Boffa Miskell Ltd | Waihi North Project | Landscape and Visual Effects | 51 8.1.1 Zoning As illustrated on Figure 5, the proposed NRS, temporary stockpiles and collection pond are all located on land zoned Martha Mineral Zone. 8.2 Proposed Development NRS footprint covers a total area of approximately 95 ha and reaches a maximum elevation of approximately 177 masl (see Figure 15). During operation, three temporary topsoil stockpiles and a collection pond will also extend beyond the northern and western toe of the proposed NRS footprint and cover an additional combined area of approximately 6.4 ha. Temporary stockpiles will be established at the commencement of NRS whilst the NRS will remain operational during the life of the project. An existing workshop is also proposed to be relocated to the west of the proposed NRS. The eastern and northern edges of the proposed NRS accommodate a stream diversion and collection drain separated by a proposed perimeter road, all of which will be constructed at the commencement of the project. The stockpiles have been designed to contain up to 100,000 cubic metres of material constructed to a nominal height of 10 m above natural topography. The existing workshop structure, fuel bowser and grease storage facilities will need to be relocated approximately 160 m to the southwest as shown in Figure 12. At completion, temporary stockpiles will be removed and the NRS will be smoothed to reflect the adjoining rounded landforms and re-established in pasture and native shrubs. To the east and north of the proposed NRS, proposed diversion to existing water courses will support replacement native riparian vegetation. 8.3 Landscape Effects 8.3.1 Landform The proposed NRS will extend existing modification along an undulating elevated terrace along the true left bank of the Ohinemuri River. In landform terms, the proposed NRS will introduce an additional elevated and rounded ridge top to the north of the existing tailings storage facilities. This will occupy the immediate context of a surrounding sequence of rounded hill forms which include Union Hill, Black Hill and an unnamed hill which reaches a slightly higher elevation of 196 masl immediately to the east. This sequence of rounded hills provides a high level of visual containment within this area and increases the ability to accommodate the type of landform change proposed. Construction of the proposed NRS will involve the permanent transformation of an existing undulating terraced landform which includes areas presently accommodating rural land use and water courses with planted margins. This will adjoin existing areas of modification including the toe of existing tailings storage facilities and encompass existing storage areas and part of the conveyor already established in this area. At implementation, temporary topsoil stockpiles will extend along the northern periphery of the proposed NRS and reach a maximum height of approximately 10 metres. During operation these will be maintained as pasture and contribute visual containment of ongoing disturbance associated with the NRS within the site. Temporary stockpiles will be removed at completion and the final landform will be completed as a smoothed landform which resembles the adjoining existing rounded landforms. Once reestablished in pasture and low-level shrubs, the modified landform will become re-assimilated within this area and mitigate the potential for any long-term adverse landform effects.
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