Guidebook for preparation of the Basic Hydrogeological Map of the Republic of Srpska 1:100 000

The Basic Hydrogeological Map (further: BHM) shows the hydrogeological properties of rock masses and outspread of fresh, thermal, thermo-mineral and mineral groundwater.
The BHM contains the review and order of certain types of aquifers and practically non porous parts of the terrain, hydrogeological phenomena and water facilities, and also the qualitative and quantitative characteristics of groundwater. The first step in preparation of the BHM is the preparation of the Guidebook.
Regardless of some good sides of the previous Guidebook (1984-1988) used in Bosnia and Herzegovina and the other members of the former SFRJ, this document was disputed by a part of professional public as complicated for use, very demanding in terms of time, finance and human resources.
Considering the current conditions in Bosnia and Herzegovina in terms of geological activities, organizations, executed terrain work (using the above-mentioned Guidebook) and the dynamic of the realization, the basis for the new necessary Guidebook, from which derives the working concept of the BHM, will be contained in the following:
• Principled content and the basic part of the Guidebook from 1984-1988 will be kept, because its essence meets the requirements of international standards and nomenclature;
• Rationalization and simplification of some map elements, which make practical terrain and office works easier and stimulate efficient completion of all activities connected to the BGM of Bosnia and Herzegovina;
• Standards, labels and concept of the BHM have to correspond to the principles of the European Water Framework Directive, in order to make the WFD implementation easier and to provide assumptions for further aquifer monitoring;
• Detailed and specific features of the terrain will be shown only for the parts of the terrain for which the data exist, based on the scale 1:25 000 – which is a base of the BHM, while these data will be absent from the final maps 1:100 000, because of the name, purpose and transparency needs;
• The review of some characteristics of hydrogeological areas should be closer to the real scope of all available data, as well as the data which will have been collected during the mapping to prevent improvisations and assumptions in the terrain features review for which there are no reliable data (e.g. assumptions about the level of groundwater in the deep aquifers);
• Partially free interpretation by the map author should be allowed in order to show the available data for some parts of the terrain in a way which may not be strictly prescribed by the Directive (whereby these elements will be complied with the reviewers and shown in an appropriate way in the map legend and booklet);
• Geological base obtained by making the same name sheets of the BHM of Yugoslavia 1:100 000 is binding and it could be supplemented and corrected only with the consent of the authors of the map or with the specialists for regional geology in the area of researches.
• There must exists an obligation to synchronize the work of different organizations and authors during the making of the adjacent sheets of the BHM, in order to create the common research methodology, as well as the interpretations and classification of certain aquifers. This would avoid mistakes of the previous BHM and inconsistencies of some sheets;
• Hydrogeological characteristics on the map should be shown in a way which emphasizes the main and the most important aquifers even in the conditions when they are not directly on the terrain surface (because of the water management and practical importance of a hydrogeological map);
• In the aim of rationalization it is planned to achieve the direct cooperation with water supply companies, mines, spas, hydrological services and other similar institutions to ensure more efficient groundwater monitoring and to make connection among future users of the BHM results;
• The experiences of the neighboring countries are used in the processes of the making the BHM and implementation of the Guidebook (this is important because of the common sheets adjustment);
• Making of the map is realized by Arc/GIS package, produced by ESRI Cal. USA. The Guidebook for making the Basic Hydrogeological Map will be complemented by the requirements of the complete project processing into the information system which contains a number of hydrogeological data about water occurrences and objects, speleological objects, aquifers, spring yield, levels of groundwater and physical, chemical and bacteriological characteristics of groundwater. All collected data will be entered into the groundwater component of the information system.

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