1. 7.2.2001 10.4.2002 1 Waterbase first experiences based on Working Database Groundwater (WDB-GW) Johannes Grath, Andreas Scheidleder /AWW EIONET Workshop, April 2002 ETC/WTR under contract to the EEA

2. 10.4.2002 2 Waterbase n first experiences based on Working Database Groundwater (WDB-GW) l contents of WDB-GW 9 GW-body description 9 number and type of sampling sites within GW-body 9 quality data (aggregated and disaggregated data) l features (presented interactiv by WDB-GW) 9 online access for NRCs (update and validation) 9 defined interface for data exchange 9 logfiles (with comments e.g. data provider, date) 9 query tools

3. 10.4.2002 3 Waterbase Demonstration of Working Database on Groundwater

4. 10.4.2002 4 Waterbase n Outlook for Reference Waterbase l Ref. Waterbase = subset of Working databases l definition of target user groups l definition of contents 9 degree of data aggregation 9 adaptation of queries l inclusion of rivers and lakes l agreement with NRCs with regard to data presented to the general public