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Warrawee Substation - Submissions Report - Transport for NSW ...

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4.6 Water Management4.6.1 Stormwater ManagementStormwater management and drainage <strong>for</strong> the site will be consistent with the relevant Ku-Ring-Gai Council Development Control Plan.4.7 Contamination, Spoil and Fill Management4.7.1 Soil ManagementAs part of the CEMP, a strategy must be developed to manage all soils disturbed, imported orexported from the Project. The strategy must address any mitigation measures relating tocontaminated soil management identified in the REF and be implemented <strong>for</strong> the duration ofconstruction.The strategy should include, but not limited to:(a) guidelines on how spoil material generated and fill imported by the Project will be sought,handled, stockpiled, reused and disposed, including the identification of spoil andstockpile volumes and locations; a target <strong>for</strong> the reuse of waste-derived material subjectto a resource recovery exemption as fill material <strong>for</strong> the Project;(b) management methods <strong>for</strong> stockpiles;(c) <strong>for</strong> identification, classification and removal of contaminated material;(d) the removal, stockpiling and reuse of topsoil from the site; and,(e) reporting to the Proponent.4.7.2 Importation of FillThe only fill material that may be received at the Project is:(a) virgin excavated natural material (within the meaning of the POEO Act); and/ or,(b) any other waste-derived material the subject of a resource recovery exemption undercl.51A of the POEO (Waste) Regulation 2005 that is permitted to be used as fill material.Any waste-derived material the subject of a resource recovery exemption received at thedevelopment site must be accompanied by documentation as to the materials compliancewith the exemption conditions and must be provided to the Proponent on request.All fill material used onsite must be free of asbestos, both bonded and friable.4.7.3 Unidentified ContaminationIf previously unidentified contamination is discovered during construction an investigationmust be undertaken to determine the nature, extent and degree of the contamination.Following this investigation, a remediation action plan must be developed and implemented ifrequired by OEH and/or the proponent. The level of reporting must be appropriate <strong>for</strong> thecontamination identified in accordance with OEH’s Guidelines <strong>for</strong> Consultants <strong>Report</strong>ing onContaminated Sites, (2000).Page 28

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