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1 Chapter IV Data items International Recommendations for Water Statistics (IRWS) – Chapter IV Data items Expert Group Meeting on the IRWS United Nations.

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Presentation on theme: "1 Chapter IV Data items International Recommendations for Water Statistics (IRWS) – Chapter IV Data items Expert Group Meeting on the IRWS United Nations."— Presentation transcript:

1 1 Chapter IV Data items International Recommendations for Water Statistics (IRWS) – Chapter IV Data items Expert Group Meeting on the IRWS United Nations New York, 4-6 November 2008

2 Location in IRWS PART I Chapter 1: Introduction. Chapter 2: Main concepts and the SEEAW Chapter 3: Economic units Chapter 4: Data items PART II Chapter 5: Data collection strategy Chapter 6: Data sources compilation methods Metadata and data quality Chapter 7: Metadata and data quality Chapter 8: Dissemination Chapter 9: Chapter 9: Indicators ANNEXES Annex 1: Supplementary data items Annex 2: Link between data items and the SEEAW Annex 3: Link between data items and indicators of WWDR and MDG Annex 4: Link between data items and indicators of FAO GLOSSARY

3 Outline of Chapter Section A – IntroductionSection A – Introduction Section B – Collection and compilation of data itemsSection B – Collection and compilation of data items Section C – Physical water data itemsSection C – Physical water data items Section D – Monetary water data itemsSection D – Monetary water data items Section E – Social-Demographic data itemsSection E – Social-Demographic data items

4 Question 1 – Should each data item make reference to the need for spatial and industry disaggregation? It was not clear to some that the data items where, for example, meant to include a disaggregation by industries.It was not clear to some that the data items where, for example, meant to include a disaggregation by industries. However, others noted that it was good to have this detail separated from the data items.However, others noted that it was good to have this detail separated from the data items. Also note the proposal to identify and use standard boundaries for the worlds river basins (if done should probably be include in Chapter II)Also note the proposal to identify and use standard boundaries for the worlds river basins (if done should probably be include in Chapter II)

5 Question 2 – Should more on the units of measurement be included (e.g. m 3 ) Internationally there is some confusion, e.g. between Gm 3 and km 3 )Internationally there is some confusion, e.g. between Gm 3 and km 3 ) It is suggested to have a page near the glossary (or elsewhere) showing the conversion of measurement units (e.g. m 3 to km 3, m 3 to acre-feet, etc.)It is suggested to have a page near the glossary (or elsewhere) showing the conversion of measurement units (e.g. m 3 to km 3, m 3 to acre-feet, etc.)

6 Section C – Physical water data items A. Inland water resources B. Inflow of water to a territory's inland water resources C. Outflow of water from a territory's inland water resources D. Natural transfers with other resources in the territory E. Abstraction of water F. Supply of water (CPC 1800) to other economic units G. Water received (CPC 1800) from other economic units H. Discharge of wastewater to other economic units I. Wastewater received from other economic units J. Water and wastewater imported from rest of world K. Water and wastewater exported L. Discharges of water to the environment by economic units M. Losses of water and wastewater N. Waterborne emissions to other economic units O. Waterborne emissions to the environment

7 Question 3 – Can the list of data items be shortened or can the items be prioritised? At present the list is long and many countries do not have data for all data itemsAt present the list is long and many countries do not have data for all data items If the data items are prioritised, how could this be done?If the data items are prioritised, how could this be done?

8 Question 4 – Is the definition of renewable and non-renewable groundwater (Data items A.2.1 and A.2.2 and E.1.2.1 and E.1.2.2) appropriate? This definition is based on the receipt of natural recharge. If any natural recharge is received then it is renewable. Artificial recharge and saltwater intrusion are excluded from the definition of natural recharge.This definition is based on the receipt of natural recharge. If any natural recharge is received then it is renewable. Artificial recharge and saltwater intrusion are excluded from the definition of natural recharge. Because recharge rates are highly variable in some areas, a time limit within which natural recharge is received is used. At present this is a human life span.Because recharge rates are highly variable in some areas, a time limit within which natural recharge is received is used. At present this is a human life span. What are the definitions used by countries and international organisations?What are the definitions used by countries and international organisations? Should aquifers be classified according to “sustainable rates of extraction” as over exploited. That is rates of extraction are greater than rates of rechargeShould aquifers be classified according to “sustainable rates of extraction” as over exploited. That is rates of extraction are greater than rates of recharge

9 Question 5 – Should wetlands be added to the list of water resources under Data item A? Should wetlands be included as a water resource? This is a fundamental question that needs to be addressed in Chapters II, III and IV They are in the SEEA asset classification but under heading major water bodies (EA 24), as EA 243, and not under the heading water resources (EA131).

10 Question 6 – Is the level of detail in Data item E (Abstraction) necessary? A reviewer has indicated that this is not needed and that disaggregation by industry is more important.

11 Question 7 – Can the definition of wastewater be clarified? At present wastewater is defined as: The wastewater delivered to other institutional units (H.) is volume of water sent from an institutional unit to another institutional unit as the water which has no further immediate use or value because of its quality, quantity or time of occurrence. This excludes water discharged directly to the environment by institutional units, which is included in data item L. Wastewater may be delivered via sewers, open drains, trucks or other means.

12 Question 8 – Should the supply of treated or untreated wastewater (or re-use water in SEEAW) be shown in an elaboration of data items G and F? Currently this disaggregation is explained in the text (paragraph 4.58) for the supply side but not in the use side.Currently this disaggregation is explained in the text (paragraph 4.58) for the supply side but not in the use side. The text in paragraphs 4.62 to 4.64 could be expanded to include thisThe text in paragraphs 4.62 to 4.64 could be expanded to include this

13 Question 9 – Which presentation of data items for flows within the domestic economy is preferred? At present two classifications of the flows within the domestic economy are presented (F – I or XA – XB).At present two classifications of the flows within the domestic economy are presented (F – I or XA – XB). This is also related to the presentation of imports and exports, data items J and K.This is also related to the presentation of imports and exports, data items J and K.

14 Flows within the economy – 1 st option F. Supply of water to other institutional unitsF. Supply of water to other institutional units G. Water received from other institutional unitsG. Water received from other institutional units H. Wastewater delivered to other institutional unitsH. Wastewater delivered to other institutional units H.1. For treatment or disposalH.1. For treatment or disposal H.2. Not for treatment or disposal (for further use)H.2. Not for treatment or disposal (for further use) I. Wastewater received from other institutional unitsI. Wastewater received from other institutional units I.1. For treatment or disposalI.1. For treatment or disposal I.2. Not for treatment or disposal (for further use)I.2. Not for treatment or disposal (for further use)

15 Flows within the economy – 2 nd option XA. Supply of water or discharge of wastewater to other institutional units XA.1. Supply of water XA.2. Wastewater delivered XA.2.1. For treatment or disposal XA.2.2. Not for treatment or disposal (for further use) XB. Water and wastewater received from other institutional units XB.1. Water received XB.2. Wastewater received XB.2.1. For treatment or disposal XB.2.2. Not for treatment or disposal (for further use)

16 Question 10 – Should the presentation of data items for imports and exports be consistent with the presentation of flows? At present only one option is shown in the draft IRWS and this is consistent with the XA – XB presentation.

17 Imports and exports – 1 st option (consistent with the “F – I” presentation but not shown in the current draft) J. Water imported and exported J.1. Water (CPC Ver.2, 1800) imported J.2. Water (CPC Ver.2, 1800) exported K. Wastewater imported and exported K.1. Wastewater imported K.1.1. For treatment or disposal (CPC Ver.2, 9410) K.1.2. Not for treatment or disposal K.2. Wastewater and sewage exported K.2.1. For treatment or disposal (CPC Ver.2, 9410) K.2.2. Not for treatment or disposal

18 Imports and exports – 2 nd option (as in current draft and consistent with the “XA – XB presentation”) J. Water and wastewater imported J.1. Water (CPC Ver.2, 1800) imported J.2. Wastewater and sewage imported J.3.1. For treatment or disposal (CPC Ver.2, 9410) J.3.2. Not for treatment or disposal (for further use) K. Water and wastewater exported K.1. Water (CPC Ver.2, 1800) exported K.2. Wastewater and sewage exported K.2.1. For treatment or disposal (CPC Ver.2, 9410) K.2.2. Not for treatment or disposal (for further use)

19 Question 11 – Should the physical supply and use of bottled water be included in the list of physical data items? If included what should the definition of bottled water be elaborated? (i.e. in terms of size of the bottle, e.g. less than 20 litres)If included what should the definition of bottled water be elaborated? (i.e. in terms of size of the bottle, e.g. less than 20 litres)

20 Bottled water (CPC Ver. 2, 2441) Definition: Waters (including mineral waters and aerated waters), not sweetened nor flavoured (except natural water, ice and snow) This is a small volume but may be of policy interest to some countries or agenciesThis is a small volume but may be of policy interest to some countries or agencies It would provide a matching counter part to the monetary data item on the value of bottled water (Data item Q.1)It would provide a matching counter part to the monetary data item on the value of bottled water (Data item Q.1)

21 Question 12 – How much detail needs to be shown in the losses for distribution? At present data item M.1. is divided into six sub-items.At present data item M.1. is divided into six sub-items. This level of disaggregation is not possible for many countriesThis level of disaggregation is not possible for many countries It is proposed by some countries to remove this level of detail from the list, but to keep it the text and in the supplementary list.It is proposed by some countries to remove this level of detail from the list, but to keep it the text and in the supplementary list.

22 Losses of water (Data items M.1.) – current M. Losses of water and wastewater M.1. Losses of water in distribution M.1.1. Due to theft M.1.2. Due to leakage M.1.3. Due to burst mains M.1.4. Due to evaporation M.1.5. Due to meter errors M.1.6. Unaccounted losses M.2. Losses of water from wastewater collection

23 Losses of water (Data items M.1.) – proposed M. Losses of water and wastewater M.1. Losses of water in distribution M.2. Losses of water from wastewater collection

24 Question 13 – Is this level of sub-division needed for waterborne emissions to the environment (Data item 0) Emissions are shown according to the water resources that receive them.Emissions are shown according to the water resources that receive them. For the inland water resources these are sub-divided into surface water, groundwater and soil waterFor the inland water resources these are sub-divided into surface water, groundwater and soil water

25 Waterborne emissions to the environment – current O. Waterborne emissions to the environment O.1. From point sources to the environment O.1.1. To inland water resources O.1.1.1. To surface water O.1.1.2. To groundwater O.1.1.3. To soil water O.1.1.a. After on-site treatment O.1.1.b. Without on-site treatment O.1.2. To the sea O.1.2.a. After on-site treatment O.1.2.b. Without on-site treatment O.2. From diffuse sources to the environment O.2.1. To inland water resources O.2.1.1. To surface water O.2.1.2. To groundwater O.2.1.3. To soil water O.2.2. To the sea

26 Section D – Monetary data items P. Economic flows related to water supply Q. Sales of bottled water R. Economic flows related to sewerage services S. Water supply and sewerage infrastructure

27 Question 14 – Should the value of bottled water be included? Bottled water (Q.1) may be a small physical volume of water but may account for a significantly higher volume in monetary termsBottled water (Q.1) may be a small physical volume of water but may account for a significantly higher volume in monetary terms Note this is related to the question on whether to include in the physical data items and to the definition of bottled waterNote this is related to the question on whether to include in the physical data items and to the definition of bottled water

28 Question 15 – Should the costs for water supply and sewerage be further elaborated? It has been suggested to add in explicitly: Capital costsCapital costs DepreciationDepreciation Cost of water licensesCost of water licenses Water tradingWater trading

29 Question 16 – Should economic losses in the form of “lost revenue” be included? Lost revenue are the unpaid invoices or bills of water users. This is a concern for some countries.

30 Section E – Social-demographic data items V. Type of water supplyV. Type of water supply W. Type of toilet and sewerage disposalW. Type of toilet and sewerage disposal

31 Others questions Question 17 Should ecological flows be added to the list of data items? If so what are the countries practices for defining these? Question 18 Should water rights be added to the list of data items? If so what are the countries practices for defining these? Question 19 Should we add in the number of connections to the distribution network that have a meter?

32 Questions to the EGM on Chapter IV: Question 1 – Should each data item make reference to the need for spatial and industry disaggregation? Question 2 – Should more on the units of measurement be included (e.g. m 3 ) Question 3 – Can the list of data items be shortened or can the items be prioritised? Question 4 – Is the definition of renewable and non- renewable groundwater (Data items A.2.1 and A.2.2 and E.1.2.1 and E.1.2.2) appropriate? Question 5 – Should wetlands be added to the list of water resources under Data item A?

33 Questions to the EGM on Chapter IV: Question 6 – Is the level of detail in Data item E (Abstraction) necessary? Question 7 – Can the definition of wastewater be clarified? Question 8 – Should the supply of treated or untreated wastewater (or re-use water in SEEAW) be shown in an elaboration of data items G and F? Question 9 – Which presentation of data items for flows within the domestic economy is preferred? Question 10 – Should the presentation of data items for imports and exports be consistent with the presentation of flows?

34 Questions to the EGM on Chapter IV: Question 11 – Should the physical supply and use of bottled water be included in the list of physical data items? Question 12 – How much detail needs to be shown in the losses for distribution? Question 13 – Is this level of sub-division needed for waterborne emissions to the environment (Data item 0) Question 14 – Should the value of bottled water be included? Question 15 – Should the costs for water supply and sewerage be further elaborated?

35 Questions to the EGM on Chapter IV: Question 16 – Should economic losses in the form of “lost revenue” be included? Question 17 – Should ecological flows be added to the list of data items? If so what are the countries practices for defining these? Question 17 – Should economic losses in the form of “lost revenue” be included? Question 18 –Should water rights be added to the list of data items? If so what are the countries practices for defining these? Question 19 –– Should we add in the number of connections to the distribution network that have a meter?


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