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18-Geol-A2 Hydrogeology: December 2016

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Darcy Velocity, Seepage Velocity, Permeameter K, and Storage Changes
  2. Question 2 Flow Net Through an Earthen Dam
  3. Question 3 Vertical Flow Through Three Layered Formations
  4. Question 4 Well Drawdown in a Confined Aquifer — Fully Confined vs. Leaky
  5. Question 5 Groundwater Exploration Methods, K-Determination Methods, and Slug vs. Pump Tests

Start with Question 1 →

National Exams — December 2016 — 04-Geol-A2, Hydrogeology. Three-hour, open-book exam; any non-communicating calculator permitted. FIVE questions constitute a complete paper, each of equal value; most questions require an essay-format answer with work shown. Unless otherwise specified, water density = 1000 kg/m³, water viscosity = 0.001 kg/(m·s), and g = 9.81 m/s² — all five are solved below for completeness.

Reference texts: Freeze & Cherry, Groundwater (Prentice-Hall, 1979) — Darcy's law, storage/specific yield, flow nets, layered vertical flow, and the Theis/Hantush-Jacob well-hydraulics chapters used throughout this paper.