Name: GroundwaterQualityZoneReferenceData

Display Field: AquiferName

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer represents the aquifers and alluvial ribbons identified in Otago. The majority of the aquifer boundaries were drawn or updated in 2023 for the proposed Land and Water Regional Plan (pLWRP). The boundaries are drawn using either the regional 10m DEM, or LiDAR if available. Overlain was the GNS QMap geological layer and Topo50 - 20m contour lines. QMap is only accurate to +/-100m and therefore review of topography including DEM, and Google Earth helped determine where to exclude basement rocks from inside the aquifer boundary. Aquifer boundaries are only indicative and have been assumed to be held within the lower topography basin sediments.Additionally, it was assumed that the aquifer boundaries do not steeply traverse up and down topography. Bore logs were consulted to help confirm groundwater presence, including a review of the geological log if available. The division between aquifers in the Hawea Basin and Wanaka Basin were based on groundwater modelling results.

Copyright Text: Otago Regional Council

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 18721446.0421622
YMin: -5845534.38435207
XMax: 19053221.8719482
YMax: -5531515.9490357
Spatial Reference: 102100 (3857)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• SOEPurpose (type: esriFieldTypeString, alias: SOE Purpose, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• AquiferUnitID (type: esriFieldTypeInteger, alias: Aquifer Unit ID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• AquiferZone (type: esriFieldTypeString, alias: Aquifer Zone, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• AquiferName (type: esriFieldTypeString, alias: Aquifer Name, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• AquiferType (type: esriFieldTypeString, alias: AquiferType, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• GWQualityZone (type: esriFieldTypeString, alias: GW Quality Zone, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• ParentZone (type: esriFieldTypeString, alias: Parent Zone, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• Identifier (type: esriFieldTypeString, alias: Identifier, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• Type (type: esriFieldTypeString, alias: Type, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: GroundwaterQualityZoneReferenceData
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 4/13/2026 3:40:30 AM

Schema Last Edit Date: 4/13/2026 3:40:30 AM

Data Last Edit Date: 4/13/2026 3:40:30 AM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat