Water

EN8 Total water withdrawal

Boliden’s operations are located in areas where there is no scarcity of water, and no water sources are significantly affected by the water withdrawal by Boliden’s operations. Boliden aims, nonetheless, to reduce both its consumption of fresh water and the discharge of used water. The water volumes are measured and/or calculated for each site by the use of flow meters and/or the monitoring of pump operating data.

Total water withdrawal by source

2014

2015

2016

Surface water (sea)

111

92

80

Surface water (inland)

43

39

40

Ground water

17

16

17

Collected rain water

1

1

1

Municipal water

2

2

2

Total water withdrawal in million m3

173

150

140

EN10 Water recycled and reused

In mining, water is typically used in mineral processing and slurry transport; while in smelting, it is used for cooling and gas cleaning purposes. Boliden’s operations do not re-use water from other organisations, but in Harjavalta and Kokkola, waste water from adjacent operations is ducted into Boliden’s waste water treatment plants for treatment before being discharged to recipients. These volumes are not reported to Boliden. All other water volumes are based on data from flow meters.

Water recycled and reused

2014

2015

2016

Recycled volume in million m3

117

107

110

Percentage of water recycled

68%

72%

78%