B A T H U R S T I S L A N D W U R A N K U W U A B O R IG I N A L C O R P O R A T I O N M I L I K A PI T I C O M M U N I T Y G O V E R N M E N T C O U N C I L P I R L A N G I M B I C O M M U N I T Y G O V E R N M E N T C O U N C IL CONSERVATION and NATURAL RESOURCES GROUP Less than 10 metres 10 to 20 metres 20 to 30 metres 30 to 40 metres 40 to 50 metres 50 to 60 metres Greater than 60 metres SHALLOW UNCONFINED AQUIFER POTENTIAL DEEP CONFINED AQUIFER POTENTIAL kilometres 0 20 10 30 kilometres WATER RESOURCES of the TIWI ISLANDS - MAP 2 Natural Heritage Trust Helping Communities Helping Australia A Commonwealth Government Initiative DEPTH FROM SURFACE TO TOP OF THE MOONKINU MEMBER VAN DIEMAN SANDSTONE THICKNESS HOMELAND SUPPLY SMALL HOMELAND SUPPLY LITTLE CHANCE OF WATER Moderate success rate, < 0.5 L/s Areas where groundwater may be brackish due to the effects of salt water intrusion. Moderate to high success rate, 0.5 - 10.0 L/s, depending on sandstone thickness (Map 1 - Spring Flow of the Tiwi Islands) B A Line of cross-section NO CHANCE OF WATER GOOD CHANCE OF WATER No potential for obtaining water from deep confined sandstone aquifer Potential for obtaining water from deep confined sandstone aquifer. Water quality may be brackish near the coast and tidal creeks -100 Low success rate Elevation (metres AHD) of the top of the sandstone aquifer For further information contact: Manager, Water Resources, Natural Systems Division, Conservation and Natural Resources Group, Department of Infrastructure, Planning and Environment. Ph. (08) 8999 3606, Fax. (08) 8999 3666 Goyder Centre, Chung Wah Terrace, Palmerston, Northern Territory of Australia. Map compiled by T. Haig and A. Matsuyama, Project coordination by P. Jolly, Cartography by L. Fritz, Spatial Data and Mapping, Conservation and Natural Resources Group, Department of Infrastructure, Planning and Environment Prepared and produced by the Conservation and Natural Resources Group, Department of Infrastructure, Planning and Environment, Northern Territory of Australia, July, 2003. This product and all material forming part of it is copyright belonging to the Northern Territory of Australia. You may use this material for your personal, non-commercial use or use it within your organisation for non-commercial purposes, provided that an appropriate acknowledgement is made and the material is not altered in any way. Subject to the fair dealing provisions of the Copyright Act 1968, you must not make any other use of this product (including copying or reproducing it or part of it in any way) unless you have the written permission of the Northern Territory of Australia to do so. The Northern Territory of Australia does not warrant that the product or any part of it is correct or complete and will not be liable for any loss damage or injury suffered by any person as a result of its inaccuracy or incompleteness. Auslig Topo-250k data supplied through Land Information Services, Department of Infrastructure, Planning and Environment, Darwin, Northern Territory of Australia. Design File: Tiwi-Is_250_Wrs_52m Plot File: Tiwi-Islands_Wrs_Map2 Tiwi place names marked have been given with the permission of the traditional owners specially for use on this map. If they are to be used elsewhere, it is necessary to gain approval from the traditional owners. The Tiwi Land Council can be contacted in this regard. A B C D E F H G A DISTANCE (km) 150 0 -100 0 10 20 30 40 -50 50 100 ELEVATION - metres A.H.D. CROSS-SECTION A-B 150 0 0 10 20 30 -50 50 100 ELEVATION - metres A.H.D. B DISTANCE (km) Extent of tidal effect - axis of meandering channel of Johnson Creek Coastal floodplain Barramundi Creek Upper tributary starts Yimpinari O/S RN 32979 C CROSS-SECTION C-D Takamprimilli Creek Takamprimilli O/S RN 32977 Pickertaramoor forestry area D Monitoring Bore RN 32990 Nguiu Paru Aspley Strait RN 32871 RN 32874 RN 32872 Creek & road TD 222.66 TD 163.66 H 150 0 -100 -50 50 100 ELEVATION - metres A.H.D. Three Ways RN 9433/37 Taracumbi O/S RN 32833 E Creek RN 21791 RN 24207 RN 24209 RN 27857 RN 23980 RN 27992 RN 27851 RN 27959 CROSS-SECTION E-F 760000mE 620000mE 640000mE 660000mE 680000mE 700000mE 720000mE 620000mE 640000mE 660000mE 680000mE 700000mE 720000mE 740000mE 8760000mN 8760000mN 8740000mN 8740000mN 8720000mN 8720000mN 8700000mN 8700000mN 8680000mN 8680000mN 740000mE 760000mE 760000mE 620000mE 640000mE 660000mE 680000mE 700000mE 720000mE 620000mE 640000mE 660000mE 680000mE 700000mE 720000mE 740000mE 8760000mN 8760000mN 8740000mN 8740000mN 8720000mN 8720000mN 8700000mN 8700000mN 8680000mN 8680000mN 740000mE 760000mE 760000mE 620000mE 640000mE 660000mE 680000mE 700000mE 720000mE 620000mE 640000mE 660000mE 680000mE 700000mE 720000mE 740000mE 8760000mN 8760000mN 8740000mN 8740000mN 8720000mN 8720000mN 8700000mN 8700000mN 8680000mN 8680000mN 740000mE 760000mE -150 0 DISTANCE (km) 10 20 30 40 50 60 -150 RECHARGE ZONE RECHARGE ZONE RECHARGE ZONE RN 27923 Van Dieman Sandstone Van Dieman Sandstone Van Dieman Sandstone 150 0 -100 0 -50 50 100 G CROSS-SECTION G-H F ELEVATION - metres A.H.D. RN 29295 RN 29293 RN 29290 RN 29294 RN 29291, RN 29292 RN 29296, RN 29297 Mt. Hurd Barge Landing Road Van Dieman Sandstone Grey claystone with siltstone Wangarlu Mudstone Registered number of bore RN 32874 Bore (cross-section only) TD 163.66 Depth of bore Moonkinu (Sandstone) Saturated shallow aquifer (Van Dieman Sandstone) Moonkinu Member (Sandstone) Wangarlu Member (sticky grey clay) Wangarlu Member (sticky grey clay) Wangarlu Member (sticky grey clay) Van Dieman Sandstone Moonkinu Member (Sandstone) Moonkinu Member (Claystone) Moonkinu Member (Claystone) Moonkinu Member (Sandstone) Moonkinu Member (Claystone) Member Van Dieman Sandstone Moonkinu Member (Claystone) LEGEND DISTANCE (km) 1 2 3 4 5 6 Impermeable base Milikapiti Borefield Nguiu Borefield Water table White, tan and brown sandstone Grey sandstone and claystone Grey, sticky to firm claystone Regional Shallow Aquifer Regional Confining Layer Regional Deep Aquifer Quaternary & Tertiary Cretaceous Erosional Unconformity Alluvium and Van Dieman Sandstone Moonkinu Member (Claystone) Moonkinu Member (Sandstone) -200 -150 -150 -100 -100 -100 -100 -50 -50 -50 -50 0 0 0 0 +10 +10 +10 +10 Nguiu MELVILLE ISLAND Milikapiti (Snake Bay) Pickertaramoor BATHURST ISLAND Pirlangimpi (Garden Point) Taracumbi O/S Wurankuwu O/S Paru O/S Yimpinari O/S Takamprimilli O/S Nguiu MELVILLE ISLAND Milikapiti (Snake Bay) Pickertaramoor BATHURST ISLAND Pirlangimpi (Garden Point) Taracumbi O/S Wurankuwu O/S Paru O/S Yimpinari O/S Takamprimilli O/S Nguiu MELVILLE ISLAND Milikapiti (Snake Bay) Pickertaramoor BATHURST ISLAND Pirlangimpi (Garden Point) Taracumbi O/S Wurankuwu O/S Paru O/S Yimpinari O/S Takamprimilli O/S STRAIT ASPLEY TIMOR SEA BEAGLE GULF STRAIT DUNDAS STRAIT CLARENCE TIMOR SEA STRAIT ASPLEY TIMOR SEA BEAGLE GULF STRAIT DUNDAS STRAIT CLARENCE TIMOR SEA STRAIT ASPLEY TIMOR SEA BEAGLE GULF STRAIT DUNDAS STRAIT CLARENCE TIMOR SEA