Department of Earth Science |Northeastern Illinois University

PRINCIPLES OF HYDROGEOLOGY
ESCI 337
Fall, 2005

Measuring Water Levels in Wells

1) Find the depth to water in the well to which you are assigned (circle one):     Well #1     /     Well #2     /    Well #3.

2) Find the total depth of the well.


3) Determine the volume of water that is standing in the well right now.
 

4) Determine how many five gallon buckets it would take to hold this volume.

5) Determine how many five-gallon buckets of water it would take to hold half the volume of water in the well.


Before you perform the next steps, carefully review them all and develop a plan for making the
required measurements.  Then, check with the instructor before proceeding.

6)
Mark the time before you begin.  Remove from the well the volume you calculated in Step 5.  Immediately after withdrawing this volume of water, measure depth to water again.  (Later, in the lab report, explain your observations.)

7) Monitor water level frequently for the next several minutes, recording time and depth measurements.

8) Prepare a graph of the data you recorded in Step 6.  Label the graph with your names and the Well Number, and post the graph on the chalkboard.

9)
Explain your observations.  Also explain any differences between what is shown by your graphed data and that of the other groups.

10)
Make a list of variables that might affect the relationship between pumping and water level in the well. 

11) Propose a test that would allow you to quantify the relationship between pumping and water level in the well.

Final Report

Prepare a neat report that includes the following items:

  * Group members' names
  * Well number
  * Your responses to Steps 1-11, including a neat table showing your data, and your graph.

Before leaving, hand in one lab report per group.  All group members will receive the same grade on the lab.

Department of Earth Science | Northeastern Illinois University

© 2005 Laura L. Sanders.  Last updated August 31, 2005.