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Some conclusions:

Some conclusions: Glyphosate and AMPA: re-found in 15 out of 28 small water supply plants, where glyphosate and AMPA were found in 2001/2002.

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Some conclusions:

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  1. Some conclusions: • Glyphosate and AMPA: re-found in 15 out of 28 small water supply plants, where glyphosate and AMPA were found in 2001/2002. • Glyphosate and AMPA were found in 14 wells and in 1 drilling located in the bottom of a well => wells are much more vulnerable compared to drillings extracting ground water from deeper reservoir’s. • Glyphosate and AMPA sources are presumably adjacent fields at 5 small water plants. At 4 plants the pollution originated from local courtyards. The remaining sources were of different characters => every plant - it’s history. • Glyphosat/AMPA concentrations in the well water decreases with increasing distance to possible sources. • The well water were characterized by ground water originating from fractured till.

  2. Background: Glyphosate and AMPA were found frequently in upper ground water reservoir’s in StorstømSmall Water Plants with findings of glyphosate / AMPA.

  3. Background: distribution of AMPA in 4 counties. (Map- thickness of sediments over chalk)

  4. Background: BAM in small water plants(Map – pre quartenary, green = chalk)

  5. New project implemented in 2005: 38 small water plants with previous findings of glyphosate/AMPA in Storstrøm analytical program - Glyphosate/ AMPA, BAM, coliform bacteria, selected main components (NO3, SO4, Fe++, etc.) interview Hand drillings, sampling of ground water Multivariable statistic work

  6. Glyphosate and AMPA re-found in 15 plants out of 28 investigated. 4 plants closed + 8 inactive = 12 plants not running => app. 30%of the previous investigated plants are closed

  7. Distribution of glyphosate/AMPA in different types of plants28 investigated plants

  8. Glyphosate/AMPA, sample month and concentration. Results from 2001/2002 and from Storstrøm 2005 10 1 Konc i µg/l . 0,1 0,01 København Storstrøm Sønderjylland Viborg Storstrøm ny 0,001 juli juni maj april marts august januar februar oktober november december september

  9. Glyphosate/AMPA concentrations and groundwater table in hand drillings and wells Samples analyzed for glyphosate and AMPA

  10. water samples with findings of E.coli and coliform bacteria. 71 samples Hand drilling – findings of coliform bacteria and E.coli against depth of water table in hand drillings. Maximum counted bacteria -160

  11. Possiblesource areas

  12. Concentration and distance to possible scource. Water samples with findings of glyphosate/AMPA from wells and plants. Detection limit 0,01µg/l

  13. Geological description Isseg. – ice segmentation in till

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