Supporting Technical Assessments

106 83 84 76 HQ Coring Push tube HQ Coring MW CWRS CW CWRS CW 54 43 26 W M W M S F-St F S 'L' S ML SM ML TOPSOIL: SILT with minor clay and trace rootlets; dark brown, soft, wet, low plasticity SILT with minor fine sand; brown, iron staining, firm to stiff, moist, no plasticity from 0.56m: becomes fine, some fine to medium poorly graded sand with minor clay from 0.96m: becomes some clay with trace fine sand, soft Silty fine to medium SAND; brown, loose, wet (behaves cohesively), poorly graded SILT with some fine sand and trace clay; light grey, soft, moist, no plasticity-low plasticity, (Ash?) Moderately weathered, fine to medium fabric, dark grey DACITE; strong; closely spaced fractures Completely weathered to residual soil, fine to medium fabric with mottling, reddish brown DACITE; very weak-extremely weak; breaks down with pressure to fine to coarse well-graded sand with some silt and minor fine angular gravel from 3.09m: becomes completely weathered, light brown, weak-very weak from 3.46m: becomes completely weathered - residual soil, brown, very weak-extremely weak from 4.5m: becomes completely weathered, extremely coarse to very coarse SAND, banding that forms planes of weakness, light brown, weak to very weak from 4.96m: banding ceased Termination Depth = 6m, Alluvium Coromandel Volcanics 1.3 [] 1.5 [] 1.8 [] 2.1 [] 6.0 [] -Push tube -Crushed zone at 1.94-2: fine to coarse angular gravel, gently inclined, undulating, smooth, strong Iron (Fe) staining -Push tube at 2.00m too hard -Joint at 2.17: Steeply inclined, undulating, smooth, very narrow (closed), strong Iron and Manganese -Joint at 3.09: Gently inclined to moderately inclined, stepped, smooth, very narrow -Joint at 4.064.51: Very steeply inclined, undulating, smooth, very narrow (closed), strong Manganese -Joint set 1 at 4.5-4.96: Extremely closely spaced to very closely spaced, subhorizontal to gently inclined, undulating, rough, vein, strong Manganese -Joint at 5.41: Subhorizontal, undulating, rough, very narrow, strong Manganese PO Box 6543 Auckland 1141 GHD Limited Project Quattro OceanaGold Ltd Waihi 51/37083 Site Identification: Logged: Processed: Checked: Project: Client: Site: Job No.: WRS04 JM/HB AS HB BOREHOLE with Piezo LOG Commenced: 08-Jun-17 Completed: 08-Jun-17 Contractor: Perry Geotech Datum: Total Depth: 6.0m Sheet 1 of 1 BOREHOLE LOG NZ ALT 5137083_NZ LIB_PROJECT QUATTRO - WRS HB COMPLETE DRAFT_REV 1 FINAL.GPJ NZ GINT DATA TEMPLATE VER 1.3.GDT 30/4/19 Piezometer Shear Vane: Drilling Method 1 2 3 4 5 6 7 8 9 10 -90 Comments: ROCK DESCRIPTION: Weathering, colour, fabric, ROCK NAME (Formation Name) W MS VS S Water Bore Diameter (mm): Inclination: VW ES Core Run / Recovery (%) 20 60 200 600 2000 SOIL DESCRIPTION: (Soil Code), Soil Name [minor MAJOR], colour, structure [zoning, defects, cementing], plasticity or grain size, secondary components, structure. (Geological Formation) / Defect Spacing (mm) RQD (%) Estimated Rock Strength EW Graphic Log Classification Support / Casing (m) JD Tractor Rig Depth (m)/ [Elev.] Equipment: Weathering Consistency/ Relative Density Moisture Condition TESTS & SAMPLES / ROCK MASS DEFECTS: Depth, Type, Inclinations, Roughness, Texture, Aperture, Coating Geological Fm 1 2 3 4 5 6 7 8 9 10 96

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