The basin is mostly flat with one slightly higher point creating a slight slope, which contributes to pooling of water. He referred to the drawing of the ground and water draining process. Water does not flow in underground rivers. Water seeps gradually through the ground to a discharge point. The major discharge point for the basin is Salmon Creek.
Trees are a very important element to prevent some flooding.
As it rains, water lands on trees and will evaporate, plants will capture some water from the soil. The remaining water discharges into the ground. The County has engaged in a study to evaluate the flow of water in the basin. Councilmember Kmet presented an example of how infiltration affects the water cycle with gravel and water. Every inch of rain that falls is equal to approximately four inches.