Geochemistry Services

Contact Information

David A. Pickett, Ph.D.
Senior Program Manager
(210) 522-5582


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SwRI characterizes the geochemistry, hydrogeology, and structural geology of the Edwards Aquifer in Texas to enable governing authorities to more effectively manage critical water resources.

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SwRI reactive transport studies of the Peña Blanca Natural Analog Site (Mexico) include field and laboratory investigations at a wide range of scales as well as computer modeling of the alteration of uraninite (gray/black colors) to uranyl oxyhydroxides and uranyl silicates (yellows) as oxidizing fluids advance (from left to right in this photomicrograph; ~7 micron field of view).

Geochemistry services at Southwest Research Institute (SwRI) include field investigations, laboratory studies, and modeling of:

  • Geochemical solubilities
  • Complexation
  • Colloid formation, transport, and filtering
  • Reactive transport
  • Sorption
  • Co-precipitation
  • Ion exchange
  • Thermodynamic interactions
  • Kinetic interactions
  • Mass transfer interactions

Extensive experience in investigating and evaluating environmental mobility of a wide range of contaminants is applied successfully to diverse projects, including:

  • Nuclear waste disposal
  • In situ copper extraction
  • Uranium mining and leaching of mill tailings
  • Risk assessment
  • Decommissioning of industrial facilities

Multidisciplinary teams are formed to implement National Environmental Policy Act (NEPA) requirements, such as preparing environmental assessments and environmental impact statements.

Related Terminology

geochemistry services  • geochemistry field investigations  •  computer modeling  • geochemical olubilities  • laboratory studies  • complexation •  colloid formation  •  geochemical transport  • sorption  • co-precipitation  • ion exchange  • thermodynamic interactions  •  kinetic interactions  • mass transfer interactions  •  environmental mobility of contaminants  • nuclear waste disposal  •  in situ copper extraction  • uranium mining  •  leaching of mill tailings  • risk assessment  • industrial facilities decommissioning  • groundwater desalination

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.