B-6 – Area 6 – Assessment of Environmental Effects 35 Substance (UN number) Hazard Classification (Post-2021) Proposed maximum volume Proposed Location adjacent to Baxter Road. Diesel Flammable liquids Category 4, Aspiration hazard Category 1, See Note 1. Carcinogenicity Category 2, Hazardous to the aquatic environment chronic Category 2 40,000 L Various units: Selfbunded isotainers (20,000 L) or portable tanks (<6,000 L) Oils and greases Flammable liquids Category 4, Aspiration hazard Category 1, See Note 1. Carcinogenicity Category 2, Hazardous to the aquatic environment chronic Category 2 8000 L Various units (tank, IBC or 205 L drum) located at the workshop 3.6 CLOSURE AND REHABILITATION At closure, up to approximately 4.0 Mm3of surplus rock may be left at the NRS. The final NRS footprint will be graded to achieve gentle slope and rehabilitated with a topsoil cover and grass. While it is anticipated that the topsoil stockpiles constructed around the NRS will be fully recovered for rehabilitation works, should any surplus topsoil remain, this will remain and be planted in accordance with the Rehabilitation and Closure Plan. The indicative closure profile is shown in Figure 17.
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