Supporting Technical Assessments

Table D.1 Gladstone Permeability Test Data Bore ID Ͳ Shallow Wells Test Aquifer Type Assessed Permeability (m/s) Solution Screen Comments FHT 1 4.5EͲ08 RHT 1 2.8EͲ08 FHT 2 3.6EͲ08 RHT 2 2.5EͲ08 Min Max FHT 1 2.0EͲ08 RHT 1 7.7EͲ08 FHT 2 <4EͲ08 Recovery did not reach 70% RHT 2 <4EͲ08 Recovery did not reach 70% FHT 3 6.0EͲ08 RHT 3 <4EͲ08 Recovery did not reach 70% Min Max Bore ID Ͳ Deep Wells Test Aquifer Type Assessed Permeability (m/s) Solution Screen Comments FHT 1 Ͳ FHT2 Not analysed Recovery did not reach 50% RHT 1 ͲRHT 3 Not analysed Recovery did not reach 50% FHT 3 3.8EͲ08 Hyder et al, 1994 (KGS model) FHT 1 9.8EͲ08 Butler, 1998 (Confined) RHT 1 2.3EͲ08 Hyder et al, 1994 (KGS model) FHT 2 1.2EͲ07 Butler, 1998 (Confined) RHT 2 3.8EͲ08 Hyder et al, 1994 (KGS model) FHT 3 1.1EͲ07 Butler, 1998 (Confined) RHT 3 2.6EͲ08 Hyder et al, 1994 (KGS model) Min Max 4.5EͲ08 n/a <1EͲ08 <4EͲ08 2.0EͲ08 7.7EͲ08 GLD01 Unconfined 2 m Screen 5.5 Ͳ 7.5 m Alluvial silt/clay GLD03 Unconfined 2 m Screen 6 Ͳ 8 m Volcanics (Completely weathered, very narrow Ͳ tight joints with iron oxide staining, crush zones with iron oxide staining). Bouwer and Rice, 1976 (Unconfined) Bouwer and Rice, 1976 (Unconfined) for all GLD03: Geomean Range: Geomean Range: 3.3EͲ08 2.5EͲ08 GLD01a 2 m Screen 11.7 Ͳ 13.7 m Alluviual silt/clay (water pressure increase noted during drilling). GLD03a Confined 3 m Screen 17 Ͳ 20 m Volcanics (highly weathered, tight to narrow joints with iron oxide staining). Confined Geomean Range: Geomean Adopted value 5.5EͲ08 2.3EͲ08 1.2EͲ07

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