Gilpin Geosciences

Lettis Consultants International, Inc. (LCI), based in California, is the world's largest consultancy focused on geohazards and earth sciences. With a collaborative culture and extensive research background, LCI excels in seismic hazard analysis and geologic hazard assessments for critical infrastructure projects globally. Specializing in engineering geology, geotechnical services, and Geographic Information Systems (GIS), LCI employs state-of-the-art methods and data integration techniques to address complex geoscience challenges. Their team of professionals is recognized for delivering high-quality expertise to meet the objectives of various high-consequence facilities, including nuclear power plants and dams. Generated from the website

Weiss Associates serves the private and public sectors as an environmental science, engineering and management resource company since it s founding in 1980. The company provides characterizing and premeditating of soil and ground water as well as permitting, chemical emissions inventory and regulatory strategy services. The company has completed more than 1,900 subsurface characterizations; designed, installed and/or maintained more than 450 ground water and soil remediation systems; and have completed all types of CERCLA and RCRA compliance documents. Its clients include underground storage tank sites as well as complex industrial and government facilities. The team at Weiss is made up of hydro geologists; geologists; civil, environmental, mechanical and chemical engineers; technical illustrators and writers; and contract management professionals. The company has offices in Emeryville, Mountain View and Livermore, Calif., as well as Rochester, N.Y.