11.07.2015 Views

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

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

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

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Review of Environmental Factors<strong>Glenbrook</strong> commuter car park and interchange upgrade• Soil sampling of material from the surface to 0.5m, or at any changes in soil stratigraphyand within any areas of apparent contamination• Twenty‐five soil samples underwent laboratory analysis.Soil Assessment CriteriaThe criteria specified in the following publications were used <strong>for</strong> the site assessment:• Guidelines <strong>for</strong> Assessing Service Station Sites, <strong>NSW</strong> EPA 1994• National Environmental Protection Measure, 1999 (NEPM)• Waste Classification Guidelines Part 1: Classifying Waste (DECCW, 2008)In consultation with WorkCover <strong>NSW</strong> and through the Enhealth (2005) Guidelines <strong>for</strong> Asbestos in theNon‐Occupational Environment document, ADE adopted a conservative criterion <strong>for</strong> asbestos in soil being‘no detectable asbestos’ present in soils and/or no visible asbestos debris on site.6.7.3 Soil assessmentA summary of the analysis of soil samples and soil assessment criteria is provided in Appendix D.The site meets the NEPM Schedule B(1) HIL (F) guideline with regards to heavy metals (arsenic, cadmium,chromium, copper, lead, nickel, zinc), TPHs, BTEX, PAHs, OCPs/OPPs, PCBs, Total Phenolics and Cyanide.One piece of asbestos cement was detected in the DSI site inspection and collected during samplingoperations. No further asbestos was identified during the site inspection. None of the ten soil samplescollected during the hand digging operations contained asbestos.All remaining samples from throughout the site passed the OEH adopted criteria assigned <strong>for</strong> GeneralSolid Waste <strong>for</strong> heavy metals (arsenic, cadmium, chromium, lead, mercury and nickel), TPHs, BTEX, PAHs,OCPs/OPPs, PCBs, Total Phenolics and Cyanides.During the sampling procedures it was evident that the soil materials did not vary in character within thesite. Preliminary waste classification <strong>for</strong> materials <strong>for</strong> the majority of the site meets the wasteclassification of General Solid Waste (non‐putrescible). Preliminary waste classification <strong>for</strong> materialswhere the asbestos fibre was found meets the waste classification of General Solid Waste(non‐putrescible) mixed with special waste bonded asbestos.Based on the findings of the PSI and DSI contamination assessments, ADE concludes that the site isappropriate <strong>for</strong> the proposed development subject to the mitigation measures described in Section 6.7.4.6.7.4 Mitigation measures• Further sampling and analysis (including TCLP analysis) may be warranted in order toclassify the soils in accordance with the adopted OEH Waste Classification Guidelines. Thesampling frequency would be dependent on the projected volumes of soil to be removedand transported to an OEH licensed landfill.• Any works undertaken within Subject Area B (Refer to Section 10.3) involving excavationof the soil surface should be undertaken in accordance with the <strong>NSW</strong> Code of Practice:How to Safely Remove Asbestos (Section 274 of the Work Health and Safety Act, 2011).Ref No: 2260812 63

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