Melbourne Water Corporate Plan - 2017/18 to 2021/2022

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Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Melbourne Water Corporate Plan
2017/18 to 2021/2022
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Melbourne Water
990 La Trobe Street, Docklands, Vic 3008
PO Box 4342 Melbourne Victoria 3001
Telephone 131 722 Facsimile 03 9679 7099
melbournewater.com.au

ISBN 978-1-925541-06-9

© Copyright May 2017 Melbourne Water Corporation. All rights reserved.
No part of the document may be reproduced, stored in a retrieval system,
photocopied or otherwise dealt with without prior written permission of Melbourne
Water Corporation.

Disclaimer: This publication may be of assistance to you but Melbourne Water and
its employees do not guarantee that the publication is without flaw of any kind or is
wholly appropriate for your particular purposes and therefore disclaims all liability
for any error, loss or other consequence which may arise from you relying on any
information in this publication.
All actions in this strategy will be delivered subject to funding.
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Corporate Plan 2017 to 2022 Melbourne Water   1
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Aboriginal Acknowledgement
Melbourne Water respectfully
acknowledges the Traditional Owners
of the land on which we operate and
pays our respect to their Elders past and
present.

We acknowledge Aboriginal and Torres Strait Islander peoples
as Australia’s first peoples and as the Traditional Owners and
custodians of the land and water on which we rely. We recognise
and value the ongoing contribution Melbourne’s Aboriginal and
Torres Strait Islander communities and their rich cultures have
to the services Melbourne Water provides. We embrace the spirit
of reconciliation, working towards the equality of outcomes and
ensuring an equal voice.

2   Melbourne Water Corporate Plan 2017 to 2022
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Contents
Executive Summary                      4
Healthy People                          8
Water Supply                            9
Sewerage Services                      15
Healthy Places                         21
Flood Management & Drainage Services   22

Liveability                            26
A Water Sensitive City                 30
Healthy Environment                    34
Healthy Waterways                      35
Creating a Sustainable Region          39
Community Engagement                   42
Strengthening our business             44
Customer Focus                         46
Inspired People                        50
Continuous Improvement                 56
Financial Sustainability               66

                                            Corporate Plan 2017 to 2022 Melbourne Water   3
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Executive summary
Melbourne Water’s vision is to Enhance Life and Liveability for the community of
Melbourne. Over the next five years we will continue to invest in strengthening our
business and deliver on our vision through our three core pillars of Healthy People,
Healthy Places and Healthy Environment.

                                                                           Key objectives include:

                                                                           •    planning for the future security of water supply and

                                                                                resource management alongside developing integrated
                                                                                water management plans to sustainably support
       Healthy People         Healthy Places         Healthy Environment
                                                                                Melbourne’s population growth
    Strengthening the       Co-creating the        Enhancing the natural
     wellbeing of the    world’s most desirable        environment         •    making our community more resilient to floods and
       community             places to live.
                                                                                managing the impacts of climate change and urban

Figure 1 – Melbourne Water’s Strategic Direction.                               development through collaborative partnerships and
                                                                                education
Melbourne Water is owned by the Victorian Government and has               •    implementing the Healthy Waterways Strategy to protect
provided safe, secure and affordable water services to Melbourne                and improve the quality of our waterways and catchments
for over 125 years. As part of our core services, we treat and                  and enhance biodiversity in an increasingly urbanised region
supply drinking and recycled water, remove and treat most of
                                                                           •    engaging and supporting Aboriginal communities in water
Melbourne’s sewage, manage waterways and oversee major
                                                                                management and economic inclusion
drainage systems in the Port Phillip and Westernport region.
                                                                           •    continuing to build stronger relationships with our
We are dedicated to delivering high quality services and                        customers by establishing a more robust approach to
solutions that are financially and environmentally sustainable,                 relationship management and servicing their needs through
while contributing to Melbourne’s liveability. We build strong                  the transformation of our digital platforms
relationships with our customers, stakeholders and suppliers in            •    maintaining the organisation’s financial sustainability and
the community, government and industry. We also care for the                    providing a cost effective services to customers.
health and wellbeing of our people.

Managing future challenges

Melbourne Water faces a number of challenges in the continued
delivery of our highly valued services. To remain one of the
world’s most liveable cities we need to embrace the challenges of
a growing city, increasing urbanisation, climate change, evolving
customer expectations, and a changing economy.

Melbourne Water’s Corporate Plan 2017-2022 is a five-year plan
that addresses these key challenges and ensures we continue
to be future focused by driving operational innovation and
efficiencies. Our activities over the 2017-18 to 2021-22 planning
period detail the organisation’s long and short term business
objectives.

4    Melbourne Water Corporate Plan 2017 to 2022
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Sustainable Development
Goals
Melbourne Water is a signatory to the United Nations
Global Compact, the world’s largest corporate sustainability
initiative, including supporting the United Nations’ Sustainable
Development Goals. These initiatives aim to mobilise efforts
                                                                            Healthy People             Healthy Places        Healthy Environment
worldwide to end all forms of poverty, right inequalities and
tackle climate change.                                                   Strengthening the           Co-creating the       Enhancing the natural
                                                                          wellbeing of the        world’s most desirable       environment
                                                                            community                 places to live.

The Sustainable Development Goals aim to put the world on a
sustainable path by 2030 and have been adopted globally by
193 countries. The vital role of water in creating and delivering
sustainable communities puts Melbourne Water in a key position
to contribute to this global effort.

These goals align closely with Melbourne Water’s Strategic
Direction, particularly Goal 6-Clean Water and Sanitation,
                                                                       Figure 2 – Alignment of Sustainable Development Goals to
Goal 11-Sustainable Cities and Communities, and Goal 15-
                                                                       Melbourne Water’s Strategic Direction.
Life on Land.

The interdependent nature of the goals means that by delivering our Strategic Direction, Melbourne Water will also contribute across
all 17 goals.

Creating the world’s most liveable city is a collaborative effort. As such the Sustainable Development Goals will provide us, as well as
our stakeholders and customers, with a common framework to deliver ongoing community wellbeing and a sustainable, well managed
environment for future generations.

Figure 3 – United Nations’ Sustainable Development Goals

                                                                                             Corporate Plan 2017 to 2022 Melbourne Water           5
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Healthy people, Healthy places, Healthy
environment

6   Melbourne Water Corporate Plan 2017 to 2022
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Corporate Plan 2017 to 2022 Melbourne Water   7
Melbourne Water Corporate Plan - 2017/18 to 2021/2022
Healthy people
Strengthening the wellbeing of the community

Melbourne is a vibrant city of more than four million people. By      operational advice on the status of our water supply system. In
2065 the population of Melbourne and the surrounding region           the last 12 months we also completed the first of three stages of
is expected to almost double in size, increasing the demand for       the $350 million Western Treatment Plant upgrade, which will
water and sewerage treatment.                                         enable it to continue to treat Melbourne’s sewage to the highest
                                                                      standards expected by the community.
Melbourne Water delivers on its Healthy People pillar by
providing safe, affordable, world-class drinking water and sewage     The pressures of population growth and climate change will
treatment. We also protect public health and strengthen the           remain a challenge to our organisation. We will continue to
wellbeing of our community.                                           address and manage these challenges by understanding how our
                                                                      city is changing physically so we can deliver appropriate water
A significant step forward for Victoria’s grid was made when the      infrastructure. We are developing a broad range of strategic
59km Melbourne to Geelong pipeline was switched for the first         priorities to maximise the water available to the community.
time in April 2016, allowing for the transfer of 6 gigalitres water   These include stormwater harvesting, reusing effluent from our
to relive pressure on the region’s water supply.                      treatment plants for renewable energy, using water from the
                                                                      Victorian Desalination Plant, increasing connectivity across the
Melbourne Water helped inform the Victorian Government’s              water supply system, and improving access to natural spaces and
recent desalinated water order by providing technical and             recreational facilities.

8   Melbourne Water Corporate Plan 2017 to 2022
Water Supply
As Melbourne grows, the community will continue to receive safe, secure, affordable,
world-class drinking water.

 157,000 ha 10 STORAGE
               RESERVOIRS                                                                      432 GL
 PROTECTED                                               TOTAL CAPACITY                         HIGH QUALIT Y
 CATCHMENTS
                                                1812                    BILLION                 D R I N K I N G W AT E R
                                                                        LITRES
                                                                                                DELIVERED TO CUSTOMERS
 IN THE YARRA RANGES                                                                           AND THE COMMUNITY

14                WAT E R
                  TREATMENT
                  PLANTS
                                                 38                  SERVICE
                                                                     RESERVOIRS                 221 KM    AQUEDUCTS

                      1051 KM WATER MAINS
Safe and secure water supply services are fundamental to life and       activities. Water from open catchments is treated through a
liveabilty in Melbourne and the surrounding region. Melbourne           sophisticated filtration process. We operate two large filtration
Water manages the sources and wholesale supply of high-quality          plants that treat water from open catchments - Winneke Water
drinking water for metropolitan Melbourne. Most of the city’s           Treatment Plant and Tarago Water Treatment Plant.
drinking water comes from protected water catchments in the
Yarra Ranges, forested areas located in national parks, and state       We use advanced monitoring, filtering and treatment processes
forests.                                                                to ensure Melbourne’s drinking water consistently meets the
                                                                        Australian Drinking Water Guidelines. Over the 2017-18 to 2021-
Water quality                                                           22 planning period, Melbourne Water will continue to monitor,
                                                                        assess and manage drinking water quality. Key projects include
Melbourne is known to have some of the highest quality drinking         $20 million of water quality mechanical and electrical assets
water in the world. Managing water quality to protect public            upgrades and a new $40 million ultraviolet disinfection system
health remains a high priority for Melbourne Water.                     at the Winneke Treatment Plant.

Melbourne is one of the few cities in the world with protected          Supply Network
water catchments located in forested areas in the Yarra Ranges.
These native forests filter rainwater as it flows across land into      Melbourne has 10 major storage reservoirs. Water from these
creeks, rivers and reservoirs, requiring very little treatment. About   reservoirs is distributed across the Melbourne region via large
20 per cent of Melbourne’s water comes from open catchments             pipes called distribution mains to smaller service reservoirs.
that contain mixed land uses such as farming and recreational           These 38 service reservoirs, situated throughout metropolitan

                                                                                           Corporate Plan 2017 to 2022 Melbourne Water      9
Melbourne, provide short-term storage of one to two days to ensure a constant water supply during peak demand periods. Thousands
of mostly underground pipes then carry this water in a web-like network to metropolitan retail water businesses, which supply water to
homes, school and businesses.

      Supplying our customers

      Melbourne Water supplied 432 gigalitres¹       Water supply forecast over the 2017-18 to 2021-22 planning period²
      of high quality drinking water to our retail
      customers.
                                                                                       Forecast Water Demand 2017/18 - 2021/22

                                                           Western
                                                            Water

                                                         Yarra Valley
                                                            Water

                                                          South East
                                                            Water

                                                          City West
                                                            Water

                                                                        -     100.00     200.00     300.00    400.00    500.00   600.00   700.00   800.00

                                                                                                         Volume (GL)

                                                     1. Based on 2015-16 retail water consumption

           36.9% Yarra Valley Water 160 GL           2. Based on ESC final decision on Melbourne Water’s 2016 Price Submission

           35.7% South East Water 154 GL

           25.8% City West Water 112 GL

           1.3% Western Water 5.6 GL
           0.2% Gippsland Water 0.9 GL
           0.1% Barwon Water 0.3 GL

Over the 2017-18 to 2021-22 planning period we will continue                       As part of our commitment to renewable energy initiatives, a
to focus on upgrading and maintaining our supply network to                        further five new plants were commissioned and added in 2016-17
meet the expectations of Melbourne’s growing population. Key                       to the existing nine mini hydro-electricity plants for reservoirs
projects include:                                                                  in Wantirna, Boronia, Dandenong, Mount Waverley and Cardinia

•    $47 million to renew water supply aqueducts, improve                          Creek.

     water quality and increase their service life to 150 years
                                                                                   All 14 mini hydro-electricity plants will generate up to 69,600
•    $39 million to increase capacity at Winneke Treatment
                                                                                   megawatt hours of electricity per year and offset over 75,800
     Plant
                                                                                   tonnes of carbon dioxide emissions annually, which is equivalent
•    and $33 million to upgrade the M41 Water Main Alignment                       to taking more than 29,200 cars off the road.
     from Merri Creek in Northcote to Wellington Parade in East
     Melbourne.                                                                    We will continue to explore opportunities to add more hydro-
                                                                                   electric power stations to our operation. For more detail please
Mini hydro-electricity plants                                                      refer to Strategic Priority: Carbon Emission Pledge in the Healthy
                                                                                   Environment chapter.
Mini hydro-electricity plants operate throughout Melbourne’s
water supply network. These plants generate renewable energy                       Victorian Desalination Plant
from the flow and pressure of moving water and feed it back into
the electricity grid.                                                              Desalination complements Melbourne’s catchments and
                                                                                   reservoirs by providing a secure, rainfall-independent source of

10   Melbourne Water Corporate Plan 2017 to 2022
water for Melbourne. The Victorian Desalination Plant (VDP)                            The Minister for Water has announced a minimum order of
is capable of supplying up to 150 gigalitres of high quality                           15 gigalitres per year from the VDP for the next three years.
drinking water each year, significantly increasing the security                        Additional water orders will be determined annually over the
of Melbourne’s water supply during periods of low rainfall and                         2017-18 to 2021-22 planning period.
mitigating the long-term impacts of climate change.

               Water supply pipelines and aqueducts

               Retail water area boundary

               Water supply catchment area

               Water supply storage reservoir
                                                                                          2

                                                                             1
         Water supply                                                                          3                                   5
                                              Western Water                                                        4
                                                                                                                                              6
         storage reservoirs:                   (Sunbury)

          1    Greenvale                                         City West               Yarra Valley Water
                                                                  Water                                                                                                  7
          2    Yan Yean                     Western Water
                                              (Melton)
          3    Sugarloaf                                                                                 9

                                  Barwon Water                                                                                                        Southern Rural Water
          4    Maroondah
                                                                                                                                        8          (Macalister Irrigation District)
          5    O’Shannassy                                                                                                                                 Gippsland Water
                                                                                                         10
                                                                                                                                                           (Neerim South)
          6    Upper Yarra
                                                                                                                                                           Gippsland Water
          7    Thomson                                                                                                                                       (Warragul)
                                                                    Port Phillip Bay
          8    Tarago
                                                                                                                South East Water
          9    Silvan
                                                                                                Western Port
          10   Cardinia

                                                   Bass Strait
                                                                                                                       from Victorian Desalination Plant

Figure 4 – Melbourne’s water supply map.

      2017-18 to 2021-22

      $4,705M
      FORECAST REVENUE FOR WATER SUPPLY SERVICE

      $448M
      PLANNED CAPITAL EXPENDITURE FOR WATER SUPPLY PROJECTS
      17.8% OF MELBOURNE WATER CAPITAL EXPENDITURE

      $1,055M
      DIRECT OPERATING EXPENDITURE
      21.34% OF MELBOURNE WATER’S TOTAL EXPENDITURE

                                                                                                               Corporate Plan 2017 to 2022 Melbourne Water                            11
Capital program

Total planned capital expenditure on water supply projects over the 2017-18 to 2021-22 planning period is $448 million, which
accounts for 17.8 per cent of Melbourne Water’s total capital expenditure.

The water supply capital program is mostly driven by renewals of water transfer pipelines, mechanical and electrical assets as well as
some growth and compliance projects. From 2016-17 to 2018-19 the capital delivery program will focus on maintaining and renewing
pipelines such as the M40 and M41 mains to ensure safe and secure water supply to Melbourne’s inner north and eastern suburbs,
followed by an increase in capital expenditure in 2019-20 for major aqueduct renewals, and capacity upgrades at Winneke Treatment
Plant. This capital expenditure is shown in Figure 5 and key significant projects are detailed in Appendix C.

                                                        5 Year Corporate Plan by Product

                    160.0
                                                                                Corporate Plan $448M
                    140.0

                    120.0

                    100.0
      Nominal $'M

                    80.0

                    60.0

                    40.0

                     20.0

                      0.0
                            2016/17          2017/18                  2018/19         2019/20          2020/21            2021/22

Figure 5 - Water capital projects for the 2017-18 to 2021-22 planning period.

Revenue and expenditure

Forecast water supply services revenue for the 2017-18 to 2021-22 planning period is $4,705 million while total direct operational
expenditure is forecast at $1,055 million, which accounts for 21.34 per cent of Melbourne Water’s total operating expenditure. Figure
6A and 6B show the breakdown of capital and operational expenditure for water supply.

                                                                                                                 Labour $115.5M
                                                                                                                 External Services $138.7M

                                                                                                                 Materials $32.6M
                                          Compliance $ 71.4M
                                                                                                                 Information Technology $0.9M
                                          Growth $41.9M
                                                                                                                 Energy $41.5M
                                          Renewals $273M
                                                                                                                 Fees and Charges $9.4M
                                          Strategic/Risk Mgt $61.9M
                                                                                                                 Transport $1.5M

                                                                                                                 Other $4.9M

                                                                                                                 Land Tax $49.6M
                                                                                                                 Victorian Desalination
                                                                                                                 Plant $660.1M

Figure 6A and 6B - Breakdown of capital and direct operational expenditure for water supply.

12   Melbourne Water Corporate Plan 2017 to 2022
Strategic Priority: Melbourne Water’s Drinking Water Quality Strategy

Melbourne Water’s Drinking Water Quality Strategy (DWQS) is a 20 year strategy that outlines how we will continuously
deliver safe drinking water. The strategy is currently being finalised and an implementation plan will be introduced from
mid-2017.

Key focus areas include:

•    establishing strategic objectives, levels of service and guiding outcomes

•    guiding policy, planning, capital investment, operational improvements and research

•    aligning business activities for improved drinking water quality outcomes.

The DWQS implementation plan will ensure Melbourne Water delivers on its commitments under the Healthy People
pillar in the Strategic Direction and the Public Health Policy by ensuring we have continuity of supply and effective source
management. We will also leverage our approach to innovation and our leadership position in the community and industry.

Strategic Priority: Melbourne Water System Strategy

As a growing city with a changing climate, Melbourne faces a number of key challenges to secure water resources for
the city and surrounds. The Melbourne Water System Strategy outlines a portfolio approach to meeting these challenges,
including making the most of the water supply system, using water efficiently, and harvesting diverse sources of water such
as rainwater, stormwater and recycled water – supported by the water grid and the water market.

The strategy identifies a series of key directions and opportunities for Melbourne Water over the next 50 years and is
structured around two key groups of challenges, followed by four portfolio elements to address these challenges as shown
in Figure 7.

     Our growing             Making the                                                                      Our changing
                                                         Using water                Using diverse
     and changing          most of the water                                                                 and variable
                                                          efficiently              sources of water
        region              supply system                                                                      climate

                                            Optimising the water grid and market

Figure 7 – How the Melbourne Water System Strategy will address Melbourne’s future water resource management needs.

The Melbourne Water System Strategy also outlines Melbourne Water’s contribution to relevant policy directions set by
Water for Victoria, the Victorian Government’s water plan.

It includes more than 35 actions to help manage the water resource challenges Melbourne faces over the next 50 years.
Although some of these actions will be delivered solely by Melbourne Water, the majority will be delivered in partnership
with our customers and stakeholders.

                                                                                     Corporate Plan 2017 to 2022 Melbourne Water   13
Strategic Priority: Melbourne Water System Strategy (cont)

     The strategy’s key focus areas and actions for managing Melbourne’s water resources efficiently, securely and affordably are
     listed below.

                            Key Focus Area                                                  Key Action Items

         Growing and changing region                                    Explore opportunities to use our land to reduce the urban
                                                                        heat island effect, improve demand forecasts and link core
                                                                        services across the water cycle.

         Changing and variable climate                                  Invest in climate research and operationalise outcomes,
                                                                        become a net-zero greenhouse gas business and define
                                                                        climate risks on the environmental values of waterways and
                                                                        wetlands.

         Making the most of the water supply system                     Update annual operational planning to meet customer
                                                                        needs, improve transparency and address climate change.

                                                                        Review the desalinated water order advice development
                                                                        process, identify potential improvements to the way we
                                                                        deliver environmental water and drive integration between
                                                                        water supply system models used by Melbourne Water and
                                                                        our retail water corporation customers.

         Using water efficiently                                        Support the retail water corporations to deliver the Target
                                                                        155 program, collaborate to deliver research on water
                                                                        efficiency into the future and periodically review storage
                                                                        levels and outlook zones. When necessary, implement the
                                                                        Drought Preparedness Plans for Melbourne.

         Using diverse sources of water                                 Collaborate through integrated water management forums
                                                                        and plans to deliver up to 80 gigalitres/year from diverse
                                                                        sources by 2065.

                                                                        Investigate use of diverse water sources to deliver
                                                                        environmental water and enhance capabilities to model
                                                                        diverse sources of water.

         Optimising the water grid market                               Support the development of a water grid oversight function.

                                                                        Identify and evaluate potential long-term options that could
                                                                        add capacity to the water grid and develop a water resources
                                                                        information management plan.

14   Melbourne Water Corporate Plan 2017 to 2022
Sewerage Services
We will continue to safely treat our sewage to protect public health and enhance
environmental outcomes.

                             400                      KM OF SEWERS

 9            SEWAGE
              PUMPING
               STATIONS
                                                60%                             SEWAGE
                                                                                TREATMENT                        40%
 12
                                                WESTERN                                                            EASTERN
                           AI R                  T R E AT M E N T
                                                     PL ANT
                                                                                                                   T R E AT M E N T
                                                                                                                       PL ANT
                      TREATMENT
                        FACILITIES              WERRIBEE                                                         BANGHOLME

Fast, efficient and safe removal of sewage from our houses and businesses is fundamental to a modern city. Sewage is no longer
simply a waste product. In the face of climate change and thanks to new technology, Melbourne Water is turning sewage into valuable
resources such as recycled water and biogas (renewable energy).

Sewage treatment
Melbourne Water’s sewage treatment system consists of two main treatment plants – the Western Treatment Plant in Werribee and
the Eastern Treatment Plant in Bangholme.

      Western Treatment Plant

     Located in Werribee, the 10,500 hectare Western                 megawatt hours of renewable electricity every year, which

     Treatment Plant (WTP) is the world leader in technical          prevents the emissions of 52,800 tonnes of carbon dioxide.

     and environmental innovation. It treats approximately 60
     per cent of Melbourne’s sewage and produces almost 40           Over the 2017-18 to 2021-22 planning period, a three

     gigalitres of recycle water a year.                             stage investment program will continue at WTP. The $107
                                                                     million Stage 2 capacity upgrade commenced in 2017 and

     It features a system of lagoons that gradually break down       includes the installation of a nitrogen removal plant. This

     organic matter in water using bacteria. It’s an approach        new plant is a technical and environmental innovation

     to treatment that is very low in energy consumption and,        for WTP as it is designed to be more energy efficient and

     when combined with onsite methane power generation and          incorporates advanced monitoring and control treatment

     the use of recycled water for irrigation, makes WTP one of      process.

     the lowest cost treatment plants in the world.
                                                                     Other major WTP investment programs include renewal of

     WTP is nearly energy self-sufficient, producing about 70        the activated sludge plant and drying pans.

     per cent of its own electricity needs. It generates 48,500

                                                                                       Corporate Plan 2017 to 2022 Melbourne Water    15
Eastern Treatment Plant

     The Eastern Treatment Plant (ETP) is situated on a 1,100                                        water produced at ETP and reduced the impact on the
     hectare site and treats approximately 40 per cent of                                            local marine environment at Boags Rocks, where treated
     Melbourne’s sewage from the south-eastern and eastern                                           water is discharged to the ocean. ETP also uses biogas to
     suburbs.                                                                                        power 26 per cent of its electricity needs. The plant’s seven
                                                                                                     generators can run solely on biogas or can be supplemented
     ETP is known for adopting leading technology which                                              by natural gas as needed. ETP generates 35,600 megawatt
     includes an active mechanical and chemical approach to                                          hours of renewable electricity, which prevents the emissions
     treat sewage.                                                                                   of 38,800 tonnes of carbon dioxide.

     After completing its major upgrade in 2012, ETP is now                                          Over the 2017-18 to 2021-22 planning period, the
     Melbourne Water’s most complex and diverse treatment                                            investment program will focus on the renewal of
     plants. These works have improved the quality of recycled                                       mechanical and electrical components.

Sewage transfer

In addition to our two treatment plants, Melbourne Water also manages and operates 400 kilometres of large diameter pipes that
convey sewage from our retail water corporation customers to these treatment plants.

Over the 2017-18 to 2021-22 planning period we will continue to make significant investments to reduce sewerage system overflows
and leakage from treatment processes. Key project include $35 million in rehabilitation works for the Hobson Bay and Yarra Crossing
sewerage main pipeline.

Melbourne Water’s sewerage network and treatment plants are shown in Figure 8.

            Sewerage transfer pipeline

            Sewerage system outlet

            Retail Water area boundary

            Sewerage treatment plant
                                                                 Northern                Yarra Valley Water
                                                                 Diversion
                                                      Melbourne Sewer
                                                      Main Sewer         North Yarra East Main
       Sewerage pump station:            City West North               Yarra Main
                                          Water       West                  3 South
        1   Hoppers Crossing                          Sewer                    Eastern
                                              Western        2
                                                                                 Trunk
        2   Brooklyn                           Trunk
                                                         1                         4
        3   Kew                                                     Hobson
                                                                    Bay Main                                  Dandenong
        4   North Road                                                                                        Valley Trunk
                                                          Western                       5        7
                                                       Treatment Plant                   6
        5   Mordialloc No. 2                                                                              9                  South East Water
                                                                                             8
                                                                                                              Eastern
        6   Mordialloc No. 1                                    Port Phillip Bay                          Treatment Plant
        7   Mordialloc Wet Weather
        8   Bondi Road
                                                                                                     ll
                                                                                                 tfa

                                                                                                                 Western Port
                                                                                             Ou

        9   Eastern Treatment Plant
                                                                                        rn
                                                                                      s te
                                                                                   Ea
                                                                                  uth
                                                                               So

                                         Bass Strait

Figure 8 – Melbourne Water’s sewerage network.

16   Melbourne Water Corporate Plan 2017 to 2022
2017-18 to 2021-22

      $2,316M
      FORECAST REVENUE FOR SEWERAGE SERVICE

      $927M
      CAPITAL FOR SEWERAGE PROJECTS
      37% OF MELBOURNE WATER’S TOTAL CAPITAL EXPENDITURE

      $570M
      DIRECT OPERATING EXPENDITURE
      11.5% OF MELBOURNE WATER’S TOTAL EXPENDITURE

Capital program

Total planned capital expenditure on sewerage projects over the 2017-18 to 2021-22 planning period is $927 million, which accounts
for 37 per cent of Melbourne Water’s total capital expenditure. The sewerage capital program is mostly driven by renewals and growth
projects. Over 2017-18 to 2018-19 the capital program will focus on WTP capacity upgrades while in 2021-22 the focus will be on
the WTP activated sludge plant upgrade. Capital projects for the 2017-18 to 2021-22 planning period are shown in Figure 9 and key
significant projects are detailed in Appendix C.

                                                       5 Year Corporate Plan by Product

                    300.0
                                                                             Corporate Plan $927M

                    250.0

                    200.0
      Nominal $'M

                    150.0

                    100.0

                     50.0

                      0.0
                            2016/17          2017/18             2018/19           2019/20              2020/21           2021/22

Figure 9 - Key sewerage capital projects for the 2017-18 to 2021-2022 planning period.

                                                                                             Corporate Plan 2017 to 2022 Melbourne Water   17
Revenue and expenditure

Forecast sewerage revenue for 2017-18 to 2021-22 planning period is $2,316 million while operational expenditure is $570 million. This
accounts for 11.5 per cent of Melbourne Water’s total operating expenditure. Figures 10A and 10B show the breakdown of capital and
direct operational expenditure for sewerage.

                                                                                                                Labour $104.1M
                                                                                                                External Services $228.4M

                                          Compliance $157.7M                                                    Materials $12M

                                          Growth $229.2M                                                        Information Technology $0.8M

                                                                                                                Energy $167M
                                          Renewals $435.9M

                                          Strategic/Risk Mgt $104.3M                                            Fees and Charges $17.5M
                                                                                                                Transport $2.2M

                                                                                                                Other $1.7M

                                                                                                                Land Tax $35.8M

Figures 10A and 10B - Breakdown of capital and direct operational expenditure for sewerage.

      Strategic Priority: Melbourne Sewerage Strategy

      As well as focusing on long-term water resource                  Environment, Land, Water and Planning (DELWP). The
      management, Melbourne Water will continue to protect             adaptive planning approach will be used to help develop a
      public health and enhance environmental outcomes by              robust strategy that addresses a range of strategic issues
      treating sewage safely.                                          including waste management, fit-for-purpose water and a
                                                                       healthy environment.
      Stemming from the release of the Victorian Government’s
      water plan, Water for Victoria, Melbourne Water will             The Melbourne Sewerage Strategy is due to be completed
      develop a long-term sewerage strategy by September 2018          by September 2018.
      to address climate change and population growth and
      reflect the Statement of Obligations.

      The main focus of the strategy will be to review
      Melbourne’s overall sewerage system including transfer
      and treatment as well as its adaptability to the sewage
      requirements of a rapidly growing city. The strategy will
      also look at how to support the broader community in a
      sustainable, fair and cost effective way.

      Work on the Melbourne Sewerage Strategy commenced
      in January 2017 with a series of workshops with key
      stakeholders including metropolitan retail water
      corporations, Western Water, Environment Protection
      Authority Victoria (EPAV) and the Department of

18   Melbourne Water Corporate Plan 2017 to 2022
Strategic Priority: Western Treatment Plant Future Land Use Plan

The Western Treatment Plant treats about half of             the long-term economic, social and environmental values
Melbourne’s sewage, providing an essential public health     of the Western Treatment Plant for the benefit of the
service. It is a world leader in environmentally sensitive   community. The plan also embraces the opportunity
sewage treatment, an internationally recognised haven        to add further value by drawing on waste streams to
for wildlife, an environmentally sustainable farm and a      recover resources, enhancing renewable energy, building
well-loved site visited by thousands of people each year.    on the existing agricultural business and providing more
                                                             opportunities for ecotourism and recreation.
The Western Treatment Plant (WTP) Future Land Use Plan is
a plan that Melbourne Water has developed to maximise

                                                                                     An environmentally sustainable
                                                                                     farm that supports sewage
                                                                                     treatment and the biodiversity
                                                                                     conservation values

                                                                                     An internationally recognised
                                                                                     haven for wildlife and unique
                                                                                     endangered species

                                                                                    A world leader in environmentally
                                                                                    friendly sewage treatment

                                                                                     A well loved site visited by
                                                                                     thousands of people each year

                                                                              Corporate Plan 2017 to 2022 Melbourne Water   19
Strategic Priority: Western Treatment Plant Future Land Use Plan (cont.)

     Leading the way forward

     Over the 2017-18 to 2021-22 planning period, Melbourne Water will continue to develop the site and pursue innovative
     technologies that provide financial, social and environmental benefits. Collaboration with others is essential and Melbourne
     Water will explore partnerships and business models to develop future projects.

                                                                                                                                                                            Federation trail
                                                               Western Grasslands                                                                                Werribee
                                                                    Reserve                                                                                                      e
                                                                                                                                                                              urn
                                                                                                                                                                         elbo                  Werribee
                                                                                                                                                                     To M
                                                                                                                                                                                                Zoo

                                                                                                                         Outer metropolitan
                                                                                                                         ring transport corridor
                                                                                                                                                                  Recycled water                             Werribee Irrigation
                                                                                                                                                                  plant expansion                                 District

                                                                                                                                                                                    Werribee
                                                                                                                                                                                     River
                                                                                                                                           AY                                        Park
                                                                                                                                          W
                                                                                                                                      REE
                                                                                                                                   SF                  Cocoroc
                                                                                                                                 CE
                                                                                                                              IN
                                                                                                                            PR                                     Increased treatment
                                                                                    Northern                                                                       area to cater for future
                                                                                    Grasslands                                                                     growth, renewable
                                                                                                                                                                   energy and resource
                                                                                                                                                                   recovery

                                                                                                                                                                                                                         Wyndham
                                                                                                 Ryan's                                                                                                                  Harbour
                                                                                                 Swamp

                                         Green corridor
                                         may include cycle/
                                         walking paths

                                                                                                                                                                                      Main treatment precinct
                                                                                                                                                                                      including main lagoons, power
                                                                                                                                                                                      generation and biosolids
                                     g
                                  lon
                              Gee
                           To

                                                                                                                                             Port
                                                                                                      Boat ramp                             Phillip
                                                                                                                                             Bay

                                                                                                               Public access to core precinct for
                                                                                         Kirk Point            ecotourism, recreation and
                                                                                                               biodiversity conservation facilities.

          Avalon airport                                                 Significant coastal saltmarsh grows
                                                                         along the foreshore from the
                                                              The Spit   Beach Rd boat ramp to The Spit

20   Melbourne Water Corporate Plan 2017 to 2022
Healthy places
Co-creating the world’s most desirable places to live

At Melbourne Water we consider that liveability reflects the        Climate change is expected to increase flood risks due to more
wellbeing of a community and the many characteristics that          frequent intense rainstorms and rising sea levels. It is estimated
make a city a place where people want to live, now and in the       that approximately 232,000 properties in our region have a
future.                                                             1 per cent chance of flooding in any given year. The annual
                                                                    average damage caused by floods in our region is approximately
Melbourne Water is a custodian of over 33,000 hectares of land      $400 million and the consequences of floods are serious for
in the Port Phillip and Westernport region and we support our       communities living in affected areas.
Healthy Places pillar by managing the impacts of climate change,
protecting the region from floods and facilitating enhanced         In 2015-16 we implemented the flood mapping program which is
public access to nature and green spaces.                           designed to better understand and reduce the effects of floods.
                                                                    Through this program flood mapping tools have identified the
We enhance Melbourne’s reputation as the ‘world’s most              risk of flooding across the region and increased our knowledge
liveability city’ by opening up our land for community use, where   of Melbourne’s drainage network. Over the 2017-18 planning
it is safe to do so. A recent example of this work is the role we   period, we will continue to focus our efforts in areas of greatest
played in establishing the Greening the Pipeline (GTP) project.     risk by investing in new drainage infrastructure. The Flood
GTP was initiated in 2015-16 to revitalise industrial land in       Management Strategy will focus on building collaboration
Melbourne’s West into recreational open space and in April 2017     between organisations that contribute to flood management and
we successfully launched the first pilot community parkland         help engage the community to build resilience and awareness.
for GTP in Williams Landing. We will continue to reimagine the
remaining sections of the project to transform the GTP into a
natural, vibrant public asset for Melbourne’s west.

                                                                                      Corporate Plan 2017 to 2022 Melbourne Water     21
Flood management and drainage services
We will continue to make our region resilient to floods and manage the impacts of
climate change and urban development.

     Flooding in our region
     The Port Phillip and Westernport region

     The region includes almost all of the Port                                       Sunbury
     Phillip and Westernport catchments, and                                                                                Healesville

     is home to over four million people.

     Legend:                                                                                        Melbourne

                                                                                  Werribee
                  Stormwater flooding                                                                           Dandenong
                  Riverine flooding                                                   Port Phillip Bay
                  Coastal flooding
                                                                  Geelong
                  Established urban areas
                  Growth corridors

                                                                        Bass Strait

Figure 11 - Flooding in the Port Phillip and Westernport region

Melbourne Water is the floodplain manager for the
                                                                                      Melbourne Water and the VICSES
Port Phillip and Westernport region and we have the
responsibility of identifying and reducing flood risk to
protect the community.                                                                Melbourne Water’s 10 year partnership with the VICSES
                                                                                      focuses on developing key information and educational

We work collaboratively with 38 Melbourne metropolitan                                campaigns to increase flood awareness, preparedness

councils and the Victorian State Emergency Services                                   and support community resilience. Targeted flood

(VICSES) on flood management plans and provide flood                                  education and awareness will continue over the 2017-

advice on new developments and lead projects to address                               18 to 2021-22 planning period with regular assessment

existing and future flood risks across Melbourne.                                     of the program effectiveness and community support.

Through our Flood Management Strategy - Port Phillip
and Westernport, we will continue to build our collective
knowledge and capability, drawing on a wide range of flood
management approaches to better address community
concerns, minimise the effects of floods and manage the
challenges of urban growth and climate change. Refer to
Strategic Priority: Flood Management Strategy for more
information.

22   Melbourne Water Corporate Plan 2017 to 2022
We help reduce the risk of floods by:                                  Rising sea levels
•    maintaining 1618 kilometres of stormwater drains
                                                                       Rising sea levels are likely to have an impact on flooding in the
•    managing and upgrading 230 retarding basin                        Port Phillip and Westernport region. Melbourne Water is working
•    developing flood mapping and modelling                            with the Victorian Government and local councils to address
                                                                       rising sea levels through initiatives and research projects such as:
•    building new flood protection assets
                                                                       •     sea level rise assessments of developed areas along
•    managing waterways to help reduce the impacts of flooding
                                                                             coastlines
•    raising awareness of flood risks and responses through
                                                                       •     the Australian Rainfall and Runoff Review
     education programs
                                                                       •     flood modelling around climate change scenarios
•    providing data for warning systems
                                                                       •     a business-wide Climate Change Adaptation Strategy.
•    assessing and placing conditions on town planning permits.

           Council drainage networks        MWC drainage network           Council boundaries          MWC Drainage and Waterway boundaries

Figure 12 - Melbourne Water and council drainage networks

Capital program

Over the 2017-18 to 2021-22 planning period Melbourne Water will continue to minimise the damage caused by floods to our
community through our capital and development planning. Total planned capital expenditure on flood and drainage program is $270
million, which accounts for 10.7 per cent of Melbourne Water’s total capital expenditure. Capital projects for the 2017-18 to 2021-22
planning period are shown in Figure 13 and key significant projects are detailed in Appendix C.

                                                                                            Corporate Plan 2017 to 2022 Melbourne Water       23
Figure 13                                                                                   Figure 14

                                         5 Year Corporate Plan by Product

                     70.0
                                                        Corporate Plan $270M
                     60.0

                     50.0

                     40.0
       Nominal $'M

                     30.0

                                                                                                             Compliance $210.2M
                     20.0
                                                                                                             Growth $0M
                     10.0                                                                                    Renewals $47.8M

                                                                                                             Strategic/Risk Mgt $12.3M
                      0.0
                             2016/17    2017/18    2018/19    2019/20      2020/21   2021/22

Figure 13 - Key flood capital programs/projects for the 2017-18 to 2021-22 planning period.
Figure 14 - Breakdown for capital expenditure for flood & drainage.

Key flood management and drainage projects:

        New flood management strategy

         Our new Flood Management Strategy – Port Phillip and Westernport builds on decades of flood management experience and is
         aligned with the Victorian Floodplain Management Strategy.

         It focuses on building greater collaboration between organisations involved in flood management and is intended to guide
         future investment to improve how we manage and reduce flood risks.

        Additional investment in drainage infrastructure

         Melbourne Water will invest $270 million over the 2017-18 to 2021-22 planning period on drainage infrastructure to reduce
         the impacts of flooding on local communities.

         Key investment includes:

         •            Murrumbeena flood mitigation ($38.1 million)

         •            Retarding basin spillway upgrades ($28.5 million).

24     Melbourne Water Corporate Plan 2017 to 2022
New decision-making system to improve flood management

A new Flood Integrated Decision Support System was recently launched to improve decision making around flood
management.

A further $15 million will be invested on flood mapping tools. This will help Melbourne Water provide early and timely
information to the community, emergency services and other stakeholders.

Strategic Priority: Flood Management Strategy

Flood risks have been actively managed in Port Phillip and Westernport for many years. Melbourne Water’s Flood
Management Strategy – Port Phillip and Westernport sets out how we will continue to work with other agencies and the
community to understand, avoid and better manage flood risks. It also outlines how we can support flood emergency
preparation and response, across the Port Phillip and Westernport region.

    The flood strategy vision for Port Phillip and Westernport

    Together we are aware, responsive and resilient. Communities, business and government understand flooding, plan for
    challenges, and take action to manage risks.

  Strategic objectives

    1. The right information is                2. Flood risks are addressed to                3. Land, water and emergency
    available at the right time to             reduce impacts and get the best                agencies work together to
    people who need it.                        social, economic and environmental             manage flooding effectively.
                                               outcomes.

In recent years urban planning and development standards            Flood risks are managed by working in areas where the
have been improved to ensure new developments are safe              need is greatest and where the benefits of taking action are
from floods and avoid increasing the level of flood waters          most cost effective.
on nearby properties.
                                                                    Through the Flood Management Strategy – Port Phillip and
Flood mapping has also been completed for much of the               Westernport, Melbourne Water will use the knowledge and
Port Phillip and Westernport region to understand where             experience we have developed over many years to improve
and how often floods may occur, particularly in locations           how we work and respond to the future challenges of
where older urban areas were established without                    climate change and a growing population.
consideration of possible flood risks.
                                                                    The strategy includes 65 actions to help prioritise and
In areas of new urban development, flood mapping                    manage current and future flood risks, using the knowledge
information is now used to ensure safe development. It              and expertise of all organisations that contribute to
is also used to support flood education, warning systems,           managing flood risk. Figure 15 outlines how we will identify
emergency management programs and infrastructure                    and prioritise flood prone areas and implement the right
improvements.                                                       mix of solutions.

                                                                                        Corporate Plan 2017 to 2022 Melbourne Water   25
Strategic Priority: Flood Management Strategy

           The flood management decision making framework

           More information and data will be used to inform the process (e.g. local floods, community needs, costs and benefits and climate change)

               Prioritise             Assess               Prioritise                                  Identify
                                                                                 Develop
             and complete          flood effects           locations                                   best-fit             Implementation
                                                                                 options
               mapping               and risks                                                         solution

                                        Community and government input helps inform each step
           This diagram shows the decision making framework outlined in the strategy, and how improved information will be used in our processes.

     Figure 15 - Flood management decision-making framework.

Liveability                                                                       benefit of the community. We will also undertake a review of
                                                                                  both of our capital programs to include recreational assessments
                                                                                  on projects to increase community access wherever possible.
                                                                                  Performance targets will be set to measure the community
We will facilitate community access to                                            satisfaction that results from natural and recreational assets
quality open space.                                                               situated on Melbourne Water land.

There is strong evidence of a positive relationship between
providing access to safe, green open space and the physical
health and wellbeing of our communities. As Melbourne grows it
is becoming more important to provide opportunities for exercise
such as cycling and walking, community interactions and access
to open outdoor areas.

Recreation occurs on our land in many different forms, from
the reservoir parks (managed by Parks Victoria), formal shared
pathways with management agreements, football ovals
located in retarding basins, BBQ facilities, picnic tables or other
recreational infrastructure constructed on our land as well as
informal walking trails.

Melbourne Water will continue to work collaboratively with
community groups, not-for-profits, and both local and State
government to innovatively use our land and assets for the

26   Melbourne Water Corporate Plan 2017 to 2022
Case Study: Our Space, Your Place

Our Space, Your Place is a map-based online application that identifies potential public access to 303,000 hectares of
land managed by Melbourne Water. The app explains details of the availability, size and potential use of our land and
outlines a process for use, with a focus on projects that benefit the community.

The app was tested with customers to ensure it is intuitive and aligned to our Digital Vision of being Safer, Smarter, Faster
and Easier to work with.

Examples of successful projects include:

 Use/Activities                                                Status of Application

 Community garden run by Hope City Mission. The                Lease approved.
 community garden aims to help people who struggle to
 afford healthy food.

 Community garden for youth with disabilities                  License currently being drafted by Melbourne Water.

 Solar powered farm                                            Melbourne Water is currently working with the group Energy
                                                               Democracy on finalising lease agreement.

 Bee Hive education                                            Lease approved by Melbourne Water. License will be finalised by
                                                               2017.

 Community garden along the Yarra river for Indigenous         Melbourne Water is currently working with the group Yarra Links
 revegetation education project                                on finalising a lease agreement.

                                                                                    Corporate Plan 2017 to 2022 Melbourne Water   27
Strategic Priority: Greening the Pipeline Project

      The Greening the Pipeline (GTP) project aims to convert 27 kilometres of the heritage-listed decommissioned Main
      Outfall Sewer into parkland. Over the next few years the old sewer pipe will be transformed into a vibrant green corridor
      that links up communities throughout Melbourne’s west and improve liveability.

      The project is a partnership between Melbourne Water, Wyndham City Council, VicRoads and City West Water. It is being
      managed by a dedicated project coordinator employed by Wyndham City Council, and co-funded by Melbourne Water
      and City West Water. The vision is to create a green public asset that connects communities and provides places for
      people to meet, play and relax.

           Highlights to date include:

           •    extensive community and stakeholder consultation
           •    Williams Landing pilot parkland opened April 2017
           •    Greening the Pipeline video

      Figure 16 - Greening the Pipeline website.

28   Melbourne Water Corporate Plan 2017 to 2022
Local residents’ and businesses’ ideas for the future of the pipeline
(121 ideas, 46 supports)

                                   1.8% 1.8%
                            1.8%
                     2.4%
              2.4%
                                                                                      Active transport infrastructure (27.9%)
                                                                                      Facilities for exercising (13.9%)

                                                                                      Vegetation (13.3%)
               3.6%
                                                     27.9%
                                                                                      Other (10.9%)
            4.2%
                                                                                      Other (Better lighting 7.9%)

                                                                                      Community garden (7.9%)
      7.9%
                                                                                      BBQ and picnic areas (4.2%)

                                                                                      Facilities for community events (3.6%)

       7.9%                                                                           Facilities for children (2.4%)

                                                                                      Public art (2.4%)
                                                      13.9%
                                                                                      Dog park (1.8%)
                   10.9%                                                              Ponds (1.8%)

                                           13.3%                                      Skate park (1.8%)

Figure 17 - Local ideas for the Greening the Pipeline Project.

Greening the Pipeline five-year priorities                       Continue to work with key Victorian Government agencies
                                                                 on projects that could potentially impact the pipeline such
Technical                                                        as:
Develop, specific design guidelines and zone master              •     VicRoads as they develop the Outer Suburban
planning for the pipeline.                                             Arterial Road Project

                                                                 •     Victorian Planning Authority as they develop the East
Funding
                                                                       Werribee Employment Precinct.
Continue to seek funding for the project including
exploring alternative funding opportunities (i.e. private
                                                                 Communications and education
funding).
                                                                 Continue to promote the project, and share lessons
                                                                 learned with industry.
Consultation
Undertake ongoing consultation with stakeholders such
                                                                 Research
as local residents, Aboriginal groups and developers, and
                                                                 Collaborate with CRC for Water Sensitive Cities who want
build on relationships with project partners.
                                                                 to use the Greening the Pipeline Project as a case study.

                                                                                   Corporate Plan 2017 to 2022 Melbourne Water   29
A Water Sensitive City                                                •    environmentally: increases the amount of water available
                                                                           for environmental flows and reduces impacts to the
                                                                           environment from such things as pollution, stormwater and
Melbourne Water takes an integrated approach to water                      treated wastewater.
management that brings together all facets of the water cycle
such as water supply, sewerage management, treatment and
                                                                      The Cooperative Research Centre for Water Sensitive Cities
stormwater – to deliver sustainable benefits for the wider
                                                                      has established a Water Sensitive Cities (WSC) Index that is
community.
                                                                      designed to provide a global benchmark against water sensitive
                                                                      performances and practices. As a result, Melbourne’s WSC index
Diversifying our water services helps strengthen the reliability of
                                                                      score is 2.5 out 5. To help improve the WSC Index and co-create
water supply through efficient resource use and recovery. Using
                                                                      the world’s most liveable places, Melbourne Water has set a
alternative water sources to meet demand also makes better
                                                                      strategic key performance indicator to measure our performance.
use of all the water available to us and saves drinking water for
                                                                      We are also partnering to deliver innovative solutions in urban
specific purposes where high quality water is needed.
                                                                      water management such as stormwater capture and urban
Melbourne Water invests in developing alternative sources of
                                                                      cooling. For more detail refer to Appendix B.
water, primarily through stormwater harvesting and recycling
treated water from sewerage networks.
                                                                      Stormwater management
We use an integrated water management approach that
                                                                      Stormwater is rainwater that has fallen onto surfaces such
supports:
                                                                      as roads or roofs and runs off into the drainage network.
•    collaboration with customers and stakeholders to promote
                                                                      Stormwater harvesting is the collection, accumulation or
     new and diverse water resources
                                                                      treatment of stormwater for reuse.
•    integrated water and urban development planning
•    finding ways to obtain multiple benefits from our natural        Stormwater can be collected and used for many purposes
     and built assets                                                 including watering sports grounds, parks and gardens, and
•    managing the water supply system to meet urban,                  replenishing wetland habitats.
     environmental and agricultural needs                             Water Sensitive Urban Design (WSUD) is an approach to
                                                                      planning and designing urban areas that makes use of this
•    undertaking long-term planning to address the needs of a
                                                                      valuable resource and reduces the harm it causes to rivers and
     growing population, climate change and variability.
                                                                      creeks.

Taking a holistic, integrated approach to Melbourne’s water cycle
                                                                      Melbourne Water is responsible for the licensing of surface
helps in the following ways:
                                                                      water from some catchments and its own works, which
•    socially: provides for public health and safety benefits,        includes stormwater licensing to help deliver integrated water
     open spaces and sports fields, reduces the urban heat-island     management.
     effect and improves the resilience of the water supply
     system to climate change

•    economically: provides affordable services and seeks
     opportunities for growth, especially in industry and
     agriculture

      Case Study: Stormwater Management - Black Forest Road, Werribee

      The population of Melbourne is projected to increase from 4.6 million people in 2016 to 6 million people in 2031 and
      upwards of 8 million people in 2051. Around 50 per cent of Melbourne’s population growth is expected to occur in
      Melbourne’s western suburbs with a projected new 712,000 residents by 2031 alone. With new development comes more
      stormwater.

30   Melbourne Water Corporate Plan 2017 to 2022
Case Study: Stormwater Management - Black Forest Road, Werribee (cont.)

      Water availability is important for the liveability of cities and towns. In addition to meeting our basic drinking water needs
      and providing confidence to industry, water is essential for cool, green urban areas. Using diverse water sources will lessen
      pressure on drinking water supplies, increase urban water security and help keep our cities and towns liveable through
      drought.

      Urban development proposed for the Black Forest Road area within the Lollypop Creek catchment is 894 hectares (total
      developed area including existing urban area will be 1,216 hectares). The area contains three Precinct Structure Plans. The
      key water cycle issue is the effective management of excess stormwater as urban growth proceeds.

      Melbourne Water is working with developers, the local council and the retail water company to develop a stormwater
      management plan that protects internationally significant habitat from damage by stormwater and makes use of the
      alternative water for non-drinking uses such as toilet flushing or irrigation of both private and public open space.

      Stormwater flows will be managed through an integrated system that generally maintains flows beyond the precinct
      to pre-development levels. The precinct will require a range of constructed open waterways linked to a network of
      wetland/retarding basins. These areas could become important and functional parts of the precinct’s open space network,
      particularly adjacent to the local town centre. Investigations will take place during 2017-18, with construction likely to
      commence in late 2018.

Recycled water                                                          A large percentage of recycled water is used on site at both water
                                                                        treatment plants:
Both of Melbourne’s sewage treatment plants produce Class A
and Class C recycled water for use on site and to supply a range        •    Eastern Treatment Plant supplies approximately 17,132

of offsite customers. The Western Treatment Plant was the first              million litres of recycled water to customers and uses

plant in Victoria to produce the highest recycled class recycled             around 9509 million litres on site.

water which is Class A. Class C is treated to a lower standard and      •    Western Treatment Plant supplies approximately 25,753
has a greater restriction on its uses. Recycled water is typically           million litres of recycled water to customers and uses
supplied to offsite customers for:                                           around 19,560 million litres on site.

•    irrigating pastures and public open spaces

•    intensive agriculture and horticulture

•    toilet flushing and garden watering at residential estates

•    industrial processes and wash down facilities.

Examples of recycled water use

     Werribee Tourist Precinct                                               Werribee Employment Precinct

     We provide recycled water to this precinct for a range of               We have supplied recycled water to Werribee
     landscaping and non-potable purposes. Key customers                     Employment Precinct since June 2007. A 900-hectare
     include Werribee Park Golf Club, Werribee Open Range                    site, the precinct is home to a number of high profile
     Zoo and Werribee Park and Mansion.                                      research and learning institutions.

                                                                                            Corporate Plan 2017 to 2022 Melbourne Water   31
Eastern Irrigation Scheme                                         Residential dual pipe supply

     More than 80 customers access recycled water through             Several housing estates around Cranbourne use a dual
     this scheme via recycled water supplier, TopAq, for              pipe system to access recycled water for watering
     horticulture, open space irrigation and industrial               gardens, flushing toilets and watering streetscapes and
     processes.                                                       open spaces.

      2017-18 to 2021-22

      $18M
      FORECAST REVENUE FOR RECYCLED WATER SERVICES

Capital program

Forecast recycled water revenue for the 2017-18 to 2021-22
planning period is $18 million while operational expenditure
                                                                                                            Labour $5.1M
is forecast at $17.5 million. This accounts for 0.4 per cent of                                             External Services $10.9M
Melbourne Water’s total expenditure. Total planned capital                                                  Materials $1.1M
expenditure for recycled water services for the period is $5.9
million, with no significant capital works programs planned.

Revenue and expenditure

Figure 18 shows the breakdown of direct operational expenditure   Figure 18 – Breakdown of direct operational expenditure for
for recycled water.                                               recycled water.

      Strategic Priority: Arden Macaulay Redevelopment

      Arden Macaulay is a city-shaping project on the northern    featuring a wide variety of well-designed open spaces.
      edge of Melbourne’s CBD that will transform the area into   Melbourne Water is working closely with the Victorian
      one of the best examples of urban regeneration in the       Planning Authority and the City of Melbourne to develop
      world.                                                      and implement a water sensitive strategy for the precinct,
                                                                  which includes flood mitigation.
      By 2051, it is projected that Arden Macaulay will be home
      to 27,000 residents, supporting nearly 45,000 jobs and

32   Melbourne Water Corporate Plan 2017 to 2022
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