View In:   ArcGIS Online Map Viewer

Name: USGS NWIS - Periodic GW Depth Measurements

Display Field: gm_id

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: Layer displaying periodic groundwater level depth measurements taken from USGS National Water Information System (NWIS) wells in California. Data obtained February 23, 2026. Data updated semi-annually. Data obtained from following link: https://nwis.waterdata.usgs.gov/ca/nwis/gwlevels

Service Item Id: 3214216ea7b74126ac6b6e3f880272a2

Copyright Text: Data obtained from USGS, please reference the link in the descriptions for questions regarding the data. For questions about this layer, please contact GAMA@waterboards.ca.gov.

Default Visibility: false

MaxRecordCount: 2000

MaxSelectionCount: 0

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Extent:

XMin: -1.38316600971E7
YMin: 3834732.549900003
XMax: -1.27121081672E7
YMax: 5156282.858900003
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSMSCircle
Color: [223, 115, 255, 255]
Size: 5.0
Angle: 0.0
XOffset: 0
YOffset: 0
Outline:
[0, 0, 0, 255] Width: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Feature Draw Order:

N/A

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: false
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: true
Supports Query With LOD Spatial Reference: true
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 ( nullable: false, defaultValue: null, editable: false, length: 4, type: esriFieldTypeOID, modelName: objectid, alias: OBJECTID )
• gm_id ( modelName: gm_id, nullable: true, editable: true, defaultValue: null, length: 8000, alias: GM_ID, type: esriFieldTypeString )
• agency_cd ( modelName: agency_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: agency_cd, type: esriFieldTypeString )
• site_no ( modelName: site_no, nullable: true, editable: true, defaultValue: null, alias: site_no, type: esriFieldTypeDouble )
• site_tp_cd ( modelName: site_tp_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: site_tp_cd, type: esriFieldTypeString )
• lev_dt ( modelName: lev_dt, nullable: true, editable: true, defaultValue: null, precision: 1, length: 29, alias: lev_dt, type: esriFieldTypeDate )
• lev_tm ( modelName: lev_tm, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_tm, type: esriFieldTypeString )
• lev_tz_cd ( modelName: lev_tz_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_tz_cd, type: esriFieldTypeString )
• lev_va ( modelName: lev_va, nullable: true, editable: true, defaultValue: null, alias: lev_va, type: esriFieldTypeDouble )
• sl_lev_va ( modelName: sl_lev_va, nullable: true, editable: true, defaultValue: null, length: 8000, alias: sl_lev_va, type: esriFieldTypeString )
• sl_datum_cd ( modelName: sl_datum_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: sl_datum_cd, type: esriFieldTypeString )
• lev_status_cd ( modelName: lev_status_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_status_cd, type: esriFieldTypeString )
• lev_agency_cd ( modelName: lev_agency_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_agency_cd, type: esriFieldTypeString )
• lev_dt_acy_cd ( modelName: lev_dt_acy_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_dt_acy_cd, type: esriFieldTypeString )
• lev_acy_cd ( modelName: lev_acy_cd, nullable: true, editable: true, defaultValue: null, alias: lev_acy_cd, type: esriFieldTypeInteger )
• lev_src_cd ( modelName: lev_src_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_src_cd, type: esriFieldTypeString )
• lev_meth_cd ( modelName: lev_meth_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_meth_cd, type: esriFieldTypeString )
• lev_age_cd ( modelName: lev_age_cd, nullable: true, editable: true, defaultValue: null, length: 8000, alias: lev_age_cd, type: esriFieldTypeString )
• parameter_cd ( modelName: parameter_cd, nullable: true, editable: true, defaultValue: null, alias: parameter_cd, type: esriFieldTypeInteger )
• lat ( modelName: lat, nullable: true, editable: true, defaultValue: null, alias: Lat, type: esriFieldTypeDouble )
• long ( modelName: long, nullable: true, editable: true, defaultValue: null, alias: Long, type: esriFieldTypeDouble )
• gwdepth_bgs_neg ( modelName: gwdepth_bgs_neg, nullable: true, editable: true, defaultValue: null, alias: GWDepth_bgs_neg, type: esriFieldTypeDouble )

Templates:

• Name: USGS NWIS - Periodic GW Depth Measurements
  Description:
  Prototype:
  lev_dt: null
  agency_cd: null
  gm_id: null
  lev_tm: null
  site_tp_cd: null
  lev_acy_cd: null
  gwdepth_bgs_neg: null
  sl_lev_va: null
  long: null
  lev_status_cd: null
  lev_meth_cd: null
  site_no: null
  sl_datum_cd: null
  lev_tz_cd: null
  lev_age_cd: null
  lev_src_cd: null
  parameter_cd: null
  lev_dt_acy_cd: null
  lev_va: null
  lev_agency_cd: null
  lat: null
  
  Drawing Tool: esriFeatureEditToolPoint

Capabilities: Query

Sync Can Return Changes: true

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports ApplyEdits By Upload Id: true

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:

Supported Operations:   Query   Query Attachments   Query Analytic   Query Top Features   Query Bins   Append   Validate SQL   Generate Renderer   Return Updates   Metadata   Update Metadata