Landfill_Management_Plan_2011_Part_1

Landfill_Management_Plan_2011_Part_1
Alice Springs Town Council
Alice Springs Landfill
Landfill Environment Management Plan (LEMP)
Commencement Date: 1 February 2011
Alice Springs Town Council
Alice Springs Landfill
Commencement Date: 1 February 2011
Principal Contacts
Paul Lightbody
Gavin Reeves
October 2010
Ref No 20091467RA2
Table of Contents
1 Introduction
1.1 1.2 1.3 1.4 1.4.1 1.5 1.5.1 1.6 1.7 Background
Management Authority
Compliance with Reference Documents
The LEMP
Use of the LEMP
Objectives of the Landfill Environment Management Plan
Framework and Validity Period for LEMP
Landfill Management Approach
Reporting of Environmental Incidents, Pollution or Potential Pollution
1 1 2 2 2 2 2 3 3 3 2 Site Overview
2.1 Site Location
2.2 Site Description
2.3 Land Title Details
2.4 Zoning and Land Use
2.5 Surrounding Land Use
2.6 100 Year Flood Area
2.7 Topography
2.8 Geology
2.9 Hydrogeology
2.10 Climate
2.10.1 Rainfall
2.10.2 Wind
2.11 Surface Water Management
2.12 Services
2.13 Waste Disposal and Licence Conditions
5 5 5 5 5 5 6 6 6 7 7 8 9 9 10 10 3 Environmental Management System
3.1 Legislative Requirements, Standards and Codes of Practice
3.2 Management Structure and Responsibilities
3.3 Training
3.4 Recording and Reporting Procedures
3.4.1 Record Keeping
3.4.2 Daily Diary
3.4.3 Weekly Inspection and Report
3.4.4 Quarterly Inspection and Report
3.4.5 Annual Operations and Monitoring Report
3.5 Framework for Internal and External Reporting
3.5.1 Internal Environmental Audits
3.5.2 Communication with NRETAS
3.5.3 Communication with Community
3.6 Complaints
3.7 Non-Conformance and Corrective / Preventative Action
11 11 11 16 17 17 18 18 18 18 19 19 19 20 20 20 Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
ii
4 Site Operations
4.1 General Operations
4.2 Site Control
4.2.1 Hours of Operation
4.2.2 Staffing
4.3 Access and Traffic Management
4.3.1 Gatehouse and Entrance Facilities
4.3.2 Site Entrance
4.3.3 Internal Access Roads
4.4 Signage
4.5 Waste Transfer Station
4.6 Landfilling
4.6.1 Residual Waste Generation Rate
4.6.2 Remaining Landfill Capacity Review
4.6.3 Landfill Site Development and Proposed Staging
4.7 Recycling and Resource Recovery Tip Shop
4.7.1 General
4.7.2 Tip Shop Status and Management
4.8 Hazardous Waste Compound
4.9 Green Waste Processing
4.10 Glass Crushing Facility
4.11 Plant and Equipment
22 22 22 22 22 23 23 23 23 24 24 25 25 25 26 26 26 26 27 27 28 28 5 Waste Management
5.1 Waste Process Flow
5.2 Residual Wastes Disposed of at the Landfill
5.3 Reuse and Recycling
5.3.1 Reusable and Recyclable Materials Drop-off
5.4 Waste Management Operations
5.4.1 Receiving Waste
5.4.2 Waste Drop-off
5.4.3 Waste Disposal and Compaction
5.4.4 Cover Stockpiles
5.4.5 Processing of Materials
5.4.6 Resale of Materials
5.4.7 Daily Cover
5.5 Hazardous Waste
5.5.1 Hazardous Waste Drop-off
5.5.2 Hazardous Waste Handling
5.5.3 Hazardous Waste Storage and Collection
29 29 29 30 30 30 30 31 32 34 34 35 35 35 35 35 35 6 Groundwater Management
6.1 Groundwater Monitoring Wells
6.2 Groundwater Monitoring
6.3 Reporting
37 37 37 39 7 Leachate Management
7.1 General
7.2 Leachate Monitoring Wells
7.3 Leachate Monitoring
7.4 Reporting
40 40 40 40 42 Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
iii
8 Surface Water, Erosion and Mud Management
8.1 Surface Water Controls
8.1.1 External Drainage
8.1.2 Internal Drainage
8.2 Mud and Slurry Control
8.2.1 Future Surface Water and Erosion Management
8.3 Surface Water Monitoring
8.4 Surface Water and Erosion Maintenance
43 43 43 43 43 44 44 44 9 Landfill Gas Management
9.1 Landfill Gas Production
9.2 LFG Management
9.3 LFG Monitoring
9.4 Additional Information
46 46 46 47 47 10 Vegetation and Visual Impact Management
10.1 General
10.2 Implementation
10.3 Vegetation Monitoring
48 48 48 48 11 Air Quality and Noise Management
11.1 Dust Management
11.2 Litter Control
11.3 Noise
11.4 Odour
50 50 52 53 54 12 Bird, Vermin, Pest and Weed Management
55 13 Asbestos Management
13.1 Asbestos
13.2 Asbestos Management Roles and Responsibilities
13.2.1 Council
13.2.2 Operator
13.2.3 Disposer (Customer)
13.3 Asbestos Management Minimum Procedures
13.3.1 Asbestos Acceptance
13.3.2 Receiving Asbestos
13.3.3 Handling Asbestos
13.3.4 Disposal and Covering of Asbestos
13.3.5 Historically Disposed Asbestos
56 56 56 56 57 57 57 57 58 58 58 59 14 Used Tyres Management
14.1 Used Tyres
14.2 Used Tyre Acceptance
14.3 Used Tyre Management
14.4 Receiving Used Tyres
14.5 Temporary Storage of Used Tyres
14.6 Disposal of Used Tyres
61 61 61 61 61 62 62 15 Emergency Issues
15.1 Emergency Response Plan
15.1.1 Emergency Response Training
64 64 64 Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
iv
15.1.2 15.1.3 15.1.4 15.1.5 15.1.6 15.1.7 15.1.8 15.1.9 15.1.10 15.2 15.3 16 Unauthorised Deposition of Hazardous Substances
Hazardous Liquid Storage Leakage
Flooding
Groundwater Contamination
Landfill Gas
Earthquake
Explosion
Fire Prevention
Summary
Fire Prevention
Evacuation Plan or Procedures
64 64 65 65 65 65 65 65 65 66 67 Closure and Post Closure Management
16.1 Preamble
16.2 Capping Design, Materials and Construction
16.2.1 Phytocap Cover System
16.2.2 Phytocap Construction
16.3 Surface Water Management
16.4 LFG Management
16.5 Revegetation
16.6 Cap Specification and Drawings
16.7 Final Landform, Visual Amenity and Future Use
16.8 Reporting
16.9 Final Capping Progress
16.10 Post Closure Management
68 68 68 68 68 68 69 69 69 69 70 70 70 Tables
Table 2-1 Table 3-1 Table 4-1 Table 5-1 Table 5-2 Table 6-1 Table 6-2 Table 6-3 Table 7-1 Table 7-2 Table 8-1 Table 9-1 Table 10-1 Table 11-1 Table 11-2 Table 11-3 Table 11-4 Table 12-1 Table 13-1 Table 14-1 Table 15-1 Table 15-2 8 12 25 31 33 37 38 39 41 42 44 47 49 50 52 53 54 55 60 63 66 67 Rainfall and Evaporation Data
ASTC Landfill Management Structure and Responsibilities
Weighbridge Data for 2008/09
Records of Waste Types and Quantities
Waste Disposal Performance Criteria
Groundwater Well Summary
Groundwater Monitoring Schedule
Groundwater Analysis Requirements – All wells
Leachate Monitoring Schedule
Leachate Analysis Requirements – All wells
Surface Water, Erosion and Mud Maintenance Schedule
Landfill Gas Monitoring Schedule
Vegetation and Screening Monitoring Schedule
Procedures for Dust and Mud/Slurry Control
Procedures for Litter Control
Procedures for Noise Control
Procedures for Odour Control
Procedures for Bird, Vermin, Pest and Weed Management
Procedures for Asbestos Management
Procedures for Tyre Management
Emergency Response Schedule
Procedures for Fire Fighting and Prevention
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
v
Figures
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Site Location Plan
Site Layout and facilities
Waste Materials Flow Schematic
Environmental Monitoring Plan
Surface Water Management Plan
Proposed Staging Plan
Proposed Final Landform
Appendices
Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I Reporting Proformas Land Title Details Groundwater Monitoring Well Logs Asbestos Containing Materials NRETAS Environment Protection Licence – EPL11 Hazardous Waste Facility Layout Tipshop Management and Operation Guidelines ASTC – Mulch Standards CAT Handbook Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
vi
1
1.1
Introduction
Background
The Department of Natural Resources, Environment, The Arts and Sport (NRETAS) requires that waste
management facilities submit for approval, review and maintain a Landfill Environment Management Plan (LEMP).
Operating a waste management facility in the Northern Territory is a prescribed activity of environmental
significance which must be permitted by an environmental authorisation in the form of a Licence under the Waste
Management and Pollution Control Act. The purpose of the LEMP for the Alice Springs Landfill (the site) is to set
out environment protection objectives, procedures, management and monitoring throughout the sites operation,
development and closure that will result in the site being operated in compliance with the Environment Protection
Licence (the Licence) granted to the Alice Springs Town Council (Council).
Overall responsibility for the site ultimately rests with the Licensee. Landfill operations will be managed by the
Council or a contractor engaged to operate the facility on behalf of the Council (the Operator). Section 3.2 defines
the roles and responsibilities for the management and operation of the site.
To ensure that the environment protection measures of the LEMP are adhered to by the landfill Operator, the
LEMP will form part of the tender documents for the operation of the landfill.
In summary, the following are addressed in this LEMP:
•
Current site description and associated details;
•
Framework for the Environment Management System;
•
Management and/or monitoring of;
-
Groundwater;
-
Leachate production;
-
Surface water;
-
Landfill gas;
-
Asbestos;
-
Used tyres;
-
Dust, mud and slurry;
-
Noise, odour and litter;
-
Birds, vermin and weeds;
•
Concept details for progressive closure and landscaping of the site, together with monitoring and
management strategies;
•
Database of site records and requirements for record keeping and reporting documentation to ensure the
site is managed consistently with current licence conditions and NRETAS requirements; and
•
Emergency response procedures to ensure that the integrity of the site as a waste management facility is
maintained, while protecting the environment.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
1
1.2
Management Authority
The management authority (Licensee) responsible for the landfill will be:
Alice Springs Town Council (ASTC)
PO Box 1071
Alice Springs NT 0871
Ph: (08) 8950 0500
Fax: (08) 8953 0558
1.3
Compliance with Reference Documents
In establishing this document the following regulatory requirements and guidelines have been considered:
1.4
1.4.1
•
Northern Territory of Australia Waste Management and Pollution Control Act, (the Act);
•
Department of Natural Resources, Environment, the Arts and Sport Environmental Protection Licence,
Ref: EPL 11 (the Licence);
•
The Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern
Territory, 2003 (the Guidelines)
•
Landfill Environment Management Plan, (LEMP Guideline) NRETAS, document supplied to Council
•
Northern Territory of Australia Workplace Health and Safety Act,
•
Asbestos Management Guidelines (NT Department of Health and Families, 2008)
The LEMP
Use of the LEMP
It will be the responsibility of the Licensee to maintain this document in a useable form and to consolidate the
documentation relevant to the operation of the site in a form that is accessible to site staff, contractors and
NRETAS.
The current Licence requires that this LEMP is independently reviewed every three years after commencement of
the Licence and the Licence holder shall provide a proposed scope of the review to the Chief Executive Officer no
later than 28 days prior to the commencement of the review.
The Licensee shall provide the results of the review and any proposed amendments to the Chief Executive Officer
within 28 days of the review being completed. The Licensee shall then update the LEMP with amendments
approved by the Chief Executive Officer.
A copy of the most up to date version of this document shall remain on site at all times for easy reference for site
manager and staff.
1.5
Objectives of the Landfill Environment Management Plan
This LEMP details actions and procedures to be carried out during the operation and post-closure phases of the
landfill in order to mitigate adverse impacts on the environment where practicable.
The purpose of the environmental management process is to:
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
2
1.5.1
•
produce a framework for control of design, construction, operational and post-closure impacts, including
practicable and achievable performance requirements and a system of monitoring, reporting and
implementing corrective action
•
minimise adverse effects to the environment
•
provide information for the landfill licence
•
provide evidence of compliance with legislation, policies, guidelines and requirements of relevant
authorities
•
provide a guide for the landfill operator to meet various statutory requirements
•
provide the community with assurance that management of the landfill will be conducted in an
environmentally acceptable manner
Framework and Validity Period for LEMP
This LEMP has been prepared to address the management of the Alice Springs Landfill over the life of the site.
Therefore this LEMP shall be reviewed by ASTC (i.e. the Licensee) at least once every three years and may
involve consultation and negotiation with the landfill operator. Review and updating of the LEMP will be necessary
due to the evolving nature of disposal activities and practices, and shall reflect the changes to the site, operations,
technology and best practice since the previous review.
1.6
Landfill Management Approach
There is the potential for environmental impacts to be generated by the landfill. However, these potential impacts
will be ameliorated by careful management, appropriate control measures and regular environmental monitoring.
Major issues concerning the landfill are:
•
site management and operations, including monitoring of the characteristics of incoming waste and
regular topographic surveys;
•
waste to landfill diversion and reduction activities;
•
erosion and stormwater management;
•
leachate management;
•
landfill gas management;
•
nuisance avoidance, including noise, air emissions, dust and odour, visual amenity, litter control, weed
control, pest control and fire control;
•
post-closure management, maintenance and monitoring.
To control and manage the above issues, Alice Springs Town Council will ensure that environmental management
measures, as listed in this report, will be implemented and continually reviewed.
1.7
Reporting of Environmental Incidents, Pollution or Potential Pollution
The Operator shall immediately notify Council of any circumstance giving rise to environmental harm or potential
environmental harm. The Operator shall provide Council with the following information:
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
3
•
the identity of the person giving notice;
•
the time and date of the circumstance;
•
the circumstance causing or threatening to cause environmental harm;
•
the place where the circumstance occurred or is likely to occur;
•
how the environmental harm occurred, is occurring, or may occur;
•
the attempts made to prevent, reduce, control, rectify, or clean up the pollution or resultant environmental
harm caused or threatening to be caused by the circumstance.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
4
2
2.1
Site Overview
Site Location
The landfill is located on Commonage Road, Alice Springs. Lot 7902 is situated south-west of Heavitree Gap, north
of the Alice Springs Waste Water Stabilisation Ponds and approximately 500 m west of the Todd River (see Figure
1).
2.2
Site Description
The Landfill site is located in the Ilparpa Valley, in the foothills of the Heavitree Range, to the south west of
Heavitree Gap. The property comprises approximately 56.6 hectares bounded by the Heavitree Range to the
north, Inarlenge (i.e. Alice Springs Town Camp more commonly known as Little Sisters) to the north-east and the
waste water stabilisation ponds to the south.
The extent of the current landfilling footprint is approximately 28 hectares and has been used as a landfill since the
sixties. Figure 2 shows the extent of the current landfilling footprint.
Based on anecdotal information, areas within the site boundary and to the west and north of the current landfilling
footprint may have been used for waste disposal since the 1930s.
2.3
Land Title Details
The landfill is located on Lot 7902, Township of Alice Springs. Lot 7902 is covered by Crown Lease in Perpetuity
(CLP) 1968 which was issued under the Northern Territory Crown Lands Act in December 2002 for the purposes of
Municipal Waste Management Facility and Ancillary Uses. The Landfill Environment Management Plan for the site
covers the whole of the allotment and is subject to reservations and provisions, conditions and covenants
associated with CLP 1968.
2.4
Zoning and Land Use
According to the Northern Territory Planning Scheme for Alice Springs, the present zoning of the site is
“community purpose”, this zoning allows primarily for “community services and facilities”.
From the Planning Scheme:
1. The primary purpose of Zone CP is to provide for community services and facilities, whether publicly or privately
owned or operated, including facilities for civic and government administration.
2. Design is expected to incorporate landscaping that will enhance the visual appearance of the development. The
development of residential accommodation is to only be in association with and ancillary to the primary use of the
land.
2.5
Surrounding Land Use
The area immediately to the west of the site is undeveloped Crown Land under native title that is also zoned CP –
“community purpose”.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
5
Adjacent to the site on the southern side of Commonage Road and extending for the full extent of the site is the
Waste Water Stabilisation Ponds which are managed by Power and Water Corporation. This site is zoned U “utilities”. It is anticipated that this facility will be retained well into the future with potential for future expansion.
Inarlenge or Little Sisters Town Camp consisting of over a dozen dwellings exists to the north-east of the site,
within 250 m of the site boundary and approximately 300 m from the nearest extent of landfilling.
The area to the north of the site and including the Heavitree Range is undeveloped and zoned “conservation”
therefore expected to remain undeveloped.
2.6
100 Year Flood Area
The possibility of flooding in the vicinity of the landfill in a 100 year flood event has been reviewed.
According to the latest Alice Springs flood map the site is above the flood level shown for a major flood, indicating
the approximate 1 in 100 year flood boundary for the Todd River flood plain. Additionally, mapping indicates the
site is also beyond the extent of the Probable Maximum Flood (PMF). The PMF is the largest possible flood that
can occur and is said to have a flood risk of 1:10,000 to 1:10 million.
2.7
Topography
The Alice Springs landfill is located on undulating slopes at the edge of the valley bounded by the Heavitree Range
to the north and an unnamed range to the south. The ranges protrude to a height of up to 350 m above the valley
floor at grades of up to 50%. The southern boundary of the landfill is along Commonage Road and is situated on
the northern edge of the relatively flat valley floor. The elevation of the southern boundary of the site is
approximately 565 m AHD. The northern boundary traverses undulating terrain at the foot of the Heavitree Range
with elevations between 580 m and 590 m AHD. Surface water drainage from the site would mostly flow towards
Commonage Road, although some drainage would also flow east towards the Stuart Highway.
2.8
Geology
The landfill is situated at the northern end of the Amadeus Basin. The Amadeus Basin trends east-west, covering
an area approximately 170,000 km2, located predominantly in the southern part of the Northern Territory. Basin
Margins are well defined to the north and south by igneous and metamorphic rocks of the Precambrian Arunta and
Musgrave Blocks. To the east and west, the basin margin is obscured by a cover of younger rocks and sediments.
The regolith in the vicinity of the landfill has been mapped as slightly weathered saprock and alluvial sediments.
The lithological units underlying the regolith are yet to be accurately defined. According to the Northern Territory
Geological Survey, the underlying units include the Strangways Metamorphic Complex which consists of felsic and
mafic gneiss, metavolcanics and metapelite. The northern, undulating portion of the site is underlain by the Bitter
Springs formation which is comprised of dolomite and siltstone. This portion of the site mostly has only skeletal
soil over the Bitter Springs formation which outcrops on the knolls and elevated parts of the site. The northern
edge of the Quaternary alluvium which forms the Inner Farm Basin aquifer appears to be coincident with the
southern boundary of the site on Commonage Road. Inspections of bore logs from Blatherskite Park reveals that
the alluvium is up to 10 m thick. The Bitter Springs formation, which includes quartzite, sandstone, conglomerate,
dolostone and limestone, underlies the alluvium north of the Charles River fault. South of the fault, the alluvium is
underlain by the Alice Springs Granite formation. (Refer to drill logs Appendix C)
Drill logs for the existing monitoring wells indicate that limestone, siltstone, dolomite and calcrete were intercepted
during the drilling of MW1, MW2 and MW3. Whereas MW5A and MW6A intercepted gravels, silts, clays, and
shale. It is unclear to what depth weathering is present, or in fact whether fresh rock was reached during drilling.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
6
Therefore, according to the limited site information available to confirm regional geological mapping, geology
beneath the site may include sedimentary units of the Bitter Springs Formation or metamorphic units of the
Strangways Complex, or both, depending on the location of the contact between the two.
2.9
Hydrogeology
According to the 2006 Alice Springs Water Resource Strategy, there are no significant aquifers beneath the landfill
site. The Inner Farm Basin is the closest aquifer to the landfill site.
The southern portion of the landfill is adjacent to the north-western margin of the Inner Farm Basin. This aquifer is
composed of the Quaternary alluvial sediments, Tertiary sediments, and underlying Late Proterozoic Bitter Springs
Formations (dolomite, limestone and siltstone), reaching an approximate depth of 40 m below ground level, and
spaning an area of 0.8 km2 and is situated to the east of the Todd River extending west under Blatherskite Park.
Recharge of the Inner Farm Basin aquifer results from surface water infiltration (i.e. localised rainfall and
occasional flow from the Todd River). The rate of such infiltration is dependent on the degree of fracturing of
surrounding low-permeability rock. Groundwater within the aquifer is generally quite shallow and averages to a
depth of approximately 6 m below ground level. The direction of groundwater flow within this aquifer is southward
beneath the Todd River. It is estimated that groundwater discharges to the Outer Farm Basin at a rate of 310 ML
per annum.
Groundwater Investigations
Groundwater investigations undertaken at the site in February 2009 revealed that the effluent treatment ponds to
the south of the site significantly affect groundwater levels by creating a localised groundwater mound below the
ponds altering natural groundwater gradients.
Analytical results for the parameters tested from groundwater samples were below the detection limits or complied
with the NEPM guidelines (1999) with the exception of copper and zinc which exceed NEPM (1999) freshwater
criteria in all wells except for MW6A.
Field conductivity measurements were collected from all six groundwater monitoring wells during purging. Field
conductivity can be correlated to salinity of the groundwater. The field conductivity results attained on site would
indicate that the groundwater well closest to the effluent ponds (MW4) contains groundwater with a salinity of
3,500 mg/L, and the furtherest well (MW3) is indicating a salinity of approximately 600 mg/L.
As a guide, according to the Australian Drinking Water Guidelines (2004) drinking water of TDS 500-800 is fair
quality. TDS higher than 1,000 mg/L is unacceptable for human consumption.
Groundwater monitoring and reporting to did report contamination that could be directly attributed to the presence
of the landfill.
2.10
Climate
Meteorological factors having the greatest impact on the operation of a waste management facility are rainfall,
evaporation and wind.
Monsoonal influences provide rainfall in summer which exceeds precipitation rates in winter. Average monthly pan
evaporation rates exceed monthly rainfall rates for all months of the year.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
7
The climate at Alice Springs is typical of arid conditions, with summers of average temperatures around 35°C and
maximum temperatures often exceeding 40°C. Winter months have average temperatures around 20°C with frosts
not uncommon at night.
2.10.1
Rainfall
The mean monthly and decile 8 rainfall statistics and pan evaporation data shown in Table 2-1 below were
retrieved from the Bureau of Meteorology (BOM) for station 15648- Alice Springs (Airport) at latitude 23˚ 47’ S and
longitude 133˚ 53’ E.
The Alice Springs airport is located on the southern side of the MacDonnell Ranges and therefore would be
expected to experience similar weather conditions to the landfill site.
Evapo-transpiration (ET) data for the same site is unavailable however the BOM do provide annual and monthly
ET estimation mapping for the whole of Australia. Monthly ET data reported below has been estimated from ths
mapping. As detailed on the BOM ET webpage, ET is calculated based on the transfer and balance of energy in
the environment; temperature, vapour pressure and solar global exposure are all used as inputs in the calculation.
The mean high monthly evaporation and estimated mean ET relative to the mean monthly rainfall is significant to a
landfill sites potential to generate leachate. As demonstrated in the table below average evaporation exceeds
rainfall in every month and estimated ET is exceeded by rainfall in only two months of the year on average by no
more than 2.3 mm. Whilst climate may fluctuate and the water balance may be wetter than average from time to
time, this clearly demonstrates dry climatic conditions experienced on average at the site will substantially limit this
landfills potential to generate leachate.
Table 2-1
Month
Rainfall and Evaporation Data
Mean Monthly
Rainfall (mm)
Decile 8 (mm)
Mean Daily Pan
Evaporation (mm)
Estimated Evapotranspiration (mm)
January
38.0
71.2
403
45
February
42.3
74.8
324.8
40
March
31.9
42.7
316.2
40
April
16.8
25.6
222
15
May
19.4
41.1
148.8
20
June
14.4
28.0
111
15
July
14.5
24.6
124
15
August
9.4
13.0
173.6
10
September
8.2
14.6
237
10
October
21.7
36.8
316.2
20
November
26.7
41.5
348
30
December
37.3
54.9
381.3
40
Totals
279.9
375.1
3105.9
300
Source:
Rainfall, Evaporation & Evapo-transpiration data sourced from the Bureau of Meteorology.
When comparing average rainfall and evaporation data for the site, a water deficit occurs in every month of the
year (i.e. evaporation exceeds rainfall on average all year round).
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
8
2.10.2
Wind
The wind data from the BOM (wind roses) for Alice Springs Airport has been reviewed and detailed below to give
an understanding of the wind conditions experienced at the site. Morning and afternoon conditions are reported
based on data for 9 am and 3 pm wind readings respectively.
The site will experience some protection from winds from the north due to the local topography (Heavitree Range).
Wind descriptions have been made using the Beaufort Wind Scale. It’s important to note for landfill management
that if wind speed is greater than 20 km/hr (moderate on the Beaufort Wind Scale), wind will raise dust and litter
and move small branches therefore litter control is vital on the site.
2.11
•
Summer morning winds tend to blow from the east to south east (approx 53%) and will generally be
light to moderate (1 to 30 km/h) with only occasional fresh to strong winds (30 to 50 km/h). The
remainder of the time winds are from north east to north and generally light. Calm conditions have been
registered for 12% of the time on summer mornings.
•
Summer afternoon winds tend to be from a south east to easterly direction. Light to moderate conditions
prevail (1 to 30 km/h) but summer afternoons were also calm 6% of the time.
•
Autumn mornings have light to moderate (1 to 30km/h) and some fresh (>30 km/h) winds from the east
to south-easterly direction at approx 40% of the time. However calm wind conditions are common at
36%.
•
Autumn afternoons have very similar conditions to summer afternoons in both speed and directions.
•
Winter mornings have calm conditions 46% of the time. When calm conditions are not the case, wind
has similar proportions from all directions but the east to south direction is most common with light to
moderate winds (1 to 30km/h)
•
Winter afternoon winds are not often calm (8%) compared to mornings, and prevail from the east and
south-east direction (approx 50%) with light to moderate conditions (1 to 30km/h)
•
Spring morning winds prevail from the east (approx 30%) with light to moderate conditions (1 to
30km/h). Winds from the north, north-east and south-east have approximately equivalent prevalence with
mostly light to moderate, and some fresh (>30km/h) conditions (approx. 5%).
•
Spring afternoon winds prevail from south-east, east and southerly direction with light to moderate
conditions. There are also considerable winds (approx. 12%) from the north-west direction with light to
moderate and some fresh conditions.
Surface Water Management
The landfill is located in an area with an average annual rainfall of 280mm and an average pan evaporation of
3,106 mm (as measured at Alice Springs Airport). Significant runoff events generally occur as a result of
thunderstorms or tropical storms.
Original surface water drainage patterns on the existing landfill area have been altered substantially. Apart from
clearly defined landfill slopes, where stormwater erosion has occurred, no drainage patterns are obvious.
Surface water drainage outside the landfill area is generally in accordance with flow paths as they existed prior to
commencement of landfilling activities.
It is expected that the catchment containing the landfill will drain towards the Todd River. Anecdotal evidence
indicates that runoff from the catchment can also flood Blatherskite Park and Ilparpa swamp.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
9
Surface water management for the developing site is discussed further in Section 8.
2.12
Services
The site is currently serviced by the following:
2.13
•
Power;
•
Water;
•
Telecommunications; and
•
Sewerage.
Waste Disposal and Licence Conditions
The site is licensed to conduct activities prescribed by Schedule 2, Part 2, Items 1 and 3 of the Waste
Management and Pollution Control Act 1998, as follows:
•
Operating premises for the disposal of waste by burial that service, or are designed to service, the waste
disposal requirements of more than 1,000 persons.
•
Operating premises, other than a sewerage treatment plant, associated with collecting, transporting,
storing, re-cycling, treating or disposing of a Listed Waste on a commercial or fee for service basis.
•
The site is also licensed to accept the following Listed Wastes:
•
Asbestos;
•
Acidic Solutions;
•
Basic Solutions;
•
Containers that are contaminated with residues of listed waste;
•
Lead, lead compounds;
•
Soil contaminated with a listed waste;
•
Surface active agents (surfactants) that contain principally organic constituents and that may contain
metals and inorganic materials;
•
Tyres (shredded);
•
Waste mixtures, or waste emulsions, of oil and water of hydrocarbon and water.
Of these Listed Wastes that are able to be accepted, only asbestos and shredded tyres are allowed to be buried
under the site’s licence conditions. All other Listed Wastes that are allowed to be accepted under the licence
conditions can only be collected from residential sources and stored above ground on site, prior to eventual
transport off site.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
10
3
Environmental Management System
The environmental management framework for the Alice Springs Town Council Landfill is based on the principles
of:
3.1
•
ISO 14001 – Environmental management systems, Specifications with guidance for use; and
•
ISO 14004 – Environmental management systems, General guidelines on principles, systems and
supporting techniques.
Legislative Requirements, Standards and Codes of Practice
The purpose of the Environmental Management System (EMS) is to provide policy direction, management
structure, improvement programs and operational procedures to ensure that environmental aspects and impacts of
the landfill site are managed and minimised.
The environmental management initiatives that relate directly to the Licence or existing documentation such as the
LEMP form part of the EMS.
The objectives of the EMS are summarised as follows:
3.2
•
to provide a framework to facilitate operation of the site in an environmentally sustainable manner; and
•
to provide a mechanism to measure operational performance and to implement a program for continual
improvement.
Management Structure and Responsibilities
Overall responsibility for the site ultimately rests with the Licensee. Landfill operations will be managed by the
Council or a contractor engaged to operate the facility on behalf of the Council (the Operator).
The specific responsibilities associated with the various procedures and monitoring programs are detailed further
in Table 3-1.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
11
Table 3-1
Project Stage
ASTC Landfill Management Structure and Responsibilities
ASTC
Environmental / other
Consultant
• Preparation of LEMP
and associated
documentation
• Liaison with authorities
on technical issues
• Review and update
LEMP as required
Licence
maintenance/
issues
• Preparation and
submission of licence
application
• Public consultation
activities
• Liaise with NRETAS
Environmental
management
• Arrange for env.
monitoring to be
undertaken in
accordance with LEMP
• Forward env.
monitoring reporting to
NRETAS
• Undertake monitoring
as requested by ASTC
• Advice to ASTC as
required
Construction
projects
(eg new
facilities,
capping works
etc)
• Seek development
approvals for proposed
construction projects
• Seek tenders for
project works
• Administer any
construction project
• Design and
documentation for
projects
• Inspection and/or
supervision as
required
• Advice to ASTC as
Contractors
Landfill Operator
• Operate site in
accordance with
Licence
• Operate site in
accordance with env.
obligations of LEMP
and contractual
arrangements
• Undertake construction
project in accordance
with obligations of
contractual
arrangements
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
12
NRETAS
• Review of LEMP and
associated
documentation
• Administer Licence
• Respond to Licence
and general enquiries
• Approvals for Licence
and LEMP etc
• Intervention in the
event of a breach to
the Waste Mgt and
Pollution Control Act
• Review of env.
Reporting and
associated
documentation
• Provide feedback to
ASTC
• Intervention in the
event of a breach to
the Waste Mgt and
Pollution Control Act
Project Stage
Landfill
Operation
ASTC
contracts
• Provision of annual
reports to the NRETAS
• Administer landfill
operation contract
Weighbridge
Operation
• Administer
weighbridge operation
contract
Tipshop
Operation
• Administer tipshop
operation contract
Environmental / other
Consultant
required
• Advice to ASTC as
required
Contractors
Landfill Operator
• Operate site in
accordance with
obligations of LEMP
and contractual
arrangements
• Continual review of
operations and
improvement
• Administration and
maintenance of
operating systems eg
OH&S, Quality Mgt etc
• Operate weighbridge
in accordance with
obligations of LEMP
and contractual
arrangements
• Continual review of
operations and
improvement
• Administration and
maintenance of
operating systems eg
OH&S, Quality Mgt etc
• Operate tipshop in
accordance with
obligations of LEMP
and contractual
arrangements
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
13
NRETAS
• Review of annual
reports
• Intervention in the
event of a breach to
the Waste Mgt and
Pollution Control Act
Project Stage
ASTC
Environmental / other
Consultant
Hazardous
Waste Facility
• Administer HW facility
operation contract
• Advice to ASTC as
required
Greenwaste
facility
• Administer tipshop
operation contract
• Advice to ASTC as
required
Contractors
Landfill Operator
• Continual review of
operations and
improvement
• Administration and
maintenance of
operating systems eg
OH&S, Quality Mgt etc
• Operate HW facility in
accordance with
obligations of LEMP
and contractual
arrangements
• Continual review of
operations and
improvement
• Administration and
maintenance of
operating systems eg
OH&S, Quality Mgt etc
• Operate greenwaste
facility in accordance
with obligations of
LEMP and contractual
arrangements
• Continual review of
operations and
improvement
• Administration and
maintenance of
operating systems eg
OH&S, Quality Mgt etc
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
14
NRETAS
• Intervention in the
event of a breach to
the Waste Mgt and
Pollution Control Act
• Intervention in the
event of a breach to
the Waste Mgt and
Pollution Control Act
Project Stage
ASTC
Glass crushing
facility
• Operate glass
crushing facility in
accordance with
obligations of LEMP
and any contractual
arrangements
• Continual review of
operations and
improvement
• Administration and
maintenance of
operating systems eg
OH&S, Quality Mgt etc
• Administer after care
obligations
• Provision of reporting
to the NRETAS
Post Closure
Environmental / other
Consultant
• Advice to ASTC as
required
• Environmental
monitoring
• Site inspections
• Advice to ASTC as
required
Contractors
Landfill Operator
• Undertake post
closure after care
activities in
accordance with
obligations of
contractual
arrangements
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
15
NRETAS
• Review of reporting
• Intervention in the
event of a breach to
the Waste Mgt and
Pollution Control Act
The Licensee may engage consultants or contractors to assist with the following tasks as required:
•
Detail design for future development of the site;
•
Construction Quality Assurance (CQA) As Constructed reporting of construction episodes;
•
Landfill gas management;
•
Environmental site monitoring (eg groundwater, surface water, leachate etc);
•
Environmental auditing of the site and its operation;
•
Survey;
•
After care responsibility off the landfill for 30 years ;
•
Reviewing the LEMP as per licence conditions or every three years;
•
Annual Operations and Monitoring Reporting to NRETAS .
Day to day responsibilities for carrying out operational procedures associated with the environmental management
of the site is allocated to:
3.3
•
The Facility Operator;
•
Machinery and Weighbridge Operators; and
•
Other assistants as required.
Training
The Operator shall develop and administer training in OH&S and environmental awareness. Training shall include
environmentally sound work practices, which shall be regularly undertaken and updated by the landfill operator and
site staff.
Environmental training shall be conducted at the site by experienced personnel and may be split into the following
categories:
•
Environmental Induction
This will be a brief introduction to the environmental impacts of the site, to the regulatory requirements for
environmental control and to the broad system of environmental monitoring, records and reporting for the site.
The fundamental message of the induction will be that environmental management is a necessary and
important part of site management, and that the environmental management system will be visible and
accessible to all site personnel.
• Instruction in Basic Work Practices Aimed at Minimising Environmental Impact
This will include clear definition of work practices for site personnel, such as covering the working face, litter
control, dust control, restriction of working hours, and the environmental basis for these practices.
•
Targeted Environmental Awareness Training
This will be aimed at senior site personnel and key staff involved with the site. Aspects to be considered for
this awareness training will be regulatory requirements in more detail, environmental monitoring programs and
results, environmental auditing and community awareness.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
16
The Operator shall ensure that all staff and subcontractors on the site are adequately trained on the work
specific and site-specific OH&S relevant to the site. The information provided should include:
•
Roles and responsibilities for all site personnel;
•
Summary of existing site conditions;
•
Evaluation of aspects and impacts;
•
Measures to mitigate or manage identified aspects and impacts;
•
Personnel protection standards and safe work instructions and procedures;
•
OH&S monitoring;
•
Annual reviewing of OH&S documents
•
Training and communication requirements for all involved in the works;
•
Evacuation procedures and emergency contacts established; and
•
Emergency Response Plan awareness and training
The Operator will co-ordinate general staff training in accordance with the company training procedures.
3.4
3.4.1
Recording and Reporting Procedures
Record Keeping
The following records shall be kept, on site or at the legal address of the Licensee for a minimum of four years and
be made available to Council on request:
•
copy of conditions of consent and authorisation (the Licence) under the Waste Management and
Pollution Control Act 1998;
•
records of staff training. Records of all training are to be kept and maintained on site by the Contractor
and should include:
-
Who was trained;
-
When the person was trained;
-
The name of the trainer; and
-
A general description of the training content
•
records of inspections conducted by staff;
•
records of complaints received;
•
records of inspections by NRETAS;
•
records of non-conformances and corrective and preventative actions;
•
environmental auditing reports;
•
copy of LEMP (including emergency response and closure and post closure plan);
•
records showing waste storage locations for future possible retrieval;
•
copies of the Annual Reports which will include, amongst other items:
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
17
-
monitoring results for gas, leachate, surface water and groundwater including interpretations of
monitoring results by qualified personnel;
-
tonnages and types of waste received; and
-
copies of Quarterly Reports.
It will be the responsibility of the Licensee to ensure that the above records are kept up to date, and are made
available to NRETAS upon request.
3.4.2
Daily Diary
The Operator will be required to complete the Daily Diary, recording all relevant details of the day’s activities,
including weather conditions, litter and/or dust problems, complaints etc.
3.4.3
Weekly Inspection and Report
The Operator will inspect the site weekly to verify that the operations are being conducted in an environmentally
satisfactory manner, and will complete a Weekly Inspection Report. A copy of the Weekly Inspection Report,
together with copies of the Daily Log Sheets for that week shall be retained on site. The Weekly Inspection Report
Proforma is given in Appendix A.
3.4.4
Quarterly Inspection and Report
During March, June, September and December of each year the Operator will carry out a detailed quarterly
inspection of the site. On completion of the inspection, the Operator will prepare a Quarterly Inspection Report.
The Quarterly Inspection Report Proforma is given in Appendix A.
3.4.5
Annual Operations and Monitoring Report
On an annual basis the Licensee will compile an Annual Operations Report and an Environment Monitoring
Report. The Annual Operations Report shall be for internal use and the Environment Monitoring Report shall be for
internal use and submission to NRETAS.
The reporting will incorporate the information detailed below. While the Licensee will be responsible for ensuring
the implementation of monitoring programs and data collection, the information in some cases will be supplied by
others, such as consultants. Required items to be included in the Annual Operations Report will include:
•
Total tonnage and estimated volume of waste received over the weighbridge during the year.
Required items to be included with the Environment Monitoring Report:
•
•
Environmental Monitoring report including;
-
Leachate, groundwater and landfill gas monitoring and adequacy of monitoring program given
development status of site;
-
Dust, odour, noise and litter monitoring.
-
Visual inspection of site conditions as required by Section 10 and 12 of this LEMP
Pollution incidents pursuant to Part 3 of the Waste Management and Pollution Control Act 1998,
Environmental duties and Duty to notify of incidents; and
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
18
•
Complaint register.
A ground survey of the disposal and excavated areas will be carried out annually. The results of this survey will
enable an estimate of the volume of waste disposed during the previous 12-month period, for inclusion in the
Annual Report and for the purposes of measuring target compaction densities, air space consumption targets and
monitoring of final capping and revegetation programs.
3.5
Framework for Internal and External Reporting
As part of the EMS the Licensee shall implement a number of internal and external recording and reporting
procedures, to ensure regular and easy communication between all parties.
Informal internal communication will be achieved largely through regular contact among site personnel, but will be
supplemented by regular operational meetings, which will provide the opportunity for environmental matters to be
raised by on-site personnel. Keeping site personnel informed about environmental investigations, monitoring,
reports and trends will assist greatly in sustaining general environmental awareness.
3.5.1
Internal Environmental Audits
Internal environmental audits will be undertaken by the Licensee to annually assess compliance with the Licence
conditions and the LEMP.
The compliance audit will assess the following:
3.5.2
•
waste and recyclable materials, types and quantities
•
operational procedures including;
−
road and traffic management;
−
daily cover;
•
leachate collection system;
•
landfill gas management;
•
groundwater testing management, monitoring and test results;
•
stormwater management;
•
landscaping;
•
odour, litter, noise and dust management;
•
bird, vermin and weed control;
•
emergency contingency plans;
•
complaints register and actions/remedies effected.
Communication with NRETAS
Communication with NRETAS will be both formal, through reporting routines, and informal through regular contact.
Formal reporting routines include:
•
Waste data reporting;
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
19
•
Annual Operations and Monitoring Reports, LEMP updates.
Informal or non-routine correspondence may include discussions relating to the following:
3.5.3
•
General environment management or operational enquiries;
•
Receipt and investigation of environmental complaints, and timely responses in dealing with manageable
issues.
Communication with Community
Any need for active engagement or communication with the local community will be considered by Council in
consultation with the ASTC Environment Advisory Committee.
3.6
Complaints
A record of complaints regarding the facility will be kept by the Operator in the site office. An example reporting
proforma is given in Appendix A.
The complaints shall include the following information:
3.7
•
Date and time complaint was reported;
•
Name and address of complainant;
•
Details of the complaint;
•
Date and time of events giving rise to the complaint and the likely cause at the time of the events;
•
A description of weather conditions (e.g. temperature, wind speed, wind direction and rainfall) at the time
of the events giving rise to the complaint;
•
Name and position of person receiving complaint;
•
Action taken in response to the complaint; and
•
Action taken to prevent a recurrence of the complaint.
Non-Conformance and Corrective / Preventative Action
A Non-Conformance and Corrective / Preventative Action form will be completed in response to events and/or
issues occurring at the site that lead to non-conformance, namely:
•
as part of an environmental audit;
•
from observations made by personnel on site and recorded in daily log and quarterly inspection reports;
•
from complaints made by the general public or by users of the site, and recorded on a complaint form;
and/or
•
as a consequence of the interpretation of monitoring data.
Completed Non-Conformance and Corrective / Preventative Action forms will be kept on site to provide a traceable
record of non-conformance events or issues and a copy provided to the Site Manager. A sample NonConformance and Corrective/Preventative Action form is included in Appendix A. Corrective and preventive
actions will be specified in non-conformance documentation, which will be signed off by the ASTC Director of
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
20
Technical Services when appropriate actions have been completed. The non-conformance and the corrective
and/or preventative actions will be documented in the Annual Report.
The majority of environmental observations made by personnel on site will be most appropriately dealt with
through daily inspections, with the non-conformance system used to address environmental issues as necessary.
Similarly, complaints made by users or the community may be dealt with through the non-conformance system, as
required.
Corrective and preventive actions arising as a result of interpretation of monitoring data will usually be recorded as
written recommendations in monitoring reports. However, Non-Conformance and Corrective / Preventative Action
forms will also be used as a means of tracking the implementation of corrective actions.
Procedures for dealing with non-conformance will be based on:
•
identifying the cause of the non-conformance;
•
identifying, recording and implementing the necessary corrective action;
•
making any changes necessary to avoid repetition of the non conformance (i.e. preventive action); and
•
recording in writing any changes in operating procedures that result from corrective / preventive actions.
Any changes to procedures will be reported annually and reflected in future updates of the LEMP, for the operation
and management of the site.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
21
4
4.1
Site Operations
General Operations
The site shall only be operated in accordance with the activities for which the Licence has been issued as
stipulated in the Licence and shall not modify or alter the site to accommodate activities for which the site is not
licensed.
The site consists of the following existing facilities and operational areas:
•
Gatehouse and weighbridge;
•
Site office and tip shop;
•
The landfilling area;
•
C&D processing area (mobile);
•
Greenwaste processing area;
•
Asbestos disposal area; and
•
Hazardous waste compound.
A waste transfer station and glass processing facility are proposed for future development.
4.2
4.2.1
Site Control
Hours of Operation
The site is open to the public seven days a week from 7.30 am – 5.30 pm.
The Landfill and Tip Shop are closed Christmas Day and Good Friday.
4.2.2
Staffing
Generally the site is operated by at least four (4) staff members.
Duties required to be fulfilled by the site attendants could include the following:
•
Landfill Site/Weighbridge Attendant
-
Daily diary and reporting;
-
internal record keeping (daily, quarterly, annual) and handling telephone enquires;
-
general office management and administration;
-
inspection and supervision of waste loads deposited;
-
give detailed directions to waste transporters as to correct procedures.
•
Machine Operator/Site Foreman
-
ensure correct procedures followed during drop off and disposal;
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
22
-
maintenance of the facility structures in a clean and tidy condition;
-
depositing and compacting waste at tipping face, keeping tipping face orderly;
-
covering waste at the end of each working day, or at more regular intervals as required;
-
windblown litter daily pick up;
-
incident reporting;
-
placing interim cover layers over completed areas;
-
carrying out inspection, maintenance and repairs on equipment;
-
inspection of the waste compaction and cover etc;
-
establishing litter control fencing around the tipping face;
-
maintaining the drains and stormwater detention basins;
-
preparing areas for the reception of waste; and
-
carrying out dust suppression of unsealed roads and stockpiles.
Duties to be undertaken by the Licensee or undertaken by the Licensee’s representative may include:
4.3
4.3.1
•
monitoring site in accordance with monitoring programs;
•
preparing reports and correspondence for NRETAS.
Access and Traffic Management
Gatehouse and Entrance Facilities
The site’s entrance consists of the entrance gates (to prevent unauthorised access to the site both during and after
hours (e.g operating hours for the landfill are between 7:30 am to 5:30 pm)), employees car park and visitors car
park, the gatehouse, weighbridges, the office and amenities (see Figure 1).
All visitors to the site other than those disposing of waste or browsing the Tip Shop are required to sign in and out
of the site visitor register or as directed by Council.
4.3.2
Site Entrance
Vehicles entering the site must enter through the entrance gates on Commonage Road before proceeding to the
gatehouse and weighbridge. Vehicles exit the facility via the same gates. All vehicles entering the landfill must
cross the weighbridge before proceeding to the disposal areas as directed by the gatehouse attendant.
4.3.3
Internal Access Roads
Vehicles travelling to and from the landfilling area are to only use the access road provided. The main road
through the landfill is Commonage road (e.g Public road), which includes sealed and unsealed parts and has a
maximum speed limit of 20 km/hour.
The construction specification for the internal access roads will be on a ‘fit for purpose’ basis, with due
consideration being given to local conditions, the levels of traffic and the types of vehicles that will use the road. All
roads used for public access shall be constructed for all-weather access with good selection of gravel and nongravel material and regular maintenance to minimise erosion and access issues.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
23
Generally, all roads that are to be used extensively by external vehicles shall have the following specifications:
4.4
•
Primary access road wide enough for two (2) vehicles to pass safely (i.e. 2-lane) or a minimum of 8 m
road surface plus 2.5 m shoulders on each side;
•
Secondary access roads wide enough for two (2) vehicles to pass safely (i.e. 2-lane) or a minimum of 6
m road surface plus 1 m shoulders on each side
•
maximum longitudinal gradient 1 (vertical) is to 8 (horizontal); and
•
minimum one-way crossfall 4% (note: two-way (of 2.5% )cross fall is preferred).
Signage
The Licensee will ensure that all appropriate commercially manufactured signage is installed and maintained as
required by the Guidelines, including but not limited to signage indicating:
•
that the Licensee holds an authorisation to operate the site as a landfill under the Waste Management
and Pollution Control Act 1998 and the Authorisation number;
•
at the site entrance the types of wastes the site is licensed to receive including listed wastes and gate
fees;
•
emergency 24 hour contact details;
•
warning signs displayed prominently;
•
traffic directional signage, appropriate for the safe and orderly management of traffic on the site;
•
“Access prohibited to unauthorised persons”;
•
speed limits;
•
operating hours;
•
concerns and complaints arrangements;
•
Fuel Storage.
Fuel for on-site machinery will only be stored at the site in an appropriately bunded facility that is separate from
structures or greenwaste stockpiles.
No fuel will be stored in the disposal cell area; and machinery will refuel at the bunded facility or fuel will be
transported to machinery on an “as needs” basis.
4.5
Waste Transfer Station
Once established, the purpose of the waste transfer station will be to:
•
no longer allow public access to the tipface and operational areas of the site;
•
promote safe and efficient drop off of waste by the public;
•
promote resource recovery and recycling;
•
reduce airspace consumption through waste diversion from landfill (resource recovery etc) and screening
out of bulky materials for diversion or improved size reduction measures.
The operator shall manage and maintain the waste transfer station to promote its use to the public and to reduce
the potential for accidents and incidents at the facility.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
24
The operator shall clear the drop off of general municipal solid waste daily and shall have other materials removed
regularly to ensure tidy facility and minimal loss of value of resources and recyclable items.
Upon completion of the waste transfer station there will be no unauthorised public access to the disposal
operations or tip face unless authorised otherwise by Council or the Contractor.
4.6
4.6.1
Landfilling
Residual Waste Generation Rate
Weighbridge data supplied by Council has been reviewed to assess actual waste to landfill for the year 2008/09 to
project a future lifespan based on current waste acceptance and landfilling rates. The breakdown of the
weighbridge data is presented in the table below.
When considering the waste data for volume of material arriving at the weighbridge and volume of material
diverted from landfill as recyclable or recoverable materials, the remaining residual waste going to landfill for 08/09
period was approximately 51,069 tonnes as indicated in Table 4-1.
Table 4-1
Weighbridge Data for 2008/09
Waste Stream
Accepted
Recycled
Total to Landfill
Tonnes
Municipal Solid Waste (MSW)
27,620
771
26,849
Green Waste
4,878
2,267
(2,611)
Construction & Demolition waste (C&D)
3,064
2,556
508
Liquid Waste
772
-
772
Metal
105
105
-
Tyres
3.64
2.0
1.64
Asbestos
755
-
(755)
22,938
-
22,938
60,136
5,701
51,069
Cover Material
(54,435)
( ) indicates diverted from general landfill
4.6.2
Remaining Landfill Capacity Review
It is estimated that the site has approximately 750,000 m3 of gross airspace remaining between the surveyed
existing surface (as at survey date of May 2009) and the top of the final proposed landform.
If we assume that the final capping layer will be 1.0 m thick (0.3 m interim cover, 0.6 m soil layer and a 0.1 m
topsoil layer) this reduces the practical fillable airspace of approximately a nett 560,000 m3.
When comparing weighbridge data for waste disposed of to landfill and waste surface survey information, the
estimated waste compaction is in the order of 1.07 t/m3 including soil cover. It is estimated that at current landfilling
rates, available airspace will be exhausted in approximately 9.4 years.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
25
As large amounts of soil are currently being used in landfilling practices, the soil cover significantly contributes to
the relatively high compaction density of 1.07 t/m3. When considering waste density alone, i.e. excluding soil cover
material, the estimated waste compaction density is approximately 0.750 t/m3. To maximise the opportunity to
increase the landfills lifespan the target waste compaction rate should be in the order of 0.850 t/m3
Further opportunity exists for landfill lifespan to be improved through improved resource recovery, reduction of the
use of daily cover and improved compaction practices.
4.6.3
Landfill Site Development and Proposed Staging
The remaining landfill airspace shall be filled progressively to facilitate progressive capping and rehabilitation
works. Council has determined the proposed staging for landfilling based on identified rehabilitation priority areas
such as areas visible from roads or neighbouring properties, areas nearest to sensitive receptors or to facilitate
future proposed development at the site such as a waste transfer station or processing area. Proposed staging of
landfilling progress is indicated in Figure 6.
Whilst landfilling “stages” have been proposed, these will guide progression of filling and capping as opposed to
being strictly defined filling and capping zones. Areas will be capped as they become of suitable extent to facilitate
an efficient and cost effective capping campaign as determined by the Licensee.
The Licensee will periodically review landfilling progress and may alter the course of the capping progress based
on site specific conditions and other circumstances that may arise.
4.7
4.7.1
Recycling and Resource Recovery Tip Shop
General
The site currently incorporates a Tip Shop for recycled, salvageable items diverted from landfill for sale to the
public.
These items typically consist of:
4.7.2
•
Recovered building materials;
•
Approved electrical appliances/electronic waste;
•
Household items and whitegoods;
•
Bicycles, toys etc.
Tip Shop Status and Management
The Tip Shop will collect and sell unwanted materials that are collected from the waste stream or donated by the
public or local businesses. Electrical items must be certified by an Electrician prior to sale.
The Tip Shop shall be effectively managed in order to prevent the unauthorised entry of persons or waste, promote
the sale of salvageable, reusable or recyclable items and provide a clean and tidy environment that is safe for staff
and public.
Tip Shop management and operations guidelines are included in Appendix G.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
26
4.8
Hazardous Waste Compound
Council has established a hazardous waste storage compound for the temporary storage of hazardous waste prior
to periodic removal by waste contractors licensed to remove and appropriately manage these materials. The
compound layout is shown in Appendix F.
All chemicals received from public are registered prior to being stored in the hazardous waste compound.
Commercial quantities of hazardous waste are not accepted and shall be directed to hazardous waste contractors.
The hazardous waste compound is fully fenced with a 2.4 m high chain mesh security fence with barbed wire top,
has bunded areas, ventilated sheds, used oil receptacles and storage space capable of storing a range of
household hazardous waste.
Household hazardous waste accepted at the hazardous waste compound includes:
4.9
•
household chemicals less than 5 litres such as aerosol cans, insect sprays, pest poisons, household
cleaners, pharmaceuticals, mothballs and old smoke detectors;
•
garden chemicals less than 5 litres such as fertilisers, fungicides, herbicides and insecticides;
•
automotive chemicals such as batteries and oils less than 10 litres (including motor and sump oils);
•
Gas cylinders etc.
•
Only the NT Fire and Emergency Service is allowed to control fires at the hazardous waste compound.
Green Waste Processing
Council have established a green waste drop-off, size reduction and processing area on the western side of the
site. Several processes are being trialled such as chipping, mulching and composting of green waste for beneficial
uses. The processed product will be utilised by Council for Council projects or for sale to the public.
The green waste processing facility shall be operated in accordance with current best practice standards and
guidelines for mulching and composting processes and products sold shall be developed to comply with Australian
Standards for various compost products.
The operator shall be familiar with the Waste Management Association of Australia Best Practice Guidelines:
Composting, 2004. Recycled organics products and products with recycled organic content are defined in the
following Australian Standards:
•
AS 4454 (2003) Composts, Mulches and Soil Conditioners;
•
AS 3743 (2003) Potting Mixes;
•
AS 4419 (2003) Soils for Landscaping and Garden Use.
At a minimum, all greenwaste processing undertaken at the site shall be done so in accordance with the Alice
Springs Mulch Standards which are included in Appendix H. These standards are based on AS 4454- 2003.
Any mulching/composting activities shall take place at least 100 m away from any fuel depot or infrastructure. A
300 mm high soil bund shall be constructed to surround the Greenwaste processing area as required by the
Licence.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
27
4.10
Glass Crushing Facility
Council proposes to develop a glass crushing facility on the western side of the site, adjacent the green waste
processing area for sorting, size reduction and preparation of crushed glass for transport to market.
4.11
Plant and Equipment
All plant and machinery shall be operated by persons trained and competent in operation of that equipment, or
under the vigilant supervision of a person who is competent in operating such plant. The landfill operator shall be
able to provide documentation to Council or an NRETAS authorised person within five days of request, which
demonstrates that an employee is competent to operate the machinery directly involved with the Licensed activity.
All plant and machinery shall be adequately maintained and operated to ensure efficient and effective use of the
equipment. This will promote the reliability of the equipment and reduce potential impacts to the environment such
as excessive noise, burning of fuels and emissions to air. The operator must repair or replace broken plant and
machinery within 24 hours.
Maintenance records shall be maintained, including safety checks and be made available to Council on request.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
28
5
5.1
Waste Management
Waste Process Flow
A schematic of the waste process flow is presented in Figure 3.
5.2
Residual Wastes Disposed of at the Landfill
The Operator shall not deliberately burn waste, or cause the burning of waste.
The types of waste accepted at the site and disposed of by burial include:
•
Kerbside collected waste;
•
Municipal solid waste (MSW) (putrescible and non-putrescible) by public drop-off;
•
Residual Construction and Demolition (C&D) waste;
•
Commercial and Industrial (C&I) Waste;
•
Shredded tyres and asbestos (the only Listed Wastes accepted for burial); and
•
Clean fill material (generally imported to site by Council and disposed of as daily and interim cover).
List 1 of the Licence states the site can accept certain other Listed Waste which must not be disposed of by burial
at the site.
Waste soil will not be accepted from the public or commercial operations unless a soil contamination report by an
environmental consultant (including chemical analysis data from a NATA accredited soil testing laboratory)
confirms that the soil does not contain contaminants including asbestos beyond acceptable thresholds. As a
general rule, Alice Springs Landfill does not accept extra-municipal waste. In the event of interstate Listed Waste
arriving at the landfill the following procedure will be implemented:
•
The transport contractor will be asked to present the Waste Transfer Certificate and details of their Listed
Waste Licence. Failure to provide the documents will result in the waste materials not being accepted.
•
In the case of a Certificate and Licence:
The following details must be recorded: the registration number of the delivery truck, their Listed Waste
licence and certificate, details of transport contractor, and type, weight etc. of all waste.
-
•
In the case of no Certificate or Licence:
-
The following details must be recorded where possible: the registration number of the delivery truck,
the details of the trucking contractor and the waste type.
-
the trucking contractor will be instructed of its obligations under the “Interstate Transport of Controlled
Wastes NEPM”
-
the relevant NT and interstate environmental state authorities will be informed of the incident.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
29
5.3
5.3.1
Reuse and Recycling
Reusable and Recyclable Materials Drop-off
Reuse and recycling activities occur at the site and appropriate facilities are provided to receive these wastes.
Items are dropped off as directed by the gatehouse attendant. Users of the facility will have the opportunity to
unload the following materials at the waste transfer station or the Tip Shop, for recovery by the operator:
•
glass;
•
plastic;
•
paper and cardboard;
•
ferrous metals and non-ferrous metals;
•
electronic equipment etc;
•
reusable products not requiring recycling or reprocessing, e.g. water tanks, white goods;
•
inert soil materials;
•
building and demolition waste;
•
timber; and
•
tyres.
Uncontaminated green waste is accepted at the site and is processed into a resource.
5.4
5.4.1
Waste Management Operations
Receiving Waste
The Operator will record waste quantities accepted, in accordance with the schedule set out in Table 5-1.
The Operator will monitor waste placed on the landfill floor prior to disposal and compaction for recoverable or
hazardous materials. When recyclable items or hazardous items (such as used tyres, gas cylinders and car
batteries etc) are found they shall be removed and sent to the appropriate storage location at the site until eventual
removal from site.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
30
Table 5-1
Records of Waste Types and Quantities
REASONS FOR RECORDING
Continuous assessment of waste intake rates
Provide basis for payment of gate fees
Ensure no unauthorised materials are accepted
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
Item
Comment
Key Information
Numbers and types of delivery vehicles
Waste quantities (computerised weighbridge)
Volumetric survey of placed waste and estimate of remaining airspace
Location
Weighbridge
Methodology
Maintain accurate, comprehensive and up to date records
Carry out spot checks on incoming loads to ensure compliance
Responsibility
Operator
Frequency
Continuous
Annual survey as a minimum
Duration
Operating life of site
Acceptance Criteria
All key information recorded and appropriate stored and reported
Reporting - Internal
Daily returns completed by the weighbridge operator
Monthly summaries of returns collated by the Operator
Reporting - External
Annual Report submitted to NRETAS
Non Conformance Procedures
Refuse to accept non complying materials
Check/review adequacy of above monitoring procedures
Review training/need for training
Implement corrective actions and modify procedures as necessary
Management Review
Licensee to review procedures and implement recommendations from Annual
Operational and Environmental Monitoring Report
5.4.2
Waste Drop-off
The site will operate as summarised below:
•
Vehicles transporting waste to the site will enter the site via the access road off Commonage Road;
•
Waste materials will be inspected and fees collected by site staff at the gatehouse;
•
Vehicles, public or contractor will be directed to the appropriate disposal location (waste transfer station,
hazardous waste compound, Tip Shop or green waste area);
•
Listed Waste materials, apart from shredded tyres and asbestos, shall be directed to the hazardous
waste compound;
•
Vehicles shall enter the assigned area, deposit waste at or adjacent to the drop-off location, as directed,
and exit the area;
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
31
5.4.3
•
Barricading shall be provided to separate public vehicles from Contractor plant and equipment.
•
Waste collected at the waste transfer station will be stored temporarily and processed on-site or off-site,
or resold in the Tip Shop;
•
Waste collected at the hazardous waste compound will be stored temporarily until removal by
appropriate contractors off-site (See Section 5.5);
•
Liquid waste shall be temporarily stored until removal by appropriate contractors off-site;
•
Recyclable or salvageable materials dropped off at the waste transfer station will be sorted by the
Operator and resold in the top shop or other markets.
Waste Disposal and Compaction
The primary measures to protect the environment and preserve landfill airspace are by effective placement and
compaction of the waste and efficient use of daily cover. The following measures shall be undertaken to ensure
effective and efficient waste disposal and compaction at the site:
•
The Operator shall remove or appropriately manage bulky items that hinder compaction eg white goods,
mattresses, timber pallets, cardboard, tyres etc;
•
The landfill Operator shall establish a second tip face to aid resource recovery. All recyclable vehicle
loads shall be directed to the second tip face;
•
The tipping face must be surrounded by a 300 mm high impermeable bund to prevent stormwater from
flowing across the tipping face;
•
Daily cover shall be stripped back and stockpiled the following day prior to daily filling for reuse as daily
cover. Cover soil contaminated with waste shall be used in the first layer of daily cover;
•
The residual waste at the tip face will be pushed across the working face and will be compacted in layers
(maximum 600 mm uncompacted thickness) by trafficking over each layer with specialised waste
compaction equipment, until the lift height (approximately 2 m) has been attained (Caterpillar
Performance Handbook; Caterpillar 2007);
•
With this machinery the operator should be aiming for three to five passes (one pass being back and
forth over the waste) to achieve optimum density. A greater number of passes may not achieve any
greater density so will be wasted effort and this will be gauged by the operator (Caterpillar Performance
Handbook; Caterpillar 2007);
•
Where possible, the operator should compact waste up against a sideslope in the order of 1H:3W.
(Caterpillar Performance Handbook; Caterpillar 2007). The compaction effort should be in the direction
upgrade to the slope. This way the braking force of the compactor delivers its force more directly into the
waste face. If a working face does not allow compaction upslope, reasonably effective compaction can
be achieved along a flat surface. Whenever possible, the Operator should avoid compacting waste in a
downslope direction;
•
The Operator will aim to achieve a target compacted waste density of 850 kg/m3 (as monitored by
topographical survey and weighbridge records) by applying an evenly consolidated load by waste
compacting equipment;
•
A minimum of 150 mm of daily cover (7 days week) will be applied to the compacted wastes at the end of
each day as a minimum, no putrescible waste shall remain uncovered at the end of the working day.
More frequent application of daily cover may be required, such as on windy days.
•
If clean fill for soil cover totals more than 15% of the total waste received annually through the gate then
alternative daily cover options shall be investigated.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
32
•
Alternative daily cover applications such a metal hoods, sprays, films or waste-derived materials may be
used in lieu of or in conjunction with soil application. Alternative measures must be cost effective when
compared to soil usage and approved by Council and NRETAS;
•
At approximate final formation, or if the cell is left for any length of time, for example to commence a new
cell, then the surface will be covered with a 300 mm thick layer of interim cover material to prevent
exposure of waste for the period until the final capping layer is constructed;
•
When waste placement returns to an area covered with interim cover, this cover soil material shall be
stripped back and stockpiled for reuse as daily cover soil;
•
At approximate final formation the cell where practical will be covered with a cap constructed to the
specified design and grades (as described in Section 16);
•
Unauthorised waste will be identified, where possible, at the time of disposal and appropriate measures
taken to remove it from the waste stream. Where possible waste vehicles containing unauthorised waste
will be prevented from tipping their load.
Table 5-2
Waste Disposal Performance Criteria
Parameter
Performance Criteria
Waste Layer Thickness Max 0.6 m
Total Lift height
Waste disposal area
(daily cell/tip face)
Compaction method
Final batter slope
construction
Final capping cover
Target Waste Density
Daily Cover
Alternative daily cover
Interim Cover
Cover stockpile
Notes
waste layers shall be placed at approximately 600 mm
uncompacted thickness and compacted thoroughly
Min 2.0 m
- minimum daily lift height 2.0 m after being compacted in layers
- maximum height to be governed by placement methodology on
site and the safety of exceeding 2 m
2
Max 80 m
- Disposal area shall be managed to ensure safety at all times
Eg Approx. 9 m (L) x 9 and managed in daily cells that minimise the extent of exposed
(W)
waste face and usage of soil daily cover material
- the tip face shall be clearly identified with high visibility markers
and signage to promote safety to staff and contractors
Upslope 1(H):3(W)
- waste shall be pushed into the batter slope and upslope
- the tip face area should maintain a waste face with a batter
slope of approx 1 (high) : 3 (wide)
Slope 1(H): 4W
-The final batters slope around the edge of the extent of waste
and forming the final landform shall be a maximum of 1(high): 4
(wide) constructed to aid future constructability and rehabilitation
of the capping system.
Min 1000 mm
See 4.6.2
Min 850 kg/m3
- confirmed by comparison of annual survey and weighbridge
data, AS 1289.5.8.1, 5.2.1, 2.1.1, 5.4.1 shall be used to
determine the cover density in any waste calculations..
Min 150 mm
- applied daily and cut back for reuse at next day. AS 1141.4 will
be used to determine the bulk density of soil.
Cost effective
- alternative as approved by Council
alternative to soil usage - eg removable lids; spray on materials; films etc
Min 300 mm
- cut back and reused prior to placing additional waste
Min 1 000 m3
- stockpile maintained adjacent active tipface
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
33
5.4.4
Cover Stockpiles
A daily cover stockpile of at least 1,000 m³ of suitable soil will be maintained on site. The stockpile will be
accessible in all weather conditions and no higher than two metres.
Stockpiles of materials for the final landfill cap will be maintained as necessary for the construction of the cap.
5.4.5
Processing of Materials
Green Waste
Green waste shall be processed at the landfill site in accordance with Section 4.9. This includes shredding, and
mulching or composting to produce a product suitable for use on the rehabilitated landfill, or on-sold for other
applications in and around Alice Springs.
All green waste shall continue to be diverted from landfill to the processing area for temporary storage prior to
further processing. No green waste shall be disposed of at the tip face.
Inert Waste
Inert waste such as clean soil material, confirmed uncontaminated rock samples and rocky soil material shall be
stockpiled, classified (testing to confirm contamination status) and sorted prior to use as daily or final cover
material on the landfill. Stockpiles shall be no higher than two metres to promote vision about the stockpile and
prevent collapse.
Construction and Demolition Waste
Construction and demolition waste shall be sorted, processed and stockpiled to produce cover materials for the
landfill, or crushed concrete materials for sale. Residual materials resulting from the sorting and processing of
the waste C&D material shall be land filled.
Crushed concrete aggregate produced shall be a uniformly graded coarse aggregate (4-32 mm) as determined by
particle size distribution (PSD) testing from a NATA accredited laboratory, produced by crushing waste concrete
with total contaminant levels of all material other than concrete lower than 2% of the bulk mass (by weight).
Contaminant material includes wood, plastic, glass, asphalt, shale, gneiss or clean fill. The presence of clean soil
within the crushed concrete product is considered a contaminant and therefore the material cannot be classified
and crushed concrete aggregate. Clean fill should be separated at all times from crushing and processing and
used as daily cover only.
The source waste concrete material shall be sorted and clean concrete generated from building rubble,
demolished structures or service pavements, for the purpose of crushing and grading to produce uniform quality
crushed concrete aggregate. Steel/Metal Waste
Recovered steel and metal items shall be stockpiled prior to processing and removal from site. Stockpiles shall be
no higher than two metres to promote vision around the site and minimise the risk a stockpile collapse.
Caution and appropriate measures must be taken when storing sheet metal items or other items susceptible to
being moved by wind.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
34
5.4.6
Resale of Materials
Recycled, recovered or salvaged items will be sold at the Tip Shop as discussed in Section 4.7 and in accordance
with the Tip Shop Operations and Management Guidelines in Appendix G.
An area around the Tip Shop could be reserved for the sale of compost and mulch materials.
5.4.7
Daily Cover
In accordance with the conditions attached to the Environment Protection Licence, the Licensee will ensure that
waste is covered at the end of each day’s operation with a minimum of 150 mm of clean fill, or similar approved
material, or other approved alternative daily covering such as removable lids, spray on materials or films etc.
5.5
Hazardous Waste
A hazardous waste compound has been established on site for storage of hazardous wastes prior to removal by
specialist contractors.
The compound houses a bunded waste oil receptacle, LPG bottle receptacle, bunded battery storage area, a drum
muster area and several enclosures for specified hazardous wastes based on their hazard classification. The
compound is surrounded by a barbed wire topped 1.8 m chain mesh fence.
5.5.1
Hazardous Waste Drop-off
The following items may be dropped off at the hazardous waste facility:
•
Batteries (car and household);
•
household hazardous materials such as bathroom cleaning products, herbicides, pesticides, fertilizers,
floor care products, photographic liquids and water based paints;
•
waste car fluids such as brake and transmission fluid, engine and sump oil, petrol, diesel and kerosene;
•
cooking oil, fats and greases; and
•
gas bottles.
Only domestic household quantities of hazardous wastes shall be accepted at the facility.
5.5.2
Hazardous Waste Handling
Hazardous household wastes shall only be accepted during limited times as specified by the Operator. All
hazardous waste delivered to the site must be stored within the appropriate receptacles within the hazardous
waste compound which shall remain locked at all times.
The Operator will ensure that all site staff that may be responsible for handling hazardous wastes are appropriately
trained to handle all hazardous waste types accepted at the facility, and are knowledgeable in the appropriate
storage methods for all hazardous waste types accepted.
5.5.3
Hazardous Waste Storage and Collection
The collected hazardous waste will be stored in the appropriate waste receptacles and periodically removed by an
appropriately qualified, licensed and Approved Contractor.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
35
The Licensee shall ensure that a suitably licensed Listed Waste Transporter under the Waste Management and
Pollution Control Act is used to receive and remove Listed Waste to and from the site and all other parties involved
in handling Listed Waste that is to be treated and/or disposed of in the Northern Territory must deposit the waste at
a premises that is licensed under the Waste Management and Pollution Control Act to receive that type of waste.
Additionally, the Licensee and all other parties involved in handling Listed Waste to be treated and/or disposed of
elsewhere in Australia must deposit the waste at premises licensed or approved by that State's or Territory's
Authorising Agency to receive that type of waste and in accordance with the National Environmental Protection
Measure for the Movement of Controlled Waste between States and Territories. A copy of the completed Waste
Transport Certificate is to be submitted to NRETAS when Listed Waste is transported interstate.
Where the hazardous waste is deemed to be flammable and/or combustible, storage shall meet with the
requirements contained under AS 1940:2004 The Storage and Handling of Flammable and Combustible Liquids.
Batteries will be collected and stored within a bunded area on timber pallets. Batteries shall be stacked not more
than two rows high. A maximum of six pallets may be stored at the site prior to being removed.
Asbestos management is discussed in Section 13.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
36
6
6.1
Groundwater Management
Groundwater Monitoring Wells
Six groundwater monitoring wells are established and operational. The six wells (MW1 – MW4, MW5A and MW6A)
are sampled and tested for groundwater quality annually. These wells have been continuously monitored since
1999.
The data from future annual monitoring episodes will be used in subsequent operational and post closure
monitoring for comparison.
The groundwater monitoring wells have been surveyed to the top of steel casing, and together with their
construction details are presented below in Table 6-1.
Table 6-1
Groundwater Well Summary
Well Label
Date Installed
MW1
MW2
MW3
MW4
MW5A
MW6A
EMO1
MW(P)01
02/10/1998
02/10/1998
02/10/1998
19/02/2006
19/02/2006
Proposed
Proposed
Total Depth
of well (m)
25.5
12
37
8
18
23.4
Elevation Top of
Casing (mAHD)
565.96
565.41
579.93
564.35
571.05
577.13
Depth to
G/water* (m)
6.58
4.32
20.67
2.14
11.73
17.79
RL G/water
(mAHD)*
559.39
561.10
559.27
562.2
559.32
559.33
* Based on observed levels during February 2009 monitoring round
The locations of the existing groundwater monitoring wells are shown in Figure 4.
6.2
Groundwater Monitoring
Groundwater monitoring activities will be carried out in accordance with the National Environment Protection
(Assessment of Site Contamination) Measure 1999 (NEPM 1999) and AS/NZS 5667.1 Water Quality—Sampling—
Guidance on the design of sampling programs, sampling techniques and the preservation and handling of samples
and include appropriate Quality Assurance and Quality Control (QA/QC) procedures including field blanks,
duplicate samples, sample preservation and chain of custody documentation and decontamination procedures.
Minimum annual inspection and monitoring of the groundwater will be conducted by suitably qualified personnel.
Water quality analysis will be conducted by a NATA registered laboratory. Groundwater sample recovery and field
analysis will be made by suitably qualified and experienced individuals or organisations using calibrated field
instruments. Groundwater reporting shall include a review of the groundwater contours for the site and updating
as required.
When additional groundwater wells are established at the site the information gathered from the installation works
shall be reviewed and the groundwater contour model shall be updated.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
37
Groundwater monitoring will continue after full closure of the site. The duration of post-closure monitoring will be
dependent on the results and trend analysis, potential risks and will be subject to annual review, which may
indicate that post closure monitoring can be reduced or ceased.
Table 6-2
Groundwater Monitoring Schedule
REASONS FOR MONITORING
• Ensure no leachate impact on groundwater
• Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
National Environment Protection (Assessment of Site Contamination) Measure 1999
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
Item
Comment
Key Information
Field Measured Parameters – EC, DO, Eh, pH, Temperature
Laboratory Measured Parameters – as per Table 6-3
Standing Water Level (to AHD)
Condition of monitoring infrastructure including access
Locations
All wells (MW1 to MW6A)
Methodology
As per:
• National Environment Protection (Assessment of Site Contamination) Measure
1999
• AS/NZS 5667.1 Water Quality—Sampling—Guidance on the design of sampling
programs, sampling techniques and the preservation and handling of samples
(1998).
• Groundwater Investigation Levels – NEPM (1999)
Responsibility
Licensee or Qualified consultant
Frequency
Annually, targeting 4 weeks either side of early February to limit the effect of seasonal
fluctuations unless annual review indicates this frequency should be amended
otherwise.
Duration
Throughout operations and post closure subject to annual review
Acceptance Criteria
Trend analysis and no evidence of leachate impact on groundwater (subject to
interpretation by Consultant)
Monitoring wells accessible and in good working order
Reporting - Internal
Annual report
Reporting - External
Annual Report to be submitted to NRETAS
Non Conformance
Carry out further investigations
Procedures
Implement measures to minimise further leachate impacts on groundwater
Repair/Reinstate if damaged
Management Review
Licensee to review procedures and implement recommendations from Annual
Operations and Environmental Monitoring Report.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
38
Table 6-3
Groundwater Analysis Requirements – All wells
Laboratory Analysis
pH
TDS
Eh
COD
TOC
Nitrogen (as Ammonia)
Nitrite and nitrate
TKN
TSS
BOD
phosphorus
fluoride
calcium
Magnesium
Sodium
potassium
chloride
bicarbonate
sulphate
Field Analysis
Temperature
Standing water level (to AHD)
pH
6.3
Total iron
Phenols (by speciation)
Arsenic (As)
Boron
Cadmium (Cd)
Chromium (Cr)
Copper (Cu)
Nickel (Ni)
Lead (Pb)
Mercury (Hg)
Selenium (Se)
Manganese (Mn)
Zinc (Zn)
TPH
BTEX
PAH
Pesticides and Herbicides
VOC’S
SVOC’s
Redox Potential (Eh)
Electrical Conductivity (EC)
Dissolved Oxygen
Reporting
A summary report of all sampling and monitoring undertaken on site will be prepared annually. The report will
include:
•
all field and laboratory analytical data collected during the review period;
•
all groundwater levels measured;
•
details of any changes in waste facility operation procedures that may have impacted on the quality of
groundwater beneath the site;
•
any incidents which may have resulted in release of leachate to the environment;
•
an assessment of monitoring results including trend analysis;
•
a summary of recommendations; and
•
updated groundwater contour model.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
39
7
Leachate Management
7.1
General
Leachate generation is limited at the site due to local climatic conditions, the relatively dry makeup of landfill
wastes and the use of soil to cover waste.
On average the area experiences approximately 280 mm of rainfall and approximately 3,106 mm of evaporation
annually.
In accordance with good landfilling practice, soil coverage is applied to the compacted waste to isolate the waste
from the environment and human contact until the landfilling area is eventually capped in accordance with an
approved Closure Plan.
Surface water runoff generated from within the landfilling area following rain events is considered leachate due to
the potential of the material to come into contact with the deposited wastes. When present this runoff shall be
directed via surface drainage to local surface depressions within the landfill site for temporary storage. This limits
its impact on landfilling operations and offsite receptors and ensures that the water remains ponded until it
evaporates. Leachate shall remain separated from clean surface water runoff such as clean offsite water that
enters the site on the western side of the site and ponds temporarily. Clean and potential leachate affected surface
water shall be directed or intercepted to the leachate area as shown in Figure 5.
The majority of rainfall that infiltrates into the soil covering the waste mass will be managed via evaporation.
7.2
Leachate Monitoring Wells
Two leachate monitoring wells are established and operational. The two wells (MW37 and MW38) are sampled
and tested for levels and water quality annually. These wells have been continuously monitored since 1999.
Leachate monitoring data is useful in the event of a suspected leachate to groundwater impact detected at any of
the external groundwater monitoring wells through comparison of the leachate analysis with the suspected
impacted groundwater sample.
The locations of the existing leachate monitoring wells are shown in Figure 4.
7.3
Leachate Monitoring
The Licensee will carry out leachate monitoring in accordance Section 6.2 and with the schedule set out in Table
7-1 below.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
40
Table 7-1
Leachate Monitoring Schedule
REASONS FOR MONITORING
• Check presence and quality of leachate
• Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
National Environment Protection (Assessment of Site Contamination) Measure 1999
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
Item
Comment
Key Information
Field Measured Parameters – EC, DO, Eh, pH, Temperature
Laboratory Measured Parameters – as per Table 7-2
Leachate levels in collection sump within the leachate monitoring wells (to AHD)
Condition of monitoring infrastructure
Locations
MW37 and MW38
Methodology
As per:
• National Environment Protection (Assessment of Site Contamination) Measure
1999
• AS/NZS 5667.1 Water Quality—Sampling—Guidance on the design of sampling
programs, sampling techniques and the preservation and handling of samples
(1998).
Responsibility
Licensee or Qualified consultant
Frequency
Annually, targeting 4 weeks either side of early February to limit the effect of seasonal
fluctuations unless annual review indicates this frequency should be amended
otherwise.
Duration
Throughout operations and post closure subject to annual review
Acceptance Criteria
Samples analysed for comparison with groundwater sample test results
Monitoring wells accessible and in good working order
Reporting - Internal
Annual report
Reporting - External
Annual Report to be submitted to NRETAS
Non Conformance
Repair/Reinstate if damaged prior to next monitoring round
Procedures
Management Review
Licensee to review procedures and implement recommendations from Annual
Operations and Environmental Monitoring Report.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
41
Table 7-2
Leachate Analysis Requirements – All wells
Laboratory Analysis
pH
TDS
Eh
COD
TOC
Nitrogen (as Ammonia)
Nitrite and nitrate
TKN
TSS
BOD
phosphorus
fluoride
calcium
Magnesium
Sodium
potassium
chloride
bicarbonate
sulphate
Field Analysis
Temperature
Standing water level (to AHD)
pH
7.4
Total iron
Phenols (by speciation)
Arsenic (As)
Boron
Cadmium (Cd)
Chromium (Cr)
Copper (Cu)
Nickel (Ni)
Lead (Pb)
Mercury (Hg)
Selenium (Se)
Manganese (Mn)
Zinc (Zn)
TPH
BTEX
PAH
Pesticides and Herbicides
VOC’S
SVOC’s
Redox Potential (Eh)
Electrical Conductivity (EC)
Dissolved Oxygen
Reporting
A summary report of all sampling and monitoring undertaken on site will be prepared annually. The report will
include:
•
all field and laboratory analytical data collected during the review period;
•
all leachate levels measured;
•
details of any changes in waste facility operation procedures that may have impacted on the
characteristics beneath the site;
•
an assessment of monitoring results compared to groundwater analysis; and
•
a summary of recommendations.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
42
8
8.1
Surface Water, Erosion and Mud Management
Surface Water Controls
The surface water flow around the facility during the operational phase (external) will be controlled by cut off
swales and drains. Flow direction and ponding of surface water in shown in Figure 5.
Water falling into the operational areas (internal) will be controlled so that it is separated into both clean surface
water runoff and potentially contaminated runoff (leachate).
8.1.1
External Drainage
External drainage refers to surface water runoff outside the landfilling footprint. Drainage swales and bunding shall
be established based on surface runoff direction and maintained so that this water is diverted around the facility
and discharged back into the naturally occurring surface water system. Drainage will be sized to preclude the
inundation of the operational area from a 1 in 100 year ARI rain event.
8.1.2
Internal Drainage
Internal drainage shall consist of swales and bunding managing clean surface water runoff on the landfill footprint
and considered potentially contaminated surface water by leachate.
Clean water runoff from the batters slopes around the disposal cell will be directed to the surface water detention
area. Leachate will be contained within the disposal cell area.
Surface runoff falling within the operational areas of the facility and not contacting waste will be managed at the
site to ensure:
•
as much surface water as possible is excluded from entering the active disposal areas;
•
ensure uncontrolled ponding of water in operational areas is prevented;
•
ensure access roads remain accessible in most weather conditions;
•
manage surface water within the facility, preventing uncontrolled offsite surface water discharges;
•
minimise the generation of leachate from exposure of clean water to contaminants to minimise leachate
generation; and
•
prevent soil erosion and uncontrolled exposure of waste due to loss of soils cover.
Maintenance of effective surface water controls will be carried out, as required, as part of operational works
associated with the facility.
Surface water runoff generated from within a working cell is to be treated as leachate and contained to the disposal
cell area or the surface water detention area.
8.2
Mud and Slurry Control
The main sources of fugitive mud and slurry are from the crushing and screening plant, landfilling areas covered
with interim cover soils, interim cover soil erosion and vehicles driving on soil surfaces and access roads.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
43
To ensure effective mud and slurry management and control:
8.2.1
•
Ensure site drainage is in good order;
•
Check access roads are shaped for effective runoff;
•
Clear and regrade roads as required;
•
Check all access roads for muddy conditions;
•
Temporarily close access to wet and soft surfaces; and
•
De-silt sedimentation in drains and ponding location if silt build up is excessive.
Future Surface Water and Erosion Management
Additional surface water management elements will be implemented, as required, as disposal progresses within a
given stage and new cells are developed and capped. Future surface water management elements will include:
8.3
•
Progressive construction of swales and service water diversion drainage around the perimeter of the
finished cell capping to direct runoff to the clean surface water area as shown in Figure 5; and
•
Erosion control measures.
Surface Water Monitoring
Surface water drainage at the site will be inspected weekly by the Operator and if erosion and/or silting are
evident, the cause will be investigated and the damage will be repaired and the drainage system reinstated, as
appropriate.
During the operational life of the facility, soil cover and water management bunds will be inspected for erosion and
if cracks or holes are evident, the missing cover materials will be replaced immediately to ensure separation
between waste and the environment.
8.4
Surface Water and Erosion Maintenance
The condition of the surface water drainage system including swales, drains, ponds and erosion protection shall be
inspected weekly and after major rainfall events.
The maintenance, repairs and remediation measures to be undertaken by the Operator for the duration of
operations at the site is outlined in Table 8-1.
Scouring shall be repaired by reapplication of eroded materials and measures implemented to reduce the potential
for reoccurrence.
Table 8-1
Surface Water, Erosion and Mud Maintenance Schedule
Item
Performance indicators
Access Roads
Erosion of surface
materials
Erosion and ponding of
water
Surface Water
Drainage System
Potential Maintenance, repairs and remediation
measures
Replace lost materials, regrade as needed
Remove silt or excessive vegetation and dispose
Remove accumulated silt from perimeter drains as required;
Repair and/or replace damaged components
Regrade or reroute as needed
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
44
Item
Performance indicators
Interim cover/Cap
Erosion, settlement,
cracks or holes
Ponding of water
Revegetation and
Landscaping
Loss of grass cover
Loss of plantings
Excessive Pest Plants
growth
Potential Maintenance, repairs and remediation
measures
Re-establish surface water drainage system
Reconstruct missing cover replacing all materials to the
same standard as designed, constructed and certified.
Additional cover if desiccation and cracking is observed,
installed to the same standard as designed, constructed and
certified
Drain or pump off water, fill depressions, regrade slopes and
revegetate as described above
Investigate cause and remedy appropriate; re-topsoil and
reseed
Investigate cause and remedy as appropriate; replace
plantings
Spray or remove pest plants if practical to do so; if removed,
dispose off in designated disposal areas (e.g. landfill)
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
45
9
9.1
Landfill Gas Management
Landfill Gas Production
Landfill Gas (LFG) is produced as the organic matter in waste is decomposed by bacteria under anaerobic
conditions. LFG is typically produced within 6 to 12 months of initial waste placement and may continue for
decades in dry environments. The gas generation within any facility generally rises to a peak shortly after final
capping of the site and then declines at a rate that is dependent on waste placement and compaction,
composition, moisture content and other environmental factors.
The environmental impacts of LFG are in three areas:
•
global – methane from LFG is a greenhouse gas;
•
regional – LFG can cause odours off-site; and
•
local – LFG can prevent the revegetation of the site and surrounds.
In addition, LFG can pose a human health and/or explosion hazard if it migrates into building structures on and
adjacent to facilities. The risk of adverse impacts to human health and/or the environment on or near this site are
increased as there is no barrier layer or liner to confine the LFG to the waste mass, thereby promoting the
migration potential of the LFG.
LFG emissions will be monitored during the life of the facility operation and after site closure until potential
emissions no longer pose unacceptable health or environmental risks.
9.2
LFG Management
Landfill management current best practice requires that the potential hazards posed by LFG such as adverse
environmental impacts, explosion hazard and asphyxiation are managed during the facility’s operational and post
closure phases.
The required outcomes for best practice LFG management relative to this site include:
•
no adverse impacts on-site or offsite from LFG;
•
minimise greenhouse gas emissions as far as practical;
•
LFG concentrations at the boundary to not exceed 1% methane by volume or 1.5% carbon dioxide by
volume;
•
Prevention of explosive concentrations and impact to human health or infrastructure;
•
Prevention of nuisance odours and management of airborne toxic gases or pathogens so as to not
impact on the community;
•
Monitoring of LFG to ensure risk of impacts minimised and to monitor performance to guide future LFG
management measures.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
46
9.3
LFG Monitoring
The Licensee utilising an experienced contractor will be responsible for monitoring of the LFG wells. The
Consultant will carry out LFG monitoring, in accordance with the schedule set out in Table 9-1 below.
Monitoring will occur at locations as shown in Figure 4.
Table 9-1
Landfill Gas Monitoring Schedule
REASONS FOR MONITORING
Protect public health and safety, and responsible environmental control
Prevent accumulation of explosive concentrations
Assess for indicators of LFG migration
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
Item
Comment
Key Information
Field measured parameters – CH4, CO2, O2, atmospheric pressure
Locations
All LFG monitoring wells (EM01, LG 7, 8, 9, 10A(U, L), 12(U, M, L),& 13)
Enclosed/confined spaces in buildings or infrastructure within 250 m of
landfilling footprint
Methodology
Concentrations measured by handheld specialist LFG monitoring
equipment. Measured as a percentage by volume.
Inspect condition of wells or additional introduced infrastructure
Responsibility
Licensee
Frequency
Annually to coincide with other monitoring whilst consultants on site.
Duration
Throughout operations and post closure subject to annual review
Acceptance Criteria
Methane less than 1% (by volume) and CO2 is less than 1.5% (by volume)
within perimeter wells
Wells in serviceable condition
Reporting - Internal
Annual Report to be prepared
Reporting - External
Annual Report to be prepared by Licensee and submitted to NRETAS
Non Conformance Procedures
Licensee to notify NRETAS within 48 hrs of notification of exceedance
Carry out further investigations, as appropriate.
Detail actions taken in Annual Report as appropriate
Maintenance and repairs as necessary. Reinstate well if damage beyond
repair
Management Review
Licensee to review procedures and implement recommendations from
Annual Operations and Environmental Monitoring Report
9.4
Additional Information
Any buildings or structures erected on the site within 50 m of the waste mass shall have gas monitoring beneath
slabs or in unventilated enclosures or rooms, or have ventilation added.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
47
10 Vegetation and Visual Impact Management
10.1
General
This section shall apply to established vegetation on the periphery to landfilling activities, vegetated buffers and
screening and vegetation established as part of capping and rehabilitation works. These areas shall be continually
monitored for adequate condition, growth and survival.
Generally the site as it currently exists, the extent of historical landfilling is completely devoid of vegetation due to
its landfilling history. The post-closure use of the site is to return to a rehabilitated natural state as capping is
completed. Therefore no significant plantings other than small shallow rooting shrubs and grasses are anticipated
over the capped areas.
10.2
Implementation
It is recommended that where additional revegetation to that currently existing is undertaken, direct seeding or tube
stock planting be carried out for all revegetation of trees, shrubs and native grasses primarily for ease of
maintenance and higher success rates. Direct seeding is known to have a high success rate in the region of the
facility and shall be the preferred revegetation option. Plastic collars and stakes may be necessary to ensure that
rabbit populations do not destroy the young vegetation.
The plants will require watering at the time of planting, and if the following summer is particularly harsh will require
additional watering. It is recommended that planting occur in the autumn months or early in the spring months to
ensure establishment prior to summer. After the summer season these plants could be left unattended other than
occasional monitoring.
10.3
Vegetation Monitoring
Monitoring of vegetation shall be undertaken on annually basis as detailed in Table 10-1. The success of
vegetation measures and pest plant control shall be monitored quarterly and coinciding with the end of each
summer period to inspect adequate growth and survival. This will enable replanting if required or supplemental
planting during cooler, wetter months.
Once vegetation has been re-established a summary report of all monitoring will be prepared annually. The report
will include:
•
field data and photographs collected during the monitoring period;
•
details of any noticeable impacts;
•
a summary of monitoring results.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
48
Table 10-1
Vegetation and Screening Monitoring Schedule
Item
Comment
Key Information
Condition of vegetation and emergence of pest vegetation
Locations
Walkover of vegetated areas and mounds
Methodology
Visual inspection
Responsibility
Licensee
Frequency
Annually at the end of summer or 6 weeks after major rainfall.
Duration
Throughout operation of the site and post closure subject to review
Acceptance Criteria
Established, fair condition, growth and coverage
Reporting – Internal
Annual results to Licensee
Non Conformance Procedures
Revegetate where necessary
Management Review
Licensee to review and implement recommendations from Annual
Operations and Environmental Monitoring Report
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
49
11 Air Quality and Noise Management
11.1
Dust Management
The main sources of dust are from the construction and demolition (C&D) crushing and screening plant, landfilling
areas covered with interim cover soils, works at the operating face and vehicles driving on interim cover and
access roads.
To ensure effective dust, the Licensee will adhere to procedures set out in Table 11-1.
Table 11-1
Procedures for Dust and Mud/Slurry Control
REASONS FOR CONTROL
Dust can cause environmental nuisance, both on and off site
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
−
National Environment Protection Council (NEPC) National Environment Protection Measure (NEPM) for
Ambient Air Quality
Item
Comment/Action
Key Information
Field measures – continuous visual surveillance for dust emissions
Routine Monitoring – PM10 averaged over 1 hour
General Dust Control
Construct and maintain designated all weather access roads
Procedures
Ensure dust suppressant (water cart) is operational at all times
Check need for dust suppression on access roads, based on weather and usage
Use water tanker as required
Inspect bare surfaces and stockpiles daily for dusty conditions
traffic speeds kept below 15 km/hour to minimise dust generation
Crushing Equipment
Where possible avoid locating crushing plant in the path of prevailing wind towards Little
Dust Control
Sisters Camp
Procedures
Avoid establishing crushing plant near any site boundary
Avoid using the crushing equipment when wind direction is towards the Little Sisters
Camp
No use off crushing plant when wind exceeds 20 km/hr in direction of Little Sisters Camp
Avoid using the crushing equipment when wind exceeds 30 km/hr in any direction
Water trucks fitted with hoses with spray nozzles shall be used during crushing and
relocation of fines stockpiles
All fines stockpiles to be wetted or removed during moderate or higher wind conditions
Field Monitoring
Weekly visual inspections and complete checklist
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
50
Routine Monitoring
Methodology
Frequency
Duration
Responsibility
Locations
Conformance Criteria
Reporting - Internal
Reporting - External
Non Conformance
Procedures
Management Review
Dust monitoring in accordance with AS 3580 using specialised continuous dust
monitoring equipment
Airborne dust levels to be monitored for PM10 and averaged over 24 hours
Time intervals for all data to be reported
Meteorological information recorded for each monitoring period recorded – wind speed
and direction, temperature, rainfall
Data to be analysed weekly following data recovery and actions taken immediately as
required
D01 and D02 located alternately using a single monitoring device
D03 continuously monitored
Data collected from all units weekly
Throughout operations and post closure subject to annual review
Licensee
As noted on Figure 4
No off-site impacts
No adverse on-site impacts, including human health and environmental nuisance
24 hour average PM10 not to exceed 50 ug/m3 on more than 5 days per year
(as per National Environment Protection Council (NEPC) National Environment
Protection Measure (NEPM) for Ambient Air Quality)
Annual report
Annual Report to be submitted to NRETAS
Investigate cause of unacceptable dust levels
Check adequacy of procedures
Implement corrective actions and modify procedures
Document in Annual Operations Report and Environmental Monitoring Report including
review and comment
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
51
11.2
Litter Control
The most common form of litter associated with disposal of domestic waste is plastic bags, together with paper
products. The movement of the litter away from the operating cell is proportional to wind speed. The elevated
topography of the facility relative to the surrounds can also produce winds which influence litter movement.
To ensure effective litter control, the Operator will adhere to procedures set out in Table 11-2 below.
Table 11-2
Procedures for Litter Control
REASONS FOR CONTROL
Windblown litter can cause environmental and aesthetic nuisance, both on and off-site
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
Item
Comment/Action
Conformance Criteria
No litter to escape site boundaries
Litter within facility not to be visible from offsite properties or transport corridors
Litter to be collected and disposed of as often as necessary to maintain tidy
appearance
General Strategies
Provide litter control measures around current cell (e.g litter fence)
Minimise area of working face
Apply daily cover (soil, plastic sheeting or fabricated metal lids) or more frequently
as required
Ensure prompt compaction of waste
Ensure all vehicles entering facility have loads covered if transporting waste which
can produce litter
Regular visual checks and weekly litter pick ups
Good housekeeping and tidiness
Inspection of boundaries and beyond the landfill area for litter each week
Litter Pick Up Procedures
Check litter control fence, site boundary fences, all landscaped areas daily and as
required
Pick up litter if required, put into bags, leaving bags at litter locations
At end of each day, collect all litter bags and empty in operating cell
Check external properties including roadways adjacent to site boundaries following
each days operation to ensure these are free of litter
Special Procedures for
Implement all litter pick up procedures as above
Windy Days (greater than
Apply layer of daily cover to waste as soon as practicable after it is deposited
25 km/h forecast)
Recording & Reporting
Weekly Inspection and complete checklist by Operator for Licensee.
Non Conformance
Procedures
Management Review
Investigate cause of uncontrolled litter
Check adequacy of procedures
Implement corrective actions and modify procedures
Document above in Annual Operations Report and Environmental Monitoring
Report
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
52
11.3
Noise
To ensure effective noise control, the Operator will adhere to procedures set out in Table 11-3 below.
In accordance with the NT Workplace Health and Safety Regulations - Part 6 S.56, an employer must ensure that
a worker is not exposed at a workplace to noise exceeding the national standard for exposure to occupational
noise as specified in National Occupational Health and Safety Commission - NOHSC: 1007.
Table 11-3
Procedures for Noise Control
REASONS FOR CONTROL
Minimise occupational workplace noise and potential for off-site nuisance due to use of machinery
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
−
Northern Territory Workplace Health and Safety Regulations, 2008
Item
Comment/Action
Conformance Criteria
Maximum permitted noise levels as permitted by National Occupational Health
and Safety Commission - NOHSC: 1007
The national standard for exposure to noise in the occupational environment is
an eight-hour equivalent continuous A-weighted sound pressure level,
LAeq,8h, of 85 dB(A). For peak noise, the national standard is a C-weighted
peak sound pressure level, LC,peak, of 140 dB(C).
Noise Control Procedures
Ensure all staff operating plant or machinery or in the vicinity of operational
areas of the site are equipped with, and utilising personal protective equipment
(PPE).
Ensure all facility equipment is fitted with noise suppressants, including mobile
plant for large scale/intensive works
Ensure that machinery is only operated between approved working hours
Ensure all facility equipment is adequately maintained
Ensure correct operation of all facility equipment
Monitor all incoming vehicles for noise and if necessary, refuse access to
vehicles producing excessive noise
Recording and Reporting
Regular perimeter monitoring and Weekly Inspection (visual) to ensure PPE
being utilised. Complete checklist.
Non Conformance Procedures
Investigate cause of reported elevated noise
Check adequacy of site operational procedures
Implement corrective actions and modify procedures
Management Review
Document above in Annual Operations Report and Environmental Monitoring
Report
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
53
11.4
Odour
The chief source of odour emanating from the operating cell occurs when putrescible waste is being tipped and
compacted. Experience at many depots indicates that these odours are rarely detected at 500 m from the
operating cell.
Observations of odour will be made at locations along the site boundary that border occupied properties.
Measures will be undertaken to identify the source and the cause of such odour, and to rectify the situation
immediately.
Staff monitoring odour should be aware of and note wind direction and determine whether any odours present are
emanating from the waste water lagoons on the adjacent property.
To ensure effective odour control, the Operator will adhere to procedures set out in Table 11-4 below.
Table 11-4
Procedures for Odour Control
REASONS FOR CONTROL
Potential for odour to cause environmental nuisance, both on and off-site
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
Item
Comment/Action
Conformance Criteria
No unacceptable site generated odours extending off-site
Odour Control Procedures
Ensure application of daily cover to all wastes at the end of each day, or more
frequently if required
Recording and Reporting
Weekly Inspection
Non Conformance Procedures
Investigate cause of odour
Check adequacy of procedures
Implement corrective actions and modify procedures
Management Review
Document above in Annual Operations Report and Environmental Monitoring
Report
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
54
12 Bird, Vermin, Pest and Weed Management
Weed and pest control will be implemented on-site as required by the Operator or as instructed by Licensee. As
part of the weekly inspections of the site, the occurrence of birds, vermin, dogs, cats or weeds will be observed
and action taken as appropriate, as detailed in Table 12-1 below.
Table 12-1
Procedures for Bird, Vermin, Pest and Weed Management
REASONS FOR CONTROL
Prevention of adverse impacts to the site of birds, vermin, pests and weeds.
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Weeds Management Act
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
Item
Comment/Action
Conformance Criteria
No disposal of declared weeds in the greenwaste stockpile
Control Procedures
Ensure application of daily cover to all wastes at the end of each day, or more
frequently if required
If bird numbers become excessive undertaken steps to remedy the situation as
appropriate i.e. by applying more clean cover material to minimise the occurrence of
birds, or by developing an active bird control program acceptable to NRETAS;
If rats or similar vermin, are observed an improved control program shall be
implemented and monitored, in particular, to protect those areas to be direct seeded.
This may include destroying rabbit warrens and baiting strategies;
If potentially airborne weeds are observed on stockpiled materials, or water borne
seeds are detected on lower lying areas of the site, they shall be immediately
sprayed. Other areas shall be sprayed in accordance with the annual weed spraying
program as part of the landscaping plan.
Alice Springs Town Council does not accept declared weeds in the green waste
stockpile. If declared weeds are discovered in the green waste stockpile they shall
be removed immediately by the landfill operator and transferred to the tipface where
they can be buried in-situ.
Where declared weeds are illegally disposed of at the landfill, or are found growing
at the landfill they should be treated and destroyed in accordance with the
requirements of the Weeds Branch of NRETA.
Recording and Reporting
Non Conformance
Procedures
Management Review
Personnel maintaining the landfill should able to identify the various types of
declared weeds which may exist in the region so that they can monitor for their
presence at the facility and undertake appropriate treatment and destruction action.
Weekly Inspection
Investigate cause of occurrence
Check adequacy of procedures
Implement corrective actions and modify procedures
Document above in Annual Operations Report and Environmental Monitoring Report
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
55
13 Asbestos Management
13.1
Asbestos
Asbestos was widely used in over 3000 building and construction products in Australia between the 1940s and late
1980s. Asbestos is a group of naturally occurring fibrous materials that can pose serious health risks if fibres
become airborne and are inhaled. Fibres that become trapped in the lungs can result in serious lung diseases
many years later such as asbestosis, lung cancer and mesothelioma.
Asbestos can either be in friable or non-friable forms. Friable asbestos can be crumbled, pulverised or broken into
a powder by hand pressure. This form is the most likely to pose a health risk due to the high chance of fibres
becoming air-borne. Friable asbestos waste may be from sources such as insulation from old household heaters
and stoves, and insulation from public or commercial buildings.
Non-friable asbestos is unlikely to cause fibres to become airborne unless it is broken, drilled, cut or other activities
that are likely to produce dust. This is a less risky form of asbestos, but should still be handled with care. Nonfriable asbestos may typically be found in cement (or “fibro”) sheeting from household walls and roofing, asbestos
cement roofing materials, water pipes and flues, vinyl tiles impregnated with asbestos fibre and brake linings,
among many other materials.
To aid in the identification of asbestos arriving at site Appendix D contains Appendix 3 of the Asbestos
Management Guidelines Roles and Responsibilities for Government Agencies, Northern Territory Department of
Health and Families, 2008, which identifies some of the various asbestos containing materials that may present at
the landfill site.
The Guidelines require that special procedures be developed for the handling and disposal of this type of waste.
The following sections summarise the procedures that should be followed by all staff, sub-contractors, visitors and
customers of the site.
In all instances, asbestos shall be managed at the landfill site in a manner that will provide protection of humans
and the environment, during acceptance at the site and during disposal and long term once buried, from the
potential adverse effects of exposure to asbestos.
13.2
13.2.1
Asbestos Management Roles and Responsibilities
Council
As the Licensee, Council retains overall responsibility for the appropriate disposal of asbestos at the landfill site
and protection of humans and the environment from the potential adverse effects of exposure to asbestos.
Council will be responsible for regularly reviewing the asbestos management procedures and will assist in terms
of the risk assessment to ensure it retains its relevance to best practice Asbestos disposal procedures, site
operations and human safety. The Asbestos Management Plan shall provide minimum standards for the Operator
relating to the acceptance, disposal and reporting of asbestos. Whenever the Asbestos Management Plan is
updated and released, Council shall provide the Operator with the latest version.
Council will be responsible for ensuring the Operator manages asbestos appropriately. This will include periodic
inspections of the site to:
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
56
13.2.2
•
Review the Operators Asbestos Management Work Plan;
•
Monitor that the Operator is working in accordance with the Asbestos Management Plan; and
•
Monitor that the Operator is working in accordance with their own site Asbestos Management Work Plan.
Operator
The Operator is responsible for the acceptance, handling, disposal and recording of disposal locations as
stipulated in this Asbestos Management Plan.
Additionally, the Operator as an employer, has responsibility to comply with government policy and legislative
requirements in the management of asbestos containing materials (ACM) in workplaces and maintain a safe
working environment under the provisions of:
•
Regulation 3.1a of the Occupational Safety and Health Regulations 1996 (OSH Regulations 1996), which
requires an employer to identify hazards at a workplace, assess the risk of harm to a person from each
hazard and to take steps to reduce the risk.
•
Regulation 5.43 (OSH Regulations 1996) which specifically requires the presence and location of
asbestos at a workplace to be identified and that the process of identification and risk assessment is
conducted in accordance with the Code of Practice for the Management and Control of Asbestos in
Workplaces [NOHSC:2018 (2005)].
The Operator will be responsible for developing their own risk assessment of human health and environmental
impacts for asbestos disposal at the site which will facilitate development of their own asbestos management
procedures and Asbestos Management Work Plan at the site.
The Operator will be responsible for following the procedures as described in their Asbestos Management Work
Plan.
13.2.3
Disposer (Customer)
Customers wishing to dispose of asbestos at the landfill site have a responsibility to present asbestos for disposal
in accordance with the Operators requirements for receipt of asbestos. Packing, transport and disposal of
asbestos must conform to NOHSC:2002 (2005).
If refused entry, the public have the responsibility of appropriately packaging the material prior to returning to the
site to dispose of the material.
13.3
13.3.1
Asbestos Management Minimum Procedures
Asbestos Acceptance
Asbestos products will be collected, transported, and disposed of in accordance with regulations which govern the
disposal of asbestos waste. The site is licensed to accept asbestos with no limitations on the form that may be
accepted (ie both friable and non-friable are able to be accepted).
Asbestos products which are not correctly packaged for delivery and disposal will be refused entry at the landfill.
This includes mixed loads ie loads of general waste containing asbestos. Mixed loads must be entirely treated as
an asbestos load and therefore completed encapsulated in double wrap plastic. The fee payable will be the
asbestos disposal fee for the entire load.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
57
Council will charge for the disposal of asbestos waste at its waste management facilities in accordance with the
current fee & charges schedule as listed at the front gate. Commercial quantities of asbestos are not accepted
unless by prior arrangement with Council.
13.3.2
Receiving Asbestos
Alice Springs residents that wish to deposit asbestos must make a booking with the Landfill Operator 24 hours
before anticipated delivery. The landfill contractor will complete an entry into the asbestos register at the
weighbridge, which includes the weight, type and origin of the material. Details of the property and building that the
material originated from must be included.
Extra-municipal waste, or waste from outside the Municipality of Alice Springs, will not be accepted at the Alice
Springs Landfill until such time as a regional asbestos and hazardous waste facility is commissioned.
Asbestos must be securely double-wrapped in plastic film and completely sealed upon arrival.
The attendant at the gatehouse must check that the asbestos is wrapped as noted above; otherwise the load will
be refused.
The gate attendant shall also conduct checks of possible or suspected loads where asbestos material may be
present but was not declared. Similarly, non-conforming loads (eg insufficiently wrapped or with damaged
wrapping) will be refused.
Waste soil containing asbestos will not be accepted at the landfill.
13.3.3
Handling Asbestos
Employees handling asbestos material must wear a conforming Filtered Breathing Mask at all times during the
handling, transport and disposal of asbestos.
Customers will drop off their asbestos as directed by site staff but are not permitted into the asbestos waste cell.
Employees are also required to wear masks if handling packaged asbestos on the landfill site.
13.3.4
Disposal and Covering of Asbestos
Once asbestos has entered the site the customer is directed to the asbestos waste cell where they unload their
waste into the cell, under constant supervision from the contractor, via a ramp. Once unloaded the customer shall
immediately leave the area. Disposal of asbestos from the top of the cell, must be avoided at all times and where
possible use a cell and ramp system.
Asbestos fibre and dust waste shall be buried at a minimum or three metres, stabilised asbestos waste in a
bonded matrix must be buried at a minimum depth of one metre.
A machine operator will then carefully lift or push the waste into the cell. Machine operators must be extremely
careful to avoid breaking of the plastic wrap or breaking of the waste itself. In the case of any asbestos spillage
the operator must implement the contractor’s asbestos management work plan.
Pre-planning and using the right equipment by operators during burial of asbestos is important to ensure efficient
space utilisation and safety(e.g. use of loader with a 4 in 1 bucket).
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
58
The asbestos waste is covered with 500 mm of fill preferably immediately, otherwise must be covered by the end
of the day. Fill should be screened to exclude rocks etc. larger than 100 mm in size to minimise the risk of breaking
the plastic wrap. A stock pile of 100 cubic meter fill must be maintained adjacent to the asbestos cell.
An orange marker mesh shall be buried 1 meter below the final capped surface to reduce the risk of disturbing any
asbestos. The contractor must seek the approval of Council before any new asbestos cell is developed outside the
current asbestos burial site.
Asbestos waste cells must be clearly identified and bunded or fenced, and located with GPS coordinates for future
reference.
In the event of asbestos being identified at the tip face that has been illegally placed, it should be removed from
the tip face and/or handled in a manner that’s in accordance with the contractor’s asbestos handling procedures.
13.3.5
Historically Disposed Asbestos
Historically disposed asbestos shall be identified as encountered with star pickets, hazard tape and signage
warning of its existence and located and logged by GPS coordinates for future reference.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
59
Table 13-1
Procedures for Asbestos Management
REASONS FOR CONTROL
Prevention of asbestos exposure to site staff and the public.
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
−
Guidelines (NT Workplace Health and Safety Regulations 2008)
Item
Comment/Action
Conformance Criteria No off-site impacts
No adverse on-site impacts, including environmental nuisance
No human exposure or health impacts
Accurately defined and recorded asbestos burial sites
Waste soil containing asbestos will not be accepted
Gatehouse
Booking with landfill Operator by residents made 24 hours in advance through contact
Acceptance
with weighbridge (gatehouse operator)
Procedures
Asbestos double-wrapped in plastic and securely sealed
Zero acceptance of non-conforming asbestos waste, including mixed loads
Handling and
All employees to wear appropriate filtered breathing masks at all times when handling
Disposal Procedures
asbestos waste
Customers not permitted into the waste cell unless supervised by the contractor
Plastic wrap around waste not to be compromised
Waste covered with 500 mm of fill immediately or at least by the end of the day
No rocks etc. larger than 100 mm to be contained in the cover fill
Clearly identified and fenced/ bunded asbestos cell
GPS locating/mapping of current asbestos disposal
GPS locating/mapping of historically disposed asbestos as encountered
Use orange marker mesh 1m below the final cap surface
Recording and
Asbestos Register updated at weighbridge with details of time and date of delivery to
Reporting
site, property/building of origin of asbestos, type of waste and weight, vehicle
registration, name, contact details of disposer and the source of the asbestos (e.g
regional or local)
Weekly Inspections of the asbestos disposal area
Total volumes included in annual reporting
Non Conformance
Investigate causes of non-conforming waste
Procedures
Check adequacy of procedures
Implement corrective actions and modify procedures
Management Review
Document in Annual Operations Report and Environmental Monitoring Report including
review and comment
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
60
14 Used Tyres Management
14.1
Used Tyres
18 million tyres are estimated to be produced each year in Australia alone. This represents a large number of
waste tyres that are sent to landfill at the end of their life. Whole tyres take up large volumes of air space when
buried in a landfill and pose a serious fire hazard when stored (or buried) in large quantities.
Larges storages of tyres can self-combust and tyre fires cause intense heat and thick smoke, which are very
difficult to control and extinguish, requiring large amounts of water. Neighbouring buildings can also be damaged
from the intense heat, and adverse environmental impacts can occur to the soil and surrounding waterways. Tyre
storages also provide a breeding habitat for insects and other vectors.
The appropriate management of both stored and buried tyres is required to extend the longevity of landfill, promote
fire safety and minimise the potential for adverse environmental impacts.
The General Guidelines for the Outdoors Storage of Used Tyres by the South Australia Fire Services is a
comprehensive and useful document and has therefore been referred to in this section to establish the landfill’s
management practices.
The landfill’s licence states that whole tyres can be accepted, but that only shredded tyres can be buried. The
Guidelines require that special procedures be developed for the handling and disposal of this type of waste. The
following sections summarise the procedures that should be followed in the storage and disposal of tyres.
14.2
Used Tyre Acceptance
Tyres will only be accepted at the landfill if they are properly declared at the weighbridge. Council will charge for
the disposal of tyres in accordance with the current fee & charges schedule as listed at the front gate. Commercial
quantities of whole tyres are not accepted. Whole tyres from mining trucks are also prohibited.
14.3
Used Tyre Management
In accordance with the Environment Protection Licence for the site, no whole tyres shall be disposed of to landfill.
Whilst resource recovery options for Council may be limited in Alice Springs due to the distance to processing
facilities and markets and limited number of tyres disposed of, Council shall continue to investigate measures to
facilitate resource recovery of the tyres which will result in beneficial reuse or recovery of salvageable resources.
If no option other than landfill disposal remains for whole of tyre fractions, tyres shall only be disposed of if
appropriately shredded.
14.4
Receiving Used Tyres
The landfill Operator will record the weight, number and type of tyres at the weighbridge. The gate attendant shall
also conduct checks of possible or suspected non-conforming loads where tyres may be present but where not
declared. Loads not conforming with Section 14.2 will be refused.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
61
Customers to the landfill will be directed to a drop-off area for temporary storage, this storage must follow
appropriate measures as outlined below.
14.5
Temporary Storage of Used Tyres
Tyres must be stored in a manner to allow adequate separation between site boundaries, buildings and tyre
storages. Piles must be limited in size and allow adequate access in-between to allow for fire-fighting if necessary.
A level site should be chosen, away from water courses and inhabited buildings.
Storages should be six metres from the site’s boundaries, but can be limited to the three metres if the boundary is
next to a public road and 12 m from any structures. Storage heights shall not exceed three metres. Storage aisles
between piles must be well maintained and be a minimum width of 1.5 times the tyre height. The maximum length
of the pile will be 20 meters and a maximum width of two times the tyre height. Long and narrow tyre piles are
preferred over square piles in order to assist fire-fighting in the event that it is necessary.
Tyres should be punctured to prevent the breeding of mosquitoes.
Other combustible materials should be stored in a separate area to prevent the possible further spread of fire.
Safety precautions should also prevent potential ignitions sources in the area where tyres are stored. This may
include welding and grinding, faulty electrical or mechanical equipment. No storage of flammable materials should
occur within 30 metres of a tyre storage.
14.6
Disposal of Used Tyres
The Operator must only dispose of shredded tyres in the landfill. Shredded tyre pieces shall not exceed 350 mm in
length, width or height. However, the rings that remain after removal of the base of the tread and the sidewall and
which exceed this size, are acceptable for burial. Whole tyres will not be allowed to be disposed of in the landfill.
Where ever possible, tyres should be stored for collection by external contractors who specialise in the resource
recovery/recycling of used tyres. Where practical, tyres shall be stripped for any recycling potential and shredded.
This may require that tyres are stored until a sufficient quantity has been accumulated. If that is the case, the tyres
must be stored appropriately as described in the section above.
If necessary it is appropriate to take back shredded tyre carcasses for disposal within the landfill.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
62
Table 14-1
Procedures for Tyre Management
REASONS FOR CONTROL
Prevention of fire-hazards of tyre storage and extend the longevity of landfill
Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
Item
Comment/Action
Conformance Criteria No off-site impacts
No adverse on-site impacts, including environmental nuisance
Appropriate tyre storage and burial procedures
Gatehouse
Zero acceptance of mining vehicle tyres.
Acceptance
Landfilling of shredded tyres only
Procedures
Commercial quantities not to be accepted
Tyre Storage
Tyres stored until a sufficient quantity has been accumulated prior to removal must be
Procedures
done so in accordance with General Guidelines for the Outdoors Storage of Used Tyres
by the South Australia Fire Services and must have adequate separation between site
boundaries, buildings and tyre storages. Piles must allow for fire-fighting access if
necessary.
A level site should be chosen, away from water courses and inhabitated buildings.
Long and narrow tyre piles are preferred over square piles, and storages must be:
Disposal Procedures
Recording and
Reporting
Non Conformance
Procedures
Management Review
•
6 metres from the site’s boundaries (3m if the boundary adjoins a public road)
and 12 m from and structures
•
No higher than 3 metres
•
Aisles of minimum width of 1.5 times the tyre height and well maintained
•
Maximum length of the pile will be 20 metres, and
• Maximum width of 2 times the tyre height
Tyres should be punctured to prevent the breeding of mosquitoes
Prevent potential ignitions sources in the area
No storage of flammable materials should occur within 30 metres of a tyre storage.
Where practical, tyres should be stripped for any recycling potential
If to be disposed of by burial, tyres must be buried in shredded form
Shredded tyre pieces shall not exceed 350 mm in length, width or height
Residual rings remaining after removing the base and sidewall are acceptable for burial
Waste registered at weighbridge with details weight, number and type of tyres
Weekly Inspections of the tyre storage area
Total volumes included in Annual Operations and Monitoring Reporting
Investigate causes of non-conforming waste
Check adequacy of procedures
Implement corrective actions and modify procedures
Quarterly review and comment
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
63
15 Emergency Issues
15.1
Emergency Response Plan
The facilities on this site have the potential to cause impacts to the environment. This LEMP describes measures
for operating and managing the site in a manner that will minimise these potential impacts. As a further
environmental protection measure, this section sets out an Emergency Response Plan, addressing the issues of:
•
unauthorised deposition of hazardous substances;
•
fuel storage leakage;
•
flooding;
•
surface water contamination;
•
groundwater contamination;
•
LFG issues;
•
earthquake;
•
uncontrolled discharge of leachate; and
•
fire.
The initial emergency response procedures and responsibilities have been assigned for potential emergency
events at the site as summarised in this section.
15.1.1
Emergency Response Training
The Operator must ensure that all relevant personnel and subcontractors have received training in the
implementation of the emergency response plan and appropriate use of emergency spill kits. The Operator shall
develop and maintain a training register which demonstrates training has been undertaken and shall provide the
documentation on request to Council or an NRETAS Authorised Officer.
15.1.2
Unauthorised Deposition of Hazardous Substances
If a hazardous substance is detected outside the hazardous waste storage facility or at the tip-face, immediate
steps will be taken to isolate the substance, and to cordon off the area. Bunding and clean cover material will be
applied as necessary. Steps will be taken to remove the hazardous substance from the site or store if appropriate
in the hazardous waste facility, and arrangements will be made for its safe transport and disposal at appropriate
facilities.
15.1.3
Hazardous Liquid Storage Leakage
If a hazardous liquid such as a fuel leakage is detected or a spill occurs at the site immediate measures will be
implemented to ensure leakage is contained to the bunded area in which it is situated.
If the leakage or spill is not contained to bunded area the Operator shall adopt spill management practices
including spill equipment and containment devices in accordance with, but not limited to the following:
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
64
15.1.4
•
National Code of Practice for the Storage and Handling of Workplace Dangerous Goods
[NOHSC:2047(2001)]
•
NOHSC2007 National Code of Practice for the Control of Workplace Hazardous Substances
[NOHSC:2007(1994)]
Flooding
External surface water will be diverted around the facility using mounds and swales etc. Due to the siting of the
facility with respect to the Todd River floodplain, floodwater is unlikely to enter the site.
Whilst operational surface water runoff will be directed via a drainage system to a surface water detention area.
15.1.5
Groundwater Contamination
In the event of groundwater contamination which exceeds the relevant groundwater monitoring criteria NRETAS
will be informed.
15.1.6
Landfill Gas
Appropriate emergency response procedures will need to be implemented, if the existing LFG management plan
(Section 9) is considered unsatisfactory as evidenced by dangerous or unacceptable accumulation of methane or
carbon dioxide.
15.1.7
Earthquake
The site is monitored for impacts on groundwater quality, surface water quality and air quality. Should an
earthquake occur the earliest possible reconnaissance of the site will be undertaken to determine any apparent
damage, and possible impact to these monitored parameters. Should any damage or impact be apparent, relevant
actions as outlined in this section will be implemented.
15.1.8
Explosion
Should an explosion occur the earliest possible reconnaissance of the site will be undertaken to determine any
personal injury and/or apparent damage. Should any personal injury arise, the site OH&S emergency procedures
should be implemented immediately as further noted in Section 15.3. Should any damage or impact be apparent,
relevant actions as outlined in Table 15-1 will be implemented.
15.1.9
Fire Prevention
To ensure effective fire prevention and control, the Licensee will adhere to procedures set out in Table 15-2. Fire
fighting procedures and prevention are discussed further in Section 15.2.
15.1.10 Summary
Table 15-1 presents a summary of the Emergency Response Plan to:
•
identify potential risks;
•
state who should be notified in an emergency;
•
describe short term incident management strategies; and
•
outline long term response measures as required.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
65
Table 15-1
Emergency Response Schedule
Incident
Unauthorised deposition
of hazardous substances
Comments/Action
Contain waste
Notify Council
Remove to approved disposal point
Time Frame
Responsibility
Immediately
Operator
Operator
Contain fuel
Fuel storage leakage
Notify Council
Immediately
Direct contaminated stormwater to surface
water detention area
Notify Council
Immediately
Flooding
Notify NRETAS
Groundwater
Contamination
Assess extent and a design remediation
strategy, submit to NRETAS for approval
Evacuate personnel
LFG Identified
Notify Council
Immediately
Investigate occurrence
Implement emergency extraction/venting
Notify NRETAS
Immediately
Explosion
Fire
15.2
Licensee
Operator
Licensee
Notify Council
Within 24 hours of
detection
As soon as damage
detected
Immediately
Conduct repair work
Assess impacts on site and operations
If fire results from explosion refer to Section
15.2
Notify Council
As soon as possible
As soon as
explosion / damage
/ fire detected
Immediately
Licensee
Conduct repair work
As soon as possible
Licensee
Call Alice Springs Fire and Rescue
Refer to Table 15-2
Notify Council
Immediately
Assess impacts on site and operations
Earthquake
Operator
Within 24 hours of
incident
Within 24 hours of
detection
As soon as possible
Operator
Operator
Operator
Immediately
Fire Prevention
To ensure compliance with Environment Protection Licence Conditions and general safety, with regard to effective
fire prevention and control, the Operator will adhere to procedures set out in 15-2 below.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
66
Table 15-2
Procedures for Fire Fighting and Prevention
REASONS FOR CONTROL
• Emission of dangerous fumes from the combustion of a range off waste material contained within a landfill
• Potential for waste disposal and associated activities to pose major bush fire hazard
• Avoid damage to any infrastructure by fire
• Ensure general compliance with:
−
Environment Protection Licence conditions
−
Guidelines for the Siting, Design and Management of Solid Waste Disposal Sites in the Northern Territory
(2003).
−
General Environmental Duty (Waste Management and Pollution Control Act 1998)
−
General Guidelines for the Outdoors Storage of Used Tyres (South Australia Fire Service)
Item
Comment/Action
Responsibility
Conformance Criteria No deliberate burning on-site;
Operator
Ensure adequate fire fighting plans and equipment for all of site
including greenwaste processing area
Staff to respond to spot fire outbreaks only at any part of the facility;
Only NT Fire & Rescue Service to be called to contain any fire at the
landfill, hazardous waste facility or greenwaste processing area
Encourage NT Fire & Rescue Service to undertake annual site
inspection of full site and document fire prevention report findings;
Ensure Emergency Response Plan procedures adhered to
Water Supply and
Ensure mobile water tanker with suitable capacity is available at all
Operator
Equipment Provisions times;
Fit portable fire extinguisher to each machine working at tipping face;
Ensure all machines used on site are fitted with spark arresters;
Ensure fire fighting equipment available at greenwaste processing
area
Ensure all fire fighting equipment kept in good working order
Fire Breaks and
Maintain fire breaks/access tracks to provide trafficable surface;
Operator
Vegetation Clearance Clear vegetation off fire breaks;
Keep all vegetation slashed and mown, except shrubs and trees
used for landscaping
15.3
Evacuation Plan or Procedures
The Operator will be responsible for developing their own site Emergency Evacuation Plan and procedures for
responding to emergency situations such as explosion, fire or other threats in accordance with Workplace Health
and Safety Regulations, Regulation 47. The Plan should consider as a minimum:
•
Potential site specific hazards that may cause and emergency;
•
Define procedures to deal with the identified potential emergencies considering site specific issues such
as staffing, type, size and occupancy of site, buildings and infrastructure;
•
Develop an evacuation plan identifying egress pathways and assembly areas;
•
Define roles and responsibilities and training in emergency response procedures; and
•
Undertake trial evacuations.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
67
16 Closure and Post Closure Management
16.1
Preamble
The Licensee will progressively cap the site to the maximum extent practical, as and when finished levels are
achieved, to provide a separation barrier system between waste and the surrounding environment.
The capping system will be designed to provide protection to humans and the environment and satisfy the
objectives and required outcomes of waste facility capping systems in accordance with landfill closure best
practice.
The following sections detail the closure measures to be implemented to ensure full and sustained closure of
disposal cells and satisfying the objectives and required outcomes of the Guidelines.
Detailed design of the adopted capping system resulting in Specifications and Drawings will be developed to detail
the requirements for the selection and placement of the materials within the final capping system.
16.2
16.2.1
Capping Design, Materials and Construction
Phytocap Cover System
A Phytocap is also known as an evapo-transpirative (ET) cap or store-and-release cap. Phytocaps are developed
to cover closed landfill sites in arid regions and take advantage of reduced rainfall, enhanced evaporation and
evapo-transpiration and complimentary soils with a capacity to retain moisture rather than promoting infiltration.
A Phytocap cover, in its simplest form is a soil cover that is vegetated with native plant species of local provenance
and has a sufficiently deep soil profile, so that infiltrated water is stored until removal by evaporative losses from
the soil surface and by plant roots at depth in the profile. The effectiveness in storing water depends on the
hydraulic properties of the soil layers. It can be shown that water storage in soils, such as silt loam, can be
increased by strategic placement of a coarse soil at depth in the profile. These alternative cover systems work best
in semi-arid or arid environments, where high ET rates and low precipitation make possible the removal of all the
infiltrated water by ET.
The layer profile and depth of the cap is determined by water balance modelling using recognised water balance
modelling software. Soil samples are retrieved from locally available or earmarked soils proposed for use in the
cover system tested in the laboratory for the parameters required by the modelling software. Local climate data is
also entered into the model.
16.2.2
Phytocap Construction
Construction of the Phytocap cover system shall be in accordance with the Specification and Drawings developed
during the system design phase.
16.3
Surface Water Management
The implementation of surface water management elements, as summarised below shall facilitate the following:
•
control and manage on-site surface water runoff to prevent erosion and scour;
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
68
•
control off-site discharges and prevent excessive discharge of sediment off site;
•
prevent ponding and infiltration;
•
maintain site access and mobility; and
•
minimise the potential for adverse impact to the environment, including offsite local waterways and
groundwater, due to the transport of sediment (erosion) and/or contaminants by stormwater runoff from
the site.
Monitoring plans shall assist in maintaining the integrity of the capping system where completed and enable the
effectiveness of surface water management and cover performance.
External surface water management measures as indicated in Figure 5 shall remain in place following capping of
the site. The capping final landform shall incorporate surface water drainage elements such as contour swales and
cut off drains designed to minimise the potential for scour and erosion of the capping surface soils and waste
exposure.
Runoff from the site will be directed via vegetated surface contour drains to established sedimentation basins. This
will facilitate discharge of clean surface water runoff offsite under controlled conditions. Once the revegetation is
established on the former disposal areas, sediment loads in the stormwater should reach background levels,
however the established drainage system shall remain in place to continue to control surface water discharge from
the site.
16.4
LFG Management
Design of the adopted capping system will incorporate measures to control and manage LFG to prevent offsite
migration of LFG, limit accumulation of LFG within the waste and below the capping system and prevent
uncontrolled emissions to the atmosphere.
16.5
Revegetation
Revegetation shall be undertaken as soon as practical following completion of capping profile construction and
create an easily maintained landscape that blends with the surrounding areas.
The capped areas as discussed in Section 10 are proposed to be revegetated with grasses and shallow rooting
shrubs as the final landuse reverts back to pre development use.
16.6
Cap Specification and Drawings
Detailed design of the adopted capping system resulting in Specifications and Drawings will be developed to detail
the requirements for the selection and placement of the materials within the final capping system.
16.7
Final Landform, Visual Amenity and Future Use
The final landform will reflect the existing undulating landscape and shall therefore blend into the surrounding
environment. The capping layer will be constructed to achieve the final landform as shown by the contours on
Figure 7 with the proposed drainage and erosion controls included. When constructed the final cover layer will be
constructed to achieve the final landform with surface slopes generally between 3% and 25% and with appropriate
runoff drainage and erosion controls.
The visual amenity value of the site post closure will be maximised by appropriate landscaping works including the
timely establishment of screening vegetation having regard for the adopted end use.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
69
The proposed end use of the site is a returning of the land to its original use i.e. passive landscape.
The site will continue to be utilised for waste management such as a waste sorting and transfer station.
16.8
Reporting
An “as-constructed” report may be prepared following each future campaign of cap construction. The “asconstructed” report should include as a minimum:
16.9
•
Material classification and placement compliance test results;
•
Survey information including subgrade/interim cover and top of topsoil to confirm thickness and grades;
•
Photographic record of the full construction process; and
•
Comment on construction in accordance with the approved Specification, Drawings, Development
Approvals and Licence (as required).
Final Capping Progress
Landfilling, and subsequently the capping is proposed to be constructed progressively as shown in Figure 6 as
areas where waste filling has reached its maximum extent (to the underside of the final capping) is reached. The
stage areas shown in Figure 9 may be broken into smaller more manageable regions to be capped.
16.10 Post Closure Management
Monitoring programs have been developed for the operational phase of the facility. Much of the capping works will
be undertaken whilst the facility continues to be operational. These monitoring programs will remain active until
routine monitoring of the sites conditions confirms monitoring may cease due to stabilisation of the waste mass or
a low risk of environmental impact exists.
Monitoring is aimed to ensure that the facility does not adversely impact the surrounding environment and to
provide any early warnings should such impacts possibly occur.
The monitoring plans set out monitoring locations, methodology, responsibility, frequency, duration, and
acceptance criteria to satisfy for the duration of the monitoring period.
Alice Springs Town Council
Alice Springs Landfill Commencement Date: 1 February 2011
20091467RA2RevA.doc
Revision: A
70
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement