Contact Hyalite

Hyalite Environmental consists of two partners that provide work either independently or as part of a team for your company. Together, Hyalite has over forty years of combined experience in scientific investigations, research, consulting, project management, and implementation of environmental projects. The partners' diverse specialties and experiences enable them to provide technical and scientific support to ensure client service and professional quality.

    • Carol Lee-Roark has a Ph.D. in geology and is a registered Professional Geologist (P.G.). Her background includes exploration geology, modeling, botany and biogeochemistry, with extensive experience in information science, data analysis and interpretation, and preparation of compliance documents and reports. Carol most often takes the lead on hazardous materials projects, site characterizations and general scientific investigations.
    Carol K. Lee-Roark, Ph.D., P.G.
    PO Box 90
    Gallatin Gateway, MT 59730
    406.600.9450
    • Chris Thelen is a registered Professional Engineer (P.E.) with a B.S. in civil engineering and an M.S. in environmental engineering. Her engineering background involves extensive experience in the environmental compliance area of water quality, hazardous waste and regulatory compliance. Her interest in land use planning and natural resource management has led Chris to take the lead for Hyalite's involvement in wetlands issues, erosion control, surface water runoff, watershed planning, TMDL development, and storm water control.
    Christina S. Thelen, P.E.
    Bozeman, MT 59715
    406.580.6622