Data as at 14 September 2026 · from the Queensland EP Act public register
EPML02840015 · DINGO MINERALS PTY LTD
Minerals environmental authority EPML02840015 (DINGO MINERALS PTY LTD), Granted. 87 conditions indexed. Holds PRC plan P-PRCP-100730824.
- Status
- Granted
- Holders
- DINGO MINERALS PTY LTD
- Tenures
- ML90241
- PRC plan
- P-PRCP-100730824 · effective 2024-10-04
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
87 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 with the potential to cause environmental harm must not be released directly or indirectly to the receiving environment, except as 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
and Schedule J - Map 1 Location of authorised disturbance. Table A1 - Authorised disturbance (`Table A1') Name of disturbance Maximum area of Mining Purpose area disturbance (ha) Lease Run-of-mine (ROM) pad 3.0 ML90241 Temporary storage, crushing and handling of ore. ML90241 North Pit 3.3 Mining of ore and site water management. ML90241 Note: The North pit is a regulated dam with minimum South pit 10.2 hydraulic performance criteria detailed in Table H1 of ML90241 this environmental authority. Mining of ore and site water management. Note: The North pit is a regulated dam with minimum hydraulic performance criteria detailed in Table H1 of this environmental authority. Abandonment bund 1.7 Waste rock dump (WRD) 23.4 ML90241 Storage and disposal of waste rock. ML90241 WRD dam 6.0 ML90241 Water management for stormwater runoff from the WRD area. Diversion drain 1.4 ML90241 Water management to prevent stormwater runoff ML90241 entering mine workings. Access Road, Haul Roads and 11.0 tracks Site access. Light Infrastructure Area: 2.7 Site administration, Fuel storage and power generation, Maintenance and storage. including Administration buildings, Fuel storage, Power facility, sewage treatment, and Workshop area.
- 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 a proper and efficient condition; c) Operate such measures, plant and equipment in a proper and efficient manner; and d) Ensure all instruments and devices used for the measurement or monitoring of any parameter under any condition of this environmental authority are properly calibrated. Monitoring
- A5
Except where specified in another condition of this environmental authority, all monitoring data, 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; Permit Environmental authority EPML02840015 b) Kept for a period of not less than five years; and c) Provided to the administering authority in the specified format within 10 business days of a request.
- 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). Risk management
- A7
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 5 October 2016. Notification of emergencies, incidents and exceptions
- A8
The holder of this environmental authority must notify the administering authority by written notification within 24 hours, after becoming aware of any emergency or incident which results in the release of contaminants not in accordance, or reasonably expected to be not in accordance with, the conditions of this environmental authority.
- A9
Within 10 business days following the initial notification of an emergency or incident, 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; and c) Proposed actions to prevent a recurrence of the emergency or incident. Complaints
- A10
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; and h) Person responsible for resolving the complaint.
- A11
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 to investigate any complaint of environmental harm. The results of the investigation (including an analysis and interpretation of the monitoring results) and abatement measures, where implemented, must be provided to the administering authority within 10 business days Permit Environmental authority EPML02840015 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
- A12
The holder of this environmental authority must: a) Within one (1) year of the commencement of this environmental authority, 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 (3) yearly intervals, from the completion of the report referred to above; and c) Provide each report to the administering authority within 90 days of its completion.
- A13
Where a condition of this environmental authority requires compliance with a standard, policy or guideline published externally to this environmental authority and the standard is amended or changed subsequent to the issue of this environmental authority, the holder of this environmental authority must: a) Comply with the amended or changed standard, policy or guideline within two years of the amendment or change being made, unless a different period is specified in the amended standard or relevant legislation, or where the amendment or change relates specifically to regulated structures referred to in Schedule I, the time specified in that condition; and b) Until compliance with the amended or changed standard, policy or guideline is achieved, continue to remain in compliance with the corresponding provision that was current immediately prior to the relevant amendment or change. Exploration
- A14
All exploration activities carried out on the mining lease must comply with each of the standard environmental conditions contained in the latest version of the Eligibility criteria and standard conditions for exploration and mineral development projects. END OF CONDITIONS FOR SCHEDULE A 1.1 Schedule B - Air
- C1
All waste generated as part of the mining activities must be disposed of in a lawful manner at an off-site facility, with the exception of: a) Treated sewage effluent, which may only be released via sub-surface infiltration trench and must be undertaken in accordance with condition C2 of this environmental authority; and b) Waste rock, which must be characterised, handled and disposed of in accordance with condition C3 of this environmental authority.
- C2
The only contaminant permitted to be released to land is treated sewage effluent released in accordance with condition C1 (a) and the release limits specified in Table C1. Table C1 - Contaminant release limits to land (`Table C1') Contaminant Unit Release Limit Limit Type Frequency 5 day Biochemical mg/L 20 Maximum Monthly oxygen demand (BOD)1 Total suspended solids mg/L 30 Maximum Monthly Nitrogen mg/L 30 Maximum Monthly Phosphorus mg/L 15 Maximum Monthly E-coli Organisms/100ml 1000 Maximum Monthly pH pH units 6.0-9.0 Range Monthly
- C3
All potentially acid forming waste rock must be: (a) Identified 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 regards to acid producing potential is uncertain, this material must be treated as potentially acid 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. END OF CONDITIONS FOR SCHEDULE C Permit Environmental authority EPML02840015 Schedule D - Noise Noise limits
- 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 or commercial place. Table D1 - Noise limits (`Table D1') Sensitive place Noise level Monday to Saturday Sundays and public holidays dB(A) measured as: 7am to 6pm to 10pm to 9am to 6pm to 10pm to 6pm 10pm 7am 6pm 10pm 9am L CV = 50 CV = 45 CV = 40 CV = 45 CV = 40 CV = 35 Aeq, adj, 15 mins AV = 5 AV = 5 AV = 0 AV = 5 AV = 5 AV = 0 L CV = 55 CV = 50 CV = 45 CV = 50 CV = 45 CV = 40 A1, adj, 15 mins AV = 10 AV = 10 AV = 5 AV = 10 AV = 10 AV = 5 Notes: a) CV: Critical Value, AV: Adjustment Value b) To calculate noise limits; If bg (CV-AV): Noise limit = bg + AV If (CV-AV) < bg CV: Noise limit = CV If bg > CV: Noise limit = bg+0 c) In the event that measured bg (LA90,adj, 15 mins) is less than 30 dB(A), then 30 dB(A) can be substituted for the measured background level. d) Bg = background noise level (LA90, adj, 15 mins) measured over 3 - 5 days at the nearest sensitive receptor. e) If the project is unable to meet the noise limits as calculated above alternative limits may be calculated using the process outlined in the `Planning for Noise Control' guideline. Airblast 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 or commercial place. Table D2 - Blasting noise limits (`Table D2') Blasting noise Sensitive or commercial blasting noise limits place limits limits 7am to 6pm 6pm to 7am Airblast overpressure 115 dB (Linear) Peak for 9 out of 10 No blasting consecutive blasts initiated and not greater than 120 dB (Linear) Peak at any time Ground vibration 5mm/second peak particle velocity for 9 No blasting peak particle velocity out of 10 consecutive blasts and not greater than 10 mm/second peak particle velocity at any time Monitoring and reporting
- D3
Noise monitoring and recording must include the following descriptor characteristics and matters: a) L (where N equals the statistical levels of 1, 10 and 90 and T = 15 mins) AN,T b) background noise LA90 Permit Environmental authority EPML02840015 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 the complaint 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. END OF CONDITIONS FOR SCHEDULE D Permit Environmental authority EPML02840015 Schedule E - Water Contaminant release
- E1
Contaminants must not be released to receiving waters unless there are natural flows in the receiving water of at least twenty times the volume of the release.
- E2
Contaminants may only be released to receiving waters from a location specified in Table E1 and must not exceed any release limit specified in Table E2. Table E1 - Authorised contaminant release points (`Table E1') Location Release point Easting Northing Release source Monitoring Receiving waters Point description (GDA94 - Zone 54) (GDA94 - Zone 54) Pit Drainage of unnamed tributary
- E3
Contaminated water released from a release point specified in Table E1 must be monitored at the release point for all contaminants and at the frequency specified in Table E2. Table E2 - Contaminant release limits (`Table E2) Monitoring frequency Contaminant Release limit1, 2 - One sample must be taken within 2 hours pH (pH units) 6.0 or 20th percentile3 of reference site4 value, whichever is lower of any release event commencing; and - For release events with duration of 7.5 or 80th percentile3 of reference site4 value, whichever is higher greater than twenty-four hours, samples must be taken daily for one week and once EC (s/cm) 1,500 or 20 times the 80th percentile3 of reference site value4, a week thereafter until the release event Turbidity (NTU) whichever is higher ceases. 20 x 80th percentile of reference site value3 Sulfate 1,000 or 20 x 80th percentile3 of reference site4 concentration, Fluoride whichever is higher 2 or 20 x 80th percentile3 of reference site4 concentration, whichever is higher Arsenic 0.14 or 20 x 80th percentile3 of reference site4 concentration, whichever is higher Barium 20 x 80th percentile3 of reference site4 concentration Bismuth 20 x 80th percentile3 of reference site4 concentration Chromium 0.02 or 20 x 80th percentile3 of reference site4 concentration, Cobalt whichever is higher Copper 0.056 or 20 x 80th percentile3 of reference site4 concentration, Molybdenum whichever is higher Nickel Selenium 0.028 or 20 x 80th percentile3 of reference site4 concentration, Uranium whichever is higher 0.15 or 20 x 80th percentile3 of reference site4 concentration, whichever is higher 0.22 or 20 x 80th or percentile3 of reference site4 concentration, whichever is higher 0.22 or 20 x 80th percentile3 of reference site4 concentration, whichever is higher 0.4 or 20 x 80th percentile3 of reference site4 concentration, whichever is higher 1 All metals and metalloids must be measured as both `total' (from analysis of an unfiltered sample) and `dissolved' (from analysis of a field filtered sample). 2 Measured and reported in mg/L unless specified otherwise. 3 The relevant reference site is specified in Table E3. Permit Environmental authority EPML02840015 4 Site-specific trigger levels and water quality objectives for water quality (20th, 80th and 95th percentile of reference site concentration) must be calculated in accordance with QWQG (2009) and ANZECC (2000) methodology if sufficient monitoring data is available. The
- E4
The environmental authority holder must notify the administering authority within twenty-four hours of any contaminant release commencing or ceasing. Surface waters
- E5
The quality of receiving waters must be monitored at the locations specified in Table E3, for the contaminants and at the frequency specified in Table E4. Table E3 - Receiving waters reference and compliance monitoring sites (`Table E3') Monitoring sites Monitoring site description and Location Northing purpose (GDA94 - Zone 54) Easting (GDA94 - Zone 54) Reference sites BASW09 Drainage feature outside and northeast of 377540 7738673 disturbance footprint catchment BASW05 Drainage feature southwest and outside of 380736 7742273 disturbance footprint catchment Compliance sites BASW01 Watercourse at Mining Lease west 378513 7743286 boundary BASW04 Watercourse downstream of North Pit 379491 7742440 BASW08 Drainage feature at the top of catchment 380776 7740396 (Mining Lease entry) BASW11 Drainage feature upstream of junction with 379884 7743040 watercourse Table E4 - Receiving waters trigger levels and quality objectives (`Table E4') Contaminant Water quality1, 3 Sediment quality7, 4 Monitoring Trigger levels frequency Water quality Trigger levels2 Sediment quality objectives - For water objectives2 quality: a) At least daily pH (pH units) 6.0 (minimum) 5.0 (minimum) Not applicable during release events, the first 7.5 (maximum) 9.0 (maximum) Not applicable sample must be taken within two Electrical 500 or 80th 1,000 or 95th percentile6 Not applicable hours of the conductivity percentile6 of of reference site5, Not applicable release event (S/cm) reference site5, whichever is lower Not applicable commencing; whichever is higher Turbidity (NTU) 25 or 95th percentile6 of 80th percentile6 of reference site5, Sulfate reference site5 whichever is lower 1,000 or 95th percentile6 80th percentile6 of of reference site5, reference site5 whichever is lower Permit Environmental authority EPML02840015 Fluoride 80th percentile6 of 2 or 95th percentile6 of Not applicable and Arsenic reference site5 reference site5, b) At least once
- E6
The contaminant concentrations measured in receiving waters including any compliance site specified in Table E3 must not exceed a water quality objective or sediment quality objective specified in Table E4.
- E7
If a contaminant concentration measured at a compliance site specified in Table E3 exceeds any trigger level specified in Table E4, 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 for this event; or b) If the contaminant concentration measured at the compliance site is greater than the contaminant concentration measured at the applicable reference site: i. Notify the administering authority within twenty-four hours of becoming aware of the trigger level exceedance; and ii. Undertake further sampling of potentially impacted receiving waters for all contaminants specified in Table E4; and iii. Complete an investigation into the potential for environmental harm to occur in accordance with ANZECC (2000) methodology, within three months of identifying this exceedance or the alternative timeframe specified by the administering authority; and iv. Within one week of completing the investigation, provide a written report to the administering authority detailing all pertinent aspects of the investigation (such as objectives, applied methodology, investigation outcomes, assumptions relied upon and justification for any assertions made) and any actions undertaken and/or proposed to prevent or minimise environmental harm. Note: Where a contaminant trigger level exceedance has occurred and is under investigation in accordance with condition E7, no further reporting is required for subsequent exceedance events of that contaminant during the course of the investigation. Groundwater
- E8
The holder of this environmental authority must not release contaminants to groundwater.
- E9
The extraction of groundwater must not cause environmental harm to any groundwater dependent ecosystems.
- E10
Groundwater quality and levels must be monitored: a) at the locations specified in Table E5 (Groundwater monitoring bore locations); and b) at the frequencies specified in Table E5 (Groundwater monitoring bore locations); and c) for the quality characteristics identified in Table E6 (Groundwater Quality Objectives). Table E5 - Groundwater monitoring bore locations (`Table E5') Monitoring Point Location Surface RL Total Depth Screened Monitoring Frequency interval (GDA94 - Zone 54) (m)1 (mbgl2) (mbgl) Easting Northing Standing Groundwater water level quality Compliance bores Permit Environmental authority EPML02840015 BAWB05 380948 7740252 377.32 102 35-102 Monthly 3 monthly Bore E 28-83 Monthly 3 monthly 380022 7738827 334.23 85 20-101 96-102 Monthly 3 monthly BAWB01 380432 7742097 352.68 104 50-102 94-100 Limit B4 BAWB02 379480 7742395 310.59 104 18-146 7.0-8.5 5-6 1365 BAWB03 379834 7741692 329.50 104 2-3 1010 3-4 73 BAWB04 380043 7742054 329.14 100 200 1-5 21 BAWB07 379849 7741936 328.74 127 5-15 0.9 1-5 1.7 BAWBR1 380292 7740939 334.49 14 5-15 0.0132 1-5 0.170 BAWBR2 379912 7741279 322.98 14 5-15 0.420 1-5 BAWBR3 379991 7741485 326.02 14 5-15 Seepage monitoring bores Seepage Bore 1a 380084 7741046 336.819 6 Seepage Bore 1b 380084 7741048 336.487 16 Seepage Bore 2a 380025 7741117 331.218 6 Seepage Bore 2b 380023 7741116 331.342 16 Seepage Bore 3a 379985 7741133 332.189 6 Seepage Bore 3b 379986 7741135 331.962 16 Seepage Bore 4a 380711 7740798 355.061 6 Seepage Bore 4b 380711 7740800 355.111 16
- E11
Groundwater measured from any compliance bore specified in Table E5 must not exceed the corresponding Limit A specified in Table E6 on any five consecutive sampling occasions.
- E12
Groundwater measured from any compliance bore specified in Table E5 must not exceed the corresponding Limit B specified in Table E6 on any three consecutive sampling occasions.
- E13
If groundwater measured from any compliance bore specified in Table E5 exceeds the corresponding Limit B specified in Table E6 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. Bore construction and maintenance and decommissioning
- E14
The construction, maintenance and decommissioning of groundwater monitoring bores must be undertaken in a manner that: a) prevents contaminants entering the groundwater; and Permit Environmental authority EPML02840015 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.
- E15
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. Groundwater Management Program
- E16
A Groundwater Management Program must be developed, documented and implemented by appropriately qualified persons.
- E17
The Groundwater Management Program required by Condition E16 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 condition E11 and E12; 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 includes addresses any comments provided by the administering authority.
- E18
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 E17.
- E19
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; 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; Permit Environmental authority EPML02840015 c) for subterranean aquatic fauna, the Guideline for the Environmental Assessment of Subterranean Aquatic Fauna. Receiving environment monitoring program
- E20
The environmental authority holder must develop, document and implement a Receiving Environment Monitoring Program (REMP) to monitor, identify and describe any adverse impacts to environmental values of receiving waters by 5 October 2016. The REMP must include at minimum: a) Monitoring the effects of the mining activities on the receiving environment periodically under natural flow conditions and while contaminants are being released (if applicable); b) Encompass the waters of Leichardt River and connected or surrounding waterways within 10km downstream of the mining activities; c) Identification of all environmental values of receiving waters; d) An assessment of background reference water quality, the condition of downstream water quality compared against water quality objectives, and the suitability of current environmental authority conditions to protect downstream environmental values; and e) Application of biological monitoring if required to determine whether the mining activities are being conducted in a manner that enhances or protects the environmental values of receiving waters;
- E21
A report outlining the findings of the REMP that addresses all requirements specified under condition E20, including all monitoring results and any interpretations or assumptions relied upon, must be completed annually. Water management
- E22
A Water Management Plan must be developed by an appropriately qualified person, documented and implemented for all stages of the mining activity. Erosion and sediment control
- E23
An Erosion and Sediment Control Plan must be developed, documented and implemented by an appropriately qualified person for all stages of the mining activities to minimise erosion and the release of sediment to receiving waters. END OF CONDITIONS FOR SCHEDULE E Permit Environmental authority EPML02840015 Schedule F - Biodiversity Biodiversity offsets
- F1
Impacts to prescribed environmental matters, other than by low impact activities, are only authorised to occur if the impacts do not exceed the maximum extent of impact specified for that prescribed environmental matter specified in Table F1 - Authorised impacts to prescribed environmental matters.
- F2
An environmental offset made under the Environmental Offsets Act 2014 must be delivered for each impact specified in Table F1 - Authorised impacts to prescribed environmental matters as requiring an environmental offset.
- F3
A notice of election must be provided to the administering authority no less than three months before the proposed commencement of the prescribed activities. Table F1 - Authorised impacts to prescribed environmental matters (`Table F1') Prescribed environmental matter Location of Maximum Environmental prescribed extent of offset required environmental impact matter (GDA94 Yes - Zone 54) Protected wildlife habitat Habitat for an animal that is vulnerable wildlife - 379910 E, 5 ha Purple-necked rock wallaby Petrogale 7740390 N purpuriecollis
- F4
Prior to the commencement of any impacts to a prescribed environmental matter for which an offset is required by condition F2, the authority holder must enter into an Agreed Delivery Arrangement with the administering authority END OF CONDITIONS FOR SCHEDULE F Permit Environmental authority EPML02840015 Schedule G - Land and Rehabilitation
- G1
The environmental authority holder must rehabilitate all significantly disturbed land caused 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 a post-mining land-use agreed to by the administering authority and any underlying landholders; e) Revegetated with species endemic to the area with no declared pest species; and f) Compliant with all conditions of this environmental authority.
- G2
Two years from commencement of mining1 the environmental authority holder must develop and document a Post Mine Land-use Plan (`PMLUP') that describes how the rehabilitation objectives in condition G1 will be achieved. The PMLUP must at minimum include: a) Schematic representation of the proposed final land form 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 top soil 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. Note: Commencement of mining is taken to be the date that extraction of material from the pit commences.
- G3
Rehabilitation must commence progressively in accordance with the Plan of Operations.
- G4
Residual voids (including open pits and underground workings) must not cause any serious or material environmental harm, other than the environmental harm constituted by the existence of the residual void itself, subject to any other condition within this environmental authority.
- G5
All explosives, flammable or corrosive substances, hazardous chemicals, toxic substances, gases and dangerous goods must be stored and handled in accordance with: a) The current Australian Standard where applicable; or b) Where no relevant Australian Standard exists, store such materials within an on-site containment system sufficient to prevent release to the receiving environment. END OF CONDITIONS FOR SCHEDULE G Permit Environmental authority EPML02840015 Schedule H - Regulated Dams
- 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 of Structures (EM635) at the following times: a) prior to the design and construction of the structure, if it is not an existing structure; or b) if it is an existing structure, prior to the adoption of this schedule; or c) prior to any change in its purpose or the nature of its stored contents.
- 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 Performance of Structures (EM635). Design and construction of a regulated structure
- H4
Conditions H5 to H9 inclusive do not apply to existing structures.
- H5
All regulated structures must be designed by, and constructed5 under the supervision of, a suitably qualified and experienced person in accordance with the requirements of the Manual for Assessing Consequence Categories and Hydraulic Performance of Structures (EM635).
- H6
Construction of a regulated structure is prohibited unless the holder has submitted a consequence category assessment report and certification to the administering authority has been certified by a suitably qualified and experienced person for the design and design plan and the associated operating procedures in compliance with the relevant condition of this authority.
- H7
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 Hydraulic Performance of Structures (EM635), and must be recorded in the Regulated Dams/Levees register.
- H8
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 (EM635); 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) possible erosion by floodwaters arising from any watercourse or drainage line.
- H9
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
- H10
Operation of a regulated structure, except for an existing structure, is prohibited unless: Permit Environmental authority EPML02840015 a) the holder has submitted to the administering authority: i) one paper copy and one electronic copy of the design plan and certification of the `design plan' in accordance with condition H8, and ii) a set of `as constructed' drawings and specifications, and iii) certification of those `as constructed drawings and specifications' in accordance with condition H9, and iv) 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. v) the requirements of this authority relating to the construction of the regulated structure have been met; vi) the holder has entered the details required under this authority, into a Register of Regulated Dams; and vii) there is a current operational plan for the regulated structures.
- H11
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
- H12
Conditions H14 to H17 inclusive only apply to Regulated Structures which have not been certified as low consequence category for `failure to contain - overtopping'.
- H13
The Mandatory Reporting Level (the MRL) specified in Table H1 must be marked on a regulated dam in such a way that during routine inspections of that dam, it is clearly observable.
- H14
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.
- H15
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.
- H16
The holder must record any changes to the MRL in the Register of Regulated Structures. Design storage allowance
- H17
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.
- H18
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), as specified in Table H1.
- H19
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.
- H20
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 Permit Environmental authority EPML02840015 any year, act to prevent the occurrence of any unauthorised discharge from the regulated dam or linked containment systems. Annual inspection report
- H21
Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.
- H22
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.
- H23
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 of Structures (EM635).
- H24
The holder must: a) Within 20 business days of receipt of the annual inspection report, provide to the administering authority: i) The recommendations section of the annual inspection report; and ii) If applicable, any actions being taken in response to those recommendations; and b) If, following receipt of the recommendations and (if applicable) actions, the administering authority requests a full copy of the annual inspection report from the holder, provide this to the administering authority within 10 business days6 of receipt of the request. Transfer arrangements
- H25
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. Decommissioning and rehabilitation
- H26
Dams must not be abandoned but be either: a) decommissioned and rehabilitated to achieve compliance with condition H27; or b) be left in-situ for a beneficial use(s) provided that: i) it no longer contains contaminants that will migrate into the environment; and ii) it contains water of a quality that is demonstrated to be suitable for its intended beneficial use(s); and iii) the administering authority, the holder of the environmental authority and the landholder agree in writing that the dam will be used by the landholder following the cessation of the environmentally relevant activity(ies).
- H27
After decommissioning, all significantly disturbed land caused by the carrying out of the environmentally relevant activity(ies) must be rehabilitated to meet the following final acceptance criteria: a) the landform is safe for humans and fauna; b) the landform is stable with no subsidence or significant erosion gullies for at least three (3) years; c) any contaminated land (e.g. contaminated soils) is remediated and rehabilitated; d) not allowing for acid mine drainage; or Permit Environmental authority EPML02840015 e) there is no ongoing contamination to waters (including groundwater); f) rehabilitation is undertaken in a manner such that any actual or potential acid sulfate soils on the area of significant disturbance are treated to prevent or minimise environmental harm in accordance with the Instructions for the treatment and management of acid sulfate soils (2001); g) all significantly disturbed land is reinstated to the pre-disturbed soil suitability class; h) for land that is not being cultivated by the landholder: i. groundcover, that is not a declared pest species is established and self-sustaining ii. vegetation of similar species richness and species diversity to pre-selected analogue sites is established and suited to the post mine land use, and iii. the maintenance requirements for rehabilitated land is no greater than that required for the land prior to its disturbance caused by carrying out the petroleum activity(ies). i) for land that is to be cultivated by the landholder, cover crop is revegetated, unless the landholder will be preparing the site for cropping within 3 months of petroleum activities being completed. Register of Regulated Dams
- H30
A Register of Regulated Dams must be established and maintained by the holder for each regulated dam.
- H31
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.
- H32
The holder must make a final entry of the required information in the Register of Regulated Dams once compliance with condition H10 and H11 has been achieved.
- H33
The holder must ensure that the information contained in the Register of Regulated Dams is current and complete on any given day.
- H34
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.
- H35
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. Hydraulic performance of regulated dams
- H36
All regulated dams must meet the hydraulic performance criteria specified in Table H1. Table H1 - Hydraulic performance criteria (`Table H1') Consequence Hydraulic performance criteria category Name of dam Design Storage Mandatory Reporting Allowance Level North Pit Significant Spillway capacity South Pit Significant 1:20 AEP 2 month wet 1:10 AEP 72 hour duration WRD Dam Significant 1:100 to 1:1000 AEP 72 season storm event hour duration storm event 1:100 to 1:1000 AEP72 1:20 AEP 2 month wet 1:10 AEP 72 hour duration hour duration storm event season storm event 1:100 to 1:1000 AEP72 1:20 AEP 2 month wet 1:10 AEP 72 hour duration hour duration storm event season storm event END OF CONDITIONS FOR SCHEDULE H Permit Environmental authority EPML02840015 Schedule I - Definitions 1.3 Definitions Key terms and/or phrases used in this document are defined in this section and bolded throughout this document. Applicants should note that 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. Affected person is someone whose drinking water can potentially be impacted as a result of discharges from a dam or their life can be put at risk due to dwellings or workplaces being in the path of a dam break flood. Airblast overpressure means energy transmitted from the blast site within the atmosphere in the form of pressure waves. The maximum excess pressure in this wave, above ambient pressure is the peak airblast overpressure measured in decibels linear (dBL). Annual 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