Duck Irrigation Scheme Mill Creek Dam 08 Environmental ...

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Duck Irrigation Scheme – Mill Creek Dam

Environmental Protection Requirements for Construction August 2016

Tasmanian Irrigation Pty Ltd PO Box 84, Evandale, 7212

Phone: 03 6398 8433| Fax: 03 6398 8441

Email: [email protected] Web: www.tasirrigation.com.au

DUCK: Environmental Protection Requirements for Construction – Mill Creek Dam

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Section 1: Purpose and Scope

Tasmanian Irrigation (TI) is committed to ensuring that all of its construction activities adhere to the highest environmental standards and comply with all environmental permits and approvals.

Consequently, contractors and service providers must be able to demonstrate to TI that the execution of works and the provision of services will be undertaken in a manner that has minimal impact on the natural environment and complies with the relevant legislative requirements, regulations, codes of practice and policies.

This document outlines the environmental protection controls that are required for the design and construction of the following components of the Duck Irrigation Scheme (DUCK):

Mill Creek dam; and the

Supply pipeline.

The Construction Environmental Management Plans (CEMP) and associated sub-plans for the project will be assessed to ensure that the environmental requirements outlined in this document have been addressed appropriately.

Section 2: Guidelines for Works and Services

Contractors and Service Providers shall, as a minimum, comply with the requirements of relevant Commonwealth and Tasmanian Legislation, Regulations, Codes of Practice and Environment Policies. In addition Contractors and Service Providers shall abide by all Ordinances, permit requirements and By Laws designated to protect the environment.

To ensure that TI’s commitment to environmental outcomes are achieved environmental management must be monitored, audited and reported.

Tasmanian Irrigations’ Responsibilities

Tasmanian Irrigation is responsible for sound environmental management practices including:

Ensuring that the Contractor CEMP and associated sub-plans complies with TI’s legislative requirements and Environmental Protection Requirements (EPRs);

Auditing of Contractor compliance with the EPRs and the CEMP. TI must document compliance to an appropriate level to ensure that an external audit by a regulatory authority can be completed;

Reporting any breaches to the relevant government agency; and

Enforcing a compliance process to ensure that environmental requirements are upheld throughout the entire construction period.

Contractor’s Responsibilities

Contractors and Service Providers are responsible for sound environmental management practices including:

Understanding environmental permits and legislation as it relates to their activities and the activities of subcontractors and / or consultants working on their behalf;

Keeping informed about any amendments and changes to environmental legislation;

Ensuring that managers, supervisors, sub-contractors, employees and visitors within their control or influence comply with the projects environmental controls and TI’s environmental objectives;


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Providing support, training and resources to ensure reasonable precautions, due care and diligence are applied to prevent non-compliance;

Developing and monitoring environmental policies, procedures and work instructions;

Reporting on environmental performance both internally and to TI;

Minimising environmental damage in the event of an incident; and

Developing and monitoring a Construction Environmental Management Plan (CEMP).

Construction Environmental Management Plan (CEMP)

The Contractor’s Construction Environmental Management Plan (CEMP) must:

Comply with the environmental protection requirements identified within this document;

Comply with the environmental approvals for the project;

Identify major activities to be performed under this contract;

Identify activities that pose significant environmental risks;

Document how the environmental impacts shall be addressed, managed, avoided or minimised;

Document the environmental legislative responsibilities relating to the Contractors’ and / or Service Providers’ activities;

Outline an appropriate environmental management training program;

Identify the impacts likely to arise from the actions of any subcontractors and consultants; and

Document auditing and reporting procedures including incident reporting.

There are a number of environmental sub-plans that fit under the CEMP. TI expects the following sub-plans to be developed and implemented by the contractor:

1. Mill Creek Dam Erosion Sediment and Control Plan;

2. Construction Water Quality Management Program for Mill Creek Dam;

3. A Rehabilitation and Reinstatement Plan for the Mill Creek dam site;

4. A Weed and Hygiene Management Plan.

Section 3: Protection Aspect Checklist

This section lists environmental aspects applicable to the project. As there is no specific industry

standard for the construction of dams relating to environmental controls, The Australian Pipeline

Industry Association Ltd – Code of Environmental Practice: Onshore Pipelines; May 2013 (APIA Code)

and the Division 3 Permit Dam Works Code 2015 have been used to set the minimum environmental

protection standards. The checklist also identifies project specific environmental controls required

by Tasmanian Irrigation that are additional or different to those outlined within the APIA Code.

The Contractor’s Construction Environmental Management Plan (CEMP) must address the issues

identified in this checklist.


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Protection Aspect Checklist

Sections 1, 3 and 4 of the APIA Code relate to introductions, development and compliance guidelines for environmental management systems and risk evaluation processes. TI requires that these valuable processes be incorporated within the contractor’s environmental management system.

Construction Aspect Relevant

APIA Code Section

Relevant APIA Code

Environmental Guideline

Relevant TI EPG Additional project specific environmental controls or modifications

Regulatory context 2.1 _ _ Contractors and Service Providers must comply with the requirements of the relevant Commonwealth and Tasmanian Legislation, Permits and Approvals, Regulations and Environment Policies.

Current permits expected to apply to the Mill Creek Dam and supply pipeline are:

- EPBC

- Dam Permit (2016009233)

- Forest Practices Plan (supply pipeline)

Any additional permits acquired by the contractor for the project such as waterway and road crossings must be supplied to TI.

Dam site selection and design 5.1 _ 1,4 All changes to the dam site location and design proposed by the contractor must be approved by TI and be consistent with the outcomes of existing environmental approvals.

Stakeholder consultation 5.5 - - The CEMP and associated sub plans must be approved by TI and works must not commence until the CEMP is approved by TI.

The erosion and sediment control plan for the Melrose Dam must be approved by the Water Assessment Branch of DPIPWE prior to works commencing at the site.

Contractors must abide by the construction specifications including those for Stakeholder/Landholder Relationship Management.

In periods of wet conditions, the Contractor must liaise with landowners prior to any vehicular movement across paddocks.



APIA Code Section

Relevant APIA Code



Access to site

6.1 9.1-9.3, 9.6-9.8, 9.10, 9.11, 9.13

_ Construction of site access points to be restricted to a corridor of no more than 6m.

Areas where management prescriptions apply to access tracks are indicated on alignment sheets.

Traffic is to avoid waterways unless approved by TI.

Clearing 6.2 9.1-9.12

1,2,3,4,5 Areas to be cleared must be clearly marked in accordance with a standardised marking system.

Clearance activities for the Mill Creek Dam are to be completed in accordance with the Dam Works Practices Plan and EPBC referral decision.

The clearance of the supply pipeline must be completed in accordance with an approved FPP.

The Mill Creek Dam: Giant Freshwater Lobster Translocation Protocol must be implemented during clearing activities at the Mill Creek Dam site.

The TI Burrow Monitoring and Decommissioning Protocol must be implemented during clearing activities at the Mill Creek Dam site and supply pipeline.

Areas where exclusion zones apply for threatened flora and fauna apply are indicated on alignment sheets. The CEMP must describe the measures to install and monitor exclusion zones.

Grading 6.3 9.1-9.8, 9.13

1,2,3,4,5 The process for determining wet weather non-work periods must be detailed within the CEMP.

Soil that has to be stockpiled must not be transferred across a waterway or placed on the opposite side of a drain or waterway trench by any method that provides potential for the soil to contaminate the drain or waterway.

A rehabilitation and reinstatement plan that minimises the time between grading



APIA Code Section

Relevant APIA Code



and reinstatement must be supplied to TI for approval.

Blasting 6.6 9.2, 9.4, 9.5, 9.7, 9.9-9.11

_

Borrow pits 6.9 9.1, 9.2, 9.5-9.7, 9.10-9.12

3,5 Any material required to be sourced from quarries or borrow pits will need to be of weed-free status.

Any necessary approvals will be obtained and provided to TI prior work commencing at the site.

Construction camps and worksites

6.10 9.1, 9.3, 9.6-9.10, 9.12-9.14

1,3,5

Dam site 6.11 9.1-9.3, 9.6-9.9, 9.14

1,2,3 An erosion sediment control plan for the Mill Creek Dam must be approved by TI and DPIPWE before construction works can commence.

Contractors must develop and implement a Construction Water Quality Monitoring Program (CWMQP) for the Mill Creek Dam site. The CWQMP must comply with the DUCK Construction Water Quality Monitoring Framework and be approved by TI. Works at the dam site shall not commence until the CWQMP is approved.

Water quality monitoring results must be provided to TI on a weekly basis.

Erosion and sediment controls installed during clearing at the Mill Creek Dam site must comply with the Dam Works Practices Plan.

The Mill Creek Dam: Giant Freshwater Lobster Translocation Protocol must be implemented during clearing activities at the Mill Creek Dam site.

Testing and commissioning

6.12 9.2,9.3,9.7-9.9, 9.14

Water sourced for commissioning purposes must be in accordance with relevant water licences.



APIA Code Section

Relevant APIA Code



Reinstatement and rehabilitation

6.13 9.1-9.3, 9.6, 9.7, 9.11-9.13

1,5 A rehabilitation and reinstatement plan for the Mill Creek dam site and areas where clearing has occurred must be submitted to TI for approval.

Contractors must develop and implement a Weed and Hygiene Management Plan (WMP). The WMP must comply with the APIA Code guideline 9.3, DPIPWE (2015) Weed and Disease Planning and Hygiene Guidelines - Preventing the spread of weeds and diseases in Tasmania.

The WMP must also include a weed eradication plan for the construction corridor after the completion of construction.

The WMP must be approved by TI. Works shall not commence until the WMP is approved.

Evidence of compliance with hygiene requirements shall be documented e.g. on a Vehicle Washdown Register.

Disturbance to areas containing identified weed species to be minimised.


Section 4: Environmental Protection Guidelines (EPGs)

This section contains the Environmental Protection Guidelines (EPGs) that specify detailed environmental controls outlined in the previous section. The EPGs incorporate specific environmental protection requirements for this project that have been required to gain approval for the project from regulators. The Contractor’s CEMP must address these issues.

The following Environmental Protection Guidelines are included:

Document No.

EPG 1: Disturbance to Terrestrial and Aquatic Flora and Fauna

EPG 2: Erosion, Sedimentation and Surface Run-off

EPG 3: Aboriginal Artefacts – Unanticipated Discovery Plan

EPG 4: Weed and Hygiene Control

DUCK: Environmental Protection Requirements for Construction

ENVIRONMENTAL PROTECTION GUIDELINE - EPG 1

Disturbance to Terrestrial and Aquatic Flora and Fauna

Objective

To minimise the effects of construction activities on local flora and fauna, particularly any

endangered or protected species or ecological communities.

Target

No negative impacts on flora, fauna or ecological communities in the vicinity of the project

beyond those outlined within planning approvals.

Responsibilities

The Contractor has a responsibility to ensure that the conditions outlined in Tasmanian

Irrigations approvals under Tasmania’s Threatened Species Protection Act 1995 (TSPA) and the

Nature Conservation Act 2002 (NCA), and the Environment Protection and Biodiversity

Conservation Act 1999 (EPBC) are met.

Control Methods

1. General

Areas indicated on alignment sheets as environmentally significant or designated as

Exclusion Zones are to be clearly marked in the construction corridor in accordance with the

standardised marking system outlined within the CEMP.

Areas where significant fauna and flora values exist within the corridor will be walked with

the Superintendent or Principal to ensure that environmental controls are understood.

Ensure all site workers and machine operators are familiar with the conditions of the permits

and environmental aspects of the project at the site induction.

Prior to the commencement of works, the Contractor will arrange a toolbox meeting to be

held with the Principal to outline environmental requirements for the project.

In areas of identified threatened flora, traffic and cartage routes are to be designated and

signed.

Machine operators and other workers must be instructed on the standardised marking

system, limits of clearing, special fauna and flora in the area and the importance of remnant

vegetation patches.


2. Protection of Fauna

No animals are to be deliberately killed. Where possible any injured native animals are to be

transported an animal hospital, vet or refuge. If this is not possible animals are to be dealt

with humanely.

A water quality monitoring program that applies to the construction of the Mill Creek Dam

must be submitted with the CEMP. The water quality monitoring program must be

consistent with the DUCK Construction Water Quality Monitoring Framework.

Giant Freshwater Crayfish

The clearing and construction activities at the Mill Creek Dam site must be completed in

accordance with the Mill Creek Giant Freshwater Crayfish Translocation Protocol.

Tasmanian devil and spotted-tailed quoll

Wombat burrows, logs and other similar holes, may be used by Tasmanian devils or spotted-

tail for dens or refuge. A number of potential dens/refugia are identified within the dam

footprint. Theses burrows must be managed in accordance with the dam permit and

associated Tasmanian Irrigation burrow monitoring and decommissioning protocol.

If further potential dens/refugia are identified during construction these must be avoided. If

avoidance is not practicable the approved Tasmanian Irrigation burrow monitoring and

decommissioning protocol will be implemented.

Wedge-tailed eagle

If a previously unknown wedge-tailed eagle nest is discovered during the breeding season (August – January inclusive) within 500 m of the construction zone, or within 1 km if in line of sight of the nest, all construction activity will immediately cease within this radius. The nest site will be inspected by a suitably qualified specialist, who will provide advice on appropriate further action.

Grey Goshawk

If a previously unknown grey goshawk nest is discovered all construction activity will immediately cease within a 1 kilometre radius of the nest site. The nest site will be inspected by a suitably qualified specialist, who will provide advice on appropriate further action.

Monitoring and Reporting

The Contractor must ensure that fauna and flora controls outlined within the CEMP are

complied with and that compliance is documented. Compliance will be recorded in:

- Daily Site Diary

- Weekly environmental checklists (provided to TI)

- Monthly reports provided to TI compiling the results of the weekly audits.

Numbers of threatened flora that are disturbed or taken within the construction corridor

must be documented by authorised personnel ad provided to TI in a timely manner to

complete permit to take reporting.


The Site Supervisor will at a minimum complete monthly inspections of any key habitat sites

identified as susceptible to disturbance by construction activities.

Emergency Response

In the event that a breach of compliance regarding flora and fauna environmental controls occurs:

The Contractor will immediately notify the Superintendent and the TI Project Manager;

The Contractor will collect evidence at the site and complete an investigation of the incident

to the satisfaction of TI;

The Contractor, on advice from the Superintendent, may be required to engage a suitably

qualified person to determine whether the failure constitutes an ongoing threat to the flora

and fauna in the vicinity; and

Tasmanian Irrigation will liaise with the relevant regulatory authorities regarding the

incident.

Records

The Contractor will keep written records showing:

Compliance with environmental controls outlined in the EPRs and CEMP.

All records and compliance documents must be submitted to TI at the completion of the project.


ENVIRONMENTAL PROTECTION GUIDELINE – EPG 2

Erosion, Sedimentation and Surface Run-off

Background Information

The land within the DUCK project area has a number of distinct topographic regions and related geomorphology which strongly influence the range of soils developed1.

The area generally is characterised by a large frontal coastal plain that extends inland in the west into the Duck River drainage basin. Distal to the coast, rolling hills, escarpments and plateaux rise above the coastal plains to altitudes in the order of 200m above sea level. These features have been, in places, heavily eroded and dissected by the river and creek systems. The geology of the elevated topography in the project area comprises a mixture of Tertiary volcanic rocks and Cambrian igneous and sedimentary rocks. Tertiary volcanic material (for example forming “The Nut”) has weathered to form the majority of the high value agricultural soils in the area. On both sides of the Duck River valley the hills are formed from Cambrian rocks, comprising breccias, lavas and fine mudstone, siltstones and greywackes. The rocks have variably weathered to form productive deep, well structured red soils to stony and shallow to highly compacted clay loams.

Table 2: Erosion Control

Soil erosion Impacts of soil erosion and sediment runoff

Risk to the Project – Low, Medium, High

Primary Control Measure

Raindrop The release of fine sediments and turbid water into waterways can : - adversely affect the health and

biodiversity of aquatic life; - adversely affect fish numbers and fish

breeding; - increase the concentration of

nutrients and metals within permanent waters;

- reduce light penetration into pools - increase the frequency, cost and

damage of de-silting operations - increase rehabilitation costs

High Erosion control

Sheet erosion High Erosion control

Rill erosion High Drainage control

Gully erosion Low Permanent stormwater management

Tunnel erosion High Erosion Control Soil management

Mass movement Low Vegetation and land management

Watercourse erosion Low Permanent stormwater management

Coastal erosion N/A Land use management

Wind erosion Dust generation on construction sites can cause significant problems to neighbouring properties

Medium Erosion control

Watercourse Type

The Duck River is classified as a pebble and gravel based river. The main risk to this watercourse type is coarse sediment and silt entering the watercourse. The result of these incursions would be the smothering of essential bed vegetation, damage to aquatic habitats, causing the conversion of gravel creeks into clay-based creeks and damage to riffle systems.

1 Morton, R.M., (2000). Circular Head Report – Land Capability Survey of Tasmania. DPIPWE, Tas, Aus


Objective

To minimise the potential for erosion within the construction corridor and the avoidance of

sedimentation in waterways, adjoining properties, dams and drains.

Target

Minimal erosion within the construction corridor and dam footprint and no sediment entering the

waterways within the catchments.

Responsibilities

The Contractor is required to submit an erosion and sediment control plan (ESCP) for the Mill Creek Dam.

The ESCP must comply with the APIA Guidelines (2013) and the associated Erosion Sediment Control - A field guide for construction, and prevent coarse sediment and silt entering waterways of Mill Creek and the Duck River.

Clearing activities undertaken at the Mill Creek Dam site must comply with the erosion and sediment controls outlined within the Dam Works Practices Plan.

The Contractor is responsible for the construction and maintenance of the erosion and

sediment control works.

The Contractor is required to regularly assess the need for temporary run-off control.

The Contractor is responsible for cleaning and repairing erosion and sediment control works,

and notifying the Principal of any failures.

The Contractor is required to inspect all erosion controls and sediment control works, and

keep a written record of all inspections and observations and advise on improvements.

The contractor is required to monitor waterways associated with the dam site in accordance

with the Mill Creek Dam Construction Water Quality Monitoring Program.

Control Methods

The environmental management practices are to be in accordance with the APIA Code, relevant

approvals and permits and Australian Standards.

Monitoring

Inspect erosion and sediment control devices weekly (during dry weather) or daily (during

wet weather) to ensure correct functioning and placement and that available capacity is

adequate.

Waterways will be monitored in accordance with the Mill Creek Dam Water Quality

Monitoring Program.

The Contractor must ensure that the erosion and sediment controls outlined within the

CEMP are complied with and that compliance is documented. Compliance will be outlined in:

- Daily Site Diary

- Weekly environmental checklists (provided to TI)



Emergency Response

In the event of any potentially significant failure of the erosion and sediment control devices:

The Contractor will immediately notify the Superintendent and TI Project Manager.

The Contractor is to reinstate the erosion and sediment controls as soon as practicable.

The Contractor is to determine whether the failure constitutes a threat to any adjoining

waterway.

o If it is not considered a threat to waterways, procedures are to be reviewed and the

Superintendent to be advised of, and approve, any alterations or installation of

additional more effective erosion control devices.

o If the failure constitutes a threat to any adjoining waterway, drainage or dam, the

Superintendent is to be notified as soon as practicable and within 24 hours.

Additional and more effective erosion control devices to be installed as soon

as practicable.

Any instructions provided by the Superintendent must be implemented as

soon as practicable.

Records

Written records must be kept showing:

The date and reason for each inspection.

Details and the condition of the erosion and sediment control works at each inspection.

Details of any erosion of sedimentation sighted during each inspection

The date and time of any notification of any failure of the erosion and sediment control

works.

Copies of records are to be provided to TI at the completion of the project.



Aboriginal Artefacts – Unanticipated Discovery Plan

Objective

To protect Aboriginal cultural heritage values, both artefacts and landscape values, that may be

encountered during construction.

Target

Minimal impact on any Aboriginal cultural heritage values along the construction corridors.

Responsibilities

The Contractor is responsible for the protection (or actioning of permits) of any existing

identified Aboriginal cultural heritage values identified along the corridors in accordance with

the permit directions. Aboriginal Cultural Heritage Values for which specific management

requirements are required and permit conditions apply are identified on the alignment sheets.

In the event of any unanticipated discovery of Aboriginal cultural heritage material, the

Contractor is responsible for undertaking the actions required, as outlined in the Unanticipated

Discovery Response below.

Control Methods

The environmental management practices are to be in accordance with the APIA Code

Environmental Guideline 9.5 and the Unanticipated Discovery Response within this EPG.

The following control measures are to be established during the whole construction period. They are to be fully operational and provide effective protection prior to disturbing adjacent ground and the commencement of adjacent excavation.

Unless otherwise specified in an Aboriginal Heritage Permit, all the identified sites are to be

protected with appropriate buffer zones and protection fencing, in accordance with the

directions of an archaeologist.

Buffer zones and protection fencing are to remain in place until completion of all

construction activities at the site.

Unanticipated Discovery Response

In the event that any unanticipated discoveries of Aboriginal cultural heritage materials are made

during the construction period, the following processes are to be followed so that the requirements

of the Aboriginal Relics Act 1975 and the Coroners Act 1995 are met.


Discovery of Cultural Heritage Items

If any project personnel, contractors or subcontractors believe that they have discovered or

uncovered Aboriginal cultural heritage materials, the individual must notify machinery

operators that are working in the general vicinity of the area that earth disturbance works

must stop immediately.

Immediately notify the Superintendent and TI Project Manager.

A buffer protection zone of 10m x 10m is to be established around the suspected cultural

heritage site or items.

No unauthorised entry or earth disturbance must be allowed within this ‘archaeological

zone’ until such time as the suspected cultural heritage items have been assessed, and

appropriate mitigation measures carried out.

Where required, cooperate with management instructions applied relating to site

preservation in accordance with the Aboriginal Relics Act 1975.

Discovery of Skeletal Material

Unless obviously the remains of a common animal (e.g. brush tail possum, sheep), under no

circumstances are the suspected skeletal remains be touched or disturbed. If these are

human remains, then this area potentially is a crime scene. Tampering with a crime scene is

a criminal offence.

Any person discovering suspected skeletal remains must notify machinery operators that are

working in the general vicinity of the area that earth disturbing works must stop

immediately.

A buffer protection zone of 50m x 50m should be established around the suspected skeletal

remains and the Superintendent and TI Project Manager is to be notified immediately.

No unauthorised entry or earth disturbance must be allowed in this buffer zone until such

time as the suspected skeletal remains have been assessed.

If it is suspected that the remains may be human, then the relevant authorities (police) must

be contacted immediately and informed of the discovery.

Where required, cooperate with management instructions applied relating to site

preservation in accordance with the Aboriginal Relics Act 1975.

Records

Written records are to be kept showing:

The date of any unanticipated discovery.

Details of the actions taken.

The date and details of responses from the relevant authorities regarding any unanticipated

discovery.


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Weed and Hygiene Control

Objectives

To minimise the transfer of weeds, infectious plant and animal diseases and fungal infestation

within and between sites.

Targets

No spread of weeds, infectious plant or animal disease and fungal infestation within the site or

from one site to another or to adjoining land.

No importation of infectious plant or animal diseases from another geographic region.

Responsibilities

The Contractor is responsible for:

Identifying legislative infectious plant control regulations.

Inspecting the site on a regular basis.

Inspection of all machines prior to transport on to the site.

Notification of any breaches.

Undertaking monitoring activities.

Development of a Weed and Hygiene Management Plan.

General Requirements

The Contractor to provide suitable qualified personnel to assess constructions sites for the

presence of infectious plant, diseases and weeds.

Chytrid disease is present in the adjacent Montague catchment and other areas of Tasmania. All

machinery arriving at the site will be washed down with Phytoclean or trigene to prevent the

spread of the disease to the dam site.

Mill Creek Dam site One plant species listed as a Declared Weed on the Tasmanian Weed Management Act 1999 or as a Weed of National Significance on the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 was recorded in the dam works footprint. • Rubus fruticosus, blackberry

Control Methods

The Contractor must ensure that all imported topsoil, crushed rock or gravel and organic revegetation matting is certified to be weed and disease free by the supplier prior to being brought to site. Any necessary approvals will be obtained and provided to TI prior work commencing at the site.


A declared weed eradication programme will be implemented throughout the construction corridor within 12 months of construction completion, with treatments timed in accordance with species-specific prescriptions

The Contractor must submit a Weed and Hygiene Management Plan (WHMP) to TI for approval prior to commencing works within the construction corridor. The WMP must comply with the APIA Code Environmental Guideline 9.3, and DPIPWE (2015) Weed and Disease Planning and Hygiene Guidelines - Preventing the spread of weeds and diseases in Tasmania.

As a minimum the WHMP plan must define:

Vehicle washdown procedures for and locations along the pipeline routes.

Vehicle hygiene washdown procedures for arriving at site.

Weed species within the construction corridor to be identified and treatment methods

outlined. Declared weeds must be treated in accordance with guidelines and regulations.

The types of cleaning to be used ie. washdown with high-pressure water containing

disinfectant or application of other cleaning solutions.

Stockpile locations for affected soils.

A weed eradication programme for declared weeds that appear in the corridor upon the

completion of rehabilitation.

Monitoring and Reporting

Fortnightly monitoring of plant and materials, and location of stockpiles.

Weekly observance of compliance with infectious plant disease controls.

Spot inspection of plant exiting the operation prescription areas to ensure the

effectiveness of control measures including wash downs.

Follow‐up monitoring to be undertaken post installation and post rehabilitation for weed

identification and appropriate additional control, as disturbance from construction works

along the pipeline route is likely to stimulate germination of a range of weed species.

The Contractor must ensure that the weed and hygiene environmental controls outlined

within the CEMP are complied with and that compliance is documented. Compliance will

be outlined in:

- Daily Site Diary

- Weekly environmental checklist (supplied to TI)


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