Supporting Technical Assessments

Waihi North Project Preliminary Site Investigation (Ground Contamination) Williamson Water & Land Advisory Limited Photograph date (source) Activities Aerial image 1982 Retrolens (SN5944 C/6) The site is largely unchanged. Surrounding land densifies with residential redevelopment in the north and west with land in the south and east remaining largely unchanged. 1991 Retrolens (SN9124 C/29) The site has been redeveloped into the Processing Plant which occupies the central portion of the site. Features observed include: • Ponds associated with the WTP. • Tanks, potentially used for water treatment, storage of diesel or other chemicals (cyanide, acids) • Ore stockpile pad • Conveyor belt Many of the remaining features are as they are today. 1999 Retrolens (SN12539 B/9) There are no significant changes relative to the 1991 aerial photograph. Surrounding land continues to densify with residential properties. 2012 – 2013 LINZ - Waikato The Processing Plant has expanded and now occupies the majority of the site’s footprint. It has also expanded and encroaches onto to the property to the north. A new pond is observed in the northern corner of the site. Surrounding land remains largely unchanged.

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