Data as at 14 September 2026 · from the Queensland EP Act public register
EA0001976 · PEMBROKE OLIVE DOWNS PTY LTD
Coal environmental authority EA0001976 (PEMBROKE OLIVE DOWNS PTY LTD), Granted. 196 conditions indexed. Holds PRC plan P-PRCP-100908121.
- Status
- Granted
- Holders
- PEMBROKE OLIVE DOWNS PTY LTD
- Tenures
- ML700032; ML700033; ML700034; ML700035; ML700036
- PRC plan
- P-PRCP-100908121 · effective 2026-06-02
- How it was read
- Numbered conditions
- Register
- Register record · Instrument PDF
Conditions
196 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
The holder of this environmental authority is approved for an extraction rate of up to 20Mtpa (million tonnes per annum) of ROM (run-of-mine) coal.
- A3
In carrying out the mining activity, disturbance must only occur in accordance with Figure 1(a): Authorised Disturbance - Olive Downs South Domain and Figure 1(b): Authorised Disturbance - Willunga Domain.
- 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.
- A5
Monitoring All monitoring records or reports required by this environmental authority must be kept for a period of not less than five (5) years and provided upon request to the administering authority, in the format requested.
- A6
Monitoring, and determinations required under any condition of this environmental authority must be conducted by an appropriately qualified person.
- A7
Management Plans, Monitoring Programs and Reports Management plans, monitoring programs and reports required under any condition of this environmental authority must be developed by an appropriately qualified person.
- A8
Upon request from the administering authority, copies of monitoring results, records, registers, monitoring programs, management plans and reports required by the conditions of this environmental authority must be made available and provided to the administering authority within: (a) ten (10) business days; or (b) an alternative timeframe agreed between the administering authority and the environmental authority holder.
- A9
Risk management The holder of this environmental authority must develop and implement a risk management system for the mining activity which mirrors the content requirement of the Standard for Risk Management (ISO 31000:2009). Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- A10
Notification of emergencies, incidents and exceptions The holder of this environmental authority must notify the administering authority by written notification within twenty-four (24) hours, after becoming aware of any emergency or incident which results in the release of contaminants not in accordance with the conditions of this environmental authority.
- A11
Within ten (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.
- A12
Complaints The holder of this environmental authority must record all environmental complaints received about the mining activity including: (a) name, address and contact number of the complainant; (b) time and date of complaint; (c) reasons for the complaint; (d) investigations undertaken; (e) conclusions formed; (f) actions taken to resolve the complaint; (g) any abatement measures implemented; and (h) person responsible for resolving the complaint.
- A13
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 ten (10) business days of completion of the investigation, or no later than ten (10) business days after the end of the timeframe nominated by the administering authority to undertake the investigation.
- A14
Third-party Reporting The holder of this environmental authority must: (a) obtain from an appropriately qualified and experienced third party a report on compliance with the conditions of this environmental authority by 19 August 2023; (b) obtain further such reports at regular intervals not exceeding three (3) years from the completion of the report referred to above; and (c) provide each report to the administering authority by 1 December of the relevant year referred to above. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- A15
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 (2) years of the amendment or change being made, unless a different period is specified in the amended standard or relevant legislation; or (b) where the amendment or change relates specifically to regulated structures referred to in Condition J26 the time specified in that condition 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.
- A16
Analyses All analyses required under this environmental authority must be carried out by a laboratory that has National Association of Testing Authorities (NATA) certification, or an equivalent certification, for such analyses.
- A17
Commencement of pre-development activities The holder of this environmental authority must provide the administering authority with a date in writing for when pre-development activities commence under this environmental authority.
- A18
Commencement of mining activities The holder of this environmental authority must provide the administering authority with a date in writing for when mining activities commence under this environmental authority. Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE B: AIR Condition Condition Number
- B1
Dust nuisance The holder of this environmental authority must ensure that all reasonable and feasible avoidance and mitigation measures are employed so that the dust and particulate matter emissions generated by the mining activity 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 (1) 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, when monitored in accordance with the most recent version of either: (i) 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 (ii) 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--PM2.5 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. Note: Any exceedance of 50 -g/m3 (24-hour average) is not considered as a breach of this condition if the holder of this environmental authority demonstrates that it is caused by natural events such as bushfires and dust storm.
- B2
When requested by the administering authority or as a result of a complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the authorised officer), dust and particulate monitoring (including dust deposition, total suspended particles (TSP), PM10 and PM2.5) must be undertaken, and the results thereof must be notified to the administering authority within fourteen (14) days following completion of monitoring. This includes providing interim reports if the monitoring lasts for more than one (1) month.
- B3
Monitoring must be carried out at a place(s) relevant to the potentially affected dust sensitive place. Monitoring must be conducted in accordance with the appropriate standards. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- B4
If the monitoring which is carried out in accordance with Condition B2 indicates an exceedance of the relevant limits in Condition B1, then the holder of this environmental authority must investigate whether the exceedance is due to emissions from the activity. If the mining activity is found to be the cause of the exceedance then the holder of this environmental authority must: (a) address the complaint including the use of appropriate dispute resolution if required; and (b) immediately implement dust abatement measures so that emissions of dust from the activity do not result in further environmental nuisance.
- B5
The holder of this environmental authority must notify the administering authority within seven (7) days of an exceedance identified under Condition B4 and in accordance with the relevant limits in Condition B1.
- B6
Dust Management Plan The Dust Management Plan entitled "Olive Downs Coking Coal Project Air Quality Management Plan" and submitted on 29 November 2019 must be implemented prior to pre-development activities.
- B7
Subsequent revisions of the Dust Management Plan required by Condition B6 must include: (a) a preventative management system for dust control; (b) a Trigger Action Response Program; (c) site background (contextual information); (d) proposed works and potential impacts and impact analysis; (e) a risk assessment of mining activities; (f) design of an internal operational monitoring program including objectives, separate from any compliance monitoring or limits/levels required by Condition B2; (g) performance criteria and monitoring methods; (h) number and location of monitoring sites; (i) quality assurance/quality control (QA/QC) requirements; (j) stakeholder consultation; (k) roles and responsibilities; and (l) reporting. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- B8
The holder of this environmental authority must monitor air quality for the activity, which must include, but not be limited to: (a) continuous monitoring of PM10 at one location and dust deposition at four (4) locations (representative of the worst affected receptors) during the operation of the activity; (b) meteorological monitoring (including at least temperature, wind speed and direction) at a single location representative of the approved place; (c) the monitoring locations must comply with the Australian Standard AS/NZS 3580.1.1:2016 "Methods for siting and analysis of ambient air. Part 1.1: Guide to siting air monitoring equipment"; (d) regular reporting of the measured dust deposition rates and PM10 concentrations; and (e) investigation of all measured exceedances to determine the influence of emissions from the mining site.
- B9
To ensure that the air quality monitoring program remains effective and well-targeted through the life of the project, the monitoring locations must be reviewed annually. The annual review should consider: (a) the frequency and cause of any exceedances of air quality objectives measured by the monitoring program over a period of at least two (2) years; (b) dust complaints; (c) future progression of the mining activity; (d) locations of sensitive receptors relative to the mining activity; and (e) mining activity modes. Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE C: WASTE Condition Condition Number
- C1
Tailings Management Plan A Tailings Management Plan must be developed by 30 January 2023 and implemented for the duration of mining activities.
- C2
All tailings must be managed in accordance with procedures contained within the Tailings Management Plan. This plan must include details of: (a) the containment of tailings; (b) the management of seepage and leachates both during operation and the foreseeable future; (c) the control of fugitive emissions to air; (d) a program of progressive sampling and characterisation to identify acid producing potential and metal concentrations of tailings; (e) maintaining records of the relative locations of any other waste stored within the tailings; and (f) monitoring to verify methods for tailings, including the prevention and management of acid mine drainage, erosion minimisation and establishment of vegetation cover are effective.
- C3
Waste Rock and Coal Reject Management Plan A Waste Rock and Coal Reject Management Plan must be developed by 30 January 2023 and implemented for the duration of mining activities.
- C4
The Waste Rock and Coal Reject Management Plan required by Condition C3 must include at least: (a) effective characterisation of the waste rock and coal rejects 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 characterisation to identify dispersive and non- dispersive spoil and the salinity, acid and alkali producing potential and metal concentrations of waste rock; (c) a materials balance and disposal plan demonstrating how potentially acid forming and acid forming waste rock, and coal rejects will be selectively placed and/or encapsulated to minimise the potential generation of acid mine drainage or contaminated leachate; (d) where relevant, a sampling program to verify encapsulation and/or placement of potentially acid-forming waste rock and coal rejects; (e) how often the performance of the plan will be assessed; and (f) the indicators or other criteria on which the performance of the plan will be assessed.
- C5
Storage of tyres Tyres must be stored and disposed of in accordance with the Operational policy - Disposal and available. Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE D: NOISE Condition Condition Number
- D1
Noise resulting from the mining activity must not cause an environmental nuisance at any sensitive or commercial place.
- D2
When requested by the administering authority, or as a result of a complaint (which is neither frivolous nor vexatious nor based on mistaken belief in the opinion of the administering authority) noise monitoring must be undertaken and the results must be notified within fourteen (14) days to the administering authority following completion of monitoring.
- D3
Subject to Condition D2, monitoring must be carried out at a place or places relevant to the potentially affected noise sensitive place as agreed upon with the administering authority.
- D4
All noise monitoring which is conducted as per Condition D2 must be completed in accordance with the following noise monitoring requirements: (a) all noise monitoring must be conducted in accordance with the administering authority's most recent version of the Noise Measurement Manual; (b) source noise levels must be expressed as component noise levels for the purposes of comparison with noise limits; and (c) all noise monitoring devices must be calibrated in accordance with AS IEC 61672.1-2004.
- D5
If the administering authority request for noise monitoring is in relation to a complaint and results exceed the limits in Table D1: Noise limits, then the holder of this environmental authority must: (a) address the complaint including the use of appropriate dispute resolution if required; and (b) implement noise abatement measures so that emissions of noise from the activity do not result in further environmental nuisance.
- D6
Low frequency noise Noise emissions from the activity, when including substantial low frequency noise, must not cause an overall sound pressure level at a noise sensitive place exceeding 55 dB(Z).
- D7
The holder of this environmental authority must develop and implement a blast monitoring program to monitor compliance with Table D2: Blasting noise limits for: (a) at least 50% of all blasts undertaken on this site in each month at the nearest sensitive place; and (b) all blasts conducted during any time period specified by the administering authority at the nearest and most affected sensitive place(s) or commercial place(s) or another such place to investigate an allegation of environmental nuisance caused by blasting.
- D8
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: Blasting noise limits to be exceeded at a sensitive place or commercial place. Permit Environmental Authority EA0001976 Olive Downs Coal Mine Table D1: Noise Limits Noise measured at a sensitive or commercial place Noise level Monday to Saturday Sunday and Public Holidays dB(A) measured as: 7am - 6pm 6pm - 10pm 10pm - 7am 9am - 6pm 6pm - 10pm 10pm - 9am LAeq, adj, 15 mins
- E1
The holder of this environmental authority must not release contaminants to groundwater.
- E2
Groundwater Monitoring Program The holder of this environmental authority must develop a groundwater monitoring program by 30 June 2021 and implement the program for the duration of mining activities.
- E3
The groundwater monitoring program must: (a) be in accordance with Table E1: Groundwater monitoring locations and frequency; (b) identify potential sources of contamination to groundwater from the activity; (c) ensure that all potential groundwater impacts due to the activity are identified, monitored and mitigated; (d) document sampling and monitoring methodology; (e) ensure that adequate groundwater monitoring and data analysis is undertaken to achieve the following objectives: (i) establish baseline datasets from existing monitoring bores; (ii) detect any impacts to groundwater levels due to the mining activity; (iii) detect any impacts to groundwater quality due to the mining activity; (iv) determine trends in groundwater quality; and (v) determine trends in groundwater level; (f) before commencing mining activities in ML700033 and ML700034 the holder of this environmental authority must demonstrate that drawdown associated with existing mining activities has not influenced that area; (g) include an appropriate quality assurance and quality control program; (h) include a conceptual numerical groundwater model; and (i) include a review process to improve the program.
- E4
The replacement bores identified in Table E1: Groundwater monitoring locations and frequency must be installed by 26 April 2024, or unless otherwise agreed to by the administering authority. The administering authority must be notified of the installation of the bores within seven (7) days. If the bores are not installed by 26 April 2024, the administering authority must be notified by 7 May 2024.
- E5
Replacement bores GW01d, GW08d and GW12d identified in Table E1: Groundwater monitoring locations and frequency must be replaced with at least two (2) standpipe bores at each bore location that target the Rewan Formation and a target coal seam of the Rangal Coal Measures where the coal seam is less than 250 metres deep. Where the coal seam is greater than 250m deep, the holder of this environmental authority must provide to the administering authority, the location of bores that will target the coal seams by 7 May 2024.
- E6
Bores identified in Table E1: Groundwater monitoring locations and frequency as being within ML700033 or ML700034 must be installed at least twenty-four (24) months prior to the commencement of mining on the relevant tenure. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- E7
Prior to the commencement of mining on ML700033 and ML700034, twenty-four (24) months of monitoring data (minimum of eighteen (18) samples) must be collected for each bore within ML700033 and ML700034 identified in Table E1: Groundwater monitoring locations and frequency.
- E8
The administering authority must be notified within seven (7) days of the first sample being taken from any bore within ML700033 or ML700034 following the commencement of this condition (26 February 2024).
- E9
By 26 February 2025, the holder of this environmental authority must provide to the administering authority a report, for the replacement bores for which at least six (6) samples have been obtained, providing an assessment of the: (a) site-specific groundwater quality limits for inclusion in Table E2: Groundwater Quality Limits; and (b) site-specific groundwater level triggers for inclusion in Table E3: Groundwater Level Monitoring.
- E10
Following the collection of twenty-four (24) months of monitoring data (minimum of 18 samples) from any groundwater monitoring bore mentioned in condition E4 and condition E6, the holder of this environmental authority must provide the administering authority with a report within three (3) months, providing an assessment of the: (a) site-specific groundwater quality limits for inclusion in Table E2: Groundwater Quality Limits; and (b) site-specific groundwater level triggers for inclusion in Table E3: Groundwater Level Monitoring.
- E11
Groundwater quality Other than for groundwater monitoring bores mentioned in condition E4 and condition E6, groundwater quality must be monitored at the locations and frequencies defined in Table E1: Groundwater monitoring locations and frequency, for quality characteristics identified in Table
- E2
Groundwater Quality Limits.
- E12
Groundwater quality measured at monitoring bores identified in Table E1: Groundwater monitoring locations and frequency must not exceed the limit for each quality characteristic specified in Table E2: Groundwater quality limits on any three (3) consecutive sampling occasions.
- E13
If groundwater quality measured at any monitoring bore exceeds the corresponding limit specified in Table E2: Groundwater quality limits on any single sampling occasion, the holder of this environmental authority must resample the underground water within the monitoring bore for the parameter exceeded within ten (10) business days of receipt of the results. Whether the results of the resampling event exceeds for the same parameter or not, a further resample is not required for that sampling occasion. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- E14
In the event that groundwater quality exceedance results are confirmed by resampling, as specified in Condition E13, the holder of this environmental authority must: (a) notify the administering authority via WaTERS within fourteen (14) days of receiving the resampling result; and (b) within three (3) months of receiving the result, complete, and submit via WaTERS, an investigation undertaken by a suitably qualified person outlining: (i) details of the investigations carried out; (ii) whether the result is directly associated with mining activities, and, if so; (iii) whether environmental harm has occurred; and (iv) any action required to mitigate environmental harm.
- E15
Groundwater levels Groundwater levels when measured at the monitoring locations and frequency specified in Table
- E3
Groundwater Level Monitoring must not exceed the groundwater level trigger thresholds specified in Table E3: Groundwater Level Monitoring, unless otherwise agreed in writing with the administering authority.
- E16
In the event that groundwater fluctuations in excess of groundwater level trigger thresholds specified in Table E3: Groundwater Level Monitoring are detected, the holder of this environmental authority must: (a) notify the administering authority via WaTERS within twenty-four (24) hours; and (b) undertake an investigation within fourteen (14) days of detection to determine the cause of fluctuations.
- E17
In the event that groundwater fluctuations are deemed to have been influenced by mining activities the holder of this environmental authority must meet the notification requirement of Condition E16 of this environmental authority.
- E18
The exceedance investigation under Condition E16 must be completed and submitted to the administering authority via WaTERS within three (3) months of notifying the administering authority.
- E19
Groundwater monitoring Results of groundwater quality and level monitoring must be submitted to the administering authority via WaTERS by 1 April each calendar year.
- E20
The groundwater monitoring program must be reviewed by 1 April each year by an appropriately qualified person to determine if it continues to meet the requirements stated in Condition E3.
- E21
The groundwater numerical model must be reviewed and validated (including boundary and recharge conditions) to incorporate groundwater monitoring data and measured mine dewatering volumes from the groundwater monitoring program in Condition E3. The review must be conducted within two (2) years of commencement of any mining activities and at least every five (5) years thereafter, or at other intervals specified by the administering authority in writing. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- E22
Bore construction and maintenance and decommissioning The construction, maintenance, management and decommissioning of groundwater bores (including groundwater monitoring bores) must be undertaken in a manner that prevents or minimises impacts to the environment and ensures the integrity of the bores to obtain accurate and reliable data collection.
- E23
Where the removal of a bore will result as a direct result of the mining activity, the impact on the monitoring program must be evaluated and a replacement bore constructed prior to its removal for continuity and to ensure that groundwater monitoring continues to meet the requirements in Condition E3.
- E24
Groundwater Dependent Ecosystems and Wetland Monitoring Program The proponent must develop and implement a Groundwater Dependent Ecosystems and Wetland Monitoring Program (GDEWMP) to detail the management of threats to defined environmental values and to report results and corrective actions for each GDE and wetland over the full period of mining activities and for a period of five years post mining rehabilitation.
- E25
The GDEWMP must be submitted to the administering authority within thirty (30) days of receiving approval of the Groundwater Dependent Ecosystems Management Plan from the Department of Agriculture, Water and the Environment.
- E26
The GDEWMP must include detailed information of: (a) the nature and ecological values of each affected GDE and wetland; (b) the nature and ecological values of GDEs and wetlands of comparable reference sites that are not affected by project activities or the drawdown from groundwater; (c) a field validation survey and baseline description of the current condition of affected GDEs and wetlands as well as reference sites, including wet and dry conditions, to record pre- impact ecosystem health; (d) a map and coordinates of the location of the GDEs and wetlands subject to the monitoring program, including justification for the selected locations; (e) sampling and reporting frequency; (f) sampling, analysis and quality assurance methodologies for detecting impacts associated with the project including information on how cumulative impacts will be managed and monitored; (g) indicators that would be monitored to assess the health and integrity of the wetlands and GDEs being monitored and that can show the success of proposed mitigation measures; (h) impact thresholds and triggers for groundwater quality and ecological values of GDEs and wetlands that are able to provide an indication of potential and actual impacts within a relevant timescale; and (i) corrective actions and timing to address impacts associated with mining activities, including cumulative impacts. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- E27
A report of the findings of the GDEWMP, including all monitoring results and interpretations, must be prepared by 31 January each year (for the preceding year) and made available on request to the administering authority. The report must include: (a) an assessment of baseline groundwater levels; (b) the condition of each GDE and wetland compared with previous monitoring results; (c) any exceedances of impact thresholds and triggers for groundwater quality and ecological values; (d) the suitability of current groundwater level trigger thresholds; (e) detail on the effectiveness of avoidance, mitigation and management actions in curtailing adverse impacts on GDE ecosystems; (f) a description of any adaptive management initiatives implemented; and (g) any offsets required for residual impacts.
- E28
Monitoring and sampling must be carried out in accordance with the requirements of the latest version of the Queensland Government's 'Monitoring and Sampling Manual 2018 - Environmental Protection (Water) Policy 2009', unless otherwise approved by the administering authority. Table E1: Groundwater Monitoring Locations and Frequency Monitoring Latitude# Longitude# Surface RL Monitoring Screen Target aquifer point (GDA2020) (GDA2020) (mAHD)1 frequency depth (mbgl) GW01d-R^# -22.171957 148.381907 181.58 D 100 Rewan GW04s-R# -22.194713 148.390961 TBA D/Q 6-15 Alluvium GW04d-R^# -22.195684 148.390871 178 D 100 Rewan GW06d-R^# -22.250420 148.336490 TBA D TBA Fort Cooper Coal Seam GW06s-R# -22.249888 148.336548 TBA D/Q TBA Regolith GW08d-R^# -22.240769 148.410068 172.18 D/Q 100 Rewan GW08s -22.240832 148.410068 172.27 D/Q 6-12 Alluvium S2-R# -22.16933 148.370725 TBA D/Q TBA Alluvium S4/5-R# -22.174267 148.378342 TBA D/Q TBA Alluvium
- GW23
-22.2662755 148.425685 169.09 D/Q TBA TBA
- GW24
-22.2950609 148.441069 166.00 D/Q TBA TBA
- GW27
-22.2846328 148.353093 178.00 D/Q TBA TBA
- GW28
-22.2968869 148.391362 172.01 D/Q TBA TBA Bores located on ML700034 GW21d -22.403602 148.569770 162.09 D/Q 148-157 Rangal Interburden (Permian) GW21s -22.403593 148.569819 162.07 D/Q 3-9 Regolith
- GW29
-22.3321256 148.567891 TBA TBA TBA TBA
- GW31
-22.3774639 148.518191 TBA TBA TBA TBA
- GW32
-22.3410680 148.520900 TBA TBA TBA TBA Notes: ^Standing water level (SWL) standpipes #Replacement bores 2 RL must be measured to the nearest 5cm from the top of the bore casing. D = Daily monitoring frequency using automatic logger. (Parameters include: water level, temperature, EC) Q = Quarterly monitoring frequency (i.e. dipped (SWL) and sampled). (Parameters include: pH, EC, Al, As, B, Cd, Cr, Cu, Hg, Pb, Mo, Ni, Se, U, Zn) D/Q = Daily monitoring frequency (SWL and temperature) using automatic logger and manually dipped (SWL) and sampled on a quarterly basis. Permit Environmental Authority EA0001976 Olive Downs Coal Mine Table E2: Groundwater Quality Limits Groundwater bores Quality Unit Alluvium HSU Permian HSU Regolith HSU characteristic pH units S8 GW04s-R# S8-D# S2-R# S4/5-R# S11 GW22-R GW08s GW21d GW12s GW21s GW06s-R# pH -S/cm 4.0-8.2 1.575E 9862 6.0-7.5A 6.0-7.5A 6.0-7.5A EC mg/L 0.474 Al 8910B 31104 28365 8910B 28320F As -g/L 0.43 0.055D 0.055D 0.055D B 0.013D 0.013D Cd 0.0036 0.74E 0.013D Cr 0.0002D 0.47 Cu 0.0417 0.001D 0.0002D 1.69 1.6825F Pb 0.0005D Hg 0.69E 0.005 0.0003 0.0002D Mo 0.06B 0.0034D 0.0014D Ni 0.0006D 0.0034D 0.012 0.001D 0.01125F Se 0.034D 0.0006D U 0.034D 0.7 0.03C 0.296616F Zn 0.0392E TRH c6-c9 0.05E 0.014 0.0034D 0.011D 0.034E 0.01G 0.0006D 0.07925E 0.015 20 0.034D 100 20 100 0.033 0.2G 0.0441F 0.03 0.011D 0.025D 0.01G 0.01F 0.06B 0.05175F 20 100 Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- GW27
TBA -22.169836 148.361059 -22.266275 148.425685 -22.295060 148.441069 -22.284632 148.353093
- GW29
-22.332125 148.567891 TBA
- GW31
-22.377463 148.518191 TBA
- GW32
-22.341068 148.520900 TBA GW21s -22.403593 148.569819 TBA GW21d -22.403602 148.569770 TBA GW01d-R#^ -22.171957 148.381907 TBA GW04s-R# -22.194713 148.390961 TBA GW04d-R#^ -22.195684 148.390871 TBA GW06d-R#^ -22.249888 148.336548 TBA GW06s-R# -22.249888 148.336548 TBA GW08d-R#^ -22.240769 148.410068 TBA GW12d-R^ -22.304768 148.372548 TBA S8-D# -22.182714 148.380802 TBA S2-R# -22.16933 148.370725 TBA S4/5-R# -22.174267 148.378342 TBA Notes: ^Standing water level (SWL) standpipes #Replacement bores. Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE F: WATER Condition Condition Number
- F1
Contaminant release Contaminants must not be released directly or indirectly to any waters as a result of the mining activities, except as permitted under the conditions of Schedule F Water of this environmental authority.
- F2
The release of mine affected water to waters must only occur from the release points specified in Table F1: Mine affected water release points, sources and receiving waters as depicted in Figure 4: Mine affected water release points, sources and receiving waters. The holder of this environmental authority must advise the administering authority of the location of mine affected water release points, sources and receiving waters at least twelve (12) months prior to the commencement of releasing mine affected water from locations other than those listed in Table F1: Mine affected water release points, sources and receiving waters.
- F3
The release of mine affected water to waters in accordance with Condition F2 must not exceed the release limits stated in Table F2: Mine affected water release limits when measured at the monitoring points specified in Table F1: Mine affected water release points, sources and receiving waters for each quality characteristic.
- F4
The release of mine affected water to waters from the release points must be monitored at the locations specified in Table F1: Mine affected water release points, sources and receiving waters as depicted in Figure 4: Mine affected water release points, sources and receiving waters for each quality characteristic and at the frequency specified in Table
- F2
Mine affected water release limits and Table F3: Release contaminant trigger investigation levels. Note: The administering authority will take into consideration any extenuating circumstances prior to determining an appropriate enforcement response, in the event Condition F4 is contravened due to a temporary lack of safe or practical access. The administering authority expects the holder of this environmental authority to take all reasonable and practicable measures to maintain safe and practical access to designated monitoring locations. Table F1: Mine Affected Water Release Points, Sources and Receiving Waters Release point Latitude Longitude Mine affected water Monitoring Receiving waters description
- F5
If quality characteristics of the release exceed any of the trigger levels specified in Table F3: Release contaminant trigger investigation levels, the holder of this environmental authority must compare the downstream results in the receiving waters to the trigger values specified in Table F3: Release contaminant trigger investigation levels and: (a) where the trigger values are not exceeded then no action is to be taken; or (b) where the downstream results exceed the trigger values specified in Table F3: Release contaminant trigger investigation levels for any quality characteristic, compare the results of the downstream site to the data from background monitoring sites, and: (i) if the result is less than the background monitoring site data, then no action is to be taken; or (ii) if the result is greater than the background monitoring site data, complete an investigation into the potential for environmental harm and provide a written report to the administering authority within three (3) months of receiving the result, outlining: (i) details of the investigations carried out; and (ii) actions taken to prevent environmental harm. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with Condition F5 (b)(ii), no further reporting is required for subsequent trigger events for that quality characteristic.
- F6
If an exceedance in accordance with Condition F5 (b)(ii) is identified, the holder of this environmental authority must notify the administering authority via WaTERS within fourteen (14) days of receiving the result.
- F7
Mine affected water release events The holder of this environmental authority must ensure stream flow is determined at the locations specified in Table F4: Mine affected water release during flow events prior to and during releases.
- F8
In the event that the data from the 130410A Isaac River at Deverill becomes unavailable, the holder of this environmental authority must ensure that a new stream flow gauging station(s) is installed, operated and maintained to determine and record stream flows prior to and during releases.
- F9
The release of mine affected water to waters in accordance with Condition F2 must only take place during periods of natural flow events in accordance with the receiving water flow criteria for discharge specified in Table F4: Mine affected water release during flow events for the release point(s) specified in Table F1: Mine affected water release points, sources and receiving waters.
- F10
The release of mine affected water to waters in accordance with Condition F2 must not exceed the electrical conductivity, sulfate release limits or the maximum release rate (for all combined release point flows) for each receiving water flow criteria for discharge specified in Table F4: Mine affected water release during flow events when measured at the monitoring points specified in Table F1: Mine affected water release points, sources and receiving waters. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- F11
A report proposing site-specific sulfate release limits for each flow criteria in Table F4: Mine Affected Water Release during Flow Events must be submitted to the administering authority for approval and inclusion in the environmental authority once sufficient data has been obtained at each flow rate to determine appropriate sulfate limits. Permit Environmental Authority EA0001976 Olive Downs Coal Mine Table F4: Mine Affected Water Release during Flow Events Receiving Release Gauging Gauging Gauging Receiving Receiving water flow criteria for Maximum Electrical water flow discharge (m3/s) water points station station station release rate conductivity and (RP) Latitude Longitude recording (for all sulfate release (GDA2020) (GDA2020) frequency combined RP limits flows) Isaac River RP1 130410A -22.164296 148.350830 Continuous Medium Flow after natural flow 0.5 m3/s 1,000 -S/cm
- F12
The daily quantity of mine affected water released from each release point must be measured and recorded.
- F13
All continuous environmental monitoring systems required by this environmental authority must have an instrument availability of at least 80% except for the continuous monitoring of release points specified in Table F1: Mine affected water release points, sources and receiving waters which must have an instrument availability of at least 90%.
- F14
Releases to waters must be undertaken so as not to cause erosion of the bed and banks of the receiving waters or cause a material build-up of sediment in such waters.
- F15
Notification of release event The holder of this environmental authority must notify the administering authority as soon as practicable and no later than twenty-four (24) hours, via WaTERS, after commencing to release mine affected water to the receiving environment. Notification must include the submission of written advice to the administering authority of the following information: (a) release commencement date/time; (b) expected release cessation date/time; (c) release point(s); (d) release volume (estimated); (e) receiving water(s) including the natural flow rate; and (f) any details (including available data) regarding likely impacts on the receiving water(s).
- F16
The holder of this environmental authority must notify the administering authority, via WaTERS, as soon as practicable and within twenty-four (24) hours after cessation of a release notified under Condition F15. The cessation notification must include the following information: (a) release cessation date/time; (b) release points; (c) release rates; (d) water quality of release; (e) total volume of water released; (f) natural flow rate in the receiving water; and (g) details regarding the compliance of the release with the conditions of Schedule F Water of this environmental authority. Note: Successive or intermittent releases occurring within twenty-four (24) hours of the cessation of any individual release can be considered part of a single release event and do not require individual notification for the purpose of compliance with Conditions F14, F15 and F16, provided the relevant details of the release are included within the notification provided in accordance with Conditions F14,
- F17
The holder of this environmental authority must within twenty-eight (28) days after cessation of a release event notified under Condition F16 provide a report and supporting raw data to the administering authority via WaTERS, which must include the following information: (a) all continuous and in-situ water quality monitoring results (including laboratory analyses); and (b) any further matters pertinent to the water release event. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- F18
Notification of release event exceedance If the release limits defined in Table F2: Mine affected water release limits, when measured at the monitoring points in Table F1: Mine Affected Water Release Points, Sources and Receiving Waters, are exceeded, the holder of this environmental authority must notify the administering authority, via WaTERS, within twenty-four (24) hours of receiving the results.
- F19
The holder of this environmental authority must, within twenty-eight (28) days of a release that exceeds the conditions of this authority, provide a report to the administering authority, via WaTERS, detailing: (a) the reason for the release; (b) the location of the release; (c) all water quality monitoring results; (d) any general observations; (e) all calculations; and (f) any other matters pertinent to the water release event.
- F20
Receiving environment monitoring and contaminant trigger levels The quality of the receiving waters must be monitored at the locations specified in Table F6: Receiving Water Upstream Background Sites and Downstream Monitoring Points for each quality characteristic and at the monitoring frequency stated in Table F5: Receiving Waters Contaminant Trigger Levels.
- F21
A report proposing site-specific trigger levels for total suspended solids and turbidity in Table F5: Receiving Waters Contaminant Trigger Levels must be submitted to the administering authority for approval and inclusion in the environmental authority once sufficient data has been obtained for total suspended solids and turbidity to determine appropriate trigger levels. Table F5: Receiving Waters Contaminant Trigger Levels Quality characteristic Trigger level Monitoring frequency Electrical conductivity (-S/cm) 2,000 Continuous (minimum hourly average); or pH 6.5 - 9.0 daily manual sample when Total suspended solids (mg/L) - Base flow (<4.7m3/s): <320 continuous monitoring systems are Turbidity (NTU) - Event flow (>4.7m3/s): <380 not available Sulfate (SO42-) (mg/L) - Base flow (<4.7m3/s): <270 - Event flow (>4.7m3/s): <590 Daily manual sample during the 545 release Permit Environmental Authority EA0001976 Olive Downs Coal Mine Table F6: Receiving Water Upstream Background Sites and Downstream Monitoring Points Monitoring points Receiving waters Latitude Longitude location description (GDA2020) (GDA2020) Upstream background monitoring points Monitoring point at Isaac River - upstream of -22.164296 148.350830 Gauge No. 130410A RP1 and RP2 `Deverill', Isaac River
- F22
If quality characteristics of the receiving water at the downstream monitoring points exceed any of the trigger levels specified in Table F5: Receiving Waters Contaminant Trigger Levels during a release event the holder of this environmental authority must compare the downstream results to the upstream results in the receiving waters and: (a) where the downstream result is the same or a lower value than the upstream value for the quality characteristic, then no action is to be taken; or (b) where the downstream results exceed the upstream results, complete an investigation into the potential for environmental harm and provide a written report to the administering authority in the next annual return, outlining: (i) details of the investigations carried out; and (ii) actions taken to prevent environmental harm. Note: Where an exceedance of a trigger level has occurred and is being investigated, in accordance with Condition F22(b), no further reporting is required for subsequent trigger events for that quality characteristic.
- F23
All determinations of water quality monitoring must be: (a) made in accordance with the methods prescribed in the latest edition of the administering authority's Water Quality Sampling Manual; and (b) laboratory testing must be undertaken using a laboratory accredited for the method of analysis being used.
- F24
Receiving environment monitoring program (REMP) The holder of this environmental authority must develop and implement a REMP to monitor, identify and describe any adverse impacts to surface water environmental values, quality and flows due to the authorised mining activity by 30 June 2021. This must include monitoring the effects of the mine on the receiving environment periodically (under natural flow conditions) and while mine affected water is being discharged from the site. For the purposes of the REMP, the receiving environment is the waters of the Isaac River and connected or surrounding waterways within 15 km downstream of the release points. The REMP should encompass any sensitive receiving waters or environmental values downstream of the authorised mining activity that will potentially be directly affected by an authorised release of mine affected water. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- F25
The REMP must: (a) assess the condition or state of receiving waters, including upstream conditions, spatially within the REMP area, considering background water quality characteristics based on accurate and reliable monitoring data that takes into consideration temporal variation (e.g. seasonality); (b) description of applicable environmental values and water quality objectives to be achieved (i.e. as scheduled pursuant to the Environmental Protection (Water and Wetland Biodiversity) Policy 2019); (c) be designed to facilitate assessment against water quality objectives for the relevant environmental values that need to be protected; (d) include monitoring from background reference sites (e.g. upstream or background) and downstream sites from the release (as a minimum, the locations specified in Table F6: Receiving Water Upstream Background Sites and Downstream Monitoring Points); (e) specify the frequency and timing of sampling required in order to reliably assess ambient conditions and to provide sufficient data to derive site specific background reference values in accordance with the Queensland Water Quality Guidelines 2009. This should include monitoring during periods of natural flow irrespective of mine or other discharges; (f) include monitoring and assessment of dissolved oxygen saturation, temperature and all water quality parameters listed in Table F2: Mine Affected Water Release Limits and Table F3: Release contaminant trigger investigation levels; (g) include, where appropriate, monitoring of metals/metalloids in sediments (in accordance with ANZECC & ARMCANZ 2000, BATLEY and/or the most recent version of AS5667.1 Guidance on Sampling of Bottom Sediments) and include a comparison with trigger values determined in accordance with these methods; (h) include, where appropriate, monitoring of macroinvertebrates in accordance with the AusRivas methodology and comparison with the EPP (Water) Fitzroy Basin macroinvertebrate water quality objective triggers (including taxa richness, PET taxa richness, SIGNAL index and % tolerant taxa); (i) apply procedures and/or guidelines from ANZECC and ARMCANZ 2000 and other relevant guideline documents; (j) describe sampling and analysis methods and quality assurance and control; and (k) incorporate stream flow and hydrological information in the interpretations of water quality and biological data. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- F26
A report outlining the findings of the REMP, including all monitoring results and interpretations in accordance with Conditions F24 and F25, must be prepared annually and submitted to the administrating authority by 31 January for the previous year. 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. Where no releases are made from the release points in any given year (1 November to 31 October), a summary report of the findings of the REMP must be prepared and submitted to the administering authority. The summary report must include the following: (a) introduction; (b) rainfall data; (c) water course flow data; and (d) water course electrical conductivity.
- F27
Conditions F24 to F26 (inclusive) do not apply if the environmental authority holder is a participant of the FRREMP.
- F28
The environmental authority holder must notify the administering authority in a written statement within 20 business days of ceasing to be a participant of the FRREMP. The written statement must detail how the environmental authority holder is going to fulfil the requirements of Conditions F24 to F26 (inclusive).
- F29
Water reuse Mine affected water released for the purpose of reuse by a third party, at locations other than those stated in Condition F2 must: (a) be released through mine water infrastructure that is installed and operated in accordance with Condition F31; and (b) have the written consent from the third party for the release of mine affected water.
- F30
Annual water monitoring data submission The following information must be recorded in relation to all water monitoring required under the conditions of Schedules E, F and G of this environmental authority and submitted to the administering authority via WaTERS: (a) the date on which the sample was taken; (b) the time at which the sample was taken; (c) the monitoring point at which the sample was taken; (d) the measured or estimated daily quantity of mine affected water released from all release points; (e) the release flow rate at the time of sampling for each release point; and (f) the results of all monitoring and details of any exceedances of the conditions in Schedules E, F and G of this environmental authority.
- F31
Water Management Plan A Water Management Plan must be developed by 30 June 2021 and implemented for the duration of pre-development activities and mining activities. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- F32
The Water Management Plan must: (a) provide for effective water management of actual and potential environmental impacts resulting from water management associated with the mining activities carried out under this environmental authority; and (b) be developed in accordance with the administering authority's most recent version of the guideline for `Preparation of water management plans for mining activities' (EM324) or any updates that become available from time to time and must include at least the following components: (i) study of the source on contaminants; (ii) a water balance model for the site; (iii) details of catchment areas and environmental values; (iv) a water management system for the site; (v) details of locations and design standard of water management infrastructure; (vi) measures to manage and prevent saline drainage; (vii) measures to manage and prevent acid rock; (viii) contingency procedures for incidents and emergencies; and (ix) a program for monitoring and review of the effectiveness of the water management plan.
- F33
A written review of the Water Management Plan must be undertaken by 1 August each calendar year. The review must: (a) include a statement that the Water Management Plan has been prepared by an appropriately qualified person; (b) assess the plan against the requirements under ConditionF32; (c) include recommended actions to ensure actual and potential environmental impacts are effectively managed; (d) provide details and timelines of the actions to be taken; and (e) identify any amendments made to the Water Management Plan.
- F34
A copy of the Water Management Plan must be provided to the administering authority on request.
- F35
Stormwater and water sediment controls An Erosion and Sediment Control Plan must be developed by 30 June 2021 and implemented for the duration of pre-development activities and mining activities on site, to minimise erosion and the release of sediment to receiving waters and contamination of stormwater. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- F36
The Erosion and Sediment Control (ESC) Plan must: (a) demonstrate how ESC control measures adequately minimise the release of sediment to receiving waters and must include at least the following: (i) assessment of all catchment areas; (ii) assessment of soil types, including sodic dispersive soils; and (iii) specify design criteria for ESC structures; (b) detail the locations and descriptions of all ESC measures; and (c) provide an audit schedule to ensure ESC controls are being maintained.
- F37
A written review of the Erosion and Sediment Control Plan must be undertaken by 1 August for each calendar year. The review must: (a) include a statement that the Erosion and Sediment Control Plan has been prepared by an appropriately qualified person; (b) assess the plan against the requirements under ConditionF36; (c) include recommended actions to ensure actual and potential environmental impacts are effectively managed; (d) provide details and timelines of the actions to be taken; and (e) identify any amendments made to the Erosion and Sediment Control Plan.
- F38
A copy of the Erosion and Sediment Control Plan must be provided to the administering authority on request.
- F39
Stormwater, other than mine affected water, is permitted to be released to waters from: (a) erosion and sediment control structures that are installed and operated in accordance with the Erosion and Sediment Control Plan required by Conditions F35 toF38; and (b) water management infrastructure that is installed and operated, in accordance with a Water Management Plan that complies with Conditions F31 to F34, for the purpose of ensuring water does not become mine affected water.
- F40
Monitoring of Water Storage Quality Water storages must be monitored at the locations and frequency specified in Table F7: Water storage monitoring for the water quality characteristics specified in Table F2: Mine Affected Water Release Limits, and Table F3: Release Contaminant Trigger Investigation Levels, following construction of the water storage. Table F7: Water Storage Monitoring Water storage Latitude Longitude Monitoring location Monitoring description (GDA2020) (GDA2020) frequency
- P9
-22.180893 148.378217 Adjacent to release point pipe Quarterly Adjacent to release point pipe
- P20
-22.207487 148.390030 Adjacent to release point pipe Quarterly
- P33
-22.248724 148.402340 Adjacent to release point pipe Quarterly
- P46
-22.260291 148.411143 Adjacent to release point pipe Quarterly WROM -22.340264 148.502564 Quarterly Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE G: SEWAGE TREATMENT Condition Condition Number
- G1
The only contaminant permitted to be released to land is treated sewage in compliance with the release limits stated in Table G1: Contaminant release limits to land and the following requirements: (a) the irrigation areas must be in accordance with Figure 2: Locations of sewage treatment disposal areas; (b) monitoring must be in accordance with the administering authority's Water Quality Sampling Manual and all monitoring devices must be effectively calibrated and maintained; (c) releases of treated sewage must not be outside of the treated sewage areas indicated on Figure 2: Locations of sewage treatment disposal areas; (d) monitoring must be undertaken when treated sewage is being irrigated, unless irrigation has ceased for longer than the relevant parameters specified minimum frequency; and (e) volume of release must be calculated based on the total irrigation area when irrigating the maximum volume or worked out for the area of application based on the actual volume irrigated; (f) the daily volume of sewage treated from STP1 (Olive Downs South) and STP2 (Willunga) must be measured and records kept of the volume of sewage treated; and (g) the daily volume of treated sewage released to land from STP1 (Olive Downs South) and STP2 (Willunga) must be measured and records kept of the volumes of treated sewage released.
- G2
Inflows to on-site sewage treatment plants must not exceed the peak design capacity of three (3) times the Design Average Dry Weather Flow (DADWF) of 340 kL/day on any day unless the standard treatment processes of the plant are bypassed. Table G1: Contaminant Release Limits to Land Release point Quality Minimum Median Maximum Minimum characteristic 6.0 1,000 frequency RP11, RP22 40 Annually RP11, RP22 (units) 50 RP11, RP22 Irrigation volume 16 Monthly (ML) Monthly RP11, RP22 9.0 RP11, RP22 Total nitrogen 1,600 Monthly (mg/L as nitrogen) Monthly RP11, RP22 1,000 RP11, RP22 Total phosphorous 1,500 Monthly (mg/L as Monthly phosphorous) pH (pH units) Electrical conductivity (-S/cm) Total dissolved solids (mg/L) E. coli (cfu/100mL) 1. Release Point 1 = sampling point being released from the enclosed wet weather storage at STP1 (Olive Downs South) 2. Release Point 2 = sampling point being released from the enclosed wet weather storage at STP2 (Willunga) Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- G3
Treated sewage released to land must be done in accordance with the Treated Sewage Irrigation Management Plan as well as carried out in a manner which ensures: (a) drainage to groundwater is minimised and subsurface flows of contaminants to surface waters are prevented; (b) the irrigation water must be distributed evenly across designated irrigation areas identified in Figure 2: Locations of sewage treatment disposal areas; (c) surface pondage and run-off of treated sewage within or beyond the boundary of any designated irrigation area and or areas is prevented; (d) degradation of soil structure is minimised; (e) soil sodicity and the build-up of nutrients and heavy metals in the soil and subsoil are minimised; (f) spray drift or overspray does not carry beyond treated sewage disposal area or areas; (g) treated sewage disposal area and or areas are maintained with an appropriate crop in a viable state for transpiration and nutrient uptake; (h) sufficient buffer zones are maintained between irrigation sites and sensitive environmental receptors; (i) when circumstances prevent the irrigation or beneficial reuse of treated sewage such as during or following rain events, waters must be directed to an enclosed wet weather storage or alternative measures must be taken to store/lawfully dispose of treated sewage; (j) a minimum area of 5.5ha of land, excluding any necessary buffer zones, must be utilised for the irrigation and/or beneficial reuse of treated sewage; (k) the volume provided for the storage of treated sewage is to be not less than 340,000 litres via an enclosed wet weather storage tank or tanks; and (l) all treated sewage irrigation areas must be planted with kikuyu grass or similar pastures.
- G4
Potable water and or alternative irrigation water may be released to the designated irrigation area and or areas identified in Figure 2: Locations of sewage treatment disposal areas, provided it is treated in accordance with all other conditions of this environmental authority as if it were treated sewage.
- G5
If areas irrigated with treated sewage are accessible to employees or the general public, prominent fencing and signage must be provided advising that treated sewage is present and care should be taken to avoid consuming or otherwise coming into unprotected contact with the treated sewage.
- G6
All treated sewage released to land must be monitored at the frequency and for the parameters specified in Table G1: Contaminant release limits to land.
- G7
A receiving environment monitoring program must be designed and implemented to monitor the effects of the activity on soils within irrigation area and or areas. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- G8
The receiving environment monitoring program required by Condition G7 must include, but not necessarily be limited to, the following: (a) soil and sub-soil analysis, including an assessment of the irrigation of treated sewage on the soils from representative locations, including type, structure, pH, phosphorus adsorption level and capacity, nutrient status, salinity and sodicity, and cation exchange capacity of the designated treated wastewater irrigation areas identified in Figure 2: Locations of sewage treatment disposal areas; (b) determination of the quantity and quality of contaminants applied to the soils in the designated treated sewage irrigation area and/or areas identified in Figure 2: Locations of sewage treatment disposal areas; (c) an annual (minimum) assessment of the impact of the releases on the designated treated sewage irrigation area and or areas identified in Figure 2: Locations of sewage treatment disposal areas by an appropriately qualified person; (d) following each assessment undertaken as part of Condition G8(c), an assessment by an appropriately qualified person as to whether the impact(s) of the releases on the designated treated sewage irrigation area and or areas warrant MEDLI remodelling; (e) if MEDLI re-modelling is recommended as per Condition G8(d), a re-assessment including modelling of the water, nutrient and salt balances and irrigation rate and return period to ensure sustainable use of the designated treated sewage irrigation area and or areas identified in Figure 2: Locations of sewage treatment disposal areas; and (f) a report must be provided to the administering authority within twenty (20) business days on completion of the revised MEDLI report referred to in Condition G8(e).
- G9
A Treated Sewage Irrigation Management Plan must be developed and implemented upon commencement of the irrigation of treated sewage.
- G10
The Treated Sewage Irrigation Management Plan referred to in Condition G9 must include, but not be limited to the following: (a) method of irrigation and details on how irrigation hardware is operated and maintained; (b) irrigation scheduling - how irrigation is initiated and terminated; (c) monitoring local climatic conditions for irrigation management; (d) soil monitoring and management; (e) crop monitoring, harvesting and management; (f) contingency plan for unexpected events such as extreme weather conditions or irrigation hardware failures; and (g) wet weather storage overflow management plan.
- G11
Treated sewage must only be supplied to another person or organisation that has a written plan detailing how the user of the treated sewage will comply with their general environmental duty under section 319 of the Environmental Protection Act 1994 whilst using the treated sewage. Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE H: LAND AND REHABILITATION Condition Condition Number
- H1
All land disturbed by pre-development activities and mining activities must be rehabilitated in accordance with: (a) Appendix 3: Rehabilitation Requirements, attached to this environmental authority; and (b) Table H1: Rehabilitation Domains and Post-mining Land Use.
- H2
Only the residual voids shown in Figure 1 a) - Authorised disturbance - Olive Downs South Domain and Figure 1 b) - Authorised disturbance - Willunga Domain and specified in Table
- H2
Residual Void Design are permitted. Table H1 Rehabilitation Domains and Post-mining Land Use Rehabilitation Post mining land use domain Agriculture Native vegetation Fauna habitat Waste rock emplacements Residual voids (low intensity cattle grazing) (woodland) Infrastructure areas Water management infrastructure ILF cells Ripstone Creek diversion
- H3
A Rehabilitation Monitoring Program must be developed and certified by an appropriately qualified person and submitted to the administering authority for consideration prior to commencement of mining activities for Stage 1 mining operations. The monitoring program must contain a schedule for gathering baseline data from agreed reference sites and conducting rehabilitation trials to support the rehabilitation outcomes detailed in Appendix 3 - Rehabilitation Requirements. Baseline monitoring and rehabilitation trials under this plan must be undertaken at a suitable frequency to ensure that the holder of this environmental authority has a representative dataset to enable: (a) Progressive certification of rehabilitation under chapter 5A of the Environmental Protection Act 1994; and (b) Surrender of the Environmental Authority under Chapter 5 of the Environmental Protection Act 1994. A copy of the Rehabilitation Monitoring Program must be made available to the administering authority upon request. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- H4
Residual Voids Residual voids must comply with the following outcomes: (a) residual voids must not cause any serious environmental harm to land, surface waters or any recognised ground water aquifer, other than the environmental harm constituted by the existence of the residual void itself, and subject to any other condition within this environmental authority; (b) be left as stable structures with the competency certified by an appropriately qualified third party (e.g. an engineer listed on the National Professional Engineers Register); (c) be fenced or bunded appropriately to restrict human, stock and other fauna in areas representing a potential hazard; (d) residual voids must comply with Table H2: Residual void design; (e) the environmental authority holder must provide the administering authority a map that shows the aerial extent and topography of final landforms including residual voids. If amendments to the map are required then the environmental authority holder must provide the administering authority with the amended map; (f) five (5) years prior to the establishment of a final void the holder of this environmental authority must submit a Final Void Geotechnical Report prepared by a suitably qualified and experienced professional to the administering authority that includes: (i) proposed slope criteria for pit walls with competent and incompetent rock; and (ii) proposed final surface area of the void; (g) three (3) years prior to the establishment of residual voids the holder of the environment authority must submit to the administering authority a Final Void Water Quality Management Plan that includes: (i) modelling and assessment of the quality of void water between cessation of mining and the post mining equilibrium level; (ii) modelling and assessment of practicable management measures (including flushing) to mitigate salinity increases; and (iii) a monitoring program both during and after mining, to assess the performance of any management measures required; and (h) a report must be provided to the administering authority regarding the effect of the operation and the residual voids on groundwater every three (3) years until surrender of the environmental authority. Table H2: Residual Void Design Void Void Depth to Overall highwall angle Void maximum identification volume waterbody surface area (ha) (Mm3) Cenozoic Weathered/fresh
- H5
Contaminated land Before applying for surrender, including partial surrender, of the environmental authority, the holder must (if applicable) provide to the administering authority a site investigation report under the Environmental Protection Act 1994, 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.
- H6
Before applying for progressive rehabilitation certification for an area, the holder must (if applicable) provide to the administering authority a site investigation report under the Environmental Protection Act 1994, 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 that report to ensure that the land is suitable for its final land use under Condition H1.
- H7
Impacts to Prescribed Environmental Matters Significant residual impacts to prescribed environmental matters are not authorised under this environmental authority or the Environmental Offsets Act 2014 unless the impact(s) is specified in Table H3: Significant residual impacts to prescribed environmental matters and depicted in: Figure 3(a) Location of significant residual impact of Endangered Regional Ecosystem (ERE); Figure 3(b) Location of significant residual impact of Of Concern Regional Ecosystem (RE); Figure 3(c) Location of significant residual impact of Regional ecosystems (not within an urban area) that intersect a wetland on the vegetation management wetlands map; Figure 3(d) Location of significant residual impact of Regional ecosystems (not within an urban area) within the defined distance from the defining banks of a relevant watercourse on the vegetation management watercourse map; Figure 3(e) Location of significant residual impact of Essential habitat (not in an urban area) for vulnerable wildlife; Figure 3(f) Location of significant residual impact of Connectivity area that is a regional ecosystem (not in urban area); Figure 3(g) Location of significant residual impact of A wetland in a wetland protection area shown on the Map of referable wetlands (HES wetlands in GBR); Figure 3(h) Location of significant residual impact of Habitat for Ornamental Snake; Figure 3(i) Location of significant residual impact of Habitat for Koala; Figure 3(j) Location of significant residual impact of Habitat for Greater Gilder; Figure 3(k) Location of significant residual impact of Habitat for Australian Painted Snipe; and Figure 3(l) Location of significant residual impact of Habitat for Squatter Pigeon (southern).
- H8
Records demonstrating that each impact to a prescribed environmental matter not listed in Table H3: Significant residual impacts to prescribed environmental matters 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. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- H9
An environmental offset made in accordance with the Environmental Offsets Act 2014 and Queensland Environmental Offsets Policy, as amended from time to time, must be undertaken for the maximum extent of impact to each prescribed environmental matter authorised in Table H3: Significant residual impacts to prescribed environmental matters, unless a lesser extent of the impact has been approved in accordance with Condition H10 (for staged offsets).
- H10
The significant residual impacts to a prescribed environmental matter authorised in Condition H7 for which an environmental offset is required by Condition H9 may be carried out in stages. An environmental offset can be delivered for each stage of the impacts to prescribed environmental matters.
- H11
Prior to the commencement of each stage, a report completed by an appropriately qualified person, that includes an analysis of the following must be provided to the administering authority: (a) for the forthcoming stage--the estimated significant residual impacts to each prescribed environmental matter; and (b) for the previous stage, if applicable--the actual significant residual impacts to each prescribed environmental matter, to date.
- H12
The report required by Condition H11 must be approved by the administering authority before a notice of election for the forthcoming stage, if applicable, is given to the administering authority.
- H13
A notice of election for the staged environmental offset referred to in Condition H12, if applicable, must be provided to the administering authority no less than three (3) months before the proposed commencement of that stage, unless a lesser timeframe has been agreed to by the administering authority.
- H14
Within six (6) months from the completion of the final stage of the project, a report completed by an appropriately qualified person, that includes the following matters must be provided to the administering authority: (a) an analysis of the actual impacts on prescribed environmental matters resulting from the final stage; and (b) if applicable, a notice of election to address any outstanding offset debits for the authorised impacts.
- H15
Flood Protection Landforms The flood protection landforms must be permanent landforms and must be designed to ensure their suitability as permanent structures including: (a) consideration of predicted flood levels and the erosion potential from flood waters; and (b) consideration of landform stability and erosion risk.
- H16
A design plan for the flood protection landforms must include: (a) drawings describing the location and dimensions of the flood protection landforms, including confirmation that they meet the specified design requirements; and (b) a documented procedure for surveillance of the permanent landform to detect and report to the administering authority any ground movement that compromises or may compromise the integrity of the landforms. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- H17
Design requirements for the flood protection landforms include: (a) the design level of the landform crest shall be 0.5m above the estimated AEP 1 in 1,000 flood event for the adjacent watercourses; (b) mining excavation slopes adjacent to the flood protection landforms must remain stable and are to be designed with a factor of safety of 1.5 or above based on an accepted stability analysis procedure; and (c) incorporate scour protection on the creek side lower embankment.
- H18
The condition of constructed flood protection landforms including the surface area between the non- creek side of the toe of the flood protection landform and the end wall crest of the open-cut mining pit should be monitored for surface cracks and must at a minimum be inspected and assessed by a suitably qualified and experienced person at least once per year between the months of May and October inclusive (i.e. during the 'dry' season and before the onset of the 'wet' season), and at any time if alarming, unusual or otherwise unsatisfactory conditions are observed.
- H19
Remedial works identified as being required for the flood protection landforms during any inspections and assessments conducted, must be notified in writing to the administering authority within five (5) business days of the completion of the inspections, and commenced within twenty (20) business days unless otherwise agreed in writing by the administering authority.
- H20
An annual inspection report must be prepared for the inspection required by condition H18, which must include: (a) certification that the documented procedure for surveillance of the landform has been applied; (b) details about whether there has been any erosion, cracking or vertical or horizontal deformation that has impacted on the integrity of the permanent flood protection landform; and (c) details about whether the permanent flood protection landform has been maintained in accordance with the certified design plan. Permit Environmental Authority EA0001976 Olive Downs Coal Mine Table H3: Significant Residual Impacts to Prescribed Environmental Matters Prescribed Environmental Matter Impacts Endangered regional ecosystem Mine site footprint, consisting of: (ERE) - ERE 11.3.1 Acacia harpophylla and/or Casuarina cristata open forest on alluvial plains - 14ha - ERE 11.4.8 Eucalyptus cambageana woodland to open forest with Acacia harpophylla or A. argyrodendron on Cainozoic clay plains - 4.5ha - ERE 11.4.9 Acacia harpophylla shrubby woodland with Terminalia oblongata on Cainozoic clay plains - 59ha - ERE 11.5.17 Eucalyptus tereticornis woodland in depressions on Cainozoic sand plains and remnant surfaces - 62ha Total: 135ha Of concern regional ecosystem (not - RE 11.3.2 Eucalyptus populnea woodland on alluvial plains - 859.5 within an urban area) - RE 11.3.3 Eucalyptus coolabah woodland on alluvial plains - 5ha - RE 11.3.4 Eucalyptus tereticornis and/or Eucalyptus spp. woodland on alluvial plains - 1ha Total: 865.5ha Regional ecosystems (not within an Mine site footprint urban area) that intersect a wetland Total: 238ha on the vegetation management wetlands map Regional ecosystems (not within an - 11km Ripstone Creek (SO3 = 50m buffer); RE 11.3.25 Eucalyptus
- H21
Weed Management A weed management plan must be developed and implemented for this site outlining: (a) areas of control priority and the methods used to determine such areas; (b) strategies to promote dense grass growth (which out-competes weeds) through reduced disturbance; (c) monitoring methodologies that document the spread of weeds and any new outbreaks; (d) methods for the control of weeds. These methods should include best practice management; stringent wash-down and inspection procedures for both machinery involved in clearing/construction activities and those operating outside of designated roads during mine operation; and (e) promotion of the awareness of weed management issues at the site.
- H22
Exploration Land subject to exploration activities must be rehabilitated in accordance with the Eligibility criteria Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE I: WATERCOURSE DIVERSIONS Condition Condition Number
- I1
Permanent watercourse diversions at Ripstone Creek Permanent watercourse diversions at Ripstone Creek must be designed and constructed to: (a) incorporate natural features (including geomorphic and vegetation) present at the location of the diversion; (b) maintain the pre-existing hydrologic characteristics of surface water and groundwater systems for the area in which the watercourse diversion is located; (c) 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 ongoing maintenance; (d) 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; (e) maintain equilibrium and functionality in all substrate conditions at the location of the diversion; and (f) allow the free passage of fish both upstream and downstream in a safe manner.
- I2
Design plan - all diversions A certified Design Plan that achieves Condition I1 for permanent watercourse diversions must be submitted to the administering authority at least ten (10) business days before commencing construction of the diversion.
- I3
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.
- I4
Construction and operation - all diversions A certified set of `as constructed' drawings and specifications must be submitted to the administering authority within sixty (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; and (b) construction of the watercourse diversion is in accordance with the design plan.
- I5
Register - all diversions 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 this environmental authority. An electronic copy must be provided to the administering authority on request. Permit Environmental Authority EA0001976 Olive Downs Coal Mine SCHEDULE J: REGULATED STRUCTURES Condition Condition Number
- J1
Assessment of consequence category The consequence category of any structure must be assessed by a suitably qualified and experienced person in accordance with the Manual for assessing consequence categories and (a) prior to the design and construction of the structure, if it is not an existing structure; and (b) prior to any change in its purpose or the nature of its stored contents.
- J2
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.
- J3
Certification must be provided by the suitably experienced and qualified person who undertook the assessment, in the form set out in the Manual for assessing consequence categories and hydraulic
- J4
Design and construction of a regulated structure All regulated structures must be designed by, and constructed under the supervision of, a suitably experienced and qualified person in accordance with the requirements of the Manual for assessing
- J5
Construction of a regulated structure is prohibited unless: (a) the holder of this environmental authority has submitted a consequence category assessment report and certification to the administering authority; and (b) certification for the design, design plan and the associated operating procedures have been certified by a suitably experienced and qualified person in compliance with the relevant condition of this authority.
- J6
Certification must be provided by the suitably experienced and qualified person who oversees the preparation of the design plan in the form set out in the Manual for assessing consequence Register of Regulated Structures.
- J7
Regulated structures must: (a) be designed and constructed in compliance with the Manual for assessing consequence (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; and (c) have the floor and sides of the dam designed and constructed to prevent or minimise the passage of the wetting front and any entrained contaminants through either the floor or sides of the dam during the operational life of the dam and for any period of decommissioning and rehabilitation of the dam. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- J8
Certification by the suitably qualified and experienced person who supervises the construction must be submitted to the administering authority on the completion of construction of the regulated structure, and state that: (a) the 'as constructed' drawings and specifications meet the original intent of the design plan for that regulated structure; and (b) construction of the regulated structure is in accordance with the design plan.
- J9
All affected persons must be provided with a copy of the emergency action plan in place for each regulated structure: (a) for existing structures that are regulated structures, within ten (10) business days of this condition taking effect; (b) prior to the operation of the new regulated structure; and (c) if the emergency action plan is amended, within five (5) business days of it being amended.
- J10
Operation of a regulated structure Operation of a regulated structure, except for an existing structure, is prohibited unless the holder of this environmental authority has submitted to the administering authority in respect of regulated structure, all of the following: (a) one paper copy and one electronic copy of the design plan and certification of the `design plan' in accordance with Condition J4; (b) a set of `as constructed' drawings and specifications; (c) certification of the `as constructed drawings and specifications' in accordance with Condition J6; (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 of this environmental authority 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 structure.
- J11
Each regulated structure must be maintained and operated, for the duration of its operational life until decommissioned and rehabilitated, in compliance with the current operational plan and, if applicable, the current design plan and associated certified `as constructed' drawings.
- J12
Mandatory reporting level Conditions J13 to J16 inclusive only apply to Regulated Structures which have not been certified as low consequence category for `failure to contain - overtopping'.
- J13
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.
- J14
The holder of this environmental authority 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. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- J15
The holder of this environmental authority must, immediately on becoming aware that the MRL has been reached, act to prevent the occurrence of any unauthorised discharge from the regulated dam.
- J16
The holder of this environmental authority must record any changes to the MRL in the Register of Regulated Structures.
- J17
Design storage allowance The holder of this environmental authority 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.
- J18
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).
- J19
The holder of this environmental authority 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.
- J20
The holder of this environmental authority 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.
- J21
Annual inspection report Each regulated structure must be inspected each calendar year by a suitably qualified and experienced person.
- J22
At each annual inspection, the condition and adequacy of all components of the regulated structure must be assessed and a suitably experienced and qualified person must prepare an annual inspection report containing details of the assessment and include a recommendations section, with any recommended actions to ensure the integrity of the regulated structure or a positive statement that no recommendations are required.
- J23
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
- J24
The holder of this environmental authority must within twenty (20) business days of receipt of the annual inspection report, provide to the administering authority: (a) the recommendations section of the annual inspection report; (b) if applicable, any actions being taken in response to those recommendations; and (c) if, following receipt of the recommendations and (if applicable) recommended actions, the administering authority requests a copy of the annual inspection report from the holder of this environmental authority, provide this to the administering authority within ten (10) business days of receipt of the request.
- J25
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. Permit Environmental Authority EA0001976 Olive Downs Coal Mine
- J26
Register of regulated structures A Register of Regulated Structures must be established and maintained by the holder of this environmental authority for each regulated structure.
- J27
The holder of this environmental authority must provisionally enter the required information in the Register of Regulated Structures when a design plan for a regulated dam is submitted to the administering authority.
- J28
The holder of this environmental authority must make a final entry of the required information in the Register of Regulated Structures once compliance with Condition J10 has been achieved.
- J29
The holder of this environmental authority must ensure that the information contained in the Register of Regulated Structures is current and complete on any given day.
- J30
All entries in the Register of Regulated Structures must be approved by an appropriately qualified person for the holder of this environmental authority, or their delegate, as being accurate and correct.
- J31
The holder of this environmental authority must, at the same time as providing the annual return, supply to the administering authority a copy of the records contained in the Register of Regulated Structures, in the electronic format required by the administering authority. END OF CONDITIONS Permit Environmental Authority EA0001976 Olive Downs Coal Mine Appendix 1 - Definitions Words and phrases used throughout this document are defined below. Where a definition for a term used in this document is not provided within this environmental authority, but is provided in the Environmental Protection Act 1994 or subordinate legislation, the definition in the Environmental Protection Act 1994 or subordinate legislation must be used. `acid mine drainage' means any contaminated discharge emanating from a mining activity formed through a series of chemical and biological reactions, when geological strata are disturbed and exposed to oxygen and moisture. `administering authority' is the agency or department that administers the environmental authority provisions under the Environmental Protection Act 1994. `airblast overpressure' means energy transmitted from the blast site within the atmosphere in the form of pressure waves. The maximum excess pressure in this wave, above ambient pressure is the peak airblast overpressure measured in decibels linear (dBL). `annual exceedance probability or AEP' the probability that at least one event in excess of a particular magnitude will occur in any given year. `annual inspection report' means an assessment prepared by a `suitably qualified and experienced person' containing details of the assessment against the most recent consequence assessment report and design plan (or system design plan); 1. against recommendations contained in previous annual inspections reports; 2. against recognised dam safety deficiency indicators; 3. for changes in circumstances potentially leading to a change in consequence category; 4. for conformance with the conditions of this authority; 5. for conformance with the `as constructed' drawings; 6. 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); 7. for evidence of conformance with the current operational plan. `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: 1. exactly what has been assessed and the precise nature of that determination; 2. the relevant legislative, regulatory and technical criteria on which the assessment has been based; 3. 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 4. the reasoning on which the assessment has been based using the relevant data and facts, and the relevant criteria. Permit Environmental Authority EA0001976 Olive Downs Coal Mine `associated works' in relation to a dam, means: 1. operations of any kind and all things constructed, erected or installed for that dam; and 2. any land used for those operations.