Environment Construction Method Statement #4 · 2019. 10. 3. · ECMS - Concrete Production and...

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Environment Construction Method Statement #4 Concrete Production and Delivery (Batch plant) HEA-CMS-GL-ENV-004-00-02 Scope This Construction Method Statement describes the environmental management measures to be applied to the establishment and operation of concrete batching plants and concrete delivery. Location/s Various sites Timing Pre-construction and construction Minister’s COAs CoA 30

Transcript of Environment Construction Method Statement #4 · 2019. 10. 3. · ECMS - Concrete Production and...

  • Environment

    Construction Method Statement #4

    Concrete Production and Delivery (Batch plant)

    HEA-CMS-GL-ENV-004-00-02

    Scope

    This Construction Method Statement describes the environmental management

    measures to be applied to the establishment and operation of concrete batching

    plants and concrete delivery.

    Location/s Various sites

    Timing Pre-construction and construction

    Minister’s COAs CoA 30

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    DOCUMENT CONTROL

    Document Type: Document No/Ref:

    2

    Title: Concrete Production and Delivery (Batch plant)

    General

    Description:

    This Construction Method Statement describes the environmental management measures

    to be applied to the establishment and operation of concrete batching plants and concrete

    delivery.

    Document Path: \\10.10.25.35\Data\HEA\01

    Environment\01_09_ECMS\04_BatchPlant\WorkingDocuments\HEA-CMS-GL-ENV-004-

    00-01_BatchPlant.doc

    Approval Name Position Signed/Approved Date

    Document

    Editor / Author

    Kristopher Hincks Senior Environmental

    Coordinator

    Review Tracey Doczy Environment Manager

    Final approval Peter Chatburn Alliance Project

    Manager

    DOCUMENT REVISIONS

    Rev Date Prepared by Reviewed by Approved by Remarks

    01 5/10/10 C. Mueller A. Zambolt T. Doczy

    02 23/8/12 K Hincks T Doczy T Doczy Updated to include

    Rest Area Batch

    Plant

    EMR Certification

    I have reviewed this ECMS and find it to be in accordance with the relevant Conditions of Approval and all relevant undertakings made in the EIS, Representations Report and the approved CEMP.

    Signed:

    Environmental Management Representative

    Date:

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    Table of Contents 1 Introduction ....................................................................................................................................... 1

    1.1 ECMS overview ....................................................................................................................... 1

    1.2 ECMS attachments .................................................................................................................. 1

    1.3 Key reference documents to ECMS ........................................................................................ 2

    2 Scope of works ................................................................................................................................. 4

    2.1 Overview of activities ............................................................................................................... 4

    2.2 Concrete production and delivery ............................................................................................ 4

    2.3 Key elements of the batching plants ....................................................................................... 5

    2.4 Batching plant facilities ............................................................................................................ 6

    2.5 Batch plant access .................................................................................................................. 6

    2.6 Batching plant process ............................................................................................................ 6

    2.7 Concrete waste solids reuse ................................................................................................... 7

    2.8 Water capture, use and reuse ................................................................................................. 7

    2.9 Hours of operation ................................................................................................................... 7

    2.10 Site rehabilitation and restoration ............................................................................................ 7

    3 Key roles and responsibilities ........................................................................................................... 9

    4 Statutory requirements and approvals ........................................................................................... 10

    4.1 Revision of ECMS to reflect licence conditions ..................................................................... 10

    4.2 ECMS consultation process .................................................................................................. 10

    4.3 Minister’s Conditions of Approval .......................................................................................... 11

    5 Site induction and training .............................................................................................................. 16

    6 Monitoring and inspection .............................................................................................................. 16

    7 Revisions ........................................................................................................................................ 16

    8 Document control ........................................................................................................................... 16

    9 Attachments ................................................................................................................................... 17

    Attachment A .........................................................................................................................................

    Environmental Control Plan ...............................................................................................................

    Attachment B .........................................................................................................................................

    Progressive Erosion and Sediment Control Plan –Batch Plant .........................................................

    Attachment C .........................................................................................................................................

    Batching plant first flush system .........................................................................................................

    Attachment D .........................................................................................................................................

    Environmental Update 12 - Concrete Batch Plant Sites ....................................................................

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    Attachment E .........................................................................................................................................

    Environmental Best Practice for Concrete Washout ..........................................................................

    LIST OF TABLES

    Table 1.1: Relevant CEMP sub-plans .............................................................................................. 2

    Table 1.2: Additional relevant references ......................................................................................... 3

    Table 2.1: Construction and operation of the main concrete batching plant .................................... 5

    Table 4.1: Legislation and statutory obligations ............................................................................. 10

    Table 4.2: Matrix of Minister’s Condition of Approval 30 ................................................................ 11

    Table 4.3: Matrix of Minister’s Condition of Approval 129 as applied to the main batching plant . 13

    Table 4.4: Matrix of Minister’s Condition of Approval 129 as applied to the paving batching plant 14

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    1 Introduction

    This Environmental Construction Method Statement (ECMS) documents the requirements for works

    associated with the pre-construction, construction and post construction considerations of concrete

    batching plants. This document:

    � addresses the requirements of the Minister’s Condition of Approval 30 for the Hunter Expressway

    project,

    � reflects the requirements of the Hunter Expressway Alliance (HEA) environmental management

    system (as detailed in the Construction Framework Environmental Management Plan),

    � incorporates the management measures from the relevant sub-plans and DPI, Fisheries and

    RMS guidance documents and

    � describes the environmental management measures relating specifically to the construction

    activities and potential environmental issues.

    This ECMS has been prepared as a practical environmental management tool for use by all HEA

    personnel and subcontractors and incorporates the assessment of the environmental and community

    risks for these works. The specific environmental and community management controls developed

    and detailed in the ECMS, include the following key information:

    � Key site and management personnel - responsibilities and contact details.

    � Operating hours.

    � Construction details – activities, staging and schedule.

    � Objectives and targets – monitoring requirements, criteria and procedures.

    � Action tables/plans – inspection and test plans with actions, responsibilities, training, timing,

    reporting, monitoring/auditing and checklists.

    � Site Drawings - Site layout, monitoring locations, erosion controls, noise barriers, discharge

    points and limits of clearing.

    1.1 ECMS overview

    The General Construction ECMS 1 will be required for all construction sites.

    This activity specific ECMS provides only specific requirements for concrete production and delivery.

    When constructing and operating concrete batching plants, this ECMS will need to be used in

    conjunction with ECMS 1: General Construction which will apply for the non-specific requirements for

    the site.

    The Site Supervisor in consultation with the QA Manager will determine which ECMSs are required for

    each work site. Refer to the overview map contained in ECMS #1 for an overview of all ECMSs.

    1.2 ECMS attachments

    The ECMS site-specific Environmental Control Plans (ECPs) include site-specific drawings on a

    cadastral and air photo base with site boundary overlain, general traffic controls and site-specific

    environmental management action tables. ECPs are to be read/ implemented in conjunction with the

    ECMS document and relevant reference documents and are for day-to-day reference for managing

    activities on the individual sites. The ECPs have been designed as A3 and/or A1 drawings for

    attachment to site shed walls.

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    This ECMS includes the following:

    � Attachment A – Environmental Control Plan.

    � Attachment B – Progressive Erosion and Sediment Control Plan – main batch plant site.

    � Attachment C – Batching plant first flush system.

    � Attachment D – Environmental Update 12 – Concrete Batch Plant Sites.

    � Attachment E – Environmental best practice for concrete washout.

    Attachment B contains the erosion and sediment control measures and drainage for the two concrete

    batching plants near the Project Office and the east bound rest area respectably. Each concrete

    batching plant will require a first flush system flow system as indicated in Attachment C to ensure

    wastewater is diverted, captured, treated and reused to prevent release to local waterways. The

    specific control measures for the operation of a concrete batching plant are provided in Attachment D.

    1.3 Key reference documents to ECMS

    The development of this ECMS has been guided by detailed management plans and reports to

    develop appropriate mitigation measures for managing the environment impacts associated with

    batching plants. The relevant CEMP sub-plans listed in Table 1.1 and the specific references relevant

    to batching plants as listed in Table 1.2, will be referred to as needed for specific information for day-

    to-day worksite activities.

    Table 1.1: Relevant CEMP sub-plans

    Issue Relevant Plan(s) Details

    Noise & vibration

    (incl. blast

    management)

    Construction Noise & Vibration Sub Plan

    Construction Noise and Vibration Impact

    Statement A: Batching Plant and

    Equipment Compounds (Appendix A)

    HEA-PL-GL-NVP-001-A

    Provides a comparison of measured

    background noise levels at sensitive

    receivers vs. predicted noise impacts,

    duration of impacts from site works and

    traffic, physical and site management

    measures to minimise impacts and

    compliance monitoring program.

    Flora & Fauna

    Visual

    Flora and Fauna Management Sub Plan

    (incl Landscape Master Plan)

    Provides details of the location of sensitive

    environment, including EECs and

    management measures to prevent

    construction encroachment.

    Soil and water

    quality Soil & Water Management Sub Plan

    Landscape Management Sub Plan

    Spoil Management Sub Plan

    Provides details of the physical and

    management controls for surface runoff,

    erosion and sedimentation control, incident

    response and details of the compliance

    monitoring program.

    Land contamination Hazard & Risk Management Plan

    Provides details of the assessment of

    contamination.

    Heritage Aboriginal Cultural Heritage Management Sub Plan

    Provides details of the location known and

    potential of archaeological sites and heritage

    sites as well as management measures to

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    Issue Relevant Plan(s) Details

    Historical Heritage Management Sub Plan prevent damage or destruction.

    Air Quality Construction Air Quality Management Plan

    Provides details on the location of sensitive

    receivers, air quality impacts from

    construction works and mitigation strategies

    and measures.

    Waste Waste Management & Re-Use Sub Plan

    Provides details on the waste strategies and

    management measures to maximise reuse,

    minimise waste generation and ensure

    lawful disposal where required.

    Table 1.2: Additional relevant references

    Issue Relevant Plan(s)

    Erosion and

    Sediment Control

    Managing Urban Stormwater: Soil and Construction, Appendix C- Unsealed Roads. Dept of

    Housing (2008).

    http://www.environment.nsw.gov.au/resources/stormwater/0802soilsconststorm2c.pdf

    Consistency

    Review

    Environmental Construction Compound and Batching Plant, Consistency Review Report,

    HEA, 19 July 2010.

    • Appendix B: Ecological Assessment of the Proposed Compound Site and Batch Plant,

    Parsons Brinkerhoff, July 2010.

    • Appendix C: Draft Aboriginal Cultural Heritage and Archaeological Survey and

    Assessment of the Hunter Expressway Alliance Project Office Compound and Batch

    Plant, near Buchanan, New South Wales, Umwelt, July 2010.

    • Appendix D: Heritage Impact Statement Proposed HEA Project Office Compound,

    1416 George Booth Drive, Umwelt, July 2010.

    Reuse of Concrete

    Waste Solids

    Specification for Supply of Recycled Material for Pavements, Earthworks and Drainage,

    DECCW, April 2010.

    Includes specifications for: roadbase, select fill, bedding material and drainage medium

    Concreting -Best

    Practice Guideline

    Best Practice Guideline for Concreting Contractors, DECCW, Nov 2004

    Additional batching

    plant sites

    Checklist for Ancillary Sites, Appendix C, (Environmental Construction Method Statement

    3:Site Construction Compounds, HEA, 2010) [HEA-CMS-GL-ENV-003-00-01]

    As in the development of the CEMP, all relevant RMS Specifications were incorporated in the

    development of the Environment Construction Method Statements.

    Refer to the General Construction ECMS, Table 1.3 for specific work instructions developed for the

    CEMP and subplans as relevant to construction works and environmental management.

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    2 Scope of works

    This ECMS covers the establishment and operation concrete batching plants for concrete production

    and delivery as required for the construction of the 13 km expressway project from the Newcastle Link

    Road interchange with the F3, through to Buchanan.

    2.1 Overview of activities

    A concrete batching plant is required for the supply of concrete during the construction program. The

    main concrete batching plant is located at approximate chainage 6800 adjacent to the site office.

    A second concrete batching plant is required for pavement construction as part of finishing works. It

    will be located in the east bound ‘rest area’ at alignment chainage 7400:8000.

    The main concrete batching plant has been established within an existing 1.2h cleared area on a site

    leased from a privately owned rural property used for cattle grazing and poultry. The batching plant

    site was a former quarry that has been highly disturbed as a result of previous excavations. The site

    is disused by the landowner and is surrounded by a large patch of remnant vegetation which

    separates it from the construction compound.

    The location for the paving batch plant is on disturbed land used previously by the Alliance to assist in

    construction of the Expressway. Locating the batch plant on land adjoining the Expressway formation

    will minimise the need to use main arterial routes and reduce interaction with public road users for the

    production and placement of necessary concrete material to complete the Hunter Expressway.

    Note: the grout batching plant is covered under the Mine Void Drilling and Grouting ECMS #6 (HEA-

    CMS-GL-ENV-006-00-01).

    2.2 Concrete production and delivery

    The main concrete batching plant will be near the Project Office in Buchanan as identified in

    Attachment A. A consistency assessment was prepared for this site which included an assessment

    against MCoA 129 and additional environmental assessment.

    The paving concrete batching plant will be located in the east bound rest area as identified in

    Attachment A. A consistency assessment was prepared for this site which included an assessment

    against MCoA 129.

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    2.3 Key elements of the batching plants

    The following table provides a general description of the construction activities relevant to the

    establishment and operation of the two concrete batching plants in the Buchanan area, as per

    Attachment A.

    Table 2.1: Construction and operation of the main concrete batching plant

    Activity Description

    Pre-construction Main batching plant

    • Survey and fencing of remnant vegetation and cattle fencing

    • Site induction

    Paving batching plant

    • Survey

    • Site induction

    Site establishment Main batching plant

    • Installation of fencing around the batching plant site boundary.

    • Minor clearing and grubbing works

    • Installation of sediment controls (including the installation of a

    waste detention basin in the north western corner of the site).

    Paving batching plant

    • Installation of sediment controls (including the installation of a

    waste detention basin in the north western corner of the site).

    Earthworks • Strip topsoil (if present), levelling and grading of site

    • Placement of fill and hardstand materials for hardstand areas

    Establishment of batching plant

    facilities

    • Assembly of site sheds, offices and establishment of staff car

    park

    • Installation of site facilities and services (electricity, water and

    communications)

    • Power installation will run parallel to the construction access

    road along 4 poles placed in the road corridor. Power for the

    paving batching plant will be provided by a portable genset

    • Install material conveyors, batching plant silos, hoppers, testing

    lab, curing shed and car park

    • Establish of stockpile areas and truck washdown area

    • Establish clean water diversions

    • Establish first flush system and wastewater retention

    basin/system

    Access roads Main batching plant

    • Widening of existing access track from George Booth Drive and

    to site.

    • Access road will be at max. 10m wide and will be spray sealed.

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    Activity Description

    Paving batching plant

    • Widening of existing ramp onto the main alignment

    Batching plant operational activities • Truck and agitator washdown

    • Dewatering

    • Recycling waste concrete

    2.4 Batching plant facilities

    The main and paving batching plants will be approximately 1.2 and 1 hectares in area respectively and

    will accommodate the following facilities:

    � A concrete batching plant.

    � A 400 kw generator.

    � A concrete silo.

    � Five 15 metre by 15 metre aggregate bins.

    � Two storage containers for additives.

    � On-site parking for approximately 30 vehicles.

    � Sediment pond.

    The soil and concrete testing lab and the curing shed will be located at the Project Office site.

    2.5 Batch plant access

    Access to the main batching plant will be from:

    1. George Booth Drive to the south via a new construction access road around the perimeter of

    remnant vegetation.

    2. Existing unsealed accesses track which leads to the Project Office and HEA road corridor to

    the north.

    A description of access road widening and measures to minimise impacts from road access and the

    historic cutting of the Richmond Vale railway corridor is covered in ECMS 3 Site Construction

    Compound, section 2.4 and in Attachment A.

    The paving batching plant will accessed from the main alignment through an existing access track.

    2.6 Batching plant process

    A wet mix mixer plant will be installed consisting of aggregate bins with associated weigh hoppers,

    conveyors, cement silos, a mixer, and an office (batch hut). Up to five aggregate stockpiles will be

    established on the ground in proximity to the plant. Each stockpile will cover an area of approximately

    15 metres by 15 metres. Aggregates will be stockpiled to a height of approximately 3 metres.

    The plant would also include two storage containers, each 6 m x 3 m for concrete additives, including

    air entraining agent and water reducing agent.

    Two water tanks will be located in proximity to the batch plant. A slump testing area, a small storage

    and laydown (hardstand) and an ablution facility will be at the site. The site will store a self-bunded

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    twin skin tank for the storage of diesel and a self-bunded tank for the storage of various oils. The

    workshop, soil and testing lab will be located at the Project Office site.

    On-site parking will be provided for approximately 30 vehicles in the vicinity of the workshop. The

    batch plant and workshop will be floodlit at night for security reasons. A 1.8 metre high fence will also

    be erected around the perimeter for security purposes. A septic effluent disposal system will be

    installed to manage domestic wastewater generated on site.

    2.7 Concrete waste solids reuse

    Concrete waste solids will be removed routinely from the settlement pits and reused, primarily for

    roadbase and fill during construction and finishing works. Where concrete solids cannot be reused,

    excess concrete will be allowed to settle and then disposed of at a licensed waste facility that accepts,

    ‘General Waste (non-putrescibles)’.

    There will be no disposal of concrete wastewater to sewer, soil, waterways or drains. Agitator trucks

    transporting concrete will be washed out at the concrete batching plant, unless the distance from the

    concrete batching plant would lead to the impairment of operation of the agitator truck. Where site

    washout is required of concrete laden equipment, vehicles or machinery, a geotextile lined ditch will be

    constructed in accordance with the ‘Best Practice Guideline for Concreting Contractors’, DECCW, Nov

    2004 (refer Attachment E for an extract of the guideline).

    2.8 Water capture, use and reuse

    Water saving measures will include:

    • Use of a high pressure, low volume nozzle for wash down operations in the truck wash bay.

    • Siphoning off water capture in the sediment basin for washdown operations.

    2.9 Hours of operation

    Normal construction hours apply to the activities included in this ECMS. These hours are:

    � Monday to Friday 7:00 am – 6:00 pm

    � Saturdays: 8:00 am – 1:00 pm

    � Sundays & Public Holidays – no work

    The batching plants will be required for the duration of the Stage 2 construction works which is

    expected to be for approximately 2.5 years.

    Out of hours work may be required for a number of project components such as pre-cast beams and

    large bridge pours. As per the EPL:32965, out of hours work can be undertaken for dust suppression.

    With the storage and handling of raw materials for concrete production it is likely that dust suppression

    will be required in high wind conditions at the batching plant. Out of hours work, shall be carried out in

    accordance with the Project EPL (section 3.2), and the Noise and Vibration Management Plan.

    2.10 Site rehabilitation and restoration

    ), The condition of the batching plant sites is currently highly disturbed as a result of previous

    earthworks. Therefore, the final rehabilitation strategy for the batching plant sites will be negotiated

    with the land owners. Where possible, the rehabilitation strategy adopted for the sites will seek to

    improve on the current condition of the area; however, this will depend on the land owner’s plans for

    this parcel of land.

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    3 Key roles and responsibilities

    Refer to the ‘General Construction ECMS #1 for roles and responsibilities for key personnel.

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    4 Statutory requirements and approvals

    A summary of the key statutory requirements and approvals for the works are detailed in the table

    below. This is followed by a table with provisions for legislative breaches.

    Table 4.1: Legislation and statutory obligations

    Regulator Licence/Approval etc Relevant works

    Dept of Planning MCoA -Comply with Blue Book:

    Managing Urban Stormwater: Soil

    and Construction

    Design and construction of

    waterway crossing and erosion

    sediment control structures

    EPA Environmental Protection Licence -

    POEO Act 1997

    Discharge from sediment basins

    Impact on waterways

    Noise criteria

    OEH, Dept of Planning Approval as per MCoA -60 To clear areas that exceeds project

    limits

    OEH Licence to harm or pick threatened

    species, populations or ecological

    communities or damage habitat

    Clearing or disturbed areas

    threatened species, populations, or

    EEC

    Seed and cutting collection

    NSW Heritage Council NSW Heritage Act 1977:

    s139 excavation permit

    s146 notice of relic discovery

    Excavation near a heritage item

    OEH National Parks and Wildlife Act

    1974:

    s87 / s90 Aboriginal Heritage

    Impact Permit

    Construction works near an

    aboriginal sites

    Note: Refer also to Table 3.5 in the CEMP for further information on the consultation with external

    stakeholders.

    4.1 Revision of ECMS to reflect licence conditions

    The EPA’s Environmental Protection Licence:32965 has been incorporated into this ECMS. Up-to-

    date copies of the licence are available on the web-based document management system Keystone

    and as a hard copy at the main site compound (held by the Project Environmental Manager).

    4.2 ECMS consultation process

    Consultation for the project has been undertaken with agencies and stakeholders including:

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    � Department of Planning

    � OEH

    � Lake Macquarie City Council

    � Maitland City Council

    � Cessnock City Council

    � Industries and Investment NSW

    � Utility providers

    � Local Aboriginal Land Councils

    Consultation has been undertaken with Coal and Allied Pty Ltd (the owner of land affected by the

    construction access road) and Energy Australia (the easement owner to which the construction access

    road will traverse). Consent from these stakeholders has been obtained prior to construction of the

    Structures batch plant on the Holmes property.

    The property owner has been consulted regarding the location of the cattle proof fencing and cattle

    crossing. Further requirements resulting from the consultation process are contained in the ECMS 3,

    Attachment A, under ‘Landuse and Property’.

    The Paving concrete batch plant shall be located within the Project corridor. Ongoing consultation

    during the works covered under this ECMS will be undertaken with relevant stakeholders where

    changes to works occur under this ECMS.

    Any further updates to the ECMS requires EMR endorsement and a summary of changes and updates

    will be provided to the public for their information, and a full copy of the ECMS be made available on

    the internet, following EMR endorsement.

    4.3 Minister’s Conditions of Approval

    Minister’s Condition of Approval 30 is reproduced in the following table with cross reference to where

    the condition is addressed in this ECMS or other project management documents.

    Table 4.2: Matrix of Minister’s Condition of Approval 30

    Reference CoA 30 Requirement ECMS Reference

    The Proponent shall prepare Construction Method Statements (CMS) identified in the CEMP required by Condition 24. CMSs must be certified by the EMR as being in accordance with the Conditions of Approval and all undertakings made in the EIS, Representations Report and the Approved CEMP.

    Page 2

    Each CMS shall include, but not be limited to:

    i construction activities and processes associated with the relevant construction site(s), including staging and timing of the proposed works;

    1. Introduction and 2.

    Scope of works

    ii specific hours of operation for all key elements including off-site movements; 2.7 Hours of Operation

    iii cover specific environmental management objectives and strategies for the environmental system elements and include, but not be limited to:

    Environmental Control

    Plan at Attachment A -

    will cover relevant issues

    • noise and vibration;

    � & ECMS#1

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    Reference CoA 30 Requirement ECMS Reference

    • air quality;

    � & ECMS#1

    • water quality;

    � & ECMS#1

    • erosion and sedimentation;

    � & ECMS#1

    • access and traffic;

    ECMS#1

    • property acquisition and/or adjustments

    CEMP

    • heritage and archaeology

    � & ECMS#1

    • flora and fauna

    � & ECMS#1

    • groundwater

    CEMP

    • acid sulfate soils

    ECMS for bridge over Wallis Creek

    • spoil stockpiling and disposal

    � & ECMS#1

    • waste/resource management

    � & ECMS#1

    • weed management

    ECMS#1

    • flooding and stormwater control

    � & ECMS#1

    • geotechnical issues

    CEMP

    • visual screening

    CEMP

    • landscaping and rehabilitation

    � & ECMS#1

    • safety, hazards and risk

    CEMP

    • energy use

    CEMP

    • resource use and recycling

    � & ECMS#1

    • utilities

    CEMP

    iv address, but not be limited to:

    a. identification of the statutory and other obligations which the Proponent is

    required to fulfil during project construction, including all approvals and consultations/agreements required from other authorities and stakeholders, and key legislation and policies which control the Proponent’s construction of the project;

    4. Statutory requirements

    and approvals

    b. measures to avoid and/or control the occurrence of environmental

    impacts; Environmental Control

    Plan - Attachment A

    c. measures (where practicable and cost effective) to provide positive

    environmental offsets to unavoidable environmental impacts; NA

    d. definition of the role, responsibility, authority, accountability and reporting

    of personnel relevant to compliance with the CMS; 3. Key roles and

    responsibilities & ECP in

    Att A & ECMS#1

    e. site specific environmental management techniques and processes for

    all construction processes which are important for the quality of the environment in respect of permanent and/or temporary works;

    ECP in Attachment A

    f. site specific monitoring, inspection and test plans for all activities and

    environmental qualities which are important to the environmental management of the project, including performance criteria, tests, and protocols (eg. frequency and location);

    ECP in Attachment A

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    Reference CoA 30 Requirement ECMS Reference

    g. locational details of important elements such as temporary noise barriers;

    portable offices and amenities; truck, plant and materials storage; access locations; provision of site hoardings etc;

    ECP in Attachment B

    h. environmental management instructions for all complex environmental

    control processes which do not follow common practice or where the absence of such instructions could be potentially detrimental to the environment;

    Refer to Table 1-3 in ECMS

    #1 General Construction

    i. steps the Proponent intends to take to ensure that all Plans and Sub

    Plans are being complied with; CEMP

    j. consultation requirements with relevant government agencies and utility/

    service providers; and, Section 4

    k. community consultation and notification strategy (including local

    community, businesses, relevant government agencies, and all relevant Councils), and complaint handling procedures.

    ECMS#1

    Specific requirements of the main environmental system elements referred to in (iii) shall be as required under the conditions of this approval and/or as required under any licence or approval. All CMS shall be made publicly available

    Section 4.3

    Table 4.3: Matrix of Minister’s Condition of Approval 129 as applied to the main

    (Structures) batching plant

    Criteria Compliance with the criteria Compliant

    a) Be located more than 100

    metres from a waterway.

    The site is located approximately 350 metres to the west of

    Surveyors Creek and approximately 580 metres to the south of the

    farm dam.

    Yes

    b) Have ready access to the road

    network.

    The site is readily accessible from George Booth Drive via an

    existing unsealed access track and a cleared electricity easement.

    Minor works would be required to be undertaken on George Booth

    Drive to improve the safety of the proposed access road.

    Yes

    c) Do not cause exceedance of

    the maximum native vegetation

    clearing limit specified under

    condition 60 of the Conditions

    of Approval.

    The proposal could result in 0.13 hectares of native vegetation to

    be cleared from the subject site (i.e. total clearing for the

    construction compound, batching plant and associated access

    roads). The clearing of this vegetation would not result in more

    than 182 hectares of native vegetation to be cleared for the Hunter

    Expressway project, in its entirety.

    Yes

    d) Be located on relatively level

    land.

    The site is located on relatively level land that has an average

    slope of less than 5%. Local variations in the ground level occur

    throughout the site due to previous earth works; however, these

    variations in ground level would be levelled out during the site

    establishment works.

    Yes

  • Hunter Expressway Alliance

    ECMS - Concrete Production and Delivery (Batch plant)

    HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review Page 14

    Criteria Compliance with the criteria Compliant

    e) Be separated from the nearest

    residences by at least 200

    metres (or at least 250 metres

    for a temporary batching plant

    and stockpiling sites).

    The site is located approximately 800 metres from the closest

    residential receiver.

    Yes

    f) Be above the 20 ARI flood level

    unless a contingency plan to

    manage flooding is prepared

    and implemented.

    The site is located above the 20 ARI flood level. Yes

    g) Shall not unreasonably affect

    the land use of adjacent

    properties.

    The closest adjacent property to the batching plant is located

    directly adjacent to the southern boundary of the site (owned by

    Coal and Allied). The current land use of this property comprises

    undeveloped bushland. The batching plant would not impact on the

    current function of this property.

    Land use of adjacent properties located to the north, east and west

    of the site would not be affected by the batching plant due to the

    large offset distance between these properties and the site.

    Similarly, adjacent agricultural land located within the property

    would not be impacted due to the extent of remnant vegetation that

    buffers this land use from the site.

    Yes

    h) Provide sufficient area for the

    storage of raw materials to

    minimise, to the greatest extent

    practical, the number of

    deliveries required outside

    standard construction hours.

    The site would allow for sufficient storage of raw materials to

    minimise the number of deliveries required outside standard

    construction hours.

    Yes

    i) Shall not impact on heritage

    sites beyond those already

    impacted by the project.

    No Aboriginal or historic heritage items would be impacted by the

    batching plant.

    Yes

    Table 4.4: Matrix of Minister’s Condition of Approval 129 as applied to the paving batching

    plant

    Criteria Compliance with the criteria Compliant

    a) Be located more than 100

    metres from a waterway.

    Surveyors Creek is more than 500 metres from the proposed site Yes

    b) Have ready access to the road

    network.

    existing access via George Booth Drive and constructed access is

    available via HEA Junction no: 4.

    Yes

  • Hunter Expressway Alliance

    ECMS - Concrete Production and Delivery (Batch plant)

    HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review Page 15

    Criteria Compliance with the criteria Compliant

    c) Do not cause exceedance of

    the maximum native vegetation

    clearing limit specified under

    condition 60 of the Conditions

    of Approval.

    No vegetation clearing would be required for use of the site. Yes

    d) Be located on relatively level

    land.

    Land previously levelled at commencement of construction

    activities of the Hunter Expressway.

    Yes

    e) Be separated from the nearest

    residences by at least 200

    metres (or at least 250 metres

    for a temporary batching plant

    and stockpiling sites).

    The nearest residence is more than 1200 metres from the

    proposed site.

    Yes

    f) Be above the 20 ARI flood level

    unless a contingency plan to

    manage flooding is prepared

    and implemented.

    Located upslope of the Expressway formation. Yes

    g) Shall not unreasonably affect

    the land use of adjacent

    properties.

    Situated entirely within the project footprint. Yes

    h) Provide sufficient area for the

    storage of raw materials to

    minimise, to the greatest extent

    practical, the number of

    deliveries required outside

    standard construction hours.

    The site would allow for sufficient storage of raw materials to

    minimise the number of deliveries required outside standard

    construction hours.

    Yes

    i) Shall not impact on heritage

    sites beyond those already

    impacted by the project.

    Site has been previously heavily disturbed, is deemed low risk of

    encountering Aboriginal heritage items or objects and is located

    within Project’s Section 90 consent area.

    Yes

  • Hunter Expressway Alliance

    ECMS - Concrete Production and Delivery (Batch plant)

    HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review Page 16

    5 Site induction and training

    Refer to the General Construction ECMS #1 for induction and training details.

    6 Monitoring and inspection

    Refer to the Environmental Control Plan, Attachment A for details on monitoring and inspection.

    7 Revisions

    Revisions to the ECMS will be made as required and changes will be endorsed by the EMR as

    required.

    The current copy of this ECMS is kept at the worksite and at the HEA Project Display Office following

    EMR endorsement (where they may be viewed on request) and a summary of the update provided to

    community members for their information via the HEA Project Display Office.

    8 Document control

    Project document control is detailed in the PMP and project filing and numbering is defined in

    procedure HEA-MP-GL-OPS-002-00. When the document is reviewed a new revision number is

    assigned by the Environment Manager.

    The current revision of the ECMS will be available and displayed in site offices for ongoing

    implementation and amendment as conditions or approval change. The documents will be saved in

    electronic project management system, Keystone.

  • Hunter Expressway Alliance

    ECMS - Concrete Production and Delivery (Batch plant)

    HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review Page 17

    9 Attachments

    Attachment A – Environmental Control Plan.

    Attachment B – Progressive Erosion and Sediment Control Plan – main batch plant site

    Attachment C – Batching plant first flush system

    Attachment D – Environmental Update 12 – Concrete Batch Plant Sites

    Attachment E - Environmental best practice for concrete washout

  • HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review

    Attachment A

    Environmental Control Plan

  • 50 mm on Original

    GENHEA GIS

    HUNTER EXPRESSWAY ALLIANCE

    Company Zone Type Figure No. Issue

    DescriptionIssue Date Approved

    /

    /

    /

    /

    /

    /

    /

    !

    !

    !

    !

    !

    !

    !!! !!

    !

    !

    !

    !

    !

    !

    !

    !

    !

    !

    !

    !D(

    !D(

    !D(

    !D(

    !D(

    !D(

    !D(

    !D(

    !D(

    !

    Richmond Valley Railway Corridor

    BATCHING PLANT

    CONSTRUCTION COMPOUNDPROJECT OFFICE

    ENERGY AUSTRALIAELECTRICITY EASEMENT

    NEW CULVERT CROSSINGOF SURVEYORS CREEK

    COAL AND ALLIED LAND

    AGG BIN 15MX15M

    BATCH PLANT CARPARK 30 SPACES

    2x CONTAINERS 6MX3M

    AGG BIN 15MX15M

    AGG BIN 15MX15M

    AGG BIN 15MX15M

    COVERED WALKWAY BATCH PLANTABLUTIONS

    SED POND

    Mine working

    Old mine works

    Excavated pit/trench

    GEORGE BOOTH DRIVE

    Former quarry

    BERESFIELD

    Viaducts

    Rest area

    Buchanan interchange

    Newcastle interchange

    Kurri Kurri interchange

    Skyline Ridge cut

    JOHN REN

    SHA W DRIVE

    GEORGE BOOTH DRIVE

    BLA CKHILL ROAD

    MINMI ROAD

    LEGG

    ETTS

    DRIVE

    SYDN

    EY N

    EWCA

    STLE

    FRE

    EWAYBU

    CHAN

    AN

    ROAD

    NEWCASTLE

    LINK ROAD

    KURRI KURRI

    NEWCASTLE

    1:1000

    0 120 m

    Expressway project boundary

    Road design (DES HEA 007)

    Batch Plant design

    New Construction Compound Access Road

    Batching plant

    / Power pole

    Proposed powerline

    ! Hollow-bearing tree

    !D( Hollow bearing tree to be removed

    Exotic Grassland with Scattered Trees (EEC)

    Cabbage Gum Floodplain Woodland (EEC)

    Hinterland Spotted Gum - Red Ironbark Forest (EEC)

    Grey Gum Redgum Paperbark Forest (EEC)

    ! European heritage location

    ! Indigenous heritage location

    Watercourse

    Existing boundary

    Existing easement

    Existing Roads

    Type

    Primary road

    Arterial road

    Sub-arterial road

    EN186 B

    ENVIRONMENTAL CONSTRUCTIONMETHOD STATEMENT

    BATCH PLANTA FOR INFORMATION 27 JUL 10

    0000

    PRELIMINARY

    CM

    Status

    Original Size

    Coordinate System

    Height Datum

    Drawn

    Designed

    Date Printed

    A0

    MGA ZONE 56

    AHD

    NOT USED FOR CONSTRUCTION

    EM

    23 SEP 10Friday, September 23, 2010 5:16:42 PM\\10.10.25.35\data\HEA\L-GIS\A_Current\B_Maps\HEA-GEN-GIS-EN186-A0-Environmental construction method statement-Batch plant-B.mxd

    Richmond Valley Railway Corridor (Historic Cutting)

    Flora & Fauna Management

    Sub-Plan Ref: HEA Flora and Fauna Management Sub Plan (HEA-PL-GL-FFP-001-00-00)

    Objectives: To manage vegetation clearance and control weed infestation in worksite disturbed areas and manage any fauna encountered during construction works.

    Performance Criteria: • No disturbance to flora or fauna outside the clearing limits

    • No increase in weed distribution or introduction of new weeds

    Mitigation Measures Responsibility

    Where ground disturbing works are required to be undertaken outside of site boundary as indicated in Attachment B, further Aboriginal cultural heritage and archaeological assessment will be undertaken.

    PEM

    Undertake all clearing and grubbing works in accordance with ECMS #2 Clearing and Topsoil Management and RTA QA Specification G40 - Clearing and Grubbing.

    CM

    Minimise clearing native vegetation, particularly the remnant vegetation around concrete batching plant site and access corridor. Clear no more than 0.13 hectares of native vegetation for the construction compound, batching plant and associated access roads.

    SS/PEM

    Avoid clearing hollow-bearing trees. If more than the 13 identified hollow-bearing trees require removal (in the site office, batch plant and access track area), to change access route to batch plant site, consult with PEM to assess compliance with Consistency Assessment 2010.

    SS/PEM

    Indigenous Heritage Management

    Sub Plan Ref: Indigenous Heritage Management Sub Plan (HEA-PL-GL-IHP-001-00)

    Objective: To protect any identified heritage items where they are to be preserved. To ensure correct protocols are followed where unidentified items are discovered.

    Performance Criteria: No damage to any known indigenous heritage items. Any heritage items inadvertently encountered during construction are protected in accordance with NSW legislative requirements.

    Mitigation Measures Responsibility

    No Aboriginal or historic heritage items are to be impacted by the construction and operation of the concrete batching plant.

    SS/PEM

    Restrict all construction activities to within the concrete batching plant and associated construction access roads.

    SS

    Undertake further Aboriginal cultural heritage and archaeological assessment if ground disturbing works are required outside of this area.

    SS

    Historical Heritage Management

    Sub-Plan Ref: Historical Heritage Management Plan (HEA-GL-PL-HHP-001)

    Objectives: To minimise disturbance and avoid damage to any identified historical heritage items during construction.

    Performance Criteria:

    Heritage items are protected during construction in accordance with NSW legislative requirements.

    Management Measures Responsibility

    See ECMS#3: Site Construction Compound, section 2.4 and the Environmental Control Plan for mitigation measures and construction requirements regarding access road construction over the Richmond Vale Railway Corridor.

    SS

    Soil and Surface Water Management

    Sub-Plan Ref: Soil and Water Management Sub Plan (HEA-PL-GL-SWP-001-00-02)

    Regulations and procedures: • Managing Urban Stormwater - Soils and Construction, 4th ed, 2004 NSW DECCW • Managing Urban Stormwater - Soil and Construction, Volume 2C - Unsealed Roads, 2008,NSW

    DECCW • Aust & NZ Guidelines for Fresh and Marine Water Quality, 2000, ANZECC

    • HEA Refuelling and Liquid Storage Protocol (HEA-WP-GL-ENV-003-00-00)

    Objective: Minimise erosion and sediment loss from the worksite and comply with water quality standards for discharge from worksite.

    Performance criteria:

    1. DECCW water quality discharge criteria for all design storm are met

    2. No pollution incidents causing environmental harm

    3. Background water quality levels in surrounding waterways are maintained

    4. No erosion and sedimentation impacts resulting from earthworks and other construction activities due to effective erosion and sedimentation control measures

    5. Pollution prevented due to effective containment and spill control for all fuels and chemicals

    Discharge criteria for basins:

    Oil & grease: pH: TSS:

    No visible 6.5-8.5 < 50 mg/L

    Mitigation Measures Responsibility

    No water extraction is to occur from the farm dam. CM/SS

    Install erosion and sediment control measures as per the Progressive Erosion and Sediment Control Plan –Batch Plant, Attachment C

    SS

    Update PESCP as construction progresses. SS/PEM

    Capture and treat wastewater for the reuse of water and cement laden solids captured in the sediment basin. Allow sufficient time for the settling to occur. Reuse water for dust suppression

    SS

    Use high pressure low volume nozzle for wash down to minimise water usage. SS

    Keep adequate quantities of emergency response materials, such as oil spill kits, absorbent materials, sand bags, flocculating agents and pH buffer solutions, readily available at the batch plant.

    SS

    Monitoring

    Complete regular inspections of public roads at access points and batching plant exits to monitor efficiency of wash down/rumble pad facilities and to prevent mud tracking onto public roads (ie George Booth Drive).

    SS/PEM

    Noise and Vibration Management

    Sub-Plan Ref: Construction Noise and Vibration Management Sub Plan (HEA-PL-GL-NVP-001-00-02)

    Objective: To minimise the impacts of noise and vibration from construction activities on surrounding receivers.

    Performance criteria: Ensure noise exceedances are avoided by monitoring at sensitive receivers and where exceedances impact on residents, apply mitigation strategies.

    Sensitive noise receivers:

    1. residential dwelling located adjacent to the western property boundary) approximately 800 metres from the batching plant site.

    2. poultry farm, located towards the north-western corner of the property ( 900 metres from the batching plant site).

    The site is located approximately 800 metres from the closest residential receiver.

    Construction traffic noise: • Less than 60 dB(A) LAeq,1hr during working hours; 55 dB(A) LAeq,1hr outside of working hours

    • Not to increase existing noise at any receiver > 2 dB(A).

    Mitigation Measures Responsibility

    Undertake a baseline noise survey at the nearest residential receivers. PEM

    When out of hours works are required, notification by letterbox drop will be required not less than 5 days prior and not more than 14 days before the scheduled work. [EPL:32965, section 3.4]

    SE

    Where a noise complaint is made, investigate within 2 hours, or in a timeframe as agreed with the complainant. Offer to undertake noise monitoring. [EPL:32965, section M5.5].

    SE

    Construction Air Quality Management

    Sub Plan ref: Construction Air Quality Management Plan (HEA-PL-GL-AQP-001-00)

    Objective: To minimise dust generation and manage emissions from construction activities to prevent impacts on surrounding receivers.

    Performance criteria: • Depositional dust goals of max 4 g/m2 per month, subject to monthly background levels, as per DECCW

    guidelines. • No complaints received from nearby residents or local road users.

    Mitigation Measures Responsibility

    Dust suppression activities

    Regularly control dust emissions using water sprays on water carts over unsealed trafficable areas, earthworks and stockpiles, and other surfaces as necessary. Ensure carts are available and maintained at all times.

    SS, SE

    Clean any dirt tracked onto public roadways from construction vehicles using brooms or a street sweeper.

    SS, SE

    Suspend work if excessive dust generation from surface dirt accumulation occurs until dust emissions are controlled.

    SE, CM, PEM

    Enclose storage / weigh bin tops to minimise wind-generated dust emissions. Utilise recovered wastewater for dust suppression of aggregate stockpiles.

    SS

    Vehicle, plant and equipment

    Cover loads and secure tailgates from construction vehicles prior to leaving worksite to prevent loss of load on public roads and areas accessible to the public. Any spillage is required to be removed within 24 hours.

    SS

    Restrict and monitor construction traffic using local unsealed roads to 40 km/hr. Install signage. SS, SE

    Control access to all construction areas to specific entry/exit points and confine vehicle movements to designated construction areas.

    SS, SE

    Provide facilities, such as rumble grids at site exit points to minimise tracking mud, dirt or other material onto a public road or footpath.

    SE, CM

    Ensure wheels and undercarriage of trucks are clean prior to the exiting the worksite. (See the flora and fauna section for more detail on these measures).

    SE, CM

    Extreme conditions

    On high wind days, either reprogram construction activities work that could cause a nuisance or danger to people or property, or relocate to areas removed from sensitive receptors.

    SE, CM

    Avoid use of lime for stabilisation activities during windy days. SS, SE

    A call out system will be in place to respond to dust suppression requirements out of hours and on weekends.

    CM

    Monitoring

    Monitor dust deposition monthly throughout construction to determine effectiveness of dust suppression measures. Review and modify dust control and operational procedures if dust deposition levels are exceeded.

    PEM

    Monitor and record any complaints received in relation to air quality. CRM, PEM

    Visually monitor dust during daily inspections during pre-construction and construction phase. SE, PEM

    Regularly monitor the work sites to ensure that water spraying is not causing any erosion or sediment impacts.

    SS, PEM

    Complete regular inspections of public roads at access points and construction site exits to monitor efficiency of wash down/rumble grid facilities.

    SE, PEM

    Waste Management

    Sub Plan Ref: Waste Management and Reuse Plan (HEA-PL-GL-WMP-001-00)

    Objective: To implement reuse and recycling programs where practicable for waste generated from the project activities.

    Performance Criteria: Refer to Waste and Reuse subplan for performance criteria and specific targets for each waste types.

    Mitigation Measures Responsibility

    Remove site rubbish, particularly along existing access roads. SS

    Provide clearly signed and categorised waste bins in convenient locations for segregation of recyclable materials.

    SS

    Any waste produced by the site will be contained within boundaries of batch plant or transferred to the site construction compound and removed at regular intervals.

    CM

    Re-use waste concrete for roadbase, in concrete batching or as fill where suitable or transport it to a licensed landfill to receive it.

    SS/SE

    Check that waste contractor removes septic tank / portaloo wastes via licensed tanker / truck on a regular basis.

    SE/SS

    Land use and property Responsibility

    Consult with land owner to determine exact location of cattle proof fence and cattle crossing. CM/CRM

    Install cattle proof fencing around the perimeter of the HEA concrete batching plant. CM

    Maintain access through the Energy Australia easement for the duration of construction. SS

    Consult with Energy Australia and Coal and Allied prior to construction of access road SS

    Install a cattle crossing in the site fencing to allow cattle to access paddock areas on the eastern side of the property.

    CM

    Do not remove or impact the dam and existing cattle yards for the duration of construction. SS

    Visual amenity Responsibility

    Install low light-spill lighting at the batch plant site. CM

    Keep work and batch plant site in a tidy condition and within clearly defined boundaries. SS

    Hours of work

    Audible Construction Works

    • Monday to Friday 7am-6pm

    • Saturday 8am-1pm

    Out of Hours Delivery

    • Oversize Plant & Equipment in accordance with MCoA 61

    • Community Relations Manager to be notified in advance

    Out-of-Hours Operations

    • No audible construction works out of hours.

    • Delivery of materials required by the Police or other authorities are permitted out of hours.

    • All out of standard hours construction works to be undertaken subject to approval from Environment Manager and Community Relations Manager.

    Sundays or Public Holidays - No Audible Construction Works

    HEA Points of Contact

    For all Public Enquiries

    HEA Community Response Line 1800 001 267

    DECCW Pollution Line 131 555

    Peter Chatburn Project Director 0418 233 905

    Aiden McCann Construction Manager (CM) 0418 627 085

    Todd Myers Constructability Manager 0418 637 173

    Tracey Doczy Project Environment Manager (PEM)

    0439 300 118

    Erran Woodward Environment Officer 0437 343 178

    Louise Neville Community Relation Manager (CRM)

    0447 464 031

    Ken Holmes Environmental Management Representative (EMR)

    0438 046 261

    David Ledlin RTA Senior Environmental Officer 0411 126 989

    Fauna rescue Wires 1300 094 737

    Wildlife Aid Rescue – Hunter Valley

    0447 667 737

    Native Animal Trust Fund – Wildlife Rescue Service

    0418 628 483

    Management Sub-Plans

    Construction Air Quality

    HEA-PL-GL-AQP-001

    Flora and Fauna HEA-PL-GL-FFP-001

    Hazard and Risk HEA-PL-GL-HRP-001

    Historical Heritage HEA-PL-GL-HHP-001

    Indigenous Heritage HEA-PL-GL-IHP-001

    Construction Noise and Vibration

    HEA-PL-GL-NVP-001

    Soil and Water HEA-PL-GL-SWP-001

    Spoil HEA-PL-GL-SMP-001

    Utility Services HEA-PL-GL-USP-001

    Waste Management/Reuse

    HEA-PL-GL-WMP-001

    Community Involvement Plan

    HEA-PL-GL-CIP-001

    Licences/Approvals

    Environment Protection Licence No. 13296

    Section 87/90 Permit – National Parks and Wildlife Act 1974

    Part 3A Permit – Rivers and Foreshores Improvement Act 1948

  • HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review

    Attachment B

    Progressive Erosion and Sediment Control Plan –Batch Plant

  • khincksText Box

    Notes

    All dirty water around the batch plant is directed into the Settling System. This Settling system acts as a first flush system as well (Wedge Pit).

    The first flush system works by capturing the dirty water runoff for a 10mm rainfall event (3500litres).

    If the wedge pit overtops water is directed into a overflow cut diversion drain that flows into the sediment pond.

    All site water from the storage area will be directed into the sediment pond.

    As the batch plant area is situated in a cut, clean water is directed around the site via a large diversion bund All shown basins will be sized as per Blue Book for inclusion on the Environmental Protection License. All controls will be installed and maintained as per the Blue Book.

    Legend

    Dirty water Diversion Drain

    Clean water Diversion

    Diversion Bund

    Drawn By: Kris Hincks 14/8/12Reviewed By: John Wright 14/8/12

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    khincksText BoxWedge Pit

    khincksText BoxAccess Road

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    khincksText BoxSed Pond

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    khincksText BoxProgressive Erosion and Sediment Control Plan - Paving Batch Plant

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  • HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review

    Attachment C

    Batching plant first flush system

  • Forest Road Batch PlantFirst Flush System

    Approved By:

    Section Through Settling Tanks

    Bernard Ryan 1/7/2009

    Settling Tank No. 2

    Settling Tank No. 1

    Settling Wedge pit

    Truck Wash Down Area

    ConcreteBatchPlant

    First Flush bypass point.

    Notes on First Flush System:1. All dirty water around the batch plants is directed into the

    Settling System. This Settling system acts as a first flush system as well.

    2. The first flush system works by capturing the dirty water runoff for a 10mm rainfall event (5,600 litres). However, this system has the capability to capture a 55mm rainfall event (31,000 litres) assuming the wedge pit valve is closed and the pit is full and both containers are full but not overflowing. If the wedge pit is not full then the first flush capacity is increased. .

    3. After the system if "full", the water banks up the inlet channels to the point that it starts to overflow at the bypass point.

    4. All clean water falling on the site is diverted around settling tanks and into the Batch Plant Dam.

    5. The second settling tank has an additional capacity of

    Dirty Water Catchment Area =

    560m2

    Clean WaterRunoff

    Batching Water

    P

    Wedge Pit

    SettlingTank No. 1Settling

    Tank No. 2

    V

    Pump Return

    Free Board Capacity = 31,000 Litres

    Additional Capacity =

    20,000L

    ZamboltARectangle

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  • HEA-CMS-GL-ENV-004-00-02_Batchplant TD Review

    Attachment D

    Environmental Update 12 - Concrete Batch Plant Sites

  • Environment Update Number 12Concrete Batch Plant Sites

    Document Number: HEA-RP-GL-ENV-012-00-00

    10/09/2010Environment Update: 12Document Number: HEA-RP-GL-ENV-012-00-0

    Page 1

    INTRODUCTION

    The Protection of the Environment Operations Act1997 (POEO Act) sets out requirements for protectingthe environment from pollution. The HEA and itscontractors therefore have a legal obligation to ensureadequate management of concrete operations andprevent contaminated materials entering waterways.

    Thiess currently hold Environmental ProtectionLicences for the operation of concrete batching plants.These licences shall be available to site staff and keptat the batch plant premises (as well as on the HEAdocument management system).

    The following summary information is applicable toHEA batch plant sites:

    SURFACE WATER MANAGEMENT

    1. Clean water diversion (bunds or drains) shallbe installed to prevent off site water comingonto the batch plant site.

    2. A First Flush (rainfall capture) System shall beinstalled - Refer to First Flush for Batch PlantLayout Sheet (to be displayed at each of theHEA batch plants)

    Figure 1: Surface water being directed into the WRS.

    3. A three bay Water Retention System (WRS)shall be provided to catch and control waterrun-off from the batch plant area. The watershall be reused for batching by pumping outof the most downstream holding tank andback into the batch plant water supply tank.This shall be undertaken after overnightsettling has occurred.

    4. Capacity to capture (at least) a 10mm rainfallevent shall be maintained at all times. Prior topredicted, large rainfall events (e.g. greaterthan 30mm), additional capacity in the WRSshould be provided via increased dewateringto the batching water tank.

    Figure 2: Value which allows the water level tobe reduced in the wedge pit.

    5. At no time shall water from the WRS bepumped offsite.

  • Environment Update Number 12Concrete Batch Plant Sites

    Document Number: HEA-RP-GL-ENV-012-00-00

    10/09/2010Environment Update: 12Document Number: HEA-RP-GL-ENV-012-00-0

    Page 2

    WASTE CONCRETE MANAGEMENT

    1. Concrete waste excavated from the wedge pitshall be positioned for drying immediatelynext to the wedge pit. Once dry it can betransferred to an appropriate storage location(refer to First Flush for Batch Plant LayoutSheet), prior to disposal or re-incorporationinto road construction materials.

    2. All agitators loaded at the batch plant shallwashout directly into the wedge pit.

    BASIN MANAGEMENT

    1. After a rainfall event, all end of line sedimentbasins/dams are to be restored to theirrequired capacity within 5 days (see waterlevel marker install at each basin). This shouldbe undertaken via using the water forbatching operations, and to fill water carts inthe first instance. If the capacity can not berestored via these methods within 3 days,treatment, testing and releasing of the waterwill be necessary.

    Contact Environment Staff prior to releasing wateroffsite from batching plants.

    DUST MANAGEMENT

    1. During paving operations, the risk of trackingcement and mud onto public roads isincreased. Measures to reduce mud trackinginclude:a. the installation of rumble grids or

    hardstand areas at batch plant exitspoints

    b. regular monitoring and clean up via astreet sweeper or water-cart broom

    2. Stockpiles shall be kept damp to prevent winderosion and associated dust issues.

    Figure 3: Water sprinkler systems assist in reducingdust issues

    For more information or to report a spill, please contact the Environment Team

    Tracey Doczy (Environment Manager) 0439 300 118Erran Woodward (Environment Officer) 0437 343 178Chris Cooper (Environment Officer) 0417 464 111Adam Noonan (Environmental Officer) 0402 825 885

  • Attachment E

    Environmental Best Practice for Concrete Washout

  • Taken from: Environmental best management practice guideline for concreting contractors DEC, 2004 (p11) http://www.environment.nsw.gov.au/sustainbus/concreters.htm

    http://www.environment.nsw.gov.au/sustainbus/concreters.htm