Geological Borehole SurveysSondages géologiques

Sondages géologiquesGeological Borehole Surveys

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This API provides access to the geological borehole register of the Canton of Geneva, maintained by the Système d'information du territoire genevois (SITG). The cadastre compiles geological data supplied mainly by private geotechnical firms, recording the location of existing borehole surveys and providing information on major geological subdivisions. It allows users to identify where geological investigations have already been carried out and to retrieve general information on subsurface conditions, supporting geotechnical, planning, and construction-related studies within the canton.Le cadastre des sondages résulte de la gestion des données géologiques fournies en majeure partie par les bureaux géotechniques privés. L'objectif est de connaître la position des relevés géologiques existants et de fournir des renseignements sur les grandes subdivisions géologiques. Les indication…

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Data schema (8 fields)

Click a field to see example values.

Field	Type	Description
OBJECTID	int	Internal record identifier.Internal record identifier.
ID_SONDAGEId sondage	double	Unique identifier of the geological borehole.Unique identifier of the geological borehole.
ALTITUDE_TERRAINAltitude terrain	double	Ground surface elevation at the borehole location.Ground surface elevation at the borehole location.
PROFONDEUR_TVDProfondeur tvd	double	True vertical depth of the borehole.True vertical depth of the borehole.
ANNEE_REALISATIONAnnee realisation	dateTime	Date the borehole was carried out.Date the borehole was carried out.
COORD_XCoord x	double	X coordinate of the borehole location.X coordinate of the borehole location.
COORD_YCoord y	double	Y coordinate of the borehole location.Y coordinate of the borehole location.
SHAPE	geometry	Geometric representation of the borehole location.Geometric representation of the borehole location.

Schema captured from wfs 2 days ago.

Query the data

Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

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Sample data (3 records)

Record 1BUT: Sites contaminés · GmlID: GOL_SONDAGE.1

{
  "BUT": "Sites contaminés",
  "GmlID": "GOL_SONDAGE.1",
  "STATUT": "Réalisé",
  "COORD_X": 2499576.8,
  "COORD_Y": 1115024.37,
  "MESURES": "Non",
  "METHODE": "Non-foré (fouille/tranchée)",
  "LIEN_PDF": "https://ge.ch/sitg/geodata/SITG/SONDAGES_GEOLOGIQUES\\18027.pdf",
  "OBJECTID": 1,
  "ID_SONDAGE": 18027,
  "NOM_ORIGINE": "PM2",
  "ORIENTATION": "Vertical vers le bas",
  "LIEN_PDF_PRIVE": null,
  "PROFONDEUR_TVD": 4.3,
  "BUREAU_GEOLOGUE": "AECOM Suisse Sàrl",
  "CONFIDENTIALITE": "Public",
  "RESSOURCE_HYDRO": "Non",
  "ALTITUDE_TERRAIN": 388,
  "EQUIPEMENT_AUTRE": "Non",
  "EQUIPEMENT_PIEZO": "Non",
  "ANNEE_REALISATION": "04.12.2017",
  "AUTRE_OBSERVATION": "Non",
  "PROPRIETAIRE_DONNEE": "Entreprise privée",
  "UNITE_GEOLOGIQUE_ATTEINTE": "Alluvions récentes"
}

Record 2BUT: Géotechnique · GmlID: GOL_SONDAGE.2

{
  "BUT": "Géotechnique",
  "GmlID": "GOL_SONDAGE.2",
  "STATUT": "Réalisé",
  "COORD_X": 2499301.82,
  "COORD_Y": 1115451.01,
  "MESURES": "Non",
  "METHODE": "Carotté",
  "LIEN_PDF": "https://ge.ch/sitg/geodata/SITG/SONDAGES_GEOLOGIQUES\\18423.pdf",
  "OBJECTID": 2,
  "ID_SONDAGE": 18423,
  "NOM_ORIGINE": "Sondage N° 21",
  "ORIENTATION": "Vertical vers le bas",
  "LIEN_PDF_PRIVE": null,
  "PROFONDEUR_TVD": 2,
  "BUREAU_GEOLOGUE": "De Cerenville Geotechnique SA",
  "CONFIDENTIALITE": "Public",
  "RESSOURCE_HYDRO": "Non",
  "ALTITUDE_TERRAIN": 382.7,
  "EQUIPEMENT_AUTRE": "Non",
  "EQUIPEMENT_PIEZO": "Non",
  "ANNEE_REALISATION": "15.06.1960",
  "AUTRE_OBSERVATION": "Non",
  "PROPRIETAIRE_DONNEE": "Entreprise privée",
  "UNITE_GEOLOGIQUE_ATTEINTE": "Alluvions récentes"
}

Record 3BUT: Géotechnique · GmlID: GOL_SONDAGE.3

{
  "BUT": "Géotechnique",
  "GmlID": "GOL_SONDAGE.3",
  "STATUT": "Equipé",
  "COORD_X": 2493444.01,
  "COORD_Y": 1121206.04,
  "MESURES": "Non",
  "METHODE": "Carotté",
  "LIEN_PDF": "https://ge.ch/sitg/geodata/SITG/SONDAGES_GEOLOGIQUES\\18789.pdf",
  "OBJECTID": 3,
  "ID_SONDAGE": 18789,
  "NOM_ORIGINE": "8062.102",
  "ORIENTATION": "Vertical vers le bas",
  "LIEN_PDF_PRIVE": null,
  "PROFONDEUR_TVD": 10,
  "BUREAU_GEOLOGUE": "GADZ SA",
  "CONFIDENTIALITE": "Public",
  "RESSOURCE_HYDRO": "Oui",
  "ALTITUDE_TERRAIN": 433.3,
  "EQUIPEMENT_AUTRE": "Non",
  "EQUIPEMENT_PIEZO": "Oui",
  "ANNEE_REALISATION": "25.02.2019",
  "AUTRE_OBSERVATION": "Oui",
  "PROPRIETAIRE_DONNEE": "Entreprise privée",
  "UNITE_GEOLOGIQUE_ATTEINTE": "Moraine würmienne"
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL: https://vector.sitg.ge.ch/arcgis/services/GOL_SONDAGE/MapServer/WFSServer?service=WFS&request=GetCapabilities

Query examples

curl -s 'https://vector.sitg.ge.ch/arcgis/services/GOL_SONDAGE/MapServer/WFSServer?service=WFS&version=2.0.0&request=GetCapabilities' -H 'Accept: application/json'

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