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Results of Groundwater Characterisation in the International Elbe River Basin District

Results of Groundwater Characterisation in the International Elbe River Basin District. Hana Prchalová, WRI T.G.M. Prague Dresden, 4. 3. 2005. Groundwater. Why Groundwater?. Groundwater account for 97% of freshwater. 75 % of EU inhabitants depend on groundwater for water supply.

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Results of Groundwater Characterisation in the International Elbe River Basin District

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  1. Results of Groundwater Characterisation in the International Elbe River Basin District Hana Prchalová, WRI T.G.M. Prague Dresden, 4. 3. 2005

  2. Groundwater Why Groundwater? • Groundwater account for 97% of freshwater • 75 % of EU inhabitants depend on groundwater for water supply • 50 – 90 % of the river flow come from groundwater • Terrestrial ecosystem and surface water are affected by groundwater

  3. Groundwater Bodies Characterisation • Delineation of groundwater bodies • Characteristics of groundwater bodies • General character of overlying strata • Significant pressures for groundwater • Assessement of groundwater bodies (achieving of environmental objectives 2015) • Preliminary identification of GW bodies with less stringent objectives

  4. Groundwater Bodies Characterisation • Different aproaches and methods • Comparable results • Evaluated anthropogennic pressures: • Groundwater abstractions • Point sources of pollution • Diffuse sources of pollution • Other pressures

  5. Results of Characterisation – Delineation of GW Bodies

  6. Results of Characterisation – Delineation of GW Bodies

  7. Results of Characterisation – Achieving of Quantity Objectives

  8. Results of Characterisation – Achieving of Chemical Objectives

  9. Results of Characterisation – Achieving of Objectives

  10. Results of Characterisation – Achieving of Objectives

  11. Results of Characterisation • Groundwater abstractions are not essential problem • Point sources of pollution – old contaminated sites are especially significant • Diffuse sources of pollution – agriculture is significant pressure • Significant other pressures – mainly minning areas (former and recent exploitation)

  12. Less Stringent Groundwater Bodies - Quantity

  13. Less Stringent Groundwater Bodies - Chemical

  14. Less Stringent Groundwater Bodies • Preliminary identification only • Predominantly impact of exploitation

  15. Thank you for your attention

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