The optimization of hydraulic protection of groundwater

A general algorithm of hydraulic protection of groundwater (HPGW) control based on the checking of the maximal closed groundwater contour is proposed. A model describing only flow of groundwater (not spreading of contaminants) is used and therefore short computational time is sufficient to simulate various operational regimes of HPGW. Groundwater flow is described by a twodimensional two-parameters model with 'real time' generation of boundary conditions. Operation of HPGW is determined on the prediction of HPGW behaviour for 2-3 weeks forward. Results obtained using the developed algorithm are illustrated on a real HPGW operating at the 'Žitný Ostrov' in Slovakia. The usage of the proposed algorithm has made it possible to shorten total groundwater pumping to two thirds of the original value.