent and duration of environmental harm caused by an incident; (c) the practices and procedures to be employed to restore the environment or mitigate any environmental harm caused; (d) the resources to be used in response to an incident; (e) procedures to investigate the cause of any incidents, including releases, and where necessary, implement remedial actions to reduce the likelihood of recurrence of similar events; (f) the provision and availability of documented procedures to staff attending any incident to enable them to effectively respond; (g) training of staff that will be called upon to respond to incidents to enable them to effectively respond; (h) timely and accurate reporting of the circumstance and nature of incidents to the administering authority in accordance with conditions of this environmental authority; (i) procedures for accessing monitoring points during incidents; (j) procedures to notify any potentially impacted person or group of persons who may be affected by the event. Notification of Incidents and Exceptions
- A14
The holder of this environmental authority must notify the administering authority either by telephone, email or facsimile promptly but within forty-eight (48) hours, after becoming aware of any incident which results in the release of contaminants not in accordance, or reasonably expected to be not in accordance with the conditions of this environmental authority.
- A15
The holder of this environmental authority must notify the administering authority either by telephone, email or facsimile promptly but within forty-eight (48) hours, after becoming aware of any monitoring result that demonstrates an exceedance of any limit imposed in this environmental authority.
- A16
The notification required under condition A14 must include, but not be limited to, the following: (a) the environmental authority number and name of the holder; (b) the name and telephone number of the designated contact person; (c) the location of the incident; (d) the date and time of the incident; (e) the time the holder of the environmental authority became aware of the incident; (f) the estimated quantity and type of substances involved in the incident; (g) the cause of the incident if known; (h) a description of the nature and effects of the incident including environmental risks, and any risks to public health or livestock; (i) any sampling conducted or proposed, relevant to the incident; (j) immediate actions taken to prevent or mitigate any further environmental harm caused by the incident; Permit OFFICIAL Environmental Authority (k) what notification to person or persons who may be affected by the incident has occurred/is being undertaken.
- A17
Within fifteen (15) business days, or a timeframe otherwise agreed between the holder of this environmental authority and the administering authority, following the initial notification of an incident, or receipt of monitoring results, whichever is the latter, further written advice must be provided to the administering authority, including the following: (a) results and interpretation of any samples taken and analysed; (b) outcomes of actions taken at the time to prevent or minimise unlawful environmental harm; and (c) proposed actions to prevent a recurrence of the incident. Complaints
- A18
The holder of this environmental authority must record all environmental complaints received about the mining activities including the following details: (a) name, address and contact number for complainant; (b) time and date of complaint; (c) reasons for the complaint; (d) investigations undertaken; (e) conclusions formed; (f) actions taken to resolve complaint; (g) any abatement measures implemented; and (h) person responsible for resolving the complaint.
- A19
When requested by the administering authority, the holder of this environmental authority must undertake relevant specified monitoring within a timeframe nominated by the administering authority to investigate any complaint of environmental harm. The results of the investigation (including an analysis and interpretation of the monitoring results) and abatement measures implemented must be provided to the administering authority within fifteen (15) business days of completion of the investigation, and no later than fifteen (15) business days after the end of the timeframe nominated by the administering authority to undertake the investigation. Community
- A20
The holder of this environmental authority must establish, promote and maintain easily accessible lines of communication between residents, local businesses, community members, land owners and temporary residents, reasonably expected to be affected by the mining activities. This must include but not be limited to the following: (a) regular public community forums at intervals of not less than six (6) months; or (b) the establishment of a consultative committee with representation from local businesses, residents and other relevant community members that meets at regular intervals as determined by the committee. Third party auditing
- A21
Compliance with the conditions of this environmental authority must be audited by an appropriately qualified third party auditor, nominated by the holder, within one (1) year of the commencement of this environmental authority, and then at regular intervals not exceeding three (3) years.
- A22
Within one (1) month of receiving the final version of the third party auditor's report, the holder of this environmental authority must submit a copy to the administering authority. Within three (3) months of providing a copy of the final report to the administering authority, the holder of this environmental authority must provide a written report to the administering authority addressing the: (a) actions taken, or proposed to be taken, by the holder to ensure compliance with this environmental authority; (b) actions taken to prevent a recurrence of any non-compliance issues identified by the audit.
- A23
The third party auditor must certify the independent findings of the audit in the report. Permit OFFICIAL Environmental Authority
- A24
The financial costs of the third party audit are the responsibility of the holder of this environmental authority.
- A25
The holder of this environmental authority must as soon as practicable act upon any recommendations arising from the final issued audit report by: (a) investigating any non-compliance issues identified by the audit; (b) implementing measures or taking necessary action to ensure compliance with the requirements of this environmental authority. Exploration
- A26
Disturbance due to exploration activities in areas not scheduled to be mined must be rehabilitated in accordance with provisions detailed in the administering authority's Eligibility criteria and standard conditions for exploration and mineral development projects. Abrasive Blasting
- A27
Where reasonable and practicable, abrasive blasting and metal surface coating must be carried out inside buildings or spray booths, so as to contain spent blasting media and other material.
- A28
Where reasonable and practicable, open air abrasive blasting and / or spray painting activities must be carried out using temporary shrouding, screens, polythene sheeting or other methods to prevent the release of contaminants that may cause a nuisance at any nuisance sensitive or commercial place. NOTE: Refer to the Department of Employment Training and Industrial Relations - Workplace Health and Safety for any safety requirements that may apply to your specific operations. Definitions
- A29
Words and phrases used throughout this environmental authority are defined in Schedule J - Definitions. Where a definition for a term used in this environmental authority is sought and the term is not defined within this environmental authority, the definitions in the Environmental Protection Act 1994, its Regulations and Environmental Protection Policies must be used. Standards and Guidelines
- A30
Where a condition of this environmental authority requires compliance with a standard, guideline or manual published externally to this environmental authority and the standard, guideline or manual is amended or changed subsequent to the issue of this environmental authority, the holder must: (a) comply with the amended or changed standard, guideline or manual: (i) within twelve (12) months of the amendment or change being made, unless a different period is specified in the amended standard, guideline, manual or relevant legislation; or (ii) a timeframe otherwise agreed between the holder of this environmental authority and the administering authority; (b) until compliance with the amended or changed standard, guideline or manual is achieved, continue to remain in compliance with the standard, guideline or manual that was current immediately prior to the relevant amendment or change. Existing Fuel Storages
- A31
The fuel storages listed in Schedule A - Table 1 (Fuel Storages that do not meet the Australian Standard AS1940) are not required to be upgraded to the Australian Standard AS1940 for the aspects listed in Schedule A - Table 1.
- A32
The fuel storages listed in Schedule A - Table 1 (Fuel Storages that do not meet the Australian Standard AS1940) must be maintained to ensure their performance in accordance the relevant standard listed in Schedule A - Table 1. Permit OFFICIAL Environmental Authority Schedule A - Table 1 (Fuel Storages that do not meet the Australian Standard AS1940) Fuel storage Aspects not in compliance with AS 1940 Relevant standard at time of construction Copper Smelter Insufficient bund capacity, insufficient wall AS-CB5 : 1957 SAA Code for Oil Fuel Tank 1 height, sealing required, not certified. Installations (Built prior to 1960) Copper Smelter Insufficient bund capacity, insufficient wall AS-CB5 : 1957 SAA Code for Oil Fuel Tank 2 height, sealing required, not certified. Installations (Built prior to 1960) Copper Smelter Insufficient bund capacity, insufficient wall AS-CB5 : 1957 SAA Code for Oil Fuel Tank 3 height, sealing required, not certified. Installations (Built prior to 1960)
- A33
Mining activities undertaken on ML2484, ML2485, ML2725, ML2726, ML2727, ML5414, ML5424, ML5432, ML5434 and ML5576 (referred to as Limestone Leases) must be undertaken in accordance with the Eligibility criteria and standard conditions for mining lease activities and Appendix 2.
- A34
Mining activities undertaken on ML2721, ML2722, ML2723 and ML2724 (referred to as Greenwood Mine Leases) must be undertaken in accordance with Conditions A1-A10, A14-19, A26, A29-30 and A35-A47 and Appendix 2.
- A35
The release of noxious or offensive odours or any other airborne contaminants from the mining activities must not cause environmental harm at any sensitive place or commercial place.
- A36
Noise from the mining activities must not cause environmental harm at any sensitive place or commercial place.
- A37
Contaminants that will or may cause environmental harm must not directly or indirectly be released to land except as permitted under this environmental authority.
- A38
Any spillage of wastes, contaminants or other materials must be cleaned up as soon as practicable.
- A39
Land disturbed by mining activities must be rehabilitated in accordance with the administering authority's Guideline - Rehabilitation Requirements for Mining Resource Activities.
- A40
Areas that are available for rehabilitation must be identified in the current Plan of Operations. NOTE: Areas that are available for rehabilitation are those where the limestone seam has been extracted and that are not required for the working face of further limestone extraction.
- A41
Rehabilitation must commence progressively as areas become available for rehabilitation in accordance with the Plan of Operations.
- A42
All explosives, hazardous chemicals, corrosive substances, toxic substances, gases, flammable or combustible liquids and dangerous goods must be stored and handled in accordance with the current, relevant Australian Standard where such is applicable.
- A43
The holder of this environmental authority must not directly or indirectly release waste from the mining area to any waters.
- A44
All waste generated in carrying out the mining activity must be lawfully reused, recycled or removed to a facility that can lawfully accept the waste.
- A45
Regulated waste must only be removed to a place lawfully able to accept it. Permit OFFICIAL Environmental Authority
- A46
The holder of this environmental authority must not directly or indirectly release contaminants to any waters, or the bed or bank of any waters.
- A47
The holder of this environmental authority must develop an Erosion and Sediment Control Plan by 31 December 2016. The Erosion and Sediment Control Plan must be developed by an appropriately qualified person and implemented for all stages of the mining activities on the site to minimise erosion and the release of sediment to receiving waters and contamination of stormwater. END OF CONDITIONS FOR SCHEDULE A Permit OFFICIAL Environmental Authority Schedule B - Air General
- B1
Unless authorised by this environmental authority, the release of noxious or offensive odours or any other airborne contaminants from the mining activities must not cause environmental harm at any sensitive place or commercial place. Point source releases to air
- B2
Subject to condition B19, point source emissions released to the atmosphere must only be released from release point/s specified in Schedule B - Table 1 (Point Source Air Emissions) and identified in Schedule K - Figure 1 (Authorised Point Source Air Emissions) and must be monitored at the frequencies and for the contaminants specified in Schedule B - Table 1.
- B3
The releases from a release point shown in Schedule B - Table 1 (Point Source Air Emissions) must be directed vertically upwards, with no impedance or hindrance. Schedule B - Table 1 (Point Source Air Emissions) Release point Release Coordinates Contaminant Monitoring Height (GDA94 MGA Zone 54) Frequency Sulfur dioxide (m) Easting Northing Total of arsenic, cadmium Continuous1 and lead Isokinetic quarterly Copper Smelter 155 341806 7707100 Particulate matter Isokinetic quarterly Stack Continuous1 Isokinetic quarterly Lead Smelter 270 341975 7707737 Sulfur dioxide Isokinetic quarterly Stack Total of arsenic, cadmium Continuous1 and lead Isokinetic quarterly Isokinetic quarterly Particulate matter Continuous1 Isokinetic quarterly HMA Stack 40 342067 7707382 Sulfur dioxide Isokinetic quarterly 342031 7708817 Total of arsenic, cadmium Lead Zinc Filter 17 and lead Plant Shed Stack Particulate matter Sulfur dioxide Total of arsenic, cadmium and lead Particulate matter 1 Monitoring which provides data equal to at least 75 percent of the total possible data required in any period of: (a) twelve (12) calendar months; and (b) three (3) calendar months; satisfies this requirement.
- B4
Point source emissions released to the atmosphere from the release points specified in Schedule B - Table 1 (Point Source Air Emissions) must be released at a height not less than the corresponding height stated for that release point in Schedule B - Table 1.
- B5
The holder of this environmental authority must conduct and keep records of a monitoring program of the concentrations of contaminants specified in Schedule B - Table 1 (Point Source Air Emissions) released to the atmosphere at the release points and at the frequency specified in Schedule B - Table 1 (Point Source Air Emissions). This program must comply with the following: Permit OFFICIAL Environmental Authority (a) monitoring for the release points specified in Schedule B - Table 1 (Point Source Air Emissions) must comply with the Australian Standard AS 4323.1 - 1995 "Stationary source emissions Method 1: Selection of sampling provisions"; (b) all determinations of contaminant releases to the atmosphere must be made in accordance with methods prescribed in the most recent version of the administering authority's Air Quality Sampling Manual. If monitoring requirements for specific contaminants are not described in the Manual, monitoring protocols must be in accordance with a method as approved by New South Wales DEC/EPA, Victorian EPA or United States EPA and agreed to by the administering authority; (c) the following determinations must also be made for each monitoring event specified in Schedule B - Table 1 (Point Source Air Emissions): (i) gas velocity and volume flow rate; (ii) temperature and pressure; and (iii) water vapour. Ambient Air Quality Monitoring Program
- B6
The holder of this environmental authority must carry out an ambient air quality monitoring program for the air quality indicators at the monitoring locations specified in Schedule B - Table 2 (Ambient Air Quality Monitoring Program) and Schedule K - Figure 2 (Ambient Air Quality Monitoring Program Locations) and Schedule K - Figure 3 (Ambient Air Quality Zones and Locations) using the methodology and at the frequency specified in Schedule B - Table 2a (Ambient Air Quality Monitoring Program). Schedule B - Table 2 (Ambient Air Quality Monitoring Program) Station Monitoring Location Air Quality Indicators Coordinates Number (GDA94 MGA Zone 54) Easting Northing Soldiers' Hill TSP and PM10 via HVAS 342541 7709936 1 Heavy metals via HVAS1 Dust deposition and metals in (Wau St, Soldiers Hill) deposited dust2 Sulfur dioxide 2 Sunset State School Sulfur dioxide 344967 (Able Smith Pde, Sunset) 7709189 Corella Street Sulfur dioxide 344870 7707257 3 (Corella St, Townview) 4 Healy State School Sulfur dioxide 343656 7705584 (Thompson Road, Healy) TSP and PM10 via HVAS PM10 and PM2.5 via BAM4 5 Suter Road Heavy metals via HVAS1 344222 7704865 (Suter Rd, Healy Heights) Dust deposition and metals in deposited dust2 Sulfur dioxide TSP and PM10 via HVAS PM10 and PM2.5 via BAM4 RSL Heavy metals via HVAS1 6 (Carbonate St, Soldiers Hill) Heavy metals via XACT3 342493 7708826 Dust deposition and metals in deposited dust2 Sulfur dioxide 7 Zena Street Sulfur dioxide 343189 7708660 Permit OFFICIAL Environmental Authority
- C1
C1 Sulfur dioxide - Passive sampling 327421 7720556 - annual average
- C15
C15 Sulfur dioxide - Passive sampling 327390 7744811 - annual average
- C23
C23 Sulfur dioxide - Passive sampling 329762 7714051 - annual average
- C20
C20 Sulfur dioxide - Passive sampling 332364 7701462 - annual average
- C36
C36 Sulfur dioxide - Passive sampling 351304 7688022 - annual average
- C37
C37 Sulfur dioxide - Passive sampling 316907 7730485 - annual average 1 Heavy metals via HVAS (High Volume Air Sampler) means the concentration of arsenic measured as the total metal content in PM10, cadmium as the total metal content in PM10 and lead measured as the total metal content in Total Suspended Particulates (TSP). 2 The following metals must be monitored in deposited dust: arsenic, cadmium, copper and lead. 3 The following metals must be monitored via XACT (continuous metals analyser): arsenic, cadmium and lead. 4 BAM means Beta Attenuation Monitor. Permit OFFICIAL Environmental Authority Schedule B - Table 2a (Ambient Air Quality Monitoring Program) Air Quality Indicators1 Monitoring Method6 Monitoring Frequency Once every 6 days2, 5 TSP and PM10 via HVAS High Volume Air Sampler (HVAS) AS/NZS 3580.9.15 Once every 6 days2, 5 Heavy Metals via HVAS High Volume Air Sampler (HVAS) Hourly3 AS/NZS 3580.9.15 Continuous2 Heavy Metals via XACT Continuous Metals Analyser (XACT) Continuous2 Once every calendar month for
- B7
The mining activities must not cause the maximum concentrations specified in Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) to be exceeded when measured at any commercial or sensitive place. Permit OFFICIAL Environmental Authority Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) Air Quality Indicator Averaging Time Maximum Concentration (-g/m3) Total Suspended Particulates Calendar year 90 Particulate matter with an aerodynamic diameter of less 24 hours 50 than 10 microns (PM10)1 24 hours 25 Calendar year 8 Particulate matter with an aerodynamic diameter of less Calendar year 0.0062 than 2.5 microns (PM2.5) Particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5) Arsenic (measured as the total metal content in PM10) Cadmium (measured as the total metal content in PM10) Calendar year 0.005 Lead (measured as the total metal content in total Calendar year 0.5 suspended particulates) 1 The maximum concentration of PM10 is authorised to be exceeded for not more than five (5) days each calendar year. If there are more than five (5) days in a calendar year on which the average PM10 concentration at any commercial or sensitive place exceeds 50-g/m3 (`exceedance days'), the holder of this environmental authority must determine PM10 contributions from Mount Isa Mines for each exceedance day. The maximum PM10 contribution by Mount Isa Mines to the measured 24 hour average PM10 concentration at any commercial or sensitive place must not exceed 25ug/m3 on more than five (5) exceedance days in a calendar year. 2 Subject to condition B26. Ambient Air Quality - Dust Deposition
- B8
The mining activities must not cause an exceedance of the dust deposition maximum limit specified in Schedule B - Table 4 (Ambient Air Quality - Dust Deposition Limits and Trigger Values) at a commercial or sensitive place. Schedule B - Table 4 - (Ambient Air Quality - Dust Deposition Limits and Trigger Values) Contaminant Limit type Value of Deposition Limit/Trigger Arsenic and its compounds as Trigger value 4 -g/m2/day (calculated as an annual average per arsenic2 calendar year) Cadmium and its compounds as Trigger value 2 -g/m2/day (calculated as an annual average per cadmium2 calendar year) Copper and its compounds as Trigger value 330 -g/m2/day (calculated as an annual average per copper2 calendar year) Lead and its compounds as lead2 Trigger value 100 -g/m2/day (calculated as an annual average per calendar year) Dust deposition measured as total Maximum limit 120 mg/m2/day (calculated as an annual average per insoluble matter (insoluble analysis calendar year) and particulate matter deposition rate)1 1 The dust deposition limit is the arithmetic mean of the daily deposition rate values for individual samples expressed to a 30-day month as per AS/NZS 3580.10.1:2016 (or more recent edition) over the calendar year. 2 Metal analysis is to be carried out in accordance with a methodology, sufficient to produce representative results capable of comparison against the respective trigger values.
- B9
In the event of monitoring results showing an exceedance of any of the trigger values specified in Schedule B - Table 4 (Ambient Air Quality - Dust Deposition Limits and Trigger Values) at a commercial or sensitive place, the holder of this environmental authority must: (a) complete an investigation to identify the potential cause of the exceedance; (b) consider all risk assessments and identified controls from conditions C35 and C36; Permit OFFICIAL Environmental Authority (c) if the investigation shows that the exceedance is not attributable to the mining activities then no further action is required and this must be advised to the administering authority; (d) if the investigation shows that the exceedance is attributable to the mining activities, provide a written report to the administering authority within four (4) months of the date of receipt of monitoring results, outlining: (i) details of the investigation carried out; (ii) identification of relevant sources and controls; (iii) an assessment of potential and actual impacts to environmental values; and (iv) actions taken or to be taken to minimise environmental harm. Ambient Air Quality - Sulfur Dioxide
- B10
The mining activities must not cause the maximum concentrations specified in Schedule B - Table 5 (Ambient Air Quality - Maximum Sulfur Dioxide Concentrations) to be exceeded when measured at any commercial or sensitive place. Schedule B - Table 5 (Ambient Air Quality - Maximum Sulfur Dioxide Concentrations) Averaging Time Maximum Sulfur Dioxide Concentration (-g/m3) Annual 57 1 day 2301, 2 1 hour 5701, 2 1. Subject to condition B26. 2. The maximum 1 day and 1 hour concentration of sulfur dioxide is authorised to be exceeded for not more than one (1) day each calendar year.
- B11
The mining activities must not cause the annual concentration specified in Schedule B - Table 6 (Ambient Air Quality - Maximum Sulfur Dioxide Concentrations in each Zone) to be exceeded when measured at a place that is not a commercial or sensitive place outside the boundary of the mining lease and in the relevant zone as specified in Schedule B - Table 6 and Schedule K - Figure 3 (Ambient Air Quality Zones and Locations). Schedule B - Table 6 (Ambient Air Quality - Maximum Sulfur Dioxide Concentrations in each Zone) Zone Maximum Annual Sulfur Dioxide Concentration (-g/m3) Zone 1 - Eastern Zone - outside of town 32 Zone 2 - Western Zone up to 15 kilometres 40* from the mining lease boundary *Interim maximum annual sulfur dioxide concentration. The maximum annual sulfur dioxide concentration for Zone 2 will be notified to the administering authority by 30 June 2023. Zone 3 - Western Zone greater than 15km from 32 the mining lease boundary
- B12
An Environmental Impact Monitoring Program (EIMP) must be implemented and maintained to monitor and record the effects of the release of contaminants to air on the receiving environment, with the aims of identifying and describing the extent of any adverse impacts to local environmental values and monitoring any changes in the receiving environment. Note: For the purposes of the EIMP, the receiving environment is Zone 2 as defined in Schedule B - Table 6 (Ambient Air Quality - Maximum Sulfur Dioxide Concentrations in each Zone) and Schedule K - Figure 3 (Ambient Air Quality Zones and Locations).
- B13
The EIMP must include: (a) monitoring of the potential adverse environmental impacts caused by the release of contaminants to air by the mining activities to flora and fauna communities and soil quality including nutrient loads, acidity, erosion and heavy metals; (b) sufficient spatial and temporal replication (including controls) to enable statistically valid conclusions to be made concerning impacts of the release of contaminants to air on the receiving environment. Permit OFFICIAL Environmental Authority
- B14
A report detailing the findings of the EIMP must be submitted to the administering authority by 30 June 2023, and every four (4) years on 30 June. The report must include a revised EIMP, and the holder of the environmental authority must give due consideration to any comments made on the revised EIMP by the administering authority.
- B15
The maximum annual sulfur dioxide concentration for Zone 2 (as defined in Schedule B - Table 6 (Ambient Air Quality - Maximum Sulfur Dioxide Concentrations in each Zone) and Schedule K - Figure 3 (Ambient Air Quality Zones and Locations) is an interim limit of 40 -g/m3, until such time as a site-specific limit is determined. The holder of this environmental authority will undertake a further study (or studies), which may be a part of the EIMP, to determine a site specific maximum annual sulfur dioxide limit specific to Zone 2 on or before 30 June 2023. Ambient Air Quality Monitoring Program Requirements
- B16
Samples taken for the ambient air quality monitoring program must be collected and analysed in accordance with the requirements of the administering authority's latest edition of the Air Quality Sampling Manual, or more recent editions or supplements to that document as are published by the administering authority, unless otherwise agreed by the administering authority in writing. Air Quality Control System
- B17
The holder of this environmental authority must implement and maintain an Air Quality Control System (AQC System).
- B18
The AQC System must include: (a) development and implementation of enhanced operating protocols, including mandatory requirements for a reduction or cessation of smelting operations if the hourly and daily sulfur dioxide levels specified in this environmental authority are likely to be reached or exceeded. (b) appointed and authorised air quality control personnel (AQC personnel) with responsibility: (i) for all or part of the smelting operations, having regard to the conditions of this environmental authority, to decide whether or not meteorological conditions are suitable; (ii) for other mining activities including blasting, having regard to the conditions of this environmental authority, to advise about meteorological conditions; (c) requirements that smelter operating management act on the advice of the AQC personnel in accordance with the operating protocols, except under conditions of emergency, or when plant and individual safety are of concern; (d) real-time access to and recording of sulfur dioxide concentration data measured at the relevant continuous monitoring locations specified in Schedule B - Table 2 (Ambient Air Quality Monitoring Program); (e) access to relevant meteorological information available from the Bureau of Meteorology or an equivalent provider, including vertical profile of wind speed and direction indicators, air temperature, relative humidity, or related parameter; and (f) a fully operational and calibrated Emissions Forecast and Control System (eFACS), which must: (i) predict sulfur dioxide ground level concentrations ahead of time; (ii) provide an estimated breakdown of the percentage contribution from the main sources when sulfur dioxide is measured at the continuous sulfur dioxide monitoring stations specified in this environmental authority; and (iii) provide improved ability to AQC personnel to direct smelting operations to meet the sulfur dioxide ground level concentrations to the levels stipulated in this environmental authority. Power Generation
- B19
The release of emissions to air from the Xstrata Power Station and Mines Power Station must only occur from those release points identified in Schedule B - Table 7 (Power Station Point Source Air Emissions) and must be directed vertically upwards without any impedance or hindrance. Permit OFFICIAL Environmental Authority
- B20
Emissions must be monitored at a frequency not less than that specified in Schedule B - Table 7 (Power Station Point Source Air Emissions).
- B21
Monitoring of any releases to the air from the Xstrata Power Station and Mines Power Station required by a condition of this environmental authority must be carried out in accordance with the following requirements: (a) monitoring provisions for the release points listed in Schedule B - Table 7 (Power Station Point Source Air Emissions) must comply with the Australian Standard AS4323.1 - 1995 `Stationary source emissions Method 1: Selection of sampling positions' (or more recent editions); (b) the following tests must be performed for the power station release points specified in Schedule B - Table 7 (Power Station Point Source Air Emissions): (i) gas velocity and volume flow rate; (ii) temperature; (iii) water vapour concentration (moisture content); (iv) NOx as NO2; (v) CO; and (vi) TSP for diesel fuelled operations only. (c) where practicable, samples must be taken when emissions are expected to be at maximum rates; (d) during the sampling of the Xstrata Power Station and Mines Power Station release points, the following additional information must be gathered: (i) production rate at the time of sampling; (ii) raw materials used; (iii) number of equipment operating; (iv) operation or mixing temperature; and (v) reference to the actual test methods and accuracy of the methods. Schedule B - Table 7 (Power Station Point Source Air Emissions) Location Source Coordinates Release Points Monitoring Description (GDA94 MGA Zone 54) Frequency Easting Northing 1 Sampling event for Xstrata Natural gas 341786 7705453 XPS1, XPS2, XPS3, XPS4, Power fired XPS5, XPS6, XPS7, XPS8, each release Station reciprocating XPS9, XPS10, XPS11, XPS12, point every engines XPS13, XPS14. four (4) years Mines Power Boilers, 342064 7707230 Boiler stacks Station diesel fired and natural gas fired. Accreditation of monitoring program
- B22
Subject to condition B23, for both ambient air and point source emissions, the monitoring program methods must be accredited by the National Association of Testing Authorities.
- B23
The holder of this environmental authority may apply an equivalent system for ensuring adequate monitoring, quality assurance, auditing, and validation procedures. The holder of this environmental authority must seek approval from the administering authority for the use of an equivalent system. Reporting Requirements
- B24
The holder of this environmental authority must ensure all information recorded in the monitoring programs specified in this Schedule B is reviewed by an appropriately qualified person.
- B25
The holder of this environmental authority must ensure all information recorded in the monitoring programs specified in Schedule B is supplied to the administering authority: Permit OFFICIAL Environmental Authority (a) at the intervals of time specified in Schedule B - Table 8 (Reporting Requirements); (b) in the format specified by the administering authority; and (c) except for information that is required hourly, by the last day of the month following the end of the period to which the information relates. Schedule B - Table 8 (Reporting Requirements) Air Quality Indicator Monitoring Method Reporting Frequency Hourly, Monthly Ambient Continuous Sulfur Sulfur dioxide - continuous Monthly Dioxide (Schedule B - Table 2) Ambient Particles, Metals TSP2, PM10 and Heavy metals - once every (Schedule B - Table 2) 6 days (HVAS) Ambient Particles, Metals Heavy metals - Continuous metals analyser Hourly, Monthly, Quarterly (Schedule B - Table 2) (XACT) Raw data provision to administering authority hourly, with QA/QC data provided monthly and a correlation to HVAS on a quarterly basis. Ambient Particles (Schedule B - PM10 and PM2.5 - continuous BAM3 or Hourly, Monthly Quarterly Table 2) equivalent Monthly Quarterly Dust deposition (Schedule B - Dust deposition - once every calendar month Monthly Table 2) (deposition gauge) Point source air emissions Continuous monitoring of the concentration (Schedule B - Table 1) of sulfur dioxide Point source air emissions Isokinetic quarterly testing for particulate (Schedule B - Table 1) matter and total arsenic, cadmium and lead Meteorology1 Daily wind speed, wind direction temperature, rainfall, humidity, pressure, total solar radiation (TSR) 1. Representative stations as agreed. 2. TSP means Total Suspended Particulates. 3. BAM means Beta Attenuation Monitor. Copper Smelter Extension Project
- B26
Conditions B27 to B39c apply whilst the copper smelter is operational, up to 31 December 2036. If any part of conditions B1 to B25 are inconsistent with conditions B27 to B39c, then conditions B27 to B39c prevail to the extent of the inconsistency. Arsenic
- B27
The mining activities must not cause the maximum concentrations for arsenic specified in Schedule B - Table 9 (Arsenic Ambient Air Quality - Maximum Contaminant Concentrations) to be exceeded for the relevant year specified when measured at any commercial or sensitive place. Permit OFFICIAL Environmental Authority Schedule B - Table 9 (Arsenic Ambient Air Quality Maximum Contaminant Concentrations) Arsenic (measured as the total metal Averaging Maximum Concentration (-g/m3)1 content in PM10) Time 2022 to 2023 0.015 2024 to 2026 Calendar year 0.014 2027 to 2031 0.013 2032 to 2036 0.012 1. Applies to all stations specified in Schedule B - Table 2 (Ambient Air Quality Monitoring Program), excluding May Downs Homestead (May Downs Rd). Sulfur Dioxide
- B28
The mining activities must not cause the maximum concentrations specified in Schedule B - Table 10 (Sulfur Dioxide Concentrations) to be exceeded when measured at each monitoring location specified in Schedule B Table 2 (Ambient Air Quality Monitoring Program) or any commercial or sensitive place. Schedule B - Table 10 (Sulfur Dioxide Concentrations)1,2,3 Period Averaging Percentile1 Sulfur Dioxide (SO2) Time Concentration (g/m3) 2022 1 day 99th percentile (3 days) 230 1 hour 98th percentile (175 hours) 570 99.6th percentile (35 hours) 1,140 2023-2024 1 day 99.45th percentile (2 days) 230 1 hour 98.5th percentile (131 hours) 570 99.7th percentile (26 hours) 1,140 2025 to 2026 1 day 99.45th percentile (2 days) 230 1 hour 98.75th percentile (110 hours) 570 99.75th percentile (22 hours) 1,140 2027 to 2031 1 day 99.45th percentile (2 days) 230 1 hour 99th percentile (88 hours) 570 99.8th percentile (17 hours) 1,140 2032 to 2036 1 day 99.73rd percentile (1 day) 230 1 hour 99.43rd percentile (50 hours) 570 99.86th percentile (12 hours) 1,140 1. Percentile values to be calculated at each monitoring location on a calendar year basis with averaging times based on whole clock hours and calendar days. 2. Monitoring data will be adjusted to 0-C and 1 atmosphere pressure. 3. Applies to all stations specified in Schedule B - Table 2 (Ambient Air Quality Monitoring Program), excluding May Downs Homestead (May Downs Rd).
- B29
An early warning and response system for the May Downs Homestead area must be developed and implemented by the environmental authority holder.
- B30
The mining activities must not cause the maximum concentrations specified in Schedule B - Table 10a (Arsenic Ambient Air Quality Maximum Contaminant Concentrations - May Downs) or Schedule B - Table 10b (Sulfur Dioxide Concentrations - May Downs) to be exceeded when measured at station 12 - May Downs Homestead (May Downs Rd) specified in Schedule B Table 2 (Ambient Air Quality Monitoring Program). Permit OFFICIAL Environmental Authority Schedule B - Table 10a (Arsenic Ambient Air Quality Maximum Contaminant Concentrations - May Downs) Arsenic (measured as the total Averaging Time Maximum Concentration (-g/m3) metal content in PM10) 2022 N/A May Downs is not subject to any air quality limits until 1 January 2023. 2023 to 2024 0.019 2025 to 2026 Calendar year 0.018 2027 to 2031 0.017 2032 to 2036 0.016 Schedule B - Table 10b (Sulfur Dioxide Concentrations - May Downs)1,2 Period Averaging Percentile Sulfur Dioxide (SO2) Time Concentration (g/m3) 2022 N/A May Downs is not subject to any air quality limits until 1 January 2023. 2023-2026 1 hour 98th percentile (175 hours) 570 99.6th percentile (35 hours) 1,140 2027 to 2031 1 hour 98.5th percentile (131 hours) 570 99.65th percentile (31 hours) 1,140 2032 to 2036 1 hour 98.75th percentile (110 hours) 570 99.7th percentile (26 hours) 1,140 1. Percentile values to be calculated at each monitoring location on a calendar year basis with averaging times based on whole clock hours and calendar days. 2. Monitoring data will be adjusted to 0-C and 1 atmosphere pressure.
- B31
The holder of this environmental authority must develop, implement and maintain a community information program which highlights and informs the community of the risk to the at-risk population groups from exposure to sulfur dioxide and other significant contaminants.
- B32
The program required under condition B31 must include but not be limited to: (a) providing a real-time health risk indicator for sulfur dioxide to the Mount Isa community through a smart phone application and the environmental authority holder's website; (b) providing real-time information for arsenic, cadmium and lead via HVAS to the Mount Isa community through the environmental authority holder's website; (c) an alert system as part of the real-time health risk indicator to warn the community when the sulfur dioxide concentration is likely to exceed 500-g/m3 for 15 consecutive minutes; (d) promoting the community feedback hotline for people with questions or concerns relating to potential impacts of sulfur dioxide and other significant contaminants; (e) publication of `air quality in Mount Isa information' using a range of communication platforms and tools to provide the community with information about air quality management by the environmental authority holder; (f) information sessions to community groups including at risk populations, schools and childcare centres on air quality in Mount Isa at least annually; (g) community information sessions in relation to air quality in Mount Isa at least once every six (6) months. These sessions can be a part of the forums specified under condition A20; and (h) consultation with the Queensland Department of Health and primary health care professionals in Mount Isa in relation to management of at-risk population groups. Permit OFFICIAL Environmental Authority Emissions
- B33
An Arsenic Emissions Source Study must be developed by an appropriately qualified person and provided to the administering authority by 30 September 2023. B33a The Arsenic Emissions Source Study in condition B33 must: (a) identify and quantify contributions from individual arsenic emission sources at a resolution sufficient to enable the design of emissions controls or remedies, specifically applicable to the respective sources; (b) derive refined arsenic air dispersion modelling and emission estimates; (c) determine key emission sources by including analysis of all available and relevant air quality monitoring data: (i) at the monitoring locations specified in Schedule B - Table 2 (Ambient Air Quality Monitoring Program); (ii) at the boundary of the mining lease; (d) include a review of feed sources, volumes and compositions and identify any correlation to emissions; and (e) detail any other matters required to understand arsenic emission sources.
- B34
An Air Quality Emissions Management Plan (AQEMP) for sulfur dioxide and arsenic must be developed by an appropriately qualified person and provided to the administering authority by 30 November 2023, and then at regular intervals not exceeding four (4) years. B34a The AQEMP, required under condition B34 must be implemented and include the following, for the relevant four (4) yearly reporting period: (a) consideration of existing information including, but not limited to dispersion modelling studies and air quality monitoring programs; (b) an overview of air quality emission sources; (c) an overview of potential of air quality impacts; (d) describe management strategies to minimise emissions from the identified sources through best practice environmental management; (e) a schedule to incorporate best practice emission mitigation; and (f) an update on the schedule implementation for the preceding 4-year period.
- B35
An Air Quality Performance Review Report for sulfur dioxide and arsenic must be completed by an appropriately qualified person and provided to the administering authority by 1 November 2026, and then at regular intervals not exceeding four (4) years. B35a The Air Quality Performance Review Report required by Condition B35 must include the following: (a) an analysis of air quality data of the previous four (4) calendar years; (b) predicted future air quality for the next five (5) years, based on anticipated future emissions and dispersion modelling; (c) an updated human health risk assessment in accordance with the most recent version of the enHealth Environmental Health Risk Assessment - Guideline for assessing human health risks from environmental hazards, accounting for lifetime exposure risk, based on all available and valid air quality data; (d) consideration of contemporary air quality standards and guidance on health impacts from air pollution; (e) an assessment on the adequacy of current operational controls and a review of best practice emission mitigation; (f) an assessment of the controls identified through any risk assessment completed under conditions C35 and C36; (g) an update on the action implementation for the preceding 4-year period; and (h) provide recommendations for minimising air emissions through best practice emission mitigation. Permit OFFICIAL Environmental Authority Trigger Action Response Plan (TARP)
- B36
The holder of this environmental authority must develop, implement, and maintain a Trigger Action Response Plan (TARP) that ensures compliance with the limits specified in: (a) Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) for cadmium and lead; or (b) Schedule B - Table 9 (Arsenic Ambient Air Quality - Maximum Contaminant Concentrations); or (c) Schedule B - Table 10 (Sulfur Dioxide Concentrations). B36a The TARP required by condition B36 must be reviewed by 31 March annually and as often as necessary to ensure compliance with the limits specified in: (a) Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) for cadmium and lead; or (b) Schedule B - Table 9 (Arsenic Ambient Air Quality - Maximum Contaminant Concentrations); or (c) Schedule B - Table 10 (Sulfur Dioxide Concentrations). B36b Actions taken under or in response to the TARP must be documented in an auditable form. Notification
- B37
After 1 April each year, by the tenth business day of each calendar month, the holder of this environmental authority must notify the administering authority in accordance with condition A16, of any monitoring results in the preceding month which cause the average of the year-to-date concentration of the applicable metal, over the predicted number of sampling events for the corresponding calendar year to exceed the corresponding proportion of the applicable annual limit, as specified in: (a) Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) for cadmium and lead; or (b) Schedule B - Table 9 (Arsenic Ambient Air Quality - Maximum Contaminant Concentrations). NOTE: In the event that MIM have submitted a notification for an exceedance of a trigger level as required under this condition, and the year- to-date concentration remains above the notification level in the following months, an additional notification is not required, however the holder of this Environmental Authority shall provide an update of the actions taken as per condition B37a. B37a The notification required by condition B37 must include advice on actions taken or intended to be taken under the TARP.
- B38
The holder of this environmental authority must initiate and maintain regular engagement that includes briefings on the progress of third-party investigations required under condition B39, with the administering authority and the Queensland Department of Health, immediately upon becoming aware of any exceedance of a limit specified in: (a) Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) for cadmium, and lead; or (b) Schedule B - Table 9 (Arsenic Ambient Air Quality - Maximum Contaminant Concentrations). Investigations
- B39
The holder of this environmental authority must engage a third party that is an appropriately qualified person/s to investigate and report on any exceedance of a limit specified in: (a) Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) for cadmium and lead; or (b) Schedule B - Table 9 (Arsenic Ambient Air Quality - Maximum Contaminant Concentrations). B39a The third-party investigation required by condition B39, must include: (a) a systematic analysis (Root Cause Analysis - RCA) to identify factors that contributed to the accumulation of the relevant contaminant above the maximum contaminant concentrations, carried out: (i) in accordance with International Standard AS/NZ IEC 62740:2016; or (ii) if applicable, and by agreement with the administering authority, using an alternative standard that establishes relevant alternative methodologies; and Permit OFFICIAL Environmental Authority (b) a human health risk assessment to identify potential environmental harm associated with the release of the relevant contaminant above the maximum contaminant concentrations, carried out: (i) in accordance with the most recent version of the enHealth Environmental Health Risk Assessment - Guideline for assessing human health risks from environmental hazards, if applicable; (ii) if applicable, an alternative standard that establishes alternative methodologies, in agreement with the administering authority, in consultation with the Queensland Department of Health; and (c) the human health risk assessment required by condition B39a(b) must include: (i) a review of all available and valid data as required to assess the lifetime exposure risk, including the historic and projected exposure risk over the potential life of the mining activities; and (ii) an assessment of the likely acute and chronic human health impact/s of the exposure. B39b The investigation report required by conditions B39 and B39a, must be provided to the administering authority by 30 June, following the period of the exceedance of a limit specified in Schedule B - Table 3 (Ambient Air Quality - Particulate Matter Maximum Contaminant Concentrations) for cadmium, and lead; or Schedule B - Table 9 (Arsenic Ambient Air Quality - Maximum Contaminant Concentrations), or at a further timeframe as agreed by the administering authority. B39c The investigation report required by condition B39b must include: (a) a documented record of the investigations undertaken, including the methods and analysis and any assumptions or uncertainties; and (b) conclusions relating to the RCA and human health risk assessment; and (c) recommendations for the holder of the environmental authority, including any necessary actions or updates to processes, procedures, or site infrastructure to prevent a reoccurrence of the non- compliance; and (d) a certification of: (i) the independence and accuracy of the third-party report; and (ii) the appropriately qualified person/s professional qualifications, training, skills and experience relevant to the investigation.
- C1
Unless authorised by this environmental authority, contaminants that will or may cause environmental harm must not directly or indirectly be released to land except as permitted under this environmental authority.
- C2
Subject to condition C1, any spillage of wastes, contaminants or other materials must be cleaned up as soon as practicable. Such spillages must be cleaned up using dry methods that minimise the release of wastes, contaminants or materials to any stormwater drainage system, roadside gutter or receiving waters. Land Management Plan
- C3
The holder of this environmental authority must maintain a Land Management Plan to manage fire, weeds and feral animals on site. Rehabilitation Objectives
- C4
Land disturbed by mining activities must be rehabilitated in accordance with Schedule C - Table 1 (Rehabilitation Requirements) and the Rehabilitation Plan required under condition C7.
- C5
Areas that are available for rehabilitation must be identified in the current Plan of Operations.
- C6
Rehabilitation must commence progressively as areas become available in accordance with the Plan of Operations. Schedule C - Table 1 (Rehabilitation Requirements) Mine Domain Mine Feature Rehabilitation Goal Rehabilitation Indicators Completion Name Objectives Criteria Dams All dams which In accordance form part of the with the containment systems Rehabilitation Plan required Waste Rock BSOC waste All land subject to under condition In accordance In accordance rock dump mining activities must with the with the Pits (residual (including be rehabilitated in C7 voids) Mount Isa accordance with the Rehabilitation Rehabilitation Mines Landfill) administering Plan required Plan required authority's Guideline - under condition under condition HHOC waste Rehabilitation rock dump requirements for C7 C7 mining resource BROC waste activities and will be rock dump defined in the Rehabilitation Plan BSOC required under condition C7. HHOC BROC Underground KSOC Exploration must be Mining X41 rehabilitated in Enterprise accordance with George Fisher condition A26. Bulk Products Slag Piles / Materials Processing Materials Permit OFFICIAL Environmental Authority Mine Domain Mine Feature Rehabilitation Goal Rehabilitation Indicators Completion Infrastructure Name Objectives Criteria Residual Voids will Other Isa be safe, stable and Infrastructure non-polluting and will Pits (residual George Fisher / not be required to voids) HHOC sustain a post-mining Infrastructure land use. Pits (exclusion Exploration Exclusion zones will zone) Miscellaneous be non-polluting, BSOC managed in Underground HHOC accordance with best Mining BROC practice standards to (exclusion KSOC minimise risks to zone) people and the
- C7
The holder of this environmental authority must develop and submit to the administering authority a Rehabilitation Plan within three (3) years of commencement of this environmental authority and update on a regular basis not exceeding five (5) years. The Rehabilitation Plan must describe how the rehabilitation objectives will be achieved. The Rehabilitation Plan must include: (a) schematic representation of final landform inclusive of drainage features; (i) slope design; (ii) cover design; (iii) drainage design and features; (iv) erosion controls proposed on reformed land; (b) proposed revegetation criteria; (c) proposed revegetation methods inclusive of plant species selection, re-profiling, respreading soil, soil ameliorants/amendments, surface preparation and method of propagation; (d) rehabilitation objectives, indicators and completion criteria per domain to achieve the rehabilitation goals which must be consistent with the administering authority's Guideline - Rehabilitation requirements for mining resource activities and this EA; (e) measurable completion criteria for each rehabilitation indicator (for each domain) that enables determination of rehabilitation success for each disturbance type or domain; (f) materials balance including available growth medium and low permeability capping material; (g) geotechnical, geochemical and hydrological studies; (h) completion criteria for residual voids; (i) performance criteria for the tailings dam and waste rock dump cover system; (j) decommissioning criteria for regulated dams so that each regulated dam either: (i) becomes a stable landform; or (ii) is approved or authorised under relevant legislation for a beneficial use; or (iii) is a void authorised by the administering authority to remain after decommissioning; and Permit OFFICIAL Environmental Authority (k) decommissioning criteria for infrastructure within underground mining area so that: i. infrastructure is removed or otherwise retained subject to compliance with criteria in condition C13b and authorised by the administering authority; and ii. assessment of final landform being safe, stable and non-polluting by appropriately qualified person/s; (l) a proposed rehabilitation monitoring program prepared by an appropriately qualified person, which must include sufficient spatial and temporal replication to enable scientifically justifiable conclusions, to assess rehabilitation against the measurable completion criteria and must include monitoring for: (i) surface water quality; (ii) groundwater quality;
- C8
The holder of this environmental authority must conduct rehabilitation monitoring in accordance with the rehabilitation monitoring program developed in the Rehabilitation Plan to verify rehabilitation success for each domain. Topsoil
- C9
Topsoil and subsoils must be stripped and stockpiled ahead of mining to a depth determined from soil surveys to ensure that useable soil resources are preserved for rehabilitation.
- C10
Topsoil and subsoil stockpiles must be managed to ensure stability and minimise the release of contaminants.
- C11
The Rehabilitation Plan for the site must be updated at least eighteen (18) months prior to final production on site, and implemented thereafter for a nominal period of: (a) at least thirty (30) years following final production on site; or (b) a shorter period if it is proven that the site has been successfully rehabilitated to the satisfaction of the administering authority.
- C12
The Rehabilitation Plan updated in accordance with condition C11 must include the following elements: (a) operation and maintenance of: (i) wastewater collection and reticulation systems; (ii) wastewater treatment systems; (iii) the groundwater monitoring network; (iv) final cover systems; (v) vegetative cover (if any). (b) monitoring of: (i) surface water quality; (ii) groundwater quality; (iii) seepage rates; (iv) erosion rates; (v) the integrity and effectiveness of final cover systems; (vi) the health and resilience of vegetative cover (if any). Permit OFFICIAL Environmental Authority Infrastructure C13a All buildings, structures, mining equipment and plant erected and/or used for the mining activities must be removed from the site prior to surrender, except as specified under condition C13b, or where agreed in writing by the administering authority, the Minister responsible for the Mineral Resources Act 1989 and the landowner. Note: consideration must be given to other relevant legislation including the Queensland Heritage Act 1992. C13b Subject to condition C13c, infrastructure comprised of inert materials within the X41 and Enterprise underground mines is authorised to be disposed in situ, subject to achieving the following prior to closure of the underground workings: I. decontamination of all infrastructure that is to remain underground, II. removal of used and unused products or by-products including (but not limited to): i. diesel fuel, lubricants, and welding supplies ii. lubricants from motors (e.g. engine, gearbox, compressors, transmissions) iii. products containing lead batteries such as power packs III. minimisation of the amount of light non-aqueous phase liquid (LNAPL) that could be released from retained infrastructure. Any `Used Oil - Hazardous Type' that cannot be removed from retained infrastructure must be summed and not exceed the maximum `Used Oil - Hazardous Type' of 1,000 L. IV. dewatering underground residual dams prior to closure of underground workings, V. an inventory of all infrastructure disposed in situ and a record of its decontamination, VI. assessment of final landform being safe, stable and non-polluting by appropriately qualified person/s, and VII. documentation of residual risk assessment undertaken by appropriately qualified person/s prior to abandonment of underground infrastructure in situ. C13c The corrective actions I to IV set under condition C13b are not required for underground infrastructure that is assessed to have an unacceptable safety risk when gaining access, in accordance with a risk assessment completed by appropriately qualified person/s. Chemicals and Flammable or Combustible Liquids
- C14
All explosives, hazardous chemicals, corrosive substances, toxic substances, gases, flammable or combustible liquids and dangerous goods must be stored and handled in accordance with the current, relevant Australian Standard where such is applicable.
- C15
Notwithstanding the requirements of any Australian Standard, any liquids, being hazardous chemicals, corrosive substances, toxic substances, flammable or combustible liquids or dangerous goods stored on site that have the potential to cause environmental harm must be stored in or serviced by an effective system of containment that is impervious to the materials stored and managed to prevent the release of such liquids to waters or land.
- C16
Where no relevant Australian Standard is available for the storage of liquids, being hazardous chemicals, corrosive substances, toxic substances, flammable or combustible liquids or dangerous goods, the following must be applied: (a) storage tanks must be bunded so that the capacity and construction of the bund is sufficient to contain at least 110% of the volume of a single storage tank or 110% of the volume of the largest storage tank plus 10% of the volume of the second largest storage tank in multiple storage areas; (b) drum storages must be bunded so that the capacity and construction of the bund is sufficient to contain at least 100% of the maximum design storage volume within the bund; or (c) other systems which achieve secondary containment of the substance.
- C17
All systems for the containment of any liquids, being hazardous chemicals, corrosive substances, toxic substances, flammable or combustible liquids or dangerous goods must be designed to minimise rainfall collection within the system. Permit OFFICIAL Environmental Authority
- C18
Subject to condition A31, any systems for the containment of any liquids, being hazardous chemicals, corrosive substances, toxic substances, flammable or combustible liquids or dangerous goods that do not meet the current, relevant Australian Standard at commencement of this environmental authority must meet the current, relevant Australian Standard by 31 March 2015. Contaminated Land
- C19
The holder of this environmental authority must maintain a register of land areas on the mining lease that are potentially contaminated by the mining activities, that includes: (a) maps of potentially contaminated land; (b) details, including reports on the investigation of these areas; (c) details, including reports, on the remediation of these areas; (d) details of any management plans for remediated areas.
- C20
The holder of this environmental authority must include in its current Plan of Operations details of its procedures to assess, investigate and manage any potentially contaminated land that is proposed to be disturbed during the Plan of Operations. Bulk storage and handling of materials
- C21
Bulk storage and handling of materials (including waste) must be carried out in a manner which minimises the release of dust and particulate matter, prevents or minimises the contamination of land and stormwater, meets the requirements of Condition E12 and incorporates the following control measures: (a) for trafficable and plant areas (including haul roads) measures must be installed, operated and maintained, at all times, in a condition that minimises the release of wind-blown or traffic generated dust. Measures may include: (i) sealing of roads; (ii) compaction of trafficable areas; (iii) the use of water trucks or water sprays; (iv) application of sealants (dust suppressants); (v) wheel wash facilities; (vi) the use of ore conveying systems. (b) for bulk material handling and material stockpiles measures must be installed, operated and maintained at all times to minimise the release of dust and particulate matter to the environment. Measures may include: (i) confining material stockpiles to dedicated storage areas; (ii) covering of stockpiles; (iii) implementing erosion and sediment control measures including capturing any contaminated waters with the containment systems for the surface water containment areas shown in Schedule K - Figure 4 (TSF Containment Area), Schedule K - Figure 5 (Mount Isa East Containment Area) and Schedule K - Figure 6 (GFM / HHOC Containment Area); (iv) using water trucks or water sprays; (v) application of sealants; (vi) compaction; (vii) the use of ore conveying systems; (viii) installation of dust trapping devices on equipment. Bulk Mineral Concentrate Management - Zinc Concentrate
- C22
Bulk zinc concentrate storage and handling must be carried out in a manner which minimises the release of dust and particulate matter, minimises the contamination of land and stormwater and incorporates the following control measures: (a) under normal operating conditions, zinc concentrate must be stored and stockpiled in enclosed buildings*; (b) where condition C22(a) does not apply, zinc concentrate is authorised to be stored outside of enclosed buildings* in the designated zinc storage area as specified in Schedule K - Figure 7 (Designated Zinc Storage Area); Permit OFFICIAL Environmental Authority (c) the designated zinc storage area must: (i) be fully fenced (except for access areas) including either a concrete barrier, dust screen or mesh around the perimeter of the area; (ii) include control measures to minimise the release of contaminants such as: - covering of stockpiles (where possible); - implementing erosion and sediment control measures including capturing any contaminated waters with the containment systems for the surface water containment areas shown in Schedule K - Figure 5 (Mount Isa East Containment Area); - using water trucks or water sprays; - application of sealants; - compaction of trafficable areas; - minimising vehicle access and provision of wheel wash facilities; - minimising the footprint of the zinc concentrate stored in the designated zinc storage area; (d) zinc concentrate stored outside the buildings may be loaded outside only when wind is blowing from the easterly direction (0 -180 degrees). *Note for existing buildings, enclosed buildings means enclosed apart from the access points to the building. Bulk Mineral Concentrate Management - Copper Concentrate
- C23
Bulk copper concentrate storage and handling must be carried out in a manner which minimises the release of dust and particulate matter and minimises the contamination of land and stormwater. Bulk copper concentrate is authorised to be stored only in the copper concentrate storage areas as specified in Schedule K - Figure 8 (Designated Copper Storage Areas) and must include control measures to minimise the release of contaminants. Bulk Mineral Concentrate Management - Lead Concentrate
- C24
Bulk lead concentrate is authorised to be stored on the mining lease only for the purposes of smelter feed, and for loading onto rail and/or road transport.
- C25
Bulk lead concentrate must only be stored, handled and loaded: (a) within the designated enclosed concentrate storage facility identified in Schedule K - Figure 26; or (b) within holding tanks for the purposes of smelter feed.
- C26
Lead concentrate storage, handling and loading within the designated enclosed concentrate storage facility must only occur when the following control measures are in place: (a) the storage facility is under negative air pressure and has a fully operational dust filtration system; (b) all conveyors used to transport lead concentrate are fully enclosed; and (c) all emissions from the conveyors and storage facility are vented through a negative pressure filtration system and monitored as per Schedule B - Table 1 (Point Source Air Emissions).
- C27
All vehicles carrying lead concentrate (including trains) must be washed in a designated wash bay prior to leaving the mining lease.
- C28
The storage, handling or loading of lead concentrate must not cause a net increase in any of the air quality indicators specified in Schedule C - Table 2 (Air Quality Indicators) at any sensitive or commercial place. Permit OFFICIAL Environmental Authority Schedule C - Table 2 (Air Quality Indicators) Averaging Time Air Quality Indicator Calendar year 24 hours Total Suspended Particulates 24 hours Calendar year Particulate matter with an aerodynamic diameter of less than 10 Calendar year microns (PM10) Calendar year Particulate matter with an aerodynamic diameter of less than 2.5 Calendar year microns (PM2.5) Particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5) Arsenic (measured as the total metal content in PM10) Cadmium (measured as the total metal content in PM10) Lead (measured as the total metal content in total suspended particulates)
- C29
The holder of this environmental authority must develop and implement a monitoring program to determine compliance with condition C28. A report detailing the results of the monitoring program must be provided to the administering authority by 1 March every two years from 1 March 2018. Bulk Mineral Concentrate, Packaged Mineral Concentrate and Bulk Material Handling Management - General
- C30
The holder of the environmental authority must develop and implement an operating procedure, which must include, but not be limited to: (a) the wash down of lead concentrate packages prior to storage onsite; (b) the completion of periodic inspections of the mining lease where mining activities are carried out including all structures, plant, equipment and trafficked surfaces to identify and remove or stabilise exposed bulk materials or mineral concentrate that may be mobilised by wind, water or equipment movement; (c) an ongoing cleaning and maintenance schedule to minimise any potential release of bulk materials or mineral concentrate and to ensure there is no build up of bulk materials or mineral concentrate over time in areas where it may be mobilised; (d) placement of any removed materials or concentrates in a designated storage area; (e) periodic review of the management and operation of bulk materials and bulk mineral concentrate storage, packaged mineral concentrate and handling activities, including identification of options for continuous improvement. Transport of Bulk Mineral Concentrate, Packaged Mineral Concentrate and Bulk Materials
- C31
The holder of this environmental authority must ensure that vehicles used for transporting bulk mineral concentrate, packaged mineral concentrate and bulk materials (including waste) have appropriate load preparation to minimise the spillage and / or loss of particulate matter and / or windblown dust during transport.
- C32
The holder of this environmental authority must ensure that any trains or vehicles carrying bulk material or mineral concentrate from site are covered. Bio-Remediation Pads
- C33
Soil and absorbent materials potentially contaminated with hydrocarbons may be treated on site in situ or in a designated bioremediation area. Treated material will not be used for any purpose unless contamination thresholds defined in Schedule C - Table 2 (TPH Thresholds in Treated Soils) are achieved. Permit OFFICIAL Environmental Authority Schedule C - Table 2 (TPH Thresholds in Treated Soils) Recoverable Hydrocarbon Fraction Maximum1 C6-C10 217 mg/kg >C10-16 172 mg/kg >C16-C34 1700 mg/kg >C34 3300 mg/kg Benzene 75 mg/kg Ethylbenzene 165 mg/kg Toluene 135 mg/kg Xylenes 180 mg/kg Benzo(a)pyrene 0.7 mg/kg 1 Guidelines currently under review for inclusion in new Assessment of Site Contamination National Environment Protection Measure (NEPM).
- C34
If the environmental authority holder or an authorised person observes a visible release of dust emissions caused by activities within the copper concentrate storage areas as specified in Schedule K - Figure 8 (Designated Copper Storage Areas) to the atmosphere beyond the boundary of those areas, the environmental authority holder must: (a) Immediately review and, where necessary, adjust control measures. (b) If visible releases of dust emissions continue or are repetitive then: i. cease all relevant activities; and ii. review applicable control measures to minimise the release of contaminants; and iii. prior to recommencing activities, implement any reasonable identified improvements to the control measures to minimise the release of contaminants. Third Party Ore
- C35
The environmental authority holder is authorised to receive, stockpile and process material from third party mining operations, provided: 1. such activities comply with the requirements set out in this environmental authority; and 2. a risk assessment must be undertaken prior to processing, if the characteristics of the third-party material are substantially different to the characteristics of material authorised for processing under this environmental authority.
- C36
Any risk assessment undertaken under Condition C35, must (a) detail controls identified to manage any risks; (b) be implemented to manage risk; and (c) be documented and made available to the administering authority upon request. Packaged Mineral Concentrate Management
- C37
Mineral concentrates handled and stored in a packaged manner must be: (a) handled and stored in a manner that prevents releases to the environment; (b) stored only in the areas specified in Schedule K - Figure 27 (Designated Packaged Mineral Concentrate Areas); and (c) clearly labelled to allow for content identification. END OF CONDITIONS FOR SCHEDULE C Permit OFFICIAL Environmental Authority Schedule D - Regulated Dams General
- D1
Condition removed on 1 February 2017 and no longer applies. System Design Storage Allowance
- D2
Condition removed on 1 February 2017 and no longer applies.
- D3
Condition removed on 1 February 2017 and no longer applies.
- D4
Condition removed on 1 February 2017 and no longer applies.
- D5
Condition removed on 1 February 2017 and no longer applies.
- D6
Condition removed on 1 February 2017 and no longer applies. Containment Performance
- D7
The holder of this environmental authority must develop, implement and maintain an operational simulation water balance model representing system behaviour in response to seasonal and decadal climatic variations, which meets the minimum capabilities defined in this Schedule D.
- D8
On 1 November of each year, the containment system for a surface water containment area must achieve the containment performance specified in Schedule D - Table 1 (Containment Performance) as determined by the operational simulation water balance model.
- D9
If at any other time when the operational simulation water balance model is run, the results indicate that the containment performance specified in Schedule D - Table 1 (Containment Performance) is not met, the holder of this environmental authority must notify the administering authority within forty-eight (48) hours. Schedule D - Table 1 (Containment Performance) Name of surface water Surface Water Containment Performance containment area Containment Area (km2) TSF Containment Area 28.2 Less than or equal to 1% AEP of overflow Mount Isa East Containment Area (Schedule K - Figure 4) Less than or equal to 1% AEP of overflow GFM / HHOC Containment Area Less than or equal to 1% AEP of overflow 12.9 (Schedule K - Figure 5) 8.9 (Schedule K - Figure 6) Operational Simulation Water Balance Model
- D10
The operational simulation water balance model must be run for a simulation period of nine (9) months (forward looking from the day it is run): (a) monthly during the period November to April; (b) every two months during other periods; (c) promptly after each rainfall event greater than fifty (50) millimetres within a twenty four (24) hour period within the relevant surface water containment area, with documentation of inputs and outputs from each run being stored and retrievable for a minimum period of one (1) year. Permit OFFICIAL Environmental Authority
- D11
The operational simulation water balance model must incorporate provisions for: (a) simulation of observed containment system water volumes; (b) reporting on the simulated water volumes and discharges; (c) determining and describing the probability of discharges overflowing from the containment system by ranking model results; (d) starting a simulation of a containment system from any day of a year using the configuration of the components within the system on that day; (e) running the simulation using: (i) all relevant available historical daily rainfall data; (ii) operating rules for transfer within and between containment systems; (iii) expected water inputs and outputs and solid inputs that affect storage capacity; (f) recording and substantiation of model inputs, assumptions, methods and schematic diagrams, to enable independent replication by an appropriately qualified person; (g) representation of differences in hydrological characteristics of modified catchment surfaces and conditions that occur in the surface water containment areas with reasoned and conservative assumptions; (h) representation of operation of the surface water containment systems, including limitations to the operability of active transfer systems in extreme rainfall events and other relevant hazard scenarios; (i) representation of failure scenarios (such as failure of a pump, storage, or blockage of sub-surface drainage or transfer systems); (j) production of graphical outputs that can be reasonably interpreted; and (k) validation with available monitoring data.
- D12
Monitoring to operate and validate the operational simulation water balance model must include: (a) monitoring data from on-site weather stations; (b) surface water volumes and water quality in storages within the containment system; (c) changes in the storage elevation relationship; (d) water volumes actively transferred through the containment system; (e) additional sources of water (other than rainfall runoff) into the containment system; (f) extractions of water from the containment system; (g) mapping of landforms, topography, drainage routes, and catchment conditions, as relevant to their influence on hydrology of the catchments within the surface water containment areas.
- D13
The extent, scope, and detail of the monitoring in condition D12 shall be sufficient to demonstrate actual system performance and operational simulation water balance model validation.
- D14
Containment systems must be designed, assessed and documented as whole systems that include all relevant catchments, infrastructure and operations that have potential to influence the probability of overflow discharges at the authorised release points specified in Schedule H - Table 1 (Contaminant Release Points).
- D15
Assessments utilising the operational simulation water balance model to evaluate containment performance in response to rainfall must be undertaken by an appropriately qualified person.
- D16
Assessments using the operational simulation water balance model must use a minimum of 100 years of historical rainfall data. Transitional Environmental Program - Dams and Water
- D17
Condition removed on 9 April 2015 and no longer applies.
- D18
Condition removed on 9 April 2015 and no longer applies. Permit OFFICIAL Environmental Authority
- D19
Condition removed on 9 April 2015 and no longer applies.
- D20
Condition removed on 9 April 2015 and no longer applies.
- D21
Condition removed on 9 April 2015 and no longer applies. Dams and consequence category assessments
- D22
The consequence category of any dam must be assessed and certified by a suitably qualified and experienced person: (a) in accordance with the most recent edition of the administering authority's guideline Manual for (b) in any of the following situations: (i) prior to the design and construction of any new dams or augmentations to existing dams; or (ii) prior to any change in its purpose or its stored contents.
- D23
A consequence category assessment report and certification must be prepared for any dam assessed and the report may include a consequence category assessment for more than one dam.
- D24
The environmental authority holder must, on receipt of a consequence category assessment report and certification, provide to the administering authority an electronic copy of the hazard assessment report and certification. Regulated Dams
- D25
Subject to Condition D38, all regulated dams must be listed in Appendix 1.
- D26
Subject to Condition D38, the holder of the environmental authority must comply with Appendix 1 (List of Authorised Dams)
- D27
Condition removed on 1 February 2017 and no longer applies.
- D28
Condition removed on 1 February 2017 and no longer applies.
- D29
Condition removed on 1 February 2017 and no longer applies. Design and Construction
- D30
All new regulated dams or augmentations to existing regulated dams must: (a) be designed by, and constructed under the supervision of, a suitably qualified and experienced person; and (b) be designed and constructed in accordance with the most recent edition of the administering authority's guideline Manual for assessing consequence categories and hydraulic performance of
- D31
The construction of all new regulated dams or augmentations to existing regulated dams is prohibited unless the holder of this environmental authority has submitted a design plan to the administering authority twenty (20) business days prior to construction, or a shorter period as agreed to by the administering authority.
- D32
The design plan for a regulated dam must include, but is not limited to: (a) a design report which provides: (i) certification of the design plan; (ii) a description of all the documents which constitute the design plan; (iii) a statement of: Permit OFFICIAL Environmental Authority - the applicable standards including engineering criteria, industry guidelines, relevant legislation and regulatory documents, relied upon in preparing the design plan; and - all relevant facts and data used in preparing the design plan, including any efforts made to obtain necessary facts and data, and any limitations or assumptions to facts and data used in preparing the design plan; - the consequence category of the dam; and (iv) documentation of hydrological analyses and estimates required to determine all elements of the design including volumes and flow capacities; (v) documentation of geotechnical analysis and stability; (vi) detailed criteria for the design, operation, maintenance and concepts and objectives for decommissioning of the dam, including any assumptions; (vii) design, specification and operational rules for any related structures and systems used to prevent failure scenarios; (viii) reasoning how the design plan is capable of providing the required performance; (ix) details of any other matter which may substantially affect, or is critical to, the design plan; (x) evidence that the certifier is a suitably qualified and experienced person; (b) drawings showing the lines and dimensions of built structures and land forms associated with the dam; (c) an operational plan that includes: (i) normal operating procedures and rules; (ii) contingency and emergency action plans including operating procedures designed to avoid and/or minimise environmental impacts including threats to human life resulting from any overtopping or loss of structural integrity of the dam; (d) details of reports on investigations and studies done in support of the design plan; (e) any other matter required by the suitably qualified and experienced person; (f) sufficient documentation so that a suitably qualified and experienced person could reasonably conduct an independent review without seeking further information. Operation of Regulated Dams
- D33
When construction of all new regulated dams or augmentations to existing regulated dams is complete and prior to commencing operation of that construction, the holder of this environmental authority must submit to the administering authority an electronic copy of `as constructed' drawings, together with the certification by the suitably qualified and experienced person who supervises the construction which states: (a) that the `as constructed' drawings and specifications meet the original intent of the design plan for that regulated dam; (b) the relevant data and facts on which the certification has been based, the source of that material, and the efforts made to obtain all relevant data and facts; and (c) the regulated dam has the capability of delivering the performance stated in the design plan.
- D34
In case of all new high consequence category dams or augmentations to existing high consequence category dams, the certification required under D33(a) must be provided by the designer or a similarly suitably qualified and experienced person.
- D35
Each regulated dam must be maintained and operated in a manner that is consistent with the current design plan and the associated certified `as constructed' drawings for the duration of its operational life until decommissioned and rehabilitated.
- D36
For those regulated dams constructed prior to commencement of this environmental authority, in the absence of a design plan, the dam safety review, after submission and acceptance by the administering authority, is taken to be the accepted design plan and the associated certified `as constructed' drawings for the regulated dam. Permit OFFICIAL Environmental Authority
- D37
Where designs have previously been submitted to the administering authority and accepted, the documentation in support of the design is taken to be the accepted design plan and the associated certified `as constructed' drawings.
- D38
Where not already listed as a regulated dam in Appendix 1, or where a change to details included in Appendix 1 is required, an application to amend this environmental authority must be approved by the administering authority prior to commencement of construction of a new regulated dam or augmentation to existing regulated dams, or where a change to the information contained in Appendix 1 is otherwise identified.
- D39
The Mandatory Reporting Level (MRL), as determined by the MRL (physical marker) capacity information specified in Appendix 1, must be marked on a regulated dam by 30 June 2017.
- D40
Where a change to the MRL (physical marker) in Appendix 1 is approved, the holder of this environmental authority must mark the MRL (physical marker) on the relevant regulated dam within 30 days of the change being made to Appendix 1, or an alternative period agreed to in writing by the administering authority.
- D41
The holder of this environmental authority must notify the administering authority as soon as practical and within forty-eight (48) hours of becoming aware when the MRL of the relevant regulated dam as specified in Appendix 1, is reached.
- D42
The holder of this environmental authority must, immediately on becoming aware that any MRL has been reached, act to prevent the occurrence of any unauthorised discharge from the regulated dam. Annual Inspection of Regulated Dams
- D43
Each regulated dam must be inspected each calendar year by a suitably qualified and experienced person.
- D44
At each annual inspection, the condition and adequacy of all components of the regulated dam must be assessed: (a) against the most recent consequence category assessment report and design plan; (b) against recommendations contained in previous annual inspections reports; (c) against relevant dam safety deficiency indicators recommended in guidelines published by recognised professional dam engineering organisations (e.g. ANCOLD, ICOLD, NSW Dam Safety Committee, USBR, USACE); (d) for changes in circumstances potentially leading to a change in consequence category; (e) for conformance with the relevant conditions of this environmental authority; (f) for conformance with the design plan and `as constructed' drawings.
- D45
A suitably qualified and experienced person must: (a) prepare an annual inspection report containing details of the assessment under condition D44, including recommended actions to ensure the integrity of the dam; and (b) provide certification of the inspection report.
- D46
The holder of this environmental authority must: (a) upon receipt of the final annual inspection report, consider the report and its recommendations and take action in response to the recommendations; and (b) within twenty (20) business days of receipt of the final annual inspection report, notify the administering authority in writing of the recommendations of the final inspection report and the actions being taken or to be taken in response to the recommendations. END OF CONDITIONS FOR SCHEDULE D Permit OFFICIAL Environmental Authority Schedule E - Mining, Mineral Processing and Smelting Waste General
- E1
The only mining, mineral processing and smelting waste (excluding waste water and process water) authorised to be generated on site are those detailed Schedule E - Table 1 (Mining, Mineral Processing and Smelting Waste). Note: Waste water and process water are addressed in Schedules D and H.
- E2
Mining, mineral processing and smelting waste must only be disposed of in accordance with Schedule E - Table 1 (Mining, Mineral Processing and Smelting Waste). Schedule E - Table 1 (Mining, Mineral Processing and Smelting Waste) Waste Type Source of Waste Authorised Disposal Black Star Waste Rock Mining Waste Black Star Waste Rock Dump, Black Star Open Cut Pit underground disposal or in accordance Black Rock Waste Rock Black Rock Open Cut Pit with Condition E13. Handlebar Hill Open Cut Pit Handlebar Hill Waste Rock George Fisher Mine Black Rock Waste Rock Dump or George Fisher Waste Rock George Fisher Mine underground disposal or in accordance Other mining waste that does with Condition E13. not require special treatment Handlebar Hill Waste Rock Dump, Copper Tailings underground disposal or in accordance Lead / Zinc Tailings with Condition E14. Heavy Media Reject Underground disposal or in accordance with Condition E14. Underground disposal or in accordance with Condition E14. Mineral Processing Waste (Tailings) Copper Concentrator Tailings Storage Facility or Copperbalt Plant or underground disposal Lead / Zinc Concentrator Tailings Storage Facility or underground disposal Heavy Medium Plant Underground disposal or in waste rock dumps Other mineral processing Miscellaneous Tailings Storage Facility or underground waste that does not require disposal special treatment Miscellaneous (Smelting Wastes, Other) Slag Smelters Underground disposal or in waste rock Cadmium ex-slimes filtrate dumps Thallium ex-slimes filtrate Other smelting waste that Baghouse Pulping Tanks Tailings Storage Facility does not require special treatment Baghouse Pulping Tanks Tailings Storage Facility Other Liquid waste (excluding sewage) Miscellaneous Tailings Storage Facility Miscellaneous Tailings Storage Facility Tailings
- E3
By 31 December 2012, the holder of this environmental authority must develop and implement a Tailings Management Plan that includes provisions for: (a) containment of tailings in accordance with the most recent version of the accepted design plan; Permit OFFICIAL Environmental Authority (b) the management and monitoring of seepage and leachates; (c) the control of fugitive emissions to air; (d) a program of progressive sampling and characterisation to identify acid producing potential and metal concentrations of tailings: (i) all tailings material must be progressively characterised during disposal for net acid producing potential, Net Acid Generation and the following contaminants: Ag, As, Bi, Cd, Cu, Hg, Mo, Pb, Se, Sb, Tl, and Zn; (ii) tailings characterisation must be undertaken quarterly; (iii) where the acid producing potential of tailings material has not been conclusively determined, geochemical kinetic testing or another suitable recognised method must be conducted to indicate oxidation rates, potential reaction products and effectiveness of control strategies, or the tailings material must be classified and treated as potentially acid forming tailings.
- E4
Any surface seepage or runoff from any tailings dam must be captured with the containment systems for the surface water containment areas shown in Schedule K - Figure 4 (TSF Containment Area), Schedule K - Figure 5 (Mount Isa East Containment Area) and Schedule K - Figure 6 (GFM / HHOC Containment Area). Waste Rock Disposal
- E5
The holder of this environmental authority must implement and maintain a Waste Rock Management Plan certified by an appropriately qualified person and update the plan on a regular basis not exceeding five (5) years.
- E6
The Waste Rock Management Plan must include provisions for: (a) characterisation of the waste rock to predict the quality of runoff and seepage generated, including salinity, acidity, alkalinity, dissolved metals, metalloids and non-metallic inorganic substances; (b) the management and monitoring of seepage and leachates; (c) a progressive sampling program to validate pre-mine waste rock characterisation. The waste rock sampling program must include validation of salinity, acid and alkali producing potential and metal concentrations including Ag, As Bi, Cd, Cu, Hg, Mo, Pb, Se, Sb, Tl, and Zn; (d) where the acid rock drainage potential / neutral mine drainage potential of waste rock material has not been conclusively determined, geochemical kinetic testing or another suitable recognised method to indicate oxidation rates, potential reaction products and effectiveness of control strategies, or the waste rock must be classified and treated as potentially acid forming waste rock; (e) records to be maintained of all waste rock characterisation and disposal; (f) a materials balance and disposal strategy demonstrating how potentially acid forming, acid forming, neutral and/or saline mine drainage waste rock will be selectively placed and/or encapsulated to minimise the generation of acid, neutral and/or saline mine drainage; (g) management of any interim cover to minimise infiltration and leachate generation; (h) how often the performance of the plan will be assessed.
- E7
The waste rock dumps must be constructed to prevent any water, other than rainfall, from entering the waste rock dumps.
- E8
Any surface seepage from any waste rock dump must be captured with the containment systems for the surface water containment areas shown in Schedule K - Figure 4 (TSF Containment Area), Schedule K - Figure 5 (Mount Isa East Containment Area) and Schedule K - Figure 6 (GFM / HHOC Containment Area). Mineral Processing and Smelting Waste
- E9
The holder of this environmental authority must develop and implement a Mineral Processing and Smelting Waste Management Plan certified by an appropriately qualified person by 31 December 2012 and update the plan on a regular basis not exceeding five (5) years. Permit OFFICIAL Environmental Authority
- E10
The Mineral Processing and Smelting Waste Management Plan must include: (a) details of the volume of waste that is generated through the mineral processing and / or smelting operations carried out on site; (b) characterisation of the waste including the physical and chemical nature of the waste, and the predicted quality of runoff and/or seepage that could be generated from the waste; (c) details on how the waste is handled, stored and disposed of on site, and the environmental control measures in place to minimise the release of contaminants to air, land or waters.
- E11
Any surface seepage or runoff from mineral processing and/or smelting waste stockpiles must be captured with the containment systems for the surface water containment areas shown in Schedule K - Figure 4 (TSF Containment Area), Schedule K - Figure 5 (Mount Isa East Containment Area) and Schedule K - Figure 6 (GFM / HHOC Containment Area). Saline, acid and metalliferous drainage
- E12
The holder of this environmental authority must ensure measures are taken to avoid or otherwise minimise the generation of saline, acid and/or metalliferous mine drainage. Waste Rock, Construction and Demolition Waste Disposal in the Open Cut Pits
- E13
Waste rock and construction and demolition waste may be disposed in the Black Star Open Cut Pit provided it meets the requirements of Schedule E - Table 2 (Requirements for disposal of waste in the Black Star Open Cut Pit). Schedule E - Table 2 (Requirements for disposal of waste in the Black Star Open Cut Pit) Criteria Description Location Within the Black Star Open Cut Pit, below 240m AHD Quantity Waste rock to a maximum volume of 500,000m3. Construction and demolition waste to a maximum volume of 2,200,000m3.
- E14
Waste rock and other mining waste that does not require special treatment may be disposed in the Handlebar Hill Open Cut Pit provided it meets the requirements of Schedule E - Table 3 (Requirements for waste disposal in the Handlebar Hill Open Cut Pit). Schedule E - Table 3 (Requirements for waste disposal in the Handlebar Hill Open Cut Pit) Criteria Description Location Within the Handlebar Hill Open Cut Pit, below 285m AHD Maximum Quantity Waste rock to a maximum volume of 4,116,000m3. Construction and demolition waste to a maximum volume of 690,000m3.
- E15
In addition to the requirements of Condition E5 and E6, for any waste disposed of in accordance with E13 and E14, the holder of this environmental authority must maintain records of the quantity, location and waste type disposed of in-pit.
- E16
The environmental authority holder must prevent the water level in the Handlebar Hill Open Cut pit reaching a level higher than 314m AHD.
- E17
Potentially buoyant construction and demolition waste disposed of in Black Star Open Cut Pit or in Handlebar Hill Open Cut Pit must be selectively placed and buried. Permit OFFICIAL Environmental Authority
- E18
A pit lake water balance assessment for the Black Star Open Cut Pit and Handlebar Hill Open Cut Pit must: (a) be reviewed at a frequency that does not exceed five (5) years; (b) be prepared by an appropriately qualified person; and (c) take into consideration the site's water management arrangement and waste disposed of to date. END OF CONDITIONS FOR SCHEDULE E Permit OFFICIAL Environmental Authority Schedule F - General and Regulated Waste other than Mining, Mineral Processing and Smelting Waste General
- F1
Unless otherwise authorised by this environmental authority, all general and regulated waste must: (a) be stored and disposed of at the Mount Isa Mines Landfill located within the mining lease and identified in Schedule K - Figure 11a (Mount Isa Mines Landfill); (b) incinerated or disposed of in accordance with Schedule F; or (c) be removed to an alternative facility that can lawfully accept these wastes under the Environmental Protection Act 1994.
- F2
General and regulated waste generated by the mining activities can be temporarily stored on site, awaiting removal off-site or disposal in accordance with this Schedule F, provided it is stored to ensure it does not cause fire or contamination.
- F3
Each container of regulated waste must be clearly marked to identify the contents.
- F4
The conditions in this Schedule F only relate to general and regulated wastes which are not otherwise dealt with in Schedule E (Mining, Mineral Processing and Smelting Waste).
- F5
Subject to conditions F1 and F2, the holder of this environmental authority must ensure that waste disposal does not extend beyond the boundary of the Mount Isa Mines Landfill.
- F6
The following wastes may be disposed of at the Mount Isa Mines Landfill: (a) domestic waste; (b) commercial waste; (c) industrial waste; (d) regulated waste, subject to condition F9; (e) construction and demolition waste; and (f) Until 1 May 2021, liquid waste and wastes yielding free liquid must only be disposed of in a dedicated cell (sludge pit); and (g) Post 1 May 2021, liquid waste is not authorised for disposal in the Mount Isa Landfill
- F7
Scrap steel, aluminium, lead acid batteries and waste oil that has been segregated for recycling must not be disposed of in the Mount Isa Mines Landfill, but must be dealt with in accordance with the following hierarchy with the preference reducing down the list: (a) reuse; (b) recycling; or (c) energy recovery.
- F8
Notwithstanding any other condition of this environmental authority, the following waste materials are not permitted to be disposed of in the Mount Isa Mines Landfill: (a) hot ash; (b) material that is smoldering or aflame; (c) radioactive wastes; (d) explosives; (e) ammunition, other than ammunition that no longer contains explosives, pyrotechnics or propellants apart from trace residues that are no longer capable of supporting combustion or an explosive reaction; (f) clinical waste; (g) filled or partly filled containers containing liquid wastes; (h) filled or partly filled containers containing pesticides, herbicides, fungicides; Permit OFFICIAL Environmental Authority (i) wet cell, nickel metal hydride or nickel cadmium batteries; (j) gas bottles unless decommissioned.
- F9
Regulated wastes which exhibit the hazard characteristics specified in Schedule F - Table 1 (Hazard Characteristics) can only be disposed of in the sludge pit or contaminated cells at the Mount Isa Mines Landfill. Schedule F - Table 1 (Hazard Characteristics) Hazard Characteristic Description of the Hazard Characteristic Ignitability Regulated wastes that are capable of causing a fire when ignited through friction, absorption of moisture, or spontaneous chemical changes under standard temperature and pressure. Corrosivity Regulated wastes which on dissolution exhibit a pH of 2 or less or 12.5 or greater. Reactivity Regulated wastes that have any of the following properties: - react violently with water; and/or, - form potentially explosive mixtures with water and other substances likely to be disposed of in the landfill facility; and/or, - generate toxic gases, vapours, or fumes dangerous to human health or the environment when mixed with water and other substances likely to be disposed of in the landfill facility; and/or, - contain substances which generate toxic gases, vapours or fumes when exposed to pH conditions between 2 and 12.5; and/or, - are capable of detonation or explosive reaction when subjected to a strong initiating source or if heated under confinement; and/or, - are readily capable of detonation or explosive decomposition or reaction at standard temperature and pressure.
- F10
Records of the volume of waste disposed of at each cell at the Mount Isa Mines Landfill must be kept and maintained.
- F11
The holder of this environmental authority must not burn waste except for incineration of the following wastes in the lead smelter blast furnace and the copper smelter: (a) clinical waste other than: (i) cytotoxic; (ii) human body parts; (iii) pharmaceutical; (iv) radioactive; (v) chemical waste; (b) lead products including batteries; (c) wooden products; (d) paper and cardboard; (e) copper products.
- F12
The holder of this environmental authority must implement and maintain a Waste Management Program for general and regulated waste for the site. The Waste Management Program must include: (a) a description of the mining activities that may generate waste; (b) waste management control strategies including: (i) the types and amounts of wastes generated by the mining activities; (ii) segregation of the wastes; (iii) storage of the wastes; Permit OFFICIAL Environmental Authority (iv) transport of the wastes; (v) monitoring and reporting matters concerning the waste. (c) the hazardous characteristics of the wastes generated including disposal procedures for hazardous wastes; (d) a program for reusing, recycling or disposing of all wastes; (e) how the waste will be dealt with in accordance with the waste management hierarchy; (f) procedures for identifying and implementing opportunities to minimise the amount of waste generated, promote efficiency in the use of resources and improve the waste management practices employed; (g) procedures for dealing with accidents, spills and other incidents; (h) how often the performance of the waste management program will be assessed; (i) staff training and induction to the waste management program; (j) a Landfill Development Plan identifying all activities to be carried out on the Mount Isa Mines Landfill and must include details of at least the following: (i) dimensions of cells used for waste disposal or storage; (ii) an accurate level survey of any area utilised for the disposal or storage of wastes. The levels must be reduced to a common datum and related to contour plans; (iii) the dimensions of the active waste disposal cell; (iv) location of any new landfill infrastructure or extensions such as new leachate tanks, or pump well or other plant and equipment required for the leachate collection, storage and recirculation infrastructure installed to serve the new cell; (v) location of any new stormwater drains, diversion embankments or settling ponds required to serve the new cell; and (vi) location of any areas requiring a low permeability cover, and the proposed surface levels and contours of those areas; (vii) specifications on low permeability material to be used in closure of the Mount Isa Mines Landfill; (k) if waste tyres are disposed of in the waste rock dumps, a record of the disposal location of waste tyres in the waste rock dumps.
- F13
The holder of this environmental authority must ensure that at all times waste disposal at the Mount Isa Mines Landfill is carried out in accordance with directions from the person responsible for the control and operation of the Mount Isa Mines Landfill. At least one (1) person who is responsible for the control and operation of the Mount Isa Mines Landfill must be present during normal day time operating hours.
- F14
The holder of this environmental authority must ensure that measures are taken to ensure the Mount Isa Mines Landfill is operated and managed so as to minimise the generation of leachate.
- F15
Any surface migration of leachate and contaminated stormwater from the boundary of the Mount Isa Mines Landfill must be captured with the containment systems for the surface water containment areas shown in Schedule K - Figure 4 (TSF Containment Area) and/or Schedule K - Figure 5 (Mount Isa East Containment Area).
- F16
Large items for disposal must be compacted to minimise residual void space in the Mount Isa Mines Landfill.
- F17
Wastes deposited in any active waste disposal cell must be consolidated, compacted and covered with a layer of earthen material, as often as is necessary to effectively minimise the quantity of wind blown litter, odour and fly nuisance resulting from exposure of putrescible waste.
- F18
Material for the layer of earthen material must be readily available at all times in a quantity sufficient for not less than two (2) weeks normal operation of the waste disposal cell. Permit OFFICIAL Environmental Authority
- F19
The holder of this environmental authority must apply interim cover on waste disposal cells. This cover is to be placed on areas that are inactive for a period of four months or greater and does not include the operational areas at the cell face. The interim cover must conform to the following criteria: (a) consists of at least 300 mm of compacted material; (b) minimise infiltration of water into the waste and ponding of water on the surface of the cell; (c) is resistant to erosion by surface water flows.
- F20
Waste oil and used wet cell batteries may be temporarily stored in drums or other containers provided that the drums or containers are: (a) stored in an area designated for this purpose; (b) bunded to contain spillages and leakages; (c) securely sealed to prevent spillage.
- F21
Waste refrigerators, freezers, air conditioners or any other equipment containing ozone depleting gases received at the Mount Isa Mines Landfill must be either degassed by an appropriately qualified person at the Mount Isa Mines Landfill or, if degassed off site, accompanied by a degassing certificate signed by a qualified person.
- F22
All loading and unloading of regulated wastes must only take place in areas capable of containing and permitting recovery of any spill.
- F23
The holder of this environmental authority must ensure that sufficient equipment is available for the containment and recovery of regulated waste spills.
- F24
Where regulated waste is removed from the site, other than as permitted under another Schedule of this environmental authority, the holder of this environmental authority must ensure that: (a) the removal and transport of such wastes, where it constitutes an environmentally relevant activity under the Environmental Protection Regulation 2008, is carried out by a person licensed for carrying out this activity to a facility that is lawfully able to accept the waste under the Environmental Protection Act 1994; (b) records are kept of the following: (i) the date, quantity and type of waste removed; (ii) name of the regulated waste transporter(s) that removed the waste; (iii) the intended treatment/disposal destination of the waste. Note: Records of documents maintained in compliance with a waste tracking system established under the Environmental Protection Act 1994 or any other law for regulated waste will be deemed to satisfy this condition.
- F25
All vehicles (including load areas), containers and secondary containers used to transport regulated waste must be: (a) maintained in a proper and efficient condition at all times to prevent spillage or leakage of waste; (b) kept clean at all times whilst regulated waste is not being transported; (c) mounted securely, sealed and maintained in a condition that will prevent spillage or leakage of the waste.
- F26
Regulated waste is not permitted to be released from any vehicle or any container transported by that vehicle other than at the regulated waste disposal areas authorised under this Schedule.
- F27
Litter control methods must be effectively implemented at the Mount Isa Mines Landfill and arranged so as to confine windblown litter generated by the disposal of wastes in the waste disposal cells.
- F28
The holder of this environmental authority must ensure deterrents are utilised at the Mount Isa Mines Landfill so as to minimise the number of birds scavenging wastes deposited on any area of the Mount Isa Mines Landfill. Permit OFFICIAL Environmental Authority
- F29
Tyres stored awaiting disposal or transport for take-back and recycling or waste-to-energy options must be stockpiled in volumes less than three (3) metres in height and 200 square metres and at least ten (10) metres from any other tyre storage area.
- F30
Fire prevention measures must be implemented including the removal of all combustible materials, including grass and vegetation, within a ten (10) metre radius of any tyre storage area.
- F31
Subject to demonstrating to the administering authority that no other use higher in the waste management hierarchy can be practicably implemented, bulk rubber waste generated from the mining activities may be disposed of on site, preferentially (a) in non-acid forming materials within the waste rock dumps; or (b) in underground stopes; or (c) in the Existing Landfill at the Mount Isa Mines landfill
- F32
The Expansion Cell of the Mount Isa Mines Landfill must be designed and constructed: (a) under the supervision of an appropriately qualified person(s); and (b) in accordance with Schedule K - Figure 11b (Mount Isa Mines Landfill Expansion Cell)
- F33
The minimum standard landfill liner system for the Expansion Cell must include: (a) a 300mm select fill layer (e.g. compacted clay or compacted engineered fill); (b) a protection geotextile; (c) a 2mm HDPE geomembrane; and (d) a Geosynthetic Clay Liner.
- F34
A Construction Quality Assurance plan must be prepared by an appropriately qualified person and provided to the administering authority for: (a) the construction of the Expansion Cell, prior to commencement of the cell works; and (b) the final capping of the Expansion Cell, prior to the commencement of capping.
- F35
A landfill gas collection system for the Expansion Cell must be designed, installed, operated, and maintained by an appropriately qualified person(s).
- F36
A landfill gas monitoring program, developed by an appropriately qualified person in the fields of hydrogeology and landfill gas monitoring program design, must be implemented for the Expansion Cell to measure methane levels in the landfill structures and at the landfill site boundary.
- F37
The landfill gas monitoring program must monitor landfill gas at a minimum frequency of quarterly.
- F38
Upon approval from the administering authority, conditions F35, F36, F37, F38, F39 and F40 cease to apply where the risk of landfill gas is demonstrated to be low risk for the Expansion Cell, in accordance with the administering authority's guideline - Landfill siting, design, operation and rehabilitation based on either: (a) landfill gas monitoring program described in Condition F36; or (b) landfill gas assessment developed by an appropriately qualified person in the fields of hydrogeology and landfill gas monitoring program design for the Expansion Cell.
- F39
A landfill gas monitoring network must be installed during the closure of the General and Contaminated Waste Expansion Cell to measure methane levels. The network must consist of gas monitoring devices, such as monitoring bores and be developed by an appropriately qualified person in the fields of hydrogeology and landfill gas monitoring program design. Permit OFFICIAL Environmental Authority
- F40
Methane gas monitored must not exceed the following limits: (a) 500 parts per million at a height of 50mm above the final and intermediate cover surface including the batter slopes of the landfill unit (b) 25% of the lower explosive limit of the landfill site boundary when measured in facility structures (but excluding facility structures used for landfill gas control and recovery, and leachate collection system components) (c) 25% of the lower explosive limit in subsurface geology at or beyond the landfill site boundary (d) landfill gas collected is reused or efficiently flared in a manner that avoids environmental harm (e) 25% of the lower explosive limit within service pits, service trenches, stormwater drains or other structures beyond the landfill site boundary.
- F41
If methane gas levels exceeding methane standards referred to in condition F40 are detected, all necessary steps must immediately be taken to ensure protection of human health.
- F42
The following materials must not be used for dust suppression purposes: (a) leachate or landfill gas condensate (b) waste oil or other hydrocarbons.
- F43
A leachate collection system for the Expansion Cell must be designed and installed by an appropriately qualified person and maintained to: (a) collect leachate generated in the Expansion Cell; (b) convey the collected leachate out of the Expansion Cell to an appropriate leachate storage facility; and (c) restrict the height of the leachate above the liner system to a maximum level of 300 mm.
- F44
Leachate and stormwater runoff which has been in contact with waste materials in the Expansion Cell, must be collected in the leachate storage facility, and must be dealt with in accordance with the following hierarchy: (a) evaporation within the leachate storage facility; or (b) disposed to Kennedy Siltstone Open Cut where leachate storage facility capacity cannot be met; or (c) disposed of in accordance with condition F1 of this environmental authority.
- F45
Disposal of waste described in Condition F6 in the Existing Landfill must cease following the commissioning of the Expansion Cell by no later than 1 November 2023 with the exception of asbestos and bulk rubber waste.
- F46
When the deposition of waste to the Expansion Cell ceases, a final capping system must be designed by an appropriately qualified person and installed to: (a) minimise infiltration of water into the Expansion Cell and water ponding on the surface; and (b) minimise the likelihood of any erosion occurring to either the final capping system or the landfilled materials; and (c) allow for a landfill gas dissipation layer within the capping system. END OF CONDITIONS FOR SCHEDULE F Permit OFFICIAL Environmental Authority Schedule G - Noise and Vibration General
- G1
Unless otherwise authorised by this environmental authority, noise from the mining activities must not cause environmental harm at any sensitive place or commercial place.
- G2
In the event of a complaint made to the administering authority (which is neither frivolous or vexatious or based on mistaken belief) about noise generated in carrying out the mining activities, the holder of this environmental authority must undertake noise monitoring and recording within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint of environmental nuisance at any sensitive place or commercial place, and the results must be notified within fifteen (15) business days to the administering authority following completion of monitoring.
- G3
Noise generated by the mining activities will not be considered environmental harm if it complies with the limits detailed in Schedule G - Table 1 (Noise Limits). Schedule G - Table 1 (Noise Limits) Monday to Sunday Noise level dB(A) Place of measured as: measurement 7am to 6pm 6pm to 10pm 10pm to 7am LAeq,adj,1hour External noise limit Background1 + 3 Background1 + 3 Background1 + 3 LA1,adj,1hour Internal noise limit 45 45 45 1 `background' is the background noise level as defined in Schedule K - Figures 12a to 12d for day time noise at Mount Isa mine and Schedule K - Figure 14 for day time noise at George Fisher mine, and Schedule K - Figures 13a to 13d for evening and night time noise at Mount Isa mine and Schedule K - Figure 14 for evening and night time noise at George Fisher mine. Noise Monitoring
- G4
The holder of this environmental authority must develop and implement a noise monitoring program at a frequency not exceeding every six (6) months, to demonstrate compliance with the noise limits identified in Schedule G - Table 1 (Noise Limits).
- G5
Noise monitoring and recording must include the following descriptor characteristics and matters: (a) LAN,T (where N equals the statistical levels of 1, 10 and 90 and T = 60 mins); (b) LAeq,adj,1hour; LA1,adj,1hour; (c) Background noise level LA90; (d) The level and frequency of occurrence of impulsive or tonal noise and any adjustment and penalties to statistical levels; (e) Atmospheric conditions including temperature, relative humidity and wind speed and directions; (f) Effects due to any extraneous factors such as traffic noise; (g) Location, date and time of monitoring; (h) If the noise monitoring is due to a complaint and the complaint concerns low frequency noise: (i) Max LpLin,T; and (ii) one third octave band measurements in dB(Lin) for centre frequencies in the 10 - 200 Hz range.
- G6
The method of measurement and reporting of noise levels must comply with the most recent edition of the administering authority's Noise Measurement Manual or the most recent version of AS1055 Acoustics - Description and measurement of environmental noise. Permit OFFICIAL Environmental Authority Vibration and Overpressure
- G7
The carrying out of the mining activities must not cause the peak particle velocity and air blast overpressure limits specified in Schedule G - Table 2 (Blasting Overpressure and Vibration Limits) to be exceeded when measured at any sensitive place or commercial place. Schedule G - Table 2 (Blasting Overpressure and Vibration Limits) Limit Airblast overpressure 4 out of any 5 consecutive blasts must not be greater than 115 dB (Linear) Peak and no blasts are to be greater than 120 dB (Linear) Peak Ground vibration peak particle 10mm/second peak particle velocity for vibrations of less velocity than or equal to 35Hz and 25mm/second peak particle velocity for vibrations of greater than 35Hz
- G8
The holder of this environmental authority must monitor for peak particle velocity and air blast overpressure as set out in Schedule G - Table 2 (Blasting Overpressure and Vibration Limits) at the monitoring locations specified in Schedule G - Table 3 (Blasting Overpressure and Vibration Monitoring Locations) and Schedule K - Figure 15 (Blasting Monitoring Locations) for every blast on site. Schedule G - Table 3 (Blasting Overpressure and Vibration Monitoring Locations) Location Coordinates Easting (GDA94 MGA Zone 54) Northing Open Cut Blasting Softball Oval 342355 7709368 Sunflower 342528 7708151 St. Joseph's Training Centre 342331 7707025 Underground Blasting Softball Oval 342359 7709368 Sunflower 342528 7708151 Parkside North 342300 7705735 Parkside South 342294 7705494 St. Joseph's Training Centre 342331 7707025
- G9
The method of measurement and reporting of vibration levels must comply with the most recent edition of the administering authority's guideline Noise and vibration from blasting.
- G10
Unless surface blasting is required at any time for safety reasons, surface blasting must only occur between 6.00am and 8.30pm on weekdays and between 7.30am and 8.30pm on weekends when: (a) wind speeds are equal to or less than 19km/h; or (b) wind speeds are greater than 19km/h and there is no westerly wind. END OF CONDITIONS FOR SCHEDULE G Permit OFFICIAL Environmental Authority Schedule H - Water General
- H1
Contaminants must not be released directly or indirectly to any waters other than in accordance with the contaminant release requirements, conditions and limits stated in this environmental authority. Contaminant Release to Waters
- H2
Unless otherwise permitted under the conditions of this environmental authority, the release of mine affected water from the mining activities must only occur from the release points specified in Schedule H - Table 1 (Contaminant Release Points) and depicted in Schedule K - Figure 16 (Contaminant Release Points - Mount Isa East Containment Area), Schedule K - Figure 17 (Contaminant Release Points -TSF Containment Area) and Figure 18 (Contaminant Release Points - GFM / HHOC Containment Area). Note The release of mine affected water to any infrastructure contained within the surface water containment areas is permitted. Schedule H - Table 1 (Contaminant Release Points) Release Point1 Coordinates Receiving Waters Description (GDA94 MGA Zone 54) Easting Northing Mount Isa East Containment Area DAG Weir 342192 7707010 Via Death Adder Gully into Leichhardt River Old Workshops Pit 342179 7707275 Superpit Wall 342219 7707802 Leichhardt Via gully into Leichhardt Railway Pond 342227 7708221 River River Main Workshops Pond 342166 7710011 Via Lower Star Gully into Lower Star Gully Pond 342209 7709219 Leichhardt River Western Drain Pond 341827 7710425 King Gully Via King Gully into Clean In Clean Out Pond 341543 7710218 Leichhardt River King Gully Diversion Weir 341126 7710656 Lena Creek Via Lena Creek into
- X41
South Dam 341946 7705333 Leichardt River Hazeldene BSOC WRD North Sump 339429 7709417 Creek Via Hazeldene Creek into Leichardt River BSOC WRD South Sump 339158 7708957 Via Hazeldene Creek into TSF Containment Area 338700 7707590 Leichardt River 339043 7706735
- TD5
West Seepage Pond 339057 7708115 Hazeldene Via Hazeldene Creek into Tailings Dam 5 South Spillway 338414 7706035 Creek Leichhardt River Tailings Dam 5 North Spillway 336655 7704486
- TD7
Evaporation Pond 340285 7702632 Lena Creek Via Lena Creek into Tailings Dam 8 spillway 339741 7704908 Leichhardt River
- TD8
East Seepage Pond Kennedy Saddle TSF Seepage Dam Permit OFFICIAL Environmental Authority Release Point1 Coordinates Receiving Waters Description Future Kennedy Saddle Dam (GDA94 MGA Zone 54) Seepage Pond Easting Northing 340019 7704820 GFM / HHOC Containment Area Sediment Dam 4 341537 7723474 Sediment Dam 6 341427 7723606 Sediment Dam 3 341410 7724167 Sediment Dam 1 341350 7724583 Sediment Dam 12 341449 7725253 Heavy Vehicle Sediment Dam 342122 7725709 Sediment Dam 15 341234 7725743 Sediment Dam 20 340874 7725714 Sediment Dam 21 340807 7726003 George Fisher Tailings Dam 340120 7725858 Spring Creek Via Spring Creek into Lake Seepage Pond 340726 7726311 Moondarra Sediment Dam 22 Sediment Dam 23 340706 7726382 Sediment Dam 24 340948 7726317 Sediment Dam 26 341572 7724304 Sediment Dam 151 340790 7726485 BLOB Sediment Dam 340095 7726694 Sediment Dam 9 340054 7727246 Sediment Dam 201 340418 7727647 Sediment Dam 201 340661 7727728 (Controlled Release Point) 1 For a controlled release the release monitoring point is at the point of the release into the receiving water. Contaminant Release Monitoring
- H3
The release of mine affected water from the release points must be monitored for the quality characteristics and at the frequency specified in Schedule H - Table 2 (Contaminant Release Monitoring) at the location specified in Schedule H - Table 1 (Contaminant Release Points) or for a controlled release, at the point of the release into the receiving water. Permit OFFICIAL Environmental Authority Schedule H - Table 2 (Contaminant Release Monitoring) Monitoring applies to the Quality Characteristic Unit following surface water Monitoring Frequency3 containment area Event based sampling2 of discharge: Physicochemical S/cm All One sample must be taken Electrical conductivity within 15 hours of a pH6 pH units All discharge event1 commencing. A second Turbidity NTU All sample must be taken between 15 and 30 hours Total Suspended Solids mg/L All after the discharge event1 commences. Ammonia (as N) mg/L MIE, TSF Nitrate mg/L MIE, TSF Total Phosphorus mg/L MIE, TSF Total Hardness (as CaCO3) mg/L All Major Cations & Anions All major ions: Sulphate, Fluoride Chloride, Calcium, Magnesium, mg/L All Sodium, Potassium, Bicarbonate, Carbonate Metals & Metalloids (measured as total and dissolved)2,4 Aluminium mg/L All Antimony mg/L MIE5, TSF5 Arsenic mg/L All Beryllium mg/L MIE5, TSF5 Boron mg/L MIE5, TSF5 Cadmium mg/L All Where a discharge event1 has a duration of 30 hours or Copper mg/L All greater, samples must be taken daily for one week, and Chromium mg/L All once a week thereafter until
- H4
The holder of this environmental authority must install, operate and maintain a stream flow gauging station to determine and record stream flows at the locations specified in Schedule H - Table 3 (Stream Flow Monitoring). For the purpose of Schedule H, flow events are determined by data recorded at the relevant gauging stations specified in Schedule H - Table 3 (Stream Flow Monitoring). Schedule H - Table 3 (Stream Flow Monitoring) Receiving Release point Gauging Coordinates Flow recording water station Frequency description (GDA94 MGA Zone 54) description Easting Northing Leichhardt All release points from TSF Gauging 343230 7705344 Continuous - River Containment Area and Mount Isa station - 23rd measured at 15 East Containment Area Avenue minutes Leichhardt intervals1 River Spring Creek All release points from GFM / Gauging 345245 7723683 Continuous - HHOC Containment Area station - 338108 7710594 measured at 15 Spring Creek minutes Hazeldene All release points from TSF Gauging intervals1 Creek Containment Area that reports to station - Hazeldene Creek Hazeldene Continuous - measured at 15 Creek minutes intervals1 1 Flows may be measured as water heights during flow events. Permit OFFICIAL Environmental Authority Mine Affected Water Release Events
- H5
Unless otherwise permitted under the conditions of this environmental authority, the release of mine affected water to receiving waters must only take place in accordance with the maximum release rate for all combined release points for the relevant flow event specified in Schedule H - Table 4 (Contaminant Release During Flow Events) for the release point(s) specified in Schedule H - Table 1 (Contaminant Release Points).
- H6
Unless otherwise permitted under the conditions of this environmental authority, the release of mine affected water to surface receiving waters must not exceed the release limits stated in Schedule H - Table 5 (Interim Release Limits for Controlled Releases and Receiving Water Quality Trigger Levels) when measured at the release point(s) specified in Table 1 for each quality characteristic specified in Schedule H - Table 5.
- H7
If, during any release of mine affected water from a release point specified in Schedule H - Table 1 (Contaminant Release Points) , the receiving water quality trigger levels as specified in Schedule H - Table 5 (Interim Release Limits for Controlled Releases and Receiving Water Quality Trigger Levels) are exceeded at the downstream compliance point as specified in Schedule H - Table 8a (Receiving Water Reference Sites, Downstream Compliance Monitoring Points and Other Monitoring Points) and Table 8b (Sample Sites and Monitoring) the holder of this environmental authority must compare the downstream compliance site results to the reference site results and: (a) where the downstream compliance site result is the same or a lower value than the reference site result for the quality characteristic during the same sampling event then no action is to be taken; (b) where the downstream compliance site result exceeds the reference site result, undertake an investigation as to whether the exceedance is attributable to the mining activities and this must be advised to the administering authority; (c) if the exceedance is not attributable to the mining activities then no further action is required; (d) if the exceedance is attributable to the mining activities, complete the investigation in accordance with the ANZG (2018) methodology, into the potential for environmental harm and provide a written report to the administering authority in the next REMP Report, outlining: (i) details of the investigations carried out; (ii) actions taken or to be taken to minimise environmental harm; and (iii) if applicable propose revised release limits. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with condition H7(d), no further reporting is required for subsequent trigger events of an equal-to or lesser extent for that quality characteristic. Permit OFFICIAL Environmental Authority Schedule H - Table 4 (Contaminant Release During Flow Events) Receiving Release point Flow event1 Maximum release rate for Release limit water all combined release points As specified in Schedule H description - Table 5 (Interim Release Limits For Controlled Any flow No restriction during flow Releases and Receiving event Water Quality Trigger Levels) Leichhardt All release points Post low flow Release may also occur for River from TSF a flow event up to 4 weeks after the As specified in Schedule H Containment Area period of at natural low flow event - Table 5 (Interim Release that report to Lena least four (4) ceases Limits For Controlled Creek and all release days, with one Releases and Receiving points from Mount Isa day of at least Maximum total release rate Water Quality Trigger East Containment 1m3/s average is 200l/s2 Levels) Area flow. Minimum natural river flow As specified in Schedule H Medium flow - 10m3/s - Table 5 (Interim Release
- LR7
3,80016 0.78 Electrical Conductivity (S/cm) LR8 1,81516 335 Spear Creek 50015 Spring Creek 50015 pH (pH units) All 6.0 - 8.0 6.0 - 8.0 6.0 - 8.5 Turbidity (NTU) All For interpretation purposes Leichhardt River 30 Suspended Solids (mg/L) Spear Creek 39 14 140 Spring Creek 18 Ammonia (mg/L) All 0.9 0.9 9 Nitrate (mg/L) All 2.414 0.7 7 Total Phosphorus (mg/L) All 0.11 0.01 0.1 Major Cations & Anions Leichhardt River 4912
- LR7
55416 Sulphate (SO42) (mg/L) LR8 21216 26 260 Spear Creek 3912 Spring Creek 3012 Fluoride (mg/L) Leichhardt River 213 Permit OFFICIAL Environmental Authority Quality Characteristic Catchment Receiving Water Quality Trigger Release limit1 for Release limit for Release limit for Levels medium flow6, 8 high flow7, 8 All other major ions Calcium, Spear Creek and Spring any flow and post Chloride, Magnesium, Sodium, Creek low flow8 10 times 95th Potassium, Bicarbonate, All percentile of Carbonate 80th percentile of 10 times 80th reference4 Total hardness as CaCO3 reference4 percentile of reference4 Dissolved Aluminium10 (g/L) For interpretation purposes Dissolved Antimony10 (g/L) Dissolved Arsenic2, 10 (g/L) All For interpretation purposes Dissolved Beryllium10 (g/L) Dissolved Boron10 (g/L) Leichhardt River Metals & Metalloids10 820 8200 15075 Spear Creek 33312 Dissolved Cadmium10 (g/L) Spring Creek 35012 1 10 10 All 39012 All 915 13 130 130 1315 All 0.13 1.3 1.3 All 0.1315 94015 370 3700 3700 All 0.215 1.14 - for discharge 11.4 - for 11.4 - for discharge into Leichhardt discharge into into Leichhardt River Leichhardt River River 0.2 - for discharge 2 - for discharge 4.5 - for discharge into Hazeldene into Hazeldene into Hazeldene Permit OFFICIAL Environmental Authority Catchment Receiving Water Quality Trigger Release limit1 for Release limit for Release limit for Quality Characteristic Levels any flow and post medium flow6, 8 high flow7, 8 low flow8 Creek and Spring Creek and Spring Creek Creek Creek and Spring Creek Dissolved Copper10 (g/L) Leichhardt River 1112 24 240 713 Dissolved Chromium3, 10 (g/L) Spear Creek 6212 17.5 Dissolved Cobalt10 (g/L) Spring Creek 2012 1.0 10 28 All 3.315 Dissolved Lead10 (g/L) 2.8 28 401.2
- LR7
515 11 110 110 Total Recoverable LR8 0.0515 Hydrocarbons All 0.0315 0.05 0.5 0.5 Leichhardt River Spear Creek 1 10 100 Spring Creek 0.515 0.5 5 5 All 1816 716 6 60 60 615 815 41.6 - for discharge 416 - for 416 - for discharge 2312 into Leichhardt discharge into into Leichhardt River Leichhardt River River 1512 10 - for discharge 100 - for 200 - for discharge Organics into Hazeldene discharge into into Hazeldene Hazeldene Creek Creek and Spring and Spring Creek Creek and Spring Creek Creek No visible film Non Metallic Inorganics Permit OFFICIAL Environmental Authority Catchment Receiving Water Quality Trigger Release limit1 for Release limit for Release limit for Levels medium flow6, 8 high flow7, 8 Quality Characteristic any flow and post low flow8 Free Cyanide (mg/L) All 0.02211 0.02211 0.22 0.22 WAD Cyanide (mg/L) All 0.511 0.511 5 5 Total Cyanide (mg/L) All Interpretational purposes only 1 The low flow and post low flow release limits are based on default trigger limits or the 80th percentile of reference system, whichever is the higher. Where appropriate the default trigger values may be hardness adjusted in accordance with ANZECC/ARMCANZ (2000) section 7.4.4. The default trigger values - from ANZECC/ARMCANZ (2000) trigger values for aquatic ecosystems indicative of slightly-to-moderately disturbed tropical Australian upland river ecosystems Tables 3.3.4, Table 3.4.1 (high reliability trigger values) and moderate or low reliability triggers values (Section 8.3) if no value available in Table 3.4.1. Locally- derived trigger values are proposed to be developed in accordance with the guidance provided in Section 7.4.4. of the ANZECC/ARMCANZ (2000) guidelines (or later editions). The reference data set must be based on grab samples. For grab samples all metals and metalloids must be measured as total (unfiltered) and dissolved (filtered) - filtering must be conducted in the field. 2 Speciated arsenic concentrations can be included from the outset, or alternatively, an arsenic (total species) sample can be determined with analysis for As (III) and As (V) only required if the trigger level is exceeded - note that the sample bottle requirements for As (total species) and As (speciated) may differ. 3 Speciated chromium concentrations can be included from the outset, or alternatively, a chromium (total species) sample can be determined with analysis for Cr (III) and Cr (VI) only required if 1.0 g/L is exceeded - note that the sample bottle requirements for Cr (total species) and Cr (speciated) may differ. 4 Reference sites are the relevant reference sites in Schedule H - Table 8a (Receiving Water Reference Sites, Downstream Compliance Monitoring Points and Other Monitoring Points) and Table 8b (Sample Sites and Monitoring). 5 Based on the Queensland Water Quality Guidelines (2009). 6 The medium flow release limits for dissolved metals is based on 10 times 80th percentile of reference or 10 times default trigger limits, whichever is the higher. 7 The high flow release limits for total metals is based on 10 times 95th percentile of reference or 10 times default trigger limits, whichever is the higher. 8 Any flow, post low flow, medium flow and high flow as specified in the flow event column of Schedule H - Table 4 (Contaminant Release During Flow Events). 9 This footnote is deleted on 8 December 2023.
- H8
The uncontrolled release of mine affected water to receiving waters may only occur: (a) if the holder of this environmental authority has complied with condition D8; and (b) the holder of this environmental authority has taken all reasonable and practicable measures to prevent an uncontrolled release from the surface water containment area.
- H9
An uncontrolled release of mine affected water to receiving waters must not: (a) exceed the release limits at the spillway stated in Schedule H - Table 6 (Interim Release Limits for an Uncontrolled Release); and (b) cause the limit at the downstream compliance point as specified in Schedule H - Table 6 (Interim Release Limits for an Uncontrolled Release) to be exceeded. Schedule H - Table 6 (Interim Release Limits for an Uncontrolled Release) Quality Characteristic Release limit at the spillway Limit at downstream compliance point1 Electrical conductivity5 5000 1000 (S/cm) pH4 (pH units) 5.5 to 9 6 to 8.5 Turbidity (NTU) Must be measured for interpretation purposes Suspended Solids (mg/L) Must be measured for interpretation 69 purposes Ammonia (mg/L) Must be measured for interpretation 99th percentile of reference2 Nitrate (mg/L) purposes 99th percentile of reference2 Must be measured for interpretation purposes Total Phosphorus (mg/L) Must be measured for interpretation 99th percentile of reference2 purposes Sulphate (SO42-) (mg/L) Must be measured for interpretation 250 purposes Fluoride (mg/L) Must be measured for interpretation 2 purposes All other major ions Must be measured for interpretation purposes Calcium, Magnesium, Chloride, Sodium, Potassium, Bicarbonate, Carbonate Total hardness as CaCO3 Must be measured for interpretation purposes Total Aluminium (g/L) Must be measured for interpretation 2280 purposes Total Antimony (g/L) Must be measured for interpretation 3 purposes Total Arsenic3 (g/L) Must be measured for interpretation 13 purposes Permit OFFICIAL Environmental Authority Quality Characteristic Release limit at the spillway Limit at downstream compliance point1 Total Beryllium (g/L) 100 Total Boron (g/L) Must be measured for interpretation 370
- H10
An estimate of the daily quantity of contaminants released from each release point must be based on available measured data recorded at the release points in Schedule H - Table 1 (Contaminant Release Points).
- H11
The release of contaminants directly or indirectly to waters: (a) must not produce any visible discolouration of receiving waters; nor (b) must not produce any slick or other visible or odorous evidence of oil, grease or petrochemicals; nor (c) contain visible floating oil, grease, scum, litter or other objectionable matter.
- H12
Releases to waters must be undertaken so as to minimise erosion of the bed and banks of the receiving waters, or cause a material build up of sediment in such waters. Notification of release event H12a The holder of this environmental authority must provide the following information in the specified electronic format via WaTERS within 28 days of a release of mine affected water from a release point specified in Schedule H - Table 1 (Contaminant Release Points): a) release commencement date/time; b) release cessation date/time; c) release point(s); d) natural flow volume in receiving water; e) volume of water released; f) all in-situ water quality monitoring results Note: Successive or intermittent releases occurring within 24 hours of the cessation of any individual release can be considered part of a single release event. Onsite Water Storages
- H13
Water storages stated in Appendix 1 - Tables 1, 2 and 3 of this environmental authority must be monitored on a regular basis, but at least annually for the water quality characteristics specified in Schedule H - Table 7 (Onsite Water Stock Exclusion Limits).
- H14
In the event that waters storages defined in Appendix 1 - Tables 1, 2 and 3 of this environmental authority exceed the stock exclusion limits defined in Schedule H - Table 7 (Onsite Water Stock Exclusion Limits), the holder of this environmental authority must implement measures, where practicable, to prevent access to waters by livestock. Permit OFFICIAL Environmental Authority Schedule H - Table 7 (Onsite Water Stock Exclusion Limits) Quality Characteristic Test Value Stock Exclusion Limit3 pH4 (pH unit) Range Greater than 4, less than 92
- H15
For a controlled release of mine affected water during a medium or high flow event or an uncontrolled release, the holder of this environmental authority must monitor the quality characteristics relevant to the release in accordance with Schedule H - Table 2 (Contaminant Release Monitoring) of the water at each monitoring point specified in Schedule H - Table 8a (Receiving Water Reference Sites, Downstream Compliance Monitoring Points and Other Monitoring Points) and in Schedule K - Figure 22 (Receiving Water Reference Sites, Downstream Compliance Monitoring Points and Other Monitoring Points) for the relevant release point. Schedule H - Table 8a (Receiving Water Reference Sites, Downstream Compliance Monitoring Points and Other Monitoring Points) Release Point Downstream Reference site1 Other monitoring location1 compliance point1 Mount Isa East Containment Area DAG Weir LR4 DAG1, LR3, LR8, LR9, LR10 Old Workshops Pit LR3, LR8, LR9, LR10 Superpit Wall LR1, MC_01, SC01, Railway Pond Main Workshops Pond LR5 LR_UP, LRSCJ Lower Star Gully Pond Western Drain Pond LR6 LR3, LR8, LR9, LR10 CICO Pond King Gully Diversion Weir LR7 LSG1, LR3, LR8, LR9, LR10 LR1, MC_01, SC01. LR_UP, LRSCJ
- LR8
LR3, LR7, LR9, LR10 Permit OFFICIAL Environmental Authority Release Point Downstream Reference site1 Other monitoring location1 compliance point1 LR3, LR7, LR9, LR10
- X41
South Dam SP2, LR9, LR2, LR3 LR1, MC_01, SC01, BSOC WRD North Sump LR_UP, LRSCJ BSOC WRD South Sump SP1, HZL, LR10 SCNRS, MC01, LR1,
- TD5
West Seepage Pond BSC Tailings Dam 5 South Spillway Tailings Dam 5 North Spillway TSF Containment Area
- TD7
Evaporation Pond Tailings Dam 8 spillway SP1 SCNRS, MC01, LR1, SP2, LR9, LR 10
- TD8
East Seepage Pond BSC Kennedy Saddle Dam Seepage Pond LR2 LR1, MC_01, SC01, LR3, LR8, LR9, LR 10 Future Kennedy Saddle Dam BSC Seepage Pond GFM / HHOC Containment Area Sediment Dam 4 SC3 Sediment Dam 6 Sediment Dam 3 SC4 Sediment Dam 26 Sediment Dam 1 SPC04, SPC08 SC5 Sediment Dam 12 Sediment Dam 15 SC6, SPCD Sediment Dam 20 Sediment Dam 21 SC2 George Fisher Tailings Dam Seepage Pond Sediment Dam 22 Sediment Dam 23 Sediment Dam 24 Sediment Dam 151 BLOB Sediment Dam Heavy Vehicle Sediment Dam Sediment Dam 9 Sediment Dam 201 Sediment Dam 201 (Controlled Discharge Outlet) Permit OFFICIAL Environmental Authority Schedule H - Table 8b (Sample Sites and Monitoring) Sample point Location Coordinates Site Type Monitoring2 name Description (GDA94 MGA Zone 54) Easting Northing Leichardt River LR_UP Upper reaches 338941 7690635 Reference WQ of Leichardt River
- LR1
Mount Isa Mines 343347 7701557 Reference WQ, SQ and Mount Isa township Lena Creek at Old Mica Creek Road -
- LR2
downstream of 342909 7704855 Compliance WQ, SQ Tailings Dam 8 prior to confluence with Leichhardt River Leichhardt River
- LR3
at 23rd Avenue - 343230 7705344 Compliance WQ, SQ downstream of Lena Creek
- LR4
downstream of 342697 7707298 Compliance WQ, SQ, Macro Death Adder Gully Leichhardt River at Velodrome
- LR5
Walkway 342766 7708138 Compliance WQ, SQ Crossing - upstream of Railway Pond Permit OFFICIAL Environmental Authority Sample point Location Coordinates Site Type Monitoring2 name Description (GDA94 MGA Zone 54) Easting Northing Leichhardt River
- LR6
at Alma St - 342862 7708484 Compliance WQ, SQ downstream of Railway Pond King Gully just upstream of
- LR7
release into 343118 7710165 Compliance WQ, SQ, Macro 342929 7710810 Leichardt River 343314 7712132 at Davis Rd KG_01 King Gully Compliance WQ, SQ LR8
- LR9
Leichhardt River Compliance WQ, SQ, Macro
- LR10
at Moondarra BCRS Crossing - 346382 7718279 Compliance WQ, SQ, Macro BCRS_UP downstream of King Gully 348095 7721261 Compliance WQ Leichhardt River 343605 7709687 Monitoring WQ, SQ, Macro just upstream of Spear Creek 345935 7707714 Monitoring WQ, SQ, Macro inflow Leichhardt River - near inflow into Lake Moondarra - downstream of Spear Creek inflow Breakaway Creek downstream of urban influences Breakaway Creek upstream of urban influences Spear Creek BSC Big Sandy Creek 335403 7712492 Reference WQ, SQ SCNRS upstream of road Reference WQ, SQ HZL crossing 341301 7716001 SP1 Spear Creek - 338111 7710592 Compliance WQ, SQ North 341598 7714786 Compliance WQ, SQ Hazeldene Creek - adjacent to the existing stream flow monitoring gauge Spear Creek - just upstream of GF Haul Road Permit OFFICIAL Environmental Authority Sample point Location Coordinates Site Type Monitoring2 WQ, SQ name Description (GDA94 MGA Zone 54) WQ, SQ, Macro Easting Northing WQ, SQ WQ, SQ Spear Creek just WQ, SQ
- SC2
Creek Weir 341027 7728141 Compliance downstream of Sediment Dam 9 Spring Creek Weir
- SC3
downstream of 341753 7723586 Compliance Sediment Dam 4 and 6 Offset Creek Weir
- SC4
downstream of 341642 7724390 Compliance Sediment Dam 1 and 3 Spring Creek
- SC5
inflow into Lake 345073 7723677 Compliance Moondarra
- SC6
downstream of 341983 7724789 Compliance Sediment Dam 12 SPCD Spring Creek 343542 7725188 Compliance upstream of Gidyea Creek
- H17
A Receiving Environment Monitoring Program (REMP) must be implemented to monitor and record the effects of the release of contaminants on the receiving environment periodically and whilst contaminants are being discharged from the site, with the aims of identifying and describing the extent of any adverse impacts to local environmental values and monitoring any changes in the receiving waters. For the purposes of the REMP, the receiving environment is the waters of the Leichhardt River and tributaries including Spring Creek and Spear Creek within the Lake Moondarra Catchment and includes Lake Moondarra.
- H18
The REMP must: (a) assess the condition or state of receiving waters and sediments, including upstream conditions, spatially within the REMP area, considering background water quality and sediment quality characteristics based on accurate and reliable monitoring data that takes into consideration temporal variation (e.g. seasonality); (b) be designed to facilitate assessment against water quality and sediment quality objectives for the relevant environmental values that need to be protected; (c) include monitoring from reference sites, downstream compliance points and other monitoring points at the locations specified in Schedule H - Table 8a (Receiving Water Reference Sites, Downstream Compliance Monitoring Points and Other Monitoring Points), and Schedule H - Table 8b (Sample Sites and Monitoring) and Schedule H - Table 9 (Sediment Quality Monitoring Points and Frequency); (d) specify the frequency and timing of sampling required in order to reliably assess ambient conditions and to provide sufficient data to derive site specific background reference values in accordance with the Queensland Water Quality Guidelines. This should include monitoring during periods of natural flow irrespective of mine or other discharges; (e) include monitoring for potential adverse environmental impacts caused by a release of mine affected waters from the mining activities (if any); (f) include monitoring of water quality and sediment quality characteristics specified in Schedule H - Table 2 (Contaminant Release Monitoring) (in addition to dissolved oxygen saturation and temperature) and Schedule H - Table 10 (Sediment Trigger Levels and Contaminant Limits) to assess the extent of the compliance of concentrations with water quality and sediment quality objectives nominated in this environmental authority; (g) include monitoring of biological indicators; (h) apply procedures and/or guidelines from ANZG (2018), CSIRO (2013), and the latest edition of the administering authority's Monitoring and Sampling Manual or other relevant guideline documents / suitable modification of any of those methods including design for program, sampling and analysis methods and quality assurance and control; (i) incorporate stream flow and hydrological information in the interpretation of water, sediment and biological data.
- H19
This condition was deleted on 8 December 2023. H20a Each year from 1 July 2018, a report outlining the findings of the REMP, including all monitoring results and interpretations for the period 1 July to 30 June the following year, must be prepared and demonstrate the REMP has been implemented in accordance with condition H18 and submitted to the administering authority by 1 November each year. This report should include: (a) an assessment of background water quality and sediment quality; (b) a graphical presentation of at least the past five years previous monitoring data; (c) any assimilative capacity for those contaminants monitored; and (d) the suitability of current discharge limits to protect downstream environmental values. The report may include revisions to the REMP and the holder of this environmental authority must give due consideration to any comments made on the revised REMP by the administering authority. H20b If monitoring implemented under Condition H17 identifies an exceedance of the receiving surface water quality trigger levels as specified in the low flow column of Schedule H - Table 5 (Release Limits for Controlled Releases and Receiving Water Quality Trigger Levels) at the downstream compliance points as specified in Schedule H -Table 8b (Sample Sites and Monitoring), the holder of this environmental authority must compare the downstream results to the reference site results and: Permit OFFICIAL Environmental Authority (a) where the downstream compliance point result is the same or a lower value than the reference site results for the quality characteristic during the same sampling event then no action is to be taken; (b) where the downstream compliance point result exceeds the reference site results, undertake an investigation as to whether the exceedance is attributable to the mining activities; (c) if the exceedance is not attributable to the mining activities then no further action is required; (d) if the exceedance is attributable to the mining activities, complete the investigation in accordance with the ANZG (2018) methodology, into the potential for environmental harm as part of the REMP Report, outlining: i) details of the investigation carried out; ii) details of the environmental impacts observed; and iii) actions taken or to be taken to minimise environmental harm. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with condition H7(d), no further reporting is required for subsequent trigger events of an equal-to or lesser extent for that quality characteristic. Sediment
- H21
Sediment quality must be monitored at the locations and frequency specified Schedule H - Table 9 (Sediment Quality Monitoring Points and Frequency) for each quality characteristic and at the monitoring frequency specified in Schedule H - Table 10 (Sediment Trigger Values and Contaminant Limits). Schedule H - Table 9 (Sediment Quality Monitoring Points and Frequency) Monitoring Point Coordinates Frequency (GDA94 MGA Zone 54) Easting Northing Leichardt River Catchment Reference points SC_01 338941 7690635 Two sampling rounds per wet season: MC_01 339849 7696864 LRSCJ 344242 7695059 1. During the wet season after the creeks
- LR1
343347 7701557 have been flushed once by rainfall. 2. After the wet season flows have ceased, but water is still present Compliance points
- LR2
342909 7704855 Two sampling rounds per wet season:
- LR4
342766 7708138 have been flushed once by rainfall. 2. After the wet season flows have ceased, but water is still present
- LR7
343163 7710286 KG_01 342929 7710810
- LR9
346382 7718279 Spear Creek Catchment Reference points Two sampling rounds per wet season: BSC 335403 7712492 Permit OFFICIAL Environmental Authority Monitoring Point Coordinates Frequency SCNRS (GDA94 MGA Zone 54) 1. During the wet season after the creeks Compliance points have been flushed once by rainfall. HZL Easting Northing 2. After the wet season flows have
- SC6
342792 7715705 SPCD Spring Creek Catchment SC5 336457 7730233 Two sampling rounds per wet season: 342600 7728790 1. During the wet season after the creeks have been flushed once by rainfall. 2. After the wet season flows have ceased, but water is still present 341027 7715705 Two sampling rounds per wet season: 341983 7724789 343542 7725188 1. During the wet season after the creeks 345073 7723677 have been flushed once by rainfall. 2. After the wet season flows have ceased, but water is still present Permit OFFICIAL Environmental Authority Schedule H - Table 10 (Sediment Trigger Values and Contaminant Limits1) Quality Characteristic Catchment Trigger Level Contaminant Limit Arsenic (mg/kg) All 202 702 Boron (mg/kg) All 26 Not applicable Cadmium (mg/kg) All 1.52 102 Chromium (mg/kg) All 802 3702 Cobalt (mg/kg) Leichhardt River 26 Not applicable Spear Creek 26 Not applicable Copper (mg/kg) Spring Creek 53 155 Lead (mg/kg) All 652 2702 Leichhardt River 502 2202 Manganese (mg/kg) Spear Creek 502 3004 Nickel (mg/kg) Spring Creek 502 2202 All 4607 11007 All 212 522 Selenium (mg/kg) All 26 Not applicable Silver (mg/kg) All 12 42 Zinc (mg/kg) All 2002 4102 Uranium (mg/kg) All 208 1008 Particle size distribution All For interpretive purposes 1 Analysis for metals/metalloids concentrations in sediment must be conducted on the <2mm fraction of the sample and measured as total contaminant concentration initially and if exceeding the trigger level then followed by a dilute acid extractable concentration in a manner consistent with the revision of the ANZG Sediment Quality Guidelines, and CSIRO (2016). In the event the total contaminant concentration exceeds the trigger level / contaminant level, but the dilute acid extractable concentration is less than the trigger level / contaminant level, this is not considered an exceedance under Condition H22 or Condition H23.
- H22
If quality characteristics of sediments measured at the compliance points specified in Schedule H - Table 9 (Sediment Quality Monitoring Points and Frequency) exceed any of the corresponding trigger levels specified in Schedule H - Table 10 (Sediment Trigger Levels and Contaminant Limits), the compliance points results must be compared to the reference points results and: (a) where the compliance results is less than or equal to the reference point result for the quality characteristic then no action is to be taken, or (b) where the compliance point results exceed the reference point results for the quality characteristic, then the environmental authority holder must complete an investigation in accordance with the ANZG (2018) methodology and provide a written report to the administering authority within 3 months from receipt of the sample results, including: (i) reasons for the variation in the parameter level (ii) the potential for impact to environmental values; (iii) if the variation is attributable to the mining activity, what actions taken to minimise impact to environmental values; and (iv) details of the investigation carried out.
- H23
The mining activities must not cause the quality characteristics of sediments measured at the compliance points specified in Schedule H - Table 9 (Sediment Quality Monitoring Points and Frequency) to exceed any of the corresponding contaminant levels specified in Schedule H - Table 10 (Sediment Trigger Levels and Contaminant Limits). Water used for dust suppression
- H24
Water contaminated by the mining activities can only be used for dust suppression if used within the surface water containment areas as specified in Schedule K - Figure 4 (TSF Containment Area), Schedule K - Figure 5 (Mount Isa East Containment Area) and Schedule K - Figure 6 (GFM / HHOC Containment Area). Water General
- H25
All determinations of water quality must be: (a) performed by a person or body possessing appropriate experience and qualifications to perform the required measurements; (b) made in accordance with methods prescribed in the latest edition of the latest edition of the administering authority's Monitoring and Sampling Manual; (c) downstream compliance samples must be collected as soon practicable after the release sample is taken; (d) carried out on representative samples; (e) for laboratory determinations, carried out in a laboratory accredited (i.e. accredited by the National Association of Testing Authorities) for the method of analysis being used. Water Management Plan
- H26
A Water Management Plan must be developed by 1 November 2012 that provides for the proper and effective management of water to ensure compliance with the relevant conditions of this environmental authority.
- H27
The holder of this environmental authority must implement the Water Management Plan.
- H28
The Water Management Plan must include at least the following elements: (a) a description of the containment systems and their sub-components; (b) sources of water and contaminants into the containment systems; (c) an operational simulation water balance model in accordance with the conditions in Schedule D; (d) measures to minimise contamination of water; (e) emergency and contingency planning; (f) monitoring and review. Permit OFFICIAL Environmental Authority
- H29
Each year the holder of this environmental authority must undertake a review of the Water Management Plan following the wet season (i.e. by 1 May) to evaluate the effectiveness of the Water Management Plan. The review must also consider longer term simulations using contiguous sequences of historical rainfall data. Erosion and Sediment Control Plan
- H30
By 1 November 2012 the holder of this environmental authority must develop an Erosion and Sediment Control Plan. The Erosion and Sediment Control Plan must be developed by an appropriately qualified person and implemented for all stages of the mining activities on the site to minimise erosion and the release of sediment to receiving waters and contamination of stormwater.
- H31
The Erosion and Sediment Control Plan may be included in the Plan of Operations or the Water Management Plan, and provide for at least the following stormwater management functions: (a) prevent or minimise the contamination of stormwater; (b) diverting uncontaminated stormwater run-off around areas disturbed by mining activities or where contaminants or wastes are stored or handled; (c) contaminated stormwater runoff, rainfall and leachate is collected, treated, reused, or released in accordance with the conditions of this environmental authority; (d) roofing or minimising the size of areas where contaminants or wastes are stored or handled; (e) erosion and sediment control structures are placed to minimise erosion of disturbed areas and prevent the contamination of any receiving waters; (f) processes or procedures to ensure that erosion and sediment control structures are maintained and adequate storage is available in sediment dams; (g) training of staff that will be responsible for maintenance and operations of sediment and erosion control structures. Maintenance and cleaning of vehicles, plant or equipment
- H32
The maintenance and cleaning of any vehicles, plant or equipment must be carried out in the surface water containment areas shown in Schedule K - Figure 4 (TSF Containment Area), Schedule K - Figure 5 (Mount Isa East Containment Area) and Schedule K - Figure 6 (GFM / HHOC Containment Area). Groundwater
- H33
The extraction of groundwater by the mining activities must not cause environmental harm to any groundwater dependant ecosystems. H34a Groundwater quality and standing water level must be monitored in accordance with the Groundwater Monitoring Program required by conditions H46a and H46b and: (a) at the locations and frequencies specified in Schedule H - Table 11 (Groundwater monitoring locations and frequency); and (b) for standing water level and the quality characteristics identified in Schedule H -Table 12 (Groundwater quality limits). H34b The groundwater quality limits specified in Schedule H -Table 12 (Groundwater quality limits) do not apply to any groundwater bore defined as a Transitional Bore within Schedule H - Table 11 (Groundwater monitoring locations and frequency), until completion of groundwater remediation works and subject to condition H34c. H34c The holder of this environmental authority must ensure compliance with conditions H35 and H36 for each Transitional Bore: (a) Within 12 months of completing groundwater remediation works, if groundwater quality characteristics do not exceed the relevant groundwater quality limits specified in Schedule H -Table 12 (Groundwater quality limits); or (b) Within a longer period agreed by the administering authority, if the Groundwater Monitoring Report demonstrates that revision of groundwater quality limits for the relevant Transitional Bore is required. Permit OFFICIAL Environmental Authority H34d The responsibility of maintaining access to any groundwater bore listed under `Off lease' within Schedule H - Table 11 (Groundwater monitoring locations and frequency) remains with the holder of this environmental authority. If access to any groundwater bore is denied, the holder of this environmental authority must establish and monitor a suitable replacement bore that has been accepted by the administering authority in writing. H34e All limits listed as "TBD" in Schedule H -Table 12 (Groundwater quality limits) must be nominated within an amendment application lodged pursuant to the Environmental Protection Act 1994 to this environmental authority by 30 March 2028. Permit OFFICIAL Environmental Authority Schedule H -Table 11 (Groundwater monitoring locations and frequency) Monitoring Catchment / Zone Location coordinates Bore type Hydro- Top of Surface Total Top of Bottom of Minimum point (GDA94 MGA Zone 54) stratigrap casing RL depth screened screened Monitoring Interpretation hic Unit1 RL interval interval frequency GFM-MB-23.06 GFM - Gidyea Creek Easting Northing Compliance (mAHD) (mAHD) (mBGL) (mBGL) (mBGL) GFM-MB-23.04 GFM - Spring Creek 339101 7727233 Compliance HWA 398.511 397.485 30 Quarterly2 GFM-MB-23.05 GFM - Spring Creek 344894 7723666 Compliance FWA 330.265 329.038 25.5 23 29 Quarterly2 GFM-MB-23.07 GFM - Gidyea Creek 342700 7728206 Compliance FWA 345.844 344.679 30 19 25 Quarterly2 GFM-MB-25.02 GFM 343136 7724316 Interpretation FWA 337.808 336.576 29 23 29 Quarterly2 GW19-04 GFM - Spring Creek 338575 7729013 Interpretation HWA 372.649 371.679 30 23 29 Quarterly2 GFM-MB-21.01 GFM - Gidyea Creek 341442 7728427 Interpretation FWA 351.078 350.391 39 23 29 Quarterly2 341911 7725108 FWA 347.811 346.762 36 30 36 Quarterly2 Bore 47 GFM - Gidyea Creek 30 36 342174 7724487 FWA 343.916 343.316 30 Quarterly 24 30
- NB08
Hazeldene lower 338118 7707756 Compliance HWA 367.781 367.244 15 11 14 Quarterly TD5-MB-21.04 Hazeldene lower 337698 7712966 Compliance HWA 345.899 345.29 55 46 55 Quarterly Bore 36 Hazeldene lower 338567 7707886 Interpretation HWA 376.879 375.965 21.05 11 17 Quarterly Bore 37 Hazeldene upper 338359 7705932 Compliance HWA 378.641 378.056 24.6 19 24.6 Quarterly GW19-253 Hazeldene upper 338470 7706973 Compliance HWA 381.002 380.301 30.5 21.5 30.5 Quarterly HZL-MB-23.013 Hazeldene upper 338042 7706059 Interpretation HWA 376.293 375.673 18.5 12 18 Quarterly Hazeldene upper 337478 7706206 Compliance HWA 378.124 377.076 15 11 15 Quarterly2 Bore 04 Hazeldene upper 337812 7706949 Interpretation HWA 373.503 373.172 48.5 18.08 42.03 Quarterly Hazeldene upper 337488 7707166 Interpretation HWA 375.558 375.393 60 41.5 59.5 Quarterly HZL-MB.21.02 Hazeldene upper 338514 7707307 Interpretation HWA 380.454 379.371 21.5 10 16 Quarterly TD5-MB-21.08 Hazeldene upper 337927 7705523 Interpretation HWA 383.106 382.056 30 17 29 Quarterly TD7-MB-23.08 Hazeldene upper 338383 7705621 Compliance HWA 388.72 387.795 28.8 23 28 Quarterly TD7-MB-21.03 Hazeldene upper 336880 7704907 Compliance HWA 400.5 399.5 24 18 24 Quarterly2 WW-MB-21.06 WW-MB- Hazeldene upper 337645 7704951 Compliance HWA 386.8 385.8 24.5 17 22 Quarterly2 21.023,4 Permit OFFICIAL Environmental Authority Monitoring Catchment / Zone Location coordinates Bore type Hydro- Top of Surface Total Top of Bottom of Minimum point (GDA94 MGA Zone 54) stratigrap casing RL depth screened screened Monitoring Compliance hic Unit1 RL interval interval frequency Easting Northing (mAHD) (mAHD) (mBGL) (mBGL) (mBGL) Compliance HWA Quarterly2 WW-MB- Hazeldene upper 337409 7704938 Interpretation 395.5 394.4 24.5 17 24 21.033,4 Interpretation Hazeldene upper 337207 7704933 Interpretation HWA 391.5 390.469 25.35 19 25 Quarterly2 WW-MB- Compliance 21.053,4 Hazeldene upper 337840 7704718 Compliance HWA 397.576 396.418 33.5 24 32 Quarterly2 WW-MB-23.033 Hazeldene upper 337335 7704661 HWA 396.2 395.067 27.8 18 24 Quarterly2 Hazeldene upper 336625 7704626 HWA 403.8 403.152 28 20 26 Quarterly2 WW-MB-21.12 Kennedy Creek 340760 7705078 PMA 380.2 379.55 12 6.5 12 Quarterly2 357.9 356.857 47.7 28.7 45.8 GW19-42 341695 7703432 PMA Quarterly GW19-11 Bore 02 Lena Creek KSOC-MB- King Gully 341706 7710481 Compliance PMA 349.472 348.422 60 45 60 Quarterly2 21.01 Bore 41 King Gully 341736 7710415 Interpretation PMA 347.294 347.014 30.5 21.5 30.5 Quarterly LR-MB-23.04 King Gully LR-MB-23.04(s) King Gully 342953 7710863 Interpretation SMA 338.2 336.968 35 28.5 34.5 Quarterly
- NB21
Lena Creek Bore 33 Lena Creek 342157 7709724 Interpretation PMA 355.179 354.199 72 48 72 Quarterly GW19-39 Lena Creek 343189 7710091 Interpretation SMA 338.516 338.011 50 40 50 Quarterly 342694 7707604 Interpretation SMA 344.03 343.418 52 36 49 Quarterly 340830 7702627 Compliance FWA 362.42 361.903 27 8.5 23.5 Quarterly 342126 7704173 Interpretation PMA 352.859 351.739 36 24 36 Quarterly 340877 7702630 Interpretation FWA 361.858 361.201 48 33 45 Quarterly Permit OFFICIAL Environmental Authority Monitoring Catchment / Zone Location coordinates Bore type Hydro- Top of Surface Total Top of Bottom of Minimum point Mica Creek (GDA94 MGA Zone 54) Compliance stratigrap casing RL depth screened screened Monitoring hic Unit1 RL interval interval frequency MC-MB-25.02 Easting Northing (mAHD) (mBGL) 341821 7698926 FWA (mAHD) 367.4 30 (mBGL) (mBGL) Quarterly2 368.495 23 29
- NB10
Spear Creek 342098 7715415 Interpretation PMA 335.928 335.374 30 25 30 Quarterly 1 Hanging Wall Aquifer (PMA), Primary Mine Aquifer (PMA), Secondary Mine Aquifer (SMA), Footwall Aquifer (FWA) 2 Monitoring at frequency of 5 times per year with even spread is required at this site until minimum 12 records of data is available for determining interim limits; once the minimum requirement is met, monitoring frequency can continue as quarterly (4 times per year) . 3 Off lease - The access to the groundwater bore off lease is subject to condition H34d. 4 Transitional Bore - The groundwater quality in the transitional bore must be monitored in line with the criteria set in conditions H34b-H34c. 5 These bores must comply with the water level specified within Schedule H -Table 12 (Groundwater quality limits) and must be monitored for water quality characteristics for interpretation purposes. 6 These bores must be monitored until the tailings inundation is evident. Permit OFFICIAL Environmental Authority Schedule H -Table 12 (Groundwater quality limits) Analyte1 pH2 (field) EC3 Sulfate3 Fluoride4 Arsenic4 Boron4 Cadmium4 Cobalt4 Copper4 Lead4 Manganese4 Molybdenum4 Uranium4 Zinc4 Aluminium Iron Major Ions: (lab) Calcium, Units pH unit pH unit -S/cm mg/L mg/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L Magnesium, Limit A Limit A Limit Limit Limit B Limit Limit Limit B Limit Limit B Limit Limit B Limit B Limit B Limi Sodium, Bore ID (lower) (upper) tB For For A A 2.5 B B 0.2 B 2* B 1900 34 9* 26* Interpretati Interpr Potassium,
- NB21
6.5 8.5 2.8* 4* 260* 3.4 1900 34 3* 141* etation Chloride, 1700 160 24 940 2* 1.4 3.4 TBD on purpos Carbonate and GW19-11 6.5 8.5 3.4 34 TBD TBD purposes Bicarbonate 5000 TBD 24 940 5.2* TBD 1900 es KSOC-MB- 90* 3.4 1900 mg/L 21.01 5.2* 11* 1900 21* 4* 3800 For Interpretation KSOC-MB- 11* 6* 1900 purposes 23.02 1.4 3.4 TBD Water level: 6 8.5 TBD TBD 2.5 24 940 0.2 TBD TBD 3.4 1900 320mAHD TBD 3.4 TBD For Interpretation purposes - Water level on bore KSOC-MB-23.02 above trigger of 320mAHD TBD 3.4 TBD HZL-MB- 3.4 TBD 23.015 6.5 8.5 TBD TBD 2.5 24 940 TBD TBD TBD 3.4 34 TBD TBD Bore 37 6.5 8.5 5000 660 3.9* 24 940 1* 4* 50* 129* 113* Bore 36 6.5 8.5 7100 3400 2.5 24 940 0.2 2.2* 34 72* 52* S35 6.5 8.5 7800 3620 2.5 24 940 0.5* 10* 34 32* 57* Bore 40 6.5 8.5 2450 340 2.5 24 940 0.2 1.4 34 23* 62* BSOC-MB- 21.115 8.5 34 TBD TBD BSOC-MB- 6.5 7000 2800 TBD 31* 940 0.2 1.4 21.145 8.5 34 TBD TBD GFM-MB- 23.04 6.5 7000 1700 TBD 24 940 0.2 1.4 GFM-MB- 8.5 TBD TBD 23.05 6 TBD TBD 2.5 24 940 34 TBD TBD GFM-MB- 23.07 8.5 TBD TBD 6.5 TBD TBD 2.5 24 940 34 TBD TBD 8.5 TBD TBD 6 TBD TBD 2.5 24 940 34 TBD TBD Permit OFFICIAL Environmental Authority Analyte1 pH2 (field) EC3 Sulfate3 Fluoride4 Arsenic4 Boron4 Cadmium4 Cobalt4 Copper4 Lead4 Manganese4 Molybdenum4 Uranium4 Zinc4 Aluminium Iron Major Ions: (lab) Calcium, Units pH unit pH unit -S/cm mg/L mg/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L -g/L Magnesium, Limit A Limit A Limit Limit Limit B Limit Limit Limit B Limit Limit B Limit Limit B Limit B Limit B Sodium, Bore ID (lower) (upper) Limi A A 2.5 B B TBD B TBD B TBD 34 tB Potassium, GFM-MB- 6.5 8.5 2.5 TBD TBD 3.4 34 Chloride, 25.02 TBD TBD TBD 24 940 TBD TBD 3.4 1900 34 Carbonate and 6.5 8.5 TBD 1.4 TBD 3.4 1900 34 Bicarbonate MC-MB- 6.5 TBD TBD 2.5 24 940 1.4 1.4 3.4 1900 34 25.02 8.5 TBD TBD TBD 24 940 2* TBD 3.4 1900 34 mg/L 6.5 8.5 TBD TBD 3.4 1900 34 Bore 48A TBD TBD TBD 1.4 1.4 3.4 1900 34 TBD TBD
- H35
The mining activity must not cause groundwater measured from any compliance bore specified in Schedule H -Table 11 (Groundwater monitoring locations and frequency) to exceed the corresponding Limit A specified in Schedule H -Table 12 (Groundwater quality limits) on any five (5) consecutive sampling occasions.
- H36
The mining activity must not cause groundwater measured from any compliance bore specified in Schedule H -Table 11 (Groundwater monitoring locations and frequency) to exceed the corresponding Limit B specified in Schedule H -Table 12 (Groundwater quality limits) on any three (3) consecutive sampling occasions.
- H37
This condition was deleted on 5 September 2025.
- H38
The construction, maintenance and decommissioning of groundwater monitoring bores must be undertaken in a manner that: (a) prevents contaminants entering the groundwater; (b) ensures the integrity of the bores to obtain representative groundwater samples from the target aquifer; and (c) maintains the hydrogeological environment within the aquifer.
- H39
A bore drill log must be kept for each groundwater bore (drilled since 1 June 2015) listed in Schedule H - Table 11 (Groundwater monitoring locations and frequency) which includes: (a) bore identification reference and geographic coordinate location; (b) specific construction information including but not limited to depth of bore, depth and length of casing, depth and length of screening and bore sealing details; (c) standing groundwater level (if available); (d) lithological data and stratigraphic interpretation by an appropriately qualified person/s to identify important features associated with groundwater monitoring; and (e) target aquifer and/or stratigraphic formation of the bore.
- H40
Any new groundwater bores installed or existing groundwater bores re-developed must be constructed and maintained in accordance with methods prescribed in Minimum Construction Requirements for Water Bores in Australia - Fourth Edition (or equivalent). Seepage Management
- H41
This condition was deleted on 5 September 2025.
- H42
The environmental authority holder must install, operate and maintain a Seepage Management System to contain seepage and prevent seepage generated from the activity moving beyond the groundwater compliance bores specified in Schedule H - Table 11 (Groundwater monitoring locations and frequency) and in accordance with a Seepage Management Plan.
- H43
The Seepage Management Plan must be developed by an appropriately qualified person/s and assessed as compliant with the seepage management conditions of this environmental authority by 14 November 2024. The Seepage Management Plan must: (a) identify origins of saline and/or metalliferous mine drainage and seepage within the mining lease; (b) describe the conceptual Seepage Management System, and detail how each seepage control forms part of the broader Seepage Management System, including a schematic diagram of interceptions, storages, transfers and disposal facilities; (c) list internally approved, detailed design and as-constructed documentation/drawings reasonably required for an independent technical review and substantiation of the plan; (d) accurately record and include details of internally approved, detailed design and as- constructed seepage controls for the Seepage Management System in a Register of Seepage Controls kept by the holder of this environmental authority; Permit Environmental Authority (e) include all reasonable and practicable measures to effectively capture and contain seepage such that contaminants that will, or have the potential to, cause environmental harm are not released; and (f) include a Seepage Monitoring Program that is designed to detect locations both on and off the mining lease, where seepage may express at the surface, and locations where seepage may not be captured within the Seepage Management System. H44a An appropriately qualified person/s must review the performance of the Seepage Management Plan, including the Seepage Monitoring Program, and submit a Seepage Performance Report to the administering authority by 30 June 2025 and then on an annual basis by 30 June of each year thereafter. H44b The Seepage Performance Reports required by condition H44a must: (a) detail the review method and findings, provide an assessment of the effectiveness of the Seepage Management Plan, and detail and review the findings of the monitoring program designed to detect seepage that may not be captured; (b) include an assessment of the performance of the Seepage Management System as a whole in meeting its intent and continuing to remain as fit for purpose, including information on the status and progress of remediation works; and (c) include documentation reasonably required for an independent technical review and substantiation of the performance. At minimum, this must include for each seepage control: i. the volume and rate of seepage captured, and any changes over time; ii. the quality of the seepage with respect to the quality characteristics listed in Schedule H -Table 12 (Groundwater quality limits) and any changes over time; iii. the source of the seepage, influences on the quality and quantity of seepage generated, and if not well understood, recommended investigations to establish this information; iv. the disposal location for captured seepage; v. an assessment of the performance of each individual seepage control in meeting the design intent and continuing to remain as fit for purpose; and (d) make recommendations for update of the Seepage Management Plan, corresponding timeframes for the update/s and predicted timeframes for groundwater quality recovery in transitional bores under condition H34b to achieve stabilisation.
- H45
The Seepage Management Plan must be updated in accordance with the timeframes recommended in the Seepage Performance Report required by H44(b). Groundwater monitoring H46a By 30 May 2018, a Groundwater Monitoring Program must be developed by appropriately qualified persons. H46b A revised Groundwater Monitoring Program must be developed by an appropriately qualified person/s and provided to the administering authority by 30 September 2024. The intent of the program is to monitor and assess the actual and potential impacts of the mining activity on groundwater.
- H47
The Groundwater Monitoring Program required by Condition H46b must be developed and implemented to: (a) identify all potential sources of contamination to groundwater from the mining activity; (b) identify all environmental values of groundwater that may be impacted by the mining activity; (c) ensure the acquisition of data sufficient to satisfy the requirements of the report under Condition H50; (d) monitor groundwater levels in all identified hydrogeological units present across and adjacent to the site to confirm existing groundwater flow paths; (e) ensure that all potential impacts of groundwater contamination sources and/or level on environmental values due to the activity are identified and monitored; (f) prescribe the groundwater sampling and monitoring methodologies; and (g) ensure that adequate groundwater monitoring is undertaken to achieve the following objectives: i. detect any impacts to groundwater quality due to the activity; Permit Environmental Authority ii. detect any change to groundwater level due to the mining activity; iii. determine trends in groundwater quality including spatially and temporally; iv. determine any interaction or impact from groundwater on surface water; v. monitor the extent of impacts to groundwater quality from any new seepage detected under H43f: and (h) prescribe an appropriate quality assurance and quality control program.
- H48
A report on the River Red Gums must be prepared by an appropriately qualified person and provided to the administering authority by 30 June 2025. The River Red Gum report must include, but not be limited to: a) report identifying the location of in the River Red Gum ecological communities in the vicinity of mining activities; b) a determination of the ecological water requirements and groundwater dependence of the River Red Gums; and c) recommendations for the holder of the environmental authority to ensure protection of the River Red Gums, including any necessary actions or updates to the Groundwater Monitoring Program required by Condition H46b.
- H49
The Groundwater Monitoring Program must be reviewed within one year of 30 June 2024 and then on an annual basis by an appropriately qualified person/s to determine if it continues to meet the requirements stated in Condition H47.
- H50
A Groundwater Monitoring Report must be prepared by an appropriately qualified person(s) and the report submitted to the administering authority by 30 September 2025, and on a three yearly basis thereafter. The Groundwater Monitoring Report must include at minimum: a) an assessment, analysis and interpretation of groundwater quality results from each monitoring event, including time series graphs of all data and an assessment of trends in the groundwater quality and level, based on a graphical comparison with at least the past five (5) years of monitoring data; b) review and validation, including any recommendations for an amendment (or recalibration where required) of the current and relevant conceptual and hydrogeological modelling as it relates to groundwater seepage covered by the seepage management plan using observed groundwater quality and level data; c) the Groundwater Monitoring Program must be amended to reflect any recommendations provided under Condition H50(b) within six (6) months of receipt of the recommendation/s; d) a review and validation or update of the following matters utilising observed groundwater quality data and other relevant information: i. effectiveness of the Mine Water Management System to capture all seepage within the Primary Mining Aquifer; ii. the Mount Isa Fault influence as a hydrological barrier and identification of potential flow pathways through or across the fault; iii. any groundwater connectivity between the George Fisher Mine and Lake Moondara, which must include at a minimum: 1. monitoring groundwater quality between the George Fisher Mine and Lake Moondara; 2. analysis and interpretation of groundwater quality results from each monitoring event, as described in condition H50(a); 3. investigating the source, pathways and extent of potential groundwater contamination between the George Fisher Mine and Lake Moondara; and 4. a review and validation, including any recommendations for an amendment of the current and relevant conceptual and hydrogeological modelling as it relates to groundwater quality monitoring; and 5. if required, include any improvements to the Seepage Management Plan as per condition H50(f) to ensure the intent of condition H33 is achieved. iv. the connection between groundwater and surface waters, even if intermittent, including but not limited to Hazeldene Creek, Leichhardt River, Lake Moondarra, Lena Creek, Spear Creek, Mica Creek, Kennedy Creek and King Gully; Permit Environmental Authority v. the influence of any ephemeral pathway in the form of a shallow hydrogeological unit between key mine landform features and surface water features; vi. additional sources and flow pathways that may explain observed groundwater quality outside the priority source zones identified in the report required by the notice to conduct or commission an environmental evaluation STAT1185 (incl. STAT1033) titled `MIM - Site Wide Groundwater Environmental Evaluation Report', dated 15 April 2021; and vii. a determination of the full extent of groundwater contamination or zone of influence from mining activities (outside the current impacted bores); e) investigation of any potential groundwater quality deterioration, when measured at any bore listed in Schedule H -Table 11 (Groundwater monitoring locations and frequency); f) identify improvements to the Seepage Management Plan; and g) if required, recommended updates of this environmental authority through an amendment application pursuant to the Environmental Protection Act 1994, to ensure the intent of the groundwater monitoring program as outlined in Condition H47 is achieved. END OF CONDITIONS FOR SCHEDULE H
- I1
The operation of the sewage treatment systems must be carried out by a person(s) with appropriate experience and/or qualifications to ensure the effective operation of that treatment system. Disposal of Sewage Effluent
- I2
Subject to conditions I11 and I12, treated sewage effluent must only be released to the effluent release locations identified in Schedule I - Table 1 (Sewage Effluent Release Points) and Schedule K - Figure 20 (Sewage Effluent Release Points - Mount Isa Area) and Schedule K - Figures 21 (Sewage Effluent Release Points - George Fisher Mine Area). Schedule I - Table 1 (Sewage Effluent Release Points) Treatment Effluent Release Effluent Disposal Coordinates Effluent Plant Location Method Quality (GDA94 MGA Zone 54) Type4 Easting Northing 1 Mount Isa Golf Club Irrigation Irish Club Oval Irrigation 342184 7704020 1 1 Rosehill Pony Club Irrigation 1 Evaporation 1 Rosehill STP evaporation Evaporation 3418822 77051062 pond (Lake Tahoe) 2 Blow Down Line to slag 2 dams N/A3 George Fisher Small sewage package Absorption Bed or 341184 7725386 N/A3 Mine including system Irrigation 341165 7725601 offices, 341039 7725601 workshop and Designated disposal area 340970 7725586 underground - minimum area of 6.2Ha1 340936 7725361 341112 7725301 341206 7725322 Zinc Barracks Small sewage package Absorption Bed or 341730 7724800 system and Worm farm Irrigation 341939 7724758 waste system 341927 7724825 341730 7724723 Designated disposal area - minimum area of 1.5Ha1 GF Engineering Septic system Absorption trench 341789 7725476 GF Southern Septic System Absorption trench 341942 7725475 Cross workshop GF Absorption Trench N/A3 Warehouse/Eng Septic System Absorption trench ineering 341959 7725179 HHOC Offices Septic system 341283 7723744 N/A3 Permit Environmental Authority Treatment Effluent Release Effluent Disposal Coordinates Effluent Plant Location Method Quality (GDA94 MGA Zone 54) Type4
- TD5
mining Septic System Absorption trench 339650 7707517 N/A3 area
- I3
For the Treatment Plants with effluent quality type 1 or 2 identified in Schedule I - Table 1 (Sewage Effluent Release Points), sewage effluent must be monitored at the relevant Treatment Plant identified in Schedule I - Table 1 (Sewage Effluent Release Points) for the quality characteristics and at the frequency detailed in Schedule I - Table 2 (for the Treatment Plants with effluent quality type 1) or Table 3 (for the Treatment Plants with effluent quality type 2).
- I4
Sewage effluent from the relevant Treatment Plants with effluent quality type 1 or 2 identified in Schedule I - Table 1 (Sewage Effluent Release Points) must not exceed the release limits specified in Schedule I - Table 2 (for the Treatment Plants with effluent quality type 1) or Table 3 (for the Treatment Plants with effluent quality type 2).
- I5
If a response value as specified in Schedule I - Table 2 (Effluent Release Limits - Effluent Quality Type 1) is exceeded, another sample must be immediately taken. If this sample exceeds the response value again, the effluent disposal method of irrigation must be suspended, until a subsequent sample shows that the effluent quality has returned to below the response value. Permit Environmental Authority Schedule I - Table 2 (Effluent Release Limits - Effluent Quality Type 1) - Trickling Filter Plant Quality Characteristics Median Response Maximum Frequency Release value Release Limit 5-day Biochemical Oxygen 30 Monthly Demand (mg/L) Limit1 45 45 Monthly Suspended Solids (mg/L) 30 Monthly Total Nitrogen (mg/L) 20 60 Monthly Total Phosphorus (mg/L) 1500 40 Weekly pH (pH unit)2 30 15 Weekly Electrical conductivity (S/cm)2 30 6 - 8.5 (range) Daily2 Free Residual Chlorine (mg/L) 1600 Weekly 2 2 E coli (CFU/100mL) 1000 4000 1 The median value must be based on 12 consecutive samples. 2 May be measured on site using a basic test kit. Schedule I - Table 3 (Effluent Release Limits - Effluent Quality Type 2) - Small Package Plants (<1000EP) Quality characteristics Release Limit - Maximum Frequency 5-day Biochemical Oxygen 20 Monthly Demand (mg/L) Suspended Solids (mg/L) 30 Monthly Total Nitrogen (mg/L) 30 Monthly Total Phosphorus (mg/L) 15 Monthly pH (pH unit)1 6 - 8.5 (range) Fortnightly Electrical conductivity (S/cm)1 1600 Fortnightly Free Residual Chlorine (mg/L) 1 0.7 Weekly1 E coli (CFU/100mL) 1000 Monthly 1 May be measured on site using a basic test kit. Release to land
- I6
Subject to conditions I11 and I12, the total quantity of treated effluent released to land via the effluent release locations listed in Schedule I - Table 1 (Sewage Effluent Release Points) must not exceed the respective quantities stated in Schedule I - Table 7 (Maximum Release Quantities). Permit Environmental Authority Schedule I - Table 7 (Maximum Release Quantities) Maximum Daily Release Quantity Sewage Treatment Plant 1.2 ML 130 KL Rosehill 100 KL George Fisher Mine including offices, workshop and underground 20 KL Zinc Barracks 5 KL GF Engineering 10KL GF Southern Cross workshop 5 KL GF Warehouse/Engineering 5 KL HHOC Offices 6 KL HHOC Haulage 12 KL Zinc Surface Crushing (ISA) (Pac rim) 5 KL BSOC 1 (Offices) 40KL BSOC 2 (Hot seat) 3 KL Clean in Clean Out (May Downs Rd) 5 KL Heavy Medium Plant 5 KL George Fisher Mine Expansion Crusher 5 KL Piping Workshop (HMP) 5 KL
- TD5
Mining Area LE72 Land Disposal Management
- I7
Subject to conditions I11 and I12, in all designated irrigation areas, the irrigation of treated effluent to land must be carried out in a manner such that: (a) vegetation is not damaged; (b) soil erosion and soil structure damage is avoided; (c) there is no surface ponding or runoff of effluent; (d) percolation of effluent beyond the plant root zone is minimised; (e) the capacity of the land to assimilate nitrogen, phosphorous, salts, organic matter as measured by oxygen demand and water is not exceeded; (f) the quality of ground water is not adversely affected; (g) sodicity in the soil is controlled; (h) the build-up of nutrient and heavy metals in the soil and subsoil from effluent and other sources is controlled.
- I8
If areas irrigated with effluent are accessible to employees or the general public, prominent signage must be provided advising that effluent is present and care should be taken to avoid consuming or otherwise coming into unprotected contact with the effluent.
- I9
The holder of this environmental authority must take all reasonable measures to ensure that persons are not exposed to pathogens in treated sewage effluent released to land. Permit Environmental Authority Irrigation Monitoring Program
- I10
The holder of this Environmental Authority must develop, implement and maintain an irrigation monitoring program (IMP) to evaluate the impacts of the release of contaminants to land(s) from the Rose Hill sewage treatment plant to: (a) groundwater (including but not limited to sub-surface groundwater); (b) soils and sub soils; and (c) vegetation and nutrient export. Wet Weather Release
- I11
The holder of this environmental authority is authorised to release treated sewage effluent from the relevant release points specified in Schedule I - Table 8 (Treated Effluent Release Points) during a wet weather event if the treated sewage effluent complies with the relevant release limits specified in Schedule I - Table 8.
- I12
During wet weather, treated sewage effluent may also be disposed of to the containment systems for the surface water containment areas shown in Schedule K - Figure 4 (TSF Containment Area), Schedule K - Figure 5 (Mount Isa East Containment Area) and Schedule K - Figure 6 (GFM / HHOC Containment Area). Schedule I - Table 8 (Treated Effluent Release Points) Release Point Coordinates Release Limits (GDA94 MGA Zone 54) Release limits specified in Schedule I - Table 2 Easting Northing Release limits specified in Rosehill STP evaporation pond 341862 7705121 Schedule I - Table 3 (Lake Tahoe) Zinc Barracks 341969 7724812
- I13
All ponds used for the storage or treatment of treated effluent must be constructed, installed and maintained so as to ensure the stability of the ponds' construction. Provision of Treated Effluent to Other Persons
- I14
If responsibility of the treated effluent is given or transferred to another person: (a) the responsibility of such effluent must only be given or transferred in accordance with a written agreement (the third party agreement); (b) include in the third party agreement a commitment from the person utilising the effluent to use effluent in such a way as to prevent environmental harm or public health incidences and specifically make the persons aware of the General Environmental Duty (GED) under section 319 of the Environmental Protection Act 1994, environmental sustainability of any effluent disposal and protection of environmental values of waters; (c) upon being notified or otherwise becoming aware that the person's use of effluent is causing or threatens to cause environmental harm or is posing a human health risk, and if the person does not rectify the situation upon written request, the giving and transferring responsibility for such effluent must cease.
- I15
Condition I14 does not apply until 12 months after the commencement of this environmental authority. Sewage Pump Stations
- I16
By 1 January 2013, the sewage pumping stations associated with the Rosehill Treatment Plant and the Zinc Barracks Treatment Plant must be fitted with stand-by pumps and pump-failure alarms as well as high level alarms to warn of imminent pump station overflow.
- I17
All duty and stand-by pumps must be inspected, tested and maintained on a regular basis to ensure they remain in a constant state of service. Permit Environmental Authority
- I18
Any new sewage pump station installed by the holder of this environmental authority must be designed taking into consideration sewage overflows and overflow control structures which incorporate: (a) installation of basins to isolate and contain sewage pump station overflows and for such contained overflow to be returned back into the sewerage treatment system; (b) locating the overflow points and control structures, as far as reasonably practicable away from environmentally sensitive locations including waterways and natural wetlands; (c) stand-by pumps and pump-failure alarms as well as high level alarms to warn of imminent pump station overflow. Sludge, Screening and Grit
- I19
Sludge, screenings and grit generated by the sewage treatment process must not be: (a) disposed of on site at locations other than the site's authorised landfill; or (b) stored on site for any period of time longer than that necessary to dewater the sludge, screenings and grit and prepare it for transport to and disposal. Note: (i) This condition does not apply to sludge stored in the short term and used for the carrying out of trials into recycling or reprocessing of the sludge for beneficial reuse, however sludge reuse must not be trialled on any area that has undergone, is currently undergoing or is to undergo effluent irrigation. (ii) Storage of sludge onsite until a full skip bin load is obtained is considered to be storage necessary to prepare sludge for transport for disposal. (iii) This condition does not apply to the long term storage of sludge in combination with other organic matter for use in rehabilitation / closure activities. Septic systems
- I20
All new septic systems and worm farms must be designed, operated and maintained in accordance with the relevant Australian Standard.
- I21
The holder of this environmental authority is authorised to continue to operate the existing septic systems without upgrade or replacement of the existing septic systems to the current relevant Australian Standard.
- I22
Septic systems and worm farms must be operated and maintained in accordance with the relevant Australian Standard.
- I23
Dewatered cake generated from the Rosehilll sewage treatment plant must not exceed the disposal limits specified in Schedule I - Table 9 (Dewatered Cake Disposal Limits). Schedule I - Table 9 (Dewatered Cake Disposal Limits) Dewatered Cake Monthly Median disposal limit1 Monthly Maximum Disposal Limit 154 Rosehill Dewatered cake (m3) 60 1 The median value must be based on the last 12 consecutive months END OF CONDITIONS FOR SCHEDULE I Permit Environmental Authority Schedule J - Definitions Key terms and/or phrases used in this document are defined in this section. Where a term is not defined, the definition in the Environmental Protection Act 1994, its regulations or environmental protection policies must be used. If a word remains undefined it has its ordinary meaning. Interpretation - Word definitions "acceptance criteria" means the measures by which the actions implemented to rehabilitate the land are deemed to be complete (same as completion criteria). The acceptance criteria indicate the success of the decommissioning and rehabilitation outcomes or remediation of areas which have been significantly disturbed by the environmentally relevant activities. Acceptance criteria may include information regarding: (a) stability of final land forms in terms of settlement, erosion, weathering, ponding and drainage; (b) control of geochemical and contaminant transport processes; (c) quality of runoff waters and potential impact on receiving environment; (d) vegetation establishment, survival and succession; (e) vegetation productivity, sustained growth and structure development; (f) fauna colonisation and habitat development; (g) ecosystem processes such as soil development and nutrient cycling, and the re-colonisation of specific fauna groups such as collembola, mites and termites which are involved in these processes; (h) microbiological studies including recolonisation by mycorrhizal fungi, microbial biomass and respiration; (i) effects of various establishment treatments such as deep ripping, topsoil handling, seeding and fertiliser application on vegetation growth and development; (j) resilience of vegetation to disease, insect attack, drought and fire; (k) vegetation water use and effects on ground water levels and catchment yields. "active waste disposal cell" means a cell currently being used for the disposal of wastes accepted under a condition of this environmental authority and includes all or part of a disposal cell. "AEP" means the annual exceedance probability which is the probability that at least one event in excess of a particular magnitude will occur in any given year. "appropriately qualified person" means a person who has professional qualifications, training, skills or experience relevant to the nominated subject matter and can give authoritative assessment, advice and analysis on performance relative to the subject matter using the relevant protocols, standards, methods or literature. "Approved TEP" means a Transitional Environmental Program approved or taken to be approved by the administering authority.
- X41
South Dam Assessment AEP (ML) (ML) 342177 7707309 341818 7705354 14.31 5.13 341967 7705354 0.01 Yes Significant 2.0 6.3 AND AND 341967 7705246 pumps not pumps not (1:100) operational operational 341818 7705246 Permit Environmental Authority Appendix 1 - Table 2 (Regulated Dams in GFM/ HHOC Containment Area) Name of Regulated Coordinates Terminal Consequence Max Maximum MRL MRL Spillway Dam (GDA94 MGA Zone 54) Dam Category Surface volume (ML) Capacity Easting Northing Area (ha) (relating to (physical BLOB Sediment Dam Assessment ESS) marker) AEP GF Tailings Dam Sediment Dam 3 340060 7726705 10.01 15.46 Sediment Dam 6 340226 7726705 AND AND 0.01 Yes Significant 1.2 17.4 340226 7726597 pumps not pumps not (1:100) 340060 7726597 operational operational Refer to Refer to 0.00001 Schedule K Schedule K No High 56.1 2,662 N/A N/A (1:100,00 - Figure 24 - Figure 24 0) 341120 7724492 52.78 270.70 341443 7724492 AND AND Yes Significant 5.6 276 N/A 341443 7724042 pumps not pumps not 341120 7724042 operational operational 341335 7723621 9.31 5.48 341422 7723601 AND AND Yes High 0.45 11.5 N/A