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DEVELOPMENTand

OPERATIONS PLAN

EXTRACTIVE INDUSTRY(SAND)

LOT 68TANAH MARAH ROAD

BRAMLEY(Shire of Augusta Margaret River)

February 2016Version 5b

On behalf of:BCP Materials Pty LtdPO Box 1876BUSSELTON WA 6280P: (08) 9752 1000

Prepared by:

David BillsWaste & Environmental Consulting ServicesPO Box 1316BUSSELTON WA 6280M: 0455 455 363 E: [email protected]

Greg HarewoodEnvironmental Management ConsultantPO Box 755BUNBURY WA 6231M: 0402 141 197 E: [email protected]

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TABLE OF CONTENTS

1 INTRODUCTION........................................................................................... 1

2 LOCATION AND SITE DETAILS.................................................................. 2 2.1 PROPERTY DETAILS AND OWNERSHIP .......................................................... 2 2.2 EXISTING AND SURROUNDING LAND USE...................................................... 2 2.3 PROPERTY ACCESS.................................................................................... 3 2.4 SERVICES.................................................................................................. 3 2.5 DESCRIPTION OF THE SITE .......................................................................... 3

2.5.1 Landform and Soils ............................................................................ 3 2.5.2 Topography........................................................................................ 3 2.5.3 Vegetation ......................................................................................... 4 2.5.4 Fauna ................................................................................................ 4 2.5.5 Groundwater ...................................................................................... 4 2.5.6 Surface Water.................................................................................... 4 2.5.7 Acid Sulphate Soils ............................................................................ 5

3 SCALE AND NATURE OF OPERATIONS ................................................... 6 3.1 EXTRACTION PROCESS AND STAGING .......................................................... 6 3.2 VEGETATION AND TOPSOIL REMOVAL........................................................... 6 3.3 PROPOSED OPERATING TIMES .................................................................... 7 3.4 ON-SITE MAINTENANCE OF VEHICLES .......................................................... 7

4 RESOURCE HAULAGE ............................................................................... 8 4.1 ROUTE IDENTIFICATION............................................................................... 8 4.2 NUMBER OF TRUCK TRIPS GENERATED BY THE EXTRACTIVE INDUSTRY........... 8 4.3 POINT OF ACCESS ONTO THE LOCAL ROAD NETWORK ..................................... 8 4.4 OTHER MATTERS ....................................................................................... 8

5 ENVIRONMENTAL CONSIDERATIONS...................................................... 9 5.1 NOISE MANAGEMENT.................................................................................. 9 5.2 DUST MANAGEMENT................................................................................... 9 5.3 DIEBACK MANAGEMENT.............................................................................. 9 5.4 DRAINAGE MANAGEMENT............................................................................ 9 5.5 REHABILITATION MANAGEMENT ................................................................. 10

6 REFERENCES............................................................................................ 12

FIGURES

FIGURE 1: Location Plan

FIGURE 2: Orthophoto

FIGURE 3: Surrounding Land Use

FIGURE 4: Existing Contour Plan (1m)

FIGURE 5: Test Pit Sites

FIGURE 6: Proposed Site Layout Plan

FIGURE 7: Proposed Finished Surface Plan

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APPENDICES

APPENDIX A: Certificate of Title

APPENDIX B: Noise Management Plan

APPENDIX C: Dust Management Plan

APPENDIX D: Dieback Management Plan

APPENDIX E: Drainage Management Plan

APPENDIX F: Rehabilitation Management Plan

Extractive Industry – Lot 68 – Tanah Marah Road – Bramley – February 2016

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1 IntroductionBCP Materials Pty Ltd (BCP) are, with the landowner’s permission, proposing to extract sand from a deposit which has been identified within Lot 68, Tanah MarahRoad, Bramley (the site). This report contains supporting information required by the Shire of Augusta Margaret River (the Shire) as part of the development assessment and approval process for the proposed extractive industry.

The site is located approximately 10 km north-east of Margaret River (Figure 1). Thetargeted deposit covers a total area of about 34.3 ha and is situated on mainly cleared agricultural land currently being used as a bluegum plantation. The removal of the bluegums by WA Plantation Resources (WAPRES) is planned within the next few months.

It is estimated that the sand resource identified within Lot 68 consists of about 514,500 m3 of material (assuming 1.5 metre average thickness – ranging from 0.5 m to 2.0 m). The proposed pit area is shown in attached figures.

The extraction and screening of the sand will take place on site with the product then being transported to various sites for use mainly within the Shire of Augusta Margaret River and the City of Busselton. The life of the project is currently estimated to be about 10 years with sand extraction commencing soon after the required approvals are obtained. The exact life of the project is however difficult to estimate as it is totally dependent on demand trends.

This document has been submitted to fulfil relevant requirements set out in TheShire’s Local Planning Policy 3 – Extractive Industries (LPP3) and is intended to provide the Shire, the public and relevant government agencies with an understanding of the proposal and the environmental strategies and commitments applied to address various environmental and social issues.

In addition to general references, relevant recommendations and guidelines set out in the following publications have also been utilised during the preparation of thisdevelopment plan:

Environmental Management of Quarries (1991) – DME (now DMP);

Environmental Code of Practice - Extractive Industries (1990) – DEP (now EPA);

Water Quality Protection Guidelines No.6 (2000) – WRC (now DoW);

Water Quality Protection Note 15 – Extractive industries near sensitive water resources (2013) – DoW; and

South West Region Guideline - Water Resource Considerations for Extractive Industries (2014) – DoW.


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2 Location and Site Details2.1 Property Details and Ownership

The proposed sand pit is located within the boundary of Lots 68 (Plan 30071 -Volume 2222 Folio 843 – see Appendix A) which is owned by the Threadgold family. The site is bounded by Tanah Marah Road to the north and other freehold properties on other boundaries (Figures 1 & 2).

With the owner’s permission the extractive industry licence and the associated development application are being applied for by BCP Materials Pty Ltd (BCP). Operations manager will be Kyle Jackson (P: 9752 1000).

2.2 Existing and Surrounding Land Use

The project is located in the Shire of Augusta Margaret River, in an area zoned ‘Priority Agriculture’. Extractive Industries are managed under the Shire’s Local Planning Policy 3 – Extractive Industries. The purpose of this policy is to ensure that extractive industries are suitably located so as not to cause disruption to amenity, the environment or the proper functioning of the transport network.

The site is under lease to WAPRES as a bluegum plantation that is soon to be harvested. The proposed extraction area has been position within these previously cleared bluegum plots and no extraction will occur where retained trees or remnant native vegetation occurs. Subsequent to sand extraction thelandowners intend to return the property to an agricultural grazing regime. Thesurrounding freehold properties are of a similar nature and are or have been used for livestock grazing, agriculture, plantation timber and gravel extraction.

Based on examination of the most recently available air photo (IntraMaps -Shire Aerial 2013) there are a total of nine houses within a 1 km radius of the proposed extraction boundary. Two of these houses (situated on Lot 13 and Lot 69) are within 500 metres of the south east corner of the proposed extraction area (Figure 3).

There are several existing /decommissioned gravel and sand extraction areas north and south of Tanah Marah Road to the west of the proposed sand extraction area (Figure 3).

Overall no significant amenity issues are anticipated. The extraction site is located in a rural area with surrounding properties to the north, east and west also being used as tree farms. To the south is agricultural land used for grazing. In addition to distance, existing vegetation along the road and retention of vegetation along the property boundaries, within the site provides a


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visual/dust/noise buffer and screen from road users and the limited number of closer residences.

2.3 Property Access

It is proposed to use the existing entry point into Lot 68, located along its northern boundary (Figure 3).

2.4 Services

No new services will be required during the operation and rehabilitation of the pit area. There will be no disruption to existing services (power, gas or telephone) as a consequence of sand extraction or transportation.

2.5 Description of the Site

The site lies within the Margaret River Plateau, an area of gently undulating plateaus dissected by a series of valleys. The site and surrounding properties has been largely cleared for agriculture (grazing) and subsequently, in some instances, plantation timber (bluegums).

2.5.1 Landform and Soils

Soils and landforms of the area have been described and mapped by, Tille and Lantzke (1990) and most recently by the Agricultural Department (Agmap2003). The above mapping has classified the majority of the proposed extraction site as Cowaramup Vales which is described as consisting of narrow to broad shaped drainage depressions with gravelly (Forrest Grove) duplex soils on side slopes and alluvial soils on valley floors (Agmap 2003).

Geological survey mapping of the area shows the project area to be locatedwithin Cowaranup Flats of the Margaret River Plateau, a gently undulating plateau formed of marine and sedimentary rocks overlying the laterised granitic and gneissic basement rock of the Leeuwin Block. It is 5 – 15 km wide and extends from Dunsborough to Augusta.

The sand resource the target of the proposed extractive operation is the result of weathering of the sedimentary rocks and from windblown (aeolian) sands.

2.5.2 Topography

Lot 68 is located on a gently undulating plateau with a broad U-shaped drainage line to the south east in the top half of the property and another broad drainage line running south west in the lower south east corner of the property. The land generally slopes towards the south with an elevation that varies between about 119m (AHD) in the north west corner to about 104 m (AHD) in the south west corner (Figure 4).


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2.5.3 Vegetation

The site was predominantly (> 95%) cleared in the past and has since been planted out as a bluegum plantation by WAPRES. There is a small approximately 2.3 ha area of remnant jarrah-marri-banksia dominated vegetation in the northeast corner of the property, which will be retained. Additionally, there is regrowth vegetation along the south east and south west drainage lines, which will be protected by a proposed 15m wide (minimum) buffer either side of the creek channels.

Once the bluegums have been harvested BCP will extract the sand resourceprior to replanting to pasture. As no native or remnant vegetation clearing is proposed no permit is required from the Department of Environment Regulation(DER).

2.5.4 Fauna

The proposed extraction area has limited value for terrestrial fauna species given the absence of native vegetation of almost the entire site. The temporary use of the area for a sand pit will have no detrimental effect on fauna in the region. The small areas of remnant vegetation present within the site will not be disturbed and will provide habitat for any fauna currently using the site.

2.5.5 Groundwater

There is no defined superficial aquifer in the region. Rather, aquifers are found in the fractured basement rock. Rainfall is typically stored in the soil and once this capacity is exceeded it is released as surface water into depressions that flow into drainage lines that ultimately flow into Bramley Brook.

There is no superficial groundwater resource at Lot 68. Test pits have been dug at the premises to the clay substrate (nominally between 2.0 to 2.5 metres below ground surface level) with no water being intersected (Figure 5).

DoW’s Water Information Reporting database shows no deep bores having been drilled within 5km of the property. All bores recorded in the database in the vicinity of the property are shallow (< 5-metres) with water levels, where encountered, > 2.5-metres below ground surface level.

2.5.6 Surface Water

The site is located within the Margaret River watershed but outside the proclaimed Ten Mile Brook Dam catchment area. There are several small lower order seasonal water courses located to the east and west of the proposed extraction area, however due to the limited catchment area, relatively gentle slopes and sandy soils of the proposed extraction area itself, surface water runoff would be negligible in most circumstances. Runoff and interflow (rainfall that percolates through the sand layer to the underlying clay beneath, flows


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under gravity and to the shallow drainage lines that flow south east and south west, the location of which are evident in Figure 2.

As indicated a minimum 15m wide buffer will be in place around creek lines on the property within which no extraction or clearing will take place.

2.5.7 Acid Sulphate Soils

In Western Australia the ASS risk maps have been developed based on existing 1:50 000 urban and environmental geology map series published by the Geological Survey of WA (Degens 2006). The ASS risks are classified into two categories on the basis of ASS occurrence within the soil profiles:

high to moderate risk of ASS occurrence within 3m from the surface elevation;

moderate to low risk of shallow ASS occurrence at depth beyond 3m from surface elevation.

Most of Lot 68 has been mapped as having a “moderate to low risk of shallow ASS occurrence at depth beyond 3m from surface elevation” with no areas of “high to moderate risk” shown in the vicinity (Landgate 2015). Other areas of Lot 68, not mapped in either category can be considered as having no risk of ASS.

The potential to activate acid sulphate soils as a consequence of sand extraction activities can therefore be considered to negligible. This conclusion is supported by the fact that the target resource is continuous leached quartz sand with a maximum thickness of about of 2 m from surface. There are no intervening clay layers and the target resource is already exposed to air.


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3 Scale and Nature of Operations3.1 Extraction Process and Staging

The proposed pit layout is shown in shown in Figure 6. The resource covers an area of about 34.3 ha of cleared agricultural land and consists of approximately514,500 m3 of sand (assuming 1.5 metre average thickness – ranging from 0.5 m to 2.0 m). If it is assumed that the annual amount of sand extracted will be no more than 50,000 m3, the entire life of the project is estimated to be aboutten years with extraction commencing soon after the required approvals are obtained. The actual amount extracted will however depend on a variety of factors, primarily product demand.

The extraction and screening of the sand will take place on site with the product then being transported to various sites for use mainly in road construction within the Shire and adjoining areas. Sand extraction will be carried out using a front end loader and a portable screening plant. There will be no crushing or blasting required. An excavator may also be used for some applications.

Extraction and rehabilitation will be staged so that at no one time is a combined area greater than ~2 ha is exposed. The extraction sequence will be designed and implemented to reduce the potential of wind and storm water erosion by limiting the open pit area as far as reasonable and practicable. Indicative stage cells are shown within Figure 6 to illustrate their relative scale. The actual location of anyone cell may vary from this as a range of unknown variables affect actual pit layout at any one time.

Sand will be extracted, screened and transported typically in one operation removing the requirement for stockpiling for extended periods. If storage of processed sand is required, stockpiles will be located within the existing pit boundaries to a maximum height of 2.0 m and in a location that minimises potential amenity issues.

3.2 Vegetation and Topsoil Removal

The proposal will require the disturbance of about 34.3 hectares of cleared agricultural land. No regrowth or remnant vegetation will be cleared or impacted upon.

Topsoil to a nominal 100 mm thick will be removed prior to the commencement of operations on each cell. Topsoil on the site is relatively light in nature and will be stored in stockpiles no higher than 2.0 m. Topsoil stockpiles for each 2 ha area cleared will therefore have a maximum volume of about 2,000 m3 (i.e. 2.0 ha x 0.1 m). Indicative topsoil stockpile locations are shown in Figure 6. The actual location of topsoil stockpiles may vary from this as a range of unknown variables affect actual pit layout.


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3.3 Proposed Operating Times

Operating times will be restricted to between 7am to 7pm Monday to Friday and 7am to 1pm on Saturday, and exclude Public Holidays. BCP will not operate its trucks on Monday to Friday between hours specified by the Shire of Augusta Margaret River on any given school day on any designated school bus route. Modifications to operating times (either temporary or permanent) may also occur as a result of any other specific direction from the Shire.

Actual operating times within the prescribed periods will be dependent on product demand.

3.4 On-Site Maintenance of Vehicles

Fuel, oil, coolant and lubricant will be brought onsite as required by a fullycontained mobile service truck. The mobile service truck will be appropriately designed to prevent spillages to the environment and will carry appropriate spillprevention (e.g. drip trays) and clean-up equipment. All waste oil will be removed from site. No hydrocarbons of any type will be stored on site.

Where major servicing is required, the vehicle in question will be removed from site. In the event of a breakdown necessary precautions will be taken to ensure hydrocarbons do not enter the environment. Hydrocarbon spill kits will be utilised in the event of a spill and any contaminated soil will be contained and removed to an appropriate disposal site.


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4 Resource Haulage4.1 Route Identification

The proposed transport route east/west along Tanah Marah Road to and from Bussell Highway (~5.1 km) (Figure 1 and 3). Trucks will enter/leave Tanah Marah Road via Bussell Highway from both the north and south depending on their origin/destination.

Tanah Marah Road is in current use for this same purpose by trucks carting gravel from Reserve 23495 and in the past from other extraction sites including a sand (grit) pit located in Lot 67.

4.2 Number of Truck Trips Generated by the Extractive Industry

Trucks used for the transportation of the material will vary between 6 wheelers (capacity ~10m3) and semi tippers (capacity ~18m3). Road trains (“B” trains -capacity ~25m3) will not be utilised.

It is estimated that on average about 20 truck movements a day will occur (assuming all semi tippers used) and ~50,000 m3 is moved per year (assuming ~261 working days). The transport of material will be dependent on demand and therefore periods of greater truck movements will occur while during other periods there will be no activity.

4.3 Point of access onto the local road network

It is proposed to use the existing entry point into Lot 68, located along its northern boundary (Figure 3). Existing internal roads will be used in addition to the construction of several new ones as shown in Figure 6. No additional upgrade works, apart from normal maintenance, is anticipated.

4.4 Other Matters

Approved road signs warning other road users of trucks entering and using the public road system will be installed (where necessary) along the proposed transport routes to and from Bussell Highway.

At this point in time no additional upgrades (e.g. intersections, drainage or bridges) are anticipated.


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5 Environmental Considerations5.1 Noise Management

Due to the small scale of the propose operation, its rural location, limited operating times and screening provided by distance and existing vegetation, noise (and vibration) is not anticipated to cause any issue. In addition it is also proposed to initiate a noise management plan to further reduce the chances of unforeseen issues arising. The proposed Noise Management Plan is held in Appendix B.

5.2 Dust Management

A Dust Management Plan has been formulated and will be implemented during the life of the project to ensure that any dust created by activities onsite cannot possibly reach levels that could adversely affect the environmental values of health, welfare and amenity of people and land uses in the immediate vicinity. The proposed Dust Management Plan is held in Appendix C.

5.3 Dieback Management

The dieback status of the area to be excavated cannot be determined due to the lack of native vegetation/indicator species and the area is therefore classified as uninterpretable. From a management perspective, extraction sites that have already been infected with dieback, or are classified as dieback uninterpretable, do not require quarantine of material or wash down of machinery entering or exiting the site. Such measures are generally used to protect dieback free material (a valuable resource) from becoming infected.

Nonetheless a Dieback Management Plan has been formulated and will be implemented during the life of the project with the principle aim of managing the extractive industry operation on the property to minimise the spread of Phytophthora spp. by mechanical means (unclean machinery). The proposed Dieback Management Plan is held in Appendix D.

5.4 Drainage Management

The proposed extraction operation will be designed, constructed and operated to avoid disruption of surface water flows, minimise erosion and ensure that potential contaminants (i.e. silty water) are not released into the environment.

A Drainage Management Plan (incorporating surface water/stormwater controls), will be implemented during the life of the project with the primary aim of ensuring no erosion or escape of silty water from the excavation site or from associated stockpiles occurs, with a particular focus on preventing any turbid water enters the watercourses present on the property. The plan has been


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formulated to comply with relevant guidelines contained within the Water Resource Considerations for Extractive Industries document (DoW 2014).

Due to the limited catchment area upslope of the proposed pits, the unconsolidated nature of the soil and the proposed maximum 2 hectare size of the active excavation area it is anticipated that any surface water not diverted away from the site will be contained easily within the confines of the embankments of the pit excavations and will in most, if not all cases, soak away through the soil profile across the pit floor or on the lower pit face.

In addition, temporary storm water detention basins will be constructed in eachstage along their lowest boundaries and all storm water generated within the active cell will naturally flow towards these low points (Figure 6). The detention basins will serve as effective silt traps in times of high surface runoff with allstormwater captured within the confines of the cell operating at the time beingcontained and no sediments or turbid water will be allowed to escape the site under any circumstances.

Runoff generated within the extraction area under a 10 year, 2 hour Average Recurrence Interval (ARI) Design Storm has been calculated for each ~2.0 ha stage using the Rational Equation Method (Q=ciA) using the following parameters:

c - Runoff coefficient (Soil Group A (+ disturbed) - very low runoff potential. Water moves into and through these soil materials relatively quickly (Table A5-3 – SCRC Manual for Urban Erosion and Sediment Control (2008)) = 0.37 (21-40 mm rainfall intensity in the design storm (2 hrs).

i - Rainfall intensity, mm/hour (10 year 2 hr ARI - BOM 2015) = 17 mm/hr.

A - Drainage area = 2.0 ha.

This equates to a peak surface water discharge of 0.034655647 m3/s or approximately 250 m3 for a 2 hour storm event. The proposed stormwater detention ponds in each cell will therefore be sized to manage, at a minimum,this runoff.

Overland stormwater flows generated upslope of the extraction areas will be diverted around each cell via earthen bunds constructed from topsoil stockpiles, indicative positions of which are shown in Figure 6.

Additional surface/storm water controls that will be put in place are described within the proposed Drainage Management Plan which is held in Appendix E.

5.5 Rehabilitation Management

Rehabilitation of the excavated areas will be progressive and will aim to return the land progressively back to its historical land use, livestock grazing, after the


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operations are complete. The proposed Rehabilitation Management Plan is held in Appendix F.

The proposed finished surface plan is shown in Figure 7. The final pit floor will in most areas be defined by the underlying gravelly duplex (Forest Grove) and pale grey mottled (Mungite) soils. It is estimated that this surface is located approximately 0.5 to 2.0 m below the existing ground surface.


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6 References(not necessarily cited)

Department of Agriculture Western Australia (2003). Agmaps – Land Profiler

Department of Environment and Conservation (DEC) (2011). A guideline for managing the impacts of dust and associated contaminants from land development sites, contaminated sites remediation and other related activities.

Department of Environmental Protection (DEP) (1990). Codes of Practice for Extractive Industries, Department of Environmental Protection, Perth.

Department of Water (DoW) (2014). South West Region Guideline - Water Resource Considerations for Extractive Industries.

Degens, B. (2006). Metadata Statement for the Acid Sulfate Soil Risk Map, Swan Coastal Plain, Western Australia. Department of Environment and Conservation Government of Western Australia

Department of Minerals and Energy (DME) (1991). Environmental Management of Quarries, Department of Minerals and Energy, Perth.

Dieback Working Group (DWG) (2005). Management of Phytophthora Dieback in Extractive Industries.

Landgate (2015). WA Atlas – ASS Risk Mapping: available at https://www2.landgate.wa.gov.au/bmvf/app/waatlas/

McArthur, W.M. (1991). Reference Soils of south-western Australia, Western Australia Dept of Agriculture, Perth.

Shire of Augusta Margaret RIver (2014). Local Planning Policy – Extractive Industries.Strickland, C. D. (2013). Regionally significant basic raw materials, Busselton–Clairault, Resource potential for land use planning (1:100 000 scale): Geological Survey of Western Australia.Tille, P.J. and Lantzke, N.C. (1990). Busselton-Margaret River-August land capability study. Western Australian Department of Agriculture, Land Resources Series No.5, Perth.

Waters & Rivers (2000). Water Quality Protection Guidelines No.6: Mining and Mineral Processing, Minesite Stormwater. Waters and Rivers/DoME, Perth.

Western Australian Planning Commission (WAPC) (2003). Planning Bulletin 64. Acid Sulfate Soils. ISSN 1324-9142.

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DRAWN:G Harewood

DATE :

SCALE:

Figure: 7

Nov 2015


Proposed Finished Surface Plan

MGA Zone 501:4,000


Proposed Rehabiliation Areas

1m Contours

On contour ripping& bunding (50cm high)for stormwater control

Rehabilitation Surfaceapproximantely 0.5 to 2.0 mbelow natural surface

1:5 Batters alongpit boundaries

Appendix ACertificate of Title

JOB 49442943Wed Nov 18 11:03:03 2015

Appendix BNoise Management Plan

NOISE MANAGEMENTPLAN




February 2016


Prepared by:



- i -

TABLE OF CONTENTS

1 INTRODUCTION........................................................................................... 1

2 NOISE MANAGEMENT PLAN ..................................................................... 2

Noise Management Plan - Extractive Industry – Lot 68 – Tanah Marah Road – February 2016

1

1 IntroductionBased on examination of the most recently available air photo (IntraMaps -Shire Aerial 2013) there are a total of nine houses within a 1 km radius of the proposed extraction boundary. Two of these houses (situated on Lot 13 and Lot 69) are within 500 metres of the south east corner of the proposed extraction area (Figure 3).

It is proposed to implement the following noise management plan during the life of the project to ensure that site works do not result in the generation / emissionof unacceptably high levels of noise that may affect the existing local amenity to residents in the vicinity.

Machinery used to carry out sand extraction, loading (a bulldozer and/or front end loader) and transport (trucks) will represent the main source of noise from the site during operation. The use of earthmoving equipment will be restricted to the sand extraction area, whilst haulage vehicles will utilise the access track through Lot 68 to Tanah Marah Road.

Operating times will be restricted to between 7:00am and 6:00pm, Mondays to Fridays only, and exclude Public Holidays. Trucks will not to operate on Monday to Friday between hours specified by the Shire of Augusta Margaret River on any given school day on a school bus route. Modifications to operating times (either temporary or permanent) may occur as a result of specific direction from the Shire. Actual operating times within the prescribed periods will be dependent on product demand.

Due to the small scale of the operation, rural location, limited operating times and screening provided by existing vegetation, noise is not anticipated to cause any issues however additional controls that will or may be put in place are described within the following management plan.


2

2 Noise Management PlanManagement Actions:

Topsoil stockpiles will be put in place around the perimeter of the working pit and will act as noise bunds. Distance and existing vegetation will also contribute to minimising excessive noise transmission to nearby residences.

Restriction of noise generation activities to approved operating times (7.00am to 6.00pm Monday to Friday and exclude public holidays).

Internal traffic routing will be optimised to reduce vehicle reversing requirements (to minimise noise associated with reversing alarms).

Regular maintenance of plant and machinery: Identified noisy equipment will be removed or its use terminated pending repairs. Equipment identified as having excessive exhaust noise will be managed by fitting new/modified mufflers to minimise noise as far as practicable. Replacing tonal reversing ‘beepers’ with broad-band reversing ‘quackers’ (a mixed frequency alarm which does not carry as far as the beeper) will be considered if currently fitted reversing beepers are identified as a noiseissue.

If wind and/or cloud conditions increase noise travel in the direction of the nearest residences the option to cease relevant activities until weather conditions improve will be considered.

Education of employees and contractors will be incorporated into company and site inductions to raise awareness of noise management measures.

A noise complaint system will be put in place. This will include the erection of a notice at the site gate, providing contact details of the site manager. Any complaints relating to noise will be recorded by the site manager and acted on promptly. A register of complaints received and actions taken will be kept.

Regular operational checks will be carried out by site personnel as required to confirm operational targets (i.e. no noise complaints) are being met.


3

Management actions will be amended as required to meet objectives. A review will also be initiated if there are major changes to the proposal, its operations or in response to any future issues raised by:

(a) the Shire of Augusta Margaret River;

(b) the DER; or

(c) Members of the public.

A copy of this management plan will be available in site offices and/or company vehicles for reference at all times.

Appendix CDust Management Plan

DUST MANAGEMENTPLAN




February 2016


Prepared by:



i

TABLE OF CONTENTS

1 INTRODUCTION........................................................................................... 1

2 DUST MANAGEMENT PLAN....................................................................... 2

Dust Management Plan - Extractive Industry – Lot 68 Tanah Marah Road – Bramley – February 2016

1

1 IntroductionThe following dust management plan will be implemented during the life of the project to ensure that any dust created by activities onsite cannot possibly reach levels that could adversely affect the environmental values of health, welfare and amenity of people and land uses in the immediate vicinity.

Potential Impacts: Specific aspects of the proposed operations that can contribute to dust include:

Earthworks during the normal operations (topsoil removal, resource stripping/excavation);

Loading and haulage; and

Wind erosion of exposed surfaces during adverse weather conditions.


2

2 Dust Management PlanManagement Actions:

Topsoil mounds will be no greater than 2 metres in height.

Stockpiles, where possible, will be limited to the anticipated cubic volume/vehicle movement for cartage on the following operating day.

Stockpiles will be located in appropriate areas to avoid prominent ridges or prevailing winds, and will include locating stockpiles within the pit area if necessary.

Stockpiles will be configured to accommodate easy access for watering/dust minimisation.

Water access road, immediate extraction area and fixed plant (screen) with water truck as required.

Use of dust suppression agents (for the purpose of reducing water use) as required.

Topsoil stockpiles will be watered and stabilised as required. Stabilisation techniques that will be considered depending on environmental conditions will included hydro-mulching and/or seeding with cover crops such as (but not limited to) cereal rye.

Minimise area impacted on and the time between extraction and rehabilitation (maximum 2 hectares open at any one time).

Education of employees and contractors to raise awareness of dust management measures.

Managing operations to minimise dust emissions during windy conditions. Timing of earthworks (daily and seasonally) will coincide with periods of low wind velocity. Operations will cease if winds are observed on site to exceed 25 knots.

Truck loads will be covered by tarpaulins during transport.

A dust complaint system will be put in place. This will included the erection of a notice at the site gate, providing contact details of the site manager. Any complaints relating to dust will be recorded by the site manager and acted on promptly.


3

Other factors that will assist in dust management include:

o Distance between occupied residences and the active pit area.

o Existing Vegetation: Vegetation along road reserves and on some adjoining properties provides a windbreak to reduce wind velocity and minimise dust mobilisation/transport in the first instance. The existing vegetation also acts as a filter to impede airborne dust leaving the site in this direction.

o Water, when required, will be sourced from existing dams or water points on the property.



(b) the DER; or



Appendix DDieback Management Plan

DIEBACK MANAGEMENTPLAN




February 2016


Prepared by:



- i -

TABLE OF CONTENTS

1 INTRODUCTION........................................................................................... 1

2 DIEBACK MANAGEMENT PLAN ................................................................ 2

Dieback Management Plan - Extractive Industry – Lot 68 Tanah Marah Road – Bramley – February 2016

1

1 IntroductionThe dieback status of the area to be excavated cannot be determined due to the lack of native vegetation/indicator species and the area is therefore classified as uninterpretable.

From a management perspective, extraction sites that have already been infected with dieback, or are classified as dieback uninterpretable, do not require quarantine of material or wash down of machinery entering or exiting the site. Such measures are generally used to protect dieback free material (a valuable resource) from becoming infected.

Nonetheless the following management plan will be implemented during the life of the project with the principle aim of managing the extractive industry operation on the property to minimise the spread of Phytophthora by mechanical means (unclean machinery).


2

2 Dieback Management PlanManagement Actions:

Existing fenced paddocks and lockable gates will be maintained and used to control unauthorized access to the excavation area.

An unauthorized entry sign will be established at the property entrance.

As far as reasonable and practicable haulage vehicles are to be cleaned of all loose external soil and plant material prior to entry to and exit fromthe extraction area.

Extractive machinery and equipment (bulldozers/front end loaders, screen, etc.) to be cleaned of all soil and plant material prior to entry to and exit from the extraction area.

Extraction site to be protected by an appropriate fence or barrier system of extraction to establish a separation zone between machinery working in the pit and haulage vehicles.

No direct water run-off shall be allowed into the naturally vegetated areasfrom the extraction area or access tracks.

No other main access tracks shall be used other than that shown on the map submitted with the original application unless approval from the Shire of Augusta Margaret River is first obtained.

The extraction area will be managed to avoid ponding of surface water where vehicle access is required.

Trucks will be loaded and covered to ensure there is no spillage of material during transport.

Prospective buyers of the gravel to be notified of the dieback status of the material i.e. dieback infected.



(b) the DER/DPaW; or



3


Appendix EDrainage Management Plan

DRAINAGE MANAGEMENTPLAN




February 2016


Prepared by:



- i -

TABLE OF CONTENTS

1 INTRODUCTION........................................................................................... 1

2 DRAINAGE MANAGEMENT PLAN.............................................................. 3

Drainage Management Plan - Extractive Industry – Lot 68 Tanah Marah Road – Bramley – February 2016

1

1 IntroductionThe proposed extraction operation will be designed, constructed and operated to avoid disruption of surface water flows, minimise erosion and ensure that potential contaminants (i.e. silty water) are not released into the environment.

To this end the following drainage (surface water/stormwater) management plan will be implemented during the life of the project with the primary aim being to ensure no erosion or escape of silty water from the excavation site or from associated stockpiles occurs.

The plan has been formulated to comply with relevant guidelines contained within the Water Resource Considerations for Extractive Industries document (DoW 2014).

Due to the limited catchment area upslope of the proposed pits, the unconsolidated nature of the soil and the proposed maximum ~2 hectare size of the active excavation area it is anticipated that any surface water not diverted away from the site will be contained easily within the confines of the embankments of the pit excavations and will in most, if not all cases, soak away through the soil profile across the pit floor or on the lower pit face.

In addition, temporary storm water detention basins will be constructed in each stage along their lowest boundaries and all storm water generated within the active cell will naturally flow towards these low points (see attached Figure). The detention basins will serve as effective silt traps in times of high surface runoff with all stormwater captured within the confines of the cell operating at the time being contained and no sediments or turbid water will be allowed to escape the site under any circumstances.

Runoff up to the 10 year 2 hour average return interval storm event from disturbed areas will be managed to prevent mobilisation of sediments and as indicated all stormwater runoff from exposed areas will initially be contained on site.

Runoff generated within the extraction area under a 10 year, 2 hour Average Recurrence Interval (ARI) Design Storm has been calculated for each ~2.0 ha stage using the Rational Equation Method (Q=ciA) using the following parameters:

c - Runoff coefficient (Soil Group A (+ disturbed) - very low runoff potential. Water moves into and through these soil materials relatively quickly (Table A5-3 – SCRC Manual for Urban Erosion and Sediment Control (2008)) = 0.37 (21-40 mm rainfall intensity in the design storm (2 hrs);


2

i - Rainfall intensity, mm/hour (10 year 2 hr ARI - BOM 2015) = 17 mm/hr;

A - Drainage area = 2.0 ha.

This equates to a peak surface water discharge of 0.034655647 m3/s or approximately 250 m3 for a 2 hour storm event. The proposed stormwater detention ponds in each cell will therefore be sized to manage at a minimum this runoff.

Overland stormwater flows generated upslope of the extraction areas will bediverted around each cell via earthen bunds constructed from topsoil stockpiles, indicative positions of which are shown in the attached figure.

Additional surface/storm water controls that will be put in place are described within the management plan below.


3

2 Drainage Management PlanManagement Actions:

It is anticipated that all surface water that collects within the excavation area will be contained easily within the confines of the embankments of the pit excavation and will in most, if not all cases, soak away through the soil profile across the pit floor or on the lower pit face.

Within each cell sand extraction will commence at the lowest point and this initial area will be deepened below normal extraction levels to form a detention basin area (min volume/cell = 250 m3) for surface water capture during the period of extraction and initial rehabilitation. The indicative positions of proposed detention basins are shown in the attached figure. Due to the permeable nature of the soil at the site the retained water is expected to drain rapidly away and be filtered through the soil profile. As a consequence no overflow is expected and no silty water will escape from excavation areas.

In cells bordering creek lines material extracted from the detention basin will be used to create a bund to further reduce the chance of turbid water escaping from the pit area.

Temporary detention ponds will be kept open until previous cells have achieved a good grass cover and cut off bunds (as required) have been created.

Based on previous experience in the area, it is considered unnecessarythat any detention or nutrient stripping ponds be installed outside of the pit areas as it is very unlikely that nutrient will be generated or that surface water will escape these areas.

Earthen cut off bunds will be put in place upslope of the operating extraction cell to any surface water away from disturbed areas. Earthen bunds will be constructed from topsoil stockpiles, indicative positions of which are shown in the attached figure.

As part of the initial rehabilitation of each cell, a series of 50 cm high “on contour” bunds will be constructed on the pit floor as extraction in each area is complete. If required the rehabilitation plan will also include “on contour” deep ripping at 2m intervals, which will aid in stormwater control by reducing flow rates and increasing downward absorption if soil with a low permeability is encountered at the base of the pit.


4

Management actions will be monitored and amended as required to meetobjectives. A review will also be initiated if there are major changes to the proposal, its operations or in response to any future issues raised by:


(b) the DER/DPaW/DoW; or



Appendix FRehabilitation Management Plan

REHABILITATION MANAGEMENTPLAN




February 2016


Prepared by:



- i -

TABLE OF CONTENTS

1 INTRODUCTION........................................................................................... 1

2 REHABILITATION MANAGEMENT PLAN................................................... 2

Rehabilitation Management Plan - Extractive Industry – Lot 68 – Tanah Marah Road – Bramley - February 2016

1

1 IntroductionRehabilitation of the excavated areas will be staged and will aim to return the land progressively back to its historical land use, livestock grazing, after the operations are complete.

The proposed finished surface plan is shown as Figure 7. The final pit floor will in most areas be defined by the underlying gravelly duplex (Forest Grove) and pale grey mottled (Mungite) soils. It is estimated that this surface is located approximately 0.5 to 2.0 m below the ground surface.

Rehabilitation Management Plan - Extractive Industry – Lot 68 – Tanah Marah Road – Bramley - February 2016

2

2 Rehabilitation Management PlanManagement Actions:

Prior to rehabilitation all excavated areas will be graded to levels and contours conforming to the adjacent unaffected areas minus the thickness of excavated material (between ~0.5 and 2.0 metres).

Deep ripping along the contour at 2 metre intervals (only required if low permeability soils encountered at base of pit).

Embankments/Cell batters will be cut to no more than 1 in 5.

Surface/storm water detention bunds along the contour will be created to a height of 0.5m.

Stockpiled topsoil from initial site preparation will be spread over the shaped surface.

Soil preparation - No specific soil preparation is anticipated. If warranted the rehabilitated pasture may be limed at 2.5T/ha. This will be determined by soil testing after extraction and initial rehabilitation is complete.

Seeding with appropriate agricultural seed mix: Revegetation of pasture grasses where required, will be carried out, preferably during autumn, using a mixture of oats, rye and clover at a rate of 60/25/5 kg/ha. Fertiliser will be applied at a rate of 240 kg/ha. Seed mixtures and fertiliser rates are indicative only and will be finalised after soil testing.

Temporary detention ponds will be kept open until previous cells have achieved a good grass cover and cut off bunds have been created.


(a) the Shire of Augusta Margaret River; or

(b) the DER.


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