water supply asset management plan 2020 - 2049
TRANSCRIPT
Abbreviations
AAS Australian Accounting Standard
ADWG Australian Drinking Water Guidelines
AHD Australian Height Datum
BOD Biological Oxygen Demand
BPM Best-Practice Management (NSW Department of Industry (Water) Planning Framework for LWUs)
CCTV Closed Circuit Television
CWP Capital Works Program
DCP Development Control Plan
DSP Development Servicing Plan
EP Equivalent Population
EPA NSW Environmental Protection Agency
ET Equivalent Tenement
FINMOD NSW Financial Planning Model (developed by NSW Department of Industry (Water))
I/I Inflow and Infiltration
IPART NSW Independent Pricing and Regulatory Tribunal
IWCM Integrated Water Cycle Management
kL Kilolitre (1,000 litres)
LOS Levels of Service
LTW Liquid Trade Waste
LWU Local Water Utility
ML Megalitre (1,000,000 litres)
OCC Orange City Council
p.a. per annum
SBP Strategic Business Plan
SPS Sewage Pump Station
TBL Triple Bottom Line
TRB Typical Residential Bill
WHS Work Health and Safety
WTP Water Treatment Plant (also: Water Filtration Plant)
WWTP Wastewater Treatment Plant (also: STP – Sewage Treatment Plant)
TABLE OF CONTENTS
1 Executive Summary ......................................................................................................................................... 2
2 Strategic Objectives ......................................................................................................................................... 4
3 Services Provided ............................................................................................................................................. 6
3.1 Orange Water Supply Scheme ............................................................................................................. 6
3.2 Spring Hill and Lucknow Water Supply Scheme .................................................................................. 7
3.3 Non-Potable Water Supply Scheme .................................................................................................... 8
4 Levels of Service ............................................................................................................................................. 10
5 Condition of Our Assets ................................................................................................................................. 13
6 Operational Plan ............................................................................................................................................ 16
7 Maintenance Plan .......................................................................................................................................... 19
8 Capital Renewal Plan ..................................................................................................................................... 21
9 Capital Upgrade & Expansion Plan ................................................................................................................ 25
10 Asset Rationalisation and Disposal Plan ........................................................................................................ 27
11 Financial Plan ................................................................................................................................................. 28
11.1 Summary of Model Inputs ................................................................................................................. 29
11.2 Water Fund Model Results ................................................................................................................ 32
12 Key Performance Measures ........................................................................................................................... 38
13 Risk Management Plan .................................................................................................................................. 39
14 Performance Review and Proposed Improvement Plan ............................................................................... 42
Appendix A: Operation & Maintenance Programs ................................................................................................ 43
Appendix B: Four Year Renewal Programs 2019-2022 .......................................................................................... 47
Appendix C: 30 Year Capital Works Program ........................................................................................................ 51
Appendix D: 30 Year Financial Plan ....................................................................................................................... 53
Appendix E: Water Supply Performance TBL Report ............................................... Error! Bookmark not defined.
Document Control
Rev No Date Revision Details Author Verifier Approver
1 19/03/2020 Draft AMP 2020 SM WB
Note: All figures expressed in this plan are in 2019/20 real (current) terms and NOT adjusted for inflation unless otherwise stated.
Water Supply Asset Management Plan
Orange City Council Page 2
1 Executive Summary
Orange City Council’s intention is to provide the City with a water supply network that is serviced and
maintained to a level which reflects the community’s expectations and operates in a manner that is both
functional and cost effective. The water asset portfolio had a fair value of $337,576,000 at 30 June 2019.
This plan assists Council in the decision making process and is presented at a high level to provide key
information that can be used in the determination of levels of service and funding required.
This plan’s primary objective is to meet the adopted Levels of Service, which cover the following areas:
Water quality, flow and pressure availability and capacity
Water availability during droughts and firefighting
Response times for system failures
Note that the Levels of Service are the targets which Council aims to meet; they are not intended as a formal
customer contract. Council’s performance in these areas is also presented in Section 12 – Performance
Measures.
Table 1-1 identifies the asset categories in this plan, the thirty year average costs and funding gap if one exists
between the available renewal budget and predicted renewal requirements.
Table 1-1: Water Supply Asset Portfolio Overview 2019-2048 (30yr Average Annual Costs)
Asset Renewal Upgrade & New Funding Gap Backlog 2019 Backlog 2048
Water Storage 330,000 293,000 -100,000 5,012,000 -2,987,000
Water Treatment Plant 485,000 865,000 831,000 -279,000 24,935,000
Water Reservoirs - 151,000 762,000 3,890,000 22,863,000
Water Pump Stations 7,000 8,000 774,000 -139,000 23,234,000
Water Trunk Mains - 403,000 1,204,000 5,121,000 36,135,000
Water Reticulation Mains 835,000 551,000 605,000 8,916,000 18,158,000
Other 418,000 190,000 - - -
Total 2,074,000 2,462,000 4,078,000 22,520,000 122,338,000
Negative figures indicate a surplus in the first year, which will be required to fund renewals in subsequent
years where there is a funding gap. If the programs are flexible this surplus may be able to be used in other
categories which have a funding gap. The renewal modelling shows that the funding gap is increasing over the
30 years towards 2049.
Water Supply Asset Management Plan
Orange City Council Page 3
Figure 1-1 identifies the proposed expenditure over the next 10 years, with an increasing backlog at current
levels of funding for all water supply asset categories. The backlog after 30 years is indicative of current levels
of renewal funding. The proposed Capital Works Program is detailed in Appendix C, including work for
Renewals, Upgrades and New Works.
Alternative funding scenarios are discussed in Section 11 – Financial Plan, including funding the renewal gap.
Figure 1-1: What will we spend over the next 10 years?
The current condition of our assets is shown in Figure 1-2 based on the value of each asset in each of 10
conditions ranging from 1 to 10, with 1 being near new and 10 as a completely failed asset.
Figure 1-2: What condition are our assets in?
0
10
20
30
40
50
60
70
2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 2025/26 2026/27 2027/28 2028/29
$ (
Mill
ion
s)
Operations Maintenance Renewal Upgrade / Expansion Rolling Backlog
0
10
20
30
40
50
60
70
80
90
100
1 2 3 4 5 6 7 8 9 10
$ (
Mill
ion
s)
Water Storage Water Reservoirs Water Pump Stations
Water Trunk Mains Water Reticulation Mains Water Treatment Plant
Water Supply Asset Management Plan
Orange City Council Page 4
2 Strategic Objectives
Council operates and maintains the water supply network to achieve the following strategic objectives:
To satisfy community expectations and regulatory requirements at a reasonable cost.
To have sufficient capacity for community growth.
To provide an environmentally and financially sustainable service.
To develop public confidence in the staff and services.
Orange City Council developed a comprehensive community engagement strategy to ensure a broad range of
opinions, ideas and visions were captured to help shape the Orange Community Strategic Plan (CSP). The
outcomes and strategies supported by that plan are detailed in the Strategic Asset Management Plan,
Strategic Business Plan (SBP) and Integrated Water Cycle Management (IWCM) Strategy.
To assist in the delivery of the objectives in this plan, a number of key documents and systems have been
prepared and should be referred to in considering the findings presented in Table 2-1.
Table 2-1: Where can I find additional information?
Document / System Content
Asset Management Manual (AMM) Documents the procedures and processes for the management of assets
Asset Management Strategy (AMS) Overall direction of asset management and portfolio summary
Asset Management System (AIM) Electronic system that contains the asset register, condition ratings and used to model future renewals
Capital Value Register (CVR) Electronic system that stores the financial information of assets
Community Strategic Plan (CSP) Outcomes and Strategies identified by the community
Condition Assessment Manual Details on the process of assessing condition, including photographic examples of various conditions
Council Asset Policy How we manage assets
Development Servicing Plans (DSP) Developer charges applicable to development for water infrastructure
Drinking Water Management System (DWMS)
A risk-based system for drinking water quality management.
Enlighten GIS Geographical information system that produces maps of assets
Enterprise Risk Management (ERM) The identification and management of risks across Council operations
Integrated Water Cycle Management Evaluation Study (IWCM)
Sustainable management strategies for optimal management of all components of the water system (water, sewage and stormwater)
Operation Environmental Management Plan (OEMP)
Approvals and procedures for the operation of the Orange Raw Water Supply System
Water Supply and Sewerage Strategic Business Plan (SBP)
Management of water supply and sewerage business
Water Supply Strategic Policy (ST129)
Outlines Council’s commitment to the supply of Orange with a safe, reliable, quality and secure water supply.
Water Supply Asset Management Plan
Orange City Council Page 5
Figure 2-1 shows the strategic context for water supply services. It demonstrates the link between the NSW
Best Practice Management (BPM) framework for Water Supply & Sewerage and how that integrates with the
NSW Integrated Planning & Reporting (IPR) framework.
Figure 2-1: Strategic Planning Framework for Water Supply & Sewerage
The Orange Community Strategic Plan outcomes supported by this Water Supply Asset Management Plan
include:
Theme: Preserve | Objective 8: Managing our resources wisely
o 8.1: Identify and deliver essential water, waste and sewer infrastructure to service the community
into the future.
o 8.2: Develop and promote initiatives to reduce water, energy and waste in consultation with the
community.
Water Supply Asset Management Plan
Orange City Council Page 6
3 Services Provided
Orange City Council provides reticulated water supply to the City of Orange and the villages of Spring Hill and
Lucknow. Council also provides reticulated water supply to the rural residential estates of Ammerdown and
Clifton Grove.
3.1 Orange Water Supply Scheme
The Orange Water Supply provides drinking water to approximately 19,000 connections including residential,
business and industrial customers. Raw water is collected at Suma Park Dam from surface water runoff from
the traditional catchment and supplementary supples of ground water, water transferred from Macquarie
Pipeline and harvested stormwater.
Raw water is then drawn from Suma Park Dam and treated at Icely Road Water Filtration Plant with a capacity
of 38 ML/day, originally constructed in 1959, and subsequently augmented and upgraded in 1966, 1985 and
2001. Treated water is stored at nine service reservoirs around the City, which is gravity fed through
reticulation mains to customers throughout the City.
Figure 3-1: Orange Water Supply Area
Water Supply Asset Management Plan
Orange City Council Page 7
3.2 Spring Hill and Lucknow Water Supply Scheme
The Spring Hill and Lucknow water supply services approximately 150 connections, joined to the Orange water
supply scheme in 2018 with the commissioning of the Orange to Carcoar pipeline. Potable water is sourced
from the pipeline and pumped into storage tank at Spring Hill, where it is then distributed to the villages.
Figure 3-2: Spring Hill and Lucknow Water Supply Area
Water Supply Asset Management Plan
Orange City Council Page 8
3.3 Non-Potable Water Supply Scheme
Orange City Council also operates a dual water supply system for the Ploughmans Valley and North Orange
(PVNO) development areas, which will ultimately supply non-potable water to 4,500 connections in the north
and west of the City.
Figure 3-3: Non-potable Water Supply Area
Water Supply Asset Management Plan
Orange City Council Page 9
Table 3-1: What is provided? (at 30 June 2019)
Asset Category Dimension/Capacity Fair Value
Water Storage (Dams) 23,629 ML -
Water Reservoirs 82.55 ML -
Water Pumping Stations (inc bores) 75 ML/d -
Water Treatment 38 ML/d -
Water Trunk Mains (inc headworks transfer mains) 168 km -
Water Reticulation Mains 554 km -
TOTAL
337,576,000
The extension of water supply services to new areas is dependent on a range of factors, detailed in the
Integrated Water Cycle Management Strategy, the most important of which relate to our Levels of Service:
Servicing new residential areas with adequate pressure available.
The impact on existing customers and firefighting capacity.
Water security.
Impact on water quality.
Affordable Typical Residential Bill (TRB).
Growth and Demand
In addition to assets constructed by Council, new water supply assets are also acquired from land
developments. In the last 5 years (2013/14 to 2018/19 FY):
Council’s total reticulations mains network has grown by 8.4%, from 511km to 554km (1.7% p.a.); and
The number of residential water assessments has increased 8.5%, from 15,515 to 16,827 (1.7%p.a.).
Acquiring these new assets commits Council to fund the additional operating, maintenance and renewal costs
associated with the assets.
Council has undertaken hydraulic modelling to determine what infrastructure would be required in the next 30
years to service new development and maintain levels of service for existing customers. This analysis was
collected in the “30 Year Infrastructure Strategy”. The projects included in the Infrastructure Strategy are
included in the Capital Works Program for growth.
Opportunities for Non Asset Service Delivery
Council has pursued a number of non-asset service delivery options which are detailed in the Strategic
Business Plan and IWCM. These include Backflow Prevention Policy, Water Loss Management program,
Demand Management Programs (showerhead replacement, rainwater tank rebates, water restrictions and
consumer education on saving water), and energy efficiency programs.
Water Supply Asset Management Plan
Orange City Council Page 10
4 Levels of Service
One of the basic principles of sound asset management practice is to provide the level of service the current
and future community want and are prepared to pay for, in the most cost effective way (NZ NAMS 2007).
Water assets have been categorised into classes to assist in the determination of Levels of Service (LOS) which
are grouped into:
Community LOS – relates to how the community receives the service in terms of safety, quality,
quantity, reliability responsiveness, cost efficiency and legislative compliance; and
Technical LOS – the technical measures of performance developed to ensure the minimum community
levels of service are met.
Table 4-1 outlines what the community desires for each asset Category and how Orange City Council will
deliver it. The Community desires have been determined in line with the Community Strategic Planning and
Strategic Business Plan processes.
Table 4-1: Customer Service Levels
CSP Type of Service (Customer LOS)
Level of Service (Technical LOS)
CUSTOMER ENQUIRIES
5.2, 14.2
Adequate response to complaints/enquiries
Respond to 95% of written complaints/inquiries within 5 working days.
Respond to 95% of verbal complaints/inquiries within 1 working day.
WATER SUPPLY SERVICES
8.1 Water is available to use Peak day demand: 1700 L/tenement/day.
8.1 Adequate pressure is available
Provide pressures between 20 and 80 m head of water in the reticulation system whilst conveying a minimum of 6 litres per minute per residential connection under normal conditions.
8.1 Water is available for fire-fighting
Water will be available from reticulation fire hydrants for fire-fighting at minimum flow rates as set out in Local Government Regulations and the conditions established by the NSW Fire and Rescue.
8.2 Water restrictions are applied in times of drought
‘5/10/10 rule’ o Restrictions not applied more than 5% of the time. o Restrictions not imposed more often than once every 10 years. o Water supply can supply 90% of normal demand (10% reduction in
consumption) through a repeat of the worst drought on record.
8.1 Minimal interruptions to supply
a) Planned interruptions o Customers will receive adequate written notice.
b) Unplanned interruptions o If interruption is less than 4 hours, notice will only be given to those
customers who are put at extreme inconvenience.
WATER QUALITY
8.1 Potable Water Supply Potable water meets the Australian Drinking Water Guidelines.
8.1 Non-Potable Water Supply Non-potable water meets the Australian Recycled Water Guidelines.
Water Supply Asset Management Plan
Orange City Council Page 11
Table 4-2: Response Times
Response Times to Service Interruptions
8.1 Priority 1 Failure to maintain continuity of supply to a large number of customers or a critical user at a critical time.
Typical Causes:
Pump Station Failure
Water Treatment Plant Malfunction
Trunk Main Failure
Typical Effects:
Major property damage
Large volume of wasted water
Personal injury or risk to public health
Significant depletion of service reservoir
Major environmental impact
We will aim to respond within:
30 min (business hours)
1 hour (after hours)
8.1 Priority 2 Failure to maintain continuity or quality of supply to a small number of customers or to a critical user at a non-critical time.
Typical Causes:
Minor main break
Leaking connection
Telemetry failure
Partial valve failure
Typical effects:
Minor property damage
Minor environmental impact
We will aim to respond within:
1 hour (business hours)
1 hour (after hours)
8.1 Priority 3 Failure to maintain continuity or quality of supply to a single customer.
Typical causes:
Leak from water main
Leak from hydrant
Partial failure of service connection
Typical effects:
No water available to customer
We will aim to respond within:
1 hour (business hours)
1 hour (after hours)
Any requirements for further community consultations, particularly for Level of Service changes may cause a
significant impact on costs to deliver the services detailed in this plan. A review of Council’s performance in
delivering the water supply service to the community is included in Section 12 – Performance Measures.
Water Supply Asset Management Plan
Orange City Council Page 12
Table 4-3 provides a brief overview of the legislative framework in which Council operates its water supply
network, and the requirements that the network is required to meet.
Table 4-3: Legislative Requirements
Category Obligation
PRICING
Local Government Act 1993 (and Regulations 2005)
Determining developer charges: o Provide a source of funding for infrastructure required for new urban development o Provide signals regarding costs of urban development and encourage less costly forms
Pricing principles to be adopted by local government authorities for water & sewerage
Guidelines for a ‘user pays’ charging system
ENVIRONMENTAL PROTECTION AND LICENCES
Environmental Planning and Assessment Act 1979
New development areas in the Ploughmans Valley and North Orange (PVNO) area are supplied with dual reticulation to meet BASIX requirements.
Water Management Act 2000
The sustainable and integrated management of State’s water sources, including water rights, licences and allocations. Council holds Town Water Supply licences for the operation of its water sources.
HEALTH AND SAFETY
Work Health & Safety Act 2011 (and Regulation 2017)
Council is required to comply with Work Health and Safety in its sewerage service operations
Public Health Act 2010 Drinking Water Management System to comply with NSW Public Health Act (2010) and Public Health Regulation (2012).
Fluoridation of Public Water Supplies Act 1957
Addition of fluoride in public water supply by water utilities
Dam Safety Act 1978 Obligations and responsibility for local water utilities for the safety of dams under their jurisdiction
Water Supply Asset Management Plan
Orange City Council Page 13
5 Condition of Our Assets
Council maintains a Condition Assessment Manual that details the frequency of inspection and condition
rating to be used for all assets. This data is recorded in the Council Asset Management System and used to
predict the timing of renewal / maintenance requirements in the Long Term Financial Plan.
Assets are rated on a 1 (Near New) to 10 (Completely Failed) scale consistent with the Maloney model and
advanced asset management practices as outlined in the IPWEA International Infrastructure Management
Manual. Details on how Council assesses condition and further information on the rating scale are contained in
the Condition Assessment Manual.
The intent of Council is not to undertake renewal on an asset until it reaches its ‘Intervention Level’, that is the
condition at which the community has determined renewal is required based on the LOS analysis. Typically
assets will be renewed by condition 8.
Asset Deterioration
Deterioration profiles have been developed that track the rate of deterioration expected over time for each
material type in each asset group. This information is used in our models to determine when an asset is
expected to be due for renewal, noting that assets will only be renewed when they reach their intervention
condition, not based on their age.
Figure 5-1 provides examples of several deterioration profiles used with the vertical column showing the years
remaining at a particular condition. For example, an AC main at condition 3 will last 56 years until complete
failure at condition 10.
Figure 5-1: At what rate do we expect our assets to deteriorate?
021426384
105
1 2 3 4 5 6 7 8 9 10
Water Reticulation Mains
PE, PVC, UPVC AC Cast Iron, DICL, Steel
01326395265
1 2 3 4 5 6 7 8 9 10
Mechanical Assets
20 year life 30 year life40 year life 60 year life
09
18273645
1 2 3 4 5 6 7 8 9 10
Electrical Assets
15 year life 20 year life
30 year life 40 year life
061
122183244305
1 2 3 4 5 6 7 8 9 10
Civil Assets
40 year life 80 year life 100 year life
200 year life 300 year life
Water Supply Asset Management Plan
Orange City Council Page 14
Asset Condition Assessment
Using the information from the deterioration profiles and the intervention level set for the class of an asset we
can determine the expected useful lives of our assets as detailed in Table 5-1 below.
Table 5-1: What are our Intervention Levels to Renew an Asset?
Category Component Intervention Level Useful Life
Trunk Mains Water mains – Cementitious (AC) 8 70 years
Water mains – Metallic (CI, DICL) 8 100 years
Water mains – Plastic (UPVC, PE) 8 80 years
Reticulation Mains Water mains – Cementitious (AC) 8 70 years
Water mains – Metallic (CI, DICL) 8 100 years
Water mains – Plastic (UPVC, PE) 8 80 years
Dams Structures 8 20-300 years
Electrical 8 30 years
Mechanical 8 10-40 years
Reservoirs Tank Roof 8 40 years
Tank Structure 8 100 years
Electrical 8 15-40 years
Mechanical 8 5-30 years
Treatment Plants Structures 8 10-80 years
Electrical 8 15-40 years
Mechanical 8 5-30 years
Pump Stations Structures 8 20-80 years
Electrical 8 15-40 years
Mechanical 8 5-60 years
Condition inspections for above ground assets are conducted annually by competent operational staff who
maintain the assets being inspected, with a member of the asset team to determine the condition of the asset
being inspected. The method of condition assessment for underground water supply assets is detailed in the
Condition Assessment Manual and is broken up as follows:
Level 1 assessment – a preliminary condition rating based on the asset age, material and pipe
diameter where no other information is available
Level 2 assessment – utilising operation and maintenance records (e.g. main break information) to
gain an understanding of asset condition. Assets that are identified in a condition close to or exceeding
the intervention level are scheduled for a Level 3 assessment.
Level 3 assessment – formalised condition assessment, e.g. hydrant flow testing. Inspections are
undertaken by competent operational staff who are qualified to conduct hydrant tests.
Water Supply Asset Management Plan
Orange City Council Page 15
Asset Register
The asset register captures the asset data and condition data in a hierarchical structure. The adequacy of the
data and information captured is comprehensive, although is due to be reviewed to ensure the relevance of
the data captured. This includes making sure that data is not captured for data’s sake, and that resources are
available to keep the data up to date. The review of the data is included as an action in Section 13 –
Improvement Plan.
Each asset’s condition is maintained in the Asset Register and Figure 5-2 gives the condition profile based on
the dollar value of assets in each condition.
An overview of the assets that are recorded in the Asset Register is provided in Table 3-1.
Figure 5-2: What Condition are our assets in?
0
20
40
60
80
1 2 3 4 5 6 7 8 9 10
$ (
Mill
ion
s)
Water Storage
0
5
10
15
20
1 2 3 4 5 6 7 8 9 10
$ (
Mill
ion
s)
Water Treatment Plant
0
10
20
30
1 2 3 4 5 6 7 8 9 10
$ (
Mill
ion
s)
Water Trunk Mains
0
5
10
15
20
1 2 3 4 5 6 7 8 9 10
$ (
Mill
ion
s)
Water Reticulation Mains
Water Supply Asset Management Plan
Orange City Council Page 16
6 Operational Plan
The purpose of the Operational Plan is to ensure that service objectives (Levels of Service, statutory &
regulatory requirements and obligations) are achieved at the least cost and that the impact of any breakdowns
or outages is minimised. Operational Performance Indicators are shown in Section 12.
The operations plan is based on knowledge of the system assets and as such, there are ongoing requirements
for maintaining an appropriate asset register and for investigating the condition of key elements of the
systems that affect the ability to deliver the desired level of service. Contingency operations plans (emergency
response plans and business continuity plans) are being developed where the consequence of failure is
significant.
Existing operational systems, processes and procedures routinely deliver services that comply with levels of
service and regulatory requirements. Rapid changes in the operating environment in terms of customer
expectations, improved environmental outcomes, resource conservation, and higher regulatory standards will
require commensurate improvements in operations.
Key operational issues include the following:
Asset condition and monitoring program.
Monitoring of operational performance.
Review and documenting of operating procedures.
Implementation of mains and reservoir cleaning program to maintain water quality as part of ongoing
operations procedures.
Ongoing review of energy usage and reduction opportunities.
Operational activities are those regular activities that are required to continuously provide the service
including asset inspection, electricity costs, plant and overheads. Table 6-1 outlines the split of our operational
costs on an annual basis.
Table 6-1: What are our annual Operational Costs?
Item 30 yr Avg Annual Cost
Administration $ 2,050,000
Engineering $ 1,467,000
General Operations $ 2,981,000
Energy $ 2,091,000
Chemical $ 90,000
Depreciation $ 4,310,000
Interest $ 71,000
Other $ 2,376,000
Total $ 15,436,000
Water Supply Asset Management Plan
Orange City Council Page 17
Figure 6-1: What is the breakup of our Operational Costs?
Routine Operations
Normal operational procedures are documented in Council’s Drinking Water Management System, and include
routines and procedures for water quality testing, telemetry & SCADA systems, periodic operational
inspections and flushing.
Council has also developed a Recycled Water Management System for the procedures in the Dual Water
reticulation network.
Emergency Response
Council has documented response procedures in place in the Drinking Water Management System for a
number of incidents including Boil Water Alerts, disinfection after main break and reporting requirements for
abnormal water quality results, pump breakdowns and main breaks.
Council also has a suite of Dam Safety Emergency Plans for each prescribed Dam under its control. The DSEP
include procedures for inspections, white/amber/red alert levels and contact for response in the community
for each alert level.
Business Continuity
Emergency operational procedures are being developed by Council into a suite of Business Continuity Plans
where service fails at critical facilities. The Water Supply facilities that are being considered under the BCP
process are:
Suma Park Dam (sole direct water supply storage).
Suma Park Pump Station and Rising Main (sole supply to the Icely Rd WTP) .
Administration13%
Engineering10%
General Operations19%
Energy14%
Chemical1%
Depreciation28%
Interest0%
Other15%
Administration
Engineering
General Operations
Energy
Chemical
Depreciation
Interest
Other
Water Supply Asset Management Plan
Orange City Council Page 18
Future Operational Expenditure
Increases to operations and maintenance expenditure occur when new assets are acquired through new works
and developer contributions. These extra costs would be identified at the project stage when undertaking a
life-cycle cost analysis of the asset to be built and included in future operational budgets. For example:
Operation of the Orange to Carcoar Pipeline and expanded Stormwater Harvesting Scheme.
New water pump stations in new development areas.
New reticulation mains in new areas adding to the overall network requiring inspection and flushing.
More water being treated at the Water Treatment Plant, resulting in more chemical use and electricity
use.
Impacts of Demand Management (e.g. water restrictions and pricing strategies).
Impacts of Water Loss Management Programs (reducing water losses and other non-revenue water).
Future operational expenditure is forecast to trend in line with the growth in the water supply network.
Forecast operational expenditure levels are detailed in Section 12 – Financial Plan.
Water Supply Asset Management Plan
Orange City Council Page 19
7 Maintenance Plan
The purpose of the Maintenance Plan is to support the Operation Plan by ensuring that the actual outputs,
reliability and availability of the water systems, facilities and components, as specified in the Operation Plan,
are achieved in the most cost effective manner.
Maintenance is the on-going work that is necessary to keep assets operating to ensure they reach their useful
life. It includes work on an asset where a portion may fail and need immediate repair to make it operational
again. It may be either planned where works are programmed in, cyclic in nature or reactive in response to
storm damage, vandalism etc.
Planned or scheduled maintenance is normally used for critical items where a breakdown would be
costly and would cause large interruptions to service. Scheduled maintenance can be fixed-time
interval or condition-based interval (e.g. every 10,000 pump run hours). These programs should be
documented in a Scheduled Maintenance Plan.
Reactive or breakdown maintenance is generally reserved for less critical assets, or for situations
where scheduled maintenance is not possible. These are usually carried out in response to service
requests.
Maintenance Programs
Current maintenance programs are designed to maintain water assets at their target levels of service and
minimise risk of future failure. Maintenance expenditure levels are considered to be adequate to meet
required service levels.
Future revision of this asset management plan will include linking required maintenance expenditures with
required service levels in the Community Strategic Plan. The level of service and standards of care for
maintenance is carried out in accordance with Council’s Asset Management Policy.
The maintenance programs are detailed in Appendix A, summarised in Table 7-1.
Table 7-1: What are our annual maintenance costs?
Item 30 yr Avg Annual Cost
442 Water Reticulation $ 1,084,000
443 Water Treatment $ 756,000
444 Water Dams $ 96,000
Total $ 1,937,000
Water Supply Asset Management Plan
Orange City Council Page 20
Figure 7-1: What is the breakup of our Maintenance Costs?
Future Maintenance Expenditure
Increases to the operations and maintenance expenditure occur when new assets are acquired through capital
works and developer contributions. These extra costs would be identified at the project stage when
undertaking a life-cycle cost analysis of the asset to be built and included operational budgets. For example:
Maintenance of the Orange to Carcoar Pipeline and expanded Stormwater Harvesting Scheme
Maintenance of new pump stations in new development areas
New reticulation mains in new areas adding to the overall network requiring response when breaks
and leaks occur.
Future maintenance expenditure is forecast to trend in line with the growth in the water supply network.
Forecast maintenance expenditure levels are detailed in Appendix D.
Deferred maintenance, i.e. works that are identified for maintenance and unable to be funded, present a
higher likelihood of failure. This can happen if maintenance budgets do not increase in line with asset growth.
442 Water Reticulation
56%
443 Water Treatment39%
444 Water Dams5%
442 Water Reticulation
443 Water Treatment
444 Water Dams
Water Supply Asset Management Plan
Orange City Council Page 21
8 Capital Renewal Plan
Renewals works are Capital Work on an existing asset to replace or rehabilitate it to a condition that restores
the capability of the asset back to an acceptable level of service. The intervention level and estimated useful
lives are contained in Table 5-1.
Renewal will be undertaken using ‘low-cost’ renewal methods where practical. The aim of ‘low-cost’ renewals
is to restore the service potential or future economic benefits of the asset by renewing the assets at a cost less
than the full replacement cost. For example, pipe bursting existing mains where possible instead of re-laying
mains.
This Asset Management Plan contains an analysis based on broad assumptions and best available knowledge
to date. Modelling is not an exact science so we deal with long term averages across the entire asset stock.
Work will continue on improving the quality of our asset registers and systems to increase the accuracy of our
renewal models.
Details of planned renewal activities proposed over the next four years are contained in Appendix B for each
asset category. The first year of the program will be considered in the development of the next Operational
Program and the remaining three years of work will be assessed each year to confirm that the asset has
reached its intervention level prior to the work being scheduled.
Prioritising Renewals
Assets requiring renewal will be generally identified from estimates of remaining life and condition
assessments obtained from the asset register and models. Candidate proposals will be inspected to verify the
accuracy of the remaining life estimate and to develop a preliminary renewal estimate. Verified proposals are
ranked by priority and available funds and scheduled in future works programs.
Assets were identified for the renewal program based on the following criteria:
Not meeting the level of service (e.g. for fire flow from hydrants).
Poor condition/performance resulting in high risk to leave in service (identified from asset register)
from assets that have a level 2 assessment level
Assets that have been identified in poor condition/performance rating from a level 1 assessment have
been identified to undertake a level 2 assessment (e.g. water mains that have been assessed to be in
poor condition are scheduled to be tested before being included in a renewal program).
Any other specialist evaluation study commissioned by Council (e.g. Dam surveillance Reports,
Treatment Plant Capacity Studies, Pump Station & Reservoir specialist inspections and studies).
A backlog of works (works that have been identified as required, but not able to be funded), may result in
reduced performance e.g. main breaks, fire flow restrictions and water quality issues.
This risk may be acceptable for some assets, but not for others. A criticality assessment has been undertaken
for these assets included in the Water Supply Asset Management Plan. The criticality rating is used to identify
high risk assets and prioritise renewals based on their consequence of failure. Assets that have a low
consequence of failure that are a low risk to remain in service are not included in Special Schedule 7 financial
reports.
Water Supply Asset Management Plan
Orange City Council Page 22
Renewals Expenditure
The costs presented in Table 8-1 identify the current level of funding for the required renewal programs and
the funding required to maintain the asset to what is considered an appropriate standard. The required
funding in that table is based on the intervention specified in Section 5.
For water supply assets, an analysis has been undertaken to determine assets that are already at or above
intervention level that are not able to be funded in the next Operational Plan. This work is quantified in the
‘Backlog’ column.
Negative figures (in red) indicate a surplus in the first year, which will be required in subsequent years or if
programs are flexible may be able to be used in other asset categories which have a funding gap. Overall,
however there is no surplus in renewal funding.
Appendix B details the renewal programs over the next 4 years.
Table 8-1: What are our Renewal Costs, Gap and Backlog (Annual Costs)?
Activity Budget Required Gap Backlog 2019 Backlog 2048
Water Storage 330,000 230,000 -100,000 5,012,000 -2,987,000
Water Treatment Plant 485,000 1,316,000 831,000 -279,000 24,935,000
Water Reservoirs - 762,000 762,000 3,890,000 22,863,000
Water Pump Stations 7,000 781,000 774,000 -139,000 23,234,000
Water Trunk Mains - 1,204,000 1,204,000 5,121,000 36,135,000
Water Reticulation Mains 835,000 1,440,000 605,000 8,916,000 18,158,000
Other 418,000 - - - -
Total 2,074,000 5,735,000 4,078,000 22,520,000 122,338,000
Figure 8-1: What will we spend over the next 10 years on Renewal?
0
5
10
15
20
25
30
2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 2025/26 2026/27 2027/28 2028/29
$ (
Mill
ion
s)
Water Storage Water Treatment Plant Water Reservoirs
Water Pump Stations Water Trunk Mains Water Reticulation Mains
Other Rolling Backlog
Water Supply Asset Management Plan
Orange City Council Page 23
Figure 8-2: Rolling Backlog Split
Lifecycle costs
The lifecycle costs are determined based on the total cost of ownership of each asset including operations,
maintenance, renewal and disposal costs. The thirty year average annualised lifecycle costs for each
component is presented in Table 8-2.
Table 8-2: What are our Lifecycle Costs?
Asset Units Rate Annual Average
Pump Stations & Reservoirs /ML $ 21,937 $ 1,711,099
Reticulation /km $ 7,418,911 $ 7,418,911
Water Treatment /ML $ 1,386,507 $ 1,386,507
Dams /GL $ 171,964 $ 3,955,169
0
5
10
15
20
25
30
2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 2025/26 2026/27 2027/28 2028/29
$ (
Mill
ion
s)
Water Storage Water Treatment Plant Water Reservoirs
Water Pump Stations Water Trunk Mains Water Reticulation Mains
Other Rolling Backlog
Water Supply Asset Management Plan
Orange City Council Page 24
8.1 Intervention Levels – Phase Up/Phase Down
For each asset type, the “intervention level” condition is the condition at which renewal of the asset proposed
to be undertaken. Minimising the life cycle cost and indications of the desired level of service obtained
through community engagement have been considered in setting intervention level conditions.
As an example, the intervention level adopted for trunk mains (condition 7) is higher than the level adopted
for reticulation mains (condition 8) as it is a more critical asset type. Refer to Section 5 - Condition of Our
Assets for more details.
Evaluating “phase up” and “phase down” scenarios provides information on costs or savings and other impacts
to the community based on higher and lower Levels of Service (LOS) options.
A phase up scenario may mean that mains are renewed at condition level 6 for trunk mains and condition 7 for
reticulation mains, and a phase ramp down scenario could be where mains renewed at condition level 8 for
trunk mains and at condition 9 for retic mains.
The average annual renewal costs under each of the scenarios modelled are listed in Table 4.2 below.
Table 8-3: What is the cost of increasing intervention levels by 1 condition point?
Asset Category Scenario 30yr Avg Ann Cost
Base Case Movement
Water Pump Stations Phase Up $ 981,000 $ 781,000 $ 200,000
Water Reservoirs Phase Up $ 935,000 $ 762,000 $ 173,000
Water Reticulation Mains Phase Up $ 1,890,000 $ 1,440,000 $ 450,000
Water Storage Phase Up $ 245,000 $ 230,000 $ 15,000
Water Treatment Plant Phase Up $ 1,756,000 $ 1,316,000 $ 440,000
Water Trunk Mains Phase Up $ 1,238,000 $ 1,204,000 $ 34,000
Table 8-4: What is the cost of decreasing intervention levels by 1 condition point?
Asset Category Scenario 30yr Avg Ann Cost
Base Case Movement
Water Pump Stations Phase Down $ 501,000 $ 781,000 $ -280,000
Water Reservoirs Phase Down $ 750,000 $ 762,000 $ -12,000
Water Reticulation Mains Phase Down $ 1,124,000 $ 1,440,000 $ -316,000
Water Storage Phase Down $ 192,000 $ 230,000 $ -39,000
Water Treatment Plant Phase Down $ 679,000 $ 1,316,000 $ -637,000
Water Trunk Mains Phase Down $ 848,000 $ 1,204,000 $ -356,000
The average annual renewal costs are identified in Table 8.3 and 8.4, however the extra maintenance costs
that would be required because of renewal delay under the phase down option have not been captured. More
sewer chokes, equipment breakdown or other issues could occur due to a decline in the average condition of
the sewerage network.
Water Supply Asset Management Plan
Orange City Council Page 25
9 Capital Upgrade & Expansion Plan
Upgrade and expansion works are those capital works that create a new asset that did not previously exist, or
works which upgrade or improve an existing asset’s capacity.
Upgrades enhance an existing asset to provide a higher level of service, for example improving water pressure
in an area, improving water quality, and improving water security. These works are identified in Appendix C as
Level of Service works. New assets are those created to meet an additional service level requirement or
increase the size of a network, for example, servicing new development areas. These works are identified in
Appendix C as New Works for Growth.
Works for growth may be funded in part through developer contributions in the form of Section 64
contributions, a Voluntary Planning Agreement, or as part of a subdivision development. These works are
identified in the Capital Works Program for ‘Future Growth’. They are usually not eligible for grant funding.
Upgrade works (Level of Service works) need to be funded from within the existing revenue stream of the
Water Fund. Upgrade works may also be eligible for grant funding.
Project Identification and Strategies
New assets and upgrade/expansion of assets are identified from studies completed by Council. These will be
included into Integrated Water Cycle Management (IWCM) Plan scenarios. The current capital works projects
have been identified from the following sources:
Icely Road WTP Pinch Point Analysis 2016
30 year Infrastructure Strategy 2014
IWCM Evaluation Study, May 2013
Water Supply Development Servicing Plan 2004 – currently under review
Council has an adopted strategy for the expansion of the water supply network with the following new /
upgraded assets proposed over the next 30 years to meet demand and levels of service.
Water Supply Asset Management Plan
Orange City Council Page 26
Capital Expenditure
Table 9-1 indicates the major projects and groups of new / upgraded assets proposed, a complete list is
contained in Appendix C.
Table 9-1: What are the major projects proposed over the next 10 years?
Project Reason Year(s) Budget
Spring Creek Dam to Icely Road Pipeline LOS (Drought) 2020/21
5,000,000
Blackmans Swamp Creek Stormwater Harvesting Stage 2
LOS (Drought) 2020/21 5,000,000
Cowra to CTW Pipeline LOS (Drought) 2020/21
7,000,000
Icely Road WTP Land Acquisition/Noise Growth 2020/21
1,100,000
CBD Water Main Realignment/Upgrade LOS 2020/21 – 2021/22
1,050,000
South Orange Water – Stage 2 Growth 2020/21 – 2026/27
5,924,000
Package Advanced Water Recycling Plant (30L/s)
LOS (Drought) 2022/23 5,578,000
Smart Water Metering City-Wide LOS 2024/25
4,000,000
Figure 9-1: What will we spend over the next 10 years on Upgraded or New Assets?
0
2
4
6
8
10
12
14
16
18
20
2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 2025/26 2026/27 2027/28 2028/29
$ (
Mill
ion
s)
441 Water Administration 442 Water Reticulation 443 Water Treatment
444 Water Storage 449 Emergency Water Projects
Water Supply Asset Management Plan
Orange City Council Page 27
10 Asset Rationalisation and Disposal Plan
Disposal is any activity associated with disposal of a decommissioned asset including sale, demolition or
relocation. Assets with a condition rating of 9 (poor condition), where Council has received no contact through
the Customer Request System indicating that the community do not require the asset (as they have not raised
concerns or complaints about the asset condition) may be considered to be a redundant asset or not utilised
and therefore decommissioned and disposed unless it is considered critical infrastructure.
Table 10-1: What assets are we planning to dispose of?
Asset Reason Year Cost
Spring Creek Dam Rising Main
Asset is no longer required 2020/21
(part of Spring Creek – Icely
Pipeline)
Lake Canobolas Trunk Main
Asset is no longer required (is being replaced with a reticulation main)
2020/21
(part of Lake Canobolas Water
Reticulation Upgrade)
Cargo Road Reservoir
Storage available in this reservoir adversely impacts levels of service for Water Quality (long retention time for small demand)
Exceeds serviceable life (not able to be used to full capacity)
Asset is not required to deliver pressure out to Lake Canobolas (reticulation changes required to connect Ploughmans Pump Station to this area)
Asset is located on a land that might be able to be sold for development should the pump station be fully decommissioned.
2020/21 (part of Lake Canobolas Water
Reticulation Upgrade)
Coronation Drive Pump Station
Asset currently non-operational & is not required for the successful operation of water network
Use of asset causes pressure fluctuations for customer connections – does not meet levels of service
Original purpose of asset was to supply Cargo Road reservoir, which is to be decommissioned.
UNSCHEDULED 50,000
Spring Creek Filtration Plant
Asset is currently non-operational
Asset is no longer required
UNSCHEDULED TBC
Water Supply Asset Management Plan
Orange City Council Page 28
11 Financial Plan
This financial plan is based on Orange City Council’s financial statements from 2017/18 (Special Schedule 3 and
4), which are a key component of Council’s strategic business plans for water supply and sewerage.
A 30-year financial plan has been prepared for Council’s Water Supply business. The NSW Financial Planning
Model (FINMOD) has been used for preparing this Financial Plan.
This Financial Plan sets out the long term price path (Typical Residential Bills) Council will need to levy in order
to fund the recurrent cost and capital investment required for delivering the levels of service set out in this
Asset Management Plan.
A summary of the expenditure projected over the next 30 years is included in Appendix D. Funding for
management of assets can come from a variety of sources as detailed in the table below.
Table 11-1: Where does our Income come from?
Item 30yr Avg Annual Income
Fees & Charges 15,894,000
Interest 2,094,000
Other 1,022,000
Grants 569,000
Contributions 2,417,000
Total 21,998,000
Figure 11-1: What is the breakup of our income streams?
Fees & Charges-72%
Interest-11%
Other-5%
Grants-3%
Contributions-11%
Fees & Charges
Interest
Other
Grants
Contributions
Water Supply Asset Management Plan
Orange City Council Page 29
11.1 Summary of Model Inputs
Historical Financial Data
Historical financial data was obtained from Special Schedules 3 & 4 of Council’s 2017/18 annual financial
statements.
Initial Data
Data used in the modelling is shown in Table 11-2. The values are those recommended by Orange City
Council’s Finance Department.
Table 11-2: Initial Data
Parameter Value
Inflation Rate 2.5%
Borrowing Interest Rate 3.0%
Deposit Interest Rate 1.75%
Term of new loans modelled 10
Average life of new system assets 70
Assessments and Growth Projections
The figures used for the existing number of assessments and the projected growth are given in Table 11-3.
Table 11-3: Water Assessments
Item Existing Assessments (June 2019)
Growth Projection
Residential Assessments 16827 0.9%
Non-Residential Assessments 1418 0.9%
Typical Developer Charges
Developer charges, together with the annual charges, are Council’s two sustainable sources of income. In
order to project the annual charges, the income from developer charges needs to be estimated.
For assessing the developer charges for new development, it was assumed that each new residential
assessment will be 1 ET (Equivalent Tenement) and on average, each non-residential assessment will also be 1
ET.
Table 11-4: Water Developer Charges per Assessment
Item Developer Charge
Residential development 8057
Non-Residential Development 8057
Water Supply Asset Management Plan
Orange City Council Page 30
Operation, Maintenance and Administration Costs
As a default, FINMOD assumes no change in the real operation, maintenance and administration (OMA) costs
per assessment, and increases the total annual OMA expenditure in line with growth. These costs are adjusted
annually for inflation.
Table 11-5: Additional OMA costs to the water fund
Item Additional OMA costs to Water Fund
Operation Expenses
Managed Aquifer Recharge Trial $ 196k p.a. from 2024/25 – 2028/29
Orange to Carcoar Pipeline operational costs $ 17k p.a. from 2019/20
Stormwater Harvesting operational costs $ 100k p.a. from 2019/20
Energy Costs
Macquarie Pipeline energy costs – full utilisation $ 530k p.a. from 2019/20
Stormwater Harvesting energy costs – full utilisation $ 125k p.a. from 2019/20
Chemical Costs
Stormwater Harvesting chemical costs (alchlor) $ 95k p.a. from 2019/20
Other Expenses
Environmental Flows – 5 year licence monitoring $ 10k every 5 years from 2020/21
Non-Residential Income
One of the inputs to FINMOD is the proportion of income from annual charges that will be provided from
residential customers. This input variable has a significant impact on the outcomes, as typical residential bills
are affected by the contribution of non-residential customers to the total income from annual charges.
For the water supply scheme, the historical split between residential and non-residential customers has been
assumed to continue for the next 30 years.
Table 11-6: Water Income Split
Item Service Availability Charges User Charges Total
Residential Assessments 25.56 % 50.67 % 76.23 %
Non-Residential Assessments 7.80 % 15.97 % 23.77 %
Total 33.36 % 66.64 % 100 %
Water Supply Asset Management Plan
Orange City Council Page 31
Capital Works Program
The water supply business is highly capital-intensive, with capital costs representing about 70% of the cost of
providing water supply service.
Council’s capital works program is divided into three categories:
New Assets for improved standards (e.g. improvements to the drinking water quality).
New Assets for growth.
Renewals – replacement of assets that have reached the end of their useful life.
The 30 Year Capital Works Program is included in Appendix C. A summary is shown in Table 11-7
Table 11-7: 30 Year Water Capital Works Program
Category 30 Year Total Capital Works
New Assets for Improved Standards $ 47,322,000
New Assets for growth $ 30,212,000
Renewals $ 66,449,000
Total $ 143,983,000
Water Supply Asset Management Plan
Orange City Council Page 32
11.2 Water Fund Model Results
The main output parameter of this financial plan is the Typical Residential Bill (TRB) in current (2019/20 $)
dollars over the next 30 years. The TRB is the annual bill paid by a non-pensioner resident1, using the average
annual residential water supplied.
The purpose of the financial modelling is to identify the lowest TRB that will enable Council to fund the
operation, maintenance and development of the water supply system. The TRB is a measure of affordability,
and sets the price path Council needs to set in order to meet the proposed levels of service.
It is important to note that the financial outcomes (e.g. TRB, cash and investments) are shown in 2019/20
dollars. CPI adjustments are required annually.
Financial Data
The Water Supply Fund at 30 June 2019 had cash and investments totalling $53,419,000 and borrowings of
$9,988,000. According to Council’s loan repayment schedule, the existing loans will be repaid over the next 20
years.
The minimum Cash and Investments modelled has been kept above approximately 10% of business income in
the first few years, or $6,500,000.
Capital Works and Growth
The capital works and growth projections are shown graphically in Figure 11-2
Figure 11-2: Water Supply Capital Works and Growth
1 Pensioners receive a $87.50 pensioner rebate for each of water supply and sewerage
Water Supply Asset Management Plan
Orange City Council Page 33
Typical Residential Bill
The water supply TRB in 2019/20 was calculated as shown in Table 11-8, using Councils 2019/20 Fees and
Charges.
The TRB is less than in previous years as the average residential water usage has decreased due to increasing
water restrictions.
Table 11-8: Water Supply TRB Calculation
Item Charge 2019/20
Access Charge ($/assessment) 269
Usage Charge ($/kL) (164kL/a @ $2.45/kL) 402
TOTAL TRB 671
Over the next 4 years, this represents a Typical Residential Bill of (adjusted annually for CPI of 2.5%):
2020/21 - $688
2021/22 - $705
2022/23 - $723
2023/24 - $741
Results Summary & Recommendations
The results are summarised in Figure 11-3. The main output parameters shown in the figure are (all in 2020/21
dollars):
Typical Residential Bill:
The modelling indicates that the current TRB is sufficient to fund the operation and development of the
water supply network identified in the Capital Works Program (Appendix C), without the need for
borrowing.
There is provision to reduce the current TRB – refer to the sensitivity analysis for the minimum TRB
required for each scenario.
Cash and Investments:
The cash grows over the modelled years. It accumulated in periods when capital investment is low, and
then the reserves are reduced as money is invested in new assets and renewals, but is overall increasing
towards 2049.
Borrowings:
Loans are required when accumulated cash and investments are insufficient to fund capital works. The
base case includes all new works are funded through accumulated cash and investments, and no
borrowing is used.
Water Supply Asset Management Plan
Orange City Council Page 34
Figure 11-3: Water Fund Base Case Results (2020/21 $)
Water Supply Asset Management Plan
Orange City Council Page 35
Water Fund Model Sensitivity Analysis
A sensitivity analysis was carried out in order to assess the sensitivity of results to the input parameters. The
results of the sensitivity analysis are shown in Table 11-9. Three additional cases were modelled, as described
below:
Minimum Required TRB: The TRB was reduced until the minimum Cash and Investments in over the 30
Year model was at $6.5M. The following scenarios also used this threshold to calculate the TRB.
Slow growth: The growth projections were modified from the figures in Table 11-3, to a growth rate of
0.5% p.a. over the 30 year planning period.
Fully funding the renewal gap: the capital works program was increased to fully fund the renewal gap
identified in Section 8 through accumulated surpluses.
The Cash & Investments at year 30 was modelled to be the same as current 2019 levels ($46 million).
Table 11-9: Water Fund Sensitivity Analysis
Scenario Assessment Growth Rate
Total Capital Works
C&I Final Year ($M)
TRB 2020$
BASE CASE Status Quo (Existing TRB)
0.9 143,983,000 154 671
1. Status Quo (Minimum TRB)
0.9 143,983,000 32 471
2. No net decrease in Cash and Investments
0.9 143,983,000 56 511
3. Slow growth (Minimum TRB)
0.5 143,983,000 28 511
4. No Renewal Gap (Minimum TRB)
0.9 266,756,000 50 632
The sensitivity analysis indicates that the TRB for water is highly sensitive to maintaining the reserves of Cash
& Investments at current levels and slow growth, which shows the highest TRB, and increasing the total Capital
Works Program, which shows the next highest TRB.
The sensitivity analysis also indicates that the lowest TRB is found in Case 1, where the renewal program is
kept at current funding levels (and the renewal gap as demonstrated in Section 8 exists), and the reserves are
used to fund the capital works program.
All scenarios show that the TRB in each scenario is less than the current TRB of $671 (2019/20).
The following figures show a comparison of cases.
Water Supply Asset Management Plan
Orange City Council Page 36
Figure 11-4: Water Fund Sensitivity Analysis – TRB
Water Supply Asset Management Plan
Orange City Council Page 37
Figure 11-5: Water Fund Sensitivity Analysis – Cash and Investments
Figure 11-6: Water Fund Sensitivity Analysis – Borrowing
Water Supply Asset Management Plan
Orange City Council Page 38
12 Key Performance Measures
Department of Industry (Water) publishes the NSW Benchmarking Report in May each year for the previous
financial year. Orange City Council’s performance as a water utility is also reported via the Triple Bottom Line
(TBL) report each year. The 2018/19 Report is due to be published in May 2020. Table 12-1Error! Reference
source not found. shows a summary of the performance indicators included in the annual TBL Report.
Those areas where current performance has not met target performance are addressed in the Water and
Sewer Annual Report.
Table 12-1: How did we perform in 2018/19?
Category Key Performance Measure 2017/ 2018
2018/ 2019
Target 2 National Average3
Pricing Typical Residential Bill $/assessment 692 - ●
Residential Water Usage Charge
c/kL 234 - ●
Revenue from Usage Charges % 63 >75 ●
Finance Operating Cost per property $/property 412 - ●
Economic Real Rate of Return Ratio 3.1 - ●
Customer Average Duration of interruptions
mins 135 <240 ●
Water Service Complaints4 /1000 properties 69 <30 ●
Water Quality Complaints /1000 properties 2.2 <1 ●
Asset Water Main Breaks /100km main 8.1 <2 ●
Water Losses L/connection/day 102 <80 ●
Environment Residential Water Supplied kL/property 186 - ●
Net greenhouse gas emissions
t CO2 /1000 properties
243 <350 ●
Health Water Quality Compliance – Microbiological (E.Coli)
% 100 100 ●
Water Quality Compliance – Physical
% 100 100 ●
Water Quality Compliance – Chemical
% 100 100 ●
2 Traffic light indicators to highlight performance
3 BOM National Performance Report 2017/18 – Small Utilities - http://www.bom.gov.au/water/npr/
4 OCC data includes service requests in addition to complaints
Water Supply Asset Management Plan
Orange City Council Page 39
13 Risk Management Plan
Council is committed to the identification and elimination or reduction of risks associated with hazards that
arise throughout Council operations as far as reasonably practicable. To facilitate this process an Enterprise
Risk Management Plan has been developed which includes the management of risks for each of its assets.
From this Plan the key Risks have been identified in Table 13-1.
Table 13-1: Critical Risks and Treatment Plans
Asset at Risk What can Happen Risk Rating
Risk Treatment Plan
Suma Park Dam Pump Station & Icely Road Treatment Plant
Mechanical Failure Impacting Supply
Severe Pump Maintenance Program
Water Treatment Maintenance Programs
Treatment Plant, Reservoirs, Pump Stations
Mechanical/Electrical failure affecting water quality
Severe Water Quality Management System
Reservoir Maintenance Program
Pump Station Maintenance Program
Reticulation Unaccounted for water loss – slow metering/leaks/theft
Severe Meter replacement program
Water Loss Management Program
Suma Park Dam Raw Water Main Pipeline failure affecting supply
Major Dial before you dig Program
Spare fittings kept in stock
Emergency Plan (EMPlan)
Trunk Mains Pipeline failure affecting supply
Moderate Dial before you dig Program
GIS mapping
Condition Assessment
Dams Major Dam Failure Major EMPlan
Dam Safety Emergency Plan
Suma Park Dam Upgrade Project
All Assets Ageing asset failure impacting ability to provide services
Moderate Undertake Criticality Assessment
Asset Inspections
One of the outcomes of this assessment is the determination of Critical Assets. Critical Assets are specific
assets which have a high consequence of failure but not necessarily a high likelihood of failure. By identifying
critical assets and critical failure modes, Council can appropriately target and refine inspection regimes,
maintenance plans and capital expenditure plans.
Water Supply Asset Management Plan
Orange City Council Page 40
Operations and maintenance activities may also be targeted to mitigate critical assets failure and maintain
service levels. These activities may include increased inspection frequency, higher maintenance intervention
levels, etc.
Reservoirs where there is a potential for failure to risk public safety, public health or property have been
identified as critical, as has the Water Treatment Plant, raw water supply system assets, and pump stations
with critical customers.
Table 13-2: Critical Assets
Critical Assets Critical Failure Mode Treatment Plan
Icely Road Water Treatment Plant
Mechanical/Electrical Assets:
Reduced flow output
Excessive or unusual vibration
Excessive or unusual noise
Excessive or unusual temperature increase
Leakage from seals
External corrosion
Oil or grease leaks
Business Continuity Plan – Icely Road WTP
Drinking Water Management System
Suma Park Dam Rapid change in seepage
Overtopping of earth embankment
Excessive beaching
Excessive embankment erosion
Spillway erosion or blockage
Excessive cracking or displacement
Sliding, rotation or settlement of the dam
Malfunction of gates or crest bags
Dam Safety Emergency Plan – Suma Park Dam
Suma Park Pump Station Reduced flow output
Excessive or unusual vibration
Excessive or unusual noise
Excessive or unusual temperature increase
Leakage from seals
External corrosion
Oil or grease leaks
Business Continuity Plan – Suma Park Pump Station
Suma Park Rising Main Corrosion
Joint leakage
Biofilms
Fracture
Longitudinal split
Circumferential break
Leaching of lime and calcium silicate hydrates
Business Continuity Plan – Suma Park Pump Station
Water Supply Asset Management Plan
Orange City Council Page 41
Critical Assets Critical Failure Mode Treatment Plan
Icely 20ML Reservoir Anson 20ML Reservoir Anson 9ML NP Reservoir Beech Cres 9ML Reservoir Lucknow Reservoir Spring Hill Reservoirs
Undermining or erosion of base
Spalling, cracking or fracturing
Movement
Defects in lining
Corrosion
Leaks from joint seals
Leaks in underdrains
Deterioration of roof protective coating
Corrosion or rotting of roof structural members
Roof cracking or fracturing
Corrosion of roof joints, bolts and fixings
Corrosion to roof sheeting
Holes in roof sheeting from corrosion
Damage to vermin protection/screens
Drinking Water Management System
Hospital Pump Station Reduced flow output
Excessive or unusual vibration
Excessive or unusual noise
Excessive or unusual temperature increase
Leakage from seals
External corrosion
Oil or grease leaks
Back-up generator
Priority Agreement with power supplier.
Water Supply Asset Management Plan
Orange City Council Page 42
14 Performance Review and Proposed Improvement Plan
Achievements
The following actions have been completed since the development of the last Water Supply Asset
Management Plan:
Annual budgets have been updated
Complete condition rating of all above-ground assets
Asset data hierarchy reviewed
Risk Assessment completed for Water Supply through Enterprise Risk Management System
Business Continuity Plans developed for all dams
Review of Customer Request Management system reporting categories for Water & Sewer
Improvement Plan
Asset Management improvements pertaining to the asset management system, or Council’s approach to asset
management, are identified in the Asset Management Strategy. The improvements in Table 14-1 are
specifically to improve the asset management of the water supply network only.
Table 14-1: Improvement Plan
Action Responsibility Target Progress
Implement Maintenance Scheduling Work Orders System
AE, WE, WTS December 2016
ON HOLD – to be implemented with AMG Working Group
Analyse Operation and Maintenance Plan for optimisation
AE, WE FY2020 In progress
Develop a Water Loss Management Plan
AE, WE FY2020 In progress – reservoir zoning project
Review CRM Categories CS FY2020 In progress
Water Supply Asset Management Plan
Orange City Council Page 43
Appendix A: Operation & Maintenance Programs
442 Water Reticulation
Headworks Distribution
Reoccurrence per year Task
Nu
mb
er
Mac
qu
arie
Pip
elin
e
Sto
rmw
ater
Har
vest
ing
Clif
ton
Gro
ve B
ore
s
Sho
wgr
ou
nd
Bo
res
Ora
nge
Ret
ic
Spri
ng
Hill
Ret
ic
PV
NO
Ret
ic
Activity Type
z20
26
4
z21
56
8
z43
4
z43
4
- - -
OPERATIONS
Water Meter Reading Planned – Frequency based - - - - 4 4 4
MAINTENANCE
Air Valve Inspections Planned – Compliance based - 1
PRV Servicing Planned – Frequency based - 1
Hydrant Maintenance Planned – Frequency based .0024 1/5 1/5 1/5
Valve Maintenance Planned – Frequency based .0024 1/5 1/5 1/5
Mains Flushing Planned – Frequency based .0617 2
Pressure/Flow Testing Planned – As requested .0619 1 1 1
Mains M&R Unplanned – locate fault & repair .0024 1 1 1 1 1 1 1
Service M&R Unplanned – locate fault & repair .0024 1 1 1
Meter M&R Unplanned – locate fault & repair .0024 1 1 1
Water Supply Asset Management Plan
Orange City Council Page 44
444 Water Supply Dams
Dams
Reoccurrence per year Task
Nu
mb
er
Sum
a P
ark
Dam
Spri
ng
Cre
ek D
am
Go
slin
g C
reek
Dam
Lake
Can
ob
ola
s D
am
Sto
rmw
ater
Ho
ldin
g P
on
d
Activity Type
z44
8
z44
4
z44
9
- -
OPERATIONS
Dam Surveillance Planned – Compliance based .0455 156 156 156 156 -
Dam Inspections Planned – Compliance based .0455 1 1 1 1 1
Dam Safety Audits Planned – Compliance based .0455 1/5 1/5 1/5 1/5 1/5
MAINTENANCE
No programs
Water Supply Asset Management Plan
Orange City Council Page 45
443 Water Treatment
Treatment Headworks Clearwater Reservoirs Distribution Pump Stations
Reoccurrence per year Task
Nu
mb
er
Icel
y R
oad
WTP
Spri
ng
Cre
ek F
ilter
Spri
ng
Hill
Bo
re
Spri
ng
Cre
ek P
S
Sum
a P
ark
PS
Mac
qu
arie
Pip
elin
e
Sto
rmw
ater
Har
vest
ing
Clif
ton
Gro
ve B
ore
s
Sho
wgr
ou
nd
Bo
res
An
son
20
ML
Res
ervo
ir
An
son
9M
L R
ese
rvo
ir
Bee
ch C
res
Re
serv
oir
Car
go R
d R
ese
rvo
ir
Cla
ncy
Res
ervo
irs
Icel
y 2
0M
L R
eser
voir
Icel
y 9
ML
Re
serv
oir
Iro
nb
ark
Res
ervo
irs
Luck
no
w R
eser
voir
Mar
on
oa
Res
erv
oir
s
Shar
ps
Rd
Res
ervo
ir
Spri
ng
Cre
ek R
ese
rvo
ir
Spri
ng
Hill
Re
serv
oir
s
An
son
PS
Bee
ch C
res
PS
Co
ron
atio
n D
r P
S
Dis
cove
ry H
ill P
S
Ho
spit
al P
S
Iro
nb
ark
PS
Mar
on
oa
PS
No
rth
Ora
nge
PS
Plo
ugh
man
s P
S
Spri
ng
Hill
PS
Activity Type
z43
0
z43
9
z43
5
z43
9
z43
3
z20
26
4
z21
56
8
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
5
z43
4
z43
4
z43
4
z43
5
z43
4
z43
4
z43
4
z43
4
z10
54
6
z43
4
z44
2
z10
54
5
z43
4
z43
4
OPERATIONS
Monitoring – Hydrology Planned – Compliance based .0603 52 52 52 52 52
Monitoring – Aquatic Environment
Planned – Compliance based .0603 12 12
Monitoring – Groundwater Planned – Compliance based .0603 52 52
Sampling Planned – Compliance based .0871 52 52 52 12 12
Operations Planned – Frequency based .0622 365 12 52 12 52 12 12 52 52 52 52 52 52 52 52 52 52 52 - 52 52 52 - 52 52 - 52 52 52 52
Reservoir Integrity Inspections Planned – Compliance based .0628 12 12 12 12 12 12 12 12 12 12 12 - 12
Ozone Operations Planned – Frequency based .0639 52
Electrical Testing and Tagging Planned – Frequency based .0626 1 1 1 1 1 1 1 1 1 1 - 1 1 - 1 1 1 1
MAINTENANCE
Cleaning – Reservoirs Planned – Frequency based .0258 1/5 1/5 1/3 1/5 1/5 1/8 1/8 1/5 1/8 1/5 1/5 1/5 1/8
Instrument Calibration Planned – Frequency based .0626 1
Flowmeter Calibration Planned – Frequency based .0626 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - 1 1 - 1 1 1 1
Servicing – Control Valves Planned – Frequency based - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Servicing – Cathodic Protection Planned – Frequency based .0626 1/2 1/2 1/2
Servicing – Pumps Planned – Frequency based .0628 1 1 1 1 1 1 1 1
Electrical Repair Unplanned – locate fault & repair
.0626 1 1 1 1 1 1 1 1 1 1 - 1 1 - 1 1 1 1
Mechanical Repair Unplanned – locate fault & repair
.0628 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Valve & Pipework Repair Unplanned – locate fault & repair
.0627 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Cleaning – Lagoons Planned – Frequency based .0623 1/2 1/2
Cleaning – Sedimentation Basins Planned – Frequency based .0622 1
Filter Media Replacement Planned – Frequency based .0635 0.1
Servicing – Compressors Planned – Frequency based .0629 1 1 1
Servicing – Blowers Planned – Frequency based .0639 1
Water Supply Asset Management Plan
Orange City Council Page 46
Treatment Headworks Clearwater Reservoirs Distribution Pump Stations
Reoccurrence per year Task
Nu
mb
er
Icel
y R
oad
WTP
Spri
ng
Cre
ek F
ilter
Spri
ng
Hill
Bo
re
Spri
ng
Cre
ek P
S
Sum
a P
ark
PS
Mac
qu
arie
Pip
elin
e
Sto
rmw
ater
Har
vest
ing
Clif
ton
Gro
ve B
ore
s
Sho
wgr
ou
nd
Bo
res
An
son
20
ML
Res
ervo
ir
An
son
9M
L R
ese
rvo
ir
Bee
ch C
res
Re
serv
oir
Car
go R
d R
ese
rvo
ir
Cla
ncy
Res
ervo
irs
Icel
y 2
0M
L R
eser
voir
Icel
y 9
ML
Re
serv
oir
Iro
nb
ark
Res
ervo
irs
Luck
no
w R
eser
voir
Mar
on
oa
Res
erv
oir
s
Shar
ps
Rd
Res
ervo
ir
Spri
ng
Cre
ek R
ese
rvo
ir
Spri
ng
Hill
Re
serv
oir
s
An
son
PS
Bee
ch C
res
PS
Co
ron
atio
n D
r P
S
Dis
cove
ry H
ill P
S
Ho
spit
al P
S
Iro
nb
ark
PS
Mar
on
oa
PS
No
rth
Ora
nge
PS
Plo
ugh
man
s P
S
Spri
ng
Hill
PS
Activity Type
z43
0
z43
9
z43
5
z43
9
z43
3
z20
26
4
z21
56
8
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
4
z43
5
z43
4
z43
4
z43
4
z43
5
z43
4
z43
4
z43
4
z43
4
z10
54
6
z43
4
z44
2
z10
54
5
z43
4
z43
4
Servicing – Chlorination Equipment
Planned – Frequency based .0632 1 1 1
Servicing – Generators Planned – Frequency based .0639 1
Servicing – Mixers Planned – Frequency based - 2
Servicing – Ozone Generators Planned – Frequency based .0639 1
Servicing – Scrapers Planned – Frequency based .0628 1
Water Supply Asset Management Plan
Orange City Council Page 47
Appendix B: Four Year Renewal Programs
The following programs are based on best available information with the first year of works expected to be
delivered within budgetary constraints. The following years will be validated each year with a review of the
condition so that assets are only renewed at the intervention level. Works that cannot be funded within the
four years but which are expected to be due based on modelling are grouped as ‘unfunded works’.
443 Water Treatment – Water Reservoirs
Facility Asset Renewal Year Renewal Cost
WR1002 – Anson Rd 20ML Concrete Reservoir UNSCHEDULED $ 2,769,228
WR1008 – Icely Road Backwash Mechanical UNSCHEDULED $ 136,783
WR1008 – Icely Road Backwash Electrical UNSCHEDULED $ 91,189
TOTAL UNSCHEDULED $ 2,997,200
443 Water Treatment – Water Pump Stations
Facility Asset Renewal Year Renewal Cost
Water Supply Bores Mechanical - Airport Bore Unscheduled $ 10,215
Water Pump Stations Civil - Airport PS Unscheduled $ 19,685
Water Supply Bores Mechanical - Shearing Shed Bore Unscheduled $ 113,444
Water Pump Stations Mechanical - Coronation Drive PS Unscheduled $ 142,049
TOTAL UNSCHEDULED $285,717
443 Water Treatment – Water Treatment Plant
Process Unit Asset Renewal Year Renewal Cost
Ozonation Gas Detector - Ozone Leak 2020 10,800
Ozonation Analyzer - Ozone 2020 60,480
TOTAL 2020 $71,280
Chemical Dosing (Fluoride) Batching Tank - Fluoride Room 2021 $ 3,780
Chemical Dosing (Fluoride) Feeder & Hopper - Fluoride Room 2021 $ 22,680
TOTAL 2021 $ 26,460
Nil
TOTAL 2022 $
Nil
TOTAL 2023 $
Water Supply Asset Management Plan
Orange City Council Page 48
444 Water Storages Dams – Dam Structures
Facility Asset Renewal Year Renewal Cost
Nil
TOTAL 2020 $
Nil
TOTAL 2021 $
Gosling Creek Dam Concrete Dam Wall 2022 $ 4,765,824
Gosling Creek Dam Outlet Works 2022 $ 126,360
Gosling Creek Dam Outlet Works 600mm 2022 $ 7,722
Gosling Creek Dam Floating Trunnion 1 300mm 2022 $ 56,160
Gosling Creek Dam Floating Trunnion 2 450mm 2022 $ 56,160
TOTAL 2022 $5,012,226
Nil
TOTAL 2023 $
Water Supply Asset Management Plan
Orange City Council Page 49
442 Water Reticulation – Water Trunk Mains
Water Supply Asset Management Plan
Orange City Council Page 50
442 Water Reticulation – Water Reticulation Mains
Water Supply Asset Management Plan
Orange City Council Page 51
Appendix C: 30 Year Capital Works Program
$’000
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
PROJECT DESCRIPTION
20
18
/1
9
20
19
/2
0
20
20
/2
1
20
21
/2
2
20
22
/2
3
20
23
/2
4
20
24
/2
5
20
25
/2
6
20
26
/2
7
20
27
/2
8
20
28
/2
9
20
29
/3
0
20
30
/3
1
20
31
/3
2
20
32
/3
3
20
33
/3
4
20
34
/3
5
20
35
/3
6
20
36
/3
7
20
37
/3
8
20
38
/3
9
20
39
/4
0
20
40
/4
1
20
41
/4
2
20
42
/4
3
20
43
/4
4
20
44
/4
5
20
45
/4
6
20
46
/4
7
20
47
/4
8
CAPITAL WORKS PROGRAM
Total New Assets for Improved Standards 100% 1,790 17,640
150 6,038 483 4,010 1,901 10 40 10 10 10 10 10 10 10 10 10 15,060
10 10 10 10 10 10 10 10 10 10 10
Total New System Assets for Growth 100% 410 2,080 510 3,020 330 330 330 3,818 3,908 2,830 330 420 330 1,091 330 420 330 4,850 645 420 330 330 330 420 330 330 330 420 330 330
Total Renewals 100% 1,478 2,732 2,337 6,038 1,842 4,245 1,449 5,983 5,858 3,960 1,464 1,469 1,504 1,479 1,485 1,490 1,496 1,532 1,508 1,514 1,520 1,527 1,564 1,541 1,548 1,556 1,563 1,601 1,579 1,588
TOTAL CAPITAL WORKS 3,678 22,452
2,997 15,096
2,655 8,585 3,680 9,811 9,806 6,800 1,804 1,899 1,844 2,580 1,825 1,920 1,836 6,392 17,213
1,944 1,860 1,867 1,904 1,971 1,888 1,896 1,903 2,031 1,919 1,928
441 WATER ADMINISTRATION
Water & Sewer Network Management System 100% 50
Telemetry & SCADA Upgrade Strategy 100% 100
Water & Sewer Revaluation (50% Water Fund) 100% 0 0 30 0 0 0 0 30 0 0 0 0 30 0 0 0 0 30 0 0 0 0 30 0 0 0 0 30 0 0
Water Model Update (inc pressure & flow monitoring)
100% 0 0 0 90 0 0 0 90 0 0 0 90 0 0 0 90 0 0 0 90 0 0 0 90 0 0 0 90 0 0
Smart Water Metering Implementation city-wide 100% 0 0 0 0 0 4,000
TOTAL 441 WATER ADMINISTRATION 150 0 30 90 0 4,000 0 120 0 0 0 90 30 0 0 90 0 30 0 90 0 0 30 90 0 0 0 120 0 0
442 WATER RETICULATION
Water Service Renewals 100% 128 132 135 138 142 145 149 153 157 160 164 169 174 179 185 190 196 202 208 214 220 227 234 241 248 256 263 271 279 288
New Water Services 100% 60 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
Water Meter Replacements 100% 200 300 300 300 300 300 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200
Water Main Extensions/realignments 100% 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300
Water Main Renewals 100% 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800
CBD Upgrade Water Main Realignment 100% 0 300 750
South Orange Stage 2 - Water 100% 0 100 0 2,600 0 0 0 3,224
Burrendong Way Water Main Augmentation 100% 0 0 0 0 0 0 0 174
Bloomfield Development Strategy 100% 0 50
Smart Water Metering 100% 150 150
South Orange Stage 3 100% 0 0 0 0 0 0 0 0 0 0 0 0 0 761
North Orange Ring Main 100% 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 315
TOTAL 442 WATER RETICULATION 1,638 2,162 2,315 4,168 1,572 1,575 1,479 4,881 5,000 1,490 1,494 1,499 1,504 2,270 1,515 1,520 1,526 1,532 1,853 1,544 1,550 1,557 1,564 1,571 1,578 1,586 1,593 1,601 1,609 1,618
443 WATER TREATMENT
Water Treatment Renewals 100% 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300
Rebuild Scrapers 100% 50
Water Reticulation System - Chlorine Dosing 100% 30 30
Icely Road WTP Land Acquisition / Noise 100% 0 1,100
Icely Road Telemetry Upgrade 100% 30
Icely Road Site Security 100% 50 50
Stormwater Earthworks - Icely Rd Water 100% 0 0 200
Water Supply Asset Management Plan
Orange City Council Page 52
$’000
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
PROJECT DESCRIPTION
20
18
/1
9
20
19
/2
0
20
20
/2
1
20
21
/2
2
20
22
/2
3
20
23
/2
4
20
24
/2
5
20
25
/2
6
20
26
/2
7
20
27
/2
8
20
28
/2
9
20
29
/3
0
20
30
/3
1
20
31
/3
2
20
32
/3
3
20
33
/3
4
20
34
/3
5
20
35
/3
6
20
36
/3
7
20
37
/3
8
20
38
/3
9
20
39
/4
0
20
40
/4
1
20
41
/4
2
20
42
/4
3
20
43
/4
4
20
44
/4
5
20
45
/4
6
20
46
/4
7
20
47
/4
8
Administration Building - Icely Rd Water 100% 0 0 0 450
Back Up Pumps - Suma Park Dam 100% 0
Back Up Power Investigation 100% 0 100
Reservoir Tank Mixers 100% 0 100 100
Lake Canobolas Water Reticulation 100% 50 500
North Orange Water Supply Strategy 100% 100 200
Icely Road Water Treatment Plant Ozone System Upgrade
100% 0 0 0 0 300 2,700
WTP Upgrade 50% 50% 0 0 0 0 0 0 0 0 0 5,000
Anson 20ML Reservoir 100%
North Orange Reservoir 100% 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4,520
TOTAL 443 WATER TREATMENT 610 2,380 600 750 600 3,000 300 300 300 5,300 300 300 300 300 300 300 300 4,820 300 300 300 300 300 300 300 300 300 300 300 300
444 WATER STORAGE DAMS
Dam Warning System 100% 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
Gosling Creek Dam Upgrade 100% 0 900 0 4,500
Blackmans Rehabilitation - Stage 1 100% 70
Lake Canobolas Dam Upgrade 100% 0 0 0 0 0 0 0 4,500
Managed Aquifer Recharge Trial 100% 0 0 0 0 473 0 1,891
Advanced Water Recycling Plant (120L/s) 100% 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15,050
TOTAL 444 WATER STORAGE DAMS 80 910 10 4,510 483 10 1,901 4,510 10 10 10 10 10 10 10 10 10 10 15,060
10 10 10 10 10 10 10 10 10 10 10
449 EMERGENCY WATER PROJECTS
Spring Creek Dam to Icely Road Pipeline 100% 0 5,000
Blackmans Swamp Creek Stormwater Harvesting Stage 2
100% 800 5,000
Cowra to CTW Pipeline 100% 0 7,000
Bore through SHWWTP Line to SCD 100% 0 0 100
Bore Upgrades 100% 150 0 50
Purchase Bore Licences 100% 250
Package Advanced Water Recycling Plant (30L/s) 100% 0 0 0 5,578
Lake Canobolas Transfer Pump Station 100% 0 250
TOTAL 449 EMERGENCY WATER PROJECTS 1,200 17,250
150 5,578
Water Supply Asset Management Plan
Orange City Council Page 53
Appendix D: 30 Year Financial Plan
BASE CASE FINANCIAL SCENARIO
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Avera
ge 2019/20
2020/21
2021/22
2022/23
2023/24
2024/25
2025/26
2026/27
2027/28
2028/29
2029/30
2030/31
2031/32
2032/33
2033/34
2034/35
2035/36
2036/37
2037/38
2038/39
2039/40
2040/41
2041/42
2042/43
2043/44
2044/45
2045/46
2046/47
2047/48
2048/49
Income
Fees & Charges 15,219 15,270 15,319 15,366 15,411 15,455 15,499 15,540 15,579 15,638 15,676 15,729 15,784 15,814 16,158 15,628 15,963 16,009 16,072 16,115 16,174 16,213 16,269 16,324 16,379 16,430 16,480 16,557 16,309 16,456 15,894
Interest 1,351 1,439 1,430 1,433 1,475 1,525 1,522 1,536 1,500 1,495 1,601 1,704 1,798 1,886 2,116 1,954 2,127 2,184 2,280 2,376 2,470 2,563 2,629 2,706 2,794 2,880 2,966 3,049 3,003 3,030 2,094
Other 953 959 963 969 974 978 983 988 992 996 1,001 1,006 1,011 1,015 1,041 1,004 1,030 1,035 1,040 1,045 1,051 1,055 1,060 1,065 1,069 1,075 1,081 1,086 1,070 1,079 1,022
Grants 12,134 184 183 182 182 180 179 177 176 176 174 173 173 172 173 169 169 168 167 166 165 164 164 163 161 161 162 163 161 162 569
Contributions 2,009 2,028 2,056 2,075 2,111 2,132 2,153 2,182 2,203 2,234 2,255 2,296 2,319 2,351 2,445 2,340 2,442 2,477 2,512 2,537 2,574 2,610 2,638 2,685 2,724 2,752 2,791 2,831 2,866 2,891 2,417
Total Income 31,668 19,880 19,951 20,024 20,153 20,270 20,337 20,422 20,451 20,539 20,707 20,909 21,084 21,238 21,933 21,094 21,731 21,873 22,071 22,239 22,433 22,605 22,759 22,943 23,127 23,297 23,479 23,687 23,408 23,619 21,998
Operations
Administration 1,914 1,923 1,932 1,941 1,951 1,960 1,969 1,979 1,988 1,997 2,008 2,018 2,027 2,037 2,087 2,016 2,067 2,077 2,086 2,096 2,106 2,116 2,126 2,137 2,146 2,157 2,167 2,178 2,145 2,164 2,050
Engineering 1,377 1,384 1,390 1,396 1,402 1,408 1,414 1,420 1,425 1,432 1,439 1,446 1,452 1,458 1,493 1,442 1,476 1,483 1,490 1,497 1,503 1,510 1,517 1,523 1,529 1,536 1,543 1,550 1,526 1,540 1,467
General Operations 2,771 2,783 2,794 2,807 3,013 3,024 3,035 3,046 3,058 2,880 2,892 2,905 2,918 2,930 3,001 2,899 2,969 2,983 2,995 3,009 3,022 3,036 3,049 3,062 3,076 3,089 3,103 3,117 3,070 3,098 2,981
Energy 2,034 2,037 2,040 2,045 2,047 2,051 2,054 2,058 2,063 2,068 2,072 2,077 2,081 2,085 2,125 2,058 2,098 2,101 2,105 2,110 2,116 2,121 2,125 2,130 2,135 2,140 2,144 2,149 2,117 2,136 2,091
Chemical 96 95 95 94 94 94 94 93 93 92 91 92 91 91 91 89 90 89 89 89 88 87 88 87 86 86 86 85 84 85 90
Depreciation 4,111 4,114 4,163 4,163 4,188 4,188 4,234 4,233 4,339 4,326 4,325 4,322 4,331 4,329 4,390 4,262 4,383 4,384 4,382 4,379 4,376 4,373 4,396 4,394 4,391 4,387 4,385 4,381 4,315 4,354 4,310
Interest 184 193 166 156 154 152 149 147 145 143 141 138 136 134 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 71
Other 2,226 2,227 2,237 2,248 2,259 2,280 2,281 2,292 2,303 2,314 2,334 2,336 2,347 2,358 2,427 2,334 2,392 2,404 2,415 2,427 2,447 2,450 2,462 2,473 2,485 2,506 2,509 2,522 2,484 2,506 2,376
Total Operations 14,713 14,755 14,818 14,850 15,107 15,156 15,229 15,269 15,414 15,252 15,301 15,334 15,383 15,423 15,614 15,099 15,475 15,520 15,560 15,607 15,659 15,691 15,763 15,807 15,848 15,901 15,936 15,981 15,741 15,883 15,436
Maintenance
442 Water Reticulation 841 862 884 906 928 952 975 1,000 1,025 1,050 1,060 1,069 1,079 1,089 1,098 1,108 1,118 1,128 1,139 1,149 1,159 1,170 1,180 1,191 1,201 1,212 1,223 1,234 1,245 1,256 1,084
443 Water Treatment 586 601 616 631 647 663 680 697 714 732 739 745 752 759 766 773 779 786 794 801 808 815 823 830 837 845 853 860 868 876 756
444 Water Dams 75 77 78 80 82 85 87 89 91 93 94 95 96 97 98 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 96
Total Maintenance 1,502 1,539 1,578 1,617 1,658 1,699 1,742 1,785 1,830 1,876 1,893 1,910 1,927 1,944 1,962 1,979 1,997 2,015 2,033 2,052 2,070 2,089 2,107 2,126 2,146 2,165 2,184 2,204 2,224 2,244 1,937
Capital Works (Renewal)
Other 328 432 465 438 442 445 349 383 357 360 364 369 404 379 385 390 396 432 408 414 420 427 464 441 448 456 463 501 479 488 418
Water Reticulation Mains
800 1,100 1,550 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 835
Water Treatment Plant 350 300 300 600 3,000 300 300 300 2,800 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 485
Water Storage 0 900 0 4,500 0 0 0 4,500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 330
Water Pump Stations 150 0 50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
Total Renewal 1,628 2,732 2,365 6,338 4,242 1,545 1,449 5,983 3,957 1,460 1,464 1,469 1,504 1,479 1,485 1,490 1,496 1,532 1,508 1,514 1,520 1,527 1,564 1,541 1,548 1,556 1,563 1,601 1,579 1,588 2,074
Capital Works (New Works)
441 Water Administration
150 0 0 90 0 4,000 0 90 0 0 0 90 0 0 0 90 0 0 0 90 0 0 0 90 0 0 0 90 0 0 159
442 Water Reticulation 510 630 330 2,930 330 330 330 3,728 330 330 330 330 330 1,091 330 330 330 330 645 330 330 330 330 330 330 330 330 330 330 330 582
443 Water Treatment 2,080 300 450 0 0 0 0 0 2,500 0 0 0 0 0 0 0 4,520 0 0 0 0 0 0 0 0 0 0 0 0 0 328
444 Water Storage 80 10 10 10 483 10 1,901 10 10 10 10 10 10 10 10 10 10 10 15,060 10 10 10 10 10 10 10 10 10 10 10 593
449 Emergency Water Projects
1,050 17,250 100 5,578 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 799
Total New Works 3,870 18,190 890 8,608 813 4,340 2,231 3,828 2,840 340 340 430 340 1,101 340 430 4,860 340 15,705 430 340 340 340 430 340 340 340 430 340 340 2,462