NivaarExam Prep

18-Geol-B1 Contaminant Hydrogeology

Worked solutions to 3 past sittings (2017–2018), 15 questions. Pick a sitting, or start from a topic below.

Topics across the sittings

Topics that come up in more than one sitting, taken from the headings of our worked solutions. A topic counts once per sitting.

Questions by sitting

May 2018

  1. Question 1: Diffusion, Hydrolysis, Capillary Rise, Sorption-Retardation, and Contaminant Attenuation Processes
  2. Question 2: Column Breakthrough, an Instantaneous Aquifer Spill, and the Conceptual Site Model
  3. Question 3: Four-Phase Soil-Vapour Partitioning and NAPL-Mixture Equilibrium
  4. Question 4: Two-Layer Vadose-Zone Saturation Profile via Brooks-Corey and the Kelvin Equation
  5. Question 5: Capillary Barriers, Wetting-Front Advance, DNAPL Remediation, and Landfill Siting

December 2017

  1. Question 1: Solute Dispersion – Continuous and Instantaneous Sources, Degradation Half-Life
  2. Question 2: Column Breakthrough, Vapour-Water Partitioning, and Retarded/Decaying Transport
  3. Question 3: Four-Phase Partitioning of Benzene and Toluene (No NAPL)
  4. Question 4: Capillarity – Rise in a Tube, a Non-Wetting Droplet Between Plates, and Total TCE Mass
  5. Question 5: Vadose-Zone Moisture Profiles, Brooks-Corey Parameter Fitting, and Wetting-Front Advance

May 2017

  1. Question 1: Dispersion/Diffusion Fundamentals, Isotope Hydrology, and Effective Diffusion Coefficient
  2. Question 2: Contamination Sources, Hydrolysis Decay, Henry's Law Partitioning, and a Gasoline Mass Balance
  3. Question 3: Retarded Transport Velocity and a PCE Column Breakthrough with Biodegradation
  4. Question 4: An Instantaneous Chloride Pulse, Capillary Rise, and Brooks-Corey Vadose-Zone Moisture
  5. Question 5: Conceptual Site Models, Bioremediation Suitability, and Managing Residual Gasoline