Data as at 14 September 2026 · from the Queensland EP Act public register
EPML00941713 · TNC MINING PTY LTD
Minerals environmental authority EPML00941713 (TNC MINING PTY LTD), Granted. 128 conditions indexed. No PRC plan.
- Status
- Granted
- Holders
- TNC MINING PTY LTD
- Tenures
- ML100077; ML2695; ML90236
- PRC plan
- None
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
128 numbered conditions read from the current instrument. Page numbers link into the register PDF.
- A1
This environmental authority authorises environmental harm referred to in the conditions. Where there is no condition or this environmental authority is silent on a matter, the lack of a condition or silence does not authorise environmental harm.
- A2
Contaminants must not be released to the receiving environment, unless permitted under the conditions of this environmental authority.
- A3
The environmental authority holder must ensure that the activity is carried out in accordance with Table A1. Table A1 - Authorised Activities and Locations (`Table A1') Mine Domain1 Mine Feature Name Location Maximum (MGA94, Zone 54) Disturbance Area Central Peg Coordinates (Hectares) ML90236 and ML2695 6 Mining Area Open Pit 474600 7696000 12.6 1.36 Waste Waste Rock Dump 474100 7696200 1.18 0.4 Processing ROM Pad 474300 7696300 0.85 1.6 Water Dam 474400 7696100 3.8 Infrastructure Basin 474120 7695910 Drains 474400 7696150 5 15 Stockpiles Topsoil 474600 7696220 11.5 Ancillary Compound (Workshop / Laydown) 474600 7696350 14 Infrastructure Roads 474250 7695950 15.6 Exploration Exploration 475500 7696900 13.5 ML100077 21.7 5 Mining Area Open Pits 474630 7694445 3 0.7 Waste Waste Rock Dump 475000 7694250 ROM and Crusher 474720 7693750 Processing Workshop, Offices, Irrigation Area, 474450 7693530 and Laydown 474860 7693300 Heap Leach Pad Processing and Stormwater Ponds 474500 7693900 Infrastructure Levees 474500 7694500 Permit OFFICIAL Environmental Authority EPML00941713 Drains Refer to Figure 2 Project Infrastructure and 6.5 Layout - ML100077 Stockpiles Topsoil stockpiles 475158 7693704 10 Internal Roads Refer to Figure 2 Project Infrastructure and 8.6 Layout - ML100077
- A4
The holder of this environmental authority must: a) Install all measures, plant, and equipment necessary to ensure compliance with the conditions of this environmental authority. b) Maintain such measures, plant, and equipment in proper and efficient condition. c) Operate such measures, plant, and equipment in a proper and efficient manner. d) Ensure all instruments and devices used for the measurement or monitoring of any parameter under any condition of this environmental authority are properly calibrated. Monitoring
- A5
All monitoring, records and reports required by this environmental authority or related to environmental management of the activities must be: a) Carried out by an appropriately qualified person, periodically reviewed, and updated as required to reflect operational or environmental changes. b) Kept for a period of not less than five years; c) Provided to the administering authority in the specified format within 10 business days of a request: and d) Undertaken in accordance with the most recent version of any applicable standard or guideline for the activity.
- A6
The following information must be recorded in relation to all monitoring required under a condition of this environmental authority: a) The date and time when the sample was taken; b) The location where the sample was taken; and c) Any other pertinent details of relevance to interpreting the sampling results (i.e., stream flow, wind conditions or any unusual observations such as odour or colouration).
- A7
The environmental authority holder must implement all reasonable measures necessary to conduct monitoring required under a condition of this environmental authority. Permit OFFICIAL Environmental Authority EPML00941713 Risk Management
- A8
The holder of this environmental authority must develop and implement a risk management system for mining activities which mirrors the content requirement of the Standard for Risk Management (ISO31000:2009), or the latest edition of an Australian standard for risk management, to the extent relevant to environmental management, by 29 September 2017. Notification of emergencies, incidents, and exceptions
- A9
The environmental authority holder must notify the administering authority within 24 hours of becoming aware of any emergency, incident, sample result or event which does or may contravene a condition of this environmental authority.
- A10
Within 10 business days following the initial notification of an emergency, event or incident, or receipt of monitoring results, whichever is the latter, further written advice must be provided to the administering authority, including the following: a) Results and interpretation of any samples taken and analysed b) Outcomes of actions taken at the time to prevent or minimise unlawful environmental harm c) Proposed actions to prevent a recurrence of the emergency or incident. Complaints
- A11
The holder of this environmental authority must record all environmental complaints received about the mining activities including: a) Name, address and contact number for of the complainant b) Time and date of complaint c) Reasons for the complaint d) Investigations undertaken e) Conclusions formed f) Actions taken to resolve the complaint g) Any abatement measures implemented h) Person responsible for resolving the complaint.
- A12
The holder of this environmental authority must, when requested by the administering authority, undertake relevant specified monitoring within a reasonable timeframe nominated or agreed to by the administering authority. The results of the investigation (including an analysis and interpretation of the monitoring results) and abatement measures, where implemented, must be provided to the administering authority within 10 business days of completion of the investigation, or no later than 10 business days after the end of the timeframe nominated by the administering authority to undertake the investigation. Third-party reporting
- A13
The holder of this environmental authority must: a) By 29 June 2018, obtain from an appropriately qualified person a report on compliance with the conditions of this environmental authority b) Obtain further such reports at regular intervals, not exceeding three-yearly intervals, from the completion of the report referred to above c) Provide each report to the administering authority within 90 days of its completion.
- A14
Where a condition of this environmental authority requires compliance with a relevant standard, policy or guideline published externally to this environmental authority and the standard is amended or changed subsequent to the issue of this environmental authority, the holder of this environmental authority must: a) Comply with the amended or changed standard, policy, or guideline within two years of the amendment or change being made, unless a different period is specified in the amended standard or relevant legislation, or where the amendment or change relates specifically to regulated structures referred to in condition H1, the time specified in that condition. Permit OFFICIAL Environmental Authority EPML00941713 b) Until compliance with the amended or changed standard, policy or guideline is achieved, continue to remain in compliance with the corresponding provision that was current immediately prior to the relevant amendment or change. Exploration
- A15
All exploration activities carried out on the mining leases must comply with each of the Standard Environmental Conditions contained in the most recent version of the Eligibility criteria and standard conditions for exploration and mineral development projects. To the extent that any Standard Environmental Condition is inconsistent with a provision of this authority, the provision of this authority will prevail.
- A16
Notwithstanding Standard Condition A13 of the Eligibility criteria and standard conditions for exploration and mineral development projects, the holder of the environmental authority is authorised to carry out exploration activities up to 5 metres from the boundary of the category B environmentally sensitive areas (ESAs) identified as endangered regional ecosystems, provided that no environmental harm occurs within the ESA. END OF CONDITIONS FOR SCHEDULE A Permit OFFICIAL Environmental Authority EPML00941713 Schedule B - Air Dust and Particulate Matter Monitoring
- B1
The release of noxious or offensive odour, dust or any other airborne contaminant resulting from the activities must not cause environmental harm.
- B2
The holder of this environmental authority must implement and maintain dust control procedures that incorporate a program for the management of dust resulting from the mining activities.
- B3
The environmental authority holder shall ensure that avoidance and mitigation measures are employed so that the dust and particulate matter emissions generated by the activities do not cause exceedances of the following levels when measured at any sensitive or commercial place: a) Dust deposition of 120 milligrams per square metre per day, averaged over one month, when monitored in accordance with the most recent version of Australian Standard AS3580.10.1 Methods for sampling and analysis of ambient air--Determination of particulate matter-- Deposited matter - Gravimetric method. b) A concentration of particulate matter with an aerodynamic diameter of less than 10 micrometres (PM10) suspended in the atmosphere of 50 micrograms per cubic metre over a 24-hour averaging time, for no more than five exceedances recorded each year, when monitored in accordance with the most recent version of either: 1. Australian Standard AS3580.9.6 Methods for sampling and analysis of ambient air-- Determination of suspended particulate matter--PM10 high volume sampler with size- selective inlet - Gravimetric method, or 2. Australian Standard AS3580.9.9 Methods for sampling and analysis of ambient air-- Determination of suspended particulate matter--PM10 low volume sampler--Gravimetric method. c) A concentration of particulate matter with an aerodynamic diameter of less than 2.5 micrometres (PM2.5) suspended in the atmosphere of 25 micrograms per cubic metre over a 24-hour averaging time, when monitored in accordance with the most recent version of AS/NZS3580.9.10 Methods for sampling and analysis of ambient air--Determination of suspended particulate matter--PM (sub)2.5(/sub) low volume sampler--Gravimetric method. d) A concentration of particulate matter suspended in the atmosphere of 90 micrograms per cubic metre over a 1-year averaging time, when monitored in accordance with the most recent version of AS/NZS3580.9.3:2003 Methods for sampling and analysis of ambient air--Determination of suspended particulate matter--Total suspended particulate matter (TSP)--High volume sampler gravimetric method.
- B4
If monitoring indicates the levels in condition B3 have been exceeded, the holder of this environmental authority must promptly implement dust abatement measures so that emissions of dust generated by the mining activities cease to exceed the levels in condition B3. Transportation
- B5
The holder of this environmental authority must ensure that vehicles used for transporting bulk materials from mining lease(s), leave the mining lease(s) with appropriate load preparation to prevent the spillage and/or loss of particulate matter and/or windblown dust during transport. END OF CONDITIONS FOR SCHEDULE B Permit OFFICIAL Environmental Authority EPML00941713 Schedule C - Waste Management Waste Management
- C1
All waste generated must be disposed of in a lawful manner at an off-site facility, except for waste rock and tailings, which must be characterised, handled, and disposed of in accordance with condition C3.
- C2
The only waste authorised to be burnt on site is non-plastic packaging boxes from explosives and sodium cyanide, so long as the burning does not cause environmental harm.
- C3
All waste rock and tailings must be: a) Characterised and disposed of in a manner that minimises the potential generation and/or release of contaminants to the receiving environment; b) Where the characteristics of waste rock in regard to acid producing potential, or saline or neutral mine drainage potential is uncertain, this material must be treated as potentially acid forming, or saline or neutral mine drainage forming until demonstrated otherwise; and c) Details pertaining to meeting the requirements of this condition must be recorded and retained until this environmental authority is surrendered.
- C4
A Waste Rock Management Plan must be developed, implemented, and include where relevant, at least: a) Effective characterisation of the waste rock and spoil to predict under the proposed placement and disposal strategy the quality of runoff and seepage generated concerning potentially environmentally significant effects including salinity, acidity, alkalinity and dissolved metals, metalloids, and non-metallic inorganic substances. b) A program of progressive sampling and characterization to identify dispersive and non-dispersive spoil and salinity, acid, and alkali producing potential and metals concentrations of waste rock. c) A material balance and disposal plan demonstrating how potentially acid forming and acid forming waste rock will be selectively placed and/or encapsulated to minimise potential generation of acid mine drainage. d) Where relevant, a sampling program to verify encapsulation and/or placement of potentially acid forming and acid forming waste rock. e) How often the performance of the plan will be assessed f) The indicators or other criteria of which the performance of the plan will be assessed g) Rehabilitation strategy. END OF CONDITIONS FOR SCHEDULE C Permit OFFICIAL Environmental Authority EPML00941713 Schedule D - Acoustic
- D1
The holder of this environmental authority must ensure that noise generated by the mining activities does not cause the criteria in Table D1 to be exceeded at a sensitive place. Table D1 - Noise Limits (`Table D1') Sensitive place Noise Level d(B)A Monday to Saturday Sundays and public holidays measured as: 7am to 6pm to 10pm 10pm to 7am 9am to 6pm to 10pm 10pm to 9am 6pm 6pm LAeq, adj, 15 mins 35 35 30 35 35 30 LA1, adj, 15 mins 40 40 35 40 40 35 Air blast Overpressure Nuisance
- D2
The holder of this environmental authority must ensure that blasting does not cause the limits for peak particle velocity and air blast overpressure in Table D2 to be exceeded at a sensitive place. Table D2 - Blasting Noise Limits (`Table D2') Sensitive place blasting noise limits Blasting Noise 6pm to 7am Limits 7am to 6pm Air blast 115 dB (Linear) Peak for 9 out of 10 consecutive No Blasting overpressure blasts initiated and not greater than 120 dB (linear) Peak at any time. Ground Vibration Peak particle 5mm/second peak particle velocity for 9 out of 10 No Blasting velocity consecutive blasts and not greater than 10mm/second peak particle velocity at any time. Monitoring and Reporting
- D3
Noise monitoring and recording must include the following descriptor characteristics and matters: a) LAN, T (where N equals the statistical levels of 1, 10 and 90 and T = 15 mins) b) Background noise LA90 c) The level and frequency of occurrence of impulsive or tonal noise and any adjustment and penalties to statistical levels d) Atmospheric conditions including temperature, relative humidity and wind speed and directions e) Effects due to any extraneous factors such as traffic noise f) Location, date, and time of monitoring g) If a complaint made under A13 concerns low frequency noise, Max LpLIN, T and one third octave band measurements in dB (LIN) for centre frequencies in the 10 - 200 Hz range.
- D4
The holder of this environmental authority must develop and implement a noise monitoring program to monitor compliance with Table D1 and Table D2 by 1 February 2020. END OF CONDITIONS FOR SCHEDULE D Permit OFFICIAL Environmental Authority EPML00941713 Schedule E - Water Contaminant Release
- E1
Contaminants must not be released to any waters, unless permitted under the conditions of this environmental authority.
- E2
The release of contaminants to waters must only take place in accordance with the criteria for discharge specified in Table E2 and from a release point(s) specified in Table E1.
- E3
During the release of contaminants to waters from release point(s) specified in Table E1, the environmental authority holder must measure and record the volume of: a) The contaminant release in cubic metres per second (m3/sec) at the release point; and b) Receiving waters background flow at the frequency and location/s specified in Table E2. Table E1 - Authorised contaminant release point (`Table E1') Release Location Release source Monitoring point Receiving waters description Point (RP) (GDA94 - Zone 54) Easting Northing
- E4
The release of contaminants to waters in accordance with condition E2 from release point(s) specified in Table E1 must not exceed any contaminant release limits specified in Table E3.
- E5
The release of contaminants to waters from release point(s) must be monitored at the locations specified in Table E1 for each contaminant and at the frequency specified in Table E3.
- E6
Releases to waters must be undertaken to not cause erosion of the bed and banks of the receiving waters or cause a material build-up of sediment in such waters. Permit OFFICIAL Environmental Authority EPML00941713 Table E3 - Contaminant release limits (`Table E3') Contaminant (mg/L unless Release Limits Monitoring Frequency specified otherwise)1 Electrical conductivity (-S/cm) 1500 or 20 x 80th percentile of applicable reference Daily during release (the pH (pH Unit) value site value, whichever is higher. first sample must be Turbidity (NTU) taken within 2 hours of Sulphate as SO42- 6.0 or 20th percentile of applicable reference site commencement of Aluminium value, whichever is lower. release) Arsenic (AsV) 7.5 or 80th percentile of applicable reference site value, whichever is higher. Boron 20 x 80th percentile of applicable reference site Cadmium value. Cobalt Copper 20 x 80th percentile of applicable reference site concentration3 Lead 1.12 or Manganese 20 x 80th percentile of applicable reference site concentration3 whichever is higher Nickel 0.262 or Zinc 20 x 80th percentile of applicable reference site Cyanide (free) (as un-ionised HCN; concentration3 whichever is higher measured as (CN)) 7.42 or Cyanide (total) 20 x 80th percentile of applicable reference site Notes: concentration3 whichever is higher 0.042 or 20 x 80th percentile of applicable reference site concentration3 whichever is higher 20 x 80th percentile of applicable reference site concentration3 0.0282 or 20 x 80th percentile of applicable reference site concentration3 whichever is higher 0.0682 or 20 x 80th percentile of applicable reference site concentration3 whichever is higher 382 or 20 x 80th percentile of applicable reference site concentration3 whichever is higher 0.222 or 20 x 80th percentile of applicable reference site concentration3 whichever is higher
- E7
The environmental authority holder must notify the administering authority as soon as practicable and no later than 24 hours after commencing a release of contaminated water to the receiving environment. Notification must include the submission of written advice to the administering authority of the following information: a) Release commencement date/time. b) Details regarding the compliance of the release with the conditions of Department Interest: Water of this environmental authority (that is, contaminant limits, natural flow, discharge volume). c) Release point/s. d) Release rate. e) Release salinity. f) Receiving water/s including the natural flow rate.
- E8
The environmental authority holder must notify the administering authority: a) As soon as practicable, however b) No later than 24hours after cessation of a release event notified under Condition E7 provide the following information in writing within 28 days of the cessation of a release event under Condition E7: (i) Release cessation date/time; (ii) Natural flow rate in receiving water; (iii) Volume of water released; (iv) Details regarding the compliance of the release with the conditions of Department Interest; (v) Water of this environmental authority (i.e., contaminant limits, natural flow, discharge volume); (vi) All in-situ water quality monitoring results; (vii) Any other matters pertinent to the water release event. Note: Successive or intermittent releases occurring within 24 hours of the cessation of any individual release can be considered part of a single release event and do not require individual notification for the purpose of compliance with conditions E7 and E8, provided the relevant details of the release are included within the notification provided in accordance with conditions E7 and E8. Notification of Release Event Exceedance
- E9
The environmental authority holder must, within 28 days of a release that is not compliant with the conditions of this environmental authority, provide a report to the administering authority detailing: a) The reason for the release. b) The location of the release. c) The total volume of the release and which (if any) part of this volume was non-compliant. d) The total duration of the release and which (if any) part of this period was non-compliant. e) All water quality monitoring results (including all laboratory analyses). f) Identification of any environmental harm as a result of the non-compliance. g) All calculations. h) Any other matters pertinent to the water release event. Permit OFFICIAL Environmental Authority EPML00941713 Surface waters and sediments
- E10
The quality of receiving waters and sediment must be monitored at the monitoring sites specified in Table E4.
- E11
The quality of receiving waters and sediment must be monitored for the contaminants and at the frequencies stated in Table E5 and Table E6.
- E12
The contaminant concentrations measured in receiving waters must not exceed any water quality objective specified in Table E5. Table E4 - Receiving waters and sediment reference and compliance monitoring sites (`Table E4') Monitoring Location (GDA94 - Zone 54) sites* Monitoring site description and purpose Easting Northing Reference sites1 Wallace North (ML90236) WNSW7 Tributary that joins Elder Creek 900 m upstream of RP1 473729 7696551 WNSW8 Intersection of Toole and Elder Creek 700 m upstream of RP1 473782 7695570 Wallace South (ML100077) WSSW1 Drainage feature of Weatherly creek western boundary of lease 473817 7693874 1100 m upstream of RP3 WSSW5 Drainage feature of Weatherly creek near southern boundary of 475831 7692828 lease Compliance sites Wallace North (ML90236) WNSW3 Elder Creek 400 metres upstream, west of RP1/RP2 474257 7695634 WNSW4 Elder Creek 650 metres upstream, west of RP1/RP2 474032 7695625 WNSW0 Elder Creek 1,500 metres downstream of RP1/RP2 475895 7696549 WNSW1 Elder Creek 200 metres downstream of RP1/RP2 474824 7695955 WNSW5 Elder Creek /-- GREATER THAN --/ 3,000 metres downstream 478531 7698114 of RP1/RP2 Wallace South (ML100077) WSSW2 Drainage feature of Weatherly Creek 500 metres downstream 475286 7694851 of RP3 WSSW3 Drainage feature of Weatherly Creek 1500 metres downstream 476124 7695167 of RP3 WSSW4 Drainage feature of Weatherly Creek 3 kilometres downstream 478932 7696986 of RP3 Notes: * Monitoring locations depicted in Schedule J, Figure 3 Surface Waters and Groundwater Monitoring Locations 1. Reference sites must: (a) be from the same bio-geographic and climatic region; and
- E13
The contaminant concentrations of sediments measured at the monitoring sites specified in Table E4 must not exceed any sediment quality objective specified in Table E6. Permit OFFICIAL Environmental Authority EPML00941713 Table E6 - Sediment trigger levels (`Table E6') Contaminant1 Trigger levels (mg/kg)3 Sediment quality (mg/kg)1, 2 Monitoring Frequency Sediment quality objectives (mg/kg)4 Aluminium 80th percentile of applicable reference 2 x 80th percentile of applicable site concentration reference site concentration Arsenic 20 or 80th percentile of applicable 70 or 2 x 80th percentile of applicable reference site concentration, whichever reference site concentration, whichever is higher is higher Boron 80th percentile of applicable reference 2 x 80th percentile of applicable site concentration reference site concentration Cadmium 1.5 or 80th percentile of applicable 10 or 2 x 80th percentile of applicable reference site concentration, whichever reference site concentration, whichever is higher is higher Cobalt 80th percentile of applicable reference 2 x 80th percentile of applicable site concentration reference site concentration Copper 65 or 80th percentile of applicable 270 or 2 x 80th percentile of applicable Twice a year Lead reference site concentration, whichever reference site concentration, (once at the end whichever is higher Manganese is higher of the wet 220 or 2 x 80th percentile of applicable season and 50 or 80th percentile of applicable reference site concentration, once at the end reference site concentration, whichever whichever is higher of the dry is higher 2 x 80th percentile of applicable season) reference site concentration 80th percentile of applicable reference site concentration Mercury 0.15 1 Nickel 21 or 80th percentile of applicable 52 or 2 x 80th percentile of applicable reference site concentration, whichever reference site concentration, whichever is higher is higher 200 or 80th percentile of applicable 410 or 2 x 80th percentile of applicable Zinc reference site concentration, whichever reference site concentration, is higher whichever is higher Notes:
- E14
If a contaminant concentration measured at a compliance site specified in Table E4 exceeds any trigger level specified in Table E6 during a monitoring event required under condition E10 and E11, the environmental authority holder must compare this result to the applicable reference site and: a) If the contaminant concentration measured at the compliance site is equal to or less than the contaminant concentration measured at the applicable reference site, no further action is required; or b) If the contaminant concentration measured at the compliance site is greater than the contaminant concentration measured at the applicable reference site complete an investigation into the potential for environmental harm and provide a written report to the administering authority in accordance with condition A12, outlining i. details of the investigations carried out ii. actions taken to prevent environmental harm. Note: Where a contaminant trigger level exceedance has occurred and is under investigation in accordance with E14, no further reporting is required for subsequent exceedance events of that contaminant during the course of the investigation. Groundwater
- E15
The holder of this environmental authority must not release contaminants to groundwater.
- E16
The extraction of groundwater must not cause environmental harm to any groundwater dependant ecosystems.
- E17
Groundwater quality and standing water levels must be monitored: a) At the locations specified in Table E7; and b) At the frequencies specified in Table E7; and c) For the quality characteristics identified in Table E7. Table E7 - Groundwater Monitoring Locations and Frequency (`Table E7') Decimal Degree Screened Monitoring Frequency interval Monitoring (GDA94) Zone 54 Surface Depth RL1 RL1 (m) Point* RL1 (m) (m) Groundwater Easting Northing SWL quality Wallace North (ML90236) WNWMB01 473994 7696155 189.16 153.16 165.16 - Monthly2 Quarterly2 153.16 WNWMB02 474739 76950686 188.99 152.99 Monthly2 Quarterly2 164.99 - WNWMB03 474698 7696128 186.49 150.40 152.99 Monthly2 Quarterly2 WNWMB04 TBD3 TBD3 TBD3 TBD3 162.49 - Monthly2 Quarterly2 WEWMB01 476778 7696128 190.58 108.58 150.49 Monthly2 Quarterly2 TBD3 160.58 - 109.58 Wallace South (ML100077) Permit OFFICIAL Environmental Authority EPML00941713 WSWMB05 475411 7693024 193.90 111.9 172.9 - monthly Quarterly 111.9 WSWMB01 474433 7695041 196.78 114.78 144.78 - monthly Quarterly 114.78 WSWMB02 474206 7694144 190.69 108.69 162.69 - monthly Quarterly 108.69 WSWMB03 475080 7694450 194.45 112.45 172.45 - monthly Quarterly 112.45 WSWMB04 475764 7694862 185.87 103.87 149.87 - monthly Quarterly 103.87 Notes: * Monitoring locations depicted in Schedule J, Figure 3 Surface Waters and Groundwater Monitoring Locations 1. RL measurement to be taken from top of bore casing to the nearest 5 centimetres 2. Monitoring may be conducted 6 monthly until commencement of construction of the Wallace North Pit. 3. To be provided to the administering authority 3 months prior to the activity being carried out at Wallace North (ML90236). Table E8 - Groundwater Quality Limits (`Table E8') Limit A2 Limit B3 Contaminant1 Units Limit type Bores(s)
- E18
Groundwater measured from any compliance bore specified in Table E7 must not exceed the corresponding Limit A specified in Table E8 on any five consecutive sampling occasions.
- E19
Groundwater measured from any compliance bore specified in Table E7 must not exceed the corresponding Limit B specified in Table E8 on any three consecutive sampling occasions.
- E20
If groundwater measured from any compliance bore specified in Table E7 exceeds the corresponding Limit B specified in Table E8 on any one sampling occasion the environmental authority holder must resample the groundwater within the compliance bore for all exceeding parameters within ten business days of receipt of results. Permit OFFICIAL Environmental Authority EPML00941713 Shallow Groundwater Monitoring
- E21
The contaminant concentrations measured at any compliance bore specified in Table E9 must not exceed any of the water quality objectives specified in Table E10. Table E9 - Shallow Groundwater Monitoring Locations and Frequency (`Table E9') Decimal Degree Screened interval RL1 Monitoring Point (GDA94) Zone 54 Surface Depth RL1 (m) Monitoring
- E22
If a contaminant concentration of groundwater measured at a compliance bore specified in Table E9 exceeds any limits specified in Table E10, the holder of this environmental authority must compare this result to the applicable reference bore and: Permit OFFICIAL Environmental Authority EPML00941713 a) If the contaminant concentration measured at the compliance bore is equal to or less than the contaminant concentration measured from the applicable reference site, no further action is required; or b) If the contaminant concentration measured at the compliance bore is greater than the contaminant concentration measured at the applicable reference bore complete an investigation into the potential for environmental harm and provide a written report to the administering authority in accordance with condition A12, outlining i. details of the investigations carried out ii. actions taken to prevent environmental harm. Leak Detection Exceedance Investigation
- E23
If the concentration of a contaminant measured in groundwater at a leak detection bore specified in Table
- E9
exceeds any trigger level specified in Table E10 the holder of this environmental authority must: a) notify the administering authority within 24 hours; and b) determine the cause of the exceedance; and c) if the exceedance is due to the mining activities, take immediate action to prevent environmental harm. Bore construction and maintenance and decommissioning
- E24
The construction, maintenance and decommissioning of groundwater monitoring bores must be undertaken in a manner that: a) prevents contaminants entering the groundwater; and b) ensures the integrity of the bores to obtain representative groundwater samples from the target aquifer; and c) maintains the hydrogeological environment within the aquifer.
- E25
A bore drill log must be kept for each reference, compliance and observation groundwater monitoring bore which includes: a) bore identification reference and geographic coordinate location; b) specific construction information including but not limited to depth of bore, depth and length of casing, depth and length of screening and bore sealing details; c) standing groundwater level and water quality parameters including physical parameters and results of laboratory analysis for the possible trigger parameters; d) lithological data and stratigraphic interpretation by an appropriately qualified person to identify important features associated with groundwater monitoring; and e) target aquifer formation of the bore. Watercourse Diversions
- E26
Permanent watercourse diversions, or the re-establishment of a pre-existing watercourse where a temporary watercourse diversion is being replaced, must be designed, and constructed to: a) Maintain the pre-existing hydrologic characteristics of surface water and groundwater systems for the area in which the watercourse diversion is located b) Maintain the hydraulic characteristics of the permanent watercourse diversion that are equivalent to other local watercourses and are suitable for the area in which the diversion is located without using artificial structures that require on-going maintenance c) Maintain sediment transport and water quality regimes that allow the diversion to be self- sustaining, while minimising any impacts to upstream and downstream water quality, geomorphology, or vegetation. d) Maintain equilibrium and functionality in all substrate conditions at the location of the diversion. Permit OFFICIAL Environmental Authority EPML00941713 Temporary Interference with Waterways
- E27
Destroying native vegetation, excavating, or placing fill in a watercourse, lake, or spring necessary for and associated with mining operations must be undertaken in accordance with Department of Natural Resources and Mines (or its successor) Guideline - Activities in a Watercourse, Lake or Spring associated with Mining Activities. Design Plan
- E28
A certified Design Plan that achieves condition E26 for permanent watercourse diversions must be submitted to the administering authority at least 10 business days before commencing construction of the diversion.
- E29
The certified design plan for any temporary or permanent watercourse diversion must be consistent with the functional design/s that formed a part of the application documents for this authority. Construction and operation
- E30
A certified set of `as constructed' drawings and specifications must be submitted to the administering authority within 60 business days from the completion of construction of the temporary or permanent watercourse diversion, or re-establishment of the pre-existing watercourse. These drawings and specifications must state: a) That the 'as constructed' drawings and specifications meet the original intent of the design plan for the watercourse diversion b) Construction of the watercourse diversion is in accordance with the design plan. Register
- E31
The details of watercourse diversions planned and constructed under an environmental authority must be accurately recorded on the Register of Watercourse Diversions kept by the holder of the authority. An electronic copy must be provided to the administering authority on request. Receiving environment monitoring program
- E32
The environmental authority holder must develop and implement a Receiving Environment Monitoring Program (REMP) to monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised mining activity. This must include monitoring the effects of the mine on the receiving environment periodically (under natural flow conditions) and while contaminated water is being discharged from the site. For the purposes of the REMP, the receiving environment is all underlying groundwaters and the waters of Elder Creek and Weatherly Creek and connected or surrounding waterways within 6km 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 contaminated water.
- E33
A REMP Design Document that addresses the requirements of the REMP must be prepared and made available to the administering authority upon request.
- E34
A report outlining the findings of the REMP, including all monitoring results and interpretations must be prepared annually and made available on request to the administering 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. Water Management Plan
- E35
A Water Management Plan must be developed by an appropriately qualified person, documented, and implemented for all stages of the mining activity by 1 February 2020.
- E36
The holder of this environmental authority must ensure proper and effective measures are taken to avoid or Permit OFFICIAL Environmental Authority EPML00941713 otherwise minimise the generation and/or release of saline, acid and/or metalliferous mine drainage.
- E37
Any contaminated surface runoff or subsurface seepage from the Waste Rock Dump must be captured and directed to the Wallace North Storage Dam or Wallace South Pit. Groundwater Management Program
- E38
By 1 May 2020, a Groundwater Management Program must be developed, documented, and implemented by appropriately qualified persons.
- E39
The Groundwater Management Program required by Condition E38 must: a) identify potential sources of contamination to groundwater from the activity; and b) ensure that all potential groundwater impacts due to the activity are identified, monitored, and mitigated; and c) document sampling and monitoring methodology; and d) ensure that adequate groundwater monitoring and data analysis is undertaken to achieve the following objectives: i. detect any impacts to groundwater levels due to the activity; ii. detect any impacts to groundwater quality due to the activity; iii. determine compliance with conditions E18 and E19; and iv. determine trends in groundwater quality; and e) include an appropriate quality assurance and quality control program; and f) include a conceptual groundwater model; and g) include a review process to identify improvements to the program that addresses any comments provided by the administering authority.
- E40
From 1 May 2020, the Groundwater Management Program must be reviewed on an annual basis by an appropriately qualified person to determine if it continues to meet the requirements stated in condition E39. Monitoring and sampling
- E41
Monitoring and sampling must be carried out in accordance with written procedures and must address the requirements of the latest version of the following documents unless otherwise approved by the administering authority: a) for waters and aquatic environments, the Queensland Government's Monitoring and Sampling Manual - Environmental Protection (Water) Policy; and b) for groundwater, Groundwater Sampling and Analysis - A Field Guide (2009:27 GeoCat#6890.1) and Australian Standard AS/NZS 5667.11:1998 Water Quality - Sampling - Guidance on sampling of groundwaters. END OF CONDITIONS FOR SCHEDULE E Permit OFFICIAL Environmental Authority EPML00941713 Schedule F - Sewage Treatment
- F1
The only contaminant permitted to be released to land is treated sewage effluent in compliance with the release limits stated in Table F1
- F2
Treated sewage effluent may only be released to land in accordance with the conditions of this approval at the following locations: a) Within the nominated area(s) identified in Table A1 (irrigation area) b) Other land for the purpose of dust suppression and/or firefighting. Table F1 - Contaminant release limits to land (`Table F1') Contaminant Unit Release Limit Limit type Frequency 20 Maximum Monthly 5-day Biochemical Oxygen Demand (BOD5) mg/L 30 Maximum Monthly 30 Maximum Monthly Total suspended solids mg/L 15 Maximum Monthly Maximum Monthly Nitrogen mg/L 1000 Monthly 6.0 - 9.0 Range Phosphorus mg/L E-coli Organism/100ml pH pH units
- F3
The application of treated effluent to land must be carried out in a manner such that: a) Vegetation is not damaged b) There is no surface ponding of effluent c) There is no run-off of effluent.
- F4
If areas irrigated with effluent are accessible to employees or the general public, prominent signage must be provided advising that effluent is present, and care should be taken to avoid consuming or otherwise coming into unprotected contact with the effluent.
- F5
All sewage effluent released to land must be monitored at the frequency and for the parameters specified in Table F1.
- F6
The daily volume of effluent release to land must be measured and records kept of the volumes of effluent released.
- F7
When circumstances prevent the irrigation or beneficial reuse of treated sewage effluent such as during or following rain events, waters must be directed to a wet weather storage or alternative measures must be taken to store/lawfully dispose of effluent.
- F8
A minimum area of 0.5 ha of land, excluding any necessary buffer zones, must be utilised for the irrigation and/or beneficial reuse of treated sewage effluent.
- F9
Treated sewage effluent must only be supplied to another person or organisation that has a written plan detailing how the user of the treated sewage effluent will comply with their general environmental duty, under section 319 of the Act, whilst using the treated sewage effluent. END OF CONDITIONS FOR SCHEDULE F Permit OFFICIAL Environmental Authority EPML00941713 Schedule G - Land and Rehabilitation
- G1
The environmental authority holder must progressively rehabilitate all land disturbed by the mining activities in a manner that ensures rehabilitated areas achieve the following rehabilitation objectives: a) Safe for humans and wildlife; b) Non-polluting; c) Stable; d) Able to sustain an agreed post-mining land-use; e) In accordance with the requirements of Table G1; f) Revegetated with species endemic to the area with no declared pest species; g) Compliant with all conditions of this environmental authority h) Compliant with the approved Progressive Rehabilitation and Closure Plan.
- G2
A Land Use Management Document that describes how the rehabilitation objectives in condition G1 will be achieved must be developed, documented, and implemented for all stages of the mining activity by 1 September 2020. The Land Use Management Document must at minimum include: a) Schematic representation of the proposed final landform inclusive of site drainage features; b) Details of proposed slope design and erosion and sediment controls; c) Proposed cover designs for encapsulation of waste material, including performance criteria; d) Proposed re-vegetation methods inclusive of plant species selection, propagation methods and establishment of suitable plant growth medium (i.e., top soil); e) Materials balance for all rehabilitation requirements including available topsoil and material suitable for encapsulating waste in accordance with the proposed encapsulation methodology; f) Geotechnical, geochemical, and hydrological studies necessary to demonstrate likely success of proposed rehabilitation methodology to achieve the required rehabilitation outcomes; g) An investigation of proposed residual voids including potential for generation/mobilisation of contaminants, potential pathways for release of contaminants to waters (including groundwater) and a long-term void water balance model; and h) A rehabilitation monitoring program sufficient to identify if required rehabilitation outcomes have been achieved.
- G3
Rehabilitation in accordance with condition G2 must commence progressively.
- G4
Minimise the potential for contamination of land by hazardous contaminants. Permit OFFICIAL Environmental Authority EPML00941713 Table G1 - Rehabilitation Requirements (`Table G1') Mine Domain Mine Feature Rehabilitation Rehabilitation Indicators Completion Criteria Names Goal Objective Voids Open Pits Safe Site safe for Engineered structures Rehabilitation report: that humans and and signage to preclude all safety precautions animals humans and animals have been taken in (e.g., safety bund wall accordance with the and fencing, signage at relevant legislation - entrance and access Signs comply with AS roads blocked off) 1319:1994 - Safety Signs for the Occupational Environment. Safety assessment of Rehabilitation report: final landform by an geotechnical assessment appropriately qualified to determine suitable person (i.e., geotechnical extent of safety bund assessment) wall. Non-polluting Hazardous and Contamination Rehabilitation report: contaminated assessment of final certification of material landforms by an assessment and any adequately appropriately qualified remedial work. managed. person (i.e., grade control and waste rock management) Monitoring (void water Rehabilitation report: quality, surface water, assessment and groundwater, and stream certification of analytical sediment) to meet site results within applicable specific WQO and limits. guideline values. Stable Minimal Geotechnical Rehabilitation report: probability of assessment of risk on geotechnical assessment wall failure or final voids with on risk of wall failure. rock falls that photographic evidence. will cause Rehabilitation report: significant Residual risk residual risk assessment environmental assessment of final and control measures. harm. landforms Waste Rock Waste rock Safe Site safe for Safety assessment of Rehabilitation report: Dumps dumps humans and final landform by an certification structurally animals appropriately qualified safe for post mine land person use. Contamination Rehabilitation report: assessment of final post closure monitoring landforms by an shows the final landform appropriately qualified is compliant with person (i.e., grade established and
- G5
Before applying for surrender of a mining lease, the holder must (if applicable) provide to the administering authority a site investigation report under the Act, in relation to any part of the mining lease which has been used for notifiable activities or which the holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of that report to ensure that the land is suitable for its final land use.
- G6
Before applying for progressive rehabilitation certification for an area, the holder must (if applicable) provide the administering authority a site investigation report under the Act, in relation to any part of the area the subject of the application which has been used for notifiable activities or which the holder is aware is likely to be contaminated land, and also carry out any further work that is required as a result of the report to Permit OFFICIAL Environmental Authority EPML00941713 ensure that the land is suitable for its final land use under condition G1. Chemicals and flammable or combustible liquids
- G7
All explosives, hazardous chemicals, corrosive substances, toxic substances, gases, and dangerous goods should be stored and handled in accordance with the current Australian standard where such is applicable.
- G8
Flammable and combustible liquids, including petroleum products, should be stored, and handled in accordance with the latest edition of AS1940--The storage and handling of flammable and combustible liquids.
- G9
Where no relevant Australian standard exists store such materials within an effective on-site containment system. Biodiversity and Environmental offsets
- G10
The holder of this environmental authority must provide an offset for impacts on applicable state significant biodiversity values on ML90236, in accordance with Queensland Biodiversity Offset Policy. The biodiversity offset must be consistent with the requirements for an offset as identified in the Biodiversity Offset Strategy (as per condition G11) and must be provided: a) prior to impacting on state significant biodiversity values; or b) where a land-based offset is to be provided, within 12 months of the later of either of the following: 1) the date of issue of this environmental authority; or 2) the relevant stage identified in the Biodiversity Offset Strategy submitted under condition G11; or c) where an offset payment is to be provided, within 4 months of the later of either of the following: 1) the date of issue of this environmental authority; or 2) the relevant stage identified in the Biodiversity Offset Strategy submitted under conditions G11.
- G11
A Biodiversity Offset Strategy must be developed and submitted to the administering authority within either 30 days, or a lesser period agreed to by the administering authority, prior to impacting on the applicable state significant biodiversity values.
- G12
Significant residual impacts to prescribed environmental matters are not authorised under this environmental authority or the Environmental Offsets Act 2014.
- G13
Records demonstrating that each impact to a prescribed environmental matter did not, or is not likely to, result in a significant residual impact to that matter must be: a) completed by an appropriately qualified person; and b) kept for the life of the environmental authority. Topsoil Management
- G14
A topsoil management plan must be developed, documented, and implemented for all stages of the mining activity by 1 February 2020. END OF CONDITIONS FOR SCHEDULE G Permit OFFICIAL Environmental Authority EPML00941713 Schedule H - Regulated structures Assessment of Consequence Category
- H1
The consequence category of any structure must be assessed by a suitably qualified and experienced person in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance 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.
- H2
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.
- H3
Certification must be provided by the suitably qualified and experienced person who undertook the assessment, in the form set out in the Manual for Assessing Consequence Categories and Hydraulic Design and Construction of a Regulated Structure
- H4
All regulated structures must be designed by, and constructed under the supervision of, a suitably qualified and experienced person in accordance with the requirements of the Manual for Assessing Consequence
- H5
Construction of a regulated structure is prohibited unless: a) The holder has submitted a consequence category assessment report and b) Certification to the administering authority has been certified by a suitably qualified and experienced person for the design and design plan and the associated operating procedures in compliance with the relevant condition of this authority.
- H6
Certification must be provided by the suitably qualified and experienced person who oversees the preparation of the design plan in the form set out in the Manual for Assessing Consequence Categories and Structures.
- H7
Regulated structures must: a) Be designed and constructed in accordance with and conform to the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures b) Be designed and constructed with due consideration given to ensuring that the design integrity would not be compromised on account of: i. Floodwaters from entering the regulated dam from any watercourse or drainage line; and ii. Wall failure due to erosion by floodwaters arising from any watercourse or drainage line.
- H8
Certification by the suitably qualified and experienced person who supervises the construction must be submitted to the administering authority on the completion of construction of the regulated structure, and state that: a) The 'as constructed' drawings and specifications meet the original intent of the design plan for that regulated structure; b) Construction of the regulated structure is in accordance with the design plan. Operation of a Regulated Structure
- H9
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 H6, and Permit OFFICIAL Environmental Authority EPML00941713 b) A set of `as constructed' drawings and specifications, and c) Certification of those `as constructed drawings and specifications' in accordance with condition H8, and d) Where the regulated structure is to be managed as part of an integrated containment system for the purpose of sharing the DSA volume across the system, a copy of the certified system design plan. e) The requirements of this authority relating to the construction of the regulated structure have been met; f) The holder has entered the details required under this authority, into a Register of Regulated Structures; and g) There is a current operational plan for the regulated structures.
- H10
Each regulated structure must be maintained and operated, for the duration of its operational life until decommissioned and rehabilitated, in a manner that is consistent with the current operational plan and, if applicable, the current design plan and associated certified `as constructed' drawings. Mandatory Reporting Level
- H11
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.
- H12
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.
- H13
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.
- H14
The holder must record any changes to the MRL in the Register of Regulated Structures. Design Storage Allowance
- H15
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.
- H16
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).
- H17
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.
- H18
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. Annual Inspection Report
- H19
Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.
- H20
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.
- H21
The suitably qualified and experienced person who prepared the annual inspection report must certify the report in accordance with the Manual for Assessing Consequence Categories and Hydraulic Performance Permit OFFICIAL Environmental Authority EPML00941713
- H22
The holder must within 20 business days of receipt of the annual inspection report, provide to the administering authority: a) The recommendations section of the annual inspection report; and b) If applicable, any actions being taken in response to those recommendations; and c) If, following receipt of the recommendations and (if applicable) actions, the administering authority requests a full copy of the annual inspection report from the holder, provide this to the administering authority within 10 business days of receipt of the request. Transfer Arrangements
- H23
The holder of this environmental authority 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. Decommissioning and Rehabilitation
- H24
Regulated structures must not be abandoned but be either: a) decommissioned and rehabilitated to achieve compliance with condition H25; or b) be left in-situ for a beneficial use(s) provided that: i. it no longer contains contaminants that will migrate into the environment; and ii. it contains water of a quality that is demonstrated to be suitable for its intended beneficial use(s); and c) the holder of the environmental authority and the landholder agree in writing that the: i. dam will be used by the landholder following the cessation of the environmentally relevant activity(ies); and ii. Landholder is responsible for the dam, on and from an agreed date.
- H25
Before surrendering this environmental authority, the site must be rehabilitated to achieve a safe, stable, non-polluting landform and final land use of low intensity grazing. Register of Regulated Dams
- H26
A Register of Regulated Dams must be established and maintained by the holder for each regulated dam.
- H27
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.
- H28
The holder must make a final entry of the required information in the Register of Regulated Dams once compliance with condition H9 has been achieved.
- H29
The holder must ensure that the information contained in the Register of Regulated Dams is current and complete on any given day.
- H30
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.
- H31
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. Permit OFFICIAL Environmental Authority EPML00941713 Hydraulic Performance of Regulated Structures
- H32
All regulated structures must be specified in Table H1.
- H33
Each regulated structure authorised by this environmental authority as specified in Table A1, must meet the hydraulic performance criteria listed in Table H1 for that structure. Table H1 - Hydraulic Performance Criteria (`Table H1') Name of Spillway Capacity Design Storage Allowance Mandatory Reporting Purpose of Regulated (DSA) structure Structure Level (MRL) Design Criteria mAHD Design mAHD Design mAHD Criteria Criteria Wallace North 1: 20 TBA* 1: 100 Year ARI TBA* 1:10 AEP TBA* Contain mine Storage Dam Year AEP 3-month wet 72 hours affected water season plus duration (WNSD) process inputs for the 3-month wet season 1: 100 Year ARI TBA* 1:10 AEP TBA* 3-month wet 72 hours Wallace North 1: 20 TBA* season plus duration Contain overflow process inputs from WNSD Pit Year AEP for the 3-month wet season Wallace North TBA* TBA* 1:1,000 AEP TBA* TBA* TBA* Flood Protection Pit Flood Bund/Levee Wallace South 1: 100 TBA* 1: 100 Year ARI TBA* TBA* TBA* Contains Process Year AEP 3-month wet leachate Ponds season plus solution process inputs for the 3-month wet season Wallace South 1: 100 TBA* 1: 100 Year ARI TBA* TBA* TBA* Contain overflow Stormwater Year AEP 3-month wet from Process Pond season plus Ponds process inputs for the 3-month wet season Wallace South TBA* TBA* 1: 1,000 AEP TBA* TBA* TBA* Flood Protection Watercourse Diversion Levee Permit OFFICIAL Environmental Authority EPML00941713 * TBA - to be determined prior to construction of the structure
- H34
The hydraulic performance criteria specified in Table H1 are the minimum mandatory performance requirements; regulated structures must be managed in a manner that ensures compliance with all conditions of this environmental authority. END OF CONDITIONS FOR SCHEDULE H Permit OFFICIAL Environmental Authority EPML00941713 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. `AEP' or `Annual Exceedance Probability' means the probability that at least one event more than a particular magnitude will occur in any given year. `Annual inspection report' means an assessment prepared by a suitably qualified and experienced person containing details of the assessment against the most recent consequence assessment report and design plan (or system design plan); a) against recommendations contained in previous annual inspections reports; b) against recognised dam safety deficiency indicators; c) for changes in circumstances potentially leading to a change in consequence category; d) for conformance with the conditions of this authority; e) for conformance with the `as constructed' drawings; f) for the adequacy of the available storage in each regulated dam, based on an actual observation or observations taken after 31 May each year but prior to 1 November of that year of accumulated sediment, state of the containment barrier and the level of liquids in the dam (or network of linked containment systems); g) for evidence of conformance with the current operational plan. `administering authority' is the agency that administers the environmental authority provisions under the Environmental Protection Act 1994. `air blast 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 air blast overpressure measured in decibels linear (dBL). `applicable reference site' means a reference site or reference bore located on the same mining lease as the compliance bore or compliance site. `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. `assessed or assessment' by a suitably qualified and experienced person in relation to a consequence assessment of a dam, means that a statutory declaration has been made by that person and, when taken together with any attached or appended documents referenced in that declaration, all of the following aspects are addressed and are sufficient to allow an independent audit of the assessment: a) exactly what has been assessed and the precise nature of that determination; b) the relevant legislative, regulatory, and technical criteria on which the assessment has been based; c) the relevant data and facts on which the assessment has been based, the source of that material, and the efforts made to obtain all relevant data and facts; and d) the reasoning on which the assessment has been based using the relevant data and facts, and the relevant criteria.