Westralia Airports Corporation Pty Ltd ABN /2002 Environment Report. Westralia Airports Corporation.

Transcription

1 Westralia Airports Corporation Pty Ltd ABN Postal Address: Westralia Airports Corporation PO Box 6 Cloverdale WA 6985 Westralia Airports Corporation 20/20 Environment Report Street Address: Baker Road Perth Airport WA 6105 Telephone: Fax: perthairport@wac.com.au Web:

2 CONTENTS CHIEF EXECUTIVE OFFICER S REPORT 1 Page ENVIRONMENTAL PERFORMANCE 2 ENVIRONMENTAL STRATEGY & COMMITMENTS 3 NATIONAL POLLUTANT INVENTORY 8 COMPLIANCE 9 INCIDENTS 9 Level 1 9 Level 2 9 Level 3 10 Level 4 10 WATER QUALITY MONITORING 10 HYDROGEOLOGY 11 SURFACE WATER HYDROLOGY 11 SAMPLING METHODOLOGY 11 RESULTS AND DISCUSSION 11 SURFACE WATER 12 Northern Main Drain (NMD) 12 Southern Main Drain (SMD) 12 Poison Gully Branch Drain 13 ACCEPTANCE CRITERIA AND LABORATORY DETECTION LIMITS 13 MONITORING PROGRAM RECOMMENDATIONS 14 AIRCRAFT NOISE MANAGEMENT 14 NOISE MANAGEMENT STRATEGY COMMITTEE 14 NOISE AND FLIGHT PATH MONITORING SYSTEM 14 AIRCRAFT NOISE COMPLAINTS 14 AIRCRAFT ENGINE GROUND RUNNING 15 AIRCRAFT NOISE INFORMATION 15 Australian Noise Exposure Index (ANEI) 16 Flight Path Maps 17 Track Density Plots 19 Flight Path Movements Chart 20 Respite Chart 20 Measured N70 Chart 20 N70 Contours 21 CONTAMINATED SITES 22 AUSTRALIAN GOLD REFINERIES (AGR) 22 SHELL SERVICE STATION 22 LAND MANAGEMENT 23 FLORA CONSERVATION WORKS 23 BP Fuel Line 23 Ambush Hill 23 Precinct 3B - Hazelmere 24 Priority Weed Control 25 Munday Swamp 25 VERTEBRATE PEST CONTROL PROGRAM 26 Rabbits 26 Foxes 27 Feral Cats 27 CLEAN UP AUSTRALIA DAY 28 ABANDONED VEHICLE COLLECTION 28 ENVIRONMENTAL OUTLOOK 29 THE ENVIRONMENTAL MANAGEMENT SYSTEM 29 ENVIRONMENT STRATEGY REVIEW 29 CONSERVATION INITIATIVES 29 CHIEF EXECUTIVE OFFICER S REPORT Westralia Airports Corporation maintained a strong commitment to it's Environmental Strategy throughout 20/. WAC s Environmental Management Plan (EMP), covering management requirements for the entire business, has been completed in draft form and has undergone independent review against the requirements of AS 140. The revised draft is now subject to an internal review and ratification process. All existing conservation initiatives have been maintained this year. Encompassing over 1200ha of the estates bushland, with precincts 5 and 7 as highest priority (~350 ha): weed control (wetland and bushland), vertebrate pest management, rubbish collection, signage and access control works have been successfully undertaken. Significant capital expenditure requirements to improve the surrounds of Munday Swamp rationalise the fire tracks and manage the conservation areas (precincts 5 and 7) have been identified during the 20/ year. WAC is seeking to address associated risks from unauthorised access, prior to initiating such works. The environmental responsibilities of new tenants are being managed through our approvals process, which ensures licensing of facilities where appropriate. Tenant EMP development continues as the primary initiative in identifying potential impacts and increasing awareness of environmental responsibilities. Eventually tenant EMP s will be used to determine routine annual reporting requirements. This system is congruous with the state Environmental (Pollution Prevention) Licensing system. Existing tenants are currently being audited against previously identified operational risks. WAC s Environmental Officer and the Commonwealths Airport Environmental Officer (AEO) on a monthly basis jointly conduct the Audits. We look forward to including these results in our next Annual Environmental Report. Internal Environmental Awareness has been driven in the past year by a workplace awareness training program for senior and executive staff. Held over two days the recent program covered aspects such as the environmental provisions of the Airport Act and Regulations, as well as the role of the AEO and progress on the Environmental Strategy Commitments. Graham Muir Chief Executive Officer ENVIRONMENT POLICY Westralia Airports Corporation recognises the importance of maintaining and enhancing the quality of the environment. In developing and managing Perth Airport we will establish and maintain a system, which endeavours to achieve best practice and: Identifies, prevents, controls or reduces significant environmental impacts associated with airport operations. Complies with relevant environmental legislation and regulations. Sets, in consultation with Commonwealth, State and Local authorities and the general public, specific environmental objectives and targets to reduce our environmental impact and prevent pollution. Continually measures, monitors, reports and improves upon the environmental performances defined by our objectives and targets. Responsibly manages resources and wastes to enhance sustainable development. Promotes Westralia Airports Corporation commitment to the environment, to its employees, tenants, customers and neighbours. The Environment Policy statement has been formally adopted by the Board of Westralia Airports Corporation and issued under the signature of the Chief Executive Officer. ENVIRONMENTAL PERFORMANCE Environmental Strategy & Commitments Objectives listed in The Environment Strategy 1. To establish and maintain an Environmental Management System that is consistent with ISO 140 series and which ensures continuous improvement 2. To attend to outstanding environmental issues and to maintain systems that can in the future identify and keep up to date the environmental aspects of Perth Airport s Activities. 3. To establish environmental management teams and committees 4. To establish procedures to achieve best practice and environmentally sustainable resource management and waste disposal 5. To monitor, measure, control, reduce or prevent airport pollution, including that produced by tenants. 6. To establish and maintain systems to ensure that the requirements of the Act and the Regulations are fulfilled including matters of natural, indigenous and heritage values and environmental assessment 7. To maintain systems that will identify legal and other requirements that apply to Perth Airport operations and keep abreast of new legislation and regulations 8. To establish and maintain environmental objectives and targets of each relevant function and level within the organisation 9. To define clear responsibilities for staff and contractors in relation to environmental management and to ensure that staff have appropriate authority and resources to effectively meet their environmental objectives. 10. To ensure that staff are aware of their environmental responsibilities by implementing appropriate training and awareness programmes for existing and new staff. 11. To ensure that procedures exist to facilitate effective internal and external communication of environmental information 12. To establish clearly defined procedures for dealing with accidents and emergency situations and to ensure that staff are adequately trained to apply these procedures 13. To maintain procedures for monitoring, measuring and auditing the key characteristics of Perth Airport s operations which could have a significant impact on the environment 14. To establish a system for investigating and documenting nonconformances and for implementing corrective and preventative actions 15. To keep environmental records in such a manner that they are legible, identifiable and traceable to the activity, product or service involved and are readily retrievable 16. To establish and maintain procedures for periodic auditing of the environmental management system, which will determine whether it conforms to planned arrangements and whether it has been properly implemented and maintained 17. For Westralia Airports Corporation senior management to carry out reviews of the environmental management system to ensure its continuing suitability, adequacy and effectiveness. WAC Enviroment Officer - Daniel Seketa 105 management actions have been identified from the commitments made, as indicated in the following table. The Airport Environment Officer (Statutory Office Holder for DoTaRS) reports performance against these actions. Westralia Airports Corporation has initiated management actions on all issues, with work conducted in 2000/ highlighted in the Status column. 1 2

3 MANAGEMENT ISSUES NO. MANAGEMENT ACTIONS STATUS Environment Strategy 1 Appoint an Environmental Officer to assist the 20/ Achievements Implementation Manager, Planning & Environment with the EO position in place (appointed December 2000). EMS implementation. Environmental Site 2 Maintain the airport Environmental Access database updated. Register Site Register for all environmental 704 flora/fauna species. issues listed in this table. 803 incidents (since 1997) Reporting 3 Produce Annual Environment Reporting. 20/ Annual Report submitted to DoTaRS before due date. Water quality 4 Consult with relevant water authorities On going. hydrology and regarding current hydrology and ground 20/ Achievements groundwater water to define responsibilities and gain Westralia Airports Corporation reference Water and Rivers Commission relevant information. Wetland Classification Maps in development and conservation projects. 5 Incorporate water sensitive design in Water Quality Monitoring Program has been refined. construction projects Independent assessment of program design and interpretation 6 Review impact of development proposals of laboratory results has been undertaken. as they occur. Drainage studies in progress for priority areas. Munday Swamp 7 Seek interest for establishment of a Protection On going Advisory Committee, funding and commitment 20/ Achievements from organizations such as the water Water Quality monitoring conducted. authorities and councils. Refer to Water Quality Monitoring section (this report). 8 Undertake baseline monitoring (eg flora, fauna, Wetland weed control maintained at Munday Swamp. water quality, water levels, sediments) and Program expanded to include watercourse. prepare a management plan. Vertebrate pest control program maintained around Munday Swamp 9 Implement management plan. 10 Review impacts of proposals in order to maintain Munday Swamp. Apron 11 Based on a risk assessment, conduct a review Complete of the refuelling apron drainage. 12 If required, implement back-up Complete containment and interceptor systems. Vehicle wash bays, 13 Based on risk assessment, identify point sources Risk analysis completed Nov 99. Main drain interceptors installed. aircraft wash areas and discharging to stormwater that require upgrade various point sources and connection to sewer. 14 Review aircraft washing practices and identify Operational developments necessitate on-going review of this commitment. the need for a dedicated aircraft wash bay that meets best practice. 15 Review all aircraft and workshop washing practices Commitments Partially complete. House keeping practices informally and ensure they follow best practice. managed by Airside Safety Officers. Stormwater Interceptor Pits capture waters 16 Ensure all tenants upgrade facilities to manage from tenant activities. Water quality monitoring may identify additional requirements pollution of stormwater. 20/ Achievements 17 Ensure all tenants are effectively managing Quarterly water monitoring program includes interceptor outflows interceptor systems to prevent pollution Tenant Audits include review of pollution prevention equipment. of stormwater. Tenant EMPs address appropriate measures taken for pollution prevention and monitoring. Spills at air 18 Prepare contingency plans. Commitments complete. Hardstand Engineering and Main Drain freight centres 19 Identify stormwater drainage improvements to Interceptors address current requirements. Tenant EMP development contain any spills. provides measures for spill control. 20 Implement any required measures. Spills containment 21 Investigate the need for a back-up system. Operational developments necessitate on-going review of this commitment. 22 Ensure all aboveground tanks, dangerous goods 20/ Achievements storage and other sources of pollution have sufficient All Westralia Airports Corporation storage tanks licenses maintained secondary containment and are appropriately managed. in accordance with DME requirements. 23 Ensure all tenants have appropriate operating All new (sub lessee) installations comply. contingency plans for spill incidents. All new developments and re-developments are subject to Tenant EMPs. 24 If required, install retaining ponds, with first flush EMPs are required to address measures taken to prevent pollution. system with macrophyte ponds, silt traps and permanently placed floating oil booms at the airport drainage outlets. MANAGEMENT ISSUES NO. MANAGEMENT ACTIONS STATUS Emergency Response 25 Review plans. On going Plans and 26 Maintain annual practical training and exercises. Aviation Crash exercises conducted annually. Contingency Plans Stormwater 27 Develop a stormwater sampling strategy and Commitments completed. regular monitoring programme at inflow and 20/ Achievements outflow locations. Monitoring database maintained. 28 Undertake and report monitoring. Independent interpretation of results undertaken. 29 Rationalise monitoring strategy and continue Sampling round recently completed. with monitoring and reporting. Contaminated sites 30 Develop a detailed contaminated sites register. Commitments partially complete. 31 Develop a risk assessment for all 20/ Achievements contaminated sites (including tenants) Environmental Site Register maintained. Currently 2 sites active to prioritise clean-up actions and plans. and undergoing remediation, 1 site to be rehabilitated pending 32 Identify clean-up liabilities on sub-leased re development issues. sites with regard to contaminated sites Working with Estate management to improve understanding of and ensure tenants are effectively management requirements for high risk leases. managing the sites. Refer to Contaminated site section (this report). 33 Review development approval conditions to incorporate more effective pollution control. Air BP Terminal Site 34 Ensure regular monitoring of Commitments partially complete. groundwater is undertaken. 35 Require tenant to undertake further investigations 20/ Achievements to determine the risk of soil and groundwater Tenant monitoring data reviewed. contamination migrating off-site via groundwater Contamination management/liaison with Air BP, Contamination not posing or open drains. high risk and BP will attempt remediation during upcoming redevelopment 36 Based on risk assessment of the site tenant to clean-up soil and groundwater contamination, if required. Underground 37 Based on risk assessment, prioritise removal of Commitments 37, 38 & 40 complete. fuel tanks underground tanks and contamination clean up. Commitments 39, Ongoing components 38 Review development approval conditions to incorporate Review of development proposals. more effective pollution control and monitoring. Maintenance of register 39 Ensure new facilities and upgrades to existing Review of Fuel inventories. facilities comply with best practice and standards. Chem-Watch database installed 40 Identify clean-up liabilities with regard to tanks. Dangerous goods survey completed. Awaiting training of OHS staff to progress 41 Maintain an accurate dangerous goods dangerous goods register, including purchasing and stock. storage register. 20/ Achievements 42 Tenants and Westralia Airports Corporation to All new developments utilise above ground tanks. maintain accurate inventory of fuel usage to Westralia Airports Corporation received Department of Minerals and Energy identify leakage. Ensure that the inventory will (DME) license for seven Class 3 underground fuel tanks. account for even small, long-term leakage of fuel. Westralia Airports Corporation fuel usage inventory records do not 43 Based on the fuel use inventory, if a leak is demonstrate leakage suspected undertake integrity testing. 44 All leaking tanks to be removed by tenants, and the site remediated to the required levels, determined by future land use. JUHI Fuel Site 45 Undertake further investigations to determine the Commitments incomplete. Ongoing component risk of soil and groundwater contamination BP conduct regular monitoring. Periodic update August migrating off-site via groundwater or open drains. BP data to be reviewed by Westralia Airports Corporation. Site remediation requirement under review. 46 Ensure regular monitoring of all groundwater is undertaken. 47 Based on risk assessment of the site, tenant to Site remediation requirement under review. clean-up soil and groundwater contamination if required. 3 4

4 MANAGEMENT ISSUES NO. MANAGEMENT ACTIONS STATUS Westralia Airports 48 Annual groundwater monitoring programme to be On going Corporation implemented to confirm long-term effects of Landfill Site the landfill. 20/ Achievements Close landfill and decommission. Existing Water monitoring continues at Landfill areas. excavations filled in, capped and site levelled. McComb Road 49 Undertake further investigations to determine the Commitments incomplete. Fuel Depot risk of soil and groundwater contamination Ongoing Component migrating off-site via groundwater or open drains. Water Quality monitoring 50 Based on risk assessment of the site, clean-up soil Review pending change in land use. and groundwater contamination. 20/ Achievements Water monitoring continued. Newburn Road Liquid 51 Further investigations dependent on future land Dependant on future land use (TBA) Waste Site use and potential risks. Currently advising Estate Management and Property Development Philip's Road Liquid 52 Further investigations dependent on future land departments re Contaminated Sites Legislation. Waste Site use and potential risks. Shell Service Station 53 Ensure Shell is fully briefed on the previous 20/ Achievements investigations undertaken and conclusions made Refer contaminated sites section (this report). at the site. 54 Ensure Shell undertake further investigations to ensure off-site migration of groundwater contamination is prevented. Rescue and Fire 55 Seek regular reports from the RFFS regarding status 20/ Achievements Fighting Service of contamination management and ensure the Training Ground pad removed, Contaminated soil removed and validated RFFS is effectively managing the risk of off-site clean fill introduced. contamination migration. Interceptor use discontinued. Air Quality 56 Undertake an airports emission inventory. 20/ Achievements Management Plan 57 Undertake limited air quality monitoring with mobile National Pollutant Inventory reporting assessment completed for 20/. station to establish the existing air quality at the airport Full list of 90 substances assessed, WAC expect to trigger and report on in relation to the air quality in the Perth air shed. Volatile Organic Compounds (VOCs) emissions. 58 Prepare management plan to identify areas where Refer to NPI section (this report) airport air pollution contributions can be minimised. 59 Implement recommended management actions. Noise Management 60 Modify the Westralia Airports Corporation's contract In Progress Plan for on-airport conditions and development approval conditions on noise sources construction activities to control noise emissions. 61 The Westralia Airports Corporation will convene the Complete Perth Airport Noise Management Committee and consider ground running as part of its charter. 62 Prepare management plan for on-airport noise Complete sources (including airport ground running, operation of aircraft auxiliary power units and construction noise) taking into account financial justification. Flora and fauna 63 Restrict public access by controlled access barriers. 20/ Achievements Fencing requirements have been assessed periodically throughout the year. Capital expenditure requirements for fencing program. 64 Continue exclusion of grazing in wetlands. Ongoing. 65 Prevent spread of introduction of weed species and 20/ Achievements fungal diseases by controlling access to bushland Track rationalisation plan complete. areas. Ensure vehicles and machinery are 'clean' Works program developed prior to mobilisation into areas. 66 Rationalise fire access tracks, and rehabilitate tracks not required. Heritage and 67 Undertake Archaeological surveys and update the 20/ Achievements Native Title register of known archaeological sites as required. PERCOW applications involving earthworks carry a condition of supervising 68 Prepare a heritage protection plan for all projects works to identify potential artefacts. including a watching brief to be applied to all earthwork operations. MANAGEMENT ISSUES NO. MANAGEMENT ACTIONS STATUS Energy and 69 Conduct energy audit of terminal building. To be included in terminal development proposal Non-renewable 70 Encourage airlines to undertake similar energy Ongoing Resources audits for the domestic terminals. 71 Implement recommendations where Ongoing financially justified. 72 Encourage provision of alternative energy sources Ongoing such as natural gas. 73 Encourage WA government to provide improved Member of Transport Foundation public transport. Waste 74 Survey tenants to ensure that all liquid waste Complete producing sites are registered with DEP. 75 Ensure tenants upgrade their recycled oil On-going. Audit program to identify additional upgrades. storage facilities. 20/ Achievements All 20/ developments have H/C storage areas according to DME standards as well as registration with DEP Waste Track program as required. 76 Ensure PCB storage facilities are improved to fully Complete comply with the Department of Minerals and Energy Requirements. Prepare and Implement 77 Prioritise Land Use Zones, prepare EMPs, and LMP initiatives have been engaged over the PIA estate. EMP for each Land consult with authorities and implement. Refer to Land management section (this report). Use Zone EMP's will include management of: Activities conducted in 20/ Significant remnant areas, rare and endangered Wetland weed control maintained species and their habitat, trail bike and four-wheel- Priority weed control maintained (Landside) driving, revegetation, firebreaks, weeds, dieback, Vertebrate pest control maintained (Landside & Airside) feral animals, rubbish dumping, community group Bushland rubbish collection maintained (Landside) involvement, and report annually on the status Removal of abandoned vehicles from bushland (landside) of implementation. Fencing and signage program Zone 1, Precinct 7 78 Commence negotiations with WA Government on Complete possibilities for transferring responsibilities for management of area. 79 Close-off tracks revegetate and erect barriers to Plan Complete. Implementation pending resolution of trespass issues. prevent public access. 80 Complete EMP. LMP initiatives have been engaged over the PIA estate. Refer to Land management section (this report). Activities conducted in 20/ Wetland weed control maintained Priority weed control maintained (Landside) Vertebrate pest control maintained (Landside & Airside) Bushland rubbish collection maintained (Landside) Removal of abandoned vehicles from bushland (landside) Fencing and signage program 81 Consult with CALM regarding the feasibility of Complete reintroducing the Western Swamp Tortoise. 82 Consult with Aboriginal Groups, Universities and 20/ Achievements Museum to decide how to sensitively interpret Consultation has commenced with Department of Indigenous Affairs to Aboriginal history and culture. develop a consultative process with indigenous stakeholders regarding interpretation of cultural history. 83 Negotiate research projects with WA Universities to Under review advise on means to enhance and extend habitats for rare and endangered species. 84 Commence pilot studies. Implement large-scale Under review improvements over following three years. 5 6

5 MANAGEMENT ISSUES NO. MANAGEMENT ACTIONS STATUS Zone 1, Precinct 5 85 Close off tracks, revegetate and erect barriers to 20/ Achievements prevent public access. LMP initiatives have been engaged over the PIA estate. 86 Complete EMP. Refer to Land management section (this report). 87 Ensure that development works do not affect the Activities conducted in 20/ Aboriginal site in the area. Wetland weed control maintained Priority weed control maintained (Landside) Vertebrate pest control maintained (Landside & Airside) Bushland rubbish collection maintained (Landside) Removal of abandoned vehicles from bushland (landside) Fencing and signage program Zone 2, Precinct 1 88 Survey land use area and identify those areas of In progress vegetation and wetlands, which should be retained 20/ Achievements as part of any future development. LMP initiatives have been engaged over the PIA estate. Prepare landscape guidelines. Refer to Land management section (this report). Activities conducted in 20/ Wetland weed control maintained Priority weed control maintained (Landside) Vertebrate pest control maintained (Landside & Airside) Bushland rubbish collection maintained (Landside) Removal of abandoned vehicles from bushland (landside) Fencing and signage program 89 Complete EMP. In progress Zone 2, Precinct 2 90 Survey land use area and identify those areas of In progress vegetation and wetlands, which should be retained 20/ Achievements as part of any future development. LMP initiatives have been engaged over the PIA estate. Prepare landscape guidelines. Refer to Land management section (this report). 91 Complete EMP. Activities conducted in 20/ 92 Ensure that development works do not affect the Wetland weed control maintained Aboriginal site in the southwest of airport. Priority weed control maintained (Landside) 93 Ensure that the recommendations by CEPA for Vertebrate pest control maintained (Landside & Airside) the Business Park PER are adopted. Bushland rubbish collection maintained (Landside) Removal of abandoned vehicles from bushland (landside) Fencing and signage program Zone 2, Precinct 6 94 Survey land use area and identify those areas of In progress vegetation and wetlands which should be retained 20/ Achievements as part of any future development. LMP initiatives have been engaged over the PIA estate. Prepare landscape guidelines. Refer to Land management section (this report). 95 Complete EMP. Activities conducted in 20/ Wetland weed control maintained Priority weed control maintained (Landside) Vertebrate pest control maintained (Landside & Airside) Bushland rubbish collection maintained (Landside) Removal of abandoned vehicles from bushland (landside) Fencing and signage program Zone 2, Precincts 3 & 4 96 Survey land use area and identify those areas of In progress vegetation and wetlands which should be retained 20/ Achievements as part of any future development. LMP initiatives have been engaged over the PIA estate. Prepare landscape guidelines. Refer to Land management section (this report). 97 Complete EMP. Activities conducted in 20/ Wetland weed control maintained Priority weed control maintained (Landside) Vertebrate pest control maintained (Landside & Airside) Bushland rubbish collection maintained (Landside) Removal of abandoned vehicles from bushland (landside) Fencing and signage program MANAGEMENT ISSUES NO. MANAGEMENT ACTIONS STATUS Vegetation retention 98 Prepare development guidelines for commercial In progress developers, which clearly define approach to design of site layout, provision of buffers, retention of uncleared sections of vegetation and in particular large trees. Guidelines to be prepared in consultation with CALM. 99 Survey airport site and prepare a plan identifying trees that provide roosting and nesting sites for Carnaby's Black Cockatoos. Require commercial developers to retain these trees wherever feasible. If trees have to be removed the landscaping plan should provide for replanting providing air safety is not compromised. Rare and Endangered 100 The Westralia Airports Corporation to create In progress flora and fauna Northern and Southern Conservation Areas. 20/ Achievements 1 Prepare brief for a survey to update status and LMP initiatives have been engaged over the PIA estate. mapping of rare and endangered flora and fauna. Refer to Land management section (this report). 1 Seek comment from CALM and conservation groups. Activities conducted in 20/ 103 Update baseline surveys over next three years to Wetland weed control maintained determine spatial abundance, movement, seasonal Priority weed control maintained (Landside) variation, reproduction, feeding, habitats, and Vertebrate pest control maintained (Landside & Airside) threats to the rare and endangered species. Bushland rubbish collection maintained (Landside) 104 Incorporate information into EMP's for each Removal of abandoned vehicles from bushland (landside) Land Use Zone. Fencing and signage program Minimise impacts of 105 Impose limits on number of stock per hectare of In progress agricultural activities leased area, review use and application rates for fertilisers, herbicides, service potential for introduction of weeds and impacts of nutrients on wetlands. NATIONAL POLLUTANT INVENTORY The National Pollutant Inventory (NPI) is a regulatory requirement, applicable to all companies and sites that handle more than a specified quantity of an NPI substance, to report the total emissions of that substance. The NPI is the first National Environmental Protection Measure (NEPM) made by the National Environmental Protection Council (NEPC) and is similar to the: United States Toxic Release Inventory (TRI) United Kingdom Chemical Release Inventory; and Canadian National Pollutant Release Inventory (NPRI). One of the major objectives of this type of reporting is to provide an effective means of identifying opportunities for pollution prevention, with potential savings for industry through resource efficiency. Category thresholds trigger the requirement for a facility to report emissions of any of the 90 listed NPI substances. There are 5 categories that address direct use of a substance fuel, electricity consumption and nutrient release. Note: This is the first year Airports have been required to report against all 90 NPI listed substances. Assessment of WAC data has demonstrated that no threshold limits were exceeded for the / period and that there was no reporting requirement to the Department of Environment and Water Catchment Protection. The department has been notified accordingly. In previous reporting periods WAC triggered Total Volatile Organic Compounds (TVOC's) through the consumption and storage of petrol and diesel on site. However TVOC's were not on the reporting list until this year. Total VOC's have not been triggered for the current reporting period due to a change in the amount of Diesel and unleaded petrol used on site. Overall WAC's diesel usage did increase, however, unleaded petrol usage decreased. As unleaded petrol is a greater contributor to volatile organics, it therefore follows that using less of it will result in lower general emissions. WAC will continue monitoring it's usage of materials containing NPI substances (particularly diesel and petrol), as there is potential for TVOC's to be triggered in future years. 7 8

6 COMPLIANCE Westralia Airports Corporation is subject to a number of State and Commonwealth environmental regulations. No prosecutions or fines were issued against Westralia Airports Corporation during the 20/ year. INCIDENTS Westralia Airports Corporation and its tenants have a diverse range of obligations, including legislation, licence and lease conditions and permits to commence works and development approvals. The following data has been sourced from information recorded by WAC Airport Operations Officers during their normal course of duties and from the Environmental Officer. Westralia Airports Corporation categorises incidents into four levels ranging from level 1 (technical non-compliance with lease, regulations etc) that do not involve a direct impact on the environment, through to level 4 incidents which result in serious long term environmental consequences. Approximately 174 incidents were reported or detected by monitoring during the 20/ reporting period and will be presented below under their respective headings. LEVEL 1 (Technical issues not involving a direct impact on the environment ie. failure to submit a report to government on time) (0) There were no level 1 incidents at Perth Airport for the 20/ year. LEVEL 2 (Minor near-miss incidents that do not have a direct impact on the environment ie fuel spills on the apron) (115) 113 Spill reports were submitted by Airport Operations for the period totalling 2455 litres, this compares with 121 reports and 1984 litres from the previous year. All fuel and oil spills occurred on sealed areas of the aerodrome and are tabled below in detail. None of the reported spillages have caused soil contamination or have entered the drainage systems of the aerodrome. 2 sewage spills were recorded as having occurred during the period, both spills were minor (<30lts) and no effluent was recorded as contaminating soil or drainage systems. In both instances the responsible agent and ARFFS treated the areas. Litres COMBINED FUEL AND OIL COMPARISON No of Spills Jul Aug Sep Oct Nove Dec Jan Feb Mar Apr May Jun Total Litres 00/ Total Litres / Spills 00/ Spills / COMBINED FUEL AND OIL COMPARISON Volume (Litres) 00/ / % Change Combined Fuel/Oil % + Fuel % - Oil % + No of Spills Combined Fuel/Oil % - Fuel % - Oil % Litres FUEL SPILLS 20/ MAJOR FUEL SPILL SUMMARY (SPILLS > 100LTS) Date Amount Company A/C Reg. 07 Dec 100 South African Airways ZS-SAL 30 Dec 100 South African Airways ZS-SAJ 20 Dec 190 South African Airways ZS-SPE 28 Dec 160 South African Airways ZS-SPC 06 Feb 100 Independent Air Freight VH-RMX Litres Jul Jul Aug Aug Sep Fuel (litres) Sep Oil (litres) Quantity/No of Spills (Actual) Oct Oct Nov OIL SPILLS 20/ Nov Dec Dec Jan No of Spills Jan No of Spills Feb Feb Mar Quantity/No of Spills (Actual) Mar Apr Apr May May No of Spills 10 Jun Jun No of Spills MAJOR OIL SPILL SUMMARY (SPILLS > 100LTS) Date Amount Company A/C Reg. 22 Oct 200 Qantas Ramp Services JCPL#4 14 Nov 100 Qantas Ramp Services JCPL#3 7 Mar 200 Qantas Ramp Services JCPL#3 15 Apr 100 Qantas Ramp Services JCPL#4 5 Jul 110 QFCL Hi-Lift#8 LEVEL 3 (Incidents resulting in a short-term impact on the environment) (61) General Security - Environmental NB: The following figures are based on reports submitted by WAC Airport Operations Officers who operate exclusively on the airside of the aerodrome. The figures provided do not include incidents that are recorded by other sources and may differ significantly to actual occurrences of Unauthorised Dumping and Trespass. Unauthorised Dumping Unauthorised dumping records the number of incidents involving the abandonment of stolen or unidentifiable (owner) vehicles located in restricted areas of the airport grounds. In the majority of cases the vehicles concerned have been destroyed by fire. Those vehicles set alight are recorded under Abandoned Vehicles and are also recorded as separate incidents under Fire Reports. Instances of Other refer to the illegal dumping of waste, both domestic and commercial on airport property that is reported by Airport Operations. Trespass Trespass records the reported occurrences of unauthorised persons/vehicles witnessed trespassing on airport property, not including access to the Security Restricted Area. Fire Reports Fire reports include fires that have allegedly been caused by vandals destroying vehicles on airport property and may include other occurrences of arson and/or acts of nature. For the purposes of this report occurrences of landside fires have been categorised as Vehicle or Scrub. Scrub fires that have been ignited due to a vehicle fire are recorded as separate incidents within the table GENERAL SECURITY INCIDENTS Unathorised Tresspass Landside Dumping Fire Reports Abandoned Other Persons Vehicles Vehicle Scrub Vehicles Fires Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total LEVEL 4 (Incidents resulting in potentially serious consequences and/or a long term impact on the environment) (0) There were no level 4 incidents at Perth Airport for the 2000/ year. WATER QUALITY MONITORING Westralia Airports Corporation implemented a quarterly surface water monitoring program of 21 sampling sites in December The program has since been modified to include the most suitable surface water sites, and also includes quarterly sampling and monthly water level gauging of groundwater monitoring bores. Under the current water quality-monitoring program, samples are collected for analysis from 12 surface water sites and 23 groundwater monitoring bores on a quarterly basis. The objectives of the monitoring program are as follows: To determine any impact the operations of Perth Airport may have on the receiving environment; and, To identify any operations or activities on the airport lease that may be contributing to pollutant levels in excess of the accepted limits for water pollution, under the Airports (Environmental Protection) Regulations, WATER MONITORING LOCATIONS Water Monitoring Site

7 HYDROGEOLOGY Perth Airport is largely underlain by unconsolidated sediments of the Pleistocene Bassendean Sands, which in turn overly the sands, silts, and clays of the Guildford Formation. The Bassendean Sand consists of fine to medium grained light grey quartz sand, which is moderately sorted with generally sub-rounded grains. The underlying Guildford Formation consists of brown silty and slightly sandy clays. Groundwater occurs within both the Bassendean Sands and the Guildford Formation. An unconfined seasonal aquifer forms within the Bassendean Sand in response to infiltrating rainfall. The higher clay content of the underlying Guildford Formation limits further downward percolation resulting in the saturation of the overlying sand. Recharge of the Guildford Formation is highly variable reflecting variations in lithology. Groundwater flow is generally from southeast to northwest towards the Swan River. SURFACE WATER HYDROLOGY Surface water flow at Perth Airport is generally from east to west via two artificial drainage courses, the Northern Main Drain (NMD) and the Southern Main Drain (SMD). The NMD and SMD can be assessed as separate systems. Water enters the NMD from Munday Swamp, which is in turn fed by High Wycombe Branch Drain and the Macao Road Branch Drain, draining surface and storm water from the residential area of High Wycombe. Surface water in the NMD exits the Perth Airport via a culvert under the Great Eastern Highway Bypass, where it enters the Swan River a short distance away. The SMD is fed by the Crumpet Creek Catchment and discharges near the turn off from Great Eastern Highway to the Domestic Terminal. Additionally, a number of seasonal wetlands and damp lands exist in the area of the future parallel runway, 03R/21L, which are fed by water from the Poison Gully Catchment via the Poison Gully Branch Drain. There is no identified offsite discharge from these wetlands and damp lands and surface water is most likely lost by a combination of evaporation and infiltration into the Bassendean Sands. SAMPLING METHODOLOGY Four sampling rounds have been carried out during the reporting period. A number of surface water monitoring sites could not be sampled during the summer rounds as they were dry. Groundwater samples were collected according to Australian/New Zealand standard AS/NZ :1998 Water Quality - Sampling, Part II: Guidance on sampling of ground waters. Samples were collected following the purging of five bore volumes. Groundwater parameters (conductivity, redox potential, temperature and TDS) were recorded during the purging process to verify that the bore has stabilised and that the sample collected is representative of the water within the aquifer. Surface water samples were collected according to Australian/New Zealand standard AS/NZS :1998 Water Quality - Guidance on sampling of rivers and streams. Where possible, samples were collected from the centre of the flow channel, following the recording of surface water parameters (conductivity, redox potential, temperature and TDS). RESULTS AND DISCUSSION The guidelines for the water quality at the Perth Airport site are referenced from the Airports (Environment Protection) Regulations - Schedule 2, Sub Regulation 2.03 (3) and Paragraph 4. (a), Water Pollution - Accepted Limits. The dominant groundwater flow direction is from the east of the airport site towards the Swan River in the west. Despite the presence of sandy silts and clays of the Guildford Formation in the northeast of the site, there does not appear to be any distinct hydrogeological domains within the site. The following observations have been made using the laboratory analysis results for the groundwater samples collected quarterly during the review period: The groundwater at the airport site is generally fresh. Laboratory analysis returned TDS results of mg/l, and slightly basic to slightly acidic ph. The concentrations of heavy metals and nutrients show a seasonal fluctuation. Both heavy metal and nutrient concentrations were found to be significantly higher during the summer months (December and March) than in the winter months (June and September). Minor exceedences of lead, zinc and copper are observed in all bores during the summer months and are generally below the limits of detection during the winter months. Arsenic was detected in the majority of groundwater monitoring bores on the airport site, although exceedences occurred only in bores 15 and 17, both of which are adjacent to fuel bowsers. Nutrients (nitrogen and phosphorous) were detected at concentrations above the referenced guidelines at all sites tested on the airport site for the review period, as consistent with historic trends. The high nutrient levels are most likely a function of the regional catchment and groundwater conditions and cannot be attributed to a single point source, either inside or outside the airport site boundary. The exceedences of heavy metals and nutrients are a function of the regional groundwater and catchment conditions. Groundwater and surface water studies carried out on other sites in the vicinity exhibit the same trends as is witnessed at the Perth Airport site and the exceedences are indicative of the regional groundwater and catchment conditions rather than site-specific impacts. Exceedences of sodium are observed during the review period in bores 8 and 21. Sodium was detected in Bore 8 at a maximum of 280 (g/l and in Bore 21 at a maximum of 220 (g/l. Bore 15, located next to the fuel bowsers on McCombe Road, showed an exceedence of Arsenic by more than 10 times referenced guidelines. Arsenic was detected in Bore 15 at 570 (g/l. Site 17, located at the former Shell Service Station on Brearley Avenue, shows historical exceedences in arsenic, surfactants, and hydrocarbons. Shell Oil completed decommissioning and environmental remediation works at the service station site in March 20, including the removal of all underground storage tanks, associated pipe work, bowsers, signs and impacted soil. A dissolved phase hydrocarbon plume was discovered to extend 120m to the north west of the site. The plume is expected to naturally attenuate through biodegradation and solute dispersion processes. Free phase product was present in Bore 17 during each of the quarterly sampling rounds, except in the June round. A passive hydrocarbon skimmer was installed in the bore by Shell between March and June, which has eliminated free product at the surface of the bore, and has reduced heavy metals and hydrocarbon concentrations to levels at or below the limits of detection. Arsenic was detected in Bore 17 at 94 (g/l in March. SURFACE WATER Northern Main Drain (NMD) Surface water enters the NMD from Munday Swamp, which is in turn fed by the High Wycombe Branch Drain and the Macao Road Branch Drain. Water quality is monitored along the length of the NMD at the following points: The High Wycombe Branch Drain (point 27); The Macao Road Branch Drain (point 28); The discharge from Munday Swamp into the NMD (point 29); The culvert under the airside access road (point 35); and, The culvert under Great Eastern Highway Bypass where water exits the airport site (point 26). SITE 28 SITE 29 SITE 35 SITE 26 The quality of the water in the NMD shows a general seasonal fluctuation; the electrical conductivity was highest during the December sampling round during the summer months, and was the lowest during the June sampling round following a series of winter rainfall events. The electrical conductivity of the water in the NMD generally remains consistent throughout its length. The quality of the water entering the NMD from the High Wycombe and Macao Road Branch Drains is relatively clean and of similar hydrochemistry, containing concentrations of phosphorous, nitrogen, lead, zinc and nickel that exceed the referenced guidelines. Monitoring points 28 and 29 are often dry or stagnant during the summer months, providing an opportunity for analytes to concentrate through evaporation. The overall quality of the water in the NMD generally remains consistent throughout its length. Fluctuations in water chemistry are observed in almost all monitoring points in the NMD and are considered to be a function of seasonal variations. The exceedences of the referenced guidelines are consistent with those observed in the groundwater monitoring bores, indicating that groundwater and surface water hydrochemistry are directly related. Southern Main Drain (SMD) Surface water enters the SMD from the Crumpet Creek Catchment. Water quality is monitored along the length of the SMD at the following points: At the eastern most point of the airport where water enters the SMD (point 31); The culvert at the eastern edge of Horrie Miller Drive (point 32); The culvert at the western edge of the airside Southern Link Road (point 33); Above the Belmont storm water inflow (point 36); Above the discharge from the interceptor trap (point 34); and, At the culvert under Brearley Avenue where water exits the airport site (point 24). SITE 24 SITE 32 SITE 36 SITE

8 The quality of the water in the SMD also shows a general seasonal fluctuation; the electrical conductivity was highest during the March sampling round at the end of the summer period, and was the lowest during the June sampling round following a series of winter rainfall events. The electrical conductivity of the water in the SMD increases slightly with distance towards the west. Water entering the SMD is relatively clean, and no significant concentrations of surfactants or hydrocarbons have been detected during the reporting period. Heavy metals have generally not been detected. However, concentrations of lead and zinc were found to exceed the referenced guidelines throughout the entire length of the SMD during the March sampling round, consistent with trends observed during the summer months in groundwater monitoring bores and in the NMD. Water exiting the airport site in the SMD is of comparable quality to the water entering the SMD. Concentrations of surfactants, zinc, copper, lead, and hydrocarbons are generally slightly lower at the point of exit from the airport site (point 24), while concentrations of sodium, potassium, chlorine, sulphate, fluorine, nutrients and the electrical conductivity tend to be slightly higher at the point of exit. However, it is noted that the variations in analyte concentrations are subtle and may be a function of temporal and spatial distribution. Poison Gully Branch Drain Samples of water in the Poison Gully Branch Drain are collected from surface water monitoring point 30, where water flows into seasonal wetlands and damp lands in the vicinity of the future parallel runway 03R/21L. The general hydrochemistry of the water draining from the Poison Gully Catchment is similar to that of the water entering the northern and southern main drains. As for the SMD and the NMD, the Poison Gully Branch Drain shows temporal variations in the concentrations and exceedences of nitrogen, phosphorous, zinc, and lead. ACCEPTANCE CRITERIA AND LABORATORY DETECTION LIMITS Surface water and groundwater at Perth Airport is assessed under the guidelines set in the Airports (Environment Protection) Regulations - Schedule 2, Sub Regulation 2.03 (3) and Paragraph 4. (a), Water Pollution - Accepted Limits. The contaminant acceptance criteria, where specified, are listed in the table below. CONTAMINANT ACCEPTANCE CRITERIA Analyte Units Acceptance Limits of Criteria Detection Heavy Metals Pb (ug/l) Zn (mg/l) Cu (mg/l) Ni (mg/l) Cd (ug/l) Cr (mg/l) As (ug/l) Hg (ug/l) Surfactants MBAS (mg/l) < Hydrocarbons C6-9 mg/l C10-14 mg/l C15-28 mg/l 0.05 C29-36 mg/l 0.05 Nutrients Total P (mg/l) 0. - Total N (mg/l) Basic and Major Ions TDS (Grav) (mg/l) Na (mg/l) NO3 (mg/l) NO2 (mg/l) 3 1 Fe (mg/l) 1 - The acceptance criteria levels for zinc, copper and surfactants are below the limits of laboratory reporting, thus any sample analysed is potentially exceeding the referenced guidelines. Expensive laboratory analysis methods are required to achieve detection of these analytes at concentrations below the current detection limits. It is not perceived that this additional expenditure will improve the ability of Westralia Airports Corporation to manage pollution risks. Additionally, the surface water and groundwater entering the Perth Airport site is of significantly lower quality than that assumed by the referenced guidelines. Background concentrations of nitrogen, phosphorous, lead, zinc and copper in surface water and groundwater frequently exceed the referenced guidelines. The purpose of the water quality-monitoring program is to determine the impacts on the Perth Airport site, and potential offsite receptors, resulting from the airport operations and leaseholders. The majority of exceedences of the referenced guidelines are present as a function of the regional groundwater and surface water catchment conditions, particularly during the summer months as low rainfall and high evaporations rates concentrate analytes already present in the surface water and groundwater. It is recommended that monitoring data be assessed according to background trends, and site-specific guidelines be established for the Perth Airport site, in the form of a local standard under Section 5.. (3), Airports (Environment Protection) Regulations). Site-specific guidelines should take into account the regional catchment conditions, and seasonal variations, and will provide a more comprehensive assessment of the impacts to the Perth Airport site. The current monitoring program and record of historic data is considered sufficient to implement a local standard for Perth Airport. However, data should continue to be collected to support background trends and catchment conditions. MONITORING PROGRAM RECOMMENDATIONS The monitoring program is considered sufficient to adequately assess the impacts resulting from the airport operations and leaseholders. The ongoing collection of data will further assist in the understanding of the hydrogeology and surface water hydrology, and in establishing trends and background conditions relating to the Perth Airport site. However, the following recommendations will maximise the effectiveness of the current monitoring program: Groundwater monitoring bores 1, 2, 11, 16 and 18 should be reinstated as effective data collection points that allow sampling and water level monitoring; and, Flow meters should be installed at one of the existing weirs in each of the NMD and SMD to provide volumes of surface water flow through the site, and enable calculations of analyte loading to the airport site and offsite receptors, e.g. the Swan River. AIRCRAFT NOISE MANAGEMENT NOISE MANAGEMENT STRATEGY COMMITTEE Aircraft noise management is administered through the Noise Management Strategy Committee, which meets quarterly to implement and monitor the Airport Noise Management Strategy. The Noise Management Strategy Committee includes representatives from WAC, State and Local Government, State and Commonwealth Government departments, Federal Members of Parliament, airlines and community groups. During the past year the Committee worked closely with the Western Australian Planning Commission to develop a draft Statement of Planning Policy for land use planning in the vicinity of Perth Airport. Produced by WAC and included in this policy, is a revised Australian Noise Exposure Forecast (ANEF) plan for the longterm airport capacity of 350,000 aircraft movements. NOISE AND FLIGHT PATH MONITORING SYSTEM Airservices Australia continues to operate their Noise and Flight Path Monitoring System (NFPMS) at Australia s major airports. Operated from a single control centre, the system monitors aircraft operations and their environmental effects at airports across Australia. The Perth component of the NFPMS has four permanently installed Noise Monitoring Terminals located at Cannington, Redcliffe, Greenmount and Guildford. The system displays in real time the noise levels being measured by each of the terminals and the flight tracks of the aircraft in the vicinity of the airport. Apart from measuring aircraft noise, the terminals also continuously monitor background noise levels. AIRCRAFT NOISE COMPLAINTS Airservices Australia received 223 noise complaints in relation to aircraft flight operations at Perth Airport during 20/, which is an average of 18.6 per month. This compares to 210 aircraft noise complaints in the previous year, as shown in the table below. AIRCRAFT NOISE COMPLAINTS Year Aircraft Noise Monthly Complaints Average 1997/ per month 1998/ per month 1999/ per month 2000/ per month 20/ per month 13 14

9 Number of Complaints Jul Aug MONTHLY NOISE COMPLAINTS Sep Oct Nov Dec Mar Apr 20/ 2000/ 1999/ / /98 May The above graph shows a dramatic reduction in complaints per year since 1998/99. This is largely brought about by the decline of media interest in the Master Plan since that year and lack of negative campaigning which directed public awareness to aircraft noise issues. AIRCRAFT ENGINE GROUND RUNNING On-site aircraft noise arising from operations such as ground running is managed through the aircraft engine ground running management plan. Restrictions are set out in the plan as to the time and power settings as well as the locations for engine ground running. The total number of engine ground runs increased from 789 in 2000/ to 1382 in 20/, an increase of 75%, while the number of community complaints only increase from 12 to 14 over the same period. There were 14 dispensations granted for ground runs in 20/ outside the restrictions. Feb AIRCRAFT NOISE INFORMATION The ANEF system that is used as the planning tool for land use planning in the vicinity of airports has been established for some time. While still being the recognised land use planning tool, this method of showing noise exposure contours has significant limitations in assisting the community to understand how aircraft noise directly affects them. New ways are therefore being adopted to give communities more meaningful aircraft noise information. Jan Jun there is a natural variation in the location of flight paths around a core track. The maps also indicate the height of aircraft. Each plotted track is an actual aircraft operation. These maps have been produced using data from Airservices Australia s Noise and Flight Path Monitoring System. Track Density Plots A total of four maps have been produced showing the first quarter and third quarter of a year for all aircraft operations and jet operations only. These plots provide information on the density of over flight activity for an extended period. These track density plots have been produced using data from Airservices Australia s Noise and Flight Path Monitoring System. Flight Path Movements A flight path movements chart is shown, for jet operations. This map shows a picture of the aircraft distribution and is produced from actual aircraft movement data for the year 20. In particular, the chart shows that aircraft do not all follow the same track but tend to spread to generate distinct flight path zones. For many suburbs aircraft overflight activity varies widely from day to day according to which runways are being used (runway use is primarily dictated by wind conditions). The chart therefore contains, in addition to average day information, data on the busiest and quietest days to give an indication of how aircraft movements varied during 20. Respite Hours A chart is shown for jet operations. The chart gives an indication of the extent to which different areas around the airport got breaks from aircraft movements for the year 20. The chart reports respite by showing the proportion of hours during which there were no jet aircraft movements on each of the flight paths. For example, if the respite on a particular flight path is reported as 50%, it means that for 50% of the clock hours during the period covered by the chart there were no movements on that flight path. AUSTRALIAN NOISE EXPOSURE INDEX (ANEI) 20 The following drawings published in this report are based on actual aircraft movement data. Australian Noise Exposure Index (ANEI) The ANEI drawing for the year 20, shows noise exposure contours at 5 ANEI intervals between 20 and 40 ANEI. The drawing is based on actual aircraft movement data and shows the average daily aircraft noise exposure around the airport for that year. ANEI drawings are used principally as indicators of change of aircraft noise exposure. Flight Path Maps A total of eight maps have been produced showing typical weeks from the first quarter and third quarter of a year for both arrivals and departures of jet and non-jet aircraft. The flight paths used by aircraft can vary significantly between the summer and winter months because of the different wind directions. These maps gives a good picture of the typical spread of flight paths and shows that N70 Contours The N70 contour map summarises single event data for the year 20 and shows the whole of airport situation of single event aircraft noise patterns. The noise contours indicate the number of aircraft noise events louder than 70 db(a) (decibels) which occurred on the average day for the year 20. An aircraft noise event of 70 db(a) is one that is likely to disturb conversation, interfere with watching television or using the phone whilst inside a house with open windows. Measured N70 Chart The measured N70 chart reports the actual average number of noise events per day recorded around the airport. This contrast with N70 contours which are generated by computer modelling. The data used to produce the measured N70 chart is from the Airservices Australia s Noise and Flight Path Monitoring System for the year 20. LEGEND 40+ ANEI ANEI ANEI ANEI ANEI 15 16

10 FLIGHT PATH MAPS FLIGHT PATH MAPS Track plots coloured by height for jet arrivals during the period 2/3/20 to 8/3/20. Track plots coloured by height for non-jet and helicopter arrivals during the period 2/3/20 to 8/3/20. Track plots coloured by height for jet arrivals during the period 2/9/20 to 8/9/20. Track plots coloured by height for non-jet and helicopter arrivals during the period 2/9/20 to 8/9/20. Track plots coloured by height for jet departures during the period 2/3/20 to 8/3/20. Track plots coloured by height for non-jet and helicopter departures during the period 2/3/20 to 8/3/20. Track plots coloured by height for jet departures during the period 2/9/20 to 8/9/20. Track plots coloured by height for non-jet and helicopter departures during the period 2/9/20 to 8/9/

11 TRACK DENSITY PLOTS JET FLIGHT MOVEMENTS 1 Jan 20 to 31 Dec 20, All Jets MEASURED N70 CHART Average number of events per day at and above 70 db(a) 1 Jan 20 to 31 Jan 20 for All Aircraft Types (Total events = 4,296) Track density plot for all aircraft operations during the first quarter 20. Track density plot for all aircraft operations during the third quarter 20. Total number of aircraft movements = 48,597 Note: Track H includes all arrivals to Runway 03 from the east and all departures from Runway 21 to the east. Track A is tracks B and C combined. Similarly, track F is tracks G and H combined. JET AIRCRAFT RESPITE HOURS 1 Jan 20 to 31 Dec 20, All Jets Morning: 05:00 to 07:00 Daytime: 07:00 to 20:00 Evening: 20:00 to 05:00 Night: 23:00 to 05:00 (in the same day) Track density plot for jet operations only during the first quarter 20. Track density plot for jet operations only during the third quarter 20. Total number of aircraft movements = 48,597 Note: As above A respite hour is a whole clock hour when there are no jet movements. Morning: 05:00 to 07:00 on week days Daytime: 07:00 to 19:00 on week days Evening: 19:00 to 05:00 on week days Weekend: 05:00 to 23:00 on weekends 19 20

12 ANNUAL AVERAGE DAY N70 FOR 20 CONTAMINATED SITES AUSTRALIAN GOLD REFINERIES (AGR) During the 20/ year, investigations continued and subsequently AGR have completed a Risk Assessment Study to address the environmental impact from identified groundwater and surface water contamination associated with the Newburn Refinery operation. This study comprised the following elements: 1. Groundwater and Surface Water Monitoring Review: April 2000 to January Surface Water Management Plan 3. Ecological Risk Assessment 4. Southern Main Drain Study 5. Southern Main Drain Sediment Re-Sampling Exercise 6. Groundwater Numerical Model 7. Eco-toxicological Study 8. Year-End Monitoring Review, 1998 to April 20 The risk assessment expands on previous investigations undertaken by AGR s consultants between May 2000 and October 20. The principle conclusions and recommendations arising from each element of the risk assessment study are summarised below. A plume of groundwater contamination, comprising elevated metal concentrations and acidity extends approximately 480m north and northwest of AGR. Groundwater contamination has arisen mainly via leakage from underground effluent storage. Measures to reduce effluent leakage rates have been partially successful. The contaminant plume is impacting surface water quality within the Southern Main Drain. Surface water run-off from the site is contaminated, and also impacts drain water quality to an unknown degree. The Southern Main Drain is not pristine, and is subject to other sources of contamination both up flow and down flow of the AGR operations. Freshwater aquatic and irrigation water environmental values potentially applicable to the SMD are impacted in the immediate vicinity of the plant. Groundwater from the plume is unsuitable for irrigation purposes. Ecological risk assessment has identified the main receptors within the SMD as aquatic fauna and flora. A higher level of ERA is recommended in the event that no remedial action is undertaken. Sediments within the Plant Open Drain contain metal concentrations in excess of applicable trigger level and healthbased investigation levels. Sediments within the SMD contain elevated metal concentrations at the groundwater plume discharge area. Eco-toxicological studies indicate little or no toxicity within drain waters, although groundwater within the contaminant plume is highly toxic. Vertical stratification within the plume is the most likely cause of the lack of observed toxicity and relatively low contaminant concentrations within the drain. Groundwater modelling indicates that the maximum concentration of dissolved Cu may have already occurred adjacent to the SMD, and that concentrations are likely to reduce in the future. It is concluded that active remediation of the groundwater contamination is not warranted at present, based on the lack of any observed toxicity in the drain water at low-flow conditions, together with the numerical model predictions of reducing concentrations within the plume in the future. An appropriate remediation strategy may therefore comprise monitored natural attenuation (MNA) through a reduction or elimination of the source, a reduction in the mass of contamination via an acceptable level of discharge to the SMD, and a reduction in concentration below guideline levels via dispersion. Consequently it is proposed that an appropriate remedial action plan should incorporate the following main elements: Implementation of the Surface Water Management Plan to minimise or prevent stormwater contamination. Reduction and elimination of the source/s of groundwater contamination by the decommissioning of underground effluent systems and the installation of above ground services. Removal of contaminated sediments at concentrations above Health Based guideline levels within the POD. On-going monitoring to provide appropriate targeted data. Re-calibration of the numerical model incorporating further monitoring data to increase confidence in predictive simulations. Further eco-toxicological appraisal. More detailed ecological risk assessment studies. Appraisal of remedial alternatives as a fallback position where unacceptable impacts are observed or predicted. SHELL SERVICE STATION An Environmental Site Assessment conducted by Shell prior to their closure demonstrated moderate levels of hydrocarbon pollution resulting from leaking underground infrastructure. Subsequently Shell completed a full impact risk assessment and soil remediation works at the site to the satisfaction of Westralia Airports Corporation. The relinquishment of pollution management responsibilities by Shell is however tied to on going monitoring and as a part of their remediation program. In 20 / Shell commissioned investigations to reveiw site condition and found that: The extent of the hydrocarbon plume impact has decreased, with hydrocarbons no longer detected in monitoring wells across baker Road and beyond the Brearly Ave roundabout. The groundwater monitoring wells installed as part of this work have successfully delineated the extent of the plume. Concentrations of hydrocarbons have increased in the centre of the plume (A typical response consistent with desorption of hydrocarbons from the soil profile). There is demonstrable proof that the hydrocarbon plume will continue to attenuate via processes of soil bio - degradation. Subsequent to the investigations, Shell arranged for weekly monitoring and removal of Phase Separated Hydrocarbons (PSH) from bores within the centre of the plume. This program is still currently operating and will continue until no PSH is present in the bores. Shell will continue bi-annual groundwater monitoring in March and September. Monitoring will continue until concentrations of hydrocarbons at the site have decreased to below recommended guideline concentrations

13 LAND MANAGEMENT The Land Management Plan has been completed in draft form this year. All major components have been carried out as detailed in the following section. In the coming year, the document will be incorporated into WAC s Environmental Management System. FLORA CONSERVATION WORKS BP Fuel Line Rehabilitation of pipeline installation works airside was undertaken in the 20/ year to mitigate bushland impacts over a 0.5 Ha area. Earlier in the year, British Petroleum (BP) identified the need to decommission its above ground pipeline and replace it with a state of the art, monitored underground system. Decommissioning of BP pipeline BP were proactive in dealing with the impacts, considering this work was conducted in response to growing infrastructure requirements at the airport and it did not impact on any regional environmentally significant values. Following the pipeline installation, topsoil was returned to the area and vegetation previously cleared from the site was brushed on to reduce erosion and encourage native regeneration. A qualified contractor was then engaged to control weeds, monitor rehabilitation success and provide additional plants where required. To date the contractor has: Slashed mature Lupins and grasses to prevent seeding and to reduce fire risk. Spot sprayed broadleaf weeds, Juncus microcephala, thistle and Nightshade with Biactive 360gm/100l. Installed 2 monitoring quadrats, 1 on the east side and 1 on the west side of drain and 2 photo monitoring points. Photo recorded conditions within quadrats and from photo points. Identified key revegetation species on the site. Placed an order with nursery for 1000 plants Applied biactive glyphosate herbicide to Love Grass and Broadleaf weeds over the site. Hand weeded Nutgrass species (Cyperus spp) and Fleabane. Applied Fusilade (grass specific) herbicide to veldt and annual grasses over the site. Hand removed Broadleaf and Lupin weeds. Supplied and planted 1000 tubestock in revegetation site. Monitoring has been postponed until November 20 when weed control and planting survival rates are most evident. Ambush Hill BP Fuel Line rehab area In December 20, following a rise in security issues associated with the area, WAC wrote to the Department of Transport and Regional Services (DoTaRS), seeking to gain approval for carrying out vegetation modification works at an area in the South West corner of the Airport, known as Ambush Hill. In recognition of the environmental values of the area, WAC made the application, demonstrating how due diligence in surveying for significant biota and conducting works would be applied. Notwithstanding these initiatives there was an unprecedented increase in the frequency of these incidents since April 20 and hence the application to modify the dense vegetation of the area to facilitate security control was made. An assessment of the security and safety risk associated with the activity in the vicinity of chainage 3.5 on the link road was carried out. The assessment was conducted using the principles of AS/NZS 4360:1999 Risk management in Security Risk Analysis. Recommendations from the assessment were that CCTV surveillance was considered the most appropriate measure to detect the presence of trespassers in the area. However, due the size and remoteness of the area the costs are prohibitive. Infrared detection and electric fencing were also deferred due to the cost implications. These options may be reconsidered to enhance security in the future. The preferred method of deterrent was to provide a full height security fence on the Airport Boundary in addition to the existing full height security fence at the Airside boundary, effectively creating a no go zone. Additionally however, the dense vegetation that currently exists between the two fence lines must be modified to remove the cover it provides to unauthorised trespassers. It was proposed that this will create an area that the offenders will be reluctant to enter, as it will slow their ability to escape being apprehended. The increased level of visibility to the newly proposed airport boundary fence would result in fence integrity being maintained and the distance between the two fences would prevent the offenders from throwing objects at vehicles. The newly proposed full height security fence would follow the line of the airport boundary along the Northern section and then follow the old Hardey Road alignment to Gate Six. Following assessment of the areas environmental significance, WAC in conjunction with DoTaRS, and taking independent advice from botanical consultants, developed certain vegetation clearing requirements that were to be met in order to lessen the environmental impacts. The landform was developed so that understorey species are no greater than 300mm in height and overstorey material is cleared to 2m above ground level. This approach resulted in reducing the ability of trespassers to avoid detection by security patrols whilst maintaining some of the inherent value of the bushland in the area. Native material removed as part of these works was brushed over the subject area to provide soil stability and encourage natural regeneration. Non-native material was removed from the area and disposed of off site, with grass hummocks treated with herbicide and left in place. Precautionary measures against the loss of fauna during these works was taken as specified in the tender. WAC is confident that the outcome, meets the needs of both airport security and natural conservation. Security Officers now have better visibility and access allowing detection of trespassers and the area has retained its ecological functions Precinct 3B - Hazelmere Late in 20, the Airport leased development precinct 3B totalling some 20ha. The forward works for developing the land comprised clearing of vegetation, grading of the site and construction of temporary drainage channels in preparation for potential future proposals for development. The Airport Master Plan identifies Precinct 3B for non-aviation development including industrial land uses. WAC developed a Precinct Plan for Precinct 3, which has been discussed with the DoTaRS, as well as selected local residents, the Shire of Kalamunda and City of Swan. The plan provides a preliminary layout for commercial, industrial and light industrial land uses, with a provision for a buffer adjacent to State lands (particularly residential/special rural lots). The proposal for forward works was consistent with the Master Plan and Precinct Plan. Before selective clearing After selective clearing There has been a history of security and safety incidents occurring in the general proximity of chainage 3.5 on the Southern link road (Ambush Hill). The incidents include attempted airside trespass and antisocial behaviour including the placing of debris and throwing of objects at vehicles. Records show that these incidents have been occurring since A variety of initiatives have been put in place to improve safety and security in this area these have included :- Additional overt security patrols The placement of warning signs on the perimeter road The clearing of vegetation that provides cover for the offenders Removal of high ground close to the security fence The placement of covert standing patrols during likely periods of high activity by offenders, and Liaison with WAPOL and local community welfare organisations to provide awareness to local youth on the implications of these activities The commissioned botanical survey: Identified no Rare and Declared Flora or Threatened Ecological Communities, Made recommendations on possible vegetation treatments, and Provided tender specifications in order to demonstrate how suitably qualified contractors will carry out the vegetation treatments. Essentially the recommendations were designed to facilitate security requirements at Ambush Hill while ensuring the health and stability of the modified vegetation. Native overstorey species were retained in areas where it did not decrease the local visibility of the area, thereby minimising the chance of the unauthorised persons hiding. Clearing of selected native understorey and introduced species was done under the supervision of an environmental professional familiar with the relevant species. CALM TEC unit on site Dumped rubbish Pasture areas Remnant native bushland 23 24

14 The Environmental Strategy identified no sites of environmental significance in the proposed area, being already largely cleared or disturbed. However, a 1.7ha area of remnant bushland existed, which was identified under the State Ministry for Planning s Bush Forever document as Other Native Vegetation (not under Bush Forever Site 386 identified as regionally significant and to be protected for conservation). It was noted that the bushland contained species, Eucalyptus calophylla and Xanthorrhoea preissii, which possibly represented a critically endangered community (Swan Coastal Plain Community 3C) that may have constituted a Threatened Ecological Community recognised under the EPBC Act (under advice from CALM in WA). State CALM inspectors visited the bushland on 3 October 20, but advised that the area was small, averagely degraded, weed invaded and that protection of the bushland was not warranted in this case. WAC and the lessee arranged for the grass trees and zamia palms to be professionally removed for later revegetation on the airport, including this precinct. WAC has a policy of a 15% minimum of lease areas to be landscaped, in this case with species native to Perth Airport. Additionally, the bushland was believed to provide habitat for a population of Southern Brown Bandicoots (Quenda, or Isoodon obesulus fusciventer). This species was listed as threatened in WA until July 1998, but is now widespread and numerous. CALM conducted trapping for bandicoots over a period of two weeks, catching about five bandicoots. CALM removed the captured bandicoots for relocation to a suitable alternative habitat, as numbers across the airport are believed to be at capacity for the area and habitat. disturbed bushland, which prevented the use of broad scale application methods. Progress was therefore slower than expected. All areas were searched for late germinants and plants that were overlooked in previous treatments. Any plants found were treated with Glyphosate herbicide. Known and suspected sites will be assessed after seed germination in Autumn/ Winter 20 and a work plan developed for that year s treatment. Geraldton Carnation weed is a seed propagator. Areas outside of the WAC bushland hold populations, which will continue to be a source of seed. The main area is the Tonkin Hwy road verge that boarders nearly half of the Airport. Liaison with numerous off Airport agencies will be required to achieve long term control of the weed on the WAC site. Another consideration is the effect that introduced species have on its spread. Introduced Doves use the seed and are a vector for its dispersal and therefore complete control would require a control programme for these birds. Geraldton Carnation weed has previously responded well to manual and chemical control programmes. The process is one of preventing recruitment into and gradually using up the seed store in the soil. This is achieved by killing any plant before it produces viable seed. This process will take up to 3 years to achieve a high level of control, at which point the population will be easily managed within a general weed control programme. During 20/ the following works were conducted; Spraying of Watsonia and Arum Lily regrowth around Munday Swamp and along the drainage channel from the swamp to Grogan Rd. The areas treated in previous years were specifically targeted. The mix was Biactive Roundup and Metsulfuron Methyl. Spraying of remaining adult Watsonia, Arum Lily and germinating seedlings with a Biactive Roundup and Metsulfuron Methyl herbicide mix. Spraying of Bridal creeper regrowth around Munday Swamp and along the drainage channel from the Swamp to Grogan Rd. Specifically, the areas targeted were treated in previous years. The mix was Metsulfuron Methyl at 2.5gm/ha. Spraying of remaining adult Bridal Creeper and germinating seedlings with Metsulfuron methyl at 2.5gm/ha. Arum control at Munday Swamp VERTEBRATE PEST CONTROL PROGRAM Feral animal control was undertaken over the 20/ year at Perth Airport. Poisoning and trapping programs controlled fox, feral cat and rabbit populations, that were threatening the conservation objectives at Perth Airport. Each species was targeted at the time of the year they were most vulnerable, to ensure maximum impact. The control methods were specially tailored to control the target species and minimise adverse impacts on native fauna present as the objective of the program was to enhance the survivorship of the native fauna. Cage installation near Munday Swamp An application was made under Section 18 (Aboriginal Heritage Act 1972) to the State Minister for Indigenous Affairs by the Lessee in relation to undertaking development in the vicinity of a registered Aboriginal Site. After comprehensive survey and stakeholder consultation, the Minister granted approval with conditions. Control program signage The treatment of remnant bush in this example, demonstrates WAC s commitment to the environmental conservation in relation to property development at the Airport. WAC encourages developers to rationalise the fate of bushland material including grass trees and zamia palms to prevent them ending up as site waste and possibly being burnt off. The plant material has been made available for reintroduction into the WAC estate. Priority Weed Control During July 20, significant populations of Geraldton Carnation weed (Ephorbia terracina) were identified in the South East Areas of the Perth Airport bushland between Horrie Miller Drive and Tonkin Hwy. The weed is of concern in bushland due to it s ability to spread very quickly from seed, the high cost of removal, difficulty of removal once established and the increased fire risk during summer months. The known population of the Geraldton Carnation was manually removed and adjacent areas of bushland were searched to define the range of the weed. Additional populations of the weed were treated with Glyphosate herbicide. Many plants were located in Munday Swamp Carnation weed Control Control of Watsonia, Arum and Bridal Creeper, around Munday Swamp was initiated in 1999/2000. Treatments during 2000/20 were very successful with over 90% of the weed populations controlled. During 20/ all existing treatments were maintained with the view to incorporating them as procedures in a Land Management Plan, where there is potential to focus on longer-term management solutions. Qualified and highly experienced contractors were again engaged to perform all work. Due to the fragmented nature of the bushland surrounding Munday Swamp, spray crews with backpacks were employed rather than broad scale spray equipment. Routine progress meetings were also held to ensure that WAC had feedback during works and that any minor adjustments to contract specifications could be made. Adjacent Carnation weed control Ongoing work in Winter and Spring is required to maintain low population levels through the control of seed germinants. Both Watsonia and Arum are regarded as having relatively short seed viability and a high degree of control of these plants can be expected if seeds are prevented from entering the site from other off Airport sources. Future initiatives may look at site stabilisation where the revegetation of previously weed covered areas prevents other weeds from replacing the species that have just been removed. The site is also large and access can be limited due to waterlogging of adjacent areas. Drainage and access issues are therefore also long term initiatives likely to be pursued in coming years when inflow issues are resolved. Rabbits Rabbits are relatively abundant and occur throughout the entire ground area. Rabbits limit the flora by selective grazing and may compete with native animals such as the Southern Brown Bandicoot (Isoodon obeslus), which also occurs in good numbers at the airport. Poisoning was undertaken using 1080 and Pindone. The poison 1080 was laid using oats as the bait carrier was laid in areas were bandicoots were present as the use of 1080 has no adverse impact on bandicoots due to their higher tolerance to this poison compared to introduced species such as the rabbit. The poisoning program using 1080 required approval from the Department of Agriculture under the Poisons Act. Consultation with protection officers from that department ensured all relevant legal requirements were complied with. Pindone (an anticoagulant) poses a much lower risk to domestic animals, although bandicoots and macropods may be at risk should this poison be placed where these animals have access to it. As Pindone is best used where there is a high risk to domestic animals, 25 26

15 it was used in areas where the use of 1080 posed too high a risk through primary or secondary poisoning. Pindone concentrate was used rather than the commercially available product as it is more economical and just as effective. It was laid in oats as a food carrier with the oats dyed green to deter birds from feeding on the oats. No non-target species were found or reported to have been poisoned during or after the program. A follow up of the 1080 poisoning was undertaken along the Airside perimeter road and some tracks and firebreaks to further reduce rabbit numbers found to be in these areas. This reduced the number of rabbits to acceptable controlled numbers in all areas where control was undertaken. No control was undertaken near buildings as a number of bandicoots were found to be accessing food (grass and food provided by people) and the areas posed a high risk as a result of this. Warning signs were erected around the Airports perimeter fence and neighbour notification (including local Veterinarians) was undertaken to warn of the risks to domestic animals from the Foxes Fox control was undertaken using baits containing Baits consisted of factory manufactured baits (3.0 mg 1080), dried kangaroo (4.5 mg 1080) and fowl eggs (injected with 4.5 mg of 1080). Baits were buried to reduce risks caused by birds transporting the poisoned baits elsewhere. Eggs injected with 1080 liquid concentrate posed the least risk to domestic dogs as they are not readily transported off site and domestic dogs are less able to find eggs compared to foxes. FOX CONTROL Fox Control Warning Signs (Approx) Fox Control Areas Baiting was conducted during spring, as the fox population is relatively stable at this time of the year. Rabbit control with 1080 assisted in the control of fox numbers through foxes being poisoned by secondary poisoning. Trapping for feral cats resulted in two foxes caught in leg hold traps. Feral Cats Feral cats were controlled using traps. No non-target animals were caught in traps set for feral cat control. Two domestic cats were trapped and they were released unharmed. Trapping consisted of using cage traps and padded leg hold traps. Trapping resulted in the capture of nine feral cats. Of the cats caught, four were caught in cage traps and five were caught in leg hold traps. Three of the cats caught in leg hold traps were found to have walked past cage traps without being caught. FERAL CAT CONTROL Known Feral Cat Signs/Activity Feral Cat Control Areas PEST MONITORING SITE No. RABBITS FOXES FERAL CATS Before After Before After Before After % CONTROL 68% 84% 50% Averages are taken from between 6 and 8 monitoring events for each site. The results show effective control of each of the species was achieved by the control programs conducted. Next years program will put less emphasis on Pindone poisoning. It is anticipated that the area subject to Pindone poisoning will be reduced by approximately 50%, providing a cost benefit while not detracting from program effectiveness. CLEAN UP AUSTRALIA DAY Eleven volunteers from the Belmont-Victoria Park Catchment Group (BVPCG) gave the Perth Airport bushland a good clean up on Sunday, March 3, 20. The volunteers participated in the National Clean-Up Australia Day, an initiative of Environment Australia s Clean Up Australia program. A total of thirty bags of rubbish were collected in the Newburn bushland area between Horrie Miller Drive, Tonkin Highway and the recently completed Abernathy road extension. BVCGP Coordinator, Michelle Crow worked in partnership with Westralia Airports Corporation to firstly nominate the Airport as a registered clean up site and then manage the clean up crew s activities. ABANDONED VEHICLE COLLECTION As part of the management plan regarding unauthorised airport access, Westralia Airports Corporation has developed a program for the removal of abandoned vehicles, dumped at Perth Airport. Last year, WAC engaged a reputable and highly experienced contractor to carry out all works. Standard operating procedures were developed to; Survey vehicles, noting all details with photo Forwards any relevant details of vehicles to local police Observe a minimum two week wait period Ensure all vehicle bodies are disposed of at an appropriate facility. Ensure vehicle removal includes the removal of any scrap or debris associated with the vehicle. During the 20/ year, 36 vehicles were surveyed and removed by the contractor and an estimated 5 tonnes of associated debris was collected. None of the vehicles reported were of interest to the Police. Abandoned vehicles found around the airport A total of 12 cage traps and twenty, padded leg-hold traps were used during the feral cat program. No traps were set where the public could see the traps or the traps would be likely to be found. The vertebrate pest control program has now been running for two years at Perth Airport. Its effectiveness is shown in the following table. Four sites have been monitored throughout the year on a regular basis and the number of tracks of each target species was recorded. The table shows the average number of tracks for each species before and after control program was undertaken. Volunteers from the BVPCG 27 28