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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
Environmental Service and Design Pty Ltd – PAF#4561
Environmental Effects Report
Alan Summers Transport Pty Ltd
Extension of Operations
Summers Sand and Gravel Pit, Elphinstones Road, Calder
November 2012
Prepared by Environmental Service and Design Pty Ltd
ABN 97 107 517 144 ACN 107 517 144
Office
14 Cattley Street
Burnie TAS 7320
Phone: (03) 6431 2999
Fax : (03) 6431 2933
www.esandd.com.au
Postal
PO Box 651
Burnie TAS 7320
ProjectNo. 4561
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
Environmental Service and Design Pty Ltd – PAF#4561
1.0 Document Control
Prepared & Published by: ES&D
Version: Draft 2
File: 4561
Contact: Ian Ferris
Phone No: (03) 6431 2999
Prepared For: Allan Summers Transport Pty Ltd
Version: Reviewed/Approved By Date
Draft 1 Ian Ferris 01/042011
Draft 2 Mitchell Atkinson 26/7/2012
Review 1 Ian Ferris Sept 2012
Final Rod Cooper Nov 2012
This report has been prepared, based on information generated by Environmental Service and Design Pty Ltd from a wide
range of sources. If you believe that Environmental Service and Design Pty Ltd has misrepresented or overlooked any
relevant information, it is your responsibility to bring this to the attention of Environmental Service and Design Pty Ltd
before implementing any of the report’s recommendations.
In preparing this report, we have relied on information supplied to Environmental Service and Design Pty Ltd, which, where
reasonable, Environmental Service and Design Pty Ltd has assumed to be correct. Whilst all reasonable efforts have been
made to substantiate such information, no responsibility will be accepted if the information is incorrect or inaccurate.
This report is prepared solely for the use of the client to whom it is addressed and Environmental Service and Design Pty
Ltd will not accept any responsibility for third parties.
In the event that any advice or other services rendered by Environmental Service and Design Pty Ltd constitute a supply of
services to a consumer under the Trade Practices Act 1974 (as amended), then Environmental Service and Design Pty Ltd’s
liability for any breach of any conditions or warranties implied under the Act shall not be excluded but will be limited to the
cost of having the advice or services supplied again.
Nothing in this Disclaimer affects any rights or remedies to which you may be entitled under the Trade Practices Act 1974
(as amended).
Each paragraph of this disclaimer shall be deemed to be separate and severable from each other. If any paragraph is found
to be illegal, prohibited or unenforceable, then this shall not invalidate any other paragraphs
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
Environmental Service and Design Pty Ltd – PAF#4561
Environmental Effects Report: Alan Summers Transport Pty Ltd
Extension of Operations, Calder Sand
2.0 Summary
This Environmental Effects Report (EER) has been prepared to support the Development Application
by Summers Transport to the Waratah Wynyard Council (WWC) and the Tasmania Department of
Primary Industries, Parks, Water and Environment (DPIPWE).
The proposal involves increasing pit production (gravel and sand) at an existing pit site from <5,000
m3 to 15,000 m
3 of material per year. The activity is a Level 2 Activity as defined by Schedule 2 of
the Environmental Management and Pollution Control Act 1994 (EMPCA).
The EER is required for Level 2 Activities to describe the proposed operations, potential impacts and
proposed management measures. The EER aims to provide this information to the decision-making
authorities, the Board of Environmental Management and Pollution Control (‘the Board’), the
Council, and the general public.
A permit application for the changes to operation will be considered by WWC in accordance with
Section 57 of the Land Use and Planning Approvals Act 1993 (LUPAA).
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
Environmental Service and Design Pty Ltd – PAF#4561
Table of Contents
1.0 Document Control ....................................................................................................................... 1
2.0 Summary ..................................................................................................................................... 2
3.0 Proponent Information ................................................................................................................ 5
4.0 Proposal Description ................................................................................................................... 6
4.1 Project Description .................................................................................................................. 6
4.2 Project area .............................................................................................................................. 7
4.3 Land Tenure ............................................................................................................................ 8
4.4 Map and Site Plan ................................................................................................................... 9
4.5 Rationale and Alternatives ...................................................................................................... 9
5.0 Potential environmental effects ................................................................................................... 9
5.1 Flora and Fauna ....................................................................................................................... 9
5.2 Rivers, creeks and estuaries .................................................................................................. 10
5.3 Air Emissions ........................................................................................................................ 12
5.4 Liquid Effluent ...................................................................................................................... 13
5.5 Solid Wastes .......................................................................................................................... 13
5.6 Noise emissions .................................................................................................................... 13
5.7 Transport impacts .................................................................................................................. 13
5.8 Dangerous substances and chemicals ................................................................................... 14
5.9 Site contamination ................................................................................................................ 14
5.10 Sustainability and climate change ......................................................................................... 14
5.11 Rehabilitation ........................................................................................................................ 14
6.0 Management and Commitments ............................................................................................... 15
7.0 Public consultation .................................................................................................................... 16
8.0 Appendices: ............................................................................................................................... 16
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
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List of Figures
Figure 1: Alan Summers Transport, sand extraction pit location plan.................................................... 5
Figure 2 Mining lease area in black with nearest residence in red ........................................................ 8
Figure 3 Mining Lease Plan .................................................................................................................... 9
Figure 4: Drainage lines ........................................................................................................................ 12
List of Figures
Table 1: Table of commitments ............................................................................................................ 15
Appendices
APPENDIX 1 FLORA AND FAUNA HABITAT SURVEY.
APPENDIX 2 WEED MANAGEMENT AND HYGIENE CONTROL PLAN.
APPENDIX 3 PHYTOPHTHORA MANAGEMENT PLAN.
APPENDIX 4 MINING PLAN.
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
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3.0 Proponent Information
Proponent: Allan Summers Transport ABN 67130881097
Site Address: Elphinstones Road, off Calder Road, Calder
Postal Address: 320 Calder Rd, Wynyard, TAS, 7325
Contact person: D Summers or P Kay
Site Phone: (03) 6442 1386
PC Kay and D R Summers operate as Allan Summers Transport (TAS 21434B), which is a supplier of
screened and raw products (principally sand and gravel), from their operations on Elphinstones Road,
Calder (Figure 1). The operation supplies materials to concrete, masonry, landscape and construction
companies, as well as general bulk haulage.
Figure 1: Alan Summers Transport, sand extraction pit location plan
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
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4.0 Proposal Description
4.1 Project Description
It is proposed that an existing sand extraction pit, previously operated as an EPA Level 1 activity to
obtain gravel and sand, be extended, sequentially and properly developed. The source material will
provide improved quality sand and screened aggregates of various grades for the concrete supply,
brick and masonry manufacturing and general construction industry when screened.
The deposit has been explored using excavator test pits. The exploration revealed that the deposit is
highly variable in particle size distribution. This is considered beneficial as a greater number of
material types can be supplied, but it means that the lateral site disturbance potential is difficult to
minimise. The mapped extent of the deposit covers only part of the entire leased area.
The deposit covers an area of approximately 8.7 hectares, approximately half of which has been
previously worked. Assuming an average depth of the deposit of 4m (unworked at 6m depth of
extractable material and worked at 2m) the deposit contains in the order of 350,000 cubic metres of
material. Assuming that only 60% is worth extracting or otherwise available, a lifetime of 14 years is
envisaged at maximum production.
Because of the nature of the deposit, the extraction process is intended to operate with shallow (3-4m)
benches in a number of areas throughout the site, each providing varying materials. With a screening
plant on site, the operation is to extract up to 15,000 cubic metres per year.
The mobile screening plant (no crushing or other process is required) will generally be located in the
central portion of the existing pit visible in Figure 2. This is 800m away from the nearest residence to
the south (figure 2). There is a ridge between the quarry and the nearest residence that has a dense
group of trees growing on it that reduce noise and visual impacts (figure 2).
Rehabilitation of the pits will be sequential, with existing topsoil removed, stockpiled and replaced as
each area is completed. Runoff will be contained and reused as dust control, or fed through silt dams
and associated systems to control runoff quality. Access is through existing roadways and tracks.
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Environmental Service and Design Pty Ltd – PAF#4561
The extended operations would officially commence on receipt of all necessary permits; the project is
forecast to operate for 15 years.
Operating hours will be in accordance with the Quarry Code of Practice; “Operating hours of quarries
in the vicinity of residential premises, to 0700 to 1900 hours, Mondays to Fridays and 0800 to 1600
hours Saturdays”. 1
The rate of production will be will be variable as production will be performed on an as needs basis.
Maximum production rate will be 15,000 m3 per year
4.2 Project area
The site is located on Elphinstones Road, off Calder Road, some 14 km south of Wynyard (Figure 1).
There are no wetlands or waterways near the project area and the nearest residence is approximately
700 m away from the edge of the proposed active area (Figure 2). The residence is shielded by
approximately 500 m of vegetation with some slight elevation between the centre of the mining lease
to the location of the residence.
Historical and current use of the site is for sand and gravel extraction
1 Commitment: Operating hours will abide by the Quarry code of Practice; “Operating hours of quarries in the
vicinity of residential premises, to 0700 to 1900 hours, Mondays to Fridays and 0800 to 1600 hours Saturdays”.
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
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Figure 2 Mining lease area in black with nearest residence in red
4.3 Land Tenure
Summers Sand and Gravel Pit comprises land described as; PID 2532676, Crown land controlled by
Forestry Tasmania, and is located at the end of Elphinstones Road, off Calder Road, Calder, via
Wynyard. Mining leases numbered 45M/1975 of 34 hectares, and 11M/2007 of 4 hectares are
registered in the names of Kay PC and Summers DR indicated in Figure 3 below.
Accessed (solely) through Elphinstones Road, Summers Pit is a small pit formerly operated by
Waratah Wynyard Council, on Mining Lease 8M/1999. This pit is largely depleted, and has limited
available reserves. No rehabilitation by Council has apparently occurred in this pit area. It is
understood that no council extraction has occurred for many years.
8M/1999
11M/2007
45M/1975
Screening plant/centre of pit
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Environmental Service and Design Pty Ltd – PAF#4561
Figure 3 Mining Lease Plan
4.4 Map and Site Plan
Refer to Figure 1 for a general location map and Figure 2 for the area of the proposal, found in mining
leases 45M/1975, and 11M/2007, indicated in Figure 3. A mining plan can be found as Appendix 4,
which covers rehabilitation of the site.
4.5 Rationale and Alternatives
The deposit provides a valuable resource of materials to the growing marketplace. The deposit is
located on an environmentally degraded site. No alternatives are considered, although there are other
deposits in the area. Alternative routes are restricted by topography, tenure and available roads.
5.0 Potential environmental effects
5.1 Flora and Fauna
The property is native forest, partially harvested and under regrowth. Following many years of
selective and coupe logging, very few large trees remain, and the environment is subsequently
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degraded. The vegetation surrounding the pit site is largely young eucalypt, with undergrowth of
various pioneer regrowth species e.g. Silver Wattle, Dogwood, and bracken fern. Refer to Appendix 1
vegetation report “SUMMERS QUARRY, ELPHINSTONE ROAD, CALDER - FLORA and
FAUNA HABITAT SURVEY” of June 2011.
Native vegetation will be disturbed/cleared during the process of extracting the sand and gravel from
the site. The total area of vegetation that will be cleared is 10.8 ha, although 9 ha have already been
cleared previously. This additional clearing will occur over time and be progressively rehabilitated as
per the mining plan (Appendix 4).
The site does not appear to have any record of threatened species or habitats, RAMSAR wetlands, or
nationally threatened species and communities, nationally listed migratory species, Commonwealth
Environment Protection and Biodiversity Conservation Act 1999.
The presence of; Tasmanian Wedge-Tail Eagles (Aquila audax fleayi), Tasmanian Devils
(Sarcophilus harrisii) and Spotted Tail Quolls (Dasyurus maculates) is possible, but these are
roaming species and unlikely to reside near or be impacted by this localized activity. The site has been
selectively logged and quarried in part. No nest sites or other indicators were observed, apart from
Devil scats within the pit.
Details of the proposed management processes for weeds and Phytophthora cinnamomi are found in
Appendix 3.
The extension of the quarry within mining lease 45M/1975 will only go towards the northern
boundary to where vegetation has recently been cleared. The pit in mining lease 11M/2007 has much
more scope for expansion.
A site drainage plan and rehabilitation plan are incorporated into the Mining Plan (Appendix 4)
5.2 Rivers, creeks and estuaries
Typically for undulating hilltop sites, there are stormwater exit points on the site at a number of
locations. All issue points will be controlled by drains and fed through silt dams to ensure that runoff
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is of satisfactory quality.2 No further infrastructure is required for the site due to water use remaining
constant.
Potential impacts to the Inglis River are considered minor due to separation distances of over 200 m to
the north west at its closet point, but will be addressed by provision of drainage control, silt traps, and
swamp areas which are expanded in the mining plan (Appendix 4).
The creeks in the local area have the potential to be a foraging ground for the giant fresh water
crayfish (Astocopsis gouldi). Measures to protect the creeks for the crayfish include the use of silt
traps and avoiding wet areas surrounding watercourses.
Figure 4 below shows the drainage regime, and Figure 6 in the Mining Plan indicates the areas not
proposed for disturbance.
2 Commitment: All issue points will be controlled by drains and fed through silt dams and associated swamps to
ensure that runoff is of satisfactory quality
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
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Figure 4: Drainage lines
5.3 Air Emissions
The proposal has the potential to produce dust and minor vehicle exhaust emissions. Dust from the
trucks and the screener will provide most of the potential emissions. Truck dust emission management
involves use of a water truck where necessary3. Drivers will be instructed to reduce speed when
driving past residential areas, although road conditions generally result in low speeds. No complaints
have been received relating to dust produced by the site, even though production has occurred for
many years. Screener emissions are negligible as the source material is generally moist.
Note: The nearest residence is approximately 700 metres from the project area; there are a total of 4
residences on/ near Elphinstones Road who may potentially be affected by dust emissions. The owner
of the quarry has visited all four residences to discuss the project and gave them his contact details in
3 Commitment: effective dust control strategies throughout the site including use of a water cart on traffic areas,
water sprays on processing equipment whenever necessary will be implemented.
Silt traps and drainage lines
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order to maintain good relationships with the occupants. Regular communications between the owner
and the occupants will ensure that any potential dust emissions emanating from the quarry and
impacting upon their properties will be promptly managed and addressed.
5.4 Liquid Effluent
The only liquid waste that could be produced is oil and fuel spills, although these are stored in bunds.
No permanent toilet facility is proposed for the site. Chemical toilet facilities will be provided as
required during any periods of high activity. Spillage kits are available to manage oil and fuel spills.4
5.5 Solid Wastes
The topsoil /overburden materials that are accrued through the operations will be kept on the site and
used progressively for rehabilitation as needed. Other solid waste including general litter waste such
as paper, plastic, 5 and waste metals will be removed from site as produced, for proper disposal6.
5.6 Noise emissions
The two principle sources of noise emissions from the site are the screening plant and loader/truck
movements. The trucks operate on public roads and currently meet required noise emission levels.
The screening plant is located in the centre of the operation (see Figure 2) and is more than 350m
from any residences. No blasting or drilling occurs on site.
Note: As per Section 5.3, the nearest residence is approximately 700 metres from the project area;
there are a total of 4 residences on/ near Elphinstones Road who may potentially be affected by noise
emissions. The owner of the quarry has visited all four residences to discuss the project and gave
them his contact details in order to maintain good relationships with the occupants. Regular
communications between the owner and the occupants will ensure that any potential noise emissions
emanating from the quarry and impacting upon their properties will be promptly managed and
addressed.
5.7 Transport impacts
The number of truck movements (inwards and outwards) will be 10 per day average, at maximum
level of production, with a maximum expected of 20 per day. The operation is small, and has limited
scope for increase. Note that current truck movements equate to approximately 4 movements per day.
4 Commitment: A Spill kit will be available for use in controlling fuel or oil spillages.
5 Commitment: Solid litter waste will be removed from site for proper disposal on a daily basis
6 Commitment: Waste metals will be removed from site for proper disposal
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5.8 Dangerous substances and chemicals
The only dangerous chemical in use for the duration of the operation is diesel fuel. Fuel is not stored
on site.7
5.9 Site contamination
Hydrocarbon contamination is the only significant source of contamination. Any spills will be
controlled (refer to 5.2 above), and residue removed to appropriate disposal. No storage of
Hydrocarbon on site, and any bought on site will be contained within a bund.
5.10 Sustainability and climate change
The site will be maintaining a similar level of production to that previously, and will not have an
increase in greenhouse gas emission. The operation will not be adversely affected by climate change.
The current climate in the area was reviewed. Rainfall is approximately 1040 mm per annum. Wind
direction is predominantly from a westerly direction, with north- and south westerly wind
subdominant.
5.11 Rehabilitation
Revegetation of the final surface has not been detail-designed, as final conditions and requirements
for the site may alter. It is intended that the final site is similar to the existing site with a surrounding
vegetation slope. The soil layer will be retained in stockpiles and progressively used on the
boundaries of excavations and fully replaced at completion. 8 The Mining Plan details the process
and areas to be rehabilitated.
The pits will be progressively rehabilitated as appropriate to allow regeneration to take place in a
controlled manner and to minimize damage to the environment.9
7 Commitment: No fuel will be stored on site.
8 Commitment: The soil layer will be retained in stockpiles and progressively used on the boundaries of
excavations and fully replaced at completion 9 Commitment: The pits will be progressively rehabilitated as appropriate to allow regeneration to take place in
a controlled manner and to minimize damage to the environment
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6.0 Management and Commitments
Table 1: Table of Commitments
Subject Commitment Forecast completion
Operating Hours Commitment 1 (p7)
Operating hours will abide by the Quarry Code
of Practice; “Operating hours of quarries in the
vicinity of residential premises, to 0700 to 1900
hours, Mondays to Fridays and 0800 to 1600
hours Saturdays.
PC Kay - Ongoing
Stormwater -
Runoff
Commitment 2 (p11)
All issue points will be controlled by drains and
fed through silt dams and associated swamps to
ensure that runoff is of satisfactory quality.
PC Kay - Ongoing
Air Emissions -
Dust
Commitment 3 (p12)
Effective dust control strategies throughout the
site including use of a water cart on traffic areas,
water sprays on processing equipment whenever
necessary will be implemented.
PC Kay - Ongoing
Solid Wastes -
Control
Commitment 4 (p13)
A Spill kit will be available for use in controlling
fuel or oil spillages.
PC Kay - Ongoing
Solid Wastes -
Disposal
Commitment 5 (p13)
Solid litter waste will be removed from site for
proper disposal on a daily basis.
PC Kay - Ongoing
Solid Wastes -
Disposal
Commitment 6 (p13)
Waste metals will be removed from site for
proper disposal
PC Kay - Ongoing
Solid Wastes -
Storage
Commitment 7 (p14)
No fuel will be stored on site
PC Kay - Ongoing
Site Closure Commitment 8 (p14)
The soil layer will be retained in stockpiles and
progressively used on the boundaries of
excavations and fully replaced at completion.
PC Kay - Ongoing and at
completion
Site Closure Commitment 9 (p14)
The pits will be progressively rehabilitated as
appropriate to allow regeneration to take place in
a controlled manner and to minimize damage to
the environment..
PC Kay - Ongoing and at
completion
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
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7.0 Public consultation
No formal public consultation has been completed prior to the submission of this Environmental
Effects Report. An application for a Planning Permit is required to be submitted to the Waratah
Wynyard Council. Part of this application involves a public notification and input process.
8.0 Appendices:
Appendix 1 “SUMMERS QUARRY, ELPHINSTONE ROAD, CALDER - FLORA and FAUNA
HABITAT SURVEY” of June 2011.
Appendix 2 Weed Management and Hygiene Plan
Appendix 3 Phytophthora Management Plan
Appendix 4 Mining Plan
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Appendix 1 - FLORA and FAUNA HABITAT SURVEY
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Alan Summers Transport Pty Ltd Extension of Operations – Oct 2012
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SUMMERS QUARRY, ELPHINSTONE ROAD, CALDER
FLORA and FAUNA HABITAT SURVEY
For ENVIRONMENTAL SERVICE & DESIGN PTY LTD
5th
June 2011
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Environmental Service and Design Pty Ltd – PAF#4561
PHILIP MILNER LANDSCAPE CONSULTANT PTY LTD
144 Allisons Road, LOWER BARRINGTON
POSTAL: C/O Post Office, BARRINGTON, 7306
TASMANIA
Mobile: 0417 052 605
Home Phone: (03) 6492 3201
Email: [email protected] A.B.N.No. 32 068 906 258
Introduction:
This survey covers two adjacent mining leases 45M/1975 and 11M/2007 which are located within
state forest in the Calder Hills approximately 20km to the south of Wynyard. Both leases are currently
granted to Summers Transport Pty Ltd which quarries and grades sands and gravels principally for the
local building and landscape industries.
The Company is making application to the Environment Protection Authority to extend the existing
open pit and quarry.
Objectives: The objectives of this survey were to;
Undertake a desktop survey to confirm the known biological records and the natural values
present within the two lots and within 5,000 metres of the site.
Undertake a field survey of the two mining leases to observe and record the natural values
present including the vegetation types and plant communities, the flora and in particular any
threatened species and potential habitat for species of threatened fauna.
Determine the possible impacts of the proposed quarry extensions on the natural values
present and make recommendations on how those impacts can be minimized.
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Location of Study Area:
MAP REF: Tasmap 1:25,000 Calder, Sheet No.3845
BIOREGION: King
STUDY AREA REFERENCE POINT: 383484E – 5454826N (GDA94)
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Site Location:
FIGURE 1. Location of quarry and study area.
Site Description:
The present quarry and pit workings are located on a low gravelly ridgeline which is bounded by two
gullies and small creek-lines which flow into the nearby Inglis River. The Inglis River is located to
the immediate west of the site and within a deeper valley. The area is well forested but much of it has
been subject to forestry activities over many years. To the east and along Calder Road is mainly
agricultural land, and to the south, forestry plantations.
A number of other quarries and gravel pits are located on ridgelines to the north of this site and
throughout the Calder Hills.
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FIGURE 2: Boundaries of mining leases and of this survey. 45M/1975 and 11M/2007
Desktop Survey of Natural Values: The DPIPWE database “The Natural Values Atlas” was
accessed for the known biological records of the locality and environs. Records of threatened species
of flora and fauna known to occur within a 5,000 metre radius of the location were also accessed.
Data sourced included the vegetation types and plant communities, the occurrence of any threatened
vegetation communities, the recorded locations of any threatened species of plants and threatened
fauna known or expected to occur in the vicinity.
REF. POINT for STUDY AREA: 383484E – 5454826N.
Desktop Survey Results:
VEGETATION COMMUNITIES:
The following vegetation communities are mapped under the TasVeg mapping program as occurring
within 1,000 metres of the study area reference points.
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VEGETATION COMMUNITY TasVeg Code / Map colour EXTENT IN STUDY AREA
Eucalyptus obliqua Wet Forest
(undifferentiated)
WOU / Light blue The predominant community in
the wider area.
Eucalyptus obliqua Dry Forest
& Woodland
DOB / green The predominant community
mapped within the lease area
Acacia dealbata Forest NAD / olive with horizontal
white lines
Along the creek lines and Inglis
River to the west
Leptospermum lanigerum –
Melaleuca squarrosa Swamp
Forest
NLM / olive with diagonal
lines
Localized area about 1,000
metres south of the reference
point
Agricultural Land FAG / cream Mainly to the east and outside
of study area
Other cleared areas FUM / lime green with “z” Existing quarries & gravel pits
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FIGURE 3: Vegetation communities as per observed around quarry area. (including Tas Veg
reference code) Point Ref: 383484E - 5454826N (GDA94)
THREATENED VEGETATION COMMUNITIES:
None of the native vegetation communities which are mapped as occurring in the locality are listed as
threatened under the Tasmanian Nature Conservation Act 2002.
VEGETATION COMMUNITIES OF CONSERVATION SIGNIFICANCE:
Eucalyptus obliqua Wet Forest (WOU) is considered to be under-reserved in some regions of
the State and under-reserved across the state in its old-growth condition.
Acacia dealbata Forest (NAD) is considered to be under-reserved in some bioregions.
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THREATENED FLORA:
No species of threatened flora which are listed under the Tasmanian Threatened Species Conservation
Act 1995 and/or the Commonwealth Environment Protection and Biodiversity Conservation Act 1999
are recorded on the “Natural Values Atlas” database as occurring within 3,000 metres of the study
area reference point.
One species of threatened flora is recorded on the “Natural Values Atlas” database as occurring within
5,000 metres of the study area.
Lachnagrostis scabra subsp scabra, the Rough Blowngrass is known from a single 1995
record located about 5,000 metres to the north-west of the study area. The species is listed as
being rare under the Tasmanian Act.
THREATENED FAUNA:
Four species of threatened fauna which are listed under the above Acts are recorded on the database as
occurring from within 3,000 metres of the study area. No threatened species has been recorded from
within 1,000 metres of the site.
White (Grey) Goshawk Accipiter novaehollandiae is listed as an endangered species under
the Tasmanian Act. There are two records on the database one from the 1997 and the other
about 2002.
Wedge-tailed Eagle Aquila audax subsp fleayi. The Tasmanian subspecies is listed as being
endangered under both State and Commonwealth Acts. It required large trees within old-
growth forest for nesting. There is one record from 2002.
Spotted-tailed Quoll Dasyurus maculatus subsp maculatus is listed as being rare in Tasmania
and vulnerable nationally. There are three records from around the mid 1990’s.
Giant Freshwater Crayfish (Lobster) Astacopsis gouldi is considered to be a vulnerable
species in Tasmania and nationally. There are 3 records from within 2,500 metres and a
further 5 from within 3,000 metres. All are dated from between 1999 and 2004.
There are further records of the above threatened species from between 3,000 metres and 5,000 metres
of the study area reference point.
White (Grey) Goshawk. 13 records, (1977 – 1981 x11, 1997 x1, 2002 x1)
Wedge-tailed Eagle. 7 records, (1977 – 1981 x6, 2002 x1)
Spotted-tailed Quoll. 1 record. (1995)
Giant Freshwater Crayfish. 106 records (1999 – 2010, mainly from targeted surveys)
The following eight threatened species could occur in the locality based on habitat mapping and the
known geographical range of each.
White-bellied Sea-eagle Haliaeetus leucogaster. The species is considered to be vulnerable in
Tasmania. It is a bird of the coast and of inland lakes and waterways and often follows the
larger rivers such as the Inglis when hunting.
Tasmanian Masked Owl Tyoto novaehollandiae subsp castanops The Tasmanian subspecies
of the Masked Owl is endangered in Tasmania and is listed as being vulnerable nationally.
The species required large hollows in old-growth forest for nesting.
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Swift Parrot Lathamus discolor is recognized as an endangered species in Tasmania and
nationally. The bird breeds in Tasmania over summer and requires tree hollows for nesting,
but over-winters on the mainland.
Azure Kingfisher Ceyx azureus subsp diemensis. The Tasmanian subspecies is listed as being
endangered under both State and Commonwealth Acts. It is localised on the rivers of the
north-west and western Tasmania.
Eastern Barred Bandicoot Parameles gunnii is quite widespread in Tasmania but is listed as
being vulnerable under the Commonwealth Act as it is a threatened species on mainland
Australia.
Australian Grayling Prototroctes mareana is a native fish which is considered to be
vulnerable in the State and Nationally.
Eastern Dwarf Galaxia Galaxiella pusillus. Is a small native fish which is listed as being
vulnerable under both Acts.
Hydrobiid Snail (Table Cape) Beddomeia capensis has a limited occurrence in the north-west
and is considered to be endangered in Tasmania.
Field Survey:
Methodology: The field survey was undertaken on foot and focused on the area of the two leases, the
range of vegetation types in the locality and potential habitat for threatened species of fauna such as
the creek-lines.
Vascular plant species were recorded; vegetation communities were observed and cross-referenced
with the TasVeg map sourced from the Natural Values Atlas database.
The field survey was conducted on the Tuesday 4th May 2011.
Limitations: This survey was conducted in late autumn when few species are in flower. No botanical
survey can guarantee that all flora will be observed and recorded in a single survey in one year due to
seasonal and annual variation in abundance and the possible absence of flowers and fertile material
for identification. Ephemeral species which may have been present includes species of orchids, lilies,
herbs grasses and other graminoids. However all significant species known to occur in the study areas
and their environs have been considered in this report.
Field Survey Results:
The area of the lease was divided into 5 sub-survey areas for the purpose of the on the ground survey.
The Inglis River is outside of the quarry lease and was not included in this survey.
AREA 1: Ridgeline with active quarry, gravel pits and operational area, including the area
recently cleared of trees and vegetation and proposed for the extension of the quarrying
operations. This area also included all of lease 11M/2007.
AREA 2: Creek-line and slopes to the north.
AREA 3: Creek-line and slopes to the south.
AREA 4: Forested ridgeline to the south covering the southern 30% of the main lease.
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AREA 5: Eastern area of the lease to the north and south of the access road and property
entrance
AREA 1: Ridgeline with active quarry, gravel pits and operational area, including the area recently
cleared of trees and vegetation and proposed for the extension of the quarrying operations.
The gravel deposit in this locality appears to form a capping along the ridgelines which also
corresponds with the extent of the vegetation community Eucalyptus nitida Wet Forest (WNU). This
is at variance with the TasVeg map of the locality which does not show any E. nitida Forest.
A large proportion of this community has been previously cleared where the quarry and pits are now
located and a further area of the community has been cleared quite recently with the intention of
extending the pit and quarry. The extent of this community is now limited to a narrow band around
the periphery of the pit, quarry and cleared areas. The understorey where it is still present tends to be
scrubby with Leptospermum scoparium being the dominant species.
There was probably more diversity in the composition of the understorey prior to past and recent
clearing. The community has been impacted by the previous quarrying and gravel extraction
operations and by the recently clearing of what was said to be regrowth forest from previous forestry
activities. The community in this location however is not of high conservation significance. No
threatened species of flora were observed and there was little if any significant fauna habitat. No old-
growth trees or trees with hollows were observed. Tracks of Tasmanian Devil Sarcophilus harrisii
were observed in one location within the area of the gravel pit.
AREA 2: Creek-line and slopes to the north.
While only a short section of this creek passes through the actual lease about one kilometre of the
creek is adjacent to the lease and shares that part of the catchment. There is the potential therefore for
the quarry operations to have an impact on that length of the creek.
The vegetation community which extends along this creek-line is Acacia dealbata Forest (NAD)
which is in accordance with the TasVeg map although the community extends further up the creek
than is detailed on TasVeg. The community is of interest as it appears to be in a relatively pure form
with just a few emergent Eucalyptus obliqua. The understorey is typically a fern-gully particularly
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adjacent to the creek with the Soft Treefern Dicksonia antarctica dominating. The understorey on the
lower slopes is typical of wet forest with species such as Dogwood Pomaderris apetala, Nematolepis
squamea (Satinwood) and Coprosma quadrifida. No threatened species of plants were observed in
this creek area.
Although a minor creek with few deep pools, it had a good regular flow, and with its proximity to the
Inglis River it is likely to be foraging habitat for Astacopsis gouldi the Giant Freshwater Crayfish
(Lobster) and important habitat for juveniles of the species. Juveniles tend to inhabit minor creeks for
protection from predation.
The effective management of drainage from the adjacent pit and quarry will be essential in order to
avoid siltation and/or contamination of this creek and possible impact on the Crayfish, (Lobster)
habitat.
There are additional pits and quarries located to the north of this lease area (within other leasehold
areas) which also have the potential to impact on this creek. These pits are well illustrated on both the
TasVeg map and the aerial photo included with this report.
AREA 3: Creek-line and slopes to the south.
The upper reaches of this creek-line extends east to west and adjacent to the operational pit and
quarry. The creek-line as it extends westwards is also adjacent to but outside of the smaller of the two
leases 11M/2007.
Although the creek-line extends through a well defined gully there was no free water present in the
upper reaches of the creek at the time of the survey, and it is likely to flow only following rain events.
Permanent water flows are likely to be present lower down the catchment and closer to the Inglis
River.
The vegetation community along the creek-line was similar to the northern creek with Acacia
dealbata Forest although there were more Blackwood Acacia melanoxylon and Stringybarks
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Eucalyptus obliqua present than along the northern creek. The community also extended further up
the creeks catchment than is mapped on TasVeg.
No threatened species of plants were observed and the habitat was not considered suitable for the
Giant Crayfish, although such habitat may be present in the lower reaches of the creek outside the
lease and this survey area.
A few burrows of a Burrowing Crayfish were observed along the creek bank. The actual species was
not determined although the limited numbers of burrows would indicate that it was not optimum
habitat, although more suitable habitat is likely to be present in the lower reaches of the creek. The
Burrowing Crayfish would be unlikely to be one of the known threatened species in this location.
The effective management of drainage from the adjacent pit and quarry and also from future
operations within mining lease 11M/2007 will also be essential in this location in order to avoid
siltation and/or contamination of this creek.
AREA 4: Forested Ridgeline to the south.
This ridgeline takes up the southern 30% of the main lease area and does not appear to contain
significant gravel deposits. The ridge is separated from the current pit and quarry by the creek-line
surveyed as Area 3. The ridgeline is composed of semi-mature forest which has obviously been
subject to some forestry activities in the past, as no old-growth or hollow trees were observed, with
one exception.
Two species of Eucalypt were present, Eucalyptus nitida the Western Peppermint which
predominated along the actual ridge and Eucalyptus obliqua the Stringybark which became the
dominant tree on the slopes, however the community generally fits within the definition of Eucalyptus
obliqua Wet Forest (undifferentiated) (WOU). The predominant species which were present in the
understorey were Manuka Leptospermum scoparium, Monotoca glauca and Bracken Pteridium
esculentum which would indicate a past history of firing. No species of threatened plants were
observed in this area.
One old-growth Eucalypt with significant hollows was observed at this recorded location.
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GRID REF: 383391E – 5454354N (5m +/-)
As very few trees with hollows were observed during the survey this particular tree is important fauna
habitat. The individual hollows however did not appear to be large enough to accommodate a Masked
Owl nest site but could be suitable for Swift Parrots, although it is not a known nesting area for the
species. This area of forest and the associated creek-line would be suitable habitat for the White
(Grey) Goshawk. Area 4 should be excluded from future pit and quarry development.
AREA 5: Eastern area of the lease to the north and south of the access road and property entrance.
The forest vegetation along the eastern boundary of the lease area and on both sides of the access road
and entrance is comprised of a semi-mature stand of Eucalyptus brookeriana Wet Forest (WBR). This
community is listed as being vulnerable under the Tasmanian Nature Conservation Act 2002. The area
has been subject to forestry activities in the past and no old-growth trees were observed.
The main understorey species is the Dogwood Pomaderris apetala which formed dense and pure
stands in some locations and the Soft Treefern Dicksonia antarctica which was prevalent in the
depressions and gullys along with numerous ground ferns. A localized area of Leptospermum
scoparium Forest was noted in a shallow gully to the south of the access road and gate.
A localized infestation of Spear Thistle Cirsium vulgare was observed along the access road in the
vicinity of the entrance gate. Prompt attention to this patch of weed will ensure that it does not
continue to spread to cause management issues within the quarry.
On the basis of the presence of this threatened community this area of the lease should be treated as an
exclusion zone. It also forms a useful noise and visual buffer from the nearby private properties and
residences located along Elphinstone Road.
THREATENED VEGETATION COMMUNITIES:
One vegetation community listed under the Tasmanian Nature Conservation Act 2002 was present in
survey area No.5.
Eucalyptus brookeriana Wet Forest (WBR) was observed adjacent to the eastern boundary of the
main lease and to the north and south of the property entrance. The area of this community appears to
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be outside of the gravel deposit and this patch of forest forms a valuable screen from private
properties and residences eastwards along Elphinstone Road. This area should be treated as an
exclusion zone and care should be taken to ensure that activities associated with the operations of the
quarry and pit does not impact on this area. The easement for the existing access road would not be
included in the exclusion zone.
VEGETATION COMMUNITIES OF CONSERVATION SIGNIFICANCE:
The areas of Acacia dealbata Forest (NAD) present along the creek-lines (sub-survey areas 2 and 3)
within the lease and within the wider locality is a locally significant area of this vegetation community
in its pure form. The community is also important for its intactness and good condition and for its
fauna habitat potential. The community extends further up the creek-lines than is shown on the Tas
Veg map. The drainage from the quarry and pit operations will need to be well managed to avoid
environmental impacts such as siltation and/or contamination on the creek-lines and on this vegetation
community.
THREATENED FLORA:
No plant species listed under the Tasmanian Threatened Species Conservation Act 1995 and/or the
Commonwealth Environment Protection and Biodiversity Conservation Act 1999 was observed or
recorded during the field survey.
None of the listed species known to have occurred previously within 5,000 metres of the study area
were observed during the field survey and no suitable habitat for any of these species was present in
the areas surveyed.
THREATENED FAUNA:
Tracks of Tasmania Devil Sarcophilus harrisii were observed in one location of the quarry which
confirms that the animal is present in the location, although other evidence of the species presence
such as scats was not observed. The Devil is present but probably in low numbers with the quarry and
environs forming part of a territory. No potential den sites were observed during the field survey.
No other species of threatened fauna listed under the above Acts and/or previously recorded from
within 5,000 metres of the site were observed during the survey.
THREATENED FAUNA HABITAT:
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The creek to the north of the current pit and quarry is a minor creek but with a permanent flow
directly into the Inglis River. No deep pools suitable as permanent habitat for the Giant Freshwater
Crayfish (Lobster) Astacopsis gouldi were observed however it is likely to be regularly used as
foraging habitat by adults of the species given the proximity to the Inglis River which is known to
have good numbers of the Crayfish (Lobster). The creek is however likely to be important habitat for
juvenile Astacopsis gouldi as they require small creeks and tributaries adjacent to major rivers in order
to avoid predation.
The proper management of run-off and drainage from the quarry and pit will be essential to order to
avoid siltation and possible contamination of the creek and impact on potential Astacopsis gouldii
habitat.
A single old-growth Eucalyptus obliqua, which had significant hollows was observed in sub-survey
area 5 near the southern boundary of the lease. Such trees are potential habitat for numerous species
of animals and birds including a number of threatened species. As few old-growth trees and trees with
hollows are present in the locality such individuals trees are important to retain. The tree is near the
southern boundary of the lease and is unlikely to be affected by future quarry extensions.
As the pit and quarry is located within a larger tract of state forest with good connectivity to extensive
areas of native forest and to the Inglis River the following threatened species of threatened fauna
would at times be present within the survey area. Suitable forest habitat for the White (Grey)
Goshawk was observed during the survey and the Spotted-tailed Quoll is also very likely to be
present. The Tasmanian Devil was confirmed during the survey.
No suitable habitat was observed in the survey area for the remaining threatened species which have
either been recorded previously from the wider area or could occur in the locality based on their
known geographical ranges, as referred to in the desktop survey section of this report.
ENVIRONMENTAL WEEDS:
The lease area including the active pit and quarry was almost completely free of environmental
weeds. The only weeds observed during the survey were Spear Thistle Cirsium vulgare along the
access road and adjacent to the main entrance gate. Prompt attention and follow-up treatment of this
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weed infestation will ensure that it does not spread into the active pit and quarry and result in weed
management issues.
Conclusions:
The proposed extension of the present gravel pit towards the north will not directly impact on any area
of significant vegetation or threatened fauna habitat. Any future extension of gravel extraction into
lease area 11M/2007 will also not directly impact on any area of significant vegetation or threatened
fauna habitat.
The vulnerable and threatened vegetation community Eucalyptus brookeriana Wet Forest was
observed in sub-survey area 5.
A single old-growth Eucalyptus obliqua with significant hollows was observed in sub-survey area 4,
near the southern boundary of the lease as significant fauna habitat.
No threatened species of plants were observed during the survey. Evidence of the presence of
Tasmanian Devils (tracks) was observed in one location during the survey. Sub-survey area 1.
Potential habitat for the threatened Freshwater Crayfish (lobster) was observed in the creek to the
north of the pit and quarry. Sub-survey area 2.
The most important issue to be addressed is the effective management of drainage from the pit and
gravel extraction operations in order to avoid siltation and/or contamination of the two creeks which
flow through and adjacent to the lease area, the northern creek being potential habitat for the
threatened Freshwater Crayfish (Lobster).
Only one minor infestation of the weed Spear Thistle Cirsium vulgare was observed during the
survey. No evidence was observed during the survey of the presence of the plant pathogen
Phytophthora cinnamomi.
Recommendations related to the proposed extension of the open pit at the existing quarry site
for vegetation and fauna habitat management:
EXTENSION TO EXTRACTION AREA:
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Permit extension of the pit and quarry within lease area 45M/1975 towards the northern
boundary only to where vegetation has been recently cleared.
Future gravel extraction could be undertaken within lease area 11M/2007 without impacting
on significant vegetation or threatened fauna habitat.
Prepare and implement an effective drainage management plan for the pit and quarry
operation to ensure that there is no siltation or contamination of the creek-line to the north of
the site and of the creek-line to the south of both leases.
Prepare and implement a rehabilitation and revegetation plan for worked out sections of the
pit and quarry. Overburden and topsoil from the recently cleared area should be stripped prior
to the pit extension and utilised in the revegetation program.
VEGETATION COMMUNITIES:
The area of forest along the ridgeline in the southern 30% of the main lease should be
excluded from future pit extensions as it appears to have a limited gravel resource. As an area
of wet forest adjacent to creek-lines, it is potential habitat for the White (Grey) Goshawk.
The preparation and implementation of an effective drainage management plan will ensure
that there is no impact from siltation or contamination on the areas of Acacia dealbata Forest
(NAD) which extends along the two creeks that flow through and adjacent to the lease areas.
THREATENED VEGETATION COMMUNITIES:
The threatened vegetation community Eucalyptus brookeriana Wet Forest is present in the
eastern area of the main lease to the north and south of the access road and main entrance.
This area should be retained and treated as an exclusion zone and protected from any impacts
from the gravel extraction operations. The access road easement would not be included in the
exclusion zone. The retention of this area of forest would also provide a noise buffer and
visual screen from nearby properties and residences along Elphinstone Road.
THREATENED FLORA:
No species of threatened flora was observed or recorded during the field survey and no
specific action is required.
FLORA OF CONSERVATION SIGNIFICANCE:
No flora of specific conservation significance was observed during the survey and no action is
required in addition to the recommendations under vegetation communities.
THREATENED FAUNA:
Although no species of threatened fauna was observed during the survey, there was evidence
of the presence of Tasmanian Devil (tracks) however no den sites were found. No specific
action is required in addition to those under vegetation communities.
THREATENED FAUNA HABITAT:
The preparation and implementation of an effective drainage management plan will ensure
that there is no impact from siltation or contamination on the two creeks which flow through
and adjacent to the lease area. The northern creek in particular is potential habitat for the
Freshwater Crayfish (lobster).
The exclusion of the area of wet forest along the ridge in the southern 30% of the main lease
area from future quarry or pit extensions will retain potential habitat for the White (Grey)
Goshawk and the single old-growth tree with significant hollows on the lease.
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ENVIRONMENTAL WEEDS:
An environmental weed management plan will be necessary to ensure that the present minor
infestation of the weed Spear Thistle Cirsium vulgare is contained and other weeds known to
favour disturbed sites such as gravel pits and quarrys do not become established during
quarrying operations.
PHYTOPHTHORA:
A Phytophthora Management plan should be prepared and implemented as part of the on-
going quarry and pit operations as a preventative measure.
Philip Milner
Vegetation Consultant
PHOTO 1. Area cleared and proposed for extension of open pit quarry
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PHOTO 2. Workings of current operational open pit and quarry
PHOTO 3. Acacia dealbata Forest community along the northern creek-line
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PHOTO 4. Dicksonia Antarctica along bed of northern creek.
PHOTO 5. Acacia dealbata Forest community along southern creek-line.
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PHOTO 6. Eucalyptus obliqua Wet Forest on ridge in southern 30% of the main lease area.
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PHOTO 7. Eucalyptus brookeriana Wet Forest near the eastern boundary of the main lease.
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Appendix 1:
Vascular Plant Species Recorded
Dicotyledonae Common Name Community Recorded Status
APIACEAE
Hydrocotyle hirta Hairy Pennywort NAD,
ASTERACEAE
Cirsium vulgare Spear Thistle WBR d
CAPRIFOLIACEAE
Sambucus gaudichaudiana White Elderberry NAD
DROSERACEAE
Drosera pygmeae Dwarf Sundew WNU
EPACRIDACEAE
Cyathodes glauca Purple Cheeseberry WBR
Epacris impressa Common Heath WNU
Leptecophylla juniperina Pink Berry WBR
Monotoca glauca Goldywood WNU, WOU, NAD
EUPHORBIACEAE
Amperea xiphoclada Broom Spurge WNU
FABACEAE
Aotus ericoides Goldenpea WNU,
Oxylobium ellipticum Golden Shaggypea WNU
Pultenaea daphnoides Heartleaf Bushpea WNU
FAGACEAE
Nothofagus cunninghamii Myrtle WBR
MIMOSACEAE
Acacia dealbata Silver Wattle NAD, WNU
Acacia melanoxylon Blackwood NAD, WOU,
Acacia mucronata Caterpillar Wattle WOU, WNU
Acacia verticillata Prickly Moses WNU, WOU, NAD, WBR
MYRTACEAE
Eucalyptus brookerana Brookers Gum WBR
Eucalyptus nitida Western Peppermint WNU, WOU e
Eucalyptus obliqua Stringybark WNU, WOU, NAD, WBR
Leptospermum scoparium Manuka WNU, WOU, NAD, WBR
Melaleuca squarrosa Scented Paperbark WNU
PITTOSPORACEAE
Billardiera longiflora Climbing Blueberry NAD, WOU
Pittosporum bicolor Cheesewood WOU,
RANUNCULACEAE
Clematis aristata Southern Clematis WBR
RHAMNACEAE
Pomaderris apetala Dogwood WNU, NAD, WBR, WOU
RUBIACEAE
Coprosma quadrifida Currant Bush WOU, NAD, WBR
RUTACEAE
Nematolepis squamea Satinwood WOU
Ziera arborescens Stinkwood WOU
THYMELAECEAE
Pimelea drupaceae Cherry Riceflower NAD, WOU
Pimelea linifolia Slender Riceflower WNU, WOU
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URTICACEAE
Urtica incisa Scrub Nettle NAD
Monocotyledonae
CYPERACEAE
Gahnia grandis Cutting Grass WOU, WBR, NAD, WNU
Lepidosperma elatius Tall Swordsedge WOU, WBR
LILIACEAE
Dianella tasmanica Tasman Flax-lily NAD, WNU
ORCHIDACEAE
Chiloglottis sp. A Bird Orchid WOU, NAD, WNU
Pterostylis pedunculata Maroonhood WOU, NAD
Pteridophyta
ASPLENIACEAE
Asplenium bulbiferum Mother Spleenwort NAD
BLECHNACEAE
Blechnum wattsii Hard Waterfern NAD, WOU, WNU
DENNSTAEDTIACEAE
Histiopteris incisa Bat’s wing Fern NAD, WOU
Hypolepis rugulosus Ruddy Groundfern NAD
Pteridium esculentum Bracken WNU, WOU
DICKSONIACEAE
Dicksonia antarctica Soft Treefern NAD, WOU, WBR
DRYOPTERIDIACEAE
Polystichum proliferum Mother Shieldfern NAD, WBR
GLEICHENIACEAE
Gleichenia dicarpa Pouched Coralfern WNU
HYMENOPHYLLACEAE
Crepidomanes venosum Bristle Filmyfern NAD
POLYPODIACEAE
Microsorium pustulatum Kangaroo Fern NAD
Community Codes:
WNU Eucalyptus nitida Wet Forest Status Codes
WOU Eucalyptus obliqua Wet Forest (undifferentiated) e = endemic to Tasmania
WBR Eucalyptus brookeriana Wet Forest i = Introduced Weed
NAD Acacia dealbata Forest d = Declared Wee
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Appendix 2
Vegetation communities and species recorded
1. Eucalyptus nitida Wet Forest and Woodland (TasVeg Code WNU)
Observed in survey area No.1 and along the ridges where the main gravel deposit is located. The
community has been largely cleared in this location.
TREES COMMON NAME FREQUENCY
Eucalyptus nitida Western Peppermint common
TALL SHRUBS
Acacia dealbata Silver Wattle (saplings) occasional
Acacia mucronata Caterpillar Wattle common
Acacia verticillata Prickly Moses occasional
Nematolepis squamea Satinwood occasional
Melaleuca squarrosa Scented Paperbark localized
MEDIUM SHRUBS
Leptospermum scoparium Manuka common
Monotoca glauca Goldywood occasional
Oxylobium ellipticum Golden Shaggypea uncommon
Pultenaea daphnoides Heart-leaf Pea occasional
SMALL SHRUBS
Amperea xiphoclada Broom Spurge localised
Aotus ericoides Golden Pea occasional
Epacris impressa Common Heath occasional
Pimelea linifolia Slender Riceflower uncommon
HERBS & HERB-LIKE PLANTS
Drosera pygmaea Dwarf Sundew localised
GRASSES & GRAMINOIDS
Dianella tasmanica Tasman Flax-lily occasional
FERNS & ALLIED PLANTS
Dicksonia antarctica Soft Treefern common
Gleichenia dicarpa Pouched Coralfern localised
Pteridium esculentum Bracken common
Eucalyptus obliqua Wet Forest (undifferentiated) (TasVeg Code WOU)
This community was present mainly across the intermediate slopes between the Eucalyptus nitida Wet
Forest along the ridges and the Acacia dealbata Forest along the gullys and creek-lines.
DOMINANT TREES
Eucalyptus obliqua Stringybark common
SECONDARY TREES
Acacia melanoxylon Blackwood common
Eucalyptus nitida Western Peppermint occasional
TALL SHRUBS
Pomaderris apetala Dogwood common
Nematolepis squamea Satinwood common
Pittosporum bicolor Cheesewood uncommon
MEDIUM SHRUBS
Leptospermum scoparium Manuka common
Ziera arborescens Stinkwood occasional
Monotoca glauca Goldeywood common
SMALL SHRUBS
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Pimelea linifolia Slender Riceflower occasional
CLIMBERS
Billardiera longiflora Climbing Blueberry occasional
HERBS & HERB-LIKE PLANTS
ORCHIDS
Chiloglottis sp. A Bird Orchid occasional
GRASSES & GRAMINOIDS
Gahnia grandis Cutting Grass occasional
FERNS & ALLIED PLANTS
Histiopteris incisa Bat’s wing Fern occasional
Pteridium esculentum Bracken abundant
Eucalyptus brookeriana Wet Forest (TasVeg Code WBR)
An area of this community was observed adjacent to the eastern boundary of the lease area and
extended both north and south of the entrance road. This community is listed as being vulnerable
under the Nature Conservation Act 2002.
DOMINANT TREE
Eucalyptus brookeriana Brookers Gum common
SECONDARY TREES
Eucalyptus obliqua Stringybark occasional
UNDERSTOREY TREES
Pomaderris apetala Dogwood abundant
Nothofagus cunninghamii Myrtle occasional
TALL SHRUBS
Acacia verticillata Prickly Moses occasional
Leptospermum scoparium Manuka occasional
MEDIUM SHRUBS
Coprosma quadrifida Currant Bush occasional
Cyathodes glauca Cheeseberry occasional
SMALL SHRUBS
Letpecophylla juniperina Pink Berry occasional
CLIMBERS
Clematis aristata Southern Clematis uncommon
GRASSES & GRAMINOIDS
Gahnia grandis Cutting Grass occasional
FERNS & ALLIED PLANTS
Dicksonia antarctica Soft Treefern occasional
Polystichum proliferum Mother Shieldfern common
Pteridium esculentum Bracken common
ENVIRONMENTAL WEEDS
Cirsium vulgare Spear Thistle localized near entrance
Acacia dealbata Forest (TasVeg Code NAD)
The Acacia dealbata Forest community follows the two creek-lines through the lease area and extends
higher into the catchment along both creeks than is shown on the TasVeg map. The community in the
location is a pure form of the type as the Acacia is the dominant tree species along the creek-lines.
The community is also mapped by TasVeg as occurring along the nearby Inglis River.
DOMINANT TREE
Acacia dealbata Silver Wattle abundant
EMERGENT TREES
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Eucalyptus obliqua Stringybark occasional
SECONDARY TREES
Pomaderris apetala Dogwood common
TALL SHRUBS
Acacia verticillata Prickly Moses occasional
Leptospermum scoparium Manuka occasional
MEDIUM SHRUBS
Coprosma quadrifida Currant Bush common
SMALL SHRUBS
Pimelea drupaceae Cherry Riceflower occasional
Sambucus gaudichaudiana Native Elderberry uncommon
HERBS & HERB-LIKE PLANTS
Hydrocotyle hirta Hairy Pennywort common
Urtica incisa Nettle occasional
ORCHIDS
Chiloglottis sp. A Bird Orchid occasional
Pterostylis pedunculata Maroonhood occasional
GRASSES & GRAMINOIDS
Gahnia grandis Cutting Grass occasional
FERNS & ALLIED PLANTS
Asplenium bulbiferum Mother Spleenwort occasional
Blechnum wattsii Hard Waterfern occasional
Crepidomanes venosum Bristle Filmyfern occasional
Dicksonia antarctica Soft Treefern common
Histiopteris incisa Bat’s wing Fern common
Hypolepis rugulosus Ruddy groundfern occasional
Microsorium pustulatum Kangaroo Fern occasional
Polystichum proliferum Mother Shieldfern occasional
Pteridium esculentum Bracken occasional
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Appendix 2 - Weed Management and Hygiene Control Plan
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Alan Summers Transport – Summers Sand and Gravel Pit
Weed Management and Hygiene Plan
Overview
PC Kay and D R Summers operate as Allan Summers Transport (TAS 21434B), which is a supplier of
screened and raw products (principally sand and gravel). All materials and processing will be sourced
and undertaken on site. The lease area including the active pit and quarry was almost completely free
of environmental weeds. The only weeds observed during the vegetation survey (2012) were Spear
Thistle Cirsium vulgare along the access road and adjacent to the main entrance gate. Prompt
attention and follow-up treatment of this weed infestation will ensure that it does not spread into the
active pit and quarry and result in weed management issues.
Objective
The objectives of the Weed Management & Hygiene Plan are;
1 To control existing weeds and to prevent further colonization by weeds at the site.
2 To allow optimum conditions for the establishment and eventual revegetation of the site
by native species.
3 Reducing the potential for the site being a source of weeds to neighboring or offsite
properties.
This will be achieved by the use of a specialist contractor who will spray the weeds every 6 months.
During this time the contractor will observe the success of the spraying regime and report this in the
register, as well as reporting observations and recommendations in the attached report. The site
hygiene procedures will prevent weeds spreading on site, and prevent weeds leaving site.
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Weed Management and Mitigation
Current weed infection
A full vegetation assessment was conducted and weeds identified. Spear Thistle Cirsium
vulgare was identified and mapped above. No other weeds were identified on the site.
The potential impact of these weeds was assessed. It was concluded that they currently do not pose a significant risk, but should the weeds spread into the main area of the quarry, distribution of the weed would increase significantly. Hence the recommendation is to spray immediately and follow-up with the second application in six months, as per the Plan. The priority is obviously these weeds as they are the only weeds on the site. The strategy is to spray them. The use of an external, qualified weeds contractor will ensure that weeds will not spread and the existing weeds will be eradicated. The following register and weed report will be filled out every 6 month. Recommendations from the contractor will be implemented. This documentation will be available at the site and reported in the Annual Report. Eradication of the Spear Thistle will be monitored in the register. The register will also be used to detect the arrival of any new weeds. The Annual Report to EPA will detail any new weeds and the success of the Management Plan. The strategy as set out is to have the contractor spray every 6 months and sign off the register. The contractor will add additional sprays or additional spray rounds if weed numbers or species increase. This will be documented in the Weed Assessment Report (below). Spring and autumn are the optimum times for spraying, but weed varieties will determine this in the future. Identification of appropriate herbicides for control of future weeds, usage and effectiveness are not known at this stage. However, a qualified contractor will specify these parameters in the Weed Register and in the Weed Assessment Report; this will be reviewed 6 monthly. These variables will be determined by the weeds detected.
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The General Plan is:
Maintain suitable records of the location of deliveries and source of any receivables.
Isolation of any area of known weed infestation until treatment has been undertaken, by
restricting access and vehicle movements through such areas.
Annual review of weeds and appropriate treatment of occurrences on the premises
including on site access roads and rehabilitation areas.
Provision of suitable resources, training and supervision for the undertaking of successful
weed treatments, including both chemical and physical methods.
Restrict site access by maintaining fenced perimeter and locked gate to control vehicle and
stock movements.
Dedicated offsite wash down facilities to undertake cleaning and maintenance of equipment
prior to access to the site, and upon leaving site.
Liaison and cooperation with external bodies in regional weed eradication programs,
including periodic review of weed management activities.
Site Operators and Contractor Training. Management and Control Measures will be
passed on to the operators. This is specifically associated with transport of machinery and
materials into and off site, and the cleaning procedures required.
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EXAMPLE OF DOCUMENTATION
SUMMERS QUARRY
Register of Weed Spraying :
Date Sprayed Area Sprayed Chemicals Used Signature - Completed
15/1/2012 Access Road Glyphosphate, Camba X
15/6/2012 Access Road Glyphosphate, Camba X
Impact of chemicals used - ie breaks down in 4 days.
Weed Assessment Reports:
15/1/2012: Specialist Observations……. Thistle / weed levels reduced from previous visit. No new weed types nor increased numbers detected. Dieback on the road is evident , Native growth not impacted. 15/6/2012 Specialist Observations……. Thistle levels reduced from previous visit. No new weed types nor increased numbers detected. No thistles noted on the side of the road, Native growth not impacted.
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Weed Hygiene Plan.
The Weed Hygiene Plan was compiled in conjunction with the Weed Management Plan. The hygiene plan is developed to ensure the development and associated works areas do not result in the introduction of newly declared weed species into the area, translocation of weeds within the development footprint, or the export of existing declared weeds out of the area.
All equipment accessing the site is washed offsite and clean of dirt and debris, following the guidelines of the Tasmanian Wash Down Guidelines for Weed & Disease Control (2004). The Summers Transport Site Manager will ensure that documented tracking will confirm this procedure is followed and the vehicles physical checked before access is given.
Vehicle, machinery and equipment hygiene (including the wash-down protocols when travelling between clean and contaminated areas within the development footprint) will be initiated following the guidelines of the Tasmanian Wash down Guidelines for Weed & Disease Control (2004). As there are no weeds detected within the work area this protocol will not initiated unless weeds are detected during the 6 monthly Weeds Assessment Report.
All equipment leaving the site will be washed clean of dirt and debris, following the guidelines of the Tasmanian Wash Down Guidelines for Weed & Disease Control (2004). As there are no weeds detected within the work area this protocol will not be initiated unless weeds are detected during the 6 monthly Weeds Assessment Report. The Summers Transport Site Manager will ensure that documented tracking will confirm this procedure is followed. Currently with no weeds in the active area of the quarry, washdown of equipment prior to leaving the site is not required (note offsite washing prior to entry to the site is required). Should weeds be detected in the active quarry area in the future, there is a designated wash down area near the first settling pond. Trucks would be washed of all site material into the bunded area. Runoff would be directed into the first settling pond to remove sediment from surface water. The runoff water would be managed and tested as required in the wastewater treatment section. The site manager will review the Weed Assessment Reports, and as required will log the introduction of wash-down procedures should they need to be initiated. A daily log sheet will be completed as part of the site entry process to record each truck and the adherence to the hygiene protocol. Documentation will be kept on site for review as required. The above procedures will ensure that no materials contaminated with weed propagules (seed, propagative vegetative material) are either imported into the development footprint or exported out of those areas.
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Appendix 3 - Phytophthora Management Plan
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Alan Summers Transport – Summers Sand and Gravel Pit
Phytophthora Management Plan
Overview
PC Kay and D R Summers operate as Allan Summers Transport (TAS 21434B), which is a supplier of
screened and raw products (principally sand and gravel). All materials and processing are sourced and
undertaken on site.
The presence Phytophthora has not been identified in the operational area of the lease. The receipt of
materials from other locations, and periodic use of equipment from other locations presents the risk of
introduction of Phytophthora to the area.
Objectives
The purpose of this Management Plan is to minimize the risk of diseases (and weeds) being brought
into the area, dispersed throughout the site, or re-transported to adjacent areas, by employing good
hygiene management at the sites. DPIWE’s Interim Phytophthora cinnamomi Management
Guidelines; The Quarry Code of Practice; and the Tasmanian Wash Down Guidelines for Weed &
Disease Control have been consulted in developing management prescriptions.
Management and mitigation
Where possible use materials sourced in situ and do not allow external materials to be utilised
in site operation or remediation.
Avoid ponding of water other than for sediment retention purposes.
Confine mobile equipment used on other sites to dedicated traffic routes.
Ensure all equipment accessing the site is washed offsite and clean of dirt and debris,
following the guidelines of the Tasmanian Wash down Guidelines for Weed & Disease
Control (2004).
Restrict site access by keeping gate locked when not in attendance. Other access is not
controllable.
Periodic review of activities with regulator.
Other
If equipment has been used or accessed in a known area affected by Phytophthora cinnamomi the
equipment is to be cleaned using Phytoclean™. This is registered for the sterilisation of equipment
and machinery in Tasmania for the control of Phytophthora cinnamomi. It is used at a rate of 200 mL
per 10 L of water for washing surfaces cleaned of mud.
Solution should remain in contact with surfaces for at least 30 seconds before rinsing. It is available in
20 L or 200 L drums and is manufactured by Avis Chemicals, Dandenong (Ph: 03 9794 5585, fax 03
9706 9206). Use only in accordance with the label directions and when prescribed in the job
specifications for the control of Phytophthora root rot.
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Appendix 4 - Mining Plan
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MINING PLAN
1. Site Geology
The geology of the deposit comprises unconsolidated Tertiary river sediments, partly overlain by
Tertiary basalts, and underlain by Precambrian schists. The river sediments are rounded quartzitic
gravels and quartz sands. A general discussion of the extraction of materials from this area is found in.
McKibben J and Matthews W. L., “Resource assessment: The Calder–Flowerdale gravel pits”,
Tasmanian Geological Survey Record 1996/11.
The deposit has been explored using excavator test pits. The exploration revealed that the deposit is
highly variable in depth of material, and particle size distribution. This is typical of less mature fluvial
deposits, and is considered beneficial as a greater number of material types can be supplied, but it
means that the lateral site disturbance potential is difficult to minimise. The MRT-mapped extent of
the deposit covers most of the leased area.
2. Current activity
2.1. Extraction Process The site operates at a low level of production, producing various grades of material as demand
requires. The sand/gravel is extracted by an excavator. No blasting is required. The sand/gravel is
screened to provide a variety of products for use in construction and agriculture
Depending on the client demand, the source of within the pit area varies, as the proportions of
coarse/fine sand, with or without gravel, vary considerably.
No changes are proposed to this process for the proposed higher level of production.
2.2. Top Soil and Overburden Overburden materials (and topsoil separately) are excavated and removed to stockpile areas. Some of
the material is stored on the excavation boundary and vegetation allowed to colonise the stockpiles.
Stockpiles then assist in attenuating noise, dust and potential visual impacts. New stockpile are
developed as appropriate to provide for rehabilitation of the proposed expanded production. Materials
not needed for attenuation will be recycled as per current practice.
Over much of the site, the upper layer is material not previously mined, but with topsoil removed.
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3. Runoff
All issue points are controlled by drains and fed through silt traps to ensure that runoff is of
satisfactory quality. Silt traps are temporary, and are installed as required to ensure that silt from
drainage does not leave the site. Drainage pathways (refer Figure 1) alter as material is extracted and
the surface drainage regime changes.
Figure 1. Drain lines
3.1 Maintenance
Silt traps will be cleaned as necessary. Fines are returned to the pit area.
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3.2 Silt Trap Construction
Silt traps are generally constructed as per Figure 2.
Figure 2. Silt trap construction
Construction comprises:
a. Consider safety in siting silt traps to prevent inadvertent access.
b. Excavate a pit ~2m wide, ~5m long, ~1.5m deep (ramped at one end) at the lowest end of the extraction area.
c. Angle sides appropriate to the soil type, install berms either side as necessary. Topsoil or gravel any berms as required to limit erosion. Geotextile may be found useful as a liner in softer soils.
d. Excavate a 250mm (max) deep shelf at the outlet end as a vegetated filter area
e. Shovel some topsoil onto the veg-filter area. Plant swamp grasses, sedges etc as required (plants will grow there anyway, in time)
f. Direct all runoff through this pit, by drains, berms, etc.
It may not be possible or practical to construct silt traps to precise dimensions or shapes.
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4. Extraction Areas
The plans below (Figures 3 - 5) indicate the areas in which extraction will be concentrated, over the
remaining lifetime of the pit. Area 1 is largely complete, with several areas being worked on
simultaneously. Development of Area 2 is underway, and development in Area 3 has not commenced.
It is important to understand that specific locations may not be utilised until the demand for the
particular material encountered in that area necessitates extraction. Subsequently, some areas may not
be rehabilitated until reserved are extracted. Some areas not planned for extraction are of poor quality,
or have been mined out previously.
Assuming that economic conditions remain as at present, Area 3 should not be required until Areas 1
and 2 are completed. Part of Area 1 shall remain as treatment and stockpile area.
Figure 3. Extraction areas years 1-3 with rehabilitation indicated
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Figure 4. Extraction areas years 4-6 with rehabilitation indicated
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Figure 5. Completion of extraction of areas 1 & 2 Prior to starting on Area 3. Area 1 remains as treatment and
stockpile area
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4.1. Constraints
The limits to the extraction zones are determined by a combination of factors, some of which
overlap (Figure 6). An area of high conservation value vegetation (E. brookeriana) is present on
the central eastern side of the main lease, and is also not underlain by extractable sand or gravel.
The southeast corner of the lease has poor reserves of material, and the central west area is a steep
sided creekline. The northern boundary is steep and also has drainage lines, and poor reserves.
All drainage lines are avoided, for protection of possible A. gouldi habitat, steep terrain and no
gravel reserves. 9M 1999 is a Waratah Wynyard Council Lease. No extraction will occur near this
lease, but revegetation will occur and so to prevent accidently revegetating this lease, survey pegs
will be put in prior to revegetating in this area.
Figure 6: Mining areas showing constraints.
5. Rehabilitation
During operation topsoil stockpiles will be placed near the boundaries of the extraction areas.
The vegetation that may establish on the outside of the stockpiles will be maintained, to provide
suitable visual screens.
Progressive rehabilitation will occur as sand extraction from each area of the pit is completed.
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As the site has been operated previously (by others) there remain areas which require
rehabilitation. These will be progressively rehabilitated during the life of the pit. Natural
regrowth is occurring, although damage from trespassers occurs commonly.
Species used for revegetation will be native species found in the Calder region.
Native vegetation at this site may be placed on the steeper slopes. Planting tube stock or plugs
will aid in rapid colonisation of the vegetation thus reducing the potential for erosion and loss of
the topsoil layer. All species shall be sourced locally from a reputable native plant specialist, 1.5
plants per m2 would be required.
6. Erosion Control
The surface material is generally prone to erosion following removal of vegetation. However the
site has a number of natural sumps where the suspended fines (a small proportion of the bulk
material) settle quickly. Existing steeper slopes have not been impacted by the previous extraction
operations, and are not proposed to be affected by this proposal, as the sand/gravel reserves are
not present on steeper slopes. The lower levels of the deposit are slightly cemented and are not as
prone to erosion.
Erosion can be managed by controlling velocity of runoff, and vegetative cover; thus steeper
slopes without vegetation may erode. As the site is relatively flat, erosion in minimal, and as
there are no reserves on steeper slopes, erosion is not considered of major significance to the
extraction operations. Silty runoff is controlled by silt traps as above (Sect 3).