Contaminated Site Services


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Contaminated Sites Assessment services are crucial to support business operations and decisions as many sites in the province have become contaminated through past industrial or commercial activities that introduced contaminants to the environment and associated regulatory implications could be costly and/or time consuming.

Common contaminants include the following:

  • Heavy metals such as copper, lead, arsenic, cadmium, mercury and zinc;
  • Petroleum hydrocarbons associated with gasoline and fuel oil;
  • Chlorophenols or creosote (inparticular polycyclic aromatic hydrocarbons – PAHs) associated with wood treatment operations
  • Polychlorinated biphenyls (PCBs) often occur at sites where electrical equipment was used;
  • Perchloroethylene (PERC) at dry cleaning sites.

Screening a site can be the first step in determining if it’s contaminated or not – this process involves the creation of a site profile and/or the completion of a Phase I Environmental Site Assessment. A site investigation is almost always required if the screening indicates there is a potential for contamination. Keystone Environmental’s professionals successfully complete assessments from the simplest Phase I Environmental Site Assessment (ESA) to the most complex detailed site investigations. If contamination is identified, risk assessment can focus on prioritizing remedial targets, or can often demonstrate that remediation is not required.

Keystone Environmental’s broad experience base enables us to recognize potential issues and to effectively apply professional judgement to complex circumstances. We are able to critically evaluate potential risks associated with issues and assist our clients in arriving at the business decisions most appropriate to their circumstances.

Environmental Site Assessments (ESA)
Whether a real estate transaction or purchase/divestiture of an industrial complex, the Environmental Site Assessment is relied on to identify potential risks and to support financing. Our dedicated team has the necessary expertise and experience to identify potential risks at small commercial properties to complex industrial facilities. Read More…..
Detailed Site Investigations
Detailed investigations provide the information needed to satisfy regulatory requirements. More importantly, they provide the information that enables consideration of remediation options and quantification of liability. Read More…..
Contaminant Remediation
The remediation strategy or approach must serve the site-specific needs of the client. That means for site development, the development form is a key factor in selecting an appropriate remediation strategy. Read More…..
Risk Assessment
While the risk assessment identifies unacceptable risks to human health and the ecology, it also needs to identify specific factors that are driving those unacceptable risks. That is the key focus for our risk assessment professionals. Read More…..