The officer who presided over their hearing has made his recommendation to Rear Adm. Frank Morneau, the head of the Navy Expeditionary Combat Command, a spokeswoman said Thursday.

The recommendation has not been released. Morneau is to decide whether to proceed to court-martial, order administrative sanctions or dismiss the charges.

The commander of Mobile Diving and Salvage Unit Two was relieved of his duties. The Navy cited a "loss of confidence in his ability to command."

Officials at Aberdeen Proving Ground say there had been no fatalities or serious injuries at the Super Pond until the deaths this year.

Col. Gordon A. Graham, commander of the Aberdeen Test Center, suspended operations at the facility after the deaths of Reyher and Harris.

The Super Pond — officially, the Underwater Explosion Test Facility — was built in the 1990s to give the Navy a place to conduct underwater shock tests that would not harm fish or other aquatic creatures.

The 1,000-foot-long, 150-foot-deep pond is carved out of the bank of the Bush River and can withstand the equivalent of 4,100 pounds of TNT. It has been used to shock-test ships, submarines, torpedoes, missiles and other systems.

The Super Pond has also been used for training exercises.

Baltimore Sun Media Group reporter Allan Vought contributed to this article.