Formative Assessment 1: Hydraulic Gradient

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Potentiometric surface map of the Spring Creek Groundwater Basin ca 1969.
Figure 29. Potentiometric surface map of the Spring Creek Groundwater Basin ca. 1969.
Source: USGS Scientific Investigations Report 2005-5091

Questions:

  1. Draw a few (~8-10) flow lines on the potentiometric surface map above.
     
  2. Where is the hydraulic gradient in the Spring Creek groundwater basin steepest? Where is it least steep?
     
  3. List two reasons why is it important to trace and define flowlines.

Files to Download

Download the worksheet to use when submitting your assignment.

Submitting Your Answers

Bring your printed diagram with flowlines and written answers to questions with you to class.

Grading and Rubric

A  scoring rubric will be provided by your instructor.