# 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 ConductivityGroundwater FlowUnconfined AquiferConductivityHydrothermalTemperatureGroundwaterSteady StateConfined AquiferHydraulic Head

## 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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