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Preliminary Site Investigation at63 North Pde, Mt Druitt NSW A. D. Envirotech Australia Pty LtdA contaminant concentration in soil will be deemed acceptable if:all samples meet the specified acceptance criteria;the 95 % upper confidence limit (UCL) average concentration of each contaminant is belowthe acceptance criteria; orno individual exceedance is greater than 2.5 times the remediation acceptance criteria.If a location is found to have more than 2.5 times a contaminant‟s acceptable limit, then it will beclassified as a “hot-spot”, requiring further assessment, remediation, removal or management.If the calculated 95% UCL of the arithmetic average concentration of the contaminant is above theiracceptance criteria, then the soil will be considered contaminated, requiring further assessment,remediation, removal or management.If the 95 % UCL of the arithmetic average concentrations is below the acceptance criteria, and noconcentrations are at a “hotspot” level, slight elevations above the acceptance criteria may beconsidered to pose an insignificant human health risk since most of the site will be covered byconcrete and road-base.The Provisional Phyto-toxicity Investigation Levels (PPILs) are generic values based on phytotoxicitydata for plant response to specific contaminants in a sandy loam matrix. As soils areaccessible on the site, the contamination assessment must apply these criterion.There are currently no national or NSW guidelines for asbestos in soil. Enhealth have a documententitled „Guidelines for Asbestos in the Non-Occupational Environment‟ (2005), which gives someguidance on assessing and managing asbestos in soil although does not provide a thresholdconcentration or investigation level for asbestos.In consultation with WorkCover NSW and through the Enhealth (2005) „Guidelines for Asbestos inthe Non-Occupational Environment‟ document, ADE has adopted a conservative criterion forasbestos in soil being „no detectable asbestos‟ present in soils and/or no visible asbestos debris on site.4224 63 North Pde Mt Druitt PSI.v1 final Page 35
Preliminary Site Investigation at63 North Pde, Mt Druitt NSW A. D. Envirotech Australia Pty Ltd10 RESULTS10.1 SoilThe details of the analysis results are summarised in Table 7, 8 and 9. Explanatory notes are given atthe end of the tables.4224 63 North Pde Mt Druitt PSI.v1 final Page 36
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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 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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