Early morning on a construction site usually looks the same everywhere. Excavators warming up. Coffee in paper cups. Someone unfolding blueprints in the back of a pickup truck.
At ClearGround Development, a fictional but very typical infrastructure developer, the team was preparing to build a new logistics center outside a fast-growing European city.
Permits? Approved.
Financing? Secured.
Construction timeline? Tight but realistic.
The excavators started digging. A few days later, the environmental consultant called with the routine soil test results:
PFAS.
Not something valuable. But a group of chemicals that regulators now take very seriously.
Across Europe and North America, construction companies are increasingly encountering PFAS contamination when digging foundations, building tunnels, or pumping groundwater. What once seemed like a niche environmental issue is quietly becoming a routine challenge for modern infrastructure projects.
PFAS (per- and polyfluoroalkyl substances) have been used since the 1940s and 1950s in thousands of industrial and consumer products.
They became popular because engineers loved their properties:
Industries used them everywhere:
For decades, nobody worried much about what happened to these chemicals after use. That has changed: Today, environmental monitoring is much more sophisticated. When developers run routine soil and groundwater tests before construction begins, PFAS contamination is often discovered.
The construction industry didn’t create most of these chemicals. But construction projects are often the moment when their presence becomes visible.
Where PFAS contamination often appears on construction sites:
Many construction projects uncover PFAS contamination linked to past industrial activities that may have occurred decades earlier.
When most people picture construction sites, they imagine concrete trucks, steel beams, and cranes. Water rarely comes to mind. But large construction projects often manage enormous volumes of water every day. Excavations for underground parking, basements, tunnels, or subway infrastructure often require groundwater pumping, also called construction dewatering.
Depending on the size of the project, construction sites can pump:
If that groundwater contains PFAS, it cannot simply be discharged into rivers or stormwater systems. It must be tested, documented, and often treated before release. For many developers, this becomes the first moment when PFAS turns from a theoretical environmental issue into a very practical operational problem.
How water moves through a construction site
Excavation Can Mobilize Old Contamination
Another challenge is that construction doesn’t just discover PFAS. It can also mobilize it. PFAS bind to soil particles but dissolve easily in water. When excavation disturbs soil layers that have been stable for decades, these chemicals can begin to move.
Groundwater flowing through disturbed soil can transport PFAS toward:
Because of this, regulators increasingly require PFAS monitoring during construction activities, not just during initial environmental assessments.
Construction companies now often need to manage contaminated groundwater in real time while projects are underway.
If ClearGround Development had built this same logistics center in the 1970s, none of this would have been an issue.
PFAS were widely used, environmental testing was limited, and regulations barely existed. Today the situation is very different. Across many countries, PFAS regulation is tightening rapidly.
Authorities increasingly require:
Threshold values for PFAS in water are also becoming stricter. This means that construction companies must now integrate environmental monitoring and water treatment into project planning much earlier than before.
Why This Matters for Infrastructure
As cities expand and infrastructure projects grow larger, construction sites increasingly interact with soil and groundwater systems that contain decades of environmental history.
Housing developments, transportation projects, industrial expansion, and urban redevelopment all involve excavation. Every time the ground is opened, there is a chance that previously hidden contamination will surface. PFAS is becoming one of the most common examples of this phenomenon.
For developers, engineers, and environmental consultants, managing these chemicals is becoming an essential part of modern construction planning.
PFAS is not a new discovery. But construction is often the moment when its presence becomes visible and operationally relevant. That is why now ist he time where we must learn how to manage it responsibly. The environmental legacy of past decades is big and as environmental monitoring expands and regulations evolve, construction projects will increasingly need to address PFAS in soil and water systems.
The good news is that the industry is no longer starting from scratch. Technologies for monitoring, removing and managing PFAS already exist and are improving rapidly.
At instrAction, we work on solutions that help construction projects handle PFAS challenges in real-world conditions. From selective absorber technologies to mobile treatment systems that can be deployed directly on site, the goal is simple: treat contaminated water efficiently and keep PFAS out of the environment.
If PFAS has appeared on your construction site or in your project planning, now is the right time to act. Feel free to reach out to our team to learn more about available solutions, including our mobile treatment unit designed for on-site water purification.
Because building the infrastructure of tomorrow should not come at the cost of contaminating the water systems we all depend on.