The municipal permitting process for Sewer Discharge Agreements (SDAs) can be complex and frustrating at times. Ontario operates under a patchwork of different regulations where every municipality has its own unique permitting process. Some two-tier municipalities have separate application processes
Residential Condominium SDA Case Study
Background: A new residential condominium development in Toronto with three levels of underground parking levels. The developer retained Vertex to prepare dewatering and groundwater treatment plans, and to process two sewer discharge agreement (SDA) permits to cover both the short-term
Permeable Reactive Barriers: Quality Data Gathering creates Robust Designs
In the environmental industry the Permeable Reactive Barrier, or PRB, is a well known technology/strategy when dealing property boundary management and off-Site liability risk for mobile groundwater impacts. In fact, Vertex has already written about these technologies a few times
Using LLMiHpt to Optimize the Design of a Permeable Reactive Barrier
Over 300 years ago Alexander Pope said “a little knowledge is a dangerous thing”. In the case of many subsurface characterization programs being completed today, too little data is also a dangerous thing. It can result in wasted time, energy
Pump & Treat Systems: A Resurgence
When it comes to fashion, vintage trends always seem to come around again and again. When it comes to remediation, different technologies are popular for a time and then settle into more of a niche application, as they are supplanted
Case Study: P&T Enhanced ISCO – A Multi-Technology Approach for a Challenging Site
The following case study is a good example of how a Pump & Treat system was used to enhance the natural hydraulic gradients at a site to effectively pull chemical oxidants across an otherwise inaccessible area and facilitate the destruction
Delivering Success: Remediating Bedrock and Other Complex Geologies!
Have you ever encountered a site where difficult subsurface conditions left you wondering whether remediation was even possible? Maybe the site had impacts in bedrock or other tough stratigraphy such as flowing sands, cobbles and boulders, and/or tight tills. These
Bedrock Remediation Cast Study – Where There’s a Will There’s a Way
Overview The site was formerly operated as a steel manufacturing facility that included historic degreasing operations and chemical storage. Environmental investigations identified the presence of chlorinated solvents, including trichloroethylene (TCE), dichloroethylene (DCE) isomers, and vinyl chloride (VC), in groundwater
Collaborative Remedial Design Services
So, you’ve identified contamination at your site and are considering remediation and/or risk management. Chances are this is not your area of expertise. Perhaps you’ve had some experience with remediation in the past; perhaps not at all. Consider as well
Improved Activated Carbon-Based Products in Canada!
What was the biggest game changer in the in-situ Canadian environmental market in recent years? In our opinion it was the entry of the first activated carbon-based, injectable remedial amendments in 2015. Well, the remediation game has just been stepped