Study Guide for
the Final Exam (to
be held on December 14, 2007)
The final exam is cumulative.
Consult two study guides from earlier tests for the cumulative part of
the exam. There will be 10 definitions
(5 points each), two short-answer questions (10 points each), and an essay
question (30 points) in the test. You
will not have to write any equation, unless you want to use them to shorten
your explanations, but sketches, maps, and other illustrations will be helpful
in answering some of the questions.
Know the
following terms:
Theis equation, Theis Type Curve, Well Function,
drawdown, Cooper-Jacob's method, Leakance, Hantush-Jacob method, non-steady state radial flow, steady
state flow, bentonite packing, purging well, drilling
log, casing and screening of well, static water level, data logger (Mini
Troll), nest of piezometers, seepage velocity,
superposition of drawdown, image well, recovery test, step pumping test,
specific capacity, slug test, cone of impression, impervious boundary vs. recharge
boundary, groundwater models, calibration of models, sensitivity test,
finite-element model, finite-difference model, WELFLO, MODFLOW, variable grids,
dispersion, dispersivity, variance, retardation coefficient, Fick’s Law,
diffusion, hydrodynamic dispersion, advection, Clean Water Act, maximum
contaminant level (MCL), beneficial uses, volatile organic compounds (VOC),
LNAPL, DNAPL, BTEX, chlorinated solvents (TCE, PCE), point vs. non-point
sources of pollution, pump and treat, bioremediation, permeable barrier.
Short answer
questions:
** What is the well
theory based on? What are some
assumptions behind the well theory? How
realistic are those assumptions?
**
What is the Theis Equation? Why is it considered another fundamental
principle of GW flow? How can it be used
to determine T, and S. What steps are
involved in using Theis’ Equation to determine
formation constant or aquifer parameters?
** How does the Cooper-Jacob's method
vary from Theis method of determining aquifer
properties? Which is (Theis or Cooper-Jacob) a better methods? Why?
What steps are involved in using the Cooper-Jacob’s methods to determine
aquifer parameters for a time-drawdown and distance-drawdown method?
** What is the
contribution of Hantush-Jacob to well theory?
** Know the Principle of Superposition of drawdown and its
applications and importance in understanding recovery of water table, results
or prediction of step pumping, and recharge and discharge boundaries.
** What is a slug test?
What is packer test? How are they
different? What are some pros and cons
of slug test and packer test? Know
different types of slug tests and their similarities and differences.
** What is groundwater modeling?
What types of models are used to simulate GW flow characteristics? What are some pros and cons of these
models? How is MODFLOW different from
WELFLO or other models?
** Why do we need GW models? What data do you need to develop
models? What steps (model protocol) are
involved in developing models?
** What are some uses of modeling?
How does GW flow models vary from solute
transport models? What are some limitations?
** What
the major solute transport processes?
How are they related to each other?
What are some importance and implications (with examples) of these
processes?
** What are the categories, frequency of occurrence, and priority
ranking of groundwater pollution? What
are some common sources of groundwater?
** What
the most commonly used remediation techniques/methods in treating contaminated
groundwater and soil?
** What is BMP? What are some specific examples of BMPs in agriculture that might help improve water quality
in a watershed?
The essay
question: you will have to be able to synthesize information from various
topics to answer this question. To best
answer this question, formulate an outline in your head before you attempt to
elaborate. At the very least, you should
have a bulleted outline that summarizes your thoughts on the topic. Keep in mind that your answer should
incorporate as much concepts and theories of hydrogeology as possible (after
all you are writing this essay for a Hydro class!)