Data as at 14 September 2026 · from the Queensland EP Act public register
EPML00959213 · ARGO NATURAL RESOURCES PTY LTD
Coal environmental authority EPML00959213 (ARGO NATURAL RESOURCES PTY LTD), Granted. 217 conditions indexed. Holds PRC plan P-PRCP-100875847.
- Status
- Granted
- Holders
- ARGO NATURAL RESOURCES PTY LTD
- Tenures
- ML700067; ML70339; ML70340; ML70374; ML70375; ML70482; ML70484
- PRC plan
- P-PRCP-100875847 · effective 2026-05-06
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
217 numbered conditions read from the current instrument. Page numbers link into the register PDF.
- A1
This environmental authority does not authorise environmental harm unless a condition contained within the environmental authority explicitly authorises the harm. Where there is no condition or the environmental authority is silent on a matter, the lack of condition or silence shall not be construed as authorising harm.
- A2
In the carrying out the mining activity authorised by this environmental authority, the holder of this environmental authority must prevent and/or minimise the likelihood of environmental harm being caused.
- A3
Coal Extraction The environmental authority holder is approved for a coal extraction rate of up to five (5) million tonnes per annum (Mtpa) of run-of-mine (ROM) ore in accordance with this environmental authority.
- A4
Coal Processing Coal from Broadlea Coal Mine, Ironbark No.1 Coal Mine, Broadmeadow East Coal Mine, Burton Coal Mine, Vulcan Coal Mine and Vulcan South Coal Mine is permitted to be processed at the Carborough Downs Coal Handling and Processing Plant (CHPP) at a total combined processing rate not exceeding 12.9Mtpa of ROM coal.
- A5
Reject Disposal Coal rejects from Broadlea Coal Mine and Ironbark No.1 Coal Mine are permitted to be disposed of at Carborough Downs Coal Mine in accordance with the Mining Waste Management Plan required by condition F16. Coal rejects from the processing of coal from Broadmeadow East Coal Mine, Burton Coal Mine, Vulcan Coal Mine and Vulcan South Coal Mine must be removed from the Carborough Downs Coal Mine. Note: The administering authority accepts that coal rejects from the processing of third-party coal will undergo minor mixing with rejects originating from the Broadlea Coal Mine, Ironbark No.1 Coal Mine and Carborough Downs Coal Mine due to CHPP equipment limitations and mechanical handling activities, resulting in minor quantities of third-party coal rejects remaining on the Carborough Downs Coal Mine.
- A6
Maintenance of measures, plant and equipment The environmental authority holder must ensure: (a) that all measures, plant and equipment necessary to ensure compliance with the conditions of this environmental authority are installed; (b) that such measures, plant and equipment are maintained in a proper condition; and (c) that such measures, plant and equipment are operated in a proper manner.
- A7
Monitoring and records All monitoring records or reports required by this environmental authority must be kept for a period of not less than five (5) years.
- A8
Upon request from the administering authority, copies of all records, plans and other documentation required by the conditions of this environmental authority must be made available and provided to the administering authority's nominated office within ten (10) business days or by an alternative timeframe agreed between the administering authority and the holder.
- A9
Where monitoring is a requirement of this environmental authority, ensure that an appropriately qualified person conducts all monitoring. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- A10
Any management or monitoring plans, systems or programs required to be developed and implemented by a condition of this environmental authority must be reviewed for effectiveness in minimising the likelihood of environmental harm on an annual basis, and amended promptly if required, unless a particular review date and amendment program is specified in the plan, system or program.
- A11
Notification of emergencies and incidents All reasonable actions are to be taken to minimise environmental harm, or the risk thereof, resulting from any emergency, incident or circumstances not in accordance with the conditions of this environmental authority.
- A12
The environmental authority holder must notify the administering authority as soon as practicable after becoming aware of any emergency or incident resulting in the release of contaminants, or which threatens the release of contaminants, not authorised to be caused under this environmental authority.
- A13
The notification in condition A12 must include, but not be limited, to the following: (a) the environmental authority number and name of holder; (b) the name and telephone number of the designated contact person; (c) the location of the emergency or incident; (d) the date and time of the release; (e) the time the holder of the environmental authority became aware of the release; (f) the estimated quantity and type of substance released; (g) the suspected cause of the release; (h) a description of the effects of the release including environmental harm and/or environmental nuisance caused, threatened, or suspected to be caused by the release; (i) any sampling conducted or proposed, relevant to the emergency or incident; and (j) immediate actions taken to prevent any further release and mitigate any environmental harm and/or environmental nuisance caused by the release.
- A14
Not more than fourteen (14) days following the initial notification of an emergency or incident, further written advice must be provided to the administering authority, including the following: (a) results and interpretation of any samples taken and analysed; (b) outcomes of actions taken at the time to prevent or minimise environmental harm or environmental nuisance; and (c) proposed actions to prevent a recurrence of the emergency or incident.
- A15
Activity Land subject to mining activities and works previously approved under parts of MDL 354, MDL 359, EPC 667 and EPC 675 that subsequently became ML 70339, ML 70340, ML 70374, ML 70375, ML 70484 and ML 70482 irrespective of its termination; must be rehabilitated to result in sites that are: (a) non-polluting; (b) safe to humans and wildlife; (c) stable; and (d) able to sustain an agreed post-mining land use. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- A16
Exploration Notwithstanding condition A15, exploration activities conducted under this environmental authority must be conducted in accordance with the rehabilitation conditions of the administering authority's Eligibility criteria and standard conditions for exploration and mineral development projects--
- A17
Contaminants must not be released to the receiving environment unless in accordance with the contaminant limits authorised by this environmental authority.
- A18
Complaints All complaints received must be recorded, including details of complaint, reasons for the complaint, investigations undertaken, conclusions formed and actions taken. This information must be made available for inspection by the administering authority on request. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Agency interest: Air Condition Condition number
- B1
Subject to conditions B2 and B3 the release of dust or particulate matter resulting from the mining activity must not cause an environmental nuisance, at any sensitive or commercial place.
- B2
When requested by the administering authority, dust and particulate monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised person) of environmental nuisance at any sensitive or commercial place, and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring.
- B3
If the environmental authority holder can provide evidence through monitoring that the following limits are not being exceeded, then the holder is not in breach of condition B1: (a) Dust deposition of 120 milligrams per square metre per day, averaged over one month when monitored in accordance with AS 3580.10.1 Methods for sampling and analysis of ambient air - Determination of particulates - Deposited matter - Gravimetric method of 1991 (or more recent editions); and (b) A concentration of particulate matter with an aerodynamic diameter of less than 10 micrometre (m) (PM10) suspended in the atmosphere of 50 micrograms per cubic metre over a 24-hour averaging time, at a sensitive or commercial place downwind of the operational land, when monitored in accordance with: (i) Particulate matter - Determination of suspended particulate PM10 high-volume sampler with size-selective inlet - Gravimetric method, when monitored in accordance with AS 3580.9.6 Methods for sampling and analysis of ambient air - Determination of suspended particulate matter - PM10 high volume sampler with size-selective inlet - Gravimetric method of 1990 (or more recent editions); or (ii) Any alternative method of sampling PM10, which may be permitted by the Air Quality Sampling Manual as published from time to time by the administering authority.
- B4
If monitoring indicates exceedance of the relevant limits in condition B3, then the environmental authority holder must investigate whether the exceedance is due to emissions of dust from the activity. If the mining activity is found to be the cause of the exceedance, then the environmental authority holder must: (a) address the complaint including the use of appropriate dispute resolution if required; and (b) immediately implement dust abatement measures so that emissions of dust from the activity do not result in further environmental nuisance.
- B5
The results of PM10, dust deposition and meteorological monitoring must be reported to the administering authority on request.
- B6
If requested by the administering authority, the results of PM10, dust deposition and meteorological monitoring must be made available for use in any air quality monitoring network in the Moranbah region operated independently of mining operations. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- B7
Odour nuisance Subject to requirement of condition B8, the release of noxious or offensive odour(s) or any other noxious or offensive airborne contaminant(s) resulting from the mining activity must not cause an environmental nuisance at any sensitive or commercial place.
- B8
When requested by the administering authority, odour monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised person) of environmental nuisance at any sensitive or commercial place, and the results must be notified with fourteen (14) days to the administering authority following completion of monitoring.
- B9
If the administering authority determines the odour released to constitute a noxious or offensive odour, then the environmental authority holder must: (a) address the complaint including the use of appropriate dispute resolution if required; and (b) immediately implement odour abatement measures so that emissions of odour from the activity do not result in further environmental nuisance. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Agency interest: Water Condition Condition number
- C1
Contaminant release Contaminants that will or have the potential to cause environmental harm must not be released directly or indirectly to any waters as a result of the authorised mining activities, except as permitted under the conditions of this environmental authority.
- C2
Unless otherwise permitted under the conditions of this environmental authority, the release of mine affected waters must only occur from the release points specified in Table C1 (Mine affected water release points, sources and receiving waters) and indicated in Appendix 1 - Monitoring Points, Release Points & Treated Wastewater Irrigation Area attached to this environmental authority.
- C3
Mine affected water is permitted to be released from release points specified in Table C1 (Mine Affected Water Release Points, Sources and Receiving Waters) based on flow criteria in the Isaac River when there is no local flow in Billie's Gully in accordance with Table C2 (Mine Affected Water Release during Flow Events). Table C1 (Mine Affected Water Release Points, Sources and Receiving Waters) Release Latitude Longitude Mine Affected Water Monitoring Receiving Point (RP) (GDA2020) (GDA2020) Source and Location Point waters RP 1 description RP 2 RP 3 -21.98472 148.24949 Carborough Truck Fill Pump intake / North Creek RP 3a Dam End of Pipe RP 4 -21.98313 148.23003 Carborough Truck Fill Pump intake / Billie's Gully Dam End of Pipe -21.95511 148.20943 CHPP Process Dam 1 Pump intake / Billie's Gully End of Pipe -21.95148 148.21298 CHPP Process Dam 1 Pump intake / Billie's Gully End of Pipe -21.96228 148.19967 DREA Sediment Dam Pump intake / Billie's Gully End of Pipe
- C4
The release of mine affected water to internal water management infrastructure that is installed and operated in accordance with a water management plan that complies with conditions C33 to
- C5
The release of mine affected waters to waters in accordance with condition C2 and condition C3 must not exceed the release limits stated in Table C3 (Mine Affected Water Release Limits) when measured at the monitoring points specified in Table C1 (Mine affected water release points, sources and receiving waters) for each quality characteristic. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table C2 (Mine Affected Water Release during Flow Events) Receiving Release Gauging Latitude Longitude Receiving Water Flow Receiving Water Maximum Electrical Conductivity and Sulphate waters Point station (GDA2020) (GDA2020) Recording Frequency Flow Criteria for release rate Release Limits /stream (RP) release (m3/s)
- GS1
-21.94669 148.29504 Continuous (minimum 1.08m3/s Electrical Conductivity 800-S/cm North RP1 (shown in daily) Low Flow Sulphate 500mg/L Appendix 2 1m3/s 0.8m3/s Creek - Receiving Electrical Conductivity 1,200-S/cm Environme Sulphate 700mg/L nt 0.5 m3/s Electrical Conductivity 1,500-S/cm Monitoring Sulphate 700mg/L Points & Low Flow 0.75m3/s Electrical Conductivity 1,500-S/cm Gauging 1.5m3/s 1m3/s Sulphate 700mg/L Stations) 0.96m3/s Electrical Conductivity 1,500-S/cm Medium Flow 0.29m3/s Sulphate 700mg/L 2m3/s Electrical Conductivity 2,000-S/cm Sulphate 700mg/L Medium Flow Electrical Conductivity 5,000-S/cm 2.5m3/s Sulphate 700mg/L Electrical Conductivity 10,000-S/cm 0.13m3/s Sulphate 700mg/L Electrical Conductivity 5,000-S/cm Medium Flow 1.16m3/s Sulphate 700mg/L 10m3/s 0.53m3/s Electrical Conductivity 10,000-S/cm Sulphate 700mg/L High Flow 2.68m3/s Electrical Conductivity 10,000-S/cm 50m3/s Sulphate 700mg/L Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Receiving Release Gauging Latitude Longitude Receiving Water Flow Receiving Water Maximum Electrical Conductivity and Sulphate waters Point station (GDA2020) (GDA2020) Recording Frequency Flow Criteria for release rate Release Limits /stream (RP) release (m3/s) 0.35m3/s
- GS2
-21.95072 148.21379 Continuous (minimum Medium Flow 0.31m3/s Electrical Conductivity 800-S/cm Billie's RP2 (shown in daily) 0.1m3/s 0.28m3/s Sulphate 500mg/L
- GS3
- -21.86813 147.97163 Continuous (minimum Medium Flow Electrical Conductivity 800-S/cm Isaac RP2 Moranbah daily) 10m3/s 0.36m3/s Sulphate 500mg/L River RP3 North MP1 0.77m3/s Electrical Conductivity 1,000-S/cm (via Billie's RP3a (shown in Medium Flow Sulphate 700mg/L Appendix 2) 15m3/s 0.54m3/s Electrical Conductivity 800-S/cm Gully) RP4 Sulphate 500mg/L Electrical Conductivity 1,000-S/cm Medium Flow 1.03m3/s Sulphate 700mg/L 20m3/s 0.72m3/s Electrical Conductivity 800-S/cm Sulphate 500mg/L Medium Flow 1.07m3/s Electrical Conductivity 1,000-S/cm 30m3/s 0.1m3/s Sulphate 700mg/L Electrical Conductivity 1,000-S/cm Medium Flow 0.1m3/s Sulphate 700mg/L 50m3/s 0.45m3/s Electrical Conductivity 2,000-S/cm 0.21m3/s Sulphate 700mg/L High Flow Electrical Conductivity 3,000-S/cm 100m3/s Sulphate 700mg/L Electrical Conductivity1,500-S/cm 0.12m3/s Sulphate 700mg/L Electrical Conductivity 3,000-S/cm Flood Flow 0.12m3/s Sulphate 700mg/L Electrical Conductivity 5,000-S/cm 200m3/s Sulphate 700mg/L Electrical Conductivity 10,000-S/cm Sulphate 700mg/L NOTE: Simultaneous releases can occur provided that total electrical conductivity and total release rates are not exceeded. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table C3 (Mine Affected Water Release Limits) Quality Release Limits Monitoring Comment Characteristic frequency Electrical Release limits specified in Daily during release (the first conductivity sample must be taken within (-S/cm) Table C2 (Mine Affected 2 hours of commencement of Water Release during Flow release) Events) for variable flow criteria. pH (pH Unit) 6.0 (minimum) Daily during release (the first 9.0 (maximum) sample must be taken within 2 hours of commencement of release) Turbidity (NTU) NA* Daily during release* (first Turbidity is required to sample within two hours of assess ecosystems impacts commencement of release) and can provide instantaneous results. Suspended Solids RP1 = 1074 Daily during release* (first Suspended solids are sample within 2 hours of required to measure the (mg/L) RP2/RP3/RP3a/RP4 = 332 commencement of release) performance of sediment and erosion control measures.
- C6
The release of mine affected water to waters from the release points must be monitored at the locations specified in Table C1 (Mine affected water release points, sources and receiving waters) for each quality characteristic and at the frequency specified in Table C2 (Mine affected water release limits) and Table C4a (Release contaminant trigger investigation levels: North Creek) and Table C4b (Release contaminant trigger investigation levels: Billie's Gully/Isaac River). NOTE: The administering authority will take into consideration any extenuating circumstances prior to determining an appropriate enforcement response, in the event condition C6 is contravened due to a temporary lack of safe or practical access. The administering authority expects the environmental authority holder to take all reasonable and practicable measures to maintain safe and practical access to designated monitoring locations. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table C4a (Release contaminant trigger investigation levels: North Creek) Quality Characteristic Trigger Levels Comment on Trigger Level Monitoring (ug/L) Frequency Aluminium 1170 Based on 80th percentile of background data Arsenic 13 For aquatic ecosystem protection, based on SMD guideline Chromium 1 For aquatic ecosystem protection, based on SMD guideline Copper 3 Based on 80th percentile of background data Iron 1120 Based on 80th percentile of background data Lead 10 For aquatic ecosystem protection, based on SMD guideline Mercury 0.2 For aquatic ecosystem protection, based on LOR for CV FIMS Nickel 11 For aquatic ecosystem protection, based on SMD guideline Zinc 8 For aquatic ecosystem protection, based on SMD guideline Boron 370 For aquatic ecosystem protection, based on SMD guideline Cobalt 90 For aquatic ecosystem protection, based on low reliability guideline Commencement
- C9
100 irrigation guideline Petroleum hydrocarbons 2000 (C10-C36) 142,000 Fluoride (total) Sodium NOTE: A) All metals and metalloids must be measured as total (unfiltered) and dissolved (filtered). Trigger levels for metal/metalloids apply if dissolved results exceed trigger. B) The quality characteristics required to be monitored as per Table C4b can be reviewed once the results of two years monitoring data is available, or if sufficient data is available to adequately demonstrate negligible environmental risk, and it may be determined that a reduced monitoring frequency is appropriate or that certain quality characteristics can be removed from Table C4b by amendment. C) SMD - slightly moderately disturbed level of protection, guideline refers ANZECC and ARMCANZ (2000). D) LOR - typical reporting for method stated. ICPMS/CV FIMS - analytical method required to achieve LOR Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C7
If quality characteristics of the release exceed any of the trigger levels specified in Table C4a (Release contaminant trigger investigation levels: North Creek) or Table C4b (Release contaminant trigger investigation levels: Billie's Gully/Isaac River) during a release event, the environmental authority holder must compare the downstream results in the receiving waters to the trigger values specified in Table C4a (Release contaminant trigger investigation levels: North Creek) or Table C4b. (Release contaminant trigger investigation levels: Billies Gully/Isaac River) and: (a) where the trigger values are not exceeded then no action is to be taken; or (b) where the downstream results exceed the trigger values specified in Table C4a (Release contaminant trigger investigation levels: North Creek) or Table C4b (Release contaminant trigger investigation levels: Billie's Gully/Isaac River) for any quality characteristic, compare the results of the downstream site to the data from background monitoring sites and; (i) if the result is less than the background monitoring site data, then no action is to be taken; or (ii) if the result is greater than the background monitoring site data, complete an investigation in accordance with the ANZECC and ARMCANZ 2000 methodology, into the potential for environmental harm and provide a written report to the administering authority in the next annual return, outlining: (1) details of the investigations carried out; and (2) actions taken to prevent environmental harm. NOTE: Where an exceedance of a trigger level has occurred and is being investigated in accordance with condition C7(b)(ii), no further reporting is required for subsequent trigger events for that quality characteristic.
- C8
If an exceedance in accordance with condition C7(b)(ii) is identified, the holder of the authority must notify the administering authority within fourteen (14) days of receiving the result.
- C9
Mine affected water release events The holder must ensure a stream flow gauging station(s) is installed, operated and maintained to determine and record stream flows at the locations and flow recording frequency specified in Table C2 (Mine Affected Water Release during Flow Events).
- C10
Notwithstanding any other condition of this environmental authority, the release of mine affected water to waters in accordance with condition C2 must only take place during periods of natural flow events in accordance with the receiving water flow criteria for discharge specified in Table C2 (Mine Affected Water Release during Flow Events) for the release point(s) specified in Table C1 (Mine affected water release points, sources and receiving waters).
- C11
The release of mine affected water to waters in accordance with condition C2 must not exceed the electrical conductivity and sulphate release limits or the maximum release rate (for all combined release point flows) for each receiving water flow criteria for discharge specified in Table C2 (Mine Affected Water Release during Flow Events) when measured at the monitoring points specified in Table C1 (Mine affected water release points, sources and receiving waters).
- C12
The daily quantity of mine affected water released from each release point must be measured and recorded at the monitoring points in Table C1 (Mine affected water release points, sources and receiving waters).
- C13
Releases to waters must be undertaken so as not to cause erosion of the bed and banks of the receiving waters or cause a material build-up of sediment in such waters. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C14
Notification of release event The environmental authority holder must notify the administering authority via WaTERS as soon as practicable and no later than twenty-four (24) hours after commencing to release mine affected water to the receiving environment. Notification must include the submission of written verification to the administering authority of the following information: (a) Release commencement date and time; (b) Expected release cessation date and time; (c) Release point(s); (d) Release volume (estimated); (e) Receiving water(s) including the natural flow rate; and (f) Any details (including available data) regarding likely impacts on the receiving water(s).
- C15
The environmental authority holder must notify the administering authority as soon as practicable (nominally within twenty-four (24) hours after of cessation of a release event) of the cessation of a release notified under condition C14 and within twenty-eight (28) days provide the following information in writing: (a) Release cessation date and time; (b) Natural flow volume in receiving water; (c) Volume of water released; (d) Details regarding the compliance of the release with the conditions of Department Interest: Water of this environmental authority (i.e. contamination limits, natural flow, discharge volume); (e) All in-situ water quality monitoring results; and (f) Any other matters pertinent to the water release event. NOTE: Successive or intermittent releases occurring within twenty-four (24) hours of the cessation of any individual release can be considered part of a single release event and do not require individual notification for the purpose of compliance with conditions C15 and C16, provided the relevant details of the release are included within the notification provided in accordance with conditions C15 and C16.
- C16
Notification of release event exceedance If the release limits defined in Table C3 (Mine Affected Water Release Limits) are exceeded, the holder of the environmental authority must notify the administering authority within twenty- four (24) hours of receiving the results.
- C17
The authority holder must, within twenty-eight (28) days of a release that exceeds the conditions of this authority, provide a report to the administering authority detailing: (a) The reason for the release; (b) The location of the release; (c) All water quality monitoring results; (d) Any general observations; (e) All calculations; and (f) Any other matters pertinent to the water release event.
- C18
Monitoring of water storage quality Water storages stated in Table C5 (Water storage monitoring) which are associated with the release points must be monitored for the water quality characteristics specified in Table C6 (Onsite water storage contaminant limits) at the monitoring locations and at the monitoring frequency specified in Table C5 (Water storage monitoring). Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table C5 (Water storage monitoring) Water Storage Description Latitude Longitude Monitoring Frequency of (GDA2020) (GDA2020) Location Monitoring MP 11 - Carborough Truck Fill Dam -21.98226 148.23218 Water body Quarterly MP 12 - CHPP Process Dam 1 -21.95235 148.21198 Water body Quarterly MP 29 - DREA Sediment Dam -21.96154 148.19953 Water body Quarterly
- C19
In the event that waters storages defined in Table C5 (Water storage monitoring) exceed the contaminant limits defined in Table C6 (Onsite water storage contaminant limits), the holder of the environmental authority must implement measures, where practicable, to prevent access to waters by all livestock.
- C20
The quality of the receiving waters must be monitored at the locations specified in Table C8 (Receiving water upstream background sites and downstream monitoring points) for each quality characteristic and at the monitoring frequency stated in Table C7 (Receiving waters contaminant trigger levels). Table C6 (Onsite water storage contaminant limits) Quality Characteristic* Test Value Contaminant Limit pH (pH unit) Range Greater than 4, less than 92 EC (-S/cm) Maximum 59701 Sulfate (mg/L) Maximum 10001 Fluoride (mg/L) Maximum 21 Aluminium (mg/L) Maximum 51 Arsenic (mg/L) Maximum 0.51 Cadmium (mg/L) Maximum 0.011 Cobalt (mg/L) Maximum 11 Copper (mg/L) Maximum 11 Lead (mg/L) Nickel (mg/L) Maximum 0.11 Maximum 11 Zinc (mg/L) Maximum 201 NOTE: 1 Contaminant limit based on ANZECC and ARMCANZ (2000) stock water quality guidelines. 2 Page 4.2-15 of ANZECC and ARMCANZ (2000) "Soil and animal health will not generally be affected by water with pH in the range of 4-9". NOTE: *Total measurements (unfiltered) must be taken and analysed Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table C7 (Receiving waters contaminant trigger levels) Quality Characteristic Trigger Level Monitoring Frequency pH Daily during the release Electrical Conductivity (-S/cm) 6.5 - 8.5 Suspended solids (mg/L) 1,000 Sulfate (SO42-) (mg/L) 80th percentile of upstream Sodium (mg/L) reference site 1,000 142 Table C8 (Receiving water upstream background sites and downstream monitoring points) Monitoring Points Receiving Waters Location Description Latitude Longitude (MP)* (GDA2020) (GDA2020) Upstream Background Monitoring Points
- MP1
North Creek at 10,100m upstream of RP 1 gully confluence -21.94405 148.29697
- MP27
Isaac River at the Wotonga - Blair Athol Railway Crossing -21.96467 148.04585 Downstream Monitoring Points
- MP2
North Creek at 3,460m downstream of RP 1 gully confluence -22.00639 148.31279 MP26* Billie's Gully REMP Point -21.97890 148.18016 148.13060
- MP28
Isaac River downstream from the Peak Downs Highway -22.04960 Bridge NOTE: *The data from background monitoring points must not be used where they are affected by releases from other mines. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C21
If quality characteristics of the receiving water at the downstream monitoring points exceed any of the trigger levels specified in Table C7 (Receiving waters contaminant trigger levels) during a release event the environmental authority holder must compare the downstream results to the upstream results in the receiving waters and: (a) where the downstream result is the same or a lower value than the upstream value for the quality characteristic then no action is to be taken; or (b) where the downstream results exceed the upstream results complete an investigation into the potential for environmental harm and provide a written report to the administering authority in the next annual return, outlining: (i) details of the investigations carried out; and (ii) actions taken to prevent environmental harm. NOTE: Where an exceedance of a trigger level has occurred and is being investigated in accordance with condition C21(b), no further reporting is required for subsequent trigger events for that quality characteristic.
- C22
Receiving environment monitoring program (REMP) The environmental authority holder must develop and implement a REMP to monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised mining activity. This must include monitoring the effects of the mine on the receiving environment periodically (under natural flow conditions) and while mine affected water is being discharged from the site. For the purposes of the REMP, the receiving environment is the waters of North Creek and Billie's Gully connected or surrounding waterways within 10km downstream of the release. The REMP should encompass any sensitive receiving waters or environmental values downstream of the authorised mining activity that will potentially be directly affected by an authorised release of mine affected water. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C23
The REMP must: (a) assess the condition or state of receiving waters, including upstream conditions, spatially within the REMP area, considering background water quality characteristics based on accurate and reliable monitoring data that takes into consideration temporal variation (e.g. seasonality); (b) be designed to facilitate assessment against water quality objectives for the relevant environmental values that need to be protected; (c) include monitoring from background reference sites (e.g. upstream or background) and downstream sites from the release (as a minimum, the locations specified in Table C8 (Receiving water upstream background sites and downstream monitoring points) ); (d) specify the frequency and timing of sampling required in order to reliably assess ambient conditions and to provide sufficient data to derive site specific background reference values in accordance with the Queensland Water Quality Guidelines 2006. This should include monitoring during periods of natural flow irrespective of mine or other discharges; (e) include monitoring and assessment of dissolved oxygen saturation, temperature and all water quality parameters listed in Table C3 (Mine Affected Water Release Limits); Table C4a (Release contaminant trigger investigation levels: North Creek) or Table C4b (Release contaminant trigger investigation levels: Billie's Gully/Isaac River); (f) include, where appropriate, monitoring of metals/metalloids in sediments (in accordance with ANZECC and ARMCANZ 2000, BATLEY and/or the most recent version of AS5667.1 Guidance on Sampling of Bottom Sediments); (g) include, where appropriate, monitoring of macroinvertebrates in accordance with the AusRivas methodology; (h) apply procedures and/or guidelines from ANZECC and ARMCANZ 2000 and other relevant guideline documents; (i) describe sampling and analysis methods and quality assurance and control; and (j) incorporate stream flow and hydrological information in the interpretations of water quality and biological data.
- C24
A REMP Design Document that addresses each criterion presented in conditions C22 and C23 must be prepared and submitted to the administering authority. Due consideration must be given to any comments made by the administering authority on the REMP Design Document and subsequent implementation of the program.
- C25
A report outlining the findings of the REMP, including all monitoring results and interpretations in accordance with conditions C22 and C23 must be prepared annually and made available on request to the administrating authority. This must include an assessment of background reference water quality, the condition of downstream water quality compared against water quality objectives, and the suitability of current discharge limits to protect downstream environmental values. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C26
Water reuse Mine affected water may be piped or trucked or transferred by some other means that does not contravene the conditions of this environmental authority and deposited into artificial water storage structures, such as farm dams or tanks, or used directly at properties owned by the environmental authority holder or a third party for the purpose of: (a) Supplying stock water subject to compliance with the quality release limits specified in Table C9 (Stock water release limits); (b) Supplying irrigation water subject to compliance with quality release limits in Table C10 (Irrigation water release limits); or (c) Supplying water for construction and/or road maintenance in accordance with the conditions of this environmental authority. Table C9 (Stock water release limits) Quality characteristic1 Units Minimum Maximum pH pH units 6.5 8.5 Electrical Conductivity -S/cm N/A 5000 Table C10 (Irrigation water release limits) Quality characteristic Units Minimum Maximum pH Electrical Conductivity pH 6.5 8.5 units Site specific value to be determined in accordance with ANZECC and ARMCANZ (2000) Irrigation Guidelines and/or by -S/cm N/A agreement with third party.
- C27
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 or tanks, for the purpose of supplying structures, such as dams water to another mining operation. The volume, pH and electrical conductivity of water transferred to another mining operation must be monitored and recorded.
- C28
If the responsibility of water contaminated by mining activities (the water) is given or transferred to another person in accordance with conditions C26 or C27: (a) The responsibility of the water must only be given or transferred in accordance with a written agreement (the third party agreement); (b) Include in the third party agreement a commitment from the person utilising the water to use water in such a way as to prevent environmental harm or public health incidences and specifically make the persons aware of the General Environmental Duty (GED) under section 319 of the Environmental Protection Act 1994, environmental sustainability of the water disposal and protection of environmental values of waters; and (c) The third party agreement must be signed by both parties to the agreement. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C29
Water general All determinations of water quality must be: (a) performed by a person or body possessing appropriate experience and qualifications to perform the required measurements; (b) made in accordance with methods prescribed in the latest edition of the administering authority's Monitoring and Sampling Manual; (c) collected from the monitoring locations identified within this environmental authority, within two (2) hours of each other where possible; (d) carried out on representative samples; and (e) laboratory testing must be undertaken using a laboratory accredited (e.g. NATA) method of analysis.
- C30
The release of any contaminants as permitted by this environmental authority, directly or indirectly to waters, other than internal water management infrastructure that is installed and operated in accordance with a water management plan that complies with conditions C33 to C38 inclusive: (a) Must not produce any visible discolouration of receiving waters; nor (b) Must not produce any slick or other visible or odorous evidence of oil, grease or petrochemicals nor contain visible floating oil, grease, scum, litter or other objectionable matter.
- C31
Annual water monitoring reporting The following information must be recorded in relation to all water monitoring required under the conditions of this environmental authority and submitted to the administering authority in the specified format with each annual return: (a) The date on which the sample was taken; (b) The time at which the sample was taken; (c) The monitoring point at which the sample was taken; (d) The measured or estimated daily quantity of the contaminants 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 with the conditions of this environmental authority; and (g) Water quality monitoring data must be provided to the administering authority in the specified electronic format upon request.
- C32
Temporary interference with waterways Temporarily destroying native vegetation, excavating, or placing fill in a watercourse, lake or spring necessary for and associated with mining operations must be undertaken in accordance with the administering authority's Guideline - Activities in a Watercourse, Lake or Spring associated with Mining Activities.
- C33
Water Management Plan A Water Management Plan must be implemented and maintained to ensure it provides for the proper effective management of the actual and potential impacts resulting from the mining activity and to ensure compliance with conditions of this environmental authority. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C34
The Water Management Plan must: (a) provide for effective management of actual and potential environmental impacts resulting for water management associated with the mining activity carried out under this environmental authority; (b) be developed in accordance with the administering authority's guideline Preparation of Water Management Plans for Mining Activities (EM324) and include: (i) a study of the source of contaminants; (ii) a water balance model for the site; (iii) a Water Management System for the site; (iv) measures to manage and prevent Saline Drainage; (v) measures to manage and prevent Acid Rock Drainage; (vi) contingency procedures for emergencies including situations where it is not possible to pump surplus water to another mine site under condition C26; and (vii) a program for monitoring and review of the effectiveness of the water management plan.
- C35
The Water Management Plan must be reviewed each calendar year and a report prepared by an appropriately qualified person. The report must: (a) assess the plan against the requirements under condition C34; (b) include recommended actions to ensure actual and potential environmental impacts are effectively managed for the coming year; and (c) identify any amendments made to the water management plan following the review.
- C36
The holder of this environmental authority must attach to the review report required by condition C35, a written response to the report and recommended actions, detailing the actions taken or to be taken by the environmental authority holder on stated dates: (a) to ensure compliance with this environmental authority; and (b) to prevent a recurrence of any non-compliance issued identified.
- C37
The review report required by condition C35 and the written response to the review report required by condition C36 must be submitted to the administering authority with the subsequent annual return under the signature of the appointed signatory for the annual return.
- C38
A copy of the Water Management Plan must be provided to the administering authority on request.
- C39
Saline drainage The holder of this environmental authority must ensure proper and effective measures are taken to avoid or otherwise minimise the generation and/or release of saline drainage.
- C40
Acid rock drainage The holder of this environmental authority must ensure proper and effective measures are taken to avoid or otherwise minimise the generation and/or release of acid rock drainage.
- C41
Stormwater and water sediment controls An Erosion and Sediment Control Plan must be developed by an appropriately qualified person and implemented for all stages of the mining activities on the site to minimise erosion and the release of sediment to receiving waters and contamination of storm water.
- C42
For the purpose of ensuring water does not become mine affected water, 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 C41; and (b) water management infrastructure that is installed and operated, in accordance with a Water Management Plan that complies with conditions C33 to C38 inclusive.
- C43
The maintenance and cleaning of any vehicles, plant or equipment must not be carried out in areas from which contaminants can be released into any receiving waters. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C44
Any spillage of wastes, contaminants or other materials must be cleaned up as quickly as practicable to minimise the release of wastes, contaminants or materials to any stormwater drainage system or receiving waters.
- C45
Treated wastewater The only contaminant permitted to be released to land is treated wastewater in compliance with the release limits stated in Table C12 (Contaminant release limits to land) that has been measured at the monitoring location defined in Table C11 (Contaminant release monitoring location). Table C11 - Contaminant release monitoring location Monitoring Location Latitude (GDA2020) Longitude (GDA2020) Irrigation Discharge Pump -21.99395 148.26072 Table C12 (Contaminant release limits to land) Contaminant Unit Release limit Limit type Frequency 5 day Biochemical oxygen demand mg/L No Limit (but included in Monthly (BOD) monitoring) Total suspended solids mg/L No Limit (but included in Monthly monitoring) Nitrogen (Total Nitrogen) mg/L as Nitrogen 60 Maximum Monthly Phosphorus (Total Phosphorus) mg/L as 20 Maximum Monthly Phosphorus E.coli c.f.u/100mL 1000 Maximum Monthly Total Chlorine mg/L 5.0 Maximum Weekly pH pH units 6.0 - 9.0 Range Monthly Electrical conductivity (EC) -S/cm 1,600 Maximum Monthly Note: "pH" and "Total Chlorine" must be measured "in-situ" using suitably calibrated equipment
- C46
Treated wastewater may only be released to land in accordance with the conditions of this approval at the locations within the nominated area(s) identified in Appendix 1 - Monitoring Points, Release Points & Treated Wastewater Irrigation Area.
- C47
The released to land of treated wastewater must be carried out in a manner such that: (a) vegetation is not damaged; (b) there is no surface ponding of treated wastewater; and (c) there is no run-off of treated wastewater.
- C48
If areas where treated wastewater is released to land are accessible to employees or the general public, prominent signage must be provided advising that treated wastewater is present and care should be taken to avoid consuming or otherwise coming into unprotected contact with the treated wastewater.
- C49
All treated wastewater released to land must be monitored at the frequency and for the parameters specified in Table C12 (Contaminant release limits to land) at the monitoring location specified in Table C11 (Contaminant release monitoring location).
- C50
The daily volume of treated wastewater released to land at the facility must not exceed 36 kL/day. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C51
The treated wastewater must be monitored for flow and contaminants at the wet weather storage output.
- C52
The daily volume of treated wastewater release to land must be measured and records kept of the volumes of treated wastewater released.
- C53
When circumstances prevent the release to land of treated wastewater such as during or following rain events, waters must be directed to an enclosed wet weather storage or alternative measures must be taken to store/lawfully dispose of treated wastewater.
- C54
The enclosed wet weather storage capacity, required by C53, must be a minimum of 47.5 kL.
- C55
A minimum area of 1.2 hectares of land, excluding any necessary buffer zones, must be utilised for the release to land of treated wastewater.
- C56
Treated wastewater must only be supplied to another person or organisation that has a written plan detailing how the user of the treated wastewater will comply with their general environmental duty under section 319 of the EP Act whilst using the treated wastewater.
- C57
The irrigated pasture must be harvested at least annually. Any biomass harvested/removed from plants growing on irrigated land must not be disposed of on the irrigated land.
- C58
If treated wastewater that exceeds the contaminant limits specified in Table C12 (Contaminant release limits to land) is released to land, the holder of the environmental authority must: (a) notify the administering authority via WaTERS within twenty-four (24) hours of becoming aware; (b) complete an investigation into the cause of the exceedance within ten (10) business days; and (c) take immediate action to ensure compliance with condition C45 of this environmental authority and notify the administering authority of when action has been completed.
- C59
Water Sampling Monitoring and sampling must be carried out in accordance with written procedures that address, and complies with, the requirements of the latest version of the guideline: Monitoring and Science, 2018.
- C60
The following information must be recorded in relation to all water sampling: (a) The date on which the sample was taken; (b) The time at which the sample was taken; (c) The monitoring point at which the sample was taken; and (d) The results of all monitoring.
- C61
Groundwater must be monitored: (a) at the locations defined in Table C13 (Groundwater monitoring locations and frequency); (b) at the frequencies defined in Table C13 (Groundwater monitoring locations and frequency); (c) for quality characteristics at groundwater compliance monitoring bores listed in Table
- C14
(Groundwater quality limits), and (d) for groundwater levels at monitoring locations listed in Table C13 (Groundwater monitoring locations and frequency). Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table C13 (Groundwater monitoring locations and frequency) Monitoring Hydrogeological Latitude Longitude Ground Screened Frequency (GDA2020) (GDA2020) surface interval or Quarterly Locations unit sensor depth Quarterly RL for VWPs (mAHD) (mbgl) Groundwater compliance monitoring bores 19 - 25
- GW16
Rewan Group -21.96220 148.26755 259 19 - 25
- GW19
Rewan Group -21.97262 148.27582 246 19 - 25
- MB1
Rewan Group -21.94934 148.21821 278 -21.95794 161 - 164
- MB2
Rewan Group 148.20494 264 155 -158
- MB3
Leichardt coal -21.99831 148.26696 254.35 77.5 - 80.5
- MB4
seam -22.01953 148.28787 236.63 99.5 Leichardt coal 164.5 seam -22.01204 148.27975 249.21 -22.01508 148.30459 219.68 183.5 Leichardt coal 100 seam 215 Rewan Group 235 Vibrating Wire Piezometers (water level only) Rewan Group
- GW16
6 - 8.5C 8934A 0.055D 0.004A 0.03A 0.034D 0.01D 0.001E 192A
- GW17
19110A 0.055D 0.002 A 0.1A 0.01A 0.005A 355A
- GW19
36610A 0.055D 0.019 A 1.12A 0.05A 1335A
- GW22
42510A 0.2375A 0.017A 0.8A 0.05A 0.005A 1469A MB1* 15910A 0.055D 0.54A 0.009D 0.0006D 0.132A 64A 100B 1000B N/A MB2* N/AF 18700A 0.65A* 0.013D 0.1A 0.143A 0.01D 0.001E 37.5A MB3* 6 - 8.5C 11070A 0.055D 1.65A 0.034D 27A MB4* 34680A 0.055D 1.24A 0.034D 23A Notes: * New bores will require re-calculation of site-specific values on completing 12 rounds of sampling. A 95th percentile site specific value (adjusted to meet limit of reporting where required) B Assessing Petroleum Hydrocarbon Contamination, released by the National Environmental Protection Council Assessment of Site Contamination (NEPM variation) C ANZECC Livestock Drinking Water Guidelines D ANZECC Aquatic Ecosystem toxicant default guidelines 95% Protection (fresh water) - up to LOR range where required, ie Selenium. E ANZECC Aquatic Ecosystem toxicant default guidelines 95% Protection (marine water) - up to LOR range where required, ie Silver. F No limit applied, to be reassessed following the completion of twelve (12) rounds of sampling. Bore to be replaced to screen same aquifer and within 30 metres of the location detailed in Table C13 (Groundwater monitoring locations and frequency) Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C62
Baseline groundwater monitoring The baseline groundwater monitoring program must be continued for monitoring bores MB1, MB2, MB3 and MB4 to include twelve (12) sampling events in total for the indicators defined in Table C14 (Groundwater quality limits).
- C63
Within two (2) months of completing the baseline monitoring detailed in condition C62, groundwater quality limits for bores MB1, MB2, MB3 and MB4 must be assessed using the approach set out in the latest version of the departmental guideline Using monitoring data to assess groundwater quality and potential environmental impacts and the following provided to the administering authority: (a) Proposed groundwater quality limits for bores MB1, MB2, MB3 and MB4; and (b) A report detailing the assessment, which must include: (i) data used; (ii) time-series plots; (iii) box-plots; (iv) outlier analysis; (v) trend analysis, and (vi) summarised site-specific values and statistics; and (c) All raw data.
- C64
Groundwater Quality Results of groundwater monitoring from the monitoring bores identified in Table C14 (Groundwater Quality Limits) must not be exceeded at the same monitoring bore on three (3) consecutive occasions.
- C65
If the quality limits specified in Table C14 (Groundwater Quality Limits) are exceeded at the same monitoring bore on three (3) consecutive occasions, the holder of the environmental authority must notify the administering authority via WaTERS within twenty-four (24) hours of receiving the results.
- C66
If an exceedance is detected under condition C64, an investigation must be conducted and a report provided to the administering authority within forty-eight (48) days of detecting the exceedance under condition C64. The investigation must determine if the exceedance is the result of: (a) activities conducted under this environmental authority; (b) natural variation; or (c) neighbouring land use resulting in groundwater impacts; and if the exceedance is the result of activities conducted under this environmental authority, whether environmental harm has occurred or may occur as the result of the activities.
- C67
If an investigation undertaken in accordance with condition C66 determines that environmental harm has or may occur, the holder of this environmental authority must: (a) implement immediate measures to reduce the potential for environmental harm; and (b) develop long-term mitigation measures to address any existing groundwater contamination and prevent recurrence of groundwater contamination. (c) Provide a report of the measures and long-term mitigation measures implemented to the administering authority within twenty-eight (28) days of submission of the report under condition C66.
- C68
Subject to requirements of condition C61, groundwater levels and groundwater drawdown fluctuations in excess of two (2) metres per year, not resulting from the pumping of licensed bores, must be notified within seven (7) days to the administering authority following completion of monitoring.
- C69
Groundwater Monitoring and Management Plan On or before 31 July 2022, a revised Groundwater Monitoring and Management Program must be developed, implemented and maintained. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C70
The Groundwater Monitoring and Management Program required by condition C69 must: (a) provide a hydrogeological conceptual groundwater model; (b) identify all potential sources of contamination to groundwater from the activities authorised under this environmental authority; (c) identify all environmental values that may be impacted; (d) detail groundwater levels in all identified hydrogeological units present across and adjacent to the site to confirm existing groundwater flow paths; (e) ensure all potential groundwater impacts due to mining activities and rehabilitation activities are identified, monitored and mitigated; (f) ensure adequate groundwater monitoring and data analysis is undertaken to achieve the following objectives: (i) detect any impacts to groundwater quality due to the mining activities and rehabilitation activities; (ii) detect any changes to groundwater level due to the mining activities and rehabilitation activities; (iii) determine compliance with condition C64 and condition C68 and (iv) determine trends in groundwater quality; (v) determine any interaction or impact from groundwater on surface water (groundwater monitoring locations should align with receiving environment surface water quality monitoring locations, if appropriate); (g) document groundwater management and monitoring methodologies undertaken for the duration of all mining activities and rehabilitation activities; (h) provide an appropriate quality assurance and quality control program; (i) ensure groundwater levels are measured and reported as both metres below top of casing (mbtoc) and metres above the Australian Height Datum (mAHD). (j) include a review process to identify improvements to the program that includes addressing any comments provided by the administering authority.
- C71
Annual Groundwater Monitoring Report An Annual Groundwater Monitoring Report must be completed and submitted to the administering authority by 1 April each year, for the monitoring conducted in the calendar year prior. The Annual Groundwater Monitoring Report must be completed by an appropriately qualified person.
- C72
The Annual Groundwater Monitoring Report required by condition C71 must include: (a) a review of all the groundwater quality and standing water level data of all groundwater bores listed within Table C13 (Groundwater monitoring locations and frequency); (b) details of any review undertaken of the groundwater conceptual model; (c) an assessment of any impacts on groundwater level due to the mining activities; (d) comparison with receiving environment surface water quality monitoring results to determine any interaction or impact from groundwater on surface water, and (e) the suitability of the current groundwater monitoring network to effectively detect impacts from mine related activities, including any proposed improvements to the groundwater monitoring network
- C73
Groundwater - Monitoring standards The construction, maintenance, operation and decommissioning of each groundwater monitoring bore must be undertaken in a manner that: (a) prevents contaminants entering the groundwater; (b) ensures representative groundwater samples from the target hydrogeological unit; and (c) maintains the hydrogeological environment within the hydrogeological unit. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- C74
Monitoring and sampling must be carried out in accordance with written procedures that address the requirements of the latest version of the guideline: Monitoring and Sampling 2018.
- C75
The following information must be recorded in relation to all water sampling: (a) The date on which the sample was taken; (b) The time at which the sample was taken; (c) The monitoring point at which the sample was taken; and (d) The results of all monitoring.
- C76
Groundwater - Provision of data The results and analysis of groundwater monitoring conducted under condition C61 must be submitted to the administering authority via WaTERS by 1 April each year for the monitoring conducted in the calendar the year prior. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Agency interest: Acoustic Condition Condition number
- D1
Subject to conditions D2 and D3, noise from the mining activity must not cause an environmental nuisance at any sensitive or commercial place.
- D2
When requested by the administering authority, noise monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised person) of environmental nuisance at any sensitive or commercial place, and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring.
- D3
Noise monitoring must include the following descriptors, characteristics and conditions: (a) LAeq, adj, T; (b) The level and frequency of occurrence and adjustments for impulsive or tonal noise; (c) Atmospheric conditions including wind speed, wind direction and rain; (d) Effects due to extraneous factors such as traffic noise; and (e) Location, date and time of monitoring.
- D4
Noise is not considered to be a nuisance under condition D1 if monitoring shows that noise does not exceed the following levels in the time periods specified in Table D1 (Noise Limits).
- D5
If monitoring indicated exceedance of the limits in Table D1 (Noise limits), then the environmental holder must: (a) address the complaint including the use of appropriate dispute resolution if required; and (b) immediately implement noise abatement measures so that emissions of noise from the activity do not result in further environmental nuisance.
- D6
The method of measurement and reporting of noise levels must comply with the latest edition of the administering authority's Noise Measurement Manual.
- D7
Airblast overpressure nuisance Subject to conditions D8 and D9, the airblast overpressure level from blasting operations on the premises must not exceed the limits defined in Table D2 (Airblast overpressure level) at any sensitive place. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table D1 (Noise limits) Noise level dB(A) Monday to Saturday Sundays and Public Holidays measured as 9am - 6pm - 10pm 10pm - 9am 7am - 6pm 6pm - 10pm 10pm - 7am 6pm Noise measured at a 'Noise sensitive place' LA10, adj, 10 mins B/g + 5 B/g + 5 B/g + 3 B/g + 5 B/g + 5 B/g + 0 LA1, adj, 10 mins B/g + 10 B/g + 10 B/g + 5 B/g + 10 B/g + 10 B/g + 5 Noise measured at a 'Commercial place' LA10, adj, 10 mins B/g + 10 B/g + 10 B/g + 5 B/g + 10 B/g + 10 B/g + 5 LA1, adj, 10 mins B/g + 15 B/g + 15 B/g + 10 B/g + 15 B/g + 15 B/g + 10 NOTE: `B/g' refers to Background. Table D2 (Airblast overpressure level) Location Airblast Overpressure Measured Sensitive or Air blast overpressure level of 115 dB (Linear peak) for nine (9) out of ten (10) consecutive commercial place blasts initiated and not greater than 120 dB (Linear peak) at any time.
- D8
When requested by the administering authority, airblast overpressure monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised person) of environmental nuisance at any sensitive or commercial place, and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring.
- D9
Airblast overpressure monitoring must include the following descriptors, characteristics and conditions: (a) Location of the blast(s) within the mining area (including which bench level); (b) Atmospheric conditions including temperature, relative humidity and wind speed and direction, and (c) Location, date and time of recording.
- D10
If monitoring indicates exceedance of the relevant limits in Table D2 (Airblast overpressure level), then the environmental authority holder must: (a) address the complaint including the use of appropriate dispute resolution if required; and (b) immediately implement airblast overpressure abatement measures so that airblast overpressure from the activity does not result in further environmental nuisance.
- D11
The method of measurement and reporting of airblast overpressure levels must comply with the latest edition of the administering authority's Noise Measurement Manual.
- D12
Vibration nuisance Subject to conditions D13 and D14, vibration from the mining activity must not cause an environmental nuisance at any sensitive or commercial place.
- D13
When requested by the administering authority, vibration monitoring must be undertaken within a reasonable and practicable timeframe nominated by the administering authority to investigate any complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised person) of environmental nuisance at any sensitive or commercial place, and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- D14
Vibration monitoring must include the following descriptors, characteristics and conditions: (a) Location of the blast(s) within the mining area (including which bench level); (b) Atmospheric conditions including temperature, relative humidity and wind speed and direction; and (c) Location, date and time of recording.
- D15
If monitoring indicates exceedance of the relevant limits in Table D3 (Vibration limits), then the environmental authority holder must: (a) address the complaint including the use of appropriate dispute resolution if required; and (b) immediately implement vibration abatement measures so that vibration from the activity does not result in further environmental nuisance. Table D3 (Vibration limits) Location Vibration measured Sensitive or 5 mm/s peak particle velocity for nine (9) out of ten (10) consecutive blasts and not commercial place greater than 10 mm/s peak particle velocity at any time NOTE: The method of measurement and reporting of vibration levels must comply with the latest edition of the administering authority's vibration and air blast overpressure monitoring guideline. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Agency interest: Waste Condition Condition number
- E1
A Waste Management Plan, in accordance with the waste management hierarchy of the Waste Reduction and Recycling Act 2011, must be implemented and maintained. The Waste Management Plan must include: (a) waste management practices that will ensure that recyclables are diverted from landfill; (b) procedures for identifying and implementing opportunities to improve the waste management practices employed including information and education packages for waste generators to assist in maximising the diversion of recyclable materials from landfill; (c) details of any accredited management system employed, or planned to be employed, to implement the waste management practices; (d) procedures for dealing with accidents, spills and other incidents that may impact on the waste management; (e) disposal procedures for hazardous wastes; (f) procedures for auditing waste loads to identify material to be removed for recycling; (g) how often the performance of the waste management practices will be assessed (at least annually); (h) the indicators or other criteria, taking into account economic, social and environmental factors on which the performance of the waste management practices will be assessed; (i) requirements for waste transport contractors to appropriately manage source separated recyclable materials; and (j) a staff awareness and induction program that encourages re-use and recycling.
- E2
A designated area or storage containers must be set aside for the laydown and segregation of wastes.
- E3
An effective fire break must be provided and maintained around all waste laydown areas.
- E4
Tyres stored awaiting disposal or transport for take-back and recycling or waste-to-energy options, should be stockpiled in volumes less than three (3) metres in height and two hundred square metres (200m2) in area and at least ten (10) metres from any other tyre storage area.
- E5
All reasonable and practicable fire prevention measures must be implemented, including removal of grass and other materials within a ten (10) metre radius of the scrap tyre storage area.
- E6
Waste must not be burned or allowed to be burned on the mining leases, unless for fire training purposes.
- E7
Waste batteries must be stored: (a) in a bunded and roofed area; or (b) palletised and plastic wrapped.
- E8
Each container of regulated waste must be marked to identify the waste contained therein. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- E9
Where practicable, waste tyres resulting from the mining activities can be disposed of in underground slopes provided this practice does not cause an unacceptable fire risk or compromise mine safety.
- E10
Waste tyres resulting from the mining activities disposed within the operational land must not impede saturated aquifers or compromise the stability of the consolidated landform.
- E11
Disposing of waste tyres resulting from the mining activities in spoil emplacement is acceptable, providing tyres are placed as deep in the spoil as reasonably practicable.
- E12
Except as otherwise permitted by the conditions of this environmental authority, all general and regulated waste must be removed and transported from site by a person(s) who has the authority to transport such waste to a facility that is lawfully able to accept the waste. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Agency interest: Land Condition Condition number
- F1
Topsoil Topsoil must be strategically stripped ahead of mining in accordance with a Topsoil Management Plan.
- F2
A topsoil inventory which identifies the topsoil requirements for the mine including availability of suitable topsoil on-site must be detailed in the Topsoil Management Plan.
- F3
All areas significantly disturbed by mining activities must be rehabilitated to a stable landform with a self-sustaining vegetation cover in accordance with Table F1 (Landform design), Table F2 (Final land use and rehabilitation approval schedule) and in accordance with the completion criteria outlined in Appendix 6 (Rehabilitation Completion Criteria). Disturbance Type Table F1 (Landform design) Projected surface area (ha) Spoil dump - external wall Maximum slope range (%) 11 Residual void 10-15 8 Infrastructure areas 20-215 31.5 Rail loop area 10-15 55 Dry reject disposal area (elevated) 10-15 78 10-15
- F4
Progressive rehabilitation must commence when areas become available within the operational land in accordance with the Rehabilitation Management Plan requirements outlined in condition F8.
- F5
Complete a review of the investigation into rehabilitation of disturbed areas to include the Dry Rejects Emplacement Area and submit a report to the administering authority proposing acceptance criteria to meet the outcomes in Table F1 (Landform Design) and Table F2 (Final Land Use and Rehabilitation Approval Schedule) and Appendix 6 (Rehabilitation Completion Criteria) by 20 December 2013.
- F6
Complete a review of the assessment report, to be undertaken by a Registered Professional Engineer of Queensland (RPEQ), of geotechnical issues and erosivity of the proposed final landforms, including Dry Rejects Emplacement Area and final voids, by 20 December 2013 to demonstrate long-term landform stability. Reference is to be made to the Queensland Mining Guidelines (or subsequent reprints) in making this assessment.
- F7
Residual void outcome Residual voids must comply with the following outcomes: (a) Residual voids must not cause any serious environmental harm to land, surface waters or any recognised groundwater aquifer, other than the environmental harm constituted by the existence of the residual void itself and subject of any other condition within this environmental authority; and (b) Residual voids must comply with Table F3 (Residual void design). Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table F2 (Final land use and rehabilitation approval schedule) Disturbance Type Box Cut Spoil Dump(s) Sediment/ Evaporation Infrastructure Dry Rejects Rail Loop Quarry Area Road(s), Track(s), Supply Dams Dam (CHPP, MIA, Emplacement coal quality and Power facilities, Areas compliance bores Pipelines) and gas pipelines Tenure ID Lot 1 Lot 1 SP187962 Lot 1 Lot 24 Lot 1 SP187962 Lot 1 SP192451 Lot 1 Lot 1 Lot 1 SP187962 SP187962 Lot 24 SP162593 SP187962 SP162593 Lot 24 SP162593 SP192451 SP192451 Lot 24 SP162593 Lot 1 SP192451 Lot 1 SP19245191 Lot 24 Lot 24 4.8 Lot 3 SP190266 Lot 3 SP190266 SP162593 SP162593 Grazing Lot 2 SP214498 Grazing Lot 3 SP190266 Lot 1 SP192451 Projected 25 14.2 31.5 78 55 3 110.3 surface area 8 (ha) Pre-mine land Grazing Grazing Grazing Grazing Grazing Grazing Grazing Grazing use Grazing Post-mine Water Storage Grazing Water Native Grazing Native Ongoing Access or land Storage ecosystem on ecosystem/ Grazing description batters/grazing Grazing on upper surface Post-mine land suitability V IV V V IV IV IV IV IV classification Projective 70% N/A N/A 70% 70% 70% 70% 70% cover range N/A (%) Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Table F3 (Residual void design)
- F8
The Rehabilitation Management Plan must be amended and implemented by 30 December 2013 and: (a) Provide for the effective management of actual and potential environmental impacts and for the rehabilitation of significantly disturbed land resulting from the mining activities carried out under this environmental authority; (b) Be developed in accordance with the administering authorities Guideline rehabilitation requirements for mining projects and must include at least the following components: (i) measures to ensure the rehabilitation objectives defined in Appendix 6 (Rehabilitation Completion Criteria) are met; (ii) a justification of the rehabilitation indicators defined in Appendix 6 (Rehabilitation Completion Criteria), including how the relationship between the indicator and the objective has been established; (iii) a justification that the completion criteria defined in Appendix 6 (Rehabilitation Completion Criteria), will determine if the rehabilitation objectives have been met and are suitable to ensure the post mine land use identified in Table F2 (Final land use and rehabilitation approval schedule); (iv) monitoring of reference sites identified in Table F4 (Reference Sites) inclusive of statistical design; (v) rehabilitation methods applied to each domain; (vi) landform design criteria including: (1) a justification of how landform design will be consistent with the surrounding topography; (2) schematic representation of final landform inclusive of: (3) drainage design and features; (4) slope designs; (5) cover design; and (6) erosion controls proposed on reformed land. (vii) rehabilitation monitoring and maintenance requirements to be applied to all areas of disturbance, including: (1) how the rehabilitation indicators defined in Appendix 6, are to be measured; (2) how the results of monitoring of indicators defined in Appendix 6, will be reported and interpreted; (3) how the rehabilitation completion criteria defined in Appendix 6, are to be measured; and (4) how the rehabilitation completion criteria defined in Appendix 6, will be reported and interpreted. (viii) a program for monitoring all land undergoing rehabilitation and rehabilitated areas including the verification of rehabilitation success, determined by the rehabilitation indicators and rehabilitation completion criteria defined in Appendix 6. The program must include: (1) the minimum sampling intensity must be specified for the monitoring of progressive rehabilitation; (2) a justification of the suitability of the minimum sampling intensity; Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- F9
Preventing contaminant release to land Contaminants must not be released to land in a manner which constitutes nuisance, material or serious environmental harm.
- F10
Storage and spillage of chemicals and flammable or combustible liquids All flammable or combustible liquids must be contained within an on-site containment system and controlled in a manner that prevents environmental harm and maintained in accordance with the current version of AS 1940 - Storage and handling of flammable and combustible liquids.
- F11
Spillage of all flammable and combustible liquids must be controlled in a manner that prevents environmental harm.
- F12
Infrastructure All infrastructure constructed by or for the environmental authority holder during the mining activities including water storage structures, must be removed from the site prior to environmental authority surrender, except where agreed in writing by the post mining land owner/holder.
- F13
A Dry Rejects Emplacement Area (DREA) and DREA Sediment Dam is authorised under this authority in accordance with the specifications set out in `Capital Consulting for Carborough Downs Coal Mine Dry Rejects Emplacement Area (DREA) and DREA Sediment Dam Final Design Report CO207-CDM-CI-RP-005 Rev 1, 19 March 2013' and is to be located within the control points outlined in the register of regulated dams.
- F14
The holder of this environmental authority must ensure that there is always a current operational plan for the DREA, which may form part of other plans required by legislation.
- F15
The DREA shall be designed to prevent environmental harm arising from contaminants being generated in the facility, leachate and runoff from the facility or other sources. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- F16
Mining waste management A Mining Waste Management Plan together with the certification by an appropriately qualified person must be developed and implemented by 20 December 2013. The Mining Waste Management Plan must at a minimum include: (a) characterisation programs to ensure that all mining waste is progressively characterised during disposal for net acid producing potential, salinity and the following contaminants: pH, Electrical Conductivity (EC), Acid Neutralising Capacity (ANC), Net Acid Generation (NAG) (reporting NAG capacity and NAG pH after oxidation), Net Acid Producing Potential (NAPP), Total Sulfur (S), Chromium Reducible Sulfur (SCr), Boron (B) Cadmium (Cd), Iron (Fe), Aluminium (Al), Copper (Cu), Magnesium (Mg), Manganese (Mn), Calcium (Ca), Sodium (Na), Zinc (Zn) and Sulphate (SO4); (b) characterisation programs to ensure that the physical properties of the mining waste is progressively characterised during disposal; (c) the availability or leachability of metals from the mining waste; (d) quantity of potentially acid forming (PAF) mining waste; (e) review potential impacts of PAF mining waste on the success of proposed rehabilitation methods; (f) management actions for mining waste that has been identified as having a high availability or leachability of metals; (g) management actions for mining waste that has been defined as PAF; (h) identification of environmental impacts and potential environmental impacts; (i) control measures for routine operations to minimise likelihood of environmental harm; (j) contingency plans and emergency procedures for non-routine situations; and (k) periodic review of environmental performance and continual improvement. NOTE: Individual parameters in (a) above can be removed following sufficient mine waste characterisation to demonstrate that certain individual parameters are not present in sufficient quantities to warrant further characterisation.
- F17
Acid mine drainage and leachate management Subject to the release limits defined in Agency interest C: Water, all reasonable and practicable measures must be implemented to prevent hazardous leachate being directly or indirectly released or likely to be released as a result of the activity to the environment.
- F18
Native vegetation Cleared vegetation must be managed in accordance with the following hierarchy: (a) Reuse, e.g. use of logs and tree stumps as shelter for fauna in rehabilitated areas; (b) Recycle, e.g. mulching of vegetation and use in rehabilitation; and (c) Other alternative management options implemented in a way that causes the least amount of environmental harm, e.g. carrying out burning of waste vegetation under the appropriate permits.
- F19
Areas which are to be rehabilitated to native ecosystem must comply with the following outcomes: (a) Achievement of a self-sustaining native ecosystem with species composition and distribution similar to the Brigalow 11.4.9, Poplar Box 11.5.3, and/or Lancewood 11.7.2 Regional Ecosystems reference sites as shown in Table F4 (Reference sites); and (b) All areas significantly disturbed by mining activities must be rehabilitated to the landform design criteria in Table F1 (Landform design). Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- F20
Authorised Disturbance Disturbance is permitted to be undertaken within authorised disturbance areas depicted in Appendix 4 (Authorised Surface Disturbance Areas) and Appendix 5 (Authorised Underground Working and Subsidence Disturbance Areas), in accordance with the projected surface areas detailed in Table F1 (Landform design) and Table F2 (Final land use and rehabilitation approval schedule).
- F21
The only type of mining authorised to be conducted on ML700067 is bord and pillar mining. The subsidence resulting from bord and pillar mining must not exceed 400mm within the `CAR South - Subsidence Envelope' areas as depicted in Appendix 5 (Authorised Underground Working and Subsidence Disturbance Areas) and must not exceed 50mm in all other areas authorised to be disturbed on ML700067.
- F22
Surface areas over bord and pillar mining areas of ML700067, not otherwise detailed in Table F2 (Final land use and rehabilitation approval schedule), must maintain the pre-mining grazing suitability classification.
- F23
A LiDAR survey to produce a digital elevation model (DEM) for the entirety of the areas depicted as `CAR South - Subsidence Envelope' in Appendix 5 (Authorised Underground Working and Subsidence Disturbance Areas) must be conducted prior to commencement of mining activities identified as having the potential to generate greater than 50mm of subsidence. The survey must be capable of being used as a baseline survey collected prior to the onset of subsidence to identify whether terrain changes will lead to erosion risk, changes to channel stability, and the potential hydraulic consequences of subsidence.
- F24
A Subsidence Monitoring Program must be developed, documented and certified by an appropriately qualified person, by 30 June 2026. The SMP must be capable of determining the occurrence and extent of any subsidence caused by the mining activity and compliance with condition F21.
- F25
The Subsidence Monitoring Program as per condition F24 must include: (a) annual (as a minimum) collation of ground level data to compare with baseline assessment conducted in F23; (b) identification of any additional risks to erosion, channel stability or hydraulic consequences of subsidence; (c) the monitoring methodology; and (d) proposed mitigation and/or remedial works to be undertaken if subsidence results from the mining activity.
- F26
A Subsidence Monitoring Report detailing the extent to which the environmental authority holder has complied with conditions F21 to F25 which has been certified by an appropriately qualified person, must be completed annually and submitted to the administering authority upon request. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Regional Ecosystem Table F4 (Reference sites) Longitude (GDA2020) 11.4.9 148.21392 11.5.3 Latitude (GDA2020) 148.20785 11.7.2 -21.94538 148.22317 11.5.9 / 11.5.18 -21.96022 148.23325 Grazing -21.97554 148.26982 -21.98437 -21.96792 Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Agency interest: Regulated Structures Condition Condition number
- G1
Assessment of consequence category The consequence category of any structure must be assessed by a suitably qualified and experienced person in accordance with the Manual for Assessing Consequence Categories and (a) Prior to the design and construction of the structure, if it is not an existing structure; or (b) Prior to any change in its purpose or the nature of its stored contents.
- G2
A consequence assessment report and certification must be prepared for each structure assessed and the report may include a consequence assessment for more than one structure.
- G3
Certification must be provided by the suitably qualified and experienced person who undertook the assessment, in the form set out in the Manual for Assessing Consequence Categories and
- G4
Design and construction of a regulated structure Conditions G5 to G9 inclusive do not apply to existing structures.
- G5
All regulated structures must be designed by, and constructed under the supervision of, a suitably qualified and experienced person in accordance with the requirements of the Manual for Assessing
- G6
Construction of a regulated structure is prohibited unless the holder has submitted a consequence category assessment report and certification to the administering authority which has been certified by a suitably qualified and experienced person for the design and design plan and the associated operating procedures in compliance with the relevant condition of this authority.
- G7
Certification must be provided by the suitably qualified and experienced person who oversees the preparation of the design plan in the form set out in the Manual for Assessing Consequence the Regulated Structures register.
- G8
Regulated structures must: (a) be designed and constructed in accordance with and conform to the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (b) be designed and constructed with due consideration given to ensuring that the design integrity would not be compromised on account of: (i) floodwaters from entering the regulated dam from any watercourse or drainage line; (ii) wall failure due to erosion by floodwaters arising from any watercourse or drainage line.
- G9
Certification by the suitably qualified and experienced person who supervises the construction must be submitted to the administering authority on the completion of construction of the regulated structure, and state that: (a) the 'as constructed' drawings and specifications meet the original intent of the design plan for that regulated structure; and (b) construction of the regulated structure is in accordance with the design plan. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- G10
Operation of a regulated structure Operation of a regulated structure, except for an existing structure, is prohibited unless the holder has submitted to the administering authority: (a) one paper copy and one electronic copy of the design plan and certification of the `design plan' in accordance with condition G6, (b) a set of `as constructed' drawings and specifications, (c) certification of those `as constructed drawings and specifications' in accordance with condition G6, (d) where the regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the DSA volume across the system, a copy of the certified system design plan; (e) the requirements of this authority relating to the construction of the regulated structure have been met; (f) the holder has entered the details required under this authority, into a Register of Regulated Dams; and (g) there is a current operational plan for the regulated structures.
- G11
For existing structures that are regulated structures: (a) where the existing structure that is a regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the DSA volume across the system, the holder must submit to the administering authority within twelve (12) months of the commencement of this condition a copy of the certified system design plan including that structure; and (b) there must be a current operational plan for the existing structures.
- G12
Each regulated structure must be maintained and operated, for the duration of its operational life until decommissioned and rehabilitated, in a manner that is consistent with the current operational plan and, if applicable, the current design plan and associated certified `as constructed' drawings.
- G13
Mandatory reporting level Conditions G14 to G17 inclusive only apply to Regulated Structures which have not been certified as low consequence category for `failure to contain - overtopping'.
- G14
The Mandatory Reporting Level (the MRL) must be marked on a regulated dam in such a way that during routine inspections of that dam, it is clearly observable.
- G15
The holder must, as soon as practical and within forty-eight (48) hours of becoming aware, notify the administering authority when the level of the contents of a regulated dam reaches the MRL.
- G16
The holder must, immediately on becoming aware that the MRL has been reached, act to prevent the occurrence of any unauthorised discharge from the regulated dam.
- G17
The holder must record any changes to the MRL in the Register of Regulated Structures.
- G18
Design storage allowance The holder must assess the performance of each regulated dam or linked containment system over the preceding November to May period based on actual observations of the available storage in each regulated dam or linked containment system taken prior to 1 July of each year.
- G19
By 1 November of each year, storage capacity must be available in each regulated dam (or network of linked containment systems with a shared DSA volume), to meet the Design Storage Allowance (DSA) volume for the dam (or network of linked containment systems).
- G20
The holder must, as soon as possible and within forty-eight (48) hours of becoming aware that the regulated dam (or network of linked containment systems) will not have the available storage to meet the DSA volume on 1 November of any year, notify the administering authority. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- G21
The holder must, immediately on becoming aware that a regulated dam (or network of linked containment systems) will not have the available storage to meet the DSA volume on 1 November of any year, act to prevent the occurrence of any unauthorised discharge from the regulated dam or linked containment systems.
- G22
Annual inspection report Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.
- G23
At each annual inspection, the condition and adequacy of all components of the regulated structure must be assessed and a suitably qualified and experienced person must prepare an annual inspection report containing details of the assessment and include recommended actions to ensure the integrity of the regulated structure or a positive statement that no recommendations are required.
- G24
The suitably qualified and experienced person who prepared the annual inspection report must certify the report in accordance with the Manual for Assessing Consequence Categories and
- G25
The holder must within twenty (20) business days of receipt of the annual inspection report, provide to the administering authority: (a) the recommendations section of the annual inspection report; (b) if applicable, any actions being taken in response to those recommendations; and (c) if, following receipt of the recommendations and (if applicable) actions, the administering authority requests a full copy of the annual inspection report from the holder, provide this to the administering authority within ten (10) business days of receipt of the request.
- G26
Transfer arrangements The holder must provide a copy of any reports, documentation and certifications prepared under this authority, including but not limited to any Register of Regulated Structures, consequence assessment, design plan and other supporting documentation, to a new holder on transfer of this authority.
- G27
Register of Regulated Dams A Register of Regulated Dams must be established and maintained by the holder for each regulated dam.
- G28
The holder must provisionally enter the required information in the Register of Regulated Dams when a design plan for a regulated dam is submitted to the administering authority.
- G29
The holder must make a final entry of the required information in the Register of Regulated Dams once compliance with conditions G10 and G11 has been achieved.
- G30
The holder must ensure that the information contained in the Register of Regulated Dams is current and complete on any given day.
- G31
All entries in the Register of Regulated Dams must be approved by the chief executive officer for the holder of this authority, or their delegate, as being accurate and correct.
- G32
The holder must, at the same time as providing the annual return, supply to the administering authority a copy of the records contained in the Register of Regulated Dams, in the electronic format required by the administering authority.
- G33
Transitional arrangements All existing structures that have not been assessed in accordance with either the Manual or the former Manual for Assessing Hazard Categories and Hydraulic Performance of Dams must be assessed and certified in accordance with the Manual within six (6) months of amendment of the authority adopting this schedule. Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine
- G34
All existing structures must subsequently comply with the timetable for any further assessments in accordance with the Manual specified in Table G1 (Transitional hydraulic performance requirements for existing structures), depending on the consequence category for each existing structure assessed in the most recent previous certification for that structure.
- G35
Table G1 (Transitional hydraulic performance requirements for existing structures) ceases to apply for a structure once any of the following events has occurred: (a) It has been brought into compliance with the hydraulic performance criteria applicable to the structure under the Manual; (b) It has been decommissioned; or (c) It has been certified as no longer being assessed as a regulated structure.
- G36
Certification of the transitional assessment required by condition G33 and G34 (as applicable) must be provided to the administering authority within six (6) months of amendment of the authority adopting this schedule. Table G1 - (Transitional hydraulic performance requirements for existing structures) Compliance with High Significant Low criteria No transition required >90% and a history No transition required No transitional of good compliance conditions apply. performance in last Within 10 years, unless Review consequence 5 years otherwise agreed with the assessment every 7 administering authority, years. >70%-90% Within 7 years, unless based on no history of No transitional 50-70% otherwise agreed with the unauthorised releases. conditions apply. 50% administering authority, Within 7 years unless Review consequence based on no history of otherwise agreed with the assessment every 7 unauthorised releases. administering authority, years. based on no history of Review consequence Within 5 years unless unauthorised releases. assessment every 7 otherwise agreed with the Within 5 years or as per years. administering authority, compliance requirements based on no history of (e.g. TEP timing) Review consequence unauthorised releases. assessment every 5 years. Within 5 years or as per compliance requirements (e.g. TEP timing) END OF CONDITIONS Permit Environmental Authority EPML00959213 Carborough Downs Coal Mine Definitions Key terms and/or phrases used in this document are defined in this section. Where a term is not defined, the definition in the Environmental Protection Act 1994, its regulations or environmental protection policies must be used. If a word remains undefined it has its ordinary meaning. `acid rock drainage' means any contaminated discharge emanating from a mining activity formed through a series of chemical and biological reactions when geological strata is disturbed and exposed to oxygen and moisture. Administering Authority is the agency that administers the environmental authority provisions under the Environmental Protection Act 1994. `airblast overpressure' means energy transmitted from the blast site within the atmosphere in the form of pressure waves. The maximum excess pressure in this wave, above ambient pressure is the peak airblast overpressure measured in decibels linear (dBL). `appropriately qualified person' means a person who has professional qualifications, training, skills or experience relevant to the nominated subject matter and can give authoritative assessment, advice and analysis on performance relating to the subject matter using the relevant protocols, standards, methods or literature. `background', with reference to the water schedule means the average of samples taken prior to the commencement of mining from the same waterway that the current sample has been taken. `blasting' means the use of explosive materials to fracture:
- GS2
GW19 GW16 APPENDIX 1 MP12
- GW22
ML 70340 TREATED EFFLUENT
- MP29
IRRIGATION AREA RP4 Legend 757 0000 757 0000 Mining Lease Monitoring Site Effluent Irrigation Area Groundwater Receiving Water Receiving Water Flow Release Point Water Storage Monitoring
- MP26
ML 70339 GW17 VWP1 ML 700047 RP2 MP11 ML 700046 RP1 Effluent Irrigation Area ML 70375 MB1 ML 70482 ML 70401 ML 700067 VWP2 756 5000 MB3 756 5000 0 0.5 1 1.5 ML 70313 ML 70457 MB4 Kilometres ML 70484 1:40,000 at A3 Datum: Australian 1984 Coordinate System: AGD 1984 AMG Zone 55 MB2 62 5000 ML 70485 Drawn By: RussellAspland Date: 24/02/2026 630000ML 70312 CARBOROUGH DOWNS COAL MINE - APPENDIX 2 RECEIVING ENVIRONMENT MONITORING POINTS & GAUGING STATIONS 0 60 120 240 360 480 Kilometers YXGauging Station XYReceiving Waters - Upstream Background Monitoring Points Drawn By: SBereyne Date: 27/02/2023 YXReceiving Waters - Downstream Background Monitoring Points
- MB1
VWP1 ! ! Legend ! ! MB3 VWP2 MB4 Name
- MB2
! ! Leichardt ! Rewan ! ! Vibrating Wire Watercourse - Billy's Gully Surface Drainage CARBOROUGH DOWNS COAL MINE - APPENDIX 3 COMBINED GROUNDWATER MONITORING NETWORK 0 0.45 0.9 1.8 2.7 3.6 Km Datum: Australian 1984 Coordinate System: AGD 1984 AMG Zone 55 Drawn By: SBereyne Date: 23/05/2022 62 5000 63 0000 757 5000 757 5000 ML 70340 ML 70374 757 0000 Carborough 757 0000 Downs ML 70339 756 5000 ML 70375 Carborough 756 5000 ML 70482 Downs South ML 700067 Mavis Downs ML 70484 Millennium Poitrel Daunia 62 5000 63 0000 CARBOROUGH DOWNS COAL MINE Authorised Surface Disturbance Areas 0 500 1000 1500 2000 2500 LEGEND Appendix 4 Mining Lease Datum: Metres CAR - Authorised Disturbance - Surface Areas (including Surface Workings) Scale: GDA2020 Zone 55 CAR South - Authorised Disturbance - Surface Area (including Surface Workings 19.3ha) Date: See Scale Bar (A4) Drawn: 11/09/2025 6:31 AM RA DISCLAIMER: Third party data sources are used in this map compilation. Minserve makes no warranty regarding this data's accuracy or currency. 62 5000 63 0000 757 5000 757 5000 ML 70340 ML 70374 757 0000 Carborough 757 0000 Downs ML 70339