Interim results Friuli-Venezia Giulia Veneto. the Italian experience

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1 Meeting of the Working Group Statistics of the environment Sub-group Water Luxembourg, 1-2 February 2012 Sardegna* Sicilia* Calabria* Basilicata* Puglia* Campania* M olise* Abruzzo* Lazio M arche Umbria Toscana Emilia-Romagna Liguria Interim results Friuli-Venezia Giulia Veneto on Water Trento Statistics Pilot projects: Bolzano - Bozen Trentino-Alto Adige Lombardia Valle d'aosta/vallée d'aoste Piemonte the Italian experience Simona Ramberti (simona.ramberti@istat.it) Socio-demographic and Environmental Statistics Directorate State of Environment Division - Water resources and climate Unit Istat- Italian National Institute of Statistics

2 The Italian Pilot project Eurostat grants for 2010 Water Statistics (Grant Agreement n ) TITLE: Statistics on water resources, water use and wastewater treatment Development of data collections systems and statistical methods for indicators at the sub-national level Duration: 24 months - 01/ /2012 Staff: Istat Water resources and climate Unit Project Leader: Stefano Tersigni (stefano.tersigni@istat.it)

3 Description of theaction This project drives at calculating some of the indicators required in the OECD/Eurostat JQ Inland Water and Eurostat Regional Environment Questionnaire both at national and sub-national level in Italy. growing the statistical information in the field of "water statistics" in Italy, given the strong institutional and public require at national and regional detail. developing a network between data producers and stakeholders in order to facilitate the collection and processing phases of the variables. This point will be of primary importance to the development of more appropriate indicators and of outputs realistically useful to the end users. The sub-national level of spatial aggregation will be Regions (NUTS 2) and 8 River Basin Districts that have been set up under the European Framework Directive 2000/60/EC. The purpose of this activity is to provide data and indicators for all years with available data (since 2000) and to return, when possible, long-term averages.

4 Water statistics: international and national data enquiry EEA EUROSTAT UN National enquiry: MINISTRY OF ECONOMIC DEVELOPMENT MINISTRY OF ENVIRONMENT RIVER BASIN AUTHORITIES REGIONS OECD ISTAT

5 A specific preliminary issue to resolve: River basin districts: municipalities overlap. How to resolve it?? 1. Collect and read water data not only at administrative level (municipalities, provinces, regions, optimal management areas..) but also in a geographic one (RBD) 2. River basin districts: municipalities overlap. How to resolve it?? Methodology Municipalities belonging to more than one district To define RBD limits, we ve analysed data at enumeration area (census section) level through GIS tools.

6 Indicators that will be produced Yearly (since 1999 to 2010) and long term average ( ) Years 1999, 2005, 2008 First Year At national level Second Year At RBD level Freshwater resources In particular: Precipitation Actual evapotranspiration Internal Flow Actual external inflow Total actual outflow of which: into the sea of which: into neighbouring territories. Freshwater resources In particular: Precipitation Actual evapotranspiration Internal Flow Actual external inflow Total actual outflow of which: into the sea of which: into neighbouring territories. Annual freshwater abstraction by source for public water supply Water use by public water supply and user Population connected to wastewater treatment plants In particular: - Resident population - Urban wastewater treatment Annual freshwater abstraction by source Water use by supply category and user Treatment capacity of wastewater treatment plants, in terms of BOD5. In particular: - Urban wastewater treatment Generation and discharge of wastewater in terms of Volume and BOD5

7 Indicators that will be produced First Year At national level Second Year At RBD level Yearly (since 1999 to 2010) and long term average ( ) Freshwater resources In particular: Precipitation Actual evapotranspiration Internal Flow Actual external inflow Total actual outflow of which: into the sea of which: into neighbouring territories. Freshwater resources In particular: Precipitation Actual evapotranspiration Internal Flow Actual external inflow Total actual outflow of which: into the sea of which: into neighbouring territories. Years 1999, 2005, 2008 Annual freshwater abstraction by source for public water supply Water use by public water supply and user Population connected to wastewater treatment plants In particular: - Resident population - Urban wastewater treatment Annual freshwater abstraction by source Water use by supply category and user Treatment capacity of wastewater treatment plants, in terms of BOD5. In particular: - Urban wastewater treatment Generation and discharge of wastewater in terms of Volume and BOD5

8 The Istat project on climate statistics Final Goals From Meteorological data collection to Meteo-climatic and hydrological indicators project o o o To implement a geographical data-warehouse with meteorological, agrometeorological and hydrological daily values measured since 1951; To improve procedures for climate monitoring. To analyse climate change and water resources availability in Italia, through a GIS-based scheme, at various and detailed geographical and time scale. Temperature Precipitation Evapotranspiration Wind Flow Hydrometric level o To obtain various indicators required in Inland Waters and Regional Statistics questionnaires, Urban audit, European Urban Statistics (DG Regio - Eurostat). Actual consistency of Meteo-Hydro DB ~ 800 hydrometric gauging stations ~ 6000 termopluviometric gauging stations o To estimate a set of new indicators describing the interaction of climate with other statistical (e.g. social, economic, demographic, public health, tourism, ) variables.

9 Precipitation Actual Evapotranspiration Total actual outflow Methodology The pluviometric monitoring network (about 6000 stations) and the hydrometric one (about 800 stations). Homogenization of geographical coordinate systems (WGS84/UTM zone 33N). Data organization in a GIS. A quality control system for data and metadata errors. Results achieved in 2011 Calculation of monthly precipitation totals (WMO data completeness criterion). Monthly estimate for AET (in collaboration with CRA-CMA, National Agricultural Research Council) Application of a kriging with external drift. The outflow of river basins with outfall to the sea: measurements and estimations The exchange of water through international rivers Total volume of the actual outflow into the sea: measurements (for rivers) and estimation methods (for groundwater) with remote sensing and image interpretation, in particular satellite images taken in the infrared band.

10 An example: hydrometric monitoring on Tevere river

11 The Istat project on climate statistics Some problems High dispersion of meteorological information Lack of homogenization and standardization Low timeliness and coeherence over time Break in time series Various methods to acquire meteorological data Paper data collections Lack of an official institute that coordinates meteorological data collection at national level

12 Indicators that will be produced Yearly (since 1999 to 2010) and long term average ( ) Years 1999, 2005, 2008 First Year At national level Second Year At RBD level Freshwater resources In particular: Precipitation Actual evapotranspiration Internal Flow Actual external inflow Total actual outflow of which: into the sea of which: into neighbouring territories. Freshwater resources In particular: Precipitation Actual evapotranspiration Internal Flow Actual external inflow Total actual outflow of which: into the sea of which: into neighbouring territories. Annual freshwater abstraction by source for public water supply Water use by public water supply and user Population connected to wastewater treatment plants In particular: - Resident population - Urban wastewater treatment Annual freshwater abstraction by source Water use by supply category and user Treatment capacity of wastewater treatment plants, in terms of BOD5. In particular: - Urban wastewater treatment Generation and discharge of wastewater in terms of Volume and BOD5

13 Istat census survey on Urban Water: from Water Abstraction to Wastewater treatment services Since 1951 Istat has periodically collected information on water resources for domestic use through a specific census. The survey chronology (1951,1963,1975,1987,1993,1999,2005,2008) allowed to develop an informative basis whose progressive updating depends on new water country/eu directives and increasing information demand form institutional and private stakeholders. Respondents: Water management companies (in 2008: 3.351, of which municipalities) Urban wastewater treatment plants Public water supply networks Public water supply Public sewerage Water abstraction Next census is scheduled for 2013 (with reference to 2012) 2008

14 Istat census survey on Urban Water Public water supply services Water pipes Public water supply network Water input to a municipal distribution system Water supplied Water invoiced Water invoiced for urban use Water invoiced for agricultural and zootechnical use Water invoiced for industrial and other economic use Public supply network Abstraction Water abstraction and trasmission Water abstracted for drinkable use Geographical coordinates of sampling points Water abstracted and treated for drinkable use Water delivered to municipalities Water tradings between water management companies Water delivered for different uses (agriculture, industry, oilers, supply ship) Transmission input Public sewerage Equivalent population connected to wastewater treatment plants with secondary and tertiary treatment Public sewerage Wastewater treatment plant Urban wastewater treatment plants Urban wastewater treatment plants in operation Domestic population equivalent Total urban population equivalent Total population equivalent

15 Istat census survey on Urban Water Governative targets Istat has set the following two indicators as requested by the Ministry of Economic Development which provides incentives, based on the achievement of the target or on the enhancement of the performance, for national southern regions. 100,0 100,0 90,0 80,0 70,0 60,0 50,0 40,0 Bolzano Lombardia Trento Emilia R. Marche Toscana Italian National Institut of Statistics - Public Water Services Census 2008 % of water supplied from municipal water entering the networks (target 2013: 75%). 67,1 66,9 64,9 target 2013 = 75% 61,2 Liguria Veneto Piemonte Umbria Lemene (Ven-Fri) Basilicata Valle d'aosta Calabria Sicilia Lazio Campania Friuli VG Italian southern regions 56,4 56,1 54,1 53,4 Abruzzo Molise Sardegna Puglia 90,0 80,0 70,0 60,0 50,0 40,0 30,0 20,0 10,0 0,0 Bolzano Molise Italian National Institut of Statistics - Public Water Services Census ,0 Emilia R. Umbria Lazio Sardegna Trento Campania Basilicata Lombardia Puglia Piemonte Valle d'aosta 54,4 Toscana Veneto target 2013 = 70% % of population connected to wastewater plants with secondary or tertiary treatment from total population connected to all wastewater treatment plants (target 2013: 70%). 48,2 Italian southern regions Friuli VG Calabria Liguria Marche Abruzzo Lemene (Ven-Fri) Sicilia

16 About the last census 2008 Istat activities in 2011 What is done Validation of the variables not yet widespread: water invoiced water delivered for different uses (agriculture, industry, oilers, supply ship) water abstraction by source (spring, well, water course, natural lake, artificial basin, marine and brakish water). The real exchange of water between regions (NUTS2) has been defined for the first time. A new official dissemination, on Istat website, is scheduled for march What is in progress Sampling points of water abstraction: check and validation of the geographical coordinates with the purpose to obtain the volumes of abstracted water both to administrative and geographic level (for example, RBD).

17 Preparing the new census Istat activities in 2011 Collaboration with water management companies to refine the next questionnaire to reduce non-responses ( partial or total). to detect local issues Updating water management companies list scheduled for March 2012 But the volumes of water are measured or estimated??? Water Management companies will distinguish, in census survey 2012, the volumes of water measured from those estimated. Web questionnaire Arrangement of a new web questionnaire generated with an in-house software that will give the respondent a guided tour and a customized compilation.

18 And also. Istat activities in 2012 Manufacturing industry To design a methodology which combines : - water use coefficients, comparing different methods of estimation in order to define country-specific factors. - measured data, through the consultation of business registers, production statistics (according to PRODCOM classification) and the access to the water withdrawal authorizations (requested by national legislation) released by Italian River Basin Authorities and provincial administrations. A sample survey, regarding companies with more than 20 employees, is in progress in order to plan a specific census.

19 And also. Istat activities in 2012 Production and distribution of electricity in order to obtain volumes of cooling water used for the production of electricity, a specific census survey is going to be defined. Desalinated water A new specific questionnaire has been carried out to know volumes of desalinated water, otherwise not available. Chemical and pharmaceutical companies which use desalinated water have been asked to give the corresponding values. The deadline for the census survey data return is expected in spring 2012.

20 Overview of some results Italian framework Water losses in public water supply networks Years 1999, 2005, 2008 R EGION S - N UT S2 WA T ER LOSSES (%) WA T ER LOSSES (%) R EGION S - N UT S P iemonte 31,4 31,7 31,7 Abruzzo 45,1 44,6 43,6 Valle d'aosta/vallée d'aoste 41,0 34,3 33,0 M olise 45,8 45,1 43,9 Lombardia 22,5 22,3 21,1 Campania 38,3 40,2 38,8 Trentino-Alto Adige 25,7 24,2 21,6 Puglia 49,6 47,3 46,6 B olzano - Bozen 23,2 21,7 20,4 Basilicata 39,6 34,8 32,9 Trento 27,9 26,0 22,4 Calabria 34,5 34,5 33,1 Veneto 30,4 30,1 30,0 Sicilia 36,1 35,6 35,1 Friuli-Venezia Giulia 37,9 38,2 40,6 Sardegna 46,0 46,4 45,9 Liguria 26,4 25,9 28,0 Emilia-Romagna 24,3 26,3 24,0 Toscana 31,1 29,4 27,7 IT A LY 32,5 32,6 32,1 Umbria 32,1 33,8 32,2 M arche 26,0 26,0 25,3 Lazio 32,8 35,0 35,4 TOTAL WATER ENTERING NETWORKS : 8,1*10 6 Mmc TOTAL WATER SUPPLIED: 5,5*10 6 Mmc

21 Overview of some results Italian framework Total water abstraction (Mmc) REGIONS - NUTS2 To tal water abstraction To tal water abstractio n REGIONS - NUTS Piemo nte Abruzzo Valle d'ao sta/vallée d'ao ste M o lise Lombardia Campania Trentino-Alto Adige Puglia Bo lzano - Bo zen Basilicata Trento Calabria Veneto Sicilia Friuli-Venezia Giulia Sardegna Liguria Emilia-Romagna Toscana IT A LY Umbria M arche Lazio

22 Overview of some results Italian framework Water Abstraction Water abstracted for drinkable use and water treated for drinkable use, Year ,8% ,9% (migliaia di metri cubi) ,4% 12,7% 17,8% 18,0% 31,1% 53,7% 55,6% 49,1% 26,1% 10,8% 35,2% 15,9% 9,1% 80,5% 89,2% 20,6% 8,9% 45,2% Piemonte Valle d'aosta Lombardia Trentino-Alto Adige Veneto Friuli-Venezia Giulia Liguria Emilia-Romagna Toscana Umbria Marche Lazio Acqua prelevata Abruzzo* Molise* Campania* Acqua potabilizzata Puglia* Basilicata* Calabria* Sicilia* Sardegna*

23 Spatial distribution of groundwater abstraction From spring From well

24 Spatial distribution of groundwater abstraction total spring well 50 surface other data collections systems and statistical 0 methods for indicators at the sub-national level

25 Padano and Alpi Orientali Districts: municipalities with surface and groundwater abstractions by source Spring Well Water courses and natural lakes Artificial basins Fresh Groundwater abstraction Fresh surface water abstraction

26 Padano and Alpi Orientali Districts: water treated for drinkable use by source Spring Well Fresh surface water Artificial basins Fresh Groundwater abstraction

27 Appennino Centrale and Appennino Meridionale Districts: water abstraction by source Spring Well Fresh surface water Artificial basins Fresh Groundwater abstraction Fresh surface water abstraction

28 Appennino Centrale and Appennino Meridionale Districts: water treated for drinkable use by source Spring Well Fresh surface water Artificial basins Fresh Groundwater abstraction

29 Overview of some results International framework Water abstracted for drinkable use Mmc UK ES IT NL DE Source: Eurostat

30 Overview of some results International framework There s quite a difference!! Water abstracted for drinkable use per capita (mc) Mmc per capita DE ES IT NL UK Source: Eurostat

31 Overview of some results International framework WATER SUPPLIED PER CAPITA IN ITALY (2008): 92 mc Water supplied per capita The italian value is on average! m 3 pro-capite UK ES IT NL DE Source: Eurostat TOTAL WATER SUPPLIED IN ITALY : 5,5*10 6 Mmc

32 Remarks in brief The Italian experience is showing that stakeholders and data producers participation grows making reference to European data enquiry Eurostat Grant project as instrument of improving water statistics:

33 Remarks in brief Eurostat Grant project as instrument of improving water statistics: Some suggestions Boost specific meetings between water experts of various countries (and with Eurostat obvoiusly!!) on some particular issues, concerning the whole production process of the data: from acquisition to validation data, with the consequence to make easy the collection and compilation of water statistics on a comparable basis Provide a forum on-line where all water experts could discuss and compare methodologies share data source, data production processes, data quality, datacollection strategies and dissemination have a step by step follow-up during Eu questionnaire filling avail of an ongoing feedback between countries

34 Meeting of the Working Group Statistics of the environment Sub-group Water Luxembourg, 1-2 February 2012 Sardegna* Sicilia* Calabria* Basilicata* Puglia* Campania* M olise* Abruzzo* Lazio M arche Umbria Thank Toscana you for attention Emilia-Romagna Liguria Friuli-Venezia Giulia Veneto Trento Bolzano - Bozen Trentino-Alto Adige Lombardia Valle d'aosta/vallée d'aoste Piemonte Arrivederci! Simona Ramberti (simona.ramberti@istat.it) Stefano Tersigni (stefano.tersigni@istat.it) Socio-demographic and Environmental Statistics Directorate State of Environment Division - Water resources and climate Unit Istat- Italian National Institute of Statistics