Geology 127 (Hydrogeology)

Course material and assignments

California State University, Sacramento


This page contains links to the major parts of the course, including objectives, detailed course notes, homework assignments, homework solutions and sample test questions. Click on the appropriate section to view your assignments.  Time to get busy!

Week 1

Evaporation, transpiration, precipitation, infiltration, runoff, stream flow

Week 2

Water resources in the Central Valley.  Underflow, baseflow, hydrograph separation, baseflow recession, gaining and losing streams, stream gauging, flood frequency curves

Week 3

Levee and reservoir construction and capacities, 100 year flood, assessing flood danger, Web access to river and flood data

Week 4

Density, porosity, effective porosity, porosity of sediments and rocks, specific yield, Darcy's law, hydraulic conductivity, intrinsic permeability

Week 5

Confined and unconfined aquifers, water table, capillarity and capillary fringe, storage, specific yield, compressibility, leakage, homogeneity, heterogeneity and isotropy

Week 6

Energy of a fluid, total hydraulic head, pressure head and elevation head


First midterm exam: Friday, October 5th


Week 7

Hydraulic head with variable density, horizontal and vertical gradient, flow refraction

Week 8

Specific discharge, average linear flow velocity, equations of groundwater flow, steady-state flow in confined and unconfined aquifers, flow lines and flow nets

Week 9

Flow net workshop; Theis solution

Week 10

Neuman-Witherspoon solution for unconfined; aquifer; Thiem equation, well interference, image wells                                                                        

Week 11

Theis solution, estimating transmissivity, hydraulic conductivity and storativity from field data



Week 12

Second midterm exam: Wednesday, Nov. 14

Theis solution, continued

Week 13

Cooper-Jacob time and distance drawdown methods to determine transmissivity, hydraulic conducitivity and storativity

No class on Friday- Happy Thanksgiving

Week 14

Water chemistry, Piper and Stiff diagrams

Week 15

Hydrogeologic boundaries, recharge/discharge areas, flow patterns in homogenous aquifers, transient flow, springs and lakes, fracture flow, saltwater intrusion, effects of underlying geology on hydrogeologic terrain.

Final Exam

Practice tests:

  2005 final exam
2006 final exam 2008 final exam
2009 final exam 2010 final exam

Final exam: Friday, December 14th, 8:00 - 10:00

Note new day and time!!



Grade summary:  Please note:  I had an error in my original spreadsheet formula, and more than half the class had a lower grade posted than they should have.  The corrected formula and correct grades are shown below.  I will file grade change forms by hand, and the correct grade should appear within about 2 weeks.  If I filed the wrong grade for you, I will also e-mail you individually with the correct grade so that you know where you stand.  Sorry for the confusion!

revised grade summary