Most Common Contaminants Found in Prairie Brownfield Sites (and How to Remediate Them)

Did you know that redeveloping a brownfield site without proper testing can lead to costly delays and health risks? Across the Prairies, many former industrial or commercial properties hide contaminants that pose serious environmental challenges. Before starting any project, understanding what you’re dealing with and how to fix it, as it’s essential.

In this blog, we’ll outline the most common contaminants found in Prairie brownfield sites and share practical steps for site remediation. By the end, you’ll know what to look for and how ParklandGEO can help you move forward safely.

Understanding Brownfield Sites: Why They Matter for Your Next Project

Brownfield sites are properties where past industrial or commercial activities have left behind potential pollutants. These contaminants can affect soil, groundwater, surface water and even air quality. Redeveloping these sites without proper remediation can lead to environmental hazards and regulatory issues.

Most Common Contaminants Found in Prairie Brownfield Sites

1. Petroleum Hydrocarbons

Former gas stations, rail yards, and industrial facilities often leave petroleum hydrocarbons in the soil. These substances can seep into groundwater, creating long-term environmental risks.

Why it matters: Hydrocarbons are toxic and flammable, making them dangerous for both human health and construction projects.

2. Heavy Metals

Lead, arsenic, and mercury are frequently found in sites that once housed manufacturing or agricultural operations. These metals can persist in soil for decades.

Impact: Heavy metals can contaminate crops and water sources, posing health risks to communities.

3. Polycyclic Aromatic Hydrocarbons (PAHs)

PAHs are common in areas with historical coal storage or combustion processes. They bind strongly to soil and are known carcinogens.

Concern: Exposure to PAHs can lead to serious health issues, making remediation critical before redevelopment.

4. Volatile Organic Compounds (VOCs)

VOCs often originate from solvents, paints, industrial chemicals and older fuel products. They can migrate through soil and vaporize into buildings, creating indoor air quality problems.

Risk: VOCs are linked to respiratory issues and other health concerns.

How to Address Contamination: Site Remediation Steps

Site remediation is the process of removing or neutralizing contaminants to make land safe for use. Common strategies include:

• Site Assessment: Comprehensive testing of soil, groundwater, surface water, air and/or construction materials.

  
  

• Excavation and Removal: Physically removing contaminated media.

  
  

• In-Situ Treatment: Using chemical or biological methods to break down pollutants in-place.

  
  

• Groundwater Treatment: Pumping and filtering contaminated water.

ParklandGEO specializes in environmental engineering and site remediation across the Prairies. Our team ensures compliance with Canadian environmental standards while delivering cost-effective solutions.

Community & Sustainability Focus

Redeveloping a brownfield site isn’t just about unlocking land, it’s about creating safer, healthier communities. By addressing contaminants like petroleum hydrocarbons, heavy metals, PAHs, and VOCs, you protect future generations and ensure compliance with environmental regulations.

ParklandGEO brings decades of experience in site remediation across the Prairies. Ready to transform your property responsibly? Contact us today for a detailed site assessment and remediation plan. Start your project with confidence.