Goulburn River Diversion Erosion and Sediment Control Plan€¦ · Plan for Goulburn River...

Plan for

Goulburn River Diversion Erosion and Sediment Control Plan

Document Number: ULN SD PLN 0130

Status: Approved

Version: 1.0

Effective: 31/05/2017

Review: 3 Years

Owner: Environment and Community Manager

Typical drawing for proposed rehabilitation works at Chainages 1389 and 1589.respectively.

Ulan Complex

Plan Goulburn River Diversion Erosion and Sediment

Control Plan

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TABLE OF CONTENTS

Plan for ...................................................................................................................................... 1

1 Introduction ...................................................................................................................... 5

1.1 Background. ................................................................................................................................. 5

1.2 Purpose and objectives of this document. ..................................................................................... 5

1.3 Relevant guidelines. ..................................................................................................................... 8

1.4 Relevant legislation. ...................................................................................................................... 9

2 Environmental Assessment .......................................................................................... 10

2.1 Site description and scope of works. ........................................................................................... 10

2.2 Existing environment................................................................................................................... 13

2.3 Soils and geology. ...................................................................................................................... 14

2.3.1 Existing soils. ...................................................................................................................... 14 2.3.2 Soil analysis. ....................................................................................................................... 15

2.4 Erosion and sediment control risk assessment. ........................................................................... 15

3 Erosion and Sediment Control Management Actions ................................................. 19

3.1 Surface water management. ....................................................................................................... 19

3.1.1 Control of overland flow. ..................................................................................................... 19 3.1.2 Drop structures. .................................................................................................................. 19 3.1.3 Rock revetment walls. ......................................................................................................... 22 3.1.4 Rock specifications. ............................................................................................................ 22 3.1.5 Batter re-profiling ................................................................................................................ 23 3.1.6 Mid slope protection. ........................................................................................................... 23 3.1.7 Channel crossing. ............................................................................................................... 23

3.2 Soil management ........................................................................................................................ 23

3.2.1 Soil management recommendations. .................................................................................. 23 3.2.2 Substrate management. ...................................................................................................... 24 3.2.3 Soil stripping, handling and stockpiling. ............................................................................... 25 3.2.4 Soil respreading and seedbed preparation. ......................................................................... 25

3.3 Hydrocarbon spills. ..................................................................................................................... 25

3.4 Wet weather contingency. ........................................................................................................... 26

4 Revegetation. .................................................................................................................. 29

4.1 Groundcover requirements. ........................................................................................................ 29

4.2 Tree and shrub seed collection and propagation. ........................................................................ 30

4.3 Pasture seeding. ......................................................................................................................... 32

4.4 Imported topsoil or soil conditioner. ............................................................................................. 33

4.5 Compost blanket. ........................................................................................................................ 34

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5 Schedule of Works ......................................................................................................... 35

6 Training and Awareness ................................................................................................ 35

7 Monitoring ....................................................................................................................... 36

8 Responsibilities .............................................................................................................. 36

9 Control and Revision history......................................................................................... 38

9.1 Revisions .................................................................................................................................... 38

TABLE OF FIGURES

Figure 1: Location of Ulan Coal Mine and Goulburn River Diversion. .................................................... 7

Figure 2: Spatial distribution of GRD remediation areas and works. ..................................................... 11

Figure 3: Gulgong mean monthly rainfall vs mean monthly rain days. .................................................. 13

Figure 4: General arrangements for surface water controls. ........................................................................ 21

Figure 5: Typical design for the placement of rock for treatment of bank erosion.................................. 22

Figure 6: Distribution of soil sample sites on the Goulburn River Diversion ......................................... 24

Figure 7: C-factor for grass cover. .............................................................................................................. 30

Figure 8: Typical Zonal Planting cross section .......................................................................................... 31

LIST OF TABLES

Table 1: Structure and key provisions of the various GRD Plans .............................................................. 8

Table 2: Summary of works and indicative timing. ................................................................................. 11

Table 3: Goulburn River Diversion Erosion and Sediment Control Risk Assessment.Error! Bookmark

not defined.15

Table 4: Wet Weather Trigger Action Response Plan (TARP) ................................................................. 26

Table 5: Maximum acceptable C-factors at nominated times during works. ......................................... 29

Table 6: Indicative Species List .................................................................................................................. 32

Table 7: Indicative cover crop species list. ................................................................................................ 33

LIST OF ATTACHMENTS

Attachment A: Goulburn River Diversion soils inventory

Attachment B: General arrangements for surface water controls.

Attachment C: Rock chute and overland drain details

Attachment D: Resizing of rock chutes for the GRD.

Attachment E (1): Modelling of GRD toe protection options.

Attachment E (2): Rock revetment typical details.

Attachment F: Mid slope batter protection typical drawing.

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Attachment G: Fish passage requirements for waterway crossings.

Attachment H (1): Characteristics of common compost blankets.

Attachment H (2): Soil Stabilisation Control Matrix.

*Attachment I: Upstream drain drawings.

*Attachment J Amended General arrangements for surface water controls

*Attachment K Erosion and Sediment Control Plan for the GRDR Areas 1, 2, 4, 5 and 6

*Attachment L Erosion and Sediment Control drawings Areas 1, 2, 4, 5 and 6

*Attachment M Goulburn River Diversion Rehabilitation Works Eco Logical August 2014

*Note; updated appendixes for the revised plan

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1 Introduction

1.1 Background. The construction of the Goulburn River Diversion (GRD) was undertaken in accordance with a 1981

development consent associated with the commencement of open cut operations.

The GRD (referred to as the river) is 4.2 kms in length. It originates adjacent to the Bypass ROM

stockpile area and runs east for approximately 1,600 metres. It then swings north and runs parallel to

the Ulan Road for almost another 2,400m before ending slightly upstream of the Mark Patrick Dwyer

Bridge at the entrance to the Ulan mine complex.

Figure 1 shows the general location of the subject river reach. Figure 2 at Section 2.1 provides a spatial

distribution of works.

Bank heights of the river can be up to 20 meters deep at its highest point however most bank heights are

closer to 10 meters deep. The river itself is largely ephemeral and the average 5 year ARI has a depth of

flow of 3.2m to 3.7m1.

In November 2011, the Minister for Planning issued Project Approval (PA 08_0184) under Section 75J of

the Environment Planning and Assessment Act 1979. This approval required UCML to submit a

Goulburn River Diversion Remediation Plan (GRDRP).

An initial Remediation Plan was submitted in 2011 however was later withdrawn due the excessive

amounts of disturbance required to construct the works. The final GRDRP was approved in December

2013.

1.2 Purpose and objectives of this document. This Erosion and Sediment Control Plan (ESCP) for the Goulburn River Diversion;

Addresses the relevant conditions associated with Project Approval (PA 08_0184);

be consistent with the requirements of the Managing Urban Stormwater: Soils and

Construction Manual (Landcom 2004, or its latest version. Referred to as “the Blue Book”);

identify activities that could cause soil erosion and generate sediment;

describe measures to minimise soil erosion and the potential for the transport of sediment

to downstream waters;

describe the location, function and capacity of erosion and sediment control structures; and

describe what measures would be implemented to maintain the structures over time.

Addresses the Department of Planning and Infrastructure submission to the draft GRDRP;

1 Goulburn River Diversion- Long Term Stability Strategy, URS 2009.

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“The Department requires that the overarching ESCP for the diversion is prepared to the

satisfaction of the Directors General and approved prior to the implementation of the remedial

works.”

Complies with Glencore’s commitment to ESD principles;

Provides a link between the approved GRDRP and the site specific Ground Disturbance Permits

which also contain ESCP provisions. Table 1 provides the content of each document.

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Figure 1: Location of Ulan Coal Mine and Goulburn River Diversion.

General

locality of

Goulburn

River

Diversion.

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Document Key Features

Goulburn River Diversion

Remediation Plan.

Developed in consultation with key agencies and stakeholders;

Required by Project Approval 08_0814;

Provides a summary of the key studies and investigations undertaken in

the development of the GRDRP;

Identifies the organisational risks of the project and their control

measures;

Provides agency agreed GRDRP project closure criteria;

Provides for regulatory approval of the projects implementation;


Erosion and Sediment

Control Plan.

Developed in consultation with engineering and environmental

technical expertise;

Provides guidance to Glencore’s standards in regard to erosion and

sediment control (ESC);

Identifies the operational risks, and control measures, specific to the key

GRDRP risk of ESC;

Provides a link between the strategic nature of the GRDRP and the

operational function of project execution;


Ground Disturbance

Permit.

In terms of ESC provisions, requires;

a map (to scale) of the site including topographical and other natural

and man-made features;

information on soil type and compaction requirements;

rehabilitation requirements;

information on ground cover;

construction diagrams for erosion and sediment control features;

hydrocarbon control measures as a result of the use of earthmoving

equipment within and adjacent to the diversion;

design calculations for erosion and sediment control measures;

an activity schedule (to show implementation of erosion and sediment

control features prior to commencement, and throughout the duration of

works);

Table 1: Structure and key provisions of the various GRD Plans

1.3 Relevant guidelines. Documents within the UCML Environmental Management System that relate to, or provide support to this

ESCP include:

Water Management Plan (WMP) (ULN SD PLN 0017);

Goulburn River Diversion Remediation Program (GRDRP) (ULN SD PLN 0054)

Surface Water Monitoring Program (SWMP) (ULN SD PLN 0055);

Groundwater Monitoring Program (GWMP) (ULN SD PLN 0056);

Surface Water and Groundwater Response Plan (SWGWRP) (ULN SD PLN 0057);

Integrated Mining Operations Plan 2010 to 2017 (MOP);

Environmental inspections detailed in UCML’s Environmental Management Strategy (EMS) (ULN SD

PLN 0050); and

Biodiversity, Rehabilitation and Offset Management Plan (BROMP) (ULN SD EXT 0093).

This ESCP has also been developed in accordance with the relevant Glencore Coal Assets Australia

policies and standards outlined in the EMS (ULN SD PLN 0050) including:

o Risk and Change Management (XCN SD GDL 0005) - Section 2 of EMS;

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o Ground Disturbance Permit (XCN SD FRM 8.4.0) – Section 3 of EMS;

o Environment, Biodiversity and Landscape Functions (XCN SD GDL 0010) – Section 3 of

EMS;

o Licences and Approvals Annexure (XCN SD ANN 0012) – Section 3 of EMS;

o Sustainable Development (SD) Measurement and Reporting Annexure (XCN SD ANN 0050)

– Section 3 of EMS; and

o Monitoring and Review (XCN SD GDL 0016) – Section 4 of EMS.

1.4 Relevant legislation. UCML will undertake erosion and sediment control in accordance with the policies, principles, regulations

and guidelines contained within:

Protection of the Environment Operations Act 1997 (POEO Act) administered by the Office of Environment

and Heritage (OEH) (formerly the NSW Department of Environment, Climate Change and Water

(DECCW));

Water Management Act 2000, administered by Department of Trade and Investment, Regional

Infrastructure and Services (DTIRIS) (formerly I&I NSW);

Water Act 1912, administered by DTIRIS;

Environmental Planning and Assessment Act 1979 (EP&A Act), administered by DP&I;

Managing Urban Stormwater – Soils and Construction, Volume 1 (the Blue Book) (Landcom, 2004);

Managing Urban Stormwater – Soils and Construction, Volume 2A Installation of services (Department

of Environment and Climate Change, 2008);

Managing Urban Stormwater – Soils and Construction, Volume 2C Unsealed Roads (DECC, 2008);

Managing Urban Stormwater – Soils and Construction, Volume 2D Main Road Construction (DECC,

2008);

Managing Urban Stormwater – Soils and Construction, Volume 2E Mines and Quarries (DECC, 2008);

National Water Quality Management Strategy: Australian Freshwater Guidelines for Fresh and Marine

Water Quality (ANZECC, 2000); and

Fish Friendly Waterway Crossings (NSW Fisheries, undated).

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2 Environmental Assessment

2.1 Site description and scope of works. Much of the final design is based on initial investigations commissioned by UCML over the past 8 years. The

key studies have been;

1. Goulburn River Diversion - Long Term Stability Strategy, URS, 2009;

2. Goulburn River Diversion Revegetation Plan, Hunter Land Management, 2009 and Goulburn River

Diversion Rehabilitation Works Eco Logical August 2014

3. Review of proposed riverworks along Goulburn River Diversion through Ulan Coal Mine, Soil

Conservation Service, 2012.

4. Completion of Pilot Area and Area 3B

The GRDRP delineates the river into six remediation “areas” which are primarily based on catchments,

geology, degree and causes of erosion and recommended works.

Figure 2 shows the spatial distribution of recommended works while Table 2 details the preferred options,

and timing, for the areas of the Goulburn River Diversion.

These areas are from Ch 0 upstream to Ch 4200. Bank references are defined by left hand side (LHS) and

right hand side (RHS) when facing downstream.

The works include a “Pilot area” which was chosen to be representative of the broader project works and

allows all design options to be trialled before commencement of broad scale operations. The Pilot concept

was of strategic importance to the successful implementation of the Plan which has allowed UCML to:

• test all construction methodologies to be applied elsewhere on the project;

• test all ESC techniques to be applied elsewhere on the project;

• test rehabilitation/revegetation methodologies;

• observe operator capability; and

• trial closure criteria.

The Pilot area is used to illustrate the application of the key principles.

The Bobadeen Quarry is developed as part of the project, the Quarry has a separate approved Erosion and

Sediment Control Plan.

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Figure 2: Spatial distribution of GRD remediation areas and works.

Table 2: Summary of works and indicative timing.

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Area Location Proposed Remediation Works Timing

Civil Works

Area 3(a)

PILOT AREA 1000 – 1840 LHS

Construction of necessary access tracks,

compound and pads.

Rock toe protection, batter reshaping, surface

water managed via the construction of upstream

drainage channels and drop structures.

Completed

2014

Area 3(b)

1000 – 1840 LHS

Construction of necessary access tracks,

compound and pads.




Completed

2016

Area 1

0 to 1000 RHS &

LHS

Batter shaping. Disturbed soils treated with

ameliorants, soil conditioner and protective

cover.

Area 2 1000 – 1840 LHS Rock toe protection, batter reshaping, surface



Q2 to Q4

2017

Q1 2018

Area 4 Ch 1840 – 2850

RHS&LHS

Exposed areas reshaped and dressed. Surface



Area 5 Ch 2840 = 3540

RHS&LHS



drainage channels and drop structures to suit.

Area 6 Ch 3540 -4200

RHS&LHS Rock toe protection where required

Tree / shrub establishment

Pilot Area 1000 – 1840 RHS

Revegetation of channel batter where possible and

surrounding riparian land.

Complete

Areas 2, 4, 5 & 6. Remainder.

Q1 to Q4

2017

Q1 & Q2

2018

All areas Review and repair as required

Q1 to Q4

2018

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2.2 Existing environment. The Bureau of Meteorology data2 indicates that for the period from 1881 to 2013, the average annual rainfall

for Gulgong was 652 mm.

Figure 3 below shows that the rainfall distribution is summer dominant with less rain days, indicating that

the intensities are also higher in summer.

Murphy & Lawrie (1998)3 have identified the rainfall erositivity as low (1000-1500mm/ha/year), however

erosion may still occur where natural sheet runoff is converted to concentrated flows over bare soils that are

disturbed during construction.

Figure 3: Gulgong mean monthly rainfall vs mean monthly rain days

Figure 4 shows the daily flows in megalitres at Ulan gauging station SW01 (approximately 1 km upstream of

the GRD) for the period August 2008 to December 2010.

Although this is a limited data set (as flow volume data is no longer collected at SW01 due to changes in the

river profile as a result of the 2010/11 high rainfall event) it does support the conclusion that runoff flows are

2 http://www.bom.gov.au/jsp/ncc/cdio/weather/data/au. 3 Soils and Construction, Managing Urban Stormwater. (“the Blue Book”) Department of Environment and Climate Change, 2004.

0

1

2

3

4

5

6

7

8

0

10

20

30

40

50

60

70

80

Rai

n d

ays

Rai

nfa

ll (m

m)

Month

Rain Days.

Rainfall.

http://www.bom.gov.au/jsp/ncc/cdio/weather/data/au

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more likely to occur in the spring and summer months. Contingencies for this seasonal nature of rainfall and

flow are discussed in Section 3.4.

Figure 4: Seasonal influence of flow and SW01 (upstream of GRD)

2.3 Soils and geology.

2.3.1 Existing soils. Geotechnical investigations4 were carried out to characterise and assess the properties of the river bank

material and identified two main geological units, being:

Saprolite (highly weathered bedrock) – forms the underlying unit and breaks down to soils comprised of

sandy clays and clayey sands with some gravelly sands with clay; and

Bedrock – forms the underlying unit below the saprolite and is hard and durable, mainly consisting of

mudstone and carbonaceous material.

Erosion is evident throughout the river reach in the form of rills and gullies running vertically down the

river bank slope. Several locations show evidence of deep scouring in the slope face. Erosion within the

dispersive saprolite unit is generally caused by the chemical nature of the soils, physically weathering in the

4 Goulburn River Diversion-Long Term Stability Strategy, URS 2008

Flo

w M

l/d

ay

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form of raindrop impact on the exposed slopes and overland flow. The bedrock unit is resistant to erosion

from overland flow, showing only minor evidence of rockfall accumulations.

Detailed survey advice has indicated that when the river batter slopes are 1:2.7 (V: H) or better, the batters

appears to be stable and capable of maintaining suitable levels of vegetation.

2.3.2 Soil analysis. To further understand the soil chemistry that may be contributing to the existing erosion risk, UCML

commissioned an investigation5 to develop a soils inventory that;

advised on the nature of the soils present, mapped their location and provided advice on their erosion

risk

advised on rates and methodology for the application of the ameliorants that may be required;

advised on the nature of any soil limitations that may impact on their suitability to sustain resilient

vegetation growth; and,

advised on the risks that exist in terms of inadvertently exposing undesirable material during

construction.

A total of 25 pits were excavated and 38 samples collected and tested for the following parameters;

Physical properties.

Particle Size Analysis.

Chemical properties.

Cation Exchange Capacity (CEC);

Acidity/alkalinity (ph);

Salinity (EC);

Total phosphorus;

Emerson Aggregate Test (EAT);

Organic Carbon.

Recommendations regarding the management of the soils in situ are contained in Section 3.2. The Soils

Inventory report is provided at Attachment A.

Detailed soil analysis to be conducted for each area of work.

2.4 Erosion and sediment control risk assessment.

The following section provides an overview of the existing environmental considerations that will impact on

ESC in the river reach.

Issues have been identified either in agency responses to the GRDRP or in internal risk assessments and peer

reviews of the GRDRP.

5 Goulburn River Diversion-Soils Inventory, SLR Environmental Solutions. 2013

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Table 3: Goulburn River Diversion Erosion and Sediment Control Risk Assessment

Source Comment Section of report where

addressed.

1 Department of Planning and

Infrastructure correspondence to

draft GRDRP, August 2013.

Supports UCML’s intention to prepare an Erosion & Sediment Control Plan (ESCP) specific to the

Goulburn River Diversion remediation areas and requires that the ESCP be approved by the

Director General prior to the implementation of remedial works.

This document.

2 Environment Protection Authority

correspondence to draft GRDRP,

August 2013.

Erosion and sediment control is identified as a primary risk, both during and post construction.

Supports the use of a pilot area to trial implementation of control measures and requests

inspection of the pilot area by relevant agencies prior to the commencement or implementation of

the remainder of remediation areas.

This document.

36 Requests clear definition of monitoring, incident response and wet weather contingency

procedures.

Section 3.3, 3.4 & 7.

4 NSW Office of Water correspondence

to draft GRDRP, August 2013.

Identifies risk of ongoing erosion and slope destabilisation to batters as a result of sodic and

dispersive subsoils.

Section 3.2.

5 Identifies risk of erosion at drainage discharge points from Ulan Road table drains and

uncontrolled overland flow.

Section 3.1.

6 Identifies the need for soil conditioners and ameliorants on batter slopes to assist with

revegetation.

Section 3.2.

7 Internal Broad Brush Risk Identifies the need to be prepared for the risk of a hydrocarbon incident. Section 3.3.

6 Issues 3, 4, 5 & 6 were also identified in Ulan Peer Review and Risk Assessments and have not been repeated later in this table.

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6 Assessment, May 2013. Revegetation timing and species selection is essential to mitigate the causes of failure in

vegetation establishment.

Section 4.

9 Monitor works to ensure that erosion protection installed at a specified area does not

inadvertently cause a redirection of flow and hence cause erosion in another area.

Section 7.

10 Investigate the possibility of irrigation of rehabilitation areas in terms of volume, quality,

infrastructure and maintenance.

Section 3.3 & 3.4

11 Geotechnical assessment is required to mitigate the possibility of accelerated weathering rates of

the rock used for erosion protection.

Section 3.1.4.

12 Internal ESCP Peer Review

Workshop, December 2013.

Rock revetment wall needs to be designed with a berm at the outer edge of its platform so as to

act as a catch (filter) for sediment moving down toward the river channel floor from the batters

during construction.

Section 3.1.3.

13 Investigate the use of a floating boom to trap hydrocarbon spills. Section 3.3.

14 Install rock check barricades in catchment drains to slow flow. Section 3.1.1.

15 Limit the amount of area exposed at any particular time and install compost blanket as soon as

possible after reshaping of batters. Required to provide compliance with the C-factor

requirements of the “Blue Book.”

Section 4.

16 Compact reshaped batters both before and after topsoil application by track walking with dozers

up and down batter.

Section 3.2.5.

17 Use geofabric between rock revetment and river bank (up to ~1.5m height) to minimise sediment

transfer from banks though rocks.

Section 3.1.4.

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3 Erosion and Sediment Control Management Actions

3.1 Surface water management.

3.1.1 Control of overland flow. Poor drainage from Ulan Road and concentrated surface water flows are considered major contributors to severe

rill and gully erosion within the river reach. To mitigate this risk, an integrated surface water drainage plan has

been developed using standard erosion and sediment control techniques7. Works will be constructed to the 100

year ARI in accordance with Glencore ESCP standards8.

The proposed surface water plan will comprise the following components:

Implementation of surface water control drains (also referred to as catchment or diversion drains) to capture

sheet flow and direct it away from the river bank slope into formed discharge points (also referred to as rock

chutes or drop structures).

The catchment drains will be within 10 metres from the top of the final river bank and typically 400 to mm

minimum depth with a minimum grade of 1%. Depending on the location and characterisation of soil material,

the drains may be required to be stabilised with either grass or a rock-lining to minimise erosion9.

To reduce the erosion potential in the culverts beside Ulan Road, rock lined channels will be constructed to

convey the flow of water to constructed discharge points along the river.

Appropriately designed discharge locations (See Section 3.1.2) will be constructed to receive upstream flows

and convey them in a controlled manner to the river channel bed, thereby reducing erosion and scour of bank

slopes.

Figure 4 provides an overview of the general arrangements for the proposed drainage works. Attachment B provides this information in greater detail. Attachment C provides typical drawings and design dimensions for the

drop structures and catchment drains.

3.1.2 Drop structures. Rock lined catchment drains are only suitable where the longitudinal gradient is at 1V:20H (5%) or less.

For steeper drains down the river bank slope, the combination of flow and gravity forces requires the construction

of engineered rock chute drop structures to convey flows from the upstream catchment drainage system into the

bed of the river. The dimensions of the rock chute drop structures depend on peak flows, slope of the chute, height

of the chute, and grading (size) of the rock and are provided in typical design drawings in Attachment C. The full

report for the rock sizing is provided in Attachment D10.

7 Managing Urban Stormwater: Soils and Construction Volume 1 (Landcom, 2004) and Volume 2D (DECC, 2008) (the Blue Book) 8 Erosion and Sediment Control Plan (ULN SD PLN 0025), Umwelt Environmental Consultants July 2011. 9 URS design specifications. See Attachment C. 10 Resizing of Rock Chutes for the GRD (updated calculations), URS, October 2013

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Drop structures will be constructed following the completion of the underlying revetment platform. This allows

spoil material to be removed via the access ramps and runoff from the disturbance can be controlled and managed

by construction of a berm on the revetment base. See Section 3.1.3. A typical drawing of a dropstructure is

provided in Attachment C.

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Figure 4: General arrangements for surface water controls.

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3.1.3 Rock revetment walls. Rock will be used to construct the revetment base and walls. The material will be sized in accordance with the

results of the 100 year ARI flood hydraulic modelling (see Section 3.1.4) and will be a well-graded mixture

composed primarily of the larger rock sizes but with a sufficient mixture of other sizes to fill the progressively

smaller voids between the rocks.

The rock material must be placed in such a sequence so as to enable continued placement of rock on

the river bed by mechanical plant located at all times on a working platform/access track above the

river bed.

Rock is to be placed to design typically 500mm above the current stream bed and allow 4 metres

trafficable width. This will mitigate risk of disturbance to the channel floor.

Figure 5 provides a typical design for the application of rock armour. Typical drawings are provided at

Attachment E (2).

Figure 5: Typical design for the placement of rock for treatment of bank erosion

3.1.4 Rock specifications. The results of the hydraulic modelling undertaken by URS Australia were used to calculate the required rock

sizing suitable for the conditions along the river channel11. See Attachments E (1). Generally it is recommended

that a standard minimum medium diameter size (d5012) of 0.2 m be used. A relatively small number of locations

currently display isolated high velocities. At these locations larger rock is required with d50 sizes of 0.2 m to 0.5 m.

The material used for rock armour will be hard, angular and of such quality that it will not disintegrate on

exposure to water or weathering. It will be chemically stable, capable of withstanding freezing and thawing and

suitable in other respects for the intended use. It will meet the relevant Australian Standards13 in terms of a wet dry

crushing variation of not more that 35%, an aggregate crushing strength of 25 megapascals (mPa) or more and a

dry density of at least 2.1 tonnes/m3.

11 Modelling of GRD toe protection options. URS 2013 12 For a D50 the following parameters exist; The D50 is the median size of the rock. 50% of the rock should be graded at double the median size.

40% of the rock should be graded at 40% of the mediam and the final 10% of rock may be smaller to fill the voids. 13 AS4133 3.4 Slake Durability Index , AS1141.22 Wet Dry Strength Variation, AS4133 2.1.1 Dry Density,

Strength (“Aggregate Crushing Strength”).

Ulan Complex Plan Goulburn River Diversion Erosion and Sediment Control Plan

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3.1.5 Batter re-profiling

Batter areas will be subdivided into approximately 100 m lengths to minimise the disturbed area exposed to

erosion at any particular time. In line with the projects philosophy of minimal disturbance, existing vegetation will

be retained to minimise disturbance.

Field observations indicate that where the existing batter is 1(V):2.7(H), reasonable vegetation cover has been

sustained. The batters will therefore be regraded to 1(V): 2.7(H) as a minimum and 1:3 where possible.

The lager erosion gullies on the batters may be shaped into storage basins and/or lined with rock to compliment

the mid slope drainage (Section 3.1.6).

3.1.6 Mid slope protection. Section 3.1.1 outlines how erosion on the river batters will be mitigated by the control of overland flows. The

length of the reshaped batter may also be up to 35m in length with a slope of 1:3 (V: H). This can provide a risk to

erosion whilst revegetation processes takes place. This risk will be mitigated by providing “mid slope” drainage to

secure rock drop structures. The mid slope drainage will likely be in the form of a compost filled “sock” to act as a

berm on the mid slope bench. The berm will be removed when vegetation cover is sustained. A typical drawing is

provided in Attachment F.

3.1.7 Channel crossing. UCML notes the policy advice provided by NSW Fisheries during the consultation process on fish friendly channel

crossings. See Attachment G. Specifically this advice suggests;

• Avoid crossing waterways at or near sharp bends, sections of unstable channel, or major "riffle" systems;

• Avoid locating crossings over "meandering" waterways;

• Avoid works that may change the frequency or spacing of an existing pool –riffle system;

• Avoid disturbances that represent a unique, endangered or highly valued section of the waterway;

3.2 Soil management14

3.2.1 Soil management recommendations. Sites 1, 2, 3, 20 and 22 (Refer to Figure 6) occur in topsoil stockpiles. Samples from these sites recorded low salinity

and sodicity levels but slight to moderate acidity. Soils from these stockpile areas will require lime at application

rates of up to 5 tonnes/ha. Lime should be applied and incorporated immediately after soil respreading and prior

to seeding. These soils will also benefit from organic amendment.

The majority of subsoil samples exhibit elevated exchangeable Na levels leading to sodicity or dispersiveness. Four

random soil samples were tested for gypsum rate requirements. The testing revealed that minimum gypsum

application rates are in the order of 5.0 and 7.5 tonnes/ha.

The addition of organic amendments (see Section 4.4) will also greatly assists in the amelioration of sodic soils.

Weak soil structure can be effectively managed by the addition of organic matter which increases soil aggregate

stability. The routine use of cover crops (for example, oats in autumn/winter and Japanese millet in

spring/summer) and the strategic use of specialist revegetation techniques such as hydroseeding with sugar cane

mulch will significantly assist with organic amendment of poorly structured sodic soils encountered in the area.

14 Unless identified otherwise, the recommendations are derived from “Goulburn River Diversion Soils Inventory” SLR, 2013.


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3.2.2 Substrate management. Many of the subsoil samples exhibit characteristics that will prohibit successful vegetation establishment, including

high salinity, sodicity and acidity or alkalinity.

Techniques such as increasing the depth of benign soil topdressing, subsoil amelioration and/or the use of salt

tolerant pasture species are recommended.

Figure 6 identifies the soil sample locations. Attachment A “Goulburn River Diversion Soils Inventory” by SLR

Global Environmental Solutions, provides full details of the soils analysis and maps of locations requiring lime

and/or specific substrate management.

Figure 6: Distribution of soil sample sites on the Goulburn River Diversion


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3.2.3 Soil stripping, handling and stockpiling.

The following topsoil handling techniques are recommended to prevent excessive soil deterioration:

strip material to the depths of between 10 to 15 cm.

topsoil to be maintained in a slightly moist condition during stripping. Material should not be stripped in

either an excessively dry or wet condition.

place stripped material directly onto re-graded river batters and spread immediately (if construction

sequences, equipment scheduling and weather conditions permit) to avoid the requirement for stockpiling.

if required, soil stockpiles will be left in as coarse condition as possible in order to promote infiltration and

minimise erosion until vegetation is established. This will also prevent anaerobic zones forming.

as a general rule, maximum stockpile heights will be less than 3 m.

if long-term stockpiling is required (i.e. greater than 12 months), they will be seeded and fertilised as soon

as possible. An annual cover crop species that produce sterile florets or seeds will be sown.

topsoil will be spread to a depth of approximately 100 mm pending site testing of subsoils.

3.2.4 Soil respreading and seedbed preparation. The following techniques will assist with optimum establishment and growth of vegetation:

ameliorate soils to minimise limitations, as identified in Section 3.2.2. The main limitation for the area’s

reusable soil is weak soil structure, sodicity, low or high pH and low organic carbon levels. These

limitations can be managed by the addition of organic matter. Organic amendment increases soil aggregate

stability and leads to improved soil structure.

topsoil is to be spread, treated with fertiliser and seeded in consecutive operations in order to reduce the

potential for topsoil loss from wind and water erosion.

where high salinity levels exist, consideration will be given to incorporating an intermediate soil layer

between the regraded saline subsoil and the non-saline topsoil. This will minimise the upward migration

of salts via capillary rise and reduce the risk of pasture roots contacting saline subsoils. The intermediate

layer should be benign soil and be incorporated into the reconstructed profile at a minimum depth of 20

cm prior to topsoil application.

where practical, topsoiled areas will be lightly contour ripped (after topsoil spreading) to create a ‘key’

between the soil and the underlying material. Best results will be obtained by ripping when soil is moist

and when undertaken immediately prior to sowing.

where practical topsoiled areas will be scarified prior to, or during, seeding to reduce runoff and increase

infiltration. This can be undertaken by contour tilling with a fine-tined plough or disc harrow.

establishment and incorporation of a (cover) crop.

The identification and management of the soil in situ is recognised as having a major influence on the successful

outcome of the project. The investigations undertaken in the development of the GRDRP and the information

contained in Attachment A is critical to UCML meeting these challenges. In addition to this, training by suitably

qualified professionals will be organised for staff and contractors to allow them to recognise and mitigate any soil

management risks that may be present.

3.3 Hydrocarbon spills. UCML instigates a number of preventive measures to minimise the possibility of hydrocarbon spills. For instance,

UCML conducts an “equipment introduction to site” process which is a rigorous assessment to determine that the

equipment used is fit for purpose. Care is also undertaken by the Site Superintendent to locate any refuelling


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activities away from drainage lines or sensitive areas. Spill response awareness will also be an integral part of the

pre project induction training mentioned above.

Should a hydrocarbon spill incident occur, it will be managed in accordance with the Hydrocarbon Spill Response

Plan USO SD PRO 0085. The three main steps in any spills are as follows:

Identify.

Identify the spilt substance, and follow clean up procedures according to its material data safety sheet (MDSS);

In the event of a spill, immediate notification should be given to the Environmental Coordinator. The principle

of containment is critical to minimising the environmental impacts from hydrocarbon or chemical spills.

Control.

Isolate the source of the spill immediately if it is safe to do so;

Eliminate all ignition sources;

Isolation of a spill may involve ensuring that bund valves are closed, shutting down equipment, or closing

pipe valves to ensure prevention of further spillage.

Contain.

Spills must be contained before they are able to leak into watercourses, drainage systems and the natural

environment;

Spill stations contain the necessary items to control spills such as mats, booms, and absorbent material. These

products are outlined in more detail below;

o mats are generally used for maintenance clean ups or the containment of small leaks;

o Booms are long ‘socks’ filled with absorbent material designed for placing around spills in order to contain

them. Generally, booms are used in major or serious spills;

o Absorbent material is used to pour over hydrocarbon spills to absorb the oil, enabling clean up and

disposal;

o Spill kits are to be inspected at 2 monthly intervals to identify any deficiencies in stock.

Any ponding of spills will be pumped into containers as quickly as possible.

3.4 Wet weather contingency. Where adverse weather conditions and activities have the potential to cause erosion, the Superintendent will

suspend that phase of the operation until weather conditions abate or effective mitigation procedures have been

instigated.

The following table represents the mitigative measures that may be applied. Additional measures may also be

implemented as identified and required.

Table 4: Wet Weather Trigger Action Response Plan (TARP)

.Trigger Response

No Alerts Response Required

1. Routine

Superintendent – Review

1. View weather webpage at commencement of each day. Check weather forecast for the following 7 days


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.Trigger Response

for chance of rain, likelihood, amount of rain and radar (regional weather).

2. If rainfall is forecast, also check regional weather warnings from the BOM webpage15

3. Note that the sediment control basins will have a permanently installed suction facility and a trailer

mounted pump (20 litres /second) on site for the duration of works. A backup pump will also be

available as a contingency.

2. Weather

Forecast

Superintendent – Actions. If forecast;

1. Fine or <5mm rain ;

a) No action required.

2. 5 – 20mm rain forecast over a single day;

a) Monitor weather via above steps every 6 hours for change;

b) If possible, for the period of the forecast event, organise tasks in areas that do not directly

report to watercourses;

c) Inspect all ESC works in the 24 hour period prior to the forecast event to ensure they are in

place and operational.

3. 20mm+ rain per day or 5 – 20mm forecast over multiple days;

a) Inform Major Projects Manager and Environment and Community Manager of expected high

rainfalls;

b) Monitor weather via steps above every 6 hours for change;

c) Manage works to minimise disturbed areas.

d) In the 24 hour period prior to the predicted event, apply compost blanket to a C – factor

requirement of 0.05 to disturbed areas. (See Section 4.1);

e) In the 24 hour period prior to the predicted event, prepare to cover all disturbed discharge

points with geofabric or the like, and placed in a manner that will minimise the possibility of

flows contacting exposed soils ;

f) Prepare to remove all equipment from within the watercourse catchment.

4. 50mm+ rain per day or 20-50mm forecast over multiple days;

a) Inform Major Projects Manager and Environment and Community Manager of expected high

rainfalls and organise meeting to determine appropriate action;

b) Monitor weather via above steps every 3 hours for change;

c) Maximise capacity within the sediment basins by ensuring that the structures were dewatered

within 5 days following the previous event16.

d) Implement steps 3 c, 3d, 3e and 3f as above.

e) Disturbed areas within the 2 year ARI will be minimised by sequencing works so that the rock

armour is placed on the revetment wall as soon as possible after disturbance. However as a

contingency, be prepared to cover all disturbed areas within the 2 year ARI with geofabric or

the like., keyed into the rock revetment where possible, and placed and staked to minimise the

possibility of flows contacting exposed soil ;

Triggers Response Required

3. Actual

Rainfall17

Received.

(1 in 2 year

event)

Superintendent.

1. Notify Major Projects Manager and Environment and Community Manager and organise meeting;

2. Implement actions as described in Step 2.3 above;

3. Inspect all ESC works to ensure they are in place and operational;

4. Dewater all sediment basins with 5 days following the event;

Environmental Officer.

1. Inspect works for runoff and ensure environmental compliance of all ESC works;

15 http://www.bom.gov.au/australia/warnings/?ref=ftr

16 Section 6.3.4 Capacity of Sediment Basins for type D and type F Soils – Managing Urban Stormwater Soils and Construction, Landcom 4th

Edition March 2004. 17 5mm – 20mm over a few hours or 50mm over 24h period or 90mm over 3 days


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.Trigger Response

Trigger Response

4. Actual

Rainfall18

Received

(1 in 10 year +

event)

Superintendent

1. Notify the Major Projects Manager and Environment and Community Manager of Category Red

situation and organise meeting;

2. Implement actions in accordance with Step 2.4 above;

3. Dewater all sediment basins with 5 days following the event;

4. Monitor works and implement any necessary remediation procedures as soon as practical after event

passes;

Environmental Officer.

1. Inspect works for runoff and ensure environmental compliance of all ESC works;

18 50mm over a few hours or 100mm over 24h period or 120mm over 3 days


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4 Revegetation.

4.1 Groundcover requirements. The risk of erosion and sedimentation to downstream environs is directly proportional to the level of soil

disturbance and exposure of the soil surface to the elements. For this reason, the Blue Book provides guidance on

the cover factor for various scenarios.

The cover factor, (C), is the ratio of soil loss from land under specified crop or mulch conditions to the

corresponding loss from continuously tilled, bare soil. A C-factor of zero would require 100% groundcover and a

C-factor of 1 would be 0% groundcover19.

The “Blue book” requires the C-factor for the GRD to be 0.05 see Table 5.

Table 5: Maximum acceptable C-factors at nominated times during works Lands

Maximum

C-factor

Remarks

Waterways and other areas

subjected to concentrated flows

post construction.

0.05

Applies after 10 working days from completion and before works

are allowed to carry any concentrated flows.

(Note: a C-factor of 0.05 can be achieved in various ways,

including with about 70% groundcover.).

Where works are to be undertaken

within the 2-year flood level. 0.05

No lands below the 2-year flood level are to be left in a disturbed

condition after works are complete for more than ten working

days by reducing the C-factor to less than 0.05. Materials must be

used here that are stable under concentrated flow conditions.

This means progressive rehabilitation as the works proceed.

Stockpiles post construction.

0.10

Applies after 10 working days from completion of formation

(Note: a C-factor of 0.10 is achieved with about 60% groundcover)

All lands within the CRZ (Core

Riparian Zone). 0.10

C-factors above 0.1 only when the 3-day forecast suggests that

rain is unlikely. Ensure provision of sufficient 350 gsm jute

matting or equivalent to reduce the C-factor to less than 0.10 on

all disturbed lands.

All lands, including waterways and

stockpiles during construction.

0.15

Applies after 20 working days of inactivity, even though works

might continue later (Note: a C-factor of 0.15 can be achieved in

various ways, including with about 50% groundcover.)

Where works occur in or close to watercourses, the Site Supervisor or someone nominated by him/her, must record in a

notebook each day:

- the C-factor status at various positions along the watercourse.

- publicised weather forecasts.

19 Managing Urban Stormwater: Soils and Construction Volume 1 (Landcom, 2004) and Volume 2D (DECC, 2008) (the Blue Book)


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Figure 7 provides an assessment of the percentage grass cover required to achieve the nominated C-factor.

Figure 7: C-factor for grass cover.

4.2 Tree and shrub seed collection and propagation. A targeted seed collection program has been implemented at Ulan Mine in order to maximise the amount of viable

seed of local provenance for use in the ongoing rehabilitation and revegetation activities.

A revegetation plan has been developed by Eco Logical20.

Eco Logical recommended zonal vegetation plantings based on local providence, species location within the

riparian zone and bank stabilisation. See Figure 8.

SJ Landscapes, will conduct much of UCMLs seed collection, and collect seed where possible as indicated in Table

6.

20 Goulburn River Diversion Rehabilitation Works Eco Logical August 2014


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Figure 8: Typical Zonal Planting cross section21

21 Goulburn River Diversion Rehabilitation Works Eco Logical August 2014


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Table 6: Indicative Species List

4.3 Pasture seeding. The pasture species mix will generally be in accordance with the specification provided in Table 7 below. Species

selection may change slightly based on final soil analysis and agronomic advice.

It is also intended that on some batters a Couch turf will be utilised and then over sown with native grass seed


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TABLE 5.

PASTURE SPECIFICATION

Salt tolerant22 Acid tolerant23

Species Rate (kg/ha)

Spring/Summer Autumn/Winter

Japanese Millet 20 5

moderate

Ryecorn/Oats/Barley 5 20

Wimmera Ryegrass 5 10

Couch 10

White Clover 8 moderate

Sub Clover 8

Serradella 10 moderate

Consol 2 - moderate

Starter Fertiliser (sowing) 300 300

Maintenance fertiliser (following autumn / spring) 100 100

Table 7: Indicative cover crop species list24

All legumes will be inoculated and lime pelleted prior to seeding.

Revegetation activities will generally be undertaken in spring and autumn, however, opportunistic revegetation

will be practiced if areas become available for sowing in summer and winter.

After surface soil amelioration and tillage is completed for any given area, revegetation will commence as soon as

practicable. The proposed method of sowing will be via conventional spreading using agricultural broadcasting

equipment.

Fertiliser application will be kept to a minimum and if required will be undertaken simultaneously with both tree

and pasture seeding. Maintenance fertilising will be conducted as required. Fertiliser type and application rates

will be determined by prior soil analysis.

Revegetation may be assisted with irrigation.

4.4 Imported topsoil or soil conditioner. The Soils Inventory study identified adequate stockpiles of topsoil on site. This topsoil will be mixed with a

composted soil conditioner and used to improve soil structure & organic matter levels.

The soil conditioner will be unrestricted for use near watercourses by the NSW EPA25 and will be compliant with

the appropriate standards26. The soil conditioner will have an organic matter level of 45% and once blended with

the top 80 mm of topsoil, would have an average organic matter level of around 8%27.

22 Pastures and Acid Soils, NSW Department of Primary Industry fact sheets (1999) 23 Dryland Salinity: Productive Use of Saline Land and Water, Department of Environment and Climate Change, 2001 24 Ulan Integrated Mine Operations Plan 2012 to 2017.

25 NSW Environment Protection Authority Guidelines – “Use and disposal of biosolids products” December 2000

http://en.wikipedia.org/wiki/File:Yes_check.svg












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4.5 Compost blanket. The application of a plant residue, or other suitable material, to the land surface is required to provide protection,

and maintain the required C-factor, until the vegetative cover can establish and guard against erosive forces. Refer

to Section 4.1.

Attachment H (1) provides a summary of some popular blankest and their characteristics.

Attachment H (2) provides advice on the C – factor achieved by various compost blanket products.

26 Australian Standard AS 4454(2012) Composts, soil conditioners and mulches. 27 Australian Native Landscapes (ANL) product specification sheet for “Nitrohumus”


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5 Schedule of Works

The schedule of works follows the general principles of the Blue Book such as;

minimise the areas of disturbance;

manage runoff from undisturbed catchment around or through the worksite;

manage runoff from disturbed areas via sediment basins constructed to the 85th percentile where possible and

reinstate storage after rainfall events;

establish groundcover as soon as possible after disturbance.

In addition, the construction of the upstream diversion drain is scheduled such that worked areas are continually

within contained areas, runoff from disturbed areas for this part of the works will report to the East Pit, not the

diversion. The schedule for 2017 is provided below:

Attachment J and K provides specific Erosion and Sediment Controls for the remaining works.

6 Training and Awareness

UCML recognises that training and awareness is an integral part of the implementation of an effective ESCP.

UCML’s environmental training and awareness program is detailed within the Environmental Management Strategy

and includes clear responsibilities for ESC.

Training specific to this project will be supplied by a suitably qualified professional(s) and will cover ESC

principles, soil management and hydrocarbon management as a minimum, and will be provided to all employees

and contractors participating in the project.


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7 Monitoring

The project will also be monitored in accordance with the Surface Water Monitoring Program (SWMP ULN SD

PLN 0034).

This has been supported by the recent installation of continuous turbidity monitoring equipment. Water sampling

data will be managed and stored in the “Citect” Information Management System and any exceedences initiate an

alert to the relevant staff.

The works will be monitored at an operational level by the Site Superintendent, the Site Supervisor and the

Environment Officer. This will include regular site inspections and investigating and trigger level exceedences

determined from the above mentioned monitoring.

At a strategic level, the plan will be monitored and reviewed in collaboration with the respective stakeholders as

part of the Pilot Remediation area review. See Section 3 of the Goulburn River Diversion Remediation Plan.

Finally, all works will be assessed on completion by a suitably qualified professional(s) to certify compliance with

design criteria and verify the durability of works in accordance with Section 6 - Project Closure Criteria, Goulburn

River Diversion Remediation Plan.

In the event that theses review procedures initiate significant changes to this Erosion and Sediment Control Plan,

the revised Plan will be resubmitted to the department for approval.

8 Responsibilities

Specific roles and accountabilities for employees and contractors in relation to this ESCP are outlined below

Role Accountability

Major Projects Manager Approve appropriate resources for the effective implementation of this Plan;

Ensure the effective implementation of strategies designed to reduce downstream

sedimentation;

Ensure any potential or actual erosion and sediment control issue is reported in

accordance with legal requirements and the corporate standard;


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Role Accountability

Authorise internal and external reporting requirements of this Plan;

Approve subsequent revisions of this Plan;

Environment and

Community Manager

Provide ongoing review of this ESCP and advise Major Projects Manager of any

required changes;

Provide sufficient resources for the implementation of this Plan;

Identify water management risks and impacts to the environment and assess resources

required to mitigate identified risks and impacts within the site;

Ensure that the results of monitoring are evaluated and reported to senior management

and to relevant personnel for consideration as part of ongoing planning;

Ensure any potential or actual surface water issue is reported in accordance with legal

requirements and the corporate standard;

Provide visible and proactive leadership in relation to the erosion and sediment control

management;

Ensure all reporting complies with internal and external monitoring standards,

protocols and regulations;

Proactively engage government and community as required.

Rehabilitation

Superintendent.

Ensure adequate resources are budgeted for in relation to water monitoring or erosion

and sediment control for their task/project;

Ensure that operational changes consider the potential impacts on erosion and

sediment control on the surrounding environment and adjacent landholders;

Manage equipment and tasks to mitigate the impact of esc;

Provide visible and proactive leadership in relation to the erosion and sediment control

management;

Ensure all erosion and sediment control measures are in place in accordance with their

respective ESC plan and Ground Disturbance Permit;

Ensure any work requiring ground disturbance is approved prior to disturbance in

accordance with EMS (where relevant);

Coordinate the implementation of corrective actions and evaluate their effectiveness.

Site Supervisor Ensure all erosion and sediment controls are in place;

Day to day communication with contractors on ESCP requirements;

Daily workplace inspections of ESC works;

Report SD incidents or any community complaints;

Monitor the C-factor on a daily basis as required.

Project Engineer Provide engineering input into all erosion and sediment control plans developed for

each area of the diversion;

Ensure that all ESCPS are prepared in accordance with the ESCP (ULN SD PLN 0025);

Ensure that works are constructed to the appropriate design and standards;

Ensure adequate resources are budgeted for the implementation of the plan;

Project Manager Assist the Manager Major Projects in the execution of their duties;

Coordinate risk assessment for the works as required;

Coordinate ESC training for all personnel involved in the project;

Identify resources required for project completion and develop budgets and required

project documentation to guide the project;

Ensure ongoing consultation with relevant government departments is undertaken to

achieve completion criteria;

Ensure any work requiring ground disturbance is approved prior to disturbance in

accordance with EMS (where relevant);

Investigate any environmental or other SD incidents and provide reports to the Major

Projects Manager accordingly;

Prepare internal and external reports as required for final approval by the Manager

Major Projects.


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Role Accountability

Environment and

Community

Coordinator/Officer

Ensure monitoring equipment is operated in accordance with relevant industry

standards and protocols;

Ensure that all monitoring records are effectively maintained on site in accordance with

the EMS;

Coordinate the collation and evaluation of monitoring data;

Regularly report environmental performance to E&C Manager;

Prepare internal and external reports for review by E&C Manager;

Conduct environmental inspections in accordance with the GRDRP;

Ensure any potential or actual water management issue, including incidents and non-

conformances is reported to the ECM;

Coordinate incident investigation processes including associated reporting

requirements, in accordance with the EMS;

Provide visible and proactive leadership in relation to surface water management and

erosion and sediment control;

Participate in the ongoing review of this Plan;

Ensure the adequacy of ESC Plans in accordance with the Ground Disturbance Permit.

All employees and

contractors

Ensure the effective implementation of this plan.

Ensure any potential or actual water management issues, including environmental

incidents, are reported to the Project Manager, Supervisor or Task Coordinator.

Seek approval from the Project Manager, Supervisor or Task Coordinator prior to

making changes to the water management system.

9 Control and Revision history

9.1 Revisions

Version Date reviewed

Review team

(consultation) Nature of the amendment

1.0

ULN

SD PLN

0104

April 2014. Rod Reinhard

Robyn Stoney

Ian Flood

Chris Glennon

New Document was originally uploaded as PDF document

number ULN SD PLN 0104

1.0

ULN

SD PLN

0130

May 2017 Stephen Hawkins

Robyn Stoney

Updated changes to the general arrangements for surface

water controls and schedule, consistent with GRDRP

Eco logical revised vegetation plan. Resubmitted to DP&E

for approval in May 2017, approval received 31/05/2017.

Goulburn River Diversion Erosion and Sediment Control Plan€¦ · Plan for Goulburn River...

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Transcript of Goulburn River Diversion Erosion and Sediment Control Plan€¦ · Plan for Goulburn River...