Stormwater Management Plan Volume I Final Report · Stormwater Management Plan Volume I Final...

City of Greater GeelongStormwater Management PlanCity of Greater GeelongStormwater Management Plan

Volume IVolume IFinal ReportFinal Report

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O C E A N I C S A U S T R A L I A

City of Greater Geelong

Stormwater Management PlanVolume I

Final Report

Prepared For: City of Greater Geelong

Prepared By: WBM Oceanics Australia

Offices

Brisbane Denver

Karratha Melbourne

Morwell Newcastle

Sydney Vancouver



DOCUMENT CONTROL SHEET

Document: R.W00234.001.02.COGGSWMP.VolI.doc

Title: City of Greater Geelong Stormwater Management Plan Volume I

Project Manager: Nick Somes

Author: Belinda Lovell

Client: City of Greater Geelong

Client Contact: Bruce Humphries

Client Reference: 110298

WBM Oceanics Australia Melbourne Office: Level 5, 99 King Street MELBOURNE VIC 3000 Australia PO Box 604 Collins Street West VIC 8007 Telephone (03) 9614 6400 Facsimile (03) 9614 6966 www.wbmpl.com.au ACN 010 830 421

Synopsis: This report constitutes the first volume of the Stormwater Management Plan developed for the City of Greater Geelong.

REVISION/CHECKING HISTORY

REVISION

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1 4/09/02 NS BL

2 30/11/02 NS BL

DISTRIBUTION

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City of Greater Geelong

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WBM Library

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CONTENTS III



CONTENTS

Contents iii List of Figures iv List of Tables v

1 INTRODUCTION 1-1

1.1 Why has the Stormwater Management Plan Been Developed? 1-1 1.2 What is Stormwater Pollution and Management? 1-2

2 PROCESS- HOW WAS THE PLAN DEVELOPED? 2-1

2.1 Overview 2-1 2.2 What is Risk Assessment and Risk Management? 2-2 2.3 Stakeholder Involvement 2-2 2.4 Outcomes of the Stormwater Management Plan 2-2

3 CITY OF GREATER GEELONG BACKGROUND 3-1

3.1 How is Stormwater Managed in the City of Greater Geelong? 3-2 3.1.1 Stormwater Management in Local Government 3-2 3.1.2 Existing Stormwater Management and Related

Environmental Practices 3-2 3.1.3 The Role of Other Agencies in Stormwater Management 3-3

4 LOCAL STORMWATER MANAGEMENT ISSUES 4-1

4.1 Stormwater Risk Assessment 4-1 4.2 Subcatchment Breakdown 4-1 4.3 Receiving Values- What Are We Trying to Protect? 4-4 4.4 What are the Key Stormwater Threats within the

City of Greater Geelong? 4-8 4.5 Priority Risk Issues 4-10

5 MANAGEMENT FRAMEWORK REVIEW 5-1

5.1 Coordination and Communication 5-1 5.2 Referrals and the Approvals Process 5-2 5.3 Resources 5-3

LIST OF FIGURES IV



5.4 Council Strategic and Regulatory Documentation 5-3 5.5 Regulation and Enforcement 5-4 5.6 Education 5-4 5.7 Summary of Key Management Framework Issues 5-5

6 STORMWATER REUSE 6-1

6.1 Overview 6-1 6.2 Feeding Demand 6-1 6.3 City Of Greater Geelong’s Key Reuse Opportunities 6-2

7 WATER QUALITY MODELLING 7-3

7.1 Introduction 7-3 7.2 Pollutant Export Results 7-3 7.3 Pollutant Export Conclusions 7-3

8 STORMWATER MANAGEMENT STRATEGIES 8-1

9 MANAGEMENT FRAMEWORK IMPROVEMENT STRATEGIES 9-1

10 SWMP IMPLEMENTATION AND REVIEW 10-11

10.1 Implementation Approach 10-11 10.2 Implementation Monitoring and Review Process 10-11 10.3 Funding and Budget Allocation 10-12

11 CONCLUSIONS 11-1

LIST OF FIGURES

Figure 2-1 Stormwater Management Planning Process 2-1 Figure 3-1 The City of Greater Geelong 3-1 Figure 4-1 Risk Assessment 4-1 Figure 4-2 Study Subcatchment Locations, City of Greater Geelong 4-3 Figure 8-1 Proposed GPT locations for the North Geelong Subcatchment 8-6 Figure 8-2 Recommended locations of GPTs with Oil and Grease Interceptors

for the Breakwater subcatchment. 8-11 Figure 8-3 Swan Bay proposed wetland/treatment train 8-16 Figure 8-4 Location of Selected Structural Treatment Opportunities 8-19 Figure 8-5 Waurn Ponds proposed GPT 8-25

LIST OF TABLES V



Figure 8-6 Portarlington proposed GPTs 8-29

LIST OF TABLES

Table 4-1 Study Subcatchment Descriptions 4-2 Table 4-2 Priority Risk Issues 4-10 Table 5-1 Priority Management Framework Issues 5-5 Table 8-1 Risk Management Strategy 1 – Sewer Overflow and Illegal Connections

(Rippleside) 8-2 Table 8-2 Risk Management Strategy 2 – Industrial Land Use Runoff (Newcomb) 8-3 Table 8-3 Risk Management Strategy 3 – Industrial Land Use (North Geelong) 8-4 Table 8-4 Risk Management Strategy 4 – Commercial Land Use Runoff

(Geelong West and Eastern Beach) 8-7 Table 8-5 Risk Management Strategy 5 – Septic and Sewer Leakage (Newcomb) 8-8 Table 8-6 Risk Management Strategy 6 – Unstable and Degraded Waterways

(Clifton Springs) 8-9 Table 8-7 Risk Management Strategy 7 – Industrial Land Use Runoff (Breakwater) 8-10 Table 8-8 Risk Management Strategy 8- Land and Infrastructure Development

(Municipality) 8-12 Table 8-9 Risk Management Strategy 9– Industrial Land Use Runoff (Newtown) 8-14 Table 8-10 Risk Management Strategy 10– Residential Land Use Runoff (Swan Bay) 8-15 Table 8-11 Risk Management Strategy 11- Docks and Wharves (Corio) 8-17 Table 8-12 Risk Management Strategy 12- Industrial Land Use Runoff (Rippleside) 8-18 Table 8-13 Risk Management Strategy 13- Residential Land Use Runoff (Rippleside) 8-20 Table 8-14 Risk Management Issue 14 – Major Road Runoff

(North Geelong and Geelong West) 8-21 Table 8-15 Risk Management Strategy 15 – Building Site Runoff (Municipality) 8-22 Table 8-16 Risk Management Strategy 16- Residential Land Use Runoff

(Waurn Ponds) 8-23 Table 8-17 Risk Management Strategy – 17 Industrial Land Use Runoff (Corio) 8-26 Table 8-18 Risk Management Strategy 18- Residential Land Use Runoff

(Ocean Grove) 8-27 Table 8-19 Priority Risk Issue 19- Residential Land Use Runoff (Portarlington) 8-28 Table 8-20 Risk Management Strategy 20- Aging Infrastructure

(Geelong West and Newtown) 8-30 Table 9-1 Management Framework Strategy 1 - Education 9-2 Table 9-2 Management Framework Strategy 2 - Council Guidelines 9-3 Table 9-3 Management Framework Strategy 3 – Communication 9-4 Table 9-4 Management Framework Strategy 4 - Referral Process 9-5 Table 9-5 Management Framework Strategy 5 – Community Education 9-6 Table 9-6 Management Framework Strategy 6 – Resources 9-7 Table 9-7 Management Framework Strategy 7 - Regulation and Enforcement 9-8

INTRODUCTION 1-1



1 INTRODUCTION

WBM Oceanics Australia was commissioned by the City of Greater Geelong to develop a Stormwater Management Plan (SWMP) for the municipality. The SWMP has been developed to guide Council in improving the environmental management of stormwater throughout the municipality.

The SWMP provides a framework for integrating stormwater management as part of Council’s existing management and planning activities. In this regard, the SWMP is intended to provide the basis for an ongoing process that is aimed at protecting and enhancing receiving environmental values and beneficial uses that are currently threatened by stormwater runoff.

The Plan has been prepared in four volumes, with this report constituting Volume I. Volume I is an executive summary document, which provides a précis of the overall Stormwater Management Plan.

The following information is presented in Volume II, III and IV of the plan: • Volume II provides detailed information on the approach adopted, recommendations aimed

at responding to existing threats to values and suggested improvement to Council’s management framework to limit the future occurrence of stormwater threats;

• Volume III provides Appendices that accompany Volume II; and • Volume IV provides a detailed assessment threats and values associated with the stormwater

system.

1.1 Why has the Stormwater Management Plan Been Developed?

The City of Greater Geelong’s Stormwater Management Plan has been developed to improve the environmental management of urban stormwater within the municipality. Improvements in environmental management of stormwater runoff from urban areas are necessary to meet the community’s expectations and values regarding the health and quality of local receiving environments.

A number of regional management strategies and actions plans have identified urban stormwater management as a key priority for protecting environmental values within the Geelong region. In addition to this, a State Government initiative to develop Urban Stormwater Management Plans for all local authorities in Victoria has been enacted. The initiative is being conducted and partially funded as part of the Victorian Stormwater Action Program (VSAP).

INTRODUCTION 1-2



1.2 What is Stormwater Pollution and Management?

Modification of the natural characteristics of a catchment, through processes such as urban development, has a significant impact on the nature of stormwater runoff. These changes generally manifest in modifications to the natural flow regime and the creation of a multitude of pollutant sources that can contaminate stormwater runoff.

In particular, the process of urbanisation typically causes increased runoff volumes and the introduction of a variety of pollutant sources. These pollutants become entrained in stormwater runoff and are efficiently delivered to the receiving environment. Their accumulation within the receiving environment can result in severe and often irreversible impacts, which ultimately affect the quality of life enjoyed by the community.

Stormwater management is concerned with the development and implementation of a range of strategies to minimise the impacts of stormwater pollution and protect the values of the receiving environment. These strategies can include a range of site-specific structural and non-structural measures as well as plans, policies and procedures aimed at managing activities that could potentially result in stormwater pollution.

Strategies can be formulated with a combination of both structural and non-structural measures. Structural measures are physical works undertaken to either reduce the volume of stormwater pollution generated or to treat stormwater runoff to remove pollutants. Non-structural measures include the application of a range of planning controls, management practices and education programs to prevent stormwater pollution from being generated. Typically a range of structural and non-structural measures is applied to a catchment to mitigate the impacts of stormwater pollution.

The development of a Stormwater Management Plan involves the selection, grouping and recommendation of different measures as part of strategies aimed at protecting receiving environmental values defined by the community.

PROCESS- HOW WAS THE PLAN DEVELOPED? 2-1



2 PROCESS- HOW WAS THE PLAN DEVELOPED?

2.1 Overview

The approach which has been adopted in preparing the City of Greater Geelong’s SWMP is consistent with the revised process (August 2000) in Chapter 3 of the Best Practice Environmental Management (BPEM) Guidelines for Stormwater Management (Victorian Stormwater Committee, 1999). These guidelines define a staged process based on four separate study phases: • Preliminary Activities; • Priority Management Issues; • Development of Stormwater Management Plan; and • Finalise Stormwater Management Plan.

The process is primarily concerned with defining Priority Management Issues relating to existing stormwater risks and Council’s Management Framework, and devising strategies that respond to these issues. These concepts are described in more detail as follows: Council’s Management Framework- identifying deficiencies in the management framework and recommending improvements to assist Council in its ongoing day to day planning, design and management activities; and

• Stormwater Risks- responding to current risks involves identification and prioritisation of values, threats and risks and the formulation of responsive strategies to manage and minimise impacts to priority values.

Figure 2-1 provides a schematic representation of the process adopted in developing the Stormwater Management Plan.

Figure 2-1 Stormwater Management Planning Process

Identify LocalStormwater

ManagementIssues & Strengths

ManagementFramework Review

Preliminary Activities

ValuesAssessment

Collate andReview Available

Data

StormwaterThreats

RiskAssessment

StormwaterManagement

Strategies

ManagementFrameworkStrategies

REA

CTI

VEPR

OAC

TIVE

Priority Management Issue Identification Management PlanDevelopment

Phase 2Phase 1 Phase 3

PriorityManagement

Issues

SubmitStormwater

ManagementPlan

FinaliseStormwater

Management Plan

Phase 4

PROCESS- HOW WAS THE PLAN DEVELOPED? 2-2



2.2 What is Risk Assessment and Risk Management?

The management of existing stormwater issues has been prioritised using a risk based approach. Risk assessment is concerned with balancing the probability of impact against the consequence of the impact. This was applied in the stormwater management planning process by identifying receiving environmental values and stormwater threats. The aim of the risk assessment was to identify areas where the risk of losing and degrading environmental values was greatest. This was done by considering the threats and values for different areas in the municipality and calculating the risk.

2.3 Stakeholder Involvement

A key feature of the study process was the involvement of stakeholders at three levels. The following three key consultation forums and groups were involved as part of regular workshops and meetings at key stages throughout the development of the SWMP: • The Steering Committee was led by the City of Greater Geelong’s Project Officer (Bruce

Humphries) and comprised key representatives from the City of Greater Geelong, Corangamite Catchment Management Authority, EPA and Barwon Water. The Steering Committee attended project meetings at key stages throughout the study to review the project status and provide guidance regarding the development of the Stormwater Management Plan.

• Project Working Group (PWG) met on four separate occasions during the study, corresponding to each of the separate phases. The PWG was made up of Council Officers, community representatives and representatives from regional and state management authorities. The PWG played a critical role in identifying local issues relevant to stormwater management, defining receiving values and participating in the prioritisation of values and threats, risk assessment and strategy development.

• Management Framework Advisory Group (MFAG) participated in three meetings during the study. The MFAG was made up of Council Officers. The MFAG played a critical role in identifying management framework issues relevant to the SWMP, participating in decisions regarding issue prioritisation and strategy development.

• Environment Management Strategy Implementation Committee (EMSIC) participated in one briefing/feedback meeting during the study.

2.4 Outcomes of the Stormwater Management Plan

The SWMP contains a number of outcomes that are targeted to assist Council to improve its management activities and respond to priority threats that may impact on environmental and amenity values. Key recommendations or outcomes of the SWMP include • Specific Stormwater Management Strategies that aim to respond to priority risks in the

municipality; • Recommendations for improvement of Council’s Management Framework to prevent

stormwater degradation before it occurs; and • Identification of an Implementation and Review Program to guide Council in the implementation

of the SWMP and continued Best Practice in Stormwater Management.

CITY OF GREATER GEELONG BACKGROUND 3-1



3 CITY OF GREATER GEELONG BACKGROUND

The City of Greater Geelong occupies an area of 1,276 km2 and is located approximately 60 km southwest of Melbourne. Figure 3-1 shows the municipality of the City of Greater Geelong. A population in excess of 190,000 people lives within the municipality. Geelong is the major urban centre, with a number of satellite townships distributed throughout the Bellarine Peninsula and rural hinterland.

The Geelong urban centre is located around Corio Bay and contains the major commercial and industrial areas within the municipality. A number of smaller townships are located across the Bellarine Peninsula and include Ocean Grove, Portarlington, Leopold, Lara and Clifton Springs. Large areas of the municipality are rural areas.

Major waterways within the City of Greater Geelong include the Barwon River, Moorabool River, Waurn Ponds Creek, Armstrong Creek and Sutherlands Creek, which all drain to Bass Strait. In addition, there is Hovells Creek, Cowies Creek that drain to Corio Bay, Kewarra Creek that drains to Port Phillip and the Little River that forms the north-eastern boundary of the municipality. Significant lakes and wetlands that occur within the municipality include, Lake Borrie, Lake Connewarre/ Reedy Lake/ Hospital Swamp, Lake Victoria, Lake Lorne and Begola Wetlands.

Figure 3-1 The City of Greater Geelong




3.1 How is Stormwater Managed in the City of Greater Geelong?

3.1.1 Stormwater Management in Local Government

Local Government plays an important role in managing stormwater at a local and often regional level. Council’s “day to day” management function with respect to land use planning, infrastructure and the provision of services, provides an ideal basis for managing stormwater to achieve local and regional environmental outcomes. In this regard, stormwater management activities usually occur within local government via:

• The implementation and management of infrastructure, programs and plans specifically aimed at mitigating a known stormwater pollution threat (eg. a gross pollutant trap); and

• Ongoing day to day activities which form a part of Council’s management framework including planning, coordination, communication, development approvals, policy, regulation and education.

The first of these activities can be labelled as reactive stormwater management, while the second can be labelled as pro-active. If Council’s management framework (ie. the 2nd activity) is operating effectively, this reduces the need for reactive stormwater management through the implementation of site specific mitigation devices and plans.

3.1.2 Existing Stormwater Management and Related Environmental Practices

Stormwater quality and environmental management initiatives adopted by the City of Greater Geelong include a combination of both structural and non-structural measures and programs. Key management measures and activities contributing to stormwater and environmental management within the City of Greater Geelong include the following;

• Council is currently involved in a number of education programs including the development of a Stormwater Education Manual, the production of the State of the Environment web site, the Swan Bay Integrated Catchment Management Project (involving drain stencilling) and the Waste Wise Resource Kit in association with EcoRecycle.

• Council currently own and maintain a number of structural stormwater treatment devices. These include artificial wetlands, retention basins, gross pollutant traps and drainage inlet traps.

• Source controls presently located in the City of Greater Geelong include street sweeping, waste and refuse collection and water reuse.

• A number of management plans have been developed for waterways throughout the municipality, including the Baron River Land Use & Open Space Corridor Plan, Corangamite Catchment Management Authority Waterway Health Strategy, Local Waste and Litter Education Strategy as a part of the Barwon Region Waste Management Plan and Geelong Environmental Management Strategy. These plans all related to the impact of urban development on the environment and seek to reduce its impact.




3.1.3 The Role of Other Agencies in Stormwater Management

Responsibilities for waterway and water infrastructure management within the City of Greater Geelong are also shared amongst a number of management authorities (local and regional) and stakeholders. Each of these organisations work with Council to manage stormwater. The roles and responsibilities of key organisations are summarised as follows:

• The Environment Protection Authority (EPA) establishes environmental standards and applies regulatory and non-regulatory means to achieve these standards (eg. licensing, legislation and enforcement). The EPA also administers the Victorian Stormwater Action Program (VSAP);

• Corangamite Catchment Management Authority has responsibility for managing land and water resources and ensuring sustainable development of natural resource-based industries within the municipality;

• Barwon Water manages water and sewage collection, treatment and disposal within the municipality and also manages the Corangamite Region Waterwatch program in partnership with the CCMA;

• Foreshore Committees manage coastal reserves throughout the municipality. It is common for urban areas to drain through these reserves and to impact on the beaches;

• Vic Roads control and manage major transport corridors and road reservations throughout the municipality;

• VicTrack own lands which support railway infrastructure within the municipality; and

• Special Interest Groups representing a variety of regional and local issues related to the environment and its management.

.

LOCAL STORMWATER MANAGEMENT ISSUES 4-1



4 LOCAL STORMWATER MANAGEMENT ISSUES

4.1 Stormwater Risk Assessment

The aim of the Stormwater Risk assessment was to identify areas where the risk of losing or degrading environmental values was greatest. Risk assessment is concerned with balancing the probability of impact against the consequence of the impact. This is applied in the stormwater management planning process by assessing the significance of receiving values, magnitudes of stormwater threats and how they related to one another.

The risk assessment was carried out by scoring the threats and values for different subcatchments in the municipality and calculating the risk (Figure 4-1).

Figure 4-1 Risk Assessment

4.2 Subcatchment Breakdown

For the purposes of this study, the municipality has been separated into a series of subcatchments, or reaches, to simplify assessments and provide a basis for developing management strategies. The breakdown of study subcatchments has been based on hydrological catchment boundaries and major land use precincts. Using this approach, ten separate study subcatchments have been defined. Their adopted reach names and extents are summarised in Table 4-1 and presented in Figure 4-2.

Threatfrom stormwater pollution orflows:- scale or severity- likelihood or frequency

Valueof receiving environment:- sensitivity; and- significance

Threat x Value x Sensitivity

RISKof losing environmental/amenity value




Table 4-1 Study Subcatchment Descriptions Reach

Number Subcatchment

Name Waterway/s

1 You Yangs Hovells Creek, Little River, Balliang Creek and Beilies Creek

2 Avalon Little River, Lake Borrie (Western Treatment Plant) and Corio Bay

3 Lara Hovells Creek, Limeburners Lagoon and Cheetham Saltworks

4 Corio Urban drainage network and Corio Bay

5 North Geelong Cowies Creek and Corio Bay

6 Rippleside Urban drainage network and Corio Bay

7 Geelong West Urban drainage network and Corio Bay

8 Newtown Barwon River and Balyang Sanctuary

9 Eastern Beach Urban drainage network and Corio Bay

10 Breakwater Barwon River and highly modified drainage lines

11 Newcomb Highly modified drainage lines, Cheetham Saltworks and Corio Bay

12 Reedy Lake Reedy Lake and Gateway Sanctuary

13 Leopold Urban drainage network and Corio Bay

14 Wallington Urban drainage network and Lake Connewarre

15 Clifton Springs Kewarra Creek, Lake Lorne, McLeods Waterholes and Port Phillip

16 Portarlington Salt Lagoon, St.Leonards Lake, Point Richards Road Wetlands, Urban drainage network and Port Phillip

17 Swan Bay Lake Victoria, Lonsdale Lakes and Swan Bay

18 Ocean Grove Barwon River, Thompsons Creek, Salt Swamp, Lake Murtnaghurt, Blue Waters Lake and Bass Strait

19 Connewarre Armstrong Creek, Barwon River, Lake Connewarre and Hospital Swamp

20 Waurn Ponds Waurn Ponds Creek, Barwon River and Jerringot Wetlands

21 Highton Barwon River

22 Fyansford Barwon River and Moorabool River

23 Moorabool Moorabool River

24 Anakie Cowies Creek, Sutherland Creek and Moorabool River




Figure 4-2 Study Subcatchment Locations, City of Greater Geelong




4.3 Receiving Values- What Are We Trying to Protect?

The community’s expectations regarding their utilisation and interaction with the environment are defined as part of the SWMP. These expectations are termed values and are defined to reflect the beneficial uses that the community enjoys. Each of these value types has the potential to be either directly or indirectly affected by stormwater threats.

Key receiving values in the City of Greater Geelong are summarised as follows for each of the subcatchments:

• You Yangs subcatchment is predominantly rural and comprises the northern portion of the municipality, covering an area of approximately 402km2. The Highly valued receiving environments of Hovells Creek and Little River, have significant cultural heritage, amenity and environmental values associated with them.

• Avalon subcatchment is adjacent to Port Phillip (Very Highly valued receiving environment) in the north eastern portion of the municipality, and contains a variety of land uses and waterways. Environmental in-stream and riparian habitat is valued Highly and marine and foreshore area is valued Very Highly. The banks of Little River estuary are of Very High indigenous cultural heritage value and extend approximately five kilometres upstream from the river mouth.

• Lara subcatchment, comprises a wide range of land uses and extends from the Lara township south towards Limeburners Bay and Corio Bay (Very Highly valued receiving environments). The Moderate to High Riparian flora and habitat value is largely associated with Hovells Creek. A significant area of the marine and foreshore habitat comprises part of the Port Phillip (Western Shoreline) Ramsar Site, which contributes to its Very High rated values. The estuary of Hovells Creek is a designated area of aboriginal archaeological sensitivity, and is considered to be of Very High indigenous cultural heritage value. Point Lillias is also a site of Very High indigenous cultural heritage, due to middens and other sites of indigenous culture. The Very High recreational and visual amenity values, reflect the importance of Hovells Creek, Limeburners Bay and Corio Bay in the subcatchment. In addition, the waterways play a Highly valued role in conveying floodwaters and have a High impact on adjacent property values.

• Corio subcatchment predominantly consists of residential and industrial land use and comprises the most northern portion of Geelong. Whilst values within the subcatchment are limited, the receiving environment of Corio Bay is considered to be of Very High value.

• North Geelong subcatchment is a large linear subcatchment that extends from rural areas north of Anakie Road, through rural residential areas down to Cox Road, and encapsulates the urban suburbs of Norlane, Bell Post Hill, Bell Park and North Geelong. Cowies Creek is the major watercourse, which drains south easterly through the subcatchment towards the Very Highly valued receiving environment of Corio Bay.

• Rippleside subcatchment extends from Hamlyn Heights in the west, to the shores of Corio Bay at Rippleside and Drumcondra in the east (A Very Highly valued receiving environment). The subcatchment predominantly consists of medium density residential land use. Recreational Amenity value is High to Very High, while visual and landscape amenity is rated Very High. Flood conveyance value is High , which is typical of urbanised subcatchments and some residential properties afford excellent views, resulting in Very High property values.




• Geelong West is a small and narrow subcatchment of primarily residential land use that drains from McCurdy Road in the west to Cunningham Pier and Corio Bay in the east (which is of Very High receiving environment value). The marine and foreshore habitat is valued Moderate to High. The foreshore provides a range of High to Very Highly valued recreational activities and visual and landscape value is Very High due to the views. Very High tourism values are associated with Western Beach and Cunningham Pier along the foreshore region of this subcatchment.

• Newtown subcatchment is a well-established urban subcatchment located between Aberdeen Street and Swanston Street and drains into the adjacent Barwon River. The Barwon River drains into Reedy Lake, Hospital Swamp, Lake Connewarre and the Barwon River Estuary, which are Highly valued receiving environments. The riparian habitat value is considered to be High, as extensive areas of the Barwon River riparian zone has been revegetated. It is considered to have Very High recreational amenity value, due to the passive and active recreational pursuits undertaken along and on the Barwon River, which also has Very High visual and landscape amenity value. Additionally, the Barwon River plays a Highly valued role in conveying floodwaters.

• Eastern Beach is small subcatchment with a variety of land uses, extending from Eastern Beach to Stingaree Bay and draining into the adjacent, Very Highly valued receiving environment of Corio Bay. Extensive facilities and significant views along Eastern Beach foreshore contribute to the Very High recreational and visual and landscape amenity values, which in turn contributes to the Very High property and tourism values.

• Breakwater is a narrow subcatchment that is adjacent to the Barwon River (of Moderate to High in-stream and riparian habitat values) generally from Swanston Street down to the Reedy Lake conservation area. The Highly valued receiving environments include the Barwon River, Reedy Lake, Hospital Swamp, Lake Connewarre and the Barwon River Estuary. A High value rating for recreational amenity largely reflects the utilisation of the middle to upper reaches of the Barwon River, which also plays a Highly valued role in conveying floodwaters.

• Newcomb located adjacent to the Very Highly valued Corio Bay, comprises the most eastern portion Geelong, extending from Eastern Park to Point Henry. The marine and foreshore habitat values are Very High, predominantly due to the seagrass beds in the intertidal and immediate sub-tidal areas, and the habitat provided by Cheetham Saltworks. Flood conveyance is valued High due to significant flooding issues that have been identified.

• Reedy Lake is predominantly a rural subcatchment, which spans between the urban areas of Geelong and Leopold and drains entirely into the Ramsar listed Reedy Lake (of High to Very High in-stream and riparian habitat value) before continuing into the Highly valued receiving environments of the Barwon River, Hospital Swamp, Lake Connewarre and the Barwon River Estuary.

• Leopold is predominantly a rural subcatchment, which extends east from Point Henry towards the Clifton Springs subcatchment, and drains into the adjacent and Very Highly valued receiving environment of Corio Bay. The marine and foreshore habitat values in the subcatchment of Leopold are generally Very High, due to the seagrass beds in the intertidal and immediate sub-tidal areas, and, to a lesser extent, the habitat provided by the saltworks.




• Wallington is predominantly a rural subcatchment located adjacent to Lake Connewarre, extending from the Leopold Township south to the Ocean Grove Subcatchment. It has High to Very High in-stream and riparian habitat values, primarily due to the environmental significance of Lake Connewarre. The waterways that are located adjacent to residential houses provide High property value. The High to Very Highly valued receiving environments of the Barwon River and estuary reflect the significant environmental, amenity and economical value of these waterways located downstream in the Ocean Grove subcatchment.

• Clifton Springs is a large, predominantly rural subcatchment located on the northern side of the Bellarine Peninsula, which drains into Port Phillip, a receiving environment of Very High value. European heritage is of High value due to several areas of significance, the principle area being The Dell is a site of historic, aesthetic and social significance at a State level, as well as, the Clifton Springs Mineral Spa complex. The McLeods Waterholes are of Moderate to High heritage value for indigenous cultures. Lake Lorne, McLeods Waterholes and Port Phillip provide High visual amenity value. Residential properties located adjacent to the coastal foreshore afford significant views of Port Phillip that are of Very High economic value.

• Portarlington is a large, predominantly rural subcatchment that comprises the north eastern portion of the Bellarine Peninsula, which drains into the Very Highly valued receiving environment of Port Phillip. The High marine and foreshore habitat value in this subcatchment is primarily associated with Salt Lagoon, as it provides salt marsh, scrubland and lagoon habitat to a wide range of taxa and communities. The Very High property and tourism values reflect the Very High recreational and visual and landscape amenity associated with the foreshore region.

• Swan Bay is a very large and predominantly rural subcatchment located on the southeast portion of Bellarine Peninsula and drains into Port Phillip (a Very Highly valued receiving environment). It contains a number of waterways, including Swan Bay, Lake Victoria, Lonsdale Lakes, Begola Wetlands, Bonnyvale Wetlands, Kingston Estate Wetland and the Emily Street Sedimentation Basin, which are generally considered to have High in-stream and riparian habitat value, providing Moderate to High Visual and landscape amenity value. Flooding conveyance is rated High due to issues associated with Lake Victoria and Lonsdale Lakes. The immediate marine and foreshore habitat is of Very High value, primarily due to the environmental significance of the Swan Bay Marine Reserve. The High property value reflects the number of properties that are located adjacent to these waterways.

• Ocean Grove is a predominantly rural subcatchment that is located on the lower reaches of the Barwon River, and contains the Barwon River Estuary draining to Bass Strait (a Very Highly valued receiving environment). The in-stream and riparian flora and habitat values in the Ocean Grove subcatchment are considered to be High to Very High, primarily due to the importance of Salt Swamp, Lake Murtnaghurt and the Barwon River Estuary which are sites of international importance. In addition, marine and foreshore habitat rate Very High due to the internationally significant Barwon River Estuary and the relatively undisturbed foreshore reserve. Both recreation and visual and landscape amenity values are rated Very High. Property and tourism values are also rated as Very High. Flood conveyance is of High value to the flooding issues identified in the Barwon Township.

• Connewarre is a large subcatchment that is predominantly rural and located in the southwest portion of the municipality. The subcatchment drains east to Lake Connewarre and Hospital swamp (of High to Very High in-stream and riparian habitat value) via Armstrong Creek. The




receiving environments include the High to Very Highly valued Barwon River and estuary, which largely reflects the significant environmental, amenity and economical value of the downstream waterways in the Ocean Grove subcatchment.

• Waurn Ponds is a large subcatchment that contains a variety of land uses and extends from the western municipal boundary to the Barwon River. Recreational amenity in the subcatchment is rated High due to a range of water sports and open space pursuits undertaken within the Barwon River and along Waurn Ponds Creek. Due to the open spaces adjacent to Waurn Ponds Creek and the Barwon River, they are considered to provide Moderate to High visual and landscape amenity value. The Moderate to High flood conveyance value of Waurn Ponds Creek reflects the role it plays in providing flood protection to adjacent properties. The High value of the receiving environments, which includes the Barwon River, Hospital Swamp, Lake Connewarre and the Barwon River Estuary, reflects the environmental significance of the downstream waterways.

• Highton is a highly urbanised subcatchment located adjacent to the Barwon River (Highly valued receiving environment) in the western portion of Geelong. The High value of the in-stream and riparian habitat value highlights the environmental significance and revegetation works undertaken in the Buckley Falls Park area. The Very High recreational amenity and Very High visual amenity values along the Barwon River reflects the importance of the waterway to the community. The High flood conveyance value of the Barwon River suggests the important role it plays in providing flood protection to adjacent Very Highly valued properties.

• Fyansford subcatchment extends from the western municipal boundary to the confluence of the Barwon and Moorabool River. The Highly valued receiving environments, relates to the Barwon River, Hospital Swamp, Lake Connewarre and the Barwon River Estuary, highlight the significant environmental and amenity value of downstream subcatchments. Amenity values are rated Moderate to High because of the landscape features and recreation opportunities offered at Buckley Falls Park.

• Moorabool subcatchment is located in the western portion of Geelong and contains the Moorabool River. The subcatchment’s receiving environments include the Barwon River, Hospital Swamp, Lake Connewarre and the Barwon River Estuary, which are of High value and highlight the significant environmental amenity values associated with these downstream waterways.

• Anakie is dominated by rural land use and is located in the northwest portion of the municipality, stretching from the Brisbane Ranges in the north to Evans Road in the southeast. Environmental values have been diminished in the subcatchment due to adjacent agricultural activities.




4.4 What are the Key Stormwater Threats within the City of Greater Geelong?

Stormwater threats include land uses and activities, which generate pollutants or modify the natural flow regime that could potentially impact on receiving values. Threats are often related to major land uses and activities that occur within each subcatchment. Key stormwater threats within the City of Greater Geelong are summarised as follows, with threat types highlighted using bold text:

• Established Residential Land Use account for a significant portion of the urban areas within this municipality. Runoff from residential areas contains a range of pollutants, including elevated sediment, nutrient and litter loads. Impervious surfaces and formalised (piped) drainage systems deliver pollutants efficiently to the receiving environment. The ultimate area of established residential development is perceived to represent a High stormwater threat in Corio, North Geelong, Rippleside, Clifton Springs, Swan Bay, Waurn Ponds and Highton subcatchments, and a Moderate to High stormwater threat in Portarlington and Ocean Grove subcatchments.

• The Geelong Central Activity Area is the major commercial precinct in the municipality and is considered to be a High to Very High stormwater threat in the Geelong West subcatchment and High threat in the Eastern Beach subcatchment. Commercial Land Use Runoff is also perceived to be a High and Moderate to High stormwater threat in the Waurn Ponds and Clifton Springs subcatchments, respectively. Commercial areas typically have high proportions of imperviousness, and pollutant sources are associated with poor waste management (e.g. littering), deposition from vehicle movements and accumulation of sediments on paved surfaces.

• Runoff from Industrial Land Use Runoff in North Geelong poses a Very High stormwater threat, and a High to Very High stormwater threat in the Breakwater and Newcomb subcatchments. The subcatchments of Corio, Rippleside and Newtown also contain significant industrial areas, representing a High stormwater threat, and industrial land use in the Waurn Ponds subcatchment poses a Moderate to High threat. Runoff from industrial areas generate an array of stormwater pollutants, ranging from elevated sediment loads to hydrocarbons that can originate from poor waste management practices (eg. tipping oil into the stormwater system).

• Major Roads and Transport Corridors, such as the Princes Highway, convey high volumes of vehicles, which generate substantial sediment, litter and hydrocarbon loads. The North Geelong subcatchment contains a number of major roads, which represent a High to Very High stormwater threat. Other subcatchments that contain a significant area of transport corridors that pose High stormwater threats include Corio, Rippleside and Geelong West, while Lara, Newtown and Waurn Ponds pose Moderate to High stormwater threats.

• Land and Infrastructure Development particularly relates to elevated sediment loads, due to the clearance and disturbance of soils. Development is occurring throughout the municipality, with Lara, Ocean Grove, Drysdale/Clifton Springs, Mount Duneed and Wandana Heights earmarked as major growth areas. In accordance with this land and infrastructure development, the subcatchments of Lara, Waurn Ponds and Highton represent High stormwater threats, and Reedy Lake, Clifton Springs, Swan Bay and Ocean Grove subcatchments Moderate to High stormwater threats.

• Lot scale building site construction typically follows major subdivisional development. The environmental management of lot scale building sites is typically poor and results in litter and




sediments entering the stormwater system. Building Site Runoff is perceived to be a Moderate to High stormwater threat in the Lara, Swan Bay, Waurn Ponds and Highton subcatchments.

• Unstable and Degraded Waterways contribute elevated sediment loads that impacts upon the receiving environment, and can reduce the integrity and safety of the waterway. A number of urban stormwater outfalls are eroding the coastline in the Clifton Springs subcatchment, which represents a Very High stormwater threat.

• Agriculture Land Use Runoff can pose a significant threat, and is responsible for the export of high loads of nutrients to waterways. Agriculture is considered to be a Moderate to High threat in the subcatchments of You Yangs, Wallington, Swan Bay and Anakie.

• Septic and Sewer Leakage poses a threat in many areas of the municipality where aged septic and sewer infrastructure can leak significant bacteria and pathogen loads to receiving waterways. Sewer leakage represents a High to Very High stormwater threat in the Rippleside subcatchment and Septic and Sewer leakage represents a High to Very High threat in the Newcomb subcatchment.

• Major Docks and Wharfs facilities include Refinery Pier, Lascelles wharves, the Bulk Grain Pier and Corio Quay. Spillage can occur during the use of these facilities, which can result in pollutants contaminating the marine environment. In accordance with this, docks and wharfs facilities in the Corio and North Geelong subcatchments are considered to be High and Moderate to High threats, respectively.

• Aging Infrastructure installed at the turn of the last century, poses a threat in many areas of the municipality through pipe leakage and subsequent erosion leading to high sediment loads entering receiving waterways. In accordance with this, aging infrastructure in the Geelong West and Newtown subcatchments is considered to be a threat.




4.5 Priority Risk Issues

Considering the highest stormwater risks throughout the municipality and placing them in an order that reflected the importance ascribed to each issue, Council and the Project Working Group then derived the Priority Risk Management Issues (Table 4-2).

Table 4-2 Priority Risk Issues

Priority Management Issue Description/Comment

1 Sewer Leakage (Rippleside)

The aged sewage system within the Rippleside subcatchment has the potential to export high bacteria and pathogen loads to the stormwater system as a result of sewer overflow and illegal connections. This poses the greatest risk to recreational amenity and a risk to visual amenity, landscape amenity and property values within and adjacent to the Rippleside subcatchment.

2 Industrial Land Use Runoff (Newcomb)

Industrial land use in the Newcomb subcatchment includes a mixture of large heavy industry and medium mixed industry. In accordance with the typically poor waste management practices exhibited in the area, industrial land use runoff represents a risk to the receiving environment values of Corio Bay and the marine and foreshore habitat including important sea grass communities.

3 Industrial Land Use Runoff (North Geelong)

Runoff from industrial activities in North Geelong subcatchment represents a risk to the receiving environment values of Corio Bay.

4 Commercial Land Use Runoff (Geelong West and Eastern Beach)

Commercial areas in the Geelong West and Eastern Beach subcatchments comprise the majority of the Geelong CAA. Commercial land use runoff is anticipated to pose a risk to the receiving environment values and visual, landscape and recreational amenity values of the Geelong West subcatchment and recreational, visual and landscape amenity and tourism values of the Eastern Beach subcatchment.

5 Septic and Sewer Leakage (Newcomb)

Septic and sewer leakage has been identified as a priority management issue within the Newcomb subcatchment as the Moolap industrial area is not sewered. Without a sewer system, this area poses a risk to marine and foreshore habitat, which includes important sea grass communities located in Corio Bay.

6 Unstable and Degraded Waterways (Clifton Springs)

A number of urban stormwater outfalls are eroding the coastline at a significant rate. Ongoing erosion poses a risk to visual landscape amenity and property values.

7 Industrial Land Use Runoff (Breakwater)

The Breakwater subcatchment contains an area of well-established industrial land use including medium to heavy industries. Pollutants associated with poor waste management practices of industrial land use runoff in the Breakwater subcatchment pose a risk to the environmental and amenity values of the Barwon River.

8 Land and Infrastructure Development (Lara, Swan Bay, Highton, Waurn Ponds and Ocean Grove)

A number of areas throughout Geelong are undergoing residential and industrial development. This specifically relates to broad scale land use changes or infrastructure construction (ie. subdivisional scale). Major growth areas include Lara, Highton, Waurn Ponds and Ocean Grove. Land and infrastructure development can generate a range of stormwater threats associated with soil removal, earthworks and construction waste. The approach adopted for managing the stormwater impacts of land and infrastructure development will be similar for all subcatchments in Geelong.

9 Industrial Land Use Runoff (Newtown)

Runoff from industrial land uses has the potential to export high sediment, trace metal and hydrocarbon loads and pose a risk to the recreational amenity values of the Barwon River.




Table 4-2 Priority Risk Issues (continued)


10 Residential Land Use Runoff (Swan Bay)

Residential land use is located in the eastern portion of the Ocean Grove Township and in Point Lonsdale west of Fellows Road in this subcatchment. Whilst there are still some residential areas yet to be developed, residential land use is ultimately expected to pose a risk to marine and foreshore habitat values through the production of high pollutant loads.

11 Docks and Wharves (Corio)

Refinery Pier supports the oil refinery, while Lascelles wharves support the wire mill and fertiliser storage and distribution industry. There is a risk of occasional fertiliser and petroleum spillages impacting upon the receiving environment of Corio Bay.

12 Industrial Land Use Runoff (Rippleside)

Industrial land use is predominantly located in the north eastern region of the Rippleside subcatchment. A variety of well-established industries operate in this area, including warehousing, mechanical/engineering works, furniture production, and panel beaters. Runoff from this area poses a threat to the recreational amenity values and receiving environment of Corio Bay.

13 Residential Runoff (Rippleside)

The Rippleside subcatchment is dominated by medium density residential land use. As a result, residential land use runoff, poses a risk to recreational, visual and landscape amenity values with and adjacent to the catchment. It is likely that strategies developed in response to this issue will be (in part) applicable to other areas of the municipality.

14 Major Road Runoff (North Geelong and Geelong West)

Major road runoff has the potential to generate substantial sediment, litter and hydrocarbon loads in the North Geelong and Geelong West subcatchments and pose a risk to the receiving environment values of Corio Bay.

15 Building Site Runoff (Lara and Highton)

Building site activities typically generate significant litter and sediment loads, which have the potential to be exported to stormwater. Residential development is taking place at present in the Lara and Highton subcatchments, with other areas in the subcatchments likely to undergo development in the near future. These building site activities place at risk recreational, visual and landscape amenity values within the Lara and Highton subcatchments.

16 Residential Land Use Runoff (Waurn Ponds)

Residential Land Use runoff can generate significant litter and sediment load and is considered to represent a risk to the visual, landscape and recreational amenity of the Barwon River and Waurn Ponds Creek.

17 Industrial Land Use Runoff (Corio)

Runoff from industrial activities within the Corio subcatchment, poses a risk to the receiving environment of Corio Bay.

18 Residential Land Use Runoff (Ocean Grove)

Residential Land Use runoff, which can generate significant litter and sediment loads, is considered to represent a risk to tourism, marine and foreshore habitat values as well as recreational, visual and landscape amenity in the Ocean Grove subcatchment.

19 Residential Land Use Runoff (Portarlington)

Residential Land Use runoff, which can generate significant litter and sediment loads, is considered to represent risk to tourism, and recreational, visual and landscape amenity in the Portarlington subcatchment.

20 Aging Infrastructure (Geelong West and Newtown)

Aging Infrastructure can generate sediment loads within the drainage network collapse of pipes and influx of sediments. The condition of aging infrastructure in Geelong West and Newtown has specifically been identified as a potential problem and possible pollutant source for stormwater.

MANAGEMENT FRAMEWORK REVIEW 5-1



5 MANAGEMENT FRAMEWORK REVIEW

Council’s Management Framework is concerned with the way in which Council undertake it’s ‘day to day’ planning and management activities. This includes strategic planning, development assessment, infrastructure management, regulation and enforcement, coordination and communication with internal and external stakeholders. These activities have a direct and indirect bearing on achieving Best Practice in Stormwater Management.

An effective management framework will enable Council to manage stormwater proactively through its planning, coordination and regulatory roles. This will limit the need for retrospective management of stormwater threats that could have been avoided with a better management framework.

The following provides a summary of Geelong’s Management Framework and how it functions in relation to Stormwater Management. The Management Framework has been considered in relation to the following key aspects:

• Coordination and Communication;

• Referrals and the Approvals Process;

• Resourcing;

• Council Strategic and Regulatory Documentation;

• Regulation and enforcement; and

• Education.

5.1 Coordination and Communication

It is apparent that informal communication and coordination between different divisions and departments is more limited than it should be to achieve good stormwater management. Under the existing framework, decisions regarding referral of proposals are largely dependant on the diligence and judgement of Council officers. Internal communication largely operates in an informal (ad-hoc) manner with the determination of referrals being made with limited procedural guidelines.

The limited communication seems to be partly the result of the large emphasis placed on processing proposals and making decisions expediently to meet required targets of Council and statutory timeframes. This reduces the likelihood of officers seeking further information or clarification of issues through internal referrals, particularly where there are no clear requirements for these referrals.

The limited communication across divisions of Council and within departments makes it difficult for a holistic or Council-wide approach to problem solving and has contributed to situations where the opportunity to incorporate good stormwater management as part of development proposals has been missed.

Improved coordination will result in greater cross-pollination of ideas and improved decision-making to the benefit of good stormwater management and the overall improved functions of the Council.

There appears to be good communication between Council and external bodies such as Barwon Water, Corangamite Catchment Management Authority and the EPA. There is however some




confusion and overlap of responsibilities between these bodies and external communication would be further improved as a result of a clearly defined referrals process guiding officers that included a list of persons from these organisations and their responsibilities.

5.2 Referrals and the Approvals Process

Applications and approvals within Council relevant to stormwater management extend across many Council Divisions and are dealt with by a number of different Council officers. The largest numbers of approvals handled by Council are planning permit applications.

Council has the opportunity to consider stormwater management issues as part of applications for planning approvals on both large and small developments including infill (multi-unit) housing, land subdivisions and a wide range of development projects. Due to the deregulation of the building industry, Council currently has limited opportunity to provide input regarding stormwater management on many smaller developments and at a lot scale level (eg. following subdivision). As such, there are currently no “triggers” enabling the assessment of stormwater management issues unless planning permits are required for the development.

Opportunities for incorporating Best Practice Stormwater Management as part of development proposals lie primarily in the placement of conditions on planning approvals. The application of these conditions and review of planning/development approvals involves referral within Council to officers who have specific expertise.

There is a need for the establishment of a formal referral process to ensure consistently effective communication and coordination. A structured and well defined referral system would ensure that all relevant development approvals are referred to the appropriate expert officer of Council and would ensure that Stormwater Management issues are afforded the importance that the Council has placed on them as outlined in their statutory and strategic documentation (see section 5.4).

Guidelines to a referral process would be necessary to clarify when proposed developments should be referred for review, the timeframe for consideration, details required for response and who should be responsible for the assessment. These guidelines would need to ensure that any internal referrals would be integrated into the approvals process without adding to the time taken for Council consideration.

Improving Stormwater Management through the applications and approvals process is closely linked to the following management aspects, which are discussed in other areas of the Issues Paper:

• Coordination and communication within Council (5.1);

• The available strategic and regulatory documentation (5.4);

• Resource capacity and expertise (5.3);

• Regulation and enforcement (5.5) and

• Education (5.6).

Each of these aspects of Council’s operations needs to work effectively to achieve Best Practice in Stormwater Management.




5.3 Resources

The ability for Council to introduce good stormwater management practices is affected by the significant limitations in resource availability. In many areas of Council, there are insufficient personnel to meet the current workload, let alone the additional workload that an improved system of referrals would create. The areas that are most under-resourced include the consideration of drainage plans, the regulation and enforcement of planning permits and the maintenance of infrastructure.

In particular, it is evident that the resourcing of the regulatory areas of Council has not been a high priority and in many instances Council are not able to effectively fulfil their regulatory functions under statutory legislation such as the Planning and Environment Act.

As outlined, a referral system is required to ensure stormwater management issues can be effectively addressed. It is noted, however, that unless adequate resources are available to handle the existing and additional referrals, the system will remain ineffective. Without any consideration to resourcing, improvements in the referral system will simply add additional workload onto already under-resourced areas of the organisation.

As the Council structure includes a number of Divisions and Departments with responsibility for stormwater management, a number of options need to be looked at in relation to the most effective and efficient division of responsibilities and how to best resource the additional workload. Poor stormwater management practices on building sites is one area that could be addressed by extending the role and responsibilities of Local Laws officers to check and enforce breaches.

5.4 Council Strategic and Regulatory Documentation

Important documents and planning tools that are relevant to stormwater management include the Geelong Planning Scheme, City Plan (July 2001 – June 2004), Environmental Management Strategy, Local Laws, and various technical specifications and procedural guidelines.

The Environmental Management Strategy and Planning Scheme have clear objectives and strategies that provide the basis for incorporating Best Practice Stormwater Management. However, many Council Officers involved with the assessment of stormwater management issues have a limited knowledge of these objectives/strategies and consequently limited knowledge and understanding of the importance of stormwater management to the Council.

It is also considered important to introduce more specific provisions into the Planning Scheme to provide an improved link between the broader policy statements and the more specific provisions, such as local planning policies. This will ensure that officers and all sections of the community working with the Planning Scheme are more easily able to identify the importance of stormwater management issues and it will provide an improved emphasis on these issues that can then flow through to all relevant approvals of Council and will provide a strong statutory basis to require the incorporation of Best Practice in new developments.

It is clear that whilst Council technical specifications related to stormwater management exist, in most cases they are outdated and have limited relevance to current practices. In addition, staff are either not aware of them or have limited confidence in their content. A review of these documents with input from all relevant divisions of Council would provide significant improvements in




stormwater management and provide officers with a greater level of ownership and confidence in using these documents as a basis for their decision-making.

As outlined, the management framework review has highlighted a need for Council officers to undergo specific training and education that would ensure officers have a better understanding of the existing provisions of the Planning Scheme, Council policy documents and technical specifications and how these provisions/documents can be used to achieve Best Practice Stormwater Management.

5.5 Regulation and Enforcement

Enforcement of stormwater related issues falls across a number of divisions and departments, but in a number of areas of Council there is a significant lack of resources available. The limited resources available for these duties are evidence that enforcement has not been a priority of Council.

Planning permits include a number of standard conditions related to stormwater management. There is, however, an almost complete lack of resources available to follow up and check that these conditions are complied with. There is also no ‘system’ in place that requires the checking of compliance with permit conditions. The current practice is that regulation and enforcement of planning permit conditions are mostly the result of complaints (reactive). Some departments of Council are resourced to a level that provides for regular and proactive checking of compliance. An example of this is the Environmental Health Department that have regular checks of food premises, including stormwater management issues.

The preparation of additional specific stormwater controls (for example, in the planning scheme and as Local Laws) will assist with providing guidance for improved regulation and enforcement. In particular, Council officers have identified the lack of statutory mechanisms to prevent poor stormwater management on building sites as a major concern.

The development and application of local laws to target improved stormwater management would need to be accompanied by a commitment to resourcing their enforcement. Also, the Council officers involved in such enforcement would require appropriate training to ensure they are equipped to identify stormwater management issues and the options for their satisfactory resolution.

Whilst regulation and enforcement should not be seen as a primary mechanism for achieving Best Practice in stormwater management, the use of regulatory measures to ensure compliance with conditions of permit and good stormwater management practices is essential to demonstrate to the development industry and the community that Council are committed to ensuring compliance. This will also assist in the education of the community as to the importance of stormwater management and should result in a reduction of the more highly controversial and time consuming work associated with responding to complaints of breaches of permit conditions and poor stormwater management practices.

5.6 Education

As discussed above, improved understanding is required by Council officers and members of the public of the importance of Stormwater Management. This improved awareness would result in stormwater management issues being given a higher priority in decision-making and would result in less instances of poor stormwater management practices.




5.7 Summary of Key Management Framework Issues

The key management framework issues that need to be addressed in achieving Best Practice Management of Stormwater are summarised in Table 5-1. These issues have been prioritised following discussions with the stakeholder groups and will form the basis for the development of management strategies addressing management framework issues.

Table 5-1 Priority Management Framework Issues


1 Officer Education Council officers need to understand the importance of stormwater management to Council. In order to do this it will be necessary to develop their knowledge and understanding of stormwater management issues, the statutory controls and Council policy initiatives that are in place to address these issues.

2 Council Guidelines Council should review and update their guidelines and technical specifications to guide and assist with the assessment of stormwater management

3 Communication Council should provide for increased liaisons between Divisions and Departments, which will enable greater importance to be placed on stormwater management and will improve the consideration of stormwater management issues in the decision making process of Council.

4 Referral Process The referral process needs to be extended and more clearly defined, outlining roles, responsibilities and triggers for internal referrals.

5 Community Education The importance of stormwater management needs to be clearly understood by all elements of the Geelong community. An education process that explains the impacts of poor stormwater management practices on the receiving environment is needed. As is a resource that lists technical and personnel resources (both internal and external to Council).

6 Resources to Assess Stormwater Issues

An improved and extended referral system will only be able to effectively deal with stormwater management issues if there are sufficient resources available. There is a shortage of resources available to provide for stormwater management to be effectively incorporated as part of Council’s day-to-day operations.

7 Regulation and Enforcement Improved regulation and enforcement mechanisms and resources are required to ensure compliance with permit conditions, good stormwater management practices and to regulate polluters.

STORMWATER REUSE 6-1



6 STORMWATER REUSE

6.1 Overview

The City of Greater Geelong has finite water resources and increasingly they are coming under pressure to meet demands. In light of the pressures on supply, an overview of the opportunities to reuse stormwater was investigated. This investigation provided an assessment on water demands, resource capture, treatment, storage and supply, which coincided to make up reuse opportunities within the City of Greater Geelong.

• Demands considered for the City of Greater Geelong included, irrigation (macro and micro scale), domestic drinking water, toilet flushing water and industrial processes and cooling water.

• Water supply opportunities identified for the City of Greater Geelong included, roof water (domestic and industrial) and capturing stormwater.

• Treatment and distribution should be designed and managed in such a way as to consistently provide reuse water of the required quality and quantity. The nature of the end use dictates the quality of the water required and thus the treatment.

• Other issues examined when considering potential reuse opportunities included soil types and permeability, change in the receiving environment and any social implications and cost.

6.2 Feeding Demand

A number of reuse opportunities where a demand could be supplied by capture and storage of stormwater for reuse were identified and included:

Residential Demand Opportunities:

Collection of roof water on residential properties to be stored in rainwater tanks, appropriately treated (depending on the quality of the water and end use) and subsequently used for garden irrigation and/or toilet flushing, laundry and bathroom.

Collection of treated stormwater (such as via a gross pollutant trap), store in wetlands or urban lake and reused in open space areas, which can use non-potable water, but presently use potable reticulated water (water may require further treatment depending on the quality of the water and end use).

Industrial Demand Opportunities:

Collection of roof water, store in wetlands or urban lake and reuse in industries which can use non-potable water, but presently use large amounts of potable reticulated water (water may require further treatment depending on the quality of the water and end use).

Collection of treated stormwater (such as via a gross pollutant trap), store in wetlands or urban lake and reuse in industries which can use non-potable water, but presently use potable reticulated water (water may require further treatment depending on the quality of the water and end use).

STORMWATER REUSE 6-2



Open Space Irrigation Demand Opportunities:

Collection of treated stormwater (such as via a gross pollutant trap), storage in urban lake or wetland and reuse on open space throughout the municipality (water may require further treatment depending on the quality of the water and end use);

Collection of treated stormwater (such as via a gross pollutant trap), storage in urban lake or wetland and reuse on market gardens within the municipality (water may require further treatment depending on the quality of the water and end use);

Collection of treated stormwater (such as via a gross pollutant trap), storage in wetland and reuse to irrigate agricultural areas with the municipality (water may require further treatment depending on the quality of the water and end use).

6.3 City Of Greater Geelong’s Key Reuse Opportunities

Those key reuse opportunities which are considered to demand further consideration for implementation include the following:

Collection of house roof water in rainwater tanks for garden irrigation

The collection of roof water using rainwater tanks for gardening watering should be encouraged via the Greater Geelong Planning Scheme. Barwon Water’s offer to fully install tanks should immediately be encouraged to households. This is considered one of the City of Greater Geelong’s better opportunities for reuse because of the large demand gardening watering places on potable reticulated water at present and the high quality of water that would otherwise enter the stormwater drainage system.

Treatment and collection of stormwater for public open space irrigation

The treatment and collection of stormwater for irrigation of public open space has a great amount of potential within the City of Greater Geelong. There is a great demand for good quality water for irrigation within the municipality, particularly for golf courses. Treated water to fill storages like wetlands is an asset. The City of Greater Geelong should consider the value of this asset and price it accordingly.

New Developments

New developments should include water reuse such as the collection of stormwater in lakes and wetlands for subsequent reuse on gardens and open spaces. This should be encouraged via the Greater Geelong Planning Scheme.

WATER QUALITY MODELLING 7-3



7 WATER QUALITY MODELLING

7.1 Introduction

Stormwater quality modelling was performed to assess existing land use impacts, effectiveness of existing treatment measures and to assess new treatments recommended in the strategies. Pollutant assessments for total phosphorus (TP), total nitrogen (TN) and total suspended solids (TSS), have considered impacts associated with pollutant export from forty six subcatchments that discharge within the boundaries of the City of Greater Geelong under:

Undeveloped conditions;

Current conditions;

Structural treatment conditions, which comprise the implementation of structural treatment measures (i.e. artificial wetlands and sedimentation basin) under the current land use.

Pollutant export and wetland analyses were undertaken using the Cooperative Research Centre for Catchment Hydrology (CRCCH) Model for Urban Stormwater Conceptualisation (MUSIC). MUSIC was developed as a tool to simulate the performance of a range of stormwater management measures. This model does not include an assessment of gross pollutants.

7.2 Pollutant Export Results

• The amount of TP, TN and TSS pollutants presently entering the receiving environments of Corio Bay, Barwon River, Lake Connewarre, Reedy Lake and Hospital Swamp were very high and reinforced the importance of the Priority Management Issues in accordance not only with what was identified through the risk process, but also through the modelling.

• There was a striking difference between undeveloped conditions and developed conditions, with little mitigation of the pollutant loads when all current and recommended structural treatments measures from the strategies (i.e. artificial wetlands and sedimentation basin) were implemented in the model. However this does not include an assessment of gross pollutants.

7.3 Pollutant Export Conclusions

• The small difference in TP, TN and TSS loads under present and treated conditions, suggests that the implementation of these structural measures alone, would have very little impact on the TP, TN and TSS pollutant loads delivered to the City of Greater Geelong’s receiving environments. It should be noted that the non-structural measures and gross pollutants have not been taken into account in the modelling.

• The findings of pollutant export modelling indicate that under the current development and stormwater management regime it will be impossible to mitigate stormwater impacts to pre-development conditions.

• To move forward, the City of Greater Geelong needs to investigate means through the Planning Scheme to develop a series of planning conditions that will result in more sustainable development in the future. This can be achieved through measures such as Water Sensitive Urban Design (WSUD) and water reuse.

STORMWATER MANAGEMENT STRATEGIES 8-1



8 STORMWATER MANAGEMENT STRATEGIES

Management strategies have been derived to respond to Priority Stormwater Risk Issues and their threats (refer Section 4.4). Each management strategy is made up of a combination of specific management elements relating to either:

• Education and Awareness Programs;

• Source controls;

• Site specific strategies and plans;

• Non-structural treatments;

• Structural treatments;

• Information and data collection; and

• Regulation and enforcement.

The assessment and selection of different elements as part of each strategy involved a process of elimination and opportunity assessment that considered issues relating to cost effectiveness, spatial opportunities and constraints and Council’s ability to maintain each element. Volumes II and III provide a detailed discussion of the process and results of the management element screening process, element opportunity assessment and cost effectiveness analysis. The key objective in formulating Management Strategies is to define a combination of Management Element Opportunities that represent the best value for money in terms of providing the highest level of environmental management at the lowest cost.

Stormwater Management Strategies have been developed for each of the 20 Priority Stormwater Risk Issues to guide Council in managing stormwater throughout the municipality. Each strategy provides a balance of both structural and non-structural elements and is summarised in Table 6-1 to Table 6-20. The final selection of specific management elements will be at the discretion of Council. However, the strategy tables provide guidance in the types of measures that could be implemented to respond to the Priority Risk Issues.

Each strategy is preceded by a summary of the key elements of the strategy and its intent. Each specific element is presented in order of priority and includes a description and an estimate of costs (both established and recurrent). Established costs for structural measures have been derived from market values for purchase/construction and implementation of each device. Costs for non-structural measures are based on typical hourly rates and estimated time. Recurrent costs reflect maintenance or cleaning costs for structural measures and costs related to supporting continued programs for other elements.

A number of the elements are common to more than one strategy. This reflects the cross subsides that will occur with the implementation of these elements.

It is expected that many of the programs recommended here would be common to other municipalities and therefore generic management solutions could be applied. It is likely that the Victorian Stormwater Action Program will generate a number of solutions to generic stormwater issues over the next two years.




Table 8-1 Risk Management Strategy 1 – Sewer Overflow and Illegal Connections (Rippleside)

The strategy encompasses a wide range of tools and techniques to minimise sewer overflow and illegal connections in the Rippleside subcatchment, which threaten recreational amenity, visual/landscape amenity and property values

Approx Cost Action Number Action Code Management Action Description

Established Recurrent

Responsibility and

Assistance

Extent of Application

1 PRI1-EA-01 Initiate a program of Long Term Organisational Consultation between Council, Barwon Water and EPA. NA $2,500 CoGG, BW &

EPA Municipal

2 PRI1-EA-02 Media Releases to general community regarding illegal connections. $5,000 NA CoGG Local 3 PRI2-DC-02 Monitoring pathogens, nutrients and sediment, to quantify effectiveness of SWMP. $45,000 $22,500 CoGG Local

4 PRI1-BW-04 Hepner Place Interceptor Sewer - replacing 300m of 300mm RC sewer with 375mm. Capital

$100,000 BW

NA BW Local

5 PRI1-BW-05 Diversion sewer along Church Street - constructing 400m of new 300mm sewer to the Outfall Sewer.

Capital $200,000

BW NA BW Local

6 PRI1-BW-06 Re-diverting sewer flows at key locations in Rippleside Catchment. Refer to BW for specific locations.

Capital $10,000

BW NA BW Local

7 PRI1-BW-07 Sealing Manholes – in Geelong Golf Course and near the intersection of Ballarat Road and Ebden Street. $5,000 NA BW Local

8 PRI1-BW-08 Smoke Testing – residential households (5 households/yr – BW pers comm) NA $150 BW Local 9 PRI1-BW-09 Man Hole Checking – to identify deteriorated seals (200 manholes/yr – BW pers comm) NA $600 BW Local 10 PRI1-BW-10 Man Hole Seal Replacement – replacing deteriorated seals (assuming 4 seals) NA $2,500 BW Local

11 PRI1-BW-11 Monitoring – strategically spot sampling stormwater drains (assuming 4 samples/6 events/yr) NA $600 BW Local

Total $365,000 $28,850




Table 8-2 Risk Management Strategy 2 – Industrial Land Use Runoff (Newcomb)

This strategy responds to the risk of industrial land use runoff from the Newcomb subcatchment impacting on the receiving environment of Corio Bay and marine and foreshore habitat. This strategy focuses mainly on industry awareness of the stormwater issue in combination with site specific EMPs, audit and inspections and enforces infringement measures if required.



Responsibility and

Assistance


1 PRI2-EA-01

Develop Guideline/Brochure material - Developed in combination with Barwon Water and the EPA to encourage improved stormwater management via better waste management in Newcomb. Guidelines should show operators how to identify typical threats on industrial sites (eg. disposal of wastes, wash down of pavements), provide examples of good and bad management practices and ways of monitoring impacts. Example photographs and diagrams are important, along with posters that can be displayed in the workplace.

$20,000 $2,000 CoGG & EPA Municipal

2 PRI2-EA-02 Demonstration Project at two small industrial sites contrasting good and bad stormwater management practices. The demonstration project would need to be supported by explanatory literature and education program.

$10,000 $2,000 CoGG Local

3 PR12-RE-03 Infringement Fines and Notices –Develop rigorous protocols for the collection of evidence and reporting to EPA of offenders and polluters. Protocols would need to be supported by explanatory literature and an education program.

$5,000 NA CoGG Municipal

4 PRI2-EA-03 Individual and/or Organisation Consultation- Initiate a program of consultation with individual industrial operators in high-risk industries. Discuss Council’s SWMP and how they can assist by improving waste management and sediment control practices.

$10,000 $5,000 CoGG Local

5 PRI2-RE-02 Audit and inspection – Work with the EPA to complete an environmental audit of all industrial premises within the Newcomb subcatchment. Use the information to improve industry’s stormwater management measures.

$50,000 $2,000 CoGG Local

6 PRI2-SP-01 Produce a model EMP and pro-forma as well as provide on-call advice for assisting independent industries to develop their own EMP. $15,000 $5,000 CoGG Municipal

Total $110,000 $16,000




Table 8-3 Risk Management Strategy 3 – Industrial Land Use (North Geelong)

This strategy responds to the risk of industrial land use runoff from the North Geelong subcatchment impacting on the receiving environment of Corio Bay. This strategy focuses mainly on industry awareness of the stormwater issue in combination with site specific EMPs, audit and inspections and enforces infringement measures if required. The strategy’s recommended media releases will promote Council success. The structural treatment measure of two GPTs with an oil and grease interceptor has been selected as an “end of pipe” management element.



Responsibility and

Assistance


1 PRI3-EA-03 Long Term Individual and/ Organization Consultation - Initiate a program of consultation with individual industrial operators in high-risk industries. Discuss Council’s SWMP and how they can assist by improving waste management and sediment control practices.

$10,000 $5,000 CoGG Local

2 PRI3-EA-01

Literature/Guideline Development and Distribution- Guideline/brochure material could be developed to encourage improved stormwater management via better waste management in North Geelong. Guidelines should show operators how to identify typical threats on industrial sites (eg. disposal of wastes, wash down of pavements), provide examples of good and bad management practices and ways of monitoring impacts. Example photographs and diagrams are important, along with posters that can be displayed in the workplace.

(Cost covered in

PRI2-EA-01) $2,000 CoGG & EPA Municipal

3 PRI3-RE-03 Infringement Notification and Fines- Develop rigorous protocols for the collection of evidence and reporting to EPA of offenders and polluters. Protocols would need to be supported by explanatory literature and an education program.

(Cost covered in

PRI2-RE-03) NA CoGG & EPA Municipal

4 PRI3-EA-02 Media Release- Use the local print media to run a series of articles on Council’s SWMP and stormwater management initiatives. Celebrate success of industry stakeholder involvement and link with other strategies to demonstrate a holistic approach.


5 PRI3-RE-02 Audit and Inspection- Complete environmental audits of all industrial premises within the subcatchment and prepare a database. Use the information to improve industry’s stormwater management measures.

$70,000 $5,000 CoGG Local

6 PRI3-SP-01 Develop and Implement Site Specific EMPs- Produce a model EMP and pro-forma as well as provide on-call advice for assisting independent industries to develop their own EMP.

(Cost covered in

PRI2-SP-01) $5,000 CoGG Municipal

7 PRI3-ST- 03b Gross Pollutant trap with Oil and Grease Interceptor- 1350mm drainage outlet (b) entering Cowies Creek (west of Melbourne Road) (Figure 8-1).

Capital $280,000

CoGG $18,000 CoGG Local

8 PRI3-ST- 03c Gross Pollutant trap with Oil and Grease Interceptor- 750 mm drainage outlet (c) entering Cowies Creek near Morgan Street (Figure 8-1).

Capital $160,000





Table 8-4 Risk Management Strategy 3 – Industrial Land Use (North Geelong) (continued)

9 PRI3-ST- 03a Gross Pollutant trap with Oil and Grease Interceptor- 900 mm drainage outlet at Moorpanyal Park beach (Figure 8-1).

Capital $200,000


10 PRI3-SC-02 Roof Water Diversion- Identify existing industries that buy process water from Barwon Water and target those with large roof areas for potential water diversion and reuse. $10,000 NA CoGG Local

Total $740,000 $43,000




Figure 8-1 Proposed GPT locations for the North Geelong Subcatchment




Table 8-5 Risk Management Strategy 4 – Commercial Land Use Runoff (Geelong West and Eastern Beach) This strategy responds to the risk of commercial land use runoff from the subcatchments of Geelong West and Eastern Beach impacting on their receiving environment values and visual, landscape, recreational amenity and tourism values. This strategy focuses mainly on business owner awareness of the stormwater issue, due to the broad scale of the threat and enforces infringement measures if required. The structural treatment measure of a GPT with an oil and grease interceptor has been selected as an “end of pipe” management element.



Responsibility and

Assistance


1 PRI4-EA-04 Signage- Undertake ‘graphic’ kerb site stencilling in the CAA and Pakington Street area to highlight linkages with the receiving environment and improve community awareness of littering impacts.

$5,000 NA CoGG Local

2 PRI4-EA-03

Long term Individual/Organisation Consultation- Initiate a program of information exchange with targeted individual business owners. Discuss Council’s SWMP and how they can assist by improving key waste management practices. Coordinate with Environmental Health Officers.

NA $10,000 CoGG Local

3 PRI4-EA-02

Stormwater Management Education Workshops- Conduct a series of Stormwater Management Workshops for Council Officers, business owners and personnel. Undertake 5 half day workshops with an experienced facilitator. Workshops should start with presentation on stormwater management followed by a review of operations by workshop participants and demonstration of good housekeeping practices. Use local examples.


4 PRI4-EA-01

Literature/Guideline Development and Distribution- Develop literature for shopkeepers and proprietors in the Geelong CAA area regarding good waste management practices, and storage and control of waste for kerbside collection. This would include simple guidelines on storage of waste, along with photographic examples of good and bad storage practices. Existing guidelines from other municipalities and EPA could be utilised.

$10,000 $5,000 CoGG & EPA Municipal

5 PRI4-RE-01 Infringement Notification and Fines- Enhance the enforcement role of EHOs via further education and training, modifying Local Laws and working more effectively with the EPA. $15,000 NA CoGG & EPA Municipal

Total $40,000 $15,000




Table 8-6 Risk Management Strategy 5 – Septic and Sewer Leakage (Newcomb) This strategy responds to the risk of septic and sewer leakage from the Newcomb subcatchment impacting on the marine and foreshore habitat of Corio Bay. The strategy includes actions that will help Council mitigate threats before they emerge by requiring industry to develop their own site specific water management plans, with support through literature and guidelines and audit and inspection by Council Officers. Community education can be achieved through media releases. Management elements specifically target Council to liaise with Barwon Water to investigate opportunities for a permanent solution and seek VSAP funding.



Responsibility and

Assistance


1 PRI5-SP-01

Develop and implement a regional EMP- Coordinate with domestic Waste Water Management Plan being developed by Environmental Health to develop and implement a Moolap Precinct EMP for long term wastewater management. The Moolap Precinct EMP should be linked to the broader Geelong Domestic Waste Water Management Plan.

$15,000 NA CoGG Local/ Municipal

2 PRI5-EA-01 Literature/Guideline Development and Distribution- Adopt EPA of material to educate industries in the Moolap Industrial area regarding septic tank systems, their management and the impact they can have on the environment.

NA $2,000 CoGG & EPA Municipal

4 PRI5-RE- 01 Audit and Inspection- Initiate a program to audit and inspect the septic systems throughout the Moolap Industrial area to examine their performance. Focus on areas that pose a significant risk to nearby waterways first.


5 PRI5-EA-02 Long Term Individual and/or Organization Consultation- Work with Barwon Water to investigate opportunities for a permanent solution (i.e. sewer system) and to seek funding from VSAP to implement this.

$15,000 NA CoGG & Barwon Water Local

6 PRI5-EA-03 Media Release- Use local print media to run a series of articles on Council’s SWMP and stormwater management initiatives. NA $2,000 CoGG Municipal

Total $50,000 $4,000




Table 8-7 Risk Management Strategy 6 – Unstable and Degraded Waterways (Clifton Springs)

This strategy responds to the risk of unstable and degraded waterways in Clifton Springs from a number of urban stormwater outfalls that impact on visual landscape amenity and property values. Strategy development specifically targets Council to develop a Waterway Management Strategy, monitoring and education workshops for Council Officers, to ensure they adopt the most appropriate treatment and management measures. The strategy focuses mainly on the community’s awareness of the stormwater issue, due to the broad scale of threat. Community education can be achieved via a number of management actions, including education literature, signage, and liaison with the community and special interest groups.



Responsibility and

Assistance


1 PRI6-EA-02

Stormwater Management Education Workshops- Undertake four half-day workshops, involving training sessions and field visit to demonstrate the extent of local waterway degradation and geomorphology problems to Council Officers and provide them with insight into good design and management approaches.

$10,000 NA CoGG Municipality

2 PRI56-EA-03 Long Term Individual and/or Organization Consultation- Improve regularity of contact with waterway managers (ie. CMA) and land owners to ensure waterways are managed correctly and potential problems are identified at an early stage.

NA $5,000 CoGG Municipality

3 PRI6-EA-01

Literature/Guideline Development and Distribution- Development or adoption (i.e. Melbourne Water) of material to target Council staff involved in drainage design and/or waterway management and include a checklist for Council Officers to look for when out on site. It is important that Council Officers involved in planning and design of waterway management have good knowledge of best practice approaches and the sensitivities of particular waterways and geomorphology around the municipality.

$10,000 $5,000 CoGG & CMA Municipality

4 PRI6-SP-01 Regional Drainage Strategy Development- Develop a Regional Drainage Strategy to provide a coordinated and informed approach to total water cycle management in the Clifton Springs subcatchment.

$70,000 NA CoGG & CMA Local

6 PRI6-EA-05

Community and Special Interest Groups- Utilise existing groups in Clifton Springs by becoming more involved in regular liaison. Council should initiate this by holding a meeting with each group to present the Stormwater Management Plan and its relevance to each group. Ongoing involvement in regular meetings will then be important to report on implementation progress of the SWMP.

$5,000 $5,000 CoGG Local

7 PRI6-EA-04

Signage- Use signs at high visitation areas adjacent to waterways to highlight areas of degradation and control access. Signs should be installed along prominent coastal areas (Main Boat Launching Ramp, The Dell Picnic Area and Beacon Point Lookout), showing the linkage between activities in the catchment and downstream degradation of the waterways.

Capital $15,000 CoGG

NA CoGG Local

Total $110,000 $15,000




Table 8-8 Risk Management Strategy 7 – Industrial Land Use Runoff (Breakwater)

This strategy responds to the risk of industrial land use in the Breakwater subcatchment, which impacts the in-stream habitat, recreational amenity and receiving environment of the Barwon River. . Educational tools, such as guidelines and direct liaison with industries will improve stormwater pollution awareness and encourage industries to develop EMPs. Refining rigorous protocols for the collection of evidence and reporting to EPA will also improve the EPA’s ability to prosecute serial polluters. By identifying existing industries with the potential to have roof water diversions, helps to encourage its use. GPTs are suitable at a number of key locations within the drainage systems.



Responsibility and

Assistance


1 PRI7-EA-03 Individual and/ Organization Consultation- Initiate a program of consultation with individual

industrial operators in high-risk industries. Discuss Council’s SWMP and how they can assist by improving waste management and sediment control practices.


2

PRI7-EA-01 Literature/Guideline Development and Distribution- Guideline/brochure material could be developed to encourage improved stormwater management via better waste management in Breakwater. Guidelines should show operators how to identify typical threats on industrial sites (eg. disposal of wastes, wash down of pavements), provide examples of good and bad management practices and ways of monitoring impacts. Example photographs and diagrams are important, along with posters that can be displayed in the workplace.

(Costs covered in

PRI2-EA-01) $2,000 CoGG Municipal

3 PRI7-RE-03 Infringement Notification and Fines- Develop rigorous protocols for the collection of evidence

and reporting to EPA of offenders and polluters. Protocols would need to be supported by explanatory literature and an education program.

(Costs covered in

PRI2-RE-03) NA CoGG Municipal

4 PRI7-SP-01 Develop and Implement Site Specific EMPs- Produce a model EMP and pro-forma as well as

provide on-call advice for assisting independent industries to develop their own EMP. (Costs covered

in PRI2-SP-01)

$5,000 CoGG Local

5 PRI7-RE-02 Audit and Inspection- Complete environmental audits of all industrial premises within the

subcatchment and prepare a database. Use the information to improve industry’s stormwater management measures.

$50,000 $10,000 CoGG Local

6 PRI7-SC-02 Roof Water Diversion- Identify existing industries that buy process water from Barwon Water

and target those with large roof areas for potential roof water diversions, storage and reuse. (Costs covered

in PRI3-SC-02)

NA CoGG Local

7 PRI7-ST-04d Oil and Grease Interceptors- Incorporate with GPT (PRI2-ST-03d), at junction of 1200mm and

1275 mm RCP in southern Industrial estate near Boundary Road. Refer to Figure 8-2. Capital

$200,000 CoGG

$15,000 CoGG Local

8 PRI7-ST-04b Oil and Grease Interceptors- Incorporate with GPT (PRI2-ST-03b), 730 mm drainage outlet

near Factories Road. Refer to Figure 8-2. Capital

$100,000 CoGG

$8,000 CoGG Local

Total $360,000 $40,000




Figure 8-2 Recommended locations of GPTs with Oil and Grease Interceptors for the Breakwater subcatchment.




Table 8-9 Risk Management Strategy 8- Land and Infrastructure Development (Municipality)

This strategy responds to the risk of land and infrastructure development, which relate to broad scale land use changes or infrastructure construction, which are considered to impact on receiving environments. Educational tools, such as guidelines, signage, workshops, individual consultation and demonstration projects will improve stormwater pollution awareness and encourage industries to develop EMPs.



Responsibility and

Assistance


1

PRI8-EA-01 Literature/ Guideline Development & Distribution- Distribute VSAP and develop additional council specific educational literature and guidelines to major developers, outlining Council’s commitment to stormwater management, WSUD principals and expectations for planning and management during construction. Council could use relevant documents produced by regional authorities such as DOI and MAV.

$10,000 $2,000 CoGG and VSAP Municipal

2

PRI8-EA-02 Stormwater Management Education Workshops- Run a half-day seminar with invited representatives from major developers who are active in the municipality. Introduce the Stormwater Management Plan and outline Council’s new initiatives, commitments and expectations regarding stormwater management and WSUD principals. Seminar should include site visits.

$5,000 $2,000 CoGG Municipal

3

PRI8-EA-03 Demonstration Project- Encourage a prominent developer to undertake a demonstration project exhibiting Best Practice in construction site management (ie. sediment and erosion control, site planning and construction practices). Publicise demonstration project and organise a study tour with other developers and Council Staff. Involve the CMA and EPA.


4 PRI8-EA-04 Signage- Promote and advertise demonstration project with a sign. $2,000 NA CoGG Municipal

5

PRI8-EA-04 Individual Industry Consultation- Council should liaise with DOI, EPA, MAV and MWC to gather information on initiatives to improve development site management and sediment control practices. Many of the activities proposed under this strategy have been targeted in a VSAP application by Melbourne Water.

NA $2,000 CoGG Municipal

6

PRI8-SP-01 Develop and Implement Site Specific EMP’s- Council should develop guidelines that clearly highlight the requirements and regulations of Environmental Management Plans for substantial developments within the municipality. An EMP should be required as part of the application and should identify potential impacts of development, management actions for minimising impacts and processes for monitoring impacts during development. EMPs should consider flora, fauna, geomorphology, stormwater, flooding, air, noise and site contamination (where relevant).





Table 8-8 Risk Management Strategy 8- Land and Infrastructure Development (Municipality) (continued)

7

PRI8-SP-02 Site Specific Sediment and Erosion Control Plans- For all development applications Council should require development of a detailed sediment and erosion control plan. The plan should identify construction staging, control measures, monitoring regime (eg. visual inspection) and responsible individual (eg. site foreman). Plans should be in accordance with Council specifications and BPEM Guidelines.


Total $43,000 $6,000




Table 8-10 Risk Management Strategy 9– Industrial Land Use Runoff (Newtown)

The strategy responds to runoff from industrial land that impacts on recreational amenity values of the Barwon River. Educational tools, such as guidelines, workshops and direct liaison with industries will improve stormwater pollution awareness and encourage industries to develop EMPs. Refining rigorous protocols for the collection of evidence and reporting to EPA will also improve the EPA’s ability to prosecute serial polluters. By identifying existing industries with the potential to have roof water diversions, helps to encourage its use.



Responsibility and

Assistance



(Costs covered in

PRI2-SP-01) $5,000 CoGG Municipal

2 PRI9-EA-01

Literature/Guideline Development and Distribution- Guideline/brochure material could be developed to encourage improved stormwater management via better waste management in Newtown. Guidelines should show operators how to identify typical threats on industrial sites (eg. disposal of wastes, wash down of pavements), provide examples of good and bad management practices and ways of monitoring impacts. Example photographs and diagrams are important, along with posters that can be displayed in the workplace.

(Cost covered in PRI2-EA-01) $2,000 CoGG Municipal

3 PRI7-RE-02 Audit and Inspection- Complete environmental audits of all industrial premises within the subcatchment and prepare a database. The audit will include stormwater drainage. Use the information to improve industry’s stormwater management measures.

$50,000 $10,000 CoGG Local


(Costs covered in

PRI2-RE-03) NA CoGG Municipal

5 PRI9-SC-02 Roof Water Diversion- Identify existing industries that buy process water from Barwon Water and target those with large roof areas for potential roof water diversion and reuse.

(Costs covered in

PRI3-SC-02) NA CoGG Local

6 PRI9-EA-03

Long Term Individual and/ Organization Consultation- Initiate a program of consultation with individual industrial operators in high-risk industries. Discuss Council’s SWMP and how they can assist by improving waste management and sediment control practices

$10,000 $2,500 CoGG Local

Total $60,000 $19,500




Table 8-11 Risk Management Strategy 10– Residential Land Use Runoff (Swan Bay)

This strategy responds to residential land use runoff in the Swan Bay subcatchment, which is considered to impact marine and foreshore habitat values. This strategy focuses mainly on raising the community’s awareness of stormwater issues, due to the broad scale of the threat. Community education can be achieved via a number of management actions, including education literature, media releases, signage and liaison with Waterwatch and Land care groups. The structural treatment measure, artificial wetland has been selected as an “end of pipe” management element.



Responsibility and

Assistance


1 PRI5-SC-01

Drainage Contribution Scheme- Develop a drainage contribution scheme strategy for the major growth area of Ocean Grove within the Swan Bay subcatchment, that addresses water quality, water volume and hydraulics including structural treatments and WSUD in all new areas.


2

PRI10-EA-04 Consultation with Community and Special Interest Groups- Utilize existing community groups and Waterwatch participants in Swan Bay by holding a meeting with each group to present the Stormwater Management Plan and its relevance to Waterwatch and each other Group. Ongoing involvement in regular meetings will then be important to report on implementation progress for the SWMP.

$5,000 $5,000 CoGG Local

3

PRI10-EA-01 Literature/Guideline Development and Distribution- Simple education literature could be developed targeting residents. The literature could highlight Council’s SWMP and policy in relation to stormwater management. The literature should provide tips for the public on how they can play a part in managing stormwater (include photos and examples). Existing literature should initially be sourced and considered.


4 PRI10-EA-03 Signage- Undertake ‘graphic’ kerb side stencilling in residential areas to highlight

linkages with the receiving environment and improve community awareness of littering impacts.


5 PRI10-EA-02 Media Release- Use local print media to run a series of articles on Council’s SWMP

and stormwater management initiatives. Celebrate success of community stakeholder involvement and link with other strategies to demonstrate a holistic approach.


6 PRI5-ST-01 Artificial Wetland/Treatment Train- Construct wetland located near Eccles Road in

Ocean Grove. Refer to Figure 8-3. This wetland would have to have a GPT for 1350 mm pipe and sedimentation in a treatment train.

Capital $300,000


Total $395,000 $22,000




Figure 8-3 Swan Bay proposed wetland/treatment train




Table 8-12 Risk Management Strategy 11- Docks and Wharves (Corio)

This strategy responds to the risk of the docks and wharves in the Corio subcatchment that impact upon the receiving environment of Corio Bay. The strategy that has been recommended includes actions that will help Council mitigate threats before they emerge through long-term individual and organisation consultation, audit and inspection and enforcement measures if required.



Responsibility and

Assistance


1 PRI11-EA-02

Long Term Individual and/ Organization Consultation- Initiate a formal consultation program with the managers and users of pier and berthing facilities in Corio. Consultation and liaison with those directly responsible for the management of these facilities will be important to gain a better understanding of the current management approaches and specific uses of the facilities. The relevant organisations that are responsible for management and use of the facilities also need to be made aware of Council’s SWMP and the potential risks that have been identified.

$10,000 $5,000 CoGG Local

2 PRI11-RE-01

Audit and Inspection- Undertake environmental audits of all dock and wharf facilities to more accurately identify specific risks associated with different activities and to provide a database for Council to monitor ongoing operations and changes in risk associated with changes in use of the different facilities.

$25,000 $5,000 CoGG Local


$5,000 NA CoGG & EPA Municipal

Total $40,000 $10,000




Table 8-13 Risk Management Strategy 12- Industrial Land Use Runoff (Rippleside)

The strategy responds to the risk of industrial land use runoff from the Rippleside subcatchment impacting on the recreational amenity and receiving environment of Corio Bay in accordance with the Rippleside Stormwater Management Plan.

Approx Cost Action Number

Action Code Management Action Description


Responsibility and

Assistance


1 PI3-ST-05 Incorporate an Oil and Grease Interceptor into the proposed Weddell Road GPT. Refer to GPT 5 Figure 8-4


$5,000 CoGG Local

2 PI3-EA-01 Literature/ Guideline Development & Distribution to encourage improved stormwater management via better waste management in industry. $5,000 $2,000 CoGG Municipal

3 PI3-RE-02 Audit and Inspect all industrial operations in the Rippleside Catchment. $25,000 NA CoGG Local 4 PI3-SS-02 Develop a Waste Management Program for the Rippleside Catchment industrial region. $50,000 $5,000 CoGG Local

5 PI3-ST-02 Install a 750mm dia. Gross Pollutant Trap near Weddell Road. Refer to Figure 8-4. Capital $55,000 CoGG

$5,000 CoGG Local

6 PI3-EA-02 Conduct Stormwater Management Education Workshops for industrial site operators and personnel. $5,000 NA CoGG Local

Total $160,000 $17,000



Figure 8-4 Location of Selected Structural Treatment Opportunities



Table 8-14 Risk Management Strategy 13- Residential Land Use Runoff (Rippleside)

The strategy responds to the risk of residential land use runoff from the Rippleside subcatchment impacting on the recreational, visual and landscape amenity within and adjacent to the subactchment in accordance with the Rippleside Stormwater Management Plan.

Approx Cost Action Number

Action Code Management Action Description


Responsibility and

Assistance


1 PI2-ST-03 Construct a Sedimentation Basin in the southern section of the Geelong Golf Course. Capital

$200,000 CoGG

$10,000 CoGG Local

2 PI2-ST-01 Construct Artificial Wetlands and a GPT in the northern section of the Geelong Golf Course.

Capital $400,000


3 PI2-EA-01 Literature/ Guideline Development & Distribution to residential areas outlining the Council’s SWMP and the responsibility of the public. $5,000 $3,000 CoGG

Entire

Municipality

4 PI2-EA-03 Media Releases to general community regarding the SWMP. $5,000 NA CoGG Entire

Municipality

5 PI2-EA-02 Demonstration Project showing direct consequences of poor waste management practices. $1,000 NA CoGG Local

6 PI2-EA-04 Signage at high visitation areas, such as Rippleside Park and Beach. Capital $1,500 CoGG

$200 CoGG Local

7 PI2-DC-02 Monitoring bacteria, nutrients and sediment, to quantify effectiveness of SWMP. $45,000 $22,500 CoGG Local

Total $657,500 $50,700



Table 8-15 Risk Management Issue 14 – Major Road Runoff (North Geelong and Geelong West)

This strategy responds to the risk of major road runoff in the North Geelong and Geelong West subcatchments that impact upon the receiving environment of Corio Bay. Management elements specifically target Council to liaise with VicRoads to review the design and EMPs of new infrastructure and augmentation of existing infrastructure to ensure they adopt water sensitive drainage systems by reviewing opportunities for retrofitting structural and non-structural treatments.



Responsibility and

Assistance


1

PRI14-EA-01 Long Term Organization Consultation- Develop formal liaison protocols with VicRoads to ensure that Council have referral opportunities for new infrastructure designs, augmentation to existing infrastructure and drainage system upgrades for components crossing transport corridors.

$2,000 $2,000

CoGG Municipal

2 PRI14-SP-01 Site Specific EMPs- Develop formal referral protocols with VicRoads to ensure that

Council are involved or consulted regarding development of EMPs for all road augmentations in their municipality.

NA $2,000 CoGG Municipal

3

PRI14-RE-01 Audit and Inspection- Seek VSAP funding for a pilot study that focuses on existing road drainage and reviews opportunities for retrofitting structural and non-structural treatments. The pilot study could focus on a short section of road and would include cost/benefit analysis for retrofitting and non-structural management options for road runoff in heavily developed (urbanised) areas.

$25,000 NA

CoGG Municipal

Total $27,000 $4,000



Table 8-16 Risk Management Strategy 15 – Building Site Runoff (Municipality)

This strategy responds to building site activities throughout the municipality. Building site development at a lot scale level generally follows major residential and industrial subdivision establishment. The impact of poor building site management is ongoing and cumulative, with a high degree of variability from site to site. Therefore, the strategy that has been recommended includes actions that will help Council mitigate threats before they emerge by requiring builders to improve practices and develop their own site specific management approach. Due to the deregulation of the building industry, successful building site management will require broad scale adoption of a consistent management approach at a regional level. It is therefore recommended that Council approach regional agencies (including the DOE, EPA, MAV and CCMA) before implementing any of the recommended actions.



Responsibility and

Assistance


1

PRI15-EA-01 Literature and Guidelines- Distribute guidelines that provide useful information on building site waste management practices, including photos and examples of good and bad waste management practices. Distribution should occur initially via industry groups or State Government (eg. BCC or DOI). Refer to current VSAP strategic project being undertaken by Melbourne Water. Guidelines could be sent out as part of an information kit with each development application.

NA $2,000

CoGG Municipal

2

PRI15-EA-02 Individual Industry Consultation- Council should liaise with DOI, EPA, MAV and CCMA to gather information on initiatives to improve building site waste management practices. Many of the activities proposed under this strategy have been targeted in a VSAP application by Melbourne Water.

NA $2,000

CoGG Municipal

3

PRI15-SP-01 Implement information- Implement ‘Protecting Stormwater Quality from Building and Construction Sites’. This information kit was developed as part of VSAP. It documents a number of Practice Notes for the management of building sites and has been developed specifically for local government. As part of this action Council will need to train staff with respect to the information kit and its application.

$15,000 $10,000

CoGG Municipal

4 PRI15-EA-04 Signage- Require signs to be placed at building sites as part of building permits. Signs should

outline builders’ obligations for on-site management during construction and provide contact details to report sites with poor waste management practices.


5 PRI15-RE-01 Empower EHOs to serve infringements regarding poor waste practices on building sites through

the development of specific protocols, possible modification of current local laws and processing procedures. This action should be coordinated with PRI15-SP-01.

$50,000 NA Council Municipal

Total $70,000 $18,000



Table 8-17 Risk Management Strategy 16- Residential Land Use Runoff (Waurn Ponds)

This strategy responds to residential land use runoff in the Waurn Ponds subcatchment that impacts upon the recreational amenity of the Barwon River and Waurn Ponds Creek. This strategy focuses mainly on raising the community’s awareness of stormwater issues, due to the broad scale of the threat. Community education can be achieved via a number of management actions, including education literature, media releases, signage and liaison with Waterwatch and Land care groups. As part of this strategy it is proposed to construct a GPT.



Responsibility and

Assistance


1 PRI16-EA-04

Demonstration Project- Promote through the development of promotion material the Living Green subdivision being developed by Deakin University as a demonstration project of improving stormwater management in residential areas to residential communities throughout CoGG.

$10,000 $2,000 CoGG & Deakin

University Municipal

2 PRI16-EA-01

Literature/Guideline Development and Distribution- Simple education literature could be developed targeting residents. The literature could highlight Council’s SWMP and policy in relation to stormwater management. The literature should provide tips for the public on how they can play a part in managing stormwater (include photos and examples). Existing literature should initially be sourced and considered.

(Costs covered in


3 PRI16-EA-02 Media Release- Use local print media to run a series of articles on Council’s SWMP and stormwater management initiatives. Celebrate success of community stakeholder involvement and link with other strategies to demonstrate a holistic approach.

(Costs covered in

PRI10-EA-02) NA CoGG Municipal

4 PRI16-ST-02 Gross Pollutant Trap- Install underground in-line Gross Pollutant Trap on 1525 mm drainage outlet, Refer to Figure 13-6.

Capital $150,000


5 PRI16-EA-03

Signage- Undertake ‘graphic’ kerb site stencilling in residential areas to highlight linkages with the receiving environment and improve community awareness of littering impacts. Signs should also be placed at key locations along the shared trail outlining Council’s initiatives with respect to improved stormwater management in the Waurn Ponds subcatchment and the connectivity between residents’ actions and impacts to the environment via stormwater.


6 PRI16-EA-05

Consultation with Community and Special Interest Groups- Utilise existing groups and Waterwatch Program participants in the Waurn Ponds subcatchment by becoming more involved in regular liaison. Council should initiate this by holding a meeting with each group to present the Stormwater Management Plan and its relevance to Waterwatch and each other Group. Ongoing involvement in regular meetings will then be important to report on implementation progress for the SWMP.

$5,000 $5,000 CoGG Local



Table 8-16 Risk Management Strategy 16- Residential Land Use Runoff (Waurn Ponds) (continued)

7 PRI16-SC-01

Drainage Management Strategy – develop a strategy to provide a coordinated and informed approach to total water cycle management in the Waurn Ponds subcatchment. This should consider hydrology, buffers to development, heritage, endangered species and water quality.


Total $245,000 $17,000



Figure 8-5 Waurn Ponds proposed GPT



Table 8-18 Risk Management Strategy – 17 Industrial Land Use Runoff (Corio)

This strategy responds to the risk of industrial land use runoff in the Corio subcatchment, which impacts the receiving environment of Corio Bay. Educational tools, such as guidelines, workshops and direct liaison with industries will improve stormwater pollution awareness and encourage industries to develop EMPs. Refining rigorous protocols for the collection of evidence and reporting to EPA will also improve the EPA’s ability to prosecute serial polluters. The identification of existing industries that buy process water from Barwon Water will target those with the potential for water diversions



Responsibility and

Assistance


1 PRI17-EA-01

Literature/Guideline Development and Distribution- Guideline/brochure material could be developed to encourage improved stormwater management via better waste management in Corio. Guidelines should show operators how to identify typical threats on industrial sites (eg. disposal of wastes, wash down of pavements), provide examples of good and bad management practices and ways of monitoring impacts. Example photographs and diagrams are important, along with posters that can be displayed in the workplace.

(Cost covered in PRI2-EA-01) $2,000 GoGG Municipal


(Costs covered in PRI2-SP-01) NA GoGG Local

3 PRI17-EA-02

Long Term Individual and/ Organization Consultation- Initiate a program of consultation with individual industrial operators in high-risk industries. Discuss Council’s SWMP and how they can assist by improving waste management and sediment control practices.

$10,000 $2,500 GoGG Local


(Costs covered in PRI2-RE-03) NA GoGG Municipal

5 PRI17-RE-02 Audit and Inspection- Complete environmental audits of all industrial premises within the subcatchment and prepare a database. Use the information to improve industry’s stormwater management measures.

$50,000 $10,000 GoGG Local

6 PRI17-SC-02 Roof Water Diversion- Identify existing industries that buy process water from Barwon Water and target those with large roof areas for potential roof water diversion and reuse.

(Costs covered in PRI3-SC-02) NA GoGG Local

Total $70,000 $14,500



Table 8-19 Risk Management Strategy 18- Residential Land Use Runoff (Ocean Grove)

This strategy responds to residential land use runoff in the Ocean Grove subcatchment, which is considered to impact upon tourism, marine and foreshore habitat and recreational, visual and landscape amenity. This strategy focuses entirely on the community’s awareness of the stormwater issues, due to the broad scale of the threat. Community education can be achieved via a number of management outcomes, including educational literature, media releases, liaison with Waterwatch and Landcare groups and the installation of signs at high visitation areas.



Responsibility and

Assistance


1

PRI18-EA-01 Literature/Guideline Development and Distribution- Simple education literature could be developed targeting residents. The literature could highlight Council’s SWMP and policy in relation to stormwater management. The literature should provide tips for the public on how they can play a part in managing stormwater (include photos and examples). Existing literature should initially be sourced and considered.

(Costs covered in


2

PRI18-EA-04 Consultation with Community and Special Interest Groups- Utilise existing groups and Waterwatch Program participants in the subcatchment by becoming more involved in regular liaison. Council should initiate this by holding a meeting with each group to present the Stormwater Management Plan and its relevance to Waterwatch and each other Group. Ongoing involvement in regular meetings will then be important to report on implementation progress for the SWMP.

$5,000 $5,000 CoGG Municpal

3 PRI18-EA-02 Media Release- Use local print media to run a series of articles on Council’s SWMP and

stormwater management initiatives. Celebrate success of community stakeholder involvement and link with other strategies to demonstrate a holistic approach.

(Costs covered in

PRI10- EA-02) NA CoGG Municipal

4

PRI18-EA-03 Signage- Undertake ‘graphic’ kerb side stencilling in residential areas to highlight linkages with the receiving environment and improve community awareness of littering impacts. Signs should also be placed at key locations along foreshore and the Terrace Shopping Centre.


Total $15,000 $7,000



Table 8-20 Priority Risk Issue 19- Residential Land Use Runoff (Portarlington)

This strategy responds to residential land use runoff in the Portarlington subcatchment, which is considered to impact on recreational, visual and landscape amenity. This strategy focuses mainly on raising the community’s awareness of stormwater issues, due to the broad scale of the threat. Community education can be achieved via a number of management actions, including education literature, media releases, signage and liaison with Waterwatch and Landcare groups. The strategy includes an artificial wetland to be constructed within the St Leonards Golf Course.



Responsibility and

Assistance


1 PRI19-EA-01

Literature/Guideline Development and Distribution- Simple education literature could be developed targeting residents. The literature could highlight Council’s SWMP and policy in relation to stormwater management. The literature should provide tips for the public on how they can play a part in managing stormwater (include photos and examples). Existing literature should initially be sourced and considered.

(Costs covered in PRI10-EA-

01)

$2,000 CoGG Municipal

2 PRI19-EA-04

Consultation with Community and Special Interest Groups- Utilise existing groups in the Portarlington subcatchment by becoming more involved in regular liaison. Council should initiate this by holding a meeting with each group to present the Stormwater Management Plan and its relevance to each group. Ongoing involvement in regular meetings will then be important to report on implementation progress for the SWMP.


3 PRI19-EA-02 Media Release- Use local print media to run a series of articles on Council’s SWMP and stormwater management initiatives. Celebrate success of community stakeholder involvement and link with other strategies to demonstrate a holistic approach.

(Costs covered in

PRI10- EA-02)

NA CoGG Municipal

4 PRI19-EA-03

Signage- Undertake ‘graphic’ kerb site stencilling in residential areas to highlight linkages with the receiving environment and improve community awareness of littering impacts. Signs should also be placed at key locations along the foreshore outlining Council’s initiatives with respect to improved stormwater management in the subcatchment and the connectivity between residents’ actions and impacts to the environment via stormwater.


5 PRI19-ST-02a

Gross Pollutant Trap- Install in-line Gross Pollutant Trap on 750 mm drainage outlet located near Sprout Street. Refer to Figure 13-7


$5,000 CoGG Local

6 PRI19-ST-02b Gross Pollutant Trap- Install in-line Gross Pollutant Trap on 750 mm drainage outlet located near Mercer Street. Refer to Figure 13-7.


$5,000 CoGG Local

Total $105,000 $17,000



Figure 8-6 Portarlington proposed GPTs



Table 8-21 Risk Management Strategy 20- Aging Infrastructure (Geelong West and Newtown)

This strategy responds to Aging Infrastructure in the Geelong West and Newtown subcatchments. This strategy focuses entirely on audit and inspection of drainage infrastructure to identify illegal connections and damaged stormwater pipes. This strategy is largely undefined due to a lack of information regarding the condition of the stormwater system. At the completion of the audit it is likely that a significant capital investment will be required to address issues raised in the audit.



Responsibility and

Assistance


1 PRI20-RE-02 Audit and Inspection- Undertake asset condition inspections of drainage infrastructures in older areas to collect suitable information to manage assets for replacement planning. $150,000 NA CoGG Municipality

Total $150,000

MANAGEMENT FRAMEWORK IMPROVEMENT STRATEGIES 9-1


9 MANAGEMENT FRAMEWORK IMPROVEMENT STRATEGIES

Based on the review of the City of Greater Geelong’s management framework, a number of recommendations have been made to incorporate stormwater management as part of Council’s planning and management activities. Volume II of the Stormwater Management Plan provides specific recommendations relating to individual elements of the management framework review. The following (Tables 7-1 to 7-8) provide details of the key recommendations.

Many of these recommendations can be implemented by modifying or improving existing Council management and planning practices. The order of the strategies has been prioritised based on a series of discussions with the Management Framework Advisory Group (MFAG). It would be expected that the completion of the actions outlined will take a considerable period of time (in the order of 10 years). Recommendations requiring modification of corporate documents (eg. the MSS) or the planning scheme should be implemented when opportunities arise as part of scheduled regular revisions.



Table 9-1 Management Framework Strategy 1 - Education Implementation & Cost Action

Number Management Action Description Internal Consultant

Comment

1 Instigate workshops/information sessions to launch the Stormwater Management Plan. Organise site visits for officers to demonstrate examples of positive and negative stormwater management techniques and outcomes. $500 $5,000 Consultant to facilitate workshop

2

Develop a training program relating to stormwater management within the City of Geelong. This program should be adaptable to new and existing staff and should ensure an understanding of the importance of stormwater management to Council and identify the Council statutory controls and policy initiatives in place to address these issues. It would be ideal for this training program to be able to be linked and coordinated with other programs, for example parts of it could be modified for use by various Council departments for use in educating the Geelong community and for use by other organisations such as Barwon Water and the EPA. The implementation of this action may be in two parts, with the program being introduced at the early stages of implementation of the SWMP and then updated and reintroduced once a number of the other strategies have been implemented

$2000 Much of this work may be able to be completed within Council



Table 9-2 Management Framework Strategy 2 - Council Guidelines Implementation & Cost Action


Comment

1

Review Greater Geelong Planning Scheme and modify to include more specific reference to stormwater. There are references to Stormwater Management in Council’s Local Planning Policy Framework (Clause 21) under Clause 21.11, Protection of catchments, waterways and groundwater. These references are general and do not provide Council Officers with adequate guidance in affording the principles of good stormwater management a higher priority. There should also be an additional section in Clause 22 (Local Planning Policy), which could relate to Stormwater Management alone or as part of a broader environmental policy.

$1000 The Strategic Planning section should undertake these actions with guidance from the Environment Department.

2 Review existing policy statements. Existing policies and strategic documents such as City Plan and the Environmental Management Strategy should be reviewed and updated to include specific reference to stormwater management and the Stormwater Management Plan. The amendments should ensure appropriate linkages between documents.

$1500 Work most appropriately conducted by Corporate Planning with guidance from Environment Department.

3

Introduce a new local law to provide control of the management of building sites. This local law will need to be linked to other planning controls, and the development industry and all sections of the community will need to be made aware of the introduction of this law. This could be achieved by introducing an information brochure to be widely circulated and be available at Council offices and other appropriate locations.

$500 $5,000 Will require internal review by local laws personnel as well as legal input.

4 Review the possibility of introducing a requirement to provide an Environmental Management Plan as part of certain planning permit applications. This plan would cover stormwater management and related issues of materials storage, waste management, litter control, use of water and fertilisers.

$1500 May also need legal advice.

5

Develop and introduce planning guidelines to clarify for officers the level of information that is necessary to be able to make an assessment on stormwater management issues. This document could also be linked to the training program (see strategy 1) and include information on the referral system (see strategy 4) highlighting the controls/guidelines in place to assist officers with dealing with stormwater management issues. It should include operational guidelines for certain service/works areas of Council including: Drainage maintenance, Parks, Workshops, Construction etc and utilise existing procedures such as LG Pro.

$5,000

This document would most appropriately be developed by the Statutory Planning Department in consultation with the Environment Department.

6

Review and update Council Engineering specifications. These specifications are outdated and do not reflect current practices. The review and adoption of new specifications must include input from all Divisions/Departments that use these specifications. This will provide greater certainty that they will be based on the working knowledge and expertise across the whole organisation and will therefore provide for all areas of Council to accept and have ownership of them.

$2000 A small Working Group could be established to review the documents and to coordinate input from officers.

7 Review planning permit conditions. Update existing standard planning permit conditions and introduce new conditions that relate to stormwater management. This action must link in with and take into account the other action recommendations such as the planning scheme and guideline changes.

$400 Coordinated primarily by the Drainage Engineer with guidance and input from the Statutory Planning Department.

8 Introduce referral guidelines. See strategy 4. $5,000 See strategy 4.



Table 9-3 Management Framework Strategy 3 – Communication Implementation & Cost Action


Comment

1 Review the Council organisational structure to fully understand the functions of each Division and Department, the relationships between them and the awareness of the overlap of responsibilities. This will enable Council to make informed decisions on how the structure can be modified to address stormwater management issues better.

$500 $10,000

As this action has a wide impact on many areas of Council an external consultant would be appropriate to undertake the task,

2 Provide an inventory of Council Officers, their expertise and position. Related to action one, above. This will enable Council to be fully informed and will assist in recommending any changes to role and function of positions to better address stormwater management.

$500 Could be undertaken in-house under auspices of Stormwater Coordinator (see strategy 6)

3

Prepare an inventory of external authorities, their positions and role/level of responsibility with stormwater management. Current relationship with regional authorities such as Barwon Water and the CCMA is reasonable, however, as there is some overlap of responsibilities, this inventory would be beneficial and will assist Council in the sharing of information and the coordination of joint actions.

$500 Coordinate by Stormwater Coordinator.

4 Provide regular meetings for cross-pollination of ideas on stormwater management. Current operations do not have any meeting at management level to discuss stormwater management. At officer level, communication across Divisions is limited; this will be enhanced by the introduction of the planning guidelines outlined in Strategy 2 and the referral actions outlined in Strategy 4.

Important to lift the profile of stormwater management and to ensure a coordinated approach to its management.



Table 9-4 Management Framework Strategy 4 - Referral Process Implementation & Cost Action


Comment

1

Establish a formal referral process. A structured and well defined formal referral process is required to identify which positions/officers are responsible for considering and responding to particular stormwater management issues. This referral process must be documented (in the form of a Council approved guideline) and must clearly identify the parameters for referral including the officer responsible, documentation to be included with the referral, timelines for response, flowchart of the referral process, options for response and requirements for acting on referral responses.

$2000

Responsibility for the coordination and implementation of this action would be with the Statutory Planning and Subdivision Departments.

2

Establish a coordination meeting. This meeting would take place fortnightly and would be composed of key Council officers from all relevant departments. The meeting would provide key Council staff with an opportunity to review new planning permit applications and determine whether their department should provide a comment. Prior to any meeting briefing notes with a prioritised agenda should be distributed. There are many advantages to this meeting include; allowing key Council staff to be aware of new applications at the earliest opportunity, providing for other departments to provide an immediate response to the planners (or to follow up with a more considered response in a short timeframe), allowing separate follow up of related issues (for example the Health Department can advise the applicant of the requirement to obtain a separate approval for food premises) and ensuring a highly professional coordinated approach of Council to stormwater and other planning issues.

This action could become part of the formal referral process outlined above.

3

Improve the list of planning permit applications that is circulated to all relevant departments. This list would best serve as a fallback for officers that are unable to attend the coordination meeting. The list must include adequate information to enable officers to understand the nature of the application and should include reference number, applicant details, summary of the type of application and officer responsible for the project.

List to continue to be prepared by Statutory Planning and Subdivision Departments.

4

Consider the appointment of a stormwater officer to assess stormwater management issues of all proposals. This could involve redefining the position description of an existing officer or the creation of a new position. Council should consider which Division of Council will be most appropriate and whether it is feasible for this position to include other related shared tasks (such as checking of compliance with planning permits).

Nil or-$40,000

This action is dependant on the results of the Council structure review process.

5

Review statutory planning permit requirements. As a result of the improved referral process and the amendments to the Planning Scheme, the Statutory Planning and Subdivision sections will be more empowered to address issues of stormwater management in their assessment of planning permit applications. For example Council could require the submission of Environmental Management Plans to accompany the planning application and the approved plans could form part of the planning approval.

$2000 To be coordinated by the Stormwater Coordinator.



Table 9-5 Management Framework Strategy 5 – Community Education Implementation & Cost Action


Comment

1

Develop an information brochure on stormwater management and circulate to developers, community groups, other authorities and interested groups. This brochure should clearly identify personnel within Council and within external authorities that are responsible for stormwater management (refer to strategy 3, action 1-3). This brochure should be linked with education material produced by the EPA and other authorities. Refer to chapter 17 for implementation of this material to optimise efficiencies with guideline material recommended in the reactive strategies.

$1000 This work would most appropriately be undertaken by the Environment Department.

2 Update Council education programs to include principles of stormwater management. Appropriate to link with recent work undertaken by Barwon Water and EPA. $500 Responsibility of Environment

Department.

3 Complete and release the Stormwater Education Manual to be linked to programs run by Waterwatch Vic. The Stormwater Education Manual will also be linked to Council, CCMA and Waste Wise Education Centre programs. $5,000 Environment Department.

4 Undertake an ongoing program of actions like drain stencilling in large regional shopping areas which should be linked to programs run by Waterwatch Vic. $5,000 Environment Department.



Table 9-6 Management Framework Strategy 6 – Resources Implementation & Cost Action


Comment

1 Appointment of a Stormwater Management Coordinator to be responsible for coordinating the implementation of all activities associated with the SWMP. $50,000

This position could be fulfilled by a reorganisation of positions or by the creation of a new position.

2

Appointment of an additional Drainage Engineer. This is essential for good stormwater management as this position is responsible for reviewing and responding to the largest number of referrals. The workload from the existing number of referrals is excessive for the current position to handle and the number of referrals will significantly increase as a result of the improved referral system recommended in priority strategy 4.

$40,000 This position could be fulfilled by a reorganisation of positions or by the creation of a new position.

3 Review of statutory and subdivision planning to provide resources for the checking of compliance with planning permits issued. Not possible to achieve Best Practice if limited/no resources provided for this task. It also means that these sections of Council are unable to fulfil their statutory obligations under the Planning and Environment Act. See priority management framework Strategy 7.

Dependant on review May be able to be achieved through a

reorganisation of roles.

4

Additional maintenance resources. It is evident that there is a significant under provision of personnel in the Infrastructure Operations Division to cope with the installation and maintenance of the increasing number of drains and drainage devises, particularly as a result of new subdivisions. Whilst any additional resource could be seen as an initial additional outlay, this resource would lead to a significant reduction in reactive work required (and therefore reduced cost) to clean blocked drains as a result of the current long time frames between checks/routine maintenance.

$190,000 (including

capital purchases)

It is understood that the provision of a Drainage Crew is listed as a high priority in the current budget review.

5 Appointment of a designated stormwater officer. This would be an alternative to providing an additional drainage engineer and would have a number of advantages including freeing the drainage engineer to concentrate on his other responsibilities and providing a dedicated position that would ensure that stormwater management is afforded a higher priority.

$40,000 dependant on review

Council will need to analyse the current resources available and the most cost efficient way for achieving Best Practice Stormwater Management.

6 Appointment of a designated enforcement officer to be providing a dedicated position that would ensure that stormwater management is afforded a higher priority. $40,000

This position could be fulfilled by a reorganisation of positions or by the creation of a new position.



Table 9-7 Management Framework Strategy 7 - Regulation and Enforcement Implementation & Cost Action


Comment

1

Establish a system for the checking of compliance with permit conditions. The limited resources (and commitment) to ensuring compliance limits regulation to responding to complaints (reactive actions). Applicants are currently unlikely to have a commitment to compliance due to their awareness of the lack of regulation. A strong regulatory presence is the only way to ensure compliance and to provide a high incentive for applicants/developers to automatically address stormwater management issues. This system should include provision for the proactive monitoring of developments under construction. Appropriate triggers to identify these active projects needs to be investigated (building permits, health approval applications, observations from field officers, etc).

Responsibility will depend on the results of the Council review. Suggested most appropriate for Statutory Planning or Local Laws.

2

Additional resources for statutory and subdivision planning to provide for regulation and enforcement. This may be the result of a reorganisation of Council positions. The cost of additional resources would be partly offset by the time savings associated with avoiding many protracted and expensive actions resulting from the current practice of limiting actions to complaints (reactive) as checking compliance (proactive investigations) will identify small problems before they become big problems.

Depends on results of review

Need to investigate the sharing of resources with sections of Council that have a high emphasis on fieldwork such as Local Laws and Health.

3 Introduce a Local Law to address stormwater management on building sites. This Local Law could be regulated through the Local Laws department and the duties of Local Laws field officers could be expanded to include investigation of building site and other stormwater management issues.

$1000

Most appropriate for Local Laws department, however, responsibility will depend on the findings of a number of other recommended strategies.

4

Ensure an environmental monitoring program is in place. Liaise with Barwon Water and EPA to ensure continuation of agency monitoring and Council access to such data. Link with community groups and seek access to data collected by such groups. Develop an internal monitoring system to establish the types and quantities of litter and rubbish entering the stormwater system. Work with the EPA and local industry to develop a co-ordinated reporting and response process to pollution incidents.

$500 Coordinate through the Environment Department.

5

Investigate the feasibility of introducing development levies/bonds for developments that place an additional load on infrastructure (particularly stormwater). This would need to be coordinated between the Statutory Planning and Subdivision Departments and would need to take into account the existing infrastructure fees paid as part of subdivision applications. These fees would offset the cost of additional inspections.

$500 $5,000 Legal advice required and coordination through the Statutory Planning Department.



Table 9-8 Management Framework Strategy 8 – Implementation Implementation & Cost Action


Comment

1

Defining Implementation Roles- Council should identify an individual within the organisation for the role of Stormwater Management Coordinator (SMC) that is responsible for coordinating stormwater management activities. The person in the position would be responsible for coordinating the implementation of specific actions associated with Risk Management Strategies and Management Framework Strategies. The person would be responsible to ensure stormwater doesn't impact on key assets, both natural & man-made & that the implementation program compliments other key strategies, of both Council & key stakeholders.

A Regional Planning Committee should be formed to oversee the progressive implementation of the Risk Management Strategies and Management Framework Strategies. The committee should be made up of a combination of internal Council Officers from different departments within Council and representatives from other relevant authorities (ie EPA, Barwon Water and CCMA). It is envisaged that the committee would meet on a monthly basis with the SMC to review progress on the implementation. The RPC would also report every 6 months to the Project Working Group (PWG) on implementation progress.

It is also recommended that the existing PWG be maintained throughout the implementation of the Plan to provide a review role for the activities of the SMC and RPC. It is important that the PWG provide continue input regarding the implementation of thePlan and are used to disseminate information regarding the implementation process.

$50,000 Responsibility for the coordination and implementation of this action would be with the Environment Department.

2

Optimising Implementation Efficiencies- Adopt and implementation approach that integrates various recommendations, rather than considering them in isolation. Consider opportunities for efficiencies such as the development of two or more literature and guidelines as part of one program, rather than undertaking each on separately. Opportunities exist for Council to coordinate a number of internal training programs recommended in various strategies depending on the timing of implementation. Planning scheme amendments should occur together as part of a single review. In addition there are a number of generic strategy elements across strategies that target the same threat (i.e. most strategies targeting the threat of Industrial Land Use Runoff recommended to produce as model EMP pro-forma). Many of these opportunities for efficiencies are identified in more detail in Chapter 17. Council should use the SWMP strategies as a basis for defining new roles and undertake a review of the current organisation to utilise excess capacity that exists within other departments.

$20,000

Responsibility for the coordination and implementation of this action would be with the Stormwater Management Coordinator and the Regional Planning Committee.

3 Prioritising Implementation- Develop a SWMP Implementation Plan through identification of responsibilities and priorities. $5,000 - $10,000


4 Identify a rationalised set of actions- Identify actions that can be rationalised through identifying overlapping actions and efficiencies, resource requirements and priority actions. This will require the consideration of strategy element feasibility, reliance on external funding, available budget and available resources.

$5,000 - $10,000


5 Funding- Council needs to liaise with external funding opportunities such as National Action Program Funding via the CCMA, Victorian Stormwater Action Program (VSAP) and Cleaning Our Waterways Industry Partnership Program that falls under the Commonwealth’s Living Cities Program.

$2,000




Table 9-8 Management Framework Strategy 8 – Implementation (continued)

6

Monitoring and Evaluation- Develop a monitoring and review program guidelines, with regard to best practice, of strategy elements whether they be structural or non-structural, that provides a basis to guide council in the monitoring of stormwater management activities. This will require the collation of available information on Best Practice Monitoring and Review Programs as they relate to Stormwater Management Plans. Information should include the CRCCH Technical Report ‘The Value of Non-Structural Stormwater Quality Best Management Practices’. The following elements should be included: Structural, Non-Structural, Water Quality Monitoring, Community Satisfaction and Stormwater Management Measures. Guidelines need to be also applicable to the monitoring and review of future elements not considered yet as priority issues and appropriate strategies change over time.

$5,000 - $10,000

Responsibility for the coordination and implementation of this action would be with the Environment Department.

SWMP IMPLEMENTATION AND REVIEW 10-11



10 SWMP IMPLEMENTATION AND REVIEW

The ultimate effectiveness of this Stormwater Management Plan will be dependent on Council’s ability to implement the recommendations of the plan and progressively review its effectiveness. A suggested framework for the implementation of the plan is provided along with guidance on how Council can consistently review its effectiveness.

10.1 Implementation Approach

It is important that the implementation approach reflects the nature of recommendations made in the Plan and builds on the commitment, which has already been achieved from key stakeholders involved in the development of the Plan (ie. both internal and external to Council).

To enable this to occur, roles and responsibilities need to be clearly defined in accordance with Action Number One in Management Framework Strategy 8. The individual and group roles included a Stormwater Management Coordinator (SMC), Regional Planning Committee (RPC) and Project Working Group (PWG).

10.2 Implementation Monitoring and Review Process

As part of the development of a detailed implementation schedule, Council should identify specific milestones and objectives that enable benchmarking and review of the implementation process. These milestones should relate to:

• achieving improvements in specific receiving values which are currently threatened; and/or

• reductions in specific risks.

The identification of these milestones should reflect the priority of the specific risk.

The performance of the Stormwater Management Plan in achieving its objectives should be assessed as part of a review of specific risks. This review should consider:

• changes to the magnitude and exposure of specific threats in accordance with the implementation of management measures; and

• improvements to the quality of receiving values associated with implementation of management measures.

As part of Council’s Environmental Management Strategy, Council produces a State of the Environment Report every two years addressing changes in the environmental condition of the municipality. It is therefore recommended that the review of the SWMP implementation be a part of this report. This will require the development of monitoring and review program guidelines as recommended in Action Number Six in Management Framework Strategy Eight.

SWMP IMPLEMENTATION AND REVIEW 10-12



10.3 Funding and Budget Allocation

The successful implementation of the City of Greater Geelong Stormwater Management Plan will require a substantial funding commitment from Council. However, a number of funding sources are available that may provide financial assistance to Council to expedite implementation of the Plan.

Known funding sources are summarised as follows:

• National Action Program Funding – the Federal Government has allocated a significant amount of funding for land and water management, with a specific focus on areas affected by salinity. The Corangamite Catchment Management Authority has been allocated part of this funding for land and water management activities within their region. Council should discuss opportunities for access to this funding to implement components of the stormwater management plan that are consistent with the intent of the funds available.

• Cleaning Our Waterways Industry Partnership Program – this falls under the Commonwealth’s Living Cities Program and provides funding for partnerships with industry aimed at improving waste and stormwater management of industry that lead to improvements in receiving waterways.

• Victorian Stormwater Action Program (VSAP) – VSAP offers one to one funding of projects that are recommended in accordance with an approved Stormwater Management Plan. The final round of funding submissions are due in the latter half of the year (2002).

CONCLUSIONS 11-1



11 CONCLUSIONS

The City of Greater Geelong’s Stormwater Management Plan provides a basis for Council to manage stormwater using Best Practice and protect the community’s enjoyment of the region’s natural and built assets. The plan establishes Council’s objectives for improving stormwater quality by clearly defining the beneficial uses that are valued by the community. In addition, the Stormwater Management Plan provides a sound basis for Council to apply and secure funding from external sources (eg. the Victorian Stormwater Action Program) for implementation of the various strategies recommended in the Plan.

The Stormwater Management Plan has been developed with the involvement of a Project Steering Committee, Project Working Group and Management Framework Advisory Group. In this regard, the Plan has been developed to reflect the specific requirements of Council and the practical implications of applying the various strategies and recommendations. Council’s continued commitment to the implementation of the Plan will be critical to its success and final effectiveness.

While the Plan provides many reactive strategies and recommendations to address current stormwater threats, it also identifies many opportunities for Council to integrate practices throughout its day to day planning and management activities. Adoption of these recommendations, accompanied by ongoing reviews will help to secure the protection of receiving environmental values for years to come. The final success of the Plan relies of Council’s ability to embrace and implement its recommendations so that stormwater management becomes an integrated and seamless part of Council’s management framework.

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