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Drainage and Leaching

Introduction

Leaching is the process of pesticide movement with water flowing down in the soil profile. 
Drainage, in turn, covers the case when this water flows into a subsurface drainage network connected to surface water, while leaching covers the case when it flows into groundwater. If not managed properly, this water movement can cause water contamination. 
The focus of this section of the TOPPS website is to inform about Best Management Practices (BMPs) to minimise pesticide water contamination through drainage and leaching.
Go to Key documents on Drainage & Leaching

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