Service Description: Hydrogeological summary with water supply and pipeline infrastructure development prioritization for Flinders Island, Tasmania, Australia. This webmap illustrates groundwater elevation and flow direction, total dissolved solids (TDS) as a proxy for groundwater quality, hydrogeologic units, and above-ground land use. The island’s geology reflects a regional pattern similar to northeastern Tasmania, with rugged, fractured Ordovician–Devonian metasedimentary and granitic rocks in the southwest and more permeable Tertiary and Quaternary sediments dominating the northern and eastern lowlands. Aquifer types include both fractured rock and porous media, with the most significant groundwater resources found in coastal sand deposits and localized basalt units. In the southern region, fractured granites and basalt exhibit variable but sometimes significant secondary porosity through fractures and vesicular zones, contributing to localized but important groundwater sources, such as those supporting the Lady Barron area. These hydrogeologic and land-use datasets support the prioritization and routing of water supply infrastructure by identifying suitable parcels, evaluating groundwater conditions, and informing construction feasibility.
Service ItemId: 637399ac3ed34a40a6c983fd84c71dd5
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Spatial Reference: 102100 (3857)
Initial Extent:
XMin: 16437643.3676108
YMin: -4914751.15368313
XMax: 16535785.2391703
YMax: -4828945.85857102
Spatial Reference: 102100 (3857)
Full Extent:
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YMin: -30240971.9583858
XMax: 20037507.0671792
YMax: 30241037.6481455
Spatial Reference: 102100 (3857)
Units: esriMeters
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