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Water Accounts in Israel Vienna January 2009. WATER AUTHORITY Dr. Or Goldfarb CENTRAL BUREAU of STATISTICS Zaur Ibragimov. Recent Activities. Construction of the Database Definition of the final reports Data collection and updates Developing a software interface for data update
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Water Accounts in IsraelVienna January 2009 WATER AUTHORITY Dr. Or Goldfarb CENTRAL BUREAU of STATISTICS Zaur Ibragimov
Recent Activities • Construction of the Database • Definition of the final reports • Data collection and updates • Developing a software interface for data update • Standardization of collected data
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
Methodology for the Database Construction Learning from: • Research and other countries’ experiences • Pilot of data collection • Cooperation with colleagues from IT Department (CBS)
Construction Of The Algorithms for the Final ReportsSupply 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
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
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
Construction Of The Algorithms for the Final Reports • SEEA physical use table • SEEA physical supply table
Construction Of The Algorithms for the Final ReportsAdditional 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
Data sources • Water Authority • abstraction and useof waterby 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
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
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
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 qualitytests • cross-checking of data from different sources
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
Status Survey Management Screen Establishments Classification Documents Contact person
Contact Information Screen Director Contact person
Correspondence History Screen Sent documents Status updating
Establishments’ questionnaires
Questionnaire Water abstractors General Wastewater treatment Effluents and pollutants Establishment activities Contact person
Questionnaire Error Message
Challenges along the road • Adjusting the questionnaire to establishments with various activities • Cooperation from private establishments and government agencies • Requests for additional reportsfrom system users • Methodology for calculation of new coefficients