NAMWA The Dutch system of Water Accounts

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NAMWA The Dutch system of Water Accounts

• Sjoerd Schenau
• CBS (Statistics Netherlands)
• National Accounts

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Contents

• 1. Introduction
• Environmental accounting
• 2. NAMWA
• Scope and methods
• 3. Current state of the art
• The Dutch NAMWA and applications
• 4. International work

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What is NAMWA?

• National Accounting Matrix including Water
  Accounts (NAMWA)
• Environmental accounting
• System of National Accounts (SNA)

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National Accounts

• 1. Detailed description of the national
  economy
• accounts, balance sheets
• 2. Key aggregate macroeconomic indicators
  (GDP, NI etc.)
• based on internationally agreed definitions,
  accounting rules SNA93, ESA

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Wa
What is environmental accounting ?
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Environmental accounts

• The environmental accounts are a statistical
  framework that describe the relation between the
  economy and the environment
• The environmental accounts are composed in all
  EU member states according to the same rules
• In the environmental accounts pollutants are
  allocated to the different indutsries (NACE) and
  households

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National Accounts
Environmental accounting !!!!
Social statistics
Environmental statistics
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Defenitions of Environmental accounting (SEEA)

• Satelite account of the National Accounts
• The environmental acocunts are made according to
  the definitions of National accounts

Emissions abroad are included !!
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Environmental accounts

• Air emission accounts
• Energy accounts
• Material flow accounts
• subsoil accounts
• Waste accounts
• Land use accounts
• Water emission accounts
• Water asset accounts
• Water flow accounts

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Work on NAMWA in the Netherlands

• Based on an experimental NAMWA published in 1996
• Collaboration between RIZA and Statistics
  Netherlands
• 2002 Extension of original NAMWA
• 2003-2005 further extension addition of more
  pollutants, more detail for river basins

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Scale National and River Basins
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(No Transcript)
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Economic parameters

• National overview of the expenses (vertical)
  and receipts (horizontal) with specific attention
  to water (waterboards, sewage taxes etc.)
• Regional production, use, value added, number
  of employees per industry

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NAMWA the matrix
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Distribution of economic value added generated in
the various river basins in the Netherlands
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Economic production 1996-2000
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Emission accounts

• National en regional emission registration
• overview of the production and absorption of
  emissions by the industries
• 78 substances o.a. P, N, heavy metals,
  pesticides etc.

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Origin of pollutants
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Destination of pollutants
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Distribution emissions over the industries (2000)
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GDP and environmental indicators national
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GDP and environmental indicators SCHELD
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Water accounts

• Water survey from the CBS (national and
  regional)
• every 5 years
• production and use of fresh water (ground-,
  surface- en drinking water) per NACE

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Use of water in 2001
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Results so far

• National NAMWA for 1996 t/m 2003
• Regional NAMWA for 1996 t/m 2002

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Usefulness of NAMWA for WFD (1)

• NAMWA provides a consistent integrated economic-
  environmental accounting framework which provides
• information about
• - Intensity of water use by branches of
  industry
• - The physical flows of supply of water
  services
• - Production costs of water services
• - Environmental taxes related to water
• at National and River Basin level

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Usefulness of NAMWA for WFD (2)
Hence NAMWA provides indicators about - Extent
and relative significance of water services -
Extent and relative significance of water use -
Cost recovery - Application of Polluter Pays
Principle
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Future work

• NAMWA as a regular product from 2002 onwards
• Calculate data for 1990-1995
• Waterbalance every year
• Composition of indicators
• Publication of the data (also on the internet)