In the run-up to the European Union accedence is the government of Bulgaria faced with the challenging task of implementing the EU legislation provisions and requirements into Bulgarian law.  

The European Council DC 98/83/EC is covering the water quality for human consumption in EU and was, as regulation No.9, converted into Bulgarian national law in 2001. For the complete takeover of the common environmental EU acquis, is the assignment into national laws not sufficient alone. Simultaneously administration structures must be created, which open new possibilities for the actually implementation of the acquis, and allows for execution of the environmental law assets. The realisation of the CD 98/83/EC or regulation No.9 in Bulgaria represents a great challenge for the future, in particular regarding the demanded chemical and micro-biological drinking water quality.


In Bulgaria, the population is supplied with drinking water from ground- and surface water. All of the waters going into the public grid has to be disinfected due to drinking water hygienic problems and according to regulation No.9. The disinfections are in general carried out by means of chlorine gas. If a transgression of bacteriological parameters is stated, the chlorine dose is often increased. Biological, physical and/or physical-chemical cleaning process steps are seldom existing. Based on those general frameworks, transgression of the chemical parameter limit values are not to be excluded. The quality problems of row water affect not only surface water, but also ground water and bank filtrates, which partly contains large concentrations of nitrate, manganese and heavy metals. Additionally, there is a possibility that, until now unknown organic environmental chemicals, such as pesticides and PAH's which derive from agricultural usage or from industrial contaminated sites relatively unhindered acquires in the drinking water reservoir. The inconsistent development of the chemical analytics, when it comes to the supervision of the drinking water quality, supports this process and may result in hygienic disadvantages for the consumer.