Kryden Quarry Intensification - Environmental Assessment Report Meander
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Environmental Assessment
Report
Kryden Quarry
Intensification
Meander
Wayne Johnston
August 2022
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 1
Environmental Assessment Report
Proponent Wayne Johnston
Proposal Kryden Quarry Intensification
Location Meander Road, Meander, TAS 7304
Class of Assessment 2A
PCE no. 11111
Permit Application No. PA 22/0166 (Meander Valley Council)
MyDAS Folder No. 22/1061
MyDAS Document No. D22-402939
Assessment Process Milestones
6 January 2022 Permit Application submitted to Council
28 January 2022 Referral received by the Board
8 March 2022 Guidelines Issued
18 June 2022 Start of public consultation period
4 July 2022 End of public consultation period
28 July 2022 Date draft conditions issued to proponent
9 August 2022 Statutory period for assessment ends
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 2Glossary/Acronyms AHD Australian Height Datum AMD Acid and metalliferous drainage Board Board of the Environment Protection Authority CAS Conservation Assessments Section, NRE EER Environmental Effects Report EIA Environmental impact assessment EMPC Act Environmental Management and Pollution Control Act 1994 EMPCS Environmental management and pollution control system EPBC Act Environment Protection and Biodiversity Conservation Act 1999 (Cth) LUPA Act Land Use Planning and Approvals Act 1993 NC Act Nature Conservation Act 2002 NOI Notice of Intent NRE Department of Natural Resources and Environment Tasmania PAF Potentially Acid Forming QCP Quarry Code of Practice (EPA 2017) RMPS Resource Management and Planning System of Tasmania SD Sustainable development SWL Sound power level TASVEG Digital vegetation map of Tasmania TSP Act Threatened Species Protection Act 1995 Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 3
Report Summary This report is an environmental assessment of the proposed intensification of Kryden Quarry by Wayne Johnston. The proposal is to expand the operations of an existing quarry extracting up to 31,250 cubic metres (50,000 tonnes) rock or gravel, including ripping, drilling, and blasting. The material will be crushed and screened on site. The report has been prepared based on information provided in the permit application and Environmental Effects Report (EER). Relevant government agencies and the public were consulted, and their submissions considered as part of the assessment. Appendix 1 contains details of matters raised by referral agencies during the consultation process. Appendix 2 contains a table of the proponent’s proposed management measures. Appendix 3 contains the environmental permit conditions for the proposal. Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 4
Contents 1 Approval Process ........................................................................................................................................................... 6 2 SD Objectives and EIA Principles............................................................................................................................... 7 3 The Proposal ................................................................................................................................................................... 8 4 Project Rationale and Alternatives .......................................................................................................................... 13 5 Public and Agency Consultation ............................................................................................................................... 14 6 Evaluation of Environmental Issues .......................................................................................................................... 15 7 Issues not assessed by the Board ............................................................................................................................. 26 8 Report Conclusions..................................................................................................................................................... 27 9 Report Approval .......................................................................................................................................................... 28 10 References................................................................................................................................................................. 29 11 Appendices ................................................................................................................................................................ 30 Appendix 1: Summary of public representations and agency submissions ................................................................ 1 Appendix 2: Proponent management measures .............................................................................................................. 1 Appendix 3: Permit Conditions – Environmental No: 11111 ...................................................................................... 1 Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 5
1 Approval Process An application for a permit under the Land Use Planning and Approvals Act 1993 (LUPA Act) for the proposal was submitted to Meander Valley Council on 6 January 2022. The proposal is defined as a ‘level 2 activity’ under clause 5(a)(i) and 6(a)(ii), Schedule 2 of the Environmental Management and Pollution Control Act 1994 (EMPC Act), being a quarry extracting, crushing and screening up to 31,250 m3 of rock and gravel per annum. Section 25(1) of the EMPC Act required Council to refer the application to the Board of the Environment Protection Authority (the Board) for assessment under the Act. The application was received by the Board on 28 January 2022. The Board required that information to support the proposal be provided in the form of an Environmental Effects Report (EER) prepared in accordance with the Guidelines issued by the Board on 8 March 2022. Two drafts of the EER were submitted to EPA for review against the Guidelines before it was finalised and accepted on behalf of the Board on 14 June 2022. The EER was released for public inspection for 14 days on 18 June 2022. Advertisements were placed in The Advocate and on the EPA website. The EER was also referred to relevant government agencies for comment. No representations were received. The Executive Director, Environmental Assessments has undertaken determination of the assessment under delegation from the Board. Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 6
2 SD Objectives and EIA Principles The proposal must be considered by the Board in the context of the objectives of the Resource Management and Planning System of Tasmania (RMPS), and the Environmental Management and Pollution Control System (EMPCS). Both sets of objectives are specified in Schedule 1 of the EMPCA. The functions of the Board are to administer and enforce the provisions of the EMPC Act, and to use its best endeavours to further the RMPS and EMPCS objectives. The Board must assess the proposal in accordance with the Environmental Impact Assessment Principles defined in Section 74 of the EMPC Act. Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 7
3 The Proposal
The main characteristics of the proposal are summarised in Table 1. A detailed description is
provided in Part B of the EER.
Table 1: Summary of the proposal’s main characteristics
Activity
Extraction, crushing and screening of a maximum of 31,250 cubic metres of gravel and rock per
annum. Material will be extracted by ripping and drilling/blasting as required.
Location and planning context
Location Meander Road, Meander, TAS 7304 as shown in Figure 1.
Portion of Certificate of Title 37581/1.
Land zoning Agriculture (Meander Valley Local Provisions Schedule, Tasmanian Planning
Scheme)
Land tenure Private Freehold. Proponent is the landowner.
Mining lease 1920 P/M
Lease area 6.02 hectares
Bond $6,700
Activity site
Land Use The site is an existing quarry with some forestry plantation which is now
largely cleared.
Topography Located on lower western facing slopes of Quamby Bluff at approx. 300
metres elevation AHD.
Geology Lower Parmeener Supergroup Golden Valley Group (Predominantly
fossiliferous and erratic rich mudstone, shale, limestone, and sandstone)
Soils Quamby Association. Dermosol.
Hydrology A large stream is located on the southern boundary of the Land with very
small instream dam. A small ephemeral stream is located on north-eastern
edge of The Land. Both these watercourses are unnamed tributaries of
Stockers Creek and eventually the Meander River.
Natural The site is highly modified and contains the following TASVEG categories:
Values extra urban miscellaneous (FUM), agricultural land (FAG), unverified
plantations for silviculture, plantations for silviculture (FPH). On the northeast
side of the site Eucalyptus amygdalina forest and woodland on mudstone
(DAM) was identified by the consultant during the natural values survey. No
threatened flora or fauna species have been recorded or observed during
surveys on the site.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 8Local region
Climate Rainfall occurs throughout the year but with lower totals through summer
months. Annual rainfall ranges from around 800 – 1,400 mm per annum.
Wind direction predominantly north to north-westerly.
Surrounding Predominantly agricultural grazing and scattered residential premises in the
land zoning, land zoned Agriculture surrounding the proposal. The site and adjacent area
tenure and extending to the east of the site is private timber reserve. The site is
uses immediately to the east of the nationally listed Mole Creek Karst system and
is located within a karst low sensitivity area.
Species of There is a recorded Tasmanian wedge-tailed eagle (Aquila audas fleayi) nest
conservation located approximately 2.2 km to the southeast of the site. Individual sightings
significance of a grey goshawk (Accipiter novaehollandiae) approximately 1.6 km to the
north and of a spotted quoll (Dasyurus macalatus macalatus) 1.7 km to the
south of the site.
Proposed infrastructure
Major The machinery and equipment include (with sound power level - SWL
equipment provided):
• Caterpillar wheel loader 2000 662G (SWL: 111 (LAeq))
• Caterpillar excavator 2005 321 (SWL: 104 (LAeq))
• Dozer D9N (SWL: 76 (LAeq))
• Drill rig (supplied by blast/drill contractor) – likely Pantera DP1100i
(SWL: Engine 105, Drilling 110, Rattling 112 (LAeq))
• Transport trucks (medium combination truck & trailer) – approx. SWL:
95‐100 (LAeq))
• 15,000L capacity water cart truck
• Light vehicles for worker transport
• 2 x Crushers (cone and jaw) / vibratory screen – Terex Pegson and
Chieftain1700 (SWL: 120 (LAeq)). This last listed equipment will be
intermittently onsite for campaign-based crushing and screening and
anticipated to be for 7-10 days per annum.
Other Stockpile and crushing pad, earthen bunds, drains, settling pond.
infrastructure
Inputs
Water To be sourced from stormwater system or tankered to site, if required.
Energy Diesel powered equipment will be used on site.
Wastes and emissions
Liquid Stormwater runoff from extraction and stockpile areas.
Atmospheric Dust from crusher, screen, internal and external traffic, and blow-off from
stockpiles.
Solid General refuse including food scraps, paper, and packaging.
General inert wastes such as metal waste to be collected periodically.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 9Noise From crushing and screening equipment, excavator, loader, and dozer
operating on site, and vehicles on site and going to and from the site. Drilling
and blasting will cause intermittent noise and vibration.
Operations
Proposal Activity will commence as soon as all required approvals obtained. Cited in
timetable EER as fourth quarter of 2021-22 financial year.
Operating 0700 to 1700 hours Monday to Saturday (from 0600 to 0700 loading and
hours carting only).
(ongoing) 0700 to 1600 hours Sunday and public holidays (loading and carting only).
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 10Figure 1: Proposed location (Figure B1 of the EER) Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 11
Figure 2: Site plan to Year 5 of mining plan (Figure B-6E of the EER) Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 12
4 Project Rationale and Alternatives The quarry is an existing operation producing a material suitable for both agricultural and general roadwork and civil construction uses in the local area. No alternative locations were considered by the proponent. Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 13
5 Public and Agency Consultation
No public submissions were received during the public consultation period.
The EER was also referred to several government agencies with an interest in the proposal.
Submissions were received from the following:
• Department of State Growth, Mineral Resources Tasmania
• Department of Natural Resources and Environment Tasmania:
o Conservation Assessments and Wildlife Services, Policy, Advice and Regulatory
Services.
The following individuals also provided specialist advice on the EER:
• Regulatory Officer, Environment Protection Authority
• Scientific Officer (Air), Environment Protection Authority
• Scientific Officer (Water), Environment Protection Authority
• Scientific Officer (Noise), Environment Protection Authority
Appendix 1 of this report contains a summary of the government agency submissions received.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 146 Evaluation of Environmental Issues
The following environmental issues are considered relevant to the proposal and have been
evaluated in this section:
1. Air quality
2. Water quality
3. Noise and vibration
4. Waste management and environmentally hazardous materials
5. Biodiversity and natural values
6. Weed and disease management
7. Decommissioning and rehabilitation
General conditions
The following general conditions will be imposed on the activity:
G1 Access to and awareness of conditions and associated documents
G2 Incident response
G3 No changes without approval
G4 Change of responsibility
G5 Change of ownership
G6 Complaints register
G7 Quarry Code of Practice
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 15Issue 1: Air quality
Potential impacts
Dust may be created from multiple sources during quarry operations, such as vegetation
clearing, blasting, excavation, crushing, screening, from stockpiles, and from loading product on
to trucks. Dust may also be created by vehicle movements on unsealed roads.
Dust can be a nuisance to neighbours and a health hazard, particularly to quarry workers. The
nearest residence to the site is located approximately 760 metres to the northeast. Two other
residences are located approximately 905 and 925 metres to the south of the quarry.
The EER notes that the material being extracted comprising of mudstone, shale, limestone, and
sandstone has a high potential to generate dust when extracted and processed but given the
distances to the nearest sensitive receptors, dust from the quarry is unlikely to cause
environmental nuisance.
Management measures proposed in EER
The EER states the following measures will be provided to minimise dust emissions:
• Unsealed road on the site will be watered or sealed to minimise dust generated by
transport on site.
• Trucks will use tarpaulins and load dampening as needed to reduce dust being blown
from loads.
• Raw material will be dampened as necessary prior to crushing.
• Water sprays will be used on the screening machinery chutes to minimise dust from the
product.
• Stockpiles and bunds will be placed to facilitate protection from prevailing winds and
vegetation cover established on bare soils and bunds.
Public and agency comment
No comments were raised with respect to air quality.
Evaluation
The EER proposes sufficient management measures to ensure dust generation is minimised.
Standard conditions have been included to reinforce the proposed management measures.
Condition A1 is included to ensure dust management is undertaken such that dust is contained
within the boundaries of the mining lease. Standard condition A2 requires the control of dust
blowing or spilling from vehicles by use of such measures as dampening loads or covering with
tarpaulins. Condition A3 is included in relation to dust management measures from plant such
as crushing and screening equipment. The requirement for compliance with the Quarry Code of
Practice (QCP) (Condition G7) is also relevant as this specifies requirements for dust
management.
Conditions
The proponent will be required to comply with the following conditions:
G7 Quarry Code of Practice
A1 Control of dust emissions
A2 Covering of vehicles
A3 Control of dust emissions from plant
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 16Issue 2: Water quality
Potential impacts
Sediment and contaminants from disturbed and unvegetated quarry surfaces may be entrained in
water flowing across the surface of The Land, including the access road, entering waterways and
impacting water quality downstream of the site boundary.
Surface water from the site drains to two separate unnamed tributaries of Stockers Creek in
the Meander River catchment. Only a very small portion of the site drains to the ephemeral
tributary to the northeast of the site, with most flow being directed to the western side of the
site and the larger watercourse via existing farm drains.
The EER identifies that the underlying geology is Quamby mudstone, which may contain pyrite
and is potentially acid forming (PAF). Exposure of PAF material can result in acid and
metalliferous drainage (AMD) and release metals associated with mineralised rock, which can
impact on downstream water quality. AMD, once it occurs, can be difficult to manage, requiring
years of mitigation.
Management measures proposed in EER
The EER states the following measures will be provided to minimise water quality impacts:
• The mining plan is designed to avoid the Quamby mudstone layer with quarrying to
occur at the same depth as the existing pit.
• Visual inspections to occur monthly and after each blast for the presence of pyrite, the
Quamby mudstone unit, and for iron staining.
• Any rock material exposed that may contain pyrite will be laboratory-tested for PAF
status.
• Monthly pH testing of the sediment pond will also monitor for AMD.
• Minimisation of areas of disturbance (use of pasture grasses to stabilise and cover areas
of bare soil).
• Minimisation of stormwater ingress and sediment mobilisation through the use of
perimeter drains, cut‐off drains and bunding.
• Access road drains, culverts, spoon‐drains, and other water shedding devices will be
checked quarterly and maintained as required to minimise sediment release into
stormwater.
• A sediment pond of at least 500m3 capacity (a pond surface area of at least 500m2) will
be established and cleaned out every 5 to 7 years to maintain capacity.
• The use of vegetated discharge zone (pasture) to remove fine suspended sediment prior
to water reporting to a watercourse.
• To reduce the risk of spills and contamination of surface waters chemicals, fuels and oils
will not be stored overnight on site and refuelling will be conducted using suitably
designed mobile equipment.
Public and agency comment
No public comment was raised with respect to surface water quality.
Evaluation
Management measures proposed in the EER align with the QCP. The QCP states that total
suspended solids in run-off discharged to inland waters should not exceed 30 mg/L and the
person responsible for the activity is required by condition G7 to comply with the QCP.
Calculations provided in the EER demonstrate appropriate design consideration has been given
to the sizing of the sediment pond and ensure a generous capacity to ensure sediment is
adequately captured. The sediment pond will be constructed offline and an acceptable distance
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 17from the nearest tributary offering a further sediment barrier. The proposed use of diversions for clean stormwater and settling ponds to treat stormwater contaminated by sediments on site are appropriate sediment controls. Standard conditions are considered sufficient to manage water quality impacts from the proposed development. Condition SW1 requires construction and maintenance of perimeter cut-off drains or bunds with sufficient capacity to retain run-off from a 1 in 20-year rainfall event. As the quarry is an existing operation without a settlement pond in place condition SW2 requires the construction of the settling pond within three months of the permit taking effect and condition SW3 specifies maintenance requirements for settling ponds. Condition SW4 requires collection and treatment of polluted stormwater to the extent necessary to prevent serious or material harm, or environmental nuisance. The EPA water specialist supported the proposed management measures with respect to avoiding and monitoring for signs of AMD. To ensure these measures are adopted and maintained, monthly pH testing of water from the sediment pond is required and laboratory analysis for a suite of parameters, should AMD be suspected, is required by condition M1. Condition M2 requires notification to the Director in the event of any of the triggers for the exposure of PAF material or AMD are met. This condition contains a requirement for the development of a PAF management plan. Condition M3 details requirements for the collection of samples or measurements in accordance with the conditions. The potential for water quality impacts is also mitigated by condition DC1, which requires topsoil to be separated and protected from erosion and disturbance, and condition DC2, which requires progressive rehabilitation such that open surfaces vulnerable to erosion are minimised (see also Issue 7). Conditions The proponent will be required to comply with the following conditions: G7 Quarry Code of Practice SW1 Perimeter drains or bunds SW2 Installation of settling pond SW3 Maintenance of settling ponds SW4 Stormwater M1 Monitoring requirements M2 PAF material management M3 Samples and measurements for monitoring purposes DC1 Stockpiling of surface soil DC2 Progressive rehabilitation Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 18
Issue 3: Noise and vibration
Potential impacts
Excavation and vegetation removal, drilling, blasting, ripping, crushing, vibratory screening,
material carting, truck movements and other use of ancillary equipment associated with quarry
operations may cause noise and vibration to be emitted beyond the boundary of The Land
causing nuisance and/or impacts on public health.
The nearest residence within 1,000 metres of the site is located approximately 760 metres to
the northeast. Two other residences are located approximately 905 and 925 metres to the
south of the quarry. All three residences are afforded topographical shielding from quarry noise.
The access route to the quarry, Nuttings Road, is sealed, and the only residence is located at
the junction with the much busier Meander Road.
Blasting will be undertaken by contractors and will occur 2 to 6 times per annum. Crushing and
screening will be undertaken using mobile equipment. The EER advises this will occur over
three campaigns a year, each lasting 7 to 10 days. The EER proposes different hours of
operation to those recommended in the QCP, including loading and transport hours on Sundays
and public holidays.
Management measures proposed in EER
The EER states the following measures will be provided to minimise noise impacts:
• Hours of operation of the quarry will be limited to:
o 0700 – 1700 hours Monday to Saturday, but allowing loading and carting to occur
from 0600 – 1700 hours, and
o 0700 – 1600 hours Sunday and public holidays, loading and carting only.
• The access road will be well maintained to prevent corrugation that contributes to truck
noise.
• Blasts will be designed to comply with the QCP requirements such as ground vibration
and air blast pressure.
Public and agency comment
No public comment was raised with respect to noise emissions.
Evaluation
Given the locations and shielding of the nearest residences within 1,000 metres of the quarry
site, it is considered unlikely that noise will be at a level to cause environmental nuisance at
these sensitive receptors. Condition N1 specifies standard QCP noise emission limits in
relation to noise measured at noise sensitive premises. While the proposed hours of operation
differ from those specified in the QCP, given the location of the quarry it is concluded these can
be accommodated. Condition N2 restricts operating hours to those proposed in the EER.
Condition B1 restricts blasting times to between 1000 hours and 1600 hours Monday to Friday
to minimise any disruption on residences located within 1,000 metres of the quarry. Condition
B2 specifies noise and vibration limits as measured at noise sensitive receptors and condition
B3 requires the person responsible to notify all residents within 1,000 metres radius prior to
blasting.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 19Conditions The proponent will be required to comply with the following conditions: N1 Noise limits N2 Operating hours B1 Blasting times B2 Blasting – noise and vibration limits B3 Notification of blasting Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 20
Issue 4: Waste and environmentally hazardous substances
Potential impacts
Solid waste may escape into the surrounding environment, causing environmental nuisance or
harm. Inappropriate storage, handling and disposal of environmentally hazardous substances
including fuels and oils, may contaminate soil, surface water, groundwater, or other media. No
controlled waste will be produced by the activity.
The EER advises that waste generation by the activity will be minimised, likewise fuels and oils
will not be stored on site. All soil and overburden excavated will be used for rehabilitation or in
the formation of bunds.
Management measures proposed in EER
The EER states the following measures will be provided to minimise risk of harm from wastes or
environmentally hazardous substances:
• Potentially acid forming wastes, if encountered, will be managed in accordance with
specialist advice.
• No machinery servicing will occur on-site, except for emergency repairs or service
requirements. Any waste from undertaking emergency repairs will be stored in a utility
and taken off site each day.
• Appropriate bins for collection of general refuse will be provided.
• Redundant crushing consumables such as screens will be removed for disposal or
recycling as they are replaced.
• Use of accumulated sediment from ponds as saleable product or in site rehabilitation.
• Handling, use and disposing of weed-spraying chemicals will occur in accordance with
manufacturer directions and regulatory requirements.
• Oil and fuel containers will be fitted with automatic shut-off trigger hoses and the
containers held in double-layered bunds of at least 1.5 times the volume of the
container, at least 10m from any drain or the sediment pond.
• A hydrocarbon spill kit will be stored and maintained at the quarry.
• Chemicals, fuels, and oils will not be stored at the quarry overnight and refuelling will
occur using a mobile tanker.
• There is no public water supply for the activity and the operator will need to use offsite
amenities.
Public and agency comment
No public comment was raised with respect to this issue.
Evaluation
The EER management measures are considered appropriate for managing wastes and
environmentally hazardous substances. No specific waste management conditions are
warranted. Standard hazardous material conditions are included. Condition H1 requires
appropriate spill kits to be kept on The Land and maintained in a functional condition.
Conditions H2 and H3 require hazardous materials to be contained and managed to prevent
contamination of soil, groundwater, waterways or any other medium. Standard information
items LO2 and OI1 are included to ensure the proponent is aware of legislation relating to
storage and handling of dangerous good and substances, and best practice in relation to waste
management.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 21Conditions The proponent will be required to comply with the following conditions: H1 Spill kits H2 Storage and handling of hazardous materials H3 Handling of hazardous materials – mobile Other information included in the permit: LO2 Storage and handling of dangerous goods, explosives and dangerous substances OI1 Waste management hierarchy Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 22
Issue 5: Biodiversity and natural values
Potential impacts
Land clearing and quarry operations may disturb, injure, kill rare and threatened flora and fauna
or compromise sensitive native communities. Vehicle and machinery movements associated with
quarry operations increase the risk of native roadkill.
A natural values assessment was undertaken to inform the EER. The field survey found that the
TASVEG mapping of Eucalyptus amygdalina – Eucalyptus obliqua damp sclerophyll (DSC) forest in
the north-eastern edge of the site is incorrect and is Eucalyptus anygdalina forest and woodland
on mudstone (DAM). Only 0.33 hectares of this vegetation will be cleared for quarry activities.
The assessment concluded no rare or threatened communities and species listed under the
EPBC Act, the TSP Act or the NC Act were observed or likely to occur on the Land.
The EER notes the Tasmanian devil, eastern quoll and spotted-tail quoll are known to occur in
the area.
The site is located in a karst low sensitivity area and adjacent to the nationally significant Mole
Creek Karst system.
Management measures proposed in EER
The EER states the following measures will be provided to minimise risk of harm to native
wildlife:
• Undertake education and awareness training for drivers accessing the quarry.
• Limit internal road speed to 20 km/hr from dusk to dawn.
Public and agency comment
No public concerns were raised with respect to this issue.
Conservation Assessments Section (CAS) advised there were no issues of concern in relation to
the proposed quarry and threatened flora and fauna and that no further action is required.
CAS recommended that the preclearance surveys for Block 4 and Block 5 of the mining plan be
repeated prior to the proposed clearance in 2026 and 2027 as the surveys undertaken for this
proposal will be more than 2 years old.
While, based on the information presented in the EER, the risk of karst complications is low, as
the site is located within a limestone karst area. CAS recommends the proponent reports any
karst features encountered during quarrying.
CAS advised if night-time traffic increases by 10% or more this is considered significant
regarding likely impacts on the Tasmanian devil (Sarcophilus harrisii). CAS supports the EER
recommendations for roadkill management and it is recommended that roadkill mitigation
measures be implemented in accordance with the Devil Guidelines available at
https://nre.tas.gov.au/conservation/development-planning-conservation-assessment/survey-
guidelines-for-development-assessments .
Evaluation
Given the conclusions of the natural values assessment and advice from CAS, the management
measures proposed in the EER are considered sufficient to manage impacts on natural values.
No specific conditions are imposed in the permit.
Conditions
No conditions are imposed.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 23Issue 6: Weed and disease management
Potential impacts
Weeds, pests, and pathogens can disrupt environmental, agricultural, and silvicultural
ecosystems. Ground disturbance associated with quarry operations may facilitate weed
propagation across The Land and beyond its boundaries. Vehicle and machinery movements
associated with the quarry may import weeds to The Land. Vehicle and machinery movements
or contamination of quarry products may cause weeds to spread from The Land to other
locations.
Three plant species listed as a Declared Weed in the Weed Management Act 1999 or a Weed of
National Significance in the EPBC Act were recorded on The Land, including blackberry, slender
thistle and gorse. A number of additional weeds were recorded across the site including spear
thistle, variegated thistle, wild teasel, capeweed and briar rose. These weeds were observed in
significant quantities across the site.
Management measures proposed in EER
The EER states the following management measures to minimise weed impacts:
• A weed and disease management plan will be developed and implemented as part of the
quarry operation, in accordance with the Weed and Disease Planning and Hygiene
Guidelines (DPIPWE 2015).
• A weed spraying program will be developed in consultation with accordance with the
Weed and Disease Planning and Hygiene Guidelines (DPIPWE 2015).
• Heavy machinery will be brought into the quarry in a clean condition, free of weed
propagules, clods of dirt and vegetative matter.
Public and agency comment
No public concerns were raised with respect to weed and disease management.
CAS supported the proposal to develop a weed management plan and recommended, due to
the presence of susceptible native flora species, the Weed and Disease Management Plan
includes measures to stop the introduction and spread of Phytophthora cinnamomi (PC) to the
site. Practical information on how to minimise the risks of introducing and spreading PC can be
found in the manual Keeping it clean - A Tasmanian field hygiene manual to prevent the spread of
freshwater pests and pathogens.
Evaluation
A number of environmentally significant weeds are present on The Land and the risk of
spreading weeds from The Land must be controlled. The management measures proposed in
the EER are supported and considered adequate to control this risk. Condition OP1 requires
machinery being brought onto The Land to be in a clean condition. Condition OP2 requires the
site to be kept substantially clear of weeds. Given the extent of the weeds observed on the site
Condition OP3 requires the preparation, approval and implementation of a weed management
plan within 2 months of the permit conditions taking effect.
Conditions
The proponent will be required to comply with the following conditions:
OP1 Machinery washdown
OP2 Weed management
OP3 Weed and disease management plan
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 24Issue 7: Decommissioning and rehabilitation
Potential impacts
Quarry extraction activities will disturb up to 3.5 hectares of land. Rehabilitation of the site is
necessary to stabilise extraction areas, prevent ongoing erosion and ensure the site is safe and
suitable for future land uses. The quarry is situated on private agricultural land.
Management measures proposed in EER
The EER advises that progressive rehabilitation will be minor due to the pit being ‘open-cut’ and
the necessary space required for the establishment of benches and for operations to occur.
The EER states the following management measures with respect to rehabilitation:
• Progressive rehabilitation will occur of areas no longer used for quarry operations to
establish agricultural pasture. This will include preparing disused quarry surfaces to
allow water to infiltrate, applying topsoil, overburden and sediment, planting seed and
monitoring and remedial works are required to address issues such as weeds,
germination control, landform stability.
• Development of a Decommissioning and Rehabilitation Plan in the event of permanent
closure. This will include processes to ensure the orderly and safe removal of machinery
and equipment, establishment of sufficient and suitable vegetation to minimise risk of
dust generation and soil erosion and a monitoring program to review the efficacy of the
rehabilitation.
Public and agency comment
No public or agency comment was raised with respect to decommissioning and rehabilitation.
Evaluation
The measures proposed in the EER align with the QCP and are considered sufficient to manage
risks associated with site decommissioning and rehabilitation. Stockpiling of surface soil for
rehabilitation is required by condition DC1. Progressive rehabilitation is required by condition
DC2, which also limits the maximum disturbed area to 3.5 hectares at any time. Condition
DC3 requires the person responsible to notify the Director of temporary suspension of the
activity and imposes care and maintenance requirements. Condition DC4 requires the
proponent to notify the Director of permanent cessation. Condition DC5 requires
rehabilitation to be carried out in accordance with the QCP and within 12 months of cessation
and monitored for at least three years. This is sufficient for a quarry of this size and complexity
without needing the development of a site-specific decommissioning and rehabilitation plan.
Conditions
The proponent will be required to comply with the following conditions:
DC1 Stockpiling of surface soil
DC2 Progressive rehabilitation
DC3 Temporary suspension of activity
DC4 Notification of cessation
DC5 Rehabilitation on cessation
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 257 Issues not assessed by the Board No other issues have been raised during the assessment process. Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 26
8 Report Conclusions
This assessment has been based on the information provided by the proponent, Wayne Johnston,
in the permit application and the case for assessment (the EER).
This report incorporates specialist advice provided by EPA scientific and regulatory staff, the
Department of Natural Resources and Environment Tasmania, and other government agencies.
It is concluded that:
1. the RMPS and EMPCS objectives have been duly and properly pursued in the assessment of
the proposal; and
2. the assessment of the proposal has been undertaken in accordance with the Environmental
Impact Assessment Principles; and
3. the proposal is capable of being managed in an environmentally acceptable manner such
that it is unlikely that the RMPS and EMPCS objectives would be compromised, provided
that the Permit Conditions - Environmental No. 11111 appended to this report are
imposed and duly complied with.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 279 Report Approval Environmental Assessment Report and conclusions, including environmental conditions, adopted: Martin Read EXECUTIVE DIRECTOR, ENVIRONMENTAL ASSESSMENTS Acting under delegation from the Board of the Environment Protection Authority Date: 9 August, 2022 Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 28
10 References Van Diemen Consulting (2022) Kryden Quarry, Meander Environmental Effects Report (dated 5 June 2022) for Wayne Johnston; New Town, Tasmania. DPIPWE Weed and Disease Planning and Hygiene Guidelines – Preventing the spread of weeds and disease in Tasmania (March 2015), Department of Primary Industries, Parks, Water and Environment, Hobart, Tasmania. Environment Protection Authority (2017) Quarry Code of Practice 3rd Edition; Hobart, Tasmania. Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 29
11 Appendices Appendix 1 Summary of public and agency submissions Appendix 2 Table of proponent management measures Appendix 3 Permit Conditions - Environmental No: 11111 Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 30
Appendix 1: Summary of public and agency submissions
Table 1: Matters raised during public consultation period
Representation Comments and Issues Further EPA Comments
No. / Agency Information
Requested
Conservation Natural Values Surveys No CAS comments are
Assessments CAS notes that EER states that minor native vegetation clearance will be required incorporated into the
Section (CAS), for Block 4 and Block 5 as illustrated in Figures B-6d and Figure B-6e occurring in evaluation on potential
NRET approximately 2026 and 2027. CAS recommends preclearance surveys for Block 4 impacts on biodiversity
and Block 5 if they require native vegetation clearance after 2024; as CAS and natural values (Issue
considers all surveys over two years old to be out of date, due to the potential for 5) and weed and disease
management (Issue 6).
changes in the environment where additional threatened species may now present,
or the potential take may have increased or decreased at the proposed location.
The EER indicates that the vegetation is different to what is listed on TASVEG;
however, the report sometimes refers to DAM and sometimes DOB, for example
p50 (map) = DAM, p69 = DAM, p71 = DOB, p88/89 = DOB). CAS recommends
that the EER be updated to accurately reflect ground truthing of native vegetation.
Geoconservation
The EER indicates that the proposal is located within a limestone karst area. Based
on the information provided, the risk of karst complications is assessed as low in
this case. However, given the presence of karst in Golden Valley Group limestone
at Golden Valley, CAS recommends that the proponent report karst features
which may be encountered during quarrying, as per practices adopted at other
limestone quarries.
Threatened Fauna
The EER on page ten states that 20 loads delivered per day (daily truck
movements) for a 6-day week within the operating hours of 0600 – 1700 Monday
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 1Representation Comments and Issues Further EPA Comments
No. / Agency Information
Requested
to Saturday and 0700 – 1600 Sundays. Please note Tasmanian Devil Survey Guidelines
and Management Advice for Development Proposals (The Devil Guidelines) considers
night time as between one hour before dusk and hour after dawn. Kryden quarry's
current daily truck movement are unknown, and it is unclear whether roadkill
mitigation measures are currently being implemented. If there is going to be an
increase of night-time traffic of more than 10%, this is considered significant
regarding likely impacts on the Tasmanian devil (Sarcophilus harrisii). CAS supports
the EER recommendations for roadkill management and it is recommended that
roadkill mitigation measures be implemented in accordance with the Devil
Guidelines available at https://nre.tas.gov.au/conservation/development-planning-
conservation-assessment/survey-guidelines-for-development-assessments.
Weeds and Diseases
CAS notes the increased quarry activity proposed elevates the risk of weed
infestation and dispersal. There are numerous weeds declared under the Weeds
Management Act 1999 recorded within 5km of the mining lease boundary. CAS
supports the EER commitment to develop and implement a Weed and Pathogen
Management Plan, in accordance with DPIPWE (2015) Weed and Disease Planning
and Hygiene Guidelines - Preventing the spread of weeds and diseases in Tasmania. The
EER states that the development proposal is not within a Phytophthora cinnamomi
(PC) management zone, with no signs of PC observed; however, CAS notes that
the EER identified susceptible native flora species within the native vegetation that
supports habitat values for threatened species. CAS recommends that the Weed
and Pathogen Management Plan includes measures to stop the introduction and
spread of PC to the site. Practical information on how to minimise the risks of
introducing and spreading PC can be found in the manual Keeping it clean - A
Tasmanian field hygiene manual to prevent the spread of freshwater pests and
pathogens.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 2Representation Comments and Issues Further EPA Comments
No. / Agency Information
Requested
Mineral MRT noted a discrepancy as to the shape of the Mining Lease and the shape of No This is a matter for
Resources what is defined as “the Land” from the EER permit point of view. It appears that MRT
Tasmania (MRT), this is done to factor in the road access to Nuttings Road and to facilitate an area
Department of which is for the construction of a sediment retention pond. The proponent will
State Growth need to resolve this matter with MRT.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 3Appendix 2: Table of proponent management measures
Table 1: Proponent management measures (Table 6 of EER)
No. Description Timeframe EER Reference
Roads within the boundary of the premises will be watered or sealed to minimise the risk
1 of environmental nuisance. Trucks will utilise proven dust control measures such as
tarpaulins, load dampening when travelling by public roads and carrying loads containing a
significant quantity of material that passes a 4‐millimetre sieve.
Standard industry practice for dust control will be applied – Ongoing from project C.1 AIR EMISSIONS ‐
commencement DUST
• Raw material to have a suitable water content level prior to crushing and/or to
utilise the installed sprayers on the output chute to minimise dust emissions from
2
an otherwise dry product. Water will be accessed from the sediment basin or
obtained with a dedicated water tanker.
• Establish grass/vegetative cover on bare soil areas to minimise wind erosion.
A sediment pond of at least 500m3 capacity (a pond surface area of at least 500m2) will be Prior to the opening
3 established and cleaned out every 5 to 7 years to maintain capacity. of the extraction face
C.2 WATER QUALITY
No chemicals, fuels or oils will be stored within the pit overnight and refuelling of
4 (SURFACE,
equipment will be carried out using a mobile tank on a trailer or by a fuel pod
DISCHARGE AND
transported in a 4WD utility.
Ongoing from project GROUNDWATER)
Cut‐off drains and drains around and internal to the Quarry will be maintained and commencement
5
additional drains constructed where required to direct catchment runoff around the
Quarry.
Access road drains, culverts, spoon‐drains, and other water shedding devices will be
6
checked quarterly and maintained as required to minimise sediment release into
stormwater.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 1Sediment accumulation rates in the sediment ponds will be monitored and the maintenance
7 program revised as required – conducted quarterly. Accumulated sediment will be reused
as part of the saleable product or for application onto disused areas as part of site
rehabilitation.
8 The Quamby mudstone geological unit will be avoided, as far as reasonably practical.
Hours of operation are to be restricted to
• 0600 – 1700 Monday to Saturday (From 0600 to 0700 hrs there will only be loading
9 and carting of material from the Quarry; no screening, crushing, drill/blast)
• 0700 – 1600 Sundays and Statewide public holidays (there will only be loading and Ongoing from project C.3 NOISE
carting of material from the Quarry; no screening, crushing, drill/blast) commencement EMISSIONS
Access tracks and haul roads will be well maintained to prevent corrugation that contributes
10 to truck noise, and truck drivers should be encouraged, where possible, to use access
roads which have the least impact on the community.
No machinery servicing, except for emergency repairs or service requirements, will be
11 conducted within the quarry. Wastes generated from machinery repairs will be disposed
of at a permitted refuse disposal site.
General refuse (e.g., food wrappers) will be collected in waste bins provided on‐site for Ongoing from project
12 C.4 WASTE
general refuse. commencement
Redundant crushing consumables (e.g., screens, miscellaneous parts) will be
13
removed for disposal/recycling.
Weed spraying chemicals will be handled, used, and disposed of in accordance with the
14 C.5
manufacturer’s directions and relevant regulations.
Ongoing from project ENVIRONMENTALL
When in the Quarry, fuel and oil containers will be contained in double skinned/bunded commencement Y HAZARDOUS
15 pods fitted with a trigger hose with automatic shut off function to avoid a large spillage. GOODS
They will be located at
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 2least 10 m from any drain and the sediment pond and will be bunded (moveable bunds) to
a capacity at least 1.5 times the volume of the container.
One hydrocarbon spill kit will be stored at the Quarry to use in the event of a spillage and
16
will be replaced as and when required.
The management approach for internal road use is –
17 • Undertake education and awareness training for truck drivers accessing the Quarry, Ongoing from project C.7
and commencement NATURA
L VALUES
• Limit internal road speed to 20 km/hr from dusk to dawn.
A Weed and Pathogen Management Plan will be developed and implemented as part of WPMP submitted to
18 the quarry operation guided by the Weed and Disease Planning and Hygiene Guidelines ‐ EPA within 60 days of
Preventing the spread of weeds and diseases in Tasmania (Department of Primary Industries, permit being granted
Parks, Water and Environment, 2015).
C.6 WEEDS, PESTS
19 A Weed Spraying Program will be developed in consultation with a weed spraying Ongoing from the AND
contractor who will implement the program. EPA approval of the PATHOGENS
WPMP
20 Heavy machinery will be brought into the quarry in a clean condition; free of weed Ongoing from project
propagules, clods of dirt and vegetative matter. commencement
21 If dust is observed to be creating a nuisance, the Proponent will use dust suppression
techniques until such time as the adverse weather conditions subside.
Ongoing from project
commencement C.9 MONITORING
Sediment traps will be monitored to ensure the total capacity of the impoundment is not
22 reduced by more than half. If accumulated sediment is excessive, the trap will be cleared
out and the spoil set aside with overburden to be blended with product or used in future
rehabilitation works.
Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 3Appendix 3: Permit Conditions – Environmental No: 11111 Environmental Assessment Report – W Johnston – Kryden Quarry Intensification, Meander 1
PCE 11111 (r1) 1/16
PERMIT PART B
PERMIT CONDITIONS - ENVIRONMENTAL No. 11111
Issued under the Environmental Management and Pollution Control Act 1994
Activity: The operation of a quarry and materials handling (ACTIVITY TYPE:
Crushing, grinding, milling or separating into different sizes (rocks, ores or
minerals))
KRYDEN QUARRY, MEANDER ROAD
MEANDER TAS 7304
The above activity has been assessed as a level 2 activity under the Environmental Management
and Pollution Control Act 1994.
Acting under Section 25(5)(a)(i) of the EMPCA, the Board of the Environment Protection
Authority has required that this Permit Part B be included in any Permit granted under the Land Use
Planning and Approvals Act 1993 with respect to the above activity.
Municipality: MEANDER VALLEY
Permit Application Reference: DA 2022/0166
EPA file reference: 22/1061
Date conditions approved: 09 August 2022
______________________________________________
Signed: ______________________________________________
DELEGATE FOR THE BOARD OF THE ENVIRONMENT
PROTECTION AUTHORITY
DELEGATE FOR THE BOARD OF THE ENVIRONMENT PROTECTION AUTHORITYPCE 11111 (r1) 2/16
DEFINITIONS
Unless the contrary appears, words and expressions used in this Permit Part B have the meaning
given to them in Schedule 1 of this Permit and in the EMPCA. If there is any inconsistency
between a definition in the EMPCA and a definition in this Permit Part B, the EMPCA prevails to
the extent of the inconsistency.
ENVIRONMENTAL CONDITIONS
The person responsible for the activity must comply with the conditions contained in Schedule 2 of
this Permit Part B.
INFORMATION
Attention is drawn to Schedule 3, which contains important additional information.
DELEGATE FOR THE BOARD OF THE ENVIRONMENT PROTECTION AUTHORITY
09 August 2022PCE 11111 (r1) 3/16
Table Of Contents
Schedule 1: Definitions....................................................................................................................... 5
Schedule 2: Conditions........................................................................................................................7
Maximum Quantities................................................................................................................. 7
Q1 Regulatory limits ..............................................................................................7
General.......................................................................................................................................7
G1 Access to and awareness of conditions and associated documents.................. 7
G2 Incident response...............................................................................................7
G3 No changes without approval............................................................................7
G4 Change of responsibility................................................................................... 7
G5 Change of ownership........................................................................................ 7
G6 Complaints register........................................................................................... 8
G7 Quarry Code of Practice....................................................................................8
Atmospheric...............................................................................................................................8
A1 Control of dust emissions..................................................................................8
A2 Covering of vehicles......................................................................................... 8
A3 Control of dust emissions from plant................................................................8
Blasting...................................................................................................................................... 8
B1 Blasting times....................................................................................................8
B2 Blasting - noise and vibration limits................................................................. 9
B3 Notification of blasting......................................................................................9
Decommissioning And Rehabilitation.......................................................................................9
DC1 Stockpiling of surface soil..............................................................................9
DC2 Progressive rehabilitation............................................................................... 9
DC3 Temporary suspension of activity.................................................................. 9
DC4 Notification of cessation...............................................................................10
DC5 Rehabilitation on cessation...........................................................................10
Hazardous Substances..............................................................................................................10
H1 Spill kits.......................................................................................................... 10
H2 Storage and handling of hazardous materials................................................. 10
H3 Handling of hazardous materials - mobile...................................................... 10
Monitoring............................................................................................................................... 11
M1 Monitoring requirements................................................................................11
M2 PAF material management ............................................................................ 11
M3 Samples and measurements for monitoring purposes.................................... 12
Noise Control........................................................................................................................... 12
N1 Noise emission limits...................................................................................... 12
N2 Operating hours...............................................................................................12
Operations................................................................................................................................ 12
OP1 Machinery washdown................................................................................... 12
OP2 Weed management........................................................................................13
OP3 Weed and disease management plan ........................................................... 13
Stormwater Management......................................................................................................... 13
SW1 Perimeter drains or bunds............................................................................ 13
SW2 Installation of settling pond......................................................................... 13
SW3 Maintenance of settling ponds..................................................................... 13
SW4 Stormwater...................................................................................................13
Schedule 3: Information.................................................................................................................... 15
Legal Obligations.....................................................................................................................15
LO1 EMPCA........................................................................................................ 15
DELEGATE FOR THE BOARD OF THE ENVIRONMENT PROTECTION AUTHORITY
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