Alex Gregory looks through a sample of the double-walled pipe that transports lake material from the bottom of the lake to the consolidation area.

Alex Gregory looks through a sample of the double-walled pipe that transports lake material from the bottom of the lake to the consolidation area.

Alex Gregory looks through a sample of the double-walled pipe that transports lake material from the bottom of the lake to the consolidation area.

Alex Gregory looks through a sample of the double-walled pipe that transports lake material from the bottom of the lake to the consolidation area.