Cheyenne Air National Guard Base PFAS Lawsuit [2025 Update]

Dangerous Levels of PFAS Detected at Cheyenne Air National Guard Base

Cheyenne Air National Guard Base has been identified as a site of significant PFAS contamination, raising major concerns for military personnel, civilian workers, and surrounding communities.

PFAS chemicals, known as “forever chemicals” for their persistence in the environment and human body, were discovered at levels far exceeding safety limits.

Published by the Environmental Working Group (EWG), PFAS chemicals were detected at the following levels in groundwater at Cheyenne Air National Guard Base in 2018:

• PFOS: 89,000 ppt
• PFOA: 8,500 ppt
• PFOS + PFOA (combined): 94,400 ppt
• PFHxS: 22,000 ppt
• PFBS: 3,000 ppt
• PFHpA: 2,900 ppt
• PFNA: 140 ppt

These concentrations are significantly above the Environmental Protection Agency’s 2024 Maximum Contaminant Level (MCL) for PFOS and PFOA, which is set at 4 ppt, raising concerns about long-term health risks and environmental contamination.

Sources of PFAS Exposure at Cheyenne Air National Guard Base

The primary source of PFAS contamination at Cheyenne Air National Guard Base is the long-term use of aqueous film forming foam (AFFF), a firefighting foam heavily relied upon for extinguishing high-intensity fuel fires during military training exercises and emergency responses.

AFFF contains various polyfluoroalkyl substances (PFAS chemicals), including PFOS and PFOA, which are known as forever chemicals due to their resistance to natural breakdown.

Repeated AFFF use at this air national guard base has led to confirmed PFAS contamination, allowing these toxic substances to seep into the soil, groundwater, and eventually the drinking water supply.

In addition to AFFF, PFAS exposure may result from runoff from contaminated military sites, disposal practices, fire suppression systems, and the use of PFAS-containing materials and firefighting equipment.

The Environmental Working Group and other federal and state agencies have documented elevated PFAS levels in drinking water and groundwater at multiple military installations, including Cheyenne Air National Guard Base and nearby Warren Air Force Base and Tinker Air Force Base.

Due to the chemical persistence of PFAS, the groundwater contamination continues to worsen, threatening drinking water supplies both on base and in surrounding communities.

This significant PFAS contamination represents a major public health concern, as it affects private wells, public water systems, and off-base water supplies.

Without effective cleanup efforts, these hazardous substances will continue to pollute the environment and jeopardize the health of military personnel, civilian workers, and nearby residents.

Who May Be Exposed to PFAS at Cheyenne Air National Guard Base

Those at highest risk of PFAS exposure at Cheyenne Air National Guard Base include military service members, air national guard personnel, contractors, and civilian workers stationed at or working near the base—particularly during years when AFFF was routinely used in firefighting drills and fuel fire training exercises.

Individuals who lived or worked at the base may have consumed PFAS contaminated water from on-base drinking water systems or were exposed through occupational activities involving PFAS-containing firefighting foams.

Additionally, families residing on or near the installation—especially children, pregnant women, and other vulnerable populations—may face increased health risks due to the migration of PFAS from contaminated groundwater into private drinking water wells and local water supplies.

Communities surrounding the base, including those near other potentially contaminated sites like Cannon Air Force Base, Sawyer Air Force Base, and Eaker Air Force Base, may also face similar exposure risks.

Because PFAS levels at Cheyenne Air National Guard Base exceed the Environmental Protection Agency’s health advisory limits, individuals exposed to PFAS chemicals may suffer serious health consequences, such as thyroid disease, testicular cancer, developmental delays, immune system dysfunction, and other long-term health issues.

The widespread contamination underscores the urgent need for accountability, cleanup, and protections for those affected.

Do You Qualify for the Cheyenne Air National Guard Base PFAS Lawsuit?

You may qualify for a PFAS lawsuit related to Cheyenne Air National Guard Base PFAS contamination if you lived, worked, or served on or near the base and were subsequently diagnosed with a health condition linked to PFAS exposure.

Individuals potentially eligible include military service members, civilian workers, and residents who consumed or used contaminated drinking water from on-base or off-base water supplies impacted by forever chemicals such as PFOS and PFOA.

Qualifying health conditions may include thyroid disease, testicular cancer, kidney disease, immune disorders, and other illnesses associated with elevated PFAS levels.

Eligibility may also extend to family members of service members who were exposed to PFAS-contaminated water, especially those with long-term residency in the area or access to private drinking water wells.

Each case is evaluated on a case-by-case basis, and consulting with an experienced PFAS attorney can help determine whether your situation meets the legal requirements for filing a claim.

Gathering Evidence for a PFAS Lawsuit

To strengthen your case in the Cheyenne Air National Guard Base PFAS lawsuit, it’s essential to gather comprehensive evidence that links your PFAS exposure to your current health condition.

Start by documenting your residence, employment, or military service at or near the base during periods when PFAS contamination was likely.

Military records, housing leases, employment documents, and base access credentials can all serve as critical proof of exposure.

Obtain medical records that detail any diagnoses related to PFAS-linked health issues such as thyroid disorders, immune system dysfunction, or certain types of cancer.

If available, include PFAS water testing results, EPA reports, or findings from the Environmental Working Group that confirm high PFAS concentrations in your area.

An experienced environmental or personal injury lawyer can assist in compiling this evidence, working with medical and scientific experts, and guiding you through the legal process to seek the compensation you deserve for health problems linked to PFAS chemicals.

TorHoerman Law: Investigating the Cheyenne Air National Guard Base PFAS Lawsuit

TorHoerman Law is actively investigating claims related to PFAS contamination at Cheyenne Air National Guard Base, where dangerous levels of PFOS, PFOA, and other toxic chemicals have been detected in groundwater.

With extensive experience handling environmental and toxic exposure litigation, our firm is committed to helping military service members, civilian workers, and surrounding community members pursue justice for PFAS-related health problems.

We understand the devastating impact that forever chemicals can have on public health and are prepared to gather evidence, consult with scientific experts, and guide victims through the legal process.

If you or a loved one were exposed to PFAS-contaminated water at or near Cheyenne Air National Guard Base and have experienced adverse health effects such as thyroid disease, cancer, or immune system issues, you may be eligible to file a lawsuit.

TorHoerman Law offers free consultations to help determine your eligibility and explain your legal options.

Use the chat feature on this page to find out if you qualify for a PFAS contamination claim instantly.

Our team is dedicated to holding responsible parties accountable and securing fair compensation for those harmed by PFAS exposure.