Water footprint consultancy
Contact: Maarten.Verkerk@DHV.com
DHV’s water footprint consultancy -
Added value by integrating: • • • •
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WaterScan (proven method) for operational water footprint Impact analysis together with local experts of the DHV Group Wide range of water expertise (irrigation, treatment, IWRM, governance) Lessons learnt from other disciplines (CO2, ecological footprint, Cradle2Cradle, risk management)
Consultancy: Water Footprint Sustainability Assessment •
Pragmatic Standard (Water Footprint Manual)
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Active member of the Water Footprint Network www.waterfootprint.org
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DHV won the first full-scale water footprint sustainability assessment
Water footprint of a product ► the volume of fresh water used to produce the product, summed over the various steps of the production chain. ► when and where the water was used: a water footprint includes a temporal and spatial dimension. ► type of water use: green, blue, grey water footprint. Hoekstra, A.Y., 2010
Water footprint of a product Green water footprint ► volume of rainwater evaporated. Blue water footprint ► volume of surface or groundwater evaporated. Grey water footprint ► volume of polluted water. Hoekstra, A.Y., 2010
Components of a water footprint Direct water footprint
Indirect water footprint
Blue water footprint
Blue water footprint
Grey water footprint
Grey water footprint
Water withdrawal Non-consumptive water use (return flow)
The traditional statistics on water use
Water pollution
Green water footprint
Water consumption
Green water footprint
Hoekstra, A.Y., 2010
Steps 1 Spatiotemporalexplicit water footprint of a • product • individual • community • business
2 Impacts of the water footprint • environmental • social • economic
4
5
Monitoring and evaluation
Communication (Global Reporting Initiative)
3 Define measures
The water footprint of a food processor Virtual water flow
Farmer
green grey and water blue water use
Supply chain WF
Food processer
Virtual water flow
blue grey water water use
Operational WF
The traditional statistics on corporate water use
Retailer
blue grey water water use
Virtual water flow
Consumer
blue grey water water use
End-use WF of a product
Hoekstra, A.Y., 2010
Example (from roadshow 2007‌..)
Water footprint: measures Conventional: reduce, mitigate, compensate Water Footprint Network
Planet
Added value: Create win-win DHV People
People Profit
Profit
Planet
Example - Quick wash • Two buckets of water less per batch of laundry • Extra time for local population • Turnover +20 % in one year People
Profit
Planet
Where do we stand? - Water footprint will become a new global KPI. Method is still developing. - The impact analysis deserves more emphasis: a high water footprint is not a problem in itself. - Need for international standards to be developed with the Water Footprint Network
Where do we stand? DHV combines existing knowledge in water footprint projects. - DHV searches for solutions that create ‘added value’, which is more appealing to our clients than ‘reduction and mitigation measures’ as proposed by the Water Footprint Network
DHV’s first water footprint project - International firm in Fast Moving Consumer Goods - ~ 33 k₏ - To give an idea of the end product: http://www.sabmiller.com/index.asp ?pageid=149&newsid=1034
DHV’s first water footprint project Defined Activities
1. Kick off and case selection (Slovakia and Egypt) 2. Definition of needed information 3. Data acquisition from selected sites 4. Data analysis 5. Draft report and peer review 6. Brainstorm on recommendations and action plan 7. Final report
Possible roles SSI - Marketing (clients like SAB Miller) - In projects there is a need for • Information on climate and agricultural data • Experience with CLIMWAT (UN FAO Climate calculation module) and CROPWAT (UN FAO Agricultural calculation module) • Field knowledge (irrigation, impact assessment)