Lot M1822 Horton Road Rehabilita tion Plan...cessed by g . Associates P AND BUF and Eileen by Ron Ha...

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Lot M1822 HHorton Road – Rehabilitation Plan

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TABLE OF CONTENTS

1 Introduction ............................................................................................................................. 9

1.1 Location ................................................................................................................................... 9

1.2 Ownership ............................................................................................................................... 9

1.3 Proponent Background ........................................................................................................... 9

1.3.1 Proponent Contact Details ............................................................................................ 10

2 Nearest Receptors and Buffer Distance ................................................................................ 11

2.1 Closest Residence.................................................................................................................. 11

2.2 Buffer Distance ...................................................................................................................... 11

3 Gravel Extraction Methodology ............................................................................................ 12

3.1 Extraction Area ...................................................................................................................... 12

3.2 Staging and Volume of Extraction ......................................................................................... 12

3.3 Duration of Activity ............................................................................................................... 12

3.4 Process .................................................................................................................................. 13

3.5 Plant List ................................................................................................................................ 13

3.6 Traffic Volume ....................................................................................................................... 13

4 Site Infrastructure and Management .................................................................................... 14

4.1 Site Office .............................................................................................................................. 14

4.2 Ablution Block ....................................................................................................................... 14

4.3 Power Supply ........................................................................................................................ 14

4.4 Fuel Supply ............................................................................................................................ 14

4.5 Water Source ........................................................................................................................ 14

5 Rehabilitation Plan ................................................................................................................ 15

5.1 Objective ............................................................................................................................... 15

5.2 Surrounding Land Uses ......................................................................................................... 15

5.3 Gravel Extraction Methodology ............................................................................................ 15

5.3.1 Removal of Top Soil....................................................................................................... 15

5.3.2 Removal of Gravel ......................................................................................................... 16

5.3.3 Slope Stability ................................................................................................................ 16

5.3.4 Progressive Rehabilitation ............................................................................................ 16

5.3.5 Erosion Control ............................................................................................................. 16



5.3.6 Decommissioning Activity ............................................................................................. 16

5.3.7 Maintenance of Rehabilitated Area .............................................................................. 17

5.3.8 Proposed After Use ....................................................................................................... 17

6 Completion and Handover .................................................................................................... 18

7 References ............................................................................................................................. 19

8 Drawings ................................................................................................................................ 21



DRAWINGS

Drawing 1. Location Sketch ............................................................................................................. 22

Drawing 3. Proposed Area for Gravel Extraction ............................................................................ 23

Drawing 5. Sensitive Receptors Near the Lot .................................................................................. 24

Drawing 6. Concept Extraction and Rehabilitation Cross Section ................................................... 25

Drawing 13. Concept Plan for Stockpile Location ............................................................................. 26

TABLES

Table 1: GPS Location of the Lot .......................................................................................................... 9

Table 2: Volume of Gravel Extraction per Stage ................................................................................ 12

Table 3: Operational Duration per Stage ........................................................................................... 12

Table 4: Plant List ............................................................................................................................... 13



ACRONYMS

EPA Environmental Protection Authority

Proponent Capital Recycling

WA Western Australia

UNITS OF MEASURE

ha Hectare

km Kilometre

m Metre

mm Millimetre

m2 Metre Square

m3 Cubic Metre



1 INTRODUCTION Capital Recycling (Proponent) wishes to extract gravel from the Lot M1822 and replace the

excavated area with inert fill. The extraction will be carried out in two stages. First stage will see

gravel extraction on the western side of the valley. Groundwater, surface water, flora and fauna

investigations have been carried out by the previous landowner in 2008 on the western section of

the Lot to determine the suitability of the Lot for establishing a composting facility. Plant and

equipment used for extraction and screening of gravel are the same as that used for composting.

The investigation reports have been referred in assessing the environmental impacts for to the

proposed gravel extraction.

The end use of the extracted gravel will comprise of the following:

Serve as subgrade on 324 Horton Road, Woottating for developing a composting facility,

Upgrade of sections of Horton Road, Carter Road and private property, and

Sale of screened gravel for use as subgrade or landscaping by various end users.

1.1 LOCATION

The proposed facility will be located in the Shire of Northam approximately 55 km east of Perth on

Lot M1822 Horton Rd Woottating, WA, 6562. The Lot can also be located by GPS as described in the

Table below (Error! Reference source not found.).

Table 1: GPS Location of the Lot

LATITUDE AND LONGITUDE UTM ZONE 50 COORDINATES (GDA94)

Latitude Longitude Easting Northing

31o50’44”S 116o21’19”E 439,000 6,476,500

1.2 OWNERSHIP The Lot is registered under Gravel Pit Pty Ltd of 34 Jackson Street, Bayswater owned by the

Proponent. The Certificate of Title is on Folio 539 in Volume 1034.

1.3 PROPONENT BACKGROUND

Beginning operation in 1996 as a drainage and earthmoving operation, Capital Recycling soon moved

into demolition work. From a number of years in this arena, the company was well positioned to

recognise the significant amount of waste generated in the construction industry and the potential

this waste had as a reusable commodity.

The corporate philosophy is one of innovation, attention to detail and the pursuit of excellence in all

aspects of concrete waste reclamation. Capital Recycling focuses on efficient materials processing.



The maintenance of a clean, safe and innovative work environment contribute to the company’s

reputation in the industrial waste reclamation industry.

Today the proponent produces a range of high quality, recycled products including crushed concrete

road-base, track and drainage material as well as fill sand. On the service side, the proponent offers

selected building waste dumping facilities, on-site crushing and screening, selected building waste

transportation and site remediation.

1.3.1 Proponent Contact Details

Contact Person: Ray Gullotto Dave Markham

Position: Managing Director General Manager

Telephone: (08) 9279 4599 (08) 9279 4599

Fax: (08) 9279 4588 (08) 9279 4588

Email: [email protected] [email protected]

Postal Address: 32- 34 Jackson Street, Bayswater 6053 32- 34 Jackson Street, Bayswater 6053

Website: www.capitalrecycling.com.au www.capitalrecycling.com.au

mailto:[email protected]

mailto:[email protected]

http://www.capitalrecycling.com.au/

http://www.capitalrecycling.com.au/

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4 SITE INFRASTRUCTURE AND MANAGEMENT

4.1 SITE OFFICE

An existing building on the western end of the Lot will be used as an office for onsite book keeping

and staff contact point.

4.2 ABLUTION BLOCK

A permanent ablution block connected to a septic system and a leach drain will be installed after

obtaining approval from the Shire of Northam.

.

4.3 POWER SUPPLY

A portable diesel generator will be provided onsite for power supply to office during operating

periods. This would be rarely used as the site staff would be operating plant most of the time.

4.4 FUEL SUPPLY No fuel will be stored onsite. Refilling of plant, equipment and generator will be done by a mobile

refuelling unit.

4.5 WATER SOURCE Water will be pumped directly into a water truck from the two dams on site. Dams are located on

the eastern side of the watercourse and water will be used for dust suppression. Additional water

requirement will be sourced locally if need arises.



5 REHABILITATION PLAN

5.1 OBJECTIVE

The objective of the rehabilitation plan is to restore the excavated area to a safe and stable landform

to the original ground levels. The proponent will rehabilitate the site to a landform suitable to be

used as a crop land or farmland. The proposed rehabilitation plan has been prepared to be

consistent with the Shire of Northam Extractive Industries Local Law 2008. A schematic diagram for

the proposed excavation and rehabilitation cross section is enclosed as Drawing 6.

5.2 SURROUNDING LAND USES

The Lot is in a rural area and all of the surrounding properties are used for cropping, sheep or cattle

grazing.

Immediate neighbours to the Lot are:

The property to the north known as 284 Wariin Road is owned by Alfred and Eileen Boase

and is a 284 ha grazing property,

To the east a 225 ha grazing property is known as 598 Wariin Road and is owned by Peter

and Jacqueline Carter,

To the south the Curtis brothers own the property and are proposing the establishment of a

composting facility,

To the west are several properties owned by Ron Hawkins company Quintal. The property

adjacent to the west boundary is known as 4 Great Eastern Highway. These properties are

also used for grazing, and

To the south west is a 40 ha property owned by Maurice and Irene Hoyle and used for

greenhouse tomato production. The Hoyle residence is 1.2 km south west of the proposed

development.

Further afield is the BGC quarry approximately 2.5 km to the south and a Prison approximately 2 km

to the north west. There is also an intensive agriculture facility with large greenhouses

approximately 1.5 km to the south west of the Lot. This property is owned by Maurice and Irene

Hoyle. All surrounding properties have sporadic pockets of remnant vegetation.

5.3 GRAVEL EXTRACTION METHODOLOGY

5.3.1 Removal of Top Soil

Top soil will be stripped to a depth of 100 mm within the Stage 1 excavation area using a grader. Any

weed infested top soil would be stockpiled separately and later buried during rehabilitation activity.

The location of the buried weed infested top soil will be recorded and made available for future

reference. The site will be maintained during the life of the project to remain weed free and suitable

for cropping. The stripped stockpile will be located adjacent to the excavation area. A concept plan

for stockpile location has been enclosed as Drawing 13. Stripped top soil during site preparation will



be spread directly onto progressively backfilled landform at a depth of 100 mm. Stockpiled top soil

will be used for rehabilitation within 2 years to retain the soil’s biodata.

5.3.2 Removal of Gravel

Gravel is anticipated to a typical depth of 2 m across Stage 1 area. The gravel will be extracted using

a 20 tonne or 30 tonne excavator and stockpiled within the excavation area. The extracted gravel

will be screened to different grades and individually stockpiled within the excavation area. The

screened stockpile will be loaded onto trucks using a front end loader and transported off site for

various end uses.

5.3.3 Slope Stability

Across the base of the pit the excavation will be carried out at a maximum 1:2.5 slope. An access

ramp will developed at one corner for truck access into the excavated area. The access ramps will

be maintained at a maximum slope of 1:4 and will have a minimum track width of 4 m. The internal

side batters of the pit will have a maximum slope of 1:2.5 and are considered to be stable. Any

unstable section identified on the internal batter during the excavation activity will be reinstated by

removing loose material and reducing the slope.

5.3.4 Progressive Rehabilitation

The restoration of the excavation area will be undertaken progressively. The excavated area will be

backfilled using inert fill to return the landform to original levels. The inert fill will comprise of clayey

soil, overburden and top soils collected from various earthworks sites across Perth, WA. The

backfilled levels will be 100 mm below the existing landform survey levels. The backfill will be

compacted in 300 mm layers to 95% standard compaction using a pad foot roller. Top soil will be

spread directly over the backfilled landform at a depth of 100 mm to achieve the levels of the

original landform.

5.3.5 Erosion Control

Erosion from stormwater runoff is unlikely to be a problem on the finished surface as the proposed

landform will follow the natural gentle slope towards the watercourse. The finished surface will be

left loose and slightly undulating to assist in reduction of surface flow rate and increase the seepage

of water into the ground. The erosion control during gravel extraction activity is included in the

Water Management Plan.

5.3.6 Decommissioning Activity

The existing building serving as site office will be retained after the excavation activities. The

decommissioning activity will involve the following:

Ablution facility and any mobile infrastructure such as plant and equipment will be removed

from the site to another operation centre,

Any remaining stockpiles unsuitable as top soil would be removed from the rehabilitated

site,

Exploratory holes will be securely plugged using backfill and made safe,



All temporary fences and table drains will be removed to bring the site to original condition,

and

Disturbed surfaces outside the excavation area such as roads and operations areas will be

rehabilitated by ripping the surface, spreading with gravel and topsoil.

5.3.7 Maintenance of Rehabilitated Area

The progressively rehabilitated areas will be checked for free draining and non-eroding ability. Any

ponding or eroding surface will be reinstated by placing gravel or top soil. During excavation and

rehabilitation phases the remainder of the Lot will be used for cropping and managed as a crop farm.

The maintenance activity for a rehabilitated area will be conducted for a period of 12 months.

5.3.8 Proposed After Use

The gravel extraction is limited to cleared area and hence no rehabilitation of site by planting of

trees and shrubs is anticipated. The restored landform will be available for use as grazing or

cropping. The progressive rehabilitation of the excavated area will make the land available for

desired end use during the period of the proposal.

If any remnant vegetation outside the cleared area is damaged by the activities of the extractive

industry, it will be replaced by indigenous planting as required by the Local Government. If it is

deemed that no vegetation has been damaged due to the activities of the extractive industry, no

replacement of remnant vegetation is required. The list of plants suitable for replacement will be the

plant families most frequently recorded during the flora survey and are:

• Cyperaceae (common name – Sedge Family),

• Proteaceae (common name – Banksia Family),

• Leptospermum Erubescens (common name - Roadside Teatree),

• Eucalyptus Marginata (common name - Jarrah) , and

• Corymbia Calophyla (common name - Marri).



6 COMPLETION AND HANDOVER When sufficient evidence can be provided that the rehabilitated area is stable and free draining, the

proponent may seek to complete all obligations by submitting to the Shire of Northam a certified

statement of completion to the effect that site rehabilitation work has been completed and further

environmental management of the premises is not required.

Generally, this statement will be expected to show that:

Rehabilitated levels are consistent with original landform survey levels,

No evidence of ponding or erosion, and

All excess material has been removed from site.

Once the Shire of Northam has approved the certified statement of completion, the proponent can

cease the maintenance of the site.



7 REFERENCES Category 12: Extractive Industries Sand and Limestone Extraction from Guidance Statement No 3,

Separation Distance between Industrial and Sensitive Land Uses by The Environmental Protection

Authority, WA.

Extractive Industries Local Law 2008, Shire of Northam, WA.



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8 DRAWINGS

Bowman and Associates Pty LtdProject Location Drawing Title

Date Design Drawing Approved Client Drawing Revision Size

Gravel Extraction & Rehabilitation Woottating, WA

PA PA Capital Recycling

Location Sketch

CR-01 1 A3

ABN 22 112 399 514

PO Box 2059Rossmoyne WA 6148

Phone: 0402 373 582Fax: 9457 6277

24 August 2012 BB

DRAWING 1: LOCATION SKETCH





Proposed Area for Gravel Extraction

CR-03 1 A3

ABN 22 112 399 514


Phone: 0402 373 582

31 October 2012 BB

DRAWING 3: PROPOSED AREA FOR GRAVEL EXTRACTION





Sensitive Receptors Near the Lot

CR-05 1 A3

ABN 22 112 399 514


Phone: 0402 373 582Fax: 9457 6277

28 August 2012 BB

DRAWING 5: SENSITIVE RECEPTORS NEAR THE LOT

Top Soil(to be removed to a depth of 100 mm)

Extent ofExcavation Undisturbed Subgrade

Gravel

Stormwater Flow

Top Soil (reapplied to depth of 100mm)

Extent ofFill

Stormwater Flow

Original SurfaceOriginal Surface

New SurfaceNew Surface

Undisturbed Subgrade

Backfill

Temporary Drain Temporary Drain

DRAWING 6: PROPOSED EXCAVATION AND REHABILITATION SECTIION

Bowman & Associates Pty Ltd Project

Date Design Drawing Approved

Location

Client

Title

DrawingScale Revision Size

ABN 22 112 399 514PO Box 2059ROSSMOYNEWA 6148

Tel:(08) 9457 5899Mob: 0402 373 582

CR-BA-06Not to Scale

Proposed Excavation and Rehabilitation SectionGravel Extraction

22 Oct 2012 BB PA BB

Lot M1822 Horton Road Woottating

Shire of Northam 1 A3

Maximum 1:2.5 Slope

Bowman & Associates Pty Ltd Project

Date Design Drawing Approved

Location

Client

Title

DrawingScale Revision Size

ABN 22 112 399 514PO Box 2059ROSSMOYNEWA 6148

Tel:(08) 9457 5899Mob: 0402 373 582

CR-BA-13Not to Scale

Concept Stockpile LocationsGravel Extraction

22 Oct 2012 BB PA BB

Lot M1822 Horton Road Woottating

Shire of Northam 1 A3

Initial Excavation Area

Excavated Gravel

Scre

ened

Gra

vel

Excavation Limit

Top Soil Stockpile

DRAWING 13: CONCEPT STOCKPILE LOCATION

S

W E

N

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