The BoreholeView service is a Web Map Service (WMS) that follows the specifications of the Open Geospatial Consortium (OGC) standard WMS 1.3 (https://www.ogc.org/standard/wms/), which also is ISO 19128 standard (https://www.iso.org/standard/32546.html). As such, it can be used as part of the EPOS data portal but also interfaced directly.

The base address for the Borehole services is:

The capabilities document (GetCapabilities) for the WMS service is available at:

The BoreholeView service consists of three layers. Only one layer is visible at any zoom level, transitioning from "Cluster Group" to "Stacked Point" to "Purpose" when zooming in.

In small map scale, the "Cluster group" layer provides an overview over where boreholes are available.

At medium map scale, the "Stacked point" layer informs about boreholes by providing their location or the number of boreholes in a cluster where individual location cannot be resolved.

At large map scale, the "Purpose" layer displays individual boreholes with a symbol representing the purpose for which the borehole was drilled.

Query parameters of a straight BoreholeView WMS request include the coordinate reference system (crs), the image format (format), the image width and height, and the geographic bounding box (bbox), as in the example below:

The BoreholeView service does not support filtering of the results (CQL-filters). However, the BoreholeDownload service provides such functionality.

The BoreholeDownload service is a Web Feature Service (WFS) that follows the specifications of the Open Geospatial Consortium (OGC) standard WFS 2.0.2 (https://www.ogc.org/standard/wfs/), which is related to ISO 19119 standard Geographic information - Services (https://www.iso.org/standard/59221.html). As such, it can be used as part of the EPOS data portal but also interfaced directly.

The base address for the Borehole services is:

The capabilities document (GetCapabilities) for the WFS service is available at:

The schema of the service is available at:

Query parameters of a straight BoreholeDownload WFS request include the output format (outputFormat) and the geographic bounding box (bbox), as in the example below. The maximum number of features is limited on the server side, to avoid returning millions of feature on not sufficiently restricted queries.

In addition, attributes can be filtered for content by adding specific parameters (CQL filters) to the query. See section Searching data.

identifier [CharacterString]:
Globally unique identifer. Pointer to the representation of the borehole in the eposb full borehole data service (a link to the documentation will be inserted here as soon as it becomes available).

purpose [BoreholePurposeCode]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The purpose for which the borehole was drilled. (e.g. mineral exploration, hydrocarbon exploration, hydrocarbon production, groundwater monitoring, geothermal).

status [BoreholeStatusCode]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The present status of the borehole (e.g. abandoned, completed, proposed, suspended).

drillingMethod [BoreholeDrillingMethodCode]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Indicates the drilling method, or methods, used for this borehole (e.g. RAB, auger, diamond core drilling, air core drilling, piston).

operator [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Organisation or agency responsible for commissioning of the borehole (as opposed to the agency which drilled the borehole).

driller [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The organisation responsible for drilling the borehole (as opposed to commissioning the borehole).

drillStartDate [Date]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The date of the start of drilling (formatted as a gml:timePosition - e.g. 2012-03-17).

drillEndDate [Date]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The date of the end of drilling (formatted as a gml:timePosition - e.g. 2012-03-28).

startPoint [BoreholeStartPointCode]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Indicates the position relative to the ground surface where the borehole commenced (e.g. open pit floor or wall, underground, natural land surface, sea floor).

inclinationType [BoreholeInclinationCode]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Indicates the type of inclination of the borehole (e.g. vertical, inclined up, inclined down, horizontal).

boreholeMaterialCustodian [CharacterString]: Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Organisation that is the custodian of the material recovered from the borehole.

boreholeLength_m [Number]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The length of a borehole, in metres, as determined by the data provider. Length may have different sources, e.g. driller’s measurement, logger’s measurement, survey measurement.

elevation_m [Number]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Compromise approach to supply elevation data, in metres, for the borehole (i.e. wellbore) start point. This is to allow for legacy data without elevation data, and for software that cannot process a 3D GM_Point. The SRS will be a one dimensional vertical SRS (EPSG code in the range 5600-5799).

elevation_srs [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
URI of a spatial reference system of the elevation value. Mandatory if elevation_m is populated.

positionalAccuracy [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
An estimate of the accuracy of the location of the borehole collar location.

source [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Text describing details and citations to source materials for the borehole and, if available, providing URLs to reference material and publications describing the borehole. This could be a short text synopsis of key information that would also be in the metadata record referenced by metadata_uri.

parentBorehole_uri [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
URI referring to the unique ID of a parent borehole (e.g. parent well of a sidetrack wellbore).

metadata_uri [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
URI referring to a metadata record describing the provenance of data.

genericSymbolizer [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Identifier for a symbol from standard (locally or community defined) symbolization scheme for portrayal.

shape [GM_Object]:
Geometry defining the extent of the borehole start point.

lastUpdated [Date]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The date of the last update of borehole data information (formatted as a gml:timePosition - e.g. 2012-03-17).

lastHarvested [Date]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The date of the last harvest of borehole data information (formatted as a gml:timePosition - e.g. 2012-03-17).

provider [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Provider identifier according to ICS-C.

cored [boolean]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False ) Indicates whether drill core was taken from the borehole. Can be anything from spot/sidewall core to fully cored.

persistentIdentifier [CharacterString]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
A resolvable persistent identifier for the borehole (e.g. IGSN of DataCite). Typically, it resolves to a landing page and is not to be confused with the globally unique identifiers used for the borehole services.

accessToPhysicalDrillCore [Boolean]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
Indicates whether physical access to the drill core is possible (at a core repository).

boreholeUse [BoreholeUseCode]:
Multiplicity: ( [0..1], Allow duplicates: 0, Is ordered: False )
The present use of the borehole.

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: rockGeoChemistry (Class) OM_Observation «FeatureType»
Cardinality: [0..1]

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: detailedDescription (Class) Borehole «featureType»
Cardinality: [0..1]

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: poreGasChemistry (Class) OM_Observation «FeatureType»
Cardinality: [0..1]

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: geoTechnicalInfo (Class) WellConstruction «FeatureType»
Cardinality: [0..1]

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: groundWaterLevel (Class) EnvironmentalMonitoringFacility «featureType»
Cardinality: [0..1]

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: groundWaterChemistry (Class) OM_Observation «FeatureType»
Cardinality: [0..1]

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: geophysicalLogs (Class) OM_Observation «FeatureType»
Cardinality: [0..1]

Association (direction: Source → Destination)
Source: BoreholeView «FeatureType»
Target: geologicalDescription (Class) GW_GeologyLog «FeatureType»
Cardinality: [0..1]