Infrastructure Strategy - Tauranga City Council

 
Infrastructure Strategy - Tauranga City Council
05   Infrastructure
     Strategy
Infrastructure Strategy - Tauranga City Council
Infrastructure Strategy - Tauranga City Council
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Infrastructure Strategy (2018-2048)

Introduction                                                     Strategic Context
This Infrastructure Strategy, alongside the Financial            Supporting this context is a series of city strategies
Strategy, demonstrates how Tauranga City Council                 developed alongside the Infrastructure Strategy and
(“Council”) plans to manage its assets prudently and             2018-2028 Long Term Plan. These include the Tauranga
sustainably through future periods of growth and other           Urban Strategy, the Community Wellbeing Strategic Plan,
pressures. A 30-year strategy provides long-term                 the Environment Strategy and an updated Transport
thinking to significant decisions around investment in           Strategy. All aspects of this strategic framework
infrastructure.                                                  have been used in development of the 2018-2048
                                                                 Infrastructure Strategy.
Council’s Infrastructure Strategy focuses on the following:
                                                                 In order to provide the quality of life and quality of
   •   Providing the infrastructure required for resilience
                                                                 economy that will enable a higher standard of living for all
       and growth in a manner that aligns with our
                                                                 in Tauranga, the city needs ‘sound city foundations’.
       Financial Strategy;
                                                                 Some, but not all, of these foundations relate to physical
   •   Ensuring we are able to maintain current levels of
                                                                 infrastructure, the ‘hardware’ that enables the provision
       service through growth and other pressures; and
                                                                 of core services across the city. Again, some, but not all,
   •   Maintaining our assets in a prudent and                   of this infrastructure is provided or owned or managed
       sustainable manner.                                       (or all three) by Council. Other ‘core’ infrastructure
WHAT IS ‘INFRASTRUCTURE’?                                        that helps form ‘sound city foundations’ includes
                                                                 telecommunications networks, electricity networks, gas
Infrastructure, in this strategy, is defined as the ‘hardware’   networks, the rail network and the state highway network
delivered by Council which is required to deliver core           (owned by the New Zealand Transport Agency).
services. This includes structures, pipes, pumps,
treatment plants, reservoirs, roads, footpaths, bridges,         This Infrastructure Strategy recognises the importance of
drains etc. as well as the hardware that provides for social     those other networks but focuses only on Council’s role in
amenity such as libraries, community centres, reserves,          infrastructure.
sports facilities, performance facilities, etc.
For the purposes of this strategy, the following types of
infrastructure have been excluded:
   •   Airport infrastructure;
   •   Council’s ICT infrastructure; and
   •   Council’s administrative and property
       infrastructure.

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       Infrastructure Strategy (2018-2048)

       Summary of key issues                                                  However, following the recent adoption of the Tauranga
                                                                              Urban Strategy, it is anticipated that a greater proportion
                                                                                                                                                      This model reduces Council’s up-front costs relating to
                                                                                                                                                      growth management.
                                                                              of future growth will occur in the existing urban areas,
       This Infrastructure Strategy addresses key infrastructure-                                                                                     Council has applied to the government’s Housing
                                                                              specifically in the City Centre and in and around existing
       related issues facing the city. To a greater or lesser extent                                                                                  Infrastructure Fund for funding assistance with key
                                                                              town centres. This is unlikely to mean an early change to
       these relate to all asset types. The key issues are:                                                                                           growth projects. Detailed business cases have been
                                                                              where growth goes, but over the next 5-10 years it is the
                                                                                                                                                      prepared for funding related to the Te Tumu growth area,
           •   Growth                                                         intention of Council to plan and invest for more growth
                                                                                                                                                      the Waiari water supply project, and improvements to the
           •   Resilience                                                     occurring within the city.
                                                                                                                                                      Te Maunga wastewater treatment plant. The outcome of
           •   Amenity                                                        The content and direction of the Tauranga Urban Strategy                the Housing Infrastructure Fund process will be known
                                                                              will be a core component of Council’s contribution to the               later in 2018.
           •   Delivery
                                                                              Future Development Strategy required to meet the National
                                                                                                                                                      Across the various growth areas, this Infrastructure
       GROWTH                                                                 Policy Statement on Urban Development Capacity.
                                                                                                                                                      Strategy includes the following capital costs:
       Tauranga is a growing city. This growth puts pressure                  The core components of the draft Tauranga Urban
       on existing infrastructure and creates the need for new                Strategy are:                                                                                            Years 1-10      Years 11-30
       infrastructure.                                                             •   A greater number of houses within existing urban                 Wairakei and Te Tumu          $173,000,000     $126,000,000
       The assumptions underlying the Infrastructure Strategy                          areas;                                                           The Lakes, Tauriko and        $146,000,000     $129,000,000
       (and the rest of the Long Term Plan) are that initially the                 •   Provision of greater housing choice including                    Tauriko West
       majority of this growth will occur in greenfield sites on the                   smaller, more affordable houses;                                 Future developments at             nil1        $160,000,000
       city’s edges. This growth, currently totalling more than                                                                                         Keenan, Merrick, Joyce
                                                                                   •   More people living within easy access of shops                   and Belk roads
       80% of new dwellings, is occurring in greenfield areas
                                                                                       and facilities;
       and is assumed will continue in:
                                                                                   •   An enhanced public transport network to service                Intensification
           •   Wairakei and Te Tumu in Papamoa; and
                                                                                       growing town centres; and
           •   The Lakes, Tauriko West, Keenan Road, Merrick                                                                                          In addition to the above, provision is being made to
                                                                                   •   Investment in infrastructure, facilities, services,            accommodate additional growth in existing parts of
               Road, Upper Joyce Road and Upper Belk Road in
                                                                                       amenity, streetscape and quality urban design in               the city, especially in the City Centre but also other
               the south and south-west of the city.
                                                                                       and around town centres.                                       town centres. In the first ten years of the Infrastructure
       In the short term, the remaining 20% of growth is
                                                                              For new urban growth areas, the funding model promoted                  Strategy the following budgets have been allowed for,
       assumed to occur in the existing urban area.
                                                                              by Council is that Council provides infrastructure to the               predominantly in years 7 to 10:
                                                                              boundary of the growth area but all infrastructure within                   •    $27 million for Parks & Recreation land purchases
                                                                              the growth area is funded and delivered by the developer.
                                                                                                                                                          •    $19.35m for water, wastewater and stormwater

       1
         Planning will commence for the Keenan Road area in accordance with an agreement with Council’s SmartGrowth partners. No work has been agreed on or commenced regarding the other potential areas. The
       Future Development Strategy to be prepared in 2018 will determine the future development pattern post Te Tumu and Tauriko West. The outcome from the Future Development Strategy will be built into the 2021-51
       Infrastructure Strategy.

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       network improvements                                       •   Creating a transport network that enhances              Project costs (operational expenditure) of $1.7 million
   •   $29.55m for transportation network improvements                the attractiveness and liveability of the urban         have been budgeted for in the first three years of the
                                                                      environment.                                            Long Term Plan. At the conclusion of the operational
At this stage specific projects or locations have not been     Resilience                                                     expenditure project, Council will have good information
allocated to this funding.                                                                                                    on the priorities for capital expenditure to improve the
                                                               The fragmented, spread-out nature of the city, and its         resilience of its infrastructure assets.
To reflect the expected increase in urban intensification      location in a hydrologically and volcanically active region,
                                                               presents a number of resilience issues for infrastructure      To implement the expected capital works projects
in later years of the Infrastructure Strategy period and the                                                                  required to provide for more resilient infrastructure, the
impact this is likely to have on transportation networks,      provision.
                                                                                                                              following ‘placeholder’ budgets have been allocated in
the following budgets have been allowed for in years 11-       Council recognises that while it has reasonable                the Infrastructure Strategy:
30 (and again, no specific projects or locations have been     information on the potential impact of many natural
allocated to this funding):                                    hazards its information is incomplete. As such, Council
   •   $140m for transportation network improvements           is embarking on a significant project to better understand                        Years 1-3      Years 4-10        Years 11-30
                                                               risk and resilience issues across the city – specifically as
Transportation                                                 they apply to infrastructure and urban planning.
                                                                                                                               Parks                Nil         $8 million            Nil

While the impacts of growth are felt on all infrastructure                                                                     Transportation       Nil        $125 million       $200 million
                                                               This will ultimately inform expenditure within the 2021/31
types, the most visible impacts for most residents relate      Long Term Plan as well as having the potential to inform        Stormwater           Nil         $14 million       $40 million
to the transportation network.                                 land-use planning processes. While the initial focus of the     Wastewater           Nil         $14 million       $40 million
In response to this, the key elements proposed in the          work will be on Council-owned infrastructure, this project      Water Supply         Nil         $14 million       $40 million
Long Term Plan and this Infrastructure Strategy relate to      sits within a broader intention to address resilience issues
the following key priorities:                                  more holistically across the city. The broader resilience
                                                               project may apply to other infrastructure owners,              Social Infrastructure and Amenity
   •   Providing better transport choices – improved
                                                               communities / geographical areas (which may influence          In establishing and maintaining ‘sound city foundations’
       walking, cycling and public transport;
                                                               urban planning, land use and subdivision), and also            Council recognises that cities are about people. Achieving
   •   Reliable journey times for people and freight –         other aspects of resilience such as ‘social resilience’ and    a higher standard of living for all requires delivering
       lane and intersection capacity improvements;            ‘economic resilience’.                                         targeted responses to identified and understood social,
   •   Improving safety on our roads – targeted                The scope of work covered by this project is guided and        environmental, economic and cultural wellbeing gaps. A
       safety projects, speed management and minor             to some extent governed, by Council’s responsibilities         range of responses will be required, including,
       improvements;                                           under four sets of legislation: the Local Government Act;          •    improvements to amenity and public safety,
   •   Creating well connected communities and local           the Resource Management Act; the Building Act; and the
                                                               Civil Defence and Emergency Management (CDEM) Act.                 •    protection of the environment,
       services, improved connections for all modes to
       local services or housing; and

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              •   establishment of strong communities, and                     Additional amenity projects in years 11-30 will be                      amenity investments, including the enabling of
              •   the delivery of appropriate infrastructure to protect        provided to support growth in and around town centres                   Development Contribution funding following
                  and enhance current and future residents.                    as articulated in the Tauranga Urban Strategy. Additional               introduction of the Local Government (Community
                                                                               work is underway to identify the locations and extent of                Well-being) Amendment Bill in 20182; and
       In many cases, the Council is only one of a number of
                                                                               these investments.                                                  •   increasing the organisational capacity to plan for
       agencies and stakeholders responsible for the delivery of
                                                                               Delivery                                                                and deliver infrastructure projects.
       these.
       A range of delivery options have been assessed,                         Council’s forward infrastructure programme is significant.
       ranging from a complete reliance on developers or other                 In total it is markedly larger than in previous years. This is   Infrastructural context
       stakeholders, through to full funding by TCC. In balance,               a direct result of the growth in the city, the need to invest
                                                                                                                                                TOPOGRAPHY
       Council’s preferred contribution to this is focussed                    in ‘stepped’ increases in capacity for core infrastructure
       investment in a range of social infrastructure outcomes                 like water supply and wastewater, and of the need to             Tauranga City can be considered as two distinctive areas,
       over the next 10 and 30 years, spread across the city                   improve access to social infrastructure facilities and           separated by the Tauranga Harbour. The city is within
       centre, existing urban area and future greenfield sites.                amenity for current and future residents and visitors.           the Bay of Plenty region and forms the most populated
       Council’s investment will usually only be a part of the total                                                                            portion of the Western Bay of Plenty subregion.
                                                                               All planned projects on or related to existing infrastructure
       funding mix for each project, alongside a wide range of                                                                                  The southern/western side of the harbour (commonly
                                                                               assets are included in asset management plans and
       other funders and stakeholders. Major projects include:                                                                                  referred to as Tauranga) is rolling country of volcanic
                                                                               supported by the asset management system (Accela)
                                                                                                                                                origin. It consists of ridges and peninsulas comprised
                                                                               which incorporates factors such as renewal programming.
                                         Years 1-10      Years 11-30                                                                            from volcanic ash that generally run north-south from
                                                                               Asset Management Plans are regularly maintained
                                                                                                                                                the hills to the harbour. Between the ridges are deep,
           New Central Library           $39 million                           recognising asset condition and assessing renewals
                                                                                                                                                low lying gullies which have been eroded into the ash
           Performance venue in CBD                      $79 million
                                                                               requirements. There is currently no back log or deferred
                                                                                                                                                by streams. Urban development in this part of the city
                                                                               expenditure as all asset management requirements are up
           City centre investment fund   $24 million                                                                                            generally takes place on the volcanic ridges rather than in
                                                                               to date.
           Recreation and leisure hub    $30 million
                                                                                                                                                the gullies.
           at Memorial Park                                                    Council has taken a number of steps to ensure that the
                                                                                                                                                On the other side of the harbour lies the Coastal Strip,
                                                                               planned infrastructure is deliverable. These include:
           Parks in urban                $27 million                                                                                            extending 25km from Mount Maunganui through Omanu,
           intensification areas                                                   •   the negotiation of agreements with developers            Papamoa, Wairakei and Te Tumu to the Kaituna River at
           Land purchases for social     $28 million                                   whereby infrastructure within a development              the eastern end.
           infrastructure in Te Tumu                                                   area is provided by the developer leaving Council
           and western corridor                                                                                                                 The Coastal Strip consists of a series of long relic sand
                                                                                       to focus on the trunk infrastructure to the              dunes extending inland about 1km to 1.5km from the
           Community centres,            $108 million                                  development’s boundary;
           indoor pools, libraries and                                                                                                          coast. Between the dunes are low lying swales. Inland
           community centres in Te                                                 •   consideration of the range of contributors               of the relic dune system lies an old peat swamp which
           Tumu and Tauriko West
                                                                                       and funders for social infrastructure and                has been drained for agricultural purposes. In general,

       2
           http://www.legislation.govt.nz/bill/government/2018/0048/latest/LMS30972.html?src=qs

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urban development on the Coastal Strip is confined to         to be subject to a natural hazard are subject to the                      of this assessment;
the relic dune system, leading to a long ribbon type of       provisions of the Operative City Plan.                                •   undertake hazard assessments for specific
development along the coast.                                                                                                            hazards and/or locations where data is currently
                                                              RESILIENCE
NATURAL HAZARDS                                                                                                                         unavailable or of low confidence (this phase
                                                              Infrastructure risk and resilience assessment                             includes assessing cascading hazards i.e. impact
The City is located on land that is geologically sensitive    Council recognises the importance of helping create                       of coastal erosion and flooding in areas where
and partly in a coastal environment which is hydrologically   and sustain community resilience in all its guises. The                   future groundwater rises are expected);
dynamic. It is also located within a volcanically active      resilience of Council’s infrastructure assets is just one             •   undertake a criticality assessment of assets and
region which may present localised effects.                   element of a wider approach to resilience but, given                      improve any relevant asset information where it is
Natural hazards are defined in the Resource Management        the value of assets involved and the importance of the                    found to be missing or of low confidence; and
Act. Natural hazards identified within the Tauranga City      services those assets deliver, it is an important one in
                                                                                                                                    •   undertake a risk assessment and outage
environs include, but are not limited to:                     delivering ‘sound city foundations’.                                      assessment for critical assets and services to
   a) Earthquake induced subsidence and/or flooding,          For many years Council has been gathering data and                        determine where the risk of full or partial asset
      including liquefaction;                                 information about specific hazards and the potential                      failure has the greatest impact.
                                                              impacts on existing and planned infrastructure. Some of           Future steps for the project, depending on the findings
   b) Peat deposits and other highly compressible soils;
                                                              this data and information is current while some needs to          from the above steps, may include:
   c) Erosion and land slippage associated with               be updated. Some was gathered for a specific purpose,
      relic land slips and slip debris or overly steep                                                                              •   development of high-level risk mitigation
                                                              such as during the planning for new growth areas, and is
      topography;                                                                                                                       improvements for priority risks;
                                                              specific to a particular geographical area within the city.
   d) Flooding associated with stormwater overland                                                                                  •   development of rough-order costings for such
                                                              To improve its understanding of the hazards facing the
      flow paths and/or ponding;                                                                                                        mitigation measures; and
                                                              city and the consequent risks to the resilience of the
   e) Flooding associated with sea-level rise;                city’s infrastructure and the impacts on future urban                 •   development (or adaptation) of a prioritisation and
                                                              planning, and to be able to identify and assess the range                 decision-making process to consider financial
   f)   Tsunami or storm-induced flooding and coastal                                                                                   and non-financial costs and benefits of potential
                                                              of response options, Council is embarking on a significant
        erosion along and within the open and harbour                                                                                   mitigation improvements.
                                                              project over the next three years. Initially this project will:
        coastlines, in particular, the consequences of
                                                                  •   review current natural hazard and asset data to           Ultimately, this project will enable the identification of a
        less stable weather patterns resulting from global
                                                                                                                                prioritised list of projects that will improve the resilience
        warming.                                                      ensure it is of sufficient quality and confidence,
                                                                                                                                of Council’s infrastructure assets, and therefore the city’s
                                                                      and to identify any further work to fill data gaps;
The emphasis in the management of natural hazards is                                                                            resilience capacity, for consideration for inclusion in the
to encourage people to avoid situations in which they,            •   review current approaches regarding identifying           2021/31 Long Term Plan and 2021/51 Infrastructure
or their property, could be at risk. Subdivision, use and             criticality and risk management, and develop or           Strategy.
development, and the protection of natural and physical               adapt a fit-for-purpose approach for the purposes
resources contained within an area subject to or likely

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       In the meantime, ‘placeholder’ projects have been              This growth is attributed to Tauranga’s location, nationally    All assumptions regarding growth and demographics
       included in the 2018/28 Long Term Plan and this                strategic assets, climate and geography which combine           align to assumptions throughout the Long Term Plan,
       Infrastructure Strategy to recognise possible future           to make the City and its hinterland a desirable area to live,   Financial Strategy and supporting documentation.
       expenditure patterns. No decisions have yet been made          work, learn and play. A slowing of growth is anticipated
       on specific projects, costs or timings.                        from around 2039, but the city is expected to reach
                                                                      around 200,000 people by 2065.
       The inclusion of placeholder budgets is a prudent
       approach that plans for the likely financing and funding       As a growing city, a main driver for Council infrastructure
       requirements in these areas over the next ten years. The       development is ensuring that there is sufficient
       placeholder budgets are based on existing information on       infrastructure to provide for population growth. Council
       likely costs of upgrading assets including geotechnical        also aims to maintain current levels of service and ensure
       strengthening of bridges, upgrading wastewater plants,         that assets are resilient and well-maintained during this
       strengthening and restoration of coastal roads. These          growth period.
       costs reflect latest knowledge of unit costs in Waters and
       Transportation. The placeholder budgets will be reviewed       Growth Projections for Tauranga City
       and refined at the conclusion of the investigation stage
       of the resilience study. Key decisions will be made
       regarding prioritisation, funding and project management
       according to appropriate governance policies.

       Key City Growth Assumptions,
       Opportunities and Uncertainties
       Tauranga has been one of New Zealand’s fastest growing
       cities for the last 30 years. It is one of the few cities in
       New Zealand that is expected to grow significantly over
       the next 30 years. This growth puts significant pressure
       on the need to build and maintain infrastructure.
       Based upon information produced by the National
       Institute of Demographic and Economic Analysis (NIDEA),
       by 2048 there is predicted to be another 52,000 people
       living in Tauranga.

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Predicted Growth (Source: Tauranga City Population                       includes optimum (cost effective and timely) locations for     As much as possible the growth-related costs of
and Household Projection Review 2017 – combination                       future communities underpinning many of the projected          infrastructure developments have been transferred to
of Statistics NZ and NIDEA)                                              infrastructure developments in this Infrastructure Strategy.   developers through development contributions (more
                                                                         An important step that has anchored the sub-regional           information can be found within Council’s Development
                                        2018           2048              growth management approach has been to embed                   Contributions Policy at http://www.tauranga.govt.nz/
    Area                              13,440 ha     13,950 ha3           SmartGrowth settlement pattern policies into the Bay of        council/council-documents/development-contributions).

    Population                         134,600       186,700             Plenty Regional Policy Statement, the Tauranga Urban           In recent history Council has reached financial
                                                                         Strategy and the Operative City Plan. This ensures that        agreements with developers, resulting in them directly
    Proportion of people over 65         22%           39%
                                                                         the infrastructure development proposed is grounded in         funding infrastructure for new greenfield urban growth
    Number of dwellings                 57,300        91,900             all relevant planning documents.                               areas to minimise Council debt. Council intends to
    Number of one person                13,860        27,940
                                                                         More information on Smartgrowth can be found here:             continue and extend this approach to the funding of
    Households                                                                                                                          growth related infrastructure.
                                                                         https://www.smartgrowthbop.org.nz/
                                                                                                                                        Major growth areas currently under development and still
                                                                         INVESTMENT IN URBAN GROWTH AREAS
PLANNING FOR THE FUTURE                                                                                                                 requiring major infrastructure investment include:
                                                                         Over the last 20 years Tauranga has developed a number
In response to growth issues, Council, Western Bay                                                                                         •   Tauriko Business Estate
                                                                         of new or ‘greenfield’ growth areas. These include
of Plenty District Council and Bay of Plenty Regional                                                                                      •   Wairakei
                                                                         Bethlehem, Pyes Pa, Pyes Pa West, Tauriko Business
Council, along with Tangata Whenua, developed
                                                                         Estate, Ohauiti, Welcome Bay, Papamoa and Wairakei. In            •   Pyes Pa West.
SmartGrowth in 2004.
                                                                         addition there are housing development opportunities in
SmartGrowth is a 50 year, subregional growth strategy                                                                                   Key decisions regarding infrastructure requirements, both
                                                                         older, more established, city suburbs.
originally based on population, household and                                                                                           growth and level of service for activities such as Waters
                                                                         Building infrastructure in the main greenfield growth          and Transportation are included in existing structure
employment forecasting out to 2051. The strategy was
                                                                         areas is a continuing balancing act. Council’s focus is on     plans. Decisions regarding other areas such as social
reviewed in 2013 and has been extended to 2065.
                                                                         providing housing and business/employment choice while         infrastructure will be made as growth areas continue to
The main purpose of SmartGrowth (in a sub-regional                       managing the timing and scale of infrastructure projects       develop. These decisions will include consideration of
context) was to identify the level of long-term growth                   to support the development of land.                            level of service, community needs.
and respond by guiding planning decisions on areas
                                                                         The principle followed is to plan ahead (by way of
for greenfield development, residential intensification,
                                                                         identifying and structure planning growth areas) and then
industrial and business growth (including new commercial
                                                                         to deliver ‘just in time’ infrastructure to these areas in
centres) and space for reserves, schools, community
                                                                         order to minimise Council’s debt loading.
facilities and support infrastructure such as stormwater.
SmartGrowth has provided a holistic approach which

3
    Assumes boundary changes relating to Tauriko West, Keenan Road, and the Tauriko Business Estate.

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                                             Over the next 30 years the SmartGrowth strategy
                                             indicates a number of new growth areas within Tauranga:
                                                •   Tauriko Business Estate southern expansion
                                                •   Keenan Road
                                                •   Te Tumu
                                                •   Wairoa / Tauriko West
                                             Planning processes are underway for the Te Tumu and
                                             Tauriko West areas. Proposed changes to the City Plan
                                             regarding these areas are expected to be notified in the
                                             2018/19 financial year.

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                                                                                                                                           National Policy Statement
                                                                                                                                           The National Policy Statement (NPS) on Urban
                                                                                                                                           Development Capacity 20164 requires that Council
                                                                                                                                           plans for and well functioning urban environments that
                                                                                                                                           provide for people and communities’ wellbeing, including
                                                                                                                                           sufficient development capacity for housing and business
                                                                                                                                           activity as the city grows. Further, the NPS requires that
                                                                                                                                           an additional 20% of development capacity is available
                                                                                                                                           beyond projected demand in the short to medium term
                                                                                                                                           (out to 10yrs) and 15% beyond projected demand in the
                                                                                                                                           long term (10-30yrs). This over-provision of development
                                                                                                                                           capacity is required in an effort to ensure the efficient and
                                                                                                                                           competitive function of development markets.
                                                                                                                                           Council is not currently meeting the medium-term
                                                                                                                                           requirements of the NPS. To ensure the requirements
                                                                                                                                           are met, current planning processes for Te Tumu, Tauriko
                                                                                                                                           West and Keenan Road need to continue, and an
                                                                                                                                           increase in development intensity must occur both in new
                                                                                                                                           greenfield areas and in established parts of the city.

4
    http://www.mfe.govt.nz/sites/default/files/media/Towns%20and%20cities/National_Policy_Statement_on_Urban_Development_Capacity_2016-final.pdf

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       TAURANGA URBAN STRATEGY                                         these will occur multiple times over the timeframe of this          Plans from the original planned completion date
                                                                       infrastructure plan. Council would form a view on the               of 2013 to the current proposed commissioning in
       The impetus for the development of this strategy was
                                                                       challenge or change and participate in the right way at             2022.
       in part recognition of the lack of future rural land for
                                                                       the appropriate time.
       greenfield development within Tauranga city boundary. It
       was also due to a recognition that greenfield expansion         Council monitors changes in the economic environment         Renewals
       has led to some poor urban outcomes for Tauranga.               to understand when any deferred investment should be
       Accordingly the Tauranga Urban Strategy seeks to                brought back into the programme to match changes in          Council owns infrastructural assets (excluding road
       encourage, plan and invest for a greater proportion of          the city once the economy picks up again. Council also:      corridor land) to a total value of $1.34 billion. Council
       future growth within the existing urban area. This means                                                                     prepares comprehensive asset management plans to
                                                                          •   provides for infrastructure solutions that are
       additional investment in infrastructure to facilitate private                                                                ensure the best maintenance and decision making around
                                                                              adaptable (are planned/constructed in stages and
       sector development of more compact forms of housing in                                                                       these assets.
                                                                              giving consideration to unexpected changes)
       growth locations.                                                                                                            Information and assumptions relating to asset age,
                                                                          •   allows for financial flexibility to ensure capacity
       This is wholly consistent with the approach in the                                                                           physical description, condition and performance is
                                                                              is available and impacts are minimised from
       SmartGrowth strategy and will feed directly into the                                                                         contained in the Asset Management Plans developed
                                                                              external events
       Future Development Strategy as required by the National                                                                      for each of the asset types considered within this
                                                                          •   has built, or is building, infrastructure that can    Infrastructure Strategy. These are available on request.
       Policy Statement on Urban Development Capacity.
                                                                              cope with potential natural disasters                 Uncertainty around the assessment of asset life is
       UNCERTAINTY: HOW WILL TAURANGA CITY                                                                                          mitigated by regular condition assessment of the asset
                                                                          •   undertakes its renewals and maintenance
       COUNCIL REACT TO FUTURE CHANGE?                                                                                              and timing of renewals in the Asset Management Plan.
                                                                              programme based on the principle of ‘looking
       Council needs to be responsive to changes outside its                  after what we already have’.                          Council’s asset management approach comprises day
       direct control. This could include any of the following:        A recent example of adapting to external change was          to day operations, monitoring and planning. This is all
           •   Legislative, regulatory or funding changes              Council’s response to the 2008-13 economic slowdown          managed in-house by Council staff.
                                                                       and the associated slowing of local population growth.       Renewing existing infrastructure may be through a)
           •   Fluctuations in the world’s economy in terms of
                                                                       A large amount of growth-related infrastructure that         replacing what is there or b) rehabilitation (fixing what
               cycles of growth and recession
                                                                       was initially budgeted to occur in the 2006-16, 2009-19      is broken). A renewal strategy provides a progressive
           •   Responding to natural or unexpected events              and 2012-22 Long Term Plans was deferred. Examples           programme that maintains the overall standards and
           •   Changes in political climate                            include:                                                     value of all assets. This programme includes proactive
                                                                          •   The Southern Pipeline (in total c.$100M) was          inspections to monitor the condition of assets.
           •   Changes in organisational structure e.g.
               amalgamation                                                   originally projected to be open by 2010 but will      When planning a renewal programme Council considers
                                                                              now be completed in 2018.                             the financial and customer risks of having sufficient
           •   Changes in technology impacting on infrastructure
                                                                          •   The Waiari water supply project (in total c.$110M)    ongoing funds to deal with demand and increases in
       While it is impossible to accurately predict the timing,                                                                     maintenance or operational costs, balanced against the
                                                                              has been moved out in successive Long Term
       frequency or severity of these events, it is accepted that

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cost of renewal. This is called optimised decision making
and is recognised as best practice.
                                                               How is infrastructure funded?
Most of the Council infrastructure types are mature in the     Council’s current approach to the funding of most growth     New infrastructure, once in place and being used, brings
sense that the oldest parts of the network have reached        related infrastructure is that where possible, ‘growth       additional operating costs and depreciation charges
the end of their useful lives and are being renewed on         pays for growth’. New city-wide and urban growth area        which are charged to the general ratepayer.
an ongoing basis. The exception is the stormwater              infrastructure projects are funded by loans, and the costs
                                                                                                                            The following tables set out estimates of overall capital
infrastructure, which generally has a 100 year predicted       of the loans are funded by development contributions.
                                                                                                                            expenditure for the next 30 years. These figures have
life and the oldest pipes are only part way through their
                                                               All assumptions regarding costs, sustainability, growth      been adjusted for inflation.
useful lives.
                                                               and timing align with the Long Term Plan’s Financial
Council’s Lifecycle Management approach is to manage           Strategy, Supporting Documentation and various Asset
assets through the various lifecycle stages or phases from     Management Plans. Additionally, there are challenges in
conceptual phase to disposal whilst meeting the required       setting development contributions accurately which over
level of service, maximising benefits and minimising           time results in ratepayers picking up a portion of these
whole of life costs. Elements of lifecycle are:                ‘growth costs’.
   •   Requirements Definition
   •   Asset Planning                                          Total Capital Expenditure (CAPEX) by Type 2018-2048
   •   Asset Creation
   •   Operations and Maintenance
   •   Asset Monitoring
   •   Renewal/Rehabilitation
   •   Disposal

Levels of service
Levels of service for each activity at Council are regularly
reviewed to ensure they remain up to date and in
alignment with community demand, expectation and
ability to pay.
The relationship between levels of service and the cost
of the service (the price/quality relationship) is agreed
through consultation with the community to determine the
levels of service they are prepared to pay for.

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       Total Capital Expenditure (CAPEX) by Activity 2018-2048

       Operating Expenditure for all Infrastructure activities (including inflation)

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COMPARISON OF 2018 INFRASTRUCTURE                                    inflation projections for 2018-2021 being higher      of the system and could become more of an issue as
STRATEGY TO 2015 INFRASTRUCTURE STRATEGY                             than assumptions for the same period made in          development moves further south into higher ground in
                                                                     2016.                                                 the future.
Comparing the first three years of the 2018 Infrastructure
Strategy to the respective years of the 2015 Infrastructure                                                                An earlier issue of finding suitable reservoir sites at
Strategy (years 4 to 6) shows a significant increase in       Key Infrastructure Areas                                     the appropriate height above sea level has now been
expenditure. There are a number of reasons for the                                                                         resolved with sites secured for all of the storage that will
increase, the major ones of which are:                        1 Water supply                                               be required for the next 30 years and beyond. The raw
                                                                                                                           water intakes are sited in low lying streams to the south
   •   bringing forward projects relating to the Te Tumu
                                                              Tauranga City uses an average of 38,800 m3 of water per      of the city. The water is pumped up to treatment facilities
       and Tauriko West proposed urban growth areas
                                                              day and in summer this can rise to 57,000 m3 per day.        positioned on the ridges and then gravitates to service
       to meet housing demand and the National Policy
                                                                                                                           storage sites around the city.
       Statement on Urban Development Capacity, and           Tauranga’s water supply comes from the Tautau and
       (for Te Tumu) to enable the option of accessing the    Waiorohi Streams and is treated at two processing plants     INFORMATION ON COUNCIL ASSETS – WATER
       government’s Housing Infrastructure Fund (impact       - Oropi and Joyce Road. Both the Oropi and Joyce Road        SUPPLY
       on first three years approximately $120 million);      water treatment plants using microfiltration to provide a
                                                                                                                              •   14,156,000 m3 of water per year (or about 38,800
   •   the deferral of projects from 2015-2018 for            Grade “Aa” product to customers.
                                                                                                                                  m3 per day)
       practical or sequencing reasons or following           Council is committed to supplying a resilient and
                                                                                                                              •   two treatment plants with a peak load capacity of
       elected member direction ($45 million);                sustainable water supply. Council focuses on providing
                                                                                                                                  67,000 m3 per day
   •   the increase in value and change in timing of          a resilient water supply in a number of ways, including
                                                              protecting against contamination and providing storage          •   average total water supply consumption of 256
       assets expected to be vested to Council, being
                                                              reservoirs to increase resilience against network outages.          litres per person per day
       assets built by others and transferred to Council
       ($50 million);                                         Water supply consumption influences the volume of               •   average residential consumption of 180 litres per
                                                              wastewater requiring treatment, and as such these                   person per day
   •   the inclusion of non-Parks social infrastructure
       in this 2018 Infrastructure Strategy ($80 million,     two infrastructure/asset types are interconnected. A            •   catchment 2,500 ha
       excluding Te Tumu and Tauriko West);                   reduction in wastewater inflow was observed at the
                                                                                                                              •   length of pipes 1,360 km
                                                              treatment plants following universal metering and water
   •   an increased focus on cycling and public transport                                                                     •   15 reservoirs
                                                              conservation education initiatives.
       projects ($30 million);
                                                                                                                              •   hydrants 5,020
                                                              TOPOGRAPHY
   •   timing and budget changes on the Waiari water
                                                                                                                              •   metered water connections 54,440
       treatment plant and Te Maunga wastewater               The main effect of the topography on the water supply
       treatment plant projects ($40 million); and            is the need for more pressure zones in steeper parts of
   •   general cost increases and construction cost           the city in the south. This complicates the management

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       CRITICAL ASSETS                                                  •   Network flexibility to manage outages through        Government enquiry into Havelock North Drinking
                                                                            interconnected trunk mains.                          Water
       The Water Supply Asset Management Plan includes a
       detailed assessment of the criticality of individual assets      •   Utilises more than one surface water source          Council has considered the two reports from the
       within the water supply network. The most critical assets            (stream).                                            Havelock North Drinking Water Inquiry. Council has not
       within the network include:                                      •   Upgrading a number of reservoirs for resilience      made additional provisions in the Long Term Plan or
                                                                            against seismic events.                              Infrastructure Strategy as Tauranga’s treatment plants
           •   the Joyce Road and Oropi Road river intakes,
                                                                                                                                 deliver A-grade supplies, which is at the top end of the
               raw water rising mains, treatment plants, storage        •   Mitigating the risk of contamination through a       quality spectrum. The Havelock North report focuses
               reservoirs and associated trunk mains;                       backflow prevention programme                        on water treatment (specifically disinfection prior to
           •   pump stations and associated trunk mains at              •   Ongoing maintenance of assets which prevents         reticulation) which is part of our existing processes at
               Cambridge Road, Roger Guy Place, Waikite Road,               failure.                                             Oropi Road and Joyce Road and integral to the planning
               Oropi Road and Kaitemako Road; and                                                                                of the future Waiari scheme.
                                                                        •   Standby generation at the treatment plants.
           •   trunk mains to and from the Mangatawa, Mount                                                                      Other than the hard infrastructure issues requiring
                                                                        •   Telemetry system to improve reaction time and
               Maunganui, Cambridge Road and Poplar Lane                                                                         investment by some local authorities (which we don’t
                                                                            prevention of issues.
               reservoirs.                                                                                                       anticipate for Tauranga), the financial implications of the
                                                                        •   Obtained 35 year consents for water takes.           remaining relationship and organisational issues covered
       All critical assets are currently performing as required
       and, subject to the resilience study, are considered to be    PROTECTION OF PUBLIC HEALTH                                 in the recommendations of the report are difficult to
       reliable. The work undertaken on resilience and urban                                                                     anticipate at this stage.
                                                                     Council undertakes a number of tasks to protect public
       intensification may identify future scenarios including
                                                                     health. These include:                                      DEMAND MANAGEMENT
       environmental conditions and demand due to changes
       in urban density under which assets may need to be               •   providing “Aa” Grade water quality as defined        In order to meet demand for drinkable water, Council
       upgraded or enhanced. This information will be known                 by the MoH Drinking Water Standards for New          has undertaken a number of initiatives to slow down the
       once investigations are complete.                                    Zealand (2008) and the Public Health Grading         need for major investment in new infrastructure. A public
                                                                            of Community Drinking Water Supplies (2003)          education program was implemented in 1997 to provide
       RESILIENCE                                                                                                                assistance and education to promote the efficient use of
                                                                            guideline.
       Council provides Water Supply resilience in the following                                                                 water, and water meters were installed on all residential
                                                                        •   using micro-filtration as leading international
       ways:                                                                                                                     and business properties by 2002.
                                                                            technology at treatment plants, to produce high
           •   Catchment management and protection to reduce                quality water                                        The impact of universal metering and education on water
               the risk of water supply contamination.                                                                           demand resulted in the reduction in peak demand of
                                                                        •   preventing cross contamination of the supply
                                                                                                                                 approximately 30%, with average demand reducing by
           •   Providing service storage reservoirs to increase             system through a backflow protection programme
                                                                                                                                 about 25%. Such water demand management initiatives
               resilience against network outages. 48 hour              •   mitigating the risks of contamination to the water   have enabled Council to delay investment in a new water
               storage at average flow.                                     supply through Water Safety Plans.                   supply facility by 15 years.

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Water-use restrictions were imposed for the first time                      network requirements such as the bulk mains and service                   PROJECT HIGHLIGHTS5 – WATER SUPPLY
in 17 years (since before universal water metering was                      reservoirs.
introduced) during the 2017/18 summer. It is likely                                                                                                      Delivery                                              Total
                                                                            Consents for this project were obtained with construction                                Large Projects
that similar restrictions will occur over the next three                                                                                                  Year                                                 Costs
                                                                            for Stage 1 to start no later than 2019.
summers, negatively impacting on businesses and                                                                                                          2019-22     Waiari Project incl intake, treatment     $95M
households. These restrictions will no longer be required                   Prior to the commencement of the project, the Water                                      plant, reservoir, trunk mains
once the Waiari water treatment plant is commissioned                       Source Strategy was reviewed and updated in 2016.                            2019-22     Trunk Main Projects to Support Growth     $26M
(see below).                                                                The review reached the same conclusions and as such                                      in the Coastal Strip
                                                                            the Waiari project commenced in 2016 and will be                             2022-26     City-wide automated meter reading         $10M
INCREASE IN SUPPLY – WAIARI WATER TREATMENT                                 commissioned in 2021.
PLANT                                                                                                                                                    2022-48     Provision for future resilience ($2M      $54M
                                                                            The Oropi Water Treatment Plant is also planned to be                                    p.a.)
Growth predictions show that by 2022 the capacity of the                    expanded in around 2040 to provide additional water for                      2023-31     Three new reservoirs                      $10M
two existing treatment plants will be exceeded.                             growth.
                                                                                                                                                         2024-25     Bell Road trunk main                      $12M
A Water Source Strategy Review was undertaken in 2010                       SIGNIFICANT CURRENT DECISIONS                                                2025-27     Joyce Road treatment plant renewals       $5M
in which the following options were considered:
                                                                            The key investments in the water supply network in the                       2029-32     Waiari Water Supply Project –             $17M
      •    new water sources including groundwater sources                                                                                                           additional main
                                                                            early years of this Infrastructure Strategy reflect decisions
           and surface water sources such as the Wairoa,
                                                                            already made. Principal among these decisions include:                       2029-48     Te Tumu reticulation and internal mains   $14M
           Kaituna and Mangorewa rivers
                                                                                •    the servicing of existing urban growth areas;                       2029-48     Reticulation mains for new growth         $8M
      •    expansion of existing treatment plants                                                                                                                    areas
                                                                                •    the servicing of proposed urban growth areas at
      •    increased demand management methods.                                                                                                          2030-33     New urban growth area trunk mains         $12M
                                                                                     Te Tumu and Tauriko West; and
After significant assessment and consideration, the                                                                                                      2030-43     Three reservoirs servicing Tauranga       $18M
                                                                                •    the development of a third water treatment plant                                Central and West
preferred infrastructure development option was selected.
                                                                                     at the Waiari Stream close to Te Puke.
This is to build a new water treatment plant to source                                                                                                   2035-37     Waiari water supply – increase intake     $30M
water from the Waiari Stream in order to service growth in                  There are no significant current decisions relating to the                               and process capacity

the east of Tauranga.                                                       water supply network being consulted on through the                          2036-45     Four reservoirs servicing coastal strip   $21M
                                                                            2018/28 Long Term Plan process.
Based on this option, a 50-year, staged, Network                                                                                                         2037-38     New trunk main servicing Mount            $13M
                                                                                                                                                                     Maunganui
Development Plan and Waiari Water Treatment Plant
Plan was prepared, which included the stream intake,                                                                                                     2038-40     Waiari to Te Tumu trunk main              $21M
treatment plant and associated facilities and distribution                                                                                               2039-40     Oropi treatment plant upgrade             $4M

                                                                                                                                                         2041-43     Mains, reservoirs and pumps to service    $30M
                                                                                                                                                                     Belk Road growth

5
    Project highlights have been identified by a combination of scale and likely reader interest. ‘Business as usual’ projects such as renewals and maintenance projects have not been included.

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       RISKS                                                       Western Bay of Plenty District Council                         WHAT WILL THIS MEAN IN 30 YEARS?

       There are a number of serious short and long term risks     The water abstraction consent for the Waiari is jointly held   We will have:
       that the City would face if we did not proceed with this    with Western Bay of Plenty District Council (WBoPDC).
                                                                                                                                     •   Provided new infrastructure for new urban growth
       new infrastructure. These include:                          By agreement between the two councils, WBoPDC
                                                                                                                                         areas, including the Waiari Water Supply scheme,
                                                                   have rights to 15 million litres per day and Tauranga City
           •   inadequate future water supply to service                                                                                 reservoirs, bulk mains and upgrades to existing
                                                                   Council to 45 million litres per day.
               population growth or industrial growth                                                                                    plant.
                                                                   WBoPDC have indicated no need for water from the
           •   inadequate pressure and flow to supply water and                                                                      •   Implemented initiatives to further extend the life of
                                                                   Waiari in the short-term. As such, planning for the initial
               fight fires                                                                                                               water resources and existing infrastructure.
                                                                   stages of the Waiari Water Supply Project do not include
           •   public health would not be protected                specific provision for WBoPDC’s abstraction needs.                •   Improved network resilience and security of
           •   inability to provide a safe and resilient water     Planning does, however, provide for a relatively quick                supply.
               supply.                                             upscaling of the plant if such a demand is forthcoming
                                                                   from WBoPDC. Depending on the timing of any demand
       FUTURE DECISION-MAKING POINTS                               from WBoPDC this may require the acceleration of
       Consents                                                    future plant upgrades. Note that upgrades to meet
                                                                   WBoPDC demand for water are expected to be funded
       In 2026 the water abstraction consents for the Tautau and
                                                                   by WBoPDC.
       Waiarohi streams expire. These streams currently provide
       all of the city’s potable water, processed at the Joyce     RESILIENCE
       Road and Oropi Road water treatment plants respectively.
                                                                   The resilience of Council’s water supply network is
       Proposed Plan Change 9 to the Regional Council’s Water      of critical importance to the city. The infrastructure
       and Land Plan guarantees that municipal consents will be    resilience project discussed earlier in this Strategy will,
       renewed but does not guarantee that consented volumes       once completed, provide a clear understanding of the
       will remain the same. This creates some risk for the city   prioritised mitigation measures needed to improve the
       when new consents are sought. The most likely outcome       resilience of the network. At present a ‘holding’ budget
       is that the consents will be renewed but with reduced       of $2 million per annum has been included in the water
       consented volumes. This has been anticipated and built      supply budgets from the 2022 financial year onwards.
       into the planning for the development of the Waiari Water   This will be reassessed once the project is complete and
       Supply Project. In the event that consented abstraction     updated information will be reflected in the 2021/31 Long
       from the Tautau and Waiarohi streams falls to below the     Term Plan and 2021/51 Infrastructure Strategy.
       anticipated amounts, capacity increases at Waiari may
       have to be brought forward.

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2 Wastewater                                                   INFORMATION ON COUNCIL ASSETS –
                                                               WASTEWATER
                                                                                                                             All critical assets are currently performing as required
                                                                                                                             and, subject to the resilience study, are considered to be
                                                                                                                             reliable. The work undertaken on resilience and urban
Wastewater from the southern and western parts of the             •   There are two advanced treatment plants
                                                                                                                             intensification may identify future scenarios including
city is treated at the Chapel Street Waste Water Treatment
                                                                  •   These plants service over 50,000 properties            environmental conditions and demand due to changes
Plant (WWTP). The eastern part of the city (the Coastal
                                                                  •   All effluent passes through wetlands after             in urban density under which assets may need to be
Strip) is served by the Te Maunga WWTP. Treated effluent
                                                                      advanced treatment                                     upgraded or enhanced. This information will be known
from both WWTPs is directed through wetlands, ponds
                                                                                                                             once investigations are complete.
and an ultra-violet treatment unit at Te Maunga before            •   10,767,543 m3 was treated in 2016/17
being pumped out to sea through a 950m long marine                                                                           RESILIENCE
                                                                  •   225 litres is the average amount of wastewater
outfall off Papamoa Beach.
                                                                      produced per person per day                            Council provides Wastewater resilience in the following
Biosolids from the Chapel St WWTP are reused as                                                                              ways:
                                                                  •   There are 1,179 km of public wastewater mains
fertiliser.
                                                                  •   There are 160 pumping stations.                           •   Southern Pipeline provides network flexibility for
As with water supply, Council is committed to supplying                                                                             flows between treatment plants
a resilient wastewater network. The Southern Pipeline          CRITICAL ASSETS
provides network flexibility for flows between treatment                                                                        •   Telemetry system to improve reaction time and
                                                               The Wastewater Asset Management Plan includes a                      prevention of issues
plants, while the large Council site at Te Maunga will
                                                               detailed assessment of the criticality of individual assets
provide for future growth expansion. Council has also                                                                           •   Acquired large site at Te Maunga to provide for
                                                               within the wastewater network. The most critical assets
been granted 35 year consent for wastewater discharge.                                                                              future growth expansion
                                                               within the network include:
TOPOGRAPHY                                                                                                                      •   Ongoing maintenance of assets which prevents
                                                                  •   the Chapel Street and Te Maunga wastewater
                                                                                                                                    failure
In the rolling country on the Tauranga side of the harbour,           treatment plants;
wastewater reticulation generally consists of gravity                                                                           •   Standby generation at the treatment plants
                                                                  •   Memorial Park, Maleme Street, Judea, Opal Drive,
wastewater pipes flowing downhill around the land                     Bethlehem, Totara Street, McDonald Street and Te          •   Acquired 35 year consents for wastewater
contour to a small number of pump stations located in                 Maunga outfall pump stations;                                 discharge.
gullies or alongside the harbour. By contrast, the flat
                                                                  •   trunk mains and rising mains greater that 450mm        FUTURE DEMAND AND OPTIONS CONSIDERED
nature of the Coastal Strip means only short lengths
                                                                      in diameter including the Southern Pipeline (when
of gravity pipe are possible before the pipe reaches                                                                         Southern Pipeline
                                                                      commissioned), mains servicing the Tauranga
maximum depth, resulting in a large number of pump
                                                                      Hospital, and mains in proximity to, or crossing,      Facing a growing city, and in recognition that Chapel St
stations. As a result the city has one of the largest fleets
                                                                      rail lines, state highways or the harbour and          WWTP was reaching capacity, investigations began in
of pump stations in the country.
                                                                      estuaries.                                             the early 1990s to look at solutions for future wastewater
                                                                                                                             provision. The Southern Pipeline project was the result

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       Infrastructure Strategy (2018-2048)
       of these investigations and was approved by the Council                     process to decommission that pond is now underway and                     PROJECT HIGHLIGHTS6 – WASTEWATER
       in 2008.                                                                    the replacement process to thicken and dewater sludge
       The Southern Pipeline will be commissioned in 2018                          before being trucked off-site is under construction. Once                    Delivery                                            Total
                                                                                                                                                                            Large Projects
                                                                                   decommissioned as a sludge maturation pond it is likely                       Year                                               Costs
       and allows flows to Chapel St to be capped. All future
       increases in flow resulting from growth will then be                        that Pond 1 will provide a critical flow-balancing function                   2019       Landward section of ocean outfall       $16M
                                                                                   at Te Maunga, contributing to the efficient operation of                                 upgrade
       diverted to Te Maunga.
                                                                                   the plant and outfall. A final decision on the future of                     2019-23     Second bioreactor at Te Maunga          $12M
       Te Maunga                                                                   Pond 1 is expected within the next three years.                              2019-21     Te Tumu pump station and rising main    $10M
       The Te Maunga WWTP will be expanded stage by stage                          Chapel Street                                                                2019-28     Additional pump stations on coastal     $13M
       over the 30 years to treat the increase in wastewater flow                                                                                                           strip
       as the city’s population grows at a cost of around $105                     With the Southern Pipeline allowing the flows to the
                                                                                   Chapel Street WWTP to be capped, the plan is to                              2019-22     Papamoa rising main                     $10M
       million.
                                                                                   continue to operate the treatment plant largely as is. Only                  2024-28     Papamoa trunk main replacements         $13M
       The other significant planned project over the 30 years                     maintenance and normal renewals are planned.
       is the replacement of the ocean outfall pipeline when the                                                                                                2025-28     Seaward section of ocean outfall        $68M
                                                                                                                                                                            upgrade
       current outfall reaches capacity. This is currently forecast                SIGNIFICANT CURRENT DECISIONS
       to occur by 2028 at an estimated cost of around $68                                                                                                      2029-30     Tauriko West rising main                $7M
                                                                                   The key investments in the wastewater network in the
       million, but investigations are proceeding to optimise the                  early years of this Infrastructure Strategy reflect decisions                2029-32     Third bioreactor at Te Maunga           $16M
       performance of the existing outfall and thereby enable the                  already made. Principal among these decisions include:                       2022-25     Biosolids treatment improvements at     $8M
       new project to be deferred for a number of years.                                                                                                                    Te Maunga
                                                                                       •    the servicing of existing urban growth areas;
       Council holds a range of consents from Bay of Plenty                                                                                                     2029-32     Reticulation and pump station for Te    $22M
                                                                                       •    the servicing of proposed urban growth areas at                                 Tumu
       Regional Council associated with the operation of the
                                                                                            Te Tumu and Tauriko West; and
       WWTPs. The most significant is the consent to discharge                                                                                                  2029-48     Reticulation for future growth areas    $25M
       treated effluent to the ocean (BOPRC No 62878) which                            •    the concentration of future treatment capacity,                     2029-35     Expansion of biosolids capacity at Te   $16M
       has a 35 year term and expires in April 2041. However, a                             and therefore capital investment, at the Te                                     Maunga
       new consent will be required for the ocean outfall project.                          Maunga wastewater treatment plant.                                  2022-48     Provision for future resilience ($2M    $54M
       Planning for this is likely to commence within the next                     There are no significant current decisions relating to the
                                                                                                                                                                            p.a.)
       three years.                                                                wastewater network being consulted on through the                            2035-39     Further mains and pump stations to      $35M
                                                                                                                                                                            service Western Corridor
       In late 2015 Council became aware that it had breached                      2018/28 Long Term Plan process.
       a resource consent condition requiring that one of the
       ponds (referred to as Pond 1) at the Te Maunga WWTP
       be decommissioned as a sludge maturation pond. The

       6
           Project highlights have been identified by a combination of scale and likely reader interest. ‘Business as usual’ projects such as renewals and maintenance projects have not been included.

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RISKS                                                        additional expenditure would be required on both the           WHAT WILL THIS MEAN IN 30 YEARS?
                                                             reticulation network and the Te Maunga WWTP. This has
There are a number of serious short and long term risks                                                                     We will have:
                                                             not been provided for in the Infrastructure Strategy.
that Council would face if we did not proceed down this
                                                                                                                               •   Provided new infrastructure to provide for new
infrastructure development path.                             Expansion of Te Maunga WWTP
                                                                                                                                   urban growth areas; including the southern
These include:                                               The Te Maunga treatment plant will be expanded                        pipeline, a new ocean outfall pipeline and Te
                                                             as required to meet additional flows resulting from                   Maunga WWTP staged expansion.
   •    economic impact on the city as a whole and its
                                                             population and business growth.
        ability to grow
                                                             Biosolids
   •    businesses and industry would not be supported
                                                             Council is currently installing equipment to thicken and
   •    consent compliance unable to be maintained –
                                                             de-water biosolids prior to transporting to landfill. During
        this would lead to abatement notices, fines, and
                                                             the next three years, decisions will be made regarding the
        ‘reputation damage’
                                                             long-term use of residual biosolids with a view to ensuring
   •    increased blockages                                  a beneficial re-use rather than simply disposing to
   •    overflows into the environment.                      landfill. Investment in drying technology is the most likely
                                                             outcome (though other options are under investigation)
FUTURE DECISION-MAKING POINTS                                and has been provided for in years 2022 to 2025 of this
Levels of service                                            Infrastructure Strategy.

Over the next year, Council will consider, with the          Resilience
community, its city-wide targets for the management          The resilience of Council’s wastewater network is
of wastewater. This project will inform future resource      of critical importance to the city. The infrastructure
consent applications (including for the ocean outfall) and   resilience project discussed earlier in this Strategy will,
patterns of capital expenditure.                             once completed, provide a clear understanding of the
Long-term future of Chapel Street WWTP                       prioritised mitigation measures needed to improve the
                                                             resilience of the network. At present a ‘holding’ budget of
The Chapel Street WWTP is a valuable element of
                                                             $2 million per annum has been included in the wastewater
the wastewater network. This Infrastructure Strategy
                                                             budgets from the 2022 financial year onwards. This will
is prepared under the assumption that it will remain
                                                             be reassessed once the project is complete, and updated
operational until beyond 2048. However, given its
                                                             information will be reflected in the 2021/31 Long Term
proximity to retail and residential areas, this assumption
                                                             Plan and 2021/51 Infrastructure Strategy.
may be challenged over the next 30 years. If the Chapel
Street WWTP was to be decommissioned, significant

                                                                                                                                                                    Long Term Plan 2018-2028
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