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Identifier DWD_WSZ
Short name DWD_WSZ (11_WaterSupplyZone)
Dataset WISE_DWD
Reference URL
Name 11_WaterSupplyZone
Short Description General information on Water Supply Zones drinking water supply arrangements
(With the exception of question 1.2 only information on individual supplies of water exceeding 1000 m3 a day as an average or serving more than 5000 persons should be reported)
See "Guidance document on reporting under the Drinking Water Directive 98/83/EC" Table 1.4.
Definition General information on individual water supply zones witch exceed 1000 m3 a day as average or serving more than 5000 persons
Methodology for obtaining data The data requested for DWD should be derived from existing Water Supply Zones within each Member State. One table should be used for all Water Supply Zones. The combination of the elements CountryCode and WaterSupplyZone ID must create a unique record in the table. No duplicate records should exist with this table.

This data should be reported to the European Commision every three years.


Element name Datatype Element type
* Country Code (CountryCode) C string Fixed values
* Water Supply Zone ID (WSZ_ID) C  (PK) string Quantitative
* WSZ_Name (DWD_WSZ_Name) string Quantitative
WSZ_NUTScoordinates (WSZ_NUTScoordinates) string Quantitative
* Residents (WSZ_Residents) integer Quantitative
* Volume (WSZ_Volume) integer Quantitative
* Year (DWD_Year) C  (PK) integer Quantitative
(an asterisk in front of element name indicates that the element is mandatory in this table)
(the C sign marks a common element)