Layer: Aquifer Bedrock (ID: 24)

Parent Layer: Land and Soil

Name: Aquifer Bedrock

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV>This is a polygon dataset containing nine Bedrock Aquifer classes.1) Regionally Important Aquifers:Regionally important aquifers are capable of supplying regionally important abstractions (e.g. large public water supplies), or excellent yields (>400 m3/d). Bedrock aquifer units generally have a continuous area of >25 km2 and groundwater predominantly flows through fractures, fissures, joints or conduits. Regionally important sand/gravel aquifers are >10 km2, and groundwater flows between the sand and gravel grains.This group is subdivided into the following types:Rk Regionally Important Karstified Bedrock Aquifer Rf Regionally Important Fissured Bedrock Aquifer Rg Regionally Important Sand/Gravel AquiferRegionally important karstified aquifers may be further subdivided based on the whether groundwater flows mainly through conduits (Rkc) or more diffusely through solutionally-enlarged fissures (Rkd).2) Locally Important Aquifers:Locally important aquifers are capable of supplying locally important abstractions (e.g. smaller public water supplies, group schemes), or good yields (100-400 m3/d). In the bedrock aquifers, groundwater predominantly flows through fractures, fissures, joints or conduits. Locally important sand/gravel aquifers are typically >1 km2, and groundwater flows between the sand and gravel grains.This group is subdivided into the following types:Lm Locally Important Bedrock Aquifer, Generally Moderately Productive Ll Locally Important Bedrock Aquifer, Moderately Productive only in Local Zones Lk Locally Important Karstified Bedrock Aquifer Lg Locally Important Sand/Gravel Aquifer3) Poor Aquifers:These bedrock aquifers are capable of supplying small abstractions (e.g. domestic supplies, small group schemes), or moderate to low yields (<100 m3/d). Groundwater predominantly flows through a limited and poorly-connected network of fractures, fissures and joints.This group is subdivided into the following types:Pl Poor Bedrock Aquifer, Generally Unproductive except in Local Zones Pu Poor Bedrock Aquifer, Generally Unproductive</DIV></DIV></DIV>

Service Item Id: 0f691b33aefc4f82aae14c378b1c83a5

Copyright Text: Contains Irish Public Sector Data (Geological Survey) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence

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Value: Rkc
Label: Rkc - Regionally Important Aquifer - Karstified (conduit)
Description: N/A
Symbol:
Value: Rkd
Label: Rkd - Regionally Important Aquifer - Karstified (diffuse)
Description: N/A
Symbol:
Value: Rk
Label: RK - Regionally Important Aquifer - Karstified
Description: N/A
Symbol:
Value: Rf
Label: Rf - Regionally Important Aquifer - Fissured bedrock
Description: N/A
Symbol:
Value: Lm
Label: Lm - Locally Important Aquifer - Bedrock which is Generally Moderately Productive
Description: N/A
Symbol:
Value: Lk
Label: Lk - Locally Important Aquifer - Karstified
Description: N/A
Symbol:
Value: Ll
Label: LI - Locally Important Aquifer - Bedrock which is Moderately Productive only in Local Zones
Description: N/A
Symbol:
Value: Pl
Label: PI - Poor Aquifer - Bedrock which is Generally Unproductive except for Local Zones
Description: N/A
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Value: Pu
Label: Pu - Poor Aquifer - Bedrock which is Generally Unproductive
Description: N/A
Symbol:
Value: Lake
Label: Lake
Description: N/A
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ROCKUNIT ( type: esriFieldTypeString, alias: ROCKUNIT, length: 51 )

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