600 650 700 750 800 850 900 950 1,000 1,050 1,100 1,150 May-1988 May-1989 May-1990 May-1991 May-1992 May-1993 May-1994 May-1995 May-1996 May-1997 May-1998 May-1999 May-2000 May-2001 May-2002 May-2003 May-2004 May-2005 May-2006 May-2007 May-2008 May-2009 May-2010 May-2011 May-2012 May-2013 May-2014 May-2015 May-2016 May-2017 May-2018 May-2019 May-2020 Groundwater level (RL m) Mine Dewatering Level P8-1 in Andesite - Tip Level RL975.66m P8-2 in Andesite - Tip Level RL1044.71 P8-3 in Ignimbrite - Tip Level RL1092.9m P8-4 in Boulder Alluvium - Tip Level RL1111.8m OCEANA GOLD (NEW ZELAND) LTD Piezometer Readings in Borehole P8 Ref. No: 9049 Date: Sep 2020 Drawn: MC File: 9049-Piezometer Engineering Geology Ltd Unit 7C, 331 Rosedale Rd, PO Box 301054, Albany Auckland , NZ Ph (09) 4862546 Fax (09) 4862556 Figure 43
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