Environmental Engineering Reference
In-Depth Information
Figure 7.10. Spatial variation of
cadmium in groundwater, Westlea
(Values are in mg/l).
a pressure barrier to contaminant transport in the direction of regional groundwater flow.
Gum trees can also absorb some of the pollutants as they take up water from the aquifer.
Vegetating the dump will help reduce run-off and percolation, therefore decreasing the
movement of leachate to groundwater, which is currently encouraged by a perched water
table below the landfill.
Figure 7.11. Spatial variation of iron in
groundwater, Westlea (Values are in
mg/l).
