Toxic Legacy: The Threat of PFAS Contamination from UK Military Bases

Per- and polyfluoroalkyl substances (PFAS), often referred to as “forever chemicals,” have emerged as one of the most persistent and hazardous pollutants in modern environmental health. Their resistance to degradation allows them to linger in soil, water, and the human body for decades, raising global alarm over their potential health impacts. In the United Kingdom, growing attention is being directed toward military bases such as RAF Marham, RM Chivenor, and AAC Middle Wallop, where historical PFAS use may be contaminating nearby drinking water sources. As investigations begin, communities and environmental experts alike are demanding accountability and urgent action.

What Are PFAS and Why They Matter

PFAS, or per- and polyfluoroalkyl substances, are a group of over 4,000 synthetic chemicals used since the 1940s in a wide array of consumer products, including non-stick cookware, water-resistant fabrics, and food packaging. Their chemical structure, characterized by strong carbon-fluorine bonds, makes them incredibly resistant to heat, oil, water, and degradation—earning them the nickname "forever chemicals."

While their industrial utility is undeniable, the environmental and health consequences are increasingly concerning. PFAS are known to accumulate in the human body over time, with exposure linked to a range of adverse health outcomes, including certain cancers, immune system suppression, hormonal disruptions, liver damage, and reproductive issues. Once released into the environment, PFAS persist in soil and water, infiltrating food chains and drinking water supplies.

In the UK, routine environmental monitoring has lagged behind other nations, leaving many regions potentially unaware of existing contamination. This is especially troubling in light of new studies suggesting widespread PFAS presence in surface and groundwater. The risk is particularly acute around areas of historic industrial or military activity—such as air bases—where PFAS-laden firefighting foams were heavily used. Understanding what PFAS are and why they matter is a critical first step in addressing their growing threat.

The Military Connection

Military installations around the world have long used firefighting foams containing PFAS, particularly aqueous film-forming foams (AFFF), due to their effectiveness in suppressing high-intensity fuel fires. In the UK, this practice was especially prevalent during training exercises and emergency responses at air force and army bases. Over time, repeated use of these foams has led to significant PFAS buildup in the surrounding soil and water.

Recent investigations have focused on three UK military sites—RAF Marham in Norfolk, RM Chivenor in Devon, and AAC Middle Wallop in Hampshire. These bases are situated near sensitive environments and, in some cases, within proximity to drinking water catchment areas. Concerns are mounting that PFAS from these sites may be leaching into local water supplies, posing a long-term threat to both environmental and public health.

The Ministry of Defence (MoD) has acknowledged the potential for contamination and initiated assessments at the bases. However, critics argue that these efforts are reactive rather than preventative, pointing to the lack of transparency and historical oversight. The situation underscores the pressing need for comprehensive PFAS monitoring, particularly in areas tied to defense operations, where the use of hazardous chemicals was often extensive and underregulated.

Current Investigations and Public Concerns

The UK Ministry of Defence has launched investigations into the potential contamination at RAF Marham, RM Chivenor, and AAC Middle Wallop, following pressure from environmental watchdogs and local residents. Initial assessments are underway to determine the extent of PFAS pollution, particularly in nearby groundwater and soil. However, the MoD has yet to publish detailed findings or a clear action plan for remediation, drawing criticism for its perceived lack of urgency.

Environmental groups such as CHEM Trust and Friends of the Earth have voiced serious concerns about the health implications for communities living near these bases. They warn that prolonged exposure to PFAS-contaminated water can have irreversible effects, especially on vulnerable populations such as children and pregnant women. Local councils have echoed these concerns, calling for more rigorous testing and public disclosure of risks.

Some residents have expressed frustration over the MoD’s communication, citing fears about the safety of their drinking water and the long-term environmental damage. Calls for independent testing and an overhaul of the UK’s PFAS regulation framework are growing louder. The ongoing investigations have not only spotlighted legacy pollution from military activities but also raised questions about institutional accountability in managing environmental health risks.

Comparative Global Response

Globally, countries like the United States and Australia have taken more aggressive stances on PFAS contamination, especially where military sites are involved. In the U.S., the Department of Defense has identified hundreds of military facilities with confirmed or suspected PFAS releases, prompting large-scale testing and remediation efforts. Some states have implemented strict drinking water standards, and legal actions against PFAS manufacturers have resulted in multimillion-dollar settlements.

In contrast, the UK’s approach has been slower and less coordinated. While the Environment Agency has begun mapping high-risk PFAS sites, many water utilities still lack the infrastructure to filter out these chemicals effectively. Moreover, the absence of legally binding national standards for PFAS in drinking water creates regulatory ambiguity.

This disparity highlights the need for the UK to not only accelerate investigations and clean-up efforts but also to adopt best practices from international counterparts who are confronting PFAS challenges with greater transparency, urgency, and technical capacity.

What’s Next: Policy and Accountability

The growing evidence of PFAS contamination near UK military bases underscores an urgent need for stronger regulatory oversight and clearer accountability mechanisms. Environmental advocates are calling for legally enforceable PFAS limits in drinking water and a national strategy for testing and remediation. Additionally, experts stress the importance of upgrading water treatment infrastructure to handle these persistent pollutants.

There is also a growing push to shift the financial burden of cleanup from taxpayers to the chemical industry. The principle of “polluter pays” is gaining traction, with campaigners urging the UK government to hold PFAS manufacturers and major users accountable for historical and ongoing contamination.

Equally important is the demand for transparency. Communities have a right to know the risks they face and the steps being taken to address them. Without timely and open communication, trust in public institutions erodes. Meaningful policy reform and corporate accountability are essential to mitigating PFAS's long-term impact.

PFAS Regulations in 2025: What EHS Professionals Need to Know

Per- and polyfluoroalkyl substances (PFAS) have become a critical focus for environmental, health, and safety (EHS) professionals worldwide. Often referred to as "forever chemicals," PFAS are a group of synthetic compounds used extensively in manufacturing, from nonstick cookware and waterproof textiles to firefighting foam. Their persistence in the environment and bioaccumulation in living organisms pose significant risks to both human health and ecosystems.

The year 2025 marks a pivotal shift in the regulatory landscape for PFAS, as governments worldwide, led by the U.S. Environmental Protection Agency (EPA), implement stricter controls on their production, use, and disposal. For EHS professionals, these changes signify not just compliance challenges but also opportunities to lead sustainability efforts within their organizations.

This article delves into the critical updates to PFAS regulations for 2025, offering insights and actionable strategies to help EHS managers prepare for and adapt to these landmark changes.

What Are PFAS?

Per- and polyfluoroalkyl substances (PFAS) represent a vast class of over 12,000 synthetic chemicals characterized by their unique carbon-fluorine bonds. This chemical structure gives PFAS their remarkable stability, making them resistant to heat, water, and oil. These properties have made PFAS indispensable in various industries, including electronics, aerospace, textiles, and food packaging.

However, the very durability that makes PFAS valuable also makes them harmful. Dubbed “forever chemicals,” PFAS do not naturally break down, leading to their accumulation in soil, water, and the human body. Scientific studies have linked prolonged PFAS exposure to severe health risks, including cancer, thyroid disorders, liver damage, and immune system suppression.

PFAS contamination has become a global environmental crisis. These chemicals are frequently detected in drinking water supplies and agricultural lands, causing widespread concern. Regulatory bodies are intensifying efforts to address these issues, recognizing the urgent need to limit PFAS exposure and mitigate their impacts. For EHS professionals, understanding the science and prevalence of PFAS is critical to navigating the evolving regulatory environment and safeguarding their organizations against potential liabilities.

Key Changes in 2025 Regulations

The regulatory framework for PFAS is set to tighten significantly in 2025, with the U.S. Environmental Protection Agency (EPA) spearheading efforts to address these persistent chemicals. Several new measures aim to curb PFAS production, minimize exposure, and enhance environmental and human health protections.

A major milestone is the EPA’s anticipated finalization of enforceable limits for PFAS in drinking water under the Safe Drinking Water Act. This regulation targets specific compounds like PFOA and PFOS, setting limits as low as 4 parts per trillion (ppt)—a groundbreaking move given the chemicals' widespread detection in water systems. Additionally, new rules will require industries to monitor and report PFAS releases into air, soil, and waterways, ensuring greater transparency and accountability.

The Toxic Substances Control Act (TSCA) is also undergoing revisions. Manufacturers must now disclose PFAS usage in their products and demonstrate efforts to phase out or find safer alternatives. For industries such as textiles, firefighting, and electronics, these updates necessitate significant changes in supply chain management and production processes.

Another critical update involves waste management. Landfills and wastewater treatment facilities are facing stricter guidelines for handling PFAS-laden materials. Compliance will require enhanced treatment technologies and monitoring protocols.

Globally, other countries are following suit. The European Union is advancing its plans to ban over 10,000 PFAS chemicals by 2025, creating additional challenges for multinational corporations. These synchronized efforts reflect growing recognition of PFAS as a global crisis.

For EHS professionals, staying ahead of these regulations is imperative. Understanding these changes enables proactive planning, minimizing risks of noncompliance and reputational damage while fostering sustainable practices.

Implications for EHS Professionals

The upcoming PFAS regulations pose significant challenges and responsibilities for EHS professionals, who play a central role in ensuring organizational compliance and mitigating risks. As the 2025 implementation deadline approaches, EHS managers must adapt their practices to meet heightened standards.

One immediate task is conducting a comprehensive inventory of PFAS usage within the organization. This involves identifying all products, processes, and waste streams that may contain these chemicals. Collaboration with suppliers to obtain detailed material disclosures is also essential, especially for industries heavily reliant on PFAS-containing materials, such as manufacturing, firefighting, and construction.

EHS teams will also need to establish robust monitoring systems to track PFAS emissions and ensure compliance with reporting requirements. This could include sampling water discharges, testing air emissions, and auditing waste disposal practices. Implementing advanced technologies for PFAS detection, such as high-resolution mass spectrometry, can enhance the accuracy of these efforts.

Training and communication are critical components of compliance. Employees at all levels must be educated about the new regulations, their implications, and best practices for managing PFAS-related risks. This ensures organizational alignment and fosters a culture of accountability.

Additionally, EHS managers must prepare for increased scrutiny from regulators and stakeholders. Transparent reporting, backed by data-driven assessments, will be key to maintaining trust and credibility.

By proactively addressing these challenges, EHS professionals not only safeguard their organizations against potential liabilities but also position themselves as leaders in environmental stewardship and sustainability.

Future Trends and Innovations

As PFAS regulations evolve, advancements in technology and policy offer promising pathways for mitigation and management. Emerging solutions, such as activated carbon filters, ion exchange resins, and advanced oxidation processes, are proving effective in reducing PFAS contamination in water systems. Meanwhile, industries are exploring biodegradable alternatives to PFAS, fostering innovation in materials science.

Policy developments are also gaining momentum on the global stage. Initiatives like the European Union’s sweeping restrictions on PFAS and collaborative international efforts signal a shift toward comprehensive, unified action. For EHS professionals, staying abreast of these trends is essential for long-term compliance and environmental leadership.