1. Describe the flow field for the following system which is surrounded by no-flow boundaries and has homogeneous K, no recharge, and river stages fixed as indicated.



answer to 1

2. What is unusual about the following contours of measured head? What would you have to do with your model to cause this pattern to occur?



answer to 2

3. What would you do to get a model that exhibits heads like this:



to look like this:



answer to 3

4. The following model has homogeneous K and no recharge. Heads in the nested piezometers, A and B, are known and do not match the simulated values (the dashed lines of equal head are vertical and range from 98' on the left to 92' on the right). What would you do to improve the calibration of this cross-section flow model?



answer to 4

5. Given the river discharge rates reported by MODFLOW at nodes 1 through 4, what is the base flow at A, B, and C?

node   cfs
  1       -10
  2       -10
  3        15
  4       -30


answer to 5

6. The material zones, heads, distances in the diagram below are perfectly known. What are K1 and K2?



answer to 6

7. Suppose you know that Q at right face of the diagram in #6 is 90.91 ft3/day? What are K1 and K2?

answer to 7