Public Release of Technical Studies from the Go Jindabyne ...

Public Release of Technical Studies from the Go Jindabyne Master Plan February 2020

*Please read this letter prior to reading the attached report*

Go Jindabyne Master Plan The Go Jindabyne Master Plan was announced in November 2018, to revitalise Jindabyne into Australia’s premier alpine destination at the heart of the Snowy Mountains, and grow the town into a great place to live, work and visit year-round.

Upon commencement of the project, the NSW Department of Planning, Industry and Environment commissioned a range of technical studies to develop an evidence base that would subsequently inform drafting of the Go Jindabyne Master Plan. The technical studies commissioned for the Go Jindabyne Master Plan were conducted between March and July 2019 by specialist consultants with expertise in a variety of different fields:

1. Demographics and Housing Study (Consultant: City Plan) 2. Environment and Heritage Study (Consultant: NGH Environmental) 3. Economic Development and Tourism Study (Consultant: Hill PDA) 4. Mobility and Connectivity Study (Consultant: GTA Consultants) 5. Infrastructure and Services Study (Consultant: Aecom)

Analysis of the technical studies listed above, together with public consultation conducted in 2019, made it apparent that Jindabyne, as a town, is heavily dependent on the economic activity that occurs outside of the town itself – particularly within Kosciuszko National Park.

Snowy Mountains Special Activation Precinct In response, the Snowy Mountains Special Activation Precinct was announced in November 2019, to expand the scope of the Go Jindabyne Master Plan to encompass the wider Snowy Mountains region. The Snowy Mountains Special Activation Precinct will continue to focus on Jindabyne’s transformation into Australia’s Alpine Capital, but will now also include the high-visitation areas within the southern region of Kosciuszko National Park as well as the key transport corridors between Jindabyne and the alpine resorts.

The objective of the Snowy Mountains Special Activation Precinct is to increase year-round tourism by making the region an unmissable place to visit during any season. Benefits offered by a Special Activation Precinct include streamlined planning, government-led development, and a business concierge service that will make it easier for new businesses to set up in the region and for existing organisations to thrive.

The Special Activation Precinct will build upon the work already undertaken as part of the Go Jindabyne Master Plan to identify opportunities to:

• promote the development of year-round adventure and eco-tourism attractions and improve tourism amenity within the region,

• improve access within and to the region, to support increased visitation numbers, • remove capacity constraints to enable growth in winter tourism, and • grow the region into Australia’s national training base for high performance alpine

athletes and para-athletes.

Public Release of Go Jindabyne Technical Studies The Department is now publicly releasing the technical studies from the Go Jindabyne Master Plan, as part of our ongoing commitment to community engagement and transparency.

Please note that these technical studies were conducted under the original scope of the Go Jindabyne Master Plan and thus may no longer be relevant and are not directly applicable to the Snowy Mountains Special Activation Precinct, given its expanded scope. Accordingly, the findings of these Go Jindabyne technical studies are subject to change through the Snowy Mountains Special Activation Precinct process. For this reason, we are not seeking public comments on these technical studies. Please also note that at this stage, the findings of these technical studies have not been endorsed by the NSW Government.

You will find that some information has been redacted from these technical studies to protect culturally and commercially sensitive information and ensure privacy of landholders. Specifically, the following information has been redacted:

• Demographics and Housing Study The following information has been redacted because it contains commercially sensitive information related to specific properties in Jindabyne:

• Tables 36, 41, 43, 44, 46, 48, 68 and 69 (as well as their references in the table of contents).

• Figures 58, 80 and 81 (as well as their references in the table of contents). • Text on pages 113, 151 and 156.

• Environment and Heritage Study

The following information has been redacted to protect sensitive Aboriginal cultural heritage information, or because further analysis is required to confirm the accuracy of these findings:

• Figures 4-2, 4-7, 4-8, 4-9, 5-4, 5-5, 5-7, 5-8, 5-9, 6-3, 6-4, 6-5, 7-1, and 7-2 (as well as their references in the table of contents).

These Go Jindabyne technical studies will be reviewed in detail through the Snowy Mountains Special Activation Precinct process, and their respective scopes will be expanded to reflect the larger investigation area that now includes areas of Kosciuszko National Park. The technical studies that will be prepared for the Snowy Mountains Special Activation Precinct will be publicly released in early 2021 when the draft Snowy Mountains Master Plan is released for public comment.

Next Steps The NSW Department of Planning, Industry and Environment will continue to work closely with the community, stakeholders, Snowy Monaro Regional Council, and other NSW Government agencies on the Snowy Mountains Special Activation Precinct.

Community consultation on the Snowy Mountains Special Activation Precinct commenced in early 2020, and will continue throughout the project.

To keep informed on the Snowy Mountains Special Activation Precinct, please visit our project website at www.planning.nsw.gov.au/snowymountainssap and subscribe to our email list to receive future updates and opportunities to have your say.

Any questions regarding these technical studies or the Snowy Mountains Special Activation Precinct can be directed to Rukshan de Silva, Principal Planner, at [email protected].

We look forward to working with you to shape the future of the Snowy Mountains.

Yours sincerely,

Anthea Sargeant Executive Director, Key Sites and Assessments NSW Department of Planning, Industry and Environment

\\ausyd1fp001\Projects\606X\60602638\500_DELIV\501_Draft Docs\Utilities and Servicing\Stage 2\20190729_Jindabyne Utilities and Servicing Strategy (Rev 4).docx Revision 3 – 24-Jul-2019 Prepared for – NSW Government, Planning and Environment – ABN: 38 755 709 681

Go Jindabyne

NSW Government, Planning and

Environment

29-Jul-2019

D R A F T

Go Jindabyne Utilities andServicing Strategy

Draft Report

AECOM

Go Jindabyne

Go Jindabyne Utilities and Servicing Strategy

D R A F T



Progress Report

Client: NSW Government, Planning and Environment

ABN: 38 755 709 681

Prepared by

AECOM Australia Pty Ltd

Level 21, 420 George Street, Sydney NSW 2000, PO Box Q410, QVB Post Office NSW 1230, Australia

T +61 2 8934 0000 F +61 2 8934 0001 www.aecom.com

ABN 20 093 846 925

29-Jul-2019

Job No.: 60602638

AECOM in Australia and New Zealand is certified to ISO9001, ISO14001 AS/NZS4801 and OHSAS18001.

© AECOM Australia Pty Ltd (AECOM). All rights reserved.

AECOM has prepared this document for the sole use of the Client and for a specific purpose, each as expressly stated in the document. No other

party should rely on this document without the prior written consent of AECOM. AECOM undertakes no duty, nor accepts any responsibility, to any

third party who may rely upon or use this document. This document has been prepared based on the Client’s description of its requirements and

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principles. AECOM may also have relied upon information provided by the Client and other third parties to prepare this document, some of which

may not have been verified. Subject to the above conditions, this document may be transmitted, reproduced or disseminated only in its entirety.

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Quality Information

Document Go Jindabyne Utilities and Servicing Strategy

Ref 60602638

Date 29-Jul-2019

Prepared by William Wong/Jeffrey Chan

Reviewed by Daniel Fettell

Revision History

Rev Revision Date Details

Authorised

Name/Position Signature

1 03-May-2019 For Review Daniel Fettell Project Manager

2 31-May-2019 For Review Daniel Fettell Project Manager

3 22-Jul-2019 Updated Draft Daniel Fettell Project Manager

4 29-Jul-2019 Updated Draft Daniel Fettell Project Manager

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Table of Contents

Executive Summary ii 1.0 Introduction 1 2.0 Site Overview 2

2.1 Study Area Description and Surrounding Area 4 2.2 Staging 4

3.0 Information Gathering 5 3.1 Gathering Existing Utilities Information 5 3.2 Dial Before You Dig (DBYD) Plans 5 3.3 Utility Reports and other studies 5 3.4 Development Context 6 3.5 Combined Services Plan 6 3.6 Current Network Capacity 6

4.0 Population Forecast and Urban Development 8 4.1 Population Centres 8 4.2 Population 8

4.2.1 Existing 8 4.2.2 Projected 9

4.3 Land Use 12 4.3.1 Residential Dwellings 16 4.3.2 Commercial and Others 18

5.0 Potable Water 20 5.1 Background 20 5.2 Existing Capacity 22 5.3 Demand Assessment 23 5.4 Forecast Demand 24 5.5 Preliminary Infrastructure Assessment 26

5.5.1 Existing Condition 26 5.5.2 Future Condition 27

6.0 Wastewater 30 6.1 Background 30 6.2 Existing Capacity 32 6.3 Demand Assessment 34 6.4 Forecast Demand 34 6.5 Preliminary Infrastructure Assessment 37

6.5.1 Existing Condition 37 6.5.2 Future Condition 37

7.0 Electrical 40 7.1 Background 40 7.2 Existing Capacity 41 7.3 Demand Assessment 44 7.4 Forecast Demand 45 7.5 Potential ESD Initiatives 47 7.6 Preliminary Infrastructure Assessment 48

8.0 Gas 50 8.1 Background 50 8.2 Existing On-Site Utility Infrastructure 50 8.3 Preliminary Infrastructure Assessment 51

9.0 Data and Communications 53 9.1 Background 53 9.2 Existing On-Site Utility Infrastructure 53 9.3 Preliminary Infrastructure Assessment 53

10.0 Decentralised Systems 56 11.0 Conclusion and Recommendations 57

11.1 Conclusion 57 11.2 Recommendations 58

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Executive Summary

The Go Jindabyne 2036 Masterplan provides an opportunity to deliver a clear vision for the hub of the Snowy Mountains and revitalise Jindabyne as Australia’s premier alpine destination.

A Utilities and Services Study is required to inform the Masterplan and provide an understanding of the relationship between Jindabyne and the wider Snowy Mountains region.

The purpose of this study is to gain a detailed understanding of the existing utilities capacity and projected demand for public and social infrastructure in Jindabyne, including recommendations for new infrastructure that will be needed to meet the forecast demand.

There are several existing utility services in and around the site which are summarised below and discussed in detail in this report:

• Potable Water: Drinking water is provided by the Snowy Monaro Regional Council primarily through intakes from Lake Jindabyne;

• Waste Water: Wastewater servicing is also provided by the Snowy Monaro Regional Council and effluent is treated through 7 sewerage treatment plants. Discharge from Jindabyne Sewer Treatment Plant is to Cobbon Creek;

• Electrical: Essential Energy is the electrical provider for the Jindabyne area with a zone substation and Jindabyne, Jindabyne East and a 1MW hydro generator at Jindabyne Dam;

• Gas: Preliminary searches indicate the presence of a small number of gas mains provided by Origin, further investigations are continuing; and

• Data and Telecommunications: There is a number of existing Telstra and NBN connections available in Jindabyne.

As a part of this Utilities and Servicing Study, the following authority consultation has been undertaken:

• Attendance of utility authorities project working groups;

• Review of Stage 1 reports by utility authorities; and

• Ongoing coordination meetings.

The indicative building service loads for the Go Jindabyne study area is summarised below; however it is noted that these are provided to inform lead-in infrastructure requirements only and are subject to change as part of design development:

• Potable water: 5.4 – 9.4 ML/day (Maximum Daily Demand);

• Wastewater: 15 - 26 L/s(Average Dry Weather Flow);

• Electrical: 10 - 15 MVA (Peak Demand);

• Gas: Unable to be calculated as per other services; and

• Data and Telecommunications: Unable to be calculated as per other services.

To ensure current capacity issues are addressed and to meet future growth demands in the study area, the following have been recommended for each utility service:

Potable Water

• Upgrade works for Jindabyne Intake WPS (JIWPS);

• Upgrade East Jindabyne Kunama Reservoir (KR) and East Jindabyne Reservoir (EJBWPS);

• Upgrade Jindabyne High Zone (HZR), Low Zone (LZR) Barry Way (BWR) and High Country (HCR) reservoirs;

• Upgrade East Jindabyne Water Pumping Station (EJBWPS);

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• Upgrade Jindabyne Low Zone (LZR), High Zone (HZR) and High Country (HCWPS) water pumping stations;

• Construction of new potable water mains in growth areas to service new developments in Jindabyne, East Jindabyne and South of Jindabyne; and

• Renewal of the water extraction license as required to meet growth in development.

Key water ESD initiatives recommended for further investigation as part of detailed design include:

o Rainwater harvesting; and

o Recycled water

Wastewater

• Upgrade of SPS’s that are expected to be capacity constrained including:

o Kalkite Street SPS2A (JSPS 2A);

o Kosciuszko Road SPS4 (JSPS4);

o Station Resort SPS5 (JSPS5);

o Leesville SPS6 (JSPS6);

o Siesta Villa SPS3 (EJSPS3);

o Jerrara Drive SPS4 (EJSPS4); and

o Kunama Drive SPS5 (EJSPS5).

• Construction of new sewer mains in Jindabyne, East Jindabyne and South of Jindabyne growth areas.

Key wastewater ESD initiatives recommended for further investigation as part of detailed design include:

o Expansion of existing recycled water network for irrigation of sports fields, golf courses and park land; and

o Grey water reuse strategies.

Electrical

• New 11kV feeder routes to support the proposed new developments; and

• New Kiosk substations to service new development.

Key electrical ESD initiatives recommended for further investigation as part of detailed design include;

o Community solar schemes combined with battery storage;

o Localised microgrids;

o Building orientation;

o Electric car charging;

o Centralised heat extraction system;

o Geothermal heating;

o Smart metering; and

o Glazing options to improve thermal comfort and reduce heating and cooling loads.

Data and Communications

• Improvements to data and communication connection coverage through 5G technologies and roll out of a public WiFi network.

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1.0 Introduction

The Department of Planning and Environment (DP&E) has engaged AECOM to undertake a Utilities and Services Study for Jindabyne to inform a 2036 Masterplan.

The purpose of the utilities scope is to identify existing utility infrastructure with consideration for layout and capacity for new utilities to meet forecast demand, including further detail on potential utility connection locations specific to the Jindabyne Precinct.

This report has been developed to inform the master planning of the Jindabyne Precinct. It is important to note that only preliminary master plan options have been assessed as part of this report.

Specifically, this report:

• Summarises the existing services infrastructure located within the Jindabyne Precinct;

• Advises on opportunities and constraints; and

• Provides advice on potential infrastructure upgrades to support the master plan.

This Utilities and Servicing Study considers the following services infrastructure:

• Potable Water;

• Wastewater;

• Electrical;

• Gas; and

• Data and Communications.

It should be noted that details of existing infrastructure found in this report are based on drawings and data provided by utility authorities. This information will need additional confirmation through site investigations prior to the commencement of any further utility design, including approvals by utility authorities.

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2.0 Site Overview

Jindabyne is the fastest growing local centre within the Snowy Monaro Regional Council local government area (LGA) located in south-east New South Wales, approximately 60km west of Cooma and 180km south-west of Canberra. In the wider Snowy Mountains region, Jindabyne’s surrounding villages include Adaminaby, Berridale and Dalgety.

As a gateway to the Snowy Mountains, Jindabyne is a sought-after tourist destination which brings about seasonal population changes, attracting over 1.3 million visitors in different times of year. The study area is comprised of low to medium density residential, commercial usage and major open spaces.

The extents of the Jindabyne investigation area are shown below in Figure 1.

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Areas of potential intensification

Sites identified for expansion

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2.1 Study Area Description and Surrounding Area

The Jindabyne study area is delineated in Figure 1. It is bounded by the surrounding settlements of Adaminaby, Berridale, Cooma and Dalgety which lie in the wider Snowy Mountains region.

While the Jindabyne area has a large amount of existing infrastructure, upgrades and diversions to this existing infrastructure are required to be investigated to meet the increased demand for community services, proposed developments and urban amenity to support the new master plan.

2.2 Staging

The exact staging of the proposed developments is still under consideration. The potential diversion and/or decommissioning of existing infrastructure (and any interim works that may be required to achieve this) is to be undertaken on the concept master plan options.

This report is primarily focused on the feasibility of servicing the ultimate development of the 2036 master plan from an infrastructure capacity perspective. The individual staging of utility services layouts will be considered during the detailed design of each study area.

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3.0 Information Gathering

3.1 Gathering Existing Utilities Information

The preliminary information data has been gathered from a range of resources. These include Dial Before You Dig (DBYD) requests, master plans, existing drawings supplied by the Department of Planning and Environment and relevant Councils, and condition reports.

3.2 Dial Before You Dig (DBYD) Plans

DBYD requests were undertaken from the study area. The DBYD report identifies a range of services present within the study area and is summarised in Table 1 below.

Table 1 Summary of Existing Services

Authority Name Utility Type

APA (For Origin Energy LPG), NSW South Gas & Petroleum

Essential Energy Electricity

NBN Co, NswAct Communications

Telstra NSW, South Communications

Optus/Uecomm NSW Communications

Snowy Monaro Regional Council1 Potable Water

Snowy Monaro Regional Council1 Wastewater

Snowy Monaro Regional Council1 Stormwater 1Not shown in DBYD

3.3 Utility Reports and other studies

Several reports and master plans have been prepared providing information relevant to the study area. Below is the list of reports used in this preliminary infrastructure assessment:

• South East and Tablelands Regional Plan 2036 (2017);

• Snowy Monaro Regional Council 2040 Community Strategic Plan (2018);

• Snowy Monaro Regional Council Administrator’s Report to the Community (2017);

• Snowy River Shire Council Residential Aged Care Plan 2018-2028;

• Snowy River Shire Council Jindabyne Sewerage Scheme (October 2010);

• Snowy River Shire Council Integrated Water Cycle Management Plan (July 2012) and Detailed Strategy Study (February 2014);

• City Plan, Jindabyne Housing and Demographic Study (April 2019);

• Essential Energy Asset Management Distribution Annual Planning Report (December 2018);

• HillPDA Consulting, Go Jindabyne Economic Development Study (May 2019); and

• McShane, I. & Wilson, C. K., 2017. Public wi-fi Australian cities: are there lessons for 'smart city' government?, s.l.: RMIT University.

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3.4 Development Context

The Department of Planning and Environment (DPE) announced the ‘Go Jindabyne 2036’ Masterplan which intends to revitalise the gateway town and transform it into the nation’s premier alpine destination. This plan aims to investigate opportunities to strengthen the town’s year-round tourism sector, enhance access to jobs and services and improve transport connections while maintaining the unique character of the Snowy Mountains. To support future demand for Jindabyne’s proposed development, the Masterplan also sets out to investigate links and opportunities in surrounding towns and villages including Adaminaby, Berridale, Cooma and Dalgety.

Other planned developments that have been considered in this investigation include recently approved developments by the Snowy Monaro Regional Council, Jindabyne Town Centre Masterplan 2013 and the Jindabyne Central School Upgrade 2018.

3.5 Combined Services Plan

A combined services plan has been developed for the Jindabyne study area which identifies existing utility service locations to provide an overview of potential utility gaps.

All services are shown schematically and are subject to changes during subsequent design stages and further inputs from relevant utility authorities. Schematic layouts for each existing utility service are outlined in individual sections of this report.

A preliminary combined service plan is shown in Figure 2.

3.6 Current Network Capacity

Analysis of the current network capacity has been taken from existing data provided by utilities authorities and records from the Snowy Monaro Regional Council. Due to the influence of visitor numbers on service loadings, summer and winter data have been distinguish as maximum and minimum loads in the calculated demand estimates.

Assessment of the current network capacity has been provided for:

• Potable Water;

• Wastewater; and

• Electrical assets.

Potable water and Wastewater

Reports prepared for the Snowy River Shire Council including the Integrated Water Cycle Management Plan by HydroScience Consulting and the Jindabyne Sewage Scheme by MWH have been referenced in this report to provide a basis for existing capacity assessment. These reports provide background information on pump stations and treatment plant locations and their capacities and data on water license volumes accessible by the developments in the study area.

Electrical

Existing electrical capacity and network limitations for the Jindabyne study area have been made available by the energy provider Essential Energy. Electrical infrastructure and capacities summarised in the Essential Energy 2018 Distribution Annual Planning Report (DAPR) have been used for assessing capacity constraints in this report.

Gas

There is limited information available on the existing gas network and its capacity. It is expected that the gas reticulation will not be expanded to service any future development due to the unfeasibility of a centralised gas network in the study area.

Telecommunications

Existing telecommunications servicing has been taken from the NBN rollout maps, including the type of servicing available in each area.

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4.0 Population Forecast and Urban Development

4.1 Population Centres

The main population centres within the Go Jindabyne study area include Jindabyne, East Jindabyne and South of Jindabyne. These urban centres are currently well serviced and are expected to experience significant population and demographic changes.

Population and demographic information of these localities have been taken from census data available from the Australian Bureau of Statistics (ABS) as well as from the Jindabyne Housing and Demographic Study (City Plan, 2019). The collected data provides a basis for which utilities and servicing capacities can be assessed for current and projected usages.

Land use information of the study area obtained from the Cooma-Monaro Local Environment Plan (LEP), 2013 provides an overview of current building typologies and any council approved developments which may have implications towards existing and projected utilities servicing capability. Figure 4 at the end of this section illustrates the nominated land zoning types for the study area highlighting locations with potential changes in servicing demands in the future.

4.2 Population

4.2.1 Existing

The current population for the study area has been taken from ABS data and Jindabyne Housing and Demographic Study (City Plan, 2019) which have been adopted for the purposes of services demand analysis in this report.

There is no available census data that corresponds exactly with the study area and demographic trends. However, an area combining Statistical Area 1s (SA1s) has been adopted to provide an approximate figure for the existing residential population locally. At the time of the 2016 Census, there was a total permanent population of 2,907 for the SA1 study area.

A breakdown of the SA1 population centres for the GoJindabyne study area is shown in Table 2.

Table 2 Usual resident population of the Go Jindabyne Study Area, 2016

SA1 (short number)

Location/geographic name 2016 usual resident population

1609 Rural balance (south of Lakewood Estate)

300

1613 Lakewood Estate 228

1614 Jindabyne West 357

1615 Jindabyne South 362

1616 Jindabyne Central 435

1617 Jindabyne East 416

1618 East Jindabyne (incl. Tyrolean Village) 606

1620 Jindabyne North 203

Total Area 2,907

Source: Jindabyne Housing and Demographic Study (City Plan, 2019)

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The existing population for the Jindabyne-Berridale SA2 area including visitor numbers is shown below and indicates the winter (maximum) and summer (minimum) season population accounting for visitors which was 27,882 and 11,221 respectively.

Table 3 Current Peak Population

Location/Geography Usual Residential Population (2016)

Visitor Population (Peak Average daily per month)

Total

Jindabyne-Berridale (SA2)

Winter 7,071 20,751 27,882

Summer 7,071 4,150 11,221


4.2.2 Projected

A projection model for Jindabyne-Berridale (SA2) prepared as part of the Jindabyne Housing and Demographic Study, (City Plan, 2019) provides a detailed estimation of population growth with four different growth scenarios undertaken.

Under these scenarios, the expected usual residential population of Jindabyne-Berridale SA2 for the years up to 2036 have been outlined below.

Table 4 Jindabyne-Berridale SA2 projected usual population

Jindabyne-Berridale SA2

Scenario projections

2016 2021 2026 2031 2036

Sc1 baseline 7,071 7,341 7,662 7,957 8,204

Sc2 extra accom

7,071 7,383 7,784 8,217 8,593

Sc3 ext season

7,071 7,373 7,696 8,055 8,370

Sc4 supercharged

7,071 7,414 7,896 8,442 8,965


A comparison of usual populations in Table 3 and Table 4 shows that the Go Jindabyne study area comprises approximately 42% of the overall Jindabyne-Berridale (SA2) population. This factor has been applied to the usual population forecast and is shown in Table 5.

Table 5 Go Jindabyne Study Area projected usual population

Go Jindabyne Study Area – Usual Population

Scenario projections 2016 2021 2026 2031 2036

Sc1 baseline 2,970 3,083 3,218 3,342 3,446 Sc2 extra accom 2,970 3,101 3,269 3,451 3,609 Sc3 ext season 2,970 3,096 3,232 3,383 3,515 Sc4 supercharged 2,970 3,114 3,316 3,546 3,765

An experimental forecast for the future number of visitors using an upper and lower bound has been adopted from the Jindabyne Housing and Demographic Study, (City Plan, 2019).

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The lower bound scenario adopts a constant increase of visitors from NSW while the upper bound scenario assumes an extended 10% growth of visitors per year. The projected peak numbers of daily visitors are shown below in Table 6 and Table 7.

Table 6 Projected Peak Average Daily Number of visitors (Lower bound forecast)

Peak Average Daily Number of visitors per Month (Lower Bound)

Winter (max)

Summer (min)

2016 7,055 1,411

2021 8,512 1,702

2026 10,288 2,058

2031 12,100 2,420

2036 13,895 2,779

Source: Jindabyne Housing and Demographic Study (2019, City Plan) based on Tourism Research Australia’s 2017 forecasts out to 2026-2027

Table 7 Projected Peak Average daily Number of Visitors per Month (Upper bound forecast)

Peak Average Daily Number of visitors per Month (Upper Bound)

Winter (max) Summer (min)

2016 7,761 1,552

2021 9,363 1,873

2026 11,317 2,263

2031 13,310 2,662

2036 15,285 3,057


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By combining the projected usual residential population with the expected visitor population, an estimate for the future total population can be deduced. The lower bound estimate considers the baseline usual residential population scenario and the lower bound average daily peak visitor numbers to generate the lowest possible population forecast.

While the upper bound estimate considers the supercharged usual residential population scenario and the upper bound average daily peak visitor numbers to produce the highest possible population forecast. These two forecasts have been summarised in Table 8 and Figure 3 and show a gradual increase in peak and off-peak populations ranging between 6,225 to 19,050 by the year 2036.

Table 8 Experimental forecasts of the future total population (Jindabyne-Berridale SA2, 2016-2036)

Total Forecast Population

Scenario 2016 2021 2026 2031 2036

Winter Summer Winter Summer Winter Summer Winter Summer Winter Summer

Lower Bound

10025 4381 11625 4494 13604 5276 15646 5762 17660 6225

Upper Bound

10731 4522 12477 4956 13787 5481 16856 6004 19050 6503

Figure 3 Jindabyne-Berridale SA2 Total population Projection (incl. visitors)


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4.3 Land Use

While much of the Go Jindabyne study area is residential area and land zoned for primary production as illustrated in Figure 4, the main centres of Jindabyne, East Jindabyne and South of Jindabyne which comprise of social infrastructure, commercial retail, office and industrial developments.

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Land ZoningB1 Neighbourhood CentreB2 Local CentreE2 Environmental ConservationE3 Environmental ManagementIN1 General IndustrialR1 General ResidentialR2 Low Density ResidentialR5 Large Lot Residential

RE1 Public RecreationRE2 Private RecreationRU1 Primary ProductionRU5 VillageSP1 Special ActivitiesSP2 InfrastructureSP3 Tourist

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Areas earmarked for potential development expansion or intensification has been highlighted by the Hill Thalis masterplan development options shown in Figure 5. These proposed areas consider approved development applications and align with masterplans already in place. Yellow represents areas of possible development intensification while purple indicates areas already planned for expansion. The plan shows preferred layouts of the sites only.

Major development initiatives include but are not limited to:

Jindabyne Town Centre:

• Increased density in lots with frontages to Kosciusko Road to incentivise new connections;

• Revitalisation of the shopping centre district and extension of vertical development to enhance pedestrian friendly focus;

• Establishment of a small commercial/mixed use precinct in Nettin Circuit;

• New civic spaces including library and community square;

• Upgrade of Jindabyne Central School and provide new aged care facilities; and

• Residential development south of town centre.

East Jindabyne:

• Residential development towards Lake Jindabyne with improved connectivity to East Jindabyne; and

• Reconfigure Snowy-Hydro lands for a more legible layout.

South of Jindabyne:

• Allow for modest expansion of the Leesville Estate Employment Lands – focusing on high tech/ light industrial uses;

• Upgrade waste water treatment plant and improve urban stormwater treatment to re-establish health of the river system; and

• Increased density of lots along Barry Way and the Snowy River Way.

It should be noted that these are potential developments only and have been included for the purposes of utilities and services infrastructure planning. These may not reflect community approved or actual developments in the future.

GROW JINDY


Areas of intensification

Source: Hill Thalis, 2019

Figure 5 - Potential DevelopmentIntensification and Growth Areas (Draft)

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4.3.1 Residential Dwellings

Existing

The total number of dwellings in the main centres captured in the 2016 Census are summarised in Table 9 below. There are currently 892 recorded residential dwellings within the main centres of the Go Jindabyne study area.

Table 9 Existing Number of Dwellings for Go Jindabyne Study Area

Dwellings Structure Jindabyne East Jindabyne South of Jindabyne

Separate house 273 186 73

Semi-detached, row or terrace house, townhouse, etc

163 3 0

Flat or apartment 179 8 0

Other Dwelling 7 0 0

Total 622 197 73

Source: ABS available at https://www.abs.gov.au , accessed 2019

The Jindabyne Housing and Demographic Study (2019, City Plan) separates the study area into 17 different precincts to determine the current capacity and trends in residential zoning. The findings of this study indicated that the study area has an approximate capacity of additional 891 dwelling houses/lots and 1,554 dual occupancy dwellings.

There are currently two Planning Proposals (PP) being assessed by the DPE and if approved, an additional 18 dual occupancy dwellings could be accommodated for. Bringing the available dwelling capacity to 909 dwelling houses/lots and 1572 dual occupancy dwellings.

Projected

According to the Jindabyne Housing and Demographic Study (City Plan, 2019) the projected usual residential dwellings was derived by factoring the permanent population by 1.47. This was the average number of people per household indicated in the 2016 Census adjusted for unoccupied dwellings.

Table 10 provides an estimate of the projected dwellings for usual residents up to 2036.

Table 10Projected Dwellings for Usual Residents (Go Jindabyne Study Area)

Projected Dwellings for usual residents

Projected Dwellings

2016 2021 2026 2031 2036

Sc1 Baseline 2085* 2,297 2,398 2,490 2,567

Sc4 Supercharged

2085* 2,320 2,471 2,642 2,805

*Existing private dwellings in GoJindabyne Study Area from 2016 Census data (ABS, 2016)

To calculate the required visitor accommodation, an average split between groups of travellers and the required number of bedrooms was adopted. Data for the percentage split in travel party was taken from Destination NSW for the Snowy Mountains in 2018. An assumed number of bedrooms were then used for each group as shown in Table 11.

https://www.abs.gov.au/

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Table 11 No. of bedroom assumption

Group Estimated Split

Assumed No. of bedrooms

Travelling alone 17% 1 bedroom

Adult Couple 25% 1 bedroom

Family Group 23% 2 bedroom

Friends/Relatives 35% 3 bedroom

Source: Jindabyne Housing and Demographic Study City Plan 2019

The below table provides an overview of the estimated number of bedrooms required for every 5 years up to 2036 based on assumed visitor populations shown in Table 6 and Table 7.

Table 12 No. of Bedrooms (Go Jindabyne Study Area)

No. of Visitor Bedrooms Required

2016 2021 2026 2031 2036

Group Lower Upper Lower Upper Lower Upper Lower Upper Lower Upper

Travelling Alone 240 1,319 289 1,592 350 1,924 411 2,263 472 2,598

Adult Couple 353 1,940 426 2,341 514 2,829 605 3,328 695 3,821

Family Group 162 892 196 1,077 237 1,301 278 1,531 320 1,758

Friends/relatives 165 905 199 1,092 240 1,320 282 1,553 324 1,783

Total 920 5,057 1,109 6,101 1,341 7,375 1,577 8,674 1,811 9,961

The average number of bedrooms per dwellings according to the 2016 ABS Census for the Jindabyne-Berridale SA2 was 3.2. This was applied to the number of bedrooms required for visitors in the study area to derive the number of dwellings needed to service the projected increase in visitor population. The lower case considers the minimum projected visitor numbers during the season while the upper case considers the maximum projected visitor numbers during the season.

Table 13 No. of visitor dwellings (Go Jindabyne Study Area)

No. of Visitor Dwellings Required

2016 2021 2026 2031 2036

Group Lower Upper Lower Upper Lower Upper Lower Upper Lower Upper

Travelling Alone 71 388 85 468 103 566 121 666 139 764

Adult Couple 104 571 125 688 151 832 178 979 204 1,124

Family Group 48 262 58 317 70 383 82 450 94 517

Friends/relatives 48 266 58 321 71 388 83 457 95 524

Total 270 1,487 326 1,795 394 2,169 464 2,551 533 2,930

Table 14 summarises the total number of dwellings required for the Jindabyne Study Area to meet the forecast population increase accounting for lower and upper bound visitor forecasts prepared by City Plan 2019.

It is the sum of the usual (baseline and supercharged scenarios) and visitor residence dwellings (seasonal min and max) respectively shown in Table 12 and Table 13 above. By 2036, the required number of dwellings will range between 3,100 in summer and 5,735 in winter. This is approximately 1,015 to 3,650 more dwellings than currently available.

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Table 14 No. of dwellings for total population (Go Jindabyne Study Area )

No. of Dwellings for Total Population (Usual Residents and Visitor Pop.)

2016 2021 2026 2031 2036

Dwelling Purpose

Lower Upper Lower Upper Lower Upper Lower Upper Lower Upper

Usual Residence

2,085* 2,085* 2,297 2,320 2,398 2,471 2,490 2,642 2,567 2,805

Visitor Residence

270 1,487 326 1,795 394 2,169 464 2,551 533 2,930

Total 2,355 3,572 2,624 4,115 2,792 4,640 2,954 5,193 3,100 5,735

*Existing number of dwellings based on 2016 ABS Census data.

4.3.2 Commercial and Others

Existing

The Jindabyne Town Centre is around 18 Ha in size comprising of non-residential and non-accommodation commercial floor space. Retail areas in the study area are concentrated in a strip of commercial development facing Kosciuszko Road. This includes a major supermarket, offices, cafes, restaurants and medical centres totalling 119 non-residential business units with an approximate leasable Gross Floor Area (GFA) of 27,960m2 as detailed in the Go Jindabyne Economic Development Study (Hill PDA Consulting, 2019).

The Lakewood Estate/Leesville Industrial precinct located along Barry Way comprises of area designated for light industrial purposes. Activities in this precinct include trade supplies, mechanics and workshops. There are currently 52 industrial businesses taking up 27,844m2 of GFA (Hill PDA Consulting, 2019).

Projected

As there is no available information on the forecast commercial and industrial development, an average GFA growth rate of 5% based on projected residential population growth has been applied.

Table 15 Forecast Non-residential Floor Space

Forecast Non-Residential

Jindabyne Town Centre DRAFT Masterplan 2013 - Proposed Land Use by GFA

Unit 2016 2021 2026 2031 2036

Commercial Ha 2.80 2.94 3.08 3.24 3.40

Light Industrial Ha 2.78 2.92 3.07 3.22 3.38

Snowy Mountains Grammar School

The Snowy Mountains Grammar School has a student population of 270 with 75 students in the Junior School and 195 in the Senior School.

Jindabyne Central School

The NSW Government has committed to upgrading the Jindabyne Central School located on Park Road, Jindabyne with a student population of 822 in 2018.

The project will include:

• An integrated library (approx. 750m2) and education community hub (350m2) building for potential use by the community ;

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• New permanent classrooms;

• Refurbishment and repurposing of various existing buildings;

• Upgrade to existing sports field; and

• Updates to the existing canteen and student toilet block.

The planned upgrade is expected for be complete by mid-2020.

Aged Care Accommodation

The Jindabyne Housing and Demographic Study (City Plan 2019) estimates that for residents aged over 85, they will most likely require specialised aged care accommodation and support services. Based on demographic data presented in the aforementioned report, by 2036, an additional 159 residents will be over 85 and therefore will require an additional 159 aged care beds. This is reflected in Table 16 below. Of this forecasted population in Jindabyne-Berridale (SA2), 35% is assumed to be located in the study area.

Table 16 Over 85 Forecast (baseline scenario)

Age Group 2016 2021 2026 2031 2036

Over 85 (Jindabyne-Berridate SA2)

59 93 113 155 218

Over 85 (GoJindabyne Study Area)

21 33 40 54 76

Source: Jindabyne Housing and Demographic Study (City Plan 2019)

Projected Non-Residential Development

A summary of the projected non-residential development to 2036 is shown in Table 17. These are estimates only and make assumptions based on known information at the time of writing of this report.

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Table 17 Forecast Non-Residential Developments

Forecast Non-Residential

Proposed Land Use Year Unit 2016 2021 2026 2031 2036

Commercial

GFA(Ha) 2.80 2.94 3.08 3.24 3.40

Light Industrial1 GFA(Ha) 2.78 2.92 3.07 3.22 3.38

School (SMGS) No.Pupils 500 500 500 500 500

School (Jindabyne Central School)

No.Pupils 1000 1000 1000 1000 1000

Aged Care Beds 21 33 40 54 76

5.0 Potable Water

5.1 Background

The SMRC provides reticulated water supply to the greater Jindabyne area primarily from the Lake Jindaybne water source with three key licences under the Water Act 1912 and issued by the NSW Department of Planning, Industry and Environment:

• Jindabyne – 1153.4 ML / Year available water, approval # 10CA119619;

• East Jindabyne and Berridale – 785.3 ML / Year available water, approval # 10CA119612; and

• Kalkite – 197.1 ML / Year available water, approval # 10CA119613.

The Jindabyne and East Jindabyne water supply schemes are split into the following water basins:

• High Country Zone;

• Jindabyne Barry Way Zone;

• Jindabyne High Zone;

• Jindabyne Leesville Zone;

• Jindabyne Low Zone;

• Kunama Zone;

• Lakewood Zone; and

• Old Jindabyne Road.

A summary of the existing potable water network is shown overleaf in Figure 6

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Figure 6 - Existing Potable Water

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Water Basin Zones

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5.2 Existing Capacity

The existing potable water network servicing the Jindabyne study area has been identified based on DBYD records, SMRC water asset data as well as the Snowy River Shire Council Integrated Water Cycle Management Plan 2012 and Integrated Water Cycle Management Detailed Strategy Study 2014. These plans specify the presence of a number of water pumping stations, reservoirs and reticulation mains servicing the study area while the study reports provide an assessment of capacities and anticipated limitations.

Key existing potable water network infrastructure within the study area includes potable water intake at the following locations:

SMRC Study Area Intakes

Name Location

Capacity (ML/Day)

Year Commissioned

EIWPS East Jindabyne 8.6 1981

JIWPS Jindabyne Water Intake Pumping Station (HL/LZ intake)

8.6 1981

Total 17.2

The existing water network consists of a large number of water reservoirs, with the key ones for Jindabyne being the following:

SMRC Study Area Reservoirs

Name Location Capacity

Year Commissioned

EJBWPS East Jindabyne Booster x 2 2 X 0.17 ML 1981

KR East Jindabyne (Kunama) 2.5 ML 1991

JIWPS Jindabyne IWPS 0.1 ML 1981

LZR Jindabyne Low Zone 1.2 ML 1981

HZR Jindabyne High Zone 2 ML 1981

BWR Jindabyne Barry Way 2.5 ML 1981

LeR1 Jindabyne Leesville 2 x 0.11 ML 1981

HCR Jindabyne High Country 0.091 ML 1981

LWPS Jindabyne Lakewood x 5 5 X 0.097 ML 1981

Total 9.4 ML

The existing potable water network is also serviced by a number of water pump stations comprising the following:

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SMRC Study Area Water Pump Stations

Name Location Capacity Year Commissioned

EJBWPS East Jindabyne Booster

2 X 250 KW @ 50 l/s 1991

LZR Jindabyne Low Zone Booster

2 X 18.5 KW @ 19.2 l/s

1981

HZR Jindabyne High Zone Booster

3 X 30 KW @ 23.2 l/s 1981

LWPS Jindabyne Lakewood Booster

2 X 30 KW @ 14 l/s 1981

HCWPS Jindabyne High Country Booster

2 X 2.2 KW @ 1.5 l/s 1981

LEWPS Jindabyne Leesville Booster

2 X 30 KW @ 30 l/s 1981

Water is transported via Water Pump Stations (WPS) through a large number of water reticulation mains connecting the areas of Jindabyne, East Jindabyne and South of Jindabyne and are shown in Figure 6.

The network is physically constrained by the steep and sloping topography, resulting in the need for a large number of pump stations and comparatively expensive pipework to protect the asset from landslides or other geotechnical conditions.

There is also a recycled water scheme that was commissioned in June 2010 and recommissioned in June 2011 to transport recycled water from the Berridale Sewer Treatment Plant to the Coolamatong Golf Course for irrigation purposes.

It is noted that the above discussion only considers SMRC water infrastructure, there is the potential that private and/or other authority water infrastructure is present on the site, however, no records of this infrastructure has been made available for this study and have not been identified on the DBYD plans. Onsite utility investigations and service searches are recommended as part of any future development applications.

5.3 Demand Assessment

An assessment of the increase in potable water demand generated by projected population growth has been made to determine the required infrastructure upgrades needed to match this development.

Demand estimates for potable water have been calculated using the Design Criteria Guidelines Supplement for Single Reticulation System (Sydney Water, 2014) and is based on Maximum Daily Demand (MDD) (also known as ‘peak day demand’). The BASIX reduction has been taken from the Building Sustainability Index targets applying to residential units only.

A summary of the water demand unit rates is presented in Table 18

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Table 18 Potable Water Demand Unit Rates

Land Use Design

Criteria Units

Potable Water

Maximum Daily

Demand

Sources

Residential (incl single dwelling, townhouse <30 units/net/ha)

Max Day Demand

kL/dwelling/day

2.2

Water Planning Guideline Section 3: Water Demand and Growth (Sydney Water, 2014) Table 3-2

Suburban Commercial Max Day Demand

kL/Ha1/day 41


Light Industrial Max Day Demand

kL/Ha1/day 40


Aged Accom Max Day Demand

kL/bed/day 0.5 Sydney Water Average Daily Water use by property development type

Hotel/Motel/Serviced apartments

Max Day Demand

kL/room/day 0.7 Sydney Water Average Daily Water use by property development type

School / Secondary (1,000 pupils)

Max Day Demand

kL/day 180 Water Supply Code of AustraliaWSA 03-2002-2.2 Table 2.1

BASIX Reduction % 30

Building Sustainability IndexTargets

1Net hectare is gross floor area of building

Where Max Day Demand = Average day demand x Peak Day Factor (PDF)

5.4 Forecast Demand

An estimate of the future potable water demand for the Jindabyne study area generated from theprojected population growth has been calculated based on figures provided by the City PlanJindabyne Housing and Demographic Study, 2019 as well as census data from the AustralianBureau of Statistics (ABS). The forecast number of residential dwellings and non-residentialdevelopments outlined in Table 14 and Table 17 respectively has been used in this potable water

demand analysis.

The study has classified potential residential developments based on housing density which are‘Single Dwelling Residential’ with an equivalent maximum day demand rate of 2.2 kL/dwelling/day. Thecommercial density has been estimated on an equivalent potable water demand rate of 41 kL/ha/daywhile other non-commercial developments have demand unit rates as shown in Table 18.

In accordance to BASIX reduction targets for the SMRC LGA area, new residential developments inNew South Wales are required to reduce mains supplied potable water consumption by 30% (sincethe introduction of the BASIX amendment in 2006) compared to the average NSW dwelling. Non-residential demands do not have a BASIX reduction target applied. The cumulative MDD of the GoJindabyne study area when incorporating BASIX compliance is estimated to range between 5.3 – 9.4ML/day by 2036 as summarised in Table 19.

Indicative potable water service loads are shown below; however it should be noted that these havebeen provided to inform lead-in infrastructure requirements only and are subject to changes as part ofdesign development. These are indicative estimates and rely on population projections prepared byAlpha Demographics and Planning Information, and City Plan Strategy and Development. They havebeen derived based on current ratios, shares and relationships which may not hold true in the future.

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Table 19 Estimated Cumulative Maximum Daily Potable Water Demand (Go Jindabyne Study Area)

Potable Water Demand (incl. BASIX)- Cumulative Based on dwelling number increase

GoJindabyne Study Area by Land Use

Maximum Daily Water Demand (kL/day)

2016 (present) 2021 2026 2031 2036

Lower (summer)

Upper (winter)

Lower (summer)

Upper (winter)

Lower (summer)

Upper (winter)

Lower (summer)

Upper (winter)

Lower (summer)

Upper (winter)

Residential

Usual 3,211 3,211 3,538 3,573 3,692 3,805 3,834 4,068 3,954 4,320

Visitor 416 2,291 502 2,764 607 3,340 714 3,929 820 4,512

Sub-Total 3,627 5,502 4,040 6,336 4,300 7,145 4,549 7,997 4,774 8,832

Non-residential

Commercial 115 115 120 120 126 126 133 133 139 139

Light Industrial 111 111 117 117 123 123 129 129 135 135

School (1000

students) 180 180 180 180 180 180 180 180 180 180

School (500 students)

90 90 90 90 90 90 90 90 90 90

Aged Care 10 10 16 16 20 20 27 27 38 38

Sub-Total 506 506 524 524 539 539 559 559 583 583

Total Water Demand

(kL/day) 4,134 6,008 4,564 6,860 4,839 7,684 5,107 8,556 5,357 9,415

Total Water Demand (ML/day)

4.13 6.01 4.56 6.86 4.84 7.68 5.11 8.56 5.36 9.41

Go Jindabyne Study Area by Locality

Maximum Daily Water Demand (kL/day)

Jindabyne 3,307 4,806 3,651 5,488 3,871 6,147 4,086 6,845 4,285 7,532

East Jindabyne 413 601 456 686 484 768 511 856 536 941

South of Jindabyne 413 601 456 686 484 768 511 856 536 941

Total Water Demand (kL/day)

4,134 6,008 4,564 6,860 4,839 7,684 5,107 8,556 5,357 9,415

Total Water Demand

(ML/day) 4.13 6.01 4.56 6.86 4.84 7.68 5.11 8.56 5.36 9.41

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Figure 7 Maximum Daily Potable Water Demand (Go Jindabyne Study Area)

5.5 Preliminary Infrastructure Assessment

5.5.1 Existing Condition

The Integrated Water Cycle Management Detailed Strategy Study (HydroScience, 2014) identified a number of potable water supply issues including:

• Lake Jindabyne is an unprotected water source and has potential high risk to drinking water quality;

• Drinking water quality issues across a number of Water Supply Systems exceeding ADWG guidelines;

• Uncertainty of population numbers and peak population impacting SRSC’s ability to determine appropriate estimates of future water supply and sewerage demand;

• Power supply in Jindabyne, East Jindabyne and Tyrolean Village is unreliable and may cause interruptions to water supply;

• Insufficient Water Extraction Licence water allocation to supply Jindabyne township annual demand by 2018 and previous exceedances of water extraction licences;

• Need for high chlorine dosing at East Jindabyne;

• Difficulties in attracting and retaining qualified personnel; and

• A number of intakes, pumping stations and reservoirs in poor condition and requiring rectification work. Detailed design stages will need to consider the relative benefit of ongoing operating and maintenance costs and reliability impacts for aged assets. The following assets have been identified for rectification works:

-

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

2016 2021 2026 2031 2036

MD

D k

L/D

ay

Year

Forecast Potable Water MDD

Total Water Demand Highest Total Water Demand Lowest

Total Intake Capacity Total Reservoir Capacity

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Jindabyne

o Jindabyne Water Intake pumping station in poor condition (rating 1 out of 10)

o Jindabyne Low Zone water pumping station in poor condition (rating 1 out of 10)

o Barry Way WPS in poor condition (rating 1 out of 10)

o Lakewood Estate WPS in poor condition (rating 1 out of 10)

o High Country Estate WPS in poor condition (rating 1 out of 10)

o Leesville WPS in poor condition (rating 1 out of 10)

East Jindabyne

o East Jindabyne WPS in poor condition (rating 1 out of 10)

o Kunama reservoir roof asset in poor condition (rating 3 out of 10)

o East Jindabyne reservoir roof asset in poor condition (rating 1 out of 10)

5.5.2 Future Condition

The proposed intensification and expansion of development as outlined in Section 4.3 and population growth will increase water demand in the area. The projected MDD by 2036 has been included in Table 20.

Table 20 Future Water Capacity

Name Capacity (ML/day)

Current MDD(ML/

day)

Future MDD (ML/day)

Percentage Increase (%)

Future Operating Capacity

(%)

Intake Capacity

EIWPS 8.6 0.6 0.94 +57% 10.9%

JIWPS 8.6 5.4 8.44 +56% 98.1%

Reservoir Capacity

Jindabyne and East Jindabyne

9.4 6.0 9.415 +56% 100.2%

According to the MDD forecast shown in Figure 7, the Go Jindabyne study area may reach total intakecapacity by 2031 and reservoir capacity by 2036. To maintain adequate supply of water to service thestudy area population, the total capacity of intakes and reservoirs should be equivalent to MDD toprovide for variances in demand, firefighting water and supply interruptions.

Based on the condition assessment in the Integrated Water Cycle Management Detailed StrategyStudy and MDD analysis for projected residential and non-residential development, the followingupgrade works will be required to address current capacity issues and to meet future growth demands:

Intake

• Upgrade works for Jindabyne Intake WPS (JIWPS) – mechanical and electrical components.

Reservoir

• Upgrade East Jindabyne Kunama Reservoir (KR) and East Jindabyne Reservoir (EJBWPS) –repairs to reservoir roof assets; and

• Upgrade Jindabyne High Zone (HZR), Low Zone (LZR) Barry Way (BWR) and High Country(HCR) reservoirs - potential increase in capacities due to uplift in development in servicedcatchment.

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Water Pumping Station

• Upgrade East Jindabyne Water Pumping Station (EJBWPS) – mechanical and electrical components; and

• Upgrade Jindabyne Low Zone (LZR), High Zone (HZR) and High Country (HCWPS) water pumping stations – mechanical and electrical components.

Water Mains

• New pipe work in growth areas to service new developments in Jindabyne, East Jindabyne and South of Jindabyne.

Aside from the technical constraints, the current water extraction license issued by the NSW Department of Planning, Industry and Environment and WaterNSW is a major constraint given the overall projected increase in usual and visitor population numbers.

A summary of these are shown overleaf in Figure 8.

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BWR Barry Way ReservoirEIWPS East Jindabyne Intake WPSEJBWPS East Jindabyne WPSHCR High Country ReservoirHCWPS High Country WPSHZR Jindabyne High Zone ReservoirJIWPS Jindabyne Intake WPSKR Kunama ReservoirLeR1 Leesville Reservoir 1 & 2LEWPS Leesville WPSLWPS Lakewood WPS and Balance TankLZR Jindabyne Low Zone Reservoir

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Jindabyne

South ofJindabyne

Potential connectionto existing RE WaterPipe (High CountryZone)

Potential connection to existing Water Pipe (Kumama Zone)

Potential connectionto existing Water Pipe(Jindabyne BarryWay Zone)

Potential connectionto existing Water Pipe(Jindabyne BarryWay Zone)

Potential connection toexisting Water Pipe(Jindabyne High Zone)

Potential new water main

Water Basin Zones



Legend:Poor Condition

Moderate Condition

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6.0 Wastewater

6.1 Background

Wastewater within the Jindabyne study area is managed by the SMRC through the Jindabyne Sewerage Treatment Plant (STP) as well as a number of privately owned sewage treatment plants notably at resorts. Wastewater other than in the townships and resorts are treated using approved on-site management systems such as but not limited to:

• Septic tanks;

• Wet composting; and

• Aerated wastewater treatment systems (AWTS).

The Jindabyne Sewerage system contains approximately 50 km of rising and gravity sewer mains covering seven sub-catchments, covering an area of 780 hectares. There are fifteen pump stations (SPSs) conveying flows to the Jindabyne STP for treatment. These plants are operated under licences issued by the NSW Environmental Protection Authority (EPA).

The Jindabyne and East Jindabyne sewer catchment areas are split into the following catchment basins:

• COB – Cobbin Estate SPS;

• EJ1 – East Jindabyne SPS 1;



• EJ4 – Kunama Drive SPS 4;

• EJ6 – Alpine Sands SPS;

• JS1 – Barry Way SPS 1; (decommissioned)

• JS2 – Jinabyne Bowling CI;

• JS2A – Kalkite Street SPS 2A;

• JS3 – Cobbon Crescent SPS 3;

• JS4 – Kosciuszko Road SPS 4;

• JS5 – Station Resort SPS 5 ;

• JS6 – Leesville SPS 6;

• TY1 – Tulong Close TY1; and

• TY2 – Rainbow Beach TY2

These zones provide an overview of the wastewater network and are shown in Figure 9.

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Figure 9 - Existing Waste Water

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COB Cobbin Estate SPSEJ1 East Jindabyne SPS 1EJ2 East Jindabyne SPS 2EJ3 East Jindabyne SPS 3EJ4 East Jindabyne SPS 4EJ5 East Jindabyne SPS 5EJ6 East Jindabyne SPS 6Jindabyne STP Jindabyne Sewerage Treatment WorksJS1 Barry Way SPS 1JS2 Jindabyne Bowling CIJS2A Kalkite Street SPS2AJS3 Cobbon Crescent SPS3JS4 Kosciuszko Road SPS4JS5 Station Resort SPS5JS6 Leesville SPS6TY1 Tulong Close TY1TY2 Rainbow Beach TY2

Water Basin Zones

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The Jindabyne study area is currently serviced by one main Sewage Treatment Plans (STP) as well as privately owned sewage treatment plants and on-site systems. The capacity of the Jindabyne STP is as indicate (assuming hydraulic loading of 1 EP contributes to 240 L/d):

SMRC Study Area STP

Location Capacity (EP) Inflow ADWF Comments

Jindabyne Sewer Treatment Plant

8,000 or (1920 kL/day)

1,770 kL/d or (20.5L/s)

Council has implemented upgrades and does not

expect any capacity increases to be required within the next 10 years

Jindabyne STP (Stage 1 Augmentation in

2019)

10,000 or (2400 kL/day)

Drawing from SMRC’s 2011 draft Capital Works plan, council is expected to upgrade the Jindabyne STP to meet EPL requirements. This involves increasing the STP capacity from 8,000 EP to 10,000 EP.

Sewage flow is transferred to treatment plants via a series of Sewer Pumping Stations (SPS), the key supply areas can be split into the following sewer basins:

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SMRC Study Area SPS

Name Year Location Numebr of

Connections (2012)

Capacity (L/s) Current Demand (2012)

ADWF (L/s)

PDWF (L/s)

PWWF (L/s)

Jindabyne

JSPS1 1981 Barry Way SPS1 N/A Decommissioned

N/A N/A N/A

JSPS 2 2012 Jindabyne Bowling Club CI

185 18.9 L/s @ 60 m

3.4 14.1 17.4

JSPS 2A

1981 Kalkite Street SPS2A 444 48 L/s @ 82 m 7 15.4 38.3

JSPS 3 1981 Cobbon Crescent SPS3 167 22.5 L/s @ 30.8

1.5 3.2 10.7

JSPS 4 1989 Kosciuszko Road SPS4 149 80 L/s @ 59.2 m

13.6 38.2 87.1*

JSPS 5 1981 Station Resort SPS5 59 30 L/s @ 100m

4 11.1 16.9

JSPS 6 2003 Leesville SPS6 47 15.5 L/s @ 18.8 m

1.1 2.1 23.8*

JSPS 7 1981 Cobbon Estate SPS7 26 4.5 L/s @ 45.1 m

0.2 0.5 2.3

East Jindabyne

EJSPS1 1993 Rushes Bay Ave SPS1 N/A 16 L/s @ 28.7 m

N/A N/A N/A

EJSPS2 1993 Rushes Bay Ave SPS2 N/A 23 L/s @ 27 m N/A N/A N/A

EJSPS3 1993 Siesta Villa SPS3 N/A 28 L/s @ 44.6 m

N/A N/A N/A

EJSPS4 1993 Kunama Drive SPS4 15 29.8 L/s @ 42.3 m

1.9 4.1 37.7*

EJSPS5 1993 Kunama Reservoir SPS5 0 31 L/s @ 42.8 m

2 12.6 36.4*

EJSPS6 2007 Alpine Sands SPS6 30 78 L/s @ 42.8 m

0.2 0.4 7.9

TYSPS1 1993/2012

Tulong Close TY1 146 30 L/s @ 55 m 1 2.1 17.6

TYSPS2 1993 Rainbow Beach TY2 N/A 9 L/s @ 22 m N/A N/A N/A

Source: SRSC Integrated Water Cycle Management Plan, 2012

*Identified capacity issue

The extents of these zones and an overview of the waste water network are shown in Figure 9.

Similar to the potable water network, the sewage system is physically constrained by the steep and sloping topography, resulting in the need for a large number of pump stations and comparatively expensive pipework to protect the asset from landslides or other geotechnical conditions.

The existing wastewater infrastructure is outlined below in Figure 9. Onsite utility investigations and service searches are recommended as part of any future development application.

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An assessment of the estimated sewer loading resulting from the projected increase in population and dwelling number has been undertaken to assist in determining the required wastewater infrastructure upgrades necessary to accommodate future development within the Go Jindabyne study area.

Demand forecasting and profiles for wastewater have been calculated using the Sydney Water Area Planning Design Criteria Guide: WSA 02-2002-3.0 (Sewer Code of Australia) and is expressed as an Equivalent Population for a particular land use. The BASIX reduction has been taken from the Building Sustainability Index targets which have been summarised below in Table 21.

Table 21 Sewer Design Loading Criteria

Land Use Units EP per unit Sources

Single Occupancy Lots EP/dwelling 3.5

SWC Area Planning Design Criteria Guide: WSA 02-2002-3.0 (Sewer Code of Australia)

Local Commercial EP/ha 75

SWC Area Planning Design Criteria Guide: WSA 02-2002-3.0 (Sewer Code of Australia)

Future Industrial Areas EP/ha 150 SWC Area Planning Design

Criteria Guide: WSA 02-2002-3.0 (Sewer Code of Australia)

Educational institutions EP/Student 0.2 Water Supply Code of

Australia WSA 03-2011 - 3.1 (Sydney Water 2014 Edition)

Hospital and nursing homes

EP/Bed 3.4 Water Supply Code of

Australia WSA 03-2011 - 3.1 (Sydney Water 2014 Edition)

ADWF L/s 0.0017 SWC Area Planning Design

Criteria Guide: WSA 02-2002-3.0 (Sewer Code of Australia)

BASIX Reduction % 30 Building Sustainability Index

Targets

6.4 Forecast Demand

An estimate of forecasted wastewater loading has been calculated based on the projected population growth specified in the City Plan Jindabyne Housing and Demographic Study, 2019 as well as census data from the ABS. Current population and projected demographic changes for the study area have been used to formulate future dwelling numbers while commercial and social infrastructure plans have been extrapolated from the Jindabyne Growth Structure Plan 2007, Jindabyne Town Centre Masterplan 2013 and Jindabyne Central School Upgrade Masterplan 2018 . These figures inform the estimated number of dwellings for residential lots and GFA for non-residential developments.

In accordance with the Water Supply Code of Australia, the study area has been classified as comprising of ‘single occupancy lots’ with an Equivalent Population (EP) per dwellings of 3.5 and other non-residential developments. The Average Dry Weather Flow (ADWF) has been taken as 150 L/day or 0.0017 L/s as recommended in the updated 2016 Sydney Water sewage flow schedule. Non-residential development yields are outlined in Table 17.

Under BASIX requirement, new residential developments located within the SMRC LGA are required to reduce wastewater loading by 30% (since the BASIX amendment was introduced in 2006) when compared to the average NSW dwelling. Under this scenario, the ADWF allowing or BASIX for Jindabyne-Berridale SA2 including the Go Jindabyne study area has been calculated to range between 15-26 L/s during winter peak and summer trough seasons as shown in Table 21.

Wastewater service loads are shown in Figure 10 and Table 22 below, however it should be noted that these have been provided to inform lead-in infrastructure requirements only and are subject to

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changes as part of design development. These are indicative estimates and rely on population projections prepared by Alpha Demographics and Planning Information, and City Plan Strategy and Development. They have been derived based on current ratios, shares and relationships which may not hold true in the future.

Figure 10 Peak Wastewater Demand (Go Jindabyne Study Area)

-

5

10

15

20

25

30

2016 2021 2026 2031 2036

L/s

Year

Forecast Wastewater Demand - ADWF

Total Wastewater Demand HighestTotal Wastewater Demand LowestJindabyne STP Current CapacityJindabyne STP Capacity (Stage 1 Augmentation Completed 2019)

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Table 22 Estimated Average Dry Weather Flow (ADWF) including BASIX (L/s)

Wastewater Demand (incl. BASIX)- Cumulative Based on dwelling increase

Greater Jindabyne Urban Area

ADWF (L/s)

2016 2021 2026 2031 2036

Land Use Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter)

Residential

Usual 9 9 10 10 10 10 10 11 11 12

Visitor 1 6 1 7 2 9 2 11 2 12

Sub-Total 10 15 11 17 12 19 12 22 13 24

Non-residential

Commercial 0.36 0.36 0.37 0.37 0.39 0.39 0.41 0.41 0.43 0.43

Light Industrial 0.71 0.71 0.75 0.75 0.78 0.78 0.82 0.82 0.86 0.86

School1 (1000 students)

0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34

School2 (500 students)

0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

Aged Care 0.1 0.1 0.2 0.2 0.2 0.2 0.3 0.3 0.4 0.4

Sub-Total 1.7 1.7 1.8 1.8 1.9 1.9 2.1 2.1 2.2 2.2

Total Wastewater Demand (L/s)

12 17 13 19 14 21 14 24 15 26

1Jindabyne Central School (Assumed 1000 pupils) expected to be completed in 2020. SINSW, August 2018. 2Snowy Mountains Grammar School (Assumed 500 pupils)

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6.5.1 Existing Condition

Treated wastewater from the Jindabyne STP is discharged into a series of attenuation ponds before being discharged from an overflow structure from Pond 6 into Cobbon Creek. The allowable maximum volume and mass discharged by the Jindabyne STP is governed by EPA License No. 773 which indicates that discharge into Cobbon creek must not exceed 2000 kL/day or 23.15L/s. The current ADWF of the Jindabyne STP is approximately 20.5 L/s which is below the EPA license allowance. Overall the Jindabyne STP operates below its design capacity and within its EPA requirements.

The 2014 Integrated Water Cycle Management Detailed Strategy Study identified a number of issues with the current wastewater system:

• Higher residential sewerage bills compared to the NSW median;

• Higher operating and pumping costs compared to NSW local Water Utilities;

• Issues with demonstrating environmental and health protection at Sewer Treatment Plants due failure to comply with EP licensing requirements in the past;

• Capacity issues at several sewage pumping stations; and

• A number of sewerage services are in poor condition and require mainly electrical and mechanical rectification work. Detailed design stages will need to consider the relative benefit of ongoing operating and maintenance costs and reliability impacts for aged assets. The following assets have been identified:

Jindabyne

o Jindabyne SPS (JS2A and JS6) expected increase due to projected growth;

o Kosciuszko Road SPS (JS4) insufficient capacity;

o Leesville SPS (JS6) insufficient capacity;

o Jindabyne SPS (JS2A, JS3 and JS4) insufficient capacity and upgrade overdue;

o Jindabyne SPS (JS5) in poor condition (rating 1 out of 10); and

o Jindabyne SPS (JS6) in poor condition (rating 2 out of 10).

East Jindabyne

o Jerrara Drive/Kosciuszko Road SPS (EJ4 – 29.8L/s) likely to overflow and does not have overflow storage; and

o Kunama Drive SPS (EJ5 – 31L/s) likely to overflow due to lack of capacity and does not have overflow storage.

6.5.2 Future Condition

The proposed intensification and expansion of development as outlined in Section 4.3 and projected population growth will increase wastewater demand in certain localities. According to the wastewater ADWF forecast and upon completion of the Jindabyne STP Stage 1 augmentation works, the Go Jindabyne study area will have sufficient sewage capacity up to 2036. However, to maintain sewage treatment capacity and to meet EPA requirements, a number of rectification works are required.

The projected capacities have been included in Table 23.

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Name Capacity (L/s) Current Demand (2012)

Future demand (2036)

Demand Percentage

Change

ADWF (L/s)

PDWF (L/s)

PWWF (L/s)

ADWF (L/s) Upgrade required?

Sewage Treatment Plant

Jindabyne STP (Stage 1)

27.78 L/s 20.5 N/A N/A 26 No +27%

Sewage Pump Station - Jindabyne

JSPS1 Decommissioned N/A N/A N/A N/A N/A N/A

JSPS 2 18.9 L/s @ 60 m 3.4 14.1 17.4 N/A No N/A

JSPS 2A 48 L/s @ 82 m 7 15.4 38.3 N/A No N/A

JSPS 3 22.5 L/s @ 30.8 1.5 3.2 10.7 N/A No N/A

JSPS 4 80 L/s @ 59.2 m 13.6 38.2 87.1 N/A Yes N/A

JSPS 5 30 L/s @ 100m 4 11.1 16.9 N/A Yes* N/A

JSPS 6 15.5 L/s @ 18.8 m 1.1 2.1 23.8 N/A Yes N/A

JSPS 7 4.5 L/s @ 45.1 m 0.2 0.5 2.3 N/A No N/A

Sewage Pump Station – East Jindabyne

EJSPS1 16 L/s @ 28.7 m N/A N/A N/A N/A No N/A

EJSPS2 23 L/s @ 27 m N/A N/A N/A N/A No N/A

EJSPS3 28 L/s @ 44.6 m N/A N/A N/A N/A Yes* N/A

EJSPS4 29.8 L/s @ 42.3 m 1.9 4.1 37.7 N/A Yes N/A

EJSPS5 31 L/s @ 42.8 m 2 12.6 36.4 N/A Yes N/A

EJSPS6 78 L/s @ 42.8 m 0.2 0.4 7.9 N/A No N/A

TYSPS1 30 L/s @ 55 m 1 2.1 17.6 N/A No N/A

TYSPS2 9 L/s @ 22 m N/A N/A N/A N/A No N/A

Table 23 Projected Wastewater Capacity

*Assessment made in Integrated Water Cycle Management Detailed Strategy Study, 2014 by HydroScience

Based on the condition assessment in the Integrated Water Cycle Management Detailed StrategyStudy and future demand analysis for projected residential and non-residential development, thefollowing upgrade works will be needed:

Jindabyne

• Upgrade to Kalkite Street SPS2A (JSPS 2A);

• Upgrade to Kosciuszko Road SPS4 (JSPS4);

• Upgrade to Station Resort SPS5 (JSPS5); and

• Upgrade to Leesville SPS6 (JSPS6).

East Jindabyne

• Upgrade to Siesta Villa SPS3 (EJSPS3) – no information on capacity but minor augmentationmay be required to cope with proposed development;

• Upgrade to Jerrara Drive SPS4 (EJSPS4) – likely to overflow as no overflow storage; and

• Upgrade to Kunama Drive SPS5 (EJSPS5) – likely to overflow due to lack of capacity and nooverflow storage.

Sewer Mains

• New pipe work in growth areas to service new developments in Jindabyne, East Jindabyneand South of Jindabyne as shown in Figure 11.

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It should be noted that a large number of lots are treated by private and on-site sewage management systems throughout. SMRC has also prepared a Demand Management Plan (2012) which recommends demand management measures to be implemented in the study area. These factors may result in a reduction in the overall projected wastewater demand.

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Figure 11 - Potential Waste Water Upgrades

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Source:

COB Cobbin Estate SPSEJ1 East Jindabyne SPS 1EJ2 East Jindabyne SPS 2EJ3 East Jindabyne SPS 3EJ4 East Jindabyne SPS 4EJ5 East Jindabyne SPS 5EJ6 East Jindabyne SPS 6Jindabyne STP Jindabyne Sewerage Treatment WorksJS1 Barry Way SPS 1JS2 Jindabyne Bowling CIJS2A Kalkite Street SPS2AJS3 Cobbon Crescent SPS3JS4 Kosciuszko Road SPS4JS5 Station Resort SPS5JS6 Leesville SPS6TY1 Tulong Close TY1TY2 Rainbow Beach TY2

East Jindabyne

Jindabyne

South ofJindabyne

Potential connection toexisting Waste Water Pipe(EJSPS3 Sewer Basin)

Potential connection toexisting Waste Water Pipe(EJSPS5 Sewer Basin)

Potential new connectionto Pump Station JS5

Potential connection toexisting Waste WaterPipe (JSPS4 SewerBasin)

Potential connection toexisting Waste Water Pipe(JS2A Sewer Basin)

Water Basin Zones

Potential new waste water main



Legend:Poor Condition

Moderate Condition

Decommissioned

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7.0 Electrical

7.1 Background

Essential Energy is the supplier of electricity for the greater Jindabyne area as part of the Southernnetwork catchment as shown below in Figure 12. The overall Cooma sub-transmission system issupplied from TransGrid’s 132/66kV sub-transmission substation at Cooma.

Figure 12: Essential Energy Network Map

The Go Jindabyne study area is predominately serviced via three substations:

• Jindabyne 11kV Substation;

• Jindabyne 33kV Substation; and

• Jindabyne East 66kV Substation

Connecting these substations are sub-transmission feeders that service the study area:

• 82D 66kV - Transgrid Cooma 132/66kV STS to Jindabyne East ZS;

• 82J/2 66kV – Jindabyne ZS to Snowy Lookout Sw Stn; and

• 82R 66kV – Jindabyne East ZS to Jindabyne ZS.

A 1.1MW hydro generator is also located at Jindabyne Dam and is connected to the Jindabyne zonesubstation 11kV busbar via feeder JIN22.

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The existing Essential Energy infrastructure on the site has been identified based on DBYD recordsand the Essential Energy Asset Management Distribution Annual Planning Report (DAPR) 2018.These records indicate the presence of numerous electrical services within and adjacent to theJindabyne study area.

The current electrical network primarily consists of 11kV lines servicing the main town surroundingLake Jindabyne and along the main roads Barry Way and The Snowy River Way. 33kV lines are alsopresent servicing the outer perimeter of the Jindabyne study area.

The exact depths and positions of the existing electrical mains are unknown and further investigationwill be required to determine the precise layout.

Figure 13 below outlines the existing Essential Energy bulk transmission and sub-transmission lines:

Figure 13: Essential Energy Cooma Network (Distribution Annual Planning Report 2018)

The full reticulation network is shown in Figure 14 split into the following networks:

• 11kV reticulation lines;

• 33kV transmission lines; and

• 66kV transmission lines.

The forecast loads for the sub-transmission feeder and STS and ZS servicing the study area havebeen provided by Essential Energy and are shown in Figure 15 below. The report identifies no systemlimitations for the Cooma sub-transmission system up to 2024.

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Figure 14 - Existing Electrical Plan


Utilities11kV line33kV line66kV line

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Figure 15 Essential Energy Cooma Supply Area Forecast Loads (Essential Energy 2018 DAPR)

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An assessment of the estimated electrical demand for the study area has been undertaken to assist in determining the required electrical infrastructure upgrades necessary to service developments associated with the population increase up to 2036. Demand forecasting and profiles were developed for the study area based on a Maximum Demand rate specified by AS3000 Table C3 unless indicated otherwise. As Essential Energy dwelling demand unit rates have not been provided, the Endeavour Energy recommended After Diversity Maximum Demand (ADMD) was adopted. These are shown respectively below in Table 24 and Table 25.

Table 24 AS3000:2007 - Table C3 Maximum Demand (non-domestic installations)

Table 25 Endeavour Energy Growth Servicing Plan 2018 - Table 1 - ADMD by application

The electrical demand forecasting for the Jindabyne study area has been calculated using a combination of defined unit rates from standards and past AECOM experiences. An Energy Saver Aged-Care Toolkit report prepared by the NSW Office of Environment and Heritage in 2014 defined the peak electricity consumption for a typical aged care facility based on 15 energy audits in NSW. The BASIX energy reduction has been taken from the Building Sustainability Index targets and the load ranges have been summarised below in Table 26.

Table 26 Electrical Design Loading Criteria

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Land Use Units Electrical

Demand Sources

‘Detached’ Residential kVA/dwelling 4

Endeavour Energy Growth Servicing Plan 2018 – Table 1 ADMD

Commercial kVA/m2 0.1 AS3000-2007 – Table C3 Maximum Demand

Light Industrial kVA/m2 0.04 AS3000-2007 – Table C3 Maximum Demand

School kVA/m2 0.1 AS3000-2007 – Table C3 Maximum Demand

Aged Care Facility kVA/facility 100 Office of Environment and Heritage, Energy Saver Aged-Care toolkit

BASIX Reduction Factor % 30 BASIX Target Zones

7.4 Forecast Demand

An estimate of forecasted electrical loading has been calculated based on the projected population growth specified in the City Plan Jindabyne Housing and Demographic Study, 2019 as well as census data from the ABS. Current population and projected demographic changes for the study area have been used to formulate future dwelling numbers while commercial and social infrastructure plans have been extrapolated from the Jindabyne Growth Structure Plan 2007, Jindabyne Town Centre Masterplan 2013 and Jindabyne Central School Upgrade Masterplan 2018 . These figures inform the estimated number of dwellings for residential lots and GFA for non-residential developments.

In accordance with the Endeavour Energy criteria guide, the study area has been classified as comprising of ‘detached residential’ for the purpose of area studies while ‘commercial’ , ‘light industrial’ and ‘school’ developments have assumed an average energy demand rate .

Under BASIX requirement, new residential developments located within the SMRC LGA are required to reduce electrical demand by 30% (since the BASIX amendment was introduced in 2006) when compared to the average NSW dwelling. Under this scenario, the electrical demand allowing for BASIX for the Go Jindabyne study area has been calculated to range between 10 to 15 MVA by 2036 as shown in Table 21.

Indicative electrical loads forecasts are shown in Table 27, however it should be noted that these have been provided to inform lead-in infrastructure requirements only and are subject to changes as part of design development. These are indicative estimates only and rely on population projections prepared by Alpha Demographics and Planning Information, and City Plan Strategy and Development. They have been derived based on current ratios, shares and relationships which may not hold true in the future.

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Table 27 Total Maximum Electrical Demand

Electrical Demand Cumulative (inc BASIX + Diversification)

Greater Jindabyne Urban Area

Peak kVA

2016 2021 2026 2031 2036

Land Use Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter) Lower

(summer) Upper

(winter)

Residential

Usual 4,003 4,003 4,411 4,454 4,604 4,744 4,781 5,072 4,929 5,386

Visitor 519 2,856 626 3,445 757 4,164 891 4,898 1,023 5,625

Sub-Total 4,522 6,859 5,037 7,900 5,361 8,908 5,671 9,970 5,952 11,011

Non-residential

Commercial 2,237 2,237 2,349 2,349 2,466 2,466 2,589 2,589 2,719 2,719

Light Industrial 891 891 935 935 982 982 1,031 1,031 1,083 1,083


75 75 110 110 110 110 110 110 110 110


55 55 55 55 55 55 55 55 55 55

Aged Care 100 100 100 100 100 100 100 100 100 100

Sub-Total 3,358 3,358 3,549 3,549 3,713 3,713 3,886 3,886 4,067 4,067

Total Electrical Demand (kVA)

7,880 10,217 8,586 11,449 9,074 12,622 9,557 13,856 10,019 15,078

Total Electrical Demand (MVA)

7.88 10.22 8.59 11.45 9.07 12.62 9.56 13.86 10.02 15.08

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Figure 16 Forecast Electrical Demand

7.5 Potential ESD Initiatives

This report shows “baseline” utilities responses but key Ecologically Sustainable Development (ESD)initiatives recommended for further investigation as part of detailed design include;

• Solar PV;

• Building orientation;

• Electric car charging;

• Centralised heat extraction system;

• Geothermal heating;

• Smart metering; and

• Glazing options to improve thermal comfort and reduce heating and cooling loads.

Uptake of ESD initiatives may impact the final electrical peak demand and associated infrastructurerequirements.

-

10.00

20.00

30.00

40.00

50.00

2016 2021 2026 2031 2036

MV

A

Year

Forecast Peak Electrical Demand

Total Electrical Demand Highest

Total Electrical Demand Lowest

Jindabyne East ZS sub-transmission feeder

Jindabyne ZS sub-transmission feeder

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Based on the Essential Energy DAPR, 2018, there are no identified system limitations in the CoomaSupply Area up to 2024.

The report also indicated that the sub-transmission feeder load rating during winter for the JindabyneZS was 19 MVA while the Jindabyne East ZS was 39 MVA. The report shows that by 2023/24 theforecast load of the two sub-transmission feeders is only 15.9 MVA indicating that there may besufficient spare capacity in the existing sub-transmission feeders.

The proposed intensification and expansion of development as outlined in Section 4.3 will have thefollowing impacts on the electrical infrastructure in the Go Jindabyne study area:

• Additional electrical load on:

o Jindabyne 66/33/11kV substation;

o Jindabyne East 66/11kV substations;

o Jindabyne Dam Generator (currently 1.1MW);

o Jindabyne Pumping Station; and

o 82J/1, 82R and 82D sub-transmission feeder cables.

• From the Essential Energy DAPR, 2018, the Jindabyne ZS has a cyclic rating of 36 MVA whilethe Jindabyne East ZS has a rating of 12 MVA totalling 48 MVA for the study area. Theforecast electrical loading for the overall Go Jindabyne study area is expected to rangebetween 10 - 15 MVA by 2036 indicating that there is sufficient design capacity to meet futuregrowth demand. It should be noted that the forecast figures are estimates only and are basedon historical data and ratios which may not reflect actual future electrical demand.

Additionally, the following new electrical infrastructure will likely be required to support any newdevelopment:



These are identified overleaf in Figure 17

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Figure 17 - Potential Electrical Upgrades


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Jindabyne

South ofJindabyne



Potential new 11kv cables

Potential connectionto existing 11kV





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8.0 Gas

8.1 Background

Gas servicing to the Jindabyne Study Area is provided by Origin Energy, which has since beenacquired by APA Group in 2007. Figure 18 indicates the locations within New South Wales that areserviced by the Origin Energy LPG network which includes the Jindabyne study area.

Figure 18 Origin Energy (APA Group) service network

There is limited information available on the existing gas network and its capacity, further investigationis continuing to ascertain any supply limitations and potential upgrade requirements.

8.2 Existing On-Site Utility Infrastructure

There is limited gas reticulation located within the Jindabyne study area, those identified are:

• DN32 nylon LPG gas main underneath Adams Avenue;

• DN50 nylon LPG gas main underneath Rainbow Drive connecting to an LPG tank locatedSouth of McGregor Place; and

• Origin LPG tank located on Rainbow Drive shown in Figure 19.

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Figure 19 Origin LPG Tank connected to gas mains on Rainbow Road (Google, 2019)

The existing services are shown below in Figure 20. The exact depths and positions of the existingreticulation mains have not been confirmed and further investigations will likely be required todetermine the extent of diversions or amplifications required.


Limited information on the capacity of the gas network has been made available. Additionalinvestigation will be required to determine if gas mains have spare capacity and if reticulation linesrequire upgrades to service future developments.

Furthermore, it is expected that a centralised gas network is unfeasible for future developments withinthe Jindabyne study area. It is expected that on-site LPG gas will continue to be used for dwellingsparticularly in East Jindabyne. No projected gas demand analysis has been performed as it is typicallyapplied to a centralised network.

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Figure 20 - Existing Gas Plan


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9.0 Data and Communications

9.1 Background

Several communication providers have assets around the Jindabyne study area. Due to the scale ofdevelopment expected on the site, it is expected that the new telecommunications servicing will beprovided by the National Broadband Network (NBN).

9.2 Existing On-Site Utility Infrastructure

There are substantial data and communications infrastructure present throughout the study area. TheNational Broadband Network (NBN) is currently upgrading the existing fixed phone and internetnetwork infrastructure in several parts of the study area. A combination of fixed line and fixed wirelesscurrently services the study area as delineated by the NBN rollout map in Figure 21 and Figure 22.

Figure 21: NBN Rollout Map (NBN, 2019)

Underground Telstra services are located in the main town surrounding Lake Jindabyne andconnecting Barry Way road as illustrated in Figure 22. The town is generally well serviced by theTelstra 4G and 3G network and no plans for a wider Telstra 5G rollout within the study area have beenproposed as of 2019.

In areas with existing Telstra infrastructure, it will be necessary to confirm whether it is mostappropriate to continue using existing infrastructure or NBN infrastructure. Agreements are in place toenable NBN Co. to utilise existing Telstra infrastructure.


Initial feedback from the community indicated that the NBN network coverage was limited overallparticularly during peak periods. To improve data and communication connection coverage, there maybe opportunity to utilise new 5G technologies and roll out of a public WiFi network throughout theJindabyne study area. Public WiFi networks play an important role in the mix of communicationservices as it relieves congestion on the cellular network, provides for segments of the populationlacking in mobile connectivity such as tourists as well as being a crucial tool for gathering metadata toinform urban infrastructure and service planning (McShane & Wilson, 2017). There is significantpotential for SMRC to harness public WiFi for more effective urban governance which should beconsidered in future data and communications infrastructure planning.

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Figure 22 - Existing Telecommunications Plan


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Existing fixed wireless NBN

Existing fibre to the node NBN

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Figure 23 - Potential Telecommunications Upgrades


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Potential new telecommunications conduits

Potential connection toexisting telstra conduits






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10.0 Decentralised Systems

Due to servicing constraints resulting from the steep topography, geographical remoteness and inclement weather experienced within the study area, adoption of standard reticulation mains networks to service future infill urban developments may not be feasible. This situation presents opportunity for decentralised networks to reduce reliance on mains consumption and safeguard services supply. These can be achieved through potential alternatives including but not limited to:

• Recycled Water;

• Rainwater capture and greywater reuse;

• On-site sewerage treatment;

• Trigeneration; and

• Microgrids

Adoption of these alternatives may form part of a broader sustainability strategy.

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11.0 Conclusion and Recommendations

11.1 Conclusion

A number of utilities constraints affect the Jindabyne study area including:

• Lake Jindabyne is an unprotected water source and has potential high risk to drinking water quality;

• Drinking water quality issues across a number of Water Supply Systems;

• Uncertainty of population numbers and peak population impacting SRSC’s ability to determine appropriate estimates of future water supply and sewerage demand;

• Insufficient Water Extraction Licence water allocation to supply Jindabyne township annual demand by 2018 and previous exceedances of water extraction licences;

• Issues with demonstrating environmental and health protection at Sewer Treatment Plants;

• There are substantial supply constraints regarding the potable water network, particularly regarding the amount of water that can be taken from Lake Jindabyne;

• Most areas are serviced by existing pump stations and sewage treatment plants however a number of these plants require capital works to continue the current supply and upgrades are likely required to accommodate any large population increases;

• The area is well serviced by electrical assets however reliability may be an issue due to the topography and due to inclement weather;

• Gas appears to be available but information regarding supply is limited; and

• NBN is available and initial investigations appear to show that it could support future growth.

Opportunities and needs to support the precinct include:

• The urban localities within the study area are currently well serviced by utilities;

• Based on the Essential Energy Asset Management Distribution Annual Planning Report, 2018, there are no identified system limitations in the Cooma Supply Area up to 2023;

• Trunk services may have excess capacity to services the initial phases of the new development, however local amplifications are likely; and

• Adoption of decentralised systems to adapt to site constraints.

Future work that is required to enable detailed development applications includes:

• Further coordination with utility authorities to confirm lead-in infrastructure requirements and routes;

• Potential hydraulic modelling to confirm potable and wastewater lead-in infrastructure upgrades; and

• Further assessment of ESD options to take forward into detailed design to confirm the effects on utility supply and lead-in infrastructure requirements and routes.

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11.2 Recommendations

To ensure current capacity issues are addressed and to meet future growth demands in the study area, the following items have been identified as potential infrastructure upgrades:

Potable Water

• Upgrade works for Jindabyne Intake WPS (JIWPS);

• Upgrade East Jindabyne Kunama Reservoir (KR) and East Jindabyne Reservoir (EJBWPS);

• Upgrade Jindabyne High Zone (HZR), Low Zone (LZR) Barry Way (BWR) and High Country (HCR) reservoirs;

• Upgrade East Jindabyne Water Pumping Station (EJBWPS);

• Upgrade Jindabyne Low Zone (LZR), High Zone (HZR) and High Country (HCWPS) water pumping stations;

• Construction of new potable water mains in growth areas to service new developments in Jindabyne, East Jindabyne and South of Jindabyne; and

• Renewal of the water extraction license as required to meet growth in development.

Key water ESD initiatives recommended for further investigation as part of detailed design include:

o Rainwater harvesting; and

o Recycled water.

Wastewater

• Upgrade of SPS’s that are expected to be capacity constrained including:

o Kalkite Street SPS2A (JSPS 2A);

o Kosciuszko Road SPS4 (JSPS4);

o Station Resort SPS5 (JSPS5);

o Leesville SPS6 (JSPS6);

o Siesta Villa SPS3 (EJSPS3);

o Jerrara Drive SPS4 (EJSPS4); and

o Kunama Drive SPS5 (EJSPS5).

• Construction of new sewer mains in Jindabyne, East Jindabyne and South of Jindabyne growth areas;

Key wastewater ESD initiatives recommended for further investigation as part of detailed design include:

o Expansion of existing recycled water network for irrigation of sports fields, golf courses and park land; and

o Grey water re-use strategies.

Electrical



Key electrical ESD initiatives recommended for further investigation as part of detailed design include;

o Community solar schemes combined with battery storage;

o Localised microgrids;

o Building orientation;

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o Electric car charging;

o Centralised heat extraction system;

o Geothermal heating;

o Smart metering; or

o Glazing options to improve thermal comfort and reduce heating and cooling loads.

Data and Communications

• Improvements to data and communication connection coverage through 5G technologies and roll out of a public WiFi network.

It is noted that this report is a high-level utility servicing strategy and further investigation work is recommended to adequately define the exact scope and design of utility upgrades. In particular an update of the Integrated Water Cycle Management Plan based on the final master plan yields and proposed visitor numbers to ensure there is adequate infrastructure to support the outcomes of the master plan.

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