ARLINGTON, Va. (AP) — The Coast Guard says an oily substance on the Potomac River has "largely dissipated."
The Coast Guard has placed floating barriers and absorbent material at the sewage outfall site where the oily substance was found to be entering the water.
Lt. David Ruhlig, an operations section chief with the Coast Guard, says in a statement that only "minor wisps" of oil are now being observed on the surface of the river. At one point, the oily sheen extended about 8 miles from just north of Reagan National Airport to just north of the Woodrow Wilson Bridge.
Lab tests are being conducted to determine what the substance is. The location of the spill itself is unknown.
Officials say 18 oiled geese are being cared for by a bird rescue organization.