Vertex Blog

High Resolution Site Characterization: From Humble Beginnings to Where we are Today!

About six years ago I began working with some innovative tools that profile subsurface conditions in real time.  While a lot of people are aware of these technologies and their main functions, whether it is profiling LNAPL impacts (LIF), dissolved phase impacts (MIP) or subsurface permeability (HPT), and now everyone is familiar with Electrical Conductivity

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Reflections on the Conference Circuit

by Kevin French Finding myself heading to Vancouver for some client meetings at the same time that the SMART Remediation event was scheduled this year, I offered to do a presentation on the use of bench-scale testing in remedial design.  It seemed a natural topic since we are well versed in this service and encounter

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What We’re Reading: 99 Stories of the Game

This one’s just for fun.  Hockey playoffs are upon us for the pros but also for all the hockey Moms and Dads out there. If you’re a fan of “old school” hockey, you’ll enjoy these tales about the origins of the Stanley Cup and the formative days of professional hockey.  Gretzky’s book does a great job

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2017 Holiday Quiz Prize Winner

Congratulations to Grace Ferguson of Stantec’s Waterloo office! Grace enjoyed our 2nd annual fun holiday quiz and was one of several people who scored a perfect 10 out of 10! Grace’s name was drawn from the pool of perfect scores. As the winner she was awarded: $50 Movie Gift Card Vertex swag package! A Free

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Finally, We Have Permeable Reactive Barriers for Petroleum Hydrocarbons!

When environmental practitioners hear the term Permeable Reactive Barrier (PRB), likely an “iron wall” most often comes to mind. This is not surprising since iron PRBs have a long history – they were installed as early as 1995 to treat dry-cleaning solvents. PRBs intercept and treat contaminated groundwater plumes. They are passive and sustainable systems,

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Canadian Know-How Helps Move Remediation Projects Ahead All Winter Long

As Canadians, we love to talk about the weather. It changes dramatically across the seasons and directly impacts our work and play time. Three feet of blowing snow may tend to force us indoors for Netflix marathons. But work still calls. It has been estimated that 50% of all construction activities are sensitive to weather

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Do You Know Why The Center of the Earth is Still So Hot?

When the Earth was formed 4.5 billion years ago it was a mass of molten rock. It has been cooling ever since- but very slowly. The inner core remains at an estimated temperature of greater than 5,000ºC. Interesting Fact: Moving up a mountain results in a temperature decrease of about 0.7ºC per 100 m of

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Dry Cleaning Fluids: A Brief History

Ancient Greeks and Romans used grease-absorbent earths and sands on clothing; the term “dry-cleaning” was likely coined as a result. Interestingly, this is where the term “fuller’s earth” originated. A fuller was a textile worker who, among other things, kneaded these materials into woollen cloth to absorb oils as part of the finishing process. Before

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The Dirt on Dry Cleaners

Or…Removing a Stain on the Environment For decades tetrachloroethylene (a.k.a. perchloroethylene, PCE or perc) was favoured as a dry cleaning fluid due to its strong degreasing power, relatively gentle action on fabrics, and non-flammable nature. In time, scientists came to understand the health and environmental impacts of perc releases into soil and groundwater. Perc itself

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The Manganese Menace: Real (Not Phantom)

The Grief It’s Causing For Toronto Developers, And What To Do About It Back in February of this year, the City of Toronto implemented some important changes to its Sewer Use Bylaw. What’s causing grief for developers and building owners is the new definition of private water i.e., water not purchased from the City but

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