The Problem What to Do Rules Resources References Glossary

The graph shows the vertical variation in the amount of clay, silt, and sand in the soil profile from the soil pit. To derive this information, soil scientists collect soil samples and analyze them to determine the proportions of clay, silt, and sand particle sizes in each soil sample.

Is the soil sandier near the top or near the bottom of the pit?

Based on the relative proportion of sand shown in the graph on the right, would you expect liquids at 140 centimeters to move faster or slower than in the upper 60 centimeters of the profile?

The pipeline is buried approximately 5 feet (140 cm) below surface where the break occurred. Based on the graph at the right how did the the contaminants move down to the water table?

 

Previous Frame Next Frame