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How Is Chemical Remediation Accomplished?
This was a recent site which AEL worked on, which was contaminated after a fuel tank leaked on the property. A chemical remediation was best suited for the site.  This photo shows the excavator beginning to dig a hole for remediation trench.  The hole would be approximately 5 m x 5 m down to groundwater,...
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Clean Fill Stockpile Sampling
AEL environment is routinely tasked with finding clean fill for our existing projects. Since 2021, standards developed by the Ministry of the Environment, Conservation and Parks  (MECP) in Ontario (O.Reg. 406/19) require soil transferred from one site to another to meet the receiving Site standards to be considered acceptable “clean” fill. In May 2015, AEL...
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Ensuring High-Quality Data to Reduce Uncertainty in Phase 2 ESA
When gathering data for a Phase 2 ESA or other reports through on-site testing or environmental site screening, it is important to note that the results are only as good as the data.  On-Site Data Quality & Why It Matters: Inaccurate data means that decisions will be based on erroneous beliefs and a poor site...
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Understanding a CSM – The Basics in Ontario
When managing a site in Ontario, it is essential to understand Ontario Regulation 153/04 and the environmental due diligence it requires. What Is A CSM? A Conceptual Site Model (CSM) is one of the requirements that shapes the Environmental Site Assessment (ESA) process (both Phase I and II) and is required for a Record of...
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Remote Demolition and Abatement Project – Resolute Bay, Nunavut
AEL completed a major abatement project of a flight services station in Canada’s Far North. A logistically challenging endeavour, AEL was proud to be part of a highly capable team to manage this work. The project was completed over 3 seasons due to the harsh climate of the region. Background: AEL was retained to manage...
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What Are Environmental Studies Courses Teaching?
At AEL Environment we constantly look to growing and expanding our knowledge and expertise. That’s why we are interested in the experiences of students pursuing a career related to Environmental Studies – after all, they may someday become our colleagues. We invite you to check out these articles that discuss trends pertaining to Environmental Studies. ...
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Overcoming Environmental Challenges At Distribution Sites
This article first appeared in Electricity Today Magazine. Since original source could not be located, we are unable to embed it here. Distribution Stations & What To Be Aware Of Distribution stations contain high voltage electrical environments that require a well-developed safety regime to address hazards including:  Specialized personal protective equipment Limits of approach Stray...
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Reducing Uncertainty in a Phase 2 ESA with the Triad Approach
The “hidden” and non-homogeneous nature of contamination at brownfield sites provides unique challenges to environmental site assessment (ESA) and clean-up work.  What Are The Implications of Brownfield Contamination? Brownfield contamination ignites potential for fatal “flaws” like missing impacted soil or groundwater at a previously determined “clean” site.  In order to effectively address the financial, environmental,...
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Mapping Takes Flight – UAV Services with AEL
Why Environmental Engineering Firms Are Using Drone-Based Mapping: AEL is excited to be utilizing drone-based mapping on some of our clients’ sites right now. This technology allows highly accurate, full-property topographic data to be captured and incorporated into the analysis of an environmental site.  How UAVs Are Used During Site Assessments: First, the UAV (unmanned...
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What Is Environmental Risk Assessment?
Despite their best efforts to ensure that their properties are clean and free from environmental impacts, landowners occasionally find (through a Phase II ESA) that their property has some kind of contamination in the soil or groundwater. Their property is no longer compliant with O. Reg. 153 and they have environmental liability that needs to...
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