Contamination and Protection of Surface Water Source in Czech Republic

Abstract

There have been numerous changes regarding legislative framework for water during the last years. This article deals with the problem of Kruzberk water reservoir, situated in Odra river basin (that empties into the Baltic Sea) in the northeast of the Czech Republic. The objective of this work was to evaluate the evolution tendency of reservoir water quality, determine the problematic parameters and to carry out balance evaluation of selected parameters from among the reservoir profiles in vegetation periods of the years 2006–2008. The most important profile is the profile number 1 (start of backwater) and number 5 (dam). The risk analysis based on hydrogeological exploration and area survey was carried out to protect the water quality and quantity. An optimization study and revision of protection zones were also carried out according to the valid legislation. When evaluating the concentrations, the following problematic parameters were verified: DQO – permanganate, pH, iron, manganese, calcium and magnesium, thermotolerant bacteria and Enterococcus. The regulation of activities in level 2 protection zone should positively influence water quality of the water reservoir in the future.