PFAS Compliance Strategy Amid Changing Drinking Water Regulations

PFAS Regulations May Change, but Long-Term Risk Remains

The EPA’s proposed changes to the national PFAS drinking water standards have generated discussion across the environmental, utility, and industrial sectors. Organizations are evaluating what these potential changes may mean for long-term compliance planning, infrastructure investment, and environmental liability management.

While the proposed changes are significant, they do not eliminate PFAS compliance obligations. Instead, they may create a more complex regulatory environment in which federal policy, state requirements, defense priorities, and public expectations continue to shape PFAS management for years to come.

The EPA’s proposed changes would maintain and enforce drinking water restrictions for PFOA and PFOS, extend compliance deadlines for certain water systems to 2031, and reconsider federal drinking water requirements for four additional PFAS compounds.

Rather than signaling a slowdown in PFAS activity, the proposed changes may accelerate the transition toward a more state-driven, and risk-based compliance landscape.

For some utilities, the additional time may support more strategic planning, funding coordination, and phased implementation. However, for many organizations, the practical impact may be more limited than initial headlines suggest.

States continue advancing stringent PFAS requirements. Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) liability remains in place. Department of Defense (DoD) cleanup programs continue to accelerate. Public expectations surrounding drinking water quality and environmental stewardship are not declining.

In practical terms, this is not a signal to pause PFAS planning efforts.

State PFAS Regulations Continue Expanding

One of the largest misconceptions surrounding the current discussion is the assumption that a federal extension could reduce near-term urgency, allowing municipalities and private commercial businesses to postpone planned PFAS compliance projects. In practice, that is not the case.

Many states already maintain enforceable PFAS standards, groundwater criteria, discharge limitations, product bans, or monitoring requirements. In several regions, utilities and industrial operators are already working under obligations that exist independently of the EPA’s federal timeline.

As a result, the operational impact of federal changes may vary significantly by geography and regulatory jurisdiction.

For utilities, manufacturers, airports, municipalities, and industrial operators, the key questions are focused on long-term strategy rather than minimum compliance thresholds:

This level of complexity requires more than equipment procurement or regulatory interpretation. Organizations need integrated technical, operational, and compliance support to navigate long-term PFAS management decisions. Without a coordinated strategy, organizations may make inconsistent compliance decisions across states, increasing the risk of duplicative spending or delayed action.

DoD PFAS Cleanup Programs Continue Accelerating

Even amid regulatory uncertainty, one sector remains unmistakably committed to PFAS investigation and remediation: the DoD. The DoD has remained at the forefront of PFAS investigation, remediation, and aqueous film-forming foam (AFFF) replacement efforts for years, and current funding discussions indicate that commitment is continuing.

Recent FY2026 Senate appropriations discussions included approximately $135 million in proposed PFAS-related increases across Army, Navy, Air Force, and Air National Guard environmental restoration accounts. Final enacted funding levels remained elevated overall.

At the same time, the DoD continues advancing long-term environmental restoration programs tied to military installations and Formerly Used Defense Sites (FUDS).

These programs are operationally critical, technically complex, and long-cycle by design. Cleanup obligations are not slowing because of potential drinking water compliance extensions, and neither are the associated liabilities.

Additional policy and regulatory drivers continue reinforcing long-term PFAS management demands nationwide, including:

While portions of drinking water regulations evolve, the broader PFAS environmental liability landscape continues to expand.

Utilities Continue Facing Critical PFAS Infrastructure Decisions

For drinking water providers, additional compliance time may create opportunities to better sequence capital projects, evaluate treatment technologies, pursue funding opportunities, and coordinate long-term infrastructure improvements.

Utilities that benefit most from additional regulatory runway will be those that use the time strategically rather than waiting for complete certainty.

Sampling programs still need to move forward. Infrastructure systems still require evaluation. Communities continue expecting transparency and accountability. Treatment technologies still require pilot testing, procurement, construction, and integration.

For many utilities, the larger question is no longer “How do we comply?” but rather:

How do we build a durable, defensible, and financially practical long-term PFAS strategy?

PFAS Management is Expanding Beyond Compliance

PFAS is no longer solely a regulatory issue. It has become a business risk, a public trust issue, an infrastructure planning issue, and a long-term operational resilience issue.

Organizations across sectors recognize that even when regulations remain uncertain, stakeholders, including investors, insurers, regulators, and communities, continue expecting proactive environmental stewardship.

As a result, many organizations are shifting from reactive compliance toward broader PFAS risk management strategies that include:

The next phase of PFAS management will likely become more state-driven, litigation-aware, funding-conscious, and implementation-focused.

How APTIM Supports Long-Term PFAS Strategy & Compliance

At APTIM, we recognize that regulatory change creates uncertainty, but it also reinforces the need for experienced, technically grounded partners capable of navigating shifting requirements while maintaining focus on long-term objectives.

Organizations that successfully navigate this environment must understand both the regulatory landscape and the operational realities of implementation.

APTIM supports clients across the full PFAS management lifecycle, including:

This integrated approach is critical because PFAS challenges rarely exist in isolation. Regulatory requirements, funding constraints, technical feasibility, operational impacts, infrastructure needs, and public expectations are converging simultaneously.

Clients require more than regulatory interpretations. They need experienced partners capable of translating regulatory changes into operational, technical, and financial decisions while supporting implementation in the field.

APTIM’s federal program experience also provides valuable insight as PFAS intersects with defense, infrastructure, environmental restoration, and public funding priorities.

Building Smarter PFAS Strategies Moving Forward

Compliance timelines may shift. Regulatory standards may change. Federal priorities may continue adapting. However, the underlying drivers, including environmental liability, public health concerns, state regulation, infrastructure investment, and long-term remediation obligations, remain firmly in place.

Organizations treating this moment as an opportunity to pause may ultimately face greater long-term risk. Organizations using this time to develop smarter, phased, risk-based PFAS management strategies will be significantly better positioned regardless of where federal standards ultimately settle.

That is the approach we help clients implement every day. APTIM’s Remediation & Technical Solutions team can evaluate your PFAS compliance strategy, identify long-term risk drivers, and develop a phased plan for regulatory readiness, treatment evaluation, and implementation.

PFAS Remediation & Technical Solutions Team

Published May 2026