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Specialties & Experience

General Specialties: Environmental and Chemistry & Chemicals

Specialty Focus: forensic chemistry, GC/MS, MS/MS, organic, hydrocarbons, stable isotope, ICP, PFAS, PFC, LC/MS/MS, fate, inorganic, organic, method development, data validation, laboratory, auditing, CWA, NPDES, CAA, SWDA, CERCLA, RCRA, radiochemistry, radionuclides, accreditation, standards, interpretation, EPA

Education: Master of Science, Colorado School of Mines; Bachelor of Science, Allegheny College

Years in Practice: 30+


Additional Information

David has over 30 years of experience in analytical chemistry and quality assurance. His career includes environmental analytical chemistry, energy research and development, specialty laboratory operation and management, and consulting. Mr. Gratson is knowledgeable in the fields of organic, inorganic, and radionuclide analysis. He has performed and/or overseen more than 800 technical and statistical reviews of project planning or project reporting documents, and 50 audits since 2000. The range of projects has included hydraulic fracturing studies; mine waste characterization; innovative technology development; and superfund investigations. He provided extensive expertise in systematic planning for projects that spanned a wide variety of industries and analytes. Mr. Gratson is also knowledgeable and experienced in the preparation of and/or third-party review of analytical standard operating procedures (SOPs), field operation SOPs, and Quality Assurance Project Plans (QAPP). Mr. Gratson has worked in the energy R&D field, studying techniques for producing fuels and specialty chemicals using gasification and pyrolysis. He utilized direction mass spectrometry analysis, including MS/MS for identification of chemicals produced in laboratory and pilot-scale operations. He was co-developer of a transportable molecular beam mass spectrometer. At NASA, he managed a laboratory that provided qualitative and quantitative analysis (GC/FTIR/MS) of offgas components associated with the Space Shuttle and Navy Submarine environments. He provided Chemistry and QA oversight for the development of analytical and sampling programs associated with Brownfield redevelopment projects. For that project he also developed guidance for third-party data validation, data usability analysis, data reporting, and electronic data deliverable formatting requirements.