Name: GM_GAM_footprints

Display Field: gam_name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset includes two polygons for each of the TWDB Groundwater Availability Models (GAMs). The first polygon is the entire footprint of the GAM and the second polygon is the active extent/domain of the GAM.Each GAM has a unique model id number in the gam_id column that can be used to filter the dataset to only see the extent of that GAM. The attributes are described below. It is best to filter this dataset by the gam_id and gam_status columns.AttributeDescriptiongam_id Unique id number of the groundwater availability model versionextentFull = full model footprintActive = active model footprintgam_nameName of the groundwater availability modelgam_statuscurrent - Model is currently recognized as the official TWDB model for the specified aquifers.alternative - Model is currently being used for joint planning.obsolete - Model has been superseded by a newer model.

Service Item Id: 7d56deac7b934aebb1c991e6135288be

Copyright Text: Texas Water Development Board, Groundwater Modeling Section. 2026

Default Visibility: true

Max Result Window: N/A

Max Record Count: 2000

Standard Max Record Count No Geometry: 32000

Max Record Count Factor: 1

Standard MaxRecord Count: 4000

Tile Max Record Count: 4000

MaxSelectionCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

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: 3010816.7943563163
YMin: 1.7352679572826162E7
XMax: 7263779.755933069
YMax: 2.1954559074429326E7
Spatial Reference: 10481  (10481)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: extent
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Active
  Label: Active
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [115, 255, 223, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
• Value: Full
  Label: Full
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [216, 252, 179, 0]
  Outline:
  Style: esriSLSSolid
  Color: [255, 0, 0, 255]
  Width: 2
Transparency: 40
Labeling Info:

Feature Draw Order:

N/A

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports Result Pagination Token: false
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: false
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: true
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Cache Hint: false
Supports Query With Current User: true
Supports Query With Result Type: true

HasZ: false

HasM: false

Has Attachments: false

Has Last Edit Time: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: N/A

Fields:

• OBJECTID ( nullable: false, alias: OBJECTID, type: esriFieldTypeOID )
• Shape ( nullable: true, alias: Shape, type: esriFieldTypeGeometry )
• gam_id ( nullable: true, length: 255, alias: gam_id, type: esriFieldTypeString )
• extent ( nullable: true, length: 50, alias: extent, type: esriFieldTypeString )
• gam_name ( nullable: true, length: 255, alias: gam_name, type: esriFieldTypeString )
• gam_status ( nullable: true, length: 255, alias: gam_status, type: esriFieldTypeString )
• Shape.STLength() ( nullable: true, alias: Shape_Length, type: esriFieldTypeDouble )
• Shape.STArea() ( nullable: true, alias: Shape_Area, type: esriFieldTypeDouble )
• Webpage ( nullable: true, length: 255, alias: Webpage, type: esriFieldTypeString )
• yr_complete ( nullable: true, alias: yr_complete, type: esriFieldTypeInteger )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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