GRAM - Key Persons


Chuck Steltenpohl

Job Titles:
  • Senior Boat Operator & Environmental Technician

Dan Charbonneaux

Job Titles:
  • Geologist - Field Team Lead

Duane Jacques

Job Titles:
  • Consulting Environmental Scientist

Janet Cook

Job Titles:
  • Senior Archaeology Technician

Kristen Tiede

Job Titles:
  • Project Archaeologist

Margaret Clark

Job Titles:
  • Archaeologist

Michelle Riffe

Job Titles:
  • Senior Technical Editor
*Bachelor of Arts, General Studies, with a Major in Psychology and a Minor in Communication: Washington State University

Mikheil Tatishvili

Job Titles:
  • Environmental Scientist

Molly Swords

Job Titles:
  • Senior Archaeologist - Cultural Services Lead

Nathan Bowles

Job Titles:
  • Managing Member - Operations, Principal Engineer
Nathan has many years of experience as an engineer, field scientist/geologist, and project manager for various environmental, hydrogeological, and engineering projects for clients throughout the western United States. Nathan is a registered Professional Engineer with an extensive background in environmental science and geology. His relevant experience includes drilling and well installations, soil and groundwater sampling, and the selection, design, and implementation of remediation technologies. As the Principal Engineer and Operations Manager for GRAM Northwest, Nathan is responsible for overseeing operations and working alongside clients across the Northwest.

Suzanne Guess Bowles

Job Titles:
  • Managing Member - Administration
Suzanne oversees all aspects of the company's business, including contracting and accounting, and acts as a liaison between the company and its clients and partners for all business administrative functions. Her previous technical work experience primarily includes air modeling and air-quality permitting for natural gas clients in the southwestern United States. Suzanne was responsible for running air-modeling programs and for the development and technical editing of permit applications and reporting documents submitted to state agencies and the Environmental Protection Agency on behalf of the clients.