18-Env-B4 Site Assessment and Remediation
Worked solutions to 6 past sittings (2013–2019), 46 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.
- Two of Three Questions (3 sittings): December 2015 Q6 · December 2014 Q6 · May 2014 Q6
- Migration Pathways (2 sittings): December 2019 Q1 · December 2017 Q1
Questions by sitting
December 2019
- Question 1: PCE Spill – Migration Pathways and Site Assessment
- Question 2: Preliminary Site Assessment – Former GM Assembly Plant, Oshawa
- Question 3: Brownfield Redevelopment – Toronto Housing Shortage
- Question 4: Bioventing for Petroleum Hydrocarbon Remediation
- Question 5: "Dig and Dump" – Merits, Challenges, and RSC Requirement
- Question 6: Section B — answer ONE of TWO (both answered)
- Question 7: Gasoline Tank Leak – Release Mass and Bioventing Air Exchanges
December 2017
- Question 1: Migration Pathways and Sampling for an Airport Kerosene Spill
- Question 2: Phase II Investigation and Remediation of a Closed Chromium Plating Facility
- Question 3: Record of Site Condition — Purpose, Content and Responsibility
- Question 4: On-Site vs. Off-Site Treatment of Contaminated Brownfield Soil in Southern Ontario
- Question 5: Parameters and Modelling Relationships for DNAPL Infiltration After a Tanker-Car Derailment
- Question 6: Section B — One of Two Questions
- Question 7: Evaporative Loss Time for a Gasoline Spill in Sandy Loam Soil
December 2015
- Question 1: Sampling Plan for a Rail-Yard Crude Oil Spill
- Question 2: In-Situ vs. Ex-Situ Remediation of a Former Munitions Factory
- Question 3: Phase I vs. Phase II Environmental Site Assessments
- Question 4: Brownfield Redevelopment in Central Southern Ontario
- Question 5: Modelling a Gasoline Release from an Underground Storage Tank
- Question 6: Section B — Two of Three Questions
- Question 7: TCE Migration and Pump-and-Treat Remediation
- Question 8: Bioventing a Gasoline-Contaminated Soil Pile
December 2014
- Question 1: Site Assessment for a Former Plating Facility
- Question 2: Leachate Sampling Program for a Closed Hazardous Waste Landfill
- Question 3: Rail Tanker Derailment — PCE Release
- Question 4: First Response to a Mercury Spill at a Landfill
- Question 5: Environmental Impact of Hydraulic Fracturing near Chatham, Ontario
- Question 6: Section B — Two of Three Questions
- Question 7: Three-Phase Equilibrium Partitioning of Toluene
- Question 8: Retarded Contaminant Travel Time, Pond 1 to Pond 2
May 2014
- Question 1: Site Assessment for a Dry-Cleaning Unit (PCE)
- Question 2: Phase II Sampling at a Closing Fastener Plant
- Question 3: Rail-Tanker Crude Oil Derailment — Fate in the Vadose Zone
- Question 4: First-Responder Decisions Protecting a Downgradient Wetland
- Question 5: Record of Site Condition for a Brownfield Redevelopment
- Question 6: Section B — Two of Three Questions
- Question 7: Benzene Sorption and Retarded Plume Travel Time
- Question 8: m-Xylene Pool Volatilization Time
May 2013
- Question 1: Site Assessment for a Former Car-Rim Stamping Facility
- Question 2: Sampling Program for a Closed Heavy-Metal Plating Facility
- Question 3: Fate and Transport of a Leaking Gasoline UST
- Question 4: Ideal Remediation Solution for the Combined Soil/Groundwater Impact
- Question 5: Barriers to Brownfield Redevelopment
- Question 6: Pump-and-Treat Clean-Up Time for a TCE Spill
- Question 7: Bioventing Air Flow and First-Order Remediation Time
- Question 8: Sorption-Controlled Extent of a BTEX Wastewater Spill