But retired Coast Guard Adm. Thad Allen, the Obama administration's spill response chief, said a seep had been detected a distance from busted oil well, and he demanded that BP provide results of further testing of the seabed Sunday night. Allen didn't say what was coming from the seep.
The concern all along — since pressure readings on the cap weren't as high as expected — was a leak elsewhere in the wellbore, meaning the cap may have to be reopened to prevent the environmental disaster from becoming even worse and harder to fix.
"When seeps are detected, you are directed to marshal resources, quickly investigate, and report findings to the government in no more than four hours. I direct you to provide me a written procedure for opening the choke valve as quickly as possible without damaging the well should hydrocarbon seepage near the well head be confirmed," Allen said in a letter to BP Managing Director Bob Dudley.