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15ME0212-20191217-lrb-Cape Bridgewater Town Planning Report-03.docx EJ 17/12/19 | Page 1 of 19

Melbourne Office Level 15, 28 Freshwater Place SOUTHBANK VIC 3006 t +613 9622 9700 [email protected]

Bendigo Office L1 133 McCrae Street BENDIGO VIC 3550 t +613 5442 6333 [email protected]

Darwin Office 82 Smith Street DARWIN NT 0800 t +618 8980 5900 [email protected] www.irwinconsult.com.au

ABN 89 050 214 894

Cape Bridgewater Resort Town Planning Submission Report

17 December 2019

Revision 3 Job no: 15ME0212

mailto:[email protected]:[email protected]:[email protected]://www.irwinconsult.com.au/


15ME0212-20191217-lrb-Cape Bridgewater Town Planning Report-03.docx EJ 17/12/19 Page 2 of 19

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Document Control

Project Title: Cape Bridgewater Resort

Project No: 15ME0212

Irwinconsult has prepared this report with the following conditions:

The report may only be used by the client for the purpose for which it was commissioned.

The report may only be reproduced in full.

The report shall not be considered as relieving any other party of their responsibilities, liabilities or contractual obligations.

The report addresses the engineering disciplines noted within only.

The report does not address the presence of asbestos or other contaminative materials.

Contents

1 Executive Summary ........................................................................................ 4

General ........................................................................................................................................ 4

Authority Agreements ................................................................................................................ 4

2 Introduction ..................................................................................................... 4

General ........................................................................................................................................ 4

Title & Subdivision ..................................................................................................................... 4

Site Infrastructure....................................................................................................................... 4

Summary ..................................................................................................................................... 4

Clarifications ............................................................................................................................... 4

3 Hydraulic Services .......................................................................................... 5

Authority infrastructure ............................................................................................................. 5

Site Sewer and Water Infrastructure ......................................................................................... 5

Authorities .................................................................................................................................. 5

Water Supply .............................................................................................................................. 5

Rainwater Harvesting and Reuse ......................................................................................................... 6

Sewer and Waste Water ............................................................................................................. 6

Trade Waste ............................................................................................................................................ 6

Hot Water Service ....................................................................................................................... 6

4 Fire Services .................................................................................................... 6

General .................................................................................................................................................... 6 Building Surveyor .................................................................................................................................. 6 Fire Authority .......................................................................................................................................... 7 Fire Engineer .......................................................................................................................................... 7 Authority infrastructure ......................................................................................................................... 7 Site Wet Fire Infrastructure ................................................................................................................... 7 Fire Bridge Booster ................................................................................................................................ 7 Fire Pumps .............................................................................................................................................. 7 Fire Tanks ............................................................................................................................................... 7

Automatic Sprinkler System ................................................................................................................. 7 Fire Hydrants .......................................................................................................................................... 7 Fire Hose Reels ...................................................................................................................................... 7 Site Dry Fire Infrastructure .................................................................................................................... 7 Fire Detection System ........................................................................................................................... 7 Emergency Warning and Intercommunication System (EWIS) ......................................................... 7 Portable Fire Extinguishers / Fire Blankets ......................................................................................... 7

5 Electrical Services .......................................................................................... 8

General ........................................................................................................................................ 8

Site Electrical Infrastructure ...................................................................................................... 8

Solar PV Arrangement ........................................................................................................................... 8 Biofuel Generators and Fuel Tank Arrangement ................................................................................ 8

Revision Date File name 15ME0212-20191112-lrb-Cape Bridgewater Town Planning Report-01 .docx

1 15 Nov 2019

Description Preliminary Issue

Prepared Checked Approved

Initial LRB, DW6, , DP1 TM PHG

Date 15/11/2019 15/11/2019 15/11/2019

2 22 Nov 2019

File name 15ME0212-20191122-lrb-Cape Bridgewater Town Planning Report-02.docx

Description TP Submission


Initial LRB, DW6, DP1 TMC PHG

Date 22/11/2019

3 17 Dec 2019

File name

Description 15ME0212-20191217-lrb-Cape Bridgewater Town Planning Report-03.doc.x


Initial LRB, DW6,DP1 TM PHG

Date 17/12/2019

File name

Description


Initial

Date

File name

Description


Initial

Date



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Proposed Resort - Electrical Services....................................................................................... 8

Internal infrastructure ............................................................................................................................ 8 Lighting .................................................................................................................................................... 8 Lighting Control System ........................................................................................................................ 9 Emergency & Exit Lighting .................................................................................................................... 9 General Power ......................................................................................................................................... 9 Communications Systems ..................................................................................................................... 9 Security & CCTV ..................................................................................................................................... 9

Proposed Hotel Guest Rooms – Electrical Services ................................................................ 9

Proposed Resort Villas – Electrical Services ............................................................................ 9

6 Mechanical Services ...................................................................................... 10

General ...................................................................................................................................... 10

Proposed Hotel - Mechanical Services .................................................................................... 10

Proposed Resort Villas – Mechanical Services ...................................................................... 10

Heat Rejection System ............................................................................................................. 10

7 Civil Engineering ........................................................................................... 11

General ...................................................................................................................................... 11

Site Stormwater ........................................................................................................................ 11

Legal Point of Discharge ...................................................................................................................... 11 On Site Detention .................................................................................................................................. 11 Stormwater Harvesting ........................................................................................................................ 11 Stormwater Quality and Water Sensitive Urban Design ................................................................... 11

Geotechnical related ................................................................................................................. 11

Investigations ........................................................................................................................................ 11

Earthworks ................................................................................................................................ 11

8 Waste Management ....................................................................................... 11

General ...................................................................................................................................... 11

Waste Avoidance ...................................................................................................................... 11

Waste Stream Separation ......................................................................................................... 11

Infrastructure & Systems ......................................................................................................... 12

Disposal Facilities ................................................................................................................................ 12 Collection ............................................................................................................................................... 12

9 Structural ....................................................................................................... 12

Geology ..................................................................................................................................... 12

Excavations ............................................................................................................................... 12

Foundations .............................................................................................................................. 12

Villas ....................................................................................................................................................... 12 Hotel and Lodges .................................................................................................................................. 12 Carpark and Ancillary Plant Buildings ............................................................................................... 12 Restaurant ............................................................................................................................................. 12

Retention ................................................................................................................................... 12

Superstructure .......................................................................................................................... 12

Wall Construction ..................................................................................................................... 13

Tunnel ....................................................................................................................................... 13

10 Appendices .................................................................................................... 13

Appendix A Site Services Infrastructure Plan ...........................................................................

Appendix B RMCG Wastewater concept for Cape Bridgewater Report ...................................

Appendix C Report Acceptance for Waste Water Generation and Treatment.........................

Appendix D EarthEon Report ......................................................................................................

Appendix E Wannon Water correspondence (dated 28th October 2019) ..................................

Appendix F Borelogs ..................................................................................................................



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1 Executive Summary

General

The following updated report outlines the availability of authority infrastructure services to the site and provides a concept design for the proposed resort development. This report details our discussions with the following authorities and our assessments of the engineering provisions required to support the project. Authorities consulted:

EPA

CFA

Wannon Water, including GHD peer review

Southern Regional Water

PowerCor (CitiPower)

Shire of Glenelg

Authority Agreements

GHD Peer Reivew (Appendix C)

EPA comments within RMCG report (Appendix B)

Wannon Water (Appendix E)

2 Introduction

General

Irwinconsult have been engaged to review the availability of authority infrastructure service to the site and provide advice for the Town Planning Scope. The intent is to develop the site with minimal or no connection to the public infrastructure. This report considers the disciplines of:

Hydraulic Services including water and waste water

Fire Protection Services

Electrical Services

Mechanical Services

Civil Services

Waste Management

Structural

This report responds to the master site plan as issued by Spowers Architects. Our Site Services Infrastructure Plan is attached as Appendix A.

Title & Subdivision

The following report details our servicing infrastructure assessment based on the proposed facilities as shown on the architectural concept drawings. We understand the site title will be will be maintained as per the current arrangement. No further subdivision is proposed or title arrangement change from our current understanding.

Site Infrastructure

This report details the infrastructure to support the proposed development. As there are no sewer or water supplies to the site, bore water and on site wastewater treatment will be provided. These systems will meet all legislative requirements of the controlling authorities. Further sections within this report provide detailed assessment for each system.

In addition, onsite power generation will be provided utilising bio fuel generation and photovoltaics. Further sections within this report provide detailed assessment.

Summary

Our investigation and analysis identifies that the development can meet the Shire and Agency requirements under the Health and Wellbeing Act 2008 and the Environmental Protection Act 1970 with respect to water supply and effluent disposal. An analysis by RMCG on wastewater Management is attached (refer Appendix B) which outlines the principles for a compliant system. This report was peer reviewed by GHD and their letter of acceptance follows and is also attached (refer Appendix C). Water supply from borewater is the norm in the region and a desk top study on the likely bore depth and water quality has been undertaken by EarthEon (refer Appendix D) . The study concludes that water quantity can be achieved and that its quality will be adequate to be treated to a potable standard as outlined in section 3.4 of this report. Our further analysis for Fire Services, Electrical Services, Energy Production, Waste Management as well as Geotechnical, Civil and Structural Engineering all identify appropriate design solutions and outcomes for the development.

Clarifications

Irwinconsult releases this report subject to the following conditions and qualifications.

This report shall only be used for the purpose for which it was commissioned and in accordance with the corresponding Irwinconsult Conditions of Engagement.

This report shall only be reproduced in full.

This report shall not be considered as relieving any other party of their responsibilities, liabilities nor contractual obligations.



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3 Hydraulic Services

Authority infrastructure

Irwinconsult have carried out a Dial Before You Dig investigation for authority assets within the site area. This indicated that there are no Wannon Water assets in the area. The water supply and sewer will be standalone systems. We have contacted Wannon Water regarding any servicing requirements they may have for the project. Their response acknowledged the above and noted that trade waste requirements should meet Wannon Water and EPA expectations; this will include grease trap capacity and disposal of sewer treatment plant sludge. Refer correspondence from Wannon Water dated 28th October 2019 (refer Appendix E).

Site Sewer and Water Infrastructure

The development site is remote from the Wannon Water sewer and water supply networks and therefore will have standalone hydraulic systems. This will include the following: Onsite Bore Water Rainwater Harvesting Water Treatment (Bore to Potable Water) Onsite Water Storage Chlorination Plant Sewer Treatment Plant Grease Traps Onsite Treated Waste Water Wet Weather Storage Drip Irrigation for Treated Waste Water Garden Irrigation System

Authorities

Discussions have been had with authorities to determine requirements for this project. These include: Wannon Water (WW); Refer to email dated 28th October 2019 – Mr Corey Grapentin (refer Appendix E) Southern Rural Water (SRW) – Verbal Conversation 4th November 2019– Ms Lynda Hardy Environmental Protection Authority (EPA) – RMCG Report Appendix No 1 (refer Appendix B)

Water Supply

As there is no reticulated potable water supply available to the site, the site water supply will utilise both treated rainwater and treated bore water to potable standard. As assessment of the potable water demand for the site has been calculated to be in the order of 36,700 litres per day. (13,395ML/Annum). A desktop study has been completed by EarthEon Hydrogeologists. This predicts suitable water quantity and quality will be available in one of the regional aquifers (refer Appendix D). An application for a licence to construct a bore has been lodged with Southern Rural Water (SRW). Discussions with SRW are consistent with the EarthEon advice and confirm that local bores in the area are at approximately 30m depth and are used for domestic residential and stock purposes. Water allocations for the 30m depth are no longer available therefore SRW advice is that the bore depth for the site will be between 80m to 100m into the limestone. SRW also foresee no issues with the approval process and a test bore will be drilled to establish yield and water quality. The water samples will be analysed to determine the appropriate treatment necessary to produce potable water to meet Australian Drinking Water Guidelines (ADWG). Following planning approval and completion of the bore and water quality analysis confirming suitability for use, an application will be made to SRW for transfer of a water licence from current water licence owners. SRW advised that they will assist with this process. Testing of water quality will continue on a monthly basis from installation to establish any seasonal adjustments so that the water treatment can be confirmed to produce water to ADWG standards for the production of Potable Water.



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The potable water treatment plant is expected to consist of: Automatic sediment removal system – media type filtration system with high performance glass media and auto

control valve (suspended solids including iron reduction) Water softener system – iron exchange type regenerative system (hardness and iron reduction) Granular activated carbon system – media type system with GAC and auto control valve (colour, organics

reduction including RO membrane protection) Reverse osmosis system – automatic membrane type RO system (Conductivity, TDS reduction including

other metals, chemicals and physical disinfection barrier) Chlorination system recirculated through treated water storage tanks In addition to bore water use, rainwater will be collected from the roofs for potable water use. The rainwater will be the priority supply to meet demand prior to bore water production. (Refer section 3.4.1) The treated rainwater and bore water having undergone treatment will be stored in potable water tanks that will have sufficient capacity for 4 days supply. The tank capacity will be in the order of 150kL. A variable speed pressurised pump set will distribute the water around the site to all buildings to service fixtures and equipment.

Rainwater Harvesting and Reuse

A rainwater harvesting and reuse system will be provided as the initial supply of water use prior to the use of bore water. Assessment of rainwater harvesting for the site has been undertaken utilising MUSIC modelling software. Assessment of the demand and catchment options indicate the most effective tank capacity to be 200kL. The rainwater will be stored in an underground concrete tank with the treatment plant located in the hydraulic plant room. The filtration system will consist of a series of automatic backwash filters to achieve 1 micron filtration level and will incorporate UV filtration prior to its water storage. The results and assumptions are as follows: Annual average of 80% occupancy Roof area from main hotel building: 4800 m2 Daily demand 36.7kL Annual rainwater runoff available 3170kL Music Modelling Rainwater Tank Results

Tank size (kL) % Rainwater Utilised for Demand

% Rainwater overflow

200 23.3 1

From the results shown above a 200kL rainwater tank will provide rainwater to meet approximately 23% of the site demand, whilst significantly reducing rainwater overflow of stormwater from roof areas. There is no permit required by Southern Rural Water for the harvesting and use of rainwater.

Sewer and Waste Water

A wastewater treatment plant will be provided to treat, store, and dispose of all onsite wastewater generation. As the production of waste water will exceed 5,000 litres per day, EPA Works Approval is required to treat and manage the waste water treatment and disposal on site. RMCG Environmental Consulting have been engaged to establish the wastewater production volumes, suitable treatment, storage, disposal on site, sludge management and plant management for ongoing operations of the plant. They have provided advice for a feasible design outcome for waste water treatment, storage and disposal including a land capability assessment for onsite disposal of treated effluent. The works approval process and application to the EPA under their changing regulatory requirements is also described. The works approval process will follow Town Planning.

Refer to Appendix B for the detailed RMCG report for waste Water Generation and Treatment. A peer review has been conducted by GHD (Mark Trickey) and they have endorsed the report.(refer Appendix C)

Trade Waste

Grease traps will be provided for the treatment of waste water generated from the kitchen areas prior to discharge to the site sewer drainage system. It is anticipated that a grease trap in the order of 5,000 litres will be required for the main kitchen and a 2,000 litre grease trap for the Restaurant will be required. Capacities of the grease traps will be confirmed with Wannon Water during the detail design phase of the project. During the design phase, a Trade Waste Application will be lodged with Wannon Water for approval and confirmation of the final capacities. Capacities are based on both seating numbers and numbers of kitchen fixtures therefore finalisation will be undertaken during detail design.

Hot Water Service

As the main hotel building has been designed as a series of independent buildings, separate hot water systems will be provided for each of these and for the restaurant and each villa. The hot water systems will comprise of heat pumps of various sizes to meet the hot water demand. Heat pumps for the Villas will utilise R32 refrigerant gas whilst the hotel buildings will adopt heat pumps utilising CO2 gas. All heat pumps will be located in areas where they cannot be viewed and do not created any acoustic nuisance. Hot water ring main circulation systems will be provided for each hot water system so that water is available on demand at each fixture; minimising wait times and water wastage.

4 Fire Services

General

The report covers the following services:

Water Supply.

Fire Service Booster.

Fire Hydrant System.

Fire Hose Reel System.

Fire Pumps.

Fire Tanks.

Automatic Fire Sprinklers.

Fire Panels and Fire Alarm Connection.

Smoke Detection and Smoke Alarms.

Emergency Warning and Intercommunication System (EWIS)

Portable Fire Extinguisher / Fire Blankets

Irrigated 25m buffer in bushfire set back zones as outlined in SCBC report.

This report is based on the deemed to satisfy (DTS) provisions of the building code of Australia (BCA), Victoria building regulations.

Major fire equipment (i.e. FIP / EWIS / Fire Pumps / Fire Tanks / Sprinkler Control Valve Room) will be provided in accordance with the NCC and CFA requirements.

Building Surveyor

Any alternative solutions for fire protection will need to be established by the building surveyor in conjunction with the fire engineer when appointed for the design.



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Fire Authority

The fire authority is Country Fire Authority (CFA). As there is no reticulated water supply to the site, static water storage tanks with the capacity of 4 hrs water supply for fire hydrants and 1hr water supply for fire sprinklers. Total volume will be 350KL effective storage capacity within 2 No tanks. Additional meetings will be held with the CFA during the detailed design phase however the design is expected to meet Deem to Satisfy requirements for the BCA and AS2419. Regulation 129 application items will be determined once a BCA report for the site becomes available during the design phase of the project.

Fire Engineer

A Fire Engineer will be engaged in detailed design and any performance based solutions will need to be provided with an FER which the fire service design will need to comply with. Bushfire requirements have been assessed through the separate SCBC bushfire report.

Authority infrastructure

Refer to Hydraulics Section. A Grade III water supply is required for fire services.

Site Wet Fire Infrastructure

The following site wet fire infrastructure is proposed:

Fire Brigade Booster.

Combined fire hydrant / fire hose reel and automatic sprinkler system fire pumps.

350 KL total effective fire water storage tanks within 2 No tanks.

Automatic sprinkler valves located at each required building feed off the fire service ring main.

Automatic sprinkler system throughout expect areas where not required by code. (Building Surveyor to confirm).

Fire Hydrant System throughout.

Fire Hose Reel throughout the non-accommodation areas.

150mm diameter fire service ring main.

Landscape sprinklers in bushfire setback zone.

Fire Bridge Booster

To be provided in accordance to AS2419. Location proposed is northwest of the main building adjacent to the main entry to the building as shown on the site services Infrastructure Plan (refer Appendix A). Final location to will be approved by CFA.

Fire Pumps

Two (2) fire pumps (diesel and electric) will be provided in accordance to AS2941 to serve the Fire Hydrant / Fire Hose Reel and Automatic Sprinkler System. A Fire pump room will also be provided.

Fire Tanks

Two firewater storage tanks providing 4hrs fire hydrant supply and 1hr Sprinkler supply are located adjacent to the fire pump room within the underground carpark. Final location to be approved by CFA. Final size of the tanks will be determined once a fire engineer is engaged and after further discussions with the CFA.

Automatic Sprinkler System

Automatic Fire Sprinklers are proposed throughout in accordance to AS2118.1 – 1999. Building surveyor / fire engineer to confirm areas that will not require sprinklers. Sprinkler valves will be fed off the site wide fire services ring main. Sprinkler valves will be located externally or internally provided they have direct access to open road or space. Final location to be approved by CFA.

Fire Hydrants

It is proposed to provide Fire Hydrants throughout in accordance to AS2419. There will be combination of pressure boosted external and internal fire hydrants.

Fire Hose Reels

Fire Hose Reels to be in accordance to AS2441. Fire hose reels are required to be located no more than 4m from building exits and fire escapes.

Site Dry Fire Infrastructure

The following site dry fire infrastructure are proposed:

Fire Detection System


Smoke / Heat Alarms

Portable fire extinguishers / fire blankets

Fire Detection System

A Fire Indicator Panel (FIP) will be provided and will require two cabinets of same size to install required associated equipment. FIP to be located within the main entry of the hotel or as requested by the CFA. Clearance of 600mm each side and 1000mm in front (in addition of egress path) of the panel is required at all times for maintenance. The FIP has the fire brigade call-out equipment. Additional fire detection cabling will be provided from the fire pump room and fire tanks to the main FIP. AS1670 fire detection system will be provided throughout including all class 3 buildings (serviced apartments and the like). Other accommodation areas not class 3 (or as instructed by the building surveyor / fire engineer) may be provided with AS3786 smoke / heat alarm.


An EWIS system complying with AS1670.4 will be provided throughout. The Emergency Warning System (EWS) will require two cabinets of same size to be installed for the required associated equipment. Total of two cabinets. To be located within the main entry of the hotel or as requested by the CFA. Clearance of 600mm each side and 1000mm in front (in addition of egress path) of the panel is required at all times for maintenance.

Portable Fire Extinguishers / Fire Blankets

Portable fire extinguishers / fire blankets are to be provided throughout in accordance to Building Code of Australia (BCA) and AS2444.



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5 Electrical Services

General

DBYD information and discussions with PowerCor (CitiPower) confirm there is no HV/LV infrastructure available in the vicinity of the site. An off grid electricity generating solution is proposed for the project, comprising a combination of standalone renewable systems; Solar PV, Batteries and Biofuel generators. On-site generation of electricity through decentralized systems, including standalone Biofuel generators and renewable energy sources (solar PV), combined with a high-performance, scalable energy storage system, makes microgrids a viable solution for the energy needs of the proposed development. Battery storage will be provided with smart controls to perform daily cycles, shifting excess energy produced during the day, into the evening when it is needed most by the guests.

Site Electrical Infrastructure

An indicative diversified maximum demand for the development is in the order of 788 kW (1220 Amps per Phase, 3 Phase @ 0.9pf and 415VAC). The maximum demand value is based on VA/m² rate allowances. The figures selected for these allowances are based on Irwniconsult’s prior experience with similar projects and recommended allowances from relevant standards and publications. The proposed site electrical infrastructure will consist of the following:

Solar PV Panels Storage Batteries Biofuel Generators Fuel Tanks

This electricity generating and storage infrastructure will provide a 100% renewable energy supply to the proposed development. The system shall be fully programmable complete with synchronised change-over (between solar, generator and batteries with no loss of power), timed control, state of charge control etc.

Solar PV Arrangement

It is intended to maximise the Solar PV generation on site and supplement with Biofuel Generators. Solar PV panels are available in a number of different sizes and capacities. For a development like this, a typical solar PV panel is rated at 360W output and is approx. 1.6m x 1.0m in size and weighs approximately 18.6kg. This installation would also require space between rows of panels to allow for access and maintenance purposes. The panels will be installed on roofs with the rows of panels spaced appropriately to prevent overshadowing between panels. 462 panels of 360W will be arranged in flat (no tilt) portrait orientation on three roof spaces of the proposed buildings. This will provide 166.3kW at peak capacity. Separated into three roofs (R1, R2, R3) see below

R1 - 28.8 kWp - 1 x 25 kW inverter R2 - 47.52 kWp - 1 x 27 kW inverter & 1 x 12 kW inverter R3 - 90.72 kWp - 3 x 27kW inverter

The Solar system will be provided with 100% battery storage, which will time-shift excess solar energy produced by solar array. This minigrid setup allows the hotel to run its guest rooms and lodges off-grid using solar energy provided by battery storage. Energy storage coupled with PV allows the users to receive a stable supply of power to provide essential services to guests. Additional roof top solar PVs shall be provided in flat arrangement on the roofs of villas to augment solar power generation on site. Final quantity of solar panels will vary based on final location and orientation of villa. Battery storage overcomes the mismatch between solar generation and demand. The battery storage will be provided with smart controls to perform daily cycles, shifting excess energy produced during the day, into the evening when it is needed most by the guests.

Biofuel Generators and Fuel Tank Arrangement

Biodiesel is a high-performance CI fuel made from animal fats, vegetable oils or greases (FOG`s) and can be interchanged for diesel with minimum changes to an engine, Biodiesel is a renewable fuel which can claim large scale generation certificates (LGC) when used in power generation. Biodiesel is produced using small modular micro-refineries making it possible to support regional industry or remote power stations. There will be a constant flow of waste streams to provide energy sources to be used in a biofuels generation configuration which will be explored further in detailed design as these waste streams could offset the cost of outsourced biofuels, and also would help offset the cost of waste management. Based on suitable volumes, the following waste streams initiatives can be investigated:

Used Cooking Oils (UCO) are used in the production of biodiesel which is a common feed stock in the production of biodiesel a direct replacement for mineral diesel, while the volumes will be low and not economic for any onsite conversion it is proposed that any UCO produced onsite be clearly identified and shipped out to biodiesel micro refinery for conversion with the directive to have this biodiesel included in the fuel brought back to site.

Food wastes which will need to be managed to ensure the comfort of the guests and health obligations are met. In this process these waste streams can be directed to purpose built Anaerobic Digesters that will convert the waste into a high nutrient liquid and solid fertiliser and a high energy “Biomethane” that can be used to power onsite biofuel generators, onsite cooking or heating or sold offsite earning the site an income that can offset the cost of waste management.

The high lignon (Hard timber) green and brown waste like tree pruning’s, cardboards and other waste timber. These can be directed to a pyrolytic process where the solids are heated in the absence of oxygen to produce biochar and synthetic biogas that can be sold or used as a fuel in onsite power generation.

Biodiesel or the blend of biodiesel and mineral diesel is the preferred fuel for the generators and strategies for sourcing of locally produced biodiesel and waste collectors and farmers to ensure biodiesel is produced from renewable sources will be developed in detailed design. 4 x 250kVA biodiesel generators are proposed. These smaller synchronized generators provide a good option for supplementing load and solar tracking on site and offer redundancy within the system. A biofuel storage tank with the capacity of 30,000 litres will be provided to ensure continuous run of generators on site. A 30kL tank will provide enough capacity to carry the hotel through delays in delivery. The system will be complete with pumps, tanks, level indicators, alarms, interfaces, external fillers and all equipment necessary.

Proposed Resort - Electrical Services

Internal infrastructure

Supply for the resort will be achieved via the combination of solar panels and Biofuel generators and terminated into a new Main Switchboard located within the main switchroom. The main switchboard room is required to have 2no escape doors on opposite side of the room for emergency escape compliance. LV supplies will be run to service common areas, hotel rooms, back of house areas and essential services. Unmetered supplies will be run to small retail, food and beverage outlets and the gym. This main switchboard will then feed a number of distribution boards strategically located in different areas of development and on multiple floor levels.

Lighting

Lighting throughout the Resort will be designed in accordance with AS/NZS 1680 and for maximum flexibility to suit the various intended uses of the different areas/ rooms. Lighting will generally be comprised of energy efficient LED luminaires. LED drivers will typically be of the high frequency electronic type while luminaires will also be selected which are easily maintainable. External lighting will be provided to the entrance areas and perimeter for safety, security and landscape features. downward focussed external light for path/roadways will be provided for the purpose of amenity and security. This lighting will be tested to comply with AS4282 – Control of the obtrusive effects of outdoor lighting.



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Lighting Control System

A lighting control and energy management system (LCS) will be provided to meet the requirements of the BCA and minimise energy consumption and unnecessary artificial lighting. The LCS will be provided with the following basic features proposed:

Motion detector control of lighting;

Timer and sunset switch controls for external lighting;

Daylight sensors to control interior lighting adjacent to windows receiving daylight

Interface to security system for master controls of lighting (i.e. all off when building armed, all lights on when intruder detected, etc.);

It is not proposed to use a networked lighting control system. Instead, a standalone system comprising of motion sensors will be provided to meet the requirements of the BCA.

Emergency & Exit Lighting

Centrally monitored emergency and exit lighting will be provided throughout the Resort in accordance with AS/NZS 2293, the BCA and the building surveyor’s requirements. The exit signs will be of the pictograph (“walking man”) type.

General Power

Power outlets will be provided throughout the building as per architect/interior designer intent and equipment details, also to suit audio visual requirements and supply to other services equipment and motorised architectural elements.

Three phase power outlets in public areas to be key lockable.

Floor boxes will be provided around the building as required, complete with power outlets.

Communications Systems

NBN infrastructure is available in the vicinity for proposed site via fixed wireless technology. A Standard NBN installation shall be used via fixed wireless, requiring a receiver to be connected with the nearest existing transmission tower in the Cape Bridgewater area. Further investigation will be required at detailed design stage to select a transmission tower and to ensure maximum allowable distance of 14km from the receiver and transmission tower at line of sight. A communications room of dimensions 4m x 3m will be located within the Hotel building to allow for distribution of NBN to the hotel, villas and staff & maintenance facilities. The communications cabling installation will be provided in accordance with the relevant requirements detailed in the appropriate Australian Standards and good design practice.

A CAT6A structured cabling solution will be provided for data and voice connectivity throughout the building, consisting of patch panels, RJ45/ 4 pair outlets, fixed horizontal cabling, patch and fly leads from a single manufacturer. Reference will be made to the preferred cabling vendors, eg TE, Commscope, Panduit, Siemon or Molex. We note that the active data network design and configuration and the provision of the associated equipment (ie. servers, switches, routers, wireless access, UPS’s, PC’s printers, etc.), etc., will be implemented by the Hotel as appropriate. Floor boxes will be provided as required in any areas with AV requirements such as the gallery. The following systems will also be provided:

MATV

Hearing augmentation Technical requirements for these systems will be provided as the design develops.

Security & CCTV

Access Control and Intruder Detection

The Hotel’s preferred security services provider will be engaged to install a security system throughout the area.

Proposed Hotel Guest Rooms – Electrical Services

Supply for the hotel standard guestrooms will be via the Main Switchboard located within the main switchroom. A distribution board located on each level will be used to service lighting and power for all hotel rooms and common areas across the floor.

Proposed Resort Villas – Electrical Services

Supply for the resort villas will be via Main Switchboard located within the main switch room. Each villa area will be separated into number of zones (up to 5-6no. villas per zone) with a dedicated distribution board for each zone.



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6 Mechanical Services

General

The following section provides a brief outline of the proposed Mechanical Services systems associated with the Cape Bridgewater Resort. The Mechanical Services installation will be designed in accordance with the relevant requirements of NCC, the relevant Australian Standards, and the requirements of all authorities with jurisdiction over the works. Mechanical options that could be considered have been assessed against the following briefed building features and/or design requirements:

Mechanical Ventilation and for common areas;

Mixed mode ventilation for Hotel rooms;

Each individual room provided with independent temperature control.

Proposed Hotel - Mechanical Services

The base option comprises a Centralised High-efficiency Ground Source water-to-air ground source heat pump (GSHP) cooling system (see below).

Proposed Resort Villas – Mechanical Services

The base option for the Villas comprises Reverse Cycle Heat Recovery VRV/VRF system comprising of external outdoor condensers concealed from view and hearing at each villa.

Consideration will also be given to the inclusion of in-floor heating.

Highly energy efficient systems.

Heat Rejection System

Ground Source Heating/Cooling This system involves a group of centrally located Water Source Reversible Heat Pumps providing chilled water (for cooling) and heating hot water (for heating) throughout the building via a pumped reticulation system. The reversible heat pumps are also connected to a Heat Rejection Field to reject or absorb heat from the earth. The field comprises multiple close looped pipes located in the ground to provide the heat rejection or absorption. Ground Heat Rejection loops operate on the basis that below a certain depth underground the temperature is relatively constant year round and the COP (coefficient of performance) remains high year round. The Ground Heat Rejection loops can be installed in a number of configurations. The most appropriate configurations for this development is a vertical loop collector arrangement. A horizontal or trench installed loop requires significant increase in ground surface area as compared to a vertical loop with the associated disturbance to the ground vegetation and is considered less suitable for this site.

Ground Source Loop Configuration Options

Water Source Reversible Heat Pumps are designed to be mounted internally and would normally be located in a plantroom below the hotel carpark. The Closed circuit ground loops are located underground and therefore there is no externally mounted plant. Distribution piping between the buildings and the in ground piping array will be buried in ground. Once the Closed circuit ground loop pipes are installed they have a 50 year warranty and an approximated 200 year economic life cycle.

The pieces of mechanical equipment that will be installed as part of this option will include the following items: Multiple Water Source Reversible Heat Pumps with N+1 redundancy will be provided within an internal

plantroom. These Reversible Heat Pumps will produce chilled water (for cooling) and heating hot water (for heating) to be pumped throughout the buildings via a pump system.

The Reversible Heat Pumps are connected to the closed water circuit Heat Rejection Field in order to reject or extract heat from the earth. The field comprises multiple looped pipes inserted into the ground (approximately 90 in number and 6m apart depending on the depth of the holes and the final heating and cooling requirements). Condenser water pipe loops are connected in groups. Additional loops will be provided for redundancy. Condenser water is pumped between the loops in the Heat Rejection Field to the Reversible Heat Pumps. The field needs to be located in ground that is exposed to rain or irrigation and not covered by buildings

The chilled and heating hot water generated by the Reversible Heat Pump is pumped into a chilled water buffer tank or a heating hot water buffer tank. The water is then pumped around the building as required. The water to each wing will be provided with isolation such that maintenance isolations can be carried out without affecting the remainder of the facility.

Ground Source Heating It is also understood that a high temperature aquifer exists, but at considerable depth. Provided all necessary approvals could be obtained and requirements satisfied, it is possible this resource could be used as a more efficient heating source. Key issues would be whether used water needs to be reinjected back into the aquifer (to prevent wastage) or whether this in turn is considered too great a risk to the aquifer itself as a drinking water supply. Further investigation will be carried out on this during the detailed design phases.



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7 Civil Engineering

General

The following section provides a brief outline of civil engineering relating to the proposed development including:

General site stormwater works

Geotechnical

Earthworks Building rainwater and sewer services, and water cycle more generally, are covered within the hydraulic services section. Access roads, carparking and other hard surfaces are covered within the traffic engineering and landscape reports. All civil works will be designed in accordance with Glenelg Shire Council’s Infrastructure Design Manual (IDM) and in compliance with all authorities with jurisdiction over the works.

Site Stormwater

Legal Point of Discharge

Given the natural site topography, two distinct catchments and discharge locations are proposed. Approximately half the site, or 4.5 ha, falls towards Blowholes Road and will discharge via a detention basin/dam, and the other half towards the eastern site boundary.

On Site Detention

The site is currently an open grazing paddock or encumbered with thick vegetation towards the ocean. There will be a roof area of approximately 0.8 ha and other impervious surfaces of 0.4 ha which concentrates runoff. Using engineering software OSD4W and Swinburne method for the 5-year ARI post-development detention to 5-year ARI pre-development a permissible site discharge of 450 L/s was calculated. The required storage volume is 250 m3 and will be provided within the extended detention zone of the dam adjacent to Blowholes Road.

Stormwater Harvesting

As outlined in the hydraulic services section, rainwater harvesting off the main building roofs is proposed. The dam will not provide any further harvesting.

Stormwater Quality and Water Sensitive Urban Design

The development will be achieving best practice stormwater quality objectives of the planning scheme and IDM. All roof rainwater will be reused, and all ground surface stormwater is buffered by swales and grassy areas before discharging to the dam or natural watercourses.

Geotechnical related

Investigations

Two boreholes have been drilled to better understand the soil strata underlying the development and particularly surrounding the Blowholes Gallery and Experiential tunnel to the Degustation Restaurant. The findings of the drilling are described in the Structural report and borelogs are attached at Appendix F.

Earthworks

A preliminary model for site earthworks was undertaken based on the proposed tunnel construction. The site works were calculated to be in the order of 40,000 m3 cut and 20,000 m3 fill. The surplus site cut will be retained on site and reused for the following purposes:

Rock will be crushed and utilised for road base, other pavement materials and as base for landscape mounds and beams.

Clays will be utilised for rammed earth works and as a base for landscaping mounds and berms.

Sands and Topsoils will be stockpiled and reinstated at the end of works and for new landscaping mounds

8 Waste Management

General

The waste management strategy for the proposed Cape Bridgewater Resort is based on a ‘Zero Waste to Landfill’ approach. This will be achieved by setting primary focus on maximising waste avoidance and re-use initiatives across the development; followed closely by implementation of additional waste stream separation (i.e. organics, soft plastics); with disposal to landfill being a last resort.

Waste Avoidance

Given the isolated location of the development, adopting a site-specific policy that embraces waste avoidance initiatives, and reusable or low-impact products is an effective way to reduce the overall operational waste footprint. It is necessary to avoid the flow of undesirable packaging materials entering the site and consider sourcing goods/products locally or producing them on-site if possible. Some viable solutions/initiatives that can be implemented are detailed in the table below.

Avoidance/Reuse Methods

ITEMS/ACTIONS TO AVOID ALTERNATIVE SOLUTION

Takeaway/Single Use Coffee Cups Reusable coffee cups/mugs, where feasible. Use bio-degradable alternatives

Straws Remove completely or provide upon request only (keep behind counter)

Plastic Water Bottles Provide reusable water bottles (glass) and cups in guest rooms. Provide self-serve water stations in lobbies/foyers/dining spaces with reusable drinkware/glassware.

Plastic Cups / Plates / Cutlery Reusable/washable cups, crockery and cutlery.

Paper Napkins Use washable cloth napkins

Paper Towel (Washroom Amenities) Replace with hand dryers or washable hand towels

Single Serve Packaged Condiments (i.e. Tomato Sauce, salt, sugar)

Replace with dispensers

Individual Soaps and Shampoo Bottles

Replace with soap/shampoo dispensers (i.e. large refillable pump packs)

Single use shower caps / sewing kits Provide to guests upon request only.

Daily wash service of linen/towels

Give guest opportunity to choose if they need linen/towels washed to save water. (i.e. hang towel vs. leave on floor) Only wash sheets after guests have completed stay, or after 1 week of use, or upon guest request only.

Outsourcing of fresh food (i.e. herbs, vegetables, fruit)

Grow produce on-site. Source from local farms nearby (low food miles).

Polystyrene/cardboard packaged goods deliveries

Employ suppliers that use reusable crate packaging for food and other goods.

Additionally, benchmarking targets/goals can be set by the resort which can be published/advertised to keep accountability towards the zero waste to landfill approach.

Waste Stream Separation

Emphasis on the separation of waste at source (i.e. source separation) enhances the quality and value of recycled materials by producing a more homogenous, uncontaminated material streams. This not only reduces waste to landfill, but can result in more end market options and more revenue for these recyclable materials. To achieve zero waste to landfill outcome, further stream separation of items that typically end up in landfill will be implemented throughout the development, including but not limited to the following streams:

Commingled Recycling

Organics (Food)

Cardboard

Glass

Soft Plastics

Cooking Oil (i.e. grease trap waste)

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Polystyrene

Charity/Textiles (i.e. Linen)

Hard/Bulky Waste (i.e. Mattresses)

E-waste (electronic waste)

Secure Paper

Infrastructure & Systems

Waste generated throughout the development will be managed through a combination of fixed infrastructure/equipment and collection systems.

Disposal Facilities

Bin Stations Throughout the facility it will be ensured that it is as easy to dispose of all recyclable waste streams as it is garbage (landfill). This will be achieved by ensuring the development is appropriately furnished with bin stations throughout the individual guest rooms, ancillary spaces and communal areas (i.e. dining) and facilities. At a minimum a commingled recycling bin will be provided with every garbage bin throughout the development. Clear and descriptive signage is to be appropriately displayed in combination with the bin stations to identify the segregation of waste streams and correct use of the bins. The use of bin stations (see Figure 1) are highly recommended to encourage separation of recyclables. This system incorporates the provision of multiple bins for different waste streams at central locations and common areas for ease of disposal. This system is beneficial as users are required to make a conscious decision as to which bin they place their items in. This typically results in an increase in diversion from landfill. The use of bin stations also reduces the amount of locations cleaners are required to service throughout the development. On-Site Processing On-site processing will be considered for waste streams such as organics, cooking oil and garden waste. There are a few viable options available for on-site processing including:

Composting: Food waste can be used as major feed source for compost system, which can in turn be applied on-site as appropriate (e.g.vegetable patch or garden bed fertilizer).

Organics Digester: Digesters break down organic (food waste) using enzymes and expel it as grey water into the sewer system via a grease trap. No other residual waste is produced, thus eliminating need for collection.

Organics Dehydrator: Remove liquid from organic waste producing residual product which may be used as a nutrient rich soil conditioner.

Cooking Oil Recycling: Portable high precision oil purifier units can be used to filter and remove impurities from used cooking oil. The remaining product can be used as bio-fuel or stockfeed for off-site facilities.

Other on-site treatment processes such as baling, compacting, shredding/mulching and crushing can also be utilised on waste streams such as cardboard, soft plastics, garden waste and glass to reduce its storage volume prior to collection. These will be confirmed pending detailed review of waste systems required.

Collection

Waste collection arrangements will be directed via local waste contractors and/or recycling/sorting facilities. Where appropriate collection frequencies will be kept to a minimum, and consideration will be given for custom waste service(s) that has the ability to collect multiple streams in a single truck to reduce collection vehicle movements to and from the site. The loading dock and waste storage areas have been reviewed and are acceptable.

9 Structural

The structural forms chosen respond to the site conditions, the architectural aesthetic and materiality, the environmental aspirations and the intent to maximise the use of local trades. Our summary of structures and foundations follows:

Geology

Two boreholes have been drilled on the site. The borelogs and core sample photographs are attached (refer Appendix F). The boreholes show the upper strata comprise of sands and clayey-silty sands over highly weathered limestone rock with extremely weathered lenses and facture planes. This is what was expected based on views of the exposed cliff faces. The rock quality improves with depth.

Excavations

Excavations in the upper levels above the rock will be straightforward. Stable batters will be created for bulk excavation. Basement excavation in the upper rock will also be able to be completed with conventional bucket excavators and limited rock breaking. Near vertical cuts will be possible as depth increases. A more detailed investigation will identify local instabilities from fracture planes and sand lenses but these would be dealt with by rock bolting and shotcrete reinforcement where required. The Blowhole Gallery extends into more competent rock and excavation for if at depth may need some vertical coring to the perimeter to define the edges for excavation to be undertaken with hydraulic breakers. The tunnel will be addressed in a later section.

Foundations

Foundations will comprise the following types: Villas

Raft slabs in sands or strip footings with timber framed floors on stumps/screwpiles.

The choice will be determined by natural falls on each site and the floor level relative to surface level.

Hotel and Lodges

Pads and strip footings in the deeper clayey sands or the extremely weathered rock.

Carpark and Ancillary Plant Buildings

Pads and strips as above.

Restaurant

Pads and strips in the EW/MW Rock with some rock anchors to enhance stability.

Retention

Basement walls will consist of precast or AFS wall panels sitting on strip footings in as over excavation in the sand layers.

Where basement walls extend into competent rock over excavation to permit tanking, waterstopping and subsoil drainage will be adopted for habitable spaces.

For the carpark tanking not be provided and a drained wet basement is proposed.

Superstructure

For the larger hotel and lodge buildings the main structure will be reinforced concrete supported on concrete columns and structural walls.

In smaller lodges and accommodation timber upper floors will be adopted with appropriate fire and acoustic insulation.



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Timber framing will be used in conjunction with steel for lightweight roofs with PV’s and greenroofs with lightweight planting media.

Heavier roof structures with significant planting will be concrete as will the viewing platform at the top restaurant.

Wall Construction

Non structural walls and facades will match architectural finishes and where secondary structure is required timber will be preferred with steel as necessary.

Rammed Earth and Pisé construction can be self supporting when constructed with the right mix of site won cut and selected additives to bind and protect from erosion. Test “mixes” will be developed in the detailed design stage.

Tunnel

The tunnel construction through the highly weathered limestone is feasible. Dock conditions along the alignment will vary and detailed close spaced investigation via boreholes and geophysical methods will be undertaken during detailed designs to inform which construction methodology is most appropriate.

The options for tunnel construction are

Drill and blast with rock bolts and shotcrete; or

Excavation and pick bucket in 1.2m advances with rock bolted shotcrete.

Both methods allow flexibility in tunnel shape and opportunities to expose high strength rock in sections.

The detailed investigation will identify caves and lenses to help inform the final alignment and methodology.

Construction via tunnelling to the face without surface excavation which would impact vegetation will be adopted. The depth of the tunnel as it approaches the restaurant can be increased if necessary to ensure it is constructed in competent rock.

The only disruption to the surface will occur within the footprint of the restaurant.

10 Appendices

Appendix A Site Services Infrastructure Plan

Appendix B RMCG Wastewater concept for Cape Bridgewater Report

Appendix C Report Acceptance for Waste Water Generation and Treatment

Appendix D EarthEon Report

Appendix E Wannon Water correspondence (dated 28th October 2019)

Appendix F Borelogs



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Appendix A Site Services Infrastructure Plan

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Title Boundary 460.93m 97° 06'

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Appendix B RMCG Wastewater concept for Cape Bridgewater Report

Irwinconsult 20 November 2019

RE: Enquiry - is works approval required for my development?From: Approvals Applications

To: Duncan Wallis

Date: 12/11/2019 11:17 AM

Hi Duncan Please see the attached pathway application form, would you please fill this out and email back [email protected]. As stated below by Huw: An application would need to detail the treatment system, the reuse scheme, and be supported by a Land CapabilityAssessment. If you can provide some additional information, such as location, if a planning permit been obtained, timeframes etc. Ican provide some further advice. Regards__Mary Ross Administration OfficerDevelopment Assessments

Environment Protection Authority Victoria 181 William Street, Melbourne Victoria 3000 | DX 210082

0396952778 | E [email protected] | www.epa.vic.gov.au

We work flexibly at EPA. If I’m sending this message outside of normal business hours it’s because it suitsme. There is no expectation that you will respond outside your working hours.

Follow us

A healthy environment that supports a liveable and prosperous Victoria, now and always.

EPA acknowledges the Traditional Owners and custodians of the land and we pay our respects to their Elders, past, present andemerging. We’re an inclusive workplace that embraces diversity in all its forms.

From: Duncan Wallis Sent: Tuesday, 12 November 2019 9:28 AMTo: Huw Evans Cc: Approvals Applications Subject: Re: Enquiry - is works approval required for my development?

Excellent thanks Huw.Location is Cape Bridgewater.Planning application is due to be submitted this week.Timing is going to move quite quickly.So, is our first step to submit a pathways form?I just need some direction on process so I can submit a costed proposal to the client. They want RMCG tomanage the EPA approvals.ThanksDuncan----Duncan WallisRMCGPhone 0429 145 169

On 12 Nov 2019, at 8:56 am, works.approvals wrote:

Hi Duncan, Our inbox for these types of enquiries is [email protected] Based on in the information in your email below, a works approval or an assessed exemption from worksapproval is required prior to commencing works as an A03 Scheduled Premises (Sewage treatment):

Treating, discharging, or depositing sewage with a design or actual flow rate of 5,000 L/day A licence would not be required if the design or actual flow rate is less than 100,000 L/day anddischarging and depositing waste solely to land with specifications acceptable to the Authority. Thespecifications acceptable to the Authority is a wastewater treatment and reuse scheme that complieswith EPA publication no. 464.2 Guidelines for Environmental Management: Use of Reclaimed Waterhttps://www.epa.vic.gov.au/about-epa/publications/464-2 An application would need to detail the treatment system, the reuse scheme, and be supported by aLand Capability Assessment. If you can provide some additional information, such as location, if a planning permit been obtained,timeframes etc. I can provide some further advice. Kind regards, Huw EvansProject ManagerDevelopment Assessments

Environment Protection Authority Victoria 200 Victoria Street, Carlton VIC 3053 | GPO Box 4395, Melbourne VIC 3001 | DX 210082P 0396952943 | E [email protected] | www.epa.vic.gov.au

From: Duncan Wallis Sent: Thursday, November 7, 2019 2:32 PMTo: works.approvals Subject: Enquiry - is works approval required for my development? Hi EPA Works Approval Team

I am hoping someone can give me a call to discuss whether works approval and/or licensing isrequired for my development.I have looked at the Environment Protection (Scheduled Premises) Regulations 2017,Schedule 1 A03, but it is not clear to me. Summary of proposed development:

Restaurant and cabins - sewage generated 33kL/day.Onsite treatmentOnsite irrigation - maximum 80kL/d in summer.

Thanks Duncan-----

Duncan WallisASSOC IATE

135 Mollison Street, Bendigo, Victoria 3550

0429 145 169 — (03) 5441 4821 — rmcg.com.au

This message contains confidential information and is intended only for the addressees. Ifyou are not the named addressee you should not disseminate, distribute or copy this email.Please consider the environment before printing.

This email (and any attachments) is for the intended recipient only and may contain privileged,confidential or copyright information. If you are not the intended recipient, any use of this emailis prohibited, please notify the sender immediately or contact us on 1300 372 842 (1300 EPAVIC), or [email protected] and delete the original. EPA does not warrant that this emailor any attachments are error or virus free and accepts no liability for computer viruses, datacorruption, delay or interruption, unauthorised access or use. Any personal information in thise-mail must be handled in accordance with the Privacy and Data Protection Act 2014 (Vic).

This email (and any attachments) is for the intended recipient only and may contain privileged, confidential or copyrightinformation. If you are not the intended recipient, any use of this email is prohibited, please notify the sender immediately orcontact us on 1300 372 842 (1300 EPA VIC), or [email protected] and delete the original. EPA does not warrant that thisemail or any attachments are error or virus free and accepts no liability for computer viruses, data corruption, delay orinterruption, unauthorised access or use. Any personal information in this e-mail must be handled in accordance with the Privacyand Data Protection Act 2014 (Vic).

Attachments:

EPA-Approvals-Pathway-Form.docx



Page 16 of 19

Appendix C Report Acceptance for Waste Water Generation and Treatment

21 November 2019

Phil Gardiner Irwinconsult Level 3, 289 Wellington Parade South East Melbourne VIC 3002

Our ref: 315 : 12510122

Dear Phil

RMCG Wastewater concept for Cape Bridgewater development GHD review GHD has undertaken a review of the report “Wastewater management concept for Cape Bridgewater development”, RMCG (20 November 2019).

Based on this review the proposed wastewater management concept appears reasonable.

If you have any further questions please contact the undersigned.

Regards GHD Pty Ltd

Mark Trickey Business Group Leader - Water Technology, Victoria +61 3 8687 8260

y

M k T i k



Page 17 of 19

Appendix D EarthEon Report

ACN 120 654 677

ABN 28 120 654 677

12 Thomas Street,

Williamstown VIC 3016

Cape Bridgewater Desktop Groundwater Study

IrwinConsult Pty Ltd

Date: 21 November 2019

Reference: IC001

EarthEon Pty Ltd

Mt Rose, Cape Bridgewater Groundwater Supply Feasibility Preliminary Report Page ii

Contents 1 Introduction .................................................................................................................................................... 1

1.1 Background .......................................................................................................................................... 1 1.2 Objective ............................................................................................................................................... 1 1.3 Scope .................................................................................................................................................... 1

2 Project Setting ................................................................................................................................................ 2 2.1 Regional Setting ................................................................................................................................... 2 2.2 Surface Water ...................................................................................................................................... 3 2.3 Rainfall/Climate .................................................................................................................................... 3

3 Hydrogeology ................................................................................................................................................. 4 3.1 Regional Geology................................................................................................................................. 4 3.2 Regional Hydrogeology ....................................................................................................................... 4 3.3 Groundwater Bore Database Search ................................................................................................. 5 3.4 Groundwater Salinity ............................................................................................................................ 6

4 Groundwater Potential ................................................................................................................................... 8 4.1 Overview ............................................................................................................................................... 8 4.2 Basalt and scoria aquifer (Target 1) .................................................................................................... 8 4.3 Limestone Aquifer (Target 2) ............................................................................................................... 8 4.4 Deep Sand Aquifer (Target 3) ............................................................................................................. 8 4.5 Groundwater salinity ............................................................................................................................ 9

5 Licensing Requirements .............................................................................................................................. 10 5.1 Overview ............................................................................................................................................. 10 5.2 Unincorporated area (Target 1) ......................................................................................................... 10 5.3 South West Limestone Groundwater Management Area (Target 2) .............................................. 10 5.4 Portland Groundwater Management Area (Target 3) ...................................................................... 11

6 Conclusion ................................................................................................................................................... 13 7 References ................................................................................................................................................... 14

Figures Figure 1. Regional project setting. ........................................................................................................................ 2 Figure 2. Aerial photo of the site . ......................................................................................................................... 2 Figure 3 Long-term mean monthly rainfall ........................................................................................................... 3 Figure 4. Local geology. ....................................................................................................................................... 4 Figure 5. Groundwater salinity of the water table aquifer system ....................................................................... 7 Figure 6. Groundwater salinity of the UMTA (Port Campbell Limestone) .......................................................... 7 Figure 7. Schematic diagram of the area around the subject property .............................................................. 8 Figure 8. South West Limestone GMA.............................................................................................................. 11 Figure 9. Portland GMA ...................................................................................................................................... 12

EarthEon Pty Ltd

Cape Bridgewater Desktop Groundwater Study Page 1

1 Introduction EarthEon Pty Ltd (EarthEon) was engaged by IrwinConsult to undertake a Desktop Groundwater Study for a development at Cape Bridgewater (proposal dated 19 September 2019).

1.1 Background IrwinConsult are designing a hotel development located on the Blowholes Road, Cape Bridgewater (SPI 1\PS500866). The property is set over 10 Ha cleared pasture. IrwinConsult is interested in the potential to supply the development with 37 kl/d of groundwater (13.5 ML/yr).

1.2 Objective The objective of desktop study is to briefly describe the local hydrogeology, identify potential groundwater resources at the property and outline regulatory controls

cape bridgewater resort · 2021. 1. 27. · cape bridgewater desktop groundwater study page 13 . 6...

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