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Data
Dataset contains data selected from reporting of member and collaborating countries on chemical quality of groundwater, characteristics of groundwater bodies and sampling sites. Reported data have been assessed and processed by the ETC-Water and the EEA. Disaggregated records were annually aggregated by groundwater body, substance and year, and statistic value calculated. Results of quality assessment have been incorporated into the individual data tables.
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Groundwater Body Characteristics and Pressures (Waterbase_groundwater_v11_Bodies, 6939 records)
Physical characteristics and proxy pressures on groundwater bodies.
Field name | Definition | Note | data type |
---|---|---|---|
RecordID | Unique record identifier | long | |
RecordReported | Date when the record was reported by the data provider. | text(10) | |
CountryCode | Abbreviation of EEA Member or Collaborating Country | ISO 3166-1-alpha-2 code elements | text(2) |
Waterbase_GWBcode | Internally produced, unique, Waterbase compatible identifier of groundwater body. | [CountryCode] + "_GWB_" + [GWBcode_WFD] (or GWBcode_EIONET if GWBcode_WFD code has not been provided) | text(50) |
GWBcode_WFD | International, unique identifier of the groundwater body which was delineated according to the Water Framework Directive, Article 5 and under which it was reported to the European Commission. | text(50) | |
GWBcode_EIONET | International, unique identifier of the groundwater body which was delineated for the use within the EIONET. | text(50) | |
GWBname | Name of the groundwater body | text(255) | |
Reference_year | GW_bodies: Last year of revision or update of the groundwater body characteristics. | long | |
GWNo_of_Horizon | Vertical position of a groundwater horizon in which the groundwater body is situated. | long | |
NationalGWBcode | Nationally assigned identifier of the groundwater body. | text(50) | |
RBDcode | River Basin District Code | text(20) | |
RBDname | Name of the River Basin District. | text(150) | |
RBD_SubUnitCode | River Basin District Sub Unit code. | text(50) | |
Area | Area of the groundwater body in km2. | decimal | |
Depth_to_GW_Min | Minimum depth from the surface to the top of the groundwater body in m. | decimal | |
Depth_to_GW_Mean | Mean depth from the surface to the top of the groundwater body in m. | decimal | |
Depth_to_GW_Max | Maximum depth from the surface to the top of the groundwater body in m. | decimal | |
Thickness_Min | Minimum thickness of the groundwater body in m. | decimal | |
Thickness_Mean | Mean thickness of the groundwater body in m. | decimal | |
Thickness_Max | Maximum thickness of the groundwater body in m. | decimal | |
Max_Width | Maximum width of the groundwater body perpendicular to groundwater flow direction in km. | decimal | |
Max_Length | Maximum length of flow path within the groundwater body in km. | decimal | |
Petrographic_Description | Short petrographic description of the dominant components of the stratigraphy of the groundwater body. | memo | |
Stratigraphy | Description of the stratigraphy (geological period) of the groundwater body. | text (255) | |
Main_aquifer_type | Predominant aquifer type. | text(150) | |
Overlying_Strata | Description of the groundwater body's overlying strata. | text(255) | |
Confined | Value in the field tells whether the aquifer is confined or not. | A confined aquifer is a aquifer that is confined or overlain by a layer that does not transmit water in any appreciable amount or that is impermeable. An unconfined aquifer is a aquifer with water table open to the atmosphere through permeable overlying material. | text(3) |
Associated_Aquatic_Ecosystems | Information, whether the aquatic ecosystems are associated with the groundwater body. | text(3) | |
Associated_Aquatic_Ecosystems_Purpose | Description of the aquatic ecosystems associated with the groundwater body. | text(255) | |
Main_Infrastructures | Information, whether the main infrastructures affect the dynamics of the groundwater body. | text(3) | |
Main_Infrastructures_Purpose | Description of the main infrastructures affecting the dynamics of the groundwater body. | text(255) | |
Hydraulic_Conductivity_Min | Minimum hydraulic conductivity of the groundwater as a kf- value. | decimal | |
Hydraulic_Conductivity_Mean | Mean hydraulic conductivity of the groundwater as a kf- value. | decimal | |
Hydraulic_Conductivity_Max | Maximum hydraulic conductivity of the groundwater as a kf- value. | decimal | |
Annual_GW_Level_Amplitude_Min | Minimum of the range between the lowest and highest groundwater level within a year in m. | decimal | |
Annual_GW_Level_Amplitude_Mean | Mean of the range between the lowest and highest groundwater level within a year in m. | decimal | |
Annual_GW_Level_Amplitude_Max | Maximum of the range between the lowest and highest groundwater level within a year in m. | decimal | |
Annual_Precipitation_Min | Minimum long term annual precipitation over the groundwater body area in mm. | decimal | |
Annual_Precipitation_Mean | Mean long term annual precipitation over the groundwater body area in mm. | decimal | |
Annual_Precipitation_Max | Maximum long term annual precipitation over the groundwater body area in mm. | decimal | |
Water_Abstractions | Information, whether water is abstracted from the groundwater body. | text(3) | |
Water_Abstractions_Purpose | Purpose for which water is abstracted from the groundwater body. | text (255) | |
Artificial_Recharge | Information, whether the groundwater body is artifically recharged. | text(3) | |
Artificial_Recharge_Purpose | Purpose for the artificial recharge of the groundwater body. | text(255) | |
Main_Recharge_Source | Main source recharging the groundwater body, as defined in the codelist. | text (100) | |
QA_DDviolations | Quality assessment field - data definition errors | List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. | memo |
Physical Characteristics of Groundwater Monitoring Stations (Waterbase_groundwater_v11_Stations, 20247 records)
Physical characteristics of the WISE-SoE groundwater monitoring stations.
Field name | Definition | Note | data type |
---|---|---|---|
RecordID | Unique record identifier | long | |
RecordReported | Date when the record was reported by the data provider. | text(10) | |
CountryCode | Abbreviation of EEA Member or Collaborating Country | ISO 3166-1-alpha-2 code elements | text(2) |
Waterbase_StationID | Internally produced, unique Waterbase identifier of the groundwater monitoring station | CountryCode + '_GW_' + StationID | text(70) |
StationID | International identifier of the groundwater monitoring station. | text(70) | |
Waterbase_GWBcode | Internally produced, unique, Waterbase compatible identifier of groundwater body. | [CountryCode] + "_GWB_" + [GWBcode_WFD] (or GWBcode_EIONET if GWBcode_WFD code has not been provided) | text(50) |
GWBcode_WFD | International, unique identifier of the groundwater body which was delineated according to the Water Framework Directive, Article 5 and under which it was reported to the European Commission. | text(50) | |
GWBcode_EIONET | International, unique identifier of the groundwater body which was delineated for the use within the EIONET. | text(50) | |
NationalStationID | Identifier of the groundwater monitoring station, unique at the national level. | text(100) | |
NationalStationName | National name of the monitoring station | text(150) | |
WFD_EU_CD | Unique international identifier of the monitoring station under which the station was reported as WFD Art.8 monitoring station. | text(50) | |
WFDstation_country | Specification yes / no, whether the monitoring station was reported to European Commission as Water Framework Directive, Article 8 monitoring station. | text(3) | |
WFDstation_ETC | Information, whether the station was mapped by ETC Water as WFD Art.8 station | yes/no | text(3) |
Longitude | International geographical longitude (x) co-ordinate in decimal degrees format. | decimal | |
Latitude | International geographical latitude (x) co-ordinate in decimal degrees format. | decimal | |
Type_of_use | A code of type of use of groundwater. | DRW - drinking water, IND - industrial supply, OTH - other Use, SUR - surveillance | text(20) |
well_or_spring | Code informing whether the sampling site is well or spring. | S - spring, T - shaft, W - well | text(1) |
FirstUsage | Date, when the earliest disaggregated data record stored in the working database was sampled in this station. | date/time | |
LastUsage | Date, when the latest disaggregated data record stored in the working database was sampled in this station. | date/time | |
QA_station_issues | Quality assessment field - stations data quality issues flag | List of codes of station data issues detected in the record. Details are explained in the QA documentation. | text(100) |
QA_DDviolations | Quality assessment field - data definition errors | List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. | memo |
Chemical Quality of Groundwater (Waterbase_groundwater_v11_Quality, 424700 records)
Annualy aggregated data on selected chemical substances in groundwater bodies, including information on the number and type of sampling sites, the monitoring frequency, the number of sampling sites for each range of concentration values and statistics.
Field name | Definition | Note | data type |
---|---|---|---|
RecordID | Unique record identifier | long | |
RecordReported | Date when the record was reported by the data provider. | text(10) | |
CountryCode | Abbreviation of EEA Member or Collaborating Country | ISO 3166-1-alpha-2 code elements | text(2) |
Waterbase_GWBcode | Internally produced, unique, Waterbase compatible identifier of groundwater body. | [CountryCode] + "_GWB_" + [GWBcode_WFD] (or GWBcode_EIONET if GWBcode_WFD code has not been provided) | text(50) |
GWBcode_WFD | International, unique identifier of the groundwater body which was delineated according to the Water Framework Directive, Article 5 and under which it was reported to the European Commission. | text(50) | |
GWBcode_EIONET | International, unique identifier of the groundwater body which was delineated for the use within the EIONET. | text(50) | |
Year | Year of aggregation period in which samples were taken/Year in which sample was taken. | long | |
AggregationPeriod | Period of aggregation of measurement data. | text(20) | |
DeterminandName | Name of the determinand. | text(150) | |
DeterminandCode | Internal identification number of the determinand monitored | long | |
CASNumber | Chemical Abstract Service Number of the hazardous substance or other chemical determinand. | text(64) | |
Unit | Unit of Measurement | text(50) | |
NumberOfSites | Total number of sampling sites within aggregation period. | long | |
Drinking_Water_Sites | Number of sampling sites used for drinking water purposes. | long | |
Industrial_Sites | Number of sampling sites used for industrial purposes. | long | |
Surveillance_Sites | Number of sampling sites used for surveillance purposes. | long | |
Other_Sites | Number of sampling sites used for other purposes. | long | |
SamplingFrequency | Average frequency that the sampling sites were monitored during the aggregation period. | decimal | |
NumberOfSamples | Number of samples included in aggregated data. | long | |
NoOfSamplesBelowLODorLOQ | Number of samples below Limit of Detection or below Limit of Quantification included in aggregated data. | long | |
LimitOfDetection | Concentration for which there is a desirably small probability (around 5%) that the determinand will not be detected i.e. there is a 95% probability that the determinand will be detected. | decimal | |
LimitOfQuantification | The smallest concentration that can be distinguished from the analytical blank at a chosen level of statistical confidence (usually 95%). | decimal | |
Minimum | Minimum disaggregated sample concentration value of the input data used for aggregation. | decimal | |
Mean | Mean concentration value of aggregated data. | decimal | |
Maximum | Maximum disaggregated sample concentration value of the input data used for aggregation. | decimal | |
Median | Median concentration value of aggregated data. | decimal | |
Class_1 | The number of Class 1 sampling sites. | The Class 1 sampling sites are sites where average
concentration of disaggregated values within the aggregation period, for the respective determinands, are as follows: Ammonium <= 0.1 mg/l, Dissolved Oxygen <= 2 mg/l, Nitrate <= 10 mg/l, Nitrite <= 0.01 mg/l, Hazardous substances <= LOD or LOQ |
long |
Class_2 | The number of Class 2 sampling sites. | The Class 2 sampling sites are sites where average
concentration of disaggregated values within the aggregation period, for the respective determinands, are as follows: Ammonium between > 0.1 and <= 0.3 mg/l, Dissolved Oxygen between > 2 and <= 5 mg/l, Nitrate between > 10 and <= 25 mg/l, Nitrite between > 0.01 and <= 0.03 mg/l, Hazardous substances <= [Drinking water threshold] and at least one sample above LOD or LOQ in case of substances specified in the "Drinking water treshold" table (see codelists), NULL for other hazardous substances |
long |
Class_3 | The number of Class 3 sampling sites. | The Class 3 sampling sites are sites where average
concentration of disaggregated values within the aggregation period, for the respective determinands, are as follows: Ammonium between > 0.3 and <= 0.5 mg/l, Dissolved Oxygen > 5 mg/l, Nitrate between > 25 and <= 50 mg/l, Nitrite between > 0.03 and <= 0.06 mg/l, Hazardous substances > [Drinking water threshold] in case of substances specified in the "Drinking water treshold" table (see codelists), NULL for other hazardous substances |
long |
Class_4 | The number of Class 4 sampling sites. | The Class 4 sampling sites are sites where average
concentration of disaggregated values within the aggregation period, for the respective determinands, are as follows: Ammonium > 0.5 mg/l, Nitrate > 50 mg/l, Nitrite between > 0.06 and <= 0.1 mg/l, NULL for all other substances |
long |
Class_5 | The number of Class 5 sampling sites. | The Class 5 sampling sites are sites where average
concentration of disaggregated values within the aggregation period, for the respective determinands, are as follows: Nitrite > 0.1 mg/l, NULL for all other substances |
long |
AggregatedBy | Subject(s) that aggregated the data. | text(20) | |
QA_MVissues | long | ||
QA_LRviolations | Quality assessment field - list of logical rules violations. | List of codes of logical rules violated by record. Details are explained in the QA documentation. | text(100) |
QA_outlier | Quality assessment field - outlier flag. | Outlier code assigned to the record. Details are explained in the QA documentation. | long |
QA_DDviolations | Quality assessment field - data definition errors | List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. | memo |
Saltwater Intrusion (Waterbase_groundwater_v11_Saltwater_intrusion, 13 records)
Data on occurrences of saltwater intrusion caused by groundwater over-exploitation.
Field name | Definition | Note | data type |
---|---|---|---|
RecordID | Unique record identifier | long | |
RecordReported | Date when the record was reported by the data provider. | text(10) | |
CountryCode | Abbreviation of EEA Member or Collaborating Country | ISO 3166-1-alpha-2 code elements | text(2) |
Waterbase_SALTcode | Internally produced, unique, Waterbase compatible identifier of groundwater body. | [CountryCode] + "_SWI_" + [SALT code] | text(50) |
SALTcode | Unique identifier of the area indicating the occurrence of saltwater intrusion. | text(50) | |
Waterbase_GWBcode | Internally produced, unique, Waterbase compatible identifier of groundwater body. | [CountryCode] + "_GWB_" + [GWBcode_WFD] (or GWBcode_EIONET if GWBcode_WFD code has not been provided) | text(50) |
GWBcode_WFD | International, unique identifier of the groundwater body which was delineated according to the Water Framework Directive, Article 5 and under which it was reported to the European Commission. | text(50) | |
GWBcode_EIONET | International, unique identifier of the groundwater body which was delineated for the use within the EIONET. | text(50) | |
Reference_year | Last year of revision or update of the saltwater intrusion characteristics. | long | |
Longitude | International geographical longitude (x) co-ordinate in decimal degrees format. | decimal | |
Latitude | International geographical latitude (x) co-ordinate in decimal degrees format. | decimal | |
SALTname | Name of the area, spot or groundwater body which indicates the occurence of saltwater intrusion. | text(255) | |
SALTarea | Area affected by saltwater intrusion in km2. | decimal | |
Cause | The primary reason for the saltwater intrusion in the groundwater body. | text(255) | |
Since | Year when saltwater intrusion started. | long | |
QA_station_issues | Quality assessment field - stations data quality issues flag | GW-Saltwater_intrusion: List of codes of issues detected in the saltwater intrusion area spatial data. Details are explained in the QA documentation. | text(100) |
QA_DDviolations | Quality assessment field - data definition errors | List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. | memo |
Definition and field description of all data tables.
Lists and description of codes of selected fields present in the Waterbase-Groundwater data tables. Table "Drinking water threshold" is included.
Quality control documentation briefly presents ETC-ICM and EEA activities focused on quality of Waterbase-Groundwater dataset and results of these activities. In addition warning is given on the use of certain records for analytical purposes.
Waterbase contains timely, reliable and policy-relevant data collected from EEA member countries through the WISE-SoE data collection (formerly known as Eionet-Water and Eurowaternet) process. WISE-SoE data collection selects validated monitoring data from national databases and adds information on the physical characteristics of the water bodies being monitored and on the pressures potentially affecting water quality. The added value of Waterbase is that data collected through the WISE-SoE data collection process are from statistically stratified monitoring stations and groundwater bodies and are comparable at the European level. Waterbase data are primarily used in the production of the EEA's indicator-based factsheets.
For references, please go to https://www.eea.europa.eu/data-and-maps/data/waterbase-groundwater-7 or scan the QR code.
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