ABSTRACT: Preparing the national strategy of water management in Slovakia till 2015 due with requirements of Directive 2000/60/EC (Establishing a framework for EU Community action in the field of water policy – WFD) and Guidance No. 18 (Groundwater status and trend assessment) is fundamentally based, from the point of view groundwater, on the evaluation of quantitative and chemical status of groundwater bodies. Properly and accurate evaluation of groundwater bodies and their status set up the basic assumption for the most effective adjustment of programme of measures – tool for the reverse of poor quantitative or chemical status of groundwater bodies in the process of achieving good status for all groundwater bodies on the national level (fulfilment of WFD requirements). The paper presents methodologies and results of GWB quantitative and chemical status evaluation process in Slovakia in the period when river basin management plan is preparing and make available for comments to the public, including users (www.vuvh.sk/rsv). Member state shall allow publics to comment those documents in order to ensure active involvement and consultation of all users in this process (deadline is July 23th, 2009).