Official European Water Statistics water losses water use

Official European Water Statistics water losses water use in private households Jürgen Förster, Eurostat E 3 Environment and Forestry Statistics

Eurostat – the general & legal setup n The Statistical Office of the European Union n A Directorate-General of the European Commission n „European Statistical Law“ (Regulation EC 223/2009 of the European Parliament and of the Council of 11 March 2009) – statistical governance and quality principles – European Statistical System (ESS): NSI + all national authorities developing, producing and disseminating official statistics n Individual statistical laws for various domains – e. g. Regulation 2150/2002 on European Waste Statistics n ESS cooperation / coordination – EFTA + EU Candidate countries – other International Organisations 08. 03. 2021 Water losses and water use in private households

Cooperation in environment statistics n Partners in Europe – DG Environment – European Environment Agency (EEA) – Joint Research Centre ”Group of 4“ n International coordination – OECD – United Nations (UNSD, UNEP, UNECE, FAO, …) 08. 03. 2021 Water losses and water use in private households

OECD – Eurostat Joint Questionnaire (JQ) 1/2 n First developed by the OECD in the early 1980‘s n Joined by Eurostat in the early 1990‘s n Voluntary exercise gentlemen‘s agreement n Several domains: waste, water, land use, wildlife, … n Biennial collection of yearly data for national territories n EU + CC + EFTA + neighbours (+ non- European OECD) n World Standard for official Water Statistics 08. 03. 2021 Water losses and water use in private households

OECD – Eurostat Joint Questionnaire (JQ) 2/2 n JQ-Inland Waters: – Water Resources (tab. 1) – Water Abstraction (tab. 2) – Water Use (tab. 3) – Wastewater Treatment (tab. 4 – 7) – Water Quality of Rivers and Lakes (tab. 8 & 9) 08. 03. 2021 European Water Statistics - 2 nd IWA Conference WESF

Water statistics in pre-defined tables: 08. 03. 2021 Water losses and water use in private households

08. 03. 2021 Water losses and water use in private households

JQ-IW Response rates by table 08. 03. 2021 Water losses and water use in private households

Tab. 3. 1: Water use by supply category and user 08. 03. 2021 European Water Statistics - 2 nd IWA Conference WESF

Water losses – definition (JQ-IW) n Volume of water lost during transport n through leakage or evaporation n between a point of abstraction and a point of use, n between a water supplier/distributor and a point of use n or between points of use and reuse. 08. 03. 2021 Water losses and water use in private households

Water flow scheme (JQ-IW) 08. 03. 2021 Water losses and water use in private households

Water losses par capita, m³ per year 08. 03. 2021 Water losses and water use in private households

Water losses par capita, m³ per year 08. 03. 2021 Water losses and water use in private households

Water use - definition (JQ-IW) In contrast to water supply (i. e. is delivery of water to final users including abstraction for own final use), water use refers to water that is actually used by end users for a specific purpose within a territory, such as for domestic use, irrigation or industrial processing. Excludes returned water (19). 08. 03. 2021 Water losses and water use in private households

Resident population - definition (JQ-IW) The average over a year of the number of persons belonging to the permanent population living in a territory. 08. 03. 2021 Water losses and water use in private households

Sectoral structure of JQ-IW reference to ISIC / NACE 08. 03. 2021 Water losses and water use in private households

Water use in private households (m³ per year) latest available year (2009 … 2000) 08. 03. 2021 Water losses and water use in private households

Water use in private households (m³ per year) 08. 03. 2021 Water losses and water use in private households

Water use in private households - share of self supply (%) 08. 03. 2021 Water losses and water use in private households

ESTAT Water statistics activities ahead n n n 08. 03. 2021 Regional aggregation (REQ 2012): NUTS and RBD Data link into WISE (water. europa. eu) International coordination and harmonization Alignment with water accounting (SEEA-water) Quality improvement / Enhanced EU country commitment Water losses and water use in private households

Thank you for listening! 08. 03. 2021 Water losses and water use in private households

Water Statistics Seminar for EECCA countries n n n 08. 03. 2021 11 -13 September 2012 Almaty, KZ 2 participants per country Co-operation with the European Environment Agency EU experience + regional experience Topics: resources, cross-boundary water management, abstractions & use, wastewater treatment Water losses and water use in private households

08. 03. 2021 Water losses and water use in private households

First results of pilot projects: Bulgaria 08. 03. 2021 Water losses and water use in private households

Challenges ahead for (European) Water Statistics Drivers: n EU Water Framework Directive, SDS, … n Climatic change floods and droughts Current statistics are incomplete and insufficient! Response needed: Reliable + adequate water statistics q Completeness filling of gaps, additional information q Coverage better resolution in time and space q Quality improve accuracy & timeliness 08. 03. 2021 Water losses and water use in private households