Water. Desalination + reuse
Issue link: https://fhpublishing.uberflip.com/i/1085636
March 2019 Water. desalination + reuse Far Site 31 The five pillars of BHP's water stewardship strategy 1 Risk: Embed processes and systems to effectively manage water-related risks and realise opportunities at a catchment level in the short and longer-term. 2 Technology: Leverage technology solutions that drive a step change reduction in water-related risks, realise opportunities and deliver multiple benefits. 3 Value: Effectively value water investment and operational decisions through integration into strategy, planning and evaluation frameworks. 4 Disclosure: Transparently disclose water-related risks, management and performance at an asset level. 5 Collective action: Collaborate with stakeholders to improve regional water policy and catchment governance and address shared water challenges within our communities and across our value chain. Western Australia Eastern Australia Chile North America Total Input by quality Type 1 18,210 7,930 2,810 28,940 Type 2 15,200 34,200 3,300 52,700 Type 3 41,730 12,260 179,780 30,290 264,070 Input by source Surface water 1,450 37,020 6,270 3,850 48,590 Groundwater 55,080 17,370 52,730 2,690 127,870 Seawater 18,610 0 120,780 29,860 169,250 Input totals 75,140 54,390 179,780 36,400 345,710 Output by quality Type 1 20,390 21,450 32,280 0 74,130 Type 2 4,580 1,830 0 320 6,730 Type 3 48,320 30,050 68,690 35,940 183,000 Output by destination Surface water 410 0 1,120 320 1,850 Groundwater 0 1,180 830 10 2,020 Seawater 18,620 40 66,410 29,870 114,940 Evaporation/ entrainment 53,950 52,110 32,610 6,060 114,730 Third party 320 0 0 0 320 Reused/ recycled 21,620 23,760 220,250 90 285,720 Output totals 73,290 53,330 100,970 36,260 263,860 BHP water inputs and outputs by region, water quality and source during 2018 (1,000s of m3) Total water inputs across BHP's operations increased in 2018 owing to strike action at Escondida temporarily halting production in 2017. The use of seawater increased following commissioning of Escondida's new desalination plant. Water quality definitions from Minerals Council of Australia Water Accounting Framework Input - Output Model l Type 1 water is of a high qual- ity and would require minimal (if any) treatment to raise the quality to appropriate drink- ing water standards. l Type 2 water is of a medium quality and would require moderate treatment to meet drinking water standards; it may have a high salinity threshold of no higher than 5,000 milligrams per litre total dissolved solids and other individual constituents. l Type 3 water is of a low quality with individual constituents encompassing high values of Total Dissolved Solids, elevated levels of metals or extreme levels of pH; it would require significant treat - ment to meet drinking water standards. This type of water encompasses sea water. BHP takes proactive stance on water reporting BHP published its first standalone water report in 2018. The document provides an overview of the company's water risk exposure and its current water perfor- mance. BHP is the first ICMM member to produce such an in-depth report and has set the bar for others to reach. BHP's water report includes site-level water sensitivity assessments which look at various criteria under the categories climate, water source interactions, competition for resources and regulation. Escondida copper mine, Chile, has 'high influence' on water sensitivity in terms of groundwater interactions, stakeholder concern and proximity to conservation areas. Overall, the site's catchment-level water sensitivity rating is 'high'. Newmont Among the world's largest gold producers. Headquarters: Greenwood Village, US Listing: New York Orano A largely state-owned uranium producer. Headquarters: Paris Listing: Euronext Polyus The largest gold producer in Russia. Headquarters: Moscow Listing: Moscow Rio Tinto One of the world's largest globally- diversified mining groups. Headquarters: London Listing: London, New York, Australia South32 A globally-diversified metals and min- ing company. Headquarters: Perth Listing: Australia Sumitomo Metal Mining A global company specialising in mining, smelting, refining and manu- facturing advanced materials. Headquarters: Tokyo Listing: Tokyo Teck Canada's largest diversified resource company with operations in the Americas. Headquarters: Vancouver Listing: Toronto, New York Vale The largest miner in the Americas. Headquarters: Rio de Janiero Listing: Sao Paulo, New York, Paris, Madrid