Caloundra 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 9544
Version 1.5
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Surface expression GDE (points)

Known GDE

Caloundra Spring
Surface ecosystems dependent on the surface expression of groundwater
Permeable rocks (rocks with predominantly primary porosity)

Derived GDE - moderate confidence

Surface expression GDE (lines)

Derived GDE - high confidence

Surface ecosystems dependent on the surface expression of groundwater

Channels on coastal dunes below 50 metres elevation (no elevation limit on Fraser Island)
Surface ecosystems dependent on the surface expression of groundwater

Coastal sand masses (beach ridges) - SEQ (SEQ_RS_38)
Channels on coastal sand masses (beach ridges)

Near-permanent low-lying coastal swamps - SEQ (SEQ_RS_36)
Channels on near-permanent low-lying coastal swamps

Permanent low-lying coastal swamps - SEQ (SEQ_RS_37)
Channels on permanent low-lying coastal swamps

Alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_21)
Channels on alluvia with near-permanent flow

High rainfall permeable rocks (basalts) with near-permanent flow - SEQ (SEQ_RS_01)
Channels on or extending up to 1 kilometre from basalt and basalt colluvium with high rainfall and near-permanent flow
Permeable rocks (rocks with predominantly primary porosity)

Low-lying coastal swamps - PUM (PUM_RS_06c)

Sandstone overlying impervious rock - SEQ (SEQ_RS_13)
Channels on or extending up to 100 metres from sandstone overlying impervious rocks
Permeable rocks (rocks with predominantly primary porosity)

Derived GDE - low confidence

Sandstone with near-permanent flow - SEQ (SEQ_RS_09)
Channels excluding uppermost tributaries on sedimentary rocks with near-permanent flow

Surface expression GDE (areas)

81-100% GDE, known GDE

81-100% GDE, derived GDE - high confidence

Man-made canals with restricted connectivity to marine waters

Lacustrine and palustrine wetlands and riverine water bodies on coastal sand masses

Wetlands (excluding riverine REs) on coastal sand mass below 50 metres elevation (no elevation limit on Fraser Island)

Coastal sand masses (beach ridges) - SEQ (SEQ_RS_38)
Lacustrine and palustrine wetlands and riverine water bodies on coastal sand masses (beach ridges)

Man-made canals with unrestricted connectivity to marine waters

Near-permanent low-lying coastal swamps - SEQ (SEQ_RS_36)
Lacustrine and palustrine wetlands and riverine water bodies on near-permanent low-lying coastal swamps

Permanent low-lying coastal swamps - SEQ (SEQ_RS_37)
Lacustrine and palustrine wetlands and riverine water bodies on permanent low-lying coastal swamps

81-100% GDE, derived GDE - moderate confidence

Lacustrine and palustrine wetlands and riverine water bodies on alluvia
81-100 Derived GDE - Moderate Confidence

Alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_21)
Lacustrine and palustrine wetlands and riverine water bodies on alluvia with near-permanent flow
81-100 Derived GDE - Moderate Confidence

Low-lying coastal swamps - PUM (PUM_RS_06c)
Lacustrine and palustrine wetlands and riverine water bodies on low-lying coastal swamps
81-100 Derived GDE - Moderate Confidence

81-100% GDE, derived GDE - low confidence

Sandstone with near-permanent flow - SEQ (SEQ_RS_09)
Lacustrine and palustrine wetlands and riverine water bodies fringing channels, excluding uppermost tributaries, on sedimentary rocks with near-permanent flow

01-80% GDE, derived GDE - high confidence

01-80% GDE, derived GDE - moderate confidence

Lacustrine and palustrine wetlands and riverine water bodies on alluvia

Alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_21)
Lacustrine and palustrine wetlands and riverine water bodies on alluvia with near-permanent flow

01-80% GDE, derived GDE - low confidence

Terrestrial GDE

Treed regional ecosystems on coastal sand masses, up to 50 metres elevation
Surface ecosystems dependent on the sub-surface presence of groundwater

Non-wetland vegetation on coastal dunes (land zone 2 REs)
Surface ecosystems dependent on the sub-surface presence of groundwater

Coastal sand masses (beach ridges) - SEQ (SEQ_RS_38)
Treed regional ecosystems and riverine wetlands on coastal sand masses (beach ridges)
Surface ecosystems dependent on the sub-surface presence of groundwater

Near-permanent low-lying coastal swamps - SEQ (SEQ_RS_36)
Treed regional ecosystems and riverine wetlands on near-permanent low-lying coastal swamps

Permanent low-lying coastal swamps - SEQ (SEQ_RS_37)
Treed regional ecosystems and riverine wetlands on permanent low-lying coastal swamps

Treed regional ecosystems and riverine wetlands on alluvia

Treed regional ecosystems on alluvia with near-permanent flow

High rainfall permeable rocks (basalts) with near-permanent flow - SEQ (SEQ_RS_01)
Treed regional ecosystems and riverine wetlands fringing streams on basalt, basalt colluvium or within basalt contact zone, with high rainfall

Low-lying coastal swamps - PUM (PUM_RS_06c)
Treed regional ecosystems and riverine wetlands on low-lying coastal swamps

Sandstone overlying impervious rock - SEQ (SEQ_RS_13)
Treed regional ecosystems and riverine wetlands fringing channels or within sandstone contact zone

Sandstone with near-permanent flow - SEQ (SEQ_RS_09)
Treed regional ecosystems and riverine wetlands fringing channels, excluding uppermost tributaries, on sedimentary rocks with near-permanent flow

Subterranean GDE (caves)

Derived GDE - unknown confidence

Potential GDE aquifer

Unconsolidated sedimentary aquifers

Alluvial aquifers with near-permanent flow (SEQ_RS_21)

Coastal sand masses (beach ridges) (SEQ_RS_38)

Consolidated sedimentary aquifers

Sedimentary rocks with near-permanent flow (SEQ_RS_09)

Igneous rock aquifers

Fractured igneous rocks with near-permanent flow (SEQ_RS_16)
Fractured rocks (rocks with predominantly secondary porosity)

High rainfall permeable rocks (basalts) with near-permanent flow (SEQ_RS_01)

Metamorphic rock aquifers

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers