Data as at 14 September 2026 · from the Queensland EP Act public register
EPML01470513 · ADANI MINING PTY LTD
Coal environmental authority EPML01470513 (ADANI MINING PTY LTD), Granted. 164 conditions indexed. Holds PRC plan P-PRCP-100988907.
- Status
- Granted
- Holders
- ADANI MINING PTY LTD
- Tenures
- ML70441; ML70505; ML70506
- PRC plan
- P-PRCP-100988907 · effective 2025-12-17
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
164 numbered conditions read from the current instrument. Page numbers link into the register PDF.
- A1
This environmental authority authorises the 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. Scope of activity
- A2
The environmental authority holder is approved to extract coal at a rate of up to 74.5 million tonnes per year (Mtpa) of run-of-mine (ROM) coal in accordance with this environmental authority.
- A3
In carrying out mining activity(ies) authorised by this environmental authority, the environmental authority holder must comply with Table A1 - Mining Domains, and Figures A1 to A2. Permit Environmental authority Table A1 - Mining domains Maximum Disturbance Areas (ha) Mine Domain Location Domain Total Area (ha) Maximum Open-cut voids Disturbance and slopes Year 1-10 Year 11-20 Year 21-60 Area (ha) Illustrated in 8167.96 3565.97 2011.95 2590.04 8167.96 Figure A1 Underground Illustrated in 7786.78 1931.95 3030.16 2824.67 7786.78 mining and Figure A1 subsidence boundary Mine Illustrated in 2212.90 2091.26 110.42 11.22 2212.90 infrastructure Figure A1 Out-of-pit spoil Illustrated in 7877.90 6172.31 1670.8 34.79 7877.90 dumps Figure A1 1469.29 1190.22 230.69 48.38 1469.29 451.33 390.99 60.34 451.33 Water storage Illustrated in 0 areas, including Figure A1 MAW dams, raw water dams Stream Illustrated in diversions Figure A1 Tailings drying Illustrated in 0.0 0.0 0 0 0.0 cell Figure A1 Carmichael Illustrated in 1799.02 50.78 0 0 50.78 River corridor Figure A1 and levees Carmichael Illustrated in 1748.24 0 0 0 0 River Figure A1 Exploration* Illustrated in NA* 40.51 0 0 40.51 Figure A2 Total 28,057.45 *The exploration domain is outside of domains illustrated in Figure A1. Permit Environmental authority
- A4
The environmental authority holder must: a) install measures, plant and equipment necessary to ensure compliance with the conditions of this environmental authority; b) maintain such measures, plant and equipment in a proper and efficient condition; c) operate such measures, plant and equipment in a proper manner; and d) ensure all instruments and devices used for measurement or monitoring under any condition of this environmental authority are properly calibrated. Plans, Programs and Reports
- A5
All plans, programs, and reports required by this environmental authority must be prepared by an appropriately qualified person, including any subsequent review. A copy must be submitted to the administering authority upon request. All plans, programs and reports must be kept until surrender of this environmental authority. Monitoring, Monitoring Records and Determinations
- A6
All monitoring and determinations required by this environmental authority must be performed by a suitably qualified person and copies of monitoring records must be submitted to the administering authority upon request. Monitoring records must be kept for a period of not less than 5 years. Risk Management
- A7
The environmental authority holder must develop and implement a risk management system for mining activities which mirrors the content requirement of the Standard for Risk Management (ISO31000:2009), or the latest edition of an Australian standard for risk management, to the extent relevant to environmental management. Notification of Emergencies, Incidents and Exceptions
- A8
The environmental authority holder must notify the administering authority in writing within 24 hours after becoming aware of any emergency or incident that causes or threatens serious or material environmental harm or the release of contaminants not in accordance, or reasonably expected to be not in accordance with the conditions of this environmental authority.
- A9
Within 10 business days following the initial notification of an emergency or incident made under condition A8, or receipt of monitoring results, whichever is the latter, further written advice must be provided to the administering authority, including the following: a) results and interpretation of all samples taken and analysed; b) outcomes of actions taken to prevent or minimise unlawful environmental harm; and c) proposed actions to prevent a recurrence of the emergency or incident. Complaints
- A10
The environmental authority holder must record all environmental complaints received about the mining activities including: a) name, address and contact number of the complainant; b) time and date of complaint; c) reasons for the complaint; d) investigations undertaken; e) conclusions formed; f) actions taken to resolve the complaint; g) any abatement measures implemented; and h) person(s) responsible for resolving the complaint.
- A11
The environmental authority holder must, when requested by the administering authority, undertake relevant specified monitoring within a reasonable timeframe nominated or agreed to by the administering authority to investigate any complaint of environmental harm. The results of the investigation (including an analysis and interpretation of the monitoring results) and abatement measures, where implemented, must be provided to the administering authority within 10 business days of completion of the investigation, or no later than 10 business days after the end of the timeframe nominated by the administering authority to undertake the investigation. Permit Environmental authority Third Party Reporting
- A12
The environmental authority holder must: a) obtain a report on compliance with the conditions of this environmental authority at intervals not exceeding 3 yearly intervals from 30 October 2018; and b) provide each report to the administering authority within 90 days of its completion.
- A13
Where environmental authority conditions require compliance with a document published externally to this environmental authority, and the document is amended or changed subsequent to the issue of this environmental authority, the environmental authority holder 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 document; and b) until compliance with the amended or changed document 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 The release of dust, particulate matter, or both, resulting from activities authorised by this
- C1
administering authority; and in accordance with relevant standard operating procedure(s), waste must not be burnt.
- C2
The environmental authority holder may burn vegetation cleared in the course of carrying out extraction activities provided the activity does not cause environmental harm at any sensitive place or commercial place. Tailings disposal
- C3
A tailings management plan must be prepared prior to the production of tailings. The tailings management plan must include provisions for: a) containment of tailings; b) the management of seepage and leachates during operation or independently certified that tailings are safe stable and non-polluting; c) the control of fugitive emissions to air; d) a program of progressive sampling and characterisation to identify acid producing potential and metal concentrations of tailings; e) maintaining records of the relative locations of any other waste stored within the tailings; f) rehabilitation strategy; and g) monitoring of rehabilitation to verify the requirements and methods for decommissioning and final rehabilitation of tailings, including the prevention and management of acid mine drainage, erosion minimisation and establishment of vegetation cover. The tailings management plan must be implemented. Other Prescribed Waste Stream/s
- C4
Acid sulfate soils must be treated and managed in accordance with the latest edition of the Queensland Acid Sulfate Soil Technical Manual.
- C5
Unless otherwise specified in Table C1 Mining Waste, waste, other than spoil or overburden or vegetation removed as part of the mining activity, must not be disposed of within the mining leases listed on this environmental authority and must be taken to a facility that is lawfully allowed to accept such waste under the provisions of the Environmental Protection Act 1994.
- C6
Waste management plan The holder of this Environmental Authority must develop, document and implement a waste management program for all mining activities at the licenced place. Permit Environmental authority
- C7
The plan must include: a) a description of the mining activity that may generate waste; and b) waste management control strategies including: i) recording of the types and amounts of wastes generated by the mining activity; ii) segregation of the wastes; iii) storage of the wastes; iv) transport of the wastes; v) disposal of waste including leachate management; and vi) monitoring and reporting matters concerning the waste; and c) the hazard characteristics of the wastes generated including disposal procedures for regulated wastes; and d) a program for reusing, recycling or disposing of all wastes; and e) how the waste will be dealt with in accordance with the waste and resource management hierarchy, including a description of the types and amounts of waste that will be dealt with under each of the waste management practices in the waste management hierarchy (i.e. avoidance, reuse, recycling, energy recovery, disposal); and f) how the waste will be stored, handled and transferred in a proper and effective manner; and g) procedures for identifying and implementing opportunities to minimise the amount of waste generated, promote efficiency in the use of resources and improve the waste management practices employed; and h) procedures for dealing with accidents, spills, and other incidents that may impact on waste management; and i) details of any accredited management system employed, or planned to be employed, to deal with the waste; and j) how often the performance of the waste management practices will be assessed; and k) indicators or other criteria on which the performance of the waste management practices will be assessed; and l) staff training and induction to the waste management program; and m) a system for regular review; and n) be updated at intervals of no greater than 5 years.
- C8
Bioremediation of Waste The environmental authority holder may establish a land farm to undertake bioremediation of soil contaminated with hydrocarbon waste generated onsite.
- C9
The EA holder must implement a Bioremediation Land Farm Management plan prior to the commencement of bioremediation activities.
- C10
The Bioremediation Land Farm Management plan required in accordance with Condition C9 must be developed by a suitably qualified person and must include: a) framework to ensure only waste suitable for bioremediation is accepted for storage and processing b) procedures and guidelines for the acceptance, handling, storage and processing of regulated waste at the designated bioremediation area; c) identify potential risks to the environment from the activity during routine operations, closure and emergencies; d) control measures that minimise the potential for environmental harm; e) control measures that ensure staff are trained in and aware of their obligations under the Environmental Protection Act 1994.
- C11
The environmental authority holder must maintain a record of all waste accepted and treated at the Bioremediation Land Farm including: a) date waste was accepted b) type of waste c) origin of waste d) quantity of waste e) chemical composition of waste f) type of contamination g) laboratory test results (where available). Permit Environmental authority Waste type Table C1 - Mining Wastes Authorised Disposal Location Inert Waste including concrete waste Disposal on mining leases within Out of Pits Dumps Scrap Tyres Storage waiting disposal on mining leases and disposal within Out of Pits Dumps Permit Environmental authority Schedule D: Noise Condition Condition number
- D1
The environmental authority holder must ensure that noise generated by the mining activities approved under this administering authority does not cause the limits in Table D1 - Noise limits to be exceeded at a sensitive place or commercial place. Table D1 - Noise limits Sensitive place or commercial place Noise level dB(A) measured as: Monday to Sunday 7am to 6pm 6pm to 10pm 10pm to 7am 41 33 LAeq, adj, 15 mins 41 35 LA1, adj, 15 mins 46 46 Airblast overpressure nuisance
- D2
The environmental authority holder must ensure that blasting does not cause the limits for peak particle velocity and air blast overpressure in Table D2 - Blasting noise limits to be exceeded at a sensitive place or commercial place. Table D2 - Blasting noise limits Sensitive place or commercial place blasting noise limits Blasting noise limits 7am to 6pm (daylight hours) 6pm to 7am (non- daylight Airblast overpressure hours) Ground vibration peak 115dB (Linear) Peak for 9 out of 10 No blasting to occur particle velocity consecutive blasts initiated; and not greater than 120dB (Linear) Peak for any single blast 10mm/s for ground vibration of no more than No blasting to occur 35Hz; and 25mm/s for ground vibration of more than 35Hz Monitoring and reporting
- D3
Noise monitoring and recording must include the following descriptor characteristics and matters: a) LAN,T (where N equals the statistical levels of 1, 10 and 90 and T = 15 mins); b) background noise LA90; c) the level and frequency of occurrence of impulsive or tonal noise and any adjustment and penalties to statistical levels; d) atmospheric conditions including temperature, relative humidity and wind speed and directions; e) effects due to any extraneous factors such as traffic noise; f) location, date and time of monitoring; and g) If monitoring is conducted because of a complaint as a result of low frequency noise, Max LpLIN,T and one third octave band measurements in dB(LIN) for centre frequencies in the 10-200Hz range. Permit Environmental authority Schedule E: Groundwater Condition Condition number The environmental authority holder must not release contaminants to groundwater. E1 Monitoring and reporting
- E2
All determinations of groundwater quality, groundwater monitoring and biological monitoring must be performed by an appropriately qualified person/s. Baseline Monitoring Program
- E3
A baseline groundwater monitoring program must be developed by a suitably qualified person, implemented and be provided to the administering authority. The baseline groundwater monitoring program must result in the environmental authority holder finalising a groundwater dataset that must be provided to the administering authority at least 90 days prior to commencement of box cut excavation. The groundwater dataset must: a) contain representative groundwater quality samples from the geological units identified as potentially affected by mining activities including Quaternary alluvium, Tertiary sediments, Bandanna Formation, Colinlea Sandstone, Clematis Sandstone, Rewan Formation, Dunda Beds, and Early Permian sediments; b) include at least 12 sampling events that are no more than 2 months apart over a 2 year period, so as to determine background groundwater quality; c) include background groundwater quality in hydraulically isolated background bore(s); and d) allow for the identification of natural groundwater level trends and groundwater contaminant trigger levels. Groundwater Management and Monitoring Program (GMMP)
- E4
The Groundwater Management and Monitoring Program (GMMP) must be developed and implemented and include: a) validation of the groundwater numerical model (including review of boundary and recharge conditions) to refine and confirm accuracy of groundwater impacts predicted; b) the groundwater monitoring bore locations and purpose for each bore; c) groundwater level monitoring in all identified geological units present across and adjacent to the mine site to confirm existing groundwater flow patterns and monitor drawdown impacts; d) identification of groundwater drawdown level thresholds for monitoring the impacts to Groundwater Dependant Ecosystems (including spring complexes and Carmichael River alluvium); e) monitoring of aquifers in the area to the south of the mining lease that may affect the Mellaluka springs; f) identifying and refining potential impacts on groundwater levels in the Great Artesian Basin Clematis Sandstone and Dunda Beds geological units; g) estimating groundwater inflow to mine workings and surface water ingress to groundwater from flooding events using the groundwater model; h) monitoring in any identified source aquifers for alternative water supplies, relevant to any approval issued under the Water Act 2000 for the project; i) identify groundwater quality triggers for monitoring potential impacts to groundwater quality from mining activities; j) monitoring water level and water quality of geological units throughout all phases of mining operations including for the period post-closure and until surrender of this environmental authority; k) identifying monitoring bores that will be replaced due to mining activities; and l) identify, monitor and mitigate potential groundwater impacts, including groundwater level and quality, from mine dewatering and mine water and waste storage facilities (artificial recharge). Permit Environmental authority Monitoring Program Review
- E5
The GMMP must be reviewed and a draft GMMP Review Report finalised and provided to the administering authority for comment by 10 October 2022, and every 5 years thereafter, or after every Groundwater model review undertaken as required by condition E9.
- E6
A final GMMP Review Report must address any comments made by the administering authority and submitted to the administering authority within three months of the draft GMMP Review Report submitted under condition E5.
- E7
The draft and final GMMP Review Reports required by Condition E5 and E6, must include: a) an assessment of the groundwater management and monitoring program against the objectives in Condition E4; b) an assessment of the GMMP against the commitments in section 7 of the GMMP; c) a review of the adequacy of the monitoring locations, frequencies and groundwater quality triggers specified in Table E1--Groundwater monitoring locations and frequency, Table E3--Groundwater quality trigger levels and Table E4 - Groundwater level thresholds; and d) a review of the validity of the groundwater monitoring program against the revised model predictions required under Condition E9. Note: Tables E1, E3, and E4 are in Appendix 5 Tables
- E8
Within 3 months of the Groundwater Model Review Report being approved under condition E10 (or by a later date agreed to by the administering authority in writing), the GMMP must be updated and submitted for approval. The updated GMMP must incorporate: a) The updated drawdown predictions and recommendations from Groundwater Model Review Report submitted under condition E10; and b) Any relevant recommendations and certifications from the Final GMMP Review Report submitted under condition E6. Groundwater Model Review
- E9
The numerical groundwater model in the reports titled "Carmichael Coal Mine and Rail Project SEIS: Report for Mine Hydrogeology Report (13 November 2013)" and "Carmichael Coal Mine and Rail Project SEIS: Mine Hydrogeology Report Addendum (24 October 2013)" must be reviewed to incorporate groundwater monitoring data and measured mine dewatering volumes from the GMMP in conditions E4 and E5. The review must be completed by 10 October 2022 and at least every 5 years thereafter, or at other intervals specified by the administering authority in writing, if the observed groundwater levels and groundwater flow rates to surface water are not consistent with those predicted by the groundwater model. The review must provide a revised numerical groundwater model which is based on a transient calibration and includes additional model layers for aquifers below the D seam of the Colinlea Sandstone, and in accordance with the GMMP. The revised model must include: a) a review of the hydrogeological conceptualisation used in the previous model; b) an update of the predicted impacts; c) a revised water balance model; d) a review of assumptions used in the previous model; e) predictions of changes in groundwater levels for a range of scenarios; f) any changes made since the previous model review, including data changes; g) a justification for the refined model and the outputs of the refined model; h) an evaluation of the accuracy of the predicted changes in groundwater levels, groundwater flow rates to surface water and recommended actions to improve the accuracy of the model predictions; i) an independent peer review and certification that the environmental authority holder has undertaken the review in accordance with all commitments in the GMMP.
- E10
A Groundwater Model Review Report outlining the findings and any recommendations from the review required under condition E9 must be submitted to the administering authority for approval no later than 3 months from the completion of Groundwater model review required under condition E9 and include independent reviews and recommendations as required by condition E9. Permit Environmental authority Groundwater quality monitoring
- E11
Groundwater quality and levels must be monitored: a) at the locations and frequencies defined in Table E1 - Groundwater monitoring locations and frequency, as illustrated in Figure E1 - Groundwater Monitoring Bore Locations, and b) for quality characteristics identified in Table E2 - Groundwater monitoring parameters. Monitoring must commence within 2 months after approval by the administering authority in condition E8. Trigger level investigation
- E12
If groundwater quality characteristics from groundwater monitoring bores identified in Table E1 - Groundwater quality monitoring locations and frequency** reach or exceed any of the trigger levels stated in Table E3 - Groundwater quality trigger levels** for two consecutive monitoring events, an investigation must be commenced by the environmental authority holder within 14 days of becoming aware of the exceedance to determine if the exceedance is a result of: a) mining activities authorised under this environmental authority; or b) seasonal / natural variation; or c) neighbouring land use, or d) any other potential cause of exceedance. The environmental authority holder must: i) notify the administering authority of the analysis results via WaTERS within 10 days of receiving the analysis results; ii) complete an investigation required by this condition within 3 months of the investigation commencing, and iii) provide a report of the investigation to the administering authority via WaTERS within 28 days of completion of the investigation. Note*: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with this condition, no further reporting is required for subsequent trigger events for that quality characteristic. Note** Tables E1 and E2 are in Appendix 5.
- E13
If the investigation under condition E12 determines that the exceedance was the result of the mining activities, then a further investigation must be undertaken by the environmental authority holder to establish whether environmental harm has occurred or may occur, and the extent thereof.
- E14
If the investigation required by condition E13 determines environmental harm has or may occur, the environmental authority holder must: a) implement immediate measures to mitigate the potential for environmental harm; and b) develop long-term mitigation measures to address any existing groundwater contamination and prevent recurrence of groundwater contamination, and; c) provide a written report to the administering authority via WaTERS within 28 days after completing the investigation under condition E13. Permit Environmental authority Groundwater (water levels), monitoring, draw down and investigation
- E15
In the event that monitored groundwater levels at groundwater monitoring bores identified in Table E1 - Groundwater quality monitoring locations and frequency** exceed the corresponding groundwater level drawdown threshold stated in Table E4 - Groundwater level drawdown thresholds**, the environmental authority holder must: a) notify the administering authority of the analysis results via WaTERS within 10 days of receiving the analysis results; and b) commence an investigation within 14 days of becoming aware of the exceedance to determine if the drawdown is the result of; i) mining activities authorised under this environmental authority; ii) pumping from licensed bores; iii) seasonal / natural variation; iv) neighbouring land use resulting in groundwater impacts, or v) any other potential cause of exceedance. c) complete an investigation required by this condition within 3 months of the investigation commencing; and d) submit a report of the findings of the investigation to the administering authority via WaTERS within 28 days of completing the investigation. Note** Tables E1 and E4 are in Appendix 5.
- E16
If the investigation under condition E15(b) concludes exceedance/s of groundwater level thresholds are result of mining activities, the environmental authority holder must: a) determine whether unlawful environmental harm has occurred or likely to occur; b) determine the actions to reduce the potential for unlawful environmental harm; c) undertake an assessment of the associated impact to Matters of State Environmental Significance in accordance with condition I3; d) determine the mitigation measures required to address the affected groundwater resource; and e) prepare a final report of the findings of the investigation which must be submitted to the administering authority via WaTERS within 3 months after submission of the preliminary report in accordance with condition E15(c).
- E17
Any and all groundwater monitoring data collected under this schedule must be submitted annually by 1 July to the administering authority via WaTERS.
- E18
An Annual Groundwater Monitoring Report must be submitted by 1 July each year to the administering authority. The Annual Groundwater Monitoring Report must include: a) summary of groundwater monitoring activity undertaken during the year; b) an assessment of water quality data and water level data for long-term trends with time series graphs of all data for all groundwater bores; c) a summary of investigation of exceedances of groundwater quality triggers and groundwater level thresholds carried out under this schedule; d) month wise dewatering volumes during the year; e) an assessment of any differences between the impacted groundwater level predicted and the actual impacts for the corresponding period; and f) a summary of all recommended changes to the GMMP.
- E19
Within 3 months of submitting the Annual Groundwater Monitoring Report required by condition E18, the environmental authority holder must amend the GMMP to include any recommendations, as well as any comments made by the administering authority, and resubmit the GMMP to the administering authority for approval. Bore construction and maintenance and decommissioning
- E20
The construction, maintenance, and decommissioning of groundwater bores (including groundwater monitoring bores) must be undertaken in a manner that prevents and minimises impacts to the environment and ensures the integrity of the bores to obtain accurate monitoring data. Permit Environmental authority Schedule F: Water Condition number Condition Release of contaminants
- F1
Contaminants must not be released to any surface waters except as permitted under the conditions of Schedule F in this environmental authority. Discharge of Mine Affected Water
- F2
The release of mine affected water to waters must only occur from the release points specified in Table F1 - Mine affected water release points, sources and receiving waters, as depicted in Figure F1: Water release and monitoring locations attached to this environmental authority. Table F1 - Mine affected water release points, sources and receiving waters Release Point Easting Northing Contaminant Monitoring Receiving Waters (RP) (GDA94-- (GDA94-- Source and Point Description Zone 55K) Zone 55K) Location RP1--Central 443373.41 7558805.00 MAW North Mine Affected Outlet works to Carmichael River 7553979.62 Water Dam Carmichael Central - North River RP2--Central 435539.56 Mine Affected Outlet works Carmichael MAW South Water Dam to Carmichael River Central-- River South
- F3
The release of mine affected water to internal water management infrastructure installed and operated in accordance with a water management plan that complies with condition F25 is permitted.
- F4
The release of mine affected water to waters in accordance with condition F2 must not exceed the release limits stated in Table F2 - Mine affected water release limits when measured at the monitoring points specified in Table F1 - Mine affected water release points, sources and receiving waters for each quality characteristic. Table F2 - Mine affected water release limits Quality Release limits Monitoring frequency characteristic Continuous Electrical conductivity (-S/cm) Release limits specified in Table F4 for variable flow Continuous pH (pH Unit) Continuous Turbidity (NTU) criteria. 6.5 (minimum) 9.0 (maximum) 500
- F5
The release of mine affected water to waters from the release points must be monitored at the locations specified in Table F1 - Mine affected water release points, sources and receiving waters for each quality characteristic and at the frequency specified in Table F2 - Mine affected water release limits and Table F3 - Release trigger levels. Permit Environmental authority Table F3 - Release trigger levels Quality Characteristic Trigger Levels (-g/L) Monitoring frequency Aluminium1 120 Commencement of release Arsenic1 13 and thereafter weekly during Cadmium1 0.2 release (first sample to be Chromium1 2 taken within 2 hours of Copper1 4 commencement of release) Iron1 120 Lead1 4 Mercury1 0.2 Nickel1 11 Zinc1 30 Boron1 370 Cobalt1 1.4 Manganese1 1900 Molybdenum1 34 Selenium1 10 Silver1 1 Uranium1 1 Vanadium1 10 Ammonia as N 900 Nitrate as NO3 1100 Total Nitrogen 2020 Total Phosphorus 360 Petroleum hydrocarbons (C6-C9) 20 Petroleum hydrocarbons (C10-C36) 50 Fluoride 1000 Sodium1 180,000 Suspended Solids 150 Sulphate (SO42-) 125,000 1 All metals and metalloids must be measured as total (unfiltered) and dissolved (filtered). Trigger levels for metal/ metalloids apply if dissolved results exceed trigger.
- F6
If quality characteristics of the release exceed any of the trigger levels specified in Table F3 - Release trigger levels during a release event, the environmental authority holder must compare the downstream results in the receiving waters, as monitored at BEL01 as specified in Table F6 - Receiving water upstream, to the trigger values specified in Table F3 - Release trigger levels, and: a) where the trigger values are not exceeded then no action is to be taken; or b) where the downstream results at BEL01 exceed the trigger values specified in Table F3 - Release trigger levels for any quality characteristic, compare the results of the downstream site to the data from all upstream monitoring sites as specified in Table F6 - Receiving water upstream and downstream monitoring points and: i) if the result is less than the upstream monitoring sites data, then no action is to be taken; or ii) if the result is greater than the upstream monitoring sites data, complete an investigation into the potential for environmental harm and provide a written report to the administering authority via WaTERS within 90 days of receiving the result, 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 F6(b)(ii) of this condition, no further reporting is required for subsequent trigger events for that quality characteristic.
- F7
If an exceedance in accordance with condition F6(b)(ii) is identified, the environmental authority holder must notify the administering authority via WaTERS within 24 hours of receiving the result. Permit Environmental authority Mine Affected Water Release Events
- F8
The environmental authority holder must ensure a stream flow gauging station/s is installed, operated, and maintained to determine and record stream flows at the locations and flow recording frequency specified in Table F4 - Mine affected water release during flow events.
- F9
The release of mine affected water to waters in accordance with condition F2 must only take place during periods of natural flow in accordance with the receiving water flow criteria for discharge specified in Table F4 - Mine affected water release during flow events for the release point(s) specified in Table
- F1
- Mine affected water release points, sources and receiving waters.
- F10
The release of mine affected water to waters in accordance with condition F2 must not exceed the Maximum Release Rate (for all combined release point flows) for each receiving water flow criterion for discharge specified in Table F4 - Mine affected water release during flow events when measured at the monitoring points specified in Table F1 - Mine affected water release points, sources and receiving waters. Table F4 - Mine affected water release during flow events Receiving Release Point GS Easting GS Northing Receiving Receiving Maximum Electrical waters/ (RP) and (GDA94-- (GDA94-- Water Flow Water release Conductivity stream Zone 55K) Zone 55K) Recording Flow rate (for Release Limits Gauging station Frequency Criteria all Carmichael (GS) Name 433237.06 7554988.83 for Electrical River Continuous combined conductivity:
- F11
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 the receiving waters. Permit Environmental authority Notification of Release Event
- F12
The environmental authority holder must notify the administering authority via WaTERS as soon as practicable and no later than 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) details regarding compliance of the release with conditions of Schedule F: Water of this environmental authority (that is, contaminant limits, natural flow, discharge volume); c) release point/s; d) release rate; e) release salinity; and f) receiving water/s including the natural flow rate.
- F13
The environmental authority holder must notify the administering authority via WaTERS as soon as practicable within 24 hours after cessation of a release notified under condition F12. The cessation notification must include the following information: a) release cessation date and time; b) details regarding the compliance of the release with the conditions of this environmental authority (that is, contaminant limits, natural flow, discharge volume); c) release point/s; d) release rate; e) release salinity; f) receiving water/s including natural flow rate; g) the continuous monitoring data for flow rate, electrical conductivity (EC) and turbidity from downstream monitoring locations; and h) all in situ and any water quality monitoring results (including all laboratory analyses). Note: Successive or intermittent releases occurring within 24 hours of the cessation of any individual release can be considered part of a single release event and do not require individual notification for the purpose of compliance with Conditions F12 and F13, provided the relevant details of the release are included within the notification provided in accordance with Conditions F12 and F13.
- F14
The environmental authority holder must provide a report to the administering authority via WaTERS within 28 days after cessation of a release event notified under condition F12. The report must include: a) release commencement and cessation dates and times; b) natural flow rate in receiving water; c) the total, and daily (24 hour) volumes 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 continuous and in situ water quality monitoring results (including laboratory analyses); and f) any other matters pertinent to the water release event. Notification of Release Event Exceedance
- F15
If the release limits defined in Table F2 - Mine affected water release limits are exceeded, the environmental authority holder must notify the administering authority via WaTERS within 24 hours of receiving the results.
- F16
The environmental authority holder must, within 28 days of a release that is not compliant with the conditions of this environmental authority, provide a report to the administering authority via WaTERS detailing: a) the reason for the release; b) the location of the release; c) the total volume of the release and which (if any) part of this volume was non-compliant; d) the total duration of the release and which (if any) part of this period was non-compliant; e) all water quality monitoring results (including all laboratory analyses); f) extent of any environmental harm as a result of the non-compliance; g) all calculations; and h) any other matters pertinent to the water release event. Permit Environmental authority Receiving Environment Monitoring and Contaminant Trigger Levels
- F17
The quality of the receiving waters must be monitored at the locations specified in Table F6 - Receiving water upstream and downstream monitoring points for each quality characteristic and at the monitoring frequency stated in Table F5 - Receiving waters trigger levels. Table F5--Receiving waters trigger levels Quality Characteristic Trigger Levels (-g/L) Monitoring frequency Electrical Conductivity (-S/cm) CAR01 - 1160 Continuous during release
- F18
If quality characteristics of the receiving water at the downstream monitoring points exceed any of the trigger levels specified in Table F5 - Receiving waters 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 result exceeds the upstream results, complete an investigation into the potential for environmental harm and provide a written report to the administering authority via WaTERS within 90 days, outlining: i) details of the investigations carried out; and ii) actions taken to prevent environmental harm.
- F19
All continuous environmental monitoring systems required by this environmental authority must have an instrument availability for at least eighty percent (80%) of a calendar year except for the continuous monitoring of release points specified in Table F1 - Mine affected water release points, sources and receiving waters which must have an instrument availability of at least ninety percent (90%) of a calendar year. Environment Monitoring Program (REMP)
- F20
The environmental authority holder must develop and implement a Receiving Environment Monitoring Program (REMP) to: a) monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised mining activity. b) 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. c) for the purposes of the REMP, the receiving environment is the waters of the Carmichael River and connected or surrounding waterways within 12km downstream of the release (this includes the Belyando River, immediately downstream of the confluence with the Carmichael River and monitoring points Bel 02 and Bel 01 listed in Table F6 - Receiving water upstream and downstream monitoring points). d) 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 Receiving release of mine affected water.
- F21
A REMP Design Document that addresses the requirements of the REMP must be prepared and made available to the administrating authority upon request. Permit Environmental authority
- F22
A report outlining the findings of the REMP, including all monitoring results and interpretations must be prepared annually and provided to the administering authority by 1 July each year. The annual REMP report must include an assessment of background 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. Water reuse
- F23
Mine affected water may be piped or trucked or transferred by some other means that does not contravene the conditions of this environmental authority and deposited into artificial water storage structures, such as farm dams or tanks, or used directly at properties owned by the environmental authority holder or a third party (with the written consent of the third party). Annual Water Monitoring Reporting
- F24
The following information must be recorded in relation to all REMP and water release monitoring required under Schedule F of this environmental authority and submitted to the administering authority via WaTERS by 1 July each year: a) the date on which the sample was taken; b) the time at which the sample was taken; c) the location (including coordinates); 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; g) and water quality monitoring data. Water Management Plan
- F25
A Water Management Plan must be developed.
- F26
The Water Management Plan required by condition F25 must: a) provide for effective management of actual and potential environmental impacts resulting from water management associated with the mining activity and release of Mine Affected Water carried out under this environmental authority; and b) 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) procedures for release of mine affected water vii) contingency procedures for emergencies; and viii) a program for monitoring and review of the effectiveness of the Water Management Plan.
- F27
The Water Management Plan required by condition F25 must be implemented Stormwater and Water Sediment Controls
- F28
An Erosion and Sediment Control Plan must be developed by an appropriately qualified person and implemented for all stages of the authorised activities on the site to minimise erosion and the release of sediment to receiving waters and contamination of stormwater.
- F29
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 F28; and b) water management infrastructure that is installed and operated, in accordance with a Water Management Plan that complies with condition F25, for the purpose of ensuring water does not become mine affected water. Permit Environmental authority Schedule G: Sewage Treatment Condition Condition number Treated sewage effluent is permitted to be released to land or to mine affected water storages in
- G1
compliance with the release limits stated in Table G1 - Contaminant release limits to land or mine affected water storages. Table G1 - Contaminant release limits to land or mine affected water storages Contaminant Unit Release Limit type Monitoring limit Frequency 5-day Biochemical mg/L 20 Maximum Monthly oxygen demand (BOD)1 Total suspended solids mg/L 30 Maximum Monthly Nitrogen mg/L Monthly 30 Maximum Phosphorus mg/L 15 Maximum Monthly E-coli Organisms/100ml 10 Maximum Monthly
- G2
All treated sewage effluent released from the treatment plant must be monitored at the frequency and for the parameters specified in Table G1 - Contaminant release limits to land or mine affected water storages.
- G3
The daily volume of treated sewage effluent released to land or mine affected water storages must be measured and records kept of the volumes released. Permit Environmental authority Schedule H: Land and Rehabilitation Condition Condition number Rehabilitation
- H1
Land disturbed by mining activities authorised under this Environmental Authority must be rehabilitated in accordance with Table H1 - Rehabilitation acceptance criteria (in Appendix 2) and Figure H1: Cross Sections of Residual Voids, Figure H2: Final Landform (Northern Section), Figure H3: Final Landform (Central Section) and Figure H4: Final Landform (Southern Section) in Appendix 4.
- H2
The rehabilitation completion criteria specified in Table H1 - Rehabilitation Acceptance Criteria (Appendix 2) must be reviewed by an appropriately qualified person by the 2 February 2021 and from then on, every 5 years with any proposed amendments or changes submitted to the administering authority for approval. Rehabilitation Monitoring Program
- H3
A Rehabilitation Monitoring Program must be developed and certified by an appropriately qualified person and implemented. The Rehabilitation Monitoring Program must contain a schedule for gathering baseline data noting agreed reference sites and conducting rehabilitation trials to support the rehabilitation outcomes detailed in Table H1 - Rehabilitation Acceptance Criteria. Baseline monitoring and rehabilitation trials under this program must be undertaken at a suitable frequency to ensure that the environmental authority holder has a representative dataset to enable: a) progressive certification of rehabilitation under Chapter 5A of the Environmental Protection Act 1994. b) surrender of the Environmental Authority under Chapter 5 of the Environmental Protection Act 1994.
- H4
Rehabilitation must be undertaken progressively in accordance with the Rehabilitation Management Plan and Progressive Rehabilitation Closure Plan (when approved).
- H5
Self-sustaining vegetation and native ecosystem, as per Table H1 - Rehabilitation Acceptance Criteria (Appendix 2), must be consistent with the reference sites identified in Table H2 - Reference Sites and Figure H6: Reference Sites. Table H2: Reference Sites Reference Final Land Use Easting Northing Regional Ecosystem (GDA94--Zone (GDA94--Zone Reference Site ID Objective 55) 55) Not Applicable 1 Pasture 435015.03 7555606.11 Not Applicable Not Applicable 2 Pasture 443025.57 7556465.56 10.3.6 10.5.5a 3 Pasture 440270.90 7555837.51 10.5.5a 10.5.5a 4 Woodland and Pasture 430726 7563890 10.3.6 10.5.5a 5 Woodland 430561 7558129 Not Applicable 10.3.6a 6 Woodland 423818 7582630 7 Woodland 421364 7577639 8 Woodland and Pasture 440215 7549288 9 Woodland 443699 7541731 10 Pasture 445500.99 7544738.92 11 Woodland and Pasture 434960 7554530 Permit Environmental authority Residual Void Outcome
- H6
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 condition H7 within this environmental authority.
- H7
Residual voids, as detailed and presented in Figure H1: Cross Sections of Residual Voids Open Cut Pits B, C, D, E, F and G are authorised in accordance with Table H3 - Residual Voids. Open Cut Pit Table H3 - Residual Voids Residual Void Treatment B Residual void authorised to the depth of the top of the D1 Seam at the highwall face C Residual void authorised to the depth of the top of the AB1 Seam at the highwall face D Residual void authorised to the depth of the top of the D1 Seam at the highwall face E Residual void authorised to the depth of the top of the AB1 Seam at the highwall face F Residual void authorised to the depth of the top of the AB1 Seam at the highwall face G Residual void authorised to the depth of the top of the D1 Seam at the highwall face Topsoil Management Plan
- H8
A Topsoil Management Plan must be developed and implemented. Mining Waste and Rejects Management
- H9
A Mine Waste and Rejects Management Plan must be developed, implemented and include: a) characterisation of the waste rock, spoil and rejects to predict the quality of runoff and seepage generated, including salinity, acidity, alkalinity and dissolved metals, metalloids and non-metallic inorganic substances; b) a program of progressive sampling and characterisation to identify dispersive and nondispersive spoil and the salinity, acid and alkali producing potential and metal concentrations of waste rock, spoil and rejects; c) a materials balance d) management of potentially acid forming and acid forming waste rock, spoil and rejects will be selectively placed and/or encapsulated to minimise the potential generation of acid mine drainage; e) a sampling program to verify encapsulation and/or placement of potentially acid-forming and acid-forming waste rock, spoil and rejects; f) a schedule of periodic review of the plan's effectiveness in addressing the requirements of this condition; g) the indicators or other criteria on which the performance of the plan will be assessed; h) a rehabilitation strategy; i) rehabilitation monitoring, and/or trials to verify the requirements and methods for decommissioning and final rehabilitation of the placed materials.
- H10
Reject disposal areas must be designed and constructed to ensure that any runoff or seepage from the reject disposal area is contained within the mine water management system. Contaminated Land
- H11
Before applying for surrender of a mining lease, the environmental authority holder must (if applicable) provide to the administering authority a site investigation report under the EP Act, in relation to any part of the mining lease which has been used for notifiable activities or which the environmental authority holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of that report to ensure that the land is suitable for its final land use. Permit Environmental authority
- H12
Before applying for progressive rehabilitation certification for an area, the environmental authority holder must (if applicable) provide to the administering authority a site investigation report under the EP Act, in relation to any part of the area the subject of the application which has been used for notifiable activities or which the environmental authority holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of that report to ensure that the land is suitable for its final land use under condition H1. Chemicals and Flammable and Combustible Liquids
- H13
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 AS 1940--Storage and Handling of Flammable and Combustible Liquids.
- H14
The storing of chemicals and pollutants on site that have the potential to cause environmental harm must be carried out in an effective containment system, impervious to the materials stored and managed to prevent release of harmful liquids to waters or land.
- H15
The environmental authority holder must minimise the potential for contamination of land and waters by diverting stormwater around contaminated areas and facilities used for the storage of chemicals and flammable or combustible liquids. Schedule I: Offsets and Biodiversity Condition Condition number The environmental authority holder must provide an offset for impacts on applicable Matters of State
- I1
Environmental Significance, in accordance with the Carmichael Coal Project Biodiversity Offset Strategy, as approved. The biodiversity offset must be provided: a) prior to impacting on Matters of State Environmental Significance; or b) where a land-based offset is to be provided, within 36 months of the later of either of the following: i) the date of issue of this environmental authority; or ii) the relevant stage identified in the Biodiversity Offset Strategy; or c) where an offset payment is to be provided, within 4 months of the later of either of the following: i) the date of issue of this environmental authority; or ii) the relevant stage identified in the Biodiversity Offset Strategy. Review of Biodiversity Offset Delivery
- I2
The Biodiversity Offset Strategy must be reviewed by the 2 February 2021, and thereafter every 5 years with a report prepared by an appropriately qualified person. The report must: a) assess the area of Matters of State Environmental Significance proposed to be impacted by the mining activities in the Biodiversity Offset Strategy; and b) identify the actual on ground areas of Matters of State Environmental Significance impacted by the mining activities.
- I3
If an investigation conducted under conditions E15 or E16 of this environmental authority indicates that there is a risk of impacting a Matter of State Environmental Significance, or condition J11 is triggered, the Biodiversity Offset Strategy must be reviewed and a report must be prepared within 3 months by an appropriately qualified person. The report must: a) assess the area of Matter of State Environmental Significance proposed to be impacted by the mining activities in the Biodiversity Offset Strategy; and b) identify the actual on ground areas of Matter of State Environmental Significance impacted by the mining activities. Permit Environmental authority
- I4
If the review under condition I2 or I3 finds that the actual areas of disturbance to Matters of State Environmental Significance are greater than the areas of disturbance as detailed in the Biodiversity Offset Strategy, or that additional Matters of State Environmental Significance will be impacted, the environmental authority holder must amend the Biodiversity Offset Strategy as per condition I5 and deliver the amended offset requirement within 12 months.
- I5
In response to condition I4 the environmental authority holder may apply to the administering authority to amend the Biodiversity Offset Strategy within either 30 days, or a lesser period agreed to by the administering authority, prior to impacting on the applicable Matter of State Environmental Significance. Black-throated finch (BTF) Management Plan at Carmichael project (BTFMP)
- I6
The environmental authority holder must submit a BTFMP, prepared and certified by a suitably qualified and experienced person to the administering authority for approval prior to commencement of Project Stage 2. The environmental authority holder must publish the BTFMP on its website within 10 business days of receiving the administering authority's approval in writing. The approved BTFMP must be implemented. The holder must align the BTFMP with any Bioregional BTF Management Plan and relevant documentation requirements under the Environmental Protection and Biodiversity Conservation Act 1999 including the BTF Recovery Plan, conservation advice and the threat abatement plan. The submitted BTFMP must include: a) a baseline research program on the specific nesting and feeding requirements of the species that will be undertaken prior to and during Project Stage 1; b) a baseline research program to establish whether the BTF at the project site are sedentary, locally migratory or regionally migratory; c) a description of how the results of baseline research program are to be used to determine any changes of classification of and/or impact on BTF habitat; d) details of proposed impacts to BTF habitat from each Project Stage including impacts from clearing, subsidence, ecological function changes, hydrological changes and weed and pest infestation changes; e) mitigation measures to be undertaken to avoid, mitigate and manage impact resulting from each stage of the project, including rehabilitation of habitat; f) monitoring of watering points that must be conducted for a minimum 3 hour period commencing from 9am, to accurately capture BTF utilisation of watering points; g) detailed botanical assessment that must occur at all BTF sighting locations in the project area to record habitat values at those locations; h) detailed surveys that must occur across the mining lease area and approved offset areas and must include information on BTF movements. The survey method and effort must be sufficient to accurately describe the BTF home range and detail BTF resource usage patterns between seasons and years (for up to 10 years) and allow robust management actions to be developed for the maintenance of a viable local BTF population; i) survey work that records all birds present when BTF are encountered; j) specific surveys that must be undertaken during the BTF breeding season and include nest
- I7
The BTFMP required under condition I6 must be reviewed by a suitably qualified and experienced person annually. The review must: a) assess the plan against the requirements under condition I6; b) include recommended actions to ensure actual and potential environmental impacts are effectively managed for the coming year; c) identify any amendments made to the BTFMP following the review; d) all revisions of the survey and monitoring program must be carried out in consultation with the BTF recovery team; e) any revisions must be independently peer reviewed, and f) a report of the review that addressed the outcomes of the review must be provided to the administering authority no later than 1 September each year.
- I8
The baseline research program must fund a research project to determine the relationship between water sources, woody habitat and the BTF food sources within the mining lease area and approved offset areas to determine the inter-relationships among these factors.
- I9
The baseline research program under condition I6 must: a) establish whether the Ten Mile Bore and surrounds are high value habitat for the species; and b) establish management actions to maintain the current BTF population of Ten Mile Bore and surrounds.
- I10
The environmental authority holder must maintain water troughs for BTF within undisturbed areas and surface areas of underground mining footprint, and where necessary repair troughs, pipes and tanks to a standard that maintains a constant source of water. Groundwater Dependent Ecosystems Management Plan
- I11
The environmental authority holder must develop and implement a Groundwater Dependent Ecosystems Management Plan (GDEMP) to detail the management of threats to defined environmental values and to report results and corrective actions for each GDE over the full period of mining activities and for a period of five years post mining rehabilitation.
- I12
The GDEMP must be approved by the administering authority in writing and the GDEMP published on the environmental authority holder's website before the commencement of Project Stage 2.
- I13
For the purposes of conditions I11 and I12, the GDEs include the affected Carmichael River riparian zone (ecosystems associated with the Carmichael River between Doongmabulla Springs and the Belyando River, including populations of Waxy Cabbage Palm), the Lignum, Stories and Mellaluka springs and the Doongmabulla, Spring complex.
- I14
A report of the findings of the GDEMP, including all monitoring results and interpretations, must be prepared annually and provided to the administering authority no later than 1 August each year.
- I15
The report submitted under condition I14 must include: a) an assessment of groundwater levels against pre-mining groundwater levels, b) a comparison of surface water quality monitoring results to determine any interaction or impact from groundwater on surface water quality results; c) the condition of each GDE compared with previous monitoring results; d) the suitability of current groundwater level thresholds Table E4 - Groundwater level drawdown thresholds in Schedule E; e) detail on the effectiveness of avoidance, mitigation and management actions in curtailing adverse impacts on GDEs; f) a description of any adaptive management initiatives implemented; g) any offsets required for significant residual impacts. Permit Environmental authority Schedule J: Subsidence Condition Condition number Subsidence is authorised within the subsidence impact area identified in Figure A1. J1
- J2
A Subsidence Management Plan must be developed and implemented by the environmental authority holder prior to the commencement of activities that result in subsidence.
- J3
The Subsidence Management Plan must: a) provide for the proper and effective management of the actual and potential environmental impacts resulting from the mining activity authorised by this environmental authority and to ensure compliance with the conditions of this environmental authority; b) include baseline data; prior to underground mining; c) describe the proposed impacts of subsidence on any land, BTF habitat, watercourse and floodplain including but not limited to: i) physical condition of surface drainage: 1) erosion; 2) areas susceptible to higher levels of erosion such as watercourse confluences; 3) incision processes; 4) stream widening; 5) tension cracking; 6) lowering of bed and banks; 7) creation of instream waterholes; 8) changes to local drainage patterns; and 9) BTF habitat. 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. iv) land condition: current land condition to be impacted by subsidence; v) infrastructure: detail of existing infrastructure (pipelines, railway, powerlines and haul roads) should be identified where there is a potential impact from effects of land subsidence; d) propose options for mitigating any impacts associated with subsidence, how these mitigation methods will be implemented, and the extent to which these measures will impact a Matter of State Environmental Significance(s);
- J4
The Subsidence Management Plan must be reviewed each calendar year and a report prepared on 1 July each year. The report must: a) assess the plan against the requirements under condition J3 and the certified reports required under condition J10; 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 Subsidence Management Plan following the review.
- J5
The environmental authority holder must attach a written response and recommended actions to the review report required by condition J4. The response must detail the actions taken and/or proposed to be taken in order to ensure continuing compliance with this environmental authority. Permit Environmental authority
- J6
The review report required by condition J4 and the written response to the review report required by condition J5 must be submitted to the administering authority upon request. Annual Inspection of Subsidence
- J7
The environmental authority holder must arrange for each subsided longwall panel to be inspected annually by an appropriately qualified person, in accordance with conditions J8 to J10 inclusive. If the appropriately qualified person deems and records under condition J9 that a subsided longwall no longer has an associated environmental risk, the longwall panel does not need to be reinspected in the future annual inspections under conditions J7 to J9 inclusive.
- J8
The annual inspection must be conducted between 1 April and 1 November each year.
- J9
At each annual inspection, the condition of each subsided longwall panel must be assessed by an appropriately qualified person. The inspection must include assessments of the structural, geotechnical and hydraulic adequacy of the subsided longwall panel and the adequacy of the works with respect to the Subsidence Management Plan.
- J10
For each inspection required under condition J9, copies of a report, including any recommendations to ensure the integrity of each subsided longwall panel, must be provided to the administering authority upon request.
- J11
If the review under conditions J4 or J7 indicates that the impact to Matters of State Environmental Significance caused by mining activities authorised under this environmental authority differs from the area of disturbance detailed in the Biodiversity Offset Strategy, the environmental authority holder must undertake a review in accordance with conditions I4 and I5. Schedule K: Structures Condition Condition number Consequence Category
- K1
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; or b) prior to any change in its purpose or the nature of its stored contents.
- K2
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.
- K3
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 Design and Construction of a Regulated Structure
- K4
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
- K5
Construction of a regulated structure is prohibited unless: a) the environmental authority holder has submitted a consequence category assessment report and certification to the administering authority; and b) certification for the design, design plan and the associated operating procedures has been certified by a suitably qualified and experienced person in compliance with the relevant condition of this authority. Permit Environmental authority
- K6
Certification must be provided by the suitably qualified and experienced person who oversees the preparation of the design plan in the form set out in the Manual for Assessing Consequence Categories Regulated Structures.
- K7
Regulated Structures must: a) be designed and constructed in compliance 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 a 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 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.
- K8
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.
- K9
All affected persons must be provided with a copy of the emergency action plan in place for each regulated structure a) for existing structures that are regulated structures, within 10 business days of this condition taking effect; b) prior to the operation of the new regulated structure; and c) if the emergency action plan is amended, within 5 business days of it being amended. Operation of a regulated structure
- K10
Operation of a regulated structure, except for an existing structure, is prohibited unless the environmental authority holder has submitted to the administering authority in respect of regulated structure, all of the following: a) one electronic copy of the design plan and certification of the `design plan' in accordance with condition K6; b) a set of `as constructed' drawings and specifications; c) certification of those `as constructed drawings and specifications' in accordance with condition K8; and 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 environmental authority relating to the construction of the regulated structure have been met; f) the environmental authority holder has entered the details required under this environmental authority into a Register of Regulated Structures; and g) there is a current operational plan for the regulated structure.
- K11
Each regulated structure must be maintained and operated, for the duration of its operational life until decommissioned and rehabilitated, in a manner that is consistent with the current operational plan and, if applicable, the current design plan and associated certified `as constructed' drawings. Mandatory Reporting Level
- K12
Conditions K12 to K16 inclusive only apply to Regulated Dams which have not been certified as low consequence category for `failure to contain--overtopping'. Permit Environmental authority
- K13
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.
- K14
The environmental authority holder must, as soon as practical but within 48 hours of becoming aware, notify the administering authority when the level of the contents of a regulated dam reaches the MRL.
- K15
The environmental authority holder must, immediately on becoming aware that the MRL has been reached, act to prevent the occurrence of any unauthorised discharge from the regulated dam.
- K16
The environmental authority holder must record any changes to the MRL in the Register of Regulated Structures. Design Storage Allowance
- K17
The environmental authority holder must assess the performance of each regulated dam or linked containment system over the preceding November to May period based on actual observations of the available storage in each regulated dam or linked containment system taken prior to 1 July of each year.
- K18
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 system).
- K19
The environmental authority holder must, as soon as possible but within 48 hours of becoming aware that a regulated dam (or network of linked containment system) will not have the available storage to meet the DSA volume on 1 November of any year, notify the administering authority.
- K20
The environmental authority holder must, immediately on becoming aware that a regulated dam (or network of linked containment systems) will not have the available storage to meet the DSA volume on 1 November of any year, act to prevent the occurrence of any unauthorised discharge from the regulated dam or linked containment system. Annual Inspection
- K21
Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.
- K22
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 a recommendations section with any recommended actions to ensure the integrity of the regulated structure, or a positive statement that no recommendations are required.
- K23
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
- K24
Within 20 business days of receipt of the annual inspection report, the environmental authority holder must provide to the administering authority: a) the recommendations section of the annual inspection report; and b) if applicable, any actions being taken in response to those recommendations; and c) if, following receipt of the recommendations and (if applicable) recommended actions, the administering authority requests a full copy of the annual inspection report from the environmental authority holder, provide this to the administering authority within 10 business days of receipt of the request. Transfer Arrangements
- K25
The environmental authority holder must provide a copy of any reports, documentation and certifications prepared under this environmental authority, including but not limited to any Register of Regulated Structures, consequence assessment, design plan and other supporting documentation, to a new environmental authority holder on transfer of this environmental authority. Permit Environmental authority Decommissioning and Rehabilitation
- K26
Dams must not be abandoned but must be either: a) decommissioned and rehabilitated to achieve compliance with condition K27; 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 environmental authority holder and the landholder agree in writing that the dam will be used by the landholder following the cessation of the environmentally relevant activity(ies).
- K27
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 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 Queensland Acid Sulfate Soil Technical Manual and Soil Management Guideline V 4.0 (2014); 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 resource activity(ies); 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 3 months of resource activities being completed. Register of Regulated Structures
- K28
A Register of Regulated Structures must be established and maintained by the environmental authority holder for each regulated structure.
- K29
The environmental authority 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.
- K30
The environmental authority holder must make a final entry of the required information in the Register of Regulated Structures once compliance with condition K10 has been achieved.
- K31
The environmental authority holder must ensure that the information contained in the Register of Regulated Structures is current and complete on any given day.
- K32
All entries in the Register of Regulated Structures must be endorsed by the chief executive officer for the environmental authority holder, or their delegate, as being accurate and correct.
- K33
The environmental authority 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. END OF CONDITIONS Permit Environmental authority 1 APPENDIX 1: DEFINITIONS Words and phrases used throughout this environmental authority are defined below. Where a definition for a term used in this environmental authority is not provided within this environmental authority and is provided in the EP Act or subordinate legislation, the definition in the EP Act or subordinate legislation must be used. `activity(ies)' means mining activities and / or resource activities as noted within this Appendix. `acid rock drainage' means any contaminated discharge emanating from a mining activity formed through a series of chemical and biological reactions when geological strata are disturbed and exposed to oxygen and moisture. `airblast overpressure' means energy transmitted from the blast site within the atmosphere in the form of pressure waves. The maximum excess pressure in this wave, above ambient pressure is the peak airblast overpressure measured in decibels linear (dBL). `annual exceedance probability' or `AEP' the probability that at least one event in excess of a particular magnitude will occur in any given year. `annual inspection report' means an assessment prepared by a suitably qualified and experienced person containing details of the assessment against the most recent consequence assessment report and design plan (or system design plan): a) against recommendations contained in previous annual inspections reports; b) against recognised dam safety deficiency indicators; c) for changes in circumstances potentially leading to a change in consequence category; d) for conformance with the conditions of this authority; e) for conformance with the `as constructed' drawings; f) for the adequacy of the available storage in each regulated dam, based on an actual observation or observations taken after 31 May each year but prior to 1 November of that year, of accumulated sediment, state of the containment barrier and the level of liquids in the dam (or network of linked containment systems); and g) for evidence of conformance with the current operational plan. `appropriately qualified person(s)' means a person or persons who has professional qualifications, training, skills and experience relevant to nominated subject matter and can give authoritative assessment, advice and analysis in relation to the subject matter using the relevant protocols, standards, methods or literature. `assessed' or `assessment' by a `suitably qualified and experienced person' in relation to a consequence assessment of a dam, means that a statutory declaration has been made by that person and, when taken
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quality 423766 7556814 236.35 237.42 Bore-specific triggers Nested bore. Water level and 423822 7557008 quality Water level and quality HD03A Water level and quality 427562 7556132 229.41 230.16 Bore-specific triggers Dunda beds C022P1 Water level and quality 426813 7565962 273.76 274.15 Bore-specific triggers C027P2 Water level and quality 433648 7554819 227.58 228.38 Bore-specific triggers C14023SP Water level and quality 429802 7550969 277.675 278.675 Bore-specific triggers 435915 7547522 279.59 280.67 Bore-specific triggers C180117SP Water level and quality 426268 7561274 310.28 310.94 At least 2- to 3- Bore-specific triggers 427337 7556725 238.068 238.868 monthly 423768 7556827 239.385 240.365 C19007SP Nested bore. Water level and Bore-specific triggers C19011SP quality C19015SP Nested bore. Water level and Bore-specific triggers quality Nested bore. Water level and quality Rewan Formation C008P1 Water level and quality 433713 7558834 238.14 238.64 Bore-specific triggers C035P1 Water level and quality 441404 7546824 236.31 236.79 Bore-specific triggers C555P1 Water level and quality 432461 7557893 241.15 241.86 Bore-specific triggers Permit Environmental authority Location Surface Reference RL RL (m Monitoring Monitoring Easting Northing AHD) Monitoring Comments Regarding Triggers Point1 Water level and quality (GDA94 - (GDA94 - (mAHD) Frequency Zone 55K) Zone 55K) 261.42 Bore-specific triggers C556P1 260.63 294.63 At least 2- to Bore-specific triggers 436524 7549882 294.11 229.6 3- monthly Bore-specific triggers 228.81 311.07 No baseline data; Triggers to be developed C9553P1R Water level and quality 421010 7573975 310.18 310.47 No quality triggers assigned 310.15 239.42 No baseline data; Triggers to be developed C9838SPR Water level and quality 439558 7552812 238.4 239.935 No baseline data; Triggers to be developed 426268 7561277 239.62 261.62 No quality triggers assigned C19008SP Nested bore. Water level and 426286 7561268 260.68 238.29 No baseline data; Triggers to be developed quality 427331.21 7556730 238.1 240.23 Bore-specific triggers 423736 7556825 239.4 No quality triggers assigned C19009SP Nested bore. Water level only 439400 7540894 239.77 427345.98 7556721.4 No quality triggers assigned C19012SP Nested bore. Water level and 423767 7556821 No quality triggers assigned C19017SP quality 423736 7556821 No quality triggers assigned Nested bore. Water level and No quality triggers assigned quality No quality triggers assigned No quality triggers assigned
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Fraction -g/L 6.0 - 9.0 (sum) 14685 Tertiary Sediments 8698 Parametera Units 440 C029P2 C558P1 C9845SPR C9180121SPR C18004SPb C18005SPb C18006SPb C18009SPb 55 6.0 - 9.0 6.0 - 9.0 5.8-9.0 5.5 - 9.0 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 pH (field) N/A 13 12100 2000 3800 61160 25700 -S/cm 34 9656 40525 53150 Electrical 11 7485 conductivity mg/L 0.05 6232 1200 2300 36400 45880 50510 21560 Total mg/L 7760 310 dissolved 0.06 55 260 64 98 803 2380 2997 946 solids 0.7 13 55 55 55 34 13 13 13 Sulphate 0.24 11 34 34 34 0.05 11 11 11 Aluminium -g/L 1658 1440 0.05 0.05 0.05 55 55 55 55 1.4 0.06 410 5 344 Arsenic -g/L 10 0.7 0.06 0.06 0.06 13 13 13 13 12 0.7 0.1 0.7 -g/L 0.1 34 34 34 34 Molybdenum 0.1 0.1 0.1 1260 Selenium -g/L 1.4 840 240 314 11 11 11 11 20 3 1.4 1.4 Silver -g/L 11 180 3 0.05 0.05 0.05 0.05 122 11 11 Iron -g/L 55 120 170 674 80 Mercury -g/L 0.06 0.06 0.06 0.06 Nitrate as N mg/L 0.7 0.7 0.7 0.7 mg/L Total -g/L 0.1 0.37 0.1 0.1 Phosphorus as P 1423 5070 5855 1328 1.4 17 14 1.4 Boron 1.4 185 1.4 12 30 37 23 13 Cobalt -g/L Copper -g/L Nickel -g/L Permit Environmental authority Zinc -g/L 22 32 67 41 2160 8 120 8 46 TRH C6 - C10 -g/L 20 20 20 20 20 20 20 20 20 Fraction TRH >C10 -
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Fraction -g/L 100 100 100 100 100 100 100 100 100 (sum) Clematis Sandstone Parametera Units C14011SP C14012SP C14013SP C14021SP C14033SP HD02 HD03A C18001SP C18002SP C19002SPc 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 5.4- 9.0 pH (field) N/A 4.9 - 9.0 6.0 - 9.0 4.9 - 9.0 5.6 - 9.0 5.1- 9.0 6.0 - 9.0 343 730 667 380 Electrical -S/cm 272 490 410 620 377 633 conductivity Total dissolved mg/L 173 290 248 369 233 380 430 379 225 202 solids Sulphate mg/L 6 6 11 21 4 5 12 9 1 8 Aluminium -g/L 55 55 55 55 55 55 55 55 55 55 Arsenic -g/L 13 13 13 13 13 13 13 13 13 13 Molybdenum -g/L 34 34 34 34 34 34 34 34 34 34 Selenium -g/L 11 11 11 11 11 11 11 11 11 11 Silver -g/L 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Iron -g/L 15 45 13 14 11 1297 640 1648 5 5 Mercury -g/L 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 Nitrate as N mg/L 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 Total Phosphorus mg/L 0.1 0.1 0.1 0.1 0.1 0.19 0.1 0.1 0.18 0.1 as P Boron -g/L 110 120 120 130 90 113 140 120 65 110 Cobalt -g/L 2 1.4 4 1.4 2 2 1.4 1.4 1.4 1.4 Copper -g/L 13 1.4 16 8 13 1.4 1.4 1.4 1.4 6 Permit Environmental authority Nickel -g/L 11 11 11 11 11 11 11 11 11 11 -g/L 117 Zinc -g/L 82 22 20 56 60 25 45 96 10 72 TRH C6 - C10 -g/L 20 20 100 20 20 20 20 20 20 20 Fraction
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Fraction N/A 5.6 - 9.0 (sum) -S/cm C022P1 C14023SP C180117SP C19007SP C19011SP C19015SP Dunda Beds 5.2 - 9.0 786 6.0 - 9.0 5.7- 9.0 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 mg/L 360 Parametera mg/L 288 489 748 1390 797 712 -g/L 220 pH (field) -g/L 182 21 432 821 468 398 55 17 Electrical 7 13 3 55 27 1 1 conductivity 55 34 55 13 Total 13 11 13 34 55 55 55 dissolved 34 0.05 34 11 solids 11 2477 11 0.05 13 13 13 Sulphate 0.05 0.06 0.05 1498 5 0.7 5 0.06 Aluminium 0.06 0.06 0.7 0.7 0.1 0.7 Arsenic 0.1 0.1 210 0.1 -g/L 2 76 44 34 34 Molybdenum 130 90 1.4 51 1.4 Selenium -g/L 11 11 11 Silver -g/L 0.05 0.05 0.05 Iron -g/L 5 5 5 Mercury -g/L 0.06 0.06 0.06 Nitrate as N mg/L 0.7 0.7 0.7 mg/L Total -g/L 0.1 0.1 0.1 Phosphorus as P 73 25 100 Boron Cobalt -g/L 1.4 1.4 1.4 Permit Environmental authority Copper -g/L 68 2 1.4 103 1.4 1.4 1.4 11 11 11 20 Nickel -g/L 47 45 8 73 11 11 11 20 20 20 20 Zinc -g/L 8 8 8 100 100 100 100 TRH C6 - C10 20 20 20 -g/L C008P1 C035P1 C555P1 C556P1 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 5.4 - 9.0 100 100 100 Fraction 22790 TRH >C10 - 4000 830 260
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Fraction -g/L 15690 (sum) 2400 490 172 244 Rewan Formation 55 57 1 11 13 55 55 55 Parametera Units 34 13 13 13 C9553P1R C9838SPR C919016SPR 11 34 34 34 5.8 - 9.0 5.2 - 9.0 6.0 - 9.0 pH (field) N/A 0.05 11 11 11 787 2155 0.05 0.05 0.05 526 414 Electrical -S/cm 0.06 342 1764 65 conductivity mg/L 0.7 0.06 0.06 0.06 316 252 460 Total mg/L 0.7 0.7 0.7 dissolved 0.26 59 8 20 solids 0.1 0.1 0.2 1580 Sulphate 710 264 110 Aluminium -g/L 55 55 55 Arsenic -g/L 13 13 13 -g/L 34 34 34 Molybdenum Selenium -g/L 11 11 11 Silver -g/L 0.05 0.05 0.05 Iron -g/L 2700 23 5 Mercury -g/L 0.06 0.06 0.06 Nitrate as N mg/L 0.7 0.7 0.7 mg/L Total -g/L 0.3 0.1 0.1 Phosphorus as P 210 133 60 Boron Permit Environmental authority Cobalt -g/L 10 1.4 1.4 5 1.4 1.4 1.4 16 1.4 Copper -g/L 29 11 1.4 26 34 10 1.4 59 50 Nickel -g/L 20 20 11 11 11 11 11 Zinc -g/L 238 100 31 44 40 48 37 TRH C6 - C10 C008P2 C014P2 20 20 20 20 20 -g/L 6.0 - 9.0 6.0 - 9.0 100 100 188 100 100 Fraction 2916 1927 TRH >C10 -
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Fraction -g/L 1800 1077 (sum) 91 40 55 55 Bandanna Formation 13 13 Parametera Units C032P2 C035P2 C19027SP C018P2 C847SP 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 5.3 - 9.0 pH (field) N/A 1300 1541 1789 1800 358 Electrical -S/cm conductivity mg/L 790 916 1000 1005 257 mg/L Total 2 20 27 7 8 dissolved 55 solids 13 34 Sulphate 11 0.05 Aluminium -g/L 235 55 55 55 55 0.06 Arsenic -g/L 0.7 13 13 13 13 Molybdenum -g/L 34 34 0.1 34 34 34 34 Selenium -g/L 11 11 11 11 11 11 Silver -g/L 0.05 0.05 0.05 0.05 0.05 0.05 Iron -g/L 58 178 444 5 533 22 Mercury -g/L 0.06 0.06 0.06 0.06 0.06 0.06 Nitrate as N mg/L 0.7 0.7 0.7 0.7 0.7 0.7 Total Phosphorus mg/L 0.1 0.1 0.1 0.1 0.1 0.1 as P Permit Environmental authority Boron -g/L 266 347 370 261 537 570 110 1.4 Cobalt -g/L 1.4 1.4 1.4 1.4 1.4 1.4 8 11 Copper -g/L 1.4 1.4 1.4 1.4 1.4 1.4 54 20 Nickel -g/L 11 24 11 11 11 11 100 Zinc -g/L 24 8 24 24 8 15 C19029SPd TRH C6 - C10 -g/L 20 20 20 20 20 20 Fraction TRH >C10 -
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Fraction -g/L 100 100 100 100 100 100 (sum) Colinlea Sandstone (D Seam) Parametera Units C006P3R C011P3 C018P3 C024P3 C034P3 C833SP C848SP C975SP pH (field) N/A 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 6.0 - 9.0 6.0 - 11.2 6.0 - 9.0 5.4 - 9.0 6.0 - 9.0 Electrical -S/cm 1030 960 1020 1500 2000 1210 3000 608 1127 conductivity Total mg/L 631 574 610 860 1200 800 1800 353 673 dissolved mg/L 6 solids -g/L 55 1 15 23 30 8 20 27 1 Sulphate -g/L 13 55 55 55 55 13 55 55 55 55 13 13 13 Aluminium 34 34 34 34 11 13 13 13 13 11 11 11 Arsenic 0.05 0.05 0.05 0.05 474 1832 91 165 Molybdenum -g/L 34 0.06 34 34 34 34 0.06 0.06 0.06 0.7 0.7 0.7 0.7 Selenium -g/L 11 11 11 11 11 Silver -g/L 0.05 0.05 0.05 0.05 0.05 Iron -g/L 240 860 18220 2796 46 Mercury -g/L 0.06 0.06 0.06 0.06 0.06 Nitrate as N mg/L 0.7 0.7 0.7 0.7 0.7 Permit Environmental authority Total mg/L 0.1 0.1 0.1 0.18 0.1 0.1 0.1 0.1 0.1 Phosphorus -g/L 160 as P 1.4 450 360 371 250 190 190 190 380 1.4 Boron 11 19 Cobalt -g/L 20 1.4 1.4 5 1.4 1.4 1.4 1.4 1.4 Copper -g/L 100 1.4 1.4 1.4 1.4 1.4 1.4 15 1.4 Nickel -g/L C012P1 11 11 36 11 11 11 11 11 Zinc -g/L 15 18 100 307 10 24 153 53 TRH C6 - C10 20 20 20 20 20 20 20 20 -g/L 100 100 100 100 100 100 100 100 Fraction TRH >C10 -
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Fraction -g/L (sum) Joe Joe Group Parametera Units C012P2 C14003SP C14006SP C14008SP C14015SP C14017SP C14032SP C180119SP C180123SP C914001SPR pH (field) N/A 5.7-9.0 6.0 - 9.0 5.2-9.0 6.0 - 9.0 5.7 - 9.0 6.0 - 9.0 6.0 - 9.0 5.5-9.0 6.0 - 9.0 6.0 - 9.0 5.9-9.0 2160 758 840 Electrical -S/cm 2067 2600 53230 8600 690 2500 6800 21300 conductivity Total mg/L 1301 1600 43245 5222 410 1570 4100 1230 441 516 14855 dissolved mg/L solids -g/L 56 53 2715 216 14 65 120 33 8 26 1500 Sulphate -g/L 55 55 55 55 55 55 55 55 13 13 13 13 13 13 13 55 55 55 13 Aluminium 34 34 34 34 34 34 34 34 11 11 11 11 11 11 11 13 13 13 11 Arsenic 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 95 443 7988 2560 580 540 -g/L 17460 34 34 34 9140 Molybdenum Selenium -g/L 11 11 11 Silver -g/L 0.05 0.05 0.05 Iron -g/L 2126 1370 282 Permit Environmental authority Mercury -g/L 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.7 Nitrate as N mg/L 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.1 Total 2000 Phosphorus mg/L 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.4 1.4 as P 11 170 Boron -g/L 447 500 3930 502 112 420 766 170 161 356 20 Cobalt -g/L 1.4 1.4 36 1.4 10 1.4 3 1.4 1.4 1.4 100 Copper -g/L 1.4 40 660 1.4 1.4 1.4 1.4 1.4 1.4 1.4 Nickel -g/L 11 11 33 11 11 11 11 11 11 11 Zinc -g/L 79 18 105 195 193 122 80 273 2000 8 TRH C6 - C10 -g/L 20 20 20 20 20 20 20 20 20 20 Fraction TRH >C10 -
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Fraction -g/L 100 289 100 100 100 100 100 100 100 100 (sum) Joe Joe Group Parametera Units C914030SPR C9180124SPR C9180125SPR 5.7-9.0 5.5 - 9.0 6.0 - 9.0 pH (field) N/A 602 473 1000 Electrical -S/cm 348 280 607 conductivity mg/L Total mg/L 12 7 18 dissolved 55 55 55 solids 13 13 13 34 34 34 Sulphate 11 11 11 0.05 0.05 0.05 Aluminium -g/L Arsenic -g/L -g/L Molybdenum Selenium -g/L Silver -g/L Permit Environmental authority Iron -g/L 749 110 78 Mercury -g/L 0.06 0.06 0.06 Nitrate as N mg/L 0.7 0.7 0.7 Total Phosphorus mg/L 0.1 0.1 0.1 as P Boron -g/L 119 92 286 Cobalt -g/L 8 1.4 1.4 Copper -g/L 1.4 3 3 Nickel -g/L 11 11 11 Zinc -g/L 180 656 223 TRH C6 - C10 -g/L 20 20 20 Fraction TRH >C10 -
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Fraction -g/L 100 100 100 (sum) Notes: a Trigger values for hydrocarbons are defined at the limit of reporting (LOR) for each parameter, unless sufficient data warranted a bore specific trigger be derived. Since the LOR may vary between analyses due to methods and matrix effects, Table E2 lists triggers for Total Recoverable Hydrocarbon (TRH) fractions C6-C10 and >C10-C40, which have been selected using the lowest historical LOR. The lowest historical LOR thus provides a conservative measure to take into account this potential variation in LORs. b Bores with screened intervals in weathered tertiary. c C19002SP is a replacement bore for C180118SP. The triggers to be updated after additional data obtained in 2022. Till such time triggers for bore C180118SP will be used. d Triggers for C19029SP determined from combined dataset from C19029SP and C180114SP (bore C180114SP was replaced by C19029SP). Permit Environmental authority Table E4 -Groundwater level thresholds Groundwater level drawdown Easting (GDA94 - Zone 55) Northing (GDA94 - Zone 55) Groundwater Level Drawdown thresholds Monitoring1 Location Unit Threshold (m) Carmichael River Location C027P1 Alluvium 433643.08 7554818.39 2.805 427559.00 7556120.00 0.63 HD03B Alluvium 433648.21 7554818.54 1.19 437691.19 7555082.39 0.67 C027P2 Dunda Beds 437687.63 7555080.91 0.55 438020.82 7555845.82 1.19 C029P1 Alluvium 438010.34 7555844.69 1.50 443775.64 7559581.18 0.23 C029P2 Tertiary sediments 444964.65 7558330.02 0.13 443446.61 7556785.07 0.79 C19001SP Alluvium C025P2 Tertiary sediments C14028SP Alluvium C14027SP Alluvium C14006SP* Joe Joe Group Great Artesian Basin to West of Mine Lease C19002SP Clematis Sandstone 423804.06 7568099.87 2.07 C14033SP Clematis Sandstone 418210.8 7566775.83 0.32 C14011SP Clematis Sandstone 426130.96 0.58 C14012SP Clematis Sandstone 424896.07 7561454.81 0.40 C14013SP Clematis Sandstone 424895.49 7560596.18 0.43
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Clematis Sandstone 423822.04 7560591.10 0. 26 HD03A Clematis Sandstone 427562.00 7557008.25 0.69 C14021SP Clematis Sandstone 429796.25 7556132.00 1.37 C022P1 Dunda Beds 426812.52 7550966.33 3.10 C027P2 Dunda Beds 433648.21 7565961.84 1.19 C14023SP Dunda Beds 429801.74 7554818.54 0.39 7550968.73 Permit Environmental authority Groundwater level drawdown Unit Easting (GDA94 - Zone 55) Northing (GDA94 - Zone 55) Groundwater Level Drawdown thresholds Monitoring1 Location Threshold (m) 435915.16 7547522.16 C180117SP Dunda Beds 421010.11 7573974.87 3.81 C9553P1R Rewan Formation 436524.08 7549881.55 3.45 432461.38 7557892.99 76.34 C556P1 Rewan Formation 65.88 C555P1 Rewan Formation Doongmabulla to West of Mine Lease
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Clematis Sandstone 423822.04 7557008.25 0.26 427562.00 7556132.00 0. 69 HD03A Clematis Sandstone 424895.49 7560591.10 0.43 426812.52 7565961.84 3.10 C14013SP Clematis Sandstone 424896.07 7560596.18 0.40 429796.76 7550966.33 1.37 C022P1 Dunda Beds 429783.15 7550956.80 32.4 C14012SP Clematis Sandstone / Rewan 430311.51 7566903.01 129 424873.59 7570989.17 186 C14021SP Clematis Sandstone 424873.59 7570989.17 154 C14206VWP_12 AB Seam 442363.39 7543815.03 115.7 C558VWP12 D seam 441384.00 447056.56 C968VWP_P22 D seam 448579.21 448587.45 C968VWP_P52 AB seam 448077.54 448600.00 C848SP D seam 447039.74 Mellaluka Springs to the southeast of Mine Lease C851VWP22 AB Seam 7542877.33 122.4 7531729.89 1.29 C180120SP Tertiary sediments/Joe Joe Group 7536348.70 0.42 7536355.38 0.29 C180122SP Tertiary sediments / Joe Joe Group 7529357.50 0.34 7536357.00 0.32 C180119SP* Joe Joe Group 7531738.83 0.56 C180123SP* Joe Joe Group C9180124SPR* Joe Joe Group C9180125SPR* Joe Joe Group Permit Environmental authority Groundwater level drawdown Unit Easting (GDA94 - Zone 55) Northing (GDA94 - Zone 55) Groundwater Level Drawdown thresholds Monitoring1 Location Threshold (m) Sentinel Bores C14016SP* Joe Joe Group 444852.34 7541471.06 25.57 C9845SPR Tertiary sediments 439410.87 7544903.28 19.48 C14029SP Tertiary sediments / Joe Joe Group 445059.11 7548820.62 1.66 C14003SP Joe Joe Group 440350.8 7568518.85 0.23 C914030SPR Joe Joe Group 445072.27 2.07 C14015SP* Joe Joe Group 445301.98 7548821 5.26 C016P2* AB seam 422017.38 7536138.69 143.77 C14004SP Joe Joe Group 440355.93 7574974.58 5.52 C14008SP* Joe Joe Group 444760.74 7568513.34 1.58 C180116SP Rewan Formation 439392.91 7552697.83 15.14 C14024SP Clematis Sandstone / Rewan Group 430036.80 7540908.81 1.92 C14020SP Moolayember Formation 418230.28 7543917.13 0.27 7566782.35 Note: 1 The period of measurement for change threshold is the life of the mine. Note: 2 VWP