Subterranean Drilling, Seattle


Onni Group


CME 55 LCX and 60 ton crane


Using a 60 ton crane, lowered a CME 55 LCX drill rig 80 feet below ground level to drill environmental monitoring wells.

Installed thirty-four permanent environmental monitoring wells including 30 40-foot by 2-inch wells and 4 30-foot by 2-inch wells. Later, our team installed well monuments to finished grade. Client will periodically collect and test water samples per DOE requirements.


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  • Chains threaded through the drill rig in preparation to hoist it into place.