Spectrum Engineering
Company Profile
Spectrum Engineering's Services
Spectrum Engineering's Projects
Spectrum Engineering's Clients
Spectrum's SOQ



Mining Companies
Government and Regulatory Agencies


ARCO
Caballo Rojo
Cable Mountain Mining
Echo Bay Exploration
Exxon Coal and Minerals
Garnet Mining
Kaiser Coal
Kennecott Energy
Montana Talc
Rotem Amfert Negev
Northwestern Resources
PAMA
Peabody Coal Company
Thunder Basin Coal
Union Pacific
Yellowstone Coal Company


State of Idaho, Department of Environmental Quality
State of Kansas, Department of Health and Environment
State of Montana DEQ, Environmental Management Bureau
State of Montana DEQ, Mine Waste Cleanup Bureau
State of Montana DEQ, Industrial and Energy Minerals Bureau
State of Montana, Governor's Office
State of Montana, Department of Fish, Wildlife, and Parks
State of Montana, Department of Natural Resources
State of Utah, Division of Oil, Gas, and Mining
State of Wyoming, Department of Environmental Quality
United States Army Corps of Engineers
United States Forest Service (USFS)
United States Bureau of Land Management (BLM)
United States Environmental Protection Agency (EPA)


Private Industry

Utility Companies


AquaTerra Consultants
Billings Bench Water Assoc.
Burke, Williams & Sorensen Law Offices
CH2M Hill
Crowley Law Firm
Diversified Trucking
Inter-Fluve
Kellogg Corporation
Mission Engineering
Molloy Law Firm
Moulton Bellingham Law Offices
Murphy, Kirkpatrick and Fain Law Offices
Rainier Bank
Schafer and Associates
Shumaker Trucking
TerraGraphics
Womack and Associates
Woodward-Clyde


Arizona Public Service
Commonwealth Edison
Detroit Edison
Idaho Power
Kansas City Power and Light
Lower Colorado River Authority
Northern Indiana Public Service
Northern States Power
NRG Energy
Otter Tail Power
Southern California Edison
Southwestern Electric Power Company
Western Energy
Wisconsin Power and Light