A U.S. Navy investigation looked at how fuel from a tank farm leaked into a water well.
The mud- and rust-encrusted guns were discovered by accident last year when the Savannah River was being dredged of sediment.
The lawsuit was filed in federal court in Washington, D.C.
At least seven sailors, including the pilot, were injured when the aircraft hit the deck of the USS Carl Vinson.
State officials are seeking to hold the U.S. Navy accountable for a leak at a fuel tank farm that sits above an aquifer that provides drinking water for Oahu.
The U.S. Navy has suspended use of World War II-era fuel tank farm above a Hawaii aquifer that supplies nearly 20% of Honolulu’s drinking water.
"There is no doubt that the future sailors aboard this ship will be inspired by Milk’s life and legacy,” said Navy Secretary Carlos Del Toro.
The engineer attempted to pass information about the design of American nuclear-powered submarines to someone he thought represented a foreign government.
Officials said one crewmember had been rescued and “search efforts continue for five additional crewmembers.”
A Navy ship was christened in Lewis' honor and President Joe Biden urged lawmakers to protect "the sacred right to vote" in the late congressman's memory.