1 WATER AUTHORITY Dr. Or Goldfarb CENTRAL BUREAU of STATISTICS Zaur Ibragimov Water Accounts in Israel Vienna January 2009

2 Recent Activities 1.Construction of the Database 2.Definition of the final reports 3.Data collection and updates 4.Developing a software interface for data update 5.Standardization of collected data

3 Principles of the Database Construction High resolution for variables, used for background calculation Definition of algorithms for variables calculation by industries, suppliers and user sectors

4 Methodology for the Database Construction Learning from: Research and other countries experiences Pilot of data collection Cooperation with colleagues from IT Department (CBS)

5 Construction Of The Algorithms for the Final Reports Supply and Use of Water in the Economy Table 1: Supply of distributed water and of wastewater services Table 2: Use of distributed water and of wastewater services Table 3: Economic accounts for water distribution and wastewater collection industries Table 5: Physical flows of water corresponding to economic supply Table 6: Physical flows of water corresponding to economic uses

6 Construction Of The Algorithms for the Final Reports Physical flows of water between the economy and the environment Table 7: Abstractions of water Table 8: Returns of water Table 9: Freshwater balance

7 Construction Of The Algorithms for the Final Reports Physical flows of pollutants between the economy and the environment Table 10: Pollutant loads of freshwater abstracted for self and public supply Table 11: Pollutant loads of wastewater discharged to the sewage system Table 12: Pollutant loads of cooling and wastewater returned to the environment Table 13: Pollutant loads of cooling and wastewater returned to non-fresh sources

8 Construction Of The Algorithms for the Final Reports –SEEA physical use table –SEEA physical supply table

9 Construction Of The Algorithms for the Final Reports Additional reports according to special users requests Use of water by suppliers and user sectors Abstraction costs Water prices Data related to water consumption in municipalities Allocation and use of water in agriculture

10 Data sources –Water Authority abstraction and use of water by source, types and user sector taxes paid by water abstractors –CBS Municipalities data regarding economic variables Production data by industry Various Coefficients for calculated variables Survey in the water and water related industries –Other government bureaus

11 Data compilation: Related Activities Pre-test survey Update of the questionnaire according to the pre-test survey Survey in the water and water related industries

12 Survey in the water and water related industries Sampling stratums : –water abstractors –reclamation plants –agricultural cooperatives –wastewater treatment plants –water and sewage corporations The CBS Business Register was used as a framework for sampling

13 Technological system Developed software tools for updating the data –input forms for questionnaires –input forms for administrative files Monitoring system for the incoming data –data quality tests –cross-checking of data from different sources

14 Technological system (continued) Survey control tool –monitoring establishments reporting status –connecting documents delivery directly to the fax –updating of the data from different screens and with other systems in CBS

15 Technological System Screenshots

16 Establishments Status Documents Classification Contact person Survey Management Screen

17 Contact person Director Contact Information Screen

18 Correspondence history

19 Correspondence History Screen Sent documents Status updating

20 Establishments questionnaires

21 Contact person Establishment activities General Water abstractors Wastewater treatment Effluents and pollutants Questionnaire

22 Error Message Questionnaire

23 Challenges along the road Adjusting the questionnaire to establishments with various activities Cooperation from private establishments and government agencies Requests for additional reports from system users Methodology for calculation of new coefficients

24 Thank you!