Mount Morgan Mine Upper Mundic Gully TSF EA Amendment

GROUNDWATER LOG Mt Morgan

DRIL HOLE NO. WGMB03 PROJECT NAME Mt Morgan tailings reprocessing and rehab CLIENT Hertiage Minerals Pty Ltd ADDRESS PO Box 6, Mt Morgan, QLD 4714 LICENCE NO.

DRILLING DATE 18/12/2025 TOTAL DEPTH 186 DIAMETER 150mm CASING 50 mm uPVC SCREEN 50mm uPVC Slotted

COORDINATES 230856, 7383920 COORD SYS WGS84 COMPLETION SURFACE ELEVATION 323.93 WELL TOC

COMMENTS Western side OCP

LOGGED BY SC CHECKED BY TMcD

Material Description

Well Diagram

concrete cement grout

D D

WEATHERED DIORITE: Yellowish brown, soft sand and silt with some clay. All original fabric destroyed. DIORITE: Fresh, very hard diorite comprising coarse-grained white plagioclase feldspar and black hornblende or biotite.

320

10

310

20

300

30

290

40

280

50

270

60

260

70

250

80

240

90

230

100

220

110

210

120

200

130

190

140

180

150

170

160

160

170

bentonite

150

backfill

180

Termination Depth at:186 m

140

Disclaimer This bore log is intended for environmental not geotechnical purposes produced by ESlog.ESdat.net on 08 Mar 2026

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