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Are our groundwatersources sufficiently protected?


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Are our groundwatersources used in the foodindustry and beverageindustry sufficiently protected?

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Are our groundwatersources sufficiently protected?

  2. 2. © Arcadis 2019 (geo)hydrology and water resources management (Delft Univ. Of Technology, 1984) Advisor for many industrial clients: Theme’s: Industrial watersupply, (ground)water quality and quantity, strategic advice, permits, soil- and groundwater pollution and -remediation, natural mineralwater Introducing: Han Teunissen
  3. 3. © Arcadis 2019 Project 2017/2018: 21 food industries in the province of Gelderland: Factsheets groundwater, originating from the European Water Framework Directive (KRW)
  4. 4. © Arcadis 2019 Initiative from the province using European Water Framework Directive (KRW) They consist of: 1. Description of water supply, groundwater sources/bored wells, filterdepths, watertreatment 2. Determining recharge area and 25-years zone 3. Understanding of land use and vulnerability of (sub)soil 4. Desk and archive research of historical soil- and groundwater pollution 5. Quality of pumped water 6. Risk assessment 7. Conclusions and recommendations towards taking action and/or monitoring Factsheets:
  5. 5. © Arcadis 2019 Examples of 10- and 25-year zones
  6. 6. © Arcadis 2019 Look at it from the perspective of these industries. They need excellent and unlimited groundwater resources for their industrial production. I repeat the question: “Are our (ground) watersources, used in the food- and beverage industry, sufficiently protected?”
  7. 7. © Arcadis 2019 But……… I will explain and nuance this answer in the coming slides The answer to this question is: NO !
  8. 8. © Arcadis 2019 1. Location and depth of recovery filters are often not chosen for groundwater protection, but are mainly determined by other business needs (i.e. transportation, client needs, real estate, human and material resources) 2. The industrial groundwater users do not have a big understanding about the quality of their pumped groundwater (source: factsheets Gelderland) 3. Often, they have too little knowledge about the threats and risks of their groundwater quality (source: factsheets province Gelderland) 4. There are no protection areas for industrial groundwater sources, in contrast to the municipal water supply 5. But…. Several measures and legislation have made a contribution to the reduction of risks Why not, or perhaps insufficiently ?
  9. 9. © Arcadis 2019 1. Soil remediaton, since mid 80’s: intensive clean-up operations, pollution control and risk-control 2. Dutch Directive Soil Protection (Richtlijn bodembescherming): prevention 3. Soil Protection Act (Wet bodembescherming), duty of care, responsibility for (new) soil pollution 4. International Directives, like Reach (allowing/permitting of chemicals) and the European Groundwater framework (protecting groundwater sources for human consumption) 5. Reduction and ban on the use of (toxic) plant and crop pesticides For example:
  10. 10. © Arcadis 2019 1. New threats, like emerging chemicals (pfas, GenX), and medicine residues 2. New uses for subsoil and groundwater, like geothermal energy and geothermal storage in groundwater 3. Water scarcity and droughts, declining fresh water reserves, more often and longer periodes of droughts and dry periods (like in 2018) Some new threats to groundwater contamination:
  11. 11. © Arcadis 2019 1. In fact strong comparison with industrial groundwatersources 2. 50% of groundwatersources for municipal watersupply in the Netherlands suffer from contamination with one or more existing or new contaminants 3. For municipal watersupply Protection zones exist since long time 4. But nevertheless contamination of sources with e.g. nitrate, plant protection products, historical groundwater pollution or emerging substances 5. More intensive and increasing watertreatment needed for good drinking water quality Municipal drinkingwatersupply from groundwatersources:
  12. 12. © Arcadis 2019 drinking water
  13. 13. © Arcadis 2019 1. Structural monitoring of pumped groundwater, intensive laboratory screening, also for emerging chemicals, medicine residues, etc.: monitoring plan 2. Calculate the recharge area or the 25-years zone 3. Monitor threats and risks within the recharge area or 25-years zone 4. Early warning: monitor groundwater upstream, at different depths 5. Agreements with neighbours and surrounding areas (responsibility and liability?) 6. Knowledge of developments in the neighbourhood: 7. Relocate the existing watersources to greater depth, underneath protected clay layers, if technically and legally applicable 8. Extra or more intensive water treatment (end of pipe) What can (food) industries do?
  14. 14. Ambition for the future: we have to move forward to a circular economy with no more persisting waste, but only biodegradable substances
  15. 15. © Arcadis 2019 Arcadis. Improving quality of life.