About ECF

Advancing environmental clarity through science, integrity, and proven expertise.

Hands holding soil and seedling

Trusted Experts in Contaminant Source Identification

Environmental Chemistry & Forensics LLC (ECF) is a nationally operating environmental consulting firm specializing in advanced chemical forensic services and contaminant source identification.

Scientifically Proven Solutions for High-Stakes Sites

We provide scientifically defensible analyses to support environmental investigations, regulatory decision-making, risk assessments, and litigation. Our work helps clients understand complex contamination scenarios, trace the origins of industrial releases, and make confident, informed decisions backed by rigorous scientific evidence.

Committed to Scientific Truth

Our mission is to deliver precise, defensible, and innovative chemical forensic solutions that illuminate the true origins of environmental contamination and support responsible decision-making. We are committed to advancing environmental science, strengthening risk models, and enabling clients to resolve complex challenges with clarity, credibility, and confidence.

Environmental researchers conducting field analysis
Ecologist conducting field analysis by river

Our Forensic Philosophy

At ECF, we believe that every site in question tells a story-one that must be uncovered with accuracy, discipline, and scientific integrity. Our approach combines:

  • Advanced chemical fingerprinting and analytical methods

  • Deep expertise in contaminant behavior across all environmental media

  • Objective, defensible interpretation of complex datasets

  • Integration of field, laboratory, and modeling insights

Digging Deeper for Defensible Answers

We look beyond surface-level results to decipher mixed plumes, differentiate industrial inputs, and quantify background conditions with transparency and precision. Every conclusion we deliver is grounded in evidence, proven methodology, and decades of specialized casework.

Industries We Serve

ECF partners with clients across diverse technical and regulatory environments, providing clarity where uncertainty can be costly. From early-stage site assessment through expert witness testimony, our services are built to withstand scrutiny at every level. We support:

Environmental engineering and consulting firms

Industrial and Manufacturing Clients

Legal Teams and Litigation Professionals

Regulatory Agencies and Government Partners

Energy, Petroleum, and Chemical Sectors

Insurance and Remediation Program Managers

The Team That Makes Clarity Possible

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Network of Industry Experts


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Stephen Emsbo-Mattingly

Senior Consultant

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Specialized Forensic Laboratories