View In:   ArcGIS Online Map Viewer

Name: Water Polution Potential

Display Field: MUNICNAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset represents the spatial distribution of potential groundwater pollution areas, derived through a weighted multi‑criteria analysis of land cover types and pollution‑related activities. The assessment incorporates mining, settlements, agricultural land uses, and perennial water features to evaluate cumulative pollution potential. The resulting raster and municipal‑level summaries provide insight into areas where groundwater resources may be at higher risk of contamination. Potential groundwater pollution areas were identified using a weighted land‑cover–based spatial analysis. Land Cover data from the Department of Forestry, Fisheries and the Environment was used to represent pollution‑related features such as mining, settlements, agriculture, and industrial areas. Each land cover type was assigned a pollution‑potential weight based on its expected contribution to groundwater contamination.The weighted classes were converted to raster layers and integrated in ArcGIS Pro using the Raster Calculator to produce a composite pollution‑potential surface. The resulting raster was summarised at municipal level using the Zonal Statistics as Table tool, allowing identification of municipalities with higher pollution hazard scores.

Service Item Id: fc1a763c0ab8492bb8766a7076d4f961

Copyright Text: Prepared by: Herman Booysen, Principal GIS Scientist / Associate Partner Organisation: SRK Consulting Additional data sources: Department of Forestry, Fisheries, and the Environment (DFFE) Land Cover Dataset

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:

XMin: 28.873479941000028
YMin: -31.082629940999936
XMax: 32.944984945000044
YMax: -26.804419936999977
Spatial Reference: 4148  (4148)

Drawing Info:

Renderer:
Class Breaks Renderer:
Field: WaterPolRisk_Class
Min. Value: 1.0
ClassBreakInfos:
• Class Maximum Value: 1
  Label: 1
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [76, 230, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
• Class Maximum Value: 2
  Label: 2
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [176, 235, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
• Class Maximum Value: 3
  Label: 3
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [242, 202, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
• Class Maximum Value: 4
  Label: 4
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [247, 103, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
• Class Maximum Value: 5
  Label: 5
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [255, 0, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
Transparency: 20
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: true
Supports Returning Geometry Centroid: true
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID_1, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID_1 )
• PROVINCE ( type: esriFieldTypeString, alias: PROVINCE, editable: true, nullable: true, length: 50, defaultValue: null, modelName: PROVINCE )
• CATEGORY ( type: esriFieldTypeString, alias: CATEGORY, editable: true, nullable: true, length: 5, defaultValue: null, modelName: CATEGORY )
• CAT2 ( type: esriFieldTypeString, alias: CAT2, editable: true, nullable: true, length: 254, defaultValue: null, modelName: CAT2 )
• CAT_B ( type: esriFieldTypeString, alias: CAT_B, editable: true, nullable: true, length: 150, defaultValue: null, modelName: CAT_B )
• MUNICNAME ( type: esriFieldTypeString, alias: MUNICNAME, editable: true, nullable: true, length: 100, defaultValue: null, modelName: MUNICNAME )
• NAMECODE ( type: esriFieldTypeString, alias: NAMECODE, editable: true, nullable: true, length: 254, defaultValue: null, modelName: NAMECODE )
• DISTRICT ( type: esriFieldTypeString, alias: DISTRICT, editable: true, nullable: true, length: 25, defaultValue: null, modelName: DISTRICT )
• DISTRICT_N ( type: esriFieldTypeString, alias: DISTRICT_N, editable: true, nullable: true, length: 100, defaultValue: null, modelName: DISTRICT_N )
• F2 ( type: esriFieldTypeString, alias: F2, editable: true, nullable: true, length: 100, defaultValue: null, modelName: F2 )
• WaterPolSum ( type: esriFieldTypeDouble, alias: WaterPolSum, editable: true, nullable: true, defaultValue: null, modelName: WaterPolSum )
• WaterPolRisk ( type: esriFieldTypeDouble, alias: WaterPolRisk, editable: true, nullable: true, defaultValue: null, modelName: WaterPolRisk )
• Ha ( type: esriFieldTypeDouble, alias: Ha, editable: true, nullable: true, defaultValue: null, modelName: Ha )
• WaterPolRisk_Class ( type: esriFieldTypeInteger, alias: WaterPolRisk_Class_CLASS, editable: true, nullable: true, defaultValue: null, modelName: WaterPolRisk_Class )
• WaterPolRisk_Class_RANGE ( type: esriFieldTypeString, alias: WaterPolRisk_Class_RANGE, editable: true, nullable: true, length: 19, defaultValue: null, modelName: WaterPolRisk_Class_RANGE )
• Shape__Area ( type: esriFieldTypeDouble, alias: Shape.STArea(), editable: false, nullable: true, defaultValue: null, modelName: Shape.STArea(), required: true )
• Shape__Length ( type: esriFieldTypeDouble, alias: Shape.STLength(), editable: false, nullable: true, defaultValue: null, modelName: Shape.STLength(), required: true )

Templates:

• Name: Water Polution Potential
  Description:
  Prototype:
  WaterPolRisk_Class_RANGE: null
  WaterPolRisk_Class: null
  PROVINCE: null
  CATEGORY: null
  CAT2: null
  CAT_B: null
  MUNICNAME: null
  NAMECODE: null
  DISTRICT: null
  DISTRICT_N: null
  F2: null
  WaterPolSum: null
  WaterPolRisk: null
  Ha: null
  
  Drawing Tool: esriFeatureEditToolPolygon

Capabilities: Query,Create,Update,Delete,Uploads,Editing

Sync Can Return Changes: false

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:   Field Groups   Contingent Values

Supported Operations:   Query   Query Analytic   Apply Edits   Add Features   Update Features   Delete Features   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata   Update Metadata