EPML00720413 · Callide Coal Mine

All reasonable and practicable measures must be taken to prevent or minimise environmental harm caused by the activities authorised by this environmental authority.

The activities conducted under this environmental authority on the Boundary Hill South Mining Area (ML80186) must not exceed the disturbance footprint in Appendix 2, Figure 1 - Callide Mine Boundary Hill South authorised disturbance footprint.

Mining activities must not be carried out in the Mount Murchison Nature Refuge (Protected Area Plan number PA 1111) as shown in Appendix 2, Figure 3 - Mount Murchison Nature Refuge, except for activities necessary to comply with the conditions of the mining lease, environmental authority, or other legislative obligations, such as managing tracks, fences, firebreaks, and communication infrastructure.

The holder of this environmental authority is authorised to extract five (5) million tonnes per annum (Mtpa) of run-of-mine (ROM) coal from ML80186 (Boundary Hill South Mining Area). Permit Environmental authority EPML00720413 - Callide Coal Mine

Maintenance of measures, plant and equipment The holder of this environmental authority 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; and (d) ensure all instruments and devices used for the measurement or monitoring of any parameter under any condition of this environmental authority are properly calibrated.

Monitoring Except where specified otherwise in another condition of this environmental authority, all monitoring records or reports required by this environmental authority must be kept for a period of not less than five (5) years.

Management plans and reports All management plans and reports required under any condition of this environmental authority must be developed by an appropriately qualified person(s).

Upon request from the administering authority, copies of monitoring results, records, registers, management plans, reports, and spatial information required by the conditions of this environmental authority must unless otherwise specified be made available and provided to the administering authority within fourteen (14) days.

Notification of emergencies, incidents and exceptions The holder of this environmental authority must notify the administering authority by written notification within twenty-four (24) hours, after becoming aware of any emergency or 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.

Within ten (10) business days following the notification in accordance with condition A9, 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 emergency or incident. Permit Environmental authority EPML00720413 - Callide Coal Mine

Complaints The holder of this environmental authority must record all environmental complaints received about the mining activities including: (a) name, address and contact number of the complainant; (b) time and date of complaint; (c) reasons for the complaint; (d) investigations undertaken; (e) conclusions formed; (f) actions taken to resolve the complaint; (g) any abatement measures implemented; and (h) person responsible for resolving the complaint.

The holder of this environmental authority must, when requested by the administering authority and within a reasonable timeframe nominated or agreed to by the administering authority: (a) investigate any complaint of environmental harm; (b) undertake the relevant specified monitoring; and (c) within ten (10) business days of completion of the investigation, or no later than ten (10) business days after the end of the timeframe nominated by the administering authority to undertake the investigation, provide to the administering authority the results of the investigation (including an analysis and interpretation of the monitoring results) and abatement measures, where implemented.

Where a condition of this environmental authority requires compliance with a standard, policy or guideline published externally to this environmental authority and the standard is amended or changed subsequent to the issue of this environmental authority, the holder of this environmental authority must: (a) comply with the amended or changed standard, policy or guideline within two (2) years of the amendment or change being made, unless a different period is specified in the amended standard or relevant legislation, or where the amendment or change relates specifically to regulated structures referred to in condition G33, the time specified in that condition; and (b) until compliance with the amended or changed standard, policy or guideline is achieved, continue to remain in compliance with the corresponding provision that was current immediately prior to the relevant amendment or change.

Risk management The holder of this environmental authority must develop and implement a risk management system for mining activities which mirrors the content requirement of the Standard for Risk Management (ISO31000:2018), or the latest edition of an Australian standard for risk management, to the extent relevant to environmental management. Permit Environmental authority EPML00720413 - Callide Coal Mine

Third-party reporting The holder of this environmental authority must: (a) within one (1) year of the commencement of this environmental authority, obtain from an appropriately qualified person a report on compliance with the conditions of this environmental authority; (b) obtain further such reports at regular intervals, not exceeding three-yearly intervals, from the completion of the report referred to above; and (c) provide each report to the administering authority within ninety (90) days of its completion.

Storage and handling of flammable and combustible liquids All flammable and combustible liquids must be stored and handled in accordance with the most recent version of AS1940 - The Storage and Handling of Flammable and Combustible Liquids.

All hazardous chemicals must be stored and handled in accordance with the relevant Australian Standards, including AS4326 - The Storage and Handling of Oxidising Agents.

Any spillage of chemicals or flammable or combustible liquids must be cleaned up in accordance with the AS1940 or the relevant Australian Standard.

The Trap Gully Bulk Storage Facility permitted to be carried out under this environmental authority on ML5662 must not exceed the disturbance footprint in Appendix 2, Figure 4 - Callide Mine - Trap Gully Bulk Storage Facility footprint. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule B - Air Condition Condition number

Dust and particulate matter monitoring The environmental authority holder must ensure that all reasonable and feasible avoidance and mitigation measures are employed so that the dust and particulate matter emissions generated by the mining activities do not cause exceedances of the following levels when measured at any sensitive or commercial place: (a) Dust deposition of 120 milligrams per square metre per day, averaged over one (1) month, when monitored in accordance with the most recent version of Australian Standard AS3580.10.1 Methods for sampling and analysis of ambient air--Determination of particulate matter--Deposited matter - Gravimetric method. (b) A concentration of particulate matter with an aerodynamic diameter of less than 10 micrometres (PM10) suspended in the atmosphere of 50 micrograms per cubic metre over a twenty-four (24)-hour averaging time when monitored in accordance with the most recent version of either: (i) Australian Standard AS3580.9.9 Methods for sampling and analysis of ambient air-- Determination of suspended particulate matter--PM10 low volume sampler--Gravimetric method; or (ii) Any alternative method of monitoring PM10 which may be permitted by the 'Air Quality Sampling Manual' as published from time to time by the administering authority. (c) A concentration of particulate matter suspended in the atmosphere of 90 micrograms per cubic metre over a one (1) year averaging time, when monitored in accordance with the most recent version of AS/NZS3580.9.3:2003 Methods for sampling and analysis of ambient air-- Determination of suspended particulate matter--Total suspended particulate matter (TSP)-- High volume sampler gravimetric method.

If the dust deposition monitoring undertaken as per condition B1(a) indicates an exceedance of the relevant limits, and a complaint is received from any sensitive or commercial place within thirty-one (31) days prior to the exceedance being recorded or within thirty-one (31 days) after the exceedance being recorded, the environmental authority holder must within ninety (90) days of receiving the monitoring results indicating the exceedance, complete an investigation into the exceedance, and submit to the administering authority a report detailing the investigation undertaken. The report must: (a) provide details of the investigation; and (b) detail whether the result is directly associated with mining activities and if so; (i) any dust abatement measures implemented; (ii) whether any environmental harm has occurred; and (iii) outline any actions required to mitigate environmental harm. Permit Environmental authority EPML00720413 - Callide Coal Mine

If the particulate matter monitoring undertaken as per condition B1(b) and B1(c) indicates an exceedance of the relevant limits, the environmental authority holder must within ninety (90) days of receiving the monitoring results indicating the exceedance, complete an investigation into the exceedance, and submit to the administering authority a report detailing the investigation undertaken. The report must: (a) provide details of the investigation; and (b) detail whether the result is directly associated with mining activities and if so; (i) any dust abatement measures implemented; (ii) whether any environmental harm has occurred; and (iii) outline any actions required to mitigate environmental harm.

The results of dust deposition and particulate matter monitoring undertaken as per condition B1 must be made available upon request by the administering authority. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule C - Surface Water Condition Condition number

Contaminant Release Contaminants that will or have the potential to cause environmental harm must not be released directly or indirectly to any waters as a result of the mining activities, except as permitted under the conditions of this environmental authority.

Unless otherwise permitted under the conditions of this environmental authority, the release of mine affected water to waters must only occur from the release points specified in Table C1 - Mine affected water release points, sources and receiving waters.

The release of mine affected water to internal water management infrastructure that is installed and operated in accordance with a water management plan that complies with condition C25 is permitted. Table C1 - Mine affected water release points, sources and receiving waters Release Latitude Longitude Mine Affected Monitoring Point Receiving Point (GDA94) (GDA94) Water Source and waters (RP) Location description RP1 RP1a -24.3293 150.6269 Dunn Creek Dam Dam Spillway Dunn Creek spillway overflow RP1b -24.2638 150.6208 Turkey's Nest Flow: End of pipe flow Oaky Creek

The release of mine affected water to waters in accordance with condition C2 must not exceed the release limits stated in Table - C2 Mine affected water release limits (Dunn Creek Dam) and Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) when measured at the monitoring points specified in Table C1 - Mine affected water release points, sources and receiving waters for each quality characteristic. Table C2 - Mine affected water release limits (Dunn Creek Dam) Quality Characteristic Release Limits Monitoring frequency Electrical conductivity (-S/cm) 1,400 pH (pH Unit) 6.5 (minimum), 9.0 (maximum) Daily during release (the first sample Suspended Solids (mg/L) 200 must be taken within 2 hours of Sulfate (mg/L) commencement of release) 400 Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) Quality Characteristic Release Limits Monitoring frequency Electrical conductivity ( 1800 maximum S/cm) pH (pH Unit) 6.5 (minimum), 9.0 (maximum) Daily during release (the first sample Suspended Solids (mg/L) must be taken within 2 hours of commencement of release) 1,000 Sulfate (mg/L) 520 Permit Environmental authority EPML00720413 - Callide Coal Mine

The release of mine affected water to waters from the release points must be monitored at the locations specified in Table C1 - Mine affected water release points, sources and receiving waters for each quality characteristic and at the frequency specified in Table C2 - Mine affected water release limits (Dunn Creek Dam), Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) and Table C4 - Release contaminant trigger investigation levels - potential contaminants. Note: the administering authority will take into consideration any extenuating circumstances prior to determining an appropriate enforcement response in the event condition C5 is contravened due to a temporary lack of safe or practical access. The administering authority expects the environmental authority holder to take all reasonable and practicable measures to maintain safe and practical access to designated monitoring locations.

All analysis and tests for water quality that are required under this environmental authority must be performed by a laboratory that has National Association of Testing Authorities' certification for such analysis and tests. The only exception to this condition is for the monitoring of pH, electrical conductivity, dissolved oxygen, temperature and turbidity in-situ. Permit Environmental authority EPML00720413 - Callide Coal Mine Table C4 - Release contaminant trigger investigation levels - potential contaminants Quality Trigger Levels Comment on Trigger Level Monitoring Characteristic (-g/L) Frequency Aluminium Cadmium 55 For aquatic ecosystem protection, based on SMD guideline Chromium Copper 0.2 For aquatic ecosystem protection, based on SMD guideline 1 For aquatic ecosystem protection, based on SMD guideline 2 For aquatic ecosystem protection, based on LOR for ICPMS Iron 300 For aquatic ecosystem protection, based on low reliability guideline Lead 4 Mercury 0.2 For aquatic ecosystem protection, based on SMD guideline Nickel 11 Zinc 8 For aquatic ecosystem protection, based on LOR for CV FIMS Boron 370 For aquatic ecosystem protection, based on SMD guideline Cobalt 1.4 For aquatic ecosystem protection, based on SMD guideline Manganese 1,900 Molybdenum 34 For aquatic ecosystem protection, based on SMD guideline Commencement of Selenium 10 For aquatic ecosystem protection, based on low reliability release and Silver 1 guideline thereafter weekly Uranium 1 For aquatic ecosystem protection, based on SMD guideline during release Vanadium 10 Ammonia 900 For aquatic ecosystem protection, based on SMD guideline For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on SMD guideline Nitrate 1,100 For aquatic ecosystem protection, based on ambient Qld WQ Guidelines (2006) for TN Fluoride (Total) 2,000 Protection of livestock and short-term irrigation guideline Sodium 180,000 Australian Drinking Water Guidelines (2004)

If quality characteristics of the release exceed any of the trigger levels specified in Table C4 - Release contaminant trigger investigation levels - potential contaminants during a release event, the environmental authority holder must compare the downstream results in the receiving waters to the trigger values specified in Table C4 - Release contaminant trigger investigation levels - potential contaminants and: (a) where the trigger values are not exceeded then no action is to be taken; or where the downstream results exceed the trigger values specified for any quality characteristic, compare the results of the downstream site to the data from background monitoring sites and: (i) if the result is less than the background monitoring site data, then no action is to be taken; or (ii) if the result is greater than the background monitoring site data, complete an investigation into the potential for environmental harm and provide a written report to the administering authority in the next annual return, outlining: 1. details of the investigations carried out; and 2. actions taken to prevent environmental harm. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with C7(2)(b) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic.

If an exceedance in accordance with condition C7(a)(ii) is identified, the environmental authority holder must notify the administering authority within fourteen (14) days of receiving the result.

Mine affected water release events The environmental authority holder must ensure a stream flow gauging station/s is installed, operated and maintained to determine and record stream flows at the locations and flow recording frequency specified in Table C5 - Mine affected water release during flow events.

Notwithstanding any other condition of this environmental authority, the release of mine affected water to waters in accordance with condition C2 must only take place during periods of natural flow events in accordance with the receiving water flow criteria for discharge specified in Table C5 - Mine affected water release during flow events for the release points specified in Table C1 - Mine affected water release points, sources and receiving waters.

The 80th percentile of electrical conductivity (EC) values recorded at the downstream monitoring points listed in Table C6 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam) and Table C7 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam) must not exceed 1600-S/cm over the duration of the release influence period. The 80th percentile must be calculated using all EC values recorded by the monitoring station during the release influence period. Note: The release influence period is the period during which the downstream monitoring points are influenced by mine affected water from Callide Mine and includes both the duration of release and any lag time between release points and downstream monitoring points. Permit Environmental authority EPML00720413 - Callide Coal Mine Table C5 - Mine affected water release during flow events Minimum Receiving Release Point Gauging Gauging Gauging Flow in Flow water/stream station Station Station Receiving recording Latitude Longitude Water Frequency (GDA94) (GDA94) Required for a Release Eventa Dunn Creek Dunn Creek Dam Callide Dam -24.32305 150.68501 1.5 m3/s (RP1) headwaters Turkey's Nest Goovigen - 24.1065 150.2872 Both: Storage (RP1a) Gauging 150.5961 3 m3/s Both: Callide and Trap Gully Station 150.2872 Creek And Pipeline (RP1b) (GS4) 150.5326 And Oaky Creek 0.1 m3/s Ghost Ryder's Oaky Creek - 24.2617 Both: Callide Storage (RP2) Downstream Both: Creek (GS1) 3 m3/s And Oaky Creek Goovigen - 24.1065 And Continuous Gauging 0.1 m3/s (minimum Station daily) (GS4) Oaky Creek - 24.2952 Trap Gully Confluence (GS2) Callide Creek Lake Gasteen Goovigen - 24.1065 150.2872 3 m3/s Dam (RP3) Gauging Station

The daily quantity of mine affected water released from each release point must be measured and recorded at the monitoring points in Table C1 - Mine affected water release points, sources and receiving waters.

Releases to waters must be undertaken so as not to cause erosion of the bed and banks of the receiving waters or cause a material build-up of sediment in such waters. Permit Environmental authority EPML00720413 - Callide Coal Mine

Notification of Release Event The environmental authority holder must notify the administering authority via WaTERS within twenty-four (24) hours after commencing to release mine affected water to the receiving environment. Notification must include the submission of written advice to the administering authority of the following information: (a) release commencement date/time; (b) release point/s; (c) release rate; (d) release volume (estimated); (e) receiving water/s including the natural flow rate in the receiving water(s); and (f) any details (including available data) regarding likely impacts on the receiving water(s).

The environmental authority holder must notify the administering authority via WaTERS within twenty-four (24) hours after the cessation of a release event notified under condition C14. Notification must include the submission of written advice to the administering authority of the following information: (a) release cessation date and time; (b) natural flow volume in receiving water; and (c) volume of water released. Note: Successive or intermittent releases occurring within twenty-four (24) hours of the cessation of any individual release can be considered part of a single release event and do not require individual notification for the purpose of compliance with conditions C14, C15 and C16, provided the relevant details of the release are included within the notification provided in accordance with conditions C14, C15 and C16.

Within twenty-eight (28) days of notification under condition C15, provide the administering authority via WaTERS the following information: (a) confirmation of: (i) the release commencement date and time; (ii) the release cessation date and time; (iii) receiving water(s) including the natural flow rate; and (iv) volume of water released; (b) all in-situ and laboratory water quality monitoring results; (c) details regarding the compliance of the release with the conditions in Schedule C: Surface Water of this environmental authority; (d) whether the release of water resulted in any impacts to the receiving environment; and (e) any other matter(s) pertinent to the water release event. Permit Environmental authority EPML00720413 - Callide Coal Mine

Notification of release event exceedance If the release limits defined in Table C2 - Contaminant release limits (Dunn Creek Dam) and Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) are exceeded, the holder of the environmental authority must notify the administering authority within twenty-four (24) hours of receiving the results.

The environmental authority holder must, within twenty-eight (28) days of a release that is not compliant with the conditions of this environmental authority, provide a report to the administering authority detailing: (a) the reason for the release; (b) the location of the release; (c) the total volume of the release and which (if any) part of this volume was non-compliant; (d) the total duration of the release and which (if any) part of this period was non-compliant; (e) all water quality monitoring results (including all laboratory analyses); (f) identification of any environmental harm as a result of the non-compliance; (g) all calculations; and (h) any other matters pertinent to the water release event.

Receiving environment monitoring and contaminant trigger levels The quality of the receiving waters must be monitored for each quality characteristic and at the monitoring locations specified in Table C6 - Receiving waters contaminant trigger levels at the locations specified in: (a) Table C7 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam); and (b) Table C8 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam). Permit Environmental authority EPML00720413 - Callide Coal Mine Table C6 - Receiving waters contaminant trigger levels Quality Characteristic Trigger Level Monitoring Frequency pH 6.5 - 8.0 Electrical Conductivity (-S/cm) 80th Percentile: 1,600, Maximum: 1,920 Suspended solids (mg/L) 1,000 Daily during the release Sulfate (mg/L) 250 (Protection of drinking water Environmental Value) Sodium (mg/L) 180 (Australian Drinking Water Guidelines, 2004) Table C7 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam) Monitoring Points Receiving Waters Latitude (GDA94) Longitude (GDA94) Location Description Upstream Background Monitoring Point Dunn Creek Dam Callide Dam headwaters - 24.3224 150.66994 Downstream Background Monitoring Point Dunn Creek Dam Callide Dam - 24.3693 150.6143 Note: The data from background monitoring points must not be used where they are affected by releases from other mines. Permit Environmental authority EPML00720413 - Callide Coal Mine Table C8 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam) Monitoring Points Receiving Waters Latitude Longitude Location Description (GDA94) (GDA94)

NRM Goovigen Gauging - 24.1054 150.2866 Station on Callide Creek

Callide Creek Main - 24.2649 150.4132 Channel -Electrical Conductivity Gauge

Callide Creek old Channel - 24.2581 150.4263 -Electrical Conductivity Gauge Monitoring Point 6 Kroombit Creek at - 24.2394 150.3872 McCann's Road Crossing Notes: a) The upstream monitoring point should be within 15km of the release point. b) The downstream point should not be greater than 15km from the release point. c) The data from background monitoring points must not be used where they are affected by releases from other mines. Permit Environmental authority EPML00720413 - Callide Coal Mine

If quality characteristics of the receiving water at the downstream monitoring points exceed any of the trigger levels specified in Table C6 - Receiving waters contaminant trigger levels during a release event, the environmental authority holder must compare the downstream results to the upstream results in the receiving waters and: (a) where the downstream result is the same or a lower value than the upstream value for the quality characteristic then no action is to be taken; or (b) where the downstream results exceed the upstream results, complete an investigation into the potential for environmental harm and provide a written report to the administering authority in the next annual return, outlining: (i) details of the investigations carried out; and (ii) actions taken to prevent environmental harm. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with condition F20(b)(ii) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic.

Receiving Environment Monitoring Program (REMP) The environmental authority holder must develop and implement a Receiving Environment Monitoring Program (REMP) to monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised mining activity. This must include monitoring the effects of the mine on the receiving environment periodically (under natural flow conditions) and while mine affected water is being discharged from the site. For the purposes of the REMP, the receiving environment is the waters as described in Table C7 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam) and Table C8 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam) and connected waterways within 8.3km downstream of the Dunn Creek Dam release, and additionally the Callide Creek and Oaky Creek 15km downstream of the respective releases and connected or surrounding waterways within the Callide Catchment (15km) downstream of the release. The REMP should encompass any sensitive receiving waters or environmental values downstream of the authorised mining activity that will potentially be directly affected by an authorised release of mine affected water.

A report outlining the findings of the REMP, including all monitoring results and interpretations must be prepared annually. This must include: (a) an assessment of background reference water quality; (b) the condition of downstream water quality compared against water quality objectives; and (c) the suitability of current discharge limits to protect downstream environmental values.

Water reuse Mine affected water may be piped or trucked or transferred by some other means that does not contravene the conditions of this environmental authority and deposited into artificial water storage structures, such as farm dams or tanks, or used directly at properties owned by the environmental authority holder or a third party (with the consent of the third party). Permit Environmental authority EPML00720413 - Callide Coal Mine

Annual water monitoring reporting The following information must be recorded in relation to all water monitoring required under the conditions of this environmental authority and submitted to the administering authority in the specified format with each annual return: (a) the date on which the sample was taken; (b) the time at which the sample was taken; (c) the monitoring point at which the sample was taken; (d) the measured or estimated daily quantity of mine affected water released from all release points; (e) the release flow rate at the time of sampling for each release point; and (f) the results of all monitoring and details of any exceedances of the conditions of this environmental authority.

Water management plan A Water Management Plan must be developed by an appropriately qualified person and implemented.

Stormwater and water sediment controls An Erosion and Sediment Control Plan must be developed by an appropriately qualified person and implemented for all stages of the mining activities and must demonstrate how erosion and sediment control measures adequately minimise: (a) erosion; (b) the release of sediment to receiving waters; and (c) contamination of stormwater.

Stormwater, other than mine affected water, is permitted to be released to waters from: (a) erosion and sediment control structures that are installed and operated in accordance with the Erosion and Sediment Control Plan required by condition C26; and (b) water management infrastructure that is installed and operated, in accordance with a Water Management Plan for the purpose of ensuring water does not become mine affected water. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule D - Groundwater Condition Condition number

The holder of this environmental authority must not release contaminants to groundwater.

Monitoring and reporting Groundwater quality must be monitored at the locations and frequencies defined in Table D1 - Groundwater monitoring locations and frequency and shown in Appendix 2, Figure 5 - Groundwater bore monitoring network for the parameters identified in Table D2 - Groundwater quality triggers.

Groundwater levels must be monitored at the locations and frequencies defined in Table D1 - Groundwater monitoring locations and frequency and shown in Appendix 2, Figure 5 - Groundwater bore monitoring network.

Groundwater quality triggers must be amended to replace all TBA values with appropriate values once at least eight (8) representative measurements are available for bores MB06, MB20 and MB25. Appropriate values must be determined in accordance with the latest edition of the administering authority's guideline `Using monitoring data to assess groundwater quality and potential environmental impacts'.

The method of sampling of surface and groundwater must comply with that set out in the latest edition of the administering authority's Monitoring and Sampling Manual. Permit Environmental authority EPML00720413 - Callide Coal Mine

The holder of this environmental authority must complete an annual groundwater monitoring report by 31 March 2023 and each year thereafter and submit this report to the administering authority upon request. The report must be prepared by an appropriately qualified person and must address the following requirements as a minimum: (a) analyses of groundwater chemistry and hydrogeological data for all groundwater monitoring bores listed in Table D1 - Groundwater monitoring locations and frequency; (b) discuss effectiveness of the groundwater monitoring program described in Table D1 - Groundwater monitoring locations and frequency and any improvements necessary to ensure early detection of unexpected changes in groundwater levels and quality; (c) Ensure that all unexpected changes to groundwater levels and quality due to the mining activity are identified and monitored. Where unexpected changes to groundwater levels and quality are identified, describe any monitoring and management measures necessary to minimise the potential for significant environmental harm due to the approved mining activities (d) Include a conceptual groundwater model that is reviewed, updated and validated once every 2 years in accordance with findings of the groundwater monitoring; (e) changes in groundwater levels plotted as a function of time to identify seasonal patterns and possible draw-down effects; (f) groundwater elevation contours and flow direction; and (g) interpretation and discussion of groundwater monitoring data.

Groundwater quality results when measured at the monitoring locations specified in Table D1 - Groundwater monitoring locations and frequency must not exceed the groundwater quality trigger levels specified in Table D2 - Groundwater quality triggers on any three (3) consecutive sampling occasions in accordance with the sampling frequency specified in Table D1 - Groundwater monitoring locations and frequency.

Groundwater levels when measured at the monitoring locations and frequencies specified in Table D1 - Groundwater monitoring locations and frequency must not exceed the groundwater level trigger thresholds specified in Table D3 - Groundwater level trigger thresholds.

If groundwater quality or levels measured at compliance groundwater monitoring bores identified in Table D1 - Groundwater monitoring locations and frequency exceed any of the groundwater quality trigger levels stated in Table D2 - Groundwater quality triggers or any of the groundwater level trigger thresholds stated in Table D3 - Groundwater level trigger thresholds, an investigation must be undertaken by the holder of the environmental authority within fourteen (14) days of detection to determine if the exceedance is a result of: (a) mining activities authorised under this environmental authority; or (b) natural variation; or (c) neighbouring land use resulting in groundwater impacts. Permit Environmental authority EPML00720413 - Callide Coal Mine

The holder of this environmental authority must provide a report of the investigation to the administering authority via WaTERS within twenty-eight (28) days of completion of the investigation under condition D9.

Bore construction and maintenance and decommissioning The construction, maintenance, management and decommissioning of groundwater bores (including groundwater monitoring bores) must be undertaken in a manner that prevents or minimises impacts to the environment and ensures the integrity of the bores to obtain accurate monitoring. Permit Environmental authority EPML00720413 - Callide Coal Mine Table D1 - Groundwater monitoring locations and frequency Monitoring Screened Bore Location Coordinates1 Ground Monitoring Site ID Formation Surface Frequency Elevation (m)2 1900 Callide Coal Latitude Longitude Groundwater Groundwater DC040C Measures (GDA2020) (GDA2020) 270.32 Quality Level TG01

Callide Coal -24.324250 150.627859 Quarterly Quarterly

Callide Coal -24.294118 150.547101 217.67 Quarterly Quarterly R30765 Measures R30845 -24.287237 150.633994 368.69 Quarterly Quarterly

Measures -24.272976 150.585851 291.83 Quarterly Quarterly C0507663

Callide Coal -24.258934 150.619306 329.18 Quarterly Quarterly

Measures BHE_VWP0 -24.207758 150.482171 204.29 Quarterly Quarterly 14 Callide Coal Measures -24.220865 150.483891 202.85 Quarterly Quarterly Basement -24.255793 150.545533 271.40 Not applicable Quarterly Volcanics -24.247797 150.510650 224.57 Not applicable Quarterly Basement Volcanics -24.259008 150.522227 244.46 Not applicable Quarterly Precipice -24.240946 150.529477 268.98 Quarterly Quarterly Sandstone -24.202560 150.525760 321.90 Quarterly Quarterly Precipice Sandstone -24.238984 150.498861 246.96 Quarterly Quarterly Precipice -24.240883 150.529439 269.07 Quarterly Quarterly Sandstone -24.221633 150.547528 335.70 Quarterly Quarterly Precipice Sandstone -24.193001 150.519106 295.29 Not applicable High frequency3 Callide Coal Measures Callide Coal Measures Callide Coal Measures Callide Coal Measures Callide Coal Measures Notes: 1 Coordinates are in GDA2020, Zone 56 2 Elevation in metres above reduced/relative level (m RL). 3 `High frequency' monitoring means automatic recording of groundwater levels at pre-set intervals (nominally 6-hourly) using a datalogger. 4 Groundwater level monitoring site for observation purposes only. 5 Groundwater level monitoring site for validation of predicted groundwater levels in the Precipice Sandstone aquifer. Permit Environmental authority EPML00720413 - Callide Coal Mine Table D2 - Groundwater quality triggers Mining area Monitoring bore pH Triggersa EC Triggersb (pH units) (-S/cm) Dunn Creek DC01 6.56 - 6.94 7,104 Trap Gully 6.78 - 7.40 5,662

TBA C0507663 TBA 1,780 6.27 - 6.90 MB06 MB07

TBA TBA Boundary Hill MB26 6.02 - 6.41 1,638

4.46 - 6.06 928 R3038 6.08 - 6.87 1,689 R3055 6.65 - 7.09 2,232 R3070 6.25 - 6.85 1,296 R3072 6.68 - 7.67 2,012 R3076 6.49 - 7.06 1,668 R3079 6.67 - 7.12 3,554 R3084 6.62 - 7.13 1,305 Notes: a) Acceptable pH range. For the purpose of condition D7 an exceedance is 3 consecutive results above the acceptable pH range or 3 consecutive results below the acceptable pH range. b) Maximum EC value. Permit Environmental authority EPML00720413 - Callide Coal Mine Table D3 - Groundwater level trigger thresholds Monitoring Site ID Groundwater Level trigger Trigger basis threshold1 1900 253.00 Nominal elevation 0.2m DC040C 248.54 above base of bore6

214.40 2023 Groundwater model5

197.31 Nominal elevation 0.2m above base of bore6

211.89 Generic 5m drawdown

296.35 R3076 Generic 5m drawdown R3084 195.00 trigger2 BHE_VWP01 200.15 2023 Groundwater model4

Not applicable Nominal elevation 0.2m Notes: 197.38 above base of bore6 2023 Groundwater model4 Generic 5m drawdown trigger2 2023 Groundwater model4 Generic 5m drawdown trigger3 2023 Groundwater model7 2023 Groundwater model5 For observation purposes only 2023 Groundwater model5 1 Proposed level trigger thresholds are a minimum value presented in metres above reduced/relative level (m RL). 2 Trigger level calculated by the environmental authority holder by applying a generic 5m drawdown trigger threshold to observed groundwater levels. 3 Trigger level calculated by the administering authority by applying a 5m drawdown trigger threshold to average observed groundwater levels. 4 Trigger level calculated by the environmental authority holder based on 2023 groundwater model. 5 Trigger level calculated by the administering authority based on 2023 groundwater model with no correction factor applied. 6 Trigger level calculated by the administering authority to be set above the base of the bore. 7 Trigger level calculated by the administering authority via manual adjustment of model prediction hydrograph/extrapolation of observed groundwater levels. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule E - Acoustic Condition Condition number

Noise Nuisance Noise from the mining activity must not cause an environmental nuisance at any sensitive place.

When requested by the administering authority, noise monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised officer) of environmental nuisance at any sensitive place, and the results must be notified within ten (10) business days to the administering authority following completion of monitoring.

The method of measurement and reporting of noise levels must comply with the latest edition of the administering authority's `Noise Measurement Manual'.

Airblast overpressure and ground vibration from the mining activity must not cause an environmental nuisance at any sensitive place.

When requested by the administering authority, airblast overpressure and ground vibration monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised officer) of environmental nuisance at any sensitive place, and the results must be notified within ten (10) business days to the administering authority following completion of monitoring.

Monitoring required by condition E5 must include: (a) location of the blast/s within the mining area (including which bench level); (b) atmospheric conditions including temperature, relative humidity and wind speed and direction; and (c) location, date and time of recording. Permit Environmental authority EPML00720413 - Callide Coal Mine Table E1 - Blasting noise limits Blasting noise limits at any sensitive place or commercial place Monday to Saturday Sundays and Public Holidays All days 9.00am - 5.00pm 9.00am-5.00pm 5.00pm-9.00am All mining areas: At The Hut mining area only: Airblast Maximum air blast All blasts permitted. No blasting overpressure overpressure level (linear peak) all blasts in any given All other mining areas: 12-month period: (a) interburden and coal blasts (a) less than 115 dBL for only and no overburden blasts 90% of blasts; and permitted. (b) 115 to 120 dBL for 9% of (b) Maximum air blast blasts; and overpressure level (linear peak) all blasts in any given (c) 120 to 125 dBL for 1% of 12-month period: blasts. (i) Less than 115 dBL for 90% of blasts; (ii) 115 to 120 dBL for 9% of blasts; and (iii) 120 to 125 dBL for 1% of blasts. 5mm/s peak particle velocity The Hut Mining Area: for any four (4) out of five (5) consecutive blasts and a (a) All blasts permitted. maximum of 10 mm/s. (b) Vibration limits: 10mm/s peak Ground vibration particle velocity for any 4 out of No blasting peak particle 5 consecutive blasts and a velocity maximum of 10 mm/s. Other Mining Areas: (a) Interburden and coal blasts only. No overburden blasts permitted.

If it can be demonstrated to the administering authority that an exceedance of the limits defined in Table E1 - Blasting noise limits is caused by activities other than mining activities the administering authority may determine that the holder is not in breach of condition E4.

If monitoring indicates an exceedance of the relevant limits in Table E1 - Blasting noise limits, then the environmental authority holder must: (a) address any noise complaint received, including the use of appropriate dispute resolution if required; or (b) immediately implement air blast overpressure and/or vibration abatement measures so that air blast overpressure and/or vibration from the activity does not result in further environmental nuisance. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule F - Land Condition Condition number

All land disturbed by mining activities must be rehabilitated in a manner that ensures it is: (a) safe for humans and wildlife; (b) stable; (c) able to sustain vegetation; and (d) non-polluting.

Rehabilitation Management Plan A Rehabilitation Management Plan must be developed by a suitably qualified person and implemented for all areas disturbed by mining activities by 30 November 2020. The Rehabilitation Management Plan must: (a) be reviewed every three (3) years; and (b) identify milestones for mine closure.

At a minimum the Rehabilitation Management plan must include: (a) map existing areas of rehabilitation including classification of stage (i.e. time since establishment) and quality; (b) a strategy for progressive rehabilitation; (c) detail the design objectives for rehabilitation of each domain to achieve rehabilitation success criteria and the identified post mining land uses; (d) specify spoil characteristics, soil analysis, soil separation for use on rehabilitation; (e) specify the topsoil requirements for the site and provide details of how topsoil will be managed for use in rehabilitation; (f) detail any topsoil deficit and how any deficit will be managed for successful rehabilitation, including, if applicable, the proposal of surrogate growth media; (g) detail rehabilitation methods applied to areas; (h) detail landform design including end of mine design; (i) detail how landform design will be consistent with surrounding topography; (j) identify and detail planned native vegetation rehabilitation areas and corridors; (k) identify at least a minimum of three (3) reference sites for use in rehabilitation monitoring; (l) describe rehabilitation indicators and how these will be monitored; (m) describe management actions to address unsuccessful rehabilitation or redesign; (n) describe end of mine landform design planning and post mining land uses across the mine; and include a triple bottom line assessment (or a comparative alternative assessment method) of the proposed final landform design criteria and alternatives. Permit Environmental authority EPML00720413 - Callide Coal Mine

Rehabilitation requirements - All mining areas (Boundary Hill, Dunn Creek, Trap Gully, The Hut, The Bluff and Boundary Hill South) Rehabilitation must commence progressively as soon as areas become available.

Rehabilitation requirements - All mining areas (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) All areas significantly disturbed by the Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas must be rehabilitated to the final land description as defined in: (a) Table F1 - Final land use capability and projective area (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); (b) Table F2 - Final landform design criteria (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); and (c) The acceptance criteria stated in "Callide Mine Report on Rehabilitation Acceptance (Completion) Criteria", Barcode C1554627, December 2003. Southern Pits Table F1 - Final land use capability and projective area schedule (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) Boundary Hill Tenure ID: Mining leases 5632, 5641, 5662, 5653, Tenure ID: Mining leases 5655, 6994, 80115, 80107, 5654, 80093, 6993, 80030, 80092, 80118, 80117, 80151, 80186 80122 Post Mine land capability Projective surface area Post mine land capability Projective surface area (ha) classification (ha) classification 4 100 4 64 5 6.9 5 0 6 239.4 6 360 7 2,203.70 7 567 8 2,028.70 8 173 Permit Environmental authority EPML00720413 - Callide Coal Mine Table F2 - Final landform design criteria (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) Disturbance type Slope Drainage Dragline and pre-strip soil Overall slope angle of 15% on outer Graded banks at 10m vertical intervals (except Dunn Creek A slopes. (approx. every 60m along the slope). and S Cut spoil) - outer slopes Dunn Creek A & S Cut Overall slope angle of 25%, 120m Berms or graded banks at 120m spacing spoil - outer slopes slope length, basalt mulch cladding. along the slope. Internal slopes Generally, 15% or flatter. Graded banks at 10m vertical intervals Trial slopes From 15% to 25% with topsoil or Graded banks at 10m vertical intervals. basalt mulch cladding. Cut off drain/diversion bund across top of

Areas which are to be progressively rehabilitated to native ecosystem must comply with the following outcomes: (a) all areas disturbed by mining activities must be rehabilitated to the landform design criteria defined in Table F2 - Final landform design criteria (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); and (b) landforms are stable with erosion comparable and similar to analogue sites.

Residual voids must comply with the following outcomes: (a) residual voids must not cause any serious environmental harm to land, surface waters or any recognised ground water aquifer, other than the environmental harm constituted by the existence of the residual void itself, and subject to any other condition within this environmental authority; and (b) residual voids must comply with Table F3 - Residual void design outcomes (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); and (c) notwithstanding condition F1, residual void areas - including high walls, low walls, end walls, ramps and ramp slopes and void water bodies - for the Boundary Hill (excluding Boundary Hill South), Dunn Creek, Trap Gully, The Hut and The Bluff must meet the acceptance criteria stated in the "Callide Mine Report on Completion Criteria for Residual Voids", December 2005 (with the exception of the criterion relating to submerged low walls and ramps); and as such are considered to be non-use management areas (NUMAs).

Rehabilitation requirements - Boundary Hill South Mining Area (a) Land disturbed within the Boundary Hill South Mining Area must be rehabilitated in accordance with Appendix 1 - Rehabilitation requirements (Boundary Hill South Mining Area) and Appendix 2, Figure 2 - Boundary Hill South Mining Area conceptual final landform; and (b) The Boundary Hill South residual void NUMA must not exceed a maximum residual void NUMA area of 147.4ha; and (c) The Boundary Hill South residual void NUMA is authorised at the location and to the extent shown in Appendix 2, Figure 2 - Boundary Hill South Mining Area conceptual final landform. Permit Environmental authority EPML00720413 - Callide Coal Mine Void Table F3 - Residual void design outcomes Identification (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) High wall Configuration Low wall 75- slope angle. Ramp Spoil Safety bunds will be constructed along the top of the high walls and along the crest of the pre-strip benches. The pre-strip benches will be shaped to shed runoff over the high wall at several locations to limit erosion. Generally at angle of repose. Generally at angle of repose.

Contaminated land Before applying for surrender of a mining lease, the holder must (if applicable) provide to the administering authority a site investigation report under the Environmental Protection Act 1994 in relation to any part of the mining lease which has been used for notifiable activities or which the holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of that report to ensure that the land is suitable for its final land use.

Before applying for progressive rehabilitation certification for an area, the holder must (if applicable) provide to the administering authority a site investigation report under the Environmental Protection Act 1994, in relation to any part of the area the subject of the application which has been used for notifiable activities or which the holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of that report to ensure that the land is suitable for its final land use under conditions of this schedule relating to final land use.

Minimise the potential for contamination of land by hazardous contaminants. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule G - Regulated Structures Condition Condition number

Assessment of consequence category The consequence category of any structure must be assessed by a suitably qualified and experienced person in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) at the following times: (a) prior to the design and construction of the structure, if it is not an existing structure; or (b) prior to any change in its purpose or the nature of its stored contents.

A consequence assessment report and certification must be prepared for each structure assessed and the report may include a consequence assessment for more than one structure.

Certification must be provided by the suitably qualified and experienced person who undertook the assessment, in the form set out in the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635).

Design and construction of a regulated structure Conditions G5 to G9 inclusive do not apply to existing structures.

All regulated structures must be designed by, and constructed under the supervision of, a suitably qualified and experienced person in accordance with the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635).

Construction of a regulated structure is prohibited unless the environmental authority holder has submitted a consequence category assessment report and certification to the administering authority has been certified by a suitably qualified and experienced person for the design and design plan and the associated operating procedures in compliance with the relevant condition of this environmental authority.

Certification must be provided by the suitably qualified and experienced person who oversees the preparation of the design plan in the form set out in the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) and must be recorded in the Register of Regulated Structures. Permit Environmental authority EPML00720413 - Callide Coal Mine

Regulated structures must: (a) be designed and constructed in accordance with and conform to the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635); (b) be designed and constructed with due consideration given to ensuring that the design integrity would not be compromised on account of: (i) floodwaters from entering the regulated dam from any watercourse or drainage line; and (ii) wall failure due to erosion by floodwaters arising from any watercourse or drainage line; (c) have the floor and sides of the dam designed and constructed to prevent or minimise the passage of the wetting front and any entrained contaminants through either the floor or sides of the dam during the operational life of the dam and for any period of decommissioning and rehabilitation of the dam.

Certification by the suitably qualified and experienced person who supervises the construction must be submitted to the administering authority on the completion of construction of the regulated structure, and state that: (a) the 'as constructed' drawings and specifications meet the original intent of the design plan for that regulated structure; and (b) construction of the regulated structure is in accordance with the design plan.

Operation of a regulated structure Operation of a regulated structure, except for an existing structure, is prohibited unless the environmental authority holder has submitted to the administering authority: (a) one paper copy and one electronic copy of the design plan and certification of the `design plan' in accordance with condition G7; and (b) a set of `as constructed' drawings and specifications; and (c) certification of those `as constructed drawings and specifications' in accordance with condition G9; and (d) where the regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the Design Storage Allowance (DSA) volume across the system, a copy of the certified system design plan; and (e) the requirements of this environmental authority relating to the construction of the regulated structure have been met; and (f) the environmental authority holder has entered the details required under this environmental authority, into a Register of Regulated Structures; and (g) there is a current operational plan for the regulated structures. Permit Environmental authority EPML00720413 - Callide Coal Mine

For existing structures that are regulated structures: (a) where the existing structure that is a regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the DSA volume across the system, the holder must submit to the administering authority a copy of the certified design plan including that structure; and (b) there must be a current operational plan for the existing structure.

Each regulated structure must be maintained and operated, for the duration of its operational life until decommissioned and rehabilitated, in a manner that is consistent with the current operational plan and, if applicable, the current design plan and associated certified `as constructed' drawings.

Mandatory reporting level Conditions G14 to G17 inclusive only apply to regulated structures which have not been certified as low consequence category for `failure to contain - overtopping'.

The Mandatory Reporting Level (MRL) must be marked on a regulated dam in such a way that during routine inspections of that dam, it is clearly observable.

The environmental authority holder must, as soon as practical and within forty-eight (48) hours of becoming aware, notify the administering authority when the level of the contents of a regulated dam reaches the MRL.

The environmental authority holder must, immediately on becoming aware that the MRL has been reached, act to prevent the occurrence of any unauthorised discharge from the regulated dam.

The environmental authority holder must record any changes to the MRL in the Register of Regulated Structures.

Design storage allowance The environmental authority holder must assess the performance of each regulated dam or linked containment system over the preceding November to May period based on actual observations of the available storage in each regulated dam or linked containment system taken prior to 1 July of each year.

By 1 November of each year, storage capacity must be available in each regulated dam (or network of linked containment systems with a shared DSA volume), to meet the DSA volume for the dam (or network of linked containment systems).

The environmental authority holder must, as soon as possible and within forty-eight (48) hours of becoming aware that the regulated dam (or network of linked containment systems) will not have the available storage to meet the DSA volume on 1 November of any year, notify the administering authority. Permit Environmental authority EPML00720413 - Callide Coal Mine

The environmental authority holder must, immediately on becoming aware that a regulated dam (or network of linked containment systems) will not have the available storage to meet the DSA volume on 1 November of any year, act to prevent the occurrence of any unauthorised discharge from the regulated dam or linked containment systems.

Annual inspection report Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.

At each annual inspection, the condition and adequacy of all components of the regulated structure must be assessed and a suitably qualified and experienced person must prepare an annual inspection report containing details of the assessment and include recommended actions to ensure the integrity of the regulated structure.

The suitably qualified and experienced person who prepared the annual inspection report must certify the report in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635).

The environmental authority holder must within twenty (20) business days of receipt of the annual inspection report, provide to the administering authority: (i) the recommendations section of the annual inspection report; (ii) if applicable, any actions being taken in response to those recommendations.

Transfer arrangements The environmental authority holder must provide a copy of any reports, documentation and certifications prepared under this environmental authority, including but not limited to any Register of Regulated Structures, consequence assessment, design plan and other supporting documentation, to a new holder on transfer of this environmental authority.

Register of Regulated Structures A Register of Regulated Structures must be established and maintained by the environmental authority holder for each regulated structure.

The environmental authority holder must provisionally enter the required information in the Register of Regulated Structures when a design plan for a regulated dam is submitted to the administering authority.

The environmental authority holder must make a final entry of the required information in the Register of Regulated Structures once compliance with condition G10 and G12 has been achieved.

The environmental authority holder must ensure that the information contained in the Register of Regulated Structures is current and complete on any given day.

All entries in the Register of Regulated Structures must be approved by the chief executive officer for the environmental authority holder, or their delegate, as being accurate and correct. Permit Environmental authority EPML00720413 - Callide Coal Mine

The holder must, at the same time as providing the annual return, supply to the administering authority a copy of the records contained in the Register of Regulated Structures, in the electronic format required by the administering authority.

Transitional arrangements All existing structures that have not been assessed in accordance with either the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) or the former Manual for Assessing Hazard Categories and Hydraulic Performance of Dams must be assessed and certified in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635).

All existing structures must subsequently comply with the timetable for any further assessments in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) specified in Table G1 - Transitional requirements for existing structures, depending on the consequence category for each existing structure assessed in the most recent previous certification for that structure.

Table G1 - Transitional requirements for existing structures ceases to apply for a structure once any of the following events has occurred: (a) it has been brought into compliance with the hydraulic performance criteria applicable to the structure under the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635); or (b) it has been decommissioned; or (c) it has been certified as no longer being assessed as a regulated structure. Permit Environmental authority EPML00720413 - Callide Coal Mine Table G1 - Transitional hydraulic performance requirements for existing structures Transition period required for existing structures to achieve the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Dams Compliance with High Significant Low criteria >90% and a history of No transition required No transition required No transitional conditions good compliance apply. performance in last 5 years Review consequence assessment every 7 years. >70%-90% Within 7 years, unless Within 10 years, unless No transitional conditions otherwise agreed with the otherwise agreed with the apply. administering authority, administering authority, based on no history of based on no history of Review consequence unauthorised releases. unauthorised releases. assessment every 7 years. 50-70% Within 5 years unless Within 7 years unless Review consequence otherwise agreed with the otherwise agreed with the assessment every 7 administering authority, administering authority, years. based on no history of based on no history of unauthorised releases. unauthorised releases. 50% Within 5 years or as per Within 5 years or as per Review consequence compliance requirements compliance requirements assessment every 5 (e.g. TEP timing) (e.g. TEP timing) years.

Certification of the transitional assessment required by G33 and G34 (as applicable) must be provided to the administering authority. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule H - Waste Condition Condition number

Storage of Tyres Tyres stored awaiting disposal or transport for take-back and, recycling, or waste-to-energy options, should be stockpiled in volumes less than 3m in height and 200 square metres in area and at least 10m from any other tyre storage area.

All reasonable and practicable fire prevention measures must be implemented, including removal of grass and other materials within a 10m radius of the scrap tyre storage area.

Disposing of scrap tyres resulting from the mining activities in spoil emplacements is acceptable, provided tyres are placed as deep in the spoil as possible but not directly on the pit floor.

Scrap tyres resulting from the mining activities disposed within the operational land must not impede saturated aquifers and compromise the stability of the consolidated landform.

Unless otherwise permitted by the conditions of this environmental authority or with prior approval from the administering authority and in accordance with a relevant standard operating procedure, waste must not be burnt.

The holder of this environmental authority may burn vegetation provided the activity does not cause environmental harm at any sensitive or commercial place. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule I - Sewage Treatment Condition Condition number

All effluent released from the sewage treatment plants at Dunn Creek and Boundary Hill must be monitored at end of pipe; at the location specified in Table I1 - Sewage effluent quality targets for irrigation; at the frequency specified in Table I1 - Sewage effluent quality targets for irrigation; and for the parameters specified in Table I1 - Sewage effluent quality targets for irrigation. Table I1 - Sewage effluent quality targets for irrigation Quality characteristics Release Units Limit type Monitoring frequency limit pH 6.0 to 9.0 - range Monthly Free Chlorine Residual 5 mg/L Max Monthly Faecal Coliforms, based on Colonies per 100 Max Monthly the average of a minimum of <10 millilitres five samples collected Total Nitrogen 60 mg/L Max Monthly Total Phosphorus 20 mg/L Max Monthly

Sewage effluent used for dust suppression or irrigation must not exceed sewage effluent release limits defined in Table I1 - Sewage effluent quality targets for irrigation.

Sewage effluent used for dust suppression or irrigation must not cause spray drift or over spray to any sensitive place.

Subject to conditions I1, I2 and I3, sewage effluent from sewage treatment facilities must be reused or evaporated and must not be directly released from the sewage treatment plant to any water way or drainage line. Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule J - Offsets Condition Condition number

MB36 R3084 Oaky Cr e ek HUT03 Trap Gully Cr eek TG01

HUT01 DC040C 7310000 N 1900 TRAP GULLY DUNN CREEK Legend Lake Callide Mining Area Boundary Callide Cr eek Surface Drainage Groundwater Monitoring Bore Vibrating Wire Piezometer DATUM: GDA94 Zone: 56 0 2.25km Horizontal Scale 2203 Callide - CWQ Amendment (Groundwater bore monitoring network) (4/12/2024) CALLIDE MINE Groundwater Bore Monitoring Network FIGURE 5 Permit Environmental authority EPML00720413 - Callide Coal Mine END OF ENVIRONMENTAL AUTHORITY

Permit Environmental Protection Act 1994 Environmental authority EPML00720413 This environmental authority is issued by the administering authority under Chapter 5 of the Environmental Protection Act 1994. Environmental authority number: EPML00720413 Environmental authority takes effect on 26 May 2025 Environmental authority holder(s) Name(s) Registered address BATCHFIRE CALLIDE PTY LTD `S2', Level 11, 141 Queen Street, Brisbane Qld BATCHFIRE CALLIDE NO. 2 PTY LTD 4000, Australia `S2', Level 11, 141 Queen Street, Brisbane Qld 4000, Australia Environmentally relevant activity and location details Environmentally relevant activity/activities Location(s) Schedule 3 - 13: Mining black coal ML5632, ML5641, ML5653, ML5654, ML5655, ML5662, ML6993, ML6994, ML700059, ML80030, ML80092, ML80093, ML80107, ML80115, ML80117, ML80118, ML80122, ML80151, ML80186 Ancillary 08 - Chemical storage 3: storing more than ML 80030, ML 5655, ML5632, ML5653, ML5654, 500m3 of chemicals of class C1 or C2 combustible ML5655, ML5662, ML6994, ML700059, ML80030, liquids under AS 1940 or dangerous goods class 3 ML80093, ML80117, ML80118, ML80122, ML80186 under subsection (1)(c) Ancillary 08 - Chemical storage 5: storing 200m3 or ML5662 more of chemicals that are liquids, other than chemicals mentioned in items 1 to 3, under subsection (1)(d)

Permit Environmental authority EPML00720413 - Callide Coal Mine Environmentally relevant activity/activities Location(s) Ancillary 33 - Crushing, milling, grinding or screening ML5632, ML5641, ML5653, ML5654, ML5655, Crushing, grinding, milling or screening more than ML5662, ML6993, ML6994, ML700059, ML80030, 5000t of material in a year ML80092, ML80093, ML80107, ML80115, ML80117, ML80118, ML80122, ML80151, ML80186 Ancillary 63 - Sewage Treatment 1: Operating sewage ML5632, ML5641, ML5653, ML5654, ML5655, treatment works, other than no-release works, with a ML5662, ML6993, ML6994, ML700059, ML80030, total daily peak design capacity of (b-i) more than 100 ML80092, ML80093, ML80107, ML80115, but not more than 1500EP if treated effluent is ML801170, ML80118, ML80122, ML80151, discharged from the works to an infiltration trench or ML80186 through an irrigation scheme Additional information for applicants Environmentally relevant activities The description of any environmentally relevant activity (ERA) for which an environmental authority (EA) is issued is a restatement of the ERA as defined by legislation at the time the EA is issued. Where there is any inconsistency between that description of an ERA and the conditions stated by an EA as to the scale, intensity or manner of carrying out an ERA, the conditions prevail to the extent of the inconsistency. An EA authorises the carrying out of an ERA and does not authorise any environmental harm unless a condition stated by the EA specifically authorises environmental harm. A person carrying out an ERA must also be a registered suitable operator under the Environmental Protection Act 1994 (EP Act). Contaminated land It is a requirement of the EP Act that an owner or occupier of contaminated land give written notice to the administering authority if they become aware of the following: - the happening of an event involving a hazardous contaminant on the contaminated land (notice must be given within 24 hours); or - a change in the condition of the contaminated land (notice must be given within 24 hours); or - a notifiable activity (as defined in Schedule 3) having been carried out, or is being carried out, on the contaminated land (notice must be given within 20 business days) that is causing, or is reasonably likely to cause, serious or material environmental harm. For further information, including the form for giving written notice, refer to the Queensland Government website www.qld.gov.au, using the search term `duty to notify'. Take effect Please note that, in accordance with section 200 of the EP Act, an EA has effect: a) if the authority is for a prescribed ERA and it states that it takes effect on the day nominated by the holder of the authority in a written notice given to the administering authority - on the nominated day; or

Permit Environmental authority EPML00720413 - Callide Coal Mine b) if the authority states a day or an event for it to take effect - on the stated day or when the stated event happens; or c) otherwise - on the day the authority is issued. However, if the EA is authorising an activity that requires an additional authorisation (a relevant tenure for a resource activity, a development permit under the Planning Act 2016 or an SDA Approval under the State Development and Public Works Organisation Act 1971), this EA will not take effect until the additional authorisation has taken effect. If this EA takes effect when the additional authorisation takes effect, you must provide the administering authority written notice within 5 business days of receiving notification of the related additional authorisation taking effect. If you have incorrectly claimed that an additional authorisation is not required, carrying out the ERA without the additional authorisation is not legal and could result in your prosecution for providing false or misleading information or operating without a valid environmental authority. Signature 26 May 2025 Ben Byrd Date and Innovation Enquiries: Delegate of the administering authority Business Centre (Coal) and Innovation PO Box 3028 EMERALD QLD 4720 Phone: (07) 4987 9320 Email: CRMining@des.qld.gov.au

Permit Environmental authority EPML00720413 - Callide Coal Mine Privacy statement Pursuant to section 540 of the EP Act, the Department is required to maintain a register of certain documents and information authorised under the EP Act. A copy of this document will be kept on the public register. The register is available for inspection by members of the public who are able take extracts, or copies of the documents from the register. Documents that are required to be kept on the register are published in their entirety, unless alteration is required by the EP Act. There is no general discretion allowing the Department to withhold documents or information required to be kept on the public register. For more information on the Department's public register, search `public register' at www.qld.gov.au. For queries about privacy matters please email privacy@des.qld.gov.au or telephone 13 74 68. Obligations under the Environmental Protection Act 1994 In addition to the requirements found in the conditions of this environmental authority, the holder must also meet their obligations under the EP Act, and the regulations made under the EP Act. For example, the holder must comply with the following provisions of the Act: - general environmental duty (section 319) - duty to notify environmental harm (section 320-320G) - offence of causing serious or material environmental harm (sections 437-439) - offence of causing environmental nuisance (section 440) - offence of depositing prescribed water contaminants in waters and related matters (section 440ZG) - offence to place contaminant where environmental harm or nuisance may be caused (section 443) Other permits required This permit only provides an approval under the Environmental Protection Act 1994. In order to lawfully operate you may also require permits / approvals from your local government authority, other business units within the department and other State Government agencies prior to commencing any activity at the site. For example, this may include permits / approvals with your local Council (for planning approval), the Department of Transport and Main Roads (to access state controlled roads), the Department of Resources (to clear vegetation), and the Department of Agriculture and Fisheries (to clear marine plants or to obtain a quarry material allocation).

Permit Environmental authority EPML00720413 - Callide Coal Mine Conditions of environmental authority The environmentally relevant activity(ies) conducted at the location as described above must be conducted in accordance with the following site-specific conditions of approval. This environmental authority consists of the following Schedules and Appendices: Schedule A General Schedule B Air Schedule C Surface water Schedule D Groundwater Schedule E Acoustic Schedule F Land Schedule G Regulated Structures Schedule H Waste Schedule I Sewage Treatment Schedule J Offsets Schedule A - General Condition Condition number A1 All reasonable and practicable measures must be taken to prevent or minimise environmental harm caused by the activities authorised by this environmental authority. A2 The activities conducted under this environmental authority on the Boundary Hill South Mining Area (ML80186) must not exceed the disturbance footprint in Appendix 2, Figure 1 - Callide Mine Boundary Hill South authorised disturbance footprint. A3 Mining activities must not be carried out in the Mount Murchison Nature Refuge (Protected Area Plan number PA 1111) as shown in Appendix 2, Figure 3 - Mount Murchison Nature Refuge, except for activities necessary to comply with the conditions of the mining lease, environmental authority, or other legislative obligations, such as managing tracks, fences, firebreaks, and communication infrastructure. A4 The holder of this environmental authority is authorised to extract five (5) million tonnes per annum (Mtpa) of run-of-mine (ROM) coal from ML80186 (Boundary Hill South Mining Area).

Permit Environmental authority EPML00720413 - Callide Coal Mine A5 Maintenance of measures, plant and equipment The holder of this environmental authority 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; and (d) ensure all instruments and devices used for the measurement or monitoring of any parameter under any condition of this environmental authority are properly calibrated. A6 Monitoring Except where specified otherwise in another condition of this environmental authority, all monitoring records or reports required by this environmental authority must be kept for a period of not less than five (5) years. A7 Management plans and reports All management plans and reports required under any condition of this environmental authority must be developed by an appropriately qualified person(s). A8 Upon request from the administering authority, copies of monitoring results, records, registers, management plans, reports, and spatial information required by the conditions of this environmental authority must unless otherwise specified be made available and provided to the administering authority within fourteen (14) days. A9 Notification of emergencies, incidents and exceptions The holder of this environmental authority must notify the administering authority by written notification within twenty-four (24) hours, after becoming aware of any emergency or 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. A10 Within ten (10) business days following the notification in accordance with condition A9, 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 emergency or incident.

Permit Environmental authority EPML00720413 - Callide Coal Mine A11 Complaints The holder of this environmental authority must record all environmental complaints received about the mining activities including: (a) name, address and contact number of the complainant; (b) time and date of complaint; (c) reasons for the complaint; (d) investigations undertaken; (e) conclusions formed; (f) actions taken to resolve the complaint; (g) any abatement measures implemented; and (h) person responsible for resolving the complaint. A12 The holder of this environmental authority must, when requested by the administering authority and within a reasonable timeframe nominated or agreed to by the administering authority: (a) investigate any complaint of environmental harm; (b) undertake the relevant specified monitoring; and (c) within ten (10) business days of completion of the investigation, or no later than ten (10) business days after the end of the timeframe nominated by the administering authority to undertake the investigation, provide to the administering authority the results of the investigation (including an analysis and interpretation of the monitoring results) and abatement measures, where implemented. A13 Where a condition of this environmental authority requires compliance with a standard, policy or guideline published externally to this environmental authority and the standard is amended or changed subsequent to the issue of this environmental authority, the holder of this environmental authority must: (a) comply with the amended or changed standard, policy or guideline within two (2) years of the amendment or change being made, unless a different period is specified in the amended standard or relevant legislation, or where the amendment or change relates specifically to regulated structures referred to in condition G33, the time specified in that condition; and (b) until compliance with the amended or changed standard, policy or guideline is achieved, continue to remain in compliance with the corresponding provision that was current immediately prior to the relevant amendment or change. A14 Risk management The holder of this environmental authority must develop and implement a risk management system for mining activities which mirrors the content requirement of the Standard for Risk Management (ISO31000:2018), or the latest edition of an Australian standard for risk management, to the extent relevant to environmental management.

Permit Environmental authority EPML00720413 - Callide Coal Mine A15 Third-party reporting The holder of this environmental authority must: (a) within one (1) year of the commencement of this environmental authority, obtain from an appropriately qualified person a report on compliance with the conditions of this environmental authority; (b) obtain further such reports at regular intervals, not exceeding three-yearly intervals, from the completion of the report referred to above; and (c) provide each report to the administering authority within ninety (90) days of its completion. A16 Storage and handling of flammable and combustible liquids All flammable and combustible liquids must be stored and handled in accordance with the most recent version of AS1940 - The Storage and Handling of Flammable and Combustible Liquids. A17 All hazardous chemicals must be stored and handled in accordance with the relevant Australian Standards, including AS4326 - The Storage and Handling of Oxidising Agents. A18 Any spillage of chemicals or flammable or combustible liquids must be cleaned up in accordance with the AS1940 or the relevant Australian Standard. A19 The Trap Gully Bulk Storage Facility permitted to be carried out under this environmental authority on ML5662 must not exceed the disturbance footprint in Appendix 2, Figure 4 - Callide Mine - Trap Gully Bulk Storage Facility footprint.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule B - Air Condition Condition number B1 Dust and particulate matter monitoring The environmental authority holder must ensure that all reasonable and feasible avoidance and mitigation measures are employed so that the dust and particulate matter emissions generated by the mining activities do not cause exceedances of the following levels when measured at any sensitive or commercial place: (a) Dust deposition of 120 milligrams per square metre per day, averaged over one (1) month, when monitored in accordance with the most recent version of Australian Standard AS3580.10.1 Methods for sampling and analysis of ambient air--Determination of particulate matter--Deposited matter - Gravimetric method. (b) A concentration of particulate matter with an aerodynamic diameter of less than 10 micrometres (PM10) suspended in the atmosphere of 50 micrograms per cubic metre over a twenty-four (24)-hour averaging time when monitored in accordance with the most recent version of either: (i) Australian Standard AS3580.9.9 Methods for sampling and analysis of ambient air-- Determination of suspended particulate matter--PM10 low volume sampler--Gravimetric method; or (ii) Any alternative method of monitoring PM10 which may be permitted by the 'Air Quality Sampling Manual' as published from time to time by the administering authority. (c) A concentration of particulate matter suspended in the atmosphere of 90 micrograms per cubic metre over a one (1) year averaging time, when monitored in accordance with the most recent version of AS/NZS3580.9.3:2003 Methods for sampling and analysis of ambient air-- Determination of suspended particulate matter--Total suspended particulate matter (TSP)-- High volume sampler gravimetric method. B2 If the dust deposition monitoring undertaken as per condition B1(a) indicates an exceedance of the relevant limits, and a complaint is received from any sensitive or commercial place within thirty-one (31) days prior to the exceedance being recorded or within thirty-one (31 days) after the exceedance being recorded, the environmental authority holder must within ninety (90) days of receiving the monitoring results indicating the exceedance, complete an investigation into the exceedance, and submit to the administering authority a report detailing the investigation undertaken. The report must: (a) provide details of the investigation; and (b) detail whether the result is directly associated with mining activities and if so; (i) any dust abatement measures implemented; (ii) whether any environmental harm has occurred; and (iii) outline any actions required to mitigate environmental harm.

Permit Environmental authority EPML00720413 - Callide Coal Mine B3 If the particulate matter monitoring undertaken as per condition B1(b) and B1(c) indicates an exceedance of the relevant limits, the environmental authority holder must within ninety (90) days of receiving the monitoring results indicating the exceedance, complete an investigation into the exceedance, and submit to the administering authority a report detailing the investigation undertaken. The report must: (a) provide details of the investigation; and (b) detail whether the result is directly associated with mining activities and if so; (i) any dust abatement measures implemented; (ii) whether any environmental harm has occurred; and (iii) outline any actions required to mitigate environmental harm. B4 The results of dust deposition and particulate matter monitoring undertaken as per condition B1 must be made available upon request by the administering authority.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule C - Surface Water Condition Condition number C1 Contaminant Release Contaminants that will or have the potential to cause environmental harm must not be released directly or indirectly to any waters as a result of the mining activities, except as permitted under the conditions of this environmental authority. C2 Unless otherwise permitted under the conditions of this environmental authority, the release of mine affected water to waters must only occur from the release points specified in Table C1 - Mine affected water release points, sources and receiving waters. C3 The release of mine affected water to internal water management infrastructure that is installed and operated in accordance with a water management plan that complies with condition C25 is permitted. Table C1 - Mine affected water release points, sources and receiving waters Release Latitude Longitude Mine Affected Monitoring Point Receiving Point (GDA94) (GDA94) Water Source and waters (RP) Location description RP1 RP1a -24.3293 150.6269 Dunn Creek Dam Dam Spillway Dunn Creek spillway overflow RP1b -24.2638 150.6208 Turkey's Nest Flow: End of pipe flow Oaky Creek RP2 Storage monitor, Quality: Storage RP3 -24.2686 150.5528 Trap Gully Pipeline Flow: End of pipe flow Oaky Creek monitor, Quality: Storage (Ghost Ryder's Storage) -24.3019 150.5628 Ghost Ryders Flow: End of pipe flow Oaky Creek Storage monitor, Quality: Downstream of pipe -24.2115 150.4793 Lake Gasteen Flow: End of pipe flow Gate Creek monitor, Quality: Downstream of pipe

Permit Environmental authority EPML00720413 - Callide Coal Mine C4 The release of mine affected water to waters in accordance with condition C2 must not exceed the release limits stated in Table - C2 Mine affected water release limits (Dunn Creek Dam) and Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) when measured at the monitoring points specified in Table C1 - Mine affected water release points, sources and receiving waters for each quality characteristic. Table C2 - Mine affected water release limits (Dunn Creek Dam) Quality Characteristic Release Limits Monitoring frequency Electrical conductivity (-S/cm) 1,400 pH (pH Unit) 6.5 (minimum), 9.0 (maximum) Daily during release (the first sample Suspended Solids (mg/L) 200 must be taken within 2 hours of Sulfate (mg/L) commencement of release) 400 Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) Quality Characteristic Release Limits Monitoring frequency Electrical conductivity ( 1800 maximum S/cm) pH (pH Unit) 6.5 (minimum), 9.0 (maximum) Daily during release (the first sample Suspended Solids (mg/L) must be taken within 2 hours of commencement of release) 1,000 Sulfate (mg/L) 520

Permit Environmental authority EPML00720413 - Callide Coal Mine C5 The release of mine affected water to waters from the release points must be monitored at the locations specified in Table C1 - Mine affected water release points, sources and receiving waters for each quality characteristic and at the frequency specified in Table C2 - Mine affected water release limits (Dunn Creek Dam), Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) and Table C4 - Release contaminant trigger investigation levels - potential contaminants. Note: the administering authority will take into consideration any extenuating circumstances prior to determining an appropriate enforcement response in the event condition C5 is contravened due to a temporary lack of safe or practical access. The administering authority expects the environmental authority holder to take all reasonable and practicable measures to maintain safe and practical access to designated monitoring locations. C6 All analysis and tests for water quality that are required under this environmental authority must be performed by a laboratory that has National Association of Testing Authorities' certification for such analysis and tests. The only exception to this condition is for the monitoring of pH, electrical conductivity, dissolved oxygen, temperature and turbidity in-situ.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table C4 - Release contaminant trigger investigation levels - potential contaminants Quality Trigger Levels Comment on Trigger Level Monitoring Characteristic (-g/L) Frequency Aluminium Cadmium 55 For aquatic ecosystem protection, based on SMD guideline Chromium Copper 0.2 For aquatic ecosystem protection, based on SMD guideline 1 For aquatic ecosystem protection, based on SMD guideline 2 For aquatic ecosystem protection, based on LOR for ICPMS Iron 300 For aquatic ecosystem protection, based on low reliability guideline Lead 4 Mercury 0.2 For aquatic ecosystem protection, based on SMD guideline Nickel 11 Zinc 8 For aquatic ecosystem protection, based on LOR for CV FIMS Boron 370 For aquatic ecosystem protection, based on SMD guideline Cobalt 1.4 For aquatic ecosystem protection, based on SMD guideline Manganese 1,900 Molybdenum 34 For aquatic ecosystem protection, based on SMD guideline Commencement of Selenium 10 For aquatic ecosystem protection, based on low reliability release and Silver 1 guideline thereafter weekly Uranium 1 For aquatic ecosystem protection, based on SMD guideline during release Vanadium 10 Ammonia 900 For aquatic ecosystem protection, based on SMD guideline For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on LOR for ICPMS For aquatic ecosystem protection, based on SMD guideline Nitrate 1,100 For aquatic ecosystem protection, based on ambient Qld WQ Guidelines (2006) for TN Fluoride (Total) 2,000 Protection of livestock and short-term irrigation guideline Sodium 180,000 Australian Drinking Water Guidelines (2004) Table C4 - Release contaminant trigger investigation levels, potential contaminants notes: 1. All metals and metalloids must be measured as total (unfiltered) and dissolved (filtered). Trigger levels for metal/metalloids apply if dissolved results exceed trigger. 2. The quality characteristics required to be monitored as per Table C4 - Release Contaminant Trigger Investigation Levels - Potential Contaminants can be reviewed once the results of two years monitoring data is available, or if sufficient data is available to adequately demonstrate negligible environmental risk, and it may be determined that a reduced monitoring frequency is appropriate or that certain quality characteristics can be removed from Table C4 - Release Contaminant Trigger Investigation Levels - Potential Contaminants by amendment. 3. SMD - slightly moderately disturbed level of protection; guideline refers ANZECC & ARMCANZ (2000). 4. LOR - typical reporting for method stated. ICPMS/CV FIMS - analytical method required to achieve LOR.

Permit Environmental authority EPML00720413 - Callide Coal Mine C7 If quality characteristics of the release exceed any of the trigger levels specified in Table C4 - Release contaminant trigger investigation levels - potential contaminants during a release event, the environmental authority holder must compare the downstream results in the receiving waters to the trigger values specified in Table C4 - Release contaminant trigger investigation levels - potential contaminants and: (a) where the trigger values are not exceeded then no action is to be taken; or where the downstream results exceed the trigger values specified for any quality characteristic, compare the results of the downstream site to the data from background monitoring sites and: (i) if the result is less than the background monitoring site data, then no action is to be taken; or (ii) if the result is greater than the background monitoring site data, complete an investigation into the potential for environmental harm and provide a written report to the administering authority in the next annual return, outlining: 1. details of the investigations carried out; and 2. actions taken to prevent environmental harm. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with C7(2)(b) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic. C8 If an exceedance in accordance with condition C7(a)(ii) is identified, the environmental authority holder must notify the administering authority within fourteen (14) days of receiving the result. C9 Mine affected water release events The environmental authority holder must ensure a stream flow gauging station/s is installed, operated and maintained to determine and record stream flows at the locations and flow recording frequency specified in Table C5 - Mine affected water release during flow events. C10 Notwithstanding any other condition of this environmental authority, the release of mine affected water to waters in accordance with condition C2 must only take place during periods of natural flow events in accordance with the receiving water flow criteria for discharge specified in Table C5 - Mine affected water release during flow events for the release points specified in Table C1 - Mine affected water release points, sources and receiving waters. C11 The 80th percentile of electrical conductivity (EC) values recorded at the downstream monitoring points listed in Table C6 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam) and Table C7 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam) must not exceed 1600-S/cm over the duration of the release influence period. The 80th percentile must be calculated using all EC values recorded by the monitoring station during the release influence period. Note: The release influence period is the period during which the downstream monitoring points are influenced by mine affected water from Callide Mine and includes both the duration of release and any lag time between release points and downstream monitoring points.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table C5 - Mine affected water release during flow events Minimum Receiving Release Point Gauging Gauging Gauging Flow in Flow water/stream station Station Station Receiving recording Latitude Longitude Water Frequency (GDA94) (GDA94) Required for a Release Eventa Dunn Creek Dunn Creek Dam Callide Dam -24.32305 150.68501 1.5 m3/s (RP1) headwaters Turkey's Nest Goovigen - 24.1065 150.2872 Both: Storage (RP1a) Gauging 150.5961 3 m3/s Both: Callide and Trap Gully Station 150.2872 Creek And Pipeline (RP1b) (GS4) 150.5326 And Oaky Creek 0.1 m3/s Ghost Ryder's Oaky Creek - 24.2617 Both: Callide Storage (RP2) Downstream Both: Creek (GS1) 3 m3/s And Oaky Creek Goovigen - 24.1065 And Continuous Gauging 0.1 m3/s (minimum Station daily) (GS4) Oaky Creek - 24.2952 Trap Gully Confluence (GS2) Callide Creek Lake Gasteen Goovigen - 24.1065 150.2872 3 m3/s Dam (RP3) Gauging Station (GS4) Note: a) In addition, at the tail end of a natural flow event, low flow releases continue to be authorised for a period of fourteen (14) calendar days from the moment that natural flow has receded below the threshold in column 6 and the electrical conductivity is limited to 1220-S/cm. Maximum release rate during this period must not exceed 0.5 m3/s. C12 The daily quantity of mine affected water released from each release point must be measured and recorded at the monitoring points in Table C1 - Mine affected water release points, sources and receiving waters. C13 Releases to waters must be undertaken so as not to cause erosion of the bed and banks of the receiving waters or cause a material build-up of sediment in such waters.

Permit Environmental authority EPML00720413 - Callide Coal Mine C14 Notification of Release Event The environmental authority holder must notify the administering authority via WaTERS within twenty-four (24) hours after commencing to release mine affected water to the receiving environment. Notification must include the submission of written advice to the administering authority of the following information: (a) release commencement date/time; (b) release point/s; (c) release rate; (d) release volume (estimated); (e) receiving water/s including the natural flow rate in the receiving water(s); and (f) any details (including available data) regarding likely impacts on the receiving water(s). C15 The environmental authority holder must notify the administering authority via WaTERS within twenty-four (24) hours after the cessation of a release event notified under condition C14. Notification must include the submission of written advice to the administering authority of the following information: (a) release cessation date and time; (b) natural flow volume in receiving water; and (c) volume of water released. Note: Successive or intermittent releases occurring within twenty-four (24) hours of the cessation of any individual release can be considered part of a single release event and do not require individual notification for the purpose of compliance with conditions C14, C15 and C16, provided the relevant details of the release are included within the notification provided in accordance with conditions C14, C15 and C16. C16 Within twenty-eight (28) days of notification under condition C15, provide the administering authority via WaTERS the following information: (a) confirmation of: (i) the release commencement date and time; (ii) the release cessation date and time; (iii) receiving water(s) including the natural flow rate; and (iv) volume of water released; (b) all in-situ and laboratory water quality monitoring results; (c) details regarding the compliance of the release with the conditions in Schedule C: Surface Water of this environmental authority; (d) whether the release of water resulted in any impacts to the receiving environment; and (e) any other matter(s) pertinent to the water release event.

Permit Environmental authority EPML00720413 - Callide Coal Mine C17 Notification of release event exceedance If the release limits defined in Table C2 - Contaminant release limits (Dunn Creek Dam) and Table C3 - Mine affected water release limits (other than for Dunn Creek Dam) are exceeded, the holder of the environmental authority must notify the administering authority within twenty-four (24) hours of receiving the results. C18 The environmental authority holder must, within twenty-eight (28) days of a release that is not compliant with the conditions of this environmental authority, provide a report to the administering authority detailing: (a) the reason for the release; (b) the location of the release; (c) the total volume of the release and which (if any) part of this volume was non-compliant; (d) the total duration of the release and which (if any) part of this period was non-compliant; (e) all water quality monitoring results (including all laboratory analyses); (f) identification of any environmental harm as a result of the non-compliance; (g) all calculations; and (h) any other matters pertinent to the water release event. C19 Receiving environment monitoring and contaminant trigger levels The quality of the receiving waters must be monitored for each quality characteristic and at the monitoring locations specified in Table C6 - Receiving waters contaminant trigger levels at the locations specified in: (a) Table C7 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam); and (b) Table C8 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam).

Permit Environmental authority EPML00720413 - Callide Coal Mine Table C6 - Receiving waters contaminant trigger levels Quality Characteristic Trigger Level Monitoring Frequency pH 6.5 - 8.0 Electrical Conductivity (-S/cm) 80th Percentile: 1,600, Maximum: 1,920 Suspended solids (mg/L) 1,000 Daily during the release Sulfate (mg/L) 250 (Protection of drinking water Environmental Value) Sodium (mg/L) 180 (Australian Drinking Water Guidelines, 2004) Table C7 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam) Monitoring Points Receiving Waters Latitude (GDA94) Longitude (GDA94) Location Description Upstream Background Monitoring Point Dunn Creek Dam Callide Dam headwaters - 24.3224 150.66994 Downstream Background Monitoring Point Dunn Creek Dam Callide Dam - 24.3693 150.6143 Note: The data from background monitoring points must not be used where they are affected by releases from other mines.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table C8 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam) Monitoring Points Receiving Waters Latitude Longitude Location Description (GDA94) (GDA94) Upstream Background Monitoring Points Monitoring Point 1 Dingo Gully 3700 metres - 24.2772 150.6447 upstream of RP1a Monitoring Point 2 Timber Reserve - 24.2487 150.5666 Background 3000 metres Upstream of RP1b Monitoring Point 3 Trap Gully 5000 metres - 24.2826 150.5708 upstream of RP2 unnamed gully confluence with Oaky Creek Monitoring Point 4 Gate Creek 1500 metres - 24.2287 150.4867 upstream of RP3 unnamed gully confluence with Gate Creek. Monitoring Point 5 Callide Creek at Dawson - 24.3707 150.5322 Highway Crossing Downstream Monitoring Points CC1 NRM Goovigen Gauging - 24.1054 150.2866 Station on Callide Creek CC2 Callide Creek Main - 24.2649 150.4132 Channel -Electrical Conductivity Gauge CC3 Callide Creek old Channel - 24.2581 150.4263 -Electrical Conductivity Gauge Monitoring Point 6 Kroombit Creek at - 24.2394 150.3872 McCann's Road Crossing Notes: a) The upstream monitoring point should be within 15km of the release point. b) The downstream point should not be greater than 15km from the release point. c) The data from background monitoring points must not be used where they are affected by releases from other mines.

Permit Environmental authority EPML00720413 - Callide Coal Mine C20 If quality characteristics of the receiving water at the downstream monitoring points exceed any of the trigger levels specified in Table C6 - Receiving waters contaminant trigger levels during a release event, the environmental authority holder must compare the downstream results to the upstream results in the receiving waters and: (a) where the downstream result is the same or a lower value than the upstream value for the quality characteristic then no action is to be taken; or (b) where the downstream results exceed the upstream results, complete an investigation into the potential for environmental harm and provide a written report to the administering authority in the next annual return, outlining: (i) details of the investigations carried out; and (ii) actions taken to prevent environmental harm. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with condition F20(b)(ii) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic. C21 Receiving Environment Monitoring Program (REMP) The environmental authority holder must develop and implement a Receiving Environment Monitoring Program (REMP) to monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised mining activity. This must include monitoring the effects of the mine on the receiving environment periodically (under natural flow conditions) and while mine affected water is being discharged from the site. For the purposes of the REMP, the receiving environment is the waters as described in Table C7 - Receiving water upstream background sites and downstream monitoring points (Dunn Creek Dam) and Table C8 - Receiving water upstream background sites and downstream monitoring points (other than Dunn Creek Dam) and connected waterways within 8.3km downstream of the Dunn Creek Dam release, and additionally the Callide Creek and Oaky Creek 15km downstream of the respective releases and connected or surrounding waterways within the Callide Catchment (15km) downstream of the release. The REMP should encompass any sensitive receiving waters or environmental values downstream of the authorised mining activity that will potentially be directly affected by an authorised release of mine affected water. C22 A report outlining the findings of the REMP, including all monitoring results and interpretations must be prepared annually. This must include: (a) an assessment of background reference water quality; (b) the condition of downstream water quality compared against water quality objectives; and (c) the suitability of current discharge limits to protect downstream environmental values. C23 Water reuse Mine affected water may be piped or trucked or transferred by some other means that does not contravene the conditions of this environmental authority and deposited into artificial water storage structures, such as farm dams or tanks, or used directly at properties owned by the environmental authority holder or a third party (with the consent of the third party).

Permit Environmental authority EPML00720413 - Callide Coal Mine C24 Annual water monitoring reporting The following information must be recorded in relation to all water monitoring required under the conditions of this environmental authority and submitted to the administering authority in the specified format with each annual return: (a) the date on which the sample was taken; (b) the time at which the sample was taken; (c) the monitoring point at which the sample was taken; (d) the measured or estimated daily quantity of mine affected water released from all release points; (e) the release flow rate at the time of sampling for each release point; and (f) the results of all monitoring and details of any exceedances of the conditions of this environmental authority. C25 Water management plan A Water Management Plan must be developed by an appropriately qualified person and implemented. C26 Stormwater and water sediment controls An Erosion and Sediment Control Plan must be developed by an appropriately qualified person and implemented for all stages of the mining activities and must demonstrate how erosion and sediment control measures adequately minimise: (a) erosion; (b) the release of sediment to receiving waters; and (c) contamination of stormwater. C27 Stormwater, other than mine affected water, is permitted to be released to waters from: (a) erosion and sediment control structures that are installed and operated in accordance with the Erosion and Sediment Control Plan required by condition C26; and (b) water management infrastructure that is installed and operated, in accordance with a Water Management Plan for the purpose of ensuring water does not become mine affected water.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule D - Groundwater Condition Condition number D1 The holder of this environmental authority must not release contaminants to groundwater. D2 Monitoring and reporting Groundwater quality must be monitored at the locations and frequencies defined in Table D1 - Groundwater monitoring locations and frequency and shown in Appendix 2, Figure 5 - Groundwater bore monitoring network for the parameters identified in Table D2 - Groundwater quality triggers. D3 Groundwater levels must be monitored at the locations and frequencies defined in Table D1 - Groundwater monitoring locations and frequency and shown in Appendix 2, Figure 5 - Groundwater bore monitoring network. D4 Groundwater quality triggers must be amended to replace all TBA values with appropriate values once at least eight (8) representative measurements are available for bores MB06, MB20 and MB25. Appropriate values must be determined in accordance with the latest edition of the administering authority's guideline `Using monitoring data to assess groundwater quality and potential environmental impacts'. D5 The method of sampling of surface and groundwater must comply with that set out in the latest edition of the administering authority's Monitoring and Sampling Manual.

Permit Environmental authority EPML00720413 - Callide Coal Mine D6 The holder of this environmental authority must complete an annual groundwater monitoring report by 31 March 2023 and each year thereafter and submit this report to the administering authority upon request. The report must be prepared by an appropriately qualified person and must address the following requirements as a minimum: (a) analyses of groundwater chemistry and hydrogeological data for all groundwater monitoring bores listed in Table D1 - Groundwater monitoring locations and frequency; (b) discuss effectiveness of the groundwater monitoring program described in Table D1 - Groundwater monitoring locations and frequency and any improvements necessary to ensure early detection of unexpected changes in groundwater levels and quality; (c) Ensure that all unexpected changes to groundwater levels and quality due to the mining activity are identified and monitored. Where unexpected changes to groundwater levels and quality are identified, describe any monitoring and management measures necessary to minimise the potential for significant environmental harm due to the approved mining activities (d) Include a conceptual groundwater model that is reviewed, updated and validated once every 2 years in accordance with findings of the groundwater monitoring; (e) changes in groundwater levels plotted as a function of time to identify seasonal patterns and possible draw-down effects; (f) groundwater elevation contours and flow direction; and (g) interpretation and discussion of groundwater monitoring data. D7 Groundwater quality results when measured at the monitoring locations specified in Table D1 - Groundwater monitoring locations and frequency must not exceed the groundwater quality trigger levels specified in Table D2 - Groundwater quality triggers on any three (3) consecutive sampling occasions in accordance with the sampling frequency specified in Table D1 - Groundwater monitoring locations and frequency. D8 Groundwater levels when measured at the monitoring locations and frequencies specified in Table D1 - Groundwater monitoring locations and frequency must not exceed the groundwater level trigger thresholds specified in Table D3 - Groundwater level trigger thresholds. D9 If groundwater quality or levels measured at compliance groundwater monitoring bores identified in Table D1 - Groundwater monitoring locations and frequency exceed any of the groundwater quality trigger levels stated in Table D2 - Groundwater quality triggers or any of the groundwater level trigger thresholds stated in Table D3 - Groundwater level trigger thresholds, an investigation must be undertaken by the holder of the environmental authority within fourteen (14) days of detection to determine if the exceedance is a result of: (a) mining activities authorised under this environmental authority; or (b) natural variation; or (c) neighbouring land use resulting in groundwater impacts.

Permit Environmental authority EPML00720413 - Callide Coal Mine D10 The holder of this environmental authority must provide a report of the investigation to the administering authority via WaTERS within twenty-eight (28) days of completion of the investigation under condition D9. D11 Bore construction and maintenance and decommissioning The construction, maintenance, management and decommissioning of groundwater bores (including groundwater monitoring bores) must be undertaken in a manner that prevents or minimises impacts to the environment and ensures the integrity of the bores to obtain accurate monitoring.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table D1 - Groundwater monitoring locations and frequency Monitoring Screened Bore Location Coordinates1 Ground Monitoring Site ID Formation Surface Frequency Elevation (m)2 1900 Callide Coal Latitude Longitude Groundwater Groundwater DC040C Measures (GDA2020) (GDA2020) 270.32 Quality Level TG01 TG02 Callide Coal -24.324250 150.627859 Quarterly Quarterly HUT01 Measures HUT03 -24.298603 150.626564 367.25 Quarterly Quarterly MB36 Callide Coal BH01 Measures -24.283339 150.552074 240.66 Quarterly Quarterly BH_MB01 MB155 Callide Coal -24.294118 150.547101 217.67 Quarterly Quarterly R30765 Measures R30845 -24.287237 150.633994 368.69 Quarterly Quarterly MB29 Callide Coal MB07 Measures -24.272976 150.585851 291.83 Quarterly Quarterly C0507663 MB23 Callide Coal -24.258934 150.619306 329.18 Quarterly Quarterly MB27 Measures BHE_VWP0 -24.207758 150.482171 204.29 Quarterly Quarterly 14 Callide Coal Measures -24.220865 150.483891 202.85 Quarterly Quarterly Basement -24.255793 150.545533 271.40 Not applicable Quarterly Volcanics -24.247797 150.510650 224.57 Not applicable Quarterly Basement Volcanics -24.259008 150.522227 244.46 Not applicable Quarterly Precipice -24.240946 150.529477 268.98 Quarterly Quarterly Sandstone -24.202560 150.525760 321.90 Quarterly Quarterly Precipice Sandstone -24.238984 150.498861 246.96 Quarterly Quarterly Precipice -24.240883 150.529439 269.07 Quarterly Quarterly Sandstone -24.221633 150.547528 335.70 Quarterly Quarterly Precipice Sandstone -24.193001 150.519106 295.29 Not applicable High frequency3 Callide Coal Measures Callide Coal Measures Callide Coal Measures Callide Coal Measures Callide Coal Measures Notes: 1 Coordinates are in GDA2020, Zone 56 2 Elevation in metres above reduced/relative level (m RL). 3 `High frequency' monitoring means automatic recording of groundwater levels at pre-set intervals (nominally 6-hourly) using a datalogger. 4 Groundwater level monitoring site for observation purposes only. 5 Groundwater level monitoring site for validation of predicted groundwater levels in the Precipice Sandstone aquifer.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table D2 - Groundwater quality triggers Mining area Monitoring bore pH Triggersa EC Triggersb (pH units) (-S/cm) Dunn Creek DC01 6.56 - 6.94 7,104 Trap Gully 6.78 - 7.40 5,662 DC02 6.68 - 6.90 2,407 DC040C 6.67 - 7.19 1,429 DC040P 6.38 - 6.72 1,744 6.68 - 7.17 1,753 TG01 TBA C0507663 TBA 1,780 6.27 - 6.90 MB06 MB07 MB15 5.96 - 6.87 1,189 MB16 5.70 - 6.75 1,701 MB20 TBA TBA MB23 6.50 - 7.05 1,793 MB25 TBA TBA Boundary Hill MB26 6.02 - 6.41 1,638 MB27 5.88 - 6.69 2,142 MB28 5.44 - 6.61 6,843 MB29 4.46 - 6.06 928 R3038 6.08 - 6.87 1,689 R3055 6.65 - 7.09 2,232 R3070 6.25 - 6.85 1,296 R3072 6.68 - 7.67 2,012 R3076 6.49 - 7.06 1,668 R3079 6.67 - 7.12 3,554 R3084 6.62 - 7.13 1,305 Notes: a) Acceptable pH range. For the purpose of condition D7 an exceedance is 3 consecutive results above the acceptable pH range or 3 consecutive results below the acceptable pH range. b) Maximum EC value.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table D3 - Groundwater level trigger thresholds Monitoring Site ID Groundwater Level trigger Trigger basis threshold1 1900 253.00 Nominal elevation 0.2m DC040C 248.54 above base of bore6 TG01 214.40 2023 Groundwater model5 TG02 197.31 Nominal elevation 0.2m above base of bore6 HUT01 340.60 HUT03 219.68 Generic 5m drawdown MB36 312.52 trigger3 BH01 197.22 Generic 5m drawdown C0507663 183.16 trigger2 BH_MB01 181.50 2023 Groundwater model4 MB07 229.96 MB15 211.89 Generic 5m drawdown MB23 195.87 trigger3 MB27 296.35 R3076 Generic 5m drawdown R3084 195.00 trigger2 BHE_VWP01 200.15 2023 Groundwater model4 MB29 Not applicable Nominal elevation 0.2m Notes: 197.38 above base of bore6 2023 Groundwater model4 Generic 5m drawdown trigger2 2023 Groundwater model4 Generic 5m drawdown trigger3 2023 Groundwater model7 2023 Groundwater model5 For observation purposes only 2023 Groundwater model5 1 Proposed level trigger thresholds are a minimum value presented in metres above reduced/relative level (m RL). 2 Trigger level calculated by the environmental authority holder by applying a generic 5m drawdown trigger threshold to observed groundwater levels. 3 Trigger level calculated by the administering authority by applying a 5m drawdown trigger threshold to average observed groundwater levels. 4 Trigger level calculated by the environmental authority holder based on 2023 groundwater model. 5 Trigger level calculated by the administering authority based on 2023 groundwater model with no correction factor applied. 6 Trigger level calculated by the administering authority to be set above the base of the bore. 7 Trigger level calculated by the administering authority via manual adjustment of model prediction hydrograph/extrapolation of observed groundwater levels.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule E - Acoustic Condition Condition number E1 Noise Nuisance Noise from the mining activity must not cause an environmental nuisance at any sensitive place. E2 When requested by the administering authority, noise monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised officer) of environmental nuisance at any sensitive place, and the results must be notified within ten (10) business days to the administering authority following completion of monitoring. E3 The method of measurement and reporting of noise levels must comply with the latest edition of the administering authority's `Noise Measurement Manual'. E4 Airblast overpressure and ground vibration from the mining activity must not cause an environmental nuisance at any sensitive place. E5 When requested by the administering authority, airblast overpressure and ground vibration monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised officer) of environmental nuisance at any sensitive place, and the results must be notified within ten (10) business days to the administering authority following completion of monitoring. E6 Monitoring required by condition E5 must include: (a) location of the blast/s within the mining area (including which bench level); (b) atmospheric conditions including temperature, relative humidity and wind speed and direction; and (c) location, date and time of recording.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table E1 - Blasting noise limits Blasting noise limits at any sensitive place or commercial place Monday to Saturday Sundays and Public Holidays All days 9.00am - 5.00pm 9.00am-5.00pm 5.00pm-9.00am All mining areas: At The Hut mining area only: Airblast Maximum air blast All blasts permitted. No blasting overpressure overpressure level (linear peak) all blasts in any given All other mining areas: 12-month period: (a) interburden and coal blasts (a) less than 115 dBL for only and no overburden blasts 90% of blasts; and permitted. (b) 115 to 120 dBL for 9% of (b) Maximum air blast blasts; and overpressure level (linear peak) all blasts in any given (c) 120 to 125 dBL for 1% of 12-month period: blasts. (i) Less than 115 dBL for 90% of blasts; (ii) 115 to 120 dBL for 9% of blasts; and (iii) 120 to 125 dBL for 1% of blasts. 5mm/s peak particle velocity The Hut Mining Area: for any four (4) out of five (5) consecutive blasts and a (a) All blasts permitted. maximum of 10 mm/s. (b) Vibration limits: 10mm/s peak Ground vibration particle velocity for any 4 out of No blasting peak particle 5 consecutive blasts and a velocity maximum of 10 mm/s. Other Mining Areas: (a) Interburden and coal blasts only. No overburden blasts permitted. Note: The method of measurement and reporting of vibration levels must comply with the latest edition of the administering authority's vibration and air blast overpressure monitoring guideline.

Permit Environmental authority EPML00720413 - Callide Coal Mine E7 If it can be demonstrated to the administering authority that an exceedance of the limits defined in Table E1 - Blasting noise limits is caused by activities other than mining activities the administering authority may determine that the holder is not in breach of condition E4. E8 If monitoring indicates an exceedance of the relevant limits in Table E1 - Blasting noise limits, then the environmental authority holder must: (a) address any noise complaint received, including the use of appropriate dispute resolution if required; or (b) immediately implement air blast overpressure and/or vibration abatement measures so that air blast overpressure and/or vibration from the activity does not result in further environmental nuisance.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule F - Land Condition Condition number F1 All land disturbed by mining activities must be rehabilitated in a manner that ensures it is: (a) safe for humans and wildlife; (b) stable; (c) able to sustain vegetation; and (d) non-polluting. F2 Rehabilitation Management Plan A Rehabilitation Management Plan must be developed by a suitably qualified person and implemented for all areas disturbed by mining activities by 30 November 2020. The Rehabilitation Management Plan must: (a) be reviewed every three (3) years; and (b) identify milestones for mine closure. F3 At a minimum the Rehabilitation Management plan must include: (a) map existing areas of rehabilitation including classification of stage (i.e. time since establishment) and quality; (b) a strategy for progressive rehabilitation; (c) detail the design objectives for rehabilitation of each domain to achieve rehabilitation success criteria and the identified post mining land uses; (d) specify spoil characteristics, soil analysis, soil separation for use on rehabilitation; (e) specify the topsoil requirements for the site and provide details of how topsoil will be managed for use in rehabilitation; (f) detail any topsoil deficit and how any deficit will be managed for successful rehabilitation, including, if applicable, the proposal of surrogate growth media; (g) detail rehabilitation methods applied to areas; (h) detail landform design including end of mine design; (i) detail how landform design will be consistent with surrounding topography; (j) identify and detail planned native vegetation rehabilitation areas and corridors; (k) identify at least a minimum of three (3) reference sites for use in rehabilitation monitoring; (l) describe rehabilitation indicators and how these will be monitored; (m) describe management actions to address unsuccessful rehabilitation or redesign; (n) describe end of mine landform design planning and post mining land uses across the mine; and include a triple bottom line assessment (or a comparative alternative assessment method) of the proposed final landform design criteria and alternatives.

Permit Environmental authority EPML00720413 - Callide Coal Mine F5 Rehabilitation requirements - All mining areas (Boundary Hill, Dunn Creek, Trap Gully, The Hut, The Bluff and Boundary Hill South) Rehabilitation must commence progressively as soon as areas become available. F6 Rehabilitation requirements - All mining areas (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) All areas significantly disturbed by the Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas must be rehabilitated to the final land description as defined in: (a) Table F1 - Final land use capability and projective area (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); (b) Table F2 - Final landform design criteria (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); and (c) The acceptance criteria stated in "Callide Mine Report on Rehabilitation Acceptance (Completion) Criteria", Barcode C1554627, December 2003. Southern Pits Table F1 - Final land use capability and projective area schedule (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) Boundary Hill Tenure ID: Mining leases 5632, 5641, 5662, 5653, Tenure ID: Mining leases 5655, 6994, 80115, 80107, 5654, 80093, 6993, 80030, 80092, 80118, 80117, 80151, 80186 80122 Post Mine land capability Projective surface area Post mine land capability Projective surface area (ha) classification (ha) classification 4 100 4 64 5 6.9 5 0 6 239.4 6 360 7 2,203.70 7 567 8 2,028.70 8 173

Permit Environmental authority EPML00720413 - Callide Coal Mine Table F2 - Final landform design criteria (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) Disturbance type Slope Drainage Dragline and pre-strip soil Overall slope angle of 15% on outer Graded banks at 10m vertical intervals (except Dunn Creek A slopes. (approx. every 60m along the slope). and S Cut spoil) - outer slopes Dunn Creek A & S Cut Overall slope angle of 25%, 120m Berms or graded banks at 120m spacing spoil - outer slopes slope length, basalt mulch cladding. along the slope. Internal slopes Generally, 15% or flatter. Graded banks at 10m vertical intervals Trial slopes From 15% to 25% with topsoil or Graded banks at 10m vertical intervals. basalt mulch cladding. Cut off drain/diversion bund across top of Up to 37% (angle of repose). slope

Permit Environmental authority EPML00720413 - Callide Coal Mine F7 Areas which are to be progressively rehabilitated to native ecosystem must comply with the following outcomes: (a) all areas disturbed by mining activities must be rehabilitated to the landform design criteria defined in Table F2 - Final landform design criteria (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); and (b) landforms are stable with erosion comparable and similar to analogue sites. F8 Residual voids must comply with the following outcomes: (a) residual voids must not cause any serious environmental harm to land, surface waters or any recognised ground water aquifer, other than the environmental harm constituted by the existence of the residual void itself, and subject to any other condition within this environmental authority; and (b) residual voids must comply with Table F3 - Residual void design outcomes (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas); and (c) notwithstanding condition F1, residual void areas - including high walls, low walls, end walls, ramps and ramp slopes and void water bodies - for the Boundary Hill (excluding Boundary Hill South), Dunn Creek, Trap Gully, The Hut and The Bluff must meet the acceptance criteria stated in the "Callide Mine Report on Completion Criteria for Residual Voids", December 2005 (with the exception of the criterion relating to submerged low walls and ramps); and as such are considered to be non-use management areas (NUMAs). F9 Rehabilitation requirements - Boundary Hill South Mining Area (a) Land disturbed within the Boundary Hill South Mining Area must be rehabilitated in accordance with Appendix 1 - Rehabilitation requirements (Boundary Hill South Mining Area) and Appendix 2, Figure 2 - Boundary Hill South Mining Area conceptual final landform; and (b) The Boundary Hill South residual void NUMA must not exceed a maximum residual void NUMA area of 147.4ha; and (c) The Boundary Hill South residual void NUMA is authorised at the location and to the extent shown in Appendix 2, Figure 2 - Boundary Hill South Mining Area conceptual final landform.

Permit Environmental authority EPML00720413 - Callide Coal Mine Void Table F3 - Residual void design outcomes Identification (Boundary Hill, Dunn Creek, Trap Gully, The Hut and The Bluff Mining Areas) High wall Configuration Low wall 75- slope angle. Ramp Spoil Safety bunds will be constructed along the top of the high walls and along the crest of the pre-strip benches. The pre-strip benches will be shaped to shed runoff over the high wall at several locations to limit erosion. Generally at angle of repose. Generally at angle of repose. F10 Contaminated land Before applying for surrender of a mining lease, the holder must (if applicable) provide to the administering authority a site investigation report under the Environmental Protection Act 1994 in relation to any part of the mining lease which has been used for notifiable activities or which the holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of that report to ensure that the land is suitable for its final land use. F11 Before applying for progressive rehabilitation certification for an area, the holder must (if applicable) provide to the administering authority a site investigation report under the Environmental Protection Act 1994, in relation to any part of the area the subject of the application which has been used for notifiable activities or which the holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of that report to ensure that the land is suitable for its final land use under conditions of this schedule relating to final land use. F12 Minimise the potential for contamination of land by hazardous contaminants.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule G - Regulated Structures Condition Condition number G1 Assessment of consequence category The consequence category of any structure must be assessed by a suitably qualified and experienced person in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) at the following times: (a) prior to the design and construction of the structure, if it is not an existing structure; or (b) prior to any change in its purpose or the nature of its stored contents. G2 A consequence assessment report and certification must be prepared for each structure assessed and the report may include a consequence assessment for more than one structure. G3 Certification must be provided by the suitably qualified and experienced person who undertook the assessment, in the form set out in the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635). G4 Design and construction of a regulated structure Conditions G5 to G9 inclusive do not apply to existing structures. G5 All regulated structures must be designed by, and constructed under the supervision of, a suitably qualified and experienced person in accordance with the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635). G6 Construction of a regulated structure is prohibited unless the environmental authority holder has submitted a consequence category assessment report and certification to the administering authority has been certified by a suitably qualified and experienced person for the design and design plan and the associated operating procedures in compliance with the relevant condition of this environmental authority. G7 Certification must be provided by the suitably qualified and experienced person who oversees the preparation of the design plan in the form set out in the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) and must be recorded in the Register of Regulated Structures.

Permit Environmental authority EPML00720413 - Callide Coal Mine G8 Regulated structures must: (a) be designed and constructed in accordance with and conform to the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635); (b) be designed and constructed with due consideration given to ensuring that the design integrity would not be compromised on account of: (i) floodwaters from entering the regulated dam from any watercourse or drainage line; and (ii) wall failure due to erosion by floodwaters arising from any watercourse or drainage line; (c) have the floor and sides of the dam designed and constructed to prevent or minimise the passage of the wetting front and any entrained contaminants through either the floor or sides of the dam during the operational life of the dam and for any period of decommissioning and rehabilitation of the dam. G9 Certification by the suitably qualified and experienced person who supervises the construction must be submitted to the administering authority on the completion of construction of the regulated structure, and state that: (a) the 'as constructed' drawings and specifications meet the original intent of the design plan for that regulated structure; and (b) construction of the regulated structure is in accordance with the design plan. G10 Operation of a regulated structure Operation of a regulated structure, except for an existing structure, is prohibited unless the environmental authority holder has submitted to the administering authority: (a) one paper copy and one electronic copy of the design plan and certification of the `design plan' in accordance with condition G7; and (b) a set of `as constructed' drawings and specifications; and (c) certification of those `as constructed drawings and specifications' in accordance with condition G9; and (d) where the regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the Design Storage Allowance (DSA) volume across the system, a copy of the certified system design plan; and (e) the requirements of this environmental authority relating to the construction of the regulated structure have been met; and (f) the environmental authority holder has entered the details required under this environmental authority, into a Register of Regulated Structures; and (g) there is a current operational plan for the regulated structures.

Permit Environmental authority EPML00720413 - Callide Coal Mine G11 For existing structures that are regulated structures: (a) where the existing structure that is a regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the DSA volume across the system, the holder must submit to the administering authority a copy of the certified design plan including that structure; and (b) there must be a current operational plan for the existing structure. G12 Each regulated structure must be maintained and operated, for the duration of its operational life until decommissioned and rehabilitated, in a manner that is consistent with the current operational plan and, if applicable, the current design plan and associated certified `as constructed' drawings. G13 Mandatory reporting level Conditions G14 to G17 inclusive only apply to regulated structures which have not been certified as low consequence category for `failure to contain - overtopping'. G14 The Mandatory Reporting Level (MRL) must be marked on a regulated dam in such a way that during routine inspections of that dam, it is clearly observable. G15 The environmental authority holder must, as soon as practical and within forty-eight (48) hours of becoming aware, notify the administering authority when the level of the contents of a regulated dam reaches the MRL. G16 The environmental authority holder must, immediately on becoming aware that the MRL has been reached, act to prevent the occurrence of any unauthorised discharge from the regulated dam. G17 The environmental authority holder must record any changes to the MRL in the Register of Regulated Structures. G18 Design storage allowance The environmental authority holder must assess the performance of each regulated dam or linked containment system over the preceding November to May period based on actual observations of the available storage in each regulated dam or linked containment system taken prior to 1 July of each year. G19 By 1 November of each year, storage capacity must be available in each regulated dam (or network of linked containment systems with a shared DSA volume), to meet the DSA volume for the dam (or network of linked containment systems). G20 The environmental authority holder must, as soon as possible and within forty-eight (48) hours of becoming aware that the regulated dam (or network of linked containment systems) will not have the available storage to meet the DSA volume on 1 November of any year, notify the administering authority.

Permit Environmental authority EPML00720413 - Callide Coal Mine G21 The environmental authority holder must, immediately on becoming aware that a regulated dam (or network of linked containment systems) will not have the available storage to meet the DSA volume on 1 November of any year, act to prevent the occurrence of any unauthorised discharge from the regulated dam or linked containment systems. G22 Annual inspection report Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person. G23 At each annual inspection, the condition and adequacy of all components of the regulated structure must be assessed and a suitably qualified and experienced person must prepare an annual inspection report containing details of the assessment and include recommended actions to ensure the integrity of the regulated structure. G24 The suitably qualified and experienced person who prepared the annual inspection report must certify the report in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635). G25 The environmental authority holder must within twenty (20) business days of receipt of the annual inspection report, provide to the administering authority: (i) the recommendations section of the annual inspection report; (ii) if applicable, any actions being taken in response to those recommendations. G26 Transfer arrangements The environmental authority holder must provide a copy of any reports, documentation and certifications prepared under this environmental authority, including but not limited to any Register of Regulated Structures, consequence assessment, design plan and other supporting documentation, to a new holder on transfer of this environmental authority. G27 Register of Regulated Structures A Register of Regulated Structures must be established and maintained by the environmental authority holder for each regulated structure. G28 The environmental authority holder must provisionally enter the required information in the Register of Regulated Structures when a design plan for a regulated dam is submitted to the administering authority. G29 The environmental authority holder must make a final entry of the required information in the Register of Regulated Structures once compliance with condition G10 and G12 has been achieved. G30 The environmental authority holder must ensure that the information contained in the Register of Regulated Structures is current and complete on any given day. G31 All entries in the Register of Regulated Structures must be approved by the chief executive officer for the environmental authority holder, or their delegate, as being accurate and correct.

Permit Environmental authority EPML00720413 - Callide Coal Mine G32 The holder must, at the same time as providing the annual return, supply to the administering authority a copy of the records contained in the Register of Regulated Structures, in the electronic format required by the administering authority. G33 Transitional arrangements All existing structures that have not been assessed in accordance with either the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) or the former Manual for Assessing Hazard Categories and Hydraulic Performance of Dams must be assessed and certified in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635). G34 All existing structures must subsequently comply with the timetable for any further assessments in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) specified in Table G1 - Transitional requirements for existing structures, depending on the consequence category for each existing structure assessed in the most recent previous certification for that structure. G35 Table G1 - Transitional requirements for existing structures ceases to apply for a structure once any of the following events has occurred: (a) it has been brought into compliance with the hydraulic performance criteria applicable to the structure under the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635); or (b) it has been decommissioned; or (c) it has been certified as no longer being assessed as a regulated structure.

Permit Environmental authority EPML00720413 - Callide Coal Mine Table G1 - Transitional hydraulic performance requirements for existing structures Transition period required for existing structures to achieve the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Dams Compliance with High Significant Low criteria >90% and a history of No transition required No transition required No transitional conditions good compliance apply. performance in last 5 years Review consequence assessment every 7 years. >70%-90% Within 7 years, unless Within 10 years, unless No transitional conditions otherwise agreed with the otherwise agreed with the apply. administering authority, administering authority, based on no history of based on no history of Review consequence unauthorised releases. unauthorised releases. assessment every 7 years. 50-70% Within 5 years unless Within 7 years unless Review consequence otherwise agreed with the otherwise agreed with the assessment every 7 administering authority, administering authority, years. based on no history of based on no history of unauthorised releases. unauthorised releases. 50% Within 5 years or as per Within 5 years or as per Review consequence compliance requirements compliance requirements assessment every 5 (e.g. TEP timing) (e.g. TEP timing) years. G36 Certification of the transitional assessment required by G33 and G34 (as applicable) must be provided to the administering authority.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule H - Waste Condition Condition number H1 Storage of Tyres Tyres stored awaiting disposal or transport for take-back and, recycling, or waste-to-energy options, should be stockpiled in volumes less than 3m in height and 200 square metres in area and at least 10m from any other tyre storage area. H2 All reasonable and practicable fire prevention measures must be implemented, including removal of grass and other materials within a 10m radius of the scrap tyre storage area. H3 Disposing of scrap tyres resulting from the mining activities in spoil emplacements is acceptable, provided tyres are placed as deep in the spoil as possible but not directly on the pit floor. H4 Scrap tyres resulting from the mining activities disposed within the operational land must not impede saturated aquifers and compromise the stability of the consolidated landform. H5 Unless otherwise permitted by the conditions of this environmental authority or with prior approval from the administering authority and in accordance with a relevant standard operating procedure, waste must not be burnt. H6 The holder of this environmental authority may burn vegetation provided the activity does not cause environmental harm at any sensitive or commercial place.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule I - Sewage Treatment Condition Condition number I1 All effluent released from the sewage treatment plants at Dunn Creek and Boundary Hill must be monitored at end of pipe; at the location specified in Table I1 - Sewage effluent quality targets for irrigation; at the frequency specified in Table I1 - Sewage effluent quality targets for irrigation; and for the parameters specified in Table I1 - Sewage effluent quality targets for irrigation. Table I1 - Sewage effluent quality targets for irrigation Quality characteristics Release Units Limit type Monitoring frequency limit pH 6.0 to 9.0 - range Monthly Free Chlorine Residual 5 mg/L Max Monthly Faecal Coliforms, based on Colonies per 100 Max Monthly the average of a minimum of <10 millilitres five samples collected Total Nitrogen 60 mg/L Max Monthly Total Phosphorus 20 mg/L Max Monthly I2 Sewage effluent used for dust suppression or irrigation must not exceed sewage effluent release limits defined in Table I1 - Sewage effluent quality targets for irrigation. I3 Sewage effluent used for dust suppression or irrigation must not cause spray drift or over spray to any sensitive place. I4 Subject to conditions I1, I2 and I3, sewage effluent from sewage treatment facilities must be reused or evaporated and must not be directly released from the sewage treatment plant to any water way or drainage line.

Permit Environmental authority EPML00720413 - Callide Coal Mine Schedule J - Offsets Condition Condition number J1 Biodiversity offsets Significant residual impacts to prescribed environmental matters in the Boundary Hill South mining area are only authorised to occur under this environmental authority if the impacts: (a) are specified in Table J1 - Significant residual impacts to prescribed environmental matters (Boundary Hill South); (b) are no greater than the maximum extent of impact for each prescribed environmental matter specified in Table J1 - Significant residual impacts to prescribed environmental matters (Boundary Hill South); and (c) offsets are provided if required by the Boundary Hill South EPBC Act 1999 (Commonwealth) approval (EPBC 2012/6324). Table J1 - Significant residual impacts to prescribed environmental matters (Boundary Hill South) Prescribed environmental matters Maximum extent of Offset requirement under impact (ha) Environmental Offsets Act 2014 (Qld) Habitat for an animal that is vulnerable wildlife - 266 No Squatter Pigeon - Geophaps scripta scripta [1] Habitat for an animal that is vulnerable wildlife - 257 No Koala - Phascolarctos cinereus [1] Habitat for an animal that is vulnerable wildlife - South-eastern long-eared bat - Nyctophilus corbeni 224 No [1] Note: [1] These matters are addressed in the Environmental Protection and Biodiversity Conservation Act 1999 (EPBC) approval for Boundary Hill South (EPBC2012/6324). END OF CONDITIONS

Permit Environmental authority EPML00720413 - Callide Coal Mine 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. "administering authority" is the agency that administers the environmental authority provisions under the Environmental Protection Act 1994. "airblast overpressure" means energy transmitted from the blast site within the atmosphere in the form of pressure waves. The maximum excess pressure in this wave, above ambient pressure, is the peak airblast overpressure measured in decibels linear (dBL). "annual inspection report" means an assessment prepared by a suitably qualified and experienced person containing details of the assessment against the most recent consequence assessment report and design plan (or system design plan); a) against recommendations contained in previous annual inspections reports; b) against recognised dam safety deficiency indicators; c) for changes in circumstances potentially leading to a change in consequence category; d) for conformance with the conditions of this environmental authority; e) for conformance with the `as constructed' drawings; f) for the adequacy of the available storage in each regulated dam, based on an actual observation or observations taken after 31 May each year but prior to 1 November of that year, of accumulated sediment, state of the containment barrier and the level of liquids in the dam (or network of linked containment systems); and g) for evidence of conformance with the current operational plan. "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 "assessed" or "assess" or "assessment" by a suitably qualified and experienced person in relation to a consequence assessment of a dam, means that a statutory declaration has been made by that person and, when taken together with any attached or appended documents referenced in that declaration, all of the following aspects are addressed and are sufficient to allow an independent audit at any time: a) exactly what has been assessed and the precise nature of that assessment; b) the relevant legislative, regulatory and technical criteria on which the assessment has been based; c) the relevant data and facts on which the assessment has been based, the source of that material, and the efforts made to obtain all relevant data and facts; and d) the reasoning on which the assessment has been based using the relevant data and facts, and the relevant criteria. "background" with reference to Schedule C - Surface Water means the average of samples taken prior to the commencement of mining from the same waterway that the current sample has been taken. "blasting" means the use of explosive material to fracture: a) rock, coal and other minerals for later recovery; or b) structural components or other items to facilitate removal from a site or for reuse. "Boundary Hill" means mining leases ML5655, ML6994, ML80107, ML80115 and ML80151.

Permit Environmental authority EPML00720413 - Callide Coal Mine "Boundary Hill South Mining Area" means the mining area within ML80186. "certification" means assessment and approval must be undertaken by a suitably qualified and experienced person in relation to any assessment or documentation required by this Manual, including design plans, `as constructed' drawings and specifications, construction, operation or an annual report regarding regulated structures, undertaken in accordance with the Board of Professional Engineers of Queensland Policy Certification by RPEQs (ID: 1.4 (2A)). "certifying, certify or certified" have a corresponding meaning as `certification'. "chemical" means: a) an agricultural chemical product or veterinary chemical product within the meaning of the Agricultural and Veterinary Chemicals Code Act 1994 (Commonwealth); or b) a dangerous good under the Australian Code for the Transport of Dangerous Goods by Road and Rail approved by the Australian Transport Council; or c) a lead hazardous substance within the meaning of the Workplace Health and Safety Regulation 1997; or d) a drug or poison in the Standard for the Uniform Scheduling of Drugs and Poisons prepared by the Australian Health Ministers' Advisory Council and published by the Commonwealth; or e) any substance used as, or intended for use as: i) a pesticide, insecticide, fungicide, herbicide, rodenticide, nematicide, miticide, fumigant or related product; or ii) a surface active agent, including, for example, soap or related detergent; or iii) a paint solvent, pigment, dye, printing ink, industrial polish, adhesive, sealant, food additive, bleach, sanitiser, disinfectant, or biocide; or iv) a fertiliser for agricultural, horticultural or garden use; or v) a substance used for, or intended for use for mineral processing or treatment of metal, pulp and paper, textile, timber, water or waste water; or vi) manufacture of plastic or synthetic rubber. "commercial place" means a work place used as an office or for business or commercial purposes, which is not part of the mining activity and does not include employee accommodation or public roads. While the Non- residency Agreement between the environmental authority holder and the owner of Kilburnie Homestead is in effect, Kilburnie Homestead is not a commercial place for the purpose of this environmental authority. "construction" or "constructed" in relation to a regulated structure includes building a new regulated structure and lifting or otherwise modifying of an existing regulated structure, but does not include investigations and testing necessary for the purpose of preparing a design plan. "consequence" in relation to a structure as defined, means the potential for environmental harm resulting from the collapse or failure of the structure to perform its primary purpose of containing, diverting or controlling flowable substances. "consequence category" means a category, either low, significant or high, into which a dam is assessed as a result of the application of tables and other criteria in the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635). "dam" means a land-based structure or a void that contains, diverts or control flowable substances, and includes any substances that are thereby contained, diverted or controlled by that land-based structure or void and associated works.

Permit Environmental authority EPML00720413 - Callide Coal Mine "dam crest volume" means the volume of material (liquids and/or solids) that could be within the walls of a dam at any time when the upper level of that material is at the crest level of that dam. That is, the instantaneous maximum volume within the walls, without regard to flows entering or leaving (for example, via spillway). "design plan" is a document setting out how all identified consequence scenarios are addressed in the planned design and operation of a regulated structure. "design storage allowance" or "DSA" means an available volume, estimated in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) published by the administering authority, must be provided in a dam as at 1 November each year in order to prevent a discharge from that dam to an annual exceedance probability (AEP) specified in that Manual. "disturbance" of land includes: a) compacting, removing, covering, exposing or stockpiling of earth; b) removal or destruction of vegetation or topsoil or both to an extent where the land has been made susceptible to erosion; c) carrying out mining within a watercourse, waterway, wetland or lake; d) the submersion of areas by tailings or hazardous contaminant storage and dam/structure walls; e) temporary infrastructure, including any infrastructure (roads, tracks, bridges, culverts, dam/structures, bores, buildings, fixed machinery, hardstand areas, airstrips, helipads etc) which is to be removed after the mining activity has ceased; or f) releasing of contaminants into the soil, or underlying geological strata. However, the following areas are not included when calculating areas of `disturbance': a) areas off lease (e.g. roads or tracks which provide access to the mining lease); b) areas previously disturbed which have achieved the rehabilitation outcomes; c) by agreement with the administering authority, areas previously disturbed which have not achieved the rehabilitation objective(s) due to circumstances beyond the control of the mine operator (such as climatic conditions); d) areas under permanent infrastructure. Permanent infrastructure includes any infrastructure (roads, tracks, bridges, culverts, dam/structures, bores, buildings, fixed machinery, hardstand areas, airstrips, helipads etc) which is to be left by agreement with the landowner. e) disturbance that pre-existed the grant of the tenure. "Dunn Creek" means mining leases ML5632, ML5641, ML80030, ML80092, ML80093, ML80118. "EC" means electrical conductivity. "effluent" treated waste water discharged from sewage treatment plants. "emergency action plan" means documentation forming part of the operational plan held by the holder or a nominated responsible officer, that identifies emergency conditions that sets out procedures and actions that will be followed and taken by the dam owner and operating personnel in the event of an emergency. The actions are to minimise the risk and consequences of failure, and ensure timely warning to downstream communities and the implementation of protection measures. The plan must require dam owners to annually update contact information. "ERC decision" means a decision made by the administering authority under section 300 of the Environmental Protection Act 1994 about the estimated rehabilitation cost for a resource activity. "ERC period for the estimated rehabilitation cost for a resource activity" means:

Permit Environmental authority EPML00720413 - Callide Coal Mine a) if a PRCP schedule applies for the activity, the period of between 1 and 5 years stated in the application for an ERC decision under section 298(2)(b); or b) if the activity is a petroleum activity that is an ineligible ERA, other than a petroleum activity to which a plan of operations applies, or the activity relates to a 1923 Act petroleum tenure granted under the Petroleum Act 1923, the period of between 1 and 5 years stated in the ERC decision about the estimated rehabilitation cost; or c) if a plan of operations applies for the activities, the plan period for the plan of operations; or d) otherwise, the total period during which the resource activity is likely to be carried out under the environmental authority for the activity. "Estimated rehabilitation cost or "ERC" for a resource activity, see section 300(2) of the Environmental Protection Act 1994. "existing structure" means a structure that was in existence prior to 21 February 2014. "flowable substance" means matter or a mixture of materials which can flow under any conditions potentially affecting that substance. Constituents of a flowable substance can include water, other liquids fluids or solids, or a mixture that includes water and any other liquids fluids or solids either in solution or suspension. "holder", for a mining tenement, means a holder of the tenement under the Mineral Resources Act 1989, and the holder of the associated environmental authority under the Environmental Protection Act 1994. "hydraulic performance" means the capacity of a regulated dam to contain or safely pass flowable substances based on the design criteria specified for the relevant consequence category in the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635). "infrastructure" means water storage dams, levees, roads and tracks, buildings and other structures built for the purpose of the mining activity. "Kilburnie Homestead" means the place located on Lot 77 on SP163782 and registered on the Queensland Heritage Register as the Kilbirnie Homestead with Place ID 600016. "land" in Schedule F - Land of this document means land excluding waters and the atmosphere, that is, the term has a different meaning from the term as defined in the Environmental Protection Act 1994. For the purposes of the Acts Interpretation Act 1954, it is expressly noted that the term `land' in this environmental authority relates to physical land and not to interests in land. "land use" means the selected post mining use of the land, which is planned to occur after the cessation of mining operations. "levee" means an embankment that only provides for the containment and diversion of stormwater or flood flows from a contributing catchment, or containment and diversion of flowable materials resulting from releases from other works, during the progress of those stormwater or flood flows or those releases; and does not store any significant volume of water or flowable substances at any other times. "m" means metres. "mandatory reporting level" or "MRL" means a warning and reporting level determined in accordance with the criteria in the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) published by the administering authority. "Manual" means the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) published by the administering authority. "matters of state environmental significance" or "MSES" has the meaning in schedule 2 of the Environmental Offsets Regulation 2014.

Permit Environmental authority EPML00720413 - Callide Coal Mine "maximum extent of impact" means the total, cumulative, residual extent and duration of impact to a prescribed environmental matter that will occur over a project's life after all reasonable avoidance and reasonable on-site mitigation measures have been, or will be, undertaken. "measures" includes any measures to prevent or minimise environmental impacts of the mining activity such as bunds, silt fences, diversion drains, capping, and containment systems. "mine affected water" means the following types of water: a) pit water, tailings dam water, processing plant water; b) water contaminated by a mining activity which would have been an environmentally relevant activity under Schedule 2 of the Environmental Protection Regulation 2008 if it had not formed part of the mining activity; c) rainfall runoff which has been in contact with any areas disturbed by mining activities which have not yet been rehabilitated, excluding rainfall runoff discharging through release points associated with erosion and sediment control structures that have been installed in accordance with the standards and requirements of an Erosion and Sediment Control Plan to manage such runoff, provided that this water has not been mixed with pit water, tailings dam water, processing plant water or workshop water; d) groundwater which has been in contact with any areas disturbed by mining activities which have not yet been rehabilitated; e) groundwater from the mine's dewatering activities; or f) a mix of mine affected water (under any of paragraphs a) - e) and other water. Does not include surface water runoff which, to the extent that it has been in contact with areas disturbed by mining activities that have not yet been completely rehabilitated, has only been in contact with: a) land that has been rehabilitated to a stable landform and either capped or revegetated in accordance with the acceptance criteria set out in the environmental authority but only still awaiting maintenance and monitoring of the rehabilitation over a specified period of time to demonstrate rehabilitation success; or b) land that has partially been rehabilitated and monitoring demonstrates the relevant part of the landform with which the water has been in contact does not cause environmental harm to waters or groundwater, for example: i) areas that have been capped and have monitoring data demonstrating hazardous material adequately contained with the site; ii) evidence provided through monitoring that the relevant surface water would have met the water quality parameters for mine affected water release limits in this environmental authority, if those parameters had been applicable to the surface water runoff; or c) both a) and b) above. "Mining activity / mining activities" means the following activities: a) authorised as per the definition of section 110 of the Environmental Protection Act 1994; b) all environmentally relevant activities authorised under this environmental authority; c) all mining disturbance including the construction of mining infrastructure, overburden removal and active mining; d) all activities carried out while the mine is not operational (i.e. care and maintenance status); e) exploration; and f) rehabilitation. "NATA" means National Association of Testing Authorities, Australia.

Permit Environmental authority EPML00720413 - Callide Coal Mine "natural flow" means the flow of water through waters caused by nature. "notice of election" has the meaning in section 18(2) of the Environmental Offsets Act 2014. "operational plan" includes: a) normal operating procedures and rules (including clear documentation and definition of process inputs in the DSA allowance); b) 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 regulated structure. "peak particle velocity" or "ppv" means a measure of ground vibration magnitude which is the maximum rate of change of ground displacement with time, usually measured in millimetres/second (mms). "prescribed environmental matter" has the same meaning as in section 10 of the Environmental Offsets Act 2014, limited to the matters of State environmental significance listed in schedule 2 of the Environmental Offsets Regulation 2014. "receiving environment" in relation to an activity that causes or may cause environmental harm, means the part of the environment to which the harm is, or may be, caused. The receiving environment includes (but is not limited to): a) a watercourse; b) groundwater; and c) an area of land that is not specified as operational land of this environmental authority. "receiving waters" means the waters into which this environmental authority authorises releases of mine affected water. "Register of Regulated Structures" includes: a) date of entry in the register; b) name of the dam, its purpose and intended/actual contents; c) the consequence category of the dam as assessed using the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635); d) dates, names, and reference for the design plan plus dates, names, and reference numbers of all document(s) lodged as part of a design plan for the dam; e) name and qualifications of the suitably qualified and experienced person who certified the design plan and 'as constructed' drawings; f) for the regulated dam, other than in relation to any levees: i) the dimensions (metres) and surface area (hectares) of the dam measured at the footprint of the dam; ii) coordinates (latitude and longitude in GDA94) within five metres at any point from the outside of the dam including its storage area iii) dam crest volume (megalitres); iv) spillway crest level (metres AHD). v) maximum operating level (metres AHD); vi) storage rating table of stored volume versus level (metres AHD); vii) design storage allowance (megalitres) and associated level of the dam (metres AHD);

Permit Environmental authority EPML00720413 - Callide Coal Mine viii) mandatory reporting level (metres AHD); g) the design plan title and reference relevant to the dam; h) the date construction was certified as compliant with the design plan; i) the name and details of the suitably qualified and experienced person who certified that the constructed dam was compliant with the design plan; j) details of the composition and construction of any liner; k) the system for the detection of any leakage through the floor and sides of the dam; l) dates when the regulated dam underwent an annual inspection for structural and operational adequacy, and to ascertain the available storage volume for 1 November of any year; m) dates when recommendations and actions arising from the annual inspection were provided to the administering authority; and n) dam water quality as obtained from any monitoring required under this environmental authority as at 1 November of each year. "regulated dam" means any dam in the significant or high consequence category as assessed using the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635) published by the administering authority. "regulated structure" includes land-based containment structures, levees, bunds and voids, but not a tank or container designed and constructed to an Australian Standard that deals with strength and structural integrity. "rehabilitation" means the process of reshaping and revegetating land to restore it to a stable landform and in accordance with the acceptance criteria set out in this environmental authority and, where relevant, includes remediation of contaminated land. "release event" means a surface water discharge from mine affected water storages or contaminated areas on the licensed place. "RL" means reduced level, relative to mean sea level as distinct from depths to water. "secondary containment system" means a system designed, installed and operated to prevent any release of contaminants from the system, or containers within the system, to land, groundwater, or surface waters. "sensitive place" means: a) a dwelling, residential allotment, mobile home or caravan park, residential marina or other residential premises; or b) a motel, hotel or hostel; or c) an educational institution; or d) a medical centre or hospital; or e) a protected area under the Nature Conservation Act 1992, the Marine Parks Act 2004 or a World Heritage Area; or f) a public park or gardens. Note: The definition of `sensitive place' and `commercial place' is based on Schedule 1 of EPP Noise. That is, a sensitive place is inside or outside of a dwelling, library & educational institution, childcare or kindergarten, school or playground, hospital, surgery or other medical institution, commercial & retail activity, protected area or an area identified under a conservation plan under Nature conservation Act 1992 as a critical habitat or an area of major interest, marine park under Marine Parks Act 2004, park or garden that is outside of the mining

Permit Environmental authority EPML00720413 - Callide Coal Mine lease and open to the public for use other than for sport or organised entertainment. A commercial place is inside or outside a commercial or retail activity. A mining camp (i.e., accommodation and ancillary facilities for mine employees or contractors or both, associated with the mine the subject of the environmental authority) is not a sensitive place for that mine or mining project, whether or not the mining camp is located within a mining tenement that is part of the mining project the subject of the environmental authority. For example, the mining camp might be located on neighbouring land owned or leased by the same company as one of the holders of the environmental authority for the mining project, or a related company. Accommodation for mine employees or contractors is not a sensitive place if the land is held by a mining company or related company, and if occupation is restricted to the employees, contractors and their families for the particular mine or mines which are held by the same company or a related company. For example, a township (occupied by the mine employees, contractors and their families for multiple mines that are held by different companies) would be a sensitive place, even if part or all of the township is constructed on land owned by one or more of the companies. "significant residual impacts" has the same meaning given in the Environmental Offsets Act 2014. "spillway" means a weir, channel, conduit, tunnel, gate or other structure designed to permit discharges from the dam, normally under flood conditions or in anticipation of flood conditions. "suitably qualified and experienced person" in relation to regulated structures means a person who is a Registered Professional Engineer of Queensland (RPEQ) under the provisions of the Professional Engineers Act 2002, and has demonstrated competency and relevant experience: a) for regulated dams, an RPEQ who is a civil engineer with the required qualifications in dam safety and dam design; and b) for regulated levees, an RPEQ who is a civil engineer with the required qualifications in the design of flood protection embankments. Note: It is permissible that a suitably qualified and experienced person obtain subsidiary certification from an RPEQ who has demonstrated competence and relevant experience in either geomechanics, hydraulic design or engineering hydrology. "The Bluff" means mining lease ML6993. "The Hut" means mining lease ML5654. "Trap Gully" means mining leases ML80122, ML80117, ML5653, ML5662 and ML700059. "void" means any constructed, open excavation in the ground. "-S/cm" means microsiemens per centimetre. "watercourse" has the same meaning given in the Water Act 2000. "water quality" means the chemical, physical and biological condition of water. "waters" includes river, stream, lake, lagoon, pond, swamp, wetland, unconfined surface water, unconfined natural or artificial watercourse, bed and bank of any waters, dams, non-tidal or tidal waters (including the sea), storm water channel, storm water drain, and groundwater and any part thereof. END OF DEFINITIONS

Permit Environmental authority EPML00720413 - Callide Coal Mine Appendices Appendix 1 - Rehabilitation requirements (Boundary Hill South Mining Area) Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Residual void Long term The site is Safety assessment Certification by an area (Non-use safety structurally safe and of landform stability appropriately qualified management the environment is (geotechnical person in the area shown in not exposed to studies). Rehabilitation Report Appendix 2, contamination by that slopes are now safe Figure 2 - heavy metals or and exhibit Boundary Hill other toxic materials. characteristics for long South term stability. conceptual final A risk assessment has landform) been completed and risk mitigation measures have been implemented. Where risk mitigation measures include bunds, safety fences and warning signs, these have been erected in accordance with relevant guidelines and Australian Standards. Landform design meets the requirements of Appendix 2, Figure 2 - Boundary Hill South conceptual final landform of this environmental authority. Encapsulation Certification by an depth and appropriately qualified containment of person that the potentially Rehabilitation Report contaminating includes predictions material. about future changes and that the specified cover thickness is in place.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Evidence in the Rehabilitation Report that monitoring results for dust and particulate matter indicates compliance with the limits in the environmental authority. Results of site Evidence in the contaminated land Rehabilitation Report investigation report. that measures required in site contaminated land investigation report have been implemented. Evidence of stream Evidence in the bank erosion. Rehabilitation Report that creek diversions are stable at closure and exhibit characteristics for long term stability. Site is safe for Safety assessment An appropriately humans and animals of landform stability qualified person certifies now and in the (geotechnical the long-term foreseeable future. studies). geotechnical stability of the residual slopes and faces in the voids and evidence of this is documented in the Rehabilitation Report. Adequacy and Evidence in the predicted long-term Rehabilitation Report performance of that a safety risk safety barriers. assessment of the residual void areas has been completed and proposed mitigation measures are documented in a Safety Plan.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives No receiving Installation of safety If required, mitigation waters are barriers and measures documented contaminated. human/wildlife in a Safety Plan, e.g. exclusion fencing of fencing or other suitable residual void. barrier around the residual void areas are installed to restrict access. Mine affected water Downstream Certification by an is contained on site. surface water appropriately qualified quality parameters person that surface stated in the water quality at project's monitoring locations is environmental not negatively impacted authority. when trends indicated by results from baseline monitoring and the 5 years previous to mine closure are compared to monitoring results for the rehabilitated landform. Groundwater Certification by an quality parameters appropriately qualified stated in the person that groundwater project's quality at monitoring environmental locations is not authority. negatively impacted when trends indicated by results from baseline monitoring and the 5 years previous to mine closure are compared to monitoring results for the rehabilitated landform. Receiving water affected by surface water runoff has contaminant limits in accordance with the environmental authority.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives All permanent Approved design Certification by an stream diversion will criteria. appropriately qualified meet approved person that all stream design criteria. diversions have been constructed and are operating in accordance with approved design criteria. All permanent Approved design The regulated structures regulated structures criteria. are certified by a will meet approved suitably qualified and design criteria. experienced person. All non-permanent The number and Regulated structures are regulated structures condition of non- decommissioned in are decommissioned permanent accordance with the appropriately. regulated administering authority structures. requirements. Residual voids Flood protection Certification by a protected from measures suitably qualified and flooding. constructed around experienced person in residual voids. the Rehabilitation Report that the residual voids have an adequate protection system to prevent inundation from a 1: 1,000 year annual exceedance probability flood event. Diversion design and Whether or not a Confirmation in writing maintenance. water licence under from the administering the Water Act 2000 authority that the water (QLD) is required. licence under the Water Act 2000 (QLD) is no longer required.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Stable landform Very low probability The number of rock Evidence in the of rock falls with falls during the life Rehabilitation Report serious of the mine. that the number of rock environmental falls has been consequences. acceptably low, and that appropriate control measures are in place to prevent rock falls with serious environmental consequences in the future. Stable landform Landform design Slope angle and Evidence in the (cont.) achieves appropriate length. Rehabilitation Report erosion rates. that the rehabilitated slopes have been designed to the specifications outlined in Appendix 2, Figure 2 - Boundary Hill South final landform of this environmental authority. Engineered Evidence in the structures to control Rehabilitation Report water flow. that required contour banks, channel linings, surface armour, engineered drop structures and other required measures are in place and functioning.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Rates of soil loss. Certification by an appropriately qualified person that land disturbed by mining activities does not exhibit any signs of continued erosion greater than that exhibited at a comparable reference site. The comparable reference site must have similar chemical and physical characteristics including slope as the rehabilitated landform. Dimensions and Evidence in the frequency of Rehabilitation Report occurrence of that the dimensions and erosion of rills and frequency of occurrence gullies. of erosion rills and gullies are no greater than that in comparable reference site(s). The diversions and Design and stability Documentation in the run-off drainage lines of drainage Rehabilitation Report mirror natural stream diversions. how drainage diversions functions. have changed over the life of mine and that they are stable at closure and are likely to remain that way into the foreseeable future.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Mining infrastructure To be designed and area constructed in accordance with the Queensland Government Natural Resources and Mines, Central West Water Management and Use Regional Guideline: Watercourse Diversions- Central Queensland Mining Industry (2008) and with consideration of contemporary research, i.e. the ACARP report Maintenance of Geomorphic Processes in Bowen Basin River diversions (Project number C8030-C9068). Stable landform Very low probability Geotechnical Evidence in the (cont.) of rock falls with studies. Rehabilitation Report serious that a risk assessment environmental has been done and consequences. mitigation measures (if any) have been documented and implemented. Long term Rehabilitation or Number of non- Certification by an safety conversion of artesian exploration appropriately qualified exploration drill holes drill holes on the person that all non- and groundwater mining lease that artesian exploration drill monitoring bored. have been, or have holes that are not not been, converted to either a rehabilitated or water bore or a converted to water groundwater monitoring bores. bore have been rehabilitated.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Certification by an appropriately qualified person, that all sub- artesian aquifers have been isolated where non-artesian exploration drill holes have intersected more than one sub-artesian water bearing strata, in accordance with Minimum Construction Requirements for Water Bores in Australia (Australian Government February 2012) or latest edition Certification by an appropriately qualified person that all non- artesian exploration drill holes converted to a water bore have been converted in accordance with the Minimum Construction Requirements for Water Bores in Australia (Australian Government February 2012) or latest edition. Certification by an appropriately qualified person that all non- artesian exploration drill holes converted to water bores are compliant with the Water Act 2000 (QLD).

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Number of Certification by an monitoring bores on appropriately qualified the mining lease person that all that have been, or monitoring bores have have not been, been rehabilitated in rehabilitated. accordance with the Minimum Construction Requirements for Water Bores in Australia (Australian Government February 2012) or latest edition. Structurally safe with Safety assessment Certification by an no hazardous of landform stability appropriately qualified materials. (geotechnical person in the studies). Rehabilitation Report that slopes are now safe and exhibit characteristics for long term stability. A risk assessment has been completed and risk mitigation measures have been implemented. Where risk mitigation measures include bunds, safety fences and warning signs, these have been erected in accordance with relevant guidelines and Australian Standards

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Landform design meets the requirements of Section 4.5 Land and rehabilitation in the Boundary Hill South Environmental Management Plan (December 2016) and Appendix 2, Figure 2 - Boundary Hill South final landform of this environmental authority. Site is safe for The presence on Certification by an humans and animals site of infrastructure appropriately qualified now and in the that requires person in the site foreseeable future. decommissioning. Rehabilitation Report that the infrastructure has been decommissioned and rehabilitated. Buildings, water storage(s), roads (except those used by the public) and other infrastructure have been removed unless stakeholders have entered into formal written agreements for their retention. Access to the area is conducive of the intended purpose of the post-mining land use including pastoral farming.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Certification by an No receiving Mine affected water Downstream appropriately qualified waters are is contained on site. surface water person that surface contaminated. quality parameters water quality at stated in the monitoring locations is project's not negatively impacted environmental when trends indicated authority. by results from baseline monitoring and the 5 Groundwater years previous to mine quality parameters closure are compared to stated in the monitoring results for the project's rehabilitated landform. environmental authority. Certification by an appropriately qualified All permanent Approved design person that groundwater stream diversion will criteria. quality at monitoring meet approved locations is not design criteria. negatively impacted when trends indicated by results from baseline monitoring and the 5 years previous to mine closure are compared to monitoring results for the rehabilitated landform. Receiving water affected by surface water runoff has contaminant limits in accordance with the environmental authority. Certification by an appropriately qualified person that all stream diversions have been constructed and are operating in accordance with approved design criteria.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives No receiving All permanent Approved design The regulated structures waters are regulated structures criteria. are certified by a contaminated. will meet approved suitably qualified and (cont.) design criteria. experienced person. All non-permanent The number and Regulated structures are regulated structures condition of non- decommissioned in decommissioned permanent accordance with the appropriately. regulated structures administering authority requirements. Containment or Hazardous materials Encapsulation Certification by an removal of any are adequately depth, and appropriately qualified potential managed, and the containment of person that the sources of environment is not potentially Rehabilitation Report contamination. exposed to contaminating includes predictions contamination by material. about future changes heavy metals or and that the specified other toxic materials. cover thickness is in place. Evidence in the Rehabilitation Report that monitoring results for dust and particulate matter indicates compliance with the limits in the environmental authority. The site is free of Results of site Evidence in the material other than contaminated land Rehabilitation Report waste rock that could investigation report. that measures required contaminate the in site contaminated land. land investigation report have been implemented.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives The final Landform design Slope angle and Evidence in the landform is achieves appropriate length. Rehabilitation Report stable erosion rates. that the rehabilitated slopes have been designed to the specifications outlined in Section 4.5 Land and rehabilitation in the Boundary Hill South Environmental Management Plan (December 2016) and Appendix 2, Figure 2 - Boundary Hill South conceptual final landform of this environmental authority. Engineered Evidence in the structures to control Rehabilitation Report water flow. that required contour banks, channel linings, surface armour, engineered drop structures and other required measures are in place and functioning. Rates of soil loss. Certification by an appropriately qualified person that land disturbed by mining activities does not exhibit any signs of continued erosion greater than that exhibited at a comparable reference site. The comparable reference site must have similar chemical and physical characteristics including slope as the rehabilitated landform.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Vegetation cover is Vegetation type and Evidence that the sufficient to form a density. vegetation type and self-sustaining density are of species community and suited to the site's minimise erosion. characteristics including soil type, topography and climate and that soil erosion meets the goals set in this plan. Vegetation type and Vegetation types and density. densities are comparable with the relevant reference site. Foliage cover. Minimum of 70% groundcover is present (or 50% if rocks, logs or other features are present). No bare surfaces >20m2 in area or >10m in length down slope. The diversions and Design and stability Documentation in the run-off drainage lines of drainage Rehabilitation Report will mirror natural stream diversions. show whether, and if so functions. how, drainage diversions have changed over the life of mine; that they are stable at closure; and are likely to remain stable into the foreseeable future.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Very low probability Demonstration that of rock falls with drainage diversions serious have been designed and environmental constructed in consequences. accordance with the Queensland Government Natural Resources and Mines, Central West Water Management and Use Regional Guideline: Watercourse Diversions- Central Queensland Mining Industry (2008) and with consideration of contemporary research, i.e. the ACARP report Maintenance of Geomorphic Processes in Bowen Basin River diversions (Project number C8030-C9068). Geotechnical Evidence in the studies. Rehabilitation Report that appropriate geotechnical risk assessment has been done and control measures put in place. The number of rock Evidence in the falls during the life Rehabilitation Report of the mine. that the number of rock falls has been acceptably low, and that appropriate control measures are in place to prevent rock falls with serious environmental consequences in the future.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Chemical properties Certification in the Sustainable Soil properties of the soil, including Rehabilitation Report land-use support the desired pH, salinity, nutrient that the topsoil chemical land-use. content, properties do not limit exchangeable the suitability of the land sodium percentage. for the intended land use and are consistent with the following: - soil salinity content is <0.6dS/m; - soil pH is between 5.5 and 8.5; - soil exchangeable sodium percentage (ESP) is <15%; - nutrient accumulation and recycling processes are occurring as evidenced by the presence of a litter layer, mycorrhizae and/or other microsymbionts; and - adequate macro- and micro-nutrients are present. Physical properties Certification in the of topsoil. Rehabilitation Report that the soil physical properties, e.g. rockiness, depth of soil, wetness and plant available water capacity are adequate for plant growth.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Topsoil thickness. Certification in the Rehabilitation Report of Site soil suitability for beef cattle characteristics. grazing land use in accordance with Department of Minerals and Energy (DME) 1995 Land Suitability Assessment Techniques in Technical Guidelines for the Environmental Management of Exploration and Mining. Certification in the Rehabilitation Report that topsoil has been respread according to the depths required in the Topsoil Management Plan. Certification in the Rehabilitation Report that the site's soil characteristics have acceptable levels of surface roughness, infiltration capacity, aggregate stability and surface condition as defined in the Australian Soil and Land Survey Field Handbook (National Committee on Soil and Terrain 2009).

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Establish self- Presence of key Certification by an sustaining natural plant species. appropriately qualified vegetation or habitat. person that key plant species identified in the comparable reference site occur on the rehabilitation site. The presence of key plant species may also be guided by future vegetation trials for rehabilitation. Establish self- Density of key plant Certification by an sustaining natural species. appropriately qualified vegetation or habitat. person that the density of key plant species in comparable reference sites is similar to the rehabilitation site. The density of key plant species may also be guided by future vegetation trials for rehabilitation. Structure of Certification by an vegetation habitat. appropriately qualified person that the structure of vegetation, i.e. groundcover, shrub and canopy structure is trending towards being similar to comparable reference sites.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Certification by an Self-sustaining Abundance and appropriately qualified natural vegetation or diversity of native person that native fauna habitat. fauna species. species identified in pre- mining baseline studies Abundance and and the five years of health of desired reference site monitoring plant species. prior to the completion of rehabilitation are present Abundance of or indicators of these declared plants species or habitat (weeds) identified elements are developing through surveys. within the rehabilitated areas. Certification by an appropriately qualified person that plants in rehabilitated areas show evidence of flowering, seed setting and seed germination. Certification by an appropriately qualified person that the abundance of declared plants (weeds) identified in rehabilitated areas in no greater than comparable reference sites. Evidence to demonstrate that action has been taken to eradicate declared plants (weeds) under local or State legislation should they occur on the site.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Records indicating that appropriate weed and seed hygiene procedures were implemented during rehabilitation. Abundance of Certification by an declared animals appropriately qualified identified through person that the surveys. abundance of declared animals identified in rehabilitated areas in no greater than comparable reference sites. Evidence to demonstrate that action has been taken to control declared animals under local or State legislation should they occur on the site. Agricultural grazing. Livestock stocking An appropriately rates. qualified person has predicted and defined the expected stocking rates of the rehabilitated land, and these have been agreed with relevant stakeholders. Landform stability Land maintenance when grazed. requirements are comparable to comparable reference sites. Number and Stock has adequate volume of water access to water that sources suitable for meet accepted livestock stock. drinking water guidelines.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Overburden Emplacement Long term The site is Safety assessment Certification by an Area safety structurally safe, and of landform stability appropriately qualified the environment is (geotechnical person in the not exposed to studies). Rehabilitation Report contamination by that slopes are now safe heavy metals and and exhibit other toxic materials. characteristics for long term stability. A risk assessment has been completed and risk mitigation measures have been implemented. Where risk mitigation measures include bunds, safety fences and warning signs, these have been erected in accordance with relevant guidelines and Australian Standards Landform design meets the requirements of Section 4.5 Land and rehabilitation in the Boundary Hill South Environmental Management Plan (December 2016) and Appendix 2, Figure 2 - Boundary Hill South final landform of this environmental authority. Encapsulation Certification by an depth and appropriately qualified containment of person that the potentially Rehabilitation Report contaminating includes predictions material. about future changes and that the specified cover thickness is in place.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Evidence in the Rehabilitation Report that monitoring results for dust and particulate matter indicates compliance with the limits in the environmental authority. Results of site Evidence in the contaminated land Rehabilitation Report investigation report. that measures required in site contaminated land investigation report have been implemented. Evidence of stream Evidence in the bank erosion. Rehabilitation Report that creek diversions are stable at closure and exhibit characteristics for long term stability. Site is safe for Safety assessment An appropriately humans and animals of landform stability qualified person certifies now and in the (geotechnical the long-term foreseeable future. studies). geotechnical stability of the residual slopes and faces and evidence of this is documented in the Rehabilitation Report. Site is safe for Adequacy and Evidence in the humans and animals predicted long-term Rehabilitation Report now and in the performance of that a safety risk foreseeable future. safety barriers. assessment of the slopes has been completed and proposed mitigation measures are documented in a Safety Plan.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Installation of safety If required, mitigation No receiving Mine affected water barriers and measures documented waters are contained on site. human/wildlife in a Safety Plan, e.g. contaminated. exclusion fencing. fencing or other suitable barrier around the slopes are installed to restrict access. Downstream Certification by an surface water appropriately qualified quality parameters person that surface stated in the water quality at project's monitoring locations is environmental not negatively impacted authority. when trends indicated by results from baseline monitoring and the 5 years previous to mine closure are compared to monitoring results for the rehabilitated landform. Groundwater Certification by an quality parameters appropriately qualified stated in the person that groundwater project's quality at monitoring environmental locations is not authority. negatively impacted when trends indicated by results from baseline monitoring and the 5 years previous to mine closure are compared to monitoring results for the rehabilitated landform.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Final landform Certification by an water storages are appropriately qualified contained on-site, person that surface with no overflows water quality at into external monitoring locations is surface water not negatively impacted systems. when trends indicated by results from baseline All permanent Approved design monitoring and the 5 regulated structures criteria. years previous to mine will meet approved closure are compared to design criteria. monitoring results for the rehabilitated landform. All non-permanent The number and regulated structures condition of non- Receiving water affected decommissioned permanent by surface water runoff appropriately. regulated has contaminant limits in structures. accordance with the environmental authority. Acid mine drainage Encapsulation will not cause depth and The regulated structures serious containment of are certified by a environmental harm. potentially suitably qualified and contaminating experienced person. material. All regulated structures are decommissioned in accordance with the administering authority requirements. Certification by suitably qualified person in the Rehabilitation Report that the emplacement cells for any potentially acid forming material have been constructed in accordance with recommendations in the Acid Mine Drainage Assessment report.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Stable landform Landform design Slope angle and Evidence in the achieves appropriate length. Rehabilitation Report erosion rates. that the rehabilitated slopes have been designed to the specifications outlined in Section 4.5 Land and rehabilitation in the Boundary Hill South Environmental Management Plan (December 2016) and Appendix 2, Figure 2 - Boundary Hill South final landform of this environmental authority. Engineered Evidence in the structures to control Rehabilitation Report water flow. that required contour banks, channel linings, surface armour, engineered drop structures and other required measures are in place and functioning as intended. Rates of soil loss. Certification by an appropriately qualified person that land disturbed by mining activities does not exhibit any signs of continued erosion greater than that exhibited at a comparable reference site. The comparable reference site must have similar chemical and physical characteristics including slope as the rehabilitated landform.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Dimensions and Evidence in the frequency of Rehabilitation Report occurrence of that the dimensions and erosion of rills and frequency of occurrence gullies. of erosion rills and gullies are no greater than that in comparable reference site(s). Vegetation cover Abundance and Certification by an sufficient for a self- diversity of native appropriately qualified sustaining fauna species. person that native fauna community and to species identified in pre- minimise erosion. mining baseline studies and the five years of reference site monitoring prior to the completion of rehabilitation are present or indicators of these species or habitat elements are developing within the rehabilitated areas. Vegetation type and Evidence that the density. vegetation type and density are of species suited to the site's characteristics including soil type, topography and climate and that soil erosion meets the goals set in this plan. Vegetation types and densities are comparable with the relevant reference site.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives The diversions and Design and stability Documentation in the run-off drainage lines of drainage Rehabilitation Report mirror natural stream diversions. how drainage diversions functions. have changed over the life of mine and that they are stable at closure and are likely to remain that way into the foreseeable future. To be designed and constructed in accordance with the Queensland Government Natural Resources and Mines, Central West Water Management and Use Regional Guideline: Watercourse Diversions- Central Queensland Mining Industry (2008) and with consideration of contemporary research, i.e. the ACARP report Maintenance of Geomorphic Processes in Bowen Basin River diversions (Project number C8030-C9068).

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Chemical properties Certification in the Sustainable Soil properties of the soil, including Rehabilitation Report land-use support the desired pH, salinity, nutrient that the topsoil chemical land-use. content and properties do not limit exchangeable the suitability of the land sodium percentage. for the intended land use and are consistent with the following: - soil salinity content is <0.6dS/m; - soil pH is between 5.5 and 8.5; - soil exchangeable sodium percentage (ESP) is <15%; - nutrient accumulation and recycling processes are occurring as evidenced by the presence of a litter layer, mycorrhizae and/or other microsymbionts; and - adequate macro and micro-nutrients are present. Physical properties Certification in the of topsoil. Rehabilitation Report that the soil physical properties, e.g. rockiness, depth of soil, wetness and plant available water capacity are adequate for plant growth.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Topsoil thickness. Certification in the Soil properties Site soil Rehabilitation Report of support the desired characteristics. suitability for beef cattle land-use. grazing land use in accordance with Department of Minerals and Energy (DME) 1995 Land Suitability Assessment Techniques in Technical Guidelines for the Environmental Management of Exploration and Mining. Certification in the Rehabilitation Report that topsoil has been respread according to the depths required in the Topsoil Management Plan. Certification in the Rehabilitation Report that the site's soil characteristics have acceptable levels of surface roughness, infiltration capacity, aggregate stability and surface condition as defined in the Australian Soil and Land Survey Field Handbook (National Committee on Soil and Terrain 2009).

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Establish self- Presence of key Certification by an sustaining natural plant species. appropriately qualified vegetation or habitat. person that key plant species identified in the comparable reference site occur on the rehabilitation site. The presence of key plant species may also be guided by future vegetation trials for rehabilitation. Density of key plant Certification by an species. appropriately qualified person that the density of key plant species in comparable reference sites is similar to the rehabilitation site. The density of key plant species may also be guided by future vegetation trials for rehabilitation. Structure of Certification by an vegetation habitat. appropriately qualified person that the structure of vegetation, i.e. groundcover, shrub and canopy structure is trending towards being similar to comparable reference sites.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Certification by an Self-sustaining Abundance and appropriately qualified natural vegetation or diversity of native person that native fauna habitat. fauna species. species identified in pre- mining baseline studies Abundance and and the five years of health of desired reference site monitoring plant species. prior to the completion of rehabilitation are present Abundance of or indicators of these declared plants species or habitat (weeds) identified elements are developing through surveys. within the rehabilitated areas. Certification by an appropriately qualified person that plants in rehabilitated areas show evidence of flowering, seed setting and seed germination. Certification by an appropriately qualified person that the abundance of declared plants (weeds) identified in rehabilitated areas in no greater than comparable reference sites. Evidence to demonstrate that action has been taken to eradicate declared plants (weeds) under local or State legislation should they occur on the site.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Abundance of Records indicating that declared plants appropriate weed and (weeds) identified seed hygiene through surveys. procedures were implemented during rehabilitation. Abundance of Certification by an declared animals appropriately qualified identified through person that the surveys. abundance of declared animals identified in rehabilitated areas is no greater than comparable reference sites. Evidence to demonstrate that action has been taken to control declared animals under local or State legislation should they occur on the site. Agricultural grazing. Livestock stocking An appropriately rates. qualified person has predicted and defined the expected stocking rates of the rehabilitated land, and these have been agreed with relevant stakeholders. Landform stability Land maintenance when grazed. requirements are comparable to comparable reference sites. Number and Stock has adequate volume of water access to water that sources suitable for meet accepted livestock stock. drinking water guidelines.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Water storage Long term Structurally safe with Safety assessment Certification by an no hazardous of landform stability appropriately qualified areas safety materials. (geotechnical person in the studies). Rehabilitation Report that slopes are now safe and exhibit characteristics for long term stability. A risk assessment has been completed and risk mitigation measures have been implemented. Where risk mitigation measures include bunds, safety fences and warning signs, these have been erected in accordance with relevant guidelines and Australian Standards. Landform design meets the requirements of Section 4.5 Land and rehabilitation in the Boundary Hill South Environmental Management Plan (December 2016) and Appendix 2, Figure 2 - Boundary Hill South conceptual final landform of this environmental authority. Site is safe for The presence on Certification by a humans and animals site of regulated suitably qualified and now and in the dams that need experienced person in foreseeable future. decommissioning. the site Rehabilitation Report that regulated dams and structures have been decommissioned and rehabilitated.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Certification by an No receiving Mine affected water Downstream appropriately qualified waters are is contained on site. surface water person that surface contaminated. quality parameters water quality at stated in the monitoring locations is project's not negatively impacted environmental when trends indicated authority. by results from baseline monitoring and the 5 Groundwater years previous to mine quality parameters closure are compared to stated in the monitoring results for the project's rehabilitated landform. environmental authority. Certification by an appropriately qualified All permanent Approved design person that groundwater stream diversion will criteria. quality at monitoring meet approved locations is not design criteria. negatively impacted when trends indicated by results from baseline monitoring and the 5 years previous to mine closure are compared to monitoring results for the rehabilitated landform. Receiving water affected by surface water runoff has contaminant limits in accordance with the environmental authority. Certification by an appropriately qualified person that all stream diversions have been constructed and are operating in accordance with approved design criteria.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Approved design The regulated structures All permanent criteria. are certified by a regulated structures suitably qualified and will meet approved The number and experienced person. design criteria. condition of non- permanent Regulated structures are All non-permanent regulated decommissioned in regulated structures structures. accordance with the decommissioned Voids protected administering authority appropriately. from flooding. requirements. Hazardous materials Encapsulation Certification by a are adequately depth and suitably qualified and managed, and the containment of experienced person in environment is not potentially the Rehabilitation Report exposed to contaminating that the voids have an contamination by material. adequate protection heavy metals or system to prevent other toxic material. inundation from a 1: 1,000 year annual exceedance probability flood event. Certification by an appropriately qualified person that the Rehabilitation Report includes predictions about future changes and that the specified cover thickness is in place. Evidence in the Rehabilitation Report that monitoring results for dust and particulate matter indicates compliance with the limits in the environmental authority.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives The site is free of Results of site Evidence in the material other than contaminated land Rehabilitation Report waste rock that could investigation report. that measures required contaminate the in site contaminated land. land investigation report have been implemented. Diversion design and The administering Confirmation in writing maintenance. authority of the from the administering water licence under authority that the water the Water Act 2000 licence under the Water (QLD) has Act 2000 (QLD) is no determined that the longer required. water licence is no longer required. Landform design Engineered Evidence in the achieves appropriate structures to control Rehabilitation Report erosion rates. water flow. that required contour banks, channel linings, surface armour, engineered drop structures and other required measures are in place and functioning. Rates of soil loss. Certification by an appropriately qualified person that land disturbed by mining activities does not exhibit any signs of continued erosion greater than that exhibited at a comparable reference site. The comparable reference site must have similar chemical and physical characteristics including slope as the rehabilitated landform.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Dimensions and Evidence in the frequency of Rehabilitation Report occurrence of that the dimensions and erosion of rills and frequency of occurrence gullies. of erosion rills and gullies are no greater than that in comparable reference site(s). Vegetation cover Vegetation type and Evidence that the sufficient for a self- density. vegetation type and sustaining density are of species community and to suited to the site's minimise erosion. characteristics including soil type, topography and climate and that soil erosion meets the goals set in this plan. Vegetation types and densities are comparable with the relevant reference site. Foliage cover. Minimum of 70% groundcover is present (or 50% if rocks, logs or other features are present). No bare surfaces >20 m2 in area or > 10 m in length down slope. The diversions and Design and stability Documentation in the run-off drainage lines of drainage Rehabilitation Report will mirror natural stream diversions. show whether, and if so functions. how, drainage diversions have changed over the life of mine; that they are stable at closure; and are likely to remain stable into the foreseeable future.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives The final The diversions and Design and stability Demonstration that landform is run-off drainage lines of drainage drainage diversions stable. mirror natural stream diversions. have been designed and functions. constructed in accordance with the Queensland Government Natural Resources and Mines, Central West Water Management and Use Regional Guideline: Watercourse Diversions- Central Queensland Mining Industry (2008) and with consideration of contemporary research, i.e. the ACARP report Maintenance of Geomorphic Processes in Bowen Basin River diversions (Project number C8030-C9068).

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Chemical Certification in the Sustainable Soil properties properties, e.g. pH, Rehabilitation Report land-use support the desired salinity, nutrient that the topsoil chemical land-use. content, sodium properties do not limit content of topsoil to the suitability of the land support the for the intended land use proposed and are consistent with vegetation and the following: land-use. - soil salinity content is <0.6dS/m; - soil pH is between 5.5 and 8.5; soil exchangeable sodium percentage (ESP) is <15%; - nutrient accumulation and recycling processes are occurring as evidenced by the presence of a litter layer, mycorrhizae and/or other microsymbionts; and - adequate macro and micro-nutrients are present. Physical properties Certification in the of topsoil. Rehabilitation Report that the soil physical properties, e.g. rockiness, depth of soil, wetness and plant available water capacity are adequate for plant growth.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Topsoil thickness. Certification in the Rehabilitation Report of Site soil suitability for beef cattle characteristics. grazing land use in accordance with Department of Minerals and Energy (DME) 1995 Land Suitability Assessment Techniques in Technical Guidelines for the Environmental Management of Exploration and Mining. Certification in the Rehabilitation Report that topsoil has been respread according to the depths required in the Topsoil Management Plan. Certification in the Rehabilitation Report that the site's soil characteristics have acceptable levels of surface roughness, infiltration capacity, aggregate stability and surface condition as defined in the Australian Soil and Land Survey Field Handbook (National Committee on Soil and Terrain 2009).

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Establish self- Presence of key Certification by an sustaining natural plant species. appropriately qualified vegetation or habitat. person that key plant species identified in the comparable reference site occur on the rehabilitation site. The presence of key plant species may also be guided by future vegetation trials for rehabilitation. Density of key plant Certification by an species. appropriately qualified person that the density of key plant species in comparable reference sites is similar to the rehabilitation site. The density of key plant species may also be guided by future vegetation trials for rehabilitation. Structure of Certification by an vegetation habitat. appropriately qualified person that the structure of vegetation, i.e. groundcover, shrub and canopy structure is trending towards being similar to comparable reference sites. Self-sustaining Abundance and Certification by an natural vegetation or health of desired appropriately qualified habitat. plant species. person that plants in rehabilitated areas show evidence of flowering, seed setting and seed germination.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Abundance and Certification by an diversity of native appropriately qualified fauna species. person that native fauna species identified in pre- Abundance of mining baseline studies declared plants and the five years of (weeds) identified reference site monitoring through surveys. prior to the completion of rehabilitation are present Self-sustaining Abundance of or indicators of these natural vegetation or declared plants species or habitat habitat. (weeds) identified elements are developing through surveys. within the rehabilitated areas. Certification by an appropriately qualified person that the abundance of declared plants (weeds) identified in rehabilitated areas in no greater than comparable reference sites. Evidence to demonstrate that action has been taken to eradicate declared plants (weeds) under local or State legislation should they occur on the site. Records indicating that appropriate weed and seed hygiene procedures were implemented during rehabilitation.

Permit Environmental authority EPML00720413 - Callide Coal Mine Domain Rehabilitation Rehabilitation Indicators Completion criteria goals objectives Abundance of Certification by an declared animals appropriately qualified identified through person that the surveys. abundance of declared animals identified in Agricultural grazing. Landform stability rehabilitated areas is not when grazed. greater than comparable reference sites. Stock access to water sources. Evidence to demonstrate that action has been taken to control declared animals under local or State legislation should they occur on the site. Land maintenance requirements are comparable to comparable reference sites. Stock has adequate access to water that meets accepted livestock drinking water guidelines.

248 000 E Legend ML80107 Link Road N Project Site ML80151 Project Disturbance Area 7 320 000 N Mining Lease Boundary mpbel l's Cr eek Cadastral Boundary Road VMA Watercourse Farm DaMmL 5655 Seasonal Wetland ML5655 Ca Powerline Easement ML80186 7 318 000 N Argoon Kilburnie Road Regional Ecosystems v12 Least Concern DATUM: GDA94 11.3.25 (Eucalyptus woodland fringing Zone: 56 drainage lines) 11.9.9 (Ironbark woodland) 0 500m 11.10.1 (Lemon-scented Gum woodland) 11.8.4 (Silver-leaved Ironbark open woodland) Horizontal Scale Of Concern 11.9.13 (Grey Box open woodland) 2204 BHS EA (2025) - F 01 Authorised Disturbance (24/04/2025) 11.9.13 (Of Concern) / 11.10.1 (Least Concern) (Grey Box open woodland / Lemon-scented Gum woodland) CALLIDE MINE Boundary Hill South Authorised Disturbance Footprint FIGURE 1

7318000 N Legend Mining Lease Boundary Cadastral Boundary Creek Line Drainage Line Open Cut Mine Layout Rehabiltated Area Non-Use Management Area (NUMA) 246000 E ML 5655 ML 80151 ML 80186 248000 E Residual Void Campbell (Gate) NUMA (147.4 ha) Link Road Creek Inverness Road Boundary Hill South Mining Area DATUM: GDA94 - Conceptual Final Landform Zone: 56 EA Appendix 2 - FIGURE 2 0 400m Horizontal Scale N 2204 BHS EA (2025) - F 02 Conceptual Final Landform (23/04/2025)

Legend 250000 E THE HUT Mine Lease Boundary Mount Murchison Nature Refuge ML 5654 N ML 80122 ML 5662 TRAP GULLY ML 5653 ML 80117 MOUNT MURCHISON NATURE REFUGE 7310000 N DUNN CREEK ML 80118 Haul Road ML 80030 DATUM: GDA94 ML 80093 ML 5641 Zone: 56 0 800m Horizontal Scale 2204 BHS HR EA - F 03 MT MURCHISON REFUGE (17/02/2023) CALLIDE MINE Mount Murchison Nature Refuge FIGURE 3

250000 E 260000 E Bell Creek N Lake7320000 N BOUNDARY HILL Gasteen BHE_VWP01 BH01 CMamBpb0e7ll's Cre ek Cre ek BH_MB01 MB27 Gate C0507663 MB29 R3076 MB23 THE HUT MB15 MB36 R3084 Oaky Cr e ek HUT03 Trap Gully Cr eek TG01 TG02 HUT01 DC040C 7310000 N 1900 TRAP GULLY DUNN CREEK Legend Lake Callide Mining Area Boundary Callide Cr eek Surface Drainage Groundwater Monitoring Bore Vibrating Wire Piezometer DATUM: GDA94 Zone: 56 0 2.25km Horizontal Scale 2203 Callide - CWQ Amendment (Groundwater bore monitoring network) (4/12/2024) CALLIDE MINE Groundwater Bore Monitoring Network FIGURE 5

Permit Environmental authority EPML00720413 - Callide Coal Mine END OF ENVIRONMENTAL AUTHORITY