1. Point Vs Nonpoint Source Pollution

2. Point Source Pollution
-Direct discharge of pollutants into the water.

3. Non-point source pollution
-Indirect discharge of pollutants into water
- comes from a wide variety of sources
- Surface water run off

5. Porosity and Permeability
Porosity- is a measure of how much of a rock is open space. This space can be between grains or within cracks or cavities of the rock.

6. Porosity and Permeability
Permeability- is a measure of the ease with which a fluid (water in this case) can move through a porous rock.