Lecture 14 And Moses lifted up his hand, And with his rod he smote the rock twice: And the water came out abundantly: And the congregation drank and their beasts also. - Deuteronomy 6:11 Groundwater Webpage for course (daytime) Webpage for course (nighttime)

Hydrologic Cycle

Water moves THROUGH the rocks

Hydrologic Cycle Porosity Permeability

Porosity Permeability SandstoneShale

Aquifer Aquiclude

So lets talk about the Water Table… Hydraulic gradient Springs

Fig Fig. 10.7

Lets pump some water…

Lets pump a lot of water… Cone of Depression

Fig

… near the coast Salt water incursion

here is another situation … Confined Aquifer

Groundwater You can use it. You can overuse it. You can abuse it.

Groundwater abuse

Fig

Groundwater Limestone caverns Geodes hp%3FcPath%3D45&usg Fig

Groundwater Karst Topography

Sinkholes

Fig B

Groundwater “water witching” (dousing)