Environmental Management Plan
Cubic Aqua Tech – Redbank Creek Reference No. 30031776.004 Prepared for Cubic Aqua Tech 26 September 2019
SMEC INTERNAL REF. 30031776.004
Document Control
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Document Control Document: Environmental Management Plan
File Location: R:\Projects\Enviro\30031776 – Cubic Aqua Tech\EMP
Project Name: Cubic Aqua Tech – Redbank Creek
Project Number: 30031776.004
Revision Number: Rev00
Revision History
REVISION NO. DATE PREPARED BY REVIEWED BY APPROVED FOR ISSUE BY
Rev00 Draft for Comment 26 September 2019 J. Alexander E. Mullan J. Alexander
Issue Register
DISTRIBUTION LIST DATE ISSUED NUMBER OF COPIES
Cubic Aqua Tech 26 September 2019 1 - Electronic
SMEC Company Details
Approved by: M. Tilgner
Address: Level 1, 832 Southport-Nerang Rd, Nerang, Qld 4211
Signature:
Tel: 07 5578 0200 Fax:
Email: [email protected] Website: www.smec.com
The information within this document is and shall remain the property of:
Cubic Aquaculture Pty Ltd
SMEC Pty Ltd
Important Notice
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Important Notice This report is confidential and is provided solely for the purposes of construction and operation of a self-contained Aquaculture facility at 55 O’Grady Creek Rd, Redbank Creek . This report is provided pursuant to a Consultancy Agreement between SMEC Australia Pty Limited (“SMEC”) and Cubic Aqua Tech, under which SMEC undertook to perform a specific and limited task for Cubic Aqua Tech. This report is strictly limited to the matters stated in it and subject to the various assumptions, qualifications and limitations in it and does not apply by implication to other matters. SMEC makes no representation that the scope, assumptions, qualifications and exclusions set out in this report will be suitable or sufficient for other purposes nor that the content of the report covers all matters which you may regard as material for your purposes.
This report must be read as a whole. The executive summary is not a substitute for this. Any subsequent report must be read in conjunction with this report.
The report supersedes all previous draft or interim reports, whether written or presented orally, before the date of this report. This report has not and will not be updated for events or transactions occurring after the date of the report or any other matters which might have a material effect on its contents or which come to light after the date of the report. SMEC is not obliged to inform you of any such event, transaction or matter nor to update the report for anything that occurs, or of which SMEC becomes aware, after the date of this report.
Unless expressly agreed otherwise in writing, SMEC does not accept a duty of care or any other legal responsibility whatsoever in relation to this report, or any related enquiries, advice or other work, nor does SMEC make any representation in connection with this report, to any person other than Cubic Aqua Tech. Any other person who receives a draft or a copy of this report (or any part of it) or discusses it (or any part of it) or any related matter with SMEC, does so on the basis that he or she acknowledges and accepts that he or she may not rely on this report nor on any related information or advice given by SMEC for any purpose whatsoever.
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Table of Contents 1 INTRODUCTION ....................................................................................................................................................... 1
1.1 Project Description ....................................................................................................................................... 1 1.2 Project Scope ................................................................................................................................................ 1 1.3 EMP Context ................................................................................................................................................. 1 1.4 EMP Objectives ............................................................................................................................................ 1 1.5 EMP Sub-plans .............................................................................................................................................. 2
2 PROJECT INFORMATION .......................................................................................................................................... 5 2.1 Construction Scope of Works ....................................................................................................................... 5 2.2 Future operations ......................................................................................................................................... 5
3 LEGISLATIVE OBLIGATIONS ...................................................................................................................................... 7 3.1 Approvals and Licensing ............................................................................................................................... 7 3.2 Environmental Duty ..................................................................................................................................... 7
4 ROLES AND RESPONSIBILITIES ................................................................................................................................. 9 4.1 Project Principal ........................................................................................................................................... 9 4.2 Construction Manager/Foreman ................................................................................................................. 9 4.3 Construction Personnel ................................................................................................................................ 9 4.4 Operational Personnel ................................................................................................................................. 9 4.5 Subcontractors ............................................................................................................................................. 9
5 TRAINING ............................................................................................................................................................... 10
6 DOCUMENTATION AND COMMUNICATION .......................................................................................................... 11
7 INCIDENT RESPONSE AND EMERGENCIES ............................................................................................................. 12 7.1 Incident Management ................................................................................................................................ 12 7.2 Emergency Contacts and Response ........................................................................................................... 12 7.3 Environmental Spill Response .................................................................................................................... 13
8 COMPLIANCE ......................................................................................................................................................... 14
9 ENVIRONMENTAL RISK ASSESSMENT .................................................................................................................... 15
10 ENVIRONMENTAL MANAGEMENT ACTIVITIES AND CONTROLS ........................................................................... 19 10.1 General Site Management ......................................................................................................................... 19 10.2 Erosion and Sediment Control ................................................................................................................... 19 10.3 Water Quality Management ...................................................................................................................... 20 10.4 Flora and Fauna Management ................................................................................................................... 21 10.5 Noise and Vibration Control ....................................................................................................................... 22 10.6 Air Quality Control ...................................................................................................................................... 23 10.7 Chemicals, Fuels and Hazardous Materials ................................................................................................ 24 10.8 Waste Management ................................................................................................................................... 25 10.9 Visual Amenity and Lighting Management ................................................................................................ 26
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Appendices PROPOSAL PLANS
OPERATIONAL PLAN
AQUACULTURE WASTE MATERIAL - LABORATORY RESULTS
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List of Tables Table 1: Environmental Objectives and Targets ................................................................................................................. 2
Table 2: EMP Sub-plans ...................................................................................................................................................... 3
Table 3: Environmental Emergency Contact Details ......................................................................................................... 12
Table 4: Environmental Inspections ................................................................................................................................. 14
Table 5: Risk Rating ........................................................................................................................................................... 15
Table 6: Likelihood Criteria ............................................................................................................................................... 15
Table 7: Consequence Scoring .......................................................................................................................................... 16
Table 8: Risk Assessment .................................................................................................................................................. 17
List of Figures Figure 1: Locality ................................................................................................................................................................. 4
Figure 2: Proposed location of the shed which will house the Aquaculture facility ........................................................... 5
Introduction
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1 Introduction This Draft Environmental Management Plan (EMP) has been prepared by SMEC Australia Pty Ltd (SMEC) for Cubic Aquatech Pty Ltd (Cubic) to support a development application seeking a Development Permit for Aquaculture over land described as Lot 13 on RP213529, situated at 55 O’Grady Road, Redbank Creek (the project). This EMP and associated Sub-plans have been written in accordance with the following policies, guidelines and legislation:
• Soil Erosion and Sediment Control: Engineering Guidelines for Queensland Construction Sites (Institute of Engineers Australia, 1996);
• Best Practice Erosion and Sediment Control (International Erosion Control Association, 2008); • Queensland Environmental Protection Act 1994; • Queensland Environmental Protection (Water) Policy 2009; • Queensland Nature Conservation Act 1992; and • Somerset Regional Council: Planning Scheme Policy 3 – Catchment Management Analysis Guidelines.
1.1 Project Description The project proposes the development of an aquaculture facility on land described as Lot 13 on RP213529, situated at 55 O’Grady Road, Redbank Creek.
It is project proposes the establishment of a facility for growing of Black Tiger prawns (Penaeus Monodon), an Australian native marine crustacean. Black Tiger prawns are a fast-growing subtropical – tropical species, they are one of three prawn species farmed in Queensland and the main species farmed in Australia.
Unlike traditional prawn aquaculture operations in Qld that require purpose-built earthen ponds, usually constructed on coastal lands adjacent to estuarine river systems, the project involves tanks holding saltwater housed within a dedicated building and fitted with marine aquarium adapted technology to maintain constant temperature and water quality.
1.2 Project Scope The project scope includes construction of the building to house the tanks, installation of pumps, pipework and electrical supply and ongoing operation of the aquaculture facility once the construction phase of the project is complete. Detail of construction and operational activities are listed in Section 2.1.
1.3 EMP Context This EMP has been prepared as a draft document and makes assumptions on behalf of the appointed Construction Contractor and future operational staff. The EMP sets the benchmark in terms of environmental management on site, however, the appointed Contractor and operational managers must complete their own risk assessment based on construction and management methodology and update specific requirements within the EMP and sub plans over the duration of the project to reflect adaptive management approaches. While this EMP has been prepared by SMEC, ultimate responsibility for compliance with relevant legislation and approvals lies with the construction and operational managers.
The EMP aims to ensure that potential environmental impacts and management requirements associated with the project are identified and appropriate mitigation methods are developed to minimise potential environmental harm. The EMP provides a framework for ensuring that all persons and organisations involved in the project are aware of their environmental management obligations.
1.4 EMP Objectives The key performance objective of this EMP is to comply with all relevant environmental legislation and regulations, including avoiding environmental harm.
This EMP defines environmental obligations and other legal and regulatory controls relevant to the construction and operation of the Project. Key environmental objectives and targets for the Project are shown in Table 1.
Introduction
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Table 1: Environmental Objectives and Targets
ASPECT OBJECTIVE TARGET
Soils and Geology To apply soil erosion and sediment control principles to minimise soil erosion, sediment runoff.
• Effective erosion and sediment controls are installed and maintained throughout construction.
• Effective reinstatement of disturbed surfaces at completion of construction.
Ecology To protect flora and fauna within and adjacent to the site during construction and operation.
• On-site vegetation clearing is minimised.
• No damage to native vegetation beyond the site boundary.
• Potential impacts to native flora and fauna are minimised.
• Effective reinstatement/landscape of the site following construction.
Water Quality To avoid pollution of waterways by, waste water, fuels, oils, or chemicals stored used on the site and avoid sedimentation of waterways.
• Effective materials handling, and sediment and erosion control is implemented to ensure no spills of fuel, hazardous substances or sediment into waterways.
• Suitable offset distances from waterways are maintained.
Air Quality To minimise potential air pollution from construction and operational activities.
• Construction and operational activities do not result in excessive air quality impacts that cause environmental nuisance or harm.
Noise and Vibration To minimise potential impacts of noise and vibration from construction activities.
• Effective noise and vibration control measures are maintained throughout construction and operation.
Visual Amenity and Lighting
To protect landscape character and visual amenity values of the site and surrounds
• Effective screening, integration and siting of facilities to reduce visibility.
• No light spill from night time activities into neighbouring properties.
Waste To minimise waste resulting from construction and operational activities.
• Accurate records are maintained of all waste leaving the site.
• Tracking of any regulated wastes is maintained.
• Waste is disposed of at licensed facilities.
• The waste hierarchy of avoidance, reuse, recycling and disposal of waste is adopted during construction and operation.
1.5 EMP Sub-plans Sub-plans have been prepared to address each of the environmental aspects relevant to the Project. Each of these sub-plans has specific management measures, monitoring and reporting requirements that must be implemented. The EMP Sub-plans, which are provided in Section 10, are listed in Table 2.
Introduction
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Table 2: EMP Sub-plans
SUB PLAN NUMBER SUB PLAN TITLE PREPARED BY
1 General Site Management SMEC
2 Erosion and Sediment Control SMEC
3 Water Quality Management SMEC
4 Vegetation Management SMEC
5 Noise and Vibration Control SMEC
6 Air Quality Management SMEC
7 Chemicals, Fuel and Hazardous Materials Management SMEC
8 Waste Management SMEC
9 Visual Amenity and Light Management SMEC
Introduction
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Figure 1: Locality and layout
Project Information
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2 Project Information 2.1 Construction Scope of Works The construction of the project will involve the building of a 14.04m x 25.54m insulated colour-bond clad shed on a concrete slab base. This structure will house the tanks which will be used for growing of the prawns and the associated treatment of water. The area where construction will take place is level and is cleared of native vegetation. Correspondingly, minimal earthworks and no clearing of native vegetation is proposed as part of the construction. The area proposed for construction of the shed is shown in Figure 2 below.
Figure 2 Proposed location of the shed which will house the Aquaculture facility
The proposed design of the shed and general layout of the aquaculture facility is illustrated in Appendix 1.
2.2 Future operations
The future operations of the facility fill focus on the production of two crops of prawns per annum. The major components of the facility are the 100m2 production tank and the 50m2 water treatment tank. A series of smaller tanks associated with various component stages of the water treatment process will also be installed. Details of the operational aspect of the project are included in the Cubic Aqua Tech Aquaculture Operation Plan attached as Appendix 2.
Key features of the future operation of the facility are:
• The facility is located indoors within an insulated shed, noise and vibration generated by the activity will subsequently be very minor
• Pumps used are small capacity electric pumps (see Appendix 2) which fill further reduce the potential for generation of excessive noise
• No by-products or waste from the aquaculture production process will be released to the environment on site. All waste will be disposed of by a licensed waste contractor at an appropriately licensed facility. Sampling of the waste product produced by an identical process at Cubic Aquatech’s trial facility in China has been laboratory tested and the results of this testing did not indicate levels of contaminants which would require disposal at a specialised contaminated land facility. The laboratory analysis results are attached as Appendix 3.
• No food processing will be undertaken on site.
Project Information
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• No chemicals other than sodium hypoclorite are used in the production process and this is the only chemical which will be stored on site.
Legislative Obligations
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3 Legislative Obligations 3.1 Approvals and Licensing The construction and future operation of the facility will be conducted in accordance with relevant legislation, regulations and protection policies including:
• Planning Act 2016 and Regulation 2016; • Environmental Protection Act 1994 (EP Act) and Regulation 2008; • Environmental Protection (Water) Policy 2009; • Environmental Protection (Air) Policy 2008; • Environmental Protection (Noise) Policy 2009; • Waste Reduction and Recycling Act 2011 and Regulation 2011; • Nature Conservation Act 1992 and Wildlife Regulations 2006; • Water Act 2000 and Regulation 2002; • Soil Conservation Act 1986; • Work Health and Safety Act and Regulation 2011; • Vegetation Management Act 1999 and Regulation 2000; • Biosecurity Act 2015 and Regulation 2016.
All necessary licences, approvals and permits will be updated as changes occur to legislative and other requirements during the life of the project. This EMP will be updated in accordance with any applicable changes and updates will be communicated to relevant personnel throughout the life of the operation.
3.2 Environmental Duty Under Section 319 of the EP Act, everyone has a ‘general environmental duty’ to not undertake an activity that causes or is likely to cause environmental harm unless all reasonable and practicable measures are taken to avoid that harm.
The EP Act also imposes a ‘duty to notify’ (Section 320A - 320G) upon any person who becomes aware that their activities, or the activities of somebody working with them, has caused or threatens to cause ‘material’ or ‘serious’ environmental harm that is unlawful under the EP Act.
The EP Act defines environmental harm as ‘any adverse effect, or potential adverse effect (whether temporary or permanent and of whatever magnitude, duration or frequency) on an environmental value, and includes environmental nuisance.’
Material environmental harm is defined as:
‘environmental harm (other than environmental nuisance): a. that is not trivial or negligible in nature, extent or context; or b. that causes actual or potential loss or damage to property of an amount of, or amounts totalling,
more than the threshold amount but less than the maximum amount; or c. that results in costs of more than the threshold amount but less than the maximum amount being
incurred in taking appropriate action to: i. prevent or minimise the harm; and
ii. rehabilitate or restore the environment to its condition before the harm.’
Serious environmental harm is defined as:
‘environmental harm (other than environmental nuisance):
a. that is irreversible, of a high impact or widespread; or b. caused to:
i. an area of high conservation value; or ii. an area of special significance, such as the Great Barrier Reef World Heritage Area; or
Legislative Obligations
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c. that causes actual or potential loss or damage to property of an amount of, or amounts totalling, more than the threshold amount; or
d. that results in costs of more than the threshold amount being incurred in taking appropriate action to:
i. prevent or minimise the harm; and ii. rehabilitate or restore the environment to its condition before the harm.’
The obligations of all project personnel to avoid environmental harm and notify of material or serious environmental harm is outlined in Section 4.
Roles and Responsibilities
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4 Roles and Responsibilities 4.1 Project Principal Cubic Aqua Tech is the Principal for the project. The Principal or Principal’s Representative shall be responsible for liaison with all external stakeholders and agencies.
4.2 Construction Manager/Foreman The appointed contractor will nominate a Construction Manager/Foreman to be responsible for the construction of the aquaculture facility. All construction personnel report to this position. The Construction Manager is responsible for delegating responsibility to their team to ensure that the environmental impacts are minimised and obligations met in the areas of their control and that, through a collaborative approach to the principal, the responsibilities are passed down to the site work force and that no risks or obligations fall through gaps.
4.3 Construction Personnel All construction personnel will be required to comply in full with the requirements of the EMP.
If necessary, construction personnel will attend site a specific environmental induction to ensure that they are aware of their duties under the EP Act (see Section 3.2) and their responsibilities under the EMP.
Construction personnel shall immediately report all environmental incidents to the Construction Manager.
4.4 Operational Personnel All operational personnel will be required to comply in full with the requirements of the EMP.
Operational personnel will attend site a specific environmental induction to ensure that they are aware of their duties under the EP Act (see Section 3.2) and their responsibilities under the EMP.
Operational personnel shall immediately report all environmental incidents to the principal or the principals delegate.
4.5 Subcontractors As a minimum, subcontractors and their employees will be required to comply in full with the requirements of the EMP as it applies to site environmental management and control. Subcontractors’ personnel are considered equivalent to construction personnel in all aspects of environmental management and control and their responsibilities under the EMP. Sub-contractor personnel will be included in the onsite induction process if required.
Training
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5 Training To achieve environmental compliance all construction personnel must be made aware of their environmental obligations under relevant legislation and the EMP. This will be achieved through delivery of the following training to be provided on site:
• Site induction; and • Environmental training.
5.1 Site Induction All personnel and subcontractors may be required to undertake a site induction prior to commencing work on site. Site inductions will address several elements including occupational health and safety, quality and environment.
The environmental component of the site induction will address a range of environmental issues including, but not limited to:
• content and requirements of the EMP and Sub-plans; • the general ‘duty of care’ and ‘duty to notify’ obligations under the EP Act; • environmental objectives and targets; • relevant conditions of any licences, permits and approvals; • significant environmental values and areas of the site including sensitive areas, identification of site boundaries,
location of waste bins/skips, washing of plant and equipment, refuelling and maintenance of vehicles, plant and equipment;
• storage and handling of hazardous chemicals and fuels; • location of hazardous chemical/fuels and oils, spill kits and contents; • environmental management techniques for key environmental elements (air and noise, soil and water, waste
and recycling, flora and fauna etc); • incident management and emergency response plans; • reporting process for environmental harm/incidents; • mitigating dust, noise and vibration during works; and
The staff induction process and content will be reviewed regularly by the principal.
5.2 Environmental Training Personnel and subcontractors working on site will be provided with environmental training to achieve a level of awareness and competence appropriate to their assigned activities.
Targeted environmental awareness training will be provided to individuals, groups of workers, or those undertaking an activity with a high risk of environmental impact. Training is provided to ensure that relevant information is communicated on site and provides an opportunity for feedback on issues of interest or concern.
Documentation and Communication
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6 Documentation and Communication 6.1 Environmental Records The following records will be maintained as part of the project records:
• details of qualifications for individuals responsible for environmental monitoring; • the EMP (all versions) with attached regulatory licences and permits; • regulatory authority inspection reports; • correspondence with regulatory authorities; • monitoring results; • waste and materials tracking reports; • environmental accidents/incidents/emergency reports; • complaint reports.
6.2 Communication Process The Principal or Principal’s Representative shall be the point of contact for all external stakeholders and agencies.
6.3 Complaints Management The process for complaints management if received directly from the public is as follows:
1. Record the complaint in a “Complaint Register”; 2. Report all complaints to the Principal or his delegate as soon as possible; 3. Establish corrective actions; 4. The Principal reports corrective action back to the to the complainant;
Incident Response and Emergencies
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7 Incident Response and Emergencies 7.1 Incident Management All environmental incidents will be reported to the principal immediately. Details of the incident are to be collected. These may include:
• date and time of the incident; • nature of the incident; • specific details including parties involved; • contributing factors – e.g. “How” and “Why”; • severity classification including potential for environmental harm; • rectification actions; and • any notification requirements.
Examples of environmental incidents include the following:
• Fuel, oil or chemical spills • Fire or explosions; • Injury to native wildlife; and • Major erosion and sediment control failure.
During operations the principal or their delegate is responsible for investigating all environmental incidents, maintaining relevant records and taking actions.
During construction, incident management activities to be performed by the Construction Manager/Foreman and will include:
• daily inspections of the construction site to ensure any necessary environmental safeguards are in place; • completing routine environmental checklists; • ongoing environmental training; and • environmental audits of work sites, subcontractors and compliance issues.
7.2 Emergency Contacts and Response An up-to-date list of emergency response personnel, organisations and contact details will be maintained and posted at the site office and facilities. Table 3 below lists the key personnel and emergency services responsible during an environmental emergency at the site.
Table 3: Environmental Emergency Contact Details
ISSUE PERSON/ORGANISATION CONTACT DETAILS
Notification of incidents Project Principal:
Construction Manager:
Site Foreman:
TBA
TBA
TBA
Environmental Emergency Incident DES Pollution Hotline 1300 130 372 (option 2)
Contaminated Land DES Contaminated Land Unit (07) 3225 8402
Discovery of Fauna Wildcare Australia Hotline
RSPCA Hotline
(07) 5527 2444
1300 264 625
Incident Response and Emergencies
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ISSUE PERSON/ORGANISATION CONTACT DETAILS
Discovery of Fire Ants Department of Agriculture and Fisheries (DAF)
13 25 23 or (07) 3404 6999
Emergency Services QLD Police
QLD Fire Brigade
QLD Ambulance Service
000
Injury to persons Esk Hospital (07) 5424 4600
Fisheries issues Department of Agriculture and Fisheries (DAF)
13 25 23 or (07) 3404 6999
7.3 Environmental Spill Response In the event of an environmental spill, the individual(s) causing or becoming aware of the spill shall immediately:
• assess the extent of the spill and the risk; • select appropriate personal protective equipment; • identify and deactivate the source of the spill if possible and safe to do so; • contain and clean-up the spill where it is safe to do so; and • notify the principal and provide spill details (including potential for environmental harm).
The storage of chemicals, fuels and hazardous materials will be strictly in accordance with relevant legislation, manufacturer’s instructions, the current relevant MSDS and Australian Standard 1940.
Environmental and safety information on any hazardous substances (e.g. MSDS) will be available on site and where such substances may be stored. These locations will be communicated to all personnel during the induction process.
Adequate quantities of emergency response materials such as oil/hazard spill kits, absorbent materials etc. will be readily available and kept in an accessible location on site.
Compliance
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8 Compliance 8.1 Environmental Inspections and Monitoring During construction the Construction manager/foreman will undertake inspections to evaluate the effectiveness of any environmental controls in place. This will become the responsibility of the principal once the facility becomes operational. The inspections to be undertaken for the duration of construction/operations and are summarised in Table 4. Refer to the Site Inspection Checklist in Appendix C.
Table 4: Environmental Inspections
TYPE OF INSPECTION FREQUENCY RESPONSIBLE PERSONNEL
Visual inspections of site conditions including visible dust, waterways and drainage lines, site runoff, excavations, storage areas, crib areas etc.
Daily when work is occurring on site.
Construction manager/Foreman
Visual inspection of any erosion and sediment controls for condition and effectiveness.
At least daily (when work is occurring on-site). At least weekly (when work is not occurring on-site). Within 24 hours of expected rainfall; and Within 18 hours of a rainfall event of at least 20mm.
Construction manager/Foreman
Inspection of tanks and tank infrastructure for leaks/spills Daily during operations Principal or their delegate.
Monitoring will be undertaken by the Contractor during construction to ensure the environmental controls are functioning adequately. For the duration of construction, monitoring will be conducted of all relevant environmental aspects as outlined in the Sub-plans contained in Section 10.
8.2 Corrective Actions Where monitoring or complaints indicate that the works are not meeting the environmental obligations, corrective actions must be undertaken. The Contractor will implement all corrective actions identified by the Principals Representatives. Works that do not meet environmental obligations must be ceased until corrective actions can be developed and implemented. The timing of installation of control measures will be critical to ensuring that environmental obligations are met within the required timeframe and that controls are effective in achieving their purpose. For each non-conformance identified, the Non-conformance Register (Appendix D) is to be completed showing a description of the non-conformance and the corrective actions taken to rectify the matter.
8.3 EMP Review The principal is required to review and update the EMP to capture any future changes to the project scale or operational methods. Revisions to this EMP may be required during the project to reflect changing circumstances or identified deficiencies. Revisions may result from:
• Management review; • Inspections; • Complaint reports; • Changes to the Project, site compound and operational changes etc; or • Changes to legislation or the conditions of approvals/permits.
Environmental Risk Assessment
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9 Environmental Risk Assessment An environmental risk assessment was conducted of the environmental aspects associated with the proposed project. This risk assessment:
• Identified the environmental values of the project area; • Assessed the potential impacts that may occur from construction and operational activities; • Proposed mitigation measures to be applied to reduce the risk; and • Assessed the residual risks from potential impacts after the application of mitigation measures.
The risk was evaluated based on the likelihood of occurrence and the consequences of potential impacts resulting in an overall Risk Rating as shown in Table 5 below.
Table 5: Risk Rating
LIKELIHOOD CONSEQUENCE
Insignificant Minor Moderate Major Extreme
Almost Certain MEDIUM HIGH HIGH EXTREME EXTREME
Likely MEDIUM MEDIUM HIGH HIGH EXTREME
Possible LOW MEDIUM HIGH HIGH HIGH
Unlikely LOW LOW MEDIUM MEDIUM HIGH
Rare LOW LOW LOW MEDIUM HIGH
The likelihood criteria and consequence classification are shown in Table 6 and Table 7 respectively. The results of the Environmental Risk Assessment with residual Risk Ratings for each of the identified project construction risks are provided in Table 8.
Table 6: Likelihood Criteria
LIKELIHOOD OF OCCURRENCE
(OVER DURATION OF PROJECT)
Almost Certain 90 – 100%
Likely 70 – 90%
Possible 30 – 70%
Unlikely 10 – 30%
Rare < 10%
Environmental Risk Assessment
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Table 7: Consequence Scoring
CONSEQUENCE
CLASSIFICATION
QUALITY COMMUNITY PUBLIC & WORKFORCE SAFETY ENVIRONMENT
Extreme Project Unusable. Risk to public health.
Extreme negative media coverage / Regulatory intervention
Death or permanent incapacitation
Catastrophic site impact / high local impact / moderate external impact / serious long-term cumulative effect
Major Significant halt to project progress.
Significant negative media coverage / Formal council intervention
Major injury / illness High site impact / moderate local impact / minimal external impact / minor long-term cumulative effect
Moderate Project Useable but significant cost/time impacts
Critical media coverage / formal council request for information
LTI Moderate site impact / Minimal local impact / possible long-term cumulative effect
Minor Minor issue which may have some insignificant costs or delays associated.
Community complaints received
Minor injury / illness Minimal site impact / easily controlled
Insignificant Minor issue which does not result in delays/additional costs.
No community complaints No injury / illness No impact
Environmental Risk Assessment
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Table 8: Risk Assessment
RISK DESCRIPTION POTENTIAL IMPACTS
LIKE
LIHO
OD
CON
SEQ
UEN
CE
INITIAL RISK
RATING MITIGATION MEASURES
LIKE
LIHO
OD
CON
SEQ
UEN
CE
RESIDUAL RISK
RATING
Noise/vibration
Human health and comfort impacts
Damage to structures
Unlikely Moderate Medium Implementation of Noise and Vibration Management Sub-plan
Rare Moderate Low
Air emissions Human health and amenity impacts
Unlikely Moderate Medium Implementation of Air Quality Management Sub-plan
Rare Moderate Low
Removal of vegetation during site clearing
Loss of threatened flora species
Loss of threatened vegetation communities
Loss of fauna habitat
Rare Moderate Low Implementation of Flora and Fauna Management Sub-plan
Rare Minor Low
Disturbance of fauna during site clearing and vehicle movements
Native fauna injury or death
Native fauna vehicle strike Unlikely Minor Low
Implementation of Flora and Fauna Management Sub-plan
Rare Minor Low
Site runoff during storm events
Erosion and sedimentation
Reduction in water quality Unlikely Moderate Medium
Implementation of Erosion and sediment Control Sub-plan
Unlikely Minor Low
Chemical, fuel or sewage spill
Pollution of receiving waters Unlikely Moderate Medium Implementation of Chemicals and Hazardous Substances Management Sub-plan
Rare Moderate Low
Environmental Risk Assessment
18
ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
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RISK DESCRIPTION POTENTIAL IMPACTS
LIKE
LIHO
OD
CON
SEQ
UEN
CE
INITIAL RISK
RATING MITIGATION MEASURES
LIKE
LIHO
OD
CON
SEQ
UEN
CE
RESIDUAL RISK
RATING
Generation of waste materials
Resource use, amenity impacts, increased vermin
Possible Minor Medium Implementation of Waste Management Sub-plan
Rare Minor Low
Introduction or spread of weeds and pests
Reduced ecological values Rare Minor Low Implementation of Flora and Fauna Management Sub-plan
Rare Minor Low
Visibility of works and lighting
Visual amenity impacts
Obtrusive light spill Possible Minor Medium
Implementation of Visual Amenity and Lighting Sub-plan
Rare Minor Low
The proposed mitigation measures that were applied to reduce the initial risk as well as responsibility for implementation of these measures during construction are detailed in the Sub-plans provided in Section 10.
Environmental Management Activities and Controls
19
ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
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10 Environmental Management Activities and Controls The following Sub-plans addressing relevant environmental aspects of project works shall be implemented by the Construction manager and the principal.
Responsible personnel are nominated who must ensure that control measures are in place and effective throughout construction (including the construction and operational phases).
10.1 General Site Management
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Manage environmental impacts
Ensure all environmental control measures required under the EMP are implemented prior to commencement of construction works.
Construction Manager
Site Foreman Pre-construction
Ensure a copy of the EMP and site plan is kept on site at all times and is reviewed, updated and amended as required.
Construction Manager
Principal
During construction and later operations
Monitoring
Conduct regular environmental inspections in accordance with (refer Section 8.1).
Construction Manager
Principal
During construction and later operations
Review The Construction Manager and Principal or their delegate will hold regular meetings to resolve any environmental issues.
Construction Manager
Principal
During construction and later operations
Corrective action Non-conformances with the EMP will be investigated immediately and corrective actions implemented within 24 hours of becoming aware of the non-conformance.
Construction Manager
Principal
During construction and later operations
Ensure that the site is stabilised and ground cover reinstated as soon as practicable following completion of construction works.
Construction Manager
Principal
During construction and later operations
10.2 Erosion and Sediment Control
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Erosion and sediment control
Erosion and sediment controls (ESC) will include as a minimum:
• Construction of sediment fences/barriers around excavation areas; and
• Construction of sediment fences/barriers downstream of stockpile areas;
Construction Manager
Pre- construction
Environmental Management Activities and Controls
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MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
ESC measures will be installed prior to commencement of site clearing and earthworks.
Construction Manager
Site Foreman
Pre-construction
Ensure erosion and sediment controls are effective and operational at the beginning and end of each working day.
Construction Manager
Site Foreman
During construction
Stockpiles will be no greater than 2m in height and will be located more than 50m from waterways and drainage lines.
If stockpiles are to be left for extended periods, they will be stabilised with mulch, geofabric, temporary grassing or equivalent.
Construction Manager
Site Foreman
During construction
Monitoring
All ESC measures shall be inspected: • Daily when work is occurring on-site; • Weekly when work is not occurring on-site; • Within 24 hours of expected rainfall; and • Within 18 hours of a rainfall event of at
least 25 mm.
Construction Manager
Site Foreman
During construction
Reporting
Notify the Construction Manager/Principal immediately in the event of:
• A spill that could impact on water quality; or
• Sediment-laden runoff from site.
Construction Manager
Principal or Delegate
During construction and operations
In the event of material or serious environmental harm as defined in the EP Act (refer Section 3.2), notify the Principal within 24 hours. The Principal will report the breach in accordance with the requirements of the EP Act.
Construction Manager
Principal or Delegate
During construction and operations
Corrective Actions
Any incidents will be investigated immediately, and corrective actions implemented within 24 hours.
Construction Manager
Principal or Delegate
During construction and operations
The site shall be stabilised and ground cover reinstated as soon as practicable following completion of construction works.
Construction Manager
Principal or Delegate
During construction and operations
10.3 Water Quality Management
Management action control measure responsibility timing
‘Clean’ up-slope run-on water will be diverted either around or through the construction site.
Construction Manager
Site Foreman Pre- construction
Environmental Management Activities and Controls
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Management action control measure responsibility timing
Minimising impact on surface water
Laydown and storage areas, including hazardous materials storage, will be established away from overland flow paths and at least 50 metres from waterways.
Construction Manager
Site Foreman Pre- construction
Refuelling of any machinery on site shall occur at least 50m from waterways and drainage lines, will be supervised at all times and hoses will be fitted with a stop valve at the nozzle.
Construction Manager
Site Foreman During construction
Spill kits shall be made available on site in a readily accessible location throughout construction and during future operations
Construction Manager
Principal or Delegate
During construction and operations
Monitoring
Weather conditions and alerts relevant to the project area will be monitored to avoid works in periods with high erosion potential.
Construction Manager
During construction
Visual inspections shall be conducted of water runoff from site and evidence of sediment or pollutants in adjacent waterways.
Construction Manager
Principal or Delegate
During construction and operations
Reporting Complaints received about surface water quality due to the construction are to be recorded and the principal is to be notified.
Construction Manager
During construction and operations
Corrective Actions
Incidents or non-conformances with the EMP will be investigated immediately and corrective actions implemented within 24 hours.
Construction Manager
Principal or Delegate
During construction and operations
10.4 Flora and Fauna Management As noted previously no clearing of protected vegetation and/or significant fauna habitat is anticipated as a result of the construction and operations of the Aquaculture facility.
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
A site induction will be undertaken to inform construction personnel of the relevance of any marked items (such as clearing boundaries and trees to be retained) and to identify their responsibilities under the EMP.
Principal or delegate Pre-construction
The Contractor must avoid the disturbance of land outside the clearing boundaries as shown on design drawings and marked on site.
Construction Manager
Site Foreman During construction
All machinery and associated materials will be stored within existing cleared areas.
Construction Manager
Site Foreman During construction
Environmental Management Activities and Controls
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MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Machinery and materials must not be stored or stockpiled within areas of vegetation to be retained.
Weed control
Any listed weeds removed from the site will be disposed of at an approved off-site disposal facility that accepts green waste.
Construction Manager
Principal or Delegate
During construction and operations
Soil and landscaping materials used in revegetation works following construction are to be free of weeds.
Construction Manager
Principal or Delegate
During construction and operations
Corrective Action The site shall be stabilised and ground cover reinstated as soon as practicable following completion of construction works.
Construction Manager
Principal or Delegate Post-construction
10.5 Noise and Vibration Control The Aquaculture shed facility will be insulated to minimise noise. Only small scale low-noise electric pumps will be in use in the facility.
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Noise and Vibration Control
Work hours will be restricted to:
• 7.00am to 6.30pm Monday to Saturday.
Construction Manager
Site Foreman During construction
If works are to occur outside the hours outlined above, any sensitive receivers will be informed of the works and their duration 2 weeks prior to commencement.
Construction Manager
Principal or Delegate
During construction and operations
The Contractor shall select noise attenuating equipment for any works outside of the hours listed above.
Construction Manager
During construction
All noise emissions and vibration generated from mobile and stationary plant and equipment are to be attenuated where practicable including use of mufflers, acoustic shielding, temporary barriers etc.
Construction personnel
Principal or Delegate
During construction and operations
Construction activities likely to generate noise and vibration shall be located away from neighbouring residential properties as far as practicable.
Construction personnel
Principal or Delegate During construction
Monitoring
If noise complaints are received, qualitative and/or quantitative monitoring may be required and the need for this will be determined on an individual basis.
Construction Manager
Principal or Delegate
During construction and operations
Environmental Management Activities and Controls
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MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
If noise monitoring is required is shall be compliant with the Environmental Protection Regulation 2008
Reporting Any complaints received regarding noise and vibration are to be recorded in a Complaints Register.
Construction Manager
Principal or Delegate
During construction and operations
Corrective Action
Any corrective action will be undertaken by or in consultation with the principal. Principal or Delegate
During construction and operations
In the event that nuisance noise becomes the basis for consistent complaints that are not considered frivolous or vexatious, strategies for noise abatement as outlined in the Guide to Noise Control on Construction, Maintenance and Demolition Sites (AS 2436-1981) will be considered and implemented where practicable.
Construction Manager
Principal or Delegate
During Construction and operations
10.6 Air Quality Control
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Dust emissions
Dust producing activities will be avoided or minimised wherever practicable, during windy conditions.
Construction manager
Site Foreman During construction
Topsoil removal will be limited to the immediate construction area. Only areas being worked should have topsoil removed.
Construction manager
Site Foreman During construction
Dust generation will be controlled by watering of bare ground surfaces as required.
Construction manager
Site Foreman During construction
Disturbed areas, including working areas and stockpiles, will be stabilised as soon as possible.
Construction manager
Site Foreman During construction
Gaseous emissions
All vehicles and equipment will be regularly serviced and maintained in accordance with manufacturer’s specifications.
Construction manager
Site Foreman During construction
If excessive fumes are observed to be emitted, vehicles/plant will be shut down and maintenance check undertaken offsite.
Construction Manager
Principal or Delegate
During construction and operations
Monitoring Visual monitoring for dust shall be undertaken as part of daily inspections.
Construction Manager
Principal or Delegate During construction
Environmental Management Activities and Controls
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ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
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MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Monitoring of any complaints received will be undertaken during the construction works.
Construction Manager
During construction
Reporting All complaints are to be recorded in the Complaints Register and included in the monthly report.
Construction Manager
Environmental Officer During construction
Corrective Action
Non-conformances with the EMP will be investigated immediately, and corrective actions implemented within 24 hours of becoming aware of the non-conformance.
Construction Manager
Principal or Delegate
During construction and operations
10.7 Chemicals, Fuels and Hazardous Materials
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Appropriate storage and disposal of hazardous materials
Chemical, fuel and hazardous material storage areas will be established away from overland flow paths and at least 50 metres from waterways.
Construction Manager
Principal or Delegate
Pre-construction, Construction and during operations
Chemical will be stored in a bunded area. The bunded area will have sufficient capacity to contain at least 100% of the largest container plus 10% of the second largest container within the bund.
Construction Manager
Principal or Delegate
Pre-construction, Construction and during operations
All bunding must be roofed and constructed of materials impervious to the materials stored therein.
Construction Manager
Principal or Delegate Pre-construction
All chemical, fuel and hazardous material containers shall be labelled and MSDS’s must be located on site where the materials are stored and handled.
Construction Manager
Principal or Delegate
During construction and operations
Any hazardous wastes or contaminated materials are to be collected by a licensed waste contractor and disposed of at a licensed facility
Principal or Delegate During construction and operations
Spill Response
Spill response equipment will be available on site and shall be commensurate with the type and quantity of materials being stored on site.
Any spill which occurs on site will be attended to immediately.
Construction Manager
Principal or Delegate
During construction and operations
Environmental Management Activities and Controls
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ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
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MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Monitoring Inspections of chemical, fuel and hazardous materials storage areas will be undertaken as part of the daily site inspection.
Principal or Delegate During construction and operations
Reporting All incidents are to be recorded on the site environmental incident report and included in the monthly report.
Construction Manager
Principal or Delegate
During construction and operations
Corrective action
Management process to be re-assessed in the event of an incident. Environmental Officer During
construction
Non-conformances with the EMP will be investigated immediately and corrective actions implemented within 24 hours of becoming aware of the non-conformance.
Construction Manager
Principal or Delegate
During construction and operations
10.8 Waste Management
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
General and recyclable waste
Arrange for the provision of bins or skips for temporary storage of all general and recyclable wastes.
Ensure all waste bins or skips are emptied at a suitable frequency to prevent overfull or overflowing bins/skips.
Construction Manager
Principal or Delegate
Prior to and during construction and operations
Construction waste
All construction waste must be collected and transported off site by a licensed waste transporter and delivered to a licensed landfill facility.
Construction Manager
Principal or Delegate During construction
Aquaculture Spoil management
No Aquaculture waste will be released on site.
All construction materials that are in excess of the project requirements shall be disposed of off-site
Principal or Delegate During construction and operations
Material that requires off-site disposal is to be disposed of in accordance with all relevant statutory requirements and to a licensed landfill
This material includes:
• Aquaculture spoil and waste products; • Contaminated materials; and • Materials containing biosecurity matter.
Principal or Delegate During construction and operations
Environmental Management Activities and Controls
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MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Regulated waste
Regulated waste must be transported off site by a licensed waste transporter and to a licensed landfill facility.
Construction Manager
Principal or Delegate
During construction and operations
Where regulated waste is removed from the site, the Contractor shall keep the waste transfer certificates.
Construction Manager
Principal or Delegate
During construction and operations
Monitoring Conduct daily visual inspections of all waste storage areas. Principal or delegate
During construction and operations
Reporting
A Waste Management Register will be kept, detailing the type, location and amount of waste collected from the site, whether a waste transfer certificate was required, and the date it was collected. The waste transfer certificates for regulated wastes will be retained.
Principal or Delegate During construction and operations
Corrective action
Non-conformances with the EMP will be investigated immediately and corrective actions implemented within 24 hours of becoming aware of the non-conformance.
Construction Manager
Principal or Delegate
During construction and operations
Review waste management processes where required. Principal or Delegate
During construction and operations
10.9 Visual Amenity and Lighting Management A landscape screening buffer along O’Grady’s Rd will be established in accordance with the proposal plans attached as Appendix 1.
MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Control of visual and lighting impacts
Maintain vegetation onsite where possible for screening to create a visual buffer. Principal or Delegate
During Construction and operations
Ensure a high level of housekeeping is maintained for the entire site and internal and external roads.
Construction Manager
Principal or Delegate
During Construction and operations
Where possible, any night time activities and traffic movement will be minimised in proximity to residential properties.
Where appropriate, use directionally-controlled, shielded lights that are mounted at a sufficient height to minimise light spill to surrounding properties.
Construction Manager
Principal or Delegate
During Construction and operations
Environmental Management Activities and Controls
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ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
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MANAGEMENT ACTION CONTROL MEASURE RESPONSIBILITY TIMING
Monitoring Visual inspections will be undertaken as part of the daily inspection. Principal or Delegate
During Construction and operations
Corrective Action
Non-conformances with the EMP will be investigated immediately and corrective actions implemented within 24 hours of becoming aware of the non-conformance.
Construction Manager
Principal or Delegate
During construction and operations
Environmental Management Activities and Controls
28
ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
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Proposal Plans
162
162
163
163
164
16 4
16 4
164
16
41
64
16
4
1 65
165
165
1 65
16
5
165
16
5
16 5
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7
167
167
LOT 13
RP213529
P R O P OS E D
C A R P AR K
A R E A
P R O P OS E D
S H E D
1 4 .0 4 x 2 5 .5 4
14.04
25.54
CR
EEK
RE
DBA
NK
Em
t A
Edg
e of
Veg
etat
ion
and
Top
of B
ank
Ironbark
300D 8H
Ironbark
200D 4H
Ironbark
300D 10H
Ironbark
200D 8H
Ironbark
400D, 12H
Ironbark
300D, 12H
Ironbark
300D, 10H
Gum
s40
0D, 1
2H
Gum
s40
0D, 1
2H
P R O PO S E D LA N DS C A PIN G ST R IP
H O U S E O N
C O N C . S L A B
R / W T AN K
C A R P O R T W / T
E X T E N S I ON S
12
RP213529
14
RP213529
5RP21352
9
O'GRADY
OPEN SHED
Gums
300D, 12H
Bottom of Bank
Top of Bank
Edge of Vegetation
Driveway Edge
Edge of Bitumen
Paperbark
200D, 6H
Ironbark
300D 10H
Ironbark
600D, 12H
Site BM#1
PinRL: 166.405
Gum600D 12H
Gum
s40
0D, 1
2H
ROAD
P R O P OS E D
R A I N W AT E R
T A N K S50m SETBACK FROM STREAM ORDER 3
S E P T IC
T A N KW A S T E
C O L L E CT IO N
T A N K
S E D IM EN T
T A N K
0 2 0 4 0 6 0 8 0 1 0 0 1 2 0
NOTE:The 50m setback from Stream Order 3line is taken from a derived bottom of banklocation.
A
0 25mm 50 mm 75mmProjectClient
Rev.Drawing NumberJob No. LocalityScaleComputer File
Horizontal Co-Ord Datum Contour Interval Level Datum
Horizontal Co-Ord Origin Level Origin Value
Easting Northing Surveyed Date
Azimuth Field Book Drawn Date
Sheet
MGA Z56
SmartNet
437184.078 7004176.422
MGA TSC3
0.5m
PM68612
AHD
174.703m
24/05/2019MSZ
BES 02/07/2019 8122 8122-D01 1 of 1A:\PROJECTS\LOCATION\ESK\8122K_Redbank Creek\8122K Survey Data\8122.mjo 1:1200@A3
CUBIC AQUATECH PTY LTD
DETAIL & CONTOUR SURVEY
O'GRADY ROAD, REDBANK CREEK
Lot 13 on RP213529
REDBANK CREEK
Environmental Management Activities and Controls
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ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
SMEC Internal Ref. 30031776.004 26 September 2019
Operational Plan
1
Cubic Aqua Tech aquaculture operation plan
55 O’ Grady Road, Redbank Creek
Prepared by: Michael Zhang and Martin Zhang
Report No 101 – Version B
Dated 04/07/2019
This document will contain confidential information. All recipients should not share
to the third party. The document only for town planning.
COPYRIGHT © Cubic Aquatech Pty Ltd ABN: 18 631 807 595
This work is copyright, apart from any fair dealings for the purposes of study, research, criticism, or
review as permitted under the Copyright Act, no part may be reproduced by any process without written
permission.
2
Introduction
The Cubic Aqua Tech Pty Ltd is a start-up company registered in Australia. The company will
introduce innovative and highly efficient aquaculture technology into Australia. It is proposed
to utilise OCTO technology for filtration and treatment of saltwater. This technology has been
developed over a 15 year period of marine aquarium equipment manufacture. The company
has a high reputation in the aquarium industry. Moreover, the use of this technology has
potential to benefit an expansion of Australia’s aquaculture industry.
The purpose of this report is to describe the technology and operational phase of the proposed
aquaculture facility. This operational plan explains the operating process of the aquaculture
facility proposed to be established at 55 O’Grady Road, Redbank Creek. It is for planning
assessment purposes only by Somerset Regional Council and by State Government agencies.
The information and photographs included in the report are provided by OCTO research and
technology team of a prototype aquaculture facility that was were established at the Shenzhen
OCTO research centre.
Farming Tank
Photograph 1. Farming tank Photograph 2. Farming tank
Photograph 1. shows the basic appearance of the farming tank. The livestock will be kept in
this tank from Post larvae to Adult. The farming period is 120 days to harvest. The size of
prototype shown in photograph 1 is around 20 sqm in surface area. The external shape is round
as it easy to distribute the water pressure to avoid the tank leaking. The total wall height for the
farming tank is 160cm while the height of water level is no more than 65cm.
3
Photograph 2. is the interior of the farming tank. This picture shows the water colour is brown.
The coloration is due to the use of the brown sugar used in the tank to neutralize the ammonia
nitrogen. The recycled water would be reused after sedimentation and treatment. Moreover,
the tank bottom drains centrally, as shown in Diagram 1. This design helps any waste to
concentrate into the centre of the farming tank for ease of collection.
Sediment Tank
Photograph 3. Sediment Tank
Photograph 3 shows the Sediment Tank -in the second stage of the process, recycled water
drains to the sediment tank. The tank is cone shaped kept in a concrete bund area with
approximately 1/3 of the tank underground, as shown in Diagram 1.
The main function of this tank is to settle the water from the faming tank which contains high
intensity prawn feed, excrement and shed prawn shells. The heavier substance will deposit to
the bottom of the tank with the sediment pumped to the Waste collection tank, as shown in
Photograph 7. The recycled water at the top of the sediment tank, is clearer than the waste
water deposited to the bottom of the tank, however, the water to be taken from the top of tank
after sediment treatment still contains micro organic compounds dissolved in the water. The
next stage of treatment is the protein skimmer, which is functioned to filter any dissolved
organic matter (DOM).
4
Protein Skimmer and ‘Urine Tank’
Photograph 4. Skimmer tank Photograph 5. Urine Tank
Photograph 4. is the protein skimmer Q15 which contains fifteen 240 voltage output skimmer
pump manufactured by OCTO. The material and appliance in this equipment are designed and
certified to a marine standard.
Protein skimmer uses the physical method to make the water spin with high speed in the
skimmer chamber. A unique characteristic of marine water is that it will release white foam
when spun at high speed. The black hose connected to the top of the skimmer transports the
foam to the ‘Urine Tank’ to settle, which is shown in Photograph 5.
The Urine tank will break down the foam into liquid and pumped to the Collection Tank, as
shown in Photograph 8.
After the skimmer treatment, the water will settle in the water treatment tank, as shown in
Photograph 7.
5
Water treatment
Photograph 5. Oxidant Dissolution tank Photograph 6. Water treatment tank
After the water treatment in the protein skimmer, the filtrated water will be stored in the
treatment tank, shown in Photograph 6. In addition, the sodium hypochlorite will be added in
the oxidant dissolution tank, see Photograph 5. The soluble sodium hypochlorite is similar to
swimming pool chemicals used to kill any bacterial and algae. The sodium hypochlorite must
be fully dissolved in the oxidant dissolution tank before the treated water is pumped to the
water treatment tank. The sodium hypochlorite needs to be 100% dissolved in the oxidant
dissolution tank to ensure no sodium hypochlorite sediment enters into water treatment tank.
The oxygen supply in the water is continuously provided by the skimmer pumps. Any bacterial
and algae will be killed by chloride compound produced in the chemical reaction producing
sodium and the oxidized compound.
The water will continually be reused after treatment process. The water quality will be
monitored each time as part of the water recirculation. Any chlorine residual will be harmful
to the livestock, if there is any residual. Therefore, the residual of chlorine is carefully tested
before the water is released to the farming tank.
6
Waste Collection Tank
Photograph 8. Waste Collection Tank
Photograph 8 is the waste collection tank that settles any material which comes from sediment
tank and the urine tank, described earlier in the water treatment process. The material from this
tank will be removed by a licensed liquid waste collector.
Operation
Diagram 1
7
Diagram 2.
Diagram 2 is a diagrammatic picture of the proposal aquaculture to be established at 55 O’
Grady Road, Redbank Creek. Please note there will only be one farming tank that will have a
surface area no greater than 100sqm in area to be used for the growing of prawns.
8
The water treatment tank proposed is bigger than the prototype shown in Diagram 2 and two
Q15 skimmers will support the water treatment for the proposed aquaculture.
The building material of the shed to house the aquaculture will be similar to a fridge panel and
be made of a galvanised metal frame. The 80-100mm thick fridge panel will be used as the
building wall and roofing given its insulation properties to help maintain the water temperature
between 28-30 Celsius. There will be six (6) standard roller doors and 2 fire doors proposed
within the shed.
Transport
After the initial filling of the tanks, the proposed development will require the occasional
delivery of saltwater to help accommodate the growth in size of the prawns. The total water to
be used at any one time by the aquaculture is 70,000 litres. There will be fresh marine water
delivered every 4 months for each new round of farming. Currently, two farming rounds
proposed per year. An addition of 8000 litres of marine water will be added every round of
farming. This service two purposes. Firstly, the fresh nature marine water is better for Post
Larva to grow. The recirculated water may block the larva gills because of the micro bio floc.
It is safe for juvenile and adult prawn. Secondly, as part of the water replenishment, there will
be some lose of water in the recycling process i.e., the water pump to the Waste Collection
tank.
Environmental Management Activities and Controls
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ENVIRONMENTAL MANAGEMENT PLAN Cubic Aqua Tech – Redbank Creek Prepared for Cubic Aqua Tech
SMEC Internal Ref. 30031776.004 26 September 2019
Aquaculture Waste Material - Laboratory results
SMEC is recognised for providing technical excellence and consultancy expertise in urban, infrastructure and management advisory. From concept to completion, our core service offering covers the life-cycle of a project and maximises value to our clients and communities. We align global expertise with local knowledge and state-of-the-art processes and systems to deliver innovative solutions to a range of industry sectors.