Contact Us    

Helena, MT
p. 406.442.5768
f. 406.449.6653
1.800.571.7346

Billings, MT
p. 406.896.1716
f. 406.896.1725

Personnel

Permitting   Stack Testing
Harold W. Robbins
President
  Calvin W. Loomis, P.E.
Project Engineer
Jeffrey T. Chaffee, P.E.
Vice President
  William G. Shaw, P.E.
Project Engineer
Kevin M. Mathews
Project Engineer
  Devin D. McCarthy
Staff Engineer
Christopher P. Hiltunen, P.E.
Project Engineer
  David S. Blankenship
Senior Environmental Technician
Michael Machler
Project Scientist
  James Wollenberg
Environmental Technician
Joseph S. Peterson
Project Engineer
   
G. Nathan Bartow
Project Engineer
  Ambient Monitoring
Rebecca Picchioni, P.E.
Project Engineer
  Christopher P. Hiltunen, P.E.
Project Engineer
Bret W. Gallo
Project Engineer
  Don V. Milmine, E.I.T.
Project Engineer
Steve Freyberger
Air Specialist/Billings Office Manager
  Jeffrey S. Bell
Senior Environmental Technician
Derek Fleming, E.I.
Staff Engineer
   
Grant Rodway, E.I.
Staff Engineer
  Administration
    Erik Anspach, CPA
Treasurer
    Kay M. Johnson
Office Coordinator
     

 

Helena
1400 11th Avenue
Helena, MT 59601

Billings
1111 Maggie Lane
Billings, MT 59101