Corporate Headquarters
2116 Buchanan Loop
Ferndale, WA 98248
Phone: (360) 671-3936
Fax: (360) 671-8808
Bid Fax: (360) 671-3987
Accounting Fax: (360) 671-0907
WA License No. IMCOGI*215R1
Directions

Eastern Washington Regional Office
3358 Citation Rd. NE
Moses Lake WA, 98837
Phone: (509) 766-5916
Fax: (509) 766-5918
Directions

Seattle Regional Office
316 Nickerson St.
Seattle, WA 98109
(206) 789-0193
Directions

Guam and Pacific Operations
17-3311 Corsair Rd.
Tiyan, GU 96913
Phone: (671) 888-8758

Other License Numbers:
Oregon: 92915
Alaska: 308315
Montana: 46205
Idaho: 12741-AAA-1-2-3
Guam: CLB09-0456

Jobsite Offices:

Airway Heights
2140 S. Lawson St
Airway Heights, WA 99001
Phone: (509) 244-6345
Directions

Anacortes
14489 River Bend Rd.
Mt. Vernon, WA 98273
Phone:(360) 982-2930
Directions

Kettle Falls WWTP
768 Old Kettle Rd.
Kettle Falls, WA 99141
Phone: (509) 738-4144
Fax: (509) 738-4146
Directions

Madison Valley
636 Lake Washington Blvd.
Seattle, WA 98112
Phone: (206) 420-1444
Directions

Terminal 10
3045 16th Ave SW
Seattle, WA 98121
Directions

Associations