Arches Toxic Tort Litigation
Prove exposure. Establish causation. Advance the case.
Arches turns fragmented exposure and medical data into individualized, physician-reviewed causation reports for PFAS/AFFF & EtO litigation—helping your firm qualify claims with confidence, manage large dockets at scale, and advance the right cases.
Trusted by plaintiff firms
The problem
Exposure is not causation.
Proving PFAS/AFFF & EtO exposure is only the first step. Court-ready causation reports within aggressive MDL deadlines are essential for case defensibility.
Potential exposure
Proximity only gets you so far.
Finding PFAS or EtO near—or directly at—a plaintiff’s address only establishes potential exposure. It doesn’t establish who is responsible or the source-to-plaintiff pathway your claims depend on.
120 days
The compliance clock is running.
Applicable toxic tort cases subject to CMO 35 require expert causation disclosures within 120 days of filing. Possible exposure has to become defensible causation—fast.
Docket complexity
Manual causation doesn’t scale.
Every claimant has a different address history, water source, medical record, and exposure pathway. Hundreds or thousands of claims still require individual scrutiny.
Expert support
The science has to survive scrutiny.
Firms need scientifically supported general causation, claimant-specific exposure analysis, condition-specific medical expertise, and a differential diagnosis to support the individualized causation opinion.
The challenge isn’t finding exposure data. It’s turning that evidence into a causation position that can withstand scientific, medical, and legal scrutiny.
Enterprise-Grade Security and Controls
Built for the confidentiality demands of today’s leading legal teams.
- SOC 2 Type II
- GDPR
- HIPAA
- Zero AI training on your data
The Arches Mass Tort Causation Engine
We don’t stop at exposure.
We prove causation.
Arches connects environmental evidence, hydrological analysis, claimant history, and medical records to scientifically establish the exposure pathway from contamination source to injured plaintiff.
From that evidence, Arches generates general and specific causation reports, then routes each case through its specialized medical network to determine whether the evidence supports individual causation.
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01 — Prove exposure
Was your client exposed?
Analyze claimant address history, water sources, environmental evidence, and other relevant exposure factors through Arches’ proprietary causation engine to scientifically verify exposure nexus.
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02 — Trace causation
How did PFAS or EtO reach them—and from which defendants?
Trace exposure at the address level by mapping the pathway from contamination source to the plaintiff’s home, documenting concentration levels, and identifying proven primary defendants.
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03 — Advance the case
Can your claims survive scrutiny—and unlock greater value?
Turn exposure proof and defendant identification into a general causation report, then route it through Arches’ specialized physician network for review. As qualified claims advance, Arches can generate a specific causation report to support individualized causation, withstand claim by claim scrutiny, and strengthen the case moving forward.
Exposure proof Primary defendants General causation report Physician review Defensible claim Specific causation report
Smarter claims. Stronger case value.
Qualify the right plaintiffs.
Advance the right cases.
01 — Establish a defensible position
Turn qualified plaintiff claims into evidentiary causation reports.
02 — Qualify with confidence
Know which claims withstand the defense’s scrutiny.
03 — Scale individualized PFAS & EtO causation
Graduate every case from generic analysis to per-claim at docket scale.
How it works
From docket intake to expert‑reviewed causation.
Select a step to see that screen
Your PFAS/AFFF docket is already moving
From case inception to deadline, build your causation position with confidence.
See how Arches Mass Tort can help your firm verify exposure, establish causation, and generate physician-reviewed expert work product across your docket.
Facing an expert disclosure deadline? Let us know when you schedule.