INFRASTRUCTURE AND ASSET MANAGEMENT PLAN COMMUNITY WASTEWATER MANAGEMENT SCHEMES (CWMS)

Transcription

1 Wakefield Regional Council INFRASTRUCTURE AND ASSET MANAGEMENT PLAN for COMMUNITY WASTEWATER MANAGEMENT SCHEMES (CWMS) Adopted 22 October 2008, Minute 85

2 Document Control Document ID: iamplancwms.doc Rev No Date Revision Details Author Reviewer Approver Copyright 2007 All rights reserved. This Infrastructure and Asset Management Plan template was prepared for the Local Government Association of South Australia by the Institute of Public Works Engineering Australia, (IPWEA), Jeff Roorda & Associates (JRA) and Skilmar Systems for the use of South Australian councils only under the LGA s Sustainable Asset Management in SA Program.

3 TABLE OF CONTENTS..verify page numbers ABBREVIATIONS...i GLOSSARY...ii 1. EXECUTIVE SUMMARY...1 What Council Provides... 1 What does it Cost?... 1 Plans for the Future... 1 Measuring our Performance... 1 Community Consultation INTRODUCTION Background Goals and Objectives of Asset Management Plan Framework Core and Advanced Asset Management LEVELS OF SERVICE Customer Research and Expectations Legislative Requirements Current Levels of Service FUTURE DEMAND Demand Forecast Changes in Technology Demand Management Plan New Assets from Growth LIFECYCLE MANAGEMENT PLAN Background Data Physical parameters Asset capacity and performance Asset condition Asset valuations Risk Management Plan Routine Maintenance Plan Maintenance plan Standards and specifications Summary of future maintenance expenditures Renewal/Replacement Plan Renewal plan Renewal standards Summary of future renewal expenditure Creation/Acquisition/Upgrade Plan Selection criteria Standards and specifications Summary of future upgrade/new assets expenditure FINANCIAL SUMMARY Financial Statements and Projections Life Cycle Costs Funding Strategy Valuation Forecasts Key Assumptions made in Financial Forecasts ASSET MANAGEMENT PRACTICES Accounting/Financial Systems Asset Management Systems... 31

4 7.3 Information Flow Requirements and Processes Standards and Guidelines PLAN IMPROVEMENT AND MONITORING Performance Measures Improvement Plan Monitoring and Review Procedures REFERENCES...33 APPENDICES...34

5 - i - ABBREVIATIONS AAAC ARI Average annual asset consumption Average recurrence interval BOD Biochemical (biological) oxygen demand CRC CWMS DA DoH EF IAMP IRMP MMS PCI RV SS vph Current replacement cost Community wastewater management systems Depreciable amount Department of Health Earthworks/formation Infrastructure and asset management plan Infrastructure risk management plan Maintenance management system Pavement condition index Residual value Suspended solids Vehicles per hour

6 - ii - GLOSSARY Annual service cost (ASC) An estimate of the cost that would be tendered, per annum, if tenders were called for the supply of a service to a performance specification for a fixed term. The Annual Service Cost includes operating, maintenance, depreciation, finance/ opportunity and disposal costs, less revenue. Asset class Grouping of assets of a similar nature and use in an entity's operations (AASB ). Asset condition assessment The process of continuous or periodic inspection, assessment, measurement and interpretation of the resultant data to indicate the condition of a specific asset so as to determine the need for some preventative or remedial action. Asset management The combination of management, financial, economic, engineering and other practices applied to physical assets with the objective of providing the required level of service in the most cost effective manner. Assets Future economic benefits controlled by the entity as a result of past transactions or other past events (AAS27.12). Property, plant and equipment including infrastructure and other assets (such as furniture and fittings) with benefits expected to last more than 12 month. Average annual asset consumption (AAAC)* The amount of a local government s asset base consumed during a year. This may be calculated by dividing the Depreciable Amount (DA) by the Useful Life and totalled for each and every asset OR by dividing the Fair Value (Depreciated Replacement Cost) by the Remaining Life and totalled for each and every asset in an asset category or class. Brownfield asset values** Asset (re) valuation values based on the cost to replace the asset including demolition and restoration costs. Capital expansion expenditure Expenditure that extends an existing asset, at the same standard as is currently enjoyed by residents, to a new group of users. It is discretional expenditure, which increases future operating, and maintenance costs, because it increases council s asset base, but may be associated with additional revenue from the new user group, eg. extending a drainage or road network, the provision of an oval or park in a new suburb for new residents. Capital expenditure Relatively large (material) expenditure, which has benefits, expected to last for more than 12 months. Capital expenditure includes renewal, expansion and upgrade. Where capital projects involve a combination of renewal, expansion and/or upgrade expenditures, the total project cost needs to be allocated accordingly. Capital funding Funding to pay for capital expenditure. Capital grants Monies received generally tied to the specific projects for which they are granted, which are often upgrade and/or expansion or new investment proposals. Capital investment expenditure See capital expenditure definition Capital new expenditure Expenditure that creates a new asset providing a new service to the community that did not exist beforehand. As it increases service potential it may impact revenue and will increase future operating and maintenance expenditure. Capital renewal expenditure Expenditure on an existing asset, which returns the service potential or the life of the asset up to that which it had originally. It is periodically required expenditure, relatively large (material) in value compared with the value of the components or sub-components of the asset being renewed. As it reinstates existing service potential, it has no impact on revenue, but may reduce future operating and maintenance expenditure if completed at the optimum time, eg. resurfacing or resheeting a material part of a road network, replacing a material section of a drainage network with pipes of the same capacity, resurfacing an

7 - ii - oval, upgrade of pipe capacity. Where capital projects involve a combination of renewal, expansion and/or upgrade expenditures, the total project cost needs to be allocated accordingly. Capital upgrade expenditure Expenditure, which enhances an existing asset to provide a higher level of service or expenditure that will increase the life of the asset beyond that which it had originally. Upgrade expenditure is discretional and often does not result in additional revenue unless direct user charges apply. It will increase operating and maintenance expenditure in the future because of the increase in the council s asset base, eg. widening the sealed area of an existing road, replacing drainage pipes with pipes of a greater capacity, enlarging a grandstand at a sporting facility. Where capital projects involve a combination of renewal, expansion and/or upgrade expenditures, the total project cost needs to be allocated accordingly. Carrying amount The amount at which an asset is recognised after deducting any accumulated depreciation / amortisation and accumulated impairment losses thereon. Class of assets See asset class definition Component An individual part of an asset that contributes to the composition of the whole and can be separated from or attached to an asset or a system. Cost of an asset The amount of cash or cash equivalents paid or the fair value of the consideration given to acquire an asset at the time of its acquisition or construction, plus any costs necessary to place the asset into service. This includes one-off design and project management costs. Current replacement cost (CRC) The cost the entity would incur to acquire the asset on the reporting date. The cost is measured by reference to the lowest cost at which the gross future economic benefits could be obtained in the normal course of business or the minimum it would cost, to replace the existing asset with a technologically modern equivalent new asset (not a second hand one) with the same economic benefits (gross service potential) allowing for any differences in the quantity and quality of output and in operating costs. Current replacement cost As New (CRC) The current cost of replacing the original service potential of an existing asset, with a similar modern equivalent asset, i.e. the total cost of replacing an existing asset with an as NEW or similar asset expressed in current dollar values. Cyclic Maintenance** Replacement of higher value components/subcomponents of assets that is undertaken on a regular cycle including repainting, building roof replacement, cycle, replacement of air conditioning equipment, etc. This work generally falls below the capital/ maintenance threshold and needs to be identified in a specific maintenance budget allocation. Depreciable amount (DA) The cost of an asset, or other amount substituted for its cost, less its residual value (AASB 116.6) Depreciated replacement cost (DRC) The current replacement cost (CRC) of an asset less, where applicable, accumulated depreciation calculated on the basis of such cost to reflect the already consumed or expired future economic benefits of the asset Depreciation / amortisation The systematic allocation of the depreciable amount (service potential) of an asset over its useful life. Economic life See useful life definition. Expenditure The spending of money on goods and services. Expenditure includes recurrent and capital. Fair value The amount for which an asset could be exchanged, or a liability settled, between knowledgeable, willing parties, in an arms length transaction. Greenfield asset values ** Asset (re)valuation values based on the cost to initially acquire the asset.

8 - iii - Heritage asset An asset with historic, artistic, scientific, technological, geographical or environmental qualities that is held and maintained principally for its contribution to knowledge and culture and this purpose is central to the objectives of the entity holding it. Impairment Loss The amount by which the carrying amount of an asset exceeds its recoverable amount. Infrastructure assets Physical assets of the entity or of another entity that contribute to meeting the public's need for access to major economic and social facilities and services, eg. roads, drainage, footpaths and cycleways. These are typically large, interconnected networks or portfolios of composite assets The components of these assets may be separately maintained, renewed or replaced individually so that the required level and standard of service from the network of assets is continuously sustained. Generally the components and hence the assets have long lives. They are fixed in place and are often have no market value. Investment property Property held to earn rentals or for capital appreciation or both, rather than for: (a) use in the production or supply of goods or services or for administrative purposes; or (b) sale in the ordinary course of business (AASB 140.5) Level of service The defined service quality for a particular service against which service performance may be measured. Service levels usually relate to quality, quantity, reliability, responsiveness, environmental, acceptability and cost). Life Cycle Cost The life cycle cost (LCC) is average cost to provide the service over the longest asset life cycle. It comprises annual maintenance and asset consumption expense, represented by depreciation expense. The Life Cycle Cost does not indicate the funds required to provide the service in a particular year. Life Cycle Expenditure The Life Cycle Expenditure (LCE) is the actual or planned annual maintenance and capital renewal expenditure incurred in providing the service in a particular year. Life Cycle Expenditure may be compared to Life Cycle Expenditure to give an initial indicator of life cycle sustainability. Loans / borrowings Loans result in funds being received which are then repaid over a period of time with interest (an additional cost). Their primary benefit is in spreading the burden of capital expenditure over time. Although loans enable works to be completed sooner, they are only ultimately cost effective where the capital works funded (generally renewals) result in operating and maintenance cost savings, which are greater than the cost of the loan (interest and charges). Maintenance and renewal gap Difference between estimated budgets and projected expenditures for maintenance and renewal of assets, totalled over a defined time (eg 5, 10 and 15 years). Maintenance and renewal sustainability index Ratio of estimated budget to projected expenditure for maintenance and renewal of assets over a defined time (eg 5, 10 and 15 years). Maintenance expenditure Recurrent expenditure, which is periodically or regularly required as part of the anticipated schedule of works required to ensure that the asset achieves its useful life and provides the required level of service. It is expenditure, which was anticipated in determining the asset s useful life. Materiality An item is material is its omission or misstatement could influence the economic decisions of users taken on the basis of the financial report. Materiality depends on the size and nature of the omission or misstatement judged in the surrounding circumstances. Modern equivalent asset A structure similar to an existing structure and having the equivalent productive capacity, which could be built using modern materials, techniques and design. Replacement cost is the basis used to estimate the cost of constructing a modern equivalent asset.

9 - iv - Non-revenue generating investments Investments for the provision of goods and services to sustain or improve services to the community that are not expected to generate any savings or revenue to the Council, eg. parks and playgrounds, footpaths, roads and bridges, libraries, etc. Operating expenditure Recurrent expenditure, which is continuously required excluding maintenance and depreciation, eg power, fuel, staff, plant equipment, on-costs and overheads. Pavement management system A systematic process for measuring and predicting the condition of road pavements and wearing surfaces over time and recommending corrective actions. Planned Maintenance** Repair work that is identified and managed through a maintenance management system (MMS). MMS activities include inspection, assessing the condition against failure/breakdown criteria/experience, prioritising scheduling, actioning the work and reporting what was done to develop a maintenance history and improve maintenance and service delivery performance. PMS Score A measure of condition of a road segment determined from a Pavement Management System. Rate of annual asset consumption* A measure of average annual consumption of assets (AAAC) expressed as a percentage of the depreciable amount (AAAC/DA). Depreciation may be used for AAAC. Rate of annual asset renewal* A measure of the rate at which assets are being renewed per annum expressed as a percentage of depreciable amount (capital renewal expenditure/da). Rate of annual asset upgrade* A measure of the rate at which assets are being upgraded and expanded per annum expressed as a percentage of depreciable amount (capital upgrade/expansion expenditure/da). Reactive maintenance Unplanned repair work that carried out in response to service requests and management/supervisory directions. Recoverable amount The higher of an asset's fair value less costs to sell and its value in use. Recurrent expenditure Relatively small (immaterial) expenditure or that which has benefits expected to last less than 12 months. Recurrent expenditure includes operating and maintenance expenditure. Recurrent funding Funding to pay for recurrent expenditure. Rehabilitation See capital renewal expenditure definition above. Remaining life The time remaining until an asset ceases to provide the required service level or economic usefulness. Age plus remaining life is economic life. Renewal See capital renewal expenditure definition above. Residual value The net amount that an entity expects to obtain for an asset at the end of its useful life after deducting the expected costs of disposal. Revenue generating investments Investments for the provision of goods and services to sustain or improve services to the community that are expected to generate some savings or revenue to offset operating costs, eg public halls and theatres, childcare centres, sporting and recreation facilities, tourist information centres, etc. Risk management The application of a formal process to the range of possible values relating to key factors associated with a risk in order to determine the resultant ranges of outcomes and their probability of occurrence. Section or segment A self-contained part or piece of an infrastructure asset. Service potential The capacity to provide goods and services in accordance with the entity's objectives, whether those objectives are the generation of net cash inflows or the provision of goods and services of a particular volume and quantity to the beneficiaries thereof.

10 - v - Service potential remaining A measure of the remaining life of assets expressed as a percentage of economic life. It is also a measure of the percentage of the asset s potential to provide services that is still available for use in providing services (DRC/DA). Strategic Management Plan Documents Council objectives for a specified period (3-5 yrs), the principle activities to achieve the objectives, the means by which that will be carried out, estimated income and expenditure, measures to assess performance and how rating policy relates to the Council s objectives and activities. Sub-component Smaller individual parts that make up a component part. Useful life Either: (a) the period over which an asset is expected to be available for use by an entity, or (b) the number of production or similar units expected to be obtained from the asset by the entity. It is estimated or expected time between placing the asset into service and removing it from service, or the estimated period of time over which the future economic benefits embodied in a depreciable asset, are expected to be consumed by the council. It is the same as the economic life. Value in Use The present value of estimated future cash flows expected to arise from the continuing use of an asset and from its disposal at the end of its useful life. It is deemed to be depreciated replacement cost (DRC) for those assets whose future economic benefits are not primarily dependent on the asset's ability to generate new cash flows, where if deprived of the asset its future economic benefits would be replaced. Source: DVC 2006, Glossary

11 EXECUTIVE SUMMARY What Council Provides Wakefield Regional Council provides individual Community Wastewater Management Scheme (CWMS) in Balaklava, Blyth, Hamley Bridge, Snowtown and Port Wakefield (partial). The CWMS is a system that provides for the collection, treatment, and disposal of human effluent and commercial wastewater in an environmental and safe manner. Council s goal in managing CWMS assets is to meet the required level of service in the most cost effective manner and exceed the licensing conditions of the systems and to build and maintain CWMS infrastructure to develop and support sustainable communities in regions. What does it Cost? The total lifecycle cost of the existing CWMS asset category is $14.55 million, or $291,000 per year assuming a 50 year lifecycle. Current expenditure is $184,000 per annum. Gaps in life cycle costs and expenditure relate to the nature of the asset in that costs fluctuate throughout the life cycle. Plans for the Future Council plans to operate and maintain the CWMS network to achieve the following strategic objectives. Ensure the CWMS network is maintained at a safe and functional standard as set out in this infrastructure and asset management plan; Ensure the CWMS scheme is operated to meet licence conditions and treated effluent is returned to the environment without causing harm. Council also plans to upgrade or improve a number of the existing CWMS systems in the near future, including installing a full vacuum sewerage system in Port Wakefield to service the whole of the town and upgrading the CWMS at Balaklava, Hamley Bridge and Snowtown from evaporation pond systems to water treatment and reuse schemes. Measuring our Performance Quality CWMS assets will be maintained in a serviceable standard that meets the licence conditions. Defects or faults found or reported that are outside our service standard will be repaired. See our maintenance response service levels for details of defect prioritisation and response time. Function Our intent is that an appropriate CWMS network is maintained in partnership with other levels of government and stakeholders to: Manage the infrastructure in a sustainable manner; Develop an integrated asset management system; Minimise adverse impact from asset users, such as developers and utilities on the infrastructure assets; Maintain CWMS to an agreed serviceable standard. CWMS asset attributes will be maintained at a safe level and associated signage and equipment be provided as needed to ensure public safety. We need to ensure key functional objectives are met: Safe disposal of human and commercial waste in an environmental safe manner. The main functional consequence of the disposal of human and commercial waste is disposing of it in an environmental safe manner. Safety We inspect all CWMS assets regularly and prioritise and repair defects in accordance with our inspection schedule to ensure they are sound. Community Consultation The licence to operate the system governs the licensing requirements of any CWMS, and therefore the community is consulted on any upgrade that will impact directly on the user.

12 INTRODUCTION 2.1 Background This Infrastructure and Asset Management Plan for Community Wastewater Management Schemes (CWMS) has been prepared to demonstrate responsive management of assets (and services provided from assets), compliance with regulatory requirements, and to communicate funding required to provide the required levels of service. It should be noted that all figures in this plan are based on 2008 dollar values. The infrastructure and asset management plan is to be read with the following associated planning documents: Wakefield Regional Council Strategic Management Plan (incorporating the Public and Environmental Health Plan); Public and Environmental Health Act 1987; Asset Management Policy. This infrastructure and asset management plan covers all CWMS, which includes the following infrastructure assets and valuations (as at June 2007): Table 2.1. Assets covered by this Plan Asset category Number / Length Replacement Value Mechanical - Pumps 16 $72,000 Mechanical - Others 8 $68,000 Pump Station Electrical 6 $53,000 Pump Station Electrical (Inc. Telemetry) 2 Pump Station - Telemetry 2 $10,000 Pump Station Telemetry - SMS Alarm 3 $15,000 Pump Station Civil 8 $285,000 Property Connections 1,786 $2,268,000 Flushing Points 821 $322,605 Man holes 59 $416,000 Oxidation Lagoon megalitres $377,400 Oxidation Lagoon, Clay Liner 12.6 megalitres $252,000 Oxidation Lagoon, Failed Liner 9.08 megalitres $181,600

13 - 2 - Asset category Number / Length Replacement Value Evaporation Lagoons 55.8 megalitres $1,116, L Septic Tanks 21 $73,500 Amiad Micro Filtration Unit 1 $10,000 Flow Meter 1 $1,000 Irrigation Pump 3 $15,000 Intermittent Decant Activated Sludge 1 $320, mm Gravity Drains 8,155 metres $693, mm Gravity Drains 10,377 m $985, mm Gravity Drains 907 metres $95, mm upvc Gravity Drains 8,115 metres $689, mm upvc Gravity Drains 1,479 metres $140, mm PVC Gravity Drains 15,415 metres $1,329, mm PVC Gravity Drains 442 metres $44,969 50mm PVC CI6 Rising Main 1,126 metres $67,583 90mm PVC CI6 Rising Main 1,982 metres $128, mm PVC CI6 Rising Main 2,358 metres $194, mm CI6 Rising Main 1,422 metres $120,870 75mm PE Rising Main 684 metres $44,466 80mm PVC Rising Main 1,467 metres $88, mm upvc Connecting / Overflow pipe 75 metres $7,500 75mm Reuse Pipe 75 metres $4,875 32mm PE Irrigation Pipes 3,512 metres $42, mm Poly Liner megalitres $72,520 TOTAL $10,620,460 Key stakeholders in the preparation and implementation of this infrastructure and asset management plan (CWMS) are the Wakefield Regional Council and its relevant staff namely:

14 - 3 - Phil Barry Elca McCarthy Steven Jonas David Hassett Clive Hempel Chief Executive Officer Environmental Services Manager Corporate & Community Services Manager Infrastructure Services Manager Accountant 2.2 Goals and Objectives of Asset Management The Council exists to provide services to its community. Some of these services are provided by the use of infrastructure assets. Council has acquired infrastructure assets by purchase, by contract, construction by council staff and by donation of assets constructed by developers and others to meet increased levels of service. Council s goal in managing infrastructure assets is to meet the required level of service in the most cost effective manner for present and future consumers. The key elements of infrastructure asset management are: Taking a life cycle approach, Developing cost-effective management strategies for the long term, Providing a defined level of service and monitoring performance, Understanding and meeting the demands of growth through demand management and infrastructure investment, Managing risks associated with asset failures, Sustainable use of physical resources, Continuous improvement in asset management practices. This infrastructure and asset management plan is prepared under the direction of Council s vision, mission, goals and objectives. Council s Vision Statement is: To enhance community well-being through strong and progressive leadership in the provision of quality services, and the development of economic opportunities and continued and sustained growth of the region Council s Mission Statement is: To provide a range of effective service which meet the needs of our community in a fair and equitable manner and within available resources

15 - 4 - Relevant Council goals and objectives and how these are addressed in this infrastructure and asset management plan are detailed in Table 2.2. Table 2.2. Council Goals and how these are addressed in this Plan Goal Objective How Goal and Objectives are addressed in IAMP Ongoing development of treatment plants to recycle effluent 2.6 Develop a comprehensive Asset Management Plan Addressed in the following sections of IAMP 4.1 Demand Forecast 4.3 Demand Management Plan Physical parameters Known service deficiencies Standards and specifications Renewal ranking priority Renewal standards New assets ranking priority 7.1 Financial management systems 7.2 Asset Management systems 7.3 Standards and guidelines including Council policies The development of this plan addresses this objective 2.3 Plan Framework Key elements of the plan are: Levels of service specifies the services and levels of service to be provided by council. Future demand how this will impact on future service delivery and how this is to be met. Life cycle management how Council will manage its existing and future assets to provide the required services Financial summary what funds are required to provide the required services. Asset management practices how Council manages its assets. Monitoring how the plan will be monitored to ensure it is meeting Council s objectives. Asset management improvement plan how the plan will be improved. A flow chart for preparing an infrastructure and asset management plan is shown below.

16 - 5 - Flow Chart for preparing an Asset Management Plan Source: IIMM Fig 1.5.1, p 1.11 CORPORATE PLANNING Confirm strategic objectives and establish AM policies, strategies & goals. Define responsibilities & ownership. Decide core or advanced AM Pan. Gain organisation commitment. REVIEW/COLLATE ASSET INFORMATION Existing information sources Identify & describe assets. Data collection Condition assessments Performance monitoring Valuation Data AM PLAN REVIEW AND AUDIT INFORMATION MANAGEMENT, and DATA IMPROVEMENT ESTABLISH LEVELS OF SERVICE Establish strategic linkages Define & adopt statements Establish measures & targets Consultation LIFECYCLE MANAGEMENT STRATEGIES Develop lifecycle strategies Describe service delivery strategy Risk management strategies Demand forecasting and management Optimised decision making (renewals, new works, disposals) Optimise maintenance strategies DEFINE SCOPE & STRUCTURE OF PLAN IMPLEMENT IMPROVEMENT STRATEGY FINANCIAL FORECASTS Lifecycle analysis Financial forecast summary Valuation Depreciation Funding IMPROVEMENT PLAN Assess current/desired practices Develop improvement plan IS THE PLAN AFFORDABLE? ITERATION Reconsider service statements Options for funding Consult with Council Consult with Community ANNUAL PLAN / BUSINESS PLAN

17 Core and Advanced Asset Management This infrastructure and asset management plan is prepared as a core asset management plan in accordance with the International Infrastructure Management Manual. It is prepared to meet minimum legislative and organisational requirements for sustainable service delivery and long term financial planning and reporting. Core asset management is a top down approach where analysis is applied at the system or network level. Future revisions of this infrastructure and asset management (CWMS) plan may move towards an advanced asset management using a bottom up approach for gathering asset information for individual assets to support the optimisation of activities and programs to meet agreed service levels. 3. LEVELS OF SERVICE 3.1 Customer Research and Expectations Council has not to date carried out any research on customer expectations. This will be investigated for future reviews of the Infrastructure and Asset Management Plan for CWMS. 3.2 Legislative Requirements Council has to meet many legislative requirements including Australian and State legislation and State regulations. These include: Table 3.2. Legislative Requirements Legislation Local Government Act 1999 Occupational Health Safety and Welfare Act and Regulations 1986 Environmental Protection Act 1993 Natural Resource Management Act 2004 Public and Environmental Health Act 1987 Requirement Sets out role, purpose, responsibilities and powers of local government including the preparation of a long term financial plan supported by infrastructure and asset management plans for sustainable service delivery. Sets out roles and responsibilities to secure the health, safety and welfare of persons in the workplace. Sets out the role, purpose, responsibilities and powers of Council relating to protection and preservation of the environment. Sets out the role, purpose, responsibilities and powers of Council relating to managing natural resources. Sets out the role, purpose, responsibilities of powers of Council relating to public and environmental health protection. 3.3 Current Levels of Service Council has defined service levels in two terms. Community Levels of Service relate to how the community receives the service in terms of safety, quality, quantity, reliability, responsiveness, cost/efficiency and legislative compliance. Technical Levels of Service are operational or technical measures of performance developed to ensure that the minimum community levels of service are met.

18 - 7 - These technical measures relate to service criteria such as: Service Criteria Quality Availability Safety Technical measures may relate to: No blockages/breakdown, maintaining pumps Access to the CWMS from the residential property No effluent waste discharge into public places Council s current service levels are detailed in Table 3.3. Table 3.3. Current Service Levels Key Level of Service Performance Measure COMMUNITY LEVELS OF SERVICE Quality Provide a safe method of collection and disposal of wastewater Provide a safe method of collection and disposal of wastewater Function Safety TECHNICAL LEVELS OF SERVICE Condition Provide appropriate CWMS service to meet user requirements Provide appropriate CWMS service to meet user requirements Provide appropriate CWMS service to meet user requirements Provide appropriate CWMS service to meet user requirements Performance Measure Process Customer enquiry. Customer service requests Approval conditions compliance Number of wastewater discharge to the environment events Service (maint) requests Service (maint) requests response Planned and reactive maintenance distribution Average age of CWMS asset Performance Target Less than 1 per month Less than 1 noncompliance event per year. Less than 1 per annum Less than 1 reactive service requests per month 100% of planned and reactive service requests are completed within agreed performance limits More than 80% of maintenance expenditure is through the planned maintenance system. At least 80% of assets >50% useful life remaining Current Performance Not Recorded Not Recorded Not Recorded Not Recorded Not Recorded Not Recorded Table indicates 88% of maintenance expenditure is planned maintenance over a three year period. Average remaining useful life of CWMS assets is 67.8%

19 - 8 - Key Performance Measure Level of Service Performance Measure Process TECHNICAL LEVELS OF SERVICE (continued) Environmental Maintenance Impact response rates Performance Target 100% of maintenance defects responded to within 4 hours Current Performance Not Recorded Function Provide CWMS Services to meet community requirements Availability Ensure CWMS services are available to all occupied properties Cost effectiveness Provide CWMS services in cost effective manner Safety Provide safe suitable CWMS services, free from hazards Effluent discharge quality Number of properties able to connect to CWMS services CWMS operating and maintenance cost $/served population/yr Condition served Treated effluent discharge meets DoH approval conditions BOD <20 mg/l SS <30mg/L Chlorine <0.5 mg/l CWMS services are available to 98% of residential and commercial properties in town connected. CWMS rates set annually to gradually achieve cost effectiveness over life of schemes Less than 1 per year Effluent water tested in accordance with conditions of approval Scheme not extended to some areas due to economics Subject to asset management assessment nearly cost effective To date no safety issues have arisen 3.4 Desired Levels of Service At present, indications of desired levels of service are obtained from various sources including residents feedback to Council Members and staff, service requests and correspondence. Council has yet to quantify desired levels of service but will be do so in future revisions of this infrastructure and asset management plan.

20 FUTURE DEMAND 4.1 Demand Forecast Factors affecting demand include population change and demographics, seasonal factors, residential sprawl, consumer preferences and expectations, economic factors, agricultural practices including water reuse options and environmental awareness. Demand factor trends and impacts on service delivery are summarised in Table 4.1. Table 4.1. Demand Factors, Projections and Impact on Services Demand Present position Projection Impact on services factor Population 6, % Nil Demographics Median age 41.4 Continue to remain above state average Environment Majority town allotment Reduced availability of water and future greater than 2000 sq and lifestyle changes, township infill meters. resulting in increase demand for smaller allotments. Climate Rise in sea level Change Nil Increase demand for CWMS and effluent water reuse Reduction in capacity of outfall stormwater drainage lines from submerged discharge conditions. Low level areas may not drain at high tide levels 4.2 Changes in Technology Technology advances will allow for better monitoring of systems, capture of data for concise and accurate inflows and outflows measuring and up to date treatment plants and facilities. Final disposal of effluent is currently through evaporation at lagoons with minimal reuse. It is proposed to upgrade existing lagoon systems (evaporation) to treatment plants for reuse of treated water back into the community as a resource. A treatment plants is currently being constructed in Hamley Bridge with development of the proposal earmarked for Balaklava in the immediate future and for Snowtown after that. These Schemes will have effluent water reuse options connected, with the Hamley Bridge Scheme having a stormwater diversion for top up where periods of high reuse occur or through a low supply of effluent water. In Port Wakefield it is proposed to install a full vacuum sewerage system (due to high underground tidal levels) to upgrade from the current septic tank and drainage system, which will cater for the majority of the whole town with effluent water available for re-use within community facilities. 4.3 Demand Management Plan Demand for new services will be managed through a combination of managing existing assets, upgrading of existing assets and providing new assets to meet demand. The new assets required to meet growth will be acquired from land developments and constructed in accordance with Council requirements and be certified by an Engineer prior to handover.

21 Demand management practices include non-asset solutions, insuring against risks and managing failures by understanding current flow rates prior to new connections to ensure the integrity of the service. Opportunities identified to date for demand management are shown in Table 4.3. Further opportunities will be developed in future revisions of this infrastructure and asset management plan. Table 4.3. Demand Management Plan Summary Service Activity Demand Management Plan CWMS 1. Determine adequacy of existing scheme for new developments within serviced townships. Developers to provide infrastructure and contribute to existing schemes and upgrade or provide alternative approved methods of disposal. 2. Plan upgrading of existing schemes to accommodate projected growth. 3. Maximise use of existing CWMS assets

22 New Assets from Growth The new assets required to meet growth will be acquired from land developments where applicable and Council developed new assets. The new asset values are summarised in Fig 1. Fig 1. New Assets from Growth Acquiring these new assets will commit council to fund ongoing operations and maintenance costs for the life of the service provided from other parties. The future costs are identified and considered in developing forecasts of future operating and maintenance costs with developers being required provide infrastructure and to pay a contribution to the CWMS for additional units.

23 LIFECYCLE MANAGEMENT PLAN The lifecycle management plan details how Council plans to manage and operate the assets at the agreed levels of service (defined in section 3) while optimising life cycle costs. 5.1 Background Data The objective is to provide a sanitary system for the collection, conveyance, treatment and disposal of effluent within township areas Physical parameters The existing CWMS assets covered by this infrastructure and asset management plan are shown below. Town Infrastructure Quantity Unit Balaklava 100mm Gravity Drains 8,155 metres 150mm Gravity Drains 10,377 metres 200mm Gravity Drains 907 metres Property Connections 937 Flushing Points 407 Man holes 51 50mm PVC CI 6 Rising Main 614 metres 150mm CI6 Rising Main 1,422 metres Oxidation Lagoon megalitres Evaporation Lagoon megalitres 100mm upvc Gravity Drains 1,715 metres 3000L Septic Tanks mm PVC Gravity Drains 908 metres 100mm PVC CI6 Rising Main 237 metres Pump Station - Electrical 3 Pump Station - Civil 3 Pump Station - Telemetry 2 Mechanical - Pump 6 Mechanical - Other 3 Blyth Property Connections 258 Flushing Points 111 Man holes 4 50mm PVC CI 6 Rising Main 512 metres 100mm PVC Gravity Drains 5,069 metres 150mm PVC Gravity Drains 197 metres 80mm PVC Rising Main 1,467 metres Pump Station Telemetry SMS Alarm 1 1.5mm Poly Liner megalitres 75mm PE Rising Main 175 metres 100mm upvc Connecting/Overflow pipe 75 metres 75mm Reuse Pipe (To Property Boundary) 75 metres Amiad Micro Filtration Unit 1 Flow Meter 1 Irrigation Pump 1

24 Hamley Bridge Snowtown Port Wakefield Pump Station Electrical 1 Pump Station Electrical (Inc. Telemetry) 1 Pump Station Civil 2 Mechanical Pump 4 Mechanical Other 2 Property Connections 270 Flushing Points 141 Man holes 1 Evaporation Lagoon megalitres 100mm PVC Gravity Drains 8,115 metres 150mm PVC Gravity Drains 245 metres Pump Station Telemetry - SMS Alarm 1 Oxidation Lagoon, Failed Liner 9.08 megalitres 90mm PVC CI6 Rising Main 1,982 metres Pump Station - Electrical 1 Pump Station - Civil 1 Mechanical - Pump 2 Mechanical - Other 1 Property Connections 265 Flushing Points 132 Man holes 2 Evaporation Lagoon megalitres 100mm upvc Gravity Drains 6,399 metres 100mm PVC CI6 Rising Main 1,500 metres Pump Station Telemetry SMS Alarm 1 150mm upvc Gravity Drains 1,322 metres Oxidation Lagoon, Clay Liner 12.6 megalitres Pump Station Electrical 1 Pump Station Civil 1 Mechanical Pump 2 Mechanical Other 1 Property Connections 56 Flushing Points 30 Man holes 1 100mm PVC Gravity Drains 1,323 metres 100mm PVC CI6 Rising Main 621 metres 75mm PE Rising Main 509 metres Irrigation Pump 2 150mm upvc Gravity Drains 156 metres Intermittent Decant Activated Sludge 1 32mm PE Irrigation Pipes 3,512 metres Pump Station - Electrical (Inc. Telemetry) 1 Pump Station - Civil 1 Mechanical - Pump 2 Mechanical - Other 1

25 Standard maintenance has been carried out on these schemes, which includes pump station maintenance, flushing of lines and septic tank desludging since initial construction. Future works include: Currently installing Treatment Plant and infrastructure for water reuse by community at Hamley Bridge. Designing/costing CWMS for whole of Port Wakefield and upgrade including a treatment plant. Calling design/tenders for treatment plant and infrastructure for effluent water reuse Balaklava. The age profile of Council s assets is shown below. Fig 2. Asset Age Profile

26 Asset capacity and performance Council s services are generally provided to meet design standards where these are available. Locations where deficiencies in service performance are known are detailed in Table Table Known Service Performance Deficiencies Location Balaklava Balaklava Wattle Ridge Blyth Berbournie Estate Port Wakefield All CWMS Service Deficiency Increase number of residential allotments will require increased capacity for lagoons therefore consider upgrade to Treatment Plant. Telemetries required for new pump / sump Connect the whole of town to scheme. Limited lifespan of existing pumps. Require to be upgraded. Flow meters for all systems. Overloading in wet weather, investigate by smoke testing Asset condition The condition profile of Council s assets has not been assessed. Future revisions of this infrastructure and asset management (CWMS) plan may include condition ratings for CWMS assets Asset valuations The value of assets as at 30 th June 2007 covered by this infrastructure and asset management plan (CWMS) is summarised below. Assets are valued at greenfield rates. Current Replacement Cost $10,620,460 Depreciable Amount $3,420,960 Depreciated Replacement Cost $7,199,500 Annual Depreciation Expense $177,636 Council s sustainability reporting reports the rate of annual asset consumption and compares this to asset renewal and asset upgrade and expansion. Asset Consumption 67.8% Annual Upgrade/Expansion 1.6% 5.2 Risk Management Plan An assessment of risks 1 associated with service delivery from infrastructure assets has identified critical risks to Council. The risk assessment process identifies credible risks, the likelihood of the risk event occurring, the consequences should the event occur, develops a risk rating, evaluates the risk and develops a risk treatment plan for non-acceptable risks. The risks identified in the infrastructure risk management plan are summarised in Table 5.2.

27 Table 5.2. Risks and Treatment Plans Asset at Risk What can Happen Risk Rating Risk Treatment Plan Mechanical - Pumps Power Failure Medium Maintain contingency plan, Contact Provider for provision of service. Mechanical -0ther (Probes, Flanges) Breakdown Low Maintain contingency plan, replacement program Pump Station Electrical Power Failure Low Maintain contingency plan, Contact Provider for provision of service. Pump Station - Telemetry Breakdown Low Contingency Plan Pump Station - Civil Blockage, Silting Medium Contingency Plan Property Connections Blockage Low Have residents clear Flushing Points Silting Low Maintenance plan Man Holes Silting Low Maintenance plan Oxidation Lagoon - Clay Liner Oxidation Lagoon - Poly Liner Base / Walls collapse, leak Low Capital repairs as required. Deteriation Low Capital repairs as required Evaporation Lagoon Base / Walls collapse, leak Low Capital repairs as required Septic Tanks Suspended solids entering, resulting in silting Low Maintenance plan Amiad Micro Filtration Blockage Low Maintenance plan Flow Meter Blockage Low Maintenance plan Irrigation Pump Blockage Low Maintenance plan Intermittent Decant Activated Sludge Blockage Low Maintenance plan Rising Mains Blow out Medium Repair or Replace line 100mm upvc Connecting / Overflow pipe Failure Low Replace line. Reuse Pipe Blow out Medium Replace line Irrigation Pipes Blow out Medium Replace line

28 Routine Maintenance Plan Routine maintenance is the regular on-going work that is necessary to keep assets operating, including instances where portions of the asset fail and need immediate repair to protect the integrity of the scheme Maintenance plan Maintenance includes reactive, planned and cyclic maintenance work activities. Reactive maintenance is unplanned repair work carried out in response to service requests and management/supervisory directions. Planned maintenance is repair work that is identified and managed through a maintenance management system (MMS). MMS activities include inspection, assessing the condition against failure/breakdown experience, prioritising, scheduling, actioning the work and reporting what was done to develop a maintenance history and improve maintenance and service delivery performance. Cyclic maintenance is replacement of higher value components/sub-components of assets that is undertaken on a regular cycle. This work generally falls below the capital/maintenance threshold. Maintenance expenditure trends are shown in Table Table Maintenance Expenditure Trends Year Maintenance Expenditure Reactive Planned Cyclic 2004/05 $7,594 $58,210 $2, /06 $8,214 $71,440 $2, /07 $5,437 $84,315 $2,206 Planned maintenance work is therefore 88% of total maintenance expenditure over this three year period. Maintenance expenditure levels are considered to be adequate to meet required service levels. Future revision of this infrastructure and asset management plan (CWMS) will include linking required maintenance expenditures with required service levels. Using their experience and judgement, Council staff undertake assessment and prioritisation of reactive maintenance.

29 Standards and specifications Maintenance work is carried out in accordance with the following Standards and Specifications. AS 1477 AS 1646 AS 1260 AS 2280 AS 2129 AS 2544 AS 1326 AS 1110 AS 1112 AS 1237 AS 1650 AS 4130 AS 1204 AS 1628 AS 2638 AS 3578 AS 1160 AS 1289 AS 1465 AS 1480 AS 1302 AS 1304 AS 1250 AS 3735 AS 1830 AS 1725 Requirements for PVC pipes and fittings Requirements for the use of elastomeric seals in water, sewerage and drainage systems. Specifies requirements for PVCU pipes and fittings for sewer, drain, waste and vent applications. Specifies requirements for ductile iron pressure pipes centrifugally cast in moulds, and ductile iron fittings. Requirements for circular flanges. Specifies requirements for grey iron fittings. Requirements for materials for loose polyethylene sleeving intended for the corrosion protection of ductile and grey iron pipelines. Specifies the characteristics of hexagon head bolts. Specifies the characteristics of hexagon nuts. Specifies the nominal dimensions of washers. Requirements for galvanized coatings. Requirements for polyethylene pipes. Requirements for structural steels Requirements for metallic gate, globe and non-return valves. Requirements for solid gate metal-bodied metal-seated gate valves. Requirements for flanged, shouldered and grooved end, cast iron non-return valves. Requirements for anionic and cationic bituminous emulsions. The procedure for preparing disturbed samples. Requirements for natural aggregates for concrete. Requirements of reinforced concrete in structures. Geometrical product specifications Requirements for welded wire reinforcing fabric for concrete. Requirements for the use of steel in structures. Requirements for concrete structures used for retaining liquids at ambient temperature. Specifies the properties of unalloyed and low-alloyed grey cast irons used for castings. Standard specifies requirements for chain link fabric security fencing and gates.