Asbestos removal control plan

Caldwell House and Nurses Accommodation, 129 to 133 Sale Street, Orange, NSW

Date: 17 May 2018 Report Number: R7040arcp2

Envirowest Consulting Pty Ltd ABN 18 103 955 246

9 Cameron Place, PO Box 8158, Orange NSW 2800 Tel (02) 6361 4954 6/72 Corporation Avenue, Bathurst NSW 2795 Tel (02) 6334 3312 Email admin@envirowest.net.au Web www.envirowest.net.au

Environmental Geotechnical Asbestos Services

Authorised by: Greg Madafiglio

Asbestos assessor Prepared for: Health Infrastructure c/-Spectrum Partners Pty Ltd Suite 1108, Level 11, 109 Pitt Street, Sydney NSW 2000 Date: 17 May 2018 Report Number: R7040arcp2

Copyright © 2018 Envirowest Consulting Pty Ltd. This document is copyright apart from specific uses by the client. No part may be reproduced by any process or persons without the written permission of Envirowest Consulting Pty Ltd. All rights reserved. No liability is accepted for unauthorised use of the report.

Contents 1. Introduction ................................................................................................................................4

2. Objective ....................................................................................................................................4

3. Site identification ........................................................................................................................4

4. Legislation ..................................................................................................................................4

5. Notification ............................................................................................................................... 4

6. Asbestos containing material (ACM) identification .....................................................................5

7. Remediation works................................................................................................................... 7

8. Preparation .............................................................................................................................. 8

9. Removal ................................................................................................................................. 15

10. Decontamination .................................................................................................................... 16

11. Clearance ............................................................................................................................... 16

12. Reporting ............................................................................................................................... 17

Figure Figure 1. Location of the buildings Appendix Appendix 1. Work method statement – asbestos removal

1. Introduction Caldwell House and nurses accommodation are multistorey vacant buildings which were previously part of the now relocated Orange Base Hospital. The buildings and land will be divested from Health Infrastructure. The buildings contain asbestos and removal is required prior to demolition and sale. Inspection by Envirowest Consulting identified the extent of the asbestos contaminating the buildings (R7040aa2 and R7040aa2.1). Make safe works were undertaken in March 2017 and April 2108 to prevent the asbestos from contamination other areas the building and outside the building.

An asbestos removal control plan (ARCP) is required to provide a scope and safe work practices for removal of the pipe lagging in the building prior to divestment.

2. Objective The scope of the work was to develop a site specific asbestos control plan for the removal of damaged asbestos lagging in Caldwell House and nurses accommodation and annex buildings located at 129-133 Sale Street, Orange, NSW. 3. Site identification Address

Caldwell House and Nurses Accommodation 129-133 Sale Street, Orange, NSW

Site description

Caldwell House is a tow level building with a single level annex, connection corridor and several other small builds contain plant Nurses accommodation is a four level building including basement level. An entrance corridor connects Caldwell House and the Nurses Accommodation

4. Legislation This ARCP and associated Work Method Statements satisfy the requirements of the Safework Asbestos Codes of Practice and Guidance Notes:

• Safe Work Australia (2016) How to Safely Remove Asbestos and

• Safe Work NSW (2016) How to Manage and Control Asbestos in the Workplace

• National Occupational Health and Safety Commission (2005) Guidance Note on the Membrane Filter Method for Estimating Airborne Asbestos Fibre, 2nd Edition [NOHSC: 3003 (2005)].

The ARCP is consistent with New South Wales legislative requirements, these being:

• Work Health and Safety Act 2011

• Work Health and Safety Regulation 2017

• Protection of the Environment Act, 1997 5. Notification The licensed asbestos removalist will notify the regulator in writing at least five days prior to removal work commences. The notification will include the following information:

• Name, registered business name, Australian Business Number, licence number and business contact details of the licensed asbestos removalist

• Name and business contact details of the supervisor who will oversee the removal work

• Name of the assessor engaged to undertake air monitoring and to issue the clearance certificate

• Client name and contact details

• Name, including registered business or corporate name, of the person with management or control of the workplace

• Address of the workplace

• Kind of workplace where the removal work will be performed

• Date of notification

• The start date of the removal work and an estimation of duration

• Whether the asbestos to be removed is friable or non-friable

• The type of asbestos

• The way the asbestos will be enclosed

• Estimated quantity of asbestos to be removed

• Number of workers who will perform the removal work and details of their competency to carry out the work

6. Asbestos containing material (ACM) identification Asbestos containing materials have been identified in the in the buildings (Envirowest Report R7040hm3) and summarised in Table 1. Asbestos has been identified in the pipe lagging and cement sheeting. The pipe lagging is damaged through the buildings including the ceiling cavity, basement and subfloor space. The pipe lagging is friable asbestos and in poor condition. The asbestos is an extremely high risk to people entering the building. The heavily contaminated areas have been covered and sealed with plastic and the exterior of the building has been sealed during make safe works. Table 1. Location of asbestos and risk rating

Register ID number

Location Description

Former 1970’s nurses accommodation

1a Hotwater tank room on roof, walls and ceiling Cement sheeting 2a External, hotwater tank on roof Cement sheeting 3a Basement, internal, boiler room, boiler Mill board 5a Basement, internal, fire door Insulation 7a Basement, internal, pipes Lagging 8a Basement, internal and external, ground Lagging 9a Levels 1, 2 and 3 and roof, internal, fire doors core to stairwell Insulation 10a Levels 1, 2 and 3, internal, floor Vinyl floor tiles – green 11a Levels 1, 2 and 3, internal, floor Vinyl floor tiles – cream 12a Levels 1, 2 and 3, internal, SRD flow, electrical switchboard, ceiling Cement sheeting

13a Levels 1, 2 and 3, internal, firehose cabinet, ceiling Cement sheeting 14a Levels 1, 2 and 3, internal, domestic room cupboard, ceiling Cement sheeting 15a Levels 1, 2 and 3, internal, domestic room, pipes Lagging 16a Levels 1, 2 and 3, internal, lunch room east, floor Vinyl tiles – olive 17a Levels 1, 2 and 3, internal, wash room, upper part of wall Cement sheeting 18a Levels 1, 2 and 3, internal, all rooms with radiators, pipes enclosed in walls or

service cupboards Lagging

19a Levels 1, 2 and 3, internal, fire cupboard, pipes Lagging 20a,21a, 22a,23a

Pipes in ceiling cavity and walls, all levels Lagging

Caldwell House location Material

2b Eastern wing, ground floor, internal, main hallway, fire door. Core 3b Eastern wing, ground floor, internal, public male/female toilet (door id 64), partition Cement sheeting 4b Eastern wing, ground floor, internal, toilets (door id 63), partition Cement sheeting 5b Eastern wing, ground floor, internal, electrical room (door id 61), backboard Resin composite board 6b Eastern wing, ground floor, internal, reception area, waiting room, door infill Cement sheeting 7b Eastern wing, ground floor, internal, pipework concealed in walls Lagging 8b Eastern wing, second floor, internal, central verandah on eastern side, part northern wall Cement sheeting 9b Eastern wing, second floor, internal, central verandah on eastern side, ceiling Cement sheeting 10b Eastern wing, second floor, internal, electrical room (door id 144), backboard Asbestos resin 11b Eastern wing, second floor, north east office (door id 155), partition Cement sheeting 13b Eastern wing, second floor, internal, bathroom (door id 145), ceiling Cement sheeting 14b Eastern wing, second floor, internal, bathroom (female toilet) (door id 125), ceiling Cement sheeting 15b Eastern wing, second floor, internal, pipework Lagging 16b Western wing, ground floor, internal storage cupboard in western section, ceiling Cement sheeting 17b Western wing, ground floor, internal, central enclosed verandah, eastern wall Cement sheeting 18b Western wing, ground floor, internal eastern enclosed verandah, western wall Cement sheeting 19b Western wing, ground floor, internal, fire hose cupboard at western end, ceiling Cement sheeting 20b Western wing, ground floor, internal, pipework concealed in walls Lagging 21b Western wing, second floor, internal, enclosed verandah, ceiling Cement sheeting 22b Western wing, second floor, internal, fire doors Core 23b Western wing, second floor, internal, eastern office (door id 158), ceiling Cement sheeting

24b Western wing, second floor, internal, storage room (door id 196) ceiling Cement sheeting 25b Western wing, second floor, internal, bathroom/toilet (door ids 181 and 182), ceiling Cement sheeting 26b Western wing, second floor, internal, toilet (door id 186), ceiling Cement sheeting 27b Western wing, second floor, internal, storeroom (door id 187), ceiling Cement sheeting 28b Western wing, second floor, internal laundry (door id 188), ceiling Cement sheeting 29b Western wing, second floor, internal, laundry (door id 188), lower part of eastern wall Cement sheeting 30b Western wing, second floor, internal, storage room (door id 189), ceiling Cement sheeting 31b Western wing, second floor, internal, fire hose cupboard at western end, ceiling Cement sheeting 32b Western wing, second floor, internal, storage room (door id 192), ceiling Cement sheeting 33b Western wing, second floor, internal, western section, enclosed verandah, ceiling Cement sheeting 34b Western wing, second floor, internal, pipework concealed in walls Lagging 35b Single story western wing, internal, kitchenette near stairwell, door in fill Cement sheeting 36b Single story western wing, internal, storage room (door id 114), ceiling Cement sheeting 37b Single story western wing, internal, enclosed verandah, ceiling Cement sheeting 38b Single story western wing, internal, kitchen (door id 115), ceiling Cement sheeting 39b Ceiling, cavity, pipe lagging, residue Lagging 40b Ceiling cavity, water cistern Cement sheeting fragment 41b External, western entry to western wing, ceiling Cement sheeting 42b External, pipes on south western wall near hotwater system enclosure Lagging 43b Subfloor, pipe lagging Lagging 44b Subfloor, ground Lagging

45b,46b

Internal areas of level 1 and 2 Internal areas of level 1 and 2

Lagging Lagging

47 Pipes connecting Nurses accommodation and Caldwell house

Lagging

Other buildings

1c External, northern carport, meter board Resin composite board 2c Maintenance shed, external walls Cement sheeting and

mouldings 3c Maintenance shed, internal walls Cement sheeting 4c External, hotwater system enclosure on south western side of Caldwell House, external walls Cement sheeting

Type of ACM: Non friable and friable asbestos Condition: The asbestos containing material is not damaged to severely damaged. Quantity and location:

• Refer to audit reports for locations (R7040hm3 and R7040aa3) Finish required: Removal, clean removal area, wipe, wash, spray with PVA/paint Waste storage: Wrapped in plastic and stockpiled in discrete areas after removed for collection and transport off site. Runoff water to be filtered through HEPA geotextile Waste disposal: Landfill Where: Asbestos locations area listed in Envirowest Consulting Hazardous Materials Report number R7040hm3 and R7040aa3 Hazards: Airborne respirable fibres Other: Work method statements and risk assessments are described in Appendix 1. Control requirements:

• Notification of SafeWork NSW is required 5 days prior to commencement

• Asbestos removalist with friable supervisor licence to supervise friable asbestos removal works

• Asbestos removalist with friable or non-friable supervisor licence to supervise friable asbestos removal works

• All workers to be trained in asbestos removal

• Asbestos assessor on site to check controls, air monitoring and clearances

• Safe work method statements for key activities

• Washdown and decontamination facilities

• Dust mitigation

• Daily air monitoring

• Worker induction

• Worker PPE to be work

• Signage and restriction of access

• Enclosure with negative air to be constructed around main stairs prior to removal of vinyl and fibrous backing on main stairs. Enclosure to be inspected by asbestos assessor prior to removal works

• All vehicles to be parked within the site enclosure. Entry to and from the buildings is to be via the rear (western) area on the site.

7. Remediation works 7.1 Works All asbestos requires removal from the buildings. Unidentified asbestos may be present that is hidden by building structures. If unidentified asbestos is suspected the unidentified finds protocol will be implemented. The works are considered friable asbestos removal and require:

• Pipe lagging will be removed from the buildings

• All internal areas of Caldwell House are considered to be contaminated with asbestos and contents require removal and cleaning of hard surfaces

• All areas of the ceiling space Caldwell House to be painted with dilute plastic paint to seal remaining fibres after removal of bulk asbestos

• Sub floor space under Caldwell house contains soil contaminated asbestos and removal will be required until no asbestos is present. Testing of the soil will be required of the soil to provide a clearance

• Subsurface pipes between Caldwell House and Nurses accommodation will require removal

• Pipes in the basement of Nurses accommodation extend in a trench void under Sale Street. The void will require sealing at the edge of the building prevent future migration of asbestos.

• The non-friable asbestos sheeting in various areas of the buildings will be removed

• All areas require cleaning after removal of asbestos

• Removal area to be encapsulated prior to removal works commending. The encapsulation to be checked by asbestos assessor with a smoke machine as appropriate prior to works commencing.

• SafeWork licensed friable supervisor to be on site at all times for removal works

• Checklist of controls to be undertaken daily to ensure appropriate safety measures are undertaken

• Two negative air units to be operational during all works for each building

• Wet decontamination to be undertaken for workers

• Asbestos assessor to undertake smoke testing of enclosure prior to works commending

• Daily surveillance air monitoring is required

• Asbestos assessor to undertake visual inspection, wipe tests and air monitoring for the clearance 7.2 Transportation to landfill All haulage routes for trucks transporting soil, materials, equipment or machinery to and from the asbestos removal area shall be selected to meet the following objectives:

• Comply with all road traffic rules

• Minimize noise, vibrations and odour to adjacent premises

• Securely cover all loads to prevent any dust or odour during transportation

• Exit the site in a forward direction and

• Will not track ACM, soil, mud or sediment onto the road. All material removed from the site is classified as special waste asbestos. Transport should be in accordance with EPA requirements which will include covering and other requirements. Worker disposable PPE will be disposed in labelled plastic bags prior to leaving the site for disposal to a landfill licensed to accept the waste. Orange City Council will be notified prior to transport to enable correct procedures for burial on arrival.

8. Preparation 8.1 Consultation The asbestos removalist will consult with work safety representatives, other workers and the independent asbestos assessor at the site on occupational health and safety issues. The workplace will include full consultation, information sharing and involvement by everyone in the workplace including employers, workers and contractors at each step of the ACM removal process. The consultation methods will be at the time of induction and at toolbox meetings. Neighbours of will be informed of the proposed asbestos removal activities by a letter drop. The letter will include a brief description of the works and contact details if they have any concerns or questions. The letter drop will be undertaken in consultation with Incline Constructions and Health Infrastructure. 8.2 Approvals Approval from Safework NSW is required prior to commencement.

8.3 Assigned responsibilities of the removal 8.3.1 Persons conducting the business or undertaking (PCBU) The person which is conducting the business or undertaking (PCBU) must ensure:

• Asbestos removal work is undertaken by a Class A licensed asbestos removalist.

• No-one other than workers engaged in the asbestos removal work has access to the asbestos removal area.

• An independent asbestos assessor undertakes air monitoring of the asbestos removal area. 8.3.2 Person with management control The person with management control of a workplace must ensure:

• No-one other than workers engaged in the asbestos removal work has access to the asbestos removal area.

8.3.3 Licensed asbestos removalist The licensed asbestos removalist must ensure:

• Nominated asbestos removal supervisor is present for asbestos removal work whenever the work is undertaken.

• Workers hold certification for friable asbestos removal.

• Workers are appropriately trained to undertake the removal work in accordance with the asbestos removal control plan.

• Training records for workers are maintained and readily accessible at the work site.

• Information regarding health risks and health effects associated with exposure to asbestos is provided to people likely to work on the site prior to engagement.

• Asbestos register for the site is obtained. An asbestos register is not known to have been prepared for the site.

• Preparation of an asbestos removal control plan (ARCP) for the removal work and a copy of the ARCP. The plan must be kept in accordance with the WH&S Act.

• Written notification to the regulator at least 5 days prior to commencement of removal work.

• Information regarding removal work and commencement date is provided Lachlan Shire Council.

• Signs are displayed alerting people to the presence of asbestos and barricades are erected to delineate the asbestos removal area.

• Facilities are available to decontaminate the asbestos removal area, plant used in the asbestos removal area, workers and other persons with access to the asbestos removal area.

• Asbestos waste including PPE, is contained and labelled before removal from the site and is disposed as soon as practicable at a site authorised to accept asbestos waste.

• Decontamination of anything to be removed from the asbestos removal area prior to removal or sealed in a labelled container and the exterior of the container decontaminated.

8.3.4 Person who commissions licensed asbestos removal The person who commissions licensed asbestos removal must ensure:

• Clearance inspection of the asbestos removal area is undertaken following completion of removal work. The clearance inspection is to be carried out by an independent asbestos assessor. A clearance certificate must be obtained from the licensed asbestos assessor.

• Results of air monitoring are provided to workers at the workplace, health and safety representative, persons conducting a business or undertaking and other persons at the workplace.

8.3.5 Licensed asbestos assessor

The licensed asbestos assessor will:

• Assess the asbestos removal area and health risk of removal processes.

• Undertake air monitoring is undertaken using the membrane filter method. 8.3.6 Safework NSW and Local council Authorises the disposal of asbestos at landfill. 8.4 Program commencement and completion dates Planned commencement date: to be determined Planned completion date: 12 to 20 weeks 8.5 Worker inductions Workers on the site shall be trained in the safe work methods required for working with asbestos materials and have Safework NSW licences for the removal of non-friable and friable asbestos. The possible health risks and the procedures to be followed to minimise health risks will be included in the training. The training will be undertaken prior to commencement of works and provided by the asbestos assessor. Daily toolbox meeting will discuss incidents, work concerns and the daily monitoring results. A white board will be used reminders and safety information. 8.6 Site, signage and contact numbers The following contact numbers will be needed for the various parties involved:

• Licensed asbestos removalist

• Asbestos assessor A sign displaying the contact details of the licensed asbestos removalist may be displayed on the site adjacent to the site access. The signs shall be displayed throughout the duration of the removal works. Warning signs will be displayed at the entrance to the remediation works during the initial works period: Danger Asbestos Cancer and lung disease hazard Authorized personnel only

8.7 Emergency plans Guidance for potential unexpected conditions:

Potential issue Evidence/signs Corrective action

Exposure of unexpected material

Presence of bulk ACM or other contaminants

Baracade off and restrict access to area Maintain area damp until clean fill can be imported to the area or nearby layer of soil Cover material with soil

Asbestos monitoring above health background criteria

Reported results of monitoring above action level of 0.01fibres/mL

Notify contractor Cordon off and control area Keep exposed surface wet Contact occupation hygienist to assess Review excavation and works

Public enquiry/complaint Site personnel are approached

Immediately refer complaint to the contractor and hygienist Ensure public does not enter designated work area

Wind, rain Dust, surface runoff Close work site, keep material moist, Prepare exposed areas with controls and capping

Excessive odour Complaints from workers or public

Determine source and mitigate

Excessive dust Complaints from workers or public

Increase the use of moisture sprays to suppress dust and/or cover with plastic sheeting.

Excessive noise Complaints from workers or public

Reduce noise until noise is monitored by an acoustics consultant. Adopt recommendations made.

Spillage/leakage of oil, hydraulic fluid or fuels from machinery

Evidence on ground Major spill: Stop spill and contain. Place sandbags downslope, cover area in sand, excavate impacted soil and dispose in appropriate approved facility Minor spill: Stop spill and contain. Cover area in sand, excavate impacted sand and soils and dispose in EPA approved facility

8.8 Asbestos removal boundaries The asbestos removal area is the security fence on Sale Street and 10m from all other sides of the building. Entrance to the building for the workers and equipment will be though Dalton Street. The asbestos removal area boundary will not be entered by site personal during works without appropriate PPE. A decontamination area will be established in a suitable area. Water will be required for personal decontamination. The asbestos removal will occur though an entrance to the courtyard. Signs in accordance with AS 1319-1994 will be placed on the boundaries indicating asbestos removal work is being undertaken.

The signage will remain in place until removal is completed and clearance to reoccupy the site has been undertaken. Site security must be maintained throughout the works. 8.9 Control of other hazards 8.9.1 Noise control The site activities should not generate any noise other than that normally associated with a building site. Hours of operation will be 7am to 5pm, Monday to Friday. All removal work shall comply with the Environment Protection Authority’s Environmental Noise Manual and the Protection of the Environment Operations Act (1997). 8.9.2 Odour control Based on the current knowledge of the site, it is our expectations that odour control measure will not be required. 8.9.3 Confined spaces No confined spaces have been identified at the asbestos removal area. 8.9.4 Falls Working at heights is not expected to be required. Any work at heights greater than 1.5m will require safe work methods statements which may include safety rails, platforms or harness. 8.9.5 Heat stress Heat stress is a hazard which may be encountered at the asbestos removal area. Control measures which may be required to be implemented include:

• Selection of appropriate PPE

• Selection if underclothing

• Scheduling of appropriate work breaks

• Job rotation

• Readily available cool drinks

• Provision of a cool, shaded rest area

• Educating workers about heat stress risks and controls 8.9.6 Electrical installations The lagging removal is not expected to contain electrical installations except in the ceiling space. The circuits in the ceiling will be isolated and deenergised prior to works commencing. 8.9.7 Sediment and erosion control Not required. 8.9.8 Other hazards

Lead paint is present in the building. Risk from lead paint will be managed by implementing asbestos controls. 8.10 Personal protective equipment The following personal protective equipment is required at all times for workers within the asbestos removal area:

• Disposal coveralls (rated type 5, category 3 (ISO 13982-1)) made of fabric capable of preventing tearing and providing protection against fibre penetration. Coveralls must be disposed after single use. Workers should wear coveralls in one size too big to prevent ripping at the seams. The coveralls require to be fitted with hood and cuffs. The hood should be worn over respirator straps.

• Safety footwear which are laceless and steel toe.

• Full face particulate, filter (cartridge) respirator with P3 rated filter until safe atmosphere established. A fit test should be performed to ensure RPE fits the individual and provides a good face seal between the workers skin and face piece.

• Eye protection

• Hardhat if risk of falls is present All PPE must be disposed as asbestos waste at the end of asbestos removal work and upon leaving the asbestos removal area. Non-disposable respirators should be cleaned, disinfected and stored in a safe place away from the asbestos contaminated area. 8.11 Air monitoring program Daily air monitoring (control monitoring) will be undertaken on the site during removal works. The monitoring will be undertaken in accordance with the Guidance Note on the Membrane Filter Method for Estimating Airborne Asbestos Dust, 2nd Edition [NOHSC:3003(2005)]. Air monitoring will be undertaken by an independent asbestos assessor at fixed locations along boundaries representative of the work areas as determined by the independent asbestos assessor. The frequency of control monitoring will be daily for the duration of the asbestos removal work. Exposure (personal) monitoring will not be undertaken. Clearance air monitoring will be undertaken after removal works have been completed in the removal areas, decontamination area and loading bay. Effectiveness and action of the monitoring results will be undertaken according to Table 1.

Table 1. Criteria for asbestos fibres action levels (Safe Work Australia 2011) Action level (airborne asbestos fibres/mL)

Control Action

Less than 0.01 No new control measures are necessary

Continue with control measures

Between 0.01 and 0.02 1. Review Review control measures

2. Investigate Investigate the cause

3. Implement Implement controls to eliminate or minimise

exposure and prevent further release

More than 0.02 1. Stop removal work Stop removal work

2. Notify regulator Notify the relevant regulator by phone followed by

fax or written statement that work has ceased and the results of the air monitoring

3. Investigate the cause Conduct a thorough visual inspection of the enclosure (if used) and associated equipment in consultation with all workers involved with the removal work.

4. implement controls to eliminate or minimise exposure and prevent further release

Extend the isolated/barricaded area around the removal area/enclosure as far as reasonable practicable (until fibre levels are at or below 0.01 fibres/ml), wet wipe and vacuum the surrounding area, seal any identified leaks (e.g. with expandable foam or tape) and smoke test the enclosure until it is satisfactorily sealed.

5. Do not recommence removal work until further air monitoring is conducted

Do not recommence until fibre levels are at or below 0.01 fibres/ml.

8.12 Waste storage and disposal 8.12.1 Asbestos waste disposal route The entry and exit point of the asbestos removal area will be Dalton Street. Asbestos waste will be removed from the site starting in the northern part of the asbestos removal area and working towards the south of the asbestos removal area. 8.12.2 On-site containment Asbestos waste generated from disposable PPE will be placed in new heavy duty 200µg thickness polythene bags. Air will be gently evacuated from the waste bag and appropriate signage stating asbestos waste adhered to the bag. The external surface of the bag will be cleaned and then double bagged outside the asbestos removal area. The bags will be placed in the lined vehicle tray for eventual disposal. 8.12.3 Disposal of asbestos waste The asbestos waste will be transported to a landfill licensed to accept the waste. Transport of asbestos waste is regulated under EPA legislation. Disposal sites are regulated by EPA and local government regulations 8.12.4 Site security During removal works the licensed asbestos removalist will be responsible to ensure any temporary barricading/fencing erected is secure and prevents unauthorized access to the site. All SafeWork NSW requirements will be followed regarding signs and safety measures when working near excavations.

9. Removal 9.1 Method for removing ACM The pipe lagging or sheeting will be sprayed with water and removed in whole pieces without excessive breakage. This may require shovelling and manual picking. The asbestos will be placed in plastic removal bags prior to removal from the enclosure. Removal in the high impact will require rolling up carpet and wrapping in quantities that are able to be manually lifted. All surfaces in the high impact area should be cleaned by spraying/misting of water onto surfaces. The water to be filtered through HEPA geotextile prior to discharge form the building. Follow-up wet wiping of surfaces will be required depending on the effectiveness of the washing process as determined by the asbestos assessor. All fibrous, granular and dust residue is required to be removed from surfaces and floors. The whole ceiling space in Caldwell House will be cleaned by collecting large pieces of lagging and vacuuming dust and asbestos residue. After vacuuming the ceiling cavity will be sprayed with dilute water based paint to seal small fibres. An alternative method of removal is removal of the ceiling. Soil removal is required under the pipes in the subsurface space of Caldwell House to ensure removal of asbestos. Non-friable asbestos cement sheeting will require removal using appropriate techniques. Additional controls and work methods are presented in the work method statement (Appendix 1). 9.2 Equipment Equipment will be selected which minimise asbestos disturbance. Tools and equipment which generate dust such as high-speed abrasive power and pneumatic tools, broom and brushes, high pressure water spray and compressed air are not expected to be required for use within the asbestos removal area. Equipment working within the asbestos removal area will remain within the asbestos removal area until the works are finished, decontamination of the machinery has occurred and clearance has been undertaken by an independent asbestos assessor. All tools and equipment used within the asbestos removal area will be decontaminated or disposed as asbestos waste. All haulage routes for trucks transporting soil, materials, equipment or machinery to and from the site shall be selected to meet the following objectives:

• Comply with all road traffic rules

• Minimize noise, vibrations and odour to adjacent premises

• Securely cover all loads to prevent any dust or odour during transportation

• Exit the site in a forward direction and 9.3 Enclosures All external windows, doors and other cavities will be sealed with tape prior to commencing the works. An inspection of the enclosure will be made by the asbestos assessor prior to commencing works. Daily checks will be made to ensure the seals are maintained.

A separate enclosure will be constructed around the main stairs prior to removal works. The main stairs contain friable asbestos in underlay. 9.4 Temporary buildings Temporary amenities will need to be established as the water supply to the building has been disconnected. 9.5 Other control measures Machinery and worker movement will be restricted to the work area.

10. Decontamination 10.1 Removal work area Decontamination of all areas of the buildings will be undertaken by vacuuming, wet wiping and washing prior to inspections and clearance air monitoring. After clearance all areas will be sprayed with PVA or dilute plastic paint. Paint will be applied in the roof space. Sealing of the pipe void in the basement of the Nurses Accommodation is required to prevent recontamination from the asbestos on pipes unable to be removed. All items in the removal area require wet wiping and inspection by the asbestos assessor to confirm they have be suitably cleaned and can remain in the building. 10.2 Tools and equipment Tools used during asbestos removal work will be fully dismantled, cleaned under controlled conditions and decontaminated prior to removal from the asbestos removal area. Vehicles and machinery leaving the site will be inspected and cleared prior to exiting the site. Machinery used within the asbestos removal area will be decontaminated by wet methods before leaving the site in a designated area. The decontamination areas will be contained and considered contaminated. 10.3 Personal Personal decontamination involves the removal of all visible asbestos dust/residue from PPE and RPE. Personal contamination will be undertaken each time a worker leaves the asbestos removal work area and at completion of the asbestos removal work. Personal decontamination will be undertaken in a decontamination area. Personal decontamination will be undertaken in a decontamination unit. The unit will include a dirty decontamination area, a clean decontamination area and a clean changing area. All external clothing will be removed and disposed in a bag labelled asbestos waste. The worker will the shower and exit on the clean site for dressing in clean clothes. Waste water from the decontamination unit should be treated by passing through a particulate filter or other trap capable of capturing particles down to 5µm prior to disposal to sewer mains.

11. Clearance Clearance monitoring will be undertaken following completion of the asbestos removal work. Air monitoring and tests and visual assessment will be undertaken by an independent asbestos assessor to

determine the effectiveness of the asbestos removal and decontamination work. The clearance assessment will include air monitoring, surface dust tests by adhesive wipes and visual assessment of the work area. Any furniture or other items remaining on the site requires a clearance from the assessor to confirm no asbestos residue remains and adequate cleaning has been undertaken. If impacts or testing indicates other areas of contamination then additional cleaning will be required. All machinery and tools exiting the asbestos removal area will be cleared prior to exiting the site.

12. Reporting A clearance certificate will be issued following the completion of the asbestos removal and decontamination work by the asbestos assessor. The air monitoring undertaken by the independent asbestos assessor will be compiled and documented.

Figure 1. Location of the buildings

129-133 Sale Street, Orange NSW

Envirowest Consulting Pty Ltd

Job: R7040aa Drawn by: GM Date: 1/5/2018

Appendix 1. Work method statement – asbestos removal works