The document discusses water and wastewater management issues in Bulgaria. It notes that surface water makes up 70% of Bulgaria's water resources. The average annual water consumption is 10-12 billion m3, used for potable water, irrigation, industry, and energy. Bulgaria has over 72,000 km of water supply networks and 55 drinking water treatment plants. However, many water systems are old and lose up to 60% of water. Sewerage networks cover 46% of the population, but many are also outdated. The document outlines Bulgaria's national programs and strategies to address problems like building new wastewater treatment plants and upgrading old facilities to improve water and wastewater management.