| Animations |
| 1. |
Surface water: This
illustration demonstrates how contaminants can enter surface
water and be carried to the intake of a drinking water
system.
View
animation (285k mov file) |
 |
| 2. |
Groundwater: This illustration
shows how contaminants can leak into the soil and enter
groundwater over time, eventually reaching a “wellhead” or
water intake.
View
animation (350k mov file) |
|
| 3. |
Zones: This illustration
demonstrates that the land around a wellhead or water intake
may be vulnerable to contamination. This shows multiple
sources of contamination moving through the ground and
being drawn in by a well.
A source of contamination may pose a greater risk to drinking
water the closer it is to the wellhead. Contamination may
pose a greater risk if it is able to move quickly through
some substances. For example, sand is more porous than
hard-packed clay and could allow contamination to move
through it more quickly.
View
animation (1.3M mov file) |
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