A proposal for a complete amendment to Directive 98/83/EC on the quality of water intended for human consumption was approved in February 2020. The new Directive came into force after all official procedures on 16 December 2020.
It is shown in the article, how the revision of the Czech methodical standard for abioseston analysis in water ČSN 75 7713 from December 2015 and the lowering of the limit value for abioseston in the Decree No. 252/2004 Coll. (drinking water quality) from 10 to 5% influenced results of routine laboratories.
Changes in chemistry and biology of the mesotrophic water reservoir after an extraordinary level decrease
Opatovice Water Reservoir is an important source of drinking water for the district town of Vyškov in South Moravia, northeast of Brno. After a partial decrease in the level in 2012 and after a significant reduction in 2017 there were marked changes in the chemistry and in the biology of the tank.
On 20. 12. 2016 was held seminar Protective zones of drinking water sources from surface sources in the House of technicians in Prague.
Czech Republic is among six countries in the EU, which shows in microbiological and chemical parameters of drinking water from 99 to 100 percent of the required quality.
The paper summarizes the „Methodology for comprehensive management of small water resources to ensure optimal quality of drinking water in normal and emergency situations“ that is a main result of the research project supported by the Technology Agency of the Czech Republic (TA 02020184).
The aim of this study is introduction and practice of chromogenic medium CCA that is prescribed in the amendment of EN ISO 9308-1 standard for detection of Escherichia coli and coliform bacteria in waters with low bacteria background flora.