North Sydney Zone Substation Redevelopment …/media/Files/Network/Network Projects...May 2012 North Sydney Zone Substation Redevelopment Construction Environmental Management Plan

May 2012

North Sydney Zone Substation Redevelopment

Construction Environmental Management Plan

energy 2U Alliance | North Sydney Zone Substation Redevelopment | Construction Environmental Management Plan

Version: N8603 – Rev F 8 May 2012

CONTENTS

1 Introduction 6

1.1 Alliance Overview 6

1.2 Project Overview 6

1.3 Purpose of the CEMP 7

1.4 Compliance with Conditions of Approval 8

1.5 Objectives of this CEMP 17

1.6 Document Control 18

2 Project Description 19

2.1 General Description of the Project 19

2.2 General Description of the Environment 19

2.3 Scope of Works 22

2.4 Site Facilities and Compound 22

2.5 Handling and Storage of Materials 22

2.6 Hours of Work 23

3 Structure and Responsibilities 25

3.1 Environmental Management System Overview 25

3.2 Project Organisational Structure 25

3.3 Project Responsibilities 27

3.4 Awareness and Training 29

4 Statutory Framework and Obligations 31

4.1 Legislative Compliance 31

4.2 Approvals, Licences, Permits 33

4.3 Consultation with Key Agencies, Stakeholders and Community 34

5 Environmental Risk Management 40

6 Environmental Management and Controls 41

6.1 Introduction 41

6.2 Visual Amenity 41

6.3 Noise and Vibration 42

6.4 Traffic and Access 42

6.5 Air Quality 42

6.6 Sustainability and Climate Change 44

6.7 Geology and Soils 45

6.8 Contamination 45



6.9 Water Quality and Hydrology 47

6.10 Socio-Economic 48

6.11 Waste Management 49

6.12 Heritage 51

6.13 Flora and Fauna 51

6.14 Community 53

6.15 Cumulative Impacts 53

7 Incident Management and Emergency Response 55

7.1 Introduction 55

7.2 Notification of Incidents 55

7.3 Recording Incidents in Cintellate 56

7.4 Pollution of Waterways 56

7.6 Emergency Contacts 56

7.7 External Communication and Complaints Handling 59

7.5 Recording inquiries and complaints 59

8 Compliance Monitoring 63

8.1 Environmental Audit Program 63

8.2 Environmental Inspections 63

8.3 Non-Conformance, Corrective and Preventative Action 63

8.4 Hold Point Register 64

Appendix A – Environmental Policy Statement

Appendix B – Construction Noise and Vibration Management Plan

Appendix C – Traffic Management Plan

Appendix D – Erosion and sediment Control Plan

Appendix E – Community Involvement Plan

Appendix F – Risk Assessment Matrix

Appendix G – Dewatering Protocol



List of Figures

Figure 2-1- Site Location and Surrounding Land Uses 20

Figure 2-2- Site Location and Surrounding Land Uses 21

Figure 3-1 - Project Organisational Structure 26

List of Tables

Table 1-1– Compliance with relevant Conditions of Approval 8

Table 1-2 – CEMP Objectives 17

Table 1-3 – List for CEMP Distribution Error! Bookmark not defined.

Table 3-1 – Contact Details for Key Personnel 29

Table 4-1- Approvals that may be required under NSW Legislation 33

Table 6-1 - Visual Amenity and Design 41

Table 6-2 – Air Quality 42

Table 6-3 – Sustainability and Climate Change 44

Table 6-4 - Contamination 46

Table 6-5 - Water Quality and Hydrological Management 47

Table 6-6 - Management of socio-economic impacts 49

Table 6-7 – Waste Management 49

Table 6-8 - Heritage 51

Table 6-9 – Flora and Fauna 53

Table 6-10 – Cumulative Impacts 53

Table 8-1 – Hold Point Register 64



1 INTRODUCTION

1.1 Alliance Overview Ausgrid1 (formerly EnergyAustralia) is one of Australia's largest energy service providers, delivering safe and reliable energy supply to its customers. The customer base ranges from rural communities to Australia's largest central business district. It includes residential and commercial, as well as industries such as mining, manufacturing, oil refining, shipping, aviation, light to heavy engineering and agriculture.

The EA distribution network covers a geographic region extending from Sydney to the Upper Hunter. The proposed works to be undertaken by the Energy2U Alliance under the Overflow Program of Works will include a program of turn-key 132kV/ 11kV, 66kV/ 11kV and 33kV/ 11kV zone substations and associated reticulation infrastructure to be delivered as multiple projects over a period of seven years. The North Sydney zone substation redevelopment is one of those projects.

1.2 Project Overview The North Sydney zone substation redevelopment project (North Sydney ZS project) comprises the construction, operation and maintenance of a new 132kV/11kV North Sydney zone substation at 3-11 Ward Street and the decommissioning and demolition of the existing North Sydney zone substation at 70-74 Berry Street. The proposed new substation will be constructed on a site immediately adjacent to the existing substation. The project activities covered by this CEMP include the construction of the new substation including associated trenching along Ward and Harnett Streets and a cable vault in Ward Street.

1.2.1 Construction Timing

The general timeframes for activities covered by this CEMP are outlined below:

Construction Activity Timing

Substation construction May 2011 – August 2012

Cable vault construction June 2011 – December 2012

Ward Street trenching and cabling June – September 2012

Harnett Street trenching and cabling July-August 2012

This construction timing will ensure compliance with Condition of Approval A4 by ensuring the physical works have substantially commenced within five years from the date on which the project was approved.

No work will commence onsite until this CEMP has been determined acceptable to Ausgrid and the Energy2U Alliance Project Manager, endorsed by the Environmental Representative (ER) and approved by the DPI.

1 EnergyAustralia’s network business officially changed its name to Ausgrid on 2 March 2011, following the NSW Government’s sale of EnergyAustralia’s retail business and brand.



1.2.2 Other Project Phases

The commissioning and decommissioning activities associated with the new and existing substations, as well as the demolition of the existing substation, are not covered by this CEMP and will be addressed in a separate document prepared by Ausgrid.

A Demolition Management Plan to address the demolition of the existing substation will be prepared prior to the commencement of demolition activities. The Demolition Management Plan and CEMP will be separate documents but together they will comprise the suite of project documentation for environmental management post-approval.

An Operation Environmental Management Plan (OEMP) will be prepared prior to the commencement of operation to detail the environmental management and control measures that will be implemented in associated with operational activities for the new substation. The OEMP will be a separate document to the construction environmental documentation and will not form part of the suite of documents prepared for the construction works.

The general timeframes for activities that are part of the project but not covered by this CEMP are outlined below:

Project Phase Timing

Commissioning of new substation June – November 2013

Decommissioning of existing substation January – March 2014

Demolition of existing substation April – June 2014

1.3 Purpose of the CEMP This CEMP details the environmental management and control measures which will be implemented to manage potential environmental impacts associated with the construction activities for the North Sydney ZS project. The CEMP presents actions, responsibilities, protocol, conformance, verification and containment activities to be followed by Energy2U staff and Contractors at all times during the construction phase of the North Sydney ZS project.

The mitigation and management measures detailed in this plan are required as a minimum to achieve compliance with the requirements of the conditions of the Major Project Approval. The project will be undertaken in accordance with the following project documentation:

• Major Project Application MP10_0092

• North Sydney Zone Substation Redevelopment Environmental Assessment, dated September 2010 and prepared by Energy2U Alliance

• North Sydney Zone Substation Redevelopment Preferred Project Report, dated December 2010 and prepared by the Energy2U Alliance

• Additional information on electro-magnetic field mitigation measures submitted to the Department of Planning and Infrastructure (DPI) by email on 12 April 2011

• Minister’s Conditions of Approval.

Successful implementation of this CEMP will ensure the Alliances' obligations are satisfied. In the event of an inconsistency between the conditions of the approval and any of the project documents listed above, the conditions of the approval will prevail to the extent of the inconsistency.

This CEMP should be read in conjunction with other North Sydney ZS project functional area plans, including:

• Construction Noise and Vibration Management Plan (CNVMP) – Appendix B



• Traffic Management Plan (TMP) – App endix C for substation and cable vault

• Erosion and Sediment Control Plan (ESCP) – App endix D

1.4 Compliance with Conditions of Approval This CEMP addresses the conditions detailed in the Major Project Approval [MP10_0092] issued by the DPI on 27 May 2011 and modified conditions on 26 August 2011. The relevant conditions addressed within the plan (i.e. those related to the construction of the proposed substation, trenching in Ward and Harnett Streets, and cable vault work) are presented in Table 1-1 below.

Table 1-1– Compliance with relevant Conditions of Approval

Condition Number

Detail Where Addressed in

this Plan

A4 This project approval shall lapse five years after the date on which it is granted, unless the Proponent has substantially commenced physical works on site.

Section 1.2.1

A5 To avoid any doubt, this approval does not authorise the installation of capacitor banks and associated air-core reactors in the new substation. Should these works be required in the future, they will require additional assessment and approval under the Act.

Section 2.1

A6 The Proponent shall ensure that all necessary licenses, permits and approvals required for the development of the project are obtained and maintained as required throughout the life of the project. No condition of this approval removes the obligation for the Proponent to obtain, renew or comply with such necessary licenses, permits or approvals. This shall include certification requirements in accordance with section 109R of the Act.

Table 4-1

A7 The Proponent may elect to construct the project in discrete work packages or stages. Where that occurs, these conditions of approval need only be complied with to the extent that they are relevant to that discrete work package or stage.

Section 1.2

B1 The Proponent shall ensure that the external façade of the new substation building is implemented consistent with the design drawings provided in the Preferred Project Report and as agreed to with Council’s design excellence panel, maximising the use of building materials and treatments which visually complement surrounding land use and which minimise visual intrusion to surrounding sensitive receptors.

Section 6.2

B2 The Proponent shall ensure that the new substation is designed such that all external lighting associated with the project is mounted, screened, and directed in such a manner so as not to create a nuisance to the surrounding environment, receptors and roadways. The lighting shall be the minimum level of illumination necessary and shall comply with AS 4282(INT) 1997 – Control of Obtrusive Effects of Outdoor Lighting.

Table 6-1, Section 6.2

B3 All works associated with the project that interface with public land (driveways, kerb and guttering, footpaths and stormwater drainage) shall be designed in consultation with and to meet the design standards and any reasonable requirement of the relevant authority (Council and/ or the RTA). All public roads disturbed or damaged as part of the project shall be designed and reconstructed in consultation with and to meet the design standards and any reasonable requirement of the relevant road authority (Council and/ or the RTA).

Table 8-1



Condition Number


this Plan

B4 Prior to the commencement of construction, the Proponent shall commission a suitably qualified expert to assess the existing condition of all private or public land (such as driveways or footpaths), which are proposed to be either directly disturbed or otherwise used during the construction of the project (such as for the maneuvering or parking of heavy vehicles or machinery and construction vehicular access). The dilapidation survey shall also assess the existing condition of all public roads, which are proposed to be either directly disturbed or otherwise used during the construction of the project, with the exception of any streets (i.e. Ward and Harnett) which are proposed to be reconstructed in their entirety as part of this project and separate related projects to be pursued under Part 5 of the Act. The pre-construction dilapidation survey for Berry Street may be undertaken subsequent to the commencement of construction of the project, however prior to the commencement of cable vault works at this location.

The Pre-Construction Dilapidation Report shall be prepared in consultation with relevant authorities (Council and/ or the RTA) and submitted to the Director-General prior to the commencement of construction (or construction of the relevant stage) clearly identifying any comments made by the relevant authority and how these would be addressed. The Proponent may, with the agreement of the Director-General submit separate Pre-Construction Dilapidation Reports, prior to the commencement of construction at the new substation site and prior to the commencement of construction (decommissioning and demolition) at the existing substation site.

Section 6.10 and Table 8-1

B5 Prior to the commencement of any construction activities, or as otherwise agreed by the Director-General, the Proponent shall nominate for the approval of the Director-General (with suitable documentation) a suitably qualified and experienced Environmental Representative(s) independent of the Environmental Assessment preparation, design, construction and operation personnel. The Proponent shall engage the Environmental Representative(s) for the duration of any construction activities. The Environmental Representative(s) shall:

a) oversee the implementation of all environmental management plans and monitoring programs required under this approval, and advise the Proponent upon the achievement of these plans/programs;

b) consider and advise the Proponent on its compliance obligations against all matters specified in the conditions of this approval and the Statement of Commitments as referred to under condition A1 of this approval, and any other relevant environmental approval, licence or permit required and obtained in relation to the project; and

c) have the authority and independence to recommend to the Proponent reasonable steps to be taken to avoid or minimise unintended or adverse environmental impacts, and, failing the effectiveness of such steps, to recommend to the Proponent that relevant activities are to be ceased as soon as reasonably practicable if there is a significant risk that an adverse impact on the environment will be likely to occur.

Section 3.3.2

B6 Prior to the commencement of construction, the Proponent shall develop and submit a Compliance Tracking Program to track compliance with the requirements of this approval, for the approval of the Director-General. The Program shall relate to both construction and operational stages of the project and shall include, but not necessarily be limited to:

a) provisions for periodic review of the compliance status of the project

Sections 8.1, 8.2 and 8.3



Condition Number


this Plan against the requirements of this approval, Statement of Commitments and relevant environmental approvals, licenses or permits required and obtained in relation to the project;

b) provisions for periodic reporting of compliance status against the requirements of this approval and Statement of Commitments to the Director-General including at least one month prior to the commencement of construction and operation of the project;

c) a program for independent environmental auditing in accordance with AS/NZ ISO 19011:2003 - Guidelines for Quality and/or Environmental Management Systems Auditing; and

d) mechanisms for rectifying any non-compliance identified during environmental auditing or review of compliance.

Nothing in this approval precludes the Proponent from submitting for the Director-General’s approval details of an existing compliance tracking system (or similar) administrated by the Proponent, subject to clear demonstration that the system addresses the requirements of condition B6.

B7

The Proponent shall prepare and implement a Construction Environmental Management Plan (CEMP) prior to the commencement of construction of the project to outline environmental management practices and procedures to be followed during construction of the project. The CEMP shall include, but not necessarily be limited to:

This plan

a) a description of all activities to be undertaken on the site during construction including an indication of stages of construction, where relevant;

Section 2.3

b) identification of the potential for cumulative impacts with other construction activities and measures and protocols to be put in place to minimise and manage cumulative impacts and/ or construction conflicts;

Section 6.15

c) a description of the statutory obligations that the Proponent is required to fulfill prior to and during construction including all relevant approvals, licenses and permits required and applicable key legislation and policies;

Section 4

d) evidence of consultation with relevant public authorities including Council, OEH and the RTA identifying how issues raised by these public authorities have been addressed in the plan;

Section 4.3 and

Appendix E

e) a description of the roles and responsibilities for all relevant employees involved in the construction of the project including relevant training and induction provisions for ensuring that all employees, contractors and sub-contractors are aware of their environmental and compliance obligations under these conditions of approval;

Section 3.3 and 3.4

f) an environmental risk analysis to identify the key environmental performance issues associated with the construction phase and details of how environmental performance would be monitored and managed to meet acceptable outcomes including what actions will be taken to address identified potential adverse environmental impacts. In particular, the following environmental performance

Section 5, Appendix F



Condition Number


this Plan issues shall be addressed in the CEMP:

i) measures to monitor and manage noise and vibration impacts with consideration to cumulative impacts from surrounding development including:

i. identification of nearest sensitive receptors (including relevant residents along Walker Street and Berry Street) and relevant construction noise and vibration goals applicable;

ii. identification of all reasonable and feasible measures proposed to be implemented with the aim of achieving construction noise and vibration goals (including for construction traffic noise impacts and high noise generating activities). The mitigation measures proposed should be commensurate with the likely level of impact and risk of exceedence of relevant goals, associated with the relevant construction activity;

iii. a detailed strategy for assessing works outside of standard construction hours under Condition C6 including: justification for such works and alternatives considered, risk assessment procedure for identifying likely impacts at nearby receptors and circumstances under which an increasing range of reasonable and feasible mitigation measures would be considered (including respite period, offers of alternative accommodation or similar) and procedures for consultation with each receptor at which noise levels greater than relevant noise goals are identified to ensure that residents are aware of expected noise levels and available mitigation options (including opportunities for negotiated outcomes);

iv. measures for informing surrounding receptors of approved construction hours, upcoming high noise generating and vibration intensive works and works outside of standard hours;

v. measures for monitoring compliance with relevant noise, vibration and ground-borne noise goals including attendant monitoring for works on Sundays and any approved night works (airborne and ground borne noise, as relevant) and for vibration intensive works to determine minimum buffer distances and compliance with goals;

vi. measures for responding to complaints including notification of the Director-General; and

vii. contingency strategy in the case that project related vibration results in damage to surrounding buildings or structures (including pre-and post construction building dilapidation surveys, where necessary);

Appendix B

ii) measures to monitor and manage traffic impacts in consultation with relevant road authorities (Council and RTA, as relevant) including:

i. identification of construction traffic routes and traffic volumes along each route with measures to be taken to

Appendix C



Condition Number


this Plan minimise required traffic volumes;

ii. details of vehicle access, maneuverability and parking within the construction site (including at Harnett and Ward Street) consistent with AUSTROAD standards;

iii. details of roads closures and other traffic disruptions likely to occur considering road safety and level of service;

iv. specific measures for minimising traffic disruptions and delays including alternate routes during road closures; and

v. identification of all required pre-construction permits that have been obtained from relevant road authorities;

iii) measures to monitor and manage air quality emissions including dust/ exhaust emissions generated by construction related traffic and construction machinery;

Section 6.5

iv) measures to monitor and manage soil, water quality and geotechnical risks including erosion and sediment control, the identification and remediation of any contaminated land within the existing substation site, and the management of structural risks to Berry Street during the excavation of the cable vault (including submission of detailed design drawings and geotechnical reports to the RTA and measures for the monitoring of settlement impacts to Berry Street).

Section 6.7, 6.9 and Appendix D

v) measures for the appropriate management and disposal of waste generated at the site including spoil disposal and asbestos removal and appropriate testing and classification of waste;

Sections 6.11

vi) details of land restoration measures to be undertaken at the existing substation site upon completion of decommissioning and demolition works; and

Not covered by this plan.

Section 1.2.2

vii) details of emergency and contingency management; and Section 7.3

g) procedures for the periodic review and update of the CEMP as necessary.

The CEMP shall be submitted for the approval of the Director-General prior to the commencement of construction of the project or within such period as otherwise agreed by the Director-General. Construction shall not commence until written approval has been received from the Director-General. The Proponent may, with the agreement of the Director-General submit separate CEMPs, prior to the commencement of construction at the new substation site and prior to the commencement of construction (decommissioning and demolition) at the existing substation site.

Section 1.6 and 1.7

B8 Prior to the commencement of construction of the project, the Proponent shall ensure that the following are available for community complaints for the life of the project (including construction and operation):

a) a telephone number on which complaints about construction and operational activities at the site may be registered;

Section 7.4, 7.5 and Appendix E



Condition Number


this Plan b) a postal address to which written complaints may be sent; and

c) an email address to which electronic complaints may be transmitted.

The telephone number, postal address and email address shall be published in a newspaper circulating in the local area prior to the commencement of construction and prior to the commencement of operation of the project. The above details shall also be provided on the website required by condition B10 of this approval.

B9 Prior to the commencement of construction of the project, the Proponent shall ensure that a Complaints Register is in place to record the details of all complaints received through the means listed under condition B8 during construction or operation. The Register shall record, but not necessarily be limited to:

a) the date and time, where relevant, of the complaint;

b) the means by which the complaint was made (telephone, mail or email);

c) any personal details of the complainant that were provided, or if no details were provided, a note to that effect;

d) the nature of the complaint;

e) any action(s) taken by the Proponent in relation to the complaint, including any follow-up contact with the complainant and the timing for implementing action and details of the action being closed out; and

f) if no action was taken by the Proponent in relation to the complaint, the reason(s) why no action was taken.

The Complaints Register shall be made available for inspection by the Director-General upon request during the life of the project. The Complaints Register for the project may be incorporated into an existing complaints handling system managed by the Proponent if it is demonstrated to meet the requirements of condition B9.

Section 7.5

B10 Prior to the commencement of construction of the project, the Proponent shall establish a dedicated website or maintain dedicated pages within its existing website for the provision of electronic information associated with the project subject to confidentiality. The Proponent shall (subject to confidentiality) publish and maintain up-to-date information on this website or dedicated pages including, but not necessarily limited to:

a) information on the statutory context and current implementation status of the project;

b) the documents referred to under condition A1 of this approval;

c) a copy of this approval and any future modification to this approval;

d) a copy of each relevant environmental approval, licence or permit required and obtained in relation to the project;

e) all plans, monitoring programs and strategies required under this project approval; and

f) details of the outcomes of compliance reviews and audits of the project (as identified in the Compliance Tracking Program required under condition B6).

Appendix E

B11 Prior to the commencement of construction of the project, the Proponent Appendix E



Condition Number


this Plan shall prepare a Community and Stakeholder Engagement Plan for the approval of the Director-General which outlines measures for disseminating information on the development status of the project and methods for actively engaging with surrounding landowners and affected stakeholders regarding issues that would be of interest/ concern to them during the construction and operation of the project. This may include distribution of community newsletters, stakeholder meetings, community consultative committees and opportunities for site visits. The Plan shall include but not be limited to:

a) measures and procedures to work consultatively with surrounding landowners and development to minimise conflict with existing landuse, minimise and manage cumulative impacts (including conflict with other construction activities);

b) procedures to inform the local community of planned construction activities including construction traffic routes, potential traffic disruptions, high noise generating activities and works outside of normal construction hours; and

c) dispute resolution processes in case of disagreement between parties including provision for an independent arbitrator.

C1 The Proponent shall ensure that the vibration resulting from the construction of the project does not exceed the preferred values vibration (for low probability of adverse comment) presented in Assessing Vibration: A Technical Guideline (DECC, February 2006), at any nearest sensitive receptor.

Appendix B

C2 The Proponent shall ensure that all reasonable and feasible mitigation measures are implemented to ensure that any evening or night-time works undertaken as part of the project (as approved under condition C6) achieve the following (internal) ground-borne noise goals at nearest residential receptors, where ground-borne noise levels are higher than air-borne levels:

a) Evening (6pm to 10pm): LAeq (15min) 40 dB(A)

b) Night (10pm to 7am): LAeq (15 min) 35 dB(A)

App endix B

C3 The Proponent shall implement all reasonable and feasible measures to minimise noise generation from the construction of the project consistent with the requirements of the Interim Construction Noise Guideline (DECC, July 2009) including noise generated by construction traffic associated with the project and with a particular focus on high noise generating activities and works outside of standard construction hours (i.e. weekend and evening/night time works). In particular, the Proponent shall ensure that high noise generating works associated with cable vault installation are minimised as far as reasonable and feasible through the implementation of construction methods involving excavation beneath a concrete slab or open excavation with hoarding.

Appendix B

C4 With the exception of construction works associated with cable installation and the cable vault along Ward and Berry Streets as specified in condition C5, the Proponent shall only undertake construction activities associated with the project that would generate an audible noise at any sensitive receptor during the following hours:

Non-High Noise Generating Works

a) 7:00 am to 6:00 pm, Mondays to Fridays;

Section 2.6



Condition Number


this Plan b) 7:00am to 7:00pm Mondays to Fridays for concrete works;

c) 7:00am to 10:00pm Mondays to Fridays for concrete finishing works;

(Construction hours were modified by NSW DPI on 26 August 2011 to reflect that concrete works are permitted to continue to 7pm Monday to Friday, with concrete finishing works permitted until 10pm)

d) 8:00 am to 5:00 pm on Saturdays; and

e) at no time on Sundays or public holidays.

High Noise Generating Works (as identified in the CEMP)

a) 7am to 12.30 pm and 2.30 pm to 6pm, Monday to Fridays;

b) 8am to 12.00 pm and 1.00 pm to 5pm Saturdays; and

c) at no time on Sundays or public holidays.

This condition does not apply in the event of a direction from police or other relevant authority for safety reasons or emergency work to avoid the loss of lives, property and/or to prevent environmental harm.

C5 The Proponent shall only undertake construction activities associated with cable installation and the cable vault along Ward and Berry Streets that would generate an audible noise at any sensitive receptor during the following hours:


a) 7:00 am to 6:00 pm, Mondays to Fridays;

b) 8:00 am to 5:30 pm, Saturdays and Sundays; and

c) at no time on public holidays.


a) 7am to 12.30 pm and 2.30 pm to 6pm, Monday to Fridays;

b) 8am to 12.00 pm and 1.00 pm to 5.30 pm Saturdays and Sundays; and

c) at no time on public holidays.


Section 2.6

C6 The hours of construction hours specified under condition C4 and C5 of this approval may be varied with the prior written approval of the Director-General. Any request to alter the hours of construction specified under condition C4 and C5 shall be:

a) considered on a case-by-case basis;

b) accompanied by details of the nature and need for activities to be conducted during the varied construction hours including alternatives considered;

c) accompanied by details of the likely noise levels at nearest sensitive receptors with and without mitigation;

d) accompanied by details of all reasonable and feasible measures identified to minimise noise impact at nearest sensitive receptors;

Section 2.6



Condition Number


this Plan e) accompanied by details of consultation and notification undertaken

with surrounding receptors and where relevant written evidence of agreements entered into with receptors for works outside of standard construction hours; and

f) accompanied by written evidence demonstrating consultation with the OEH in relation to the proposed variation in construction times (including consideration of any comments made by the OEH).

C7 A report providing details of noise complaints received during weekend or evening/ night time works approved under conditions C4, C5 or C6 shall be submitted to the Director-General on a weekly basis identifying what action has been taken by the Proponent in response to the complaints and identifying complaints that remain unresolved. The Director-General has the right to revoke or amend the hours of work approved under conditions C4, C5 or C6 in response to ongoing or unresolved complaints.

Appendix B

C8 Except as may be expressly provided by an Environment Protection Licence for the project, the Proponent shall comply with section 120 of the Protection of the Environment Operations Act 1997 which prohibits the pollution of waters.

Section 6.9 and Appendix D

C9 Soil and water management measures consistent with Landcom’s Managing Urban Stormwater: Soils and Conservation shall be employed during the construction of the project for erosion and sediment control.

Sections 6.9 and Appendix D

C10 The Proponent shall construct the project in a manner that minimises dust emissions from the site, including wind-blown and traffic-generated dust. All activities on the site shall be undertaken with the objective of preventing visible emissions of dust from the site. Should such visible dust emissions occur at any time, the Proponent shall identify and implement all practicable dust mitigation measures, including cessation of relevant works, as appropriate, such that emissions of visible dust cease.

Section 6.5

C11 The Proponent shall not cause, permit or allow any waste generated outside the site to be received at the site for storage, treatment, processing, reprocessing, or disposal on the site, except as expressly permitted by a licence under the Protection of the Environment Operations Act 1997, if such a licence is required in relation to that waste.

Sections 4.1.3 and 6.11

C12 The Proponent shall maximise the reuse and/or recycling of waste materials generated on site as far as practicable, to minimise the need for treatment or disposal of those materials off site.

Section 6.11

C13 The Proponent shall ensure that all liquid and/or non-liquid waste generated on the site (including hazardous waste such as asbestos or contaminated soils) is assessed and classified in accordance with Waste Classification Guidelines (DECC, 2009), or any future guideline that may supersede that document and where removed from the site is only directed to a waste management facility lawfully permitted to accept the materials.

Section 6.11



1.5 Objectives of this CEMP The environmental objectives of this CEMP are summarised in Table 1-2 below:

Table 1-2 – CEMP Objectives

Objectives Targets Implementation and Planning

No environmental harm � Implementation of appropriate environmental controls

� 100% compliance with environmental procedures

� Compliance with CEMP

Installation and monitoring of environmental controls

Environmental reporting, auditing and recording

Awareness and education, review of documentation, auditing

Compliance with Environmental Legislation

� 100% compliance with all legal requirements

Review of Audit reports

Conformance with the CEMP

� Achieve targets set out in environmental management controls, sub-plans and checklists

� Environmental incidences and non-conformances reported and logged

� Corrective actions assigned and completed within designated time frame

Environmental monitoring / audits. Review of audit reports.

Review of Cintellate

Review environmental reports

Application of best practice environmental management

� Achieve 100% in all measurable outcomes identified in environmental management controls, sub-plans and checklists

Review of environmental performance

Appropriate management of environmental risks such as dust and noise

� Protection of the environment through implementation of appropriate training and induction

Review of training records

Outcomes of audits and checklists

Ensure commitments made to relevant stakeholders are implemented throughout construction

� Respond to all complaints within a four hour period

� Respect the community through implementation of the Community Involvement Plan (CIP) and proactive consultation

Review of complaints register

Auditing of CIP



Objectives Targets Implementation and Planning

Environmental training and awareness of all staff to ensure competence and compliance with management controls in CEMP

� Environmental inductions conducted

� Specific environmental training delivered by appropriately qualified personnel prior to construction work

Review of training records

Monitoring and auditing

Review environmental reports

1.6 Document Control and Review The CEMP will be entered in inCITE, the Alliance’s document recording and tracking system, and in the Alliance Intranet under “Management Plans”.

Where subcontractors’ environmental management plans and/or control measures are submitted to Energy2U, they will be treated as controlled documents and entered in inCITE.

Revisions to this CEMP may be required during the project to reflect changing circumstances or identified deficiencies. Revisions may result from:

• Management review;

• Audit (either internal or by external parties);

• Complaints or non-conformance reports;

• Changes to Leighton’s standard system;

• Changes in government legislation; and

• Amendments to the Minister’s Conditions of Approval.

Minor revisions will be endorsed by the ER, while major revisions will require review and endorsement by the ER and approval of DPI.



2 PROJECT DESCRIPTION

2.1 General Description of the Project Project approval has been granted for the construction, operation and maintenance of a new zone substation at North Sydney and the decommissioning and demolition of the existing North Sydney zone substation. The approval does not authorise the installation of capacitor banks and associated air-core reactors in the new substation. Should these works be required in the future, additional assessment will be required under the Environmental Planning and Assessment Act 1979.

The proposed substation will be constructed on a site located at 3-11 Ward Street, North Sydney and includes Lots 1, 1A, 2, 2A, 4, 4A and 5 in DP 24474, Lot 1 in DP 593976 and Lot 5A in DP 225770 (refer to Figure 2-1 ). The new substation will be constructed on a previously excavated parcel of land on the northern boundary of the existing substation, covering an area of approximately 1200 m2. The new substation site is zoned Mixed Use.

The construction activities covered under this CEMP include the construction of the new substation, trenching works in Ward and Harnett Streets, and excavation and construction of the cable vault. A Demolition Management Plan will be prepared separately to this CEMP to address demolition activities for the existing substation.

2.2 General Description of the Environment The project site is located in North Sydney between Berry, Ward and Harnett Streets in an area zoned as mixed use, which is part of the North Sydney CBD (refer to Figure 2-2 ). Ward Street is a small cul-de-sac located off Berry Street (a NSW Roads and Traffic Authority (RTA) managed State road), which provides access between the Pacific Highway and the Warringah Freeway. The project site also has a small frontage to Harnett Street along the northern boundary, which would be the main access to the site during the construction of the substation.

The project site is bound to the west by Ward Street and a multi-level Council owned car park, which is currently leased to Wilson Parking until 2020. The car park extends around the end of Ward Street to adjoin the northern boundary of the project site.

To the east, the project site immediately abuts a 22 storey residential building currently under construction at 138-142 Walker St, for which the construction duration extends beyond that of the substation.

To the south, the project site is bound by Berry Street. To the south east, the project site borders a 10 storey commercial building, which is located at 76 Berry Street. There is a restaurant (Bel Paese Ristorante) located on the ground floor at the northern end of this property.

North Sydney is located to the north of the Sydney Central Business District (CBD), across Sydney Harbour. It is a heavily urbanised environment with high density commercial and residential development. The project site is located entirely within the North Sydney Local Government Area (LGA).

There are few natural or environmental features that exist in the surrounding area and the closest green spaces are the North Sydney Community Centre, North Sydney Ridge Tennis Centre and St Leonards Park, located approximately 300 m, 400 m and 460 m from the site respectively. These parks are utilised as sporting and recreational facilities.

energy 2U Alliance | North Sydney Zone Substation Redevelopment | Construction Environmental Management Plan 20


Figure 2-1- Site Location and Surrounding Land Uses



Figure 2-2- Site Location and Surrounding Land Uses



2.3 Scope of Works The scope of works for the construction activities addressed in this CEMP is summarised below:

• Construction of a brick-clad substation building (to RL 94.550, which equates to 25 m above Ward Street and 29 m above Harnett Street at its highest point);

• Installation of an 11kV switchboard, located at the south eastern end of Level 3A (mezzanine);

• Installation of three 50 MVA 132/11kV low noise transformers, located in individual transformer bays at the Harnett Street level on the western boundary of the substation;

• Installation of 1600 Amp 132kV GIS, located at the north eastern end of Level 3;

• Installation of control and protection panels in the control room;

• Installation of auxiliary equipment for the transformers and substation, along the western boundary; and

• Installation of a cable vault and conduits in Ward Street and Harnett Street.

2.4 Site Facilities and Compound The site compound will be located within an undercroft, part of the Wilson car park, accessed via Harnett Street.

The site compound will incorporate the following requirements:

• Minimise nuisance to neighbours (e.g. the compound will be located on hard stand to minimise soil disturbance and dust generation);

• Vehicles can access the Work Zone and turn off road into compound guided by traffic controllers;

• Separate storage for fuels, chemicals and hazardous goods, inside bunded area(s);

• Fence compound as necessary for security; and

• Locate night time lighting to avoid nuisance to neighbours.

All site sheds and other facilities will present a neat appearance with safety signs erected as required. The site compound area will be regularly maintained and will be kept tidy and free of rubbish. Covered rubbish bins will be provided.

2.5 Handling and Storage of Materials Handling and storage of materials will be controlled in accordance with Leighton Procedure –“Transport, handle and store materials” (Document ID 15661176 Version 1.1).

When determining if project-specific methods are needed for handling and storage of materials, the Project Manager will include consideration of the potential environmental consequences if materials are handled or stored incorrectly (e.g. water quality impacts and noise constraints).

The Project Manager will ensure that manufacturer’s instructions / Material Safety Data Sheets (MSDS) for substances and materials are obtained and kept in the project safety management file which will be readily available to site personnel when needed.

Only small quantities of chemicals will be stored on site, as the tower crane is electric and refueling of large excavation equipment will be undertaken via small tankers. Any chemicals stored on site will be stored appropriately, including through the use of a purpose built hazardous material storage cupboard.



2.6 Hours of Work The construction hours will be as outlined under conditions C4, C5 and C6 in the Conditions of Approval that have been reproduced below. High noise generating works for this project referred to in the Conditions of Approval include jack hammering, rock hammering or rock breaking.

Construction hours were modified by NSW DPI on 26 August 2011 to reflect that concrete works are permitted to continue to 7pm Monday to Friday, with concrete finishing works permitted until 10pm.

Condition C4.

With the exception of construction works associated with cable installation and the cable vault along Ward and Berry Streets as specified in condition C5, the Proponent shall only undertake construction activities associated with the project that would generate an audible noise at any sensitive receptor during the following hours:


• 7:00 am to 6:00 pm, Mondays to Fridays;

• 7:00am to 7:00pm Mondays to Fridays for concrete works;

• 7:00am to 10:00pm Mondays to Fridays for concrete finishing works;

• 8:00 am to 5:00 pm on Saturdays; and

• at no time on Sundays or public holidays.

High Noise Generating Works

• 7am to 12.30 pm and 2.30 pm to 6pm, Monday to Fridays;

• 8am to 12.00 pm and 1.00 pm to 5pm Saturdays; and

• at no time on Sundays or public holidays.


Condition C5

The Proponent shall only undertake construction activities associated with cable installation and the cable vault along Ward and Berry Streets that would generate an audible noise at any sensitive receptor during the following hours:


• 7:00 am to 6:00 pm, Mondays to Fridays;

• 8:00 am to 5:30 pm, Saturdays and Sundays; and

• at no time on public holidays.

High Noise Generating Works



• 7am to 12.30 pm and 2.30 pm to 6pm, Monday to Fridays;

• 8am to 12.00 pm and 1.00 pm to 5.30 pm Saturdays and Sundays; and

• at no time on public holidays.


Condition C6

The hours of construction hours specified under condition C4 and C5 of this approval may be varied with the prior written approval of the Director-General. Any request to alter the hours of construction specified under condition C4 and C5 shall be:

a) considered on a case-by-case basis;

b) accompanied by details of the nature and need for activities to be conducted during the varied construction hours including alternatives considered;

c) accompanied by details of the likely noise levels at nearest sensitive receptors with and without mitigation;


e) accompanied by details of consultation and notification undertaken with surrounding receptors and where relevant written evidence of agreements entered into with receptors for works outside of standard construction hours; and




3 STRUCTURE AND RESPONSIBILITIES

3.1 Environmental Management System Overview The Energy2U Alliance is committed to achieving outstanding performance in relation to environmental management. To achieve this, the environment, community and all stakeholders will be respected in all that we do.

This CEMP has been prepared in accordance with the Energy2U Alliance Environmental Management System, Environmental Policy and the Conditions of Approval to be implemented by all members of the Energy2U Alliance. The Environmental Policy states that "the Energy2U Alliance is committed to environmental sustainability", which encompasses various environmental commitments including "the efficient use of energy and water, reduction of waste, recycling of materials and the prevention of pollution".

3.2 Project Organisational Structure The North Sydney ZS project will be supported by the Energy2U Alliance Management Team and other shared resources from the Energy2U Alliance Program Team. This support will include provision of key systems support and functional management in the environment, community and safety disciplines.

The project will be managed by the project delivery team as per the organisation chart presented below. The Energy2U Alliance Project Manager is accountable for the compliance with the CEMP and the overall environmental performance on the project. This includes the implementation of the Alliance Environmental Management System, Environmental Policy and measures detailed in the CEMP. The Program Environmental Manager is accountable for ensuring the Project Environmental Management Systems comply with relevant regulations, Acts, other legislation and Conditions of Approval. Day to day environmental management will be the responsibility of the Energy2U Alliance Project Manager.

During the construction period, all Energy2U Alliance personnel including the Project Manager, Site Manager and engaged contractors have general responsibilities in the development of a positive environmental management culture and for ensuring all activities are conducted in a manner which is consistent with the CEMP and the requirements and/or intent of the Alliance Management System.

The project organisational structure is provided below in Figure 3-1 below.

energy 2U Alliance | North Sydney Zone Substation Redevelopment

Senior Project

Engineer

Josh Tinker

Project Engineer

Cameron Savage

Site Engineer

Aryeh Gluck

Contracts

Administrator

Andrew Piccione

North Sydney Zone Substation Redevelopment | Construction Environmental Management Plan


Figure 3-1 - Project Organisational Structure

Project Manager

Kirsten Evans

Site Manager

John Franklin

Foreman

Simon Hindmarch

Construction

Workers

Subcontractors

Safety

Coordinator

Beau Whalan

Electrical

Supervisor

Sal Esposito

Electrical Leading

Hand

Scott Day

AMT Functional Support:

Construction: Adam Fitzpatrick Community: Fiona Pennington Environment: Wayne Petrass Safety: Alana Houliston Commercial: Craig Armstrong Electrical: Chris Joppich

26



3.3 Project Responsibilities

3.3.1 Energy2U Alliance Project Manager The Energy 2U Alliance Project Manager reports directly to the Alliance Construction Manager and is responsible for the day-to-day management of environmental performance on the project. The Project Manager is ultimately accountable for the implementation of the requirements contained within this CEMP. The Project Manager is responsible for:

• Assisting in preparing and implementing the CEMP;

• Instructing project personnel on how to comply with environmental policy and procedures;

• Ensuring that employees, contractors and sub-contractors are aware of, and comply with, the conditions of this approval relevant to their respective activities;

• Environmental impacts resulting from the actions of all persons that are invited onto the site, including contractors, sub-contractors and visitors;

• Arranging periodic monitoring and inspection by suitably trained personnel;

• Monthly evaluation of how effectively environmental controls are performing;

• Initiating remedial measures when environmental deficiencies are observed or in response to environmental complaints;

• Restriction of construction activities affected by any environmental deficiencies until remedial action has been taken; and

• Maintaining environmental performance records.

3.3.2 Environmental Representative Prior to the commencement of any construction or operational activities (or, as otherwise approved by DPI) Ausgrid will nominate for the approval of the Director-General of DPI a suitably qualified and experienced Environmental Representative(s) who will remain independent of the Alliance’s design, construction and operation personnel. The Environmental Representative(s) will be retained by Ausgrid during all construction activities and then throughout the life of the project (or as otherwise approved by DPI). The Environmental Representative(s) will:

• Oversee the implementation of all environmental management plans and monitoring programs required under this approval, and advise Ausgrid upon the achievement of these plans/programs;

• Consider and advise the proponent on its compliance obligations against all matters specified in the final Conditions of Approval, SoC and all relevant licences and permits; and

• Have the authority and independence to recommend to Ausgrid reasonable steps that will be taken to avoid or minimise unintended or adverse environmental impacts and failing the effectiveness of such steps, to recommend to Ausgrid that relevant activities will cease as soon as reasonably practicable wherever it is considered that there is a significant risk that an adverse impact on the environment will be likely to occur.

3.3.3 Energy2U Alliance Environmental Manager The Energy2U Alliance Environmental Manager will liaise with the Energy2U Project Manager and the Site Manager for the duration of the project. The Environmental Manager is responsible for:

• Preparing and implementing the CEMP;

• Considering and advising Ausgrid on matters specified in the Conditions of Approval and compliance with such approvals;



• Ensuring the Project Manager and Site Manager are aware of their environmental obligations as detailed within this CEMP and the Environmental Management System;

• Regular site inspections and the active pursuit of opportunities to enhance environmental outcomes;

• Tracking and reporting environmental performance; and

• Tracking and compliance against the Conditions of Approval for the scope of works being performed.

3.3.4 Site Manager The Site Manager will liaise with the Energy2U Project Manager for the duration of the project. The Site Manager is responsible for:

• Managing subcontractors and construction activities on a daily basis to ensure the appropriate environmental controls are implemented and maintained;

• Ensuring all staff are inducted into the site undertake daily tool box talks;

• Ensuring all site personnel will be provided with, will utilise and be appropriately trained in the requirements of Personal Protective Equipment (PPE) and environmental management equipment, such as spill kits; and

• Undertake daily site inspections and maintain records of environmental actions when required.

3.3.5 Senior Project Engineer The Senior Project Engineer reports directly to the Energy2U Project Manager and assists the Site Manager. The Senior Project Engineer is responsible for:

• Managing subcontractors and construction activities on a daily basis to ensure the appropriate environmental controls are implemented and maintained;

• Undertake daily site inspections and maintain records of environmental actions when required;

• Assisting in implementing the requirements contained within this CEMP; and

• Undertake daily site inspections, maintain site records and ensure environmental corrective actions associated with any site inspections, audits or meetings are closed out.

3.3.6 Works Crew and Contractors The Works Crew and Contractors will liaise with the Site Manager and Energy2U Project Manager for the duration of the project. They are responsible for:

• Day to day site activities;

• Site safety;

• Site cleanliness and order;

• Carrying out corrective actions issued as a result of any site inspections, audits or meeting; and

• Reporting any environmental management concerns or incidents immediately to the Site Manager.

Contact phone numbers for key personnel are provided in Table 3-1 below.



Table 3-1 – Contact Details for Key Personnel

Name Position Contact

Kirsten Evans Project Manager – Energy2U Alliance 0405 827 131

John Franklin Site Manager - Energy2U Alliance 0411 779 503

John Tinker Senior Project Engineer - Energy2U Alliance 0416 198 830

Cameron Savage Project Engineer – Energy2U Alliance 0412 592 270

Aryeh Gluck Site Engineer - Energy2U Alliance 0422 788 354

Andrew Piccione Contract Administrator – Energy2U Alliance 0419 981 449

Beau Whalan Safety Coordinator – Energy2U Alliance 0407 142 929

Fiona Bradley Community Liaison Officer - Energy2U Alliance 0468 923 835

Wayne Petrass Environmental Manager - Energy2U Alliance 0407 949 258

Alana Houliston Safety Manager - Energy2U Alliance 0447 610 732

Alliance Head Office

Reception - Energy2U Alliance 02 9414 3333

Ashley Robinson Environmental Representative – GHD 0405 480 070

3.4 Awareness and Training

3.4.1 Site Induction The site induction process, in addition to any environmental awareness training undertaken at either the program or project level, is designed to improve site personnel awareness of the impact of construction works on the local environment. In addition, it details the most significant environmental aspects and introduces this CEMP as the management tool used to address the controls and mitigation measures required to minimise or avoid environmental impact or harm on the project. This site induction process and any relevant environmental awareness training are to include all site personnel, including subcontractors and will inform them of their environmental responsibilities along with any safety issues whilst on site.

All visitors to the site must undergo a visitor’s induction which may be tailored where there is minimal potential for harmful effects to health and the environment. Sub-contractors are responsible for the actions of their visitors. All visitors must be accompanied by a fully inducted member of staff at all times. The induction of employees and contractors is the Energy2U Alliance Project Manager’s responsibility. Site personnel will be encouraged to be proactive and report any instances of environmental control measures not operating properly.



3.4.2 Tool Box Talks Tool box talks will be regularly conducted by the Site Manager for employees and subcontractors, and by subcontract supervisors. Tool box talks will be undertaken in response to evolving issues on the ground, particularly in response to significant environmental and safety incidents and non-conformance issues.



4 STATUTORY FRAMEWORK AND OBLIGATIONS

4.1 Legislative Compliance The Energy2U Alliance environmental compliance requirements and legislative context relevant to the North Sydney ZS project are outlined below and in the EA for the North Sydney Zone Substation Redevelopment (Energy2U Alliance, 2010).

4.1.1 Environmental Planning and Assessment Act 1979 The Environmental Planning and Assessment Act 1979 (EP&A Act) and the Environmental Planning and Assessment Regulation 2000 provide the framework for environmental planning in NSW and include provisions to ensure that proposals which have the potential to impact the environment are subject to detailed assessment, and provide opportunity for public involvement.

The project has been assessed and project approval has been obtained under Part 3A of the EP&A Act.

4.1.2 Environment Protection and Biodiversity Conservation Act 1999 The Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) stipulates that approval of the Commonwealth Minister for Sustainability, Environment, Water, Population and Communities is required for actions that may have a significant impact on Matters of National Environmental Significance (NES).

As the proposed works have been determined to have no significant impact on matters of NES, approval from the Commonwealth Minister for Sustainability, Environment, Water, Population and Communities is not required.

4.1.3 Protection of the Environment Operations Act 1997 The Protection of the Environment Operations Act 1997 (POEO Act) provides a regulatory framework for the licensing of all activities that may have a potential impact upon the environment.

Section 48 of the POEO Act requires a person to obtain an Environment Protection License (EPL) from the Office of Environment and Heritage (OEH) before carrying out any of the premises-based activities described in Schedule 1 of that Act. The proposed development is not identified in Schedule 1, therefore an EPL is not required under Schedule 1.

In addition to premises based activities the POEO Act regulates all pollution and requires that projects do not cause or permit activities that result in pollution of water, land or air environments. This includes unlawful disposal or transportation of waste, pollution of waters, emission of ozone depleting substances, willful or negligent behaviour that causes any substance to leak, spill or otherwise escape, and maintaining plant and equipment in an efficient condition and operating the equipment in a proper and efficient manner.

The obligations of the Protection of the Environment Operations Act 1997 (POEO Act) in relation to pollution incidents and activities associated with air, water, noise and land pollution will be complied with during the construction of the project through implementation of the environmental control measures outlined within this CEMP.

As of February 2012, pollution incidents which cause actual or potential “material” environmental harm (ie harm to health or safety of human beings or to ecosystems that is not trivial OR loss, damage or costs exceeding $10,000 (POEO Act S147)) are required by law to be notified “immediately” (ie “without delay”) to OEH and other specific agencies (refer also to Section 7.2).



The CEMP and sub plans have been developed to mitigate predicted environmental impacts associated with the construction phase and ensure the project does not cause or permit activities to result in pollution. Regular audits will be undertaken to track the compliance of the CEMP with the proposed environmental controls.

4.1.4 Contaminated Lands Management Act 1997 The Contaminated Lands Management Act 1997 establishes an investigation and remediation (if appropriate) process where contamination presents a significant risk of harm to human health or another aspect of the environment.

On the proposed substation site at 3-11 Ward Street, demolition, excavation and remediation works have already taken place. As a result, the potential contamination sources no longer exist on the site (refer to Section 10.5 of the Environmental Assessment).

Contamination sources at the site of the existing substation may be uncovered during the decommissioning and demolition works. Mitigation measures to minimise and manage potential for contamination during these works will be included in a DMP to be prepared prior to the commencement of demolition activities.

4.1.5 Electricity Supply Act 1995

The Electricity Supply Act 1995 (ES Act) regulates the network operations and wholesale trading and electricity supply in the retail market. The ES Act establishes the licensing regime for Ausgrid to develop and maintain electricity infrastructure through activities such as acquisition of land, carrying out works on public roads, trimming and removing trees.

The ES Act mandates that no works (other than routine repairs or maintenance works) may be carried out unless the local Council has been given 40 days notice to make a submission in relation to the project. Any submissions must be considered by Ausgrid. Notification requirements are included in Table 4-1 .

4.1.6 Heritage Act 1977 The site of the proposed substation has already been excavated to bedrock. No items of historic heritage significance were recorded during the excavation. Excavation of the cable vault and trenches will occur in the roadway and it is likely that the subsoil beneath the road will already be highly disturbed. Therefore the likelihood of encountering items of historic heritage significance during the construction of the new substation and associated service infrastructure is highly unlikely.

It is unlikely that the project will impact on any items of heritage significance given that there are no previously recorded sites of cultural heritage significance listed under the North Sydney LEP 2001 or the NSW Heritage Act 1977 (Heritage Act) on the project site.

If a suspected historic heritage item is discovered during excavation of the cable vault, work will stop immediately within that location, access will be restricted and the Site Supervisor and Ausgrid’s Environmental Services Unit will be contacted. OEH will then be contacted for advice and its requirements will be adhered to.

4.1.7 Work Health and Safety Act 2011

The Work Health and Safety Act 2011 (WHS Act) administered by NSW WorkCover, includes notification and storage requirements where substances classified as dangerous goods are kept. Where quantities exceed the manifest amounts, WorkCover must be advised through a notification system. Large quantities of dangerous goods (distillate) are not handled at the proposed North Sydney zone substation, in excess of those quantities specified in the WHS Regulation 2011, and



as such WorkCover are not required to be notified in accordance with the provisions of the WHS Act.

4.1.8 Roads Act 1993 The Roads Act 1993 (Roads Act) governs the use of public roadways and regulates certain activities associated with road construction and operation in NSW. The Roads Act provides procedures and requirements for the undertaking of construction activities within road easements including the temporary closure of roads.

Under the Roads Act, temporary road closure permits will be obtained from RTA for all activities resulting in disruption to public access in Berry Street. Consultation requirements detailed in the Roads Act will be followed at all times during these activities.

Under the ES Act, Ausgrid is exempt from obtaining approval for works involving public roads that are vested in the control of local councils. Ward and Harnett Streets are local roads under the management of North Sydney Council and accordingly approval from Council is not required.

A Traffic Management Plan is attached as Appendix C to this document.

4.2 Approvals, Licences, Permits Approvals, licenses and permits under NSW legislation that may apply to the proposed North Sydney ZS project are detailed in Table 4-1 . Relevant notifications are also listed.

Table 4-1- Approvals that may be required under NSW Legislation

LEGISLATION AUTHORITY REQUIREMENT

Roads Act 1993 RTA Temporary road occupancy licence required from RTA for work in Berry Street.

North Sydney Council

Hoarding permit required for Ward and Berry Streets


Permit for street opening for Ward, Harnett and Berry Streets for excavation works


Permit to stand plant and/or road closure for crane erection and dismantling


Permit for work zone for Harnett Street

Environmental Planning and Assessment Act 1979

DPI Project approval under Section 75J.

Electricity Supply Act 1995 North Sydney Council

40 days notice of the proposed works must be given. Notice was given on 24 November 2010.

National Parks and Wildlife Act 1974

OEH Permit required for consent to disturb or destroy any Aboriginal artefact or site, if discovered during the works.



LEGISLATION AUTHORITY REQUIREMENT

Heritage Act 1977 OEH North Sydney Council

In the event of any relic (artefact or site over 50 years of age) being discovered during works, work in the area shall cease. An excavation permit to allow the destruction or removal of the relic is likely to be required.

Occupational Health and Safety Amendment (Dangerous Goods) Act 2003

WorkCover OEH

If more than 50 000 litres of distillate is to be stored, an application for a Licence to Keep Dangerous Goods is required. If more than 100 litres of petroleum is to be stored, a Licence to Keep Dangerous Goods is required from WorkCover and EPA requirements for bunding must be met.

4.3 Consultation with Key Agencies, Stakeholders and Community

Consultation has been undertaken with key agencies throughout the planning and environmental assessment of the North Sydney ZS project. Consultation activities for the project commenced in November 2009. Consultation activities outlined below are a compilation of consultation undertaken during preparation of works, and excavation, under the previous Part 5 approval process and as part of the current Part 3A process.

4.3.1 Key Agencies and Stakeholders The key agencies consulted include:

• Office of Environment and Heritage (former Department of Environment, Climate Change and Water (DECCW));

• North Sydney Council;

• NSW Health; and

• Roads and Traffic Authority.

Issues raised by these agencies informed the original Part 5 assessment project, which in turn informed the Director General’s Requirements (DGRs) for the subsequent Part 3A assessment.

Other stakeholders and individuals and groups in the community who were included in the consultation process included:

• State Member for North Shore;

• Federal Member for North Sydney;

• Sydney Water;

• Jemena Gas Networks;

• Telstra;

• Landowners and occupants of premises adjacent to the boundary of proposed substation site;

• Landowners and occupants of premises in close proximity to the project site; and



• Local Precinct Committee (North Sydney CBD).

4.3.2 Key Consultation Activities Key consultation activities in relation to the North Sydney ZS project included:

• Conducting a site meeting with surrounding landowners/occupiers and North Sydney Council representatives;

• Conducting a number of meetings and briefings about the project with key stakeholders;

• Community newsletters and notification letters distributed to premises in the immediate vicinity of the project site to notify the community of project milestones;

• A community information display;

• Local media advertising;

• Website information (Ausgrid website);

• Postal address available: Level 4, Tower A, 799 Pacific Highway, Chatswood NSW 2067

• Establishment of a dedicated project free call (1800) phone number and email address for members of the community seeking more information; and

• Answering stakeholder and community inquiries with a target four hour response time during business hours.

energy 2U Alliance | North Sydney Zone Substation Redevelopment | Construction Environmental Management Plan 36


4.3.3 Summary of Consultation Responses

STAKEHOLDER GROUP

ISSUE RESPONSE AND RELEVANT SECTION OF CEMP WHERE RELEVANT


� Impact on mixed use development currently approved on the adjacent site to the east.

� Footpath widening along Ward Street and a pedestrian link from Ward Street to Harnett Street through the northern end of the site.

� Public benefit / landscaped public space on the corner of Berry Street and Ward Street when current substation is decommissioned.

� This issue was raised in response to the DA proposed by Castle Constructions. The design of the substation was amended to reduce the impact on the most impacted apartment on the western boundary of the mixed use development.

� Footpath widening is not possible due to the space constraints of the substation site.

� Section 6.11

Office of Environment and Heritage

� Water quality – proposed sediment and erosion control measures.

� Construction management – with particular reference to the proposed mitigation measures for the management of fugitive dust emissions.

� Section 6.10 and Appendices D and G

� Section 6.6



STAKEHOLDER GROUP


NSW Department of Health

� EMF levels produced by the existing North Sydney zone substation and its associated infrastructure under current operating scenarios.

� EMF levels that the proposed substation and its associated infrastructure produce under likely future operating scenarios.

� Options for prudent measures to mitigate increases in EMF levels should be considered in detail.

� The existing North Sydney Substation is earmarked for demolition.

� The substation design has been revised to reduce EMF levels at the eastern boundary

NSW RTA � Relocation of existing stormwater system.

� Traffic management during construction, particularly the cable vault

Section 6.5 and Appendix C

Sydney Water (Browns Consulting - Water Services Coordinator)

� Relocation of sewer vent

� Extension of water connection

� Diversion of existing water main and sewer mains


Jemena Gas Networks (NSW) Ltd

� Relocation of gas main in Ward Street Section 6.5 and Appendix C

Telstra � Relocation of existing copper cables in Ward Street

� Protection of existing optic fibre in Ward Street




STAKEHOLDER GROUP


Landowner/occupier adjacent to site boundary – 136-140 Walker Street

� Building setback from boundary

� Impaired outlook from some apartments

� Impaired amenity to adjacent site

� Reduced daylight penetration to site

� Visual dominance to adjacent site

� Overshadowing to adjacent site

� Loss of value/alternative development potential

These issues are relevant to the Castle Constructions DA only. The substation design has been amended to reduce potential impact on proposed apartments on western boundary of mixed use development.

� Noise reverberation and increased noise levels to adjacent site

� The substation has been designed to comply with operational noise criteria

� EMF � The substation design has been revised to reduce the EMF levels at the eastern boundary

� Construction noise � Section 6.4 and Appendix B

Community/interest groups

� Set back from Ward Street to provide a wider footpath for pedestrian traffic to car park nearby.

� Footpath widening is not possible due to the space constraints of the substation site.



4.3.4 Ongoing Consultation Community consultation will be ongoing throughout the construction phase of the project. A Community Involvement Plan (CIP), which outlines the consultation process, was prepared for the project and is attached to this CEMP (Appendix E ).



5 ENVIRONMENTAL RISK MANAGEMENT

An environmental risk analysis was undertaken using the risk analysis matrix included in the EA to determine the unmitigated risk of each individual environmental aspect relevant to the North Sydney ZS project. The level of risk determined from the matrix identifies the level of mitigations required for that environmental aspect. These risks will be mitigated through the application of measures identified in this CEMP.

The environmental risk analysis focused on those elements that will be associated with the North Sydney ZS project. All identified risks, including environmental risks, will be managed through Active Risk Manager (ARM). ARM is a server-based database which tracks the status of all identified risks and opportunities and maintains traceability. It also uses Monte-Carlo simulation to provide appropriate cost impacts should these risks be realised.

The environmental risks and potential impacts were identified based on the following:

• Characteristics and sensitivity of the receiving environment;

• Severity of potential risks;

• Potential impacts likely to occur, including their duration, intensity and degree to which they can be mitigated; and

• Level of uncertainty of the anticipated residual impacts.

The prioritisation of issues for the project is based on the need to recognise that the higher the potential severity of adverse environmental effects and the greater the consequence of those unmanaged effects, the higher the degree of environmental management required.

The prioritisation of environmental issues related to the project is shown in Appendix F . This assessment allowed the prioritisation of issues for assessment and did not consider the application of mitigation measures to manage environmental effects. In all cases, appropriate and proven mitigation measures, chosen based upon the experience of regulators and other similar projects will be used to minimise potential impacts. These mitigation measures are outlined in Section 6 of this CEMP.

Based on the results of the environmental risk analysis, the following key environmental issues were identified:

� Temporary noise nuisance and disturbance to residential receivers during excavation and construction of the cable vault and substation.

� Amenity (including access, noise, visual and air quality) impacts on the surrounding residents and stakeholders during construction.

� Increase in vehicular traffic on local road network during construction of the proposed substation, cable vault and trenching works.



6 ENVIRONMENTAL MANAGEMENT AND CONTROLS

6.1 Introduction The following section sets out the environmental management activities and management measures which will be implemented during the construction of the North Sydney ZS project. The Energy2U Alliance Project Manager will ensure that personnel responsible for undertaking the works are aware of their roles and responsibilities detailed in this CEMP.

Sub plans have been prepared for the issues of noise and vibration, erosion and sediment control and traffic, and are appended to this CEMP as follows:

• Construction Noise and Vibration Management Plan (Appendix B);

• Construction Traffic Management Plan (Appendix C); and

• Erosion and Sediment Management Plan (Appendix D).

Where a sub plan has been prepared for a particular issue, the environmental management activities and management measures to be implemented during construction are detailed in the sub plan (presented as appendices to this CEMP) and not in this section.

6.2 Visual Amenity The North Sydney ZS has been designed to address comments raised by North Sydney Council’s Design Excellence Panel during the environmental assessment process. The substation will be constructed to ensure consistency with the external façade of the substation as shown in the design drawings.

The following impacts on visual amenity have the potential to occur as part of the construction of the North Sydney ZS project.

• Litter and waste on the project site and surrounding the construction site;

• Obtrusive and offensive construction lighting; and

• Presence of equipment (hoardings) machinery and plant.

The visual impact of the construction of the new substation is considered low due to the fact that the construction of the proposed substation will occur prior to demolition of the existing substation which will block views from Berry Street.

All potential visual impacts will be temporary in nature and mitigated through the implementation of appropriate mitigation and management measures detailed below in Table 6-1 .

Table 6-1 - Visual Amenity and Design

Issue Mitigation Responsibility

Vegetation � Planting of a select suite of tree and shrub species to the rear garden spaces of 76 Berry Street (should the proposed development at 136-140 Walker Street proceed) to replace vegetation that is removed during the construction of the substation.

Energy2U Alliance Project Manager

Litter / Site Condition � The site will be maintained in a tidy state at All




all times.

Site Appearance � Type B Hoardings will be installed to impede views into the construction site.


Obtrusive and offensive construction lighting

� All external lighting will be mounted, screened, and directed in such a manner so as not to create a nuisance to the surrounding environment, receptors and roadways. Lighting will be installed to result in the minimum level of illumination necessary and will comply with AS 4282(INT) 1997 – Control of Obtrusive Effects of Outdoor Lighting.


6.3 Noise and Vibration Refer to Construction Noise and Vibration Management Plan presented as Appendix B .

6.4 Traffic and Access Refer to the Construction Traffic Management Plan presented as Appendix C .

6.5 Air Quality The following impacts on air quality have the potential to occur during the construction of the North Sydney ZS project:

• Dust generated from the disturbance of soil for approximately two to three months during the excavation for the cable vault, construction of the new substation (rock hammering and sawing) and dust from the slab floors;

• Plant and equipment emissions; and

• Vehicle emissions.

The immediate neighbours of the North Sydney site will be notified of potential upcoming works through regular updates as outlined in the CIP (Appendix E ). Close liaison will be maintained with the residents and businesses situated near the work sites to provide effective feedback in regard to perceived issues. In this manner, equipment selections and work activities can be coordinated where necessary to minimise disturbance and to ensure prompt response to complaints and other issues of concern, should they arise.

All impacts will be temporary and mitigated through the implementation of appropriate mitigation and management measures detailed below in Table 6-2 .

Table 6-2 – Air Quality


General � All personnel will be made aware during toolbox meetings that they are to immediately inform the foreman if they observe excessive dust in the air leaving the site. In such cases, the Foreman will investigate the source of the dust and ensure

All personnel




that proper controls are in place. If those controls prove ineffective, the activity will cease until methods to successfully control the dust are employed.

� Dust complaints will be handled as per complaint handling procedure outlined in the CIP (Appendix E ).

Project Manager / Foreman

� Silt accumulated in erosion control devices (e.g. silt fences) will be removed on a regular basis to prevent dust generation and placed in the appropriate waste receptacle.


Dust � Minimise ground disturbance to minimum required for excavation of cable vault and trenching works.

� Undertake trenching in stages to minimise active open trench areas.

� Removal of spoil excavated from the cable vault and conduit trenches on a regular basis, every 1-2 days using trucks that will take regular trips to disposal facilities.

� Immediate removal of spoil spilt on public roads and other sealed surfaces.

� Removal of sediment from vehicles before leaving the site.

� Covering of loads of spoil transported from the site.

� Dampening of the ground surface to suppress dust from disturbed areas during excavation of the cable vault and trenches.

� Stabilise access and egress points to limit dust associated with traffic movements.

� Ensure newly construction slab/floors of the substation are kept clean and free of wind erodible materials.

� Application of water misting equipment (e.g. garni spray unit at work face and/or boundary sprinklers).Daily visual inspections will be undertaken by the Foreman of the immediate surrounding streets to ensure no materials have been lost from vehicles entering or leaving the site.

� Sealed roads around work areas will be swept as required to remove deposited material with potential to generate dust.

� Rock sawing will be undertaken in a manner





that will reduce the potential for fine sandstone material to be mobilised in either a mist or slurry and be released offsite (i.e. by installing rock saw shields or barriers when working near site perimeter).

Gaseous Emissions � Plant and equipment will be turned off when not in use.

� Construction vehicles and equipment will be properly serviced and maintained to ensure that they run efficiently and comply with relevant exhaust emission standards.

� A daily visual inspection of plant will be undertaken for excessive exhaust emissions. Construction equipment emitting visible smoke for longer than 10 seconds will be taken out of service and repaired or tuned so that smoke is no longer visible for longer than 10 seconds.


6.6 Sustainability and Climate Change The following sustainability and climate change impacts have the potential to occur as part of the North Sydney ZS project:

• Emissions associated with the embodied energy of materials and resources used during construction;

• Emissions associated with the transport of resources and waste to and from the site;

• Indirect emissions associated with the extraction, production and transport of fuels used by construction plant and equipment.

All impacts will be mitigated through the implementation of appropriate mitigation and management measures detailed below in Table 6-3 .

Table 6-3 – Sustainability and Climate Change


Greenhouse Gases (GHG)

� Materials will be sourced from local suppliers where feasible, to reduce the distance that materials need to be transported to the site. Materials sourced locally include bricks, concrete, steel, cladding and roofing, louvers and reinforcing and structural steel.

� During construction waste will be taken off site, with a target of 80 per cent of construction waste recycled.


Sustainability � All purchasing of materials will be undertaken as per the guidance of the Waste Reduction and Purchasing Policy (WRAPP) Plan of





Ausgrid and general WRAPP principles.

� Where possible, all unused construction materials and packaging will be recycled, retained for reuse on other similar project or returned to the supplier for redistribution.

6.7 Geology and Soils The following impacts to geology and soils have the potential to occur as part of the North Sydney ZS project:

• Accidental spillages of chemicals/fuel which may leach into underlying groundwater or ‘wash-out’ into stormwater system.

• Geotechnical risks during excavation of the cable vault on Berry Street.

Geotechnical risks during construction will be mitigated through management of the structural risks to Berry Street during excavation of the cable vault. Detailed design drawings and geotechnical reports will be submitted to the RTA as will measures for the monitoring of settlement impacts to Berry Street.

All impacts will be temporary in nature and mitigated through the implementation of appropriate mitigation and management measures. Refer to the ESCP in Appendix D which has been prepared in accordance with Landcom’s ‘Managing Urban Stormwater: Soils and Conservation’.

6.8 Contamination The following contamination impacts have the potential to occur as part of the North Sydney ZS project:

• Contamination of soil, surface water and groundwater from spills and leaks associated with the inappropriate storage and handling of chemicals, oils and fuels.

• Potential for construction vehicles, plant and equipment to leak fuels, oils or chemicals if they are not properly managed and maintained.

• Localised contamination in the material that is excavated for the cable vault and trenches for conduits in Harnett and Ward Streets.

All impacts will be temporary and mitigated through the implementation of appropriate mitigation and management measures detailed below in Table 6-4.



Table 6-4 - Contamination


Contaminated material

� If any unexpected material that is suspected of being contaminated (e.g. leachate, waste oil, drums of chemicals or asbestos) is discovered during the construction of the substation, trenching works or excavation of the cable vault, all work will cease at the site until the nature and extent of the contamination has been established and an appropriate management strategy has been developed

Energy2U Alliance Project Manager/All

Vehicles, Equipment and Plant Leaks

� All plant and equipment used in the handling and transport of oil, fuels or chemicals will be regularly checked for serviceability, all hoses checked for deterioration, and hose ends and fittings checked for distortion.


Management of Toxic and Hazardous Chemicals

� A register of all toxic and hazardous chemicals stored on the site will be maintained, together with a file containing the relevant MSDS of each product.


Handling of Fuels, Oils and Chemicals

� Spills and leaks will be promptly and appropriately cleaned up, relevant personnel will be notified as required (refer to Section 7.1) and contaminated materials disposed of appropriately.

� Emergency spill kits will be maintained and will be readily available whenever oils, fuels or chemicals are handled, transported, stored, processed or tested.

� Fuel, oil and other chemicals will be stored in a secured and contained area.

� Liquid and dry chemicals (including fuels) will be stored and handled in accordance with the Material Safety Data Sheet (MSDS) information and directives.

� Major spills that will have an impact on the surrounding environment will be promptly reported to the Fire Brigade (refer Section 7.1). The spill will be contained, collected and disposed of in accordance with directives from authorities and applicable regulatory requirements.

� All personnel will be trained in procedures for the management of fuel and chemical spills and the location of spill kits.

� Oil hoses and pumps will not be left





unattended whilst in use.

6.9 Water Quality and Hydrology The following impacts on water quality and hydrology, including surface and groundwater have the potential to occur as part of the construction of the North Sydney ZS project:

• Discharge of sediment laden runoff into the stormwater system and subsequently to local waterways, and ultimately Sydney Harbour.

• Discharge of contaminated runoff from accidental spillage of chemicals and fuels from the operation and maintenance of construction plant and storage areas.

• Alteration of existing surface flows.

All impacts will be temporary and mitigated through the implementation of appropriate mitigation and management measures. Refer to mitigation measures in Table 6-5 ,the ESCP in Appendix D and Dewatering Procedure in Appendix G .

Table 6-5 - Water Quality and Hydrological Management


Spillage of fuel, oil and other chemicals on site.

� A secure and covered bunded area for the storage of fuel, oil and other chemicals and maintenance and refuelling of plant and equipment will be provided within the site compound, located in the Harnett Street Council car park area. This area will be bunded with an impervious material and will be inspected and maintained regularly and after rain events.

� Where possible, machinery will be refuelled using mini-tankers to avoid on-site storage of fuel. Refuelling will be attended at all times and a spill kit will be kept on hand.

� An appropriately sized spill kit will be provided onsite for emergency spills of fuel, oil or other chemicals.

� An emergency spill procedure will be displayed in a prominent position adjacent to the fuel/chemical storage area (refer Section 7.1).

� Any potential pollutant, such as fuels, oils, paints, epoxy and waterproofing, will not be put in a position where it is likely to enter a drain, gutter or other stormwater outlet.

� All personnel will be trained in procedures for the management of fuel and chemical spills and the location of spill kits.





Storage of Liquids � Materials will be stored in accordance with Storing and Handling Liquids: Environment Protection Participant’s Manual (DECC, 2007), the product’s MSDS and any relevant OH&S requirements.


Site Stormwater Management

� Site stormwater from the excavation will be captured on-site in a sediment tank, treated and pumped into the reticulated stormwater system (refer Dewatering Procedure in Appendix G).

� Runoff from exposed areas will be controlled through the installation of temporary erosion and sediment controls. These will be regularly inspected and maintained. Refer ESCP in Appendix D.

� Energy dissipaters will be installed at drainage outlets to minimise water velocity and erosion potential.


Concrete Pump � Trays will be placed under the concrete pump whilst in use and will be collected and disposed at an appropriately licensed facility after each pour. Due to the limited space on site, concrete trucks will be washed out upon return to the concrete plant. The chute only of the concrete truck will be washed back into the agitator or on site in a bunded area.


Pollution Control � All temporary pollution control structures will be implemented prior to the commencement of construction and removed from the worksite when it is adequately stabilised.


6.10 Socio-Economic Social impacts associated with the substation redevelopment will generally be positive in nature (i.e. the substation will ensure the continuation of a safe and reliable electricity supply for the North Sydney area). While there will be temporary negative impacts during the construction phase of the project, once the new substation is operational the overall impact to the general public would be positive. During construction of the proposed ZS the following socio-economic impacts may occur:

• Temporary noise impacts during excavation of the cable vault, trenching and construction of the ZS during weekdays and on weekends.

• Minor visual impacts related to construction works for people entering the Wilson Parking car park along Ward Street and for workers in the surrounding commercial developments.

• Safety and access impacts associated with the construction of the cable vault including the partial closure of Berry Street during the six month construction period and condition of the roads surrounding the site post-construction.

All impacts will be temporary in nature and mitigated through the implementation of appropriate mitigation and management measures detailed below in Table 6-6 .



Table 6-6 - Management of socio-economic impacts


Amenity Impacts including Noise, Visual and Access

� Ongoing stakeholder and community consultation will occur as per the CIP prepared for the project.

E2U Alliance Project Manager and Community Consultation Staff

Safety of construction personnel and community members during construction works

� A Safety Management Plan will be implemented to ensure the safety of the public and staff.

E2U Alliance Project Manager

Condition of roads � Ward and Harnett Streets will be resurfaced at the completion of the construction works.

� Pre-construction dilapidation survey and report will be prepared as per Condition B4.

E2U Alliance Project Manager

6.11 Waste Management The following spoil and waste impacts have the potential to occur as part of the North Sydney ZS project. During construction of the proposed ZS a range of waste streams will be generated including general building waste and off-cuts, such as asphalt, cable, timber, paving, roof sheeting, tiles, plastic sheeting and brickwork, excess concrete, spoil material from the excavation of the cable vault, and general waste, such as food scraps and packaging from workers.

Potential impacts associated with the managed of waste during the construction activities may include:

• Traffic delays from waste transport;

• Litter on and around site.

During construction, waste will be taken offsite, with a target of 80% of construction waste to be recycled. All impacts will be temporary in nature and mitigated through the implementation of appropriate mitigation and management measures detailed below in Table 6-7 .

Table 6-7 – Waste Management


Reuse and Recycling of Waste

� All purchasing of materials will be undertaken as per the guidance of the Waste Reduction and Purchasing Policy (WRAPP) Plan of Ausgrid and general WRAPP principles.

� Where possible all waste materials will be reused on site or recycled. All non-recyclable or reusable waste will be classified in accordance with OEHs Waste Classification Guidelines (2009) and disposed off-site at an appropriately licensed waste disposal and/or reuse facility.


On-site Waste � Daily inspections of the worksite will be conducted at the close of the day to ensure





the work area is left in a rubbish free state.

Waste Storage and Disposal

� Waste and surplus construction materials (i.e. bitumen, asphalt or concrete) will not be disposed on the site or on any land around the site.

� All wastes will be secured in suitable well maintained containers with labels to maximise the segregation of waste. Separate bins will be provided for recyclable materials or co-mingled waste bins will be used where wastes are separated offsite for recycling or disposal.

� There will be no burning of waste material, cleared vegetation or other material.

� Bins will be provided for waste and will not be overfilled or overloaded.


Waste Management Procedure

� A waste register will be maintained for the project to ensure all wastes removed from site can be tracked. Information that will be kept as part of the waste register will include:

• Environment Protection Licence (EPL) of the recycling/disposal facilities used (to ensure waste can be lawfully recycled/disposed of to a facility or facilities.

• Waste facility dockets from weighbridge or gate control.

• Where the waste classification requires details (i.e. EPA licence) of waste transportation companies used (to ensure waste is being lawfully transported).

• Quantities of waste generated for relevant waste categories (this includes liquid waste e.g. treated water discharged from the site).

• Details of % recycling/reuse versus landfill disposal of waste and against goal.

� Where possible, products and resources with recycled content will be preferentially purchased and products with excess packaging would be avoided.

� Upon completion of the project, all waste will be removed from the worksite and a WRAPP report will be prepared.





Control of Waste � The project site will be controlled and supervised to ensure that wastes generated outside of the site are not received at the site for storage, treatment, processing, repossessing, or disposal onsite.


6.12 Heritage The following impacts on Indigenous and Non-indigenous Heritage have the potential to occur as part of the construction phase of the North Sydney ZS project.

• Disturbance of unknown heritage items/sites.

Impacts are anticipated to be negligible and will be ameliorated through the implementation of appropriate mitigation and management measures detailed below in Table 6-10.

Table 6-8 - Heritage


Uncovering of Artefacts

� If any Indigenous (i.e. Aboriginal) artefact is encountered/unearthed, all works will cease and access to the area will be restricted. The Site Manager and Project Manager will be immediately notified. Ausgrid’s Environmental Services Unit will be notified and the National Parks and Wildlife Service (NPWS, part of OEH) will be contacted for its advice and requirements. Works will not recommence until written authorisation has been obtained from Ausgrid and the NPWS.

� If any non-Indigenous (i.e. European) artefact is encountered/unearthed, all works will cease and access to the area will be restricted. The Site Manager and Project Manager will be immediately notified. Ausgrid’s Environmental Services Unit will be notified and OEH will be contacted for its advice and requirements. Works will not recommence until written authorisation has been obtained from Ausgrid and the Heritage Branch.


6.13 Flora and Fauna The impacts on flora and fauna as a result of construction of the North Sydney ZS project include the removal of four trees (including one dead tree) along the eastern boundary, and the trimming of two trees for safety purposes. As the trees to be removed or trimmed are exotic species, the impact of the project on flora and fauna will be low and mitigation measures outlined in Table 6-9 will assist in avoidance of the spread of these species. The location of trees that will be pruned and removed is illustrated in the figure below.

Location of Trees to Be Pruned or Removed

Gingko – to be removed

Hill’s Weeping Fig – to be removed

Dead tree – to be removed

Cotoneaster – to be pruned

Cocos Palm –to be removed



Table 6-9 – Flora and Fauna


Spread of exotic Species

� Vegetation will be removed or trimmed in a manner that minimises the risk of spreading weed propagules.

� Clippings will be disposed to an appropriately licensed facility.

� Vegetation removed from neighbouring properties (76 Berry Street and 142 Walker Street) may be replaced with local native species (at the request of affected landowners).

� Any remaining vegetation will be avoided where possible.

� Removal and trimming of vegetation will be limited to the vegetation outlined in the Environmental Assessment.

� Ausgrid’s Environmental Services Unit will be consulted if additional tree clearing and tree pruning is required prior to undertaking the works.


6.14 Community Community consultation is considered integral to the success of the North Sydney ZS project. In order to maximize community involvement and awareness for the project a CIP has been prepared specifically to manage the notification and community awareness program associated with the project.

The CIP includes recommendations, proposed actions and procedures and is provided in Appendix E of this CEMP.

6.15 Cumulative Impacts Cumulative impacts that would potentially occur if the North Sydney Zone Substation was to be constructed at the same time as other proposals in the area include the following issues:

• Noise and vibration;

• Safety and access; and

• Visual amenity.

The mitigation measures outlined in Table 6-12 will assist in minimising the cumulative impacts arising from concurrent developments in the vicinity of the project site.

Table 6-10 – Cumulative Impacts


Access to Walker Street during construction

� Revision of TMPs to coordinate and manage construction traffic.





Noise affecting surrounding properties.

� Revision of CNVMP to manage the scheduling and location of noisy plant and activities.

� Targeted consultation with noise-affected sensitive receivers.


Visual amenity � Project site areas will be managed to ensure they are ordered and tidy at all times. Rubbish generated during the works will be immediately disposed to the appropriate receptacle and not left strewn around the site areas. Small plant, tools and other items (such as lubricants, oils and other chemicals) required for specific activities will be stored when not in use and not left strewn around the site areas. Fencing, signage and other highly visual areas of the project site areas will be replaced/repaired immediately if they become compromised or damaged.


Owners of properties at 136-142 Walker St and 144-450 Walker St, which are under concurrent construction, have been obtained.



7 INCIDENT MANAGEMENT AND EMERGENCY RESPONSE

7.1 Introduction An environmental incident is an unplanned event which occurs on site and has the potential to result in adverse environmental impacts on site and/or in the surrounding area. The general emergency response procedure is to:

• Ensure site safety, move people from immediate area;

• Warn traffic / pedestrians in the immediate area of any hazard which affects traffic and access (use lights, warning signs, etc.);

• Take any practical steps to contain the hazard and prevent it from spreading or causing furter harm;

• Notify Alliance PM Notify Alliance Environment Manager (Wayne Petrass 0407 949 258) or LCPL Branch Environment Manager (David McLean 0457 757 435 or Richard Peterson 0429 227 775) to confirm need for and approach to notification;

• Notify relevant authorities as below (whether or not above available);

• Clean up and rectify damage;

• Report and investigate;

• Notify the ER, Ausgrid and DPI;

• Record in Cintellate.

7.2 Notification of Incidents Pollution incidents which cause actual or potential “material” environmental harm (ie harm to health or safety of human beings or to ecosystems that is not trivial OR loss, damage or costs exceeding $10,000 (POEO Act S147)) are required by law to be notified “immediately ” (ie “without delay”) to OEH and other specific agencies . LCPL Branch Environmental Manager is to be contacted prior to notification to OEH. Penalties of up to $2M (or $500K for individuals) can apply for failure to report. This applies whether the harm to the environment is on-site or off-site.

Authorities to be notified in the following order: (call 000 first if immediate threat to human health or property)

1. Environment Protection Authority (EPA) (ie. OEH) - Environment Line ph 131 555

2. Ministry of Health – local office Hornsby Hospital ph 02 9477 9400 / after hours 02 9477 9123- ask for Public Health Officer on call, Fax: 02 9482 1650 (http://www.health.nsw.gov.au/public-health/phus/phus.html)

3. Work Cover Authority - phone 13 10 50

4. Local Council: North Sydney 9936 8100

5. Fire and Rescue NSW - phone 000 (call 000 first if immediate threat to human health or property



7.3 Recording Incidents in Cintellate Details of incidents and action taken, will be entered into Cintellate, the Alliance’s SH&E Incident Management System. Incidents are categorised into three levels: � Level 3: Low severity occurrence defined as pollution or degradation with short-term and

reversible detrimental effects on the environment and/or community. For example, minor oil spill completely remediated.

� Level 2: Medium severity defined as pollution or degradation with persistent (greater than level three) but not irreversible detrimental effects on the environment and/or community.

� Level 1: High severity event defined as pollution or degradation that has or may have irreversible detrimental effects on the environment and/or community, for example, illegal clearing of endangered plants.

7.4 Pollution of Waterways Any accidental spill of fuel, oil or chemicals into the local stormwater system or waterway or an uncontrolled release of dirty water from a water quality control structure or bunded area will be handled in accordance with the following procedure:

• If possible, act quickly to intercept discharge before it enters the local stormwater system with an earth bund or sock from spill kit;

• Spread absorbent material from spill kit to soak up spill;

• If a significant spill occurs a vacuum truck operator will be called immediately to clean up the spill and the spill reported to the Energy2U Project Manager, OEH and the ER; and

• If a spill of fuel, oil or chemicals enters the stormwater system, the Energy2U Alliance Project Manager will immediately notify the North Sydney Council and the Fire Brigade.

Dewatering from the excavation will be managed in accordance with the Dewatering Protocol, attached as an appendix.

7.5 Emergency Contacts Emergency contacts for the North Sydney project are listed below in Table 7-1 .

Team members will be encouraged to follow Energy2U’s safety management plan and protocols for incident and emergency response. The following emergency reporting guide and contact list is provided as a support tool in the event of a site incident.

Table 7-1 Emergency Reporting Guide and Contact List

EMERGENCY REPORTING MATTERS

INSTRUCTION FOR PERSON REPORTING EMERGENCY

Who you are Name and role

Type of incident/injuries What happened

Incident location Where it happened

Emergency services Do you require/have you contacted Fire/Ambulance/Police – what access point will be used

Incident status Actions underway

Actions required Request assistance or actions from the contact – if required



Call back Give your phone number so your contact can call you back

EMERGENCY SERVICES

Contact Phone

1. Police/Fire/Ambulance 000 or 112 (from a mobile)

2. Local Police Station 9956 3199 (North Sydney)

3. Local Hospital – RNSH 9926 7111 (switch)

AGENCIES & UTILITIES

Contact Phone

1. OEH 24 Hr Pollution Incidents 131 555

2. North Sydney Council (switch) 9936 8100

3. Water – Sydney Water 132 090

4. Gas – Jemena 131 909

5. Electricity – Ausgrid 131 388

ENERGY2U

Contact Position Phone Mobile

1. Alana Houliston Safety Manager 9414 3989 0447 610 732

2. John Franklin Site Manager 9414 3431 0411 779 503

3. Kirsten Evans Project Manager/ Emergency Controller

9035 5008 0405 827 131

4. Adam Fitzpatrick Construction Manager 9414 3545 0402 791 351

5. Tim Jelbart Alliance Manager 9035 5028 0417 601 085

6. Fiona Bradley Communications Manager 9035 5501 0468 923 835

7. Wayne Petrass Environment Manager 9035 5319 0407 949 258



PRINCIPAL CONTRACTOR


1. John Naoum LCPL Business Unit Safety Manager

9035 5574 0417 751 815

2. Glen Mace LCPL NSW/ACT Construction Division General Manager

9035 5560 0429 929 311

3. David McLean Branch Environment Operations Manager

9035 5619 0457 757 435

4. Richard Peterson Branch Environment Manager

9414 3584 0429 227 775

AUSGRID


1. Craig Moody Manager, Project Services and Alliance Management

9394 6676 0414 192 142

2. Phil Bratby Manager Major Project Development – North

9269 7216 0409 087 973

3. Les McCluskey Senior Environment Officer 9394 6658 0408 470 987

4. James Hart Environment Manager 9394 6659 0412 070 574

5. Peter Leate Manager Community Relations

9269 4346 0408 384 006

6. Terrence Williams Safety Manager 9394 6684 0418 278 167

7. Bob Ridings Interface Manager 9269 2953 0418 858 029

8. Paul Tapp Interface Manager 9410 5240 0412 322 340

9. Julie Walker Senior Community Relations Officer

9269 2492 0437 605 908

10. Ashley Robinson Environmental Representative (independent - approved by DPI)

9239 7089 0405 480 070



7.6 External Communication and Complaints Handling A CIP has been prepared for the North Sydney ZS project. This plan is provided as Appendix E to this CEMP.

The CIP identifies protocols for community liaison as well as the procedure for dealing with complaints. The complaints handling procedure is presented in the CIP and has been summarised below. All complaints regarding the development will be referred to the Energy2U Project Manager immediately. The Energy2U Community Liaison Officer will also be notified of all complaints (within four business hours) and will establish a file for all external complaints about environmental activities for the project.

Energy2U’s target response time for community contacts received via the 1800 number, email or in person is within four business hours . Where construction hours for the project are outside business hours, a telephone response time of four business hours will be calculated according to standard construction hours for the project.

A response time will be recorded whenever Energy2U:

• Addresses the enquiry or complaint immediately;

• Addresses the enquiry or issue by obtaining and providing information (e.g. calls back with required information after obtaining/checking that information with relevant project team member or Ausgrid); and/or

• Addresses the enquiry or complaint by establishing a course of action (e.g. calls back explaining the process that will be undertaken to address the enquiry or issue and advises a timeframe for follow up).

Business hours are defined as the project’s work hours. Standard construction work hours (7am to 6pm Monday to Friday and 8am to 4pm Saturday) will be used to calculate the response time.

All disputes will be managed in accordance with Ausgrid’s Customer Complaint/Dispute Management Procedure (EA-CC and DP001).

Should noise complaints be received during evening/night time works (that may be approved in future) the complaint will be reported to the Director-General within 24 hours (refer Section 4.3.2 of Appendix B ).

7.5 Recording inquiries and complaints The 1800 number, Energy2U email address and postal address are managed by the project’s Community Liaison Officer, who is responsible for recording the contact in the Energy2U contacts database.

The complaints register will be made available for inspection by the Director-General upon request during the life of the project.

The protocol for capturing community contact and complaints is outlined in Table 5.1.

Table 5.1 Community contact and complaints protocol

Project enquiries/complaints protocol

Report Instruction

Name Record name and company if applicable.

Means of contact Record the means by which the enquiry or complaint is made



(telephone, mail or email).

Contact details Record address and a contact number, or if no details are provided, a note to that effect.

Nature of contact Record whether an enquiry or complaint, question or comment.

Response provided Record any response or action(s) taken in relation to the enquiry/complaint.

Commitments made Record any commitments you made e.g. “an Alliance team member will contact you regarding your question…”. Include any follow-up contact with the complainant and the timing for implementing action and details of the action being closed out. If no action was taken by the Proponent in relation to the complaint, the reason(s) why no action was taken.

Date and time of enquiry Record the date and time of enquiry and note whether response was provided - less than four hours; within four hours or more than four hours - to satisfy KRA performance measures.

Inform Communications Officer

If not part of the E2U Alliance Communications and Community Relations team, immediately call 1800 992 249 to report all details of the contact.

The procedure for dealing with inquiries and contact from the community is outlined in Figure 7.1 .

The process for responding to Media inquiries is outlined in Figure 7.2 .



Figure 7.1 Process for site personnel to manage community complaints and contacts



Figure 7.2 Process for managing media inquiries



8 COMPLIANCE MONITORING

8.1 Environmental Audit Program A suitably qualified environmental specialist (Ashley Robinson) will conduct regular audits on the compliance with the Minister’s Conditions of Approval / implementation of the CEMP and issue findings of the audits to DPI. An initial audit will be conducted within four weeks of commencement of on-site activities. The audit program will be undertaken as follows:

• Internal Environmental audits will be conducted for compliance with the Minister’s Conditions of Approval / this CEMP. These audits may be undertaken as a joint audit with Ausgrid representatives in attendance. They will include an audit of the site and subcontractor activities to assess compliance with the site CEMP and relevant approvals, licenses and permits obtained in relation to the project;

• Each month, a report will be presented to Ausgrid detailing compliance with the CEMP and Conditions of Approval. This report will include updates on the project status and any incidents or initiatives within each of the functional areas, including environmental management and performance tracking; and

• Incident reports will be prepared in Cintellate following any onsite environmental incidents. This report will document the investigations undertaken and detail possible contributory factors and recommended system improvements. Incident Reports are to be provided to Ausgrid and the ER when requested.

8.2 Environmental Inspections In addition to formal auditing and monitoring identified in this CEMP, the following environmental inspections will be undertaken:

• Site supervisory staff will, as part of their daily duties, inspect the site (including all subcontractor activities), and issues arising will be noted in the site diary or checklists and communicated to the Energy2U Alliance Environmental Manager;

• The Energy2U Alliance Environmental Manager or Coordinator will conduct inspections of the site with the Project Manager, Site Engineer or Site Manager, on a monthly basis indicatively and more frequently at times as required. Checklists will be used to record and report on activities for compliance with this CEMP and specific issues addressed as presenting significant environmental risks;

• Ausgrid representatives may undertake site inspections periodically, or as required.

The regulatory agencies, such as OEH, the RTA and the local Council may also conduct site inspections. The Alliance Environmental Manager or delegate will attend these inspections, as required.

8.3 Non-Conformance, Corrective and Preventative Action All non conformances noted in the site inspections, audits, incident reports, or reported to the Energy2U Alliance Project Manager by staff or other parties / authorities will be investigated, rectified and recorded in Cintellate and significant occurrences reported to the ER and Ausgrid. The Project Manager will ensure corrective actions are carried out, if required. The Cintellate entry will include details of the corrective action proposed and an appropriate close out date. Corrective actions will include containment measures, clean-up and restoration of the affected area and of any deficient operational controls or monitoring controls. On completion, the Energy2U Alliance Project Manager will ensure the outcomes are acceptable before the Cintellate entry is closed out .



The occurrence of such an event will be brought to the attention of personnel responsible and environmental controls will be updated to prevent a reoccurrence.

The issue, corrective and preventative actions proposed, and the responsibilities and timing for completion of the actions will be detailed in the Cintellate entry.

Environmental inspection reports will also note observations and recommendations for improvement and requirements to address potential hazards. These will be promptly addressed.

The Energy2U Alliance Project Manager will review the environmental inspection reports and Cintellate record to ensure actions are completed and that controls are performing effectively. The Project Manager will also review the CEMP if necessary to determine if the above situations require project scope changes or if the incident identifies opportunities for improvement in mitigations or work practices.

The benefit of site personnel adhering to the CEMP requirements is that construction works will be undertaken in a controlled fashion with minimal impact on the environment. Consequences of departure from specified mitigation measures contained within this CEMP could have potential impacts on the North Sydney ZS project in the following ways:

• Detrimental impacts on the environment;

• Fines and/ or prosecution notices for environmental breaches; and

• Damage to the reputation of Ausgrid.

8.4 Hold Point Register Table 8-1 presents the environmental hold points identified through the approvals framework that are relevant to the North Sydney ZS project.

Table 8-1 – Hold Point Register

Issue Condition Responsibility

CEMP � Prior to commencement of construction the CEMP will be endorsed by the project ER and approved by DPI.


ER � Prior to commencement , the proponent will nominate and obtain approval from the Director – General for a suitably qualified and experienced ER.


Dilapidation � Prior to commencement of construction and after construction is complete, the proponent will commission condition reports for all private or public land which is proposed to be either directly disturbed or otherwise during the project in accordance with Condition B4.

Copies of the reports will be provided to Council and RTA.

� Prior to the completion of construction works all works associated with the project that interface with public land (driveways, kerb and guttering, footpaths and stormwater drainage) will be designed in consultation with and to meet the design standards and any reasonable requirement of the relevant authority (Council and RTA). All public roads disturbed or damaged as part of the project will be designed and reconstructed in consultation with and to meet the design




standards and any reasonable requirement of the relevant authority (Council and RTA).

Community / Consultation

� Prior to commencement of construction of the project, the proponent will maintain dedicated pages within its existing website for the provision of electronic information associated with the project subject to confidentiality.

� Prior to the commencement of construction of the project, the proponent will prepare and implement a CIP which sets out the community consultation processes to be undertaken during construction and operation of the project.

� A Community Involvement Plan (CIP) will be prepared and submitted to the Director-General for approval prior to implementation.

� Prior to the commencement of construction of the project, the proponent will establish a community complaints procedure for the life of the Project.

Energy2U Alliance Community Liaison Officer

Traffic � A Construction Traffic Management Plan will be prepared prior to commencement and incorporated into construction programme.

� The Construction Traffic Management Plan will be submitted to DPI for approval prior to commencement.

� The Traffic Management Plan and controls will be implemented prior to commencement of construction.


Heritage � If during the course of construction the Proponent becomes aware of any Aboriginal object(s) and/or material, including human remains, all work likely to affect the object(s) and/or materials will cease immediately and the relevant organisation contacted (i.e. Ausgrid’s ESU, OEH and the Metropolitan Aboriginal Land Council, will be informed in accordance with the National Parks and Wildlife Act 1974. A suitably qualified archaeologist will assess the object(s) and/or material to determine significance. Relevant works will not recommence until written authorisation from OEH is received by Ausgrid.

� If during the course of construction the Proponent becomes aware of any Non-Indigenous heritage object(s) and/or material, including human remains, all work likely to affect the object(s) and /or materials will cease immediately and the relevant organisations contacted (i.e. Ausgrid, OEH in accordance with the Heritage Act 1977. A suitably qualified archaeologist will assess the object(s) and/or material to determine significance. Relevant works will not recommence until written authorisation from OEH is received by Ausgrid.

Note: NSW Police is also to be contacted if human remains are found.


Noise � A Construction Noise and Vibration Management Plan will be prepared and implemented prior to commencement .

� Prior to construction, suitable notification, including hours of works, anticipated duration and complaints hotline phone




number, will be provided to communities and stakeholders who are likely to be directly impacted by construction at least 48 hours prior to commencement of construction activities.

Air quality � Should visible dust emissions occur at any time, the Proponent will identify and implement all practicable dust mitigation measures, including cessation of relevant works, as appropriate, such that emissions of visible dust cease.


Compliance � Prior to the commencement of construction, the proponent will develop and implement a Compliance Tracking Program for the project.




APPENDIX A – ENVIRONMENTAL POLICY STATEMENT



APPENDIX B – CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN



APPENDIX C – TRAFFIC MANAGEMENT PLAN



APPENDIX D – EROSION AND SEDIMENT CONTROL PLAN



APPENDIX E – COMMUNITY INVOLVEMENT PLAN



APPENDIX F – RISK ASSESSMENT MATRIX



APPENDIX G – DEWATERING PROTOCOL

May 2012

North Sydney Zone Substation Redevelopment

Construction Noise and Vibration Management Plan

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QUALITY INFORMATION Document : North Sydney Zone Substation Construction Noise and Vibration Management Plan

Ref: N8603

Date: 8 May 2012

Prepared by : Kirsten Evans, Deborah Bowden

Reviewed by : Catherine Brady, Phil Gates, Phil Bratby and Hugh Madden

REVISION HISTORY

Authorised

Revision Revision date Details Name/position Signature

A 5 December 2010 Draft Kirsten Evans Project Manager

B 7 December 2010 Draft for EMR review Kirsten Evans Project Manager

C 7 May 2011 Final for DoP approval Kirsten Evans Project Manager

D 8 May 2012 Modifications to sensitive receivers, vibration monitoring, cable vault noise mitigation

Kirsten Evans Project Manager

Level 4, 799 Pacific Highway, Chatswood 2067 Australia

T +61 2 9414 3333 F +61 2 8339 9456 E [email protected] W www.energy.com.au

The Energy2U Alliance brings partners Ausgrid, Leighton Contractors Pty Ltd, AECOM Australia Pty Ltd and PowerServe Pty Ltd together to undertake works for Ausgrid’s Overflow Infrastructure Project.

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CONTENTS

1 Introduction 4

1.1 Overview 4

1.2 Environmental Management System Overview 4

1.3 Structure of this Sub-plan 4

2 Sensitive Receivers 5

3 Noise Management Levels and Criteria 6

3.1 Noise 6

3.2 Vibration 8

4 Construction Noise Sources and Work Hours 12

4.1 Noise assessment – construction 12

4.2 Noise assessment – excavation and construction of cable vault 13

4.3 Approved Work Hours 13

5 Mitigation Measures 15

5.1 Noise 15

5.2 Vibration 17

6 Noise and Vibration Monitoring 18

6.1 Noise 18

6.2 Vibration 18

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1 INTRODUCTION

1.1 Overview The purpose of this Construction Noise and Vibration Management Plan (CNVMP) is to describe how Energy2U Alliance proposes to manage noise and vibration impacts associated with the North Sydney Zone Substation Redevelopment project.

The CNVMP addresses the following project components:

• Construction of a new 132kV/11kV North Sydney zone substation at 3-11 Ward Street.

• Excavation and construction of a cable vault at the junction of Ward Street and Berry Street.

The excavation for the proposed substation has already been completed as part of a separate approval.

Key objectives of the CNVMP are to:

• Minimise noise generated during construction activities.

• Minimise the vibration experienced in the vicinity of the construction works.

• Manage and control noise generated during construction activities.

• Minimise adverse effects of the construction on the amenity of nearby business, residents and other sensitive land uses.

This CNVMP, and related procedures and forms (outlined within the wider Construction Environmental Management Plan (CEMP)), is applicable to all Energy2U Alliance staff and subcontractors associated with the North Sydney zone substation redevelopment project.

1.2 Environmental Management System Overview The site specific controls relevant to the project are described within the CEMP and relevant sub-plans to the CEMP, including this CNVMP. This CNVMP forms part of the Energy2U Alliance environmental management suite of documents prepared for the project.

This CNVMP describes high-level protocols, procedures, safeguards and management measures that will be implemented to mitigate and minimise potential noise and vibration impacts to the community and environment during the construction works.

1.3 Structure of this Sub-plan This sub-plan has been developed with the aim of providing a clear and concise record of mitigation and management measures that will be implemented for the construction components of the project outlined in Section 1.1.

The remainder of this sub-plan is structured as follows:

Chapter 2 presents the sensitive receivers proximate to the North Sydney zone substation redevelopment.

Chapter 3 outlines the noise management levels and vibration criteria applicable to the project.

Chapter 4 describes the construction noise sources and proposed working hours.

Chapter 5 describes the mitigation measures proposed to manage the predicted construction noise and vibration impacts associated with the project.

Chapter 6 outlines the noise and vibration monitoring proposed for the construction phase of the project.

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2 SENSITIVE RECEIVERS

The project will be located in the North Sydney CBD. Sensitive receivers in the vicinity of the project site include the following:

• 76 Berry Street – high rise commercial building (People Telecom building) with restaurant on ground floor, to the east and south-east corner of the site;

• 45 McLaren St – a medium rise residential building on the corner of McLaren and Harnett Streets

• A multi storey public car park on the western side of Ward Street and directly to the north of the site

• 77-81 Berry Street – a high rise residential tower on Berry Street, directly opposite the entrance to Ward Street.

Two approved development applications currently exist for 136-142 Walker Street. The application is for developments that would comprise the construction of a 22 storey mixed use development across 136-142 Walker Street. The noise assessment considered potential noise and vibration impacts on this proposed future development. At the time of writing a third development application had been lodged with North Sydney Council that would comprise a mixed use development across 136, 138-140 and 142 Walker Street.

An approved development application exists for 144-150 Walker Street which will comprise construction of an eight storey mixed use development. The potential noise impact on the proposed development at 144-150 Walker Street was considered within the noise assessment.

Refer to Appendix A for a map of surrounding properties.

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3 NOISE MANAGEMENT LEVELS AND CRITERIA

3.1 Noise

3.1.1 Construction noise management levels The Office of Environment and Heritage (OEH) Interim Construction Noise Guidelines (ICNG) is the appropriate guideline for use in construction noise assessments and is to be used when establishing specific construction noise management levels for a particular project.

Noise management levels are to be set for the standard working hours and are to be complied with where reasonably practicable. Work that is proposed outside of standard working hours generally requires strong justification.

The ICNG states that the noise and vibration construction management plan should detail the ‘best practice’ construction methods to be used, presenting a reasonable and feasible approach.

The ICNG defines what is considered to be feasible and reasonable as follows:

Feasible:

A work practice or abatement measure is feasible if it is capable of being put into practice or of being engineered and is practical to build given project constraints such as safety and maintenance requirements.

Reasonable:

Selecting reasonable measures from those that are feasible involves making a judgment to determine whether the overall noise benefits outweigh the overall adverse social, economic and environmental effects, including the cost of the measure.

Predicted noise levels at nearby noise sensitive receivers (residential, commercial and industrial premises) are compared to the levels provided in Section 4 of the ICNG.

Where an exceedance of the criteria is predicted the ICNG advises that the proponent should apply all feasible and reasonable work practices to minimise the noise impact.

Section 4 of the ICNG also classifies noise criteria into the following categories:

• Airborne noise; • Ground-borne noise; • Sleep disturbance at residences; • Blasting and vibration; and • Predicting noise levels – quantitative assessment.

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3.1.2 Airborne Noise Criteria for residential receivers are set using the information in Table 3-1.

Table 3-1 – Noise at residences using quantitative assessment

Time of day Management Level L Aeq, (15min)

1 How to apply

Recommended standard hours:

Monday to Friday 7 am to 6 pm

Saturday 8 am to 4pm

No work on Sundays or public holidays unless otherwise approved.

Noise affected

RBL + 10 dB

The noise affected level represents the point above which there may be some community reaction to noise.

• Where the predicted or measured LAeq, (15 min) is greater than the noise affected level, the proponent should apply all feasible and reasonable work practices to meet the noise affected level.

The proponent should also inform all potentially impacted residents of the nature of works to be carried out, the expected noise levels and duration, as well as contact details.

Highly noise affected

75 dB(A)

The highly noise affected level represents the point above which there may be strong community reaction to noise.

• Where noise is above this level, the relevant authority (consent, determining or regulatory) may require respite periods by restricting the hours that the very noisy activities can occur, taking into account:

• Times identified by the community when they are less sensitive to noise (such as before and after school for works near schools, or mid-morning or mid-afternoon for works near residences

• If the community is prepared to accept a longer period of construction in exchange for restrictions on construction times.

Outside recommended standard hours

Noise affected RBL + 5 dB

• A strong justification would typically be required for works outside the recommended standard hours.

• The proponent should apply all feasible and reasonable work practices to meet the noise affected level.

• Where all feasible and reasonable practices have been applied and noise is more than 5 dB(A) above the noise affected level, the proponent should negotiate with the community.

For guidance on negotiating agreements see section 7.2.2 (ICNG).

The Noise Management Levels applicable to the construction works have been calculated based on the RBLs detailed in the Noise and Vibration Assessment (Appendix F of the Environmental Assessment (Energy2U Alliance, 2010)) and Table 3-1 and are outlined in Table 3-2 below.

1 Noise levels apply at the property boundary that is most exposed to construction noise, and at a height of 1.5 m above ground level. If the property boundary is more than 30 m from the residence, the location for measuring or predicting noise levels is at the most noise-affected point within 30 m of the residence. Noise levels may be higher at upper floors of the noise affected residence.

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Table 3-2 – Noise management levels applicable to the proposed North Sydney substation works

Date Noise Levels – dB(A)

Day Night

RBL 54 46

Residential management level LAeq, (15min) 64 51

Office management level L Aeq 70

Café / Restaurant 55 (Internal)

3.1.3 Sleep disturbance at residences The ICNG recommends that a quantitative assessment be carried out where construction works are planned over more than two consecutive nights. Factors that may be important in assessing the extent of impact on sleep include how often high noise events occur at night, the predicted maximum noise levels at night, whether there are times when there is a clear change in the noise environment and the degree of maximum noise levels above the background noise level at night.

The ICNG refers to the NSW Environmental Criteria for Road Traffic Noise (EPA 1999) (ECRTN). The following summary of the identified ECRTN sleep arousal issues gives recommendations for noise criteria to control maximum internal noise levels. The intent of a sleep arousal criterion is to ensure that the amenity of sleeping areas is protected and sleep arousal, beyond reasonable limits is avoided.

The following characteristics of a noise signal are identified as being strongly related to sleep disturbance:

• The peak level of the noise events, described by either LA1, (1minute) or LAmax;

• The emergence of noise events above the general ambient noise level, described by measures such as (LAmax – LAeq) or (LAmax – LA90); and

• The number of such noise events occurring during the sleeping period.

A comparison of the existing research on sleep arousal results in the following conclusions:

• Appropriate screening criteria are determined to be an LA1, (1 minute) level 15dB(A) above the Rating Background Level (RBL) for the night-time period;

• Maximum internal noise levels below 55 dB(A) are unlikely to cause awakening reactions (this is equivalent to an external noise level of 65 dB(A) allowing for a 10 dB(A) noise reduction for windows open for natural ventilation); and

• One or two noise events per night, with maximum internal noise levels of 70 dB(A), are not likely to significantly affect health and well being.

Based on the above discussion, we recommend that maximum internal noise levels in a sleeping area are assessed against the following sleep arousal criteria:

• One or two noise events per night are permitted to exceed 55 dB(A) internally by up to 15 dB(A);

• The remaining construction noise events in the night period (10pm to 7am) should not exceed 55 dB(A) LAmax internally.

3.2 Vibration

3.2.1 Ground-borne noise Vibration generated by compacting enters buildings via the ground. This causes the floors, walls and ceilings to vibrate and radiate noise. This noise is commonly referred to as structure or ground-borne noise or regenerated noise. Noise generated by activities such as underground rock breaking work is referred to as ground-borne noise.

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Regenerated noise levels are often masked by air-borne noise associated with the construction activities. In general, ground-borne noise level values are relevant only where they are higher than the airborne noise from the construction activities. Ground-borne noise goals are outlined in the ICNG and listed below:

Evening (6pm to 10pm) - Internal: LAeq (15min) 40 dB(A)

Night-time (10pm to 7am) - Internal: LAeq (15min) 35 dB(A)

Ground-borne noise levels are applicable during the evening and night time periods only, as the objectives are to protect the amenity and sleep of people when they are at home. The ground-borne noise goals are only applicable when ground-borne noise levels are higher than airborne noise levels.

3.2.2 Vibration In general, the human response to vibration is found to be a complex phenomenon. There are wide variations in vibration tolerance of humans and accordingly acceptance goals for human comfort are hard to define and quantify. Acceptable values of human exposure to vibration are primarily dependent on the activity taking place in the occupied space (e.g. workshop, office, or residence) and the character of vibration (e.g. continuous or intermittent).

Any construction vibration assessment for work which does not include blasting is to include human comfort for construction in accordance with the guideline Assessing Vibration – a technical guideline (DECCW 2006).

Assessing Vibration – a technical guideline (DECCW 2006) The guideline Assessing Vibration – a technical guideline (DECCW 2006) for vibration assists in protecting people from significant levels of vibration above preferred and maximum values felt inside buildings. The guideline, however, does not address vibration induced damage to structures or building contents, or structure-borne noise effects.

Vibration and its associated effects are usually classified as continuous, impulsive or intermittent as follows:

• Continuous vibration: Machinery, steady road traffic, continuous construction activity such as tunnel boring;

• Impulsive vibration: Infrequent, activities that create up to 3 distinct vibration events in an assessment period, e.g. occasional dropping of heavy equipment, occasional loading and unloading ; and

• Intermittent vibration: Trains, nearby intermittent construction activity, impact pile driving, jack hammers.

When applying the criteria, it is important to note that vibration may enter the body along different orthogonal axes, i.e. x-axis (back to chest), y-axis (right side to left side), or z-axis (foot to head). The three axes are referenced to the human body. Thus, vibration measured in the horizontal plane should be compared with x- and y-axes criteria if the concern is for people in an upright positions, or with the y- and z- axes criteria if the concern is for people in a lateral position (e.g. asleep at night). Where the orientation of the occupant is unknown or could vary, then the most conservative approach should be adopted.

Human comfort continuous vibration criteria

Structural vibration in buildings can be detected by the occupants and can affect them in many ways including reducing their quality of life and also their working efficiency. Complaint levels from occupants of buildings subject to vibration depend upon the use of the building and the time of day.

Maximum allowable magnitudes of building vibration with respect to human response are shown in Table 3-3 below. It should be noted that the human comfort criteria are more stringent than the building damage criteria.

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Table 3-3 - Human comfort vibration limits for continuous vibration

Type of space Occupancy

Time of Day

Vertical Horizontal

mm/s (peak) mm/s (peak)

Residential Day 0.3 - 0.6 0.8 - 1.6

Night 0.2 - 0.4 0.6 - 1.2 Adapted from BS6472

Human comfort intermittent vibration criteria

Disturbance caused by vibration will depend on its duration as well as its magnitude. This method involves the calculation of a Vibration Dose Value (VDV) which is used to evaluate the cumulative effects of bursts of intermittent vibration. Various studies have shown that VDV assessment methods more accurately assess the level of disturbance than methods which assess the vibration magnitude only.

The VDV is a calculation which is measured as metres per second 1.75 (m/s1.75) and represents the amount of vibration which accumulates over the assessment period. The VDV criteria are shown in

Table 3-4 - Acceptable vibration dose values for intermittent vibration (m/s 1.75)

Time Period Low Probability of Adverse Comment

Residential Buildings Day (16 hr) 0.2 - 0.4

Residential Building Night (8hr) 0.13 - 0.26

Offices / Restaurant 0.4 - 0.8 Notes: Daytime is 7.00am to 10.00pm; Night-time is 10.00pm to 7.00am

Structural damage vibration criteria

Ground vibration criteria are defined in terms of levels of vibration emission from the works that will avoid the risk of damage to buildings and other structures. It should be noted that human comfort criteria are normally referred to in terms of acceleration whereas structural damage criteria are normally referred to in terms of velocity.

Most commonly specified ‘safe‘ structural vibration levels are design to minimise the risk of threshold or cosmetic surface cracks and are set well below the levels that have the potential to cause damage to the main structure. Examples of threshold or cosmetic cracking include minor non-structural effects such as superficial cracking in cement render or plaster. Structural damage criteria are presented in British Standard BS7385-Part 2:1993 Evaluation and Measurement for Vibration in Buildings (BS7385).

B7385 provides recommended maximum levels of vibration that reduce the likelihood of cosmetic damage caused by vibration. Table 3-5 indicates the vibration limits presented in BS7385 to ensure cosmetic damage does not occur.

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Table 3-5 - Structural damage vibration limits (PPV)

Type of building

Peak Component particle velocity in frequency range of predominant pulse

4 Hz to 15 Hz 15 Hz and above

1. Reinforced or framed structures Industrial and heavy commercial buildings

50 mm/s and 4 Hz and above

2. Dwellings and buildings of similar design and/or use

15 mm/s at 4 Hz increasing to 20 mm/s at 15 Hz

20 mm/s at 15 Hz increasing to 50 mm/s at 40 Hz and above

Vibration limits for equipment in existing substation

The level of vibration that might trip equipment in the existing substation was not been able to be quantified prior to construction, and during the initial period of excavation works, existing equipment was closely monitored until it was determined that there was no impact on existing equipment.

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4 CONSTRUCTION NOISE SOURCES AND WORK HOURS

4.1 Noise assessment – construction Preliminary calculations have been conducted for the equipment expected to be used during the construction of the proposed substation. Noise management levels (NMLs) have been compared to the calculated noise levels expected to be produced by the construction equipment (assuming that no noise control measures are in place) and exceedances of these NML’s have been determined.

Table 4-1 shows the different noise levels and exceedances at the nearest sensitive residential receivers during the daytime for the likely types of equipment that will be utilised during construction of the substation.

Table 4-1 – Estimated Construction Noise Levels at Residential Receivers – Daytime Only

PLANT AND EQUIPMENT IN OPERATION

LAeq NOISE LEVEL – dB(A)

No Noise Controls Exceedance of the

NML’s

NML’s (refer

Table 9-3)

Crane 69 2

Day: 64

Truck & Trailer 68 1

25T Concrete Mixer 78 11

Concrete pump 76 9

Jackhammer 84 17

Noise emissions at residential receivers during the construction phases of the project are predicted to exceed the daytime NML’s by 1 to 17 dB(A).

Table 4-2 shows the different noise levels and exceedances at the nearby restaurant and offices during the construction of the substation (daytime only) for the different types of equipment.

Table 4-2 – Estimated Construction Noise Levels at Restaurant and Offices – Daytime Only

PLANT AND EQUIPMENT IN OPERATION

LAeq NOISE LEVEL – DB(A)

No Noise Controls

Exceedance of the NML’s

NML’s (refer Table 9-3)

Restaurant Office Restaurant Office

Jackhammer 84 19 14

Day: 55 (Internal) Day: 70

Crane 69 4 -

Truck & Trailer 68 3 -

25T Concrete Mixer 78 13 8

Concrete pump 76 11 6

Table 4-2 shows that the predicted noise impacts during construction of the proposed substation and demolition of the existing substation would be between 3 and 19 dB(A) above the NML’s at the adjacent restaurant and office building.

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4.2 Noise assessment – excavation and construction of cable vault

1. Noise from the cable vault works has been mitigated via a metal shed with two walls and a roof constructed over Ward Street’s entire width. The enclosure is 14 metres long, open at both ends and lined with acoustic insulation panels (Sorberbarrier ALR25-05-06).

Excavation works for the cable vault will take approximately 3 months.

The noisiest piece of equipment will be the use of a pneumatic rock breaker. An assessment based on the abovementioned noise mitigation for constructing the cable vault is presented in Table 4-3.

Table 4-3 - Estimated construction noise levels

Location

LAeq Noise level, dB(A)

Day time NML’s, dB(A)

Option 1 and 2

Residences across Berry St 60 outside*

Residential during day: 64 outside

Office during day: 70 outside

Retail across Berry St to south east 62 outside

Offices adjacent to cable vault 70-75 outside

Option 3

Residences across Berry St 64-66 outside

Retail across Berry St to south east 66-68 outside

Offices adjacent to cable vault 75-80 outside*

*The estimated noise levels outside the offices exceed the NMLs as presented in the ICNG. The estimated noise levels inside will be 25 dB(A) lower with the windows closed. As such, noise levels inside the office are likely to be between 50 and 55 dB(A). To put this in perspective, a typical office environment would be in the range of 40 to 45 dB(A) with no one talking and 60 to 65 dB(A) in a call centre. Measures to mitigate and manage these temporary exceedences are presented in Chapter 5 of this CNVMP.

4.3 Approved Work Hours Construction works for the North Sydney Zone Substation (including the cable vault and associated cabling) will be undertaken in accordance with the Conditions of Approval which are as follows:

Condition C4 With the exception of construction works associated with cable installation and the cable vault along Ward and Berry Streets as specified in condition C5 the Proponent shall only undertake construction activities associated with the project that would generate an audible noise at any sensitive receptor during the following hours:


a) 7:00 am to 6:00 pm, Mondays to Fridays; b) 7:00am to 7:00pm Mondays to Fridays for concrete works; c) 7:00am to 10:00pm Mondays to Fridays for concrete finishing works; d) 8:00 am to 5:00 pm on Saturdays; and e) at no time on Sundays or public holidays.

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a) 7am to 12.30 pm and 2.30 pm to 6pm, Monday to Fridays; b) 8am to 12.00 pm and 1.00 pm to 5pm Saturdays; and c) at no time on Sundays or public holidays.


Condition C5 The Proponent shall only undertake construction activities associated with cable installation and the cable vault along Ward and Berry Streets that would generate an audible noise at any sensitive receptor during the following hours:


a) 7:00 am to 6:00 pm, Mondays to Fridays; b) 8:00 am to 5:30 pm, Saturdays and Sundays; and c) at no time on public holidays.


a) 7am to 12.30 pm and 2.30 pm to 6pm, Monday to Fridays; b) 8am to 12.00 pm and 1.00 pm to 5.30 pm Saturdays and Sundays; and c) at no time on public holidays.


Condition C6

The hours of construction hours specified under conditions C4 and C5 of this approval may be varied with the prior written approval of the Director-General. Any request to alter the hours of construction specified under conditions C4 and C5 shall be: a) considered on a case-by-case basis; b) accompanied by details of the nature and need for activities to be conducted during the

varied construction hours including alternatives considered; c) accompanied by details of the likely noise levels at nearest sensitive receptors with and

without mitigation; d) accompanied by details of all reasonable and feasible measures identified to minimise noise

impact at nearest sensitive receptors; e) accompanied by details of consultation and notification undertaken with surrounding

receptors and where relevant written evidence of agreements entered into with receptors for works outside of standard construction hours; and


Condition C7 A report providing details of noise complaints received during weekend or evening/ night time works approved under conditions C4, C5 or C6 shall be submitted to the Director-General on a weekly basis identifying what action has been taken by the Proponent in response to the complaints and identifying complaints that remain unresolved. The Director-General has the right to revoke or amend the hours of work approved under conditions C4, C5 or C6 in response to ongoing or unresolved complaints.

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5 MITIGATION MEASURES

5.1 Noise Construction of the proposed substation

The activities carried out and equipment used during construction of the substation will produce a reduced level of noise than during excavation. In addition the use of quieter plant and equipment such as an electric tower crane will result in substantially less noise than a traditional diesel powered crane.

In addition, perimeter scaffolding will be erected as construction of the building’s structure progresses in height. At low level, this scaffold will be provided with a painted plywood cladding on the restaurant side, which will provide a physical barrier as well as reducing the noise transmitted from the site.

Where an exceedance of criteria is predicted, the ICNG advises that the proponent should apply all reasonable and feasible work practices to minimise the noise impact.

Excavation and construction of the cable vault

The cable vault activities will be shielded by one of three options to reduce noise levels (refer Section 4.2).

Construction noise and vibration impacts associated with the proposed substation and excavation of the cable vault will be managed by noise and vibration engineering control and management techniques as outlined below.

General measures regarding construction planning, use of plant and equipment and work practices

� Noisy activities will be conducted in as short a time period as possible with minimum delays.

� Offset distance between noisy plant items and nearby noise sensitive receivers will be maximised.

� Noisy plant and equipment working simultaneously and adjacent to sensitive receivers will be avoided, where practicable.

� Where possible, equipment with directional noise emissions will be orientated away from sensitive receivers.

� Noisy plant will be located away from potentially noise affected neighbours or behind barriers, such as sheds or walls.

� Loading and unloading will be carried out away from sensitive receivers, where practicable.

� Consecutive works in the same locality will be minimised, where practicable.

� Plant that is not being used will be turned off.

� Alternative work practices which generate less noise will be considered and implemented – for example, use electric equipment instead of diesel or petrol powered equipment.

� The use of silenced equipment and noise shielding around stationary plant (such as generators), will be considered and implemented where feasible and reasonable, subject to manufacturers’ design requirements.

� Plant will be regularly maintained, and repaired or replaced if it becomes noisy (due to lack of servicing).

� The work site will be arranged to minimise the use of movement alarms on vehicles and mobile plant.

� Where practicable, reversing beepers on trucks will be replaced with low pitch tonal beepers (quackers) after 10 pm (should work hours be amended to include night time).

� Mobile plant such as excavators and other diesel operated machinery will be fitted with silencing equipment, where practicable, if works are planned out of standard operating hours.

� Low noise machinery will be selected where practicable (e.g. electric instead of internal combustion, vibratory piling instead of impact).

� Plant and equipment will be operated and maintained in an efficient and proper manner.

16

� Dropping materials from a height, either into or out of trucks, trays or bins will be avoided.

� Vehicle speeds will be restricted on, or near, the work site.

� Intermittently used machinery will be shut down or throttled down when not in operation.

� Rowdy behaviour will be avoided on work sites, such as shouting, radios and inappropriate vehicle use.

� Plant or machinery will not be ‘warmed up’ before the nominated working hours.

� All construction vehicles will enter and leave the site in accordance with site entry controls.

� Construction works for the proposed substation and cable vault will be undertaken as per the Conditions of Approval.

Community notification

It is predicted that noise levels associated with the construction activities for the construction of the substation will exceed the noise management levels determined for the project. The ICNG advises that where noise levels are predicted to exceed the noise management levels, alternative construction methodologies will be considered. If no reasonable and feasible options can be found, community consultation measures will be undertaken. The following community consultation initiatives will be undertaken to complement the mitigation measures outlined above.

� Potentially noise affected neighbours will be contacted at the earliest possible time before any site work begins. Affected properties will be suitably notified in relation to hours of works and anticipated duration of noisy activities. This notification will include approaching in person and letterbox drops. Letter box drops will occur a minimum of seven days ahead of proposed construction works, where possible.

� An information display may be erected in the foyer of 77-81 Berry Street and other information posted in prominent locations in the building to advise residents of the progress of the cable vault works. The information will describe any noise controls, such as walls/shields that will reduce noise, temporary noise walls, or use of silenced equipment.

� Potentially noise affected neighbours will be informed about the nature of the construction stages and the duration of noisier activities – for example, excavation and rock-breaking.

� Contact details will be provided on a site board at the front of the project site.

� A copy of the noise and vibration management plan will be provided to potentially noise affected neighbours if requested.

Noise and vibration enquiries and complaints

Energy2U will take all reasonable and feasible means to prevent complaints or structural damage arising from noise and vibration.

� Noise or vibration complaints will be addressed in a timely manner, in accordance with the Incidents and Complaints Management Procedure. A procedure for handling customer enquiries and complaints is outlined in the CIP presented as Appendix E to the CEMP.

� All community and stakeholder enquiries and complaints will be registered in a community and stakeholder database and addressed. The community relations hotline number will be provided to the community and stakeholders who will potentially be directly impacted by construction at least 48 hours prior to commencement of construction activities. Refer to section 5.1.1 of the CIP (Appendix E to the CEMP).

� Noise monitoring at selected receivers may be undertaken to investigate complaints regarding noise impacts. If a complaint is made and the noise and/or vibration levels have not exceeded the permitted levels, a review of the issue will still be carried out and where feasible and reasonable, alternative construction methods will be considered.

17

5.2 Vibration Construction of substation

The activities carried out and equipment used during construction will cause significantly less vibration than during excavation. There were no exceedences of vibration criteria during the excavation for the new substation. As such, it is envisaged that construction of the new substation will not raise any vibration-related issues.

General mitigation measures to reduce potential vibration impacts associated with the construction of proposed and existing substations will include:

� All construction vehicles entering and leaving the site in accordance with site entry controls.

� Ground vibration levels will be continuously monitored at selected receivers and during selected activities undertaken for the construction works.

Any damage to buildings or structures attributable to vibration from construction activities will be rectified within a reasonable period, at no cost to the property owners.

Cable vault

Vibration impacts will be most likely to occur during the excavation of the cable vault and trenches. Continuous rockbreaking close to affected receivers may raise complaints and will require management measures prior to commencement of excavation. The vibration dose values and regenerated noise levels experienced at affected receivers will be controlled by the following measures:

� Source controls

• Use of less noise and vibration intensive equipment (e.g. sawing of trenches prior to rockbreaking, rotary cutting and reducing the size of the rockbreaker).

• Adhering to the respite periods outlined in Conditions of Approval.

� Management methods

• Community consultation as outlined within the CIP. • Vibration logging and attended measurements.

� Path controls

• Avoid vibration intensive works in a concentrated area and try to work over a large area in order to reduce maximum vibration dose values, i.e. changing the location of excavation such as working opposite corners/edges.

18

6 NOISE AND VIBRATION MONITORING

6.1 Noise Monitoring for compliance with relevant noise, vibration and ground-borne noise goals will be undertaken. Measures for monitoring will include attendant monitoring for day time and weekend works (airborne and ground-borne noise) and during the evening and night time, should night work hours be approved. Contractors and workforce will be informed of noise sensitive neighbours.

Noise monitoring results will be collated and analysed, and if results show that permitted levels are being consistently exceeded, alternative methods and/or equipment for carrying out the relevant activities will be reviewed.

A noise monitoring regime is outlined below:

Monitoring Schedule Locations Procedure Attended noise monitoring

Monitoring will target noisy activities, such as jackhammers and concrete pours, at sensitive times i.e. early morning and work undertaken on Saturday and Sunday and any approved after hours work.

Residential receivers at 77-81 Berry Street

Inside Bel Paese restaurant at 76 Berry Street (for substation excavation)

Inside commercial premises located at 66 Berry St (initially)

Identified by neighbor complaints.

Acoustic engineer will attend site at the commencement of construction, and first noisy activity, and for training purposes.

Spot measurements by E2U personnel during noisy activities or in response to neighbour complaints

Measurements at affected receiver when operating the noisy equipment such as but not limited to:

• Concrete mixer • Concrete pump • Jackhammer • Rock breaker • Concrete saw

6.2 Vibration Vibration monitoring will be in place during construction of the substation and excavation of the cable vault to determine minimum buffer distances. A vibration monitoring regime is outlined below:

Monitoring Schedule Locations Procedure Attended during vibration intensive activities

At commencement of construction of cable vault to determine location of unattended monitoring and/or when required

Existing substation

66 Berry Street on ground and top floor

Spot measurements where required. At most 1 day per month during the construction of the cable vault

Unattended vibration monitoring

Construction of cable vault

Existing substation

66 Berry Street on ground and top floor

Two monitors with two geophones at each location:

- Substation x 2 geophones

- 66 Berry Street x2 on ground

- 66 Berry Street x1 on roof for a short period to determine if adverse effects exist between ground and roof.

Note that monitoring on the ground of 66 Berry Street and substation would be the duration of constructing the cable vault.

19

The purpose of the monitor on the roof is to show that there are no additional vibration effects, such as vibration amplification up the floors of the building. If this is the case, the vibration engineer may decide to remove this monitor.

Monitors visible to the construction personnel will have flashing lights to alert personnel to an exceedence of a pre-determined level. This alert system will ensure appropriate action can be taken immediately. A noise and vibration engineer will be able to remotely download vibration data to monitor vibration effects on buildings in locations not easily accessible to construction personnel.

Measurements will be analysed two days following commencement of the excavation for the cable vault, then every two weeks thereafter until the completion of the works. If results show that permitted levels are being consistently exceeded, alternative methods of carrying out the relevant activities will be reviewed.

Each monitor contains two transducers to ensure vibration in the general vicinity of the potential impact is recorded (as opposed to a single point which may not be representative of a location) and to maximise the accuracy of results.

June 2011

North Sydney Zone Substation

Traffic Management Plan for Zone Substation

energy2U Alliance North Sydney Traffic Management Plan Rev D - June 2011 2

QUALITY INFORMATION Document: North Sydney Zone Substation – Traffic Management Plan

Ref: N8603

Date: May 2011

Prepared by: Deborah Bowden

Reviewed by: Kirsten Evans

REVISION HISTORY

Authorised


A 27/07/2010 Draft Kirsten Evans

Project Manager

B 29/11/2010 Draft Kirsten Evans

Project Manager

C 08/05/2011 Final for approval Kirsten Evans Project Manager

D 09/06/2011 Modified to reflect DoPI comments

Kirsten Evans

Project Manager





CONTENTS

1 Introduction 4

1.1 Purpose of this plan 4

1.2 Scope 4

1.3 Project description 4

1.4 Programme 4

1.5 Construction Hours 4

2 Construction Activities and Impacts 7

2.1 Description 7

2.2 Construction Activities 7

2.3 Site Access Points 7

2.4 Material Haulage Operations 8

2.5 Construction Site Office 8

2.6 Road Network 9

2.7 Potential Impacts 9

3 Traffic Management Measures 12

3.1 Description 12

3.2 Road user delay minimisation 12

3.3 Traffic control plans 12

3.4 Contingency plans 13

3.5 Environmental controls 14

3.6 Consultation and Communications 15

Appendix A – Site Layout 16

Appendix B – Traffic Control Plan 17


1 INTRODUCTION

1.1 Purpose of this plan This Traffic Management Plan (TMP) describes the road safety and traffic management measures that will be implemented by Energy2U during the construction of the North Sydney Zone Substation and associated infrastructure. The TMP is based on the principles and strategies outlined in Section 10.1 of the Program Environmental Management Plan.

1.2 Scope This TMP applies to the construction activities that will be undertaken for the North Sydney Substation during the site construction of the substation building and base infrastructure, and excludes excavation which was completed as part of a separate approval.

This TMP will describe the construction activities, their potential impacts on the road network, and the specific measures to be applied to mitigate the overall impacts.

1.3 Project description The project consists of the construction of a new five level enclosed substation. Construction work includes construction of the concrete and brick structure, façade cladding, roofing installation and minor external pavement works. The project also involves construction of a cable vault at the intersection of Ward and Berry Streets, North Sydney. The cable vault will comprise a three metre deep reinforced concrete pit at the junction of Ward and Berry streets, approximately 17m long x 8m wide. The works consist of excavation, structure construction and services diversions and will be carried out generally during the day and on weekends as appropriate. The cable vault works are the subject of a separate TMP.

1.4 Programme The program of works is expected to be as follows:

Construction Works: May 2011 – May 2012

Installation of Cable Vault: June 2011 – March 2012 (the actual date will be confirmed once a Road Occupancy Licence (ROL) is obtained from RTA).

1.5 Construction Hours Approved construction hours for the zone substation will be as follows:

Condition C4 With the exception of construction works associated with cable installation and the cable vault along Ward and Berry Streets as specified in condition Error! Reference source not found., the Proponent shall only undertake construction activities associated with the project that would generate an audible noise at any sensitive receptor during the following hours:


a) 7:00 am to 6:00 pm, Mondays to Fridays; b) 8:00 am to 5:00 pm on Saturdays; and c) at no time on Sundays or public holidays.











Condition C6

The hours of construction hours specified under C4 and C5 of this approval may be varied with the prior written approval of the Director-General. Any request to alter the hours of construction specified under conditions C4 and C5 shall be: a) considered on a case-by-case basis; b) accompanied by details of the nature and need for activities to be conducted during the


without mitigation; d) accompanied by details of all reasonable and feasible measures identified to minimise noise

impact at nearest sensitive receptors; e) accompanied by details of consultation and notification undertaken with surrounding

receptors and where relevant written evidence of agreements entered into with receptors for works outside of standard construction hours; and



Condition C7

A report providing details of noise complaints received during weekend or evening/ night time works approved under conditions C4, C5 or C6 shall be submitted to the Director-General on a weekly basis identifying what action has been taken by the Proponent in response to the complaints and identifying complaints that remain unresolved. The Director-General has the right to revoke or amend the hours of work approved under conditions C4, C5 or C6 in response to ongoing or unresolved complaints.


2 CONSTRUCTION ACTIVITIES AND IMPACTS

2.1 Description Energy2U will sequence the construction works to maximise safety for workers and road users, maintain existing capacity, minimise road user delays and avoid major activities during peak periods.

2.2 Construction Activities The construction activities to be undertaken by Energy2U during construction of the base infrastructure for the substation redevelopment will include:

Construction works for the main building: This includes construction of a new five level enclosed substation, involving construction of the concrete and brick structure, façade cladding, roofing installation and minor external pavement works. Scaffolding will be erected at the perimeter of the site to facilitate the construction of the building. The work is expected to be carried out over 12 months, between June 2011 and July 2012. During concrete pours, up to 25 trucks per day will visit the site to make deliveries. However the number of trucks will be around 10 trucks per day during the remainder of the construction period. A concrete pump will be located in the Work Zone on Harnett Street for concrete pumping activities until the structure has progressed to a level that enables concrete to be pumped from inside the new building.

As Harnett Street is narrow and the width of the site is limited, trucks will not be able to turn on-site and exit in forward direction. To enter and exit the site safely, it is considered necessary for trucks to reverse into the site and exit safely in forward direction. These trucks will approach the site from McLaren Street and reverse into Harnett Street under traffic control. Trucks will approach the site using three methods:

Turning off McLaren Street into Harnett Street in a forward direction and turning around within the site, exiting Harnett Street in a forward direction. This would be the method of access during the initial stage of excavation works; and

Reversing into Harnett Street to the site then exiting via Harnett Street in a forward direction. This method of access will be implemented at the later stages of excavation when trucks are no longer able to turn around on-site.

During concrete pours a concrete pump will be parked outside the construction zone with the front of the pump facing the construction site and up to two concrete supply trucks reversed down the street and backed onto the end of the pump.

Harnett St may need to be closed in entirety for specific short term activities such as tower crane erection and dismantling. This will be undertaken at times that provide minimum impact to the community, in consultation with North Sydney Council, and the community will be notified in accordance with the Community Involvement Plan.

2.3 Site Access Points Two construction access points will be established to facilitate construction activities for the substation, including:

Trucks will reverse down Harnett Street from McLaren Street to enter the site, and then exit the site in forward direction.

Work will be carried out progressively in sections of Ward Street and Berry Street, under a Road Occupancy Licence to be obtained from the RTA (refer TMP for cable vault).


2.4 Material Haulage Operations Energy2U recognises that the effective management of haulage operations is not only critical to the success of the project, but is also necessary to minimise the impact on the road network and to maintain the safety of pedestrians. The proposed haulage routes for material to be transported on public roads by haulage trucks and disposed to landfill (i.e. during demolition) are presented below. The construction of this project will involve minimal excavation as the majority of it was undertaken as part of a separate approval.

2.4.1 Ward Street Site Access

Entry

From North: Trucks would approach from Warringah Freeway, U-turn around Military Road Island into Falcon Street, left onto Pacific Highway, left into Berry Street, left into Ward Street and right onto site.

From South: Trucks would approach from Warringah Freeway (northbound), left into Pacific Highway, right onto Berry Street, left into Ward Street and right onto site.

Exit

To North: From site, left onto Ward Street, left onto Berry Street and left onto Warringah Freeway.

To South: From site, left onto Ward Street, left onto Berry Street and right onto Warringah Freeway.

2.4.2 Harnett Street Site Access

Entry

From North: Trucks would approach from Warringah Freeway, left into Military Road, U-turn around Military Road Island into Falcon Street, left onto Miller Street, left into McLaren Street, right into Harnett Street and then onto site.

Alternatively, trucks may approach from Warringah Freeway, exit onto Alfred Street, go around the Alfred Street roundabout, turn right into High Street, then merge into the Pacific Highway, right into Walker Street, left into McLaren Street and then left into Harnett Street.

From South: Trucks would approach from Warringah Freeway (northbound), left into Pacific Highway, right into Miller Street, right into McLaren Street, right into Harnett Street left and then onto site.

Alternatively, trucks would approach from Warringah Freeway, left into the Pacific Highway, right into Walker Street, left into McLaren Street, left into Harnett Steet and then onto site.

Exit

To North: From site, straight onto Harnett Street, left onto McLaren Street, left into Miller Street, left into Berry Street and left onto Warringah Freeway.

To South: From site, straight onto Harnett Street, left onto McLaren Street, left into Miller Street, left into Berry Street and right onto Warringah Freeway..

2.5 Construction Site Office The site office will be located in a portion of Harnett Street carpark that has been leased from North Sydney Council. This offers the best proximity to each of the worksites, thus minimising travel time. The location of the site office is shown in TCP-E2U-0003 in Appendix A.

No on-site parking is available for staff and visitors to the site. Staff and visitors to the site will park in the various public carparks and the on-street metered parking in North Sydney and walk to the


office or site. Other staff and construction workers will utilise the public transport facilities (trains and buses) available in the North Sydney area to access the site. The availability of public transport and lack of on-site parking will encourage the use of public transport and minimise traffic and parking impacts resulting from the construction works.

2.6 Road Network The construction of this project will impact on the existing traffic flows along the roads in close proximity to the site including Harnett Street, Ward Street, McLaren Street, Walker Street, and Berry Street. However, as detailed in Section 3 of this plan, Energy2U will aim to isolate work areas, keep road user delays to an absolute minimum and maintain access for businesses, residents, pedestrians and cyclists.

The main features of the roads affected by the project are as follows:

McLaren Street – is around 11m wide between kerbs and has two traffic lanes and two parking lanes. It has sealed footpath on both sides. The speed limit is 40km/h. Parking restrictions (metered parking) exist on both sides. It forms a T-intersection with Harnett Street and also Walker Street.

Harnett Street – is a local road running southward from McLaren Street. It provides access to the Harnett Street carpark and two other private developments. It is 6m wide between kerbs. Metered parking is installed on the western side while the eastern side is signposted as “No Parking”.

Walker Street – forms a T-intersection with McLaren Street. Speed limit is 40km/h. South of McLaren Street it has two traffic lanes and one parking lane. Parking is restricted to one hour or two hours metered parking.

Ward Street – is a local road running north from Berry Street. Its northern end is closed and its main purpose is to provide access to a public carpark (Wilson Parking). Pedestrians use Ward Street to access the carpark from Berry Street.

Berry Street – is an arterial road running east-west between Pacific Highway and the Warringah Freeway. It has two traffic lanes and two parking lanes (one on each side). Clearway restrictions exist during peak hours (6:00am-10:00am and 3:00pm-7:00pm, Monday to Friday)

2.7 Potential Impacts An assessment of the road network directly affected by the construction activities has been undertaken and findings outlined below:

Construction Traffic Volumes

The following table shows the numbers and destinations of estimated truck movements generated at each construction activity during peak construction activity.

Table: Construction Traffic Volumes from Proposed Fill Sources

CONSTRUCTION

ACTIVITY

DURATION

ESTIMATED TRUCK

MOVEMENTS PER DAY (TWO-

WAY)

ESTIMATED TRUCK

MOVEMENTS PER HOUR

(TWO-WAY)

Concrete Pours

Seven months (three

times per week). Part

of construction duration

below.

50 6

Building Construction 13 months 20 2


The potential number of trucks that would be generated by the construction works is very low compared to the volume of traffic in the North Sydney CBD. Therefore the impact of these works on traffic operation will be low.

Pedestrian and cyclists As the project is located in the North Sydney CBD area, regular pedestrian movements occur on the footpath and across the road network at various locations. Pedestrian facilities include footpaths, marked foot crossings, signalised pedestrian crossings at intersections and mid-blocks, and pedestrian refuge islands.

Bicycle facilities in the North Sydney CBD area consist mainly of on-road cycle facilities and storage facilities on the footpath.

The existing pedestrian facilities and access for residents in Harnett Street will be maintained.

Where pedestrian facilities will be impacted by the construction works, such as in Ward Street, traffic and pedestrian management measures will be implemented to minimise the impacts. Ward Street will become a shared zone during construction works.

Public transport

The public transport provisions in the North Sydney CBD include:

City Rail Trains;

Buses (operated by Sydney Buses and other private companies); and

Taxis.

The Energy2U Alliance will continue to consider the potential impact on bus routes and bus stop facilities when preparing temporary work drawings and Traffic Control Plans. Generally Energy2U will maintain existing facilities, however if this cannot be achieved, equivalent temporary facilities will be provided. All temporary facilities will be developed and constructed in accordance with the RTA, North Sydney Council and Transport NSW requirements.

It is unlikely that this proposal will have any effect on bus routes or bus stops. In the unlikely event that a bus route or bus stop is affected, any proposed changes will be discussed with the operators prior to the commencement of works, and notifications will be provided to the passengers.

Traffic generating developments

Observation on-site indicated that there is currently no development or construction works in the vicinity of the project that would conflict with the proposed construction works.

Access to properties

Energy2U considers that minimising the impact and maintaining the amenity of local residents in the vicinity of the construction works is very important. In this regard, various environmental and traffic management measures will be applied, in particular those measures that maintain access to the road network.

Energy2U will maintain existing property access points and access to community facilities.

All proposed changes to existing access arrangements will be discussed with residents and businesses prior to the commencement of works. Energy2U has consulted, and will continue to consult with the owners of the following properties concerning the effect of the proposed works on access to their properties:

Wilson Carpark in Ward Street – Trucks will use Ward Street to access the site during the excavation stage, outside of car park peak flow times. The footpath on the eastern side of Ward Street will be closed, and on-street carparking on the western side will be removed temporarily


during construction. There will be no changes to the traffic movement pattern into and out of Ward Street, and the potential impact on Ward Street will be minimal.

No. 41 McLaren Street – Traffic movement into and out of the driveway for No. 41 McLaren Street will be affected when a truck is reversing into Harnett Street. The reversing of trucks will occur under traffic control, and where required, such as during peak entry and exit times, a traffic spotter will be stationed at the exit driveway of No 41 to provide guidance to exiting traffic. In addition, the number of reversing movements will be low, around three movements per hour. The proposal is considered to be safe and the impact will be low.

A private property with a single car space at the southern end of Harnett Street (rear of 142 Walker Street). Access to and from this car space will be maintained at all times or a suitable alternative arrangement will be negotiated with the affected party during activities such as a concrete pour.


3 TRAFFIC MANAGEMENT MEASURES

3.1 Description Energy2U acknowledges the effective management of traffic and the provision of a safe road environment is paramount to the success of this project. To achieve these objectives, various measures and techniques will be applied, which are detailed in the below.

3.2 Road user delay minimisation Measures that can be applied to minimise road user delays are generally divided in four categories: design, isolation of work areas, work methods and road occupancy planning. Energy2U will apply the following measures to minimise road user delays:

develop temporary works that avoid conflicts with the existing road network where possible, maximise separation between work areas and travel lanes, isolate work areas and maintains existing road network capacity;

isolate work areas from traffic flows (e.g. using alternative routes, temporary sidetracks, lane deviations / widenings and temporary safety barriers);

develop alternative work methods to minimise impacts (e.g. utilise more efficient plant / equipment, apply different design solution, enclosed work platforms);

plan all road occupancies with the aim to:

minimise the actual work area,

limit obstructions and restrictions,

maximise the roads capacity, and

avoid peak traffic flow periods;

analyse traffic volume data to:

identify the capacity requirements of the road,

assess the potential impact on traffic flows, and

identify to best time to minimise the inconvenience to road users; and

provide road users with changed traffic condition information to enable them to plan their journey and avoid the road work.

3.3 Traffic control plans Traffic Control Plans have been developed to satisfy the following aims:

Warn drivers of changes to the usual road conditions,

Inform drivers about changed conditions,

Guide drivers through the work site, and

Safety for workers, motorists, pedestrians and cyclists.

The TCPs prepared by Energy2U are based on Australian Standard 1742.3 and the RTA’s “Traffic Control at Worksites” Manual.

A TCP has been developed for traffic management for construction access via Harnett Street.

All activities for the main construction works will be carried out within the site. However, due to the restricted space on the site, loading and unloading will be carried out in a “Works Zone” at the


southern end of Harnett Street. A separate “Works Zone” application for this area has been approved by North Sydney Council. As Harnett Street is narrow (6m between kerbs) and closed at the southern end, construction trucks will not be able to turn around and exit the “Works Zone” in forward direction. It is therefore proposed to implement the following traffic management measures for trucks access from McLaren Street to Harnett Street during construction:

Accredited traffic controllers (one for each direction) will stop traffic in both directions in McLaren Street;

When a truck is reversing into Harnett Street, barrier boards will be used to close the footpath on the southern side of McLaren Street on either side of Harnett Street to control pedestrian movement;

Trucks will then reverse from McLaren Street into Harnett Street and into the proposed “Works Zone” on the western side of Harnett Street;

A spotter will be located at the exit driveway of No. 41 McLaren Street as required to provide guidance to exiting vehicles when a truck is reversing into Harnett Street.

This measure will have negative impact on traffic operation in McLaren Street and Walker Street. However, the impact of this measure on traffic in McLaren Street and Walker Street will not be significant as a maximum of 25 trucks per day or approximately 3-4 trucks per hour will be involved. Trucks will park in the proposed “Works Zone” during loading and unloading and there will be no queuing of trucks in McLaren Street or Harnett Street. Advanced warning signs will be installed in Walker Street on the approaches to the intersection of McLaren Street and in McLaren Street on approaches to the intersection of Harnett Street.

Also the southern section of Harnett Street, from the boundary of the Works Zone to the southern end of Harnett Street will be closed. The residential property will be empty during construction as it is proposed to be demolished and redeveloped as part of a multi-unit development.

Warning signs, “Prepare to Stop” and “Road Closed” will be installed on the approach to the site. Barrier boards will also be installed across the road at the closed section.

A plan (TCP-E2U-00003) showing the proposed construction access via Harnett Street is provided in Appendix B.

3.4 Contingency plans Energy2U will develop contingency plans for all traffic control operations, which will be incorporated into the relevant Safe Work Method Statements (SWMSs). The incidents may include:

excessive traffic congestion;

late finishing road work;

equipment breakdowns;

poor weather conditions; and

unplanned incidents.

The table below briefly outlines the various actions, in respect to traffic management, which will be applied for these types of incidents.

INCIDENT ACTION

Excessive Traffic

Congestion

Notify the RTA Transport Management Centre (TMC) immediately, and update accordingly.

Where possible, cease work and remove restrictions.


INCIDENT ACTION

Modify traffic control and implement end of queue management.

Activate variable message sign (VMS) messages.

Where works cannot be removed, adjust program and expedite completion.

Re-assess traffic volumes and only re-occupy the road when sufficient capacity exceeds demand.

Late Finishing

Road work

Notify the TMC immediately, and update accordingly.

Where possible, cease work, remove restrictions and reprogram activity.

Where works cannot be removed, monitor traffic flows and modify traffic controls / resources.

Expedite completion of works.

Equipment Breakdown



Where works cannot be removed, source replacement equipment, make safe, or utilise another work method.

Modify traffic control and monitor traffic flows.

Activate VMS messages.

Poor Weather

Conditions

Access risk / hazards, if necessary postpone and reprogram works.

If works proceed, modify traffic control and source additional equipment to enhance safety.



Continue to monitor conditions, and if necessary cease work and remove restrictions.

Unplanned Incidents

Notify the TMC immediately, update accordingly.


Modify traffic control and manage site until emergency services / RTA arrive.


Support emergency services / RTA, as required.

When instructed by TMC, recommence works.

3.5 Environmental controls Energy2U will implement various environmental controls and measures to mitigate the impacts on surrounding environment and road network, including:

the compulsory covering of all loads prior to leaving the site;

provision of suitable wheel cleaning facilities at all major access points;

dust suppression measures conducted regularly at loading/unloading areas and along the routes;

clean-up crews, including street sweepers, will be available to manage material spills;

all materials will be managed in strict accordance with Major Project Conditions of Approval and any subsequent approvals.


3.6 Consultation and Communications Energy2U has already commenced proactive consultation and communication with the community, RTA, North Sydney Council, emergency service agencies and key stakeholders, and these protocols will continue during construction works.

Energy2U will employ various communication tools to disseminate information in regards to traffic and transport for the project. Where applicable, these may include advertisements in the local newspaper, community letterbox notifications and the use of portable VMS on approach to road works.

energy2U Alliance North Sydney Traffic Management Plan - May 2011 16

APPENDIX A – SITE LAYOUT


APPENDIX B – TRAFFIC CONTROL PLAN

20m

20m

20m

60m

T1-200-1*

T1-18

T1-18

20m

20m

20m

60m

T1-200-1*

T1-18

T1-200-1*

T1-18

A spotter

15m

15m

15m

30m

Construction Access to Site from Harnett Street

Date: 08/06/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Traffic Control Plan for Construction Access via Harnett Street

Comments:

1. Signs are to be covered when not in use2. Traffic Controllers to stop traffic in McLaren Street( both directions) only when a truck is reversing into Harnett Street,3. Barrier boards are to be installed across the southern footpath of McLaren Street (either side of Harnett Stree to control pedestrians only when a truck is reversing into Harnett Street.4. All Traffic Controllers must be fully accredited.5. All signs are to be of Size B and of Class 1 retro-reflective material.

Approx 15m

T1-18

10m

www.invarion.com

20m

20m

20m

60m

T1-200-1*

T1-18

T1-18

20m

20m

20m

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Date: 19/04/2012 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Traffic Control Plan for Construction Access via Harnett Street

Comments:1. Signs are to be covered when not in use2. Traffic Controllers to stop traffic in McLaren Street( both directions) only when a truck is reversing into Harnett Street,3. Barrier boards are to be installed across the southern footpath of McLaren Street (either side of Harnett Stree to control pedestrians only when a truck is reversing into Harnett Street.4. All Traffic Controllers must be fully accredited.5. All signs are to be of Size B and of Class 1 retro-reflective material.

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www.invarion.com


T1-18Date: 10/06/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Traffic Control Plan for Harnett Street - Outside Working Hours

Comments:

1. Signs are to be covered when not in use

2. All signs are to be of Size B and of Class 1 retro-reflective material.

www.invarion.com

May 2011

North Sydney Zone Substation

Traffic Management Plan for Cable Vault


QUALITY INFORMATION Document: North Sydney Zone Substation – Traffic Management Plan for Cable Vault

Ref: N8603

Date: 8 May 2011

Prepared by: Deborah Bowden

Reviewed by: Kirsten Evans

REVISION HISTORY

Authorised


A 27/07/2010 Draft for internal review Kirsten Evans

Project Manager

B 29/11/2010 Draft Kirsten Evans

Project Manager

C 08/05/2011 Final for approval Kirsten Evans Project Manager

D 14/06/2011 Modified to incorporate Construction Safety Essentials and work hours

Kirsten Evans

Project Manager





CONTENTS

1 Introduction 4

1.1 Purpose of this plan 4

1.2 Scope 4

1.3 Project description 4

1.4 Programme 4

1.5 Construction Hours 4

2 construction Activities and Impacts 7

2.1 Description 7

2.2 Construction Activities 7

2.3 Site Access Points 7

2.4 Material Haulage Operations 8

2.5 Construction Site Office 8

2.6 Road Network 8

2.7 Potential Impacts 9

3 Traffic Management Measures 11

3.1 Description 11

3.2 Road user delay minimisation 11

3.3 Traffic control plans 11

3.4 Contingency plans 13

3.5 Environmental controls 14

3.6 Consultation and Communications 14

Appendix A – Trafic Control Plans for works in Berry and Ward Streets 15

Appendix B – Traffic Volumes 16


1 INTRODUCTION

1.1 Purpose of this plan This Traffic Management Plan (TMP) describes the road safety and traffic management measures that will be implemented by Energy2U during the excavation and construction of a cable vault at the intersection Ward and Berry Streets. The cable vault will comprise a three metre deep reinforced concrete pit at the junction of Ward and Berry streets, approximately 17m long x 8m wide. The works consists of excavation, structure construction and services diversions and will be carried out generally during weekdays and on weekends as appropriate. The cable vault works are required as part of a wider project that comprises redevelopment of the North Sydney zone substation.

The TMP is based on the principles and strategies outlined in Section 10.1 of the Program Environmental Management Plan.

1.2 Scope This TMP applies to the construction activities that will be undertaken at the North Sydney Substation during the excavation and construction of the cable vault, services relocation and trenching for new cables.

This TMP will describe the construction activities, their potential impacts on the road network, and the specific measures to be applied to mitigate the overall impacts.

1.3 Project description The works involve the excavation and construction of an in-ground cable vault at the intersection of Ward and Berry Streets North Sydney. The cable vault is approximately 8m wide x 17m long x 3m deep. Existing gas, communications, stormwater and water services will be diverted around the new pit, and the existing sewer and optical fibre will remain in place and be protected during construction in accordance with the requirements of the respective authorities.

The 17m long cable vault will extend from Ward to part of Berry Street (approximately 6m from the kerb line). This will require closure of two lanes in Berry Street during construction. To minimise the impact on traffic movement in Berry Street, the works will be carried out during weekdays and on weekends as agreed with RTA. Night time works may also be undertaken but only with prior approval from Department of Planning and Infrastructure. In addition, trenching for new 11kv cables to serve the new substation will be carried out in Ward and Harnett Streets. The trenching in Harnett Street will be carried out in the southern section of the street and therefore involve no closure of traffic lanes.

1.4 Programme The construction of the cable vault, services relocation and trenching for new cables is expected to be carried out from June 2011 to March 2012.

1.5 Construction Hours Construction works for the North Sydney Zone Substation (including the cable vault and associated cabling) will be undertaken in accordance with the Conditions of Approval which are as follows:

Condition C4 With the exception of construction works associated with cable installation and the cable vault along Ward and Berry Streets as specified in condition C5, the Proponent shall only undertake


construction activities associated with the project that would generate an audible noise at any sensitive receptor during the following hours:


a) 7:00 am to 6:00 pm, Mondays to Fridays; b) 8:00 am to 5:00 pm on Saturdays; and c) at no time on Sundays or public holidays.










Condition C6

The hours of construction specified under C4 and C5 of this approval may be varied with the prior written approval of the Director-General. Any request to alter the hours of construction specified under condition C4 and C5 shall be: a) considered on a case-by-case basis; b) accompanied by details of the nature and need for activities to be conducted during the


without mitigation;



e) accompanied by details of consultation and notification undertaken with surrounding receptors and where relevant written evidence of agreements entered into with receptors for works outside of standard construction hours; and


Condition C7

A report providing details of noise complaints received during weekend or evening/ night time works approved under conditions C4, C5 or C6 shall be submitted to the Director-General on a weekly basis identifying what action has been taken by the Proponent in response to the complaints and identifying complaints that remain unresolved. The Director-General has the right to revoke or amend the hours of work approved under conditions C4, C5 or C6 in response to ongoing or unresolved complaints.


2 CONSTRUCTION ACTIVITIES AND IMPACTS

2.1 Description Energy2U will sequence the construction works to maximise safety for workers and road users, maintain existing capacity, minimise road user delays and avoid major activities during peak periods.

2.2 Construction Activities The construction activities to be undertaken by Energy2U during construction of the cable vault for the substation redevelopment will include:

Establishment of main site accommodation: As part of the preparation for the current construction works for the main substation building, the North Sydney Council’s off-street carpark in Harnett Street has been leased to house site accommodation for project personnel. This will continue to be used as site accommodation during the construction of the cable vault in Berry and Ward Streets.

Construction of cable vault at intersection of Ward and Berry Streets: The cable vault is a three metre deep reinforced concrete pit at the junction of Ward and Berry streets, approximately 17m long x 8m wide. The works consists of excavation, structure construction, high voltage cable installation and jointing, and services diversions in Berry Street and Ward Street. As this will require closure of two traffic lanes in Berry Street, the work will generally be carried out at during weekdays and on weekends as appropriate, with some night works where amended work hours are approved by Department of Planning and Infrastructure. The Berry Street works will be covered with road plates after each shift to allow normal traffic movement over the works area, and the Ward Street works will be staged to ensure vehicular and pedestrian access is maintained during weekdays in consultation with relevant stakeholders. The works are expected to be carried out between June 2011 and March 2012. A maximum of 10 trucks will visit the site during each shift. Construction trucks will park in the ticket parking areas on the northern side of Berry Street and in Ward Street.

Excavation of cable trenches in Ward and Harnett Streets: Trenches for new cables to the new substation will be constructed in Ward Street and Harnett Street. The excavated trenches will be covered with cold mix or road plates after each shift to allow normal traffic movement after the shift. To minimise impact on traffic operation, the works will be carried out during a similar time frame as the construction of cable vault at the intersection of Ward and Berry Streets. A traffic control team will provide guidance to traffic in Ward Street during these works. Trenching in Harnett Street will be carried out in the lower section of the street.

The impacts of the above works on traffic and pedestrian movements in Berry and Ward Streets have been assessed and are classified below. Traffic Management measures to address the impacts and manage traffic and pedestrian movements during the works are discussed in Section 3.

o Berry Street Roadworks at Night

o Berry Street Roadworks in the Weekend daytime

o Berry Street Roadworks in the weekday during off-peak hours (10:00am-3:00pm)

o Ward Street Weekday Works

o Ward Street Lane Closure at Night

2.3 Site Access Points A number of construction access points will be implemented to facilitate construction activities. The main construction site access points are:


Berry Street: Two traffic lanes will be closed on the northern side of the street to facilitate the works. Construction vehicles will access the works area by driving directly into the works and park in the ticket parking area on the northern side of Berry Street.

Ward Street: Construction trucks will access the work area by turning left from Berry Street and park in the ticket parking area on the western side of Ward Street. Trucks that are not able to drive directly into Ward Street will reverse into the parking area in Ward Street under traffic control.

2.4 Material Haulage Operations Energy2U recognises that the effective management of haulage operations is not only critical to the success of the Project, but is also necessary to minimise the impact on the road network and to maintain the safety of pedestrians. The excavation of trenches and the cable vault will result in spoil that will need to be transported and disposed to an appropriately licensed disposal facility. Spoil will generally not be stockpiled onsite due to a lack of available space. Trucks will also be required to deliver materials used in the construction of the cable vault and trenches.

The proposed haulage routes for the excavated material to be transported on public roads by haulage trucks are presented below.

2.4.1 Ward Street Site Access

Entry

From North: Trucks would approach from Warringah Freeway, U-turn around Military Road Island into Falcon Street, left onto Pacific Highway, left into Berry Street, left into Ward Street and right onto site.

From South: Trucks would approach from Warringah Freeway (northbound), left into Pacific Highway, right onto Berry Street, left into Ward Street and right onto site.

Exit

To North: From site, left onto Ward Street, left onto Berry Street and left onto Warringah Freeway.

To South: From site, left onto Ward Street, left onto Berry Street and right onto Warringah Freeway.

2.5 Construction Site Office The site office will be located on the ground floor of the Harnett Street carpark. This offers the best proximity to each of the worksites, thus minimising travel time. The location of the site office is shown in the site plan (TCP-E2U-00001) in Appendix A.

No on-site parking is available for staff and visitors to the site. Staff and visitors to the site will park in the various public carparks and the on-street metered parking in North Sydney and walk to the office or site. Other staff and construction workers will utilise the high level of public transport facilities (trains and buses) available in the North Sydney area to access the site. The availability of public transport and lack of on-site parking will encourage the use of public transport and minimise traffic and parking impacts of the construction works.

2.6 Road Network The construction of this project will impact on the existing traffic flows along the roads in close proximity to the site. However, as detailed in Section 3 of this plan, Energy2U will aim to isolate work areas, keep road user delays to an absolute minimum and maintain access for businesses, residents, pedestrians and cyclists.

The main features of the roads affected by the project are as follows:


McLaren Street – is around 11m wide between kerbs and has two traffic lanes and two parking lanes. It has a sealed footpath on both sides. The speed limit is 40km/h. Parking restrictions (metered parking) exist on both sides. It forms a T-intersection with Harnett Street and also Walker Street.

Harnett Street – is a local road running southward from McLaren Street. It provides access to the Harnett Street carpark and two other private developments. It is 6m wide between kerbs. Metered parking is installed on the eastern side while the western side is signposted as “No Parking”.

Walker Street – forms a T-intersection with McLaren Street. Speed limit is 40km/h. South of McLaren Street it has two traffic lanes and one parking lane. Parking is restricted to one hour or two hours metered parking.

Ward Street – is a local road running north from Berry Street. Its northern end is closed and its main purpose is to provide access to a public carpark (Wilson Parking). Pedestrians use Ward Street to access the carpark from Berry Street.

Berry Street – is an arterial road running east-west between Pacific Highway and the Warringah Freeway. It has two traffic lanes and two parking lanes (one on each side). Clearway restrictions exist during peak hours (6:00am-10:00am and 3:00pm-7:00pm, Monday to Friday).

Miller Street – runs north south and forms a cross intersection with Berry Street. It has two traffic lanes and two parking lanes. The speed limit in Miller Street north and south of Berry Street is 40km/h

2.7 Potential Impacts An assessment of the road network directly affected by the construction activities has been undertaken and findings outlined below:

Construction Traffic Volumes

During the peak of construction works, there will be a maximum of 20 truck movements per day and four truck movements per hour. Traffic volume data shown in Appendix B indicates that Berry Street carries around 20,000 vehicles per day.

Thus the potential number of trucks that would be generated by the construction works is very low compared to the volume of traffic in the North Sydney CBD. Therefore the impact of these works on traffic operation will be low.

Pedestrian and cyclists As the project is located in the North Sydney CBD area, regular pedestrian movements occur on the footpath and across the road network at various locations. Pedestrian facilities include footpaths, marked foot crossings, signalised pedestrian crossings at intersections and mid-blocks, and pedestrian refuge islands.

Bicycle facilities in the North Sydney CBD area consist mainly of on-road cycle facilities and storage facilities on the footpath.

Where pedestrian facilities will be impacted by the construction works, such as in Ward Street and on the northern side of Berry Street, traffic and pedestrian management measures will be implemented to minimise the impacts. Diversion of pedestrians will be carried out in accordance with Australian Standards 1742.3 and 1742.10. Pram ramps will be provided in accordance with Australia Standard 1428.1. Ward Street will become a shared zone during construction works in consultation with North Sydney Council.

The footpath on the northern side of Berry Street between Miller Street and Walker Street will be intermittently closed during times when the works are being carried out. Pedestrians will be directed by signage at the intersections of Miller Street/Berry Street and Miller Street/Walker Street to use the footpath on the southern side to walk between the two streets. Pedestrian access to No 66 Berry Street will be maintained.


Public transport

The public transport provisions in the North Sydney CBD include:

City Rail Trains;

Buses (operated by Sydney Buses and other private companies); and

Taxis.

The Energy2U Alliance will continue to consider the potential impact on bus routes and bus stop facilities when preparing temporary work drawings and Traffic Control Plans. Generally Energy2U will maintain existing facilities, however if this cannot be achieved, equivalent temporary facilities will be provided. All temporary facilities will be developed and constructed in accordance with the RTA, North Sydney Council and Transport NSW requirements.

This proposal will not have any effect on current bus routes or bus stops. In the unlikely event that a bus route or bus stop is affected, any proposed changes will be discussed with the operators prior to the commencement of works, and notifications will be provided to the passengers.

Traffic generating developments

Observation on-site indicated that there is currently no development or construction works in the vicinity of the project that will conflict with the proposed construction works.

Access to properties

Energy2U considers that minimising the impact and maintaining the amenity of local residents in the vicinity of the construction works is very important. In this regard, various environmental and traffic management measures will be applied, in particular those measures that maintain access to the road network.

Energy2U will maintain existing property access points and access to community facilities.

All proposed changes to existing access arrangements will be discussed with residents and businesses prior to the commencement of works. Energy2U has consulted, and will continue to consult with the owners of the following properties concerning the effect of the proposed works on access to their properties:

Wilson Carpark in Ward Street – The construction of a cable vault at the intersection of Ward Street and Berry Street will be carried out in two stages such one traffic lane will be available to traffic entering and exiting Ward Street. This will allow traffic movement into and out of Ward Street under the guidance of accredited traffic controllers. The works will also be carried out at weekends when traffic movements into and out of the carparks are low. Part of the works may be undertaken at night but only with prior approval from Department of Planning and Infrastructure. The management of Wilson Parking will continue to be consulted to ensure that the impact of the works will be minimal.

No 66 Berry Street – The driveway to the loading dock for the business at No. 66 Berry Street is located in Ward Street. Access to this driveway will be maintained during construction. As stated above accredited traffic controllers will be provided in Berry and Ward Streets to provide guidance to vehicles accessing the properties in Ward Street. As the works will be carried out at specified times on weekdays and on weekends when the use of the driveway is minimal, the impact will be low. The management at No. 66 will continue to be consulted to minimise impact on the business.


3 TRAFFIC MANAGEMENT MEASURES

3.1 Description Energy2U acknowledges the effective management of traffic and the provision of a safe road environment is paramount to the success of this project. To achieve these objectives, various measures and techniques will be applied, which are detailed in the below.

3.2 Road user delay minimisation Measures that can be applied to minimise road user delays are generally divided in four categories: design, isolation of work areas, work methods and road occupancy planning. Energy2U will apply the following measures to minimise road user delays:

develop temporary works that avoid conflicts with the existing road network where possible, maximise separation between work areas and travel lanes, isolate work areas and maintains existing road network capacity;

isolate work areas from traffic flows (e.g. using alternative routes, temporary sidetracks, lane deviations / widenings and temporary safety barriers);

develop alternative work methods to minimise impacts (e.g. utilise more efficient plant / equipment)

plan all road occupancies with the aim to:

minimise the actual work area,

limit obstructions and restrictions,

maximise the capacity of the road, and

avoid peak traffic flow periods;

analyse traffic volume data to:

identify the capacity requirements of the road,

assess the potential impact on traffic flows, and

identify to best time to minimise the inconvenience to road users;

provide road users with changed traffic condition information to enable them to plan their journey and avoid the road work..

3.3 Traffic control plans Traffic Control Plans have been developed to satisfy the following aims:

Warn drivers of changes to the usual road conditions,

Inform drivers about changed conditions,

Guide drivers through the work site, and

Safety for workers, motorists, pedestrians and cyclists.

The TCPs prepared by Energy2U are based on Australian Standard 1742.3 and the RTA’s “Traffic Control at Worksites” Manual.

Traffic Control Plans have been developed for traffic management for works in Berry Street and Ward Street as follows:


Traffic Control Plans for Night Works in Berry Street

The works in Berry Street will affect two lanes on the northern side. The works will therefore require a Road Occupancy Licence (ROL) from the RTA. To minimise traffic operations in Berry Street, it is proposed to carry out the works during the day on weekdays and on the weekend when traffic movements are low. Initial discussions with the RTA Transport Management Centre indicate that two separate ROL applications need to be submitted, one for the weekdays and one for the weekend works.

The proposed hours of work will be subject to final conditions specified by RTA in the ROL and approved construction hours in the project Conditions of Approval. Traffic Volume Data obtained from the RTA’s Traffic volume Data for Sydney Region 2005, indexed to 2010, indicated that traffic volumes in Berry Street during the proposed times are below 1000 vehicles per hour.

Trucks would approach the site from Pacific Highway, turn into Berry Street and left into Ward Street. It is proposed to park some construction vehicles such as a franna crane and truck in the closed section of Berry Street during the works for movement of road plates. The remaining construction trucks will park on the ticket parking area on the western side of Ward Street. Trucks in Berry Street will be able to head east along Berry Street and exit via Warringah Freeway. Trucks that park in Ward Street will enter the main site for the substation to turn around, then left into Berry Street and straight into Warringah Freeway.

Accredited traffic controllers will direct traffic into and out of Ward Street. A traffic controller will also control traffic adjacent to the closed section in Berry Street if a truck is required to reverse into Ward Street. The potential impact on traffic operation will be low as the works will be carried out during off-peak hours and the maximum number of construction trucks during the peak activities will be 10 per shift (20 movements).

Advanced warning signs such as “Roadwork Ahead”, “Traffic Controllers Ahead”, and “Prepare to Stop” will be installed in Berry Street to warn drivers of changed traffic conditions. Advanced warning signs “Roadwork on Side Road” will be installed in Miller Street on both the northern and southern approaches to Berry Street.

Concrete barriers will be installed in the closed section of Berry Street to separate workers from traffic. These barriers will be removed before opening the lanes to traffic during each shift.

Pedestrian warning signs will also be installed on the northern footpath at the signalised intersections of Berry Street with both Miller and Walker Streets to warn pedestrians of footpath closure adjacent to the works area and to direct them to use the southern footpath to walk between Miller and Walker Streets.

To allow access to Ward Street, the works in Berry Street will be carried out in two stages with stage 1 works in the section south of Ward Street and Stage 2 north of Ward Street

Plans for stage 1 and stage 2 (TCP-E2U-0005 and TCP-E2U-0006 respectively) showing the proposed traffic arrangement are provided in Appendix A.

Traffic Control Plan for Weekend Works in Berry Street

Further works will be carried out in the weekend in Berry Street when traffic volume is low. Concrete barriers will also be installed during shift and removed after works. Two traffic lanes will be closed to carry out the works as for night works.

A Plan (TCP-E2U-0007) showing the proposed traffic management plan is provided in Appendix A.

Traffic Control Plan for Weekday Works in Berry Street

During the off-peak hours in the weekday, between 10:00am and 3:00pm, works will also be carried out in the kerbside lane of Berry Street. Traffic cones will be used to delineate the work area. In addition, a traffic control vehicle with flashing arrow will be parked in the closed lane to protect workers.


A Plan for (TCP-E2U-0008) showing the proposed traffic management plan is provided in Appendix A.

Traffic Control Plan for Weekday Works in Ward Street

Works will be carried out in Ward Street during the weekday, between 7:00am and 6:00pm. One traffic lane will be closed to allow works to be carried out. Traffic controllers will provide guidance to traffic entering and exiting the Ward Street carpark.

A plan (TCP-E2U-0009) showing the proposed traffic management plan is provided in Appendix A.

Traffic Control Plan for Weekday Works in Ward Street

Works will be carried out in Ward Street during the weekday, between 7:00am and 6:00pm. One traffic lane will be closed to allow works to be carried out. Traffic controllers will provide guidance to traffic entering and exiting the Ward Street carpark.


Traffic Control Plan for Night-time Lane Closure in Ward Street

Lane closure in Ward Street implemented during the daytime will be left overnight till the next day. To provide guidance to traffic entering and exiting Ward Street carpark, portable traffic signals will be installed at each end of the street.


3.4 Contingency plans Energy2U will develop contingency plans for all traffic control operations, which will be incorporated into the relevant Safe Work Method Statements (SWMSs). The incidents may include:

excessive traffic congestion;

late finishing road work;

equipment breakdowns;

poor weather conditions; and

unplanned incidents.

The table below briefly outlines the various actions, in respect to traffic management, which will be applied for these types of incidents.

INCIDENT ACTION

Excessive Traffic

Congestion

Notify the RTA Transport Management Centre (TMC) immediately, and update accordingly.


Modify traffic control and implement end of queue management.

Activate variable message sign (VMS) messages.

Where works cannot be removed, adjust program and expedite completion.

Re-assess traffic volumes and only re-occupy the road when sufficient capacity exceeds demand.


INCIDENT ACTION

Late Finishing

Road work


Where possible, cease work, remove restrictions and reprogram activity.

Where works cannot be removed, monitor traffic flows and modify traffic controls / resources.

Expedite completion of works.

Equipment Breakdown



Where works cannot be removed, source replacement equipment, make safe, or utilise another work method.

Modify traffic control and monitor traffic flows.


Poor Weather

Conditions

Access risk / hazards, if necessary postpone and reprogram works.

If works proceed, modify traffic control and source additional equipment to enhance safety.



Continue to monitor conditions, and if necessary cease work and remove restrictions.

Unplanned Incidents

Notify the TMC immediately, update accordingly.


Modify traffic control and manage site until emergency services / RTA arrive.


Support emergency services / RTA, as required.

When instructed by TMC, recommence works.

3.5 Environmental controls Energy2U will implement various environmental controls and measures to mitigate the impacts on surrounding environment and road network, including:

the compulsory covering of all loads prior to leaving the site;

provision of suitable wheel cleaning facilities at all major access points;

dust suppression measures conducted regularly at loading/unloading areas and along the routes;

clean-up crews, including street sweepers, will be available to manage material spills;

all materials will be managed in strict accordance with Major Project Conditions of Approval and any subsequent approvals.

3.6 Consultation and Communications Energy2U has already commenced proactive consultation and communication with the community, RTA, North Sydney Council, emergency service agencies and key stakeholders, and these protocols will continue during construction works.

Energy2U will employ various communication tools to disseminate information in regards to traffic and transport for the project. Where applicable, these may include advertisements in the local newspaper, community letterbox notifications and the use of portable VMS on approach to road works.

energy2U Alliance North Sydney Traffic Management Plan Rev C - May 2011 15

APPENDIX A – TRAFIC CONTROL PLANS FOR WORKS IN BERRY AND WARD STREETS


APPENDIX B – TRAFFIC VOLUMES

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Install PROJECT INFO SIGNon power pole on southern side

Install PROJECT INFO SIGNon new post on northern side

Wilson Carpark

Traffic controller to controltraffic in Berry Street whenever a truck is required to reverse into the work area

Work Area for newCable Trenches

ENDROAD WORK

15m

USE OTHER FOOTPATH TOWALKER STREET

FOOTPATHCLOSED

USE OTHER FOOTPATH TOMILLER STREET

H H

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Date: 28/10/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Berry Street Night Works - Stage 1 (West of Ward Street)

Comments:1. Not to Scale2. All signs are to be size B and of class 1 retor-reflective material3. All staff to have reflective vests

Traffic Control Plan for Berry Street Night Works - Stage 1

North Sydney Substation UpgradeTCP - E2U-00005

Prepared by: Kamoru AdetunmbiCertificate No: 2113007329

Truck withFlashing Arrow


Traffic Bollards withhelicopter tapes at 1.2m from traffic cones

ROAD

CLO

SED

SIDE ROADCLOSED

NOLEFTTURN

Install VMS board

PROJECT INFO SIGN

LEGEND

Roadworks Berry St

Jul 2011-Jun 2012

Delays ExpectedVMS No 1

For Information

call 1800 992 249

Roadworks on Berry StreetJul 2011 - Jun 2012, Delays ExpectedFor information call 1800 992 249

No Entry

To Ward StVMS No 2From Denison St

H H HParking Area for Construction Vehicles

Delineation materials Cones or Bollards @ 9m maximum spacing

WORK AREA

TRAFFIC BOLLARDS WITHHELICOPTER TAPES

VMS NO 1

VM

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Install VMS board facing Denison St

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Wilson Carpark


ENDROAD WORK

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FOOTPATHCLOSED


H H

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Date: 05/07/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Berry Street Night Works -Stage2

Comments:1. Not to Scale2. All signs are to be size B and of class 1 retro-reflective material3. All staff to have reflective vests4. Minimum of 300mm deflection zone must be provided behind barrier where noworkers or materials will be located5. Concrete barriers to have absorb 350 end protection

Traffic Control Plan for Berry St Weeknight Works- Stage2





Concrete Barriers toprotect workers

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SED NO

LEFTTURN

SIDE ROADCLOSED

Install VMS board

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PROJECT INFO SIGN

LEGEND

Roadworks Berry St

Jul 2011-Jun 2012


For Information

call 1800 992 249


No Entry




WORK AREA


FOOTPATHCLOSED


VMS NO 1

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Wilson Carpark

Accredited traffic controller to controltraffic in Berry Street whenever a truck is required to reverse into the work area


ENDROAD WORK

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FOOTPATHCLOSED


Date: 01/08/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Berry Street Weekend Works

Comments:1. Not to Scale2. All signs are to be size B and of class 1 retro-reflective material3. All staff to have reflective vests

Traffic Control Plan for Weekend Works in Berry StreetNorth Sydney Substation Upgrade

TCP - E2U-00007


Traffic Control Vehicleswith Flashing Arrow

Concrete Jersey Barrierto separate workers from traffic

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Install VMS board

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PROJECT INFO SIGN

LEGEND

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Jul 2011-Jun 2012


For Information

call 1800 992 249


No Entry




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Date: 14/03/2012 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Berry Street Weekend Works on Right Lanes

Comments:1. The Taxi Zone on the southern side of Berry Street is to be maintained2. All signs are to be size B and of class 1 retro-reflective material3. All staff to have reflective vests

Traffic Control Plan for Weekend Works in Berry Street(Right Hand Lanes)

North Sydney Substation UpgradeTCP - E2U-00007a


PROJECT INFO SIGN

LEGEND

Roadworks Berry St

Jul 2011-Jun 2012


For Information

call 1800 992 249


No Entry




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Date: 28/10/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Berry Street Weekday Works - Stage 1 (West of Ward Street)

Comments:1. Not to Scale2. All signs are to be size B and of class 1 retor-reflective material3. All staff to have reflective vests

PROJECT INFO SIGN

LEGEND

Roadworks Berry St

Jul 2011-Jun 2012


For Information

call 1800 992 249

Traffic Control Plan for Berry Street Weekday Works(10:00am-3:00pm)



Traffic Control Vehiclewith Flashing Arrow

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Traffic Controller to controlvehicles entering Ward Streetcarpark from footpath

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Date: 28/10/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Ward Street- Weekday Works (One Lane Closed)


Traffic Control Plan for Ward Street Weekday Works



Traffic Controller to control vehicles exiting ward street carpark

Traffic Controller to controlvehicles entering Ward Streetcarpark from footpath

30m

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PROJECT INFO SIGN

LEGEND

Roadworks Berry St

Jul 2011-Jun 2012


For Information

call 1800 992 249


No Entry




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Cable Trenches

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FOOTPATHCLOSED


Date: 28/10/2011 Author: Kamoru Adetunmbi Project: Energy 2U Alliance - North Sydney Substation UpgradeTitle: Ward Street Night Works


Ward St Traffic

Stop for Signals

One Lane Closed

Traffic Control Plan for Cable Vaults during Nights



Portable Traffic Signals facing traffic exitingWard Street carpark

Portable Traffic Signals facing traffic entering Ward Street


15m

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STOPHEREON REDSIGNAL

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(Lane Closure in Ward Street Outside Work Hours)

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www.invarion.com

Traffic Count Summary Report

Copyright 1996 Data displayed has been compiled from pneumatic traffic countprocesses and is subject to the documented limitations

CFE Information Technologies

CfeIT [email protected] (02) 9740 8600

Page : 1

Count Number

BERRY STREET, NORTH SYDNEY : From EDWARD STREET to ARTHUR STREET : EAST BOUNDStreet

Combined Counts 2818, 2819, 2821 and 2822 - Eastbound - Between Miller Street and Warringah ExpresswayLocation Carriageway

2893 LCTARUPRef :

27-NOV-08Start Date

7 DAYS1 HOURInterval

100Start TimeDurationTOTAL COUNT MATRIX

Midnight - 1am1am - 2am2am - 3am3am - 4am4am - 5am5am - 6am6am - 7am7am - 8am8am - 9am9am - 10am10am - 11am11am - MiddayMidday - 1pm1pm - 2pm2pm - 3pm3pm - 4pm4pm - 5pm5pm - 6pm6pm - 7pm7pm - 8pm8pm - 9pm9pm - 10pm10pm - 11pm11pm - Midnight

MON TUE WED THU FRI SAT SUN

717462310223265826

223456367111630653695587534252225865693074128446669847913620303821931569

143 92 62 45 53

165 447

1127 1422 1261 1074 1117 1068 1044 1173 1386 1482 1689 1340 958 724 608 439 314

199 135 85 62 63

144 362 885

1148 1071 947

1007 983 959

1002 1157 1227 1370 1108 823 622 527 402 297

1395944592437438

1007253461938033749866317046688167157015809885909592775757584353369028152079

17795 19343 19584 19691 19759 11145 8774

82 96 119 153 267 332 34647 64 64 87 200 239 24320 54 50 55 131 142 14036 39 47 41 60 103 11155 44 52 43 71 88 85

153 158 180 164 171 94 87443 437 489 418 447 184 116

1103 1180 1113 1106 1134 322 2351386 1421 1396 1468 1440 530 3921100 1255 1297 1370 1284 717 475

991 1155 1103 935 1185 695 567947 1123 1146 1133 1238 816 643992 1100 1057 1104 1089 881 658974 1106 899 1164 1079 850 643

1084 1206 1228 1166 1181 639 5111316 1340 1424 1422 1428 644 5241454 1465 1425 1544 1524 651 5271757 1810 1714 1574 1591 629 5171312 1304 1460 1426 1196 596 463

853 997 1087 962 892 516 451640 721 804 799 656 386 347486 576 639 810 527 369 283355 417 471 416 534 367 255209 275 320 331 434 355 155

Total Average Total Average

Total

7 Day5 Day

96172 11609119234 16584

44 19234 16584

Weekly 85th Percentile SpeedFive Day AADTSeven Day AADT

Weekly 50th Percentile Speed 31

UBD 216 D-11

1ST 2ND 3RD 27TH 28TH 29TH 30TH

Lat/Long : S33 50 15.0 / E151 12 30.8

WARD ST

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Water to be tested and pumped out from pit into watercart as required

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C

North Sydney Substation Redevelopment

Project Community Involvement Plan

energy2U Alliance North Sydney Zone Substation Community Involvement Plan Friday, 2 December 2011 2

QUALITY INFORMATION

Document Ref: N8603/CU/CIP

Last updated: 2 December 2011

Prepared by: Fiona Pennington, Communications Manager

Reviewed by: (see below)

REVISION HISTORY

Authorised

Rev Revision date Details Name/position Signature

1 19 Oct 2010 Update for environmental assessment approval/CEMP

Kirsten Evans/ Deborah Bowden

Reviewed

2 19 Oct 2010 Update for environmental assessment approval/CEMP

Adam Fitzpatrick Reviewed

3 29 Nov 2010 For Ausgrid approval Julie Walker/ Tony Boakes/ Phil Bratby

Reviewed

4 12 Jan 2011 For Part 3A Department of Planning (DoP) Conditions of Approval

Kirsten Evans Reviewed

5 2 Feb 2011 For Part 3A Department of Planning (DoP) Conditions of Approval

Julie Walker Reviewed

6 3 Mar 2011 Environmental Manager Rep’s independent review as per DoP Conditions of Approval

Eladio Perez, EMR Reviewed

8 11 July 2011 Revised with minor changes for KPI 1.1.

Kirsten Evans/ Ashley Robinson/ Julie Walker/ Paul Tapp/ Phil Bratby

Reviewed

2 Dec 2011 Revised with minor changes for second KPI 1.1

Kirsten Evans/


T 1 800 992 249 E [email protected] W www.ausgrid.com.au


mailto:[email protected]


CONTENTS

1 Introduction 5

1.1 Objectives 5

1.2 Project overview 5

1.2.1 Scope of works 5

1.2.2 Major project activities 6

1.2.3 Statutory requirements 6

1.2.4 Project location and surrounding area 6

1.2.5 Related Ausgrid projects 6

1.2.6 Other proximate developments 6

2 Risk assessment and management 8

2.1 Stakeholder identification 8

2.2 Risk and Issues 11

2.2.1 Community and stakeholder risk assessment 11

2.3 Issues management 12

3 Key Messages 16

4 Community involvement plan activities 18

4.1 Managing community consultation 18

4.1.1 Project contact 18

4.1.2 Community newsletters 18

4.1.3 Meetings and Briefings 18

4.1.4 Website 18

4.1.5 Signage 19

4.1.6 Site inductions 19

4.1.7 Advertising 19

4.1.8 Advance notification of construction works 19

4.1.9 Contact database 20

4.1.10 Media 20

4.1.11 Incident and emergency response communications 20

5 Consultation program 21

5.1.1 Program timing and activities for substation construction/demolition 21

Appendix A Managing Community Contact A


5.1.2 Contacts database A

5.1.3 Procedure for inquiries and complaints B

5.1.4 Escalated complaints management C

5.1.1 Contact response time C


1 INTRODUCTION

This Community Involvement Plan (CIP) has been prepared for the Energy2U Alliance’s construction of the North Sydney Substation Redevelopment project.

The CIP identifies specific project risks, stakeholders and issues, and guides the implementation of appropriate consultation and communication activities through the life of the Project. It is important to note that this is a working document which will be updated regularly to maintain a proactive approach to community relations.

The CIP documents the project’s community relations approach and provides a tool for engaging with the community and stakeholders.

1.1 Objectives

The project’s community and stakeholder consultation approach focuses on working closely with its key stakeholders as well as providing regular updates to the local community.

Objectives include:

Disseminate clear, consistent, timely and accurate information about the project to nearby residents, businesses and other stakeholders about the project

Provide the community and key stakeholders with an opportunity to have input into the planning process

Ensure Energy2U Alliance staff managing the project are aware of community and stakeholder requirements during the project and make every effort to minimise impacts

Address any community and stakeholder concerns about the project by working through any issues cooperatively and efficiently

Assist Ausgrid and the Energy2U Alliance to deliver the project in the required timeframe

Reinforce Ausgrid’s commitment to providing a safe and reliable electricity supply

Enhance Ausgrid’s reputation

1.2 Project overview

1.2.1 Scope of works This project will deliver a new zone substation on a site at 3-11 Ward Street, North Sydney. The substation will replace Ausgrid’s existing North Sydney zone substation, which is approaching time for retirement and is located on the corner of Ward Street and Berry Street, immediately adjacent to the new site.

Construction activities started in February 2010 under a Part 5 (of the Environmental Planning and Assessment Act 1979 (EP&A Act)) approval but stopped when the project was declared a Major Project subject to assessment and approval under Part 3A of the EP&A Act.

As part of the Part 3A planning approval process for the project, Ausgrid has completed an environmental assessment for the Minister’s consideration.

Construction of the new substation is planned to resume in late February 2011 once Major Project

approval is received. Demolition of the existing building will proceed after construction and staged

commissioning of the new substation is complete, in 2015.

Operation comprises the following, however does not include commissioning activities:


Stage 1 operation: when the new substation commences functioning, however the existing substation remains partially or fully operational;

Stage 2 operation: when the new substation commences functioning after the existing substation has been fully decommissioned and all external network upgrade projects (subject to Part 5 of the Act) to support the new substation functioning at design capacity, have been completed; and

Stage 3 operation: when the completion of all demolition, site restoration and rehabilitation activities at the existing substation site.

1.2.2 Major project activities The Alliance scope of works for the North Sydney Zone Substation project includes full project delivery of a 132/11kV substation. This includes design, planning approval and delivery of civil and building works as well as electrical equipping and commissioning, and managing environmental and community relations issues for the duration of the project.

1.2.3 Statutory requirements North Sydney zone substation is subject to assessment under Part 3A of the EP&A Act. The draft environmental assessment was provided to Department of Planning for adequacy review prior to public exhibition. Some comments were received on the draft.

Following adequacy review, notifications were provided to owners and occupiers of properties adjacent to the building site and in some surrounding properties affected by construction. During the public exhibition of the environmental assessment, interested parties were given 31 days to provide submissions on the environmental assessment.

All submissions have been collated into a Preferred Project Report for final project determination by the Minister for Planning. At that time this Community Involvement Plan will be included in the Construction Environmental Management Plan to provide further detail on community consultation during the project.

1.2.4 Project location and surrounding area The surrounding area is mixed use commercial and residential. Key features surrounding the site include: several office blocks to the west and south along Berry Street; an open plaza and mixed commercial/residential tower on the south side of Berry Street; and a multi-level car park to the west across Ward Street and bordering the site to the north. There is also a residential zone to the east along Walker Street. The site’s location immediately next to a car park and Berry Street (which experiences high volumes of traffic) means that the project will be visible to the local community.

1.2.5 Related Ausgrid projects The following associated projects related to the new North Sydney zone substation would be undertaken by Ausgrid and would be subject to separate approval under Part 5 of the EP&A Act.:

Installation of 11kV feeder cables east of the substation in an easement under 76 Berry Street.

Installation of 132kV feeder cables north along Harnett Street.

Installation of 132kV feeder cables north along Ward Street to meet an existing 132kV easement under the Wilson Parking car park.

1.2.6 Other proximate developments There are two proposed developments that are proximate to the North Sydney substation

development:

A development located at 136-140 Walker Street of a 22 storey multi-use, commercial and residential building. There are two approved development applications for the site. One was


approved by North Sydney Council on 22 October 2008 and the other on 20 December 2010. Construction has not commenced for either development application.

A development at 144-150 Walker Street of the partial demolition and alterations to the existing buildings fronting Walker Street and the construction of an eight storey mixed use building with basement car parking to the rear. This development was approved by North Sydney Council on 19 July 2010, however construction activities have not commenced.


2 RISK ASSESSMENT AND MANAGEMENT

2.1 Stakeholder identification

This section documents the Project’s community and stakeholder risk assessment and outlines the approach that will be taken to manage project issues and risks, and identify opportunities to provide value for money for Ausgrid and its customers. A summary of key stakeholders for the North Sydney Substation Redevelopment project is provided in the table below.

Table 4-1 Key Stakeholders for the project

Key Stakeholders Potential Interests and Statutory

Requirements

State Government and agencies

NSW Energy Minister – The Hon. Chris Hartcher, MP

Federal Member for North Sydney (Liberal) - The Hon. Joe Hockey

State Member for North Shore (Liberal) - Mrs Jillian Skinner

Investment

Demand management

Environmental and social impacts during construction and operation

Consultation

NSW Health Health and social impacts during operation (EMF and noise)

Compliance with Part 3A Conditions of Approval

DECCW Environmental and social impacts during construction (noise and vibration, construction hours)


NSW RTA Traffic management during construction


Department of Planning Compliance with Part 3A ( EP&A Act)


Community complaints


General Manager

Mayor and councillors

Technical staff

Environmental and social impacts during construction (traffic and engineering issues, construction site management, community complaints)

Urban Design (substation facade), Future use of existing substation (70-74 Berry Street), Consultation/ compliance with Part 3A EP&A Act



Requirements

Landowners and occupants adjacent to proposed substation redevelopment site

136-140 Walker Street (Castle Constructions/Winten Property Group)

Environmental and social impacts during operation (EMF and noise)

Urban Design (substation facade)

76 Berry Street (CBRE, Bel Paese Restaurant, Grimes Parking, AT&T Corporate, FuturePlus)

66 Berry Street (Management Building Services)

Ward Street (Wilson Parking, Council)

77 Berry Street (Berry Square - opposite existing substation)

Environmental and social impacts during construction and operation (noise and dust)

Consultation about construction timing and impacts (traffic and access management)

Local community (surrounding landowners and occupants)

142 Walker Street (First Land Corporation)

144-150 Walker Street (Modog)

81 Berry Street (Berry Mini Mart, Regioni Cafe)

124 Walker Street (cnr Walker and Berry Streets

41 McLaren Street (The Reed Group)

45 McLaren Street (residential units)

56-64 Berry Street (Christies Offices)

199 Miller Street (Rag and Famish Hotel)

Environmental and social impacts during construction and operation (noise, dust and traffic and access)

Consultation about construction timing and impacts

Cable vault works

Relevant utility providers

Sydney Water (Brown Consulting - Water Service Coordinator)

Jemena Gas Networks (NSW) Ltd

Telstra

Relocation and protection of services due to the cable vault works

Community/interest groups

Local Precinct Committee (North Sydney CBD) Consultation about construction timing and impacts

Media

Mosman Daily

Mx

Sydney Morning Herald

Environmental and social impacts during construction

Urban Design (substation facade)



Requirements

Daily Telegraph Future use of existing substation (70-74 Berry St)

Figure 4-2 Project site and surrounding area showing notification zone

The following map shows the location of the North Sydney Substation Redevelopment site and stakeholders in the area who will receive notifications about the project:


2.2 Risk and Issues

2.2.1 Community and stakeholder risk assessment The North Sydney Zone Substation project presents a number of factors that require consideration in assessing the community and stakeholder risk level and applying an appropriate community involvement plan.

A key risk for the North Sydney Zone Substation project is the site’s close proximity to other properties, being bounded on all sides by residential properties, commercial offices and small businesses, such as cafes and parking facilities.

The project team must also effectively manage high pedestrian and vehicle activity on nearby streets including during the installation of associated cables in Ward and Harnett Streets.

Given the above context, the project is considered a Class 2 risk.

A Class 2 site is one where there is potential for the project to result in community/stakeholder dissatisfaction causing possible delay to Alliance works or damage to Ausgrid’s reputation.

The site requires proactive consultation for specific stakeholders, adjacent property owners and businesses and their customers (formal correspondence, phone call, site meeting) early in the delivery process.

The project may require developing stakeholder agreements; however, standard implementation of notifications and use of customer support materials from the start of pre-construction and compliance with all project standards will be required.

This risk assessment is aligned with Ausgrid’s system for establishing the appropriate consultation level: Community Consultation: Consultation guidelines – major projects April 2008. Class 2 is equivalent to Ausgrid’s Consultation Levels 3 and 4.

The consultation approach includes engaging key stakeholders and proactive engagement with the local residential and business community to build their understanding of project works and impact mitigation measures.


2.3 Issues management

Project issues will be managed predominantly through project team and sub-contractor compliance with project standards for construction and implementation of the planned communication activities detailed in this CIP. Table 3.1 provides an overview of general project issues for community and stakeholders.

Table 4-3 Project issues management

Project impacts and issues Potential mitigation response/action

Community and stakeholder expectations

Compliance with all relevant standards

Best practice consultation ie. Advance notification, regular information, consultation and consideration in each stage of the Project.

Expectation for high quality urban design and restoration in keeping with the character of the area.

Impact minimisation – design (shadowing), construction (noise) and operation (EMF) on local residents to be considered.

Legal property access/acquisition - Access will be required through the rear of residential properties at 136, 138-140 Walker Street, and through 76 Berry Street during construction to facilitate erection of scaffolding.

EMF reduction.

The PPR outlines Ausgrid’s compliance with all relevant standards.

Advance notification of work commencing on site and other key milestones or activities will be provided.

The design is in keeping with the character of the area and refined in consultation with key stakeholders.

The substation design addresses visual and operating impacts. Compliance with the CEMP, which will address construction impacts.

Early contact and negotiations with property owners have commenced.

Prudent avoidance of EMF impacts.

Social and economic impacts

Property values.

Supply interruption.

Calls for greater focus on more sustainable energy generation – reduced use (demand management) and alternative sources.

The site is immediately adjacent to the existing substation.

This project is part an $8 billion investment to upgrade the electricity network and improve reliability of supply.

Re-use and development of existing site.

Urban design



Project perceived as threat to local community priorities – amenity, environment, property values, vision for future development

Changes to site footprint or location perceived as new or increased burden to neighbouring properties and existing community.

Loss of amenity – impacts to visual and noise, property and environmental values, health and safety.

North Sydney Council has been consulted to inform the design of the substation. The design is in keeping with the character of the area.

The PPR outlines Ausgrid’s compliance with all relevant health guidelines and consideration of the community and stakeholders.

Health protection

Public health – concerns regarding perceived hazards e.g. EMF proximity. Ausgrid plans its infrastructure in line with relevant health guidelines for electric and magnetic fields (EMF) that are produced by electrical infrastructure. The PPR outlines compliance with all relevant health guidelines and consideration of the community and stakeholders. NSW Health has been consulted regarding EMF issues for the substation. Ausgrid’s compliance with the Conditions of Approval.

Safety

The site has a high degree of exposure to vehicle and pedestrian movements including the car park in Ward Street and the high volume of traffic on Berry Street.

A Traffic Management Plan will include consultation with North Sydney Council and local community on planned traffic changes/ impacts.

Construction impacts*



Out of hours of work, Behaviour of personnel; Interruption to services – power, gas water/sewer, telecom; Noise and vibration; Site access and deliveries; Site appearance and management, visual impacts; Plant and equipment storage and operation; Property damage, restoration of site and surrounding area

Inductions and compliance with the CEMP and site management controls.

As per the Conditions of Approval, the project team will liaise with impacted community (including meetings and briefings with impacted stakeholders) when noise will be of most concern. The team will mitigate noise in response to community complaints, wherever possible.

Communication with council and the community will seek to increase awareness and understanding of construction and mitigation measures will also assist in addressing this issue.

Pre-construction condition surveys will be undertaken on all adjoining properties.

Environmental impacts

flora and fauna, water and air quality (odour, dust), water and energy use, noise, traffic and access, contamination

The Project’s planning approval phase and Construction Environmental Management Plan compliance will address the environmental impacts associated with construction.

Traffic and transport

Road closures, diversions/delays, parking, property access, impact on public transport - The area’s high volume of traffic means that traffic management has the potential to be a key issue at the site.

A Traffic Management Plan will include consultation with North Sydney Council, the RTA and the local community to provide advice on planned traffic changes/mitigation.

Related projects



Some community members may have an interest or concern with regards to the feeder projects which are associated with the new substation.

The project is part of Ausgrid’s $8 billion investment in its network between 2009 and 2014 to replace equipment, meet increasing demand for electricity and further enhance the high levels of power supply reliability. The new North Sydney zone substation will replace the existing North Sydney zone substation which is approaching time for retirement. A separate environmental assessment under part 5 will be prepared to assess the feeder projects.

Concurrent works in the area

Cumulative impacts from concurrent cable work by Ausgrid in the area.

Cumulative impacts from concurrent development on Harnett/Walker Street

Energy2U Alliance will work with Ausgrid’s community relations to ensure coordination of communication activities.

Energy2U Alliance will work with adjacent developers to ensure coordination of construction activities should the developments be constructed concurrently.


3 KEY MESSAGES

The following is a list of key messages that may be used in communications about the project.

Project scope:

Ausgrid is planning an upgrade to the electricity network in North Sydney at a cost of approximately $70 million.

The project is part of Ausgrid’s $8 billion investment in its network between 2009 and 2014 to replace equipment, meet increasing demand for electricity and further enhance the high levels of power supply reliability.

Ausgrid is constructing a new substation to serve the future electricity needs of the North Sydney CBD and surrounding area.

The new North Sydney Zone Substation is being built adjacent to the existing substation on Ausgrid’s property at 3-11 Ward Street, North Sydney and will replace the existing zone substation which is approaching time for retirement.

Ausgrid has purchased land at 3-11 Ward Street, North Sydney as a site for the new zone substation.

Connecting the new substation:

Two new 132,000 Volt cables will supply electricity to the new substation from Ausgrid’s Willoughby bulk supply point located in Artarmon.

The project will involve installing underground cables in and out of the substation to link with the area’s existing network.

Cable vault work will involve approximately six months of work in Berry Street.

Building and construction:

Subject to the Minister for Planning’s approval, construction is planned to start in early 2011.

The new building will be a modern, enclosed facility that is architecturally designed to fit in with the character of the area.

Work started on site in February 2010 and excavation of the substation site is now predominantly complete.

Due to the regional significance of this project in ensuring a safe and reliable electricity supply for the greater North Sydney area, the Minister for Planning declared the project a Major Project subject to assessment and approval under Part 3A of the EP&A Act. This required Ausgrid to undertake further environmental assessment under Part 3A for the Minister’s consideration and determination.

Work on the substation site stopped pending ministerial approval. Staff site sheds remained in Harnett Street to assist with site security and maintenance.

The construction program has been divided into three key phases:

Phase one – building works

Phase two – initial electrical fit out

Phase three – 132kV electrical equipping and transformer installation

The Energy2U Alliance will work closely with the community to minimise construction impacts as much as practicable.

The existing substation building:

Once the new substation is fully operational the existing substation will be progressively removed from

service.

energy2U Alliance North Sydney Zone Substation Community Involvement Plan 2 Dec 2011 17

Meeting environmental and health guidelines:

Ausgrid plans its infrastructure in line with relevant guidelines for the environment and health for both

construction and operation of new buildings.

This includes managing noise during construction and meeting relevant health guidelines for electric

and magnetic fields (EMF) by incorporating prudent avoidance measures in the design.

Other:

You are welcome to contact Ausgrid’s major projects team with any inquiries about the North Sydney

substation redevelopment project.

1800 992 249 (free call from fixed phone)

[email protected]


4 COMMUNITY INVOLVEMENT PLAN ACTIVITIES

4.1 Managing community consultation

The Energy2U Alliance is committed to two-way communications. This commitment will be evident in implementing this CIP and working consultatively with the surrounding community and stakeholders to minimise and manage construction impacts.

The following tools and procedures will be used to inform the local community and stakeholders of planned construction activities, including construction traffic routes, potential traffic disruptions, high noise generating activities and works outside of normal construction hours.

4.1.1 Project contact The key tools that the Alliance will use to manage its contact with the community include the 1800 community phone number, a project email, a postal address and a contacts database.

The Energy2U Alliance community number is 1800 992 249 and the community email [email protected]. These tools will be used throughout delivery of the project to reinforce two-way communication on the project. All project material (newsletter, notifications and other letters) will include this number and the email address.

Site staff will be inducted on the procedure for dealing with complaints from the community1 including

details of an appropriate response and meeting the Alliance response time, which is to provide a

response within four hours. The Alliance will track and report on contact response time. Data to be

recorded is shown in Appendix A.

A contacts database will be used to record details of contact with the community and this will be

available for the Department of Planning and the Minister to review. Ongoing or serious complaints or

concerns will also expand to face-to-face meetings.

In addition, any noise complaints in relation to evening, night time or weekend works in accordance

with NSW Department of Planning’s Conditions of Approval C4, C5 or C6 shall be reported to the

Director General of the NSW Department of Planning on a weekly basis.

All inquiries related to Ausgrid’s customer service standards and interruptions to service will be

referred to Ausgrid in accordance with the organisation’s Customer Service Standards.

4.1.2 Community newsletters Community newsletters will be delivered regularly at each stage of the project to inform the nearby community of the current status and invite them to participate in the appropriate planning stages.

4.1.3 Meetings and Briefings Key stakeholders will receive regular briefings to ensure that they are aware of the project. Briefings will be held with council, the precinct committee, nearby property owners and building managers to inform them of the project and how to provide feedback. All community and stakeholder meetings and briefings will be recorded in the contacts management database

4.1.4 Website Ausgrid will maintain web pages on the project within its existing website for the provision of electronic information associated with the project subject to confidentiality. Information on the website will include:

1 See Appendix A


the telephone number, postal address and email address for the project

information on the statutory context and current implementation status of the project;

environmental assessment documentation, including the following documents:

o Major Project Application MP 10_0092 and preliminary assessment;

o North Sydney Zone Substation Redevelopment Environmental Assessment dated September 2010 and prepared by the Energy2UAlliance;

o North Sydney Zone Substation Redevelopment Preferred Project Report dated December 2010, and prepared by the Energy2UAlliance

o The Minister’s Conditions of Approval; and any future modification to the Approval.

o a copy of each relevant environmental approval, licence or permit required and obtained in relation to the project;

o all plans, monitoring programs and strategies required by the Minister’s approval; and

o Details of the outcomes of compliance reviews and audits of the project (as identified in the Compliance Tracking Program required under condition B6 of the Minister’s Conditions of Approval).

4.1.5 Signage A branded sign posted at the construction site will provide construction information and relevant contact details for the project, such as the community phone number and email address. An emergency contact for outside office hours will be provided during construction.

4.1.6 Site inductions Site staff will be inducted on the procedure for dealing with complaints from the community

2 including

details of an appropriate response and meeting the Alliance response time, which is to provide a

response within four hours. The Alliance will track and report on contact response time. Data to be

recorded is shown in Appendix A. A contacts database will be used to record details of contact with

the community and this will be available for the Department of Planning and the Minister to review.

Ongoing or serious complaints or concerns will also expand to face-to-face meetings.

4.1.7 Advertising The project telephone number, postal address and email address shall be published in a newspaper circulating in the local area prior to the commencement of construction and prior to the commencement of operation of the project.

4.1.8 Advance notification of construction works The Alliance will manage notification to adjacent property owners, and nearby residents and businesses of proposed projects in relation to the Alliance’s Program of Works. Notifications will include details of the:

work to be undertaken

purpose of the work

duration of work

temporary/altered traffic or access arrangements

2 See Appendix A


4.1.9 Contact database The contacts database will be used to record details of contact with the community.

3

All inquiries related to Ausgrid’s customer service standards and interruptions to service will be referred to Ausgrid in accordance with the organisation’s Customer Service Standards.

4.1.10 Media Ausgrid’s media team will manage media contact with local and metropolitan media about the project.

4.1.11 Incident and emergency response communications The CEMP for the project will guide incident and emergency response procedures including notification to Ausgrid.

3 See Appendix A


5 CONSULTATION PROGRAM

The table below outlines the consultation approach, key actions and deliverables for each phase of the project. All activities are tailored to the specific requirements of the project and its stakeholders.

This consultation program takes into account Department of Planning’s Conditions of Approval requirements for consultation during construction of the new

substation, including construction of cable vault works. Consultation for the demolition of the existing substation would be covered in a later community

involvement plan (when the demolition management plan is developed).

The table is a live document and will be regularly updated as the project progresses.

5.1.1 Program timing and activities for substation construction/demolition

Timing Stakeholder Action Deliverable

June - August 2010

Agencies /utilities (Telstra, Sydney Water, Jemena Gas)

Liaison support - Community newsletter to notify change in approval process

- Notifications as required

August 2010 All local community and key stakeholders

Conduct consultation in line with Part 3A approvals process

- Outline community consultation under Part 3A in environmental assessment chapter on consultation

September 2010

All local community and key stakeholders

Deliver community newsletter to notify community of public exhibition of Environmental Assessment

- Community newsletter

Public Exhibition: September 2010

All local community and key stakeholders

Issue Environmental Assessment to Department of Planning for detailed review and comments

Environmental Assessment displayed publicly for a period of 31 days

- Updated Environmental Assessment

Late 2010 Internal (project team, EA), Department of Planning

Review submissions received during public exhibition. Draft PPR and update CIP in line with DoP feedback

- PPR and updated CIP


Pre-construction

Stakeholder Action Deliverable

March 2011 All local community and key stakeholders

Update CIP in line with Conditions of approval - Update CIP

March 2011 Key stakeholders (adjacent building owners, residents and businesses)

Identify all potentially affected sensitive receiver premises (noise impacts) for construction of cable vault.

- Doorknock potentially affected landowners and occupiers and develop database of all relevant contacts

March 2011 Project team Draft site induction - Prepare Community Relations Induction presentation material for site staff

April 2011 Internal (project team, EA), Department of Planning

CEMP involvement - Prepare Community Relations chapter on CEMP

June 2011 All local community and key stakeholders, North Sydney Council (GM, Councillors, Precinct Committee)

Update on project status - start of construction - Notification cover letter and community newsletter

- Website update (required documents added) and community newsletter on website

- Advertising in local paper

June 2011 Adjacent building owners and residents on Harnett Street

Drivers who park on Harnett Street

Notification of crane delivery - Notification letter

- Car notification cards with details about no parking on Harnett Street during crane arrival

June 2011 Property owners and businesses Property condition (dilapidation) survey letter - Notification letter / email / phone call


June 2011 77 Berry Street – Building Manager, Strata Committee and café owners

66 Berry Street – Building Manager and café owner

Consult with sensitive receivers regarding construction of cable vault.

- Meetings with affected receivers to explain the nature and duration of works, potential impacts, mitigation measures and complaint process

- Display signage in prominent locations within relevant buildings

June 2011 - Motorists and pedestrians (car and cab drivers)

- North Sydney Council

Provide details (dates/times) of construction of cable vault.

- Display street signage (eg. VMS and traffic courtesy sign)

- Consultation with car park (Wilson), RTA, Council and taxi cab companies

- Car notification card with details about parking limitations as required.

Construction: Stakeholder Action Deliverable

June 2011 - ongoing

Individuals with inquiries/ complaints Address feedback/complaints - Offer face to face meetings to negotiate better outcomes, as required

Quarterly, starting July 2011

North Sydney Council (GM, Councillors, Precinct Committee)

Liaison to confirm contact details and determine necessity for regular contact i.e. meetings or reports

- Quarterly progress report to Council

- Brief Council face to face (update on construction) if required

July 2011 Construction site personnel, including contractors

Record Site Specific Controls/Agreements - Arrange appropriate environmental monitoring as required

- Provide Community Relations briefing/induction

July 2011 Potentially affected landowners and occupiers; North Sydney Council

Regular reporting on noise monitoring results for construction of cable vault

- Provide noise and vibration information, as required


Starting July 2011

Wilson Car Park

65 & 77 Berry Street (including Berry Square building mgmt; body corporate and businesses and residents)

52 - 76 Berry Street (building mgmt) and businesses, including car parking access for occupiers

124 Walker Street businesses (CBRE)

Christie Corporate; Rag and Famish pub

Bi-monthly liaison to inform of requirements for construction of cable vault:

- clear process for how complaints are addressed;

- community relations phone and email address for feedback (site foreman’s number for complaints during night works)

- details of timing and impacts in advance of works (at least 24 hour notice required)

- Phone call/ email and meeting to explain the works, answer queries etc.

- If necessary hold further meetings as required.

- Issue notification (letter drops) as required to confirm cable vault construction hours (throughout cable vault construction)

- Provide, where appropriate, an unstaffed community information display info in prominent location (e.g. foyer of building or lifts)

Bi-monthly Key stakeholders (adjacent building owners, residents and businesses)

Phone call to key stakeholders to dialogue on project impacts

- Liaison, above notification alone, to keep channels of community open about project

July 2011 Key stakeholders (adjacent building owners, residents and businesses)

Notification of crane delivery, out of hours work/deliveries or changed traffic arrangements

- Notification letter/ email / phone call

Completion of civil works

Stakeholder Action Deliverable

Mid 2012 All local community and key stakeholders

Communicate key milestone on new substation construction completion

- Notification cover letter and community newsletter

- Website update and community newsletter on website

Mid 2012 to mid 2013

All local community and key stakeholders; North Sydney Council (GM, Councillors, Precinct Committee)

Update on project status - start of equipping - Notification cover letter and community newsletter

- Website update (required documents added) and community newsletter on website

energy2U Alliance North Sydney Zone Substation Community Involvement Plan Friday, 2 December 2011 A

APPENDIX A MANAGING COMMUNITY CONTACT

5.1.2 Contacts database Records of contact will be kept using Darzin, which is a stakeholder data management software package which can be used to generate reports and statistics on a particular project team’s daily contact with community members and stakeholders.

Darzin will be used to:

establish and maintain a register of all electronic, written and verbal contact concerning the project;

monitor response time to within four hours of initial contact either as a direct response or course of action for providing a response;

generate a monthly progress report.

Table 5.1 Community contact and complaints protocol

Project inquiries/complaints protocol

Report Instruction

Name Record name and company if applicable.

Means of contact Record the means by which the enquiry or complaint is made (telephone, mail or email).

Contact details Record address and a contact number, or if no details are provided, a note to that

effect.

Nature of contact Record whether an enquiry or complaint, question or comment.

Response provided Record any response or action(s) taken in relation to the enquiry/complaint.

Commitments made Record any commitments you made e.g. “an Alliance team member will contact you regarding your question…”. Include any follow-up contact with the complainant and the timing for implementing action and details of the action being closed out. If no action was taken by the Proponent in relation to the complaint, the reason(s) why no action was taken.

Date and time of enquiry Record the date and time of enquiry and note whether response was provided - less

than four hours; within four hours or more than four hours - to satisfy KRA

performance measures.

Inform Communications

Officer

If not part of the E2U Alliance Communications and Community Relations team,

immediately call 1800 992 249 to report all details of the contact.

The Contacts Database shall be made available for inspection by the Director-General upon request during the life of the project.


5.1.3 Procedure for inquiries and complaints

A contacts database will be used to record all complaints and this will be available for the Department of

Planning and the Minister to review. Ongoing or serious complaints or concerns will also expand to face-

to-face meetings and will also be managed in accordance with Ausgrid’s complaints procedure, located on

the website at: www.ausgrid.com.au/Common/About-us/Contact-us.aspx.

In addition, any noise complaints in relation to evening/night time or weekend works in accordance with

NSW Department of Planning’s Conditions of Approval C4, C5 or C6 shall be reported to the Director

General of the NSW Department of Planning on a weekly basis.

All inquiries related to Ausgrid’s customer service standards and interruptions to service will be referred to

Ausgrid in accordance with the organisation’s Customer Service Standards.


5.1.4 Escalated complaints management The Alliance will prepare responses to escalated complaints or government correspondence within one business day of receipt by the Alliance. Escalated complaints are those received by Ausgrid directly from:

Minister for Energy

Managing Director or Chairman

Energy and Water Ombudsman New South Wales

Minister for Planning

Ausgrid’s Community Relations Manager or their delegate will forward advice of these complaints to the Alliance in a timely manner. Ausgrid will seek Alliance feedback on the issues raised and input on appropriate steps towards resolution of the issue.

The Alliance will prepare a draft written response using Ausgrid’s response format. This draft will be provided for Ausgrid’s Community Relations Manager’s consideration and their provision to Ausgrid’s Corporate Communications section for action through Ausgrid’s internal resolution channels.

In addition, any noise complaints in relation to evening, night time or weekend works in accordance with

NSW Department of Planning’s Conditions of Approval C4, C5 or C6 shall be reported to the Director

General of the NSW Department of Planning on a weekly basis.

5.1.1 Contact response time The Alliance will track and report on contact response time. The Alliance response time target is to provide a response within four business hours. A response provides the community/stakeholder contact with information. A response time is the amount of time that elapses between the community/stakeholder’s initial contact and the time when the Alliance can provide a response.

Community members will be able to speak directly with a member of the project team during business hours (8.30am to 5.00pm Monday to Friday).

Where construction activities occur outside of these hours, the community information line will remain open to enable community members to call whenever there is construction activity at the site. The Alliance will manage the email account during business hours.

APPENDIX F - ENVIRONMENTAL RISK MANAGEMENT

The following risk assessment matrix (Table 1) was used to determine the risk of each individual environmental aspect relevant to the construction phase of the North Sydney ZS project. The level of risk determined from the matrix identifies the level of control measures required for that environmental aspect. These risks are to be mitigated through the application of measures identified in this CEMP.

Table 1 – Risk Assessment Matrix

Probability

Co

nse

qu

ence

A B C D E

1 H H H H M

2 H H H M M

3 H H M M L

4 M M M L L

5 M L L L L

Explanatory notes on the selection of the consequence and probability for each issue are presented in

Table 2 – Risk Matrix Explanation

Probability Consequence

A

Almost

Certain

Expected to occur, quite

common. 1 Major

Major environmental harm. e.g.

major pollution incident causing

significant damage or potential to

health or the environment.

Fines and prosecution likely

B

Likely Will probably occur, has

happened.

2 Significant

Long term or serious environmental

damage.

Numerous complaints received.

Potential for prosecution.

Loss of reputation

C Possible Might occur at some time.

3 Moderate

Moderate environmental impact.

Will cause complaints.

Possible fine.

D Unlikely Could occur at some time

although unlikely. 4 Minor

Minimal environmental harm.

Potential for complaints.

Fine unlikely.

E Rare Might occur at some time in

exceptional circumstances. 5 Insignificant

Little or no environmental harm.

Little potential for fines or

complaints.

Table 3 - Risk Assessment Matrix Results

Aspect Potential Impacts Probability Consequence Risk Ranking

Controls

Visual Amenity

Degraded visual amenity due to untidy construction site and presence of plant and equipment.

D 4 Low Refer to CEMP main document

Air Quality Dust generated through excavation works and traffic movement

C 4 Medium Refer to CEMP main document

Plant, equipment and vehicle emissions during construction


Noise and vibration

Temporary elevated noise emissions during construction of substation and cable vault (during weekdays and on the weekend) at neighbouring residential and commercial properties.

B 4 Medium

Refer to Construction Noise

and Vibration Management Plan

(Appendix B)

Traffic and access

Traffic disruption due to partial closure of Berry Street during the construction of the cable vault.

C 4 Medium Refer to Traffic

Management Plans (Appendix C)

Increase in vehicular traffic on local road network during construction of the substation and cable vault.

B 4 Medium Refer to Traffic

Management Plans (Appendix C)

Sustainability and climate change

Inefficient use of resources, plant and equipment during construction


Emissions associated with use of resources during construction


Water quality and hydrology

Discharge of ‘dirty’ water and pollution of waterways and drainage lines

D 3 Medium

Refer to Erosion and Sediment Control Plan (Appendix D)

Discharge of contaminant laden runoff from accidental spillage of chemicals and fuels from the operation and maintenance of construction plant and equipment

D 4 Low


Contamination Contamination of soil, surface water and groundwater from spills and leaks associated with the inappropriate storage and handling of chemicals, oils and

D 4 Low


Aspect Potential Impacts Probability Consequence Risk Ranking

Controls

fuels.

Localised contaminated material that is excavated during cable vault works.

D 4 Low


Socio-economic

Amenity (including traffic, noise and visual) impacts on the surrounding residents and stakeholders during construction.


Safety and access impacts associated with the construction of the cable vault.

D 3 Medium Refer to CEMP main document

Waste management

Potential contamination of land and water due to inappropriate handling and disposal of waste materials.


Non conformance with waste hierarchy and WRAPP principles.


Heritage Impact to any item of historic or Aboriginal heritage significance during construction.

E 4 Low Refer to CEMP main document

Flora and fauna Spread of exotic

species. E 4 Low

Refer to CEMP main document

Cumulative impacts

Cumulative impacts on environment and community due to cumulative construction projects in the immediate vicinity.


Dewatering Procedure

energy 2U Alliance | Dewatering Procedure N8603 – North Sydney ZS 2

QUALITY INFORMATION Document : Dewatering Procedure

Ref: North Sydney Zone Substation Project – N8603

Date: May 2012

Prepared by : Deborah Bowden

Reviewed by : Kirsten Evans

REVISION HISTORY

Authorised


A 3 March 2011 Draft Kirsten Evans Project Manager

B 8 May 2011 Final for approval Kirsten Evans Project Manager

C 8 May 2012 Modifications to dewatering system

Kirsten Evans Project Manager


CONTENTS

1 Purpose 4

2 Scope 4

3 Induction / training 4

4 Record keeping 4

5 Location of Water Retention Tank(s) 4

6 Monitoring and field measurements 4

7 Water Quality Criteria for Discharge 5

8 Water treatment 5

8.1 pH Levels 5

8.2 Suspended Solids 5

8.3 Hydrocarbons 5

9 Discharging Water 6

10 Maintenance of Settling Tanks 6


1 PURPOSE

This procedure details the actions to be taken for the dewatering required during the construction of the North Sydney ZS Project (i.e. construction of the Zone Substation, cable vault and other associated cabling works). The procedure does not include dewatering during the demolition of the existing substation as this activity will be covered by a Demolition Management Plan that will be prepared prior to the commencement of demolition.

The procedure details requirements for the sediment tank flocculation (if required), pH correction and water discharge to minimise environmental impact on receiving waters and to comply with relevant water quality criteria.

2 SCOPE

There is no groundwater seepage at the existing North Sydney excavation. Therefore, this procedure applies to stormwater dewatering only. The procedure includes the collection, storage, testing and discharge of stormwater.

3 INDUCTION / TRAINING

All personnel involved in dewatering will be made aware of the dewatering requirements at the Site Inductions and via regular Toolbox Talks. All personnel involved in dewatering activities will be inducted into the Site Specific Environment and Safety Work Method Statement for the dewatering prior to commencing the task.

4 RECORD KEEPING

Relevant data will be recorded on the Water Release Approval Form (Appendix A) and submitted to the project environmental representative for review and approval prior to water discharge. All records will be stored on site and uploaded onto Incite.

5 LOCATION OF WATER RETENTION TANK(S)

Stormwater collected in the base of the building will be piped via a semi-permanent system to the permanent detention tank in the basement and pumped out to the street stormwater system, ensuring the criteria below is met.

6 MONITORING AND FIELD MEASUREMENTS

Water within the sediment tank will be monitored prior to each discharge by field measurements as follows:

• an electronic waterproof pH meter and or pH strips; and • a turbidity tube.

During initial monitoring, a correlation will be established between total suspended solids (TSS) and turbidity, so that turbidity can be used as a field indicator of TSS prior to discharge.

Oil and grease will only be tested for if an oily sheen is visible on the surface of the water.

Samples will be taken from 300mm below the surface of the water at the final baffle and collected in bottles appropriate for the analytes to be tested. Samples will be assessed to confirm compliance with discharge protocol prior to the discharge event.


Stormwater collected ZS site will be treated and discharged to the reticulated stormwater system.

7 WATER QUALITY CRITERIA FOR DISCHARGE

Before any water can be discharged from the sediment tank it must meet the following criteria:

• pH between 6.5-8.5;

• TSS <50mg/L and / or field turbidity generally less than 75 NTU; and

• No visible oil and grease.

The above water quality criteria will be determined using the field measurements described in Section 6 of this sub-plan.

The discharge of water will be managed using a “closed system” which will enable the tank to be filled, treated and tested prior to any water being allowed to exit the treatment system. Similarly, once the water has been tested, no water will be allowed to enter the closed system until the tested water has been discharged.

8 WATER TREATMENT

8.1 pH Levels If the pH of sediment pond water is outside the range of 6.5-8.5, it will need to be treated to bring it within the acceptable range.

• If the water pH is above 8.5, hydrochloric acid is used to lower the pH:

• A 500mL dose of acid lowers 7000L of water by a pH of approximately 1.5.

• To treat water with acid, safety requirements must be followed as outlined in relevant MSDS’s and ESWMS’s

• If the water pH is below 6.5, a base such as agricultural lime, with a pH of about 8.2, will be used to raise the pH.

8.2 Suspended Solids If the TSS of water is greater than 50 mg/L a flocculent should be used as follows:

• Treating water with flocculent (e.g. gypsum, liquid alum or flocculent blocks) will make the sediments drop to the bottom. Water retention tanks also have internal baffles installed to further assist with reducing the sediment load. Dosing rates of 30kg per 100m3 will be used and application methods will be applied as per methods recommended in the Landcom publication Managing Urban Stormwater, Soils & Construction (4th edition). Note that an even application over the captured water is essential for effective flocculation. Apply evenly in water and wait for the sediment to settle out.

Only environmentally safe flocculants are to be used based on the environmental representative’s review of MSDS information.

8.3 Hydrocarbons If an oily sheen is found on the surface of the water absorbent material from a spill kit will be used to absorb and skim off the sheen prior to discharge.


9 DISCHARGING WATER

Approval to discharge treated water will be from the Senior Project Engineer, the environmental representative or Alliance Project Manager. Once water has been tested and meets all the criteria approval to discharge will be granted. No water discharge will occur without this Hold Point being released and the appropriate approval obtained.

Dust suppression of unsealed surfaces will be required at regular intervals. Onsite reuse of stormwater and groundwater for dust suppression and construction needs will be considered prior to offsite discharge.

The Site Manager or Senior Project Engineer will visually monitor water quality at a downstream inspection point once each discharge event commences, to ensure no plume is evident. In addition, during each discharge event, the water sediment tank will be inspected on a half hourly basis or a flotation device is to be employed to ensure the pump does not drawdown water beyond a certain level (and risk discharging flocculated and/or sludgy material). Once a sediment tank has been filled and treatment has commenced, no additional water is to be pumped into the tank until the water has been released. If the water quality declines during release offsite (e.g. water treatment may have resulted in layers of varying water quality in tank), the system will be shut down and additional treatment will be required. The water will not be permitted to be discharged off site until the Senior Project Engineer or other authorised person again approves the water release Hold Point.

10 MAINTENANCE OF SETTLING TANKS

Maintenance of the sediment tank will be ongoing for the duration of dewatering activities and will comprise the following:

• Where there is a large build up of sediment at the basin inlet, sediment will be removed;

The results of maintenance inspections will be recorded on the Weekly Environmental Inspection Checklist.

APPENDIX A – WATER RELEASE APPROVAL FORM

Project: North Sydney Zone Substation Project No: N8603 Date:

Location of Dammed / Retained Water: e.g. drain, excavation (including chainage)

Approx. Volume: 1l/s ongoing discharge

Proposed Release Location: e.g. grassed area, drain

ER’s Initial to Confirm Release / Actions:

Date Test By Time pH 6.5 to

8.5

Turbidity Field

generally less than 75 NTU

Turbidity Lab

Total suspended solids (lab

results) < 50 mg/L

Petro-hydrocarbons No visible films

Debris None

visible

Comments

Water Release Approval

Documents

North Sydney Zone Substation Redevelopment …/media/Files/Network/Network Projects...May 2012 North Sydney Zone Substation Redevelopment Construction Environmental Management Plan