Data as at 14 September 2026 · from the Queensland EP Act public register
EPML00815613 · CENTURION COAL MINING PTY LTD
Coal environmental authority EPML00815613 (CENTURION COAL MINING PTY LTD), Granted. 171 conditions indexed. Holds PRC plan P-PRCP-100981610.
- Status
- Granted
- Holders
- CENTURION COAL MINING PTY LTD
- Tenures
- ML6949
- PRC plan
- P-PRCP-100981610 · effective 2025-11-21
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
171 numbered conditions read from the current instrument. Page numbers link into the register PDF.
- A1
Coal extraction The environmental authority holder is approved for a coal extraction rate of up to ten-point-two (10.2) million tonnes per annum (mtpa) of run-of-mine (ROM) ore in accordance with this environmental authority.
- A2
Prevent and/or minimise likelihood of environmental harm In carrying out the environmentally relevant activities, you 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. Note: This authority authorises the environmentally relevant activity. It does not authorise environmental harm unless a condition contained within this authority explicitly authorises that harm. Where there is no condition or the authority is silent on a matter, the lack of a condition or silence shall not be construed as authorising harm.
- 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; and d) ensure all instruments and devices used for the measurement or monitoring of any parameter under any condition of this environmental authority are properly calibrated.
- A4
No change, replacement or alteration of any plant or equipment is permitted if the change, replacement or alteration increases, or is likely to substantially increase, the risk of unlawful environmental harm caused by the mining activities. Note: Change in this case does not refer to trivial changes e.g. a larger and stronger item of equipment replaces a small and outdated item of equipment, it takes up a slightly larger area (i.e. creating a larger area of disturbance, covered by the estimated rehabilitation cost).
- A5
Monitoring and records Record, compile and keep for a minimum of five (5) years all monitoring results required by this environmental authority and make available for inspection all or any of these records upon request by the administering authority. Permit Environmental Authority EPML00815613 - Centurion Mine
- A6
Where monitoring is a requirement of this environmental authority, ensure that a competent person(s) conducts all monitoring.
- 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
As soon as practicable after becoming aware of any emergency, incident or information about circumstances which results or may result in environmental harm not in accordance with the conditions of this environmental authority, the administering authority must be notified in writing.
- 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
The notification of emergencies, incidents or circumstances (incident) which result or may result in environmental harm in accordance with Condition A9 must include but not be limited to the following: a) the holder of the environmental authority; b) the location of the incident; c) the number of the environmental authority; d) the name and telephone number of the designated contact person; e) the time of the incident; f) the time the holder of the environmental authority became aware of the incident; g) the suspected cause of the incident; h) the environmental harm caused, threatened, or suspected to be caused by the incident; and i) actions taken to prevent any further incident and mitigate any environmental harm caused by the incident.
- A12
Mining activities All land subject to mining activities must be rehabilitated to a non-polluting, safe, stable and self- sustaining landform.
- A13
Contaminants must not be released to the receiving environment unless they are in accordance with the contaminant limits authorised by this environmental authority. Permit Environmental Authority EPML00815613 - Centurion Mine
- A14
This environmental authority does not authorise environmental harm unless a condition contained within the authority explicitly authorises that harm. Where there is no condition or the authority is silent on a matter, the lack of a condition or silence shall not be construed as authorising harm.
- A15
The only mining activities to be carried out under this environmental authority are the mining activities defined within the parameters in Table A1 Mining Activities and identified in Figure 1 attached to this environmental authority. Note: Variation of mining activities to those identified within the conceptual designs is considered to be in accordance with these conditions as long as the variation is not significantly different to the conceptual design or causes a significant increase in environmental harm. Permit Environmental Authority EPML00815613 - Centurion Mine Table A1 Mining Activities Mine Domain Mine Feature Name Location Maximum Constraints (Lat and Long, disturbance area
- B1
Dust nuisance The release of dust or particulate matter or both resulting from the mining activity must not cause an environmental nuisance at any nuisance 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 dust sensitive 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, can be exceeded no more than five (5) times per year 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) in consultation with the administering authority and within an agreed timeframe, 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 mining activity must not cause an environmental nuisance at any nuisance 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 EPML00815613 - Centurion Mine
- B6
If the administering authority determines the odour released to constitute an environmental nuisance, then the environmental authority holder must: a) address the complaint including the use of appropriate dispute resolution if required; and b) in consultation with the administering authority and within an agreed timeframe, implement odour abatement measures so that emissions of odour from the activity do not result in further environmental nuisance. Permit Environmental Authority EPML00815613 - Centurion Mine Agency interest: 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 mining activities, except as permitted under the conditions of this environmental authority.
- C2
Unless otherwise permitted under the conditions of this environmental authority, the release of mine affected water to waters must only occur from the release points specified in Table C1 Mine Affected Water Release Points, Sources and Receiving Waters and depicted in Figure 2 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 C29 to C34 inclusive is permitted. Table C1 Mine Affected Water Release Points, Sources and Receiving Waters Release MGA Zone 55 MGA Zone 55 Mine Affected Water Monitoring Receiving waters Point (RP) Easting Northing Source and Point description (GDA94) (GDA94) Location RP 1 Dam Spillway Goonyella Creek 601,764 7,603,460 Eastern Sediment Dam Permit Environmental Authority EPML00815613 - Centurion Mine
- C4
The release of mine affected water to waters in accordance with Condition C2 must not exceed the release limits stated in Table C2 Mine Affected Water Release Limits 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 and frequency specified in Table C1 Mine Affected Water Release Points, Sources and Receiving Water for each quality characteristic specified in Table C2 Mine Affected Water Release Limits. 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 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 within 28 days to the administering authority via WaTERS, 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 C6(b)(ii) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic. Permit Environmental Authority EPML00815613 - Centurion Mine Table C2 Mine Affected Water Release Limits Quality Characteristic Release Limits Monitoring frequency Comment Electrical conductivity Release limits specified Daily during release (the first sample (-S/cm) in Table C4 must be taken within 2 hours of commencement of release) pH (pH Unit) 6.5 (minimum) Daily during release (the first sample 9.0 (maximum) must be taken within 2 hours of commencement of release) Suspended Solids 1,500 At commencement and prior to Suspended solids are required to (mg/L) cessation of release (at a minimum) measure the performance of sediment and weekly during a release2 and erosion control measures. Sulfate Release limits specified At commencement and prior to Drinking water environmental values (SO42-) (mg/L) in Table C4 cessation of release (at a minimum) from NHMRC 2006 guidelines or and weekly during a release2 ANZECC 2000 guidelines. Note: 1. Limit for suspended solids can be omitted if turbidity limit is included. Limit for turbidity not required if suspended solids limit included. Both indicators should be measured in all cases. 2. The determination of suitability for release of water should be informed by monitoring undertaken prior to release. Table C3 Release Contaminant Trigger Investigation Levels
- C7
If an exceedance in accordance with Condition C6 (b)(ii) is identified, the holder of the authority must notify the administering authority within fourteen (14) days of receiving the result via WaTERS.
- 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 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
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.
- C12
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.
- C13
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 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). Permit Environmental Authority EPML00815613 - Centurion Mine Table C4 Mine Affected Water Release during Flow Events Release Strategy 1 Release Strategy 2 Release Strategy 3 (Low Flow) (Medium Flow) (High Flow) Receiving Isaac River Goonyella Creek Isaac River Isaac River waters/stream (via Goonyella Creek) (via Goonyella Creek) (via Goonyella Creek) Release Point (RP) RP1 Gauging station Goonyella Gauging Gauging Station 1 Goonyella Gauging Goonyella Gauging Station Station Station #130414A DNRME 1, 2 #130414A DNRME 1, #130414A DNRME 1, 2 2 MGA Zone 55 600,400 602,910 600,400 600,400 Easting (GDA 94) MGA Zone 55 7,582,721 7,603,858 7,582,721 7,582,721 Northing (GDA94) Receiving Water <0.2m3/sec for a further 0.002m3/sec 0.2m3/sec 1.0m3/sec Flow Criteria for 28 days after natural discharge (m3/s) flow events that exceed 0.2m3/sec Maximum release 200 l/sec 20% of flow in 10% of flow in 10% of flow in rate receiving waters receiving waters receiving waters Receiving Water Daily as a minimum (Continuous monitoring where possible) Flow Recording Frequency Electrical Conductivity 500 3,000 3,500 5,000
- C14
The environmental authority holder must: 1. notify the administering authority via WaTERS as soon as practicable and nominally no later than twenty-four (24) hours after cessation of a release event of the cessation date/time and volume of a release notified under Condition C13; and 2. within twenty-eight (28) days submit a report to the administering authority via WaTERS to include the following information: 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 this environmental authority (i.e. contamination limits, natural flow, discharge volume); e) all in-situ and laboratory water quality monitoring results; and f) any other matters pertinent to the water release event. 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 C13 and C14, provided the relevant details of the release are included within the notification provided in accordance with Conditions C13 and C14.
- C15
Notification of release event exceedance If the release limits defined in Table C2 Mine Affected Water Release Limits are exceeded, the holder of the environmental authority must notify the administering authority via WaTERS within twenty-four (24) hours of receiving the results.
- C16
The 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 via WaTERS 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.
- C17
Water storage access by livestock Where practicable, the holder of the environmental authority must implement measures to prevent access by livestock to water storages which are associated with the release points listed in Table C1 Mine Affected Water Release Points, Sources and Receiving Waters.
- C18
Receiving environment monitoring and contaminant trigger levels The quality of the receiving waters must be monitored at the locations specified in Table C5 Receiving water upstream background sites and downstream monitoring points for each quality characteristic and at the monitoring frequency stated in Table C6 Receiving waters contaminant trigger levels. Permit Environmental Authority EPML00815613 - Centurion Mine Table C5 Receiving water upstream background sites and downstream monitoring points Monitoring Points Receiving Waters Location Description MGA Zone 55 MGA Zone 55 Easting (GDA 94) Northing (GDA94) Upstream Background Monitoring Points
- C19
If quality characteristics of the receiving water at the downstream monitoring points exceed any of the trigger levels specified in Table C6 Receiving waters contaminant trigger levels during a release event the environmental authority holder must compare the downstream results to the upstream results in the receiving waters and: a) where the downstream result is the same or a lower value than the upstream value for the quality characteristic then no action is to be taken; or b) where the downstream results exceed the upstream results, complete an investigation into the potential for environmental harm and provide a written report to the administering authority within 28 days via WaTERS, 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 C19(b), no further reporting is required for subsequent trigger events for that quality characteristic. Permit Environmental Authority EPML00815613 - Centurion Mine
- C20
The environmental authority holder must develop and implement a Receiving Environment Monitoring Program (REMP) to monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised mining activity. This must include monitoring the effects of the mine on the receiving environment periodically (under natural flow conditions) and while mine affected water is being discharged from the site. For the purposes of the REMP, the receiving environment is the waters of Goonyella Creek and connected or surrounding waterways within 10km downstream of the release. The REMP should encompass any sensitive receiving waters or environmental values downstream of the authorised mining activity that will potentially be directly affected by an authorised release of mine affected water.
- C21
The REMP must: a) assess the condition or state of receiving waters, including upstream conditions, spatially within the REMP area, considering background water quality characteristics based on accurate and reliable monitoring data that takes into consideration temporal variation (e.g. seasonality); b) be designed to facilitate assessment against water quality objectives for the relevant environmental values that need to be protected; c) include monitoring from background reference sites (e.g. upstream or background) and downstream sites from the release (as a minimum, the locations specified in Table C5 Receiving water upstream background sites and downstream monitoring points; d) specify the frequency and timing of sampling required in order to reliably assess ambient conditions and to provide sufficient data to derive site specific background reference values in accordance with the Queensland Water Quality Guidelines 2006. This should include monitoring during periods of natural flow irrespective of mine or other discharges; e) include monitoring and assessment of dissolved oxygen saturation, temperature and all water quality parameters listed in Table C2 Mine Affected Water Release Limits and Table C3 Release Contaminant Trigger Investigation Levels; and f) include, where appropriate, monitoring of metals/metalloids in sediments (in accordance with ANZECC & ARMCANZ 2000, BATLEY and/or the most recent version of AS5667.1 Guidance on Sampling of Bottom Sediments); g) include, where appropriate, monitoring of macroinvertebrates in accordance with the AusRivas methodology; h) apply procedures and/or guidelines from ANZECC & ARMCANZ 2000 and other relevant guideline documents; i) describe sampling and analysis methods and quality assurance and control; and j) incorporate stream flow and hydrological information in the interpretations of water quality and biological data.
- C22
A REMP Design Document that addresses each criterion presented in Conditions C20 and C21 must be maintained and submitted to the administering authority on request. Due consideration must be given to any comments made by the administering authority on the REMP Design Document and subsequent implementation of the program. Permit Environmental Authority EPML00815613 - Centurion Mine
- C23
A report outlining the findings of the REMP, including all monitoring results and interpretations in accordance with Condition C20 and C21, must be prepared annually and submitted annually to the administering authority via WaTERS. This must include an assessment of background reference water quality, the condition of downstream water quality compared against water quality objectives, and the suitability of current discharge limits to protect downstream environmental values.
- C24
Water Re-use Mine affected water may be piped or trucked or transferred by some other means that does not contravene the conditions of this environmental authority and deposited into artificial water storage structures, such as dams or tanks, or used directly at properties owned by the environmental authority holder or a third party (with the written consent of the third party).
- C25
Water general All determinations of water quality and biological monitoring must be: a) performed by a person or body possessing appropriate experience and qualifications to perform the required measurements; and Science's Monitoring and Sampling Manual; Note: Condition C25 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. c) collected from the monitoring locations identified within this environmental authority, within ten (10) hours of each other where possible; d) carried out on representative samples; and e) analysed at a laboratory accredited (e.g. NATA) for the method of analysis being used.
- C26
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 C29 to C34 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. Permit Environmental Authority EPML00815613 - Centurion Mine
- C27
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 via WaTERS in the specified format annually, by 10 September: 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.
- C28
Activities within watercourses Temporarily destroying native vegetation, excavating, or placing fill in a watercourse, lake or spring necessary for and associated with mining operations must be undertaken in accordance with Department of Natural Resources, Mines and Energy Guideline - Activities in a watercourse, lake or spring associated with a resource activity or mining operations.
- C29
Water Management Plan A Water Management Plan must be developed by an appropriately qualified person and implemented.
- C30
The Water Management Plan must: a) provide for effective management of actual and potential environmental impacts resulting from water management associated with the mining activity carried out under this environmental authority; and of water management plans for mining activities 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. Permit Environmental Authority EPML00815613 - Centurion Mine
- C31
The Water Management Plan must be reviewed each calendar year and a report prepared by an appropriately qualified person. The report must: a) assess the plan against the requirements under Condition C30; b) include recommended actions to ensure actual and potential environmental impacts are effectively managed for the coming year; and c) identify any amendments made to the water management plan following the review.
- C32
The holder of this environmental authority must attach to the review report required by Condition C31 a written response to the report and recommended actions, detailing the actions taken or to be taken by the environmental authority holder on stated dates: a) to ensure compliance with this environmental authority; and b) to prevent a recurrence of any non-compliance issues identified.
- C33
The review report required by Condition C31 and the written response to the review report required by Condition C32 must be submitted to the administering authority with the subsequent annual return under the signature of the appointed signatory for the annual return.
- C34
A copy of the Water Management Plan must be provided to the administering authority on request.
- C35
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.
- C36
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.
- C37
Stormwater and water sediment controls An Erosion and Sediment Control Plan must be developed by an appropriately qualified person and implemented for all stages of the mining activities on the site to minimise erosion and the release of sediment to receiving waters and contamination of stormwater.
- C38
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.
- C39
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.
- C40
Sewage effluent All effluent released from the treatment plant must be monitored at the frequency and for the parameters specified in Table C7 Sewage effluent quality targets for dust suppression and irrigation. Permit Environmental Authority EPML00815613 - Centurion Mine
- C41
Sewage effluent used for dust suppression or irrigation must not exceed sewage effluent release limits defined in Table C7 Sewage effluent quality targets for dust suppression and irrigation.
- C42
Sewage effluent used for dust suppression or irrigation must not cause spray drift or over spray to any sensitive or commercial place.
- C43
Subject to Conditions C40 to C42 inclusive, sewage effluent from sewage treatment facilities must be reused or evaporated and must not be directly released from the sewage treatment plant to any water way or drainage line.
- C44
The daily volume of contaminants released to land must be determined by an appropriate method, for example, a flow meter and records kept of such determinations.
- C45
The irrigation of treated 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. Table C7 Sewage effluent quality targets for dust suppression and irrigation Quality Characteristic Release Limit Units Limit Type Monitoring Frequency 5-day Biochemical Oxygen Demand 20 mg/L Maximum Monthly (uninhibited) Monthly Monthly pH 6.5 - 8.5 - Range Monthly mg/L Maximum Monthly Free Chlorine Residual 1 cfu/100mL Maximum Monthly mg/L Maximum Faecal Coliforms, based on the average of 1,000 mg/L Maximum a minimum of five samples collected Total Phosphorus 15 Total Nitrogen 30 Permit Environmental Authority EPML00815613 - Centurion Mine
- C46
Groundwater The holder of this environmental authority must not release contaminants to groundwater.
- C47
Groundwater standing water levels (SWL) must be monitored at the locations and frequencies defined in Table C8 Groundwater monitoring locations and frequency. Table C8 Groundwater monitoring locations and frequency Monitoring Point Latitude (GDA94) Longitude (GDA94) Monitoring Frequency GN2479 GN2480 600,200.1 7,605,302.578 Six-monthly GN2481 GN2482 603,205.16 7,607,502.323 Six-monthly VW01** VW02** 603,428.05 7,607,761.061 Six-monthly 603,134.4 7,608,349.718 Six-monthly TBA* TBA* Continuous TBA* TBA* Continuous Note: * To be commissioned by 31 December 2019. ** Continuous groundwater monitoring bores are to be installed in an adequate location in the South East quarter of Mining Lease ML6949, progressively ahead of underground mining, in the event that open cut mining is not to occur or underground mining is to progress in the South East quarter of ML6949.
- C48
In the event that groundwater fluctuations in excess of two metres per year are detected at the groundwater monitoring locations in Table 8 Groundwater monitoring locations and frequency, an investigation must be undertaken within fourteen (14) days of detection to determine if the fluctuations are a result of: a) mining activities; b) pumping from licensed bores; or c) seasonal variation.
- C49
If the results of the investigation undertaken in accordance with Condition C48 identify that the groundwater fluctuations are a result of mining activities, the holder of the environmental authority must notify the administering authority and provide a copy of a report detailing the findings and outcomes of the investigation within seven (7) days of completing the investigation.
- C50
The holder must inform the administering authority within twenty-eight (28) days of confirming an alluvial resource aquifer. A resource aquifer is defined as: a) electrical conductivity (-S/cm) <4,000; b) standing water level (SWL) <70m. Permit Environmental Authority EPML00815613 - Centurion Mine
- C51
Upon notifying the administering authority of an alluvial resource aquifer the holder of this environmental authority must develop and implement a background monitoring program in consultation with the administering authority for resource aquifer understanding and contaminant triggers.
- C52
The construction, maintenance, management and decommissioning of groundwater monitoring bores must be undertaken in a manner that prevents or minimises impacts to the environment and ensures the integrity of the bores to obtain accurate monitoring. Permit Environmental Authority EPML00815613 - Centurion Mine Agency interest: Noise Condition Condition number
- D1
Noise nuisance Noise from mining activities must not cause an environmental nuisance at any sensitive receptor or commercial place.
- D2
Noise from mining activities must not exceed the levels specified in Table D1 Noise limits at any sensitive receptor or commercial place.
- D3
Noise is not considered to be a nuisance under Condition D1 if monitoring shows that noise does not exceed the levels in the time periods specified in Table D1 Noise limits. Table D1 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 B/g + 5 B/g + 5 B/g + 3 LA10, adj, 10 mins 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 EPML00815613 - Centurion Mine
- D4
When requested by the administering authority, noise monitoring must be undertaken to investigate any complaint of noise nuisance (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised officer) and the results notified within fourteen (14) days to the administering authority. Monitoring must include: a) LA 10, adj, 10 mins b) LA 1, 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.
- D5
If monitoring indicates exceedance of the relevant limits in Condition D2, then the environmental authority holder must: a) address the complaint including the use of appropriate dispute resolution if required; and b) in consultation with the administering authority and within an agreed timeframe, implement noise abatement measures so that emissions of noise from the activity do not result in further environmental nuisance.
- D6
The method of measurement and reporting of noise monitoring must comply with the current edition of the administering authority's Noise Measurement Manual.
- D7
Vibration nuisance Vibration from the licensed activities must not cause an environmental nuisance at any sensitive or commercial place.
- D8
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.
- D9
Airblast overpressure nuisance The airblast overpressure level from blasting operations must not exceed the limits defined in Table
- D2
Airblast overpressure level at any nuisance sensitive or commercial place. Location Table D2 Airblast overpressure level Sensitive or commercial Airblast Overpressure Measured place Air blast overpressure level of 115 dB (linear) peak for 9 out of 10 consecutive blasts initiated and not greater than 120 dB (linear) peak at any time. Permit Environmental Authority EPML00815613 - Centurion Mine
- D10
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.
- D11
Airblast overpressure monitoring must include the following descriptors, characteristics and conditions: a) location of the blast(s) within the mining area (including which bench level); b) atmospheric conditions including temperature, relative humidity and wind speed and direction; and c) location, date and time of recording.
- D12
If monitoring indicates exceedance of the relevant limits in Table D2 Airblast overpressure level, then the environmental authority holder must: a) address the complaint including the use of appropriate dispute resolution if required; and b) in consultation with the administering authority and within an agreed timeframe, implement airblast overpressure abatement measures so that airblast overpressure from the activity does not result in further environmental nuisance.
- D13
The method of measurement and reporting of airblast overpressure levels must comply with the current edition of the administering authority's Noise Measurement Manual. Permit Environmental Authority EPML00815613 - Centurion Mine Agency interest: Waste Condition Condition number
- E1
Storage and disposal of tyres and conveyor belts Scrap tyres 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) metres from any other waste storage area, or combustible or flammable material, including vegetation.
- E2
All reasonable and practicable fire prevention measures must be implemented, including removal of grass and other materials within a ten (10) metre radius of the scrap tyre storage area.
- E3
Where no feasible recycling or waste-to-energy options are available, disposing of scrap tyres and conveyor belt resulting from the authorised activities in waste rock emplacements or the underground goaf is acceptable. Where disposed of in waste rock emplacements, tyres and rolls of conveyor belt must be placed as deep in the spoil as reasonably practicable. A record must be kept of the number and location for tyres and conveyor belt disposed.
- E4
Scrap tyres and conveyor belt resulting from the mining activities disposed of within the operational land must not impede saturated aquifers or compromise the stability of the consolidated landform. Permit Environmental Authority EPML00815613 - Centurion Mine
- E5
Waste Management A Waste Management Plan, in accordance with the Environmental Protection (Waste Management) Policy 2000, must be maintained and implemented and must: a) describe how North Goonyella Coal Mine recognises and applies the waste management hierarchy; b) identify characterisations of wastes generated from the project and general volume trends over the past five years; c) include a program for safe recycling or disposal of all wastes - reusing and recycling where possible; d) identify waste commitments with auditable targets to reduce, reuse and recycle; e) the waste management control strategies must 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; f) identify the potential adverse and beneficial impacts of the wastes generated; g) detail the hazardous characteristics of the waste generated (if any); i) cover a disposal procedure for hazardous wastes ii) outline the process to be implemented to allow for continuous improvement of the waste management systems; iii) identify responsible staff (positions) for implementing, managing and reporting the Waste Management Plan; and iv) cover a staff awareness and induction program that encourages re-use and recycling.
- E6
Waste must not be burnt or be allowed to burn on the licensed site unless permitted by the administering authority.
- E7
A designated area must be set aside for the segregation of economically viable, recyclable solid and liquid waste.
- E8
Records of trade and regulated wastes or material leaving the mining lease for recycling or disposal, including the final destination and method of treatment, must be in accordance with the Environmental Protection (Waste Management) Policy 2000.
- E9
All regulated waste received at and removed from the site must be transported by a person who holds a current authority to transport such waste under the provisions of the Environmental Protection Act 1994.
- E10
Except as otherwise provided by the conditions of this authority, all waste removed from the site must be taken to a facility that is lawfully allowed to accept such waste under the provisions of the Environmental Protection Act 1994. Permit Environmental Authority EPML00815613 - Centurion Mine
- E11
The holder of this environmental authority may burn vegetation cleared in the course of carrying out mining activities provided the activity does not cause environmental harm at any sensitive place or commercial place.
- E12
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. 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. Permit Environmental Authority EPML00815613 - Centurion Mine Agency interest: Land Condition Condition number
- F1
Preventing contaminant release to land Contaminants must not be released to land in a manner which constitutes nuisance, material or serious environmental harm.
- F2
Topsoil Topsoil must be strategically stripped ahead of mining in accordance with a topsoil management plan.
- F3
Topsoil and subsoils must be managed to ensure stability and minimise the release of contaminants. Measures must include: a) vegetating stockpiles; b) minimising the height of stockpiles; and c) re-using stockpiles as soon as possible.
- F4
A topsoil inventory which identifies the topsoil requirements for the North Goonyella Coal Mine and availability of suitable topsoil on site must be detailed in the estimated rehabilitation cost.
- F5
Overburden The characteristics of overburden must be determined prior to disturbance by mining activities to a standard sufficient to enable selective handling of materials if required.
- F6
Rehabilitation landform criteria All areas significantly disturbed by mining activities must be rehabilitated to a stable landform with a self-sustaining vegetation cover in accordance with Table F1 Final land use and rehabilitation approval schedule.
- F7
Progressive rehabilitation must commence within twelve (12) months of when areas become available within the operational land.
- F8
The environmental authority holder must maintain and implement the proposed acceptance criteria identified in the Rehabilitation Management Plan required by Condition F10. Acceptance criteria for rehabilitation of disturbed areas must meet the following outcomes: a) areas which are to be progressively rehabilitated to a native ecosystem must be self-sustaining and established with a species composition and distribution similar to appropriate reference sites; b) areas which are to be progressively rehabilitated to a grazing pasture must have self-sustaining vegetative protective cover with a species composition and distribution similar to appropriate reference sites; and c) all areas disturbed by mining activities must be rehabilitated to the design criteria outlined in the Rehabilitation Management Plan required by Condition F10. Permit Environmental Authority EPML00815613 - Centurion Mine
- F9
Co-disposal areas on the mining lease must be capped with one (1) metre of inert material and revegetated in accordance with available and recognised best practices following the cessation of their use in a manner that will encourage run-off. Table F1 Final land use and rehabilitation approval schedule Disturbance Type Post Mining Land Use Post Mine Land Use Classification1 Subsidence areas Cattle Grazing Class 2 or 3 grazing land Co-disposal Native Bushland N/A Main Retention Dam Stock and Fauna N/A Watering Raw Water Dam Cattle Grazing Class 2 or 3 grazing land Internal Roads and Tracks Cattle Grazing Class 2 or 3 grazing land Coarse Rejects Areas Native Bushland N/A Sewage Treatment Plant Cattle Grazing Class 2 or 3 grazing land Ventilation shafts and Exploration and Cattle Grazing Class 2 or 3 grazing land Service Other Infrastructure Areas Cattle Grazing Class 2 or 3 grazing land Final Void N/A N/A EWRE Native Bushland N/A IWRE Native Bushland N/A Note: 1. Land Suitability Classification in accordance with Shields and Williams (1991) and DME (1995b). Permit Environmental Authority EPML00815613 - Centurion Mine
- F10
Rehabilitation Management Plan The holder of this environmental authority must submit a Rehabilitation Management Plan to the administering authority by 31 December 2020 for review and comment. The Rehabilitation Management Plan will propose rehabilitation performance criteria which will be refined during the life of the mine based on leading practice improvements, rehabilitation trials and the monitoring of progressive rehabilitation. The Rehabilitation Management Plan must, at a minimum: a) map existing areas of rehabilitation; b) develop design objectives for rehabilitation of disturbed areas and post mining land uses across the mine; c) specify waste rock characteristics, soil analysis, soil separation for use on rehabilitation; d) detail rehabilitation methods to be applied to areas; e) contain landform design criteria including end of mine design; f) detail how landform design will be consistent with the surrounding topography; g) include figures of the final landform that illustrate contours, internal surface drainage patterns, appropriate drop structures and runoff retention features; h) include cross-sections of the final landform at appropriate intervals; i) identify success criteria for areas and itemise revegetation criteria; j) explain planned native vegetation rehabilitation areas and corridors; k) identify at least a minimum of three (3) reference and three (3) rehabilitation sites to be used to develop rehabilitation success criteria; l) describe rehabilitation indicators and the monitoring program to be used; m) develop a contingency plan for rehabilitation maintenance or redesign; n) describe end of mine landform design plan and post mining land uses across the mine; o) include a cost benefit analysis/triple bottom line assessment (or an alternative assessment method) of the proposed final landform design criteria and alternatives; p) propose Endangered Regional Ecosystem (ERE) management and offset protection; and q) identify and consider the potential for cumulative impacts on rehabilitation outcomes as a result of applying mine affected water with high electrical conductivity for dust suppression.
- F11
Rehabilitation monitoring program Once rehabilitation has commenced, the holder of the environmental authority must conduct a Rehabilitation Monitoring Program, which must include sufficient spatial and temporal replication to enable statistically valid conclusions as established under the rehabilitation program.
- F12
The Rehabilitation Monitoring Program must be developed and implemented by a person possessing appropriate qualifications and experience in the field of rehabilitation management, nominated by the environmental authority holder.
- F13
Post closure management plan A Post Closure Management Plan for the site must be prepared at least eighteen (18) months prior to the final coal processing on site and implemented for a nominal period of: a) at least thirty (30) years following final coal processing on site; or b) a shorter period if the site is proven to be geotechnically and geochemically stable and it can be demonstrated to the satisfaction of the administering authority that no release of contaminants from the site will result in environmental harm. Permit Environmental Authority EPML00815613 - Centurion Mine
- F14
The Post Closure Management Plan must include the following elements: a) operation and maintenance of: i) wastewater collection and reticulation systems; ii) wastewater treatment systems; iii) the groundwater monitoring network; iv) final cover systems; and v) vegetative cover. b) monitoring of: i) surface water quality; ii) groundwater quality; iii) seepage rates; iv) erosion rates; v) the integrity and effectiveness of final cover systems; and vi) the health and resilience of native vegetation cover.
- F15
Acid rock drainage and leachate management Subject to the release limits defined in Department Interest: Water, all reasonable and practicable measures must be implemented to prevent hazardous leachate being directly or indirectly released or likely to be released as a result of the activity to any groundwater.
- F16
Chemicals and flammable or combustible liquids All flammable and combustible liquids must be contained within an on-site containment system and controlled in a manner that prevents environmental harm and maintained in accordance with the current version of AS 1940 - Storage and Handling of Flammable and Combustible Liquids.
- F17
Flammable and combustible liquid spills must be controlled in a manner that prevents environmental harm.
- F18
All chemicals must be contained within an on-site containment system and controlled in a manner that prevents environmental harm and maintained in accordance with the current version of the relevant Australian Standard.
- F19
Chemical spills must be controlled in a manner that prevents environmental harm.
- F20
All explosives, corrosive substances, toxic substances, gases and dangerous goods must be stored and handled in accordance with the relevant Australian Standard.
- F21
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.
- F22
Anyone operating with wastes, chemicals or flammable and combustible liquids under this approval must be trained in the use of the spill kit. Permit Environmental Authority EPML00815613 - Centurion Mine
- F23
Accommodation camp This environmental authority authorises the construction and use of a temporary accommodation camp on ML6949. The camp must be located within the control points defined in Table F2 Location of temporary accommodation camp.
- F24
The temporary accommodation camp may be utilised for a period of twenty-four (24) months including commissioning and decommissioning. Email notification must be sent to the administering authority at the commencement of commissioning and completion of decommissioning of the camp. Post decommissioning, the area must be rehabilitated in accordance with the conditions of this schedule.
- F25
Infrastructure All infrastructure, constructed by or for the environmental authority holder during the licensed 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. Table F2 Location of temporary accommodation camp GDA94 Point Easting Northing SE 603,556 7,605,488 SW 603,257 7,605,488 NE 603,556 7,606,034 NW 603,257 7,605,918 Permit Environmental Authority EPML00815613 - Centurion Mine
- F26
Subsidence Management The use of Long Wall Top Coal Cave underground mining technology and method is authorised for use within the extraction of the Goonyella Middle coal seam only.
- F27
A third party certified Subsidence Management Strategy must be developed, implemented and submitted to the regulatory authority, by the holder of this environmental authority twenty-eight (28) days prior to the Longwall 8 retreat reaching 1700 chainage. Note: The Subsidence Management Strategy must be developed to the satisfaction of the administering authority in accordance with the departmental guideline entitled Watercourse Subsidence - Central Queensland Mining Industry.
- F28
The Subsidence Management Strategy must include the following components: a) baseline condition assessment of the existing watercourse(s); b) assessment of 1st to 4th order impacts on Goonyella Creek and associated tributaries: i) 1st order - direct effects of subsidence (vertical and horizontal extents of changes to land surface); ii) 2nd order - predicted geomorphic response of surface water systems to 1st order impacts; iii) 3rd order - predicted impacts to water quantity and quality from 1st and 2nd order impacts; iv) 4th order - predicted impacts to flora and fauna from 1st to 3rd order impacts; v) the current land surface area to be impacted by subsidence; vi) infrastructure; c) risk assessment; d) proposed options for mitigating any impacts; and e) monitoring, evaluation and maintenance programs.
- F29
Subsidence Panel Plan and Inspection Upon third party certification of the Subsidence Management Strategy a Subsidence Panel Plan must be developed for Longwall 8 retreat by 1700 chainage.
- F30
A Subsidence Panel Plan must be developed for each longwall panel prior to the commencement of longwall extraction. The Subsidence Panel Plan must include specific details for the mitigation of environmental harm with respect to the Subsidence Management Strategy (Condition F28). The Subsidence Panel Plan must include an inspection of the previously mined panel by a suitability qualified and experienced person. The inspection must assess: a) 1st to 4th order impacts; and b) the adequacy of the works with respect to the previous panel plans.
- F31
Subsidence Reporting For each Subsidence Panel Plan, a report must be provided to the administering authority upon request. Permit Environmental Authority EPML00815613 - Centurion Mine Agency interest: Regulated Structures Condition Condition number
- G1
Assessment of consequence category The consequence category of any structure must be assessed by a suitably qualified and experienced person in accordance with the Manual for Assessing Consequence Categories and Hydraulic a) prior to the design and construction of the structure, if it is not an existing structure; or b) if it is an existing structure, prior to the adoption of this schedule; or c) prior to any change in its purpose or the nature of its stored contents.
- G2
A consequence assessment report and certification must be prepared for each structure assessed and the report may include a consequence assessment for more than one structure.
- G3
Certification must be provided by the suitably qualified and experienced person who undertook the assessment, in the form set out in the Manual for Assessing Consequence Categories and Hydraulic
- G4
Conditions G5 to G9 inclusive do not apply to existing structures.
- G5
All regulated structures must be designed by, and constructed under the supervision of, a suitably qualified and experienced person in accordance with the requirements of the Manual for Assessing
- G6
Construction of a regulated structure is prohibited unless the holder has submitted a consequence category assessment report and certification to the administering authority has been certified by a suitably qualified and experienced person for the design and design plan and the associated operating procedures in compliance with the relevant condition of this authority.
- G7
Certification must be provided by the suitably qualified and experienced person who oversees the preparation of the design plan in the form set out in the Manual for Assessing Consequence Regulated Dams/Levees register.
- G8
Regulated structures must: a) be designed and constructed in accordance with and conform to the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures b) be designed and constructed with due consideration given to ensuring that the design integrity would not be compromised on account of: i) floodwaters from entering the regulated dam from any watercourse or drainage line; and ii) wall failure due to erosion by floodwaters arising from any watercourse or drainage line. c) have the floor and sides of any dam regulated for failure to contain - seepage 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. Permit Environmental Authority EPML00815613 - Centurion Mine
- G9
Certification by the suitably qualified and experienced person who supervises the construction must be submitted to the administering authority on the completion of construction of the regulated structure, and state that: a) the 'as constructed' drawings and specifications meet the original intent of the design plan for that regulated structure; b) construction of the regulated structure is in accordance with the design plan.
- G10
Operation of a regulated structure Operation of a regulated structure, except for an existing structure, is prohibited unless the holder has submitted to the administering authority: a) one electronic copy of the design plan and certification of the `design plan' in accordance with Condition G6; b) a set of `as constructed' drawings and specifications; c) certification of those `as constructed drawings and specifications' in accordance with Condition G9; 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.
- G11
For existing structures that are regulated structures: a) where the existing structure that is a regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the DSA volume across the system, the holder must submit to the administering authority 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.
- G12
Each regulated structure must be maintained and operated, for the duration of its operational life until decommissioned and rehabilitated, in a manner that is consistent with the current operational plan and, if applicable, the current design plan and associated certified `as constructed' drawings.
- G13
Conditions G14 to G17 inclusive only apply to Regulated Structures which have not been certified as low consequence category for `failure to contain - overtopping'.
- G14
The Mandatory Reporting Level (the MRL) must be marked on a regulated dam in such a way that during routine inspections of that dam, it is clearly observable.
- G15
The holder must, as soon as practical and within forty-eight (48) hours of becoming aware, notify the administering authority when the level of the contents of a regulated dam reaches the MRL.
- G16
The 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. Permit Environmental Authority EPML00815613 - Centurion Mine
- G17
The holder must record any changes to the MRL in the Register of Regulated Structures.
- G18
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.
- G19
By 1 November of each year, storage capacity must be available in each regulated dam (or network of linked containment systems with a shared DSA volume), to meet the Design Storage Allowance (DSA) volume for the dam (or network of linked containment systems).
- G20
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.
- G21
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.
- G22
Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.
- G23
At each annual inspection, the condition and adequacy of all components of the regulated structure must be assessed and a suitably qualified and experienced person must prepare an annual inspection report containing details of the assessment and include recommended actions to ensure the integrity of the regulated structure.
- G24
The suitably qualified and experienced person who prepared the annual inspection report must certify the report in accordance with the Manual for Assessing Consequence Categories and Hydraulic
- G25
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; and 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.
- G26
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. Permit Environmental Authority EPML00815613 - Centurion Mine
- G27
Decommissioning and rehabilitation Regulated dams must not be abandoned but be either: a) decommissioned and rehabilitated to achieve compliance with Condition G28; 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; and 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).
- G28
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; or 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 soil suitability class; 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, and 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 petroleum activity(ies). 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 3 months of petroleum activities being completed.
- G29
Register of Regulated Structures A Register of Regulated Structures must be established and maintained by the holder for each regulated dam.
- G30
The holder must provisionally enter the required information in the Register of Regulated Structures when a design plan for a regulated structure is submitted to the administering authority.
- G31
The holder must make a final entry of the required information in the Register of Regulated Structures once compliance with Conditions G10 and G11 has been achieved.
- G32
The holder must ensure that the information contained in the Register of Regulated Structures is current and complete on any given day.
- G33
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. Permit Environmental Authority EPML00815613 - Centurion Mine
- G34
The holder must, at the same time as providing the annual return, supply to the administering authority a copy of the records contained in the Register of Regulated Structures, in the electronic format required by the administering authority.
- G35
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 Dams must be assessed and certified in accordance with the Manual within 6 months of amendment of the authority adopting this schedule.
- G36
All existing structures must subsequently comply with the timetable for any further assessments in accordance with the Manual specified in Table G1 Transitional hydraulic performance requirements for existing structures, depending on the consequence category for each existing structure assessed in the most recent previous certification for that structure.
- G37
Table G1 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; or b) it has been decommissioned; or c) it has been certified as no longer being assessed as a regulated structure.
- G38
Certification of the transitional assessment required by Conditions G35 and G36 (as applicable) must be provided to the administering authority within six (6) months of amendment of the authority adopting this schedule. Permit Environmental Authority EPML00815613 - Centurion Mine Table G1 Transitional hydraulic performance requirements for existing structures Transition period required for existing structures to achieve the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Dams Compliance with High Significant Low criteria >90% and a history of No transition required No transition required No transitional conditions good compliance apply. Review performance in last 5 Within 7 years, unless Within 10 years, unless consequence years otherwise agreed with otherwise agreed with assessment every 7 >70%-90% the administering the administering years. authority, based on no authority, based on no No transitional conditions 50-70% history of unauthorised history of unauthorised apply. Review releases. releases. consequence 50% Within 5 years unless Within 7 years unless assessment every 7 otherwise agreed with otherwise agreed with years. the administering the administering authority, based on no authority, based on no Review consequence history of unauthorised history of unauthorised assessment every 7 releases. releases. years. Within 5 years or as per Within 5 years or as per compliance requirements compliance requirements Review consequence (e.g. TEP timing) (e.g. TEP timing) assessment every 5 years. Permit Environmental Authority EPML00815613 - Centurion Mine Agency interest: Community Condition Condition number
- H1
Complaint response All complaints received must be recorded including investigations undertaken, conclusions formed and action taken. This information must be made available to the administering authority on request.
- H2
The holder of this environmental authority must record the following details for all complaints received and provide this information to the administering authority on request: a) time, date, name and contact details of the complainant; b) reasons for the complaint; c) conclusions formed; and d) any actions taken.
- H3
In consultation with the administering authority, 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 EPML00815613 - Centurion Mine Definitions Key terms and/or phrases used in this document are defined in this section. Where a term is not defined, the definition in the Environmental Protection Act 1994, its regulations or environmental protection policies must be used. If a word remains undefined it has its ordinary meaning. 20th percentile flow means the 20th percentile of all daily flow measurements (or estimations) of daily flow over a 10 year period for a particular site. The 20th percentile calculation should only include days where flow has been measured (or estimated), i.e. not dry weather days. 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 mining 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 groundwater levels and catchment yields. Accepted engineering standards 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. 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. successor. Affected person is someone whose drinking water can potentially be impacted as a result of discharges from a dam or their life can be put at risk due to dwellings or workplaces being in the path of a dam break flood. 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 (dB). Ambient (or total) noise at a place, means the level of noise at the place from all sources (near and far), measured as the Leq for an appropriate time interval. Annual exceedance probability or AEP the probability that at least one event in excess of a particular magnitude will occur in any given year. Permit