Supporting Technical Assessments

5 Tonkin & Taylor Ltd Hazardous Substances Technical Assessment – Waihi North Project - Waihi Processing Plant, Water Treatment Plant and Development Site Oceana Gold (New Zealand) Limited June 2022 Job No: 1015212.1000 vRev0 Figure 2.2: Location of hazardous substances activities associated with this application within OGNZL landholding Source: Aerial imagery and property boundary information sourced from the LINZ Data Service and licensed for re-use under the Creative Commons Attribution 3.0 New Zealand licence 2.2 Sensitivity of local environment The township of Waihi is located at the foot of the Coromandel Peninsula and is a historical gold mining town. The Martha Open Pit mine is located directly on the north-eastern edge of the township (approximately 300 m from the township centre). The township extends around the Martha Open Pit mine on the western, southern and eastern sides. The area of OGNZL owned land where the Processing Plant and Water Treatment Plant are located is east of the Martha Mine and is located on the outskirts of the Waihi township in the Martha Mineral Zone under the HDP as shown inFigure 2.3 below. The following separation distances to sensitive activities apply:  The Processing Plant and Water Treatment Plant area are approximately 1.7 km from the centre of Waihi and 400 m away from the nearest residential area at Barry Road.  The Class 1 storage facility at the Development Site is approximately 2.8 km from the centre of Waihi. The closest dwellings are located in the Rural Zone to the north and northwest of the site, with approximately 1 km separation to the nearest off-site dwelling. There is one dwelling located within the Martha Mineral Zone and owned by OGNZL which is approximately 900 m north of the proposed Development Site.  The relocated LPG tanks at the western edge of the Development Site are approximately 700 m from the nearest residences located to the northeast.

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