Constructing Potentiometric Surfaces - Wells G & H Superfund Site, Woburn, MAE. Scott Bair (Ohio State University) and Terry Lahm (Capital University)
SummaryStudents use well head measurements from the area surrounding wells G and H to construct potentiometric surfaces and groundwater flow. The exercise involves extrapolating between data points to draw the equipotential lines. Students are also asked to answer a set of questions about the process and the meaning of the results.
- Learn how to draw a potentiometric map based on well head data.
- Interpret the groundwater flow patterns based on well head data and potentiometric maps.
Context for UseThis activity was developed for an introductory level, mock-trial class centered around the Woburn, MA pollution trial. It is also appropriate for an introductory level structural geology or groundwater hydrology class.
Teaching Notes and Tips
- Potentiometric Surfaces Introduction and Activity (Microsoft Word 616kB Jul14 06)
- Well Head Maps (Excel 140kB Jun22 06)
- Potentiometric Surfaces Questions (Microsoft Word 45kB Jun22 06)
Students construct two potentiometric maps which are handed in assessment. They also complete a question set asking them to interpret the meaning of elements of the map and draw conclusions.
References and Resources
Chute, N.E. (1959) . Glacial geology of the Mystic Lakes-Fresh Pond area, Massachusetts. U. S. Geological Survey Bulletin 8755-531X; B 1061-F, 187-216.