SAN DIEGO -- A sewage pipe erroneously connected to a storm drain at Naval Base San Diego caused more than 10 million gallons of raw sewage to leak into San Diego Bay over the past two years, Navy officials revealed Friday.

The problem was discovered and fixed Friday while work was being done on a base construction project, according to the Navy Region Southwest public affairs office.

The two pipes were improperly connected during construction of the 1,032-bed, 12-story Palmer Hall Barracks in 2004, according to the Navy.

Navy officials estimate that about 10.25 million gallons of sewage flowed into the bay over the past two years.

The waste from Palmer Hall Barracks is being diverted into a sanitary sewage system until a permanent line is installed.

"The Navy is extremely concerned about this release, and takes environmental stewardship very seriously," according to a statement from the Navy. "We will continue to work with local authorities and the regional water control board."

An investigation has been launched to determine how the sewage discharge line at the barracks was connected to the wrong pipe.