Homework 1
Department of Earth Science |Northeastern Illinois University

ESCI 337

Spring, 2009

Homework #4 (Due March 12, 2009)                                                                                                            Sanders

Caveat:  "The Situation" described in this problem is entirely fictitious

The Situation: Your clients are purchasing property and intend to build a small factory.  They intend to use ground water in some of their processing, so they will need a well.  They ask you to study the hydrogeology of the area and create a model so they can investigate different pumping scenarios.

Your Task:  Collect geologic data and create cross sections that illustrate the geologic and hydrogeologic setting of the study area.  Your cross sections should portray the hydrogeologic system--that is, you should be looking for flow system boundaries.  Keep that in mind as you decide how far a cross section should extend. 

The property boundaries are not firmly established yet, because the sale has not yet been completed.  However, it is in the area of latitude 42 degrees, 6.856 minutes N, and longitude 88 degrees, 54.963 minutes W. 

Cross Section Format Information:

Cross sections should extend from point to point, not necessarily in a straight line.  (Some call this a "fence diagram" instead of a cross section.)  Use as many points as you need to represent the system.

The following should be shown on cross sections:

Draw your cross section IN PENCIL!!!!  (You probably will have to change it after it is reviewed.)

You may find it helpful to use the USGS Map Locator (click "Download Digital Scans of Topo Maps"; also see Prof. Hemzacek's suggestions on downloading from this site) or GoogleEarth (earth.google.com).

We will be working on this project in class on Tuesday, but you should come in with much of the research already done.  By the end of the day on Tuesday, you should have delineated the boundaries of the flow system, collected all the boring log data you need, identified the hydrostratigraphic units, and sketched out cross sections.  You also may wish to get a start on the final drawing. 

Please cooperate with each other to collect data and analyze the problem.  However, each person is responsible for his/her own cross section drawing.

Copyright 2009 Laura L. Sanders.  Last updated March 5, 2009.