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Preliminary Site Investigation at63 North Pde, Mt Druitt NSW A. D. Envirotech Australia Pty LtdThe subject site is currently not safe in regards to the asbestos hazard.Removal of the asbestos cement debris is warranted and should be carried out by anexperienced AD1-B or AD1-F licensed removal contractor.Based on the Phase I Preliminary Site Contamination Investigation (PSI), it is the opinion of A. D.Envirotech Australia Pty Ltd that there is a low to moderate risk of contamination at the subject site.Once the asbestos removal operations are complete and an asbestos clearance inspection has beenundertaken by an experienced environmental consultant, the site can be deemed suitable for theproposed development of a commuter car park.Preliminary In-Situ Waste ClassificationSample 4224-4A yielded concentrations of nickel above the criteria assigned for GeneralSolid Waste (CT1). The 95% UCL (normal distribution) of the arithmetic averageconcentration of nickel for the subject site is 37.36 mg/kg, which is below the criteriaassigned for General Solid Waste (CT1).All remaining samples yielded concentrations below the criteria assigned for General SolidWaste (CT1).Therefore, based on the evidence collected from the in-situ preliminary Waste Classificationthe soil materials on site meet the classification of Restricted Solid Waste, attributed toelevated nickel concentrations above the criteria assigned for General Solid Waste (CT1).Toxicity Characteristics Leaching Procedure (TCLP) analysis of nickel is warranted forsample 4224-4A.It needs to be noted that this in-situ preliminary Waste Classification is indicative only. Allsoils leaving site will require classification in accordance with the NSW DECCW WasteClassification Guidelines.Based on the above conclusions for the proposed development at the subject site, A. D. EnvirotechAustralia Pty Ltd recommends the following:Asbestos Removal MethodologySince asbestos debris was only observed on top of the concrete surface, an „emu-pick‟removal technique is preferred.oooDelineate and restrict access to the site. If access into the delineated area is gained,appropriate PPE must be worn.Appropriate warning signs should be placed at the affected area. Refer to the NationalOccupational Health and Safety Commission‟s Code of Practice for the Managementand Control of Asbestos in Workplaces [NOHSC: 2018(2005)].Asbestos-containing debris should be removed to NSW DECCW licensed landfill. Ifasbestos-containing materials are found outside the removal area within siteboundaries, further removal will be required. This process should be repeated untilthe subject area is completely remediated.oAll removal procedures should be conducted by an experienced AD1-B or AD1-Flicensed removal contractor in accordance with the Code of Practice for the SafeRemoval of Asbestos [NOHSC: 2002 (2005)].4224 63 North Pde Mt Druitt PSI.v1 final Page 10
Preliminary Site Investigation at63 North Pde, Mt Druitt NSW A. D. Envirotech Australia Pty LtdooAll equipment used during the removal task should be decontaminated by using awash bay incorporating both wet and dry decontamination procedures, in accordancewith the Code of Practice for the Safe Removal of Asbestos [NOHSC: 2002 (2005)],before they are removed from the asbestos work area.Monitoring for airborne asbestos in accordance with the Guidance Note on theMembrane Filter Method for Estimating Airborne Asbestos Fibres[NOHSC:3003(2005)] should be carried out by a NATA accredited laboratory duringand after the removal operations. Refer to Clause 50 and 51 for the WorkCover 2001Safety Regulation for requirements.A Clearance Certificate should be prepared upon the completion of the removal works.Once the asbestos removal operations are complete and the site is safe with respect to theasbestos hazard, the site can be deemed suitable for the proposed development.Waste ClassificationUndertake Toxicity Characteristics Leaching Procedure (TCLP) analysis of nickel for sample4224-4A.It is the opinion of ADE that if the proposed analytical program is implemented all samplesshould meet the NSW DECC (2008) classification of General Solid Waste. Further samplingand analysis will be required depending on the projected volumes of soil to be transported to aNSW licensed landfill.StructuresConduct a Hazardous Materials Audit/Survey on the remaining concrete structure prior todemolition/refurbishment. Australian Standard 2601 Demolition of Structures requires thatbefore commencement of any stripping or demolition, the site structures should be examined todetermine the presence of hazardous materials including asbestos, lead in paint, lead in dust,synthetic mineral fibre (SMF) and poly-chlorinated biphenyls (PCBs).When commencing the demolition of the structure, it is recommended that asbestos and otherhazardous materials be removed by a licensed removalist.General Site ContaminationUpon completion of concrete removal operations the soils surface should be inspected by anappropriately qualified environmental scientist or engineer.If any unexpected contamination is identified within the subsurface environment, the site shouldbe inspected by an appropriately qualified environmental scientist or engineer.If groundwater is to be encountered during the construction of the development, a GroundwaterAssessment should be undertaken.4224 63 North Pde Mt Druitt PSI.v1 final Page 11
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MOUNT DRUITT COMMUTER CARPARKREVIEW
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Mount Druitt Commuter Car ParkRevie
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Commuter Car Park and Interchange P
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Mount Druitt Commuter Car ParkTraff
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Transit services provided at Mount
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Attachment 1: Origin Destination Su
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MOVEMENT SUMMARYMt DruittSouthern C
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MOVEMENT SUMMARYMt DruittNorth Para
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MOVEMENT SUMMARYMt DruittNorth Para
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MOVEMENT SUMMARYMt DruittJirrang Cl
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MOVEMENT SUMMARYMt DruittJirrang Cl
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MOVEMENT SUMMARYMt DruittMount St /
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MOVEMENT SUMMARYMt DruittMount St /
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MOVEMENT SUMMARYMt DruittSherbrooke
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MOVEMENT SUMMARYMt DruittSherbrooke
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KMH-2010123a REF Rev 4 docStatus: F
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Commuter Car Park Mt DruittVisual I
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Page 212 and 213: Commuter Car Park Mt DruittVisual I
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