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Environmental Management Plan

August 2019

Bookaar Compost Facility EPA Licence 13415

Document Control Information Environmental Management Plan Document Ref: 4-100 Author: Michael Wood Approved by:

Peter Harlock Operations Manager

Nick Routson CEO

Review Period: 24 months Last Reviewed: August 2019

Table of Contents

1 Introduction ............................................................................................................................................ 3

1.1 Background and Context ........................................................................................................................ 3

1.2 Reference Documents .................................................................................................................... 5

1.3 Purpose and Environmental Objectives ........................................................................................... 5

2 Scope and Format ........................................................................................................................................ 6

3 Description of Facility and Processes ............................................................................................................ 7

3.1 Facility Overview .................................................................................................................................... 7

3.2 Site Locality ........................................................................................................................................... 7

3.3 Management and Implementation of EMP ........................................................................................... 10

3.4 Operations Overview ........................................................................................................................... 10

3.4.1 Receipt Process ............................................................................................................................. 10

3.4.2 Feedstock Descriptions ................................................................................................................. 12

3.4.3 Open Windrow Process ................................................................................................................ 13

3.4.4 Screening Process......................................................................................................................... 14

4 Environmental Management Programs .................................................................................................. 15

4.1 Environmental Commitments ....................................................................................................... 15

4.1.1 Format of Environmental Management Plans ................................................................................ 15

5 Leachate and Contact Water Management ............................................................................................ 15

5.1 Scope ................................................................................................................................................... 15

5.1.1 Operational Phase Liquid Management ........................................................................................ 16

5.2 Geology ............................................................................................................................................... 17

5.3 Leachate Control during Normal Operations ......................................................................................... 17

5.4 Best Practice Leachate and Contact Water Management ...................................................................... 17

5.4.1 Process and Procedural Control Controls for Waste Water Management ........................................... 19

5.5 Contact Water Control During Upset Conditions ........................................................................... 22

5.5.1 Overflow ....................................................................................................................................... 22

5.5.2 Water Deficit/Drought .................................................................................................................. 23

5.5.3 Oversupply of Liquid Feedstock or Wet Solid Bulking Agents .......................................................... 23

5.5.4 pH ................................................................................................................................................ 23

5.5.5 O2................................................................................................................................................. 24

5.5.6 Dissolved Chemicals ...................................................................................................................... 24

5.6.7 Liquid Delivery Spill ....................................................................................................................... 24

6 Dust Management ...................................................................................................................................... 25

6.1 Potential Dust Impacts ......................................................................................................................... 25

6.2 Strategies............................................................................................................................................. 27

6.2.1 Statement of Commitments ...................................................................................................... 27

6.3 Corrective Action ................................................................................................................................. 28

7 Odour Management .............................................................................................................................. 29

7.1 Scope ........................................................................................................................................... 29

7.1.1 Operational Phase Odour Management ......................................................................................... 29

7.2 Surrounding Uses and Sensitive Receptors .................................................................................... 30

7.2.1 Surrounding Land Uses .................................................................................................................. 30

7.2.2 Sensitive Receptors ....................................................................................................................... 31

7.3 Potential Off-Site Sources of Odour .............................................................................................. 31

7.4 Optimal Weather Conditions ........................................................................................................ 31

7.4.1 Wind ............................................................................................................................................. 31

7.4.2 Sunshine Exposure ........................................................................................................................ 33

7.4.3 Precipitation ................................................................................................................................. 33

7.5 Identified On-Site Odour Sources .................................................................................................. 33

7.6 Odour Control during Normal Operations ............................................................................................. 37

7.6.1 Odour Control Strategies ............................................................................................................... 37

7.6.2 Waste Acceptance ......................................................................................................................... 37

7.6.3 Unloading of Wastes ..................................................................................................................... 38

7.6.5 Force Aerated Windrow Composting ............................................................................................. 39

7.7 Odour Control during Upset Conditions ................................................................................................ 40

8 Vegetation Management ............................................................................................................................ 45

8.1 Scope ................................................................................................................................................... 45

8.2 Site and Soil Information ...................................................................................................................... 45

8.3 Climate ................................................................................................................................................ 45

8.4 Weeds ................................................................................................................................................. 46

8.4.1 Weed Threat ................................................................................................................................. 46

8.4.2 Weed Control Options ................................................................................................................... 46

8.4.3 Weed Disposal Procedure ............................................................................................................. 47

9 Pest Management ...................................................................................................................................... 56

9.1 Scope ................................................................................................................................................... 56

9.2 Pests .................................................................................................................................................... 56

9.2.1 The Effects of Pests ....................................................................................................................... 56

9.2.2 Pest Control Measures .................................................................................................................. 57

10 Complaint Handling and Document Control ............................................................................................. 59

10.1 Complaint Management and Document Control ................................................................................ 59

10.1.1 Roles and Responsibilities ............................................................................................................ 59

10.1.2 Complaints Handling Procedure................................................................................................... 59

10.2 Document Control ............................................................................................................................. 60

1 Introduction

1.1 Background and Context

This document is the Environmental Management Plan (EMP) specific to the operation of the current Organics Recycling Facility at Sandys Lane Bookaar Victoria and the upgraded facility to be constructed through 2019-2020. The facility is owned and operated by The Camperdown Compost Company Pty Ltd.

The Camperdown Compost Company is responsible for delivering many services which are concerned with protecting and enhancing the environment. The Camperdown Compost Company always endeavours to minimize negative effects and maximize positive effects on the environment and to work towards achieving sustainable development and continual improvement. The environment is at the centre of all of our operations and as such, Camperdown Compost Company is committed to:

• Minimizing environmental impacts in all of its activities,

• Building environmental concerns into all of its policies, programs and services,

• Integrating key environmental information into all levels of its management structure,

• Achieving continuing improvements in environmental performance over and above

regulatory and legislative requirements, and

• Working in partnership with other organizations to promote the health of the environment

particularly in agriculture, horticulture and local waste management.

• Promoting the conservation and sustainable use of natural resources,

In order to achieve this, Camperdown Compost Company pledges to:

• Set environmental objectives and targets in carrying out all of its activities and monitoring its

performance against those objectives and targets,

• Adopt working practices that minimize negative effects and maximize positive effects on the

environment,

• Train and educate of its staff in respect of its environmental policies and objectives, and

• Strive to continually improve its performance in regard to environmental issues.

This document details the potential environmental impacts of Camperdown Compost Company’s composting facilities and the ways in which these impacts may be reduced through management strategies and site practices. The Environmental Management Plan:

• Provides clear direction on the selection and implementation of appropriate environmental

controls and monitoring techniques during the operational life of the current facility,

transition during construction and the operation of the new technology facility.

• Uses the principles of Camperdown Compost Company’s environmental policies to provide

the basis of operational procedures used to implement the control and management of

environmental impacts.

• Reflects the requirements of licence and approval conditions as well as Camperdown Compost

Company’s commitments to high standard environmental performance.

In order to ensure that the facility operates with the least environmental impact, the EMP addresses a wide range of issues including:

• Feedstock and Waste Acceptance management;

• Dust management;

• Odour management;

• Water, leachate & contact water management;

• Hazardous materials management;

• Finished Product management; and

• Vegetation management.

This Environmental Management Plan should be held in a location or locations to which all levels of

staff have access.

The purpose of the facility is manufacture high quality compost for use in support of the region’s

agricultural and horticultural industries and provide waste processing services to the regional food

processing industries supported by those primary industries and regional municipal organic recycling

programs. The facility can further work to minimise the amount of recyclable and putrescible waste

disposed of to landfill by the implementation of sustainable waste management processes including

sorting, recovery and composting with the best available technology.

Camperdown Compost Company at Bookaar holds an EPA license for the annual receipt and processing of 24,000 tonnes of:

Licensed for Description

Hard green wastes & Municipal green wastes

Hard green wastes & Municipal green wastes

K100 Animal Effluent and residues

K120 Grease interceptor trap effluent

K200 Food & Beverage processing wastes

L100 Car & Truck wash waters

L150 Industrial wash waters

N150 Fly Ash

N190 Filter Cake

T130 Inert sludges or slurries Inc Drilling mud with no free flowing liquid in it.

The feedstock list for the works approval will be extended with the addition of mixed kerbside food and garden organics, commercial food and category C soils.

1.2 Reference Documents

This document has been developed in accordance with all relevant legislation and guidelines. This includes:

• Environmental Protection Act (1970) As amended 2018

• EPA Guidance 1588.1 Design, Construction and Operating Compost Facilities

• EPA Guidance Management and Storage of Combustible Recyclables Waste Materials 2018

• Sustainability Victoria Guide to Biological Recovery of Organics 2018

• Biosecurity Strategy for Victoria (Government of Victoria 2009)

• Invasive Plants and Animals Policy Framework (DPI 2010)

• Catchment and Land Protection Act 1994

1.3 Purpose and Environmental Objectives

The purpose of this EMP is to ensure that appropriate environmental practices are followed during

operation of the current facility, the transition period of the construction schedule and the operation

of the completed upgraded facility.

The environmental objectives of the EMP are to:

• Implement and maintain effective environmental management systems for the all

operations and site activities;

• Document details of environmental protection infrastructure and controls and their

operation so that they function effectively to provide protection for the natural

environment; and

• Ensure compliance with relevant legislation, regulatory requirements and undertakings

given by Camperdown Compost Company.

2 Scope and Format

The format of this EMP is as follows:

• Section 1 provides an introduction to the project background and provides context,

including the range of potential environmental impacts identified during the

environmental assessment process. This section also cross-references licence and

approval conditions with the location within the EMP where the particular conditions

are addressed;

• Section 2 provides a brief description of the facility, including description of the waste

and environmental management practices employed;

• Section 3, 4, 5,6 and 7 (a) list the potential environmental impacts identified during the

assessment and approval processes as requiring Environmental Management

Programmes to be developed and implemented; and (b) provide the specific

Environmental Management Programmes, including monitoring and reporting

requirements.

• Section 8 and 9 outlines the Vegetation and Wildlife Management plans to be

implemented at Camperdown Compost Company.

• Section 10 describes Camperdown Compost Company’s complaint handling procedures

and the document control measures associated with this document.

3 Description of Facility and Processes

3.1 Facility Overview

The facility at Bookaar is a commercial organics recycling facility focused on composting. It processes

a variety of organic wastes over a 12-20 week period, converting these wastes into fully matured soil

ameliorant compliant with the Australian Standard AS4454. The facility currently employs open

windrow technology using large windrows to minimise the surface area to volume ratio of the emitting

surfaces and aeration by excavator agitation and turning methods. The upgraded facility will utilise a

force aerated concrete floor with smaller windrows turned with a self-propelled turner and a

hardstand pad for final pasteurisation assurance and maturation. It will also feature an upgraded

liquids receipt and handling system.

The finished product is a well-balanced, nutritious and microbiologically rich, stable compost of

maximum benefit to agricultural soils.

3.2 Site Locality

The site is located at 445 Sandy’s Lane Bookaar, Camperdown Compost Company’s operational facility is 9 Kms from the centre of Camperdown township and approximately 8 Kms from outlying residential areas

The locality of the site can be seen in Figure 1.

Figure 1: Site Locality

An aerial of the activity area is given in Figure 2.

Figure 2: Current Activity Area Aerial

Figure 3: Upgraded Activity Area Schematic

3.3 Management and Implementation of EMP

Protecting the environment and minimising Camperdown Compost Company’s impacts on the

environment is the responsibility of all Camperdown Compost Company staff. All Camperdown

Compost Company staff are required to have read the Environmental Management Plan and be aware

of their collective and individual responsibilities as defined by the plan. Where responsibilities pertain

specifically to one individual such as the Site Manager, this is explicitly stated in the document.

It is the responsibility of the Operations Manager at Camperdown Compost Company to take all

practicable measures to minimise its impact on the environment. The Operations Manager must

ensure all staff are aware of their environmental obligations. In the event that staff have any concerns,

questions or suggestions regarding Camperdown Compost Company’s environmental impacts, these

should be directed to the Operations Manager for consideration and amendment of the EMP if

required.

3.4 Operations Overview

3.4.1 Receipt Process

Camperdown Compost Company uses two distinct means of receipt at its facility. These processes

are designed to manage the risks associated with odour, contamination, biohazards and spillages.

These methods are:

• Receipt pad for solids

• Liquid receipt bund or pit for sludge and liquids

Solid Receipts

Feedstocks which have an associated contamination risk, primarily garden organics must be processed

on the receipt pad. The material is manually decontaminated by Camperdown Compost Company

pickers. Decontamination is important as it reduces the levels of litter in the final product to eventually

be sold and spread on land. Decontamination must be done effectively as once formed into windrows,

the contamination will travel through the whole process increasing the risk of litter on site and reach

finished products.

Pickers must wear all required PPE during the decontamination process including;

• Camperdown Compost Company-approved gloves;

• Hat;

• Protective glasses;

• Long sleeve top;

• 50+ Sunscreen; and

• Steel-cap boots.

All recyclable material extracted from garden organics deliveries is as far as locally practicable sent for

recycling in accordance with Camperdown Compost Company’s Sustainability Policy. Materials

deemed to be sufficiently clean and suitable for recycling by Camperdown Compost Company are as

follows:

• Glass;

• Aluminium;

• Recyclable Plastics; and

• Metals.

These materials are to be categorised into collection skips and sent to the nearest relevant recycling

facility. All non-recyclable materials material will be sent to the EPA-licenced Corangamite Regional

Landfill facility operated by Corangamite Shire at County Boundary Road West Naroghid. By

arrangement the local landfill is receiving oversize material for immediate beneficial reuse in landfill

operations and long term static windrowing where after it will be screened to recover clean fines to

minimize the contaminated oversize actually landfilled.

Hazardous materials which may be present in deliveries include:

• Asbestos;

• Syringes; and

• Biomedical wastes (faecal samples, sanitary materials etc.)

Any hazardous materials found in deliveries must be immediately reported to the Site Manager and

documented on a contaminated load form matched to the delivery’s corresponding weighbridge

docket. Hazardous materials found in deliveries must be handled in accordance with Camperdown

Compost Company’s Contaminants Procedure 4-305.

Camperdown Compost Company staff are required to wear approved gloves at all stages of the

decontamination process but any on-skin contact with hazardous materials must be reported to the

Site Manager immediately and documented on Camperdown Compost Company’s Injury and Incident

Report Procedure Report Form

Liquid Receipts

Liquids are currently received in a concrete receipts pit where they pumped out for absorption into

large windrows. Solid residue is blended with garden based organic solids and formed into windrows.

The upgraded liquid receipt system will feature immediate processing through a stainless steel star

screen de-watering unit where solids will be removed from the liquid receipts. The processed water

will be stored in an irrigation tank ready for application to the windrows. Solids from the de-watering

process will be blended with garden organics as will the residue from the liquid receipts pit.

Input waste waters and sludges are prescribed industrial wastes as listed below by waste codes. The precise receipt inputs are currently reasonably stable based on commercial need but vary seasonally and periodically based on demand or environmental need. For example the usual expected composition of receipts can be altered by a scheduled maintenance and cleaning event at a client waste producer, unscheduled breakdown or environmental issue requiring immediate disposal of PIW waters. Details of the sources of PIW waste waters are listed in the waste water section. The rates of inclusion of liquid wastes will be roughly half of all receipts counting liquids as whole tonnes.

Liquid wastes will be received in a dedicated concrete trough and mixing pit placed below the driveway where multiple trucks can simultaneously discharge. The receipts will be immediately de-watered by pumping the contents of the liquid receipts pit through a de-watering screen and the solids separated into a pit for blending. The solid residue of this process collected in the liquid receipts pit will be mixed with garden and food based solid organic bulking agents for formation into windrows. The solids from the de-watering process captured in the pit will be dug out and mixed with solid chipped municipal garden or food and garden organics ready for windrow formation. The separated processed liquid will be held in short term storage and be pumped onto the biological drying pad daily. Some liquids that contain only suspended solids that will not benefit from passing the de-watering screen may be received direct into the irrigation storage tank where appropriately assessed and pre-approved. The processed de-watered liquid storage irrigation tank will have a capacity of 225,000 litres, sufficient to manage a significant contingency over average daily receipts of 107,000 litres. In contingency situations where water cannot be pumped for application to the windrows, the irrigation storage tank will have controlled overflow capacity to the contact water dam. Upgraded Liquid Receipts Area

3.4.2 Feedstock Descriptions

3.4.2.1 Garden and Mixed Kerbside Garden & Food Organics (Solid) Garden organics includes some or all of the following: grass clippings, leaves, branches, twigs, foliage

cuttings, hedge trimmings etc. and in the case of FOGO also include domestic food wastes such as

peelings, rinds and left overs. These materials will come from both transfer station garden services

and kerbside bins (both garden organics and mixed green and food kerbside collections) and will form

the one of the base feedstocks to which all other feedstock types are combined in various proportions.

Garden organics which are received in the form of kerbside collections are likely to contain a degree

of contamination and for this reason will be carefully decontaminated upon arrival.

3.4.2.2 Commercial Food

Solid commercial food varies considerably depending on the source, ranging from vegetable offcut material to post consumer restaurant wastes. Commercial food selected for processing in the upgraded facility will be subject to careful risk assessment scrutiny under environmental operating procedure 4-330 Pre Receipt Feedstock Assessment & Approval.

3.4.2.3 Prescribed Industrial Waste Prescribed liquid waste treatment is in high demand in the region and Camperdown Compost

Company serves key local dairy processors, food processing and general regional liquid waste

treatment needs. These categories are also often taken as sludge. Contaminated soils are included in

the upgrade feedstock application and will be blended as a solid on the receipt pad. The range of

feedstocks and waste codes are listed below.

Table 1: Feedstocks

Feedstocks

Organic Wastes Municipal green wastes GO & FOGO

(including mixed kerbside food and garden organics)

Commercial Food

Organic PIW

K100 S Animal Effluent and residues

K100 L Animal Effluent and residues

K120 L Grease interceptor trap effluent

K200 L Food and Beverage processing wastes

L100 L Car & Truck wash waters

L150 L Industrial wash waters

T130 P Inert sludges or slurries

N121 S Category C soils

3.4.3 Open Windrow Process

Currently, liquids are pumped or blended into garden organics based bulking agents and formed into

large windrows to minimise surface area to volume ratio to reduce odorous emissions. Smaller

windrows trialled under the section 30 A with a self-propelled turner have proved to more odorous

than the traditional large windrows employed on site. These large windrows are carefully aerated by

excavators cracking fissures into the sides of the windrows to allow aeration and to form a pseudo-

biofilter layer on the large windrows as they convect and evaporate high moisture contents. This has

proved from experience to minimise odorous emissions, especially during periods where liquid receipt

volumes have been high due to cleaning or contingent events at key customers operations.

In the upgraded facility, after the de-watering of liquids in the liquid receipts area, solid material

separated through the de-watering screen will be unloaded from the pad using a front end loader or

excavator and blended with garden organic or FOGO material on the receipts pad. It will then be

formed into a windrow to initiate the composting process and await its schedule to be formed into

windrows on the biological drying pad. Windrows will be formed on the force aerated biological drying

pad and subject to regular turning and application of liquids from the de-watering process for a further

8 weeks. In this time they will be monitored for temperature driving a SCADA system activating the

force aeration on demand. Further manual testing will be routinely performed to measure oxygen,

carbon dioxide and methane levels. They will then be picked up by loaders and reformed on the

pasteurisation and maturation pad where no further liquids will applied and an AS4454 compliant

pasteurisation sequence will be completed over an 8 week pasteurisation and maturation timeframe.

Force Aeration Parameters

Table 2: Process parameters

Parameter Measured Requirements Action

Temperature >55°c If > 70°c Turn

Oxygen >10% If < 10% Aerate or Turn

Carbon Dioxide <8% If > 8% Aerate or Turn

Methane <1% If > 1% Aerate or Turn

Moisture 40-60% Irrigate to 60% Optimum

3.4.4 Screening Process

After 16 weeks on the compost pad, the compost will be screened. This involves the scooping of the

product with the loader and putting it through the power screen, which will sort the material according

to particle size.

4 Environmental Management Programs

4.1 Environmental Commitments

Camperdown Compost Company’s assessment strategy involved the identification of all

environmental issues associated with the current operation and future development and upgrade of

the Bookaar facility. A complete review of the Licence Compliance & Monitoring Plan was conducted

through early 2019 leading to a re-write of environmental and operational procedures used in the

operation of the facility. The review further fed into considerations for the design and proposed

methods and operations of the upgraded facility and Works Approval application.

Some of the issues are able to be dealt with through simple administrative actions, while others

require a more comprehensive and specification of future operational and monitoring actions.

4.1.1 Format of Environmental Management Plans

Most of the EMPs follow a set format with sub-headings as follows:

• Potential impacts;

• Operational objective/s;

• Performance criteria;

• Management strategy;

• Baseline data;

• Monitoring;

• Reporting; and

• Corrective action.

5 Leachate and Contact Water Management

5.1 Scope

This section aims to adequately address the following:

• An assessment of the risks of leachate and water problems, from normal and abnormal

situations;

• Worst case scenarios, for example of weather, temperature, or breakdowns;

• Accident scenarios;

• The appropriate controls (both physical and management) needed to manage those risks;

• Suitable monitoring;

• Actions, contingencies and responsibilities when problems arise; and

• Regular review of the effectiveness of Camperdown Compost Company’s leachate and water

control measures.

5.1.1 Operational Phase Liquid Management

Several forms of liquid are involved in the Camperdown Compost Company process. These are:

• Stored rain water;

• Dam water;

• Leachate and Contact water;

• Liquid feedstocks.

These liquids vary in their potential for environmental hazard and thus must be handled in

accordance with the procedures set out in this document. These liquids and their associated risk

levels are detailed in the table below:

Table 3: Liquids and Risk Factors

Liquid Risk Factors Risk Level

Leachate & Contact Water

• High concentration dissolved chemicals (potential for groundwater/soil contamination)

• Odour

Medium

Contact dam water • Relatively high concentration dissolved chemicals

(potential for groundwater/soil contamination)

• Odour

Medium

Liquid Feedstocks • Odour

• Biosecurity High

Dam water

• Flood Low

Table 4: Dam Information

Dam Number Common Name Volume Contents

1 Contact Water &

Settling Dam 7.013 ML

Leachate and contact water run off from force aerated

and hardstand windrow pads.

3 Process Water Tank 0.25 ML Water from PIW Liquids de-

watering process

4 Contact Water Sump 0.116 ML

Water from hardstand windrows. Returned to Contact Water Dam by

pump

Total Dam Capacity 7.37 ML

The contact water run-off from the force aerated & maturation pad is collected in drains under the

force aerated pad and surrounding the hardstand which drain to dam 1. For this reason, it is

important to monitor this dam, ensuring the addition of contact water does not cause it to become

odorous. The contact water dam monitoring plan is given in Table 5.

5.2 Geology

The geology of this site itself has been assessed as being effective in minimising intrusion of

groundwater. The site lies on a clay pad, which has a very low permeability, working to ensure a

separation between groundwater and the leachate on the surface. The geology of the region is defined

by State of Victoria (Agriculture Victoria) soil_landform_units147 updated 31/01/2019 as neogene

fluvial and marine sediments and quaternary scoria deposits with parent material being aeolian

deposits and alluvium; clays and silts and soils as neutral and alkaline black cracking clays which are

strongly structured but expansive clay soils, with moderate to rapid site drainage. High nutrient

capacity, calcareous and sodic, particularly at depth.

5.3 Leachate Control during Normal Operations

The application of good working practices, process control and monitoring is of fundamental

importance in eliminating and minimising the likelihood of liquid mismanagement. This approach is

preferred as it is difficult to rectify liquid mismanagement events such as flood and overflow once it is

occuring.

The overall aim in the operation of the facility is to apply Best Practice at all stages of the waste

treatment processes undertaken on site. Given that leachate is one of the higher risks, the facility is

and will be operated and managed in accordance with the accepted hierarchy of preferred controls,

that is:

1. prevent the generation of excess leachate and contact water;

2. where this is not practicable, control the release of excess leachate and contact water;

3. abate, ameliorate and manage any effects of excessive generation;

5.4 Best Practice Leachate and Contact Water Management

The best practice controls to be employed at Camperdown Compost Company are listed in Table 5.

The Risk Level referred to in the table refers to the potential for environmental impact (odour,

groundwater contamination etc. which could result from the mismanagement of liquids).

Water System Schematic

Camperdown Compost Company Pty Ltd Environmental Management Plan Page 18 of 56

Table 5: Process Controls

Process Stage Aspect Risks Risk Level Control Measures

Feedstock Receipt

Solid waste acceptance • Saturated material Low • Concrete receipts and blending pad

Liquid Waste Acceptance

• Spill

• Soil contamination

• Groundwater contamination

• Odour

Medium

• Sealed concrete liquid acceptance pits, enclosures and tanks

• De-watering process for PIW’s

• Immediate processing

• Daily blending of separated solids

• Periodic High pressure cleaning

Feedstock processing Decontamination, LAP loading

• Saturated material

• Odorous receipts Medium

• De-watering process for PIW’s

• Immediate processing

• Daily blending of separated solids & Residues

Leachate and Contact Dam Management

Monitoring of leachate and contact dam levels and conditions

• Anaerobic conditions in the dam causing odour

Medium • See Table 7

Force Aerated Open Windrow processing

Collection of leachate and contact water from windrows

• Pooling of leachate and contact water

• Contamination of soil/groundwater

• Odour

Medium

• Closed water drainage and dam system

• Concrete force aerated floor with underground drainage

• Gradient of concrete and hardstands to drain

• Force aeration and regular turning of windrows

• Large site liquid storage capacity

• Continuous monitoring of windrow temperature to ensure optimal aeration and moisture control

• Site selection (impermeable clay)

Screening and Batching

Screening of finished product • Excessive moisture and

leachate Low

• Hardstand

• Testing of product moisture levels prior to screening


5.4.1 Process and Procedural Control Controls for Waste Water Management

Liquid Receipts

All receipts take place on either the concrete enclosure of the Liquid Acceptance Pit, or onto the

hardstand receipts area to protect groundwater and soil beneath. All liquid deliveries must be received

into the LAP. A random test monitoring regime will apply to risk assessed clients where analysis is not

regularly provided to ensure the suitability and safety of waste waters for composting. The whole area

can be pressure washed and contained to minimise odour from residue build ups.

As prescribed wastes, liquids will be accepted under EPA Trade Waste Certificates which will be

completed and filed appropriately for each delivery.

Solid Receipts

All solid wastes are to be delivered via the concrete Receipt Pad. Leachate and contact water risk from

solid materials is very low during this process. Mixing and blending of de-watered solids and LAP

residue will occur on the concrete pad which drains back into the liquid acceptance pit for processing.

The whole are can be scraped by the loader using dry garden organic chip to collect liquids and residue

and can also be pressure washed to minimise odour.

Leachate Collection

The windrow pads are built with a greater than 2% slight gradient to facilitate drainage to the

collection drain which runs along the rear base of pads.

Contact & Irrigation Dam Management

The contact water dam (total volume 7.013 ML) will collect all the leachate and contact water from

the concrete force aerated windrow and hardstand maturation pads. The contact water dam is the

most highly used and cycled water on the site, as contact water will drain to this dam. Following

settling in the Contact Water Dam, overflow will pumped to the Irrigation Dam containing a mix of

settled contact water and the fresh water captured on site. The two dam process will provide the

cleanest water available for application to the windrows. Water will be pumped out of the Irrigation

Dam as required for composting in conjunction with P.I.W. waters processed through the solids

removal of de-watering direct from the Irrigation Tank. Changes in the Contact Water Dam chemistry

and volume mean that failure to properly manage the dam could result in one or some of the following

upset conditions:

• Anaerobic conditions causing excessive odour;

• Algal blooms;

• Overflow; and

• Water deficit resulting extreme salinity and failure to comply with CFA requirements.

The Contact Water Dam monitoring requirements are outlined in the table below:

Camperdown Compost Company Pty Ltd Environmental Management Plan

Page 20 of 56

Table 6: Contact Water Dam Monitoring Program

Parameter Means of Monitoring Performed by Acceptable

Bounds Monitoring Schedule

Responsible Staff Member

Water Level &

Freeboard Water depth gauge Site Supervisor 600mm Weekly

Operations Manager

pH pH probe Site Supervisor 4-9 Monthly Operations Manager

O2 Oxygen probe Site Supervisor > 3 mg/L Monthly Operations Manager

EC E.C. meter Site Supervisor < 8 Monthly Operations Manager

Dissolved chemicals

Sample sent to NATA accredited laboratory

External Environmental

Consultancy

Various in accordance

with EPA guidelines

Annually

Operations Manager

Solids build up on the bottom of the dam

Lower water and inspect

Site Supervisor 2 metre sludge

layer Annually

Operations Manager

Water levels in the dams on site, including the contact water dam, will fluctuate seasonally, as high

temperatures and strong sunlight significantly increase evaporation levels during the summer months

and windrow water use increases.

During these months, the dam is likely to become more highly saline. A minimum water level in the

dam is required to comply with CFA regulations and allow enough water in close proximity to the

windrows to extinguish any possible fires. Maintaining a minimum water level in the contact water

dam is also required to prevent it becoming too highly saline, which gives rise to more contamination

potential.

During the summer months, if the Contact Water Dam level drops towards the lowest acceptable

parameter from the table, the liquid application program will be reduced to assist hold the volume

stable to replenish the volume with the next rains and diluting the dam water as required

During winter and spring months, when rainfall is at its highest, the Contact Water Dam must be

monitored for flood risk. The overflow of the dam could result in contamination of the surrounding

soil and groundwater. To safeguard against this, if water approaches the upper bound, water should

be pumped for disposal by application to windrows to ensure the freeboard is maintained.

The oxygen level and pH of the dam will also be monitored monthly but odour is assessed on site daily

and if the contact water is odorous, then the oxygen level will be checked. Oxygen is particularly

important, as low oxygen levels in the dam can result in odour from anaerobic conditions. The Contact


Water Dam aeration system will run as required to ensure aerobic conditions. The aerator pump

system responsible for maintenance of dissolved oxygen levels also disturbs the surface, preventing

algal blooms and stagnation.

Every year, a sample must be taken from the Contact Water Dam to be fully tested by a NATA

accredited Laboratory. A monthly pH, electrical conductivity and oxygen test will provide an indication

of the concentration of different solutes in the dam water which can be treated if required. The

samples must be taken from at least 30cm below the surface as surface water chemistry may differ

from the rest of the dam. The results of the monthly dam tests must be forwarded to Camperdown

Compost Company’s Site Manager and Operations Manager and filed appropriately.

Force Aerated Open Windrow Processing

During force aerated open windrow processing additional liquid will be added direct during turning

via attached hoses sourced from the process water tank receiving processed waste waters from the

de-watering unit on a daily basis. This is mixed along with water from the contact water dam. Water

in the contact water dam is received from rainwater runoff and settled. This will ensure lower odour

liquid application at turning by adjusting the blend. Water will be applied to range between 50 to 60%

optimum moisture levels within the windrows. The force aerated airfloor and well drained concrete

will evaporate water to atmosphere.

Reapplication of water processed through this system can return nutrients and provide biological

inoculation into the compost product. The application of this water as well as rain water results

inevitably in a degree of leachate from the windrows. Both compost surfaces are inclined at greater

than 2% to facilitate natural drainage towards the leachate collection drain.

Regular turning of the windrows and application of water through the self-propelled turner is an

essential water management and evaporation strategy. It aerates the piles, disturbs any saturated

materials at the base of the windrow and facilitates evaporation of moisture from within the pile. The

turning requirements of the windrows is dependent on continuously monitored temperature and

regularly monitored oxygen, carbon dioxide, methane and moisture level. Turning will be undertaken

as soon as practicable in working hours whenever parameter monitoring dictates.

The expected turn frequency will be managed to minimise odour and to complement the force

aeration. Windrows will require additional turns and force aeration during wetter months or during

periods of high liquid receipts to facilitate evaporation.

Table 7: Turn Frequency Parameters








Screening

Additional water is not usually applied after the material has been moved from the maturation pad.

Water may be applied as a dust suppressant during windy periods or to reduce the risk of fire during

periods of extreme dry heat. The amount of water added is unlikely to be sufficient to generate

leachate and the product is no longer biologically active at this stage, but the piles will be stored on

the hardstand as a precaution.

5.5 Contact Water Control During Upset Conditions

The force aeration technology to be used provides precise process control but is susceptible to a

number of potential process disturbances. The potential upset conditions that have been identified as

possible for the Camperdown Compost Company facility at Bookaar are identified below and

measures to be taken to control and ameliorate the system in the event of their occurrence outlined.

5.5.1 Overflow

Overflow of the all the dams one of the process upsets which carries the most serious ramifications,

both for the environment and for the facility. Overflow of the dams would mean the transport of the

dissolved chemicals in the water escaping the closed system to the surrounding soil and groundwater.

While all the solutes in the water will be naturally occurring and potentially nutritious for plants,

increasing their concentration beyond natural levels can be toxic to the surroundings. A severe

overflow could result in flood of the windrow maturation pad, resulting in odorous, anaerobic

conditions, though this scenario is extremely unlikely. While the risk of overflow of the dams is a

significant one due to its potential consequence, the likelihood is not high, and this is further

decreased with proper management of the liquids on site.

In the event of dam system overflow, the following steps must be taken for rectification

• The contact water dam must be lowered as far as possible by pumping to windrows for

biological drying and evaporation to create system freeboard

• Water must be immediately pumped from the contact water dam to the windrows for

evaporation to create freeboard capacity in the contact water dam. Water must be pumped

from the dam until the overflow has been controlled or freeboard restored

• Any continent water escape is to be managed so that only the contact water dam overflows

which is least worst option in terms of water quality escaping to the environment.

• Any area flooded will be outlined with physical markers to define the uncontrolled area;

• After the flood water has receded from the flooded area, the soil of the affected area must

be tested in accordance with EPA Publication IWRG702;

• The results must be compared with previous sample results to establish if any unacceptable

contamination has occurred; and


• Contamination must be remedied appropriately (either with treatment of the affected soil or

removal from the site).

5.5.2 Water Deficit/Drought

Water is used at Camperdown Compost Company for the following:

• Maintaining moisture levels in windrows for optimal composting conditions;

• Cleaning machinery;

• Dust suppression (when required).

The consequences of water shortage are more easily rectified than the consequences of overflow,

however the dam must not reach deficient levels (<2.5ML or one third of its capacity) in order for

Camperdown Compost Company to comply with CFA requirements and prevent the soil beneath the

dam from contamination. If the water level in the contact dam reaches deficit levels the following

measures are to be taken to mitigate:

• Pump water from the process water tank at the liquid receipts processing area into the

contact water dam.

• Increase liquid receipts on a short term basis

Camperdown Compost Company will have water holding system capacity to buffer against drought

and the site enjoys regular rainfall. In the event that the water system is low in during extended

periods of drought, Camperdown Compost Company has the option to seek to an increase its liquid

waste volume receipt to compensate.

5.5.3 Oversupply of Liquid Feedstock or Wet Solid Bulking Agents

During winter months, some solid feedstocks will arrive at Camperdown Compost Company with a

higher than average moisture content. Garden organics can be vulnerable to the effects of wet

weather and moisture variation. Wetter feedstock cannot initially absorb as large volumes of liquid

wastes until they are formed up and the thermophilic process initiates. Moisture monitoring of the

windrows would then dictate less water applied at blending and the first turns to maintain aerobic

conditions. The use of constant force aeration is a valuable tool to assist rapid evaporation of surplus

water from the windrows and can be used as a contingency when managing surplus liquids on site. To

reduce moisture levels at initial blending, dry solids such as finished compost or local straw may be

added as required at blending.

In the event Camperdown Compost Company cannot accept any more liquid feedstocks, deliveries

will be diverted to a liquid processing facility.

5.5.4 pH

Monthly testing of the contact water dam pH will flag conditions where pH above 10 or below 4 will

be adjusted with Alum for alkaline conditions and Lime to correct acidity as required.


5.5.5 O2

Dissolved oxygen level in the leachate dam is a critical monitoring parameter particularly for the

management of odour. In the event that oxygen levels become too low, the contact dam aerator will

have its timed operation hours increased.

The aerator pump will be subject to regular services to identify the potential for failures before they

occur. However in the event that the aerator fails a simple petrol or diesel portable pump will be used

to fountain water over the dam to effect aeration before the dam becomes anaerobic.

5.5.6 Dissolved Chemicals

The contact water dam is anticipated to have elevated concentrations of a variety of solutes. In the

event that any of these chemicals reaches an unacceptable concentration (as defined by ± 40%

variation in the average of any one parameter as taken from the mean of the 3 previous months’

measurements) remedial actions will be considered as appropriate to the risk. Dilution with fresh

water is the simplest ameliorant.

Sudden increases in the concentration of a particular solute in the leachate dam must be

communicated to the Site Manager and the cause of the spike should be investigated for risk

assessment and management in future. The main risk is elevated sodium from PIW waters processed

on site which may affect the finished product.

Variation in these concentrations is expected seasonally and is not generally a cause for concern.

Monthly testing is important for proper consideration of formula and product quality and

contamination risks or in the event of spill or flood.

5.6.7 Liquid Delivery Spill

Liquids are only to be unloaded directly into the LAP. For this reason, liquid spills are unlikely and

easily managed. In the event that liquid feedstock is spilled, the spillage can be swept into the LAP

and processed as normal.


6 Dust Management

The generation of dust associated with the operation of the facility has the potential to impact neighbouring residents. This section of the EMP outlines:

• Camperdown Compost Company’s commitment to dust management; and

• Describes the measures to be taken to ensure best practice dust management

6.1 Potential Dust Impacts

Camperdown Compost Company’s Bookaar site is reasonably remote, surrounded by sheep paddocks

in a rural context. Off-site dust impacts are unlikely to be experienced as a result of Camperdown

Compost Company’s operations. However all measures will be taken to ensure dust impacts on-site,

and the potential for those off-site, are minimised. Prolonged exposure to excessive dust can have

adverse health impacts on staff as well as damage machinery. A number of measures will be taken to

manage dust produced at the site and protect staff from dust impacts.

The dust producing aspects of the facility’s operation and the strategies to be taken to minimise these

are given in Table 9.


Page 26 of 56

Table 8: Dust Sources Inventory

Source Location Process Activity and Material

Responsible Risk Control Measures

Waste delivery

Site roads Trucks driving along road Tyres disturbing the road surface

Low

• Roads will be graded and re-surfaced with gravel

• Regular inspection and re-surfacing of road as required

Receipts Pad Waste reception on receipt pad

Incoming loads of source segregated garden organics and FOGO

Low

• Waste enclosed in delivery vehicles

• Most waste types received by direct delivery

• PPE must be worn by decontaminators

Windrow Composting

Compost Pads

Transfer to windrow pads Blended compost Low • Application of water to 60% optimum

starting moisture will suppress dust

Formation of windrows Blended compost Low • Application of water to 60% optimum

starting moisture will suppress dust

Windrow turning Active compost Low

• Application of water during the turning process will suppress dust generated at turning.

• Windrow turner sealed cabin to protect driver

Maturation Active compost Medium

• Water will not be applied at turning on the maturation pad and dust risk may elevate.

• Turning to be avoided in windy conditions.

Refinement

Screening Pad

Screening of product Mature compost High • Screening during low risk dispersion

conditions

Storage Storage of finished product Mature compost Low • Wetting of piles as required

Dispatch Product dispatch Mature compost Medium • None required.


Page 27 of 56

6.2 Strategies

6.2.1 Statement of Commitments

The distance to sensitive receptors provides a reasonable buffer for the management of dust dispersal to minimise amenity impacts to the surrounding neighbourhood.

The following practices and procedures will be adopted to ensure that dust levels are adequately controlled:

• Regular cleaning of the concrete and hardstand working areas

• Dust suppression on unsealed surfaces and work areas using a water cart or alternative;

• Minimising traffic movements on exposed areas;

• Minimising heavy vehicle speed within the site; and

• Dampening of stockpiles;

where necessary;

• Cleaning up materials that might act as dust sources, as soon as possible;

• Conducting regular cleaning maintenance of machinery and vehicles;

• Ensuring any procedures for outdoor activities include a requirement for dust minimisation; and

• Providing awareness training through operations meetings and the daily environmental operations checklist in the importance of minimising dust generation at its source.

• Waste unloading of solids on a concrete receipts pad that has water access to dampen dust and wash the surface when required.

• Prompt clean-up of spills as soon as practicable; and

• Dampening of stockpiles.

• Regular inspections of dust emissions from truck movements will be conducted in the early stages of the facility operation to confirm the conclusions of the dust assessment;

• Maintenance of the surface seal of the internal site haulage/access road;

• Enforcing site speed limits for all vehicles, including trucks on site;

• Provision of an adequate water supply for dust suppression;

6.2.1.1 Monitoring Dust monitoring will be in the form of visual checks carried out throughout the day. These checks will

be undertaken by the Site Supervisor responsible for that area of the operation. All staff are required

to report excessive dust events to the Site Manager should they be observed. Operational procedures

are in place to minimise dust generating activities during high risk winds, namely Procedure 4-214

Wind Direction Monitoring & Activity Scheduling.


6.2.1.2 Reporting All incidents of pollution will be recorded in accordance with Camperdown Compost Company

Procedure 4-303 Complaint Procedure and 4-301 EPA Notification of Breach Procedure and 4-302

Breach of Licence Condition Procedure

6.3 Corrective Action

In the event that the above management strategies are insufficient additional mitigation measures

are to be designed, trialled and implemented.


7 Odour Management

This section of the EMP demonstrates that Camperdown Compost Company, as the operator of the

Bookaar facility, understands and accepts its responsibilities to manage and control odour produced.

Specifically, it should show:

• That Camperdown Compost Company either directly or through its contractors or

subcontractors will ensure that any odour control equipment is designed, operated and

maintained so that it operates effectively to control odour at all times;

• That Camperdown Compost Company is familiar with the characteristics of the process and

equipment on site and has identified the high risk odour emissions stages of its process;

• How Camperdown Compost Company will reduce or cease operations if necessary to avoid

nuisance odour events;

• How Camperdown Compost Company will engage and communicate with the community to

address their concerns; and

• How Camperdown Compost Company will handle and respond to any complaints received.

7.1 Scope

7.1.1 Operational Phase Odour Management

This section aims to adequately address the following:

• An assessment of the risks of odour problems, from normal and abnormal situations;

• Worst case scenarios, for example of weather, temperature, or breakdowns;

• Accident scenarios;

• The appropriate controls (both physical and management) needed to manage odour risks;

• Suitable monitoring;

• Actions, contingencies and responsibilities when problems arise;

• Regular review of the effectiveness of the odour control measures; and

• Emission limits where appropriate.


Table 9: Camperdown Compost Company Feedstocks and Associated Odour Risks

Feedstock Type Overall Risk

Level Factors Affecting Odour Risk

GO & FOGO Medium • Seasonal moisture levels

• Summer FOGO rot risk eg seafood

Commercial food waste Medium • Delivery time

• Temperature

• Source and nature of feedstock

Grease trap wastes Medium • Temperature

• Solids Fraction

K100 High • Temperature

• Source & nature of feedstock

K200 High / Medium • Temperature

• Source and nature of feedstock

Drilling muds Low • Blending rate

7.2 Surrounding Uses and Sensitive Receptors

7.2.1 Surrounding Land Uses

The site is located in a farming zone, and surrounding properties are used for crops and sheep grazing.

Camperdown Compost Company’s operational facility is 9 Kms from the centre of Camperdown and

approximately 8 Kms from outlying residential areas who are highly unlikely to experience any odour

from the Camperdown Compost Company.

The property currently experiences and produces odours consistent with the rural nature of the area

on a day-to-day basis. Camperdown Compost Company has documented its Community Engagement

Plan and will engage directly with neighbouring residents to ensure clear and direct communication

and feedback. Four residents have been identified within a 3Km range of the facility for direct contact,

one of whom has complained in the past. The remainder of potential sensitive receptors are

associated with the land lessor or are relatives of the owners of the Camperdown Compost Company.

The nearest sensitive receptor is a farming property and lies 2.4 Km to the north-west of the site.

Red Circle 2100 m, Yellow Circle 2400 m, Blue Circle 3000 m


7.2.2 Sensitive Receptors

Due to the remote location of the site, there are few sensitive receptors in the region. These receptors are listed in Table 11. Table 10: Odour Sensitive Receptors

Receptor Description Approximate Distance

Sensitivity Direction

R1 1.2 Km Medium (residential, but also an odour producer

itself) SSW

R2 2.4 Km Medium (Residential) E

R3 2.1 Km Low (Residential) ESE


R5 2.7 Km Low (vacant farm cottage) E


R7 3.0 Km Medium (Residential) NE

7.3 Potential Off-Site Sources of Odour

Agricultural odours may be reasonably expected to be present in a region of a predominantly rural

nature

7.4 Optimal Weather Conditions

The meteorological conditions to which the site is subjected on a day-to-day basis assist greatly in the

creation of ideal dispersion conditions. The weather conditions are usually the primary determining

factor in whether odour from an emitting site will sufficiently disperse to allow for the site to be

approved for operations. Given that, Camperdown Compost Company’s site at Bookaar has an

extensive buffer, the meteorological profile of the area plays a secondary but significant role in

ensuring no off-site odour impacts are reported. The three fundamental meteorological factors that

influence the generation of odour are:

• Wind Direction and Speed;

• Sunshine; and

• Precipitation.

7.4.1 Wind

Wind is the primary meteorological factor affecting the intensity of odour experienced off-site in

organics processing. Wind passes over the site and picks up odour particles, carrying and distributing


them along its path. Windier conditions are more favourable for the dispersion of odour while calm

conditions result in odour remaining stagnant and lingering in the immediate vicinity of the source; in

this case, feedstock, and windrows.

For the purposes of this management plan, data from the weather station at Mortlake, Victoria has

been used. Mortlake is the most proximal weather station that has records of wind data, and is located

approximately 33km north east of the Blind Creek Road premises. A directional anemometer is

installed on site to monitor wind for environmental management purposes and logged to computer

for maintenance of site records.

7.4.1.1 Wind Direction The direction from which the wind blows is a significant influence on the ability of the odour of a site

to impinge on surrounding sensitive receptors. In the absence of buildings, wind disperses the odour

in the immediate vicinity opposite the direction from which it has blown.

Direction of wind in this region of Victoria most frequently blows from the North and North West and

South and South West dispersing odour to the South and South East and North and North East of the

site in the immediate vicinity. The greatest risk of wind borne odour travel is to the south of the site

from northerly winds and to the north east from south-westerly winds. The closest sensitive receptor

is to the east and site, where due westerly’s are infrequent. A wind sock on site helps inform operators

of odour risks to neighbours before turning operations are conducted. Turning and other odour

operations are guided and informed by Procedure 4-214 Wind Direction Monitoring & Activity

Scheduling.

9am Wind 3pm Wind


7.4.1.2 Wind Magnitude The magnitude of force with which wind blows affects the diffusion and dispersal of odour, in that the

faster the wind speed, the better the likelihood of sufficient dispersion. Calm conditions, conversely,

are generally the least favourable for dispersion, allowing for odour to remain stagnant and radially

diffuse from the source at a slower rate, leading to higher concentrations of odorous particles in air.

In this region, calm is experienced only 4% of the time at 9am and 1% of the time at 3pm, indicating

there is almost always sufficient breeze to assist disperse odour. Nearly 25% of wind at 9am is

northerly and usually more than 10Km/pHr and at 3pm the wind is stronger and southerly or south

westerly.

These figures indicate the facility is in a suitable location for a compost operation. The typical

magnitudes of winds are sufficient to enhance odour dispersion and decrease the likelihood it will

affect the nearest sensitive receptors.

7.4.2 Sunshine Exposure

The amount of sun exposure that the site receives also contributes to how well or poorly the odour

from its operations can disperse. Under conditions up to moderate breeze wind speeds earth surface

heating and cooling is the primary factor in dispersion.

Long hours of sunshine contribute to ideal dispersion conditions for odour, minimising the likelihood

that odour will be an issue after the development of the proposed facility. No figures for sunshine are

available from Mortlake however the South West can experience overcast winters and spring in line

with the rainfall requiring more attention to odour management in the winter and spring months No

shadow-casting buildings or vegetation exist in the immediate vicinity of the site, so the maximum

available amount of sunshine at any given time will be able to reach the maturing windrows.

7.4.3 Precipitation

Camperdown is a relatively wet area, receiving an average 762mm per year and excessive precipitation

is a likely contributor to odour nuisance events at the Bookaar site. Being an open facility with force

aerated open windrow technology, Camperdown Compost Company at Bookaar will be somewhat

vulnerable to the effects of precipitation on site but windrows under force aeration treatment are

unlikely to become anaerobic at the base.

Mitigation strategies outlined in this document will be employed in the event of windrows becoming

disproportionately moist and producing anything other than average odour, both in terms of intensity

and character. Precipitation can contribute to odour at composting sites with general surface and road

puddling of contact water producing odours across the whole site which can be managed with good

housekeeping and site cleanliness.

7.5 Identified On-Site Odour Sources

There are number of sources of odour that arise from the Camperdown Compost Company

composting process. The application of best practice management measures would be capable of

minimising and managing odours to an acceptable level. Table 11 provides an inventory of the odour

sourced identifies at the Camperdown Compost Company facility.


Page 34 of 56

Table 11: On-Site Odour Sources Inventory


Responsible Type of

Emission

Likely Compounds

Emitted

Description of Atmosphere

Release Control Measures

Waste delivery

Site Access Waste reception on receipt pad

Incoming loads of source segregated garden organics FOGO and solid K200

Fugitive Fresh feedstock odours

Uncontrolled

• Waste enclosed in delivery vehicles

• Prompt delivery of material and no extended “waiting time” for trucks

Receipts Pad

Spreading, decontamination, and shredding of waste

Disturbance of waste deliveries, exposure to the air for an extended period during decontamination

Fugitive. Potential Spike during shredding

Fresh feedstock odours

Uncontrolled

• Priority processing and windrowing of odorous deliveries

• Rejection of deliveries deemed to be too odorous

LAPs Liquid delivery Loads of K120, K100 & K200

Fugitive Fresh feedstock odours

Uncontrolled

• Immediate de-watering processing

• Prompt blending of solids and residues with chipped solid wastes

• Wash down procedures

Water System

Contact water dam

Water storage Anaerobic conditions Fugitive Anaerobic compounds

Uncontrolled • Aeration of contact water dam

Force Aerated Windrow Processing

Force Aeration Pad

Transfer to windrow pads

Blended feedstock Fugitive Aerobic composting odour

Fugitive emissions as gasses are released from within active material

• Avoid this process in the morning where possible as morning are generally the stillest time of day

Formation of windrows

Active compost Fugitive Aerobic composting odour

Fugitive emissions as gasses are released from

• Use of Procedure 4-214 Wind Direction Monitoring & Activity Scheduling for windrow formation



Responsible Type of

Emission

Likely Compounds

Emitted



within active material

• Appropriate blend ratios for odour minimisation

Windrow turning Windrow force aeration

Active compost Fugitive Aerobic composting odour

Fugitive emissions as gasses are released from within active material

• Use of Procedure 4-214 Wind Direction Monitoring & Activity Scheduling for windrow formation and turning during adequate odour dispersion conditions

• Continuous and regular parameter monitoring for optimal force aeration

• Turning frequency increase if required

• Addition of zeolite or finished compost as odour ameliorants if needed

Maturation Active compost Fugitive

Aerobic maturation odour- reduced intensity

Fugitive emissions as product matures

• Dry process reducing moisture through maturity.

• Appropriate blend ratios for effective microbial breakdown

Screening

Screening Pad

Screening of product

Mature compost Fugitive

Mature product “earthy” odour character. Very limited odour

Fugitive emissions from storage piles

• Use of Procedure 4-214 Wind Direction Monitoring & Activity Scheduling

Storage Storage of finished product



Fugitive emissions from storage piles

• Limits on the volume of mature product which can be stored on-site



Responsible Type of

Emission

Likely Compounds

Emitted



Dispatch Product dispatch



Fugitive emissions from disturbance of storage piles

• None required.


Page 37 of 56

7.6 Odour Control during Normal Operations

The application of good working practices and process control is of fundamental importance in

eliminating and minimising the generation of odours formed on site and their subsequent release to

atmosphere. These practices have written into operations procedures to limit activity during a range

of weather and atmospheric conditions experienced under normal operating conditions.

The overall aim in the operation of the facility is to apply best practice at all stages of the waste

treatment processes undertaken on site. For this reason, the facility will be operated and managed in

accordance with the accepted hierarchy of preferred controls, that is:

1. prevent the formation or emission of odorous compounds in the first place;

2. where this is not practicable, minimise the release of odour;

3. abate excessive emissions; then

4. dilute any residual odour by effective dispersion in the atmosphere

5. continuous meteorological monitoring with alarm function for high risk operational activity

7.6.1 Odour Control Strategies

Several control measures have been worked into the design of the facility in order to ensure best

practice odour management for this type of organics recycling process. The measures to be

employed include:

• Continuous temperature monitoring of windrows and SCADA system controlled aeration

• Continuous weather monitoring with Vaisala weather transmitter with pre programmed

alarms for calm and directional wind to identified receptors in mild wind conditions

• Regular monitoring of gases, oxygen, carbon dioxide and methane within the active

windrows to optimise force aeration cycles

• Turning of windrows

• De-watering of higher risk liquid feedstocks;

• Turning and other odour operations are guided and informed by Procedure 4-214 Wind

Direction Monitoring & Activity Scheduling.

In the sections below, the odour control strategies associated with each process step are described.

These strategies will be incorporated into Camperdown Compost Company’s process and are what

Camperdown Compost Company believes to be best practice odour management for a facility of this

size, technology and location.

7.6.2 Waste Acceptance

All incoming deliveries have been risk assessed and pre-approved in accordance with Procedure 4-330

Pre Receipt Feedstock Assessment & Approval and will be inspected and recorded appropriately. EPA

Trade Waste Certificates will be completed where required. Subject to risk analysis, a random


sampling program operates to ensure the quality and consistency of feedstocks received at the site

using Procedure 4-232 Feedstock Receipts Monitoring and Random Sampling

A major factor affecting the potential for odour emissions at the waste delivery and reception stage is

the content and condition of the feedstock. It is within the site manager’s power to reject any

material (e.g. contaminated or odorous wastes that have been stored too long) that will compromise

his or her ability to manage the site and prevent the emission of unacceptable odours.

Specific controls include:

• For general feedstock acceptance, the policy will require all deliveries to conform to the

specifications within the relevant contract; and

• In accordance with Camperdown Compost Company’s Feedstock Management Plan, all

deliveries must be inspected upon receipt to ensure compliance with the above specifications.

Staff will be trained as to the acceptability criteria for incoming loads. Waste will only be accepted if:

a) It conforms to the type and maximum quantity that is specified in Camperdown Compost

Company’s EPA Licence; and

b) It conforms to the description in the current contract. Receipt dockets will be completed for all deliveries received at Camperdown Compost Company and retained on-site.

7.6.3 Unloading of Wastes

As described, wastes received at Camperdown Compost Company’s Bookaar facility will be unloaded in one of two ways. They are:

• Liquid Acceptance Pit; and

• Receipt Pad.

7.6.3.1 Liquid Acceptance Pit Liquids at Camperdown Compost Company will be processed via the Liquid Acceptance Pit. Liquid will

be immediately processed through a de-watering screen with clean irrigation water stored for

application to windrows and solids and residues blended with chipped solid wastes on the receipts

pad. In contingency and during the transition period of the construction schedule, liquid receipts will

be accepted into bunded green waste bulking agent piles and immediately blended and formed into

a pile awaiting windrow formation on the aerated floor.

7.6.3.2 Receipt Pad The garden organics, FOGO, commercial food waste and solid K200 deliveries will be tipped onto the

receipts pad. The newly deposited feedstock is visually inspected by the decontaminators once the

waste is tipped on the floor. Any contaminants are removed and disposed in accordance with

Camperdown Compost Company’s Recycling Policy.


Temporary storage in reception area The holding time of feedstock material stored prior to processing is a significant factor in a site’s

potential for odour generation. The holding times of the chipped garden organics and FOGO waste

delivered to the facility are to be carefully controlled to minimise uncontrolled decomposition prior

to processing. Piles waiting for windrow formation will be turned by loader or excavator to maintain

an aerobic state during favourable atmospheric conditions. Non-odorous materials will be chipped

and stored on the receipt pads until available for processing. Camperdown Compost Company will not

store material on the receipt pad for longer than 5 days.

• Holding time is limited to five days in order to minimise the potential for odour generation.

In practice, the feedstock will spend less than 3 day prior to being moved the windrow pad.

• Waste will be processed in the order delivered (with the exception of excessively odorous

batches which will be processed as a priority)

Cleaning

Regular scheduled cleaning of the handling equipment such as loaders and excavators used in receipt

areas as well as the roads, the receipt pad itself and drainage channels will discourage odour

generation from remnants of organic materials decomposing. The exact nature of these sweep and

wash procedures will be developed and detailed in separate procedures which will be developed

during the commissioning testing phase of the facility. This section of the document will be updated

once this has taken place.

7.6.5 Force Aerated Windrow Composting

Operation of Plant and Process to Minimise Odour Releases Each windrow will be independently monitored and managed to maximise compost efficiency with

the delivery of oxygen via the air floor as required per the continuous monitoring probes. This will

ensure optimal aerobic conditions to minimise offensive odour emissions.

Contact water and leachate from the process will drain into the collection drains located within the

air floor. This will keep leachate and contact water contained underground, minimising odour from

open drains. The drain connects to the contact water dam

The site’s rural context and appropriate management strategies will suffice in mitigating these odours. Strategies to be employed are:

• Continuous monitoring of temperature of windrows at three different depths driving

computerised automatic force aeration to ensure optimal composting conditions maximise

odour suppressing conditions.

• Regular monitoring of oxygen, carbon dioxide and methane will further inform windrow

management decisions on the effectiveness of temperature driven fans and their correlation

to levels of oxygenation, carbon dioxide and methane

• Turning to break up aerobic clumps and fissures forming to maintain even airflow and

convection within the windrows using the listed parameters to guide the frequency. This will

minimise odorous turning events.


• Close monitoring of weather forecasts to couple odourous processes (i.e. turning) with

favourable atmospheric conditions for adequate dispersion.

Regular turning of the windrows is an essential odour management strategy used to compliment the

force aerated system by providing regular mixing and agitation to the static windrows. It

simultaneously aerates and irrigates the piles and facilitates evaporation of moisture from within the

pile, while the agitation breaks up any anaerobic clumps preventing the collection of water within the

pores of the pile. The parameters for force aeration and turning activities is listed below. Windrows

will be turned on a minimum weekly cycle and may be turned daily if required in the early stages of

the forced aeration process to minimize odour potential.

Table 12: Turn Frequency Parameters







7.7 Odour Control during Upset Conditions

This section of the document deals with the management and control of odours during unusual or

emergency situations. It outlines the contingency strategies Camperdown Compost Company can

employ during abnormal events and process upsets (including emergencies, maintenance,

breakdowns, extreme weather events, etc.).

A risk assessment approach has been employed in the evaluation of odour control techniques during

maintenance and abnormal events. This approach is designed to:

• identify the location and conditions under which abnormal operational conditions or failures

might arise;

• summarise the potential impact or consequences of the identified abnormal / failure situation

and assesses the degree of those impacts; and

• describe how the conditions could be prevented and/or mitigated and controlled.

• use of the weather station and pre-set alarm for operational activity risks such as windrow

turning.

The majority of abnormal situations can be controlled in some way by good management of the facility

and feedstocks. Solutions to mechanical problems will necessitate the replacement or repair of

component parts. Breakdowns should be minimised, as maintenance of odour critical plant and

equipment will limit such occurrences. Furthermore, the system has been designed with key

redundancies to enable operation of the odour control system even with failures in other parts of the

system. The combination of the aerated floor and self-propelled turners allows the continuation of


aeration operations and odour minimisation with the breakdown of either aeration option. The

chances of both aeration options simultaneously failing is very small.

Where planned or emergency maintenance of plant items has to be carried out and there is a

likelihood of odour being released to atmosphere, it can be managed so that it is highly unlikely that

this will be in quantities sufficient to result in detection offsite. Camperdown Compost Company’s

location provides some protection that even during periods of maintenance and upset conditions,

odour is unlikely to cause any prolonged disturbance to the community.

This document is to be retained on-site and will be referred to in the event of a process upset which

may cause excess odour generation. Below is summary of the foreseeable situations that may

compromise the operator’s ability to prevent and/or minimise odorous releases from the process and

the actions to be taken to minimise the impact.


Page 42 of 56

Table 13: Potential Upset Conditions Resulting in Excess Odour

Location of Emission

Circumstance which may lead to excess emission

Consequence Measures in place prevent or

reduce consequence Actions to be taken

Access Route

Delivery of larger volume of feedstock over a short period of time

Excessive material on site generating more odour than usual

• Carefully scheduled deliveries

• Planned major receipt events

• Prioritise batches and process those with potential for odour first

Gradual accumulation of spilt feedstock from delivery vehicles on access route and receipts areas

Uncontrolled breakdown of this residual feedstock, potential odour annoyance

• Covering of delivery vehicles

• Clean up and wash down procedures

• Regular inspection of the access route

• Collection of any feedstock along the route

Receipts Pad

Delivery of unusually odorous feedstock

Fugitive releases of highly odorous emissions

• Initial odour assessment of feedstock

• Training of all staff as to the grounds on which to reject a batch of feedstock

• Rejection of delivery if deemed necessary

• Quick response to blending & forming up into windrows

• Blending with odour reducers such as zeolite or finished compost

• Record odour event on corresponding feedstock receipt form

• Contact client and report odorous delivery

• Identify reason for odorous delivery and implement any prevention measures available for the future

Backlog of solid material becoming malodourous


• Delivery schedules properly managed and adhered to

• Deliveries that cannot be processed in a timely manner to be sent to alternate organics recycling facility or landfill

• Cover material with mature compost to act as a bio-filter

• Prioritise Solid K200 and FOGO and for processing over garden organics

• Prioritise blending separated solids and liquid receipts pits residue material






Gradual accumulation of feedstock on pads


• Site Manager to make regular assessments of state of receipts pad

• Sweeping of accumulated material and wash down of receipts area

LAP

Delivery of particularly malodorous feedstock

Excessive odour

• Initial inspection of deliveries

• Clear and defined conditions for delivery standard made clear to customers

• Rejection of delivery if deemed necessary

• Record odour event on corresponding feedstock receipt form

• Contact client and report odorous delivery

• Identify reason for odorous delivery and implement any prevention measures available for the future

Delivery of larger than usual volume of feedstock Spill or overflow event

Excessive odour caused by exposure of large liquid surface area to air

• Carefully scheduled deliveries

• Planned major receipt events

• Volume buffer of LAP

• Immediate de-watering process for liquid receipts

• Give a short amount of time for sediment to form (20 mins approx.) and commence pumping liquid layer to storage tanks

• Sweep any overflow into LAP as soon as there is sufficient space

• Hose down spill area, directing run-off into LAP

Gradual accumulation of material in the receipts pit


• Weekly inspection of LAP

• Cleaning as required following inspection

• Prioritise blending separated solids and liquid receipts pits residue material

• Clean when required as indicated by regular inspection

• Use appropriate cleaning materials and methods, such as high pressure washer to scrub walls and base of pit area.

Contact Water Dam

Anaerobic conditions Odorous emissions • Aeration of the contact

water • Run aeration system continuously

• Monitor dissolved oxygen






Transfer to Force Aeration Pad

Unfavourable weather conditions (temperature inversion, low wind speed, wind blowing towards nearest sensitive receptor)

Accumulation of odour in the air, potentially detectable at sensitive receptors

• Close monitoring of weather conditions and scheduling accordingly

• Transfer when weather conditions improve, (usually wind picks up in the afternoon)

• 4-214 Wind Direction Monitoring & Activity Scheduling Procedure

Force Aerated Windrow Composting

Over wetting of material before windrow formation

Anaerobic conditions within windrow

• Additional dry feedstock available on site

• Addition of dry feedstock finished compost to absorb excess moisture

• Turn immediately on windrow formation

• Override monitored force aeration and manually run air continuously

Extreme weather events involving excess rain


• Monitoring of weather forecast, and modifying irrigation regime when heavy rain is expected

• Override monitored force aeration and manually run air continuously

• Increase turn regime accordingly. & Turn without water application

Hardstand Windrow Maturation

Over wetting of material before windrow formation


• Run fans continuously for 24 hours prior to formation on the hardstand

• Turn without water application

• Addition of dry feedstock or finished compost to absorb excess moisture

• Turn immediately on windrow formation

Extreme weather events involving excess rain


• Monitoring of weather forecast when heavy rain is expected

• Increase turn regime accordingly.

Batching and Screening

Unusual weather conditions at the site such as extreme temperature inversion

Poor dispersion of earthy odour of mature compost

• Daily checking of weather forecast

• 4-214 Wind Direction Monitoring & Activity Scheduling Procedure


Page 45 of 56

8 Vegetation Management

Camperdown Compost Company is located at in a rural region of south west Victoria. Camperdown

Compost Company is committed to environmental sustainability, and recognises the important role

the vegetation of the landscape plays in the region.

8.1 Scope

The aims of this section of the Environmental Management Plan are:

• To identify weed species which pose the greatest threat to the region and the Camperdown

Compost Company site;

• To provide weed management strategies.

8.2 Site and Soil Information

The geology of the region is defined by State of Victoria (Agriculture Victoria) soil_landform_units147

updated 31/01/2019 as neogene fluvial and marine sediments and quaternary scoria deposits with

parent material being aeolian deposits and alluvium; clays and silts and soils as neutral and alkaline

black cracking clays which are strongly structured but expansive clay soils, with moderate to rapid site

drainage. High nutrient capacity, calcareous and sodic, particularly at depth.

8.3 Climate

Camperdown experiences climatic conditions consistent with much of Victoria. It is temperate with a

warm summer and cold winters. January and February are the hottest months, when the average

temperature reaches 26.5°c. In winter, the weather becomes coldest in July when the minimum

averages 4.6°c and the maximum gets to 13°c.

Rainfall is seasonal throughout the year, however summer months tend to be the driest and the wettest period is May to October.

Figure 4: Mortlake – Camperdown Average Rainfall mm

0

10

20

30

40

50

60

70

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Raifall

mm

Mortlake Camperdown Rainfall

Mean Median


8.4 Weeds

Weeds cost industry millions of dollars each year in lost productivity and have a significant impact on

our customers and the natural environment. In Victoria, there are over one hundred declared noxious

weeds proclaimed under the Catchment and Land Protection Act 1994.

These weeds are classified under four categories: State Prohibited, Regionally Prohibited, Regionally

Controlled and Restricted.

All land managers have a responsibility to manage weeds on their land, irrespective of whether the

land is public or private land.

As a land manager, it is important to be able to identify weeds that may pose a threat to the site,

neighbouring land or customers. Early identification will enable implementation of management plans

that prevent weed establishment or spread.

The responsibility for management of declared noxious weeds varies for each category.

A number of different weed species are problematic at Camperdown Compost Company. The species

which are deemed to pose the largest threat are listed in Table 17. This table is not exhaustive and

other weed species may be present on site or appear on site in future.

8.4.1 Weed Threat

Weeds pose a significant threat to Camperdown Compost Company’s operations. Camperdown

Compost Company produces compost to be applied to agricultural land. The threat of weed

propagules within the compost material must be controlled to prevent the spread of weed species to

the lands to which the compost is applied. Weed species can devastate entire farms, as weed species

compete with crops. Moreover, farms which are organic certified cannot use herbicides to control

weeds and thus must carefully manage the threat using non-chemical methods.

8.4.2 Weed Control Options

Weed propagules are likely to arrive at Camperdown Compost Company daily in kerbside collection

bins and from other garden maintenance services. Weed seeds may also be blown in from the

surrounding area or be brought in attached to any visiting vehicles. Camperdown Compost Company

has a number of control measures in place to manage the risk associated with this aspect of its process.

Camperdown Compost Company seeks to minimise the use of chemical pesticides on site as this may

result in inorganic contamination to feedstock and compost material. The use of glysophate is

acceptable and the property will be periodically sprayed as required to ensure weeds are kept under

control. The alternative weed control measures Camperdown Compost Company will adopt are

outlined below.


8.4.2.1 Litter Fence Camperdown Compost Company has a litter fence which runs along the perimeter of the site. This

fence plays an important role in managing the spread of weeds off-site. Material which is unloaded

on the receipts pad may be vulnerable to the effects of wind, and blown from the pad. The litter fence

will serve to catch any litter or plant material which is blown from the hardstand, preventing the

potential spread of weed species off-site.

8.4.2.3 Receipts Pad The receipts pad is where all the deliveries are unloaded from delivery trucks and spread for

decontamination. The concrete pad separates the weeds within the delivery from the soil below,

preventing the spread of weeds.

8.4.2.4 Staff Training All Camperdown Compost Company staff will be trained to be proficient at the following:

• Identify problem weed species at Camperdown Compost Company;

• How to remove weeds effectively; and

• How to dispose of weeds appropriately (minimising risk of spread or contamination of finished compost product)

8.4.3 Weed Disposal Procedure

1. Weeds are to be identified by a trained member of staff

2. Weeds to be sprayed as required.

3. Where weeds are to be manually removed. Staff members removing weeds must be wearing

PPE All effort is to be made to ensure the entire root system of the weed is removed during

the removal process (not just the visible section of the plant). For this reason, and to reduce

the risk of back injury, the winged weeder should be used.

4. Removed weeds are to be collected into a weed bucket

5. Contents of weed bucket are to be emptied onto the receipts pad and processed with other

feedstocks. The pasteurisation process ensures weed and seed destruction and renders the

weeds safe.

Under no circumstances is weed material to be added to Camperdown Compost Company’s compost

product at any stage other than at the formation of a new windrow. Weed material added at any other

stage may not be effectively pasteurised and may result in contamination of Camperdown Compost

Company’s product.


Current 20 July 2017

SCHEDULE 1

State Prohibited Weeds

Common name Scientific name

Alligator weed Alternanthera philoxeroides (Mart.) Griseb.

Bear-skin fescue Festuca gautieri (Hack.) K. Richt.

Black knapweed Centaurea nigra L.

Branched broomrape Orobanche ramosa L.

Camel thorn Alhagi maurorum Medik.

Giant knotweed Fallopia sachalinensis (F. Schmidt ex Maxim) Ronse Decr.

Giraffe thorn Acacia erioloba E. Mey

Hawkweed Hieracium spp.

Horsetail Equisetum L. spp.

Ivy-leafed sida Malvella leprosa (Ortega) Krapov.

Japanese knotweed Fallopia japonica (Houtt.) Ronse Decr.

Japanese knotweed hybrid Fallopia x bohemica (Chrtek & Chrtkova) J.P.Bailey

Karoo thorn Acacia karroo Hayne

Lagarosiphon Lagarosiphon major (Ridl.) Moss

Lobed needle grass Nassella charruana (Arechav.) Barkworth

Marijuana Cannabis sativa L.

Mesquite Prosopis spp.

Mexican feather grass Nassella tenuissima (Trin.) Barkworth

Nodding thistle Carduus nutans L.

Parthenium weed Parthenium hysterophorus L.

Perennial ragweed Ambrosia psilostachya DC.

Poverty weed Iva axillaris Pursh.

Salvinia Salvinia molesta D.S. Mitch.

Tangled hypericum Hypericum triquetrifolium Turra

Water hyacinth Eichhornia crassipes (Mart) Solms


SCHEDULE 2

Regionally Prohibited Weeds (P), Regionally Controlled Weeds (C), or Restricted Weeds (R)

Common name Scientific name C

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African boxthorn

Lycium ferocissimum Miers C C C C C C C C C C

African daisy Senecio pterophorus DC. P R C P R P P C P P

African feather grass

Pennisetum macrourum Trin. P P C P P P P P P P

African love grass

Eragrostis curvula (Schrad.) Nees C C R C R C C C C R

Amsinckia Amsinckia spp. P C P C R C C C P R

Angled onion Allium triquetrum L. Restricted weed (R) in the whole of the State

Apple of Sodom

Solanum linnaeanum Hepper & P.-M.L. Jaeger R C R R R R P C C R

Arrowhead Sagittaria L. spp. P P P C P C C P P P

Artichoke thistle

Cynara cardunculus L. C R R P C C P C P R

Asparagus fern

Asparagus scandens Thunb. Restricted weed (R) in the whole of the State

Athel pine/ tamarisk

Tamarix aphylla (L.) H. Karst. Restricted weed (R) in the whole of the State

Bathurst burr Xanthium spinosum L. C C C C R C C C C C

Bellyache bush

Jatropha gossypiifolia L. Restricted weed (R) in the whole of the State

Bindweed Convolvulus arvensis L. R P R R R R C C C C

Blackberry Rubus fruticosus L. agg. C C C C R C C C C C

Boneseed/ Bitou bush

Chrysanthemoides monilifera (L.) Norl. C P C C C P P C C C

Bridal creeper Asparagus asparagoides (L.) Druce Restricted weed (R) in the whole of the State


SCHEDULE 2



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Bridal veil creeper

Asparagus declinatus L. Restricted weed (R) in the whole of the State

Buffalo burr Solanum rostratum Dunal R R R C R R P P R P

Californian/ Perennial thistle

Cirsium arvense (L.) Scop. C C C C R P P C C C

Caltrop Tribulus terrestris L. C R C C R C C P P C

Cape broom Genista monspessulana (L.) L.A.S. Johnson C C R C R R C C C C

Cape tulip (one-leaf)

Moraea flaccida (Sweet) Steud. C C C P P C C C C C

Cape tulip (two-leaf)

Moraea miniata Andrews P P C P P C C C P P

Cat’s claw creeper

Dolichandra unguis-cati (L.) L.G. Lohmann Restricted weed (R) in the whole of the State

Chilean cestrum

Cestrum parqui L'Her. R P R C R R C P P C

Chilean needle grass

Nassella neesiana (Trin. & Rupr.) Barkworth Restricted weed (R) in the whole of the State

Climbing asparagus

Asparagus plumosus Baker Restricted weed (R) in the whole of the State

Devil's claw (purple-flower)

Proboscidea louisianica (Mill.) Thell. R R C C R R C P R R

Devil's claw (yellow-flower)

Proboscidea lutea (Lindl.) Stapf R R C C R R C P R R

Dodder Cuscuta L. spp. R R R C R R C C P P

English broom Cytisus scoparius (L.) Link C P R C R R C C C P

Fennel Foeniculum vulgare Mill. C R R R R R R R R R


SCHEDULE 2



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Fireweed Senecio madagascariensis Poir. Restricted weed (R) in the whole of the State

Flax-leaved broom

Genista linifolia L. C P R R R R P C C C

Gamba grass Andropogon gayanus Kunth Restricted weed (R) in the whole of the State

Golden thistle Scolymus hispanicus L. C R P C R C P C R R

Gorse/ Furze Ulex europaeus L. C P C C R C C C C C

Great mullein Verbascum thapsus L. R C R C R R C R R R

Ground asparagus

Asparagus aethiopicus L. Restricted weed (R) in the whole of the State

Hardheads/ Russian knapweed

Rhaponticum repens (L.) Hildalgo P R P C C C P P R C

Hawthorn Crataegus monogyna Jacq. R C R C R R C C C C

Hemlock Conium maculatum L. C R R C R R C C C R

Hoary cress Lepidium draba L. C R R C C R P C C R

Horehound Marrubium vulgare L. C C C C R C C C C C

Hymenachne, Olive hymenachne

Hymenachne amplexicaulis (Rudge) Nees

Restricted weed (R) in the whole of the State

Illyrian thistle Onopordum illyricum L. R P R P R C P P R R

Khaki weed Alternanthera pungens Kunth. R P R C R C P P R C

Lantana Lantana camara L. Restricted weed (R) in the whole of the State

Madeira vine Anredera cordifolia (Ten.) Steenis Restricted weed (R) in the whole of the State


SCHEDULE 2



ora

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Mimosa, giant sensitive plant

Mimosa pigra L. Restricted weed (R) in the whole of the State

Noogoora burr/ Californian burr

Xanthium strumariam L.

P R C C C C C C P P

Opuntioid cacti

Austrocylindropuntia Backeb. spp. Restricted weed (R) in the whole of the State

Opuntioid cacti

Cylindropuntia (Engelm.) F. M. Knuth spp. Restricted weed (R) in the whole of the State

Opuntioid cacti

Opuntia Mill. spp. (except O.aurantiaca Lindl., O. monacantha Haw., O. robusta H.L. Wendl. ex Pfeiff., Opuntia stricta (Haw.) Haw., O. ficus-indica (L.) Mill.)


Ornamental asparagus

Asparagus africanus Lam. Restricted weed (R) in the whole of the State

Ox-eye daisy Leucanthemum vulgare Lam. C R R C R R R C C R

Pampas lily-of-the-valley

Salpichroa origanifolia (Lam.) Thell. R P R R R R C C R R

Parkinsonia/ Jerusalem-thorn

Parkinsonia aculeata L. Restricted weed (R) in the whole of the State

Paterson's curse

Echium plantagineum L. C C C C R C C C C C

Pond apple Annona glabra L. Restricted weed (R) in the whole of the State

Prairie ground cherry

Physalis hederifolia A. Gray C R R C C C C C R P

Prickly acacia Acacia nilotica (L.) Delile subsp. indica (Benth.) Brenan



SCHEDULE 2



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Prickly pear (drooping)

Opuntia monacantha Haw. R R R R C C C C P C

Prickly pear (erect)

Opuntia stricta (Haw.) Haw. R R R R C C C C P C

Ragwort Senecio jacobaea L. C C C P R R P C C R

Rubber vine Cryptostegia grandiflora R. Br. Restricted weed (R) in the whole of the State

Saffron thistle Carthamus lanatus L. R C R C R R C C C C

Sand rocket/ Sand mustard

Diplotaxis tenuifolia (L.) DC. R R C R R R R C R R

Scotch/ Heraldic thistle

Onopordum acanthium L. C C C C R P C P C R

Serrated tussock

Nassella trichotoma (Nees.) Hack. ex Arechav. C P P P P P P C C P

Silverleaf nightshade

Solanum elaeagnifolium Cav. C R P C C C C P R C

Skeleton weed Chondrilla juncea L. R R C R R R R P R R

Slender/ Shore thistle

Carduus tenuiflorus Curtis/ C. pycnocephalus L.

R C R R R R C C C R

Soldier thistle Picnomon acarna (L.) Cass. R R R C R P C P R R

Soursob Oxalis pes-caprae L. Restricted weed (R) in the whole of the State

Spear thistle Cirsium vulgare (Savi) Ten. R C R R R R C C C R

Spiny broom Calicotome spinosa (L.) Link C R R R R R P P R C

Spiny burr grass/ Gentle Annie

Cenchrus longispinus (Hack.) Fernald R R P C C C C P R C


SCHEDULE 2



ora

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Gip

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Spiny emex Emex australis Steinh. R R R C C R C P R P

Spiny rush Juncus acutus L. R C C C R C C C C C

St Barnaby's thistle

Centaurea solstitialis L. P P P C R R C P P C

St. John's wort Hypericum perforatum L. C C C C R C C C C C

St. Peter's wort

Hypericum tetrapterum Fr. R R R R R R C C R R

Star thistle Centaurea calcitrapa L. R C R R R R C P C R

Stemless thistle

Onopordum acaulon L. R C R R R R C P R R

Stinkwort Dittrichia graveolens (L.) Greuter R R R R R R C C R R

Sweet briar Rosa rubiginosa L. C C C C R C C C C C

Thorn apple (common)

Datura stramonium L. R R C C R C C C C R

Thorn apple (long-spine)

Datura ferox L. R R C C R C C C C R

Thorn apple (recurved)

Datura inoxia Mill. R R C C R C C P P R

Tiger pear Opuntia aurantiaca Lindl. C P P C P P P C C P

Topped lavender

Lavandula stoechas L. R R R R R R C R R R

Tree of heaven

Ailanthus altissima (Mill.) Swingle R C C C R R C C C R

Tufted honeyflower

Melianthus comosus Vahl R R R C R R R C C R

Tutsan Hypericum androsaemum L. R C R C R R C C C R


SCHEDULE 2



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Variegated thistle

Silybum marianum (L.) J. Gaertn. R C R C R R C C C R

Viper's bugloss

Echium vulgare L. C C C C R R C C C C

Wheel cactus Opuntia robusta H.L. Wendl. ex Pfeiff. R R R R C C C P R C

Wild garlic Allium vineale L. R R R P C C C R R C

Wild mignonette

Reseda luteola L. Restricted weed (R) in the whole of the State

Wild teasel Dipsacus fullonum L. subsp. fullonum R R R R R R C C C R

Wild watsonia Watsonia meriana (L.) Mill. var bulbillifera (J.W. Mathews & L. Bolus) D.A. Cooke

C C R R R R C C C R

Willows Salix spp. (except Salix alba var. caerulea (Sm.) Sm., Salix alba x matsudana, Salix babylonica L., Salix X calodendron Wimm., Salix caprea L. ‘Pendula’, Salix matsudana Koidz ‘Aurea’, Salix matsudana Koidz ‘Tortuosa’., Salix myrsinifolia Salisb., and Salix X reichardtii A. Kern.)



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9 Pest Management

Camperdown Compost Company’s Bookaar site is isolated and located in a rural region. Poorly

managed composting may encourage pests and vermin which can spread plant and animal pathogens,

cause environmental contamination and generate a product of inferior quality. There are some

wildlife species that inhabit the area, mainly snakes but are rarely seen on site because of the amount

of ground vibrating machinery that deters them.

9.1 Scope

The aim of this section of the EMP serves to identify the best practice management strategies and to provide a framework for how these strategies should be implemented. It seeks to outline:

• Pest population control measures to be implemented;

• Strategies for minimisation of the effects of pests on Camperdown Compost Company’s process;

9.2 Pests

Pests are defined as non-native species that are, or have the potential to become, established in the

wild through the landscape to a degree significant enough to have detrimental effects on the

Camperdown Compost Company process. Pests which have been identified as threatening to

Camperdown Compost Company are listed below:

• Foxes;

• Mice;

• Birds;

• Mosquitos;

• Rats; and

• Rabbits;

9.2.1 The Effects of Pests

Vermin, birds and wind can all act as vectors to transport waste, weeds and/or pathogens off site. This

can be a potential risk to the environment, biosecurity, amenity and human health. Many pests such

as mosquitoes and rats, are also vectors, acting as living transmitters of disease. Vectors are a health

hazard to site personnel and neighbouring residents as they are capable of transmitting diseases to

humans, pets and crops.

Staff should be trained to be able to identify indicators of vectors present at the facility, including

tracks, droppings, gnaw marks, and habitats (burrows etc.) in addition to visual sightings of various

pest species. Staff must notify management if pest indicators are observed on-site.


9.2.2 Pest Control Measures

The control measures to be used in pest management at Camperdown Compost Company are listed in the table below.


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Table 13: Pest Management Control Measures

Process Step Risk Control Measures Comment

Receipt of Feedstock High • Receipt of chipped or shredded material

• Immediate processing into thermophilic piles

• Feedstock limited to 3 days on receipts pad

Shredded material reduces obvious pest food items by homogenisation with bulking agents. Direct delivery limits exposure of feedstock and gives pests no access.

Decontamination High

• Direct delivery of high risk feedstock

• Regular cleaning of receipts area concrete

• Processing of commercial food waste as a priority

Food waste is higher risk for vectors and will be processed as a priority over garden organics where possible. Blending into a thermophilic pile very rapidly degrades food items into inedible form.

Force Aerated Windrow Composting

Medium

• Inspection of windrows after turning

• Covering any exposed food scraps with mature compost

• Re-turning the windrow to further physically degrading food particles

Screening and Dispatch Low • Good housekeeping and maintenance of stockpiles By this stage of the process, product will be pasteurised and fully mature, and poses a very low risk for vector transmission

Overall site operation Medium

• Site fencing to prevent vermin entry

• Good housekeeping to maintained at all times

• Regular mowing of grass during summer period

• Careful management and upkeep of vegetation (particularly grass) around site office)

• Record keeping of pest sightings and events

• Baiting

Good housekeeping in everyday operations at the site are essential for pest management. Keeping records of pest sightings and events aids to monitor the efficiency of pest control measures and indicate if additional or alternative measures should be put in place. Baiting, particularly for mice and rats, is essential for the management of snakes as some snake species eat these pests and will be attracted to the site if they are present in large numbers


10 Complaint Handling and Document Control

10.1 Complaint Management and Document Control

This section of the Environmental Management Plan provides relevant information on:

• Staffing Responsibilities;

• Staff training;

• Complaint Management; and

• Communication with external stakeholders.

10.1.1 Roles and Responsibilities

Camperdown Compost Company is committed to effective management of the potential for

environmental impacts from its Bookaar facility. This commitment extends from policies made at

management level to the resources available to the staff managing odour critical operations on site.

This section describes the responsibility for the management and operation of the facility.

The company has appointed managers with the executive authority and responsibility for

implementing the Environmental Management Plan. The management odour and implementation of

environmental best practice is a responsibility shared by all members of the Camperdown Compost

team. It is the responsibility of the Operations Manager to ensure that all staff are adhering to

Camperdown Compost Company policy including the Environmental Management Plan.

Any deviances from the policy must be addressed with the staff by the Operations Manager. Any

breaches in environmental requirement including breaches in odour management requirement must

be reported to and promptly addressed by the Site manager to the Operations Manager. The CEO

must maintain good communication with the Environment Protection Authority to prevent nuisance

odour events and swiftly rectify any events which may arise.

More information on the roles and responsibilities of Camperdown Compost Company staff is

available in position descriptions.

10.1.2 Complaints Handling Procedure

Camperdown Compost Company is committed to best practice and believes the design of its Bookaar

facility in combination with the site location and Environmental Management Plan will effectively

manage odour generation at the site to ensure no off-site impacts are experienced. However in the

event that an odour complaint is received, it is essential that complaints are appropriately handled,

documented and acted upon.


10.1.2.1 Recording of Complaints Members of the community must be able to contact Camperdown Compost Company with any

environmental complaints about the facility. Community members looking to contact Camperdown

Compost Company can contact staff via the following:

• By phone: 03 5593 3737

• By email [email protected]

This contact information must be made available to the community to ensure facilitate quick and

effective communication of odour or other environmental events.

All complaints must be registered in the Camperdown Compost Company Complaints Register.

Complaint data will be recorded in a systematic way, enabling comparison with standard weather

conditions and other contributing factors.

10.1.2.2 Roles and Responsibilities for Complaint Management The following team members will deal with specific aspects of complaint management:

• The Site Manager or Operations Manager will receive any complaints; and

Wherever possible, the following information should be gathered for each complaint:

• The time and date the event occurred;

• The location the event was observed from;

• The complainants best description of the offence;

• The identity of the complainant; and

• Residential address of complainant.

Following the collection of this information, enquiries should be made as to the

• Wind direction and speed, atmospheric stability at the time of the odour event;

• What processes were being undertaken with what materials at the time;

• Any process interruptions or incidents at the time of the complaint; and

• Any off-site activities taking place in the area at the time.

10.2 Document Control

This document is a controlled document and forms part of Camperdown Compost Company’s

Management System.

This document is intended to be a live document which serves as a reference during day-to-day

operations, and as such would be updated on a more frequent basis should the following occur:


• Significant changes to the facility and its operational process;

• Change in the management structure, designation of responsibility of training provision;

• The EPA requests changes to Camperdown Compost Company environmental management

procedures; and

• A significant volume of complaints is received and after subsequent investigation, result in the

identification of further control measures or remedial action, in addition to those set out in

this document.