Key Takeaways
- The Pentagon quietly pushed back PFAS cleanup timelines at 178 military sites — including Montgomery County, PA — by an average of about a decade, with no public announcement.
- Montgomery County’s cleanup benchmark has been moved from 2030 to 2043, a 13-year delay, even though PFAS contamination there has already been confirmed at levels federal regulators consider unsafe over a lifetime of exposure.
- A CDC/ATSDR-funded study published in the August 2025 edition of Environmental International found that 99% of adults and children tested near Pennsylvania military bases had PFAS in their blood — with private wells registering contamination thousands of times over EPA limits.
- Residents affected by military-base PFAS contamination may have legal options worth pursuing, including lawsuits filed against PFAS foam manufacturers and the federal government.
- The gap between EPA drinking water standards (compliance now required by April 2031 for PFOA and PFOS) and the Pentagon’s revised 2043 cleanup timeline creates a critical window — one where waiting could mean more health damage and fewer legal options.
Something major just changed for Montgomery County residents — and almost no one noticed. Buried in a quietly updated Defense Department web page, a new schedule now shows the Pentagon pushing back PFAS cleanup timelines at hundreds of military sites across the country. For Montgomery County, Pennsylvania, that means a 13-year delay. The community was already waiting. Now it has to wait even longer.
Montgomery County’s PFAS Cleanup Just Got Pushed Back 13 Years
Montgomery County residents near the former Naval Air Station Joint Reserve Base (NASJRB) Willow Grove and Horsham Air Guard Station have been living with PFAS contamination for years. Groundwater in the area has been contaminated — most likely from decades of use of aqueous film-forming foam (AFFF), a firefighting chemical that contains PFAS compounds. And now, the federal government has quietly extended the timeline for addressing it.
A NOTUS analysis of updated Pentagon records shows the Defense Department moved Montgomery County’s cleanup benchmark from 2030 to 2043 — a full 13 years later. This is not a minor scheduling tweak. It is a significant setback for a community already living under the shadow of contaminated wells, documented health concerns, and unanswered questions. Montgomery County residents can learn more about local PFAS exposure and their legal options here.
What makes this especially troubling is that Montgomery County is one of just 15 confirmed sites nationwide where military PFAS contamination has already spread into nearby drinking water at levels federal regulators consider unsafe over a lifetime of exposure. The contamination is not theoretical — it is real, it is documented, and the people responsible for cleaning it up just pushed the deadline back by more than a decade.
The Pentagon’s Quiet Timeline Overhaul
178 Sites Delayed, 700+ Contaminated — All Without Public Announcement
The updated cleanup schedule was not announced at a press conference or sent to affected communities. It was swapped out on a Defense Department webpage — sometime between mid-May and early June — with no public notice. NOTUS researchers only discovered the change by comparing the new document to an archived version saved by the Wayback Machine. The changed timelines were dated September 30, 2025.
The scope of the delays is striking:
- 178 military sites now have delayed cleanup timelines
- Delays range from 1 to 20 years, averaging about a decade
- 11 sites originally on track to hit cleanup milestones in 2025 have now been pushed back between 5 and 19 years
- The delays affect communities in 42 states, Washington D.C., and Puerto Rico
Sen. Kirsten Gillibrand (D-New York) addressed the situation directly: “Communities contaminated by PFAS from nearby military bases have waited years for DOD to clean up the toxic chemicals that are harming their health. The Trump administration’s decision to quietly delay this remediation — in many cases by well over a decade — is reckless, dangerous, and unacceptable.” Lawmakers told NOTUS they were not informed about the updated schedules. The Defense Department did not respond to requests for comment.
How Researchers Uncovered the Hidden Updates
The updated document was not flagged or announced — it was simply swapped in. NOTUS confirmed the timeline changes by downloading the Pentagon’s previous schedule from the Wayback Machine’s internet archive and comparing it line by line with the new version. The discrepancies were significant and widespread.
The new document offers limited explanations for individual delays: additional testing and fieldwork, changes in the overall timeline, or vague references to prioritization of resources based on the relative risk to human health and the environment. None of those explanations were communicated directly to affected communities.
It is also worth noting what these timelines actually measure. The Pentagon’s published schedules reflect only the investigation and planning phase — figuring out what needs to be done and how to do it. There are currently no end dates set for actually finishing the cleanup at any of the 700+ contaminated sites nationwide.
What ‘Forever Chemicals’ Are Actually Doing to Local Bodies
99% of Adults and Children Tested Near PA Bases Had PFAS in Their Blood
A study funded by the CDC and the Agency for Toxic Substances and Disease Registry (ATSDR), published in the August 2025 edition of Environmental International, tested the blood of 5,286 adults and 710 children across eight states. The study focused on communities with known PFAS-contaminated drinking water. In Pennsylvania, 1,252 adults and 89 children were included — residents living near Horsham Air Guard Station and the former NASJRB Willow Grove.
The results were nearly universal: 99% of participants had detectable levels of PFAS in their blood. Four PFAS compounds — PFOS, PFOA, PFHxS, and PFNA — were found in the blood of almost every single adult and child tested. Adults near the Pennsylvania bases showed higher average levels of PFOA and PFHxS compared to the general U.S. population. Children had higher average levels of PFHxS.
About 30% of adults tested in Bucks and Montgomery Counties had total PFAS concentrations in their blood that fall within a range the National Academies of Sciences, Engineering, and Medicine recommends for medical follow-up testing. That is roughly 1 in 3 adults in the tested population.
Private Wells Thousands of Times Over EPA Limits
The contamination in the water supply near these bases is not marginal — it is extreme. Private wells in the Horsham, Warminster, and Warrington areas have tested for PFOS at levels as high as 5,000 parts per trillion (ppt). The EPA’s current maximum contaminant level for PFOS in drinking water is 4.0 ppt. That means some local wells tested at concentrations more than 1,200 times the EPA’s legally enforceable limit.
More than half of all drinking water wells tested near Pennsylvania military bases showed some level of PFAS contamination, based on independent study findings. For PFOA and PFOS specifically, the EPA has established a Maximum Contaminant Level Goal of zero, meaning the agency has determined there is no safe level of exposure for those two compounds.
As a point of comparison, Aqua Pennsylvania completed installation of a PFAS treatment system at its Perkiomen Woods well station in Montgomery County in August 2024, serving about 1,100 people in Upper Providence Township. That is a meaningful step — but it serves a small fraction of the population potentially affected by contamination tied to the military installations in the broader area.
Cancers, Hormones, Immunity: The Documented Health Toll
PFAS are called forever chemicals for a reason — they do not break down in the human body or the environment. Decades of research have built a detailed picture of what prolonged exposure actually does:
- Cancer risk: Increased risk of kidney cancer, testicular cancer, and prostate cancer
- Immune system: Reduced ability to respond to vaccines and compromised overall immune function
- Hormonal disruption: Interference with thyroid and other hormone systems
- Cardiovascular and metabolic effects: Elevated cholesterol, changes in liver enzymes, and insulin dysregulation
- Reproductive and developmental harm: Pregnancy-induced hypertension, preeclampsia, small decreases in birth weight, and developmental delays in children
- Kidney and liver disease: Documented links across multiple independent epidemiological reviews
Health outcomes data from the Pennsylvania ATSDR study — including cross-tabulated results on cholesterol, thyroid disease, metabolic syndrome, and blood pressure — were being prepared for public presentation and peer review as of mid-2025. The findings are still emerging, but the existing body of evidence is already substantial and deeply concerning.
Where Montgomery County Stands in the National Picture
Willow Grove and Horsham Air Guard: The Local Source
The two primary sources of PFAS contamination affecting Montgomery County are well-documented. The former Naval Air Station Joint Reserve Base Willow Grove and the active Horsham Air Guard Station both used AFFF — aqueous film-forming foam — for decades during firefighting training and emergency response. That foam contains PFAS, and it soaked into the ground, migrated into groundwater, and eventually reached private drinking water wells.
The Environmental Working Group (EWG) reports that over 700 U.S. military installations are contaminated with PFAS, exposing thousands of military personnel, their families, and civilians living nearby. Montgomery County sits squarely within this national problem — and is one of only 54 sites where the Pentagon has confirmed that forever chemicals are posing active health risks to nearby communities.
The Department of Defense estimated in 2021 that cleaning up PFAS contamination at military sites nationwide could cost up to $31 billion. Congress has appropriated roughly $1.2 billion annually for Pentagon environmental restoration in recent years — a fraction of what is ultimately needed.
A 2043 Deadline With No Actual Cleanup End Date Set
The 2043 date for Montgomery County does not mean the cleanup will be finished in 2043. That date represents only when the Pentagon expects to complete the planning and investigation phase — figuring out the full scope of the problem and designing a remediation response. There is currently no published end date for when the actual cleanup will be complete at any of the affected sites nationwide.
In Lucas County, Ohio, the cleanup timeline was delayed by 13 years — pushed to 2044. In Pima County, Arizona, the new date is 2047. In Michigan, Camp Grayling’s planning phase now extends to at least 2043, some 10 to 15 years longer than previously projected, while the PFAS plume there continues to migrate toward the town’s drinking water source and a river that feeds into Lake Huron. The pattern is consistent: communities waiting for answers are being asked to wait even longer, while contamination continues to spread underground.
Why the Delays Keep Growing
Plumes Spreading Faster Than Investigations
One of the more unsettling aspects of PFAS contamination is that it does not stay put. Underground plumes of contaminated groundwater migrate over time — and in many cases, they are moving faster than investigators can track them. As cleanup teams learn more about a site, they often discover the contamination has spread further than initially believed, requiring additional testing and revised timelines.
Former Pentagon official John Conger, who oversaw energy, installations, and environmental policy, put it plainly: “If that’s the thing that’s causing the delay, the implication is that there’s more widespread problems than they anticipated.” In Michigan, the mayor of Grayling wrote a letter to the federal government in March 2026 asking for urgent help — because a new well to contain the spread would cost at least $2 million, and even that would not stop the plume from continuing to flow into the city’s sewer system. Every year of delay means a larger footprint of contamination to eventually address — and a larger population potentially exposed.
Funding Cuts, Bureaucratic Hurdles, and Resource Constraints Driving Contractor Bottlenecks
In a December 2025 letter to New Hampshire’s congressional delegation, defense officials outlined the structural reasons delays keep accumulating:
- EPA’s updated PFAS standards (finalized in 2024) require more sensitive testing methods and additional investigation at many installations
- Laboratory analysis backlogs for specialized PFAS testing slow milestone completion
- Contractor capacity constraints — there are not enough specialized remediation firms to actively work all 700+ sites simultaneously
- Regulatory review cycles add time between investigation phases
- Funding limitations restrict how many sites can be actively remediated at once
- Project prioritization decisions mean lower-priority sites continue to wait, even when contamination levels are serious
Meanwhile, the Trump administration has moved to roll back Biden-era concentration limits on four PFAS compounds in drinking water and ease compliance timelines for two others — PFOS and PFOA. It remains unclear how those regulatory changes will interact with the Pentagon’s already-delayed cleanup schedules. Sen. Gary Peters and Rep. Debbie Dingell, both Michigan Democrats and members of the bipartisan Congressional PFAS Task Force, called the new delays unacceptable. Peters backed provisions in the Senate Armed Services Committee’s defense policy bill that would require interim remediation work at delayed sites, community notification when schedules change, and a Government Accountability Office review of PFAS cleanup contracting practices.
New EPA Standards Won’t Wait — Your Legal Options Shouldn’t Either
On April 10, 2024, the EPA finalized its National Primary Drinking Water Regulation, establishing legally enforceable Maximum Contaminant Levels (MCLs) for six types of PFAS in drinking water. For PFOA and PFOS, the EPA has since extended the compliance deadline for public water systems to April 2031, with an opt-in structure available for systems facing implementation challenges. That deadline stands in stark contrast to the Pentagon’s revised 2043 planning benchmark for Montgomery County.
That gap matters enormously. Federal regulators have now legally defined what contamination levels are unacceptable in public water. The military’s own data confirms that contamination near Willow Grove and Horsham far exceeded those levels. And the cleanup timeline just got pushed back 13 years. For residents of Montgomery County and the surrounding communities, this raises serious and urgent questions about health, accountability, and what options are available right now.
Lawsuits have already been filed against manufacturers of PFAS-containing firefighting foams, as well as against the government, on behalf of individuals who lived or worked near contaminated military bases and developed related health conditions. Those legal processes are underway — and the window for affected residents to pursue participation does not wait for the Pentagon’s cleanup schedule to catch up. Quinlan Law Group, serving as a Montgomery County PFAS attorney, is providing the kind of detailed, community-specific legal insight that residents in this area need to understand their situation and their rights.
For families and individuals in Montgomery County who want to understand what PFAS exposure near these bases may mean for their health and legal standing, Quinlan Law Group offers dedicated legal support for communities facing the consequences of toxic chemical exposure.
Quinlan Law Group
+1 717 724 7503
3425 Simpson Ferry Rd
Suite 100
Camp Hill
Pennsylvania
17011
United States
