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	<xs:import namespace="http://dd.eionet.europa.eu/namespace.jsp?ns_id=36" schemaLocation="http://dd.eionet.europa.eu/GetContainerSchema?id=TBL4559"/>
	<xs:element name="DisaggregatedQualityData">
		<xs:annotation>
			<xs:documentation xml:lang="en">
				<dd2:Keyword><![CDATA[Aquifer]]></dd2:Keyword>
				<dd2:Keyword><![CDATA[Groundwater]]></dd2:Keyword>
				<dd2:Keyword><![CDATA[Pollution]]></dd2:Keyword>
				<dd2:Keyword><![CDATA[Water]]></dd2:Keyword>
				<dd2:Keyword><![CDATA[Water quality]]></dd2:Keyword>
				<dd3:EEAissue><![CDATA[Eutrophication]]></dd3:EEAissue>
				<dd3:EEAissue><![CDATA[Water]]></dd3:EEAissue>
				<dd2:Name><![CDATA[Disaggregated Groundwater Data]]></dd2:Name>
				<dd2:Definition><![CDATA[Chemical quality data on the concentrations of Nitrate, Nitrite, Ammonium, Dissolved Oxygen and hazardous substances in groundwater are requested from EEA Member Countries on an annual basis.]]></dd2:Definition>
				<dd3:Methodology><![CDATA[Many EEA Member Countries have previously submitted data on Nitrate, Nitrite, Ammonium, Dissolved Oxygen and selected hazardous substances. Once aggregated by the ETC Water, the chemical quality data, up to the last year of requested data, are available to be viewed and dowloaded from the publicly accessible Waterbase, hosted by the EEA Data Service at:
http://dataservice.eea.europa.eu/dataservice/metadetails.asp?id=832.

This year, comparable and harmonised data are requested on the concentrations and distribution of Nitrate, Nitrite, Ammonium, Dissolved Oxygen and hazardous substances in groundwater bodies. With regard to the hazardous substances, the focus is on those hazardous substances included as Water Framework Directive Priority Substances, those noted in Lists I and II of the Dangerous Substances Directive, as well as HELCOM and OSPAR Priority Substances, and any other nationally monitored hazardous substances. The determinands are detailed in the codelist attached to the Param_IDn field. This list is not exhaustive. Countries are asked to provide the name and CAS Number of any additional determinands included in their data submissions.

Data on Nitrate, Nitrite, Ammonium, Dissolved Oxygen and hazardous substances are requested in disaggregated format. Sample concentrations below the limit of detection should be indicated as [Value] and values below the limit of quantification should be indicated as <Value.

Data on Nitrate, Nitrite, Ammonium and Dissolved Oxygen are primarily requested as disaggregated data but can be provided as annually aggregated values in the format described in the AggregatedData_NO3, AggregatedData_NO2, AggregatedData_NH4 and AggregatedData_O2 tables, if preferred.

The following fields combine to create a unique record in this table: StationID, Date, Param-IDn and Value. No duplicate records should exist within this combination.

Specific information on the interface structure for the submission of disaggregated groundwater data can be found in the document ' Interface Description_DisaggData_Groundwater.pdf' under http://dd.eionet.europa.eu/DocDownload?file=ce072d4cf142e27a916cfc46bdbca420.

We would like to encourage all countries to provide data on Nitrate, Nitrite, Ammonium, Dissolved Oxygen and hazardous substances, for as many groundwater bodies, for as many determinands, and for as long a time series as possible.]]></dd3:Methodology>
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		</xs:annotation>
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			<xs:sequence>
				<xs:element name="Row" minOccurs="1" maxOccurs="unbounded">
					<xs:complexType>
						<xs:sequence>
							<xs:element ref="dd36:GWStation_ID" minOccurs="0" maxOccurs="1"/>
							<xs:element ref="dd36:Param_IDn" minOccurs="0" maxOccurs="1"/>
							<xs:element ref="dd36:Value" minOccurs="0" maxOccurs="1"/>
							<xs:element ref="dd36:Date" minOccurs="0" maxOccurs="1"/>
						</xs:sequence>
						<xs:attribute name="status" type="xs:string" use="optional"/>
					</xs:complexType>
				</xs:element>
			</xs:sequence>
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