Safe Drinking Water Act (SDWA)

Illinois EPA Reaffirms State PFAS Drinking Water Standards and Deadlines After Federal Rollback

Illinois EPA has confirmed that Illinois’ PFAS drinking water and groundwater standards remain in force, and that state PFAS Maximum Contaminant Levels and monitoring obligations for community water systems are unaffected by the Trump Administration’s rollback of federal PFAS drinking water requirements. For utilities and PFAS‑exposed businesses this means Illinois compliance planning must still assume initial PFAS monitoring by April 2027 and full MCL compliance by April 2029, preserving the original state timeline and risk profile regardless of changes at federal level.

25 May 2026, 15:48epa.illinois.govUnited States

US EPA Proposes PFAS Drinking-Water Rule Changes and Allocates $39.2 Million to Pennsylvania

In May 2026, US EPA proposed adjustments to its PFAS drinking-water rules, including an optional extension of PFOA/PFOS compliance deadlines to 2031 and a procedural review of hazard-index PFAS standards, while announcing $39.2 million in new PFAS-related drinking-water funding for Pennsylvania. These moves could delay compliance obligations for some public water systems, reshape requirements for additional PFAS, and give Pennsylvania utilities new resources for testing, treatment and infrastructure planning as national PFAS policy continues to evolve.

24 May 2026, 21:21epa.govUnited States

US EPA Announces $128.6 Million To Reduce Lead In Drinking Water In Indiana

In May 2026, the US Environmental Protection Agency announced $128.6 million in Drinking Water State Revolving Fund financing for Indiana, as part of a $921.6 million Region 5 package to accelerate lead service line replacement and reduce lead in drinking water. This funding does not change legal standards but materially strengthens implementation of existing Safe Drinking Water Act lead requirements, signalling sustained federal support for utilities to inventory and replace lead pipes and manage related compliance and public health risks.

23 May 2026, 20:04epa.govUnited States

US EPA Allocates $40.5 Million EC-SDC PFAS Drinking Water Funding To New York

In May 2026 the US Environmental Protection Agency allocated $40.5 million in FY 2026 Emerging Contaminants in Small or Disadvantaged Communities grant funding to New York to help address PFAS and other contaminants in drinking water. This federal investment strengthens water quality and infrastructure resilience for small and disadvantaged New York communities and underscores continued national focus on PFAS risk management under the Safe Drinking Water Act.

23 May 2026, 11:17epa.govUnited States

US EPA Proposes PFAS Drinking Water Rule Changes and $20 Million Arizona Cleanup Grants

In May 2026 the US EPA proposed changes to its PFAS drinking water regulation that would extend compliance deadlines for PFOA and PFOS while rescinding current MCL and hazard-index provisions for four other PFAS, alongside new federal funding allocations including about $20 million for Arizona to address PFAS and other emerging contaminants in small and disadvantaged communities. These proposals signal that the 2024 PFAS NPDWR may be procedurally adjusted and compliance timelines stretched, so water utilities and PFAS-intensive industries should reassess risk, investment timing, and use of emerging-contaminant grants to finance treatment infrastructure and manage long-term regulatory exposure.

23 May 2026, 11:17epa.govUnited States

Washington DOH Proposes Lead and Copper Rule Improvements for Group A Public Water Systems

In May 2026, Washington’s Department of Health proposed amendments to chapter 246-290 WAC to incorporate EPA’s Lead and Copper Rule Improvements and PFAS drinking water standards for Group A public water systems, with public comments due 23 June 2026. If adopted, utilities will face a lower lead action level, new PFAS maximum contaminant level obligations, and more prescriptive monitoring, reporting, and service line inventory requirements, requiring forward planning on sampling, capital upgrades, and customer communication.

23 May 2026, 09:14doh.wa.govUnited States

US EPA Region 8 Announces $27,456,000 for Lead Service Line Replacement in Montana

In May 2026, US EPA Region 8 awarded $27,456,000 from the Drinking Water State Revolving Fund to Montana to identify and replace lead service lines in public drinking water systems, as part of a $3 billion national package to cut lead exposure in drinking water. This funding signals continued federal backing for utilities planning major lead service line replacement projects and supports small and rural systems that must inventory legacy pipes and meet Safe Drinking Water Act obligations.

22 May 2026, 18:50epa.govUnited States

US EPA Announces $2.9 Billion for States to Replace Lead Service Lines in Drinking Water

US EPA has allocated nearly $2.9 billion in FY2026 Drinking Water State Revolving Fund financing, plus $18 million in reallocated funds, to help US states identify and replace lead service lines and reduce lead exposure in drinking water. For water utilities and state drinking water programmes this does not change underlying Safe Drinking Water Act requirements, but it signals sustained federal priority and significant new capital for planning and accelerating lead service line replacement projects.

22 May 2026, 18:50epa.govUnited States

US EPA Proposes Federal Exemption to Extend PFOA and PFOS Drinking-Water Compliance Deadlines

EPA has proposed a federal exemption-by-rule that would let eligible public water systems in non-primacy jurisdictions extend compliance with the PFOA and PFOS drinking-water maximum contaminant levels from April 2029 to April 2031, subject to specified eligibility criteria and interim control measures. If finalised, this would give utilities more time to finance and implement PFAS treatment or alternative measures but would delay full risk reduction, so compliance teams should track the July 2026 comment and hearing milestones and plan around potential exemption requests, control measures, and revised 2031 deadlines.

21 May 2026, 15:51federalregister.govUnited States

US Lawmakers Urge EPA To Reconsider Proposed Rollback of PFAS Drinking-Water Standards

US Representatives Debbie Dingell and Brian Fitzpatrick have issued a bipartisan letter opposing EPA’s proposal to roll back the 2024 PFAS drinking-water standards by dropping limits for four PFAS and delaying compliance for others. If implemented, the rollback could weaken national PFAS protections and extend timelines for utilities and affected industries, so companies should watch for changes to the PFAS NPDWR while continuing to plan against the existing 2029 compliance deadline.

21 May 2026, 06:35debbiedingell.house.govUnited States

US EPA Announces $9.4 Million EC-SDC Funding for Wyoming PFAS Drinking Water Projects

In May 2026, the US Environmental Protection Agency allocated about $9.4 million in FY 2026 Emerging Contaminants – Small or Disadvantaged Communities grant funding to Wyoming to help small and disadvantaged communities tackle PFAS and other emerging contaminants in drinking water. This federal investment signals sustained support for PFAS compliance projects in Wyoming’s water sector, enabling utilities and private well owners to expand testing and treatment ahead of tightening Safe Drinking Water Act drinking water standards.

21 May 2026, 06:34epa.govUnited States

EPA Announces $9.4 Million for South Dakota to Address PFAS in Drinking Water

In May 2026, EPA Region 8 announced $9.4 million in EC-SDC grant funding for South Dakota to help small and disadvantaged communities reduce PFAS and other emerging contaminants in drinking water. This award deepens federal support for PFAS treatment infrastructure, so South Dakota water systems and state planners should align projects and financing strategies with emerging national PFAS standards and related grant and loan programmes.

21 May 2026, 06:34content.govdelivery.comUnited States

EPA Announces $9.4 Million for Utah to Address PFAS in Drinking Water

EPA Region 8 has announced $9.4 million in EC-SDC grant funding for Utah to address PFAS and other emerging contaminants in drinking water, alongside the PFAS OUT initiative targeting PFOA and PFOS in small and disadvantaged systems. This deepens federal support for PFAS compliance, signalling sustained investment and technical assistance that will shape utilities’ treatment planning, financing choices, and readiness for current and proposed PFAS drinking water standards.

21 May 2026, 06:34content.govdelivery.comUnited States

US EPA Region 8 Announces $9.4 Million PFAS Drinking Water Funding for Montana

In May 2026, US EPA Region 8 announced $9.4 million in EC-SDC grant funding for Montana to help small and disadvantaged communities test for, plan around, and build infrastructure to address PFAS and other emerging drinking-water contaminants. This targeted funding, alongside the national EC-SDC and WIFIA finance programmes and the PFAS OUT technical assistance initiative, strengthens water systems’ capacity to meet current and forthcoming PFAS drinking-water standards and reduces long-term exposure risks.

21 May 2026, 06:34content.govdelivery.comUnited States

US EPA Proposes Rescinding Drinking Water Determinations and MCLs for Four PFAS (PFHxS, PFNA, GenX, PFBS Mixtures)

US EPA has proposed to rescind Safe Drinking Water Act regulatory determinations and associated PFAS drinking water standards for PFHxS, PFNA, HFPO‑DA (GenX) and a PFBS-containing hazard-index mixture in the 2024 PFAS National Primary Drinking Water Regulations, with comments due by 20 July 2026. If finalised, this deregulatory step would halt planned MCL, monitoring and treatment obligations for these four PFAS while leaving PFOA and PFOS standards unchanged, reducing compliance costs for public water systems but also rolling back expected health protections and signalling EPA’s intent to re-sequence future PFAS regulation under SDWA.

20 May 2026, 19:56federalregister.govUnited States

US EPA Proposes PFAS Drinking Water Compliance Extension and Rescission Rules Under the Safe Drinking Water Act

In May 2026, the US Environmental Protection Agency proposed two PFAS drinking water rules under the Safe Drinking Water Act that would let eligible water systems opt into extending PFOA and PFOS Maximum Contaminant Level compliance out to 2031 and rescind procedurally vulnerable 2024 PFAS NPDWR provisions for PFHxS, PFNA, HFPO-DA and PFBS mixtures, alongside 60-day public comment periods and a 7 July 2026 hearing. This recalibrates rather than rolls back PFAS regulation, preserving core standards while offering constrained utilities more implementation flexibility and signalling fresh, potentially tighter SDWA rulemaking for the other PFAS, so water providers and PFAS-exposed supply chains should plan for extended timelines, interim mitigation measures, and continued investment in treatment and monitoring.

19 May 2026, 08:12epa.govUnited States

US Consultancy Analyses EPA UCMR5 PFAS Data On Public Water System Exceedances

A consultancy has used EPA's January 2026 UCMR 5 PFAS monitoring data to quantify how many US public water systems already appear to exceed the new PFAS drinking water standards and how this depends on EPA's summary methodology. The results suggest more and different systems may face PFAS treatment obligations than EPA initially projected, so utilities and regulators should base planning and any future PFAS rule refinements on the nearly complete UCMR dataset rather than earlier modelling assumptions.

18 May 2026, 08:15epa.govUnited States

California SB 1313: PFAS Drinking Water Funding Bill Held in Senate Appropriations

California’s SB 1313 would allow the state’s Safe Drinking Water State Revolving Fund to be used for projects that address PFAS contamination in drinking (including recycled) water, but as of mid-May 2026 the bill remains held in the Senate Appropriations Committee. If ultimately enacted, this would expand financing options for public water systems planning PFAS treatment infrastructure and signal continued state pressure to remediate PFAS in public drinking water supplies.

16 May 2026, 08:57leginfo.legislature.ca.govUnited States

Minnesota Department of Health Publishes 2025 Drinking Water Annual Report Highlighting PFAS Testing and Lead Service Line Goals

Minnesota’s health department has released its 2025 Drinking Water Annual Report, confirming high compliance with federal standards while massively expanding PFAS monitoring and committing $243 million to replace an estimated 90,000 lead service lines by 2033. This underscores tightening federal and state expectations around PFAS and lead in drinking water, signalling upcoming treatment, infrastructure, and cybersecurity investments for public water systems and potential knock-on impacts for industrial users relying on Minnesota’s water supplies.

15 May 2026, 16:12health.state.mn.usUnited States

Hawaii Department of Health Confirms PFBA Detection in Haleakalā National Park Water System

In May 2026, the Hawaii Department of Health announced low-level detection of the PFAS compound PFBA in water samples from the Haleakalā National Park public water system, confirming contamination but at concentrations well below the state’s action level and with no immediate public health concern. For compliance and risk planning, this statutory notice under Hawaii’s safe drinking water law flags a PFAS presence in a sensitive national park water supply, reinforcing the need for continued monitoring and preparedness for potential future tightening of drinking water standards.

15 May 2026, 13:34health.hawaii.govUnited States