If you believe your water has been contaminated with PFAS, understanding testing methods and evidence requirements is crucial for a successful legal claim. Learn how Michigan’s top personal injury attorneys help establish your case.
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Proving PFAS in Drinking Water: Testing Standards and Legal Evidence

When harmful PFAS chemicals contaminate your drinking water, the health consequences can be severe. These “forever chemicals” have been linked to serious conditions including cancer, immune system damage, and developmental issues. But proving PFAS contamination in a legal context requires specific evidence and expertise. At the Law Offices of Henry Hanflik, we’ve helped Michigan families secure justice for environmental contamination since 1972. Here’s what you need to know about establishing a drinking water contamination claim.

Understanding PFAS Testing Standards

PFAS testing must follow strict scientific protocols to be valid in a legal claim. The EPA and Michigan Department of Environment, Great Lakes, and Energy (EGLE) have established specific guidelines for water testing that must be followed.

Water samples must be collected properly using specialized non-reactive containers to avoid cross-contamination. Testing requires highly sensitive laboratory equipment capable of detecting PFAS at parts per trillion levels. Most importantly, only certified environmental laboratories should conduct these tests to ensure results will stand up in court.

The current health advisory level in Michigan is 70 parts per trillion for combined PFOA and PFOS (two common types of PFAS), though many experts believe even lower levels can cause harm. This makes having precise, properly conducted testing absolutely critical to your case.

Building Strong Legal Evidence for Your Claim

Winning a PFAS contamination case requires more than just proving the chemicals exist in your water. You’ll need to establish several key elements:

Source Identification

Your legal team needs to trace the contamination back to its source. This often involves investigating nearby industrial facilities, military bases, or other operations that historically used PFAS-containing materials like firefighting foam. Our investigators examine historical records, witness testimony, and environmental testing data to connect the responsible parties to your contamination.

Exposure Documentation

How long were you exposed? At what concentration levels? Through which pathways? Documenting your exposure history strengthens your claim by connecting the contamination to potential health impacts. We help clients gather water bills, residency records, and other documentation to establish the timeline and extent of exposure.

Medical Evidence

If you’re experiencing health issues potentially linked to PFAS exposure, medical documentation is crucial. Blood tests can confirm the presence of PFAS in your system, and medical records documenting related conditions create a stronger link between the contamination and your health concerns.

Property Damage Assessment

PFAS contamination can significantly decrease property values. Professional assessments comparing your property’s value before and after contamination discovery provide concrete evidence of financial harm beyond health concerns.

Why Legal Experience Matters in PFAS Claims

PFAS litigation is technically complex and often involves powerful corporate defendants with substantial resources. Having attorneys with specific experience in environmental contamination cases makes a significant difference in outcomes.

At Hanflik Law, we work with certified environmental specialists, medical experts, and forensic investigators to build comprehensive cases. Our team has secured millions in settlements for clients affected by serious environmental harm, including those suffering from toxic exposure.

We understand the science behind PFAS testing and can effectively challenge flawed testing methods or questionable results presented by opposing parties. This technical knowledge, combined with our 50+ years of litigation experience, gives our clients a significant advantage in these complex cases.

Act Quickly: Timing Considerations in PFAS Claims

Michigan has specific statutes of limitations for environmental contamination claims. Additionally, preserving evidence becomes more difficult as time passes. If you suspect PFAS contamination, contacting qualified legal counsel promptly ensures your rights are protected.