BONUS* Pesticides and Water

Learning Objectives.

• Distinguish between point-source and nonpoint-source pollution
and give examples of each.
• Describe how site characteristics affect the chance of runoff and
subsequent risk of pesticide contamination of surface water.
• Define each of the following:
– Groundwater
– Water table
– Aquifer
• Explain how pesticides can get into groundwater.
• Describe how pesticide and site characteristics affect the rate of
leaching and subsequent risk of pesticide contamination of
• Give examples of label restrictions intended to minimize the risk
of surface water and groundwater contamination.
• Locate information on a pesticide label regarding surface water
and groundwater protection.
• List steps you can take to minimize the risk of pesticide
contamination of groundwater and surface waters.
• Describe the purpose and features of a containment pad for
mixing and loading pesticides.
• With respect to back-siphoning of pesticides into a water supply
when you are preparing a pesticide mix:
– Explain what it is and how it happens.
– Tell why it is a problem.
– Describe 3 ways to prevent back-siphoning into surface
water or groundwater.