Category: Soil Testing
Site Screening – Using On-Site Soil Testing To Reducing Uncertainty in Phase II ESAs
When completing a Phase II Environmental Site Assessment (ESA), proper site characterization is essential to the investigation. It is important to gain a clear understanding of site conditions in order for the Qualified Person (QP) to give an accurate report at the conclusion of the ESA. On-site screening is one strategy that strengthens the investigation...
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Using Technology to Maximize Soil Assessment Efficiency
On-site testing is at the forefront of technologies used to reduce uncertainty in Phase II Environmental Site Assessments (ESAs).   As part of the ESA process, areas of environmental concern are identified, as well as which contaminants are most likely to be found there during soil assessment. These “contaminants of concern” provide focus to potential...
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Remediation Approach: Screening and On-Site Testing at Remote Sites
 April 9th, 2014  AEL environment On remote sites, like those in Canada’s Far North, the cost of traditional remediation can be astronomical. Because these sites are often beyond the access of landfills, soil transport and disposal can make traditional “dig-and-dump” remediation too expensive to pursue. For this reason, AEL believes that remote sites are often...
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Remedial Approach Selection – Giving a Thoughtful Evaluation of Strategies
Not every remedial approach will work on every site. Certainly not every remedial approach is ideally suited for every site. AEL takes a careful approach to evaluating and selecting remedial strategies that are matched to the client’s specific goals for the site. When a Phase II ESA finds impacts above the allowable limit on a...
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Understanding A CSM – Using On-Site Testing to Strategically Fill Data Gaps
The Triad approach is a set of three strategies, supported by the US EPA, which is widely recognized as the proven modern standard for characterizing and remediating impacted sites. While Canadian regulation does not specifically rely on the Triad approach (although it may introduce similar regulation at some point), Canadian best practices do favour the...
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Developing a Conceptual Site Model- Contaminant Pathways and Receptors
When developing a conceptual site model (CSM), the focus moves from the initial review of background information to the identification of potential contaminants of concern. Investigation into the site’s historical background should identify past site owners and operators, which would identify contaminants likely to be present at the site. For example, if past operations on...
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Changing Course in a Phase II ESA
As an environmental consulting team, AEL understands that even the best laid plans may need to change during a site investigation. Recently, we began investigating a site near Toronto and found evidence of a buried tank that had not been evident in the Phase I ESA. The team had to change the areas of focus,...
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Real-Time Results with the XRF
When accurate real time screening results are collected during an environmental site investigation or remediation, the team gains an invaluable tool for directing field work. The use of on-site testing ensures that adequate information is collected in order to make confident decisions about site conditions and next steps. On-site soil testing tools such as ultraviolet...
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What Happens During a Soil Vapour Study ?
Recently, AEL’s team completed a soil vapour study at a site in Toronto, Ontario. Check out some highlights from the day. A soil vapour study involves an analyses of any volatile compounds being released by the soil, which can be indicative of contamination. Briefing the team on an early Saturday morning- the work had to...
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Clean Fill Stockpile Sampling
AEL environment is routinely tasked with finding clean fill for our existing projects. While fill dumps and transfer stations exist, standards developed by the Ministry of the Environment and Climate Change (MOECC) require that soil transferred from one site to another must meet the receiving Site standards to be considered acceptable “clean” fill. In May...
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