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Past Exam for GEOL 127 - HYDROGEOLOGY with Horner at Cal State-Sacramento (CSUS)

Exam Information

Material Type:Exam 2
Professor:Horner
Class:GEOL 127 - HYDROGEOLOGY
Subject:Geology
University:California State University - Sacramento
Term:Fall 2008
Keywords:
  • Hydraulic Conductivity
  • Groundwater Flow
  • Unconfined Aquifer
  • Conductivity
  • Hydrothermal
  • Temperature
  • Groundwater
  • Steady State
  • Confined Aquifer
  • Hydraulic Head
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Sample Document Text

33.26 ft Well A LSE = 31.26 ft Well B LSE = 31.80 ft 9.34ft 8.12 ft 34.26 ft Name _______________________________ Geology 127 (Hydrogeology) Exam #2 Fall, 2008 1) Draw a simple sketch that shows how you could construct an image well to model a constant head boundary. (5 points) 2) Show how the groundwater flow direction changes when a flow line crosses from a unit with high hydraulic conductivity to a unit with 4 orders of magnitude lower hydraulic conductivity. (15 points) 3) A confined aquifer is 25 ft thick and has a storativity of 0.0003. The aquifer is a sandy gravel, with a hydraulic conductivity of 225 ft/day. A fully penetrating extraction well in the aquifer is pumped at 175 gal/min for 14 days, although steady-state conditions were not reached. What drawdown would you predict in a monitoring well that is 1750 ft away? (20 points) 4) An unconfined aquifer is in steady state condition. The head in an upstream well is 18.51 ft, and the head in a downstream wel...

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