Corps installs monitoring wells at former defense site
Contractors use a track-mounted rotosonic drill rig to install monitoring wells at the Raco Army Airfield and Missile Site, in the Hiawatha National Forest in Michigan as part of the ongoing environmental remedial investigation.

Download Image: Full Size (4.83 MB)
Photo by: Josh Van Bogaert |  VIRIN: 140821-A-CE999-123.JPG