Data as at 14 September 2026 · from the Queensland EP Act public register
EPML00942413 · Oaky Creek Coal Mine
Coal environmental authority EPML00942413 (Oaky Creek Coal Mine), Granted. 214 conditions indexed. Holds PRC plan P-PRCP-101052204.
- Status
- Granted
- Holders
- Oaky Creek Holdings Pty Limited; ICRA OC Pty Ltd; SCAP OAKY CREEK PTY LTD
- Tenures
- ML1832; ML2004; ML70241; ML70327; ML70424
- PRC plan
- P-PRCP-101052204 · effective 2026-03-13
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
214 numbered conditions read from the current instrument. Page numbers link into the register PDF.
- A1
This environmental authority authorises environmental harm referred to in the conditions. Where there is no condition or this environmental authority is silent on a matter, the lack of a condition or silence does not authorise environmental harm.
- A2
Prevent and /or minimise likelihood of environmental harm In carrying out the environmentally relevant activities, the environmental authority holder must take all reasonable and practicable measures to prevent and / or to minimise the likelihood of environmental harm being caused. Any environmentally relevant activity, that, if carried out incompetently, or negligently, may cause environmental harm, in a manner that could have been prevented, shall be carried out in a proper manner in accordance with the conditions of this authority.
- A3
Maintenance of measures, plant and equipment The environmental authority holder must ensure: a) that all measures, plant and equipment necessary to ensure compliance with the conditions of this environmental authority are installed; b) that such measures, plant and equipment are maintained in a proper condition; and c) that such measures, plant and equipment are operated in a proper manner.
- A5
Monitoring All monitoring required by the conditions of this environmental authority must be carried out, interpreted, and recorded by an appropriately qualified person.
- A6
Upon request from the administering authority, copies of monitoring results, records, registers, management plans and reports required by the conditions of this environmental authority must be made available and provided to the administering authority within: a) ten (10) business days; or b) an alternative timeframe agreed between the administering authority and the environmental authority holder.
- A7
Notification of emergencies, incidents and exceptions All reasonable actions are to be taken to minimise environmental harm, or potential environmental harm, resulting from any emergency, incident or circumstances not in accordance with the conditions of this environmental authority.
- A8
The holder of this environmental authority must notify the administering authority by written notification as soon as practicable after becoming aware of any emergency, incident or information about circumstances (nominally within twenty-four (24) hours) which results or may result in environmental harm not in accordance with the conditions of this environmental authority. Permit Environmental authority
- A9
Not more than ten (10) business days following the initial notification of an emergency, incident or information about circumstances which result or may result in environmental harm, written advice must be provided to the administering authority in relation to: a) proposed actions to prevent a recurrence of the emergency or incident; b) the outcomes of actions taken at the time to prevent or minimise environmental harm; and c) proposed actions to respond to the information about circumstances which result or may result in environmental harm.
- A10
As soon as practicable, but not more than six (6) weeks following the initial notification of an emergency, incident or information about circumstances which result or may result in environmental harm, environmental monitoring must be performed and written advice must be provided of the results of any such monitoring performed to the administering authority.
- A11
Activity Contaminants must not be released to the receiving environment unless they are in accordance with the contaminant limits authorised by this environmental authority.
- A12
Coal Extraction The environmental authority holder is approved for a coal extraction rate of up to 15.9 million tonnes per annum (Mtpa) of run-of-mine (ROM) ore in accordance with this environmental authority.
- 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 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 Conditions G35 to G38, 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. Permit Environmental authority Schedule B: Air Condition Condition number
- B1
Dust nuisance The release of dust or particulate matter or both resulting from the resource activities must not cause an environmental nuisance, at any sensitive or commercial place.
- B2
When requested by the administering authority or as a result of a complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised officer), dust and particulate monitoring must be undertaken, and the results thereof notified to the administering authority within fourteen (14) days following completion of monitoring. Monitoring must be carried out at a place(s) relevant to the potentially affected sensitive or commercial place. Dust and particulate matter must not exceed the following levels when measured at any nuisance sensitive or commercial place: a) Dust deposition of 120 milligrams per square metre per day, when monitored in accordance with Australian Standard AS 3580.10.1 of 2003 (or more recent editions); and b) A concentration of particulate matter with an aerodynamic diameter of less than 10 micrometre (-m) (PM10) suspended in the atmosphere of 50 micrograms per cubic metre over a 24 hour averaging time, at a nuisance sensitive or commercial place downwind of the site, when monitored in accordance with: i) Australian Standard AS 3580.9.6 of 2003 (or more recent editions) Ambient air - Particulate matter - Determination of suspended particulate PM10 high-volume sampler with size- selective inlet -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.
- B3
If monitoring indicates exceedance of the relevant limits in Condition B2, then the environmental authority holder must: a) address the complaint including the use of appropriate dispute resolution if required; and b) immediately implement dust abatement measures so that emissions of dust from the activity do not result in further environmental nuisance.
- B4
Odour nuisance The release of noxious or offensive odour(s) or any other noxious or offensive airborne contaminant(s) resulting from the resource activity must not cause an environmental nuisance at any sensitive or commercial place.
- B5
When requested by the administering authority, odour 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 or commercial place, and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring. Permit Environmental authority Schedule C: 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 authorised resource 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 and as illustrated in Figure 1: Water Release Points and Monitoring Locations attached to this environmental authority.
- 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 Conditions C48 to C49 inclusive is permitted.
- 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 when measured at the monitoring points specified in Table C1: Mine Affected Water Release Points, Sources and Receiving Waters for each quality characteristic.
- 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 characteristics and at the frequency specified in Table C2: Mine Affected Water Release Limits and Table C3: Release Contaminant Trigger Investigation Levels. 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
If quality characteristics of the release exceed any of the trigger levels specified in Table C3: Release Contaminant Trigger Investigation Levels during a release event, the environmental authority holder must compare the downstream results in the receiving waters to the trigger values specified in Table C3: Release Contaminant Trigger Investigation Levels and: a) Where the trigger values are not exceeded then no action is to be taken; or b) Where the downstream results exceed the trigger values specified Table C3: Release Contaminant Trigger Investigation Levels for any quality characteristic, compare the results of the downstream site to the data from background monitoring sites (upstream) 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 Condition C6 b) ii) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic. Permit Environmental authority Table C1: Mine Affected Water Release Points, Sources and Receiving Waters Release Latitude Longitude Mine Affected Water Receiving Point (decimal (decimal Source and Location Monitoring Point waters (RP) degree, degree,
- A3
open cut mine to south of Creek Oaky Creek -23.066032 148.492578 Oaky Settlement Pond 2 End of Pipe to Oaky Creek (Lake Leghorn) - CPP drain and then surface run-off Oaky Creek Table C2: Mine Affected Water Release Limits Quality Release Limits Monitoring Comment Characteristic frequency - Electrical Release limits specified in Continuous data to be - conductivity Table C4 for variable flow monitored during release for pH, EC and flow using in-situ (-S/cm) criteria. instruments. pH (pH Unit) 6.0 (minimum) 9.0 (maximum) Daily samples if continuous data is unavailable, when safe to do so and access permits. (the first sample must be taken within two (2) hours of commencement of release) Sulphate Release limits specified in Composite sample* Drinking water (SO42-) (mg/L) Table C4 for variable flow (first sample within two (2) environmental values hours of commencement of from NHMRC 2006 criteria. guidelines or ANZECC. release) * Two (2) day composite sample consisting of no less than twelve (12) hourly increments where the duration of the release exceeds twelve (12) hours - or no less than a single sample where the release duration is less than twelve (12) hours. Permit Environmental authority Table C3: Release Contaminant Trigger Investigation Levels Quality Characteristic Trigger Levels Comment on Trigger Level (all 80th percentile) Monitoring (g/L) Frequency Aluminium 600 Based on 80th percentile of background levels. Arsenic 13 For aquatic ecosystem protection, based on SMD guideline Cadmium 0.2 For aquatic ecosystem protection, based on SMD guideline Chromium 1 For aquatic ecosystem protection, based on SMD guideline Copper Iron Interim guideline, based on 80th percentile of Sandy Creek 3* background levels. 580 Based on 80th percentile of background levels.
- C7
If an exceedance in accordance with Condition C6 b) ii) is identified, the holder of this environmental authority must notify the administering authority within fourteen (14) days of receiving the result.
- C8
Mine Affected Water Release Events The 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
- C4
Mine Affected Water Release during Flow Events.
- C9
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 C4: Mine Affected Water Release during Flow Events for the release point(s) specified in Table C1: Mine Affected Water Release Points, Sources and Receiving Waters.
- C10
The release of mine affected water to waters in accordance with Condition C2 must not exceed the electrical conductivity and sulphate release limits or the maximum release rate (for all combined release point flows) for each receiving water flow criteria for discharge specified in Table
- C4
Mine Affected Water Release during Flow Events when measured at the monitoring points specified in Table C1: Mine Affected Water Release Points, Sources and Receiving Waters.
- C11
Mine Affected Water Release from RP5 The release of mine affected water which has an EC concentration between 10,000 and 15,000 -S/cm and/or a concentration of sulphate between 5,000 and 6,000 mg/L, must only occur: a) From the location RP5, as specified in Table C1: Mine Affected Water Release Points, Sources and Receiving Waters; b) When no releases of mine affected water are occurring from the locations RP1, RP3 and RP4 specified in Table C1: Mine Affected Water Release Points, Sources and Receiving Waters; c) When the receiving water flow criteria stated in Table C4: Mine Affected Water Release during Flow Events is met; and d) When the EC value recorded at MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points, is less than or equal to 2,000 S/cm.
- C12
For the duration of a release of mine affected water in accordance with Condition C11, EC must be continuously monitored at location MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points.
- C13
For Condition C12, continuous monitoring means equipment availability 95% of time within a one (1) hour period. Permit Environmental authority
- C14
If during the release in accordance with Condition C11, the continuous monitoring in accordance with Condition C12 indicates an EC concentration greater than 2,000 S/cm at monitoring location MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points, the holder of this environmental authority must: a) compare the EC concentration recorded at MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points, to the EC concentration recorded at the upstream background monitoring point MP1, as specified in Table C6 and; b) if the EC concentration recorded at MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points, is less than or equal to the EC concentration recorded at the upstream background monitoring point MP1, as specified in Table
- C6
Receiving Water Upstream Background Sites and Down Stream Monitoring Points, then no action is to be taken; or c) if the EC concentration recorded at MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points, is greater than the EC concentration recorded at the upstream background monitoring point MP1, as specified in Table C6, then: i) determine the cause of the exceedance at monitoring location MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points, including a review of EC concentration and flow rates at receiving environment monitoring points MP1 and MP4, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points; ii) investigate the nature and extent of any environmental harm caused and detail any actions taken to prevent environmental harm; iii) implement the necessary abatement measures to prevent further exceedances of EC 2,000 S/cm at MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points; and iv) provide the findings of the investigation to the administering authority within twenty- eight (28) days of the exceedance of 2,000S/cm at monitoring location MP5, as specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points.
- C15
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.
- C16
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 Table C4: Mine Affected Water Release during Flow Events Receiving Release Gauging Gauging Gauging Receiving Receiving Maximum Electrical waters/ Point (RP) station Station Station Water Flow Water Flow release Conductivity stream Latitude Longitude Recording Criteria for rate and Sulphate
- C17
Notification of Release Event The environmental authority holder must notify the administering authority via WaTERS as soon as practicable and no later than 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) expected release cessation date/time; c) release point/s; d) release rate; e) release volume (estimated); f) receiving water/s including the natural flow rate; and g) any details (including available data) regarding likely impacts on the receiving water(s).
- C18
The environmental authority holder must notify the administering authority via WaTERS as soon as practicable (nominally within twenty-four (24) hours after cessation of a release event) of the cessation of a release notified under Condition C17 and within twenty-eight (28) days provide the following information in writing: a) release cessation date/time; b) natural flow rate in receiving water; c) volume of water released; d) details regarding the compliance of the release with the conditions of Agency Interest: Water of this environmental authority (i.e. contamination limits, natural flow, discharge volume); e) all in situ water quality monitoring results; and f) any other matters pertinent to the water release event.
- C19
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 C17 and C18, provided the relevant details of the release are included within the notification provided in accordance with Conditions C17 and C18. Release Notification - potentially-affected stakeholder/s The environmental authority holder must notify all potentially affected stakeholders on commencement (within two (2) hours or another time frame as agreed to in writing with the relevant potentially affected stakeholder) of releasing mine affected water to the receiving environment. Notification must be in the form agreed to by the potentially affected stakeholder. Notification must include the following information unless otherwise agreed to by the potentially affected stakeholder: a) release commencement date/time; b) release location (release point/s); c) release rate; d) receiving waters for the release; e) receiving waters flow rate; f) water quality of the release including salinity and pH; and g) estimated duration of release. Permit Environmental authority
- C20
Notification of Release Event Exceedance If the release limits defined in Table C2: Mine Affected Water Release Limits are exceeded, the holder of this environmental authority must notify the administering authority within twenty-four (24) hours of receiving the results.
- C21
The environmental authority holder must, within twenty-eight (28) days of a release that exceeds the conditions of this authority, provide a report to the administering authority detailing: a) the reason for the release; b) the location of the release; c) all water quality monitoring results; d) any general observations; e) all calculations; and f) any other matters pertinent to the water release event.
- C22
Receiving Environment Monitoring and Contaminant Trigger Levels The quality of the receiving waters must be monitored at the locations specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points and depicted in Figure 1: Water Release Points and Monitoring Locations for each quality characteristic and at the monitoring frequency stated in Table C5: Receiving Waters Contaminant Trigger Levels.
- C23
The 80th percentile of electrical conductivity (EC) values recorded at the downstream monitoring point MP4 listed in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points must not exceed 2000 -S/cm at any time during the release.
- C24
If quality characteristics of the receiving water at the downstream monitoring point MP4 specified in Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points, exceed any of the trigger levels specified in Table C5: 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 C24 b) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic. Permit Environmental authority Table C5: Receiving Waters Contaminant Trigger Levels Trigger Level Quality Characteristic Monitoring Frequency No/Low Flow Flow Event pH 6.5 - 9.0 Electrical Conductivity 720 2000 Continuous in-situ monitoring (S/cm) during release* Suspended solids (mg/L) 1000 Sulphate (SO42-) (mg/L) Daily during the release 500 1000 * During release the 80th percentile value will be calculated hourly based on the cumulative data set until that time. Table C6: Receiving Water Upstream Background Sites and Down Stream Monitoring Points Monitoring Points Receiving Waters Location Latitude Longitude Description (decimal degree, (decimal degree,
- MP2
(Sandy Creek) GDA94) GDA94)
- MP3
(Cattle Creek) Upstream Background Monitoring Points 148.487535 Oaky Creek - at Oaky In -23.060284 148.516330 (upstream reference site, refer to 148.576739 Figure 1) Sandy Creek - at Sandy Creek In -23.085144 (refer to Figure 1) Cattle Creek - upstream at the -23.015643 northern mine lease boundary (refer to Figure 1) Downstream Monitoring Point
- MP4
(Oaky Creek Out) Oaky Creek at Oaky Out -23.062697 148.593291
- MP5
Oaky Creek at 300 meters -23.064352 148.497390 downstream from the RP5 Permit Environmental authority
- C25
The release of reverse osmosis (RO) product water from the Reverse Osmosis Water Treatment Plant (ROWTP) is authorised subject to Conditions C26 to C44 of this environmental authority.
- C26
The release of RO product water to waters must only take place in accordance with criteria in Table
- C7
Reverse Osmosis Product Water Release Criteria and Monitoring Points and subject to the contaminant release limits specified in Table C8: Reverse Osmosis Product Water Release Limits. Discharges must occur through a flow controlled discharge device at a rate that does not cause soil and sediment erosion.
- C27
The quantity of contaminants released from the release points in Table C7: Reverse Osmosis Product Water Release Criteria and Monitoring Points must be measured and recorded at the monitoring points and at the frequency specified in Table C7: Reverse Osmosis Product Water Release Criteria and Monitoring Points and depicted in Figure 1.
- C28
The release of RO product water to waters must not: a) cause erosion to the bed and bank of the receiving waters; b) cause a build-up of sediment in the receiving waters; and c) during no flow conditions, cause an adverse impact to aquatic biota.
- C29
Notification of Reverse Osmosis Product Water Release Event The environmental authority holder must notify the administering authority as soon as practicable and no later than twenty-four (24) hours after commencing to release RO product 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) expected release cessation date/time; c) release point/s; d) release volume (estimated); e) receiving water/s including the natural flow rate; and f) any details (including available data) regarding likely impacts on the receiving water(s).
- C30
The environmental authority holder must notify the administering authority as soon as practicable (nominally within twenty-four (24) hours after cessation of a release event) of the cessation of a release notified under Condition C29 and within twenty-eight (28) days provide the following information in writing: a) release cessation date/time; b) natural flow volume in receiving water; c) volume of water released; d) details regarding the compliance of the release with the conditions of Agency Interest: Water of this environmental authority (i.e. contamination limits, natural flow, discharge volume); e) all in-situ water quality monitoring results; and f) any other matters pertinent to the water release event. NOTE: Successive or intermittent releases occurring within forty-eight (48) hours of the cessation of any individual release for the purpose of maintenance activities can be considered part of a single release event and do not require individual notification for the purpose of compliance with Conditions C29 and C30, provided the relevant details of the release are included within the notification provided in accordance with Conditions C29 and C30. Permit Environmental authority Table C7: Reverse Osmosis Product Water Release Criteria and Monitoring Points Receiving RO Release and Latitude Longitude Frequency of Monitoring Maximum Water Monitoring Point (GDA94) (GDA94) Release and Description -23.066032 148.492578 Water samples for Description 148.492578 laboratory analysis to be Rate
- C31
Notification of Reverse Osmosis Product Water Release Event Exceedance If the release limits in Table C8: Reverse Osmosis Product Water Release Limits are exceeded at the monitoring points specified within Table C7: Reverse Osmosis Product Water Release Criteria and Monitoring Points, the holder of the environmental authority must notify the administering authority within twenty-four (24) hours of receiving the results.
- C32
The authority holder must, within twenty-eight (28) days of a release of RO product water that exceeds the conditions of this authority, provide a report to the administering authority detailing: a) the location of the release; b) volume of water released; c) the quality of the water released; d) the quality of the water in the receiving environment; e) any impacts on aquatic biota; f) the cause of the exceedance; and g) any other matters pertinent to the water release event.
- C33
Receiving Environment Monitoring Program (REMP) Reporting Requirements A discussion of impacts of RO product water releases on the receiving environment must be included with the annual REMP Results Report required by Condition C41.
- C34
The environmental authority holder must complete and submit an investigation into the movement of the wetting front resulting from the RO product water releases with the annual REMP Results Report required by Condition C41 of this environmental authority.
- C35
Brine and Waste Management Plan The environmental authority holder must implement the Brine and Waste Management Plan (BWMP) to ensure that impacts on the environment on and off-site are minimised. The BWMP must include as a minimum: a) identification and characterisation of liquid and solid wastes generated by the ROWTP, including volumes generated; b) a program for safe disposal of all wastes generated, including details of waste management control strategies and methods and identification of beneficial uses for waste products generated; c) monitoring and reporting matters concerning the brine and waste, including groundwater monitoring in compliance with Conditions D2 to D8 of this environmental authority; d) emergency response planning, annual review and continuous improvement; and e) identification of responsible staff (positions) for implementing, managing and reporting associated with the BWMP.
- C36
Brine produced by the ROWTP must be disposed within in-pit storages and/or underground storages such that the brine is fully contained within the sites mine water management system. Permit Environmental authority Table C9: Stock Water Release Limits Quality characteristic Units Minimum Maximum pH pH units 6.5 8.5 Electrical Conductivity 5,000 -S/cm N/A Table C10: Irrigation and Fire suppression Water Release Limits Quality characteristic Units Minimum Maximum pH pH units 6.5 8.5 Electrical Conductivity -S/cm >150 5,000 Site and vegetation species specific value determined in accordance with ANZECC & ARMCANZ (2000) Irrigation Guidelines
- C37
Receiving Environmental Monitoring Program (REMP) The environmental authority holder must develop and implement a REMP to monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised resource activity. This must include monitoring of the effects of the mine on the receiving environment periodically (under natural flow conditions) and while mine affected water and/or RO Product Water is being discharged from the site. For the purposes of the REMP, the receiving environment is the waters of Sandy Creek, Oaky Creek and connected or surrounding waterways within 100m upstream of the confluence of Oaky Creek and German Creek. The REMP should encompass any sensitive receiving waters or environmental values downstream of the authorised resource activity that will potentially be directly affected by an authorised release of mine affected water or RO product water.
- C38
The REMP must be maintained by a person possessing appropriate qualifications and experience in the field of hydrology and surface water monitoring program design. Permit Environmental authority
- C39
The REMP required by Condition C37 must address, but not be limited to, the following: a) a description of potentially affected receiving waters including key communities and background water quality characteristics based on accurate and reliable monitoring data that takes into consideration any temporal variation (e.g. seasonality); b) a description of applicable environmental values, including but not limited to: i) hydrology (flow, duration, periodicity connectivity with groundwater systems); ii) physiochemical properties; iii) aquatic ecosystem parameters including flow and fauna habitat; and iv) geomorphological features; c) a description of water quality objectives to be achieved (i.e. as scheduled pursuant to the Environmental Protection (Water and Wetland Biodiversity) Policy 2019); d) any relevant reports prepared by other governmental or professional research organisations that relate to the receiving environment within which the REMP is proposed; e) water quality targets within the receiving environment to be achieved, and clarification of contaminant concentrations or levels indicating adverse environmental impacts during the REMP; f) monitoring for any potential and adverse environmental impacts caused by the release including impacts to bank stability and erosion; g) monitoring of stream flow hydrology; h) an assessment of bank stability and an evaluation of water course bank slumping; i) monitoring of physical chemical parameters including, as a minimum, those specified in Table C5 - Receiving Waters Contaminant Trigger Levels of this environmental authority and dissolved oxygen saturation to assess the extent of the compliance of concentrations with water quality objectives and/or the ANZG2018 guidelines for slightly to moderately disturbed ecosystems; j) monitoring of contaminants should consider the limits specified in Table C3 - Release Contaminant Trigger Investigation Levels of this environmental authority to assess the extent of the compliance of concentrations with water quality objectives and/or the ANZECC & ARMCANZ 2000 guidelines for slightly to moderately disturbed ecosystems; k) monitoring of metals/metalloids in sediments with consideration of ANZECC & ARMCANZ 2000 guidelines, BATLEY and the most recent version of AS5667.4 Guidance on Sampling of Bottom
- C40
The REMP Design Document must be updated and resubmitted to the administering authority whenever the release activities change or the program is modified. The REMP Design Document must describe how the REMP will address the criterion in Conditions C37 and C39 of this environmental authority. Due consideration must be given to any comments made by the administering authority on the amended REMP Design Document and subsequent implementation of the program. NOTE: For guidance in preparing a REMP Design Document, please refer to the Receiving environment monitoring program which is available on the department's website at www.des.qld.gov.au.
- C41
An annual REMP Results Report must be prepared and submitted to the administering authority by 30 October each year reporting on how the criterion in Conditions C37 and C39 has been achieved.
- C42
Water Reuse Mine affected water and/or RO product 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 for the purpose of: a) supplying stock water subject to compliance with the quality release limits specified in Table C9: Stock Water Release Limits; or b) supplying irrigation water subject to compliance with quality release limits in Table C10: Irrigation and Fire suppression Water Release Limits; or c) supplying water for dust suppression, construction and/or road maintenance in accordance with the conditions of this environmental authority; or d) supplying water for rural fire fighting purposes in the region.
- C43
Mine affected water and RO product 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 dams or tanks, for the purpose of supplying water to irrigation areas and for fire-fighting purposes. The volume, pH and electrical conductivity of water transferred to irrigation areas and for fire-fighting purposes must be monitored and recorded
- C44
If the responsibility for mine affected water and/or RO product water is given or transferred to another person in accordance with Conditions C42 or C43 of this environmental authority, then: a) the responsibility for the mine affected water and RO Product Water must only be given or transferred in accordance with a written agreement (the third party agreement); and b) the third party agreement must include a commitment from the person utilising the mine affected water and RO Product Water to use it in such a way as to prevent environmental harm or public health incidents and specifically make the persons aware of the General Environmental Duty (GED) under section 319 of the Environmental Protection Act 1994, environmental sustainability of the water disposal and protection of environmental values of waters; and c) the third party agreement must be signed by both parties to the agreement. Permit Environmental authority
- C45
Water General All determinations of water quality and biological monitoring must be: a) made in accordance with methods prescribed in the latest edition of the administering authority's Monitoring and Sampling Manual; b) collected from the monitoring locations identified within this environmental authority, within four (4) hours of each other where possible; c) carried out on representative samples; and d) analysed at a laboratory accredited (e.g. NATA) for the method of analysis being used. NOTE: Condition C45 requires the Monitoring and Sampling Manual to be followed, and where it is not followed because of exceptional circumstances this should be explained and reported with the results.
- C46
The release of any contaminants as permitted by this environmental authority, directly or indirectly to waters, other than internal water management infrastructure that is installed and operated in accordance with a water management plan that complies with Conditions C48 to C49 inclusive: a) must not produce any visible discolouration of receiving waters; and b) must not produce any slick or other visible or odorous evidence of oil, grease or petrochemicals nor contain visible floating oil, grease, scum, litter or other objectionable matter.
- C47
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; f) the results of all monitoring and details of any exceedances of the conditions of this environmental authority; and g) water quality monitoring data must be provided to the administering authority in the specified electronic format upon request. Permit Environmental authority
- C48
Water Management Plan A Water Management Plan that complies with the requirements of Condition C49 must be developed and implemented for all stages of the resource activities on the site.
- C49
The Water Management Plan must: a) provide for effective management of actual and potential environmental impacts resulting from water management associated with the resource activities carried out under this environmental authority; b) be developed in accordance with administering authority's guideline Preparation of water management plans for mining activities (or more recent editions) and include: i) a study of the source of contaminants; ii) a water balance model for the site; iii) a water management system for the site; iv) measures to manage and prevent saline drainage; v) measures to manage and prevent acid rock drainage; vi) contingency procedures for emergencies; and vii) a program for monitoring and review of the effectiveness of the Water Management Plan; and viii) Include details of the management methodology for brine produced by the ROWTP;
- C50
The Water Management Plan must be reviewed each calendar year and a report prepared by an appropriately qualified person.
- C51
Saline Drainage The holder of this environmental authority must ensure proper and effective measures are taken to avoid or otherwise minimise the generation and/or release of saline drainage.
- C52
Acid Rock Drainage The holder of this environmental authority must ensure proper and effective measures are taken to avoid or otherwise minimise the generation and/or release of acid rock drainage.
- C53
Stormwater and Water Sediment Controls An Erosion and Sediment Control Plan must be developed and implemented for all stages of the resource activities on the site to minimise erosion and the release of sediment to receiving waters and contamination of stormwater.
- C54
All reasonable and practicable erosion protection measures and sediment control measures must be implemented and maintained to minimise erosion and the movement of sediment, including: a) all clean waters, from undisturbed areas, kept separate from dirty waters from disturbed areas; b) water from disturbed catchments diverted into the mine water management system and sedimentation dams; c) new sedimentation dams designed to capture the sediment volume calculated for the catchment area for a twenty-four (24) hour storm event with a recurrence interval of 1 in 10 years ; and d) sediment shall be excavated from sediment dams as required to maintain design capacity. e) an audit schedule must be completed to ensure erosion and sediment control measures are maintained. Permit Environmental authority
- C55
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 C53; and b) water management infrastructure that is installed and operated, in accordance with a Water Management Plan that complies with Conditions C48 to C49 inclusive, for the purpose of ensuring water does not become mine affected water.
- C56
The maintenance and cleaning of any vehicles, plant or equipment must not be carried out in areas from which contaminants can be released into any receiving waters.
- C57
Any spillage of wastes, contaminants or other materials must be cleaned up as quickly as practicable to minimise the release of wastes, contaminants or materials to any stormwater drainage system or receiving waters. Permit Environmental authority Schedule D: Groundwater Condition Condition number
- D1
Contaminants from the activity must not be released to groundwater.
- D2
Groundwater, affected by the resource activities must be monitored at the locations and frequencies defined in Table D1: Groundwater monitoring locations and frequencies.
- D3
If the groundwater investigation trigger levels defined in Table D2: Groundwater investigation - trigger levels are exceeded then the environmental authority holder must complete an investigation into the potential for environmental harm and notify the administering authority within twenty-eight (28) days of receiving the analysis results.
- D4
Groundwater levels, affected by the resource activities must be monitored at the locations and frequencies defined in Table D3: Groundwater levels.
- D5
Groundwater levels and groundwater drawdown fluctuations in excess of two (2) m per year, not resulting from the pumping of licensed bores, must be notified within seven (7) days to the administering authority following completion of monitoring.
- D6
The groundwater monitoring data must be reviewed on an annual basis. The review must include the assessment of groundwater levels and quality data, and the suitability of the monitoring network. The assessment must be submitted to the administering authority with the annual return.
- D7
Groundwater Monitoring The following information must be recorded in relation to all groundwater water sampling: 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; and d) the results of all monitoring.
- D8
The method of water sampling required by this environmental authority must comply with that set out in the latest edition of the administering authority's Monitoring and Sampling Manual. Permit Environmental authority Table D1: Groundwater monitoring locations and frequencies Monitoring Points Latitude (GDA94) Longitude (GDA94) Frequency Monitoring Point G1 Annually -23.054860 148.530569 Annually BH 11 (P13202) Annually Monitoring Point G2 -23.050977 148.486111 Annually BH 12 (P13203) -23.088235 148.485623 Monitoring Point G3 -23.091233 148.474146 BH 13 (P13469) Monitoring Point G4 BH 14 (P13305) Table D2: Groundwater investigation - trigger levels Parameter Unit Trigger Levels Limit Type pH pH Units 6.5 - 8.5 Minimum/Maximum Electrical Conductivity -S/cm 33,500 Total Dissolved Solids 23,000 Max Magnesium ppm 1,500 Max Sodium mg/L 9,000 Max Potassium mg/L - Max mg/L For interpretation Chloride - purposes only mg/L For interpretation SO42- 3,500 purposes only mg/L Max Table D3: Groundwater levels Monitoring Points Latitude Longitude (GDA94) Surface RL (m) Frequency (GDA94) Annually Monitoring Point G1 Annually BH 11 (P13202) -23.054860 148.530569 169.7 Annually Annually Monitoring Point G2 -23.050977 148.486111 181.6 BH 12 (P13203) -23.088235 148.485623 184.5 Monitoring Point G3 BH 13 (P13469) -23.091233 148.474146 190.2 Monitoring Point G4 BH 14 (P13305) Permit Environmental authority
- E1
The daily operation of the sewage treatment plant and pollution control equipment must be carried out by a person(s) with appropriate experience and/or qualifications to ensure the effective operation of that treatment system and control equipment.
- E2
Pipelines and fittings associated with the treated sewage effluent discharge system must be clearly identified.
- E3
Treated effluent from the sewage treatment plant must only be discharged from the authorised discharge point, as specified in Table E1: Effluent discharge locations of this environmental authority.
- E4
All effluent released from the sewage treatment facilities must be monitored at the frequency and for the parameters specified in Table E2: Sewage effluent quality limits of this environmental authority.
- E5
Treated sewage effluent released directly from the sewage treatment facilities for dust suppression or irrigation must not exceed sewage effluent release limits defined in Table E2: Sewage effluent quality limits of this environmental authority.
- E6
Treated sewage effluent used for dust suppression or irrigation must not cause spray drift or over spray to any sensitive or commercial place.
- E7
When conditions prevent the irrigation of treated effluent to land (such as during or following rain events), the contaminants must be directed to a wet weather storage or alternative measures must be taken to store/lawfully dispose of effluent (such as wet weather storage or tanking off site to another treatment plant or sewer). A record must be kept of any removal or discharge off site, including destination, transporter, dates and volumes.
- E8
Treated sewage effluent must not be released from the site to any waters or the bed and banks of any waters.
- E9
Water or storm water contaminated by sewage treatment activities must not be released to any waters or the bed and banks of any waters.
- E10
The irrigation of treated sewage effluent must be carried out in a manner such that: a) vegetation is not damaged; b) soil erosion and soil structure damage is avoided; c) there is no surface ponding of effluent; d) percolation of effluent beyond the plant root zone is minimised; e) the capacity of the land to assimilate nitrogen, phosphorus, salts, organic matter as measured by oxygen demand and water is not exceeded; and f) the quality of groundwater is not adversely affected.
- E11
The following information must be recorded in relation to all effluent sampling: 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 flow of effluent at the time of sampling; and e) the results of all monitoring. Permit Environmental authority Table E1: Effluent discharge locations Authorised Discharge Points Location Oaky Surface STP Sewage Treatment Plant Oaky No.1 STP Sewage Treatment Plant Oaky North STP Sewage Treatment Plant Table E2: Sewage effluent quality limits Quality characteristics Release limit Units Limit type Monitoring frequency 5 day Biochemical Oxygen Demand 30 mg/L max Quarterly pH pH Units range Monthly Free Chlorine Residual 6.0 to 8.5 mg/L max Monthly Thermotolerant coliforms 3 Cfu/100mL2 max Monthly 100 Permit Environmental authority Schedule F: Noise and Vibration Condition Condition number
- F1
Noise nuisance Noise from the mining activities must not cause an environmental nuisance at any sensitive or commercial place.
- F2
All noise from the resource activities must not exceed the levels specified in Table F1: Noise limits at any sensitive or commercial place.
- F3
Noise monitoring When requested by the administering authority, noise monitoring must be undertaken to investigate any complaint of noise nuisance, and the results notified within fourteen (14) days to the administering authority. Monitoring must include: a) LA10, adj, 10 mins; b) LA1, adj, 10 mins; c) the level and frequency of occurrence of impulsive or tonal noise; d) atmospheric conditions including wind speed and direction; e) effects due to extraneous factors such as traffic noise; and f) location date and time of recording.
- F4
Noise is not considered to be a nuisance under Condition F1 if monitoring shows that noise does not exceed the following levels in the time periods specified in Table F1: Noise limits. Table F1: Noise limits Monday to Sunday (including public holidays) Noise level dB(A) 7am - 6pm 6pm - 10pm 10pm - 7am LA10, adj, 10 mins Noise measured at a `Sensitive Receptor' LA1, adj, 10 mins LA10, adj, 10 mins B/g + 5 B/g + 5 B/g + 3 LA1, adj, 10 mins B/g + 10 B/g + 10 B/g + 8 Noise measured at a 'Commercial place' B/g + 10 B/g + 10 B/g + 5 B/g + 15 B/g + 15 B/g + 10 Permit Environmental authority
- F5
The method of measurement and reporting of noise monitoring must comply with the current edition
- F6
If monitoring indicates exceedance of the relevant limits in Condition F4 of this environmental authority, then the environmental authority holder must: a) address the complaint including the use of appropriate dispute resolution if required; and b) immediately implement noise abatement measures so that emissions of noise from the activity do not result in further environmental nuisance.
- F7
Vibration nuisance Vibration from the resource activities must not cause an environmental nuisance, at any sensitive or commercial place.
- F8
When requested by the administering authority, 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 or commercial place, and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring.
- F9
Vibration monitoring must include the following descriptors, characteristics and conditions: a) location of the blast(s) within the resource activity 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.
- F10
If monitoring indicates exceedance of the relevant limits in Table F2: Vibration Limits, then the environmental authority holder must: a) address the complaint including the use of appropriate dispute resolution if required; and b) immediately implement vibration abatement measures so that vibration from the activity does not result in further environmental nuisance. Table F2: Vibration Limits Location Vibration measured Sensitive or commercial place 5 mm/s peak particle velocity for nine (9) out of ten (10) consecutive blasts and not greater than 10 mm/s peak particle velocity at any time 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
- F11
Airblast overpressure nuisance The airblast overpressure level from blasting operations on the premises must not exceed the limits defined in Table F3: Airblast overpressure level at any sensitive or commercial place.
- F12
When requested by the administering authority, airblast overpressure 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 or commercial place, and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring.
- F13
Airblast overpressure monitoring must include the following descriptors, characteristics and conditions: a) location of the blast(s) within the resource activity 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.
- F14
If monitoring indicates exceedance of the relevant limits in Table F3: Airblast overpressure level of this environmental authority, then the environmental authority holder must: a) address the complaint including the use of appropriate dispute resolution if required; and b) immediately implement airblast overpressure abatement measures so that airblast overpressure from the activity does not result in further environmental nuisance.
- F15
The method of measurement and reporting of airblast overpressure levels must comply with the Location Table F3: Airblast overpressure level Sensitive or commercial place Airblast Overpressure Measured Air blast overpressure level of 115 db (Linear peak) for nine (9) out of ten (10) consecutive blasts initiated and not greater than 120 db (Linear peak) at any time. Permit Environmental authority Schedule G: Waste Condition Condition number
- G1
General For the purpose of Conditions G2 to G12 of this environmental authority, effluent, waste rock, spoil, overburden, rejects and tailings generated on Mining Lease (ML) 1832, ML2004, ML70241, ML70327 and ML70424 are not defined as `waste'.
- G2
Storage of tyres Scrap tyres stored awaiting disposal or transport for take-back and recycling, or waste-to-energy options must be stored in stable stacks and at least ten (10) m from any other scrap tyre storage area, or combustible or flammable material, including vegetation.
- G3
All reasonable and practicable fire prevention measures must be implemented, including removal of grass and other materials within a ten (10) m radius of the scrap tyre storage area.
- G4
Disposing of scrap tyres resulting from the authorised activities in spoil emplacements is acceptable, provided tyres are placed as deep in the spoil as reasonably practicable. A record must be kept of the number and location for tyres disposed.
- G5
Scrap tyres resulting from the resource activities disposed within the operational land must not impede saturated aquifers or compromise the stability of the consolidated landform.
- G6
Waste Management The holder of this environmental authority must develop and implement a Waste Management Plan for all mining activities at the licenced place, that must at a minimum: a) include a description of the mining activity that may generate waste; b) identify characterisations of wastes generated from the resource activities and general volume trends over the past five (5) years; c) include a program for safe recycling or disposal of all wastes - reusing and recycling where possible; d) include waste commitments with auditable targets to reduce, reuse and recycle; e) include waste management control strategies that consider: i) the type of wastes; ii) segregation of the wastes; iii) storage of the wastes; iv) transport of the wastes; v) monitoring and reporting matters concerning the waste; vi) emergency response planning; vii) disposal, reused and recycling options; and f) identify the potential adverse and beneficial impacts of the wastes generated; g) detail the hazardous characteristics of the waste generated (if any); h) cover a disposal procedure for hazardous wastes; i) outline the process to be implemented to allow for continuous improvement of the waste management systems; j) identify responsible staff (positions) for implementing, managing and reporting the Waste Management Plan; and k) include a staff awareness and induction program that encourages re-use and recycling. Permit Environmental authority
- G7
Landfill General and regulated waste generated on site must only be disposed of into the waste disposal trench facility on ML1832, ML2004, ML70241, ML70327 and ML70424, or removed from site.
- G8
Waste Disposal All reasonable and practicable fire prevention measures must be implemented and maintained, around all waste laydown areas.
- G9
Waste must not be burned or allowed to be burned on the licensed site unless by approval of the administering authority.
- G10
A designated area must be set aside for the segregation of economically viable, recyclable solid and liquid waste.
- G11
Records must be kept for five (5) years, and must include the following information: a) date of pickup of waste; b) description of waste; c) cross reference to relevant waste transport documentation; d) quantity of waste; e) origin of the waste; f) destination of the waste; and g) intended fate of the waste, for example, type of waste treatment, reprocessing or disposal.
- G12
NOTE: Records of documents maintained in compliance with a waste tracking system established under the Environmental Protection Act 1994 or any other law for regulated waste will be deemed to satisfy this condition. Records of trade and regulated wastes or material leaving the relevant tenure for recycling or disposal, including the final destination and method of treatment, must be in accordance with the Waste Reduction and Recycling Act 2011. Permit Environmental authority Schedule H: Land Condition Condition number
- H1
Preventing contaminant release to land Contaminants must not be released to land in a manner which constitutes nuisance, material or serious environmental harm.
- H2
Topsoil Topsoil must be strategically stripped ahead of the resource activities in accordance with a Topsoil Management Plan.
- H3
A topsoil inventory which identifies the topsoil requirements for the Oaky Creek Coal Mine project and availability of suitable topsoil, incorporating the volume and location of topsoil stockpiles, on site must be detailed in the Topsoil Management Plan.
- H4
Chemical Storage Chemicals and fuels stored must be effectively contained and controlled in a manner that prevents environmental harm and where relevant, meet Australian Standards, where such a standard is applicable.
- H5
Spillage of all chemicals and fuels must be controlled in a manner that prevents environmental harm.
- H6
All explosives, corrosive substances, toxic substances, gases and dangerous goods must be stored and handled in accordance with the relevant Australian Standard, where such a standard is applicable.
- H7
Spill Kit An appropriate spill kit, personal protective equipment and relevant operator instructions/emergency procedure guides for the management of wastes, chemicals and flammable and combustible liquids associated with the activity must be kept at the site.
- H8
Anyone operating with wastes, chemicals or flammable and combustible liquids under this approval must be trained in the use of the spill kit.
- H9
Infrastructure All infrastructure that is constructed by or for the environmental authority holder during the resource activities, including water storage structures, must be removed from the site prior to surrender, except where agreed in writing by the post mining land owner / holder. NOTE: This is not applicable where the landowner/holder is also the environmental authority holder.
- H10
Ventilation shafts must be sealed post resource activities. Prior to lease relinquishment, the environment authority holder must provide the administering authority with a seal design for each ventilation shaft. The design must be developed by a qualified engineer, recognised by a credible external accreditation body.
- H11
Rehabilitation Subject to the provisions of Conditions H37, H38 and H39, all areas significantly disturbed by resource activities must be rehabilitated in accordance with Appendix 2: Rehabilitation Requirements and Figure 16 - Final Landform Design. Permit Environmental authority
- H12
Progressive rehabilitation must commence within two (2) years when areas become available within the operational land.
- H13
A Rehabilitation Plan must be developed by an appropriately qualified person and implemented, and must include: a) rehabilitation objectives to achieve the rehabilitation goals for all disturbed areas, including residual voids; b) detailed rehabilitation methods for each disturbed area; c) rehabilitation indicators to measure the success of the rehabilitation against the rehabilitation objectives; d) final completion criteria that will achieve the rehabilitation goals and objectives; and e) details of appropriate monitoring and maintenance of rehabilitation.
- H14
The environmental authority holder must notify the administering authority of any changes to the Rehabilitation Plan.
- H15
Residual void outcome Residual voids must not cause any serious environmental harm to land, surface waters or any recognised groundwater 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.
- H16
Prior to lease relinquishment, a qualified engineer (recognised by a credible external accreditation body) must undertake a geotechnical assessment on all final voids. The assessment must investigate final void geotechnical stability and the subsequent report must make recommendations for management of stability and safety.
- H17
Mining Waste For the purpose of Conditions H18 to H25, waste rock, spoil and overburden generated on ML1832, ML2004, ML70241, ML70327 and ML70424 are defined as `mining waste'.
- H18
Mining Waste Management A Mining Waste Management Plan must be developed and implemented during the continuation of the environmental authority. The Mining Waste Management Plan must at a minimum include: a) characterisation programs to ensure that all mining waste is progressively characterised during disposal for net acid producing potential, salinity and the following contaminants: Iron (Fe), Aluminium (Al), Copper (Cu), Magnesium (Mg), Manganese (Mn), Calcium (Ca), Sodium (Na) and Sulphate (SO42-); b) characterisation programs to ensure that the physical properties of the mining waste is progressively characterised during disposal; c) the availability or leachability of metals from the mining waste; d) quantification of PAF from mining waste present; e) review impacts of the PAF mining waste on the rehabilitation; f) management actions for mining waste that has been identified as having a high availability or leachability of metals; g) management actions for mining waste that has been defined as PAF; h) identification of environmental impacts and potential environmental impacts; i) control measures for routine operations to minimise likelihood of environmental harm; j) contingency plans and emergency procedures for non-routine situations; and k) periodic review of environmental performance and continual improvement. Permit Environmental authority
- H19
The management of mining waste emplacement must be in accordance with the following: a) all mining waste must be progressively characterised prior to emplacement for net acid producing potential and the following contaminants: Iron (Fe), Aluminium (Al), Copper (Cu), Magnesium (Mg), Manganese (Mn), Calcium (Ca), Sodium (Na) and Sulphate (SO42-); b) records must be kept of the waste rock, spoil or overburden emplacement to indicate locations and characteristics of mining waste located on Mining Lease (ML) 1832, ML2004, ML70241, ML70327 and ML70424; and c) where the acid producing potential of mining waste material has not been conclusively determined, geochemical kinetic testing must be conducted to indicate oxidation rates, potential reaction products and effectiveness of control strategies.
- H20
Tailings The environmental authority holder will develop, implement and maintain a Coarse and Fine Reject Waste Management Plan. The Coarse and Fine Reject Waste Management Plan will include at a minimum: a) chemical analysis of tailings material to determine the net acid producing potential prior to placement in mining voids; b) the availability or leachability of metals from the tailings; c) placement strategies of tailings in mining voids to enable successful rehabilitation outcomes in accordance with conditions of this environmental authority; d) identification of environmental issues and potential environmental impacts; e) control measures for routine operations to minimise the likelihood of environmental harm; f) contingency plans and emergency procedures for non-routine situations; and g) periodical review of environmental performance and continual improvement.
- H21
The management of tailings disposal must be in accordance with the following: a) all tailings material must be progressively characterised, both annually or when changing to a different coal seam, prior to disposal within mining voids for net acid producing potential and the following contaminants: Iron (Fe), Aluminium (Al), Copper (Cu), Magnesium (Mg), Manganese (Mn), Calcium (Ca), Sodium (Na) and Sulphate (SO42-); b) records must be kept of the tailings disposal to indicate locations and characteristics of tailings disposed of within mining voids; and c) where the acid producing potential of tailings material has not been conclusively determined, geochemical kinetic testing must be conducted to indicate oxidation rates, potential reaction products and effectiveness of control strategies.
- H22
Tailings and reject produced by the coal preparation plant must be disposed of in mining voids. Reject may be used for construction or repair in existing reject disposal areas.
- H23
Tailings or reject must not be disposed of on ML70327 or ML70424.
- H24
Coarse Reject material from processing must be tested for Net Acid Producing Potential (NAPP) prior to use on road construction or repair and must not be used if the pH is greater than or equal to 5 and a NAPP value less than or equal to 2kg H2SO4/tonne (calculated using oxidisable sulfur).
- H25
Prior to commencement of rehabilitation of any areas used for the disposal of reject or tailings, a plan showing the design criteria for the final landform must be submitted to the administering authority. Permit Environmental authority
- H26
Exploration Disturbance due to exploration activities in areas not authorised to be mined must be rehabilitated within two (2) years in accordance with provisions detailed in the Eligibility criteria and standard
- H27
Boreholes must be rehabilitated in accordance with the Eligibility criteria and standard conditions for
- H28
Subsidence A Subsidence Management Plan must be implemented and maintained during the continuation of this environmental authority. The subsidence management plan must, at a minimum: a) map existing areas of subsidence; b) map proposed areas of subsidence; c) identify the impacts of subsidence on the mining leases; d) detail rehabilitation and treatment methods applied to areas already subsided; e) detail rehabilitation and treatment methods proposed to be applied to future subsidence areas; and f) detail drainage and surface water ponding management to be applied to subsided land.
- H29
The holder of this environmental authority must arrange for each subsided longwall panel to be inspected annually by an appropriately qualified person, in accordance with Conditions H33 through H36, inclusive, of this environmental authority.
- H30
Prior to the commencement of activities that result in subsidence of a watercourse or adjoining floodplain, the subsidence management plan must be developed and implemented to provide for the proper and effective management of the actual and potential environmental impacts resulting from the mining activity and to ensure compliance with the conditions of this environmental authority. Permit Environmental authority
- H31
A watercourse subsidence management plan, for the subsidence of a watercourse or adjoining floodplain, must be developed to the satisfaction of the administering authority in accordance with Appendix 1, Attachment A of this environmental authority or any updates that become available from time to time and must include at least the following components: a) condition of the existing watercourse (including a baseline assessment); b) the proposed impacts of subsidence on the watercourse and floodplain including but not limited to: i) physical condition of surface drainages: 1) erosion; 2) areas susceptible to higher levels of erosion such as watercourse confluences; 3) incision processes; 4) stream widening; 5) tension cracking Lowering of bed and banks; 6) creation of in stream waterholes; 7) changes to local drainage patterns; ii) overland flow: 1) capture of overland flow by subsided long-wall panels; 2) increased overbank flows due to lowering of high bank of watercourses; 3) the portion of local and large scale catchment likely to be captured by subsided long-wall panels and the associated impacts on downstream users; iii) water quality: 1) surface water; 2) groundwater; 3) overland flow water detained in subsided long-wall panels; iv) land condition: current land condition to be impacted by subsidence; v) infrastructure: detail of existing infrastructure (pipelines, railway, power lines and haul roads) should be identified where there is a potential impact from effects of land subsidence; c) proposed options for mitigating any impacts associated with subsidence and how these mitigation methods will be implemented; d) a risk assessment;
- H32
The holder of this environmental authority must not commence subsidence of a longwall panel that will result in the subsidence of a watercourse or adjoining floodplain unless: a) the holder has submitted to the administering authority two copies of a watercourse subsidence management plan together with certification of an appropriately qualified person that the plan is compliant in all respects with this environmental authority and in accordance with engineering best practice; and b) at least twenty-eight (28) days has passed since the submission of the subsidence management plan. Permit Environmental authority
- H33
At each annual inspection required under Condition H29 the condition of each subsided longwall panel must be assessed, including the structural, geotechnical and hydraulic adequacy of the subsided longwall panel and the adequacy of the works with respect to the subsidence management plan.
- H34
For each inspection required under Condition H29 two copies of a report certified by the appropriately qualified person, including any recommendations to ensure the integrity of each subsided longwall panel must be provided to the administering authority within twenty (20) business days of receipt of the inspection report.
- H35
The report required under Condition H34 must detail any remedial works that have occurred and the resultant outcome from such works.
- H36
The holder of the environmental authority, if directed by the administering authority, must carry out any remedial works deemed necessary by the administering authority to minimise impact on the physical integrity of the landscape from the effects of subsidence.
- H37
Progressive certification a) Progressive certification of the application areas approved on 16 December 2020 are depicted in: i) Figure 2 - G5S progressive certification area as approved 16 December 2020 (total area 60.8ha); and ii) Figure 3 - Grasstree progressive certification area as approved 16 December 2020 (total area 72.0ha). b) Progressive certification of the application areas approved on 16 June 2022 are depicted in: i) Figure 5: A5 Landform (2001 IDR Section) (total area 128.67ha), A6 Landform (2009 IDR Section) (total area 71.41ha) and A6 North Seismic progressive certification area as approved 16 June 2022 (total area 232.68ha). c) Progressive certification of the application areas approved on 29 June 2023 are depicted in: i) Figure 6: G4 East progressive certification area as approved 29 June 2023 (total area 47.80ha); and ii) Figure 7: OC1 LW 22_25 progressive certification area as approved 29 June 2023 (total area 860.68ha). d) Progressive certification of the application areas approved on 3 March 2025 are depicted in: i) Figure 8: A7 South progressive certification area (total area 28.02 ha); ii) Figure 9: A3 East progressive certification area as approved 3 March 2025 (total area 47.38 ha); iii) Figure 10: A3 Mid progressive certification area as approved 3 March 2025 (total area 47.41 ha); iv) Figure 11: A4 South progressive certification area as approved 3 March 2025 (total area 31.84 ha); v) Figure 12: A4 North progressive certification area as approved 3 March 2025 (total area 28.84 ha); vi) Figure 13: G7 East progressive certification area as approved 3 March 2025 (total area 13.06 ha); vii) Figure 14: OCN LW1-10 progressive certification area as approved 3 March 2025 (total area 309.30 ha); and viii) Figure 15: OC1 LW25-33 progressive certification area as approved 3 March 2025 (total area 952.93 ha). Permit Environmental authority
- H38
The progressive certification areas specified in Condition H37 must be maintained in accordance with the completion criteria of safe, stable, non-polluting and self-sustaining as detailed in Appendix 2: Rehabilitation Requirements, until the surrender of this environmental authority is approved by the administering authority.
- H39
Internally Drained Rehabilitation (IDR) Land rehabilitated using IDR and depicted in Figure 4: Areas of mine rehabilitated using Internally Drained Rehabilitation (IDR) methodology up to 14 August 2014 must comply with the rehabilitation goals approved at the time rehabilitation works were completed. NOTE: IDR was a requirement of the Oaky Creek Environmental Authority until 14 August 2014. Areas rehabilitated prior to August 2014, shown in Figure 6, were implemented in accordance with the IDR methodology at the time of rehabilitation works. Permit Environmental authority Schedule I: Regulated Structures Condition Condition number
- I1
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 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.
- I2
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.
- I3
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
- I4
Design and construction1 of a regulated structure Conditions I5 to I9 inclusive do not apply to existing structures.
- I5
All regulated structures must be designed by, and constructed2 under the supervision of, a suitably qualified and experienced person in accordance with the requirements of the Manual for Assessing
- I6
Construction of a regulated structure is prohibited unless the holder has: a) submitted a consequence category assessment report and certification to the administering authority; b) received certification from 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 authority.
- I7
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 Register of Regulated Structures. 1 Construction of a dam includes modification of an existing dam -- refer to the definitions. 2 Certification of design and construction may be undertaken by different persons. Permit Environmental authority
- I8
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 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) for regulated dams that are dams associated with a failure to contain - seepage: 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.
- I9
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.
- I10
Operation of a regulated structure, except for an existing structure, is prohibited unless the 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 I7; b) a set of `as constructed' drawings and specifications; c) certification of those `as constructed drawings and specifications' in accordance with Condition I9; d) where the regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the DSA volume across the system, a copy of the certified system design plan; e) the requirements of this authority relating to the construction of the regulated structure have been met; f) the holder has entered the details required under this authority, into a Register of Regulated Structures; and g) there is a current operational plan for the regulated structures.
- I11
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 within twelve (12) months of the commencement of this condition a copy of the certified system design plan including that structure; and b) there must be a current operational plan for the existing structures.
- I12
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. Permit Environmental authority
- I13
Mandatory reporting level Conditions I14 to I17 inclusive only apply to regulated structures which have not been certified as low consequence category for `failure to contain - overtopping'.
- I14
The Mandatory Reporting Level (the MRL) must be marked on a regulated dam in such a way that during routine inspections of that dam, it is clearly observable.
- I15
The 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.
- I16
The 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.
- I17
The holder must record any changes to the MRL in the Register of Regulated Structures.
- I18
Design Storage Allowance The 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.
- I19
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 Design Storage Allowance (DSA) volume for the dam (or network of linked containment systems).
- I20
The 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.
- I21
The 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.
- I22
Annual Inspection report Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.
- I23
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.
- I24
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 Permit Environmental authority
- I25
The holder must: a) 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; and b) If, following receipt of the recommendations and (if applicable) actions, the administering authority requests a full copy of the annual inspection report from the holder, provide this to the administering authority within ten (10) business days of receipt of the request.
- I26
Transfer arrangements The holder must provide a copy of any reports, documentation and certifications prepared under this 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 authority.
- I27
Decommissioning and rehabilitation Dams must not be abandoned but be either: a) decommissioned and rehabilitated to achieve compliance with Condition I28; or b) be left in-situ for a beneficial use(s) provided that: i) it no longer contains contaminants that will migrate into the environment; ii) it contains water of a quality that is demonstrated to be suitable for its intended beneficial use(s); and iii) the administering authority, the holder of the environmental authority and the landholder agree in writing that the dam will be used by the landholder following the cessation of the environmentally relevant activity(ies).
- I28
After decommissioning, all significantly disturbed land caused by the carrying out of the environmentally relevant activity(ies) must be rehabilitated to meet the following final acceptance criteria: a) the landform is safe for humans and fauna; b) the landform is stable with no subsidence or erosion gullies for at least three (3) years; c) any contaminated land (e.g. contaminated soils) is remediated and rehabilitated; d) not allowing for acid mine drainage; e) there is no ongoing contamination to waters (including groundwater); f) rehabilitation is undertaken in a manner such that any actual or potential acid sulfate soils on the area of significant disturbance are treated to prevent or minimise environmental harm in accordance with the Instructions for the treatment and management of acid sulfate soils (2001); g) all significantly disturbed land is reinstated to the pre-disturbed land suitability class; and h) for land that is not being cultivated by the landholder: i) groundcover, that is not a declared pest species is established and self-sustaining; ii) vegetation of similar species richness and species diversity to pre-selected analogue sites is established and self-sustaining; iii) the maintenance requirements for rehabilitated land is no greater than that required for the land prior to its disturbance caused by carrying out the resource activities; and i) for land that is to be cultivated by the landholder, cover crop is revegetated, unless the landholder will be preparing the site for cropping within three (3) months of the resource activities being completed. Permit Environmental authority
- I29
Register of Regulated Dams A Register of Regulated Dams must be established and maintained by the holder for each regulated dam as per Conditions I30 to I34.
- I30
The 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.
- I31
The holder must make a final entry of the required information in the Register of Regulated Structures once compliance with Condition I10 to I12 has been achieved.
- I32
The holder must ensure that the information contained in the Register of Regulated Dams is current and complete on any given day.
- I33
All entries in the Register of Regulated Structures must be approved by the chief executive officer for the holder of this authority, or their delegate, as being accurate and correct.
- I34
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 Dams, in the electronic format required by the administering authority.
- I35
Transitional arrangements All existing structures that have not been assessed in accordance with either the Manual or the former Manual for Assessing Hazard 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 or the former Manual for Assessing Hazard amendment of the authority adopting this schedule.
- I36
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 requirements for existing structures, depending on the consequence category for each existing structure assessed in the most recent previous certification for that structure.
- I37
Table I1: Transitional hydraulic performance 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; b) It has been decommissioned; or c) It has been certified as no longer being assessed as a regulated structure.
- I38
Certification of the transitional assessment required by Conditions I35 and I36 (as applicable) must be provided to the administering authority within six (6) months of amendment of the environmental authority adopting this schedule. Permit Environmental authority Table I1: 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. Review consequence assessment every 7 years. performance in last 5 years >70%-90% Within 7 years, unless Within 10 years, unless No transitional conditions otherwise agreed with the otherwise agreed with the apply. Review consequence assessment every 7 years. administering authority, administering authority, based on no history of based on no history of unauthorised releases. unauthorised releases. 50-70% Within 5 years unless Within 7 years unless Review consequence otherwise agreed with the otherwise agreed with the assessment every 7 years. administering authority, administering authority, 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 years. (e.g. TEP timing) (e.g. TEP timing) Permit Environmental authority Schedule J: Community Condition Condition number
- J1
Complaint Response All complaints received must be recorded including investigations undertaken, conclusions formed and action taken.
- J2
The holder of this environmental authority must record the following details for all complaints received: a) name, address and contact number for complainant (if not available record - not identified); b) time and date of complaint; c) investigations undertaken; d) conclusions formed; e) actions taken to resolve complaint; f) any abatement measures implemented; and g) person responsible for resolving the complaint.
- J3
When requested by the administering authority, the environmental authority holder must undertake relevant specified monitoring within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint of environmental harm at any sensitive place or commercial place. The results of the investigation (including an analysis an interpretation of the monitoring results) and abatement measures implemented must be provided to the administering authority within fourteen (14) days of completion of the investigation.
- J4
In consultation with the administering authority, the environmental authority holder must cooperate with and participate in any community environmental liaison committee established in respect of either the licensed place specifically or the industrial estate where the licensed place is located. END OF CONDITIONS Permit Environmental authority 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. "accepted engineering standards" in relation to dams, means those standards of design, construction, operation and maintenance that are broadly accepted within the profession of engineering as being good practice for the purpose and application being considered. In the case of dams, the most relevant documents would be publications of the Australian National Committee on Large Dams (ANCOLD), guidelines published by Queensland government departments, and relevant Australian and New Zealand Standards. "acceptance criteria" means the measures by which the actions implemented to rehabilitate the land are deemed to be complete. The acceptance criteria indicate the success of the rehabilitation outcome or remediation of areas which have been significantly disturbed by the resource activities. Acceptance criteria may include information regarding: a) vegetation establishment, survival and succession; b) vegetation productivity, sustained growth and structure development; c) fauna colonisation and habitat development; d) ecosystem processes such as soil development and nutrient cycling, and the recolonisation of specific fauna groups such as collembola, mites and termites which are involved in these processes; e) microbiological studies including recolonisation by mycorrhizal fungi, microbial biomass and respiration; f) effects of various establishment treatments such as deep ripping, topsoil handling, seeding and fertiliser application on vegetation growth and development; g) resilience of vegetation to disease, insect attack, drought and fire; and h) vegetation water use and effects on ground water levels and catchment yields. "acid sulfate soil(s)" means a soil or soil horizon which contains sulfides or an acid soil horizon affected by oxidation of sulfides. "acid rock drainage" means any contaminated discharge emanating from a mining activity formed through a series of chemical and biological reactions, when geological strata is disturbed and exposed to oxygen and moisture as a result of mining activity. "AEP" means the Annual Exceedance Probability, which is the probability that at least one event in excess of a particular magnitude will occur in any given year. "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). "ANZECC" means the Australian and New Zealand Guidelines for Fresh Marine Water Quality 2000 "APPEA Code" means the current APPEA, Code of Environmental Practice.
- H38
- Demonstrate geotechnical - A vegetation assessment is completed by an AQP using a methodology as outlined in the stability. Queensland Mine Rehabilitation commissioner technical paper `Evaluating methods for assessing In-pit tailings and - Not exhibiting excessive native ecosystem mine rehabilitation success' reject emplacements (March 2023). erosion. - >70% total cover across rehabilitation area, - Rehabilitated landform includes multilevel canopy, groundcover, and leaf litter. (including land cover and water) is suitable for providing Open Woodland Achieve self-sustaining system that doesn't require additional maintenance except that of surrounding areas (e.g., weed and fire control via Permit Environmental authority grazing/pastoral - At least four native tree or shrub species across management, etc.). the rehabilitation area. - Evidence of recruitment of native tree species over a representative climatic period. Water storage for A3 Mid 3 and Cattle pit Long-term - Construct landforms that - Slopes 21%. stock watering lakes safety do not pose unacceptable - No highwalls are present in the landform hazards to humans, stock and wildlife. Non-polluting - Maintain regional surface - Groundwater monitoring will comply with the and ground water quality. trigger levels in Table D2 - Groundwater investigation - trigger levels of the EA. - Downstream surface water monitoring must comply with Condition C22 of the EA. Stable - Demonstrate geotechnical - No evidence of erosion classified as `moderate' or stability. `severe' as defined by Appendix 3 - Erosion - Not exhibiting excessive classification framework. erosion. Able to sustain - Provides suitable drinking - Pit lakes to remain for landholder use are safe for
- A6
North Seismic Area be managed by future Safe pH, EC, sodium, turbidity, metal levels in water samples based on local applicable analogue (Approved 16 June landholder. systems and compliant with EA conditions. 2022)^ Non-polluting - Maintain regional surface - Rill depth ( 0.3 m) or evidence of long-term stability. and ground water quality. > 70% of grass species and forb species of Stable - Not exhibiting excessive - applicable analogue sites. erosion. Grass cover > 70 % of applicable analogue site Herbage yield 70 % yield of applicable analogue Able to sustain - Able to sustain periods of - site. final land use Land suitability class 4 or better. managed intermittent light Recovery of yield following disturbance based on applicable analogue sites (50 % of analogue site grazing. - recovery). - Slopes are < 33 %. IDR pre 2003 - for slopes > 33%, geotechnical - assessment by a suitably qualified engineer to - determine treatments required (if applicable) to ensure an adequate long-term factor of safety. Terrestrial Progressive certification Long term - Construct landforms that - ecosystem services area: safety do not pose unacceptable - Safe pH/EC/sodium/turbidity/metal levels in water (open woodland) with G4 East (IDR) hazards to humans, stock samples based on local applicable analogue light grazing (Approved 29 June and wildlife. systems and compliant with EA conditions. 2023)$ Maintain regional surface - Rill depth ( 0.3 m) or evidence of long-term Non-polluting - and ground water quality. stability. Stable - Demonstrate geotechnical - and erosional stability. Permit Environmental authority - Not exhibiting excessive Able to sustain - final land use erosion. - Rehabilitated landform - 5% average canopy cover species across the rehabilitation area. (including land cover and At least four native tree or shrub species across the rehabilitation area. water) is suitable for - Evidence of recruitment of native species over a representative climatic period, nominally five providing Open Woodland years. Framework spp. remain following extreme to native fauna - weather events. Achieve self-sustaining Does not pose a high risk to stock or humans as determined by a suitably qualified person and system that doesn't Slopes 33 % require additional - Safe pH, EC, sodium, turbidity, metal levels in water samples based on local applicable analogue maintenance except that systems and compliant with EA conditions. of surrounding areas (e.g., Rill depth ( 0.3 m) or evidence of long-term
- A3
Mid, A4 South, A4 Construct landforms that - - Typical length 50m metres North and do not pose unacceptable - Minimum width/length 20m
- G7
East (all approved 3 hazards to humans, stock - Maximum width/length 80m. March 2025) and wildlife. - Typical depth (as constructed) 1-1.5m. - Minimum depth - 600mm - Angle of repose spoil are: - Typical vertical height between levels - 10 - 15m - Typical length of angle of repose spoil - 15 - 23m - Maximum vertical height between levels - 20m - Maximum length of angle of repose spoil - 30m - Minimum vertical height between different lines of spoil - 7m - Minimum length of angle of repose spoil between different lines of spoil - 10m Note: No angle of repose spoil in G7 East and A3 mid area at time of certification. - Slopes are: - < 33 %; or - IDR pre 2003 - for slopes >33%, geotechnical assessment by a suitably qualified engineer to determine treatments required (if applicable) to ensure an adequate long-term factor of safety Non-polluting - Maintain regional surface - Safe pH/EC/sodium/turbidity/metal levels in water and ground water quality. samples based on local applicable analogue systems and compliant with EA conditions. Stable - Demonstrate geotechnical - Pond volumes remain effectively unchanged over and erosional stability. three consecutive years. Permit Environmental authority - Not exhibiting excessive - At the time when the volume remains constant, the erosion. pond retains a general hyperboloidal shape and its Able to sustain - depth exceeds 1000mm. final land use - The absence of any pipe erosion where pipes report to angle of repose spoil or where the - - presence of the pipe could compromise the stability of the landform. - For angle of repose spoil: - - Angle of repose spoil would be deemed to - be stable when sheet erosion has