EGL Ref: 9018 22 June 2022 Page 29 WAI-985-000-REP-LC-0006_Rev0.docx This report shall only be read in its entirety. The NRS is required to effectively manage overburden materials from GOP and MOP4 during operation for TSF construction and backfill of the underground mines for the WNP. In closure it will permanently store surplus overburden earth and rock from open pit and underground mining that is not used for Tailings Storage Facility (TSF) construction or underground and open pit backfill. NRS will be required to stockpile both NAF and PAF materials. This technical report presents the proposed NRS design, and construction, operation, maintenance and surveillance strategies, which have been successful for the management of the existing TSF embankments and stockpiles at Waihi.
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