19 . Countries ( Austria , Bulgaria , Czech Republic , Hungary , Republic of Moldova , Romania ) and organizations ( EAP Task Force , ECE ) have reported on 12 committed actions addressing human health issues related to water quality and quantity by : adopting and implementing targets in accordance with the ECE/World Health Organization Regional Office for Europe ( WHO-Europe ) Protocol on Water and Health ; investing in environmentally friendly sanitation and wastewater treatment ; appropriate operation and maintenance of water infrastructure ; and the delimitation of water protection zones .