Glenbrook Sation REF (pdf 3.15MB) - Transport for NSW - NSW ...

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Review of Environmental FactorsGlenbrook commuter car park and interchange upgradeaffected, nor would there be more than a very minor visual affect on that element of the listeditem.6.6.5 Proposed mitigation measures• If Aboriginal heritage items are discovered during construction, works in the area of thediscovery would cease until the significance of the items is established by anarchaeologist.• Under Section 14 of the SEPP (Infrastructure) Transport for New South Wales wouldprovide written notice of the intention to carry out the proposed works, with a copy ofthis SoHI to the BMCC.• As the small section of rail track to be removed (approximately 50 metres) is highly likelyto be connected to the history of the wider Glenbrook Railway Deviation and developmentof the Glenbrook Railway Station, an archival recording should be prepared for the existingsection of track. This should follow the guidelines for Items of Local Heritage Significanceas outlined in the NSW Heritage Branch publication How to Prepare Archival Records ofHeritage Items. The archival record should be submitted to RailCorp and the BMCC LocalHistory Library for their records.• It is recommended that test excavations be carried out on site for any deposits. Inaccordance with Section 146 of the Heritage Act, in the event of any additional significantrelics being uncovered when works commence, the NSW Heritage Branch would benotified and works may need to temporarily cease.• A heritage induction would be provided to workers before construction begins, informingthem of the location of known heritage items and guidelines to follow if unanticipatedheritage items or deposits are located during construction.6.7 CONTAMINATIONA.D. Envirotech Australia Pty Ltd carried out a Stage II Detailed Site Contamination Investigation for thesite of the proposed commuter car park. The report is summarised in this section.The objectives of the investigation were to:• Provide comprehensive information on the issues raised in the Phase I PreliminaryInvestigation• Assess the site condition• Assess and describe the source, type, extent and level of contamination (if present)• Determine the human health and environmental risk (if present)• Provide a preliminary waste classification in accordance with the DECCW WasteClassification Guidelines• Provide an assessment of site contamination for the suitability of the proposeddevelopment.Ref No: 2260812 61
Review of Environmental FactorsGlenbrook commuter car park and interchange upgradeFindings of Phase 1 PreliminaryThe findings of the Phase I PSI are as follows:• The site has been predominantly exposed to rail corridor uses since the early 1900’s.• The site appeared clean and well maintained at the time of inspection.• No intrusive works were undertaken to assess the subsurface environment.• Background searches indicated that the site has predominantly been subjected to use as arail corridor.• The potential contamination types that were identified for the site include: AsbestosContaining Materials, Heavy metals, PAHs, TPHs, OCPs, OPPs, Phenols, Cyanide. On thesegrounds the report recommended that “a Phase II DSI should be conducted to determinethe type, degree and extent of any contamination and possible human health and/orenvironmental risk”.6.7.1 Background researchThe search of historical information has indicated that the site of the proposed commuter car park hasbeen used for a combination of rail and car parking purposes since the 1950’s.The top soil generally consisted of primarily ballast material with some loamy soil present. Evidence ofbuilding materials, such as asbestos fibre cement was present in one location. There were two ballaststock piles located at the north‐west corner of the site which were outside the scope of the study.No hydrocarbon staining was evident on the soil/ballast surface during the site inspection. The subjectarea has a gradual slope towards the east and was adjoined by a steep embankment towards thenorthwest end of site that levelled out towards the east.The soil surface was predominantly covered with a thin layer of ballast. Dense vegetation, shrubs andtrees lined the northern barrier of the site. The vegetation appeared healthy with no signs of stress ordiscolouration at the time of inspection with exception to three trees of the same species on the westernside of the northern border that appeared to be dead. No rubbish was observed within the site.A search for registered groundwater wells within 1 km radius of the site was undertaken by ADE via theNSW Office of Water (NSW Groundwater works, NR Atlas website). Four boreholes were found. Nogroundwater quality data with regard to contaminants of concern was available within the search area.A review of Acid Sulphate Soil Risk Maps revealed ‘no known occurrence of acid sulphate soil materials’(A.D. Envirotech Australia 2012).A search of the NSW OEH online database did not indicate the existence of any notices for the site underSection 58 of the Contaminated Land Management Act 1997.6.7.2 Site investigation and assessmentThe site investigations consisted of:• Detailed site inspection• Hand digging of ten boreholes covering the site in a grid patternRef No: 2260812 62
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TERMS AND ABBREVIATIONSReview of En
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COMMUNITY AND STAKEHOLDER CONSULTAT
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Glenbrook Sation REF (pdf 3.15MB) - Transport for NSW - NSW ...

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