Supporting Technical Assessments

Waihi North Project Preliminary Site Investigation (Ground Contamination) Williamson Water & Land Advisory Limited Date Location Product Event description Significance N M S 4 December 2021 Operator discovered valve was leaking during the weekly reagent check. RO plant has not been operational since June and the last preservation was late Nov. Spill was contained within the portable bund and 98% (estimate) of product was recovered back to the IBC. Spill volume was approx. 300l total and 6 litres was lost (not returned to IBC). Cost ca. $20. Valve has been in operation for est. 6 years.

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