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Total water use

in millions of m3
2004		254.8
2003		177.8
2002		163.56

The increase in total water use is due to the Pechiney acquisition.

Total water use rate

in millions of m3 per million of US$ sales
2004		0.0102
2003		0.0128
2002		0.0131

Alcan demonstrated significant improvement in 2004, reducing its rate of water consumption. GO-PDM, a data collection tool that will improve the ability to assess its use of water resources and identify opportunities for improving performance, is currently being implemented.

Water consumption by source

2004

A Ground water 31% B   Seawater   32% C   Surface water   29% D   Water from public network   8%

2003

A Seawater (cubic metres) use for power 38% B   Tank/Rainwater (cubic metres)   7% C   Fresh surface water river/lake (cubic metres)   29% D   Alcan-owned well/bore hole water (cubic metres)   19% E   Public net drinking water (cubic metres)   6% F   Water recycled from bauxite residue lakes   1%

Alcan's definitions of water sources were modified between 2003 and 2004.