Name: IE_GSI_Bedrock_Aquifers_100K_IE26_ITM

Display Field: AQUIFERCAT

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Groundwater is the water that soaks into the ground from rain and can be stored beneath the ground. An aquifer is a body of rock and/or sediment that holds groundwater. There are two main types of aquifer in Ireland: bedrock aquifers and sand and gravel aquifers. Bedrock aquifers are found in cracked bedrock and in limestone bedrock which has been partly dissolved to create cavities.Bedrock is the solid rock at or below the land surface. Over much of Ireland, the bedrock is covered by materials such as sands and gravel. The sands and gravels occur naturally on top of the bedrock. They were laid down by meltwater from melting ice sheets, by rivers, or by wind. There are two main types of bedrock aquifer. In most of them, groundwater flows through fractures and fissures. In about half of the limestone rocks, groundwater flows through cavities and caves. This type of limestone is called karst. The bedrock aquifer map shows the potential of areas in Ireland to provide water supplies. There are three main groups based on their resource potential:Regionally important – the aquifers are capable of supporting large public water supplies sufficient to support a large town; Locally important – the aquifers are capable of supporting smaller public water supplies or group schemes; Poor – the aquifers are only capable of supporting small supplies, such as houses or farms, or small group schemes.The three main groups are broken down into seven bedrock aquifer categories in total. Please read the lineage for further details.Information used to assign bedrock aquifer categories include: rock type (Hydrostratigraphic Rock Unit Groups - simplified bedrock geology with similar hydrogeological properties), yield (existing wells and springs), permeability and structural characteristics. All of the information is interpreted by a hydrogeologist and areas are drawn on a map to show the aquifers.This Bedrock Aquifer map is to the scale 1:100,000 (1 cm on the map relates to a distance of 1km).It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).The aquifer data is shown as polygons. Each polygon holds information on the aquifer code, description, rock unit name, rock unit description, Hydrostratigraphic Rock Unit Group Name, Hydrostratigraphic Rock Unit Group Changes, Bedrock Geology 100k newcode, stratigraphy code (rock layers with age profile), lithology code (rock type), Original Aquifer Category and Comments.

Service Item Id: 17c7a34d88324b9492807e8ccca1b6dd

Copyright Text: Geological Survey Ireland

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 40000

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 417434.4496
YMin: 516407.6328
XMax: 734495.1353
YMax: 959857.7865
Spatial Reference: 2157  (2157)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: AQUIFERDES
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Regionally Important Aquifer - Karstified (conduit)
  Label: Rkc - Regionally Important Aquifer - Karstified (conduit)
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [0, 255, 255, 255]
  Outline:
  N/A
• Value: Regionally Important Aquifer - Karstified (diffuse)
  Label: Rkd - Regionally Important Aquifer - Karstified (diffuse)
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [56, 207, 171, 255]
  Outline:
  N/A
• Value: Regionally Important Aquifer - Karstified
  Label: Rk - Regionally Important Aquifer - Karstified
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [0, 166, 153, 255]
  Outline:
  N/A
• Value: Regionally Important Aquifer - Fissured bedrock
  Label: Rf - Regionally Important Aquifer - Fissured bedrock
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [41, 222, 84, 255]
  Outline:
  N/A
• Value: Regionally Important Aquifer - Fissured bedrock/Regionally Important Aquifer - Karstified
  Label: Rf/Rk - Regionally Important Aquifer - Fissured bedrock/Regionally Important Aquifer - Karstified
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [44, 154, 151, 255]
  Outline:
  N/A
• Value: Locally Important Aquifer - Bedrock which is Generally Moderately Productive
  Label: Lm - Locally Important Aquifer - Bedrock which is Generally Moderately Productive
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [204, 237, 150, 255]
  Outline:
  N/A
• Value: Locally Important Aquifer - Karstified
  Label: Lk - Locally Important Aquifer - Karstified
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [0, 230, 169, 255]
  Outline:
  N/A
• Value: Locally Important Aquifer - Bedrock which is Moderately Productive only in Local Zones
  Label: Ll - Locally Important Aquifer - Bedrock which is Moderately Productive only in Local Zones
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [209, 181, 110, 255]
  Outline:
  N/A
• Value: Poor Aquifer - Bedrock which is Generally Unproductive except for Local Zones
  Label: Pl - Poor Aquifer - Bedrock which is Generally Unproductive except for Local Zones
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [235, 204, 158, 255]
  Outline:
  N/A
• Value: Poor Aquifer - Bedrock which is Generally Unproductive
  Label: Pu - Poor Aquifer - Bedrock which is Generally Unproductive
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [255, 230, 153, 255]
  Outline:
  N/A
• Value: Lake
  Label: Lake
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [0, 0, 0, 0]
  Outline:
  Style: esriSLSSolid
  Color: [255, 0, 255, 255]
  Width: 1
• Value: Unclassified
  Label: Unclassified
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [225, 225, 225, 255]
  Outline:
  Style: esriSLSNull
  Color: [225, 225, 225, 255]
  Width: 0
Transparency: 33
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• AQUIFERCAT ( type: esriFieldTypeString, alias: AquiferCat, length: 6 )
• AQUIFERDES ( type: esriFieldTypeString, alias: Aquifer Description, length: 100 )
• AREA_KM2 ( type: esriFieldTypeDouble, alias: Area (km2) )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata