Point and non-point source leaching of pesticides in a till groundwater catchment

Preface

Participating institution

This report was funded by the Danish Pesticide Research Programme as a collaborative project between Danish Geotechnical Institute (DGI), Geological Survey of Denmark and Greenland (GEUS), National Environmental Research Institute (NERI), the County of West Sealand (CWS) and CNS-Miljø ApS.

Evaluation committee

The work has been followed and discussed by an evaluation committee established by the Danish Environmental Protection Agency (DEPA).

The members of the committee were:

Charirmann: Steen Marcher (DEPA)

Project Leader: Peter R. Jørgensen (DGI)

Niels Henrik Spliid (NERI)

Arne Helweg (Pesticide Center in Flakkebjerg)

Martin Hansen (GEUS)

Ole Stig Jacobsen (GEUS)

Anne Brehmer (CWS)

Distribution of work tasks

The distribution of work tasks among the project institutions was: DGI: Responsible of planning and coordination of the project, responsible of field work, excavations, augering, and installation of angled monitoring boreholes, large undisturbed column sampling and column laboratory experiments, tritium investigations and 2D-FRACTRAN modelling of tritium transport, pesticide monitoring in time series from angled boreholes, compilation and editing of the final report. DMU: Pesticide analyses, contribution to final report. GEUS: Water balance modelling for the project area, modelling of laboratory experiment, adsorption laboratory studies and sensitivity analyses of controlling parameters in pesticide leaching. CWS: Removal of contaminated soil excavated from point source spill and supply of replacement soil, collaboration in historic mapping of pesticide use. CNS: Historic investigation and mapping of pesticide use in the project area.