Opus International Consultants (NSW) Pty Ltd - Transport for NSW ...

Preliminary Site Investigation at63 North Pde, Mt Druitt NSW A. D. Envirotech Australia Pty Ltd9 ASSESSMENT CRITERIAThe criteria specified in the following publications were used for the site assessment: Guidelines for Assessing Service Station Sites, NSW EPA 1994 Guidelines for the NSW Site Auditor Scheme, NSW EPA 2006, 2 nd Edition National Environmental Protection Measure, 1999 (NEPM) Waste Classification Guidelines - Part 1: Classifying Waste, NSW DECC, April 2008 wereused to classify soil for disposal purposes.The Health-Based Investigation Levels assigned for commercial or industrial sites (Criteria NEHF F)and threshold concentrations for sensitive land use were applied. The contaminant thresholds listedbelow in Table 5 are levels at which further investigation and evaluation is required to assess whetherthe site is considered suitable for the proposed land-use.For the purposes of “off-site disposal” of soil materials the NSW DECC (2008) Waste ClassificationGuidelines criteria were applied.Table 6 Site Assessment Criteria for soil contamination, mg/kg (unless otherwise specified).ContaminantHealthBasedInvestigationLevel(NEHF F)4224 63 North Pde Mt Druitt PSI.v1 final Page 34ProvisionalPhytotoxicityInvestigationLevels(PPIL)Adopted GuidelineMetals: Arsenic 500 20 National EnvironmentalProtection (Assessment of SiteContamination) Measure(NEPM), 1999 andCadmium 100 3Chromium 100 400Copper 5000 100Lead 1500 600Mercury 75 1Nickel 3000 60Zinc 35000 200TPH: C 6 - C 9 65 NVC 10 – C 36 1000 NVBTEX: Benzene 1 NVToluene 1.4 NVEthyl Benzene 3.1 NVXylene 14 NVOCP: Aldrin 50 * NVDieldrin 50 ** NVChlordane 250 NVDDT+DDD+DDE 1000 NVHeptachlor 50 NVPAHs: Benzo(a)pyrene 5 NVtotal 100 NVPCBs: total 50 NVPhenols: total 42500 NVCyanide: total 1250 NV* The maximum allowed level for Aldrin if no Dieldrin is present** The maximum allowed level for Dieldrin if no Aldrin is presentGuidelines for the NSW SiteAuditor Scheme, NSW DECC2006, 2 nd EditionNSW EPA Guidelines forAssessing Service Stations(1994)National EnvironmentalProtection (Assessment of SiteContamination) Measure(NEPM), 1999 andGuidelines for the NSW SiteAuditor Scheme, NSW DECC2006, 2 nd Edition